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Movable contact structure for high power DC contactor

A technology of DC contactors and moving contacts, which is applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc. It can solve the problems of poor synchronization of multiple sets of static contacts, save space, improve consistency, and reduce the cost of parts Effect

Active Publication Date: 2018-03-30
常州市吉士电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to overcome the deficiency of poor synchronization of multiple sets of static contacts in the prior art, the present invention provides a movable contact structure for high-power DC contactors

Method used

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  • Movable contact structure for high power DC contactor
  • Movable contact structure for high power DC contactor
  • Movable contact structure for high power DC contactor

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Embodiment Construction

[0019] The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

[0020] Such as Figure 1-5 As shown, a movable contact structure for a high-power DC contactor of the present invention includes two movable contact assemblies, a movable contact bracket 1 and a reset push rod 2, and the two movable contact assemblies are radially and symmetrically arranged at the reset position On both sides of the push rod 2, the moving contact assembly includes a moving contact plate 3, a tracking push rod 4 and a tracking spring 5. Injection-molded integrally with the movable contact bracket 1 , the tracking spring 5 is sheathed on the tracking push rod 4 between the movable contact plate 3 and the movable contact bracket 1 , and the tracking spring 5 is in...

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Abstract

The invention provides a movable contact structure for a high-power DC contactor. The movable contact structure comprises two movable contact assemblies, a movable contact bracket and a reset push rod, wherein the two movable contact assemblies are symmetrically arranged at two sides of the reset push rod along the radial direction; and the movable contact assemblies, the reset push rod and the movable contact bracket are injected into a whole. According to the movable contact structure for the high-power DC contactor provided by the invention, the movable contact bracket is made of a high-strength plastic material; and the movable contact assemblies, the reset push rod and the movable contact bracket are injected into a whole to play a centering role, so that the consistency of actions of the movable contact assemblies is improved; and the reliability of the DC contactor is improved. Furthermore, two movable contact assemblies are arranged on one push rod, so that used parts are reduced; the space is saved; and the volume of the DC contactor is reduced.

Description

technical field [0001] The invention relates to the technical field of DC contactors, in particular to a movable contact structure for high-power DC contactors. Background technique [0002] The vigorous promotion of energy-saving and high-efficiency DC power consumption equipment such as electric vehicles, fast charging piles, battery switching and high-voltage DC voltage switch control, especially the large-scale development and use of electric vehicles, makes multi-contact group DC contactor products extremely important. At present The triggering of multiple sets of contacts on the market directly uses two separate moving contacts. Due to the deviation in the mechanical structure, the synchronization of the closing of multiple sets of contacts is poor, resulting in difficulty in starting. In addition, multiple sets of independent moving contacts also occupy the design space, making the volume of the DC contactor too large and not easy to install. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/54
CPCH01H50/54
Inventor 刘士杰
Owner 常州市吉士电器有限公司
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