Patent ID: 9343940
Filing Date: 2016-05-17
CPC Classification: F04B,H02K

Claim Text:
1. A motor-driven compressor, comprising: a metal housing; a compression portion and an electric motor accommodated in the housing; a metal cover attached to the housing; a motor drive circuit accommodated in an accommodation space defined by the housing and the cover, wherein the motor drive circuit drives the electric motor; the housing including a bottom wall facing the accommodation space, and an annular extension from a whole peripheral circumference of the bottom wall in a direction toward the cover, the annular extension having an opening end; the cover including a lid portion and a cylindrical portion extending from a whole peripheral circumference of the lid portion in a direction toward the housing, the cylindrical portion having an opening end; an elastic sealing member located between the opening end of the annular extension of the housing and the opening end of the cylindrical portion of the cover, so that a first end surface of the elastic sealing member contacts the opening end of the annular extension and a second end surface of the elastic sealing member contacts the opening end of the cylindrical portion; and an extended portion that is provided in at least one of the housing and the cover and extends in a direction toward the other one of the housing and the cover, wherein the extended portion is arranged inside the sealing member and includes an outer peripheral surface, wherein the sealing member is annular and is arranged on the periphery of the extended portion by being elastically deformed radially outward such that the sealing member is in contact with the outer peripheral surface of the extended portion, and wherein a tip end of the extended portion protrudes further toward the other one of the housing and the cover than an end surface of the sealing member that faces the other one of the housing and the cover, and a portion of the outer peripheral surface of the extended portion overlaps with an inner peripheral surface of the other one of the housing and the cover.