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Electromagnetic relay

A technology of electromagnetic relays and magnets, applied in the direction of electromagnetic relays, relays, detailed information of electromagnetic relays, etc., can solve the problems of low magnetic flux density and insufficient cutting ability, and achieve the effect of improving the cutting ability

Active Publication Date: 2019-06-18
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the magnetic flux density near the contacts is low, and the breaking capability is insufficient
[0005] If a large permanent magnet is used to solve the above problems, the entire electromagnetic relay will also become large

Method used

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  • Electromagnetic relay

Examples

Experimental program
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Embodiment Construction

[0023] Hereinafter, electromagnetic relay 1 according to an embodiment of the present invention will be described with reference to the drawings. figure 1 , figure 2 They are a perspective view and an exploded perspective view of the electromagnetic relay 1, respectively. image 3 It is a perspective view of the stopper 5 of the electromagnetic relay 1 . Figure 4 It is a cross-sectional view of the electromagnetic relay 1 when the energization to the exciting coil 21 is cut off. Figure 5 It is a perspective view of main parts of the electromagnetic relay 1 when the energization to the exciting coil 21 is cut off. Figure 6 It is a cross-sectional view of the electromagnetic relay 1 when the exciting coil 21 is energized. Figure 7 It is a perspective view of main parts of the electromagnetic relay 1 when the exciting coil 21 is energized.

[0024] Such as figure 1 , figure 2 As shown, the electromagnetic relay 1 has an electromagnet block 2 , a contact block 3 , a ho...

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PUM

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Abstract

The invention provides an electromagnetic relay, which has an exciting coil, a pair of fixed contacts, a movable spring, a magnet and a yoke in contact with the magnet. A pair of fixed contacts is arranged along the first direction. The movable spring comes into contact with or separates from the pair of fixed contacts according to the energization of the excitation coil. A magnet is provided to elongate an arc generated between a pair of fixed contacts and a movable spring. The magnet is adjacent to the pair of fixed contacts along a second direction perpendicular to the first direction, and is adjacent to the exciting coil along a third direction perpendicular to the first direction and the second direction. The yoke is adjacent to the pair of fixed contacts in the third direction in a state of being in contact with the magnet.

Description

technical field [0001] The invention relates to an electromagnetic relay, and more specifically relates to a hinged electromagnetic relay. Background technique [0002] Conventionally, there is known an electromagnetic relay having a permanent magnet for extinguishing an arc generated when a movable contact separates from a fixed contact. [0003] For example, the electromagnetic relay described in Japanese Patent Application Laid-Open No. 10-326553 has a permanent magnet arranged near a contact portion (fixed contact, movable contact). In this electromagnetic relay, the arc generated between the movable contact and the fixed contact is elongated by the magnetic force of the permanent magnet, and then the arc is extinguished. [0004] Hereinafter, problems in the above-mentioned conventional electromagnetic relay will be briefly described. In conventional electromagnetic relays, permanent magnets are arranged near contacts. Therefore, it is necessary to use a small perman...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/44H01H50/38
CPCH01H9/443H01H50/38H01H50/546H01H50/18H01H50/56
Inventor 山形胜利西村司
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD