公开(公告)号：US20240087830A1

公开(公告)日：2024-03-14

申请号：US17767787

申请日：2020-04-09

Applicant: LS ELECTRIC CO., LTD.

Inventor： Kyeonghun JANG ,  Deokyong YUN ,  Minseok KIM

IPC: H01H73/18 ,  H01H73/04

CPC classification number: H01H73/18 ,  H01H73/04

Abstract: An electromagnetic contactor is disclosed. An electromagnetic contactor according to an embodiment of the present disclosure includes an arc extinguishing unit. The air extinguishing unit is configured to surround a position where a fixed contactor and a movable contactor are in contact with each other. Accordingly, an arc generated between the fixed contactor and the movable contactor can extend toward a grid without arbitrarily flowing in an inner space of the electromagnetic contactor. Further included is an arc box unit according to an embodiment of the present disclosure. An arc outlet is formed passing through the arc box unit. An arc that is extinguished while passing through the grid can be discharged to the outside of the electromagnetic contactor through the arc outlet. Accordingly, the arc can be extinguished and discharged quickly and effectively. As a result, components of the electromagnetic contactor are not damaged by the generated arc.

公开(公告)号：US20230033798A1

公开(公告)日：2023-02-02

申请号：US17756945

申请日：2020-04-09

Applicant: LS ELECTRIC CO., LTD.

Inventor： Kyeonghun JANG ,  Minseok KIM ,  Deokyong YUN

IPC: H01H9/34 ,  H01H50/14 ,  H01H50/60

Abstract: An arc box and an electromagnetic contactor comprising same are disclosed. The arc box according to an embodiment of the present disclosure comprises a coupling protrusion. The coupling protrusion is inserted into and coupled to a grid coupling hole of an arc chamber. Therefore, the arc chamber can be stably coupled to the arc box. In one embodiment, the coupling can be performed through snap fastening. Therefore, the arc chamber and the arc box can be easily coupled. A rib part is formed on the arc box. The rib part is positioned to be adjacent to the coupled arc chamber so as to prevent pitching of the arc chamber. Therefore, the arc chamber coupled to the arc box can stably maintain a stopping state.

公开(公告)号：US20230121694A1

公开(公告)日：2023-04-20

申请号：US17793519

申请日：2020-12-24

Applicant: LS ELECTRIC CO., LTD.

Inventor： Kyeonghun JANG ,  Minseok KIM ,  Deokyong YUN

IPC: H01H50/04 ,  H01H50/54

Abstract: The present disclosure relates to a frame of an electromagnetic contactor, and more specifically, to an electromagnetic contactor having excellent coupling force between an arc box and a frame. The electromagnetic contactor, comprises: a lower frame; an upper frame coupled to the upper portion of the lower frame; and an arc cover coupled to the upper portion of the upper frame, wherein a first coupling part, is protrudingly formed on one surface of the lower frame, a second coupling part, connected to the first coupling part is protrudingly formed on one surface of the upper frame, and a third coupling part, connected to the second coupling part is protrudingly formed on one surface of the arc cover, wherein the fastening member is fastened by connecting the first coupling part, the second coupling part and the third coupling part.