Laminating tool for double-glass all-black photovoltaic module

Abstract

The utility model provides a laminating tool for a double-glass all-black photovoltaic module, which comprises a rectangular frame body, corner braces arranged at four corners of the rectangular frame body and a protective strip crossing the rectangular frame body, when the photovoltaic module is laminated, the laminating tool for the double-glass all-black photovoltaic module is positioned on the back surface of the photovoltaic module, and the protective strip is positioned on the back surface of the rectangular frame body. The back edge of the photovoltaic module is in contact with at least two opposite sides of the rectangular frame body, the area where a back outgoing line and a bus bar of the photovoltaic module are located is in contact with the protective strip, and the protective strip is used for shielding the area where the back outgoing line and the bus bar of the photovoltaic module are located during lamination. The protection strip is provided with a plurality of receding holes corresponding to the outgoing lines. According to the arrangement, the shedding proportion of the bus bar coating is greatly reduced, and the influence of lamination indentations on the appearance and quality of the photovoltaic module is prevented.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic component production, in particular to a laminating tool for a double-glass all-black photovoltaic component. Background Art

[0002] The laminating tools for double-glass all-black photovoltaic modules have performed well in terms of technological innovation, durability, safety, environmental protection and appearance design. They are the best choice for the current market that combines high efficiency and high aesthetic design. However, during the lamination process of the current double-glass all-black modules, the adhesive film melts at a high temperature of 140°C during the lamination process, which will cause the black lead wires at the glass holes and the busbar coating on the front of the module to fall off, and then the black busbar will be indented, which seriously affects the appearance quality of the module and reduces the qualified rate. This problem is a major problem in the double-glass all-black module industry.

[0003] Therefore, it is necessary to design a laminating tooling for double-glass all-black photovoltaic modules to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a laminating tool for a double-glass all-black photovoltaic module which can prevent busbar coating from falling off and lamination indentation.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a laminating tool for a double-glass all-black photovoltaic module, which includes a rectangular frame, corner codes arranged on the four corners of the rectangular frame and a protective strip across the rectangular frame. When the photovoltaic module is laminated, the laminating tool for the double-glass all-black photovoltaic module is located on the back of the photovoltaic module, the back edge of the photovoltaic module is in contact with at least two opposite sides of the rectangular frame, and the back lead wires and bus bars of the photovoltaic module are located in the area in contact with the protective strip. The protective strip is used to shield the back lead wires and bus bars of the photovoltaic module during lamination, and the protective strip is provided with a plurality of clearance holes corresponding to the lead wires.

[0006] As a further improved technical solution of the utility model, the protective strip is located in the middle position of the rectangular frame, the length of the protective strip is 1000-1200mm, the width is 70-90mm, the thickness is 2-3mm, and the clearance hole is a waist-shaped hole, the length of which is 60-70mm and the width is 10-20mm.

[0007] As a further improved technical solution of the utility model, the material of the protective strip is epoxy resin, PVC, stainless steel, PE, ABS, EPE or TPT.

[0008] As a further improved technical solution of the utility model, the side of the protection strip facing the photovoltaic module is covered with a polytetrafluoroethylene cloth, the size of the polytetrafluoroethylene cloth matches the size of the protection strip, and the thickness of the polytetrafluoroethylene cloth is 0.1-0.2 mm.

[0009] As a further improved technical solution of the utility model, the rectangular frame is made of aluminum alloy, and the outer side of the rectangular frame is coated with Teflon tape.

[0010] As a further improved technical solution of the utility model, the four corners of the protection strip are arc-shaped.

[0011] As a further improved technical solution of the utility model, the corner code and the rectangular frame are fixed by rivets.

[0012] As a further improved technical solution of the utility model, the angle code is made of a stainless steel tube.

[0013] As a further improved technical solution of the utility model, the rectangular frame is made of an aluminum alloy hollow square tube, and the thickness of the aluminum alloy hollow square tube is 4-7 mm.

[0014] As a further improved technical solution of the utility model, the protection strip is fixed to the rectangular frame by rivets.

[0015] It can be seen from the above technical solutions that the laminating tooling for double-glass all-black photovoltaic modules of the utility model can completely avoid the busbar coating at the lead-out line position from falling off and the lamination indentations from appearing without changing the original lamination process by adding tooling; the risk of coating falling off at the indentations can be effectively reduced by adopting the laminating tooling for double-glass all-black photovoltaic modules, the indentation ratio of the double-glass photovoltaic modules can be reduced to less than 5%; in addition, the laminating tooling for double-glass all-black photovoltaic modules of the utility model is simple to use in the process and easy to operate, without changing the existing lamination process, and the tooling has a simple structure and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cooperation between the laminating tooling for the double-glass all-black photovoltaic module and the photovoltaic module according to one embodiment of the utility model.

[0017] Figure 2 for Figure 1 Schematic diagram of the lamination tooling for double-glass all-black photovoltaic modules.

[0018] Figure 3 for Figure 1 Magnified view of the middle circle area. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Please refer to Figure 1 and Figure 2 As shown, the utility model provides a laminating tool 10 for double-glass all-black photovoltaic modules, which includes a rectangular frame 11, corner brackets 12 arranged at four corners of the rectangular frame 10, and a protective strip 13 across the rectangular frame 11. When laminating the photovoltaic module 20, the laminating tool 10 for double-glass all-black photovoltaic modules is located on the back of the photovoltaic module 20.

[0021] The rectangular frame 11 is used to support the protective strip 13 and the photovoltaic module 20 to be laminated. The back edge of the photovoltaic module 20 is in contact with at least two opposite sides of the rectangular frame 11, that is, the width of the rectangular frame 11 is adapted to the width of the photovoltaic module 20, and the length of the rectangular frame 11 is equal to or greater than the length of the photovoltaic module 20. The back lead wires and bus bar areas of the photovoltaic module 20 are in contact with the protective strip 13. The protective strip 13 is used to shield the back lead wires and bus bar areas of the photovoltaic module 20 during lamination. The protective strip 13 is provided with a plurality of clearance holes 131 corresponding to the lead wires. Please refer to Figure 3 As shown, the clearance hole 131 corresponds to the back glass hole 21 of the photovoltaic module 20 and the position where the back lead wire 22 is connected to the bus bar 23.

[0022] The protection strip 13 is located in the middle of the rectangular frame 11. The length of the protection strip 13 is 1000-1200 mm, the width is 70-90 mm, and the thickness is 2-3 mm. The clearance hole 131 is a waist-shaped hole with a length of 60-70 mm and a width of 10-20 mm. The material of the protection strip 13 can be epoxy resin, PVC (polyvinyl chloride), stainless steel, PE (polyethylene), ABS (acrylonitrile-butadiene-styrene copolymer), EPE (foamed polyethylene) or TPT (DuPont Tedlar-PET-Tedlar three-layer composite film).

[0023] The side of the protective strip 13 facing the photovoltaic module 20 is covered with a PTFE cloth, the size of which matches the size of the protective strip 13, and the thickness of the PTFE cloth is 0.1-0.2 mm. This prevents the lamination tooling from adhering to the glass of the photovoltaic module. The four corners of the protective strip 13 are polished into arc shapes. The protective strip 13 is fixed to the rectangular frame 11 by rivets.

[0024] The corner code 12 is used to reinforce the rectangular frame 11, and is fixed to the rectangular frame 11 by rivets. The corner code 12 is preferably made of a stainless steel tube. The rectangular frame 11 is made of aluminum alloy, preferably an aluminum alloy hollow square tube, and the thickness of the aluminum alloy hollow square tube is 4-7 mm. The outer side of the rectangular frame 11 is coated with Teflon tape.

[0025] In this embodiment, the rectangular frame 11 is a hollow square tube of aluminum alloy with a thickness of 6mm, and the protective strip 13 is made of epoxy resin. The length of the protective strip 13 is 1108mm, the width is 80mm, and the thickness is 2.5mm. The clearance hole 131 is a waist-shaped hole with a length of 65mm and a width of 15mm. Before lamination, the photovoltaic module to be laminated is placed on the laminating tool for double-glass all-black photovoltaic modules, so that the lead-out wires on the back of the photovoltaic module correspond to the clearance holes 131. The photovoltaic module is fixed to the laminating tool with edge-sealing tape. The laminating tool and the photovoltaic module enter the laminating machine together. The laminating tool serves as a support to relieve the bending point of the lead-out wire from being directly squeezed to the glass surface during lamination pressure, resulting in an indentation.

[0026] After lamination, the photovoltaic module prepared by using the lamination tooling for the double-glass all-black photovoltaic module of this embodiment was tested. The specific test items are as follows:

[0027] Cross-linking degree: Sample the laminated film at the position corresponding to the lamination tooling on the photovoltaic module and the test is qualified;

[0028] Mechanical load reliability test: The photovoltaic modules are tested for mechanical load reliability. The parameter requirements are as follows: load pressure 1000Pa, 1000 cycles of testing, and the final power attenuation relative to the initial power is less than 5%, and the test is qualified; after the test, there is no obvious damage to the appearance of the photovoltaic modules;

[0029] EL test: no new hidden cracks, the test passed;

[0030] Appearance inspection: After lamination, check the position of the tape fixing tooling, and no tape residue or marks are found. Check the area covered by the protective strip, and there are no lamination indentations.

[0031] To sum up, the laminating tooling for double-glass all-black photovoltaic modules of the utility model can completely avoid the busbar coating at the lead-out line position from falling off and the lamination indentation from appearing without changing the original lamination process flow by adding the tooling; the indentation ratio of the double-glass photovoltaic modules can be reduced to less than 5% by adopting the laminating tooling for double-glass all-black photovoltaic modules; in addition, the laminating tooling for double-glass all-black photovoltaic modules of the utility model is simple to use in the process and easy to operate, without changing the existing lamination process, and the tooling has a simple structure and low production cost.

[0032] Terms such as "upper" and "lower" used herein to indicate spatial relative positions are used for the purpose of convenience to describe the relationship of one feature relative to another feature as shown in the drawings. It is understood that, depending on the placement of the product, the terms of spatial relative positions may be intended to include different orientations other than those shown in the drawings, and should not be construed as limitations on the claims.

[0033] In addition, the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A laminating tool for double-glass all-black photovoltaic modules, characterized by: It includes a rectangular frame, corner codes arranged on the four corners of the rectangular frame and a protective strip across the rectangular frame. When the photovoltaic modules are laminated, the laminating tooling for the double-glass all-black photovoltaic modules is located on the back of the photovoltaic modules, the back edge of the photovoltaic modules is in contact with at least two opposite sides of the rectangular frame, and the area where the back lead wires and bus bars of the photovoltaic modules are located is in contact with the protective strip. The protective strip is used to shield the area where the back lead wires and bus bars of the photovoltaic modules are located during lamination, and the protective strip is provided with a plurality of clearance holes corresponding to the lead wires.

2. The laminating tool for double-glass all-black photovoltaic modules according to claim 1, characterized in that: The protection strip is located in the middle of the rectangular frame, has a length of 1000-1200mm, a width of 70-90mm, and a thickness of 2-3mm, and the clearance hole is a waist-shaped hole, has a length of 60-70mm, and a width of 10-20mm.

3. The laminating tool for double-glass all-black photovoltaic modules according to claim 1, characterized in that: The material of the protective strip is epoxy resin, PVC, stainless steel, PE, ABS, EPE or TPT.

4. The laminating tool for double-glass all-black photovoltaic modules according to claim 1, characterized in that: The side of the protection strip facing the photovoltaic module is covered with a polytetrafluoroethylene cloth, the size of the polytetrafluoroethylene cloth matches the size of the protection strip, and the thickness of the polytetrafluoroethylene cloth is 0.1-0.2 mm.

5. The laminating tool for double-glass all-black photovoltaic modules according to claim 1, characterized in that: The rectangular frame is made of aluminum alloy, and the outer side of the rectangular frame is coated with Teflon tape.

6. The laminating tool for double-glass all-black photovoltaic modules according to claim 1, characterized in that: The four corners of the protection strip are arc-shaped.

7. The laminating tool for double-glass all-black photovoltaic modules according to claim 1, characterized in that: The corner code and the rectangular frame are fixed by rivets.

8. The laminating tool for double-glass all-black photovoltaic modules according to claim 1, characterized in that: The angle bracket is made of stainless steel pipe.

9. The laminating tool for double-glass all-black photovoltaic modules according to claim 1, characterized in that: The rectangular frame is made of an aluminum alloy hollow square tube, and the thickness of the aluminum alloy hollow square tube is 4-7 mm.

10. The laminating tool for double-glass all-black photovoltaic modules according to claim 1, characterized in that: The protection strip is fixed on the rectangular frame through rivets.

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