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Patent Searching and Data


Title:
ELECTRIC MOTOR WITH EMBEDDED PERMANENT MAGNET, COMPRESSOR, AND REFRIGERATION/AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/045026
Kind Code:
A1
Abstract:
This electric motor (1) with an embedded permanent magnet has at least one magnetic pole center slit (81a) and a plurality of side slits (81b) formed between a rotor outer peripheral surface (25) of a rotor (5) and an insertion hole outer surface (55) at the outside in the radial direction of a magnet insertion hole (21); each of the two sides in the widthwise direction of the magnetic pole center slit is provided with at least one of the plurality of side slits; the surface area of the magnetic pole center slit is smaller than the surface area of each of the plurality of side slits, and the width of each of the plurality of side slits is greater than the gap between adjacent slits.

Inventors:
BABA KAZUHIKO (JP)
NIGO MASAHIRO (JP)
TSUCHIDA KAZUCHIKA (JP)
ISHIKAWA ATSUSHI (JP)
Application Number:
PCT/JP2013/075848
Publication Date:
April 02, 2015
Filing Date:
September 25, 2013
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/22
Foreign References:
JPH11187597A1999-07-09
JP2002044920A2002-02-08
JP2012105410A2012-05-31
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)
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