An electric compressor (1) includes an electric motor (5) which comprises a stator core (51), a stator coil (52) formed by winding a conducting wire (60) around the stator core (51), and a rotor (53) attached to a rotating shaft (4), and which causes the rotating shaft (4) to rotate via the rotor (53) by energizing the stator coil (52), a compressing mechanism (3) which is driven by the rotating shaft (4) to compress a refrigerant, and a housing (2) which has a suction intake port (21a) and a discharge port (24a), and which accommodates the rotating shaft (4), the electric motor (5), and the compressing mechanism (3), wherein the electric compressor (1) is configured such that the refrigerant sucked in from the suction intake port (21a) is compressed by the compressing mechanism (3) and is discharged from the discharge port (24a). The electric compressor (1) has a protecting member (58) which covers a part (61) of the conducting wire (60) that faces the suction intake port (21a).
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 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
An electric compressor (1) has an electric motor (2), a drive circuit (inverter (3)) that drives the electric motor (2), a compression mechanism (4) that compresses a refrigerant by being driven by the electric motor (2), a conductive member (lead pin (15)) that is connected to the drive circuit (inverter (3)), a conductor (7) that is drawn from the electric motor (2), a connector terminal (11) that connects the conductor (7) and the conductive member (lead pin (15)), a connector housing (12) that has an opening (13) in which the conductor (7) passes and that accommodates the connector terminal (11), a seal member (20) that is made to intervene between an inner wall of the opening (13) and the conductor (7), and pressing members (30) that press the seal member (20) toward the conductor (7).
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 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
[Problem] To reduce surface pressure acting on a tip end of a wind-ending part of a spiral wall of a revolving scroll in a scroll-type compressor. In the scroll-type compressor 10, a thrust plate 81 and an elastically deformable thrust sheet 82 are provided between an opposing surface 237 serving as a thrust-bearing part and a revolving substrate 521 of a revolving scroll 52. A first sealing material 83 creates a seal between the revolving substrate 521 and the thrust sheet 82, and a second sealing material 84 larger in diameter than the first sealing material 83 creates a seal between the thrust plate 81 and the opposing surface 237 of a second dividing wall part 232. A back pressure chamber H5 is partitioned off from a suction pressure region (space H6) by the thrust plate 81, the thrust sheet 82, the first sealing material 83, and the second sealing material 84. A circular recess 816 is formed in the surface of the thrust plate 81 on the side adjacent to the thrust sheet 82.
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 29/00 - "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
[Problem] To reduce imbalance in all components of a movable system including a drive shaft and a component fixed or linked to the drive shaft in a scroll-type compressor. In the scroll-type compressor 10, a shaft balancer 31 integrated with a drive shaft 30 has a first weight part 33 positioned on a side opposite from an eccentric pin 71 with a center line CL0 of the drive shaft 30 therebetween, and a bush balancer 721 integrated with an eccentric bush 72 has a second weight part 723 positioned on the radially outer side of the eccentric bush 72 and on a side opposite from a center line CL1 of the eccentric pin 71 with a center line CL2 of the eccentric bush 72 therebetween. When seen from the axial direction of the drive shaft 30, the second weight part 723 is formed symmetrically with respect to a virtual straight line passing through the center of the drive shaft 30 and the center of the eccentric bush 72, and the first weight part 33 is formed asymmetrically with respect to the virtual straight line.
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 29/00 - "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
[Problem] To suppress a decrease in a rotational moment generated in an orbiting scroll. [Solution] A scroll-type compressor 10 is provided with a fixed scroll 51, an orbiting scroll 52, a rotation preventing mechanism 300, and a back pressure chamber H5. A spiral orbiting wrap 522 of the orbiting scroll 52 meshes with a spiral fixed wrap 512 of the fixed scroll 51. A first compression chamber C1 is formed by an inner wall surface 522a of the orbiting wrap 522 and an outer wall surface 512b of the fixed wrap 512. A second compression chamber C2 is formed by an inner wall surface 512a of the fixed wrap 512 and an outer wall surface 522b of the orbiting wrap 522. An orbiting base plate 521 of the orbiting scroll 52 includes a first through hole 701 allowing communication between the first compression chamber C1 and the back pressure chamber H5, and a second through hole 702 allowing communication between the second compression chamber C2 and the back pressure chamber H5. Prior to the second compression chamber C2 communicating with the back pressure chamber H5 through the second through hole 702, the first compression chamber C1 communicates with the back pressure chamber H5 through the first through hole 701.
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
A decrease in a rotation moment generated in a movable scroll is minimized. A scroll compressor (1) comprises a fixed scroll (2), a movable scroll (3), and a rotation prevention mechanism (30). A spiral movable wrap (3b) of the movable scroll (3) meshes with a spiral fixed wrap (2b) of the fixed scroll (2). A first compression chamber (C1) is formed of an inner wall surface (3b1) of the movable wrap (3b) and an outer wall surface (2b2) of the fixed wrap (2b). A second compression chamber (C2) is formed of an inner wall surface (2b1) of the fixed wrap (2b) and an outer wall surface (3b2) of the movable wrap (3b). After the first compression chamber (C1) has been sealed by contact between a wind-terminating end part (3f) of the movable wrap (3b) and the outer wall surface (2b2) of the fixed wrap (2b), the second compression chamber (C2) is sealed by contact between a wind-terminating end part (2f) of the fixed wrap (2b) and the outer wall surface (3b2) of the movable wrap (3b).
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
The present invention enables satisfactory supply of lubricant to a bearing supporting an eccentric bush. A scroll compressor (100) comprises a fixed scroll (122) fixed to a housing (140), an orbiting scroll (124) executing an orbiting motion relative to the fixed scroll, and a translation mechanism (300) for translating rotating motion of a drive shaft (166) and orbiting motion of the orbiting scroll to and from each other. The translation mechanism comprises an eccentric shaft (260) provided on an end face of the drive shaft eccentrically with respect to the drive shaft, an eccentric bush (270) having a through-hole (271) into which the eccentric shaft is fitted, and a bearing (280) press-fitted into a boss portion (250) formed on the orbiting scroll and supporting an outer peripheral surface (272) of the eccentric bush. The eccentric bush has a lubricant supply flow path (350) penetrating therethrough to supply lubricant to the bearing. An outlet port (356) of the lubricant supply flow path is disposed at the outer peripheral surface (272) of the eccentric bush.
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
[Problem] To provide a scroll-type compressor with which it is possible to suppress insufficient lubrication of sliding portions of a scroll unit. [Solution] A scroll-type compressor 10 includes: an oil separator 100 which separates lubricating oil from a gaseous refrigerant discharged to a discharge chamber H3; a first lubricating oil chamber H5 which stores the lubricating oil separated by the oil separator 100; a first lubricating oil supply passage which supplies the lubricating oil in the first lubricating oil chamber H5 to a back pressure chamber H6; and a second lubricating oil supply passage which supplies the lubricating oil in the first lubricating oil chamber H5 to the vicinity of an outer end portion of a scroll unit 50. The second lubricating oil supply passage is formed as a passage causing the lubricating oil in the first lubricating oil chamber H5 to pass through a second lubricating oil chamber H7 which is disposed above the first lubricating oil chamber H5 and which is connected to the first lubricating oil chamber H5 by way of an orifice OL3.
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
[Problem] To provide an electric compressor with which it is possible to ensure the rigidity required of a laminated body that includes a support plate and a control board, without increasing the number of components. [Solution] An inverter circuit unit of an inverter integrated type electric compressor includes: bus bars 6a (61, 62, 63) which comprise a thin plate material made of metal, and which constitute a portion of the wiring of the inverter circuit unit; and a plate-like support plate 6b comprising a resin material which is molded integrally with the bus bars 6a. The bus bars 6a (61, 62, 63) respectively include embedded portions (U-phase embedded portion 611, V-phase embedded portion 621, W-phase embedded portion 631) embedded in the support plate 6b. Each embedded portion (U-phase embedded portion 611, V-phase embedded portion 621, W-phase embedded portion 631) extends in a direction orthogonal to the thickness direction of the support plate 6b, and the thickness direction of the thin plate materials of the embedded portions (U-phase embedded portion 611, V-phase embedded portion 621, W-phase embedded portion 631) is orthogonal to the thickness direction of the support plate 6b.
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
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
10.
INVERTER DEVICE, AND VEHICULAR ELECTRIC COMPRESSOR PROVIDED WITH SAME
The objective of the present invention is to provide an inverter device with which power semiconductor elements can be properly protected, and with which optimal operation taking withstand voltage into account can be achieved. This inverter device includes a junction temperature estimate calculating unit 32 for estimating a junction temperature Tj by adding a temperature rise value ΔT obtained from a loss P of power semiconductor elements 16U to 17W to a temperature Tth detected by a temperature sensor 22, wherein, when estimating the junction temperature Tj, an adjustment is made in a direction whereby the effects of the generation of heat by electronic components other than the power semiconductor elements 16U to 17W, and a wiring pattern on a control board 11, on the temperature sensor 22 are excluded.
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
[Problem] To enhance oil separation performance. An oil separation structure 55 comprises a partition member 62 that partitions the inside of a separation chamber 42 in the up-down direction. The partition member 62 has: a cylindrical support part 71 that is supported by an inner circumferential surface 63 of the separation chamber 42; and a cylindrical swirl facilitating portion which has a smaller diameter than the support part 71, the upper end side of which is formed contiguously to the support part 71, and the lower end side of which is closed. The swirl facilitating portion has formed therein a communication path 75 penetrating the radial inside and outside thereof, and facilitates the swirling of a refrigerant that is lowered by swirling along the inner circumferential surface 63 of the separation chamber 42.
[Problem] To return oil to a crank chamber via a simple configuration in a variable-capacity compressor. [Solution] In a variable-capacity compressor 100, a rotating member 180 secured to one end of a drive shaft 110 is accommodated in an accommodation chamber 101b1 formed in a cylinder block 101. A discharge passage 146, through which a crank chamber 140 and a suction chamber 141 communicate, includes a shaft-interior passage 146a, an internal space 146b of the rotating member 180 that communicates with the shaft-interior passage 146a, and a throttling passage 146c for allowing communication between the internal space 146b and the suction chamber 141. An oil return passage 147, which allows communication between the internal space 146b and an annular area 145b2 surrounding the rotating member 180, includes a gap δ between the rotating member 180 and an interposed member 160. The annular area 145b2 constitutes part of a crank-chamber-side passage 145b between a control valve 200 and the crank chamber 140 in a supply passage 145 through which an ejection chamber 142 and the crank chamber 140 communicate.
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
The present invention addresses the problem of increasing the rate of separation of lubricating oil in a compressor equipped with a centrifugal separating-type oil separator. A scroll compressor 100 is provided with a scroll unit 120 which draws, compresses, and ejects a gaseous refrigerant as a compressive fluid, and an oil separator 230 which separates lubricating oil from the gaseous refrigerant ejected from the scroll unit 120. The oil separator 230 comprises: a separating chamber H6 for separating the lubricating oil from the gaseous refrigerant using a centrifugal force; an oil storage chamber H7 positioned under the separating chamber H6 to store the lubricating oil separated in the separating chamber H6; and a partitioning plate 230C disposed so as to partition the separating chamber H6 and the oil storage chamber H7 from each other. The partitioning plate 230C has a plurality of communication holes 230C1 formed along the circumferential direction. The communication holes 230C1 have an inclined surface opposite the gaseous refrigerant turning in the separating chamber H6.
F04B 39/04 - Mesures pour éviter que le lubrifiant ne contamine le fluide pompé
F04C 29/02 - Lubrification; Séparation du lubrifiant
F25B 43/02 - 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 la séparation des lubrifiants du frigorigène
This control valve has a communication channel that allows communication of two different pressure regions and that has a small cross-sectional area, wherein the communication channel can be formed more easily than in the prior art, whereby the cost of the control valve is reduced. In this control valve, a valve chamber (336) accommodating a valve body (341) is formed in divided sections by a valve body (311) and a fixed iron core (332) being joined together. Provided inside this control valve is a seventh communication channel (400) that bypasses a valve hole (315) and allows a refrigerant to flow to a crank chamber, the seventh communication channel (400) being formed by a fourth communication hole (401) formed in the valve body (311), and a first groove part (402) that is formed in a distal-end-side end surface (332b21) of the fixed iron core (332) and that constitutes an aperture that allows communication between the valve chamber (336) and the fourth communication hole (401) when the valve body (311) and the fixed iron core (332) are joined together.
[Problem] To provide a scroll compressor which can suitably adjust a back pressure in both a low-speed operation condition and a low-suction pressure operation condition by improving the position or dimension of a back pressure hole. [Solution] The present invention is provided with: a back pressure chamber 29 formed on the rear surface of a mirror plate 31 of a movable scroll 22; and back pressure holes 51, 52 that are formed in the mirror plate of the movable scroll and provide communication between the back pressure chamber and a compression chamber 23, wherein the back pressure hole 52 is closed by a lap 24 of a fixed scroll 21 after being open inside the lap 32 of the movable scroll within a first crank angle range, and then, the back pressure hole is open inside the lap of the fixed scroll within a second crank angle range.
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
[Problem] To provide a scroll compressor with which effective miniaturization can be achieved. [Solution] A scroll compressor 100 comprises, in a housing 10, the following: a fixed scroll 2 and a moving scroll 3; a thrust receiving part 24 that receives a thrust force of the moving scroll 3; and a drive shaft 21. The thrust receiving part 24 includes a through-hole 24a1 that: provides a partition between a first region V1 in which the drive shaft 21 extends within the housing 10 and into which fluid is guided from outside, and a second region V2 in which the fixed scroll 2 and the moving scroll 3 are arranged; and establishes communication between the first region V1 and a fluid intake region H1 close to the outer spiral end of wraps 2b, 3b in the second region V2. An impeller 27, which is attached to the drive shaft 21, rotates integrally with the drive shaft 21 and sends the fluid in the first region V1 toward the thrust receiving part 24.
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 29/00 - "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
[Problem] To provide an inverter device with which it is possible to reduce a non-operating time by causing the internal temperature of an electrolytic capacitor to increase more rapidly, within a permissible range of ripple voltage. [Solution] This inverter device is provided with an electrolytic capacitor 1, an inverter circuit 2, a temperature sensor 4, and a control device 3. If the ambient temperature of the electrolytic capacitor 1 detected by the temperature sensor 4 is lower than a prescribed temperature, the control device 3 turns on a specific switching element in the inverter circuit 2 before the start of normal operation of a motor 5, and while keeping the motor 5 stopped, executes a warming up operation to cause a current with which a ripple voltage of a direct current voltage can be controlled within a permissible range to flow through the motor 5 with a prescribed rate of increase.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02P 27/06 - 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
H02P 29/62 - Commande ou détermination de la température du moteur ou de l'entraînement pour augmenter la température du moteur
[Problem] To provide a scroll compressor with which it is possible for a pressure loss in a pathway extending from a discharge space to a discharge port to be reduced effectively. [Solution] This scroll compressor is provided with a discharge space 27 formed in a compressing mechanism cover 9 of a housing 11, a discharge hole 26 which is formed in a fixed scroll 21 and which discharges compressed refrigerant into the discharge space, a discharge port 51 for discharging the refrigerant to the outside of the housing, a relief passage 71 providing communication between the discharge space and the discharge port, and a differential pressure valve 74 which is provided in the relief passage and which opens in accordance with a pressure difference between the discharge space and the discharge port, wherein the relief passage opens in the discharge space above the discharge hole.
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 28/28 - Dispositions de sécurité; Surveillance
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
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
[Problem] To provide a scroll compressor in which the development of localized contact caused by deformation of a fixed scroll or a movable scroll due to the influence of compressive reaction force or thermal expansion is effectively suppressed and break-in time is reduced. [Solution] Laps 24, 32 of a fixed scroll 21 and a movable scroll 22 have a plurality of step portions between a winding-end portion at an outer-most periphery and a winding-start portion at an inner-most periphery, and are configured to have a height that decreases in a stepwise manner from the winding-end portion to the winding-start portion. The position and height of each step portion are set such that, when the spiral laps 24, 32 are expanded on a predetermined plane, a base point of each step portion is on a predetermined arc drawn on the plane.
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
[Problem] To provide a scroll compressor with which it is possible to eliminate the problem of excessive back pressure in a wide suction pressure range. [Solution] The scroll compressor is provided with: a back pressure chamber 39 formed on a back surface of an end plate 31 of a movable scroll 22; a back pressure passageway 43 communicating between a discharge space 27 and the back pressure chamber 39; an orifice 44 provided in the back pressure passageway 43; a pressure-control communicating hole 51 formed in the end plate 31 of the movable scroll 22 and communicating between the back pressure chamber 39 and the compression chamber 34; and a pressure adjusting valve 47 provided between the back pressure chamber 39 and the interior of a main housing 6.
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 28/28 - Dispositions de sécurité; Surveillance
[Problem] To provide a scroll compressor with improved workability when communicating a back pressure chamber and a compression chamber. [Solution] The present invention comprises: a back pressure chamber 39 that is formed in a back surface of a mirror plate 31 of a movable scroll 22 of a scroll compressor 1; and a communication hole 51 that is formed in the mirror plate 31 of the movable scroll 22, and communicates the back pressure chamber 39 and a compression chamber 34. The communication hole 51 is structured from a large-diameter hole section 52 that is located in the back pressure chamber 39 side of the mirror plate 31 of the movable scroll 22, and a small-diameter hole section 53 that continues from the large-diameter hole section 52 to reach the compression chamber 34.
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 29/00 - "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
[Problem] To reduce the stress generated in a bridge that links adjacent magnet insertion holes, even if a gap is formed on the side of the magnets in the rotation direction. [Solution] A motor comprising a drive shaft that transmits rotational drive force, a rotor 440 that integrally rotates with the drive shaft, and a stator arranged on the outer circumference of the rotor 440. A plurality of magnets 480 are embedded in an outer peripheral section of the rotor 440, in the circumferential direction, and a gap 444 is formed on both sides of the magnets 480 in the direction of rotation. A gap 444 positioned on the outside of the rotor 440 in the radial direction is partitioned by a curve, specifically a first arc 444A, that passes through a plurality of points that have a distance from the center of rotation of the rotor 440, in a lateral cross-section of the rotor 440, that is smaller than the distance from the center of rotation to a corner 480A positioned on the outside in the radial direction of the magnets 480. The stress that is generated in the bridge that links adjacent magnet insertion holes 442 is reduced by reducing the centrifugal force generated in the bridge.
[Problem] To reduce costs of a second control valve and improve productivity of the second control valve which adjusts an opening degree of a discharge passage for discharging a refrigerant in a control pressure chamber to a suction chamber in a variable capacity compressor. [Solution] A second control valve 400 of a variable displacement compressor is configured such that when a first end surface 421a of a valve body 420 accommodated in a valve chamber 410 abuts a first end wall surface 411 of the valve chamber 410 to close a second port 432 and a third port 433, the opening degree of the discharge passage is minimized, and when the first end surface 421a of the valve body 420 is separated from the first end wall surface 411 of the valve chamber 410 to open the second port 432 and the third port 433, the opening degree of the discharge passage is maximized. As a guide shaft part 415a is slidably inserted into an inserted part 423 formed in a radially central portion of the valve body 420, the valve body 420 is supported so as not to contact a peripheral wall surface 413 of the valve chamber 410 and to be movable in a direction orthogonal to the first end wall surface 411.
[Problem] To suppress deformation in a stator having a two-part structure comprising an inner core and an outer core, even if the inner core is press-fitted into the outer core. [Solution] A stator of a motor includes an inner core 462 having a plurality of protrusions 462B extending radially outward from the outer peripheral surface of a cylindrical cylinder portion 462A, and a cylindrical outer core 464 having an inner peripheral surface into which tips of the protrusions 462B of the inner core 462 are press-fitted. Further, at least one through hole TH traversing from one axial surface of the inner core 462 to the other is formed in the tip of each protrusion 462B of the inner core 462.
H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
[Problem] To provide an interlock device for a high voltage apparatus, which not only enables a connection, non-connection state diagnosis of a connector when an interlock device is normal, but can also detect a fault in the interlock device itself including a fault in an interlock loop. [Solution] The present invention is provided with: an interlock loop 16 which is installed side-by-side with an HV connector 7 for connecting an electric compressor to an HV battery 8; a detection signal output unit; a first switching element; a control voltage switching circuit which switches a voltage applied to a control electrode of the first switching element according to an output from the detection signal output unit, when the interlock loop is in a closed state; a second switching element which applies an output from the control voltage switching circuit to the control electrode of the first switching element so that an ON/OFF state of the first switching element is inverted to when the interlock loop is in the closed state, when the interlock loop is in an open state; and a fault diagnosis unit.
B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquement; Contrôle des paramètres de fonctionnement, p.ex. de la vitesse, de la décélération ou de la consommation d’énergie
G01R 31/50 - Test d’appareils, de lignes, de câbles ou de composants électriques pour y déceler la présence de courts-circuits, de continuité, de fuites de courant ou de connexions incorrectes de lignes
[Problem] To provide an electric compressor configured to allow a damping material for damping vibrations of a cover of an inverter accommodating portion to be installed without requiring an extra structure to be formed on the housing side and without adversely affecting a board. [Solution] This electric compressor is provided with a housing (2), an inverter (10), an inverter accommodating portion (8), and a cover (11) fixed to the housing (2) and closing the inverter accommodating portion (8). The inverter (10) includes a filter circuit board (66) on which circuit elements are mounted. The filter circuit board (66) is mounted to the housing (2) by means of a bolt (36A), and a damping material (39) is installed between the bolt (36A) and the cover (11). [Selected drawing] FIG. 1
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
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
[Problem] To suppress the increase in size in an attachment structure of a housing member for housing a neutral point. [Solution] A neutral point box 24 is disposed on the rear side of a cluster housing 31 and is fitted into an insulator 22 so as not to be projected from the front end of the insulator 22 to the cluster housing 31 side.
H02K 3/38 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement autour des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
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 3/52 - Fixation des enroulements de pôles saillants ou de leurs connexions
[Problem] To suppress the increase of cost and simplify component management in an attachment structure of a connector member. [Solution] An insulator 22 into which a cluster housing 31 is fitted and an insulator 22 into which the cluster housing 31 is not fitted all have the same shape.
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 3/52 - Fixation des enroulements de pôles saillants ou de leurs connexions
H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p.ex. façonnées pour former des boîtes à connexions ou à bornes
[Problem] To provide a compressor capable of suitably maintaining an amount of a lubricating oil inside a crank chamber. [Solution] This compressor 100 has a configuration in which a lubricating oil flowed into an oil supply passage 147 via an inlet side opening 147A from a crank chamber 140 flows out toward one end surface 112b of a rotary body 112 from an outlet side opening 147B. The compressor 100 includes an accommodation part 148 in which an accommodating region 146c for accommodating the lubricating oil flowed out from the outlet side opening 147B is formed. In the accommodation part 148, the accommodating region 146c is formed in a radial portion corresponding to the opening position of the outlet side opening 147B on the one end surface 112b of the rotary body 112, that is, in a portion including at least an adjacent region 146c1 that is adjacent to the outer peripheral surface-side opening end of a first passage 146a. In addition, the outer peripheral surface side opening end of the first passage 146a opens to the adjacent region 146c1.
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
[Problem] To provide a compressor in which the amount of lubricating oil in a crank chamber can be properly maintained. [Solution] In a compressor 100, a discharge passage 146 allows communication between a crank chamber 140 and an intake chamber 141 via a first passage 146a extending axially inward from an outer peripheral surface at one end of a drive shaft 110 and a second passage 146b extending to the other end of the drive shaft 110. An oil supply passage 147 opens at one end into the crank chamber 140, farther diametrically outward than a thrust bearing 133 in one end wall portion 102b of a front housing 102, and opens at the other end into a space W. Lubricating oil that has flowed into the space W from the crank chamber 140 through the oil supply passage 147 then flows out via a inter-surface gap between a first bearing 131 and the drive shaft 110. An opening in the outer-peripheral-surface-side of the first passage 146a opens into a recess 146c, which is recessed in a position corresponding to the other end surface 131b of the first bearing 131 and which opens into a crank chamber internal region 140a between the one end wall portion 102b and a rotational solid 112.
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
The present invention addresses the problem of maintaining housings at the same potential. Opposed insertion holes (46) are formed in the respective joining surfaces of a front housing (12) and a center housing (13). Each of one end and the other end of a spring pin (45) is inserted into one of the insertion holes (46), and the outer peripheral surface of the spring pin (45) is pressed against the inner peripheral surfaces of the insertion holes (46) by elastic force.
[Problem] To provide a high-voltage apparatus control device capable of determining the connection state of a connector and discharging residual charge in a short time. [Solution] The control device 1 controls an electric compressor and is provided with an interlock loop 4 annexed to a connector 9 for connecting the electric compressor to an HV battery 17. The control device 1 detects connection/disconnection of the connector 9 in accordance with the state of the interlock loop 4 and forcibly discharges residual charge in an internal smoothing capacitor 14 upon detecting disconnection of the connector 9.
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
[Problem] To provide an electric compressor capable of improving the reliability over time of electric insulation. [Solution] An electric compressor in which a polyalkylene-glycol-based lubricant is used as a lubricant, wherein a stator coil of an electric motor accommodated in a housing together with a compression mechanism that compresses a refrigerant comprises an insulated electric wire 60 wound around a stator core, the insulation electric wire 60 having an insulation coating film 62 formed on a conductor 61 in wire form. The insulation coating film 62 contains two or more insulation layers 621 to 623, where all of the two or more insulation layers 621 to 623 are formed of a polyamide-imide-based resin.
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 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
H02K 3/30 - Enroulements caractérisés par leur matériau d'isolement
[Problem] To reduce costs and improve workability. [Solution] The present invention comprises: a power board 22 on which a switching element has been mounted; a control board 23 for controlling the switching element; and a detachable wire member 25 that is flexible and has a planar shape, and electrically connects the power board 22 and the control board 23.
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
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
[Problem] To inexpensively improve vibration resistance. [Solution] According to the present invention, a plurality of capacitors 22 that are each provided with a base are surface mounted on either surface of a substrate 21.
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
H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
[Problem] To improve the durability of a substrate. [Solution] According to the present invention, a switching element 22 and a capacitor 23 are mounted on a substrate 21. The substrate 21 is housed in an inverter housing part 12, and an outer peripheral edge thereof is fixed by screwing at a plurality of predetermined fixation points. A cushioning material 26 is sandwiched between the substrate 21 and a bottom surface 25 of the inverter housing part 12. The cushioning material 26 is uniformly arranged in a region of the substrate 21 that is inside the fixation points.
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
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
[Problem] To suppress uneven wear of a sliding bearing. [Solution] Between an eccentric bushing 33 and a sliding bearing 43, a drive ring 44 is interposed in a state allowing sliding with respect to the sliding bearing 43. Between the outer peripheral surface of the proximal side of the eccentric bushing 33 and the inner peripheral surface of the drive ring 44, a gap 51 is provided for allowing deflection of the drive ring 44 caused by upsetting of the movable scroll 25.
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
[Problem] To improve wear resistance when an eccentric bushing is molded from cast iron. [Solution] Between an eccentric bushing 33 and a sliding bearing 43, a drive ring 44 is interposed in a state allowing sliding with respect to the sliding bearing 43.
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
[Problem] To simplify the structure of a second control valve for pressure relief of a crank chamber in a variable capacity compressor. [Solution] A second control valve 400 adjusts the opening degree of a discharge passage 146 according to a difference between the pressure of downstream-side region of a supply passage 145, which is more toward a crank chamber 140 than a first control valve 300, and the pressure of the crank chamber 140. An accommodation chamber 101d includes: a first port 152a that communicates with the downstream-side region; a second port 101e that communicates with the crank chamber 140; and a third port 101f that communicates with a suction chamber 141. A valve body 401 includes: a valve part 401a; an insertion part 401b capable of being inserted into the second port 101e; and a partition part 401c. A length L1 from one end surface 401a1 of the valve body 401 to an insertion distal end 401b1 of the insertion part 401b is shorter than a length L2 of the entire accommodation chamber 101d. In a state in which the insertion distal end 401b1 is inserted into the second port 101e, a throttle section 146a of the discharge passage 146 is formed between the outer circumferential surface of the insertion part 401b and the inner circumferential surface of the second port 101e.
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F04B 49/12 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la course des organes de travail
[Problem] To provide a scroll expander with which it is possible to achieve an increase in volume ratio without an increase in size, or to achieve size reduction while maintaining a volume ratio. [Solution] A scroll expander 7 comprises: an intake chamber 80 which is formed in the vicinity of a scroll center portion by a first scroll wall 712 of a fixed scroll 71 and a second scroll wall 722 of a movable scroll 72, and of which the volume varies due to rotation of the movable scroll 72; a fluid passageway 73 which guides an operating fluid to the intake chamber 80; and a valve device 74 which opens the fluid passageway 73 in order to introduce the operating fluid into the intake chamber 80, and which closes the fluid passageway 73 before the intake chamber 80 is compartmentalized into two expanding chambers.
F01C 1/02 - "Machines" ou machines motrices à piston rotatif du type à engrènement, c. à d. avec mouvement de translation circulaire des organes coopérants, tous les organes ayant le même nombre de dents ou de parties équivalentes de prise
F01C 21/18 - Dispositions pour l'admission ou l'échappement du fluide de travail, p.ex. caractéristiques de structure de l'admission ou de l'échappement
41.
SWITCHING POWER SUPPLY DEVICE AND VEHICLE-MOUNTED ELECTRIC COMPRESSOR EQUIPPED WITH SAME
[Problem] To provide a switching power supply device in which EMI noise can be effectively reduced. [Solution] This switching power supply device 9 supplies power to a control circuit 6 by switching a low-voltage power supply 12, said control circuit 6 controlling a vehicle-mounted electric compressor 1 which is driven by a high-voltage power supply 11. The switching power supply device 9 is provided with a switching transformer 15 having a primary winding 13 on the low-voltage power supply side and a secondary winding 14 on the high-voltage power supply side, and isolating the low-voltage power supply side and the high-voltage power supply side from each other, wherein the power supply positive side 13B of the primary winding and the ground side 24B of the secondary winding of the switching transformer are coupled through a coupling capacitor 42.
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
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
[Problem] To provide a variable-capacity compressor that makes it easy to arrange a switching valve in the interior of the variable-capacity compressor, and makes it possible to prevent a delay in pressure regulation of a controlled-pressure chamber such as a crankcase. [Solution] A switching valve (10) provided more to a crankcase (30) side than a control valve (9) in a supply channel (7) comprises: a valve chamber (100); a main valve element (110) that is accommodated in the valve chamber (100), and moves between a first wall surface and a second wall surface in accordance with a pressure difference between the pressure of an upstream-side supply channel, of the supply channel (7), that is between the control valve (9) and the switching valve (10) and the pressure of a downstream-side supply channel, of the supply channel (7), that is between the switching valve (10) and the crankcase (30); and a secondary valve element (120) that is accommodated in the main valve element (110) and is formed to be more lightweight than the main valve element. The secondary valve element (120) operates so as to open an in-valve channel (113) when the pressure of the upstream-side supply channel becomes higher than the pressure of the downstream-side supply channel, and close the in-valve channel (113) when the pressure of the upstream-side supply channel becomes lower than the pressure of the downstream-side supply channel.
[Problem] To provide a variable-capacity compressor that makes it possible to curb any increase in size in a direction running along an axial direction of a drive shaft. [Solution] A variable-capacity compressor (1) where opening degree adjustment of a first control valve (9) for changing the opening degree of a supply channel (7) changes the pressure of a crankcase (30), thus adjusting the stroke of a piston (23), wherein a second control valve (10) includes: a valve chamber (100) arranged, out of a center bore (22), between one end of a drive shaft (6) and a valve plate (4), and a valve element (110) accommodated so as to be moveable along an axial direction of the drive shaft (6) to the valve chamber (100); and the valve element (110) moves between a first wall surface (101) where a first port (P1) opens and a second wall surface (102) where a second port (P2) and a third port (P3) open, in accordance with the difference between the pressure of a region between the first control valve (9) and a check valve (75) in the supply channel (7), and the pressure of the crankcase (30).
This scroll compressor is provided with: an eccentric shaft member, secured eccentrically with respect to a rotary shaft, in which an introduction channel that passes through from a base end to a tip end in the axial direction is formed and through which a lubricating oil is introduced from the base-end side to the tip-end side via the introduction channel; a bearing that is supported by a boss of a movable scroll and an inner peripheral surface of which fits slidably with an outer peripheral surface on the tip-end side of the eccentric shaft member; and a counterweight which is disposed on the eccentric shaft member in order to achieve weight balance and which has a ring section formed on the radially central side thereof, the ring section being disposed so as to cover an end surface of the bearing, and an inner peripheral surface of the ring section being secured to an outer peripheral surface on the base-end side of the eccentric shaft member. A discharge channel for discharging the lubricating oil supplied to the bearing from the tip-end side of the eccentric shaft member is formed in the ring section.
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
[Problem] To provide a variable-capacity compressor obviating the need to alter the position of an opening/closing mechanism and making it possible to improve the ease of assembly of the opening/closing mechanism in the variable-capacity compressor, despite differences from engine to engine in the installation angle of the variable-capacity compressor centered on an axis of a drive shaft. [Solution] A variable-capacity compressor (1) is configured so that a discharge channel (8) for discharging a refrigerant of a crankcase (30) to an inlet chamber (51) includes a first discharge channel (8a) having an accommodation chamber (82) that is a space within a center bore (22) formed between another end-side surface of the drive shaft (6) and a valve plate (4), and a second discharge channel (8b) provided to a cylinder block (2) separately from the first discharge channel (8a), the compressor being provided with an opening/closing mechanism (10) that is arranged within the accommodation chamber (82) and that opens the first discharge channel (8a) and discharges oil that is present inside the crankcase (30) if the temperature of the accommodation chamber (82) is at or above a preset first threshold temperature, and closes the first discharge channel (8a) if the temperature of the accommodation chamber (82) is at or below a preset second threshold temperature lower than the first threshold temperature.
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
[Problem] To provide a scroll type expansion machine in which the degradation of the sealing performance of a seal member can be suppressed. [Solution] A housing has provided therein: a drive-side bearing 20 which is disposed closer to the front end of a drive shaft 5 than an orbiting scroll 7 and which is provided with a plurality of the drive-side rolling bodies 23; and a seal member 9 which is disposed closer to the front end of the drive shaft 5 than the drive-side bearing 20. The housing has: a suction port Pin which is formed at a position on the opposite side of a stationary scroll 6 from the drive shaft 5; a discharge port Pout which is formed closer to the front end of the drive shaft 5 than the drive-side bearing 20; a low-pressure chamber 40 which is formed outside an orbiting-side spiral section 7b when viewed in the axial direction of the drive shaft 5; and a front end-side low-pressure space 60 in which the seal member 9 is disposed. The housing has a partition wall W which separates the front end-side low-pressure space 60 and the low-pressure chamber 40, and a communication space 70 which connects the front end-side low-pressure space 60 and the low-pressure chamber 40.
F01C 1/02 - "Machines" ou machines motrices à piston rotatif du type à engrènement, c. à d. avec mouvement de translation circulaire des organes coopérants, tous les organes ayant le même nombre de dents ou de parties équivalentes de prise
F01C 21/10 - Organes externes coopérant avec des pistons rotatifs; Carcasses d'enveloppes
[Problem] To suppress unnecessary power consumption due to discharge resistance. [Solution] In the present invention, when detecting that a connector has been connected, a controller 14 disconnects a discharge resistor 22 from a driving circuit 15, and connects the discharge resistor 22 to the driving circuit 15 when detecting that the connector has been disconnected.
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquement; Contrôle des paramètres de fonctionnement, p.ex. de la vitesse, de la décélération ou de la consommation d’énergie
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
[Problem] To improve wear resistance of a thrust plate. [Solution] A movable scroll (25) is made of an aluminum-magnesium-silicon-based alloy and subjected to alumite treatment. Further, a thrust plate (37) is coated with a resin.
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 29/00 - "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
[Problem] To improve reliability using a highly durable bearing. [Solution] A cylindrical roller bearing 24 is provided inside a back-pressure chamber 37, rotatably supports a rotating shaft 23, and permits the rotating shaft 23 to be displaced in an axial direction. A rotor 26 comes into contact with a center housing 16 when the rotating shaft 23 is displaced rearward in the axial direction, and as a result, the displacement of the rotating shaft 23 in the axial direction is restricted.
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
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
50.
COMPRESSOR, AND METHOD FOR FIXING ADJUSTING SCREW MEMBER
[Problem] To suppress loosening of an adjusting screw member more efficiently. [Solution] A clamp portion 67, which is formed by deforming a crest of a female thread section 62 radially inward, is formed at a rear end surface 66 of a cylinder block.
The present invention belongs to the technical field of electric compressors for vehicles, and addresses the problem of making it possible to perform a hermeticity inspection while suppressing an increase in the number of components and operation steps and improving quality. As a means of overcoming this problem, the present invention has a configuration in which a communicating passage (23) providing communication between the inside and the outside of an inverter accommodating portion (12) is formed in a compressor-side connector (14) in order for a hermeticity inspection of the inverter accommodating portion (12) to be performed, and the communicating passage (23) is sealed when a vehicle-side connector (32) is inserted.
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 51/00 - Tests des "machines", pompes ou installations de pompage
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
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
[Problem] To improve oil separation performance. [Solution] An oil separation structure provided with a partition member 61 which partitions the interior of a separation chamber 42 in the vertical direction and in which is formed a connecting passage 66 through which oil passes. The connecting passage 66 is provided with a section extending in the horizontal direction.
F25B 43/02 - 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 la séparation des lubrifiants du frigorigène
F04B 39/04 - Mesures pour éviter que le lubrifiant ne contamine le fluide pompé
F04C 29/02 - Lubrification; Séparation du lubrifiant
F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
53.
POWER SOURCE INPUT CIRCUIT AND INVERTER-INTEGRATED ELECTRIC COMPRESSOR FOR VEHICLE COMPRISING SAID CIRCUIT
[Problem] To provide a power source input circuit with which oscillation associated with an input current can be smoothly alleviated. [Solution] Provided is a power source input circuit comprising: a current detection resistor 21 for detecting a current on the basis of voltages occurring at both ends due to an inrush current; and a transistor Q3 having a collector connected to the gate of a power switching element Q2. In the transistor Q3, the base voltage changes according to the voltage occurring at both ends of the current detection resistor 21; and the transistor Q3 adjusts the gate voltage of the power switching element Q2, allowing for a constant current operation. A capacitor 28 is connected between the collector and the base of the transistor Q3.
G05F 1/56 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type continu utilisant des dispositifs à semi-conducteurs en série avec la charge comme dispositifs de réglage final
H02H 9/02 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de courant
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
H03K 17/08 - Modifications pour protéger le circuit de commutation contre la surintensité ou la surtension
H03K 17/16 - Modifications pour éliminer les tensions ou courants parasites
H03K 17/687 - Commutation ou ouverture de porte électronique, c. à d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ
[Problem] To provide a power conversion device with which it is possible to smoothly supply a compensation current that cancels out a leakage current from a load, using an available and relatively simple configuration, without specially using a high-withstand-voltage transistor as a complementary transistor. [Solution] A compensating current supply circuit 17, having: a complementary transistor 18 having commonly connected bases and commonly connected emitters; resistance voltage divider circuits 21, 22 for voltage-dividing a DC power supply and applying the divided voltages respectively between the emitter and collector of transistors Tr1, Tr2 that constitute the complementary transistor 18; and coupling capacitors Cs respectively connected between the DC power supply and the collector of each of the transistors.
H02M 1/14 - Dispositions de réduction des ondulations d'une entrée ou d'une sortie en courant continu
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
[Problem] To minimize sticking of a lead valve and to improve sealing. [Solution] On the front surface of a valve plate (24), a plurality of recesses (61), which are only partially covered by an intake valve (56), are formed in the periphery of an intake hole (54), not on both transverse sides of the intake valve (56), but in the longitudinally distal end side of the intake valve (56).
F04B 39/10 - Adaptation ou aménagement des organes de distribution
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
F16K 15/16 - Soupapes, clapets ou valves de retenue à corps de soupapes flexibles à lamelles en forme de langue
[Problem] To improve safety after a vehicle collision. [Solution] The present invention comprises: a compressor 11 that is mounted in a vehicle and that is driven by a built-in electric motor; a control circuit 55 that is provided to the compressor 11 and that executes drive control of the compressor 11; and an acceleration sensor 58 that is provided to the compressor 11 and that detects a vehicle collision. If a vehicle collision has been detected by the acceleration sensor 58, the control circuit 55 restricts the driving of the compressor 11 thereafter.
Provided is a compressor capable of suppressing a reduction in oil present in an accommodating space, even if the attitude of the compressor is an attitude in which the accommodating space is above a crank chamber, in a vertical direction. A compressor 1 is provided with a front housing 3, a drive shaft 6, a seal member 70 accommodated in an accommodating space 72 formed inside the front housing 3, an oil introduction passage 74 which provides communication between a crank chamber 30 and the accommodating space 72 and which is formed in a position, in the front housing 3, that is above the drive shaft 6, in a vertical direction, when the attitude of the compressor 1 is the attitude thereof during use, and a trap mechanism which stores at least a portion of oil attempting to move from the accommodating space 72 side to the crank chamber 30 side, wherein the trap mechanism includes a truncated cone-shaped blocking member 80 which is press fitted into the oil introduction passage 74 from an upper base side thereof to block the oil introduction passage 74 by means of an outer circumferential surface of a lower base thereof.
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 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
Provided is a compressor in which the amount of oil flowing out into an intake chamber can be reduced. A compressor 1 is provided with a drive shaft (6), a pressure supply passage (7), and a discharge passage (8). The discharge passage (8) includes an in-shaft passage (81) that is formed inside the drive shaft (6) and that has one end connected to a crank chamber (30), a center bore inner space (82) that is connected to the other end of the in-shaft passage (81) and that is formed, in a center bore (22), between the other-end-side end surface of the drive shaft (6) and a valve plate (4), and a gas return passage (84) that includes an orifice (83) and that connects the center bore inner space (82) to an intake chamber (53). In a passage forming member (10) forming a part of the discharge passage (8), the gas return passage (84) is formed inside a protrusion (12) that protrudes, in the center bore inner space (82), toward the drive shaft (6) from the valve plate (4). The inner diameter of the in-shaft passage (81) is larger than the inner diameter of the gas return passage (84). A gap is formed between the drive shaft (6) and the protrusion (12).
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
Provided is an electric compressor that enables an electric potential difference generated between two adjacent housings to be reduced in a stable manner. An electric compressor 1 comprises: a compressing mechanism that compresses a refrigerant; an electric motor serving as a drive source of the compressing mechanism; an inverter for driving the electric motor; and a plurality of metal housings enclosing the compressing mechanism, the electric motor, and the inverter, two adjacent housings being connected through an insulating gasket 60. The electric compressor further comprises a metal plate 40 having one end fixed to a first housing 10, which is one of the two adjacent housings, and the other end arranged to contact a second housing 20, which is the other of the two adjacent housings, when the two adjacent housings are connected together. The two adjacent housings are metallically connected through the metal plate 40, and the metal plate 40 is formed to have a shape that undergoes elastic deformation when the two adjacent housings are connected.
F04B 39/12 - Carcasses d'enveloppe; Cylindres; Culasses; Connexions des tubulures pour fluide
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
H02K 11/30 - Association structurelle à des circuits de commande ou à des circuits d’entraînement
In this motor control device having a function of detecting a rotor position in a synchronous motor without using a sensor, occurrence of erroneous detection of a rotor position is prevented and control of the synchronous motor based on the rotor position can be stabilized in both of a normal region and a flux weakening region. A motor control device 1 includes: a first rotor position detection unit 19 that detects the rotor position in a synchronous motor 2 on the basis of an induced voltage electrical angle and a first induced voltage phase obtained from a current wave peak value and a difference between an induced voltage electrical angle and the current electrical angle; a second rotor position detection unit 20 that detects the rotor position in the synchronous motor 2 on the basis of the induced voltage electrical angle and a second induced voltage phase obtained from an interlinkage flux and the current wave peak value; and a selection unit 21 that selects the first rotor position detection unit 19 or the second rotor position detection unit 20, on the basis of the current wave peak value and the first induced voltage phase or the second induced voltage phase.
H02P 6/182 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position utilisant la force contre-électromotrice dans les enroulements
H02P 6/185 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position utilisant la détection par inductance, p.ex. excitation par impulsion
A structure of a hinge mechanism of a variable displacement compressor is simplified. This variable displacement compressor is provided with a hinge mechanism 140 comprising a rotor arm 141, a swash plate arm 142, a pin 143, and a protruding part 144. The rotor arm 141 comprises two rotor arm wall parts 141a, 141b facing each other. The swash plate arm 142 is inserted between inner wall surfaces 141a1, 141b1 of the rotor arm 141, and comprises two swash plate arm wall parts 142a, 142b facing each other. The pin 143 is linked between both distal end parts 142a2, 142b2 of the two swash plate arm wall parts 142a, 142b. The protruding part 144 is provided to protrude in a prescribed area of a rotor 111 between the two rotor arm wall parts 141a, 141b, and has an inclined surface 144a inclined so that the distance from an end surface of the rotor 111 increases as the distance from the center of the rotor 111 decreases. The pin 143 abuts on the inclined surface 144a.
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
In this motor control device having a function of detecting a rotor position in a synchronous motor without using a sensor, occurrence of erroneous detection of a rotor position is prevented and control of the synchronous motor based on the rotor position can be stabilized in both of a normal region and a flux weakening region. A motor control device 1 includes: a first rotor position detection unit 19 that detects the rotor position in a synchronous motor 2 on the basis of a current electrical angle and a first current phase obtained from a current wave peak value and a difference between an induced voltage electrical angle and the current electrical angle; a second rotor position detection unit 20 that detects the rotor position in the synchronous motor 2 on the basis of the current electrical angle and a second current phase obtained from an interlinkage magnetic flux and the current wave peak value; and a selection unit 21 that selects the first rotor position detection unit 19 or the second rotor position detection unit 20, on the basis of the current wave peak value and the first current phase or the second current phase.
H02P 6/182 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position utilisant la force contre-électromotrice dans les enroulements
H02P 6/185 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position utilisant la détection par inductance, p.ex. excitation par impulsion
Provided is an electric compressor in which the connection strength between an inverter circuit part and an electrical circuit part connected thereto by a connection terminal has been improved. An inverter circuit part (3) comprises an inverter control board (17) and a resin-molded sleeve assembly (18). In the sleeve assembly, a sleeve (32) and a terminal connector (23) are integrally resin molded such that a screw thread section is in a protruded state. In the terminal connector, the inverter control board (3) and a filter-side connection terminal (71) of a filter circuit part (4) are fastened to each other by means of a nut (92) that screws onto the screw thread section, and the inverter control board (17) and the filter circuit part (4) are electrically connected.
F04B 39/14 - Dispositions permettant un montage ou démontage commodes
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
Provided is an electric compressor in which the oscillation of a filter circuit part that absorbs the high-frequency components of a switching current has been reduced. A filter circuit part (5) comprises a filter circuit board (66) on which electrical components such as a smoothing capacitor (63) are mounted, and a resin support member (67) which accommodates the electrical components. The support member (67) is resin molded so as to integrate a sleeve (68) having prescribed dimensions into which a bolt (36) for affixing a filter circuit part (4) to a housing (2) is inserted. The filter circuit part (4) is affixed to the housing (2) by the bolt (36) in a state in which the sleeve (68) is in contact with the housing (2).
F04B 39/12 - Carcasses d'enveloppe; Cylindres; Culasses; Connexions des tubulures pour fluide
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
Provided is an electric compressor in which the connection strength between an electric circuit part and connection terminals has been improved. A filter circuit part (4) comprises a filter circuit board (66) and a support member (67). Bursiform nut members (69) are integrally resin molded in the support member. The filter circuit board and a power source-side connection terminal (31) are fastened to each nut member by a screw (93), and the filter circuit board and the power source-side connection terminals are electrically connected. Guide parts (76) for restricting the positional offset of the power source-side connection terminals during fastening and ensuring the insulation spacing between the power source-side connection terminals are formed in the support member.
F04B 39/14 - Dispositions permettant un montage ou démontage commodes
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
The purpose of the present invention is to facilitate the work to assemble an electric compressor to which an inverter circuit part and a filter circuit part are attached. The inverter circuit part (3) comprises an inverter control board (17), a sleeve assembly (18) and a power module (14). The inverter control board, the sleeve assembly and the power module are integrated. The filter circuit part (4) comprises a filter circuit board (66) and a support member (67). The filter circuit board (66) and the support member (67) are integrated. The inverter circuit part and the filter circuit part are individually accommodated within an inverter accommodation part (8) from the same direction, and have structures that can be detachably attached to the housing (2).
F04B 39/14 - Dispositions permettant un montage ou démontage commodes
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
Provided is an electric compressor in which the connection strength between an inverter circuit part and lead terminals from a motor has been improved. An electric compressor (1) is configured by electrically connecting lead terminals (24-26) of a motor to an inverter circuit part (3) for supplying power to the motor by means of a motor-side connection terminal (28). In the inverter circuit part (3), terminal connectors (19-21) having a screw thread section are provided in a protruding state. The motor-side connection terminal (28) has a flat terminal section. The flat terminal section is affixed to the inverter circuit part (3) by nuts (91) that screw onto the screw thread sections of the terminal connectors (19-21), and is electrically connected to the inverter circuit part (3) in that state.
F04B 39/14 - Dispositions permettant un montage ou démontage commodes
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
H01R 4/34 - Conducteurs logés sous la tête d'une vis
H01R 4/38 - Connexions par serrage; Connexions par ressort utilisant un organe de serrage actionné par une vis ou par un écrou
H01R 11/12 - Pièces d'extrémité se terminant par un œillet, un crochet ou une fourchette
The present invention has improved oil separation performance. The present invention is provided with: a secondary separation chamber 42 configured so that, when a heat medium containing oil flows into an inner space extending in a top-bottom direction and circular in horizontal cross-section and swirls circumferentially along an inner peripheral surface 55, the centrifugal action of the heat medium which is caused by the swirling separates the heat medium and the oil; and a communication hole 46 communicating with the lower part of the secondary separation chamber 42 and discharging the secondarily separated oil in the direction opposite the direction of the swirling flow.
B01D 45/12 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge en utilisant la force centrifuge
B04C 5/14 - Structure du guide pour la phase lourde; Structure de l'apex; Aménagement d'évacuation
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
Provided is an electric compressor in which the difficulty of the work to attach a power switching element to an installation plate of a power module has been reduced. A power switching element (13) of a power module (14) is mounted on an installation plate (43) with an insulating sheet (52) interposed therebetween. The electric compressor comprises a male screw (47) that stands upright from the installation plate, and a resin cover member (49) that covers the male screw such that a screw thread section of the male screw is in an exposed state. The power switching element and the insulating sheet are disposed on the installation plate in a state in which the male screw passes therethrough, and are affixed to the installation plate by a nut (54) that screws onto the screw thread section,. When in this state, the resin cover member is interposed between the male screw and the power switching element and insulating sheet.
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
F04B 39/14 - Dispositions permettant un montage ou démontage commodes
Provided is an electric compressor in which the number of components on an inverter circuit part attached on the interior of an inverter accommodation part can be reduced, making miniaturization possible. A sleeve assembly (14) of an inverter circuit part (3) comprises positioning pins (37, 38) for an inverter control board (17) and a power module (14). The positioning pins (37, 38) are hot-crimped while the sleeve assembly (18) is sandwiched by the inverter control board (17) and the power module (14) to integrate said elements. The integrated inverter circuit part (3) is attached to the interior of an inverter accommodation part (8) formed on the outer surface of a housing (2).
F04B 39/14 - Dispositions permettant un montage ou démontage commodes
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
71.
CAPACITY CONTROL VALVE OF VARIABLE-CAPACITY COMPRESSOR
Provided is a capacity control valve for suppressing a decrease in the compression efficiency of a variable-capacity compressor. In the capacity control valve 300, a minimum flow passageway cross-sectional area of a supply passageway 145 is defined by a gap between an outer peripheral surface of an advance part 322b that advances into a first valve hole 321d and an inner peripheral surface of a straight opening part 321d1. A first distance L1 from a portion of a first abutting part 322c that abuts on a first valve hole opening peripheral edge 321b2 to a portion of an intermediate portion 324a that abuts on a connecting surface 323c is longer than a second distance L2 from a valve chamber one-end wall 321b1 to the connecting surface 323c of a second valve part 323 in a state of abutting on the second valve hole opening peripheral edge 321g2. A third distance L3 from a distal end of the advance part 322b to a portion of the intermediate portion 324a that abuts on the connecting surface 323c of the second valve part 323 is smaller than or equal to a fourth distance L4 from a valve chamber-side edge of the straight opening part 321d1 to the connecting surface 323c of the second valve part 323 in a state of abutting on the second valve hole opening peripheral edge 321g2.
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F16K 11/04 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets
H02P 3/22 - Dispositions pour l'arrêt ou le ralentissement de moteurs, génératrices électriques ou de convertisseurs dynamo-électriques pour arrêter ou ralentir individuellement un moteur dynamo-électrique ou un convertisseur dynamo-électrique pour arrêter ou ralentir un moteur à courant alternatif par freinage sur court-circuit ou sur résistance
A variable capacity compressor in which: when the pressure of a passage that is upstream of a switching valve 400 that is provided downstream of a control valve that adjusts the aperture of a supply passage that supplies refrigerant that is inside a discharge chamber to a control pressure chamber rises above the pressure of the control pressure chamber, a main valve body 420 opens a first port 501, an auxiliary valve body 430 opens a first internal passage 423 of the main valve body 420, and refrigerant in the upstream-side passage flows into a valve chamber 410 and then, via the first internal passage 423 and a second port 502, flows out into a downstream-side passage; and when the pressure of the upstream-side passage drops below the pressure of the control pressure chamber, the auxiliary valve body 430 operates in advance of the main valve body 420 and closes the first internal passage 423, the main valve body 420 opens a third port 503, and refrigerant in the downstream-side passage flows into the valve chamber 410 and then, via the third port 503, flows out into an intake chamber. The second port 502 is formed by an internal space 414c of a guide sleeve 414, and the auxiliary valve body 430 is movably housed in the second port 502.
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
F04B 49/12 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la course des organes de travail
To ensure equal potential between housings, the housings are electrically connected regardless of whether a gasket is interposed in the split-type housing of this electric compressor. A gasket (16) interposed between the housings is configured so as to include a metal base material and a rubber layer that covers both sides thereof. Moreover, the gasket (16) has an annular shape and comprises annular beads (101, 102) on the inner edge side and the outer edge side thereof, respectively. Here, electrical connection sections (exposed metal base material sections) (109) are provided between the beads (101, 102) on both surfaces by removing portions of the rubber layer to expose the metal base material. The exposed metal base material sections (109) on a raised surface (105) side are provided at the edge section of bolt through-holes (107).
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 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
F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique
75.
VARIABLE DISPLACEMENT COMPRESSOR AND METHOD FOR ASSEMBLING SLEEVE THEREOF
The present invention addresses the problem of providing stable support for a swash plate and improving the assemblability of a sleeve in a variable displacement compressor. This variable displacement compressor 100 includes a swash plate 112 having an engagement part 112a which engages with a sleeve 130 attached to a drive shaft 110, wherein the movement of the swash plate 112 in the direction in which an inclination angle θ changes with respect to the drive shaft 110 is guided by the sleeve 130. The outer surface 133 of the sleeve 130 is formed in a continuous convex spherical surface shape over the entirety of the periphery the sleeve, and the engagement inner surface 112a1 of the engagement part 112a is formed in a concave spherical surface shape matched to the sleeve 130. A pair of groove parts 112f, 112f recessed in the engagement inner surface 112a1 extend, in the thickness direction of the swash plate 112, from one end surface in the thickness direction to a predetermined groove end position. The groove end position is set to a first position Z1, in the thickness direction, corresponding to a sphere center position C1 of a spherical body defined by the engagement inner surface 112a1 of the engagement part 112a, or is set to a predetermined second position between the first position Z1 and the other end surface of the swash plate 112 in the thickness direction.
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
76.
CAPACITY CONTROL VALVE FOR VARIABLE CAPACITY COMPRESSOR
Provided is a capacity control valve for a variable capacity compressor. The capacity control valve can prevent valve body malfunctions caused by minute foreign matter that is included in inwardly flowing refrigerant. A capacity control valve 200 that includes: a valve housing 210 that has formed therein an intake chamber communication space 211 that communicates with an intake chamber 119, a control pressure chamber communication space 212 that communicates with a control pressure chamber 105, and a discharge chamber communication space 213 that communicates with a discharge chamber; a bellows (a pressure-sensitive member) 223 that is arranged in the intake chamber communication space 211 and that senses the pressure of the intake chamber and thereby expands/contracts; a valve body 222 that is arranged in the control pressure chamber communication space 212 and that opens/closes a valve hole 220 that forms a part of a supply passage; and a rod member 221 that is inserted through an insertion hole 219 so as to be capable of moving in the axial direction and that transmits the expansion/contraction of the bellows 223 to the valve body 222. The insertion hole 219 is formed in a different location from the valve hole 220 and is demarcated from the discharge chamber communication space 213.
F16K 31/365 - Moyens de fonctionnement; Dispositifs de retour à la position de repos actionnés par un fluide et dans lesquels il y a alimentation constante du moteur à fluide par le fluide provenant de la canalisation le fluide agissant sur un diaphragme
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F16K 51/00 - Autres détails non particuliers aux types de soupapes ou clapets ou autres appareils d'obturation
77.
CAPACITY CONTROL VALVE FOR CLUTCH-EQUIPPED SWASH-PLATE-TYPE VARIABLE CAPACITY COMPRESSOR
Provided is a capacity control valve that is particularly suited for use in a clutch-equipped swash-plate-type variable capacity compressor. A capacity control valve 200 that includes: a valve internal supply passage 250 that has a narrowed part (a valve hole 220) and forms a part of a supply passage that is for supplying refrigerant that is inside a discharge chamber 120 to a control pressure chamber 105; a valve internal discharge passage 260 that forms a part of a discharge passage that is for discharging refrigerant that is inside the control pressure chamber 105 to an intake chamber 119; a solenoid part 270; a connection member 224 that, when the pressure of the intake chamber 119 is above a set pressure that corresponds to the energization of the solenoid part 270, increases the degree to which the valve internal discharge passage 260 is open and, when the pressure of the intake chamber 119 is below the set pressure, decreases the degree to which the valve internal discharge passage 260 is open; and a valve body 222 that is urged in the direction of closing the valve internal supply passage 250 but, when the connection member 224 has closed the valve internal discharge passage 260, is pressed thereby and thereby opens the valve internal supply passage 250.
Provided is a compressor having a structure that allows vacuuming work to be performed in the same way as before and that is able to suppress flow of liquid refrigerant and oil from an intake passage to the outside of the compressor. A compressor 100 is provided with a valve device 30 comprising a first regulation valve 40 and a second regulation valve 60 that regulate the degree of opening of an intake passage L11. The first regulation valve 40 regulates the degree of opening of a first passage 41, and the second regulation valve 60 regulates the degree of opening of a second passage 61 that branches off from the upstream area of the first passage 41 and that reaches an intake chamber H1. Biasing force for biasing a first valve body 44 of the first regulation valve 40 in a valve closing direction is set such that, when a differential pressure ΔP is less than a predetermined value C, the first valve body 44 closes the first passage 41. Biasing force for biasing a second valve body 62 of the second regulation valve 60 in a valve closing direction is set such that, when air collides with a reception surface 67, a valve-opened state in which the second valve body 62 opens the second passage 61 is maintained, and when the liquid refrigerant collides with the reception surface 67, the second valve body 62 closes the second passage 61.
F04B 39/10 - Adaptation ou aménagement des organes de distribution
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
The present invention achieves a variable displacement compressor that ensures stable operation of a spool in a second control valve for regulating the opening degree of a discharge passage through which a refrigerant of a pressure control chamber such as a crank case is discharged into an intake chamber. A spool 430 of a second control valve 400 in this variable displacement compressor has: a valve body 431 disposed in a valve chamber 410; a pressure receiving part 432 disposed in a back-pressure chamber 420; and a shaft part 433 that is inserted through an insertion through-hole 442a so as to connect the valve body 431 and the pressure receiving part 432, wherein the spool 430 is capable of moving in the axial direction of the insertion through-hole 442a. The spool 430 is formed so as to be capable of being tilted with respect to the axis line of the insertion through-hole 442a. The spool 430 is configured such that when maximally tilted to the axis line of the insertion through-hole 442a, the outer peripheral surface of the valve body 431 is brought into contact with the inner surface of the valve chamber 410, while the outer peripheral surface of the shaft part 433 is brought into contact with the inner surface of the insertion through-hole 442a.
Provided is an interlock apparatus for a high-voltage device, the apparatus being capable of accurately detecting separation of a connector as an unsafe condition (connector disconnection, failure, or the like) even when the interlock apparatus itself, including an interlock loop, has failed. The present invention is provided with: an interlock loop 16 that is linked to an HV connector 7 for connecting an electric compressor to an HV battery 8; a voltage level generation unit that generates a voltage level that differs in accordance with the condition of the interlock loop; a voltage level determination unit that outputs a determination result (L/H signal) in accordance with the voltage level generated by the voltage level generation unit; and a controller 9 that outputs the L/H signal and diagnoses the condition of the interlock loop on the basis of the output of the voltage level determination unit.
B60R 16/02 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleurs; Agencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques
B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquement; Contrôle des paramètres de fonctionnement, p.ex. de la vitesse, de la décélération ou de la consommation d’énergie
H01R 13/66 - Association structurelle avec des composants électriques incorporés
81.
ELECTROMAGNETIC COIL UNIT AND ELECTROMAGNETIC CLUTCH PROVIDED WITH ELECTROMAGNETIC COIL UNIT
The present invention provides an electromagnetic clutch which suppresses electrical short circuit between aluminum wires wound around a bobbin, while improving the heat dissipation performance of an electromagnetic coil. An electromagnetic coil unit 30 which is provided with: a coil case 31; and an electromagnetic coil 32 which is formed by winding up a wire 35 for coils, and which is contained within the coil case 31. This electromagnetic coil unit is characterized in that: the wire 35 for coils is formed of an aluminum wire 35a; and an alumite layer 35b is formed on the outer circumferential surface of the aluminum wire 35a.
F16D 27/10 - Embrayages actionnés magnétiquement; Leur commande ou leurs circuits électriques avec un électro-aimant ne tournant pas avec un organe de l'embrayage, c. à d. sans bagues collectrices
F16D 27/112 - Embrayages actionnés magnétiquement; Leur commande ou leurs circuits électriques avec un électro-aimant ne tournant pas avec un organe de l'embrayage, c. à d. sans bagues collectrices avec des organes d'embrayage mobiles selon l'axe avec des surfaces de friction plates, p.ex. des disques
H01F 7/06 - Electro-aimants; Actionneurs comportant des électro-aimants
This variable-capacity compressor has a second control valve for adjusting the degree of opening of a discharge passage for discharging a refrigerant of a control pressure chamber into a suction chamber, the structure of the second control valve being simplified so as to achieve cost reduction and improved productivity. The variable-capacity compressor includes a second control valve 350 which has a valve element 351 housed in a movable manner in a housing chamber 104g and which adjusts the degree of opening of the discharge passage. The valve element 351 includes a valve section 351a, and a delimiting section 351b for delimiting the inside of the housing chamber 104g into a first space 104g3 and a second space 104g4. The valve element 351 moves within the housing chamber 104g in response to a pressure difference, and is configured so that closure, by the valve section 351a, of a second port 353 and a third port 151b forming a part of an exhaust passage minimizes the degree of opening of the exhaust passage, and opening of the second port 353 and the third port 151b by the valve section 351a maximizes the degree of opening of the exhaust passage.
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
F04B 39/10 - Adaptation ou aménagement des organes de distribution
Provided is a scroll fluid machine capable of, even when a sliding bearing is used as a main bearing, smoothly supplying oil and reducing an axial load exerted on an auxiliary bearing. The scroll fluid machine is provided with a back pressure chamber (39) formed between a center plate (7) and the back surface of an end plate (31) of a movable scroll (22). A main bearing (18) is formed of a sliding bearing. The back pressure chamber is partitioned into a first back pressure chamber (39A) located on the opposite side of the movable scroll when viewed from the main bearing and a second back pressure chamber (39B) located on the movable scroll side when viewed from the main bearing. The first back pressure chamber and the second back pressure chamber are connected in a radial clearance between the main bearing and a drive shaft (14). The discharge side of a scroll mechanism (4) is connected to the first back pressure chamber.
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
Provided is a scroll fluid machine capable of, even when a sliding bearing is used as a main bearing, solving a problem caused by axial movement of a drive shaft. The scroll fluid machine is provided with: a scroll mechanism (4) including a stationary scroll (21) and a movable scroll (22); a drive shaft (14) which drives the movable scroll; a main bearing (18) which rotatably supports the drive shaft on the scroll mechanism side; and an auxiliary bearing (16) which rotatably supports the drive shaft on the opposite side of the scroll mechanism when viewed from the main bearing. The main bearing is formed of a sliding bearing, the auxiliary bearing is formed of a rolling bearing, and a wave washer (52) which biases the drive shaft toward the auxiliary bearing is provided.
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 29/00 - "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
The purpose of the present invention is to prevent a spool from malfunctioning because of the inclusion of foreign matter. A variable displacement compressor 100 is provided with: a first control valve 300 for controlling the degree of opening of a supply passage 145; a check valve 350; a second control valve 400 for controlling the degree of opening of a discharge passage 146; and a back-pressure release passage 147. The second control valve 400 has: a back-pressure chamber 410 in communication with an intermediate supply passage 145b1; a valve chamber 420 having formed therein a valve hole 103d and a discharge hole 431a and constituting a part of the discharge passage 146; a partition member 430 for separating the back-pressure chamber 410 and the valve chamber 420; and a spool 440 extending through a through-hole 432a formed in the partition member 430. The spool 440 has a pressure receiving section 441 which is disposed within the back-pressure chamber 410, a valve section 442 which is disposed within the valve chamber 420, and a shaft section 443, and the spool 440 is supported so as to be slidable in an opening and closing direction relative to the patition member 430 while a spool valve 440a comprising the valve section 442 and the shaft section 443 is in sliding contact with the partition member 430.
This control valve used for a variable capacity compressor suppresses the infiltration of foreign substances into a slidable support part which slidably supports a valve unit including a valve part for opening/closing a valve hole. A valve body 311 of this control valve configured to suppress the amount of refrigerant, which is inside a discharge chamber and supplied to a control pressure chamber, has: a first port 320 through which the refrigerant inside the discharge chamber is introduced; a second port 321 through which the refrigerant inside the discharge chamber introduced through the first port 320 is discharged; a connection passage which connects the inlet port 320 and the outlet port 321 through a valve chamber 315 and a valve hole 316 open to the valve chamber 315; and a support hole 317 communicating with the valve hole 316. The support hole 317 slidably supports a valve unit 350 including a valve part 351 which opens/closes the valve hole 316. The first port 320 extends to the valve hole 316 and is inclined so as to approach a valve chamber 315-side opening of the valve hole 316 when going from the outer peripheral surface side of the valve body 311 toward a center line X.
According to the present invention, the pressure in a crank chamber increases quickly in a variable capacity compressor. This variable capacity compressor has a control valve 300 configured to control the opening degree of a supply passage for supplying a refrigerant in a discharge chamber to a crank chamber and the opening degree of a discharge passage between the crank chamber and an intake chamber. In the control valve 300, a communication passage 363 for communicating a first valve hole 316 and a second valve hole 320 includes: a cylindrical first communication passage 363a between the inner peripheral surface of a through-hole 364 of a sub valve body 362 of a sub valve body unit 360 and the outer peripheral surface of a main valve body unit 350; and a second communication passage 363b which extends past the outer peripheral surface side of a first sub valve part 362a of the sub valve body 362 and through which a first region S1, serving as a back pressure region, and the first communication passage 363a communicate with each other.
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F16K 1/44 - Parties d'obturation - Détails du siège ou du corps de soupape pour les soupapes à double siège
F16K 11/10 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont plusieurs éléments de fermeture ne se déplacent pas comme un tout
Provided is an inverter-integrated electric compressor capable of highly efficient operation, while effectively cooling power switching elements. An inverter circuit unit 16 has a plurality of power switching elements 18 and a smoothing capacitor 19, and is accommodated inside an inverter accommodation unit 6 formed in the axial direction of a housing 2. The power switching elements 18 are disposed radially at positions avoiding locations corresponding to a drive shaft 13 of a motor 8, and have a heat exchange relationship with a partition wall 3 of the housing 2. The smoothing capacitor 19 is disposed in a position surrounded by the power switching elements 18.
F04B 39/06 - Refroidissement; Chauffage; Prévention du gel
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 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
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
Provided is an inverter-integrated electric compressor with which, even when the compressor has been reduced in size, an inverter-accommodating part and an inverter cover can be brought into direct contact to ensure an electrical connection between the two, and vibration of the inverter cover can be minimized. The inverter-integrated electric compressor includes: a metal housing 7 having a compressor case 5 that accommodates a compression mechanism and an electric motor that drives the compression mechanism, and a bottomed tubular inverter case 6 that accommodates an inverter for driving the electric motor; and a metal inverter cover 9 that closes an opening in the inverter case 6. The inverter case 6 and the inverter cover 9 are electrically connected by the tip of a protrusion 66, which stands upright from the inner bottom part of the inverter case 6, being in contact with a protrusion 92 formed on the inner surface of the inverter cover 9.
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
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
The purpose of the present invention is to mitigate or prevent a decrease in the mass flow rate of a fluid being discharged. A compressor 100 is provided with the following: a housing 10 that extends in one direction; an internal housing 40 that is disposed between an intake chamber H1 formed on one end in the housing 10, and a discharge chamber H2 formed on the other end in the housing 10; and a movable scroll 3 that is a compression mechanism that is provided in the internal housing 40, that compresses a fluid guided into the intake chamber H1, and that discharges the compressed fluid into the discharge chamber H2. The housing 10 includes a front housing 11 having an internal wall surface W1 that is exposed to the intake chamber H1, a rear housing 13 having an internal wall surface W2 that is exposed to the discharge chamber H2, and a center housing 12 that connects the front housing 11 to the rear housing 13 and has a thermal conductivity lower than the thermal conductivity of the rear housing 13.
Provided is a rocking plate type variable displacement compressor configured to prevent the generation of rattling of a plurality of members connected so as to be movable relative to each other. This rocking plate type variable displacement compressor 1 comprises a drive shaft 10, a rotor 20, a swash plate 30, and rocking plates 40, 84. The rocking plates are connected to the swash plate 30 through a radial bearing 72 and are connected in a rockable manner to the drive shaft 10 through rotation prevention mechanisms 82, 86, 88. A first pin member 30B provided to a second arm 30A of the swash plate 30 is inserted in a movable manner into a long hole 20B provided in a first arm 20A of the rotor 20, and this configuration enables the swash plate 30 to tilt relative to the drive shaft 10. An extension coil spring 90 for urging the swash plate 30 in a direction intersecting the axis of the drive shaft 10 is provided between the first pin member 30B and a second pin member 10A which is provided to the drive shaft 10.
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
92.
SOLENOID CONTROL VALVE AND VARIABLE CAPACITY COMPRESSOR PROVIDED WITH SAME
Provided is a solenoid control valve with which manufacturing costs and management costs can be reduced compared to the prior art. In a solenoid control valve 300, a fixed iron core 332 comprises: a fitting part 332b1 that is fitted into a fitting hole 331e formed in an end surface 331d of a solenoid housing 331; and a projection part 332b2 that projects from the end surface 331d of the solenoid housing 331 toward a valve body 311, and that has an inner space. A distal end-side portion 332b3 of the projection part 332b2 is fitted into a fitting hole 314 formed in the valve body 311 so that the valve body 311 and the solenoid housing 331 are integrated via the fixed iron core 332. The inner space of the projection part 332b2 of the fixed iron core 332 constitutes a valve chamber 337 that accommodates a valve body 341.
The purpose of the present invention is to improve ease of assembly in an inverter-integrated electric compressor to a greater extent than in the prior art while ensuring vibration resistance in an electronic component that is susceptible to vibration. A filter circuit board constituting part of an inverter includes an electronic component 72 in which an electronic component element such as a smoothing capacitor is secured inside a case, and a printed circuit board 71 configured so as to have the electronic component 72 attached thereto and also to be secured to a housing. The electronic component 72 has: connecting terminals 721-723 that extend upward from the electronic component element, are inserted in insertion holes 711-713 formed in the printed circuit board 71, and are configured such that portions projecting from the insertion holes 711-713 are soldered to the printed circuit board 71; screw holes 724, 724 as first secured parts secured to the printed circuit board 71; and screw insertion holes 726, 726 as second secured parts secured to the housing.
H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p.ex. façonnées pour former des boîtes à connexions ou à bornes
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 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
Provided is a variable displacement compressor capable of preventing the intrusion of foreign matter into a second control valve. A variable displacement compressor 100 comprises: a first control valve 300 that controls the opening degree of a supply passage 145; a check valve 350; a second control valve 400 that controls the opening degree of an exhaust passage 146; and a back pressure relief passage 147 that communicates an intermediate supply passage 145b1 and an intake chamber 141. The second control valve 400 includes: a back pressure chamber 410 that communicates with the intermediate supply passage 145b1 via a communication path 104k; a valve chamber 420 where a valve hole 103d and an exhaust hole 431a are open and that constitutes a portion of the exhaust passage 146; a partition member 430 that partitions the back pressure chamber 410 and the valve chamber 420; and a spool 440. A communication path-side connection site 104k1, which extends from at least a connection section 104e of the communication path 104k to the backpressure chamber 410 side, extends out at an acute angle with respect to a communication path 104d which extends from a connection section 104e of the intermediate supply passage 145b1 to the first control valve 300 side.
Provided is a variable displacement compressor capable of preventing the intrusion of foreign matter into a second control valve. A variable displacement compressor 100 comprises: a first control valve 300 that controls the opening degree of a supply passage 145; a check valve 350; a second control valve 400 that controls the opening degree of an exhaust passage 146; and a back pressure relief passage 147. The second control valve 400 includes: a back pressure chamber 410 that communicates with an intermediate supply passage 145b1; a valve chamber 420 where a valve hole 103d and an exhaust hole 431a are open and that constitutes a portion of the exhaust passage 146; a partition member 430 that partitions the back pressure chamber 410 and the valve chamber 420; and a spool 440. In a state where the first control valve 300 has closed the supply passage 145 and a valve seat side end surface 442a of a valve part 442 of the spool 440 is at the maximum distance from a valve seat 103f, an end wall side end surface 442b of the valve part 442 abuts an end wall 432 of the partition member 430, thereby cutting off the communication between the valve chamber 420 and back pressure chamber 410 which is via a through-hole 432a in the end wall 432.
The present invention promotes the miniaturization of a scroll type fluid machine. This scroll type fluid machine is provided with: a driving shaft 410 driven to rotate; a crank pin 420 eccentrically fixed to one end surface in an axial direction of the driving shaft 410; an eccentric bushing 430 eccentrically fixed to the crank pin 420 so as to be rotatable relative to the crank pin 420; a rotating scroll fixed to the eccentric bushing 430 so as to be rotatable relative to the eccentric bushing 430; and a fixed scroll engaged with the rotating scroll. Also, a projection 430A, which extends from one end surface of the eccentric bushing 430 toward the driving shaft 410 and contacts a portion of an outer circumferential surface of the driving shaft 410, is formed on the one end surface of the eccentric bushing 430. Also, the driven amount of the rotating scroll with respect to the driving shaft 410 is restricted by the projection 430A.
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 29/00 - "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
A variable displacement compressor, wherein a delay in the pressure discharge of a control pressure chamber such as a crank chamber is prevented. A switching valve (350) is provided nearer to a crank chamber (140) than is a control valve (300) of a pressure supply passage (145). The switching valve (350) is switched between a first state of allowing communication between a first valve hole (104c1) and a second valve hole (151a), and a second state of allowing communication between the second valve hole (151a) and a pressure discharge hole (351a1) that communicates with a suction chamber (141). The switching valve (350) includes a dividing member (351), a spool (352), and an internal passage (352e). The spool (352) comprises a first valve part (352a), a second valve part (352b), and a shaft part (352c). A first internal passage (352e1) of the internal passage (352e) extends, along an axis line O2, through the second valve part (352b) and the shaft part (352c) in the spool (352) to an area inside the first valve part (352a). The second valve part (352b) is formed integrally with the shaft part (352c).
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F16K 11/10 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont plusieurs éléments de fermeture ne se déplacent pas comme un tout
The purpose of the present invention is to prevent a delay in releasing pressure from a control pressure chamber such as a crank chamber in a variable displacement compressor. A switching valve (350) is disposed on a pressure supply passage (145) on the side closer to a crank chamber (140) than a control valve (300). The switching valve (350) switches between a first state in which a first valve hole (104c1) and a second valve hole (151a) are caused to communicate with each other and a second state in which the second valve hole (151a) and a pressure-release hole (351a1) communicating with an intake chamber (141) are cause to communicate with each other. The switching valve (350) includes a partition member (351), a first valve section (352a), a second valve section (353b), a shaft section (352c), a communication passage (352d), and an internal passage (352e). A sliding part (352a1) of the first valve section (352a) has a receiving surface (352f) which a refrigerant flowing into a second region (S12) through a first internal passage (352e1) collides against such that the receiving surface receives a dynamic pressure acting in a direction away from a second valve seat (151b) disposed around the second valve hole (151a). The outer diameter of a rear end part (352a3) of the first valve section (352a) is smaller than the outer diameter of the sliding part (352a1).
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F16K 11/044 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à corps de soupape ou de clapet mobiles situés entre des sièges de soupape ou de clapet
The present invention reduces startup torque of a swash-plate-type variable displacement compressor. A swash-plate-type variable displacement compressor (100) is provided with a drive shaft (200) that is rotatably driven, a lug plate (250) integrally fixed to the drive shaft (200), a swash plate (300) tiltably fixed to the drive shaft (200), a link mechanism (350) for linking the lug plate (250) and the swash plate (300) while allowing tilting, and an actuator (400) that is installed between the lug plate (250) and the swash plate (300) and that uses pressure to change the tilt angle of the swash plate (300). The actuator (400) has: a cylindrical member (410) extending toward the swash plate (300) from one surface of the lug plate (250); a bottomed cylindrical member (420) fitted to the outer peripheral surface of the cylindrical member (410) so as to be capable of relative displacement; and a coil spring (430) that is installed in an internal space sectioned off by the lug plate (250), the cylindrical member (410), and the bottomed cylindrical member (420), and that urges the bottomed cylindrical member (420) in a direction away from the lug plate (250).
In a variable-capacity compressor according to the present invention, a delay in pressure relief of a control pressure chamber, such as a crank chamber, is prevented. A switching valve (350) that is disposed at a downstream side of a control valve in a pressure supply passage includes a main valve body (352) and a sub-valve body (400). The main valve body (352) has an inner passage (352d) that communicates between: a first valve hole (104e1) that communicates with a pressure supply passage (145a) located between the control valve and the switching valve (350); and a second valve hole (151a) that communicates with a pressure supply passage (145b) located between the switching valve (350) and the crank chamber. When a pressure Pm in the pressure supply passage (145a) is lower than a pressure Pc in the crank chamber, the main valve body (352) communicates between the second valve hole (151a) and a pressure relief hole (351a1) that communicates with a suction chamber. When the pressure Pm is lower than the pressure Pc, the sub-valve body (400) closes the inner passage (352d) of the main valve body (352). The sub-valve body (400) is lighter than the main valve body (352) and is operated, when the pressure Pm is reduced, prior to the main valve body (350) to close the inner passage (352d) of the main valve body (352).
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
F04B 27/12 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs groupes de cylindres ou de pistons
F04B 49/12 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la course des organes de travail
F16K 31/383 - Moyens de fonctionnement; Dispositifs de retour à la position de repos actionnés par un fluide et dans lesquels il y a alimentation constante du moteur à fluide par le fluide provenant de la canalisation le fluide travaillant directement sur les deux côtés du moteur à fluide, un des côtés étant relié par un étranglement et le moteur étant actionné par la décharge effectuée de ce même côté le fluide agissant sur un piston
brevets
