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Buffer device, operating mechanism and top-speed on-off high-voltage switch

A buffer device and operating mechanism technology, which is applied in high-voltage/high-current switches, electric switches, high-voltage air circuit breakers, etc., can solve the problems of limited installation position of buffer devices, heavy load on transmission components, and easy damage

Active Publication Date: 2021-04-27
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 buffer device, which can solve the problem that the installation position of the existing buffer device is limited due to the structural characteristics, and it is generally installed next to the power output device of the operating mechanism, which leads to the gap between the power output device and the switch fracture. The technical problem that the transmission element is easily damaged due to excessive load

Method used

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  • Buffer device, operating mechanism and top-speed on-off high-voltage switch
  • Buffer device, operating mechanism and top-speed on-off high-voltage switch
  • Buffer device, operating mechanism and top-speed on-off high-voltage switch

Examples

Experimental program
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Effect test

specific Embodiment 1

[0083] Specific embodiment 1 of the buffer device of the present invention;

[0084] The buffer device of the present invention mainly includes a magnetic field generating unit 15 and a conductor unit, both of which are arranged correspondingly, so that when the relative movement occurs between the two, the conductor unit moves to cut the magnetic field lines in the magnetic field generated by the corresponding magnetic field generating unit 15, and then can Eddy currents are formed in the conductor elements. When one of the magnetic field generating unit 15 and the single unit is fixedly installed on the operating mechanism 3 or a transmission element of the high-voltage switch, and the other is fixed on the fixed part of the operating mechanism 3 or the high-voltage switch, when When the magnetic field generating unit 15 and the conductor unit move relative to each other, the conductor unit generates eddy current when cutting the magnetic induction line, and the correspondin...

specific Embodiment 2

[0099] The main difference between it and Embodiment 1 is that in Embodiment 1, the magnetic field generating unit adopts a coil unit, and the magnetic field needs to be energized before generating a magnetic field, which requires consideration of wiring when laying out, which is not suitable for application in some occasions. In this embodiment, a permanent magnet can be used as the magnetic field generating unit, and the permanent magnet is fixedly installed at the end of the side plate structure. The permanent magnet and the inner wall of the slot of the elongated conductor form a gap. , so that the relative movement of the strip-shaped conductor to cut the magnetic field line can also form an eddy current braking structure to realize the buffer braking of the direct-acting transmission rod.

specific Embodiment 3

[0101] It differs from Embodiment 1 mainly in that: in Embodiment 1, the connector adopts a fixing sleeve, and an additional locking bolt is required to be fixed. In this embodiment, the connecting piece is a hoop, and the two split parts of the hoop are fitted and fixed on the direct-acting transmission rod, and are connected as a whole by bolts.

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Abstract

The invention relates to a buffer device, an operating mechanism and a top-speed on-off high-voltage switch. The buffer device comprises a connecting piece; a magnetic field generation unit and a conductor, wherein the conductor unit and the magnetic field generation unit are correspondingly arranged, so that when the magnetic field generation unit and the conductor unit relatively move, the conductor unit does magnetic induction line cutting motion in a magnetic field generated by the corresponding magnetic field generation unit. When the transmission element drives the connecting piece to move in a set stroke, the conductor units generate eddy currents when cutting magnetic induction lines, and the corresponding conductor units and the magnetic field generating units are matched to form an eddy current braking structure which is used for hindering relative movement of the transmission element and the fixed part and achieving buffering braking in the opening and / or closing process. The eddy current braking structure formed by matching the magnetic field generating unit and the conductor unit is used for realizing buffering braking on the transmission elements, the composition structure is simple, the adaptability is high, the eddy current braking structure can be arranged corresponding to each transmission element according to actual requirements, and the mounting position is not limited.

Description

technical field [0001] The invention belongs to the technical field of high-voltage switches, and in particular relates to a buffer device, an operating mechanism and a high-speed breaking high-voltage switch. Background technique [0002] Extremely fast breaking of the high-voltage switch requires the arc extinguishing chamber to complete the opening process within 10ms to extinguish the arc. In order to realize the extremely fast breaking of the high-voltage switch, during this process, the average speed of the transmission rod in the operating mechanism can reach 30m / s , the acceleration in the process is even as high as 3000m / s², and the operating mechanism needs to have better impact resistance and higher mechanical reliability. [0003] At present, the operating mechanism is equipped with a buffer device, such as a hydraulic buffer device or a spring buffer device. The hydraulic buffer device includes a stepped piston and a buffer sleeve. When the stepped piston moves,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/02H01H3/60H01H33/42
CPCH01H33/02H01H3/60H01H33/42
Inventor 韩国辉钟建英张博谭盛武姚永其王之军张豪刘亚培杜迎乾李禹生安影谢丽丹陆静
Owner PINGGAO GRP