JPH02238254A - Manufacture of solar energy hybrid panel - Google Patents

Abstract

PURPOSE:To adhere a heat collector using hard adhesive resin such as polypropylene or polyethylene to a solar cell by coating the collector made of the resin with resin agent containing modified chlorinated resin as a material, and then adhering the cell thereto with adhesive having elastic properties. CONSTITUTION:In a solar energy hybrid panel of the case of a heat collector formed of hard adhesive resin such as polypropylene, the collector 1 is degreased, then coated with modified chlorinated resin paint with a brush, a roller, a sprayer, etc., to form a coating film 2. After the film 2 is dried, it is adhered to a solar cell 4 with adhesive 3 having elastic properties such as silicon having elastic properties. Before coating with the resin paint, the collector 1 is lightly roughed with paper file, etc., thereby further improving an adhered state. Water is circulated as heat collecting medium in the frame of the collector 1. The adhesive having elastic properties includes, for example, silicone, polyurethane, etc., Thus, the resin paint can be coated with the brush, etc., and a special device is not required, and an experienced skilled person is not necessary.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to photothermal energy, and particularly relates to a method for manufacturing a solar energy hybrid panel. It converts light energy into electricity and supplies it to various electrical devices.In addition, heat collectors use sunlight as heat energy, and use media such as water or oil. is absorbed by heat and extracted.
Solar cells that use light energy and concentrators that use thermal energy have been developed and put into practical use as independent devices. Furthermore, as a known technology related to such solar energy-hybrid solar panels, which are used in combination as a hybrid yl-panel, there is a flat panel type panel as disclosed in Japanese Patent Publication No. 5,664,474, etc. Optical power source and heat collection hybrid 71, created by attaching solar cells to a heating device.
There are devices, etc.

<<Problem to be solved by the invention>> However, although the heat collector described in the above publication uses Al, which is inexpensive and has good conductivity, it is difficult to use polypropylene or polyethylene, etc., which has better heat collecting properties than Al, as the heat collector. However, if solar cells could be bonded onto it to form a hybrid panel, it would be possible to create a hybrid panel, but it has not yet been put to practical use due to the bonding properties of the two. The reason for this is that there was no good way to connect solar cells to air heaters made of polypropylene or polyethylene. In view of this, the present invention was made with the aim of improving the conventional technology by providing a manufacturing method for a solar energy hybrid panel that makes it possible to bond the two. (Means for Solving the Problems) In order to achieve the above object, the claimed product σ1 of the present invention was fabricated using a pheasant-adhesive resin such as polypropylene or polyethylene! & Applying a resin agent made from a modified chlorinated resin on the heating device, and then bonding the solar cell with an adhesive having elasticity.
The adhesive having elasticity is characterized by being silicone, polyurethane, polyvinyl butyral, ethylene vinyl acetate, etc. 《Example》 Hereinafter, the present invention will be described with reference to the example shown in Figs. 1 and 2. I will explain. The manufacturing method of the solar energy hybrid 71 panel according to the present invention is as shown in the cross-sectional view in FIG. After degreasing the top of the heating device 1, a modified chlorinated resin paint is applied using a brush, roller, spray, etc. to form a coating film 2. In this case, the composition of the paint resin used is as shown in Table 1.6 Table 1 (Significant %) After the paint film 2 has dried, an elastic adhesive 3 such as silicone-based elastic adhesive 3 is used. Connect battery 4.
Furthermore, the adhesion condition can be further improved by lightly roughening the top of the air heater 1 with sandpaper or the like before applying the modified chlorinated resin paint. Note that water is circulated within the frame of the heat collector l as a heat medium.

By applying the modified chlorinated resin to the surface of the heat collector 1 in this way, a surface that can be bonded with an adhesive is formed, allowing it to be bonded to a solar cell.5Also, the adhesive may be a silicone resin or the like. By doing so, it is possible to absorb the difference in distortion due to thermal expansion between the heat collector 1 and the solar cell 4 due to temperature changes.
This prevents problems such as cranking. FIG. 2 shows an embodiment of a solar energy hybrid 1~panel using the heat collector 1 described above, in which a panel in which the solar cell 4 and the heat collector 1 are bonded by the method described above is placed on the heat insulating material 5 in the case 7. Install it. After that, a translucent front cover 6 is placed to form a solar energy hybrid panel. In the figure, 8 is a heat medium flow path. In this case, any type of solar cell, crystalline or amorphous, can be applied, and the effect will not change even if polyurethane adhesives, polyvinyl butyral, ethylene vinyl acetate, etc. are used in place of silicone adhesives. The above examples show the case of polypropylene, but the same applies to heat collectors made of polyethylene. However, there were no problems such as shifting, falling, or cracking of the solar cells.6 (Effects of the Invention) As explained above, the present invention provides modified chloride resin paint that can be applied to a brush,
Common methods such as roller or spray do not require an applicator, so costs can be reduced.7 Furthermore, quality control is also easier because there is no change in adhesive strength due to the thickness of the coating, and therefore heat collection is possible. The device and solar cells can be easily connected.

[Brief Description of the Drawings] Fig. 1 is a sectional view showing the basic structure of a solar energy hybrid panel according to the present invention, and Fig. 2 is a solar energy hybrid panel showing an embodiment using the basic structure of Fig. 1. 71... Heat collector, 2... Modified chlorinated resin coating film, 3... Elastic adhesive, 4.
...Solar cell, 5...Insulating material, 6...Translucent front cover, 7...Case, 8...Heat medium flow path, Applicant: Komatsu Ltd.

Claims (1)

[Claims] 1) A resin agent made from a modified chlorinated resin is applied onto a heat collector made using a hard-to-adhesive resin such as polypropylene or polyethylene, and then an elastic adhesive is applied to the heat collector. A method for manufacturing a solar energy hybrid panel characterized by bonding solar cells. 2) The method for manufacturing a solar energy hybrid panel according to claim 1, wherein the elastic adhesive is silicone, polyurethane, polyvinyl butyral, ethylene vinyl acetate, or the like.