Title:
ARC PATH FORMING UNIT AND DIRECT CURRENT RELAY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/040176
Kind Code:
A1
Abstract:
Disclosed are an arc path forming unit and a direct current relay comprising same. The arc path forming unit according to an embodiment of the present invention comprises a single magnet unit disposed on one side of a magnet frame, and a plurality of magnet units disposed on another side opposite to the one side. The plurality of magnet units are sequentially arranged in the longitudinal direction. One side of a magnet unit positioned between at least two of the plurality of magnet units and facing the single magnet unit is magnetized with the same polarity as that of one side of the single magnet unit facing the magnet unit. As such, magnetic fields in the direction of exerting repulsive forces on each other are formed in the central portion of the direct current relay. Accordingly, since the arc does not move to the central portion, damage to components disposed in the central portion can be prevented.
Inventors:
PARK JINHEE (KR)
YOO JUNGWOO (KR)
YOO JUNGWOO (KR)
Application Number:
PCT/KR2020/004657
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:
| JP2012511798A | 2012-05-24 | |||
| JP2015159131A | 2015-09-03 | |||
| CN104091726A | 2014-10-08 | |||
| US20160133404A1 | 2016-05-12 | |||
| CN105374632A | 2016-03-02 | |||
| KR101696952B1 | 2017-01-16 | |||
| KR101216824B1 | 2012-12-28 |
Other References:
See also references of EP 4024431A4
Attorney, Agent or Firm:
PARK, Jang-Won (KR)
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