CN105470328B - Independent light trap type photovoltaic glass - Google Patents
Independent light trap type photovoltaic glass Download PDFInfo
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- CN105470328B CN105470328B CN201410450495.8A CN201410450495A CN105470328B CN 105470328 B CN105470328 B CN 105470328B CN 201410450495 A CN201410450495 A CN 201410450495A CN 105470328 B CN105470328 B CN 105470328B
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- 239000011521 glass Substances 0.000 title claims abstract description 80
- 230000005532 trapping Effects 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000003491 array Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 241000256844 Apis mellifera Species 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000005693 optoelectronics Effects 0.000 abstract description 5
- 238000002834 transmittance Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000002310 reflectometry Methods 0.000 description 5
- 230000001413 cellular effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001579 optical reflectometry Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0236—Special surface textures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Abstract
The present invention relates to a kind of photovoltaic glass for solar cell, the surface of the photovoltaic glass has independent cirque structure, that is independent light structure of trap, the external diameter of its middle ring is in the range of 0.1~5mm, the angle of inner and outer ring is less than or equal to 90 °, and the multiple reflections and refraction for thus making light are completed in the independent cirque structure.Using above-mentioned photovoltaic glass, 99.8% capture of the incident light of glass interface can will be first entered into, i.e.,：Make 96% in caused reflected light first it is captured after be used again.And existing photovoltaic glass product can only about capture the 30%~40% of the reflected light for first entering into glass interface, therefore use the photovoltaic glass of the present invention, more light can be made to participate in opto-electronic conversion through photovoltaic glass, the Generation Rate of solar cell is greatly improved.
Description
Technical field
The present invention relates to the photovoltaic glass applied to solar-energy photo-voltaic cell, more particularly to a kind of height of independent light trap type
Light transmittance photovoltaic glass.
Background technology
At present, the key problem in short supply for having become the development of puzzlement countries in the world of the energy, solar energy is as a kind of both rich
The green energy resource of sustainable use that is rich and will not causing environmental pollution, considers from long-range strategy, develops and is using solar energy
An important ring for various countries' sustainable development.At present, the utilization of solar energy mainly has two ways in global range：One kind is to pass through
Solar radiant energy is converted into heat energy, such as solar water heater etc. by heat collector；Another kind is by the sun by solar cell
Electric energy, i.e. photovoltaic generation, such as solar cell etc. can be converted into.Regardless of whether be the device that luminous energy is converted into heat energy, or will
Luminous energy is converted into the device of electric energy, and solar energy package assembling is all one of its essential component, and solar energy package assembling
Must possess：Light transmission rate is high（Transmitance is more than or equal to 91%, containing Fe2O3Less than or equal to 150ppm）, it is waterproof, be chronically exposed to
Under natural environment performance without it is serious degenerate, have to external force and thermal stress higher mechanical strength, have certain decay resistance,
The coefficient of expansion is small etc..At present, only solar energy photovoltaic glass and the transparent plastic sheet of above-mentioned condition, but many institute's weeks can be met
Know, due to transparent plastic sheet is easy to aging, softening point is low, thermal coefficient of expansion greatly without being easily used as cover plate, and solar energy photovoltaic
Glass is turned into solar energy package assembling material extensively due to the advantages that with stable chemical performance, aging hardly occurs
It is preferred that.
Solar cell is also known as " solar chip " or " photocell ", is a kind of photoelectricity using the sunshine direct generation of electricity
Wafer.As long as it is arrived by illumination, moment output voltage and can produce electric current in the case where there is loop.In physics
It is upper to be referred to as photovoltaic（It is abbreviated as PV）, abbreviation photovoltaic.And solar cell includes photovoltaic glass, solar battery sheet etc.,
Wherein photovoltaic glass is used to protect power generation main body（Such as solar battery sheet）And it is necessary to meet light transmittance height（As described above,
Light transmittance is generally more than 91%）And ultrawhite tempering processing；And solar battery sheet is mainly used in generating electricity.Solar energy among these
The conversion efficiency of cell piece 2 is to influence the key index of solar cell properties.The influence solar cell conversion being currently known
The factor of efficiency is a lot, for example the factor such as solar energy light intensity, battery material, manufacturing technology level, and above-mentioned various factors causes mesh
It is preceding in the conversion efficiency research of solar battery sheet, it is intended to the conversion efficiency for improving 1% has been very tired for industrial circle
It is difficult.
And it can be seen from the structure of solar cell, the light transmittance of photovoltaic glass directly affects the conversion effect of solar cell
Rate, therefore if the light transmittance of photovoltaic glass can be improved, the photoelectric transformation efficiency of solar cell will be improved.
In order to realize the antiradar reflectivity of light, low absorptivity and high light transmission rate, patent document 1 discloses a kind of control table
Face pattern changes the optical element of mirror-reflection, and use can weaken electromagnetic wave and mirror-reflection occurs along object macro surface and can drop
Its low total reflectivity and the optics for playing optical trap effect, the optics have reflection and absorbability, surface
The taper embossment being misplaced by several cones just to differ；The height of surface relief 0.1 micron to 2 millimeters it
Between, the basic repeat unit of the surface relief is shaped as pyramid or triangular pyramidal or polygonal vertebra shape, each repeat unit
Floor space is 0.04 square micron to 8 square millimeters.
Non-patent literature 2 discloses application of the light trapping in crystal silicon solar batteries, and it discloses reflected to reduce
And light trapping is used, wherein common light trapping includes pyramid matte, the drift angle of each cube of its square pyramid matte is 70 °
23 ', reflectivity can be down to the 1/3 of smooth surface by matte, further calculated by the optical property to matte, also had
11% secondary reflection light may carry out third time reflection and refraction, and the reflectivity that thus can calculate matte is 9.04%.
Patent document 3 discloses that a kind of glass marble-aperture array light trap technology, is produced on the thin plate of certain material
Array of orifices, thin plate two sides plate needed for hull cell successively including aperture side wall after metallized reflective layer in upper surface
Various materials, glass marble is placed with the top of each aperture of thin plate upper surface, these close interdependent glass marble composition surfaces
Glass ball array, solar ray collecting can be passed through thin plate aperture, quilt by it into the small strong beam array of yardstick, these light beams
It is trapped between thin plate and ultra-thin photovoltaic battery panel below thin plate, is repeatedly absorbed and be converted into luminous energy, forms light and fall into
Trap.
Above-mentioned patent document 1 and non-patent literature 2 employ taper/pyramid projection and are used as light trapping structure, patent
Document 3 employs aperture array light trap structure, but according to the record of above-mentioned patent document and non-patent literature, its it is minimum can be by two
Reflectivity after secondary reflection is reduced to 1%.That is, using above-mentioned technology, the transmitance of light does not occur beyong contemplation big
The raising of amplitude.
Patent document 1： CN1157929A
Non-patent literature 2：Application of the light trapping in crystal silicon solar batteries（Laser and optoelectronics are in progress,
Volume 2004,41, the 5th phase, 56-58, page 44）
Patent document 3： CN102623578A.
The content of the invention
For the present invention in view of technical problem present in above-mentioned prior art, its object is to provide one kind to be applied to solar energy
The independent light trap type photovoltaic glass of battery, it uses special independent light structure of trap, reduces light reflectivity, thus significantly
The transmitance of light is improved, so as to further increase the photoelectric transformation efficiency of solar battery sheet.
According to the technical scheme of the present invention, there is provided a kind of photovoltaic glass for solar cell, the photovoltaic glass
Surface there is independent cirque structure, i.e. independent light structure of trap, the external diameter of its middle ring is inside and outside in the range of 0.1~5mm
The angle of ring is less than or equal to 90 °, and the multiple reflections and refraction for thus making light are completed in the independent cirque structure.
Preferably, in photovoltaic glass involved in the present invention, it is provided with the blank position of independent light trapping smaller
Light trapping is to improve light transmission rate.
Preferably, in photovoltaic glass involved in the present invention, smaller light trapping is spill point cone shape.
Preferably, in photovoltaic glass involved in the present invention, independent light trapping is in cellular close-packed arrays.
Preferably, in photovoltaic glass involved in the present invention, the independent square arrangement of light trapping.
According to another technical scheme of the present invention, there is provided a kind of method for being used to manufacture the photovoltaic glass of the present invention, its
Comprise the following steps：
The female wheel of " independent light structure of trap " combination is processed using special processing unit (plant)；
Rolling roller is gone using the female wheel, the roll is installed on calender；
The photovoltaic glass is suppressed by calender.
The independent light trap type photovoltaic glass of the present invention will can enter first as a result of distinctive ring-shaped light structure of trap
Enter 99.8% capture to the incident light of glass interface, i.e.,：Make 96% in caused reflected light first it is captured after be subject to profit again
With.And existing photovoltaic glass product can only about capture the 30%~40% of the reflected light for first entering into glass interface,
Therefore the photovoltaic glass of the present invention is used, more light can be made to participate in opto-electronic conversion through photovoltaic glass, so improve the sun
The Generation Rate of energy battery.
According to statistics, about 30,000,000 kilowatts of solar cell has been produced by China in 2011, the yield accounts for entirely
The half of Gross World Product, and correspondingly need 300,000,000 square metres of photovoltaic glass.If associated solar battery component manufacturer
The photovoltaic glass of the present invention is bought with the purchasing price higher than existing market valency 2%~3%（Photovoltaic glass only accounts for totle drilling cost
8%）, then understood by adjusting, related photovoltaic glass manufacturer can net income increase 2%~3%, and associated solar battery component
Manufacturer then can net income increase 1.8%~2.7%, therefore the present invention commercial value, market development prospect it is considerable.
Brief description of the drawings
Fig. 1 is the structure chart of solar cell.
Fig. 2 is that the light of the photovoltaic glass of the present invention passes through schematic diagram.
Fig. 3 is the figure for the independent light structure of trap for representing the photovoltaic glass of the present invention.
Fig. 4 is the figure of the planar alignment for the independent light structure of trap for representing the photovoltaic glass of the present invention.
Fig. 5 is the figure for the surface texture for representing the photovoltaic glass of the present invention.
Fig. 6 is the stereogram of small trap produced of blank position in each light trapping.
Description of reference numerals
1 photovoltaic glass
2 solar battery sheets
3 substrates
4 binding agents
5 fluid sealants
6 frameworks
10 independent light trappings
12 small traps.
Embodiment
Some terms are used to refer to particular elements from beginning to end in present specification.As those skilled in the art will recognize
As knowing, generally identical part can be indicated with different titles, thus present specification is not intended to distinguish those
Simply in nominally different rather than functionally different parts.In present specification, art is used in the form of open
Language " including（comprise）", " include（include）" and " have（have）", and therefore should be construed as meaning " bag
Include but be not limited to ... ".In addition, the term " about " that may be used herein, " substantial " or " approx " being related to industry
The tolerance to corresponding term received.
In the following description, for illustrative purposes, many specific details are illustrated to provide the thorough reason to the present invention
Solution.However, it will be apparent to one skilled in the art that can be in the case of these no specific details
Implement device, the method and apparatus of the present invention." embodiment ", " example " or referring to for similar language are meant in this manual
Special characteristic, structure or characteristic with reference to described by the embodiment or example are included at least that one embodiment or example
In, but can not necessarily be included in other embodiments or example.
Hereinafter, with reference to preferred embodiment and Figure of description, the invention will be further described.
Fig. 1 is the structure chart of solar cell, and it includes:Photovoltaic glass 1, work for the packaging protection of solar cell
For solar energy to be converted directly into the solar battery sheet 2 of the semiconductor devices of electric energy, substrate 3, binding agent 4, the and of fluid sealant 5
Framework 6 etc..As noted above, the structure of 1 solar cell understands that photovoltaic glass 1 is the sun with reference to the accompanying drawings
One of significant components of energy battery, are not only responsible for the effect such as protection, printing opacity and battery electrode, and also there is increase light to utilize
Rate, improves the key property of battery efficiency, and the light transmittance of photovoltaic glass 1 directly influences the opto-electronic conversion of solar cell in itself
Efficiency, thus currently invention addresses improve photovoltaic glass 1 light transmittance to be studied.
At present, the photoelectric transformation efficiency of battery is improved it has already been proposed many effective ways, as quantum-dot structure,
Wavelength transformational structure and light trapping structure etc..The present invention provides a kind of novel light trapping structure for existing photovoltaic glass（Fall into
Photo structure be also referred to as " light trapping ", refer to after light is irradiated into this structure, all or most light all without
It is reflected back.Different surfaces can produce different sunken light effects, and then produce Different Effects to photovoltaic cell）, i.e. ring-type
Mirror is designed, and the multiple reflections and refraction for alloing light are completed in an independent cirque structure, in this application that this is only
Vertical cirque structure is referred to as " independent light trapping ".In addition, light trapping structure is also to judge to fall into light to the scattering power of incident light
The good and bad important indicator of structure, good light trapping structure are not only able to scatter many light, and scatter light should also be distributed in compared with
In big angular range, it more light increases is absorbed light path, also the incident light of different angle can be made all to enter
Enter into the absorption region of solar cell, favourable battery makes full use of oblique fire sunlight in actual use, improves and generates electricity
Ability.Existing photovoltaic glass is raised in the massif shape being randomly distributed in its surface rolling, but the structure can only capture less
The reflected light of amount.In order to fully capture reflected light, light transmission rate is improved, the present invention uses multiple above-mentioned independent light trapping units simultaneously
It is set to be covered with the surface of photovoltaic glass 1, so as to which light can be included reflected light almost all after multiple reflections and refraction
Into solar battery sheet 2, light transmission rate is thus greatly increased, and thus improves the opto-electronic conversion of solar cell in itself
Efficiency, achieve prominent practical application effect.
Fig. 5 is the figure for the surface texture for representing the photovoltaic glass of the present invention, as shown in the accompanying drawing 5, the bottom surface of photovoltaic glass 1
Existing reticulate patterned surface is maintained, its top surface（That is upper surface）With the flower pattern suppressed through special emebosser, the flower pattern is independent
Cirque structure, i.e., independent light trapping 10, each independent light trapping 10 is in cellular close-packed arrays, and the independent light trapping 10
It is distributed on top surface uniformly continuous.
Fig. 3 shows the angle of the planar structure of the independent light trapping, the wherein inner and outer ring of the cirque structure<90 °,
The external diameter of ring is determined that in the present invention, the external diameter of the ring is defined as 0.1~5mm by the thickness of photovoltaic glass.
Fig. 4 shows the planar alignment of the independent light trapping of the photovoltaic glass of the present invention.As shown in Figure 4, each independent light
Trap 10 is in cellular close-packed arrays, thus, it is possible to maximally utilise surface area.Meanwhile in order to improve light transmission rate, can
Some small traps 12 are produced in the ring of each independent light trapping 10 and the junction of ring.
Fig. 6 is the stereogram of small trap produced of blank position in each independent light trapping.As shown in Figure 6, it is small to fall into
Trap 12 is that spill point is coniform, improves light transmission rate with this.
In the present embodiment, each independent light trapping 10 is in cellular close-packed arrays, but the arrangement of each independent light trapping 10
Honeycomb fashion close-packed arrays are not limited to, can also be used such as square arrangement, though the spread pattern such as square arrangement
Right simple processing, but less efficient, it is not the first choice of the present invention.
In the present invention, using the particularly ring-shaped light trapping structure come make photovoltaic glass and solar cell its
Its transparent material.Because the photovoltaic glass of the present invention has above-mentioned special independent light structure of trap, the overwhelming majority can be made（Greatly
About 99.8%）The light entered in glass produces the even more reflection of secondary reflection, triple reflection, four secondary reflections, therefore
The light for being reflected back toward atmosphere greatly reduces, so as to enhance the transmitance of light.
Principle is passed through the following detailed description of the light of the photovoltaic glass of the present invention.According to physics principle, when light is situated between from one kind
When matter enters another medium, as long as the density of medium is different, it will just occur to reflect and reflect.When incident light is in photovoltaic glass
Light trapping structure inclined-plane on produce primary event and unirefringence after, a part of reflected light incides adjacent inclined-plane again, then
It is secondary to produce secondary incidence, so that incident light increase.Meanwhile during multiple incidence, generate entering for different angle
Light is penetrated, serves the effect of light scattering.
Fig. 2 is that the light of the photovoltaic glass of the present invention passes through schematic diagram, as shown in Figure 2, when light S incides the present invention's
During the A-B inclined-planes of independent light trapping 10, it will occur to reflect and reflect, and produce reflection light S1 and refracted light S2, and when reflection
When light S1 proceeds to the adjacent bevel surfaces, i.e. B-C inclined-planes of the independent light trapping 10, reflection light S1 reflects and rolled over again
Penetrate, produce reflection light S3 and refracted light S4 (not shown)s, reflection light S3 reflect again at another interface
And refraction, generation reflection light S5 and refracted light S6...... the like, because the independent dense distribution of light trapping 10 exists
The surface of photovoltaic glass 1 and its unique structure, finally, most light are repeatedly reflected, and are reflected back toward atmosphere
Light greatly reduce.
In the present invention, as shown in Figure 2, when first reflection and refraction occurs, incident ray about 96% only
Reflected on the inclined-plane of vertical light trapping structure, and about 4% light reflects on the inclined-plane, should be reflected
About 4% light continue that reflection and refraction occurs in the adjacent bevel surfaces of above-mentioned independent light structure of trap, by multiple reflections and
After refraction, finally, about 3.64% in about 4% reflection light（I.e.：4% × 96%=3.64%）It is captured, and it is only big
About 0.16% light is returned to atmosphere.
In addition, in order to process the flower-shape of independent light structure of trap, present inventor develops special accordingly set
Standby and dedicated tool, female wheel can be relatively easily produced, and use female wheel to remove rolling roller then as traditional technology.Therefore,
Inventor once carries out test of many times, and the roll realized in a diameter of 300mm rolls out 0.15mm taper decorative pattern, next only
The roll on the existing photovoltaic production line of roll substitution of the present invention need to be used, you can produce new independent light trap type photovoltaic
Glass.
The process of the photovoltaic glass of the independent light structure of trap of the present invention is briefly described below.
Present inventor processes the mother with independent light structure of trap using above-mentioned special equipment and dedicated tool
Wheel, then, rolling roller is removed using the female wheel, finally the roll is installed on calender and suppresses glass, PMMA, PET etc.
Transparent plate.
From the point of view of technological layer, existing roll is process using etch, and its process is complicated, cost compared with
It is high.And the present invention uses above-mentioned rolling depression method, it is again simple and reliable that cost can either be reduced.
By the description of embodiment of above, those skilled in the art are it is understood that without departing from the present invention
Spirit and scope in the case of, can also to the present invention embodiment make various changes and replacement.These changes
All fall in claims of the present invention limited range with replacement.
Claims (9)
1. a kind of photovoltaic glass for solar cell, it is characterised in that the surface of the photovoltaic glass has independent annular
Structure, i.e. independent light structure of trap, wherein, the independent cirque structure includes outer wall and is nested in interior sharp cone distal projection,
The outer wall forms the outer shroud of the independent cirque structure, and the diameter of a circle of the top formation of the outer shroud is in 0.1~5mm models
In enclosing, the raised outer surface of the sharp cone distal forms inner ring, and institute's shape is intersected in the outer wall outer surface raised with the sharp cone distal
Into angle be less than or equal to 90 °, thus make to incide all light in the independent cirque structure in the outer wall and pointed cone
Multiple reflections and refraction are completed in the cirque structure that the raised outer surface of shape is formed, the photovoltaic glass will be first entered into
Surface incident light 99.8% capture.
2. photovoltaic glass according to claim 1, it is characterised in that be provided with the blank position of the independent light trapping
Smaller light trapping is to improve light transmission rate.
3. the photovoltaic glass stated according to claim 2, it is characterised in that the smaller light trapping is spill point cone shape.
4. the photovoltaic glass according to any one in claims 1 to 3, it is characterised in that the independent light trapping is in honeybee
Nest shape close-packed arrays.
5. the photovoltaic glass according to any one in claims 1 to 3, it is characterised in that the independent light trapping is in just
Square arrangement.
6. a kind of solar cell, it has photovoltaic glass for packaging protection, in Claims 1 to 5 described in any one
Glass.
7. a kind of device for being used to process the flower-shape on the surface of any one photovoltaic glass in Claims 1 to 5, its feature exist
In, the flower-shape be in independent cirque structure, i.e., independent ring-type light trapping structure, wherein, the independent cirque structure bag
Sharp cone distal in including outer wall and being nested in is raised, and the outer wall forms the outer shroud of the independent cirque structure, the outer shroud
For the diameter of a circle that top is formed in the range of 0.1~5mm, the raised outer surface of sharp cone distal forms inner ring, the outer wall with it is described
Intersecting the formed angle in the raised outer surface of sharp cone distal is less than or equal to 90 °.
8. a kind of method of photovoltaic glass for described in manufacturing claims 1~5, it is characterised in that comprise the following steps：
The female wheel of " independent light structure of trap " combination is processed using the processing unit (plant) described in claim 7；
Rolling roller is gone using the female wheel, the roll is installed on calender；
Photovoltaic glass is suppressed by the calender.
9. method according to claim 8, wherein, methods described can be used in glass, PMMA, PET transparent material plate
Manufacture.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450495.8A CN105470328B (en) | 2014-09-05 | 2014-09-05 | Independent light trap type photovoltaic glass |
| DE102015216994.4A DE102015216994A1 (en) | 2014-09-05 | 2015-09-04 | Photovoltaic glass with independent light traps |
| HK16107975.6A HK1220038A1 (en) | 2014-09-05 | 2016-07-08 | Photovoltaic glass with independent light traps |
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| CN201410450495.8A CN105470328B (en) | 2014-09-05 | 2014-09-05 | Independent light trap type photovoltaic glass |
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| CN105470328B true CN105470328B (en) | 2018-01-09 |
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| CN (1) | CN105470328B (en) |
| DE (1) | DE102015216994A1 (en) |
| HK (1) | HK1220038A1 (en) |
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| CN106533326B (en) * | 2016-11-03 | 2018-07-17 | 中国地质大学（武汉） | Micro-nano multiple light trapping type solar energy compound power-generating integrated apparatus |
| CN106452287B (en) * | 2016-12-05 | 2018-06-08 | 中国地质大学（武汉） | Micro-nano light trapping honeycomb energy storage combined generating device |
| CN107340555B (en) * | 2017-08-16 | 2019-07-02 | 西安应用光学研究所 | Big angle of divergence light absorption trap |
| CN111807690B (en) * | 2020-07-23 | 2022-08-05 | 麦耀华 | Preparation method of photovoltaic glass |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224978A (en) * | 1990-12-21 | 1993-07-06 | Saint-Gobain Vitrage International | Method for making hot rolled diffusing glazings |
| CN1596374A (en) * | 2001-11-28 | 2005-03-16 | 法国圣戈班玻璃厂 | Textured transparent panel having a high light transmission |
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| CN1157929A (en) | 1996-10-31 | 1997-08-27 | 汪凌志 | Optical element for controling surface image changing mirror surface reflection and its manufacturing method |
| US6778336B2 (en) * | 2002-08-02 | 2004-08-17 | Illinois Tool Works Inc. | Reduced visibility surface |
| TWI453927B (en) * | 2011-06-29 | 2014-09-21 | Ind Tech Res Inst | Multi-reflection structure and photo-electric device |
| CN102623578A (en) | 2012-02-15 | 2012-08-01 | 潘慧英 | Aperture array light trap technology applied to thin-film solar cell |
| CN204167330U (en) * | 2014-09-05 | 2015-02-18 | 严世杰 | Independent light trap type photovoltaic glass |
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2014
- 2014-09-05 CN CN201410450495.8A patent/CN105470328B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224978A (en) * | 1990-12-21 | 1993-07-06 | Saint-Gobain Vitrage International | Method for making hot rolled diffusing glazings |
| CN1596374A (en) * | 2001-11-28 | 2005-03-16 | 法国圣戈班玻璃厂 | Textured transparent panel having a high light transmission |
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| Publication number | Publication date |
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| CN105470328A (en) | 2016-04-06 |
| HK1220038A1 (en) | 2017-04-21 |
| DE102015216994A1 (en) | 2016-03-10 |
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