JPH0338377B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a ventilated roof structure using hollow heat dissipation panels.

(Prior art) Hollow materials are used to allow ventilation inside, and the hot air that accumulates on the roof surface on days with intense sunlight such as midsummer is removed to the outside by the action of the upward flow of warm air. Technologies aiming at heat insulation effects have been proposed so far.

However, since this technology only utilizes the effect of the upward flow of hot air retained on the roof surface, upward flow is not induced until a temperature difference of a certain width occurs, and it is only effective to some extent. However, there were limits in terms of efficiency.

(Problems to be Solved by the Invention) Therefore, the present invention improves the heat dissipation effect of the above-mentioned upward airflow, utilizes the suction effect of the wind blown onto the roof top surface, and is also effective against wind in any direction. It has been devised so that it can be used.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a vertically elongated top plate member 2 and a lower part of the same length having a width protruding from both sides of the top plate member 2. The face plate members 3 are integrally pasted together with spaced core blocks 4 interposed therebetween to form a hollow panel 1 capable of ventilation in all directions.

In addition, ventilation spaces 5 of the hollow panel 1 are provided on both sides.
The connector 6 has a substantially U-shaped cross section and has a ventilation hole 6b that communicates with the connector, and has an upper end horizontally bent outward to form a ridge 6c.

Then, the hollow panels 1 are arranged in parallel in the direction of the ridge, the connectors 6 having a substantially U-shaped cross section are inserted into the recesses formed at the mutual joints, and are tightened with fasteners 6d such as bolts. It forms the base of the roof exterior members.

Further, at the top of the hollow panels 1 arranged in parallel in the ridge direction, an exhaust section 7 such as a box ridge or a door ridge communicating with the ventilation space 5 of each hollow panel 1 is provided, thereby providing a heat dissipation panel roof structure.

(Function) The roof structure in which the present invention is implemented is shown in Figs. 2 to 4. First, the roof surface is exposed to direct sunlight and its temperature rises, and the hot air creates an upward air current, and the upper exhaust section 7 It is discharged from the air and exerts a cooling effect. At this time, since the hollow panel 1 according to the present invention allows ventilation in all directions (the connector 6 is also provided with ventilation holes 6b), ventilation is extremely good.

Next, since a weak or strong wind is usually blowing above the roof, when this wind passes near the exhaust section 7, the air from the opening of the exhaust section 7 is sucked, producing a so-called eject effect. In this case, as mentioned above, ventilation is possible in all directions, so no matter what direction the wind blows from, convection will occur from all directions within the panel and warm air can be collected. can be discharged to further increase the cooling effect and cultivate the eject effect.

(Example) To explain the embodiments shown in the drawings below, in FIG. The lower plate member has a width that protrudes from both sides of the upper plate member 2. The upper plate member 2 and the lower plate member 3 are integrally bonded to each other via core blocks 4 at appropriate intermediate intervals to form a hollow panel 1 capable of ventilation in all directions. Note that 2a in the drawing is a polyethylene sheet adhered to the surface of the upper plate member 2.

Further, in the same figure, reference numeral 6 denotes a metal connector with a substantially U-shaped cross section, which has communication holes 6b on both sides that communicate with the ventilation space 5 of the hollow panel 1, and has both upper ends horizontally bent at the outer ends. and is formed on the ribbed edge 6c.

Then, the hollow panels 1 are arranged in parallel in the direction of the ridge, the connectors 6 having a substantially U-shaped cross section are inserted into the recesses formed at the mutual joints, and are tightened with fasteners 6d such as bolts. It forms the base of the roof exterior member (Figures 2 and 3).

Further, a box-shaped exhaust section 7 communicating with the ventilation space 5 of each hollow panel 1 is provided at the top in the ridge direction of the hollow panels 1 arranged side by side to form a heat dissipation panel roof structure (third, Figure 4).

[Effects of the Invention] As described above, the present invention utilizes upper air currents to induce an eject effect, instead of relying only on rising air currents of warm air and failing to obtain a sufficient cooling effect. By doubling the roof surface cooling, when using a cooler in a factory or the like during the summer, it can be made more effective than in the past, which had little cooling effect due to direct heat.

When the roof structure of the present invention is used in a house under the following conditions, the number of ventilations N in the heat dissipation panel will be as follows.

(Conditions) Roof area: 88m Volume inside ² panels: 2.2m ³ α: Effective opening ratio 0.6 s: Opening area 0.55m ² V: Air flow velocity 0.05m/s N=α・s・v・3600 seconds/heat dissipation panel Internal volume = 0.6・0.55・0.05・3600/2.2 = 2.7 times/h And since the generally required attic ventilation frequency is 5 times/h or more, sufficient ventilation can be achieved with the above ventilation frequency. The heat dissipation effect according to the present invention is proven.

In addition, in terms of construction, the connectors 6 having a substantially U-shaped cross section are inserted into the joints between the hollow panels 1 installed in parallel, and tightened with the fasteners 6d to form the base of the roof exterior member. Because of this, we can proceed extremely efficiently.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 shows a hollow panel and a connector 6 having a substantially U-shaped cross section according to the present invention.
FIG. 2 is a partial cross-sectional plan view of the same connected state, FIG. 3 is a schematic plan view showing the ventilation effect of the roof structure of the present invention, and FIG. 4 is a longitudinal sectional front view of the roof structure of the present invention. . 1...Hollow panel, 2...Top plate member, 3...
Bottom plate member, 4... Core block, 5... Ventilation space, 6... U-shaped connector in cross section, 6b... Ventilation hole, 6c... Ribbed edge, 6d... Stopper, 7... Exhaust part .

Claims (1)

[Claims] 1. A vertically elongated upper plate member 2 and a lower plate member 3 of the same length having a width protruding on both sides of the upper plate member 2 are integrally bonded together via spaced core blocks 4, and ventilation is provided on all sides. Hollow panels 1 are arranged side by side in the direction of the ridge, and the recesses formed at the mutual joints have ventilation holes 6b on both sides that communicate with the ventilation space 5 of the hollow panels 1, and the upper end faces outward. Connecting tool 6 with approximately U-shaped cross section formed by horizontal bending and forming ridge 6c
are inserted and tightened through the fasteners 6d to form the base of the roof exterior member, and the hollow panels 1 arranged in parallel are
At the top in the ridge direction, there is a ventilation space 5 of each hollow panel 1.
A heat dissipation panel roof structure characterized by providing an exhaust section 7 that communicates with the heat dissipation panel.