CN105655208A

CN105655208A - Zero-flashover circuit breaker

Info

Publication number: CN105655208A
Application number: CN201610094388.5A
Authority: CN
Inventors: 陈炯
Original assignee: Yamamoto Welding Bellows (shanghai) Co Ltd
Current assignee: Yamamoto Welding Bellows (shanghai) Co Ltd
Priority date: 2016-02-19
Filing date: 2016-02-19
Publication date: 2016-06-08

Abstract

The invention discloses a zero-flashover circuit breaker. The zero-flashover circuit breaker comprises a base, wire connecting terminals, a vacuum arc-extinguishing chamber, an operating mechanism, a rotating main shaft, a thermoelement and an instantaneous release, wherein the wire connecting terminals comprise a first wire connecting terminal and a second wire connecting terminal, the vacuum arc-extinguishing chamber is positioned under the first wire connecting terminal and comprises an insulating shell, a conductive system, a shielding system, a corrugated pipe, a first contact and a second contact, and the rotating main shaft and the thermoelement are arranged at the left side and the right side of the operating mechanism. The zero-flashover circuit breaker has a reasonable design, is in modular assembly, has good detachability and can be debugged conveniently; due to the zero-flashover circuit breaker, the size of the whole power distribution cabinet is reduced, the product volume is reduced, and the occupied area is reduced; the zero-flashover circuit breaker uses the vacuum arc-extinguishing chamber for realizing complete zero flashover and the use safety of the circuit is ensured; and the zero-flashover circuit breaker solves the problem of safety utilization of electric power in flammable and combustible environments and high-corrosiveness environments, is suitable for occasions such as coal mines, oil fields, chemical plants, ordnance factories and the like, and has good using effect.

Description

A kind of zero arcing chopper

Technical field

The present invention relates to a kind of chopper, specifically a kind of zero arcing chopper.

Background technology

Chopper refer to the electric current referring to close, carry and cut-off under normal loop condition and can close, carrying and the switching device of electric current that cut-offs under abnormal loop condition within the time of regulation. Chopper is divided into primary cut-out and low-voltage circuit breaker by its use scope, generally more than 3kV is called High-Voltage Electrical Appliances. Chopper can be used to distribute electric energy; infrequently start asynchronous motor; power circuit and motor etc. are carried out protection, when there is serious overloads or the fault such as short-circuit and under-voltage when them can automatic shutdown circuit, its function is equivalent to Fuse switch and crosses the combination of underheat relay etc. And after disjunction fault current, generally need not change parts. At present, obtain a wide range of applications. Current existing chopper reduces spilling of arcing typically via arc extinguishing grid pieces, and this technology decreases arcing to a certain extent, but can not accomplish absolute zero arcing, inevitably has the naked light creep age distance of 100-200mm when short circuit. Although having have employed some to reduce arcing device, but in some inflammable and explosive occasions, having the hidden danger causing fire, these are all that user brings inconvenience.

Summary of the invention

It is an object of the invention to provide a kind of zero arcing chopper, with the problem solving to propose in above-mentioned background technology.

For achieving the above object, the present invention provides following technical scheme:

A kind of zero arcing chopper, including base, binding post, vacuum interrupter, operating mechanism, rotating spindle, thermal element and instantaneous release, described binding post, vacuum interrupter, operating mechanism, rotating spindle, thermal element and instantaneous release are installed on base, binding post includes the first binding post and the second binding post, first binding post is arranged on the upper end of base, second binding post is arranged on the bottom of base, vacuum interrupter is positioned at the lower section of the first binding post, vacuum interrupter includes insulation crust, conducting system, shielding harness, corrugated tube, first contact and the second contact, operating mechanism is positioned at the centre position of base, the left side of operating mechanism and right side are mounted on rotating spindle and thermal element, operating mechanism be installed below instantaneous release.

As the further scheme of the present invention: operating mechanism is positioned at the lower section of vacuum interrupter.

As the further scheme of the present invention: the quantity of vacuum interrupter, the first binding post and the second binding post is preferably three.

As the further scheme of the present invention: the first contact and the second contact all adopt chromiumcopper to make, insulation crust adopts glass or ceramic material, and corrugated tube adopts stainless steel material to make.

