CN201163595Y - Porcelain case component of vacuum arc-extinguishing chamber - Google Patents
Porcelain case component of vacuum arc-extinguishing chamber Download PDFInfo
- Publication number
- CN201163595Y CN201163595Y CNU2008200187198U CN200820018719U CN201163595Y CN 201163595 Y CN201163595 Y CN 201163595Y CN U2008200187198 U CNU2008200187198 U CN U2008200187198U CN 200820018719 U CN200820018719 U CN 200820018719U CN 201163595 Y CN201163595 Y CN 201163595Y
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- CN
- China
- Prior art keywords
- porcelain shell
- shielding cylinder
- shell component
- vacuum arc
- muscle
- 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 - Lifetime
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a porcelain shell component for a vacuum arc-extinguishing chamber, comprising a porcelain shell and a shielding cylinder, wherein, a fixed rib is arranged on the inner wall of the porcelain shell; the shielding cylinder is fixed on the fixed rib of the porcelain shell; an upper opening edge of the shielding cylinder of the porcelain shell component is pressed on the fixed rib in the structural form of outer flanging; and the shape of the outer side face of the upper opening part of the shielding cylinder had better be matched with the fixed rib. The porcelain shell component for the vacuum arc-extinguishing chamber has a simple structure and reliable performance and completely avoids the dropping problem of the shielding cylinder. Moreover, the porcelain shell component adopts a clamping and pressing structure to replace a welding structure, has simple and convenient manufacturing technique, convenient operation, low production cost and high production efficiency and production up-to-standard rate, and also avoids the environmental pollution.
Description
Technical field
The utility model relates to a kind of vacuum arc-extinction porcelain shell component, belongs to the vacuum interrupter technical field, and vacuum interrupter is used to make vacuum switch.
Background technology
Energy basic industries power transmission and distribution industry, it is present that what use more than 95% is vacuum switchgear, the critical piece of vacuum switch---vacuum interrupter manufacturing process complexity, arc control device inside particularly, contact, conducting rod and porcelain shell component are arranged, porcelain shell component has porcelain shell and shielding cylinder, and porcelain shell inwall is provided with fixedly muscle, and shielding cylinder is fixed on the fixedly muscle of porcelain shell.The main effect of shielding cylinder is when cut-offfing generation electric arc between the contact, and the splash around vacuum interrupter of a large amount of metallic vapours and drop is arranged.If these electric arc products are deposited on the inner surface of vacuum interrupter, the dielectric strength of arc control device is reduced.The product that blocks electric arc is played in the effect of shielding cylinder, prevents that insulation crust is generated thing and pollutes.Therefore shielding cylinder to the arc of arc control device after dielectric strength, resume speed and connecting-disconnecting function play an important role, usually shielding cylinder need be welded on securely on the fixedly muscle of porcelain shell inwall, welding needs the cooperation of parts such as silver-copper brazing alloy circle, scolder ring, solder sheet and shielding cylinder retainer plate, the porcelain shell will be through 1500 ℃ of metallization, weld cleans, assembles through nickel plating, annealing in hydrogen atmosphere, parts, operation such as high-temperature soldering in vacuum furnace, the vacuum degree of vacuum extinction chamber interior will be kept above 1.33 * 10
-3State, operation easier is big, and the firm welding situation, owing to inner sealing can't be observed, so be difficult for being found.Not prison welding just causes shielding cylinder to come off easily, and shielding cylinder comes off and can cause entire product to be scrapped, even causes operating electric grid large area power cut.
Welding operation, operation is many, and is time-consuming, take a lot of work, take raw material, but also can cause environmental pollution.
The utility model content
The purpose of this utility model is to provide a kind of vacuum arc-extinction porcelain shell component, and is simple in structure, dependable performance, and cost is low.
Vacuum arc-extinction porcelain shell component described in the utility model has porcelain shell and shielding cylinder, and porcelain shell inwall is provided with fixedly muscle, and shielding cylinder is fixed on the fixedly muscle of porcelain shell, and the turnup structure form is pressed on fixedly on the muscle beyond the upper brim of its shielding cylinder.
With adapting of the upper oral part lateral surface shaped design of shielding cylinder with fixing muscle, as the contact-making surface that tilts, fixedly the upper oral part correspondence position of the bottom of muscle and shielding cylinder is respectively equipped with the inclined contact surface that adapts, and forms the inclined plane contact, can realize multi-faceted chucking, fixation.
During making, at first shielding cylinder is packed in the porcelain shell, make the upper brim height of shielding cylinder surpass the fixedly height of muscle of porcelain shell, on move shielding cylinder, the inclined contact surface of shielding cylinder upper oral part is contacted with the fixing inclined contact surface of muscle bottom, make beyond its turnover the turnup structure form be pressed on fixedly on the muscle fixation the upper brim application of force of shielding cylinder, thoroughly avoided the shielding cylinder problem that comes off, dependable performance.
The utility model has adopted chucking, compressing structure to replace Welding Structure, and manufacture craft is easy, handled easily, time saving and energy saving, saved expensive welding material, reduced production cost, improve production efficiency and production qualification rate, also avoided environmental pollution.Porcelain shell component is simple in structure, has thoroughly avoided the problem that comes off of shielding cylinder, dependable performance, and also shielding cylinder and porcelain shell are closely fixing, the coefficient of safety height, and good pressure-resistant performance, breakdown characteristics is strong, can adapt to the high voltage requirement.The volume that the utility model porcelain shell component can be done is less, helps satisfying the product requirement of miniaturization day by day.
Description of drawings
Fig. 1, the utility model one example structure schematic diagram.
Fig. 2, existing porcelain shell component structural representation.
Among the figure: 1, porcelain shell 2, shielding cylinder 3, fixedly muscle 4, inclined contact surface 5, flanging 6, solder sheet 7, scolder ring 8, scolder circle.
Embodiment
The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.
As shown in Figure 1, vacuum arc-extinction porcelain shell component described in the utility model, porcelain shell 1 and shielding cylinder 2 are arranged, porcelain shell 1 inwall is provided with fixedly muscle 3, the upper brim of shielding cylinder 2 with the version of flanging 5 be pressed on fixedly form on the muscle 3 fixing, fixedly the upper oral part correspondence position of the bottom of muscle 3 and shielding cylinder 2 is respectively equipped with the inclined contact surface 4 that adapts, and forms the inclined plane contact.
During making, at first shielding cylinder 2 is packed in the porcelain shell 1, make the height of the upper brim height of shielding cylinder 2 above porcelain shell internal fixation muscle 3, on move shielding cylinder 2, shielding cylinder 2 upper oral parts are contacted with the fixing inclined contact surface of muscle 3 bottoms, its turnover is pressed on fixedly on the muscle 3 with the version of flanging 5 the upper brim application of force of shielding cylinder 2.Whether have loosening, till processing entangles firm, fixedly secure if can check after carrying out.
As shown in Figure 2, comparison structure schematic diagram for existing porcelain shell component, need parts such as silver-copper brazing alloy circle 8, scolder ring 7, solder sheet 6 and retainer plate, porcelain shell 1 will be handled through 1500 ℃ high temperature metallization, weld also needs through nickel plating, annealing in hydrogen atmosphere, parts cleaning and assembling etc., high-temperature soldering in vacuum furnace.The bad assurance of welding quality, inner sealing can't be checked again, the shielding cylinder obscission happens occasionally.
Claims (3)
1, a kind of vacuum arc-extinction porcelain shell component has porcelain shell and shielding cylinder, and porcelain shell inwall is provided with fixedly muscle, and shielding cylinder is fixed on the fixedly muscle of porcelain shell, it is characterized in that beyond the upper brim of shielding cylinder that the turnup structure form is pressed on fixedly on the muscle.
2, vacuum arc-extinction porcelain shell component according to claim 1, it is characterized in that the upper oral part lateral surface shape of shielding cylinder and fixedly muscle adapt.
3, vacuum arc-extinction porcelain shell component according to claim 2 is characterized in that fixedly the bottom of muscle and the upper oral part correspondence position of shielding cylinder are respectively equipped with the inclined contact surface that adapts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200187198U CN201163595Y (en) | 2008-03-03 | 2008-03-03 | Porcelain case component of vacuum arc-extinguishing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200187198U CN201163595Y (en) | 2008-03-03 | 2008-03-03 | Porcelain case component of vacuum arc-extinguishing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163595Y true CN201163595Y (en) | 2008-12-10 |
Family
ID=40184524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200187198U Expired - Lifetime CN201163595Y (en) | 2008-03-03 | 2008-03-03 | Porcelain case component of vacuum arc-extinguishing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163595Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236858B (en) * | 2008-03-03 | 2011-05-11 | 山东晨鸿电气有限公司 | Vacuum arc-extinction porcelain shell component and its making technology |
| 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 |
| CN112103128A (en) * | 2020-08-11 | 2020-12-18 | 平高集团有限公司 | Vacuum arc-extinguishing chamber cylinder, vacuum arc-extinguishing chamber shielding case and vacuum arc-extinguishing chamber |
-
2008
- 2008-03-03 CN CNU2008200187198U patent/CN201163595Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236858B (en) * | 2008-03-03 | 2011-05-11 | 山东晨鸿电气有限公司 | Vacuum arc-extinction porcelain shell component and its making technology |
| 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 |
| CN112103128A (en) * | 2020-08-11 | 2020-12-18 | 平高集团有限公司 | Vacuum arc-extinguishing chamber cylinder, vacuum arc-extinguishing chamber shielding case and vacuum arc-extinguishing chamber |
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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 |
Granted publication date: 20081210 |
|
| CX01 | Expiry of patent term |