CN203690324U - Light collecting film for solar cell, and solar cell module - Google Patents
Light collecting film for solar cell, and solar cell module Download PDFInfo
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- CN203690324U CN203690324U CN201420043305.6U CN201420043305U CN203690324U CN 203690324 U CN203690324 U CN 203690324U CN 201420043305 U CN201420043305 U CN 201420043305U CN 203690324 U CN203690324 U CN 203690324U
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- 239000000758 substrate Substances 0.000 claims abstract description 63
- 239000012528 membrane Substances 0.000 claims description 79
- 238000005452 bending Methods 0.000 claims description 7
- 210000004027 cell Anatomy 0.000 description 22
- 238000010586 diagram Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000005341 toughened glass Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 210000003850 cellular structure Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
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Abstract
The utility model provides a light collecting film for a solar cell. The light collecting film comprises a transparent substrate and a micro-prism group, wherein the micro-prism group is disposed on the transparent substrate in a manner that the micro-prism group is corresponding to at least a part of an invalid zone of the solar cell module; the micro-prism group is configured to face the solar cell module when the light collecting film is applied to a light incidence surface of the solar cell module, and to enable the light which strikes to the micro-prism group to strike to a valid zone of the solar cell module through the full reflection by the micro-prism group. The solar cell module including the light collecting film is further provided. With the adoption of the solar cell having the light collecting film, more incidence light can be transmitted to the valid zone of the cell.
Description
Technical field
The utility model relates to photovoltaic technology, and the light that relates more specifically to make to be irradiated to solar cell surface incides the technology of cell photoelectric converting unit as far as possible
.
Background technology
Solar cell is reproducible green energy resource, has long working life, an advantage such as simple and compact for structure, specific power is high, reliable convenience.Solar cell is to solving day by day serious energy shortage and problem of environmental pollution important in inhibiting.
Because the energy density of sunlight own is lower, the power that in unit are, sun the subject of knowledge and the object of knowledge produces is correspondingly just lower.The generated output that improves solar energy is to expand the area of solar panel as direct and usual way, but solar panel is expensive, only depends on to expand the cost that solar panel will cause solar cell and increase a lot.
Fig. 1 is the schematic diagram of common in the market solar module, for clarity sake, has only illustrated the photoelectric conversion section of this solar module in figure.As is known to persons skilled in the art, the photoelectric conversion section of solar module is converted to by solar energy the solar battery sheet that electric energy generates electricity in other words and is formed by multiple, and the example of Fig. 1 comprises 12 solar battery sheets 10.As shown in the figure, between adjacent solar battery sheet 10, there is certain intervals 101, thereby these intervals cannot be electric energy by transform light energy owing to failing to cover upper solar battery sheet, become thus the dead space of solar module.In addition, as figure, be useful on one or several conductiving metal strips 103 that are rendered as spine of electric current collection in each solar battery sheet, conductiving metal strip 103 cannot be converted to electric energy by solar energy, therefore also becomes the dead space of solar module.
As mentioned above, existing solar module is because of the former of its structure thereby have dead space, if can effectively utilize these districts, just can, in the situation that not expanding solar panel, improve the conversion efficiency of solar panel.
Utility model content
The utility model provides a kind of light collection membrane for solar module, can effectively address the above problem.This is used for the light collection membrane of solar module, the microprism group that it comprises transparent substrates and is arranged at described transparent substrates, wherein, described microprism group is arranged at described transparent substrates in the mode corresponding with at least a portion in the dead space of described solar module, described microprism set constructor becomes in the time that described smooth collection membrane is applied to the light entrance face of described solar module, towards described solar module, and the light that makes to incide described microprism group incides effective district of described solar cell via the total reflection of microprism.
According to smooth collection membrane described in the utility model, as a preferred exemplary, in described microprism group, the bottom surface of each microprism is attached to described transparent substrates, and described each microprism extends along the length direction of described transparent substrates, the cross section vertical with described transparent substrates length direction of described each microprism is triangle or class triangle, wherein, described class triangle have three successively the connected limit of end points and wherein at least one limit there is certain bending.
According to smooth collection membrane described in the utility model, preferably, it is identical that the Bian Zhongyu in described cross section is positioned at two edge lengths that the limit of microprism bottom surface is connected.
