A control device 20 has a current table 25 in which d-axis current commands and q-axis current commands corresponding to torque and rotation speed are stored. The current table 25 stores the d-axis current commands and the q-axis current commands for: causing the phase of a current when the torque is in a first range and the rotation speed is in a second range to lag behind the phase of a current when the torque is in the first range and the rotation speed is out of the second range; and increasing the magnitude of the current when the torque is in the first range and the rotation speed is in the second range to be greater than the magnitude of the current when the torque is in the first range and the rotation speed is out of the second range. The control device 20 derives a d-axis current command and a q-axis current command on the basis of the torque and the rotation speed by referring to the current table 25, and outputs, to a current converter 40, an output command based on the derived d-axis current command and q-axis current command. Provided is a current control system capable of reducing vibration at a lower cost compared to the case of changing the rigidity of a motor or a magnetic circuit.
H02P 21/05 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ spécialement adaptés pour amortir les oscillations des moteurs, p. ex. pour la réduction du pompage
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
2.
ROTOR, ROTARY ELECTRIC MACHINE, AND VEHICLE DRIVING DEVICE
This rotor comprises: a rotor core into which a shaft is fitted and which is formed by laminating plate-like members having formed therein through holes; end plates that sandwich the rotor core from both sides in the rotation axis direction to stabilize the same; and magnet covers that each cover a surface, of the corresponding end plate, positioned on the side opposite to the rotor core. Each of the end plates has: an annular part into which the shaft is fitted; a plurality of bolt insertion parts which project outward in the radial direction from the annular part and have formed therein bolt insertion holes into which bolts are inserted; and cutouts which are each formed between adjacent two bolt insertion parts and have portions recessed toward the rotation axis. The cutouts are arranged in a manner of at least partially overlapping with the through holes in the rotation axis direction. Each of the magnet covers has formed therein holes which at least partially overlap with the cutouts in the rotation axis direction.
The purpose of the present invention is to improve the cooling structure of a rotating machine. A rotating machine according to the present invention comprises: a resolver that measures the rotation angle of a rotor; a resolver chamber that accommodates the resolver at one side in the axial direction of a shaft; a guide part that guides a refrigerant to the resolver chamber; a frame that accommodates a stator and the rotor; and a bracket arranged on one side of the frame in the axial direction. The shaft comprises: a hollow section that extends from an opening section that is open at one side in the axial direction to the other side in the axial direction; and a refrigerant oil passage that penetrates through the shaft from the hollow section to the outside in the radial direction. The shaft is pivotally supported by the bracket via a bearing. The opening section is in communication with the resolver chamber. One end of the shaft in the axial direction penetrates through the bracket from the other side in the axial direction to the one side in the axial direction. The resolver chamber is a space at one side of the bracket in the axial direction. An opening in one side of the resolver chamber in the axial direction is blocked by a sensor cover. Additionally, the guide part includes a through-hole that penetrates through the bracket from the other side in the axial direction to the one side in the axial direction.
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
4.
OUTPUT ADJUSTMENT MECHANISM, FIELD EMISSION DEVICE, AND OUTPUT CONTROL METHOD FOR FIELD EMISSION DEVICE
This field emission device 1 has: an emitter unit 3 that supports an emitter 31 in a vacuum container 2; a guard electrode 4 that is provided to the outer periphery of the emitter 31 so as to be capable of coming into contact with and separating from the emitter 31 in the vacuum container 2; a target unit 5 that comprises a target 51 which faces the emitter 31 in the vacuum container 2; a grid electrode 7 that is disposed between the emitter unit 3 and the target 51; a grid electrode support 8 that extends in the direction of the emitter unit 3 from an electrode body 71 of the grid electrode 7 and that supports the grid electrode 7 so as to be capable of reciprocating motion in the axial direction; and a support holding part 10 that holds the grid electrode support 8 so as to be capable of reciprocating motion in the axial direction.
The present invention comprises an ozone gas supply line (L1a) capable of supplying ozone gas, and a circulation line (L2a) for circulating a solvent capable of dissolving ozone gas supplied via a gas-liquid mixer (21). The gas-liquid mixer (21) has a solvent flow path through which the solvent flows in a circulation state and an ozone gas introduction path for introducing, into the solvent flow path, the ozone gas supplied from the ozone gas supply line (L1a). In the circulation line (L2a), at least a portion of a region (R) on the outer peripheral side of the circulation line (L2a) is covered by a heat insulating material, or is covered by a cooling jacket through which a refrigerant can be circulated.
B01F 25/53 - Mélangeurs de circulation, p. ex. dans lesquels au moins une partie du mélange est évacuée d'un récipient et réintroduite dans celui-ci dans lesquels le mélange est évacué d’un récipient et réintroduit dans celui-ci par un tube de recirculation, dans lequel un composant supplémentaire est introduit
B01F 21/20 - Dissolution utilisant le mélange à écoulement
B01F 23/2326 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés en utilisant des moyens de mélange à écoulement pour introduire les gaz, p. ex. des chicanes en ajoutant le composant principal de l’écoulement par des moyens d'aspiration, p. ex. en utilisant un éjecteur
B01F 35/90 - Systèmes de chauffage ou de refroidissement
C02F 1/78 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen d'ozone
The present invention comprises: an ozone gas supply line (L1a) capable of supplying ozone gas; a circulation line (L2a) for circulating a solvent capable of dissolving ozone gas supplied via a gas-liquid mixer (21); and a control unit (6) for controlling the ozone gas supply line (L1a) and the circulation line (L2a). The ozone gas supply line (L1a) has an opening/closing valve (13) capable of switching between allowing or not allowing the ozone gas to circulate in the ozone gas supply line (L1a), and a pressure gauge (14) capable of measuring the gas pressure on the downstream side of the opening/closing valve (13) in the ozone gas supply line (L1a). The control unit (6) compares the measured value of the pressure gauge (14) with an arbitrary pressure threshold value set so as to be equal to or less than the saturated vapor pressure of the solvent, and controls the switching of the opening/closing valve (13). When the measured value of the pressure gauge (14) is the pressure threshold value or higher, the opening/closing valve (13) is closed.
B01F 21/20 - Dissolution utilisant le mélange à écoulement
B01F 23/2326 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés en utilisant des moyens de mélange à écoulement pour introduire les gaz, p. ex. des chicanes en ajoutant le composant principal de l’écoulement par des moyens d'aspiration, p. ex. en utilisant un éjecteur
B01F 25/53 - Mélangeurs de circulation, p. ex. dans lesquels au moins une partie du mélange est évacuée d'un récipient et réintroduite dans celui-ci dans lesquels le mélange est évacué d’un récipient et réintroduit dans celui-ci par un tube de recirculation, dans lequel un composant supplémentaire est introduit
This rotary electric machine assembly includes: a rotary electric machine; an inverter that includes a control board and supplies electric power to the rotary electric machine; a resolver attached to an anti-load side in an axial direction of the rotary electric machine; a rotary electric machine housing that faces a first storage part that houses the rotary electric machine; and an electrical housing that is fixed to the rotary electric machine housing on the anti-load side in the axial direction of the rotary electric machine and partitions the first storage part from a second storage part that houses the inverter. The electrical housing has a sensor arrangement part which communicates with the first storage part through an opening from the second storage part and holds the resolver, and a cover member which closes the opening on the second storage part side. The control board is fixed to the cover member in the second storage part.
H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
H02K 11/21 - Dispositifs pour détecter la vitesse ou la position, ou actionnés par des valeurs de ces variables
8.
ISOLATED DC/DC CONVERTER AND METHOD FOR CONTROLLING ISOLATED DC/DC CONVERTER
According to the present invention, the DC side of an inverter 2 is connected to a first DC voltage source 1. The primary winding of a transformer 3 is connected to the AC side of the inverter 2. A rectifier 4 is connected to the secondary winding of the transformer 3. A second DC voltage source 5 is connected to the DC side of the rectifier 4. The isolated DC/DC converter performs pulse density control by means of intermittent operation. An inverter pause period of the inverter 2 is set as a switching state in which the primary winding of the transformer 3 is short-circuited. The switching states of inverter operation periods immediately before and after the inverter pause period are set the same. The sum of pulse widths of the inverter operation periods immediately before and after the inverter pause period are controlled to be the same as the typical pulse width during inverter operation periods. Magnetic bias of the transformer is suppressed in the isolated DC/DC converter performing intermittent operation using the transformer and the inverter.
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
9.
TARGET VEHICLE SPEED PATTERN DATA GENERATION METHOD AND TEST METHOD
A target vehicle speed pattern data generation method according to the present invention includes: a step ST1 of reading original vehicle speed pattern data; a step ST2 of acquiring a designated value for a driving index; a step ST3 of generating corrected vehicle speed pattern data by shaping a high-frequency component, having a higher frequency than a predetermined cut-off frequency, in the original vehicle speed pattern data; a step ST5 of calculating an evaluation value of the driving index for the corrected vehicle speed pattern data by evaluating the corrected vehicle speed pattern data with reference to the original vehicle speed pattern data; and a step ST9 of storing corrected vehicle speed pattern data, which causes the difference between the designated value and the evaluation value to be less than a determination value, as target vehicle speed pattern data in a storage medium.
This rotary electrical machine comprises: a cylindrical stator; a rotor that is disposed inside the stator and that is formed by layering plate-shaped members in the direction of the rotation axis; and a shaft that is fitted into the rotor and that supports the rotor in such a manner that the rotor can rotate about the rotation axis. The rotor has an in-rotor conduit that is formed by layering a plurality of plate-shaped members in each of which at least one conduit forming hole is formed, in a state where some of openings of the conduit forming holes overlap in the rotation axis direction, and that has an outlet which communicates with a space between the stator and the rotor. The shaft has an in-shaft conduit that communicates with an outlet of an in-housing conduit formed in a housing of a motor and with an inlet of the in-rotor conduit.
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
A rotary electric machine according to the present invention comprises: a terminal holding member that holds a terminal of a circuit which supplies power to a coil of the rotary electric machine; and a refrigerant tank that is integrally formed with the terminal holding member, has a storage part which temporarily stores a refrigerant for cooling the rotary electric machine, and that allows the refrigerant to flow downward from a through hole formed in the bottom of the storage part.
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
This rotary electrical machine comprises: a stator core having a slot for receiving a coil; and a heat dissipation member disposed in the slot. The heat dissipation member is provided with a heat transfer portion that is disposed between the stator core and the coil in the slot, and extends in the direction of a rotary shaft, and a heat dissipation portion that is integrally formed with the heat transfer portion. The heat dissipation portion is provided with at least one of a first heat dissipation section, a second heat dissipation section, and a third heat dissipation section. The first heat dissipation section extends in the radial direction of the stator core at the outer side of the slot, and covers the end face of the stator core orthogonal to the rotary shaft. The second heat dissipation section extends to one side in the circumferential direction of the stator core at the outer side of the slot, and covers the end face of the stator core orthogonal to the rotary shaft. The third heat dissipation section extends to the other side in the circumferential direction of the stator core at the outer side of the slot, and covers the end face of the stator core orthogonal to the rotary shaft.
H02K 9/22 - Dispositions de refroidissement ou de ventilation par un matériau solide conducteur de la chaleur s'encastrant dans, ou mis en contact avec, le stator ou le rotor, p. ex. des ponts de chaleur
H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
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
A coil portion (3) of electrodes (2a, 2b) comprises a plurality of rod-shaped elements (7) that are divided in the circumferential direction of the coil, and rod-shaped elements (7) that are adjacent to each other in the coil circumferential direction are interlinked to form a cylindrical shape as a whole. Each rod-shaped element (7) has a shape extending in the axial direction, a protrusion (71a) is provided at a position at the center of one-side end surface (71), and a recess (72a) is provided at a position at the center of the other-side end surface (72). A protruding-direction tip portion (71b) side of the protrusion (71a) of one of the adjacent rod-shaped pieces (7) is fitted into the recess (72a) of the other rod-shaped piece (7), so that the adjacent rod-shaped elements (7) interlink. Provided between the adjacent rod-shaped pieces are a first slit-shaped gap (73) shaped so as to extend from the protrusion (71a) toward the electrode-facing direction side, and a second slit-shaped gap (74) shaped so as to extend from the protrusion (71a) toward the opposite side in the electrode-facing direction.
A brazing structure for a vacuum container is provided. The vacuum container includes: a fixed conductor on which a fixed electrode is supported; a movable conductor on which a movable electrode is supported; a flange pipe which is bonded to the movable conductor coaxially with the fixed electrode and the movable electrode; and a ceramic pipe which is provided coaxially therewith. One end of the ceramic pipe is bonded to the fixed conductor by brazing, with a linking flange pipe therebetween, and the other end thereof is bonded to the flange pipe by brazing, with a linking flange pipe therebetween. The linking flange pipe includes a bonding portion that is bonded to the ceramic pipe by active metal brazing using an AgCuTi-based, AgCuInTi-based, or AgCuSnTi-based metal.
H01G 5/16 - Condensateurs dont la capacité varie par des moyens mécaniques, p. ex. en tournant un axeProcédés pour leur fabrication à variation de la distance entre armatures
In a coil part (3) of each electrode (2), a plurality of first slit holes (31) and second slit holes (32) which have a shape extending in the Z winding direction are formed alternately in the circumferential direction of the coil part (3). In a contact part (4), formed in the circumferential direction are a plurality of third slit holes (41) which each extend radially outward from the axis (35) side and which are each open on the radially outer side such that a third slit open end is formed. The third slit holes (41) each have an arc shape which bends in the clockwise direction in a view from the opposite direction. A third slit closed end (41b) of each third slit hole (41) is positioned to be separated from the axis of the contact part (4) radially outward thereof and is positioned opposite from the first slit open end (31a). A third slit open end (41a) of one of the electrodes (2) and a third slit open end (41a) of the other of the electrodes (2) are opposite each other in the axis direction.
A reverse force mechanism includes a main shaft, a main link, a movable shaft, an actuating link, a slider, an actuating shaft, a spring link, and a spring shaft. A reverse force spring is attached to the spring link. The spring shaft is fixed to a position a dimension away in a direction parallel to the slider from a base point on an extension of a line segment from the main shaft to the movable shaft when in an inserted state in which the movable shaft is farthest from a line connecting the main shaft and the actuating shaft. The dimension is set such that a resultant operating force is constant at a non-zero value. An angle between the actuating link and the slider is set to be variable within a range of 25° to 85° during operation.
F16F 3/04 - Ensembles de ressorts constitués par plusieurs ressorts, p. ex. pour réaliser une caractéristique d'élasticité voulue avec ressorts en acier ou faits d'un autre matériau, ayant une friction intérieure faible composés uniquement de ressorts enroulés
F16F 15/067 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif utilisant des moyens élastiques avec ressorts métalliques utilisant uniquement des ressorts enroulés
H01G 5/16 - Condensateurs dont la capacité varie par des moyens mécaniques, p. ex. en tournant un axeProcédés pour leur fabrication à variation de la distance entre armatures
Each magnetic pole of an embedded magnet rotor includes an iron core in which a magnet is arranged, and has a first flux barrier and a second flux barrier at end portions of the magnet, respectively, across a magnetic pole center. The first flux barrier includes a first extending portion communicating with a first base portion and extending circumferentially from the first base portion toward the magnetic pole center. The second flux barrier includes a second extending portion arranged away from a second base portion with the iron core in between and extending in a circumferential direction from the second base portion side toward the magnetic pole center. Between the second base portion and the second extending portion, a magnetic flux bypass portion connecting an outer periphery and an inner periphery of a rotor in a radial direction by the iron core is formed.
A rotary electric machine comprises a rotor and a stator, wherein one of the rotor and the stator includes: a groove portion that is formed on a circumferential surface facing the other of the rotor and the stator and extends in a direction that intersects with a circumferential direction, and a covering portion made of resin that covers the groove portion. The groove portion includes a retention portion that is formed such that a groove width at a second position is wider than a groove width at a first position, wherein the second position is separated in a radial direction from an opening farther than the first position. The retention portion is configured so as to prevent removal of the covering portion by engaging with resin material that is filled in the groove portion.
H02K 1/16 - Noyaux statoriques à encoches pour enroulements
H02K 3/24 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre avec des canaux ou des conduits pour un agent de refroidissement entre les conducteurs
H02K 3/30 - Enroulements caractérisés par leur matériau d'isolement
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
A vacuum capacitor is provided with a vacuum container accommodating a fixed electrode and movable electrode to ensure capacitance, and a vacuum expansion container communicating with the vacuum container in series. The vacuum container is provided with a movable support part supporting the movable electrode, a movable conductor supporting the movable support part to enable reciprocation in the axial direction of the vacuum container, a fixed conductor supporting the fixed electrode, and a main bellows interposed between the movable support part and the movable conductor. The vacuum expansion container is provided with a movable part arranged coaxially with the movable support part, and an adjustment bellows interposed between the movable part and the inner end surface of the vacuum expansion container. The movable support part and movable part are connected by an insulating connection rod arranged coaxially with the fixed electrode and movable electrode.
H01G 5/14 - Condensateurs dont la capacité varie par des moyens mécaniques, p. ex. en tournant un axeProcédés pour leur fabrication à variation de surface efficace d'armature par mouvement d'armatures longitudinal
Provided is an electric power conversion device that suppresses increases in size, cost, and failure risk of the device, and in which phase shift PWM control is applied. First and second legs (leg 1, leg 2) have a DC electric power supply and first to N-th units (41–4N) of a full-bridge circuit connected in parallel to the DC electric power supply. One of the ends of reactors (L11–L(2N)2) are respectively connected to the u-phase and the v-phase of the first to N-th units (41–4N). The other ends of the reactors connected to the u-phase of the first to N-th units (41–4N) of the first leg (Leg 1) are connected to each other to form an output terminal. Furthermore, the other ends of the reactors connected to the v-phase of each unit of the second leg (leg 2) are connected to each other to form an output terminal. The control unit controls switching elements of the first to N-th units (41–4N) of the first and second legs (leg 1, leg 2) by phase shift PWM control.
H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
21.
ELECTRIC-POWER CONVERSION DEVICE AND METHOD OF CONTROLLING ELECTRIC-POWER CONVERSION DEVICE
According to the present invention, when secondary-side DC voltages are at or above a threshold value, primary-side maximum pulse widths, secondary-side maximum pulse widths, and phase differences therebetween for realizing, on the basis of primary-side DC voltages, a secondary-side DC current command value going to isolated bidirectional DC/DC converters 3 are output, and when the secondary-side DC voltages are below the threshold value, primary-side pulse widths, secondary-side pulse widths, and phase differences therebetween for realizing, on the basis of the primary-side DC voltages and the secondary-side DC voltages, the secondary-side DC current command value are output. Further, when the secondary-side DC voltages are at or above the threshold value, a primary-side DC voltage command reference value calibrated on the basis of the threshold value and the secondary-side DC voltages is set as a primary-side DC voltage average command value going to AC/DC converters 2, and when the secondary-side DC voltages are below the threshold value, a primary-side DC voltage command lower-limit value is set as the primary-side DC voltage average command value.
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
22.
DRIVE CONTROL DEVICE FOR VARIABLE VACUUM CAPACITOR
A drive control device 10 for a variable vacuum capacitor 1 includes a motor 5, a resolver 6, and a control unit 8. The motor 5 drives a movable electrode of the variable vacuum capacitor 1. The resolver 6 detects the rotational position of the motor 5. The control unit 8 controls the rotation of the motor 5 on the basis of the rotational position detected by the resolver 6.
TOKYO ELECTRIC POWER COMPANY HOLDINGS, INCORPORATED (Japon)
MEIDENSHA CORPORATION (Japon)
Inventeur(s)
Suzuki, Kenichi
Maeda, Naoto
Takami, Jun
Samejima, Ryota
Noda, Hideki
Isoo, Jun
Shoji, Kazu
Abrégé
A control system is provided for a power conversion system having a power converter that controls a virtual synchronous generator simulating a synchronous generator and interconnected to a power grid. The control system has a virtual synchronous impedance compensation block inputting an output current detection value of the power converter and a set voltage amplitude command value, simulating a voltage drop due to a virtual synchronous impedance, and calculating an output voltage command value and an internal induced voltage according to the simulated voltage drop; a virtual synchronous generator model determining an angular frequency simulating the synchronous generator; and a PCS output voltage control unit performing control so that an output voltage of the power conversion system coincides with the output voltage command value calculated by the virtual synchronous impedance compensation block.
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
The present invention provides an electric power converter capable of easily achieving high efficiency and low noise by performing soft switching, and realizes generation of an output pulse voltage having a constant rising speed and a constant falling speed without being affected by load and component variability. A first switching element (S1) is connected between a DC power source (DC) and a load (2). A second switching element (S2) is connected in parallel with the load (2). One end of an inductor (L1) is connected to a connection point of the first and second switching elements (S1, S2). Capacitors and third and fourth switching elements (S3, S4) are connected such that the voltage on the other end side of the inductor (L1) lies at the middle (Vin/2) of the voltage (Vin) of the direct-current power source DC. Then, a current is preliminarily passed through the inductor (L1) from before the first and second switching elements (S1, S2) become conductive.
H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
25.
CAPACITOR TEMPERATURE ESTIMATION DEVICE, CAPACITOR TEMPERATURE ESTIMATION METHOD, AND POWER CONVERSION CONTROL DEVICE
In a capacitor temperature estimation device 10 for estimating the temperature of a capacitor 24 of an inverter 23 in a motor drive system 1, a pre-filter processing estimation unit 11 calculates a temperature rise estimation value of the capacitor 24 on the basis of a data table 15 having a motor rotation speed, a torque command value, and a DC voltage of the motor drive system 1 as parameters. A filter processing part 12 corrects the temperature rise estimation value via low-pass filter processing based on a thermal time constant of the capacitor. A disturbance correction unit 13 further corrects the temperature rise estimation value after the low-pass filter processing via disturbance correction based on a refrigerant flow rate, the ambient temperature of the capacitor 24, and a refrigerant temperature. A temperature estimation unit 14 calculates a temperature estimation value of the capacitor 24 by adding the temperature rise estimation value after the disturbance correction to the refrigerant temperature detection value.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquementContrôle des paramètres de fonctionnement, p. ex. de la vitesse, de la décélération ou de la consommation d’énergie
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
H02M 7/49 - Combinaison des formes de tension de sortie d'une pluralité de convertisseurs
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
Provided is a cell multiplex inverter in which a plurality of cells are multiply connected in a star connection to each phase of an alternating-current system, wherein alternating-current output voltages of the cells are equalized even when an imbalance in alternating-current voltages occurs or unbalanced alternating voltages are intentionally output. When the amplitude of the voltage command value of a certain phase is greater than the amplitude of the voltage command value of another phase, a corrected voltage command value generation unit superimposes a sine wave of the opposite phase to the certain phase onto the voltage command value as a zero-phase voltage, and when the amplitude of the voltage command value of the certain phase is smaller than the amplitude of the voltage command value of the other phase, the corrected voltage command value generation unit superimposes a sine wave of the same phase as the certain phase onto the voltage command value as a zero-phase voltage.
H02M 7/49 - Combinaison des formes de tension de sortie d'une pluralité de convertisseurs
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
28.
VACUUM INTERRUPTER AND METHOD FOR MANUFACTURING VACUUM INTERRUPTER
A reinforcing part (6) having a cylindrical peripheral wall (60) with a smaller diameter than that of a cylindrical coil part (3) is provided on the inner peripheral side of the coil part (3) so as to be positioned concentrically. In the coil part (3), a plurality of first slit holes (31) and second slit holes (32) are formed, at predetermined intervals in the circumferential direction, to penetrate the coil part (3) in the radial direction and extend in the axial direction. The reinforcing part (6) has: a surface joining part (61) that is surface-joined to an inner peripheral surface (30a) of the coil part (3); and an annular groove (62) extending in and along the surface joining part (61) in the circumferential direction. The groove (62) is formed to open only on the side facing the inner peripheral surface (30a). The surface joining part (61) is brazed to the inner peripheral surface (30a) via a brazing material (7) provided in the groove (62).
This rotary electrical machine assembly comprises: a rotary electrical machine; an inverter that has a neutral point booster circuit connected to a neutral point of the rotary electrical machine; a rotary electrical machine housing that accommodates the rotary electrical machine; an electrical equipment housing that is fixed to the rotary electrical machine housing on the anti-load side of the rotary electrical machine; and an electrical equipment cover that is attached to the anti-load side of the electrical equipment housing to seal off an opening of the electrical equipment housing, and that forms, together with the electrical equipment housing, an accommodation portion for the inverter. An element of the neutral point booster circuit, and a control board and a voltage terminal of the inverter are attached to the electrical equipment housing. A smoothing capacitor, a semiconductor module, and a gate substrate of the inverter are attached to the electrical equipment cover.
H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
30.
TROLLEY WIRE INSPECTION DEVICE AND TROLLEY WIRE INSPECTION METHOD
Provided are a trolley wire inspection device and a trolley wire inspection method for accurately detecting a worn region of a trolley wire. A line sensor image generation unit 30 generates a line sensor image from an image captured by a line sensor 22. A worn region extraction image generation unit 32: extracts a worn region of a trolley wire by performing image processing in accordance with a plurality of image processing execution procedures M registered in an image processing execution procedure storage unit 33; corrects the worn region by scanning outward from the extracted worn region and setting a boundary of the worn region at positions where the brightness value falls to or below a previously set brightness value; and generates a plurality of worn region extraction images corresponding respectively to the plurality of image processing execution procedures M. A worn region extraction image evaluation unit 34 selects a worn region extraction image with the highest evaluation value, from among the plurality of worn region extraction images. A trolley wire deviation calculation unit 35 and a trolley wire residual diameter calculation unit 36 calculate the deviation and the residual diameter of the trolley wire on the basis of the selected worn region extraction image.
The present invention is applied with a bearing (4) comprising: a flange-like part (5) that is in the form of a ring having a diameter larger than an opening diameter of a flange through-hole (3) on the other side in the shaft center direction; and a cylindrical wall part (6) that extends from the inner circumferential edge part of the flange-like part (5) along the shaft center direction. On the cylindrical wall part (6), claw parts (61) are formed on the outer circumferential surface (6b), and the outer diameter of the location where the claw parts (61) are formed is larger than the opening diameter of the flange through-hole (3) on one side in the shaft center direction. Further, on the cylindrical wall part (6), a plurality of slit holes having a shape that penetrates in the radial direction and extends in the shaft center direction and a shape that opens to one side in the shaft center direction are formed in the circumferential direction at prescribed intervals. Each piece of the cylindrical wall part, which is a site between the slit holes, is elastically deformable in the radial direction.
A control device (4) for this dynamometer system comprises: a feedback controller (50) that generates a feedback input signal on the basis of a torque detection signal and a feedback command signal; a natural vibration suppression circuit (52) that generates a correction signal so that natural vibration of a vibration element is suppressed; an inverter input generation unit (53) that generates an inverter input signal on the basis of the feedback input signal and the correction signal; and a command generation unit (7) that generates the feedback command signal on the basis of the torque detection signal and a speed detection signal. The command generation unit (7) generates the feedback input signal from a signal generated on the basis of the speed detection signal and the torque detection signal through band stop processing that attenuates a component within a stop band.
A coolant flow passage structure is provided in a rotating machine capable of reducing the pressure loss of a coolant flowing through a flow passage, thereby securing a smooth flow of the coolant and improving efficiency. A coolant flow passage structure on a cylindrical frame in a motor and cooling the motor includes a flow passage main body in a wall portion of the frame to extend while meandering, and a bypass flow passage to extend along a circumferential direction of the frame at one of both end portions in an axial direction of the frame. The bypass flow passage communicates front side reverse flow passage portions with each other. The flow passage main body includes straight flow passage portions disposed in a circumferential direction of the frame, and reverse flow passage portions connected to the end portions of the straight flow passage portions.
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
An electric inertia control device of this testing system generates a torque current command signal in such a way that a dynamometer behaves as an inertial body having a prescribed set inertia Jset. The electric inertia control device includes: a target speed setting unit for generating a target speed signal on the basis of a shaft torque detection signal and the set inertia; a speed controller for generating a feedback input signal on the basis of a difference signal between the target speed signal and a speed detection signal; and a feed-forward controller for generating a feed-forward input signal on the basis of the shaft torque detection signal. The feed-forward controller generates the feed-forward input signal by combining the shaft torque detection signal, multiplied by a first feed-forward gain Kff, and an integrated value of the shaft torque detection signal, multiplied by a second feed-forward gain Kfi.
dc21dc22dc21dc22dc22 to a load or a power supply. The AC/DC power supply outputs, during power unbalance occurring due to the states of the load or the power supply, a voltage while maintaining the voltage balance of a secondary side DC voltage and the primary side DC voltage of each cell. The AC/DC power supply achieves the voltage balance of each DC bus during the power unbalance without using an additional balance circuit or a commercial transformer with multiple windings.
H02M 7/12 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
Provided is an automated guided vehicle in which a high-stroke and flat lifting device is mounted to achieve lowering of the floor of the automated guided vehicle, and that can be adapted to a load of a low path line and can handle the path lines of a wide variety of loads by the one identical vehicle. The automated guided vehicle comprises a carriage provided with a driving wheel and configured so as to be able to freely travel, and a lifting device 4 provided on the carriage so as to be freely liftable and lowerable. The lifting device 4 includes: a device lifting part 13 having, on a lower surface, a load placing part S for placing a load and having a cam follower guide surface G1 parallel to a traveling surface of the carriage; a device foundation part 12 fixed to a lower fixed position of the device lifting part 13 and having a cam follower guide groove G2 extending in a direction parallel to a traveling surface of the carriage; a link mechanism 28 having first and second link arms 19, 20 of which intermediate parts are pin-joined and connected to each other in an X-shape rotatably around the joint part; and a drive mechanism 29 for moving a first cam follower 22 of the first link arm 19.
B66F 9/06 - Dispositifs pour lever ou descendre des marchandises volumineuses ou lourdes aux fins de chargement ou de déchargement se déplaçant, avec leurs charges, sur des roues ou sur un dispositif analogue, p. ex. chariots élévateurs à fourche
B65G 1/00 - Emmagasinage d'objets, individuellement ou avec une certaine ordonnance, dans des entrepôts ou des magasins
B66F 7/06 - Châssis de levage, p. ex. pour lever des véhiculesAscenseurs à tablier à tabliers supportés par des leviers pour un mouvement vertical
38.
Bubble generation device and liquid filtration device
A bubble generation device capable of causing bubbles to hit filtration membranes almost simultaneously includes a housing having side plates and a top plate fixed to the side plates; bubble release ports disposed therein and arranged along a longitudinal direction of the top plate; and a bubble release chamber disposed in the housing and communicated with the bubble release ports. A folded-back path is formed by at least a folded-back plate and an inner plate disposed therein. One end and another end, respectively, of each of the folded-back plate and the inner plate in the longitudinal direction, are fixed to one of the two side plates and another of the two side plates, which face each other. One side and another side, respectively, of the folded-back path in the lateral direction are communicated with the bubble release chamber and a gas storage chamber.
C04B 35/453 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zinc, d'étain ou de bismuth ou de leurs solutions solides avec d'autres oxydes, p. ex. zincates, stannates ou bismuthates
H01C 7/112 - Noyaux de varistance en oxyde métallique du type ZnO
H01C 7/12 - Résistances de protection contre les surtensionsParafoudres
40.
Filtration membrane unit, holder holding same, filtration system including filtration membrane unit and holder, and filtration treatment apparatus including plurality of filtration systems
A filtration membrane unit includes a filtration membrane and a suction side socket fixed to an end on one side in a longitudinal direction of the filtration membrane to hold the filtration membrane. The suction side socket extends in a lateral direction of the filtration membrane in a fixed state, and includes a recess into which the end is inserted. A flow path communicated with the recess extends in an extending direction of the suction side socket. A discharge port for discharging filtrate in the flow path is provided. The suction side socket includes a first outlet disposed on one side in the extending direction with respect to a center in the extending direction of the suction side socket, and a second outlet disposed on another side in the extending direction with respect to the center in the extending direction of the suction side socket.
NATIONAL AGENCY FOR AUTOMOBILE AND LAND TRANSPORT TECHNOLOGY (Japon)
Inventeur(s)
Takahashi, Toshimichi
Nanaarashi, Takuro
Okui, Nobunori
Abrégé
The objective of the present invention is to improve the cooling efficiency of a vehicle by making the wind speed distribution of cooling air supplied to the vehicle variable, thereby uniformly distributing the wind speed at a blowing port. Cooling air from a vehicle cooling device 1 is supplied through a duct 2 to a test vehicle. The duct 2 includes: a duct body 2a in which an intake port 2b and a blowing port 2c for cooling air are formed; a group of rotatable drive rods 12 which are provided in the width direction of the duct body 2a; and a group of blades 15 which extend from each drive rod 12 in the direction of the intake port 2b. Each blade 15 comprises: a main blade 20 which moves vertically in accordance with the direction of rotation of the driving rod 12; and a slide plate 21 which is provided on the main blade 20 so as to be slidable in the front-rear direction.
The present invention improves the mass-producibility and ease of assembly of a substrate-mounted transformer structure and suppresses leakage inductance. A transformer core substrate 1 has holes 10 that correspond to the approximate center positions of respective pulse transformer cores 2 in the radial direction. Respective primary windings are provided inside the pulse transformer cores 2 via the holes 10. Respective secondary windings that are wound onto the pulse transformer cores 2 are formed from a wiring pattern that is inside a substrate 6 and six conductors (electrical wires) 3 that are soldered to the substrate 6. The transformer core substrate 1 can be connected to a main board 30 by connectors 5a, 5b.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H05K 1/16 - Circuits imprimés comprenant des composants électriques imprimés incorporés, p. ex. une résistance, un condensateur, une inductance imprimés
A gate drive circuit of a power converter includes semiconductor devices connected in series and pulse transformers, each of which includes a primary winding and a secondary winding. The primary windings of the pulse transformers are connected in series; the secondary windings of the pulse transformers are respectively connected to the semiconductor devices directly or indirectly; and the pulse transformers establish insulation between a primary side and a secondary side of the pulse transformers, while transmitting electric power or electric power and control signals from the primary side to the secondary side. Auxiliary windings are provided that establish magnetic coupling between the pulse transformers.
H03K 17/691 - Commutation ou ouverture de porte électronique, c.-à-d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ avec une isolation galvanique entre le circuit de commande et le circuit de sortie utilisant un couplage par transformateur
H02M 1/00 - Détails d'appareils pour transformation
H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle
Provided is a power conversion device in which the output ripple can be suppressed by performing operation in the appropriate number of parallel power conversion devices according to the magnitude of a current rating. A plurality of power conversion devices 1-N are provided in parallel with a load 200. A first current detector HCT_A11 having a first current rating, a first reactor L_A11, and an MC11 selecting the HCT_A11 are each inserted in an electric path connecting each power conversion device and the load and are sequentially connected in series from the power conversion device to the load. A series circuit comprising a second HCT_A21 having a small current rating, an L_A21, and an MC21 is connected between both ends of the MC11 in parallel as many as the number of installed power conversion devices. N devices are operated in parallel in a region where the operation of a plurality of devices having large current ratings are required, and the appropriate number of devices are operated in a small current region where operation is possible according to each current rating.
H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
A ground shield (3) is configured to have: a cylindrical part (31) positioned coaxially on the outer peripheral side of a porcelain tube inner conductor (2); and an extension part (32) having a shape extending outward in the radial direction of a porcelain tube (1) from the cylindrical part (31) and interposed between a porcelain tube-side flange (4) and a container-side flange (6). A notch recess (7) having a shape capable of receiving at least an extension-direction end part (35) side of the extension part (32) is provided in one of: an inner peripheral side part (4a) of a porcelain tube-side opposing surface of an opposing surface (40) of the porcelain tube-side flange (4); and an inner peripheral side part (6a) of a container-side opposing surface of an opposing surface (60) of the container-side flange (6). The extension part (32) is configured such that, in a state of being supported on the inner peripheral side part (4a) of the porcelain tube-side opposing surface, at least the extension-direction end part (35) side of the extension part (32) is received in the notch recess.
The present invention arranges and connects a semiconductor switching element of a power converter with low ESL. A semiconductor switching element (14A) on the upper arm side connected to a DC capacitor and a semiconductor switching element (14B) on the lower arm side connected to the same capacitor are provided with a gate substrate (11) for connecting the terminals thereof. The elements (14A, 14B) are provided with a central collector terminal C, an emitter terminal E on one end side, and a gate terminal G on the other end side, and the terminals C, E, G each extend perpendicularly to the gate substrate (11). The elements (14A, 14B) are each mounted on the opposite surface of a cooler (15) at an offset. The emitter terminal C of the element (14A) and the collector terminal C of the element (14B) face each other and are connected by a wiring pattern having a substantially shortest distance on the gate substrate (11).
