CN109244168B - High heat dissipation type solar photovoltaic backboard and manufacturing equipment thereof - Google Patents
High heat dissipation type solar photovoltaic backboard and manufacturing equipment thereof Download PDFInfo
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- CN109244168B CN109244168B CN201811138399.4A CN201811138399A CN109244168B CN 109244168 B CN109244168 B CN 109244168B CN 201811138399 A CN201811138399 A CN 201811138399A CN 109244168 B CN109244168 B CN 109244168B
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- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 65
- 238000002310 reflectometry Methods 0.000 claims abstract description 22
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 32
- 238000001816 cooling Methods 0.000 claims description 20
- 239000012792 core layer Substances 0.000 claims description 13
- 229920000098 polyolefin Polymers 0.000 claims description 11
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 11
- 239000002033 PVDF binder Substances 0.000 claims description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- -1 polyethylene terephthalate Polymers 0.000 claims description 2
- 230000007062 hydrolysis Effects 0.000 abstract description 6
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 description 4
- 206010051246 Photodermatosis Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008845 photoaging Effects 0.000 description 3
- 238000001579 optical reflectometry Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a high heat dissipation type solar photovoltaic backplate, includes the backplate sandwich layer, is located the inboard white reflection layer of backplate sandwich layer one side and is located the outside black dispersed thermal layer of backplate sandwich layer opposite side, inboard white reflection layer is by white high reflectivity modified material preparation, outside black heat dissipation layer is by the black nano-filling modified material preparation of high heat dissipation type. So has excellent heat dissipation function, excellent hydrolysis resistance, light aging resistance and water vapor barrier property, and the manufacturing process is simple, and the power generation efficiency is high. The invention further provides manufacturing equipment of the high-heat-dissipation type solar photovoltaic backboard.
Description
Technical Field
The invention relates to the technical field of photovoltaics, in particular to a high-heat-dissipation type solar photovoltaic backboard and manufacturing equipment thereof.
Background
The power generated by the solar photovoltaic module is sensitive to temperature, and the power generated by the solar photovoltaic module is attenuated by 0.4% when the temperature rises by 1 ℃, so that the heat dissipation of the back plate has an important influence on the performance of the photovoltaic module.
The back plate of the existing photovoltaic module is a back film formed by PVF (polyvinyl fluoride film) -PET (polyester film) -PVF three-layer film, namely TPT for short, wherein the PVF of the outer (air side) protective layer has good environmental erosion resistance, the PET of the middle layer has good insulating property, and the PVF of the inner side has good bonding property after surface treatment and EVA.
However, the solar back panel adopting the TPT structure has poor heat dissipation performance because the PET material is not resistant to hydrolysis and photo-aging. The light reflectivity of the inner side of the backboard is 75-80%, the heat dissipation performance of the air side of the backboard is weak, and the heat conductivity coefficient of the backboard is smaller than 0.5W/m 2 C.
Disclosure of Invention
In view of the above, the present invention provides a high heat dissipation type solar photovoltaic back sheet and a back sheet core layer manufacturing apparatus with excellent heat dissipation function, excellent hydrolysis resistance, photo aging resistance, water vapor barrier property, simple manufacturing process and high power generation efficiency, so as to solve the above problems.
The utility model provides a high heat dissipation type solar photovoltaic backplate, includes the backplate sandwich layer, is located the inboard white reflection layer of backplate sandwich layer one side and is located the outside black dispersed thermal layer of backplate sandwich layer opposite side, inboard white reflection layer is by white high reflectivity modified material preparation, outside black heat dissipation layer is by the black nano-filling modified material preparation of high heat dissipation type.
Further, the white high-reflectivity modified material is a high-reflectivity polyolefin modified material, a high-reflectivity polyvinyl fluoride material or a high-reflectivity polyvinylidene fluoride material.
Further, the black nano filling modified material is black nano filling nylon modified material, black nano filling modified polyolefin material, black nano filling modified polyvinyl fluoride material or black nano filling modified polyvinylidene fluoride material.
Further, the backsheet core layer is made of a polyolefin copolymer.
Further, the thickness of the inner white reflecting layer is 10-100 micrometers, and the thickness of the outer black heat dispersion layer is 10-100 micrometers.
The utility model provides a preparation equipment of high heat dissipation formula solar photovoltaic backplate, includes extruder, pressure roller, chill roll, a plurality of driving roller, rolling unit and shaping material way, the extruder has upper portion feed chamber, is located the middle part feed chamber of upper portion feed chamber below and is located the lower part feed chamber of middle part feed chamber below to and set up in the one end of extruder and with the shaping die head of upper portion feed chamber, middle part feed chamber and equal intercommunication of lower part feed chamber, shaping material way level sets up in the below of shaping die head, pressure roller and chill roll set up relatively, and have the clearance between pressure roller and the chill roll, a plurality of driving rollers set up between chill roll and the rolling unit, the chill roll is inside to have cooling device.
Further, the upper feed cavity is provided with a black nano-filler modifying material, the middle feed cavity is provided with a polyolefin copolymer, and the lower feed cavity is provided with a white high-reflectivity modifying material.
Compared with the prior art, the high-heat-dissipation solar photovoltaic backboard comprises a backboard core layer, an inner white reflecting layer positioned on one side of the backboard core layer and an outer black heat-dissipation layer positioned on the other side of the backboard core layer, wherein the inner white reflecting layer is made of a white high-reflectivity modified material, and the outer black heat-dissipation layer is made of a high-heat-dissipation black nano filling modified material. So has excellent heat dissipation function, excellent hydrolysis resistance, light aging resistance and water vapor barrier property, and the manufacturing process is simple, and the power generation efficiency is high. The invention further provides manufacturing equipment of the high-heat-dissipation type solar photovoltaic backboard.
Drawings
Embodiments of the invention are described below with reference to the accompanying drawings, in which:
Fig. 1 is a side sectional view of a high heat dissipation type solar photovoltaic back sheet provided by the present invention.
Fig. 2 is a schematic diagram of a manufacturing apparatus of a high heat dissipation type solar photovoltaic back sheet according to the present invention.
Detailed Description
Specific embodiments of the present invention will be described in further detail below based on the drawings. It should be understood that the description herein of the embodiments of the invention is not intended to limit the scope of the invention.
Referring to fig. 1, which is a schematic diagram of a high heat dissipation solar photovoltaic back panel provided by the present invention, the high heat dissipation solar photovoltaic back panel provided by the present invention includes a back panel core layer 110, an inner white reflective layer 120 and an outer black heat dissipation layer 130, wherein the inner white reflective layer 120 is made of a white high reflectivity modified material, such as a high reflectivity polyolefin modified material, a high reflectivity polyvinyl fluoride material, a high reflectivity polyvinylidene fluoride material, etc.; the outer black heat dispersion layer 130 is made of a black nano-filled modified material with good compatibility with the inner white reflective layer 120 and high heat dissipation, such as a black nano-filled nylon modified material, a black nano-filled modified polyolefin material, a black nano-filled modified polyvinyl fluoride material, a black nano-filled modified polyvinylidene fluoride material or other black nano-filled modified materials.
The inner white reflecting layer 120 can reflect infrared light out to reduce the temperature of the photovoltaic module; the outer black heat sink layer 130 is made of a high heat sink material to conduct the temperature of the photovoltaic module away.
The high-heat-dissipation type solar photovoltaic backboard provided by the invention has an excellent heat dissipation function, effectively reduces the temperature of a photovoltaic module, has excellent hydrolysis resistance, photo-aging resistance and water vapor barrier property, and is simple in manufacturing process and environment-friendly. The heat conductivity coefficient of the outer side of the back plate is more than 1.5W/m <2 > C, and the light reflectivity of the inner side of the back plate is more than 92%.
The novel backboard is adopted by the photovoltaic module, the temperature can be 3-5 ℃ lower than that of the traditional backboard, and the power generation of the photovoltaic module is improved by more than 3-5 watts.
Table 1 is a comparison table of test data of various parameters of the high heat dissipation type solar photovoltaic backboard, the TPT backboard and the KPK backboard provided by the invention.
Table 1 test data vs. table
As can be seen from table 1, the high heat dissipation type solar photovoltaic back sheet according to the present embodiment has more excellent elongation at break retention, larger interlayer peeling force, and higher power generation under the same power condition.
Referring to fig. 2, a schematic diagram of a manufacturing apparatus for manufacturing a high heat dissipation type solar photovoltaic back sheet according to the present invention includes an extruder 210, a pressure roller 220, a cooling roller 230, a plurality of driving rollers 240, a winding unit 250, and a forming material path 260. The extruder 210 has an upper feed chamber 213, a middle feed chamber 214 located below the upper feed chamber 213, a lower feed chamber 215 located below the middle feed chamber 214, and a forming die 212 disposed at one end of the extruder 210 and communicating with the upper feed chamber 213, the middle feed chamber 214, and the lower feed chamber 215, a forming channel 260 horizontally disposed below the forming die 212, a pressure roller 220 disposed opposite to the cooling roller 230, and a gap between the pressure roller 220 and the cooling roller 230, and a plurality of driving rollers 240 disposed between the cooling roller 230 and the winding unit 250. The cooling roller 230 has a cooling device inside. The pressure roller 220 presses against the chill roller 230 for setting the thickness of the high heat rejection solar photovoltaic backsheet.
The upper feeding cavity 213 is provided with black nano filling modified material, the middle feeding cavity 214 is provided with polyolefin copolymer (PO), the lower feeding cavity 215 is provided with white high-reflectivity modified material, the black nano filling modified material, the polyethylene terephthalate plastic and the white high-reflectivity modified material are extruded together at the forming die head 212 to form a flaky melt with a certain width, the flaky melt moves into a gap between the pressure roller 220 and the cooling roller 230 along the forming material channel 260, and the flaky melt is cooled and formed into the high-heat-dissipation solar photovoltaic backboard with a composite lamellar structure through the relative pressing of the pressure roller 220 and the cooling roller 230 and the cooling effect of the cooling roller 230. The solar photovoltaic backboard with high heat dissipation is transmitted to the winding unit 250 by the plurality of driving rollers 240 for winding.
Compared with the prior art, the high-heat-dissipation solar photovoltaic backboard comprises a backboard core layer, an inner white reflecting layer positioned on one side of the backboard core layer and an outer black heat-dissipation layer positioned on the other side of the backboard core layer, wherein the inner white reflecting layer is made of a white high-reflectivity modified material, and the outer black heat-dissipation layer is made of a high-heat-dissipation black nano filling modified material. So has excellent heat dissipation function, excellent hydrolysis resistance, light aging resistance and water vapor barrier property, and the manufacturing process is simple, and the power generation efficiency is high. The invention further provides manufacturing equipment of the high-heat-dissipation type solar photovoltaic backboard.
The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions or improvements within the spirit of the present invention are intended to be covered by the claims of the present invention.
Claims (1)
1. The utility model provides a preparation equipment of high heat dissipation formula solar photovoltaic backplate which characterized in that: the high-heat-dissipation solar photovoltaic backboard comprises a backboard core layer, an inner side white reflecting layer positioned on one side of the backboard core layer and an outer side black heat dispersion layer positioned on the other side of the backboard core layer, wherein the inner side white reflecting layer is made of white high-reflectivity modified materials, and the outer side black heat dissipation layer is made of high-heat-dissipation black nano filling modified materials; the white high-reflectivity modified material is a high-reflectivity polyolefin modified material, a high-reflectivity polyvinyl fluoride material or a high-reflectivity polyvinylidene fluoride material;
The black nano filling modified material is black nano filling nylon modified material, black nano filling modified polyolefin material, black nano filling modified polyvinyl fluoride material or black nano filling modified polyvinylidene fluoride material;
The back plate core layer is made of polyolefin copolymer;
The thickness of the inner white reflecting layer is 10-100 micrometers, and the thickness of the outer black heat dispersion layer is 10-100 micrometers;
The device comprises an extruder, a pressure roller, a cooling roller, a plurality of driving rollers, a rolling unit and a forming material channel, wherein the extruder is provided with an upper material feeding cavity, a middle material feeding cavity positioned below the upper material feeding cavity, a lower material feeding cavity positioned below the middle material feeding cavity, and a forming die head which is arranged at one end of the extruder and is communicated with the upper material feeding cavity, the middle material feeding cavity and the lower material feeding cavity, the forming material channel is horizontally arranged below the forming die head, the pressure roller and the cooling roller are oppositely arranged, a gap is reserved between the pressure roller and the cooling roller, a plurality of driving rollers are arranged between the cooling roller and the rolling unit, and a cooling device is arranged inside the cooling roller;
The upper feed cavity is provided with black nano filling modified materials, the middle feed cavity is provided with polyolefin copolymer, and the lower feed cavity is provided with white high-reflectivity modified materials;
at the forming die head, the black nano filling modified material, the polyethylene terephthalate plastic and the white high-reflectivity modified material are extruded together to form a flaky melt with a certain width, the flaky melt moves into a gap between a pressure roller and a cooling roller along a forming material channel, and the flaky melt is cooled and formed into the high-heat-dissipation solar photovoltaic backboard with a composite lamellar structure through the relative pressure of the pressure roller and the cooling effect of the cooling roller; the high heat dissipation type solar photovoltaic backboard is transmitted to the winding unit by a plurality of driving rollers to be wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138399.4A CN109244168B (en) | 2018-09-28 | 2018-09-28 | High heat dissipation type solar photovoltaic backboard and manufacturing equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138399.4A CN109244168B (en) | 2018-09-28 | 2018-09-28 | High heat dissipation type solar photovoltaic backboard and manufacturing equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109244168A CN109244168A (en) | 2019-01-18 |
| CN109244168B true CN109244168B (en) | 2024-04-19 |
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| CN201811138399.4A Active CN109244168B (en) | 2018-09-28 | 2018-09-28 | High heat dissipation type solar photovoltaic backboard and manufacturing equipment thereof |
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| CN109244168A (en) | 2019-01-18 |
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