CN105977094A - Bounce-free plug-in type vacuum arc-extinguishing chamber - Google Patents
Bounce-free plug-in type vacuum arc-extinguishing chamber Download PDFInfo
- Publication number
- CN105977094A CN105977094A CN201610553193.2A CN201610553193A CN105977094A CN 105977094 A CN105977094 A CN 105977094A CN 201610553193 A CN201610553193 A CN 201610553193A CN 105977094 A CN105977094 A CN 105977094A
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- China
- Prior art keywords
- contact
- moving contact
- moving
- vacuum arc
- static
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
- H01H2033/6648—Contacts containing flexible parts, e.g. to improve contact pressure
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention provides a bounce-free plug-in type vacuum arc-extinguishing chamber. The bounce-free plug-in type vacuum arc-extinguishing chamber comprises a static contact, the static contact is provided with a contact portion used for plugging conduction with the outer peripheral face of a moving contact, the static contact is internally provided with a buffer contact used for contact cooperation with the end surface of the moving contact through elastic components. The bounce-free plug-in type vacuum arc-extinguishing chamber has the following advantages: the static contact is internally provided with the buffer contact used for contact cooperation with the end surface of the moving contact through the elastic components, such that when the moving contact is in plugging fit with the static contact, the end surface of the moving contact is in contact with the buffer contact, when the moving contact moves, under the effect of the elastic components, the buffer contact moves along with the moving contact, the elastic components are compressed, in such a process, kinetic energy of the moving contact is absorbed by the buffer contact and the elastic components, bounce of the moving contact is eliminated through proper design of the buffer contact and the elastic components, and the problem of easy wear caused to the outer peripheral face of the moving contact in a bounce process is also solved.
Description
Technical field
The present invention relates to a kind of without spring inserted vacuum arc-chutes.
Background technology
Vacuum interrupter is the important component part of vacuum circuit breaker, vacuum interrupter of the prior art includes ceramic package, ceramic package is provided with the moving contact and static contact vertically arranged, the upper end of moving contact is connected with moving conductive rod, the lower end of static contact is connected with static conductive rod, and the contact Conducting forms of dynamic and static contact is the dock of end contact.Owing to being affected by factors such as the quality of the material of contact and hardness, closing speed and movable contact system, dynamic and static contact is at high speed contact collision rift, inevitably along with a series of hopping process i.e. closing rebound phenomenon, the amplitude beated is tens to hundreds of μm, persistent period is a few ms, and the kinetic energy of moving contact needs to be exhausted in spring several times until finally stably contacting with static contact.
The design structures shape of vacuum interrupter closing rebound is its one intrinsic phenomenon, when there is bounce, contact resistance between dynamic and static contact periodically increases, contact separate produced electric arc by causing serious contact to generate heat, Welding Phenomena, it is likely to cause Restriking overvoltage, has a strong impact on the combination property closing performance and switch cubicle of vacuum circuit breaker.
Authorization Notice No. is CN2332057Y, authorized announcement date is that the Chinese utility model patent of 1999.08.04 discloses a kind of inserted vacuum arc-chutes, multiple static contacts are stretched into vacuum interrupter by sidewall, ring-type static contact is formed in vacuum interrupter, the top of vacuum interrupter is equipped with static terminal, conductive plate it has been bolted above static terminal, equipped with conduction soft strength band in the middle of static terminal and conductive plate, the other end of conduction soft strength band is connected on the conducting rod of static contact, moving contact is stretched into by vacuum interrupter end, with ring-type static contact grafting.Owing to using inserting mode to make moving contact contact with static contact, therefore when closing a floodgate, even if moving contact produces spring, do not interfere with contacting between static contact, it is possible to remain the good contact between dynamic and static contact, it is ensured that good electric conductivity yet.
But, this inserted vacuum arc-chutes is in use, although moving contact generation closing rebound does not affect electric conductivity, but moving contact can produce abrasion to the outer peripheral face of moving contact during spring, in the course of time, use affecting the normal of moving contact and the combined floodgate performance of vacuum interrupter.
Summary of the invention
It is an object of the invention to provide a kind of without spring inserted vacuum arc-chutes, to solve the moving contact problem that outer peripheral face easily produces abrasion during spring in prior art.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that
A kind of without spring inserted vacuum arc-chutes, including static contact, static contact is provided with the contact site for conducting electricity with the outer peripheral face grafting of moving contact, in static contact, elastic component is provided with the buffering contact for coordinating with the end contact of moving contact.
Described elastic component, when not pressed by moving contact, buffers the end face of contact and contact site.
Described buffering contact is the conductor that can conduct electricity.
Described contact site is elastic electric conductor.
Described elastic electric conductor length on moving contact moving direction is equal to the height sum of moving contact with buffering contact.
Described elastic component is spring, also includes the spring conductor rod being arranged in static contact without spring inserted vacuum arc-chutes.
The beneficial effects of the present invention is: in static contact, elastic component is provided with the buffering contact for coordinating with the end contact of moving contact, so when moving contact coordinates with static contact grafting, the end face of moving contact and buffering contact, when moving contact moves, under the effect of elastic component, buffering contact moves with moving contact, elastic component is compressed, in this process, the kinetic energy of moving contact is buffered contact and elastic component sponges, such that it is able to by suitably buffering contact and the design of elastic component, eliminate the spring of moving contact, thus the most just solve the moving contact problem that outer peripheral face easily produces abrasion during spring.
Accompanying drawing explanation
Fig. 1 is the structural representation in the present invention without spring inserted vacuum arc-chutes.
In figure: 1. go up conducting rod；2. corrugated tube；3. ceramic package；4. moving contact；5. watchband-shaped contactor；6. descend conducting rod；7. static contact；8. spring；9. the second contact plane；10. the first contact plane；11. buffering contacts.
Detailed description of the invention
The embodiment of nothing spring inserted vacuum arc-chutes is as shown in Figure 1, including ceramic package 3, ceramic package 3 is provided with the moving contact 4 and static contact component vertically arranged, the upper end of moving contact 4 is linked in sequence corrugated tube 2 and for the upper conducting rod 1 being connected with operating mechanism, is additionally provided with radome (not shown) in ceramic package 3.
Static contact component includes that static contact 7, static contact 7 are provided with the contact site for conducting electricity with the outer peripheral face grafting of moving contact 4, and in this embodiment, contact site is elastic electric conductor, specially watchband-shaped contactor 5.For being provided with, by elastic component, the buffering contact 11 that the end contact with moving contact 4 coordinates in the inserting groove of moving contact 4 grafting conduction on static contact 7, in this embodiment, buffering contact 11 is the conductor that can conduct electricity, therefore moving contact 4 not only can be buffered by buffering contact 11, can also conduct electricity, such that it is able to improve the conduction through-current capability of vacuum interrupter.Elastic component is spring 8, and spring 8 is set in the outside of lower conducting rod 6, and lower conducting rod 6 is the spring conductor rod of spring 8, after moving contact 4 contacts with buffering contact 11, buffering contact 11 moves down with moving contact 4, and spring 8 is compressed, and lower conducting rod 6 moves downwardly together with buffering contact 11.
When spring 8 is not contacted and moves downward with buffering contact 11 by moving contact 4 pressure i.e. moving contact 4, buffering contact 11 flushes with the end face of watchband-shaped contactor 5, so after moving contact 4 contacts with buffering contact 11, as long as moving contact 4 continues to move a bit still further below, the end face that can realize moving contact 4 contacts electric action while conduction and the outer peripheral face of moving contact 4 and static contact 7 grafting conduction with buffering contact 11, carries big rated current so that vacuum interrupter possesses and cut-offs the ability of big short circuit current.And when the end face buffering contact 11 is higher or lower than the end face of watchband-shaped contactor 5, in the motor process of moving contact 4, some time total, simply disclosure satisfy that the one of which in above-mentioned electric action, thus do not have contact from the beginning and just can meet the effect simultaneously conducted electricity.The watchband-shaped contactor 5 length on moving contact 4 moving direction, equal to the height sum of moving contact 4 with buffering contact 11, so arranges and can meet use needs, thus save the specification of watchband-shaped contactor 5, reduce cost.
Operation principle without spring inserted vacuum arc-chutes is: during combined floodgate, upper conducting rod 1 drives moving contact 4 to move downward under the effect of operating mechanism, when moving contact 4 moves to the first contact plane 10 with the end contact of buffering contact 11, now electric current can flow to static contact 7 by buffering contact 11, watchband-shaped contactor 5.Along with moving contact 4 continues to move downward, buffering contact 11, lower conducting rod 6 move downwardly together with moving contact 4, spring 8 is compressed, in the process, the outer peripheral face of moving contact 4 contacts with watchband-shaped contactor 5, realize the grafting conduction of moving contact 4 and static contact 7, i.e. electric current flows to static contact 7 by the outer peripheral face of moving contact 4, watchband-shaped contactor 5.When moving contact 4 moves to the second contact plane 9, moving contact 4 is completely inserted in the inserting groove of static contact 7, and combined floodgate terminates, and now the conduction through-current capability of vacuum interrupter is maximum.
During separating brake, moving contact 4 and upper conducting rod 1 move upward under the effect of operating mechanism, buffering contact 11, lower conducting rod 6 also synchronize to move upward under the effect of spring 8, when moving contact 4 moves to the first contact plane 10, moving contact 4 will disconnect with buffering contact 11 and contacting, now the energy of spring 8 is zero, buffers contact 11 stop motion.Hereafter, moving contact 4 and upper conducting rod 1 continue up under the effect of operating mechanism, complete separating brake process.In order to improve the break performance of vacuum interrupter, strengthen the magnetic field control action to electric arc, static contact 7 is additionally provided with vertical magnetic or horizontal magnetic or magnetic structure (not shown) in length and breadth.
In other embodiments without spring inserted vacuum arc-chutes: vertical magnetic or horizontal magnetic or magnetic structure in length and breadth can also be not provided with on static contact；The spring conductor rod of spring can not be lower conducting rod, lower conducting rod can be that a part of body of rod of static contact of being fixedly linked with static contact, protrude from, that a part of body of rod that the spring conductor rod of spring is only provided in the inserting groove of static contact, it is arranged with sliding sleeve on the top of spring conductor rod, sliding sleeve with buffering contact join be incorporated in buffering contact effect under move downward compression spring, in this process, spring conductor rod and lower conducting rod are all fixed；Elastic component can also be rubber；Elastic electric conductor can also be spring touch finger；Elastic electric conductor length on moving contact moving direction is also greater than the height sum of moving contact and buffering contact；Contact site can also be not have resilient electric conductor；Buffering contact can also be non-conductive, only plays cushioning effect；Elastic component is not when being pressed by moving contact, and the end face of buffering contact may be lower than or be higher than the end face of contact site.
Claims (6)
1. a nothing spring inserted vacuum arc-chutes, including static contact, static contact is provided with the contact site for conducting electricity with the outer peripheral face grafting of moving contact, it is characterised in that: in static contact, elastic component is provided with the buffering contact for coordinating with the end contact of moving contact.
It is the most according to claim 1 without spring inserted vacuum arc-chutes, it is characterised in that: described elastic component, when not pressed by moving contact, buffers the end face of contact and contact site.
It is the most according to claim 1 and 2 without spring inserted vacuum arc-chutes, it is characterised in that: described buffering contact is the conductor that can conduct electricity.
It is the most according to claim 1 and 2 without spring inserted vacuum arc-chutes, it is characterised in that: described contact site is elastic electric conductor.
It is the most according to claim 4 without spring inserted vacuum arc-chutes, it is characterised in that: described elastic electric conductor length on moving contact moving direction is equal to the height sum of moving contact with buffering contact.
It is the most according to claim 5 without spring inserted vacuum arc-chutes, it is characterised in that: described elastic component is spring, also includes the spring conductor rod being arranged in static contact without spring inserted vacuum arc-chutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610553193.2A CN105977094B (en) | 2016-07-14 | 2016-07-14 | It is a kind of without spring inserted vacuum arc-chutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610553193.2A CN105977094B (en) | 2016-07-14 | 2016-07-14 | It is a kind of without spring inserted vacuum arc-chutes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105977094A true CN105977094A (en) | 2016-09-28 |
| CN105977094B CN105977094B (en) | 2018-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610553193.2A Expired - Fee Related CN105977094B (en) | 2016-07-14 | 2016-07-14 | It is a kind of without spring inserted vacuum arc-chutes |
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| CN (1) | CN105977094B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331571A (en) * | 2017-07-20 | 2017-11-07 | 中国电力科学研究院 | A kind of vacuum arc-extinguishing chamber contact and its control method for switched capacitor group |
| CN107887184A (en) * | 2017-11-23 | 2018-04-06 | 许继（厦门）智能电力设备股份有限公司 | Earthed switch contact |
| CN108242357A (en) * | 2018-03-15 | 2018-07-03 | 南方电网科学研究院有限责任公司 | A kind of vacuum interrupter and dc circuit breaker of the quiet side buffering of band |
| CN108511262A (en) * | 2018-05-21 | 2018-09-07 | 中国振华电子集团宇光电工有限公司（国营第七七厂） | A kind of vacuum arc-extinguishing chamber contact system structure |
| CN108878187A (en) * | 2017-05-08 | 2018-11-23 | 西门子公司 | For the contact apparatus of electric system, disconnecting switch, barrier assembly and gas-insulated switchgear |
| CN109192601A (en) * | 2018-09-29 | 2019-01-11 | 杭州佰盟智能开关有限公司 | A kind of breaker closing spring secondary buffer device |
| 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 |
| CN111863507A (en) * | 2020-06-18 | 2020-10-30 | 平高集团有限公司 | Contact and fracture structure for high-speed mechanical switch |
| CN112436397A (en) * | 2020-11-26 | 2021-03-02 | 安徽东方旭电气设备有限公司 | Intelligent circuit breaker |
| CN112735900A (en) * | 2020-11-27 | 2021-04-30 | 平高集团有限公司 | Vacuum arc-extinguishing chamber and vacuum circuit breaker using same |
| CN113643932A (en) * | 2021-10-14 | 2021-11-12 | 常州平川飞耀电气有限公司 | Driving mechanism for high-voltage switch |
| CN113782397A (en) * | 2021-11-11 | 2021-12-10 | 常州平川飞耀电气有限公司 | Control device of high-voltage switch |
| CN115172093A (en) * | 2022-09-08 | 2022-10-11 | 宁波天安智能电网科技股份有限公司 | Electromagnetic ejection quick switch device |
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| DE2731349A1 (en) * | 1977-07-12 | 1979-01-25 | Bbc Brown Boveri & Cie | Vacuum switch, esp. for low and medium voltage - has magnet outside housing, and movable armature inside it operating movable contact |
| CN102354632A (en) * | 2011-10-20 | 2012-02-15 | 北京华东森源电气有限责任公司 | Vacuum interrupter and vacuum circuit breaker using same |
| CN202307661U (en) * | 2011-11-11 | 2012-07-04 | 北京北开电气股份有限公司 | Disconnection port arc-striking structure for high-voltage isolating switch |
| CN203588921U (en) * | 2013-11-28 | 2014-05-07 | 景德镇万鹏电子有限公司 | Rapid less-bounce vacuum arc-extinguishing chamber |
| CN204375641U (en) * | 2015-02-05 | 2015-06-03 | 浙江安光电气科技有限公司 | Vacuum interrupter |
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2016
- 2016-07-14 CN CN201610553193.2A patent/CN105977094B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2731349A1 (en) * | 1977-07-12 | 1979-01-25 | Bbc Brown Boveri & Cie | Vacuum switch, esp. for low and medium voltage - has magnet outside housing, and movable armature inside it operating movable contact |
| CN102354632A (en) * | 2011-10-20 | 2012-02-15 | 北京华东森源电气有限责任公司 | Vacuum interrupter and vacuum circuit breaker using same |
| CN202307661U (en) * | 2011-11-11 | 2012-07-04 | 北京北开电气股份有限公司 | Disconnection port arc-striking structure for high-voltage isolating switch |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878187A (en) * | 2017-05-08 | 2018-11-23 | 西门子公司 | For the contact apparatus of electric system, disconnecting switch, barrier assembly and gas-insulated switchgear |
| CN108878187B (en) * | 2017-05-08 | 2020-10-16 | 西门子公司 | Contact device, isolating switch, isolating assembly and gas insulated switchgear for power system |
| CN107331571B (en) * | 2017-07-20 | 2021-04-30 | 中国电力科学研究院 | Vacuum arc-extinguishing chamber contact for switching capacitor bank and control method thereof |
| CN107331571A (en) * | 2017-07-20 | 2017-11-07 | 中国电力科学研究院 | A kind of vacuum arc-extinguishing chamber contact and its control method for switched capacitor group |
| CN107887184A (en) * | 2017-11-23 | 2018-04-06 | 许继（厦门）智能电力设备股份有限公司 | Earthed switch contact |
| CN108242357A (en) * | 2018-03-15 | 2018-07-03 | 南方电网科学研究院有限责任公司 | A kind of vacuum interrupter and dc circuit breaker of the quiet side buffering of band |
| CN108511262A (en) * | 2018-05-21 | 2018-09-07 | 中国振华电子集团宇光电工有限公司（国营第七七厂） | A kind of vacuum arc-extinguishing chamber contact system structure |
| CN109192601A (en) * | 2018-09-29 | 2019-01-11 | 杭州佰盟智能开关有限公司 | A kind of breaker closing spring secondary buffer device |
| 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 |
| CN111863507A (en) * | 2020-06-18 | 2020-10-30 | 平高集团有限公司 | Contact and fracture structure for high-speed mechanical switch |
| CN112436397A (en) * | 2020-11-26 | 2021-03-02 | 安徽东方旭电气设备有限公司 | Intelligent circuit breaker |
| CN112436397B (en) * | 2020-11-26 | 2022-06-28 | 安徽东方旭电气设备有限公司 | Intelligent circuit breaker |
| CN112735900A (en) * | 2020-11-27 | 2021-04-30 | 平高集团有限公司 | Vacuum arc-extinguishing chamber and vacuum circuit breaker using same |
| CN112735900B (en) * | 2020-11-27 | 2023-02-17 | 平高集团有限公司 | Vacuum arc-extinguishing chamber and vacuum circuit breaker using same |
| CN113643932A (en) * | 2021-10-14 | 2021-11-12 | 常州平川飞耀电气有限公司 | Driving mechanism for high-voltage switch |
| CN113782397A (en) * | 2021-11-11 | 2021-12-10 | 常州平川飞耀电气有限公司 | Control device of high-voltage switch |
| CN115172093A (en) * | 2022-09-08 | 2022-10-11 | 宁波天安智能电网科技股份有限公司 | Electromagnetic ejection quick switch device |
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| CN105977094B (en) | 2018-11-09 |
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