Solar cell module device and banding coating method thereof
A technology of solar modules and coating methods, which is applied in chemical instruments and methods, photovoltaic power generation, electrical components, etc., and can solve the problems of difficulty in uniform coating of adhesives, water vapor intrusion, and affecting the power generation efficiency of solar module devices, etc.
Inactive Publication Date: 2012-01-11
DU PONT APOLLO
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Problems solved by technology
[0003] However, the hot melt adhesive coating machine is heavy and difficult to control due to the necessary heating equipment. At the same time, due to the high temperature, it is impossible to directly control the glue gun manually.
In addition, due to the need to heat the hot melt adhesive and the viscosity of the hot melt adhesive itself, the injection port of the hot melt glue gun cannot be as thin as a needle, so the accuracy of coating is lacking.
[0004] Due to the above reasons, the conventional technology of edge-sealing substrate groups using hot-melt adhesive as an adhesive is cumbersome and lacks flexibility in operation, and lacks the accuracy of coating
In particular, when bonding two overlapping large glass substrates (for example, glass substrates of solar module devices), it is easy to cause warpage at the edge of the substrate group due to its large area, which makes it difficult for the adhesive to be evenly coated on the substrate group. edge
[0005] If the adhesive is not evenly coated on the edge of the substrate group, the edge of the substrate group will not be sealed, which will lead to moisture intrusion, which will affect the power generation efficiency of the solar module device
In this way, the yield rate is reduced, and the production cost is increased
Method used
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[0042] In order to make the description of the present disclosure more detailed and complete, the following provides an illustrative description of the implementation aspects and specific embodiments of the present invention; but this is not the only form of implementing or using the specific embodiments of the present invention. The description covers features of various embodiments as well as method steps and their sequences for constructing and operating those embodiments. However, other embodiments can also be used to achieve the same or equivalent functions and step sequences.
[0043] figure 1 A schematic diagram of a solar module device according to an aspect of the present invention is shown. Wherein, a solar cell layer 115 is formed on a first glass substrate 114 , and then an encapsulation material layer 117 such as polyethylene-vinyl acetate (EVA) is placed on the solar cell layer 115 . Then place a second glass substrate 112 on the encapsulation material layer 11...
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The invention discloses a solar cell module device and a banding coating method thereof. A photo-curing adhesive is utilized in the invention to substitute the traditional hot melt glue, so an unexpected effect is achieved, an edge region of a substrate group can be uniformly and accurately coated with the adhesive, and the cost is further reduced.
Description
technical field [0001] The present invention relates to an edge-sealing coating method, and in particular to an edge-sealing coating method of a solar module device. Background technique [0002] In the conventional technology, after the solar cell module is manufactured, in order to prevent water vapor from infiltrating from the edge of the solar cell module, hot melt adhesive is mostly used for the edge sealing coating process. Specifically, hot-melt adhesive is usually used as an adhesive, and the hot-melt adhesive is heated and coated on the edges of two overlapping glass substrates (or a glass substrate and a backplane). After the hot melt adhesive cools down, it will solidify and glue the edges of the two overlapping glass substrates, thereby preventing water vapor from penetrating into the interior of the solar cell module along the gap. [0003] However, the hot melt adhesive coating machine is heavy and difficult to control due to the necessary heating equipment, a...
Claims
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IPC IPC(8): H01L31/18H01L31/048
CPCB32B17/10155Y02E10/50B32B17/10302B32B17/10036B32B17/10788H01L31/048H01L31/0488
Inventor 戴怡文黄成沛
Owner DU PONT APOLLO