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US 7,147,443 B2Granted
Electric compressor
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsNobuaki Ogawa, Masahiko Makino, Yukihiro Fujiwara
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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsNobuaki Ogawa, Masahiko Makino, Yukihiro Fujiwara
Estimating the term…
It is an object of the present invention to provide an electric compressor capable of enhancing the mountability with respect to a vehicle without increasing the compressor in size when the electric compressor and a motor-driving circuit which drives a motor of the electric compressor are integrally formed together. A suction chamber 61 which is in communication with a fixed panel suction port 16 provided in a fixed scroll 11 from a suction port 8 provided in a sub-casing 102, and a discharge chamber 62 which is in communication with a communication passage 63 from a fixed panel discharge port 31 provided in the fixed scroll 11 are disposed on the same plane in a radial direction of a compressor, and the motor-driving circuit 101 is disposed in an axial direction of the compressor so that an IPM 105 which is a heat generating part of the circuit substrate 103 can be brought into tight contact with the suction chamber 61.
An electric compressor in which a compression mechanism which compresses and discharges a refrigerant sucked into a compression chamber, a motor which drives said compression mechanism, and a motor-driving circuit which drives said motor are integrally formed together, wherein a suction chamber which introduces a refrigerant from a suction port into said compression chamber, and a discharge chamber which introduces refrigerant discharged from said compression chamber into a discharge port are formed on the same plane in a radial direction of said compressor relative to the rotational axis of the compressor, a heat generating part of said motor-driving circuit is cooled by the refrigerant in said suction chamber.
Dependencies are inferred from the claim text.