CN114038944A - Photovoltaic cell series connection method - Google Patents
Photovoltaic cell series connection method Download PDFInfo
- Publication number
- CN114038944A CN114038944A CN202111411117.5A CN202111411117A CN114038944A CN 114038944 A CN114038944 A CN 114038944A CN 202111411117 A CN202111411117 A CN 202111411117A CN 114038944 A CN114038944 A CN 114038944A
- Authority
- CN
- China
- Prior art keywords
- battery
- pieces
- piece
- connecting piece
- layer
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000008569 process Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 claims 2
- 238000003466 welding Methods 0.000 abstract description 20
- 230000008439 repair process Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
-
- 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
- H01L31/0475—PV cell arrays made by cells in a planar, e.g. repetitive, configuration on a single semiconductor substrate; PV cell microarrays
-
- 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Energy (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a photovoltaic cell series connection method, wherein a lower connecting piece layer and an upper connecting piece layer are respectively paved on the surfaces of two sides of a cell layer to form a cell string. The invention can be connected with two types of battery pieces which are alternatively tiled in series, such as P-type battery pieces and N-type battery pieces which are alternatively tiled; the connecting piece and the battery piece are separated and untied, and all the connecting pieces and the batteries are independently and simultaneously grabbed and positioned, so that compared with the traditional welding, much time can be saved, and the productivity is improved; meanwhile, the carrying times and paths of the connecting piece and the battery piece are reduced, the alignment precision of the connecting piece and the battery piece is greatly improved, the welding yield of the assembly can be improved, and the repair is reduced.
Description
Technical Field
The invention relates to a photovoltaic cell series connection method.
Background
The crystalline silicon photovoltaic cell is manufactured into a photovoltaic module through series connection and lamination packaging, the welding and stringing of the cell is a main process, and the series connection of the cell directly influences the performance of the module and the production speed of the module.
In the traditional battery string and the photovoltaic module, only one type of photovoltaic battery piece is adopted, for example, only a P-type battery piece is tiled, or only an N-type battery piece is tiled, because the top surface electrodes of all the battery pieces are the same, the bottom surface electrodes of all the battery pieces are the same, and the top surface electrodes and the bottom surface electrodes of the same battery piece are opposite, the battery pieces are connected in series in the traditional battery string and the photovoltaic module, the top surface of one battery piece is connected with the bottom surface of the adjacent battery piece through a connecting piece (such as a welding strip).
With the development of photovoltaic technology, the types of solar cells are more and more, different types of cells are packaged in the same module, for example, P-type cells and N-type cells are alternately laid in the module, and since the top electrodes of the P-type cells are opposite to the top electrodes of the N-type cells and the bottom electrodes of the P-type cells are opposite to the bottom electrodes of the N-type cells, a series connection method suitable for the two types of cells needs to be designed.
Disclosure of Invention
The invention aims to provide a photovoltaic cell series connection method, wherein a lower connecting piece layer and an upper connecting piece layer are respectively paved on the surfaces of two sides of a cell layer to form a cell string;
the battery layer comprises a plurality of battery pieces which are tiled at intervals along the extending direction of the battery string, the top electrodes of two adjacent battery pieces are opposite, and the bottom electrodes of two adjacent battery pieces are opposite; taking a gap between two adjacent battery pieces as an inter-piece gap;
the lower connecting piece layer comprises lower connecting pieces which are tiled at intervals along the extending direction of the battery string; the lower connecting piece is used for bridging the bottom surfaces of two adjacent battery pieces, spans a gap between the two battery pieces and takes an inter-piece gap spanned by the lower connecting piece as a lower span gap;
the upper connecting piece layer comprises upper connecting pieces which are tiled at intervals along the extending direction of the battery string; the upper connecting piece is used for bridging the top surfaces of two adjacent battery pieces, spans a gap between the two battery pieces and takes an inter-piece gap spanned by the upper connecting piece as an upper span gap;
the gaps between the plates are respectively the lower span gaps or the upper span gaps, and the lower span gaps and the upper span gaps are alternately arranged along the extending direction of the battery string.
Preferably, the plurality of battery pieces are sequentially tiled along the left-right direction; counting the plurality of battery pieces from left to right in sequence, wherein each odd-numbered battery piece is a first type battery piece, and each even-numbered battery piece is a second type battery piece; the top surface electrodes of the first type battery piece and the second type battery piece are opposite, and the bottom surface electrodes of the first type battery piece and the second type battery piece are opposite; one of the first type battery piece and the second type battery piece is a P type battery piece, and the other one is an N type battery piece.
Preferably, the upper connecting piece and the lower connecting piece adopt welding wires or welding strips.
The specific steps of the photovoltaic cell tandem connection method of the present invention are shown in the examples.
The invention has the advantages and beneficial effects that:
a photovoltaic cell series connection method is provided, which can connect two types of cell slices which are alternatively tiled, such as P-type cell slices and N-type cell slices which are alternatively tiled.
A battery string made of P-type battery pieces and N-type battery pieces which are alternately tiled in series is used as a PN battery string, and a photovoltaic assembly made of the PN battery string is used as a PN assembly.
The PN battery string and the PN assembly can be connected in series at a high speed, the capacity of the PN battery string and the PN assembly is improved, the yield of the PN battery string and the PN assembly is improved, and the unit manufacturing cost is reduced.
In the traditional battery string and the photovoltaic module, the battery piece is connected in series, the top surface of one battery piece is connected with the bottom surface of the adjacent battery piece through a connecting piece, so that the connecting piece needs to be bent from the top surface of the battery piece to the bottom surface of the adjacent battery piece, and the connecting piece is contacted with the edge of the battery piece at the bent position to form larger stress.
In the PN battery string, the upper connecting piece and the lower connecting piece are not required to be connected to the bottom surfaces of the adjacent battery pieces from the top surfaces of the battery pieces, and the upper connecting piece and the lower connecting piece are connected straightly and are not required to be bent in the middle, so that no stress point exists, the development of assembly flaking is facilitated, two types of batteries in the PN battery string and the PN assembly can be connected in series through matching of size and area, and the PN battery string and the PN assembly provide an implementation method for battery flaking and size diversification.
The invention also has the following characteristics:
1. the PN battery string is regarded as a three-layer combined structure and comprises an upper connecting piece layer, a battery piece layer and a lower connecting piece layer which are mutually independent, on the basis, the PN battery string can independently fix and cut the upper connecting piece and the lower connecting piece respectively, and then the battery pieces are connected in series and are pre-connected in advance in a mode of placing the battery pieces on the connecting pieces or placing the connecting pieces on the battery pieces, and then welding is carried out; on the basis, various automatic action designs can be evolved.
2. After the PN battery string is decomposed into a three-layer structure, all the upper connecting pieces or the lower connecting pieces in one PN battery string or one PN assembly can be simultaneously used for feeding and positioning, and the battery pieces can be simultaneously positioned and grabbed by one string or one assembly no matter the battery pieces are grabbed and then cut or are synchronously cut during grabbing.
3. The upper connecting piece, the battery piece and the lower connecting piece are mutually independent, the preparation and the positioning processes of the connecting piece and the battery piece are not mutually influenced, the carrying and the positioning of the connecting piece and the battery piece can be independently finished by strings or even assemblies, for example, the whole PN battery string or even the connecting piece of the whole PN assembly is simultaneously placed and positioned, after the positioning of the connecting piece is finished, the battery pieces of the whole string or the whole assembly are simultaneously adsorbed and placed, and only the connecting piece is overlapped with the main grid of the battery piece, and the subsequent welding is smoothly finished.
4. The connecting piece and the battery piece are separated and untied, and all the connecting pieces and the batteries are independently and simultaneously grabbed and positioned, so that compared with the traditional welding, much time can be saved, and the productivity is improved; meanwhile, the carrying times and paths of the connecting piece and the battery piece are reduced, the alignment precision of the connecting piece and the battery piece is greatly improved, the welding yield of the assembly can be improved, and the repair is reduced.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention provides a photovoltaic cell series connection method, wherein a lower connecting piece layer and an upper connecting piece layer are respectively paved on the surfaces of two sides of a cell layer to form a cell string extending along the left and right directions;
the battery layer comprises a plurality of battery pieces which are tiled at intervals along the left-right direction, the plurality of battery pieces are counted from left to right in sequence, each odd-numbered battery piece is a first type battery piece, and each even-numbered battery piece is a second type battery piece; the top surface electrodes of the first type battery piece and the second type battery piece are opposite, and the bottom surface electrodes of the first type battery piece and the second type battery piece are opposite; one of the first type battery piece and the second type battery piece is a P-type battery piece, and the other one is an N-type battery piece; taking a gap between two adjacent battery pieces as an inter-piece gap;
the lower connecting piece layer comprises lower connecting pieces which are tiled at intervals along the left-right direction; the lower connecting piece can adopt welding wires or welding strips; the lower connecting piece is used for bridging the bottom surfaces of two adjacent battery pieces, spans a gap between the two battery pieces and takes an inter-piece gap spanned by the lower connecting piece as a lower span gap;
the upper connecting piece layer comprises upper connecting pieces which are tiled at intervals along the left-right direction; the upper connecting piece can adopt welding wires or welding strips; the upper connecting piece is used for bridging the top surfaces of two adjacent battery pieces, spans a gap between the two battery pieces and takes an inter-piece gap spanned by the upper connecting piece as an upper span gap;
the gaps between the plates are respectively the lower span gaps or the upper span gaps, and the lower span gaps and the upper span gaps are alternately arranged along the extending direction of the battery string.
The laying sequence of the lower connecting piece layer, the battery layer and the upper connecting piece layer is as follows:
1. the lower connecting piece layer can be firstly paved, then the battery layer is paved on the lower connecting piece layer, and then the upper connecting piece layer is paved on the battery layer; more specifically, regarding the welding of the lower connector layer, the upper connector layer and the battery layer: 1) the lower connecting piece layer and the battery layer can be welded together before the upper connecting piece layer is laid on the battery layer; after an upper connecting piece layer is laid on the battery layer, the upper connecting piece layer and the battery layer are welded together; 2) the lower connecting piece layer, the upper connecting piece layer and the battery layer can be welded together after the upper connecting piece layer is laid on the battery layer;
2. the lower connecting piece layer can be firstly paved, then the battery layer is paved on the lower connecting piece layer, the lower connecting piece layer and the battery layer are welded together, then the battery layer is lifted and turned over, the turned-over battery layer is paved on the upper connecting piece layer which is paved in advance, and the upper connecting piece layer and the battery layer are welded together.
In order to further improve the production efficiency, the method comprises the following steps: synchronously tiling the lower connecting piece layers of the battery strings in the whole photovoltaic module; synchronously tiling the battery layers of each battery string in the whole photovoltaic module; and the upper connecting piece layer of each battery string in the whole photovoltaic module is synchronously tiled.
Specifically, the lower connecting piece and the upper connecting piece can be small sections cut from long sections of the connecting pieces; the long section of the connecting piece can adopt welding wires or welding strips.
More specifically, the lower connector is cut out in relation to the connector length: 1) the long section of the connecting piece can be cut out of the lower connecting pieces which are arranged at intervals, then the lower connecting pieces which are arranged at intervals are integrally transferred, and the tiling action of all the lower connecting pieces is synchronously completed; 2) the long sections of the connecting pieces can be tiled along the left and right directions, and then the long sections of the connecting pieces are cut into lower connecting pieces which are arranged at intervals; 3) the method can also be carried out in the process of pulling the long section of the connecting piece: and cutting the long section of the connecting piece out of the lower connecting piece, and synchronously finishing the tiling and positioning of the lower connecting piece.
More specifically, the upper connector is cut out with respect to the connector long section: 1) the long section of the connecting piece can be cut out of the upper connecting pieces which are arranged at intervals, then the upper connecting pieces which are arranged at intervals are integrally transferred, and the tiling action of all the upper connecting pieces is synchronously completed; 2) the long sections of the connecting pieces can be tiled along the left and right directions, and then the long sections of the connecting pieces are cut into upper connecting pieces which are arranged at intervals; 3) the method can also be carried out in the process of pulling the long section of the connecting piece: and cutting the long section of the connecting piece out of the lower connecting piece, and synchronously finishing the tiling and positioning of the lower connecting piece.
In addition, with regard to the positioning of the connector long section, the lower connector or the upper connector: 1) the long section of the connecting piece, the lower connecting piece or the upper connecting piece can be clamped and positioned by the clamping jaw; 2) the long section of the connecting piece, the lower connecting piece or the upper connecting piece can be positioned in a rolling way of the roller.
The specific embodiment of the invention is as follows:
example 1
The invention provides a photovoltaic cell series connection method, which comprises the following steps:
A1) the lower connecting pieces are tiled at intervals along the left-right direction; a lower connecting piece between the leftmost lower connecting piece and the rightmost lower connecting piece is taken as a middle lower connecting piece;
A2) the first type battery pieces and the second type battery pieces are paved at intervals along the left and right directions, so that the first type battery pieces and the second type battery pieces are alternately arranged along the left and right directions; the top surface electrodes of the first type battery piece and the second type battery piece are opposite, and the bottom surface electrodes of the first type battery piece and the second type battery piece are opposite; flatly laying the leftmost battery piece on the leftmost lower connecting piece, and electrically connecting the bottom surface of the leftmost battery piece with the leftmost lower connecting piece; the rightmost battery piece is flatly laid on the rightmost lower connecting piece, and the bottom surface of the rightmost battery piece is electrically connected with the rightmost lower connecting piece; taking a battery piece between the leftmost battery piece and the rightmost battery piece as a middle battery piece; dividing all the middle battery pieces into a group from left to right; enabling the middle battery pieces of each group to correspond to the middle lower connecting pieces one by one, enabling the two middle battery pieces of the same group to be tiled on the corresponding middle lower connecting pieces, and enabling the middle lower connecting pieces to electrically connect the bottom surfaces of the two middle battery pieces;
A3) the upper connecting pieces are tiled at intervals along the left and right direction; dividing all the battery pieces into a group from left to right; enabling the upper connecting pieces to correspond to the battery pieces of each group one by one, enabling the upper connecting pieces to be tiled on the two battery pieces of the corresponding group, and enabling the upper connecting pieces to electrically connect the top surfaces of the two battery pieces;
taking the leftmost lower connecting piece as a left end lead of the battery string; and the rightmost lower connecting piece is used as a right end lead of the battery string.
More specifically:
the upper and lower connectors used in example 1 used welding wires or strips.
In the first type cell and the second type cell of example 1, one of them is a P-type cell and the other is an N-type cell.
Example 2
The invention provides another photovoltaic cell series connection method, which comprises the following steps:
B1) the lower connecting pieces are tiled at intervals along the left-right direction;
B2) the first type battery pieces and the second type battery pieces are paved at intervals along the left and right directions, so that the first type battery pieces and the second type battery pieces are alternately arranged along the left and right directions; the top surface electrodes of the first type battery piece and the second type battery piece are opposite, and the bottom surface electrodes of the first type battery piece and the second type battery piece are opposite; dividing all the battery pieces into a group from left to right; enabling each group of battery pieces to correspond to the lower connecting pieces one by one, enabling two battery pieces in the same group to be tiled on the corresponding lower connecting pieces, and enabling the lower connecting pieces to electrically connect the bottom surfaces of the two battery pieces;
B3) the upper connecting pieces are tiled at intervals along the left and right direction; flatly paving the leftmost upper connecting piece on the leftmost battery piece, and electrically connecting the leftmost upper connecting piece with the top surface of the leftmost battery piece; flatly paving the rightmost upper connecting piece on the rightmost battery piece, and electrically connecting the rightmost upper connecting piece with the top surface of the rightmost battery piece; an upper connecting piece between the leftmost upper connecting piece and the rightmost upper connecting piece is taken as a middle upper connecting piece; taking a battery piece between the leftmost battery piece and the rightmost battery piece as a middle battery piece; dividing all the middle battery pieces into a group from left to right; enabling the middle upper connecting pieces to correspond to the middle battery pieces of each group one by one, enabling the middle upper connecting pieces to be tiled on the two middle battery pieces of the corresponding group, and enabling the middle upper connecting pieces to electrically connect the top surfaces of the two middle battery pieces;
taking the leftmost upper connecting piece as a left end lead of the battery string; the rightmost upper connector is used as a right end lead of the battery string.
More specifically:
the upper and lower connectors used in example 2 used welding wires or welding strips.
In the first type cell and the second type cell of example 2, one of them is a P-type cell and the other is an N-type cell.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (15)
1. The photovoltaic cell serial connection method is characterized in that a lower connecting piece layer and an upper connecting piece layer are respectively paved on the surfaces of two sides of a cell layer to form a cell string;
the battery layer comprises a plurality of battery pieces which are tiled at intervals along the extending direction of the battery string, the top electrodes of two adjacent battery pieces are opposite, and the bottom electrodes of two adjacent battery pieces are opposite; taking a gap between two adjacent battery pieces as an inter-piece gap;
the lower connecting piece layer comprises lower connecting pieces which are tiled at intervals along the extending direction of the battery string; the lower connecting piece is used for bridging the bottom surfaces of two adjacent battery pieces, and the inter-piece gap spanned by the lower connecting piece is used as a lower span gap;
the upper connecting piece layer comprises upper connecting pieces which are tiled at intervals along the extending direction of the battery string; the upper connecting piece is used for bridging the top surfaces of two adjacent battery pieces, and the inter-piece gap spanned by the upper connecting piece is an upper span gap;
the gaps between the plates are respectively the lower span gaps or the upper span gaps, and the lower span gaps and the upper span gaps are alternately arranged along the extending direction of the battery string.
2. The method for photovoltaic cell tandem connection according to claim 1, wherein the plurality of cells are sequentially tiled in a left-right direction; counting the plurality of battery pieces from left to right in sequence, wherein each odd-numbered battery piece is a first type battery piece, and each even-numbered battery piece is a second type battery piece; the top surface electrodes of the first type battery piece and the second type battery piece are opposite, and the bottom surface electrodes of the first type battery piece and the second type battery piece are opposite.
3. The method of claim 2, wherein the first type cell and the second type cell are a P-type cell and the other is an N-type cell.
4. The method of claim 1, wherein the upper and lower connectors are made of solder wire or solder ribbon.
5. A method of photovoltaic cell series connection as claimed in claim 1, wherein the lower connector layer is laid flat, the cell layer is laid flat on the lower connector layer, and the upper connector layer is laid flat on the cell layer.
6. A method of photovoltaic cell series connection as claimed in claim 5, wherein the lower connector layer is welded to the cell layer before the upper connector layer is laid on the cell layer; after the upper connecting piece layer is laid on the battery layer, the upper connecting piece layer and the battery layer are welded together.
7. The method of claim 5, wherein the lower and upper connector layers are welded to the cell layer after the upper connector layer is laid on the cell layer.
8. A method of photovoltaic cell series connection as claimed in claim 1, wherein the lower connecting member layer is laid first, then the cell layer is laid on the lower connecting member layer and welded to the cell layer, then the cell layer is turned up and laid on the upper connecting member layer laid in advance, and the upper connecting member layer and the cell layer are welded to each other.
9. The method of claim 1, wherein the lower connector layers of each string of cells in the entire photovoltaic module are tiled simultaneously;
synchronously tiling the battery layers of each battery string in the whole photovoltaic module;
and the upper connecting piece layer of each battery string in the whole photovoltaic module is synchronously tiled.
10. The method of claim 1, wherein the lower and/or upper connectors are small segments cut from a long segment of a connector.
11. The method of claim 10, wherein the lower connecting members are spaced apart from each other along the long length of the connecting member, and the lower connecting members are integrally transferred to each other, thereby synchronously performing the tiling of all the lower connecting members;
or, the long sections of the connecting pieces are firstly tiled along the left-right direction, and then the long sections of the connecting pieces are cut into lower connecting pieces which are arranged at intervals;
or, the following steps are carried out in the process of pulling the long section of the connecting piece: and cutting the long section of the connecting piece out of the lower connecting piece, and synchronously finishing the tiling and positioning of the lower connecting piece.
12. The method of claim 10, wherein the upper connecting members are spaced apart from each other along the long length of the connecting member, and the upper connecting members are integrally transferred to each other, thereby synchronously performing the tiling of all the upper connecting members;
or, the long sections of the connecting pieces are firstly tiled along the left-right direction, and then the long sections of the connecting pieces are cut into upper connecting pieces which are arranged at intervals;
or, the following steps are carried out in the process of pulling the long section of the connecting piece: and cutting the long section of the connecting piece out of the lower connecting piece, and synchronously finishing the tiling and positioning of the lower connecting piece.
13. A method of photovoltaic cell stringing as claimed in claim 10, characterized in that the connecting element long section, the lower connecting element or the upper connecting element is gripped and positioned by means of clamping jaws;
or positioning the long section of the connecting piece, the lower connecting piece or the upper connecting piece in a roller rolling mode.
14. A method of photovoltaic cell cascading according to claim 3, comprising the steps of:
A1) the lower connecting pieces are tiled at intervals along the left-right direction; a lower connecting piece between the leftmost lower connecting piece and the rightmost lower connecting piece is taken as a middle lower connecting piece;
A2) the first type battery pieces and the second type battery pieces are paved at intervals along the left and right directions, so that the first type battery pieces and the second type battery pieces are alternately arranged along the left and right directions; the leftmost battery piece is flatly laid on the leftmost lower connecting piece; the rightmost battery plate is flatly laid on the rightmost lower connecting piece; taking a battery piece between the leftmost battery piece and the rightmost battery piece as a middle battery piece; dividing all the middle battery pieces into a group from left to right; enabling the middle battery pieces of each group to correspond to the middle lower connecting pieces one by one, and enabling the two middle battery pieces of the same group to be tiled on the corresponding middle lower connecting pieces;
A3) the upper connecting pieces are tiled at intervals along the left and right direction; dividing all the battery pieces into a group from left to right; the upper connecting pieces are in one-to-one correspondence with the battery pieces of each group, and the upper connecting pieces are tiled on the two battery pieces of the corresponding group.
15. A method of photovoltaic cell cascading according to claim 3, comprising the steps of:
B1) the lower connecting pieces are tiled at intervals along the left-right direction;
B2) the first type battery pieces and the second type battery pieces are paved at intervals along the left and right directions, so that the first type battery pieces and the second type battery pieces are alternately arranged along the left and right directions; dividing all the battery pieces into a group from left to right; enabling each group of battery pieces to correspond to the lower connecting pieces one by one, and enabling two battery pieces in the same group to be tiled on the corresponding lower connecting pieces;
B3) the upper connecting pieces are tiled at intervals along the left and right direction; flatly paving the leftmost upper connecting piece on the leftmost battery piece; flatly paving the rightmost upper connecting piece on the rightmost battery piece; an upper connecting piece between the leftmost upper connecting piece and the rightmost upper connecting piece is taken as a middle upper connecting piece; taking a battery piece between the leftmost battery piece and the rightmost battery piece as a middle battery piece; dividing all the middle battery pieces into a group from left to right; the middle upper connecting pieces are in one-to-one correspondence with the middle battery pieces of each group, and the middle upper connecting pieces are flatly laid on the two middle battery pieces of the corresponding group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111411117.5A CN114038944B (en) | 2021-11-25 | 2021-11-25 | Photovoltaic cell tandem connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111411117.5A CN114038944B (en) | 2021-11-25 | 2021-11-25 | Photovoltaic cell tandem connection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114038944A true CN114038944A (en) | 2022-02-11 |
| CN114038944B CN114038944B (en) | 2023-12-15 |
Family
ID=80138743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111411117.5A Active CN114038944B (en) | 2021-11-25 | 2021-11-25 | Photovoltaic cell tandem connection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114038944B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110303260A1 (en) * | 2010-06-10 | 2011-12-15 | Yun-Seok Lee | Solar cell module and method of manufacturing the same |
| CN103490719A (en) * | 2013-09-28 | 2014-01-01 | 英利能源（中国）有限公司 | Novel photovoltaic module and manufacturing method thereof |
| CN110718600A (en) * | 2019-10-28 | 2020-01-21 | 通威太阳能（合肥）有限公司 | Heterojunction battery and subassembly packaging structure thereof |
| IT201800009389A1 (en) * | 2018-10-12 | 2020-04-12 | Vismunda Srl | "ASSEMBLY METHOD AND BIVALENT COMBINED STATION, FOR PHOTOVOLTAIC PANELS" |
| CN111081813A (en) * | 2019-11-26 | 2020-04-28 | 泰州隆基乐叶光伏科技有限公司 | Solar cell module production method and solar cell module |
| CN212967724U (en) * | 2020-07-22 | 2021-04-13 | 常州亚玛顿股份有限公司 | Battery module and double-sided power generation photovoltaic module with same |
| CN112670376A (en) * | 2021-03-16 | 2021-04-16 | 常州时创能源股份有限公司 | Connection method of solar cell |
| CN113097338A (en) * | 2021-03-03 | 2021-07-09 | 无锡先导智能装备股份有限公司 | Battery string preparation method and equipment |
-
2021
- 2021-11-25 CN CN202111411117.5A patent/CN114038944B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110303260A1 (en) * | 2010-06-10 | 2011-12-15 | Yun-Seok Lee | Solar cell module and method of manufacturing the same |
| CN103490719A (en) * | 2013-09-28 | 2014-01-01 | 英利能源（中国）有限公司 | Novel photovoltaic module and manufacturing method thereof |
| IT201800009389A1 (en) * | 2018-10-12 | 2020-04-12 | Vismunda Srl | "ASSEMBLY METHOD AND BIVALENT COMBINED STATION, FOR PHOTOVOLTAIC PANELS" |
| CN110718600A (en) * | 2019-10-28 | 2020-01-21 | 通威太阳能（合肥）有限公司 | Heterojunction battery and subassembly packaging structure thereof |
| CN111081813A (en) * | 2019-11-26 | 2020-04-28 | 泰州隆基乐叶光伏科技有限公司 | Solar cell module production method and solar cell module |
| CN212967724U (en) * | 2020-07-22 | 2021-04-13 | 常州亚玛顿股份有限公司 | Battery module and double-sided power generation photovoltaic module with same |
| CN113097338A (en) * | 2021-03-03 | 2021-07-09 | 无锡先导智能装备股份有限公司 | Battery string preparation method and equipment |
| CN112670376A (en) * | 2021-03-16 | 2021-04-16 | 常州时创能源股份有限公司 | Connection method of solar cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114038944B (en) | 2023-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180122975A1 (en) | Preparation method for solar cell piece unit and solar cell module | |
| CN102625950B (en) | Be pre-assembled in the manufacture method of the thin crystal solar cell on panel | |
| TWI474491B (en) | Photovoltaic module, method and device for electrically connecting a plurality of photovoltaic cells | |
| CN108172648B (en) | Solar cell module and preparation process thereof | |
| CN106206763A (en) | Solar battery cell, cell piece array, battery component and preparation method thereof | |
| WO2019214627A1 (en) | Solar cell string, string group, assembly, and manufacturing method thereof | |
| CN104272475A (en) | Cell and module processing of semiconductor wafers for back-contacted solar photovoltaic module | |
| WO2017030695A1 (en) | Solar panel | |
| CN113257935B (en) | Series connection assembly for photovoltaic cell layer and preparation method and application thereof | |
| CN108054228A (en) | A kind of solar cell module and its manufacturing method | |
| CN111133591A (en) | Busbar-free shingled array solar cells and method for producing a solar module | |
| EP2752889B1 (en) | Method for producing solar cell module | |
| WO2017106100A1 (en) | High-efficiency low-cost solar panel with protection circuitry | |
| CN111564522B (en) | Preparation method of photovoltaic module combining P-type solar cell and N-type solar cell | |
| KR101995206B1 (en) | Method and device for producing solar cell strings | |
| TWI661572B (en) | Solar module and the manufacture thereof | |
| WO2012122944A1 (en) | Solar battery assembly and preparation method thereof | |
| CN114038944B (en) | Photovoltaic cell tandem connection method | |
| US20140305504A1 (en) | Solar cell | |
| CN102610688A (en) | Tool for encapsulating and arranging string of solar cell component | |
| CN114171638B (en) | Series connection method of photovoltaic double-sided batteries | |
| CN116504875A (en) | Photovoltaic module preparation method and photovoltaic module | |
| CN209785947U (en) | MWT solar cell, cell string and cell module | |
| WO2022237313A1 (en) | Solar photovoltaic module | |
| CN109841699A (en) | Back contact solar cell group string and preparation method thereof, component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |