Motor-driven compressors
AssigneeSanden Corporation
InventorsSatoru Saito, Shinichi Ohtake
Life of this patent
Estimating the term…
Abstract
A motor-driven compressor is formed integrally with a compressor device for compressing refrigerant and a motor for driving the compressor device. The motor-driven compressor includes a drive circuit and a plurality of cooling fins. The drive circuit controls the operation of the motor. The drive circuit is provided on an outer surface of a wall of a refrigerant suction route. The plurality of cooling fins are formed on an inner surface of the wall of the refrigerant suction route. In such motor-driven compressors, the drive circuit may be sufficiently cooled without using cooling devices. As a result, providing cooling devices with the drive circuit in motor-driven compressors is no longer necessary.
Claims5
A motor-driven compressor formed integrally with a compressor device for compressing refrigerant and a motor, said motor-driven compressor comprising:
- a drive circuit for controlling the operation of said motor, said drive circuit provided on an outer side of a wall of a refrigerant suction passage;
- and
- a plurality of cooling fins formed on an inner side of said wall of said refrigerant suction passage.
A motor-driven compressor formed integrally with a compressor device for compressing refrigerant and a motor, said motor-driven compressor comprising:
- a drive circuit for controlling the operation of said motor, said drive circuit attached on an outer surface of a wall of a refrigerant suction passage;
- and
- a refrigerant flow path adjacent to an inner surface of said wall opposite the attachment between of said driving circuit and said inner surface of the wall.
A motor-driven compressor formed integrally with a compressor device for compressing refrigerant and a motor, said motor-driven compressor comprising:
- a drive circuit for the operation of said motor, said drive circuit provided on an outer surface of a wall of a refrigerant suction passage;
- and
- a plurality of ribs for reinforcing an annular boss, which supports one end of a drive shaft, provided on an inner surface of said wall of an attachment portion of said drive shaft.
Dependencies are inferred from the claim text.