CN205723570U

CN205723570U - The double glass photovoltaic module of large power high efficiency

Info

Publication number: CN205723570U
Application number: CN201620612011.XU
Authority: CN
Inventors: 张胜平; 张翼鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-21
Filing date: 2016-06-21
Publication date: 2016-11-23
Anticipated expiration: 2026-06-21

Abstract

The utility model discloses the double glass photovoltaic module of a kind of large power high efficiency, it includes the ultrawhite being arranged in order from top to bottom low steel wool surface glass (1), printing opacity EVA film (6), solar panel (7), interconnecting strip (11), busbar, white EVA film (8), glass back plate (10) and combines the securing member of above-mentioned part；The bottom of glass back plate is provided with radiation rib (15), radiation rib cross section is continuous print triangle, trapezoidal or net-shaped, luminous reflectance plated film (9) it is provided with in the radiation rib of described glass back plate bottom, this utility model can improve the radiating effect of photovoltaic module, thus improve the service life of photovoltaic module, solar illuminating intensity can double, photovoltaic generation power also doubles, photovoltaic efficiency also improves by about one time, and assembly easy disassembling, easy to use, easy to maintenance, after useful life, recovery utilization rate is high up to more than 90%.

Description

The double glass photovoltaic module of large power high efficiency

Technical field

This utility model relates to photovoltaic equipment technical field, especially relates to the double glass photovoltaic group of large power high efficiency Part.

Background technology

In the industry, " double glass photovoltaic module " has become the big focus of solar energy industry one, and double glass photovoltaic modulies are by two The photovoltaic module that sheet glass and battery are formed, replaces backboard and the aluminum mount structure of traditional components.Double glass photovoltaic modulies are hardly Permeable, can be anticorrosive, weatherability is good with fire line, can be used for high humility area, agriculture/fishing light Acid Rain Area complementary, many, high salt fog Area etc., and simple in construction, overall dimensions is little, the life-span is long.

But the shortcoming of solar double-glass assemblies is the most fairly obvious: because monocrystalline, the wave-length coverage of polycrystal silicon cell plate spectral response Between 320-1100nm, the sunlight of its all band can not be used for photovoltaic generation, now applies most double glass crystalline silicon photovoltaic Assembly is in agriculture/fishing light complementation field, and conversion efficiency is about 12%, and on the other hand photovoltaic crystalline silicon battery is easily by external environment Factor and its use microenvironment impact and cause photovoltaic efficiency decline and the lost of life；Develop both at home and abroad recently Production is exclusively used in the Novel double-glazed photovoltaic module of solar energy power generating base (factory, field), on the basis of double glass photovoltaic modulies, Have adjusted spacing and the density of photovoltaic battery panel, and use the EVA film of the ultrawhite low light transmission of improvement cementing in glass back plate, make The photovoltaic efficiency of assembly brings up to about 17%, it can be seen that backboard is the important component part of photovoltaic module, not only rises To the effect of encapsulation, photovoltaic module internal cell to be ensured is not affected by environment, it is ensured that the use of photovoltaic module In the life-span, in the case of the monocrystalline of solar battery sheet, polysilicon purity spend bigger cost also to be difficult to improve again, study photovoltaic Glass back plate etc. seem the most necessary to generated output and the heat dispersion of photovoltaic module, and existing photovoltaic glass backboard can not be very Dispelling the heat photovoltaic module well, and reduce generated output and the generating efficiency of photovoltaic module, this is also this utility model institute Key issue to be solved.

Summary of the invention

The purpose of this utility model is to overcome the deficiency that in above-mentioned prior art, solar photovoltaic assembly exists, it is provided that one Kind can improve generating efficiency and generated output, improve photovoltaic module lower end thermal current convection current microenvironment, there is good heat radiating function The double glass photovoltaic module of large power high efficiency.

The technical problems to be solved in the utility model is adopted the technical scheme that: the double glass photovoltaic module of large power high efficiency, Including the ultrawhite being arranged in order from top to bottom low steel wool surface glass, printing opacity EVA film, solar panel, interconnecting strip, busbar, White EVA film, glass back plate and combine the securing member of above-mentioned part；The bottom of glass back plate is provided with radiation rib, described scattered Hot section of ribs is continuous print triangle, trapezoidal or net-shaped, the radiation rib of described glass back plate low side is provided with light anti- Penetrate plated film.

Further, described securing member include bolt, the first packing ring of bolt upper end, the step pad of bolt lower end, second Packing ring, padded nut, described bolt is by screw sleeve, step pad through whole assembly, and described padded nut is connected to photovoltaic and props up Forming vent passages on frame, one end of described screw sleeve and step pad respectively penetrates assembly and mutually closely cooperates.

Further, described radiation rib cross section be continuous print triangle or trapezoidal time, angle is 30-90 °.

Further, the material of described luminous reflectance plated film is aluminum or hydrargyrum.

The beneficial effects of the utility model: compared with prior art, 1, by arranging radiation rib in glass back plate, by Improvement and glass back plate area of dissipation in its heat radiation microenvironment bring up to more than simple glass backboard twice (focusing ratio 2), can Improve the radiating effect of photovoltaic module, thus improve the service life of photovoltaic module, then solar illuminating intensity can double, Photovoltaic generation power also doubles, and photovoltaic efficiency also improves by about one time,；2, arrange in the radiation rib in glass back plate Reflectance coating the solar energy penetrating cell panel constantly can be reflected and reflex on cell panel, photovoltaic module generating efficiency can be improved More than 20%；3, the bolt arranged in glass back plate and padded nut can make to form 10-30 milli between photovoltaic module and photovoltaic bracket The vent passages in rice gap, to ensure that the heat under photovoltaic module is not trapped in the framework of photovoltaic bracket, can serve raising The generated energy of photovoltaic module and the effect in the service life of photovoltaic module；4, utilize bolt fastening and glued joint the side of connection combined Formula so that this assembly easy disassembling, easy to use, easy to maintenance, after useful life, recovery utilization rate is high up to more than 90%.

Accompanying drawing explanation

Fig. 1 is main TV structure schematic diagram of the present utility model,

Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1,

Fig. 3 is the C-C sectional structure schematic diagram of Fig. 1,

Fig. 4 is structure for amplifying schematic diagram at the B of Fig. 2,

Fig. 5 is the Q-Q structure for amplifying schematic diagram of Fig. 3.

In the drawings, 1, ultrawhite low steel wool surface glass 2, bolt 3, padded nut 4, rosette the 5, first packing ring 6, printing opacity EVA film 7, solar panel 8, white EVA film 9, luminous reflectance plated film 10, glass back plate 11, interconnecting strip 12, screw sleeve 13, step pad the 14, second packing ring 15, radiation rib α, angle.

Detailed description of the invention

In order to make those skilled in the art be more fully understood that technical scheme, combine concrete real below according to accompanying drawing Execute example so that this utility model to be described in further detail.

As shown in Figure 1,2,3, 4, the double glass photovoltaic module of described large power high efficiency, including the ultrawhite being arranged in order from top to bottom Low steel wool surface glass 1(light transmittance more than 92%, 1.8 millimeter of 3.2 millimeters thick), printing opacity EVA film 6(be generally transparent color, Light transmittance requirement is high), solar panel 7(include monocrystalline silicon, class monocrystalline and polysilicon), interconnecting strip 11, busbar (figure In be not drawn into), white EVA film 8(light transmittance requirement is less than printing opacity EVA film), glass back plate 10, rosette 4 and combine above-mentioned portion The securing member divided；The bottom of glass back plate is provided with radiation rib 15, and described radiation rib cross section is continuous print triangle, ladder Shape, net-shaped etc., the radiation rib of glass back plate bottom surface is provided with luminous reflectance plated film 9.

Preferably, in order to make above-mentioned middle each several part be prone to dismounting and easy to maintenance, concrete a kind of securing member such as Fig. 5 institute Showing, it includes step pad 13, second packing ring 14 of bolt 2, the first packing ring 5 of bolt upper end, bolt lower end, padded nut 3, institute Stating bolt by screw sleeve 12, step pad 13 through whole assembly, described padded nut is connected on photovoltaic bracket be formed and ventilates Passage (support is not drawn into), one end of described screw sleeve and step pad respectively penetrates assembly and mutually closely cooperates, described screw rod Set and step pad all use the silica gel material with elastic buffer and sealed nature.

Preferably, for making large power high efficiency described in the utility model double glass photovoltaic module acquisition preferably heat radiation and glass carry on the back Plate luminous reflectance effect, as shown in Figure 4, when radiation rib cross section be continuous print triangle trapezoidal time, angle α is 30-90 °.

Preferably, in order to the most repeatedly will transmit through the luminous energy refraction of cell panel, reflex to can improve on cell panel battery The generating efficiency of plate and generated energy, the material of described luminous reflectance plated film is aluminum or hydrargyrum etc., luminous reflectance can reach 80% with On, for preventing above-mentioned optical reflection film aging, the materials such as silicon monoxide, Afluon (Asta), silicon dioxide can be used to make protecting film and to carry out Protection.

If the double glass photovoltaic module of described large power high efficiency is installed with solar energy tracking device, solar energy arrangement of mirrors Become and mutually there is certain reflection, refraction angle, when the focusing ratio of the double glass photovoltaic module of large power high efficiency is more than 2, can be significantly Improve this pair of glass photovoltaic module photovoltaic efficiency about 100% (normal light photovoltaic assembly photovoltaic efficiency 16% ~ 20%, this assembly Photovoltaic efficiency is then up to 30% ~ 40% under these conditions, and the photovoltaic generation power of this assembly also corresponds to double), Owing to the intensity of light doubles left and right, normal light photovoltaic assembly is easy crosses cause thermal damage assembly, causes assembly life-span to shorten, generating effect Rate declines, and backboard is crossed heat ageing, come off, it is therefore desirable to be equipped with more preferable heat abstractor: luminous reflectance plated film of the present invention The bottom surface of glass is all concavo-convex triangle radiation rib (or heat radiation sash bar etc. of other physical dimensions), its radiating surface launched Long-pending is about 2 times of this transparency area, and owing to area of dissipation doubles left and right, effect also just improves by about one time；Furthermore this The effect of bright described special high nut is the gap of padded assembly and photovoltaic bracket so that it is forms thermal current convection channel, protects Cross-ventilation under card assembly, reaches assembly radiating so that it is heat and hot-air are not trapped in the framework of photovoltaic bracket, with above-mentioned Heat sinking back-plate glass has reached double-radiation function effect together.

Embodiment of above is only in order to illustrate the technical solution of the utility model and unrestricted, although with reference to specific embodiment This utility model is described in detail, it will be understood by those within the art that, can be to the technical side of the present invention Case is modified or equivalent, and without deviating from the spirit and scope of technical solutions of the utility model, it all should be contained at this In the protective scope of the claims of utility model.

Claims

1. the double glass photovoltaic module of large power high efficiency, it is characterised in that: include the ultrawhite low steel wool face glass being arranged in order from top to bottom Glass (1), printing opacity EVA film (6), solar panel (7), interconnecting strip (11), busbar, white EVA film (8), glass back plate And combine the securing member of above-mentioned part (10)；The bottom of glass back plate is provided with radiation rib (15), described radiation rib cross section In continuous print triangle, trapezoidal or net-shaped, the radiation rib of described glass back plate bottom is provided with luminous reflectance plated film (9).

The double glass photovoltaic module of large power high efficiency the most according to claim 1, it is characterised in that: described securing member includes bolt (2), first packing ring (5) of bolt upper end, the step pad (13) of bolt lower end, the second packing ring (14), padded nut (3), described Bolt is by screw sleeve (12), step pad (13) through whole assembly, and described padded nut is connected on photovoltaic bracket be formed and leads to Wind passage, one end of described screw sleeve and step pad respectively penetrates assembly and mutually closely cooperates.

The double glass photovoltaic module of large power high efficiency the most according to claim 1, it is characterised in that: described radiation rib cross section in Continuous print triangle or trapezoidal time, angle (α) is 30-90 °.

The double glass photovoltaic module of large power high efficiency the most according to claim 1, it is characterised in that: the material of described luminous reflectance plated film Matter is aluminum or hydrargyrum.