CN201185152Y

CN201185152Y - Vacuum circuit-breaker

Info

Publication number: CN201185152Y
Application number: CNU200820107847XU
Authority: CN
Inventors: 陈成明
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-24
Filing date: 2008-03-24
Publication date: 2009-01-21
Anticipated expiration: 2018-03-24

Abstract

The utility model relates to a vacuum breaker which comprises an operation mechanism box and three sealed pole rods; the three sealed pole rods are vertically arranged on the operation mechanism box in parallel; the outside of the movable conductive end of a vacuum arc extinguish chamber is provided with a sliding conductive terminal; a spring sensing finger is arranged in the sliding conductive terminal; the silicon rubber at the lower ends of the sealed pole rods is provided with a salient to an epoxy resin organism to form a moistureproof shoulder; the lower end of the epoxy resin organism is provided with an annular seal slot. The vacuum breaker is compactly mounted and can be expanded to a higher voltage grade; besides, the expandability and the low-closing bouncing performance as well as mechanical performance of the vacuum breaker are high.

Description

Vacuum circuit-breaker

Technical field

The utility model relates to the high pressure or the high-current switch of band arc extinguishing or flash guard, a kind of specifically vacuum circuit-breaker.

Background technology

Distrbution network progressively adopts power supply of bilateral power supply and ring network power supply scheme both at home and abroad at present, and is more and more harsher to the requirement of panel switches.Existing vacuum circuit-breaker maintenance requirement height, weatherability is poor, can not expand to the vacuum circuit-breaker of high its one-level, can not satisfy the compact requirement.

The utility model content

The purpose of this utility model is installed compact and can be expanded paramount one electric pressure and the performance of its extensibility and low closing rebound performance and the vacuum circuit-breaker of high mechanical endurance thereof for providing on a kind of post.

The technical scheme that realizes the foregoing invention purpose is as follows:

Vacuum circuit-breaker, comprise operating mechanism case and three poles, described pole comprises the inlet wire conducting rod, the vacuum interrupter that last inlet wire conducting rod lower end connects, the vacuum interrupter moving conductive end of vacuum interrupter lower end, the vacuum interrupter Soft Roll, the epoxy resin human body, the silicon rubber full skirt of epoxy resin human body outer surface, current transformer on following outlet conducting rod and the following outlet conducting rod, operating mechanism in the insulated tension pole of described vacuum interrupter lower end and the operating mechanism case is connected, described three poles vertically are installed on the operating mechanism case side by side, the outside of described vacuum interrupter moving conductive end is provided with the sliding conduction terminal, be provided with spring touch finger in the sliding conduction terminal, the silicon rubber of described pole lower end has the projection in the epoxy resin human body, form moistureproof shoulder, the lower end of described epoxy resin human body has annular seal groove.

Described insulated tension pole comprises bolt, fastening adjustment bolt, goes up the steel cap, steel cap, the epoxy resin fiberglass plug and the insulated tension pole outer silicone overcoat of bolt and following draw bolt in draw bolt, connections down down, described fastening adjustment bolt lower surface is interior concave ball shape, described go up have on the bolt with fastening adjustment bolt on the corresponding outer spherical projection of interior concave ball shape, the described bolt of going up is provided with the butterfly spring, and described butterfly spring is positioned at the bottom of spherical protrusions.

One end of " 7 " the word connecting lever in described insulated tension pole lower end and the operating mechanism case links to each other, and the other end of " 7 " word connecting lever links to each other with draw bar, is provided with a permanent magnet mechanism between the AB phase of described operating mechanism case inherence.

The utility model is installed compact, can expand paramount one electric pressure, and its extensibility and low closing rebound performance and mechanical endurance height.

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is the left view of Fig. 1

Fig. 3 is the structure chart of pole of the present utility model

Fig. 4 is an insulated tension pole structure chart of the present utility model

Fig. 5 is the structure chart of operating mechanism case of the present utility model

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Extremely shown in Figure 5 as Fig. 1, vacuum circuit-breaker, comprise operating mechanism case and three poles, described pole comprises the inlet wire conducting rod, the vacuum interrupter that last inlet wire conducting rod lower end connects, the vacuum interrupter moving conductive end of vacuum interrupter lower end, the vacuum interrupter Soft Roll, the epoxy resin human body, the silicon rubber full skirt of epoxy resin human body outer surface, current transformer on following outlet conducting rod and the following outlet conducting rod, operating mechanism in the insulated tension pole of described vacuum interrupter lower end and the operating mechanism case is connected, described three poles vertically are installed on the operating mechanism case side by side, the outside of described vacuum interrupter moving conductive end is provided with the sliding conduction terminal, be provided with spring touch finger in the sliding conduction terminal, the silicon rubber of described pole lower end has the projection in the epoxy resin human body, form moistureproof shoulder, the lower end of described epoxy resin human body has annular seal groove.

Below in conjunction with embodiment characteristics of the present utility model are elaborated:

1. adopt bottom seal ring piece and moistureproof shoulder, can expand the scheme that cooperates sleeve pipe, improved the weather resistance of product; Creepage distance can increase, and has realized extending to the more requirement of voltage levels under the prerequisite that built-in electrical insulation clear distance and creepage distance need not considered to have a surplus with the vacuum interrupter insulation property.

2. the following outlet conducting end that adopts T2Y copper to process, but the anti-bakie of key sealing strip and sliding conduction terminal add the use of spring touch finger, contact and area of dissipation have been increased, improved conductance, resin is gone into the problem of conductive region when having improved APG technology, and it is that a disk forms the parallel electric field topology of having optimized of face face with bottom support face that pole integral body is sealed into the posterior end upper thread.

3. adopt the insulated tension pole of band butterfly spring and ball-type face contact draw bolt integral die moulding, disappearing or having reduced is driven the lateral stressed of thing, and has reduced the suffered bending force of drawing pull bar, has improved whole mechanical endurance.

4. adopt the mode of transfer force of permanent magnet mechanism type of drive and new on-pole switch different from the past, make to reach mechanical key point part and reduce the notion that is equal to the maintenance point minimizing.Simplified transmission mechanism, reduced manufacturing cost and improved whole mechanical endurance.

Claims

1. vacuum circuit-breaker, comprise operating mechanism case and three poles, described pole comprises the inlet wire conducting rod, the vacuum interrupter that last inlet wire conducting rod lower end connects, the vacuum interrupter moving conductive end of vacuum interrupter lower end, the vacuum interrupter Soft Roll, the epoxy resin human body, the silicon rubber full skirt of epoxy resin human body outer surface, current transformer on following outlet conducting rod and the following outlet conducting rod, operating mechanism in the insulated tension pole of described vacuum interrupter lower end and the operating mechanism case is connected, it is characterized by: described three poles vertically are installed on the operating mechanism case side by side, the outside of described vacuum interrupter moving conductive end is provided with the sliding conduction terminal, be provided with spring touch finger in the sliding conduction terminal, the silicon rubber of described pole lower end has the projection in the epoxy resin human body, form moistureproof shoulder, the lower end of described epoxy resin human body has annular seal groove.

2. vacuum circuit-breaker according to claim 1, it is characterized by: described insulated tension pole comprises bolt, fastening adjustment bolt, goes up the steel cap, steel cap, the epoxy resin fiberglass plug and the insulated tension pole outer silicone overcoat of bolt and following draw bolt in draw bolt, connections down down, described fastening adjustment bolt lower surface is interior concave ball shape, described go up have on the bolt with fastening adjustment bolt on the corresponding outer spherical projection of interior concave ball shape, the described bolt of going up is provided with the butterfly spring, and described butterfly spring is positioned at the bottom of spherical protrusions.

3. vacuum circuit-breaker according to claim 1, it is characterized by: an end of " 7 " the word connecting lever in described insulated tension pole lower end and the operating mechanism case links to each other, the other end of " 7 " word connecting lever links to each other with draw bar, is provided with a permanent magnet mechanism between the inherent AB phase of described operating mechanism case.