Controller-integrated rotating electrical machine

Patent metadata

Field	Value
Publication number	US-8970076-B2
Application number	US-201213668498-A
Country	US
Kind code	B2
Filing date	Nov 5, 2012
Priority date	Jun 5, 2012
Publication date	Mar 3, 2015
Grant date	Mar 3, 2015

Abstract

A first cooling air passage is formed to let first cooling air generated by a cooling fan in from a radially outside of an inverter apparatus to cool a heat sink and out through exhaust holes provided on an outer peripheral side of a rear bracket by passing an inner periphery of the rear bracket. Also, a second cooling air passage is formed to let second cooling air generated by the cooling fan into a hollow portion of the inverter apparatus from an axially rear of a rotation shaft to cool a brush holder and a magnetic pole position detection sensor and out through the exhaust holes by passing the inner periphery of the rear bracket. Hence, cooling performance for the magnetic pole position detection sensor and the brush holder may be enhanced and an axial dimension may be reduced.

First claim

What is claimed is:

1. A controller-integrated rotating electrical machine, comprising:
a stator and a rotor supported on a front bracket and a rear bracket, said rotor having field windings that generate a magnetomotive force and a cooling fan that generates cooling air on a rotation shaft supported in a rotatable manner on a front bearing and a rear bearing provided on the front bracket and the rear bracket, respectively;
a magnetic pole position detection sensor detecting a m…

Assignees

• Mitsubishi Electric Corp

Inventors

• Isoda Hitoshi
• Utsumi Yoshinobu
• Fujita Masahiko

Classifications

• H02K11/05

  Electricity · mapped topic

• H02K11/33

  Electricity · mapped topic

• H02K9/04

  Electricity · mapped topic

• H02K11/30

  Electricity · mapped topic

• H02K9/06 Primary

  Electricity · mapped topic