CN202217686U - Low concentration photovoltaic generating module - Google Patents
Low concentration photovoltaic generating module Download PDFInfo
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- CN202217686U CN202217686U CN2011202800821U CN201120280082U CN202217686U CN 202217686 U CN202217686 U CN 202217686U CN 2011202800821 U CN2011202800821 U CN 2011202800821U CN 201120280082 U CN201120280082 U CN 201120280082U CN 202217686 U CN202217686 U CN 202217686U
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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
A low concentration photovoltaic generating module comprises solar cell sheets, a heat radiation base plate, minute surface concentrators, a plated film transparent cover plate and a frame. The solar cell sheets are arranged in row, are uniformly bonded on the heat radiation base plate via insulating heat conduction bonding layers and are connected to be a cell string via a conflux band in a series manner. Each strip minute surface concentrator with a herringbone cross section is arranged between the two adjacent solar cells, so that incident light is concentrated on the solar cells. The plated film transparent cover plate is covered over the minute surface concentrators. The heat radiation base plate, the minute surface concentrators, the plated film transparent cover plate and the frame are sealed together. The low concentration photovoltaic generating module exhibits merits of both a conventional flat type solar photovoltaic cell panel and a conventional light collecting solar cell module, allows demerits of both the conventional flat type solar photovoltaic cell panel and the conventional light collecting solar cell module to be avoided, has the advantages of low cost, reliable performance and convenient use, and helps to create conditions for popularization of the solar generating technology.
Description
Technical field
The utility model relates to a kind of concentration solar cell assembly module, belongs to the solar-photovoltaic technology field.
Background technology
Along with the enhancing of the day by day exhausted and human environmental consciousness of global energy, be that the solar power generation cause of core has had development at full speed in recent years with the silicon photovoltaic cell.At present, solar module mainly contains two kinds, promptly traditional plate type solar photovoltaic battery panel and concentrating solar cell assembly.
Traditional plate type solar photovoltaic battery panel generates electricity under solar light irradiation, and the silicon chip of use is more, and cost of electricity-generating occupies high-leveled and difficult following; Can't with competitions such as thermoelectricity, water power, and because its silicon photocell string uses the EVA glue-line to seal admittedly, the easy macula lutea effect that makes the industry headache; Influence printing opacity; Even burn, and again can't local updating, the result scraps expensive monoblock unit template.In addition, this silicon photocell adopts the thick EVA seal protection glue-line of 0.3-0.6mm and does not add the glass plate that effective technology is handled, and can weaken efficient intensity, the reduction photoelectric conversion efficiency of incident.
The concentrating solar cell assembly has reduced the use amount of expensive battery sheet, generally uses optical elements such as Fresnel lens, paraboloidal mirror to realize high power concentrator.This electricity generation system all is provided with solar tracking and water cooling plant, departs from the problem of battery sheet or sends a telegraph the problem that the pond sheet lost efficacy because of temperature rise to solve hot spot.Though tracking technique and cooling technology are ripe, costs such as the manufacturing of its equipment, operation, maintenance are higher, account for more than 30% of total system cost, fall through thereby make through the original intention of optically focused technology reduction cost of electricity-generating.In addition, the light distribution lack of homogeneity of this optically focused hot spot is unfavorable for the operate as normal of battery sheet.
The light collecting electricity generation system that has is used reflective bucket type beam condensing unit; It is fit to the low-concentration system; Though saved water-cooling system, avoided the shortcoming of light distribution lack of homogeneity; But because of its light gathering efficiency is lower, tens times optically focused can only obtain the spotlight effect about 3 times in practice than design, and light gathering efficiency is less than 10% (so-called here light gathering efficiency be meant the luminous energy that shines on the silicon cell and the ratio of incident optical energy).The light collecting electricity generation system that has also need be established tracking system in addition, and the result also has a greatly reduced quality the original intention that reduces cost.In addition, the glass plate outer surface of existing light collecting electricity generation system is not because of adding protection, and 3-5 will descend the result of use and the life-span of having reduced system because of the natural erosion light transmittance.
Therefore, how overcoming the technical bottleneck of existing photovoltaic generating system, reduce the photovoltaic system cost of electricity-generating significantly, the efficient of solar power system is got a promotion, is the difficult problem that the relevant technologies personnel face.
The utility model content
The purpose of the utility model be to overcome prior art deficiency, provide a kind of cost of electricity-generating low low-concentration photovoltaic electricity generation module.
The said problem of the utility model realizes with following technical proposals:
A kind of low-concentration photovoltaic electricity generation module, it comprises solar battery sheet, heat dissipation metal base plate, mirror condenser, plated film transparent cover plate and frame; The setting of embarking on journey of said each solar battery sheet, they evenly are bonded on the heat dissipation metal base plate through the insulating heat-conductive adhesive linkage, and are connected into battery strings through the band that confluxes; Being provided with monolithic extruded moulding of heat dissipation metal base plate or the cross section that separates moulding between the adjacent two row solar battery sheets is lambdoid strip mirror condenser, is focused at incident ray on the battery sheet; Said plated film transparent cover plate covers the top of mirror condenser; Heat dissipation metal base plate (9), mirror condenser (1) are assembled into one with plated film transparent cover plate (4) sealing, and inside charges into protective gas.
Above-mentioned low-concentration photovoltaic electricity generation module; Said plated film transparent cover plate adopts glass or transparent resin substrate; Said glass or transparent resin substrate outer surface are the plane, and inner surface is the folding face of cross section indention, converge to the several centimeters in solar battery sheet below to incident ray through refraction; At the outer surface of glass or transparent resin substrate or/and inner surface is coated with optical thin film; Said optical thin film adopts conventional coating materials, and said conventional coating materials is taken from silicon dioxide, titanium dioxide, zirconium dioxide, alundum (Al, niobium pentaoxide, tantalum pentoxide or magnesium fluoride, is plated to individual layer, bilayer, three layers or MULTILAYER COMPOSITE optical medium film.
Above-mentioned low-concentration photovoltaic electricity generation module; The ratio (being geometric concentrating ratio) of the top spacing of adjacent two mirror condensers and bottom spacing (being battery sheet width) is 2～15; Angle between mirror condenser side and the solar cell plate plane is in 115 °～135 ° scopes, and the concentrator reflecting surface is plane, folding face or curved surface.Design transmission optically focused+reflecting condensation system makes incident ray when the oblique incidence of vertical incidence and big-elevation not too, just can all be focused on the silicon chip through primary event at most, has guaranteed that light gathering efficiency can be because of the rapid decline of oblique incidence.One typical contain the elevation angle be ± 7 °; Variable quantity greater than the sun elevation angle in the main illumination period in one day; Therefore can remove a day follower from; Only need in regular maintenance, to adjust the pitch angle of electricity generation module, about one month of summer, about week adjustment in winter once get final product, to guarantee to obtain more electric energy seasonally.
Above-mentioned low-concentration photovoltaic electricity generation module; The fine and close transparent dielectric film of protectiveness is set on the said solar cell string; Said fine and close transparent dielectric film covers solar battery sheet, on conflux band and the solder joint; Make it to avoid the natural erosion of moisture, oxygen etc., the thickness of said fine and close transparent dielectric film is 10-200nm.
Above-mentioned low-concentration photovoltaic electricity generation module is provided with the location notch of mirror condenser on the said heat dissipation metal base plate, the thickness of heat dissipation metal base plate is 0.5～3mm, and its front is a detent, and the back side is tongue.
Above-mentioned low-concentration photovoltaic electricity generation module, the straight line of incident sunlight after the refraction of plated film transparent cover plate is converged is called focal line, and said focal line is parallel to the strip mirror condenser and is positioned at the place, below of solar battery sheet.
The photovoltaic generating module of the utility model, inside, sealing assembling back is full of pure nitrogen or other protective gas, makes battery strings, specular reflector avoid the natural erosion of moisture, oxygen etc.
The utility model has been concentrated the traditional plate type solar photovoltaic battery panel use and the strong point of concentrating solar cell assembly, has avoided both weakness.The utility model replaces the EVA glue-line protection battery strings in the conventional solar cell assembly with fine and close transparent dielectric film; When battery strings is protected, improve light transmittance, avoided the macula lutea effect, made things convenient for the modular repair of product; Help reducing the production of products cost; Have that cost is low, dependable performance, advantage easy to use, for condition has been created in the popularization of solar energy generation technology.In addition, the utility model relies on consumingly to follow the tracks of and raises the efficiency no longer as traditional concentrating solar cell assembly, thereby when reducing the silicon cell use amount exponentially, has removed a day tracking from, and integrated cost can descend more than 20%.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structure of plated film transparent cover plate;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the scheme of installation of solar battery sheet on the heat dissipation metal base plate.
Each label is among the figure: 1, mirror condenser; 2, the band that confluxes; 3, solar battery sheet; 4, plated film transparent cover plate; 5, glass or transparent resin substrate; 6, optical thin film; 7, concentrator location notch; 8, frame; 9, heat dissipation metal base plate; F, focal line.
Embodiment
Referring to accompanying drawing, the utility model is processed plated film transparent cover plate 4 at the glass or the transparent resin substrate 5 outer surface light-plated films 6 of assembly module, and optical thin film 6 is complex optical films.
The thickness of glass or transparent resin substrate 5 is 2.8～5 millimeters.The outer surface of glass or transparent resin substrate 5 (solar radiation face) is plated to individual layer, bilayer, three layers or MULTILAYER COMPOSITE optical medium film or/and inner surface is a raw material with silicon dioxide (SiO2), titanium dioxide (TiO2), zirconium dioxide (ZrO2), alundum (Al (Al2O3), niobium pentaoxide (Nb2O5), tantalum pentoxide (Ta2O5), magnesium fluoride (MgF).
These coating materials are carried out appropriate collocation and Thickness Design, can make 4 pairs of relevant wave bands of solar spectrum of plated film transparent cover plate (0.4～1.1 μ m) have anti-reflection effect, different film system designs can obtain different antireflective effects; Ultraviolet light and near infrared light to beyond the above-mentioned wave band have barrier effect; Outer surface to transparent cover plate has wear-resistant corrosion resistant defencive function.This helps to enhance product performance, prolongs product useful life.
The silion cell string is not placed on the focal line position, but is positioned at the several centimeters in top of focal line, and a representative value is to be positioned at focal line top 3cm.Can improve the uniformity of light distribution like this, when improving non-normal incidence to the pardon of drift angle.
The light concentrating times of mirror condenser 1, sidewall and bottom surface angulation, light focusing unit quantity can be selected according to parameter designing such as generating template power; And match with the size of top plated film transparent cover plate 4, following radiating bottom plate 9, its numerical value directly has influence on the size and the thickness of template.
Referring to Fig. 1, Fig. 5, radiating bottom plate 9 usefulness have the metallic plate of concentrator location notch 7 to be processed, and it is the support plate and the radiator of silicon solar battery assembly.Because the operating current in the solar battery sheet 3 of this device is the several times of common solar cell; Ground, heat conduction are fixed on the heat dissipation metal base plate 9 well so solar battery sheet 3 will insulate, and its both sides are the concentrator location notchs 7 that are used for embedding mirror condenser 1 sidewall lower edge.In order clearly to represent the arrangement mode of solar battery sheet 3 on radiating bottom plate, concentrator location notch 7 does not draw among Fig. 6.
Radiating bottom plate 9 thickness are 0.5～3mm, and its front is a groove, and the back side is tongue, so more help heat radiation, and mechanical strength is also because of there being muscle to strengthen.
Be fitted together the constituent components module to plated film transparent cover plate 4, mirror condenser 1, solar battery sheet 3, radiating bottom plate 9 seal group.
The utility model is no longer as traditional plate type solar photovoltaic battery panel; Enclose battery strings hot pressing in the EVA glue-line with laminating machine, thereby shortened the production cycle, simplified establishment of component technology, exempted the yellow hot spot harm of EVA glue-line, made things convenient for the modular repair of assembly.
The door-plate of a modular construction picture hollow of this compactness according to the different power requirement, can have the size that varies in size.
Claims (6)
1. low-concentration photovoltaic electricity generation module; It is characterized in that; It comprises solar battery sheet (3), heat dissipation metal base plate (9), mirror condenser (1), plated film transparent cover plate (4) and frame (8); Said each solar battery sheet (3) setting of embarking on journey, they evenly are bonded in heat dissipation metal base plate (9) through the insulating heat-conductive adhesive linkage and go up and be connected into battery strings through the band (2) that confluxes; Between the adjacent two row solar battery sheets (3) cross section being set is lambdoid strip mirror condenser (1); Said plated film transparent cover plate (4) covers the top of mirror condenser (1); Heat dissipation metal base plate (9), mirror condenser (1) are assembled into one with plated film transparent cover plate (4) sealing.
2. according to the said low-concentration photovoltaic electricity generation module of claim 1; It is characterized in that; Said plated film transparent cover plate (4) adopts glass or transparent resin substrate (5); Said glass or transparent resin substrate (5) outer surface is the plane; Inner surface is the linear pattern light-gathering broken surface of cross section indention, or/and inner surface is coated with optical thin film (6), said optical thin film (6) adopts conventional coating materials at the outer surface of glass or transparent resin substrate (5); Said conventional coating materials is taken from silicon dioxide, titanium dioxide, zirconium dioxide, alundum (Al, niobium pentaoxide, tantalum pentoxide or magnesium fluoride, is plated to individual layer, bilayer, three layers or MULTILAYER COMPOSITE optical medium film.
3. according to claim 1 or 2 said low-concentration photovoltaic electricity generation modules; It is characterized in that; The top spacing of adjacent two mirror condensers (1) is 2～15 with the ratio of bottom spacing; Angle between mirror condenser (1) side and the solar battery sheet is in 115 °～135 ° scopes, and the concentrator reflecting surface is plane, folding face or curved surface.
4. according to the said low-concentration photovoltaic electricity generation module of claim 3; It is characterized in that; On said solar battery sheet (3), conflux band and the solder joint fine and close transparent dielectric film is set; Said fine and close transparent dielectric film covers solar battery sheet (3), on conflux band and the solder joint, the thickness of said fine and close transparent dielectric film is 10-200nm.
5. according to the said low-concentration photovoltaic electricity generation module of claim 4, it is characterized in that mirror condenser location notch (7) is set on the said heat dissipation metal base plate (9), and the thickness of heat dissipation metal base plate is 0.5～3mm, its front is a detent, and the back side is tongue.
6. according to the said low-concentration photovoltaic electricity generation module of claim 5; It is characterized in that; The incident sunlight converges through plated film transparent cover plate (4) refraction and is that straight line focal line, said focal line are parallel to strip mirror condenser (1) and are positioned at the place, below of solar battery sheet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202800821U CN202217686U (en) | 2011-02-21 | 2011-08-03 | Low concentration photovoltaic generating module |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120043037.4 | 2011-02-21 | ||
| CN201120043037 | 2011-02-21 | ||
| CN2011202800821U CN202217686U (en) | 2011-02-21 | 2011-08-03 | Low concentration photovoltaic generating module |
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| Publication Number | Publication Date |
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| CN202217686U true CN202217686U (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202800821U Expired - Fee Related CN202217686U (en) | 2011-02-21 | 2011-08-03 | Low concentration photovoltaic generating module |
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| CN (1) | CN202217686U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607171A (en) * | 2013-10-30 | 2014-02-26 | 李敬宇 | Wide-combination pattern light-concentrating assembly |
| CN103618498A (en) * | 2013-12-09 | 2014-03-05 | 山东力诺光伏高科技有限公司 | Low-cost solar cell module |
| CN106026900A (en) * | 2016-06-16 | 2016-10-12 | 昆山诃德新能源科技有限公司 | Low-power concentrating solar photovoltaic power generation module |
| CN106452339A (en) * | 2016-11-04 | 2017-02-22 | 上海空间电源研究所 | Low-temperature reflective concentrating solar cell array |
| US20170098729A1 (en) * | 2015-10-02 | 2017-04-06 | Semprius, Inc. | Wafer-integrated, ultra-low profile concentrated photovoltaics (cpv) for space applications |
| CN107255368A (en) * | 2017-06-30 | 2017-10-17 | 西安交通大学 | A kind of full spectrum of solar energy of frequency division type low-concentration photovoltaic high power concentrator photo-thermal/coupled thermomechanics utilizes system |
| US10416425B2 (en) | 2009-02-09 | 2019-09-17 | X-Celeprint Limited | Concentrator-type photovoltaic (CPV) modules, receiver and sub-receivers and methods of forming same |
| CN110534600A (en) * | 2019-08-07 | 2019-12-03 | 河海大学常州校区 | A kind of raising sun light utilization efficiency photovoltaic module |
| CN112786728A (en) * | 2021-01-08 | 2021-05-11 | 南京工程学院 | Solar photovoltaic cell with changed texture |
-
2011
- 2011-08-03 CN CN2011202800821U patent/CN202217686U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10416425B2 (en) | 2009-02-09 | 2019-09-17 | X-Celeprint Limited | Concentrator-type photovoltaic (CPV) modules, receiver and sub-receivers and methods of forming same |
| CN103607171A (en) * | 2013-10-30 | 2014-02-26 | 李敬宇 | Wide-combination pattern light-concentrating assembly |
| CN103618498A (en) * | 2013-12-09 | 2014-03-05 | 山东力诺光伏高科技有限公司 | Low-cost solar cell module |
| CN103618498B (en) * | 2013-12-09 | 2015-11-04 | 山东力诺光伏高科技有限公司 | A kind of low-cost solar battery component |
| US20170098729A1 (en) * | 2015-10-02 | 2017-04-06 | Semprius, Inc. | Wafer-integrated, ultra-low profile concentrated photovoltaics (cpv) for space applications |
| US10418501B2 (en) * | 2015-10-02 | 2019-09-17 | X-Celeprint Limited | Wafer-integrated, ultra-low profile concentrated photovoltaics (CPV) for space applications |
| CN106026900A (en) * | 2016-06-16 | 2016-10-12 | 昆山诃德新能源科技有限公司 | Low-power concentrating solar photovoltaic power generation module |
| CN106452339A (en) * | 2016-11-04 | 2017-02-22 | 上海空间电源研究所 | Low-temperature reflective concentrating solar cell array |
| CN107255368A (en) * | 2017-06-30 | 2017-10-17 | 西安交通大学 | A kind of full spectrum of solar energy of frequency division type low-concentration photovoltaic high power concentrator photo-thermal/coupled thermomechanics utilizes system |
| CN110534600A (en) * | 2019-08-07 | 2019-12-03 | 河海大学常州校区 | A kind of raising sun light utilization efficiency photovoltaic module |
| CN112786728A (en) * | 2021-01-08 | 2021-05-11 | 南京工程学院 | Solar photovoltaic cell with changed texture |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20130803 |