CN206388634U - A kind of high voltage load switch suitable for cable branch box - Google Patents
A kind of high voltage load switch suitable for cable branch box Download PDFInfo
- Publication number
- CN206388634U CN206388634U CN201720079299.3U CN201720079299U CN206388634U CN 206388634 U CN206388634 U CN 206388634U CN 201720079299 U CN201720079299 U CN 201720079299U CN 206388634 U CN206388634 U CN 206388634U
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- Prior art keywords
- load switch
- voltage load
- high voltage
- cable
- bus
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Abstract
The utility model discloses a kind of high voltage load switch suitable for cable branch box, including bus-bar room and cable vault, the bottom of the bus-bar room is fixedly connected with cable vault, the side of the cable vault is fixedly connected with supporting plate, high voltage load switch is installed at the top of supporting plate, the high voltage load switch is made up of high-voltage load switch shell, vacuum interrupter, rim brake and support, and the vacuum interrupter is made up of ceramic package, sealing shell, static side conducting rod, static side cover plate and moving conductive rod.This is applied to the high voltage load switch of cable branch box; interface in the outside of ceramic package and static side cover plate and static side conducting rod and moved end cover plate and ceramic package injects epoxy resin; using APG technique sealings; sealing shell prevents the shock of outer bound pair vacuum interrupter and the infringement of filthy and condensation; realize that high voltage load switch is minimized; electric life length, transfer current are big, dielectric level is high and simple to operate, while being played a very good protection to cable branch box.
Description
Technical field
The utility model is related to high voltage load switch technical field, and a kind of specially high pressure suitable for cable branch box is born
Lotus switchs.
Background technology
Electric power is one of important energy source of China, and laying of each city of China to electric power at present requires very high,
But technology, safe, dust-proof, moistureproof, antitheft, flood fighting water of equipment etc. will often be reached in all directions in laying, and it is electric
Cable feeder pillar is exactly one of visual plant in power equipment, and existing cable branch box uses high voltage load switch, but with
Urban and rural power grids sharp increase, the raising of state's electricity reliability requirement, the demand to high voltage load switch increases sharply, indoor high-voltage
Vacuum load switch is the power equipment that China's power transmission and transformation system, upgrading urban and rural power grids and many-sided infrastructure construction are badly in need of.
At present, the vacuum interrupter used in high voltage load switch largely uses traditional assembly type pole, the insulation of vacuum interrupter
Shell exposes in atmosphere, exists by extraneous dust, moisture contamination, this requires the shell of vacuum interrupter to have enough length
Degree, it is impossible to realize the miniaturization of switch, also influences the Performance And Reliability of vacuum interrupter.Weak point of the prior art and
A kind of vacuum load switch for household simple in construction, easy to operate, practical is provided.
Utility model content
The purpose of this utility model is to provide a kind of high voltage load switch suitable for cable branch box possess the life-span
Long, good insulating and the advantage for being conducive to protecting cable branch box, solve the problems of the prior art.
To achieve the above object, the utility model provides following technical scheme：
A kind of high voltage load switch suitable for cable branch box, including bus-bar room and cable vault, the top of the bus-bar room
Portion is provided with top cover, and the inside of bus-bar room is provided with bus-bar room main body, and being connected with triangle on bus-bar room renovates, in bus
The inside of room main body is provided with cable adapter, and the bottom of the bus-bar room is fixedly connected with cable vault, the both sides in cable vault
Heat dissipation grid is equipped with, the side of the cable vault is fixedly connected with supporting plate, high voltage load is provided with the top of supporting plate
Switch, the two ends of high voltage load switch are in series with fuse, and fuse is opened by cable connection cable room, the high voltage load
Pass is made up of high-voltage load switch shell, vacuum interrupter, rim brake and support, and high-voltage load switch shell is fixed by support pacifies
On the supporting plate, high-voltage load switch shell is fixedly connected dress with support, true in being internally provided with for high-voltage load switch shell
Empty arc-chutes, are provided with rim brake in the side of high-voltage load switch shell, the vacuum interrupter by ceramic package, sealing shell,
Sealing shell is provided with the outside of static side conducting rod, static side cover plate and moving conductive rod composition, ceramic package, in one end of ceramic package
Static side cover plate is provided with, static side conducting rod is provided with static side cover plate, moved end cover plate is set in the opposite side of ceramic package,
Moved end cover plate is provided with moving conductive rod.
It is preferred that, the sealing shell uses APG technique sealings.
It is preferred that, the proportioning of the APG of sealing shell material for epoxy resin, curing agent, silicon powder and pigment by mass
It is 1 to calculate proportioning:1:3.5:0.02.
It is preferred that, the inside of the ceramic package is filled with SF6 gases.
It is preferred that, the moving conductive rod and static side conducting rod are equipped with contact on the port of Ceramic shell internal.
Compared with prior art, the beneficial effects of the utility model are as follows：
High voltage load switch of the present utility model suitable for cable branch box, in the outside of ceramic package and static side cover plate
Epoxy resin is injected with the interface of static side conducting rod and moved end cover plate and ceramic package, using APG technique sealings, sealing shell is prevented
The only shock of outer bound pair vacuum interrupter and the infringement of filthy and condensation, realizes that high voltage load switch is minimized, and electric life length, turns
Shifting electric current is big, dielectric level is high and simple to operate, while being played a very good protection to cable branch box.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is the schematic internal view of high voltage load switch of the present utility model；
Fig. 3 is the front view of vacuum interrupter of the present utility model；
Fig. 4 is vacuum interrupter side view of the present utility model.
In figure：1 top cover, 2 bus-bar rooms, 21 triangles are renovated, 22 bus-bar room main bodys, 3 cable vaults, 4 heat dissipation grids, 5 cables
Wire terminal, 6 cables, 7 high voltage load switches, 71 high-voltage load switch shells, 72 vacuum interrupters, 721 ceramic packages, 722
Sealing shell, 723 static side conducting rods, 724 static side cover plates, 725 moved end cover plates, 726 moving conductive rods, 73 rim brakes, 74 supports, 8 supports
Plate, 9 fuses.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-4, a kind of high voltage load switch suitable for cable branch box, including bus-bar room 2 and cable vault 3 are referred to,
Cable vault 3 is connected to cable, and the top of bus-bar room 2 is provided with top cover 1, and top cover 1 is played a protective role, and the inside of bus-bar room 2 is provided with
Bus-bar room main body 22, triangle is connected with bus-bar room 2 and renovates 21, and triangle renovates 21 and is easy to open, in bus-bar room
The inside of main body 22 is provided with cable adapter 5, and cable adapter 5 is used for wiring, and the bottom of bus-bar room 2 is fixedly connected with cable
Room 3, heat dissipation grid 4 is equipped with the both sides of cable vault 3, and heat dissipation grid 4 is used for radiating, and the side of cable vault 3 is fixedly connected with
Supporting plate 8, high voltage load switch 7 is provided with the top of supporting plate 8, and supporting plate 8 is used for supporting installation high voltage load switch 7,
The two ends of high voltage load switch 7 are in series with fuse 9, and high voltage load switch 7 is used in series with fuse 9, and cable run is risen
To protective effect, fuse 9 is by the connection cable room 3 of cable 6, and high voltage load switch 7 is by high-voltage load switch shell 71, true
Empty arc-chutes 72, rim brake 73 and support 74 are constituted, and high-voltage load switch shell 71 is fixedly mounted on supporting plate 8 by support 74
On, high-voltage load switch shell 71 is fixedly connected with support 74, the support high-voltage load switch shell 71 of support 74, in high voltage load
Switch case 71 is internally provided with vacuum interrupter 72, and the side of high-voltage load switch shell 71 is provided with rim brake 73, hand
Lock 73 can be realized manually operated, and vacuum interrupter 72 is by ceramic package 721, sealing shell 722, static side conducting rod 723, static side lid
Plate 724 and moving conductive rod 725 are constituted, and the inside of ceramic package 721 is filled with SF6 gases, SF6 gases have excellent insulation and
Arc extinction performance, makes the connecting-disconnecting function of high voltage load switch 7 strong, and fracture voltage is suitable to be made higher, it is allowed to which continuous open and close times are more,
Suitable for frequent operation, noise is small, no fire hazard, and electromechanical wear is small etc., is a kind of non-maintaining on-load switch of excellent performance,
When electronics and SF6 molecule contacts almost 100% mixing and constitute weight anion, electric eliminating of this performance to remaining arc column
From and arc extinguishing have great use value, i.e. SF 6 that there is good elecrtonegativity, its molecule can catch free electron rapidly and
Form anion.The electric action of these anions is very slow, so that the recovery rate of arc gap dielectric strength is accelerated, because
This has good arc extinction performance, and is never degenerated after arc extinguishing, reusable, so that on-load switch has the longer use longevity
Life, the outside of ceramic package 721 is provided with sealing shell 722, and sealing shell 722 uses APG technique sealings, and sealing shell 722 prevents outer
The shock of bound pair vacuum interrupter 72 and the infringement of filthy and condensation, realize the miniaturization of high voltage load switch, electric life length, turn
Shifting electric current is big, dielectric level is high, simple operation and other advantages, and the proportioning of the APG material of sealing shell 722 is epoxy resin, curing agent, silicon
Micro mist and pigment match as 1 by mass:1:3.5:0.02, it is ensured that solidification effect is good, using effect is good, in ceramic package
721 one end is provided with static side cover plate 724, and the shell of vacuum interrupter 72 commonly uses three kinds of materials, devitrified glass, glass and pottery
Porcelain, due to devitrified glass price costly, thus did not obtain practical application, glass structure intensity is poor, and usage amount is
Gradually decrease；Ceramic combination property is best, thus most widely used, and the main function of ceramic package 721 is to play insulating supporting
Effect, the interface of static side conducting rod 723, static side cover plate 724 and static side conducting rod 723 is provided with static side cover plate 724
Epoxy resin is injected, moved end cover plate 725 is set in the opposite side of ceramic package 721, moving conductive rod is provided with moved end cover plate 725
726, the interface injection epoxy resin of moved end cover plate 725 and ceramic package 721, epoxy resin is by moved end cover plate 725 and ceramics
The interface of shell 721 is sealed, epoxy resin can as a part major insulation, while also function to mechanical support, electric field
Distribution and stress are better than variously-shaped panel structure, and the dielectric strength of epoxy resin is 5~6 times of air, can be significantly
Raising dielectric strength, moved end cover plate 725 typically adopts and is made from an insulative material, and the effect of guiding is primarily served, while preventing from leading
Electric current in electrical circuit is flow on bellows, influences the life-span of vacuum interrupter 72, the circle centre position of cover plate 725 is connected with moved end
Moving conductive rod 726, moving conductive rod 726 is made of oxygen-free copper, primarily serves the effect of conducting electric current, moving conductive rod 725 and quiet
End conducting rod 723 is equipped with contact on the port inside ceramic package 721.
