CN205645831U - Solar photovoltaic module - Google Patents
Solar photovoltaic module Download PDFInfo
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- CN205645831U CN205645831U CN201620440663.XU CN201620440663U CN205645831U CN 205645831 U CN205645831 U CN 205645831U CN 201620440663 U CN201620440663 U CN 201620440663U CN 205645831 U CN205645831 U CN 205645831U
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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
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Abstract
The utility model relates to a photon utilization ratio and output's solar photovoltaic module solar photovoltaic module be can improve, a plurality of battery pieces and photovoltaic backplate that glass layer, interval array arranged are included from top to bottom, link together through the EVA glued membrane between a plurality of battery pieces that glass layer, interval array were arranged and the photovoltaic backplate, the basal surface of photovoltaic backplate is equipped with one deck reflective insulation layer, the position of corresponding each the battery piece of upper surface on reflective insulation layer is equipped with the storage tank, be equipped with phosphor powder in the storage tank.
Description
Technical field
This utility model relates to field of photovoltaic power generation, particularly to a kind of solar photovoltaic assembly.
Background technology
Solar photovoltaic generation system (abbreviation photovoltaic) is a kind of system utilizing photovoltaic effect and solar energy is converted into electric energy, the critical piece of its opto-electronic conversion is crystal silicon photovoltaic cell, when on solar irradiation to crystal silicon photovoltaic cell, crystal silicon photovoltaic cell will become the luminous energy of the sun into electric energy, produces electric current.At present, photovoltaic module mainly includes some cell pieces, rear layer glued membrane and the photovoltaic back that glassy layer, front adhesive film, spaced array are arranged, described glassy layer, front adhesive film, some cell pieces, rear layer glued membrane and photovoltaic back are the most glued, in order to improve the generating efficiency of photovoltaic module, need to reduce the reflection of assembly surface sunlight, thus increase the irradiance of assembly, improve the photoelectric transformation efficiency of solaode.In prior art, the following method of general employing: 1, anti-reflection coated glass: utilize at surface layer of glass coating antireflective film, so that sunlight reduces the reflection to photovoltaic module, increase the photovoltaic module absorption to illumination, thus increase component power and generated energy；2, ultra-thin glass: reduce the thickness of assembly face glass, thus increase sunlight Penetration ration, reduces illumination refractive index, strengthens irradiation intensity；Said method needs to change the structure of photovoltaic module, to the photovoltaic module of conventional structure inapplicable；And the structure changing photovoltaic module can increase production cost, and owing to sunlight is made up of the light of different wavelength, different wave length has different photon energies, only photon energy is more than the band gap of single junction cell material, then could be generated electricity by absorbing, if photon energy is meeting permeable material less than the band gap singly entering junction battery material, the cell piece of right many knot series connection is not infinite thickness because of every batteries sheet, therefore all of photon energy sunlight more than single junction cell band gap can not be absorbed, still can pass through battery to backboard by some sunlight, while affecting the generating efficiency of photovoltaic module, if solar components is generally mounted to top of building, the most heat insulation effect can't be played.
Therefore, in order to improve the generating efficiency of photovoltaic module further, China Patent No. be 201220404358.7 utility model disclose a kind of solar photovoltaic assembly, some cell pieces, rear layer glued membrane and the photovoltaic back arranged including glassy layer, front adhesive film, spaced array, described glassy layer, front adhesive film, some cell pieces, rear layer glued membrane and photovoltaic back are the most glued, and described photovoltaic back includes the direct reflection portion covered by cell piece and is positioned at the diffuse-reflectance portion in cell piece gap.This solar photovoltaic assembly can improve photon utilization rate and output.Its direct reflection portion 51 is zinc-plated in the photovoltaic back 5 covered by cell piece 3, and becomes direct reflection portion 51.This pass photovoltaic assembly photovoltaic back include the direct reflection portion covered by cell piece and be positioned at the diffuse-reflectance portion in cell piece gap, therefore, light is injected from glassy layer, the light incided on cell piece is utilized, simultaneously the light of partial penetration cell piece reflected by photovoltaic back and again with, thus improve the generating efficiency of photovoltaic module, but its reflecting effect of direct reflection portion only plating formation on backboard 5 is bad, and it is located between backboard and rear layer glued membrane, the front in direct reflection portion is spilt on rear layer glued membrane is easy, define partial occlusion, affect the reflecting effect in direct reflection portion 51, reduce generating efficiency.
Utility model content
For the problems referred to above, the utility model proposes a kind of solar photovoltaic assembly improving photon utilization rate and output.
For solving this technical problem, this utility model takes below scheme: a kind of solar photovoltaic assembly, it is characterized in that: from top to bottom include some cell pieces and photovoltaic back that glassy layer, spaced array arrange, linked together by EVA adhesive film between some cell pieces and photovoltaic back that described glassy layer, spaced array are arranged, the basal surface of described photovoltaic back is provided with one layer of reflective insulation layer, the position of the corresponding each cell piece of the upper surface of described reflective insulation layer is provided with storage tank, is provided with fluorescent material in described storage tank.
Improve further: being provided with triangle reflecting layer between described adjacent cell sheet, the surface in described triangle reflecting layer is provided with bar groove.
By using preceding solution, the beneficial effects of the utility model are: the basal surface of described photovoltaic back is provided with one layer of reflective insulation layer, reflective insulation layer it is provided with in bottom, the light making partial penetration cell piece is utilized after being reflected by the reflective insulation layer bottom photovoltaic back again, improve photoelectric transformation efficiency, thus improve the generating efficiency of photovoltaic module, reflective insulation layer is directly coated with and sticks at backboard basal surface, avoid the front spilling over specular layer on rear layer glued membrane, forming part is blocked, and affects the phenomenon of the reflection in direct reflection portion.The position of the corresponding each cell piece of the upper surface of described reflective insulation layer is provided with storage tank, it is provided with fluorescent material in described storage tank, make cell piece when absorbing sunlight, fluorescent material can be transformed into the solar spectrum more than 1.2 micron fraction penetrated on cell piece surface the solar cell spectrum of short wavelength, the sunlight inciding on cell piece is utilized completely, widen cell piece and absorb the scope of sunlight, be greatly improved the photoelectric transformation efficiency of solar cell.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment one structural representation.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, the present invention is further described.
Embodiment one:
With reference to Fig. 1, the open a kind of solar photovoltaic assembly of the present embodiment, from top to bottom include glassy layer 1, some cell pieces 2 and the photovoltaic back 3 that spaced array is arranged, described glassy layer 1, it is bonded together by EVA adhesive film 4 between some cell pieces 2 and photovoltaic back 3 that spaced array is arranged, the basal surface of described photovoltaic back 1 is provided with one layer of reflective insulation layer 5, reflective insulation layer it is provided with in bottom, the light making partial penetration cell piece is utilized after being reflected by the reflective insulation layer bottom photovoltaic back again, improve photoelectric transformation efficiency, thus improve the generating efficiency of photovoltaic module, reflective insulation layer is directly coated with and sticks at backboard basal surface, avoid the front spilling over specular layer on rear layer glued membrane, forming part is blocked, affect the phenomenon of the reflection in direct reflection portion.The position of the corresponding each cell piece 2 of the upper surface of described reflective insulation layer 5 is provided with storage tank, glue in described storage tank and be provided with fluorescent material 26, make cell piece when absorbing sunlight, fluorescent material can be transformed into the solar spectrum more than 1.2 micron fraction penetrated on cell piece surface the solar cell spectrum of short wavelength, the sunlight inciding on cell piece is utilized completely, widen cell piece and absorb the scope of sunlight, be greatly improved the photoelectric transformation efficiency of solar cell.Being provided with triangle reflecting layer between described adjacent cell sheet, the surface in described triangle reflecting layer is provided with bar groove.The light being injected between each cell piece gap is reflected by triangle reflecting layer glassy layer again and enters on cell piece, so, being achieved that the utilization of light maximizes, improve the utilization rate of photon and the output of photovoltaic module, bar groove can increase light reflectance further.
Described reflective insulation layer includes the raw material of following weight portion: silicone powder 20 weight portion, reflection powder 85 weight portion, fluorescent material 30 weight portion, acrylic acid powder 20 weight portion, 15 parts of the phenol aldehyde modified phenolic resin of polyvinyl alcohol, borosilicate glass pearl 35 weight portion, dispersant 6 weight portion, water 50 weight portion, elastic emulsion 150 parts, adjuvant 10 weight portion.
Described reflection powder is made up of the raw material of following weight portion, cupric oxide powder 20 weight portion, silicone rubber 30 weight portion, titanium dioxide 85 weight portion, far infrared ceramic powder 35 weight portion, manganese dioxide 40 weight portion.
Described adjuvant includes propylene glycol weight portion 2, defoamer 5 weight portion, thickening agent 5 weight portion, auxiliary rheological agents 5 weight portion, antifungus agent 5 weight portion, coalescents 5 weight portion.
nullThis utility model reflective insulation layer uses specific formula，Borosilicate glass pearl is added in formula,Improve heat reflectivity and radiation insulation effect，And there is conduction of heat iris action,Reduce the heat conductivity of class coating material,Thus play heat insulation cooling effect，Solar components is installed on top of building，The most heat insulation effect can be played，Simultaneously bad with other raw material bond effect because of borosilicate glass pearl，The present invention also adds modified phenolic resin part in formula can improve the cohesive force of each material and borosilicate glass pearl，Improve using effect，Fluorescent material is added in formula,The solar spectrum more than 1.2 micron fraction penetrated on cell piece surface can be transformed into the solar cell spectrum of short wavelength further，The sunlight inciding on cell piece is utilized completely，Further increase the photoelectric transformation efficiency of cell piece.The present invention also adds elastic emulsion in formula and further increases heat insulation, reflecting effect simultaneously, improves raw-material adhesive force.
Embodiment two:
The structure of this embodiment solar photovoltaic assembly and previous embodiments, different: described reflective insulation layer includes the raw material of following weight portion: silicone powder 25 weight portion, reflection powder 100 weight portion, fluorescent material 45 weight portion, acrylic acid powder 25 weight portion, modified phenolic resin 20 parts, borosilicate glass pearl 40 weight portion, dispersant 10 weight portion, water 55 weight portion, elastic emulsion 200 parts, adjuvant 15 weight portion.
Described reflection powder is made up of the raw material of following weight portion, cupric oxide powder 35 weight portion, silicone rubber 40 weight portion, titanium dioxide 100 weight portion, far infrared ceramic powder 45 weight portion, manganese dioxide 55 weight portion.
Described adjuvant includes propylene glycol weight portion 5, defoamer 8 weight portion, thickening agent 8 weight portion, auxiliary rheological agents 10 weight portion, antifungus agent 10 weight portion, coalescents 10 weight portion.
Embodiment three: the structure of this embodiment solar photovoltaic assembly and previous embodiments, different: described reflective insulation layer includes the raw material of following weight portion: silicone powder 23 weight portion, reflection powder 95 weight portion, fluorescent material 38 weight portion, acrylic acid powder 22 weight portion, 18 parts of the phenol aldehyde modified phenolic resin of polyvinyl alcohol, borosilicate glass pearl 38 weight portion, dispersant 8 weight portion, water 52 weight portion, elastic emulsion 180 parts, adjuvant 12 weight portion.
Described reflection powder is made up of the raw material of following weight portion, cupric oxide powder 28 weight portion, silicone rubber 35 weight portion, titanium dioxide 90 weight portion, far infrared ceramic powder 40 weight portion, manganese dioxide 42 weight portion.
Described adjuvant includes propylene glycol weight portion 3, defoamer 7 weight portion, thickening agent 6 weight portion, auxiliary rheological agents 8 weight portion, antifungus agent 7 weight portion, coalescents 8 weight portion.
Described above, only utilize modification, change that the embodiment of this origination techniques content, any those skilled in the art use this creation to be done, all belong to the scope of the claims of this creation opinion, and be not limited to those disclosed embodiments.
Claims (2)
1. a solar photovoltaic assembly, it is characterized in that: from top to bottom include some cell pieces and photovoltaic back that glassy layer, spaced array arrange, linked together by EVA adhesive film between some cell pieces and photovoltaic back that described glassy layer, spaced array are arranged, the basal surface of described photovoltaic back is provided with one layer of reflective insulation layer, the position of the corresponding each cell piece of the upper surface of described reflective insulation layer is provided with storage tank, is provided with fluorescent material in described storage tank.
A kind of solar photovoltaic assembly the most according to claim 1, it is characterised in that: being provided with triangle reflecting layer between described adjacent cell sheet, the surface in described triangle reflecting layer is provided with bar groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620440663.XU CN205645831U (en) | 2016-05-13 | 2016-05-13 | Solar photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620440663.XU CN205645831U (en) | 2016-05-13 | 2016-05-13 | Solar photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN205645831U true CN205645831U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620440663.XU Expired - Fee Related CN205645831U (en) | 2016-05-13 | 2016-05-13 | Solar photovoltaic module |
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| CN (1) | CN205645831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807559A (en) * | 2018-06-19 | 2018-11-13 | 中国计量大学 | A kind of N-type PERT double-sided solar batteries that efficiency gets a promotion |
-
2016
- 2016-05-13 CN CN201620440663.XU patent/CN205645831U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807559A (en) * | 2018-06-19 | 2018-11-13 | 中国计量大学 | A kind of N-type PERT double-sided solar batteries that efficiency gets a promotion |
| CN108807559B (en) * | 2018-06-19 | 2020-04-10 | 中国计量大学 | N-type PERT double-sided solar cell with improved efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20210513 |
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| CF01 | Termination of patent right due to non-payment of annual fee |