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Patent Searching and Data


Title:
PERMANENT MAGNET EMBEDDED ELECTRIC MOTOR AND COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2016/027338
Kind Code:
A1
Abstract:
A permanent magnet embedded electric motor is equipped with: a stator iron core; a rotor iron core (5) disposed on the inner diameter side of the stator iron core and having a plurality of magnet insertion holes (9) corresponding to the number of magnetic poles; and a plurality of permanent magnets (7a, 7b, 7c, 7d) disposed in a rotational direction of the magnet insertion holes (9). A gap (101, 102, 103) between adjacent two permanent magnets among the plurality of permanent magnets (7a, 7b, 7c, 7d) disposed in the magnet insertion holes (9) is formed such that a gap (A101, A102, A103) on the radial outer side is larger than a gap (B101, B102, B103) on the radial inner side.

Inventors:
OKETANI NAOHIRO (JP)
Application Number:
PCT/JP2014/071845
Publication Date:
February 25, 2016
Filing Date:
August 21, 2014
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/27
Foreign References:
JP2011015499A2011-01-20
US6847144B12005-01-25
JP2003164085A2003-06-06
JP2010284062A2010-12-16
JP2012213310A2012-11-01
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
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