Electromagnetic relay

Patent metadata

Field	Value
Publication number	US-9093239-B2
Application number	US-201113882900-A
Country	US
Kind code	B2
Filing date	Oct 14, 2011
Priority date	Nov 8, 2010
Publication date	Jul 28, 2015
Grant date	Jul 28, 2015

Abstract

An electromagnetic relay ( 1 ) is formed by assembling a drive part ( 30 ), mobile body ( 50 ) that moves when the drive part ( 30 ) is driven, and a plurality of contact mechanisms ( 60, 70 ) that switch the contact and separation of contacts ( 61 d, 62 d, 71 d, 72 d ) by the movement of the mobile body ( 50 ) in a body ( 40 ). Furthermore, the plurality of contact mechanisms ( 60, 70 ) has respective movable contact parts ( 61, 71 ) and fixed contact parts ( 62, 72 ). The electromagnetic relay ( 1 ) has at least one contact mechanism ( 60 ) provided with contacts ( 61 d, 62 d ) connected respectively to the movable contact part ( 61 ) and fixed contact part ( 62 ) and also has at least one contact mechanism ( 70 ) in which either or both of the movable contact part ( 71 ) and fixed contact part ( 72 ) is provided with a plurality of contacts ( 71 d, 72 d ).

First claim

The invention claimed is:

1. An electromagnetic relay, comprising:
a drive part;
a mobile body moved by driving the drive part; and
a plurality of contact mechanisms in which contact and separation are switched by the movement of the mobile body, the drive part, mobile body, and contact mechanisms being assembled into a body, wherein
each of the plurality of contact mechanisms includes a movable contact part and a fixed contact part,
the plurality of contact mechanisms include at least one contact mechanism in which each of the movable and fixed contact parts is provided with one contact, and at least one contact mechanism in which each of the movable and fixed contact parts is provided with plural contacts, wherein
a first wide part is provided at an end part of the movable contact part provided with the plural contacts and the plural contacts of the movable contact part are provided on the first wide part, and
a second wide part is provided at an end part of the fixed contact part provided with the plural contacts and the plural contacts of the fixed contact part are provided on the second wide part, and
in the contact mechanism provided with the plural contacts, the contact of the movable contact part and the contact of the fixed contact part are in contact with each other while the drive part is not driven, and the contact of the movable contact part and the contact of the fixed contact part are separated from each other when the drive part is driven.

2. The electromagnetic relay according to claim 1 , wherein the contact mechanism provided with the plural contacts is assembled into the position adjacent to the drive part.

Assignees

• Kato Yoshimasa
• Panasonic Ip Man Co Ltd

Inventors

• Kato Yoshimasa

Classifications

• H01H50/54 Primary

  Contact arrangements · CPC title

• H01H51/22

  Polarised relays {(H01H51/284 takes precedence)} · CPC title

• H01H50/023

  Details concerning sealing, e.g. sealing casing with resin · CPC title

• H01H2050/028

  Means to improve the overall withstanding voltage, e.g. creepage distances · CPC title

• H01H50/642

  intermediate part being generally a slide plate, e.g. a card · CPC title