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Mechanical switch switching-off action mechanism

An action mechanism and mechanical switch technology, applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of reducing the reliability of the operating mechanism and affecting the safety of DC power transmission, so as to ensure safety, fast and accurate action, and avoid poor reliability in use Effect

Inactive Publication Date: 2018-11-30
国网山东省电力公司滨州市沾化区供电公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the above-mentioned opening operating mechanism needs to use the closing holding spring 4, the return spring 12 and the hook-shaped rod holding spring 7 after the opening is put in place. The use of a large number of springs will reduce the reliability of the entire operating mechanism, and then will Affecting the safety of direct current transmission

Method used

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  • Mechanical switch switching-off action mechanism
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Embodiment Construction

[0018] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0019] like figure 2 As shown, the mechanical switch opening action mechanism of the present invention includes an upper busbar 1 and a lower busbar 2, and an upper static contact 3 is connected to one side of the upper busbar 1. Similarly, on the lower busbar 3 and the upper The lower static contact 4 is connected to the same side of the busbar 1, and a connecting rod 7 is placed next to the side where the upper static contact 3 and the lower static contact 4 are arranged, and the upper and lower parts of the connecting rod 7 are respectively connected with upper moving The contact 5 and the lower moving contact 6 are provided with a connecting rod head 8 at the lower end of the connecting rod 7, and the connecting rod head 8 is sleeved on the crank 9, and the crank 9 is driven by a motor 10 to rotate.

[0020] When the mechanical switch is i...

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Abstract

The invention relates to a mechanical switch switching-off action mechanism, belongs to the technical field of direct current transmission. The mechanical switch switching-off action mechanism comprises an upper busbar and a lower busbar, wherein one side of the upper busbar is connected with an upper static contact; a lower static contact is connected to a position, on the same side as the upperbusbar, of the lower busbar; the upper static contact and the lower static contact are matched with an upper moving contact and a lower moving contact located on a connecting rod respectively; a connecting rod head is arranged at the lower end of the connecting rod; the connecting rod head is arranged on a crank in a sleeved mode; and the crank is connected with a motor. According to the mechanism, a crank connecting rod structure is used for driving the moving contacts to act, so that the use reliability of the whole mechanism can be ensured while rapid switching-off and switching-on is realized.

Description

technical field [0001] The invention relates to an opening action mechanism of a mechanical switch, which belongs to the technical field of direct current transmission. Background technique [0002] At present, with the reduction of traditional primary energy, clean energy such as wind energy and solar energy has been continuously proposed and has been increasingly valued. However, there are technical obstacles in the integration of clean energy into traditional power grids. The circuit breaker can quickly create a current zero crossing point in the DC system and cut off the rapidly rising fault current; absorb the energy stored in inductive elements such as smoothing reactors during the breaking process; and limit the electromagnetic energy conversion when breaking the fault current causing overvoltage. [0003] There are three main types of common DC circuit breakers, including all-solid-state DC circuit breakers, hybrid DC circuit breakers and mechanical DC circuit break...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H71/43H01H71/70
CPCH01H71/10H01H71/43H01H71/70
Inventor 刘国勋耿刚李群王涛张伊智李飞宋荣伟杨守清张楠李建强李九红贾耿波王文强王国凯
Owner 国网山东省电力公司滨州市沾化区供电公司
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