CN202749401U - Photovoltaic module - Google Patents
Photovoltaic module Download PDFInfo
- Publication number
- CN202749401U CN202749401U CN 201220355262 CN201220355262U CN202749401U CN 202749401 U CN202749401 U CN 202749401U CN 201220355262 CN201220355262 CN 201220355262 CN 201220355262 U CN201220355262 U CN 201220355262U CN 202749401 U CN202749401 U CN 202749401U
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- CN
- China
- Prior art keywords
- solar battery
- battery sheet
- adhesive tape
- photovoltaic module
- welding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a photovoltaic module which comprises a laminated structure, wherein the laminated structure consists of toughened glass, a first transparent EVA (ethylene-vinyl acetate copolymer) layer, a solar cell string, a second transparent EVA layer and a back plate which are tightly compounded from top to bottom sequentially; a junction box is arranged on the back of the laminated structure; the solar cell string comprises a plurality of linearly arranged solar cells, a solder strip with tin-bismuth alloy on the surface, and a high-temperature positioning adhesive tape; and the high-temperature positioning adhesive tape can be used for fixing the solder strip with molten tin-bismuth alloy onto the solar cells, so that the plurality of solar cells are connected in series to form the solar cell string. The photovoltaic module has the advantages of reducing the possibility of solar cell breakage, improving the production efficiency of the module, and lowering the production cost of the module.
Description
Technical field
The utility model belongs to photovoltaic module (being called for short " assembly ") processing technique field, particularly a kind of photovoltaic module.
Background technology
Present photovoltaic module, the production order that adopts is monolithic solar cell sheet (being called for short " cell piece ") welding, cell piece series connection welding, to toughened glass, the first transparent EVA (ethylene-vinyl acetate copolymer, ethylene-vinyl acetate copolymer) layer, cell piece string, the second transparent EVA layer, back board structure carry out lamination, then carry out the installation of terminal box and aluminum alloy frame.Finish the making of photovoltaic module through above step.
The welding that uses in the welding process at present, the surface is leypewter, its fusing point is 180 ℃-190 ℃.For guaranteeing to produce fast the linear flow journey, its welding parameter is 350 ℃-380 ℃ of temperature, time 3-5 second.In this process, cell piece need stand the welding of high temperature and the process of being down to rapidly room temperature, the situation of fragment easily occurs.
The utility model content
The utility model purpose: for the problem and shortage that above-mentioned prior art exists, the purpose of this utility model provides a kind of photovoltaic module, reduces cell piece fragment probability, improves assembly production efficiency, reduces the assembly production cost.
Technical scheme: for realizing above-mentioned utility model purpose, the first technical scheme that the utility model adopts is a kind of photovoltaic module, comprise laminated construction, described laminated construction is from top to bottom successively by toughened glass, the first transparent EVA layer, the solar battery sheet string, the second transparent EVA layer and backboard closely are composited, the back side of described laminated construction is provided with terminal box, described solar battery sheet string comprises a plurality of linearly aligned solar battery sheets, the surface is welding and the high temperature locating adhesive tape of sn-bi alloy, described high temperature locating adhesive tape is fixed on the welding that sn-bi alloy has melted on the solar battery sheet, a plurality of solar battery sheets are together in series, form the solar battery sheet string.
Further, described solar battery sheet comprises main grid, and described high temperature locating adhesive tape is fixed on the welding that sn-bi alloy has melted on the main grid of solar battery sheet.
Further, described solar battery sheet does not have main grid, and the welding that described high temperature locating adhesive tape has melted sn-bi alloy is fixed on the main grid position of solar battery sheet, is used for compiling the electric current of secondary grid.
The second technical scheme that the utility model adopts is a kind of manufacture method of photovoltaic module, comprises the steps:
(1) provide a plurality of linearly aligned solar battery sheets, surface to be the welding of sn-bi alloy and high temperature locating adhesive tape;
(2) use the high temperature locating adhesive tape that the welding of surface as sn-bi alloy is fixed on the solar battery sheet, a plurality of solar battery sheets are together in series, form the solar battery sheet string;
(3) from top to bottom closely composite reinforced glass, the first transparent EVA layer, solar battery sheet string, the second transparent EVA layer and backboard form laminated construction;
(4) laminated construction is put into laminating machine and carried out lamination, the temperature setting of laminating machine is set to 140 to 160 ℃, and the lamination time is 10 to 30min;
(5) connection box set is contained in the back side of described laminated construction.
Further, described solar battery sheet comprises main grid, and described high temperature locating adhesive tape is that the welding of sn-bi alloy is fixed on the main grid of solar battery sheet with the surface.
Further, described solar battery sheet does not have main grid, and described high temperature locating adhesive tape is the main grid position that the welding of sn-bi alloy is fixed on solar battery sheet with the surface, is used for compiling the electric current of secondary grid.
Further, described sn-bi alloy fusing point be 120 to 130 ℃.
Beneficial effect: use conventional high-temperature soldering method, the technique of using low-melting alloy to carry out similar welding during lamination has reduced the fragment rate of battery and has reduced the assembly cost; In lamination process, the sn-bi alloy fusing forms close contact with cell piece, substitutes the welding process of monolithic battery and cell piece string, has saved the manufacturing time of assembly.
Description of drawings
Fig. 1 is the front schematic view of conventional batteries sheet;
Fig. 2 does not have main grid to only have the front schematic view of the cell piece of secondary grid;
Fig. 3 is the structural representation of photovoltaic module;
Fig. 4 (A) has the front schematic view of the cell piece assembly of main grid for the utility model, Fig. 4 (B) is that the utility model is without the front schematic view of the cell piece assembly of main grid;
Fig. 5 is schematic rear view of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
Embodiment 1:
The manufacture method of the present embodiment photovoltaic module comprises the steps:
1. prepare the conventional solar battery sheet of same power gear, as shown in Figure 1, comprise the main grid 8 of 2 vertical direction and the secondary grid 9 of many horizontal directions.
2. using the high temperature locating adhesive tape, is the surface that the welding of sn-bi alloy is fixed on the main grid of cell piece.
3. use the surface to be welding and the high temperature locating adhesive tape of sn-bi alloy, this adhesive tape is by PET material (the Polyethylene terephthalate of high temperature resistant (high temperature that ability is 180 ℃), the poly terephthalic acid class) adding silicon rubber glue synthesizes, a plurality of cell pieces are together in series, form the cell piece string.The fusing point of sn-bi alloy is between 120 ℃ to 130 ℃.
4. making laminated construction, as shown in Figure 3, comprise successively from top to bottom: toughened glass 1, the one EVA layer 2, cell piece string 3, the two EVA layers 4, backboard 5, and laminating machine put in laminated construction carry out lamination, the temperature setting of laminating machine is set between 140 °-160 °, and the lamination time is between the 10min-30min.
5. the assembly of lamination end carries out the installation of terminal box 7 and frame 6, finishes the assembling of novel photovoltaic module, such as Fig. 4 (A) and shown in Figure 5.
Embodiment 2:
The present embodiment is from the different of embodiment 1: the solar battery sheet of the present embodiment only has the secondary grid 9 of many horizontal directions, there is not main grid 8, shown in Fig. 4 (B), the benefit of bringing is: because the material of main grid is generally silver, and silver is expensive, account for 30% of total cost, therefore saving main grid can save 30% cost; The high temperature locating adhesive tape is the surface that the welding of sn-bi alloy is fixed on the main grid position of cell piece, is used for compiling the electric current of secondary grid.
Claims (3)
1. photovoltaic module, comprise laminated construction, described laminated construction is from top to bottom successively by toughened glass, the first transparent EVA layer, the solar battery sheet string, the second transparent EVA layer and backboard closely are composited, the back side of described laminated construction is provided with terminal box, described solar battery sheet string comprises a plurality of linearly aligned solar battery sheets, the surface is welding and the high temperature locating adhesive tape of sn-bi alloy, described high temperature locating adhesive tape is fixed on the welding that sn-bi alloy has melted on the solar battery sheet, a plurality of solar battery sheets are together in series, form the solar battery sheet string.
2. described photovoltaic module according to claim 1, it is characterized in that: described solar battery sheet comprises main grid, described high temperature locating adhesive tape is fixed on the welding that sn-bi alloy has melted on the main grid of solar battery sheet.
3. described photovoltaic module according to claim 1, it is characterized in that: described solar battery sheet does not have main grid, and the welding that described high temperature locating adhesive tape has melted sn-bi alloy is fixed on the main grid position of solar battery sheet, is used for compiling the electric current of secondary grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355262 CN202749401U (en) | 2012-07-20 | 2012-07-20 | Photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355262 CN202749401U (en) | 2012-07-20 | 2012-07-20 | Photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202749401U true CN202749401U (en) | 2013-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220355262 Expired - Fee Related CN202749401U (en) | 2012-07-20 | 2012-07-20 | Photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202749401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751360A (en) * | 2012-07-20 | 2012-10-24 | 合肥海润光伏科技有限公司 | Photovoltaic component and manufacture method thereof |
-
2012
- 2012-07-20 CN CN 201220355262 patent/CN202749401U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751360A (en) * | 2012-07-20 | 2012-10-24 | 合肥海润光伏科技有限公司 | Photovoltaic component and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20180720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |