CN202549769U - Drop-out fuse - Google Patents
Drop-out fuse Download PDFInfo
- Publication number
- CN202549769U CN202549769U CN2012201173536U CN201220117353U CN202549769U CN 202549769 U CN202549769 U CN 202549769U CN 2012201173536 U CN2012201173536 U CN 2012201173536U CN 201220117353 U CN201220117353 U CN 201220117353U CN 202549769 U CN202549769 U CN 202549769U
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- CN
- China
- Prior art keywords
- fuse
- conductive plate
- fuse switch
- contact
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 9
- 239000010974 bronze Substances 0.000 claims abstract description 9
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 8
- 229920005372 Plexiglas® Polymers 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 229910052790 beryllium Inorganic materials 0.000 abstract 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 abstract 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000000459 calcaneus Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Fuses (AREA)
Abstract
The utility model discloses a drop-out fuse which comprises a fuse tube component and a conductive plate electrically connected with the fuse tube component. The end of an upper moving contact of the fuse tube component is provided with a spherical surface of a contact nut, and correspondingly, the conductive plate is provided with a spherical pit surface matched with the spherical surface. The middle of the upper moving contact of the fuse tube component is provided with a conical surface contacted with the spherical surface, and conductive rods made of beryllium bronze fixedly surround the conical surface, and an insulating tube of the fuse tube component is coated by silicon rubber. The drop-out fuse is widely applicable to power systems with voltage classes of 10KV, 35KV, 66KV and the like, and has the advantages of high flux and wind and dirt resistance, quickness in drop when overloaded, stability and reliability in operation, long service life, reduction of maintenance cost and the like.
Description
Technical field
The utility model relates to power domain, in particular, relates to a kind of fuse switch.
Background technology
Fuse switch is contained on the main line of distribution transformer high-pressure side or distribution, is used for the place that protective value is had relatively high expectations, and it can be used with isolating switch, replaces automatic air-break switch; Can also be used with on-load switch, replace the circuit breaker of expensive.Also have functions such as short-circuit protection, overload protection and buffer circuit simultaneously.Problems such as fuse switch is applicable to that generally frequency is that 50HZ, rated voltage are in 35KV and the following electric power system, and existing fuse switch exists that through-current capacity is little, wind loading rating is poor, conveyance capacity is poor, can not fall rapidly during overload.
The utility model content
The utility model technical problem to be solved provides that a kind of through-current capacity is big, can fall rapidly during overload, conveyance capacity is strong, the dirty ability of resistant is strong, wind loading rating strong, the fuse switch of long service life.
The purpose of the utility model realizes through following technical scheme:
A kind of fuse switch; Comprise the cartridge fuse assembly, with the conductive plate that said cartridge fuse electrical component is connected, the last moving contact end of said cartridge fuse assembly is provided with the sphere of contact nut; Corresponding, said conductive plate is provided with the ball-and-socket face that matches with said sphere.The sphere of said conductive plate and contact nut all adopts by silver-colored treatment process.
Preferably, the opposing another side of one side that is connected with the cartridge fuse assembly of said conductive plate is provided with spring.Spring not only can make conductive plate and contact nut closely cooperate but also fall fast can impel fuse failure the time.
Preferably, said fuse switch also comprises rain cover, and a side of said spring is fixed on the inboard of rain cover, and opposite side props up said conductive plate.
Preferably, the middle part of the last moving contact of said cartridge fuse assembly is provided with the taper seat that connects with said sphere, is fixed with the contact rod that the beryllium-bronze rod is made around said taper seat.Contact rod is embraced on the taper seat of last moving contact, and material adopts the beryllium-bronze rod of good springiness to manufacture, and both can increase through-current capacity, can hold moving contact tightly again, when the fuse overcurrent fuses, can promote to fall function again.
Preferably, said fuse switch also comprises supporting bracket, and said contact rod and conductive plate are fixed on the said supporting bracket.Supporting bracket both can play being connected and supporting role of connecting plate and upper static contact, can play the position-limiting action of moving contact again.
Preferably, said fuse switch also comprises rain cover, and a side of said spring is fixed on the inboard of rain cover, and opposite side props up said conductive plate; One end of said rain cover, contact rod and conductive plate is fixedly connected, and finally is fixed on the said supporting bracket.Rain cover, contact rod and conductive plate one end are fixedly connected, and guarantee that moving contact can reliablely and stablely be located on the cartridge fuse assembly.
Preferably, said sphere is fixed on said going up on the moving contact through the contact nut, and said contact nut surface is adopted by silver and handled, and the contact nut adopts by silver-colored treatment technology and forms silver layer on contact nut surface, has improved through-flow conductive capability.Through test, the useful life that can improve 3 times of products.
Preferably; Said fuse switch also comprises insulated tube; The insulating material that said insulated tube adopts the blow-out of plexiglas fiber to spray, insulated tube has strengthened stain resistance, the ageing resistance of cartridge fuse assembly, has strengthened insulating reliability; And under the low temperature sleety weather, have low temperature resistant, high insulating property.
Preferably, said insulated tube is surrounded by silicon rubber outward, has further strengthened stain resistance, the ageing resistance of cartridge fuse assembly, has strengthened insulating reliability, and under the low temperature sleety weather, have low temperature resistant, high insulating property.
The last moving contact end of the fuse switch of the utility model is provided with the sphere of contact nut, and sphere combines with the ball-and-socket face of conductive plate, and the ball-and-socket face can be held moving contact tightly on the one hand; Wind loading rating is strong, and conductive contact surfaces is long-pending big, has increased through-current capacity; What said conductive plate adopted is the beryllium-bronze material, has the blow-out characteristic, and adopts by silver process; The energising ability is stronger, can further strengthen through-current capacity; When the fuse overcurrent fused, the ball-and-socket face can promote that again cartridge fuse falls on the other hand, and the said moving contact cone match that goes up that also has that is mated has the excellent contact rod of making of beryllium-bronze.Contact rod is embraced on the taper seat of last moving contact, has improved the stability and the reliability of structure of work.The utility model can be in the electric power system of electric pressures such as 10KV, 35KV, 66KV, has that through-current capacity is big, wind loading rating is strong, the dirty ability of anti-soil strong, falls rapidly during overload, characteristics such as working stability is reliable, long service life, reduction maintenance cost.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the local enlarged diagram of the utility model;
Fig. 3 is the utility model cartridge fuse assembly sketch map;
Fig. 4 is the partial schematic diagram that Fig. 2 removes the cartridge fuse assembly;
Fig. 5 is the side schematic view of the utility model;
Wherein: 1, insulator assembly; 2, connecting plate; 3, supporting bracket; 4, contact rod; 5, fixed head; 6, conductive plate; 7, stay pipe; 8, limiting plate; 9, spring; 10, rain cover; 11, contact nut; 12, go up moving contact; 13, cartridge fuse assembly; 131, insulated tube; 132, rubber tube; 133, fuse component; 14, following fixed contact assembly.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the utility model is described further.
Shown in Fig. 1～5; A kind of fuse switch; Comprise insulator assembly 1 and cartridge fuse assembly 13; The upper static contact assembly 2～10 and the following fixed contact assembly 14 of fuse switch is installed in the two ends up and down of insulator assembly 1 respectively, and is connected on the last moving contact 12 of cartridge fuse assembly 13 through connecting plate 2.
As shown in Figure 2, fuse switch comprises the conductive plate 6 that is connected with said cartridge fuse assembly 13 conductions, and last moving contact 12 ends of cartridge fuse assembly 13 are provided with the sphere of contact nut 11; Corresponding, said conductive plate 6 is provided with the ball-and-socket face that matches with said sphere.Said sphere can be fixed on said going up on the moving contact 12 through contact nut 11, ease of assembly dismounting like this, and further, adopt by silver-colored process etc. techniques on contact nut 11 surfaces, forms silver layer on contact nut 11 surfaces, to have improved through-flow conductive capability.Said ball-and-socket face can be held moving contact tightly, and wind loading rating is strong, and electrical-contact area is big, has increased through-current capacity, and what said conductive plate 6 adopted is the beryllium-bronze material, has the blow-out characteristic, adds by silver process again, and the energising ability is stronger, can further strengthen through-current capacity; On the other hand when the fuse overcurrent fuses; The ball-and-socket face can promote that again cartridge fuse assembly 13 falls; The present technique scheme has that through-current capacity is big, wind loading rating is strong, fall rapidly during overload, characteristics such as working stability is reliable, long service life, reduction maintenance cost in the electric power system of electric pressures such as 10KV, 35KV, 66KV.
More tight in order to let conductive plate 6 cooperate with last moving contact 12, and fall ability fast when promoting fuse failure, conductive plate 6 is provided with spring 9 with the opposing another side of the one side that cartridge fuse assembly 13 is connected.One side of spring 9 is fixed on the inboard of rain cover 10, and opposite side props up conductive plate 6.
The middle part of the last moving contact 12 of cartridge fuse assembly 13 is provided with the taper seat that connects with said sphere, is combined with the contact rod 4 that the beryllium-bronze rod is made around said taper seat.4 armfuls of contact rods are on the taper seat of last moving contact 12, and material adopts the beryllium-bronze rod to manufacture, and both can increase through-current capacity, can hold moving contact tightly again, when the fuse overcurrent fuses, can promote to fall function again.Further, contact rod 4 can the calcaneus branches stay tube 7 be fixed through screw with limiting plate 8, with fixing effective scope of activities of contact rod 4, and conveniently assemble and disassemble.
Said fuse switch also comprises supporting bracket 3, and an end of above-mentioned rain cover 10, contact rod 4 and conductive plate 6 is fixedly connected, and finally is fixed on the said supporting bracket 3, to guarantee that moving contact 12 can reliablely and stablely be located on the cartridge fuse assembly 13.One end of supporting bracket 3 is fixed on the connecting plate 2, has so just realized from connecting plate 2 to cartridge fuse the connection the moving contact 12 on 13.Supporting bracket 3 both can play being connected and supporting role of connecting plate 2 and upper static contact (conductive plate 6), can play the position-limiting action to moving contact again.
As shown in Figure 3; Adopt the insulated tube 131 of plexiglas fiber blow-out injection and the fuse component 133 that silicon rubber 132 wraps cartridge fuse assembly 13 inside in the said cartridge fuse assembly 13; Stain resistance, the ageing resistance of cartridge fuse assembly 13 can have been strengthened; Strengthened insulating reliability, and under the low temperature sleety weather, have low temperature resistant, high insulating property.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection range of the utility model.
Claims (10)
1. fuse switch; Comprise the cartridge fuse assembly; It is characterized in that said fuse switch also comprises the conductive plate that is connected with said cartridge fuse electrical component, the last moving contact end of said cartridge fuse assembly is provided with the sphere of contact nut; Corresponding, said conductive plate is provided with the ball-and-socket face that matches with said sphere.
2. a kind of fuse switch as claimed in claim 1 is characterized in that, the sphere of said conductive plate and contact nut adopts by silver-colored treatment process.
3. a kind of fuse switch as claimed in claim 1 is characterized in that, said conductive plate is provided with spring with the opposing another side of the one side that the cartridge fuse assembly is connected.
4. a kind of fuse switch as claimed in claim 3 is characterized in that said fuse switch also comprises rain cover, and a side of said spring is fixed on the inboard of rain cover, and opposite side props up said conductive plate.
5. a kind of fuse switch as claimed in claim 1 is characterized in that, the middle part of the last moving contact of said cartridge fuse assembly is provided with the taper seat that connects with said sphere, is fixed with the contact rod that the beryllium-bronze rod is made around said taper seat.
6. a kind of fuse switch as claimed in claim 5 is characterized in that said fuse switch also comprises supporting bracket, and said contact rod and conductive plate are fixed on the said supporting bracket.
7. a kind of fuse switch as claimed in claim 6 is characterized in that said fuse switch also comprises rain cover, and a side of said spring is fixed on the inboard of rain cover, and opposite side props up said conductive plate; One end of said rain cover, contact rod and conductive plate is fixedly connected, and finally is fixed on the said supporting bracket.
8. a kind of fuse switch as claimed in claim 1 is characterized in that, said sphere is fixed on said going up on the moving contact through the contact nut, and said contact nut adopts the surface by silver-colored treatment process.
9. a kind of fuse switch as claimed in claim 1 is characterized in that said fuse switch also comprises insulated tube, the insulating material that said insulated tube adopts the blow-out of plexiglas fiber to spray.
10. a kind of fuse switch as claimed in claim 9 is characterized in that said insulated tube is surrounded by silicon rubber outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201173536U CN202549769U (en) | 2012-03-27 | 2012-03-27 | Drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201173536U CN202549769U (en) | 2012-03-27 | 2012-03-27 | Drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549769U true CN202549769U (en) | 2012-11-21 |
Family
ID=47170357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201173536U Expired - Lifetime CN202549769U (en) | 2012-03-27 | 2012-03-27 | Drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549769U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367071A (en) * | 2012-03-27 | 2013-10-23 | 吉林市能兴电力设备有限公司 | Falling-type fuse |
| CN104934274A (en) * | 2014-03-20 | 2015-09-23 | 通贝国际有限公司 | Fuse insulating support bracket with pre-molded shed |
| CN105845526A (en) * | 2016-04-26 | 2016-08-10 | 宁波鹿鼎电子科技有限公司 | Anti-wind dropping fuser |
| CN105845527A (en) * | 2016-04-26 | 2016-08-10 | 宁波鹿鼎电子科技有限公司 | Double-column drop-type fuser |
-
2012
- 2012-03-27 CN CN2012201173536U patent/CN202549769U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367071A (en) * | 2012-03-27 | 2013-10-23 | 吉林市能兴电力设备有限公司 | Falling-type fuse |
| CN103367071B (en) * | 2012-03-27 | 2015-12-16 | 吉林市能兴电力设备有限公司 | A kind of fuse switch |
| CN104934274A (en) * | 2014-03-20 | 2015-09-23 | 通贝国际有限公司 | Fuse insulating support bracket with pre-molded shed |
| CN104934274B (en) * | 2014-03-20 | 2018-04-27 | 通贝国际有限公司 | Fuse insulation supporter frame with pre-molded full skirt |
| US10043630B2 (en) | 2014-03-20 | 2018-08-07 | Thomas & Betts International Llc | Fuse insulating support bracket with pre-molded shed |
| CN105845526A (en) * | 2016-04-26 | 2016-08-10 | 宁波鹿鼎电子科技有限公司 | Anti-wind dropping fuser |
| CN105845527A (en) * | 2016-04-26 | 2016-08-10 | 宁波鹿鼎电子科技有限公司 | Double-column drop-type fuser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent of Jilin Nengxing Power Equipment Co.,Ltd. The person in charge Document name: Notice of expiration and termination of patent right |
|
| DD01 | Delivery of document by public notice |