• 专利标题: ARC path forming unit and direct current relay including same
  • 申请号: US17638702
    申请日: 2020-04-07
  • 公开(公告)号: US12062509B2
    公开(公告)日: 2024-08-13
  • 发明人: Jinhee ParkJungwoo 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 20190106063 2019.08.28
  • 国际申请: PCT/KR2020/004650 2020.04.07
  • 国际公布: WO2021/040172A 2021.03.04
  • 进入国家日期: 2022-02-25
  • 主分类号: H01H33/18
  • IPC分类号: H01H33/18 H01H33/53
ARC path forming unit and direct current relay including same
摘要:
An arc path forming unit and a direct current relay including same are illustrated. The arc path forming unit according to an embodiment of the present invention comprises multiple magnets. Each of the magnets is configured to form a magnetic field at a point where each stationary contact is located. Each of the magnets located adjacent to each stationary contact is configured such that the opposite surfaces thereof have different polarities. A current flowing through a stationary contact and a movable contact and a magnetic field formed by each of the magnets generate an electromagnetic force. The electromagnetic force travels in a direction away from the center of the direct current relay. Therefore, a generated arc travels in the direction of the electromagnetic force and is thus moved in a direction away from the center of the direct current relay. Accordingly, the direct current relay can be prevented from being damaged.
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