CN201936801U - Large-current solid-sealed polar pole - Google Patents
Large-current solid-sealed polar pole Download PDFInfo
- Publication number
- CN201936801U CN201936801U CN2010206841262U CN201020684126U CN201936801U CN 201936801 U CN201936801 U CN 201936801U CN 2010206841262 U CN2010206841262 U CN 2010206841262U CN 201020684126 U CN201020684126 U CN 201020684126U CN 201936801 U CN201936801 U CN 201936801U
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- Prior art keywords
- pole
- polar pole
- shape
- sealed polar
- solid
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- Expired - Lifetime
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model provides a large-current solid-sealed polar pole, which comprises a vacuum arc extinguishing chamber, an epoxy resin shell and a metal insert, wherein a movable end of the solid-sealed polar pole is designed to a U-shaped or a reversed U-shaped connecting piece, the top plane of the solid-sealed polar pole is joined with the end surface of a movable conducting rod of the vacuum arc extinguishing chamber, and two pins of the polar pole are respectively connected with a lower leading-out seat of the solid-sealed polar pole in parallel. The large-current solid-sealed polar pole has a simple and reliable structure. Compared with a sliding connecting structure and a conducting-clip and soft-connection combined connecting structure, the component processing difficulty is low, the product structure is simple and compact, the technical performance is stable, the cost is low, the production efficiency is high, and a vacuum circuit breaker which is assembled by the large-current solid-sealed polar pole can be ensured to run safely and reliably.
Description
Technical field
The utility model relates to a kind of pole, the structure of especially great-current fixed sealed pole.
Background technology
Pole is the vitals of vacuum circuit-breaker, is about to vacuum interrupter and major loop conduction, installation elements etc., carries out integrated pouredly with epoxy resin, is encapsulated into a global facility, and the environment that has successfully solved vacuum circuit-breaker tolerates problem.Because pole has good insulation preformance, miniaturization, non-maintaining, easy installation etc., is widely used in power industry.In the pole product structure, tache motorice need satisfy current-carrying and two functions of divide-shut brake motion simultaneously, and is at present, common in the industry
Pole
The tache motorice structure mainly contains two kinds: a kind of is the sliding connection structure of forming with flexible members such as spring touch finger or watchband fingertips; Other is the combined connecting structure of conductive clip and flexible link.But at 2000A and when above, these two kinds of structures have following deficiency for rated current, and sliding connection structure is had relatively high expectations to quality, crudy and the product axiality etc. of parts itself, and the bad debugging of mechanical parameter when producing; In conductive clip and the combined connecting structure that is flexible coupling, be the through-current capability that guarantees the big electric current of product, the volume of conductive clip and flexible link is all bigger, and structure is complexity also, and contact-making surface is more, is unfavorable for reducing the resistance of whole galvanic circle.These factors all can have influence on the quality of pole.
The utility model content
The purpose of this utility model is to provide a kind of great-current fixed sealed pole of end face bridging arrangement, satisfies the through-current capability of big rated current, and is simple in structure, with low cost, guarantees the vacuum circuit-breaker safe and reliable operation with its assembling.
The technical solution of the utility model is: a kind of great-current fixed sealed pole, comprise vacuum interrupter, the epoxy resin housing, metal insert, wherein, the tache motorice of pole is arranged to " U " shape or is fallen " U " shape flexible link, its top plan and vacuum interrupter moving conductive rod end face overlap joint, its two " pin " are connected in parallel with the following outlet seat of pole respectively.
" U " shape of the tache motorice of described pole or " U " shape flexible link that falls are to be formed by the pure copper foil compacting.
Described moving conductive rod and following outlet seat all are to be processed by fine copper.
Described " U " shape or fall " U " shape flexible link top plan place, the conduction end of two " pin ", the moving conductive rod end, all there is silver coating at the conductive surface place of following outlet seat.
It is simple and reliable for structure that the utility model adopts, and the part processing difficulty is low, technical performance stable, with low cost, improved production efficiency and product quality greatly.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the partial sectional view of the real end face bridging arrangement of the utility model;
Among the figure: outlet seat under the 1-, 2-moving conductive rod, 3-" U " shape or " U " shape flexible link that falls.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As Fig. 1 and Fig. 2, a kind of great-current fixed sealed pole that the utility model provides, comprise vacuum interrupter, the epoxy resin housing, metal insert, wherein, the tache motorice of pole, be arranged to " U " shape or fall " U " shape flexible link 3, its top plan overlaps with vacuum interrupter moving conductive rod 2 end faces, and its two " pin " is connected in parallel with the following outlet seat 1 of pole respectively.
Preferably, " U " shape of the tache motorice of pole or " U " shape flexible link 3 that falls are to be formed by the pure copper foil compacting.
Preferably, moving conductive rod 2 and following outlet seat 1 all are to be processed by fine copper.
Preferably, be to improve conductive capability and excellent contact, " U " shape or fall " U " shape flexible link top plan place, the conduction end of two " pin ", the moving conductive rod end, the conductive surface place of following outlet seat all carries out silver-plated processing.
According to the experience of material characteristic and electrician trade, the cross section current capacity 〉=3A/mm2 of fine copper can extrapolate required minimum current-carrying area of section according to the rated current size of pole in view of the above.Therefore as long as outlet seat 1, vacuum interrupter moving conductive rod 2 and " U " shape or fall each faying surface area between " U " shape flexible link 3 greater than the required minimum current-carrying area of section of product when design under guaranteeing just can be satisfied the current-carrying requirement of great-current fixed sealed pole fully.For example, when the production rated current was the great-current fixed sealed pole of 2500A, tache motorice adopted end face bridging arrangement of the present utility model, and its minimum current-carrying area of section is 2500/3=833mm
2Get vacuum interrupter moving conductive rod 2 end face diameter φ 35mm, there is the screwed hole of a M12 centre, so the current-carrying area of section of vacuum interrupter moving conductive rod 2 end faces of pole is: π * 17.5
2-π * 6
2=849mm
2, satisfy the current-carrying requirement of rated current 2500A; " U " shape or the width of " U " shape flexible link 3 of falling are designed to 60mm, and Thickness Design is 8mm, and because of its two " pin " is connected in parallel with the following outlet seat 1 of pole respectively, the current-carrying area of section is: 60 * 8 * 2=960mm
2, satisfy the current-carrying requirement of rated current 2500A; " U " shape or fall that current-carrying overlaps area greater than 833mm between " U " shape flexible link 3 and the following outlet seat 1
2, both can satisfy the through-current capability of rated current greatly, guarantee vacuum circuit-breaker safe and reliable operation with its assembling.
The utility model has not only satisfied the instructions for use of great-current fixed sealed pole fully, and compare with the combined connecting structure that is flexible coupling with sliding connection structure and conductive clip, the part processing difficulty is low, product structure is simply compact, technical performance is stable, with low cost, the production efficiency height is guaranteed the vacuum circuit-breaker safe and reliable operation with its assembling.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (4)
1. great-current fixed sealed pole, comprise vacuum interrupter, the epoxy resin housing, metal insert, it is characterized in that: the tache motorice of pole, be arranged to " U " shape or fall " U " shape flexible link (3), its top plan overlaps with vacuum interrupter moving conductive rod (2) end face, and its two " pin " is connected in parallel with the following outlet seat (1) of pole respectively.
2. pole according to claim 1 is characterized in that: " U " shape of the tache motorice of described pole or " U " shape flexible link (3) that falls are to be formed by the pure copper foil compacting.
3. pole according to claim 1 is characterized in that: described moving conductive rod (2) and following outlet seat (1) all are to be processed by fine copper.
4. pole according to claim 1, it is characterized in that: described " U " shape or fall " U " shape flexible link (3) top plan place, article two, the conduction end of " pin ", moving conductive rod (2) end, all there is silver coating at the conductive surface place of following outlet seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206841262U CN201936801U (en) | 2010-12-28 | 2010-12-28 | Large-current solid-sealed polar pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206841262U CN201936801U (en) | 2010-12-28 | 2010-12-28 | Large-current solid-sealed polar pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936801U true CN201936801U (en) | 2011-08-17 |
Family
ID=44448316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206841262U Expired - Lifetime CN201936801U (en) | 2010-12-28 | 2010-12-28 | Large-current solid-sealed polar pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337406A (en) * | 2013-06-17 | 2013-10-02 | 北海银河产业投资股份有限公司 | Soft connection of vacuum arc extinguishing chamber |
| CN104332351A (en) * | 2014-06-30 | 2015-02-04 | 天津平高智能电气有限公司 | Soft connection device and embedded pole using the same |
-
2010
- 2010-12-28 CN CN2010206841262U patent/CN201936801U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337406A (en) * | 2013-06-17 | 2013-10-02 | 北海银河产业投资股份有限公司 | Soft connection of vacuum arc extinguishing chamber |
| CN104332351A (en) * | 2014-06-30 | 2015-02-04 | 天津平高智能电气有限公司 | Soft connection device and embedded pole using the same |
| CN104332351B (en) * | 2014-06-30 | 2017-05-24 | 天津平高智能电气有限公司 | Soft connection device and embedded pole using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |