CN204966382U - Vacuum arc extinguishing chamber - Google Patents
Vacuum arc extinguishing chamber Download PDFInfo
- Publication number
- CN204966382U CN204966382U CN201520798781.3U CN201520798781U CN204966382U CN 204966382 U CN204966382 U CN 204966382U CN 201520798781 U CN201520798781 U CN 201520798781U CN 204966382 U CN204966382 U CN 204966382U
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- fairlead
- bellows
- conducting rod
- quiet
- retainer ring
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Abstract
The utility model discloses a vacuum arc extinguishing chamber, it includes an insulating casing, a quiet end subassembly and one moves the end subassembly, quiet end subassembly with it follows to move the end subassembly insulating casing's axial setting, it includes and moves end conducting rod, a bellows, an uide bushing, one moves the apron and one prevent turning round the fixed loop to move the end subassembly, the bellows with the uide bushing is along keeping away from the direction of quiet end subassembly is overlapped in proper order and is established move on the end conducting rod, move the end conducting rod with the uide bushing is along axial swing joint and follow circumferencial direction fixed connection, the one end of moving the apron weld in insulating casing's one end, the other end that should move the apron weld in the bellows is close to the terminal surface of uide bushing, the uide bushing is close to be provided with a plurality of draw -in grooves on the terminal surface of bellows, prevent the bottom of turning round the fixed loop and extend a plurality of pothooks, should prevent turning round the fixed loop cladding and be in on the uide bushing just the pothook card is established in the draw -in groove.
Description
Technical field
The utility model relates to a kind of electric component, is specifically related to a kind of vacuum interrupter.
Background technology
Traditional vacuum interrupter comprises an insulation crust, a quiet end assembly and a moved end assembly, and described quiet end assembly and described moved end assembly are arranged along the axis of described insulation crust.Described quiet end assembly comprises a quiet cover plate, quiet end conducting rod and a fixed contact, and described quiet cover plate and described fixed contact are separately fixed at the two ends of described quiet end conducting rod, and the side of described quiet cover plate is welded in one end of described insulation crust.Described moved end assembly comprises dynamic cover plate, a moving contact, a moved end conducting rod, a bellows and a fairlead, described moving contact is fixed on the conducting rod of described moved end and described stationary contact dateline is oppositely arranged, described bellows and described fairlead are sheathed on the conducting rod of described moved end successively, described bellows is between described moving contact and described fairlead, one end of described dynamic cover plate is welded in the other end of described insulation crust, and the other end of this dynamic cover plate is welded in the end face of described bellows near described fairlead.
But, the principal element affecting the vacuum interrupter life-span is its mechanical endurance, and the principal element that its mechanical endurance determines is the mechanical endurance of insulation crust and the mechanical endurance of bellows, bellows due to its wall thin, bear that gentry's contracting is very capable and to bear rotary torsion poor, and when being subject to twisting force in moved end conducting rod installation process, torsion can be transmitted on described bellows, and described bellows even directly leaks gas by declining to a great extent mechanical endurance after torsion generation deformation, thus will vacuum interrupter be directly caused to damage.
Utility model content
In view of this, be necessary that providing a kind of effectively can hinder the vacuum interrupter of offsetting by torsion when installing moved end conducting rod.
A kind of vacuum interrupter, it comprises an insulation crust, a quiet end assembly and a moved end assembly, and described quiet end assembly and described moved end assembly are arranged along the axis of described insulation crust; Described moved end assembly comprises a moved end conducting rod, a bellows, a fairlead, a dynamic cover plate and anti-ly turn round retainer ring; Described bellows and described fairlead are set on the conducting rod of described moved end along the direction away from described quiet end assembly successively; Described moved end conducting rod is flexibly connected vertically with described fairlead and is along the circumferential direction fixedly connected with; One end of described dynamic cover plate is welded in one end of described insulation crust, and the other end of this dynamic cover plate is welded in the end face of described bellows near described fairlead; Described fairlead is provided with multiple draw-in groove on the end face of described bellows; Multiple grab is extended in the described anti-bottom turning round retainer ring, and this is anti-turns round retainer ring and to be coated on described fairlead and described grab is fastened in described draw-in groove.
The vacuum interrupter that the utility model provides is by preventing turning round retainer ring in fairlead outer cladding, when moving conductive rod Installation and Debugging are subject to torsion, torsion is transmitted to anti-turning round on the grab of retainer ring by fairlead, and torsion is hindered counteracting, thus effectively prevents bellows to be subject to torsion generation deformation.
Accompanying drawing explanation
Fig. 1 is the cutaway view of vacuum interrupter described in the utility model.
Fig. 2 is the cooperation schematic diagram of fairlead in the vacuum interrupter in Fig. 1 and moved end conducting rod.
Embodiment
Clearly understand to make the purpose of this utility model, technical scheme and advantage, below in conjunction with drawings and Examples, the utility model is further elaborated, be to be understood that, specific embodiment described herein only in order to explain the utility model, and is not used in restriction the utility model.
As shown in Figure 1, the utility model provides a kind of vacuum interrupter 100, and it comprises insulation crust 10, quiet end assembly 20 and a moved end assembly 30, and described quiet end assembly 20 and described moved end assembly 30 are arranged along the axis of described insulation crust 10.
Cylindrically, it comprises upper end 11 and a lower end 12 relative with described upper end 11 to described insulation crust 10.Described quiet end assembly 20 is fixed on the position of described insulation crust 10 near described lower end 12, and described moved end assembly 30 is fixed on the position of described insulation crust 10 near described upper end 11.In present embodiment, described insulation crust 10 is porcelain cylinder.
Described quiet end assembly 20 comprises quiet end conducting rod 21, fixed contact 22 and a quiet cover plate 23.Described quiet cover plate 22 and described fixed contact 23 are separately fixed at the two ends of described quiet end conducting rod 21, and the side of described quiet cover plate 23 is welded in the lower end 12 of described insulation crust 10.
Described moved end assembly 30 comprises the dynamic cover plate 35 and of moved end conducting rod 31, moving contact 32, bellows 33, fairlead 34, to be prevented turning round retainer ring 36.Described moving contact 32 is fixed on one end of described moved end conducting rod 31, and is oppositely arranged with described fixed contact 22.Described bellows 33 and described fairlead 34 are set on described moved end conducting rod 31 successively along the direction away from described quiet end assembly 20.Described moved end conducting rod 31 is flexibly connected vertically with described fairlead 34 and is along the circumferential direction fixedly connected with; Concrete, described moved end conducting rod 31 is provided with a gathering sill 311 vertically, the inwall of described fairlead 34 is provided with a guide pad 341, and described guide pad 341 is fastened in described gathering sill 311.Described fairlead 34 is provided with multiple draw-in groove 342 on the end face of described bellows 33.One end of described dynamic cover plate 35 is welded in the upper end 11 of described insulation crust 10, and the other end of this dynamic cover plate 35 is welded in the end face of described bellows 33 near described fairlead 34.Describedly anti-turn round retainer ring 36 and comprise a covering portion 361, a junction 362 and multiple grab 363.Described covering portion 361 comprises the bottom 3612 that described in a top 3611 and, top 3611 is relative, described connecting portion 362 is fixed on the inwall of the bottom 3612 of described covering portion 361, and described grab 363 is fixed on the edge of described connecting portion 362 and extends to the direction near described top 3611.Described anti-retainer ring 36 of turning round to be coated on described fairlead 34 and described grab 363 is fastened in described draw-in groove 342.The top 3611 of described covering portion 361 is welded mutually with described fairlead 34, and the end face that described connecting portion 362 deviates from described grab 363 welds mutually with described dynamic cover plate 35.
In present embodiment, described fairlead 34 is along the circumferential direction provided with 4 draw-in grooves 342 on the end face of described bellows 33, described anti-retainer ring 36 of turning round is provided with 4 grabs 363 along the edge of described connecting portion 362, and described 4 grab 363 correspondences are fastened in 4 draw-in grooves 342.
When described moved end conducting rod 31 is subject to torsion, torsion is conducted on described fairlead 34 by described gathering sill 311 and described guide pad 341.By described, torsion on described fairlead 34 prevents that turning round retainer ring 36 conducts on described grab 363 and described draw-in groove 342, prevent that turning round retainer ring 36 has certain toughness, thus effectively the torsion of described moved end conducting rod 31 is hindered counteracting due to described.
The vacuum interrupter that the utility model provides is by preventing turning round retainer ring in fairlead outer cladding, when moving conductive rod Installation and Debugging are subject to torsion, torsion is transmitted to anti-turning round on the grab of retainer ring by fairlead, and torsion is hindered counteracting, thus effectively prevents bellows to be subject to torsion generation deformation.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. a vacuum interrupter, it comprises an insulation crust, a quiet end assembly and a moved end assembly, and described quiet end assembly and described moved end assembly are arranged along the axis of described insulation crust; Described moved end assembly comprises a moved end conducting rod, a bellows, a fairlead, a dynamic cover plate and anti-ly turn round retainer ring; Described bellows and described fairlead are set on the conducting rod of described moved end along the direction away from described quiet end assembly successively; Described moved end conducting rod is flexibly connected vertically with described fairlead and is along the circumferential direction fixedly connected with; One end of described dynamic cover plate is welded in one end of described insulation crust, and the other end of this dynamic cover plate is welded in the end face of described bellows near described fairlead; Described fairlead is provided with multiple draw-in groove on the end face of described bellows; Multiple grab is extended in the described anti-bottom turning round retainer ring, and this is anti-turns round retainer ring and to be coated on described fairlead and described grab is fastened in described draw-in groove.
2. vacuum interrupter according to claim 1, is characterized in that, the inwall of described fairlead is provided with a guide pad, and described moved end conducting rod is provided with a gathering sill vertically, and described guide pad is fastened in described gathering sill.
3. vacuum interrupter according to claim 1, is characterized in that, the described anti-bottom turning round retainer ring is welded near one end of described fairlead mutually with described dynamic cover plate.
4. vacuum interrupter according to claim 1, is characterized in that, describedly anti-turn round retainer ring and also comprises a covering portion and a junction; Described covering portion comprises the bottom that described in a top and, top is relative, and described connecting portion is fixed on the inwall of the bottom of described covering portion, and described grab is fixed on the edge of described connecting portion and extends to the direction near described top.
5. vacuum interrupter according to claim 4, is characterized in that, the top of described covering portion is welded mutually with described fairlead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798781.3U CN204966382U (en) | 2015-10-14 | 2015-10-14 | Vacuum arc extinguishing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798781.3U CN204966382U (en) | 2015-10-14 | 2015-10-14 | Vacuum arc extinguishing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966382U true CN204966382U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520798781.3U Active CN204966382U (en) | 2015-10-14 | 2015-10-14 | Vacuum arc extinguishing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966382U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762009A (en) * | 2016-04-08 | 2016-07-13 | 天津平高智能电气有限公司 | Vacuum arc-extinguishing chamber and manufacture method therefor |
| WO2022048322A1 (en) * | 2020-09-04 | 2022-03-10 | 天津首瑞智能电气有限公司 | Vacuum switch tube for circuit breaker and method for manufacturing outer casing thereof |
-
2015
- 2015-10-14 CN CN201520798781.3U patent/CN204966382U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762009A (en) * | 2016-04-08 | 2016-07-13 | 天津平高智能电气有限公司 | Vacuum arc-extinguishing chamber and manufacture method therefor |
| WO2022048322A1 (en) * | 2020-09-04 | 2022-03-10 | 天津首瑞智能电气有限公司 | Vacuum switch tube for circuit breaker and method for manufacturing outer casing thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |