Title:
SAFETY SHUTTER OF WITHDRAWABLE AIR CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2020/149485
Kind Code:
A1
Abstract:
A safety shutter of the present invention comprises: a base unit; a shutter unit; and a cam unit. The base unit is coupled to a cradle of an air circuit breaker, and a terminal connected to a main circuit passes through the base unit. The shutter unit is coupled to the base unit so as to be spaced apart at a predetermined interval, and accommodates the terminal in the space between the shutter unit and the base unit. The cam unit extends from the base unit and penetrates the shutter unit. The shutter unit releases insulation by exposing the terminal in the direction of the air circuit breaker when the air circuit breaker is inserted in the direction of the base unit. In addition, when the air circuit breaker is withdrawn in the direction opposite to the direction of the base unit, the terminal is received between the base unit and the shutter unit to be insulated.
Inventors:
KIM YOUNG-KOOK (KR)
Application Number:
PCT/KR2019/011152
Publication Date:
July 23, 2020
Filing Date:
August 30, 2019
Export Citation:
Assignee:
LS ELECTRIC CO LTD (KR)
International Classes:
H02B11/127; H01H31/02
Foreign References:
| US20150372460A1 | 2015-12-24 | |||
| US20160036204A1 | 2016-02-04 | |||
| US20050258922A1 | 2005-11-24 | |||
| KR101158645B1 | 2012-06-26 | |||
| KR20170033488A | 2017-03-27 |
Other References:
See also references of EP 3913756A4
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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