CN218677165U - Photovoltaic module based on transparent conductive grid adhesive film - Google Patents
Photovoltaic module based on transparent conductive grid adhesive film Download PDFInfo
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- CN218677165U CN218677165U CN202222138720.7U CN202222138720U CN218677165U CN 218677165 U CN218677165 U CN 218677165U CN 202222138720 U CN202222138720 U CN 202222138720U CN 218677165 U CN218677165 U CN 218677165U
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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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Abstract
The utility model discloses a photovoltaic module based on transparent conductive grid glue film, which comprises an upper cover plate glass, a lower cover plate glass, an upper glue film, a lower glue film and a battery piece group; the cell group comprises a plurality of cells which are arranged in a row; an upper adhesive film is arranged on one side of the battery piece, and a lower adhesive film is arranged on the other side of the battery piece; one side of the upper adhesive film, which is not connected with the battery piece, is provided with upper cover plate glass, and the lower side of the lower adhesive film, which is not connected with the battery piece, is provided with lower cover plate glass. The connection between the cells is realized by arranging the TCO coating electrode and the cell lead-out electrode on the adhesive film on the upper side and the lower side of the cell, and meanwhile, the thin film diode is arranged in the overlapping area of the TCO coating electrode so as to protect a cell circuit. The technical scheme of the utility model can effectively improve photovoltaic module's reliability to with low costs, production is convenient, has very high spreading value.
Description
Technical Field
The utility model belongs to the photovoltaic power generation field, concretely relates to photovoltaic module based on transparent conductive grid glued membrane.
Background
With the rapid development of the solar photovoltaic market, the technology of the photovoltaic module also tends to mature, and the requirement on the reliability of the solar module is higher and higher.
However, the current solar photovoltaic cell module has the following defects:
on one hand, the solar photovoltaic cell module generally adopts an embedded metal gate line, and the connection between the cells in the cell group adopts metal wire on-line welding. The structure and the process are not only complex in structure and high in cost, but also weak in voltage and current bearing capacity. When causing the trouble because of sheltering from, hold the day and cause the battery piece to damage, and then influence whole subassembly.
On the other hand, when the solar photovoltaic cell module is partially shielded due to environmental factors, such as tree shadows, leaves, bird droppings, dirt and the like, the whole cell module is overheated to form hot spots, so that the performance and reliability of the cell panel are affected. The conventional solution at present is to connect three diodes in parallel on the external circuit of the battery assembly, so as to solve the problem of three columns of battery plates blocking influence. Too many external circuit diodes add significant cost and construction complexity to the assembly. However, too few diodes will cause the power generation of the whole row of cells to be unable to generate power normally due to some hot spot, which affects the power generation efficiency. Meanwhile, compared with the prior art, the cost and the construction complexity of the external diode cannot be increased, and the reliability of the battery pack cannot be further improved, so that the comprehensive cost is reduced.
Disclosure of Invention
In order to solve the technical defect in the prior art, the utility model provides a photovoltaic module based on transparent conductive grid glued membrane.
Realize the utility model discloses the technical solution of purpose does:
a photovoltaic module based on a transparent conductive grid adhesive film comprises an upper cover plate glass, a lower cover plate glass, an upper adhesive film, a lower adhesive film and a battery piece group;
the cell group comprises a plurality of cells which are arranged in a row and column manner;
an upper adhesive film is arranged on one side of the battery piece, and a lower adhesive film is arranged on the other side of the battery piece;
and one side of the upper adhesive film, which is not connected with the battery piece, is provided with upper cover plate glass, and the lower side of the lower adhesive film, which is not connected with the battery piece, is provided with lower cover plate glass.
As a better implementation mode, the solar cell further comprises a film-coated TCO coating electrode, a film-coated cell sheet leading-out electrode, a film-coated TCO coating electrode and a film-coated cell sheet leading-out electrode;
one side of the upper adhesive film, which is connected with the cell piece, is provided with an upper adhesive film TCO coating electrode, the edge position of the cell piece is provided with an upper adhesive film cell piece leading-out electrode, and the upper adhesive film TCO coating electrode is connected with the upper adhesive film cell piece leading-out electrode;
and a lower adhesive film TCO coating electrode is arranged on one side of the lower adhesive film connected with the battery piece, a lower adhesive film battery piece leading-out electrode is arranged at the edge position of the battery piece, and the lower adhesive film TCO coating electrode is connected with the lower adhesive film battery piece leading-out electrode.
