CN108574025B - Method for manufacturing laminated tile assembly - Google Patents
Method for manufacturing laminated tile assembly Download PDFInfo
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- CN108574025B CN108574025B CN201810490715.8A CN201810490715A CN108574025B CN 108574025 B CN108574025 B CN 108574025B CN 201810490715 A CN201810490715 A CN 201810490715A CN 108574025 B CN108574025 B CN 108574025B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
- H10F71/137—Batch treatment of the devices
- H10F71/1375—Apparatus for automatic interconnection of photovoltaic cells in a module
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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
本发明提供了一种叠瓦组件的制作方法，属于光伏发电领域，叠瓦组件包括从下到上依次层叠设置的下表层、太阳能电池层和上表层，太阳能电池层包括第一太阳能电池片、第二太阳能电池片和熔点低于层压温度的焊接层；叠瓦组件的制作方法包括：在下表层上分别铺设第一太阳能电池片、焊接层和第二太阳能电池片；在第一太阳能电池片和第二太阳能电池片上方铺设上表层；将铺设完成的下表层、太阳能电池层和上表层加热至层压温度进行层压，使焊接层融化以将第一太阳能电池片和第二太阳能电池片焊接。利用层压过程中的加热使焊接层融化，完成第一太阳能电池片和第二太阳能电池片的焊接，省去了单独进行焊接的步骤，简化了工艺，提高了生产效率。
The invention provides a method for manufacturing a shingled component, belonging to the field of photovoltaic power generation. The shingled component comprises a lower surface layer, a solar cell layer and an upper surface layer which are sequentially stacked from bottom to top, and the solar cell layer includes a first solar cell sheet, The second solar cell sheet and the welding layer whose melting point is lower than the lamination temperature; the manufacturing method of the shingled module comprises: laying the first solar cell sheet, the welding layer and the second solar cell sheet on the lower layer respectively; Lay the upper surface layer over the second solar cell sheet; heat the laid lower surface layer, the solar cell layer and the upper surface layer to the lamination temperature for lamination, and melt the solder layer to combine the first solar cell sheet and the second solar cell sheet welding. The welding layer is melted by heating in the lamination process, and the welding of the first solar cell and the second solar cell is completed, the step of welding separately is omitted, the process is simplified, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of photovoltaic power generation, and particularly relates to a method for manufacturing a laminated tile assembly.
Background
The lamination assembly is a high-efficiency assembly which is gradually popular in the photovoltaic industry at present, the lamination assembly connects the solar cell cutting pieces in a lap joint mode, a main grid line or a back electrode at the edges of two ends of the solar cell string is welded by adopting a small amount of welding strips, and then the bus bar is welded with the led-out welding strips. Compared with the conventional module, the module has the advantages that the solar cells are closely arranged in a series-parallel structure, the internal loss caused by connecting the cell pieces with the interconnection strips is reduced, more than 13% of the cell pieces of the conventional module can be placed in the same module area, and the conversion efficiency of the module is improved.
The complete production flow of the existing laminated assembly is as follows: battery detection → conductive adhesive curing/solder tape welding → laying → laminating → edge removing → framing → connecting terminal box → testing → inspection → packaging and warehousing. The manufacturing method of the laminated assembly mainly comprises the following steps: conductive paste curing/solder ribbon soldering → laying → laminating. In the step of conductive adhesive curing/solder strip soldering, the solar cell pieces are soldered together in an end lap joint to form a solar cell layer. And then in the laying step, the toughened glass, the solar cell packaging adhesive film and the solar cell layer are laid according to requirements. And finally, laminating to manufacture the laminated tile assembly.
The existing method for manufacturing the laminated tile assembly needs to weld the cell slice into the solar cell layer in advance, and then the solar cell layer, the toughened glass and the solar cell packaging adhesive film are laminated and laid, so that the manufacturing steps are more, the production flow line is long, and the production efficiency is lower.
Disclosure of Invention
The invention aims to provide a method for manufacturing a laminated assembly, and aims to solve the technical problems that the production flow line is long and the production efficiency is low due to more manufacturing steps of the method for manufacturing the laminated assembly in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a method for making of stack tile subassembly, the stack tile subassembly includes from the bottom up and stacks gradually the lower top layer, solar wafer layer and the upper surface layer that set up, solar wafer layer includes first solar wafer, one end overlap and locates the second solar wafer of first solar wafer one end top with locate first solar wafer with between the second solar wafer overlap position and the fusing point is less than the welded layer of lamination temperature, the method for making of stack tile subassembly includes following step:
respectively paving the first solar cell, the welding layer and the second solar cell on the lower surface layer according to a preset sequence;
laying an upper surface layer above the first solar cell and the second solar cell;
heating the laid lower surface layer, the laid solar cell layer and the laid upper surface layer to a laminating temperature for laminating, and melting the welding layer to weld the first solar cell piece and the second solar cell piece.
Further, the step of respectively laying the first solar cell, the soldering layer and the second solar cell on the lower surface layer according to a preset sequence includes:
laying the first solar cell piece on the lower surface layer;
laying the welding layer at the end part of the first solar cell piece;
and overlapping the second solar cell piece on the welding layer.
Further, the welding layer is a flexible member.
Furthermore, a first groove with an open outer side surface is formed at the end part of the first solar cell; the laying of the soldering layer at the end of the first solar cell piece comprises:
and laying the welding layer in the first groove.
Furthermore, a second groove with an open outer side surface is formed at the end part of the second solar cell;
the stacking the second solar cell on the welding layer comprises:
covering the second groove on the top of the welding layer.
Furthermore, a supporting part protruding out of the bottom surface of the first groove is arranged in the first groove;
the bottom surface of the second groove is spaced from the top of the supporting part.
Further, before the heating the laid lower surface layer, the solar cell layer and the upper surface layer to a lamination temperature for lamination, the method further comprises the following steps:
pre-softening the contact surface of the upper surface layer, which is used for being attached to the solar cell sheet layer;
pre-pressing the contact surface of the upper surface layer towards the solar cell layer.
Further, before the heating the laid lower surface layer, the solar cell layer and the upper surface layer to a lamination temperature for lamination, the method further comprises the following steps:
pre-softening the contact surface of the lower surface layer, which is used for being attached to the solar cell sheet layer;
pre-pressing the contact surface of the lower surface layer towards the solar cell layer.
Furthermore, an upper pre-softening adhesive film layer is arranged on the contact surface of the upper surface layer, which is attached to the solar cell sheet layer, and a lower pre-softening adhesive film layer is arranged on the contact surface of the lower surface layer, which is attached to the solar cell sheet layer;
pre-softening the contact surface of the upper surface layer and the solar cell sheet layer comprises the following steps:
heating and melting the upper pre-softened adhesive film layer;
pre-softening the contact surface of the lower surface layer attached to the solar cell sheet layer comprises:
and heating and melting the lower pre-softening adhesive film layer.
Further, the heating the laid-up lower surface layer, the solar cell layer and the upper surface layer to a lamination temperature for lamination includes:
heating the laid lower surface layer, the laid solar cell layer and the laid upper surface layer to the melting point of the welding layer;
vacuumizing the space between the upper surface layer and the lower surface layer;
the upper and lower skin layers are heated to the lamination temperature.
The manufacturing method of the laminated tile assembly provided by the invention has the beneficial effects that: compared with the prior art, the manufacturing method of the laminated tile assembly has the advantages that the welding layer with the melting point lower than the laminating temperature is adopted, the first solar cell, the welding layer and the second solar cell are laid according to requirements only when the solar cell layer is laid, the welding layer is melted by heating in the subsequent laminating process, the welding of the first solar cell and the second solar cell is completed, the step of independently welding is omitted, the process is simplified, and the production efficiency is improved. And the welded solar cell layer does not need to be carried, so that the possibility of damage to the solar cell layer is reduced. Meanwhile, in the laminating process, the first solar cell and the second solar cell are welded, so that the welded solar cell layer is more fit with the shapes of the upper surface layer and the lower surface layer, and the situation that the solar cell layer is cracked in the laminating process due to the fact that the shapes of the solar cell layer welded in advance and the upper surface layer and the lower surface layer are deviated is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a flow chart of a method for manufacturing a shingle assembly according to an embodiment of the present invention;
FIG. 2 is a schematic exploded view of a shingle assembly according to an embodiment of the present invention;
FIG. 3 is a front view of a solar cell sheet of a shingle assembly provided by an embodiment of the present invention;
figure 4 is a top view of the solar cell sheet layer shown in figure 3.
Wherein, in the figures, the respective reference numerals:
1-lower surface layer; 11-lower pre-softening the adhesive film layer; 2-a solar cell layer; 21-a first solar cell sheet; 211 — a first recess; 212-a support portion; 22-a solder layer; 23-a second solar cell sheet; 231-a second groove; 3-upper surface layer; 31-pre-softening the adhesive film layer.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in 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.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" or "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to fig. 2, a method for manufacturing a laminated assembly according to the present invention will now be described. The utility model provides a method for making a shingle assembly, shingle assembly includes from the bottom up range upon range of lower top layer 1, solar cell layer 2 and the upper surface layer 3 that sets up in proper order, solar cell layer 2 includes first solar wafer 21, the second solar wafer 23 of one end overlap setting in first solar wafer 21 one end top and locate between first solar wafer 21 and the overlap position of second solar wafer 23 and the fusing point is less than the welding layer 22 of lamination temperature, the method for making of shingle assembly includes following step:
respectively paving a first solar cell 21, a welding layer 22 and a second solar cell 23 on the lower surface layer 1 according to a preset sequence;
laying an upper surface layer 3 above the first solar cell 21 and the second solar cell 23;
the laid lower surface layer 1, solar cell layer 2 and upper surface layer 3 are heated to a lamination temperature for lamination, and the soldering layer 22 is melted to solder the first solar cell sheet 21 and the second solar cell sheet 23.
Compared with the prior art, the manufacturing method of the laminated tile assembly has the advantages that the welding layer 22 with the melting point lower than the laminating temperature is adopted, the first solar cell piece 21, the welding layer 22 and the second solar cell piece 23 are laid according to requirements only when the solar cell layer 2 is laid, the welding layer 22 is melted by heating in the laminating process, the welding of the first solar cell piece 21 and the second solar cell piece 23 is completed, the step of independently welding is omitted, and the process is simplified. After the manufacturing method of the tile-folding assembly is adopted, the complete production flow of the tile-folding assembly is as follows: the method comprises the steps of battery detection → laying of a solar battery layer → lamination → edge removal → framing → connection of a junction box → test → inspection → packaging and warehousing, and production efficiency is improved. And the welded solar cell layer 2 does not need to be transported, so that the possibility of damage to the solar cell layer 2 is reduced. Meanwhile, in the laminating process, the first solar cell piece 21 and the second solar cell piece 23 are welded, so that the welded solar cell layer 2 is more fit with the shapes of the upper surface layer 3 and the lower surface layer 1, and the problem that the solar cell layer 2 is cracked in the laminating process due to the deviation of the shapes of the pre-welded solar cell layer 2 and the upper surface layer 3 and the lower surface layer 1 is avoided.
Specifically, the laminating operation is performed by using a laminator, and the lower surface layer 1, the solar cell layer 2, and the upper surface layer 3 may be directly laid in the laminator, or the lower surface layer 1, the solar cell layer 2, and the upper surface layer 3 may be sequentially laid and transferred into the laminator. Laying the lower surface layer 1 in a laminating machine, and laying a first solar cell 21, a welding layer 22 and a second solar cell 23 on the lower surface layer 1 according to a preset sequence, so that the end part of the first solar cell 21, the welding layer 22 and the end part of the second solar cell 23 are sequentially stacked to form a solar cell layer 2; the preset sequence may be that the soldering layer 22 is coated on the end of the first solar cell piece 21, then the first solar cell piece 21 and the soldering layer 22 are laid on the lower surface layer 1 together, and finally the end of the second solar cell piece 23 is laid on the soldering layer 22. Finally, an upper surface layer 3 is laid on the solar cell layer 2; and (3) performing lamination at a lamination temperature, so that the welding layer 22 is melted to weld the first solar cell piece 21 and the second solar cell piece 23 together, and the upper surface layer 3, the solar cell layer 2 and the lower surface layer 1 are bonded together through lamination to form a laminated piece assembly. The lower surface layer 1 may include a lower tempered glass layer and a lower solar cell encapsulation adhesive film stacked from bottom to top. The upper surface layer 3 may include an upper solar cell encapsulant film and an upper tempered glass layer stacked from bottom to top. The lamination temperature is generally 150 + -5 deg.C, and solder strip or solder paste with melting point lower than the lamination temperature is used for the solder layer 22. And sequentially paving a lower toughened glass layer and a lower solar cell packaging adhesive film from bottom to top in the laminating machine. Then, a first solar cell 21 is laid on the lower solar cell packaging adhesive film, a strip-shaped welding layer 22 is arranged on one longitudinal end of the first solar cell 21 along the transverse direction of the solar cell, a second solar cell 23 is arranged on the lower solar cell packaging adhesive film at one longitudinal side of the first solar cell 21, and one end of the second solar cell 23 is arranged on the welding layer 22, so that the first solar cell 21, the second solar cell 23 and the welding layer 22 form a solar cell layer 2. And then, an upper tempered glass layer and an upper solar cell packaging adhesive film are sequentially paved on the solar cell layer 2 from bottom to top. And finally, pumping out air in the assembly through a laminating machine, and heating to melt the upper solar cell packaging adhesive film and the lower solar cell packaging adhesive film so as to bond the solar cell layer 2 with the upper surface layer 3 and the lower surface layer 1. During the lamination process, the welding layer 22 is melted by the lamination temperature, and the welding of the first solar cell piece 21 and the second solar cell piece 23 is completed.
Further, referring to fig. 2 to 3 together, as an embodiment of the method for manufacturing a laminated assembly according to the present invention, the step of laying the first solar cell 21, the solder layer 22 and the second solar cell 23 on the lower surface layer 1 in a predetermined order includes:
laying a first solar cell 21 on the lower surface layer 1;
laying a welding layer 22 on the end part of the first solar cell 21;
the second solar cell sheet 23 is stacked on the solder layer 22.
Specifically, the first solar cell 21, the solder layer 22 and the second solar cell 23 are laid on the lower surface layer 1 in a predetermined sequence, wherein the first solar cell 21 is laid on the lower surface layer 1, the solder layer 22 is laid on one end of the first solar cell 21, and one end of the second solar cell 23 is finally stacked on the solder layer 22.
Further, referring to fig. 2 to fig. 3, as an embodiment of the method for manufacturing a laminated assembly according to the present invention, the welding layer 22 is a flexible member.
Specifically, the solder layer 22 is a flexible member that can be deformed by an external force, and for example, the solder layer 22 may be formed by applying solder paste to an end portion of the first solar cell sheet 21. During the lamination process, the solder layer 22 can relieve the pressure of the first solar cell piece 21 and the second solar cell piece 23 through the deformation of the solder layer, so as to prevent the first solar cell piece 21 and the second solar cell piece 23 from being cracked. The thickness of the welding layer 22 is larger than the minimum thickness required by welding, so that the first solar cell 21 and the second solar cell 23 are prevented from extruding the welding layer 22 in the subsequent lamination process, and the welding layer 22 cannot meet the welding requirement due to too small thickness.
Further, referring to fig. 2 to fig. 3, as an embodiment of the method for manufacturing a laminated assembly according to the present invention, the end of the first solar cell 21 is provided with a first groove 211 with an open outer side; laying the solder layer 22 on the end portion of the first solar cell piece 21 includes:
the welding layer 22 is laid in the first recess 211.
By arranging the welding layer 22 in the first groove 211, the thickness of the laminated part of the first solar cell 21, the welding layer 22 and the second solar cell 23 is reduced, and the phenomenon that the first solar cell 21 or the second solar cell 23 is cracked due to concentrated stress caused by overlarge thickness of the laminated part of the first solar cell 21, the welding layer 22 and the second solar cell 23 in the laminating process is avoided. The thickness of the welding layer 22 can be increased under the condition that the thickness of the stacked part is smaller, and the welding quality is ensured. The flowing and shielding of the surface of the first solar cell piece 21 after the welding layer 22 is melted can also be avoided to a certain extent. Specifically, the first solar cell 21 and the second solar cell 23 are arranged in a longitudinal direction, the first groove 211 is formed in a lateral direction on an upper surface of the first solar cell 21, a top surface and an outer side surface of the first groove 211 are opened, a solder tape is applied or solder paste is applied to a bottom surface of the first groove 211 to form the solder layer 22, and an end portion of the second solar cell 23 is inserted into the first groove 211 from the opened outer side surface of the first groove 211 and is bonded to the solder layer 22. The soldering layer 22 is formed by coating soldering paste on the bottom surface of the first groove 211, the thickness of the soldering paste layer is larger than the minimum thickness required by soldering, and therefore the situation that the first solar cell 21 and the second solar cell 23 extrude the soldering layer 22 in the subsequent laminating process is avoided, and the soldering requirement cannot be met due to the fact that the thickness of the soldering layer 22 is too small.
Further, referring to fig. 2 to fig. 3, as an embodiment of the method for manufacturing a laminated assembly according to the present invention, the end of the second solar cell 23 is provided with a second groove 231 with an open outer side surface;
the stacking of the second solar cell sheet 23 on the solder layer 22 includes:
a second recess 231 is provided overlying the top of the solder layer 22.
So that the thickness of the laminated portion of the first solar cell sheet 21, the solder layer 22 and the second solar cell sheet 23 can be further reduced. The flowing and shielding of the surface of the second solar cell piece 23 after the welding layer 22 is melted can also be avoided to a certain extent.
Further, referring to fig. 3 to fig. 4, as an embodiment of the method for manufacturing a laminated assembly according to the present invention, a supporting portion 212 protruding from a bottom surface of the first groove 211 is disposed in the first groove 211;
the bottom surface of the second groove 231 is spaced apart from the top of the support portion 212.
In the subsequent lamination process, the first solar cell 21 and the second solar cell 23 are pressed by the upper surface layer 3 and the lower surface layer 1 to generate a certain displacement, and the bottom surface of the second groove 231 is not in direct contact with the top surface of the support part 212 by the distance between the bottom surface of the second groove 231 and the top of the support part 212, so that the bottom surface of the second groove 231 is prevented from being pressed by the support part 212 to cause damage. Optionally, the thickness of the welding layer 22 is greater than the height of the support portion 212, and the welding layer 22 covers the top of the support portion 212. Optionally, the supporting portion 212 is a barrier strip disposed outside the welding layer 22 and parallel to the long axis of the first groove 211. On the one hand, the barrier strip can ensure a minimum thickness of the solder layer 22, and on the other hand, after the solder layer 22 melts, the melted solder layer 22 is prevented from flowing away from the outside of the first recess 211. The bars are disposed laterally along the outer side edges of the first recess 211. The height of the barrier strip is less than the depth of the first groove 211, so that the end of the second solar cell piece 23 can be inserted into the groove to determine the relative position of the solar cell piece main body and the second solar cell piece 23.
Further, referring to fig. 3, as an embodiment of the method for manufacturing a laminated assembly according to the present invention, a gap is formed between the end of the second solar cell 23 and the inner sidewall of the first groove 211.
When the welding layer 22 deforms, the welding layer 22 can flow into a gap between the end portion of the second solar cell 23 and the inner side wall of the first groove 211, and the first groove 211 is prevented from being closed too much so that the welding layer 22 cannot deform. Meanwhile, further, the width of the gap between the end of the second solar cell piece 23 and the inner side wall of the first groove 211 is adjusted so that the gap can accommodate the excess part of the soldering layer 22, and the soldering layer 22 is prevented from flowing to the surface of the first solar cell piece 21 or the second solar cell piece 23.
Further, as a specific embodiment of the method for manufacturing a laminated tile assembly provided by the present invention, before heating the laid lower surface layer 1, solar cell layer 2 and upper surface layer 3 to a lamination temperature for lamination, the method further includes:
pre-softening the contact surface of the upper surface layer 3 for being attached to the solar cell layer 2;
the contact surface of the upper surface layer 3 is pre-pressed against the solar cell layer 2.
Specifically, the lower surface of the upper solar cell packaging adhesive film in the upper surface layer 3 is a contact surface for being attached to the solar cell layer 2, and the contact surface may be a portion where the lower surface of the upper solar cell packaging adhesive film is attached to the first solar cell sheet 21 and the second solar cell sheet 23, or a portion where the lower surface of the upper solar cell packaging adhesive film is attached to one of the first solar cell sheet 21 and the second solar cell sheet 23. The contact surface of the upper surface layer 3 is pre-extruded towards the solar cell layer 2, so that before lamination, the lower surface of the softened upper surface layer 3 is more attached to the upper surface of the solar cell layer 2, and stress concentration caused by non-inosculation of the lower surface of the upper surface layer 3 and the upper surface of the solar cell layer 2 in the lamination process is avoided, so that the solar cell is damaged. The contact surface between the upper surface layer 3 and the solar cell layer 2 is pre-softened, and the lower surface of the upper solar cell packaging adhesive film can be heated to melt the lower surface of the solar cell packaging adhesive film.
Further, as a specific embodiment of the method for manufacturing a laminated tile assembly provided by the present invention, before heating the laid lower surface layer 1, solar cell layer 2 and upper surface layer 3 to a lamination temperature for lamination, the method further includes:
pre-softening the contact surface of the lower surface layer 1 for being attached to the solar cell layer 2;
the contact surface of the lower skin layer 1 is pre-pressed against the solar cell layer 2.
Specifically, the upper surface of the lower solar cell encapsulant film in the lower surface layer 1 is a contact surface for being bonded to the solar cell layer 2, and the contact surface may be a portion where the upper surface of the lower solar cell encapsulant film is bonded to the first solar cell sheet 21 and the second solar cell sheet 23, or a portion where the upper surface of the lower solar cell encapsulant film is bonded to one of the first solar cell sheet 21 and the second solar cell sheet 23. The contact surface of the lower surface layer 1 is pre-extruded towards the solar cell layer 2, so that the upper surface of the softened lower surface layer 1 is more attached to the lower surface of the solar cell layer 2 before lamination, and stress concentration and damage of a solar cell piece caused by non-coincidence of the upper surface of the lower surface layer 1 and the lower surface of the solar cell layer 2 in the lamination process are avoided. The contact surface between the lower surface layer 1 and the solar cell layer 2 is pre-softened, which may be by heating the upper surface of the lower solar cell packaging adhesive film to melt the upper surface of the solar cell packaging adhesive film.
Further, referring to fig. 2, as a specific embodiment of the method for manufacturing a laminated assembly according to the present invention, an upper pre-softening adhesive film layer 31 is disposed on a contact surface of the upper surface layer 3 and the solar cell layer 2, and a lower pre-softening adhesive film layer 11 is disposed on a contact surface of the lower surface layer 1 and the solar cell layer 2;
pre-softening the contact surface of the upper surface layer 3 and the solar cell layer 2 comprises:
heating and melting the pre-softened adhesive film layer 31;
pre-softening the contact surface of the lower surface layer 1 to the solar cell layer 2 comprises:
the lower pre-softening adhesive film layer 11 is heated to melt.
Specifically, the lower surface of the upper solar cell packaging adhesive film in the upper surface layer 3 is provided with an upper pre-softening adhesive film layer 31, the upper pre-softening adhesive film layer 31 also adopts a solar cell packaging adhesive film, and the melting point of the upper pre-softening adhesive film layer 31 is smaller than that of the upper solar cell packaging adhesive film. The upper pre-softening adhesive film layer 31 is melted by heating, and then the softened upper pre-softening adhesive film layer 31 is deformed to be attached to the upper surface of the solar cell layer 2 in the process of pre-extruding the contact surface of the upper surface layer 3 towards the solar cell layer 2. Optionally, the melting point of the upper pre-softened adhesive film layer 31 is lower than the melting point of the welding layer 22, so that the welding layer 22 is not affected by the temperature for melting the upper pre-softened adhesive film layer 31, and the welding layer 22 is prevented from being repeatedly melted in the melting process and the laminating process of the upper pre-softened adhesive film layer 31 to affect the welding quality. The upper surface of the lower solar cell packaging adhesive film in the lower surface layer 1 is provided with a lower pre-softening adhesive film layer 11, the lower pre-softening adhesive film layer 11 also adopts a solar cell packaging adhesive film, and the melting point of the lower pre-softening adhesive film layer 11 is smaller than that of the lower solar cell packaging adhesive film. The lower pre-softening adhesive film layer 11 is melted by heating, and then the contact surface of the lower surface layer 1 is pre-extruded towards the solar cell layer 2, so that the softened lower pre-softening adhesive film layer 11 is deformed to be attached to the lower surface of the solar cell layer 2, and stress concentration in the laminating process is avoided. Optionally, the melting point of the lower pre-softened adhesive film layer 11 is lower than the melting point of the welding layer 22, so that the welding layer 22 is not affected by the temperature of the lower pre-softened adhesive film layer 11, and the welding layer 22 is prevented from being repeatedly melted in the melting process and the laminating process of the lower pre-softened adhesive film layer 11 to affect the welding quality.
Further, heating the laid lower surface layer 1, solar cell layer 2, and upper surface layer 3 to a lamination temperature for lamination includes:
heating the paved lower surface layer 1, the solar cell layer 2 and the upper surface layer 3 to the melting point of the welding layer 22;
vacuumizing the space between the upper surface layer 3 and the lower surface layer 1;
the upper and lower skin layers 3, 1 are heated to the lamination temperature.
Specifically, in the laminating process, the temperature of the laminator can be increased to the melting point of the welding layer 22 to melt the welding layer 22, then the space between the upper surface layer 3 and the lower surface layer 1 is vacuumized to clamp the solar cell layer 2 by the upper surface layer 3 and the lower surface layer 1, the heating is continued to the laminating temperature, so that the upper solar cell packaging adhesive film in the upper surface layer 3 and the lower solar cell packaging adhesive film in the lower surface layer 1 are melted, and the lower toughened glass layer, the solar cell layer 2 and the upper toughened glass layer are bonded together.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a method for making of stack tile subassembly, its characterized in that, the stack tile subassembly includes from the bottom up and stacks gradually lower top layer (1), solar cell layer (2) and upper surface layer (3) that set up, solar cell layer (2) include first solar wafer (21), one end overlap locate second solar wafer (23) of first solar wafer (21) one end top and locate between first solar wafer (21) and second solar wafer (23) overlap position and melting point is less than the welding layer (22) of lamination temperature, welding layer (22) are flexible component, the method for making of stack tile subassembly includes following step:
the first solar cell piece (21), the welding layer (22) and the second solar cell piece (23) are respectively paved on the lower surface layer (1) according to a preset sequence;
laying an upper surface layer (3) above the first solar cell piece (21) and the second solar cell piece (23);
heating the laid lower surface layer (1), the laid solar cell layer (2) and the laid upper surface layer (3) to a laminating temperature for laminating, and melting the welding layer (22) to weld the first solar cell piece (21) and the second solar cell piece (23).
2. The method of making a shingle assembly as recited in claim 1, wherein: the step of respectively laying the first solar cell piece (21), the welding layer (22) and the second solar cell piece (23) on the lower surface layer (1) according to a preset sequence comprises the following steps:
paving the first solar cell (21) on the lower surface layer (1);
laying the welding layer (22) at the end part of the first solar cell piece (21);
and overlapping the second solar cell piece (23) on the welding layer (22).
3. The method of making a shingle assembly as recited in claim 1, wherein: a first groove (211) with an open outer side surface is arranged at the end part of the first solar cell (21); the laying of the solder layer (22) at the end of the first solar cell sheet (21) includes:
-laying said welding layer (22) in said first recess (211).
4. A method of making a shingle assembly as defined in claim 3, wherein: a second groove (231) with an open outer side surface is arranged at the end part of the second solar cell piece (23);
the stacking of the second solar cell sheet (23) on the solder layer (22) includes:
covering the second groove (231) on top of the welding layer (22).
5. The method of making a shingle assembly as recited in claim 4, wherein: a supporting part (212) protruding out of the bottom surface of the first groove (211) is arranged in the first groove (211);
the bottom surface of the second groove (231) is spaced apart from the top of the support portion (212).
6. The method of making a shingle assembly as recited in claim 4, wherein: before the heating the laid lower surface layer (1), the laid solar cell layer (2) and the laid upper surface layer (3) to a lamination temperature for lamination, the method further comprises the following steps:
pre-softening the contact surface of the upper surface layer (3) for being attached to the solar cell layer (2);
pre-pressing the contact surface of the upper surface layer (3) towards the solar cell layer (2).
7. The method of making a shingle assembly as recited in claim 6, wherein: before the heating the laid lower surface layer (1), the laid solar cell layer (2) and the laid upper surface layer (3) to a lamination temperature for lamination, the method further comprises the following steps:
pre-softening the contact surface of the lower surface layer (1) for being attached to the solar cell layer (2);
pre-pressing the contact surface of the lower surface layer (1) towards the solar cell layer (2).
8. The method of making a shingle assembly as recited in claim 7, wherein: an upper pre-softening adhesive film layer (31) is arranged on the contact surface of the upper surface layer (3) and the solar cell layer (2), and a lower pre-softening adhesive film layer (11) is arranged on the contact surface of the lower surface layer (1) and the solar cell layer (2);
pre-softening the contact surface of the upper surface layer (3) and the solar cell layer (2) in a fitting manner, the pre-softening comprising:
heating and melting the upper pre-softening adhesive film layer (31);
pre-softening the contact surface of the lower surface layer (1) and the solar cell layer (2) in a fitting manner, the pre-softening comprising:
and heating and melting the lower pre-softening adhesive film layer (11).
9. The method of making a shingle assembly as recited in claim 8, wherein: the heating the laid lower surface layer (1), the solar cell layer (2) and the upper surface layer (3) to a lamination temperature for lamination comprises:
heating the laid lower surface layer (1), the laid solar cell layer (2) and the laid upper surface layer (3) to the melting point of the welding layer (22);
vacuumizing the space between the upper surface layer (3) and the lower surface layer (1);
the upper skin layer (3) and the lower skin layer (1) are heated to a lamination temperature.
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| KR102425420B1 (en) * | 2018-11-23 | 2022-07-27 | 청두 예판 사이언스 앤드 테크놀로지 컴퍼니 리미티드 | Manufacturing method and system of shingle cell and shingle photovoltaic module |
| CN111223958B (en) * | 2018-11-23 | 2022-10-14 | 成都晔凡科技有限公司 | Method and system for manufacturing laminated cell and laminated photovoltaic module |
| CN112071932A (en) * | 2019-06-11 | 2020-12-11 | 泰州隆基乐叶光伏科技有限公司 | A shingled component and a method for making a solar cell |
| CN111261741A (en) * | 2020-01-23 | 2020-06-09 | 成都晔凡科技有限公司 | Method for manufacturing laminated assembly and laminated assembly |
| CN111785796A (en) * | 2020-07-16 | 2020-10-16 | 晶科绿能(上海)管理有限公司 | Battery, shingled photovoltaic module and method for manufacturing the same |
| CN115241294B (en) * | 2022-07-21 | 2024-05-17 | 常州时创能源股份有限公司 | Photovoltaic shingled assembly and preparation method thereof |
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| CN103367549B (en) * | 2013-07-22 | 2016-08-10 | 山东力诺太阳能电力股份有限公司 | Preparation method of patterned colored solar cell module |
| JP2015168803A (en) * | 2014-03-10 | 2015-09-28 | 日立化成株式会社 | Conductive adhesive composition, connector, solar cell module and method for producing the same |
| CN206820720U (en) * | 2017-06-30 | 2017-12-29 | 黄石金能光伏有限公司 | White double glass imbrication photovoltaic modulies and photovoltaic system |
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