CN103456556A - Long-service life corrugated pipe for vacuum arc extinguish chamber - Google Patents
Long-service life corrugated pipe for vacuum arc extinguish chamber Download PDFInfo
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- CN103456556A CN103456556A CN2013104389781A CN201310438978A CN103456556A CN 103456556 A CN103456556 A CN 103456556A CN 2013104389781 A CN2013104389781 A CN 2013104389781A CN 201310438978 A CN201310438978 A CN 201310438978A CN 103456556 A CN103456556 A CN 103456556A
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- China
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- corrugated pipe
- vacuum arc
- extinguish chamber
- bellows
- arc extinguish
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Abstract
The invention belongs to the field of electric vacuum device technological structure design, and relates to an elastic element used for a vacuum arc extinguish chamber, namely, a corrugated pipe. The corrugated pipe is suitable for prolonging the mechanical life of the vacuum arc extinguish chamber and is more reliable. According to the long-service life corrugated pipe for the vacuum arc extinguish chamber, the structure of the corrugated pipe is redesigned for solving the problems and defects of a traditional corrugated pipe for the vacuum arc extinguish chamber, the service life of the corrugated pipe is long, and the mechanical life of the vacuum arc extinguish chamber is effectively protected. The long-service life corrugated pipe for the vacuum arc extinguish chamber is mainly characterized in that the radius R of the wave peak of the corrugated pipe and the radius r of the wave trough of the corrugated pipe are designed to be of the same structural size and r is equal to R, therefore, the fatigue-resistance strength of the wave trough of a single wave can be improved, the elastic motion distance of the single wave of the corrugated pipe is increased, and the overall mechanical life of the novel corrugated pipe is prolonged.
Description
Technical field
The invention belongs to electron tube process structure design field, relate to the flexible member that a kind of vacuum interrupter is used---bellows, is that a kind of vacuum interrupter that is specially adapted to improves mechanical endurance, more reliable bellows.
Background technology
Not only depend on the performance of arc control device itself mechanical endurance of vacuum interrupter, but also closely related with the mechanical movement characteristic of the circuit breaker matched with it and switch, comprise out other performances of distance, on/off switch speed, circuit breaker itself etc.But the why more difficult raising mechanical endurance of arc control device is mainly that the life-span of bellows limits.Therefore, need a kind of novel, Longevity Vacuum Interrupter bellows, the mechanical endurance of raising vacuum interrupter.In R & D of complex of the present invention, by the dissection and analysis to the inefficacy bellows, find that the ripple that bellows destroys concentrates on two ends substantially, this is because bellows is subject to stretching and compression repeatedly under external force, be subject at first the effect of impulsive force at first and second ripple near port, bellows has elastic hysteresis in addition, thus destroy at first often near first and second wave-wave paddy place of corrugated tube port.Improve the mechanical endurance of bellows, need to the structure of bellows be redesigned through row.
Summary of the invention
Purpose of the present invention is exactly the problem and shortage part existed with traditional bellows for vacuum interrupter, and the structure of redesign bellows provides a kind of long-life bellows, conscientiously ensures the mechanical endurance of vacuum interrupter.
Technical solution of the present invention is: the long-life bellows of a kind of vacuum interrupter, its structure is to change the novel hyperbolicity serpentine that " U " shape of traditional bellows is standard, and increase r, the r at the R at crest place and trough place is designed to identical physical dimension.And the R at place, traditional ripple tube wave peak is 2 times of the trough place, i.e. R=2r.After improving, make the r at the trough place of New corrugated pipe strengthen, make r=R, be conducive to improve the fatigue resistance at single wave-wave paddy place.
The invention has the beneficial effects as follows: compare with the vacuum interrupter that adopts traditional bellows, adopt the vacuum interrupter of this long-life bellows can improve mechanical endurance approximately 30%.
The accompanying drawing explanation
Below, the present invention is further described by reference to the accompanying drawings.
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, R is the crest of bellows, and r is the trough of bellows, and R=r, and R and r form the hyperbolicity serpentine.When bellows is made stretching or compression movement, increased the elastic movement distance of bellows list ripple, and then promoted the mechanical endurance of novel bellows integral body.
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Claims (1)
1. a vacuum interrupter long-life bellows, to improve the vacuum interrupter flexible member of mechanical endurance, its structure is to change the novel hyperbolicity serpentine that " U " shape of traditional bellows is standard, its principal character is: the r at the R at bellows crest place and trough place is designed to identical physical dimension, make r=R, be conducive to improve the fatigue resistance at single wave-wave paddy place, increased the elastic movement distance of bellows list ripple, and then promoted the mechanical endurance of novel bellows integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104389781A CN103456556A (en) | 2013-09-25 | 2013-09-25 | Long-service life corrugated pipe for vacuum arc extinguish chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104389781A CN103456556A (en) | 2013-09-25 | 2013-09-25 | Long-service life corrugated pipe for vacuum arc extinguish chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103456556A true CN103456556A (en) | 2013-12-18 |
Family
ID=49738812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104389781A Pending CN103456556A (en) | 2013-09-25 | 2013-09-25 | Long-service life corrugated pipe for vacuum arc extinguish chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103456556A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551857A (en) * | 2016-01-15 | 2016-05-04 | 太原太航科技有限公司 | Design method for prolonging fatigue lives of corrugated pipes of arc extinguish chamber |
| CN111508767A (en) * | 2020-05-21 | 2020-08-07 | 广东电网有限责任公司电力科学研究院 | Vacuum arc extinguish chamber and pole-mounted vacuum switch |
-
2013
- 2013-09-25 CN CN2013104389781A patent/CN103456556A/en active Pending
Non-Patent Citations (3)
| Title |
|---|
| 中华人民共和国国家发展和改革委员会: "《JB/T 6169—2006 金属波纹管》", 31 December 2006 * |
| 王季梅: "《真空开关理论及其应用》", 30 November 1986 * |
| 许兆祥: "电真空器件用金属波纹管的疲劳寿命试验", 《真空电子技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551857A (en) * | 2016-01-15 | 2016-05-04 | 太原太航科技有限公司 | Design method for prolonging fatigue lives of corrugated pipes of arc extinguish chamber |
| CN111508767A (en) * | 2020-05-21 | 2020-08-07 | 广东电网有限责任公司电力科学研究院 | Vacuum arc extinguish chamber and pole-mounted vacuum switch |
| CN111508767B (en) * | 2020-05-21 | 2022-06-10 | 广东电网有限责任公司电力科学研究院 | Vacuum arc extinguish chamber and pole-mounted vacuum switch |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |