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Patent Searching and Data


Title:
BRUSHLESS DC MOTOR WITH MOLD COVER FOR GROUND PROTECTION
Document Type and Number:
WIPO Patent Application WO/2019/212142
Kind Code:
A1
Abstract:
The brushless DC motor according to the present invention, comprises: a housing 10 comprising a stator 15 in the inside, and having a hollow part 11 in which a rotor 20 coupled to a shaft 21 is positioned in the middle part; an upper bearing 22 coupled to an output side of the shaft 21 to rotatably support the shaft; an upper bearing cover 31 accommodating the upper bearing 22 and covering the hollow part 11; a lower bearing 23 coupled to a lower end of the shaft 21 to rotatably support the shaft; a lower bearing holder 32 accommodating the lower bearing 23 and coupled to a middle protrusion 14 protruding from the middle of a lower part of the housing 10; a first grounding member 50 having an upper end part 50a bendingly coupled to an outer part of the upper bearing cover 31, and a lower end part 50b coupled to a middle part of the lower bearing holder 32, so as to make the upper bearing cover 31 and the lower bearing holder 32 electrically equipotential; and a mold cover 42 covering a lower part of the middle protrusion 14 and part of the first grounding member 50 together.

Inventors:
JANG, Jeong Cheol (201-2001, 55 Ilgokmaeul-ro,Buk-gu, Gwangju, 61040, KR)
LEE, Kyoung Joo (211-905, 46 Pungyeong-ro 169beon-gil,Gwangsan-gu, Gwangju, 62226, KR)
KIM, Byung Soo (6-3 Gunbun-ro 229beon-gil, Seo-gu, Gwangju, 61980, KR)
YANG, Hyun Sung (103-1110, 7-8 Hwaun-ro 23beon-gil,Seo-gu, Gwangju, 62045, KR)
Application Number:
KR2019/002975
Publication Date:
November 07, 2019
Filing Date:
March 14, 2019
Export Citation:
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Assignee:
NEW MOTECH CO., LTD. (8 Hanamsandan 7beon-ro, Gwangsan-gu, Gwangju, 62216, KR)
International Classes:
H02K11/40; H02K5/173; H02K7/08; H02K29/00
Foreign References:
KR101562736B12015-10-23
KR20150106980A2015-09-23
US20080136273A12008-06-12
JP2014072908A2014-04-21
JP2013081264A2013-05-02
Attorney, Agent or Firm:
LEE, Sung Rok (Woogin Intellectual Property Law Firm, 7th Fl. 38-3 Teheranro-4-gil,,Gangnam-gu, Seoul, 06241, KR)
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