CN105932087A - Light steering bar - Google Patents

Light steering bar Download PDF

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Publication number
CN105932087A
CN105932087A CN201610375663.0A CN201610375663A CN105932087A CN 105932087 A CN105932087 A CN 105932087A CN 201610375663 A CN201610375663 A CN 201610375663A CN 105932087 A CN105932087 A CN 105932087A
Authority
CN
China
Prior art keywords
light
bar
turns
micro structure
microstructured layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610375663.0A
Other languages
Chinese (zh)
Inventor
孙建成
谢高翔
李放
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Jinghua Laser Technology Co Ltd
Original Assignee
Zhejiang Jinghua Laser Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Jinghua Laser Technology Co Ltd filed Critical Zhejiang Jinghua Laser Technology Co Ltd
Priority to CN201610375663.0A priority Critical patent/CN105932087A/en
Publication of CN105932087A publication Critical patent/CN105932087A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor 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
    • H01L31/054Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0547Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor 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
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/048Encapsulation of modules
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/52PV systems with concentrators

Abstract

The invention discloses a light steering bar, comprising a base material layer, a microstructure layer arranged on the base material layer and a reflective layer covering the microstructure layer, wherein the microstructure layer saw tooth-shaped and comprises a plurality of microstructures, the microstructure has a cross section comprising at least two side faces, and the reflective layer covers the side faces of the microstructure; and the included angle of the microstructure and the length extension direction of the light steering bar is 0-90 degrees. The light steering bar disclosed by the invention is arranged in a photovoltaic module to effectively solve the light utilization problem in a non battery sheet area of the photovoltaic module and greatly improve the light conversion efficiency of the photovoltaic module.

Description

A kind of light turns to bar
Technical field
The present invention relates to a kind of light and turn to bar, belong to field of photovoltaic technology.
Background technology
Solar energy is the regenerative resource of a kind of environmental protection.Along with the increase of population in the world and to current main flow can not The dependence of the Fossil fuel of regeneration consumes with a large amount of, not only brings the worry of energy depletion to the whole world, also brings environmental pollution Worry, the novel renewable energy of the environmental protection of urgent needs exploitation simultaneously.Nowadays, based on photogenic voltage principle, the sun is utilized The light generation monocrystal silicon of power, polysilicon photovoltaic cells assembly are the most highly developed.The most conventional photovoltaic module, depends on from lower to upper Secondary by backboard, encapsulation glue-line, cell piece array, encapsulation glue-line and header board etc. form.General on photovoltaic module longitudinal direction, electricity Current lead-through is realized to reach the purpose of component power output by tin-coated copper strip welding series connection between the cell piece of pond chip arrays.
Conventional batteries sheet surface is covered with 2 ~ 4 weldings wide for about 2mm, accounts for the 3-4% of cell area, additionally, cell piece Between there is also certain interval (being generally laterally spaced about 2-3mm, longitudinal pitch about 3-5mm), and the 4 of Monocrystalline silicon cell piece There is hypotenuse in individual angle, can form an approximation octagon white space in the middle of 4 cell pieces, and above-mentioned gap and white space are about Account for about the 3-5% of whole assembly array.The most effectively utilize the sunlight of cell piece welding, gap and white space the most all In exploration.
In view of this, this is studied by the present inventor, develops a kind of light specially and turns to bar, this case thus to produce.
Summary of the invention
It is an object of the invention to provide a kind of light and turn to bar, the light efficiently solving photovoltaic module non-battery panel region utilizes Problem.
To achieve these goals, the solution of the present invention is:
A kind of light turns to bar, including substrate layer, the microstructured layers being arranged on substrate layer, and cover on microstructured layers anti- Photosphere, described microstructured layers is zigzag, and including several micro structures, described micro structure has the horizontal stroke including at least 2 sides Cross section, described reflector layer covers on the side of micro structure;Described micro structure and light turn to the angle of the length bearing of trend of bar It it is 0 ~ 90 °.
As preferably, described micro structure and light turn to the angle of the length bearing of trend of bar to be 30 ~ 60 °.So it is designed with It is beneficial to light and turns to the stability (be hardly damaged, incomplete) of bar micro structure, be conducive to improving light conversion efficiency.
As preferably, described micro structure cross section is triangle, and the angle of two sides and bottom surface is 30 ~ 75 °.
As preferably, each micro structure in described microstructured layers is parallel to each other, and the side of adjacent 2 micro structures is connected Connect.
As preferably, described light turns to the width of bar to be 1-20mm, depending on different cover widths.
As preferably, described substrate layer thickness is 50 μm ~ 250mm, and described micro structure highlights 10 μm ~ 30 μm from substrate layer, Reflector layer thickness is 380-600.
As preferably, described substrate layer material is PET(polyethylene terephthalate), BOPP(biaxial stretching polypropylene Alkene), PVC(polrvinyl chloride), BOPET (polyester), CPE(be cast polyethylene) or ABS(butadiene acrylonitrile styrene group The terpolymer become);Described microstructured layers uses UV-cured resin, specially epoxy acrylate, polyurethane propylene Acid esters or polyester acrylate;Described reflector layer is the coat of metal, specially aluminium coated or silver coating.
Light of the present invention turns to bar can cover the non-battery panel region at photovoltaic module, including cell piece periphery Welding region on white space and cell piece, is used for the refraction of light, the reflection increasing in photovoltaic module, and then improves photovoltaic group The light conversionization efficiency of part.Above-mentioned light turns to the micro structure bearing of trend of bar and light to turn to the length bearing of trend of bar to be a clamp Angle, the setting of angle is more beneficial for light and turns to the stability of bar structure, can optimize raising light conversion efficiency simultaneously.
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is that the light of embodiment 1 turns to bar perspective view;
Fig. 2 is that the light of embodiment 1 turns to sliver transvers section figure;
Fig. 3 is that the light of embodiment 2 turns to bar perspective view;
Fig. 4 is that the light of embodiment 2 turns to bar top perspective view.
Detailed description of the invention
Embodiment 1
As shown in Figure 1-2, a kind of light turns to bar, including substrate layer 1, the microstructured layers 2 being arranged on substrate layer 1, and covers Reflector layer 3 on microstructured layers 2.Described microstructured layers 2 is zigzag, the micro structure 21 mutually linked up including several, institute Stating micro structure 21 and have the cross section including 2 sides, described reflector layer 3 covers on the side of micro structure 21.In this enforcement In example, described micro structure 21 cross section is equilateral triangle, α=60 °.Its length bearing of trend of described micro structure 21 turns to light The angle of the length bearing of trend of bar=0 °, i.e. its length bearing of trend of micro structure 2 and the length bearing of trend of micro structure bar 21 It is parallel to each other.
Depending on light turns to thickness and the width position according to application of bar, the light described in the present embodiment turns to bar to apply at light On the welding of photovoltaic assembly cell piece array, therefore, thinner thickness, width is 3mm, and substrate layer 1 thickness is 50 μm, described micro-knot Structure 21 highlights 20 μm from substrate layer 1, and reflector layer thickness is 400.Described substrate layer 1 uses PET film, described microstructured layers 2 to use Epoxy acrylate;Described reflector layer is aluminium coated.
Light described in the present embodiment turns to bar can cover the welding region on cell piece, is used for increasing in photovoltaic module The refraction of light, reflection, and then improve photovoltaic module light conversionization efficiency.
Embodiment 2
As shown in Figure 3-4, a kind of light turns to bar, including substrate layer 1, the microstructured layers 2 being arranged on substrate layer 1, and covers Reflector layer 3 on microstructured layers 2.Described microstructured layers 2 is zigzag, the micro structure 21 mutually linked up including several, institute Stating micro structure 21 and have the cross section including 2 sides, described reflector layer covers on the side of micro structure 21.At the present embodiment In, described micro structure 21 cross section is isosceles triangle, α=45 °.Its length bearing of trend of described micro structure 21 and light turn to bar The angle of length bearing of trend=45 °, be so designed with beneficially light turn to bar micro structure stability (be hardly damaged, residual Lack), be conducive to improving light conversion efficiency.
Light described in the present embodiment turns to bar to apply the non-battery sheet clear area at photovoltaic module, and therefore, thickness is thicker, wide Degree is 4-20mm, and substrate layer 1 thickness is 180 μm, and described micro structure 2 highlights 30 μm from substrate layer 1, and reflector layer thickness is 600. Described substrate layer 1 is BOPP film;Described microstructured layers 2 uses urethane acrylate;Described reflector layer is silver coating.Thicker Light turns to bar can reduce the difference in height between reflector layer 3 and photovoltaic module cell piece, it is ensured that the reflector efficiency of reflector layer 3.
Light of the present invention turns to bar can cover the non-battery sheet white space at photovoltaic module, is used for increasing photovoltaic The refraction of the light in assembly, reflection, and then improve the light conversionization efficiency of photovoltaic module.Above-mentioned light turns to the micro structure of bar to extend Direction and light turn to the length bearing of trend of bar in a certain angle, and the setting of angle is more beneficial for light and turns to stablizing of bar structure Property, raising light conversion efficiency can be optimized simultaneously.
Above-described embodiment and the product form of the graphic and non-limiting present invention and style, any art common Technical staff is suitably changed what it did or modifies, and all should be regarded as the patent category without departing from the present invention.

Claims (9)

1. a light turns to bar, it is characterised in that: include substrate layer, the microstructured layers being arranged on substrate layer, and cover Reflector layer on microstructured layers, described microstructured layers is zigzag, including several micro structures, described micro structure have include to The cross section of few 2 sides, described reflector layer covers on the side of micro structure;Described micro structure and light turn to the length of bar to prolong The angle stretching direction is 0 ~ 90 °.
2. a kind of light as claimed in claim 1 turns to bar, it is characterised in that: described micro structure and light turn to the length of bar to extend The angle in direction is 30 ~ 60 °.
3. a kind of light as claimed in claim 1 turns to bar, it is characterised in that: described micro structure cross section is triangle, two Side is 30 ~ 75 ° with the angle of bottom surface.
4. a kind of light as claimed in claim 1 turns to bar, it is characterised in that: each micro structure in described microstructured layers is mutual Parallel, the side of adjacent 2 micro structures is connected.
5. a kind of light as claimed in claim 1 turns to bar, it is characterised in that: described light turns to the width of bar to be 1-20mm.
6. a kind of light as claimed in claim 1 turns to bar, it is characterised in that: described substrate layer thickness is 50 μm ~ 250mm, institute Stating micro structure and highlight 10 μm ~ 30 μm from substrate layer, reflector layer thickness is 380-600.
7. light as claimed in claim 1 a kind of turns to bar, it is characterised in that: described substrate layer material is PET, BOPP, PVC, BOPET, CPE or ABS;Described microstructured layers uses UV-cured resin, and described reflector layer is the coat of metal.
8. a kind of light as claimed in claim 7 turns to bar, it is characterised in that: described microstructured layers employing epoxy acrylate, Urethane acrylate or polyester acrylate.
9. a kind of light as claimed in claim 7 turns to bar, it is characterised in that: described reflector layer is aluminium coated or silver coating.
CN201610375663.0A 2016-05-31 2016-05-31 Light steering bar Pending CN105932087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610375663.0A CN105932087A (en) 2016-05-31 2016-05-31 Light steering bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610375663.0A CN105932087A (en) 2016-05-31 2016-05-31 Light steering bar

Publications (1)

Publication Number Publication Date
CN105932087A true CN105932087A (en) 2016-09-07

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Family Applications (1)

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CN201610375663.0A Pending CN105932087A (en) 2016-05-31 2016-05-31 Light steering bar

Country Status (1)

Country Link
CN (1) CN105932087A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106505120A (en) * 2016-12-22 2017-03-15 苏州高德辰光电科技有限公司 Photovoltaic component back plate and photovoltaic cell component
CN108259002A (en) * 2018-03-22 2018-07-06 上海玛企电子科技有限公司 A kind of photovoltaic module reflectance coating and photovoltaic module
CN109545879A (en) * 2017-09-21 2019-03-29 张家港康得新光电材料有限公司 Light reflection structure layer and photovoltaic module with it

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5994641A (en) * 1998-04-24 1999-11-30 Ase Americas, Inc. Solar module having reflector between cells
US20070125415A1 (en) * 2005-12-05 2007-06-07 Massachusetts Institute Of Technology Light capture with patterned solar cell bus wires
CN102217090A (en) * 2008-11-19 2011-10-12 凸版印刷株式会社 Light reuse sheet, solar battery module, and light source module
CN103413861A (en) * 2013-07-18 2013-11-27 常州大学 Light reflecting thin film of photovoltaic module and method for fixing light reflecting thin film and soldering strip
CN103681924A (en) * 2013-12-26 2014-03-26 无锡市斯威克科技有限公司 Refraction type reflective welding belt
CN103681923A (en) * 2013-12-26 2014-03-26 无锡市斯威克科技有限公司 Oblique type reflective welding strip
CN203746874U (en) * 2013-12-27 2014-07-30 比亚迪股份有限公司 Solar cell module
CN204538042U (en) * 2015-03-04 2015-08-05 南通美能得太阳能电力科技有限公司 A kind of double-sided solar battery assembly
CN205680691U (en) * 2016-05-31 2016-11-09 浙江京华激光科技股份有限公司 A kind of light turns to bar

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5994641A (en) * 1998-04-24 1999-11-30 Ase Americas, Inc. Solar module having reflector between cells
US20070125415A1 (en) * 2005-12-05 2007-06-07 Massachusetts Institute Of Technology Light capture with patterned solar cell bus wires
CN102217090A (en) * 2008-11-19 2011-10-12 凸版印刷株式会社 Light reuse sheet, solar battery module, and light source module
CN103413861A (en) * 2013-07-18 2013-11-27 常州大学 Light reflecting thin film of photovoltaic module and method for fixing light reflecting thin film and soldering strip
CN103681924A (en) * 2013-12-26 2014-03-26 无锡市斯威克科技有限公司 Refraction type reflective welding belt
CN103681923A (en) * 2013-12-26 2014-03-26 无锡市斯威克科技有限公司 Oblique type reflective welding strip
CN203746874U (en) * 2013-12-27 2014-07-30 比亚迪股份有限公司 Solar cell module
CN204538042U (en) * 2015-03-04 2015-08-05 南通美能得太阳能电力科技有限公司 A kind of double-sided solar battery assembly
CN205680691U (en) * 2016-05-31 2016-11-09 浙江京华激光科技股份有限公司 A kind of light turns to bar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106505120A (en) * 2016-12-22 2017-03-15 苏州高德辰光电科技有限公司 Photovoltaic component back plate and photovoltaic cell component
CN109545879A (en) * 2017-09-21 2019-03-29 张家港康得新光电材料有限公司 Light reflection structure layer and photovoltaic module with it
CN108259002A (en) * 2018-03-22 2018-07-06 上海玛企电子科技有限公司 A kind of photovoltaic module reflectance coating and photovoltaic module

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Application publication date: 20160907