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a circuit breaker

A technology of circuit breaker and transmission connecting rod, which is applied to high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve the problems of small insulation distance of outgoing wires and high overall operating mechanism, so as to reduce the overall height and improve the overall insulation. Safety performance, smooth transmission effect

Active Publication Date: 2018-11-09
TIANJIN PINGGAO INTELLIGENT ELECTRIC +2
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a circuit breaker to solve the technical problems in the prior art that the corresponding main shaft is arranged under the operating mechanism, resulting in a high operating mechanism as a whole, and a small insulation distance between the base and the outgoing line under the solid-sealed pole.

Method used

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Embodiment Construction

[0019] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] The specific embodiment of the circuit breaker provided by the present invention, such as Figure 1 to Figure 3 As shown, the circuit breaker in this embodiment includes a base on which an operating mechanism 6, a transmission device, and three solid-sealed poles 7 are arranged in sequence along the left and right directions, and each solid-sealed pole is respectively equipped with an arc extinguishing pole. In the arc extinguishing chamber, there are moving contacts and corresponding static contacts. The structure of the solid-sealed pole here is the same as that of the prior art. The operating mechanism here is the same as that of the application publication number The structure of the operating mechanism disclosed in the invention patent application of CN104992856A is the same.

[0021] In this embodiment, the base includes an upper pole mount...

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Abstract

The invention relates to a circuit breaker. The circuit breaker comprises a base, wherein an operating mechanism, a transmission device and arc extinguishing chambers are arranged on the base; the operating mechanism is positioned behind the arc extinguishing chambers; the transmission device comprises a rotating main shaft driven by the operating mechanism, and three transmission connecting rods which are arranged corresponding to the three arc-extinguishing chambers in a left-right direction; the transmission connecting rods are in transmission connections with moving contacts of the arc extinguishing chambers respectively; the rotating main shaft is positioned on a front side of the operating mechanism; three output connecting levers which are arranged corresponding to the three arc extinguishing chambers in the left-right direction are coaxially assembled on the rotating main shaft; and the three output connecting levers are in transmission connections with the three transmission connecting rods in a one-to-one correspondence way, so that the rotating main shaft can drive the corresponding transmission connecting rods to rotate through the output connecting levers. The rotation main shaft, the output connecting levers and the transmission connecting rods move forwards, so that the overall height of the operating mechanism and the base can be reduced effectively; the vertical distance between the base and a lower outgoing line of a solid-sealed polar pole is effectively increased; and a high insulating capability is kept. The circuit breaker is suitable for being applied to places which have height requirements on the operating mechanism.

Description

technical field [0001] The invention relates to a circuit breaker. Background technique [0002] High-voltage circuit breakers are the most critical electrical equipment in power systems. As control and protection equipment, they are indispensable in power distribution devices in power plants and substations. For an indoor high-voltage vacuum circuit breaker, it generally includes an operating mechanism, a transmission device, and an arc extinguishing chamber. In the arc extinguishing chamber, there are static contacts and moving contacts correspondingly connected to the transmission device. The operating mechanism on the circuit breaker The spring operating mechanism is mainly used, the driving force is output by the power output shaft of the operating mechanism, and the insulating rod connected to the moving contact of the arc extinguishing chamber is controlled by the transmission device to move up and down, driving the moving contact and the static contact to open and cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/42H01H33/72
CPCH01H33/42H01H33/72
Inventor 王小焕李建兵刘易雄李小钊刘秉杰孙立强于洪宇邱子男
Owner TIANJIN PINGGAO INTELLIGENT ELECTRIC
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