CN206388642U - Include the generator breaker by heating chamber insulator integrally formed PTFE - Google Patents
Include the generator breaker by heating chamber insulator integrally formed PTFE Download PDFInfo
- Publication number
- CN206388642U CN206388642U CN201621198461.5U CN201621198461U CN206388642U CN 206388642 U CN206388642 U CN 206388642U CN 201621198461 U CN201621198461 U CN 201621198461U CN 206388642 U CN206388642 U CN 206388642U
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- Prior art keywords
- heating chamber
- insulator
- chamber insulator
- ptfe
- generator breaker
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 76
- 239000012212 insulator Substances 0.000 title claims abstract description 68
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 42
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 42
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 4
- 229910052593 corundum Inorganic materials 0.000 abstract description 4
- 229910052961 molybdenite Inorganic materials 0.000 abstract description 4
- 229910052982 molybdenum disulfide Inorganic materials 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
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- Resistance Heating (AREA)
Abstract
The utility model is related to a kind of generator breaker included by heating chamber insulator integrally formed PTFE, and it includes movable contact and fixed contact；It is provided between movable contact and fixed contact by heating chamber insulator integrally formed PTFE；Movable contact, fixed contact and heating chamber insulator surround heating chamber.The utility model is by the way that high withstand voltage and good Thermal protection are attached to by pure polytetrafluoroethylene (PTFE) or with a small amount of ceramic powders such as Al2O3、MoS2Deng the integrally formed heating chamber insulator of polytetrafluoroethylene (PTFE) simplify the design of insulator.Compared with conventional art, the utility model can be prepared with simple, efficient, convenient, low cost and the short mode of technological process in the case where meeting design requirement and design simple heating chamber insulator suitable in high volume industrial.
Description
Technical field
The utility model is related to switching technique field, more particularly to a kind of include is insulated by heating chamber integrally formed PTFE
The generator breaker of body.
Background technology
Patent CN 102306591 illustrates a kind of composite insulation cylinder, and it is typically by fibre-reinforced vacuum-impregnated
Outer barrel and it is made up of the inner cylinder that polytetrafluoroethylene (PTFE) is made.The main task of outer barrel is to be born during short circuit current flow is switched in cylinder
Very high pressure.The main task of inner cylinder be protect outer barrel not by during switching as the very hot gas caused by electric arc
Body is burnt out.
Above-mentioned compound type insulating barrel structure is relative complex, and manufacture is cumbersome and cost is higher.Especially in inner cylinder and outside
Engagement between cylinder is difficult to.Good engagement is needed to ensure the full functionality of the insulator.Manufacture is as described above
Insulator need a large amount of professional knowledges and therefore only the supplier of limited quantity can manufacture.Therefore, above-mentioned insulating cylinder
It is difficult to high-volume, produces at low cost, and therefore there is obvious defect.
Utility model content
The utility model purpose is the design for simplifying insulating cylinder.In breaker, heating chamber insulator mainly has three
Individual function：For the space between arcing and nominal contact to be separated；Eliminate the gas pressure of electric arc enough for being formed；Working as
Its in preceding design should be insulation, because itself and the contact with different potentials.
To achieve these goals, high withstand voltage and good Thermal protection are attached to by pure polytetrafluoroethylene (PTFE) or with a small amount of
Ceramic powders such as Al2O3、MoS2Deng the single cylinder that is made of polytetrafluoroethylene (PTFE) in.The insulating cylinder is preferably full PTFE heating chambers
Insulator.The biggest advantage is that simple in construction, it can be produced by global a large amount of suppliers.
The utility model is related to a kind of generator breaker included by heating chamber insulator integrally formed PTFE, and it is wrapped
Movable contact and fixed contact are included, fixed contact and movable contact by the integrally formed heating chamber insulators of PTFE by being connected to
Together, formed between fracture the heat that electric arc in a heating chamber, interrupting process produces make the gas pressure in heating chamber it is quick on
Rise, gases at high pressure reach the effect of cooling electric arc along opening to both sides flow at high speed.Breaker is provided with decompressor, when adding
When hot room pressure exceedes safety value, pressure-reducing valve is opened, and releases portion gas, reduction heating room pressure to design load, it is ensured that
Room pressure is heated in the whole interrupting process of switch stable below design load.
According to generator breaker of the present utility model, it includes movable contact and fixed contact, in movable contact and admittedly
Determine to be provided with by heating chamber insulator integrally formed PTFE, movable contact, fixed contact and heating chamber insulator between contact
Surround heating chamber.
According to an embodiment of the present utility model, pacify respectively between heating chamber insulator and movable contact and fixed contact
Equipped with sealing ring.
According to an embodiment of the present utility model, the outer surface of heating chamber insulator is provided with convex shoulder.
According to an embodiment of the present utility model, the thickness of the convex shoulder is between 5mm and 15mm.
According to an embodiment of the present utility model, the convex shoulder is provided with fillet.
According to an embodiment of the present utility model, the outline edge of heating chamber insulator is provided with chamfering.
According to an embodiment of the present utility model, the outside diameter d a of heating chamber insulator is between 335mm and 370mm.It is excellent
Selection of land, the outside diameter d a of heating chamber insulator is smaller than 335mm.
According to an embodiment of the present utility model, the internal diameter di of heating chamber insulator is between 280mm and 290mm.
According to an embodiment of the present utility model, pressure-reducing valve is installed at fixed contact.
According to an embodiment of the present utility model, it is characterised in that heating chamber insulator is by pure polytetrafluoroethylene (PTFE) or by band
There is a small amount of ceramic powders such as Al2O3、MoS2Deng polytetrafluoroethylene (PTFE) be made.
According to an embodiment of the present utility model, according to the heating chamber insulator integrally formed by PTFE of the present utility model
In the 100bar for being persistently heated to be subjected in short-term existing when generator breaker is turned off in the case of 90 DEG C -120 DEG C
Or the pressure of even more high.The pressure is not to exist for a long time, but only during operation is turned off in the shorter time
In the presence of.
Compared with conventional art, the utility model being capable of and technique stream relatively low with relatively easy, high efficiency, convenient, cost
The mode that journey shortens is large batch of suitable for industrial heating chamber insulator to prepare, using the teaching of the invention it is possible to provide with irreplaceable
The product of huge advantage, such as being simple to manufacture, service life length, reliability it is high, it is with low cost advantage, these are prior arts
Heating chamber insulator realize.
Brief description of the drawings
By reading this specification in conjunction with the following drawings, feature of the present utility model, objects and advantages will become more to show
And be clear to, in the accompanying drawings：
Fig. 1 is shown according to the heating of the present utility model included by heating chamber insulator integrally formed PTFE with cut-away view
The structure chart of room；
Fig. 2 illustrates the implementation according to the heating chamber insulator integrally formed by PTFE of the present utility model with section
Example；
Fig. 3 illustrates another implementation according to the heating chamber insulator integrally formed by PTFE of the present utility model with section
Example.
List of numerals：
1 movable contact
2 heating chamber insulators
3 fixed contacts
4 sealing rings
5 pressure-reducing valves.
Embodiment
In description below to the drawings and specific embodiments, one or more embodiments of the present utility model will be illustrated
Details.From these description, accompanying drawing and claims, other features, objects and advantages of the present utility model can be understood.
Some specific embodiments of the present utility model will be described in more detail below.
Breaker HEC-170 nominal currents are 28kA and voltage is 30kV, AC50/60Hz.The utility model is related to one
Plant comprising the generator breaker by heating chamber insulator integrally formed PTFE, should be insulated by heating chamber integrally formed PTFE
Body 2 is by pure polytetrafluoroethylene (PTFE) or with a small amount of ceramic powders such as Al2O3、MoS2Deng polytetrafluoroethylene (PTFE) be made.
Fig. 1 shows to be included by the structure of the heating chamber of heating chamber insulator integrally formed PTFE according to of the present utility model
Figure.By taking the heating chamber shown in Fig. 1 as an example, the work(according to the heating chamber insulator integrally formed by PTFE of the present utility model is introduced
Energy.Now the breaker is during fault current is cut-off.Fixation is respectively arranged with movable contact 1 and fixed contact 3
Part, by a movable part that can be contacted with the two fixtures simultaneously, can connect the rear side of heating chamber and front side.The movable part
It can move along a straight line to the left and to the right.Wherein, when movable part moves to it to the left and separated with fixture, for switch separating brake action；
When moving right it and being contacted with fixture, for switch feed motion.Added according to of the present utility model by PTFE is integrally formed
Hot cell insulator 2 is just arranged between the fracture of the fixed contact 3 of heating chamber and movable contact 1, by the side of insulator 2 with it is solid
Determine two sealing rings 4 are installed between contact and movable contact, so that between fixed contact 3, movable contact 1 and insulator 2
Set up a heating chamber；Fixed contact 3 and movable contact 1 are provided with slot, the two ends of insulator 2 insertion fixed contact 3 and activity
It is fixed in the slot of contact 1.The pressure relief opening of the heating chamber is communicated with fixed contact 3, is installed at fixed contact 3
There is the pressure-reducing valve 5 for blocking the pressure relief opening.Pressure-reducing valve 5 is the decompression protection device installed for protection heating chamber.Pressure-reducing valve 5 is preferred
Ground is spring pressure-reducing valve.Pressure relief opening is opened in the movable part direction of motion.Preferably, heating chamber insulator 2 is also associated with absolutely
Edge part, the insulating part is fixed on movable contact 1 and fixed contact 3.
The embodiment according to the heating chamber insulator integrally formed by PTFE of the present utility model is shown respectively in Fig. 2 and 3.
Fig. 2 shows the first embodiment according to heating chamber insulator of the present utility model.In this embodiment, heating chamber
The outside diameter d a of insulator 2 is 365mm；The internal diameter di of heating chamber insulator 2 is 290mm；The clamping diameter dc of heating chamber insulator 2
For 335mm.The outer surface of heating chamber insulator is provided with convex shoulder, and is provided with fillet to avoid stress collection at convex shoulder
In.Radius of corner R1 at convex shoulder can be between 10mm and 20mm, it is therefore preferable to 15mm.In the interior table of heating chamber insulator 2
Fillet is also equipped with face, its radius R2 can be between 15mm and 25mm, it is therefore preferable to 20mm.In heating chamber insulator 2
Outline edge is provided with chamfering.Chamfering α at the clamping face of heating chamber insulator 2 can be between 10o and 30o, excellent
Selection of land is α=20o；And the undercut ss at the inner surface of heating chamber insulator 2 can be between 5o and 15o, it is therefore preferable to β=10
º.Result of the test shows, is met according to heating chamber insulator of the present utility model for the strong of service life load as defined in meeting
Degree is required and radial displacement is in the limit allowed.Each size of heating chamber insulator can also take not with needs as requested
The other values referred to.
Fig. 3 shows the second embodiment according to heating chamber insulator of the present utility model.In figure 3, heating chamber insulate
The outside diameter d a of body 2 is 345mm, so that the thickness in the convex shoulder of the outer surface of insulator from the 15mm in Fig. 2 is reduced to 5mm,
The size of the insulator can be consistent with the embodiment in Fig. 2 in other side.The embodiment is equally met on intensity and radial direction
The requirement of displacement.Moreover, compared with the first embodiment in Fig. 2, its material saves about 14%.
Shown according to experiment of the present utility model and test, it is preferable that the outside diameter d a of heating chamber insulator 2 is in
Between 335mm and 370mm.Preferably, the outside diameter d a of heating chamber insulator 2 is smaller than 335mm.Preferably, heating chamber insulator 2
Internal diameter di be between 280mm and 290mm.Preferably, the thickness of convex shoulder is between 5mm and 15mm.It is further preferred that convex
The thickness of shoulder is smaller than 5mm further to save PTFE material.
By to the structural analysis according to heating chamber insulator of the present utility model, according to of the present utility model by PTFE
Integrally formed heating chamber insulator can be subjected in generator breaker in the case where being persistently heated to 90 DEG C -120 DEG C
The 100bar or the pressure of even more high existed in short-term during shut-off.
Above in association with specific reality of the accompanying drawing for generator breaker of the present utility model and heating chamber insulator therein
Example is applied to be described in detail.It will be understood by those skilled in the art, however, that described above be merely illustrative and describe
Some embodiments, to the scope of scope of the present utility model, especially claim, and without any limitation.
Claims (10)
1. a kind of generator breaker, it includes movable contact (1) and fixed contact (3), in movable contact (1) and fixed contact
(3) it is provided between by heating chamber insulator (2) integrally formed PTFE, the movable contact (1), the fixed contact (3)
Heating chamber is surrounded with the heating chamber insulator (2).
2. generator breaker according to claim 1, it is characterised in that the heating chamber insulator (2) with it is described
Sealing ring (4) is separately installed between movable contact (1) and the fixed contact (3).
3. generator breaker according to claim 1, it is characterised in that in the appearance of the heating chamber insulator (2)
Convex shoulder is provided with face.
4. generator breaker according to claim 3, it is characterised in that the thickness of the convex shoulder 5mm and 15mm it
Between.
5. generator breaker according to claim 3, it is characterised in that the convex shoulder is provided with fillet.
6. generator breaker according to claim 1, it is characterised in that in the foreign steamer of the heating chamber insulator (2)
Wide edge is provided with chamfering.
7. generator breaker according to claim 1, it is characterised in that the outside diameter d a of the heating chamber insulator (2)
Between 335mm and 370mm；The internal diameter di of the heating chamber insulator (2) is between 280mm and 290mm.
8. generator breaker according to claim 1, it is characterised in that be provided with and subtract at the fixed contact (3) place
Pressure valve (5).
9. generator breaker according to any one of claim 1 to 8, it is characterised in that the heating chamber insulator
(2) it is made up of polytetrafluoroethylene (PTFE).
10. generator breaker according to any one of claim 1 to 8, it is characterised in that the heating chamber insulator
(2) persistently it is being heated to be subjected to what is when the generator breaker is turned off in short-term existed in the case of 90 DEG C -120 DEG C
100bar or even more high pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621198461.5U CN206388642U (en) | 2016-11-07 | 2016-11-07 | Include the generator breaker by heating chamber insulator integrally formed PTFE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621198461.5U CN206388642U (en) | 2016-11-07 | 2016-11-07 | Include the generator breaker by heating chamber insulator integrally formed PTFE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206388642U true CN206388642U (en) | 2017-08-08 |
Family
ID=59487518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621198461.5U Active CN206388642U (en) | 2016-11-07 | 2016-11-07 | Include the generator breaker by heating chamber insulator integrally formed PTFE |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206388642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824664A (en) * | 2022-02-25 | 2022-07-29 | 中国电子科技集团公司第十八研究所 | Thermal buffer layer base material and application method thereof in thermal battery |
-
2016
- 2016-11-07 CN CN201621198461.5U patent/CN206388642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824664A (en) * | 2022-02-25 | 2022-07-29 | 中国电子科技集团公司第十八研究所 | Thermal buffer layer base material and application method thereof in thermal battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210615 Address after: Baden, Switzerland Patentee after: ABB grid Switzerland AG Address before: Baden, Switzerland Patentee before: ABB Switzerland Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Swiss Baden Patentee after: Hitachi energy Switzerland AG Address before: Swiss Baden Patentee before: ABB grid Switzerland AG |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240116 Address after: Zurich, SUI Patentee after: Hitachi Energy Co.,Ltd. Address before: Swiss Baden Patentee before: Hitachi energy Switzerland AG |