Abstract: An electric compressor includes a compression mechanism that compresses refrigerant, an electric motor that drives the compression mechanism, a drive circuit that drives the electric motor, a housing that forms therein a motor chamber in which the electric motor is accommodated, a cover that is attached to the housing, a rotary shaft, and a relay terminal portion. The cover is configured to cooperate with the housing to form a drive circuit chamber in which the drive circuit is accommodated. Rotation of the electric motor is transmitted to the compression mechanism through the rotary shaft. The relay terminal portion provides electrical connection between a wire of the drive circuit and a wire of the electric motor. The housing includes a partition wall that separates the motor chamber and the drive circuit chamber from each other. The relay terminal portion is disposed between the partition wall and the rotary shaft.

Abstract: In a compressor, a gasket includes a plurality of slits that are arranged at intervals so as to extend along a peripheral edge of the gasket and a plurality of interval portions that are located between the slits. A first housing member has an end face that faces the gasket, and a plurality of grooves is formed in the end face at positions corresponding to the interval portions such that each groove faces its corresponding interval portion. In a state in which the first housing member and a second housing member are connected to each other with the gasket interposed therebetween, the plurality of slits communicate with each other via the grooves to thereby form part of an oil passage through which lubricant oil in the oil reservoir portion flows to a refrigerant compressor, and the slits form throttles of the oil passage.

Abstract: A vane compressor includes a housing having therein a suction chamber, a discharge chamber having a cover, and a rotor chamber, a rotor having therein a plurality of vane slots, and a plurality of vanes. The housing includes a partition that has a first surface forming the other surface of the rotor chamber and a second surface and separates the rotor chamber from the discharge chamber. An intermediate pressure chamber having a pressure that is lower than the discharge chamber and higher than the suction chamber is formed between the partition and the cover. A part of the second surface and a part of a covering surface of the discharge chamber cover are spaced away from each other by the intermediate pressure chamber. The intermediate pressure chamber is disposed so as to overlap at least a part of the other surface of the rotor chamber.

Abstract: In a vane compressor, a transmission pin is accommodated in a communication hole that provides communication between a first vane slot and a second vane slot. The transmission pin includes a loose-fit portion that is loosely inserted in a recessed portion formed in a bottom surface of each of first and second vanes, a shaft portion, and a flange portion formed between the loose-fit portion and the shaft portion and in contact with the bottom surface. A coil spring is disposed in the communication hole to urge the first vane and the second vane in opposite directions away from each other via the flange portion. The coil spring is disposed around the shaft portion and supported by the flange portion so as to urge and support the transmission pin.

Abstract: A compressor according to the present invention includes an oil separation mechanism and an oil supply mechanism. The oil separation mechanism includes an oil separation chamber and an oil drain path. The oil supply mechanism includes an oil supply port. The oil drain path includes a first flow path formed by penetrating a second partition of a housing and configured to open toward a first partition of a housing from the oil separation chamber, and a second flow path recessed in at least one of the first partition and the second partition and formed by the cooperation of the first partition and the second partition so as to get communicated with the first flow path. An outlet of the second flow path is located at a higher level in a vertical direction than an inlet of the second flow path while avoiding a direction facing the oil supply port.

Abstract: An electric compressor includes a compression mechanism that compresses refrigerant, an electric motor that drives the compression mechanism, a drive circuit that drives the electric motor, a housing that forms therein a motor chamber in which the electric motor is accommodated, a cover that is attached to the housing, a rotary shaft, and a relay terminal portion. The cover is configured to cooperate with the housing to form a drive circuit chamber in which the drive circuit is accommodated. Rotation of the electric motor is transmitted to the compression mechanism through the rotary shaft. The relay terminal portion provides electrical connection between a wire of the drive circuit and a wire of the electric motor. The housing includes a partition wall that separates the motor chamber and the drive circuit chamber from each other. The relay terminal portion is disposed between the partition wall and the rotary shaft.

Abstract: A compressor includes a discharge housing member, which includes a discharge chamber and an oil separation chamber. The discharge housing member includes a cylindrical wall defining the discharge chamber and the oil separation chamber. The discharge chamber includes a partition that is continuous with and protrudes from the cylindrical wall. The cylindrical wall extends from an upper section of the discharge chamber toward a lower section of the discharge chamber. The cylindrical wall includes a communication hole connecting the discharge chamber to the oil separation chamber. The partition extends from the upper section of the discharge chamber toward the lower section of the discharge chamber and defines a first space and a second space in the discharge chamber. The first space and the second space are connected to each other at least at the lower section of the discharge chamber through a clearance between the partition and the circumferential wall.

Abstract: A vane compressor includes a housing having therein a suction chamber, a discharge chamber having a cover, and a rotor chamber, a rotor having therein a plurality of vane slots, and a plurality of vanes. The housing includes a partition that has a first surface forming the other surface of the rotor chamber and a second surface and separates the rotor chamber from the discharge chamber. An intermediate pressure chamber having a pressure that is lower than the discharge chamber and higher than the suction chamber is formed between the partition and the cover. A part of the second surface and a part of a covering surface of the discharge chamber cover are spaced away from each other by the intermediate pressure chamber. The intermediate pressure chamber is disposed so as to overlap at least a part of the other surface of the rotor chamber.

Abstract: In a vane compressor, a transmission pin is accommodated in a communication hole that provides communication between a first vane slot and a second vane slot. The transmission pin includes a loose-fit portion that is loosely inserted in a recessed portion formed in a bottom surface of each of first and second vanes, a shaft portion, and a flange portion formed between the loose-fit portion and the shaft portion and in contact with the bottom surface. A coil spring is disposed in the communication hole to urge the first vane and the second vane in opposite directions away from each other via the flange portion. The coil spring is disposed around the shaft portion and supported by the flange portion so as to urge and support the transmission pin.

Abstract: A compressor includes a discharge housing member, which includes a discharge chamber and an oil separation chamber. The discharge housing member includes a cylindrical wall defining the discharge chamber and the oil separation chamber. The discharge chamber includes a partition that is continuous with and protrudes from the cylindrical wall. The cylindrical wall extends from an upper section of the discharge chamber toward a lower section of the discharge chamber. The cylindrical wall includes a communication hole connecting the discharge chamber to the oil separation chamber. The partition extends from the upper section of the discharge chamber toward the lower section of the discharge chamber and defines a first space and a second space in the discharge chamber. The first space and the second space are connected to each other at least at the lower section of the discharge chamber through a clearance between the partition and the circumferential wall.