Solar power generation device mounting structure

Abstract

To provide an attachment structure of a solar power generation device which enables improvement of vibration resistance and earthquake resistance to vibration etc.SOLUTION: An attachment structure attaches a solar power generation device 20 to an attached member 10 having a curved surface and includes: the attached member 10 installed in a movable body; a solar power generation device 20; and a power distribution part 30. The power distribution part 30 has a protruding part 32 protruding in a substantially horizontal direction. The attached member 10 has a recessed part 13. A bottom part 13a of the recessed part 13 and a lower surface 32a of the protruding part 32 contact with each other.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present invention relates to a mounting structure for a solar power generation device. [Background technology]

[0002] The use of solar power generation equipment is being considered from the perspective of reducing CO2 emissions and improving the global environment, in order to prevent climate-related disasters. Patent Document 1 proposes a structure in which solar cells are attached to the outer surface of a vehicle body. Patent Document 2 proposes a module in which solar cells are attached to a curved light-transmitting plate. Patent Document 3 proposes a method of mounting a resin solar roof module on the roof of a vehicle body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-181483 [Patent Document 2] Japanese Patent Application Publication No. 3-204979 [Patent Document 3] Japanese Patent Application Publication No. 2019-47631 Summary of the Invention [Problem to be solved by the invention]

[0004] When a solar power generation device is installed on a moving body such as a vehicle, vibrations and the like may occur in the moving body. There has been a demand for improvements in the vibration resistance and earthquake resistance of solar power generation devices against vibrations and the like.

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mounting structure for a solar power generation device that can improve vibration resistance and earthquake resistance against vibrations and the like. [Means for solving the problem]

[0006] The first aspect is an attachment structure for a solar power generation device (e.g., solar power generation device 20 in the embodiments) to an attachment member having a curved surface (e.g., attachment member 10 in the embodiments), and includes an attachment member to be installed on a mobile body, a solar power generation device, and a power distribution unit (e.g., power distribution unit 30 in the embodiments), wherein the power distribution unit has a protrusion (e.g., protrusion 32 in the embodiments) that protrudes in an approximately horizontal direction, and the attachment member has a recess (e.g., recess 13 in the embodiments), and the bottom of the recess (e.g., bottom 13a in the embodiments) and the underside of the protrusion (e.g., underside 32a in the embodiments) are in contact with each other.

[0007] The second aspect is a mounting structure for a solar power generation device in which, in the first aspect, the upper surface of the protrusion (e.g., upper surface 32b in the embodiment) is in contact with the lower surface of the solar power generation device (e.g., lower surface 22 in the embodiment).

[0008] A third aspect is a mounting structure for a solar power generation device in which, in the first or second aspect, the upper surface of the mounting member (for example, upper surface 11 in the embodiment) is in contact with the lower surface of the solar power generation device.

[0009] A fourth aspect is an attachment structure for a solar power generation device in any one of the first to third aspects, wherein the protrusion has an extension portion extending downward (e.g., extension portion 33 in the embodiment), the recess has a through hole (e.g., through hole 16 in the embodiment), and the extension portion is positioned within the through hole. [Effects of the Invention]

[0010] According to the first aspect, the underside of the protrusion that protrudes approximately horizontally from the power distribution unit is in contact with the bottom of the recess in the attached member, thereby improving vibration resistance and earthquake resistance against vibrations, etc.

[0011] According to the second aspect, the upper surface of the protrusion that protrudes substantially horizontally from the power distribution section is in contact with the lower surface of the solar power generation device, thereby further improving vibration resistance and earthquake resistance against vibrations and the like.

[0012] According to the third aspect, the upper surface of the attachment member and the lower surface of the solar power generation device are in contact with each other, so that vibration resistance and earthquake resistance against vibrations and the like can be further improved.

[0013] According to the fourth aspect, the protrusion protruding approximately horizontally from the power distribution unit has an extension extending downward, and this extension is positioned within a through hole formed in the recess of the attachment member, thereby making it easy to position the power distribution unit relative to the attachment member. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is an exploded perspective view showing an example of a mounting structure for a solar power generation device. [Figure 2] FIG. 1 is a perspective view showing an example of a mounting structure for a solar power generation device. [Figure 3] FIG. 1 is a top view showing an example of a mounting structure for a solar power generation device. [Figure 4] FIG. 1 is a top view illustrating an example of a solar power generation device. [Figure 5] FIG. 2 is a top view showing an example of a mounting member. [Figure 6] FIG. 6 is a cross-sectional view of the solar power generation device taken along line VI-VI in FIG. [Figure 7] 7 is a side view showing an example of the attached member taken along the arrow VII in FIG. 5. FIG. [Figure 8] 8 is a cross-sectional view of the attached member taken along line VIII-VIII in FIG. 5. [Figure 9] FIG. 2 is a cross-sectional view taken along line IX-IX in FIG. [Figure 10] FIG. 2 is a cross-sectional view showing a first example of a main part of an attachment structure. [Figure 11] FIG. 10 is a cross-sectional view showing a second example of the main part of the mounting structure. [Figure 12]FIG. 10 is a bottom view showing an example of an attachment structure. [Figure 13] FIG. 4 is an enlarged top view showing a recess of the attachment member. [Figure 14] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0015] The present invention will be described below based on preferred embodiments with reference to the drawings. In the drawings, an arrow FR indicating the forward direction and an arrow L indicating the left direction are shown where appropriate to indicate directions on a moving body such as a vehicle. Unless otherwise specified, the directions of front / rear, left / right, up / down, etc. in the following description are the same as the directions on the moving body.

