Title:
ARC GAS DISCHARGE DEVICE OF AIR CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2023/171913
Kind Code:
A1
Abstract:
Disclosed is an arc gas discharge device of an air circuit breaker, capable of preventing damage to an arc extinguishing chamber caused by a sharp rise in pressure. The arc gas discharge device of an air circuit breaker, according to one embodiment of the present invention, comprises: a base having an arc extinguishing space in which an arc, generated by means of the operation of an actuator with respect to a stator, rises and is extinguished; an arc extinguishing unit which is provided in the arc extinguishing space of the base, and which has a plurality of grids so that the arc is extinguished and is exhausted through the top thereof; a guide member which is provided in the base and has a part thereof that restricts and guides the arc extinguishing unit so that the arc extinguishing unit can be slightly elevated in the arc extinguishing space; and an elastic member for providing elastic force so that the arc extinguishing unit comes in close contact with the base in the arc extinguishing space, wherein, if an arc gas exceeds a certain pressure, the extinguishing unit rises while overcoming the elastic force of the elastic member, and an exhaust passage is open between the arc extinguishing unit and the base so that the arc gas can be exhausted.
Inventors:
YANG SEUNG PIL (KR)
Application Number:
PCT/KR2023/001533
Publication Date:
September 14, 2023
Filing Date:
February 02, 2023
Export Citation:
Assignee:
LS ELECTRIC CO LTD (KR)
International Classes:
H01H31/02; H01H33/08
Foreign References:
| KR20030047207A | 2003-06-18 | |||
| KR20210111563A | 2021-09-13 | |||
| KR20210123108A | 2021-10-13 | |||
| KR20210117807A | 2021-09-29 | |||
| KR20210115586A | 2021-09-27 |
Attorney, Agent or Firm:
ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)
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