JPS6237643A - solar heat collector - Google Patents

Abstract

PURPOSE:To discharge rain water in a box body smoothly by a method wherein a water passage hole is provided at the lower end of a frame at the eaves side of the box body while a heat collecting panel is formed by an upper part and a lower part which drops the rain water, flowing along the upper part, to the bottom surface of the box body. CONSTITUTION:When rain water invades into the box body 3 to breakage of a light permeating panel 2 or the like, the rain water, flowing along the upper surface of upper part 6 of the heat collecting body 9, drops to the bottom surface of the box body 3 through a gap (g) interposed between the lower end of the upper part 6 and the lower part 7, then is accelerated by flowing on a waterproof sheet 12 and is discharged to the outside of the box body 3 energetically through the water passage hole 5 provided on the frame 13. Accordingly, when much amount of the rain water invades into the box body 3, it will never be stagnated at the lower end of the box body 3 and is discharged smoothly whereby the damage of the solar heat collecting device 1 may be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a solar heat collecting device that can smoothly discharge rainwater that has entered the device due to damage to a transparent plate or the like.

[Background technology]

Solar heat collectors are known that use solar heat to heat the air, but water may accumulate inside due to rainwater leakage. Such internal water corrodes the equipment and reduces heat collection efficiency, so it needs to be drained out. However, if a drainage port is not easily installed, outside air may enter the interior. ! There will be a loss. Accordingly, the present applicant has proposed a drainage outlet in which a small hole with a valve body is provided at the lower end of the box body of the solar heat collector, according to the specification and drawings of Japanese Utility Model Application No. 1983-90414 filed by the present applicant. However, if a large amount of rainwater enters the inside of the box due to damage to the translucent plate, etc., the rainwater flowing rapidly over the top surface of the heat collector a comes into contact with the frame material of the box, as shown in Figure 4. As a result, the rainwater is not completely discharged from the small hole C and remains above the frame material. There is also a risk that accumulated rainwater may enter the house through ventilation pipes, etc.

[Purpose of the invention]

The present invention is based on providing a heat collector having an upper part and a lower part spaced apart inside the box, so that rainwater that enters the inside of the box can be smoothly drained, and the above-mentioned problems can be solved. The purpose is to provide a solar heat collection device that can solve the problem.

[Exhaustion of invention]

An embodiment of the present invention will be described below based on the drawings.

In Figs. 1 to 3, the solar heat collecting device includes a box 3 that is attached to a sloped roof A and whose upper part is covered with a transparent plate 2, and a water passage hole in a frame f3 at the lower end of the box 3 on the side of the eaves B. 5, and a heat collector 9 consisting of an upper part 6 extending from the ridge C side and a lower part 7 disposed at a gap g from the lower end of the upper part 6 is housed inside the box body 3. In this embodiment, the box body 2
The f! ! 4 It is built integrally with the pitched roof A.

The rafter F has its tip protruding between the ridgepole 21 and the nose purlin 22 and from the nose purlin 22, and the frame is passed over the roof board 1.
2 straddles the rafter F and is lowered on its entire surface,
A waterproof sheet 13 is laid on its upper surface. Since the waterproof sheet 13 is attached to the flat field board 12, the waterproof sheet 13 is attached to the flat field board 12.
can be reliably watertight.

The box body 2 consists of a vertical frame f1- extending from the ridgepole 21 to the vicinity of the nose purlin 22 on the rafter F, a horizontal frame f2 that hits the back of the upper end of the vertical frame r1, and the front end of the upper end. It is a box-shaped body with an open upper part surrounding the bottom formed by the roof board 12 with the frame material f3 on the side of the eaves B that connects the roof board 12, and the frame material f1 at the edge is placed on the roof board 12 in the same direction as the rafter F. By being placed on the frame f1, the vertical frame f1, and therefore the base box 2, are tilted at the same angle as the rafter F. Further, the lower end of the vertical frame f1 is interrupted near the upper part of the nose purlin 22, so that the shedding board 12 protrudes from the lower end of the base box 2 toward the eaves A side.

In addition, the lower end of the frame member r3 located at the eaves B (II) is cut out, for example, in a U-shape, over almost the entire surface between the vertical frame members "1 and f1, to provide a passageway leading to the outside. Water hole 5
are installed in parallel. Note that the notch thickness is set to 2 to 100 μm, preferably 4 to 6 μm. Therefore, the lower part of the water passage hole 5 is in contact with the waterproof sheet 13.

In this embodiment, a drainage plate 25 whose outer surface is covered with a drainage cover 24 is provided on the front surface of the frame member r3. The drainage cutting plate 25 is a long square piece with a slight height, and its lower surface is cut out to form a guide hole 26 of approximately the same size as the water passage hole 5, aligned with the water passage hole 5.

The drain cover 24 has an upper side 2 that covers the upper surface of the drain plate 25.
A hanging piece 24B hanging from the front side is provided on the front edge of 4A, and a rising piece 24G along the frame material r3 is provided on the rear edge, and at the lower end of the hanging piece 25B, the hanging piece 25B protrudes along the roof board 12 and its tip is directed downward. A folded protrusion 24D is formed. Note that the draining cover 24 is attached by fixing the floating rising piece 24C to the frame material f3 using stainless steel nails or the like.

Further, the upper end of a tile is placed on the projecting piece 24D of the draining cover 24, and a sealant is used between the hanging piece 24B and the upper edge to prevent rain.

The heat collector 9 consists of the upper part 6 and the lower part 7 as described above.

In this embodiment, the upper part 6 is a folded plate made of metal, synthetic resin plate, etc., and a trapezoidal bent part 17A protruding in a trapezoidal shape is interposed between the bottom pieces 16A. It extends from the vicinity of the vertical frame f1 located on side C, and is attached with a storage space interposed between it and the frame f3 of the eaves side character.

In this embodiment, the upper part 6 has two heat collectors 6A and 6B formed in substantially the same shape arranged side by side in an inclined direction, and is located above the upper surface of the upper end of the heat collector 6A located on the lower side. The lower ends of the heat collectors 6B are stacked in a roof tile shape,
Connected. A gap plate 19 is interposed between the bottom piece 16A and the waterproof sheet 13 to maintain a gap between the bottom piece 16A and the waterproof sheet 13.

The lower part 7 is a folded body similar to the upper part 6,
A bent part 17B is made to protrude between the bottom pieces 16B with the same pinch as the upper part 6. Further, the lower part 7 extends from the lower end of the upper part 6 to the vicinity of the frame member f3 on the eaves side, and has a small height separating piece 20 placed a on the top of the bent part 17A at the lower end of the upper part 6,
The bent portion 17B of the lower portion 7 is placed.

Therefore, a gap g is formed above the bottom piece 16A of the upper part 6 and the lower surface of the bottom piece 16B of the lower part 7.

In addition, in the lower part 7, similarly to the upper part G, a gap plate 19 is interposed to maintain a gap between the bottom piece 16B and the waterproof sheet 13.

Therefore, the rainwater flowing on the upper surface of the upper part 6 can fall to the bottom surface of the box body 3 through the gap g.

Note that inside the base box 2, a heat insulating material is interposed between the roofing board 12 and the waterproof sheet 13. In addition, both the upper part 6 and the lower part 7 of the heat collecting plate 9 have both side edges fixed to the vertical crosspieces r1 by means of fixing fittings 32.
It can be installed in close contact with the

The fixing fitting 32 is provided with a receiving piece 34 placed on the vertical crosspiece f1 at the lower end of the raised part 33 that is bent in a U-shape, and is bent along the side surface of the vertical crosspiece r1 at the outer edge thereof. A side piece 35 is provided, and the heat collecting plate 9 is sandwiched between the cough side piece 35 and the vertical crosspiece r1, so that the side edge thereof is protected from rain and is firmly fixed.

Note that the transparent plate 2 that covers the upper part of the frosting 3 and the fixing metal fittings 32
It is fixed using The i3 light plate 2 is, for example, a glass plate, and is placed on the receiving piece 34 with a watertight material interposed therebetween. The upper surface thereof is pressed and fixed by a presser metal fitting 36 having a U-shaped portion 40 having a material. Note that the upper and lower ends of the transparent plate 2 are connected to the upper and lower horizontal frame members r, respectively.
2. It is fixed using the holding plates 41 and 42 extending from f3 with a watertight material interposed therebetween.

An air pocket 10 is formed in the field board 12 below the lower end of the upper part 6.

The air population 10 has the shape of a flat shogi piece formed by combining the side and bottom sides of a 7-shaped side with a symmetrical slope with a relatively gentle slope on the top side, and extends almost the entire width of the field board 12. Form into length. Furthermore, a raised piece 44 extending upward along the periphery of the air pocket 10 is erected to prevent rainwater from flowing in. The rising piece 44 is provided with a leg piece 46 facing outward at its lower end, and by overlapping the waterproof sheet 13 on top of the leg piece 46 with a watertight material interposed therebetween, the standing piece 44 44 and the waterproof sheet 13 are made watertight. Note that a horizontally long chamber 47 surrounding the vent hole 45 is attached below the vent hole 45, and a conduit 49 leading to the room opens into the chamber 47.

Note that the roof board 12 is provided with an air outlet 11 having the same configuration as the air population 10 in its upper part, and a chamber 51 thereof.
It is connected to the room via a conduit 52 connected to the room.

However, in the solar heat collecting device 1, the air flowing in from the air population 10 is divided into an air flow flowing below the heat collecting plate 9 and an air flow flowing above the heat collecting body 9, bypassing the lower end of the lower part 7. By absorbing solar heat on the front and back sides of the heat collector 9, heating it, and discharging it into the room from the air outlet 11, heating in winter becomes possible.

In addition, if rainwater enters the box body 3 due to damage to the transparent plate 2, etc., the rainwater flowing on the upper surface of the upper part 6 of the heat collector 9 will
It falls onto the bottom surface of the box body 3 from the gap g interposed between the lower end of the upper part 6 and the lower part 7, is accelerated by flowing on the waterproof sheet 13, and is accelerated by the water passage hole 5 provided in the frame material f3. It is often discharged outside the box body 3. Therefore, even if a large amount of rainwater enters the box body 3, the rainwater can be smoothly drained without remaining at the lower end of the box body 3, and damage to the solar heat collecting device 1 can be prevented.

Note that the heat collector 9 has an intermediate separating piece 20 attached on the bottom piece 16A of the upper part 6, and a bottom piece 16B of the lower part 7 on the separating piece 20.
The upper part 6 and the lower part 7 can be placed at approximately the same height and separated by a small gap. It is also possible to form a structure in which rainwater flowing on the upper surface of the upper part 6 falls through the small gap, and the present invention can be modified into various embodiments.

〔Effect of the invention〕

The solar heat collecting device of the present invention, like the one on the ridge, has a water passage hole at the lower end of the frame member on the eaves side of the box body, and a heat collecting plate is provided in the upper part and extends from the lower end of the upper part to the eaves side. The rainwater flowing through the box body 3 is formed by the lower part arranged with a gap between the bottom surface of the box body and the rainwater to fall to the bottom surface of the box body, so that rainwater can be drained smoothly without accumulating inside the box body 3. Therefore, the height of the water passage hole 5 can be reduced. It is also possible to reduce the size of the box, reducing air leakage from the box. In addition, by separating the 4J heat plate, it is possible to prevent the vibration of the heat collector generated by the airflow that bypasses the lower end of the S heating element from propagating upward, and as a result of reducing the reciprocating part, the vibration is reduced. It can bring about many effects such as reducing the noise caused by air flow and making it possible to blow air at high speed.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is a perspective view without showing its main parts, and Fig. 3 is a sectional view showing its operation.
FIG. 4 is a sectional view showing the prior art. 2--translucent plate, 3-box, 5--water hole, 6--
Upper part, 7-- lower part, 9-- heat collecting plate, A-1 sloping roof, r3-- frame material, g- gap. Patent Expert National Housing Industry Co., Ltd. Representative Patent Attorney Naemura Tadashi 3 Figure 4g:i

Claims (1)

[Claims] (1) A water hole for drainage is formed at the lower end of the frame on the eaves side of the box, which is attached to the sloped roof and whose upper part is covered with a translucent plate, and which has an air inlet and an air outlet. Inside the box, the heat collector consists of an upper part that extends from the ridge side, and a lower part arranged at intervals that extends from the lower end of the upper part to the eaves side and allows rainwater flowing on the upper surface of the upper part to fall to the bottom of the box. A solar heat collector that houses a board.