CN204119147U - Secondary optical element for collecting non-direct sunlight by concentrating photovoltaic - Google Patents
Secondary optical element for collecting non-direct sunlight by concentrating photovoltaic Download PDFInfo
- Publication number
- CN204119147U CN204119147U CN201420539260.1U CN201420539260U CN204119147U CN 204119147 U CN204119147 U CN 204119147U CN 201420539260 U CN201420539260 U CN 201420539260U CN 204119147 U CN204119147 U CN 204119147U
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- China
- Prior art keywords
- truncated cone
- solar cell
- secondary optics
- optics element
- wavelength light
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- 230000003287 optical effect Effects 0.000 title abstract 3
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 230000005494 condensation Effects 0.000 claims description 12
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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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 secondary optical element for concentrating photovoltaic collects indirect sunlight, secondary optical element is printing opacity, cavity, the frustum of wall thickness such as, wherein, the upper bottom surface of frustum is capped, and its lower bottom surface opening, and its outside lateral wall surface plates the film that can reflect long wavelength light, and its inside lateral wall surface plates the film that can reflect short wavelength light, transmit long wavelength light; the truncated cone is reversely and fixedly connected to the cell substrate with the solar cell, the solar cell is positioned in the lower bottom surface opening of the truncated cone, and the shape and the size of the solar cell are matched with those of the lower bottom surface opening of the truncated cone. The utility model has the advantages of simple structure, the processing degree of difficulty is little, with low costs, and for prior art, more can be applicable to the especially thin shape spotlight photovoltaic module structure of different grade type, life is longer, is worth promoting.
Description
Technical field
The utility model relates to the technical field of solar energy power generating, refers in particular to a kind of secondary optics element collecting non-direct sunlight for condensation photovoltaic.
Background technology
For the severe situation that reply fossil energy is day by day exhausted and environmental pollution is day by day serious, solar energy becomes desirable alternative energy source because having the advantages such as inexhaustible, nexhaustible, cleanliness without any pollution, and utilizing its effective exploitation has become the key realizing energy sustainable development.In the middle of effective utilization of solar energy, solar energy generation technology is one of research field that development in recent years is fast, the most most active.Along with the development of solar-photovoltaic technology, third generation condensation photovoltaic technology presents more wide application prospect.
By adopting cheap condenser system by sunlight on the very little high-performance multi-junction gallium arsenide solar cell of area, thus reduce the cost of system and the solar cell material consumption of costliness significantly.Condensation photovoltaic module generally have reflective and transmission-type two kinds, this patent is applied mainly for transmission-type module, its main lens is generally Fresnel Lenses, and through lens post-concentration on the solar cell, but not direct light then can not focus on the sunlight of vertical incidence on battery.Current, there is fractional transmission formula condensation photovoltaic module band secondary optics element.Module not with secondary optics element can only utilize direct light, and focal beam spot local energy is too concentrated on the solar cell, acceptance angle is less; In module with secondary optics element, the form that its secondary optics element majority adopts is that solid integral type spherical crown adds inverted rectangular pyramid, a part is clipped in pyramid lower end, form the bottom surface substantially suitable with solar-electricity pool area, with special jelly, bottom surface and battery are bonded together, then by special stand, this secondary optics element are fixed on cell substrates.Mainly there is two problems in the secondary optics element of this class formation, one is can be aging after bonding jelly between its bottom surface and solar cell uses for a long time, has a strong impact on light transmittance, shortens module useful life; Two is its shapes is that the spherical crown of integral type adds rectangular pyramid, complex structure, and difficulty of processing is comparatively large, and cost is higher, is not especially suitable for the thin type module of thickness at below 100mm.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of simple and reliable for structure, long service life, difficulty of processing are little, cost is low, and to the secondary optics element collecting non-direct sunlight for condensation photovoltaic that thick, thin type modular structure are all suitable for.
For achieving the above object, technical scheme provided by the utility model is: a kind of secondary optics element collecting non-direct sunlight for condensation photovoltaic, described secondary optics element be printing opacity, hollow, etc. the truncated cone of wall thickness, wherein, the upper bottom surface of the described truncated cone binds, its bottom surface opening, its outer side surface is coated with the film of energy reflect long wavelength lights, and its interior sidewall surface is coated with the film of energy reflecting short wavelength light, transmission long wavelength light; Described truncated cone inversion is fixed on the cell substrates of band solar cell, and described solar cell is positioned at the bottom surface opening of this truncated cone, and the bottom surface opening of its shape size and this truncated cone matches.
The medial and lateral wall of the described truncated cone is for facing directly or curved surface.
The described truncated cone is cone or rectangular pyramid.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
1, compare traditional structure, longer service life of the present utility model, and to current optically focused module, there is general applicability;
2, can the non-direct sunlight of Collection utilization, simultaneously also can homogenize optically focused hot spot and increase acceptance angle, thus effectively improve the photoelectric conversion efficiency of photovoltaic cell;
3, structure of the present utility model is simple, difficulty of processing is little, cost is low, and implement easily, be suitable for industrial production in enormous quantities, applied range, market prospects are good.
Accompanying drawing explanation
Fig. 1 is the overall cutaway view of secondary optics element described in the utility model.
Fig. 2 is the operation principle schematic diagram of secondary optics element described in the utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
As shown in Figure 1, the secondary optics element collecting non-direct sunlight for condensation photovoltaic described in the present embodiment be specially printing opacity, hollow, etc. the truncated cone 1 of wall thickness, wherein, the described truncated cone 1 can be cone or rectangular pyramid, and it is manufactured by high light transmittance glass or PMMA; The upper bottom surface of the described truncated cone 1 binds, its bottom surface opening, and its outer side surface is coated with the film of energy reflect long wavelength lights, and its interior sidewall surface is coated with the film of energy reflecting short wavelength light, transmission long wavelength light; The described truncated cone 1 inversion is fixed on the cell substrates 3 of band solar cell 2, and described solar cell 2 is positioned at the bottom surface opening of this truncated cone 1, and the bottom surface opening of its shape size and this truncated cone 1 matches.The medial and lateral wall of the described truncated cone 1 is for facing directly or curved surface, and concrete condition is decided according to the actual requirements.
Operation principle below in conjunction with the above-mentioned secondary optics element of accompanying drawing 2 pairs of the present embodiment is specifically described:
As shown in Figure 2, sunlight comprises short wavelength's scattered light I 4, short wavelength's scattered light II 5, long wavelength's scattered light I 6, long wavelength's scattered light II 7; During work, sunlight is incident from upper bottom surface, is first irradiated in interior sidewall surface, and now on it, film plates by short wavelength's scattered light I 4 and short wavelength's scattered light II 5 reflection (or through more than twice reflection) on solar cell 2 in institute; Long wavelength's scattered light I 6 and long wavelength's scattered light II 7 are then irradiated on outer side surface through interior sidewall surface, now on outer side surface plate film long wavelength's scattered light I 6 and long wavelength's scattered light II 7 reflected (or through more than twice reflection) on solar cell 2, the transform light energy of absorption is electric energy by final solar cell 2.
In sum, after the above scheme of employing, the utility model has that structure is simple, difficulty of processing is little, low cost and other advantages, and relative to prior art, more can be applicable to dissimilar especially thin type condensation photovoltaic modular structure, longer service life, is worthy to be popularized.
The examples of implementation of the above are only the preferred embodiment of the utility model, not limit practical range of the present utility model with this, therefore the change that all shapes according to the utility model, principle are done, all should be encompassed in protection range of the present utility model.
Claims (3)
1. collect the secondary optics element of non-direct sunlight for condensation photovoltaic for one kind, it is characterized in that: described secondary optics element be printing opacity, hollow, etc. the truncated cone (1) of wall thickness, wherein, the upper bottom surface of the described truncated cone (1) binds, its bottom surface opening, its outer side surface is coated with the film of energy reflect long wavelength lights, and its interior sidewall surface is coated with the film of energy reflecting short wavelength light, transmission long wavelength light; The described truncated cone (1) inversion is fixed on the cell substrates (3) of band solar cell (2), and described solar cell (2) is positioned at the bottom surface opening of this truncated cone (1), the bottom surface opening of its shape size and this truncated cone (1) matches.
2. a kind of secondary optics element collecting non-direct sunlight for condensation photovoltaic according to claim 1, is characterized in that: the medial and lateral wall of the described truncated cone (1) is for facing directly or curved surface.
3. a kind of secondary optics element collecting non-direct sunlight for condensation photovoltaic according to claim 1, is characterized in that: the described truncated cone (1) is cone or rectangular pyramid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539260.1U CN204119147U (en) | 2014-09-18 | 2014-09-18 | Secondary optical element for collecting non-direct sunlight by concentrating photovoltaic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539260.1U CN204119147U (en) | 2014-09-18 | 2014-09-18 | Secondary optical element for collecting non-direct sunlight by concentrating photovoltaic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204119147U true CN204119147U (en) | 2015-01-21 |
Family
ID=52336423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420539260.1U Active CN204119147U (en) | 2014-09-18 | 2014-09-18 | Secondary optical element for collecting non-direct sunlight by concentrating photovoltaic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204119147U (en) |
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2014
- 2014-09-18 CN CN201420539260.1U patent/CN204119147U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |