CN202905582U - Vacuum switch tube - Google Patents
Vacuum switch tube Download PDFInfo
- Publication number
- CN202905582U CN202905582U CN 201220533131 CN201220533131U CN202905582U CN 202905582 U CN202905582 U CN 202905582U CN 201220533131 CN201220533131 CN 201220533131 CN 201220533131 U CN201220533131 U CN 201220533131U CN 202905582 U CN202905582 U CN 202905582U
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- CN
- China
- Prior art keywords
- vacuum switch
- switch tube
- utility
- model
- welded
- 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 relates to the technical field of electronic accessories, and especially relates to a vacuum switch tube installed at a vacuum electromagnetic starter. The vacuum switch tube has a sealed container formed by a ceramic circular ring; wherein a corrugated tube is welded to one end of the sealed container, the other end of the corrugated tube is provided with a moving contact; the other end of the sealed container is provided with a metal shielding cover, the metal shielding cover is covered by a circular plate, and a bended static contact is welded to the circular plate. The vacuum switch tube of the utility model has the advantages of simple structure, reasonable design, good breaking capacity, no exposure for arcs, allowable frequent operation, etc.; in addition, the vacuum switch tube is reliable in installation, thus the vacuum switch tube is suitable for a heavy-current explosion-proof switch.
Description
Technical field
The utility model relates to the electronic accessories technical field, especially a kind of vacuum switch tube that is installed on vacuum electromagnetic starter.
Background technology
Vacuum switch tube cut-offs device as circuit, is widely used in flame-proof switch.At present, be used for the vacuum switch tube of flame-proof switch such as vacuum magnetic starter, install complicatedly, it is unreliable to install, and when large electric current by the time generate heat easily, so be difficult to be applicable to large electric current flame-proof switch.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, provide a kind of simple in structure, install reliably, be applicable to the vacuum switch tube of large electric current flame-proof switch.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of vacuum switch tube, have the airtight container that ceramic annulus consists of, and described airtight container one end is welded with bellows, and the bellows other end is provided with moving contact; The described airtight container other end arranges metallic shield, and metallic shield is by the plectane capping, and described plectane is welded with the fixed contact of bending, and described moving contact is provided with two threaded blind holes of inwall car, and fixed contact is provided with location hole and installing hole.
Further, described vacuum switch length of tube is 90-100mm, and the vacuum switch tube width is 30-50mm.
The beneficial effects of the utility model are: the utility model is simple in structure, and is reasonable in design, and it is strong to have breaking capacity, and electric arc does not expose, and allows the advantages such as frequent operation, installs reliably, is applicable to large electric current flame-proof switch.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further specified.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
1. moving contacts among the figure, 2. bellows, 3. airtight container, 4. metallic shield, 5. fixed contact, 1-1. blind hole, 5-1. location hole, 5-2. installing hole.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
Vacuum switch tube as depicted in figs. 1 and 2 has the airtight container 3 that ceramic annulus consists of, and airtight container 3 one ends are welded with bellows 2, and bellows 2 other ends are provided with moving contact 1; Airtight container 3 other ends arrange metallic shield 4, and metallic shield 4 is by the plectane capping, and plectane is welded with the fixed contact 5 of bending, and moving contact 1 is provided with two threaded blind hole 1-1 of inwall car, and fixed contact 5 is provided with location hole 5-1 and installing hole 5-2; The vacuum switch length of tube is 96mm, and width is 36mm.
Above-mentioned execution mode only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with technique can understand content of the present utility model and is implemented; can not limit protection range of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in the protection range of the present utility model.
Claims (2)
1. vacuum switch tube is characterized in that: have the airtight container (3) that ceramic annulus consists of, described airtight container (3) one ends are welded with bellows (2), and bellows (2) other end is provided with moving contact (1); Described airtight container (3) other end arranges metallic shield (4), metallic shield (4) is by the plectane capping, described plectane is welded with the fixed contact (5) of bending, described moving contact (1) is provided with two threaded blind holes of inwall car (1-1), and fixed contact (5) is provided with location hole (5-1) and installing hole (5-2).
2. vacuum switch tube according to claim 1, it is characterized in that: described vacuum switch length of tube is 90-100mm, the vacuum switch tube width is 30-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533131 CN202905582U (en) | 2012-10-17 | 2012-10-17 | Vacuum switch tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533131 CN202905582U (en) | 2012-10-17 | 2012-10-17 | Vacuum switch tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905582U true CN202905582U (en) | 2013-04-24 |
Family
ID=48126216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220533131 Expired - Fee Related CN202905582U (en) | 2012-10-17 | 2012-10-17 | Vacuum switch tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733193A (en) * | 2013-12-24 | 2015-06-24 | 南京南瑞继保电气有限公司 | Switching assembly |
-
2012
- 2012-10-17 CN CN 201220533131 patent/CN202905582U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733193A (en) * | 2013-12-24 | 2015-06-24 | 南京南瑞继保电气有限公司 | Switching assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131017 |