CN105977094B - It is a kind of without spring inserted vacuum arc-chutes - Google Patents
It is a kind of without spring inserted vacuum arc-chutes Download PDFInfo
- Publication number
- CN105977094B CN105977094B CN201610553193.2A CN201610553193A CN105977094B CN 105977094 B CN105977094 B CN 105977094B CN 201610553193 A CN201610553193 A CN 201610553193A CN 105977094 B CN105977094 B CN 105977094B
- Authority
- CN
- China
- Prior art keywords
- contact
- buffering
- spring
- moving contact
- 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
- 230000003068 static effect Effects 0.000 claims abstract description 49
- 230000003139 buffering effect Effects 0.000 claims abstract description 42
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims description 16
- 239000000872 buffer Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000013011 mating Effects 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004886 head movement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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 present invention provides a kind of without spring inserted vacuum arc-chutes, including static contact, and static contact is equipped with the contact site for the peripheral surface grafting conduction with moving contact, and static contact is interior to be provided with the buffering contact being engaged for the end face with moving contact by elastic component.The beneficial effects of the present invention are：The buffering contact being engaged for the end face with moving contact is provided with by elastic component in static contact, in this way when moving contact and static contact are mating, the end face of moving contact and buffering contact, when moving contact moves, under the action of the elastic member, buffering contact is moved with moving contact, elastic component is compressed, in this process, the kinetic energy of moving contact is sponged by buffering contact and elastic component, so as to pass through the design for suitably buffering contact and elastic component, eliminate the spring of moving contact, to also just solve the problems, such as that moving contact peripheral surface during spring easy tos produce abrasion.
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 of vacuum circuit breaker, and vacuum interrupter in the prior art includes that ceramics are outer
Shell is provided with the moving contact and static contact vertically arranged in ceramic shell, and the upper end of moving contact is connected with moving conductive rod, stationary contact
The lower end of head is connected with static conductive rod, and the contact Conducting forms of dynamic and static contact are the dock of end face contact.Due to by contact
The influence of the factors such as material and hardness, the quality of closing speed and movable contact system, dynamic and static contact are collided in high speed contact
Afterwards, inevitably along with a series of hopping process, that is, closing rebound phenomenon, the amplitude of bounce is tens to hundreds of μm,
Duration is several ms, and the kinetic energy needs of moving contact are exhausted in spring several times until finally being connect with static contact stabilization
It touches.
The design structure of vacuum interrupter determines that closing rebound is a kind of its intrinsic phenomenon, when generation bounce
When, the contact resistance between dynamic and static contact periodically increases, and electric arc will cause serious contact to be sent out caused by contact separation
Heat, Welding Phenomena, it is also possible to lead to Restriking overvoltage, seriously affect vacuum circuit breaker closes the comprehensive of performance and switchgear
Energy.
Authorization Notice No. is CN2332057Y, and 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 stretch into vacuum interrupter by side wall, are formed in vacuum interrupter cyclic annular quiet
The top of contact, vacuum interrupter is equipped with static terminal, and conductive plate, static terminal and conductive plate have been bolted above static terminal
Centre is connected to equipped with conductive soft strength band, the other end of conductive soft strength band on the conducting rod of static contact, and moving contact is by vacuum
Arc-chutes end is stretched into, with cyclic annular static contact grafting.Due to making moving contact be contacted with static contact using inserting mode, closing
When lock, though moving contact generate spring, the contact between static contact will not be influenced, can remain dynamic and static contact it
Between good contact, ensure good electric conductivity.
However, this inserted vacuum arc-chutes are when in use, although moving contact occurs closing rebound and do not influence electric conductivity
Can, but moving contact can generate abrasion during spring to the peripheral surface of moving contact, in the course of time, will influence moving contact just
It is often used and the combined floodgate performance of vacuum interrupter.
Invention content
The purpose of the present invention is to provide a kind of without spring inserted vacuum arc-chutes, to solve moving contact in the prior art
The problem of peripheral surface easy tos produce abrasion during spring.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
It is a kind of without spring inserted vacuum arc-chutes, including static contact, static contact is equipped with for the periphery with moving contact
The contact site of face grafting conduction is provided with the buffering being engaged for the end face with moving contact by elastic component in static contact and touches
Head.
The elastic component buffers the end face of contact and contact site when not pressed by moving contact.
The buffering contact is conductor that can be conductive.
The contact site is elastic electric conductor.
Length of the elastic electric conductor on moving contact moving direction is equal to moving contact and buffers the sum of the height of contact.
The elastic component is spring, and no spring inserted vacuum arc-chutes further include that the spring being set in static contact is oriented to
Bar.
The beneficial effects of the present invention are：It is provided with to contact for the end face with moving contact by elastic component in static contact and match
The buffering contact of conjunction, in this way when moving contact and static contact are mating, end face and the buffering contact of moving contact are touched when dynamic
When head movement, under the action of the elastic member, buffering contact is moved with moving contact, and elastic component is compressed, in this process,
The kinetic energy of moving contact is sponged by buffering contact and elastic component, so as to by suitably buffering setting for contact and elastic component
Meter, eliminates the spring of moving contact, to also just solve the problems, such as that moving contact peripheral surface during spring easy tos produce abrasion.
Description of the drawings
Fig. 1 is the structural schematic diagram without spring inserted vacuum arc-chutes in the present invention.
In figure：Conducting rod on 1.；2. bellows；3. ceramic shell；4. moving contact；5. watchband-shaped contactor；6. lower conducting rod；7.
Static contact；8. spring；9. the second contact plane；10. the first contact plane；11. buffering contact.
Specific implementation mode
Embodiment without spring inserted vacuum arc-chutes is equipped with as shown in Figure 1, including ceramic shell 3 in ceramic shell 3
The moving contact 4 and static contact component vertically arranged, the upper end of moving contact 4, which is linked in sequence, bellows 2 and to be used for and actuating
Mechanism connected upper conducting rod 1 is additionally provided with shielding case in ceramic shell 3（It is not shown in figure）.
Static contact component includes static contact 7, and static contact 7 is equipped with connecing for the peripheral surface grafting conduction with moving contact 4
Contact portion, in this embodiment, contact site are elastic electric conductor, specially watchband-shaped contactor 5.For being inserted with moving contact 4 on static contact 7
It connects in conductive inserting groove and is provided with the buffering contact 11 being engaged with the end face of moving contact 4 by elastic component, in the implementation
In example, buffering contact 11 is conductor that can be conductive, therefore buffers contact 11 and not only can may be used also to moving contact 4 into row buffering
To carry out conduction, so as to improve the conductive through-current capability of vacuum interrupter.Elastic component is spring 8, and spring 8, which is set in down, leads
The outside of electric pole 6, lower conducting rod 6 are the spring conductor rod of spring 8, and after moving contact 4 is contacted with buffering contact 11, buffering is touched
First 11 move 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 that moving contact 4 is not contacted and moved downward with buffering contact 11 by the pressure of moving contact 4, buffering is touched
First 11 flush with the end face of watchband-shaped contactor 5, in this way after moving contact 4 is contacted with buffering contact 11, as long as moving contact 4 continues
Move still further below a bit, you can realize the end face of moving contact 4 contacted with buffering contact 11 conductive and moving contact 4 peripheral surface and
Electric action while 7 grafting conduction of static contact, to make vacuum interrupter have the big rated current of carrying and cut-off big short circuit
The ability of electric current.And when the end face for buffering contact 11 is higher or lower than the end face of watchband-shaped contactor 5, in the movement of moving contact 4
In the process, some total time, the one of which in above-mentioned electric action is only disclosure satisfy that, to not have from the beginning
Contact can meet while conductive effect.Length of the watchband-shaped contactor 5 on 4 moving direction of moving contact be equal to moving contact 4 with
Buffer the sum of the height of contact 11, setting in this way can meet using needs, to save the specification of watchband-shaped contactor 5, reduction at
This.
Without spring inserted vacuum arc-chutes operation principle be：When combined floodgate, upper conducting rod 1 is under the action of operating mechanism
It drives moving contact 4 to move downward, is contacted with the end face of buffering contact 11 when moving contact 4 moves to the first contact plane 10, this
When electric current can flow to static contact 7 by buffering contact 11, watchband-shaped contactor 5.As moving contact 4 continues to move downward, buffering is touched
First 11, lower conducting rod 6 moves downwardly together with moving contact 4, and spring 8 is compressed, in the process, the peripheral surface of moving contact 4 with
Watchband-shaped contactor 5 contacts, and realizes that moving contact 4 and the grafting of static contact 7 are conductive, i.e. peripheral surface, watch band contact of the electric current by moving contact 4
Refer to 5 and flows to static contact 7.When moving contact 4 moves to the second contact plane 9, moving contact 4 is completely inserted into the grafting of static contact 7
In slot, combined floodgate terminates, and the conductive through-current capability of vacuum interrupter is maximum at this time.
When separating brake, moving contact 4 and upper conducting rod 1 move upwards under the action of operating mechanism, buffering contact 11, lower conduction
Bar 6 is also synchronized under the action of spring 8 and is moved upwards, and when moving contact 4 moves to the first contact plane 10, moving contact 4 will
It is contacted with the buffering disconnection of contact 11, the energy of spring 8 is zero at this time, buffers 11 stop motion of contact.Hereafter, moving contact 4 and upper
Conducting rod 1 continues up under the action of operating mechanism, completes separating brake process.In order to improve the cut-offfing property of vacuum interrupter
Can, enhancing magnetic field is additionally provided with vertical magnetic either horizontal magnetic or magnetic structure in length and breadth to the control action of electric arc on static contact 7（Figure
In be not shown）.
In the other embodiment without spring inserted vacuum arc-chutes：Vertical magnetic or cross can not also be set on static contact
Magnetic or in length and breadth magnetic structure；The spring conductor rod of spring can not be lower conducting rod, and lower conducting rod can be solid with static contact
Be connected, protrude from that a part of body of rod of static contact calmly, and the spring conductor rod of spring is only provided in the inserting groove of static contact
That a part of body of rod, be arranged with sliding sleeve on the top of spring conductor rod, sliding sleeve is tactile in buffering with merging with buffering contact
Compressed spring is moved downward under the action of head, in this process, spring conductor rod and lower conducting rod are fixed；Bullet
Property part can also be rubber；Elastic electric conductor can also be spring touch finger；Length of the elastic electric conductor on moving contact moving direction
Degree is also greater than moving contact and buffers the sum of the height of contact；Contact site can also be the electric conductor without elasticity；Buffering is touched
Head can not also be conductive, only works as a buffer；Elastic component when not pressed by moving contact, the end face for buffering contact may be lower than or
Person is higher than the end face of contact site.
Claims (3)
1. a kind of without spring inserted vacuum arc-chutes, including static contact, static contact is equipped with for the peripheral surface with moving contact
The contact site of grafting conduction, it is characterised in that：It is provided with to contact for the end face with moving contact by elastic component in static contact and match
The buffering contact of conjunction, the elastic component when not pressed by moving contact, touch by buffering contact end face and static contact end face, buffering
The end face of head and contact site, the buffering contact are conductor that can be conductive, and elastic component is spring, and no spring plug-in type is true
Empty arc-chutes further include lower conducting rod, and spring is set in the outside of lower conducting rod, and lower conducting rod is the spring conductor rod of spring,
Lower conducting rod is connected to the lower section of buffering contact, lower conducting rod passes through static contact and the part of it body of rod to be located inside static contact,
Another part body of rod is located at outside static contact, and after moving contact and buffering contact, buffering contact is moved down with moving contact,
Spring is compressed, and lower conducting rod moves downwardly together with buffering contact.
2. according to claim 1 without spring inserted vacuum arc-chutes, it is characterised in that：The contact site is elastic conducting
Electric body.
3. according to claim 2 without spring inserted vacuum arc-chutes, it is characterised in that：The elastic electric conductor is dynamic
Length on contact moving direction is equal to moving contact and buffers the sum of the height of contact.
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 CN105977094A (en) | 2016-09-28 |
| CN105977094B true CN105977094B (en) | 2018-11-09 |
Family
ID=56951714
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105977094B (en) |
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| 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 |
| 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 |
| 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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| CN112436397B (en) * | 2020-11-26 | 2022-06-28 | 安徽东方旭电气设备有限公司 | Intelligent circuit breaker |
| 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 |
| CN113643932B (en) * | 2021-10-14 | 2021-12-07 | 常州平川飞耀电气有限公司 | Driving mechanism for high-voltage switch |
| CN113782397B (en) * | 2021-11-11 | 2022-02-15 | 常州平川飞耀电气有限公司 | Control device of high-voltage switch |
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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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-07-14 CN CN201610553193.2A patent/CN105977094B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105977094A (en) | 2016-09-28 |
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