As a preferred embodiment, insulation gaps are arranged between upper film TCO coating electrodes and between lower film TCO coating electrodes of adjacent cells
The leading-out electrode of the upper adhesive film battery piece is not connected with the upper adhesive film TCO coating electrode of the adjacent battery piece, and an insulation gap is formed between the leading-out electrode of the upper adhesive film battery piece and the adjacent battery piece;
and the lower film cell lead-out electrode is not connected with the lower film TCO coating electrode of the adjacent cell, and an insulation gap is formed between the lower film cell lead-out electrode and the adjacent cell.
In a preferred embodiment, the upper film cell lead-out electrode and the lower film cell lead-out electrode of the cell are overlapped at the gap between the adjacent cells to form a TCO coating electrode overlapping region;
and an insulating area formed by overlapping an upper adhesive film and a lower adhesive film of the cell is arranged around the TCO coating electrode overlapping area.
As a preferred embodiment, a film electrode on the film diode and a film electrode on the film diode are respectively arranged on the film electrode on the film diode and the film electrode on the film diode at the intersection area of every four adjacent battery pieces.
In a preferred embodiment, a thin film diode is disposed on the thin film diode upper glue film electrode.
In a preferred embodiment, a thin film diode is disposed on the thin film diode under-glue thin film electrode.
As a preferred embodiment, an assembly leading-out electrode a is disposed on the upper film TCO coated electrode of one and only one of the cell sheets, and an assembly leading-out electrode B is disposed on the lower film TCO coated electrode of one and only one of the cell sheets.
In a preferred embodiment, the extraction electrode a and the extraction electrode B are respectively disposed on two sides of the cell stack.
In a preferred embodiment, the number of the thin film diodes is greater than or equal to one.
Compared with the prior art, the utility model, it is showing the advantage and is:
(1) The technical proposal of the utility model is that the TCO coating is arranged on the adhesive film on the battery piece to replace the embedded metal grid line on the conventional battery piece, which not only improves the reliability, but also has low cost, simple process and convenient production;
(2) The technical scheme of the utility model utilizes the overlapping of TCO coating electrodes to increase the conductive capacity of the coating, thereby effectively reducing the problem of the performance and the safety reduction of the battery piece caused by local shielding;
(3) The technical scheme of the utility model set up a plurality of film diodes in the glued membrane of battery piece, replaced external diode, be showing the reliability that increases the group battery on the one hand, and reduced manufacturing cost, on the other hand, film diode and battery piece fusion degree, the laminating degree in the packaging process are all better.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic overall structure diagram of a preferred embodiment of the present invention.
Fig. 2 is a schematic diagram of a TCO film circuit according to a preferred embodiment of the present invention.
Fig. 3 is a circuit diagram of a circuit on one side of the upper adhesive film according to a preferred embodiment of the present invention.
Fig. 4 is a circuit diagram of one side of the lower adhesive film according to a preferred embodiment of the present invention.
Detailed Description
It is easily understood that, according to the technical solution of the present invention, a person having ordinary skill in the art can imagine various embodiments of the present invention without changing the essential spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative illustrations of the technical solutions of the present invention, and should not be construed as being all of the present invention or as limiting or restricting the technical solutions of the present invention. Rather, these embodiments are provided so that this disclosure will be thorough and complete. The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application and, together with the embodiments of the invention, serves to explain the innovative concepts of the invention.
Examples
With reference to fig. 1, a photovoltaic module based on a transparent conductive grid adhesive film comprises an upper cover plate glass 1, a lower cover plate glass 2, an upper adhesive film 3, a lower adhesive film 4, a cell group, a sealant 6 and a frame 7;
the cell group comprises a plurality of cells 5, and the cells are arranged in a row and column manner;
an upper adhesive film 3 is arranged on one side of the battery piece 5, and a lower adhesive film 4 is arranged on the other side of the battery piece;
one side of the upper adhesive film 3, which is not connected with the battery piece 5, is provided with an upper cover plate glass 1, and the lower side of the lower adhesive film 4, which is not connected with the battery piece 5, is provided with a lower cover plate glass 2.
The frame 7 surrounds the upper cover plate glass 1 and the lower cover plate glass 2 of the battery piece group, and a sealant 6 is arranged between the frame 7 and the battery piece group.
More specifically, with reference to fig. 2 to fig. 4, the device further includes an upper adhesive film TCO coating electrode 8, an upper adhesive film cell sheet extraction electrode 9, a lower adhesive film TCO coating electrode 10, and a lower adhesive film cell sheet extraction electrode 11;
an upper adhesive film TCO coating electrode 8 is arranged on one side, connected with the battery piece 5, of the upper adhesive film 3, an upper adhesive film battery piece leading-out electrode 9 is arranged at the edge of the battery piece 5 according to the circuit connection direction of the battery piece 5, and the upper adhesive film TCO coating electrode 8 is connected with the upper adhesive film battery piece leading-out electrode 9;
one side of the lower adhesive film 4 connected with the battery piece 5 is provided with a lower adhesive film TCO coating electrode 10, a lower adhesive film battery piece leading-out electrode 11 is arranged at the edge position of the battery piece according to the circuit connection direction of the battery piece, and the lower adhesive film TCO coating electrode 10 is connected with the lower adhesive film battery piece leading-out electrode 11.
Insulation gaps are arranged between upper adhesive film TCO coating electrodes and between lower adhesive film TCO coating electrodes of adjacent battery pieces, namely an upper adhesive film TCO coating electrode area and a lower adhesive film TCO coating electrode area of a single battery piece are limited in the battery piece area, and a certain gap is reserved at the periphery from the peripheral edge of the battery piece;
moreover, the upper film TCO coating electrode area and the lower film TCO coating electrode area of the single cell 5 do not occupy the entire single cell area, the corresponding adhesive film positions in the cell 5 area are uniformly provided with non-TCO coating blank areas 12, the blank areas may be regular pattern shapes (such as circles, triangles, quadrangles, etc.) or irregular pattern shapes, and the position proportion of the blank areas may be set to 10% -90%.
The single upper coating film cell lead-out electrode 9 is not connected with the upper coating film TCO coating electrode 8 of the adjacent cell, and an insulation gap is formed between the single upper coating film cell lead-out electrode and the adjacent cell 5;
the single lower film cell lead-out electrode 11 is not connected with the lower film TCO coating electrode 10 of the adjacent cell, and an insulation gap is formed between the single lower film cell lead-out electrode and the adjacent cell 5.
In addition, two upper coating film cell sheet leading-out electrodes 9 are arranged in the upper coating film TCO coating electrode areas of the cell sheets 5 on the two sides of the whole battery pack and are used for connecting the adjacent cell sheets 5 in rows and the adjacent cell sheets 5 in columns;
two lower film cell extraction electrodes 11 are arranged in the lower film TCO coating electrode areas of the cells 5 on two sides of the whole battery pack and are used for connecting the adjacent cells 5 in rows and the adjacent cells 5 in columns;
an upper adhesive film cell lead-out electrode 9 and a lower adhesive film cell lead-out electrode 11 of the cell are overlapped at the gap of adjacent cells to form a TCO coating electrode overlapping area 12, so that the connection of an upper adhesive film TCO coating electrode 8 and a lower adhesive film TCO coating electrode 10 is realized;
and an insulating area 13 formed by overlapping the upper adhesive film 3 and the lower adhesive film 4 of the cell is arranged around the overlapped area of the TCO coating electrode.
And an upper film electrode 14 and a lower film electrode 15 of the thin film diode are respectively arranged on the upper film 3 and the lower film 4 of every four adjacent cell plates 5 in the cross region, and the number of the thin film diodes is more than or equal to one.
The thin film diodes 16 are arranged on the thin film diode upper film-coated thin film electrode 14, or the thin film diodes 16 are arranged on the thin film diode lower film-coated thin film electrode 15, and the number of the thin film diodes 16 is more than or equal to one.
The connection of the upper film TCO coated electrode 8 and the lower film TCO coated electrode 10 is realized through the thin film diode 16.
In addition, an overlapping area is formed between the leading-out electrode 9 of the transversely adjacent upper film battery piece and the leading-out electrode 11 of the transversely adjacent lower film battery piece, so that the leading-out electrode 9 of the upper film battery piece is communicated with the leading-out electrode 11 of the lower film battery piece;
in addition, the upper film cell lead-out electrode 9 and the lower film cell lead-out electrode 11 which are longitudinally adjacent at two sides are overlapped, so that the upper film cell lead-out electrode 9 is communicated with the lower film cell lead-out electrode 11;
in addition, an assembly leading-out electrode A17 is arranged on the upper adhesive film TCO coating electrode 8 of only one of the cell pieces, an assembly leading-out electrode B18 is arranged on the lower adhesive film TCO coating electrode 10 of only one of the cell pieces, and the leading-out electrode A17 and the leading-out electrode B18 are respectively arranged on two sides of the cell pieces and are not overlapped.
The technical scheme of the utility model is that the TCO (transparent conductive coating) coating is arranged on the adhesive film to replace the grid on the cell piece, thereby improving the reliability of the photovoltaic module, and simultaneously having low cost, simple process and convenient production; meanwhile, the thin film diode is adopted to replace an external diode, so that the production cost can be further reduced, and the performance of the photovoltaic module is improved;
in addition, the electrode and the thin film diode are both generated in the production process of the TCO coating of the adhesive film, so that the production cost is low, the reliability is high, and the stability is good; and the battery piece has good fusion degree and adhesion degree with the battery piece in the packaging process of the battery piece, and good conductivity.
The foregoing embodiments illustrate and describe the basic principles and principal features of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed.
Claims (10)
1. A photovoltaic module based on a transparent conductive grid adhesive film is characterized by comprising an upper cover plate glass, a lower cover plate glass, an upper adhesive film, a lower adhesive film and a battery piece group;
the cell group comprises a plurality of cells which are arranged in a row;
an upper adhesive film is arranged on one side of the battery piece, and a lower adhesive film is arranged on the other side of the battery piece;
and one side of the upper adhesive film, which is not connected with the battery piece, is provided with upper cover plate glass, and the lower side of the lower adhesive film, which is not connected with the battery piece, is provided with lower cover plate glass.
2. The photovoltaic module based on the transparent conductive grid adhesive film according to claim 1, further comprising an upper adhesive film TCO coating electrode, an upper adhesive film cell sheet leading-out electrode, a lower adhesive film TCO coating electrode, a lower adhesive film cell sheet leading-out electrode;
one side of the upper adhesive film, which is connected with the cell piece, is provided with an upper adhesive film TCO coating electrode, the edge position of the cell piece is provided with an upper adhesive film cell piece leading-out electrode, and the upper adhesive film TCO coating electrode is connected with the upper adhesive film cell piece leading-out electrode;
and a lower adhesive film TCO coating electrode is arranged on one side of the lower adhesive film connected with the battery piece, a lower adhesive film battery piece leading-out electrode is arranged at the edge position of the battery piece, and the lower adhesive film TCO coating electrode is connected with the lower adhesive film battery piece leading-out electrode.
3. The transparent conductive grid adhesive film-based photovoltaic module as claimed in claim 2, wherein insulating gaps are provided between upper adhesive film TCO coated electrodes and between lower adhesive film TCO coated electrodes of adjacent cells;
the leading-out electrode of the upper adhesive film battery piece is not connected with the upper adhesive film TCO coating electrode of the adjacent battery piece, and an insulation gap is formed between the leading-out electrode of the upper adhesive film battery piece and the adjacent battery piece;
and the lower film cell lead-out electrode is not connected with the lower film TCO coating electrode of the adjacent cell, and an insulation gap is formed between the lower film cell lead-out electrode and the adjacent cell.
4. The photovoltaic module based on the transparent conductive grid adhesive film according to claim 2, wherein an upper adhesive film cell lead-out electrode and a lower adhesive film cell lead-out electrode of the cell are overlapped at a gap between adjacent cells to form a TCO coating electrode overlapping region;
and an insulating area formed by overlapping an upper adhesive film and a lower adhesive film of the cell is arranged around the TCO coating electrode overlapping area.
5. The transparent conductive grid adhesive film-based photovoltaic module as claimed in claim 2, wherein a film electrode on the thin film diode and a film electrode on the thin film diode are respectively disposed on the upper adhesive film and the lower adhesive film of every four crossing regions of the adjacent battery pieces.
6. The transparent conductive grid adhesive film-based photovoltaic module as claimed in claim 5, wherein a thin film diode is disposed on the thin film electrode on the thin film diode.
7. The transparent conductive grid adhesive film based photovoltaic module as claimed in claim 5, wherein the thin film diode is disposed on the thin film electrode under the thin film diode.
8. The photovoltaic module based on the transparent conductive grid adhesive film as claimed in claim 2, wherein a module lead-out electrode A is arranged on the TCO coating electrode on one and only one of the cell sheets; and the assembly leading-out electrode B is arranged on the lower adhesive film TCO coating electrode on one or only one of the cell groups.
9. The transparent conductive grid adhesive film-based photovoltaic module as claimed in claim 8, wherein the extraction electrode A and the extraction electrode B are respectively disposed on two sides of the cell group.
10. The transparent conductive grid adhesive film-based photovoltaic module according to claim 6 or 7, wherein the number of the thin film diodes is equal to or greater than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222138720.7U CN218677165U (en) | 2022-08-15 | 2022-08-15 | Photovoltaic module based on transparent conductive grid adhesive film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222138720.7U CN218677165U (en) | 2022-08-15 | 2022-08-15 | Photovoltaic module based on transparent conductive grid adhesive film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218677165U true CN218677165U (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222138720.7U Active CN218677165U (en) | 2022-08-15 | 2022-08-15 | Photovoltaic module based on transparent conductive grid adhesive film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218677165U (en) |
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2022
- 2022-08-15 CN CN202222138720.7U patent/CN218677165U/en active Active
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