CN203026442U - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
- Publication number
- CN203026442U CN203026442U CN 201220162318 CN201220162318U CN203026442U CN 203026442 U CN203026442 U CN 203026442U CN 201220162318 CN201220162318 CN 201220162318 CN 201220162318 U CN201220162318 U CN 201220162318U CN 203026442 U CN203026442 U CN 203026442U
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- China
- Prior art keywords
- moving contact
- contact
- connection block
- conductive rod
- vacuum circuit
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- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a vacuum circuit breaker. The vacuum circuit breaker includes a ceramic housing. A vacuum arc extinguishing cavity is arranged in the ceramic housing. A stationary contact is arranged on the lower end portion of the vacuum arc extinguishing cavity. A connection base is arranged on the upper end portion of the ceramic housing. A moving contact passes through the central hole of the connection base. A bellows is arranged between the lower end face of the connection base and the lower end portion of the moving contact. A grading shield is arranged on the lower end portion of the connection base. The lower end of an upper wire outgoing base is connected with the upper end of the connection base. An opening spring is sleeved onto the moving contact which is extended into the upper portion of the connection base. A double-end screw is fixed onto the upper end portion of the moving contact in a thread manner. A movable electrically-conductive rod is sleeved onto the double-end screw. The other end of the double-end screw is fixed onto a buffer in a thread manner. A belleville spring is arranged between the buffer and the movable electrically-conductive rod. An electrically-conductive spring contact finger is arranged between the outer circumference of the movable electrically-conductive rod and the inner wall of the upper wire outgoing base. According to the technical scheme of the utility model, advantages of good stability, less internal heat and low cost can be realized.
Description
Technical field
The utility model relates to a kind of improvement of vacuum circuit-breaker, and the vacuum circuit-breaker that particularly a kind of reliability is high, inner heat is few, cost is low belongs to the electric equipment technical field.
Background technology
Vacuum circuit-breaker because of its arc-extinguishing medium and arc extinguishing after the dielectric in contact gap be all that high vacuum is gained the name; It has advantages of that volume is little, lightweight, be applicable to frequent operation, arc extinguishing need not overhaul, and uses comparatively universal in power distribution network.The vacuum circuit-breaker of prior art comprises wire outlet seat 1, vacuum interrupter 2, lower wire outlet seat 3, moving conductive rod 4, nut 5, butterfly spring 6, plain cushion 7, double threaded screw 8, power spring fingertip 9, screw 10, spring washer 11 as shown in Figure 1; Described upper wire outlet seat 1 is fixed on the top of vacuum interrupter 2 by spring washer 11, screw 10; Described lower wire outlet seat 3 is arranged on the bottom of vacuum interrupter 2; Described double threaded screw 8 is arranged on the bottom of vacuum interrupter 2, and passes the through hole of lower wire outlet seat 3; Described moving conductive rod 4 is arranged in the through hole of lower wire outlet seat 3; Described power spring fingertip 9 is arranged between the inwall of the excircle of lower wire outlet seat 3 and through hole; Described plain cushion 7, butterfly spring 6, nut 5 are arranged on double threaded screw 8, with fixing moving conductive rod 4.During described vacuum circuit-breaker separating brake, the external force that overcomes resistance is mainly released energy by the tripping spring in operating mechanism and provides, and has increased the complexity of mechanism, has reduced the reliability of mechanism; The connected mode of the vacuum interrupter of described vacuum circuit-breaker and lower wire outlet seat easily produces mechanical stress and virtual connections for adopting the face overlap joint of double threaded screw.
The utility model content
The purpose of this utility model is to provide the vacuum circuit-breaker that a kind of reliability is high, inner heat is few, cost is low.
The utility model is achieved through the following technical solutions: a kind of vacuum circuit-breaker comprises power spring fingertip, buffer, upper wire outlet seat, moving conductive rod, tripping spring, Connection Block, bellows, moving contact, fixed contact, ceramic package; Described ceramic package inside is provided with the vacuum extinction cavity; Described fixed contact is arranged on the bottom of vacuum extinction cavity; Described Connection Block is arranged on the upper end of ceramic package; Described moving contact passes the centre bore of Connection Block; Described bellows is arranged between the bottom of the lower surface of Connection Block and moving contact; Be provided with grading shield on the bottom of described Connection Block; Described grading shield parcel moving contact and bellows; The periphery of described fixed contact is provided with grading shield; Described moving contact and fixed contact contact site periphery are provided with grading shield; The lower end of described upper wire outlet seat is connected with the upper end of Connection Block; Described tripping spring is set on the moving contact that stretches into Connection Block top; The upper end screw thread of described moving contact is fixed a double end screw rod; Described moving conductive rod is set on double threaded screw; The other end screw thread of described double threaded screw is fixed on buffer; Be provided with butterfly spring between described buffer and moving conductive rod; Described power spring fingertip is arranged between the inwall of the excircle of moving conductive rod and upper wire outlet seat.
Preferably, the export department of described upper wire outlet seat is provided with the power spring fingertip.
Preferably, described fixed contact screw thread is fixed on the bottom of ceramic package.
The beneficial effects of the utility model are embodied in: vacuum circuit-breaker described in the utility model adopts tripping spring to embed the layout type that the separating brake energy is provided of vacuum circuit-breaker, simplified the operating mechanism of vacuum circuit-breaker, the parts of mechanism have been reduced, improve the reliability of mechanism, the utility model scheme adopts the thread connecting mode of Connection Block and upper wire outlet seat simultaneously, guaranteed the reliability that connects, reduced the loop resistance of vacuum circuit-breaker, reduce the vacuum circuit-breaker inner heat, saved cost.
Description of drawings
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Fig. 1 is the cutaway view of the vacuum circuit-breaker of prior art;
Fig. 2 is the cutaway view of vacuum circuit-breaker described in the utility model;
Wherein: 1, upper wire outlet seat; 2, vacuum interrupter; 3, lower wire outlet seat; 4, moving conductive rod; 5, nut; 6, butterfly spring; 7, plain cushion; 8, double threaded screw; 9, power spring fingertip; 10, screw; 11, spring washer; 21, power spring fingertip; 22, buffer; 23, upper wire outlet seat; 24, moving conductive rod; 25, tripping spring; 26, butterfly spring; 27, double threaded screw; 28, Connection Block; 29, bellows; 30, moving contact; 31, fixed contact; 32, ceramic package; 33, grading shield.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described.
Be a kind of vacuum circuit-breaker of the present utility model as shown in Figure 2, comprise power spring fingertip 21, buffer 22, upper wire outlet seat 23, moving conductive rod 24, tripping spring 25, Connection Block 28, bellows 29, moving contact 30, fixed contact 31, ceramic package 32; Described ceramic package 32 inside are provided with the vacuum extinction cavity; Described fixed contact 31 is arranged on the bottom of vacuum extinction cavity; Described Connection Block 28 is arranged on the upper end of ceramic package 32; Described moving contact 30 passes the centre bore of Connection Block 28; Described bellows 29 is arranged between the bottom of the lower surface of Connection Block 28 and moving contact 30; Be provided with grading shield 33 on the bottom of described Connection Block 28; Described grading shield 33 parcel moving contact 30 and bellowss 29; The periphery of described fixed contact 31 is provided with grading shield 33; Described moving contact 30 and fixed contact 31 contact site peripheries are provided with grading shield 33; The lower end of described upper wire outlet seat 23 is connected with the upper end of Connection Block 28; Described tripping spring 25 is set on the moving contact 30 that stretches into Connection Block 28 tops; The upper end screw thread of described moving contact 30 is fixed a double end screw rod 27; Described moving conductive rod 24 is set on double threaded screw 27; The other end screw thread of described double threaded screw 27 is fixed on buffer 22; Be provided with butterfly spring 26 between described buffer 22 and moving conductive rod 24; Described power spring fingertip 21 is arranged between the inwall of the excircle of moving conductive rod 24 and upper wire outlet seat 23; The export department of described upper wire outlet seat 23 is provided with power spring fingertip 21; Described fixed contact 31 screw threads are fixed on the bottom of ceramic package 32.
The beneficial effects of the utility model are embodied in: vacuum circuit-breaker described in the utility model adopts tripping spring to embed the layout type that the separating brake energy is provided of vacuum circuit-breaker, simplified the operating mechanism of vacuum circuit-breaker, the parts of mechanism have been reduced, improve the reliability of mechanism, the utility model scheme adopts the thread connecting mode of Connection Block and upper wire outlet seat simultaneously, guaranteed the reliability that connects, reduced the loop resistance of vacuum circuit-breaker, reduce the vacuum circuit-breaker inner heat, saved cost.
Be only below concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on the utility model rights protection scope.
Claims (3)
1. a vacuum circuit-breaker, is characterized in that: comprise power spring fingertip, buffer, upper wire outlet seat, moving conductive rod, tripping spring, Connection Block, bellows, moving contact, fixed contact, ceramic package; Described ceramic package inside is provided with the vacuum extinction cavity; Described fixed contact is arranged on the bottom of vacuum extinction cavity; Described Connection Block is arranged on the upper end of ceramic package; Described moving contact passes the centre bore of Connection Block; Described bellows is arranged between the bottom of the lower surface of Connection Block and moving contact; Be provided with grading shield on the bottom of described Connection Block; Described grading shield parcel moving contact and bellows; The periphery of described fixed contact is provided with grading shield; Described moving contact and fixed contact contact site periphery are provided with grading shield; The lower end of described upper wire outlet seat is connected with the upper end of Connection Block; Described tripping spring is set on the moving contact that stretches into Connection Block top; The upper end screw thread of described moving contact is fixed a double end screw rod; Described moving conductive rod is set on double threaded screw; The other end screw thread of described double threaded screw is fixed on buffer; Be provided with butterfly spring between described buffer and moving conductive rod; Described power spring fingertip is arranged between the inwall of the excircle of moving conductive rod and upper wire outlet seat.
2. vacuum circuit-breaker according to claim 1, it is characterized in that: the export department of described upper wire outlet seat is provided with the power spring fingertip.
3. vacuum circuit-breaker according to claim 1, it is characterized in that: described fixed contact screw thread is fixed on the bottom of ceramic package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162318 CN203026442U (en) | 2012-04-17 | 2012-04-17 | Vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162318 CN203026442U (en) | 2012-04-17 | 2012-04-17 | Vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026442U true CN203026442U (en) | 2013-06-26 |
Family
ID=48650404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220162318 Expired - Fee Related CN203026442U (en) | 2012-04-17 | 2012-04-17 | Vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026442U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198963A (en) * | 2012-04-17 | 2013-07-10 | 苏州朗格电气有限公司 | Vacuum circuit breaker |
| CN108766832A (en) * | 2018-07-12 | 2018-11-06 | 东莞市联洲知识产权运营管理有限公司 | A kind of novel vacuum circuit breaker |
| CN108987180A (en) * | 2018-07-12 | 2018-12-11 | 东莞市联洲知识产权运营管理有限公司 | A kind of vacuum circuit breaker switching off/on device |
| CN108987175A (en) * | 2018-07-12 | 2018-12-11 | 东莞市联洲知识产权运营管理有限公司 | A kind of quick vacuum circuit breaker of separating brake |
| CN109166756A (en) * | 2018-09-11 | 2019-01-08 | 国网新疆电力有限公司经济技术研究院 | A kind of high-performance speed vacuum circuit breaker |
-
2012
- 2012-04-17 CN CN 201220162318 patent/CN203026442U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198963A (en) * | 2012-04-17 | 2013-07-10 | 苏州朗格电气有限公司 | Vacuum circuit breaker |
| CN108766832A (en) * | 2018-07-12 | 2018-11-06 | 东莞市联洲知识产权运营管理有限公司 | A kind of novel vacuum circuit breaker |
| CN108987180A (en) * | 2018-07-12 | 2018-12-11 | 东莞市联洲知识产权运营管理有限公司 | A kind of vacuum circuit breaker switching off/on device |
| CN108987175A (en) * | 2018-07-12 | 2018-12-11 | 东莞市联洲知识产权运营管理有限公司 | A kind of quick vacuum circuit breaker of separating brake |
| CN109166756A (en) * | 2018-09-11 | 2019-01-08 | 国网新疆电力有限公司经济技术研究院 | A kind of high-performance speed vacuum circuit breaker |
| CN109166756B (en) * | 2018-09-11 | 2019-08-23 | 国网新疆电力有限公司经济技术研究院 | A kind of high-performance speed vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20200417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |