Fast switch with electrode shock absorption damping

Abstract

The invention discloses a fast switch with electrode shock absorption damping. The fast switch comprises a vacuum bubble, a transmission mechanism, a driving mechanism, a spring and a base. The transmission mechanism and the spring are connected between the vacuum bubble and the base. The driving structure can drive the transmission mechanism to enable the transmission mechanism to act on the vacuum bubble to produce opening / closing. According to the fast switch with electrode shock absorption damping, rapid opening and closing are realized by means of the separation design of sector gear transmission and spring damping; the safety of line electrical equipment is protected; possible hazards of re-ignition or heavy breakdown can be avoided; the operation safety of power equipment can be improved; at the same time, the impact of transmission force on a vacuum tube is reduced; the service life of the vacuum tube is effectively protected; the service life of a permanent magnet vacuum switch is greatly improved; static and movable electrode bounce caused by strong impact force can be avoided; heavy breakdown caused by the bounce is avoided; and the contradiction between rapid switchingof the switch and the impact of transmission force is effectively solved.

Description

technical field [0001] The invention relates to the technical field of high-voltage vacuum permanent magnet switches, in particular to a fast switch with electrode shock-absorbing damping. Background technique [0002] At present, the high-voltage vacuum permanent magnet switch in application generally adopts the transmission rod to drive the crank arm and overcomes the deformation of the spring to achieve the closing effect, or adopts the direct acting type to open and close. The closing speed of the former has to be reduced to a certain extent, otherwise a larger transmission force needs to be provided. In this way, the greater closing impact force will cause greater damage to the vacuum bubble, seriously reducing the service life of the vacuum bubble, and frequent bouncing will occur during the closing process. , it is easy to cause the probability of heavy breakdown or re-ignition; the latter is designed to be simple in structure, labor-saving, and can increase speed, bu...

AI Technical Summary

Problems solved by technology

The closing speed of the former has to be reduced to a certain extent, otherwise a larger transmission force needs to be provided. In this way, the greater closing impact force will cause greater damage to the vacuum bubble, seriously reducing the service life of the vacuum bubble, and frequent bouncing will occur during the closing process. , it is easy to cause the probability of heavy breakdown or re-ignition; the latter is designed to be simple in structure, labor-saving, and can increase speed, but it will also produce a large closing impact force and bouncing phenomenon. Such an opening and closing speed and transmission force The conflict of impact has never been well resolved

If the opening and closing speed is not fast enough, heavy breakdown or re-ignition will occur, which will cause serious damage to the insulation of switches and power equipment. If the opening and closing speed is too fast, a relatively large transmission force will be required, and the increase in transmission force will cause Larger impact, greater damage to the vacuum bubbles, reducing the service life of the switch

At present, there is no good method and product to balance the transmission force of the fast switch and reduce the impact of opening and closing.

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