In summary：This is applied to the high voltage load switch of cable branch box, in the outside of ceramic package 721 and static side lid
The interface injection epoxy resin of plate 724 and static side conducting rod 723 and moved end cover plate 725 and ceramic package 721, using APG works
Skill sealing, sealing shell 722 prevents the shock of outer bound pair vacuum interrupter 72 and the infringement of filthy and condensation, realizes that high voltage load is opened
Miniaturization is closed, electric life length, transfer current are big, dielectric level is high and simple to operate, while being played well to cable branch box
Protective effect.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of high voltage load switch suitable for cable branch box, including bus-bar room (2) and cable vault (3), it is characterised in that：
Top cover (1) is provided with the top of the bus-bar room (2), the inside of bus-bar room (2) is provided with bus-bar room main body (22), in bus-bar room
(2) triangle is connected with and renovates (21), cable adapter (5) is installed in the inside of bus-bar room main body (22), it is described
The bottom of bus-bar room (2) is fixedly connected with cable vault (3), and heat dissipation grid (4), the electricity are equipped with the both sides of cable vault (3)
The side of cable room (3) is fixedly connected with supporting plate (8), and high voltage load switch (7), high pressure are provided with the top of supporting plate (8)
The two ends of on-load switch (7) are in series with fuse (9), and fuse (9) passes through cable (6) connection cable room (3), the high pressure
On-load switch (7) is made up of high-voltage load switch shell (71), vacuum interrupter (72), rim brake (73) and support (74), high pressure
Load switch shell (71) is fixedly mounted in supporting plate (8) by support (74), high-voltage load switch shell (71) and support
(74) it is fixedly connected, vacuum interrupter (72) is internally provided with high-voltage load switch shell (71), in high voltage load switch
The side of housing (71) is provided with rim brake (73), and the vacuum interrupter (72) is by ceramic package (721), sealing shell (722), quiet
Conducting rod (723), static side cover plate (724) and moving conductive rod (726) composition are held, ceramic package is provided with sealing on the outside of (721)
Shell (722), static side cover plate (724) is provided with one end of ceramic package (721), and static side is provided with static side cover plate (724)
Conducting rod (723), sets moved end cover plate (725), provided with dynamic on moved end cover plate (725) in the opposite side of ceramic package (721)
Conducting rod (726).
2. a kind of high voltage load switch suitable for cable branch box according to claim 1, it is characterised in that：It is described solid
Capsule (722) uses APG technique sealings.
3. a kind of high voltage load switch suitable for cable branch box according to claim 2, it is characterised in that：It is described solid
It is 1 that the proportioning of the APG material of capsule (722), which is that epoxy resin, curing agent, silicon powder and pigment match by mass,:1:3.5:
0.02。
4. a kind of high voltage load switch suitable for cable branch box according to claim 1, it is characterised in that：The pottery
The inside of ceramic shell (721) is filled with SF6 gases.
5. a kind of high voltage load switch suitable for cable branch box according to claim 1, it is characterised in that：It is described dynamic
Conducting rod (726) and static side conducting rod (723) are equipped with contact on the internal port of ceramic package (721).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720079299.3U CN206388634U (en) | 2017-01-19 | 2017-01-19 | A kind of high voltage load switch suitable for cable branch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720079299.3U CN206388634U (en) | 2017-01-19 | 2017-01-19 | A kind of high voltage load switch suitable for cable branch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206388634U true CN206388634U (en) | 2017-08-08 |
Family
ID=59494701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720079299.3U Expired - Fee Related CN206388634U (en) | 2017-01-19 | 2017-01-19 | A kind of high voltage load switch suitable for cable branch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206388634U (en) |
-
2017
- 2017-01-19 CN CN201720079299.3U patent/CN206388634U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20190119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |