CN205564633U - Miniaturized vacuum interrupter - Google Patents
Miniaturized vacuum interrupter Download PDFInfo
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- CN205564633U CN205564633U CN201620348383.6U CN201620348383U CN205564633U CN 205564633 U CN205564633 U CN 205564633U CN 201620348383 U CN201620348383 U CN 201620348383U CN 205564633 U CN205564633 U CN 205564633U
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- chutes
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Abstract
The utility model provides a miniaturized vacuum interrupter, including the ceramic -insulated shell, quiet end subassembly moves the end subassembly, a shielding section of thick bamboo, and the go -between, about the ceramic -insulated shell both ends respectively through the go -between with move the apron and link to each other with quiet apron, the bellows again with move apron, the blanking disc is continuous, moving contact and static contact adopt the cuCr30 material contact that arc melting technology manufactured, the diameter of moving contact and static contact is 45mm, not only overall dimension is little and low cost for this miniaturized vacuum interrupter, and the superior performance can be ensured to guarantee to use under the unchangeable prerequisite of vacuum interrupter integral erection size.
Description
Technical field
The present invention relates to electrical equipment, particularly relate to a kind of miniaturized vacuum arc-chutes.
Background technology
Vacuum interrupter belongs to passive electrical vacuum device, supporting with switching mechanism and form vacuum switch electrical equipment.It is with the contact being sealed in high vacuum for a pair and other part, the insulation excellent by high vacuum and blow-out performance, it is achieved close circuit and disjunction, can rapidly and suppress the vacuum device of electric current after cutting off the electricity supply.To the acceptance of electric energy, carry, distribute, control to shield.Being widely used in industrial and mining enterprises, urban and rural power grids, in the sending out of the field such as electric railway, electrical power trans mission/distribution system.Having had qualitative leap, market share to improve year by year in China's vacuum interrupter technology through the development of more than 30 years, the design theory of product, manufacturing process, quality level, market producer gets more and more, and market competition is the fiercest.Particularly since entry to WTO, domestic vacuum switch manufacturing industry is threatened by from external individual proprietorship, joint venture so that competition grows in intensity.
Along with the overall development of domestic industry technology, the designing and manufacturing level of switch improves day by day, such as the use of compound inslation new material so that switching mechanism is progressively to miniaturization.User needs appearance and size little, and floor space is little, with low cost, the product of superior performance.Accordingly, market is more and more urgent to the demand of advanced miniaturized vacuum arc-chutes.
Utility model content
For existing situation, the present invention seeks to ensureing on the premise of vacuum interrupter integral installation size constancy, it is provided that a kind of miniaturized vacuum arc-chutes, its not only appearance and size little and with low cost, superior performance.
For realizing goal of the invention, the technical scheme that the utility model is taked is:
nullMiniaturized vacuum arc-chutes，Including ceramic insulation shell，Quiet end assembly，Moved end assembly，Shielding cylinder，Connect ring，Described moved end assembly includes moving conductive rod、Blanking disc、Moving contact、Bellows、Dynamic cover plate、Location dish and fairlead，Quiet end assembly includes static conductive rod、Conducting block、Quiet cover plate and static contact，The described upper and lower two ends of ceramic insulation shell are connected with quiet cover plate with dynamic cover plate by connection ring respectively，Bellows again with dynamic cover plate、Blanking disc is connected，Described ceramic insulation shell、Dynamic cover plate、Quiet cover plate、Bellows forms airtight insulation system，Moving conductive rod、Moving contact、Static conductive rod、Static contact and conducting block form conducting system，Shielding cylinder forms shielding harness，Described moving contact and static contact use the CuCr30 material contact that electric arc melting technique is manufactured，Silicon rubber at the two ends of insulation crust cladding high insulation resistance.
The present invention uses the CuCr30 material contact that electric arc melting technique is manufactured, may insure that this contact performance has high fusion welding resisting ability, high dieletric strength, the performance such as air content is low, contact resistance is little, electroerosion rate is low, in prior art, general contact material is CuCr25, its resistivity of this material increases successively, and current breaking capacity increases the most successively.Commonly use in traditional design is CuCr25 material, its method of manufacturing technology is powder sintering and infiltration method, limited by process, the defects such as its product easily produces that hole is many, relative density is low, closed pore and segregation, these defective workmanships will affect classical insulation and the reliability of vacuum interrupter, in the past in contact designs, the deficiency of industry is made up by strengthening contact diameter, thus cause the volume of vacuum interrupter to become big, use the CuCr30 contact that this electric arc melting technique manufactures, it is entirely avoided the defect of traditional handicraft.Increasing the content of contact anti-melting welding element in the case of not affecting resistance, by changing contact material component ratio, fully improve vacuum interrupter and cut-off the fusion welding resisting ability of short circuit current, its performance is better than the CuCr25 contact of same diameter.Therefore, contact diameter suitably can reduce on the basis of original, thus can realize vacuum interrupter integral diameter and reduce.
As preferably, the described end connecting ring is with arc transition, and increases end radius of curvature, and the end of described shielding cylinder is with arc transition, and increases end radius of curvature.
As preferably, the diameter of described moving contact and static contact is 45mm
As preferably, the radius of curvature of the circular arc of the described end connecting ring is 2mm.
As preferably, the radius of curvature of the circular arc of the described end connecting ring is 2mm
As preferably, described connection ring material is copper.
As preferably, described ceramic package is umbrella skirt construction, and its creep distance is 186.3mm.
As preferably, described miniaturized vacuum arc-chutes rated operational voltage is 12kV.
The miniaturized vacuum arc-chutes of the present invention use the CuCr30 contact of electric arc melting technique manufacture to substitute traditional design powder sintering and the CuCr25 contact of infiltration method technique manufacture, increase the content of contact anti-melting welding element, fully improve vacuum interrupter and cut-off the fusion welding resisting ability of short circuit current；On this basis contact diameter is suitably reduced；Pass through CAD, optimize the internal each design of part of arc-chutes and the layout of position, through the calculating to internal electric intensity, the each element size of reasonable Arrangement and position, and the shape correction and location arrangements to each element is adjusted, the end connecting ring and shielding cylinder is designed as with arc transition simultaneously, and increase end radius of curvature, avoid producing internal field to concentrate, internal electric intensity is made to be uniformly distributed, the requirement of insulation in meeting, thus improve the uniformity coefficient of internal electric intensity distribution, the dielectric level improved, thus improve the connecting-disconnecting function of vacuum interrupter further；Be optimized design by the full skirt shape and structure of ceramic package outer surface simultaneously, with increase ceramic package along face creep age distance, improve external insulating strength；In the position that insulating capacity is relatively weak, i.e. ceramic package two ends increase silicon rubber cladding, by this measure, it is possible to avoid occurring high pressure flashover or creepage outside arc-chutes, make dielectric level reach to use requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of connection ring of the present utility model；
Wherein, ring is 1. connected；2. draw-in groove；3. circular arc；
Fig. 2 is the structural representation of shielding cylinder of the present utility model；
Wherein, 1. shielding cylinder；2. circular arc；
Fig. 3 is the structural representation of miniaturized vacuum arc-chutes of the present utility model；
Wherein, 1. moving conductive rod；2. fairlead；3. location dish；4. bellows；5. move cover plate；6. connection ring；7. blanking disc；8. shielding cylinder；9. ceramic insulation shell；10. moving contact；11. static contacts；12 static conductive rods；13. connect ring；14 quiet cover plates；15. conducting blocks；
Fig. 4 is the two ends silicon rubber cladding schematic diagram of miniaturized vacuum arc-chutes of the present utility model；
Wherein, 1. silicon rubber.
Detailed description of the invention
With detailed description of the invention, the utility model is further described below in conjunction with the accompanying drawings.
Embodiment 1
Miniaturized vacuum arc-chutes as shown in Figures 1 to 4 include moving conductive rod 1, fairlead 2, location dish 3, bellows 4, dynamic cover plate 5, connect ring 6, blanking disc 7, shielding cylinder 8, ceramic insulation shell 9, moving contact 10, static contact 11, static conductive rod 12, connect ring 13, quiet cover plate 14 and conducting block 15；Moved end assembly includes moving conductive rod 1, blanking disc 7, moving contact 10, bellows 4, dynamic cover plate 5, location dish 3 and fairlead 2, quiet end assembly includes static conductive rod 12, conducting block 15, quiet cover plate 14 and static contact 11, the described upper and lower two ends of ceramic insulation shell are connected with quiet cover plate 14 with dynamic cover plate 5 with 13 by connection ring 6 respectively, bellows 4 again with dynamic cover plate 5, blanking disc 7 is connected, described ceramic insulation shell 9, dynamic cover plate 5, quiet cover plate 14, bellows 4 forms airtight insulation system, moving conductive rod 1, moving contact 10, static conductive rod 12, static contact 11 and conducting block 15 form conducting system, shielding cylinder 8 forms shielding harness, described moving contact and static contact use the CuCr30 material contact that electric arc melting technique is manufactured；At the silicon rubber of the two ends of insulation crust cladding high insulation resistance, relative to air, silicon rubber has much higher electric field breakdown strengths, accordingly, it is capable to be effectively improved the integral insulation level of vacuum interrupter.
The described end connecting ring is designed as with arc transition, and increases end radius of curvature, and the end of described shielding cylinder is designed as with arc transition, and increases end radius of curvature；The diameter of described moving contact and static contact is 45mm；The radius of curvature of the described end fillet structure connecting ring is 2mm；The radius of curvature of the end fillet structure of described shielding cylinder is 1mm；Described connection ring material is copper；Described ceramic package is umbrella skirt construction, and its creep distance is 186.3mm；Described miniaturized vacuum arc-chutes rated operational voltage is 12kV.
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 modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (8)
- null1. miniaturized vacuum arc-chutes，Including ceramic insulation shell，Quiet end assembly，Moved end assembly，Shielding cylinder，Connect ring，Described moved end assembly includes moving conductive rod、Blanking disc、Moving contact、Bellows、Dynamic cover plate、Location dish and fairlead，Quiet end assembly includes static conductive rod、Conducting block、Quiet cover plate and static contact，It is characterized in that the described upper and lower two ends of ceramic insulation shell are connected with quiet cover plate with dynamic cover plate by connection ring respectively，Bellows again with dynamic cover plate、Blanking disc is connected，Described ceramic insulation shell、Dynamic cover plate、Quiet cover plate、Bellows forms airtight insulation system，Moving conductive rod、Moving contact、Static conductive rod、Static contact and conducting block form conducting system，Shielding cylinder forms shielding harness，Described moving contact and static contact use the CuCr30 material contact that electric arc melting technique is manufactured，Silicon rubber at the two ends of insulation crust cladding high insulation resistance.
- Miniaturized vacuum arc-chutes the most according to claim 1, it is characterised in that the diameter of described moving contact and static contact is 45mm.
- Miniaturized vacuum arc-chutes the most according to claim 1, it is characterised in that the described end connecting ring is with arc transition, and increases end radius of curvature, and the end of described shielding cylinder is with arc transition, and increases end radius of curvature.
- Miniaturized vacuum arc-chutes the most according to claim 3, it is characterised in that the radius of curvature of the circular arc of the described end connecting ring is 2mm.
- Miniaturized vacuum arc-chutes the most according to claim 3, it is characterised in that the radius of curvature of the circular arc of the described end connecting ring is 2mm.
- Miniaturized vacuum arc-chutes the most according to claim 1, it is characterised in that described connection ring material is copper.
- Miniaturized vacuum arc-chutes the most according to claim 1, it is characterised in that described ceramic package is umbrella skirt construction, its creep distance is 186.3mm.
- Miniaturized vacuum arc-chutes the most according to claim 1, it is characterised in that the rated operational voltage of described miniaturized vacuum arc-chutes is 12kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348383.6U CN205564633U (en) | 2016-04-22 | 2016-04-22 | Miniaturized vacuum interrupter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348383.6U CN205564633U (en) | 2016-04-22 | 2016-04-22 | Miniaturized vacuum interrupter |
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| CN205564633U true CN205564633U (en) | 2016-09-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065407A (en) * | 2018-10-11 | 2018-12-21 | 国家电网有限公司 | A kind of vortex driving fast breaker |
| CN110690045A (en) * | 2019-10-09 | 2020-01-14 | 周生远 | Oil-free self-healing high-voltage parallel capacitor |
| 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 |
-
2016
- 2016-04-22 CN CN201620348383.6U patent/CN205564633U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065407A (en) * | 2018-10-11 | 2018-12-21 | 国家电网有限公司 | A kind of vortex driving fast breaker |
| CN110690045A (en) * | 2019-10-09 | 2020-01-14 | 周生远 | Oil-free self-healing high-voltage parallel capacitor |
| CN110690045B (en) * | 2019-10-09 | 2021-09-03 | 广西电网有限责任公司玉林供电局 | Oil-free self-healing high-voltage parallel capacitor |
| 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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