CN204303664U - A kind of switch fracture texture and there is the high-voltage switch gear of this switch fracture texture - Google Patents
A kind of switch fracture texture and there is the high-voltage switch gear of this switch fracture texture Download PDFInfo
- Publication number
- CN204303664U CN204303664U CN201420697379.1U CN201420697379U CN204303664U CN 204303664 U CN204303664 U CN 204303664U CN 201420697379 U CN201420697379 U CN 201420697379U CN 204303664 U CN204303664 U CN 204303664U
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- Prior art keywords
- shielding cylinder
- static contact
- switch
- secondary shielding
- epoxy resin
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- 230000003068 static effect Effects 0.000 claims abstract description 82
- 239000003822 epoxy resin Substances 0.000 claims abstract description 36
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 abstract description 21
- 239000007787 solid Substances 0.000 description 10
- 238000002955 isolation Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 230000005684 electric field Effects 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The utility model relates to a kind of switch fracture texture and has the high-voltage switch gear of this switch fracture texture.Wherein a kind of switch fracture texture moving contact comprised for relying on guiding movement to arrange realizes the first static contact of being turned on or off and the second static contact, on described first static contact, conduction is connected with the first shielding cylinder, on described second static contact, conduction is connected with secondary shielding cylinder, described first shielding cylinder is separated from each other with secondary shielding cylinder and by together with epoxy resin sealing, described first shielding cylinder one end adjacent with secondary shielding cylinder alignment or nested arrangements mutually on the direction along both axis.Above-mentioned switch fracture texture volume is little, good insulation preformance, compact conformation.
Description
Technical field
The utility model relates to a kind of switch fracture texture and has the high-voltage switch gear of this switch fracture texture.
Background technology
Solid insulation ring main unit a kind of high-voltage switch gear element and high-voltage live parts is adopted epoxy resin enclosed novel secondary panel switches, because which obviating the use of greenhouse gases SF6, add that good insulation preformance, overall volume are little, environmental suitability is strong and the plurality of advantages such as the degree of modularity is high, obtain in network system and widely popularize.In order to make overall security higher, the epoxy resin outer surface reliable ground of power system requirements solid insulation ring main unit, but most solid loop-net cabinet does not meet this point in the market, and the Insulation Problems of switch incision position is the one of the main reasons causing epoxy resin outer surface to be difficult to ground connection.
The isolating switch isolation fracture of solid insulation ring main unit mainly adopts two kinds of dielectrics in the market, is respectively vacuum insulation medium and air insulation medium.Vacuum interrupter is improved the vacuum interrupter technology internal structure of maturation, and at shell enclosure epoxy resin, become the vacuum interrupter with three stations (conducting, isolation, ground connection), bear the insulation of isolation and ground connection fracture with vacuum medium.Vacuum interrupter structure is simple, and volume is little, is easy to sealing, but because there is gas leakage risk, vacuum is not yet accepted by user completely as the reliability of isolation fracture.And in the market said " solid isolating switch ", be with the mode of the poured with epoxy resin air chamber seal by isolation or ground connection fracture in fact, the dielectric between fracture remains air, and the external supplementary insulation of electric conductor only born by solid.The Chinese patent that such as application number is 200810012076.0, Authorization Notice No. is CN 101620947 B disclosed " epoxy-pouring full-insulation solid isolating switch ", namely air insulation medium is adopted, comprise isolation body and three static contacts, entirety helps sealed integral structure by poured with epoxy resin, and three static contacts are respectively grounding contact, insulating contact and Interposer contact; Isolating switch is gone back guiding movement and be provided with moving contact, moving contact guiding movement is arranged, and for being communicated with Interposer contact with insulating contact or be communicated with Interposer contact and grounding contact, thus realizing the conducting of isolating switch or isolates ground connection.During this class formation separating brake, fracture insulation is born primarily of air, therefore needs to arrange larger fracture spacing, causes overall axial dimension larger; And External Insulation is the compound inslation of air+solid in essence, inevitably air gap is there is between moving contact and epoxy resin during combined floodgate, because of Problems of The Electric Field, often air gap place shelf depreciation is larger, after causing epoxy package to be coated with ground shield, Insulation Test is difficult to pass through, and also causes radial dimension larger.The insulating materials of the solid cabinet isolating switch part earthing of casing is encapsulated in a very large air chamber by the technology that market also has product to use inflating switch cabinet, bulky and expensive.
Utility model content
The purpose of this utility model is to provide that a kind of volume is little, the switch fracture texture of good insulation preformance, and meanwhile, the utility model additionally provides a kind of high-voltage switch gear with this switch fracture texture.
The technical scheme that in the utility model, a kind of switch fracture texture adopts is: a kind of switch fracture texture, the moving contact comprised for relying on guiding movement to arrange realizes the first static contact of being turned on or off and the second static contact, on described first static contact, conduction is connected with the first shielding cylinder, on described second static contact, conduction is connected with secondary shielding cylinder, described first shielding cylinder is separated from each other with secondary shielding cylinder and by together with epoxy resin sealing, described first shielding cylinder one end adjacent with secondary shielding cylinder alignment or nested arrangements mutually on the direction along both axis.
Described first static contact, the second static contact, the first shielding cylinder and the equal sealing of secondary shielding cylinder, in the shell formed by the epoxy resin poured into a mould, are provided with the perforation for described moving contact guiding movement in epoxy resin.
The outer surface of described shell is coated with ground shield.
Described first shielding cylinder and secondary shielding cylinder are cylindrical structure and coaxially arrange.
Described first shielding cylinder and secondary shielding cylinder rely on screw to be fixed on described first static contact and the second static contact one end close to each other respectively, described screw is arranged with for make the first shielding cylinder and secondary shielding cylinder accordingly with the conductive sleeve of the first static contact and the second static contact conducting.
The technical scheme that in the utility model, a kind of high-voltage switch gear adopts is: a kind of high-voltage switch gear, comprise switch fracture texture, the described switch fracture texture moving contact comprised for relying on guiding movement to arrange realizes the first static contact of being turned on or off and the second static contact, on described first static contact, conduction is connected with the first shielding cylinder, on described second static contact, conduction is connected with secondary shielding cylinder, described first shielding cylinder is separated from each other with secondary shielding cylinder and by together with epoxy resin sealing, mutually align or nested arrangements in one end that described first shielding cylinder is adjacent with secondary shielding cylinder on the direction along both axis.
Described first static contact, the second static contact, the first shielding cylinder and the equal sealing of secondary shielding cylinder, in the shell formed by the epoxy resin poured into a mould, are provided with the perforation for described moving contact guiding movement in epoxy resin.
The outer surface of described shell is coated with ground shield.
Described first shielding cylinder and secondary shielding cylinder are cylindrical structure and coaxially arrange.
Described first shielding cylinder and secondary shielding cylinder rely on screw to be fixed on described first static contact and the second static contact one end close to each other respectively.
The utility model adopts technique scheme, on the first static contact in switch fracture texture and the second static contact, conduction is connected with the first shielding cylinder and secondary shielding cylinder respectively, first shielding cylinder and the first static contact equipotential, secondary shielding cylinder and described second static contact equipotential, described first shielding cylinder is separated from each other with secondary shielding cylinder and by together with epoxy resin sealing, mutually align or nested arrangements in one end that described first shielding cylinder is adjacent with secondary shielding cylinder on the direction along both axis, therefore, electric field can in the epoxy resin of the first shielding cylinder and secondary shielding cylinder adjacent Relatively centralized, insulation function between fracture is born primarily of epoxy resin, and the dielectric strength of epoxy resin is very high, therefore, it is possible to greatly reduce the axial dimension of switch fracture texture, simultaneously, mutually align or nested arrangements in one end adjacent with secondary shielding cylinder due to the first shielding cylinder on the direction along both axis, corresponding gap between moving contact with epoxy resin can be shielded completely by the first shielding cylinder and secondary shielding cylinder, the insulation of high-pressure conductor to outside is born by epoxy resin completely, greatly improve insulating properties, the radial dimension of switch fracture texture can be reduced, volume is little, compact conformation, good reliability.
Accompanying drawing explanation
Fig. 1 is an embodiment of a kind of switch fracture texture in the utility model structural representation when being in closing position;
Fig. 2 is the structural representation of Fig. 1 breaker in middle fracture texture when being in sub-gate position.
The name that in figure, each Reference numeral is corresponding is called: 10-upper static contact, the upper fingertip mounting groove of 11-, the upper shielding cylinder of 12-, static contact under 20-, fingertip mounting groove under 21-, shielding cylinder under 22-, 30-spring contact, 40-screw, 50-epoxy package, 60-moving contact, 70-air chamber.
Detailed description of the invention
In the utility model, an a kind of embodiment of switch fracture texture is as shown in Fig. 1 ~ Fig. 2, be a kind of solid insulation fracture for isolating switch major loop, comprise the upper static contact 10 as the first static contact, the lower static contact 20 as the second static contact and move along upper static contact 10 and the axis guide of lower static contact 20 moving contact 60 be turned on or off arranged to realize upper static contact 10 and lower static contact 20.
Upper static contact 10 and lower static contact 20 are cylindrical shape, inner tube wall offers respectively fingertip mounting groove 11 and lower fingertip mounting groove 21, in upper fingertip mounting groove 11 and lower fingertip mounting groove 21, spring contact 30 being all installed, being connected for conducting electricity with the columniform moving contact 60 that vertically guiding movement is arranged.Certainly, in other embodiments, also can such as, by other structure conducting, the watchband-shaped contactors outside spring contact 30 between each static contact and moving contact 60.
The outer peripheral face of upper static contact 10 end portion is provided with screw hole, the corresponding upper shielding cylinder 12 arranged coaxially is fixed on upper static contact 10 by screw 40, screw 40 being arranged with the conductive sleeve for making the first shielding cylinder and the first static contact conducting, the good conducting of upper static contact 10 and upper shielding cylinder 12 can be ensured.The outer peripheral face of lower static contact 20 upper part is provided with screw hole, the corresponding lower shielding cylinder 22 arranged coaxially is fixed on lower static contact 20 by screw 40, screw 40 being arranged with the conductive sleeve for making the first shielding cylinder and the first static contact conducting, the good conducting of lower static contact 20 and lower shielding cylinder 22 can be ensured.Described upper shielding cylinder 12 and lower shielding cylinder 22 are separated from each other and mutually align in adjacent one end on the direction along both axis, and both axis directions form combined shielding.Above-mentioned upper static contact 10, lower static contact 20, upper shielding cylinder 12 and lower shielding cylinder 22 all sealing, in the epoxy package 50 formed by the epoxy resin poured into a mould, are provided with perforation in epoxy package 50, move setting for described moving contact 60.
During isolating switch closing position, moving contact 60 and upper static contact 10 and lower static contact 20 conductive contact, upper static contact 10, lower static contact 20, upper shielding cylinder 12, lower shielding cylinder 22 and moving contact 60 are all equipotential high-pressure electrified conductor, moving contact 60 will realize moving up and down, and inevitably there is gap between epoxy resin, owing to being provided with above-mentioned upper shielding cylinder 12 and lower shielding cylinder 22, upper shielding cylinder 12, close gap between moving contact 60 and epoxy resin can fully shield by lower shielding cylinder 22, the insulation making high-pressure conductor external is born by epoxy resin completely, because the dielectric strength of epoxy resin is far above air, therefore the radial dimension of isolating switch can be less, further, can also spray the ground shield of zero potential on the outer surface of epoxy resin, make inner member from external environment influence and outer surface is tangible, add security, insulation is reliable.
During isolating switch separating brake, moving contact 60 moves downward, be separated with upper static contact 10, still conduct electricity with lower static contact 20 and be connected, an air chamber 70 is formed between upper and lower static contact, now need the voltage bearing isolating switch requirement between upper static contact 10, lower static contact 20, but due to upper shielding cylinder 12 and lower shielding cylinder 22 be equipotential respectively with upper static contact 10 and lower static contact 20, therefore go up between shielding cylinder 12, lower shielding cylinder 22 and there is the voltage required between isolating switch fracture equally; Because upper and lower shielding cylinder 22 is all cast in epoxy resin, nearest, make Relatively centralized in the epoxy resin of electric field line near upper and lower shielding cylinder 22 has a common boundary, and due to the electric field shielding effect of shielding cylinder in air chamber 70, electric-field intensity is very little, and therefore insulation function is born primarily of epoxy resin.Equally, due to the dielectric strength that epoxy resin is very strong, therefore greatly can shorten fracture length, reduce the axial length of the utility model structure, reduce the possibility of shelf depreciation, add insulating reliability, and can realize structural module, structure is simple.
In the utility model, namely an a kind of embodiment of high-voltage switch gear have employed the high-voltage switch gear of above-mentioned switch fracture texture, and concrete structure repeats no more herein.
In the above-described embodiments, mutually align in one end that first shielding cylinder is adjacent with secondary shielding cylinder on the direction along both axis, and be fixed by screw 40 with corresponding static contact, in other embodiments of the present utility model, one end nested arrangements on the direction along both axis that first shielding cylinder is adjacent with secondary shielding cylinder, and other modes also can be adopted to fix and conduct electricity with corresponding static contact to be connected, such as adopt and be welded to connect, riveted joint etc., upper shielding cylinder 12, the material of lower shielding cylinder 22 can adopt material conductor material or semiconductive material that this area shading ring is conventional.In addition, the switch fracture texture in above-described embodiment is used on isolating switch major loop, and in other embodiments, switch fracture texture also can apply to other occasions, such as earthed switch fracture.
Claims (10)
1. a switch fracture texture, the moving contact comprised for relying on guiding movement to arrange realizes the first static contact of being turned on or off and the second static contact, it is characterized in that: on described first static contact, conduction is connected with the first shielding cylinder, on described second static contact, conduction is connected with secondary shielding cylinder, described first shielding cylinder is separated from each other with secondary shielding cylinder and by together with epoxy resin sealing, described first shielding cylinder one end adjacent with secondary shielding cylinder alignment or nested arrangements mutually on the direction along both axis.
2. a kind of switch fracture texture according to claim 1, it is characterized in that: described first static contact, the second static contact, the first shielding cylinder and the equal sealing of secondary shielding cylinder, in the shell formed by the epoxy resin poured into a mould, are provided with the perforation for described moving contact guiding movement in epoxy resin.
3. a kind of switch fracture texture according to claim 2, is characterized in that: the outer surface of described shell is coated with ground shield.
4. a kind of switch fracture texture according to claim 1 or 2 or 3, is characterized in that: described first shielding cylinder and secondary shielding cylinder are cylindrical structure and coaxially arrange.
5. a kind of switch fracture texture according to claim 1 or 2 or 3, it is characterized in that: described first shielding cylinder and secondary shielding cylinder rely on screw to be fixed on described first static contact and the second static contact one end close to each other respectively, described screw is arranged with for make the first shielding cylinder and secondary shielding cylinder accordingly with the conductive sleeve of the first static contact and the second static contact conducting.
6. a high-voltage switch gear, comprise switch fracture texture, the described switch fracture texture moving contact comprised for relying on guiding movement to arrange realizes the first static contact of being turned on or off and the second static contact, it is characterized in that: on described first static contact, conduction is connected with the first shielding cylinder, on described second static contact, conduction is connected with secondary shielding cylinder, described first shielding cylinder is separated from each other with secondary shielding cylinder and by together with epoxy resin sealing, described first shielding cylinder one end adjacent with secondary shielding cylinder alignment or nested arrangements mutually on the direction along both axis.
7. a kind of high-voltage switch gear according to claim 6, it is characterized in that: described first static contact, the second static contact, the first shielding cylinder and the equal sealing of secondary shielding cylinder, in the shell formed by the epoxy resin poured into a mould, are provided with the perforation for described moving contact guiding movement in epoxy resin.
8. a kind of high-voltage switch gear according to claim 7, is characterized in that: the outer surface of described shell is coated with ground shield.
9. a kind of high-voltage switch gear according to claim 6 or 7 or 8, is characterized in that: described first shielding cylinder and secondary shielding cylinder are cylindrical structure and coaxially arrange.
10. a kind of high-voltage switch gear according to claim 6 or 7 or 8, is characterized in that: described first shielding cylinder and secondary shielding cylinder rely on screw to be fixed on described first static contact and the second static contact one end close to each other respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697379.1U CN204303664U (en) | 2014-11-20 | 2014-11-20 | A kind of switch fracture texture and there is the high-voltage switch gear of this switch fracture texture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697379.1U CN204303664U (en) | 2014-11-20 | 2014-11-20 | A kind of switch fracture texture and there is the high-voltage switch gear of this switch fracture texture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204303664U true CN204303664U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420697379.1U Expired - Fee Related CN204303664U (en) | 2014-11-20 | 2014-11-20 | A kind of switch fracture texture and there is the high-voltage switch gear of this switch fracture texture |
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| Country | Link |
|---|---|
| CN (1) | CN204303664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485254A (en) * | 2014-11-20 | 2015-04-01 | 平高集团有限公司 | Switched fracture structure and high-voltage switch comprising same |
-
2014
- 2014-11-20 CN CN201420697379.1U patent/CN204303664U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485254A (en) * | 2014-11-20 | 2015-04-01 | 平高集团有限公司 | Switched fracture structure and high-voltage switch comprising same |
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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: 20150429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |