Electric compressor

Abstract

The present invention provides an electric compressor which enables prescribed insulation performance to be ensured even if poly alkyl glycol type lubricating oils are used. The electric compressor is provided with an insulating cover which is provided so as to cover a connection section between a terminal body and a lead wire on the motor side, and on a surface on the side of a first insulating member of the insulating cover, there is provided a cutoff section which cuts off a leakage path by abutting against the first insulating member, whereby the leakage path between the first insulating member and the insulating cover is cut off.

1 . An electric compressor comprising:
 a compression section for compressing a cooling medium; a motor for driving the compression section;   a motor driving circuit for driving the motor;   a sealed terminal which is provided in a partition wall for partitioning a space on the motor side and a space on the motor driving circuit side and is intended for electrically connecting a lead wire on the motor side and a lead wire on the motor driving circuit side; and   an insulating cover provided so as to cover a connection section between the sealed terminal and the lead wire on the motor side,   wherein the insulating cover has a cutoff section which is provided on a surface on the partition wall side and cuts off a leakage path by abutting against a member on the partition wall side.   
     
     
         2 . The electric compressor according to  claim 1 , further comprising air vent portions to vent the air in a space formed between the insulating cover and the member on the partition wall side. 
     
     
         3 . The electric compressor according to  claim 2 , wherein the air vent portions are provided in the cutoff section and comprise an opening which is intended for providing communication between a space which is formed between the insulating cover and the member on the partition wall side and a space on the motor side, and
 wherein the opening has an opening area which is not more than 10 square millimeters.   
     
     
         4 . The electric compressor according to anyone of  claims 1  to  3 , wherein the insulating cover is provided integrally with a plurality of sealed terminals.