Title:
SHAFT GROUND RING FOR PREVENTING ELECTRICAL EROSION IN BEARING
Document Type and Number:
WIPO Patent Application WO/2023/145998
Kind Code:
A1
Abstract:
A shaft ground ring and an assembly thereof are disclosed. The present invention provides a shaft ground ring comprising: a ring body fastened to a shaft of an electric motor to prevent electrical erosion due to leakage current and extending so as to surround the outer circumferential surface of the shaft; and a plurality of ground protrusions protruding from the inner circumferential surface of the ring body, contacting the outer circumferential surface of the shaft, and spaced apart from each other with a predetermined gap along the ring body. The present invention can properly function even in a high-capacity electric motor by maintaining an appropriate grounding state in an oil-cooling environment.
Inventors:
KIM MIN HUN (KR)
HAN SUNG YUHP (KR)
HAN SUNG YUHP (KR)
Application Number:
PCT/KR2022/001463
Publication Date:
August 03, 2023
Filing Date:
January 27, 2022
Export Citation:
Assignee:
HJ TONG SANG CO LTD (KR)
HAN JIN TRADING ＆ ENG CO LTD (KR)
HAN JIN TRADING ＆ ENG CO LTD (KR)
International Classes:
H02K11/40; F16C19/52; F16C41/00; H01R4/66; H01R13/652; H02K7/00
Foreign References:
| KR20140023996A | 2014-02-27 | |||
| JP2012210065A | 2012-10-25 | |||
| JP2019002497A | 2019-01-10 | |||
| US20180156276A1 | 2018-06-07 | |||
| US20070159763A1 | 2007-07-12 |
Attorney, Agent or Firm:
DODAM IP LAW FIRM (KR)
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