Abrégé

A blower includes an impeller and a housing. The impeller is rotatable about a central axis. The housing accommodates the impeller. The housing includes a cylindrical wall portion extending along the central axis and covers the impeller from radially outside and including groove portions recessed in a radial direction from an inner circumferential surface of the cylindrical wall portion and arranged in a circumferential direction. A circumferential width of each of the groove portions decreases from an end portion on an upstream side in an air blowing direction of the impeller toward an end portion on a downstream side in the air blowing direction.

Classes IPC  ?

• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• F04D 19/00 - Pompes à flux axial spécialement adaptées aux fluides compressibles
• F04D 29/32 - Rotors spécialement adaptés aux fluides compressibles pour pompes à flux axial
• F04D 29/52 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes axiales

Abrégé

A motor broadly includes a rotor, a flywheel, and an encoder assembly. The rotor is rotatable about an axis and includes a rotor shaft. The flywheel is fixed to the rotor shaft and is rotatable with the rotor shaft. The encoder assembly includes a magnetic sensor assembly and a sensed magnetic element supported by the flywheel.

Classes IPC  ?

• H02K 11/215 - Dispositifs utilisant un effet magnétique, p. ex. des éléments à effet Hall ou magnéto-résistifs
• H02K 7/02 - Masses additionnelles pour augmenter l'inertie, p. ex. volants
• H02K 11/22 - Dispositifs optiques

Abrégé

This pump comprises: a rotor that can rotate about a central axis; a stator that is positioned radially outward of the rotor and that surrounds the rotor; a pump unit that is connected to one side in the axial direction of the rotor; an accommodation member that accommodates the rotor therein; and a bus bar assembly that includes a bus bar which is electrically connected to a coil provided to the stator, and a bus bar holder which holds the bus bar. The accommodation member includes: a lid part that covers the rotor from the other side in the axial direction; a cylindrical part that is positioned between the rotor and the stator in the radial direction, and that opens to the one side in the axial direction; and a bottom part that spreads radially outward from the cylindrical part, and that covers the stator from the one side in the axial direction. The stator has a stator core positioned radially outward of the cylindrical part. The bus bar assembly has a ground connection member held by the bus bar holder, and is positioned on the other side in the axial direction of the lid part. The ground connection member contacts a stator core.

Classes IPC  ?

• H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs
• F04D 29/60 - MontageAssemblageDémontage
• H02K 3/50 - Fixation des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant

Abrégé

This pump comprises a rotor, a stator that is positioned radially outward of the rotor and surrounds the rotor, a pump unit that is connected to one side of the rotor in the axial direction, an accommodation member that accommodates the rotor therein, and a fixed shaft that extends in the axial direction and supports the rotor in a rotatable manner. The accommodation member has a lid portion that covers the rotor from the other side in the axial direction, a first cylindrical portion that is positioned between the rotor and the stator in the radial direction and is open toward the one side in the axial direction, and a bottom portion that spreads radially outward from the first cylindrical portion and covers the stator from the one side in the axial direction. The lid portion holds an end portion of the fixed shaft on the other side in the axial direction. The stator has a stator core that is positioned radially outward of the first cylindrical portion. The stator core has an annular core back that surrounds the first cylindrical portion, and a plurality of teeth that extend radially inward from the core back and are provided at intervals in the circumferential direction. First ribs extending in the axial direction are provided to the radially outward surface of the first cylindrical portion. The first ribs are in contact with the radially inward surfaces of the teeth.

Classes IPC  ?

• H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs
• F04D 29/60 - MontageAssemblageDémontage

Abrégé

A motor with a motor body includes a rotor rotatable about a center axis extending in an axial direction and a stator opposing the rotor with a gap interposed therebetween, a housing accommodating the motor body, a cover covering the housing from a first side in the axial direction, a controller including an electronic component and accommodated between the housing and the cover, and a weight fixed to the cover.

Classes IPC  ?

• H02K 5/24 - EnveloppesEnceintesSupports spécialement adaptés pour la réduction ou à la suppression des bruits ou vibrations
• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes

Abrégé

A motor includes a rotor rotatable about a central axis extending in an axial direction, a stator including coil assemblies arranged in a circumferential direction, and a bus bar assembly including a bus bar to electrically connect end portions of the coil assemblies to each other. A rotor recessed portion recessed in the axial direction is defined in the rotor, and at least a portion of the bus bar is accommodated in the rotor recessed portion.

Classes IPC  ?

• H02K 3/50 - Fixation des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
• H02K 1/30 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor utilisant des pièces intermédiaires, p. ex. des croisillons
• H02K 7/08 - Association structurelle avec des paliers

Abrégé

One embodiment of a stator according to the present invention comprises a stator core and a winding part. The winding part has a plurality of conductor linking bodies. The conductor linking bodies that are of the same phase each include 2N first conductor linking bodies and 2N second conductor linking bodies, where N is a natural number. The conductor linking bodies are passed through a plurality of slots, wound in a plurality of turns in the circumferential direction from an input end to an output end, and transition to a layer on the inside in the radial direction every one turn. The input ends of the same phase are connected to each other, and the output ends of the same phase are connected to each other. The plurality of conductor linking bodies of the same phase are respectively passed through a plurality of slots arranged side by side in the circumferential direction, intersect each other and are interchanged in the arrangement thereof in the circumferential direction every one turn, and are passed through the slots.

Classes IPC  ?

• H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
• H02K 3/04 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre

Abrégé

A method of manufacturing a stator includes a pressing step of punching an iron core piece forming part from a steel sheet by press molding, a mounting step of mounting insulating paper on each of a plurality of protruding portions arranged in a circumferential direction on an outer peripheral surface of a columnar roll member rotating about a central axis and extending along the central axis, and a stacking step of spirally winding the iron core piece forming part around the outer peripheral surface of the roll member while deforming it in one direction in a width direction by rotating the roll member in a state where the protruding portion and the insulating paper are inserted into a slot, and stacking the iron core piece forming part in a thickness direction.

Classes IPC  ?

• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• 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 15/10 - Application d'un isolant sous forme solide à des enroulements, des stators ou des rotors, p.ex. application de rubans isolants

Abrégé

This blower device has a fan part and a housing part. The fan part has an impeller that rotates around a central axis. The housing part houses the fan part. Here, the housing part has a cylindrical wall part. The cylindrical wall part extends along the central axis and covers the impeller from the outside in a radial direction. The impeller has a plurality of blade parts disposed in a circumferential direction. A cutting mark is formed in at least a part of an inner peripheral surface of the cylindrical wall part facing the blade parts in the radial direction or in an outer end part in the radial direction of the blade parts.

Classes IPC  ?

• F04D 29/52 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes axiales
• F04D 29/38 - Ailettes

Abrégé

An optical member includes a light-transmissive member, a hard coat layer covering the light-transmissive member, and an antireflection layer covering the hard coat layer. The antireflection layer is configured such that the high refractive index films and the low refractive index films are alternately stacked. The high refractive index film contains Si3N4. The low refractive index film contains SiO2. The total number of films of the high refractive index films and the low refractive index films is an even number. For each of the high refractive index film and the low refractive index film in the antireflection layer, of two adjacent films, a ratio of thickness of a thick film to thickness of a thin film is six times or less. An average reflectance of the antireflection layer in a wavelength range of 300 to 400 nm is 40% or more.

Classes IPC  ?

• G02B 1/115 - Multicouches
• G02B 1/14 - Revêtements protecteurs, p. ex. revêtements durs
• G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles

Abrégé

In a motor, a rotor is supported by a bearing to be rotatable about a central axis extending in an axial direction. The rotor includes a rotor lid portion and a first protruding portion. The rotor lid portion extends in a radial direction. The first protruding portion protrudes in one axial direction from the rotor lid portion, extends along the central axis, and is rotatably supported by a bearing. The bearing has a cylindrical shape extending in the axial direction and surrounds the first protruding portion. A hole extending in another axial direction is located in an end portion in the one axial direction of the first protruding portion. An axial length of the hole is less than about half of an axial length of the first protruding portion.

Classes IPC  ?

• F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p. ex. pour la ventilation
• F04D 29/056 - Paliers

Abrégé

A stator of a multi-phase motor includes a lead-out portion including one or more adjacent slots. A winding is divided into phase windings corresponding to multiple phases. Each of the phase windings includes winding portions wound around a tooth, a connecting wire connecting the winding portions, and a starting end portion and a terminating end portion where both terminals of the phase winding are led out. At least one of the phase windings includes a first winding portion wound around the tooth farther on one side in a circumferential direction than the lead-out portion, a second winding portion wound around the tooth farther on another side in the circumferential direction than the lead-out portion, and a first connecting wire connecting the first winding portion and the second winding portion on one side in an axial direction of the lead-out portion.

Classes IPC  ?

