CN218215127U - Vacuum bubble positioning structure of switch cabinet breaker - Google Patents

Abstract

The utility model provides a cubical switchboard circuit breaker vacuum bubble location structure belongs to the electrical equipment field. It has solved the current not good enough problem of vacuum bubble installation stability. This cubical switchboard circuit breaker vacuum bulb location structure is including two insulation boards that set up side by side, the vertical setting of vacuum bulb is between two insulation boards, the vacuum bulb upper end is fixed with the backup pad that the level set up, the backup pad both ends all have the plush copper, all be equipped with the jack that matches with the plush copper on two insulation boards, and the plush copper inlays to be established in corresponding the jack, the vacuum bulb lower extreme links firmly with two insulation boards through the insulating frame, homogeneous body shaping has two blend stops on the adjacent both sides wall of two insulation boards, the blend stop is vertical strip and length and extends along vertical direction, two blend stops on the same insulation board are arranged along insulation board length direction and are formed the centre gripping mouth between the two, two centre gripping mouths are stretched into respectively at the backup pad both ends, and backup pad both ends lateral wall is pressed respectively on corresponding two blend stops. The utility model discloses can make the stable installation of vacuum bubble.

Description

Vacuum bubble positioning structure of switch cabinet breaker

Technical Field

The utility model belongs to the electrical equipment field relates to a cubical switchboard circuit breaker, especially a cubical switchboard circuit breaker vacuum bulb location structure.

Background

The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum, has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is popularized to application in a power distribution network.

The existing vacuum circuit breaker comprises a shell, a three-phase vacuum bulb, a vacuum bulb fixed contact and a vacuum bulb moving contact, wherein the shell comprises 2 insulating plates, 3 groups of insulating supports for fixing the three-phase vacuum bulb, a fixed end support and a moving end support, two ends of each insulating support are respectively fixed with the middle parts of the two insulating plates, two ends of each fixed end support are respectively fixed with the bottoms of the two insulating plates, two ends of each moving end support are respectively fixed with the upper parts of the two insulating plates, the vacuum bulb fixed contact is provided with a fixed contact connecting row, the vacuum bulb moving contact is provided with a moving contact flexible connecting plate, and two ends of each moving contact flexible connecting plate are respectively fixed on the walls of the two insulating plates; a common transmission shaft for linkage with an operating mechanism is arranged on each movable end supporting frame, and a cam corresponding to the three-phase vacuum bubble is arranged on the transmission shaft; the vacuum bubble fixed contact is fixedly arranged on the fixed end support, the fixed contact connecting row is clamped between the vacuum bubble fixed contact and the fixed end support, the vacuum bubble moving contact is provided with a transmission shaft at the end part, the transmission shaft penetrates through the middle hole of the flexible connecting plate and is sequentially provided with an upper spring retainer ring, a spring and a lower spring retainer ring from top to bottom, the upper spring retainer ring is abutted against the lower edge of the cam, the lower spring retainer ring is abutted against the upper surface of the flexible connecting plate, the end part of the transmission shaft is radially provided with a wheel shaft, and the wheel shaft is provided with a small wheel matched with the sliding groove of the cam.

In above-mentioned circuit breaker, insulating support links firmly with the insulation board through plush copper and jack cooperation, in practical product, is subject to the machining precision, exists between plush copper and the jack and not join in marriage tight probability, leads to taking place to rock at during operation insulating support, influences circuit breaker work.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a cubical switchboard circuit breaker vacuum bubble location structure that can strengthen vacuum bubble location effect.

The purpose of the utility model can be realized by the following technical proposal: cubical switchboard circuit breaker vacuum bubble location structure, including two insulation boards that set up side by side, the vertical setting of vacuum bubble is between two insulation boards, the vacuum bubble upper end is fixed with the backup pad that the level set up, the backup pad both ends all have the plush copper, all be equipped with the jack that matches with the plush copper on two insulation boards, and the plush copper inlays to be established in corresponding the jack, the vacuum bubble lower extreme links firmly with two insulation boards through the insulating frame, a serial communication port, homogeneous shaping has two blend stops on the both sides wall that two insulation boards are adjacent, the blend stop is vertical strip and length extends along vertical direction, two blend stops on the same insulation board are arranged along insulation board length direction and are formed the centre gripping mouth between the two, the backup pad both ends stretch into two centre gripping mouths respectively, and backup pad both ends lateral wall is pressed respectively on corresponding two blend stops.

The backup pad both ends all tie in two centre gripping mouths, can effectively restrain the backup pad upset and rock, so not only can strengthen vacuum bubble location intensity and stability, can ensure again that the vacuum bubble is in vertical state all the time at the during operation moreover to improve circuit breaker job stabilization nature.

In foretell cubical switchboard circuit breaker vacuum bubble location structure, foretell vacuum bubble has a plurality ofly and follows insulation board length direction equipartition, and two parting beads constitute a set of spacing unit, and four the same and position one-to-one of spacing unit, backup pad, insulating frame and vacuum bubble quantity.

In the switch cabinet breaker vacuum bubble positioning structure, the two insulating plates are both provided with a heat dissipation opening in a horizontal penetrating manner, and the heat dissipation openings are in a strip shape and are vertically arranged; on same insulation board, all be equipped with above-mentioned thermovent between two adjacent spacing units, guaranteeing insulation board intensity with the stable support vacuum bulb under the prerequisite, can accelerate the radiating efficiency between two insulation boards again, further improve circuit breaker job stabilization nature.

In foretell cubical switchboard circuit breaker vacuum bubble location structure, the homogeneous body shaping has the sand grip on the both sides wall that two insulation boards are adjacent, and both length direction of sand grip and insulation board are unanimous, and every sand grip lower extreme all extends to corresponding sand grip, can strengthen insulation board and sand grip intensity simultaneously like this to further strengthen vacuum bubble location intensity, thereby improve circuit breaker job stabilization nature.

In the switch cabinet breaker vacuum bubble positioning structure, the bottom of the insulating plate is integrally formed with a horizontally arranged lug, the length directions of the lug and the insulating plate are consistent, and the width of the lug is greater than that of the insulating plate; the number of the convex blocks on each insulating plate is the same as that of the insulating frame, the positions of the convex blocks are in one-to-one correspondence, and two ends of the insulating frame are respectively pressed and fixed on the two corresponding convex blocks. The thick lug of shaping is connected with the insulation frame contact on the insulation board, can effectively strengthen insulation frame location intensity and stability to improve vacuum bubble installation intensity and stability.

In foretell cubical switchboard circuit breaker vacuum bubble location structure, the lug can be dismantled with the insulator spindle and link firmly, the dismouting of being convenient for.

In foretell cubical switchboard circuit breaker vacuum bubble location structure, be equipped with on the lug and run through the through-hole that sets up along self width direction, correspond on the insulating frame and be equipped with the screw hole, and the lug passes through the screw that the through-hole and screw in correspond the threaded hole through the pole portion and links firmly with the insulating frame, and at this moment, the screw head is in the insulating frame outside, convenient equipment.

As another scheme, in the vacuum bubble positioning structure for a switch cabinet breaker, the protrusion is provided with a positioning hole penetrating along the width direction of the protrusion, the insulation frame is correspondingly formed with a convex column matched with the positioning hole, and the convex column is inserted and embedded in the positioning hole. The positioning hole is matched with the convex column, and the insulation board and the convex block can be detachably and fixedly connected.

In foretell cubical switchboard circuit breaker vacuum bubble location structure, still vertically between two insulation boards set firmly the baffle of making by insulating material, baffle and vacuum bubble quantity are the same and both distribute along insulation board length direction in turn. Baffle and vacuum bubble are arranged in turn to form the wall between two adjacent vacuum bubbles, effectively strengthen the insulating nature between two adjacent vacuum bubbles, when actual design, guarantee like this that insulating nature between two adjacent vacuum bubbles is on the same level with prior art under the prerequisite, the accessible reduces the length of whole circuit breaker by reducing the distance between two adjacent vacuum bubbles, takes in order to reduce the space.

In the vacuum bubble positioning structure of the switch cabinet breaker, two sides of the lower end of each partition plate are respectively pressed on the end surfaces of the corresponding two bumps, and the partition plates are fixedly connected with the corresponding bumps. The partition plate and the insulating frame are positioned on the convex block, so that the processing difficulty of the insulating plate is reduced, and the whole assembly of the circuit breaker is facilitated.

In foretell cubical switchboard circuit breaker vacuum bubble location structure, baffle lower extreme both sides all link firmly with two lugs that correspond respectively through the screw.

Compared with the prior art, this cubical switchboard circuit breaker vacuum bubble location structure has following advantage:

1. the backup pad both ends all tie in two centre gripping mouths, can effectively restrain the backup pad upset and rock, so not only can strengthen vacuum bubble location intensity and stability, can ensure again that the vacuum bubble is in vertical state all the time at the during operation moreover to improve circuit breaker job stabilization nature.

2. Every blend stop lower extreme all extends to corresponding sand grip, can strengthen insulation board and blend stop intensity simultaneously like this to further strengthen vacuum bubble location intensity, thereby improve circuit breaker job stabilization nature.

3. Baffle and vacuum bubble are arranged in turn to form between two adjacent vacuum bubbles and cut off, effectively strengthen the insulating nature between two adjacent vacuum bubbles, when actual design, guarantee like this that insulating nature between two adjacent vacuum bubbles keeps flat with prior art under the prerequisite, the accessible reduces the length that whole circuit breaker was reduced to the distance between two adjacent vacuum bubbles, occupies in order to reduce the space.

4. The partition plate and the insulating frame are positioned on the protruding block, so that the processing difficulty of the insulating plate is reduced, and the whole assembly of the circuit breaker is facilitated.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional structure diagram of the present invention.

Fig. 3 is a schematic view of the connection structure of the insulating plate, the insulating frame and the supporting plate.

Fig. 4 is a schematic view of a coupling structure of an insulating plate and a spacer.

In the figure, 1, an insulating plate; 1a, a jack; 1b, a barrier strip; 1c, a clamping opening; 1d, a bump; 1d1, a through hole; 1d2, screw holes; 1e, convex strips; 1f, a heat dissipation opening; 2. vacuum bubble; 3. a support plate; 3a, a raised head; 4. an insulating frame; 5. a separator.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

This cubical switchboard circuit breaker vacuum bulb location structure is including two insulation boards 1 that set up side by side, and insulation board 1 is vertical setting, and two insulation boards 1 distribute along the width direction of insulation board 1.

As shown in fig. 1 and 2, a vacuum bulb 2 is vertically disposed between two insulating plates 1, a horizontally disposed support plate 3 is fixed to an upper end of the vacuum bulb 2, the support plate 3 is made of an insulating material, which may be plastic or ceramic, and preferably the support plate 3 is made of a plastic material. An insulating frame 4 is fixed at the lower end of the vacuum bubble 2.

Wherein the content of the first and second substances,

the connection between the support plate 3 and the insulating plate 1 is as follows: both ends of the supporting plate 3 are provided with raised heads 3a, the two insulating plates 1 are provided with insertion holes 1a matched with the raised heads 3a, and the raised heads 3a are embedded in the corresponding insertion holes 1 a. In the actual product, 3 both ends of backup pad all have two plush coppers 3a, and two plush coppers 3a that are in same tip distribute along insulation board 1 length direction, and jack 1a and plush coppers 3a quantity are the same and the position one-to-one to fix a position through strengthening backup pad 3 and improve vacuum bubble 2 location intensity and effect.

Further, two retaining strips 1b are integrally formed on two adjacent side walls of the two insulating plates 1, the retaining strips 1b are straight strips, the length of each retaining strip 1b extends in the vertical direction, the two retaining strips 1b on the same insulating plate 1 are arranged in the length direction of the insulating plate 1, a clamping opening 1c is formed between the two retaining strips 1b, two ends of the supporting plate 3 respectively extend into the two clamping openings 1c, and side walls of two ends of the supporting plate 3 are respectively pressed on the two corresponding retaining strips 1 b. 3 both ends of backup pad all tie in two centre gripping mouths 1c, can effectively restrain 3 upsets of backup pad and rock, so not only can strengthen 2 location intensity of vacuum bubble and stability, can ensure again that vacuum bubble 2 is in vertical state throughout at the during operation moreover to improve circuit breaker job stabilization nature.

In the actual product, vacuum bubble 2 has a plurality ofly and along 1 length direction equipartition of insulation board, and two blend stop 1b constitute a set of spacing unit, and spacing unit, backup pad 3, insulating frame 4 and vacuum bubble 2 four the same and position one-to-one of quantity.

The insulating frame 4 and the insulating plate 1 are connected in the following way: as shown in fig. 2 and 3, a horizontally disposed protrusion 1d is integrally formed at the bottom of the insulating plate 1, the length directions of the protrusion 1d and the insulating plate 1 are the same, and the width of the protrusion 1d is greater than the width of the insulating plate 1. The number of the convex blocks 1d on each insulating plate 1 is the same as that of the insulating frames 4, and the positions of the convex blocks 1d correspond to those of the insulating frames 4 one by one, and two ends of each insulating frame 4 are respectively pressed and fixed on the corresponding two convex blocks 1 d. Thicker lug 1d of shaping is connected with the contact of insulating frame 4 on insulating board 1, can effectively strengthen 4 location intensity of insulating frame and stability to improve vacuum bubble 2 installation intensity and stability. Further, the convex block 1d is detachably and fixedly connected with the insulating frame 4, specifically, a through hole 1d1 penetrating through the convex block 1d along the width direction of the convex block is formed in the insulating frame 4, a threaded hole is correspondingly formed in the insulating frame 4, the convex block 1d penetrates through the through hole 1d1 through the rod portion and is screwed into a screw in the corresponding threaded hole to be fixedly connected with the insulating frame 4, and at the moment, the head of the screw is located on the outer side of the insulating frame 4, so that the assembly is facilitated.

It is preferable that the insulating plate 1 is disposed at a central position of the bump 1 d.

As shown in fig. 1 and 2, a partition plate 5 made of an insulating material is vertically and fixedly arranged between the two insulating plates 1, the number of the partition plates 5 and the number of the vacuum bubbles 2 are the same, and the partition plates 5 and the vacuum bubbles 2 are alternately distributed along the length direction of the insulating plates 1, and at this time, the positions of the partition plates 5 and the positions of the insulating frames 4 are also alternately distributed. Baffle 5 and vacuum bubble 2 arrange in turn to form the wall between two adjacent vacuum bubbles 2, effectively strengthen the insulating nature between two adjacent vacuum bubbles 2, when actual design, guaranteeing that insulating nature between two adjacent vacuum bubbles 2 keeps flat with prior art under the prerequisite like this, the accessible reduces the length of whole circuit breaker in the distance between two adjacent vacuum bubbles 2, takes up in order to reduce the space.

Preferably, the partition 5 is made of plastic material, and the partition 5 is installed as follows: as shown in fig. 2 and 4, the two sides of the lower end of each partition plate 5 are respectively pressed on the end faces of the two corresponding bumps 1d, and the partition plates 5 are fixedly connected with the corresponding bumps 1d, at this time, the partition plates 5 and the insulating frames 4 are both positioned on the bumps 1d, so that the processing difficulty of the insulating plate 1 is reduced, and the whole assembly of the circuit breaker is facilitated. Particularly, 5 lower extreme both sides of baffle all link firmly with corresponding two lugs 1d respectively through the screw, and at this moment, be equipped with the connecting hole that supplies the screw to pass on the baffle 5, be equipped with the screw hole 1d2 that supplies screw in on the lug 1 d.

Furthermore, it has sand grip 1e still to unify the integrated into one piece on the adjacent both sides wall of two insulation boards 1, and sand grip 1e and insulation board 1 both length direction are unanimous, and every blend stop 1b lower extreme all extends to corresponding sand grip 1e, can strengthen insulation board 1 and blend stop 1b intensity simultaneously like this to further strengthen vacuum bubble 2 location intensity, thereby improve circuit breaker job stabilization nature. The two insulating plates 1 are both provided with heat dissipation ports 1f in a horizontal penetrating manner, and the heat dissipation ports 1f are strip-shaped and are vertically arranged; on same insulation board 1, all be equipped with above-mentioned thermovent 1f between two adjacent spacing units, guaranteeing insulation board 1 intensity with the 2 prerequisite of stable stay vacuum bubbles under, can accelerate the radiating efficiency between two insulation boards 1 again, further improve circuit breaker job stabilization nature.

Example two

The structure and principle of the second embodiment are basically the same as those of the first embodiment, and different points are as follows: the convex block 1d is provided with a positioning hole which penetrates through the convex block along the width direction of the convex block, and a convex column matched with the positioning hole is correspondingly formed on the insulating frame 4 and is inserted and embedded in the positioning hole. The locating hole and the convex column are matched, and the insulation board 1 and the convex block 1d can be detached and fixedly connected.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. Cubical switchboard circuit breaker vacuum bubble location structure, including two insulation board (1) that set up side by side, vacuum bubble (2) vertical setting is between two insulation board (1), vacuum bubble (2) upper end is fixed with backup pad (3) that the level set up, backup pad (3) both ends all have plush copper (3 a), all be equipped with jack (1 a) that match with plush copper (3 a) on two insulation board (1), and plush copper (3 a) inlay and establish in corresponding jack (1 a), vacuum bubble (2) lower extreme links firmly through insulator bracket (4) and two insulation board (1), a serial communication port, uniform body shaping has two blend stops (1 b) on two adjacent both sides wall of two insulation board (1), blend stop (1 b) are vertical strip and length and extend along vertical direction, two blend stops (1 b) on same insulation board (1) arrange and form centre gripping mouth (1 c) between the two along insulation board (1) length direction, backup pad (3) both ends stretch into two centre gripping mouth (1 c) respectively, and backup pad (3) both ends press respectively and go up two blend stops (1 b) corresponding.

2. The switch cabinet breaker vacuum bubble positioning structure according to claim 1, wherein the vacuum bubbles (2) are distributed uniformly along the length direction of the insulating plate (1), two bars (1 b) form a group of limiting units, and the limiting units, the supporting plate (3), the insulating frame (4) and the vacuum bubbles (2) are same in number and are in one-to-one correspondence in position.

3. The switch cabinet circuit breaker vacuum bubble positioning structure according to claim 2, wherein the two insulating plates (1) are horizontally provided with heat dissipation openings (1 f) in a penetrating manner, and the heat dissipation openings (1 f) are strip-shaped and vertically arranged; the heat dissipation openings (1 f) are formed between every two adjacent limiting units on the same insulating plate (1).

4. The switch cabinet breaker vacuum bubble positioning structure according to claim 2 or 3, wherein two adjacent side walls of the two insulating plates (1) are further integrally formed with protruding strips (1 e), the length directions of the protruding strips (1 e) and the insulating plates (1) are the same, and the lower end of each blocking strip (1 b) extends to the corresponding protruding strip (1 e).

5. The vacuum bubble positioning structure of the switch cabinet breaker according to claim 1, wherein a horizontally arranged bump (1 d) is integrally formed at the bottom of the insulating plate (1), the length directions of the bump (1 d) and the insulating plate (1) are the same, and the width of the bump (1 d) is greater than that of the insulating plate (1); the number of the convex blocks (1 d) on each insulating plate (1) is the same as that of the insulating frames (4), the positions of the convex blocks are in one-to-one correspondence, and two ends of each insulating frame (4) are respectively pressed and fixed on the corresponding convex blocks (1 d).

6. The vacuum bubble positioning structure of the switch cabinet circuit breaker according to claim 5, wherein the projection (1 d) is detachably and fixedly connected with the insulating frame (4).

7. The switch cabinet breaker vacuum bubble positioning structure according to claim 6, wherein the protrusion (1 d) is provided with a through hole (1 d 1) penetrating along its width direction, the insulation frame (4) is correspondingly provided with a threaded hole, and the protrusion (1 d) is fixedly connected with the insulation frame (4) through a screw whose rod passes through the through hole (1 d 1) and is screwed into the corresponding threaded hole.

8. The vacuum bubble positioning structure of the switch cabinet breaker as claimed in claim 6, wherein the protrusion (1 d) is provided with a positioning hole penetrating along its width direction, and the insulation frame (4) is correspondingly formed with a convex pillar matching with the positioning hole, and the convex pillar is inserted into the positioning hole.

9. The switch cabinet breaker vacuum bubble positioning structure according to claim 5, wherein a partition plate (5) made of an insulating material is vertically fixed between the two insulating plates (1), and the number of the partition plates (5) and the number of the vacuum bubbles (2) are the same and the partition plates and the vacuum bubbles are alternately distributed along the length direction of the insulating plates (1).

10. The switch cabinet circuit breaker vacuum bubble positioning structure according to claim 9, wherein both sides of the lower end of each partition plate (5) are respectively pressed on the end surfaces of the corresponding two bumps (1 d), and the partition plate (5) is fixedly connected with the corresponding bump (1 d).

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