Kabushiki Kaisha Toyota Jidoshokki

Tatsuya Ito

Ken Suitou

Tetsuya Yamada

Kazuhiro Kuroki

Masao Iguchi

Takuro Yamashita

Yoshikazu Fukutani

Tomoharu Arai

Jun Yamazaki

Kenji Yokoi

Norimichi Kii

An electric compressor includes an inverter housing accommodating an inverter, a compressor housing accommodating a compression mechanism and an electric motor, and a seal member having an annular shape and interposed between an end surface of a peripheral wall of the compressor housing and an end surface of the inverter housing. The compressor housing has the peripheral wall in which the inverter is disposed. The seal member is retained to the inverter housing by a retaining structure which is disposed inside the peripheral wall of the compressor housing. The retaining structure includes a first projection and a second projection. The first projection is formed on the seal member and projects radially inward. The second projection is formed on the inverter housing. The first projection is located between the second projection and the end surface of the inverter housing so as to restrict movement of the seal member in a direction.

Electric compressor

It is an object of the invention to provide a motor-driven compressor being fixable reliably to a vehicle or the like and being capable of reliably protecting elements accommodated in a housing even upon reception of an external force due to a collision by any possibility. A motor-driven compressor of the invention comprises a compression mechanism for compressing fluid, an electric motor for driving the compression mechanism, a motor drive circuit for driving the electric motor, and a housing. The housing accommodates the compression mechanism, the electric motor, and the motor drive circuit. A cover for protecting the housing from an external force caused by a collision is fixed to the outside of the housing. The cover is arranged via a clearance with respect to the housing, and absorbs the external force applied to the cover by the clearance.

Motor-driven compressor including a protecting cover

A motor-driven compressor includes an electric motor having a stator core, a compression mechanism driven by the electric motor, a motor housing accommodating the electric motor, and a cluster block engaged with the stator core in the motor housing. The stator core of the electric motor and the motor housing are assembled by shrink fit. The cluster block accommodates a connecting terminal for electrical connection between a conductor connected to a motor drive circuit and a lead wire drawn from the electric motor. The cluster block has a terminal hole for receiving the connecting terminal and has an opening that is provided separately from the terminal hole.

Motor-driven compressor and method for manufacturing the same

A motor-driven compressor includes a compression mechanism compressing and discharging fluid, an electric motor driving the compression mechanism, a drive circuit controlling the electric motor, a drive circuit chamber accommodating the drive circuit and a hermetic sealing inspection port that allows the drive circuit chamber to be in communication with the outside thereof. The hermetic sealing inspection port includes a valve opening and closing the hermetic sealing inspection port. The drive circuit chamber can be pressurized or depressurized through the hermetic sealing inspection port. The hermetic sealing inspection is conducted by connecting an outside fluid machine to the hermetic sealing inspection port through a detachable tube. The fluid machine is operated so as to depressurize or pressurize the drive circuit chamber through the hermetic sealing inspection port. The pressure in the drive circuit chamber is measured by a pressure meter provided in the tube.

Motor driven compressor and hermetic sealing inspection method for the same

[Object] To provide a scroll compressor capable of improving compression efficiency. [Means of Solution] In a scroll compressor, a fixed scrollincludes a fixed base plate, and a fixed spiral wrapintegral with the fixed base plate, while a movable scrollincludes a movable base platefacing to the fixed base plateand a movable spiral wrapintegral with the movable base plateand meshing with the fixed spiral wrap. The movable scrollis formed with a supply passage, which is formed by an inflow openingopened to a distal end faceof the movable spiral wrapand communicatable with compression chamber, an outflow openingformed in the movable base plateto communicate with a back pressure chamber, and a communication holecommunicating the inflow openingwith the outflow opening, so as to communicate the compression chamberwith the back pressure chamberby an elastic deformation or displacement in a direction of the orbit axis R of the movable scroll

Scroll compressor with passage in the spiral wrap

In a motor-driven scroll type compressor, a rotary shaft includes a first opening at a position adjacent to a front end of the rotary shaft and facing an inner surface of a bearing for rotatably supporting the front end of the rotary shaft, a second opening at a position adjacent to a rear end of the rotary shaft and communicating with a back pressure chamber provided in front of a movable scroll member in a housing of the compressor, a communication passage interconnecting the first opening and the second opening, and a throttle formed by a clearance between the first opening and the inner surface of the bearing.

Motor-driven scroll type compressor

A scroll type compressor has a fixed scroll member, a movable scroll member, an oil reservoir, a back-pressure chamber, an oil extraction passage, a flow passage, and a partition wall. The back-pressure chamber disposed behind the movable scroll member is in communication with a discharge chamber. The oil extraction passage having a regulating valve or a throttle connects the back-pressure chamber to the oil reservoir. The oil return passage and the flow passage connect the oil reservoir to a suction chamber, respectively. The flow passage introduces excess lubricating oil into the suction chamber when the level of lubricating oil in the oil reservoir becomes higher than a predetermined level. The partition wall disposed between the openings of the oil extraction passage for restricting lubricating oil from the oil extraction passage other than the excess lubricating oil collected in the oil reservoir from flowing to the flow passage.

Growing community of inventors

Aichi-ken, Japan

Tatsuya Ito