Title:
ARC PATH FORMATION UNIT AND DIRECT CURRENT RELAY INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2021/040173
Kind Code:
A1
Abstract:
Shown are an arc path formation unit and a direct current relay including same. The arc path formation unit according to an embodiment of the present invention includes a plurality of magnet parts. The magnet parts form a magnetic field at the point at which each fixed contact is positioned. Each magnet part positioned adjacent to each fixed contact is formed so that opposite surfaces thereof facing each other have different polarities. An electric current flowing through the fixed contact and a movable contact, and the magnetic field generated by each magnet part form an electromagnetic force. The electromagnetic force moves away from the center of the direct current relay. Therefore, the generated arc moves in the direction of the electromagnetic force so as to move away from the center of the direct current relay. Thus, damage to the direct current relay can be prevented.
Inventors:
PARK JINHEE (KR)
YOO JUNGWOO (KR)
YOO JUNGWOO (KR)
Application Number:
PCT/KR2020/004651
Publication Date:
March 04, 2021
Filing Date:
April 07, 2020
Export Citation:
Assignee:
LS ELECTRIC CO LTD (KR)
International Classes:
H01H50/38; H01H50/54; H01H51/01
Foreign References:
| US20160133404A1 | 2016-05-12 | |||
| JP2012511798A | 2012-05-24 | |||
| CN108807043A | 2018-11-13 | |||
| JP2015159131A | 2015-09-03 | |||
| KR20130079045A | 2013-07-10 | |||
| KR101696952B1 | 2017-01-16 | |||
| KR101216824B1 | 2012-12-28 |
Attorney, Agent or Firm:
PARK, Jang-Won (KR)
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