PERMANENT MAGNET ELECTRIC MOTOR, DRIVING METHOD AND PRODUCING METHOD OF THE MOTOR, REFRIGERANT COMPRESSOR, AND BLOWER

Title:

PERMANENT MAGNET ELECTRIC MOTOR, DRIVING METHOD AND PRODUCING METHOD OF THE MOTOR, REFRIGERANT COMPRESSOR, AND BLOWER

Document Type and Number:

WIPO Patent Application WO/2005/088806

Kind Code:

A1

Abstract:

A technique effectively using the magnetic flux of a permanent magnet, contributing to a cost reduction. Permanent magnets (14a, 14b) are arranged away from a magnetic barrier (19). Between the permanent magnets (14a, 14b) and the magnetic barrier (19) are individually exposed body sections (10a, 10b) in a manner facing a stator. A pair of third magnetic pole surfaces (13aS1, 13aS2) is produced on the body section (10a) between the permanent magnet (14a) and the magnetic barrier (19). The pair of third magnetic pole surfaces (13aS1, 13aS2) is produced by the magnetic flux produced from a second magnetic pole surface (14aS) of the permanent magnet (14a), the third magnetic pole surfaces (13aS1, 13aS2) having the S polarity and facing the stator (2) from both sides of a first magnetic pole surface (14aN). Similarly, a pair of third magnetic pole surfaces (13bN1, 13bN2) is produced by the magnetic flux produced from a second magnetic pole surface (14bN) of the permanent magnet (14b), the third magnetic pole surfaces (13bN1, 13bN2) having the N polarity and facing the stator (2) from both sides of the first magnetic pole surface (14bS).

Inventors:

ASANO YOSHINARI (JP)
YAMAGIWA AKIO (JP)

Application Number:

PCT/JP2005/004096

Publication Date:

September 22, 2005

Filing Date:

March 09, 2005

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
ASANO YOSHINARI (JP)
YAMAGIWA AKIO (JP)

International Classes:

F25B1/04; H02K1/22; H02K1/24; H02K1/27; H02K1/28; H02K3/18; H02K3/28; H02K15/085; H02K15/095; H02K21/14; H02K21/16; H02P6/10; (IPC1-7): H02K1/27; H02K1/22; H02K1/24; H02K1/28; H02K3/18; H02K3/28; H02K15/085; H02K15/095; H02K21/14; H02P6/08; H02P6/10

Foreign References:

JP2000245087A	2000-09-08
JPH1080079A	1998-03-24
JPS5622945U	1981-02-28
JP2001061245A	2001-03-06
JPH0543748U	1993-06-11
JP2537636B2	1996-09-25
JP2002142416A	2002-05-17
JP2000175417A	2000-06-23
JPH06339240A	1994-12-06

Attorney, Agent or Firm:

Yoshida, Shigeaki (Sumitomo-seimei OBP Plaza bldg., 4-70, Shiromi 1-chome, Chuo-k, Osaka-shi Osaka 01, JP)

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