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Circuit breaker with compact contact structure

A technology for circuit breakers and containers, which is applied to high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve the problems that the air jet cylinder 41 and the moving nozzle 43 cannot be matched or assembled, and achieve enhanced reduction and assembly accuracy. , The effect of enhancing processing cost and reducing quantity

Inactive Publication Date: 2015-03-18
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0052] This is because when the assembly size of the first joint surface 41a between the air-jet cylinder 41 and the moving main contact 42 is inaccurate, the coupling portion 43a of the air-jet cylinder 41 and the moving nozzle 43 cannot match each other, thereby failing to assemble.
[0053] In addition, when the fitting dimensions of the first joint surface 41a do not match each other, it may cause problems in ensuring the conductivity of the circuit breaker as a conductive contact surface.

Method used

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  • Circuit breaker with compact contact structure
  • Circuit breaker with compact contact structure
  • Circuit breaker with compact contact structure

Examples

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Embodiment Construction

[0093] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, to the extent that those skilled in the art to which the present disclosure belongs can easily implement the present disclosure.

[0094] Attached here image 3 It is a schematic diagram showing the internal structure of the circuit breaker according to the present disclosure.

[0095] The present disclosure relates to a circuit breaker having a close contact assembly structure.

[0096] Such as image 3 As shown, the circuit breaker according to the present disclosure may generally include a container 10, a fixed part 20 and a movable part 30.

[0097] The container 10 has an accommodation space formed therein to accommodate and protect the fixed part 20 and the movable part 30 in the container 10.

[0098] The fixing part 20 is fixed and provided at one side inside the container 10 (based on the left side of the drawing).

[0099] The fixed part 2...

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PUM

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Abstract

The present disclosure relates to a circuit breaker having a compact contact assembly structure, including a stationary portion; and a movable portion to be contact with or to be separated from the stationary portion, wherein the movable portion includes a puffer cylinder configured to temporarily store a compressible fluid; a moving main contact assembled to an end of the puffer cylinder; and a moving nozzle inserted into the moving main contact , and the moving main contact includes an internal protrusion protruded in a radial direction and separated in a circumferential direction from an inner surface thereof, and the moving nozzle includes an external protrusion protruded in a radial direction and separated in a circumferential direction on an external surface thereof, and the internal and external protrusions are alternately coupled to the puffer cylinder, respectively, by a fastening member along the circumferential direction.

Description

Technical field [0001] The present disclosure relates to a circuit breaker, which is used to extinguish an arc by using a compressed insulating gas when a fault current occurs in a power system, thereby blocking the fault current. Background technique [0002] Gas-insulated switchgear (GIS) can convert load current for the power system under normal use. [0003] Moreover, the gas-insulated switchgear is a device that can safely switch and protect the circuit even under abnormal conditions such as fault current, short-circuit current, or the like. [0004] The gas insulated switchgear can be equipped with a circuit breaker, an isolating switch, a grounding switch, an instrument transformer, a lightning arrester, a bus bar, etc. in a sealed metal container filled with insulating gas SF6. [0005] Among the internal components of the gas insulated switchgear, the circuit breaker is a device that can quickly and safely block the fault current to protect the system and various power device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/72
CPCH01H33/7015H01H33/88H01H33/7076H01H33/7038H01H33/66
Inventor 刘晨歆
Owner LSIS CO LTD
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