• H02K 3/50 - Fixation des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
• B64U 50/19 - Propulsion utilisant des moteurs électriques

Abrégé

A laminated core includes a first connecting portion and a first groove. The first connecting portion connects back yoke portions in the stacking direction on an outer peripheral surface of a portion of a back yoke staked portion, the portion including an end portion on one side in the extending direction of an iron core piece. The first groove is located in a direction opposite to a first direction that is a direction from one side edge toward the other side edge in the iron core piece across the one side edge in the extending direction of the iron core piece with respect to the first connecting portion, and extends in the stacking direction of the back yoke stacked portion on the outer peripheral surface of the back yoke stacked portion.

Classes IPC  ?

• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques

Abrégé

This lens unit includes a first lens disposed on a subject side, and a second lens disposed on an imaging surface side. The first lens and the second lens are disposed in a direction of an optical axis. The first lens and the second lens are in contact with each other at least at three or more locations and are in contact with each other outside optically effective regions of the lenses. In the lens unit, a cross section of a portion where at least one of the first lens and the second lens contacts the other of the first lens and the second lens, the cross section being taken along a plane including the optical axis and the portion, has a convex shape toward the other lens.

Classes IPC  ?

• G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
• G03B 30/00 - Modules photographiques comprenant des objectifs et des unités d'imagerie intégrés, spécialement adaptés pour être intégrés dans d'autres dispositifs, p. ex. des téléphones mobiles ou des véhicules

Abrégé

A motor control device according to one aspect of the present disclosure comprises an inverter circuit, an energization control unit, and a determination unit. The inverter circuit has an upper arm and a lower arm for each of three phases. The energization control unit controls energization of the upper arm and the lower arm of each of the three phases of the inverter circuit. The determination unit determines switching from a 120-degree energization mode in which two phases among three phases are energized phases and the remaining one phase is a non-energized phase to a three-phase modulation antiphase mode in which the three phases are PWM phases that are PWM-controlled, and one of the three phases and the other two phases are PWM-controlled in antiphase in which the phases of energizing waveforms that turn on and off the upper arm are different from each other. The energization control unit includes a switching compensation unit that matches the on and off states of the upper arm and the lower arm of the two energized phases before and after the switching from the 120-degree energization mode to the three-phase modulation antiphase mode determined by the determination unit, and, when two PWM phases respectively corresponding to the energized phases are in phase with each other, performs PWM control in antiphase to the two PWM phases for the PWM phase corresponding to the non-energized phase.

Classes IPC  ?

• 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

Abrégé

A motor includes a rotor and a stator. The rotor includes a shaft extending in the axial direction of the central axis, and a rotor core having a shaft insertion hole into which the shaft is inserted. The motor has a fan that is fixed to the shaft or the rotor core at a position axially outside the rotor core and rotates together with the rotor core. The rotor core has an air passage. The shaft has a shaft inner passage. The air passage includes a first rotor core opening opened to an axial end surface of the rotor core and a second rotor core opening opened to an inner surface of the shaft insertion hole. The shaft inner passage includes a first shaft opening opened at a position on the axially outer side with respect to the fan, and a second shaft opening opened at a position connected to the second rotor core opening.

Classes IPC  ?

• H02K 1/32 - Parties tournantes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]

Abrégé

Provided are: an on-vehicle lens having a resin as a main component and a transparent base member, wherein a hard coat layer and an antireflection layer are provided on at least one surface of the base member, the antireflection layer is provided on the side opposite to the base member with respect to the hard coat layer, the region from a lens effective diameter to an edge part in the base member is defined as an effective diameter outer region, and the antireflection layer is covered with a functional film for absorbing ultraviolet rays in the effective diameter outer region; a lens unit having the on-vehicle lens; and a camera module having the lens unit.

Classes IPC  ?

• G02B 5/22 - Filtres absorbants
• G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
• G02B 1/11 - Revêtements antiréfléchissants
• G02B 1/14 - Revêtements protecteurs, p. ex. revêtements durs
• G02B 1/18 - Revêtements pour garder des surfaces optiques propres, p. ex. films hydrophobes ou photocatalytiques
• G02B 3/00 - Lentilles simples ou composées
• G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
• G03B 15/00 - Procédés particuliers pour prendre des photographiesAppareillage à cet effet

Abrégé

A motor includes a main body portion, including a rotor and a stator, a case including a bottom and an opening, and accommodating the main body portion, a busbar assembly, which is located on an axially upper side of the main body portion, and a cover portion, which is located on an axially upper side of the busbar assembly and covers the opening of the case. An upper surface of the busbar assembly is provided with a groove. A first through hole opposite to the groove in an axial direction is defined in the cover portion, and the motor is connected to an external device through the groove and the first through hole. The motor is connected to the external device through the groove and the first through hole, so that a portion of the external device can be accommodated in the busbar assembly.

Classes IPC  ?

• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes

Abrégé

A stator core includes a tooth portion having a first core and a second core that is connected to a radially inner side of the first core. In at least one slot between the tooth portions adjacent to each other in the circumferential direction, the first core includes a first umbrella portion at a radially inner end portion, the first umbrella portion being located on both sides in the circumferential direction of the slot and protruding in the circumferential direction, and the second core includes a second umbrella portion at a radially inner end portion, the second umbrella portion being located on both sides in the circumferential direction of the slot and protruding in the circumferential direction.

Classes IPC  ?

• H02K 3/487 - Dispositifs de fermeture d'encoche
• H02K 15/00 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques

Abrégé

In an electronic device, one end of a cable is on one side end surface in a third direction of a substrate extending in first and second directions. The cable includes a conductive wire, an insulating portion, and an opening portion. The conductive wire extends in the first direction. The opening portion is on the other end surface in the third direction of the insulating portion and opens at least to the other side in the third direction. One side end portion in the first direction of the conductive wire is drawn from the insulating portion to one side in the first direction, and is connected to the one side end surface in the third direction of the substrate. At least a portion of an adhesive on the one side end surface in the third direction of the substrate is in the opening portion.

Classes IPC  ?

• H01R 12/62 - Connexions fixes pour circuits imprimés flexibles, câbles plats ou à rubans ou structures similaires se raccordant à des circuits imprimés rigides ou à des structures similaires
• H01B 7/08 - Câbles plats ou à ruban
• H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures

Abrégé

The present invention comprises: a rotor that can rotate about the central axis; a stator that has a stator core that faces the rotor via a gap in the radial direction; and a guide member that is disposed on one side of the stator core in the axial direction and that supplies a refrigerant in the circumferential direction. The stator core is provided with a plurality of stator flow paths which penetrate the stator core in the axial direction and through which the refrigerant flows. Each of the plurality of stator flow paths is disposed at a position different from each other in the circumferential direction. The guide member has a connection flow path part connecting the plurality of stator flow paths and is constituted by a plurality of flow path members stacked in the axial direction.

Classes IPC  ?

• 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 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages

Abrégé

A motor includes a stator core and a busbar assembly on an axial side of the stator core, the busbar assembly includes a busbar holder and busbars each partially embedded into the busbar holder, each busbar includes a claw portion exposed from the busbar holder, teeth of the stator core are insulated from a coil wound on the teeth through an insulator, the busbar holder includes an annular main body portion, and the main body portion is radially opposite to the insulator. By arranging the main body portion of the busbar holder to be radially opposite to the insulator, the busbar holder does not occupy an additional axial dimension, thus reducing an axial length of the motor and miniaturizing the motor.

Classes IPC  ?

• H02K 3/50 - Fixation des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• 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

Abrégé

A conveyor assembly includes a conveyor module including first and second roller bodies and a conveyor belt; a chassis; and a tensioning system. The tensioning system is operable to adjust the tension of the conveyor belt and includes a tensioning device selectively shiftably mounted to the chassis such that shifting of the tensioning system in the fore-aft direction along the chassis results in corresponding fore-aft shifting of the first roller body relative to the second roller body, thereby facilitating adjustment of the tension of the conveyor belt. The chassis includes a pair of side rails and a slider bed. A stiffening assembly includes a bracket spaced vertically below the slider bed such that a vertical gap is formed between the slider bed and the bracket. The stiffening assembly further includes an insert disposed on the bracket and extending upward across at least a portion of the gap.

Classes IPC  ?

• B65G 23/44 - Dispositifs de tension des courroies ou des chaînes
• B65G 21/14 - Châssis ou carters de support ou de protection pour transporteurs sans fin ou éléments de traction des transporteurs à courroies ou à chaînes mobiles ou à pièces interchangeables ou relativement mobilesDispositifs pour déplacer le châssis ou des parties de celui-ci pour permettre le réglage de la longueur ou du profil des porte-charges ou de l'élément de traction
• B65G 21/22 - Rails ou éléments analogues d'engagement à glissières ou à rouleaux fixés aux porte-charges ou aux éléments de traction
• B65G 23/08 - Tambours, rouleaux ou roues avec mécanismes d'entraînement formant un tout complet, p. ex. moteurs et transmissions associés
• B65G 41/00 - Châssis ou bases de support pour transporteurs dans leur ensemble, p. ex. châssis transportables

Abrégé

A power converter includes: a conversion circuit for conversion between DC power and N-phase AC power (N33); and a control unit controlling 2N switches. The control unit periodically switches between a first PWM mode in which a high-side or a low-side switch of one phase among the 2N switches is turned on and the switches of the remaining phases are controlled by PWM, and a second PWM mode in which the switches of all phases among the 2N switches are controlled by PWM. The sum of the first period of the first PWM mode and the second period of the second PWM mode is shorter than 1/2N of one electrical angle cycle of the AC waveform of the AC power. The first period is equal to or longer than one cycle of PWM. The ratio of the first period to the sum of the first and second periods is variable.

Classes IPC  ?

• H02M 7/5387 - 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 utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont

Abrégé

One aspect of an autonomous traveling device includes: a recognition unit that recognizes an obstacle for each of right and left regions sandwiching a body of the autonomous traveling device; a direction calculation unit that calculates a direction along the obstacle for each of the right and left regions; and a deviation control unit that causes the body to move away from the obstacle by combining a rotational movement that changes orientation of the body toward an intermediate direction of each of the directions calculated by the direction calculation unit and a backward movement that causes the body to move backward.

Classes IPC  ?

• G05D 1/622 - Évitement d’obstacles
• G05D 1/246 - Dispositions pour déterminer la position ou l’orientation utilisant des cartes d’environnement, p. ex. localisation et cartographie simultanées [SLAM]
• G05D 105/20 - Applications spécifiques des véhicules commandés pour le transport

Abrégé

A rotor according to one aspect of the present invention is a rotor that is provided to a rotating electrical machine, opposes a stator, and rotates about a central axis line. The rotor includes: a plurality of magnetic pole parts lined along a circumferential direction centered on the central axis line; and a rotor core that supports the magnetic pole parts from one side of a radial direction. The magnetic pole part includes a main magnet whose magnetization direction is the radial direction; and secondary magnets whose magnetization directions are directions tilted in a circumferential direction with respect to the radial direction, the secondary magnets being disposed symmetrically with each other on an outer side of the main magnet in the circumferential direction. At least some of side faces of the secondary magnet extending in the axial direction are flat faces that are parallel or orthogonal to the magnetization direction.

Classes IPC  ?

• H02K 1/2783 - Aimants montés en surfaceAimants sertis le noyau étant muni d’aimants disposés en réseaux de Halbach

Abrégé

A motor control device includes a model following controller to generate a correction torque based on an output from a control target that is a motor, and correct an input to the control target with the correction torque. A model following controller includes a high-pass filter with a first cutoff frequency and a low-pass filter with a second cutoff frequency larger than the first cutoff frequency, and is configured or programmed so that a transfer function of a control target is constrained to a nominal model in a frequency band in which a gain in a gain characteristic of Q(s)·HPF(s) is 1 where Q(s) is a transfer function of the low-pass filter and HPF(s) is a transfer function of the high-pass filter.

Classes IPC  ?

• B62D 5/04 - Direction assistée ou à relais de puissance électrique, p. ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci

Abrégé

One embodiment of the gate drive circuit according to the present invention drives a switching element and comprises: a charging circuit that charges the input capacitance of a switching element by applying a gate voltage to the gate terminal of the switching element; and a discharging circuit that discharges the input capacitance. The charging circuit has: a first charging path having a series circuit in which a first switch and an inductor are connected in series between a first terminal and a first node; and a second charging path in which a second switch is connected between the first terminal and the first node. When the switching element is turned on, charging is performed through the first charging path after charging through the second charging path. The discharging circuit has a configuration in which a path through which the discharge current flows from the gate terminal is switched between a first discharging path and a second discharging path having a resistance value higher than that of the first discharging path.

Classes IPC  ?

• H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
• H02M 1/00 - Détails d'appareils pour transformation
• 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

Abrégé

A motor includes a rotor, a stator, a casing accommodating the rotor and the stator and including an opening in an axial end, an upper bus bar assembly including an upper bus bar holder mounted on an edge of the opening of the casing and an upper bus bar (including an upper bus bar terminal) held on the upper bus bar holder, and a lower bus bar assembly including a lower bus bar holder located on an axially lower side of the upper bus bar holder and a lower bus bar (including a lower bus bar terminal) held on the lower bus bar holder. The upper bus bar terminal and the lower bus bar terminal are electrically connected inside the casing.

Classes IPC  ?

• H02K 11/00 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection
• H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
• 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 19/02 - Moteurs synchrones

Abrégé

A control device controls an N-phase inverter that applies voltage to each of N phases when N is an odd number of three or more. The control device includes a current detection unit and a calculation unit. When a phase to which (N+1)/2-th largest voltage is applied at a current detection time among voltages applied to the N phases is defined as an intermediate phase, the current detection unit detects current of each of the (N−1) phases other than the intermediate phase among currents of the N phases. The calculation unit calculates a current value of current in the intermediate phase based on a detection result of the current detection unit.

Classes IPC  ?

• 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

Abrégé

A blower includes a motor having a shaft and a stator, an impeller connected to and rotating about the shaft, a first housing between the motor and impeller, and a second housing opposite to the first housing across the motor. The second housing includes a bearing holding portion holding a bearing of the shaft, a stator holding portion outside the bearing holding portion and holding the stator, and a coupling portion coupling the bearing holding portion and stator holding portion. The dimension in the axial direction of the shaft is a first dimension and the dimension in the circumferential direction of the shaft is a second dimension among dimensions of the end portion of the coupling portion on the bearing holding portion side. The first dimension is smaller than the second dimension. A portion of the coupling portion has a dimension in the axial direction smaller than the first dimension.

Classes IPC  ?

• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• A47L 5/22 - Caractéristiques de structures des aspirateurs à pompes à air ou compresseurs à moteur, p. ex. fonctionnant par le vide créé par le moteur d'un véhicule à ailettes rotatives

Abrégé

A motor includes a rotor, a stator, and a labyrinth portion. The rotor is rotatable about a central axis extending in an axial direction. The stator includes a stator core. In the stator core, a labyrinth portion in which coils arranged in a circumferential direction are located includes a pair of metal cylindrical portions surrounding the central axis. The pair of metal cylindrical portions includes a pair of opposing surfaces that oppose each other in a radial direction with a gap therebetween, and one of the opposing surfaces surrounds the other.

Classes IPC  ?

• H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p. ex. de l'eau ou des doigts
• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 5/15 - Montage des flasques-paliers ou des plaques d'extrémité
• H02K 7/08 - Association structurelle avec des paliers

Abrégé

A rotor rotatable about a central axis extending in an axial direction includes a yoke that is a cylindrical magnetic body extending in the axial direction. A plurality of ridge portions of the yoke are connected to one axial end of the yoke cylindrical portion in a cylindrical shape and extending in the axial direction, and are arranged at intervals in the circumferential direction. In each ridge portion, a protrusion protrudes radially inward from one axial end of the yoke cylindrical portion. Further, an extension extends in the other axial direction from the radially inner end of the protrusion along the radially inner surface of the yoke cylindrical portion. A magnet is located between the extensions adjacent to each other in the circumferential direction. The ridge portion is integral with the yoke cylindrical portion to define a single structure.

Classes IPC  ?

• H02K 1/2791 - Aimants montés en surfaceAimants sertis
• H02K 1/30 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor utilisant des pièces intermédiaires, p. ex. des croisillons
• H02K 15/03 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques comportant des aimants permanents
• H02K 21/22 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant autour des induits, p. ex. volants magnétiques

Produits et services

“AC and DC electric motor control systems (drive systems) and services, industrial machinery diagnostic, data management and productivity equipment, and software, and any related or similar equipment and pulse generators (encoders) for industrial motor or motion control. In addition pulse generators (encoders) sold individually for aerospace applications are included in Industrial Automation Products.

Abrégé

A flight vehicle includes a driver, a battery, a main body, a leg, and an annular power receiving coil. The driver is operable to rotate a rotor blade about a rotation axis. The battery is chargeable/dischargeable and supplies power to the driver. The main body accommodates the battery. The leg supports the main body during landing. The power receiving coil is electrically connected to the battery. The leg includes a landing portion that contacts the landing surface during landing. At the time of landing, the central axis of the power receiving coil extends parallel or substantially parallel to a normal direction of the landing surface. The power receiving coil is located on or in the landing portion.

Classes IPC  ?

• B64U 50/38 - Chargement en période hors vol par transmission sans fil
• B60L 50/60 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de l'énergie fournie par des batteries
• B60L 53/126 - Procédés pour associer un véhicule et une station de charge, p. ex. en établissant une relation directe entre un transmetteur d'énergie sans fil et un récepteur d'énergie sans fil
• B64U 101/60 - Véhicules aériens sans pilote spécialement adaptés à des utilisations ou à des applications spécifiques au transport de passagersVéhicules aériens sans pilote spécialement adaptés à des utilisations ou à des applications spécifiques au transport de marchandises autres que des armes
• H02J 50/12 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif du type couplage à résonance

Abrégé

An aspect of a signal generation device of the present invention includes a processing device that calculates angle information indicating a mechanical angle of a rotary shaft, and generates a first signal in which a waveform of one electrical angle cycle appears N times (N is an integer of one or more) in one mechanical angle cycle, and a second signal different in phase by 90 degrees in electrical angle from the first signal, based on a calculation result of the angle information.

Classes IPC  ?

• G01B 7/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer des angles ou des cônesDispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour tester l'alignement des axes
• B66B 1/34 - Systèmes de commande des ascenseurs en général Détails
• G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension

Abrégé

One embodiment of an actuator according to the present invention is provided in a steer-by-wire type steering device mounted in a vehicle, and generates a steering reaction force on a steering wheel of the vehicle. The actuator is provided with a motor for generating the steering reaction force, around a central axis, in the steering wheel. The motor has a rotor and a stator. The stator is disposed facing the rotor in the axial direction. In the actuator according to the present invention, a speed reduction mechanism is not provided between the motor and the steering wheel.

Classes IPC  ?

• B62D 5/04 - Direction assistée ou à relais de puissance électrique, p. ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci

Abrégé

A control device that controls a steering mechanism mounted on a vehicle includes a first assist controller to execute lane keeping control and generate a first input value. The first assist controller includes a vehicle state calculator to calculate a yaw rate target value and lateral displacement, a yaw rate controller to generate a yaw rate command value based on the yaw rate target value, and a lateral displacement controller to generate a lateral displacement command value based on the lateral displacement. The yaw rate controller includes a yaw rate adjuster to adjust the yaw rate command value according to a frequency. The lateral displacement controller includes a lateral displacement adjuster to adjust the lateral displacement command value according to a frequency.

Classes IPC  ?

• B62D 15/02 - Indicateurs de direction ou aides de direction
• B62D 6/00 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p. ex. circuits de commande

Abrégé

A motor control device that controls a motor includes a calculator to calculate angle information related to a rotation angle of a rotor of the motor based on an output from a magnetic sensor, and a corrector to correct the angle information calculated by the calculator. The magnetic sensor is a sensor that includes a magnetoresistance effect element and outputs signals of two systems out of phase with each other by 180°. The corrector corrects the angle information using a correction amount expressed by a function including a current value of a motor current supplied to a stator of the motor and a phase angle of the motor current, a current value of a power source current supplied to the motor control device, and a mechanical angle of the rotor calculated based on an output from the magnetic sensor.

Classes IPC  ?

• H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ
• 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 11/01 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection pour le blindage contre les champs électromagnétiques
• H02K 11/215 - Dispositifs utilisant un effet magnétique, p. ex. des éléments à effet Hall ou magnéto-résistifs
• H02K 11/30 - Association structurelle à des circuits de commande ou à des circuits d’entraînement
• H02P 21/06 - Commande basée sur le flux rotorique impliquant l’utilisation de détecteurs de position ou de vitesse du rotor
• H02P 21/14 - Estimation ou adaptation des paramètres des machines, p. ex. flux, courant ou tension
• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande

Abrégé

A refrigerant circulation device includes a primary flow path serving as a flow path of a primary refrigerant, a secondary flow path serving as a flow path of a secondary refrigerant, a heat exchanger connected to the primary flow path and the secondary flow path, a pump connected to the secondary flow path, and a housing including an accommodation region extending in a first direction and a second direction intersecting each other and having a dimension longer in the first direction than in the second direction. The housing accommodates the primary flow path, the secondary flow path, the heat exchanger, and the pump in the accommodation region. An entirety of the heat exchanger is positioned on one side in the second direction relative to the pump.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

One embodiment of the motor according to the present invention is a motor which is provided to a steer-by-wire type steering device installed in a vehicle and which generates a steering reaction force in a steering wheel of the vehicle, the motor comprising: a rotor that can rotate around a central axis; a stator that faces the rotor with a gap therebetween; and a bearing that rotatably supports the rotor. The rotor has a motor shaft that extends in the axial direction of the central axis and a rotor body that is fixed to the motor shaft. The stator is disposed so as to face the rotor body in the axial direction and has an annular shape surrounding the motor shaft. At least part of the bearing is located inwardly of the stator in the radial direction.

Classes IPC  ?

• B62D 5/04 - Direction assistée ou à relais de puissance électrique, p. ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci

Abrégé

One embodiment of this motor is to be provided to a steer-by-wire steering device that is installed on a vehicle. The motor generates steering reaction force at a steering wheel of the vehicle and comprises a rotor that can rotate around a center axis and a stator that is opposite the rotor with a gap therebetween. The rotor has a motor shaft that extends in the axial direction of the center axis and a rotor body that is fixed to the motor shaft. The stator is provided opposite the rotor body in the axial direction. The motor shaft is directly connected to the steering wheel.

Classes IPC  ?

• B62D 5/04 - Direction assistée ou à relais de puissance électrique, p. ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci

Abrégé

A motor includes a rotor, a stator, and a casing. The stator includes an iron core and a resin portion covering the iron core. The resin portion includes an abutting portion to abut against a bottom of the casing on one axial side in the casing. The abutting portion is connected in a ring shape around the entire circumference of a central axis, and is closer to a radially inner side than a radially central position of the stator. There is a gap between one axial side of the stator and the casing in the axial direction, and the gap defines a first space. The abutting portion is located on a radially inner side of the first space. The motor is able to prevent debris from invading the rotor.

Classes IPC  ?

• H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p. ex. de l'eau ou des doigts

Abrégé

An electric power unit accommodates an electric motor in a first portion of a housing, and an inverter in a second portion of the housing. An upper surface opening portion of the second portion is covered with an inverter cover having a flat plate shape. A first region, a second region, and a third region sandwiched between the first region and the second region are formed on an upper surface of the inverter cover. A first connection portion is arranged in the first region. Second connection portions are arranged in the second region. A plurality of ribs are arranged in parallel in the third region. The first rib having one longitudinal end portion connected to the first connection portion and the second rib connected to the second connection portions are arranged in a direction in which the first rib and the second rib are arranged in parallel.

Classes IPC  ?

• H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
• H02K 5/18 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des nervures ou des ailettes pour améliorer la transmission de la chaleur
• H02K 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

Abrégé

A joint assembly includes a joint including a flow path penetrating therethrough, and a fixing portion to which the joint is attached. The joint includes at least two mounting portions to which a tube is mounted, and an intermediate portion located between the at least two mounting portions. The fixing portion extends in a first intersecting direction intersecting the flow path and abuts on the intermediate portion.

Classes IPC  ?

• F28F 9/02 - Boîtes de distributionPlaques d'extrémité
• F16L 39/02 - Raccords ou accessoires de raccordement pour tuyaux à double paroi ou à canaux multiples ou pour assemblages de tuyaux pour manches

Abrégé

An electric motor includes a stator assembly. The stator assembly includes a stator body and a generally toroidal stator ring. The stator body includes a core and a plurality of electrically conductive wires wound about the core. Each of the electrically conductive wires includes a first wire end projecting from the stator body at a predetermined first wire end location. The stator ring defines a plurality of arcuately spaced apart first terminal pockets, each configured to receive a wire-connecting terminal. The stator ring is oriented relative to the stator body such that the first terminal pockets are disposed in predetermined first terminal pocket positions correlating to the predetermined first wire end locations. Each of the first wire ends extends into a respective one of the first terminal pockets.

Classes IPC  ?

• H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 3/34 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement entre conducteurs ou entre conducteur et noyau, p. ex. isolement d'encoches
• H02K 3/50 - Fixation des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes

Abrégé

According to the present invention, a stator core, a coil part, and a circuit board of a motor are accommodated in a lidded cylindrical cover member and are covered with a covering member that fills the inside of the cover member. A guide part of the cover member is disposed at an end part on one side in the axial direction of a board accommodation part that surrounds and thereby accommodates the circuit board. A lead wire is led from the circuit board to the outside of the cover member, and the guide part accommodates the lead wire and guides the lead wire to the outside in the radial direction. An end part on the inside in the radial direction of a side wall part of the guide part is connected to the end part on the one side in the axial direction of the board accommodation part. An end part on the one side in the axial direction of the side wall part is positioned further to the one side in the axial direction than the end part on the one side in the axial direction of the board accommodation part.

Classes IPC  ?

• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes
• F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p. ex. pour la ventilation
• H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p. ex. de l'eau ou des doigts

Abrégé

A substrate of this motor is disposed on one side of a stator in an axial direction and widens in a direction crossing a center axis. A heat dissipation member is disposed between the stator and the substrate. The stator has a first housing and a second housing. The first housing has a lid-equipped cylindrical shape that opens toward one side in the axial direction and surrounds a stator core. The second housing is connected to the first housing and sandwiches the stator core between the second housing and the first housing in the axial direction. The heat dissipation member is in contact with the second housing and a circuit element mounted on the other end surface of the substrate in the axial direction.

Classes IPC  ?

• H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
• A47L 9/00 - Parties constitutives ou accessoires des aspirateurs, p. ex. moyens mécaniques pour commander l'aspiration ou pour entraîner une action de battementDispositifs de rangement spécialement conçus pour les aspirateurs ou les pièces de ceux-ciVéhicules porteurs spécialement conçus pour les aspirateurs
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs

Abrégé

This multi-motor system comprises a host device and a plurality of motor units. The plurality of motor units communicate with the host device. Each of the plurality of motor units is assigned an identifier for enabling unique identification of the relevant motor unit within a communication network. The communication network includes the host device and the plurality of motor units. Each of the plurality of motor units has a motor, a storage device, and a communication circuit. The storage device stores the identifier. The communication circuit transmits the identifier to the host device.

Classes IPC  ?

• H04L 61/5076 - Mécanismes de mise à jour ou de notification, p. ex. DynDNS

Abrégé

A synchronous reluctance motor includes magnetic barriers in each magnetic barrier group of a rotor core, each having a shape which protrudes toward a radial inner side and is symmetrical about a q-axis. A portion closer to a circumferential side than the q-axis includes a first portion extending perpendicular to the q-axis and a second portion extending farther toward the circumferential side from a circumferential side of the first portion and radially outward, and the first portions of the magnetic barriers in each magnetic barrier group have the same radial dimension. The first portions of the magnetic barriers other than the radial outermost magnetic barrier have the same circumferential dimension, which is the same as or twice a circumferential dimension of the first portion of the radial outermost magnetic barrier.

Classes IPC  ?

• H02K 1/2706 - Rotors internes
• H02K 19/06 - Moteurs ayant un stator bobiné et un rotor en fer doux à réluctance variable, sans bobinage, p. ex. moteurs à fer tournant

Abrégé

A rotary electric machine includes: a rotor having a shaft extending in an axial direction and rotor magnets arranged along a circumferential direction; a stator having a coil and surrounding the rotor; a housing supporting the stator; a pair of magnetic bearings on opposite sides in the axial direction of the rotor magnet; and a position adjusting member held by the housing. The stator holds the rotor rotatably in the axial direction by a field current flowing through the coil. The magnetic bearing includes a cylindrical inner magnet fixed to the rotor and a cylindrical outer magnet fixed to the housing and surrounding the inner magnet, and holds the rotor rotatably in the radial direction. The rotor has a stepped surface facing the axial direction. The position adjusting member has an opposing surface facing the stepped surface, and is movable in the axial direction with respect to the housing.

Classes IPC  ?

• H02K 21/02 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents Détails
• H02K 7/09 - Association structurelle avec des paliers avec des paliers magnétiques

Abrégé

A sensor holder for an electrical motor controller. The sensor holder is configured for holding a sensor relative to a printed circuit board of an electrical motor controller. The sensor holder includes a body having a first side and a second side; and a retainer coupled to the first side and extending away from the first side and comprising a base coupled to the first side. Furthermore, the sensor holder includes an arm coupled to the base and extending away from the base wherein the base and arm are configured to receive the sensor. A spacer is coupled to the first side and configured to form a space between the sensor and the first side. Moreover, a support is coupled to the body and extending away from the body and coupled to the printed circuit board to position the retainer and the received sensor away from the printed circuit board.

Classes IPC  ?

• G01D 11/30 - Supports spécialement adaptés à un instrumentSupports spécialement adaptés à un ensemble d'instruments
• 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 11/30 - Association structurelle à des circuits de commande ou à des circuits d’entraînement

Abrégé

Embodiments of the present application provide a rotor and a motor. The rotor has a plurality of through-hole groups. Each through-hole group has a plurality of through-holes distributed in a radial direction. The rotor also has auxiliary holes. Each auxiliary hole is located between every two radially adjacent through-holes. A sectional area of each auxiliary hole is less than a sectional area of each through-hole. When a first angle, a second angle and a third angle are defined between three portions of each auxiliary hole and the q-axis respectively, the third angle is greater than or equal to the first angle, and the third angle is less than or equal to the second angle.

Classes IPC  ?

• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]

Abrégé

This base plate constitutes a part of a housing of a disk drive device, and is formed from a metal plate and a die-cast part. The metal plate includes a board-shaped bottom plate portion that spreads out perpendicular to an up-down extending axis of rotation of a disk. The die-cast part covers at least a part of the bottom plate portion. Metal which constitutes the bottom plate portion is higher in rigidity than metal which constitutes the die-cast part.

Classes IPC  ?

• G11B 5/53 - Disposition ou montage des têtes sur le support rotatif
• H02K 5/06 - Enveloppes en métal coulé
• H02K 15/14 - EnveloppesEnceintesSupports

Abrégé

A motor control device includes a conversion circuit that is connected to an n-phase motor, and a control unit that controls the conversion circuit based on n-phase duty command values updated at a predetermined update cycle. When the control unit predicts, based on the n-phase duty command values, that voltage fluctuations of at least two-phase connection terminals among the n-phase connection terminals connected to the n-phase motor occur in the same direction and at the same timing, the control unit delays the occurrence timing of the voltage fluctuation of one of the two-phase connection terminals by a first time and advances the occurrence timing of the voltage fluctuation of another connection terminal by a second time. The total value of the first time and the second time is a predetermined time during which predetermined occurrence timings of the voltage fluctuations of the two-phase connection terminals do not overlap each other.

Classes IPC  ?

• H02P 27/14 - 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 avec au moins trois niveaux de tension

Abrégé

One aspect of an autonomous traveling device includes: an information adding unit that adds, as positional information of a virtual obstacle, to map information, positional information of a virtual obstacle that passes through a rear side of the device with respect to a starting point of a travel route and continuously extends to a front side on both right and left sides of the device itself; and a route search unit that searches for a travel route based on the map information to which the positional information of the virtual obstacle is added.

Classes IPC  ?

• G05D 1/246 - Dispositions pour déterminer la position ou l’orientation utilisant des cartes d’environnement, p. ex. localisation et cartographie simultanées [SLAM]
• G05D 1/622 - Évitement d’obstacles
• G05D 1/639 - Résorption ou évitement de situations de blocage ou d’obstruction

Abrégé

A base plate becomes a part of a housing of a disk drive device and is made of a metal die-cast member. The base plate includes a bottom wall portion and a cylindrical wall portion. The bottom wall portion extends perpendicular to a rotation axis of a disk extending in a vertical direction. The cylindrical wall portion protrudes upward from an upper surface of the bottom wall portion along the rotation axis and has a shaft through hole through which a shaft is inserted. The cylindrical wall portion has an annular stepped portion that protrudes radially outward from an outer peripheral surface of a root portion. A processed surface is formed on at least a part of an outer peripheral surface of the stepped portion.

Classes IPC  ?

• G11B 19/20 - EntraînementDémarrageArrêtCommande correspondante

Abrégé

A motor includes a rotor and a stator. The rotor can rotate around a central axis extending in an axial direction. The stator rotationally drives the rotor. The stator includes a stator core, a coil portion, an inner casing, and a heat conductor. The stator core has an annular shape surrounding the central axis. The coil portion is located in the stator core. The inner casing surrounds and accommodates the stator core and the coil portion in the inside and holds the stator core. The heat conductor is in contact with an axial end portion of the coil portion and the inner casing.

Classes IPC  ?

• 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
• A47L 5/28 - Aspirateurs à manche et buse fixés sur le corps, p. ex. aspirateurs à roues à manche de pilotage
• A47L 9/28 - Montage de l'équipement électrique, p. ex. adaptation ou fixation à l'aspirateurCommande des aspirateurs par des moyens électriques
• F04D 1/00 - Pompes à flux radial, p. ex. pompes centrifugesPompes hélicocentrifuges
• F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• H02K 1/14 - Noyaux statoriques à pôles saillants
• 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 9/06 - 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 avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine

Abrégé

A power conversion device includes a first module that is a heating element, a second module that is a heating element having a larger calorific value than the first module, a housing having an accommodation space for accommodating the first module and the second module, and a refrigerant flow path through which a refrigerant flows. The housing has a lid that covers the accommodation space. The refrigerant flow path includes a first flow path portion that is disposed outside the accommodation space and cools the first module via the lid, and a second flow path portion that is disposed inside the accommodation space and cools the second module.

Classes IPC  ?

• 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

Abrégé

A motor includes a heat dissipation portion located in one axial direction from a coil portion located on a stator core of a magnetic body. The heat dissipation portion is separate from a bracket, and is held by a stator holder of the bracket. The heat dissipation portion includes an annular portion having an annular shape surrounding the stator holder and being located on a radially outer surface of the stator holder. An extension extends radially outward from the annular portion.

Classes IPC  ?

• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 1/2791 - Aimants montés en surfaceAimants sertis
• 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

Abrégé

One aspect of a rotor of the present disclosure is a rotor that includes a rotor core extending along the axial direction and a plurality of auxiliary magnets disposed in the rotor core. The rotor core includes a slit group including a plurality of first slits aligned in a radial direction, and a second slit disposed radially inside the slit group when viewed from the axial direction. The first slit extends along the circumferential direction in a shape protruding radially inward when viewed from the axial direction. The second slit includes a magnet housing portion extending along the radial direction, and a pair of outer flux barrier portions. The auxiliary magnet is disposed in the magnet housing portion with the circumferential direction as the magnetization direction.

Classes IPC  ?

• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]

Abrégé

An optical member 100 includes a light-transmissive member 10 and a hydrophilic layer 20. The light-transmissive member 10 transmits visible light. The hydrophilic layer 20 covers the light-transmissive member 10. The hydrophilic layer 20 contains secondary particles obtained by aggregating a plurality of primary particles of titanium dioxide. The average particle diameter of the primary particles of titanium dioxide is 5-20 nm. The average particle diameter of the secondary particles of titanium dioxide is 15-100 nm. The thickness of a coating layer is preferably 5-20 nm.

Classes IPC  ?

• G02B 1/18 - Revêtements pour garder des surfaces optiques propres, p. ex. films hydrophobes ou photocatalytiques
• G02B 1/10 - Revêtements optiques obtenus par application sur les éléments optiques ou par traitement de la surface de ceux-ci
• G02B 1/115 - Multicouches

Abrégé

A reflection adjustment film 30 is used for an optical member 100 provided with a hydrophilic layer 20 containing a plurality of photocatalytic particles. The reflection adjustment film 30 is disposed under the hydrophilic layer 20. The thickness of the reflection adjustment film 30 is 5 times or more the thickness of the hydrophilic layer 20. The thickness of the reflection adjustment film 30 is preferably 20-2000 nm. The reflection adjustment film 30 is preferably provided with a low refractive index layer and a high refractive index layer. The photocatalytic particles are preferably titanium oxide particles.

Classes IPC  ?

• G02B 1/115 - Multicouches
• G02B 1/18 - Revêtements pour garder des surfaces optiques propres, p. ex. films hydrophobes ou photocatalytiques
• G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
• G03B 15/00 - Procédés particuliers pour prendre des photographiesAppareillage à cet effet
• G03B 17/08 - Corps d'appareils ou boîtiers étanches à l'eau

Abrégé

A hydrophilic film 70 contains a plurality of titanium particles and a plurality of silica particles. The hydrophilic film 70 has a surface roughness of 2.0-7.5 nm. It is preferable that a first layer 20 and a second layer 60 disposed on the first layer 20 are provided, and that the first layer 20 contains a plurality of titanium particles, and the second layer 60 contains a plurality of silica particles. The average particle diameter of the titanium particles is preferably 15-100 nm, and the average particle diameter of the silica particles is preferably 5-20 nm.

Classes IPC  ?

• G02B 1/18 - Revêtements pour garder des surfaces optiques propres, p. ex. films hydrophobes ou photocatalytiques
• G02B 1/10 - Revêtements optiques obtenus par application sur les éléments optiques ou par traitement de la surface de ceux-ci
• G02B 1/14 - Revêtements protecteurs, p. ex. revêtements durs
• G02B 1/115 - Multicouches

Abrégé

A rotor of one embodiment of the present invention is able to rotate about a central axis, and comprises: a rotor core; and an end plate that has a first plate surface facing the rotor core in the axial direction, and a second plate surface facing the inverse side from the first plate surface. The first plate surface comprises a contact surface that makes contact with the rotor core in the axial direction in a state where at least part of the end plate is elastically deformed in the axial direction. The contact surface comprises a first surface. In a state where the end plate is not elastically deformed, the first surface is, toward the radially outward side, located increasingly close to a first side of the axial direction where the rotor core is arranged with respect to the end plate, In the state where the end plate is not elastically deformed, a radially outward end of the first surface is the portion of the contact surface that is located closest to the first side. The end plate comprises a first recess provided to an outer surface of the end plate. At least part of the first recess overlaps the first surface in the axial direction.

Classes IPC  ?

• H02K 1/22 - Parties tournantes du circuit magnétique

Abrégé

An aspect of an autonomous travel device includes a selected unit configured such that one option is selected from a plurality of options corresponding to each of a plurality of passage widths having mutually different degrees of freedom of movement allowed for travel through a passage, and a route search unit configured to search for, on the basis of map information, a travel route that avoids passages that are narrow relative to the passage width corresponding to the selected option.

Classes IPC  ?

• G01C 21/34 - Recherche d'itinéraireGuidage en matière d'itinéraire
• G08G 1/16 - Systèmes anticollision

Abrégé

The present invention relates to a rotating electric machine comprising: a rotor that can rotate about a central axis; a stator that is positioned on the radially outer side of the rotor; a cylindrical holding member that surrounds the stator from the radially outer side and holds the stator; and a housing that accommodates the rotor, the stator, and the holding member therein. The holding member has a first rib provided on a radially outer surface of the holding member and in contact with the housing. The housing has a second rib provided on a radially outer surface of the housing. At least a part of the first rib overlaps the second rib in the radial direction.

Classes IPC  ?

• 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 5/24 - EnveloppesEnceintesSupports spécialement adaptés pour la réduction ou à la suppression des bruits ou vibrations

Abrégé

A stator core has tooth portions each including a body and an umbrella portion. The umbrella portion includes a first vertex closest to one side in the circumferential direction in a surface facing the side end and the other side in the radial direction, a second vertex farthest from the side end portion toward the one side in the circumferential direction, a third vertex closest to the other side in the circumferential direction in a surface facing the other side in the radial direction, and a fourth vertex farthest from the side end portion toward the other side in the circumferential direction. Lx is between side end portions facing in the circumferential direction on a virtual straight line passing through the second and fourth vertices, Ly1 is between the side end portion and the second vertex, Ly2 is between the side end portion and the fourth vertex, 0

Classes IPC  ?

• H02K 1/16 - Noyaux statoriques à encoches pour enroulements

Abrégé

A cooling device includes a first component, a second component, and a shielding portion. The first component cools a heat generating component. The second component is different from the first component. The shielding portion performs shielding between the first component and the second component. The shielding portion includes a conductive material.

Classes IPC  ?

• H01R 13/6581 - Structure du blindage
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

An electronic device includes a conductive panel including a first opening, a display to display an image, and an electrically insulating spacer fixed to the panel. The spacer supports the display at a position away from the first opening in an intersecting direction intersecting with the first opening, and electrically isolates the display from the panel.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A cylinder includes a cylindrical portion, an insertion portion, and a first sealing portion. The cylindrical portion has a central axis, extends in an axial direction along the central axis, and allows liquid to flow. The insertion portion extends along the central axis and is inserted into the inside of the cylindrical portion. The first sealing portion seals a space between the cylindrical portion and the insertion portion. The insertion portion includes a recessed portion and a second sealing portion. The recessed portion is annular. The recessed portion is located along an outer peripheral surface of the insertion portion and accommodates the first sealing portion. A second sealing portion seals a space between a step on a bottom surface of the recessed portion and the first sealing portion.

Classes IPC  ?

• F16L 33/035 - Colliers de serrage pour manches fixés au moyen de dents ou de crochets
• F16L 37/086 - Accouplements du type à action rapide dans lesquels l'assemblage entre les extrémités s'aboutant ou se chevauchant est maintenu par des organes de blocage combinés à un verrouillage automatique au moyen d'éléments d'enclenchement poussés radialement par des éléments faisant ressort
• F16L 37/35 - Accouplements du type à action rapide avec moyens pour couper l'écoulement du fluide avec un obturateur dans chaque extrémité de tuyau avec deux clapets dont l'un au moins est ouvert automatiquement au moment de l'accouplement au moins un des clapets possédant un canal axial communiquant avec des ouvertures latérales

Abrégé

A rotor includes: a rotor core having first and second vent holes penetrating in an axial direction; and a fan disposed to face at least one end surface on an axial side of the rotor core, and having an outflow path connected to the first vent hole and an inflow path connected to the second vent hole. The fan includes a first surface facing the end surface, an outer surface positioned radially outside the first surface, and a first recess portion in the first surface and axially overlapping the first vent hole. The first recess portion includes a first opening portion opening to the outer surface. At least a part of the outflow path is surrounded by the end surface and the first recess portion. A cross-sectional area of the outflow path in the first opening portion is smaller than a minimum cross-sectional area of the inflow path.

Classes IPC  ?

• H02K 9/06 - 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 avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine
• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]

Abrégé

This signal conversion method converts each of a plurality of analog signals into a digital signal, and includes: a first step in which a sampling process for sampling the value of an analog signal at least once is sequentially performed a plurality of times; and a second step that is performed following the first step, and in which the sampling process is sequentially performed a plurality of times. The plurality of instances of the sampling process performed in the first step include at least one instance of the sampling process for each of the plurality of analog signals. In the second step, the plurality of instances of the sampling process performed in the first step are performed in the opposite order from that of the first step.

Classes IPC  ?

• H02P 6/16 - Dispositions de circuits pour détecter la position

Abrégé

This optical element has an optical axis Lx. The optical element comprises a plastic lens, a hard coat layer, and an anti-reflection film. The hard coat layer is positioned between the plastic lens and the anti-reflection film. The anti-reflection film is disposed on at least one surface side of the plastic lens. The thickness of the hard coat layer on the optical axis is 2-20 μm. The minimum thickness of the hard coat layer is 2 μm or more, and the maximum thickness of the hard coat layer is 20 μm or less.

Classes IPC  ?

• G02B 1/14 - Revêtements protecteurs, p. ex. revêtements durs
• G02B 1/115 - Multicouches
• G02B 3/00 - Lentilles simples ou composées
• G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles

Abrégé

This lens unit comprises a plurality of lenses and a cylindrical housing member that houses the plurality of lenses. The plurality of lenses are arranged in order from an opening in the housing member, and the outermost lens positioned on the opening side of the housing member among the plurality of lenses includes a plastic lens, an antireflection film arranged on at least one surface side of the plastic lens, and a hard coat layer positioned between the plastic lens and the antireflection film. The lens unit further comprises a light shielding member that shields the outer edge of the outermost lens from light.

Classes IPC  ?

• G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
• G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
• G02B 1/14 - Revêtements protecteurs, p. ex. revêtements durs
• G02B 1/115 - Multicouches
• G02B 3/00 - Lentilles simples ou composées
• G03B 30/00 - Modules photographiques comprenant des objectifs et des unités d'imagerie intégrés, spécialement adaptés pour être intégrés dans d'autres dispositifs, p. ex. des téléphones mobiles ou des véhicules

Abrégé

A fluid machine includes a flow path including an outflow port of a fluid, a first portion through which the fluid flows from the other side to one side in a first direction, and a second portion through which the fluid flows. The second portion is located between one end of the first portion in the first direction and the outflow port. The fluid machine further includes a check valve portion that is movable along the first direction in the first portion, and is located at a first position at which the one end is closed, a second position that is located on one side in the first direction and through which the fluid can circulate between the first and second portions, and a third position at which the one end is closed and that is located on another side in the first direction with respect to the first position.

Classes IPC  ?

• F28F 27/00 - Commandes ou dispositifs de sécurité spécialement adaptés pour les appareils d'échange ou de transfert de chaleur
• F16K 15/02 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés

Abrégé

A drive device includes a transmission in a housing, and a flow path. The transmission includes a shaft and a bearing supporting the shaft. The housing has a bearing holding portion that includes a facing surface on a first side in an axial direction with respect to an end on the first side of the shaft and orthogonal to the axial direction, and an inner surface extending from the facing surface to the other, second side in the axial direction and supporting the bearing. The flow path includes an inflow portion and an outflow portion below the inflow portion, both open to the inner surface. The facing surface has a rib protruding to the second side and orthogonal to the axial direction. At least a part of the rib is below the inflow portion, and at least a part of the rib covers the outflow portion from above.

Classes IPC  ?

• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
• F16H 57/02 - Boîtes de vitessesMontage de la transmission à l'intérieur
• F16H 57/021 - Structures de support d'arbres, p. ex. parois de séparation, orifices de logement de paliers, parois de carter ou couvercles avec paliers
• H02K 5/16 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques
• 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
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• 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

Abrégé

A rotary electric machine includes a housing having a tubular shape extending in a first direction and including an opening that opens to one side in the first direction, a first board on one side in a second direction intersecting the first direction with respect to the housing, and a lid fixed to an end portion on one side in the first direction of the housing. The housing includes a through hole penetrating the housing in the second direction. The lid includes a connector including a first terminal and a holder to hold the first terminal, and a cover that covers the opening and holder and is defined by a same structure as that of the holder.

Classes IPC  ?

• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes
• H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p. ex. de l'eau ou des doigts
• H02K 15/00 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques

Abrégé

A drive device includes a motor, a transmission, a housing, and a flow path. The transmission includes first to third shafts, and first to third bearings supporting the first to third shafts, respectively. The housing includes a side wall covering a gear chamber from one side in an axial direction, and having first to third bearing holding portions for holding the first to third bearings, respectively. The flow path includes a supply flow path portion that supplies a fluid to the inside of the second bearing holding portion, a first flow path portion that connects the inside of the second bearing holding portion and the inside of the first bearing holding portion, and a second flow path portion that connects the inside of the second bearing holding portion and the inside of the third bearing holding portion.

Classes IPC  ?

• 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
• B60K 1/00 - Agencement ou montage des ensembles de propulsion électriques
• H02K 5/16 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques
• H02K 7/08 - Association structurelle avec des paliers
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages

Abrégé

This rotary electrical machine comprises: a rotor that can rotate about the central axis; a stator positioned at the radially outer side of the rotor; a cylindrical member that is positioned at the radially outer side of the stator and that accommodates therein the stator; and a housing that has an accommodation part for accommodating therein the rotor, the stator, and the cylindrical member. The cylindrical member has a stator fixing part to which the stator is fixed, a first support part that is positioned closer to one side in the axial direction as compared to the stator fixing part and that is supported on the accommodation part, and a first connection part that is positioned between the stator fixing part and the first support part in the axial direction and that connects the stator fixing part and the first support part. At least a portion of the stator fixing part and at least a portion of the first connection part are arranged so as to be separated radially inward from the inner surface of the accommodation part.

Classes IPC  ?

• H02K 5/02 - Enveloppes ou enceintes caractérisées par le matériau les constituant
• 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

Abrégé

A dynamo-electric machine comprising: a rotor that is capable of rotating about a central axis; a stator that is positioned on the radially outer side of the rotor; a cylindrical member that is positioned on the radially outer side of the stator, the cylindrical member accommodating the stator in the interior thereof; and a housing that has an accommodation part for accommodating the rotor, the stator, and the cylindrical member in the interior thereof. The stator has a stator core fixed to the cylindrical member, and a coil end that protrudes from the stator core in the axial direction. A gap is provided between the radially outer surface of the cylindrical member and the radially inner surface of the accommodation part. The accommodation part has: a first flow passage part that overlaps the stator core in a direction intersecting the axial direction, the first flow passage part being connected to the gap; and a second flow passage part that overlaps the coil end in a direction intersecting the axial direction, the second flow passage having a fluid for cooling the coil end flowing therein.

Classes IPC  ?

• 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

Abrégé

This rotor comprises a shaft, a rotor core having a plurality of core piece parts aligned in the axial direction, and a plate disposed between the core piece parts adjacent to each other in the axial direction. The shaft has a first shaft hole part and a second shaft hole part connected to the first shaft hole part. The rotor core has a pair of first magnet holes, a second magnet hole positioned radially outside the pair of first magnet holes, and a core channel part positioned in a portion surrounded by the pair of first magnet holes and the second magnet hole when viewed in the axial direction. The plate has a plate channel part that connects the second shaft hole part and the core channel part. The plate channel part has a supply channel part that overlaps the core channel part when viewed in the axial direction, and a connection channel part that connects the second shaft hole part and the supply channel part. The connection channel part overlaps at least a portion of the pair of first magnet holes when viewed in the axial direction.

Classes IPC  ?

• H02K 1/32 - Parties tournantes du circuit magnétique avec des canaux ou des conduits pour l'écoulement 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

Abrégé

A lens unit according to the present invention is provided with: a plurality of lenses; and a cylindrical housing member for housing the plurality of lenses. The plurality of lenses are arranged in order from an opening of the housing member. An outermost lens positioned on the opening side of the housing member among the plurality of lenses includes: a plastic lens having a surface provided with an inflection section; an antireflection film disposed on the surface side of the plastic lens; and a hard coat layer positioned between the plastic lens and the antireflection film. The lens unit is further provided with a light shielding member that shields the inflection section of the plastic lens from light.

Classes IPC  ?

• G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
• G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
• G02B 1/14 - Revêtements protecteurs, p. ex. revêtements durs
• G02B 1/115 - Multicouches
• G02B 3/00 - Lentilles simples ou composées
• G03B 30/00 - Modules photographiques comprenant des objectifs et des unités d'imagerie intégrés, spécialement adaptés pour être intégrés dans d'autres dispositifs, p. ex. des téléphones mobiles ou des véhicules

Abrégé

This stator comprises an annular stator core surrounding the central axis extending in the axial direction, a plurality of coil parts, a circuit board, and an electrically insulating coating member. The stator core has slots. The plurality of slots penetrate in the axial direction and are arranged in the circumferential direction. The plurality of coil parts are disposed in the slots, respectively. The circuit board is disposed further in one axial direction than the stator core and is electrically connected to lead-out wires led out from the coil parts. The coating member coats at least the coil parts. The circuit board has a first through-hole extending in the axial direction. At least a part of the first through-hole overlaps with the stator core when viewed from the axial direction.

Classes IPC  ?

• H02K 3/44 - Protection contre l'humidité ou les agents chimiquesEnroulements spécialement adaptés à un fonctionnement dans un liquide ou un gaz
• H02K 15/12 - Imprégnation, chauffage ou séchage des bobinages, des stators, des rotors ou des machines

Produits et services

Variable speed electric motors for use with pumps

Abrégé

This rotor manufacturing method comprises: a core plate formation step for punching a steel plate to form a plurality of core plates having a plurality of insertion holes that penetrates the steel plate in the thickness direction, each insertion hole serving to configure a part of a corresponding magnet insertion hole of a plurality of magnet insertion holes, and a plurality of protrusions protruding toward the inside of the plurality of insertion holes; a protrusion removal step for removing at least one of the plurality of protrusions in at least some of the plurality of core plates formed in the core plate formation step; a lamination step for laminating the plurality of core plates to configure the magnet insertion holes of the insertion holes in which the protrusions protrude toward the inside and the insertion holes from which the protrusions have been removed; and a magnet insertion step for inserting the magnet into each of the plurality of magnet insertion holes and holding the magnets in contact with the protrusions.

Classes IPC  ?

• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]

Abrégé

A first core plate of this rotor comprises: a first insertion hole; a protrusion that protrudes toward the inside of the first insertion hole and is in contact with a magnet; and a deformation-allowing part that is positioned in a direction opposite to a direction in which the first insertion hole is positioned with respect to the protrusion in an arrangement direction of the first insertion hole and the protrusion, and allows deformation of the protrusion in said opposite direction. A second core plate has a second insertion hole for exposing at least a part of the protrusion when viewed from the axial direction in a state where the second core plate is stacked on the first core plate. A plurality of the second core plates include a central core plate that is stacked at the center in the axial direction of the rotor core, and a first surface layer core plate and a second surface layer core plate that constitute end surfaces in the axial direction of the rotor core. At least one first core plate is stacked between the central core plate and the first surface layer core plate, and at least one first core plate is stacked between the central core plate and the second surface layer core plate.

Classes IPC  ?

• H02K 1/22 - Parties tournantes du circuit magnétique

Abrégé

At least one of a plurality of fins includes a plurality of fin regions in a first direction, the plurality of fin regions facing a plurality of semiconductor elements in a third direction, the plurality of the semiconductor elements being disposed in the first direction, and the plurality of fin regions includes two or more fin regions each of which includes the side wall part provided with a spoiler. The spoiler is equal in number between the two or more fin regions, and flow path resistance due to structure of the spoiler in each of the fin regions increases from an upstream side toward a downstream side of the corresponding one of the fin regions through which a refrigerant flows.

Classes IPC  ?

• H01L 23/473 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température impliquant le transfert de chaleur par des fluides en circulation par une circulation de liquides

Abrégé

A heat radiating member includes: a base part in a plate shape that extends in a first direction along a refrigerant flow direction and in a second direction orthogonal to the first direction; a heat radiating fin part formed by stacking a plurality of fins in the second direction, the plurality of fins protruding from the base part toward a first side; and a plurality of flow path channels formed in the second direction in the heat radiating fin part, a first flow path channel through which the refrigerant passes through a region facing a semiconductor element, the semiconductor element being disposed on a second side in the base part; and a second flow path channel through which the refrigerant does not pass, and the first flow path channel having a lower average flow path resistance than the second flow path channel.

Classes IPC  ?

• H01L 23/473 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température impliquant le transfert de chaleur par des fluides en circulation par une circulation de liquides
• H01L 25/18 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant de types prévus dans plusieurs différents groupes principaux de la même sous-classe , , , , ou

Abrégé

A heat radiating fin part includes at least one protrusion protruding toward a first side in a first direction and being provided at an end of the heat radiating fin part on the first side in the first direction, the end allowing a refrigerant supplied through a liquid cooling jacket to flow into the end. The at least one protrusion is provided on at least one of a first side in the second direction with respect to a center position of the heat radiating fin part in the second direction. At least a part of a semiconductor element provided on a base part on a second side is disposed closer to a center position in the second direction than the protrusion provided closest to the center position in the second direction on the first side in the second direction.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A synchronous reluctance motor includes a rotor having a rotor iron core and a stator having pole teeth. The rotor iron core defines multiple magnetic poles. A magnetic barrier area is defined between adjacent magnetic poles in a circumferential direction, and a conductor area is located at a radially outer side of the magnetic barrier area. The magnetic barrier area is provided with a hole arranged in multiple layers in a radial direction and defining a magnetic barrier. The conductor area is provided with multiple conductors arranged at substantially equal intervals in the circumferential direction and having substantially identical cross-sectional shapes as each other. The following relationship is satisfied: Nc={2×[Nt/(2×Np)−1]−1}×Np where Nt is a number of the pole teeth, Np is a number of the magnetic poles, and Nc is a number of the conductors.

Classes IPC  ?

• H02K 21/46 - Moteurs avec enroulement supplémentaire en court-circuit pour démarrage en moteur asynchrone

Abrégé

A housing of a rotating electrical machine has a flow path extending in a rectangular wave shape along a circumferential direction, and including axial paths, and first and second circumferential paths joining first ends and second ends of the axial paths, respectively. The axial path includes joined first and second paths. A cross-section in each of the first and second paths decreases toward the other. A difference between the cross-sections at the first end and at the first circumferential path is not higher than a difference between the cross-sections at the first end and at a third end of the first path close to the second path. A difference between the cross-sections at the second end and at the second circumferential path is not higher than a difference between the cross-sections at the second end and at a fourth end of the second path close to the first path.

Classes IPC  ?

• 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

Abrégé

A sintered oil-impregnated bearing comprising a bushing portion and groove groups. The bushing portion is made of a porous sintered body that can be impregnated with lubricating oil, and the bushing portion extends along a central axis. The groove groups have a plurality of first grooves. The plurality of first grooves extend at least in the axial direction of the central axis and are aligned in the circumferential direction. A plurality of groove groups are arranged on the radially outer surface of the bushing portion and are aligned in the circumferential direction. Circumferential gaps between first grooves that are adjacent in the circumferential direction within each of the groove groups are smaller than circumferential gaps between groove groups that are adjacent in the circumferential direction. Additionally, a motor comprising the above-described sintered oil-impregnated bearing, a shaft, a rotor, and a bearing holder. The shaft extends along the central axis, and the rotor is capable of rotating together with the shaft about the central axis. The bearing holder rotatably supports the shaft via the sintered oil-impregnated bearing. The bearing holder has a holder cylinder and a plurality of ribs. The holder cylinder extends in the axial direction and encircles and holds the sintered oil-impregnated bearing. The plurality of ribs protrude radially inward from the radially inner surface of the holder cylinder and are aligned in the circumferential direction.

Classes IPC  ?

• F16C 33/10 - Structures relatives à la lubrification
• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement
• H02K 5/167 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des paliers à contact lisse ou des chapeaux de palier sphériques

Abrégé

A fin includes spoilers along a first direction. Each spoiler protrudes in a second direction only at one position on a periphery of an opening passing through a side plate part in the second direction, and is inclined to a first side in the first direction that is a downstream side and a second side in the third direction. An upstream spoiler includes a first end on the second side in the first direction. The first end includes, on the second side in the third direction, a second end on the first side from a center of the side plate part in the third direction. A part of at least one downstream spoiler is on the second side in the third direction from a fourth end on the second side in the third direction of a third end on the second side in the first direction of the upstream spoiler.

Classes IPC  ?

• H01L 23/473 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température impliquant le transfert de chaleur par des fluides en circulation par une circulation de liquides

Abrégé

A container includes a first container portion and a second container portion. The first container portion includes a flow path therein through which liquid passes. The second container portion is connected to the flow path and is capable of containing the liquid. The second container portion includes a reservoir and a changing assembly. The reservoir can store the liquid in at least a portion thereof. The changing assembly changes the volume of the reservoir according to a change in the liquid.

Classes IPC  ?

• F28F 3/12 - Éléments construits sous forme d'un panneau creux, p. ex. comportant des canaux

Abrégé

A variable frequency drive motor system and method with a single variable frequency drive controller controlling multiple synchronous reluctance motors in an open-loop mode using volts-per-Hertz control. Each motor includes a rotor including three or more curved, spaced-apart barrier slots extending longitudinally through each quadrant of the rotor. The rotor also includes a conductive cage including a plurality of conductive rotor bars contained within the barrier slots and also extending longitudinally through each quadrant, and conductive end rings located at opposite ends of the rotor and electrically connected to the respective ends of the rotor bars. The controller controls speed and torque by varying input frequency and voltage in an open-loop mode by adjusting the voltage magnitude of an inverter's output to each motor to match a required load torque in a volts-per-Hertz relationship. An operator interface allows for starting, stopping, adjusting, and otherwise controlling the operation of each motor.

Classes IPC  ?

• H02P 25/092 - Convertisseurs spécialement adaptés pour la commande des moteurs à réluctance
• H02P 27/04 - 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

Abrégé

A refrigerant circulation device includes a chassis, a pump assembly, mounting portions, and a controller. The chassis includes a flow path of refrigerant. The mounting portions are provided at different positions in the chassis. The pump assembly is detachably mounted to each of the mounting portions. The controller is configured or programmed to execute specification processing to specify a mounted state of the pump assembly to any one of the mounting portions multiple times at time intervals, and control the pump assembly mounted to the mounting portions based on the mounted state specified in the specification processing. The pump assembly pressure-feeds the refrigerant to the flow path under the control of the controller.

Classes IPC  ?

• F04B 53/22 - Dispositions pour l'assemblage ou le démontage rapide
• F04B 23/04 - Combinaisons de plusieurs pompes
• F04B 49/06 - Commande utilisant l'électricité