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
A lower frame (30) has a bus bar (31) connected to an AC terminal (41), a pair of shields (33) erected from side edges on both sides of the bus bar (31), and a lower frame opening (32) in which a position overlapping a main body part of a power semiconductor (40) is cut out during assembly. An upper frame (50) has slits (53) formed at positions where the shields (33) penetrate during assembly, an upper frame opening (51) in which a position overlapping the main body part of the power semiconductor (40) and the AC terminal (41) is cut out during assembly, and a leaf spring (52) erected from the side surface of the upper frame opening (51) toward the inside of the upper frame opening (51). A current sensor is mounted on the substrate at a position overlapping the bus bar (31) during assembly. The power semiconductor (40) is fixed to a cooler (10) while being sandwiched between the upper frame (50) and the lower frame (30). The power conversion devices improves the cooling capacity of the power semiconductor and improves the positioning accuracy of the shields.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
NATIONAL AGENCY FOR AUTOMOBILE AND LAND TRANSPORT TECHNOLOGY (Japon)
ITD LAB CORP. (Japon)
Inventeur(s)
Takahashi, Toshimichi
Nakagawa, Masao
Saneyoshi, Keiji
Abrégé
The present invention assigns a discretionary parallax to left and right images being captured by a stereo camera. Provided is a VR test system of a stereo camera 202, the VR test system comprising a driving environment simulation device 10 for outputting video of a sensor model as mutually independent left and right images, a display device 201 for displaying each of the left and right images, a stereo camera 202 installed in a darkroom together with the display device 201, and a conversion lens 203 disposed between the display device 201 and the stereo camera 202. The stereo camera 202 has left and right cameras for capturing images through the conversion lens 203 independently of left and right, the left image from among the left and right images displayed on the display device 201 being captured by the left camera, and the right image being captured by the right camera. The driving environment simulation device 10 is provided with an image processing unit 101. The image processing unit 101 generates mutually independent left and right images so as to have an equivalent angle of view.
H04N 17/00 - Diagnostic, test ou mesure, ou leurs détails, pour les systèmes de télévision
H04N 13/128 - Ajustement de la profondeur ou de la disparité
H04N 13/239 - Générateurs de signaux d’images utilisant des caméras à images stéréoscopiques utilisant deux capteurs d’images 2D dont la position relative est égale ou en correspondance à l’intervalle oculaire
An electric power conversion device according to the present invention is provided with a smoothing capacitor C comprising a capacitor element 11, a metal capacitor case 14 that houses the capacitor element 11, a plastic film, and a resin 15. A sheet metal for shaping the capacitor case 14 is a metal-resin composite sheet metal in which a plastic film is bonded to the inner surface side of the capacitor case 14. The inside of the capacitor case 14 is filled with the resin 15. This configuration improves the cooling efficiency of the capacitor in the electric power conversion device.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H01G 2/08 - Dispositions de réfrigérationDispositions de chauffageDispositions de ventilation
The objective of the present invention is to restrain a tire in a turnable manner without scratching or damaging a vehicle body, the tire, or the like, of a test vehicle. Plates 6 have one end portion 6a arranged respectively in front of and behind a front tire 1a of a test vehicle 1 placed on a roller device 19 of a chassis dynamometer system 2. Groups of free rollers 8 are arcuately arranged on the one end portions 6a of the plates 6 so as to sandwich the front tire 1a. Each of the free rollers 8 is axially supported by a bracket 7 so as to be free to rotate.
TOKYO ELECTRIC POWER COMPANY HOLDINGS, INCORPORATED (Japon)
MEIDENSHA CORPORATION (Japon)
Inventeur(s)
Suzuki, Kenichi
Isoo, Jun
Samejima, Ryota
Noda, Hideki
Shoji, Kazu
Inoue, Toshiya
Abrégé
dceaceaa *bb *cc *acac *eaa *bb *cc *. In a system interconnection power conversion device for performing voltage control type virtual synchronous generator control, during an overcurrent suppression operation, the synchronization force of a virtual synchronous generator is maintained and step-out is suppressed.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux
An arc shield with which a tubular body of a vacuum container is provided includes a tubular arc-shield body portion interposed between a fixed-side insulating portion and a movable-side insulating portion; a tubular arc shield fixed-side extension portion extending from the arc-shield body portion on the axially fixed side along the inner peripheral side of the fixed-side insulating portion; and a tubular arc shield movable-side extension portion extending from the arc-shield body portion on the axially movable side along the inner peripheral side of the movable-side insulating portion. Further, at least one of the arc shield fixed-side extension portion and the arc shield movable-side extension portion is shaped such that the portion becomes smaller in diameter in a stepped manner in the direction of extension thereof.
A housing of a rotating electrical machine accommodates a stator and a rotor, and forms a first space communicating with a gap on a one end-side of the stator and a second space communicating with the gap on another end-side of the stator. The stator has an intermediate duct communicating with the gap. The housing has a one end-side intake port; a one end-side exhaust port; an another end-side intake port; an another end-side exhaust port; and an air intake port. The rotating electrical machine includes a one end-side throttle mechanism to suppress flow of air from the one end-side intake port to the first space more than a flow on the one end-side exhaust port side; and an another end-side throttle mechanism to suppress flow of air from the another end-side intake port to the second space more than a flow on the another end-side exhaust port side.
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
H02K 9/04 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine comportant des moyens pour établir la circulation d'un agent de refroidissement
55.
Vehicle speed control device and driver model processing device
This vehicle speed control device includes: a driving force command generation unit that generates a driving force command FcmD on the basis of the actual vehicle speed V of the vehicle and a vehicle speed command Vcmd; an accelerator control unit that generates an opening degree command θAC for the accelerator pedal on the basis of the driving force command Fcmd; a brake control unit that generates an opening degree command θBK for the brake pedal on the basis of the driving force command Fcmd; and a step change control unit that selects, on the basis of the driving force command Fcmd, whether to perform an acceleration control mode in which the opening degree command θAC is input to the drive robot, or a brake control mode in which the opening degree command θBK is input to the drive robot.
B60K 31/02 - Accessoires agissant sur un seul sous-ensemble pour la commande automatique de la vitesse des véhicules, c.-à-d. empêchant la vitesse de dépasser une valeur déterminée de façon arbitraire ou maintenant une vitesse donnée choisie par le conducteur du véhicule comprenant un servo-mécanisme actionné électriquement
B60K 26/02 - Agencement ou montage sur les véhicules des dispositifs de commande des ensembles de propulsion des moyens ou organes de déclenchement
B60T 7/12 - Organes d'attaque de la mise en action des freins par déclenchement automatiqueOrganes d'attaque de la mise en action des freins par déclenchement non soumis à la volonté du conducteur ou du passager
56.
ELECTRON BEAM EMISSION STRUCTURE AND FIELD EMISSION DEVICE
In a cold cathode (1) having a columnar electrode substrate (11) an axial one end of which is disposed in a posture facing an anode (2), the dimension in the radial direction of an anode-side facing surface (12) is 0.1 mm to 1 mm, and an electron emission unit (4) having a carbon nanostructure is formed on the anode-side facing surface (12). The surface of the carbon nanostructure is formed such that a granular part (40) having a shape raised from the surface is distributed in an island shape with respect to the surface, and has an island-like structure. The granular part (40) is formed such that the dimension in the raised direction is 10 μm or more, and the dimension in the radial direction of the maximum diameter part of the granular part is 10 μm or more.
An electric field emission device includes a vacuum vessel configured to include a vacuum chamber; an emitter positioned on one side in an axial direction of the chamber and including an electron generation portion facing another side in the axial direction; a target positioned on the other side of the chamber and facing the emitter; a guard electrode that is a cylindrical body, is fixed to the vacuum vessel, and has an opening portion; a support to move the emitter in the axial direction on an inner side of the guard electrode; and an electric field shield body formed of a conductor connected to the guard electrode. The electric field shield body partially overlaps the opening portion on a projection plane in the axial direction, and is formed in a shape partitioning the opening portion into a plurality of areas.
A resin-metal composite body is provided that includes a resin base material having a surface roughness Sq of 1.5 μm or more and a surface roughness Sku of 4.5 μm or less, and a metal plating on the resin base material.
This field emission device 1 includes: an insulator 4 that is joined to a cathode 2 and an anode 3 to form a vacuum container 10; and an intermediate electrode 5 that is joined to the insulator 4 between the cathode 2 and the anode 3 in the vacuum container 10, and in which is formed a hole 51 through which an electron beam emitted from the cathode 2 to the anode 3 passes. The intermediate electrode 5 comprises a conductor 52 that is led out from the insulator 4 in the axial direction of the vacuum container 10, grounded via a direct current power supply 7, and connected to the anode 3.
Provided is a refrigerant abnormality determination device (1) of a power conversion device that cools a switching element with a refrigerant and includes a temperature protection thermistor (6), wherein a pre-filter thermistor estimation temperature calculation unit (2) calculates a pre-filter thermistor estimation temperature on the basis of a thermistor temperature table (21) having a current command value or a current detection value of the power conversion device as a parameter. The pre-filter thermistor estimation temperature is input to the filter (3). An addition unit (5) calculates a thermistor estimation temperature by adding a refrigerant temperature value from the refrigerant temperature sensor (4) to the value output from the filter (3). An abnormality determination unit (8) determines that the refrigerant is abnormal when a determination time is equal to or smaller than a continuous time during which the difference between the inclination of a thermistor detection temperature from the thermistor (6) and the inclination of the thermistor estimation temperature from the addition unit (5) is equal to or greater than a threshold value.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
The present invention provides a linear metal fitting abnormality detection device and a linear metal fitting abnormality detection method that make it possible to provide a data set for improving detection accuracy of abnormality in an overhead wire fitting. The present invention is provided with: line sensor cameras 10L, 10R which are each provided with a fisheye lens and which are disposed on a vehicle roof; a trimming unit 141 for trimming portions outside imaging target ranges from an image 50L captured by a line sensor camera 10L and from an image 50R captured by a line sensor camera 10R; and an image left-right inversion processing unit 142 for performing left-right inversion on one of the trimmed image 50L and the trimmed image 50R so that the directions of the image-captured overhead wire fittings coincide with respect to the center positions of the line sensor cameras 10L, 10R. Among the trimmed images, an image that has not undergone the left-right inversion and an inverted image that has undergone the left-right inversion are provided as processed images for detecting abnormalities in the overhead wire fitting.
Provided is an overhead wire fitting abnormality detection device and an overhead wire fitting abnormality detection method capable of improving accuracy in detecting abnormalities in an overhead wire fitting at low cost even when a component to be detected is small. The overhead wire fitting abnormality detection device comprises a learning processing unit 17 that performs learning using image data generated by imaging an overhead wire fitting, and a data processing unit 15 that performs abnormality determination using the image data. The learning processing unit 17 is provided with a facility learning unit 19 that learns detection for a facility, and a component learning unit 21 that learns detection for components of the facility. In the data processing unit 15, the facility is detected according to a facility detection model learned by the facility learning unit 19, the components are detected according to a component detection model learned by the component learning unit 21 from the detected facility, and abnormalities in the facility and/or the components are determined according to an abnormality detection model trained in advance.
The outer peripheral side of a columnar electrode base (11) of a cold cathode (1) oriented to face an anode (2) is surrounded by a focusing electrode (3) having a cylindrical electrode base (31; cylindrical part (30)) arranged coaxially with the axis of the columnar electrode base (11). The cylindrical electrode base (31) has: a cylindrical part (30) that is arranged coaxially with the cold cathode axis and surrounds the outer peripheral side of the columnar electrode base (11); an annular base diameter reduction part (33) that protrudes from an end (32) of the cylindrical part (30) on the anode (2) side to the cold cathode axis side and overlaps a peripheral edge part (41) of an electron emission part (4) in the extension direction of the cold cathode axis; and an electron beam passing hole (34) that penetrates in the extension direction on the inner peripheral side of the base diameter reduction part (33).
In a motor cooling system 1, a determination unit 33 is configured to perform periodic sampling of a driving current Ip or a rotation speed Np of an oil pump 23, and detect a decrease in cooling oil of a motor 2 when it is determined that a standard deviation of the driving current Ip or the rotation speed Np with respect to a plurality of sampling points is larger than a preset threshold value. The threshold value is set on the bases of a measurement value of the driving current Ip or the rotation speed Np of the oil pump 23 which is obtained by an operation test of the motor 2 in a state in which the cooling oil has decreased.
H02K 9/24 - Protection contre les défectuosités des dispositions de refroidissement, p. ex. du fait de fuites de l'agent de refroidissement ou du fait d'un arrêt de la circulation de l'agent de refroidissement
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
H02K 11/20 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection pour la mesure, la surveillance, les tests, la protection ou la coupure
H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
65.
WATER TREATMENT APPARATUS AND WATER TREATMENT METHOD
A water treatment apparatus 1 comprises a storage tank 2 for water to be filtered, an ozone water mixing tank 6, and a pulse plasma discharge tank 7. The storage tank 2 for water to be filtered stores water to be filtered which contains a substance to be treated and which is provided for filtration. The ozone water mixing tank 6 mixes, with ozone water, concentrated discharge liquid of the substance to be treated, in which the substance to be treated that has been separated by the filtration from the water to be filtered is concentrated. The pulse plasma discharge tank 7 provides pulse plasma to a mixed liquid of the ozone water and the concentrated discharge liquid of the substance to be treated.
The disclosed vehicle drive device (10) includes: left and right motors (1,2) that drive left and right wheels of the vehicle; a gearbox (3) that is sandwiched between the left and right motors (1,2); and an inverter (4) that is arranged in a mounting space (S) over the left and right motors (1,2) and the gearbox (3). The gearbox (3) forms, in conjunction with respective motor housings (11,12) of the left and right motors (1,2), a depressed portion (8) depressed downward. The inverter (4) includes a cover (15) that is in a flat-plate shape, is attached to a tray unit (16), and covers the capacitor (5) and a semiconductor module (6) from above the capacitor (5) and the semiconductor module (6). The capacitor (5) is attached to a lower surface of the cover (15) and is arranged in the depressed portion (8). The semiconductor module (6) is attached to the lower surface of the cover (15) and is displaced from each of the capacitor (5) and the rotating shafts (C) of the motors (1,2) when seen from above.
B60L 15/00 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train
B60K 1/00 - Agencement ou montage des ensembles de propulsion électriques
B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
The disclosed vehicle drive device (10) includes: motor housings (11,12), a gearbox housing (13), an inverter case (14), and a PN line (9). The motor housings (11,12) form respective exteriors of a left motor (1) and a right motor (2) that drive left and right wheels of a vehicle with electric power of a battery. The gearbox housing (13) incorporates therein a gearbox (3) that amplifies torque of the left and right motors and that transmits the amplified torque to the left and right wheels, is sandwiched between the left and right motor housings (11,12), and is offset in a front-rear direction from the left and right motor housings (11,12). The inverter case (14) incorporates therein a pair of semiconductor modules (6,7) and is arranged above the left and right motor housings (11,12). The PN line (9) connects the battery to the semiconductor modules (6,7) from a lower surface side of the inverter case (14) so as to pass through a first space (41).
B60L 15/00 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train
B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
B60K 1/04 - Agencement ou montage des ensembles de propulsion électriques des dispositifs d'emmagasinage de l'énergie électrique pour la propulsion
B60L 50/51 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible caractérisée par des moteurs à courant alternatif
A vehicle drive device (10) includes: a motor unit (1) that includes a motor for driving mounted on a vehicle and a gear mechanism that transmits torque of the motor to each of left and right wheels of the vehicle; and an inverter (4) that is arranged over the motor unit (1) and that includes a capacitor (5) smoothing electricity and a semiconductor module (6) including a plurality of switching elements, wherein the inverter (4) includes a tray unit (16) that accommodates the capacitor (5) and the semiconductor module (6), and a cover (15) that is in a flat-plate shape, is attached to the tray unit (16), and covers the capacitor (5) and the semiconductor module (6) from above the capacitor (5) and the semiconductor module (6), the cover(15) is integrated with a cooling unit (20) through which a coolant for cooling the inverter (4) flows, and the capacitor (5) and the semiconductor module (6) are attached to a lower surface (17) of the cover (15).
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
B60L 15/00 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train
F16H 57/02 - Boîtes de vitessesMontage de la transmission à l'intérieur
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
69.
POWER CONVERSION SYSTEM AND FAULTY UNIT SEPARATION METHOD FOR POWER CONVERSION SYSTEM
The present invention makes it possible to separate a faulty detection cell from an SST-type power conversion system while suppressing overvoltage and overcurrent in the system. A system in which a plurality of power converter units (cells) provided with an AC/DC converter, an insulated DC/DC primary-side converter, and an insulated DC/DC secondary-side converter are provided, AC-side terminals of the cells are connected in series, and DC-side terminals of the cells are connected in parallel, wherein: a switch SWin for short-circuiting the AC-side terminals and a switch SWout for disrupting the DC-side parallel connection are provided; a short-circuit detection location of each converter in the cells is determined (step S11); after the gate of the short-circuit-detection-side converter is blocked (steps S12a, S12b), the gate of the non-short-circuit-detection-side converter is blocked (steps S13a, S13b); and then the AC-side switch SWin is turned on (step S14), and the DC-side switch SWout is turned off (step S15).
H02M 7/12 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
70.
CONTROL METHOD AND CONTROL DEVICE FOR FILTRATION MEMBRANE SYSTEM, AND FILTRATION MEMBRANE SYSTEM
This control method is for a filtration membrane system which comprises: a coagulant injection unit for injecting a coagulant into raw water; and a filtration membrane for obtaining filtered water by performing a filtration process on coagulation-treated water which is raw water containing an aggregate formed due to injection of the coagulant. The control method includes, as pretreatment prior to the filtration process with the filtration membrane, a control step for controlling the rate of injection of at least one of the coagulant and a pH adjustment agent so that the zeta potential of the aggregate falls within a target range corresponding to a material of the filtration membrane.
The purpose of the present invention is to improve a cooling structure for cooling a stator coil. According to the present invention, a stator core has a plurality of divided stator cores divided in an axial direction. The plurality of divided stator cores have: a first stator core having a first slot which constitutes a slot and a first flow path which is a flow path for a refrigerant, opens to the outside in the radial direction, does not open to the inside in the radial direction, and is not in communication with the first slot; a second stator core having a second slot which is in communication with the first slot in the axial direction and constitutes the slot and a second flow path which does not open to the outside in the radial direction, is in communication with the first flow path in the axial direction, and is in communication with the second slot; and a third stator core having a third slot which is in communication with the first slot or the second slot in the axial direction and constitutes the slot.
An oxide film forming method for forming an oxide film on a film formation surface of a target workpiece is provided. The method includes utilizing an oxide film forming device which includes a chamber in which a target workpiece is removably placed; a gas supply unit arranged at a position opposed to the film formation surface of the target workpiece placed in the chamber; and a gas discharge unit arranged to discharge a gas inside the chamber by suction. The gas supply unit has nozzles for supplying of raw material gas, ozone gas and unsaturated hydrocarbon gas with supply ports thereof opposed to the film formation surface of the target workpiece away from the film formation surface. Raw material gas, ozone gas and unsaturated hydrocarbon gas supplied from the respective supply nozzles are mixed in a space between the supply ports and the film formation surface.
C23C 16/455 - Revêtement chimique par décomposition de composés gazeux, ne laissant pas de produits de réaction du matériau de la surface dans le revêtement, c.-à-d. procédés de dépôt chimique en phase vapeur [CVD] caractérisé par le procédé de revêtement caractérisé par le procédé utilisé pour introduire des gaz dans la chambre de réaction ou pour modifier les écoulements de gaz dans la chambre de réaction
A rotary electric machine includes: a rotor; a shaft that penetrates the rotor along a rotation axis and is pivotally supported by a bearing; a stator accommodating the rotor inside; a rotor cover attached to an axial end surface of the rotor; and a casing having a flow passage for supplying oil to the bearing. The rotor cover has an oil receiving portion that forms a concentric clearance with respect to the shaft and receives the oil from the bearing in the clearance, and an oil distribution passage that communicates with the axial end surface of the rotor from the oil receiving portion. The rotary electric machine supplies the oil guided to the clearance to the oil distribution passage by centrifugal force to cool the rotor.
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
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 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
H02K 7/08 - Association structurelle avec des paliers
75.
Rotary electric machine with stator and oil injection port
A rotary electric machine includes: a rotor; a shaft that penetrates the rotor along a rotation axis and is pivotally supported by a bearing; a stator that has a cylindrical shape, accommodates the rotor inside, and has a coil wound around an inner peripheral side; a rotor cover attached to an axial end surface of the rotor; and a casing having a flow passage for supplying oil to the bearing. The rotor cover has an oil receiving portion that forms a concentric clearance with respect to the shaft and receives the oil from the bearing in the clearance. The oil receiving portion has an injection port for injecting the oil guided to the clearance toward an inner periphery of the coil by centrifugal force.
H02K 1/32 - Parties tournantes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
A jacking point structure disposed to project from a bottom surface of a vehicle and structured to be jacked up by a jacking device to provided. The jacking point structure includes a bottom including a jacking point surface structured to be lifted up first by the jacking device, and a partial contact surface disposed around the jacking point surface. The bottom of the jacking point structure may further include a curved surface between the jacking point surface and the partial contact surface.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
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
The purpose of the present invention is to improve the cooling structure of a rotating machine. This rotating machine has a rotor and a stator that faces the outside of the rotor in the radial direction across a gap. The stator has a stator coil and a stator core having a slot that houses the stator coil. The stator has a thin film member that covers at least a part of the inner circumferential surface of the stator core. The thin film member has a window part in which the stator core is exposed radially inward at the center in the axial direction and a cylindrical part covering the inner circumferential surface of the stator core on both sides of the window part in the axial direction. The thin film member has a radiation part extending radially outward from the cylindrical part along a side wall of the slot. The thin film member has a first flow path extending from the window part to the outside of the cylindrical part in the radial direction and extending to both ends in the axial direction along the radiation part.
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
79.
OVERHEAD WIRE FITTING ABNORMALITY DETECTING DEVICE AND METHOD
The objective of the present invention is to provide a technology capable of inexpensively and stably performing highly accurate abnormality detection. A device according to the present invention comprises a learning processing unit 132 which performs learning using a plurality of items of one-hot expression index image data in a normal state, generated by converting each pixel of image data generated by imaging an overhead wire fitting, which is a detection target, in a normal state, and a data processing unit 131 which generates one-hot expression index image data by converting each pixel of image data generated by imaging the overhead wire fitting that is the detection target, and performs abnormality determination using the one-hot expression index image data, wherein the data processing unit 131 performs the abnormality determination on the basis of a union set of an input image and an output image generated by a learning model that has been trained by the learning processing unit 132 from the input image, and a difference image between the input image and the output image.
This reverse force mechanism is combined with a device having a normal force and applies a reverse force to the same point of action, thereby adjusting the total operating force. A cam curved surface 14 is formed on a driving node 1, which, upon receiving a normal-force operating force F11 applied thereto from a device having a normal force, becomes movable in an axial direction in which the normal-force operating force F11 has been applied. A driven node 2 has a roller 13 that comes into contact with the cam curved surface 14 to apply contact pressure to the cam curved surface 14. The cam curved surface 14 is formed such that a gradient angle θ14, which is an angle formed by the axial direction of the normal-force operating force F11 and a tangent line of the cam curved surface 14 and the roller 13, changes depending on the position of the driving node 1. In addition, the cam curved surface 14 is formed such that a total operating force resulting from combining a reverse force, which is generated by the contact pressure and which changes according to the gradient angle θ14, and the normal-force operating force F11 becomes substantially constant. The reverse force mechanism realizes simplicity and downsizing, and improves the performance of a device having a normal force.
F16F 3/04 - Ensembles de ressorts constitués par plusieurs ressorts, p. ex. pour réaliser une caractéristique d'élasticité voulue avec ressorts en acier ou faits d'un autre matériau, ayant une friction intérieure faible composés uniquement de ressorts enroulés
This ozone water supply device (1) is provided with: an ozone water generation unit (2) which generates ozone water by receiving, in a gas-liquid mixer (21), a solvent and an ozone gas that has an ozone concentration of 50% by volume or more and an ozone partial pressure of 30 kPa (abs) or less; an ozone water supply unit (3) which discharges and supplies the ozone water to a supply-receiving object (S); and a miscible liquid supply unit (4) which discharges and supplies a temperature-raisable liquid to the supply-receiving object (S) by receiving a miscible liquid that is miscible with the ozone water. By simultaneously or alternately discharging the ozone water and the miscible liquid, the ozone water and the miscible liquid are mixed with each other at a discharge-receiving side unit (S1).
This electron beam emission structure 1 comprises an electron source 2 and a guard electrode 3. The electron source 2 emits an electron beam B at a target 4 of a field emission device. The guard electrode 3 is disposed on the periphery of the electron source 2. In the electron source 2, an end surface facing the target 4 constitutes an electron emission surface 20. The central portion of the electron emission surface 20 forms a curved concave surface 21, whereas the peripheral portion thereof forms a curved convex surface 22.
The purpose is to improve the cooling structure of a stator. The stator comprises: a stator coil having coil ends at both axial ends and extending in the axial direction; a first stator core having a first slot that accommodates one axial side of the stator coil; a second stator core arranged on the other axial side of the first stator core and spaced apart from the first stator core and having a second slot that accommodates the other axial side of the stator coil; a first frame member interposed between the first stator core and the stator coil that is accommodated in the first slot; and a second frame member interposed between the second stator core and the stator coil that is accommodated in the second slot.
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 9/02 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine
This rotating electric machine comprises a rotor, and a stator that has a plurality of slots in which a stator coil for generating magnetic force for the rotor is disposed, and that is disposed on an outer periphery of the rotor. The stator coil has a plurality of sets of coils disposed in adjacent slots in a circumferential direction, and connected to each other in parallel. Each of the plurality of sets of coils includes a segment in which conductors are lap-wound with a predetermined slot pitch. The segments are disposed spaced apart from each other in the circumferential direction with different slot pitches between the plurality of sets of coils. In the slots, the conductors of any coils are disposed in the form of a double-layer winding.
H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
This cleaning device (1) for a substrate (S) is provided with: an ozone water generation unit (2) that receives, in a gas-liquid mixer (21), a solvent and an ozone gas having an ozone concentration of 50% by volume or more and an ozone partial pressure of 30 kPa (abs) or less; an ozone water supply unit (3) that discharges and supplies the ozone water to the substrate (S); and an miscible liquid supply unit (4) that receives a miscible liquid having miscibility with the ozone water and discharges and supplies liquid of which temperature can be raised to the substrate (S). The ozone water and the miscible liquid are simultaneously or alternately discharged, thereby mixing the same at the discharged side part (S1).
This warming-up method for a chassis dynamometer system includes: a step for executing a warming-up operation for rotating a dynamometer over a predetermined warming-up period such that the rotational speed of a roller or a dynamometer is maintained at a predetermined warming-up set speed; a step for acquiring a force parameter value correlated with a force acting on the roller or the dynamometer in a stability determination period defined within the warming-up period; a step for calculating a segment average value of the force parameter value for each of a plurality of average calculation segments defined within the stability determination period; a step for calculating a difference value between the segment average values in two adjacent average calculation segments; a step for calculating a peak-to-peak value of the difference values within the stability determination period; and a step for determining a stability state of a warming-up target including at least the dynamometer on the basis of the peak-to-peak value.
This housing structure for a rotary electrical machine comprises a housing body in the form of a bottomed cylinder in which a cylindrical body portion and a bottom surface portion that closes the body portion on one side in the axial direction are integrally formed. A plurality of belt-shaped channels that allow cooling water to flow in the circumferential direction and are divided in the circumferential direction by axially extending partition walls are arranged in the interior of the body portion so as to form a ring shape. Each belt-shaped channel has an end portion on one side in the axial direction open and in communication with the outside of the housing body. The openings of the belt-shaped channels are covered and sealed by arc-shaped lid bodies from the outside of the bottom surface portion.
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
88.
VEHICLE INSPECTING DEVICE, AND METHOD FOR USING VEHICLE INSPECTING DEVICE
When a vehicle (3) is being loaded onto a chassis dynamometer (1), a front electric actuator (9aa) located on a vehicle front side of a vehicle front side centering device (2a) that performs centering of a front wheel (4a) is driven, and a support roller (15aa) of the front electric actuator (9aa) is raised to an assistance reference position. Since the chassis dynamometer (1) is capable of driving only one of front electric actuators (9a) and rear electric actuators (9b), support rollers (15a) and support rollers (15b) can be raised and lowered independently so as not to impede the loading and unloading of the vehicle (3), thereby enabling the loading and unloading of the vehicle (3) to be carried out smoothly.
In an inverter device 1, a pair of bus bars P and N are disposed along each other between a smoothing capacitor 2 and a power semiconductor module 3 and are connected to the smoothing capacitor 2 and the power semiconductor module 3. A heat sink 5 is disposed between the bus bars P and N along the bus bars P and N. Insulating members 6 are disposed between the bus bar P and the heat sink 5 and between the bus bar N and the heat sink 5. A part of the heat sink 5 is connected to a case 4 on which the power semiconductor module 3 is mounted.
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
90.
CURABLE COMPOSITION, CURED PRODUCT, METHOD OF PRODUCING CURED PRODUCT, AND APPARATUS FOR PRODUCING CURED PRODUCT
Provided is a curable composition containing a monofunctional acrylic monomer, a polyfunctional acrylic monomer, a polyfunctional acrylic-based oligomer, and a compound having a polyalkylene glycol structure. The compound having a polyalkylene glycol structure has a molecular weight of 1,500 or more, and a content of the compound having a polyalkylene glycol structure is 5 parts by mass or more to 15 parts by mass or less relative to 100 parts by mass of the total of the monofunctional acrylic monomer, the polyfunctional acrylic monomer, and the polyfunctional acrylic-based oligomer.
B29C 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p. ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p. ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
A shaft configured to suppress damage without having an increased diameter is provided. The shaft includes a supported portion supported by a bearing and an adjacent large-diameter portion larger in diameter than the supported portion and disposed closer to a center in an axial direction than the supported portion. The shaft is configured to rotate integrally with a rotor while holding the rotor. A sectional shape of a boundary portion between the supported portion and the large-diameter portion in a longitudinal section of the shaft is an arc shape that is, on an outer side in the axial direction with respect to a virtual rising point, recessed inward from an outer edge in the radial direction of the supported portion and raised outward in the radial direction from the outer edge, as the arc shape extends from the outer to an inner side in the axial direction.
H02K 7/00 - Dispositions pour la mise en œuvre d'énergie mécanique associées structurellement aux machines dynamo-électriques, p. ex. association structurelle avec des moteurs mécaniques d'entraînement ou des machines dynamo-électriques auxiliaires
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 7/08 - Association structurelle avec des paliers
92.
Chassis dynamometer system which can prevent a decline in responsiveness
r for generating a rear-wheel torque current command on the basis of the inputs Ffil_r and Fd. The load balance computation unit 62 causes the inputs Ffil_f and Ffil_r to change independently of one another, raises the input Ffil_f a rear-wheel drive force Fvr increases, and raises the input Ffil_r as a rear-wheel drive force Fvf increases.
The purpose of the present invention is to improve the degree of freedom of the bus ring and frame of a rotating electric machine. This stator structure comprises: a stator having a stator core and a stator coil wound around the stator core; a bus ring having a bus bar to which the stator coil is connected; a frame housing the stator core on the radially inner side and having a refrigerant liquid flow path that opens at one side end in the axial direction and extends toward the other side in the axial direction; a lid member disposed on one side of the frame in the axial direction and on the other side of the bus ring in the axial direction and sealing the opening of the flow path; and a holding structure holding the bus ring on the lid member.
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
The purpose of the present invention is to improve how freely a refrigerant liquid passage can be located in a frame of a rotary electric machine. A stator structure according to the present invention comprises: a stator that has a stator core and a stator coil that is wound on the stator core; a bus ring that has a busbar to which the stator coil is connected and has a larger outer diameter than that of the stator core; a frame that accommodates the stator core on the inside in the radial direction and has a refrigerant liquid passage that opens at one end in the axial direction and extends toward the other end in the axial direction; and a lid member that is positioned on one side of the frame in the axial direction and the other side of the bus ring in the axial direction, blocks the opening of the passage, and retains the bus ring. The lid member is fixed to the frame.
This cell multiplex inverter comprises: a plurality of cells cellu1 to cellw4 multiple-connected to the respective phases of an AC system AC in a star connection; and a gate command generation unit that generates gate commands for the switching elements of the plurality of cells. The cell multiplex inverter drives some of the plurality of cells as commercial frequency drive cells that perform one switching for one cycle of a commercial frequency or the output frequency and drives the remaining ones of the plurality of cells as high-frequency drive cells that drive at a higher frequency than the commercial frequency drive cells. In the gate command generation unit, the commercial frequency drive cells suppress the increase in the number of switching times when the slope of voltage command values is smaller than a slope threshold value and allow the increase in the number of switching times when the slope of the voltage command values is greater than the slope threshold value. In the cell multiplex inverter, the increase in the number of switching times in a steady condition is suppressed and overcurrent when a system voltage and/or the output current change abruptly is suppressed.
H02M 7/49 - Combinaison des formes de tension de sortie d'une pluralité de convertisseurs
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
96.
OZONE WATER GENERATION DEVICE AND GENERATION METHOD
While a solvent capable of dissolving ozone gas is being circulated through a circulation line (L2a), the temperature of the solvent is appropriately controlled, and the solvent is caused to flow into a gas-liquid mixer (21) to which the ozone gas is supplied under a freely selected supply pressure, thereby mixing and dissolving the ozone gas in the solvent. The gas-liquid mixer (21) is configured to include a solvent flow path through which the solvent flows, and an ozone gas introduction path that is provided by connection to the solvent flow path to introduce ozone gas supplied to the gas-liquid mixer (21) into the solvent flow path. The temperature of the solvent is controlled so that the vapor pressure of the solvent is lower than the supply pressure, and the ozone gas supplied to the gas-liquid mixer (21) is set to an ozone concentration of 50% by volume or more and an ozone partial pressure of 30 kPa (abs) or less.
B01F 21/20 - Dissolution utilisant le mélange à écoulement
B01F 23/23 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés
B01F 25/53 - Mélangeurs de circulation, p. ex. dans lesquels au moins une partie du mélange est évacuée d'un récipient et réintroduite dans celui-ci dans lesquels le mélange est évacué d’un récipient et réintroduit dans celui-ci par un tube de recirculation, dans lequel un composant supplémentaire est introduit
B01F 35/90 - Systèmes de chauffage ou de refroidissement
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
H01L 21/304 - Traitement mécanique, p. ex. meulage, polissage, coupe
A motor 1 includes a stator 3, a rotor 2, and a housing 52. The housing 52 includes a one-side space 52a, an other-side space 52b, a one-side communication hole 52c, and an other-side communication hole 52d. The one-side space 52a and the other-side space 52b communicate with each other via a gap G, the one-side communication hole is connected to a first airflow generator 64, and the other-side communication hole is connected to a second airflow generator 65. The motor 1 includes a forced inflow hole 52c1 connected to the first airflow generator 64 and a natural exhaust hole 52c2 through which air is naturally exhausted as the one-side communication hole, and includes a forced exhaust hole 52d1 connected to the second airflow generator 65 and a natural intake hole 52d2 through which air is naturally sucked into inside of the other-side space 52b as the other-side communication hole.
H02K 9/18 - Dispositions de refroidissement ou de ventilation dans lesquels l'agent de refroidissement gazeux circule entre l'enveloppe de la machine et une chemise extérieure dans lesquels la partie extérieure du circuit fermé comprend un échangeur de chaleur associé structurellement à l'enveloppe de la machine
H02K 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
H02K 21/14 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
This bidirectional isolated DC-DC converter comprises: a primary-side inverter INV1; a first DC cut capacitor C1 connected to the AC side of the primary-side inverter INV1; a secondary-side inverter INV2; a second DC cut capacitor C2 connected to the AC side of the secondary-side inverter INV2; a transformer Tr having a primary winding connected to the AC side of the primary-side inverter INV1, and a secondary winding connected to the AC side of the secondary-side inverter INV2; and a control unit that controls switching devices of the primary-side inverter INV1 and the secondary-side inverter INV2. The control unit determines an operation of the primary-side inverter INV1 and an operation of the secondary-side inverter INV2 so as to reduce an increase in voltage to be applied to leakage inductances L1, L2 of the transformer Tr, in accordance with failure states of the switching devices. In the bidirectional isolated DC-DC converter, a fault-tolerant operation is achieved without an additional element, and with high efficiency.
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
UVWUVW0d0q1d1q2d2q0d0qUVWUVWW*'. In this cell multiplexing inverter in which a plurality of cells are multiplexedly connected to each phase of an AC system through star connection, even when an imbalance has occurred in AC voltages or when an imbalance AC voltage is to be intentionally outputted, providing a cell to a corresponding phase or increasing a cell DC voltage only in the corresponding phase is no longer needed, and further, a common mode current is suppressed.
H02M 7/49 - Combinaison des formes de tension de sortie d'une pluralité de convertisseurs
H02J 3/26 - Dispositions pour l'élimination ou la réduction des asymétries dans les réseaux polyphasés
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
In the present invention, if the amplitude of a voltage command value of a certain phase is greater than the amplitude of a voltage command value of another phase, a corrected voltage command value generation unit superimposes, on the voltage command value, a sine wave of a phase opposite the certain phase as a zero-phase voltage, and if the amplitude of the voltage command value of the certain phase is smaller than the amplitude of the voltage command value of the other phase, the corrected voltage command value generation unit superimposes, on the voltage command value, a sine wave of the same phase as the certain phase as a zero-phase voltage. In a cell multiplex inverter in which a plurality of cells are star-connected to the phases of an alternating-current system in a multiplexed manner, the alternating-current output voltages of the cells can be equalized even if there is an imbalance in the alternating-current voltages or if unbalanced alternating voltages are to be output intentionally.
H02M 7/49 - Combinaison des formes de tension de sortie d'une pluralité de convertisseurs
H02J 3/26 - Dispositions pour l'élimination ou la réduction des asymétries dans les réseaux polyphasés
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
