JPS6013012Y2 - Bottom plate attachment device for solar heat collector - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for attaching a bottom plate to a solar heat collector.

. Conventionally, in solar heat collectors, the peripheral edge of the bottom plate has been attached to the lower edge of the picture frame with screws.

However, with this method, drilling the screw holes and fixing the screws is troublesome, and the processing costs are high.
Since there is a risk of rain and ice infiltrating through the screw holes, it is necessary to seal the parts where the screws are fixed, resulting in high costs.

In addition, conventionally, the aluminum frame and bottom plate are mostly connected using stainless steel screws due to their strength, but since there is a metal potential difference in such a combination of dissimilar metals, if rainwater etc. infiltrates into the screwed part, So-called electrolytic corrosion occurs, which weakens the strength of tightening screws and lowers the strength of attaching the bottom plate.

In particular, there is a problem in that tapping screws and the like are susceptible to electrolytic corrosion.

The object of this invention is to provide a bottom plate attachment device for a solar heat collector that solves the above-mentioned problems.

This invention will be explained below based on embodiments shown in the drawings.

In this specification, top and bottom, front and back, and left and right refer to the second
Based on the figure, upper means the upper side of Figure 2, and lower means the lower side of the same)
, "front" refers to the left side of the drawing, and "back" refers to the right side of the same drawing), and "left" refers to the back side of the sheet of drawing paper in the same drawing, and "right" refers to the front side of the same drawing sheet.

In the drawing, 1 is a solar heat collector, 2 is a frame made of extracted aluminum material installed in the shape of a picture frame around its periphery, and this is crossed by a lower horizontal wall 2a, an upper horizontal wall 2b, and a vertical wall 2c. It has an approximately U-shaped surface.

Reference numeral 3 denotes a bottom plate made of a metal plate that closes the lower surface of the frame 2, and 4 a bottom plate peripheral insertion portion having a substantially U-shaped cross section and opening inward, which is provided on the inner edge of the lower horizontal wall 2a of the frame 2. This consists of a lower horizontal part 4a provided to extend the lower horizontal wall 2a of the frame 2, an upper horizontal part 4b arranged parallel to this horizontal part 4ai, and a vertical part 4c connecting both. It is made up of.

Reference numeral 5 denotes a bottom plate insertion guide portion provided on the inner edge of the lower horizontal portion 4a and gradually sloping downward toward the inner side, and is intended to facilitate insertion of the peripheral edge portion of the bottom plate 3.

Reference numeral 6 denotes a bottom plate holding convex portion provided on the inner edge of the upper horizontal portion 4b in a downwardly projecting manner. have.

Reference numeral 7 denotes a space provided within the insertion portion 4, which is wider than the opening, so that the peripheral edge of the bottom plate 3 can easily fit therein.

A sealing material 8 is filled between the peripheral edge of the bottom plate 3 and the inclined guide portion 5.

10 is a transparent body that covers the upper opening of the frame 2; 11 is a transparent body pressing member; There is.

Reference numerals 13 and 14 denote gaskets arranged on both upper and lower sides of the peripheral edge of the transparent body 11, 15 a solar heat collecting plate, 16 a water pipe connected to this, and 17 a pair of front and rear pipes connecting the ends of the water pipe 16. A water supply pipe and a drain pipe (not shown) are connected to the right ends of these headers 17, respectively.

20 is a cover for the header 17, and 21 is a heat insulating material made of glass wool loaded on the bottom and circumferential sides of the solar heat collector 1.

. As described above, the device for mounting the bottom plate of the solar heat collector according to this invention has a lower horizontal portion 4a and an upper horizontal portion 4b at the lower edge of the frame 2, and a cross section that opens inward. A substantially F-shaped bottom plate periphery insertion portion 4 is provided, and the bottom plate 3
When the peripheral edge of the bottom plate 3 is inserted into the space 7 of the insertion part 4 and the upper surface of the peripheral edge of the bottom plate 3 is brought into contact with the presser convex part 6, the gap between the peripheral edge of the bottom plate 3 and the inclined guide part 5 is Since the bottom plate 3 is filled with sealing material 8, it is possible to attach the bottom plate 3 to the frame 2 in a strong and liquid-tight manner without using any screws, and there is no need for screw fixing as in the conventional case. Therefore, the drilling work and screwing work can be omitted□
is available, and there is no need to pay for power.

Further, a bottom plate insertion guide portion 5 is provided on the inner edge of the lower horizontal portion 4b of the insertion portion 4, and the bottom plate insertion guide portion 5 is gradually inclined downward toward the inside, and a space portion 7 wider than the opening is provided within the insertion portion 4. Therefore, the peripheral portion of the bottom plate 3 can be easily inserted into the insertion portion 4, and the bottom plate 3 can be attached very easily.

Furthermore, since the space 7 is wider than the opening, when the frame 2 is made of, for example, an aluminum extruded material, the extrusion process can be easily carried out.

Furthermore, since no screws are used, it is possible to prevent electrolytic corrosion from occurring due to the potential difference between dissimilar metals, which occurs when the aluminum frame 2 and bottom plate 3 are connected using stainless steel screws as in the past. play.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; FIG. 1 is a schematic perspective view of a solar heat collector, and FIG. 2 is an enlarged sectional view taken along line 1--n in FIG. 1. 1... Solar heat collector, 2... Frame, 2a
...Lower horizontal wall, 3...Bottom plate, 4...
...Bottom plate peripheral insertion part, 4a...Lower horizontal part, 4b...Top horizontal part, 5...Bottom plate guide part1.・6...Bottom plate presser convex part, 7...
・・・Space part, end...Sealing material.

Claims (1)

[Scope of utility model registration request] A bottom plate peripheral edge insertion portion 4 having a lower horizontal portion 4a and an upper horizontal portion 4b and having a substantially U-shaped cross section and opening inward is provided at the lower edge of the frame 2. A bottom plate insertion guide portion 5 that is gradually inclined downward toward the inside is provided on the inner edge of the lower horizontal portion 4a, and the upper horizontal portion 4
A bottom plate holding convex portion 6 is provided on the inner edge of b in a downwardly protruding manner, and a space 7 wider than the opening is provided in the insertion portion 4, so that the peripheral edge of the bottom plate 3 is placed inside the space 7 of the insertion portion 4. A bottom plate in a solar heat collector, which is inserted into the solar heat collector, the upper surface of the peripheral edge of the bottom plate 3 is brought into contact with the presser convex part 6, and a sealing material 8 is filled between the peripheral edge of the bottom plate 3 and the inclined guide part 5. Installation is a device.