According to smooth collection membrane described in the utility model, preferably, described cross section is less than 90 degree towards the angle of bottom surface.More preferably, described angle is between 45 degree and 85 degree.
According to smooth collection membrane described in the utility model, preferably, the refractive index of described transparent substrates is between 1.3 to 1.9, and in described microprism group, each microprism is transparent, and refractive index is between 1.3 to 1.9.
According to smooth collection membrane described in the utility model, preferably, in described microprism group, adjacent microprism bottom surface joins.
The utility model also provides a kind of solar module, it comprises converting unit, be arranged on the front panel in this converting unit, wherein, effective district that it is electric energy that described converting unit comprises transform light energy and the dead space that cannot be electric energy by transform light energy, described solar module also comprises the light collection membrane being arranged on described front panel, described smooth collection membrane comprises transparent substrates and is arranged at described transparent substrates and towards the microprism group of described front panel, wherein, described microprism group is corresponding at least a portion in described dead space, and be configured to make the light that incides it to incide effective district via the total reflection of microprism in microprism group.
According to solar module described in the utility model, preferably, in described microprism group, the bottom surface of each microprism is attached to described transparent substrates, and described each microprism extends along the length direction of described transparent substrates, the cross section vertical with described transparent substrates length direction of described each microprism is triangle or class triangle, wherein, described class triangle have three successively the connected limit of end points and wherein at least one limit there is certain bending.
According to solar module described in the utility model, it is identical that the Bian Zhongyu in described cross section is positioned at two edge lengths that the limit of microprism bottom surface is connected.
According to solar module described in the utility model, preferably, described cross section is less than 90 degree towards the angle of bottom surface.More preferably, described angle is between 45 degree and 85 degree.
According to solar module described in the utility model, preferably, the refractive index of described transparent substrates is between 1.3 to 1.9, and in described microprism group, each microprism is transparent and refractive index between 1.3 to 1.9.
According to solar module described in the utility model, preferably, in described microprism group, adjacent microprism bottom surface joins.
After will being applied on solar cell according to smooth collection membrane described in the utility model, the light that can should incide this dead space by the microprism group corresponding with solar cell dead space makes it incide effective district of solar cell by total reflection as much as possible, thereby the in the situation that of constant in the effective district of solar cell, improve the light amount of incident in effective district.Correspondingly, there is the solar battery group light amount of incident higher because light collection membrane has of light collection membrane as described in the utility model, thereby in the situation that not increasing solar battery sheet, improve the conversion ratio of luminous energy.
Brief description of the drawings
Fig. 1 is the schematic diagram of common in the market solar module.
Fig. 2 is according to the schematic diagram of the light collection membrane 2 of an example of the utility model.
Fig. 3 is an indicative icon according to the solar module 3 of the utility model example.
Fig. 4 illustrated according to the schematic diagram of the light collection membrane of an example of the utility model, can be applicable to according to the light collection membrane of this example the dead space 101 and/or 103 that the interval by between solar battery sheet of the solar module 1 shown in Fig. 1 causes.
Embodiment
Describe schematic example of the present utility model referring now to accompanying drawing, identical drawing reference numeral represents identical element.Each embodiment described below contributes to those skilled in the art thoroughly to understand the utility model, and is intended to example and unrestricted.In figure, the diagram of each element, parts, unit, device is not necessarily drawn in proportion, only illustrate schematicallys the relativeness between these elements, parts, assembly, device.
Term " dead space " is in all examples of the utility model, refer to the region that solar energy cannot be converted to electric energy in solar module, as interval, the bonding jumper on solar cell etc. between the solar battery sheet illustrating in conjunction with Fig. 1 in the utility model background technology part.At this, term " solar module " refers to solar panel, or as the solar module of the part parts of other solar battery product.Term " effectively district ", in all examples of the utility model, refers in solar module the region that can solar energy be converted to electric energy.
Fig. 2 is according to the side schematic view of the light collection membrane of an example of the utility model.Light collection membrane 2 comprises transparent substrates 20 and is arranged at the microprism group 22 of transparent substrates 20.Microprism group 22 is made up of multiple microprisms, comprises microprism 220,221,222 and 223 in this microprism group 22 that unrestriced mode is illustrated with example.Microprism group 22 is arranged at transparent substrates 20 in the mode corresponding with at least a portion in the dead space of solar cell.Light collection membrane 2 may be used on solar module 1 as shown in Figure 1, for example, while being applied to the plane of incidence (plane of incidence is for example front panel) of solar module 1, microprism group 22 at least a portion in dead space, and microprism group 22 light that is configured to make to incide it incides effective district of solar cell after via the total reflection of microprism as much as possible.
Because at least a portion in the dead space of the setting of microprism group 22 in transparent substrates 20 and solar components 1 is corresponding, therefore, after light collection membrane 2 is applied to the plane of incidence of solar components 1, microprism group 22 is just positioned on that a part of dead space corresponding with it, first the light that can incide thus this dead space originally will incide this microprism group 22, by the microprism total reflection in microprism group 22, thereby make it incide effective district of solar components 1, as much as possible the light that incides solar components 1 is transferred to thus to effective district of solar components, to reduce light loss, strengthen the light efficiency in effective district simultaneously.
Further set forth light collection membrane 2 in conjunction with the solar module 1 shown in Fig. 1.In solar module as shown in Figure 1, the dead space being made up of interval 101 is because the reason of solar cell chip architecture, between two adjacent solar battery sheets, be rendered as tetra-solar battery sheets of bar shaped dead space 101a successively adjacent place be rendered as in the 101b(figure of quadrangle dead space, only indicated part bar shaped dead space 101a and quadrangle dead space 101b in an interval 101).For clarity sake, hereinafter, indicate the dead space being produced by interval with label 101, that is the dead space of 101Wei You interval, dead space generation; Indicate the dead space being caused by bonding jumper with label 103, that is the dead space of dead space 103 for being caused by bonding jumper.
According to an example of the present utility model, light collection membrane 2 shown in Fig. 2, the size of the solar module 1 shown in size and Fig. 1 of its transparent substrates 20 adapts, and the setting position of microprism group 22 in transparent substrates 20 is corresponding with the dead space of solar module 1,, be all provided with microprism in the position corresponding with dead space 101 and 103 of transparent substrates 20.In this example, microprism group on light collection membrane 2 is corresponding to all dead spaces of solar module 1, thus, be applied at light collection membrane 2 after the plane of incidence of solar module 1, the light that incides dead space 101 and 103 originally will be totally reflected to effective district as much as possible by microprism.
According to another example of the present utility model, light collection membrane 2 shown in Fig. 2, the size of the solar module 1 shown in size and Fig. 1 of its transparent substrates 20 adapts, and the setting of microprism group 22 in transparent substrates 20 is only corresponding with the partial invalidity district of solar module 1,, only in the position corresponding with partial invalidity district of transparent substrates 20, microprism group 22 is set.For example only in the position corresponding with dead space 103, microprism is set.In this example, microprism group on light collection membrane 2 dead space 103 corresponding to solar module 1, thus, be applied to after the plane of incidence of solar module 1 at light collection membrane 2, the light that incides dead space 103 originally will be totally reflected to effective district as much as possible by microprism.
According to another example of the present utility model, the light collection membrane 2 shown in Fig. 2, the shape of its transparent substrates 20 and large I only with the solar module 1 shown in Fig. 1 in partial invalidity district adapt.Be exemplified below:
example 1
The shape of transparent substrates 20 and size only adapt with dead space 103, and after microprism group 22 being set in this transparent substrates 20, this light collection membrane 2 may be used on the plane of incidence of solar module 1, and is arranged on the position corresponding with dead space 103.Thus, the light that originally incides dead space 103 will be totally reflected to effective district as much as possible by microprism.Be appreciated that, in this case, light collection membrane 2 can be with dead space 103 in any strip light collection membrane adapting.
example 2
The shape of transparent substrates 20 with size only with the solar module 1 shown in Fig. 1 in dead space 101 adapt, after being provided with microprism group 22, this light collection membrane 2 can be set to the plane of incidence of battery component 1 corresponding with dead space 101.
example 3
As example, the shape of transparent substrates 20 and size can also be only with dead space 101 in quadrangle dead space 101b adapt.So, after being provided with microprism group 22, this light collection membrane 2 can be set to the plane of incidence of battery component 1 corresponding with dead space 101b.
example 4
The shape of transparent substrates 20 and size adapt with dead space 103 and dead space 101a respectively.So, after being provided with microprism group 22, this light collection membrane 2 can be set to the plane of incidence of battery component 1 corresponding with dead space 101a.
In all examples as above, in microprism group 22, the bottom surface of each microprism is attached to transparent substrates, and each microprism extends along the length direction of lens substrate.The cross section vertical with described transparent substrates length direction of microprism is triangle.Described transparent substrates length direction refers to the direction on limit the longest in the limit of transparent substrates, therefore can be regarded as the direction on the limit the longest along transparent substrates along transparent substrates length direction.Alternately, the cross section vertical with described transparent substrates length direction of microprism is class triangle, such triangle have three successively the connected limit of end points and wherein at least one limit there is certain bending.More specifically, transparent substrates can be fixed on by the mode of bonding in the bottom surface of each microprism, and in some cases, each microprism may be integrated with this transparent substrates.
As example, further set forth the structure of microprism in conjunction with Fig. 4.Fig. 4 has illustrated according to the schematic diagram of the light collection membrane of an example of the utility model, light collection membrane in this example can be applicable to the dead space 101 that the interval by between solar battery sheet of the solar module 1 shown in Fig. 1 causes, and also can be applicable to the dead space 103 being caused by the bonding jumper on solar battery sheet.Light collection membrane comprises transparent substrates 40 and is arranged at the microprism group 42 of transparent substrates 40, and shown microprism group 42 comprises microprism 420-426.According to this example, Y-direction is consistent with the length direction of dead space 101, and dead space 101 and 103 is strip, and the direction at its place, long limit is its length direction.Illustratively, the cross section vertical with length direction bottom surface each microprism can be triangle; Alternately, can also be class triangle, it has three connected limits of end points successively, and just wherein there is certain bending at least one limit, that is to say, and in this example, it is the face with certain bending that microprism has a face at least.Alternately, the cross section vertical with length direction bottom surface microprism, can be partly triangle, and part is class triangle.According to example of the present utility model, in microprism group, the angle towards bottom surface in this cross section of each microprism is less than 90 degree, in microprism group, the angle towards bottom surface in this cross section of each microprism is also known as the drift angle in cross section in this article, therefore also can say that the drift angle in this cross section is less than 90 degree.Preferably, in microprism group the drift angle in this cross section of each microprism 45 degree and 85 degree between.In addition it should be noted that, the drift angle in this cross section of each microprism can equate also can differ from one another.
According to example of the present utility model, the refractive index of transparent substrates 20 is between 1.3 to 1.9, preferably between 1.3 to 1.7; In microprism group, each microprism is transparent, and its refractive index is between 1.3 to 1.9, preferably between 1.3 to 1.7.
Transparent substrates can be made up of one or more in following material: PET, PMMA, PC, PA, PVC, PP, PCTFE, PU, ETEE, polyacrylate, epoxy polymer.Each microprism in microprism group can be made up of one or more in following material: PET, PMMA, PC, PA, PVC, PP, PCTFE, PU, ETEE, polyacrylate, epoxy polymer.
According to another example of the present utility model, also provide a kind of solar module.This solar module comprises converting unit and is arranged on the front panel in this converting unit.Converting unit is generally made up of multiple solar battery sheets, as described above, there is interval and on each solar battery sheet, also have some conductiving metal strips in solar cell sector-meeting, therefore, converting unit comprises effective district that can be electric energy by transform light energy and the dead space that cannot be electric energy by transform light energy.As described above, dead space comprise dead space that dead space that interval causes and conductiving metal strip cause both.At this, on being arranged on solar battery sheet and being arranged on solar panel, front panel general reference first contacts all laminar structures between the plane of incidence (this plane of incidence is generally toughened glass) of incident light.This solar components also comprises the light collection membrane being arranged on front panel.This collection membrane comprises transparent substrates and is arranged at transparent substrates the microprism group towards front panel, and, this microprism group is by arrange corresponding to the mode of at least a portion in dead space, and after being constructed such that the total reflection of the light microprism in via microprism group that incides it and incide effective district.
In the example of this solar module, light collection membrane can be the arbitrary class light collection membrane in each example described in conjunction with Figure 2 above, just no longer describes in detail at this.
