STATE DETERMINATION DEVICE, STATE DETERMINATION METHOD, FAILURE ESTIMATION DEVICE, FAILURE ESTIMATION METHOD, AIR CONDITIONING SYSTEM, AND AIR CONDITIONER
This state determination device comprises: a current detection unit that detects a measured current value, which is a measured value of a drive current of a compressor; and an estimation unit that estimates an estimated current value, which is an estimated value of the drive current of the compressor. Furthermore, the state determination device comprises a determination unit that calculates the ratio between the measured current value and the estimated current value, and determines the state of the compressor by using the calculated ratio. As a result, the state of the compressor can be determined even during normal operation without requiring any special operation or device.
Provided is an air conditioner indoor unit that suppresses worsening of the power consumption of an air conditioner by properly positioning an electrical component box that is provided in a space that is above a discharge port that is provided in a housing and in front of a heat exchanger that is inside the housing. An air conditioner indoor unit (1) comprises a housing (2), a heat exchanger (7) that is provided inside the housing (2), a blowing fan (8) that is provided inside the housing (2) so as to be surrounded by the heat exchanger (7), and an electrical component box (20) that accommodates a control board (22) and an electronic component (23) and is provided in a space (A) that is above a discharge port (5) that is provided in the housing (2) and in front of the heat exchanger (7) inside the housing (2). The electrical component box (20) is positioned such that a lower end surface (20a) is above a lower end (8a) of the blowing fan (8) and a rear surface (20b) is inclined 20°–30° forward with respect to a plane (S) that extends along the up-down direction and the left-right direction of the housing (2).
[Problem] To provide a heat exchanger that makes it possible to determine, using a more rapid method, whether fluid outlet/inlet ports and fluid flow passages, which should be separated by isolating portions formed in metal plates stacked in a stacked-type heat exchanger, are in communication with one another. [Solution] A plurality of first metal plates and a plurality of second metal plates are stacked alternately. Each of the plurality of first metal plates is provided with: a first flow path through which a first fluid flows; a first outlet/inlet port and a second outlet/inlet port; a first through-hole and a second through-hole that allow a second fluid to pass through; a first isolating portion that separates the first flow path and the first through-hole; and a second isolating portion that separates the first flow path and the second through-hole. Each of the plurality of second metal plates is provided with: a second flow path through which the second fluid flows; a third outlet/inlet port and a fourth outlet/inlet port; a third through-hole and a fourth through-hole that allow the first fluid to pass through; a third isolating portion that separates the second flow path and the third through-hole; and a fourth isolating portion that separates the second flow path and the fourth through-hole. A groove is formed in at least one of the first isolating portion, the second isolating portion, the third isolating portion, and the fourth isolating portion.
F28F 3/08 - Éléments construits pour être empilés, p. ex. pouvant être séparés pour leur nettoyage
F28D 9/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les sources de potentiel calorifique se déplaçant l'une par rapport à l'autre suivant un angle
F28F 3/00 - Éléments en forme de plaques ou de laminésEnsembles d'éléments en forme de plaques ou de laminés
A three-phase motor according to one embodiment of the present invention includes: a stator core having 3n (n is a natural number 2 or greater) teeth; an insulator having an outer wall formed in an annular shape and 3n winding bodies protruding inwardly from the outer wall; 3n coils formed by winding conductive wires around the teeth via the winding bodies; and a terminal connecting, with each other, three neutral wires extending from each of the coils of each of the three phases. The insulator is formed with a housing portion in which the terminal is housed, and each of the three neutral wires includes an outer circumferential conductor portion drawn from the outer wall to the outer diameter side and an inner circumferential conductor portion drawn from the outer wall to the inner diameter side, and one end of the inner circumferential conductor portion is electrically connected to the terminal.
H02K 3/46 - Fixation des enroulements sur la structure statorique ou rotorique
F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
H02K 3/52 - Fixation des enroulements de pôles saillants ou de leurs connexions
Provided is a heat exchanger that utilizes the characteristics of individual fluids and makes it possible to both improve heat transfer performance and maintain reliability in a laminated heat exchanger using fluids with different physical properties. The heat exchanger is formed by laminating a plurality of heat transfer plates. The plurality of heat transfer plates include a plurality of first heat transfer plates and a plurality of second heat transfer plates, and the first heat transfer plates and the second heat transfer plates are laminated in an alternating manner. A first flow path through which a first fluid flows is formed in each of the plurality of first heat transfer plates, and a second flow path through which a second fluid flows is formed in each of the plurality of second heat transfer plates. The first flow path is formed by a first flow path wall, and the second flow path is formed by a second flow path wall. The length of the first flow path wall is shorter than the length of the second flow path wall.
F28F 3/04 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations les moyens faisant partie intégrante de l'élément
F28D 9/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les sources de potentiel calorifique se déplaçant l'une par rapport à l'autre suivant un angle
A refrigeration cycle device according to one embodiment of the present invention comprises a refrigerant circuit, a refrigerant temperature sensor, a control device, and a high-temperature refrigerant supply means. The refrigerant circuit has a compressor, a heat-source-side heat exchanger that is an air-refrigerant heat exchanger, a use-side heat exchanger that is a water-refrigerant heat exchanger, a pressure reducer disposed between the heat-source-side heat exchanger and the use-side heat exchanger, and a flow path switching valve that switches the flow direction of refrigerant discharged from the compressor. The refrigerant temperature sensor detects the temperature of the refrigerant flowing into the use-side heat exchanger from the pressure-reducer side. When starting a reverse defrosting operation, the high-temperature refrigerant supply means supplies a heating refrigerant, which is a refrigerant having a temperature higher than the temperature of the refrigerant detected by the refrigerant temperature sensor, to the use-side heat exchanger.
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
One embodiment of the present invention is an outdoor unit for an air-conditioning device, the outdoor unit comprising a housing that has an internal space that is divided into a heat exchange chamber and a machine chamber. The housing has a ventilation part through which external air that flows into the machine chamber passes. The ventilation part has a ventilation port, a guide part, and a shielding part. The guide part has a first opening part that opens downward to the outside of the housing. The shielding part has a second opening part that opens downward to the inside of the housing and has an opening length that is shorter than the opening length of the first opening part. An upper end of the ventilation port is positioned above a lower end of an electrical component that is provided in the machine chamber.
An indoor unit of an air conditioning device according to one embodiment of the present invention comprises an indoor heat exchanger, a housing, a refrigerant sensor, and a drain pan. The indoor heat exchanger has a first end portion to which a refrigerant pipe capable of being connected to the outdoor unit is connected. The housing includes: a heat exchange chamber in which the indoor heat exchanger and a portion of the refrigerant pipe are disposed; an outer surface portion including a blowout port / blowing port; and a first side surface portion and a second side surface portion positioned on both sides in the left-right direction of the outer surface portion. The refrigerant sensor is disposed inside the first side surface portion, and detects refrigerant leaking from the indoor heat exchanger or the refrigerant piping to the heat exchange chamber. The drain pan is disposed in the heat exchange chamber and has a dew receiving surface for receiving condensed water dripping from the indoor heat exchanger, the dew receiving surface being inclined downward from the second side surface portion toward the first side surface portion.
An indoor unit of an air conditioning device according to one embodiment of the present invention comprises an indoor heat exchanger, a housing, and a refrigerant sensor. Refrigerant piping that can be connected to an outdoor unit is connected to one end of the indoor heat exchanger. The housing has a heat exchange chamber that accommodates the indoor heat exchanger and a portion of the refrigerant piping, an opening, and a lid part that covers the opening. The refrigerant sensor is attached to the lid part and detects refrigerant leaking from the indoor heat exchanger or the refrigerant piping to the heat exchange chamber.
F24F 11/89 - Aménagements ou montage des dispositifs de commande ou de sécurité
F24F 11/36 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques aux fuites de fluides échangeurs de chaleur
Provided are a display device, a refrigeration cycle system, and a display method with which it is possible for an operating state of an air conditioner to be easily confirmed. An information acquiring unit (11) acquires, from an air conditioner (20) having a refrigerant circuit including a plurality of components, information relating to parameters indicating the state of each component. If the refrigerant circuit includes a plurality of identical components, a screen generating unit (12) generates a display screen indicating operating information including a refrigerant circuit diagram of the refrigerant circuit drawn using a representative configuration diagram representing the plurality of identical components, and information relating to the parameters of each of the plurality of identical components acquired by the information acquiring unit (11). A display unit (14) displays the display screen generated by the screen generating unit (12).
[Problem] To improve the capability of dividing a gas-liquid two-phase refrigerant into flow paths. [Solution] The heat exchanger has a plurality of metal plates that includes a plurality of first metal plates and a plurality of second metal plates. Each of the plurality of first metal plates is provided with a first flow path through which a first fluid flows, and a first through-hole that forms a header space for causing the first fluid to flow into the first flow path. Each of the plurality of second metal plates is provided with a second flow path through which a second fluid flows, and a second through-hole that forms the header space. A first side wall is provided at a peripheral edge part of each of the plurality of first metal plates, and a second side wall is provided at a peripheral edge part of each metal plate of the plurality of second metal plates. The header space is formed by laminating the plurality of first metal plates and the plurality of second metal plates. The header space is provided with a cross-sectional area adjustment part for adjusting a flow path cross-sectional area of the header space.
F28F 3/08 - Éléments construits pour être empilés, p. ex. pouvant être séparés pour leur nettoyage
F28D 9/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les sources de potentiel calorifique se déplaçant l'une par rapport à l'autre suivant un angle
F28F 3/00 - Éléments en forme de plaques ou de laminésEnsembles d'éléments en forme de plaques ou de laminés
An air conditioning device includes: a plurality of outdoor units; and a plurality of indoor units, the air conditioning device capable of selecting either a first refrigerant circuit state or a second refrigerant circuit state, the indoor units capable of individually performing a cooling operation and a heating operation in the first refrigerant circuit state, the indoor units capable of simultaneously performing a cooling operation or a heating operation, a communication unit of one of the plurality of outdoor units transmitting, when the one outdoor unit has selected either the first refrigerant circuit state or the second refrigerant circuit state, a state signal including information relating to the selected refrigerant circuit state to a communication unit of a different outdoor unit, the different outdoor unit that has received the state signal selecting the same refrigerant circuit state as the refrigerant circuit state selected by the one outdoor unit.
F24F 11/83 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur
F24F 1/0068 - Éléments intérieurs, p. ex. ventilo-convecteurs caractérisés par la disposition des conduites réfrigérantes hors de l’échangeur de chaleur dans l’enveloppe de l’élément
Provided is a refrigeration cycle device having a heat storage heat exchanger in which, even when a cooling operation is performed, a refrigerant is prevented from staying inside the heat storage heat exchanger to minimize a reduction in the amount of the refrigerant circulating in a refrigerant circuit, thereby suppressing a decrease in capacity of the refrigeration cycle device. The refrigeration cycle device includes an indoor heat exchanger (2), an outdoor heat exchanger (3), a heat storage heat exchanger (4), a switching valve (6), and a control device (7) that controls the switching valve (6). The switching valve (6) switches a flow path between a cooling operation in which the outdoor heat exchanger (3) is caused to function as a condenser and the indoor heat exchanger (2) is caused to function as an evaporator, and a heat storage cooling operation in which at least the indoor heat exchanger (2) is caused to function as an evaporator when the heat storage heat exchanger (4) is caused to function as a condenser. The control device (7) controls the switching valve (6) so as to switch from the cooling operation to the heat storage cooling operation when a detection value of a heat storage temperature sensor (HS) that detects the temperature of a heat storage material during the cooling operation is lower than a first predetermined temperature.
F24F 11/875 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des appareils de stockage d’énergie thermique
F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
F24F 140/00 - Entrées de commandes relatives aux états du système
F24F 140/20 - Température du fluide échangeur de chaleur
A stator (22) of a motor (5) is provided with: an outer circumferential wall section (35) in which a plurality of slits (48) are formed; a plurality of windings (24); and a plurality of crossover wires (42). A first crossover wire (42-U1) of the two crossover wires (42-U1 to 42-U2) of each phase (U) connects two windings (24-U1, 24-U2) of the four windings (24-U1 to 24-U4) of the phase (U) and passes through two slits (48-U1, 48-U2) of the four slits (48-U1 to 48-U4) of the phase (U) so that a portion of the first crossover wire (42-U1) is disposed on the outer circumferential side of the outer circumferential wall section (35). The second crossover wire (42-U2) connects the two windings (24-U3, 24-U4) and passes through the two slits (48-U3, 48-U4) so that a portion of the second crossover wire (42-U2) is disposed on the outer peripheral side of the outer peripheral wall part (35). The depths of two of the four slits of each phase are the same.
[Problem] To provide a refrigerant detection device capable of shortening the time required to detect leakage of a refrigerant. [Solution] According to an embodiment, this refrigerant detection device comprises: a housing that is attached to a wall surface of an indoor space, which is a space to be air-conditioned by an air conditioner, and has a bottom surface facing a floor surface of the indoor space; and a refrigerant sensor that is housed inside the housing and detects leakage of a refrigerant. The housing has a first opening that is provided on the bottom surface and allows the inside and the outside of the housing to communicate with each other, and a second opening that is provided on a surface different from the bottom surface and allows the inside and the outside of the housing to communicate with each other. The first opening is provided at a position opposing the refrigerant sensor when viewed from below in the vertical direction.
F24F 11/36 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques aux fuites de fluides échangeurs de chaleur
F24F 1/0314 - Climatiseurs individuels monoblocs pour le conditionnement de l'air, c.-à-d. avec tout l'appareillage nécessaire au traitement placé dans une enveloppe caractérisés par des aménagements de montage montés sur un mur
F24F 11/89 - Aménagements ou montage des dispositifs de commande ou de sécurité
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
A sealed compressor includes a base member that is welded to a compressor main body container and that supports the compressor main body container. The compressor main body container includes a bottom shell. The base member includes a mounting surface on which the bottom shell is mounted. At the center of the mounting surface, an opening is formed into which the central part of the bottom shell is fit. The base member is joined to the bottom shell by a plurality of welding spots formed at intervals in the circumferential direction of the opening. The plurality of welding spots are formed to extend for a predetermined length in the circumferential direction of the opening and are positioned in between the outer peripheral border of the mounting surface and the opening rim of the opening.
In a motor control device 100a: a voltage command value generator 14 generates a voltage command value for a motor M on the basis of a speed error between a speed command value and the speed of the motor; a control switching determination unit 15 determines whether or not the control range of the motor M is in a voltage saturation range; an interference-nullifying correction value calculator 14b7A calculates a correction value for nullifying interference caused by the induced voltage of the motor M; and when the control switching determination unit 15 has determined that the control range is in the voltage saturation range, the voltage command value generator 14 generates the voltage amplitude of an output voltage to be applied to the motor M and the voltage phase of the output voltage to be applied to the motor M, and calculates a voltage command value corrected with the correction value.
An air conditioner according to an embodiment includes a compressor that compresses a refrigerant, an indoor unit that performs heat exchange between air inside a room and the refrigerant, an outdoor unit that performs heat exchange between outdoor air and the refrigerant, a heat storage unit that performs heat exchange with the refrigerant, a room temperature sensor that detects an indoor temperature that is a temperature inside the room, and a control unit that drives the compressor based on a difference between the indoor temperature and a set temperature, and that also allows the heat storage unit to perform heat exchange when the difference of the set temperature falls below a predetermined value.
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
F24F 11/875 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des appareils de stockage d’énergie thermique
There is provided an indoor unit of an air conditioner to suppress the decrease in the amount of heat exchange between a refrigerant and air due to pressure loss. In the indoor unit of the air conditioner, a second heat exchange part has a high wind velocity region where a wind velocity of air passing through the second heat exchange part is relatively high and a low wind velocity region where the wind velocity of air is relatively low, and the high wind velocity region is located above the low wind velocity region in a direction of gravity. At least one first heat transfer tube is disposed in the high wind velocity region, and at least one second heat transfer tube is disposed in the low wind velocity region. A first header is connected to each of the first heat transfer tube and the second heat transfer tube. The first header has a first internal space to which the first heat transfer tube and the second heat transfer tube are commonly connected. When using a heat exchanger as a condenser, the refrigerant flowed out from a first heat exchange part 110 flows into the first internal space of the first header, and then, the refrigerant flows into each of the first heat transfer tube and the second heat transfer tube from the first internal space.
F24F 1/0063 - Éléments intérieurs, p. ex. ventilo-convecteurs caractérisés par des échangeurs de chaleur par le montage ou la disposition des échangeurs de chaleur
F24F 1/0003 - Climatiseurs individuels pour le conditionnement de l'air, p. ex. éléments séparés ou monoblocs ou éléments recevant l'air primaire d'une station centrale caractérisés par un agencement modulaire, c.-à-d. dans lesquels des parties du système de conditionnement d’air, p. ex. l'évaporateur et le condenseur, sont disposées dans des éléments séparés
F24F 1/0057 - Éléments intérieurs, p. ex. ventilo-convecteurs caractérisés par des dispositions de montage fixés dans ou sur un mur
F24F 1/009 - Éléments intérieurs, p. ex. ventilo-convecteurs caractérisés par des aménagements pour le chauffage
F24F 1/06 - Éléments extérieurs séparés, p. ex. élément extérieur à relier à un élément intérieur séparé comprenant un compresseur et un échangeur de chaleur
F24F 13/22 - Moyens pour éviter la condensation ou pour évacuer le condensat
Provided is an air conditioner controller having a high visibility of the operation state of an air conditioner and a high design quality in harmony with a surrounding environment. The controller includes a display unit; a display unit holder configured to hold the display unit; and a case including a holding member configured to support the display unit holder, and a protection member provided forward of the holding member and configured to cover an end surface of the display unit which end surface connects a front surface of the display unit to a back surface of the display unit. The display unit holder includes a rib provided along a direction where an outer periphery of the display unit extends, the rib projecting in a direction intersecting with the front surface of the display unit, and the case has a groove into which the rib is fitted.
An end plate includes a plurality of connection portions coupling the center portion and the outer peripheral portion, and a plurality of through holes formed between the connection portions. The center portion is provided with a recess portion having a discharge hole, and a fixing hole through which a fixing member for fixing a reed valve to the end plate passes. In a fan-shaped region surrounded by a first half line starting from a center of a shaft hole and passing through a center of the discharge hole, a second half line starting from the center of the shaft hole and passing through a center of the fixing hole, and an outer peripheral surface, the through hole is formed to be continuous in a circumferential direction of the fan-shaped region, and both ends of the through hole in the circumferential direction of the fan-shaped region are located outside the fan-shaped region.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
A heat pump apparatus has a lower stage circuit, a higher stage circuit, a water circuit, a user terminal, and a control device. In a case where the control device determines that frost has been formed at a heat source heat exchanger and switches a first four-way valve to start first defrosting operation, and defrosting is not achieved; the control device controls a refrigerant circuit to switch a second four-way valve and start second defrosting operation. In a case where the first defrosting operation is started, the control device controls a circulation pump and a flow regulating valve to operate the circulation pump in a state where the flow regulating valve is open so that the warm water flows into a user heat exchanger.
An air conditioner includes an outdoor machine that includes a compressor and an outdoor heat exchanger, an indoor machine that includes an indoor heat exchanger and that heats inside of a room using heat supplied from the outdoor machine, an indoor temperature sensor that detects temperature inside the room, a heat accumulation circuit that includes a heat accumulating unit and that accumulates heat, which is generated in the outdoor machine, in the heat accumulating unit, and a control unit, wherein the control unit controls the compressor in such a way that detection value obtained by the indoor temperature sensor becomes equal to the set temperature, and, when the compressor operates at minimum rotation frequency and when detection value obtained by the indoor temperature sensor exceeds the set temperature, operates the heat accumulation circuit.
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
There is provided a cascade refrigeration system that promptly performs a start-up operation and suppresses a decrease in reliability of a compressor and suppresses an increase in power consumption. The cascade refrigeration system includes: a high-side refrigerant circuit (2) having a high-side first circulation path (17) containing a high-side compressor (10), a high-side heat exchanger (11), a high-side expansion valve (12), and a cascade heat exchanger (13) where a high-side refrigerant and a low-side refrigerant exchange heat, sequentially connected; and a low-side refrigerant circuit (3) containing a low-side compressor (20), the cascade heat exchanger (13), a low-side expansion valve (21), and a heat source-side heat exchanger (22) sequentially connected, in which the high-side refrigerant circuit (2) includes: a high-side second circulation path (18) in which a discharge side and a suction side of the high-side compressor (10) are connected by a high-side bypass path (15) and through which the high-side refrigerant discharged from the high-side compressor (10) circulates to the suction side of the high-side compressor (10) through the high-side bypass path (15); and a high-side opening and closing valve (16) performing switching between the high-side first circulation path (17) and the high-side second circulation path (18).
F25B 7/00 - Machines, installations ou systèmes à compression fonctionnant en cascade, c.-à-d. avec plusieurs circuits, l'évaporateur d'un circuit refroidissant le condenseur du circuit suivant
A heat pump device includes a refrigerant circuit that includes a compressor, a water circuit, that includes a flow adjustor that adjusts a flow of the water, and a terminal that is connected to the water circuit. The heat pump device includes a first detector that detects a condensing pressure of a refrigerant of the refrigerant circuit, a second detector that detects a discharged heated-water temperature that is a temperature of the water flowing into the terminal, and a controller that executes a protection operation of adjusting the condensing pressure of the refrigerant when the condensing pressure that is detected by the first detector exceeds a pressure threshold. The controller selects, as a subject of control in the protection operation, any one of the compressor and the flow adjustor based on the discharged heated-water temperature that is detected by the second detector.
An air conditioner according to an embodiment of the present invention includes: a refrigerant circuit; a first temperature detector; a first pressure detector; and a control device. The first temperature detector detects a temperature of a refrigerant that has flowed out from an inter-refrigerant heat exchanger and introduced into an intermediate-pressure portion of a compressor. The first pressure detector detects a pressure of the refrigerant that has flowed out from the inter-refrigerant heat exchanger and introduced into the intermediate-pressure portion of the compressor. The control device controls the degree of opening of an injection control valve such that a specific enthalpy of the refrigerant calculated on the basis of a refrigerant temperature detected by the first temperature detector and a refrigerant pressure detected by the first pressure detector is a specific enthalpy target value at which the degree of dryness of the refrigerant at a merging point between the injection pipe and the intermediate-pressure portion of the compressor is one.
A three-phase motor manufacturing method is implemented to manufacture a three-phase motor in which a first serial connection section and a second serial connection section are connected in parallel. In the three-phase motor manufacturing method, a conducting wire is continuously guided in order to enable the formation of all of a plurality of winding portions of one of the three phases; and, in the process of forming the winding portions, when the winding portions are viewed from the inner periphery side of a yoke portion along a radial direction of the yoke portion, each winding portion constituting one serial connection section from among the first serial connection section and the second serial connection section is formed by winding the conducting wire in one direction, and each winding portion constituting the other serial connection section is formed by winding the conducting wire in the other direction.
H02K 15/095 - Exécution des enroulements par pose des conducteurs dans ou autour des parties formant le noyau par pose des conducteurs autour de pôles saillants
Provided are a refrigeration cycle device and a method for controlling the refrigeration cycle device that make it possible to suppress a decrease in comfort for a user even when an operation mode is switched. In the present invention, a refrigerant circuit (C) in which a refrigerant is circulated is connected with: a compressor (1) that compresses the refrigerant; an indoor heat exchanger (2) that exchanges heat between indoor air and the refrigerant; an indoor fan (21) that allows the indoor air to pass through the indoor heat exchanger (2); an outdoor heat exchanger (3) that exchanges heat between outdoor air and the refrigerant; a heat storage heat exchanger (4) that exchanges heat between a heat storage material and the refrigerant; and a plurality of switching valves (6) that each switch a circulation path of the refrigerant in the refrigerant circuit (C) according to a heating operation in which at least the indoor heat exchanger (2) functions as a condenser and a defrosting operation in which at least the outdoor heat exchanger (3) functions as a condenser. The present invention comprises a control device (7) which controls the indoor fan (21) and the switching valves (6). The control device (7) switches between the heating operation and the defrosting operation, and changes the rotational speed of the indoor fan.
F24F 11/64 - Traitement électronique utilisant des données mémorisées au préalable
F24F 11/74 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de l’apport en air traité, p. ex. commande de la pression pour la commande du débit d'air ou de la vitesse de l’air
F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
F25B 13/00 - Machines, installations ou systèmes à compression, à cycle réversible
An air conditioning system includes an outdoor unit, multiple indoor units, a control device and a server device. The server device includes a first predicting unit that predicts room temperature of an air-conditioned space, by using a plurality of operation state amounts relating to air conditioning operation; and a second predicting unit that predicts a point of time when each indoor unit out of the indoor units is switched to thermo-ON and a point of time when it is switched to thermo-OFF, by using the room temperature predicted and set temperature that is a target temperature of the air conditioning operation. The control device includes a control unit that controls driving of the compressor according to the point of time when each of the indoor unit is switched to the thermo-ON or the thermo-OFF, by using a prediction result of the second predicting unit.
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
F24F 11/50 - Aménagements de commande ou de sécurité caractérisés par des interfaces utilisateurs ou par la communication
There is provided an air conditioner with sufficient thermal insulation performance without affecting the installation property in installing an air conditioner in a casing. The air conditioner includes an indoor unit having an indoor heat exchanger, an outdoor unit having an outdoor heat exchanger connected to the indoor heat exchanger through a refrigerant pipe, and an outside casing housing at least the outdoor unit and is attached to a building wall that partitions an outdoor space and an indoor space. The outside casing is fitted in a wall communication hole and has an inside space in which the outdoor unit is capable of being disposed, the wall communication hole being formed in the building wall, the wall communication hole communicating between the outdoor space and the indoor space. The inside space is opened to the outdoor space. The outdoor unit is disposed in the inside space of the outside casing. A thermal insulation material is disposed in the inside space of the outside casing, and a space is formed between the outside casing and the thermal insulation material.
The objective of the present invention is to accumulate heat necessary for defrosting while suppressing a deterioration in the comfort level for a user when a defrosting operation is performed, and to avoid an increase in cost when both are achieved. In this refrigeration cycle device, a compressor (1), an indoor heat exchanger (2), an outdoor heat exchanger (3), a heat storage heat exchanger (4) for exchanging heat between a heat storage material and a refrigerant, a plurality of expansion valves (5) having an adjustable opening degree, and a plurality of switching valves (6) for switching a circulation path of the refrigerant in a refrigerant circuit (C) for circulating the refrigerant, between a heat storage/space heating operation and a defrosting operation, are connected to the refrigerant circuit, wherein: the refrigeration cycle device is provided with a heat storage temperature sensor (HS) for detecting the temperature of the heat storage material, and a control unit (7) for controlling the plurality of expansion valves (5); one of the plurality of expansion valves (5) is a first expansion valve (51) provided on the upstream side of the heat storage heat exchanger which functions as a condenser; and the control unit (7) controls the opening degree of the first expansion valve such that a second slope indicating an amount of increase per unit time in the temperature of the heat storage material in which heat is stored during the heat storage/space heating operation matches a preset first slope.
The operation terminal device includes a control unit, and a user interface unit including a touch panel and controlled by the control unit. The control unit has a display control function of displaying a setting screen of a plurality of setting screens on the touch panel and controlling the display such that the setting screen is switched to another setting screen in response to an operation of the user on the touch panel. The display control function includes a function of controlling such that, in a case where the setting screen is switched to the other setting screen, a selection element that is currently set among a plurality of selection elements provided on the other setting screen and selectable by the user is displayed for a predetermined time, and the other selection element is displayed in a selectable manner together with the selection element after the predetermined time has elapsed.
G06F 3/04847 - Techniques d’interaction pour la commande des valeurs des paramètres, p. ex. interaction avec des règles ou des cadrans
G06F 3/04812 - Techniques d’interaction fondées sur l’aspect ou le comportement du curseur, p. ex. sous l’influence de la présence des objets affichés
G06F 3/0485 - Défilement ou défilement panoramique
G06F 3/0488 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] utilisant des caractéristiques spécifiques fournies par le périphérique d’entrée, p. ex. des fonctions commandées par la rotation d’une souris à deux capteurs, ou par la nature du périphérique d’entrée, p. ex. des gestes en fonction de la pression exercée enregistrée par une tablette numérique utilisant un écran tactile ou une tablette numérique, p. ex. entrée de commandes par des tracés gestuels
34.
AIR CONDITIONER MANAGEMENT SYSTEM AND MANAGEMENT DEVICE
Provided is an air conditioner management system (1), wherein: a management device (10) stores software in a software frame having a frame length that is no more than three times the frame length of a fixed-length control command frame transmitted from the management device (10) to any one of a wall-mounted air conditioner (20-1), a ceiling-embedded air conditioner (20-2), or a duct-type air conditioner (20-3); the management device (10), using multicast, transmits the software frame in which the software has been stored to the wall-mounted air conditioner (20-1), the ceiling-embedded air conditioner (20-2), and the duct-type air conditioner (20-3); and an air conditioner that has completed reception of the software among the wall-mounted air conditioner (20-1), the ceiling-embedded air conditioner (20-2), and the duct-type air conditioner (20-3) operates using the software for which reception has been completed.
H04L 67/10 - Protocoles dans lesquels une application est distribuée parmi les nœuds du réseau
F24F 11/54 - Aménagements de commande ou de sécurité caractérisés par des interfaces utilisateurs ou par la communication utilisant une unité de commande centrale connectée à des sous-unités de commande
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
The objective of the present invention is to suppress a decrease in comfort for a user even if a non-azeotropic mixed refrigerant is used and an intermediate heat exchanger is provided, by ensuring a pressure difference of the non-azeotropic mixed refrigerant, in particular during startup of a compressor, to thereby perform operation suited to a required capacity. This refrigeration cycle device comprises a refrigerant circuit (C) in which a compressor (1), a condenser, a pressure reducing mechanism (3) and an evaporator are connected sequentially by means of refrigerant piping, and through which a non-azeotropic mixed refrigerant circulates, an intermediate heat exchanger (6), a bypass circuit (B) provided with a bypass valve (B1) that bypasses the intermediate heat exchanger (6), a condenser outlet temperature sensor (7), an evaporator outlet temperature sensor (8), and a control device (9), wherein the control device (9) comprises: a determining unit (93) which determines whether the condenser outlet temperature is equal to or greater than a prescribed condensation temperature value; and a drive control unit (94) that controls the bypass valve (B1) to be fully open during startup of the compressor (1), and controls the bypass valve (B1) to be fully closed if the determining unit (93) has determined that the condenser outlet temperature is equal to or greater than the prescribed condensation temperature value.
[Problem] To provide a heat exchanger which enables the detection of a bonding state in the same flow passage which cannot be detected in a laminated-type heat exchanger. [Solution] This heat exchanger is bonded by diffusion bonding, and a plurality of first metal plates and a plurality of second metal plates are alternately laminated therein. The plurality of first metal plates are provided with a first partition wall and a plurality of first protrusions. The plurality of second metal plates are provided with a second partition wall and a plurality of second protrusions. One of the plurality of first protrusions and one of the plurality of second protrusions alternately overlap in the lamination direction. In the one of the plurality of first protrusions and the one of the plurality of second protrusions, a first through-hole is formed in the first protrusion, and a second through-hole is formed in the second protrusion. The first through-hole is formed in the first partition wall of a portion where the first protrusion is provided, and the second through-hole is formed in the second partition wall of a portion where the second protrusion is provided. A first passage in which the first through-hole and the second through-hole are connected in the lamination direction is formed.
