CN204596731U - Novel breaker - Google Patents
Novel breaker Download PDFInfo
- Publication number
- CN204596731U CN204596731U CN201520327220.5U CN201520327220U CN204596731U CN 204596731 U CN204596731 U CN 204596731U CN 201520327220 U CN201520327220 U CN 201520327220U CN 204596731 U CN204596731 U CN 204596731U
- Authority
- CN
- China
- Prior art keywords
- spring
- piston rod
- cushion dashpot
- retainer plate
- spindle drive
- 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
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Vibration Dampers (AREA)
Abstract
A kind of novel breaker, comprise framework, spindle drive axle, vacuum interrupter, buffer, spring operating mechanism, there are moving contact and fixed contact in vacuum extinction indoor; Spring operating mechanism connects moving contact through spindle drive axle, spindle drive axle connects the top of buffer, the action force under spindle drive axis is accepted when breaker open operation action, buffer comprises the piston rod be arranged in cushion dashpot, cushion dashpot top, bottom are respectively equipped with oilhole, and oilhole is connected with fuel reserve tank by pipeline; Be provided with in the middle part of cushion dashpot and cushion dashpot integral structure retainer plate, be provided with sealing ring in the middle part of retainer plate, piston rod is through retainer plate, and the top of piston rod is provided with stopper, upper cover of piston rod between stopper and retainer plate has the first spring, is provided with the second spring between stopper and cushion dashpot; The utility model has three grades of buffering effects, effective to buffer buffers, the bounce-back of contact during breaker open operation can be reduced to minimum degree, extend the useful life of circuit breaker.
Description
Technical field
The utility model belongs to electric equipment, is specifically related to a kind of novel breaker.
Background technology
In the design of electrical power distribution system switch device breaker, coordinating between main shaft with buffer is very accurate, and it is related to the stability of the mechanical property of the performance of circuit breaker own, seems coordinating therefore between main shaft with buffer particularly important.At present, the circuit breaker of most of linear drives realizes spacing mainly through rubber blanket and pad.After breaker open operation, main shaft directly impinges upon on pad, absorbs excess energy by rubber blanket.In this structure, rubber blanket absorbs finite energy and easily causes the distortion of pad after circuit breaker multi-pass operation, so this structure does not almost have effect in separating brake process to the suppression of the disadvantageous bounce-back of circuit breaker performance and these two parameters of overshoot; Therefore this structure can not meet the requirement of new standard; When oil bumper of the prior art exists the situations such as leakage of oil, buffering effect weakens, and causes the infringement of circuit breaker, and circuit breaker tolerance and reliability are reduced.
Utility model content
The purpose of this utility model is to provide a kind of good buffer effect, the novel breaker that reliability is high.
The technical solution of the utility model is:
Novel breaker, comprises framework, spindle drive axle, vacuum interrupter, buffer, spring operating mechanism; Vacuum extinction indoor are provided with moving contact and fixed contact; Spring operating mechanism connects moving contact through spindle drive axle, spindle drive axle connects the top of buffer, the action force under spindle drive axis is accepted when breaker open operation action, buffer comprises the piston rod be arranged in cushion dashpot, cushion dashpot top, bottom are respectively equipped with oilhole, and oilhole is connected with fuel reserve tank by pipeline; Be provided with in the middle part of cushion dashpot and cushion dashpot integral structure retainer plate, be provided with sealing ring in the middle part of retainer plate, piston rod is through retainer plate, and the top of piston rod is provided with stopper, upper cover of piston rod between stopper and retainer plate has the first spring, is provided with the second spring between stopper and cushion dashpot.
Again cushion on the basis of oil buffering when first spring is descending to piston rod, circuit breaker is protected, again cushion on the basis of oil buffering when the second spring is up to piston rod, circuit breaker is protected.First spring, the second spring and oil buffering, improve the buffering effect of buffer, and durability.
Wherein, the elastic force numerical value of the second spring is less than the elastic force numerical value of the first spring, and the elastic force numerical value of the second spring is 2/3 of the elastic force numerical value of the first spring.Second spring force numerical value is less than the elastic force numerical value of the first spring, work and be, when piston rod is descending, second spring has to piston rod the effect of pullling, piston rod 17 is had to the effect of buffering, make buffer have three grades of cushioning effects, if the second spring force numerical value is excessive, larger rebound effect can be produced to piston rod, be unfavorable for better buffering.
Wherein, piston rod and stopper are integral type structure; Integral structure can be cast for integral type, or welding.
The beneficial effects of the utility model are: have three grades of buffering effects, effective to buffer buffers, improve the durability of buffer, the bounce-back of contact during breaker open operation can be reduced to minimum degree, thus the problem solved caused by oil bumper poor performance, extend the useful life of circuit breaker.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the utility model buffer structure schematic diagrames;
Wherein: 1, framework, 2, spindle drive axle, 3, vacuum interrupter, 4, buffer, 5, spring operating mechanism, 6, moving contact, 7, fixed contact, 8, cushion dashpot, 9, oilhole, 10, pipeline, 11, fuel reserve tank, 12, retainer plate, 13, sealing ring, 14, stopper, the 15, first spring, 16, the second spring, 17, piston rod.
Embodiment
Below in conjunction with accompanying drawing 1, the utility model is described in further detail:
As shown in Figure 1, novel breaker, comprises framework 1, spindle drive axle 2, vacuum interrupter 3, buffer 4, spring operating mechanism 5; Moving contact 6 and fixed contact 7 is provided with in vacuum interrupter 3; Spring operating mechanism 5 connects moving contact 6 through spindle drive axle 2, and spindle drive axle 2 connects the top of buffer 4, accepts the downward action force of spindle drive axle 2 when breaker open operation action.
As shown in Figure 2, buffer 4 comprises the piston rod 17 be arranged in cushion dashpot 8, and cushion dashpot 8 top, bottom are respectively equipped with oilhole 9, and oilhole 9 is connected with fuel reserve tank 11 by pipeline 10; Be provided with in the middle part of cushion dashpot 8 and cushion dashpot 8 integral structure retainer plate 12, sealing ring 13 is provided with in the middle part of retainer plate 12, piston rod 17 is through retainer plate 12, the top of piston rod 17 is provided with stopper 14, piston rod 17 between stopper 14 and retainer plate 12 overlaps and has the first spring 15, between stopper 14 and cushion dashpot 8, be provided with the second spring 16; The elastic force numerical value of the second spring 16 is less than the elastic force numerical value of the first spring 15, and the elastic force numerical value of the second spring 16 is 2/3 of the elastic force numerical value of the first spring 15; Piston rod 17 and stopper 14 are integral type structure; Integral structure can be welding manner.
Again cushion on the basis of oil buffering when first 15 pairs, spring piston rod 17 is descending, circuit breaker is protected, again cushion on the basis of oil buffering when the second 16 pairs, spring piston rod 17 is up, circuit breaker is protected.First spring 15, second spring 16 and oil buffering, improve the buffering effect of buffer 4, and durability; Second spring 16 elastic force numerical value is less than the elastic force numerical value of the first spring 15, and when piston rod 17 is descending, the second 16 pairs, spring piston rod 17 has the effect of pullling, and piston rod 17 is had to the effect of buffering, makes buffer have three grades of cushioning effects.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (3)
1. novel breaker, is characterized in that, comprise framework, spindle drive axle, vacuum interrupter, buffer, spring operating mechanism, vacuum extinction indoor are provided with moving contact and fixed contact; Spring operating mechanism connects moving contact through spindle drive axle, spindle drive axle connects the top of buffer, the action force under spindle drive axis is accepted when breaker open operation action, buffer comprises the piston rod be arranged in cushion dashpot, cushion dashpot top, bottom are respectively equipped with oilhole, and oilhole is connected with fuel reserve tank by pipeline; Be provided with in the middle part of cushion dashpot and cushion dashpot integral structure retainer plate, be provided with sealing ring in the middle part of retainer plate, piston rod is through retainer plate, and the top of piston rod is provided with stopper, upper cover of piston rod between stopper and retainer plate has the first spring, is provided with the second spring between stopper and cushion dashpot.
2. novel breaker according to claim 1, is characterized in that, the elastic force numerical value of the second spring is less than the elastic force numerical value of the first spring, and the elastic force numerical value of the second spring is 2/3 of the elastic force numerical value of the first spring.
3. novel breaker according to claim 2, is characterized in that, piston rod and stopper are integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520327220.5U CN204596731U (en) | 2015-05-20 | 2015-05-20 | Novel breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520327220.5U CN204596731U (en) | 2015-05-20 | 2015-05-20 | Novel breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596731U true CN204596731U (en) | 2015-08-26 |
Family
ID=53932857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520327220.5U Expired - Fee Related CN204596731U (en) | 2015-05-20 | 2015-05-20 | Novel breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114429881A (en) * | 2021-12-21 | 2022-05-03 | 平高集团有限公司 | Vacuum circuit breaker |
-
2015
- 2015-05-20 CN CN201520327220.5U patent/CN204596731U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114429881A (en) * | 2021-12-21 | 2022-05-03 | 平高集团有限公司 | Vacuum circuit breaker |
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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 |
Granted publication date: 20150826 Termination date: 20160520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |