Title:
誘導電動機及び密閉型圧縮機
Document Type and Number:
Japanese Patent JP5042365
Kind Code:
B2
Abstract:
An induction motor includes a stator having a winding to be inserted to a plurality of stator slots formed along an inner circumferential edge of a stator iron core; and a rotor placed inside of the stator via a gap, the rotor includes a plurality of double squirrel-cage rotor slots formed along an outer circumferential edge of the rotor iron core and filled with conductive material and at least three air hole parts provided around a rotating shaft hole of the rotor iron core to which the rotating shaft is fitted and having an opening which is open to the rotating shaft hole; and an inner diameter part of the end ring which short circuits both edges of the conductive material filled to the double squirrel-cage rotor slot is placed to be adjacent to the air hole part in at least the end ring of one side.
Inventors:
Hayato Yoshino
Koji Yabe
Kazuhiko Baba
Tomoaki Oikawa
Takahiro Tsutsumi
Fujisue Yoshikazu
Koji Yabe
Kazuhiko Baba
Tomoaki Oikawa
Takahiro Tsutsumi
Fujisue Yoshikazu
Application Number:
JP2010523665A
Publication Date:
October 03, 2012
Filing Date:
August 05, 2008
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02K17/18; F04B39/00; H02K1/32
Domestic Patent References:
| JPH104658A | 1998-01-06 | |||
| JPH08205438A | 1996-08-09 | |||
| JPS63234850A | 1988-09-30 | |||
| JP2003158839A | 2003-05-30 | |||
| JP2004201428A | 2004-07-15 |
Attorney, Agent or Firm:
Shoji Mizoi