| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve cooling performance of a drive circuit 35 in an electric compressor 1. Ž<P>SOLUTION: In the electric compressor 1, a coolant passage 120 is provided between a bottom part 5d of a housing body 5a and a cooling plate 37 for coolant taken in from a coolant inlet 1a to pass to flow toward a compression mechanism 20. Though a switching element 35b of a drive circuit 35 of an inverter circuit 20 generates heat, coolant flowing in the coolant passage 120 cools a switching element 35b through the cooling plate 37. Due to the coolant passage 120, flow speed of coolant is improved, so that heat exchange between the coolant and the drive circuit 35 is sufficiently conducted, thereby cooling performance of the drive circuit 35 is improved. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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