CN208622648U - A kind of breaker pole - Google Patents

Abstract

The utility model provides a kind of breaker pole, it include: insulation shell, vacuum interrupter, insulated pull rod and pole moved end pull rod, accommodating chamber is equipped in the insulation shell, vacuum interrupter is arranged in accommodating chamber, the moved end of vacuum interrupter connects a moving conductive rod, the moving conductive rod forms fixed be electrically connected with the moved end of vacuum interrupter, lower wire outlet seat is equipped in the accommodating chamber, the moving conductive rod forms sliding with lower wire outlet seat and is electrically connected, when the moved end of vacuum interrupter is acted, drive moving conductive rod simultaneously operation, moving conductive rod and lower wire outlet seat, which form sliding and be electrically connected, substitutes being directly connected to for the moved end of vacuum interrupter in the prior art and flexible conductor, the subsequent copper bar that can directly adopt hard in extraction circuit part is rigidly electrically connected with lower wire outlet seat can be realized, stable structure, assembly is easy, and it is at low cost.

Description

A kind of breaker pole

Technical field

The utility model relates to circuit switched domains, and in particular to a kind of breaker pole.

Background technique

The dielectric of vacuum circuit breaker contact gap after its arc-extinguishing medium and arc extinguishing is gained the name due to being all high vacuum；It has There is the advantages of small in size, light-weight, not have to maintenance suitable for frequent operation, arc extinguishing, using more universal in power distribution network.

The essential core device of breaker is vacuum interrupter, and in the past, the insulation crust of general vacuum interrupter is exposed to In air, there are problems that by extraneous dust, moisture contamination.To reduce this influence, it is desirable that the shell of vacuum interrupter has foot Enough length, this not only influences the miniaturization of vacuum interrupter, also influences the Performance And Reliability of vacuum interrupter.With technology Progress, existing vacuum interrupter is integrated in pole, and pole has the advantage that and traditional assembly type pole Column is compared, and the number of parts of pole largely reduces, and the faying surface of conductor is reduced to 3 groups by 6 groups, and connection bolt is subtracted by 8 Less to 1~3, simple structure substantially increases the reliability of breaker；Since vacuum interrupter is embedded in solid material In, so not needing to do any further processing, pole can reach very high dielectric strength；Vacuum interrupter is embedding Enter to after solid material, influence of the external environment of pole to vacuum interrupter is reduced at least.

But there is also following disadvantages for existing pole: soft company is used between electrical contact and the moved end of vacuum interrupter It connects, i.e., is connected between the moved end of electrical contact and vacuum interrupter using flexible conductor (such as soft copper), flexible conductor can be with vacuum extinction The moved end of room acts together, but flexible conductor processing cost is high and assembling bothers, it is desirable that precision is high；Furthermore with access times Increase, flexible conductor is easy to appear the exception such as fatigue fracture or dislocation, and pole is caused to fail.

Utility model content

It, can be by electrical contact in the prior art and vacuum interrupter for this purpose, the utility model is using a kind of new structure The replacement that is flexible coupling between moved end, to solve the above problems.

To achieve the above object, the technical scheme that the utility model is provided is as follows:

A kind of breaker pole, comprising: insulation shell, vacuum interrupter, insulated pull rod and pole moved end pull rod, institute It states and is equipped with accommodating chamber in insulation shell, the upper end of the insulation shell has the upper end opening of connection accommodating chamber, and lower end has Connect the lower ending opening of accommodating chamber；

The vacuum interrupter is arranged in accommodating chamber, and the upper end of the insulation shell is equipped with the first electrical contact and and vacuum The static side of arc-chutes is electrically connected；

The moved end of vacuum interrupter connects a moving conductive rod, and the moving conductive rod is electrically connected with the moved end of vacuum interrupter, Lower wire outlet seat is equipped in the accommodating chamber, the moving conductive rod forms sliding with lower wire outlet seat and is electrically connected, in the accommodating chamber also Equipped with connecting copper bar, one end of the connecting copper bar is electrically connected lower wire outlet seat, and the other end extends to lower ending opening；

The lower end of the insulation shell is equipped with second electrical contact and transmission levers, the second electrical contact and extends to lower end The connecting copper bar of opening is electrically connected；Pole moved end pull rod is arranged in accommodating chamber, and the first end of pole moved end pull rod connects The moved end of vacuum interrupter, second end extend to first arm of force of lower ending opening connection transmission levers, and the insulated pull rod connects Connect second arm of force of transmission levers.

Further, the moving conductive rod forms sliding with lower wire outlet seat by fingertip spring and is electrically connected.

Further, the accommodating chamber is including the first cavity, the second cavity and through the first cavity of connection and the second chamber The linkage section of body, in the first cavity, the upper end opening connects the first cavity, the pole for the vacuum interrupter fixed setting For the setting of column moved end pull rod in the second cavity, the inner wall of the linkage section is equipped with clamping groove, and the lower wire outlet seat fixation is connected in card In access slot.

Further, the lower wire outlet seat is hollow barrel-type structure, and the moving conductive rod is slidably sheathed on lower wire outlet seat Interior, the contact surface that the moving conductive rod is electrically connected with the moved end of vacuum interrupter is tapered surface.

Further, the moved end of the vacuum interrupter is equipped with a connecting hole, and the moving conductive rod is equipped with a corresponding vacuum The relief hole of the connecting hole of the moved end of arc-chutes, the relief hole that pole moved end pull rod passes through moving conductive rod are fixedly attached to very The connecting hole of the moved end of empty arc-chutes.

Further, a butting section is additionally provided on the pull rod of the pole moved end, pole moved end pull rod is fixedly connected very When the connecting hole of the moved end of empty arc-chutes, the butting section is resisted against on moving conductive rod, and then is secured against moving conductive rod Electrical connection is formed on the moved end of vacuum interrupter.

Further, the pole moved end pull rod in the accommodating chamber is also connected with excess of stroke elastic component.

Further, the excess of stroke elastic component is excess of stroke disc spring, and pole moved end pull rod includes first connecting rod, the second company Bar and mounting portion, the mounting portion include the installation shell with mounting groove, slot cover and contradict connector, and the excess of stroke disc spring is set It sets in the mounting groove of installation shell, the conflict connector has an abutting portion and interconnecting piece, described to contradict supporting for connector Contact portion contacts in excess of stroke disc spring, and the slot cover is covered on installation shell, and the abutting portion for contradicting connector is held in Between excess of stroke disc spring and slot cover, the interconnecting piece for contradicting connector is extended to outside slot cover, and the first end of the first connecting rod connects The interconnecting piece for contradicting connector is connect, second end connects first arm of force of transmission levers；The first end connection of the second connecting rod is true The moved end of empty arc-chutes, second end connection installation shell.

Further, the upper end opening of the insulation shell is embedded with wire outlet seat on one, and the upper wire outlet seat goes out with vacuum The static side of arc chamber is electrically connected, and the upper end of the insulation shell is additionally provided with outlet on pole, and outlet is electrically connected on the pole Upper wire outlet seat and the first electrical contact.

Further, the lower end of the insulation shell is additionally provided with outlet under pole, between the second electrical contact and copper bar Electrical connection is formed by outlet under pole.

By technical solution provided by the utility model, have the following beneficial effects:

The moved end of one moving conductive rod of moved end connection of vacuum interrupter, the moving conductive rod and vacuum interrupter forms fixation Electrical connection, the accommodating chamber is interior to be equipped with lower wire outlet seat, and the moving conductive rod forms sliding with lower wire outlet seat and is electrically connected, vacuum extinction When the moved end of room is acted, moving conductive rod simultaneously operation is driven, moving conductive rod forms sliding with lower wire outlet seat and is electrically connected substitution The moved end of vacuum interrupter and flexible conductor are directly connected in the prior art, subsequent to directly adopt hard drawing circuit part Copper bar rigidly be electrically connected and can be realized with lower wire outlet seat, stable structure, assembly simplicity, and at low cost.

Detailed description of the invention

Fig. 1 show the structural schematic diagram of breaker pole in embodiment；

Fig. 2 show the enlarged diagram of a-quadrant in Fig. 1；

Fig. 3 show the enlarged diagram of B area in Fig. 1.

Specific embodiment

To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.

Now in conjunction with the drawings and specific embodiments, the present invention will be further described.

Referring to figs. 1 to shown in Fig. 3, a kind of breaker pole provided in this embodiment, comprising: insulation shell 10, true Empty arc-chutes 13, insulated pull rod 50 and pole moved end pull rod.Accommodating chamber, the insulation shell 10 are equipped in the insulation shell 10 Upper end have connection accommodating chamber upper end opening, lower end have connection accommodating chamber lower ending opening.

Further, the accommodating chamber include: the first cavity 101, the second cavity 102 and through connection the first cavity 101 and second cavity 102 linkage section (not shown), the upper end opening of the insulation shell 10 connects the first cavity 101, described The lower ending opening of insulation shell 10 connects the second cavity 102.

The vacuum interrupter 13 is arranged in accommodating chamber, and the upper end of the insulation shell 10 is equipped with the first electrical contact 11 simultaneously It is electrically connected with the static side of vacuum interrupter 13.First electrical contact 11 is inserted by the rotation realization of pole and switchgear main bus-bar It connects or separates.

Further, vacuum interrupter 13 is fixed at 101 in the first cavity of accommodating chamber, the insulation shell 10 Upper end opening is embedded with wire outlet seat 21 on one, and the upper wire outlet seat 21 is electrically connected with the static side of vacuum interrupter 13, the insulation The upper end of shell 10 is additionally provided with outlet 22 on pole, and outlet 22 is electrically connected wire outlet seat 21 and the first electricity touching on the pole First 11.Of course, in other embodiments, the mode that the first electrical contact 11 is electrically connected with the static side of vacuum interrupter 13 can adopt The mode that a conductor is directly connected to such as is directlyed adopt with other, is no longer illustrated one by one herein.

The moved end of vacuum interrupter 13 connects a moving conductive rod 32, the moved end of the moving conductive rod 32 and vacuum interrupter 13 Fixed electrical connection is formed, lower wire outlet seat 31 is equipped in the accommodating chamber, the moving conductive rod 32 is formed with lower wire outlet seat 31 to be slided It is electrically connected, connecting copper bar 34 is additionally provided in second accommodating chamber 102, one end of the connecting copper bar 34 is electrically connected lower wire outlet seat 31, with lower wire outlet seat 31 realize it is rigid be electrically connected, the other end extends to lower ending opening.Further, which is hard Matter copper bar 34 has processing, assembly easy compared with the flexible conductor used in the prior art, and is hardly damaged, stable structure.

Further, the inner wall of the linkage section is equipped with clamping groove (not shown), and the lower fixation of wire outlet seat 31 is connected in In clamping groove, the fixing assembling of lower wire outlet seat 31 is realized, in other embodiments, can also use and the fixation side such as bond, be spirally connected Formula.

Further, the lower wire outlet seat 31 is hollow barrel-type structure, and the moving conductive rod 32 is slidably sheathed on down In line seat 31, and sliding is formed with lower wire outlet seat 31 by fingertip spring 33 and is electrically connected, the moving conductive rod 32 and vacuum extinction The contact surface of the fixed electrical connection in the moved end of room 13 is tapered surface, and contact surface is big, and more closely.Of course, in other embodiments In be not limited thereto.

The lower end of the insulation shell 10 is equipped with second electrical contact 12 and transmission levers, the second electrical contact 12 and extension Connecting copper bar 34 to lower ending opening is electrically connected.Specifically, the lower end of insulation shell 10 is additionally provided with outlet 35 under a pole, it is described Outlet 35 is electrically connected copper bar 34 and second electrical contact 12 under pole.

Pole moved end pull rod is arranged in the second cavity 102 of accommodating chamber, the first end connection of pole moved end pull rod The moved end of vacuum interrupter 13, second end extend to first arm of force 61 of lower ending opening connection transmission levers, and the insulation is drawn Second arm of force 62 of the connection transmission levers of bar 50.

The push/pull of insulated pull rod 50, and then drive pole moved end pull rod mobile, the mobile drive of pole moved end pull rod The moved end of vacuum interrupter 13 contacts/is detached from the static side of vacuum interrupter.

Further, the moved end of the vacuum interrupter 13 is equipped with a connecting hole (not shown), which is screw hole, The moving conductive rod 32 is equipped with the relief hole 321 of the connecting hole of the moved end of a corresponding vacuum interrupter 13, and the pole moved end is drawn Bar passes through the connecting hole of the fixed moved end for being screw-coupled to vacuum interrupter 13 of relief hole 321 of moving conductive rod 32.Of course, pole is dynamic The fixed form of end pull rod and connecting hole can also be realized using other such as grafting modes in the prior art, also not another herein One citing.

Further, a butting section 401 is additionally provided on the pull rod of the pole moved end, pole moved end pull rod is fixedly connected When the connecting hole of the moved end of vacuum interrupter 13, the butting section 401 is resisted against on moving conductive rod 32, is applied to the moving conductive rod 32 Add the conflict power in a moved end direction towards vacuum interrupter 13, and then moving conductive rod 32 is made to be secured against vacuum interrupter Electrical connection is formed on 13 moved end, which is similar to the structure of nut.

Further, the pole moved end pull rod in the accommodating chamber is also connected with excess of stroke elastic component 45, by excess of stroke elastic component 45 are arranged in accommodating chamber, compared with conventional arrangement in insulated pull rod 50, can be protected, be avoided because of moisture attacks well Lead to overaging.

Further, the excess of stroke elastic component 45 is excess of stroke disc spring 45, and pole moved end pull rod includes first connecting rod 41, second connecting rod 42 and mounting portion, the mounting portion include the installation shell 431 with mounting groove, slot cover 432 and conflict connection Part 433, the excess of stroke disc spring 45 are arranged in the mounting groove of installation shell 431, and the conflict connector 433 has an abutting portion 4331 and interconnecting piece 4332, the abutting portion 4331 for contradicting connector 433 contacts in excess of stroke disc spring 45, the slot cover 432 It is covered on installation shell 431, the abutting portion 4331 for contradicting connector 433 is held in excess of stroke disc spring 45 and slot cover 432 Between, the interconnecting piece 4332 for contradicting connector 433 extends to outside slot cover 432, the first end connection of the first connecting rod 41 The interconnecting piece 4332 of connector 433 is contradicted, second end connects first arm of force 61 of transmission levers；The first of the second connecting rod 42 The moved end of end connection vacuum interrupter 13, second end connection installation shell 431.The second end of the first connecting rod 41 is pole The first end of the second end of moved end pull rod, the second connecting rod 42 is the first end of pole moved end pull rod.Of course, at other In embodiment, excess of stroke elastic component is to be also possible to other devices for having excess of stroke elasticity, such as pressure spring.

Further, the first electrical contact 11 and second electrical contact 12 are disposable separating plug, of course, in other implementations In example, the first electrical contact 11 is also possible to other electrical contacts with second electrical contact 12, such as second electrical contact 12 is static contact, this When selection carried out according to practical set, be no longer described in detail.

The moved end of vacuum interrupter 13 connects a moving conductive rod 32, the moved end of the moving conductive rod 32 and vacuum interrupter 13 Fixed electrical connection is formed, lower wire outlet seat 31 is equipped in the accommodating chamber, the moving conductive rod 32 is formed with lower wire outlet seat 31 to be slided Electrical connection when the moved end of vacuum interrupter 13 is acted, drives moving conductive rod 32 to move at the same time, moving conductive rod 32 and lower outlet The moved end of vacuum interrupter 13 and flexible conductor are directly connected in the prior art for the sliding electrical connection substitution of seat 31, subsequent to draw The copper bar 34 that circuit part can directly adopt hard is electrically connected with lower 31 rigidity of wire outlet seat can be realized, stable structure, assembly letter Just, and it is at low cost.

Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details On the utility model can be made a variety of changes, be the protection scope of the utility model.

Claims (10)

1. a kind of breaker pole, comprising: insulation shell, vacuum interrupter, insulated pull rod and pole moved end pull rod, it is special Sign is: accommodating chamber is equipped in the insulation shell, the upper end of the insulation shell has the upper end opening of connection accommodating chamber, Lower end has the lower ending opening of connection accommodating chamber；

The vacuum interrupter is arranged in accommodating chamber, and the upper end of the insulation shell is equipped with the first electrical contact and and vacuum extinction The static side of room is electrically connected；

The moved end of one moving conductive rod of moved end connection of vacuum interrupter, the moving conductive rod and vacuum interrupter forms fixation and is electrically connected It connects, lower wire outlet seat is equipped in the accommodating chamber, the moving conductive rod forms sliding with lower wire outlet seat and is electrically connected, in the accommodating chamber It is additionally provided with connecting copper bar, one end of the connecting copper bar is electrically connected lower wire outlet seat, and the other end extends to lower ending opening；

The lower end of the insulation shell is equipped with second electrical contact and transmission levers, the second electrical contact and extends to lower ending opening Connecting copper bar electrical connection；Pole moved end pull rod is arranged in accommodating chamber, and the first end of pole moved end pull rod connects vacuum The moved end of arc-chutes, second end extend to first arm of force of lower ending opening connection transmission levers, and the insulated pull rod connection passes Second arm of force of dynamic lever.

2. breaker pole according to claim 1, it is characterised in that: the moving conductive rod by fingertip spring with Lower wire outlet seat forms sliding electrical connection.

3. breaker pole according to claim 1, it is characterised in that: the accommodating chamber includes the first cavity, the Two cavitys and linkage section through connection the first cavity and the second cavity, the vacuum interrupter is fixed at the first cavity Interior, the upper end opening connects the first cavity, and pole moved end pull rod is arranged in the second cavity, and the inner wall of the linkage section is set There is clamping groove, the lower wire outlet seat fixation is connected in clamping groove.

4. breaker pole according to claim 1, it is characterised in that: the lower wire outlet seat is hollow barrel-type knot Structure, the moving conductive rod are slidably sheathed in lower wire outlet seat, and the moved end fixation of the moving conductive rod and vacuum interrupter is electrically connected The contact surface connect is tapered surface.

5. breaker pole according to claim 4, it is characterised in that: the moved end of the vacuum interrupter is equipped with one Connecting hole, the moving conductive rod are equipped with the relief hole of the connecting hole of the moved end of a corresponding vacuum interrupter, and the pole moved end is drawn The relief hole that bar passes through moving conductive rod is fixedly attached to the connecting hole of the moved end of vacuum interrupter.

6. breaker pole according to claim 5, it is characterised in that: be additionally provided with one on the pull rod of the pole moved end Butting section, when the connecting hole for the moved end that pole moved end pull rod is fixedly connected with vacuum interrupter, the butting section is resisted against dynamic On conducting rod, and then it is secured against moving conductive rod on the moved end of vacuum interrupter and forms electrical connection.

7. breaker pole according to claim 1, it is characterised in that: the pole moved end pull rod in the accommodating chamber It is also connected with excess of stroke elastic component.

8. breaker pole according to claim 7, it is characterised in that: the excess of stroke elastic component is excess of stroke disc spring, Pole moved end pull rod includes first connecting rod, second connecting rod and mounting portion, and the mounting portion includes the installation with mounting groove Shell, slot cover and conflict connector, the excess of stroke disc spring are arranged in the mounting groove of installation shell, and the conflict connector has One abutting portion and interconnecting piece, the abutting portion for contradicting connector contact in excess of stroke disc spring, and the slot cover is covered on mounting shell On body, the abutting portion for contradicting connector is held between excess of stroke disc spring and slot cover, the interconnecting piece for contradicting connector It extends to outside slot cover, the first end connection of the first connecting rod contradicts the interconnecting piece of connector, and second end connects transmission levers First arm of force；The moved end of the first end connection vacuum interrupter of the second connecting rod, second end connection installation shell.

9. breaker pole according to claim 1, it is characterised in that: the upper end opening of the insulation shell is embedded There is wire outlet seat on one, the upper wire outlet seat is electrically connected with the static side of vacuum interrupter, and the upper end of the insulation shell is additionally provided with pole Outlet on column, outlet is electrically connected wire outlet seat and the first electrical contact on the pole.

10. breaker pole according to claim 1, it is characterised in that: the lower end of the insulation shell is additionally provided with Outlet under pole is electrically connected between the second electrical contact and copper bar by outlet formation under pole.