JPS5825230Y2 - solar heat collector plate - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a solar heat collecting plate, and more particularly to a solar heat collecting plate in which a heat absorbing water pipe is held by a heat collecting panel.

A groove that matches the outer diameter of the heat-absorbing water conduit is formed in a part of the heat collection panel made of aluminum, a heat-absorbing water conduit made of steel pipe is fitted into this groove, and a part of this pipe is crushed to collect the heat-absorbing water conduit. Solar heat collectors mounted on thermal panels are already known.

In this type of solar heat collection board, the heat collection panel and the heat absorption water pipe remain integrated as is, and there is no relative movement between the two, but this is not the original purpose of the solar heat collection board. During use, the heat collection panel (made of aluminum) is exposed to temperatures between room temperature and 200℃, and the heat-absorbing water conduit pipes (made of copper) are exposed to temperatures between room temperature and 90℃. Due to the difference in linear expansion coefficient between the two, a relative movement occurs between the two, and according to experiments, a shift of several tens of millimeters may occur over a six-month period including summer.

The inventor of the present invention has conducted intensive studies to effectively prevent the relative movement between the heat collection panel and the heat-absorbing water pipes caused by the reception of solar heat, and has arrived at the present invention after conducting various experiments.

That is, in the present invention, a heat-absorbing water conduit is held by a heat collecting panel, a stepped portion is provided in the endothermic water conduit on the back side of the holding portion so that it is almost flush with the heat collecting panel, and a splint plate is installed at the stepped portion. This solar heat collecting plate is characterized in that it is made by fixing over a heat collecting panel.

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view, and numeral 1 denotes a heat collecting panel made of an aluminum plate, with grooves 2 formed in a part thereof.

Reference numeral 3 denotes a heat-absorbing water conduit pipe made of steel pipe, which is connected to the groove 2 of the heat collecting panel 1.
It is embedded in and held.

A stepped portion 5 is provided on the heat-absorbing water conduit pipe 3 on the back side of the holding portion.

This stepped portion 5 is formed by fitting the endothermic water conduit 3 into the groove 2 and then pressing the exposed portion of the endothermic water conduit 3.

This pressing can increase the fitting force between the heat collecting panel 1 and the heat absorbing water pipe 3.

2 is a cross section taken along the line AA in FIG. 1, and FIG. 3 is a cross section taken along the line BB in FIG. 1, and the heat collecting panel 1 and the heat absorption water conduit 3 in the holding portion are substantially flush with each other.

At the stepped portion 5, the splint 4 is fixed across both wings of the heat collecting panel 1 by a joint portion 6.

As a method for forming the joint portion 6, clinching (see Japanese Patent Publication No. 53-21551), mechanical joining methods such as riveting, welding methods such as ultrasonic welding, spot welding, and other joining methods are used.

In particular, when mechanical bonding or ultrasonic welding is used, the material of the splint plate 4 is not limited to aluminum, and stainless steel, steel, etc. can also be used.

In the present invention, it is only necessary to make only the part of the heat collection water pipe where the splint is applied flush with the heat collection panel.

The present invention is as described above, and since the heat collection conduit pipe is fixed to the heat collection panel by splints at the part where the heat collection conduit pipe is almost flush with the heat collection panel, the heat collection panel is attached to the heat collection conduit pipe with its axis. This prevents it from rotating or falling off.

In addition, the stepped portion 5 prevents relative movement between the heat collection conduit pipe and the heat collection panel, and prevents heat transfer due to poor adhesion caused by weakening of the fitting force as both members expand and contract repeatedly during long-term use. prevent a decline in

Furthermore, poor appearance due to misalignment of both members due to the above-mentioned relative movement is also prevented.

Therefore, according to the present invention, a solar heat collecting plate that can be used in practical use for a long period of time can be obtained.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is a sectional view taken along line BB in FIG. 1... Heat collection panel, 2... Groove, 3...
... Endothermic water conduit pipe, 4 ... Splinter plate, 5 ...
... step part, 6... joint part.

Claims (1)

[Scope of utility model registration request] The heat-absorbing water pipe is held by a heat collecting panel, a step is provided in the heat-absorbing water pipe on the back side of the holding part so that it is almost flush with the heat collecting panel, and a splint is placed over the heat collecting panel at the step. A solar heat collecting plate that is fixed in place.