CN202905584U - Anti-breakdown ceramic vacuum switch tube - Google Patents
Anti-breakdown ceramic vacuum switch tube Download PDFInfo
- Publication number
- CN202905584U CN202905584U CN 201220605160 CN201220605160U CN202905584U CN 202905584 U CN202905584 U CN 202905584U CN 201220605160 CN201220605160 CN 201220605160 CN 201220605160 U CN201220605160 U CN 201220605160U CN 202905584 U CN202905584 U CN 202905584U
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- China
- Prior art keywords
- tube core
- cover plate
- vacuum switch
- end cover
- end tube
- 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
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model provides an anti-breakdown ceramic vacuum switch tube which is high in insulation level, good in welding air-tightness, stable in product quality and can be ensured to be used in harsh environment conditions. The anti-breakdown ceramic vacuum switch tube comprises a moving end tube core and a static end tube core which are in correspondence with each other and located on the same axis; a moving end cover plate and a static end cover plate are respectively arranged inside the moving end tube core and the static end tube core; a ceramic shell sleeved outside the moving end tube core and the static end tube core is connected between the moving end cover plate and the static end cover plate; and a shielding cylinder is hung inside the ceramic shell. The special points of the anti-breakdown ceramic vacuum switch tube are that the shielding cylinder is internally hung on a metalized boss of the ceramic shell; the metalized boss is located right in the middle of the ceramic shell; the ceramic shell is respectively welded with the moving end cover plate and the static end cover plate via the voltage-sharing shielding covers at the both ends; the voltage-sharing shielding cover is made of oxygen-free copper; and an insulation rubber sleeve is poured on the outer surface of the ceramic shell.
Description
Technical field
The utility model is particularly related to a kind of anti-breakdown ceramic vacuum switch pipe.
Background technology
ZW32 type vacuum switch tube is the vacuum circuit breaker on outdoor lamppost kit of miniaturization, and, the advantage such as floor space little, with low cost, superior performance little with its overall dimension widely applied in national grid transformation and distribution system in recent years.But because ZW32 type vacuum breaker and vacuum switch tube all are the miniaturization products, vacuum switch tube ceramic insulation outer cover height is between 115-120mm, and insulation distance is short, withstand voltage allowance less.For satisfying outdoor hardships precipitation, wait insulating requirements under the environment in freezing winter and in sultry summer, must and be encapsulated in the epoxy sealing sleeve the insulation crust cast silicon rubber of vacuum switch tube.After some ZW32 of circuit breaker producer type vacuum switch tubes cast silicon rubber and encapsulation it being carried out industrial frequency withstand voltage at present detects and high pressure occurs does not often add phenomenon, the high pressure that occurs when the pole-mounted circuit breaker high pressure detects that also has does not add phenomenon, and its reason is that the gas leak phenomenon that the vacuum switch tube high-voltage breakdown produces causes above-mentioned phenomenon.
The utility model content
Technical problem to be solved in the utility model provides that a kind of insulation level is high, welding airtightness good, constant product quality, can guarantee the anti-breakdown ceramic vacuum switch pipe that uses under the environment mal-condition.
The technical solution adopted in the utility model is: it comprises mutual correspondence and is positioned at moved end tube core and quiet end tube core on the same axis, in moved end tube core and quiet end tube core, be respectively equipped with moved end cover plate and quiet end casing, between moved end cover plate and quiet end casing, be connected with the porcelain shell that is enclosed within moved end tube core and quiet end tube core outside, hang shielding cylinder in the porcelain shell, its special character is: hang in the shielding cylinder on the metallization boss of porcelain shell, described metallization boss is positioned at porcelain shell middle, described porcelain shell welds with moved end cover plate and quiet end casing respectively by all pressures radome at its two ends, the described radome material of all pressing is oxygen-free copper, at the casting insulated gum cover of porcelain shell outer surface.
The utility model has the advantages that: for the characteristics that the electric field strength of vacuum switch tube on its end, insulation crust, vacuum three's boundary line is concentrated, all press radome to make the Electric Field Distribution of the inner regional area of vacuum switch tube more how even by configuration; Shielding cylinder is fixed on metallization position, step middle in the ceramic package simultaneously, and this will make the Potential distribution on the insulation crust more even; And at the casting insulated silicon rubber of vacuum switch tube ceramic case outer surface, better improve the voltage endurance of vacuum switch tube, improve the puncture voltage of vacuum switch tube.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A section enlarged drawing of Fig. 1;
Among the figure: moving conductive rod 1, fairlead 2, moved end cover plate 3; all press radome 4, bellows 5, moved end tube core 6; protective cover 7, transition rings 8, shielding cylinder 9; ceramic insulation shell 10, moved end contact 11, quiet end contact 12; quiet end tube core 13 is all pressed radome 14, quiet end casing 15; conducting block 16, insulating gum cover 17, static conductive rod 18.
Embodiment
As shown in the figure; the utility model comprises moved end tube core 6 and the quiet end tube core 13 that mutual correspondence and coaxial line are arranged; described moved end tube core 6 comprises moving conductive rod 1; on moving conductive rod 1, be provided with successively from the bottom to top moved end contact 11, protective cover 7, transition rings 8, bellows 5 and moved end cover plate 3, in moved end cover plate 3, be installed with the fairlead 2 that is enclosed within on the moving conductive rod 1.Described quiet end tube core 13 is by static conductive rod 18, and the quiet end contact 12, quiet end casing 15 and the conducting block 16 that are located at successively on the static conductive rod 18 consist of.Be arranged with ceramic insulation shell 10 at moved end tube core 6 and quiet end tube core 13, one end of ceramic insulation shell 10 welds with moved end cover plate 3 outer fringe seals by all pressures radome 4 with its seal welding, the other end is by all pressing radome 14 and quiet end casing 15 seal weldings, be provided with metallization boss 1001 in ceramic insulation shell 10 interior centers, be welded with shielding cylinder 9 at metallization boss 1001, at the casting insulated gum cover 17 of ceramic insulation shell 10 outer surfaces.
Claims (1)
1. anti-breakdown ceramic vacuum switch pipe, comprise mutual correspondence and be positioned at moved end tube core and quiet end tube core on the same axis, in moved end tube core and quiet end tube core, be respectively equipped with moved end cover plate and quiet end casing, between moved end cover plate and quiet end casing, be connected with the porcelain shell that is enclosed within moved end tube core and quiet end tube core outside, hang shielding cylinder in the porcelain shell, it is characterized in that: hang in the shielding cylinder on the metallization boss of porcelain shell, described metallization boss is positioned at porcelain shell middle, described porcelain shell welds with moved end cover plate and quiet end casing respectively by all pressures radome at its two ends, the described radome material of all pressing is oxygen-free copper, at the casting insulated gum cover of porcelain shell outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605160 CN202905584U (en) | 2012-11-16 | 2012-11-16 | Anti-breakdown ceramic vacuum switch tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605160 CN202905584U (en) | 2012-11-16 | 2012-11-16 | Anti-breakdown ceramic vacuum switch tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905584U true CN202905584U (en) | 2013-04-24 |
Family
ID=48126218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605160 Expired - Fee Related CN202905584U (en) | 2012-11-16 | 2012-11-16 | Anti-breakdown ceramic vacuum switch tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905584U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320989A (en) * | 2017-12-28 | 2018-07-24 | 毛红玲 | A kind of vacuum interrupter promoting weld strength |
| CN109273315A (en) * | 2018-10-23 | 2019-01-25 | 陕西宝光真空电器股份有限公司 | A kind of fixing means and vacuum interrupter of shielding cylinder and porcelain shell |
| CN111192788A (en) * | 2018-11-15 | 2020-05-22 | 河南平芝高压开关有限公司 | Voltage-sharing capacitor and arc extinguish chamber using same |
| CN113299516A (en) * | 2021-04-14 | 2021-08-24 | 珠海沃顿电气有限公司 | Locking pull rod, circuit breaker and looped netowrk cabinet |
-
2012
- 2012-11-16 CN CN 201220605160 patent/CN202905584U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320989A (en) * | 2017-12-28 | 2018-07-24 | 毛红玲 | A kind of vacuum interrupter promoting weld strength |
| CN109273315A (en) * | 2018-10-23 | 2019-01-25 | 陕西宝光真空电器股份有限公司 | A kind of fixing means and vacuum interrupter of shielding cylinder and porcelain shell |
| CN109273315B (en) * | 2018-10-23 | 2024-03-12 | 陕西宝光真空电器股份有限公司 | Method for fixing shielding cylinder and porcelain shell and vacuum arc-extinguishing chamber |
| CN111192788A (en) * | 2018-11-15 | 2020-05-22 | 河南平芝高压开关有限公司 | Voltage-sharing capacitor and arc extinguish chamber using same |
| CN113299516A (en) * | 2021-04-14 | 2021-08-24 | 珠海沃顿电气有限公司 | Locking pull rod, circuit breaker and looped netowrk cabinet |
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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: 20130424 Termination date: 20151116 |
|
| EXPY | Termination of patent right or utility model |