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High-pressure vacuum breaker

A vacuum circuit breaker and high-voltage technology, which is applied to high-voltage air circuit breakers, high-voltage/high-current switches, circuits, etc., can solve the problems of high difficulty in assembly process and large overall volume, and achieve simplified assembly structure and installation methods, reduced Overall volume, increased stability effect

Active Publication Date: 2010-11-24
HONGXIU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the existing vacuum circuit breakers still have the disadvantages of high difficulty in assembly process and large overall volume, and their structures need to be optimized urgently.

Method used

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Embodiment 1

[0031] Figure 1 to Figure 8 A first embodiment of the invention is shown in which, figure 1 It is a structural schematic diagram of the present invention; figure 2 for figure 1 A schematic diagram of the three-dimensional structure of the vacuum arc extinguishing mechanism, the support and the connecting rod in the high-voltage vacuum circuit breaker shown in the connection state; image 3 for figure 2 An exploded schematic of the mechanism shown; Figure 4 for figure 2 A schematic diagram of a three-dimensional structure of the mechanism shown when viewed from another angle; Figure 5 for figure 2 A schematic diagram of the three-dimensional structure of the shown mechanism after the support is removed; Image 6 for Figure 5 Front view of the institution shown; Figure 7 for figure 1 A schematic diagram of a three-dimensional structure of the support in the high-voltage vacuum circuit breaker shown; Figure 8 for Figure 7 A schematic diagram of the three-di...

Embodiment 2

[0049] This embodiment is basically the same as Embodiment 1, except that the housing 1 is a sealed housing, and the housing 1 is filled with gas for increasing electrical insulation performance. Nitrogen is charged in this embodiment, and inert gases such as sulfur hexafluoride can also be charged in practice. In this embodiment, the overall volume of the switch is further reduced by improving the electrical insulation performance between the circuit devices of each phase.

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Abstract

The invention discloses a high-pressure vacuum breaker. The breaker comprises a shell, an operation mechanism and three vacuum arc-extinguishing mechanisms, wherein the operation mechanism is arranged in the shell; each vacuum arc-extinguishing mechanism comprises a vacuum arc-extinguishing chamber, a movable conducting rod, a drive rod and a static conducting rod; the vacuum arc-extinguishing chamber is provided with a movable connection terminal and a static connection terminal; the operation mechanism comprises a drive main shaft and crankarm components; each crankarm component comprises aconnecting rod and a supporting part; the supporting part is provided with an installation part and a spacing hole to fix and install the supporting part per se; a drive hole is formed on the drive rod; a spacing axle hole is formed in the middle of the connecting rod; a drive axle hole is formed at the tail end outside the connecting rod; one end of the drive rod is fixedly connected with the movable connecting terminal, while the other end is connected with the movable conducting rod; the middle part of the connecting rod is in rotatable connection with the supporting part through a spacingpin roll; and the tail end outside the connecting rod is in rotatable connection with the drive rod through a drive pin roll. The high-pressure vacuum breaker has the advantages of simplifying the installation structure and effectively reducing the whole volume of a switch.

Description

technical field [0001] The invention belongs to the technical field of high-voltage switch structure design, and in particular relates to a high-voltage vacuum circuit breaker. Background technique [0002] Sulfur hexafluoride is the strongest of the six greenhouse gases specified in the Kyoto Protocol. Its global warming coefficient is 23,900 times that of carbon dioxide; its lifetime in the atmosphere can be as long as 3,200 years. So the current vacuum circuit breaker has become the mainstream of development. [0003] Vacuum circuit breakers have the advantages of environmental friendliness, high product reliability, small maintenance workload, no risk of fire and explosion, and high product technical performance, and are currently mainstream products. However, most existing vacuum circuit breakers still have the disadvantages of high difficulty in assembly process and large overall volume, and their structures need to be optimized urgently. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): H01H33/66H01H33/666
Inventor 苏杭郑文秀
Owner HONGXIU ELECTRIC
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