JPS6326556B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure that prevents ice formation on the surface of a solar cell panel and also prevents snow from accumulating on the surface of a solar cell panel.

In recent years, it has been said that oil resources are decreasing, and there is a corresponding social demand for alternative energy.In addition, solar battery power sources have been adopted in wireless communication relay equipment, etc. due to improvements in device reliability and energy savings. At the same time, the demand for long-term maintenance-free maintenance is increasing. However, such wireless relay stations and the like are very likely to be installed in high places with good geographical visibility or in hilly areas. Therefore, in cold regions or during the winter, snow adheres to the surface of the solar panel of a solar battery power system, which significantly reduces the power generation efficiency of the solar battery.
This results in an uneconomical system in which the amount of storage batteries and solar cells in the power supply system must be increased.

In view of these problems, the present invention aims to provide a structure that prevents ice from forming on the surface of a solar cell panel and thereby minimizes the adhesion of snowfall. In order to receive solar energy most efficiently, the solar panel surface should be installed facing due south in the Northern Hemisphere, and the solar panel surface should be installed closer to the direction of the sun in winter, when there is generally less solar energy. To improve the efficiency of the system, the installation angle of the panel surface is larger than the latitude of the installation location, and the higher the latitude where snowfall is, the steeper the slope of the panel surface becomes, making it difficult for snow to adhere to the panel surface. It is easy to fall off, and since the installation faces south so that it can receive solar energy most efficiently, conditions are good for melting the snow that has adhered to it. If the phenomenon of snow accreting again due to an increase in temperature or solar radiation that causes it to melt and then fall off due to a drop in temperature or snowfall is repeated, the area where the panel surface contacts the snow will freeze and the snow will continue to accumulate for a long time. When the solar panel surface is tilted to some extent, freezing does not start halfway down the panel surface, but rather starts from the bottom of the panel surface where water droplets stop moving, and gradually spreads out. This was done with a focus on the fact that many things start where they stop. The feature of the present invention is that a surface member is provided which extends downward and has its upper surface closely flush with the same surface so as to prevent water from accumulating at the lower edge of the solar cell panel. be.

Embodiments of the present invention will be described below with reference to the drawings.

The drawing is a schematic perspective view of the main parts of the solar cell panel device according to the present invention, in which the solar cell panel 1 and the mounting frame 2 are mounted on the same plane, and the mount is tilted toward the solar surface. It is fixed at 4. The seams of each solar cell panel and the boundary with the mounting frame 2 are caulked and smoothed with a material having excellent weather resistance, such as silicone rubber, to prevent melted snow from accumulating. Mounting frame 2
To prevent water from accumulating further from the lower edge, extension plates are provided in close contact with each other in the form of extending downwards on the same plane, hanging vertically, and the lower edge is bent to serve as reinforcement and to allow water to easily fall. ing. This extension plate 3
It is more preferable to coat the surface with a material that has poor wettability with water, such as Teflon (trade name), or to perform Taflam treatment, which has a similar effect.

When the snow melts in the above conditions and flows down along the panel, since the surface is smooth, it is transmitted directly to the extension plate 3 connected to the lower edge and flows down, so snow or water droplets will not fall on the panel surface. Almost nothing remains. Even if freezing occurs here, the water droplets that should freeze are at the bottom end of the extension plate, so even if it starts freezing here and expands, it will take a considerable amount of time to make sure that it does not reach the solar panel surface. It takes. Therefore, it is difficult for snow to adhere to the panels, allowing light energy to pass through the panel surface and generating electricity effectively.

As explained above, the present invention minimizes the number of spots where water droplets stop when the solar panel is mounted, provides an extension of the flow of water droplets at the bottom of the panel, moves the starting point of freezing away from the solar panel, and removes the starting point of freezing from the solar panel. By applying surface treatment to the areas where the panels become wettable with water to create a structure that makes it difficult for ice to form, the panel surface is less likely to be blocked by snow accumulation, etc.
This shows an excellent effect in increasing power generation efficiency. Note that this is not limited to the embodiment, and for example, in preparation for hail, the entire surface of the solar cell panel may be covered with a transparent plate such as a glass plate or an acrylic resin plate, and the surface member may be extended on the same surface as the lower edge of the transparent plate. The lower end of the extension plate may not be vertical but may be sloped as appropriate, and it is more preferable if the lower edge is sloped with respect to the horizontal or has a shape such as a V-shape that allows water droplets to easily fall.

[Brief explanation of the drawing]

The drawing shows a schematic perspective view of main parts of a solar cell panel device according to the present invention. In the figure, 1 is a solar cell panel, 2 is a mounting frame, 3 is an extension plate, and 4 is a pedestal.

Claims (1)

[Claims] 1. In a solar cell panel installed at an angle of inclination such that at least water droplets flow down the surface in a natural state, the top surface of the solar cell panel is continuously and closely flush with the same surface to prevent water from accumulating at the lower edge of the solar cell panel. A solar cell panel surface structure characterized by being provided with a surface member extending downward.