CN203659737U - Shell for vacuum switch tube - Google Patents
Shell for vacuum switch tube Download PDFInfo
- Publication number
- CN203659737U CN203659737U CN201320766574.0U CN201320766574U CN203659737U CN 203659737 U CN203659737 U CN 203659737U CN 201320766574 U CN201320766574 U CN 201320766574U CN 203659737 U CN203659737 U CN 203659737U
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- Prior art keywords
- annular metal
- welded
- connect
- ceramic body
- tube body
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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 shell for a vacuum switch tube. 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; and 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. The shell for 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 housing for 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 (traditional double is integral piece for the earthenware of the housing of vacuum switch tube, 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 housing for vacuum switch tube in functional reliability and useful life.
The technical scheme that realizes the utility model object is: a kind of housing for vacuum switch tube, described housing comprise both sides all there is the annular metal sheet of the portion of being welded to connect, be positioned at two elasticity bodys that annular metal sheet is welded to connect portion both sides, be positioned at each elasticity body be welded to connect away from endless metal the ceramic body of one end of portion, for the each ceramic body of shutoff away from endless metal be welded to connect the opening of one end of portion cover plate assembly, connect a corresponding metal bellows and the endless metal auxiliary welding plate with a ceramic body of this metal bellows adaptation; Each cover plate assembly center is provided with circular hole; Described annular metal sheet, elasticity body, ceramic body, cover plate assembly and endless metal auxiliary welding plate enclose and form a containing cavity.
In such scheme, 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, the other end is welded on one end that approaches annular metal sheet of a corresponding endless metal auxiliary welding plate, and the other end of endless metal auxiliary welding plate is weldingly fixed on a corresponding ceramic body.
In such scheme, on annular metal sheet, be arranged in containing cavity and as the second quiet power part, this second quiet power part is arranged in containing cavity in abutting connection with the plate body of centre bore.
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.In addition, elasticity body is subject to self structure restriction, and in the time being weldingly connected with ceramic body, percent defective is higher; The present embodiment by setting up an endless metal auxiliary welding plate between elasticity body and ceramic body, one end and the elasticity body of this endless metal auxiliary welding plate are weldingly connected, the other end and ceramic body are weldingly connected, thereby effectively reduce manufacturing process difficulty, promote rate of finished products.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the one application schematic diagram of housing shown in Fig. 1.
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 housing for vacuum switch tube, as shown in Figure 1, described housing comprise both sides all there is the annular metal sheet 4 of the portion of being welded to connect 41, be positioned at two elasticity bodys 5 that annular metal sheet is welded to connect portion both sides, be positioned at each elasticity body be welded to connect away from endless metal the ceramic body 6 of one end of portion, for the each ceramic body of shutoff be welded to connect away from endless metal the opening of one end of portion cover plate assembly 7, connect a corresponding metal bellows and the endless metal auxiliary welding plate 8 with a ceramic body of this metal bellows adaptation; Each cover plate assembly center is provided with circular hole 71; Described annular metal sheet 4, elasticity body 5, ceramic body 6, cover plate assembly 7 and endless metal auxiliary welding plate 8 enclose and form a containing cavity 11.
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, the other end is welded on one end that approaches annular metal sheet of a corresponding endless metal auxiliary welding plate, and the other end of endless metal auxiliary welding plate is weldingly fixed on a corresponding ceramic body.
On annular metal sheet, be arranged in containing cavity and as the second quiet power part 42, this second quiet power part 42 is arranged in containing cavity in abutting connection with the plate body of centre bore 43.
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.In addition, elasticity body is subject to self structure restriction, and in the time being weldingly connected with ceramic body, percent defective is higher; The present embodiment by setting up an endless metal auxiliary welding plate between elasticity body and ceramic body, one end and the elasticity body of this endless metal auxiliary welding plate are weldingly connected, the other end and ceramic body are weldingly connected, thereby effectively reduce manufacturing process difficulty, promote rate of finished products.
(application examples 1)
Fig. 2 is the one application schematic diagram of housing shown in Fig. 1, has shown the concrete application mode of one of embodiment 1.
Should use-case be a kind of housing for vacuum switch tube, as shown in Figure 2, 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 comprise both sides all there is the annular metal sheet 4 of the portion of being welded to connect 41, be positioned at two elasticity bodys 5 that annular metal sheet is welded to connect portion both sides, be positioned at each elasticity body be welded to connect away from endless metal the ceramic body 6 of one end of portion, for the each ceramic body of shutoff be welded to connect away from endless metal the opening of one end of portion cover plate assembly 7, connect a corresponding metal bellows and the endless metal auxiliary welding plate 8 with a ceramic body of this metal bellows adaptation; Each cover plate assembly center is provided with circular hole 71; Described annular metal sheet 4, elasticity body 5, ceramic body 6 cover plate assemblies 7 and endless metal auxiliary welding plate 8 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 should use-case, 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, the other end is welded on one end that approaches annular metal sheet of a corresponding endless metal auxiliary welding plate, and the other end of endless metal auxiliary welding plate is weldingly fixed on a corresponding ceramic body.
In should use-case, 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.
Should use-case structure comparatively reasonable, 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.In addition, elasticity body is subject to self structure restriction, and in the time being weldingly connected with ceramic body, percent defective is higher; Should use-case by set up an endless metal auxiliary welding plate between elasticity body and ceramic body, one end and the elasticity body of this endless metal auxiliary welding plate are weldingly connected, the other end and ceramic body are weldingly connected, thereby effectively reduce manufacturing process difficulty, promote rate of finished products.
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 (3)
1. the housing for vacuum switch tube, 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), be positioned at two elasticity bodys (5) that annular metal sheet is welded to connect portion both sides, be positioned at each elasticity body is welded to connect one end of portion ceramic body (6) away from endless metal, be welded to connect the cover plate assembly (7) of the opening of one end of portion away from endless metal for the each ceramic body of shutoff, connect a corresponding metal bellows and the endless metal auxiliary welding plate (8) with a ceramic body of this metal bellows adaptation, each cover plate assembly center is provided with circular hole (71), described annular metal sheet (4), elasticity body (5), ceramic body (6), cover plate assembly (7) and endless metal auxiliary welding plate (8) enclose and form a containing cavity (11).
2. the housing for 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, the other end is welded on one end that approaches annular metal sheet of a corresponding endless metal auxiliary welding plate, and the other end of endless metal auxiliary welding plate is weldingly fixed on a corresponding ceramic body.
3. the housing for 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), this second quiet power part (42) is arranged in containing cavity in abutting connection with the plate body of centre bore (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766574.0U CN203659737U (en) | 2013-11-27 | 2013-11-27 | Shell for vacuum switch tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766574.0U CN203659737U (en) | 2013-11-27 | 2013-11-27 | Shell for vacuum switch tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659737U true CN203659737U (en) | 2014-06-18 |
Family
ID=50926099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320766574.0U Expired - Fee Related CN203659737U (en) | 2013-11-27 | 2013-11-27 | Shell for vacuum switch tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203659737U (en) |
-
2013
- 2013-11-27 CN CN201320766574.0U patent/CN203659737U/en not_active Expired - Fee Related
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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 |