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Electromagnetic relay

A technology of electromagnetic relay and electromagnetic force, applied in the direction of electromagnetic relay, relay, detailed information of electromagnetic relay, etc., can solve problems such as difficult to interrupt the arc, and the arc cannot be fully extended

Active Publication Date: 2014-01-08
ANDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the arc sometimes does not extend sufficiently so that the arc cannot be reliably interrupted simply by arranging magnets near the movable and fixed contacts as in conventional electromagnetic relays
In high-voltage electromagnetic relays (for example, relays for hybrid electric vehicles with a voltage of 400V), specifically, it is difficult to reliably interrupt the arc because the arc length becomes long

Method used

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  • Electromagnetic relay
  • Electromagnetic relay
  • Electromagnetic relay

Examples

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no. 1 example

[0020] Refer to the following Figure 1-4 A first embodiment of the present invention will be described.

[0021] The electromagnetic relay of the first embodiment includes a plate-like base 10 made of resin and a rectangular parallelepiped case 11 made of resin and formed into a column shape having a bottom portion, and the case 11 is attached to the base 10 . A space (hereinafter referred to as an inner space) 10 a is defined within the relay by a base 10 and a housing 11 .

[0022] Two stationary contact holding elements 12 , 13 made of conductive metal are fixed to the base 10 . The two fixed contact holding elements 12 , 13 pass through the base 10 and their one end sides are located in the inner space 10 a and the other end sides are located in the outer space.

[0023] Stationary contacts 14 , 15 made of conductive metal are respectively embedded and fixed on end portions of the two stationary contact holding members 12 , 13 on the inner space 10 a side. The two fixe...

no. 2 example

[0060] Refer to the attached Figure 5-9C A second embodiment of the present invention will be described. The electromagnetic relay according to the second embodiment includes a plate-shaped base 310 made of resin and a rectangular parallelepiped case 311 made of resin and formed into a column shape having a bottom portion. The base 310 is installed in the housing 311 so as to close the opening of the housing 311 , and a space (hereinafter referred to as an inner space) 310 a is defined within the relay by the base 310 and the housing 311 .

[0061] Two stationary contact holding elements 312 , 313 made of conductive metal are fixed to the base 310 . Two fixed contact holding members 312, 313 pass through the base 310, and their one end sides are located in the inner space 310a, and the other end sides are located in the outer space. In addition, their intermediate portions are located in the through holes of the base 310 .

[0062] Stationary contacts 314 , 315 made of con...

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Abstract

An electromagnetic relay includes a case, a base, a magnet coil, a movable member driven by electromagnetic force of the coil, a moving contact, a fixed contact engaged with or disengaged from the moving contact, a fixed contact holding member (312, 313, 12, 13) fixed to the base with the holding member passing therethrough and having a load circuit terminal, and a magnet (326 ,327, 26, 27) applying Lorentz force to arc generated between the fixed contact and the moving contact. The case includes a guide part (3111, 3112, 111, 112) on its region with which arc extended in a Lorentz force application direction (f1, f2, F1, F2) collides. The guide part guides arc after the collision to extend arc in a different direction from the application direction. The case includes a case partition wall(3113, 3114) between the guide part and the base. The holding member has a guide part opposing portion opposed to the guide part. The opposing portion is covered with the case partition wall.

Description

technical field [0001] The invention relates to an electromagnetic relay for opening and closing an electronic circuit. Background technique [0002] According to the conventional electromagnetic relay described in Japanese Unexamined Patent Application Publication No. 2006-351240, the fixed contacts are positioned and held at predetermined positions by the fixed contact holding member, and the movable member on which the movable contact is mounted is controlled by the magnet coil Driven by electromagnetic force, the movable contacts engage and disconnect with the fixed contacts. Therefore, conventional relays open and close electronic circuits. Still further, magnets are arranged near the movable and fixed contacts, and as a result of this arc extending through the Lorentz force exerted on it, a conventional relay interrupts when the movable and fixed contacts are disconnected. arc generated. Furthermore, by extending a part of the fixed contact holding element near the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/16H01H50/54
Inventor 名仓宏伊藤贵史武山雅树
Owner ANDEN CORP