摘要:
Disclosed is a drive circuit-integrated electric compressor, which is adapted to cool a power semiconductor element in a motor drive circuit with good efficiency without increasing the temperature of sucked refrigerant gas and while suppressing increase in pressure loss in a path for cooling. Specifically disclosed is a drive circuit-integrated electric compressor into which a motor drive circuit having a power semiconductor element is incorporated integrally, characterized in that the electric compressor is configured so that the power semiconductor element in the drive circuit is cooled by refrigerant gas to be discharged.
摘要:
An electric compressor integral with a drive circuit incorporates a compression mechanism section, a motor for driving the compression mechanism section, and a motor drive circuit. A refrigerant gas chamber having a refrigerant gas expansion space, into which refrigerant gas is introduced, is formed between a drive circuit installation section and a motor installation section, by a first partition wall provided on the drive circuit side and a second partition wall provided on the motor side, the side opposite the drive circuit side. The refrigerant gas chamber is interrupted by the first partition wall against the drive circuit installation section and is communicated with the motor installation section by a through hole that is provided in the second partition wall and through which the refrigerant gas can pass. Heat generating components, particularly in the drive circuit, can be easily and effectively cooled, and also on the motor installation side, cooling of the motor and lubrication of a bearing section can be easily and excellently performed.
摘要:
Disclosed are a shield structural body, a connector assembly and connector structural body using the shield structural body, a casing assembly having the connector assembly, and an electric compressor having the casing assembly. The shield structural body is formed of an electrically conductive material and has a tube section, a ground electrode terminal formed electrically integrally with the tube section, claw sections integrally formed with the tube section, projected at least either radially outward or inward from the tube section, and engageable with a shield structural body holding member. The shield structural body can be produced at low cost, the connector assembly can provide high productivity and can be produced at low cost, the connector structural body is highly reliable, the casing assembly using the connector assembly is highly versatile, and the electric compressor having the casing assembly can easily cope with model changes.