CN204289320U - A kind of photovoltaic fuse - Google Patents
A kind of photovoltaic fuse Download PDFInfo
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- CN204289320U CN204289320U CN201420805465.XU CN201420805465U CN204289320U CN 204289320 U CN204289320 U CN 204289320U CN 201420805465 U CN201420805465 U CN 201420805465U CN 204289320 U CN204289320 U CN 204289320U
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- fuse
- photovoltaic
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- copper
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Abstract
The utility model relates to fuse technologies field, particularly relate to a kind of photovoltaic fuse, comprise body and be located at the first current terminal and second 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, and the outer surface of described fuse forms some small ruts, fills or be partly filled with arc extinguishing particle in described body.Compared with prior art, photovoltaic fuse of the present utility model, is provided with at least two fuses in body, fuse is in parallel, larger voltage can be born, all right filtered pulse electric current, fuse outer surface forms small rut, and arc extinguishing is particles filled in small rut, the contact area of arc extinguishing particle and fuse is large, when there is thunderbolt, the generation of electric arc can be avoided to the full extent, ensureing the normal use of photovoltaic fuse.
Description
Technical field
The utility model relates to fuse technologies field, particularly relates to a kind of photovoltaic fuse.
Background technology
Fuse refers to when electric current exceedes setting, with the heat that itself produces, melt is fused, a kind of electrical equipment of open circuit.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.
Photovoltaic fuse is widely used in photovoltaic combiner box circuit protection, the circuit protection of photovoltaic DC-to-AC converter and solar product, the fuse of solar energy photovoltaic system protection needs the direct current of 1000V, voltage is high, and photovoltaic fuse breaking capacity is in the market poor, corresponding time length can not effectively protective circuit; In the spread of voltages such as thunderbolt or the situation having current impulse, easily produce electric arc, cause the end of fuse-link to emit breakdown, base bursts, and infringement circuit, even meets accident, and threatens the personal safety of user.
Therefore, be badly in need of providing a kind of photovoltaic fuse, to solve the deficiencies in the prior art.
Summary of the invention
The utility model provides a kind of photovoltaic fuse for overcoming above-mentioned defect, and fusing time is short, can arc extinguishing rapidly, ensures use safety.
For achieving the above object, the utility model adopts following technical scheme:
A kind of photovoltaic fuse, comprise body and be located at the first current terminal and second 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, the outer surface of described fuse forms some small ruts, fills in described body or be partly filled with arc extinguishing particle.Fuse is in parallel, larger voltage can be born, all right filtered pulse electric current, fuse outer surface forms small rut, arc extinguishing is particles filled in small rut, and the contact area of arc extinguishing particle and fuse is large, when there is thunderbolt, the generation of electric arc can be avoided to the full extent, ensure the normal use of photovoltaic fuse.
More preferably, described arc extinguishing particle is the quartz sand of particle diameter between 500 order-1500 orders.The particle diameter of arc extinguishing particle is less, and larger with contact area fuse outer surface forming small rut, arc quenching effect is better.
More preferably, described thin melt is filamentary silver or silver-nickel silk.
More preferably, zinc-plated or lead plating on described thin melt.The fusing point of tin and lead is low, and after thin melt is heated, tin first melts, and then produces metallurgical effect with thin melt, accelerates the fusing of thin melt, accelerates response speed, protects photovoltaic circuit further.
More preferably, described thin melt also offers some through holes or groove.Costly, can be reduced costs by punching, another side can reduce difficulty of processing to thin melt, ensure that the effect of quick fuse simultaneously on the one hand.
More preferably, described thick melt is monel silk, Kufil spun gold or nickeline copper alloy silk.
More preferably, described fuse is curling shape or linearity.
More preferably, described current terminal is copper tip, the gold-plated terminal of copper, the silver-plated terminal of copper, copper nickel plating terminal, 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.
More preferably, described first current terminal and the second current terminal are also coated with porcelain core outward.
The utility model discloses a kind of photovoltaic fuse, comprise body and be located at the first current terminal and second 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, the outer surface of described fuse forms some small ruts, fills in described body or be partly filled with arc extinguishing particle.Compared with prior art, photovoltaic fuse of the present utility model, is provided with at least two fuses in body, fuse is in parallel, larger voltage can be born, all right filtered pulse electric current, fuse outer surface forms small rut, and arc extinguishing is particles filled in small rut, the contact area of arc extinguishing particle and fuse is large, when there is thunderbolt, the generation of electric arc can be avoided to the full extent, ensureing the normal use of photovoltaic fuse.
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 photovoltaic fuse of embodiment 1 of the present utility model.
Fig. 2 is the structural representation of a kind of photovoltaic fuse of embodiment 2 of the present utility model.
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
As shown in Figure 1, a kind of photovoltaic fuse, comprise body 1 and be located at first current terminal 2 and second current terminal 3 at described body 1 two ends, described first current terminal 2 and the second current terminal 3 are copper tip, two fuses 4 and 5 are provided with in described body 1, described fuse 4 and 5 is parallel with one another, described fuse 4 and 5 is linearly, described fuse 4 comprises the thick melt 41 and thin melt 42 that are arranged alternately, described thin melt 42 is filamentary silver, described thick melt 41 is monel silk, the outer surface of described fuse 4 and 5 forms some small ruts 7, arc extinguishing particle 6 is filled with in described body 1.Fuse 4 and 5 is in parallel, larger voltage can be born, all right filtered pulse electric current, fuse 4 and 5 outer surface forms small rut 7, arc extinguishing particle 6 is filled in small rut 7, and arc extinguishing particle 6 is large with the contact area of fuse 4 and 5, when there is thunderbolt, the generation of electric arc can be avoided to the full extent, ensure the normal use of photovoltaic fuse.
More preferably, described arc extinguishing particle 6 for particle diameter be 1500 object quartz sands, the particle diameter of arc extinguishing particle 6 is less, and larger with contact area fuse 4 and 5 outer surface forming small rut 7, arc quenching effect is better.
More preferably, zinc-plated on described thin melt 42.The fusing point of tin is low, and after thin melt 42 is heated, tin first melts, and then produces metallurgical effect with thin melt 42, accelerates the fusing of thin melt 42, accelerates response speed, protects photovoltaic circuit further.
More preferably, described thin melt 42 also offers some through holes, silver costly on the one hand, and 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.
More preferably, porcelain core 8 and 9 is also coated with outside described first current terminal 2 and the second current terminal 3, porcelain core 8 and 9 usually uses beryllium oxide to make for material, beryllium oxide has high heat conduction and low dielectric constant, described first current terminal 2 and the second current terminal 3 can be made can to bear large voltage, too many heat can not be gathered simultaneously, prevent electrical appliance from damaging.
Embodiment 2
As shown in Figure 2, a kind of photovoltaic fuse, comprise body 1 and be located at first current terminal 2 and second current terminal 3 at described body 1 two ends, described first current terminal 2 and described second current terminal 3 are the gold-plated terminal of copper, the silver-plated terminal of copper, copper nickel plating terminal, the zinc-plated terminal of copper, three fuses 4 are provided with in described body 1, 5 and 10, described fuse 4, 5 and 10 is parallel with one another, described fuse 4, 5 and 10 in curling shape, described fuse 4 comprises the thick melt 41 and thin melt 42 that are arranged alternately, described thin melt 42 is silver-nickel silk, described thick melt 41 is Kufil spun gold or nickeline copper alloy silk, described fuse 4, the outer surface of 5 and 10 forms some small ruts 7, arc extinguishing particle 6 is filled with in described body 1.Fuse 4,5 and 10 is in parallel, larger voltage can be born, all right filtered pulse electric current, fuse 4 and 5 outer surface forms small rut 7, arc extinguishing particle 6 is filled in small rut 7, and arc extinguishing particle 6 is large with the contact area of fuse 4,5 and 10, when there is thunderbolt, the generation of electric arc can be avoided to the full extent, ensure the normal use of photovoltaic fuse.
More preferably, described arc extinguishing particle 6 for particle diameter be 500 object quartz sands, the particle diameter of arc extinguishing particle 6 is less, and larger with contact area fuse 4,5 and 10 outer surface forming small rut 7, arc quenching effect is better.
More preferably, lead plating on described thin melt 42.Plumbous fusing point is low, and after thin melt 42 is heated, tin first melts, and then produces metallurgical effect with thin melt 42, accelerates the fusing of thin melt 42, accelerates response speed, protects photovoltaic circuit further.
More preferably, described thin melt 42 also offers some grooves, silver costly on the one hand, and 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 resins 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.
More preferably, porcelain core 8 and 9 is also coated with outside described first current terminal 2 and the second current terminal 3, porcelain core 8 and 9 usually uses beryllium oxide to make for material, beryllium oxide has high heat conduction and low dielectric constant, described first current terminal 2 and the second current terminal 3 can be made can to bear large voltage, too many heat can not be gathered simultaneously, prevent electrical appliance from damaging.
Compared with prior art, photovoltaic fuse of the present utility model, is provided with at least two fuses in body, fuse is in parallel, larger voltage can be born, all right filtered pulse electric current, fuse outer surface forms small rut, and arc extinguishing is particles filled in small rut, the contact area of arc extinguishing particle and fuse is large, when there is thunderbolt, the generation of electric arc can be avoided to the full extent, ensureing the normal use of photovoltaic fuse.
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. a photovoltaic fuse, comprise body and be located at the first current terminal and second 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, the outer surface of described fuse forms some small ruts, fills in described body or be partly filled with arc extinguishing particle.
2. photovoltaic fuse according to claim 1, is characterized in that: described arc extinguishing particle is the quartz sand of particle diameter between 500 order-1500 orders.
3. photovoltaic fuse according to claim 1, is characterized in that: described thin melt is filamentary silver or silver-nickel silk.
4. the photovoltaic fuse according to claim 1 or 3, is characterized in that: zinc-plated or lead plating on described thin melt.
5. photovoltaic fuse according to claim 1, is characterized in that: described thin melt also offers some through holes or groove.
6. photovoltaic fuse according to claim 1, is characterized in that: described thick melt is monel silk, Kufil spun gold or nickeline copper alloy silk.
7. photovoltaic fuse according to claim 1, is characterized in that: described fuse is curling shape or linearity.
8. photovoltaic fuse 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, the zinc-plated terminal of copper.
9. photovoltaic fuse 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.
10. photovoltaic fuse according to claim 1, is characterized in that: described first current terminal and the second current terminal are also coated with porcelain core outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805465.XU CN204289320U (en) | 2014-12-16 | 2014-12-16 | A kind of photovoltaic fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805465.XU CN204289320U (en) | 2014-12-16 | 2014-12-16 | A kind of photovoltaic fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204289320U true CN204289320U (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420805465.XU Active CN204289320U (en) | 2014-12-16 | 2014-12-16 | A kind of photovoltaic fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204289320U (en) |
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2014
- 2014-12-16 CN CN201420805465.XU patent/CN204289320U/en active Active
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