Compared with prior art, the invention has the beneficial effects as follows: this device is reasonable in design, adopting modularization assemble, detachability is good, convenient debugging; This device reduces the size of whole power distribution cabinet, decreases the volume of product, thus decreasing floor space, reduces cost of transportation; This device adopts vacuum interrupter, it is possible to accomplish zero absolute arcing, it is ensured that the use safety of circuit; Which solves the safety utilization of electric power problem under inflammable and explosive environment and the strong environment of corrosivity, it is adaptable to the places such as colliery, oil field, chemical plant, ordnance factory, result of use is good.

Accompanying drawing explanation

Fig. 1 is the structural representation of zero arcing chopper.

Fig. 2 is the structural representation of vacuum interrupter in zero arcing chopper.

Wherein: 1-base, 2-the first binding post, 3-vacuum interrupter, 31-insulation crust, 32-the first contact, 33-the second contact, 4-operating mechanism, 5-rotating spindle, 6-thermal element, 7-instantaneous release, 8-the second binding post.

Detailed description of the invention

Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.

Refer to Fig. 1-2, a kind of zero arcing chopper, including base 1, binding post, vacuum interrupter 3, operating mechanism 4, rotating spindle 5, thermal element 6 and instantaneous release 7, described binding post, vacuum interrupter 3, operating mechanism 4, rotating spindle 5, thermal element 6 and instantaneous release 7 are installed on base 1, binding post includes the first binding post 2 and the second binding post 8, first binding post 2 is arranged on the upper end of base 1, second binding post 8 is arranged on the bottom of base 1, vacuum interrupter 3 is positioned at the lower section of the first binding post 2, vacuum interrupter 3 includes insulation crust 31, conducting system, shielding harness, corrugated tube, first contact 32 and the second contact 33, operating mechanism 4 is positioned at the centre position of base 1, the left side of operating mechanism 4 and right side are mounted on rotating spindle 5 and thermal element 6, operating mechanism 4 be installed below instantaneous release 7. operating mechanism 4 is positioned at the lower section of vacuum interrupter 3. the quantity of vacuum interrupter the 3, first binding post 2 and the second binding post 8 is preferably three. first contact 32 and the second contact 33 all adopt chromiumcopper to make, and insulation crust 31 adopts glass or ceramic material, and corrugated tube adopts stainless steel material to make.

The operation principle of the present invention is: when circuit is short-circuited, and vacuum interrupter 3, owing to being vacuum state, has completely cut off oxygen, it is possible to accomplish zero absolute arcing, it is ensured that the use safety of circuit. This device is reasonable in design, adopts modularization assemble, and detachability is good, convenient debugging; This device reduces the size of whole power distribution cabinet, decreases the volume of product, thus decreasing floor space, reduces cost of transportation; This device adopts vacuum interrupter 3, it is possible to accomplish zero absolute arcing, it is ensured that the use safety of circuit; Which solves the safety utilization of electric power problem under inflammable and explosive environment and the strong environment of corrosivity, it is adaptable to the places such as colliery, oil field, chemical plant, ordnance factory, result of use is good.

Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, it is also possible to make a variety of changes under the premise without departing from this patent objective.

Claims

1. an arcing chopper, it is characterized in that, including base, binding post, vacuum interrupter, operating mechanism, rotating spindle, thermal element and instantaneous release, described binding post, vacuum interrupter, operating mechanism, rotating spindle, thermal element and instantaneous release are installed on base, binding post includes the first binding post and the second binding post, first binding post is arranged on the upper end of base, second binding post is arranged on the bottom of base, vacuum interrupter is positioned at the lower section of the first binding post, vacuum interrupter includes insulation crust, conducting system, shielding harness, corrugated tube, first contact and the second contact, operating mechanism is positioned at the centre position of base, the left side of operating mechanism and right side are mounted on rotating spindle and thermal element, operating mechanism be installed below instantaneous release.

2. zero arcing chopper according to claim 1, it is characterised in that described operating mechanism is positioned at the lower section of vacuum interrupter.

3. zero arcing chopper according to claim 1 and 2, it is characterised in that the quantity of described vacuum interrupter, the first binding post and the second binding post is preferably three.

4. zero arcing chopper according to claim 3, it is characterised in that described first contact and the second contact all adopt chromiumcopper to make, insulation crust adopts glass or ceramic material, and corrugated tube adopts stainless steel material to make.