Motor driven compressor

A motor-driven compressor comprising:

• a metal housing accommodating a compression unit and an electric motor;
• a cover coupled to the housing, wherein the cover includes a resin portion and a metal shield, and the shield blocks electromagnetic noise;
• a bolt that couples the cover to the housing, wherein
• the housing and the cover define an accommodating chamber that accommodates a motor driving circuit that drives the electric motor,
• the cover includes an insertion hole into which the bolt is insertable,
• the shield includes a seat that surrounds the insertion hole and is held between the bolt and the housing,
• the cover is configured to allow for an axial force of the bolt to be applied to the seat and not to the resin portion,
• the insertion hole includes a first insertion hole, which is formed in the shield, and a second insertion hole, which is formed in the resin portion,
• the bolt includes a shaft, which is inserted into the first insertion hole, a large diameter portion, which is arranged in the second insertion hole and has a larger outer diameter than the shaft, and a head,
• the shaft and the head are located at opposite sides of the large diameter portion,
• the bolt includes a first step, which is located between the shaft and the large diameter portion, and a second step, which is located between the large diameter portion and the head, and
• the first step is in contact with the seat;
• and
• an annular second sealing member arranged in the second insertion hole around the large diameter portion.

A motor-driven compressor comprising:

• a metal housing accommodating a compression unit and an electric motor;
• a cover coupled to the housing, wherein the cover includes a resin portion and a metal shield, and the shield blocks electromagnetic noise;
• and
• a bolt that couples the cover to the housing, wherein
• the housing and the cover define an accommodating chamber that accommodates a motor driving circuit that drives the electric motor,
• the cover includes an insertion hole into which the bolt is insertable,
• the shield includes a seat that surrounds the insertion hole and is held between the bolt and the housing,
• the cover is configured to allow for an axial force of the bolt to be applied to the seat and not to the resin portion, and
• a surface of the seat is in direct contact with the housing.