Abrégé

This ceiling-embedded air conditioner comprises: a motor having an output shaft that is rotatable about the axis; a turbofan attached to the output shaft; a heat exchanger that surrounds the turbofan and through which air pumped by the turbofan passes; a drain pan provided below the heat exchanger and formed with a suction port opening about the axis; a main electrical box attached to the lower surface of the drain pan; and a refrigerant sensor that is attached to the drain pan and detects refrigerant in the air. The lower surface of the drain pan is formed with a first area where the main electrical box is located on one edge extending along a first dividing line perpendicular to the axis as viewed from the axial direction, and a second area located on the opposite side to the first area; the refrigerant sensor is provided in the second area.

Classes IPC  ?

• F24F 11/89 - Aménagements ou montage des dispositifs de commande ou de sécurité
• F24F 13/20 - Enveloppes ou couvercles

Abrégé

A vehicle cooling cycle unit which is interposed between a vehicle exterior heat exchanger and a vehicle interior heat exchanger, and carries out heat exchange between a secondary cooling medium flowing through the vehicle exterior heat exchanger and the secondary cooling medium flowing through the vehicle interior heat exchanger, said vehicle cooling cycle comprising: a cooling cycle which has a compressor, a condenser, an expansion valve, and an evaporator through which a primary cooling medium flows in order; an exterior flow path which allows the secondary cooling medium to circulate between the evaporator and the vehicle exterior heat exchanger; an interior flow path which allows the secondary cooling medium to circulate between the condenser and the vehicle interior heat exchanger; a pair of four-way valves which connect the exterior flow path and the interior flow path so as to be able to switch the flow state therebetween; a first bypass flow path which is installed along with the exterior flow path and bypasses the evaporator; and a first flow rate adjustment unit which adjusts the flow rate of the secondary cooling medium flowing into the evaporator.

Classes IPC  ?

• B60H 1/22 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée autrement que de l'installation de propulsion

Abrégé

This vehicle refrigeration cycle unit is interposed between a vehicle-exterior heat exchanger and a vehicle-interior heat exchanger, and exchanges heat between secondary refrigerants flowing through each of the vehicle-exterior heat exchanger and the vehicle-interior heat exchanger. The vehicle refrigeration cycle unit comprises: a refrigeration cycle having a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant flows in sequence; an outdoor flow path through which the secondary refrigerants are circulated between the evaporator and the vehicle-exterior heat exchanger; an indoor flow path through which the secondary refrigerants are circulated between the condenser and the vehicle-interior heat exchanger; a pair of four-way valves that connect the outdoor flow path and the indoor flow path so as to be able to switch between flow states of the flow paths; a first bypass flow path that is installed alongside the outdoor flow path and bypasses the evaporator; and a first flow rate control unit that controls the flow rate of the secondary refrigerants flowing into the evaporator.

Classes IPC  ?

• B60H 1/22 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée autrement que de l'installation de propulsion

Abrégé

This vehicular refrigeration cycle unit is interposed between a cabin exterior heat exchanger and a cabin interior heat exchanger and performs heat exchange between secondary refrigerant flowing through the cabin exterior heat exchanger and secondary refrigerant flowing through the cabin interior heat exchanger. The vehicular refrigeration cycle unit comprises: a refrigeration cycle having a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant sequentially flows; a cabin exterior flow path that causes the secondary refrigerant to circulate between the evaporator and the cabin exterior heat exchanger; a cabin interior flow path that causes the secondary refrigerant to circulate between the condenser and the vehicle interior heat exchanger; a pair of flow path switching valves that switchably connect the flow states of the cabin exterior path and the cabin interior path; a first bypass flow path that is installed to the cabin exterior flow path and bypasses the evaporator; and a first flow rate regulation unit that regulates the flow rate of the secondary refrigerant flowing into the evaporator.

Classes IPC  ?

• B60H 1/22 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée autrement que de l'installation de propulsion

Abrégé

This vehicular refrigeration cycle unit is interposed between a vehicle exterior heat exchanger and a vehicle interior heat exchanger, and causes heat to be exchanged between secondary refrigerants flowing through each of the vehicle exterior heat exchanger and the vehicle interior heat exchanger, the vehicular refrigeration cycle unit comprising: a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator, through which a primary refrigerant flows sequentially; an outdoor flow passage allowing the secondary refrigerant to circulate between the evaporator and the vehicle exterior heat exchanger; an indoor flow passage allowing the secondary refrigerant to circulate between the condenser and the vehicle interior heat exchanger; a pair of flow passage switching valves connecting the outdoor flow passage and the indoor flow passage such that a flow-through state of the outdoor flow passage and the indoor flow passage can be switched; a first bypass flow passage provided in parallel with the outdoor flow passage to bypass the evaporator; and a first flow rate adjusting unit for adjusting a flow rate of the secondary refrigerant flowing into the evaporator.

Classes IPC  ?

• B60H 1/22 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée autrement que de l'installation de propulsion

Abrégé

The present invention provides a control method, a vehicle, and a constant-temperature transport system capable of suppressing a reduction in heating performance. The constant-temperature transport system comprises: a compressor (21) that compresses a refrigerant; an exterior heat exchanger (24) connected to the downstream side of the compressor (21); an interior heat exchanger (29) connected to the downstream side of the exterior heat exchanger (24); a hot gas bypass pathway (33) that is connected to the discharge side of the compressor (21) and that supplies the refrigerant to the interior heat exchanger (29) by bypassing the external heat exchanger (24); an expansion valve (34) provided to the hot gas bypass pathway (33); a temperature detection unit (35) that detects the temperature of air affected by the interior heat exchanger (29); a pressure detection unit (36) that detects the pressure of the refrigerant on the outlet side of the interior heat exchanger (29); and a control unit that controls the expansion valve (34) such that, on the outlet side of the interior heat exchanger (29), the saturation temperature, which is dependent on the pressure, is lower than the temperature by a prescribed temperature.

Classes IPC  ?

• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• B60P 3/20 - Véhicules adaptés pour transporter, porter ou comporter des charges ou des objets spéciaux pour le transport de marchandises réfrigérées
• F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée
• F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur

Abrégé

The purpose of the present invention is to provide an abnormality detection system and refrigerator, an abnormality detection method, and an abnormality detection program which can improve the accuracy of abnormality detection. The abnormality detection system comprises: an acquisition unit which acquires driving data of a refrigerator (11); a creation unit which creates a model capable of estimating a prescribed driving state of the refrigerator (11) on the basis of the driving data, when the driving data is non-trained data; a determination unit which compares an estimation value of the driving state, the estimation value being estimated by the model, with an actual measurement value corresponding to the driving state, and determines whether the driving data is an outlier; and an abnormality detection unit which performs, on the basis of the model, abnormality detection on the refrigerator (11), when the driving data is not determined to be the outlier.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique
• F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression

Abrégé

Provided are: a holding structure that is for an electrical component box and that is capable of firmly fixing the electrical component box in a state where the electrical component box is positioned, and is capable of allowing the electrical component box to rotate without using a special component; an outdoor unit; and a maintenance method. A first sheet metal part (31) has a locking tab (33) extending toward the front in the depth direction. An attachment sheet metal part (21) has an attachment notch (22) into which the locking tab (33) enters from the width direction of an outdoor unit. A second sheet metal part (41) has a second notch (42) into which the locking tab enters from the width direction. A first electrical component box takes a fixed position in which the locking tab (33) enters the attachment notch (22) and the second notch (42) so that the first electrical component box is fixed in a state of being adjacent to a side edge (22a) of the attachment notch, and a rotated position in which the locking tab (33) abuts a lower edge (22c) of the attachment notch (22). When the first electrical component box is in the fixed position, the first sheet metal part (31) is overlapped with, and makes a surface contact with the second sheet metal part (32).

Classes IPC  ?

• F24F 1/22 - Leur agencement ou leur montage
• F24F 11/89 - Aménagements ou montage des dispositifs de commande ou de sécurité

Abrégé

Provided is a scroll compressor (100) comprising: a motor (30) that causes an orbiting scroll (22) to rotate with respect to a fixed scroll (21); a rotating shaft (40) that is rotated around an axis (X) by the motor (30); a bearing (50) that supports the rotating shaft (40); and a housing (10). The housing (10) includes a partition wall (16) that partitions an internal space (IS) into a first space (IS1) in which the motor (30) is disposed and a second space (IS2) in which the bearing (50) and a compressor (20) are disposed. The partition wall (16) includes a first communication passage (16c) that guides a mixed refrigerant containing a lubricant and a refrigerant gas from the first space (IS1) to the region of the second space (IS2) where the bearing (50) is located, and a second communication passage (16d) that guides, to the compressor (20), the refrigerant gas which is contained in the mixed refrigerant that was guided to the region of the second space (IS2).

Classes IPC  ?

• F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c. à d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
• F04C 29/02 - Lubrification; Séparation du lubrifiant

Produits et services

Heat pumps; air conditioning apparatus; heating installations; water heaters; hot water supply installations.

Abrégé

188), wherein the refrigerant circulation circuit is filled with HFO-1336mzz (Z) as the refrigerant, a refrigerator oil supply unit (15) for supplying refrigerator oil to the compressor (11) is provided, the refrigerator oil supply unit (15) includes a storage unit (15a) in which the refrigerator oil is stored, the refrigerator oil includes an ester-based base oil having a kinematic viscosity at 40°C of 100 mm2/s to 180 mm2/s, and 0.1 mass% to 6 mass% of an epoxy-based acid scavenger with respect to the total mass of the refrigerator oil, and the mechanical design temperature is 130°C to 225°C.

Classes IPC  ?

• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• C10M 105/34 - Esters d'acides monocarboxyliques
• C10M 129/18 - Epoxydes
• C10N 30/08 - Résistance aux températures extrêmes
• C10N 40/30 - Lubrifiants pour machines frigorifiques

Abrégé

The purpose of the present invention is to reduce costs during processing and assembly. This compressor comprises: a housing 11 serving as an outer shell; a scroll compression mechanism 10 which has an orbiting scroll 13 performing an orbiting motion, and a fixed scroll 12 having an end plate 12a and a wall body 12b standing upright on one surface of the end plate 12a, and which is installed inside the housing 11 and compresses a refrigerant containing lubricating oil; a lid section 11b of the housing 11 which is in surface contact with the other surface 12aa of the end plate 12a; an oil separator 29 which separates lubricating oil from the refrigerant compressed by the scroll compression mechanism 10; and an oil storage chamber 24 which stores the lubricating oil separated by the oil separator 29. A lubricating oil groove through which the lubricating oil discharged from the oil storage chamber 24 circulates is formed in the other surface 12aa of the end plate 12a.

Classes IPC  ?

• F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c. à d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
• F04B 39/02 - Lubrification
• F04C 29/02 - Lubrification; Séparation du lubrifiant

Abrégé

A heat source system (3) supplies a heat medium to an AHU (2). The heat source system (3) comprises: a plurality of heat source units; and a system controller that controls, in accordance with a requested-capacity requested by the AHU, the number of the plurality of heat source units to run. If it is necessary to start a plurality of the heat source units in order to meet the requested-capacity requested by the AHU (2), the system controller causes the heat source units to start in stages, until the number of heat source units that were started reaches a necessary number of units determined on the basis of the requested capacity.

Classes IPC  ?

• F24F 11/83 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur

Abrégé

The present invention provides a shut-off unit that, with simple control and a simple configuration, reduces pressure loss of a coolant caused by a shut-off valve, makes it possible to draw a vacuum in an indoor unit even in a state where there is no power source yet at the installment site and the shut-off valve cannot be opened, and is capable of releasing the coolant to the outdoor unit. The present invention comprises: shut-off liquid coolant piping (Ps1) through which a liquid coolant flows; shut-off gas coolant piping (Ps2) through which a gas coolant flows; a liquid shut-off valve (131) which is provided to the shut-off liquid coolant piping (Ps1); a gas shut-off valve (132) which is provided to the shut-off gas coolant piping (Ps2); gas bypass piping (Ps4); and a gas check valve (134) which is provided to the gas bypass piping (Ps4), wherein the gas check valve (134) prevents the flow of coolant from an outdoor unit (110) to an indoor unit (120) and allows the flow of coolant from the indoor unit (120) to the outdoor unit (110).

Classes IPC  ?

• F25B 41/24 - Disposition de soupapes d'arrêt pour déconnecter une partie du cycle du réfrigérant, p.ex. une partie extérieure
• F24F 1/32 - Conduites réfrigérantes pour relier les éléments extérieurs séparés aux éléments intérieurs
• F24F 11/36 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p.ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques aux fuites de fluides échangeurs de chaleur
• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression

Abrégé

Provided are a sterilization system, an air conditioner, a sterilization method, and a sterilization program which make it possible to increase the life of a UV irradiation device and inhibit microorganisms in drain water. The sterilization system comprises an irradiation control unit that controls intermittent irradiation in which: irradiation is performed for an irradiation time that is not more than 22% of a reference time, said reference time being the time for which a prescribed sterilization rate is achieved when continuously irradiating drain water in a drain pan (3) of an air conditioner (1) with UV light from an LED (6); the irradiation is stopped for a prescribed pause time after the irradiation time; and irradiation is performed after the pause time.

Classes IPC  ?

• A61L 2/10 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contact; Accessoires à cet effet utilisant des phénomènes physiques des radiations des ultraviolets
• F24F 13/22 - Moyens pour éviter la condensation ou pour évacuer le condensat

Abrégé

The present invention is equipped with: a box-shaped container which can be installed in a vehicle body; a refrigeration cycle equipped with at least an indoor heat exchanger positioned inside the container and a motor compressor for compressing a coolant supplied to the indoor heat exchanger; a strong current-type apparatus which is equipped with a boost converter which boosts the DC low voltage supplied from a low voltage DC power source provided on the vehicle body side to a DC high voltage, and an inverter which is electrically connected to the boost converter and converts the DC high voltage into AC high voltage; a weak current-type apparatus which is driven by a lower voltage than is the strong current-type apparatus, and is provided with a controller for controlling inverter operation; a strong current-type storage box in which the strong current-type apparatus is stored; a low current-type storage box in which the low current-type apparatus is stored; and a box-shaped unit body which is installed on the upper section of the front surface of the container or on the top surface of the container, and in which the strong current-type storage box is stored.

Classes IPC  ?

• F25D 11/00 - Dispositifs autonomes déplaçables associés à des machines frigorifiques, p.ex. réfrigérateurs ménagers
• F25D 29/00 - Disposition ou montage de l'appareillage de commande ou de sécurité
• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• F25D 23/06 - Parois

Abrégé

Provided is a compressor comprising a body (21) that accommodates an electric motor and a compression mechanism in a sealed space, a plurality of hermetic terminals (110, 120, 130) that are respectively inserted into a plurality of through holes formed in the body (21), and a connection mechanism (200) that electrically connects the hermetic terminals to a respective plurality of external cables (310, 320, 330), wherein: the hermetic terminal (110) has a plurality of conductive pins which are inserted into an insulation part and a plurality of straps which are respectively fixed to the plurality of pins at one end of the pins; the connection mechanism (200) has a terminal block (240), a plurality of linking cables (251-259), and a plurality of bus bars (210, 220, 230) which each have one of the external cables (310, 320, 330) respectively connected thereto; and each of the plurality of linking cables (251-259) is connected to one of the plurality of bus bars (210, 220).

Classes IPC  ?

• F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
• F04B 39/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF; POMPES - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p.ex. façonnées pour former des boîtes à connexions ou à bornes

Abrégé

This compressor comprises: an oil level tank (60) that is provided adjacent to a housing (11) and measures the height of the surface of an oil in an oil reservoir; a pressure-equalizing pipe (62) that is connected at one end to an adjacent side surface (11a) of the housing (11) and connects the housing (11) and the oil level tank (60); and a lower pipe (61) that is connected at one end to the adjacent side surface (11a) and connects the housing (11) and the oil level tank (60). The pressure-equalizing pipe (62) has a housing-side pipe (81) that is connected to the housing (11), an oil level tank–side pipe (82) that is connected to the oil level tank (60), and a U-shaped U-pipe (83) that connects the housing-side pipe (81) and the oil level tank–side pipe (82). The U-pipe (83) is inserted into the housing-side pipe (81) and the oil level tank–side pipe (82) from above.

Classes IPC  ?

• F04B 39/02 - Lubrification
• F04B 39/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF; POMPES - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04C 28/28 - Dispositions de sécurité; Surveillance
• F04C 29/02 - Lubrification; Séparation du lubrifiant

Abrégé

Provided is a compressor capable of reducing initial costs. This compressor comprises: a housing (11); a rotary shaft (15) which is accommodated in the housing (11) and rotates about an axis; a rotary compression mechanism which is connected to the lower end of the rotary shaft (15) and compresses and discharges a refrigerant; an electric motor (14) which has a rotor (38) fixed to the rotary shaft (15) and having a rotor passage (38a) that passes through the rotor in the direction of the axis and guides the refrigerant discharged from the rotary compression mechanism to an upper side, the electric motor causing the rotary shaft (15) provided at the axial center of the rotary shaft (15) to be rotated; a scroll compression mechanism which is connected to the upper end of the rotary shaft (15) and suctions and compresses the refrigerant discharged from the rotor passage (38a); and a tubular guide tube (43) which is provided above the rotary compression mechanism and guides the refrigerant discharged from the rotary compression mechanism to the rotor passage (38a). The guide tube (43) is disposed to overlap the rotor (38) when viewed in the axial direction.

Classes IPC  ?

• F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressibles; Installations de pompage spécialement adaptées pour les fluides compressibles; Pompes multiétagées spécialement adaptées pour les fluides compressibles
• F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p.ex. caractéristiques de structure de l'admission ou de l'échappement
• F04B 39/12 - Carcasses d'enveloppe; Cylindres; Culasses; Connexions des tubulures pour fluide

Abrégé

Provided is a compressor capable of reducing the vibration of an oil return pipe. A compressor (1) comprises: a housing (11) containing a rotation shaft (15), a scroll compression mechanism (13), and an upper bearing (31), and having an oil reservoir (O1) underneath; and an oil return pipe (67) provided in the housing (11), and having one end fixed to the upper bearing (31) and another end extending toward the oil reservoir (O1) so that the oil held by the upper bearing (31) can return to the oil reservoir (O1). A plurality of the oil return pipes (67) are provided in parallel such that the longitudinal axes thereof are parallel to each other, and the plurality of oil return pipes (67) are bundled together.

Classes IPC  ?

• F04C 29/02 - Lubrification; Séparation du lubrifiant
• F04B 39/02 - Lubrification

Abrégé

A vehicle air conditioner includes: a refrigeration cycle in which a refrigerant circulates; a high-temperature cycle in which a first heat medium in liquid form heated by the refrigeration cycle circulates; a low-temperature cycle in which a second heat medium in liquid form cooled by the refrigeration cycle circulates; and a seat that is provided in a vehicle interior and has a warm flow passage and a cold flow passage disposed close to each other. The warm flow passage is provided on the route of the high-temperature cycle, and the cold flow passage is provided on the route of the low-temperature cycle.

Classes IPC  ?

• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation
• B60H 1/32 - Dispositifs de refroidissement

Abrégé

Provided is a compressor capable of introducing as little oil as possible to a higher-side compressing mechanism. A compressor (1) comprises: a rotary compressing mechanism (12) connected to a lower end of a rotation shaft (15), and which compresses and ejects a refrigerant into a housing (11); a scroll compressing mechanism (13) connected to an upper end of the rotation shaft (15), and which takes in and compresses the refrigerant ejected into the housing (11); and a cover (45) having, at a lower end thereof, an intake opening (45a) through which the refrigerant ejected from the scroll compressing mechanism (13) is taken in from around the rotation shaft (15), and partitioning a space inside the housing (11) so as to guide the refrigerant to an intake side of the scroll compressing mechanism (13). The intake opening (45a) of the cover (45) is provided inside an upper coil end (39b) of an electric motor (14) and below an upper end of the upper coil end (39b).

Classes IPC  ?

• F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressibles; Installations de pompage spécialement adaptées pour les fluides compressibles; Pompes multiétagées spécialement adaptées pour les fluides compressibles
• F04C 29/02 - Lubrification; Séparation du lubrifiant
• F04B 39/02 - Lubrification

Abrégé

A blower unit of an air conditioner according to the present disclosure comprises: a motor; a shaft rotationally driven around an axis by the motor, and having an outer circumferential surface having a uniform outer diameter along the axial direction, and a recessed part indented radially inward from the outer circumferential surface; a cylindrical boss part fit on the outer circumferential surface of the shaft and provided to overlap the recessed part from radially outside; a connection part protruding from the boss part radially outside of the axial line; a fan having a cylindrical blade part connected to the radially outer side of the connection part and coaxial with the boss part; and a fastening member radially passing through the boss part and abutting on the bottom of the recessed part.

Classes IPC  ?

• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• F24F 1/0022 - Ventilateurs centrifuges ou radiaux

Produits et services

Air-cooled heat pump chillers; air conditioning apparatus for industrial purposes; temperature control apparatus consisting of refrigerating machines and heat exchangers that circulate and supply constant-temperature water to air conditioners and industrial equipment; air conditioning apparatus; heat pumps for industrial purposes; freezing machines and apparatus for industrial purposes; freezing machines and apparatus.

Abrégé

A system according to the present invention comprises: a power source which generates a first low voltage from a supplied high voltage; a capacitor which suppresses fluctuations in the high voltage; and a first device which operates by using the first low voltage as an electric power source and which increases its own current consumption when supply of the high voltage to the power source has stopped.

Classes IPC  ?

• H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p.ex. batterie tampon
• 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
• 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
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

A refrigeration cycle unit for a vehicle which is interposed between a vehicle exterior heat exchanger and a vehicle interior heat exchanger and performs heat exchange between secondary refrigerants flowing through each of the vehicle exterior heat exchanger and the vehicle interior heat exchanger, wherein the refrigeration cycle unit for a vehicle comprises a base section and a refrigeration cycle fixed to a main surface of the base section and including a compressor, a condenser, an expansion valve, and an evaporator connected sequentially by piping through which a primary refrigerant flows, and the compressor, the condenser, and the evaporator are fixed on the base section so that the lengthwise directions thereof match.

Classes IPC  ?

• B60H 1/22 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée autrement que de l'installation de propulsion

Abrégé

Provided is a refrigeration cycle unit for vehicle which is interposed between a vehicle exterior heat exchanger and a vehicle interior heat exchanger and carries out heat exchange between secondary refrigerants flowing through the vehicle interior heat exchanger and the vehicle exterior heat exchanger, respectively, the refrigeration cycle unit for vehicle being provided with a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant sequentially flows, and the distance between the compressor and the evaporator is longer than the distance between the compressor and the condenser.

Classes IPC  ?

• B60H 1/22 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée autrement que de l'installation de propulsion
• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation

Abrégé

Provided is refrigeration cycle unit for vehicles that is interposed between an vehicle-exterior heat exchanger and a vehicle-interior heat exchanger and that exchanges heat between respective secondary refrigerants flowing through the vehicle-exterior heat exchanger and the vehicle-interior heat exchanger, said refrigeration cycle unit for vehicles comprising: a refrigeration cycle that is provided in a device accommodation space inside a vehicle, and that has a compressor, a condenser, an expansion valve, and an evaporator through which a combustible primary refrigerant having a higher specific gravity than air flows sequentially; and a leakage sensor that is positioned lower than the compressor, the condenser, and the evaporator, and that is capable of detecting the concentration of the primary refrigerant contained in the atmosphere in the device accommodation space.

Classes IPC  ?

• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation

Abrégé

This transport refrigeration unit comprises: a casing that has a back-surface plate fixed to the front surface of a trailer; an electrical box that is provided inside the casing and in which electrical components are accommodated; a first fixing part that fixes the electrical box to the back-surface plate; and a second fixing part that fixes the electrical box to the casing more forward than the back-surface plate.

Classes IPC  ?

• F25D 11/00 - Dispositifs autonomes déplaçables associés à des machines frigorifiques, p.ex. réfrigérateurs ménagers
• F25D 19/00 - Disposition ou montage des groupes frigorifiques dans les dispositifs
• B60P 3/20 - Véhicules adaptés pour transporter, porter ou comporter des charges ou des objets spéciaux pour le transport de marchandises réfrigérées

Abrégé

This transport refrigerator unit comprises a casing having a rear plate that can be attached to a trailer and a bottom plate that extends forward from the bottom end of the rear plate and can be attached to the trailer, the casing having an interior in which various devices can be stored. The casing is formed with an opening extending across the rear plate and the bottom plate, the opening providing communication between the inside and outside of the casing and allowing piping and/or wiring to be drawn out. The opening has a rear opening on the rear plate side, and a bottom opening on the bottom plate side, connected to the bottom end of the rear opening.

Classes IPC  ?

• F25D 11/00 - Dispositifs autonomes déplaçables associés à des machines frigorifiques, p.ex. réfrigérateurs ménagers
• F25D 19/00 - Disposition ou montage des groupes frigorifiques dans les dispositifs

Abrégé

This transport refrigeration unit comprises: a casing that has a back-surface plate extending in the vertical direction; and a compressor that is accommodated within the casing, and has an oil reservoir part disposed inclined toward one side in the axial direction and for accumulating refrigeration machine oil. The axis of the compressor is inclined with respect to the back-surface plate such that the oil reservoir part is positioned therebelow.

Classes IPC  ?

• F25D 11/00 - Dispositifs autonomes déplaçables associés à des machines frigorifiques, p.ex. réfrigérateurs ménagers
• F25D 19/00 - Disposition ou montage des groupes frigorifiques dans les dispositifs
• B60P 3/20 - Véhicules adaptés pour transporter, porter ou comporter des charges ou des objets spéciaux pour le transport de marchandises réfrigérées

Abrégé

This transport refrigeration unit comprises: a casing; an electric box which is disposed inside the casing and in which electric equipment is housed; and a heat sink having a cooling plate disposed along a to-be-cooled surface of the electric box and a plurality of fins that protrude from the cooling plate and that are arranged so as to extend along the cooling plate. The casing has a refrigeration inlet port which is disposed so as to oppose the to-be-cooled surface and to interpose, together with the to-be-cooled surface, the heat sink therebetween and which enables introduction of air to the inside.

Classes IPC  ?

• F25D 11/00 - Dispositifs autonomes déplaçables associés à des machines frigorifiques, p.ex. réfrigérateurs ménagers
• F25D 19/00 - Disposition ou montage des groupes frigorifiques dans les dispositifs
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A freezing apparatus comprising: a main circuit through which a refrigerant flows; a plurality of compressors; a non-return valve; a condenser; a receiver; a first expansion valve; an evaporator; an injection flowpath; an electromagnetic valve disposed upon the injection flowpath; a fluid level detection unit that detects the amount of refrigerant stored inside the receiver; and a control unit. The control unit closes the first expansion valve prior to stopping the compressors and closes the electromagnetic valve at the point that the fluid level detection unit has detected that the amount of fluid component inside the receiver has reached a predetermined upper value.

Classes IPC  ?

• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée
• F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur

Abrégé

Provided is a compressor with which it is possible to minimize an increase in pressure of a refrigerant in a space formed between a discharge valve and a retainer. The compressor comprises a fixed end plate (31a) having formed therein a discharge port (37) through which a compression chamber and a discharge chamber (35) communicate, a discharge valve (70) that opens and closes a discharge opening (37a) positioned on the discharge chamber (35) side of the discharge port (37), and a retainer (80) that regulates the amount of flexure of the discharge valve (70), the retainer (80) having a through-hole (81) passing through the upper and lower surfaces of the retainer (80), and the through-hole (81) being formed directly above the discharge opening (37a) and directly above the portion of the fixed end plate (31a) where the discharge opening (37a) is not formed.

Classes IPC  ?

• F04B 39/10 - Adaptation ou aménagement des organes de distribution

Abrégé

The objective of the present invention is to provide a compressor with which it is possible to simplify the manufacture of a soundproof cover. A compressor (1) is provided in an air conditioning device for an automobile. The compressor (1) is provided with: a main body portion which has a discharge port (12) and which compresses a refrigerant; and a soundproof cover (20) which includes a first cover (30) and a second cover (40), separate from the first cover (30), and inside which an internal space is formed, the main body portion being accommodated in the internal space. The soundproof cover (20) includes, in a part in which the first cover (30) and the second cover (40) face one another: a contacting portion (24) in which the first cover (30) and the second cover (40) are in contact with one another, thereby separating the internal space and an external space outside the soundproof cover (20); and a spaced-apart portion (25) in which the first cover (30) and the second cover (40) are separated from one another to form a first opening (26) connecting the internal space and the external space. The discharge port (12) is inserted through the first opening (26).

Classes IPC  ?

• F04B 39/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF; POMPES - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• B60H 1/32 - Dispositifs de refroidissement
• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation

Abrégé

Provided is a ceiling-suspended indoor unit that enables visual confirmation of dirt and clogging in the vicinity of a drain socket and enables cleaning around the drain socket without disassembling a housing, a drain pan, and the like. The indoor unit comprises: a housing (10) defining therein a fan chamber (18) in which a fan is disposed and a heat exchange chamber (19) in which a heat exchanger is disposed; a drain pan disposed in the heat exchange chamber (19) below the heat exchanger; and a drain socket (44) that communicates between the heat exchange chamber (19) and the fan chamber (18) and discharges drain water accumulated in the drain pan, wherein an opening (21) that communicates with the heat exchange chamber and allows the drain socket (44) to be seen from the outside of the housing (10) is formed in a side panel (11) of the housing (10).

Classes IPC  ?

• F24F 13/22 - Moyens pour éviter la condensation ou pour évacuer le condensat
• F24F 13/20 - Enveloppes ou couvercles

Abrégé

This reactor is equipped with a core comprising a plurality of electromagnetic steel plates layered in the thickness direction, and a coil comprising wire wound around the core. The electromagnetic steel plates include: a pair of outer components having a first part extending in a first direction and a plurality of second parts arranged at intervals in the first direction and extending from the first parts in a second direction orthogonal to the first direction; a central component facing the plurality of second parts from the second direction and connecting the second parts to each other in the first direction; and a plurality of fin-forming sections arranged at intervals in the first direction and protruding in the second direction from the edge of the first parts on the opposite side from the second parts.

Classes IPC  ?

• H01F 30/10 - Transformateurs monophasés
• H01F 37/00 - Inductances fixes non couvertes par le groupe
• H01F 27/24 - Noyaux magnétiques
• H01F 27/245 - Noyaux magnétiques fabriqués à partir de tôles, p.ex. à grains orientés

Abrégé

This reactor is provided with: a core comprising a plurality of electromagnetic steel plates laminated in the thickness direction; and, a coil comprising wire wound around the core. The electromagnetic steel plate has: a pair of outer components having a first portion that extends in a first direction, and a plurality of second portions that extend from the first portion in a second direction orthogonal to the first direction and are arranged at intervals in the first direction; a central component for connecting the plurality of second portions to each other in the first direction with the second portions opposed from the second direction; and, a plurality of fin formation sections that protrude in the second direction from the end edge of the first portion on the side opposite to the second portion and are arranged at intervals in the first direction.

Classes IPC  ?

• H01F 37/00 - Inductances fixes non couvertes par le groupe
• H01F 27/24 - Noyaux magnétiques
• H01F 27/245 - Noyaux magnétiques fabriqués à partir de tôles, p.ex. à grains orientés
• H01F 30/10 - Transformateurs monophasés

Abrégé

This electromagnetic steel plate for a reactor comprises: a central component including a plate-like first portion extending in a first direction, and six second portions integrally provided with the first portion and comprising three on either side in a second direction orthogonal to the first direction, the second portions protruding from the first portion and having a plate-like shape extending in the same plane as the first portion; and an outer component having an area such that, in a state in which a pair of the central components are combined such that the respective three second portions are opposed to each other, a gap between the second portions adjacent to each other can be filled, the outer component having a plate-like shape extending in the same plane as the first portion.

Classes IPC  ?

• H01F 37/00 - Inductances fixes non couvertes par le groupe
• H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateurs; Appareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
• H01F 27/24 - Noyaux magnétiques
• H01F 27/245 - Noyaux magnétiques fabriqués à partir de tôles, p.ex. à grains orientés

Abrégé

This ceiling-embedded air conditioner comprises: a motor having an output shaft rotatable about an axis; a turbo fan attached to the output shaft; and a heat exchanger that surrounds the turbo fan from the outer peripheral side and has a dimension in the axial direction which is larger than the dimension of the outlet flow path of the turbo fan in the axial direction. The turbo fan has: a main plate that is attached to the output shaft and has a disk shape about the axis; a shroud that is axially spaced apart from the main plate; an array of a plurality of circumferentially spaced-apart main blades provided across the shroud and the main plate; and a guide member having a guide surface that faces the shroud side while protruding circumferentially from a pressure surface, which is the surface of the main blade facing the forward side of the output shaft in the rotational direction.

Classes IPC  ?

• F24F 1/0022 - Ventilateurs centrifuges ou radiaux
• F24F 1/0047 - Climatiseurs individuels pour le conditionnement de l'air, p.ex. éléments séparés ou monoblocs ou éléments recevant l'air primaire d'une station centrale Éléments intérieurs, p.ex. ventilo-convecteurs caractérisés par des dispositions de montage fixés dans le ou au plafond
• F04D 29/30 - Aubes

Abrégé

An air conditioning device for a vehicle includes: a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a refrigerant is sequentially flowed; a high-temperature heat medium circuit through which a high-temperature heat medium has exchanged heat with the refrigerant in the condenser is circulated; a low-temperature heat medium circuit through which a low-temperature heat medium has exchanged heat with the refrigerant in the evaporator is circulated; a connection line connecting the high-temperature heat medium circuit to the low-temperature heat medium circuit; vehicle interior heat exchangers allowed to be introduced the heat medium thereinto; and a switching unit which switches an operation state of the air conditioning device to a first mode allowing to connect the vehicle interior heat exchangers to the high-temperature heat medium circuit, a second mode allowing to connect the vehicle interior heat exchangers to the low-temperature heat medium circuit, or a third mode not allowing to connect the vehicle interior heat exchangers to any one of the high-temperature heat medium circuit and the low-temperature heat medium circuit.

Classes IPC  ?

• B60H 1/32 - Dispositifs de refroidissement
• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation
• B60H 1/14 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée de l'installation de propulsion autrement que par le liquide de refroidissement de l'installation

Abrégé

This fin comprises a plate-shaped substrate part (10) having a heat transfer tube passing part, which is a circular shape centered on a central axis C and through which a heat transfer tube passes, and a louver part at which a first silt is formed by a first louver (21). The louver part has a flat section (16), the first louver (21) that is provided on the downstream side of the flat section (16) and protrudes more in the Z-axis direction than the flat section (16), and a second louver (22) that is provided on the downstream side of the first louver (21). The second louver (22) has a linear part (22b) at which the shape of the cross-section thereof when cut in the XZ plane is linear, a second louver upstream part (22a) bending obliquely in the upstream direction from the upstream end of the linear part (22b) and extending linearly, and a second louver downstream part (22c) bending obliquely in the downstream direction from the downstream end of the linear part (22b) and extending linearly. The linear part (22b) is disposed so as to overlap with the heat transfer tube passing part when viewing the cross-section.

Classes IPC  ?

• F28F 1/32 - Eléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p.ex. avec des ailettes, avec des saillies, avec des évidements ces moyens étant uniquement à l'extérieur de l'élément tubulaire et s'étendant transversalement les moyens ayant des parties engageant d'autres éléments tubulaires

Abrégé

This heat exchanger comprises: a pair of plates that face each other; and an inner fin which is provided between the plates and in which a fluid circulates. The inner fin has a plurality of offset fins which are arranged side by side in the flowing direction of the fluid and are provided such that the positions thereof are mutually offset in the width direction orthogonal to the flowing direction. The offset fins include: plate joint parts which are joined to the plates and have steps formed in the flowing direction; fin parts provided along the opposing direction of the plates and connected to the plate joint parts; and reception slopes which are provided to the plate joint parts obliquely to the flowing direction and which receive the fluid from the steps.

Classes IPC  ?

• F28F 3/06 - Eléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p.ex. avec des ailettes, avec des évidements, avec des ondulations les moyens pouvant être fixés sur l'élément
• F28F 13/12 - Dispositions pour modifier le transfert de chaleur, p.ex. accroissement, diminution en affectant le mode d'écoulement des sources de potentiel calorifique en créant une turbulence, p.ex. par brassage, par augmentation de la force de circulation
• F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation

Abrégé

The present invention provides a vehicle air conditioning system and a vehicle air conditioning method that increase heating performance while recovering exhaust heat from onboard equipment.　The vehicle air conditioning system comprises: a refrigerant circuit; a heat medium circuit including a high-temperature medium circuit and a low-temperature medium circuit; an interior heat exchanger that exchanges heat between a heat medium and air; an exterior heat exchanger that exchanges heat between the heat medium and outside air; an exhaust heat recovery circuit; and a switching part. The following are provided as operating modes: an exhaust heat–recovery heating mode in which the heat medium in the high-temperature medium circuit is supplied to the interior heat exchanger and exhaust heat from onboard equipment is recovered by the heat medium in the low-temperature medium circuit, while the heat medium that has recovered and transferred exhaust heat to the refrigerant is supplied to the exterior heat exchanger; and an exhaust-heat-as-main-heat-source heating mode in which the heat medium in the high-temperature medium circuit is supplied to the interior heat exchanger and exhaust heat from onboard equipment is recovered by the heat medium in the low-temperature medium circuit, while the heat medium that has recovered and transferred exhaust heat to the refrigerant is caused to bypass the exterior heat exchanger.

Classes IPC  ?

• B60H 1/22 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée autrement que de l'installation de propulsion
• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation

Abrégé

Provided are an insulation which has a simple shape and does not waste a material, an evaporator structure, a cutting die, and a method for producing an insulation. An insulation (30) provided for an evaporator of an air conditioning device for vehicle comprises: a rectangular strip portion (31) which extends in a predetermined direction; a pair of rectangular first wing portions (32) each of which protrudes in a crossing direction orthogonal to the predetermined direction from each of long sides (31c, 31d) of the strip portion (31) at one end (31a) of the strip portion (31); and a pair of rectangular second wing portions (33) each of which protrudes in the crossing direction orthogonal to the predetermined direction from each of the long sides (31c, 31d) of the strip portion (31) further on the other end (31b) side than the one end (31a) of the strip portion (31).

Classes IPC  ?

• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation
• B60H 1/32 - Dispositifs de refroidissement

Abrégé

Provided is a switch which achieves cost reduction and reduction in man-hours required for assembly. This switch comprises: a casing (10) having a wall part (12); two rubber domes that are provided to face each other with the wall part (12) sandwiched therebetween and give a click feeling; a lever main body (30) having a holding part (31) that is provided to be rotatable about an axis X with respect to the casing (10) and holds the rubber domes and a contact part that is in contact with a detector switch. The inner peripheral surface of the holding part (31) is formed into an arch shape with the wall part (12) put therein, the two rubber domes are provided integrally with an elastic sheet member (40), and the sheet member (40) is bent along the arch shape of the inner peripheral surface and held by the holding part (31).

Classes IPC  ?

• H01H 21/00 - Interrupteurs actionnés par un organe moteur en forme d'élément pivotant entraîné directement par un corps solide, p.ex. une main
• H01H 21/50 - Mécanismes moteurs avec moyens assurant l'arrêt à des positions de travail intermédiaires

Abrégé

The purpose of the present invention is to improve freedom of design. An electric compressor 1 comprises: a motor (17) that drives a scroll compression mechanism (7) for compressing a refrigerant; an inverter that drives the motor (17); a housing (2) that holds a refrigerant packed therein, and that accommodates the motor (17); and a lower case (40) that connects to the housing (2), which is provided beside the lower case in the axial direction, and that accommodates the inverter. The housing (2) has a cylindrical first connecting part (51) centered on a central axis (C) extending in the axial direction. The lower case (40) has a cylindrical second connecting part (55) centered on the central axis (C) extending in the axial direction. The outer peripheral surface of the first connecting part (51) and the inner peripheral surface of the second connecting part (55) are in contact with each other.

Classes IPC  ?

• F04B 39/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF; POMPES - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/12 - Carcasses d'enveloppe; Cylindres; Culasses; Connexions des tubulures pour fluide
• H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p.ex. façonnées pour former des boîtes à connexions ou à bornes
• F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes

Abrégé

The converter device for converting power from an AC power source into DC power through a converter circuit comprises: a load determination unit that determines which of a low-load operation and a high-load operation the operation state is on the basis of the result of detecting current flowing through a load; a frequency determination unit that determines a switching frequency for the converter circuit in accordance with the operation state; and a region specification unit that specifies a restriction clear frequency region which is a frequency region satisfying noise restrictions. The frequency determination unit determines the switching frequency to be a frequency in which a reactor loss is smallest among frequencies belonging to the restriction clear frequency region when the operation state is the high-load operation.

Classes IPC  ?

• H02M 7/12 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
• H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

The present invention provides a cabin vehicle air-conditioning device with which the heat dissipation efficiency can be increased without changing the height dimension of heat dissipation fins. The device comprises: a casing having an air inlet and an air outlet, and in which a flow channel causing the air inlet and the air outlet to communicate with each other is formed; a fan which is housed in the casing and which generates a flow of air from the air inlet, through the flow channel, and to the air outlet; a heat-generating part provided outside the casing; and a heat-dissipating part, wherein the heat-dissipating part is thermally connected to the heat-generating part and includes a base (31) having an installation surface (31a) and a plurality of plate-like fins (32) which are disposed in the flow channel, extend along the direction of air flow, and stand upright from the installation surface (31a) in a direction orthogonal to the direction of the flow, and a plurality of ridges (33) formed along the direction of the flow are provided over the upright direction of the fins (32) on the surfaces of the plurality of fins (32).

Classes IPC  ?

• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

The purpose of the present invention is to provide a light guide plate with which it is possible to prevent light unevenness and improve appearance, and a light emitting device using the same. A light guide plate (11) is provided with: a light incidence surface (12) on which light is incident; a light emission surface (13) which faces the light incidence surface (12) and from which light incident from the light incidence surface (12) is emitted; and a flat plate-shaped light guide member (14) which guides the light incident from the light incidence surface (12) to the light emission surface (13). The light guide member (14) has a widening part (16) that widens outward in a plate width direction from the light incidence surface (12) toward the light emission surface (13), and in a cross-section parallel to the light emission surface (13) on the light emission surface (13) side of the light guide member (14), the light guide member (14) has a larger plate thickness at least on one end side in the plate width direction on the side farther from the light incidence surface (12) than the plate thicknesses of the other portions.

Classes IPC  ?

• F21V 8/00 - Utilisation de guides de lumière, p.ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• F21Y 115/10 - Diodes électroluminescentes [LED]
• B60Q 3/14 - Agencement des dispositifs d’éclairage pour l’intérieur des véhicules; Dispositifs d’éclairage spécialement adaptés à l’intérieur des véhicules pour tableaux de bord Éclairage à travers la surface à éclairer
• B60Q 3/64 - Agencement des dispositifs d’éclairage pour l’intérieur des véhicules; Dispositifs d’éclairage spécialement adaptés à l’intérieur des véhicules caractérisés par les aspects optiques utilisant des guides de lumière pour un seul dispositif d’éclairage

Abrégé

The purpose of the present invention is to improve heat exchange efficiency. This turbo freezer comprises a compressor that compresses refrigerant, a condenser that condenses the refrigerant compressed by the compressor, an expansion valve that expands the refrigerant condensed by the condenser, an evaporator (5) that evaporates the refrigerant expanded by the expansion valve, and an expansion valve control unit that controls the aperture of the expansion valve. The evaporator (5) has: a pressure container (11) forming an outer shell; a heat transfer pipe group (16) accommodated inside the pressure container (11), the heat transfer pipe group (16) having a plurality of heat transfer pipes (16a) disposed so as to be lined up in the vertical direction; a refrigerant tray (13) that supplies the refrigerant to the heat transfer pipe group (16) from above; and an eductor (10) for guiding refrigerant that is retained in a lower section of the pressure container (11) and that is not evaporated by the heat transfer pipe group (16) to the refrigerant tray (13). The expansion valve control unit controls the aperture of the expansion valve such that the liquid level of refrigerant retained in a lower section of a casing reaches a level that corresponds to the amount of refrigerant circulated by the eductor (10), said amount changing according to operating conditions of a turbo freezing apparatus.

Classes IPC  ?

• F25B 39/02 - Evaporateurs
• F25B 41/31 - Soupapes de détente

Abrégé

Provided is a refrigeration apparatus capable of stably operating while improving the efficiency of a refrigeration cycle.　The refrigeration apparatus is provided with a compression section including three or more stages of compression mechanisms, a first heat exchanger, a pressure reduction section, a second heat exchanger, a plurality of intermediate-pressure injection flow paths that are provided between a high-pressure pressure reduction mechanism and a low-pressure pressure reduction mechanism and supply a refrigerant at an intermediate pressure, which is between a high pressure and a low pressure, between the compression mechanisms, a gas-liquid separator that supplies a gas-phase refrigerant to a high-pressure intermediate-pressure injection flow path on a relatively high-pressure side among the plurality of intermediate-pressure injection flow paths, and an internal heat exchanger that supplies a refrigerant that has absorbed heat from a liquid refrigerant, which is a liquid-phase refrigerant supplied from the gas-liquid separator, by heat exchange between the liquid refrigerant and a two-phase refrigerant obtained by reducing pressure of a part of the liquid refrigerant to the intermediate-pressure injection flow path on a low-pressure side relative to the high-pressure intermediate-pressure injection flow path.

Classes IPC  ?

• F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur
• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée

Abrégé

Provided is a refrigeration device that is able to improve the efficiency of a refrigeration cycle by increasing the number of compression stages, while operating stably over a wide range of operating conditions.　This refrigeration device is provided with: a compression unit containing a plurality of stages of compression mechanisms, the number of stages N being at least 3; a first heat exchange for releasing, to the outside air, heat from a refrigerant discharged from the compression unit; a decompression unit containing a plurality of decompression mechanisms provided to each of the plurality of stages; a second heat exchanger for causing the refrigerant that has passed through the decompression unit to absorb heat from a thermal load; a plurality of gas-liquid separators provided between the decompression mechanisms; a plurality of intermediate pressure injection flow passages corresponding respectively to the plurality of gas-liquid separators and supplying gas-phase refrigerant from the corresponding gas-liquid separator to between the compression mechanisms; and a valve provided to at least one of the plurality of intermediate pressure injection flow passages. When the valve is operated the number of effective stages circulating the refrigerant changes.

Classes IPC  ?

• F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur
• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée

Abrégé

The purpose of the present invention is to improve the performance of an aspirator. A vehicular air conditioning device (1) comprises: a case body; an evaporator (20); a heater core (40); and an aspirator (50) for guiding air in a vehicle cabin to a temperature detection unit. The case body integrally comprises a case upstream unit (12) in which the evaporator (20) and the heater core (40) are stored, and a case downstream unit (13) in which the air circulated through the case upstream unit (12) is circulated. The case upstream unit (12) has a first flow passage (16a) that circulates the air in a Z-axis direction, and a second flow passage (16b) that connects to a downstream side of the first flow passage (16a), and circulates the air in a Y-axis direction. The aspirator (50) has a primary air introducing unit (53), and is mounted at a center portion of the case body. The primary air introducing unit (53) has an inlet (53d) formed at an upstream end, and introduces the air in the case body from the inlet (53d). The upstream end of the primary air introducing unit (53) is connected to the second flow passage (16b) from the Z-axis direction.

Classes IPC  ?

• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation

Abrégé

This air conditioner comprises: a casing having a blowout port opening in the horizontal direction; a blower that is provided in the casing and blows air toward the front where the blowout port is located; a vertical louver that rotates about a first axis extending in the width direction of the blowout port and thereby transitions between a closed position where the vertical louver closes the blowout port and a guide position where the vertical louver guides air forward with a downward-facing guide surface; and an air guide plate that rotates outside the rotational path of the vertical louver about a second axis, which is lower than the first axis, and thereby transitions between a standby position where the air guide plate is stored above the blowout port and an air guide position below the front of the vertical louver where the air guide plate guides forward the air guided by the guide surface.

Classes IPC  ?

• F24F 13/14 - Organes de réglage de l'écoulement d'air, p.ex. persiennes, grilles, volets ou plaques directrices mobiles, p.ex. registres à éléments basculants, p.ex. persiennes
• F24F 13/20 - Enveloppes ou couvercles

Abrégé

This electric compressor (10) has: an accommodating case (15) that accommodates an inverter device (19) and includes an accommodating section body (31), a substrate support section (32) protruding from a bottom surface (31a) of the accommodating section body (31), and a cover member (34) that closes an opening in the accommodating section body (31); and an antivibration member (17) that is positioned between one surface (51a) of a head part (51) of a bolt (16) fastened to the substrate support section (32) and an inner surface (34a) of the cover member (34), and that is bonded to the one surface (51a) of the head part (51) and the inner surface (34a) of the cover member (34).

Classes IPC  ?

• F04C 23/02 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs d'entraînement particuliers ou leurs adaptations à cet effet
• H02K 7/14 - Association structurelle à des charges mécaniques, p.ex. à des machines-outils portatives ou des ventilateurs
• H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
• H02K 11/30 - Association structurelle à des circuits de commande ou à des circuits d’entraînement
• F04C 29/06 - Etouffement du bruit
• F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c. à d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise

Abrégé

Provided are a heat exchanger that makes it possible to supply air of an appropriate temperature to a plurality of blowing ports of an air-conditioning unit, an air-conditioning unit that comprises the heat exchanger, and an air conditioner. This air-conditioning unit 10 comprises a heat exchanger 20 that exchanges heat between air and a coolant, a blower 11, and an air outflow part 12. The heat exchanger 20 comprises a plurality of tubes 21 in which the coolant flows, an inlet header 23, an outlet header 24, and a fin 22. The inlet header 23 includes: a low-temperature-side coolant inflow part 231 into which coolant that has a relatively low temperature can flow; and a high-temperature-side coolant inflow part 232 into which coolant that has a relatively high temperature can flow. The low-temperature-side coolant inflow part 231 and the high-temperature-side coolant inflow part 232 are offset from each other in the direction D1 of the flow of air that passes through the heat exchanger and in an intersecting direction D2 that intersects the direction D1 of the flow of air.

Classes IPC  ?

• F24F 13/08 - Organes de réglage de l'écoulement d'air, p.ex. persiennes, grilles, volets ou plaques directrices

Abrégé

This electric compressor control device comprises: a control unit of an inverter which controls a motor that drives a compressor; a physical quantity calculation unit which calculates, on the basis of one or a plurality of predetermined detection values acquired from the inverter, a physical quantity that varies depending on a workload of the compressor; a number-of-revolutions acquisition unit which acquires the number of revolutions of the motor; a storage unit which stores information representing a first threshold that varies depending on the number of revolutions of the motor, and defines whether or not the physical quantity is a normal value; and a refrigerant abnormality determination unit which determines whether or not there is an abnormality in a refrigerant system by comparing the calculated physical quantity with the first threshold, depending on the acquired number of revolutions.

Classes IPC  ?

• F04B 51/00 - Tests des "machines", pompes ou installations de pompage
• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• F24F 11/38 - Diagnostic des défaillances
• 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
• F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression

Abrégé

Provided is an outdoor unit in which a control board in a control box can be easily replaced. The present invention comprises: an outdoor fan (5) for introducing outside air; a compressor (13) that compresses a refrigerant; a control board that is provided with electrical components that control the outdoor fan (5) and/or the compressor (13); a control box (20) that houses the control board; a housing (3) that houses the outdoor fan (5), the compressor (13), the control board and the control box (20); and an impermeable wall (30) that separates the control box (20) from the top plate of the housing so that an upper space (R3) is formed between same and the top plate. The control board is removable is a state in which the impermeable wall (30) is fixed to the housing (3) side.

Classes IPC  ?

• F24F 1/22 - Leur agencement ou leur montage

Abrégé

A geothermal heat utilization system according to the present disclosure comprises: a well; piping having an end on a side extending toward the well; and a heat exchanger provided to the piping. The piping comprises, at the end thereof, a lift pipe connected to a pump capable of pumping groundwater in the well, and a plurality of water injection pipes each provided with a flow control valve.

Classes IPC  ?

• F24T 10/20 - Collecteurs géothermiques utilisant un fluide vecteur injecté directement dans le sol, p.ex. utilisant des puits d’injection et des puits de récupération

Abrégé

A geothermal heat utilization system according to the present disclosure comprises: a pumping well; a water injection well; piping extending from the pumping well to the water injection well; a pump capable of feeding ground water from the pumping well to the water injection well via the piping; a heat exchanger provided to the piping; a control valve that is provided to the piping and is capable of adjusting the flow rate of groundwater within the piping; and a control device that, if the operation frequency during inverter control of the pump has reached the minimum frequency, adjusts the flow rate of ground water to be injected into the water injection well by controlling the control valve so as to constrict the flow rate within the piping.

Classes IPC  ?

• F24T 10/20 - Collecteurs géothermiques utilisant un fluide vecteur injecté directement dans le sol, p.ex. utilisant des puits d’injection et des puits de récupération

Abrégé

A computation device according to the present disclosure is a computation device that determines a heat accumulation mode to be used when heat accumulation is performed by an underground heat utilization system provided with a heat source well facility and a heat accumulation support facility having a cooling tower, a freezing machine, and a refrigerant circuit. The computation device is provided with: an acquisition unit that acquires a simulation condition; a first calculation unit that calculates, on the basis of the simulation condition, a first simulation result, which is a result of simulation of a first heat accumulation mode including heat accumulation by means of the cooling tower; a second calculation unit that calculates, on the basis of the simulation condition, a second simulation result, which is a result of simulation of a second heat accumulation mode including heat accumulation by means of the freezing machine; and a determination unit that determines, on the basis of the first simulation result and the second simulation result, one of the first heat accumulation mode and the second heat accumulation mode.

Classes IPC  ?

• F24T 10/20 - Collecteurs géothermiques utilisant un fluide vecteur injecté directement dans le sol, p.ex. utilisant des puits d’injection et des puits de récupération
• F24F 3/00 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaire; Appareillage spécialement conçu pour de tels systèmes
• F24F 11/46 - Amélioration de l’efficacité électrique ou économie d’énergie électrique
• F24F 11/48 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p.ex. pour la sécurité ou la surveillance préalablement au fonctionnement normal, p.ex. préchauffage ou refroidissement préliminaire
• F24F 11/64 - Traitement électronique utilisant des données mémorisées au préalable
• F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
• F24F 11/70 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes
• F24F 110/12 - Température de l'air extérieur
• F24F 110/22 - Humidité de l'air extérieur
• F24F 140/20 - Température du fluide échangeur de chaleur
• F24F 140/60 - Consommation d'énergie

Abrégé

Provided is a scroll compressor in which: a discharge port (18) through which a compressed fluid is discharged is formed in an end plate (15A) of a fixed scroll (15); a center side compression chamber (17A) communicating with the discharge port (18) is formed between an inside end portion (15Ba) of a spiral wrap (15B) and an inside end portion (16Ba) of a spiral wrap (16B); a dorsal side compression chamber (17B) is formed between a dorsal side of the spiral wrap (15B) and a ventral side of the spiral wrap (16B); a ventral side compression chamber (17C) is formed between a ventral side of the spiral wrap (15B) and a dorsal side of the spiral wrap (16B); a cut-out portion (15Bb) providing communication between the center side compression chamber (17A) and the dorsal side compression chamber (17B) is formed on a dorsal side of a tooth tip surface facing the end plate; and a cut-out portion (16Bb) providing communication between the center side compression chamber (17A) and the ventral side compression chamber (17C) is formed on a dorsal side of a tooth tip surface facing the end plate (15A).

Classes IPC  ?

• F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c. à d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise

Abrégé

The present invention provides an improved vehicle air conditioning system and vehicle air conditioning method, the system comprising a refrigerant circuit and a heat medium circuit and including a plurality of exterior heat exchangers that cause heat exchange between outside air and the heat medium.　The vehicle air conditioning system comprises: a refrigerant circuit; a heat medium circuit; an interior heat exchanger; exterior heat exchangers, namely first and second heat exchangers disposed in series in relation to a flow of air produced by a fan; a switching unit; a detection unit for detecting the degree of frost formation; and a control device. An operating mode includes a defrost mode in which the heat medium in a high-temperature medium circuit is supplied to a defrost component selected alternatively as either the first heat exchanger or the second heat exchanger according to an operation by the switching unit, the first and second heat exchangers being connected in parallel in the heat medium circuit. In a case of determining that the first heat exchanger and the second heat exchanger both need to be defrosted, the control device preferentially selects the first heat exchanger positioned farther upwind than the second heat exchanger positioned downwind as the defrost component.

Classes IPC  ?

• B60H 1/22 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée autrement que de l'installation de propulsion

Abrégé

A geothermal heat utilization system according to the present disclosure comprises: a pumping well; an injection well; a pipe line extending from the pumping well to the injection well; a heat exchanger provided to the pipe line; a pressure sensor which detects the pressure inside the injection well; an opening/closing valve which can open/close the injection well with respect to the atmospheric air; and a control device which controls the opening/closing valve to open when the detected pressure is greater than a reference pressure.

Classes IPC  ?

• F24T 10/20 - Collecteurs géothermiques utilisant un fluide vecteur injecté directement dans le sol, p.ex. utilisant des puits d’injection et des puits de récupération
• F28D 7/10 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant disposées l'une dans l'autre, p.ex. concentriquement
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

This air-conditioning device (10) for a vehicle comprises a flow path width adjustment portion (14) that is provided at an inlet portion (11BA) of a ventilation flow path (11B) so as to be connected to the inner surface (31a) of a first side wall (31), the flow path width adjustment portion (14) having an upper end connected to a fan mounting portion (35), extending downward, and being located between a third wall (33) and a nose portion (37) in the (Y) direction. The nose portion (37) has an inclined portion (37A) that is inclined with respect to the third wall (33) such that the width of the inlet portion (11BA) increases in the (Z) direction from the inlet to the outlet of the inlet portion (11BA) of the ventilation flow path (11B). In the (Z) direction, the flow path width adjustment portion (14) is formed so as to narrow the width of the inlet portion (11BA) of the ventilation flow path (11B) in the (Y) direction.

Classes IPC  ?

• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation

Abrégé

The purpose of the present invention is to provide a power supply circuit in which the number of super capacitors used can be reduced and an air-conditioning device. This power supply circuit (1) is applied to an air-conditioning device and comprises: a power supply unit (6) that outputs a constant DC voltage to a DC line (7); a constant current unit (12) that has one end connected to the DC line (7), generates a certain voltage drop by a resistor (14), outputs a constant current, and has the other end connected to the DC line (7); a capacitor unit (15) that is connected in parallel on the output side of the constant current unit (12) and has a plurality of super capacitors (16A), (16B), (16C) connected in series; and a boost unit (11) that boosts the voltage of the DC line (7) to a predetermined voltage.

Classes IPC  ?

• H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p.ex. batterie tampon

Abrégé

Provided is an electric compressor (100) which comprises a housing (10), a compressor for compressing a refrigerant including lubricating oil, and a motor which rotationally drives the compressor, wherein: the motor comprises a stator, a rotor, a plurality of lead wires (47) connected to a plurality of coil portions (46), and protecting tubes (48) which are arranged in such a way as to surround the entire circumference of the lead wires (47), and which protect the lead wires (47) from moisture contained in the lubricating oil; the lead wires (47) are coated with a resin coating portion and are arranged in a circumferential direction (CD) around an axis (X); and the protecting tubes (48) are arranged only in a protection area (PA) in a portion of the circumferential direction (CD) including an area in which the lead wires (47) are immersed in the lubricating oil stored in an internal space (IS) of the housing (10).

Classes IPC  ?

• 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
• F04B 39/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF; POMPES - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• H02K 7/14 - Association structurelle à des charges mécaniques, p.ex. à des machines-outils portatives ou des ventilateurs

Abrégé

Provided is an outdoor unit in which a waterproof structure can be installed between a heat exchange room and a machine room. The present invention comprises: a control box (10) that has two flange portions (11) with edges (11a) facing each other; and a substrate assembly (20) that has a plate-shaped substrate (21) and radiation fins (23) arranged at a gap (G) to the installation surface of the substrate (21) in the out-of-plane direction. The substrate assembly (20) is installed in the control box (10) in a state in which the flange portions (11) are interposed in the gap (G) between the substrate (21) and the radiation fins (23).

Classes IPC  ?

• F24F 11/89 - Aménagements ou montage des dispositifs de commande ou de sécurité
• F24F 1/22 - Leur agencement ou leur montage
• F24F 1/24 - Refroidissement des composants électriques

Abrégé

This control device controls an inverter for driving a load, the control device comprising: a first generation unit for generating a first signal for performing two-phase modulation if a three-phase alternating current voltage for driving the load is generated; an acquisition unit for acquiring the weight of the load; a storage unit for storing corresponding relationships between the weight of the load and a phase shift amount of the first signal; an identification unit for identifying the phase shift amount corresponding to the weight of the load acquired by the acquisition unit in the corresponding relationship; and a second generation unit for generating a second signal in which the phase shift amount has been altered from the first signal on the basis of the phase shift amount identified by the identification unit.

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

Abrégé

This compressor comprises a compressor body, an electric motor that has a rotating shaft extending along an axis and drives the compressor body via the rotating shaft, and a housing that houses the compressor body and the electric motor. The electric motor has a rotor capable of rotating about the axis and an annular stator centered about the axis. The housing has a housing body and a pair of highly rigid parts that are provided on the outer side of the housing body in positions opposite in the radial direction and that have higher rigidity than other portions. The stator is fixed to the inner peripheral surface of the housing at a plurality of fixing points provided at positions different from points where the housing intersects with a first straight line connecting the pair of highly rigid parts and a second line orthogonal to the first straight line.

Classes IPC  ?

• F04B 39/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF; POMPES - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

This abnormality detection system comprises: a solenoid valve; a power supply which applies a voltage to a load terminal of the solenoid valve via a switch circuit and a diode; a drive circuit which drives the solenoid valve via the load terminal; a first detection unit which detects a voltage indicating the state of the drive circuit; a second detection unit which detects a voltage associated with a voltage of the load terminal of the solenoid valve; and a determination unit which determines whether the load terminal is in a ground fault state on the basis of the detection result from the first detection unit and the detection result from the second detection unit when the switch circuit is in an ON state.

Classes IPC  ?

• F16K 31/06 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un aimant
• G01R 31/00 - Dispositions pour tester les propriétés électriques; Dispositions pour la localisation des pannes électriques; Dispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
• G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre

Abrégé

The purpose of the present invention is to facilitate an operation for securing an air-conditioner component. This mechanism for securing an air-conditioner component is for securing an air-conditioner component accommodated inside a casing (2). The securing mechanism comprises: a right-side securing part and left-side securing part (17) that secure a heat exchange unit (10) to the casing (2) by means of right-side securing bolts and left-side securing bolts (17b), respectively; and a right-side temporary stopping part and left-side temporary stopping part (18) that are capable of temporarily stopping the heat exchange unit (10) so as to allow movement in the axial direction of the right-side securing bolts and left-side securing bolts (17b), respectively, and so as to restrict movement in a direction intersecting the axial direction.

Classes IPC  ?

• F24F 1/0007 - Climatiseurs individuels pour le conditionnement de l'air, p.ex. éléments séparés ou monoblocs ou éléments recevant l'air primaire d'une station centrale Éléments intérieurs, p.ex. ventilo-convecteurs
• F24F 1/0063 - Climatiseurs individuels pour le conditionnement de l'air, p.ex. éléments séparés ou monoblocs ou éléments recevant l'air primaire d'une station centrale Éléments intérieurs, p.ex. ventilo-convecteurs caractérisés par des échangeurs de chaleur par le montage ou la disposition des échangeurs de chaleur

Abrégé

An air conditioner comprising a casing that has an intake port and an outlet, a heat exchanger provided in the casing, a fan that is provided in the casing and causes air to flow through the intake port, the heat exchanger, and the outlet in the stated order, and an irradiation part provided in the casing, the irradiation part having a light source that projects directional ultraviolet rays and a drive part that drives so that the orientation of the light source changes.

Classes IPC  ?

• F24F 1/0071 - Climatiseurs individuels pour le conditionnement de l'air, p.ex. éléments séparés ou monoblocs ou éléments recevant l'air primaire d'une station centrale Éléments intérieurs, p.ex. ventilo-convecteurs comportant des moyens de purification de l’air fourni

Abrégé

The purpose of the present invention is to provide an air conditioner control device, an air conditioner, an air conditioning method, and an air conditioning program with which comfort evaluation can be performed more effectively. An air conditioner configured using an indoor unit and an outdoor unit, wherein a control device (20) is provided with: an acquisition unit (21) for acquiring temperature information, humidity information, and carbon dioxide concentration information of a room being air-conditioned; and, an evaluation unit (22) for evaluating the comfort of a user in the room on the basis of the temperature information, humidity information, and concentration information.

Classes IPC  ?

• F24F 11/50 - Aménagements de commande ou de sécurité caractérisés par des interfaces utilisateurs ou par la communication
• F24F 11/63 - Traitement électronique
• F24F 11/74 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de l’apport en air traité, p.ex. commande de la pression pour la commande du débit d'air ou de la vitesse de l’air
• F24F 110/10 - Température
• F24F 110/12 - Température de l'air extérieur
• F24F 110/20 - Humidité
• F24F 110/64 - Teneur en particules en suspension
• F24F 110/65 - Teneur en substances spécifiques ou en contaminants
• F24F 110/70 - Dioxyde de carbone

Abrégé

Provided is an indoor unit for an air conditioner, capable of preventing the interior of the indoor unit from being in a high humidity state for a long period of time. The present invention comprises: a housing (10) that has a space (13) formed inside and an air outlet (11) communicating between the space (13) and the outside; a flap (20) that opens and closes the air outlet (11); an ozone generator (40) that is disposed in the space (13); and a control unit. After the cooling or dehumidification operation is stopped, the control unit generates ozone from the ozone generator (40) when the air outlet (11) is in the open state, not closed by the flap (20).

Classes IPC  ?

• F24F 11/61 - Aménagements de commande ou de sécurité caractérisés par des interfaces utilisateurs ou par la communication utilisant des minuteurs
• F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
• F24F 11/74 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de l’apport en air traité, p.ex. commande de la pression pour la commande du débit d'air ou de la vitesse de l’air
• F24F 11/79 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de l’apport en air traité, p.ex. commande de la pression pour la commande de la direction de l’air fourni
• F24F 1/008 - Climatiseurs individuels pour le conditionnement de l'air, p.ex. éléments séparés ou monoblocs ou éléments recevant l'air primaire d'une station centrale Éléments intérieurs, p.ex. ventilo-convecteurs comportant des moyens pour parfumer ou désodoriser
• F24F 1/0355 - Climatiseurs individuels monoblocs pour le conditionnement de l'air, c. à d. avec tout l'appareillage nécessaire au traitement placé dans une enveloppe comportant des moyens pour parfumer ou désodoriser

Abrégé

The purpose of the present invention is to provide a control device, a heat source system, a control method, and a control program with which a heat medium at a required temperature can be more effectively sent out. This control device, which is applied to a heat source system 1 comprising a plurality of heat source machines (2a), (2b) connected in series, comprises a setting unit which sets the outlet setting temperatures of cool water in the respective heat source machines (2a), (2b) on the basis of: a measured value of a cool water flow rate, measured values of inlet temperatures of the cool water in the respective heat source machines (2a), (2b); and the required outlet temperature of the cool water in the heat source system (1).

Classes IPC  ?

• F24F 5/00 - Systèmes ou appareils de conditionnement d'air non couverts par ou
• F24F 11/70 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes
• F24F 140/20 - Température du fluide échangeur de chaleur

Abrégé

This update device is connected to a communication line connecting a plurality of indoor and outdoor units, and comprises: a reduction instruction unit which transmits, to a plurality of indoor and outdoor units, an instruction to reduce the communication frequency of control signals transmitted and received between the plurality of indoor and outdoor units via the communication line; an update processing unit which carries out a programme update processing on target indoor or outdoor units; and a restoration instruction unit which transmits, to the plurality of indoor and outdoor units, an instruction to restore the communication frequency of the control signals.

Classes IPC  ?

• F24F 11/54 - Aménagements de commande ou de sécurité caractérisés par des interfaces utilisateurs ou par la communication utilisant une unité de commande centrale connectée à des sous-unités de commande
• F24F 11/56 - Commande à distance
• G06F 8/65 - Mises à jour

Abrégé

A control device for a permanent magnet synchronous motor, the control device comprising: a means for setting voltage commands on two axes of a rotational orthogonal coordinate system; a means for coordinate-converting the voltage commands of the two axes into a three-phase voltage command; a means for applying the three-phase voltage command to a motor through power conversion by an inverter; a means for feeding back a terminal current of the motor; a means for determining a power-factor angle from the feedback current; and a means for adding or subtracting the power-factor angle to/from a phase to be used when the terminal current of the motor obtained in three phases is converted into orthogonal coordinates, wherein the control device further comprises: a holding unit for holding a relationship between the fluctuation of a DC voltage supplied to the inverter and a correction value of the phase; and a means for adding the correction value to at least one of a phase to be used in three-phase/two-phase conversion for converting three phases into two phases and a phase to be used in two-phase/three-phase conversion for converting two phases into three phases.

Classes IPC  ?

• H02P 21/05 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p.ex. par commande de l’orientation du champ spécialement adaptés pour amortir les oscillations des moteurs, p.ex. pour la réduction du pompage
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

This update device is connected to a communication line connecting a plurality of indoor and outdoor units, and comprises: an error notification invalidation instruction unit which instructs a plurality of indoor and outdoor units not to execute an error notification even if a response has not been received from the indoor and outdoor units that are to be updated; an update processing unit which carries out a programme update processing on the indoor or outdoor units that are to be updated; and an error notification validation instruction unit which instructs an error notification to be executed if a response has not been received from the indoor and outdoor units that are to be updated.

Classes IPC  ?

• G06F 8/65 - Mises à jour

Abrégé

Provided is a bleeding device capable of efficiently discharging air. This bleeding device is provided with a bleed pipeline (71) which is connected to a condenser (12) to bleed a mixed gas containing a refrigerant gas and air from the condenser (12), a separating membrane (23b) which is provided in the bleed pipeline (71), and which employs a pressure differential to separate the air from the mixed gas bled using the bleed pipeline (71), a venting pipeline (81) for guiding gas including the air separated by the separating membrane (23b) to the outside, a first valve (24) provided in the venting pipeline (81), a vacuum pump (27) which is provided on the downstream side of the first valve (24) in the venting pipeline (81), and which discharges the gas in the venting pipeline (81) to the outside, and a control unit (50), wherein the control unit (50) operates the vacuum pump (27) and opens the first valve (24), and upon detecting that a predetermined amount of air has permeated through the separating membrane (23b), closes the first valve (24) to stop the permeation of air due to the pressure differential.

Classes IPC  ?

• F25B 43/04 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur pour l'évacuation des gaz non condensables

Abrégé

The purpose of the present invention is to improve insulating properties. This terminal unit (30) comprises: a plate-shaped base unit (40); a plate-shaped insulation unit (51) and a fitting insulation unit (52) that cover the plate surface of the base unit; a terminal (70) that extends in the Z axis direction, which is the direction intersecting the plate surface of the base unit (40), and penetrates the base unit (40) and the plate-shaped insulation unit (51); and an upper cylinder insulation unit (53) that extends along the Z axis direction from the plate-shaped insulation unit (51) and covers the side surface of the terminal (70). The plate-shaped insulation unit (51) and the upper cylinder insulation unit (53) are formed integrally.

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

This light illumination unit comprises: a heat sink that has a plate-shaped heat sink body and fins protruding from a first main surface of the heat sink body; an electronic substrate that is laminated on a second main surface of the heat sink body on the reverse side thereof from the first main surface; and a light illumination element that is mounted on a first surface of the electronic substrate on the side thereof where the heat sink is provided. As a result of said configuration, it is possible to save space as well as power.

Classes IPC  ?

• B60H 3/00 - Autres dispositifs de traitement de l'air
• A61L 9/20 - Désinfection, stérilisation ou désodorisation de l'air utilisant des phénomènes physiques des radiations des ultraviolets

Abrégé

The purpose of the present invention is to suppress noise caused by contact between a depression and a ring. Provided is an electric compressor comprising: a housing that forms an outer shell; a fixed scroll that is housed in the housing and fixed on the housing side; a turning scroll that meshes with the fixed scroll and turns with respect to the fixed scroll; an autorotation inhibiting mechanism (30) that inhibits autorotation of the turning scroll; and a lubricant supply unit that supplies a lubricant to the autorotation inhibiting mechanism (30). The autorotation inhibiting mechanism (30) has: a ring hole (32) which is formed in the turning scroll; a ring (33) which is disposed in the ring hole (32), and the outer circumferential surface (33b) of which faces the inner circumferential surface 32a of the ring hole (32); and a pin (34) which is provided to the housing and which engages with the inner circumferential surface (33a) of the ring (33). A gap (G) formed between the inner circumferential surface (32a) of the ring hole (32) and the outer circumferential surface (33b) of the ring (33) is 0.1-0.6 mm.

Classes IPC  ?

• F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c. à d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise

Produits et services

Electronic apparatus for operating cooling installations, namely remote controls, operation monitoring device, operation data measuring device and computer systems for temperature control; electric apparatus for refrigerating apparatus, namely remote controls, operation monitoring device, operation data measuring device and computer systems for temperature control. Combination apparatus for cooling and freezing; cooling installations; refrigerating apparatus and machines; Cooling installations as structural parts of vehicles; refrigerating apparatus as structural parts of vehicles.

Abrégé

The present invention comprises: a unit case; a damper which switches between the open state and the closed state of a flow path; a plurality of damper levers which have pins and rotatably support the damper with respect to the unit case; and a main lever which has guide grooves into which the pins are fitted, and rotates the damper levers by guiding pins through rotation around an axis, wherein the main lever has a main lever body having the guide groove formed therein, and a shaft part which rotatably supports the main lever body and is provided with a hook portion engaged with the unit case, and the shaft part has a higher toughness than the main lever body and is made of a material different from that of the unit case.

Classes IPC  ?

• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation

Abrégé

A scroll compressor with a stationary scroll, an orbiting scroll, and a discharge port through which a fluid that has been compressed by both the scrolls is discharged. An end plate of the orbiting scroll is provided with an end-plate side stepped portion formed such that, along a spiral of a spiral wrap, the height thereof increases toward a central side of the spiral and decreases toward an outer end side thereof. A spiral wrap of the stationary scroll is provided with a wall-portion side stepped portion formed corresponding to the end-plate side stepped portion such that the height thereof decreases toward the central side of the spiral and increases toward the outer end side thereof. A pair of compression chambers which face each other, the ventral side compression chamber communicates with the discharge port before the dorsal side compression chamber communicates with the discharge port.

Classes IPC  ?

• F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c. à d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise

Abrégé

The purpose of the present invention is to provide a vehicle air conditioning system and a control method of the vehicle air conditioning system which enable detecting leaks of flammable refrigerant without requiring a separate sensor. This vehicle air conditioning system is provided with: a refrigeration cycle for cooling (23); a heat pump cycle for heating (33); a refrigerant that is very flammable, has an explosive range near room temperature, and circulates in the refrigeration cycle for cooling (23) and the heat pump cycle for heating (33); an outside temperature sensor (44) which detects the outside temperature; a pressure sensor (49) which detects the refrigerant pressure; and a control device which calculates the refrigerant density, which is the density of refrigerant, on the basis of the outside temperature and the pressure, and determines whether or not the refrigerant density has fallen below a prescribed threshold value which is based on the amount of sealed refrigerant, the total volume in the refrigeration cycle for cooling (23) and in the heat pump cycle for heating (33), the volume of the vehicle cabin, the standard density of the atmosphere, and the explosive limit of the refrigerant.

Classes IPC  ?

• F24F 11/36 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p.ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques aux fuites de fluides échangeurs de chaleur
• B60H 1/24 - Dispositifs exclusivement pour la ventilation, ou dans lesquels le chauffage ou le refroidissement n'est pas en jeu
• F24F 11/50 - Aménagements de commande ou de sécurité caractérisés par des interfaces utilisateurs ou par la communication
• F24F 11/89 - Aménagements ou montage des dispositifs de commande ou de sécurité
• F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression

Abrégé

The purpose of the present invention is to provide a compact heat exchanger with which the generation of excessive pressure loss can be suppressed and a suitable flow rate can be assured in accordance with the volumetric changes of a fluid due to phase changes. This heat exchanger (1) comprises a flow path (8) which has an inlet (10) into which a fluid (6) flows and an outlet (11) through which the flowed fluid (6) flows out, and in which a phase change from a fluid phase to a gas phase occurs between the inlet (10) and the outlet (11), wherein the inside of the flow path (8) is formed in a resistance shape (12) so that the amount of flow path resistance applied to the flow of the fluid (6) is smaller on the outlet (11) side than the inlet (10) side.

Classes IPC  ?

• F28F 13/08 - Dispositions pour modifier le transfert de chaleur, p.ex. accroissement, diminution en affectant le mode d'écoulement des sources de potentiel calorifique en faisant varier la section transversale des canaux d'écoulement
• F28F 13/12 - Dispositions pour modifier le transfert de chaleur, p.ex. accroissement, diminution en affectant le mode d'écoulement des sources de potentiel calorifique en créant une turbulence, p.ex. par brassage, par augmentation de la force de circulation

Abrégé

This temperature measurement value processing device is provided with: an acquisition unit that acquires, from a temperature sensor, a plurality of measurement values indicating a distribution of radiation temperatures in a predetermined detection range; a standard deviation calculation unit that calculates a standard deviation of the plurality of measurement values; a background temperature calculation unit that calculates a background temperature in a detection range on the basis of the plurality of measurement values; a threshold value calculation unit that calculates a threshold value by multiplying the standard deviation by a predetermined coefficient; a determination unit that determines whether or not the plurality of measurement values are included in a numerical value range based on the background temperature and the threshold value; and an output unit that outputs the result of determination by the determination unit.

Classes IPC  ?

• G01J 5/48 - Thermographie; Techniques utilisant des moyens entièrement visuels
• G01V 8/10 - Détection, p.ex. en utilisant des barrières de lumière
• G01V 8/20 - Détection, p.ex. en utilisant des barrières de lumière en utilisant plusieurs émetteurs ou récepteurs

Abrégé

This casing unit comprises a first casing, and a second casing to be combined from a first direction with the first casing. The first casing comprises a first casing body and a protruding part. The second casing comprises a second casing body at which an accommodating groove into which the protruding part is to be accommodated has been formed. Formed on either the protruding part or the second casing body is a guidance part for causing the first casing and the second casing to move in a relative manner in a second direction, in association with the combining of the first casing and the second casing. The second casing further has a wrapping part that overlaps with the first casing body in the first direction when in the combined state, and that is elastically deformable in association with relative movement of the first casing and the second casing in the second direction.

Classes IPC  ?

• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation
• B60H 1/32 - Dispositifs de refroidissement

Abrégé

The present invention provides a control device for a home electrical apparatus, the control device comprising an inquiry unit for making an inquiry to an AI apparatus on the basis of voice information using a natural language, and an acquisition unit acquiring, from the AI apparatus, response information corresponding to the inquiry, wherein the control device controls a home electrical apparatus on the basis of the response information.

Classes IPC  ?

• G10L 15/22 - Procédures utilisées pendant le processus de reconnaissance de la parole, p.ex. dialogue homme-machine 
• G10L 15/16 - Classement ou recherche de la parole utilisant des réseaux neuronaux artificiels

Abrégé

This rotary compressor (1) is provided with a sealed housing (2) which forms an outer shell, an electric motor (5), a compression mechanism (6) which is housed in the sealed housing (2) and which compresses a refrigerant using the drive force from the electric motor (5), and a drive shaft (14) which links the electric motor (5) and the compression mechanism (6) and which rotates about a center axis that extends in the vertical direction. The compression mechanism (6) comprises an upper rotor (33) which is linked to the drive shaft (14) and which is housed in an upper cylinder chamber (31), an upper cylinder main body (34) which partitions the radially outside part of the upper cylinder chamber (31), and an upper bearing unit (35) which rotatably supports the drive shaft (14) and partitions the upper cylinder chamber (31) in the vertical direction. The refrigerant is compressed between the rotating upper rotor (33) and the upper cylinder main body (34), and the upper bearing unit (35) and the upper cylinder main body (34) are formed from a composite material comprising resin reinforced with reinforcing fibers.

Classes IPC  ?

• F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes

Abrégé

This vehicle-mounted electric compressor is provided with a compressor body including a motor for compressing a refrigerant, and an inverter including a power element for supplying the motor with electric current. The power element is provided with: a metal substrate having an electrically conductive layer in a partial region of the surface thereof; a heat-generating element having a metal layer solder-fixed to the electrically conductive layer; and a resin substrate which is disposed in parallel with the metal substrate in a plate thickness direction of the metal substrate, and has a metal pattern printed on the surface thereof, the metal pattern having an electronic component mounted thereon. The electronic component and a terminal of the heat-generating element are connected by means of the metal pattern.

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
• H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
• H02K 11/25 - Dispositifs pour détecter la température ou actionnés par des valeurs de cette variable
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité

Abrégé

This refrigeration machine comprises a compressor that compresses a refrigerant, a condenser that condenses the refrigerant which has been compressed by the compressor, an expander that expands the refrigerant which has been condensed by the condenser, a liquid film type evaporator that evaporates the refrigerant which has been expanded by the expander, and an eductor that generates flow speed difference and pressure difference in the refrigerant which has been expanded by the expander and suctions refrigerant stored in the evaporator.

Classes IPC  ?

• F25B 5/04 - Machines, installations ou systèmes à compression, avec plusieurs circuits d'évaporateurs, p.ex. pour faire varier la puissance frigorifique disposés en série
• F25B 39/02 - Evaporateurs
• F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur
• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée

Abrégé

Provided is an electric compressor in which there are fewer instances of a magnetic force line being blocked more than necessary by a through-hole for a bolt, the number of components and number of machining steps do not increase as much, and the degree of adhesion of a laminated steel plate can be increased to ensure stiffness. A stator has a stator core (35) configured by laminating a plurality of electromagnetic steel plates in an axial direction, the electromagnetic steel plates having a substantial ring shape as seen from the axial direction. As seen from the axial direction, a plurality of through-holes (40) are formed through the stator core (35) in the lamination direction of the electromagnetic steel plates, on the same circle centered around the axis line, and as seen from the axial direction, a first arc length (L1) or a second arc length (L2) longer than the first arc length (L1) is set as each arc length between through-holes (40) adjacent in the circumferential direction. The stator is secured to a housing by a bolt inserted through the through-holes (40), the stator core (35) is varnished at least in areas near the centers in the circumferential direction between through-holes (40) where the second arc length (L2) is set.

Classes IPC  ?

• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• F25B 31/02 - Groupes moto-compresseurs

Abrégé

A compressor (100) comprises a compressor body (10), a pipe (20) connected to the compressor body (10), and an acoustic cover disposed so as to surround the compressor body (10). The acoustic cover (30) has an insertion hole (31) through which the pipe (20) is inserted while being in close contact with the pipe (20), and an inner surface (30A) of the acoustic cover has a shape that traces an outer surface (10A) of the compressor body (10). Due to this configuration, it is possible to reduce the size and the weight of the acoustic cover (30), and by using the acoustic cover (30) with a simpler structure, it is possible to reduce the noise of the compressor (100) of this automobile air conditioning device.

Classes IPC  ?

• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analogues; Equilibrage
• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• G10K 11/162 - Sélection de matériaux

Abrégé

An electric motor comprising: a rotor core in a disc shape centered around the axis; a plurality of permanent magnets arranged inside the rotor core in the circumferential direction; and a stator surrounding the rotor core and the permanent magnets from the outer peripheral side, wherein a plurality of outer-side slits extending in such directions that the outer-side slits become closer to each other as the positions approach from both ends in the circumferential direction toward the outside in the radial direction are formed on the outer peripheral side of the permanent magnets in the rotor core. This enables reduction in leakage magnetic flux.

Classes IPC  ?

• H02K 1/2706 - Rotors internes

Abrégé

An embodiment of the present invention provides a control device comprising: an electric detection unit which detects an electric physical quantity relating to a head capacitor provided between a DC power supply and an inverter switching element; and a protection control unit which controls the inverter switching element in accordance with a change in the electric physical quantity so that no electric current flows to the head capacitor.

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
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
• F04D 27/00 - Commande, p.ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles

Abrégé

In order to improve a vehicle air conditioning system that includes a circuit for a refrigerant and a circuit for a heat medium, this vehicle air conditioning system is provided with: a refrigerant circuit; a heat-medium circuit that includes a high-temperature heat-medium circuit and a low-temperature heat-medium circuit; a vehicle cabin-side heat exchanger; a vehicle exterior-side heat exchanger; and a switching unit that switches the flow of the high-temperature heat medium and the low-temperature heat medium, respectively, in accordance with the operation mode. At least one of the vehicle cabin-side heat exchanger or the vehicle exterior-side heat exchanger comprises a first heat exchanger and a second heat exchanger that can be connected in series or in parallel in the heat-medium circuit. The switching unit: switches the flow of the high-temperature heat medium upstream and downstream from a heat-absorbing heat exchanger; switches the flow of the low-temperature heat medium upstream and downstream from a heat-dissipating heat exchanger; and switches the first heat exchanger and the second heat exchanger between serial and parallel connection.

Classes IPC  ?

• B60H 1/22 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée autrement que de l'installation de propulsion