CN102945880B - Photovoltaic module with functions of reducing reflection and increasing efficiency - Google Patents

Photovoltaic module with functions of reducing reflection and increasing efficiency Download PDF

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Publication number
CN102945880B
CN102945880B CN201210526929.9A CN201210526929A CN102945880B CN 102945880 B CN102945880 B CN 102945880B CN 201210526929 A CN201210526929 A CN 201210526929A CN 102945880 B CN102945880 B CN 102945880B
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China
Prior art keywords
layer
reflection
photovoltaic module
refractive index
reducing
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Expired - Fee Related
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CN201210526929.9A
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Chinese (zh)
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CN102945880A (en
Inventor
沈晓东
钟朝伟
康佩
顾杰
黄梅
周卫卫
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JIANGSU GORICHEN NEW MATERIALS CO Ltd
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JIANGSU GORICHEN NEW MATERIALS CO Ltd
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    • 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

Abstract

The invention discloses a photovoltaic module with functions of reducing reflection and increasing efficiency. The photovoltaic module comprises a first reflection-reducing layer, a high-transparency liquid silica gel layer, a battery piece, a high-transparency liquid silica gel layer and a second reflection-reducing layer which are superposed from top to bottom in sequence, wherein sealing rubber strips are uniformly arranged on the edge of the photovoltaic module; and each of the first reflection-reducing layer and the second reflection-reducing layer comprises a reflection-reducing through film. As one of optimal application schemes, each reflection-reducing through film comprises an anti-scratching layer with a refractive index of 1.40, a first polymer layer with a refractive index of 1.45, a second polymer layer with a refractive index of 1.50, a third polymer layer with a refractive index of 1.59 and a surface treatment layer which are superposed from top to bottom in sequence. The photovoltaic module disclosed by the invention small weight, high light absorbing efficiency, high generating efficiency, easiness in preparation, low cost and long service life.

Description

A kind of photovoltaic module with anti-reflection synergistic function
Technical field
The present invention relates to a kind of photovoltaic module, particularly a kind of photovoltaic module with anti-reflection synergistic function.
Background technology
Refer to Fig. 1, conventional photovoltaic assembly generally includes with the toughened glass 2, EVA layer 4, cell piece 8, TPT layer 6 etc. of the fixing assembling of aluminium frame 1, and wherein each cell piece 8 is also by series connection such as interconnecting strip 3 grade and/or parallel connection, and is electrically connected with terminal box 7; Its preparation method comprises: after being stacked gradually by abovementioned layers material, at the temperature of about 140 DEG C, lamination 10-20 minute in vacuum laminator, then frames up with aluminium frame 1, and is sealed with silica gel 5 by edge part.Then this photovoltaic module has many deficiencies, such as:
(1) header board will use toughened glass, and aluminium frame will be used in side, and weight is very large;
(2) heat molten type EVA adhesive film at high temperature laminating packaging need be used, can cell piece be damaged, cause decrease of power generation;
(3) use toughened glass in this photovoltaic module, its optical transmittance, only about 90%, causes the generating efficiency of cell piece to be subject to larger restriction;
(4) this photovoltaic module system absorbs light by one side, and generating efficiency is low.
Summary of the invention
One object of the present invention is to provide a kind of photovoltaic module with anti-reflection synergistic function, and it is lightweight, and efficiency of light absorption is high, and generating efficiency is high, and is easy to preparation, with low cost, long service life.
Another object of the present invention is to provide a kind of anti-reflection transmission film, it effectively can improve the light impingement rate of photoelectric device, effectively can promote the generating efficiency of photovoltaic device, thus overcome deficiency of the prior art.
For achieving the above object, present invention employs following technical scheme:
A kind of photovoltaic module with anti-reflection synergistic function, comprise the first anti-reflection layer be cascading from top to bottom, high light-transmissive fluid layer of silica gel, cell piece, high light-transmissive fluid layer of silica gel and the second anti-reflection layer, and the edge part of described photovoltaic module all encapsulates with sealing joint strip;
Described first anti-reflection layer and the second anti-reflection layer all comprise anti-reflection transmission film.
Preferably, described cell piece comprises HIT cell piece.
A kind of anti-reflection transmission film, comprise the refractive index be cascading from top to bottom be 1.45 ~ 1.59 the first polymeric layer, refractive index be 1.45 ~ 1.59 the second polymer layer and refractive index be the trimerization nitride layer of 1.45 ~ 1.59, and the refractive index of the first polymeric layer, the second polymer layer and trimerization nitride layer increases progressively successively.
As preferably one of application scheme, described anti-reflection transmission film comprise the refractive index be cascading from top to bottom be 1.40 scratch-resistant layer, refractive index be 1.45 the first polymeric layer, refractive index be 1.50 the second polymer layer and refractive index be the trimerization nitride layer of 1.59.
Preferably, described terpolymer is stacked is arranged on a surface-treated layer.
Compared with prior art, advantage of the present invention comprises:
(1) use the polymer anti-reflection transmission film of lighting to substitute traditional toughened glass, and without the need to adopting aluminium frame, the overall weight of the photovoltaic module with anti-reflection synergistic function significantly being reduced, is convenient to movement and assembling;
(2) liquid silica gel material substitution heat molten type EVA is used, when assembling with cell piece without the need to high temperature lamination, damage can not be caused to cell piece, and, the good anti-yellowing property had because of liquid silica gel and light penetration, the performance of the photovoltaic module with anti-reflection synergistic function is improved, in addition, the packaging efficiency of the photovoltaic module with anti-reflection synergistic function is also made to be greatly improved, again and, because cell piece upper and lower all arranges layer of silica gel, the cushioning supportive to cell piece and protection also better can be realized;
(3) by adopting the anti-reflection transmission film with high light line transmitance, particularly all adopting high anti-reflection anti-reflection transmission film at the front and back of cell piece, effectively can improve the generating efficiency of cell piece.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of photovoltaic module in prior art;
Fig. 2 is the structural representation of a kind of anti-reflection transmission film in a preferred embodiment of the present invention;
Fig. 3 is a kind of structural representation with the photovoltaic module of anti-reflection synergistic function in a preferred embodiment of the present invention;
Description of reference numerals: aluminium frame 1, toughened glass 2, interconnecting strip 3, EVA layer 4, silica gel 5, TPT layer 6, terminal box 7, cell piece 8, there is photovoltaic module 10, first anti-reflection layer 11 of anti-reflection synergistic function, high light-transmissive fluid layer of silica gel 12, cell piece 13, high light-transmissive fluid layer of silica gel 14, second anti-reflection layer 15, sealing joint strip 16, scratch-resistant layer 101, first polymeric layer 102, the second polymer layer 103, trimerization nitride layer 104, surface-treated layer 105.
Embodiment
Below in conjunction with a preferred embodiment and accompanying drawing, technical scheme of the present invention is further described.
An aspect of the present embodiment relates to a kind of anti-reflection transmission film, comprise the refractive index be cascading from top to bottom be 1.45 ~ 1.59 the first polymeric layer, refractive index be 1.45 ~ 1.59 the second polymer layer and refractive index be the trimerization nitride layer of 1.45 ~ 1.59, and the refractive index of the first polymeric layer, the second polymer layer and trimerization nitride layer is all different.
Preferably, the refractive index of the first polymeric layer, the second polymer layer and trimerization nitride layer increases successively.
As one of preferred concrete scheme, consult Fig. 2, this anti-reflection transmission film comprise the refractive index be cascading from top to bottom be 1.40 scratch-resistant layer 101, refractive index first polymeric layer 102 that is 1.45, the refractive index the second polymer layer 103 that is 1.50, refractive index be 1.59 trimerization nitride layer 104 and surface-treated layer 105, this surface-treated layer 105 contributes to the adhesive property improving this anti-reflection transmission film and other element.
Further, the suitable lightweight height printing opacity macromolecular material that aforementioned first polymeric layer ~ the trimerization nitride layer can adopt this area to commonly use is made, as PMMA, PC material or its alloy material.
The high-abrasive material etc. with high transmission rate that aforementioned scratch-resistant layer can adopt this area to commonly use is made by techniques such as sputters, as AL 2o 3, SiO 2deng metal oxide.
Consult Fig. 3, another aspect of the present embodiment relates to a kind of photovoltaic module 10 with anti-reflection synergistic function, comprise the first anti-reflection layer 11 be cascading from top to bottom, high light-transmissive fluid layer of silica gel 12, cell piece 13, high light-transmissive fluid layer of silica gel 14, second anti-reflection layer 15, and the surrounding edge of described photovoltaic module 10 is provided with sealing joint strip 16.First, second anti-reflection layer 11,15 described is adopt aforesaid anti-reflection transmission film.
Aforesaid high light-transmissive fluid silica gel material can adopt commercially available various high light-transmissive fluid silica gel material, such as, the bonding high transparency liquid silica gel of selectivity of Dongguan City Sheng Wei Chemical Co., Ltd. product, the model of Long Tai Electron Material Co., Ltd of Shenzhen product are the liquid silica gel etc. of LT-6580A/B.
Aforesaid " high printing opacity " refers to that light transmittance is more than 94%, and reflecting rate is more than 90%.
This preparation method with the photovoltaic module 10 of anti-reflection synergistic function comprises: after being stacked gradually by abovementioned layers material, then with sealing joint strip by hermetically sealed for its surrounding edge, obtains target product.
This photovoltaic module with anti-reflection synergistic function has the photovoltaic module of anti-reflection synergistic function than tradition, not only structure is simple, lighter weight, and is easier to processing, cost is more cheap, and has better heat dispersion and generating efficiency and longer useful life.
Above preferred embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, done various conversion or modification, all belong to category of the present invention.

