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Title:
RADIAL VENTILATION COOLING STRUCTURE FOR MOTOR
Document Type and Number:
WIPO Patent Application WO/2016/201877
Kind Code:
A1
Abstract:
A radial ventilation cooling structure for a motor comprises at least three core sections (11). A ventilation steel channel (12) is disposed between adjacent core sections (11), and the adjacent iron core sections (11) and the ventilation steel channel (12) form a ventilation channel (13) therebetween. The resistance of a plurality of the ventilation channels (13) gradually increases from two sides of the motor to the center of the motor, thus improving the uniformity of airflows passing through the plurality of the ventilation channels (13), and in turn improving the temperature uniformity of coils and the core sections (11) along the axial direction of the motor. Therefore, the maximum temperature value is reduced without changing the total amount of the airflows, such that a motor shutdown caused by an excessive local temperature is effectively prevented while thermal deformation of a core support frame is lowered to ensure normal operation of the motor.

Inventors:
FAN WENSHOU (CN)
MA SHENGJUN (CN)
Application Number:
PCT/CN2015/094824
Publication Date:
December 22, 2016
Filing Date:
November 17, 2015
Export Citation:
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Assignee:
BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO LTD (CN)
International Classes:
H02K9/18
Foreign References:
CN1784818B2010-06-23
CN1289167A2001-03-28
JP2001095205A2001-04-06
CN103701238A2014-04-02
CN104953766A2015-09-30
CN204669165U2015-09-23
Other References:
See also references of EP 3261229A4
Attorney, Agent or Firm:
INGENUITY INTELLECTUAL PROPERTY LAW FIRM (CN)
北京金律言科知识产权代理事务所(普通合伙) (CN)
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