Patent ID: 9068563
Filing Date: 2015-06-30
Classification: F04B,F04C,F04D

Abstract:
1. A motor-driven compressor comprising: a housing; a partition defining inside the housing a first area and a second area, which are isolated from each other; a compressing portion and an electric motor accommodated in the first area, wherein the electric motor is a drive source of the compressing portion; a drive circuit for driving the electric motor, the drive circuit being arranged in the second area so as to have dissipation of the drive circuit; a conductive member, which is electrically connected to the drive circuit and is fixed to the partition; and an electrical connection portion, which electrically connects the conductive member and the electric motor to each other, and comprising a cluster block, wherein a part of the electrical connection portion is located in a passing area formed between the housing and the electric motor, the cluster block including a connection terminal connected to the end of a lead wire, wherein a clearance is provided between an outer surface of the cluster block and an inner surface of the housing where the passing area is located, the housing has a suction port and a discharge port, the discharge port being located at a position that is farther from the partition than the suction port and the passing area, and an insertion member located in the passing area, wherein, after refrigerant is drawn into the housing via the suction port, the insertion member is configured to increase flow of refrigerant toward the partition by restricting flow of refrigerant toward the discharge port via the passing area, and wherein an outer surface of the insertion member contacts the inner surface of the housing where the passing area is located, wherein the cluster block is provided in the passing area and attached to an outer circumferential surface of a stator core of the electric motor, wherein the stator core is configured to be fitted in the housing by shrink fitting in a state that the cluster block is in the passing area and attached to the outer circumferential surface of the stator core of the electric motor, and wherein the insertion member is configured to be inserted into the passing area when the stator core is in the housing.