Crossbar structure of electromagnetic contactor

Patent metadata

Field	Value
Publication number	US-9646790-B2
Application number	US-201514849397-A
Country	US
Kind code	B2
Filing date	Sep 9, 2015
Priority date	Oct 31, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A crossbar structure of an electromagnetic contactor is provided, specifically, a crossbar structure of an electromagnetic contactor in which consistent performance is attained by preventing a moving mount from being flipped. The electromagnetic contactor includes a crossbar configured to move up and down and a moving contact point disposed on an installation groove, which is formed on the crossbar in a vertical direction, and brought in contact with or separated from a fixed contact point. The installation groove includes an insertion part into which the moving contact point is inserted and assembled and an operating part closely formed enough to prevent the moving contact point from being flipped when the moving contact point moves up and down.

First claim

What is claimed is:

1. An electromagnetic contactor including a crossbar structure, the electromagnetic contactor comprising:
a crossbar configured to move up and down; and
a moving contact point located on an installation groove, the moving contact point formed on the crossbar in a vertical direction and brought in contact with or separated from a fixed contact point,
wherein the installation groove comprises:
an insertion part into which the moving contact point is inserted and assembled; and
an operating part that prevents the moving contact point from being flipped when the moving contact point moves,

wherein the operating part comprises a rib that protrudes from a side wall of the crossbar along a length direction,
wherein the moving contact point comprises contact point portions located at both sides, a central portion formed at a level lower than the contact point portions and connection portions formed between the central portion and the contact point portions,
wherein a width of each connection portion is smaller than a width of the insertion part and larger than a width of the operating part, and
wherein a width of the central portion is smaller than the width of the operating part.

2. The electromagnetic contactor of claim 1 , further comprising an installation mount provided at both sides of the installation groove for mounting the moving contact point.

3. The electromagnetic contactor of claim 1 , wherein an upper portion of the rib has an inclined surface.

4. The electromagnetic contactor of claim 1 , wherein a vertical surface of each connection portion has a diagonal length greater than the width of the insertion part.

5. The electromagnetic contactor of claim 1 , wherein a cross-section of the central portion has a diagonal length greater than an inner width of the operating part.

Assignees

• Lsis Co Ltd

Inventors

• Rho Dong Chae

Classifications

• H01H67/26

  Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch · CPC title

• H01H50/546

  for contactors having bridging contacts · CPC title

• H01H50/045 Primary

  Details particular to contactors (H01H50/042 takes precedence) · CPC title

• H01H1/2008 Primary

  Facilitate mounting or replacing contact bridge and pressure spring on carrier (H01H11/0012 takes precedence) · CPC title

• H01H1/50

  Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position · CPC title