Heat-shielding panels and heat-shielding structures

Abstract

To provide a heat-shielding panel that can be installed on corrugated or flat roofs, while considering ventilation and providing sufficient cooling effect. [Solution] A heat-shielding panel having a temperature change buffering function that covers a roof structure having a regular uneven surface and buffers temperature changes in the interior space of a building equipped with the roof structure, wherein the heat-shielding panel comprises a first connecting portion for connecting to the upper flat surface of one protrusion of the roof structure, a second connecting portion for connecting to the upper flat surface of another protrusion of the roof structure other than the one protrusion, an upper ventilation portion having a vent for ventilation, a main body portion for shielding sunlight which is inclined at a constant angle with respect to the surface forming the first connecting portion, and a lower ventilation portion having a vent for ventilation, wherein the upper ventilation portion and the lower ventilation portion are inclined at the same constant angle.

Description

Technical Field

[0001] The present invention relates to a heat insulation panel and a heat insulation structure using the heat insulation panel.

Background Art

[0002] A folded plate roof is a type of uneven roof structure arranged on the roof of a factory or the like. Since this folded plate roof is made of metal, its surface temperature tends to become high in summer, and the internal space of the building under this folded plate roof also tends to become very high in temperature due to heat accumulation.

[0003] Therefore, for example, there is a known technique of making the folded plate roof into a double structure and providing a gap portion having an air layer between the double structures to reduce the temperature of the internal space of the structure under the folded plate roof.

[0004] Also, as another prior art, there is provided a heat insulation structure for a roof that covers and arranges a roof material such as a folded plate roof to insulate heat (Patent Document 1).

[0005] Also, as another prior art, there is a known mechanism for preventing the temperature rise of a folded plate roof by covering the upper part of the folded plate roof with a heat insulation sheet having a gap portion for ventilation (Patent Document 2).

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0007] However, the heat-shielding structure described in Patent Document 1 does not have ventilation openings designed with the shape of the corrugated metal roof in mind. Therefore, it cannot be said to have an optimal ventilation configuration and thus cannot be said to have a sufficient cooling effect.

[0008] Furthermore, the heat-shielding sheet described in Patent Document 2 merely has ventilation openings between the heat-shielding sheets and does not take into account the direction of airflow. Therefore, it is not a configuration that can be expected to sufficiently reduce the temperature of the interior space under the corrugated metal roof.

[0009] Furthermore, from the standpoint of market competitiveness, it is desirable to provide heat-shielding panels that can be manufactured at a lower cost.

[0010] The present invention aims to solve the above problems. [Means for solving the problem]

[0011] The present invention relates to a heat-shielding panel having a temperature change buffering function that covers a roof structure having a regular uneven surface and buffers temperature changes in the interior space of a building equipped with the roof structure, wherein the heat-shielding panel comprises a first connecting portion for connecting to the upper flat surface of one protrusion of the roof structure, a second connecting portion for connecting to the upper flat surface of another protrusion of the roof structure other than the one protrusion, an upper ventilation portion having a vent for ventilation, a main body portion for shielding sunlight which is inclined at a constant angle with respect to the surface forming the first connecting portion, and a lower ventilation portion having a vent for ventilation, wherein the upper ventilation portion and the lower ventilation portion are inclined at the same constant angle.

[0012] Furthermore, the present invention provides a heat-shielding structure in which the heat-shielding panel described in claim 1 is arranged on the roof structure by connecting the first connecting portion to the upper flat surface of the one protrusion, and connecting the second connecting portion to the upper flat surface of the other protrusion.

[0013] The present invention also relates to a heat-shielding panel that covers a roof by connecting to a roof structure having a regularly uneven surface, or to members regularly arranged on the upper part of a roof, and has a buffering function to buffer temperature changes in the interior space of a building equipped with the roof structure, and is characterized by comprising: a first main body support portion that supports other heat-shielding panels arranged adjacent to the heat-shielding panel; a connection portion having at least one connection hole for connecting to the roof structure and a ventilation opening for ventilation; an upper ventilation portion inclined at a certain angle with respect to the connection portion and having a ventilation opening for ventilation to the space below the heat-shielding panel; a second main body support portion that supports the main body portion of the heat-shielding panel; and a main body portion inclined at a certain angle with respect to the connection portion for shielding sunlight.

[0014] Furthermore, the present invention is a heat-shielding structure in which the heat-shielding panel described in claim 3 is arranged on the roof structure or the member by connecting the connecting portion to the roof structure or the member.

[0015] Furthermore, the present invention is a heat-shielding structure characterized by arranging weights on a flat roof and arranging the heat-shielding panel described in claim 3 on top of the weights. [Effects of the Invention]

[0016] By implementing the present invention, it is possible to provide a heat-shielding panel with a high heat-shielding effect that controls the direction of ventilation. Furthermore, the present invention is aesthetically superior and can be manufactured inexpensively. [Brief explanation of the drawing]

[0017] [Figure 1] This is a perspective view of the heat shield panel according to Embodiment 1 of one embodiment of the present invention, before it is installed. [Figure 2] This is a perspective view of a heat-shielding panel according to Embodiment 1 of one embodiment of the present invention, when installed on a corrugated metal roof. [Figure 3] This is a cross-sectional view of a heat-shielding panel according to Embodiment 1 of one embodiment of the present invention, when installed on a corrugated metal roof. [Figure 4]Perspective view of the heat insulation panel of Mode 2 according to an embodiment of the present invention when not installed. [Figure 5] Perspective view of the heat insulation panel of Mode 2 according to an embodiment of the present invention when installed on a folded plate roof. [Figure 6] Cross-sectional view of the heat insulation panel of Mode 2 according to an embodiment of the present invention when installed on a folded plate roof. [Figure 7] Perspective view of the heat insulation panel of Mode 3 according to an embodiment of the present invention when installed on a folded plate roof. [Figure 8] Perspective view of the heat insulation panel of Mode 4 according to an embodiment of the present invention when not installed. [Figure 9] Perspective view of the heat insulation panel of Mode 4 according to an embodiment of the present invention when installed on a gable roof.

Mode for Carrying Out the Invention

[0018] The present invention is a heat insulation panel having a temperature change buffering function that covers a roof structure having a regular concavo-convex structure and buffers the temperature change of the internal space of a building provided with the roof structure. The heat insulation panel includes a first connection portion for connecting to the upper flat surface of one convex portion of the roof structure, a second connection portion for connecting to the upper flat surface of another convex portion of the roof structure other than the one convex portion, an upper ventilation portion having a ventilation hole for ventilation, a main body portion for shielding sunlight that is inclined at a certain inclination angle with respect to the surface forming the first connection portion, and a lower ventilation portion having a ventilation hole for ventilation. The upper ventilation portion and the lower ventilation portion are inclined at the same certain inclination angle, and it is a heat insulation panel characterized by this.

[0019] In addition, the roof structure having a regular concavo-convex structure, which is the object for installing the heat insulation panel in the present embodiment, is, for example, a folded plate roof as an example.

[0020] In addition, one convex portion or another convex portion of the roof structure having a regular concavo-convex structure refers to the convex portion of the folded plate roof.

[0021] [1. Embodiment 1 of a heat-shielding panel according to one embodiment of the present invention] <About the structure> First, the structure of the heat shield panel 1 according to one embodiment of the present invention (hereinafter referred to as Embodiment 1) will be described using Figure 1. As shown in Figure 1, the heat shield panel 1 according to one embodiment of the present invention has a structure in which a single metal plate is bent at four bending points 2.

[0022] These four bends divide the heat shield panel 1 into the following areas, from left to right in Figure 1: the first connection section 3, the upper ventilation section 4, the main body section 5, the lower ventilation section 6, and the second connection section 7.

[0023] Next, let's describe the function of each part. First, the first connection part 3 is a part that is fixedly connected to the upper flat surface of a protrusion on a corrugated metal roof, etc., via connecting members such as bolts and nuts. Since this part has such a connection function, as long as there is enough area to fix it, its size (left and right width in Figure 1) can be wide, and as long as it can be fixed to the corrugated metal roof, it can be of various lengths.

[0024] Next, the upper ventilation section 4 will be described. When the heat shield panel 1 according to one embodiment of the present invention is installed on the corrugated metal roof 20, the upper ventilation section 4 of the heat shield panel 1 will be positioned at an inclination (for example, at an inclination of approximately 60° with respect to the horizontal plane). As a result, wind from above will pass through the ventilation opening 8 of the upper ventilation section 4 and flow into the space below the heat shield panel between the corrugated metal roof and the heat shield panel.

[0025] The upper ventilation section 4 is provided with ventilation openings 8 for ventilation, but the shape of these ventilation openings 8 is not limited to any particular type. That is, it may consist of multiple circular holes arranged regularly, or it may be a single large rectangular opening, etc.

[0026] Next, we will describe the main body 5. As shown in Figure 1, the main body 5 is a roughly rectangular plate-like structure. When the heat shield panel 1 is installed on the corrugated metal roof 20, the main body 5 is inclined at approximately 30° with respect to the horizontal plane.

[0027] In this case, the main body 5 has the functions of reflecting sunlight and guiding ventilation.

[0028] Although details will be described later, by setting the main body 5 to the angle of inclination described above, airflow will be smoothly carried out from the vents 8 of the upper ventilation section 4 into the space below the heat shield panel. However, there may be some variation in this angle of inclination as long as smooth airflow at the bottom is possible.

[0029] Next, the lower ventilation section 6 will be described. The lower ventilation section 6 is a part that is connected to the main body 5 and has ventilation openings 9. In one aspect, the ventilation openings 9 of the lower ventilation section 6 have the function of ventilating the air that has come down from the main body 5 into the space below the heat shield panel.

[0030] Furthermore, the shape of the ventilation opening 9 of the lower ventilation section 6 can be in various forms, similar to the ventilation opening 8 of the upper ventilation section 4 described above. That is, circular openings may be arranged regularly, or they may be single square holes.

[0031] Furthermore, although details will be described later, air flows into the space below the heat shield panel through the ventilation opening 9 of the lower ventilation section 6.

[0032] Furthermore, the first connection section 3 and the second connection section 7 are provided with multiple connection holes 10 for connecting to the corrugated metal roof 20 via a connecting member 22. The location and number of these connection holes 10 can vary, as long as they allow the heat shield panel 1 to be fixed to the corrugated metal roof.

[0033] <Regarding the layout and ventilation mechanism> Next, the installation configuration and ventilation mechanism when the heat-shielding panel 1 in embodiment 1 of this embodiment is installed on a corrugated metal roof 20 will be described using Figures 2 and 3.

[0034] Figure 2 shows a perspective view of the heat shield panel 1 according to embodiment 1 of this embodiment when it is installed on a corrugated metal roof 20. As shown in Figure 2, the first connection portion 3 of the heat shield panel 1 is connected along the upper flat portion 20a of the convex portion of the corrugated metal roof 20.

[0035] In addition, one heat-shielding panel 1 is placed on one of the recesses between the convex and convex parts of the corrugated metal roof structure.

[0036] However, if there is a sufficient difference between the width between the protrusions and recesses of the corrugated metal roof and the width of the heat-shielding panel 1 (width in the left-right direction in Figure 2), then a single heat-shielding panel 1 may be installed on multiple recesses.

[0037] Furthermore, the heat-shielding panel 1 may be installed over the entire upper part of the corrugated metal roof 20 at the top of a building.

[0038] Next, Figure 3 shows a cross-sectional view of the heat-shielding panel 1 connected to the corrugated metal roof 20. As shown in Figure 3, the heat-shielding panel 1 is connected to the corrugated metal roof 20 at the upper flat portion 20a of the convex portion, at the first connection portion 3, or at the second connection portion 7 of the adjacent heat-shielding panel 1 that overlaps with the first connection portion 3, via connecting members 22 such as bolts or nuts.

[0039] Furthermore, the ventilation openings 8 of the upper ventilation section 4 and 9 of the lower ventilation section 6 open diagonally upward at a plane that is approximately 60° from the plane forming the first connection section 3 or the second connection section 7.

[0040] In this configuration of the heat-shielding panel 1, wind 13 flows from the upper ventilation section 4 into the space 12 below the heat-shielding panel. At this time, the incoming wind 13 generally moves along the convex slope section 20b of the corrugated metal roof 20 toward the concave flat surface 20c, and then continues to move along the concave flat surface 20c of the corrugated metal roof.

[0041] On the other hand, from the opposite side of the ventilation opening 8 in the space 12 below the heat shield panel, wind that has traveled along the top of the main body 5 flows into the space 12 below the heat shield panel through the ventilation opening 9 of the lower ventilation section 6. This wind that flows into the space 12 below the heat shield panel travels downward along the convex slope 20b and then moves along the concave flat surface 20c.

[0042] Here, the lower ventilation section 6 is located below the first connection section 3 and is connected to the very bottom of the main body section 5. Therefore, the air coming down the main body section 5 is easily guided towards the ventilation opening 9, reducing the risk of the airflow becoming disordered.

[0043] The air flowing in from the upper ventilation section 4 and the air flowing in from the lower ventilation section 6 collide near the center of the recessed flat surface 20c and are swirled upwards (center of Figure 3). Then, each of the airflows 13 is directed towards either the upper ventilation section 4 or the lower ventilation section 6. This mechanism causes the air in the space 12 below the heat shield panel to be repeatedly stirred as the air flows in, thereby suppressing an excessive temperature rise in the internal space 14 below the corrugated metal roof 20.

[0044] Furthermore, in this embodiment, a solar panel may be installed on the upper part of the main body 5. In this configuration, the temperature rise of the solar panel can be suppressed, and more efficient power generation can be achieved.

[0045] [2. Embodiment 2 of a heat-shielding panel according to one embodiment of the present invention] <About the structure> Next, another embodiment of the heat shield panel according to one embodiment of the present invention (hereinafter referred to as the second embodiment) will be described. Another embodiment of the heat shield panel according to one embodiment of the present invention is as shown in Figures 4 to 6.

[0046] As shown in Figure 4, in this embodiment, the heat shield panel 30 is formed by joining a metal member constituting a first main body support portion 31, a connecting portion 32, an upper ventilation portion 33, a second main body support portion 34, and a member constituting the main body portion 35 using fasteners such as screws. The heat shield panel 30 has a first main body support portion 31, a connecting portion 32, an upper ventilation portion 33, a second main body support portion 34, and a main body portion 35. In addition, the connecting portion 32 is provided with at least one connecting hole 36.

[0047] The connection hole 36 is a part that is connected to the upper flat portion of the protrusion of the corrugated metal roof via a connecting member such as a bolt or nut.

[0048] Here, the heat shield panel 30 may be formed by connecting a bent metal plate having a first main body support portion 31, a connecting portion 32, an upper ventilation portion 33, and a second main body support portion 34 with a metal plate of the main body portion 35 using fasteners or the like. Alternatively, a single metal plate may be processed and formed to create a plate body that includes all of the above-mentioned parts.

[0049] Next, we will describe each part. The function of each part is generally the same as that of the first embodiment, with respect to the same parts as in the first embodiment.

[0050] First, the first main support section 31 is the part that supports the main body section 35 of the adjacent heat shield panel 30. That is, the adjacent heat shield panel 30 is fixed by stacking and fixing the lower part of the adjacent heat shield panel 30 onto the upper part of the first main support section 31.

[0051] The adjacent heat shield panel 30 and the first main body support section 31 may be firmly fixed together using fastening members such as bolts and nuts.

[0052] Next, let's describe the connection portion 32. The connection portion 32 is the part that connects to the upper flat portion of the protrusion of the corrugated metal roof. As mentioned above, one or more connection holes 36 are drilled in the connection portion 32, and it connects to the upper flat portion of the protrusion of the corrugated metal roof via the connection holes 36.

[0053] Furthermore, the connecting portion 32 and the upper ventilation portion 33 and the main body portion 35 may have different widths (vertical width in Figure 4) in a plan view when the heat shield panel 30 is installed on the corrugated metal roof, with the connecting portion 32 and the upper ventilation portion 33 being narrower than the main body portion 35. In this configuration, when multiple heat shield panels 30 are installed on the corrugated metal roof, gaps without panels can be provided on both sides of the main body portion 35. Air may then exit from the space below the heat shield panel through these gaps. However, it is also acceptable to omit these gaps and install the main body portions 35 closely together.

[0054] Furthermore, the connection portion 32 is provided with ventilation openings 41 for airflow. In one embodiment, the shape of the ventilation openings 41 is a roughly rectangular shape with one opening per location, but they can be circular, elliptical, or have multiple small-diameter holes, as long as airflow is possible.

[0055] Next, the upper ventilation section 33 will be described. The upper ventilation section 33 is provided at an angle of approximately 30° to approximately 60° with respect to the surface of the connecting section 32, which is provided approximately parallel to the horizontal plane, and a ventilation opening 42 is provided therein. The configuration of the ventilation opening 42 may be the same as that of the ventilation opening 41, with one or more circular holes, or with one or more square holes.

[0056] Furthermore, in Figure 4, the positions of each ventilation opening 41 and each ventilation opening 42 are arranged to be approximately adjacent to each other. With this configuration, the air released from the space 51 below the heat shield panel through the ventilation opening 41 can quickly move into the adjacent ventilation opening 42.

[0057] Therefore, the wind can move through the heat-shielding panels 30, which are arranged in a series, one after the other, which greatly contributes to suppressing the temperature rise of the corrugated metal roof.

[0058] Furthermore, the ventilation opening 42 has the function of ventilating the space below the heat shield panel at the bottom of the main body 35 with air coming from diagonally above.

[0059] Next, the second main body support section 34 will be described. The second main body support section 34 is a part that connects to the upper ventilation section 33 with a surface that is approximately perpendicular to it. By placing the upper part of the main body section 35 on the second main body support section 34, the second main body support section 34 has the function of supporting the main body section 35.

[0060] Furthermore, since the second main body support portion 34 or the main body portion 35 is located approximately directly above the upper ventilation portion 33 when the heat shield panel 30 is installed, covering the upper ventilation portion 33 prevents foreign matter from entering the ventilation opening 42 provided in the upper ventilation portion 33.

[0061] Alternatively, the second main body support portion 34 or the main body portion 35 may be extended further toward the area directly above the connection portion 32 to cover the upper part of the connection portion 32 and prevent foreign matter from entering the ventilation opening 41.

[0062] Next, the main body 35 will be described. The main body 35 is a roughly rectangular plate, and when the heat shield panel 30 is installed on the corrugated metal roof, it is installed at an angle of approximately 30° to approximately 60° with respect to the horizontal plane.

[0063] By arranging the main body 35 at this inclination angle, the main body 35 can block and reflect sunlight, and can also guide the airflow into the space 51 below the heat shielding panel from the ventilation opening 42.

[0064] Furthermore, because the main body 35 is inclined, the space between the air inlet 42 and the air outlet 41 narrows as the wind moves. This creates a nozzle effect in relation to the movement of the wind, causing the wind to be released to the outside with increased force from the air outlet 41.

[0065] Here, depending on the width of the corrugated metal sheets in the corrugated metal roof, it is also possible to set the inclination angle beyond this range.

[0066] <Regarding the layout and ventilation mechanism> Next, the arrangement of the heat shield panel and the ventilation mechanism of this embodiment will be described with reference to Figures 5 and 6. In this embodiment, the connection hole 36 of the connection part 32 and the upper flat portion 50a of the convex portion of the corrugated roof 50 are connected by a connecting member 43 such as a bolt.

[0067] In the heat shield panel 30 of this embodiment, first, air 45 flows into the space 51 below the heat shield panel from the ventilation opening 42 of the upper ventilation section 33 (Figure 6). At this time, since the upper ventilation section 33 is arranged at an angle, it appropriately guides the air 45 coming from above the upper ventilation section 33 into the space 51 below the heat shield panel. In addition, the upper part of the upper ventilation section 33 is covered by the second main body support section 34 and the main body section 35, and the second main body support section 34 and the main body section 35 have the function of appropriately guiding the air 45 by acting as a boundary for the air 45 passing through the upper ventilation section 33.

[0068] The air 45 that flows into the space 51 below the heat shield panel then traverses the space 51 below the heat shield panel and is released to the outside through the ventilation opening 41 provided in the connection part 32.

[0069] Furthermore, in this configuration, before being discharged to the outside from the ventilation opening 41 in the space 51 below the heat shield panel, the air is discharged to the outside through the narrow ventilation opening 41, rather than through the wider space within the space 51 below the heat shield panel. As a result, pressure is applied to the air 45 within the space 51 below the heat shield panel, due to the nozzle effect.

[0070] Given this configuration, the heat-shielding panel according to this embodiment has an excellent heat-shielding effect.

[0071] [3. Embodiment 3 of a heat-shielding panel according to one embodiment of the present invention] <About the structure> Next, an embodiment 3 of the heat-shielding panel according to one embodiment of the present invention will be described. The heat-shielding panel 60 in this embodiment is installed on a corrugated metal roof, similar to the heat-shielding panels of embodiment 1 or embodiment 2, but the orientation of installation on the corrugated metal roof is different, as it is installed perpendicular to the uneven surface of the corrugated metal roof.

[0072] Specifically, as shown in Figure 7, the heat shield panel 60 consists of a first main support section 55, a connecting section 56, an upper ventilation section 57, a second main support section 58, and a main body section 59.

[0073] Furthermore, ventilation openings 73 and 74 are provided in the connecting section 56 and the upper ventilation section 57. As shown in one embodiment of Figure 7, the shape of the ventilation openings 73 and 74 is, for example, roughly rectangular, but they can be circular, elliptical, or a collection of small-diameter circular shapes, as long as ventilation is possible.

[0074] <Installation configuration and ventilation mechanism> Next, the specific arrangement of this embodiment will be described. As shown in Figure 7, the connection portion 56 of the heat shield panel is connected to the upper flat portion 70a of the protruding portion of the corrugated metal roof 70 via a connecting member 71 such as a fastener.

[0075] At this time, as shown in Figure 7, the row of connection portions 56 of the heat shield panel 60 and the row of the upper flat portion 70a of the protrusions are aligned approximately perpendicularly to each other.

[0076] Then, the first main support part 55, the connecting part 56, the upper ventilation part 57, and the second main support part 58 are arranged in order along the upper flat part 70a of the convex portion of the corrugated metal roof 70 (each part sequentially covers the upper part of the upper flat part 70a of the convex portion of the corrugated metal roof 70).

[0077] Because the panels are arranged in this manner, the wind flows along the main body 59 of the heat shield panel 60 and passes from above through the recessed space 72 below the heat shield panel, which is the recessed space of the corrugated metal roof 70. In this case as well, the wind enters the space 72 below the heat shield panel through a wide opening, and as the wind progresses, the space narrows. As a result, the winds push against each other, gain momentum due to the nozzle effect as they exit the recessed space, and are released to the outside through the vents 73. This configuration provides good ventilation efficiency.

[0078] Furthermore, the airflow can move in one direction (from left to right in Figure 7) within the space 72 below the heat shield panel. Therefore, the heat shield panel according to this embodiment has excellent ventilation and a sufficient temperature buffering effect.

[0079] In other words, in this embodiment, the movement of air occurs smoothly from left to right in Figure 7 by passing through the vents 73 and 74 and the space below the heat shield panel 72.

[0080] Furthermore, in this embodiment, although the ventilation openings 73 and 74 are shown adjacent to each other in Figure 7, the positions of the ventilation openings 73 and 74 may be offset to prevent mixing of the air passing through the ventilation opening 73 and the air passing through the ventilation opening 74.

[0081] [4. Embodiment 4 of a heat-shielding panel according to one embodiment of the present invention] <About the structure> Next, a fourth embodiment of the heat-shielding panel according to one embodiment of the present invention will be described with reference to Figure 8. As shown in Figure 8, the heat-shielding panel 80 in this embodiment is not intended to be stacked on a corrugated metal roof as described above, but rather to be installed on a flat roof such as a flat roof.

[0082] Although Figure 8 only shows one weight 90 connected to the connection hole 91 of the heat shield panel 80, the two connection holes 91 in the heat shield panel 80 are considered as one set, and a weight 90 is connected to each connection hole 91 in each set. Therefore, for example, in the heat shield panel 80 shown in Figure 8, four weights 90 will be connected.

[0083] Furthermore, although not shown in Figure 8, when the heat shield panels 80 are installed on a flat roof, multiple heat shield panels 80 are installed adjacent to each other, from left to right in Figure 8.

[0084] Next, the heat-shielding panel 80 will be described. This heat-shielding panel 80 is used by first placing a weight 90, such as a water tank weight, on the top of a flat roof, and then fixing the weight 90 and the heat-shielding panel 80 together with connecting members 95 such as bolts or nuts.

[0085] Furthermore, the weight 90 can be attached to a flat roof, and as long as a heat-shielding panel can be fixed to its upper part, its size, shape, material, etc., can be freely designed.

[0086] Furthermore, the structure of the heat shield panel 80 is generally similar to that of the heat shield panel 30 (Figure 4) described above. Specifically, the heat shield panel 80 comprises a first main body support section 81, a connecting section 82, an upper ventilation section 83, a second main body support section 84, and a main body section 85.

[0087] Furthermore, the structure and function of the first main body support section 81, the upper ventilation section 83, the second main body support section 84, and the main body section 85 are the same as those of the heat shield panel 30 in the aforementioned embodiment 2.

[0088] Furthermore, the connecting portion 82 has one or more connecting holes 91 for connecting to the weight 90, and is fixed at this portion by fasteners such as bolts or nuts. The number and form of the connecting holes 91 are not limited as long as they are in a manner that allows for sufficient fixing to the weight 90.

[0089] Furthermore, the connection section 82 is provided with a ventilation opening 86 for allowing air to circulate. As shown in one embodiment of Figure 8, the shape of the ventilation opening 86 is, as an example, roughly rectangular, but it can be circular, elliptical, or a collection of small-diameter circular shapes, as long as it allows for ventilation.

[0090] Furthermore, the upper ventilation section 83 is provided with ventilation openings 87 for allowing air to circulate. As shown in one embodiment of Figure 8, the shape of the ventilation openings 87 is, for example, roughly rectangular, but they can be circular, elliptical, or a collection of small-diameter circular shapes, as long as ventilation is possible.

[0091] <Regarding the layout and ventilation mechanism> Next, the arrangement and ventilation mechanism of Embodiment 4 will be described using Figure 9. Figure 9 is a cross-sectional view when a weight 90 is placed on a flat roof and a heat-shielding panel 80 is placed on top of the weight 90.

[0092] As shown in Figure 9, the heat shield panel 80 is fixed to the weight 90 by the top of the weight 90 and by, for example, two fixing points per connection part 82. The weight 90 is, for example, a water tank weight, but it may be of any other form as long as it can be fixed in place.

[0093] In the heat-shielding panel 80 arranged in this manner, air 96 flows from left to right in Figure 9. That is, since the main body 85 is arranged at an angle and the upper ventilation section 83 has an opening 87, air 96 flows into the space below the heat-shielding panel from the opening 87 of the upper ventilation section 83.

[0094] Furthermore, since the weights 90 are placed at intervals below the heat shield panels 80, space is created on both sides of the weights 90 for air 96 to circulate, allowing for sufficient airflow.

[0095] The air 96 that has passed through the space below the heat shield panel and on both sides of the weight 90 is then released to the outside through the ventilation opening 86 of the connection part 82 of the adjacent heat shield panel 80. At this time, although it may mix with the air 96 flowing in from the ventilation opening 87 of the upper ventilation part 83 of the adjacent heat shield panel 80, the air 96 moves successively from left to right in Figure 9 and is eventually released to the outside, thus providing a sufficient temperature change buffering effect.

[0096] Furthermore, as shown in Figure 9, in this embodiment, the airflow path for the wind 96 is stable in one direction, and appropriate airflow guidance is provided. Also, for example, when the wind 96 blows from right to left in Figure 9, the inclined main body 85 suppresses the inflow of the wind 96, preventing airflow into the space below the heat shield panel. As a result, the direction of airflow is stable, and the heat shield panel of this embodiment has a sufficient temperature buffering effect.

[0097] Furthermore, as the airflow 96 enters the space below the heat-shielding panel, the space through which the air flows gradually shrinks. As a result, as the airflow 96 progresses, pressure is applied to the airflow 96, increasing its velocity, and due to the nozzle effect, the vigorously flowing airflow 96 is released from the vent 87.

[0098] [5. Effects of a heat-shielding panel according to one embodiment of the present invention] Next, we will describe the effects and benefits of the heat-shielding panel in this embodiment.

[0099] The heat-shielding panels in this implementation can appropriately control the direction of ventilation in one direction. Therefore, proper ventilation can be achieved, and a sufficient temperature reduction can be expected in the interior space under the roof.

[0100] Furthermore, each heat-shielding panel in this embodiment can be manufactured by bending and connecting metal plates. Therefore, it can be manufactured inexpensively and is easy to use.

[0101] The embodiments described above are merely examples. Inventions that are considered to fall within the same technical scope, even with minor modifications, shall be deemed to be the same invention as the present invention. [Explanation of symbols]

[0102] 1. Heat-shielding panel 3. First connection section 4 Upper ventilation section 5 Main body 6 Lower ventilation section 7. Second connection section 20 corrugated metal roof 22 Connecting Member 30 Heat-shielding panels 31 First main body support part 32 Connection part 33 Upper ventilation section 34 Second body support part 35 Main body 50 corrugated metal roof 51 Space below the heat-shielding panel 55 First main body support part 56 Connection part 57 Upper ventilation section 58 Second body support part 59 Main body 60 Heat-shielding panels 70 corrugated metal roof 71 Connecting Member 80 Heat-shielding panels 81 First main body support part 82 Connection part 83 Upper ventilation section 84 Second body support part 85 Main body

Claims

1. A heat-shielding panel that covers a roof structure having a regular uneven surface and has a temperature change buffering function that buffers temperature changes in the interior space of a building equipped with the roof structure, The heat shielding panel has a first connecting portion for connecting to the upper flat surface of one protrusion of the roof structure, A second connecting portion for connecting to the upper flat surface of the other protrusion, not the one protrusion, of the roof structure, An upper ventilation section having vents for ventilation, A main body portion for shielding sunlight, which is inclined at a certain angle with respect to the surface forming the first connection portion, A lower ventilation section having vents for ventilation, Equipped with, The upper ventilation section and the lower ventilation section are inclined at the same constant angle. A heat-shielding panel featuring the following characteristics.

2. The first connecting portion connects the upper flat surface of the protrusion, Furthermore, by connecting the second connecting portion and the upper flat surface of the other protrusion, A heat-shielding structure comprising a heat-shielding panel according to claim 1, arranged in the roof structure.

3. A heat-shielding panel that covers a roof structure having a regularly uneven surface, or a roof structure connected to members regularly arranged on the roof, and having a buffering function to buffer temperature changes in the interior space of a building equipped with the roof structure, A first main body support portion that supports another heat shield panel, which is arranged adjacent to the aforementioned heat shield panel, A connection section having at least one connection hole for connecting to the roof structure and a ventilation opening for ventilation, An upper ventilation section is provided with ventilation openings for ventilation into the space beneath the heat shield panel, and is inclined at a constant angle with respect to the connection section, A second main body support portion that supports the main body portion of the heat shield panel, The main body portion for shielding sunlight is inclined at a certain angle relative to the connection portion, A heat-shielding panel characterized by having the following features.

4. By connecting the aforementioned connection part to the roof structure or the aforementioned member, A heat-shielding structure comprising a heat-shielding panel according to claim 3, arranged on the roof structure or the member.

5. A weight is placed on the flat roof, and the heat-shielding panel described in claim 3 is placed on top of the weight. A heat-shielding structure characterized by the following.

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