JPS5844296Y2 - solar heat collector - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a solar heat collector.

As shown in FIG. 3, the conventional solar heat collector 31 includes a frame 32, a bottom plate 33 bottomed on the frame 32, a glass wool heat insulating material 34 placed on the bottom plate 33, and A heat collecting plate 35 provided on a heat insulating material 34 is provided.

The bottom plate 33 is a thin plate made of a stainless steel plate, a galvanized steel plate, or a PVC-coated steel plate.

However, in the heat collector 31, pinhole-like corrosion occurs in the bottom plate 33, and rainwater may infiltrate through the pinhole-shaped corrosion.

Therefore, there are problems with the corrosion resistance and durability of the heat collector 31.

Further, since the bottom plate 33 is thin and the heat insulating material 34 is also inferior in strength, there is a problem that it bends due to wind pressure.

In addition, since the heat insulating material 34 is made of glass wool, it has excellent heat resistance but does not have sufficient heat insulating properties.In order to obtain the required heat insulating properties, it is necessary to increase the thickness of the heat insulating material 34, and as a result, Another problem is that the thickness and weight of the heat collector 31 increase.

Furthermore, some conventional solar heat collectors have a frame and a bottom plate made integrally, but in this case, the above-mentioned heat collector 3
There is a problem similar to 1.

The purpose of this invention is to provide a solar heat collector that solves the above problems.

In this specification, inside refers to the direction surrounded by a frame,
Outside refers to the opposite direction.

This invention will be explained below with reference to the drawings.

1 and 2, the solar heat collector 1 according to this invention consists of a frame 2, a foamed resin heat insulating plate 3 covered on both sides with reinforcing plates 4 and housed within the frame 2, and a foamed resin A heat insulating material 5 made of a material other than foamed resin is placed on a resin heat insulating board 3 and housed in a frame 2, and a heat collecting board 6 is provided above the heat insulating material 5, and the frame 2 is connected to a vertical wall 7. , an upper horizontal wall 8 that is connected to the upper edge of the vertical wall 7 and protrudes inward, and an upper horizontal wall 8 that is connected to the lower edge of the vertical wall 7 through a groove 9 that opens upward inside the vertical wall 7 and extends in the longitudinal direction. The lower horizontal wall 10 projects inwardly.
and an intermediate horizontal wall 11 that protrudes inward from the inner surface of the vertical wall 7 above the lower horizontal wall 10. A drain port 12 is provided in the bottom wall 9a of the groove 9, and a foamed resin heat insulating board 3 is provided. The peripheral edge part of is fitted between the lower horizontal wall 10 and the intermediate horizontal wall 11.

The frame 2 is constructed by assembling four side members 2a made of extruded aluminum into a frame shape.

An internal enlarged groove 13 that opens upward and extends in the longitudinal direction is provided at the inner edge of the upper surface of the upper horizontal wall 8 of the frame 2, and the lower half of the gasket 14 is fitted into this internal enlarged groove 13.

The peripheral edge of the glass plate 15 is received by this gasket 14.

Further, a rising portion 16 extending in the longitudinal direction is provided at approximately the center of the inside and outside of the upper horizontal wall 8, and an inclined portion 17 that is continuous with the upper edge of this rising portion 16 and slopes upward and outward is provided, At the upper edge of this inclined portion 17, a horizontal portion 18 whose inner edge is directly above the rising portion 16 and whose liquid edge is directly above the vertical wall 7
is provided.

The upper surface of the upper horizontal wall 8 is covered with a glass temporary holding member 19 made of an extruded aluminum material and having a cross-sectional shape.

The glass plate holding member 19 includes a horizontal wall 20, a hanging wall 21 continuous to the outer edge of the horizontal wall 20, a retaining portion 22 protruding downward and provided at approximately the center of the inside and outside of the lower surface of the horizontal wall 20, and the horizontal wall 20. Gasket 2 is provided on the inner edge of the lower surface and on the lower surface.
4 is attached to the plate holding part 23.

In such a glass plate pressing member 19, the engaging portion 22 is attached to the frame 2.
The gasket 2 is placed over the upper surface of the upper horizontal wall 8 so as to engage with the inner edge of the horizontal portion 18 of the glass plate 15 .
4 and is held down by the plate holding part 23.

A groove 9 on the upper surface of the lower horizontal wall 10 is provided to protrude downward, and the inside of this groove 9 protrudes slightly upwards than the lower horizontal wall 10 to form a heat insulating plate abutting portion 25.

The heat insulating board 3 is made of foamed resin such as closed-cell rigid polyurethane and closed-cell rigid polystyrene.

As the reinforcing plate 4, one made of metal or synthetic resin is used.

The heat insulating board 3 is molded by injecting and foaming a foamed resin into a separately prepared foam molding frame, and then reinforcing boards 4 are joined to both sides thereof, or foamed resin is injected between two reinforcing boards 4. It is formed by foaming.

The circumferential surface of the heat insulating plate 3 is in contact with the contact portion 25, and a space is provided above the groove 9.

As the heat insulating material 5 made of a material other than foamed resin, one made of inorganic fibers such as glass wool and rock wool is used.

This heat insulating material 5 prevents heat from the heat collecting plate 6 from being transmitted to the heat insulating plate 3 and causing thermal deformation thereof.

The heat collecting plate 6 has a plurality of water pipes 26.

Both ends of the water pipe 26 are connected to a header 27 that extends through the frame 2 so as to communicate with the header 27 .

In this solar heat collector 1, even if pinhole-like corrosion occurs in the reinforcing plate 4 below the heat insulating plate 3, rainwater will not infiltrate into the heat collector 1 because the foamed resin is non-water absorbing. There isn't.

Furthermore, even if rainwater enters between the heat insulating board 3 and the lower horizontal wall 10, this rainwater will travel through the lower horizontal wall 9 and the abutting portion 25 and enter the groove 9, opening the bottom wall 9a of the groove 9. It is discharged to the outside from the drain port 12.

This solar heat collector 1 is assembled, for example, by the following method.

That is, first, the three side members 2a are assembled in a U-shape when viewed from above, and then the side members 2a assembled in this U-shape are assembled.
Three of the peripheral edges of the heat insulating board 3 are fitted between the lower horizontal wall 10 and the intermediate horizontal wall 11.

Next, another side member 2a is attached so that the remaining edge of the heat insulating plate 3 is connected to the lower horizontal wall 10 and the intermediate horizontal wall 11 of this side member 2a.
Assemble and fix it so that it fits between the

After that, the heat insulating material 5, the heat collecting plate 6 and the glass plate 15 are assembled.

The solar heat collector 1 according to this invention includes a frame 2, a foamed resin heat insulating board 3 whose both sides are covered with reinforcing plates 4 and is housed in the frame 2, and a foamed resin heat insulating board 3 that is placed on the foamed resin heat insulating board 3 and the frame 2. The frame 2 is provided with a heat insulating material 5 made of a material other than foamed resin and a heat collecting plate 6 provided above the heat insulating material 5, which is housed in a heat insulating material 5 made of a material other than foamed resin. An upper horizontal wall 8 that is continuous and protrudes inwardly, and a groove 9 that is continuous and protrudes inwardly through a groove 9 that opens upward inside the vertical wall 7 and extends in the longitudinal direction at the lower edge of the vertical wall 7. It has a horizontal wall 10 and an intermediate horizontal wall 11 that protrudes inward from the inner surface of the vertical wall 7 above the lower horizontal wall 10, and a drain port 12 is provided in the bottom wall 9a of the groove 9. Since the peripheral edge of the heat insulating plate 3 is fitted between the lower horizontal wall 10 and the intermediate horizontal wall 11, it is possible to prevent rainwater from entering into the heat collector 1 as described above. At the same time, even if rainwater enters, it can be drained to the outside.

Therefore, the corrosion resistance and durability of the heat collector 1 are improved.

Furthermore, since the heat insulating board 3 is made of foamed resin and both sides are covered with reinforcing plates 4, the insulating board 3 will not bend even under wind pressure.

In addition, the insulation properties of foamed resin are extremely superior to that of glass wool, so the thickness of the insulation board 3 must be considerably thinner than that of conventional solar heat collectors in order to obtain the same insulation properties as conventional solar collectors. Therefore, the thickness of the entire heat collector can be reduced, and the weight can also be reduced.

Since foamed resin has poor heat resistance, there is a risk that the grated yam may be deformed by the heat of the heat collecting plate 6.

According to this invention, since the heat insulating material 5 made of a material other than foamed resin is housed on the heat insulating board 3 and within the frame 2, this heat insulating material 5 allows the heat collecting plate 6 to be attached to the heat insulating board 3 made of foamed resin. It can prevent heat transfer.

Therefore, the heat insulating board 5 will not be deformed.

Further, since both sides of the heat insulating plate 3 are covered with the reinforcing plate 4, deformation due to secondary foaming of the foamed resin can be prevented.

Furthermore, assembly of this solar collector 1 is also extremely simple.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of this invention, and Fig. 2 is a plan view showing an embodiment of this invention.
FIG. 3 is an enlarged sectional view taken along the line II--II in the figure, and FIG. 3 is a sectional view corresponding to FIG. 2 showing a conventional example. 1...Solar heat collector, 2...Frame, 3.
...Foamed resin insulation board, 4...Reinforcement board,
5...Insulating material made of foamed resin injection material, 6
... Heat collection plate, 7 ... Vertical wall, 8 ...
...Upper horizontal wall, 9...Groove, 9a...
Bottom wall, 10...lower horizontal wall, 11...middle horizontal wall, 12...drainage [''.

Claims (1)

[Scope of utility model registration request] A frame 2, a foamed resin heat insulating board 3 covered on both sides with reinforcing plates 4 and housed within the frame 2, and this foamed resin heat insulating board 3.
The frame 2 is provided with a heat insulating material 5 made of a material other than foamed resin and housed in a frame 2 and a heat collecting plate 6 provided on the heat collecting plate 6. An upper horizontal wall 8 is connected to the upper edge and protrudes inward, and an upper horizontal wall 8 is connected to the lower edge of the vertical wall 7 through a groove 9 that opens upward inside the vertical wall 7 and extends in the longitudinal direction. It has a protruding lower horizontal wall 10 and an intermediate horizontal wall 11 that protrudes inward from the inner surface of the vertical wall 7 above the lower horizontal wall 10, and a drain port 12 is provided in the bottom wall 9a of the groove 9.
is provided, and the peripheral edge of the foamed resin heat insulating board 3 is connected to the lower horizontal wall 1.
0 and the intermediate horizontal wall 11.