Invention Application
- Patent Title: DIRECT CURRENT RELAY AND MANUFACTURING METHOD THEREFOR
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Application No.: US17612389Application Date: 2019-08-20
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Publication No.: US20220208494A1Publication Date: 2022-06-30
- Inventor: Jungwoo YOO
- Applicant: LS ELECTRIC CO., LTD.
- Applicant Address: KR Anyang-si, Gyeonggi-do
- Assignee: LS ELECTRIC CO., LTD.
- Current Assignee: LS ELECTRIC CO., LTD.
- Current Assignee Address: KR Anyang-si, Gyeonggi-do
- Priority: KR10-2019-0063321 20190529
- International Application: PCT/KR2019/010552 WO 20190820
- Main IPC: H01H50/18
- IPC: H01H50/18 ; H01H50/36 ; H01H50/54 ; H01H50/02

Abstract:
Disclosed are a direct current relay and a manufacturing method therefor. A movable contact part provided in a direct current relay comprises a movable contact and a lower yoke positioned below the movable contact configured to attenuate an electromagnetic repulsive force generated by contact between the movable contact and a fixed contact. The movable contact is provided with a coupling protrusion portion that protrudes downward. The lower yoke is provided with a movable contact coupling portion into which the coupling protrusion portion is inserted. The coupling protrusion portion can receive pressure directed radially outward after being inserted into the movable contact coupling portion. The coupling protrusion portion is expanded radially outward by the pressure. Accordingly, the outer circumferential surface of the coupling protrusion portion can be inserted into and coupled to the inner circumferential surface of the lower yoke that forms the movable contact coupling portion.
Public/Granted literature
- US12249473B2 Direct current relay and manufacturing method therefor Public/Granted day:2025-03-11
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