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Low-voltage circuit breaker double fault contact actuator

A technology of low-voltage circuit breakers and actuators, which is applied in the direction of protection switch operation/release mechanism, switchgear status indication, etc. It can solve the problems of inability to meet different customer needs, poor insulation performance, low efficiency, etc., and achieve good insulation, Easy installation and improved work efficiency

Active Publication Date: 2019-05-14
SHANGHAI LEIYUE AUTOMATIC DEVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing actuators of circuit breakers can only provide a set of fault contacts, which cannot meet the needs of different customers
Existing fault contacts are screw-type installation, complex installation, low efficiency, high cost and poor insulation performance

Method used

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  • Low-voltage circuit breaker double fault contact actuator
  • Low-voltage circuit breaker double fault contact actuator
  • Low-voltage circuit breaker double fault contact actuator

Examples

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Embodiment Construction

[0017] Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent replacements or equivalent transformations fall within the protection scope of the present invention.

[0018] The invention discloses a double-fault contact actuator for a low-voltage circuit breaker, which can reflect the state of a controller. Such as figure 1 and figure 2 As shown, the double-fault contact actuator includes a base plate 1, and a push plate 2 is arranged on the base plate 1. In this embodiment, the shape of the push plate 2 is preferably Z-shaped, and the technical solution does not push The specific shape of the plate is specifically limited, and the shape of the push plate can also be other shapes. The push plate 2 is axially ...

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Abstract

The invention discloses a dual-fault contact actuator of a low-voltage circuit breaker. The dual-fault contact actuator comprises a base plate, wherein a push plate is arranged on the base plate, the central position of the push plate is connected with a base plate shaft, the push plate can rotate around the shaft in a reciprocating mode, a first microswithc and a second microswitch are arranged at the opposite-angle positions of a rotation covering area of the push plate, the microswitches are both clamped on the base plate through buckles, and the push plate can rotate around the shaft to push the two microswitches to actuate and be both in on or off states. The dual-fault contact actuator is additionally provided with a group of actuator fault contacts, so that a user requirement is met; by means of a full-buckled installation structure, the dual-fault contact actuator is more convenient to install, and work efficiency is greatly improved; when the actuator releases, the push plate can provide certain thrust for an assist plate, the assist plate can move more quickly, and releasing time of the breaker is reduced.

Description

technical field [0001] The invention relates to the technical field of low-voltage electrical equipment, in particular to a double-fault contact actuator for a low-voltage circuit breaker. Background technique [0002] Low voltage circuit breaker is also called automatic air switch or automatic air circuit breaker, circuit breaker for short. It is an electrical appliance that not only has the function of manual switch, but also can automatically protect against voltage loss, undervoltage, overload and short circuit. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and can automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. Its function is equivalent to a fuse switch and Combinations such as overheating and underheating relays, and generally do not need to change parts after breaking the fault current, have been widely used. [0003] The low-voltag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/04H01H71/12
CPCH01H71/04H01H71/12
Inventor 曹林吴纪忠朱建高
Owner SHANGHAI LEIYUE AUTOMATIC DEVICE
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