CN204464306U - A kind of hetero-junction solar cell assembly improving reflection - Google Patents
A kind of hetero-junction solar cell assembly improving reflection Download PDFInfo
- Publication number
- CN204464306U CN204464306U CN201420736657.XU CN201420736657U CN204464306U CN 204464306 U CN204464306 U CN 204464306U CN 201420736657 U CN201420736657 U CN 201420736657U CN 204464306 U CN204464306 U CN 204464306U
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- China
- Prior art keywords
- hetero
- solar cell
- junction solar
- light
- concentrator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The utility model discloses a kind of hetero-junction solar cell assembly improving reflection, comprise some hetero-junction solar cells, first hetero-junction solar cell is arranged at above the second hetero-junction solar cell, first hetero-junction solar cell floor space is greater than the top surface area of the second hetero-junction solar cell, connected by concentrator between first hetero-junction solar cell and the second hetero-junction solar cell, described first hetero-junction solar cell upper surface arranges pyramidal matte light trapping structure, bottom surface is plane and carries out polishing, and the upper surface of the second hetero-junction solar cell is surface polishing.The utility model carries out polishing to the first hetero-junction solar cell bottom surface, the light of the first hetero-junction solar cell inside carries out back reflection, make its light translation duration longer, by the effect of concentrator, the comparatively weak light source through the first hetero-junction solar cell is converged again, conversion can be absorbed by the second hetero-junction solar cell, under the effect of simultaneously burnishing surface thereon, can retro-reflection, thus light is converged at concentrator, improve incident intensity.
Description
Technical field
The utility model relates to a kind of hetero-junction solar cell assembly, particularly a kind of hetero-junction solar cell assembly improving reflection.
Background technology
The solar module of prior art, general employing two kinds of structures:
1, upper surface matte and bottom surface matte;
2, upper surface matte and bottom surface surface polishing.
First method is original method, but its light energy conversion efficiency is relative to lower existing technical conditions, and second method be only to incident light first time transform light energy improvement, due to the characteristic of bottom surface surface polishing, adopt the solar cell of this kind of design, light transmittance is all relatively good, and the light crossed for transmission is inadequate due to its light intensity, cannot again utilize.
Summary of the invention
Goal of the invention: the purpose of this utility model is to solve the low or incomplete problem of light-use of existing hetero-junction solar cell assembly light energy conversion efficiency.
Technical scheme: the utility model provides following technical scheme: a kind of hetero-junction solar cell assembly improving reflection, comprise at least two pieces of hetero-junction solar cells, first hetero-junction solar cell is arranged at above the second hetero-junction solar cell, first hetero-junction solar cell floor space is greater than the top surface area of the second hetero-junction solar cell, connected by concentrator between first hetero-junction solar cell and the second hetero-junction solar cell, described first hetero-junction solar cell upper surface arranges pyramidal matte, bottom surface is plane and carries out polishing, and the upper surface of the second hetero-junction solar cell is surface polishing.
As optimization, described concentrator comprises convex lens.
As optimization, described second hetero-junction solar cell bottom surface is surface polishing.
Operation principle: incident light carries out the first hetero-junction solar cell, back reflection is carried out in its bottom surface surface polishing, make its inner light energy conversion efficiency higher, transmission and the light intensity gone out is obviously not enough, because the first hetero-junction solar cell area is greater than the second hetero-junction solar cell, under the effect of concentrator, light can be converged, improve light intensity, make it possible to proceed light energy conversion at the second hetero-junction solar cell, simultaneously, because the second hetero-junction solar cell upper surface is surface polishing, reflecting focal again can be carried out to light, improve light intensity, make light energy conversion efficiency higher.
Beneficial effect: the utility model compared with prior art: the utility model carries out polishing to the first hetero-junction solar cell bottom surface, the light of the first hetero-junction solar cell inside carries out back reflection, make its light translation duration longer, by the effect of concentrator, comparatively weak light source through the first hetero-junction solar cell is converged again, conversion can be absorbed by the second hetero-junction solar cell, under the effect of simultaneously burnishing surface thereon, can retro-reflection, thus light is converged at concentrator, improve the incident intensity of the second hetero-junction solar cell, improve light energy use efficiency, make use of luminous energy more fully.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of hetero-junction solar cell assembly improving reflection, comprise two pieces of hetero-junction solar cells, first hetero-junction solar cell 1 is arranged at above the second hetero-junction solar cell 2, first hetero-junction solar cell 1 floor space is greater than the top surface area of the second hetero-junction solar cell 2, connected by concentrator 3 between first hetero-junction solar cell 1 and the second hetero-junction solar cell 2, described first hetero-junction solar cell 1 upper surface arranges pyramidal matte 4, bottom surface is plane and carries out polishing, and the upper surface of the second hetero-junction solar cell 2 is surface polishing.Described concentrator 3 comprises convex lens.Described second hetero-junction solar cell 2 bottom surface is surface polishing.
Incident light carries out the first hetero-junction solar cell 1, back reflection is carried out in its bottom surface surface polishing, make its inner light energy conversion efficiency higher, transmission and the light intensity gone out is obviously not enough, because the first hetero-junction solar cell 1 area is greater than the second hetero-junction solar cell 2, under the effect of concentrator 3, light can be converged, improve light intensity, make it possible to proceed light energy conversion at the second hetero-junction solar cell 2, simultaneously, because the second hetero-junction solar cell 2 upper surface is surface polishing, reflecting focal again can be carried out to light, improve light intensity, make light energy conversion efficiency higher.
Claims (3)
1. one kind is improved the hetero-junction solar cell assembly of reflection, it is characterized in that: comprise at least two pieces of hetero-junction solar cells, first hetero-junction solar cell is arranged at above the second hetero-junction solar cell, first hetero-junction solar cell floor space is greater than the top surface area of the second hetero-junction solar cell, connected by concentrator between first hetero-junction solar cell and the second hetero-junction solar cell, described first hetero-junction solar cell upper surface arranges pyramidal matte, bottom surface is plane and carries out polishing, and the upper surface of the second hetero-junction solar cell is surface polishing.
2. the hetero-junction solar cell assembly improving reflection according to claim 1, is characterized in that: described concentrator comprises convex lens.
3. the hetero-junction solar cell assembly improving reflection according to claim 1, is characterized in that: described second hetero-junction solar cell bottom surface is surface polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736657.XU CN204464306U (en) | 2014-12-01 | 2014-12-01 | A kind of hetero-junction solar cell assembly improving reflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736657.XU CN204464306U (en) | 2014-12-01 | 2014-12-01 | A kind of hetero-junction solar cell assembly improving reflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204464306U true CN204464306U (en) | 2015-07-08 |
Family
ID=53671147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420736657.XU Expired - Fee Related CN204464306U (en) | 2014-12-01 | 2014-12-01 | A kind of hetero-junction solar cell assembly improving reflection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204464306U (en) |
-
2014
- 2014-12-01 CN CN201420736657.XU patent/CN204464306U/en not_active Expired - Fee Related
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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: 20150708 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |