CN208622646U - A kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker - Google Patents

Abstract

A kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker, it overcomes in the prior art as unilateral conductive flexible connection structure part, pass through epoxy resin support when use, so that small product size is larger, weight increases and the problem of heat dissipation effect difference, it is characterized in by upper electric conductor, upper clamp and conductive connection plates constitute upside welded type conduction flexible connection structure, by lower electric conductor, lower clamp and conductive connection plates constitute downside welded type conduction flexible connection structure, the right end of the upper clamp and lower clamp is inserted in the centre bore among conductive connection plates, and it floats in the centre bore, there are process gaps between the upper clamp and lower clamp, beneficial effect is simple and compact for structure, connection is reliable, conductive capability is big, and improve temperature rise License Value, and small volume, it is easy to assembly, good heat dissipation effect, with good machinery Characteristic and electrical characteristic are used suitable for the connection of the moving conductive of the vacuum circuit breaker in Cubicle Gas-Insulated Switchgear.

Description

A kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker

Technical field

The utility model belongs to high voltage electrical apparatus technical field, in particular to vacuum in Cubicle Gas-Insulated Switchgear A kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker of breaker moving conductive connection.

Background technique

In the prior art, it is that conductor is conductively connected that conduction, which is flexible coupling, especially the common original part of compliant conductive connection, but It is seldom applied in the moving conductive connection of the vacuum circuit breaker of Cubicle Gas-Insulated Switchgear, and generally uses spring touch finger It realizes, electrically connects as elastic conduction connection, temperature as defined in standard by using what the spring touch finger of Cu alloy material was realized It is lower to rise License Value, dimension precision requirement is high, and frame mode is single limited, and is not suitable for the relatively large operating condition of electric current, in this way, Directly affect promotion of the breaker by current capacity.Application No. is 201520086976.5 utility models to disclose one kind very Empty breaker flexible connection structure part, vacuum circuit breaker flexible connection structure part described in the utility model include be flexible coupling, outlet it is conductive Bar and conductive clip, the both ends being flexible coupling are weldingly connected with the outlet conductive pole and the conductive clip respectively, make described It is flexible coupling, outlet conductive pole and the conductive clip connect integral, and the copper foil including multiple superposed that is flexible coupling, described more The copper foil set is laminated at least to connect at both ends by the way that welding is molten.The utility model is a kind of unilateral conductive flexible connection structure part, knot Configuration formula is by epoxy resin support when using as can be seen, so that small product size is larger, weight increases and heat dissipation effect Difference.

Utility model content

Technical problem to be solved in the utility model is that in place of overcome the deficiencies in the prior art, providing one kind can be mentioned High temperature rise License Value, a kind of bilateral welded type for vacuum circuit breaker for being more suitable for using under the relatively large operating condition of electric current are led Electric flexible connection structure part.

The technical solution adopted in the utility model includes conductive connection plates, conductive clip and soft electric conductor, is connected in the conduction The centre of fishplate bar is machined with centre bore, and the conductive clip is axially to process spiral shell in conductive clip among 1 step-like cuboid Upper clamp and lower clamp are cut into after pit, the soft electric conductor includes upper electric conductor and lower electric conductor, and upper electric conductor is led under Electric body is formed by stacking by multilayer sheet copper and is in asymmetrical U-shaped, the upper electric conductor of the asymmetric U-shaped and lower electric conductor Long end is welded with conductive connection plates respectively, the short end of the upper electric conductor of asymmetric U-shaped and lower electric conductor respectively with upper clamp and under Clamp welding is made of upside welded type conduction flexible connection structure upper electric conductor, upper clamp and conductive connection plates, by lower conduction The right end of body, lower clamp and conductive connection plates composition downside welded type conduction flexible connection structure, the upper clamp and lower clamp is inserted Enter in the centre bore among conductive connection plates, and float in the centre bore, between the upper clamp and lower clamp there are Process gap.

Upper and lower 2 are machined on the left of the conductive connection plates for welding the groove of soft electric conductor.

It is machined with the first screw mounting hole in the radial direction of the upper clamp and lower clamp, the upper section of first screw mounting hole For the ladder unthreaded hole for penetrating through upper clamp, lower section is the internal thread hole for penetrating through lower clamp.

The conductive connection plates are the conductive connection plates of rectangle, are machined in the conductive connection plates for installing insulation The second screw mounting hole, the bolt mounting holes for being connect with busbar and the third screw for installing support rod of connecting rod Mounting hole.

It is plated on conductive connection surface at left and right sides of the conductive clip internal thread hole and conductive connection plates of the conductive clip Silver-colored processing forms silver coating.

Between the upper clamp and lower clamp there are process gap be 2~3mm.

Compared with prior art, the utility model has the beneficial effects that using bilateral sheet copper multilayer build-up for soft conduction Body, conductive capability is big, and moving operation resistance is small；Soft electric conductor and conductive clip are realized using welding procedure and are conductively connected board ends The connection of conductor, and silver-plated process is carried out to the conductive connection surface at left and right sides of conductive clip internal thread hole and conductive connection plates, Improve temperature rise License Value, and it is simple and compact for structure, connection is reliable, small volume, easy to assembly, good heat dissipation effect, have good Good mechanical property and electrical characteristic, the moving conductive suitable for the vacuum circuit breaker in Cubicle Gas-Insulated Switchgear connect Connect middle use.

Detailed description of the invention

Fig. 1 is the front sectional view of the utility model,

Fig. 2 is the rearview of Fig. 1,

Fig. 3 is the left view of Fig. 1,

Fig. 4 is the assembling structure schematic diagram that the utility model is applied to vacuum circuit breaker,

Fig. 5 is the A-A profile of Fig. 4.

In figure:

The soft electric conductor of 1.1,

1.2, conductive clips,

1.3, conductive connection plates,

1.4. the first screw mounting hole,

1.5. process gap,

1.6. centre bore,

1.8. the second screw mounting hole,

1.9. conductive clip internal thread hole,

1.10. bolt mounting holes,

1.11. upper electric conductor,

1.12. electric conductor is played,

1.13. third screw mounting hole,

1.21. upper clamp,

1.22. lower clamp,

1.31. silver coating,

2. vacuum interrupter,

2.1 moved end conducting rods,

2.2 moving contacts,

3. the first screw,

4. busbar,

5. bolt,

6. the second screw,

7. the 4th screw,

8. insulated connecting rod,

9. static side conductive connection plates,

10. double threaded screw,

11. insulator is operated,

12. support rod,

13. supporting insulator,

14. third screw,

15. vacuum circuit breaker operating mechanism.

Specific embodiment

As shown in FIG. 1 to 3, the technical solution adopted in the utility model includes conductive connection plates 1.3,1.2 and of conductive clip Soft electric conductor 1.1, the conductive connection plates 1.3 are the conductive connection plates of rectangle, are added in the left side of the conductive connection plates 1.3 Work has upper and lower 2 grooves for being used to weld soft electric conductor 1.1, is machined with centre bore 1.6 in the centre of conductive connection plates 1.3, It is machined with the second screw mounting hole 1.8 for installing insulated connecting rod in the conductive connection plates 1.3, is used for and busbar The bolt mounting holes 1.10 of connection and third screw mounting hole 1.13 for connection support bar；

The conductive clip 1.2 is to cut after axially processing conductive clip internal thread hole 1.9 among 1 step-like cuboid The first screw mounting hole is machined at upper clamp 1.21 and lower clamp 1.22, and in the radial direction of upper clamp 1.21 and lower clamp 1.22 1.4, the upper section of first screw mounting hole 1.4 is the ladder unthreaded hole for penetrating through upper clamp 1.21, and lower section is perforation lower clamp 1.22 Internal thread hole, there are the process gaps 1.5 of 2~3mm between upper clamp 1.21 and lower clamp 1.22；

The soft electric conductor 1.1 includes upper electric conductor 1.11 and lower electric conductor 1.12, upper electric conductor 1.11 and lower electric conductor 1.12 are formed by stacking by the sheet copper that multi-layered thickness is 0.01~0.04mm and are in asymmetrical U-shaped, the specific thickness after overlapping Degree and the number of plies are determined that the upper electric conductor 1.11 of the asymmetric U-shaped is led under as quasi- by electric current and radiating condition matching design The long end of electric body 1.12 is respectively welded in 2 grooves up and down of conductive connection plates 1.3, the upper electric conductor 1.11 of asymmetric U-shaped It is welded respectively with upper clamp 1.21 and lower clamp 1.22 with the short end of lower electric conductor 1.12, by upper electric conductor 1.11, upper clamp 1.21 and conductive connection plates 1.3 constitute upside welded type conduction flexible connection structure, by lower electric conductor 1.12, lower clamp 1.22 and lead Electric connection board 1.3 constitutes downside welded type conduction flexible connection structure, leads to constitute for the bilateral welded type of vacuum circuit breaker The right end of electric flexible connection structure, the upper clamp 1.21 and lower clamp 1.22 is inserted in the centre bore among conductive connection plates 1.3 In 1.6, and float in the centre bore 1.6；

In order to improve temperature rise License Value, in the conductive clip internal thread hole 1.9 and conductive connection plates 1.3 of the conductive clip 1.2 The conductive connection surface of the left and right sides carries out silver-plated process and forms silver coating 1.31.

As shown in Fig. 4~Fig. 5, in use, by installing the first screw in the first screw mounting hole 1.4 radially processed 3, and upper clamp 1.21 and lower clamp 1.22 are assembled by the first screw 3 and are clamped in the moved end conducting rod of vacuum interrupter 2 On 2.1, realization 2 moved end conducting rod 2.1 of vacuum interrupter is electrically connected with bilateral welded type conduction flexible connection structure；Pacify in bolt It fills and bolt 5 is installed in hole 1.10, and busbar 4 and conductive connection plates 1.3 are linked together by bolt 5, realize that it is led Electrical connection；It is fixedly connected by the 4th screw 7 with static side conductive connection plates 9 in the right end of vacuum interrupter 2, in order to prevent static side The rotation of conductive connection plates 9 is connect by the second screw 6 with insulated connecting rod 8 in the upper and lower ends of static side conductive connection plates 9, The other end of insulated connecting rod 8 is connect by the second screw 6 with conductive connection plates 1.3, to ensure that the position of vacuum interrupter 2 Accuracy is set, the moved end conducting rod 2.1 for operating insulator 11 and vacuum interrupter 2 is then connected to one by double threaded screw 10 It rises, the assembly of conductive connection plates 1.3 is fixed on by third screw 14 and has been assembled on the support rod 12 in supporting insulator 13, Vacuum circuit breaker operating mechanism 15 and operation insulator 11 are attached；When work, vacuum circuit breaker operating mechanism 15 is exported Linear motion stroke by operation insulator 11 drive 2 moving contact 2.2 of vacuum interrupter movement complete vacuum circuit breaker point Closing operation, be flexible coupling by bilateral welded type conduction realize vacuum circuit breaker breaking-closing operating movement when moving conductive connect It connects.

Claims (6)

1. a kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker, including conductive connection plates (1.3), conduction Press from both sides (1.2) and soft electric conductor (1.1), which is characterized in that be machined with centre bore in the centre of the conductive connection plates (1.3) (1.6), the conductive clip (1.2) is to cut after axially processing conductive clip internal thread hole (1.9) among 1 step-like cuboid It is split into upper clamp (1.21) and lower clamp (1.22), the soft electric conductor (1.1) includes upper electric conductor (1.11) and lower electric conductor (1.12), upper electric conductor (1.11) and lower electric conductor (1.12) are formed by stacking by multilayer sheet copper and are in asymmetrical U-shaped, institute The long end of the upper electric conductor (1.11) and lower electric conductor (1.12) of stating asymmetric U-shaped is welded with conductive connection plates (1.3) respectively, non- The short end of the upper electric conductor (1.11) of symmetrical U-shaped and lower electric conductor (1.12) respectively with upper clamp (1.21) and lower clamp (1.22) Welding, be made of upper electric conductor (1.11), upper clamp (1.21) and conductive connection plates (1.3) on the upside of welded type conduction be flexible coupling knot Structure is made of downside welded type conduction lower electric conductor (1.12), lower clamp (1.22) and conductive connection plates (1.3) and is flexible coupling knot The right end of structure, the upper clamp (1.21) and lower clamp (1.22) is inserted in the intermediate centre bore (1.6) of conductive connection plates (1.3) In, and float in the centre bore (1.6), there are process gaps between the upper clamp (1.21) and lower clamp (1.22) (1.5).

2. a kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker according to claim 1, special Sign is, upper and lower 2 are machined on the left of the conductive connection plates (1.3) for welding the groove of soft electric conductor (1.1).

3. a kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker according to claim 1, special Sign is, is machined with the first screw mounting hole (1.4) in the radial direction of the upper clamp (1.21) and lower clamp (1.22), this first The upper section of screw mounting hole (1.4) is the ladder unthreaded hole for penetrating through upper clamp (1.21), and lower section is the interior of perforation lower clamp (1.22) Threaded hole.

4. a kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker according to claim 1, special Sign is that the conductive connection plates (1.3) are the conductive connection plates of rectangle, processes on the conductive connection plates (1.3) useful In the second screw mounting hole (1.8) of installation insulated connecting rod, the bolt mounting holes (1.10) for being connect with busbar and use In the third screw mounting hole (1.13) of installation support rod.

5. a kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker according to claim 1, special Sign is, the conduction at left and right sides of the conductive clip internal thread hole (1.9) of the conductive clip (1.2) and conductive connection plates (1.3) Connection surface carries out silver-plated process and forms silver coating (1.31).

6. a kind of bilateral welded type conduction flexible connection structure part for vacuum circuit breaker according to claim 1, special Sign is, between the upper clamp (1.21) and lower clamp (1.22) there are process gap (1.5) be 2~3mm.