Mitsubishi Electric Corporation

Atsushi Takechi

Masahiko Fujita

Hitoshi Isoda

Masaki Kato

Masao Kikuchi

Dai Nakajima

An object of the present invention is to provide an electrical rotating machine that prevents heat generated from a stator winding from being transmitted to an inverter circuit. A rotor having a field winding, and a stator having a stator winding arranged so as to surround the rotor are provided. One end of a rear bracket is connected to the stator, and arranged inside the rear bracket is a heat sink assembly including a heat sink having switching elements for controlling the field winding and the stator winding mounted thereto. The heat sink assembly is fixed to protruding portions protruding from an end surface of the rear bracket.

Electrical rotating machine with improved heat sink cooling

A dynamoelectric machine main body that includes: a housing that is constituted by a rear bracket and a front bracket; a rotor; a stator; and a fan, and a power supply unit that is mounted integrally onto the dynamoelectric machine main body are included, the power supply unit is disposed between the fan and a bottom portion of the rear bracket, and the power supply unit is disposed between the fan and a bottom portion of the rear bracket, and the rear bracket has: air discharge ports that are formed on portions that are positioned radially outside the fan; and air suction ports that have openings nearer to a bottom portion than the power supply unit, and includes a partitioning member for configuring a ventilation channel that extends from the air suction ports to the air discharge ports that is disposed between the power supply unit and the fan.

Power supply unit-integrated dynamoelectric machine

There is obtained a controller-integrated electric rotating machine that is superior in terms of a cooling effect. In a controller-integrated electric rotating machine provided with a statorconfigured with an iron coreB and a stator windingA, a rotorhaving a cooling fan, an inverter power circuitthat is a control apparatus for applying a stator current to the stator windingA, and a bus barthat supplies the inverter power circuitwith electric power from a battery, the inverter power circuitincludes a power modulethat has a function of switching the stator current, a heat sinkon which the power moduleis mounted by the intermediary of an insulating layer, and an insulator casethat incorporates the power moduleand holds respective terminals of the power module; and the bus baris connected with terminals, andof the inverter power circuitand has a cooling fin

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Chiyoda-ku, Japan

Atsushi Takechi