JPS6237084Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a flat plate type heat collector equipped with a header cover that covers a header pipe and heat collecting fins.

As shown in FIG. 1, a flat plate type heat collector includes a large number of heat collecting pipes arranged in a direction perpendicular to the header pipes 1 so as to communicate with each other a pair of header pipes 1, 1 each having one end sealed. 2 are connected to each other, and a heat collecting fin 3 is disposed so as to cover the heat collecting pipe 2 from the upper surface. This heat collecting fin 3 is A- in FIG.
As shown in FIG. 2, which is a cross-sectional view of A′, a substantially circular fitting portion 4 is fitted into each of the heat collecting pipes 2, and plate-shaped fins 5,
5 are connected. The upper surface of the heat collecting fin 3 is black-treated to absorb solar heat and transmit the solar heat to the heat medium passing through the heat collecting pipe 2 by thermal conduction. This absorbed solar heat is
The heat is stored in the heat storage tank via the header pipe 1 and the return pipe that communicates the heat collector with the heat storage tank.

In the above-mentioned flat plate heat collector, both ends of the joint between the header pipe 1 and the heat collection pipe 2 and the joint between the fins 5 are welded or otherwise brazed, so the joints are exposed. And it looks very bad. In addition, as shown in FIG.
and the header pipe 1 on which the heat collecting fins 3 are placed.
If the heat insulating material A is visible through the gap between the heat collecting fins 3 and the heat collecting fins 3, it will look bad. For this reason, a header cover 7 made of sheet metal is placed to cover the header pipe 1 and the brazed joint. As shown in FIG. 4, this header cover 7 is bent into a substantially U-shape, and is inserted from the side of the header pipe 1 and clamped onto the header pipe 1. The upper part 7a of the U-shaped cover 7 abuts to cover the end of the heat dissipating fin 3, and a bent piece 8 that engages with the heat collecting fin 3 projects laterally from the upper part 7a. Conventionally, in assembling a heat collector, the bending piece 8 is bent by hand for ease of assembly, so the bending piece 8 is bent into a substantially V-shape as shown in FIG. There was also an inconvenience in that the fins 5 also warped upward.

The present invention is intended to solve the above-mentioned drawbacks, and prevents deformation of the heat collecting fin by defining the bending shape by providing a notch in the bending piece. Examples will be described below with reference to the drawings.

Figure 5a and Figure 5, which is an enlarged view of part B of Figure 5a.
As shown in FIG. b, approximately semicircular notches 9 are cut out at the base and middle of both sides of the bent piece 8. Next, as shown in FIG. 7, the bent piece 8 is bent into a specified U-shape based on the notch 9.
The end of the heat collecting fin 3 is in contact with the lower side of the inner surface of the bent piece 8, and the header cover 7 locks the heat collecting fin 3 so that the heat collecting fin 3 and the upper part of the header cover 7 are kept parallel to each other. The header cover 7 is engaged with the heat collecting fin 3.

As described above, according to the present invention, the notches are provided in the bent pieces that protrude from both ends of the header cover and are attached to the heat collecting fins when bent, so even if bent by hand, it will always maintain the specified shape. Bend it to securely attach the header cover to the heat collection fin. Therefore, since the bent piece is always bent into a predetermined shape, the heat collecting fins are not warped and can be easily bent into the defined shape, improving workability.

[Brief explanation of the drawing]

Figure 1 is a plan view of the main parts of a flat plate type heat collector, Figure 2 is a sectional view of the main parts of a conventional flat plate type heat collector, Figure 3 is a sectional view of the main parts of a flat plate type heat collector, and Figure 4 5 is a perspective view of the main part of the header cover, FIGS. 5A and 5B are plan views of the main part of the header cover used in the present invention, and FIG. 6 is a sectional view of the main part of the flat plate type heat collector of the present invention. 1... Header pipe, 2... Heat collection pipe, 3...
Heat collection fin, 6... Heat collection box, 7... Header cover, 8... Bend piece, 9... Notch.

Claims (1)

[Claim for Utility Model Registration] In a flat type heat collector equipped with a header cover that covers the ends of the header pipe and the heat collecting fins, the header cover protrudes from both ends of the header cover and is bent to cover the heat collecting fins with the head cover. A flat plate type heat collector characterized by providing a notch in the bent piece to which it is attached.