Electric switch provided with separate arc-extinguishing device

Abstract

The invention discloses an electric switch provided with a separate arc-extinguishing device. The technical problem to be solved by the invention is to provide an electric switch provided with a separate arc-extinguishing device, having the advantages of simple structure, small size and stable performance. The electric switch provided with the separate arc-extinguishing device comprises a base, acircuit breaker and a connecting rod assembling mechanism. By arranging the unique connecting rod assembling mechanism, the rotating force applied on a transmission shaft can be converted into the vertical force on a pull rod. Therefore, the electric switch of the invention has the characteristics of simple structure, small size and high connection reliability of each part.

Description

technical field

[0001] The invention relates to an electric switch, in particular to an electric switch with an arc extinguishing device alone. Background technique

[0002] The electric switch with arc extinguishing device alone in the fully enclosed and fully insulated SF6 ring network cabinet applied to the power system, such as a V-type switch, generally includes several main parts such as an interlocking device, a vacuum arc extinguishing device and an insulating device. The arc extinguishing principle of the vacuum arc extinguishing device is to seal the contacts in a high vacuum arc extinguishing chamber, and use the high insulation performance of the vacuum to extinguish the arc. The interlocking device generally includes the interlocking between two or more parts of the contact operating mechanism, which ensures that the moving contact in the arc extinguishing chamber can reciprocate up and down to achieve contact with the static contact. At present, there are vari...

Examples

Embodiment 1

[0016] Such as figure 1 As shown, the electric switch with an arc extinguishing device alone in the present invention includes a base frame 101 , three circuit breakers 102 , and a connecting rod assembly mechanism 103 .

[0017] Such as figure 2 As shown, each circuit breaker 102 includes a pull rod 104, an insulating pull rod 105, a moving conductive rod 106, a vacuum interrupter 107 and a vacuum interrupter moving contact 108 inside the vacuum interrupter, a vacuum interrupter static contact 109, and a contactor Small parts, isolating switch mechanism. Pull rod 104, insulating pull rod 105, moving conductive rod 106, and vacuum chamber interrupter movable contact 108 are connected sequentially from top to bottom, wherein the movable conductive rod 106, vacuum interrupter movable contact 108, and vacuum interrupter static contact 109 is located in the vacuum interrupter 107, and the upper end of the pull rod 104 is opened with a longitudinal sliding hole 114 along the rad...

technical field

[0001] The invention relates to an electric switch, in particular to an electric switch with an arc extinguishing device alone. Background technique

[0002] The electric switch with arc extinguishing device alone in the fully enclosed and fully insulated SF6 ring network cabinet applied to the power system, such as a V-type switch, generally includes several main parts such as an interlocking device, a vacuum arc extinguishing device and an insulating device. The arc extinguishing principle of the vacuum arc extinguishing device is to seal the contacts in a high vacuum arc extinguishing chamber, and use the high insulation performance of the vacuum to extinguish the arc. The interlocking device generally includes the interlocking between two or more parts of the contact operating mechanism, which ensures that the moving contact in the arc extinguishing chamber can reciprocate up and down to achieve contact with the static contact. At present, there are vari...

Examples

Embodiment 1

[0016] Such as figure 1 As shown, the electric switch with an arc extinguishing device alone in the present invention includes a base frame 101 , three circuit breakers 102 , and a connecting rod assembly mechanism 103 .

[0017] Such as figure 2 As shown, each circuit breaker 102 includes a pull rod 104, an insulating pull rod 105, a moving conductive rod 106, a vacuum interrupter 107 and a vacuum interrupter moving contact 108 inside the vacuum interrupter, a vacuum interrupter static contact 109, and a contactor Small parts, isolating switch mechanism. Pull rod 104, insulating pull rod 105, moving conductive rod 106, and vacuum chamber interrupter movable contact 108 are connected sequentially from top to bottom, wherein the movable conductive rod 106, vacuum interrupter movable contact 108, and vacuum interrupter static contact 109 is located in the vacuum interrupter 107, and the upper end of the pull rod 104 is opened with a longitudinal sliding hole 114 along the rad...

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