초록 ▼

A motor-driven compressor includes a compression mechanism, an electric motor, a compressor housing, a conductive member, a terminal base, an insulating member, a connection terminal, a wire assembly, a terminal housing, first and second holes formed through the terminal housing and first and second

A motor-driven compressor includes a compression mechanism, an electric motor, a compressor housing, a conductive member, a terminal base, an insulating member, a connection terminal, a wire assembly, a terminal housing, first and second holes formed through the terminal housing and first and second seal members. The conductive member extends from the inside to the outside of the compressor housing and connected electrically to the connection terminal at a terminal connection. The wire assembly has a core wire connecting electrically between the connecting terminal and the electric motor, and an insulator covering the core wire. The terminal housing disposed in the compressor housing covers the terminal connection. The wire assembly has an insulating tube covering the insulator, wherein both ends of the insulating tube are opened for communicating with the inside and the outside of the terminal housing through a clearance formed between the insulating tube and the insulator.

대표청구항 ▼

1. A motor-driven compressor comprising: a compression mechanism compressing and discharging refrigerant gas;an electric motor driving the compression mechanism;a compressor housing made of a metal, the compressor housing accommodating the compression mechanism and the electric motor, the compressor

1. A motor-driven compressor comprising: a compression mechanism compressing and discharging refrigerant gas;an electric motor driving the compression mechanism;a compressor housing made of a metal, the compressor housing accommodating the compression mechanism and the electric motor, the compressor housing through which a hole is formed;a conductive member extending from the inside to the outside of the compressor housing through the hole;a terminal base disposed at the hole of the compressor housing;an insulating member insulating the conductive member from the terminal base;a connection terminal connected electrically to the conductive member at a terminal connection;a terminal housing made of an insulating material, covering the terminal connection and disposed in the compressor housing;a wire assembly having a core wire connecting electrically between the connecting terminal and the electric motor, an insulator covering the core wire and an insulating tube covering the insulator, wherein both ends of the insulating tube are opened for communicating with the inside and the outside of the terminal housing through a clearance being formed between the insulating tube and the insulator;a first hole is formed through the terminal housing and the conductive member is inserted through the first hole;a second hole is formed through the terminal housing and the wire assembly is inserted through the second hole;a first seal member disposed between the insulating member and the first hole; anda second seal member set in close contact with the terminal housing and the insulating tube. 2. The motor-driven compressor according to claim 1, wherein the terminal housing has a hole forming portion in which the second hole is formed, the second seal member is a heat-shrinkable tube covering the outer peripheral surface of the hole forming portion and the outer peripheral surface of the insulating tube in sealed contact with the respective surfaces, and wherein shrinking the heat-shrinkable tube by heat reduces the diameter of the insulating tube. 3. The motor-driven compressor according to claim 1, wherein the insulating tube is made of an insulating fluorocarbon resin. 4. The motor-driven compressor according to claim 1, wherein the terminal housing is a cluster housing covering a plurality of the terminal connections. 5. The motor-driven compressor according to claim 4, wherein the motor-driven compressor has a plurality of the wire assemblies extending from the electric motor and a plurality of the second holes for inserting the wire assemblies through the second holes respectively, and the second seal member is a grommet which seals between a plurality of the insulating tubes of the wire assemblies and the second holes. 6. The motor-driven compressor according to claim 1, wherein the clearance is formed on the path of shortest insulating distance between the compressor housing and any one of the conductive member in the terminal housing, the core wire and the terminal connection. 7. The motor-driven compressor according to claim 1, wherein the inside of the terminal housing does not communicate with the outside of the terminal housing except for through the clearance. 8. The motor-driven compressor according to claim 1, wherein the compressor housing includes a first housing, and the hole is formed through the front end wall of the first housing or the peripheral wall of the first housing.