CN114284393B - Solar cell module, preparation method thereof and solar device - Google Patents
Solar cell module, preparation method thereof and solar device Download PDFInfo
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- CN114284393B CN114284393B CN202210005949.5A CN202210005949A CN114284393B CN 114284393 B CN114284393 B CN 114284393B CN 202210005949 A CN202210005949 A CN 202210005949A CN 114284393 B CN114284393 B CN 114284393B
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a solar cell module, a preparation method thereof and a solar device, wherein the method comprises the following steps: printing a grid line on the battery piece; presetting N parting lines on the battery piece, wherein N is a positive integer greater than or equal to 1; embedding a preset circuit corresponding to the battery piece with the preset N dividing lines in a substrate in a hidden mode, wherein the output electrode of the preset circuit is consistent with the grid line; pasting the battery piece printed with the grid lines on a base material with a hidden and buried preset circuit; and cutting the battery piece printed with the grid lines into small battery pieces along N dividing lines to form the battery assembly. The invention has the beneficial effects that: can save loaded down with trivial details welding procedure, can be directly turn into battery pack with the battery piece fast, convenient and fast more, and can save material.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a preparation method and a device of a solar cell module.
Background
In a conventional method for manufacturing a solar cell module, cells are connected to each other by solder strips, such that one end of each solder strip is connected to a front electrode of a cell and the other end of each solder strip is connected to a back electrode of an adjacent cell, thereby forming a cell series array. However, the existing preparation method has very low efficiency, very complicated realization and much time waste in welding, and the traditional preparation method needs to cut a round battery piece into a square shape, so that a great amount of battery piece materials are wasted. Therefore, it is necessary to provide a method for manufacturing a solar cell module to solve the above problems.
Disclosure of Invention
The invention provides a solar cell module, a preparation method thereof and a solar device, and aims to solve the problems of low preparation efficiency, complex welding and material waste of the existing preparation method.
In a first aspect, a method for manufacturing a solar module is provided, including: printing a grid line on the battery piece; presetting N parting lines on the battery piece, wherein N is a positive integer greater than or equal to 1; embedding a preset circuit corresponding to the battery piece with the preset N dividing lines in the substrate, wherein the output electrode of the preset circuit is consistent with the grid line; pasting the battery piece with the N cutting lines on the base material with the hidden and embedded preset circuit; and cutting the battery piece into small battery pieces along the N cutting lines to form the battery assembly.
Preferably, after the battery piece is drawn with N dividing lines, each small battery piece is punched, the positive electrode of each small battery piece is led to the back surface of the small battery piece by a lead, the positive electrode and the negative electrode of each small battery piece are simultaneously positioned on the back surface of the small battery piece, and the positive electrode and the negative electrode are separated by an insulating material.
Preferably, the base material is provided with corresponding electrodes and 2 central electrodes at positions corresponding to the electrodes on the back surface of the small cell piece, and the 2 central electrodes are respectively used for finally converging the output of the positive electrode and the output of the negative electrode.
Preferably, the battery piece is cut into small battery pieces along N cutting lines, and the voltage V of each small battery piece 0 The following ranges are satisfied:
V x -a≤Z*V 0 ≤V x +a
wherein a represents a dynamic adjustment factor, and the range of a is more than or equal to 0.2mv and less than or equal to 0.5mv; v x Represents the voltage of the battery pack in the range of 4.5V ≦ V x ≤48v；
The value of Z is determined by:
if the cell piece is cut from the edge vertex to the opposite edge vertex, Z =2N.
Preferably, the battery piece is cut into small battery pieces along the N dividing lines by a laser method to form the battery assembly.
Preferably, the battery piece is cut into small battery pieces along N dividing lines, and the arc length of the outermost side of each cut small battery piece is smaller than 30mm.
In a second aspect, a solar module is provided, which is prepared by the method for preparing the solar module according to the first aspect.
In a third aspect, a solar energy device is provided, comprising the solar module of the second aspect.
The invention has the beneficial effects that:
according to the invention, a complex welding process can be omitted, and the battery piece can be directly and quickly converted into a battery assembly, so that the battery assembly is more convenient and quicker. In addition, the invention can save materials and effectively solve the problem of material waste caused by cutting a round battery piece into a square shape in the traditional preparation method. Through the buried preset circuit, the battery piece and the base material are organically combined together.
Drawings
Fig. 1 is a schematic diagram of a circular cell provided in example 1 of the present application;
fig. 2 is a schematic diagram of a circular battery piece printed with grid lines provided in example 1 of the present application;
fig. 3 is a schematic diagram of a circular cell sheet printed with grid lines and provided by the application example 1, wherein 3 separation lines are drawn;
fig. 4 is a schematic diagram of an electrode on the back side of a small cell sheet provided in example 1 of the present application;
fig. 5 is a schematic view of a substrate having a predetermined circuit embedded therein, provided in example 1 of the present application;
fig. 6 is a schematic view of a substrate to which a battery piece is attached according to example 1 of the present application;
fig. 7 is a schematic view of a battery module formed after laser cutting according to example 1 of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment of the invention provides a preparation method of a solar component, which is formed by
The method can comprise the following steps:
s1, printing a grid line on a battery piece;
preferably, the battery piece includes a round battery piece, a square battery piece, and the like, and as shown in fig. 1, the battery piece 101 is a round battery piece, fig. 2 shows a battery piece printed with grid lines, and 201 is a grid line.
If the arc length of the outermost arc of the cell is longer, the number of the main grids should be increased, so that the confluence is facilitated.
S2, presetting N dividing lines on the battery piece printed with the grid lines, wherein N is a positive integer greater than or equal to 1;
preferably, N =3, fig. 3 shows a circular battery piece printed with grid lines with 3 dividing lines drawn, and 301 is a dividing line of the circular battery piece.
Preferably, after the cell piece printed with the grid lines is drawn with N cutting lines, the small cell piece cut by each cutting line is punched, the positive electrode of the small cell piece is led to the back surface of the small cell piece by a lead, the positive electrode and the negative electrode of the small cell piece are simultaneously positioned on the back surface of the small cell piece, and the positive electrode and the negative electrode are separated by an insulating material. The side printed with the grid lines is the front side of the battery piece, and the opposite side of the front side is the back side. The dividing line does not actually cut the battery, but divides the battery into small battery pieces.
As shown in fig. 4, 401 indicates that the positive electrode and the negative electrode of the small cell are both on the back surface of the small cell, 402 indicates the positive electrode of one small cell, and 403 indicates the negative electrode of one small cell.
S3, burying a preset circuit corresponding to the battery piece with the preset N dividing lines in the substrate in a hidden mode, wherein the output electrode of the preset circuit is consistent with the grid line;
preferably, the substrate is provided with a corresponding electrode and 2 central electrodes at a position corresponding to the electrode on the back surface of the small cell piece, and the 2 central electrodes are respectively used for finally converging the output of the positive electrode and the negative electrode.
Preferably, the substrate may be a PCB board.
The advantages of the buried preset circuit are that: the battery piece and the substrate are effectively combined through a preset circuit.
As shown in fig. 5, 501 denotes a base material in which a predetermined circuit is buried, 502 denotes an electrode corresponding to a small cell, 503 denotes a connection line, and 503 and 504 denote center electrodes.
S4, attaching the battery piece with the preset N dividing lines to the base material with the hidden preset circuit according to the electrode corresponding to the preset circuit;
fig. 6 is a schematic view of the substrate to which the battery piece is attached. The battery piece is divided into small battery pieces by the dividing lines, and the electrodes of the small battery pieces correspond to the electrodes of the preset circuit one by one.
And S5, cutting the battery piece into small battery pieces along the N cutting lines to form the battery assembly. Preferably, the cutting is performed by a laser method.
As shown in fig. 7, 701 denotes a battery pack formed after laser cutting, and 702 denotes a laser dividing line.
Preferably, the grid line-printed battery piece is cut into small battery pieces along N dividing lines by adopting a laser method, and the voltage V of each small battery piece 0 The following ranges are satisfied:
V x -a≤Z*V 0 ≤V x +a
wherein a represents a dynamic adjustment factor, a is determined according to the actual circuit power supply requirement and the upper and lower limit voltage range of the internal chip, and can be dynamically adjusted, and the range is 0.2mv & lta & gt & ltb & gt & lt 0.5mv, preferably 0.2mv; v x Represents the voltage of the battery pack in the range of 4.5V ≦ V x 48V or less, preferably in the range of 4.5V or less x ≤20v，V x Due to the influence of the communication protocol of the output circuit chip, for example, QC3.0, PD and other protocols, vx is recommended as the maximum supporting voltage on the basis of facilitating the voltage increase and decrease of the circuit. Preferred voltages are 5V, 9V, 12V, 15V, 20V, with a recommended value of Vx =20V.
The value of Z is determined by:
and if the battery piece is cut from the edge vertex to the opposite edge vertex by the laser method, Z =2N. As shown in fig. 3, the dividing line is a connecting line from the vertex of the edge point to the vertex of the opposite edge point to cut the battery piece.
Preferably, the battery piece printed with the grid lines is cut into small battery pieces along N cutting lines by a laser method, and the arc length of the outermost side of each small battery piece is less than 30mm.
The beneficial effect of this embodiment does:
according to the invention, a complex welding process can be omitted, and the battery piece can be directly and quickly converted into the battery assembly, so that the battery assembly is more convenient and quicker. In addition, the invention can save materials and effectively solve the problem of material waste caused by cutting a round battery piece into a square shape in the traditional preparation method. Through the buried preset circuit, the battery piece and the base material are organically combined together.
Example 2
The embodiment provides a solar module prepared by the preparation method of the solar module in embodiment 1.
Example 3
The embodiment provides a solar device, which comprises the solar module in the embodiment 2.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A method of fabricating a solar cell module, the method comprising:
printing a grid line on the round battery piece;
presetting N parting lines on the circular battery piece, wherein N is a positive integer;
embedding a preset circuit corresponding to the round battery piece with N preset dividing lines in a substrate in a hidden manner, wherein the output electrode of the preset circuit is consistent with the grid line;
adhering the circular battery piece with the preset N dividing lines to the base material with the embedded preset circuit according to the electrode corresponding to the preset circuit;
cutting the round battery piece into small battery pieces along N cutting lines to form a battery assembly;
cutting the round battery piece into small battery pieces along N dividing lines, wherein the voltage V of each small battery piece 0 The following ranges are satisfied:
V x -a≤Z*V 0 ≤V x +a
wherein a represents a dynamic adjustment factor, and the range of a is more than or equal to 0.2mv and less than or equal to 0.5mv; v x Represents the voltage of the battery pack in the range of 4.5V ≦ V x ≤48v；
The value of Z is determined by:
z =2N when the N division lines are each connecting lines from edge vertex to opposite edge vertex.
2. The method of claim 1, wherein the circular cell is divided into N predetermined dividing lines, each of the small cells is perforated, and the positive electrode of each of the small cells is led to the back surface of the small cell by a lead, so that the positive electrode and the negative electrode of each of the small cells are simultaneously on the back surface of the small cell, and the positive electrode and the negative electrode are separated by an insulating material.
3. The method according to claim 2, wherein the substrate is provided with corresponding electrodes at positions corresponding to the electrodes on the back surface of the small cell piece divided by the dividing line, and 2 central electrodes, and the 2 central electrodes are respectively used for outputting of the finally collected positive electrode and negative electrode.
4. The method for manufacturing a solar cell module according to claim 1,
and cutting the round battery piece into small battery pieces along the N dividing lines by adopting a laser method to form the battery assembly.
5. The method for producing a solar cell module according to claim 1,
and cutting the round battery piece into small battery pieces along N cutting lines, wherein the arc length of the outermost side of each cut small battery piece is less than 30mm.
6. A solar module produced by the method for producing a solar cell module according to any one of claims 1 to 5.
7. A solar device comprising the solar module of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210005949.5A CN114284393B (en) | 2022-01-04 | 2022-01-04 | Solar cell module, preparation method thereof and solar device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210005949.5A CN114284393B (en) | 2022-01-04 | 2022-01-04 | Solar cell module, preparation method thereof and solar device |
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| CN114284393A CN114284393A (en) | 2022-04-05 |
| CN114284393B true CN114284393B (en) | 2022-10-28 |
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Citations (6)
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| CN106206758A (en) * | 2016-08-31 | 2016-12-07 | 九州方园新能源股份有限公司 | A kind of solar cell panel assembly and processing technique |
| CN106876503A (en) * | 2017-03-30 | 2017-06-20 | 乐叶光伏科技有限公司 | Using the solar energy stacked wafer moudle of center convergence gate line electrode |
| CN110783421A (en) * | 2019-11-06 | 2020-02-11 | 维科诚（苏州）光伏科技有限公司 | Solar cell and preparation method thereof |
| CN111477702A (en) * | 2020-05-21 | 2020-07-31 | 晶澳太阳能有限公司 | Back contact solar cell module and preparation method thereof |
| CN112838142A (en) * | 2020-12-22 | 2021-05-25 | 泰州隆基乐叶光伏科技有限公司 | Preparation method of solar cell module |
| WO2021232715A1 (en) * | 2020-05-21 | 2021-11-25 | 晶澳太阳能有限公司 | Back-contact solar cell module and preparation method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098819B (en) * | 2015-05-22 | 2017-08-29 | 苏州沃特维自动化系统有限公司 | Solar battery sheet, solar cell module, battery blade unit and preparation method thereof |
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2022
- 2022-01-04 CN CN202210005949.5A patent/CN114284393B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206758A (en) * | 2016-08-31 | 2016-12-07 | 九州方园新能源股份有限公司 | A kind of solar cell panel assembly and processing technique |
| CN106876503A (en) * | 2017-03-30 | 2017-06-20 | 乐叶光伏科技有限公司 | Using the solar energy stacked wafer moudle of center convergence gate line electrode |
| CN110783421A (en) * | 2019-11-06 | 2020-02-11 | 维科诚（苏州）光伏科技有限公司 | Solar cell and preparation method thereof |
| CN111477702A (en) * | 2020-05-21 | 2020-07-31 | 晶澳太阳能有限公司 | Back contact solar cell module and preparation method thereof |
| WO2021232715A1 (en) * | 2020-05-21 | 2021-11-25 | 晶澳太阳能有限公司 | Back-contact solar cell module and preparation method |
| CN112838142A (en) * | 2020-12-22 | 2021-05-25 | 泰州隆基乐叶光伏科技有限公司 | Preparation method of solar cell module |
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| CN114284393A (en) | 2022-04-05 |
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