JPH0228367Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvements in solar heat collectors.

Conventionally, flat plate solar heat collectors have one end sealed and a heat collection box body A, as shown in Figures 1, 2 and 4.
header pipes 1, 1 arranged in a pair on the left and right inside;
As a branch pipe of this header pipe 1, a header pipe 1,
1, a large number of heat collecting pipes 2 are connected in a direction perpendicular to the header pipe 1, and each of the heat collecting pipes 2
The heat collecting fins 3 covered on each heat collecting pipe so as to cover the heat insulating material 4 laid inside the heat collecting box A
The heat collecting box is placed on top of the box and sealed with a transparent glass plate 5 from above. An open header pipe 1 protrudes from the heat collection box A, and an outgoing pipe or a return pipe is connected to this protruding header pipe 1, and the heat medium heated by the solar heat collector is transferred to the outgoing pipe and the return pipe. The heat is circulated through the tubes and stored in a heat storage tank. In addition, when a large number of heat collectors are installed, the header pipes are connected to the header pipes of adjacent solar heat collectors via connecting pipes.

On the other hand, an L-shaped angle 5 as shown in FIG. 3 is attached to a corner of the inner surface of the heat collection box 1. The corners of box A are being fixed and sealed. This angle 5 is screwed to the heat collection box A through screw holes drilled in both pieces, but an insertion hole for inserting the header pipe 1 is drilled near the angle 5 of this box A. The header pipe 1 is inserted through this insertion port.

In such a flat plate type solar heat collector, before the installation work, an external force is applied to the header tube 1 protruding from the box body A due to vibration, impact, etc., or due to expansion and contraction due to heat, the header tube 1 is As shown in the figure, since it is not particularly firmly fixed to the box A, the heat collector consisting of the header pipe 1, the heat collecting pipe 2, and the heat collecting fin 3 is deviated from the specified position in the box A, and the heat collector is not fixed firmly to the box A. The protruding length of the pipe 1 may change, making it impossible to connect the pipes, or the heat collection fins 3 may collide with the box and become deformed. Further, after the heat collector is installed, there are inconveniences such as the connection between the header pipe 1 and the piping becoming disconnected.

As a method for preventing such displacement of the header tube, a method has been proposed in Japanese Utility Model Application Laid-Open No. 54-71734. This is done by providing a notch that opens upward in the part of the box body through which the header tube is inserted, and the header tube has ribs that protrude into contact with the inside and outside of this notch, and the header tube is fitted into the notch. By doing so, the contact between the rib of the header pipe and the notch of the box body is used to prevent the header pipe and the heat collector connected to the header pipe from shifting.

However, in this conventional type, the header pipe fits directly into the notch formed in the box body, so the header pipe has no flexibility at all, and if the header pipe stretches during heat collection, unreasonable force is applied to the header pipe. This may cause the header pipe to crack and cause water to leak.

The present invention has been developed in view of the above points, and is intended to prevent the header tube from shifting and to prevent excessive force from being applied to the header tube even when the header is elongated during heat collection. be.

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

The solar heat collector according to the embodiment of the present invention is shown in Fig. 7 and 1.
As shown in Figure 0, corner angles 6 and 9 are provided at the internal corners of the heat collection box A formed by butting aluminum shapes to fix the aluminum shapes that are butted together.
The header pipe 1, the heat collecting pipe 2 (see Fig. 1), and the heat collecting fin 3 (first
(see figure) and leads the header pipe 1 out of the heat collection box A from near the corner of the heat collection box A, the support pieces 7 supporting the header pipe 1 at the corner angles 6 and 9, The support pieces 7 and 8 are connected in a cantilevered manner from the corner angles 6 and 9, and the support pieces 7 and 8 are arranged inward from the inner surface of the heat collection box A. The heat collection box A
A gap B is provided between the inner surface and the support pieces 7, 8, and a locking portion 10 is formed by a bulge on the header pipe 1 at a position close to the inner surface of the support pieces 7, 8.
11 is provided, and these locking parts 10, 11 are connected to support pieces 7,
It is formed by coming into contact with the inner surface side of 8.

As shown in FIG. 5, the corner angle 6 is formed into an L-shaped cross section, and one piece 6a
The upper part is cut out to form an L-shape. The support piece 7 is connected to the upper side surface 6b of one piece 6a of the corner angle 6 in parallel to the piece 6a and recessed one step. A circular notch 7c is provided to form a substantially horseshoe shape.

Similarly, the corner angle 9 is also formed into an L-shaped cross section, as shown in FIG.
The upper part of a is cut out to form an L-shape. The supporting piece 8 is attached to the upper side surface 9b of one piece 9a of this corner angle 9.
The supporting piece 8 is connected in a recessed state in parallel with the support piece 8.
It is formed in a substantially straddle shape.

As shown in FIG. 7, the corner angles 6 and 9 in which such support pieces 7 and 8 are connected are connected to the heat collection box A by making these corner angles 6 and 9 into a pair.
A gap B is formed between the inner surface of the box body A and the support pieces 7 and 8, and a header is provided in the notches 7c and 8c of the support pieces 7 and 8. The tube 1 will be supported.

On the other hand, a locking portion 1 formed on the header pipe 1
0 and 11 are header pipes 10 and 1, as shown in FIG. 8 and FIG. 9, which is an enlarged view of the main part of FIG.
1 is formed to protrude in an annular shape by bulging, and the locking portions 10 and 11 are in contact with the inner surfaces of the support pieces 7 and 8, respectively, while being supported by the support pieces 7 and 8. It is formed in These locking portions 10 and 11 contact the support pieces 7 and 8 when the header tube 1 is placed in the heat collection box A as shown in FIGS. 7 and 10, so that the header tube 1 Prevents axial movement.

In addition, in FIG. 10a, 12 is a gasket for sealing, and the above-mentioned locking parts 10, 11,
It is sandwiched between the inner surfaces of the support pieces 7 and 8.

Now, in the solar heat collector as mentioned above,
The header pipe 1 includes the locking parts 10 and 11, the support piece 7,
Since the header tube 1 is held in place by contact with the inner surface of the header tube 8, the header tube 1 will not be displaced from the specified position even if an axial force is applied to the header tube 1.

In addition, the header pipe 1 is supported in a cantilevered manner by the support pieces 7 and 8, and is recessed one step to form a gap B between the header tube 1 and the heat collection box A. Even if the tube 1 expands, the expansion of the header tube 1 is absorbed by the elastic deformation of the support pieces 7 and 8. Therefore, if heat is collected using a solar heat collector as described above, high-temperature water will flow through the header tube 1 due to sunlight, and this heating will cause the header tube 1 to expand and move in the axial direction. However, this elongation of the header tube 1 is absorbed by the elastic deformation of the support pieces 7 and 8, so the header tube 1 is firmly held between the support pieces 7 and 8. No excessive force is applied while being held, and problems such as the header pipe 1 cracking and leaking water do not occur.

As described above, the present invention provides corner angles 6 and 9 at the internal corners of the heat collection box A formed by butting aluminum shapes to fix and reinforce the aluminum shapes that are butted together, and In the case where the header pipe 1, the heat collecting pipe 2, and the heat collecting fin 3 are housed and the header pipe 1 is guided out of the heat collecting box A from near the corner of the heat collecting box A, the corner angles 6 and 9 are Support pieces 7 and 8 that support the header pipe 1 are provided in a connected manner, and these support pieces 7 and 8 are elastically deformable, and are connected in a cantilevered manner from the corner angles 6 and 9. 7 and 8 are arranged inward from the inner surface of the heat collection box A, and the support pieces 7 and 8 are connected to the inner surface of the heat collection box A and the support pieces 7 and 8.
A locking portion 10 is formed by a bulge on the header tube 1 at a position close to the inner surface of the support pieces 7 and 8, with a gap B provided between the support pieces 7 and 8.
11 is provided, and these locking parts 10, 11 are connected to support pieces 7,
This is a solar heat collector that is in contact with the inner surface of the solar heat collector.

Therefore, the locking portions 10 and 11 of the header pipe 1
are in contact with the inner surfaces of the support pieces 7 and 8 connected to the corner angles 6 and 9, and the header pipe 1
Since the header tube 1 is sandwiched between the support pieces 7 and 8, the corner angles 6 and 9 connecting the support pieces 7 and 8 can be used to prevent the header tube 1 from shifting in the axial direction. It is possible to eliminate problems caused by displacement of the header tube 1 even when a force of .

Further, the supporting pieces 7 and 8 are connected in a cantilevered manner from the corner angles 6 and 9, and the supporting pieces 7 and 8 are arranged inwardly from the inner surface of the box A, so that the supporting pieces 7 and 8 are connected to the inner surface of the box A and the supporting pieces. 7 and 8, so even if the header pipe 1 expands in the axial direction due to heat collection, the support pieces 7 and 8 elastically deform to absorb this expansion. be able to. For this reason,
No excessive force is applied to the header pipe, and problems such as the header pipe cracking and causing water leakage can be eliminated.

[Brief explanation of the drawing]

Figure 1 is a plan view of a solar heat collector, Figure 2 is a perspective view of a solar heat collector, Figure 3 is a perspective view of a conventional corner angle, and Figure 4 is a cross-section of main parts of a conventional solar heat collector. Figure 5 is a perspective view of the corner angle used in the present invention, Figure 6 is a perspective view of the corner angle used in the present invention, Figure 7 is an explanatory diagram of the main parts of the solar heat collector of the embodiment of the present invention, Figure 8 is an explanatory diagram of the main parts of the header tube used in the present invention, and Figure 9 is A of Figure 8.
FIGS. 10a, 10b and 10c are enlarged views of main parts of a solar collector according to an embodiment of the present invention. 1: Header pipe, A: Heat collection box, 6, 9: Corner angle, 7, 8: Support piece, 10, 11: Rib.

Claims (1)

[Scope of claim for utility model registration] Corner angles are provided at the internal corners of a heat collection box body formed by butting aluminum shapes to fix and reinforce the aluminum shapes that are butted together,
In this heat collection box, a header pipe, a heat collection pipe, and a heat collection fin are housed inside the heat collection box, and the header pipe is guided out of the heat collection box from near the corner of the heat collection box. This support piece is elastically deformable and is connected in a cantilevered manner from a corner angle, and this support piece is placed inward from the inner surface of the heat collection box. A gap is provided between the inner surface of the heat collection box body and the support piece, and a locking portion formed by a bulge is provided on the header pipe at a position close to the inner surface of the support piece, and this locking portion A solar heat collector consisting of a support piece that is in contact with the inner surface of the support piece.