Invention Grant
- Patent Title: Arc path formation unit and direct current relay including same
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Application No.: US17639090Application Date: 2020-04-07
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Publication No.: US11784018B2Publication Date: 2023-10-10
- Inventor: Jinhee Park , Jungwoo Yoo
- Applicant: LS ELECTRIC CO., LTD.
- Applicant Address: KR Anyang-si
- Assignee: LS ELECTRIC CO., LTD.
- Current Assignee: LS ELECTRIC CO., LTD.
- Current Assignee Address: KR Anyang-si
- Agency: K&L Gates LLP
- Priority: KR 20190106064 2019.08.28
- International Application: PCT/KR2020/004651 2020.04.07
- International Announcement: WO2021/040173A 2021.03.04
- Date entered country: 2022-02-28
- Main IPC: H01H50/38
- IPC: H01H50/38 ; H01H50/54 ; H01H51/01

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 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.
Public/Granted literature
- US20220301798A1 ARC PATH FORMATION UNIT AND DIRECT CURRENT RELAY INCLUDING SAME Public/Granted day:2022-09-22
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