- 专利标题: Arc path formation unit and direct current relay including same
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申请号: US17639090申请日: 2020-04-07
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公开(公告)号: US11784018B2公开(公告)日: 2023-10-10
- 发明人: Jinhee Park , Jungwoo Yoo
- 申请人: LS ELECTRIC CO., LTD.
- 申请人地址: KR Anyang-si
- 专利权人: LS ELECTRIC CO., LTD.
- 当前专利权人: LS ELECTRIC CO., LTD.
- 当前专利权人地址: KR Anyang-si
- 代理机构: K&L Gates LLP
- 优先权: KR 20190106064 2019.08.28
- 国际申请: PCT/KR2020/004651 2020.04.07
- 国际公布: WO2021/040173A 2021.03.04
- 进入国家日期: 2022-02-28
- 主分类号: H01H50/38
- IPC分类号: H01H50/38 ; H01H50/54 ; H01H51/01
摘要:
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 disclosure 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.
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