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Isolation switch and moving contact thereof

A moving contact and motion technology, applied in electrical switches, air switch parts, contacts, etc., can solve the problems of short life and poor buffering effect of the buffer structure, so as to improve the service life, solve the poor buffering effect, The effect of reducing the impact force

Active Publication Date: 2018-01-12
XUJI GRP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a movable contact to solve the problem of short service life caused by the poor buffering effect of the buffer structure when the current movable contact is used; in addition, the purpose of the present invention is to provide a isolating switch

Method used

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  • Isolation switch and moving contact thereof
  • Isolation switch and moving contact thereof

Examples

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Embodiment 2

[0038] The specific embodiment 2 of the isolating switch of the present invention, the difference between the isolating switch in this embodiment and the specific embodiment 1 of the above-mentioned isolating switch is only: as figure 2 As shown, the second groove may not be provided, and the second conductive portion 32 is provided with an insertion portion 324 inserted into the first groove 314 , and the insertion portion 324 and the first groove 314 enclose the gas buffer chamber 34 .

Embodiment 3

[0039] The specific embodiment 3 of the isolating switch of the present invention, the difference between the isolating switch in this embodiment and the above-mentioned specific embodiment 1 of the isolating switch is that the buffer structure only includes a gas buffer chamber.

Embodiment 4

[0040] The specific embodiment 4 of the isolating switch of the present invention, the difference between the isolating switch in this embodiment and the above-mentioned specific embodiment 1 of the isolating switch is that the buffer structure only includes disc springs.

[0041] The specific embodiment of the moving contact of the present invention, the structure of the moving contact in this embodiment is the same as the structure of the moving contact described in the specific embodiment 1 or 2 or 3 or 4 of the above-mentioned isolating switch, and will not be repeated here. .

[0042] In other embodiments of the isolating switch and its movable contact of the present invention, the body and the contact body of the above-mentioned movable contact can be an integral structure; the above-mentioned fixed sleeve can be arranged on the second conductive part, and the corresponding first conductive part The structure is adaptively changed so that the second conductive part can d...

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PUM

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Abstract

The invention relates to the field of electrical appliance switches and particularly relates to an isolation switch and a moving contact thereof. The moving contact includes a first conductive portionand a second conductive portion, the first conductive portion and the second conductive portion are in fitting cooperation and conductive contact, a buffer structure is arranged between the first conductive portion and the second conductive portion, the second conductive portion pushes the first conductive portion to move during the closing of the buffer structure, the second conductive portion is further provided with a stopping structure in the stopping cooperation with the first conductive portion in the direction far away from the first conductive portion, and the second conductive portion drives the first conductive portion to move during the opening of the stopping structure. Because the buffer structure starts to compress after the first conductive portion of the moving contact isin conductive contact of the static contact, the closing speed of the isolation switch cannot be slowed down, the impact energy of the moving contact and the mating contact is absorbed through the buffer structure, the impact force between the moving contact and the mating contact is reduced, and the problem that the moving contact in the prior is short in service life due to the bad buffer effectof the buffer structure.

Description

technical field [0001] The invention relates to the field of electrical switches, in particular to an isolating switch and a moving contact thereof. Background technique [0002] The DC isolating switch is one of the key supporting equipment of the DC circuit breaker. Accelerating the use of the DC isolating switch and the DC circuit breaker will help to improve the flexibility and reliability of distributed new energy power intervention and DC line switching. The current high-speed In the structure design of the moving contact, in order to reduce the impact force between the moving contact and the static contact during the closing process, a buffer structure is usually set between the moving contact and the base or between the insulating rod and the moving contact. For buffering, the buffering structure can be a spring, buffering cavity and other structures. Although the arrangement of this buffering structure can reduce the impact force between the moving contact and the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/02H01H1/50
CPCH01H1/50H01H31/026
Inventor 遵明伟何荣涛何彭宋海明袁传镇李明道李宪普吕东旭郅娇娇崔宇王坤
Owner XUJI GRP