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Patent Searching and Data


Title:
ROTOR, MOTOR, AND BRUSHLESS WIPER MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/202916
Kind Code:
A1
Abstract:
Provided are a rotor, a motor, and a brushless wiper motor with which it is possible to improve work efficiency in installing magnet covers and also possible to reduce cracking in magnet covers. The present invention is provided with: a rotor core 71 which rotates about a rotation axis line C; magnets 72 which are disposed on an outer circumferential surface of the rotor core 71; salient poles 76 which are formed between the magnets 72 so as to protrude radially outward; and a magnet cover 73 which covers the rotor core 71 and the magnets 72. The magnet cover 73 is provided with an end-face cover 91 that covers one end-face side of the rotor core 71 in the direction of the rotation axis line C, and an outer circumferential surface cover 93 that covers the outer circumference of the magnet 72 via a bent part 92. The rotor core 71 and the end-face cover 91 are respectively provided with catching parts 79, 95 that allow the rotor core 71 and the magnet cover 73 to engage with each other so as to prevent relative rotation therebetween. Contact avoidance parts 85 are provided to at least one of the magnets 72 and the bent part 92 in order to avoid contact therebetween.

Inventors:
OHORI RYO (JP)
SHIODA NAOKI (JP)
Application Number:
PCT/JP2019/012372
Publication Date:
October 24, 2019
Filing Date:
March 25, 2019
Export Citation:
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Assignee:
MITSUBA CORP (JP)
International Classes:
H02K1/27; B60S1/08
Foreign References:
JP2014050244A2014-03-17
JP2014212604A2014-11-13
JP2004254394A2004-09-09
JP2016092860A2016-05-23
JP2016034216A2016-03-10
JP2008228490A2008-09-25
JP2016175638A2016-10-06
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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