CN202307978U - Light gathering device applicable to solar energy cell - Google Patents
Light gathering device applicable to solar energy cell Download PDFInfo
- Publication number
- CN202307978U CN202307978U CN2011202137212U CN201120213721U CN202307978U CN 202307978 U CN202307978 U CN 202307978U CN 2011202137212 U CN2011202137212 U CN 2011202137212U CN 201120213721 U CN201120213721 U CN 201120213721U CN 202307978 U CN202307978 U CN 202307978U
- Authority
- CN
- China
- Prior art keywords
- inactive area
- light
- cell
- plane
- reflection
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Provided is a light gathering device applicable to a solar energy cell. The light gathering device is suitable for being used in a flat solar energy cell. By adding a reflection /refraction member to a position above the invalid area of the cell, the sunlight cast to the invalid area can be gathered to the valid area of the cell, thereby increasing the total power of the cell. The reflection/ refraction member can be made into a plane, a curved surface, a sawtooth surface, or other structures. As the gaps or blank areas can be left between cells when the cells are assembled into a module, and the conductive wire arranged above the cells also shields partial area, the invalid area is thus formed. With this light gathering device, the light loss resulting from the existence of the invalid area can be reduced by 60 to 99%. If a sunlight tracer is combined with the light gathering device for usage, the best light gathering effect can be achieved.
Description
Technical field
The present invention relates to solar battery technology, specifically, the present invention relates to a kind of design that increases panel solar battery module light utilization efficiency.
Background technology
Solar cell is a kind of device that utilizes photovoltaic effect solar energy to be converted into electric energy.1954, the U.S. prepared the AT&T Labs modern first silicon solar cell based on PN junction, and photoelectric conversion efficiency has reached 6%.Through the development of over half a century, the technology of solar cell is among continuous progress and maturation, and commercial applications is based on the solar cell of silicon the most widely at present.Mainly comprise monocrystalline silicon battery; Polycrystal silicon cell and amorphous silicon battery; Early stage in the 1970's; Companies such as Sharp, Philip and solar electric power begin to prepare the commercial batteries module of small size, and progressively begin to be applied to ground, to 1980 mid-nineties 90s increasing company begin to put into the research and development and the manufacturing field of solar cell.
Arrived the early 21st century; Solar cell begins formally to receive the concern energetically of various countries as a kind of mode of efficiently utilizing of clean energy resource; The international market is for the rush of demand of solar cell, and China begins to occupy more and more important position in the manufacturing field of solar cell.Solar cell has been widely used in street lamp, building surface, roof, power station etc.The form of utilizing of present solar cell mainly is that a series of solar battery sheets are formed solar modules or claimed solar panel, can use separately according to the difference of power or forms array and use solar panel then.
Because in the cell panel commonly used at present; To leave certain slit between the adjacent cell sheet; Carry out electric current collection and have conductiving metal strip usually on every battery sheet, these slits and bonding jumper can occupy certain area and form inactive area, and bonding jumper and slit have the width of 2mm to 3mm usually; If can the light of this part inactive area be collected the effective coverage, can the gross power of battery sheet further be promoted.
The present invention provides a kind of light collecting device, and the light that is incident to inactive area is collected into the effective coverage, thereby reduces energy loss, improves the power of battery, and this is equivalent under the situation that does not change battery itself, improve the efficient of battery.
Summary of the invention
The purpose of this invention is to provide the light collecting device that a kind of light that will expose to solar cell or battery module inactive area is collected into its effective coverage.
The objective of the invention is to realize like this: reflection or refractive component formation sunlight collecting device are installed at the upper space of solar cell inactive area; The feasible sunlight that exposes to inactive area etc. is transferred to the effective coverage; Wherein the panel solar battery of solar cell under a sun light intensity, using usually comprises silion cell, GaAs battery etc.It is characterized in that: the reflection or refractive component be installed in inactive area directly over; Wherein inactive area refers to not have the zone of light-sensitive material or the zone that light-sensitive material is blocked; Comprise white space, protective material zone, regions of conductive material etc., directly over refer to the direction in light positive incident time source.
Wherein, reflection or refractive component are positioned at the inactive area upper space, and can be adjacent cell panel surface through mode such as bonding be connected with cell panel fixes, and also can leave the cell panel certain distance and fix through additional frame.
Wherein, Reflection part can be the parts that have the plane of reflection or curved surface that utilize material with high reflectance to process; The angle of the tangent plane of optional position and cell plane should be between 0 ° to 90 ° in this plane or the curved surface; Reflection part can be that the metal material after the polishing or the element surface processed in any material are with methods such as plating, vapor deposition, sputter formation metallic reflective coating or directly paste reflectance coating; Mainly comprise one or more and alloy or compound in the metals such as silver, aluminium, stainless steel, titanium, nickel, cadmium, chromium, manganese, copper, zinc, germanium, tin, magnesium, gallium, gold, platinum, molybdenum, palladium, or be coated with the other materials such as glass, plastics, pottery, polymer of one or more and alloy or compound in the metals such as silver, aluminium, stainless steel, titanium, nickel, cadmium, chromium, manganese, copper, zinc, germanium, tin, magnesium, gallium, gold, platinum, molybdenum, palladium; Refractive component can be known lens element such as prism, concavees lens, convex lens, Fresnel lens etc.; It also can be element with special shape according to cell shapes and light distribution Demand Design; The material that these parts use can be a material known; Like transparent materials such as glass, acrylic resin, polyolefin resin, polycarbonate resins, these parts can be collected into the effective coverage with the light of inactive area through refraction or total reflection.
Wherein, For having the inactive area that rectangular shape maybe can be divided into rectangular shape; The reflection part of installing above it can have the inclined-plane that two symmetries are laid; Two inclined-planes overlap on the limit in inactive area centre position and enough sharply collecting sunlight as much as possible, limit and inactive area coincident at the inactive area edge, and the angle theta of two inclined-planes and cell plane formation should be between 5 ° to 89 °.
Because the inactive area width is less in the flat plate cells such as silion cell, under the situation of not using the sunlight follow-up mechanism, use the present invention can reach good light collecting effect; The slit that is 3mm for example for a width; The double inclined plane reflecting parts are set above it, and inclined-plane and cell plane angle are 80 °, and then these parts can make 3.6 hours positive mornings in just afternoon 3.6 hours; All sunlight that expose to this parts reflecting surface all are collected into the effective coverage near the 30mm scope of parts; And in exceeding the certain hour scope of this scope, device still can play a part and collect the effect that strengthens, and embodiment 8 has provided and specified.And if cooperation sunlight follow-up mechanism uses, then can remain the collection enhancing and reach optimum efficiency.
The present invention has following technique effect:
1, exposes to the sunlight of battery for scope at a certain angle; Can thereby its effective coverage that is collected into battery fully be avoided owing to the waste that exists inactive area to produce; And in exceeding the certain limit of this angular range; Can play the collection reinforced effects of part, use the present invention to make because inactive area exists the light loss that causes to reduce 60% to 99%.
2, the present invention is intended to collect the sunlight of inactive area waste, and as far as the effective coverage, its light intensity increases less, the technical problems such as heat radiation that can not cause concentrating solar battery to face.
3, cooperate the sunlight follow-up mechanism to use, the effect of gatherer is maximized all the time.
4, the present invention can be applicable to the solar cell of all slab constructions.
Description of drawings
Below, specify embodiments of the invention in conjunction with accompanying drawing, wherein:
Fig. 1 is the solar panel sketch map;
Fig. 2 is the sketch map of a battery sheet;
Fig. 3 is the sketch map after adding the double inclined plane reflecting parts above the battery sheet partial invalidity zone;
Fig. 4 has added the battery module sketch map of double inclined plane reflecting parts for the cell panel inactive area;
Fig. 5 is for adding the profile of double inclined plane reflecting parts above the battery inactive area;
Fig. 6 is for adding the profile of bi-concave reflection part above the battery inactive area;
Fig. 7 is for adding the profile of biconvex reflection part above the battery inactive area;
Fig. 8 is for adding the profile of double inclined plane refractive component above the battery inactive area;
Fig. 9 is for adding the profile of bi-concave refractive component above the battery inactive area;
Figure 10 is for adding the profile of biconvex refractive component above the battery inactive area;
Figure 11 is for adding the profile of zigzag refractive component above the battery inactive area;
Figure 12 is that θ is the sketch map that 80 ° double inclined plane reflecting parts are collected oblique incidence sunlight;
Embodiment
Below, the preferred embodiment of the present invention is described.But the present invention is not limited in following embodiment.
Below enumerating what relate to concrete collecting effect or modular structure among the embodiment is that example describes with solar panel shown in Figure 1 all; Fig. 1 is the solar panel sketch map; Wherein 1 is battery sheet effective coverage, and 2 is the cell panel base plate, and 3 is the gap between the battery sheet.
Fig. 2 is the structural representation of a representative cells sheet, and 4 is wide bus among the figure, and 5 is narrow bus.If the battery sheet is the square of length of side 120mm, wide bus width is 2mm, the wide 3mm of two battery sheet break joints, and the ratio that the formed invalid of then wide bus and slit accounts for the gross area is about 8%.Fig. 3 is the sketch map after adding the double inclined plane reflecting parts above the partial invalidity zone of this battery sheet; Because common narrow bus width is narrow; Off-energy is few, gets final product so only on the slit between wide bus and the two battery sheets, the light collecting part is set, and 6 is the double inclined plane reflecting part.Fig. 4 has added the battery module sketch map of double inclined plane reflecting parts for the cell panel inactive area.
Present embodiment is provided with the double inclined plane reflecting parts above the inactive area of battery, as shown in Figure 5, and 7 is inactive area, and 8 is reflection part, and the reflecting surface of these parts is a magnetron sputtering aluminium film, and its visible reflectance is between 90% to 95%.The angle theta of inclined-plane and cell plane is when changing between 85 ° for 60 °; Under the sunlight of AM1.5 (a standard sun light intensity); When sunlight normal incidence; Account for the cell panel of the gross area 8% for invalid, add that this reflection part compares with not adding this reflection part, gross efficiency can promote 6% to 8.5%.
Present embodiment is provided with the bi-concave reflection part above the inactive area of battery, as shown in Figure 6, and 9 is reflection part, and the reflecting surface of these parts is a magnetron sputtering aluminium film, and its visible reflectance is between 90% to 95%.Reflecting surface arbitrarily the angle theta of any tangent line and cell plane between 0 ° to 90 °.Under the sunlight of AM1.5, when sunlight normal incidence, account for the cell panel of the gross area 8% for invalid, add that this reflection part compares with not adding this reflection part, gross efficiency can promote 5.8% to 8.5%.
Present embodiment is provided with the biconvex reflection part above the inactive area of battery, as shown in Figure 7, and 10 is reflection part, and the reflecting surface of these parts is a magnetron sputtering aluminium film, and its visible reflectance is between 90% to 95%.Reflecting surface arbitrarily the angle theta of any tangent line and cell plane between 0 ° to 90 °.Under the sunlight of AM1.5, when sunlight normal incidence, account for the cell panel of the gross area 8% for invalid, add that this reflection part compares with not adding this reflection part, gross efficiency can promote 5.6% to 8.3%.
Present embodiment is provided with the double inclined plane refractive component above the inactive area of battery, as shown in Figure 8, and 11 is refractive component.
Present embodiment is provided with the bi-concave refractive component above the inactive area of battery, as shown in Figure 9, and 12 is refractive component.
Present embodiment is provided with the biconvex refractive component above the inactive area of battery, shown in figure 10, and 13 is refractive component.
Embodiment 7
Present embodiment is provided with the zigzag refractive component above the inactive area of battery, shown in figure 11, and 14 is refractive component.
Embodiment 8
Present embodiment explanation is when being provided with the double inclined plane reflecting parts above inactive area; For the width slit that is 3mm; The double inclined plane reflecting parts are set above it; Inclined-plane and cell plane angle are 80 °, and when then skew was no more than 55 ° before and after the normal incidence light, all sunlight that expose to this parts reflecting surface all were collected into the effective coverage near the 30mm scope of parts.Like Figure 12, the O point is positioned at the top of reflecting surface, when the included angle A OB of incident ray AO and vertical direction is 55 °; Reflection ray OC can just get at the other end that reaches the wide effective coverage for 30mm of battery, and when included angle A OB when 55 ° are reduced to 0 °, it is mobile to the E point that the C on the reflection ray names a person for a particular job; Thereby this light can be collected into the battery effective coverage all the time, and is lower than the light at O point place, and its reflection ray will be parallel with OC; And below OC, thereby all throw the effective coverage that the light on inclined-plane so far all can be reflected onto battery, when AOB becomes negative value and continues to change; This effect will continue, and cross the extended line of EO until OA.Therefore, in 55 ° the scope of skew, all sunlight that expose to reflecting surface all can be collected into the effective coverage about the normal incidence direction.Because the sunlight direction per hour changes 15 °; This just is equivalent under the situation that does not have the sunlight follow-up mechanism; Battery is put over against solar noon sun, at noon before and after in 3.6 hours, the sunlight that is projected to battery surface all can all be collected; And after exceeding this time scope, the effect that solar collector strengthens can reduce gradually.
Claims (5)
1. light collecting device that is used for solar cell; Wherein solar cell is the common panel solar battery that under a sun light intensity, uses; It is characterized in that: the reflection or refractive component be installed in inactive area directly over; Wherein inactive area refers to not have the zone of light-sensitive material or the zone that light-sensitive material is blocked, and comprises white space, protective material zone, regions of conductive material, directly over refer to the direction in light positive incident time source.
2. light collecting device as claimed in claim 1 is characterized in that reflection or refractive component are positioned at the inactive area upper space.
3. light collecting device as claimed in claim 1; It is characterized in that utilizing material above inactive area, to process reflection part with high reflectance; The face that these parts are used to reflect can be plane or curved surface; The angle of the tangent plane of optional position and cell plane should be between 0 ° to 90 ° in this plane or the curved surface; Reflection part can be that the metal material after the polishing or the element surface processed in any material are with plating, vapor deposition, sputtering method formation metallic reflective coating or directly paste reflectance coating; Mainly comprise silver, aluminium, stainless steel, titanium, nickel, cadmium, chromium, manganese, copper, zinc, germanium, tin, magnesium, gallium, gold, platinum, molybdenum, palladium, or be coated with glass, plastics, pottery, the polymer of silver, aluminium, stainless steel, titanium, nickel, cadmium, chromium, manganese, copper, zinc, germanium, tin, magnesium, gallium, gold, platinum, molybdenum, palladium.
4. light collecting device as claimed in claim 1; It is characterized in that utilizing refractive index above inactive area, to process refractive component greater than 1 material; These parts can be known lens element such as prism, concavees lens, convex lens, Fresnel lens; The material that these parts use can be known transparent material, like glass, acrylic resin, polyolefin resin, polycarbonate resin.
5. light collecting device as claimed in claim 3; It is characterized in that for inactive area with rectangular shape; The reflection part of installing above it has the inclined-plane that two symmetries are laid; Two inclined-planes overlap on the limit in inactive area centre position and enough sharply collecting sunlight as much as possible, limit and inactive area coincident at the inactive area edge, and the angle theta of two inclined-planes and cell plane formation should be between 5 ° to 89 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202137212U CN202307978U (en) | 2011-12-28 | 2011-12-28 | Light gathering device applicable to solar energy cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202137212U CN202307978U (en) | 2011-12-28 | 2011-12-28 | Light gathering device applicable to solar energy cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307978U true CN202307978U (en) | 2012-07-04 |
Family
ID=46376812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202137212U Expired - Fee Related CN202307978U (en) | 2011-12-28 | 2011-12-28 | Light gathering device applicable to solar energy cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307978U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969384A (en) * | 2012-12-20 | 2013-03-13 | 英利能源（中国）有限公司 | Solar battery component and packaging method thereof |
| CN105158838A (en) * | 2014-05-28 | 2015-12-16 | 上海晶玺电子科技有限公司 | Light guide element and solar cell module |
-
2011
- 2011-12-28 CN CN2011202137212U patent/CN202307978U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969384A (en) * | 2012-12-20 | 2013-03-13 | 英利能源（中国）有限公司 | Solar battery component and packaging method thereof |
| CN102969384B (en) * | 2012-12-20 | 2015-08-19 | 英利能源（中国）有限公司 | A kind of solar module and method for packing thereof |
| CN105158838A (en) * | 2014-05-28 | 2015-12-16 | 上海晶玺电子科技有限公司 | Light guide element and solar cell module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202930413U (en) | Solar module device | |
| EP1928028A1 (en) | Photovoltaic roof tile system based on a fluorescent concentrator | |
| CN101923209B (en) | Light harvesting device | |
| KR102120923B1 (en) | Double sided solar light concentrator using curved reflector | |
| US20110197968A1 (en) | Solar collector panel | |
| CN202307978U (en) | Light gathering device applicable to solar energy cell | |
| CN103646982A (en) | Light trapping structure for thin film solar cell and manufacturing method thereof | |
| CN201498523U (en) | Pantile photovoltaic concentrator module | |
| CN102737847A (en) | Light collecting device for a sensitized solar battery | |
| CN102254962A (en) | Solar tile-shaped grooved cylindrical light-gathering device | |
| CN201576123U (en) | Pantile optical block | |
| CN102738287A (en) | Light collecting device for a solar battery | |
| KR102165092B1 (en) | Double sided solar light concentrator using Valley Type reflector | |
| EP2528110B1 (en) | Photovoltaic system for efficient solar radiation collection and solar panel incorporating same | |
| CN203608146U (en) | Flat type solar concentrator | |
| CN102681047A (en) | Composite-structure Fresnel lens | |
| JP4313841B1 (en) | Solar lens and solar-powered equipment | |
| CN205159338U (en) | Photovoltaic assembly | |
| CN202307540U (en) | Light collecting device for sensitized solar cell | |
| CN202423346U (en) | Light collecting apparatus | |
| CN102201477B (en) | Solar concentrating method and device based on periodic microstructure | |
| CN102081223B (en) | Solar photovoltaic L type condenser | |
| CN201742327U (en) | Solar energy side focusing device | |
| CN102738269A (en) | Solar module | |
| CN102191836A (en) | Pantile condenser battery assembly |
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: 20120704 Termination date: 20141228 |
|
| EXPY | Termination of patent right or utility model |