JPH045965Y2 - - Google Patents

Description

[Detailed description of the invention] <Technical field> The present invention relates to a solar heat collector, and in particular to measures against snow damage.

<Prior Art> Fig. 2 shows a schematic diagram of a conventional solar collector. As shown in the figure, a heat collector generally consists of a transparent body 1 such as glass that allows sunlight to pass through, an outer box 2 made of an aluminum frame or steel plate, and a heat collector 3 that absorbs sunlight and the transparent body fixed to the outer box. It consists of a presser frame 4.

Heat collectors are usually installed on the roof, but in particular,
In snowy areas, as shown in Figure 3, snowfall7
Accidents are likely to occur in which the heat collector or the heat collector frame is deformed or damaged due to the load caused by the heat collector. This is not simply because the snow accumulates on the transparent body 1, but once the snow accumulates, it turns into water and freezes when it touches the presser frame 4, which has cooled down to the outside temperature, and this ice and snow combine. This is because the frozen layer 6 becomes an obstacle and the snow 7 that accumulates on the heat collector does not fall off one by one, but rather accumulates in a considerable amount and then finally slides down.

<Purpose> In view of the above points, an object of the present invention is to prevent the formation of the frozen layer 6 and facilitate snowfall.

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

In addition, the same parts as before are given the same symbols,
The explanation will be omitted.

FIG. 1 is an enlarged side sectional view of a main part of an embodiment of the present invention.

In FIG. 1, 8 is a film that covers the upper surface of the transparent body 1 and the upper surface of the presser frame 4.

The film 8 is, for example, a transparent Tetron film sheet, and the outer surface is treated to be water repellent, and the back surface is coated with an adhesive.
A material with extremely high transparency in the visible light range and an absorption edge in the far infrared region is used.

The other configurations are the same as before.

Therefore, by pasting the film 8 on the transparent plate 1 and the upper surface of the presser frame 4, some of the snow that has fallen on the film 8 portion on the transparent body 1 melts into water, and the film 8 portion on the presser frame 4 melts into water. reach. At this time, the presser frame 4 has been cooled down to the outside temperature as described above, but
Since the presser frame 4 is covered with the film 8, the user does not directly touch the presser frame 4.

Therefore, since the film 8 has a certain degree of heat insulating property, the snow that melts on the holding frame 4 does not freeze and falls directly from the lower end of the heat collector.

Therefore, since no frozen layer is formed at the bottom of the heat collector, the snow on the transparent plate will slide down one by one, causing the transparent plate 1 to crack or the presser frame to be torn off by the force of the snow falling. Snow damage such as this can be prevented.

Furthermore, the effect of strengthening the transparent plate 1 to some extent by pasting the film 8 can be expected.

Incidentally, since the film 8 is simply pasted on, it is not only easy to install during the manufacturing process of the heat collector, but also extremely easy to install on existing heat collectors. I can do it.

Further, the film 8 may be placed only on the presser frame 8.

<Effects> According to the present invention, a solar heat collector is provided in which a transparent plate is placed on the top surface of a box body, and the periphery of this transparent plate is pressed and fixed with a metal frame material. In cases where the box body is installed at an angle with one side facing downwards, a transparent film is provided to cover at least the transparent plate located below the box body and the upper surface of the frame material, so that water that melts on the transparent plate is removed. Even if snow flows down on the slanted transparent plate or snow that falls on the transparent plate slides down on the slanted transparent plate, it will flow down and slide down on the transparent film without touching the lower frame material of the box. Become.

Therefore, it is possible to prevent the formation of a frozen layer that occurs when the water or snow comes into contact with the frame material due to flowing down or sliding down, and also eliminates the possibility of getting caught on the frame material. Snow on the box body can be dropped smoothly.

[Brief explanation of the drawing]

Figure 1 is an enlarged sectional view of the main parts of the embodiment of the present invention, Figure 2
The figure is a perspective view of a conventional heat collector, and FIG. 3 is an enlarged sectional view of the same essential parts. 1... Transparent plate, 2... Box body, 4... Frame body, 6...
...Frozen layer, 7...Snowfall, 8...Film.

Claims (1)

[Scope of Claim for Utility Model Registration] A solar heat collector consisting of a transparent plate placed on the top surface of a box body and a metal frame material press-fixed around the transparent plate, one side of the box body. What is claimed is: 1. A solar heat collector which is installed with a box arranged downward and a box body inclined, characterized in that a transparent film is provided to cover at least the upper surface of a transparent plate and a frame material located below the box body.