CN103580602A - Light-gathering plate - Google Patents
Light-gathering plate Download PDFInfo
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- CN103580602A CN103580602A CN201310321113.7A CN201310321113A CN103580602A CN 103580602 A CN103580602 A CN 103580602A CN 201310321113 A CN201310321113 A CN 201310321113A CN 103580602 A CN103580602 A CN 103580602A
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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
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- 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
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Abstract
The present invention provides a light-gathering plate which is arranged at a light receiving part of a solar cell. The light-gathering plate has: a reflecting layer having a reflecting surface facing to the light receiving part, and a plurality of light-transmitting spheroids passing through the reflecting layer, wherein a protruding distance of the spheroid protruded from the reflecting surface is less than a protruding distance of the spheroid protruded from a back of an opposite side of the reflecting surface.
Description
Technical field
The present invention relates to a kind of solar panel that is arranged on the light accepting part of solar cell.
Background technology
In recent years, as the low electricity generation system of carrying capacity of environment, solar power generation is noticeable.General solar power generating device is the slabbed construction that is seamlessly paved with the fixed of solar cell device.
All the time, solar power generation only utilizes the light that shines directly into its light accepting part.In recent years, continually develop the whole bag of tricks that sunlight is concentrated on effectively to solar cell device.The scheme that for example patent documentation 1 has proposed to cover the light accepting part integral body of solar cell and had the photoreceptor of prism portion.This photoreceptor is used prism to control from the seeing through and reflection of the light of light source incident, improves thus the light gathering efficiency of solar cell.Yet in this photoreceptor, the optical design of the prism that photoreceptor possesses is complicated, and while making (shaping) photoreceptor, be difficult to like that prism is critically shaped according to optical design.In the situation that prism is shaped like that not according to optical design, the light gathering efficiency of this photoreceptor can diminish.Therefore, in existing photoreceptor, the control that sees through and reflect of light is insufficient, and light gathering efficiency still has room for improvement.
Patent documentation 1: Japanese kokai publication hei 9-139518 communique
Summary of the invention
The object of the present invention is to provide a kind of can by control light see through and reflection further improves the solar panel of light gathering efficiency of the light accepting part of solar cell.
The present invention is a kind of solar panel, it is characterized in that, be arranged on the solar panel of the light accepting part of solar cell, described solar panel has: have towards the reflector of the reflecting surface of described light accepting part and the orbicule that connects a plurality of photopermeabilities in described reflector, described orbicule is less than from the outstanding outstanding distance in the back side of the opposition side of described reflecting surface from the outstanding outstanding distance of described reflecting surface.Such solar panel is more effectively controlled seeing through of light and reflection.Use the solar power generation module of solar panel of the present invention to demonstrate the excellent effect of improving light gathering efficiency and increasing electricity output.
Solar panel of the present invention preferably possesses the outstanding mode of described orbicule to be layered in to the binder course at the described back side in described reflector.If such solar panel, by described binder course more firmly in conjunction with and keep described orbicule, thereby can increase the intensity of solar panel, and can be for example use well without.
In addition, described reflector metal level preferably.If such reflector, solar panel of the present invention is owing to can controlling seeing through and reflection and can further improve light gathering efficiency and preferably of light.
In addition, the refractive index of described orbicule is preferably 1.30～2.30 scope.If the refractive index of such scope, solar panel of the present invention is owing to can controlling seeing through and reflection and can further improve light gathering efficiency and preferably of light.
Solar panel of the present invention can be controlled seeing through of light and reflection and can further improve light gathering efficiency.Therefore, use the solar power generation module of solar panel of the present invention to improve light gathering efficiency, increased energy output.
Accompanying drawing explanation
Fig. 1 means the figure of the situation of the structure on the cross section of the solar panel that embodiments of the present invention are related.
Fig. 2 is the schematic diagram of the relation of the related solar panel of embodiments of the present invention and the light that incides solar panel.
Fig. 3 is the schematic diagram of the reflector of the related solar panel of embodiments of the present invention and the position relationship of orbicule.
Fig. 4 is the enlarged drawing of plane graph of the 1st side of the related solar panel of embodiments of the present invention.
Fig. 5 is the enlarged drawing of plane graph of the 2nd side of the related solar panel of embodiments of the present invention.
Fig. 6 means the related solar panel of embodiments of the present invention and the figure with the situation of the structure on the cross section of solar power generation module of this solar panel.
Embodiment
Below, on one side with reference to accompanying drawing, explain solar panel of the present invention on one side preferred embodiment.
Fig. 1 means the figure of the situation of the structure on the cross section of the solar panel that embodiments of the present invention are related.
As shown in Figure 1, the main structure of the solar panel 11 of present embodiment is, possess and have the reflector 13 of reflecting surface 24 and the orbicule 14 that connects a plurality of photopermeabilities in reflector 13, orbicule 14 is less than from the outstanding outstanding distance in the back side 23 of the opposition side of reflecting surface 24 from reflecting surface 24 outstanding outstanding distances.A plurality of orbicules 14 are with respect to the back side 23 of the reflecting surface 24 in reflector 13, with individual layer and close to the state of the closeest filling, arrange.Have, Fig. 1 illustrates possesses the outstanding mode of orbicule 14 to be layered in to the solar panel 11 of the binder course 12 at the back side 23 again.
Fig. 2 schematically shows the related solar panel of embodiments of the present invention 11 and the figure that incides the light of solar panel 11.The light 32 that incides the 1st 21a of solar panel 11a from light source 31 sees through the orbicule 14a of photopermeability, as light 33 and from the 2nd 22a outgoing.Now, incide the light 32 of the 1st 21a in orbicule 4a refraction, by optically focused and from the 2nd 22a outgoing, therefore, most light transmission solar panel 11a.On the other hand, incide the light 34 of the 2nd the 22b side of solar panel 11b from light source 31, its major part is reflected as light 35 by the reflecting surface of the reflector 13b of solar panel 11b.Therefore, by solar panel 11a and solar panel 11b position relationship as shown like that with its reflector 13a, in the situation that 13b mode respect to one another configures, in a solar panel, for example 11a, from the light of light source 31 incidents, major part sees through, in addition, in another solar panel, for example 11b, from the light of light source 31 incidents, major part is reflected.Have again, in Fig. 2, illustrate refractive index and be approximately 1.9 orbicule 14.
In Fig. 1, reflector 13 be reflection from light source (not shown) incide solar panel 11 the 2nd 22 sides light layer.Reflector 13 have respectively reflecting surface 24, with and the back side 23 of opposition side.Reflector 13 is metal level or the resin bed that comprises Chinese white preferably.If reflector 13 is metal levels, reflecting surface 24 due to specular light thereby reflectivity high and do not have reflex time light loss and preferably.If above-mentioned metal is aluminium, silver, rhodium and stainless steel, because reflection of light rate is high and preferred, if aluminium, silver and rhodium, because the wavelength dependency of reflection of light rate is little and more preferably.By solar panel 11 of the present invention for solar power generation module in the situation that, if above-mentioned metal is aluminium or rhodium, because the absorption of the light in the ultraviolet region on reflector 13 is little, so generating efficiency is high, thereby preferably.
In the situation that reflector 13 is metal level, the not special restriction of above-mentioned metal level, can be arranged on example binder course 12 as hereinafter described by vapour deposition method, sputtering method and plating method.
In addition, stacked being arranged on example binder course 12 as hereinafter described can be carried out by coating process or print process by the resin that comprises metal powder in reflector 13.The not special restriction of above-mentioned metal powder, can illustration aluminium flake, nickel sheet, copper sheet, and in addition, above-mentioned resin has no particular limits, can poly-(methyl) propylene of illustration, polyester, polyvinyl chloride.If such structure, reflector 13 due to reflection of light rate is high and do not have reflex time light loss and preferably.
If reflector 13 is the resin beds that comprise Chinese white, above-mentioned Chinese white can suitably be used for example aluminium oxide, barium sulfate, brium carbonate, zinc oxide, titanium oxide, barium titanate, strontium titanates, calcium carbonate, manganese carbonate, forsterite and wollastonite.These Chinese whites can be respectively separately or combine and multiplely use suitably.In addition, above-mentioned Chinese white can be used various beades, pearl pigment, and in addition, above-mentioned bead can be used Hollow Glass Sphere.Have again, if the particle diameter of above-mentioned Chinese white is below 5 μ m, because the reflectivity on reflector 13 uprises preferably.The resin that is used in above-mentioned resin bed has no particular limits, if but gather (methyl) propylene, polyester, polyvinyl chloride, can preferably use.
In solar panel 11 of the present invention, the reflecting surface 24 that reflector 13 possesses needs to reflect the light of the Absorber Bandwidth that comprises solar power generation module.Therefore, in the situation that reflector 13 resin bed for comprising Chinese white, if above-mentioned Chinese white is aluminium oxide, barium sulfate, because the absorption of the light in the Absorber Bandwidth of the above-mentioned solar power generation module on reflector 13 diminishes preferably.
Have, the reflectivity of reflecting surface 24 can be take JISK7375 as standard again, and making background is to use spectrophotometer to try to achieve under the situation of black felt.The reflectivity of reflecting surface 24 is preferably more than 50%.Reflectivity in the present invention refers to the value after making the reflectivity of each wavelength average in the light wavelength region of 250nm～800nm, in addition, and is to take the relative value that the reflectivity of the barium sulfate that uses as standard white plate is 100%.
Fig. 3 is the reflector 13 of the related solar panel of embodiments of the present invention 11 and the schematic diagram of the position relationship of orbicule 14.Owing to schematically showing, thereby 14 of orbicules illustrate one.Solar panel 11 has the orbicule 14 that connects reflector 13.In Fig. 3, orbicule 14, at least its part is exposed to the reflecting surface 24 in reflector 13 and any the face in the back side 23.Below, explain the position relationship of reflector 13 and orbicule 14.At solar panel 11, orbicule 14 is less than from the outstanding outstanding distance in the back side 23 of the opposition side of reflecting surface 24 from reflecting surface 24 outstanding outstanding distances.; in Fig. 3; in reflector, the distance in the solstics of the orbicule 14 of the back side 23 sides in 13 23Yu reflector, the back side 13 is L; in addition; the reflecting surface 24 in reflector 13 with in the situation that the distance in the solstics of the orbicule 14 of reflecting surface 24 sides in reflector 13 is that R represents, orbicule 14 is L>R with the position relationship in reflector 13.The L of Fig. 3 be orbicule 14 from the back side 23 outstanding outstanding distances, R is that orbicule 14 is from the outstanding outstanding distance of reflecting surface 24.Due to such structure, solar panel 11 of the present invention can maintain the reflectivity on the reflecting surface 24 in high reflector 13, and orbicule 14 makes anaclasis, optically focused, can make light see through fully.Solar panel 11 of the present invention is controlled seeing through of light and reflection, shows the high so excellent feature of light gathering efficiency.Have, the outstanding distance of orbicule 14 can be tried to achieve by observe, measure the cross section of solar panel 11 with the microscope of light microscope, electron microscope etc. again.
The light of the 1st 21 that incides solar panel 11 can reflect effectively by orbicule 14, optically focused, thereby the size of orbicule 14 23 outstanding distance L of giving prominence to from the back side is more preferred more greatly.The big or small preferred scope of orbicule 14 23 outstanding distance L of giving prominence to from the back side, when the diameter that makes orbicule 14 is 100%, be more than 50%, be preferably more than 75%, more preferably more than 95%, in addition, orbicule 14 is preferably below 25% from the size of the outstanding outstanding distance R of reflecting surface 24, more preferably below 5%.Even if orbicule 14 is in close proximity to roughly 0 from the outstanding outstanding distance R of reflecting surface 24, if orbicule 14 parts are exposed to reflecting surface 24, solar panel 11 also can make light optically focused, see through.
The transmitance of light that comes from the 1st 21 sides of solar panel 11 can be take JISK7375 as standard and use spectrophotometer to try to achieve.The transmitance of solar panel 11 is more than 50%, is preferably more than 70%, more preferably more than 85%.Transmitance of the present invention is the value after making the transmitance of each wavelength average in the light wavelength region of 250nm～800nm, in addition, and is to take the relative value that the transmitance of air is 100%.In the present invention, photopermeability represents that transmitance is more than 50% situation.
The not special restriction of the diameter of orbicule 14, for example, be the scope of 0.1 μ m～1000 μ m, is preferably the scope of 10 μ m～500 μ m.If above-mentioned diameter is more than 0.1 μ m, during due to the making of solar panel 11, be not easy to cause the cohesion each other of a plurality of orbicules 14, therefore due to the arrangement with individual layer easily and preferably.In addition, if above-mentioned diameter is more than 0.1 μ m, due to can suppress the loss of scattering of light or the caused light of diffraction the light of the 1st 21 sides that raising comes from solar panel 11 transmitance and preferably.In addition, if above-mentioned diameter is below 1000 μ m, owing to can making solar panel 11 lightweights of the present invention, be not easy to cause that orbicule 14 passes through produced coming off preferably from solar panel 11 because of the time.Solar panel 11 of the present invention is conventionally arranged at without solar power generation module and uses.Even if solar panel 11 of the present invention does not for example come off through 1 year above orbicule 14 yet, can maintain high solar panel 11 light transmitance and preferably.Have, the diameter of orbicule 14 can be measured with microscope again.
The preferred scope of the refractive index of orbicule 14 is 1.30～2.30, more preferably 1.70～2.10.If refractive index is more than 1.30, owing to inciding on the 1st 21 at light, can be refracted at orbicule 14, optically focused and from the 2nd 22 outgoing, be solar panel 11 can be effectively by light optically focused and preferably, in addition, if below 2.30, due to the 2nd of the light transmission 22 o'clock inciding the 1st 21, the light of orbicule 14 refraction, optically focused can be in orbicule, outside orbicule surface or orbicule the 2nd 22 near focusing and from the 2nd 22 outgoing, solar panel 11 can suitably see through light and preferably.For example, as shown in Figure 2, in the situation that use the orbicule 14 that refractive index is approximately 1.9, at the light of the 1st 21 incidents of orbicule 14, refraction, optically focused, at orbicule 14 and the near interface of air, focus on, from the 2nd 22 outgoing.Have, the common refractometry method of the enough Abbe methods of refractive index energy of orbicule 14 etc. is measured again.
The not special restriction of orbicule 14, can suitably be used and take inorganic orbicule that bead, silica beads, transparent ceramic pearl be representative, the resin orbicule that allyl resin pearl, polystyrene resin pearl, propylene-styrene copolymer pearl, melamine resin pearl, polyurethane resin pearl be representative of take.
As the above-mentioned inorganic orbicule that can preferably be used in orbicule 14, can enumerate NICABEADS HB series (Nippon Carbide Industries Co., Ltd's system), NICABEADS MB series (Nippon Carbide Industries Co., Ltd's system), in addition, as above-mentioned resin orbicule, can enumerate TECHPOLYMER MBX-12(Sekisui Plastics Co., Ltd. system), TECHPOLYMER SBX-12(Sekisui Plastics Co., Ltd. system), ART PEARL GR-400 transparent (Gen Shang Industrial Co., Ltd system), ART PEARL SE-050T(Gen Shang Industrial Co., Ltd system), ART PEARL P-400T(Gen Shang Industrial Co., Ltd system), and OPT BEADS10500M(Nissan Chemical Ind Ltd system).
Fig. 4 is the enlarged drawing of plane graph of the 1st 21 sides of the related solar panel of embodiments of the present invention 11.Orbicule 14 the 1st 21 of solar panel 11 from reflector 13 back side 23(not shown) general plane that forms is outstanding.Fig. 4 illustrates in the situation that solar panel possesses binder course 12, the outstanding structure of binder course 12 that a part for orbicule 14 is stacked from the back side 23 with reflector 13.Owing to adopting such structure, therefore, solar panel 11 of the present invention can be controlled seeing through of light and reflection, and can further improve light gathering efficiency.
Orbicule 14 is preferably roughly size (size of same degree) uniformly.In the situation that the size of orbicule 14 roughly evenly and is ideally arranged, as shown in Figure 4, can, the 1st 21 of solar panel 11, with 6 orbicules, surround the mode of 1 orbicule and arrange.In the situation that orbicule 14 carries out the arrangement close to the closeest filling as shown in Figure 4, solar panel 11 owing to improving from the transmitance of the light of the 1st 21 side incidents preferably.Have again, in the present invention, a plurality of orbicules 14 are that roughly uniformly big or small (size of same degree) refers to, the diameter separately of a plurality of orbicules 14 is being measured to 30 by microscope at every 1 field of view, and try to achieve mean value and standard deviation interval, resulting coefficient of alteration (standard deviation/mean value) is below 0.5.When trying to achieve the diameter separately of orbicule 14, can suitably use light microscope, electron microscope.
Reflecting surface 24 in the reflector 13 of 11, the 2 22 sides of solar panel of present embodiment forms general plane.Orbicule 14 connects binder course 12 and reflector 13.In other words, be the outstanding structure of general plane that the part of orbicule 14 forms from reflecting surface 24 the 2nd 22.If the area of the general plane being formed at the reflecting surface 24 of take the 2nd 22 is as 100% time, the scope that orbicule 14 occupies the area of the 2nd 22 is 0.1%～40% scope, due to solar panel 11 of the present invention make light suitably optically focused, see through, and also can suitably reflect and preferably.If above-mentioned area is more than 0.1%, because the light of the 1st 21 incidents from solar panel 11 can fully see through preferably, in addition, if below 40%, can be in fully reflection and preferably of reflecting surface 24 owing to inciding the light of the 2nd 22 of solar panel 11.Have again, the scope of above-mentioned area can be by the 2nd 22 sides with microscopic examination solar panel 11, measure respectively the shared shared area of area and reflector 13 of orbicule 14 in field of view, calculate and take the ratio of the shared area of the orbicule 14 of the shared area in reflector 13 as 100% time and try to achieve.
Fig. 5 is the enlarged drawing of plane graph of the 2nd 22 sides of the related solar panel of embodiments of the present invention 11.The general plane that a part for orbicule 14 forms from the reflecting surface 24 in the reflector 13 of solar panel 11 is outstanding.
The present invention preferably has binder course 12.Binder course 12 is so that the outstanding mode of orbicule 14 is laminated in the layer at the back side 23 in reflector 13.In other words, binder course 12 be stacked with reflector 13 and in conjunction with, keep a plurality of orbicules 14 layer.If such structure, due to by binder course 12 more firmly in conjunction with, keep orbicule 14 to increase the intensity of solar panel 11 and preferred.Preferably excellent with the close property in reflector 13 and can keep securely the material with the combination of a plurality of orbicules 14 as the binder course that is used in solar panel 11 12 of preferred mode of the present invention.
For binder course 12, for example can use various resins, can preferably use thermoplastic resin.Can preferably be used in the thermoplastic resin of binder course 12, such as enumerating polyethylene, polypropylene, polyester, polyamide, poly-(methyl) propylene, polystyrene, Merlon, PLA, ethylene-vinyl alcohol copolymer and polyurethane etc.If binder course 12 is such thermoplastic resins, because the close property with reflector 13 is excellent and it is preferred with the combination of orbicule 14 to keep securely.
For binder course 12, also can preferably use hotmelt or light energy constrictive type adhesive etc.
The thermoplastic resin of binder course 12 can be preferably used in, particularly, the trade name EXCELLENT FXCX1001 processed of Sumitomo Chemical Co, ESPOLEX SB2400, the KURARAY of Co., Ltd. trade name EVAL E105B processed can be enumerated.In addition, the hotmelt that can preferably be used in binder course 12 can be enumerated the trade name TIFORCE HH-100 processed of Dainippon Ink Chemicals, and light energy hardening resin composition can be enumerated TIFORCE Exp.DC-200.
The structure except orbicule 14 in the 1st 21 of solar panel 11, be that the back side 23 forms general plane.In addition, solar panel 11 is as shown in Figure 1 such, and in the situation that solar panel 11 possesses binder course 12, the surface of binder course 12 also forms general plane.
In addition, in the situation that solar panel 11 of the present invention has binder course 12, orbicule 14, preferably carries out various surface treatments to its surface.For example, by carrying out surface treatment with silane coupler or fluoride additive, thereby orbicule 14 can be combined securely with binder course 12.In addition, can control orbicule 14 from the outstanding size of binder course 12.That is, in the situation that solar panel 11 of the present invention has binder course 12, the surface treatment of suitably changing orbicule 14, can easily control thus orbicule 14 from the outstanding outstanding distance of reflecting surface 24 and from reflector 13 the outstanding outstanding distance in the back side 23.
In addition, solar panel 11 of the present invention lose not significantly light see through and the scope of reflecting properties in, also can arrange except reflector 13, orbicule 14, binder course 12 layer, for example protective layer.Protective layer is for example to possess the protective layer of transparent adhesive layer on transparent resin plate that acrylic panel is representative or glass plate take.By 11 laminatings of such protective layer and solar panel of the present invention are used, thus due to increased solar panel intensity and preferably.
The thickness of solar panel 11 of the present invention is special restriction not, is preferably the scope of 0.1 μ m～1000 μ m.
The solar panel 11 of embodiments of the present invention for example can be made by method shown below.Manufacture method so long as do not exceed its purport, is not limited to following.
The supporter of the stacked operation paper of preparation polyethylene etc.Zone of heating is stacked in the thermoplastic resin of supporter, such as after poly-(methyl) propylene etc., make stratiform, then the orbicule of barium titanate series bead etc. is dispersed on resin bed.A plurality of orbicules scatter equably, are attached to above-mentioned resin bed in scattering operation, in addition, are not attached to the unnecessary orbicule of above-mentioned resin bed, before next operation, by using brush or gauge, or blow away with air and liquid etc., thereby fully removed.Then, orbicule is suitably selected described process conditions below in resin bed, with suitable size, is buried in above-mentioned resin bed.After having buried a plurality of orbicules, further adjust the atmosphere temperature of operation, a plurality of orbicules are bonded to resin bed.By the binder course 12 that can obtain above combining the orbicule 14 of photopermeability.Now, more than the atmosphere temperature of operation is preferably the softening temperature of binder course 12.In addition, the adjustment of the atmosphere temperature of operation can be by carrying out with hot blast, infrared ray, far infrared, microwave, thermostat and planar heater.In addition, if necessary, also can use ultraviolet ray etc.In addition, by pushing, thereby can suitably control the size that above-mentioned orbicule is buried in above-mentioned resin bed.This extruding can be undertaken by for example roll-in, dull and stereotyped compacting.Above-mentioned orbicule can suitably be controlled by heating means, temperature, heating time, pressing method, extruding force and extrusion time to the size of burying of above-mentioned resin bed.Particularly, take the diameter of above-mentioned orbicule as 100% time, the mode that the degree of its standout of take is approximately 40%～60% left and right is suitably controlled various conditions and is carried out.In addition, to become above-mentioned orbicule perforation resin bed and its part, be partly buried in the mode of the structure in supporter, suitably control the various conditions of burying and pushing and carry out.
After peeling off supporter, then, the binder course 12 keeping, combine orbicule 14, is keeping the opposition side of a side of orbicule 14 that reflector 13 is set, and makes the intermediate of solar panel 11.Have again, at the binder course 12 that has kept orbicule 14, the binder course that orbicule 14 connects as resin bed.Therefore, in the operation in reflector 13 is set, together with stacked reflector 13 on resin bed, also stacked reflector 13 on orbicule 14.
Then, remove above-mentioned intermediate, be layered in from the aluminium lamination on the outstanding orbicule 14 of binder course 12.
The operation of removing that is layered in the aluminium lamination of orbicule 14 has no particular limits, such as being undertaken by the known engraving method of plasma etching, reactive ion etching, chemical etching etc.Now, by the condition of suitable change atmosphere temperature, time etc., not shielding layer be stacked in resin bed aluminium lamination and only shielding layer be stacked in the aluminium lamination of orbicule 14.
By above method, can access the related solar panel of embodiments of the present invention 11.
The solar power generation module of the solar panel 11 that uses above-mentioned execution mode then, is described.
Fig. 6 means the figure of the situation of the structure on the cross section of solar power generation module 41. Solar panel 11c, 11d is arranged on the light accepting part 43 of solar cell 42.Now, solar panel 11c, 11d possesses the reflecting surface 24c having towards light accepting part 43, the reflector 13c of 24d, 13d.In other words, solar power generation module 41 has: have solar cell 42 and the solar panel 11c of light accepting part 43,11d.The reflecting surface 24c of solar panel 11c configures in relative mode with the reflecting surface 24d of solar panel 11d.As shown in Figure 6, the light accepting part 43 of solar cell 42 is arranged on 1 couple of solar panel 11c, between 11d.In Fig. 6, the light accepting part 43 that illustrates above-mentioned solar cell 42 is arranged to the example of approximate horizontal.In addition, in Fig. 6, not shown solar panel 11c, the orbicule 14 that 11d possesses respectively.
In Fig. 6, the solar panel 11c that solar power generation module 41 possesses, 11d with respect to light accepting part 43 in fact with the angle setting of 90 degree. Solar panel 11c, 11d is preferably roughly 90 degree with respect to the big or small scope separately of light accepting part 43 angulations 51,52.By making as mentioned above the reflecting surface 24 of solar panel 11 arrange in mode respect to one another, thereby solar panel of the present invention 11 shows excellent light gathering efficiency.For example, in the situation that light source is positioned at the position of the 31L of Fig. 6, except seeing through solar panel 11c, be irradiated to light accepting part 43 light, shine directly into the light of light accepting part 43, by coming from the reflection of light of solar panel 11d, make to be irradiated to the only helpful of light accepting part 43, to the light quantity that incides light accepting part 43 from light source 31L of solar power generation module 41, increase.In addition, even in the situation that the position of light source is 31R, due to a solar panel 11d except seeing through light, be irradiated to light accepting part 43 light, shine directly into the light of light accepting part 43, by another solar panel 11c, be irradiated to the only helpful of catoptrical light accepting part 43, therefore, the light quantity that incides light accepting part 43 to solar power generation module 14 increases.Like this, solar panel 11 of the present invention is owing to more effectively controlling seeing through and reflection of light, therefore, in the situation that using in solar power generation module 41, shows excellent light gathering efficiency.
In the situation that incide the light source of solar power generation module 41, be the sun, the position temporal evolution of light source.For example, in Fig. 6, light source 31 along with the time through position to 31L, 31M, 31R changes.Solar panel 11 of the present invention, even if light source is 31L, 31M, the position of any in 31R, because solar panel 11 carries out seeing through of light and reflection effectively, thereby light gathering efficiency is high, and the energy output of solar power generation module 41 increases.
In the situation that incide the light source of solar power generation module 41, be the sun, the position temporal evolution of light source.Therefore, existing solar power generation module 14 for example controls by follow light source with external power source the angle that light accepting part 43 tilts from horizontal plane, thereby also can make its energy output increase.
In addition, do not follow the solar power generation module 41 of light source, can consider set latitude yet, the light accepting part of its light accepting part 43 and the angle of installation surface are tilted and energy output is improved.For example, in the situation that solar power generation module 41 is arranged on to the Tokyo that north latitude 35 is spent, light accepting part 43 is towards due south, and the inclination approximately 23 of the consideration earth's axis is spent and spend (from being arranged to face approximately 32 degree of level) inclination from vertical guide approximately 58.
Have again, by the light accepting part of solar power generation module 41 43 can use external power source and follow the mode control position of light source or tilt from horizontal plane, the difficulty comparatively due to the restriction of the condition that arranges of solar power generation module 41 sometimes.Therefore, for example, as patent documentation 1(Japanese kokai publication hei 9-139518 communique) record, also can use various photoreceptors (beam condensing unit, solar panel) to improve light gathering efficiency, thereby realize the improvement of energy output.
In combination, have in the photoreceptor of solar panel of various prisms, by prism, control seeing through of light and reflection, thereby the optical design of prism is complicated, it is more difficult that the prism of solar panel is shaped, and therefore has the problem that can not get sufficient optically focused performance.In addition,, according to the setting position of solar power generation module (latitude), be necessary to change the design of prism shape.In addition, making the design of prism shape corresponding to the sun, in each season, make the situation of southern meridian altitude variation, is in fact impossible.Use is preferably more simply structure and no matter how the setting position (latitude) of solar power generation module all demonstrates high light gathering efficiency at the solar panel of solar power generation module.
In addition, in Fig. 6, represent that solar panel 11 only has the situation of 1 pair.For example, also can solar panel be set to surround the mode of solar cell 42, in this case, can further improve the optical efficiency that is subject to the light accepting part 43 of solar power generation module 41.In addition, if solar panel 11 is for example made to the cylindric solar cell 42 that is arranged at, right owing to forming in fact, therefore also can 1 solar panel be set in 42, solar cell.That is, if the reflecting surface of at least a portion of the reflecting plate of solar panel relatively and exist from the outstanding orbicule of this reflecting surface, as mentioned above, can improve light gathering efficiency.Moreover solar cell 42 is conventionally arranged a plurality of cell devices and is formed, but compares with the situation that solar panel is set at each this cell device, preferably in the situation of the arranged outside solar panel of arranged a plurality of cell devices.
As described above, according to the present invention, provide a kind of solar panel that sees through and reflect the light gathering efficiency of the light accepting part that also can further improve solar cell that can control light.
Claims (5)
1. a solar panel, is characterized in that,
Be arranged on the solar panel of the light accepting part of solar cell,
Described solar panel has:
Have towards the reflector of the reflecting surface of described light accepting part; And
Connect the orbicule of a plurality of photopermeabilities in described reflector,
Described orbicule is less than from the outstanding outstanding distance in the back side of the opposition side of described reflecting surface from the outstanding outstanding distance of described reflecting surface.
2. solar panel as claimed in claim 1, is characterized in that,
Possess the outstanding mode of described orbicule to be layered in to the binder course at the described back side in described reflector.
3. solar panel as claimed in claim 1, is characterized in that,
Described reflector is metal level.
4. solar panel as claimed in claim 1, is characterized in that,
The refractive index of described orbicule is 1.30～2.30 scope.
5. a solar power generation module, is characterized in that,
There is the solar panel described in any one and described solar cell in claim 1～4.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012167528 | 2012-07-27 | ||
| JP2012-167528 | 2012-07-27 | ||
| JP2013-126315 | 2013-06-17 | ||
| JP2013126315A JP2014041998A (en) | 2012-07-27 | 2013-06-17 | Light collecting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103580602A true CN103580602A (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310321113.7A Pending CN103580602A (en) | 2012-07-27 | 2013-07-26 | Light-gathering plate |
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| Country | Link |
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| CN (1) | CN103580602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108227167A (en) * | 2017-12-05 | 2018-06-29 | 杜志刚 | A kind of two-way solar panel of hollow glass bead |
-
2013
- 2013-07-26 CN CN201310321113.7A patent/CN103580602A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108227167A (en) * | 2017-12-05 | 2018-06-29 | 杜志刚 | A kind of two-way solar panel of hollow glass bead |
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Application publication date: 20140212 |