Title:
MOTOR AND WASHING MACHINE
Document Type and Number:
WIPO Patent Application WO/2015/064086
Kind Code:
A1
Abstract:
Provided are a motor and a washing machine using the motor. The motor (4) includes a magnet consisting of a sintering body of magnetic powder and the direction of easy magnetization of the magnet is formed by sequentially changing the angle. A first magnet (14), the magnetic distribution of which is oriented from a circumferential direction end portion (141) to a facing surface portion (142), and a second magnet (15), the magnetic distribution of which is oriented from the center of a facing surface portion (152) to a circumferential direction end portion (151), are alternately arranged in a ring shape, said circumferential direction end portion (141) being a region facing an adjacent magnet, said facing surface portion (142) being a region lying at the center of the magnet and facing a stator (7). The first and second magnets are formed such that the curvature radius (R2) of the magnetic distribution generated on the stator side is smaller than the curvature radius (R1) of a surface of the magnet, said surface lying on the side facing the stator.
Inventors:
MORIYAMA KEIICHI
SHIGA TSUYOSHI
SHIGA TSUYOSHI
Application Number:
PCT/JP2014/005443
Publication Date:
May 07, 2015
Filing Date:
October 28, 2014
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORP (JP)
TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORP (JP)
International Classes:
H02K1/22; D06F37/30; H02K1/27; H02K21/22
Foreign References:
| JP2013090443A | 2013-05-13 | |||
| JP2013106499A | 2013-05-30 | |||
| JP2001169485A | 2001-06-22 | |||
| JP2010130719A | 2010-06-10 | |||
| JP2012005169A | 2012-01-05 | |||
| JP2014110760A | 2014-06-12 | |||
| JP2009247041A | 2009-10-22 |
Attorney, Agent or Firm:
SAGOI, MASAYUKI (JP)
Masayuki Sunai (JP)
Masayuki Sunai (JP)
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