Electromagnetic relay

Patent metadata

Field	Value
Publication number	US-9324525-B2
Application number	US-201414166964-A
Country	US
Kind code	B2
Filing date	Jan 29, 2014
Priority date	Mar 8, 2013
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

An electromagnetic relay has a base having an upper surface, an electromagnet block, formed by winding a coil around a spool with at least one end provided with a guard portion and inserting an iron core through a through hole of the spool, mounted on the upper surface of the base such that a shaft center of the iron core is parallel to the base, a movable contact, provided at a free end of a movable touch piece that rotates based on magnetization and demagnetization of the electromagnet block, that is brought into contact with or separated from a fixed contact, and a press-fitting portion that is press-fitted into a press-fitting hole provided at the edge of the outward surface of the guard portion along the shaft center of the iron core. The press-fitting portion extends to the lateral side from a fixed contact terminal that has the fixed contact.

First claim

What is claimed is:

1. An electromagnetic relay, comprising:
a base comprising an upper surface;
an electromagnet block, which is formed by winding a coil around a spool with at least one end provided with a guard portion and inserting an iron core through a through hole of the spool, mounted on the upper surface of the base such that a longitudinal shaft axis of the iron core is parallel to the base;
a movable contact, which is provided at a free end of a movable touch piece that rotates based on magnetization and demagnetization of the electromagnet block, that is brought into contact with or separated from a fixed contact; and
a press-fitting portion that is press-fitted into a press-fitting hole provided at the edge of the outward surface of the guard portion along the shaft center of the iron core,
wherein the press-fitting portion extends to the lateral side from a fixed contact terminal that has the fixed contact,
wherein the fixed contact is arranged between a pair of press-fitting portions extending in parallel, and
wherein the pair of press-fitting portions extending in parallel protrudes from a single fixed contact.

2. The electromagnetic relay according to claim 1 , wherein the fixed contact terminal is at least either one of a normally open fixed contact terminal and a normally closed fixed contact terminal respectively comprising a normally open fixed contact and a normally closed fixed contact which are opposed to each other with the movable contact provided therebetween.

3. The electromagnetic relay according to claim 1 ,
wherein the fixed contact terminals are a normally closed fixed contact terminal and a normally open fixed contact terminal respectively comprising a normally closed fixed contact and a normally open fixed contact which are opposed to each other with the movable contact provided therebetween, and
wherein press-fitting holes to be press-fitted with press-fitting portions of the normally closed fixed contact terminal and the normally open fixed contact terminal are arranged in upper and lower parts at the edge of the front surface of the guard portion.

4. The electromagnetic relay according to claim 2 , wherein the press-fitting portions are respectively cut from a pair of corners formed by bending both-side edges of the normally open fixed contact terminal in the same direction.

5. The electromagnetic relay according to claim 1 , wherein the fixed contact terminal is at least either one of a normally open fixed contact terminal and a normally closed fixed contact terminal respectively comprising a normally open fixed contact and a normally closed fixed contact which are opposed to each other with the movable contact provided therebetween.

6. The electromagnetic relay according to claim 1 ,
wherein the fixed contact terminals are a normally closed fixed contact terminal and a normally open fixed contact terminal respectively comprising a normally closed fixed contact and a normally open fixed contact which are opposed to each other with the movable contact provided therebetween, and
wherein press-fitting holes to be press-fitted with press-fitting portions of the normally closed fixed contact terminal and the normally open fixed contact terminal are arranged in upper and lower parts at the edge of the front surface of the guard portion.

7. The electromagnetic relay according to claim 3 , wherein the press-fitting portions are respectively cut from a pair of corners formed by bending both-side edges of the normally open fixed contact terminal in the same direction.

Assignees

• Omron Tateisi Electronics Co

Inventors

• Yamauchi Hideto
• Mimura Yoshiaki
• Sanada Hironori

Classifications

• H01H1/34 Primary

  with provision for adjusting position of contact relative to its co-operating contact · CPC title

• H01H49/00

  Apparatus or processes specially adapted to the manufacture of relays or parts thereof · CPC title

• H01H50/34

  Means for adjusting limits of movement; Mechanical means for adjusting returning force · CPC title

• H01H50/54 Primary

  Contact arrangements · CPC title