Electromagnetic contactor

Patent metadata

Field	Value
Publication number	US-9543101-B2
Application number	US-201514738714-A
Country	US
Kind code	B2
Filing date	Jun 12, 2015
Priority date	Aug 14, 2014
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

An electromagnetic contactor includes: a lower frame having an accommodation space therein; a bobbin having a fixed core, and accommodated in the lower frame; a movable core inserted into the bobbin so as to be moveable up and down; a spring installed between the bobbin and the movable core, and configured to provide an upward restoration force to the movable core; and a ‘b’ contact switch installed at one side of the bobbin, wherein a button for operating a switch lever of the ‘b’ contact switch is provided at a movable core plate positioned above the movable core.

First claim

What is claimed is:

1. An electromagnetic contactor, comprising:
a lower frame comprising an opening defining an accommodation space;
a bobbin comprising a fixed core and configured to be accommodated in the lower frame;
a movable core configured to be inserted into the bobbin and moveable up and down;
a spring disposed between the bobbin and the movable core and configured to provide an upward restoration force to the movable core;
a ‘b’ contact switch disposed at one side of the bobbin;
a movable core plate disposed above the movable core;
a button disposed at the movable core plate and configured to operate a switch lever of the ‘b’ contact switch as the movable core is moved up and down;
an extension portion extending from a front surface of the movable core plate; and
an insertion portion disposed at the extension portion and comprising a groove configured to accommodate the button,
wherein the button is formed as an elastic member and is fixedly coupled to the insertion portion.

2. The electromagnetic contactor of claim 1 , wherein the insertion portion comprises an opening defining an opening portion and a fixing portion, wherein a width of the opening portion is smaller than a width of the fixing portion.

3. The electromagnetic contactor of claim 1 , wherein the button comprises a button body having a cylindrical shape and a circumferential groove along an outer circumferential surface of the button body.

Assignees

• Lsis Co Ltd

Inventors

• Jang Hyun Il

Classifications

• H01H47/10 Primary

  by switching-in or -out impedance external to the relay winding · CPC title

• H01H50/20

  movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil · CPC title

• H01H50/546

  for contactors having bridging contacts · CPC title

• H01H50/18

  Movable parts of magnetic circuits, e.g. armature · CPC title

• H01H50/02 Primary

  Bases; Casings; Covers (frames for mounting two or more relays or for mounting a relay and another electric component H02B1/01, H04Q1/08, H05K) · CPC title