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Vacuum circuit breaker and supporting conductor structure thereof

A technology of vacuum circuit breaker and conductor structure, which is applied to high-voltage air circuit breakers, circuits, electrical components, etc., can solve the problems of inability to release heat and affect the mechanical properties of vacuum interrupters, so as to improve the natural heat exchange capacity and ensure mechanical characteristics and insulation characteristics, the effect of increasing the heat dissipation area

Pending Publication Date: 2021-12-03
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a supporting conductor structure of a vacuum circuit breaker to solve the technical problem in the prior art that the heat on the conductor connected to the moving and static contacts cannot be released, which affects the mechanical characteristics and insulation characteristics of the vacuum interrupter; A vacuum circuit breaker using the supporting conductor structure is provided to solve the above technical problems

Method used

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  • Vacuum circuit breaker and supporting conductor structure thereof
  • Vacuum circuit breaker and supporting conductor structure thereof
  • Vacuum circuit breaker and supporting conductor structure thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like figure 1 and figure 2As shown, the main components of the supporting conductor structure of the vacuum circuit breaker (hereinafter referred to as the supporting conductor structure 100) include a conductive support cylinder 101, a lower conductive seat 102 and a spiral fin 103, and the conductive support cylinder 101 and the lower conductive seat 102 are both conductor.

[0041] The conductive support cylinder 101 is a cylinder that penetrates up and down. The upper end is used to support the vacuum interrupter upward. When in use, the conductive rod at the movable end penetrates into the conductive support cylinder 101. Usually, there is a gap between the conductive rod at the movable end and the conductive support cylinder 101. The spring contact finger ensures the conductive connection between the conductive support cylinder 101 and the conductive rod at the moving end. The lower conductive base 102 is arranged at the lower end of the conductive support cyli...

specific Embodiment 2

[0047] like image 3 As shown, the difference from Embodiment 1 is that in Embodiment 1, the heat dissipation fins are spiral fins. In this embodiment, the heat dissipation fins are vertical fins 106, and the vertical fins 106 are along the The axial extension of 101, the specific extension length can be determined according to the required heat dissipation capacity, and there are a plurality of vertical fins 106 arranged at intervals along the circumference of the conductive support cylinder 101, the number of which is changed according to the actual situation, but at least there are two. The heat exchange capacity of the conductive support cylinder 101 can be improved by adding vertical fins 106 . The structure of the lower conductive base 102 and the radial hole 104 is the same as that of the first embodiment.

specific Embodiment 3

[0049] like Figure 4 and Figure 5 As shown, the difference from Embodiment 1 is that in Embodiment 1, the heat dissipation fins are spiral fins. In this embodiment, the heat dissipation fins are annular fins 107, and the annular fins 107 are the same Shaft arrangement, the annular fins 107 are arranged at intervals along the axial direction of the conductive support cylinder 101, and the number varies according to actual conditions, but there are at least two. The structure of the lower conductive base 102 and the radial hole 104 is the same as that of the first embodiment.

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Abstract

The invention belongs to the technical field of vacuum switches, and relates to a vacuum circuit breaker and a supporting conductor structure thereof. The supporting conductor structure comprises a conductive supporting cylinder and a lower conductive seat arranged at the bottom of the conductive supporting cylinder, wherein the conductive supporting cylinder is used for being conductively connected with a moving end conductive rod; cooling fins are arranged on the outer portion of the conductive supporting cylinder so that heat on the conductive supporting cylinder can be conducted out. After the cooling fins are added, the heat dissipation area can be increased, the natural heat exchange capacity and the radiation heat exchange capacity between the conductive supporting cylinder and the outside are improved, and heat on the conductive supporting cylinder can be rapidly conducted out, and the conductive supporting cylinder is connected with moving and static contacts, so that the temperature of the moving and static contacts can be reduced after heat on the conductive supporting cylinder is conducted out, plastic deformation of the moving and static contacts in the opening and closing process is avoided, and the mechanical characteristic and the insulation characteristic of a vacuum arc-extinguishing chamber are ensured.

Description

technical field [0001] The invention belongs to the technical field of vacuum switches, and in particular relates to a vacuum circuit breaker and its supporting conductor structure. Background technique [0002] Vacuum circuit breakers are widely used in medium and low voltage AC fields due to their advantages such as maintenance-free, long life, and excellent insulation performance. Vacuum circuit breakers usually include an outer insulating sleeve and a vacuum interrupter. The vacuum interrupter is the core component of the vacuum circuit breaker to realize current interruption. The vacuum interrupter is usually sealed in the outer insulating sleeve and is located under the vacuum interrupter. A supporting conductor structure is arranged. Among them, the supporting conductor structure is shown in the Chinese invention patent with the authorized announcement number CN105374597B, which includes a conductive support tube (ie, the lower conductive support in the patent) locat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/66H01H33/664H01H33/666H01H9/52
CPCH01H33/66H01H33/666H01H33/664H01H9/52
Inventor 赵晓民刘沣李旭旭马慧何创伟刘志远刘庆杨帆马朝阳孙广雷龚炳正毕迎华胡锦汐李永林刘文魁关昕李一林庞素敏赵帆
Owner PINGGAO GRP
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