CN203966963U - A kind of quick acting switching-off structure of vacuum circuit-breaker - Google Patents
A kind of quick acting switching-off structure of vacuum circuit-breaker Download PDFInfo
- Publication number
- CN203966963U CN203966963U CN201420433739.7U CN201420433739U CN203966963U CN 203966963 U CN203966963 U CN 203966963U CN 201420433739 U CN201420433739 U CN 201420433739U CN 203966963 U CN203966963 U CN 203966963U
- Authority
- CN
- China
- Prior art keywords
- gear
- conductive rod
- pull bar
- moving conductive
- moving
- Prior art date
- 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
Links
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a kind of quick acting switching-off structure of vacuum circuit-breaker, comprise vacuum interrupter, indoor moving contact and the fixed contact of being provided with of described vacuum extinction, described moving contact is connected with moving conductive rod, the other end of the relative moving contact of described moving conductive rod is connected with pull bar, between described moving conductive rod and pull bar, be provided with transmission mechanism, described transmission mechanism comprises the first gear and the second gear that are meshed, described the first gear and moving conductive rod form the first linkage portion, described the second gear and pull bar form the second linkage portion, the center of circle of described the first gear is greater than the center of circle of the second gear to the vertical range of pull bar to the vertical range of moving conductive rod, compare with the mode that pull bar of the prior art is directly connected with moving conductive rod, when pull bar moves down with same speed, moving conductive rod of the present utility model is by realize separating brake process with fast speed, arc quenching effect at vacuum interrupter is better.
Description
Technical field
The utility model relates to a kind of vacuum circuit-breaker, and more particularly, it relates to a kind of quick acting switching-off structure of vacuum circuit-breaker.
Background technology
Traditional high-pressure vacuum breaker, comprise three vacuum circuit breaker main and corresponding tripping mechanism, each vacuum circuit breaker main comprises vacuum interrupter, be arranged in the insulated tension pole that the moving contact of vacuum interrupter is connected with fixed contact, with moving contact, the bottom of described insulated tension pole is connected with tripping mechanism, when current overload, described insulated tension pole in the vertical direction under the drive of tripping mechanism moves, and then makes moving conductive rod motion, completes contact or the separation of dynamic and static contact.
And in prior art, tripping mechanism drives moving in vacuum interrupter, the separation of fixed contact or contact, conventionally directly drive by pull bar the moving conductive rod being connected with moving contact, the distance that pull bar pulls and speed are distance and the speed of moving conductive rod separating brake, if need to allow, fixed contact plays the effect of fast arc extinction with high speed separating brake, must allow pull bar pull the moving conductive rod being attached thereto with very fast speed, the mode of this speed by quickening pull bar, will improve the instructions for use of the various aspects of performance of tripping mechanism, not only cost of idleness, and the useful life of reducing tripping mechanism.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of quick acting switching-off structure of vacuum circuit-breaker, by the quick acting switching-off structure of this vacuum circuit-breaker, in the fine solution prior art of energy, if need to allow, fixed contact plays the effect of fast arc extinction with high speed separating brake, must allow pull bar pull the moving conductive rod being attached thereto with very fast speed, the mode of this speed by quickening pull bar, will improve the instructions for use of the various aspects of performance of tripping mechanism, not only cost of idleness, and the problem in the useful life of reduction tripping mechanism.
For achieving the above object, the utility model provides following technical scheme:
A kind of quick acting switching-off structure of vacuum circuit-breaker, comprise vacuum interrupter, indoor moving contact and the fixed contact of being provided with of described vacuum extinction, described moving contact is connected with moving conductive rod, the other end of the relative moving contact of described moving conductive rod is connected with pull bar, between described moving conductive rod and pull bar, be provided with transmission mechanism, described transmission mechanism comprises the first gear and the second gear that are meshed, described the first gear and moving conductive rod form the first linkage portion, described the second gear and pull bar form the second linkage portion, the center of circle of described the first gear is greater than the center of circle of the second gear to the vertical range of pull bar to the vertical range of moving conductive rod.
By adopting technique scheme, trigger tripping mechanism action during when current overload, tripping mechanism will drive moving downward of pull bar, pull bar will drive the motion of the second gear, after twice commutation transmission through the second gear and the first gear, the first gear also will drive moving downward of moving conductive rod, because the diameter of the first gear is identical with the diameter of the second gear, so the second gear being driven by pull bar is identical with the angular displacement being turned over by the first gear of the second gear driven, and the center of circle of described the first gear is greater than the center of circle of the second gear to the vertical range of pull bar to the vertical range of moving conductive rod, thereby the distance moving down when pull bar will be less than the distance moving down of moving conductive rod, realized the speed that moves down of moving conductive rod faster than the effect of the speed that moves down of pull bar, the separating brake process realizing in this way, when pull bar moves down with same speed, moving conductive rod of the present utility model will be realized separating brake process at faster speed, arc quenching effect at vacuum interrupter is better, make tripping mechanism make reduction to the instructions for use of all parts, save the cost of each parts, and increased the useful life of tripping mechanism.
The utility model is further set to: described the first linkage portion comprises and is arranged on first spacing preiection of moving conductive rod one end and is arranged on the extension bar of the first gear with respect to the second gear other end, described extension bar is provided with the first chute, and described the first spacing preiection is connected with the first chute slippage; Described the second linkage portion comprises and is arranged on relative the first gear on the second gear and the second chute of radially offering and is arranged on second spacing preiection of pull bar near second gear one end, and described the second spacing preiection is connected with the second chute slippage.
By adopting technique scheme, moving conductive rod is connected with the extension bar slippage of the other end that is arranged on relative the second gear of the first gear, the mode that the second chute slippage that pull bar radially offers with the another side that is arranged on the second gear and relative the first gear is connected, the center of circle that has ensured the first gear is greater than the center of circle of the second gear to the necessary condition of the vertical range of pull bar to the vertical range of moving conductive rod, and by directly open the mode of chute on the second face of gear, for the use of material has reduced cost.
The utility model is further set to: described the first gear and the second gear are made up of rigid plastics.
By adopting technique scheme, the first gear of being made up of rigid plastics and the second gear, ensureing, on the basis of positive drive, to have increased again the insulation property between moving conductive rod and pull bar, make tripping mechanism and moving conductive rod well insulate and open, improve the useful life of tripping mechanism.
The utility model is further set to: the outer surface of described vacuum interrupter is provided with annular protrusion.
By adopting technique scheme, can effectively increase creepage distance by annular protrusion, effectively suppress punch-through, can reduce the volume of vacuum interrupter by the setting of annular protrusion.
Compared with prior art, the utility model has the advantage of: solved in prior art, directly drive the moving conductive rod being arranged on moving contact to realize moving by tripping mechanism, the mode of fixed contact separating brake and the problem that causes excessive separating brake power to make tripping mechanism increase and reduce accordingly the useful life of tripping mechanism the requirement of each parts, by the way, tripping mechanism can provide less power just can realize same separating brake process, make tripping mechanism make reduction to the instructions for use of all parts, save the cost of each parts, and increase the useful life of tripping mechanism.
Brief description of the drawings
Fig. 1 is the "on" position figure of the quick acting switching-off structure embodiment of a kind of vacuum circuit-breaker of the utility model;
Fig. 2 is the gate-dividing state figure of the quick acting switching-off structure embodiment of a kind of vacuum circuit-breaker of the utility model;
Fig. 3 is the overall schematic of the quick acting switching-off structure embodiment of a kind of vacuum circuit-breaker of the utility model.
In figure, 1, vacuum interrupter; 11, annular protrusion; 2, fixed contact; 3, moving contact; 4, moving conductive rod; 41, the first spacing preiection; 5, bellows shield cover; 6, bellows; 7, the first gear; 71, extension bar; 72, the first chute; 8, the second gear; 81, the second chute; 9, pull bar; 91, the second spacing preiection.
Embodiment
Referring to figs. 1 through Fig. 3, the embodiment of the quick acting switching-off structure to the utility model band resilient coating vacuum circuit-breaker is described in further details.
The present embodiment comprises vacuum interrupter 1, in described vacuum interrupter 1, be provided with moving contact 3 and fixed contact 2, described moving contact 3 is connected with moving conductive rod 4, the other end of described moving conductive rod 4 relative moving contacts 3 is connected with pull bar 9, between described moving conductive rod 4 and pull bar 9, be provided with transmission mechanism, described transmission mechanism comprises the first suitable gear 7 and the second gear 8, described the first gear 7 is identical with the diameter of the second gear 8, described the first gear 7 forms the first linkage portion with moving conductive rod 4, described the first linkage portion comprises and is arranged on first spacing preiection 41 of moving conductive rod 4 one end and is arranged on the extension bar 71 of the first gear 7 with respect to second gear 8 other ends, described extension bar 71 is provided with the first chute 72, described the first spacing preiection 41 is connected with the first chute 72 slippages, described the second gear 8 forms the second linkage portion with pull bar 9, described the second linkage portion comprises and is arranged on relative the first gear 7 on the second gear 8 and the second chute 81 of radially offering and is arranged on second spacing preiection 91 of pull bar 9 near second gear 8 one end, described the second spacing preiection 91 is connected with the second chute 81 slippages, the center of circle of described the first gear 7 is greater than the center of circle of the second gear 8 to the vertical range of pull bar 9 to the vertical range of moving conductive rod 4, for gear is being ensured on the basis of positive drive, can increase again the insulation property between moving conductive rod 4 and pull bar 9, described the first gear 7 and the second gear 8 are made up of rigid plastics, as ABS, for effective volume that suppresses punch-through and reduce vacuum interrupter 1, the outer surface of described vacuum interrupter 1 is arranged to multiple annular protrusions 1111.
According to said structure, trigger tripping mechanism action during when current overload, tripping mechanism will drive moving downward of pull bar 9, pull bar 9 will drive the motion of the second gear 8, after twice commutation transmission through the second gear 8 and the first gear 7, moving downward of the moving conductive rod 4 that the first gear 7 also links drive with it, because the diameter of the first gear 7 is identical with the diameter of the second gear 8, so the second gear 8 being driven by pull bar 9 is identical with the angular displacement that the first gear 7 being driven by the second gear 8 turns over, and the center of circle of described the first gear 7 is greater than the center of circle of the second gear 8 to the vertical range of pull bar 9 to the vertical range of moving conductive rod 4, the center of circle of establishing herein the first gear 7 is x to the vertical range of moving conductive rod 4
1, the center of circle of the second gear 8 is x to the vertical range of pull bar 9
2, and x
1> x
2, mobile angular displacement is α, moving conductive rod 4 moves down distance for L
1, pull bar 9 moves down distance for L
2, learnt by L=x*tan α, work as x
1> x
2time, L
1> L
2thereby, realized the speed that moves down of moving conductive rod 4 faster than the effect of the speed that moves down of pull bar 9, the separating brake process realizing in this way, compare with the mode that moving conductive rod 4 is directly connected with pull bar 9 of the prior art, when pull bar 9 moves down with same speed, moving conductive rod 4 of the present utility model is by realize separating brake process with fast speed, arc quenching effect at vacuum interrupter 1 is better, make tripping mechanism make reduction to the instructions for use of all parts, saved the cost of each parts, and increased the useful life of tripping mechanism.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. the quick acting switching-off structure of a vacuum circuit-breaker, comprise vacuum interrupter, indoor moving contact and the fixed contact of being provided with of described vacuum extinction, described moving contact is connected with moving conductive rod, it is characterized in that, the other end of the relative moving contact of described moving conductive rod is connected with pull bar, between described moving conductive rod and pull bar, be provided with transmission mechanism, described transmission mechanism comprises the first gear and the second gear that are meshed, described the first gear and moving conductive rod form the first linkage portion, described the second gear and pull bar form the second linkage portion, the center of circle of described the first gear is greater than the center of circle of the second gear to the vertical range of pull bar to the vertical range of moving conductive rod.
2. the quick acting switching-off structure of a kind of vacuum circuit-breaker according to claim 1, it is characterized in that, described the first linkage portion comprises and is arranged on first spacing preiection of moving conductive rod one end and is arranged on the extension bar of the first gear with respect to the second gear other end, described extension bar is provided with the first chute, and described the first spacing preiection is connected with the first chute slippage; Described the second linkage portion comprises and is arranged on relative the first gear on the second gear and the second chute of radially offering and is arranged on second spacing preiection of pull bar near second gear one end, and described the second spacing preiection is connected with the second chute slippage.
3. the quick acting switching-off structure of a kind of vacuum circuit-breaker according to claim 1, is characterized in that, described the first gear and the second gear are made up of rigid plastics.
4. the quick acting switching-off structure of a kind of vacuum circuit-breaker according to claim 1, is characterized in that, the outer surface of described vacuum interrupter is provided with annular protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433739.7U CN203966963U (en) | 2014-08-02 | 2014-08-02 | A kind of quick acting switching-off structure of vacuum circuit-breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433739.7U CN203966963U (en) | 2014-08-02 | 2014-08-02 | A kind of quick acting switching-off structure of vacuum circuit-breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203966963U true CN203966963U (en) | 2014-11-26 |
Family
ID=51927515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420433739.7U Expired - Fee Related CN203966963U (en) | 2014-08-02 | 2014-08-02 | A kind of quick acting switching-off structure of vacuum circuit-breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203966963U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023797A (en) * | 2015-08-07 | 2015-11-04 | 马人欢 | Vacuum circuit breaker |
| CN106356241A (en) * | 2016-11-15 | 2017-01-25 | 通用森源（深圳）电气有限公司 | High-stability high-pressure vacuum circuit breaker |
| CN106531545A (en) * | 2016-11-15 | 2017-03-22 | 通用森源（深圳）电气有限公司 | High-voltage vacuum circuit breaker |
| CN108962667A (en) * | 2018-07-05 | 2018-12-07 | 山东普益电气有限公司 | A kind of high pressure bistable state side activated speed vacuum circuit breaker |
| CN109935480A (en) * | 2019-04-29 | 2019-06-25 | 惠安耐亚节能科技有限公司 | A kind of contact arc extinguishing device of breaker |
| CN111681906A (en) * | 2020-03-13 | 2020-09-18 | 浙江城电电气有限公司 | Vacuum circuit breaker |
-
2014
- 2014-08-02 CN CN201420433739.7U patent/CN203966963U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023797A (en) * | 2015-08-07 | 2015-11-04 | 马人欢 | Vacuum circuit breaker |
| CN106356241A (en) * | 2016-11-15 | 2017-01-25 | 通用森源（深圳）电气有限公司 | High-stability high-pressure vacuum circuit breaker |
| CN106531545A (en) * | 2016-11-15 | 2017-03-22 | 通用森源（深圳）电气有限公司 | High-voltage vacuum circuit breaker |
| CN106356241B (en) * | 2016-11-15 | 2018-06-26 | 通用森源（深圳）电气有限公司 | A kind of high stability high-pressure vacuum breaker |
| CN108962667A (en) * | 2018-07-05 | 2018-12-07 | 山东普益电气有限公司 | A kind of high pressure bistable state side activated speed vacuum circuit breaker |
| CN108962667B (en) * | 2018-07-05 | 2023-09-15 | 山东正本电气有限公司 | High-voltage bistable side-driven high-speed vacuum circuit breaker |
| CN109935480A (en) * | 2019-04-29 | 2019-06-25 | 惠安耐亚节能科技有限公司 | A kind of contact arc extinguishing device of breaker |
| CN111681906A (en) * | 2020-03-13 | 2020-09-18 | 浙江城电电气有限公司 | Vacuum circuit breaker |
| CN111681906B (en) * | 2020-03-13 | 2022-06-17 | 安德利集团有限公司 | Vacuum circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203966963U (en) | A kind of quick acting switching-off structure of vacuum circuit-breaker | |
| CN203966962U (en) | A kind of laborsaving minute brake structure of vacuum circuit-breaker | |
| CN102280304B (en) | Moving contact assembly and intelligent electromagnetic isolation driving switch applying same | |
| CN202839451U (en) | Vacuum arc extinguish chamber | |
| CN203733697U (en) | Vacuum circuit breaker for switching capacitor bank gas insulated switch cabinet | |
| CN204117944U (en) | All insulation full-shield sealing body | |
| CN103489704B (en) | A kind of vacuum circuit breaker operating device | |
| CN203456369U (en) | Fixedly-sealed type vacuum circuit breaker | |
| CN105428098A (en) | Double-breakpoint moving contact apparatus | |
| CN202094043U (en) | Moving contact assembly and electromagnetic isolation driving intelligent switch using same | |
| CN201465887U (en) | Switching switch of high voltage reactive compensation capacitor | |
| CN204680609U (en) | A kind of fast arc extinction vacuum circuit-breaker | |
| CN204905146U (en) | Big earthed return change over switch based on double acting explosion chamber | |
| CN204497143U (en) | A kind of high-pressure vacuum breaker | |
| CN105719895A (en) | Vacuum arc-extinguishing chamber of novel double-acting mechanism | |
| CN204257560U (en) | A kind of permanent magnetic drive circuit breaker | |
| CN204390941U (en) | Magnetic blowing arc extinguishing switch | |
| CN203910651U (en) | Novel vacuum circuit breaker | |
| CN2746509Y (en) | Overtravel spring combiner for outdoor AC high-voltage vacuum circuit breaker | |
| CN202363354U (en) | Quick permanent-magnet flexible connector for vacuum circuit breaker | |
| CN202259104U (en) | Stationary contact of circuit breaker | |
| CN202454484U (en) | Low-bouncing solid-sealed polar pole | |
| CN207038428U (en) | It is a kind of to rotate the electrode structure cut-off | |
| CN104465256A (en) | Arc extinguishing chamber for isolation breaker and isolation breaker comprising same | |
| CN104485265B (en) | A kind of permanent magnetic drive breaker |
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: 20141126 Termination date: 20170802 |