CN207052522U - A kind of vacuum interrupter anti-kink structure - Google Patents

Abstract

It the utility model is related to a kind of vacuum interrupter anti-kink structure, including moving conductive rod, guide sleeve and at least one anti-kink structure, the guide sleeve is enclosed on moving conductive rod, the anti-kink structure includes the groove of guide sleeve inwall and the convex key of moving conductive rod outer wall, convex key is adapted to groove, the top surface and bottom surface, anti-kink structure of the longitudinally through guide sleeve of groove are along the circumferential direction set at equal intervals.The utility model not only makes arc-chutes itself have anti-torsion ability, can not use supplementary means that moving conductive rod is fixed during arc-chutes are installed, and its anti-torsion ability can meet to be mounted directly demand.The structure is designed by the convex key of moving conductive rod simultaneously, does not reduce the actual current-carrying cross section product of moving conductive rod, so as to avoid the influence to arc-chutes conductive and heat-conductive ability, the conductive and heat-conductive ability of arc-chutes has been effectively ensured, has made the performance of arc-chutes more reliable.

Description

A kind of vacuum interrupter anti-kink structure

Technical field

It the utility model is related to arc-chutes installation tool technical field, more particularly to a kind of vacuum interrupter anti-kink structure.

Background technology

Vacuum interrupter is the core component of mesohigh power switch, it by an insulation crust and dynamic and static contact sealing and Composition, when a failure occurs it, moving contact is driven to separate two contacts by operating mechanism, disengagement failure electric current.Vacuum interrupter moves The motion of contact passes through a thin-walled parts --- and bellows realizes that bellows is connected with moving conductive rod, can both ensure Vacuum in arc-chutes, under mechanism drive moving contact can be enable to carry out division campaign again.The motion can only be along its axial direction Occur, very high mechanical life can be kept, if rotary motion radially occurs, bellows can be made to produce twisting deformation, shadow Its performance is rung, when moving contact moves, gas leakage can be caused because of bellows bursts, arc-chutes is lost its arc extinguishing ability.

The rotary motion that arc-chutes moving contact occurs radially generally occurs during the installation and removal of arc-chutes.It is early The arc-chutes of phase air insulation are not limited by exterior space when mounted, and aid (such as spanner) can be used fixed dynamic Conducting rod prevents it from radially rotating, and protection bellows is injury-free.However, the arc-chutes of compound inslation are empty because of its installation Between it is limited, cause aid can not be used to fix moving conductive rod during installation, conducting rod easily rotates during installation, causes ripple Pipe damages gas leakage.

Utility model content

The utility model aims to provide vacuum interrupter anti-kink structure, can prevent moving conductive rod from rotating, avoid damage to Bellows, while do not reduce the actual current-carrying cross section product of moving conductive rod.

To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：

A kind of vacuum interrupter anti-kink structure, including moving conductive rod, guide sleeve and at least one anti-torsion component, the guiding Be enclosed on moving conductive rod, the convex key of the anti-groove and moving conductive rod outer wall for turning round component including guide sleeve inwall, convex key with Groove is adapted to, the top surface and bottom surface of the longitudinally through guide sleeve of groove

Further, the anti-kink structure at least two, anti-kink structure is along the circumferential direction set at equal intervals.

Further, width 3.5mm~5mm of the groove, depth 2mm~3mm of the groove.

Wherein, convex key has more than 0.05mm fit clearance with groove.

Further, convex key length is more than 10mm.

Wherein, the convex key and moving conductive rod are integrally manufactured, or the convex key is welded to connect with moving conductive rod.

When convex key and moving conductive rod are welded to connect, metallic pin may be selected in convex key.

Compared with prior art, the utility model has the advantages that：

The utility model not only makes arc-chutes itself have anti-torsion ability, can not be used during arc-chutes are installed auxiliary Moving conductive rod is fixed assistant's section, and its anti-torsion ability can meet to be mounted directly demand.The structure passes through moving conductive simultaneously The convex key design of bar, the actual current-carrying cross section product of moving conductive rod is not reduced, so as to avoid the shadow to arc-chutes conductive and heat-conductive ability Ring, the conductive and heat-conductive ability of arc-chutes has been effectively ensured, has made the performance of arc-chutes more reliable.

Brief description of the drawings

Fig. 1 is sectional view of the present utility model；

Fig. 2 is graphics of the present utility model；

Fig. 3 is the sectional view of guide sleeve；

Fig. 4 is the top view of guide sleeve；

Fig. 5 is the sectional view of moving conductive rod；

In figure：1- moving conductive rods, 2- guide sleeves, 3- convex keys, 4- grooves.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing, to this reality It is further elaborated with new.

As shown in Figure 1, 2, vacuum interrupter anti-kink structure disclosed in the utility model, including moving conductive rod 1, guide sleeve 2 With at least one anti-kink structure, guide sleeve 2 is enclosed on moving conductive rod 1, and anti-kink structure includes the groove 4 of the inwall of guide sleeve 2 and moved The convex key 3 of the outer wall of conducting rod 1, convex key 3 are adapted to groove 4, as shown in Figure 3,4, the top surface of the longitudinally through guide sleeve 2 of groove 4 and Bottom surface.When anti-kink structure is in two or more, anti-kink structure is along the circumferential direction set at equal intervals.There is anti-kink structure in the present embodiment Two, two anti-kink structures are peripherally disposed, and two anti-kink structures are 180 ° of circumferencial direction interval.That is the inwall of guide sleeve 2 Have two grooves being arranged symmetrically 4, two grooves 4 180 ° of circumference interval, wherein, width 3.5mm~5mm of groove 4, Depth 2mm~3mm of groove 4.Wherein, convex key 3 has more than 0.05mm fit clearance with groove 4.The length of convex key 3 is more than 10mm.As shown in figure 5, convex key 3 and moving conductive rod 1 are integrally manufactured, or convex key 3 is welded to connect with moving conductive rod 1.Convex key 3 can Direct cold extrusion forming during with by processing moving conductive rod 1, when convex key 3 is welded to connect with moving conductive rod 1, gold may be selected in convex key 3 Category pin, by two symmetrical solderings of metallic pin on conducting rod 1.Groove 4 on guide sleeve 2 can pass through mould according to material property Molded or later stage milling machine is process.

Assembly method is：It is directed to set 2 and puts moving conductive rod 1, as shown in Fig. 2 needs range estimation contraposition to make during being inserted in Convex key 3 on conducting rod 1 enters in the groove 4 of guide sleeve 2.So after guide sleeve 2 is fixed on arc-chutes, it can pass through The cooperation of convex key 3 and groove 4 prevents the rotary motion of moving conductive rod 1.

The utility model not only makes arc-chutes itself have anti-torsion ability, can not be used during arc-chutes are installed auxiliary Moving conductive rod is fixed assistant's section, and its anti-torsion ability can meet to be mounted directly demand.The structure passes through moving conductive simultaneously The convex key design of bar, the actual current-carrying cross section product of moving conductive rod is not reduced, so as to avoid the shadow to arc-chutes conductive and heat-conductive ability Ring, the conductive and heat-conductive ability of arc-chutes has been effectively ensured, has made the performance of arc-chutes more reliable.

Certainly, the utility model can also have other numerous embodiments, without departing substantially from the utility model spirit and its essence In the case of, those skilled in the art can make various corresponding changes and deformation, but these according to the utility model Corresponding change and deformation should all belong to the scope of the claims appended by the utility model.

Claims (8)

1. A kind of 1. vacuum interrupter anti-kink structure, it is characterised in that:Including moving conductive rod (1), guide sleeve (2) and at least one anti- Component is turned round, the guide sleeve (2) is enclosed on moving conductive rod (1), and the anti-component of turning round includes the groove (4) of guide sleeve (2) inwall With the convex key (3) of moving conductive rod (1) outer wall, the convex key (3) is adapted to groove (4), the longitudinally through guide sleeve of the groove (4) (2) top surface and bottom surface.
2. 2. vacuum interrupter anti-kink structure according to claim 1, it is characterised in that：The anti-torsion component at least two Individual, two anti-components of turning round along the circumferential direction are set at equal intervals.
3. 3. vacuum interrupter anti-kink structure according to claim 1, it is characterised in that：The width 3.5mm of the groove (4) ~5mm, depth 2mm~3mm of the groove (4).
4. 4. the vacuum interrupter anti-kink structure according to claim 1 or 3, it is characterised in that：The convex key (3) and groove (4) there is more than 0.05mm fit clearance.
5. 5. vacuum interrupter anti-kink structure according to claim 1, it is characterised in that：The length of the convex key (3) is more than 10mm。
6. 6. vacuum interrupter anti-kink structure according to claim 1, it is characterised in that：The convex key (3) and moving conductive rod (1) it is integrally manufactured.
7. 7. vacuum interrupter anti-kink structure according to claim 1, it is characterised in that：The convex key (3) and moving conductive rod (1) it is welded to connect.
8. 8. vacuum interrupter anti-kink structure according to claim 7, it is characterised in that：The convex key (3) is metallic pin.