Electromagnetic contactor

A technology for electromagnetic contactors and fixed contacts, which is applied in the direction of electromagnetic relays, relays, detailed information of electromagnetic relays, etc., can solve the problems of easy loss of contacts and achieve the effect of reducing contact loss

Inactive Publication Date: 2018-01-23
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since a minute separation occurs between the movable contact and the fixed contact, an arc is generated between the contacts, and there is a problem that the contacts are easily worn out

Method used

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  • Electromagnetic contactor
  • Electromagnetic contactor
  • Electromagnetic contactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] figure 1 It is a figure which schematically shows the schematic structure of the electromagnetic contactor which concerns on Embodiment 1 of this invention, and is a figure which shows the disconnected state in which the movable contact and the fixed contact were separated. figure 2 It is a figure which schematically shows the outline structure of an electromagnetic contactor, and is a figure which shows the closed state in which a movable contactor and a fixed contactor contact. image 3 It is a sectional view showing the detailed structure of the electromagnetic contactor. Figure 4 is along image 3 The sectional view of the A-A line shown.

[0022] The electromagnetic contactor 50 has a housing 1 , a fixed core 5 , an exciting coil 2 , a fixed contact base 4 , a fixed contact 3 , a movable core 10 , a movable contact base 9 , and a movable contact 7 . In addition, in the present embodiment, for the sake of simplification of the drawings, only a pair of contacts ...

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PUM

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Abstract

An electromagnetic contactor capable of suppressing minute separation between a movable contact and a fixed contact and reducing contact loss is obtained. The electromagnetic contactor has: a housing; a fixed iron core supported by an elastic body relative to the housing; a movable iron core arranged opposite to the fixed iron core; a movable system support member separating the movable iron core from the fixed iron core Pretightening in the direction of the movable iron core relative to the housing; the excitation coil, which is arranged around the fixed iron core, generates a pretightening force that overcomes the movable system supporting parts during excitation and adsorbs the movable iron core to the fixed iron core. The electromagnetic force; the fixed contact base, which is rigidly fixed relative to the fixed iron core; the fixed contact, which engages with the fixed contact base; the movable contact, which moves together with the movable iron core, and is excited by the excitation coil When in contact with the fixed contact.

Description

technical field [0001] The invention relates to an electromagnetic contactor. Background technique [0002] As a configuration of a conventional electromagnetic contactor, there is a configuration having: a fixed contact fixed integrally with a case; and a fixed core fixed to the case. In addition, the structure of the electromagnetic contactor is provided with: a movable iron core, which is attracted by the fixed iron core when the coil is excited; and a position separated from the fixed contact (for example, refer to Patent Documents 1 and 2). [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 60-225321 [0004] Patent Document 2: Japanese Unexamined Patent Publication No. 2006-019148 [0005] In the conventional structure, the movable iron core is attracted by the fixed iron core by the excitation of the coil, and collides with the fixed iron core. At the time of this collision, the movable iron core and the fixed iron core vibrate integrally, and t...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01H50/16H01H50/30H01H50/02
Inventor村上贵彦
OwnerMITSUBISHI ELECTRIC CORP