CN204332882U - A kind of instrument special safety silk - Google Patents
A kind of instrument special safety silk Download PDFInfo
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- CN204332882U CN204332882U CN201420804290.0U CN201420804290U CN204332882U CN 204332882 U CN204332882 U CN 204332882U CN 201420804290 U CN201420804290 U CN 201420804290U CN 204332882 U CN204332882 U CN 204332882U
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- fuse
- special safety
- instrument special
- melt
- arc extinguishing
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Abstract
The utility model relates to fuse technologies field, particularly relate to a kind of instrument special safety silk, comprise body and be located at the current terminal at body two ends, at least two fuses are provided with in body, fuse is parallel with one another, every bar fuse comprises the thick melt and thin melt that are arranged alternately, and thin melt comprises the horizontal segment being closely wound around section and being located at closely winding section two ends, is also provided with arc extinguishing layer in body.Compared with prior art, a kind of minitype high voltage fuse of the present utility model, at least two fuses in body are arranged in parallel, fuse comprises the thick melt and thin melt that are arranged alternately, thin melt comprises the horizontal segment being closely wound around section and being located at closely winding section two ends, when be short-circuited or current overload time, tight winding section temperature raises fusing rapidly, substantially increase the response time, circuit is effectively protected, change number and the arrangement mode of fuse, rated voltage can cover 90-280V, considerably increase the scope of application, and volume is little, structure is simple, be applicable to large-scale promotion application.
Description
Technical field
The utility model relates to fuse technologies field, particularly relates to a kind of instrument special safety silk.
Background technology
Fuse refers to when electric current exceedes setting, and with the heat that itself produces, melt is fused, a kind of electrical equipment of open circuit, fuse is also known as fuse.Fuse is after exceeding setting a period of time according to electric current, makes Melt molten, thus circuit is disconnected with the heat that himself produces; Use a kind of circuit brake that this principle is made.Fuse is widely used in high and low voltage electric distribution system and control system and power consumption equipment, as the protector of short circuit and overcurrent, is apply one of the most general protector.
Fuse is widely used in various instrument, as universal instrument, and thermostat; kilowatt meter reading-out system, electric jacket, for the protection of circuit; existing instrument is more and more miniaturized, more and more accurate, therefore also more and more higher to the requirement of fuse; as little, high pressure resistant in wanted cube, when being short-circuited, disjunction is fast; protective meter effectively; but it is little, high pressure resistant to meet volume in the market simultaneously, the fuse that disjunction is fast is also rarely found.
Therefore, be badly in need of providing a kind of instrument special safety silk, to solve the deficiencies in the prior art.
Summary of the invention
The utility model provides a kind of instrument special safety silk for overcoming above-mentioned defect, and volume is little, high pressure resistant, and disjunction is fast, and applied range, the range of nominal tension can reach 90-280V.
For achieving the above object, the utility model adopts following technical scheme:
A kind of instrument special safety silk, comprise body and be located at the current terminal at described body two ends, at least two fuses are provided with in described body, described fuse is parallel with one another, fuse described in every bar comprises the thick melt and thin melt that are arranged alternately, described thin melt comprises the horizontal segment being closely wound around section and being located at described tight winding section two ends, is also provided with arc extinguishing layer in described body.It is many that tight winding section is wound around the number of turns, and cross-sectional area again little temperature raise rapidly and occur to disconnect rapidly, substantially increase the response time, circuit effectively protected.
More preferably, the cross-sectional area of described tight winding section is less than the cross-sectional area of described horizontal segment.Tight winding section is wound around that the number of turns is many, and cross-sectional area is little again, when be short-circuited or current overload time, be closely wound around section and be heated soon, can disconnect rapidly.
More preferably, zinc-plated or lead plating in described tight winding section.The fusing point of tin is low, when be short-circuited or current overload time, be closely wound around heat conduction that section produces to tin, tin is melted by heat at first, produces metallurgical benefit, and then accelerates the fusing being closely wound around section, improves the response time, further protective circuit.
More preferably, described tight winding section offers some through holes.
More preferably, described thin melt is filamentary silver or silver-nickel silk.
More preferably, described thick melt is monel silk, Kufil spun gold or nickeline copper alloy silk.
More preferably, described arc extinguishing layer is the arc extinguishing sand of full packing, the arc extinguishing sand of partly filling, the arc extinguishing block of solidification or the arc extinguishing glue of coating.
More preferably, described arc extinguishing sand is quartz sand.
More preferably, described current terminal is copper tip, the gold-plated terminal of copper, the silver-plated terminal of copper, copper nickel plating terminal or the zinc-plated terminal of copper.
More preferably, described body is epoxy resin body or ceramic body, is coated with explosion-proof layer outside described body.
The utility model discloses a kind of instrument special safety silk, comprise body and be located at the current terminal at described body two ends, at least two fuses are provided with in described body, described fuse is parallel with one another, fuse described in every bar comprises the thick melt and thin melt that are arranged alternately, described thin melt comprises the horizontal segment being closely wound around section and being located at described tight winding section two ends, is also provided with arc extinguishing layer in described body.Compared with prior art, a kind of minitype high voltage fuse of the present utility model, at least two fuses in body are arranged in parallel, fuse comprises the thick melt and thin melt that are arranged alternately, thin melt comprises the horizontal segment being closely wound around section and being located at described tight winding section two ends, when be short-circuited or current overload time, it is many that tight winding section is wound around the number of turns, and cross-sectional area again little temperature raise rapidly occur fusing disconnect, substantially increase the response time, circuit is effectively protected, change number and the arrangement mode of fuse, rated voltage can cover 90-280V, considerably increase the scope of application, and volume is little, structure is simple, be applicable to large-scale promotion application.
Accompanying drawing explanation
With accompanying drawing, the utility model is described in further detail, but the embodiment in accompanying drawing is not formed any restriction of the present utility model.
Fig. 1 is the structural representation of a kind of instrument special safety silk described in embodiment 1.
Fig. 2 is the structural representation of a kind of instrument special safety silk described in embodiment 2.
Embodiment
Be further described the utility model below in conjunction with drawings and Examples, this is preferred embodiment of the present utility model.
Embodiment 1
A kind of instrument special safety silk, comprise body 1 and be located at the current terminal 2 and 3 at described body two ends, current terminal 2 and 3 is copper tip, two fuses 4 and 5 are provided with in described body 1, described fuse 4 and 5 is parallel with one another, fuse described in every bar comprises the thick melt 6 and thin melt 7 that are arranged alternately, described thick melt 6 is monel silk, described thin melt 7 is filamentary silver, described thin melt 7 comprises the horizontal segment 72 being closely wound around section 71 and being located at described tight winding section 71 two ends, the arc extinguishing sand 8 of full packing is also provided with in described body 1, arc extinguishing sand 8 is quartz sand, quartz sand can prevent the generation of electric arc, avoid breaking out of fire, when be short-circuited or current overload time, it is many that tight winding section 71 is wound around the number of turns, and cross-sectional area again little temperature raise rapidly occur fusing disconnect, substantially increase the response time, circuit effectively protected, change number and the arrangement mode of fuse, rated voltage can cover 90-280V, considerably increase the scope of application, and volume is little, structure is simple, is applicable to large-scale promotion application.
More preferably, the cross-sectional area of described tight winding section 71 is less than the cross-sectional area of described horizontal segment 72.It is many that tight winding section 71 is wound around the number of turns, and cross-sectional area is little again, when be short-circuited or current overload time, be closely wound around section 71 and be heated soon, can disconnect rapidly.
More preferably, zinc-plated in described tight winding section 71.The fusing point of tin is low, when be short-circuited or current overload time, be closely wound around heat conduction that section 71 produces to tin, tin is melted by heat at first, produces metallurgical benefit, and then accelerates the fusing being closely wound around section 71, improves the response time, further protective circuit.
More preferably, described tight winding section 71 offers some through holes.Closely be wound around section 71 on the one hand and usually use silver or silver alloy, costly, can be reduced costs by punching, another side can reduce difficulty of processing, ensure that the effect of quick fuse simultaneously.
More preferably, described body 1 is epoxy resin body, is coated with explosion-proof layer 11 outside described body 1.Body 1 surface printing has product parameters, and explosion-proof layer 11 1 aspect can improve the security performance of product, the writing of the parameter that participates in evaluation and electing can be protected clear on the other hand, be not easy fuzzy.
Embodiment 2
A kind of instrument special safety silk, comprise body 1 and be located at the current terminal 2 and 3 at described body two ends, current terminal 2 and 3 is the gold-plated terminal of copper, the silver-plated terminal of copper, copper nickel plating terminal or the zinc-plated terminal of copper, three fuses 4 are provided with in described body 1, 5 and 9, described fuse 4, 5 and 9 is parallel with one another, fuse described in every bar comprises the thick melt 6 and thin melt 7 that are arranged alternately, described thick melt 6 is Kufil spun gold or nickeline copper alloy silk, described thin melt 7 is silver-nickel silk, described thin melt 7 comprises the horizontal segment 72 being closely wound around section 71 and being located at described tight winding section 71 two ends, the arc extinguishing sand of half filling is also provided with in described body 1, the arc extinguishing block of solidification or the arc extinguishing glue 8 of coating, arc extinguishing sand 8 is quartz sand, quartz sand can prevent the generation of electric arc, avoid breaking out of fire, when be short-circuited or current overload time, it is many that tight winding section 71 is wound around the number of turns, and cross-sectional area again little temperature raise rapidly occur fusing disconnect, substantially increase the response time, circuit effectively protected, change number and the arrangement mode of fuse, rated voltage can cover 90-280V, considerably increase the scope of application, and volume is little, structure is simple, is applicable to large-scale promotion application.
More preferably, the cross-sectional area of described tight winding section 71 is less than the cross-sectional area of described horizontal segment 72.It is many that tight winding section 71 is wound around the number of turns, and cross-sectional area is little again, when be short-circuited or current overload time, be closely wound around section 71 and be heated soon, can disconnect rapidly.
More preferably, lead plating in described tight winding section 71.Plumbous fusing point is low, when be short-circuited or current overload time, be closely wound around heat conduction that section 71 produces to plumbous, lead is melted by heat at first, produces metallurgical benefit, and then accelerates the fusing being closely wound around section 71, improves the response time, further protective circuit.
More preferably, described tight winding section 71 offers some through holes.Closely be wound around section 71 on the one hand and usually use silver or silver alloy, costly, can be reduced costs by punching, another side can reduce difficulty of processing, ensure that the effect of quick fuse simultaneously.
More preferably, described body 1 is ceramic body, is coated with explosion-proof layer 11 outside described body 1.Body 1 surface printing has product parameters, and explosion-proof layer 11 1 aspect can improve the security performance of product, the writing of the parameter that participates in evaluation and electing can be protected clear on the other hand, be not easy fuzzy.
Compared with prior art, a kind of minitype high voltage fuse of the present utility model, at least two fuses in body are arranged in parallel, fuse comprises the thick melt and thin melt that are arranged alternately, thin melt comprises the horizontal segment being closely wound around section and being located at described tight winding section two ends, when be short-circuited or current overload time, it is many that tight winding section is wound around the number of turns, and cross-sectional area again little temperature raise rapidly occur fusing disconnect, substantially increase the response time, circuit is effectively protected, change number and the arrangement mode of fuse, rated voltage can cover 90-280V, considerably increase the scope of application, and volume is little, structure is simple, be applicable to large-scale promotion application.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not the restriction to the utility model protection range; although done to explain to the utility model with reference to better embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (10)
1. an instrument special safety silk, comprise body and be located at the current terminal at described body two ends, it is characterized in that: in described body, be provided with at least two fuses, described fuse is parallel with one another, fuse described in every bar comprises the thick melt and thin melt that are arranged alternately, described thin melt comprises the horizontal segment being closely wound around section and being located at described tight winding section two ends, is also provided with arc extinguishing layer in described body.
2. instrument special safety silk according to claim 1, is characterized in that: the cross-sectional area of described tight winding section is less than the cross-sectional area of described horizontal segment.
3. instrument special safety silk according to claim 1 and 2, is characterized in that: zinc-plated or lead plating in described tight winding section.
4. instrument special safety silk according to claim 1 and 2, is characterized in that: described tight winding section offers some through holes.
5. instrument special safety silk according to claim 1, is characterized in that: described thin melt is filamentary silver or silver-nickel silk.
6. instrument special safety silk according to claim 1, is characterized in that: described thick melt is monel silk, Kufil spun gold or nickeline copper alloy silk.
7. instrument special safety silk according to claim 1, is characterized in that: described arc extinguishing layer is the arc extinguishing sand of full packing, the arc extinguishing sand of partly filling, the arc extinguishing block of solidification or the arc extinguishing glue of coating.
8. instrument special safety silk according to claim 7, is characterized in that: described arc extinguishing sand is quartz sand.
9. instrument special safety silk according to claim 1, is characterized in that: described current terminal is copper tip, the gold-plated terminal of copper, the silver-plated terminal of copper, copper nickel plating terminal or the zinc-plated terminal of copper.
10. instrument special safety silk according to claim 1, is characterized in that: described body is epoxy resin body or ceramic body, is coated with explosion-proof layer outside described body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804290.0U CN204332882U (en) | 2014-12-16 | 2014-12-16 | A kind of instrument special safety silk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804290.0U CN204332882U (en) | 2014-12-16 | 2014-12-16 | A kind of instrument special safety silk |
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| Publication Number | Publication Date |
|---|---|
| CN204332882U true CN204332882U (en) | 2015-05-13 |
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| CN201420804290.0U Active CN204332882U (en) | 2014-12-16 | 2014-12-16 | A kind of instrument special safety silk |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI574292B (en) * | 2015-08-21 | 2017-03-11 | Ching Ho Li | Surface adhesion type fuse and manufacturing method thereof |
| WO2020237771A1 (en) * | 2019-05-31 | 2020-12-03 | 厦门大恒科技有限公司 | Two-stage fuse structure capable of withstanding lightning current and fuse using same |
-
2014
- 2014-12-16 CN CN201420804290.0U patent/CN204332882U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI574292B (en) * | 2015-08-21 | 2017-03-11 | Ching Ho Li | Surface adhesion type fuse and manufacturing method thereof |
| WO2020237771A1 (en) * | 2019-05-31 | 2020-12-03 | 厦门大恒科技有限公司 | Two-stage fuse structure capable of withstanding lightning current and fuse using same |
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