CN209822666U - Photovoltaic module with reflective membrane - Google Patents
Photovoltaic module with reflective membrane Download PDFInfo
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- CN209822666U CN209822666U CN201920627074.6U CN201920627074U CN209822666U CN 209822666 U CN209822666 U CN 209822666U CN 201920627074 U CN201920627074 U CN 201920627074U CN 209822666 U CN209822666 U CN 209822666U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
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Abstract
The utility model discloses a photovoltaic module with reflective membrane, including apron, bottom plate, battery piece, the battery piece is 2 pieces at least and sets up between apron, the bottom plate, be formed with the printing opacity clearance between the battery piece, still include the reflective membrane, the reflective membrane sets up in the printing opacity clearance, the reflective membrane is including reflector layer, micro-structure layer, substrate layer from top to bottom, the reflective membrane still includes gluing agent layer, gluing agent layer sets up the substrate layer with between the bottom plate or the reflector layer with between the apron, be provided with 1 at least triangular prism on the micro-structure layer. The utility model discloses reduce the sunlight loss on the printing opacity clearance among the photovoltaic module, improved the solar energy utilization ratio.
Description
Technical Field
The utility model relates to a photovoltaic module especially relates to a photovoltaic module with reflective membrane.
Background
Solar photovoltaic is a novel energy source with the widest development prospect, is green, environment-friendly and can be used continuously, under the promotion of huge potential of the international photovoltaic market, solar cell manufacturing industries of all countries strive for huge investment and production expansion to strive for a place, wherein the improvement of photovoltaic conversion efficiency becomes the central importance of all countries, through development for many years, the improvement of the efficiency of a cell plate per se is more difficult, and the research direction of all countries is shifted to other directions such as light condensation, light reflection and the like. Because the cells must be spaced apart a certain distance when being arranged, gaps between the cells will cause the sunlight utilization rate to be reduced. The coverage area is about 4% or more of the total cell area, which corresponds to a loss of 4% of the total solar energy utilization output.
At present, in order to effectively utilize sunlight in a cell gap, two main solutions are available: the first is for using white high anti-EVA, through laying the high anti-EVA of one deck white at the battery piece lower extreme, reaches the purpose of reflection light, when the incident light incides high anti-EVA layer, reflects the sunlight secondary again to battery piece surface around after the specular reflection of high anti-EVA, the refraction of glass and air to improve the utilization ratio of incident light. But this kind of white high anti-EVA exists with high costs, resource wasting scheduling problem, the second kind is simple reflective membrane, paste in the middle of the battery piece clearance and cover a reflection of light strip that has the triangular prism structure, the structure crest line is along welding tape length direction, but this kind of reflection of light strip simple structure, inefficiency, the reverberation area is limited, partial light reflects outside the photovoltaic cell, under different sunlight incident angles, be difficult to obtain maximum conversion efficiency, and paste and cover the skew occasionally, the low scheduling problem of utilization ratio, need make the improvement to this.
Disclosure of Invention
The utility model discloses photovoltaic module reflection inefficiency to existence among the prior art, defect such as solar energy conversion inefficiency provides a new photovoltaic module with reflective membrane.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
the utility model provides a photovoltaic module with reflective membrane, includes apron, bottom plate, battery piece, the battery piece is 2 pieces at least and sets up between apron, the bottom plate, be formed with the printing opacity clearance between the battery piece, still include reflective membrane, reflective membrane sets up in the printing opacity clearance, reflective membrane is including from top to bottom reflector layer, micro-structure layer, substrate layer, reflective membrane still includes gluing agent layer, gluing agent layer sets up the substrate layer with between the bottom plate or the reflector layer with between the apron, be provided with 1 at least triangular prism on the micro-structure layer.
The bottom plate is arranged at the bottom of the photovoltaic assembly and is used for being matched with the cover plate to realize sealing, insulating and waterproof effects, the cover plate is arranged at the upper part of the photovoltaic assembly and is required to have high light transmission, the battery pieces are used for converting solar energy into electric energy to realize the power generation effect of the photovoltaic assembly, the light transmission gaps formed among the battery pieces reduce the conversion efficiency of the photovoltaic assembly, the reflecting film is arranged in the light transmission gaps to improve the reflection efficiency and the solar energy conversion efficiency of the photovoltaic assembly, the adhesive layer is used for bonding the reflecting film on the cover plate or connecting the reflecting film on the bottom plate to realize the connection of the reflecting film and the photovoltaic assembly, the reflecting effect of the reflecting film is ensured, the condition that the reflecting film deviates is avoided, at least 1 triangular prism is arranged on the substrate layer and is used for being matched with the reflecting layer to reflect sunlight with different incidence angles onto the battery pieces through the triangular prism, and the loss of, the solar energy utilization rate is improved.
Preferably, in the photovoltaic module with a reflective film described above, an included angle between the extending direction of the triangular prism inclined plane and the extending direction of the substrate layer is 30 ~ 60 °.
With triangular prism inclined plane extending direction with the contained angle of substrate layer extending direction sets up to 30 ~ 60, can further guarantee that the sunlight homoenergetic of different incident directions can reflect to the battery piece on, improves the solar energy utilization ratio.
Preferably, in the photovoltaic module with a reflective film, the cross section of the triangular prism is an isosceles triangle, and the vertex angle of the isosceles triangle is 100 ~ 120 °.
The apex angle of the section of the triangular prism is set to be 100 ~ 120 degrees, the compression resistance and lodging resistance of the reflective film can be enhanced, the light source is prevented from being reflected out of the cover plate, and the solar energy utilization rate is improved.
Preferably, in the photovoltaic module with the reflective film, the vertex angle of the isosceles triangle is a closed angle.
The apex angle of isosceles triangle is the closed angle, can further strengthen the resistance to compression lodging ability of reflective membrane, improves reflective membrane's reflection of light efficiency.
Preferably, in the photovoltaic module with a reflective film, the vertex angle of the isosceles triangle is an arc angle, the radius of the arc angle is R, and R is 0.5 ~ 2 μm.
The vertex angle of the isosceles triangle is an arc angle, and the radius of the arc angle is set to be 0.5 ~ 2 mu m, so that the compression resistance and lodging resistance of the reflective film can be further enhanced, the light source is prevented from being reflected out of the cover plate in the original way, and the solar energy utilization rate is improved.
Preferably, the photovoltaic module with reflective membrane, the triangular prism forms a circulation every 1mm ~ 2mm, is located the triangular prism at circulation both ends is higher than and is located the triangular prism at circulation middle part, is located the triangular prism height at circulation both ends is 20 ~ 30um, is located the triangular prism height at circulation middle part is 15 ~ 25 um.
The triangular prism forms a circulation per 1mm ~ 2mm and carries out periodic arrangement, and its effect is the width of extension reflective membrane, satisfies photovoltaic module's the requirement that sets up to furthest's improvement cell's effective area improves the solar energy conversion rate.
Preferably, in the photovoltaic module with the reflective film, the substrate layer is made of polycarbonate, polyethylene terephthalate, polyamide resin, polystyrene, polyethylene or polymethyl methacrylate, and the microstructure layer is made of acrylic resin.
Above-mentioned material is chooseed for use to the substrate layer material, can guarantee that the reflective membrane has certain stiffness, has high luminousness simultaneously, improves the reflection of light efficiency of reflective membrane.
Preferably, the photovoltaic module with the reflective film is provided with the antistatic coating on the upper surface and the lower surface of the adhesive layer.
Antistatic coating is used for preventing that the battery piece from producing electron and running off to reduce the availability factor, antistatic coating makes gluing agent layer have high adsorption efficiency simultaneously, thereby makes the reflective membrane can direct absorption on the EVA top layer of bottom plate or apron, reduces the skew risk of reflective membrane.
Preferably, in the photovoltaic module with the reflective film, the reflective layer is an aluminum-plated layer.
The aluminum-plated layer is selected for use as the reflective layer, so that the production cost can be effectively reduced, the reflective film is ensured to have higher light reflectivity, and the reflection effect is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the adhesive layer disposed between the substrate layer and the bottom plate according to the present invention;
fig. 3 is a schematic structural view of the middle adhesive layer of the present invention disposed between the reflective layer and the cover plate.
Detailed Description
The invention will be described in further detail with reference to the accompanying figures 1-3 and the detailed description, but they are not intended to limit the invention:
example 1
The utility model provides a photovoltaic module with reflective membrane, includes apron 1, bottom plate 3, battery piece 2 is 2 pieces at least and sets up between apron 1, the bottom plate 3, be formed with printing opacity clearance 5 between the battery piece 2, still include reflective membrane 4, reflective membrane 4 sets up in the printing opacity clearance 5, reflective membrane 4 is including from top to bottom reflector layer 43, micro-structure layer 42, substrate layer 45, reflective membrane 4 still includes gluing agent layer 44, gluing agent layer 44 sets up substrate layer 45 with between the bottom plate 3 or reflecting layer 43 with between the apron 1, be provided with 1 at least triangular prism 41 on the micro-structure layer 42.
Preferably, an angle between the extending direction of the inclined surface of the triangular prism 41 and the extending direction of the base material layer 45 is 30 °.
Preferably, the triangular prism 41 has a cross section of an isosceles triangle, and the vertex angle of the isosceles triangle is 100 °.
Preferably, the vertex angle of the isosceles triangle is a sharp angle.
Preferably, the vertex angle of the isosceles triangle is an arc angle, the radius of the arc angle is R, and R is 0.5 μm.
Preferably, the triangular prism 41 forms a circulation every 1mm, and is located the triangular prism 41 at the circulation both ends is higher than the triangular prism 41 at the circulation middle part, is located the triangular prism 41 at the circulation both ends is highly 20um, is located the triangular prism 41 at the circulation middle part is highly 15 um.
Preferably, the material of the substrate layer 45 is polycarbonate, polyethylene terephthalate, polyamide resin, polystyrene, polyethylene or polymethyl methacrylate, and the material of the microstructure layer 42 is acrylic resin.
Preferably, the upper and lower surfaces of the adhesive layer 44 are provided with antistatic coatings.
Preferably, the light reflecting layer 43 is an aluminum plating layer.
Example 2
The utility model provides a photovoltaic module with reflective membrane, includes apron 1, bottom plate 3, battery piece 2 is 2 pieces at least and sets up between apron 1, the bottom plate 3, be formed with printing opacity clearance 5 between the battery piece 2, still include reflective membrane 4, reflective membrane 4 sets up in the printing opacity clearance 5, reflective membrane 4 is including from top to bottom reflector layer 43, micro-structure layer 42, substrate layer 45, reflective membrane 4 still includes gluing agent layer 44, gluing agent layer 44 sets up substrate layer 45 with between the bottom plate 3 or reflecting layer 43 with between the apron 1, be provided with 1 at least triangular prism 41 on the micro-structure layer 42.
Preferably, an angle between the extending direction of the inclined surface of the triangular prism 41 and the extending direction of the base material layer 45 is 45 °.
Preferably, the triangular prism 41 has a cross section of an isosceles triangle, and the vertex angle of the isosceles triangle is 100 °.
Preferably, the vertex angle of the isosceles triangle is a sharp angle.
Preferably, the vertex angle of the isosceles triangle is an arc angle, the radius of the arc angle is R, and R is 1.25 μm.
Preferably, the triangular prism 41 forms a circulation every 1mm, and is located the triangular prism 41 at the circulation both ends is higher than the triangular prism 41 at the circulation middle part, is located the triangular prism 41 at the circulation both ends is highly 25um, is located the triangular prism 41 at the circulation middle part is highly 15 um.
Preferably, the material of the substrate layer 45 is polycarbonate, polyethylene terephthalate, polyamide resin, polystyrene, polyethylene or polymethyl methacrylate, and the material of the microstructure layer 42 is acrylic resin.
Preferably, the upper and lower surfaces of the adhesive layer 44 are provided with antistatic coatings.
Preferably, the light reflecting layer 43 is an aluminum plating layer.
Example 3
The utility model provides a photovoltaic module with reflective membrane, includes apron 1, bottom plate 3, battery piece 2 is 2 pieces at least and sets up between apron 1, the bottom plate 3, be formed with printing opacity clearance 5 between the battery piece 2, still include reflective membrane 4, reflective membrane 4 sets up in the printing opacity clearance 5, reflective membrane 4 is including from top to bottom reflector layer 43, micro-structure layer 42, substrate layer 45, reflective membrane 4 still includes gluing agent layer 44, gluing agent layer 44 sets up substrate layer 45 with between the bottom plate 3 or reflecting layer 43 with between the apron 1, be provided with 1 at least triangular prism 41 on the micro-structure layer 42.
Preferably, an angle between an extending direction of the inclined surface of the triangular prism 41 and an extending direction of the base material layer 45 is 60 °.
Preferably, the triangular prism 41 has a cross section of an isosceles triangle, and the vertex angle of the isosceles triangle is 110 °.
Preferably, the vertex angle of the isosceles triangle is a sharp angle.
Preferably, the vertex angle of the isosceles triangle is an arc angle, the radius of the arc angle is R, and R is 2 μm.
Preferably, the triangular prism 41 forms a cycle every 1.5mm, and the triangular prisms 41 located at both ends of the cycle are higher than the triangular prism 41 located at the middle of the cycle, and the triangular prisms 41 located at both ends of the cycle are 30um high, and the triangular prism 41 located at the middle of the cycle is 20um high.
Preferably, the material of the substrate layer 45 is polycarbonate, polyethylene terephthalate, polyamide resin, polystyrene, polyethylene or polymethyl methacrylate, and the material of the microstructure layer 42 is acrylic resin.
Preferably, the upper and lower surfaces of the adhesive layer 44 are provided with antistatic coatings.
Preferably, the light reflecting layer 43 is an aluminum plating layer.
Example 4
The utility model provides a photovoltaic module with reflective membrane, includes apron 1, bottom plate 3, battery piece 2 is 2 pieces at least and sets up between apron 1, the bottom plate 3, be formed with printing opacity clearance 5 between the battery piece 2, still include reflective membrane 4, reflective membrane 4 sets up in the printing opacity clearance 5, reflective membrane 4 is including from top to bottom reflector layer 43, micro-structure layer 42, substrate layer 45, reflective membrane 4 still includes gluing agent layer 44, gluing agent layer 44 sets up substrate layer 45 with between the bottom plate 3 or reflecting layer 43 with between the apron 1, be provided with 1 at least triangular prism 41 on the micro-structure layer 42.
Preferably, an angle between the extending direction of the inclined surface of the triangular prism 41 and the extending direction of the base material layer 45 is 30 °.
Preferably, the triangular prism 41 has a cross section of an isosceles triangle, and the vertex angle of the isosceles triangle is 110 °.
Preferably, the vertex angle of the isosceles triangle is a sharp angle.
Preferably, the vertex angle of the isosceles triangle is an arc angle, the radius of the arc angle is R, and R is 0.5 μm.
Preferably, the triangular prism 41 forms a cycle every 1.5mm, and the triangular prisms 41 located at both ends of the cycle are higher than the triangular prism 41 located at the middle of the cycle, and the triangular prisms 41 located at both ends of the cycle are 20um high, and the triangular prism 41 located at the middle of the cycle is 20um high.
Preferably, the material of the substrate layer 45 is polycarbonate, polyethylene terephthalate, polyamide resin, polystyrene, polyethylene or polymethyl methacrylate, and the material of the microstructure layer 42 is acrylic resin.
Preferably, the upper and lower surfaces of the adhesive layer 44 are provided with antistatic coatings.
Preferably, the light reflecting layer 43 is an aluminum plating layer.
Example 5
The utility model provides a photovoltaic module with reflective membrane, includes apron 1, bottom plate 3, battery piece 2 is 2 pieces at least and sets up between apron 1, the bottom plate 3, be formed with printing opacity clearance 5 between the battery piece 2, still include reflective membrane 4, reflective membrane 4 sets up in the printing opacity clearance 5, reflective membrane 4 is including from top to bottom reflector layer 43, micro-structure layer 42, substrate layer 45, reflective membrane 4 still includes gluing agent layer 44, gluing agent layer 44 sets up substrate layer 45 with between the bottom plate 3 or reflecting layer 43 with between the apron 1, be provided with 1 at least triangular prism 41 on the micro-structure layer 42.
Preferably, an angle between the extending direction of the inclined surface of the triangular prism 41 and the extending direction of the base material layer 45 is 45 °.
Preferably, the triangular prism 41 has a cross section of an isosceles triangle, and the vertex angle of the isosceles triangle is 120 °.
Preferably, the vertex angle of the isosceles triangle is a sharp angle.
Preferably, the vertex angle of the isosceles triangle is an arc angle, the radius of the arc angle is R, and R is 1.25 μm.
Preferably, the triangular prism 41 forms a circulation every 2mm, is located the triangular prism 41 at circulation both ends is higher than being located the triangular prism 41 at circulation middle part, is located the triangular prism 41 at circulation both ends is highly 25um, is located the triangular prism 41 at circulation middle part is highly 25 um.
Preferably, the material of the substrate layer 45 is polycarbonate, polyethylene terephthalate, polyamide resin, polystyrene, polyethylene or polymethyl methacrylate, and the material of the microstructure layer 42 is acrylic resin.
Preferably, the upper and lower surfaces of the adhesive layer 44 are provided with antistatic coatings.
Preferably, the light reflecting layer 43 is an aluminum plating layer.
Example 6
The utility model provides a photovoltaic module with reflective membrane, includes apron 1, bottom plate 3, battery piece 2 is 2 pieces at least and sets up between apron 1, the bottom plate 3, be formed with printing opacity clearance 5 between the battery piece 2, still include reflective membrane 4, reflective membrane 4 sets up in the printing opacity clearance 5, reflective membrane 4 is including from top to bottom reflector layer 43, micro-structure layer 42, substrate layer 45, reflective membrane 4 still includes gluing agent layer 44, gluing agent layer 44 sets up substrate layer 45 with between the bottom plate 3 or reflecting layer 43 with between the apron 1, be provided with 1 at least triangular prism 41 on the micro-structure layer 42.
Preferably, an angle between an extending direction of the inclined surface of the triangular prism 41 and an extending direction of the base material layer 45 is 60 °.
Preferably, the triangular prism 41 has a cross section of an isosceles triangle, and the vertex angle of the isosceles triangle is 120 °.
Preferably, the vertex angle of the isosceles triangle is a sharp angle.
Preferably, the vertex angle of the isosceles triangle is an arc angle, the radius of the arc angle is R, and R is 2 μm.
Preferably, the triangular prism 41 forms a circulation every 2mm, is located the triangular prism 41 at circulation both ends is higher than being located the triangular prism 41 at circulation middle part, is located the triangular prism 41 at circulation both ends is highly for 30um, is located the triangular prism 41 at circulation middle part is highly for 25 um.
Preferably, the material of the substrate layer 45 is polycarbonate, polyethylene terephthalate, polyamide resin, polystyrene, polyethylene or polymethyl methacrylate, and the material of the microstructure layer 42 is acrylic resin.
Preferably, the upper and lower surfaces of the adhesive layer 44 are provided with antistatic coatings.
Preferably, the light reflecting layer 43 is an aluminum plating layer.
In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.
Claims (9)
1. The utility model provides a photovoltaic module with reflective membrane, includes apron (1), bottom plate (3), battery piece (2) are 2 pieces at least and set up between apron (1), bottom plate (3), be formed with printing opacity clearance (5), its characterized in that between battery piece (2): still include reflective membrane (4), reflective membrane (4) set up in printing opacity clearance (5), reflective membrane (4) are including from top to bottom reflector layer (43), micro-structure layer (42), substrate layer (45), reflective membrane (4) still include gluing agent layer (44), gluing agent layer (44) set up substrate layer (45) with between bottom plate (3) or reflector layer (43) with between apron (1), be provided with 1 at least triangular prism (41) on micro-structure layer (42).
2. The photovoltaic module with the reflective film as claimed in claim 1, wherein the included angle between the extending direction of the inclined surface of the triangular prism (41) and the extending direction of the substrate layer (45) is 30 ~ 60 °.
3. The photovoltaic module with the reflective film as claimed in claim 2, wherein the triangular prism (41) has a cross section of an isosceles triangle shape, and the vertex angle of the isosceles triangle shape is 100 ~ 120 °.
4. The photovoltaic module provided with the reflective film according to claim 3, wherein: the vertex angle of the isosceles triangle is a closed angle.
5. The photovoltaic module with the reflective film as claimed in claim 3, wherein the vertex angle of the isosceles triangle is an arc angle, the radius of the arc angle is R, and R is 0.5 ~ 2 μm.
6. The photovoltaic module provided with the reflective film according to claim 1, wherein the triangular pillars (41) form a cycle every 1mm ~ 2mm, the triangular pillars (41) at two ends of the cycle are higher than the triangular pillars (41) at the middle of the cycle, the height of the triangular pillars (41) at two ends of the cycle is 20 ~ 30um, and the height of the triangular pillars (41) at the middle of the cycle is 15 ~ 25 um.
7. The photovoltaic module provided with the reflective film according to claim 1, wherein: the material of the substrate layer (45) is polycarbonate or polyethylene terephthalate or polyamide resin or polystyrene or polyethylene or polymethyl methacrylate, and the material of the microstructure layer (42) is acrylic resin.
8. The photovoltaic module provided with the reflective film according to claim 1, wherein: and antistatic coatings are arranged on the upper surface and the lower surface of the adhesive layer (44).
9. The photovoltaic module provided with the reflective film according to claim 1, wherein: the reflecting layer (43) is an aluminum plating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920627074.6U CN209822666U (en) | 2019-05-05 | 2019-05-05 | Photovoltaic module with reflective membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920627074.6U CN209822666U (en) | 2019-05-05 | 2019-05-05 | Photovoltaic module with reflective membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209822666U true CN209822666U (en) | 2019-12-20 |
Family
ID=68882439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920627074.6U Active CN209822666U (en) | 2019-05-05 | 2019-05-05 | Photovoltaic module with reflective membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209822666U (en) |
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2019
- 2019-05-05 CN CN201920627074.6U patent/CN209822666U/en active Active
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