CN102315796A - The flat photovoltaic transducer of modified model - Google Patents
The flat photovoltaic transducer of modified model Download PDFInfo
- Publication number
- CN102315796A CN102315796A CN2011101188052A CN201110118805A CN102315796A CN 102315796 A CN102315796 A CN 102315796A CN 2011101188052 A CN2011101188052 A CN 2011101188052A CN 201110118805 A CN201110118805 A CN 201110118805A CN 102315796 A CN102315796 A CN 102315796A
- Authority
- CN
- China
- Prior art keywords
- reflective
- section
- cross
- receiver
- groove
- 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.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 230000003287 optical effect Effects 0.000 claims abstract description 24
- 230000008033 biological extinction Effects 0.000 claims abstract description 6
- 239000012780 transparent material Substances 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The flat photovoltaic transducer of modified model is evenly arranged reflective groove in the plane as the day light collector, and reflective trench bottom is the extinction groove, is used to install photovoltaic receiver spare, and reflective slot cross-section is mouthful little trumpet type in big bottom; The cross section of reflective groove two lateral reflection films is a hyperbola.It between the trench bottom hyperbola flat photovoltaic receiver; Or the cross section of reflective groove both sides reflectance coating is straight line, and the section constitution of reflective groove is trapezoidal, and corresponding at trench bottom cross sectional shape to be installed be the optical receiver of circular arc or straight line.Their conversion efficiency can both improve about 5-6% when the present invention increased three times in luminous intensity.Final finished of the present invention is tabular, and is identical with flat photovoltaic converter, is suitable for replacing the building materials on roof most.
Description
Technical field
The present invention relates to a kind of improved solar collector.The collect means that relates to a kind of pure optics, irrelevant with the material and the performance of photovoltaic receiver spare.Can mate with any photovoltaic receiver spare.
Background technology
People set up the expectation that the advantage energy is developed and utilized gradually now.Owing to do not supervene pollution in the use; It is especially welcome that heliotechnics seems; Yet the energy density that incides earth surface owing to light is very low; And costing an arm and a leg of photovoltaic receiver spare makes the direct one-time investment of making solar power generation with photovoltaic receiver considerably beyond other electricity-generating method.But, because solar power generation has the advantage that it can not replace, in some special application, for example artificial satellite and high mountain weather station, it is still unique selection.For fairly large solar power generation, general countermeasure is to use the daylight collector, with refraction or reflection means large-area daylight is accumulated on the receiver of small size very.So just reduced the expense of receiver widely.Yet the focusing of high power has brought the needs in sun-tracing orientation, and the focusing of high power needs accurate tracing equipment.So High-powered Focus is only applicable to large-scale (one thousand MW class) facilities.For in, small-scale solar power generation, threshold height are at present maximum obstacles.Under the disadvantageous condition of one-time investment collector terminal, flat photovoltaic converter has still developed many applications.Be listed as like the weather station, the signal indicator light, conceptual energy saving building, or the like.It is thus clear that, if the one-time investment of flat photovoltaic group transducer is lowered, increase its adaptability simultaneously, can open up extensively its application category greatly.
Summary of the invention
The present invention seeks to: a kind of flat photovoltaic transducer, especially little light concentrating times are provided but static collector, in, the cost of small-scale solar power plant is lowered the threshold.Main to as if can be the solar power plant that is contained in or replaces the roof.Design of the present invention is to utilize the particularity of sun moving law.
Technical scheme of the present invention is: a kind of flat photovoltaic transducer, evenly arrange reflective groove in the plane, and reflective trench bottom is the extinction groove, is used to install photovoltaic receiver spare, the cross section of reflective groove two lateral reflection films is a hyperbola.It between the trench bottom hyperbola flat receiver; Or the cross section of reflective groove both sides reflectance coating is straight line, and the section constitution of reflective groove is trapezoidal, the optical receiver that is shaped as circular arc or straight line (optical receiver on plane) in corresponding receiver cross section at trench bottom.Especially constitute flat photovoltaic transducer by a plurality of (parallel) unit reflection groove.The receiver that is shaped as circular arc in receiver cross section is cylindrical receiver, and circular arc is to projecting inward.
