JPS6273038A - Cooling structure of facing panel - Google Patents

Abstract

PURPOSE:To prevent warm air from entering each upper cavity part and promote cooling effect by releasing warm air into the atmosphere from air ducts into which warm air warmed up by radiation action of base plates of facing panels equipped with solar batteries, is introduced through guide paths. CONSTITUTION:Facing panels 28, comprising solar battery base plates 32, semiconductor layers 35 as solar batteries, and reinforcing members 34, cover the surfaces of walls 30. Heat generated in the semiconductor layers 35 at sunlight hour, a part of which is radiated, heats up air in cavity parts 45 between solar battery base plates 32 and insulators 66 to turn it into warm air and therefore, temp. difference occurs between the atmosphere and the cavity parts. Thereby, warm air rising up and guided by lateral upper frames 2 is introduced into air ducts 70 through vent holes 56 without entering the upper cavity parts 45. This warm air rises up further in the air ducts 70 and is exhausted into the atmosphere from the top openings.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an exterior panel cooling structure for cooling an exterior panel attached to a structure using outside air.

[Prior Art] It has been considered to make effective use of exterior panels by attaching solar cells as exterior panels to the roofs and walls of structures. In this case, since the power generation efficiency of the solar cell decreases when the temperature increases due to solar radiation, it is preferable to cool the solar cell substrate to prevent the temperature of the solar cell from increasing.

To achieve this, it is sufficient to provide a gap between the solar cell substrate and the structure, but warm air warmed by the heat dissipation effect of the solar cell substrate rises within the space between the solar cell substrate and the surface of the structure. Since it is released into the atmosphere, when it rises, it passes through the back side of other solar cell substrates placed on either side of it, and is not sufficient as a measure to prevent the temperature of the solar cell from rising.

[Problems to be Solved by the Invention] Taking the above facts into consideration, the present invention aims to obtain a cooling structure for an exterior panel that can improve the cooling effect of a solar cell substrate.

[Step F for Solving Problems] The cooling structure for an exterior pawl according to the present invention is a cooling structure that cools a plurality of exterior panels equipped with solar cells and attached to the surface of a structure. - a partition wall disposed between the upper and lower exterior panels to prevent air flow from the cavity in the lower exterior panel to the cavity in the upper exterior panel; and,
It has an air duct arranged between the left and right exterior panels, and a guide passage that communicates the air duct with the upper space of each cavity.

[Function] In the exterior panel cooling structure configured as described above, the warm air heated by the heat dissipation effect of each solar cell substrate rises within each cavity partitioned by the partition wall, enters the air tact via the guide passage, and then It rises in the air duct and is released into the atmosphere. At this time, the warm air rising in each cavity is prevented from entering each cavity above it due to the partition wall.
The cooling effect is not reduced.

[Example] Figs. 1 to 6 and 11 show an example of the cooling structure for an exterior panel according to the present invention.

In this embodiment, as shown in FIG.
8 is attached to a wall 30 of a building that is a structure.

As shown in FIGS. 5 and 6, the exterior panel 28 is composed of a solar cell substrate 32, a semiconductor layer 35 which is a solar cell, and a reinforcing member 34, and covers the surface of the wall 30.

The reinforcing member 34 is bonded to the back surface of the solar cell substrate 32 except for the peripheral edge, and is integrated with the solar cell substrate 32 and the exterior panel 28
Ensures rigidity and flatness. This reinforcing member 34
has a hexagonal honeycomb structure with inclined surfaces 36. This reinforcing member 34 has a substantially semicircular cutout at the end surface that contacts the back surface of the solar cell substrate 32.
A ventilation hole 38 is formed on the back surface of the solar cell substrate 32. Note that the reinforcing member 34 is made of a metal with high thermal conductivity, and is configured to easily transfer heat from the solar cell substrate 32. Examples of metals with high thermal conductivity include aluminum and steel.

This exterior panel 28 consists of a pair of mutually parallel vertical frames 40 forming a part of the partition wall and a horizontal upper frame 4 forming another part of the partition wall.
2. It is attached to the wall 30 via the lower horizontal frame 44.

The vertical frame 40, the horizontal upper frame 42, and the horizontal lower frame 44 are connected to each other along the outer circumferential line of the exterior panel 28, as shown in FIGS. 2 to 4. A peripheral portion of the solar cell substrate 32 is adhered to the vertical frame 40, the horizontal upper frame 42, and the horizontal lower frame 44 on the outside of the wall 30. In addition, the horizontal upper frame 42
The vertical edge part 42A is attached to the wall fixing bracket 4 with the port 41.
3, and the horizontal lower frame 44 is inserted into the wall fixing bracket 43 via the bracket 44A.

As a result, between the exterior panel 28 and the wall 30, there are the exterior panel 28, the vertical frame 40, the horizontal upper frame 42, the horizontal lower frame 44, the vertical frame 40, the horizontal upper frame 42, and the horizontal lower frame 44. A gap 45 is formed surrounded by the attached heat insulating material 66.

The horizontal upper frame 42 is formed into a square tube shape, and the exterior panel 28
located along the top edge of the The lower surface of this upper horizontal frame 42 is sloped downward toward the center in the longitudinal direction, and the cross-sectional shape of the upper horizontal frame 42 gradually increases toward the center in the longitudinal direction. The upper end of the rising portion 42A of the horizontal upper frame 42 is formed into a U-shape, into which a molded airtight material 48 is fitted.

The lower horizontal frame 44 is arranged along the lower edge of the exterior panel 28. The side of the horizontal lower frame 44 that is fixed to the solar cell substrate 32 has a narrow square tube shape, and ventilation holes 50 are formed in the upper surface of this square tube portion and the lower part of the surface facing the wall 30, respectively. As shown by the imaginary line arrow in FIG. 2, it serves as an outside air inlet.

In this lower horizontal frame 44, a molded airtight material 52 is fitted into a U-shaped portion located on the same plane as the molded airtight material 48. As a result, the pair of upper and lower exterior panels 28 are insulated between the gap 45 and the wall 30 in this portion by contacting the molded airtight members 48 and 52.

The vertical frame 40 is No. 1 of the exterior panel 2S. placed on both right sides. The vertical frame 40 has a U-shaped cross section and forms a groove 54 that opens toward the outside of the exterior panel 28. This vertical frame 40 has ventilation holes 56 serving as guide passages.
is formed at the lower part of the connecting portion with the horizontal upper frame 42 to communicate the gap 45 and the groove 54. Furthermore, U-shaped portions are formed at both ends of the vertical frame 40 whose tips extend to the sides of the exterior panel 28, into which molded airtight members 58 and 60 are fitted.

The molded gas seal 58 is located flush with the molded gas seals 48, 52 and is connected at its ends thereto.

As shown in FIG. 11, a protrusion 4OA extending from the upper end of the vertical frame 40 is connected at right angles to a rising portion 42A of the horizontal upper frame 4z. A molded airtight material 4 branched from a part of the molded airtight material 48 is provided on the upper end surface and front end surface of this protrusion 40A.
8A is abutted, and the tip end is connected to the molded airtight material 60. This molded airtight material 48A is formed between the lower end of the exterior panel 28 and the upper end of the exterior panel 28 below. That is, the outside air introduction lower 2 formed at the horizontal joint is isolated from the groove 54.

Between the left and right adjacent exterior panels 28, that is, at the vertical joints between each exterior panel 28, the molded airtight materials 58 and 60 that are adjacent to each other are in contact with each other, and an air duct 70 is formed between the pair of vertical frames 40 that face each other. ing. This air duct 70 is in communication with the air duct 70 above it, and the top portion (not shown) is open to the atmosphere.

Next, the operation of this embodiment will be explained.

Part of the heat generated in the semiconductor M35 during sunlight is radiated from the back surface of the solar cell substrate 32, and the rest is released from the reinforcing member 35.
The heat is transmitted to and radiated from the reinforcing member 34. As a result, the air in the gap 45 between the solar cell substrate 32 and the heat insulating material 66 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 gap 45 between the solar cell substrate 32 and the heat insulating material 66 rises, is guided to the horizontal upper frame 42, and is moved between the solar cell substrate 32 and the heat insulating material 66 above it. It enters into the air duct 70 through the ventilation hole 56 without entering the cavity 45 of the air duct. The warm air that has entered the air duct 70 passes through the air duct 70, rises further, and is discharged into the atmosphere from the uppermost opening of the air duct 70.

On the other hand, outside air enters the gap 45 between the solar cell substrate 32 and the heat insulating material 66 from the outside air introduction lower 2 through the ventilation hole 50, and enters the ventilation hole 38 of the reinforcing member 34 and the reinforcement member 34 within the gap 45. and the heat insulating material 66. At this time, the outside air passing through the ventilation hole 38 is urged to rise by the slope of the honeycomb of the reinforcing member 34 while being resisted by the slope 36 and the ventilation hole 38 .

In this embodiment, the warm air in the gap 45 between the solar cell substrate 32 and the heat insulating material 66 flows into the gap 45 between the solar cell substrate 32 and the heat insulating material 66 above it. The solar cell substrate 32 enters into the air duct (air duct) 70 arranged along the vertical joints of each exterior panel 28 without entering.
The warm air caused by
2 temperature rise is prevented.

Note that in this embodiment, the solar cell substrate 32 and the reinforcing member 3
Due to the heat dissipation action of 4, the warm air is transferred to the air duct 70.
Although the warm air is released into the atmosphere through the heat pump, 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. For example, as shown in FIG. 7, the top of the air duct 70 is communicated with a pipe 74 connected to a heat source of a heat pump (not shown), and the pipe 74 and the air duct 70 are connected to each other.

By providing a blower (not shown) that forcibly blows the air in the air duct 70 into the pipe 74, warm air can be used more effectively as a heat source for the heat pump.

Furthermore, as shown in FIG. 8, the heat insulating material 66 may be directly used as an interior material in the room to effectively utilize the exterior panel 28.

Furthermore, as shown in FIG. 9 and FIG.
In addition, in this embodiment, the reinforcing member 34 has a honeycomb structure, but is not limited to this, and may have any other structure that strengthens the rigidity of the solar cell substrate 32. Good too.

[Effects of the Invention] As explained above, the exterior panel cooling structure according to the present invention is a cooling structure that cools a plurality of exterior panels equipped with solar cells and attached to the surface of a structure. and a partition wall disposed between the upper and lower exterior panels to prevent air flow from the cavity in the lower exterior panel to the cavity in the upper exterior panel; It has an air duct arranged between the left and right exterior panels, and a guide passage that communicates the air duct with the upper space of each cavity, so it has an excellent cooling effect that can improve the cooling effect of the solar cell substrate. have an effect.

[Brief explanation of drawings]

Figure 1-1 shows an embodiment of the exterior panel according to the present invention, and is a front view showing the state with the exterior panel attached, Figure 2 is a sectional view taken along the line M, and Figure 4 is the I'V-TV line in Figure 3. 5 is a back view of the exterior panel showing the structure of the exterior panel in FIG. 1, FIG. 6 is a sectional view taken along line Vl-VI in FIG. 5, and FIGS. Other embodiments are shown in FIGS. 7 and 8.
The figure is a schematic diagram showing the installation state of each exterior panel corresponding to Figure 2, Figures 9 and 10 are schematic diagrams showing the installation status of individual exterior panels, and Figure 11 is the upper end of the exterior panel. It is a perspective view showing a corner. 28--exterior panel, 30--φ wall, 32--solar cell substrate, 35--semiconductor layer, 40--vertical frame, 42--horizontal upper frame, 44---- φ tank lower frame , 45...Gap portion, 56.Air vent 70.Air duct. Fig. 1 kosuke 28 11/40 Pilgrimage λo-rei 42 ・Nesaku” 2-ne-shu 44 ・Osakashi-shoki 70 Work 7 React Fig. 3 704 Ata 7 to 4 Figure 5 Figure 6 W Shi'■ Figure 7 Figure 8 Figure 9 Figure 10 Figure 11

Claims (1)

[Claims] (1) A cooling structure that cools multiple exterior panels equipped with solar cells and attached to the surface of a structure, including a gap for outside air ventilation formed between the exterior panel and the surface of the structure, and the upper and lower exterior panels. A partition wall disposed between the panels to prevent air flow from the void in the lower exterior panel to the void in the upper exterior panel, an air duct disposed between the left and right exterior panels, and an upper part of each void. A cooling structure for an exterior panel, comprising: a guide passage communicating between a space and an air duct.