Enclosed type electromagnetic switch having status indication function

Patent metadata

Field	Value
Publication number	US-10217588-B2
Application number	US-201715406695-A
Country	US
Kind code	B2
Filing date	Jan 14, 2017
Priority date	Feb 25, 2016
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

The present invention relates to an enclosed type electromagnetic switch having a status indication function, and more particularly, to and enclosed-type electromagnetic switch having a status indication function that can show the electromagnetic switch's status on an enclosure.

First claim

What is claimed is:

1. An enclosed type electromagnetic switch having a status indication function, the enclosed type electromagnetic switch comprising:
an enclosure having an enclosed structure; and
an electromagnetic switch, wherein the enclosure, which is separate from and independent of the electromagnetic switch, encloses the entire electromagnetic switch to protect the electromagnetic switch from moisture, dust, or impurities,
wherein the electromagnetic switch comprises:
an electromagnetic contactor installed inside the enclosure;
an auxiliary contact unit attached to one side of the electromagnetic contactor; and
an overload relay installed inside the enclosure and providing a trip signal to the electromagnetic contactor,

wherein the enclosure comprises:
a first indicating means that is installed on the enclosure and connected to contacts a (NO contacts) of the auxiliary contact unit to show that the electromagnetic contactor is in the on state; and
a second indicating means that is installed on the enclosure and connected to contacts b (NC contacts) of the auxiliary contact unit to show that the electromagnetic contactor is in the off state, and

wherein the first indicating means and the second indicating means operate in a mutually exclusive manner to each other,
wherein the first and second indicating means include first and second conductor parts connected to the contacts a and the contacts b, respectively, and first and second indicating parts installed in a way that are exposed on the enclosure, and
wherein mounting holes are formed in part of the enclosure to mount the first and second indicating means.

2. The enclosed type electromagnetic switch of claim 1 , wherein the first and second indicating parts are composed of light emitting means or acoustic means.

Assignees

• Lsis Co Ltd

Inventors

• Choi Jaehyuk

Classifications

• H01H2219/036

  Light emitting elements · CPC title

• H01H83/223

  with bimetal elements · CPC title

• H01H50/02

  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

• H01H89/00

  Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass · CPC title

• H01H2071/467

  with history indication, e.g. of trip and/or kind of trip, number of short circuits etc. · CPC title