Device structure of a floating static contact assembly

A device structure and static contact technology, applied in the direction of circuit breaker contacts, circuit breaker components, etc., can solve the problems of not meeting market demand, unfavorable actual mass production, poor assembly, etc., to protect the safety of the circuit and improve the connection Make or break ability, favorable effect of arc striking

Active Publication Date: 2021-12-14
GUIZHOU TAIYONG CHANGZHENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the large frame current products of the automatic transfer switch in the existing market, the floating arc-starting static contact assembly and the main static contact assembly are of an integrated structure, and the design is complex, resulting in poor assembly, which is not conducive to actual mass production and cannot meet the market requirements. need

Method used

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  • Device structure of a floating static contact assembly
  • Device structure of a floating static contact assembly
  • Device structure of a floating static contact assembly

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Embodiment Construction

[0022] Such as Figure 1 to Figure 9 As shown, a device structure of a floating static contact assembly according to the present invention includes a main static contact assembly 1, a clip-shaped piece 2, a floating type arc-starting static contact assembly 3, a clip-shaped piece fixing screw 4, Connect the screw 5, the limit shaft 6, the positioning shaft 7, the torsion spring 8, the limit screw 9 and the arc striker 10, a groove cavity 101 is provided in the main static contact assembly 1, and the floating arc striker The static contact assembly 3 is composed of an arc-starting static contact 301, an arc-starting static contact silver alloy 302, an arc barrier 303, a pin 304, a copper braided wire 305 and a pressing piece 306, and the arc barrier 303 is installed through the pin 304 At the front end of the arc starting static contact 301, the arc starting static contact silver alloy 302 is arranged on the arc shield 303, one end of the copper braided wire 305 is connected wi...

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Abstract

The invention discloses a device structure of a floating static contact assembly, which comprises a main static contact assembly, a clip-shaped piece, a floating arc-starting static contact assembly, a fixing screw of the clip-shaped piece, a connecting screw, a limit shaft, a positioning Shaft, torsion spring, limit screw and arc strike piece, floating arc strike static contact assembly assembles the limit shaft, positioning shaft and torsion spring into an assembly through the clip-shaped piece, and fixes the screw and limit position through the clip-shaped piece Screws are fixed on the main static contact assembly, and the copper braided wire on the floating arc strike static contact assembly is fixed on the main static contact assembly by connecting screws to form an equipotential; a waist is formed on the clamp The floating arc-igniting static contact assembly floats up and down in the waist-shaped hole to increase its overtravel, so that the floating arc-igniting static contact assembly is beneficial to arc ignition during the connection or breaking process, and improves the connection or breaking. ability. By adopting the structure of the invention, the connecting or breaking capacity can be improved, the safety of the circuit can be protected, and the safety performance of the product can be improved.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a device structure of a floating static contact assembly. Background technique [0002] A circuit breaker is a switching device that can close, carry and break current under normal circuit conditions, and can close, carry and break current under abnormal circuit conditions within a specified time, and is widely used in various fields . A circuit breaker is generally composed of a contact system, an arc extinguishing system, an operating mechanism, a trip unit, and a casing. The existing low-voltage circuit breaker may easily cause a large electric repulsion force due to the direction of the current, which is not conducive to the contact carrying a large load. The short-time withstand current or the short-time withstand current index is low. Especially when a circuit breaker with current limiting function produces a short circuit, its dynamic and static contacts will be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H73/04H01H73/18
CPCH01H73/04H01H73/18
Inventor 黄正乾罗细刚朱熔吾
Owner GUIZHOU TAIYONG CHANGZHENG TECH CO LTD
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