CN102024614B - Breaker switch - Google Patents
Breaker switch Download PDFInfo
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- CN102024614B CN102024614B CN 201010572053 CN201010572053A CN102024614B CN 102024614 B CN102024614 B CN 102024614B CN 201010572053 CN201010572053 CN 201010572053 CN 201010572053 A CN201010572053 A CN 201010572053A CN 102024614 B CN102024614 B CN 102024614B
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- rotating shaft
- cam
- vacuum interrupter
- pivot pin
- insulation crust
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Abstract
The invention discloses a breaker switch, comprising a U-shaped insulation case, a hexangular rotating shaft, a V-shaped support which is fixed on an insulation support and used for supporting the rotating shaft, a vacuum arc extinguish chamber and a conducting mechanism which is used for causing the vacuum arc extinguish chamber to be conductive, wherein the V-shaped support is provided with a round hole, the rotating shaft penetrates through the round hole to be in clearance fit with the V-shaped support, the conducting mechanism comprises a cam, a shaft pin arranged in a kidney slot of the cam, a movable rod and a return spring, the cam is provided with a hexangular hole corresponding to the rotating shaft, the rotating shaft penetrates through the hexangular hole and fixes the cam onto the rotating shaft, the V-shaped support is inversely inserted into the insulation case, the lower end of the V-shaped support is provided with a U-shaped slot, the shaft pin is arranged in the U-shaped slot, the movable rod is arranged below the shaft pin, the movable rod comprises an end cover at the upper part and a straight rod at the lower part, the return spring is arranged below the end cover, and the lower end of the straight rod is arranged in the vacuum arc extinguish chamber. The breaker switch has the advantage of stronger turn-off capability.
Description
Technical field
The present invention relates to a kind of assembly of high voltage electric switch, particularly a kind of killer switch.
Background technology
Killer switch is the significant components in the high-voltage switch gear; Be provided with vacuum interrupter in the killer switch; Vacuum interrupter is to utilize high vacuum operational insulation arc-extinguishing medium, realizes a kind of electron tube of the on-off function of power circuit by sealing a pair of contact in a vacuum.When it broke off the electric current of certain numerical value, dynamic/static contact was in the moment of separating, and electric current is retracted on any of contact separation just; Violent increase of resistance between electrode and temperature occur and improve rapidly,, form high electric field strength simultaneously until the generating electrodes evaporation of metals; Cause extremely strong strong emission and gap breakdown, produce vacuum arc, when power current near zero the time; The plasma of vacuum arc is very soon to diffusion all around; After the arc current zero passage, the medium in contact gap becomes insulator by electric conductor rapidly, so electric current is by disjunction.In breaking course, the opening speed of circuit breaker can produce bigger influence to electric arc, and opening speed is fast more, and the electric arc of generation is more little, and the disjunction of circuit breaker is just safe more.
Summary of the invention
The objective of the invention is to problem, a kind of killer switch is provided to the existence of the killer switch described in the background technology.
Realize that technical scheme of the present invention is following:
A kind of killer switch, it comprises the insulation crust of U type, the rotating shaft of hexagonal, the conducting mechanism of being fixed in the V-type support, the vacuum interrupter that are used for supporting revolving shaft on the insulating support and being used to make the vacuum interrupter conducting, the V-type support is provided with circular hole; This circular hole and V-type support matched in clearance are passed in rotating shaft, and described conducting mechanism comprises cam, be arranged at pivot pin, motion bar and back-moving spring in the kidney slot of cam, and described cam is provided with the hexagon ring corresponding with rotating shaft; Rotating shaft is passed this hexagon ring cam is fixed in the rotating shaft; The V-type support is upside down in the insulation crust, and its lower end is provided with U type groove, and pivot pin is arranged in this U type groove; Motion bar is arranged at the below of pivot pin; It comprises the end cap on top and the straight-bar of bottom, and back-moving spring is arranged at the below of end cap, and the straight-bar lower end is arranged in the vacuum interrupter.
Be provided with the limiting plate that is used for fixing vacuum interrupter in the described insulation crust.
The lower end of described vacuum interrupter is fixed on vacuum interrupter on the insulation crust through copper nut.
The lower end of described vacuum interrupter connects upper contact head.
It is because the rotating shaft of hexagonal is adopted in the rotating shaft of circuit breaker of the present invention that beneficial effect is starved in the new action of this practicality, with V-type support matched in clearance, cooperates through the hexagon ring on the cam with cam; Therefore the V-type support can not be affected when rotating shaft is rotated, and cam then deflects along with the rotation of rotating shaft, and cam is provided with waist-shaped hole; Pivot pin is arranged in this waist-shaped hole, when cam rotation, drives pivot pin and moves up and down; Only move up and down in order to ensure pivot pin, below the V-type support, be provided with U type groove, pivot pin is arranged in this U type groove; Like this, can prevent to squint about pivot pin from taking place, influence the switching manipulation of killer switch.When pivot pin moves down, can press motion bar to move down, when moving to extreme lower position, the contact conducting that vacuum extinction is indoor; Move down in the process at motion bar, the end cap on motion bar top moves down, and makes the back-moving spring compression; When wanting the cut-off breaker switch, rotating shaft is reversed, then cam upwards changes; Pivot pin rises under the elastic force of back-moving spring, or innervation moves up, and the contact of vacuum extinction chamber interior is broken off connect.Need bigger power to make the closing of contact when killer switch of the present invention is closed, make the back-moving spring compression simultaneously, therefore relatively slowly; When breaking off, then under the effect of back-moving spring, can break off rapidly; Because vacuum interrupter can produce electric arc, the quick separation of contact when breaking off; Help accelerating extinguishing of electric arc, avoid the generation of contingency.
Description of drawings
Fig. 1 is a sketch map of the present invention;
Among the figure, 1 is insulation crust, and 2 are rotating shaft, and 3 is the V-type support, and 4 is vacuum interrupter, and 5 is cam, and 6 is kidney slot, and 7 is pivot pin, and 8 is motion bar, and 9 is back-moving spring, and 10 is U type groove, and 11 is limiting plate, and 12 is copper nut, and 13 is upper contact head.
Embodiment
With reference to a kind of killer switch shown in Figure 1; It comprises the insulation crust 1 of U type, the rotating shaft 2 of hexagonal, the conducting mechanism of being fixed in the V-type support 3 that is used for supporting revolving shaft 2, the vacuum interrupter 4 on the insulating support and being used to make vacuum interrupter 4 conductings, and V-type support 3 is provided with circular hole, and this circular hole and V-type support 3 matched in clearance are passed in rotating shaft 2; Described conducting mechanism comprises cam 5, be arranged at pivot pin 7, motion bar 8 and back-moving spring 9 in the kidney slot 6 of cam 5; Described cam 5 is provided with the hexagon ring corresponding with rotating shaft 2, and rotating shaft 2 is passed this hexagon ring cam 5 is fixed in the rotating shaft 2, and V-type support 3 is upside down in the insulation crust 1; Its lower end is provided with U type groove 10; Pivot pin 7 is arranged in this U type groove 10, and motion bar 8 is arranged at the below of pivot pin 7, and it comprises the end cap on top and the straight-bar of bottom; Back-moving spring 9 is arranged at the below of end cap, and the straight-bar lower end is arranged in the vacuum interrupter 4.Be provided with the limiting plate 11 that is used for fixing vacuum interrupter 4 in the described insulation crust 1.The lower end of described vacuum interrupter 4 is fixed on vacuum interrupter 4 on the insulation crust 1 through copper nut 12.The lower end of described vacuum interrupter 4 connects upper contact head 13.When the needs close switch, rotating shaft 2, under rotating shaft 2 drove, cam 5 rotated; The kidney slot 6 interior pivot pins 7 that are arranged at cam 5 move down under cam 5 drives, and can press motion bar 8 to move down, when moving to extreme lower position, and the contact conducting in the vacuum interrupter 4; Move down in the process at motion bar 8, the end cap on motion bar 8 tops moves down, and makes back-moving spring 9 compressions; When wanting the cut-off breaker switch, rotating shaft 2 is reversed, then cam 5 upwards changes; Pivot pin 7 rises under the elastic force of back-moving spring 9, or innervation moves up, and vacuum interrupter 4 inner contacts is broken off connect.Need bigger power to make the closing of contact when killer switch of the present invention is closed, make back-moving spring 9 compressions simultaneously, therefore relatively slowly; When breaking off, then under the effect of back-moving spring 9, can break off rapidly; Because vacuum interrupter 4 can produce electric arc, the quick separation of contact when breaking off; Help accelerating extinguishing of electric arc, avoid the generation of contingency.Killer switch among the present invention detects through test, and the rated voltage of using is 12KV, rated current 630A; Operation-current 20KA, making capability 50KA, short time withstand current 20KA; Power-frequency withstand voltage is alternate to be 42KV, and the power-frequency withstand voltage fracture is 48KV, and lightning impulse withstand voltage is alternate to be 75KV; The lightning impulse withstand voltage fracture is 85KV, short time withstand current 20KA in 2 seconds, and be 5000 mechanical endurance.Can know that through above parameter killer switch high-voltage resistance capability of the present invention and turn-off capacity have tangible creativeness apparently higher than the existing circuit breaker switch.
Claims (4)
1. killer switch; It is characterized in that: it comprises the insulation crust of U type, the rotating shaft of hexagonal, the conducting mechanism of being fixed in the V-type support, the vacuum interrupter that are used for supporting revolving shaft on the insulating support and being used to make the vacuum interrupter conducting, and the V-type support is provided with circular hole, and this circular hole and V-type support matched in clearance are passed in rotating shaft; Described conducting mechanism comprises cam, be arranged at pivot pin, motion bar and back-moving spring in the kidney slot of cam; Described cam is provided with the hexagon ring corresponding with rotating shaft, and rotating shaft is passed this hexagon ring cam is fixed in the rotating shaft, and the V-type support is upside down in the insulation crust; Its lower end is provided with U type groove; Pivot pin is arranged in this U type groove, and motion bar is arranged at the below of pivot pin, and it comprises the end cap on top and the straight-bar of bottom; Back-moving spring is arranged at the below of end cap, and the straight-bar lower end is arranged in the vacuum interrupter.
2. killer switch according to claim 1 is characterized in that: be provided with the limiting plate that is used for fixing vacuum interrupter in the described insulation crust.
3. killer switch according to claim 1 is characterized in that: the lower end of described vacuum interrupter is fixed on vacuum interrupter on the insulation crust through copper nut.
4. killer switch according to claim 1 is characterized in that: the lower end of described vacuum interrupter connects upper contact head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010572053 CN102024614B (en) | 2010-12-02 | 2010-12-02 | Breaker switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010572053 CN102024614B (en) | 2010-12-02 | 2010-12-02 | Breaker switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102024614A CN102024614A (en) | 2011-04-20 |
| CN102024614B true CN102024614B (en) | 2012-12-26 |
Family
ID=43865790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010572053 Active CN102024614B (en) | 2010-12-02 | 2010-12-02 | Breaker switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102024614B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853976B (en) * | 2019-11-21 | 2022-01-21 | 浙江紫光电器有限公司 | Vacuum load switch |
| CN111463062B (en) * | 2020-04-27 | 2022-06-14 | 郑州大学 | Environment-friendly tank type multi-fracture vacuum circuit breaker |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4059250B2 (en) * | 2002-08-12 | 2008-03-12 | 株式会社日立製作所 | Power circuit breaker |
| CN2671110Y (en) * | 2003-12-26 | 2005-01-12 | 周友东 | Arc eliminating chamber actuator for vacuum isolating load switch |
| DE202006005092U1 (en) * | 2006-03-28 | 2006-07-20 | Fritz Driescher KG Spezialfabrik für Elektrizitätswerksbedarf GmbH & Co | Operation of a fast response electrical vacuum power switch uses spring energy via a crank linkage mechanism |
| CN101315849B (en) * | 2008-05-23 | 2010-11-10 | 西安交通大学 | Spring operating mechanism cooperated with 126kV vacuum circuit breaker separation-integration characteristic |
| CN201298463Y (en) * | 2008-11-10 | 2009-08-26 | 宁波华通电器集团股份有限公司 | Driving structure for circuit breaker |
| CN201417705Y (en) * | 2009-05-13 | 2010-03-03 | 山东泰开高压开关有限公司 | 252kV outdoor high voltage circuit breaker |
| CN202025674U (en) * | 2010-12-02 | 2011-11-02 | 江苏德春电力科技有限公司 | Breaker switch |
-
2010
- 2010-12-02 CN CN 201010572053 patent/CN102024614B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102024614A (en) | 2011-04-20 |
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| 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 | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213138 Jiangsu province Changzhou new North Menghe River town of Fumin Industrial Park Tang Jia Er Road No. 58 Patentee after: Jiangsu spring power Polytron Technologies Inc Address before: 213138 Jiangsu province Changzhou new North Menghe River town of Fumin Industrial Park Tang Jia Er Road No. 58 Patentee before: Jiangsu Dechun Power Electric Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |