A kind of heat insulation type film solar battery structure
Technical field
The present invention relates to a kind of solar battery structure, relate to a kind of heat insulation type film solar battery structure in particular.
Background technology
Solar cell is being studied and produced in country all in the world development at present, BIPV is used by market just gradually, volt architecture-integral technology of the prior art such as Chinese patent application number 200720055764.6 disclosed a kind of solar energy photovoltaic glass curtain wall assemblies, Chinese patent application number 200720030272.1 disclosed a kind of amorphous silicon solar cell modules and Chinese patent application number 200720049079.2 disclosed a kind of amorphous silicon photovoltaic architecture-integrals.
Though BIPV of the prior art can reach generating, the effect of sunshade, but in actual engineering, but run into a generating and energy-conservation both afoul problems, make indoor temperature sharply rise as crystal silicon cell assembly or thin-film solar cells to a large amount of secondary thermal radiation of ultrared absorption back generation, cause the summer indoor temperature too high, problems such as sound insulation value difference, and the national current energy-saving and emission-reduction of always advocating, after design or having used the BIPV scheme,, photovoltaic module causes indoor thermal effect problem though can generating electricity, the thermal radiation that causes the electricity energy and bring makes needs strengthen the running power of room conditioning, and the actual effectiveness that can reach of this green energy resource really has been lowered greatly.
In view of this, the inventor has this case to produce at the problem further investigation that solar cell in the prior art can additionally cause indoor temperature to rise eventually.
Summary of the invention
Main purpose of the present invention is to provide a kind of heat insulation type film solar battery structure, to solve thin-film solar cells glass assembly heat-proof quality difference problem in the prior art.
Secondary objective of the present invention is to provide a kind of heat insulation type film solar battery structure, to solve thin-film solar cells glass assembly sound insulation value difference problem in the prior art.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of heat insulation type film solar battery structure comprises thin-film solar cells, wherein, also comprises low emissivity glass, and this low emissivity glass links to each other with this thin-film solar cells, and is arranged on the backlight side of this thin-film solar cells.
Also be formed with hollow structure between this low emissivity glass and this thin-film solar cells, this hollow structure comprises cavity and interval box, be filled with air in this cavity, argon gas, krypton gas or the gas that mixes mutually, this interval box is selected from the aluminium spacer bar between 5~30mm, the stainless steel spacer bar, the thermosetting polyester spacer bar, one of warm limit spacer bar that polypropylene and stainless steel are synthetic, and the desiccant molecular sieve of can will be carried out after the spacer bar bending, this hollow structure also comprises with butyl rubber etc. and coheres the bead layer of glue to the interval box edge sealing, and the sealant that slit between low emissivity glass and the glass is sealed with structural silicone adhesive or poly-sulphur glue etc.
This heat insulation type film solar battery structure also includes intermediate coat and glass substrate, this intermediate coat is bonded on the glass substrate, this intermediate coat by more than one deck and thickness be the transparent PVB of 0.2~50mm, EVA, SGP or PU material are made, this glass substrate is arranged between thin-film solar cells and the low emissivity glass or the side backlight of low emissivity glass, be hedged off from the outer world by edge sealing adhesives such as butyl rubber or polyurethane between this glass substrate and glass substrate or the thin-film solar cells glass, this glass substrate is selected from the common float glass of 2.8~15mm, the ultra-white float glass of low iron-holder or the glass that strengthens by heat treatment.
This thin-film solar cells comprises glass and one deck or multilayer and the film that forms in glass surface deposition CdTe/CdS, CIS, CIGS, A-Si, a-si/a-si, a-si/uc-si and three junction amorphous silicons.
This glass is that transmitance is 〉=75% plate glass.
This film back portion carries out the clear limit processing that width is 5~30mm via mask method, sandblast or mechanical lapping mode.
The mode of this film by laser scribing forms the semi-transparency type that 0.5%~90% proportional region sees through outdoor light with linear or grid-like the removing.
This film surface is also by the welding of ultrasonic bonding, electric iron or have the sticking card of tin copper strips that is coated with of conducting resinl to form width be that 1~15mm, thickness are the metallic conduction band of 0.02~5mm, the electrode of this thin-film solar cells in thin-film solar cells limit portion or draw in the hole or the bight of back glass, this metallic conduction band is to be coated with a kind of in tin copper strips, interconnector or the busbar.
The limit portion of glass is round edge, hypotenuse or the straight flange that mechanical lapping forms, and the bight of glass forms safety angle for grinding.
This thin-film solar cells phototropic face also deposits and is formed with one deck or above antireflective coating.
After adopting said structure, owing to also be provided with low emissivity glass in the backlight side of thin-film solar cells, thus make the thermal radiation of thin-film solar cells generation be stopped by low emissivity glass, thus make thermal radiation to enter, thus had heat insulation effect.Further, owing to also increased hollow structure between this low emissivity glass and this thin-film solar cells, this hollow structure can increase the soundproof effect of whole thin-film solar cells.
Description of drawings
Fig. 1 is the structural representation of heat insulation type film solar battery structure first embodiment that the present invention relates to;
Fig. 2 is the structural representation of heat insulation type film solar battery structure second embodiment that the present invention relates to;
Fig. 3 is the structural representation of heat insulation type film solar battery structure the 3rd embodiment that the present invention relates to;
Fig. 4 is the structural representation of heat insulation type film solar battery structure the 4th embodiment that the present invention relates to;
Fig. 5 is the structural representation of heat insulation type film solar battery structure the 5th embodiment that the present invention relates to;
Fig. 6 is the structural representation of heat insulation type film solar battery structure the 6th embodiment that the present invention relates to;
Fig. 7 is the structural representation of heat insulation type film solar battery structure the 7th embodiment that the present invention relates to.
Among the figure:
Solar battery structure 100 glass 1
Electrode 2 films 3
Bead layer 4 hollow structures 5
Interval box 51 cavitys 52
Sealant 6 low-radiation film layers 7
Simple glass 8 intermediate coats 9
Bead layer 10 glass substrates 11
Antireflective coating 12
Embodiment
In order further to explain technical scheme of the present invention, the present invention will be described in detail below by specific embodiment.
As shown in Figure 1 be the structural representation of first embodiment of the invention, a kind of heat insulation type film solar battery structure 100, comprise thin-film solar cells and low emissivity glass, this low emissivity glass links to each other with this thin-film solar cells, and is arranged on the backlight side of this thin-film solar cells.Concrete, this low emissivity glass can realize for cover one deck low-radiation film layer 7 on simple glass 8, and this thin-film solar cells then comprises glass 1 and one deck or multilayer and the film 3 that forms in glass 1 surface deposition CdTe/CdS (cadmium telluride), CIS (copper indium diselenide), CIGS (copper indium diselenide gallium), A-Si (unijunction amorphous silicon), a-si/a-si (double junction non-crystal silicon), a-si/uc-si (amorphous adds the crystallite lamination), three junction amorphous silicons.It is 〉=75% plate glass that glass 1 wherein can adopt transmitance, and it also can adopt other glass to replace certainly, as organic glass etc.After this film 3 formed by deposition materials, the back portion of this film 3 adopted the mode of mask method, sandblast or mechanical lapping to carry out limit processing clearly, and the width that handle on this clear limit can be at 5~30mm.These film 3 surfaces are also by the welding of ultrasonic bonding, electric iron or have the sticking card of tin copper strips that is coated with of conducting resinl to form width be that 1~15mm, thickness are the metallic conduction band of 0.02~5mm, this metallic conduction band is to be coated with a kind of in tin copper strips, interconnector or the busbar, and the electrode 2 of this thin-film solar cells is drawn in the limit of hull cell portion or in the hole or the bight of back glass.The limit portion of this glass 1 is round edge, hypotenuse or the straight flange that mechanical lapping forms, and the bight of glass forms safety angle for grinding.This thin-film solar cells phototropic face also deposits and is formed with one deck or above antireflective coating 12.This antireflective coating 12 can improve transmitance to 380~1100nm wave-length coverage and realize that conversion efficiency increases, reduced outer surface dazzle or light pollution simultaneously, also can form the pattern that some shades of colours that can satisfy indoor appreciation form by printing or spraying on the surface of low emissivity glass.
In first embodiment, also be formed with hollow structure 5 between this low emissivity glass and this thin-film solar cells, this hollow structure 5 comprises cavity 52 and interval box 51, the gas that is filled with air, argon gas, krypton gas in this cavity 52 or mixes mutually, blanketing gas can reduce cross-ventilation and cause the thermal radiation acceleration in this cavity 52, and this hollow structure can also increase the sound insulation value of whole thin-film solar cells; 51 of this interval box can be selected from the synthetic warm limit spacer bar of aluminium spacer bar, stainless steel spacer bar, thermosetting polyester spacer bar, polypropylene and stainless steel between 5~30mm, should can reduce the heat conduction of thin-film solar cells upper glass 1 in indoor sheet glass by warm limit spacer bar, the desiccant molecular sieve of can will be carried out after the spacer bar bending, this hollow structure 5 also comprises with butyl rubber etc. and coheres the bead layer 4 of glue to the interval box edge sealing, and the sealant 6 that slit between low emissivity glass and the glass is sealed with structural silicone adhesive or poly-sulphur glue etc.Thereby can be good at preventing extraneous aqueous vapor from entering and influence the performance of thin-film solar cells.
As shown in Figure 2 be the structural representation of second embodiment of the invention, need to prove, the composition that thin-film solar cells is concrete among second embodiment is all identical with first embodiment with manufacture process etc., just do not give unnecessary details at this, following emphasis is described the difference of second embodiment and first embodiment, this heat insulation type film solar battery structure also includes intermediate coat 9 and glass substrate 11, this intermediate coat 9 is attached on the glass substrate 11, this intermediate coat 9 is the transparent PVB of 0.2~50mm by one deck or above and thickness, EVA, SGP, the PU material is made, need to prove, this PVB, EVA, SGP, the PU material is this area material commonly used, and wherein the main component of PVB is a polyvinyl butyral resin; EVA then be second rare-the rare copolymer of acetic acid second; SGP is meant SentryGlas plus, i.e. the ionomer intermediate coat; PU then is meant polyurethanes, is called for short polyurethane; This intermediate coat 9 is mainly used in further prevention heat and enters within doors and stop ultraviolet ray to enter within doors, in second embodiment of the invention, this glass substrate 11 and intermediate coat 9 are arranged on a side backlight of non-browning glass, it is the right side in shown in Figure 2, enter for fear of aqueous vapor etc. and have influence on the performance of intermediate coat 9, form bead layer 10 by edge sealing adhesive between the simple glass 8 of this glass substrate 11 and low emissivity glass and seal and be hedged off from the outer world, the edge sealing adhesive that forms this bead layer 10 is butyl rubber or polyurethane.This glass substrate 11 can adopt any glass, be preferably the ultra-white float glass of the common float glass of 2.8~15mm, low iron-holder or the glass that strengthens by heat treatment, at this moment, draw in the intermediate coat of electrode 2 between hull cell and clear glass of this thin-film solar cells, the electrode serial or parallel connection in the film that is clipped in the middle is to realize by the horizontal direction of adjusting every Battery pack.
As shown in Figure 3 be the structural representation of third embodiment of the invention, need to prove, composition that thin-film solar cells is concrete among the 3rd embodiment and manufacture process etc. all with first embodiment, second embodiment is identical, just do not give unnecessary details at this, following emphasis is described the characteristics of the 3rd embodiment, in the 3rd embodiment, this heat insulation type film solar battery structure also includes intermediate coat 9 and glass substrate 11, different with second embodiment is, this intermediate coat 9 and glass substrate 11 are arranged between thin-film solar cells glass and the low emissivity glass, promptly this intermediate coat 9 is contiguous with the film 3 in the thin-film solar cells, and forms bead layer 10 sealings and with external isolated owing to need avoid aqueous vapor to enter by edge sealing adhesives such as butyl rubber or polyurethane between this glass substrate 11 and the thin-film solar cells glass 1.At this moment, then form the hollow structure 5 among first embodiment between this low emissivity glass and the glass substrate, the same among the concrete structure of this hollow structure 5 and first embodiment be not so repeat them here.
As shown in Figure 4 be the structural representation of fourth embodiment of the invention, need to prove, composition that thin-film solar cells is concrete among the 4th embodiment and manufacture process etc. all with first embodiment, the 3rd embodiment is identical, just do not give unnecessary details at this, following emphasis is described the characteristics of the 4th embodiment, film 3 is all different with the structure of previous embodiment in this thin-film solar cells, specifically after forming the film 3 of previous embodiment, the mode of this film 3 by laser scribing forms the semi-transparency type that 0.5%~90% proportional region sees through outdoor light with linear or grid-like the removing.
As Fig. 5, Fig. 6 and the fifth embodiment of the invention that is respectively shown in Figure 7, the structural representation of the 6th embodiment and the 7th embodiment, need to prove, the 5th embodiment, the 6th embodiment specifically forms all identical with the 4th embodiment with manufacture process with the thin-film solar cells among the 7th embodiment, in the 5th embodiment, it is for increasing one deck intermediate coat again on the basis of the 4th embodiment, and among the 6th embodiment, it is for increasing one deck low emissivity glass again on the basis of the 4th embodiment, and among the 7th embodiment, it then is to have increased one deck intermediate coat again on the basis of the 6th embodiment, and the utility model can also be set up more intermediate coat and low emissivity glass according to actual needs certainly.
In order further to express the beneficial effect of the present invention with respect to prior art, adopt Chinese patent application number 200720049079.2 disclosed amorphous silicon photovoltaic architecture-integrals and the present invention to compare below, under two airtight casings and same irradiation of sunlight condition, adopting temperature measurer to measure surface temperature is 42 ℃, the hull-skin temperature of non-crystal silicon thin-film solar cell component is 45.8 ℃, and the internal surface temperature of non-crystal silicon thin-film solar cell component is 45.2 ℃.And the heat insulation type film solar battery structure of this utility model hull-skin temperature be 40.4 ℃, internal surface temperature is 32.8 ℃, more specifically, the hull-skin temperature of embodiment one shown in Figure 1 is 40.4 ℃, internal surface temperature is 32.8 ℃; The hull-skin temperature of embodiment two shown in Figure 2 is 40.3 ℃, and internal surface temperature is 30.2 ℃; The hull-skin temperature of embodiment three shown in Figure 3 is 40.3 ℃, and internal surface temperature is 29.8 ℃; The hull-skin temperature of embodiment four shown in Figure 4 is 40.3 ℃, and internal surface temperature is 30.7 ℃; The hull-skin temperature of embodiment five shown in Figure 5 is 40.3 ℃, and internal surface temperature is 29.1 ℃; The hull-skin temperature of embodiment six shown in Figure 6 is 40.3 ℃, and internal surface temperature is 28.6 ℃; The hull-skin temperature of embodiment seven shown in Figure 7 is 40.3 ℃, and internal surface temperature is 27.7 ℃.The visible secondary thermal radiation of above data causes needs to strengthen the running power of air-conditioning to sharply rising because of the secondary thermal radiation causes indoor temperature in conduction importance, the especially summer of indoor temperature, has reduced personnel's comfortableness simultaneously.And the heat insulation type film solar battery structure that adopts this patent scheme is enough to characterize the superiority of the heat-proof quality of heat insulation type film solar battery structure by the above measured data that draw.
In order to further specify performance of the present invention, adopt the 3rd embodiment shown in Figure 3 specifically to implement below, concrete parameter is as follows: adopt 5mm to see through the structure that area is amorphous silicon thin-film solar cell glass+1.52PVB+5m clear glass+16A spacer bar (filling 90% argon gas)+transparent reinforcing glass of 5m of 20%, with reference to ISO9050-2003 " building glass visible transmission ratio, the direct transmittance of sunlight, total solar energy transmittance, ultraviolet (uv) transmission is the mensuration of relevant glass pane parameter when ", GB/T 2680-1994 " building glass visible transmission ratio, the direct transmittance of sunlight, total solar energy transmittance, the mensuration of the when relevant glass pane parameter of ultraviolet (uv) transmission " standard testing is that the ultraviolet spectrophotometer of Lambda-950 is measured with WINDOW 5 computed in software and drawn following data by Perkin elmer company unit type.
From above-mentioned data as can be seen the present invention have heat-proof quality preferably.
The foregoing description and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present invention to its suitable variation or modification of doing.