CN2253518Y - Vacuum switching tube - Google Patents
Vacuum switching tube Download PDFInfo
- Publication number
- CN2253518Y CN2253518Y CN 95202102 CN95202102U CN2253518Y CN 2253518 Y CN2253518 Y CN 2253518Y CN 95202102 CN95202102 CN 95202102 CN 95202102 U CN95202102 U CN 95202102U CN 2253518 Y CN2253518 Y CN 2253518Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- switching tube
- vacuum
- insulator
- 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
Links
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a vacuum switching tube which belongs to a circuit vacuum opening and breaking device. The utility model has the purpose that the vacuum switching tube needs to be provided to adapt to the demand of low voltage and heavy current. The utility model is characterized in that an insulator is a minor ceramic plate 7, and the upper surface of the insulator is provided with an annular groove; so the insulation of two sealing surfaces of one side plane can be realized. The shape and the dimension of a metal bellows 4 is similar to the shape and the dimension of the ceramic plate 7, and the metal bellows 4 is exposed at the outside of the utility model. A special mechanism can cause an upper contact and a lower contact 2 of the switching tube to do relative motion, so the switching function of a circuit is finished.
Description
The utility model relates to a kind of circuit vacuum and cut-offs device--vacuum switch tube.
The insulation function of existing vacuum switch tube is by a cartridge type member--the porcelain shell is finished, and its expansion seal assembly--metal bellows is all little than porcelain shell, and is inclusive in the inside.This kind structure is used for high voltage, on the vacuum switch tube of big electric current.But in order to dwindle the volume of vacuum switch tube, be used for low-voltage, the occasion of big electric current, said structure is just inapplicable.
It is littler that the purpose of the utility model just provides a kind of volume, is applicable to low-voltage, the vacuum switch tube of big electric current.
The purpose of the utility model is achieved in that
Insulator is a garden shape porcelain plate that (or two) center is with holes, and two sealing surfaces of tool on its same side plane, its mutually insulated are to be realized by a top cannelure.
Owing to adopted the garden shape insulation porcelain plate of band cannelure, so volume of the present utility model can be done lessly.
Concrete structure of the present utility model and operation are provided by following examples and accompanying drawing 1.
Fig. 1 is according to the vacuum switch tube profile that the utility model proposes, and describes in detail below in conjunction with Fig. 1.
1. be conducting rod.
2. be contact, each one up and down, make by the material of anti-the galvanic corrosion.
3. be radome, prevent the outside splatter of electric arc.
4. be metal bellows, by stretching of this part, contact 2 relatively moves about driving, and with the break-make of formation circuit, and keeps the vacuum of inside.
5. be interior sealing ring.
6. be outer sealing ring.
7. be porcelain plate, it and interior sealing ring 5, outer sealing ring 6 welded seals, the insulation between 5 and 6 is to be realized by the cannelures above 7.
8. conducting rod under being, it is by the hole, garden in the porcelain plate 7.
The utility model is fixed in the specialized agency, and conducting rod 1,8 joins with the circuit two ends respectively up and down.Conducting rod 1,8 relatively moved about specialized agency can make, with on-off circuit.
Claims (1)
1. vacuum switch tube, this device be by conducting rod 1,8, contact 2, and bellows 4, sealing ring 5,6 and insulator are formed, and it is characterized in that insulator is a porcelain plate 7, and its hole, band garden, center is with having two sealing surfaces and a cannelure on the side plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202102 CN2253518Y (en) | 1995-01-29 | 1995-01-29 | Vacuum switching tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202102 CN2253518Y (en) | 1995-01-29 | 1995-01-29 | Vacuum switching tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2253518Y true CN2253518Y (en) | 1997-04-30 |
Family
ID=33855362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95202102 Expired - Fee Related CN2253518Y (en) | 1995-01-29 | 1995-01-29 | Vacuum switching tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2253518Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157507A (en) * | 2013-11-27 | 2014-11-19 | 黄俊龙 | Vacuum switch tube |
| CN104157507B (en) * | 2013-11-27 | 2016-11-30 | 国网山东省电力公司蒙阴县供电公司 | Vacuum switch tube |
-
1995
- 1995-01-29 CN CN 95202102 patent/CN2253518Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157507A (en) * | 2013-11-27 | 2014-11-19 | 黄俊龙 | Vacuum switch tube |
| CN105895445A (en) * | 2013-11-27 | 2016-08-24 | 赵牧青 | Vacuum switching tube having relatively high buffer effect |
| CN104157507B (en) * | 2013-11-27 | 2016-11-30 | 国网山东省电力公司蒙阴县供电公司 | Vacuum switch tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |