CN205303311U - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
- Publication number
- CN205303311U CN205303311U CN201620026585.9U CN201620026585U CN205303311U CN 205303311 U CN205303311 U CN 205303311U CN 201620026585 U CN201620026585 U CN 201620026585U CN 205303311 U CN205303311 U CN 205303311U
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- CN
- China
- Prior art keywords
- moving contact
- switch tube
- circuit breaker
- contact
- vacuum switch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a vacuum circuit breaker, including the cover body and seal in internal vacuum switch tube, upper bracket, the lower carriage of cover, respectively and be fixed with vacuum switch tube between the upper and lower support of cover body rigid coupling, inside static contact and the moving contact that is equipped with relative up -down of vacuum switch tube, the static contact upper end pass behind the vacuum switch tube upper wall with the upper bracket rigid coupling, the moving contact lower extreme is connected with actuating mechanism after passing the vacuum switch tube lower wall, static contact upper end, moving contact lower extreme are held for the wiring. The utility model discloses a vacuum circuit breaker medium dielectric strength is stable, it can the reinforce to cut -off, little, the small in noise, longe -lived of energy consumption, is applicable to frequent operation etc. And requires harsh work occasion, its simple structure, the maintenance, with low costs, pollution -free of being convenient for in addition.
Description
Technical field
This utility model relates to the switchgear of industrial and mining establishment, power plant, transformer station's electric utility control and protection, specifically, is a kind of vacuum circuit breaker.
Background technology
Chopper plays vital effect in the supply of electricity, use; it it is a kind of switching device that can carry within the time of regulation and cut-off under abnormal loop condition; for controlling and protect the electric equipment of power system, chopper includes primary cut-out, low-voltage circuit breaker etc.
Application number be 201210545439.3 Chinese invention patent application disclose a kind of vacuum circuit breaker based on T-shaped double-fracture vacuum interrupter, this chopper has vacuum interrupter, insulation porcelain knob, operating mechanism and control chamber, control chamber has control signal input, have, in insulation porcelain knob, the insulated connecting rod connected with operating mechanism, the upper end of insulated connecting rod connects with the moving conductive rod being placed in fairlead, moving conductive rod is terminated with being placed in the moving contact connecting plate of vacuum interrupter, the two ends, horizontal left and right of moving contact connecting plate are correspondingly provided with left moving contact and right moving contact respectively, above left moving contact and right moving contact, correspondence is fixed with left static contact and right static contact, left static contact connects with inlet wire, right static contact connects with outlet, inlet wire and outlet are all cased with sleeve pipe.
Although such scheme can reach basic to establish disconnected function by cable, but there are the following problems:
One, the above-mentioned vacuum circuit breaker based on T-shaped double-fracture vacuum interrupter includes two moving contacts, two static contacts, electric-conductor quantity is more, causes that its joint face is very big, contact surface resistance is big, inevitably results in the problems such as caloric value is big, being susceptible to danger, safety is difficult to ensure.
Two, the above-mentioned vacuum circuit-breaker insulated effect based on T-shaped double-fracture vacuum interrupter is poor, for the application scenario that voltage is higher, it is easy to Danger Electric shock risk occurs.
Three, the above-mentioned vacuum circuit breaker based on T-shaped double-fracture vacuum interrupter is owing to employing multiple contact, and sealing effectiveness is poor, for the application scenario of bad environments, frequent operation, it is easy to damaging, the life-span is shorter.
Therefore, it is thus achieved that a kind of safety is high, reliability high, adapt to the chopper of severe use occasion becomes the problem of those skilled in the art's primary study.
Utility model content
For solving many defects such as low, the poor reliability of safety of existing chopper existence, the utility model discloses a kind of vacuum circuit breaker, have that connecting-disconnecting function is strong, energy consumption is little, noise is little, life-span length, require the advantages such as harsher workplace suitable in frequent operation etc.
For realizing above-mentioned technical purpose, the utility model discloses a kind of vacuum circuit breaker, including cover body and be closed in the vacuum switch tube in cover body, upper bracket, lower carriage, respectively and be fixed with vacuum switch tube between the affixed upper and lower support of cover body, static contact opposing upper and lower and moving contact it is provided with inside vacuum switch tube, static contact upper end is affixed with upper bracket after vacuum switch tube upper wall, moving contact lower end is connected with driving mechanism after vacuum switch tube lower wall, and static contact upper end, moving contact lower end are terminals; Transmission crank arm, transmission that driving mechanism includes being sequentially connected with are won in succession, transmission seesaw, insulated tension pole, transmission crank arm one end is driven it to rotate by motor or rocking bar, the hinged transmission of the transmission crank arm other end is won in succession one end, transmission is won in succession the other end hinged transmission seesaw one end, the axle affixed with cover body it is installed with in the middle part of transmission seesaw, transmission seesaw rotates around this axle, the hinged insulated tension pole one end of the transmission seesaw other end, and the insulated tension pole other end drives moving contact to move up and down.
Relative to traditional chopper, the vacuum circuit breaker electric-conductor of said structure is few, contact is few, joint face is little, contact surface resistance is little, thus caloric value is little; Meanwhile, this drive mechanism is simple, good reliability, reduces energy consumption and noise, and the function making chopper is relatively reliable, it is adaptable to the occasion of frequent operation.
Further, insulated tension pole affixed insulator successively, disc spring, disc spring is affixed with moving contact lower end.
For improving insulation effect, this utility model, while adopting insulated tension pole, employs insulator as insulating device; When moving contact moves upward collision static contact, disc spring, for reducing the impact force between moving contact and static contact, plays the effect of buffering.
Further, for avoiding moving contact to be likely to the situation of collision vacuum switch tube lower wall, being fixed with cushion pad in this utility model vacuum switch tube, moving contact sequentially passes through cushion pad, vacuum switch tube lower wall.
Further, the static contact in bolt shape, moving contact are respectively provided with head and bar portion, static contact, moving contact head be protruding contact, bar portion passes vacuum switch tube.
The contact electrical wear speed of said structure is little, the life-span is long, and the resistance to voltage levels of contact is high, and after producing electric arc, resume speed is fast, and connecting-disconnecting function is strong.
Further, static contact upper end, moving contact lower end are respectively connected with wire outlet seat.
Further, moving contact lower end and conductive clamp are flexible coupling, and conductive clamp connects wire outlet seat.
Further, for reducing static contact and the contact area of moving contact, minimizing heating further, static contact, moving contact contact surface are slotted.
Further, upper and lower supporting structure is identical, be fixed on cover body inwall by screw.
Further, motor is frequency conversion motor.
The beneficial effects of the utility model are: vacuum circuit breaker dielectric insulation intensity stabilization of the present utility model, connecting-disconnecting function is strong, energy consumption is little, noise is little, the life-span is long, require harsher workplace suitable in frequent operation etc., and its simple in construction, to be easy to maintenance, cost low, pollution-free.
Accompanying drawing explanation
Fig. 1 is schematic diagram under vacuum circuit breaker on-state.
Fig. 2 is schematic diagram under vacuum circuit breaker off-state.
In figure,
1, upper bracket; 2, cover body; 3, lower carriage; 4, motor; 5, transmission crank arm; 6, transmission is won in succession; 7, axle; 8, transmission seesaw; 9, insulated tension pole; 10, insulator; 11, disc spring; 12, moving contact; 13, cushion pad; 14, vacuum switch tube; 15, static contact.
Detailed description of the invention
Below in conjunction with accompanying drawing, structure of the present utility model carried out detailed explanation and explanation.
A kind of vacuum circuit breaker of the present utility model, including drive part and the breaker body part of unitary design, drive part easily updates and replaces.
Specifically, such as Fig. 1, shown in 2, this vacuum circuit breaker includes the cover body 2 being adopted APG technique to build by epoxy resin, there is the anti-creepage advantage such as effective, also include the vacuum switch tube 14 being closed in cover body 2, upper bracket 1, lower carriage 3, vacuum switch tube 14 is pottery or glass material, there is sidewall, upper wall, lower wall, upper bracket 1, lower carriage 3 structure is identical, and it is fixed on cover body 2 inwall by screw, affixed with cover body 2 upper respectively, vacuum switch tube 14 it is fixed with between lower carriage 3, vacuum switch tube 14 has the effect of arc extinguishing, vacuum switch tube 14 inside is provided with relative up and down, static contact 15 and moving contact 12 for chopper break-make, Fig. 1 is on-state, Fig. 2 is off-state, static contact 15 upper end is affixed with upper bracket 1 after vacuum switch tube 14 upper wall, moving contact 12 lower end is connected with driving mechanism after vacuum switch tube 14 lower wall, cushion pad 13 it is fixed with in vacuum switch tube 14, moving contact 12 sequentially passes through cushion pad 13, vacuum switch tube 14 lower wall, cushion pad 13 is used for avoiding moving contact 12 directly to contact vacuum switch tube 14 lower wall when moving downward, static contact 15 upper end, moving contact 12 lower end is terminals, conductive clamp wiring is passed through in moving contact 12 lower end, for convenience of wiring, static contact 15 upper end, moving contact 12 lower end is respectively connected with wire outlet seat, moving contact 12 lower end and conductive clamp are flexible coupling, realize the up and down connection of moving contact 12, in other words, conductive clamp is as moving contact 12, connector between wire outlet seat, time specifically used, the plug that external cable connects is inserted directly into wire outlet seat.
For driving mechanism, such as Fig. 1, shown in 2, driving mechanism includes being sequentially connected with, the transmission crank arm 5 driven successively, transmission wins 6 in succession, transmission seesaw 8, insulated tension pole 9, transmission crank arm 5 one end is driven automatically by motor 4 or its rotation of rocking bar manual actuation, the hinged transmission of transmission crank arm 5 other end is won in succession 6 one end, transmission is won in succession 6 other end hinged transmission seesaw 8 one end, the axle 7 affixed with cover body 2 it is installed with in the middle part of transmission seesaw 8, transmission seesaw 8 rotates around this axle 7, transmission seesaw 8 other end hinged insulated tension pole 9 one end, insulated tension pole 9 other end drives moving contact 12 to move up and down. for realizing insulation better and buffering, in this utility model, insulated tension pole 9 affixed insulator 10 successively, disc spring 11, disc spring 11 is affixed with moving contact 12 lower end, insulator 10 realizes insulating effect, when moving contact 12 contacts with static contact 15, disc spring 11 plays the cushioning effect reducing moving contact 12 with static contact 15 impact force, improve the life-span of moving contact 12 and static contact 15, disc spring 11 quantity of the present utility model can select as required, between disc spring 11, disc spring 11 be fixing connection between moving contact 12, disc spring 11 and insulator 10. in the present embodiment, static contact 15, moving contact 12 are in bolt shape, both has head and bar portion, static contact 15, moving contact 12 head be protruding contact, adopting copper chromium material to make, static contact 15, moving contact 12 contact surface are slotted, to reduce static contact 15, moving contact 12 contact area further, reduce static contact 15, moving contact 12 generates heat, and bar portion passes vacuum switch tube 14,Motor 4 is the frequency conversion motor 4 of adjustable speed, and intelligent drives moving contact 12 moves up and down.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent replacement and simple modifications etc. made in this utility model flesh and blood, should be included within protection domain of the present utility model.
Claims (9)
1. a vacuum circuit breaker, it is characterized in that: include cover body (2) and the vacuum switch tube (14) being closed in cover body, upper bracket (1), lower carriage (3), respectively and be fixed with vacuum switch tube between the affixed upper and lower support of cover body, static contact opposing upper and lower (15) and moving contact (12) it is provided with inside vacuum switch tube, static contact upper end is affixed with upper bracket after vacuum switch tube upper wall, moving contact lower end is connected with driving mechanism after vacuum switch tube lower wall, and static contact upper end, moving contact lower end are terminals; Transmission crank arm (5), transmission that driving mechanism includes being sequentially connected with are won in succession (6), transmission seesaw (8), insulated tension pole (9), transmission crank arm one end is driven it to rotate by motor (4) or rocking bar, the hinged transmission of the transmission crank arm other end is won in succession one end, transmission is won in succession the other end hinged transmission seesaw one end, the axle (7) affixed with cover body it is installed with in the middle part of transmission seesaw, transmission seesaw rotates around this axle, the hinged insulated tension pole one end of the transmission seesaw other end, the insulated tension pole other end drives moving contact to move up and down.
2. vacuum circuit breaker according to claim 1, it is characterised in that: insulated tension pole affixed insulator (10) successively, disc spring (11), disc spring is affixed with moving contact lower end.
3. vacuum circuit breaker according to claim 1 and 2, it is characterised in that: being fixed with cushion pad (13) in vacuum switch tube, moving contact sequentially passes through cushion pad, vacuum switch tube lower wall.
4. vacuum circuit breaker according to claim 3, it is characterised in that: the static contact in bolt shape, moving contact are respectively provided with head and bar portion, static contact, moving contact head be protruding contact, bar portion passes vacuum switch tube.
5. vacuum circuit breaker according to claim 4, it is characterised in that: static contact upper end, moving contact lower end are respectively connected with wire outlet seat.
6. vacuum circuit breaker according to claim 5, it is characterised in that: moving contact lower end and conductive clamp are flexible coupling, and conductive clamp connects wire outlet seat.
7. vacuum circuit breaker according to claim 6, it is characterised in that: static contact, moving contact contact surface are slotted.
8. vacuum circuit breaker according to claim 1, it is characterised in that: upper and lower supporting structure is identical, be fixed on cover body inwall by screw.
9. vacuum circuit breaker according to claim 1, it is characterised in that: motor is frequency conversion motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620026585.9U CN205303311U (en) | 2016-01-12 | 2016-01-12 | Vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620026585.9U CN205303311U (en) | 2016-01-12 | 2016-01-12 | Vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205303311U true CN205303311U (en) | 2016-06-08 |
Family
ID=56476035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620026585.9U Expired - Fee Related CN205303311U (en) | 2016-01-12 | 2016-01-12 | Vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205303311U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847607A (en) * | 2017-01-03 | 2017-06-13 | 镇江华源晋昌电器有限公司 | Breaker operator transmission mechanism |
| CN107170637A (en) * | 2017-07-04 | 2017-09-15 | 合肥东玖电气有限公司 | A kind of vacuum circuit breaker |
| CN108256448A (en) * | 2017-12-29 | 2018-07-06 | 上海义启信息科技有限公司 | A kind of Chinese-character writing recognition methods |
| CN108319896A (en) * | 2017-12-29 | 2018-07-24 | 上海义启信息科技有限公司 | A kind of recognition methods of Chinese-character writing |
| CN108549021A (en) * | 2018-06-21 | 2018-09-18 | 沈阳工业大学 | A kind of experimental rig and method for the research of environment-friendly type gas arc extinction performance |
| CN112331518A (en) * | 2020-11-12 | 2021-02-05 | 南京四方致捷开关有限公司 | Load switch on quick deciliter pre-energy storage type sulfur hexafluoride PGS post |
-
2016
- 2016-01-12 CN CN201620026585.9U patent/CN205303311U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847607A (en) * | 2017-01-03 | 2017-06-13 | 镇江华源晋昌电器有限公司 | Breaker operator transmission mechanism |
| CN107170637A (en) * | 2017-07-04 | 2017-09-15 | 合肥东玖电气有限公司 | A kind of vacuum circuit breaker |
| CN108256448A (en) * | 2017-12-29 | 2018-07-06 | 上海义启信息科技有限公司 | A kind of Chinese-character writing recognition methods |
| CN108319896A (en) * | 2017-12-29 | 2018-07-24 | 上海义启信息科技有限公司 | A kind of recognition methods of Chinese-character writing |
| CN108319896B (en) * | 2017-12-29 | 2021-12-14 | 上海义启信息科技有限公司 | Chinese character writing recognition method |
| CN108256448B (en) * | 2017-12-29 | 2021-12-14 | 上海义启信息科技有限公司 | Chinese character writing identification method |
| CN108549021A (en) * | 2018-06-21 | 2018-09-18 | 沈阳工业大学 | A kind of experimental rig and method for the research of environment-friendly type gas arc extinction performance |
| CN112331518A (en) * | 2020-11-12 | 2021-02-05 | 南京四方致捷开关有限公司 | Load switch on quick deciliter pre-energy storage type sulfur hexafluoride PGS post |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20210112 |