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Fixing and unlocking mechanism and circuit breaker

A technology of unlocking mechanism and circuit breaker, which is applied in the direction of protection switch operation/release mechanism, circuit, parts of protection switch, etc., which can solve problems such as endangering the safety of equipment and achieve the effect of improving safety

Pending Publication Date: 2021-05-07
SHANGHAI LIANGXIN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when the existing traditional plug-in circuit breaker products are in the installation position, when the circuit breaker has been connected to the wires and the circuit breaker has been closed, when the circuit breaker is pulled out of the cabinet, a small arc will be generated between the terminal of the circuit breaker and the bus bar. , potentially endangering the safety of nearby equipment

Method used

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  • Fixing and unlocking mechanism and circuit breaker
  • Fixing and unlocking mechanism and circuit breaker
  • Fixing and unlocking mechanism and circuit breaker

Examples

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0035] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention provides a fixing and unlocking mechanism and a circuit breaker, and relates to the technical field of low-voltage electric appliances. The fixing and unlocking mechanism comprises a shell, a transmission piece, a locking piece and an unlocking piece, wherein the locking piece is rotationally connected with the shell, and a locking block is arranged on the locking piece; the unlocking piece is rotationally connected with the shell. When the circuit breaker is in a closed state, the locking block is used for being inserted into the limiting hole of the cabinet plate to limit the position of the locking fastener. The transmission piece can rotate around the axis of the transmission piece under the action of external force and drive the unlocking piece to rotate relative to the shell, so that the unlocking piece drives the locking piece to rotate relative to the shell, the locking block is separated from the limiting hole, and the transmission piece rotates around the axis of the transmission piece so that the circuit breaker can be in an opening state. The fixing and unlocking mechanism can be applied to the circuit breaker, the circuit breaker can be pulled out of the cabinet only in the opening state, electric arcs are not generated when the circuit breaker is pulled out in the opening state, and therefore the operation safety of the circuit breaker can be improved.

Description

technical field [0001] The invention relates to the technical field of low-voltage electrical appliances, in particular to a fixing and unlocking mechanism and a circuit breaker. Background technique [0002] With the widespread use of plug-in circuit breakers on various electrical equipment, in order to meet the installation needs of various electrical equipment, the structure of plug-in circuit breakers has also developed to various types. [0003] At present, when the existing traditional plug-in circuit breaker products are in the installation position, when the circuit breaker has been connected to the wires and the circuit breaker has been closed, when the circuit breaker is pulled out of the cabinet, a small arc will be generated between the terminal of the circuit breaker and the bus bar. , which may endanger the safety of nearby equipment. Contents of the invention [0004] The purpose of the present invention includes, for example, to provide a fixing and unlock...

Claims

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Application Information

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IPC IPC(8): H01H71/02H01H71/10H01H9/20H01H9/28
CPCH01H9/20H01H9/286H01H71/0264H01H71/1009
Inventor 张广智于贻鹏黄银芳曹进
Owner SHANGHAI LIANGXIN ELECTRICAL
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