CN205428968U - Solar cell module - Google Patents
Solar cell module Download PDFInfo
- Publication number
- CN205428968U CN205428968U CN201620193447.XU CN201620193447U CN205428968U CN 205428968 U CN205428968 U CN 205428968U CN 201620193447 U CN201620193447 U CN 201620193447U CN 205428968 U CN205428968 U CN 205428968U
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- China
- Prior art keywords
- solar battery
- battery sheet
- cover plate
- solar
- solar module
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a solar cell module, include: the backplate, a cover plate. The pressfitting is in a plurality of solar wafer between apron and the backplate, solar wafer's sensitive surface with the apron is relative, solar wafer's face in a poor light with the backplate is relative, has the clearance between each solar wafer, wherein still be provided with reflecting structure on solar wafer's the face in a poor light. Above -mentioned solar cell module because solar wafer's face in a poor light is provided with reflecting structure, has reduced battery piece back extinction, and the more arrives the backplate with the light reflex, reflects the battery piece openly through the clearance between the battery piece to improve light absorption efficiency.
Description
Technical field
This utility model relates to photovoltaic apparatus field, particularly relates to a kind of solar module.
Background technology
At present, the dielectric film that the sunken light antireflection structure of the light front surface of commercialization crystal silicon solar energy battery is covered single or multiple lift by the matte pattern of a few micrometers size forms, and back surface is usually plane pattern.Incident illumination is short-and-medium, medium wavelength spectra part (wave-length coverage is 300 to 800nm) can be absorbed by crystalline silicon effectively, is converted to photo-generated carrier, separates and is collected, contributes to photoelectric current.Owing to crystalline silicon material is less to long wavelength's spectra part (wave-length coverage is 900 to 1200nm) absorptance, the light of this part reflects solaode via back surface, reflectance is generally 30 to 50%, is not effectively converted to electric current, causes optical loss.
Utility model content
Based on this, it is necessary to provide the solar module of the absorbance of a kind of light that can improve the reflection of solar cell back bright finish.
A kind of solar module, including:
Backboard；
Cover plate；
The multiple solar battery sheets being pressed together between described cover plate and backboard, the sensitive surface of described solar battery sheet is relative with described cover plate, the shady face of described solar battery sheet is relative with described backboard, there is between each solar battery sheet gap, the shady face of wherein said solar battery sheet is additionally provided with reflective structure.
Above-mentioned solar module, owing to the shady face of solar battery sheet is provided with reflective structure, decreases cell piece back side extinction, more reflects light to backboard, reflex to cell piece front by the gap between cell piece, thus improve efficiency of light absorption.
Wherein in an embodiment, described reflective structure is the reflectance coating covered on the shady face of solar battery sheet.
Wherein in an embodiment, the surface of described reflectance coating has to increase the diffusion layer of scattering of light.
Wherein in an embodiment, the column structure that surface Formation cross-section is triangle of described diffusion layer.
Wherein in an embodiment, described reflectance coating is metallic reflective coating, full electrolyte reflectance coating or inter metal dielectric reflectance coating.
Wherein in an embodiment, the surface of described reflective structure has the concaveconvex structure of setting continuously.
Wherein in an embodiment, the surface that described backboard is relative with the shady face of described solar battery sheet has the concaveconvex structure of setting continuously.
Wherein in an embodiment, the surface that described cover plate is relative with the sensitive surface of described solar battery sheet has the concaveconvex structure of setting continuously.
Wherein in an embodiment, described cover plate is glass plate.
Wherein in an embodiment, described cover plate is provided with the first antireflective coating on the surface of solar battery sheet, and the sensitive surface of described solar battery sheet is provided with the second antireflective coating.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the solar module of an embodiment；
Fig. 2 is the schematic diagram of the diffusion layer of reflective structure；
Fig. 3 is the schematic diagram of the concaveconvex structure arranged on backboard, cover plate.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in detail.Elaborate a lot of detail in the following description so that fully understanding this utility model.But this utility model can be implemented to be much different from alternate manner described here, those skilled in the art can do similar improvement in the case of this utility model intension, and therefore this utility model is not limited by following public specific embodiment.
Below in conjunction with the accompanying drawings, the better embodiment of this utility model solar module is described in detail.
With reference to Fig. 1, the utility model proposes a kind of solar module 100, including backboard 110, cover plate 120, multiple solar battery sheets 130 of being pressed together between backboard 110 and cover plate 120.Wherein, the sensitive surface of solar battery sheet 130 is relative with cover plate 120, and the shady face of solar battery sheet 130 is relative with backboard 110.
It is provided with the first transparent encapsulation material 140 between cover plate 120 and solar battery sheet 130, cover plate 120 is packaged as a whole with solar battery sheet 130.First transparent encapsulation material 140 is the EVA of high transmission rate.Additionally, cover plate 120 is additionally provided with the first antireflective coating 122 on the surface of solar battery sheet 130, to increase the transmitance of light.The material that cover plate 120 can use glass etc. to have preferable light transmittance prepares.
It is provided with the second transparent encapsulation material 150 between backboard 110 and solar battery sheet 130, cover plate 120 is packaged as a whole with solar battery sheet 130.Second transparent encapsulation material 150 is the EVA of high transmission rate.
It is additionally provided with the second antireflective coating (non-label) on the sensitive surface of solar battery sheet 130, to increase the transmitance of light, improves the assimilation effect of light.
Gap 160 is left between adjacent solar battery sheet 130.After solar battery sheet 130 and backboard 110, cover plate 120 are packaged as a whole, shown in ginseng Fig. 1, the light injected from gap 160, first by backboard 110 back into backlight face, then multiple reflections between shady face and backboard 110, cover plate 120, and the final sensitive surface being reflected back solar battery sheet by cover plate 120 is reflexed to again via gap.
It is provided with reflective structure 132 on the shady face of each solar battery sheet 130.Therefore, decreasing the shady face absorption to light of solar battery sheet 130, shady face will more reflect light to backboard, is reflexed to the sensitive surface of solar battery sheet 130 by the gap 160 between solar battery sheet, thus improves efficiency of light absorption.
Reflective structure 132 can be the reflectance coating covered on the shady face of solar battery sheet 130.The surface of reflectance coating has to increase the diffusion layer 1322 of scattering of light.Diffusion layer 1322 can increase the light scattering to surrounding, makes more light be absorbed by solar battery sheet, and then improves electric current density.
Ginseng Fig. 2, the column structure that surface Formation cross-section is triangle of diffusion layer 1322, light, after left side is irradiated, is spread when penetrating from right side, it is possible to have the different parts of more light directive cell piece.The surface of diffusion layer 1322 is not limited to form above-mentioned column structure, as long as the disperse of light can be increased.For example, it is possible to the surface of diffusion layer 1322 is processed by the structure of reference crystal.
Reflectance coating can be metallic reflective coating, full electrolyte reflectance coating or inter metal dielectric reflectance coating, can be affixed directly on the shady face of solar battery sheet 130.The processing technology of common PVP-ZrO2 thin film and cell piece aluminum back surface field gel method deposition layer of silicon dioxide surface, it is possible to obtain the aforesaid reflectance coating with diffusion layer 1322.
The surface that cover plate 120 is relative with solar battery sheet 130 is additionally provided with catoptric arrangement 124, to increase the reflecting effect to light, enables more light to be reflected back the sensitive surface of solar battery sheet 130.Catoptric arrangement 124 is the concaveconvex structure using embossed technology to be formed, and joins Fig. 3.The shape of the bossing in concaveconvex structure is not especially limited, and the shape of the groove between bossing is also not especially limited.
The surface that backboard 110 is relative with the shady face of solar battery sheet 130 has the concaveconvex structure 112 of setting continuously, it is thus achieved that high reflective back plane.The shape of the bossing in concaveconvex structure 112 is not especially limited, and the shape of the groove between bossing is also not especially limited.
It should be noted that backboard 110 and cover plate 120 can be not provided with concaveconvex structure.The most only shady face at solar battery sheet 130 arranges reflective structure 132 and i.e. can reach the shady face reducing solar battery sheet 130 to the absorption of light, the raising cell piece effect to light absorption.In other words, the backboard that backboard 110 can be common.Cover plate 120 can be common cover plate, such as common glass plate.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (10)
1. a solar module, it is characterised in that including:
Backboard；
Cover plate；
The multiple solar battery sheets being pressed together between described cover plate and backboard, the sensitive surface of described solar battery sheet is relative with described cover plate, the shady face of described solar battery sheet is relative with described backboard, there is between each solar battery sheet gap, the shady face of wherein said solar battery sheet is additionally provided with reflective structure.
Solar module the most according to claim 1, it is characterised in that described reflective structure is the reflectance coating covered on the shady face of solar battery sheet.
Solar module the most according to claim 2, it is characterised in that the surface of described reflectance coating has to increase the diffusion layer of scattering of light.
Solar module the most according to claim 3, it is characterised in that the column structure that surface Formation cross-section is triangle of described diffusion layer.
Solar module the most according to claim 2, it is characterised in that described reflectance coating is metallic reflective coating, full electrolyte reflectance coating or inter metal dielectric reflectance coating.
Solar module the most according to claim 1, it is characterised in that the surface of described reflective structure has the concaveconvex structure of setting continuously.
Solar module the most according to claim 1, it is characterised in that the surface that described backboard is relative with the shady face of described solar battery sheet has the concaveconvex structure of setting continuously.
Solar module the most according to claim 1, it is characterised in that the surface that described cover plate is relative with the sensitive surface of described solar battery sheet has the concaveconvex structure of setting continuously.
Solar module the most according to claim 1, it is characterised in that described cover plate is glass plate.
Solar module the most according to claim 1, it is characterised in that described cover plate is provided with the first antireflective coating on the surface of solar battery sheet, and the sensitive surface of described solar battery sheet is provided with the second antireflective coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193447.XU CN205428968U (en) | 2016-03-14 | 2016-03-14 | Solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193447.XU CN205428968U (en) | 2016-03-14 | 2016-03-14 | Solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205428968U true CN205428968U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620193447.XU Active CN205428968U (en) | 2016-03-14 | 2016-03-14 | Solar cell module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677438A (en) * | 2017-02-06 | 2017-05-17 | 江苏友科太阳能科技有限公司 | Novel high-gain component type photovoltaic tile |
| CN110416339A (en) * | 2019-07-04 | 2019-11-05 | 东南大学 | A kind of structure improving solar cell module transfer efficiency |
-
2016
- 2016-03-14 CN CN201620193447.XU patent/CN205428968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677438A (en) * | 2017-02-06 | 2017-05-17 | 江苏友科太阳能科技有限公司 | Novel high-gain component type photovoltaic tile |
| CN110416339A (en) * | 2019-07-04 | 2019-11-05 | 东南大学 | A kind of structure improving solar cell module transfer efficiency |
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