Vehicle-mounted electronic control unit and vehicle-mounted mechanically/electrically integrated electric motor

Patent metadata

Field	Value
Publication number	US-2016347353-A1
Application number	US-201515116526-A
Country	US
Kind code	A1
Filing date	Feb 5, 2015
Priority date	Feb 5, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

[Problem to be Solved]
To provide a vehicle-mounted electronic control unit or a vehicle-mounted mechanically/electrically integrated electric motor, the vehicle-mounted electronic control unit or the vehicle-mounted mechanically/electrically integrated electric motor having high heat radiation efficiency and being small in size.
[Solution]
A vehicle-mounted electronic control unit includes a motor case 430 capable of accommodating an electric motor 43 , a lid body 431 of the motor case 430 , a power section 100 including switching circuits FET 1 to FET 6 that supply driving signals to the electric motor 43 , and a control section 300 including a control circuit that controls the switching circuits FET 1 to FET 6 . The case 430 further accommodates the power section 100 and the control section 300 . The lower surface of the lid body 431 is set in contact with the power section 100 . Each of the case 430 and the lid body 431 has a heat radiation property. The upper surface of the lid body 431 is exposed. A vehicle-mounted mechanically/electrically integrated electric motor includes the vehicle-mounted electronic control unit and the electric motor 43.

First claim

1 . A vehicle-mounted electronic control unit that drives and controls an electric motor, the vehicle-mounted electronic control unit comprising:
a case including an ECU housing section; a lid body that covers an upper part of the ECU housing section; a power section including a switching circuit that supplies a driving signal to the electric motor and a power board on which the switching circuit is mounted; and a control section including a control circuit that controls the switching circuit, wherein the lid body is a material having a heat radiation property higher than the heat radiation property of the power section, the ECU housing section accommodates the power section and the control section, a lower surface of the lid body is in contact with an upper surface of the power section, and an upper surface of the lid body is exposed.

2 - 20 . (canceled)

Assignees

• Nidec Elesys Corp

Inventors

• Wada Eiji
• Harada Kazuki
• Kuroyanagi Hitoshi

Classifications

• B60T8/4022

  Pump units driven by an individual electric motor (B60T8/4027 takes precedence) · CPC title

• B60T8/48

  connecting the brake actuator to an alternative or additional source of fluid pressure {, e.g. traction control systems} · CPC title

• H02K11/215

  Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements · CPC title

• H02P6/16

  Circuit arrangements for detecting position · CPC title

• B62D5/0406 Primary

  including housing for electronic control unit · CPC title