CN203659740U - Vacuum switch tube - Google Patents
Vacuum switch tube Download PDFInfo
- Publication number
- CN203659740U CN203659740U CN201320766580.6U CN201320766580U CN203659740U CN 203659740 U CN203659740 U CN 203659740U CN 201320766580 U CN201320766580 U CN 201320766580U CN 203659740 U CN203659740 U CN 203659740U
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- Prior art keywords
- power part
- moving
- annular metal
- quiet
- metal sheet
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- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a vacuum switch tube. The vacuum switch tube comprises a shell, a moving contact with a moving electricity connection part, and a first static contact with a first static electricity connection part. The moving electricity connection part moves in a reciprocating manner along with the moving contact, and moves towards the first static contact and leans against the first static electricity connection part; The shell comprises: an annular metal plate, two elastic tube bodies, a ceramic tube body, a cover plate assembly, and an annular metal auxiliary welding plate of one ceramic tube body. Two sides of the annular metal plate are provided with a welding connection part; the two elastic tube bodies are located at two side of the welding connecting part of the annular metal plate; the ceramic tube body is located at one end of each elastic tube body which is away from the welding connecting part of the annular metal plate; the cover plate assembly is used for blocking an opening of one end of each elastic tube body which is away from the welding connecting part of the annular metal plate; and the annular metal auxiliary welding plate of one ceramic tube body is connected and matched with a metal bellows. The center of the cover plate assembly is provided with a round hole; the annular metal plate, the elastic tube body, the ceramic tube body, the cover plate assembly and the annular metal auxiliary welding plate are enclosed to form a containing cavity; and the moving electricity connection part of the moving contact and the first static electricity connection part of the first static contact are arranged in the containing cavity. The vacuum switch tube can effectively prevent the ceramic tube body from loosening or fracture and other failure.
Description
Technical field
The utility model belongs to high pressure arc extinguishing technical field, is specifically related to a kind of vacuum switch tube.
Background technology
Patent documentation CN102157297 A discloses a kind of three position vacuum switch tubes, can realize connection, isolation and ground connection three station functions, has the advantages such as compact conformation, reasonable in design, range of application is wider.But also exist weak point: its grounding static contact adopts electric conducting material to make, two ends are fixedly connected with an earthenware by welding manner separately, two earthenwares are in split state, bulk strength poor (earthenware of traditional double-position vacuum switching tube is integral piece, so bulk strength is better); Because moving contact is in the time carrying out the action of high pressure divide-shut brake, meeting direct collision is to grounding static contact, and because impact force is very large, the consistency of adding ceramic body is poor, in actual use, easily causes this place of being welded to connect loosening, causes occurring electric power accident.
Utility model content
It is comparatively reasonable that the purpose of this utility model is to provide a kind of structure, effectively guarantees the vacuum switch tube in functional reliability and useful life.
The technical scheme that realizes the utility model object is: a kind of vacuum switch tube, comprise housing, have moving power part moving contact, there is the first fixed contact of the first quiet power part; Moving power part is followed moving contact and is moved back and forth, and is finally being connected on the first quiet power part in the time that the first fixed contact moves; Described housing comprises that both sides all have the annular metal sheet of the portion of being welded to connect, are positioned at two elasticity bodys that annular metal sheet is welded to connect portion both sides, are positioned at each elasticity body is welded to connect the ceramic body of one end of portion, is welded to connect the opening of one end of portion for the each ceramic body of shutoff away from annular metal sheet cover plate assembly away from annular metal sheet; Each cover plate assembly center is provided with circular hole; Described annular metal sheet, elasticity body, ceramic body and cover plate assembly enclose and form a containing cavity; The first quiet power part of the moving power part of moving contact and the first fixed contact is arranged in this containing cavity.
In such scheme, elasticity body is metal bellows, and one end of each metal bellows is welded on annular metal sheet corresponding one and is welded to connect in portion, and the other end is welded on a ceramic body with this metal bellows homonymy.
In such scheme, on annular metal sheet, be arranged in containing cavity and as the second quiet power part in abutting connection with the plate body of centre bore; Moving contact also comprises the conducting rod being connected with moving power part, and moving power part is between the first quiet power part and the second quiet power part, and conducting rod is through the centre bore of annular metal sheet; The aperture of described centre bore is greater than the external diameter of conducting rod and is less than the external diameter of moving power part; Moving power part is finally being connected on the second quiet power part in the time that the second quiet power part moves.
In such scheme, moving power part is in the time that the first fixed contact moves, and one end away from the second quiet power part of moving power part is finally connected on the first quiet power part; Moving power part is in the time that the second quiet power part moves, and one end that approaches the second quiet power part of moving power part is finally connected on the second quiet power part.
The utility model structure is comparatively reasonable, and in the time carrying out divide-shut brake action, elasticity body can play cushioning effect, effectively prevents that ceramic body from the faults such as loosening or cracked occurring, and have guaranteed functional reliability and useful life.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 is a kind of structural representation of the present utility model, has shown a kind of embodiment of the present utility model.
The present embodiment is a kind of vacuum switch tube, as shown in Figure 1, comprise housing 1, have moving power part 21 moving contact 2, there is the first fixed contact 3 of the first quiet power part 31; Moving power part is followed moving contact and is moved back and forth, and is finally being connected on the first quiet power part in the time that the first fixed contact moves; Described housing comprises that both sides all have the annular metal sheet 4 of the portion of being welded to connect 41, are positioned at two elasticity bodys 5 that annular metal sheet is welded to connect portion both sides, are positioned at each elasticity body is welded to connect the ceramic body 6 of one end of portion, is welded to connect the opening of one end of portion for the each ceramic body of shutoff away from annular metal sheet cover plate assembly 7 away from annular metal sheet; Each cover plate assembly center is provided with circular hole 71; Described annular metal sheet 4, elasticity body 5, ceramic body 6 and cover plate assembly 7 enclose and form a containing cavity 11; The first quiet power part of the moving power part of moving contact and the first fixed contact is arranged in this containing cavity.
In the present embodiment, elasticity body is metal bellows, and one end of each metal bellows is welded on annular metal sheet corresponding one and is welded to connect in portion, and the other end is welded on a ceramic body with this metal bellows homonymy.
In the present embodiment, on annular metal sheet, be arranged in containing cavity and as the second quiet power part 42 in abutting connection with the plate body of centre bore 43; Moving contact also comprises the conducting rod 22 being connected with moving power part, and moving power part is between the first quiet power part and the second quiet power part, and conducting rod is through the centre bore of annular metal sheet; The aperture of described centre bore is greater than the external diameter of conducting rod and is less than the external diameter of moving power part; Moving power part is finally being connected on the second quiet power part in the time that the second quiet power part moves.Moving power part is in the time that the first fixed contact moves, and one end away from the second quiet power part of moving power part is finally connected on the first quiet power part; Moving power part is in the time that the second quiet power part moves, and one end that approaches the second quiet power part of moving power part is finally connected on the second quiet power part.
The present embodiment structure is comparatively reasonable, and in the time carrying out divide-shut brake action, elasticity body can play cushioning effect, effectively prevents that ceramic body from the faults such as loosening or cracked occurring, and have guaranteed functional reliability and useful life.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And these belong to apparent variation or the variation that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (4)
1. a vacuum switch tube, comprise housing (1), have moving power part (21) moving contact (2), there is first fixed contact (3) of the first quiet power part (31); Moving power part is followed moving contact and is moved back and forth, and is finally being connected on the first quiet power part in the time that the first fixed contact moves; It is characterized in that: described housing comprises that both sides all have the annular metal sheet of the portion of being welded to connect (41) (4), are positioned at two elasticity bodys (5) that annular metal sheet is welded to connect portion both sides, are positioned at each elasticity body is welded to connect the ceramic body (6) of one end of portion, is welded to connect the opening of one end of portion for the each ceramic body of shutoff away from annular metal sheet cover plate assembly (7) away from annular metal sheet; Each cover plate assembly center is provided with circular hole (71); Described annular metal sheet (4), elasticity body (5), ceramic body (6) and cover plate assembly (7) enclose and form a containing cavity (11); The first quiet power part of the moving power part of moving contact and the first fixed contact is arranged in this containing cavity.
2. vacuum switch tube according to claim 1, it is characterized in that: elasticity body is metal bellows, one end of each metal bellows is welded on annular metal sheet corresponding one and is welded to connect in portion, and the other end is welded on a ceramic body with this metal bellows homonymy.
3. vacuum switch tube according to claim 2, is characterized in that: on annular metal sheet, be arranged in containing cavity and as the second quiet power part (42) in abutting connection with the plate body of centre bore; Moving contact also comprises the conducting rod (22) being connected with moving power part, and moving power part is between the first quiet power part and the second quiet power part, and conducting rod is through the centre bore of annular metal sheet; The aperture of described centre bore is greater than the external diameter of conducting rod and is less than the external diameter of moving power part; Moving power part is finally being connected on the second quiet power part in the time that the second quiet power part moves.
4. vacuum switch tube according to claim 3, is characterized in that: moving power part is in the time that the first fixed contact moves, and one end away from the second quiet power part of moving power part is finally connected on the first quiet power part; Moving power part is in the time that the second quiet power part moves, and one end that approaches the second quiet power part of moving power part is finally connected on the second quiet power part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766580.6U CN203659740U (en) | 2013-11-27 | 2013-11-27 | Vacuum switch tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766580.6U CN203659740U (en) | 2013-11-27 | 2013-11-27 | Vacuum switch tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659740U true CN203659740U (en) | 2014-06-18 |
Family
ID=50926102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320766580.6U Expired - Fee Related CN203659740U (en) | 2013-11-27 | 2013-11-27 | Vacuum switch tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203659740U (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 |
-
2013
- 2013-11-27 CN CN201320766580.6U patent/CN203659740U/en not_active Expired - Fee Related
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 |
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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: 20140618 Termination date: 20151127 |