Film-bonded all-black photovoltaic module and manufacturing method thereof

A black light and film technology, which is used in photovoltaic power generation, final product manufacturing, sustainable manufacturing/processing, etc., can solve the problems of tandem belt and bus belt reflection, affecting the effect of sunlight absorption, aesthetic defects, etc., to reduce light pollution, The effect of improving the aesthetics

Pending Publication Date: 2019-02-26
江苏润达光伏无锡有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0003] Ordinary black photovoltaic modules replace the backplane, frame, etc. with black, but when the photovoltaic module is observed in the sun, the series connectio...
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Abstract

The invention provides a film-bonded all-black photovoltaic module, comprising: photovoltaic cell sheets, a tandem strip, a bus bar, glass, a black backplane and a black film. A plurality of photovoltaic cell sheets are welded in series to form cell strings through the tandem strip. The cell strings are arranged in series and in parallel. The strings of the cell strings are welded by using the busbar. The black film is stuck on the surface of the tandem strip and the bus bar. The front and back sides of all cell strings are bonded to the glass and the black backplane by a laminated adhesive.Further, the edge of the photovoltaic assembly is mounted with a black border. Further, the laminated adhesive is made of an EVA material. The appearance of the film-bonded all-black photovoltaic module is all black, and there is no white or reflective part, which improves the beauty of the module and does not produce a light reflection phenomenon.

Application Domain

Technology Topic

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  • Film-bonded all-black photovoltaic module and manufacturing method thereof
  • Film-bonded all-black photovoltaic module and manufacturing method thereof
  • Film-bonded all-black photovoltaic module and manufacturing method thereof

Examples

  • Experimental program(1)

Example Embodiment

[0029] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0030] Such as figure 1 with figure 2 As shown, the conventional packaging process for ordinary black photovoltaic modules is:
[0031] First, use a series connection tape 2 (such as tinned copper tape) to weld multiple photovoltaic cells 1 in series to form a battery string;
[0032] Then lay the glass 3 flat on the production line, which is used for the front protection of photovoltaic modules; lay EVA material on the glass 3 as the laminating glue 4;
[0033] Next, the front of each battery string is facing the glass 3 for layout, and each battery string is arranged in parallel, leaving a gap of 2 to 3 mm between the strings; the battery string 3 is connected by welding with the string using a bus bar;
[0034] Laminate glue 5 on the back of all battery strings after typesetting; Laminate glue 5 also uses EVA material;
[0035] Then lay the black backing sheet 6 on the back of the photovoltaic module, and then laminate the photovoltaic module to be laminated through a laminator;
[0036] After the lamination is completed, the black frame is installed to obtain the finished photovoltaic module.
[0037] Such as image 3 with Figure 4 As shown, the packaging process of the filmed all-black photovoltaic module proposed by the present invention is:
[0038] First, use a series connection tape 2 (such as tinned copper tape) to weld multiple photovoltaic cells 1 in series to form a battery string;
[0039] Next, stick a black film 7 on the surface of the battery string connection tape 2 and the material of the black film 7 is a PET film;
[0040] Then lay the glass 3 flat on the production line, which is used for the front protection of photovoltaic modules; lay EVA material on the glass 3 as the laminating glue 4;
[0041] Next, the front of each battery string is facing the glass 3 for layout, and each battery string is arranged in parallel, leaving a gap of 2 to 3 mm between the strings; the battery string 3 is connected by welding with the string using a bus bar;
[0042] Then paste the black film 7 on the surface of the bus bar. The material of the black film 7 is PET film;
[0043] Laminate adhesive 5 on the back of all battery strings; Laminate adhesive 5 also uses EVA material;
[0044] Then lay the black backing sheet 6 on the back of the photovoltaic module, and then laminate the photovoltaic module to be laminated through a laminator;
[0045] After the lamination is completed, the black frame is installed to obtain the finished photovoltaic module.
[0046] In other embodiments, transparent silica gel can also be used as the laminating glue.
[0047] Filmed all-black photovoltaic modules, after the environmental aging test, the IV test (power test) and EL test (electroluminescence test) did not change, indicating its superior reliability performance; the following table shows the parameters before and after aging; Pmax is the largest Power, RsVoc open circuit voltage, RsIsc short-circuit current, RsVpm maximum power point voltage, RsIpm maximum power point current.
[0048]
[0049] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be implemented Modifications or equivalent replacements, without departing from the spirit and scope of the technical solution of the present invention, shall be covered by the scope of the claims of the present invention.
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Description & Claims & Application Information

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