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Title:
SINGLE-PHASE ELECTRIC MOTOR AND CLOSED COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2006/098065
Kind Code:
A1
Abstract:
A high-efficient and inexpensive single-phase electric motor and a closed compressor using it is produced by ensuring a magnetic path of a stator iron core back and forming such a shape that the material scribing is preferable. The single-phase electric motor comprises a stator having an iron core formed of a laminate of electrical steel sheets and provided with slots and a single-phase two-pole distributed winding composed of main and auxiliary windings provided in the slots and a rotor disposed along the inner circumference surface of the stator with an air gap therebetween. The single-phase electric motor is characterized in that five or more generally linear cuts are made in the outer circumference portion of the stator iron core and a rectangle with straight lines including four cuts among the five or more cuts is formed.

Inventors:
YOSHINO HAYATO (JP)
TAKITA YOSHIO (JP)
YABE KOJI (JP)
KAZAMA OSAMU (JP)
Application Number:
PCT/JP2005/022684
Publication Date:
September 21, 2006
Filing Date:
December 09, 2005
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
YOSHINO HAYATO (JP)
TAKITA YOSHIO (JP)
YABE KOJI (JP)
KAZAMA OSAMU (JP)
International Classes:
H02K1/16; H02K1/20; H02K17/08; H02K19/06
Foreign References:
JPH11125183A1999-05-11
JP2004141000A2004-05-13
JPS61443U1986-01-06
JP2005006416A2005-01-06
JP2002223540A2002-08-09
JPH11252841A1999-09-17
JP2001268824A2001-09-28
Attorney, Agent or Firm:
Mizoi, Shoji (Ofuna Building 3rd floor, 17-10, Ofuna 2-chom, Kamakura-shi Kanagawa 56, JP)
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