CN201913849U - Back plate material and photovoltaic component adopting same - Google Patents

Back plate material and photovoltaic component adopting same Download PDF

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Publication number
CN201913849U
CN201913849U CN2010206949629U CN201020694962U CN201913849U CN 201913849 U CN201913849 U CN 201913849U CN 2010206949629 U CN2010206949629 U CN 2010206949629U CN 201020694962 U CN201020694962 U CN 201020694962U CN 201913849 U CN201913849 U CN 201913849U
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CN
China
Prior art keywords
thermal
veneer
layer
photovoltaic module
arrest
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.)
Expired - Lifetime
Application number
CN2010206949629U
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Chinese (zh)
Inventor
闫广川
张慧娟
黄子健
夏君君
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.)
Canadian Solar Inc
Original Assignee
Canadian Solar Manufacturing Changshu Inc
Canadian Solar China Investment Co Ltd
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Publication date
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Priority to CN2010206949629U priority Critical patent/CN201913849U/en
Application granted granted Critical
Publication of CN201913849U publication Critical patent/CN201913849U/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

Abstract

A back plate material used for a photovoltaic component comprises a polymeric membrane layer. A heat collecting layer is compounded on one side of the polymeric membrane layer and adhered with the polymeric membrane layer by the aid of heat conductive adhesive. The photovoltaic component with a heat collecting function can be manufactured in a production process of the photovoltaic component adopting the back plate material only by the aid of original manufacture technique, the manufacture technique is simpler, and production cost is reduced.

Description

The photovoltaic module of back veneer material and use back veneer material
Technical field
The utility model relates to a kind of photovoltaic module, relates in particular to the back veneer material of being with heat collection function and the photovoltaic module that uses this back veneer material.
Background technology
Solar energy is a kind of new forms of energy of cleanliness without any pollution, makes full use of solar energy resources and can save limited fossil energy, reduces the pollution protection environment.In the solar utilization technique, photovoltaic power generation technology is an electric energy with conversion of solar energy directly, has security of operation, easy care, noiselessness, pollution-free, advantages such as utilization, adjustable scale on the spot, is subjected to the attention of various countries.One of important parameter of decision photovoltaic generation quality is exactly a photoelectric transformation efficiency.Along with continuous advancement in technology, the photoelectric transformation efficiency of photovoltaic cell more is greatly improved, but the absolute figure of photovoltaic cell conversion efficiency is still lower, greatly between 13%~20%, the solar radiant energy that shines the photovoltaic cell surface is not converted into electric energy more than 80%, but be converted into based on other energy loss of heat energy, wherein heat energy has aggravated the rising of photovoltaic battery temperature, and the photoelectric transformation efficiency of photovoltaic cell can raise along with the temperature of photovoltaic cell and reduce.At weather preferably, the temperature of photovoltaic cell can reach more than 70 ℃.It is about 0.4% that 1 ℃ of the every rising of photovoltaic battery temperature, power output reduce, and therefore when high temperature, the energy loss of photovoltaic cell is quite serious.Simultaneously, the photovoltaic cell life-span that is in the condition of high temperature for a long time also can reduce.In order to reduce the temperature of photovoltaic cell, improve the comprehensive utilization ratio of solar energy simultaneously, Many researchers is improved photovoltaic cell, developed photo-thermal integrated photovoltaic (photovoltaic/ thermal, PV/T) system, its combination property efficient is much in 60%, all is significantly increased than single hot-water heating system or photovoltaic system efficient.The PV/T system of photo-thermal integrated photovoltaic is the main direction that solar energy composite is used.
Present PV/T system mainly comprises photovoltaic module and is arranged at photovoltaic module thermal-arrest layer behind, photovoltaic module roughly by glass, packaging adhesive film (as Ethylene Vinyl Acetate, EVA, vinylacetate), battery sheet, packaging adhesive film, back veneer material are formed, common manufacture is after photovoltaic module is completed, the more bonding thermal-arrest layer at the back side of photovoltaic module.Described back veneer material mainly plays the protection component internal with isolated extraneous, and they have fabulous anti-environmental aging, ultraviolet irradiation and electric insulation functions, and back veneer material commonly used comprises polyvinyl fluoride composite membrane (TPT), polyimide film etc.The unnecessary heat that described thermal-arrest layer collection photovoltaics battery produces, and then by the mode of air-cooled or water-cooled unnecessary heat is taken away.Photovoltaic module manufacturer for the industrial chain downstream, lay the thermal-arrest layer at the photovoltaic module back side and need after the photovoltaic module manufacturing is finished, increase lamination and the lamination manufacturing process that the thermal-arrest layer is laid in photovoltaic module again, increase the process procedure of producing the PV/T system component, increased manufacturing cost; Secondly, this lamination and lamination operation cause the damage of photovoltaic module easily, and the overall optical photovoltaic assembly is in case damage is lost higher; Once more, whole PV/T system lay planarization, adhesion strength is restive, production cost is bigger, is difficult to be applicable to large-scale production.
The utility model content
The purpose of this utility model is to provide a kind of back veneer material, and it is convenient to the manufacturing of photovoltaic module.
The utility model purpose also is to provide a kind of photovoltaic module with Heat-collecting effect.
For realizing above utility model purpose, the utility model adopts following technical scheme: a kind of back veneer material, comprise macromolecule membranous layer, and wherein a side of macromolecule membranous layer is compounded with the thermal-arrest layer, and the two is bonding by heat-conducting glue.
As further improvement of the utility model, described thermal-arrest layer is the single rete that forms of the wherein a kind of material in metal with high thermal conductivity, pottery, the organic compound or the composite film that forms of two or more materials arbitrarily.
As further improvement of the utility model, combining between described macromolecule membranous layer and the described thermal-arrest layer is the plane formula syndeton.
As further improvement of the utility model, the gluing of surfaces of described macromolecule membranous layer and described thermal-arrest layer is uneven, and coincide mutually.
The further following technical scheme of the utility model: a kind of photovoltaic module comprises the glass plate, packaging adhesive film, battery sheet, packaging adhesive film and the back veneer material that stack gradually; Connect by packaging adhesive film between glass plate, battery sheet and the back veneer material, wherein said back veneer material comprises macromolecule membranous layer and the thermal-arrest layer that bonds together.
In technique scheme, described thermal-arrest layer is the single rete that forms of the wherein a kind of material in metal with high thermal conductivity, pottery, the organic compound or the composite film that forms of two or more materials arbitrarily
In technique scheme, the gluing of surfaces of macromolecule membranous layer and thermal-arrest layer is uneven, and coincide mutually.
In technique scheme, macromolecule membranous layer is connected with the plane formula that is combined into of thermal-arrest layer.
Compared to prior art, the utility model has adopted macromolecule membranous layer integrated and the back veneer material of thermal-arrest layer, state in the use in the production technology of photovoltaic module of back veneer material, only need adopt original manufacturing process, can obtain to have the photovoltaic module of heat collection function, manufacturing process is more simple, and processing cost reduces.
Description of drawings
Fig. 1 is the schematic diagram of first embodiment of the utility model back veneer material.
Fig. 2 is the schematic diagram of second embodiment of the utility model back veneer material.
Fig. 3 is the schematic diagram that the utility model uses the photovoltaic module of back veneer material.
The specific embodiment
Referring to figs. 1 to Fig. 2, the concrete structure of back veneer material 10 of the present utility model is at macromolecule membranous layer 3(such as polyvinyl fluoride composite membrane (TPT), polyimides etc.) the compound thermal-arrest layer 1 of a side.Thermal-arrest layer 1 and macromolecule membranous layer 3 between the two by heat-conducting glue 2 bondings.Described thermal-arrest layer 1 is the single rete that forms of the wherein a kind of material in metal with high thermal conductivity, pottery, the organic compound or the composite film that forms of two or more materials arbitrarily.Combining between macromolecule membranous layer 3 and the thermal-arrest layer 1 both can be plane formula syndeton (as shown in Figure 1), also can carry out embossing to their bonding surface and handle back bonding (as shown in Figure 2), make gluing of surfaces uneven, and coincide mutually, this structure has increased the contact area between two retes, and then can increase the cohesive force between them.
In better embodiment of the present utility model, the macromolecule membranous layer 3 of described back veneer material 10 can be selected the TPT film for use, and thermal-arrest layer 1 can be selected metal aluminum foil for use.Utilize screen printing technique that heat-conducting glue 2 is printed on the TPT film 3 earlier, then composition metal aluminium foil 1 on heat-conducting glue 2.Water pipe can be directly placed at the back side of aluminium foil 1 or air cooling device is taken away in order to the unnecessary heat that photovoltaic module is produced.The heat-conducting glue 2 that plays heat conduction and two kinds of functions of bonding can also can carry out precrosslink producing back veneer material 10 cross mouldings fully simultaneously, when producing photovoltaic module in the process of high-temperature vacuum lamination curing cross-linked again.
See also shown in Figure 3, it is the photovoltaic module 20 that adopts above-mentioned back veneer material 10, this photovoltaic module 20 comprises glass plate 13, packaging adhesive film 12 (as Ethylene Vinyl Acetate, EVA, vinyl-vinyl acetate), battery sheet 11, the packaging adhesive film 14 that is cascading.Described back veneer material 10 is formed by macromolecule membranous layer 3 and thermal-arrest layer 1 compound sticking, and glass plate 13, battery sheet 11, back veneer material 10 is bonding by packaging adhesive film 12,14.
The utility model also relates to described production method with photovoltaic module 20 of aforementioned back veneer material 10, at first, provides glass plate 13, packaging adhesive film 12, battery sheet 11, packaging adhesive film 14 and back veneer material 10.Secondly, glass plate 13, packaging adhesive film 12, battery sheet 11, packaging adhesive film 14 and back veneer material 10 are cascading, back veneer material 10 is arranged at the side away from glass plate 13, and the macromolecule membranous layer 3 and the packaging adhesive film 14 of back veneer material 10 fit.At last, the mode by vacuum lamination bonds together glass plate 13, packaging adhesive film 12, battery sheet 11, packaging adhesive film 14 and back veneer material 10 mutually and forms photovoltaic module 20.The frame 30 that the outside of the utility model photovoltaic module 20 also is equiped with metal material is used for fixing support photovoltaic module 20.
The beneficial effects of the utility model are, after in photovoltaic module, having adopted the back veneer material 10 of integrated macromolecule membranous layer 3 and thermal-arrest layer 1, only need adopt original manufacturing process, being about to back veneer material combines by the high-temperature vacuum lamination with other assemblies in the photovoltaic module, can obtain to have the photovoltaic module of heat collection function, manufacturing process is more simple.
In sum, it below only is preferred embodiment of the present utility model, should not limit scope of the present utility model with this, be that every simple equivalent of being done according to the utility model claims and utility model description changes and modifies, all should still belong in the scope that the utility model patent contains.

Claims (8)

1. a back veneer material comprises macromolecule membranous layer, it is characterized in that: a side of described macromolecule membranous layer is compounded with the thermal-arrest layer, and the two is bonding by heat-conducting glue.
2. back veneer material as claimed in claim 1 is characterized in that: described thermal-arrest layer is the single rete that forms of the wherein a kind of material in metal with high thermal conductivity, pottery, the organic compound or the composite film that forms of two or more materials arbitrarily.
3. back veneer material as claimed in claim 2 is characterized in that: combining between described macromolecule membranous layer and the described thermal-arrest layer is the plane formula syndeton.
4. back veneer material as claimed in claim 2 is characterized in that: the gluing of surfaces of described macromolecule membranous layer and described thermal-arrest layer is uneven, and coincide mutually.
5. a photovoltaic module comprises the glass plate, packaging adhesive film, battery sheet, packaging adhesive film and the back veneer material that stack gradually; Connect by packaging adhesive film between glass plate, battery sheet and the back veneer material, it is characterized in that: described back veneer material comprises macromolecule membranous layer and the thermal-arrest layer that bonds together.
6. photovoltaic module as claimed in claim 5 is characterized in that: described thermal-arrest layer is the single rete that forms of the wherein a kind of material in metal with high thermal conductivity, pottery, the organic compound or the composite film that forms of two or more materials arbitrarily.
7. photovoltaic module as claimed in claim 6 is characterized in that: the gluing of surfaces of described macromolecule membranous layer and described thermal-arrest layer is uneven, and coincide mutually.
8. photovoltaic module as claimed in claim 6 is characterized in that: described macromolecule membranous layer is connected with the plane formula that is combined into of described thermal-arrest layer.
CN2010206949629U 2010-12-31 2010-12-31 Back plate material and photovoltaic component adopting same Expired - Lifetime CN201913849U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN2010206949629U CN201913849U (en) 2010-12-31 2010-12-31 Back plate material and photovoltaic component adopting same

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102569454A (en) * 2010-12-31 2012-07-11 阿特斯(中国)投资有限公司 Backplane material, photovoltaic module using backplane material and manufacture method of photovoltaic module
CN105845766A (en) * 2016-05-23 2016-08-10 常州回天新材料有限公司 Strong-surface-energy solar cell panel back film
CN111952413A (en) * 2020-08-14 2020-11-17 上海晶澳太阳能科技有限公司 Manufacturing method of photovoltaic module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102569454A (en) * 2010-12-31 2012-07-11 阿特斯(中国)投资有限公司 Backplane material, photovoltaic module using backplane material and manufacture method of photovoltaic module
CN105845766A (en) * 2016-05-23 2016-08-10 常州回天新材料有限公司 Strong-surface-energy solar cell panel back film
CN111952413A (en) * 2020-08-14 2020-11-17 上海晶澳太阳能科技有限公司 Manufacturing method of photovoltaic module

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GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 215129 No. 199 deer Road, Suzhou hi tech Industrial Development Zone, Jiangsu, Suzhou

Co-patentee after: Changshu Canadian Solar Inc.

Patentee after: Artes sunshine Power Group Co. Ltd.

Address before: 215129 No. 199 deer Road, Suzhou hi tech Industrial Development Zone, Jiangsu, Suzhou

Co-patentee before: Changshu Canadian Solar Inc.

Patentee before: Canadian (China) Investment Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110803