Fig. 3 is an indicative icon according to the solar module 3 of the utility model example.As shown in the figure, this solar module comprises converting unit 30, front panel 32 and light collection membrane 34.Converting unit 30 is made up of multiple solar battery sheets, shows solar battery sheet 301 and 302 at this.Front panel 32 for example comprises toughened glass 322 and toughened glass 322 is bonded to the EVA layer 320 of solar battery cell.The dead space of solar module 3 comprises the dead space 501 being caused by the interval between solar battery sheet 301 and 302, and the dead space 503 being caused by the bonding jumper on solar battery sheet 302.In this example, light collection membrane 34 comprises the light collection membrane 341 adapting with dead space 501 and the light collection membrane 343 adapting with dead space 503.The size of the transparent substrates of light collection membrane 341 and shape and dead space 501 adapt, and microprism group is set thereon, to incident ray 60 is incorporated into effective district 301 and 302 as much as possible; And the size of the transparent substrates of light collection membrane 343 and shape and dead space 503 adapt, microprism group is set, to incident ray 62 is incorporated into effective district 302 as much as possible thereon.
In all examples of the utility model, in microprism group, the shape size of each microprism can be consistent, also can be different.Taking the microprism group shown in Fig. 2 as example, microprism 220 its cross sections perpendicular to bottom surface are wherein for example isosceles triangle, and microprism 221 is for example class triangle perpendicular to the cross section of bottom surface.Illustratively, according to the each microprism in microprism group of the present utility model, the bottom surface of adjacent microprism can join, that is each microprism is connected in turn.
In all examples of the utility model, in light collection membrane, the thickness of transparent substrates is no more than 0.5 millimeter, and in microprism group, the height of microprism is also no more than 0.5 millimeter, and the thickness of whole smooth collection membrane is less than or equal to 1 millimeter, at this, the height of microprism refers to the height perpendicular to bottom surface of microprism.In addition, in microprism group, each microprism microprism adjacent thereto can be connected on base.In each example as described above, in microprism group, each microprism is all that base is connected.But as optional example, can be independent of one another between each microprism in microprism group, also can part independent of one another and part base is connected, in both cases, the light that incides two regions between microprism independent of each other likely can not be transferred to effective district.
In addition, it should be noted that, " light collection membrane is applied to solar cell " described herein or " light collection membrane is applied to the light entrance face of solar cell " or " light collection membrane is applied to the front panel of solar cell " etc., application wherein refer to by light collection membrane with paste or alternate manner be fixed to solar cell as the relevant position such as the plane of incidence or front panel.
The light collection membrane of making according to the utility model is applied to power and is approximately the solar module of 186.6W, adopt the DLSK-SOL5 of Beijing Micron Technology Co., Ltd of moral laser section to test as solar cell test machine, test the photovoltaic cell component sample that three power are approximately 186.6W, be listed in as follows the test result in table 1,2 and 3.It in table 1, is the test result of sample 1, the listed test result of the 1st to 5 row is the test result with the battery component of the light collection membrane of making according to the utility model, and the listed test result of the 6th to 10 row is the test result that does not adopt the battery component of light collection membrane.Equally, table 2 is test results of sample 2, and what the 1st to 5 row were listed is the test result with the battery component of the light collection membrane of making according to the utility model, and what the 6th to 10 row were listed is the test result that does not adopt the battery component of light collection membrane; Table 3 is test results of sample 3, and what the 1st to 5 row were listed is the test result with the battery component of the light collection membrane of making according to the utility model, and what the 6th to 10 row were listed is the test result that does not adopt the battery component of light collection membrane.It should be noted that, the light collection membrane in test is only applied in the following dead space of sample 1,2,3: the bar shaped spacer region that solar battery sheet is two, spacer region 101a as shown in Figure 2; And the dead space 103 that forms of bonding jumper on solar battery sheet.
Table 1
As shown in table 1, when No. 1 sample does not adopt according to collection membrane shown in the utility model, its average power is 185.3W, has adopted according to after the collection membrane shown in the utility model, and average power is 189.4W, has increased by 2.21%.
Table 2
As shown in table 2, when No. 2 samples do not adopt according to collection membrane shown in the utility model, its average power is 184.7W, has adopted according to after the collection membrane shown in the utility model, and average power is 188.7W, has increased by 2.17%.
Table 3
As shown in table 3, when No. 3 samples do not adopt according to collection membrane shown in the utility model, its average power is 185.4W, has adopted according to after the collection membrane shown in the utility model, and average power is 189.0W, has increased by 1.94%.
Although in description above, disclose specific embodiment of the utility model by reference to the accompanying drawings, it will be appreciated by those skilled in the art that, can, in the situation that not departing from the utility model spirit, disclosed specific embodiment be out of shape or be revised.Embodiment of the present utility model is only not limited to the utility model for signal.
Claims (14)
1. the light collection membrane for solar module, it is characterized in that, described smooth collection membrane comprises transparent substrates and is arranged at the microprism group of described transparent substrates, wherein, described microprism group is arranged at described transparent substrates in the mode corresponding with at least a portion in the dead space of described solar module, described microprism set constructor becomes in the time that described smooth collection membrane is applied to the light entrance face of described solar module, towards described solar module, and the light that makes to incide described microprism group incides effective district of described solar module via the total reflection of microprism, described effective district is the region that described solar module is electric energy by transform light energy, described dead space is the region that described solar module cannot be electric energy by transform light energy.
2. smooth collection membrane as claimed in claim 1, it is characterized in that, in described microprism group, the bottom surface of each microprism is attached to described transparent substrates, and described each microprism extends along the length direction of described transparent substrates, the cross section vertical with described transparent substrates length direction of described each microprism is triangle or class triangle, wherein, described class triangle have three successively the connected limit of end points and wherein at least one limit there is certain bending.
3. smooth collection membrane as claimed in claim 2, is characterized in that, it is identical that the Bian Zhongyu in described cross section is positioned at two edge lengths that the limit of microprism bottom surface is connected.
4. smooth collection membrane as claimed in claim 2, is characterized in that, described cross section is less than 90 degree towards the angle of bottom surface.
5. smooth collection membrane as claimed in claim 4, is characterized in that, described angle is between 45 degree and 85 degree.
6. the light collection membrane as described in any one in claim 1 to 5, is characterized in that, the refractive index of described transparent substrates is between 1.3 to 1.9, and in described microprism group, each microprism is transparent and has the refractive index between 1.3 to 1.9.
7. the light collection membrane as described in any one in claim 1 to 5, is characterized in that, in described microprism group, adjacent microprism bottom surface joins.
8. a solar module, it comprises converting unit, be arranged on the front panel in this converting unit, wherein, effective district that it is electric energy that described converting unit comprises transform light energy and the dead space that cannot be electric energy by transform light energy, it is characterized in that, described solar module also comprises the light collection membrane being arranged on described front panel, described smooth collection membrane comprises transparent substrates and is arranged at described transparent substrates and towards the microprism group of described front panel, wherein, described microprism group is corresponding at least a portion in described dead space, and be configured to make the light that incides it to incide effective district via the total reflection of microprism in microprism group.
9. solar module as claimed in claim 8, it is characterized in that, in described microprism group, the bottom surface of each microprism is attached to described transparent substrates, and described each microprism extends along the length direction of described transparent substrates, the cross section vertical with described transparent substrates length direction of described each microprism is triangle or class triangle, wherein, described class triangle have three successively the connected limit of end points and wherein at least one limit there is certain bending.
10. solar module as claimed in claim 9, is characterized in that, it is identical that the Bian Zhongyu in described cross section is positioned at two edge lengths that the limit of microprism bottom surface is connected.
11. solar modules as claimed in claim 9, is characterized in that, described cross section is less than 90 degree towards the angle of bottom surface.
12. solar modules as claimed in claim 11, is characterized in that, described angle is between 45 degree and 85 degree.
13. solar modules as described in any one in claim 8 to 12, it is characterized in that, the refractive index of described transparent substrates is between 1.3 to 1.9, and in described microprism group, each microprism is transparent and has the refractive index between 1.3 to 1.9.
14. solar modules as described in any one in claim 8 to 12, is characterized in that, in described microprism group, adjacent microprism bottom surface joins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420043305.6U CN203690324U (en) | 2014-01-23 | 2014-01-23 | Light collecting film for solar cell, and solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420043305.6U CN203690324U (en) | 2014-01-23 | 2014-01-23 | Light collecting film for solar cell, and solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690324U true CN203690324U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420043305.6U Expired - Lifetime CN203690324U (en) | 2014-01-23 | 2014-01-23 | Light collecting film for solar cell, and solar cell module |
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| Country | Link |
|---|---|
| CN (1) | CN203690324U (en) |
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2014
- 2014-01-23 CN CN201420043305.6U patent/CN203690324U/en not_active Expired - Lifetime
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