CN209328922U - A kind of reflective glue film, Reflecting backboard and photovoltaic module - Google Patents

A kind of reflective glue film, Reflecting backboard and photovoltaic module Download PDF

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Publication number
CN209328922U
CN209328922U CN201822204172.7U CN201822204172U CN209328922U CN 209328922 U CN209328922 U CN 209328922U CN 201822204172 U CN201822204172 U CN 201822204172U CN 209328922 U CN209328922 U CN 209328922U
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CN
China
Prior art keywords
reflective
glue film
cell piece
photovoltaic module
base
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Active
Application number
CN201822204172.7U
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Chinese (zh)
Inventor
谭丹萍
杨连丽
卜俊伟
许涛
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.)
CSI Cells Co Ltd
Canadian Solar Inc
Canadian Solar Manufacturing Changshu Inc
Original Assignee
Canadian Solar Manufacturing Changshu Inc
CSI Solar Technologies Inc
Atlas Sunshine Power Group 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.)
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Publication date
Application filed by Canadian Solar Manufacturing Changshu Inc, CSI Solar Technologies Inc, Atlas Sunshine Power Group Co Ltd filed Critical Canadian Solar Manufacturing Changshu Inc
Priority to CN201822204172.7U priority Critical patent/CN209328922U/en
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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
    • Y02E10/52PV systems with concentrators

Abstract

The utility model belongs to technical field of photovoltaic modules, discloses a kind of reflective glue film, Reflecting backboard and photovoltaic module.Wherein, reflective glue film includes packaging adhesive film and reflective membrane, reflective membrane is grid-shaped to be set on packaging adhesive film, the mesh of the grid of reflective membrane and the cell piece of photovoltaic module correspond, enable reflective membrane that the gap of cell piece is completely covered, reflective membrane includes that the base that successively layer is deposited, reflective structure layer and insulating layer, base are set on packaging adhesive film.The reflective glue film can reflect the sunlight of cell piece gap location, so that the sunlight of reflection is efficiently used by cell piece, improve the transfer efficiency of photovoltaic module.

Description

A kind of reflective glue film, Reflecting backboard and photovoltaic module
Technical field
The utility model relates to technical field of photovoltaic modules more particularly to a kind of reflective glue films, Reflecting backboard and photovoltaic group Part.
Background technique
It using solar power generation is a kind of current major way for utilizing solar energy by photovoltaic module.By solar battery It after piece welding, is laid between foreboard and back plate, forms laminate by the way that laminating machine is fixed, then using photovoltaic component frame to layer Casting die surrounding, which is packaged protection, can form photovoltaic module.
After several welding of battery film, there are gap between cell piece and cell piece, sunlight is directed through in gap portion, It can not be absorbed and utilized by cell piece.With the promotion of photovoltaic module power, the benefit in the cell piece gap of photovoltaic module how is improved With being the major issue of lifting assembly power.The major way of raising gap light utilization is in existing conventional photovoltaic assemblies By the EVA laid between backboard and back plate (Polyethylene vinylacetate, polyethylene-polyvinyl acetate copolymerization Object) glue film is arranged to white, and when sunlight is from cell piece gap location directive backboard, white packaging adhesive film can be by sunlight Reflection, the sunlight after enabling reflection are absorbed and utilized by cell piece.However white packaging adhesive film can bring the appearance after lamination Problem, such as fold etc.;White packaging adhesive film does not have orienting reflex function simultaneously, and the light after reflection relatively disperses, can not be most Bigization utilizes the light of gap location.
Utility model content
One of the utility model is designed to provide a kind of reflective glue film, can reflect the sun of cell piece gap location Light enables the sunlight of reflection to be efficiently used by cell piece.
For this purpose, the utility model uses following technical scheme:
A kind of reflective glue film, including packaging adhesive film and reflective membrane, the reflective membrane is grid-shaped to be set to the packaging plastic On film, the mesh of the grid of the reflective membrane and the cell piece of photovoltaic module are corresponded, and the reflective membrane is applied including successively layer Base, reflective structure layer and insulating layer, the base is set on the packaging adhesive film.
Preferably, the reflective structure layer includes several reflecting units, the reflecting unit includes at least two symmetrical And in the reflective surface of angle setting.
Preferably, the shape of the reflecting unit is triangular prism shape, the reflecting unit is arranged successively in the base On.
Preferably, the shape of the reflecting unit is tetrapyamid shape, several reflecting unit arrays are set to described In the base and bottom edge of the adjacent reflecting unit is disposed proximate to.
Preferably, the base is made of poly terephthalic acid class plastics.
Preferably, the insulating layer is the silicon coating coated on reflective structure layer upper surface.
Preferably, the insulating layer is made of polyethylene-polyvinyl acetate copolymer.
Another of the utility model is designed to provide a kind of Reflecting backboard, can reflect the sun of cell piece gap location Light enables the sunlight of reflection to be efficiently used by cell piece.
For this purpose, the utility model uses following technical scheme:
A kind of Reflecting backboard, including above-mentioned reflective glue film.
The further object of the utility model is to provide a kind of photovoltaic module, can efficiently use cell piece gap location Sunlight, high conversion efficiency.
For this purpose, the utility model uses following technical scheme:
A kind of photovoltaic module, including above-mentioned Reflecting backboard.
The utility model has the beneficial effects that reflective glue film provided by the utility model includes packaging adhesive film and reflective membrane, instead Light film is grid-shaped to be set on packaging adhesive film, and the mesh of the grid of reflective membrane and the cell piece of photovoltaic module correspond, and is made The gap that cell piece can be completely covered in reflective membrane is obtained, reflective membrane includes base, reflective structure layer and the insulation that successively layer is deposited Layer, base are set on packaging adhesive film.The sunlight of cell piece gap location can be reflexed to photovoltaic module by the reflective glue film Foreboard, and by foreboard secondary reflection to cell piece, enabling the sunlight of reflection be efficiently used by cell piece, improve photovoltaic The transfer efficiency of component.
Detailed description of the invention
Fig. 1 is the cross section structure schematic diagram of photovoltaic module provided by the utility model;
Fig. 2 is the cross section structure schematic diagram of Reflecting backboard provided by the utility model;
Structural schematic diagram when Fig. 3 is reflective membrane provided by the utility model and cell piece assembly;
Fig. 4 is a kind of cross section structure schematic diagram of reflective membrane provided by the utility model;
Fig. 5 is another cross section structure schematic diagram of reflective membrane provided by the utility model.
In figure:
1, Reflecting backboard;2, cell piece;3, front layer sealing film;4, foreboard;
11, substrate;12, reflective glue film;13, fluorine film layer;
121, packaging adhesive film;122, reflective membrane;
1221, base;1222, reflective structure layer;1223, insulating layer;1224, mesh.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
The utility model provides a kind of photovoltaic module.After solar battery sheet completes, monomer solar battery Piece cannot directly do power supply use, and making power supply must be connected by way of series and parallel by several single battery pieces and tightly be sealed Dress up component.Photovoltaic module (being also solar panel) is core and solar energy hair in solar power system Most important part in electric system.The effect of photovoltaic module is to convert solar energy into electrical energy, and be sent in battery and store Come, or pushes loaded work piece.
As shown in Figure 1, photovoltaic module provided by the utility model includes foreboard 4, backboard, cell piece string and frame, battery Piece string is made of several cell pieces 2, and several cell pieces 2, which are first connected, obtains high voltage, then after acquisition high current in parallel, finally by One diode (preventing electric current from feeding back) then exports.Cell piece string is needed through foreboard 4 and backboard after completing by its envelope Dress, to be protected to it.Front layer sealing film 3 is laid between foreboard 4 and cell piece string, front layer sealing film 3 can be EVA (Polyethylene vinylacetate, polyethylene-polyvinyl acetate copolymer) glue film has superior adhesion strength, resistance to The performances such as long property, optical characteristics.The component laid is put into laminating machine and is laminated, each layer is made to bond together.Pass through lamination After machine lamination, then using frame it is packaged protection and can forms photovoltaic module.Frame can increase the resistance to compression of photovoltaic module by Power intensity, further sealed cell piece string, prolongs the service life.
After the welding of several cell pieces 2, there are gap between cell piece 2 and cell piece 2, sunlight is straight in gap portion Transmission is connect, can not be absorbed and utilized by cell piece 2.In order to improve the efficiency of photovoltaic module, it is made to make full use of sunlight, this implementation The backboard for the photovoltaic module that example provides is Reflecting backboard 1, and Reflecting backboard 1 can reflect that this is reflective from 2 gap location directive of cell piece The sunlight of backboard 1 makes the part sunlight reflex to foreboard 4, and is reflexed on cell piece 2 by foreboard 4, is inhaled by cell piece 2 It receives and utilizes.
Specifically, as shown in Fig. 2, Reflecting backboard provided in this embodiment 1 includes substrate 11, reflective glue film 12 and fluorine film layer 13, substrate 11 is made of PET (Polyethylene Terephthalate, poly terephthalic acid class plastics), and it is anti-to play support The effect of light back board 1;Reflective glue film 12 is set to the medial surface of substrate 11, for the sunlight at non-reflective gap, and meanwhile it is reflective Glue film 12 provides bonding force, convenient for bonding between lamination stages Reflecting backboard 1 and cell piece string;Fluorine film layer 13 is set to base The lateral surface of plate 11 is made, from Reflecting backboard 1 of PVDF (Polyvinylidene Difluoride, polyvinylidene fluoride) Outside is protected, and insulation blocks water, and extends the service life of photovoltaic module.
As shown in figure 3, reflective glue film 12 includes packaging adhesive film 121 and reflective membrane 122, the grid-shaped setting of reflective membrane 122 In on packaging adhesive film 121, the mesh 1224 of the grid of reflective membrane 122 and the cell piece 2 of photovoltaic module are corresponded.That is cell piece 2 when being placed on reflective membrane 122, the corresponding mesh 1224 of each cell piece 2, and at each grid reflective membrane 122 width Greater than the gap between cell piece 2, specifically, the width of reflective membrane 122 can be 2~20mm, such as: 2mm, 4mm, 6mm, 8mm,10mm,12mm,14mm,16mm,18mm,20mm.The gap of cell piece 2 can be completely covered in reflective membrane 122, effectively will The sunlight of 2 gap location of cell piece reflexes to foreboard 4.
As shown in figure 4, reflective membrane 122 includes base 1221, reflective structure layer 1222 and the insulating layer that successively layer is deposited 1223, base 1221 plays a supporting role, and can be made of PET, and base 1221 is set on packaging adhesive film 121, reflective structure Layer 1222 is configured as reflexing to the light of the gap location between cell piece 2 on cell piece 2.The reflective glue film 12 can reflect electricity The sunlight of 2 gap location of pond piece enables the sunlight of reflection to be efficiently used by cell piece 2, improves the conversion of photovoltaic module Efficiency.
Specifically, reflective structure layer 1222 includes several reflecting units, and reflecting unit includes at least two symmetrically and in folder The reflective surface of angle setting.After solar energy is irradiated on reflective membrane 122, reflective structure layer 1222 is irradiated to through insulating layer 1223 Each reflecting unit, the reflective surface of reflecting unit reflexes to sunlight after cell piece 2 to be absorbed and utilized by cell piece 2.Reflective surface Surface can be the coating with mirror reflection effect, can be by sun luminous directional reflectance.The angle of two reflective surfaces can be with It is 60 °~90 °, such as can be with are as follows: 60 °, 65 °, 70 °, 75 °, 80 °, 85 °, 90 °.It is arranged by setting at least two in angle Reflective surface, sunlight is when being incident on reflective structure, by the reflection of reflective surface or by the company of two reflective surfaces Continuous reflection can reflex to foreboard 4, and reflex to cell piece 2 by foreboard 4, and efficiency is relatively conventional to be arranged white encapsulation on backboard The effect of glue film is high by 0.5~1%.
The shape of reflecting unit can be triangular prism shape, and reflecting unit is arranged successively in base 1221.Reflecting unit Shape may be tetrapyamid shape, several reflecting unit arrays be set in base 1221 and the bottom edge of adjacent reflecting unit close to Setting.
Insulating layer 1223 is set to the upper surface of reflective structure layer 1222, plays isolation reflective structure layer 1222 and cell piece 2 effect, specifically, insulating layer 1223 can be the silicon coating coated on 1222 upper surface of reflective structure layer, referring to Fig. 4 institute Show, silicon coating is coated on the reflecting surface of each reflecting unit.Insulating layer 1223 is also possible to the glue film made of EVA, such as Fig. 5 Shown, the top surface of insulating layer 1223 is plane, and bottom surface and reflective structure cooperate.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in Within the protection scope of the utility model claims.

Claims (9)

1. a kind of reflective glue film, which is characterized in that including packaging adhesive film (121) and reflective membrane (122), the reflective membrane (122) It is grid-shaped to be set on the packaging adhesive film (121), the mesh (1224) and photovoltaic module of the grid of the reflective membrane (122) Cell piece (2) correspond, the reflective membrane (122) includes the base (1221) that successively layer is deposited, reflective structure layer (1222) And insulating layer (1223), the base (1221) are set on the packaging adhesive film (121).
2. reflective glue film according to claim 1, which is characterized in that the reflective structure layer (1222) includes several reflective Unit, the reflecting unit include at least two reflective surfaces symmetrical and in angle setting.
3. reflective glue film according to claim 2, which is characterized in that the shape of the reflecting unit is triangular prism shape, institute Reflecting unit is stated to be arranged successively on the base (1221).
4. reflective glue film according to claim 2, which is characterized in that the shape of the reflecting unit is tetrapyamid shape, if Do that the reflecting unit array is set on the base (1221) and the bottom edge of the adjacent reflecting unit is disposed proximate to.
5. reflective glue film according to claim 1, which is characterized in that the base (1221) is moulded by poly terephthalic acid class Material is made.
6. reflective glue film according to claim 1, which is characterized in that the insulating layer (1223) is coated on described reflective The silicon coating of structure sheaf (1222) upper surface.
7. reflective glue film according to claim 1, which is characterized in that the insulating layer (1223) is by polyethylene-poly-vinegar acid Vinyl ester copolymers are made.
8. a kind of Reflecting backboard, including substrate (11), which is characterized in that the inner surface setting of the substrate (11) is wanted just like right Seek the described in any item reflective glue films of 1-7.
9. a kind of photovoltaic module, which is characterized in that including Reflecting backboard as claimed in claim 8.
CN201822204172.7U 2018-12-26 2018-12-26 A kind of reflective glue film, Reflecting backboard and photovoltaic module Active CN209328922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822204172.7U CN209328922U (en) 2018-12-26 2018-12-26 A kind of reflective glue film, Reflecting backboard and photovoltaic module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822204172.7U CN209328922U (en) 2018-12-26 2018-12-26 A kind of reflective glue film, Reflecting backboard and photovoltaic module

Publications (1)

Publication Number Publication Date
CN209328922U true CN209328922U (en) 2019-08-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112133783A (en) * 2020-08-12 2020-12-25 重庆神华薄膜太阳能科技有限公司 Photovoltaic power generation device and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112133783A (en) * 2020-08-12 2020-12-25 重庆神华薄膜太阳能科技有限公司 Photovoltaic power generation device and manufacturing method thereof

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province

Patentee after: CSI Cells Co.,Ltd.

Patentee after: Changshu Artes Sunshine Power Technology Co.,Ltd.

Patentee after: Atlas sunshine Power Group Co.,Ltd.

Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province

Patentee before: CSI Cells Co.,Ltd.

Patentee before: Changshu Artes Sunshine Power Technology Co.,Ltd.

Patentee before: CSI SOLAR POWER GROUP Co.,Ltd.

CP01 Change in the name or title of a patent holder