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Contacting mechanism and electromagnetic relay equipped therewith

A technology of contact mechanism and moving contact, which is applied in electromagnetic relays, electromagnetic relay details, relays, etc., can solve the problems of reduced life of electromagnetic relays and damage of movable contact pieces, so as to expand the design width and avoid abnormal heating Effect

Active Publication Date: 2017-10-13
ORMON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the movable contact piece is damaged, and the life of the electromagnetic relay may be greatly reduced.

Method used

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  • Contacting mechanism and electromagnetic relay equipped therewith
  • Contacting mechanism and electromagnetic relay equipped therewith
  • Contacting mechanism and electromagnetic relay equipped therewith

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0145] in will Figure 16 In the state where the first planar portion 160 of the movable contact piece 145 shown is riveted and fixed to the movable iron piece, a predetermined load is applied to the first movable contact 161, and the first and second movable contacts 161, 162 and the relationship between the displacements of the first and second fixed parts 164 and 165 and the first and second movable contacts 161 and 162 were analyzed.

[0146] Specifically, when the spring constant k1 of the first flat portion 160 between the first movable contact 161 and the first fixed portion 164 is set to 100%, between the first and second movable contacts 161 and 162 The ratio of the spring constant k3, and the ratio of the linear distance L1 from the first movable contact 161 to the first fixed part 164 to the linear distance L4 between the first and second fixed parts 164, 165 (L1 / L4 ) and the change ratio (H2 / H1) of the displacement amount (H2) of the second movable contact 162 rel...

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PUM

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Abstract

This contacting mechanism comprises: a mobile contact piece (46) having a crimp portion (80), a pair of arm portions (66) bifurcating from the crimp portion (80) into two branches whereof each has a free extremity, first and second mobile contacting points (61, 62) provided respectively at the free extremities of the pair of arm portions (66), and a linking portion (67) linking the free extremities of the pair of arm portions (66); and first and second fixed contacting points disposed to face the first and second mobile contacting points (61, 62) respectively so as to enable contact therewith or separation therefrom.

Description

technical field [0001] The present invention relates to a contact mechanism and an electromagnetic relay provided with the same. Background technique [0002] Conventionally, as an electromagnetic relay, there is an electromagnetic relay described in Patent Document 1, for example. This electromagnetic relay includes: an electromagnet device having an electromagnet excited by energization; and a contact mechanism for bringing two fixed contacts and two movable contacts into contact with or apart in accordance with excitation and demagnetization of the electromagnet. [0003] Patent Document 1: (Japanese) Unexamined Patent Application Publication No. 2009-289678 [0004] However, in the above-mentioned conventional electromagnetic relay, since the movable contacts are respectively provided at the free ends of the bifurcated movable contact pieces, the two movable contacts respectively form independent conduction paths. Therefore, for example, when a foreign object enters be...

Claims

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Application Information

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IPC IPC(8): H01H1/26H01H50/56
CPCH01H1/26H01H50/56H01H1/62H01H50/28H01H50/546H01H50/60H01H50/54H01H50/64
Inventor 佐佐木纯筒井和广
Owner ORMON CORP