Claims (3)

1. one kind has the photovoltaic module of anti-reflection synergistic function, it is characterized in that, it comprises the first anti-reflection layer be cascading from top to bottom, high light-transmissive fluid layer of silica gel, cell piece, high light-transmissive fluid layer of silica gel and the second anti-reflection layer, and the edge part of described photovoltaic module all encapsulates with sealing joint strip;
Described first anti-reflection layer and the second anti-reflection layer all comprise anti-reflection transmission film, described anti-reflection transmission film comprise the refractive index be cascading from top to bottom be 1.40 scratch-resistant layer, refractive index be 1.45 the first polymeric layer, refractive index be 1.50 the second polymer layer and refractive index be the trimerization nitride layer of 1.59.
2. the photovoltaic module with anti-reflection synergistic function according to claim 1, is characterized in that, described cell piece comprises HIT cell piece.
3. the photovoltaic module with anti-reflection synergistic function according to claim 1, is characterized in that, described terpolymer is stacked to be arranged on a surface-treated layer.
CN201210526929.9A 2012-12-10 2012-12-10 Photovoltaic module with functions of reducing reflection and increasing efficiency Expired - Fee Related CN102945880B (en)

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Publication number Priority date Publication date Assignee Title
CN104241426B (en) * 2014-09-10 2017-04-12 江苏金瑞晨新材料有限公司 Anti-dazzle weather-proof composite material
CN104241425B (en) * 2014-09-10 2017-02-15 江苏金瑞晨新材料有限公司 High heat dissipation photovoltaic module of symmetrical structure
CN105403985B (en) * 2015-12-30 2018-04-20 中国华录集团有限公司 DLP projector miniaturization TIR prism system
CN105957911B (en) * 2016-06-16 2018-01-09 常州天合光能有限公司 Solar components adhesive tape edge sealing laminating technology and its adhesive tape edge sealing instrument
CN106129159A (en) * 2016-07-26 2016-11-16 无锡中洁能源技术有限公司 The solar cell backboard that a kind of reflecting properties is good

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US5494743A (en) * 1992-08-20 1996-02-27 Southwall Technologies Inc. Antireflection coatings
CN201213141Y (en) * 2007-12-25 2009-03-25 西安海晶光电科技有限公司 Double surface organic thin-film solar cell
CN201985134U (en) * 2011-03-05 2011-09-21 常州天合光能有限公司 Solar cell module with high light transmission structure
CN102254967A (en) * 2011-06-30 2011-11-23 浙江正泰太阳能科技有限公司 Thin film solar cell, component and manufacturing methods thereof
CN102315331A (en) * 2011-10-08 2012-01-11 保定天威集团有限公司 Lightweight film solar module and manufacturing method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494743A (en) * 1992-08-20 1996-02-27 Southwall Technologies Inc. Antireflection coatings
CN201213141Y (en) * 2007-12-25 2009-03-25 西安海晶光电科技有限公司 Double surface organic thin-film solar cell
CN201985134U (en) * 2011-03-05 2011-09-21 常州天合光能有限公司 Solar cell module with high light transmission structure
CN102254967A (en) * 2011-06-30 2011-11-23 浙江正泰太阳能科技有限公司 Thin film solar cell, component and manufacturing methods thereof
CN102315331A (en) * 2011-10-08 2012-01-11 保定天威集团有限公司 Lightweight film solar module and manufacturing method thereof

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