Parallel reflective groove is embedded in or fills transparent material uniformly, constitutes tabular.
The reflection groove of each unit, its cross section is shown in Fig. 1 (a, b), and two kinds of reflection groove cross sections have his own strong points.The common ground in these two kinds of reflection groove cross sections is: reflectance coating cross section and receiver cross section all are the mutually orthogonal curve in the plane geometry.This mutually orthogonal relation makes and when doing the light reflective analysis with geometric optics, has reduced amount of calculation widely.Certainly, available geometric surface is a lot, has only introduced two kinds easily of Theoretical Calculation here.Other are that design demand is done more complicated calculating.Fig. 2 has shown that sunlight is directed to the situation of recipient after different angles gets into condenser groove.A kind of structure of the formation of reflective groove is that reflectance coating is embedded or inserts transparent plate shape material (glass or polymethyl methacrylate) inside, constitutes flat finished product, and tabular is regarded as by bar element and evenly formed, and bar element distributes at east-west direction.
It is the reflective groove of hyperbola that technical scheme of the present invention is to use the cross section, and the bottom of reflective groove is the optical receiver cross section, and reflective trench bottom can be the plane, also can be curved surface, scribbles the reflector at two side channels of this reflective groove, and the reflector is metallic reflector especially.According to the extended line of the light that incides reflector layer will with the contact of a curve of structure; Can try to achieve the parameter of institute's curve construction; Thereby confirm its shape; By making the incident light of secondary incident after reflective groove reflection also can confirm the hyperbola parameter in cross section conversely, utilize such method to build suitable solar collector according to the needs of accepting angle with to be constructed light tangent.For the hyperbola of having confirmed, can select different height (comprising width) or position above that, the face of accepting of reflective like this groove and bottom area ratio are just adjustable, thus the optically focused degree is adjustable.
Reflective groove can be filled with transparency material; This transparency material can be dielectric constants such as glass, plastics greater than one material; Reflective metals for reflective groove then is to select silver, aluminium etc. for use, and reflectance coating also can be a layer dielectric the more, and reflection efficiency is higher.
The bottom that is used for the reflective groove of day light collector can be connected according to the shape of bottom had flat or light-sensitive unit such as curved photocell; Prepare the reflective groove of even strip and the photocell assembly of photronic special slab construction is installed in the bottom, thereby utilize the light of collecting from the bottom more fully to produce electric power.
Corresponding optical receiver cross section at trench bottom be shaped as the plane time, the central authorities of optical receiver add a upright two-sided receiver part, the height of upright two-sided receiver is shorter than the width of optical receiver, to increase the reception of light.Overall optical receiver cross section becomes a font structure of falling T, and is better when especially reflective slot cross-section is straight line.
Can a series of such solar collector be integrated on the plate, form the solar panel of an integral body, such collecting board can have maximum solar collector density.The flat board of the present invention of gross area is at the solar components of accepting excellent existing pure whole plane on efficient and the gross energy.
The present invention can build solar collector according to the light angle of required acceptance, need not go moving of sun-tracing, and its optically focused degree is adjustable.
The invention has the beneficial effects as follows: the present invention does not attempt gathering and assembles sunlight in North and South direction to photovoltaic receiver with reflectance coating at east-west direction.The present invention assembles the annual of multiple and has only about three times.But compare with the flat receiver of same light-receiving area, only the getable electric energy of receiver with 1/3rd areas but is slightly more than three times.Reason is: the semiconductor photovoltaic receiver all has a common trait, and the conversion efficiency that is exactly them all has connection with receiving luminous intensity.Their conversion efficiency can both improve about 5-6% when luminous intensity increases three times.Final finished of the present invention is tabular, and is identical with flat photovoltaic converter, is suitable for replacing the building materials on roof most.Because it is static, do not need tracing equipment fully, with flat receiver same advantage easy to use is arranged.But its gathering multiple makes it that the superiority on the cost arranged.
1. the present invention is the modified model of plate photovoltaic transducer, has therefore inherited the advantage of plate photovoltaic converter.
2. reduce semiconductor transducer (receiver or photovoltaic cell) area about 2/3, reduced cost widely.
3. under identical light-receiving area condition, the dull and stereotyped photovoltaic converter of comparing only adopts the receiver of 1/3 area or photovoltaic cell can obtain 5～6% electric energy more.
4. compare with the identical plate photovoltaic converter of semiconductor transducer area, can obtain the electric energy about 3 times.
5. all optical reflection faces all by the transparent material sealing, are not attacked by weather.
6. the area of all exposures is transparent medium (glass, macromolecule light transmissive material etc.), and bigger wear-resisting and water proofing property is arranged, and can directly replace roof material.
To with the sunlight incident direction, compare with plate photovoltaic converter, bigger adaptability is arranged.
8. can be designed as half state type,, can obtain to increase again the benefit of 1 times of electric energy to regulate first power half a year to the maintenance expenditure that increases.
Description of drawings
The improvement project of Fig. 1, two kinds of flat photovoltaic converter of demonstration the present invention, wherein
Fig. 1 a reflectance coating 1 is a hyperboloid, and photovoltaic transducer 2 is the plane.If the equation in hyperboloid cross section is hyperbola x
2/ a
2+ y
2/ b
2=1 and a wherein, b must satisfy a
2+ b
2=1, then selected H and W have just decided a and b.Long measure among the figure be between two focuses of hyperbola distance 1/2nd.
Fig. 1 b reflectance coating is the plane, and the photovoltaic transducer is the garden cylinder.We use the radius of garden post to be the long measure among the figure.With the garden heart is the origin of coordinates, if the coordinate in the reflectance coating upper right corner is x, y is H then, W and x, and the relation of y is: W=2x;
reflectance coating and transducer are long groove shape and embed transparent material inside; The inside and outside transparent material that all embeds of reflectance coating, set becomes a big homogeneous material dull and stereotyped 3 then.
Fig. 2, represent that two kinds of reflective membranes of the present invention designs (hyperbolic chart 2a, 2b, 2c, 2d and plane Fig. 2 e, 2f, 2g, 2h) depart from the situation of 3 °, 8 °, 14 °, 23.44 ° daylight entering condenser groove back reflections at daylight and its normal respectively.
Wherein, Fig. 2 a, 2e be 3 ° be high noon daylight divide with it in the spring (autumn) before and after 12 days the number of degrees of deviation;
Fig. 2 b, 2f be 8 ° be high noon daylight divide with it in the spring (autumn) before and after 32 days the number of degrees of deviation;
Fig. 2 c, 2g be 14 ° be high noon daylight divide with it in the spring (autumn) before and after 58 days the number of degrees of deviation;
Fig. 2 d, 2h be 23.44 ° be high noon daylight divide the number of degrees with winter (summer) deviation extremely in the spring (autumn), also be the maximum deviation of daylight.
Fig. 3, be two kinds of reflective membranes design (hyperbolic chart 3a and plane graph 3b) mean annual contour maps of light concentrating times, abscissa is the width W of concentrator unit, and ordinate is the height H of concentrator unit, and the explanation of Fig. 1 is seen in the definition of H and W.
The high benefit that two kinds of designing institutes reach is identical.When smaller, the benefit of hyperboloid type slightly has superiority high, wide.
The relation of the light concentrating times of Fig. 4, this transducer of curve representation and North and South direction solar angle [adopt among Fig. 3 (a) " A " performance plot of some parameter (wide=0.3, high=2.8) the dull and stereotyped photovoltaic transducer of gained modified model].The scope that dash area changes for the sunlight North and South direction among the figure (± 23.44 degree).
Fig. 5, two kinds of reflective membranes design (hyperbolic chart 5a and plane Fig. 5 b) light concentrating times half a year (Spring Equinox is to the Autumnal Equinox) M contour figure, high, wide compare bigger in, the light concentrating times that obtains exceeds one times than mean annual contour map (Fig. 3).Abscissa is the width of concentrator unit among the figure, and ordinate is the height of concentrator unit.
In order to strengthen the efficient of receiver, can change the structural representation of receiver shape among Fig. 6, wherein:
Fig. 6 a has shown the light reflection condition of cross section for the design of hyperbola reflectance coating,
Fig. 6 b is the details drawing of the bottom of Fig. 6 a;
Fig. 6 c shown the situation behind the receiver alteration of form,
Fig. 6 d has shown the light reflection condition of another kind of design,
Fig. 6 e is the details drawing of Fig. 6 d; Fig. 6 f shows the structure that face of cylinder receiver is made into the plane receiver,
Add upright receiver 4 parts among Fig. 6 f, crown height is close among upright height and Fig. 6 d, preferably equates, upright receiver is two-sided receiver, and the receiver cross section is the T type.
Fig. 7, through changing the shape of reflecting surface, can make the daylight collector obtain the best light direction that receives.To adapt to the installation on different latitude area or different gradient roof.Wherein arrow representes that the best receives light direction.
Embodiment
As shown in Figure 1.For the shape of the reflection groove that reflectance coating constitutes is described, reflective slot cross-section is mouthful little trumpet type in big bottom.Might as well regard flat finished product by bar element as and form (reflective groove is parallel to east-west direction when installing).The reflectance coating of each unit is processed the groove shape, and there are two kinds of styles in its cross section shown in Fig. 1 (Fig. 1 a, b).Two kinds of styles have his own strong points.First kind of style reflectance coating cross section is hyperbola.The trench bottom cross section is to be flat receiver between the hyp reflective membrane, and generally speaking, hyperbola adopts confocal hyperbola, and the both sides hyperbola can adopt the hyperbola of different eccentricities.(shape of receiver has several kinds of variations again, states as follows) second kind of style reflectance coating cross section is straight line, and the receiver cross section is a circular arc.The common ground of these two kinds of styles is: reflectance coating cross section and receiver cross section all are the mutually orthogonal curve in the plane geometry.This mutually orthogonal relation makes and when doing the light reflective analysis with geometric optics, has reduced amount of calculation widely.Certainly, available geometric surface is a lot, has only introduced two kinds easily of Theoretical Calculation here.Other are that design demand is done more complicated calculating.
1, the structure of reflection groove has multiple mode, processes flute profile like metal or plastic sheet, and at its reflective plane plating or subsides reflective coating, the inside and outside of reflective groove all filled or the embedding transparent material, like transparent plastics such as glass, PMMA, PC or PS.The even in the plane parallel reflective groove of layout; Reflective slot cross-section is mouthful little trumpet type in big bottom, and reflective trench bottom is extinction groove position, is used to install photovoltaic receiver spare; Reflective groove lateral reflection film cross section can be hyperbola, is flat photelectric receiver between the trench bottom hyperbola; Or reflective groove (reflectance coating) cross section is straight line, constitutes trapezoidal straight line, corresponding receiver cross section at trench bottom be shaped as circular arc or straight line; The receiver cross section be shaped as circular arc the time, then can be several parallel strip photelectric receivers to be arranged in the cross section be circular arc, circular arc is inwardly protruded at bottom land.
Reflection groove is embedded or filling transparent plate shape material (all being filled with macromolecule transparent materials such as glass or polymethyl methacrylate inside and outside the groove) inside, constitutes flat finished product,
Tabular is regarded as by bar element and is evenly formed, and bar element distributes at east-west direction.The cell wall of reflective groove scribbles reflectance coating, and reflective groove prepares the back and fills with transparent glass or plastics, as carrying out through dull and stereotyped extrusion process.The bottom position of extinction groove is the plane, is used to place flat photovoltaic receiver spare.The bottom of extinction groove is a curved surface, be combined with curved photovoltaic receiver spare, or strip is combined into.The parallel integrated formation one dull and stereotyped maximum solar panel of density that forms of n bar groove.
The thickness of the general decision plate of height meeting of reflective groove, according to the definition of Fig. 3 and Fig. 1, it roughly is the height of reflective groove promptly that the present invention can select the thickness of 0.1 to 6 centimetre of thickness of slab, selects light concentrating times according to Fig. 3, design bottom land width.The thickness of roofing board especially can be 1.5 to 4 centimetres.
The cross section is that the center line of reflective groove of hyperbola or trapezoidal line reflection groove and the vertical line of surface plate are provided with angle, and angle is decided according to the inclined-plane is installed.Make the center line that the back reflection groove is installed corresponding the direction of the sun.
Fig. 2 has shown that sunlight is directed to the situation of recipient after different angles gets into condenser groove.
2. the calculating of annual light concentrating times
For each above style, the selection of each group parameter (Gao Yukuan), we can calculate light concentrating times, i.e. the ratio of light-receiving area and receiver area.According to the variation in sun orientation in the middle of a year, we can also calculate the annual of light concentrating times.Fig. 3 expresses the relation (definition of high H and wide W is with reference to the explanation of Fig. 1) of annual light concentrating times and design parameter with contour map.Because of the present invention only relates to the gathering of light, irrelevant with the efficient of photovoltaic receiver spare, so these figure are suitable for and any photovoltaic receiver.Need point out that the A point among Fig. 3 (a) seemingly low power counts up to the optimal parameter of full state type collector.Corresponding this parameter reflectance coating cross section and receiver cross section are as shown in Figure 4, and according to the calculating light concentrating times of Fig. 3, promptly the ratio of light-receiving area and receiver area can obtain unlimited execution mode.Certainly the actual reflectance of film has decline, with the optically focused degree of theory gap slightly.But implementation basis of the present invention can be established.
3. the calculating of semi-fixed type light concentrating times
If sacrificed too many gathering multiple for complete static requirement.Then can consider the scheme of a compromise.If consider can every half a year with the light direction that receives of manual type adjustment receiver, then we can calculate the average of light concentrating times half a year.All embodiments of the invention shown in Fig. 5 a, b.We notice that average light concentrating times has increased above one times.Every half a year, adjustment once should not be too big cost, because it can combine with normal maintenance or cleaning.Certainly it is also conceivable that more frequent adjustment number of times, but high light concentrating times also can be brought high reflection loss.Fig. 6 provides in order to strengthen the efficient of receiver, can change the structure of receiver shape, promptly at bottom land,
Fig. 6 c has shown that with the situation behind the receiver alteration of form bottom and the bottom land of at least one side reflective membrane of reflective groove also are designed with optical receiver 5, are two sides among the embodiment, and then the cross section of this optical receiver and reflective bottom land optical receiver is trapezoidal.Fig. 6 c is that the cross section is the reflective groove of hyperbola, and the structure of Fig. 6 c goes for the structure of Fig. 6 e and Fig. 6 f equally, and this structured light receiver receiving efficiency than bottom surface plane generally is slightly high.
Add a upright receiver part among Fig. 6 f, crown height is close among upright height and Fig. 6 d, preferably equates, upright receiver is two-sided receiver, and the receiver cross section is the T type, has both increased to receive optical efficiency, importantly simplifies manufacture craft.
4. the consideration of many reflections
The reflective metals of reflective groove then is to select silver, aluminium etc. for use, and reflectance coating also can be a multilayer dielectric film, and reflection efficiency is higher, and the structure of plated film and technology all are existing mature technique.In the calculating of above light concentrating times, we are assumed to 100% to reflection efficiency.That yes is unpractical for this.If the loss of each reflection is 15%, then be 3 receiver in average light concentrating times, its average reflection number of times is about 0.67, and the loss of reflection should be 10%.To average light concentrating times is 7 receiver, and then the loss of reflection will be increased to 24%.The loss that higher light concentrating times then reflects will increase sooner, becomes the exponential relation.Therefore, the design of high light concentrating times must have better controlled to the reflection efficiency of reflectance coating.Semifixed reflecting condenser is mentioned in the front can improve light concentrating times with the light direction that receives that manual type is adjusted receiver.But high light concentrating times also can be brought high reflection loss.Whether the biannual adjustment of many whats has tangible economic interests to make according to the reflection characteristic of reflectance coating is analyzed the back decision.
5. the consideration of receiver incidence angle
The nonimaging formula concentrating method that the present invention adopts makes some through repeatedly reflecting the light that just arrives at receiver, and very big incidence angle is arranged when arriving at.This point is very high to the requirement of receiver.Might as well change reception type shape in order to adapt to the receiver that can not satisfy high incidence angle.Cost to increase the receiver area remedies.Fig. 6 has shown two kinds of schemes.Concrete scheme must be made after knowing the receiver characteristic and analyze decision.
6. manufacturing process
Principle of the present invention is pure geometric optics, and therefore, the size of each unit has the very big degree of freedom.Whole tabular finished product is made up of the unit, and the degree of freedom is bigger.Can decide by the technology of taking fully.A direct scheme is: process strip with transparent material, four faces of strip are respectively the plane of incidence, two reflectings surface and receiver face, and two reflectings surface plate reflectance coating.The face of acceptance can be installed the photovoltaic transducer or directly plate the film photovoltaic transducer at this face.Then, be arranged in tabular, insert the space between the transducer, to increase mechanical strength and sealing with same material.The desired technology of this programme relatively ordinary flat type photovoltaic transducer wants high, and being prepared into assembly has multiple structure, such as being that reflective groove surface plate is squeezed earlier, photovoltaic cell component is installed at last, constitutes assembly of the present invention.
7. adapt to the consideration of roof pitch
It is exactly its normal direction that the best of a flat photovoltaic receiver receives light direction.As a fixing photovoltaic converter or receiver, its orientation should be the mean direction of sunlight in the middle of 1 year.This direction is exactly to withstand on rotation to the south and local latitude angle same in the meridian plane from the sky.Therefore, obtain electric energy on the roof if a flat photovoltaic receiver is laid immediately on, then the normal on roof must towards or near this direction.Otherwise need adjust direction with support, thereby improve cost and maintenance needs.Receiver of the present invention has superiority than dull and stereotyped receiver in this point.The reflection groove that the reflectance coating of receiver of the present invention constitutes can be adjusted the best that direction makes it and be subjected to light direction to depart from its normal in manufacture process, as shown in Figure 7.Like this, receiver of the present invention just can be laid immediately on the more roof.
Numeral is all referring to the explanation of Fig. 1 among the figure.
Claims (10)
1. a flat photovoltaic transducer is characterized in that evenly arranging reflective groove in the plane as the day light collector, and reflective trench bottom is the extinction groove, is used to install photovoltaic receiver spare, and reflective slot cross-section is mouthful little trumpet type in big bottom; The cross section of reflective groove two lateral reflection films is a hyperbola.It between the trench bottom hyperbola flat photovoltaic receiver; Or the cross section of reflective groove both sides reflectance coating is straight line, and the section constitution of reflective groove is trapezoidal, and corresponding at trench bottom cross sectional shape to be installed be the optical receiver of circular arc or straight line.
2. flat photovoltaic transducer according to claim 1 is characterized in that being embedded in or filling transparent material at reflective groove, constitutes dull and stereotyped.
3. flat photovoltaic transducer according to claim 1 and 2, the bottom that it is characterized in that the reflective groove of this day light collector is connected according to the shape of bottom has light-sensitive units such as flat or curved photocell to constitute the photocell assembly of special slab construction.
4. flat photovoltaic transducer according to claim 1 and 2 is characterized in that the cell wall of reflective groove scribbles silver, aluminium or multilayer dielectricity reflectance coating.
5. flat photovoltaic transducer according to claim 1 and 2; It is characterized in that reflective slot cross-section is a straight line; The optical receiver cross section of trench bottom be shaped as the plane time, the central authorities of optical receiver add a upright two-sided receiver part, the height of upright two-sided receiver is shorter than the width of optical receiver; Increase the reception of light, overall optical receiver cross section becomes a font structure of falling T.
6. flat photovoltaic transducer according to claim 1 and 2 is characterized in that the bottom of at least one side reflective membrane of reflective groove and bottom land also are designed with optical receiver, and the cross section face of this optical receiver and reflective bottom land optical receiver is trapezoidal.
7. flat photovoltaic transducer according to claim 5 is characterized in that the bottom of at least one side reflective membrane of reflective groove and bottom land also are designed with optical receiver, and the cross section face of this optical receiver and reflective bottom land optical receiver is trapezoidal.
8. flat photovoltaic transducer according to claim 1 and 2 is characterized in that the cross section is that the center line of reflective groove of hyperbola or trapezoidal line reflection groove and the vertical line of surface plate are provided with angle.
9. flat photovoltaic transducer according to claim 5 is characterized in that the cross section is that the center line of reflective groove of hyperbola or trapezoidal line reflection groove and the vertical line of surface plate are provided with angle.
10. flat photovoltaic transducer according to claim 2 is characterized in that 0.1 to 6 centimetre of thickness of slab
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101188052A CN102315796A (en) | 2010-07-05 | 2011-05-09 | The flat photovoltaic transducer of modified model |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010216618 | 2010-07-05 | ||
| CN201010216618.3 | 2010-07-05 | ||
| CN2011101188052A CN102315796A (en) | 2010-07-05 | 2011-05-09 | The flat photovoltaic transducer of modified model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102315796A true CN102315796A (en) | 2012-01-11 |
Family
ID=45428668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101188052A Pending CN102315796A (en) | 2010-07-05 | 2011-05-09 | The flat photovoltaic transducer of modified model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102315796A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877865A (en) * | 2005-06-06 | 2006-12-13 | 通用电气公司 | Optical concentrator for solar cells |
| US20080048102A1 (en) * | 2006-08-22 | 2008-02-28 | Eastman Kodak Company | Optically enhanced multi-spectral detector structure |
| US20080236651A1 (en) * | 2007-04-02 | 2008-10-02 | Solaria Corporation | Solar cell concentrator structure including a plurality of concentrator elements with a notch design and method having a predetermined efficiency |
-
2011
- 2011-05-09 CN CN2011101188052A patent/CN102315796A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877865A (en) * | 2005-06-06 | 2006-12-13 | 通用电气公司 | Optical concentrator for solar cells |
| US20080048102A1 (en) * | 2006-08-22 | 2008-02-28 | Eastman Kodak Company | Optically enhanced multi-spectral detector structure |
| US20080236651A1 (en) * | 2007-04-02 | 2008-10-02 | Solaria Corporation | Solar cell concentrator structure including a plurality of concentrator elements with a notch design and method having a predetermined efficiency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Abojela et al. | Current prospects of building-integrated solar PV systems and the application of bifacial PVs | |
| CN202930413U (en) | Solar module device | |
| Hong et al. | Performance study of a new type of transmissive concentrating system for solar photovoltaic glass curtain wall | |
| US20190190443A1 (en) | Arrangements of a plurality of photovoltaic modules | |
| Li | Design and development of a lens-walled compound parabolic concentrator-a review | |
| EP2005570A2 (en) | Non-equatorial photovoltaic module | |
| Xuan et al. | Design, optimization and performance analysis of an asymmetric concentrator-PV type window for the building south wall application | |
| US20110197968A1 (en) | Solar collector panel | |
| KR102103279B1 (en) | Bifacial photovoltaic module device and method of using the same | |
| Xuan et al. | The design, construction and experimental characterization of a novel concentrating photovoltaic/daylighting window for green building roof | |
| Xuan et al. | Overall detail comparison for a building integrated concentrating photovoltaic/daylighting system | |
| CN102160195A (en) | Photovoltaic battery equipment | |
| Sellami | Design and characterisation of a novel translucent solar concentrator | |
| Cappelletti et al. | Integration and architectural issues of a photovoltaic/thermal linear solar concentrator | |
| Li et al. | Experimental study on the comprehensive performance of building curtain wall integrated compound parabolic concentrating photovoltaic | |
| EP2795683A2 (en) | Optical concentrator and associated photovoltaic devices | |
| Chemisana et al. | Building integrated concentrating solar systems | |
| CN102254962A (en) | Solar tile-shaped grooved cylindrical light-gathering device | |
| Xuan et al. | Overall outdoor experiments on daylighting performance of a self-regulating photovoltaic/daylighting system in different seasons | |
| CN115468137A (en) | Natural light homogenization lighting device based on combination of plano-concave lens and semi-convex lens | |
| Deng et al. | Model verification and photo-thermal conversion assessment of a novel facade embedded compound parabolic concentrator | |
| CN102315796A (en) | The flat photovoltaic transducer of modified model | |
| CN105358917B (en) | Solar energy collecting equipment and design method | |
| Alaa et al. | PV Grid-Connected Systems: Performance and Architectural Integration Aspects | |
| CN114562820A (en) | Building integrated shutter type solar photovoltaic photo-thermal collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120111 |