Title:
AIR CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2021/182788
Kind Code:
A2
Abstract:
An air circuit breaker is disclosed. The air circuit breaker according to an embodiment of the present invention includes a cover magnet unit. The cover magnet unit is directly coupled to an upper cover which forms the outer appearance of the air circuit breaker. The cover magnet unit is positioned adjacent to a fixed contact and forms a magnetic field. Due to the formed magnetic field, an electromagnetic force in a direction toward an arc extinguishing unit is applied to a generated arc. Accordingly, the generated arc may be rapidly moved and extinguished. The cover magnet unit is inserted into a surface of the upper cover and is not exposed to the outside. Therefore, the generated arc is not in contact with the cover magnet unit. As a result, the cover magnet unit is not damaged by the generated arc.
Inventors:
LEE KYU HO (KR)
Application Number:
PCT/KR2021/002587
Publication Date:
September 16, 2021
Filing Date:
March 03, 2021
Export Citation:
Assignee:
LS ELECTRIC CO LTD (KR)
International Classes:
H01H31/02
Foreign References:
| KR20150001499A | 2015-01-06 | |||
| KR20100000825A | 2010-01-06 |
Attorney, Agent or Firm:
ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)
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