CN103367071A - Falling-type fuse - Google Patents
Falling-type fuse Download PDFInfo
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- CN103367071A CN103367071A CN2012100822350A CN201210082235A CN103367071A CN 103367071 A CN103367071 A CN 103367071A CN 2012100822350 A CN2012100822350 A CN 2012100822350A CN 201210082235 A CN201210082235 A CN 201210082235A CN 103367071 A CN103367071 A CN 103367071A
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- fuse
- fuse switch
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- contact
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Abstract
The invention discloses a falling-type fuse which comprises a fuse tube assembly and a conductive plate electrically connected with the fuse tube assembly. The end of an upper moving contact of the fuse tube assembly is provided with a spherical surface of a contact nut. Correspondingly, the conductive plate is provided with a ball socket surface and the ball socket surface is matched with the spherical surface. The middle part of the upper moving contact of the fuse tube assembly is provided with a conical surface which is connected with the spherical surface. A conductive rod made of a beryllium-bronze rod is fixed around the conical surface. An insulating tube of the fuse tube assembly is coated with a silicon rubber. The falling-type fuse can be widely applicable to the power systems with voltage levels of 10KV, 35KV, 66KV, and the like. The falling-type fuse is characterized by large current capacity, high wind resistance, good resistance to uncleanness, quick falling during overload, stable and reliable operation, long service life, low cost of maintenance, and the like.
Description
Technical field
The present invention relates to power domain, in particular, relate to a kind of fuse switch.
Background technology
Fuse switch is contained on the main line of distribution transformer high-pressure side or distribution, and for the protection of the higher place of performance requirement, it can be used with isolating switch, replaces automatic air-break switch; Can also be used with on-load switch, replace the high circuit breaker of price.Also have simultaneously the functions such as short-circuit protection, overload protection and buffer circuit.The problems such as it is that 50HZ, rated voltage are in 35KV and the following electric power system that fuse switch generally is applicable to frequency, 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.
Summary of the invention
Technical problem to be solved by this invention provides that a kind of through-current capacity is large, 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 objective of the invention is to be achieved through the following technical solutions:
A kind of fuse switch, comprise the cartridge fuse assembly, with the conductive plate that described cartridge fuse electrical component is connected, the upper moving contact end of described cartridge fuse assembly is provided with the sphere of contact nut, corresponding, described conductive plate is provided with the ball-and-socket face that matches with described sphere.The sphere of described 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 described 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, described fuse switch also comprises rain cover, and a side of described spring is fixed on the inboard of rain cover, and opposite side props up described conductive plate.
Preferably, the middle part of the upper moving contact of described cartridge fuse assembly is provided with the taper seat that connects with described sphere, is fixed with the contact rod that beryllium bronze bar is made around described taper seat.Contact rod is embraced on the taper seat of upper moving contact, and material adopts the beryllium bronze bar 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 again function.
Preferably, described fuse switch also comprises supporting bracket, and described contact rod and conductive plate are fixed on the described supporting bracket.Supporting bracket both can play being connected and supporting role of connecting plate and upper static contact, can play again the position-limiting action of moving contact.
Preferably, described fuse switch also comprises rain cover, and a side of described spring is fixed on the inboard of rain cover, and opposite side props up described conductive plate; One end of described rain cover, contact rod and conductive plate is fixedly connected with, and finally is fixed on the described supporting bracket.Rain cover, contact rod and conductive plate one end are fixedly connected with, and guarantee that moving contact can reliablely and stablely be located on the cartridge fuse assembly.
Preferably, described sphere is fixed on the described upper moving contact by the contact nut, and described contact nut surface is adopted by silver and processed, and the contact nut adopts by silver-colored treatment technology and forms silver layer on contact nut surface, has improved through-flow conductive capability.After tested, can improve the useful life of 3 times of products.
Preferably, described fuse switch also comprises insulated tube, the insulating material that described insulated tube adopts the blow-out of plexiglas fiber to spray, insulated tube has strengthened stain resistance, the ageing resistance of cartridge fuse assembly, strengthened insulating reliability, and under the low temperature sleety weather, have low temperature resistant, high insulating property.
Preferably, described 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 upper moving contact end of fuse switch of the present invention is provided with the sphere of contact nut, sphere is with the ball-and-socket face combination of conductive plate, the ball-and-socket face can be held moving contact tightly on the one hand, and wind loading rating is strong, and the conductive contact area is large, increased through-current capacity, what described 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, the contact rod that also has described upper moving contact cone match to have beryllium bronze bar to make that is mated.Contact rod is embraced on the taper seat of upper moving contact, has improved stability and the reliability of structure of work.The present invention can be widely used in the electric power system of the electric pressures such as 10KV, 35KV, 66KV, has that through-current capacity is large, wind loading rating is strong, the anti-pollution ability is strong, fall rapidly during overload, the characteristics such as working stability is reliable, long service life, reduction maintenance cost.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the local enlarged diagram of the present invention;
Fig. 3 is cartridge fuse assembly schematic diagram of the present invention;
Fig. 4 is the partial schematic diagram that Fig. 2 removes the cartridge fuse assembly;
Fig. 5 is side schematic view of the present invention;
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, upper moving contact; 13, cartridge fuse assembly; 131, insulated tube; 132, rubber tube; 133, fuse component; 14, lower static contact component.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and preferred embodiment.
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 of fuse switch and lower static contact component 14 are installed in respectively the up and down two ends of insulator assembly 1, and are connected to by connecting plate 2 on the upper moving contact 12 of cartridge fuse assembly 13.
As shown in Figure 2, fuse switch comprises the conductive plate 6 that is connected with described cartridge fuse assembly 13 conductions, and upper moving contact 12 ends of cartridge fuse assembly 13 are provided with the sphere of contact nut 11; Corresponding, described conductive plate 6 is provided with the ball-and-socket face that matches with described sphere.Described sphere can be fixed on the described upper moving contact 12 by contact nut 11, like this ease of assembly dismounting, and further, adopt by technology such as silver processing on contact nut 11 surfaces, forms silver layer on contact nut 11 surfaces, to have improved through-flow conductive capability.Described ball-and-socket face can be held moving contact tightly, and wind loading rating is strong, and electrical-contact area is large, has increased through-current capacity, and what described 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 technical program is widely used in the electric power system of the electric pressures such as 10KV, 35KV, 66KV, has that through-current capacity is large, wind loading rating is strong, fall rapidly during overload, the characteristics such as working stability is reliable, long service life, reduction maintenance cost.
More tight in order to allow conductive plate 6 cooperate with upper moving contact 12, and fall fast ability when promoting fuse failure, the opposing another side of conductive plate 6 and the one side that cartridge fuse assembly 13 is connected is provided with spring 9.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 upper moving contact 12 of cartridge fuse assembly 13 is provided with the taper seat that connects with described sphere, is combined with the contact rod 4 that beryllium bronze bar is made around described taper seat.4 armfuls of contact rods are on the taper seat of upper moving contact 12, and material adopts beryllium bronze bar to manufacture, and both can increase through-current capacity, can hold moving contact tightly again, when the fuse overcurrent fuses, can promote to fall again function.Further, contact rod 4 can calcaneus branches stay tube 7 and limiting plate 8 be screwed, with fixing effective scope of activities of contact rod 4, and conveniently assemble and disassemble.
Described 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 with, and finally is fixed on the described 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 again the position-limiting action to moving contact.
As shown in Figure 3, the fuse component 133 that the insulated tube 131 that described cartridge fuse assembly 13 interior employing plexiglas fiber blow-outs are sprayed and silicon rubber 132 wrap cartridge fuse assembly 13 inside, 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 description of the present invention being done in conjunction with concrete preferred implementation, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. fuse switch, comprise the cartridge fuse assembly, it is characterized in that, described fuse switch also comprises the conductive plate that is connected with described cartridge fuse electrical component, the upper moving contact end of described cartridge fuse assembly is provided with the sphere of contact nut, corresponding, described conductive plate is provided with the ball-and-socket face that matches with described sphere.
2. a kind of fuse switch as claimed in claim 1 is characterized in that, the sphere of described 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, the opposing another side of described conductive plate and the one side that the cartridge fuse assembly is connected is provided with spring.
4. a kind of fuse switch as claimed in claim 3 is characterized in that, described fuse switch also comprises rain cover, and a side of described spring is fixed on the inboard of rain cover, and opposite side props up described conductive plate.
5. a kind of fuse switch as claimed in claim 1 is characterized in that, the middle part of the upper moving contact of described cartridge fuse assembly is provided with the taper seat that connects with described sphere, is fixed with the contact rod that beryllium bronze bar is made around described taper seat.
6. a kind of fuse switch as claimed in claim 5 is characterized in that, described fuse switch also comprises supporting bracket, and described contact rod and conductive plate are fixed on the described supporting bracket.
7. a kind of fuse switch as claimed in claim 6 is characterized in that, described fuse switch also comprises rain cover, and a side of described spring is fixed on the inboard of rain cover, and opposite side props up described conductive plate; One end of described rain cover, contact rod and conductive plate is fixedly connected with, and finally is fixed on the described supporting bracket.
8. a kind of fuse switch as claimed in claim 1 is characterized in that, described sphere is fixed on the described upper moving contact by the contact nut, and described 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, described fuse switch also comprises insulated tube, the insulating material that described 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, described insulated tube is surrounded by silicon rubber outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210082235.0A CN103367071B (en) | 2012-03-27 | 2012-03-27 | A kind of fuse switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210082235.0A CN103367071B (en) | 2012-03-27 | 2012-03-27 | A kind of fuse switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103367071A true CN103367071A (en) | 2013-10-23 |
| CN103367071B CN103367071B (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210082235.0A Active CN103367071B (en) | 2012-03-27 | 2012-03-27 | A kind of fuse switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103367071B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470068A (en) * | 2016-01-12 | 2016-04-06 | 石家庄海斯特电气有限公司 | High-voltage fuse |
| CN110970276A (en) * | 2020-01-18 | 2020-04-07 | 坦帕（福建）电气有限公司 | Drop-out fuse |
| CN112349563A (en) * | 2020-10-31 | 2021-02-09 | 贵州电网有限责任公司 | All-round drop-out fuse |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0328468A1 (en) * | 1988-02-09 | 1989-08-16 | FERRAZ Société Anonyme | Indication device for the operation of cartridge fuses for electrical protection |
| CN2631033Y (en) * | 2003-02-13 | 2004-08-04 | 丹东大为电力设备有限公司 | Outdoor alternating-current high-voltage drop-off fuse box |
| CN2729897Y (en) * | 2004-09-22 | 2005-09-28 | 郭云龙 | Outdoor AC high-voltage injection type drop-off fuse |
| CN202003930U (en) * | 2011-02-13 | 2011-10-05 | 吉林市能兴电力设备有限公司 | Novel fuse |
| CN202549769U (en) * | 2012-03-27 | 2012-11-21 | 吉林市能兴电力设备有限公司 | Drop-out fuse |
-
2012
- 2012-03-27 CN CN201210082235.0A patent/CN103367071B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0328468A1 (en) * | 1988-02-09 | 1989-08-16 | FERRAZ Société Anonyme | Indication device for the operation of cartridge fuses for electrical protection |
| CN2631033Y (en) * | 2003-02-13 | 2004-08-04 | 丹东大为电力设备有限公司 | Outdoor alternating-current high-voltage drop-off fuse box |
| CN2729897Y (en) * | 2004-09-22 | 2005-09-28 | 郭云龙 | Outdoor AC high-voltage injection type drop-off fuse |
| CN202003930U (en) * | 2011-02-13 | 2011-10-05 | 吉林市能兴电力设备有限公司 | Novel fuse |
| CN202549769U (en) * | 2012-03-27 | 2012-11-21 | 吉林市能兴电力设备有限公司 | Drop-out fuse |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470068A (en) * | 2016-01-12 | 2016-04-06 | 石家庄海斯特电气有限公司 | High-voltage fuse |
| CN110970276A (en) * | 2020-01-18 | 2020-04-07 | 坦帕（福建）电气有限公司 | Drop-out fuse |
| CN112349563A (en) * | 2020-10-31 | 2021-02-09 | 贵州电网有限责任公司 | All-round drop-out fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103367071B (en) | 2015-12-16 |
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