CN210110636U - Shell structure of outdoor boundary high-voltage alternating-current vacuum circuit breaker - Google Patents
Shell structure of outdoor boundary high-voltage alternating-current vacuum circuit breaker Download PDFInfo
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- CN210110636U CN210110636U CN201921100500.7U CN201921100500U CN210110636U CN 210110636 U CN210110636 U CN 210110636U CN 201921100500 U CN201921100500 U CN 201921100500U CN 210110636 U CN210110636 U CN 210110636U
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- circuit breaker
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- vacuum circuit
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000009422 external insulation Methods 0.000 description 3
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Abstract
The utility model discloses an outdoor boundary high voltage alternating current vacuum circuit breaker's shell structure relates to circuit breaker box technical field, including the box, one side of box can be dismantled and is connected with the shell, and the shell inner wall is fixed with the insulating layer, is fixed with the metallic shield layer between insulating layer and shell, and the both ends of box are provided with incoming line terminal and leading-out terminal respectively, are provided with the vacuum adsorption piece that is used for preventing that the shell from breaking away from between shell and the box. The unable prevention circuit that exists to prior art discharges, and then produces the problem of electromagnetic wave mutual interference, the utility model discloses an installation metal shield layer can shield the electromagnetic wave that external circuit produced and to the electromagnetic wave external radiation of the influence of internal circuit and inside production. Through the installation flame retardant coating, can keep the normal work of circuit breaker in outdoor conflagration.
Description
Technical Field
The utility model relates to a circuit breaker box technical field, more specifically say, it relates to an outdoor boundary high voltage alternating current vacuum circuit breaker's shell structure.
Background
The outdoor boundary high-voltage alternating-current vacuum circuit breaker is mainly used for switching on and off load current, overload current and short-circuit current of a power system, is suitable for protecting and controlling transformer substations, industrial and mining enterprises, cities and rural power grids, is suitable for places with frequent operation and city grid automatic distribution networks, and is very wide in application.
For the existing outdoor high voltage vacuum circuit breaker, as the chinese patent with patent publication No. CN205692760U, it discloses an outdoor high voltage vacuum circuit breaker, which includes an outdoor high voltage vacuum circuit breaker body. An environment adjusting device is additionally arranged on the outdoor high-voltage vacuum circuit breaker body. The environment adjusting device comprises a ventilation fan, an electrostatic dust screen, an air nozzle, an auxiliary power supply, a temperature sensor, a humidity sensor, a temperature adjusting device and a control circuit. The static dust screen and the control circuit are both installed in the base of the outdoor high-voltage vacuum circuit breaker body. The ventilation fan, the auxiliary power supply and the temperature adjusting device are all connected with the outer surface of the base of the outdoor high-voltage vacuum circuit breaker body in a sliding mode through sliding rails. Temperature sensor, humidity transducer equipartition are on outdoor high-pressure vacuum circuit breaker body base surface.
In the above-mentioned patent, realize the control to outdoor high-pressure vacuum circuit breaker through control circuit, solve outdoor high-pressure vacuum circuit breaker because of the operational failure that adverse environmental conditions caused in the operation process. The outer high-voltage vacuum circuit breaker can discharge in the working process, so that electromagnetic waves are generated, the circuit breaker shell made of plastic cannot play a good shielding role, and then the internal discharge is caused to generate electromagnetic waves to radiate outwards to interfere with the normal work of the control circuit.
SUMMERY OF THE UTILITY MODEL
There is the problem that the inside discharge produced the electromagnetic wave and outwards radiates the control circuit of interference week to prior art, the utility model aims at providing an outdoor boundary high voltage AC vacuum circuit breaker's shell structure, it has the advantage of good shielding performance.
The utility model provides an outdoor boundary high voltage AC vacuum circuit breaker's shell structure, includes the box, one side of box can be dismantled and is connected with the shell, the shell inner wall is fixed with the insulating layer, the insulating layer with be fixed with the metallic shield layer between the shell, the both ends of box are provided with incoming line terminal and outlet terminal respectively, the shell with be provided with between the box and be used for preventing the vacuum adsorption piece that the shell breaks away from.
Through the technical scheme, the box body shell is detachably connected to the box body, so that the maintenance is convenient; the metal shielding layer is fixed in the shell, so that the electromagnetic shielding performance of the shell is improved, and the electromagnetic waves generated by the working discharge of components in the shell are effectively prevented from interfering the normal work of the peripheral control circuit; the insulating layer is arranged, so that the phenomenon that the shielding performance of the metal shielding layer is invalid due to the fact that the internal circuit component is in electrical contact with the metal shielding layer is avoided.
Furthermore, the insulating layer and the metal shielding layer are fixed in the shell through screws, and one ends of the screws penetrate through the insulating layer and the metal shielding layer and are in threaded connection with the inside of the shell.
Through above-mentioned technical scheme, adopt the screw to fix metal shielding layer and insulating layer inside the shell, the metal shielding layer is difficult for shifting or breaking away from, can effectively shield interference signal, and simultaneously, the screw does not pass the box shell, does not influence its leakproofness.
Further, a fireproof layer is arranged between the metal shielding layer and the shell.
Through the technical scheme, the installed fireproof layer is fireproof cloth which is formed by mechanically coating high-temperature glue on the surface of glass fiber cloth, is high-temperature-resistant inorganic fiber, has the silicon dioxide content higher than 96 percent and the softening point close to 1700 ℃, can be used for a long time at 900 ℃, can work for 10 minutes at 1450 ℃ and still can be in a good state after working for 15 seconds at 1600 ℃. The circuit breaker has the characteristics of stable chemical performance, high temperature resistance, ablation resistance and the like, can be prevented from being burnt in outdoor fire, can be broken in time, and can effectively stop loss.
Further, the box lateral wall is followed the shell edge is seted up flutedly, vacuum adsorption spare both ends all are the sucking disc form, the one end joint of adsorbing the piece is in the recess.
Through above-mentioned technical scheme, the shell adopts the absorption piece to adsorb with the box department of meeting, adsorbs the part that the piece protrusion comes and pegs graft in the recess, can make shell and box be connected closely, optimizes whole leakproofness. The adsorption piece both ends all adopt the adsorption disc structure, and when extruding the air between adsorption disc and contact surface, the adsorption disc can adsorb with the contact surface and get very tightly.
Further, the box body is connected with the shell through a clamping groove, the side wall of the box body is provided with a clamping groove along the edge of the shell, and the caliber of the clamping groove is gradually increased along the depth direction of the clamping groove.
Through above-mentioned technical scheme, gas gets into the adsorption piece and probably leads to adsorbing not tightly, adopts the draw-in groove to connect fixed shell and has avoided adsorbing the not tight bad problem of leakproofness that produces because of the adsorption piece. The caliber of the clamping groove is gradually increased along the depth direction, and the edge of the box body in clamping fit with the clamping groove is easy to enter and difficult to exit and is not easy to fall off.
Furthermore, the incoming line terminal and the outgoing line terminal are respectively provided with a silicon rubber tube for insulation.
Through above-mentioned technical scheme, adopt the silicone rubber tube to make insulating distance between the binding post abundant, the external insulation characteristic is good.
Furthermore, an explosion-proof device for preventing explosion or preventing the leakage of the explosive splashes is arranged at the top of the box body.
Through the technical scheme, if short circuit fault occurs in the shell and explosion occurs, the explosion-proof device can effectively prevent high-temperature gas or splashes from being leaked, and therefore practical safety performance is improved.
Furthermore, the box body and the shell are made of corrosion-resistant material aluminum alloy.
Through above-mentioned technical scheme, the aluminum alloy material quality is light, easily produces the oxide film, plays the guard action, and then corrosion-resistant, extension outdoor boundary high voltage AC vacuum circuit breaker's life.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the box body shell is detachably connected to the box body, so that the maintenance is convenient; the metal shielding layer is arranged on the inner wall of the shell, so that the electromagnetic shielding performance of the shell is improved, and the normal work of the peripheral control circuit is effectively prevented from being interfered by electromagnetic waves generated by the working discharge of components in the shell;
(2) furthermore, a plurality of vacuum adsorption pieces are adsorbed at the joint of the shell and the box body, a groove is formed at the joint of the box body and the adsorption pieces, the adsorption pieces are adsorbed and matched in the groove, and meanwhile, the clamping groove is adopted for fixing, so that the overall sealing performance is optimized;
(3) furthermore, an explosion-proof device is arranged at the top of the box body, so that even if the explosion is caused by the short-circuit fault inside the box body, high-temperature gas or splashes cannot be leaked out, and the practical safety performance is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a partially enlarged view of portion B of fig. 2.
Reference numerals: 1. a box body; 2. a housing; 3. a metal shielding layer; 4. an insulating layer; 5. an adsorbing member; 6. a screw; 7. a fire barrier layer; 8. an incoming terminal; 9. an outlet terminal; 10. a silicone rubber tube; 11. a groove; 12. an explosion-proof device; 13. a card slot; 14. and (7) clamping blocks.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following provides a further detailed description of the present invention with reference to the following embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1 and fig. 3, a box 1 structure of an outdoor boundary high-voltage ac vacuum circuit breaker comprises a box 1, and a housing 2 is connected to the box 1. The metal shielding layer 3 is arranged in the shell 2, and the metal shielding layer 3 is made of a purple copper wire mesh, so that the metal shielding layer has good shielding performance, is soft in texture and has good ductility, and can effectively shield the influence of external electromagnetic waves on an internal circuit and the electromagnetic waves generated inside from the external radiation.
The metal shielding layer 3 is covered with an insulating layer 4, a fireproof layer 7 is arranged between the metal shielding layer 3 and the shell 2, the fireproof layer 7 is fireproof cloth formed by the surface of glass fiber cloth through high-temperature glue of a mechanical coating, is high-temperature-resistant inorganic fiber, has the silicon dioxide content higher than 96 percent and the softening point close to 1700 ℃, can be used for a long time at 900 ℃, can work for 10 minutes at 1450 ℃, and still keeps in a perfect state after working for 15 seconds at 1600 ℃. Because the circuit breaker has the characteristics of stable chemical property, high temperature resistance, ablation resistance and the like, the circuit breaker can be kept from being burnt in outdoor fire, the screw 6 penetrates through the insulating layer 4, the metal shielding layer 3 and the fireproof layer 7 are in threaded connection with the shell 2, and the screw 6 does not penetrate through the shell 2. The metal shielding layer 3, the fire-proof layer 7 and the insulating layer 4 are not easy to shift or separate by adopting a mode of fixing through the screws 6. At the same time, the screws 6 do not penetrate the casing 2, without affecting its tightness.
As shown in fig. 2 and 3, a plurality of grooves 11 have been seted up along 2 edges of shell to 1 lateral wall of box, and groove 11 is the round platform form, and the aperture of groove 11 increases gradually along its depth direction, and the joint has adsorption element 5 in the groove 11, and adsorption element 5 and groove 11 one-to-one, and the both ends of adsorption element 5 are the adsorption disc, and one end adsorbs on the edge of shell 2, and the other end adsorbs in groove 11 of box 1. When the gas between the adsorbing member 5 and the contact surface is squeezed out, the adsorbing member 5 can be in close contact with the contact surface. The groove 11 is provided for placing the adsorption part 5, so that the box body 1 is tightly connected with the shell 2.
The box body 1 is connected with the shell 2 through the clamping groove 13, the clamping groove 13 is formed in the outer portion of the adsorption part 5 at the edge where the box body 1 is in contact with the shell 2, the clamping block 14 matched with the clamping groove 13 is formed in the edge of the shell 2, and the clamping connection of the box body 1 and the shell 2 is achieved. The caliber of the card slot 13 gradually increases along the depth direction. The clamping block 14 clamped and matched with the clamping groove 13 is easy to enter and difficult to exit and is not easy to fall off. The mode that the joint is connected is easily dismantled, also makes box 1 and shell 2 realize seamless connection easily, and shell 2 is difficult for rocking. The problem of poor sealing performance caused by loose adsorption of the adsorption piece 5 is avoided, double protection is achieved, and the overall sealing performance is better.
An incoming line terminal 8 is arranged at one end of the box body 1, an outgoing line terminal 9 is arranged at the other end of the box body, a silicon rubber pipe 10 is arranged on the incoming line terminal 8 and the outgoing line terminal 9, the silicon rubber pipe 10 is adopted to enable the insulation distance between the incoming line terminal and the outgoing line terminal to be sufficient, and the external insulation characteristic is excellent. The explosion-proof device 12 is installed on the top of the box body 1, the explosion-proof device 12 is the prior art, the explosion-proof device in the Chinese patent with the patent publication number of CN109408875A is adopted, if a short circuit fault occurs inside the explosion-proof device, high-temperature gas or splashes cannot be leaked out, and the use safety is improved.
The box body 1 and the shell 2 are made of aluminum alloy, and because the aluminum alloy is light in weight, an oxide film is easily generated, the protection effect is achieved, the corrosion resistance is achieved, and the service life of the box body 1 is prolonged. The screw 6 is made of stainless steel, so that the screw cannot rust and has a longer service life.
In summary, the following steps:
when the utility model is used, the shell 2 of the box body 1 is detachably connected on the box body 1, the insulating layer 4 is fixed in the shell 2, the metal shielding layer 3 and the fireproof layer 7 are arranged between the shell 2 and the insulating layer 4, and the metal shielding layer 3 and the insulating layer 4 are fixed in the shell 2 by adopting the screw 6; two ends of the box body 1 are respectively provided with an incoming line terminal 8 and an outgoing line terminal 9 for connecting an external circuit, and the incoming line terminal 8 and the outgoing line terminal 9 are provided with insulating devices; a plurality of vacuum adsorption pieces 5 are adsorbed at the joint of the shell 2 and the box body 1, a groove 11 is formed at the joint of the box body 1 and the adsorption pieces 5, and the adsorption pieces 5 are clamped and matched in the groove 11; the box body 1 is connected with the shell 2 through the clamping groove 13, the clamping groove 13 is formed in the outer portion of the adsorption part 5 at the edge where the box body 1 is in contact with the shell 2, the clamping block 14 matched with the clamping groove 13 is formed in the edge of the shell 2, and the clamping connection of the box body 1 and the shell 2 is achieved. The poor sealing property caused by the loose adsorption of the adsorption piece 5 is compensated, and the overall sealing property is optimized; by arranging the incoming line terminal 8 and the outgoing line terminal 9 at two ends of the box body 1 and installing the silicon rubber tube 10 on the incoming line terminal 8 and the outgoing line terminal 9, the insulation distance between the wiring terminals is sufficient, and the external insulation property is excellent; by installing the explosion-proof device 12 on the top of the case 1, even if an internal failure occurs, high-temperature gas or spatter does not leak out.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an outdoor boundary high voltage AC vacuum circuit breaker's shell structure, includes box (1), its characterized in that, one side of box (1) can be dismantled and be connected with shell (2), shell (2) inner wall is fixed with insulating layer (4), insulating layer (4) with be fixed with metallic shield layer (3) between shell (2), the both ends of box (1) are provided with incoming line terminal (8) and leading-out terminal (9) respectively, shell (2) with be provided with between box (1) and be used for preventing vacuum adsorption spare (5) that shell (2) break away from.
2. An outdoor boundary high voltage ac vacuum circuit breaker casing structure according to claim 1, characterized in that said insulating layer (4) and said metal shielding layer (3) are fixed in said casing (2) by screws (6), one end of said screws (6) penetrates said insulating layer (4) and said metal shielding layer (3) and is screwed in said casing (2).
3. An outdoor demarcation high voltage alternating current vacuum circuit breaker housing structure according to claim 2, characterized in that a fire-proof layer (7) is further arranged between the metal shielding layer (3) and the outer casing (2).
4. The casing structure of an outdoor demarcation high-voltage alternating-current vacuum circuit breaker according to claim 1, characterized in that a groove (11) is formed in the side wall of the box body (1) along the edge of the shell (2), both ends of the vacuum absorbing member (5) are in a sucker shape, and one end of the absorbing member (5) is clamped in the groove (11).
5. The casing structure of an outdoor demarcation high-voltage alternating-current vacuum circuit breaker according to claim 4, characterized in that the box body (1) is connected with the outer casing (2) in a clamping manner, a clamping groove (13) is formed in the side wall of the box body (1) along the edge of the outer casing (2), and the caliber of the clamping groove (13) is gradually increased along the depth direction of the clamping groove.
6. An outdoor demarcation high voltage alternating current vacuum circuit breaker housing structure according to claim 1, characterized in that a silicone rubber tube (10) for insulation is mounted on the incoming line terminal (8) and the outgoing line terminal (9) respectively.
7. An outdoor boundary high voltage ac vacuum circuit breaker casing structure according to claim 1, characterized in that the top of said box body (1) is installed with an explosion-proof device (12) for preventing explosion or preventing the leakage of explosive splashes.
8. An outdoor demarcation high voltage alternating current vacuum circuit breaker shell structure according to claim 1, characterized in that the box body (1) and the outer shell (2) are made of corrosion resistant material aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100500.7U CN210110636U (en) | 2019-07-13 | 2019-07-13 | Shell structure of outdoor boundary high-voltage alternating-current vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100500.7U CN210110636U (en) | 2019-07-13 | 2019-07-13 | Shell structure of outdoor boundary high-voltage alternating-current vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210110636U true CN210110636U (en) | 2020-02-21 |
Family
ID=69566432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921100500.7U Expired - Fee Related CN210110636U (en) | 2019-07-13 | 2019-07-13 | Shell structure of outdoor boundary high-voltage alternating-current vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210110636U (en) |
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2019
- 2019-07-13 CN CN201921100500.7U patent/CN210110636U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200221 |