Title:
誘導電動機のかご型ロータ
Document Type and Number:
Japanese Patent JP5080664
Kind Code:
B2
Abstract:
A squirrel-cage rotor includes a rotor core formed having a plurality of slots, a plurality of conductor bars inserted into the slots respectively and made of copper or copper alloy, two conductor end rings joined to the plurality of conductor bars on both end faces of the rotor core and made of copper or copper alloy and a reinforcing-member end ring attached to at least one of the conductor end rings and made of material having a specific strength greater than that of either copper or copper alloy. The plurality of conductor bars are arranged so as to extend through the conductor end rings and the reinforcing-member end ring. Consequently, the rotor can be manufactured by any manufacturing method but die-casting. Further, the conductor end rings can be reinforced with an easily-obtainable material and additionally, the junction of conductor end rings can be easily viewed from an outside.
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Inventors:
Takashi Kajiya
Naoshi Maeda
Masamitsu Fukuda
Naoshi Maeda
Masamitsu Fukuda
Application Number:
JP2011037981A
Publication Date:
November 21, 2012
Filing Date:
February 24, 2011
Export Citation:
Assignee:
FANUC Corporation
International Classes:
H02K17/16
Domestic Patent References:
| JP6022515A | ||||
| JP5207714A | ||||
| JP47033605U |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Hirose Shigeki
Ryuichi Nishimura
Kazuo Maejima
Jun Tsuruta
Tetsuro Shimada
Hirose Shigeki
Ryuichi Nishimura
Kazuo Maejima