CN209388941U - The pole and vacuum circuit breaker of vacuum circuit breaker - Google Patents

Abstract

The utility model relates to the pole of vacuum circuit breaker and vacuum circuit breakers, it include: an insulation shell, it has a upper cavity and a lower cavity, the upper cavity includes a wire outlet seat, the lower cavity includes another wire outlet seat, the wire outlet seat exposes an exposed part of the insulation shell for being electrically connected with a conductor, and a wire outlet seat has an insulation barrier towards the side of another wire outlet seat, and the exposed part can form complete projection on the insulation barrier.

Description

The pole and vacuum circuit breaker of vacuum circuit breaker

Technical field

The utility model relates to machinery field, especially a kind of pole of vacuum circuit breaker.In addition, the utility model also relates to And the vacuum circuit breaker using this pole.

Background technique

Pole for vacuum circuit breaker usually has an insulation shell.A vacuum is accommodated in the insulation shell to go out Arc chamber, a conductive clip and an insulated pull rod, the vacuum interrupter include a upper static contact, a lower moving contact and one Moving conductive rod, its through-hole for passing through conductive clip of insulated pull rod is fixed on the other end of moving conductive rod, to drive moving conductive rod or more It is mobile, and then realize that lower moving contact is contacting and separating with upper static contact, it is also achieved that the on-off of vacuum interrupter in this way.

As shown in Figure 1A, pole includes that a upper connecting base (not shown) and a lower connecting base (do not show in figure Out).Upper connecting base is electrically connected with static contact, and lower moving contact is electrically connected to lower connecting base by being flexible coupling on conductive clip.Above go out Line seat in addition to being surrounded by insulation shell, around also protrusion be provided with an insulating cylinder 11, similarly, lower wire outlet seat is in addition to exhausted Edge shell surround, around protrusion be provided with an insulating cylinder 12.In the prior art, if each attachment base will be connect with bus, by In bus be usually one it is straight upper or directly under copper bar, end cannot protrude into inside insulating cylinder, it is therefore desirable to one such as Figure 1B Shown in cushion block 13.The cushion block 13 is placed in inside insulating cylinder and can at least partly stretch out the outside of insulating cylinder, in order to even Connect external bus.The cushion block 13 is electrically connected with each attachment base.

But such cushion block 13 increases the cost of entire vacuum circuit breaker.

Utility model content

In view of this, the utility model proposes the poles of vacuum circuit breaker, comprising: an insulation shell has one A upper cavity and a lower cavity, the upper cavity include a wire outlet seat, and the lower cavity includes another wire outlet seat, described The exposed part that wire outlet seat exposes the insulation shell is used to be electrically connected with a conductor,

One wire outlet seat has an insulation barrier towards the side of another wire outlet seat, and the exposed part can be in institute It states and forms complete projection on insulation barrier.

In this way, an insulation barrier is respectively provided with above the lower section of upper wire outlet seat and lower wire outlet seat upper wire outlet seat is isolated With lower wire outlet seat, since wire outlet seat is all covered as the prior art, conductor can directly connect with wire outlet seat It connects and passes through the parts such as bolt and fix, be no longer needed for cushion block in the prior art in this way, avoid increasing cost.

According to pole as described above, optionally, the insulation barrier along wrap up the insulation shell of the wire outlet seat to Outside extends.In this way, insulation barrier and insulation shell can be integrally formed, and then leakproofness is preferably and simple process.

According to pole as described above, optionally, the insulation barrier is arc-shaped, towards another wire outlet seat It arches upward in direction.Arc can avoid point discharge as far as possible.

According to pole as described above, optionally, the insulation barrier semicircular in shape.Semicircular shape can not only be use up Amount package insulation barrier, and simple process, it is easy to process.

According to pole as described above, optionally, the maximum width of the insulation barrier is greater than its close wire outlet seat Diameter.

According to pole as described above, optionally, on the insulation shell around the wire outlet seat of the upper cavity have more A dielectric rib, wire outlet seat of the dielectric rib around the upper cavity.The dielectric rib can increase upper wire outlet seat with it is attached The creepage distance of other nearly objects (such as cabinet).

According to pole as described above, optionally, there are multiple insulation on the insulation shell between two wire outlet seats Rib.The dielectric rib is capable of increasing the creepage distance between wire outlet seat and lower wire outlet seat, in this way, upper wire outlet seat and lower outlet It can avoid discharging as far as possible between seat.

According to pole as described above, optionally, the exposed part is directly connected to the conductor.Connection contact in this way Property connects.

According to pole as described above, optionally, the conductor is rigid conductor, and the exposed part and the conductor are logical It crosses and is bolted.

According to described in any item poles as above, optionally, the insulation barrier is centered around its close wire outlet seat Around, and the side wall of the insulation barrier has a gap, the conductor is connect by the gap with internal wire outlet seat. In this way in the case where covering as far as possible to wire outlet seat, wire outlet seat is connect with conductor, is not necessarily to cushion block.

The utility model also provides vacuum circuit breaker, including as above described in any item poles.

Detailed description of the invention

The preferred embodiment of the utility model will be described in detail by referring to accompanying drawing below, make the ordinary skill people of this field Member becomes apparent from the above and other feature and advantage of the utility model, in attached drawing:

Figure 1A is the structural schematic diagram of the pole of the prior art.

Figure 1B is the structural schematic diagram for the cushion block that the prior art is electrically connected with the wire outlet seat of pole.

Fig. 2 is the structural schematic diagram according to the pole of the embodiments of the present invention.

Fig. 3 is the schematic diagram being connect according to the pole of the embodiments of the present invention with conductor.

Appended drawing reference:

The insulating cylinder of the upper wire outlet seat of 11-

The insulating cylinder of wire outlet seat under 12-

13- cushion block

The upper cavity of 21-

Cavity under 22-

The first insulation barrier of 23-

The second insulation barrier of 24-

25- dielectric rib

The first exposed part of 211-

The second exposed part of 221-

31- conductor

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, by the following examples to the utility model It is further described.

The present embodiment provides the poles of vacuum circuit breaker.As shown in Fig. 2, the pole includes an insulation shell, have One upper cavity 21 and a lower cavity 22, upper cavity 21 include a wire outlet seat, i.e., upper wire outlet seat, wire outlet seat has one on this A exposed part, i.e. the first exposed part 211.Lower cavity 22 includes a wire outlet seat, that is, descends wire outlet seat, which has One exposed part, i.e. the second exposed part 221.It should be noted that above-mentioned wire outlet seat is included at least for conductive conductor 31 Part.Above-mentioned wire outlet seat exposes an exposed part of insulation shell for being electrically connected with a conductor 31.

Wherein, at least one wire outlet seat has an insulation barrier, exposed part energy towards the side of another wire outlet seat It is enough that complete projection is formed on insulation barrier.Exposed part can form complete projective representation on insulation barrier, exposed Part forms projection on insulation barrier and insulation barrier can accommodate the projection completely.In this way, insulation barrier can be abundant The exposed part of two wire outlet seats is isolated, avoids discharging between the two as far as possible.Above-mentioned exposed part can be directly connected to conductor, Connection contact in this way connects.Conductor is, for example, bus, more specifically, can be copper bar.The insulation barrier of the present embodiment is located at The side of wire outlet seat, the i.e. insulation barrier will not its fully wrapped around close wire outlet seats.In other words, which can be with It is centered around around the wire outlet seat, and the side wall of the insulation barrier has certain gap.Conductor can be stretched by the gap Enter the inside to insulation barrier, and then is connect with wire outlet seat.That is, conductor is connect by the gap with internal wire outlet seat.The sky Gap can be the strip-shaped hole for running through side wall, is also possible to a square hole, can specifically select according to actual needs, herein It repeats no more.In this way in the case where covering as far as possible to wire outlet seat, wire outlet seat is connect with conductor, is not necessarily to cushion block.

As shown in Fig. 2, the lower section of upper wire outlet seat has first insulation barrier 23, the first exposed part 211 can be Complete projection is formed on first insulation barrier 23, certainly, the second exposed part 221 also can on the first insulation barrier 23 shape At complete projection.The top of lower wire outlet seat has second insulation barrier 24, and lower wire outlet seat can be in the second insulation barrier Complete projection is formed on 24.

In the present embodiment, the first insulation barrier 23 is for covering wire outlet seat.If the first exposed part 211 is in the first insulation Projection is formed on baffle 23, then first insulation barrier 23 can accommodate the projection completely.If the second exposed part 221 is second Projection is formed on insulation barrier 24, then second insulation barrier 24 can accommodate the projection completely.In such manner, it is possible to guarantee upper outlet Electric discharge is not generated as far as possible between seat and lower wire outlet seat.

Optionally, the maximum width of insulation barrier is greater than the diameter of its close wire outlet seat, in such manner, it is possible to guarantee as far as possible exhausted The buffer action of edge baffle.That is, the maximum width of the first insulation barrier 23 is greater than the diameter of upper wire outlet seat, the second insulation barrier 24 Maximum width be greater than lower wire outlet seat diameter.

As shown in figure 3, can be directly connected to since the top of the first exposed part 211 does not have any veil To a conductor 31, without cushion block in the prior art.The conductor 31 can be copper bar.

Optionally, insulation barrier extends outward along the insulation shell of package wire outlet seat.In this way, insulation barrier and insulation Shell can be integrally formed, so leakproofness preferably and simple process.

In the present embodiment, be respectively provided with above the lower section of upper wire outlet seat and lower wire outlet seat an insulation barrier to be isolated on Wire outlet seat and lower wire outlet seat, since wire outlet seat is all covered as the prior art, conductor can directly and go out Line seat connects and passes through the parts such as bolt and fixes, and is no longer needed for cushion block in the prior art in this way, avoids increasing cost.

Specifically, insulation barrier is arc-shaped, arches upward towards the direction of another wire outlet seat.As shown in Fig. 2, the first insulation Baffle 23 is arc-shaped, arches upward towards the direction of the second insulation barrier 24, and the second insulation barrier 24 is arc-shaped, absolutely towards first It arches upward in the direction of edge baffle 23.Arc can avoid point discharge as far as possible.More specifically, the first insulation barrier 23 and second is exhausted Edge baffle 24 is semicircle.Semicircular shape can not only wrap up insulation barrier, and simple process as far as possible, convenient for adding Work.Certainly, which can also surround its close wire outlet seat as far as possible, it is only necessary to reserve certain gap and to lead Body can be protruded into from the gap and be connect with wire outlet seat.

Optionally, as shown in Fig. 2, also having multiple dielectric ribs 25 on the insulation shell of the pole of the present embodiment.For example, Superscribing has multiple dielectric ribs 25 on the insulation shell of outlet seating portion, dielectric rib 25 is around upper wire outlet seat.The insulation Rib 25 can be a closed loop, can also be open loop according to physical location.The dielectric rib 25 can increase upper wire outlet seat with The creepage distance of other neighbouring objects (such as cabinet).

Optionally, there are multiple dielectric ribs 25 on the insulation shell between two wire outlet seats, i.e., upper wire outlet seat and it is lower go out There are multiple dielectric ribs 25 on insulation shell between line seat.The dielectric rib 25 is capable of increasing wire outlet seat and lower wire outlet seat Between creepage distance, in this way, can avoid discharging as far as possible between upper wire outlet seat and lower wire outlet seat.

Optionally, lower also to can have multiple dielectric ribs 25 between wire outlet seat and pedestal, which can increase Creepage distance between wire outlet seat and ground lower greatly.

Conductor 31 in above embodiments specifically can be rigid conductor 31, i.e., the conductor 31 that will not generally deform, Such as copper bar.The conductor 31 can be bolted with the exposed part of each wire outlet seat.The conductor 31 of above-described embodiment is general Under straight upper or straight.Specifically, the extending direction of conductor 31 is parallel to the section of wire outlet seat, this can have centainly in practice in parallel Error.Optionally, the section of wire outlet seat is formed along the axis direction of pole.

The utility model also provides vacuum circuit breaker, which includes the pole of aforementioned any embodiment.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (11)

1. the pole of vacuum circuit breaker, comprising:

One insulation shell, has upper cavity (21) and a lower cavity (22), and the upper cavity (21) includes one Wire outlet seat, the lower cavity (22) include another wire outlet seat, and the wire outlet seat exposes an exposed portion of the insulation shell Divide (211,221) for being electrically connected with a conductor (31), which is characterized in that

One wire outlet seat has an insulation barrier (23,24) towards the side of another wire outlet seat, the exposed part (211, 221) complete projection can be formed on the insulation barrier (23,24).

2. pole according to claim 1, which is characterized in that the insulation barrier (23,24) is along the package outlet The insulation shell of seat extends outward.

3. pole according to claim 2, which is characterized in that the insulation barrier (23,24) is arc-shaped, described in It arches upward in the direction of another wire outlet seat.

4. pole according to claim 2, which is characterized in that insulation barrier (23, the 24) semicircular in shape.

5. pole according to claim 1, which is characterized in that the maximum width of the insulation barrier (23,24) is greater than it The diameter of close wire outlet seat.

6. pole according to claim 1, which is characterized in that the insulation shell around the wire outlet seat of the upper cavity (21) There are multiple dielectric ribs (25) on body, wire outlet seat of the dielectric rib (25) around the upper cavity (21).

7. pole according to claim 1, which is characterized in that have on the insulation shell between two wire outlet seats more A dielectric rib (25).

8. pole described in any one of -7 according to claim 1, which is characterized in that the exposed part (211,221) and institute Conductor (31) is stated to be directly connected to.

9. pole according to claim 8, which is characterized in that the conductor (31) is rigid conductor (31), described exposed Partially (211,221) are bolted with the conductor (31).

10. pole described in any one of -7 according to claim 1, which is characterized in that the insulation barrier is centered around it and is leaned on Around close wire outlet seat, and the side wall of the insulation barrier has a gap, and the conductor passes through the gap and inside Wire outlet seat connection.

11. vacuum circuit breaker, which is characterized in that including pole of any of claims 1-10.