Sound insulation wall, supporting member, and construction method

Abstract

To provide a technology that enables relatively easy installation of solar cell panels on sound insulation walls.SOLUTION: A sound insulation wall includes multiple pillars having H-shaped cross section erected along a road and sound insulation panels supported between the pillars; there are solar cell panels disposed between the pillars so as to face the sound insulation panels in the width direction of the road, and supporting members provided at each end of the solar cell panels in the extension direction of the road for supporting the solar cell panels on the pillars; the supporting member includes a panel mounting portion supporting the end part of the solar cell panel, and a flange mounting portion that extends in the vertical direction and has a groove into which the flange of the pillar is inserted.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a road noise barrier. [Background technology]

[0002] Various types of solar cell modules have been proposed. For example, Patent Documents 1 and 2 disclose bifacial solar cell modules in which both sides of a panel-shaped solar cell module are light-receiving surfaces. Patent Document 3 also proposes a solar cell module called a see-through or light-through type, which has improved transparency in the thickness direction.

[0003] Various applications of solar cell modules have also been proposed. For example, Patent Document 4 discloses a technique for installing solar cell panels on road noise barriers. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2023-72989 [Patent Document 2] Patent No. 2022-153854 [Patent Document 3] Japanese Patent Application Publication No. 2017-093054 [Patent Document 4] Japanese Patent Application Publication No. 10-18467 Summary of the Invention [Problem to be solved by the invention]

[0005] Since road noise barriers are installed over long distances, ease of construction is required. Furthermore, if solar panels could be installed on existing noise barriers, the use of solar panels could be expanded.

[0006] An object of the present invention is to provide a technique that allows solar cell panels to be installed on a sound insulating wall relatively easily. [Means for solving the problem]

[0007] According to the present invention, Multiple H-shaped columns erected along the road, a sound-insulating panel supported between the columns; A sound insulating wall comprising: a solar cell panel disposed between the support pillars so as to face the sound-insulating panel in the width direction of the road; a support member provided at each end of the solar cell panel in the extension direction of the road, for supporting the solar cell panel on the support pole; The support member is a panel mounting portion that supports the end portion of the solar cell panel; a flange mounting portion extending in the vertical direction and having a groove into which the flange of the support column is inserted; A sound insulating wall is provided. [Effects of the Invention]

[0008] According to the present invention, a technique can be provided that allows solar cell panels to be installed on a sound insulating wall relatively easily. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is an explanatory diagram of a sound insulating wall according to an embodiment of the present invention. [Figure 2] (A) and (B) are elevation views of the sound barrier. [Figure 3] Cross-section of the noise barrier along line AA in Figure 2. [Figure 4] FIG. [Figure 5] FIG. 10 is an explanatory diagram showing an example of a method for installing a solar cell unit. [Figure 6] 10 is a cross-sectional view of a sound insulating wall showing another example of the configuration of the support member. FIG. [Figure 7] FIG. 7 is a perspective view of the support member of FIG. 6. [Figure 8]7(A) and 7(B) are explanatory diagrams showing an example of a method for installing a solar cell panel using the support member of FIG. 6. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the scope of the invention as claimed, and not all combinations of features described in the embodiments are necessarily essential to the invention. Two or more of the features described in the embodiments may be arbitrarily combined. Furthermore, the same reference numerals are used for the same or similar components, and redundant explanations will be omitted.

[0011] First Embodiment FIG. 1 is an explanatory diagram showing an example of application of sound insulating walls 1A and 1B according to one embodiment of the present invention to a road 100. In this embodiment, an example of application of sound insulating walls 1A and 1B to a straight section of road 100 is illustrated, but the present invention can also be applied to curved sections. In each drawing, arrows X and Y indicate horizontal directions that are perpendicular to each other, and arrow Z indicates the up-down direction. In this embodiment, the X direction indicates the width direction of road 100, and the Y direction indicates the extension direction of road 100 (the direction in which vehicles travel). In the example of FIG. 1, sound insulating walls 1A and 1B are erected at one end of road 100 in the width direction, and 1B at the other end, and road 100 is sandwiched between sound insulating walls 1A and 1B. Sound insulating walls 1A and 1B can reduce the propagation of noise emitted by vehicles traveling on road 100 outside of road 100.

[0012] The sound insulating walls 1A and 1B are arranged in a position where the sound insulating wall 1A is farther away in the X direction than the sound insulating wall 1B with respect to the sun 200. The side of the sound insulating walls 1A and 1B facing the road 100 will be called the inside, and the opposite side will be called the outside. Houses may be located outside each of the sound insulating walls 1A and 1B. Because sunlight shines into the sound insulating wall 1A from the inside, the outside may be in shade. To ensure sunlight reaches the houses, the sound insulating wall 1A is required to be transparent. On the other hand, because sunlight shines into the sound insulating wall 1B from the outside, the inside may be in shade. However, because the inside of the sound insulating wall 1B is the road 100, it does not affect the sunlight reaching the houses. Therefore, the sound insulating wall 1B is not required to be transparent (although it may, of course, have the same transparency as the sound insulating wall 1A).

[0013] Each of the sound-insulating walls 1A and 1B includes a sound-insulating panel 3 and a solar cell panel 5 supported by supports 2. By providing the solar cell panel 5, the sound-insulating walls 1A and 1B can also be used as a power generation device. In the sound-insulating wall 1A, the sound-insulating panel 3 is located on the inside and the solar cell panel 5 on the outside. While the solar cell panel 5 may be located on the inside and the sound-insulating panel 3 on the outside, the arrangement of this embodiment prevents the solar cell panel 5 from being damaged by flying stones from the road 100. As described above, transparency is required for the sound-insulating wall 1A, and therefore a transparent panel (e.g., a polycarbonate plate) is used for the sound-insulating panel 3. Even if the sound-insulating panel 3 is interposed between the solar cell panel 5 and the sun 200, a sufficient amount of light can be received by the solar cell panel 5. Naturally, sunlight (reflected light) from outside the sound-insulating wall 1A can also be expected.

[0014] In the sound insulating wall 1B as well, the sound insulating panel 3 is positioned on the inside and the solar cell panel 5 on the outside. Although the solar cell panel 5 may be positioned on the inside and the sound insulating panel 3 on the outside, the arrangement in this embodiment can prevent the solar cell panel 5 from being damaged by flying stones from the road 100, etc. As described above, transparency is not required for the sound insulating wall 1B, so a metal plate or the like can be used for the sound insulating panel 3, thereby improving sound insulating performance. As the sound insulating panel 3 is not interposed between the solar cell panel 5 and the sun 200, a sufficient amount of light can be received by the solar cell panel 5.

[0015] The structure of the sound insulating wall 1A will be explained in more detail below, but the sound insulating wall 1B also has a similar structure. Fig. 2(A) is an elevation view of the sound insulating wall 1A as seen from the direction of arrow X1 in Fig. 1 (i.e., as seen from the inside), and Fig. 2(B) is an elevation view of the sound insulating wall 1A as seen from the direction of arrow X2 in Fig. 2 (i.e., as seen from the outside). The sound insulating wall 1A has a plurality of supporting pillars 2 erected along the road 100. The plurality of supporting pillars 2 are arranged, for example, at equal intervals in the Y direction.

[0016] As shown in Fig. 2(A), the sound-insulating panel 3 is supported between adjacent support columns 2, and covers the entire inner side surface of the sound-insulating wall 1A. As shown in Fig. 2(B), a plurality of solar cell units 4 are provided on the outer side surface of the sound-insulating wall 1A. The solar cell units 4 are units including a solar cell panel 5, and in this embodiment, one solar cell unit 4 is equipped with one solar cell panel 5. The solar cell units 4 are supported between adjacent support columns 2, and in this embodiment, three rows of solar cell units 4 are supported vertically between one set of support columns 2. The outer side surface of the sound-insulating wall 1A is entirely covered by the solar cell units 4, and in particular, the support columns 2 are also covered with the solar cell units 4 except for the top and bottom portions, improving the appearance.

[0017] 3 is a cross-sectional view of the sound-insulating wall 1A taken along line AA in FIG. 2. The support pillar 2 is a member having an H-shaped cross section (horizontal cross section), such as an H-shaped steel beam. The support pillar 2 has a pair of flanges 21 spaced apart in the X direction and a web 22 connecting the pair of flanges 21. The sound-insulating panel 3 is a rectangular member, and each end of the sound-insulating panel 3 in the Y direction is inserted between the pair of flanges 21. A metal fitting 30 is provided between the pair of flanges 21 to bias the sound-insulating panel 3 toward the road 100. The metal fitting 30 is, for example, a leaf spring bent into a wedge shape, and has an opening 31 through which a wire for preventing the sound-insulating panel 3 from falling. By biasing the sound-insulating panel 3 toward the road 100 by the metal fitting 30, a gap is formed between the sound-insulating panel 3 and the outer flange 21 of the pair of flanges 21.

[0018] The configuration of the solar cell unit 4 will be described with reference to Fig. 4 in addition to Fig. 3. Fig. 4 is a perspective view of the solar cell unit 4. The solar cell unit 4 includes a rectangular solar cell panel 5 and a rectangular frame (sash) 6 that surrounds the solar cell panel 5. The solar cell panel 5 is supported between the support columns 2 via the frame 6.

[0019] The solar cell panel 5 has a thin rectangular parallelepiped shape with an outer side surface 51, an inner side surface 52, and side surfaces 53 in the Y direction. The solar cell panel 5 is supported so as to face the sound-insulating panel 3 in the X direction, and in this embodiment, is supported parallel to the sound-insulating panel 3. The solar cell panel 5 also has a cell layer 5a on which solar cell cells are provided, and a pair of cover glasses 5b that sandwich the cell layer 5a.

[0020] As described above, the sound insulating wall 1A is required to be transparent. In this embodiment, the solar cell panel 5 is a see-through solar cell panel. Because the solar cell panel 5 is transparent in its thickness direction (X direction), sunlight from the sun 200 passes through the transparent sound insulating panel 3 and then through the solar cell panel 5 to enter the outside of the sound insulating wall 1A. This ensures sunlight for surrounding houses. Since the outside scenery can be seen from the road 100 side, vehicle occupants also have a good view. The solar cell panel 5 is also a bifacial solar cell panel. In addition to sunlight that passes through the side surface 52 from the sound insulating panel 3 side and enters the cell layer 5a, sunlight (diffused light) that passes through the side surface 51 from the outside of the sound insulating wall 1A and enters the cell layer 5a can also be used for power generation.

[0021] As mentioned above, since sound-insulating wall 1B is not required to be transparent, its solar cell panel 5 does not need to be a see-through type, and may be a single-sided solar cell panel configured to receive sunlight incident from outside sound-insulating wall 1B.

[0022] The frame body 6 is a member made of metal such as aluminum, and includes an upper frame 61 that extends in the Y direction and covers the solar cell panel 5 from above, and a lower frame 62 that extends in the Y direction and covers the solar cell panel 5 from below. Openings 61a that open in the Z direction are formed at both ends of the upper frame 61 in the Y direction, and openings 62a that open in the Z direction are formed at both ends of the lower frame 62 in the Y direction. The openings 61a and 62a are formed at positions that overlap in the Z direction, and these openings 61a and 62a can be used to route the wiring cables of the solar cell panel 5 in the Z direction.

[0023] The frame 6 has support members 7L and 7R. The solar cell unit 4 is supported on the outside of the flange 21 by the support members 7L and 7R. However, similar to the sound insulating wall 3, a configuration in which the solar cell unit 4 is disposed between a pair of flanges 21 can also be employed.

[0024] The support member 7L has a panel mounting portion 63 and a flange mounting portion 65. The panel mounting portion 63 extends in the Z direction, forming a vertical frame between the upper frame 61 and the lower frame 62, and supporting the Y-direction end of the solar cell panel 5. The panel mounting portion 63 has a U-shaped groove 63a in horizontal cross section that extends in the Z direction, and the Y-direction end of the solar cell panel 5 is inserted into this groove 63a to support it. Sealing materials 8 extending in the Z direction are provided between the side surfaces 51 and 52 of the solar cell panel 5 and the side walls of the groove 63a. The side surface 53 of the solar cell panel 5 and the bottom of the groove 63a are separated by a distance D, forming a space between the side surface 53 and the bottom. This space can be used as a routing space for the distribution cable of the solar cell panel 5.

[0025] The flange mounting portion 65 is a member extending in the Z direction across the upper frame 61, the panel mounting portion 63, and the lower frame 62, and is fixed to the panel mounting portion 63. The flange mounting portion 65 has a U-shaped horizontal cross section and forms a groove 65a extending in the Z direction. The Y-direction end of the flange 21 is inserted into this groove 65a, and the solar cell unit 4 is supported on the support 2. The flange mounting portion 65 also has a plate-shaped cover portion 65b that protrudes in the Y direction from the panel mounting portion 63 and extends in the Z direction so as to overlap with the flange 21. The cover portion 65b functions as a decorative panel that covers the flange 21, improving the design of the solar cell unit 4 when viewed from the outside of the sound insulating wall 1A.

[0026] The support member 7R has a panel mounting portion 64 and a flange mounting portion 66, and has a structure similar to that of the support member 7L, but with a symmetrical configuration. The panel mounting portion 64 extends in the Z direction, forming a vertical frame between the upper frame 61 and the lower frame 62, and supporting the Y-direction end of the solar cell panel 5. The panel mounting portion 64 has a U-shaped groove 64a in horizontal cross section that extends in the Z direction. The Y-direction end of the solar cell panel 5 is inserted into this groove 64a for support. Sealing materials 8 extending in the Z direction are provided between the side surfaces 51 and 52 of the solar cell panel 5 and the side walls of the groove 64a. The side surface 53 of the solar cell panel 5 and the bottom of the groove 64a are separated by a distance D, forming a space between the side surface 53 and the bottom. This space can be used as a routing space for the distribution cable of the solar cell panel 5.

[0027] The flange mounting portion 66 is a member extending in the Z direction across the upper frame 61, panel mounting portion 63, and lower frame 62, and is fixed to the panel mounting portion 64. The flange mounting portion 66 has a U-shaped horizontal cross section and a groove 66a extending in the Z direction. The Y-direction end of the flange 21 is inserted into this groove 66a, supporting the solar cell unit 4 on the support 2. The flange mounting portion 65 also has a plate-shaped cover portion 66b that protrudes in the Y direction from the panel mounting portion 64 and extends in the Z direction to overlap the flange 21. The cover portion 66b functions as a decorative panel that covers the flange 21, improving the design of the solar cell unit 4 from the outside of the sound insulating wall 1A. The end of the cover portion 66b is bent in an L shape and overlaps the end of the cover portion 65b in the X direction, improving the appearance.

[0028] FIG. 5 shows an example of a method for installing a solar cell unit 4 on a support 2. The illustrated example is a schematic illustration of a construction example in which a solar cell unit 4 is added to an existing sound insulation wall 1'. On expressways and the like, sound insulation walls cover long sections of several kilometers or more, so sound insulation wall construction must be easy. The solar cell unit 4 of this embodiment has the advantage that it can be easily installed not only on newly constructed sound insulation walls, but also on existing sound insulation walls 1' that do not have solar cell panels 5 installed.

[0029] The example in Figure 5 shows how a solar cell unit 4 fabricated in advance in a factory is picked up by a crane 10 and installed between the support pillars 2. The solar cell unit 4 is placed in its vertical installation position, and the grooves 65a, 66a of the flange mounting portions 65, 66 are aligned with the flanges 21 of the adjacent support pillars 2. The solar cell unit 4 is then lowered by the crane 10 so that the corresponding flanges 21 are inserted into the grooves 65a, 66a. Cushioning material may be placed between the upper and lower solar cell units 4 as needed.

[0030] This completes the installation of one solar cell unit 4. Thereafter, the other solar cell units 4 are installed using the same procedure, and the construction is completed by performing work such as routing the wiring cables and connecting them to the power storage device. The solar cell units 4 are lowered by using the crane 10 to insert the corresponding flanges 21 into each groove 65a, 66a, so the solar cell panels 5 can be installed relatively easily on the existing sound insulation wall 1'. Since the construction work is performed outside the sound insulation wall 1', there is no need to enter the road 100, and therefore the impact on the operation of the road 100 is limited to lane restrictions, and no road closures are required.

[0031] 5, the solar cell units 4 are installed one by one between the support pillars 2, but it is also possible to connect a plurality of solar cell units 4 vertically in advance (for example, three levels in the example of FIG. 2(B)), and install these solar cell units 4 all at once between the support pillars 2. When newly constructing sound insulating walls 1A, 1B, after erecting the support pillars 2, the installation of either the sound insulating panels 3 or the solar cell units 4 may be carried out first, or may be carried out substantially simultaneously.

[0032] Second Embodiment In the first embodiment, a frame 6 is provided and the support members 7L, 7R are formed as part of the frame 6, but it is also possible to eliminate the need for a frame and to form the support members as separate members. Fig. 6 is a cross-sectional view of a sound insulating wall 1A in this embodiment, and corresponds to the cross-sectional view of Fig. 3. Fig. 7 is a perspective view of a support member 7A.

[0033] The support member 7A of the present embodiment is a member including a flange mounting portion 67 corresponding to the flange mounting portions 65 and 66 of the first embodiment, and panel mounting portions 63 and 64 corresponding to the panel mounting portions 63 and 64 of the first embodiment. The flange mounting portion 67 forms grooves 65a and 66a corresponding to the grooves 65a and 66a of the first embodiment, and the panel mounting portions 63 and 64 form grooves 63a and 64a corresponding to the grooves 63a and 64a of the first embodiment.

[0034] 8(A) and 8(B) show an example of a construction method. This embodiment can also be applied to both existing and newly constructed sound insulation walls. As shown in FIG. 8(A), first, a support member 7A is attached to each support pillar 2. The support member 7A is picked up by a crane 10, and the grooves 65a and 66a of the flange mounting portion 67 are aligned with the flanges 21 of the support pillar 2. The crane 10 then lowers the support pillar 2 so that the flanges 21 are inserted into the grooves 65a and 66a. In this embodiment, one support member 7A is attached to one support pillar 2, but if the support member 7A is too long and difficult to handle, it may be shortened and multiple support members 7A may be attached to one support pillar 2, one above the other.

[0035] Next, as shown in FIG. 8(B), the solar cell panel 5 is picked up by the crane 10 and installed between the support columns 2. The solar cell panel 5 is placed in its vertical installation position, and each end of the solar cell panel 5 is aligned with the grooves 63a, 64a of the panel mounting portions 63, 64. The solar cell panel 5 is then lowered by the crane 10 so that each end of the solar cell panel 5 is inserted into the corresponding groove 63a, 64a. The sealing material 8 may be fixed to the solar cell panel 5 in advance, or may be fixed to the grooves 63a, 64a in advance. Alternatively, the sealing material 8 may be inserted between the solar cell panel 5 and the grooves 63a, 64a after the solar cell panel 5 is inserted into the grooves 63a, 64a. Cushioning material may be interposed between the upper and lower solar cell panels 5, as needed.

[0036] This completes the installation of one solar cell panel 5. Thereafter, the other solar cell panels 5 are installed in the same manner, and the installation is completed by installing the wiring cables and connecting them to the power storage device. As with the first embodiment, installation is simple.

[0037] Although the embodiments of the invention have been described above, the invention is not limited to the above-described embodiments, and various modifications and variations are possible within the scope of the gist of the invention. [Explanation of symbols]

[0038] 1A Sound insulation wall, 2 Support, 3 Sound insulation panel, 5 Solar panel, 7L Support member, 7R Support member, 7A Support member

Claims

1. A number of H-shaped columns erected along the road, A sound insulation panel supported between the pillars; A sound insulating wall comprising: A solar panel is disposed between the pillars so as to face the sound insulation panel in the width direction of the road; a support member provided at each end of the solar panel in the extension direction of the road for supporting the solar panel on the support pole; The support member is a panel mounting portion for supporting the end portion of the solar panel; and a flange mounting portion extending in the vertical direction and having a groove into which the flange of the support column is inserted. A sound insulation wall characterized by:

2. The sound insulating wall according to claim 1, The panel mounting portion extends in the vertical direction and has a groove into which the end of the solar cell panel is inserted. A sound insulation wall characterized by:

3. The sound insulating wall according to claim 1, A bottom of the groove of the panel mounting portion and a side surface of the end of the solar panel in the extension direction of the road are spaced apart. A sound insulation wall characterized by:

4. The sound insulating wall according to claim 1, A frame body that surrounds the solar cell panel, The support member is a part of the frame body. A sound insulation wall characterized by:

5. The sound insulating wall according to claim 1, The support member is The panel mounting portion includes a first panel mounting portion that supports the end portion of one of the two solar cell panels arranged adjacent to each other in the extension direction of the road, and a second panel mounting portion that supports the end portion of the other solar cell panel. A sound insulation wall characterized by:

6. The sound insulating wall according to claim 1, The solar panel is disposed on the outside of the road relative to the sound insulation panel. A sound insulation wall characterized by:

7. The sound insulating wall according to claim 1, The sound-insulating panel is a transparent panel, The solar cell panel is a bifacial see-through solar cell panel. A sound insulation wall characterized by:

8. A sound insulation wall including a plurality of pillars having an H-shaped cross section erected along a road and a sound insulation panel supported between the pillars, the support members being provided at each end in the extension direction of the road for a solar cell panel disposed between the pillars so as to face the sound insulation panel in the width direction of the road, a panel mounting portion for supporting the end portion of the solar panel; and a flange mounting portion extending in the vertical direction and having a groove into which the flange of the support column is inserted. A support member characterized by:

9. A construction method for installing solar panels between a plurality of supports having an H-shaped cross section erected along a road, comprising the steps of: a step of installing the solar cell panel between the pillars via support members provided at each end of the solar cell panel in the extension direction of the road; The support member is a panel mounting portion for supporting the end portion of the solar panel; and a flange mounting portion extending in the vertical direction and having a groove into which the flange of the support column is inserted. A construction method characterized by the above.

10. The construction method according to claim 9, The plurality of pillars constitute an existing sound insulation wall, and sound insulation panels are supported between the pillars. A construction method characterized by the above.

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