Title:
かご形回転子および回転電機
Document Type and Number:
Japanese Patent JP5562307
Kind Code:
B2
Abstract:
A squirrel cage rotor includes: a rotor core having a plurality of slots formed in a circumferential direction, each slot extending in an axial direction; a plurality of conductive bars housed within the respective slots of the rotor core and having both ends thereof projecting out from end faces in an axial direction of the rotor core; and a pair of end rings disposed at both ends of the rotor core, each end ring having a plurality of fitting portions into which respective end portions of the conductive bar projecting out from the end faces of the rotor core in the axial direction are fitted. A material of the conductive bar is an aluminum alloy having an aluminum component ratio of 99.00% or more, and a material of the end ring is an aluminum alloy having proof stress higher than that of the material of the conductive bar.
Inventors:
Oshida Manabu
Yukiaki Shimizu
Hiroshi Hamano
Keiji Oda
Yukiaki Shimizu
Hiroshi Hamano
Keiji Oda
Application Number:
JP2011187098A
Publication Date:
July 30, 2014
Filing Date:
August 30, 2011
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
H02K17/16
Domestic Patent References:
| JP4058748A | ||||
| JP2009011067A | ||||
| JP61102158A |
Foreign References:
| WO2002056446A1 |
Attorney, Agent or Firm:
Fuyuki Nagai