JPS6273039A - Facing panel - Google Patents

Abstract

PURPOSE:To secure rigidity and flatness of reinforcing members and promote heat exchanging efficiency by giving resistance to the open air and thereby, promote also cooling effects by providing solar batteries, the reinforcing members which are fixed at the back of base plates of solar batteries and have honeycomb-structure, and vent holes formed on the reinforcing members. CONSTITUTION:At the intermediate parts of solar battery base plates 36, reinforcing members 38 are adhered and are made into one body with the base plates. A part of heat generated in semiconductor layers 45 is radiated from the back of the solar battery base plates 36 and the remaining heat is transmitted to the reinforcing members 38 and radiated from the reinforcing members 38. Thereby, air in air flowing parts 31 is heated to be changed into warm air and temp. difference occurs between the open air and warm air. By this temp. difference warm air rises up and are exhausted into the atmosphere from the top openings. And the open air flows into the air flowing parts 31 from open air introducing inlet 49 and the open air flowing through vent holes 48 is forced to rise up while being subjected to resistance by pieces 38D, 38E facing each other and vent holes 48.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an exterior panel constituting a construction.

[Prior Art] It has been proposed that a solar cell is used as an exterior panel to improve the energy saving effect.

In this case, since the power generation efficiency of the solar cell decreases when the temperature rises due to solar radiation, it is preferable to cool the solar cell substrate to prevent the temperature of the solar cell from rising. In order to solve this problem, it is possible to secure a gap between the solar cell substrate and the structure and allow outside air to pass through this gap.

However, since solar cell substrates are generally made of thin plates, they have low bending rigidity, and in order to secure a gap between the solar cell substrate and the surface of the structure when attaching it, it is necessary to provide a reinforcing material to reinforce the solar cell substrate. However, when the reinforcing material is provided, there is a problem in that the air circulation on the back surface of the solar cell substrate is reduced, and the cooling efficiency of the solar cell substrate is reduced.

[Problems to be Solved by the Invention] In consideration of the above facts, the present invention aims to provide an exterior panel that can ensure the rigidity and flatness of the solar cell substrate and improve the cooling effect of the solar cell substrate. It is a purpose.

[Means for Solving the Problems] The exterior panel according to the present invention includes a solar cell, a reinforcing member with a honeycomb structure fixed to the back surface of the substrate of the solar cell, and a ventilation hole formed in the reinforcing member. In this honeycomb structure, opposing pieces are inclined in the same direction to guide air flow.

[Function] In the exterior panel configured as described above, the rigidity and flatness of the solar cell substrate are ensured by the honeycomb structure reinforcing member fixed to the back surface. In addition, the outside air passing through the back side of the solar cell substrate is circulated while being subjected to appropriate resistance by the ventilation holes and opposing pieces of the reinforcing member, thereby improving heat exchange efficiency and preventing a decrease in the power generation efficiency of the solar cell.

[Example] FIGS. 1 to 4 show a first example of an exterior panel according to the present invention.
An example is shown.

In this example, FIGS. 4(A) and 4(B).

As shown in (C), the exterior panel 28 is attached to a wall 30 of a building, forming an air circulation section 31 therebetween.

The exterior panel 28 is shown in FIGS. 2 and 4 (A), (B),
As shown in (C), a solar cell substrate 36, a reinforcing member 38, and a vertical frame 33 and an upper frame 34 for reinforcing the peripheral edge.
, and a lower frame 35, covering the surface of the wall 30.

On the wall 30, there is an angled mounting bracket (32).
A is placed at the intersection of the panels, the panel is positioned in the height direction and fixed with bolt anchors, and the mounting hardware 32 is mounted and fixed on top of it by adjusting the horizontal direction in and out of the plane of the panel. Ru.

The exterior panel 28 has dowels 3 on the lower surface of an angle-shaped mounting bracket 44 that is pre-attached to the lower end of the vertical frame 33.
7 is provided, the dowel 37 is dropped into the dowel hole 39 on the top surface of the mounting hardware 32, and then at both ends of the upper frame 34,
It is mounted by sandwiching the elastic body for horizontal fine adjustment outside the panel surface between the true surface of the mounting hardware 32 and tightening it via the port 42.

