Rotor for electric rotating machine and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-8970085-B2
Application number	US-201213435786-A
Country	US
Kind code	B2
Filing date	Mar 30, 2012
Priority date	Apr 1, 2011
Publication date	Mar 3, 2015
Grant date	Mar 3, 2015

Abstract

A rotor includes a rotor core comprised of magnetic steel sheets laminated in the axial direction and a pair of end plates that are respectively provided on the axial end faces of the rotor core so as to together sandwich the rotor core in the axial direction. The rotor is rotatably disposed in an electric rotating machine with a circumferential surface of the rotor core facing a stator. At least one of the end plates is configured to have through-holes, each of which is formed so as to axially penetrate the end plate, and a pressing portion that is radially positioned on the stator side of the through-holes. The pressing portion abuts a corresponding one of the axial end faces of the rotor core and exerts an axial load on the corresponding axial end face of the rotor core by an elastic force of the end plate.

First claim

What is claimed is:

1. A rotor for an electric rotating machine, comprising:
a rotor core comprised of a plurality of substantially annular magnetic steel sheets that are laminated in an axial direction of the rotor core, the rotor core having an opposite pair of axial end faces and a circumferential surface that extends in a circumferential direction of the rotor core and connects the axial end faces of the rotor core in the axial direction;
a pair of end plates that are respec…

Assignees

• Takahashi Yuki
• Itou Kazuteru
• Itou Yuuichirou
• Denso Corp

Inventors

• Takahashi Yuki
• Itou Kazuteru
• Itou Yuuichirou

Classifications

• H02K2213/03

  Electricity · mapped topic

• Y10T29/49012

  Cross-Sectional Technologies · mapped topic

• H02K1/32

  Electricity · mapped topic

• H02K1/276 Primary

  Electricity · mapped topic