CN201796808U - External insulation sealing device of vacuum arc-extinguishing chamber - Google Patents
External insulation sealing device of vacuum arc-extinguishing chamber Download PDFInfo
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- CN201796808U CN201796808U CN2010202364813U CN201020236481U CN201796808U CN 201796808 U CN201796808 U CN 201796808U CN 2010202364813 U CN2010202364813 U CN 2010202364813U CN 201020236481 U CN201020236481 U CN 201020236481U CN 201796808 U CN201796808 U CN 201796808U
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- cylindrical shell
- vacuum tube
- sealing device
- vacuum
- insulation sealing
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Abstract
The utility model relates to a sealing device, in particular to an external insulation sealing device of a vacuum arc-extinguishing chamber used on an outdoor vacuum circuit breaker. The technical scheme includes that the external insulation sealing device of the external insulation sealing device comprises a cylinder with an internal cavity, feed holes distributed symmetrically are disposed at one end of the cylinder, a static contact mounting hole is correspondingly arranged at the end of the cylinder provided with the feed holes, a vacuum tube is arranged in the cylinder and disposed in the cavity and corresponds to the end with the feed holes, a static contact of the vacuum tube penetrates in the static contact mounting hole and is connected with the cylinder tightly, a silica gel insulating layer is coated on the surface of the vacuum tube corresponding to the feed holes, coated on the outer circumference of the cylinder and filled in clearance between the inner wall of the cylinder and the vacuum tube. The external insulation sealing device is simple in structure, convenient in processing and operating, high in insulativity and safe and reliable.
Description
Technical field
The utility model relates to a kind of sealing device, especially a kind of vacuum extinction outdoor insulation sealing device, specifically a kind of vacuum extinction outdoor insulation sealing device that is used on the outdoor vacuum circuit breaker.
Background technology
The vacuum extinction outdoor insulation Sealing Technology (pole seals admittedly) that is used at present on the outdoor vacuum circuit breaker has two kinds, a kind of is to adopt SMC (Sheet molding compound) unsaturated-resin and silastic material to be pressed into the compound inslation tube at twice, puts into the embedding of vacuum interrupter reusable liquid silicon rubber then and forms; Another is to adopt the pressure gel technology that vacuum interrupter is put into mould to form with the epoxide resin material compacting.
The first method operation is loaded down with trivial details, and the silicon rubber encapsulation technology is not overripened at present simultaneously, and the surperficial degree of adhesion that the silastic material of encapsulating solidifies back and vacuum interrupter is difficult to guarantee; The inner bubble that easily produces of silicon rubber after solidifying simultaneously, these have all influenced the insulating capacity that pole seals admittedly.
Though the second method processing technology is simple, owing to be that high-pressure molding causes vacuum interrupter to withstand shocks, must wrap padded coaming on the surface of vacuum interrupter, utilize the elastic deformation of padded coaming to alleviate the suffered pressure of vacuum interrupter.Increase combination interface like this, made non-uniform electric, reduced the integral insulation ability of phase post.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of vacuum extinction outdoor insulation sealing device is provided, and it is simple in structure, and process operation is convenient, and the insulated enclosure ability is strong, and is safe and reliable.
According to the technical scheme that the utility model provides, described vacuum extinction outdoor insulation sealing device comprises cylindrical shell, is provided with cavity in the described cylindrical shell; One end of cylindrical shell is provided with the charging hole of symmetrical distribution, and cylindrical shell is provided with the fixed contact installing hole corresponding to the end that charging hole is set; Be provided with vacuum tube in the described cylindrical shell, described vacuum tube is positioned at cavity corresponding to the end that charging hole is set; The fixed contact of described vacuum tube penetrates the fixed contact installing hole, and is fastened and connected with cylindrical shell; The corresponding surface coverage of vacuum tube and charging hole has the silicone insulation layer, and described silicone insulation layer covers the outer peripheral face of cylindrical shell, and fills the gap between cylinder inboard wall and vacuum tube.
Also be provided with the moving contact wire hole on the described cylindrical shell, described moving contact wire hole is close to the moving contact of vacuum tube, and is connected with cavity.The fixed contact of described vacuum tube penetrates the fixed contact installing hole, and utilizes nut and cylindrical shell to be fastened and connected.Form some circular lugs on the outer peripheral face of described silicone insulation layer.The movable contact head end of described vacuum tube is provided with positioning sleeve, and described positioning sleeve is enclosed within vacuum tube corresponding to the end that moving contact is set, and contacts with the inwall of cylindrical shell.Described cylindrical shell convexes with locating piece corresponding to the other end that charging hole is set, and is provided with screw hole in the described locating piece.Be provided with screw hole in the described moving contact wire hole.Described circular lug comprises first surface and second surface; The second surface of circular lug all tilts to first surface.The material of described cylindrical shell comprises the SMC unsaturated-resin.
Advantage of the present utility model: the material of cylindrical shell adopts SMC unsaturated-resin, convenient processing and manufacture; Utilize the silicone insulation layer to cover the outer surface of cylindrical shell, and fill the gap of cylinder inboard wall and vacuum tube, guarantee vacuum tube and outside insulation.Simple in structure, process operation is convenient, and the insulated enclosure ability is strong, and is safe and reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model cylindrical shell.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the structural representation behind the installation vacuum tube in the cylindrical shell.
Fig. 4 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As Fig. 1～shown in Figure 4: the utility model comprises screw hole 1, locating piece 2, cylindrical shell 3, charging hole 4, fixed contact installing hole 5, moving contact 6, vacuum tube 7, nut 8, fixed contact 9, second surface 10, moving contact wire hole 11, first surface 12, circular lug 13, positioning sleeve 14, silicone insulation layer 15 and cavity 16.
As shown in Figure 4: be provided with cavity 16 in the described cylindrical shell 3, described cavity 16 distributes along the axial length of cylindrical shell 3.One end of cylindrical shell 3 is provided with the charging hole 4 of symmetrical distribution, and cylindrical shell 3 is provided with fixed contact installing hole 5 corresponding to the end that charging hole 4 is set, and described fixed contact installing hole 5 is connected with cavity 16.Be provided with vacuum tube 7 in the cavity 16 of described cylindrical shell 3, the fixed contact 9 of described vacuum tube 7 is installed in the fixed contact installing hole 5; The end of fixed contact 9 penetrates fixed contact installing hole 5, and utilizes nut 8 and cylindrical shell 3 to be fastened and connected; The moving contact 6 of vacuum tube 7 is positioned at cavity 16.The end of the moving contact 6 of vacuum tube 7 is provided with positioning sleeve 14, and described positioning sleeve 14 is enclosed within on the vacuum tube 7 after passing moving contact 6, and contacts with the inwall of cylindrical shell 3.Cylindrical shell 3 is provided with moving contact wire hole 11, the moving contact 6 of described moving contact wire hole 11 contiguous vacuum tubes 7; Moving contact wire hole 11 is connected with cavity 11.Described vacuum tube 7 has silicone insulation layer 15 with charging hole 4 corresponding surface coverage, and described silicone insulation layer 15 covers the outer peripheral face of cylindrical shell 3, and the gap between filled vacuum pipe 7 and cylindrical shell 3 inwalls; Described vacuum tube 7 utilizes silicone insulation layer 15 and exterior insulation.
Described cylindrical shell 3 convexes with locating piece 2 corresponding to the other end that charging hole 4 is set, and is provided with screw hole 1 in the described locating piece 2; Described locating piece 2, screw hole 1 are used for cylindrical shell 3 is fixedlyed connected with Shell of circuit breaker.Also be provided with screw hole 1 in the described moving contact wire hole 11, the line of the moving contact 6 of vacuum tube 7 is outwards drawn by moving contact wire hole 11.The material of described cylindrical shell 3 comprises SMC (Sheet molding compound) unsaturated-resin, is convenient to the compression moulding of cylindrical shell 3.Form circular lug 13 on the described silicone insulation layer 15 that covers on the cylindrical shell 3, described circular lug 13 comprises first surface 12 and second surface 10; Described second surface 19 all tilts to first surface 12 directions.
As Fig. 1～shown in Figure 4: be the schematic diagram of the utility model forming process.Barrel molds is put into an amount of SMC unsaturated-resin material, on thermoset plastics shaped by fluid pressure forcing press, suppress, can access cylindrical shell 3 structures as shown in Figure 1.After cylindrical shell 3 suppresses, vacuum tube 7 is packed in the cavity 16 of cylindrical shell 3, the fixed contact 9 of vacuum tube 7 is installed in the fixed contact installing hole 5 of cylindrical shell 3, and utilizes nut 8 and cylindrical shell 3 to be fastened and connected; Moving contact 6 ends of vacuum tube 7 utilize positioning sleeve 14 to be installed in the cylindrical shell 3; Form cylinder assembly, the cylinder assembly that vacuum tube 7 is housed in the cylindrical shell 3 is put into second width of cloth mould, put into an amount of silastic material again, on forcing press, suppress; Obtain covering the silicone insulation layer 15 of cylindrical shell 3, the gap that described silicone insulation layer 15 filling cylindrical shell 3 inwall and vacuum tube are 7; Thereby obtain vacuum extinction outdoor insulation sealing device.
Add man-hour, the cylindrical shell 3 of first compression moulding, an end of cylindrical shell 3 is provided with two charging holes 4, and in making like this in the cartridge module, the gap between the inwall of the outer wall of vacuum tube 7 and cylindrical shell 3 is connected with charging hole 4; The cylinder assembly that vacuum tube 7 is installed in cylindrical shell 3 is put into second width of cloth mould, when putting into an amount of silastic material again and suppressing, the silicon rubber of the liquefaction at first charging hole 4 from the cylindrical shell 3 flows to the gap of 3 of vacuum tube 7 and cylindrical shells, is full of whole die cavity then, until compression moulding; All be coated with silicone insulation layer 15 on the outer peripheral face of cylindrical shell 3, form circular lug 13 on the described silicone insulation layer 15.
Because whole pressing process is vacuum tube 7 once to be sealed to finish under low temperature, low-pressure, make vacuum tube 7 external insulations thoroughly not be subjected to the influence of external environment (dust, moisture etc.), thoroughly avoid occurring coagulating frost, this forming technique need not apply chemical coupling agent between silicone insulation layer 15 and vacuum tube 7 simultaneously, form the combination of molecule aspect, guarantee the reliability that connects; Do not need to manage to keep the pressure at two kinds of interfaces yet, utilize the insulation at the elastic deformation assurance interface of padded coaming, reduced the interface, make Electric Field Distribution even, improved the integral insulation ability of phase post, reduce the course of processing simultaneously, reduce manufacturing cost.
As shown in Figure 4: during use, the end of insulated tension pole is stretched in the cavity 16, and insulated tension pole is provided with double threaded screw corresponding to the end that is positioned at cavity 16, and the other end of double threaded screw links to each other with the moving contact 6 of vacuum tube 7 by flexibly connecting piece.When insulated tension pole when driving mechanism moves, can relative vacuum moving contact 6 motions of pipe 7, realize the closed of circuit breaker or disconnect.Described vacuum tube 7 is positioned at cylindrical shell 3, is coated with silicone insulation layer 15 on the outer peripheral face of described cylindrical shell 3, can increase the integral insulation ability of vacuum tube 7 with cylindrical shell 3, and is safe and reliable.
The material of the utility model cylindrical shell 3 adopts SMC unsaturated-resin, convenient processing and manufacture; Utilize silicone insulation layer 15 to cover the outer surface of cylindrical shell 3, and fill the gap of cylindrical shell 3 inwalls and vacuum tube 7, guarantee vacuum tube 7 and outside insulation.Simple in structure, process operation is convenient, and the insulated enclosure ability is strong, and is safe and reliable.
Claims (8)
1. a vacuum extinction outdoor insulation sealing device comprises cylindrical shell (3), is provided with cavity (16) in the described cylindrical shell (3); One end of cylindrical shell (3) is provided with the charging hole (4) of symmetrical distribution, and cylindrical shell (3) is provided with fixed contact installing hole (5) corresponding to the end that charging hole (4) is set; It is characterized in that: be provided with vacuum tube (7) in the described cylindrical shell (3), described vacuum tube (7) is positioned at cavity (16) corresponding to the end that charging hole (4) is set; The fixed contact (9) of described vacuum tube (7) penetrates fixed contact installing hole (5), and is fastened and connected with cylindrical shell (3); Vacuum tube (7) has silicone insulation layer (15) with the corresponding surface coverage of charging hole (4), and described silicone insulation layer (15) covers the outer peripheral face of cylindrical shell (3), and fills the gap between cylindrical shell (3) inwall and vacuum tube (7).
2. vacuum extinction outdoor insulation sealing device according to claim 1, it is characterized in that: also be provided with moving contact wire hole (11) on the described cylindrical shell (3), described moving contact wire hole (11) is close to the moving contact (6) of vacuum tube (7), and is connected with cavity (16).
3. vacuum extinction outdoor insulation sealing device according to claim 1 is characterized in that: the fixed contact (9) of described vacuum tube (7) penetrates fixed contact installing hole (5), and utilizes nut (8) and cylindrical shell (3) to be fastened and connected.
4. vacuum extinction outdoor insulation sealing device according to claim 1 is characterized in that: form some circular lugs (13) on the outer peripheral face of described silicone insulation layer (15).
5. vacuum extinction outdoor insulation sealing device according to claim 1, it is characterized in that: moving contact (6) end of described vacuum tube (7) is provided with positioning sleeve (14), described positioning sleeve (14) is enclosed within vacuum tube (7) corresponding to the end that moving contact (6) are set, and contacts with the inwall of cylindrical shell (3).
6. vacuum extinction outdoor insulation sealing device according to claim 1 is characterized in that: described cylindrical shell (3) convexes with locating piece (2) corresponding to the other end that charging hole (4) is set, and is provided with screw hole (1) in the described locating piece (2).
7. vacuum extinction outdoor insulation sealing device according to claim 2 is characterized in that: be provided with screw hole (1) in the described moving contact wire hole (11).
8. vacuum extinction outdoor insulation sealing device according to claim 4 is characterized in that: described circular lug (13) comprises first surface (12) and second surface (10); The second surface (10) of circular lug (13) all tilts to first surface (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202364813U CN201796808U (en) | 2010-06-24 | 2010-06-24 | External insulation sealing device of vacuum arc-extinguishing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202364813U CN201796808U (en) | 2010-06-24 | 2010-06-24 | External insulation sealing device of vacuum arc-extinguishing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201796808U true CN201796808U (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202364813U Expired - Fee Related CN201796808U (en) | 2010-06-24 | 2010-06-24 | External insulation sealing device of vacuum arc-extinguishing chamber |
Country Status (1)
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| CN (1) | CN201796808U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184796A (en) * | 2011-05-13 | 2011-09-14 | 浙江华高电气有限公司 | Composite post insulator with vacuum arc extinguish chamber for high-voltage device |
| CN104282482A (en) * | 2014-10-30 | 2015-01-14 | 南车株洲电力机车有限公司 | Outdoor vertical type vacuum circuit breaker |
| CN108074775A (en) * | 2016-11-15 | 2018-05-25 | 上海雷博司电气股份有限公司 | A kind of pole and its production method for outdoor pole top switch |
| CN108597944A (en) * | 2018-04-19 | 2018-09-28 | 无锡市锡山湖光电器有限公司 | A kind of multi-functional vacuum circuit breaker of open air all insulation |
| WO2021148217A1 (en) * | 2020-01-22 | 2021-07-29 | Siemens Aktiengesellschaft | Vacuum switch |
| WO2021148218A1 (en) * | 2020-01-22 | 2021-07-29 | Siemens Aktiengesellschaft | Vacuum switch |
| CN114005711A (en) * | 2021-10-22 | 2022-02-01 | 泉州市大西洋电力科技有限公司 | Special-shaped structure of upper and lower outlet terminals of circuit breaker and installation method thereof |
-
2010
- 2010-06-24 CN CN2010202364813U patent/CN201796808U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184796A (en) * | 2011-05-13 | 2011-09-14 | 浙江华高电气有限公司 | Composite post insulator with vacuum arc extinguish chamber for high-voltage device |
| CN104282482A (en) * | 2014-10-30 | 2015-01-14 | 南车株洲电力机车有限公司 | Outdoor vertical type vacuum circuit breaker |
| CN104282482B (en) * | 2014-10-30 | 2016-05-04 | 南车株洲电力机车有限公司 | A kind of outdoor vertical type vacuum breaker |
| CN108074775A (en) * | 2016-11-15 | 2018-05-25 | 上海雷博司电气股份有限公司 | A kind of pole and its production method for outdoor pole top switch |
| CN108597944A (en) * | 2018-04-19 | 2018-09-28 | 无锡市锡山湖光电器有限公司 | A kind of multi-functional vacuum circuit breaker of open air all insulation |
| WO2021148217A1 (en) * | 2020-01-22 | 2021-07-29 | Siemens Aktiengesellschaft | Vacuum switch |
| WO2021148218A1 (en) * | 2020-01-22 | 2021-07-29 | Siemens Aktiengesellschaft | Vacuum switch |
| CN114005711A (en) * | 2021-10-22 | 2022-02-01 | 泉州市大西洋电力科技有限公司 | Special-shaped structure of upper and lower outlet terminals of circuit breaker and installation method thereof |
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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: 20110413 Termination date: 20110624 |