Abstract: A scroll type compressor includes a fixed scroll including a base plate and a scroll wall. The base plate has a main discharge port, a sub-discharge port, an injection port and a valve. The valve includes first and second arms and a valve base including an attaching portion. Each of the first and the second arms includes proximal and distal ends. The first and the second arms extend from the proximal ends on the valve base to the main discharge port and the sub-discharge port, respectively. The first and the second arms extend so as to come closer to each other at the distal ends thereof than at the proximal ends thereof. The injection port is disposed in an injection arrangement area that is an area located between the first and the second arms and expands larger on the proximal ends side than on the distal ends side.

Abstract: A fluid machine for a vehicle includes a rotary shaft, an electric motor having a coil, a drive circuit, and a housing having therein a motor chamber and a circuit chamber. The housing includes a partitioning wall partitioning between the motor chamber and the circuit chamber and a peripheral wall extending from the partitioning wall. The partitioning wall and the peripheral wall form the circuit chamber. The drive circuit includes a circuit board having a surface and an electronic component mounted on the surface of the circuit board. A connecting terminal is disposed extending through the partitioning wall and electrically connecting the coil with the drive circuit. A mounting lug is formed extending from the peripheral wall so as to mount the housing to the vehicle. The electronic component, the connecting terminals and the mounting lug are disposed in this order in the radial direction of the rotary shaft.

Abstract: A motor-driven compressor includes suction, discharge, and intermediate pressure housings. The accommodation housing includes a compression mechanism, which compresses refrigerant, and injection ports, which deliver intermediate pressure refrigerant to the compression mechanism from an external refrigerant circuit. The compressed refrigerant is discharged into the discharge housing. The intermediate pressure housing includes an intake port, which draws in the intermediate pressure refrigerant, an accommodation recess, which is connected to the intake port, and supply passages, which connect the accommodating recess to the injection ports. The accommodation recess accommodates the valve mechanism. The valve mechanism includes a valve plate, which has a valve hole that connects the intake port and the supply passages, and a reed valve formation plate including a reed valve, located between the valve plate and the supply passages, to open and close the valve hole.

Abstract: A fluid machine for a vehicle includes a rotary shaft, an electric motor having a coil, a drive circuit, and a housing having therein a motor chamber and a circuit chamber. The housing includes a partitioning wall partitioning between the motor chamber and the circuit chamber and a peripheral wall extending from the partitioning wall. The partitioning wall and the peripheral wall form the circuit chamber. The drive circuit includes a circuit board having a surface and an electronic component mounted on the surface of the circuit board. A connecting terminal is disposed extending through the partitioning wall and electrically connecting the coil with the drive circuit. A mounting lug is formed extending from the peripheral wall so as to mount the housing to the vehicle. The electronic component, the connecting terminals and the mounting lug are disposed in this order in the radial direction of the rotary shaft.

Abstract: A scroll type compressor includes a fixed scroll including a base plate and a scroll wall. The base plate has a main discharge port, a sub-discharge port, an injection port and a valve. The valve includes first and second arms and a valve base including an attaching portion. Each of the first and the second arms includes proximal and distal ends. The first and the second arms extend from the proximal ends on the valve base to the main discharge port and the sub-discharge port, respectively. The first and the second arms extend so as to come closer to each other at the distal ends thereof than at the proximal ends thereof. The injection port is disposed in an injection arrangement area that is an area located between the first and the second arms and expands larger on the proximal ends side than on the distal ends side.

Abstract: An electric compressor is provided with a compression mechanism, an electric motor, a motor housing, discharge housing and an intermediate pressure housing. The compression mechanism has a compression chamber and is driven by the electric motor. The motor housing accommodates therein the electric motor and the compression mechanism and formed therein an injection port. The discharge housing has therein a discharge chamber into which compressed refrigerant is discharged. The intermediate pressure housing has therein an introduction port for introducing intermediate pressure refrigerant from an external refrigerant circuit and a communication passage that provides communication between the introduction port and the injection port of the motor housing. The motor housing, discharge housing and the intermediate pressure housing has a bolt fastening hole, and a bolt is inserted in the bolt fastening holes to integrally fix the motor housing, discharge housing and the intermediate pressure housing.

Abstract: A stator core includes an insertion hole that has an opening in an outer peripheral surface of the stator core and a bent portion in the stator core. A cluster block includes an insertion piece, which is inserted into the insertion hole via the cornered portion. The cluster block is attached to the stator core by engaging the insertion piece with the insertion hole.

Abstract: A motor-driven compressor includes a compression unit, an electric motor, a housing that includes an accommodating chamber and a wiring connection port, a motor driving circuit that includes a substrate arranged in the accommodating chamber, wiring electrically connected to the substrate and extending out of the housing through the wiring connection port, and a resin sealing member fitted to the wiring connection port. The wiring includes a primary conductor, which has a first end connected to the substrate and a second end, and a secondary conductor, which is connected to the second end of the primary conductor and arranged outside the housing. The secondary conductor includes a wire portion and a sheath that is made of an insulating material and covers the wire portion. The sealing member covers the sheath and a junction between the primary conductor and the secondary conductor.

Abstract: A motor-driven compressor includes suction, discharge, and intermediate pressure housings. The accommodation housing includes a compression mechanism, which compresses refrigerant, and injection ports, which deliver intermediate pressure refrigerant to the compression mechanism from an external refrigerant circuit. The compressed refrigerant is discharged into the discharge housing. The intermediate pressure housing includes an intake port, which draws in the intermediate pressure refrigerant, an accommodation recess, which is connected to the intake port, and supply passages, which connect the accommodating recess to the injection ports. The accommodation recess accommodates the valve mechanism. The valve mechanism includes a valve plate, which has a valve hole that connects the intake port and the supply passages, and a reed valve formation plate including a reed valve, located between the valve plate and the supply passages, to open and close the valve hole.

Abstract: There is provided an electric compressor includes a compression mechanism, an electric motor, a motor housing having an injection port that communicates with one of compression chambers that is in the middle of the compression, a discharge housing having a discharge chamber into which compressed refrigerant is discharge, and an intermediate pressure housing disposed between the motor housing and the discharge housing. The intermediate pressure housing has an introduction port for introducing intermediate pressure refrigerant from an external refrigerant circuit and a communication passage between the introduction port and the injection port of the motor housing. The introduction port and the communication passage cooperate with the injection port to allow the intermediate pressure refrigerant to be injected into the compression chamber. The communication passage has in the middle thereof a muffler chamber. A partition member separates the muffler chamber and the discharge chamber.

Abstract: An electric compressor is provided with a compression mechanism, an electric motor, a motor housing, discharge housing and an intermediate pressure housing. The compression mechanism has a compression chamber and is driven by the electric motor. The motor housing accommodates therein the electric motor and the compression mechanism and formed therein an injection port. The discharge housing has therein a discharge chamber into which compressed refrigerant is discharged. The intermediate pressure housing has therein an introduction port for introducing intermediate pressure refrigerant from an external refrigerant circuit and a communication passage that provides communication between the introduction port and the injection port of the motor housing. The motor housing, discharge housing and the intermediate pressure housing has a bolt fastening hole, and a bolt is inserted in the bolt fastening holes to integrally fix the motor housing, discharge housing and the intermediate pressure housing.

Abstract: A motor-driven compressor includes a connector to which a first and second conductors are connected, and a connector case receiving the connector. The connector case includes a first case member and a second case member. A seal member is provided between the first and second case members. The first case member has a first sealing surface extending along the periphery of the first case member. The second case member has a second sealing surface extending along the periphery of the second case member and facing the first sealing surface. The seal member includes a main seal portion for sealing between the first sealing surface and the second sealing surface. The main seal portion has a first peripheral seal portion for sealing the periphery of the first conductor inserted therethrough and has a second peripheral seal portion for sealing the periphery of the second conductor inserted therethrough.

Abstract: [Object] To provide a scroll compressor capable of improving compression efficiency. [Means of Solution] In a scroll compressor 1, a fixed scroll 16 includes a fixed base plate 16c, and a fixed spiral wrap 16d integral with the fixed base plate 16c, while a movable scroll 22 includes a movable base plate 22a facing to the fixed base plate 16c and a movable spiral wrap 22b integral with the movable base plate 22a and meshing with the fixed spiral wrap 16d.

Abstract: A motor-driven compressor includes a compression unit, an electric motor, a housing that includes an accommodating chamber and a wiring connection port, a motor driving circuit that includes a substrate arranged in the accommodating chamber, wiring electrically connected to the substrate and extending out of the housing through the wiring connection port, and a resin sealing member fitted to the wiring connection port. The wiring includes a primary conductor, which has a first end connected to the substrate and a second end, and a secondary conductor, which is connected to the second end of the primary conductor and arranged outside the housing. The secondary conductor includes a wire portion and a sheath that is made of an insulating material and covers the wire portion. The sealing member covers the sheath and a junction between the primary conductor and the secondary conductor.

Abstract: A stator core includes an insertion hole that has an opening in an outer peripheral surface of the stator core and a bent portion in the stator core. A cluster block includes an insertion piece, which is inserted into the insertion hole via the cornered portion. The cluster block is attached to the stator core by engaging the insertion piece with the insertion hole.

Abstract: A motor-driven compressor includes a connector to which a first and second conductors are connected, and a connector case receiving the connector. The connector case includes a first case member and a second case member. A seal member is provided between the first and second case members. The first case member has a first sealing surface extending along the periphery of the first case member. The second case member has a second sealing surface extending along the periphery of the second case member and facing the first sealing surface. The seal member includes a main seal portion for sealing between the first sealing surface and the second sealing surface. The main seal portion has a first peripheral seal portion for sealing the periphery of the first conductor inserted therethrough and has a second peripheral seal portion for sealing the periphery of the second conductor inserted therethrough.

Abstract: [Object] To provide a scroll compressor capable of improving compression efficiency. [Means of Solution] In a scroll compressor 1, a fixed scroll 16 includes a fixed base plate 16c, and a fixed spiral wrap 16d integral with the fixed base plate 16c, while a movable scroll 22 includes a movable base plate 22a facing to the fixed base plate 16c and a movable spiral wrap 22b integral with the movable base plate 22a and meshing with the fixed spiral wrap 16d.

Abstract: A motor accommodating chamber accommodates an electric motor such that a rotation axis of the motor is substantially horizontal. The pressure in the motor accommodating chamber is equal to the pressure in a suction chamber. A connecting passage connects a bottom portion of the motor accommodating chamber with the suction chamber. Therefore, mixture of liquids having a lowered insulating property is prevented from staying in a motor accommodating chamber.

Abstract: An electric motor includes a housing and a circular stator. The housing has an inner circumferential surface. The housing also has a first predetermined thermal expansion coefficient. The housing further has an elastic part. The stator core is pressed to an inside of the housing by tight fit. The stator core has an outer circumferential surface. The stator core also has a second predetermined thermal expansion coefficient that is different from the first predetermined thermal expansion coefficient. A void is defined between the inner circumferential surface and the outer circumferential surface so as to prevent the inner and the outer circumferential surfaces from contacting each other in a circular region. When the housing and the stator core expand or shrink so as to tightly fit each other due to a differential between the first and second predetermined thermal expansion coefficients, the elastic part corresponding to the void is elastically deformed.

Abstract: A motor accommodating chamber accommodates an electric motor such that a rotation axis of the motor is substantially horizontal. The pressure in the motor accommodating chamber is equal to the pressure in a suction chamber. A connecting passage connects a bottom portion of the motor accommodating chamber with the suction chamber. Therefore, mixture of liquids having a lowered insulating property is prevented from staying in a motor accommodating chamber.