CN104269319A - Breaker with twisting-preventing vacuum arc-extinguishing chamber - Google Patents
Breaker with twisting-preventing vacuum arc-extinguishing chamber Download PDFInfo
- Publication number
- CN104269319A CN104269319A CN201410546420.XA CN201410546420A CN104269319A CN 104269319 A CN104269319 A CN 104269319A CN 201410546420 A CN201410546420 A CN 201410546420A CN 104269319 A CN104269319 A CN 104269319A
- Authority
- CN
- China
- Prior art keywords
- twisting
- turning round
- fairlead
- cover plate
- vacuum interrupter
- 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.)
- Granted
Links
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
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- 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
- H01H33/662—Housings or protective screens
- H01H33/66238—Specific bellows details
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- 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
- H01H33/6642—Contacts; Arc-extinguishing means, e.g. arcing rings having cup-shaped contacts, the cylindrical wall of which being provided with inclined slits to form a coil
-
- 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
- H01H33/662—Housings or protective screens
- H01H33/66238—Specific bellows details
- H01H2033/66253—Details relating to the prevention of unwanted rotation of the contact rod in vacuum switch bellows
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a breaker with a twisting-preventing vacuum arc-extinguishing chamber. The breaker comprises the twisting-preventing vacuum arc-extinguishing chamber. A guiding sleeve adopted in the twisting-preventing vacuum arc-extinguishing chamber is a twisting-preventing guiding sleeve. A movable conducting rod used in cooperation with the twisting-preventing guiding sleeve is arranged in the twisting-preventing guiding sleeve in a sleeved mode. A plurality of isosceles-trapezoid-shaped clamping grooves are evenly formed in the side, making contact with the movable conducting rod, of the twisting-preventing guiding sleeve in the axial direction. The short bottom edges of the isosceles-trapezoid-shaped clamping grooves are located on the inner wall of the twisting-preventing guiding sleeve, and the long bottom edges of the isosceles-trapezoid-shaped clamping grooves are located between the inner wall of the twisting-preventing guiding sleeve and the outer wall of the twisting-preventing guiding sleeve. A plurality of non-through clamping holes are evenly formed in the outer wall of the twisting-preventing guiding sleeve in the circumferential direction. The twisting-preventing guiding sleeve is connected with a movable end cover plate. A plurality of through holes used in cooperation with the clamping holes in a one-to-one mode are formed in the movable end cover plate. A fixed contact and a movable contact are of a cup-shaped longitudinal magnetic structure. A corrugated pipe is made of chromated nickel alloy materials, and the number of joints of the corrugated pipe is 25. The breaker is simple in structure, easy to achieve, long in service life and short in arc extinguishing time.
Description
Technical field
The present invention relates to a kind of electrical equipment, particularly relate to a kind of with the anti-circuit breaker turning round vacuum interrupter.
Background technology
Circuit breaker refer to the electric current that can close, carry and cut-off under normal loop condition and can close, the switching device of carrying and the electric current under cut-offfing abnormal loop condition in official hour.Vacuum interrupter is the important component part of circuit breaker, and the vacuum interrupter that current most of circuit breaker adopts does not have anti-twisting equipment, which results in following problem:
1, bellows is thinner, and bellows is connected with moving conductive rod, even breaks, thus had a strong impact on the life-span of vacuum interrupter once moving conductive rod generation twisting can directly cause bellows to twist.
2, moving conductive rod does translational motion along vertical with direction of motion plane and moving conductive rod axle center there occurs movement, and this will cause moving conductive rod discontinuity to cause bellows to deform even breaking.
3, fairlead is in use connected with moved end cover plate, and does not arrange anti-wrench device between moved end cover plate and fairlead.
4, cover plate wall in moved end is thinner, can not effectively prevent from twisting therebetween with being connected according to cutting ferrule between moving conductive rod, and cutting ferrule to connect difficulty of processing larger.
5, the useful life of bellows is short.
Above problem all can cause the of short duration of vacuum interrupter useful life, and the effect of vacuum interrupter in whole circuit breaker is even more important, and vacuum interrupter is once the interruption that goes wrong directly causing whole circuit breaker work.
The content of invention
In order to solve the problems of the technologies described above, the present invention proposes a kind of with the anti-circuit breaker turning round vacuum interrupter, effectively avoid the twisting of moving conductive rod and the movement in axle center, avoid bellows therefore to break, thus ensure that the useful life of vacuum interrupter, ensure that the useful life of whole circuit breaker.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of with the anti-circuit breaker turning round vacuum interrupter, comprise one to prevent turning round vacuum interrupter, describedly anti-turn round vacuum interrupter and comprise insulation crust, the upper and lower two ends of described insulation crust are respectively equipped with quiet end casing and moved end cover plate, and described insulation crust, quiet end casing and moved end cover plate form a confined space; The moving contact that described confined space comprises the fixed contact be connected with quiet end casing, the bellows be connected with moved end cover plate and is connected with bellows; It is characterized in that, be provided with between described bellows and moved end cover plate and prevent turning round fairlead, described anti-fairlead internal sleeve of turning round is equipped with and prevents that turning round fairlead mates the moving conductive rod used, describedly anti-turn round the draw-in groove that side that fairlead contacts with moving conductive rod is evenly provided with several isosceles trapezoid shape vertically, the base that the draw-in groove length of side of described isosceles trapezoid shape is shorter is positioned at the anti-inwall turning round fairlead, and the base that the draw-in groove length of side of described isosceles trapezoid shape is longer is turned round between fairlead inwall and outer wall anti-; The described anti-outer wall turning round fairlead is circumferentially evenly provided with the hole clipping of several not conductings, describedly anti-ly turns round fairlead and is connected with moved end cover plate, and described moved end cover plate is provided with several through holes mating use with described hole clipping one by one; Described fixed contact and moving contact are cup-shaped and indulge magnetic structure; Described bellows is chromium Nitinol material, and the joint number of described bellows is 25 joints.
The draw-in groove of described waist trapezoidal shape runs through whole fairlead vertically.
The draw-in groove number of described isosceles trapezoid shape is preferably 4.
The number of described hole clipping is preferably 4.
Angle between the base that the draw-in groove length of side of described isosceles trapezoid shape is longer and waist is 45 °-60 °.
Adopt vertical seal structure or flat seal structure during described bellows-welding, solder diameter is 0.4mm.
Beneficial effect of the present invention is:
1, effectively prevent in moving conductive rod motion process and twist;
2, moving conductive rod axle center is effectively prevented to be moved;
3, effectively prevent between fairlead and moved end cover plate and twist;
4, manufacture craft is simple, and install simple, cost is low.
5, bellows adopts the chromium Nitinol material that impact resistant capability is strong, and joint number adopts 25 joints, adds the useful life of bellows;
6, dynamic/static contact adopts cup-shaped to indulge magnetic structure, makes electric arc be distributed in contact surface uniformly, thus improves the arc extinction performance of vacuum interrupter.
Accompanying drawing explanation
Fig. 1 prevents the structural representation turning round vacuum interrupter;
Fig. 2 guide sleeve structure schematic diagram;
Fig. 3 moved end covering plate structure profile;
Fig. 4 moving conductive rod structure vertical view.
Wherein, 1, insulation crust; 2, quiet end casing; 3, moved end cover plate; 4, fixed contact; 5, moving contact; 6, prevent turning round fairlead; 7, moving conductive rod; 8, screwed pipe; 9, the draw-in groove of isosceles trapezoid shape; 10, the base that the draw-in groove of isosceles trapezoid shape is longer; 11, fairlead inwall; 12, fairlead outer wall; 13, hole clipping; 14, through hole.
Embodiment
Technical scheme for a better understanding of the present invention, is described further technical scheme of the present invention below in conjunction with accompanying drawing.
As Figure 1-4, a kind of with the anti-circuit breaker turning round vacuum interrupter, comprise one to prevent turning round vacuum interrupter, prevent that turning round vacuum interrupter comprises insulation crust 1, the upper and lower two ends of insulation crust are respectively equipped with quiet end casing 2 and moved end cover plate 3, and insulation crust, quiet end casing and moved end cover plate form a confined space; The moving contact 5 that confined space comprises the fixed contact 4 be connected with quiet end casing, the bellows 8 be connected with moved end cover plate and is connected with bellows; Be provided with between bellows and moved end cover plate and prevent turning round fairlead 6, anti-fairlead internal sleeve of turning round is equipped with and prevents that turning round fairlead mates the moving conductive rod 7 used, anti-turn round the draw-in groove 9 that side that fairlead 6 contacts with moving conductive rod 7 is evenly provided with several isosceles trapezoid shape vertically, the base that draw-in groove 9 length of side of isosceles trapezoid shape is shorter is positioned at the anti-inwall 11 turning round fairlead, and the base 10 that the draw-in groove length of side of isosceles trapezoid shape is longer is turned round between fairlead inwall 11 and outer wall 12 anti-; The anti-outer wall turning round fairlead 6 is circumferentially evenly provided with the hole clipping 13 of several not conductings, anti-ly turns round fairlead 6 and is connected with moved end cover plate 3, and moved end cover plate is provided with several through holes 14 mating use with described hole clipping one by one.
Fixed contact and moving contact are cup-shaped and indulge magnetic structure; Electric arc is made to be evenly distributed in contact surface.
Bellows is chromium Nitinol material, the joint number of bellows is 25 joints, the material of bellows and joint number and have close relationship its useful life, adopt the chromium Nitinol that impact resistance power is strong, the joint number of bellows be set to the useful life that 25 joints effectively can increase bellows simultaneously.
The draw-in groove of waist trapezoidal shape runs through whole fairlead vertically, ensure that the proper motion of moving conductive rod, effectively prevent the twisting of moving conductive rod and the movement in axle center simultaneously.
The draw-in groove number of isosceles trapezoid shape is preferably 4, ensures the uniform force of moving conductive rod.
The number of hole clipping is preferably 4, effectively secures anti-turning round between fairlead and moved end cover plate and occurs to twist phenomenon.
Angle between the base that the draw-in groove length of side of isosceles trapezoid shape is longer and waist is 45 °-60 °.Because practice shows that the torque forces suffered by moving conductive rod is obviously greater than the power caused on the moving direction of axle center, just have the angle of this scope can make the torque forces suffered by fairlead and cause the power of axle center movement to realize one to weigh preferably, final realization can prevent the twisting of moving conductive rod from the axle center of moving conductive rod can be prevented again to be moved.
The welding of bellows adopts vertical seal structure or flat seal structure, and in order to increase useful life and the matching performance of bellows, solder diameter adopts the solder of 0.4mm.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (6)
1. one kind with the anti-circuit breaker turning round vacuum interrupter, it is characterized in that, comprise one to prevent turning round vacuum interrupter, describedly anti-turn round vacuum interrupter and comprise insulation crust, the upper and lower two ends of described insulation crust are respectively equipped with quiet end casing and moved end cover plate, and described insulation crust, quiet end casing and moved end cover plate form a confined space; The moving contact that described confined space comprises the fixed contact be connected with quiet end casing, the bellows be connected with moved end cover plate and is connected with bellows; Be provided with between described bellows and moved end cover plate and prevent turning round fairlead, described anti-fairlead internal sleeve of turning round is equipped with and prevents that turning round fairlead mates the moving conductive rod used, describedly anti-turn round the draw-in groove that side that fairlead contacts with moving conductive rod is evenly provided with several isosceles trapezoid shape vertically, the base that the draw-in groove length of side of described isosceles trapezoid shape is shorter is positioned at the anti-inwall turning round fairlead, and the base that the draw-in groove length of side of described isosceles trapezoid shape is longer is turned round between fairlead inwall and outer wall anti-; The described anti-outer wall turning round fairlead is circumferentially evenly provided with the hole clipping of several not conductings, describedly anti-ly turns round fairlead and is connected with moved end cover plate, and described moved end cover plate is provided with several through holes mating use with described hole clipping one by one; Described fixed contact and moving contact are cup-shaped and indulge magnetic structure; Described bellows is chromium Nitinol material, and the joint number of described bellows is 25 joints.
2. a kind of with the anti-circuit breaker turning round vacuum interrupter as claimed in claim 1, it is characterized in that, the draw-in groove of described waist trapezoidal shape runs through whole fairlead vertically.
3. a kind of with the anti-circuit breaker turning round vacuum interrupter as claimed in claim 1, it is characterized in that, the draw-in groove number of described isosceles trapezoid shape is preferably 4.
4. a kind of with the anti-circuit breaker turning round vacuum interrupter as claimed in claim 1, it is characterized in that, the number of described hole clipping is preferably 4.
5. a kind of as described in as arbitrary in claim 1-4 is characterized in that with the anti-circuit breaker turning round vacuum interrupter, and the angle between the base that the draw-in groove length of side of described isosceles trapezoid shape is longer and waist is 45 °-60 °.
6. a kind ofly as claimed in claim 5 it is characterized in that with the anti-circuit breaker turning round vacuum interrupter, adopt vertical seal structure or flat seal structure during described bellows-welding, solder diameter is 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546420.XA CN104269319B (en) | 2014-10-15 | 2014-10-15 | A kind of chopper with anti-torsion vacuum interrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546420.XA CN104269319B (en) | 2014-10-15 | 2014-10-15 | A kind of chopper with anti-torsion vacuum interrupter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104269319A true CN104269319A (en) | 2015-01-07 |
| CN104269319B CN104269319B (en) | 2016-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410546420.XA Active CN104269319B (en) | 2014-10-15 | 2014-10-15 | A kind of chopper with anti-torsion vacuum interrupter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104269319B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111837304A (en) * | 2018-03-14 | 2020-10-27 | 三菱电机株式会社 | Gas insulated switchgear |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5597993A (en) * | 1992-11-10 | 1997-01-28 | Mitsubishi Denki Kabushiki Kaisha | Vacuum interrupter |
| CN200944371Y (en) * | 2006-07-07 | 2007-09-05 | 耐吉科技股份有限公司 | Double-lift vacuum extinction chamber |
| CN201478154U (en) * | 2009-08-17 | 2010-05-19 | 成都凯赛尔电子有限公司 | Novel torsion-resistant guide sleeve |
| CN203871262U (en) * | 2014-04-29 | 2014-10-08 | 昆山达功电子有限公司 | Vacuum switch pipe |
| CN204144149U (en) * | 2014-10-15 | 2015-02-04 | 山东恒瑞德电力设备有限公司 | A kind of with the anti-circuit breaker turning round vacuum interrupter |
-
2014
- 2014-10-15 CN CN201410546420.XA patent/CN104269319B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5597993A (en) * | 1992-11-10 | 1997-01-28 | Mitsubishi Denki Kabushiki Kaisha | Vacuum interrupter |
| CN200944371Y (en) * | 2006-07-07 | 2007-09-05 | 耐吉科技股份有限公司 | Double-lift vacuum extinction chamber |
| CN201478154U (en) * | 2009-08-17 | 2010-05-19 | 成都凯赛尔电子有限公司 | Novel torsion-resistant guide sleeve |
| CN203871262U (en) * | 2014-04-29 | 2014-10-08 | 昆山达功电子有限公司 | Vacuum switch pipe |
| CN204144149U (en) * | 2014-10-15 | 2015-02-04 | 山东恒瑞德电力设备有限公司 | A kind of with the anti-circuit breaker turning round vacuum interrupter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111837304A (en) * | 2018-03-14 | 2020-10-27 | 三菱电机株式会社 | Gas insulated switchgear |
| CN111837304B (en) * | 2018-03-14 | 2021-12-31 | 三菱电机株式会社 | Gas insulated switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104269319B (en) | 2016-12-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Jie Inventor after: Li Hongjian Inventor after: Luo Tianyu Inventor after: Li Yongling Inventor after: He Jinhui Inventor after: Li Lingjing Inventor after: Wang Shuai Inventor after: Xu Ling Inventor after: Shao Qixiang Inventor after: Xu Jianwei Inventor after: Ma Chao Inventor before: Zhao Hailing Inventor before: Li Tingzheng Inventor before: Liu Jian |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161114 Address after: 317000, Lucheng Road, Taizhou, Zhejiang, 250 Applicant after: STATE GRID ZHEJIANG LINHAI POWER SUPPLY CO., LTD. Applicant after: Zhejiang Yao Ming Power Equipment Co., Ltd. Applicant after: Taizhou Power Supply Company of State Grid Zhejiang Electric Power Company Applicant after: State Grid Corporation of China Address before: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 2000 Shun Tai Plaza Building 1 (B5) B1 zone 18 Applicant before: SHANDONG HENGRUIDE ELECTRIC POWER EQUIPMENT CO., LTD. |