Title:
FAN MOTOR AND FAN MOTOR MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2013/094234
Kind Code:
A1
Abstract:
This fan motor is equipped with: a blade section (10); a motor (40) that has a rotor (20) and multiple stators (30); and a polygonal housing (50). When the distance between auxiliary teeth (35) provided on either end within one stator (30) is defined as a first-order auxiliary teeth pair interval, the distance between the respective first-order auxiliary teeth pairs of two stators is defined as a second-order auxiliary teeth pair interval, and nth-order auxiliary teeth pair intervals (n is an integer equal to or greater than 1) are defined in the same manner, the positions of the respective auxiliary teeth of two or more stators are shifted from each other so as to form the respective stators into different shapes, and a desired interval is set for each nth-order auxiliary teeth pair, in order to minimize cogging 2 * nth-order components.
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Inventors:
MORI TAKESHI (JP)
Application Number:
PCT/JP2012/061978
Publication Date:
June 27, 2013
Filing Date:
May 10, 2012
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MORI TAKESHI (JP)
MORI TAKESHI (JP)
International Classes:
H02K1/10; F04D29/00; F04D29/32; H02K21/14
Domestic Patent References:
| WO2011042975A1 | 2011-04-14 | |||
| WO2011092863A1 | 2011-08-04 |
Foreign References:
| JPH1014141A | 1998-01-16 | |||
| JP2003250235A | 2003-09-05 | |||
| JP2008199801A | 2008-08-28 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)
Michiharu Soga (JP)
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