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Four-breakpoint contactor

A technology of contactors and breakpoints, applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve problems such as DC contactors not working properly, and achieve the effect of improving DC electrical performance and reducing breaking voltage

Pending Publication Date: 2019-11-05
DELIXI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a four-breakpoint contactor to solve the technical problem that the DC contactor in the prior art cannot work normally when the wiring is reversed

Method used

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  • Four-breakpoint contactor
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Experimental program
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specific Embodiment approach

[0040] Further, see Figure 2 to Figure 5 , as a specific embodiment of the four-breakpoint contactor provided by the present invention, the moving contact assembly 1 includes two moving contact plates 12, and the moving contacts 11 are respectively arranged on the two moving contact plates 12 opposite ends, and the moving contact 11 is located on the side of the moving contact plate 12 close to the static contact assembly 2 . Specifically, the moving contact plate 12 is a straight long plate, and the moving contact 11 is supported by the moving contact plate 12, so that the two moving contacts 11 at both ends of the moving contact plate 12 can be on the same plane, and the The moving contact plate 12 realizes the fixed connection with the contact bracket 5, and the four moving contacts 11 are all located on the side of the moving contact plate 12 close to the static contact 21, so that the moving contact 11 can be connected with the static contact 21. contact and realize the...

Embodiment approach

[0041] Further, see figure 2 and image 3 , as a specific embodiment of the four-breakpoint contactor provided by the present invention, the two ends of the moving contact plate 12 are extended with an arc strike plate 13, and the arc strike plate 13 faces away from the static contact assembly 2. One side is inclined, and the arc strike plate 13 extends into the arc extinguishing chamber 3 . Specifically, the arc running plate 13 is arranged at both ends of the moving contact plate 12 , and the arc running plate 13 is formed by extending obliquely directly from the moving contact plate 12 , that is, the arc running plate 13 and the moving contact plate 12 are integrally formed. The arc strike plate 13 is arranged towards the side away from the fixed contact 21, which can conveniently transfer the arc to the arc extinguishing chamber 3, so as to better realize the arc extinguishing operation.

[0042] Further, see Figure 2 to Figure 8 , as a specific embodiment of the four...

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Abstract

The invention provides a four-breakpoint contactor, which comprises a contact structure, arc extinguishing chambers and a coil structure. The contact structure comprises a moving contact assembly anda static contact assembly. The moving contact assembly comprises four moving contacts. The static contact assembly comprises four static contacts arranged opposite to the moving contacts, and the twostatic contacts arranged diagonally are connected to form a circuit. The arc extinguishing chambers are located on the two sides of the contact structure. The coil structure is located at the bottom of the contact structure, and drives the moving contact assembly to move relative to the static contact assembly. Both the moving contact assembly and the static contact assembly have four contacts. During opening / closing, the arc generated moves towards the arc extinguishing chambers under the action of the Lorentz force, and the coil structure can control the up-down movement of the moving contact assembly, so that the problem that traditional double-breakpoint direct contactor does not support reverse wiring is solved. The DC voltage is equally divided among the four contact groups, which isbeneficial to reducing the breaking voltage of each breakpoint and improving the DC electrical performance of the product.

Description

technical field [0001] The invention relates to the technical field of electromagnetic contactors, in particular to a four-breakpoint contactor. Background technique [0002] A DC contactor is a contactor used in a DC circuit, mainly used to control a DC circuit. DC contactor generally includes contact system, arc extinguishing device, insulating shell and accessories, etc. Its working principle is: when the contactor coil is energized, the coil current generates a magnetic field, so that the static armature generates electromagnetic attraction to attract the moving armature to drive the moving contact. ; When the coil is powered off, the electromagnetic attraction disappears, and the armature is released under the action of the release spring, so that the moving contact returns to the initial position, thereby realizing the opening and closing process of the contact structure. [0003] The solution of the prior art, such as the patent document with the publication number C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/54H01H50/44H01H9/30
CPCH01H50/54H01H50/44H01H9/30
Inventor 周旭东黄忠尧
Owner DELIXI ELECTRIC