CN110993713A - Bendable battery photovoltaic module packaging structure - Google Patents
Bendable battery photovoltaic module packaging structure Download PDFInfo
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- CN110993713A CN110993713A CN201911390500.XA CN201911390500A CN110993713A CN 110993713 A CN110993713 A CN 110993713A CN 201911390500 A CN201911390500 A CN 201911390500A CN 110993713 A CN110993713 A CN 110993713A
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- Prior art keywords
- battery
- photovoltaic module
- flexible
- packaging structure
- module packaging
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000005022 packaging material Substances 0.000 claims abstract description 12
- 238000005253 cladding Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000003292 glue Substances 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 14
- 239000000835 fiber Substances 0.000 description 14
- 239000000126 substance Substances 0.000 description 14
- 239000002313 adhesive film Substances 0.000 description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 description 10
- 239000005020 polyethylene terephthalate Substances 0.000 description 10
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910021419 crystalline silicon Inorganic materials 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/20—Collapsible or foldable PV 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
Abstract
The invention discloses a bendable battery photovoltaic module packaging structure, which comprises: the battery pack comprises batteries, flexible plates, pack internal materials, hard plates and joints, wherein the pack internal materials are positioned on one side or two sides of the batteries, the flexible plates wrap the batteries and the pack internal materials together, the joints are arranged between adjacent batteries, the hard plates are wrapped in the flexible plates or positioned on the outer surfaces of the flexible plates, and the batteries and the pack internal materials are protected by using the flexible plates; the packaging material laid on the flexible board is a glue film layer, so that the adhesive effect is achieved, all layers of materials are bonded together, the flexible material is used for enabling the solar cell connection part to achieve the bending effect, and meanwhile, the solar cell can be protected by bending in the three-dimensional direction so as to be suitable for different scene requirements.
Description
Technical Field
The invention relates to the field of photovoltaic power generation, in particular to a bendable battery photovoltaic module packaging structure.
Background
The solar cell module consists of a high-efficiency single crystal/polycrystalline solar cell, low-iron super white suede toughened glass, a packaging material, a functional back plate, an interconnection bar, a bus bar, a junction box and an aluminum alloy frame. The service life can reach 15-25 years. The single solar cell cannot be directly used as a power supply. The power supply must be composed of several single batteries connected in series, parallel and tightly packed. The solar energy electric single crystal solar cell module is also called solar cell panel and photovoltaic module, is the core part of the solar energy power generation system, and is the most important part of the solar energy power generation system. The solar energy is converted into electric energy, or the electric energy is sent to a storage battery for storage, or a load is pushed to work. The quality and cost of the solar module will directly determine the quality and cost of the overall system.
The crystalline silicon module has the advantages of high efficiency and low price, but because the silicon wafer belongs to a rigid material which is hard and easy to crack, the general photovoltaic module needs to be protected by the rigid material. Due to the existence of rigid materials, the existing photovoltaic modules can only be made into a plane whole and cannot be bent, even if some flexible crystalline silicon photovoltaic modules are developed by some companies at present, the modules can only be bent once and cannot be repeatedly bent, the bending degree is limited, and only two-dimensional bending can be performed.
There are some patents describing foldable crystalline silicon photovoltaic modules, such as patent CN109768107A, which discloses a foldable photovoltaic module, wherein a bending gap is provided between the cells to make the module perform a certain bending property. In addition, as in patent CN 208874521U, different photovoltaic units are used, and the rotating member is set among the different photovoltaic units to achieve the purpose of bending. In the CN109768107A patent, with present flexible assembly not have essential difference, do not solve the problem that photovoltaic module can not buckle repeatedly and protect the battery piece, and among the CN 208874521U, photovoltaic module buckles through rotating the piece, need install the accessory additional after photovoltaic module accomplishes, the complex operation and flexibility ratio are not high, do not solve the problem that photovoltaic module can not buckle in the three-dimensional direction moreover. In addition, most photovoltaic cells need to be connected by using solder strips, and the solder strips are easy to break during the bending process of the assembly.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the defects of the prior art, the invention provides a bendable battery photovoltaic module packaging structure, which uses a flexible material to enable the joint of a solar battery to achieve the bending effect, and can bend in the three-dimensional direction to adapt to different scene requirements to protect the solar battery.
The technical scheme is as follows: in order to achieve the above object, the present invention provides a foldable photovoltaic module package structure, which comprises: battery, flexible board, subassembly internal material, hardboard and junction, subassembly internal material be located one side or both sides of battery, the flexible board with battery and subassembly internal material cladding together, be equipped with the junction between the adjacent battery, the hardboard by the cladding in the flexible board or be located the surface of flexible board.
As a further preferable aspect of the present invention, the battery having a hard sheet on a surface thereof and the module internal material are covered with the flexible sheet by a sealing material. The battery and the internal materials of the assembly are protected by using the flexible plate; the packaging material is an adhesive film layer, plays a role in bonding and bonds all layers of materials together; the conducting layer provides electrical connection for the battery piece, and series connection and parallel connection can be carried out according to different requirements.
In a further preferred embodiment of the present invention, the flexible board is provided with a hard sheet on the upper surface or the lower surface or both of the upper and lower surfaces.
As a further preferred aspect of the present invention, the hard sheet is fixed to an outer surface of the flexible sheet by a packaging material, and an inner surface of the flexible sheet covers the battery and the module internal material.
As a further preferred aspect of the present invention, the coating is to confine the internal material of the module to the other surface of the battery by means of a potting material or a stopper.
As a further preferred of the present invention, the material inside the component is an insulating layer or an insulating layer and a conductive layer which are close together.
As a further preferred aspect of the present invention, when the positive electrode and the negative electrode of the battery are located on the same side, the insulating layer is provided with a through hole or a groove having a curved surface or a flat surface or a combination thereof, and by providing the through hole or the groove, the battery can be contacted with the conductive layer as required, and the battery can be prevented from forming a short circuit.
In a further preferred embodiment of the present invention, the through holes or the grooves are outlets for leading positive and negative electrodes of the battery, the positive and negative lead wires of the battery are led out from the two through holes or the grooves, respectively, and then the electrodes of the battery are connected to the conductive layer for leading out the electrodes.
As a further preferred aspect of the present invention, the module interior material is located opposite to the battery having a hard plate on the surface thereof.
In a further preferred embodiment of the present invention, a hard sheet is provided on the upper surface, the lower surface, or both the upper and lower surfaces of the battery.
As a further preference of the present invention, the number of cells fixed on the flexible board is at least 2.
As a further preferred aspect of the present invention, a joint is provided between adjacent batteries.
As a further preferred aspect of the present invention, the joint is a portion where the two flexible boards are adhered together by a sealing material.
As a further preference of the invention, the distance between the connection for bending the cell, so that the photovoltaic module can be bent in three dimensions, and the cell is more than 1 mm.
As a further preferred aspect of the present invention, the joint is a portion where the two flexible boards are adhered together by a sealing material.
As a further preferred of the present invention, the flexible material of the front plate includes, but is not limited to, transparent PET, transparent ETFE, polymer materials such as nylon, chemical fiber cloth, and film; the hard board includes but is not limited to a PET material, an acrylic material, a glass fiber reinforced material and the like; the insulating layer includes, but is not limited to, materials having insulating properties such as a PET-based polymer material, a mask plate, and a PA-based polymer material.
Has the advantages that: compared with the prior art, the bendable battery photovoltaic module packaging structure has the following advantages:
1. the battery piece is protected by using a hard material, so that the battery piece is not damaged;
2. flexible materials are used at the connection positions of the battery pieces, so that the relative bending among the battery piece assemblies can be ensured;
3. different degrees of bending are realized by setting different cell pitches, so that the flexibility is stronger;
4. be equipped with the junction between adjacent battery, can guarantee that photovoltaic module carries out three-dimensional direction's buckling, photovoltaic module's use occasion is more extensive.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic structural view of the present invention after assembly;
fig. 4 is a schematic view of the internal structure of another embodiment.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
As shown in fig. 1, the invention provides a foldable photovoltaic module package structure of a battery, comprising: the battery comprises a flexible board 1, a battery 2 with a hard board 6 on the surface, a packaging material 3, an insulating layer 4 and a conducting layer 5.
Example 1
Step one, laying transparent ETFE serving as a flexible board 1 on a plane, and then laying the transparent ETFE on all hard boards 6 by using an adhesive film layer as a packaging material 3, wherein the hard boards 6 are made of PET (polyethylene terephthalate) materials;
secondly, adhering the PET material on the surface on which the adhesive film layer is laid on the transparent ETFE serving as the flexible board 1 according to a preset position;
placing the batteries 2 above all the PET materials, respectively laying adhesive films on the transparent ETFE in four directions of 10mm outwards from the edges of the batteries 2 to serve as connecting parts 7, wherein the shape formed by the connecting parts 7 is the same as that of the batteries 2;
placing an insulating layer 4 and a conducting layer 5 above the battery 2 in sequence, wherein the insulating layer 4 and the conducting layer 5 are opposite to the battery 2, the insulating layer 4 is made of PET plastic, the conducting layer 5 is made of a copper plate, when the anode and the cathode of the battery 2 are positioned on the same side, through holes with curved surfaces are formed in the PET plastic, the anode lead wire and the cathode lead wire of the battery are respectively led out from the two through holes, then the electrode of the battery 2 is connected to the conducting layer 5, and the conducting layer 5 is used for leading out the electrode of the battery, so that the battery 2 can be contacted with the conducting layer 5 as required, and the short circuit of the battery 2 can be prevented;
fifthly, laying an adhesive film layer on the upper surface of the copper plate overlapped above the PET plastic;
and step six, covering a layer of transparent ETFE on the adhesive film layer to serve as the flexible plate 1, and adhering two layers of transparent ETFE together through a connecting part 7, as shown in fig. 2 and 3.
EXAMPLE 2
Firstly, laying chemical fiber cloth serving as a flexible board 1 on a plane, and then laying the chemical fiber cloth serving as a packaging material 3 on all hard boards 6, wherein the hard boards 6 are made of glass;
step two, adhering the glass on the side where the adhesive film layer is laid on the chemical fiber cloth serving as the flexible board 1 according to a preset position;
placing the batteries 2 above all the glass, respectively laying adhesive films on the chemical fiber cloth as connecting parts 7 in four directions of 5mm outward from the edges of the batteries 2, wherein the shape formed by the connecting parts 7 is the same as that of the batteries 2;
placing glass serving as a hard board 6 on the upper surface of the battery 2, placing an insulating layer 4 above the battery 2 correspondingly, wherein the position of the insulating layer 4 is opposite to that of the battery 2, and the insulating layer 4 is made of a mask;
and step five, taking the chemical fiber cloth as the flexible plate 1, and sticking the two layers of the chemical fiber cloth together through a joint 7, as shown in fig. 2 and 3.
EXAMPLE 3
Firstly, laying an adhesive film layer serving as a packaging material 3 on all hard plates 6, and then adhering the hard plates 6 to chemical fiber cloth serving as a flexible plate 1 according to a preset position, wherein the hard plates are made of an acrylic material;
turning the chemical fiber cloth laid with the acrylic material by 180 degrees and then horizontally placing the chemical fiber cloth;
placing a battery 2 above the chemical fiber cloth, wherein the position of the battery 2 corresponds to the position of all acrylic materials, adhesive films are respectively laid on the chemical fiber cloth as connecting parts 7 in four directions of 5mm outwards from the edge of the battery 2, and the shape formed by the connecting parts 7 is the same as that of the battery 2;
fourthly, placing an insulating layer 4 above the corresponding battery 2, wherein the position of the insulating layer 4 is opposite to that of the battery 2, and the material of the insulating layer 4 is a mask;
and step five, taking the chemical fiber cloth as the flexible plate 1, and sticking the two layers of the chemical fiber cloth together through a joint 7, as shown in fig. 4.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A foldable cell photovoltaic module package structure, comprising: a battery (2), characterized in that: it still includes: flexible board (1), subassembly internal material, hardboard (6) and junction (7), subassembly internal material be located one side or both sides of battery (2), battery (2) and subassembly internal material cladding are in the same place in flexible board (1), are equipped with junction (7) between adjacent battery (2), hardboard (6) by the cladding in flexible board (1) or be located the surface of flexible board (1).
2. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the flexible plate (1) is used for coating the battery (2) with the hard plate (6) on the surface and the materials in the assembly together through the packaging materials (3).
3. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the upper surface or the lower surface or the upper and lower surfaces of the battery (2) are provided with hard plates (6).
4. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the hard board (6) is fixed on the outer surface of the flexible board (1) through the packaging material (3), and the inner surface of the flexible board (1) wraps the battery (2) and the materials in the assembly together.
5. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the upper surface or the lower surface or the upper and lower surfaces of the flexible plate (1) are provided with hard plates (6).
6. The bendable battery photovoltaic module packaging structure according to claim 2 or 4, wherein: the coating is to limit the internal material of the component on the other surface of the battery through a packaging material (3) or a limiting mode.
7. The bendable battery photovoltaic module packaging structure according to claim 2 or 4, wherein: the internal materials of the assembly are an insulating layer (4) or an insulating layer (4) and a conducting layer (5) which are close together.
8. The foldable battery photovoltaic module packaging structure of claim 7, wherein: when the positive and negative electrodes of the battery (2) are positioned on the same side, the insulating layer (4) is provided with a through hole or a groove with a curved surface or a plane or a combination of the curved surface and the plane.
9. The bendable battery photovoltaic module packaging structure according to claim 2 or 4, wherein: the positions of the internal material of the assembly, the hard board (6) and the battery (2) are opposite.
10. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the connecting part (7) is a part for bonding the two layers of flexible boards (1) together through the packaging material (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390500.XA CN110993713A (en) | 2019-12-30 | 2019-12-30 | Bendable battery photovoltaic module packaging structure |
| PCT/CN2020/086079 WO2021134983A1 (en) | 2019-12-30 | 2020-04-22 | Bendable package structure for photovoltaic cell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390500.XA CN110993713A (en) | 2019-12-30 | 2019-12-30 | Bendable battery photovoltaic module packaging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110993713A true CN110993713A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911390500.XA Pending CN110993713A (en) | 2019-12-30 | 2019-12-30 | Bendable battery photovoltaic module packaging structure |
Country Status (2)
| Country | Link |
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| CN (1) | CN110993713A (en) |
| WO (1) | WO2021134983A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134983A1 (en) * | 2019-12-30 | 2021-07-08 | 南京汇能新能源科技有限责任公司 | Bendable package structure for photovoltaic cell assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478011A (en) * | 2008-12-23 | 2009-07-08 | 中电电气（南京）太阳能研究院有限公司 | Flexible solar cell component and preparation thereof |
| NL2003936C2 (en) * | 2009-12-10 | 2011-06-14 | Eurotron B V | METHOD AND DEVICE FOR MANUFACTURING SOLAR PANEL USING A CARRIER |
| CN102945873B (en) * | 2012-11-19 | 2015-06-03 | 深圳市创益科技发展有限公司 | Multi-dimensional folded flexible solar battery pack and manufacturing method thereof |
| CN103441169B (en) * | 2013-08-22 | 2016-12-07 | 绍兴合田新能源有限公司 | A kind of flexible crystal silicon solar energy battery plate |
| AT517505B1 (en) * | 2015-07-20 | 2018-12-15 | Sfl Tech Gmbh | Process for producing a composite and composite produced therewith |
| CN208478354U (en) * | 2018-08-13 | 2019-02-05 | 绍兴合田新能源有限公司 | A kind of foldable photovoltaic module of novel encapsulated |
| CN110993713A (en) * | 2019-12-30 | 2020-04-10 | 南京汇能新能源科技有限责任公司 | Bendable battery photovoltaic module packaging structure |
-
2019
- 2019-12-30 CN CN201911390500.XA patent/CN110993713A/en active Pending
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2020
- 2020-04-22 WO PCT/CN2020/086079 patent/WO2021134983A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134983A1 (en) * | 2019-12-30 | 2021-07-08 | 南京汇能新能源科技有限责任公司 | Bendable package structure for photovoltaic cell assembly |
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| WO2021134983A1 (en) | 2021-07-08 |
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