The solar cell substrate 36 is bent toward the wall 30 by being fixed to the frame material of the reinforcing member at the periphery, and the middle part is attached to the reinforcing member 38.
is integrated with the back surface of the solar cell substrate 36 by adhesive, and a semiconductor layer 45 which is a solar cell is formed on the surface other than the bent portion.
is formed.

The reinforcing member 38 includes a plurality of strip-shaped plate materials 38A as shown in FIGS. 1(B) and 1(C). These plate materials 38A are folded along folding lines 38B parallel to each other in FIG.
) is bent as shown. In this bending, two adjacent bending parts are in the same direction, so the first
As shown in Figure (C), a honeycomb structure is created by connecting the plurality of plate materials 38A to each other at straight portions 38C.

The folding line 38B is inclined by a slight angle of 1 with respect to a line perpendicular to the longitudinal direction. For this reason, the facing piece 38D of the honeycomb,
38E is inclined in the same direction. The opposing pieces 38</b>D and 38</b>E have end surfaces in contact with the back surface of the solar cell substrate 36 cut out into a substantially semicircular shape, and a ventilation hole 48 is formed between the back surfaces of the solar cell substrate 36 . Note that the reinforcing member 38 is made of a metal with high thermal conductivity, and is configured to easily transfer heat from the solar cell substrate 36. Examples of metals with high thermal conductivity include aluminum and steel.

As shown in FIG. 3, a plurality of exterior panels 28 are arranged on the wall 30, and the vertical joints between the left and right adjacent exterior panels 28 prevent the intrusion of rainwater and disturbance of air rising in the air circulation section 31. Therefore, the exterior panel 2 adjacent to the bottom of 42 is sealed with airtight material.
At the horizontal joint between 8 and 8, the bottom edge of the panel and the panel L part with a vertical ridge for water return are bent with a gap, forming an outside air inlet 49 while preventing direct rainwater from entering. .

It should be noted that the outside air that entered the outside air inlet 49 from the front of the exterior panel 28 passes through the air circulation part between the solar cell substrate 36 and the wall 30 through the [-valve], and is released from the opening at the J-most two ends (not shown). Ru.

Next, the operation of this embodiment will be explained.

Part of the heat generated in the semiconductor layer 45 during sunlight is radiated from the back surface of the solar cell substrate 36, and the rest is radiated from the reinforcing member 38.
The heat is transmitted to and radiated from the reinforcing member 38. As a result, the air within the air circulation section 31 between the solar cell substrate 36 and the wall 30 is warmed and becomes warm air, creating a temperature difference between the air and the outside air.

Due to this temperature difference, the warm air in the air circulation section 31 between the solar cell substrate 36 and the wall 30 rises and is released into the atmosphere from the uppermost opening (not shown).

On the other hand, the outside air in front of the solar cell substrate 36 is supplied to the outside air introduction 1-1.
49 into the air circulation part 31 between the solar cell substrate 36 and the wall 30, and rises through the air hole 48 of the reinforcing member 38 and the space between the reinforcing member 38 and the wall 30.

At this time, the outside air passing through the ventilation hole 48 is
D, 38E and the ventilation hole 48 are used to urge the robot to rise while encountering resistance.

In this way, in this embodiment, the solar cell substrate 36 and the wall 30
The - part of the outside air passing through the air circulation part 31 between the
Since the reinforcing member 38 is lifted up through the inclined opposing pieces 38D, 38E and the ventilation hole 48, it is possible to secure an appropriate amount of time required for heat exchange and to ensure a smooth flow of outside air. Warm air radiated from the solar cell substrate 36 can be effectively ventilated. This makes it possible to prevent the temperature rise of the solar cell substrate 36 from IF.

Further, in this embodiment, since the reinforcing member 38 has a hexagonal honeycomb structure with high bending rigidity, the solar cell substrate 38
Overall rigidity can be ensured more reliably.

Furthermore, in this embodiment, the reinforcing member 38 has a hexagonal honeycomb structure with inclined facing pieces 38D and 38E, so it has a structure with a larger heat dissipation area than a normal honeycomb structure of the same height. There is. Furthermore, since the reinforcing member 38 is made of gold H, which has high thermal conductivity, the heat transfer efficiency from the solar cell substrate 36 is good, and the temperature rise of the solar cell substrate 36 can be further prevented. .

Although the reinforcing member 38 has a hexagonal honeycomb structure in this embodiment, it may have another structure such as a lattice-like structure as shown in FIGS. 5 and 6.

In addition, in this embodiment, the solar cell substrate 36 and the reinforcing member 3
Although the warm air is released to the outside air by the heat dissipation action of 8, other structures may be used, such as effectively utilizing this warm air as a heat source for space heating or hot water supply, or as a heat source for cooling and heating a heat pump.

In this case, if the structure is such that the heat insulator 50 is disposed on the surface of the wall 30 as shown in the second embodiment shown in FIGS. 7 to 1O, the space between the heat insulator 50 and the solar cell substrate 36 will be Since the warm air inside does not transfer heat to the wall 30, the warm air can be used more effectively.

In this second embodiment, a rectangular frame member 52 is firmly attached to the peripheral edge of the exterior panel 28 and the heat insulating material 50, and serves to reinforce the exterior panel 28 together with the reinforcing member 38. This frame material 52
As shown in FIG.
A vertical air tact 54 is formed by contacting the frame member 52 of No. 8.

Further, as shown in FIG. 8, a groove-shaped member 60 is fixed to the upper end of this frame member 52 to connect the pair of frame members 52, and a mold member 62 is fixed to the lower end of the frame member 60 to connect the pair of frames 52. An outside air inlet 56 is formed between the grooved members 60 and the shaped members 62 to introduce outside air into the air circulation section 31.

A channel member 60 horizontally disposed at the upper end of the exterior panel 28 is inclined from the center of the panel toward the top of both ends, and guides the air that has cooled the exterior panel 28 and risen to the vertical air duct 54. It has the role of preventing it from reaching the exterior panels 28 on three sides. The air that has moved in the horizontal direction is communicated to the vertical air duct 54 through a ventilation hole 58 that is penetrated through the vertical portion of the frame member 52.

[Effects of the Invention] As explained above, in the exterior panel according to the present invention, the rigidity and rigidity of the substrate are ensured by the solar cell and the honeycomb structure reinforcing member fixed to the back surface of the substrate of the solar cell, and Honeycomb structure with ventilation holes formed in the auxiliary member! t
Since the H-direction pieces are tilted in the same direction to guide airflow, this has an excellent effect of improving the cooling effect of the solar cell substrate.

[Brief explanation of drawings]

FIG. 1(A) shows an example of the exterior panel according to the present invention, and an enlarged view of the exterior panel in FIG. 1(C) is an explanatory diagram showing the manufacturing process of FIG. 1(B), FIG. 2 is a sectional view taken along the line II-II of FIG. 1(A), and FIG. 3 is a schematic explanatory diagram showing the installation state of the exterior panel, and Figure 4 (A
) is a cross-sectional view along line ■ (A) -rV (A) in Figure 3, and Figure 4 (B) is Figure 4 (A) (7) IV (B)
-1V (B) vi mini-vehicle cross-sectional view, Figure 4 (C) is a cross-sectional view along rv (c) -IV (C) m of Figure 4 (A), Figures 5 and 6 are other FIG. 7 is an explanatory diagram corresponding to FIG. 1 and FIG. 2 in an embodiment, FIG. 7 is an explanatory diagram in another embodiment corresponding to FIG. 3, and FIG. 8 is an explanatory diagram corresponding to FIG. ■
9 is a sectional view taken along line IX--IX in FIG. 7, and FIG. 9 is a sectional view taken along line XX in FIG. 9. 2.3...Exterior panel, 301 Wall, 36...Solar cell substrate, 38...Reinforcement member, 38D, 38E--One opposing piece, 45...Semiconductor layer, 48...Vent hole .

Claims (2)

[Claims] (1) An exterior panel constituting a structure, comprising a solar cell, a reinforcing member with a honeycomb structure fixed to the back surface of a substrate of the solar cell, and a ventilation hole formed in the reinforcing member. An exterior panel characterized in that opposing pieces are inclined in the same direction and are used for guiding airflow. (2) The exterior panel according to claim (1), wherein the ventilation hole penetrates the honeycomb near the solar cell substrate.