F28F 3/08 - Éléments construits pour être empilés, p. ex. pouvant être séparés pour leur nettoyage
F28D 9/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les sources de potentiel calorifique se déplaçant l'une par rapport à l'autre suivant un angle
F28F 3/00 - Éléments en forme de plaques ou de laminésEnsembles d'éléments en forme de plaques ou de laminés
F28F 3/04 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations les moyens faisant partie intégrante de l'élément
[Problem] To provide a heat exchanger in which a deviation in the flow of a refrigerant in a flow path is suppressed. [Solution] This heat exchanger is a heat exchanger in which a plurality of metal plates are laminated. At least one of the plurality of metal plates has an inflow port, an outflow port, a partition wall, and a plurality of projections protruding from the partition wall. A flow path part is formed on the partition wall by the plurality of projections. The flow path part has a first flow path part, a second flow path part, and a third flow path part between the inflow port and the outflow port. The first flow path part, the second flow path part, and the third flow path part are arranged in this order from the inflow port toward the outflow port. The flow path resistance of the second flow path part is greater than the flow path resistance of each of the first flow path part and the third flow path part.
F28F 3/08 - Éléments construits pour être empilés, p. ex. pouvant être séparés pour leur nettoyage
F28D 9/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les sources de potentiel calorifique se déplaçant l'une par rapport à l'autre suivant un angle
F28F 3/00 - Éléments en forme de plaques ou de laminésEnsembles d'éléments en forme de plaques ou de laminés
F28F 3/04 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations les moyens faisant partie intégrante de l'élément
[Object] To provide an electric motor in which a flange portion can be miniaturized in a radial direction while securing a space for fastening a metal member to the flange portion.
[Object] To provide an electric motor in which a flange portion can be miniaturized in a radial direction while securing a space for fastening a metal member to the flange portion.
[Solving Means] An electric motor according to an embodiment of the present invention includes: a rotor that includes a rotation shaft and is disposed on an inner diameter side of a stator that is integrally formed with a resin outer shell that includes an opening end portion that is provided at an end portion on one side in an axial direction, and a cylindrical portion that protrudes from a bottom portion that is provided at an end portion on the other side in the axial direction toward the other side; a lid member that covers the opening end portion and includes a first bearing housing portion, the first bearing housing portion housing a first bearing that rotatably supports the rotation shaft; a metal member that is disposed on an outer peripheral surface of the resin outer shell and electrically connects the second bearing housing portion held by the cylindrical portion; and a vibration isolating member that is attached to the cylindrical portion. The second bearing housing portion includes a flange portion, the flange portion extending from a cylinder portion in an outer diameter direction, the cylinder portion housing a second bearing that rotatably supports the rotation shaft, the cylindrical portion includes a recessed portion on an outer peripheral surface, the vibration isolating member includes a projecting portion that engages with the recessed portion, and at least part of a fastening member is located in a region overlapping with the recessed portion when viewed from the axial direction, the fastening member fastening the metal member to the flange portion.
H02K 5/24 - EnveloppesEnceintesSupports spécialement adaptés pour la réduction ou à la suppression des bruits ou vibrations
H02K 5/173 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des roulements à rouleaux, p. ex. des roulements à billes
H02K 5/18 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des nervures ou des ailettes pour améliorer la transmission de la chaleur
H02K 7/08 - Association structurelle avec des paliers
A hermetic type compressor includes a compressor main body container that is a vertical type having a cylindrical shape, an accumulator container, a compression section that is arranged inside the compressor main body container, that compresses the refrigerant, sucked from the accumulator container, and that discharges the compressed refrigerant. The accumulator container includes an accumulator shell having a cup shape and a weld portion in which an opening side of the accumulator shell is bonded to the compressor main body container. A partition member, which partitions an interior portion of the accumulator shell, is provided in the interior portion, and a thermal insulation section, which blocks a heat transfer from the compressor main body container to the accumulator container, is formed between the partition member and a bottom shell, included in the compressor main body container. A thermal insulation member is provided in the thermal insulation section.
F04C 2/344 - Machines ou pompes à piston rotatif possédant les caractéristiques couvertes par au moins deux des groupes , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants avec à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe interne
[Object] To provide an electric motor that is capable of increasing heat dissipation.
[Object] To provide an electric motor that is capable of increasing heat dissipation.
[Solving Means] An electric motor according to an embodiment of the present invention includes: a cylindrical resin outer shell that includes an opening end portion on one end in an axial direction; a stator that includes a coil and a stator core that are integrally formed with the resin outer shell; a rotor that is disposed on an inner diameter side of the stator; a lid member that is formed of a metal, the lid member including an inner surface portion, an outer surface portion, and a fin portion, the inner surface portion covering the opening end portion of the resin outer shell, the outer surface portion being opposite to the inner surface portion, the fin portion protruding from the outer surface portion in the axial direction; and a metal member that is disposed on an outer peripheral surface of the resin outer shell and is thermally connected to the outer peripheral surface of the resin outer shell and the lid member.
H02K 5/18 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des nervures ou des ailettes pour améliorer la transmission de la chaleur
H02K 5/173 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des roulements à rouleaux, p. ex. des roulements à billes
H02K 5/24 - EnveloppesEnceintesSupports spécialement adaptés pour la réduction ou à la suppression des bruits ou vibrations
H02K 7/08 - Association structurelle avec des paliers
An air conditioner includes a human detection sensor and a controller, when the human detection sensor detects that no human is present during execution of the air conditioning operation, is configured to select whether to make a switch to the second power-saving operation after the first power saving operation is performed from the air conditioning operation based on results of detection by the human detection sensor at and after a time at which it is detected that no human is present and the presence/non-presence information at and after the time at which it is detected that no human is present.
An air conditioner according to one embodiment of the present invention comprises: an outdoor unit which has a compressor and an outdoor heat exchanger; at least one relay unit which has a water-refrigerant heat exchanger for exchanging heat between a refrigerant and water and which is connected to the outdoor unit; a primary refrigerant circuit in which a primary refrigerant circulates; at least one indoor unit which is connected to the water-refrigerant heat exchanger and which has a water-heat exchanger; a circulation pump; a secondary refrigerant circuit in which a secondary refrigerant circulates; and a control device which controls the compressor. The control device executes either a room temperature control mode for controlling the rotation speed of the compressor on the basis of information on an indoor load or a water temperature control mode for controlling the rotation speed of the compressor on the basis of information on a heat load on the secondary refrigerant circuit.
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
F24F 5/00 - Systèmes ou appareils de conditionnement d'air non couverts par ou
F24F 11/64 - Traitement électronique utilisant des données mémorisées au préalable
An air conditioner includes a human detection sensor that detects whether a human is present in an air conditioning space and a presence/non-presence predictor that predicts whether a human will be present in the air conditioning space. The air conditioner further includes a controller that, using results of detection by the human detection sensor and results of prediction by the presence/non-presence predictor, makes a switch from an air conditioning operation to a power-saving operation of which power consumption is smaller than that of the air conditioning operation. As a result, it is possible to realize an appropriate power-saving operation.
A rotary compressor according to one embodiment of the present invention comprises: a compression unit that compresses a refrigerant; a motor that drives the compression unit; and a compressor body container that accommodates therein the compression unit and the motor. The compression unit comprises: a cylinder that forms a cylinder chamber therein; a piston that revolves on the inner peripheral side of the cylinder; and an end plate that closes off the end part of the cylinder. The end plate has formed therein an injection hole that communicates with the cylinder chamber and through which an injection pipe for conducting the refrigerant can be inserted. The injection pipe is fixed in the injection hole via a holding pipe for holding the outer periphery of the injection pipe.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
An air conditioner according to an embodiment of the present invention includes: a refrigerant circuit including a compressor, an outdoor heat exchanger, an indoor heat exchanger, and a pressure reducer that is disposed between the outdoor heat exchanger and the indoor heat exchanger; an outdoor fan that blows the air to the outdoor heat exchanger; an indoor fan that blows the air to the indoor heat exchanger; and a control device that sets an upper limit value of a rotational frequency of the outdoor fan in accordance with a rotational frequency of the indoor fan.
F24F 11/871 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’absorption ou la restitution de chaleur dans des éléments extérieurs en commandant des ventilateurs extérieurs
F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
An air conditioner according to an embodiment of the present invention includes: a refrigerant circuit including a compressor, an outdoor heat exchanger, an indoor heat exchanger, a pressure reducer that is disposed between the outdoor heat exchanger and the indoor heat exchanger, and a flow channel switching unit that switches a flow direction of a refrigerant discharged from the compressor; an outdoor fan that blows the air to the outdoor heat exchanger; and a control device that sets an instructed rotational frequency which is a rotational frequency for driving the outdoor fan. The control device performs processing of stopping the outdoor fan while gradually reducing the instructed rotational frequency in a case where it is determined that a predetermined defrosting start condition is satisfied during a heating operation.
F24F 11/79 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de l’apport en air traité, p. ex. commande de la pression pour la commande de la direction de l’air fourni
F24F 1/38 - Parties constitutives des ventilateurs des éléments extérieurs, p. ex. orifices d'admission évasés ou supports des ventilateurs
F24F 11/64 - Traitement électronique utilisant des données mémorisées au préalable
There is provided an air conditioner with sufficient thermal insulation performance without affecting the installation property in installing an air conditioner in a casing. The air conditioner includes an indoor unit having an indoor heat exchanger, an outdoor unit having an outdoor heat exchanger connected to the indoor heat exchanger through a refrigerant pipe, and an outside casing housing at least the outdoor unit and is attached to a building wall that partitions an outdoor space and an indoor space. The outside casing is fitted in a wall communication hole and has an inside space in which the outdoor unit is capable of being disposed, the wall communication hole being formed in the building wall and communicating between the outdoor space and the indoor space. The inside space is opened to the outdoor space. The outdoor unit is disposed in the inside space of the outside casing. A thermal insulation material is disposed in the inside space of the outside casing, and the thermal insulation material at least includes a first thermal insulation portion that is disposed on a side of the outdoor space and a second thermal insulation portion that is disposed on a side of the indoor space and is attachable and detachable.
An air conditioner includes an outdoor unit, an indoor unit and a refrigerant circuit. The conditioner performs heating operation in which an indoor heat exchanger functions as a condenser for a refrigerant that is compressed by a compressor and an outdoor heat exchanger functions as an evaporator for a refrigerant that is condensed by the indoor heat exchanger. The conditioner includes a memory, and processing circuitry configured to estimate an amount of refrigerant that remains in the circuit by using an operating state quantity of the conditioner in the heating operation. The estimating includes a plurality of different estimation models that correspond to ranges of the amount of refrigerant that remains in the circuit. One of the estimation models uses, as the operating state quantity, a degree of supercooling of refrigerant at an outlet of the indoor heat exchanger.
44N is formed on the nitride diffusion layer (212) in addition to the substrate layer (211) and the nitride diffusion layer (212). The hard film (220) is formed on a surface of either the nitride diffusion layer (212) or the dense layer (213) of the base material (210).
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/18 - Alliages ferreux, p. ex. aciers alliés contenant du chrome
C23C 8/26 - Nitruration de la couche superficielle de matériaux ferreux
C23C 8/38 - Traitement de la couche superficielle de matériaux ferreux
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
In the present invention, a vane (127) is used in a compressor comprising a cylinder (121T), a piston (125T) revolving along the inner peripheral surface of the cylinder (121T), and an end plate (160T) that closes off the end of the cylinder (121T). A cylinder chamber surrounded by the cylinder (121T), the piston (125T), and the end plate (160T) is divided into a suction chamber (131T) and a compression chamber (133T). The vane (127) comprises a nitrided parent material (210) and a hard film (220) that covers the tip surface (129a) of the parent material (210), the hard film (220) being formed by sputtering.
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/18 - Alliages ferreux, p. ex. aciers alliés contenant du chrome
C23C 8/26 - Nitruration de la couche superficielle de matériaux ferreux
C23C 28/00 - Revêtement pour obtenir au moins deux couches superposées, soit par des procédés non prévus dans un seul des groupes principaux , soit par des combinaisons de procédés prévus dans les sous-classes et
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
An electric motor in which the number of pole pairs of magnetic pole parts is m, the number of a plurality of teeth is 3m, and a rotor core has non-magnetic parts continuing from each of two end parts of a permanent magnet. Each magnetic pole part has a magnetic pole outer peripheral surface formed on an outer peripheral surface between a first boundary line and a second boundary line that pass through a rotation center (O) of a rotor and an outer peripheral end of each non-magnetic part in the radial direction of the rotor core. The magnetic pole outer peripheral surface has a front-side outer peripheral surface (29-F) positioned on the front side in the rotation direction (R) of the rotor relative to a d-axis, and a rear-side outer peripheral surface (29-R) positioned on the rear side in the rotation direction (R) relative to the d-axis. When the magnetic pole part is virtually folded back along the d-axis in the plane, and the front-side outer peripheral surface (29-F) is overlapped on the rear-side outer peripheral surface (29-R), the front-side outer peripheral surface (29-F) has a small-diameter outer peripheral surface (34) positioned further inward than the rear-side outer peripheral surface (29-R) in the radial direction.
In a refrigeration cycle device according to an embodiment of the present invention, a first refrigerant circulates in a low-order refrigerant circuit. A second refrigerant that exchanges heat with the first refrigerant in a cascade heat exchanger circulates in a high-order refrigerant circuit. A water circuit has a second indoor heat exchanger and a water-refrigerant heat exchanger, and water that exchanges heat with the second refrigerant in the water-refrigerant heat exchanger circulates in the water circuit. A heat radiation device is connected to at least one of the high-order refrigerant circuit and the water circuit, and is connected such that the second refrigerant or water can be bypassed by a bypass flow path. During a heating operation by an indoor unit of the second indoor heat exchanger, a control device switches between a first heating operation in which the second refrigerant or water flows only to the bypass flow path, and a second heating operation in which the second refrigerant or water flows to both the heat radiation device and the bypass flow path, and in the second heating operation, the control device determines a rotational speed of a second compressor on the basis of a required capacity of the indoor unit of the second indoor heat exchanger and the heat radiation device.
F25B 7/00 - Machines, installations ou systèmes à compression fonctionnant en cascade, c.-à-d. avec plusieurs circuits, l'évaporateur d'un circuit refroidissant le condenseur du circuit suivant
F24D 3/18 - Systèmes de chauffage central à eau chaude utilisant des pompes à chaleur
F24F 5/00 - Systèmes ou appareils de conditionnement d'air non couverts par ou
Provided are an outdoor unit and an air conditioner comprising said outdoor unit, which can suppress the occurrence of dissimilar metal contact corrosion by preventing contact between a heat exchanger and a bottom plate that is due to mispositioning of a spacer. The present invention is provided with: a heat exchanger (13) that is formed from a metal; a bottom plate (41) that is formed from a metal differing from that of the heat exchanger (13); and a spacer (50) that is positioned between the heat exchanger (13) and the bottom plate (41), and is formed from an insulating material, wherein the bottom plate (41) has an anchoring section (60) to which the spacer (50) is anchored, the spacer (50) has an attachment section (52) that clamps the anchoring section (60), and at the time of positioning the spacer (50) on the bottom plate (41), movement of the spacer (50) on the bottom plate (41) toward the side of the space in which the heat exchanger (13) is accommodated is restricted by the attachment section (52) being attached to the anchoring section (60).
[Problem] To provide an electric motor in which heat generated from a circuit board can be stably dissipated. [Solution] An electric motor according to one embodiment of the present invention comprises: a resin outer shell that has an opening end on one end side in the axial direction; a stator; a rotor; a metal heat sink that covers the opening end; and a circuit board that is disposed in the internal space surrounded by the resin outer shell and the heat sink and has an electronic component. The heat sink has a disk part and a protruding part protruding from the disk part toward the electronic component. The disk part has a plurality of through-holes into which fastening members for fastening the heat sink and the resin outer shell are inserted. The plurality of through-holes are arranged along the circumferential direction of the disk part. The protruding part has a flat tip surface that makes thermal contact with the electronic component. The tip surface has a first region facing the electronic component and a second region not facing the electronic component when viewed from the axial direction. The second region is adjacent to at least one side of the first region in the circumferential direction of the disk part.
H02K 5/18 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des nervures ou des ailettes pour améliorer la transmission de la chaleur
H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
In this electric motor, the number of pole pairs of magnetic pole sections (11) is m, the number of tooth sections is 3m, and a rotor core has non-magnetic sections extending from both ends of a permanent magnet. In a plane orthogonal to the rotation center line of a rotor, when a rotor core outer peripheral surface within a range forming one pole pair is defined as a one pole pair outer peripheral surface such that the shape of the outer peripheral surface of the rotor core is rotationally symmetric with respect to the rotation center (O) of the rotor, the outer peripheral surface of the rotor core is formed by repeating the shape of the one pole pair outer peripheral surface m times in the circumferential direction of the rotor core . Each magnetic pole section (11) has a magnetic pole outer peripheral surface formed on the outer peripheral surface of the rotor core between a first boundary line and a second boundary line which pass through the rotation center (O) and the outer peripheral end of the rotor core of each non-magnetic section in the radial direction. Each pole pair has an N-pole magnetic pole section (11N) and an S-pole magnetic pole section (11S) which are disposed on mutually opposite sides of a q-axis (Q). In the plane, when one of the N-pole magnetic pole section (11N) and the S-pole magnetic pole section (11S) is virtually rotated around the rotation center (O) by 360/(2m) [degrees] and superposed on the other, the magnetic pole outer peripheral surface (29N) of the N-pole magnetic pole section (11N) and the magnetic pole outer peripheral surface (29S) of the S-pole magnetic pole section (11S) are formed so as not to coincide with each other in shape.
This refrigeration cycle device comprises a refrigerant circuit (9) in which a compressor (4), a usage-side heat exchanger (6) functioning as a condenser, an expansion valve (7), and a heat source side heat exchanger (8) functioning as an evaporator are connected by piping, a discharge superheat degree calculating means (26) for calculating a discharge superheat degree of a refrigerant, a heating means (11) for heating the compressor, and a control means (25) for controlling an opening degree of the expansion valve, the compressor, and the heating means, wherein the control means heats the compressor by means of the heating means when the discharge superheat degree is less than a predetermined discharge superheat degree lower limit value and the opening degree of the expansion valve is equal to or less than a predetermined opening degree.
According to the present invention, frost formation on an outdoor heat exchanger is suppressed, and a reduction in amount of heat exchange in the outdoor heat exchanger is suppressed, even when the outdoor heat exchanger is used as an evaporator by employing a non-azeotropic mixed refrigerant having a temperature gradient. This refrigeration cycle device is provided with a refrigerant circuit (C) in which a compressor (1), an indoor heat exchanger (2), a pressure reducing mechanism (3) and an outdoor heat exchanger (4) are sequentially connected by refrigerant piping and in which a non-azeotropic mixed refrigerant circulates, wherein: the outdoor heat exchanger (4) comprises a plurality of rows of heat transfer tubes (4a) arranged along a flow direction of air, and a plurality of fins (4b) arranged so as to be orthogonal to a longitudinal direction of the heat transfer tubes (4a); a refrigerant path (R) of the outdoor heat exchanger (4) consisting of the heat transfer tubes (4a) comprises a first flow passage (R1) on an inlet side, a third flow passage (R3) on an outlet side, and a second flow passage (R2) joining the first flow passage (R1) and the third flow passage (R3) and having a greater number of paths than the third flow passage (R3); and the first flow passage (R1) and the third flow passage (R3) are adjacent to one other in a row direction.
A refrigeration cycle device according to one embodiment of the present invention comprises: a heat storage circuit including a bypass flow path that connects the discharge side of a compressor to refrigerant piping between an outdoor heat exchanger and a main expansion valve, an auxiliary heat exchanger that is positioned in the bypass flow path and has a heat storage material capable of exchanging heat with some of the refrigerant discharged from the compressor, a first bypass expansion valve that is positioned in the bypass flow path between the compressor and the auxiliary heat exchanger, and a second bypass expansion valve that is positioned in the bypass flow path between the auxiliary heat exchanger and the refrigerant piping; and a control unit that controls the opening degree of the first bypass expansion valve on the basis of the rate of change of a detection value from a pressure sensor for detecting the pressure of the refrigerant on the discharge side of the compressor in a heat storage heating operation mode.
A motor control device (100a) has: a synchronous operation mode in which a motor M is controlled such that the rotational speed of the motor coincides with a speed command value to cause the motor to be synchronized with a rotational phase obtained by integrating the speed command value; and a position sensorless control mode in which the motor M is controlled such that a speed estimation value, obtained by feedback-controlling the axial error between a control system coordinate axis and a rotor coordinate axis, coincides with the speed command value. In the motor control device: a synchronous operation current command value generator (13) generates a current command value in the synchronous operation mode; a current controller (20), a non-interference controller (36), and an adder (21) generate a voltage command value such that a current flowing through the motor M coincides with the current command value; and a lock determination instrument (52) determines whether or not the motor M is locked on the basis of the voltage command value.
An electrical component module (6) comprising: a first substrate (11) having a first power supply circuit (14); a second substrate (12) having a second power supply circuit (17); a first power supply cable (26) that supplies electric power to the first power supply circuit; a second power supply cable (27) that supplies electric power to the second power supply circuit; a communication cable (28) that is connected to the second substrate; a fixing member (21) to which the first substrate is fixed; and an electroconductive partition member (22) disposed on the fixing member side by side with the first substrate, the partition member partitioning a space into a lower-step part (23L) positioned between the partition member and the fixing member and an upper-step part (23U) positioned on the side of the partition member opposite from the side where the lower-step part is positioned so as to form a two-step structure that includes the lower-step part and the upper-step part. The second substrate is disposed on one step part from among the upper-step part and the lower-step part, the first power supply cable is connected to the first power supply circuit through the other step part, and the second power supply cable is connected to the second power supply circuit through the other step part. The communication cable is connected to the second substrate through the other step part.
[Problem] To provide an indoor unit of an air conditioner, the indoor unit being capable of preventing the spread of fire from an electrical equipment box. [Solution] An indoor unit of an air conditioner according to one embodiment of the present invention comprises an electrical equipment box that has a body and a lid, and that accommodates electrical components. The electrical equipment box is composed of the lid, and the body into which the lid is fitted. In the electrical equipment box, a first fire spread prevention member formed by a first noncombustible material having flexibility is provided at a joint that is formed when the body and the lid part are combined, or at a portion close to the joint.
Provided is a refrigeration cycle device including: an aluminum refrigerant pipe (22) which is made of aluminum or an aluminum alloy, is connected to an end (18a) of a tube provided inside a heat exchanger (11) and protrudes outside the heat exchanger; a copper refrigerant pipe (23) which is made of copper or a copper alloy and is connected to a control component such as a four-way valve or an expansion valve; and a joint (24) where the aluminum refrigerant pipe is joined to the copper refrigerant pipe. The joint is disposed along the vertical direction perpendicular to the bottom surface (3) of the heat exchanger. The aluminum refrigerant pipe is disposed above the joint. The copper refrigerant pipe, which is disposed below the joint, includes a copper linear portion (27) that extends linearly downward from the joint in a length equal to or greater than the outer diameter of the copper refrigerant pipe.
F24F 1/0068 - Éléments intérieurs, p. ex. ventilo-convecteurs caractérisés par la disposition des conduites réfrigérantes hors de l’échangeur de chaleur dans l’enveloppe de l’élément
F24F 1/30 - Conduites réfrigérantes pour une utilisation à l'intérieur des éléments extérieurs séparés
A hermetic type compressor includes: a compressor main-body container that has a vertically cylindrical shape, and that has a discharge pipe and a suction pipe for a refrigerant; an accumulator container that is connected to the suction pipe; a compression section that is disposed in the compressor main-body container, that compresses the refrigerant sucked from the accumulator container via the suction pipe, and that discharges the compressed refrigerant from the discharge pipe; and a motor that is disposed inside the compressor main-body container, and that drives the compression section. In the hermetic type compressor, the accumulator container includes a cup shape accumulator shell that has the opening side thereof bonded to the compressor main-body container. The hermetic type compressor further includes: a leg member that is fixed to the outer periphery of the compressor main-body container housing, and that supports the compressor main-body container and the accumulator container; and an elastic body that supports the leg member.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
When an outside air temperature (To) is equal to or lower than a prescribed temperature (Tos), at least one of water temperatures (Twi) of first to third indoor terminals (4i(i=a- c)) of which operations are stopped is equal to or lower than a prescribed water temperature (Tw2), or the room temperatures (Tki) of first to third rooms (3i) are equal to or lower than a prescribed room temperature (Tks), an indoor on-off valve (12i) of the corresponding indoor terminal (4i) is permitted to perform an opening operation.
A casing (110) comprises a spiral part in which the distance between a rotation axis and an inner peripheral surface facing an outer periphery of an impeller increases from a winding start (P) toward a winding end. The spiral part comprises an outer peripheral plate part (130) covering the outer peripheral side of the impeller, and a side plate part (120) having a suction port (121) in a central portion. The suction port (121) comprises a bell mouth (122) having an inner diameter that decreases toward the inside in the axis direction. An annular protruding part (140) that extends in the rotation axis direction from the side plate part (120) is provided spaced apart from the bell mouth (122) on a radially outside of the bell mouth (122). The annular protruding part (140) is concentric with the bell mouth (122), is lower in height than the bell mouth (122), and forms, between the annular protruding part (140) and the bell mouth (122), a space (S) into which air flows.
[Problem] To enable soundproofing countermeasures while inhibiting an increase in the size of a housing. [Solution] This outdoor unit for an air conditioner has a housing, and a heat exchanger, a fan, and a compressor provided inside the housing. The inside of the housing is divided by a partition plate into a heat exchange chamber in which the heat exchanger and the fan are disposed, and a machine chamber in which the compressor is disposed. The housing has a top plate, a bottom plate facing the top plate, and side plates provided between the top plate and the bottom plate. The side plates include a machine chamber side plate disposed on the machine chamber side, and a heat exchange chamber side plate disposed on the heat exchange chamber side, and the plate thickness of the machine chamber side plate is greater than the plate thickness of the heat exchange chamber side plate.
This outdoor unit for an air conditioner comprises: at least two each of a first control board and a second control board; a terminal 26 to which a primary-side wiring 55 introduced from outside and secondary-side wirings 56, 57 each connected to the first control board and the second control board are connected; and a housing for accommodating the first control board, the second control board, and the terminal. The terminal 26 comprises secondary-side wiring connecting parts 82 including secondary-side contacts 82A, 82B to which insertion contacts 92 provided at ends of the secondary-side wirings 56, 57 can be connected, respectively, and which are aligned from the front side to the back side. The secondary-side wirings 57 connected to the secondary-side contacts 82B, which are not on the frontmost side, are connected, at the other ends thereof, to the second control board via attachable/detachable connectors.
[Problem] To suppress an increase in the size of an outdoor unit. [Solution] This outdoor unit of a heat pump cycle device includes a housing having a top plate, a bottom plate, and a side plate provided between the top plate and the bottom plate. An interior of the housing is divided by a partitioning plate into: a machine chamber that accommodates a water-refrigerant heat exchanger in which a refrigerant and water exchange heat, a compressor, and an accumulator; and a heat exchange chamber that accommodates an air-refrigerant heat exchanger in which the refrigerant and air exchange heat, and a blower. As seen from the top plate toward the bottom plate, if the machine chamber is divided into a first section and a second section, in order from the partitioning plate side, the compressor and the accumulator are disposed in the first section, and the water-refrigerant heat exchanger is disposed in the second section.
According to the present invention, a deterioration in comfort level for a user when a defrosting operation of an outdoor heat exchanger is performed is suppressed, and also a deterioration in defrosting capability is avoided. When starting a defrosting operation, if a control unit (7) determines that the temperature of a heat storage material acquired from a heat storage temperature sensor (HS) is equal to or less than a preset first threshold, the control unit (7) performs control for executing a reverse defrosting operation for defrosting an outdoor heat exchanger (3) by controlling a plurality of switching valves (6) such that a third pressure reducing mechanism (53) is set to a closed state, the outdoor heat exchanger (3) functions as a condenser and an indoor heat exchanger (2) functions as an evaporator; and if the control unit (7) determines that the temperature of the heat storage material is higher than the first threshold, the control unit (7) performs control to execute an indoor heat exchange bypass defrosting operation for defrosting the outdoor heat exchanger (3) by controlling the plurality of switching valves (6) such that a first pressure reducing mechanism (51) is set to a closed state, the outdoor heat exchanger (3) functions as a condenser and a heat storage heat exchanger (4) functions as an evaporator.
A hermetic type compressor includes a compressor main body container that is a vertical type having a cylindrical shape, an accumulator container, a compression section that is arranged inside the compressor main body container, that compresses the refrigerant, which has been sucked from the accumulator container, and that discharges the compressed refrigerant. The accumulator container includes an accumulator shell having a cup shape, and in which an opening side of the accumulator shell is bonded to the compressor main body container. A partition member, which partitions an interior portion of the accumulator shell, is provided in the interior portion, and a thermal insulation section, which includes an interior portion space having a hollow structure that blocks a heat transfer from the compressor main body container to the accumulator container, is formed between the partition member and a bottom shell that is included in the compressor main body container.
A compressor according to an embodiment of the present invention comprises a compressor housing for accommodating a compression unit whereby a refrigerant is compressed, an accumulator housing connected with an intake section of the compression unit, and a holder member connecting the compressor housing and the accumulator housing. The holder member includes: a housing-facing section having a first surface that is formed along the outer peripheral surface of the compressor housing and is in contact with the outer peripheral surface; an arm section that bends from along the outer peripheral surface toward the accumulator housing side, is formed so as to extend from the housing-facing section, is in contact with the accumulator housing, and supports the accumulator housing; and a joint section whereby the holder member and the compressor housing are joined. At least part of a second surface that is a side surface in the arm section on the compressor housing side in the location at which said arm section bends from along the outer peripheral surface toward the accumulator housing side is included in the joint section.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
A heat pump device according to one embodiment of the present invention is provided with: a compressor; a use-side heat exchanger that exchanges heat between water and a refrigerant; an electronic expansion valve; a heat source-side heat exchanger; and a control means that controls a rotational speed of the compressor and an opening degree of the electronic expansion valve. The control means: controls the electronic expansion valve on the basis of predetermined discharge upper limit temperature and discharge lower limit temperature; sets the discharge upper limit temperature according to the magnitude of a load of the compressor; when a discharge temperature is less than the discharge lower limit temperature, decreases the opening degree of the electronic expansion valve so that the discharge temperature becomes more than or equal to the discharge lower limit temperature; when the discharge temperature is more than or equal to the discharge upper limit temperature, increases the opening degree of the electronic expansion valve so that the discharge temperature becomes less than the discharge upper limit temperature; and when the discharge temperature is more than or equal to the discharge lower limit temperature and less than the discharge upper limit temperature, controls the opening degree of the electronic expansion valve so that a subcool value becomes a target subcool value.
Provided are: a hot-discharged-water temperature control means that controls a flow-path switching means (6) such that a water refrigerant heat exchanger (7) functions as a condenser, and drives a compressor (5) such that a hot-discharged-water temperature (h1) becomes a target hot-discharged-water temperature that is set according to a heating operation load when a heating operation is to be implemented by a high-temperature heating terminal (3) and/or a low-temperature heating terminal (4); and a defrosting operation control means that controls the flow-path switching means such that an outdoor heat exchanger (9) functions as a condenser, and drives the compressor to carry out a defrosting operation of the outdoor heat exchanger. Moreover, when a decrease amount (Δh1) per unit time of the target hot-discharged-water temperature has reached a threshold value or higher, the defrosting operation control means begins a defrosting operation in a state in which the hot-discharged-water temperature is higher than the target hot-discharged-water temperature.
F24D 3/18 - Systèmes de chauffage central à eau chaude utilisant des pompes à chaleur
F24H 15/219 - Température de l’eau après chauffage
F24H 15/232 - Température du frigorigène dans les cycles de pompe à chaleur au niveau du condensateur
F24H 15/269 - Données temporelles, p. ex. heure ou date
F24H 15/296 - Informations provenant de dispositifs voisins
F24H 15/38 - Commande de compresseurs de pompes à chaleur
F24H 15/39 - Commande de vannes pour la distribution de frigorigène à différents évaporateurs ou condensateurs dans des pompes à chaleur
F24H 15/421 - Commande des appareils de chauffage de fluides caractérisée par le type des unités de commande utilisant un traitement électronique, p. ex. par ordinateur utilisant des données préenregistrées
F24H 15/486 - Commande des appareils de chauffage de fluides caractérisée par le type des unités de commande utilisant des minuteurs
Provided are a heat exchanger and an air conditioner that make it possible to appropriately set the positional relationship between headers which are arranged at respective one-end sides of a plurality of heat exchange units in the heat exchanger. The heat exchanger comprises a plurality of heat exchange units (20) having a plurality of heat transfer pipes (26) which are arranged at multiple stages in the stage direction and which each have a refrigerant passage formed thereinside. Each of the heat exchange units (20) has first headers (23), (24) to which one ends of the heat transfer pipes (26) arranged in the stage direction are connected, and the first headers (23), (24) are arranged adjacent to each other perpendicularly to the stage direction. Each of the heat exchange units has fitting members (31), (32) fitted to the upper ends and/or the lower ends of the first headers (23), (24) arranged adjacent to each other.
F28D 1/047 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide avec canalisations tubulaires les canalisations étant courbées, p. ex. en serpentin ou en zigzag
F28F 9/26 - Dispositions pour raccorder des sections différentes des éléments d'échangeurs de chaleur, p. ex. de radiateur
78.
Display screen with transitional graphical user interface
A compressor main body container includes a main shell having a vertical cylindrical shape, a top shell having a cup shape, and a bottom shell having a cup shape, and an interior portion of the main shell is hermetically sealed by securing an opening side of the top shell to an upper end portion of the main shell at a first welded portion by welding, and securing an opening side of the bottom shell to a lower end portion of the main shell at a second welded portion by welding. The accumulator container includes an accumulator shell having a cup shape, and an interior portion of the accumulator shell is hermetically sealed by securing an opening side of the accumulator shell to an opposite opening side of the bottom shell at a third welded portion by welding at a position lower than a position of the second welded portion in the compressor main body container.
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
A fan includes a multi wing fan and a mechanism configured to rotate the multi wing fan around a rotation axis, wherein the multi wing fan includes two impellers lined in an axial direction is parallel to the rotation axis, and a partition plate arranged along a plane perpendicular to the rotation axis, the partition plate includes a body part that separates the two impellers, and an outer circumferential part that surrounds an outer circumferential side of the body part, the outer circumferential part gets thinner toward an outer circumferential edge of the partition plate, the outer circumferential edge includes a first outer circumferential edge part, and a second outer circumferential edge part different from the first outer circumferential edge part, and a position of the first outer circumferential edge part in the axial direction is different from a position of the second outer circumferential edge part in the axial direction.
F24F 1/0025 - Ventilateurs tangentiels ou à flux transversal
F04D 17/04 - Pompes à flux radial spécialement adaptées aux fluides compressibles, p. ex. pompes centrifugesPompes hélicocentrifuges spécialement adaptées aux fluides compressibles ayant des étages non centrifuges, p. ex. centripètes du type à flux transversal
F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
There is provided an air conditioner with a refrigerant sensor installed in a room, which can reduce the amount of refrigerant leakage while limiting the installation cost of a shut-off valve. The air conditioner includes a liquid-side shut-off valve connected between an outdoor heat exchanger and an indoor unit-side expansion valve, a gas-side shut-off valve connected between an indoor heat exchanger and a compressor, a bypass passage in which one end is connected between the liquid-side shut-off valve and the indoor unit-side expansion valve and the other end is connected between the gas-side shut-off valve and the compressor, and a bypass solenoid valve configured to open and close the bypass passage.
F24F 11/36 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques aux fuites de fluides échangeurs de chaleur
F24F 11/84 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
F25B 49/00 - Disposition ou montage des dispositifs de commande ou de sécurité
According to the present invention, it is made possible to easily attach and detach a base heater while also securely fixing the base heater to a bottom plate. The present invention comprises a housing (2), a base heater (BH) that is between a heat exchanger unit (4) disposed on the side of a back surface plate of the housing (2) and a base (B) of the housing (2) and that is fixed to the base (B), and a fixing implement (8) that fixes the base heater (BH) to the base (B). The fixing implement (8) comprises: a two-way fixing implement (81) that, if a lower side portion (BH1) is defined as the side among the periphery of the base heater (BH) which touches the base (B), touches an upper side portion (BH2) which is on the opposite side from the lower side portion (BH1), and an inner side portion (BH4), among a portion connecting the lower side portion (BH1) and the upper side portion (BH2), which is on the side of the back surface plate, and that fixes the base heater (BH) to the base (B); and a three-way fixing implement (82) that touches a portion other than the lower side portion (BH1) and that fixes the base heater (BH) to the base (B).
[Problem] To provide a heat exchanger which can be produced with little increase in cost and which has improved heat transfer characteristics. [Solution] A heat exchanger according to one embodiment of the present invention is configured of a plurality of stacked heat transfer plates. The plurality of stacked heat transfer plates comprise first heat transfer plates and second heat transfer plates, the first heat transfer plates and the second heat transfer plates having been stacked alternately. The first heat transfer plates each have a first channel formed therein, and the second heat transfer plates each have a second channel formed therein. The cross-sectional area of the second channel is smaller than that of the first channel.
F28F 3/00 - Éléments en forme de plaques ou de laminésEnsembles d'éléments en forme de plaques ou de laminés
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
F28F 3/04 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations les moyens faisant partie intégrante de l'élément
F28F 3/08 - Éléments construits pour être empilés, p. ex. pouvant être séparés pour leur nettoyage
An air conditioner (1) includes: a plurality of switching valves (22) that switch a circulation path of a refrigerant in a refrigeration circuit (6) between stored heat heating operation in which an indoor heat exchanger (6) and a stored heat heat exchanger (8) are caused to function as condensers, and an outdoor heat exchanger (7) is caused to function as an evaporator, and defrost heating operation in which the indoor heat exchanger (6) and the outdoor heat exchanger (7) are caused to function as condensers, and the stored heat heat exchanger (8) is caused to function as an evaporator; a first flow path (11) that connects the indoor heat exchanger (6) and the outdoor heat exchanger (7); a second flow path (12) that connects the stored heat heat exchanger (8) and a branch section (14) along the first flow path (11); a first expansion valve (15) that adjusts a flowrate of the refrigerant flowing in a section, of the first flow path (11), between the indoor heat exchanger (6) and the branch section (14); and a second expansion valve (16) that depressurizes the refrigerant passing between the indoor heat exchanger (6) and the first expansion valve (15) of the first flow path (11).
An air conditioning device includes a tangential fan, a columnar support, a heat exchanger that is disposed between the columnar support and the tangential fan, and a mechanism configured to rotate the tangential fan around a rotation axis and cause air to pass through the heat exchanger, wherein at least some part of the columnar support is placed along a straight line that is inclined with respect to the rotation axis.
F24F 1/0063 - Éléments intérieurs, p. ex. ventilo-convecteurs caractérisés par des échangeurs de chaleur par le montage ou la disposition des échangeurs de chaleur
F24F 1/0025 - Ventilateurs tangentiels ou à flux transversal
F24F 1/0073 - Éléments intérieurs, p. ex. ventilo-convecteurs comportant des moyens de purification de l’air fourni caractérisés par le montage ou la disposition de filtres
This cooling and heating device comprises: a pump (8) that circulates a heat medium in a heat medium circuit (4); a plurality of indoor heat exchangers (7-1 to 7-3); a plurality of flow rate adjustment valves (6-1 to 6-3) and a plurality of heat medium temperature detection units (26-1 to 26-3) respectively provided for the plurality of indoor heat exchangers (7-1 to 7-3); a heat source machine (5) that adjusts the temperature of the heat medium; and a control unit (28) that controls the pump (8) such that the heat medium which is at a prescribed flow rate circulates through the heat medium circuit (4), and controls the plurality of flow rate adjustment valves (6-1 to 6-3) such that the flow rate of the heat medium flowing through a maximum heat load indoor heat exchanger becomes equal to a maximum heat load target flow rate calculated on the basis of the heat load of the maximum heat load indoor heat exchanger in which the heat load is at the maximum level, and such that the flow rate of the heat medium flowing through a residual heat load indoor heat exchanger becomes equal to a residual heat load target flow rate calculated on the basis of the heat load of the residual heat load indoor heat exchanger, which is different from the maximum heat load indoor heat exchanger, and the temperature of the heat medium flowing into the maximum heat load indoor heat exchanger.
F24F 11/84 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
F24F 11/85 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de pompes à débit variable
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
F25B 13/00 - Machines, installations ou systèmes à compression, à cycle réversible
F24F 140/20 - Température du fluide échangeur de chaleur
87.
AIR CONDITIONING SYSTEM, REFRIGERANT AMOUNT ESTIMATION METHOD FOR AIR CONDITIONING SYSTEM, AIR CONDITIONER, AND REFRIGERANT AMOUNT ESTIMATION METHOD FOR AIR CONDITIONER
An air conditioning system includes an air conditioner that includes a refrigerant circuit that is constituted to have a structure in which indoor unit is connected to an outdoor unit and a predetermined amount of refrigerant is filled, and a server. The conditioner includes a first processor detect a quantity related to control of the conditioner, acquire the detected value, and transmit the acquired value to the server. The server includes a second processor receive the value from the conditioner, estimate a remaining refrigerant amount of the refrigerant remaining in the circuit by using a value of a feature value in a case where a state quantity related to an amount of the refrigerant that is filled in the circuit is indicated by the feature value, and determine whether the value of the feature value is detection value that is to be used to estimate the remaining refrigerant amount.
An air conditioner according to one embodiment of the present invention comprises: an outdoor unit including a plurality of outdoor heat exchangers and an outdoor fan that blows air to the plurality of outdoor heat exchangers; at least one indoor unit connected to the outdoor unit by refrigerant piping; and a control device that controls the rotation speed of the outdoor fan. When the number of outdoor heat exchangers in use is increased, the control device determines the rotation speed of the outdoor fan so that the amount of heat exchanged in the outdoor heat exchangers after the number thereof is increased is equal to or less than the amount of heat exchanged in the outdoor heat exchanger before the number thereof is increased, and when the number of outdoor heat exchangers in use is decreased, the control device determines the rotation speed of the outdoor fan so that the amount of heat exchanged in the outdoor heat exchangers after the number thereof is decreased is equal to or larger than the amount of heat exchanged in the outdoor heat exchanger before the number thereof is decreased.
F24F 11/74 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de l’apport en air traité, p. ex. commande de la pression pour la commande du débit d'air ou de la vitesse de l’air
F24F 11/64 - Traitement électronique utilisant des données mémorisées au préalable
F24F 140/00 - Entrées de commandes relatives aux états du système
89.
HEAT EXCHANGER AND OUTDOOR UNIT COMPRISING SAID HEAT EXCHANGER
There is provided a heat exchanger capable of suppressing a decrease in the amount of heat exchange due to the nonuniform air velocity distribution. The heat exchanger includes a plurality of rooms partitioned by partition plates inside the inlet header, a plurality of flat tubes connected to each room and a plurality of branch pipes connected to each room and the distributor, in which depending on an air velocity distribution, the number of the branch portions of the branch pipe connected to the room, to which the flat tubes located in a part having a high air velocity are connected, is less than the number of the branch portions of the branch pipe connected to the room, to which the flat tubes passing through a part having a low air velocity, are connected.
F28F 1/02 - Éléments tubulaires de section transversale non circulaire
F28D 1/053 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide avec canalisations tubulaires les canalisations étant rectilignes
90.
Air conditioning system, abnormality estimation method for air conditioning system, air conditioner, and abnormality estimation method for air conditioner
An air conditioner includes a refrigerant circuit in which indoor units are connected to an outdoor unit. The conditioner includes a processor to detect a state quantity related to control on the air conditioner, acquire a detected value of the detected quantity and estimate occurrence of abnormality of the circuit by using a detected value of a feature value by assuming that the quantity related to abnormality of the circuit is adopted as the feature value. The estimating adopts the outdoor unit and each of the indoor units as a single pair, estimates occurrence of abnormality in the circuit for each of the pairs, estimates that abnormality has occurred in the indoor unit of a subject pair when estimating that abnormality has occurred in any of the pair, and estimates that abnormality has occurred in the outdoor unit when estimating that abnormality has occurred in all of the pairs.
F24F 11/32 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques
A three-phase electric motor includes a stator iron core, an insulator, and a plurality of coils. The coils are wound around teeth of the stator iron core and a winding body of the insulator. Among the plurality of coils, coils in the same phase are connected by series connection and are formed by one lead wire including connecting wires. A plurality of slits for allowing the connecting wires to pass are formed in the insulator. A deepest slit having the largest depth among the plurality of slits is provided such that at least a part of the deepest slit is located further on an outer side in a circumferential direction than an extension region obtained by virtually extending a corresponding deep groove-winding body, around which a corresponding deep groove-coil from which the connecting wires passing through the deepest slit are drawn is wound, to an outer diameter side.
H02K 3/34 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement entre conducteurs ou entre conducteur et noyau, p. ex. isolement d'encoches
H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
A blower includes a cross flow fan, a mechanism configured to rotate the cross flow fan about a rotation axis, a front tongue part that is arranged in front of the cross flow fan, and a back tongue part that is arranged in back of the cross flow fan, wherein a front fan facing surface of the front tongue part faces the cross flow fan, and includes a plurality of front non-flat portions on which non-flatness is formed, and a plurality of front flat portions on which no non-flatness formed, a back fan facing surface of the back tongue part faces the cross flow fan, and includes a plurality of back non-flat portions on which non-flatness formed, and a plurality of back flat portions on which no non-flatness is formed, and the back non-flat portions respectively face the front flat portions and the back flat portions respectively face the front non-flat portions.
F04D 17/04 - Pompes à flux radial spécialement adaptées aux fluides compressibles, p. ex. pompes centrifugesPompes hélicocentrifuges spécialement adaptées aux fluides compressibles ayant des étages non centrifuges, p. ex. centripètes du type à flux transversal
F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
F24F 1/0025 - Ventilateurs tangentiels ou à flux transversal
An outdoor unit (2) for an air conditioner (1) comprises a housing (30) in which a heat exchange chamber (RA) and a machine chamber (RB) are demarcated by a partition plate (34). The machine chamber (RB) accommodates at least a first control substrate (27) and a second control substrate (28). The heat exchange chamber (RA) accommodates an outdoor fan (17) that blows air. When a surface, of the housing (30), where an air nozzle (41) is formed is defined as a front face, the first control substrate (27) is disposed along the front face of the housing (30) constituting the machine chamber (RB), and the second control substrate (28) is disposed along a right-side face of the housing (30) constituting the machine chamber (RB).
The motor control device according to one embodiment of the present invention comprises an inverter, a calculation unit, a speed estimation unit, and a current control unit. The inverter converts the DC voltage supplied from a DC power supply to an AC voltage and applies the AC voltage to a motor by PWM control. The calculation unit detects the bus line current of the inverter using a resistor connected between the DC power supply and the inverter and, on the basis of the bus line current, calculates motor current flowing through a motor at intervals of a predetermined control period. The speed estimation unit estimates motor speed on the basis of a detection current that is the motor current detected by being calculated by the calculation unit. The current control unit has an integrator for performing integral control at intervals of the predetermined control period, stops performing the integral control in a control period in which the detection current is not detected, and controls the motor current so that the speed estimated by the speed estimation unit becomes a command speed.
H02P 21/24 - Commande par vecteur sans utilisation de détecteurs de position ou de vitesse du rotor
H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
95.
OUTDOOR UNIT OF HEAT PUMP CYCLE DEVICE, AND HEAT PUMP CYCLE DEVICE
This outdoor unit of a heat pump cycle device includes a housing (30) accommodating an outdoor heat exchanger (13) and an outdoor fan (17) that blows air onto the outdoor heat exchanger (13), wherein: the housing (30) has a first front surface portion (36A) provided with a blowout port (41) for blowing, to the outside of the housing (30), air that has exchanged heat with a refrigerant in the outdoor heat exchanger (13) as a result of the rotation of the outdoor fan (17), and a fan guard (42) attached to the first front surface portion (36A) to cover the blowout port (41); and a supporting portion (70) on which the fan guard (42) is supported is provided in a lower portion of the first front surface portion (36A).
The present invention provides a method for manufacturing a vane to be used in a compressor comprising a cylinder, a piston orbiting along the inner circumference of the cylinder, and end plates sealing both ends of the cylinder, the vane being provided in a vane groove of the cylinder so that a cylinder chamber formed between the cylinder and the piston is divided into an intake chamber and a compression chamber, the method comprising: forming, from a base material with a Cr content exceeding 4.5 wt%, a vane (127) having a tip surface (129a) to slide against the outer circumference of the piston; forming a high hardness coating layer (211) on at least the tip surface (129a) of the vane (127); and nitriding the vane (127) after the formation of the high hardness coating layer (211).
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
97.
AIR CONDITIONER, AIR CONDITIONING CONTROL APPARATUS, AND AIR CONDITIONING SYSTEM
A communication adapter connected to an indoor unit included in an air conditioner includes a communication unit, a determination unit, and a communication control unit. The communication unit communicates data to an air conditioning control apparatus that performs centralized control of a plurality of air conditioners. The determination unit determines whether or not transmission target data is communicated by using encryption communication. The communication control unit controls, when the transmission target data is communicated by using the encryption communication, the communication unit in order to communicate the transmission target data by using the encryption communication. Consequently, it is possible to decrease a laying cost of a dedicated communication cable and reduce a communication load needed for data communication related to the air conditioners in an existing communication network at the time of central control performed on the air conditioners.
According to the present invention, when employing a refrigeration cycle circuit equipped with a heat storage device while employing a multi-stage refrigeration cycle, a sufficient amount of refrigerant in the refrigeration cycle circuit during operation is ensured, and a heat storage capability is also maintained without compromising a comfort level by suppressing a decrease in heating capability. This two-stage cascade refrigeration cycle device comprises a high-stage side refrigerant circuit (1) through which a high-stage side refrigerant circulates, a low-stage side refrigerant circuit (2) through which a low-stage side refrigerant circulates, a high-stage side heat storage circuit (3) equipped with a heat storage heat exchanger (H) which is provided in parallel with a cascade heat exchanger (C) through which the high-stage side refrigerant circulates, a low-stage side heat storage circuit (4) equipped with the heat storage heat exchanger (H) through which the low-stage side refrigerant circulates, a refrigerant temperature detecting unit (5) for measuring or calculating a saturation temperature of the low-stage side refrigerant discharged from a low-stage side compressor (21), a heat storage temperature sensor (HS) for measuring a temperature of a heat storage material, and a control unit (6), wherein, when performing a space heating operation, the control unit (6) acquires information relating to the saturation temperature and information relating to the temperature of the heat storage material, and controls the low-stage side compressor (21) such that a temperature difference between the saturation temperature and the temperature of the heat storage material is a first prescribed value.
F25B 7/00 - Machines, installations ou systèmes à compression fonctionnant en cascade, c.-à-d. avec plusieurs circuits, l'évaporateur d'un circuit refroidissant le condenseur du circuit suivant
F24F 11/875 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des appareils de stockage d’énergie thermique
F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
F25B 13/00 - Machines, installations ou systèmes à compression, à cycle réversible
A motor control device (100) wherein an inverter (10) converts a DC voltage that is supplied from a DC electric power source into an AC voltage and applies the converted AC voltage to a motor (M), an electric current detection unit (21) detects a bus bar electric current of the inverter (10) using a shunt resistance (Rs) that is connected between the DC electric power source and the inverter, a 3-phase electric current calculation unit (61) calculates a motor electric current that flows in the motor (M) on the basis of the bus bar electric current, a first extraction unit (91) extracts from the motor electric current a noise component that is included in the motor electric current, and a noise amount determination unit (92) determines the magnitude of the noise in the bus bar electric current on the basis of the extracted noise component.
H02P 21/14 - Estimation ou adaptation des paramètres des machines, p. ex. flux, courant ou tension
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
The present invention provides a refrigeration device which is capable of switching between a single-stage operation and a dual-stage operation and which makes it possible to suppress heat leakage from a use-side apparatus to a refrigerant circuit-side via a heat exchanger that is in a state of not functioning as a heat exchanger due to a refrigerant not flowing. The present invention comprises: a high stage-side refrigerant circuit (2) in which a high stage-side heat transfer medium heat exchanger (11) and a cascade heat exchanger (13) that perform heat exchange with a heat transfer medium are sequentially connected via refrigerant piping; a low stage-side refrigerant circuit (3) in which the cascade heat exchanger (13), a low stage-side heat transfer medium heat exchanger (24) and a low stage-side heat exchanger (22) that are connected in parallel to the cascade heat exchanger (13) and that perform heat exchange with a heat transfer medium are sequentially connected via refrigerant piping; and a control unit (5) which controls the high stage-side refrigerant circuit (2) and the low stage-side refrigerant circuit (3). The control unit (5) is capable of switching between a single-stage operation and a dual-stage operation. The low stage-side heat transfer medium heat exchanger (24) is provided with low stage-side blockage means (40), (41). The high stage-side heat transfer medium heat exchanger (11) is provided with high stage-side blockage means (42), (43).
F25B 7/00 - Machines, installations ou systèmes à compression fonctionnant en cascade, c.-à-d. avec plusieurs circuits, l'évaporateur d'un circuit refroidissant le condenseur du circuit suivant
F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