[0016] 1 to 3 show an attachment structure of an embodiment, with Fig. 1 being an exploded perspective view, Fig. 2 being a perspective view, and Fig. 3 being a top view. The attachment structure of the embodiment is a structure for attaching a solar power generation device 20 to an attachment base 10. Fig. 1 shows the solar power generation device 20 having a power distribution section 30 separated from the attachment base 10.

[0017] The attachment member 10 is installed on a moving body (not shown). The moving body is not particularly limited, but may be a land moving body, a water moving body, an underwater moving body, an air moving body, etc., and more specifically, examples include vehicles such as automobiles and railroad cars, ships, and airplanes. The moving body may be a manned moving body or an unmanned moving body. The moving body may be transportation equipment. When a driver rides in the moving body, the driver's seat may be located at the front of the moving body.

[0018] The attachment member 10 may be installed on a self-propelled mobile body, or on a towed mobile body that is towed by another mobile body. The self-propelled mobile body may also be a towed mobile body that tows another mobile body.

[0019] The self-propelled vehicle may be equipped with an electric motor and a drive means such as a wheel, a screw, or a propeller driven by the electric motor. The self-propelled vehicle may further be equipped with an internal combustion engine. The self-propelled vehicle may use both an electric motor and an internal combustion engine. The towed vehicle may be equipped with wheels when traveling on land.

[0020] The solar power generation device 20 is, for example, a solar cell module (photovoltaic module) and has a power generation function through photoelectric conversion. For example, when outdoors, the solar power generation device 20 converts solar energy into electricity. The solar power generation device 20 may also receive illumination light or the like. At least a portion of the electric power obtained by the solar power generation device 20 may be supplied to an electric motor or a storage battery.

[0021] The attachment member 10 may be installed on the top of a mobile object, such as a roof, or on an upper surface that covers at least a portion of the mobile object, such as a hood. The attachment member 10 in the illustrated example is a roof panel. The attachment member 10 may be a molded body formed into a three-dimensional shape using a molding material such as metal or resin. The attachment member 10 may also be molded into a curved surface using a flat material such as sheet metal or resin sheet.

[0022] The upper surface of the mobile body on which the solar power generation device 20 is installed may be a horizontal surface facing vertically upward, or may be inclined in an appropriate direction such as forward, backward, left, or right. When multiple mounting members 10 are installed on the outer surface of the mobile body, the solar power generation device 20 may be mounted to multiple mounting members 10. The upper surface 11 of the mounting member 10 and the upper surface 21 of the solar power generation device 20 are arranged along the upper surface of the mobile body.

[0023] The workpiece 10 has at least a curved surface. A part of the workpiece 10 may include a flat surface. The curved surface may be a convex surface that is convex when viewed from the top surface 11 side, or a concave surface that is concave when viewed from the top surface 11 side. The workpiece 10 may include a convex surface and a concave surface. The curved surface may be curved over the entire workpiece 10, or may include a locally curved surface in a part of the workpiece 10. The curved surface may be part of a streamlined shape on the surface of a moving body. The workpiece 10 may have curved surfaces in two or more places. The workpiece 10 may have a bent portion where surfaces facing different directions meet.

[0024] Fig. 4 shows the top surface of the solar power generation device 20, and Fig. 5 shows the top surface of the mounting member 10. Fig. 6 shows a cross section taken along line VI-VI in Fig. 4, Fig. 7 shows a side view taken along arrow VII in Fig. 5, Fig. 8 shows a cross section taken along line VIII-VIII in Fig. 5, and Fig. 9 shows a cross section taken along line IX-IX in Fig. 1.

[0025] The upper surface 21 of the solar power generation device 20 includes a light-receiving surface (not shown) having a power generation element. The type of power generation element is not particularly limited and can be appropriately selected from silicon, compound semiconductors, inorganic materials, organic materials, etc. The surface of the power generation element may be covered with a light-transmitting protective layer (not shown).

[0026] In the illustrated example, the mounting member 10 has a mounting portion 12 for the solar power generation device 20 formed on its upper surface 11. As shown in FIG. 1 , the mounting portion 12 in the illustrated example is formed in a concave shape along the contour of the solar power generation device 20. The upper surface 11 of the mounting member 10 is disposed along the lower surface 22 of the solar power generation device 20. The solar power generation device 20 may have a curved surface that fits along the mounting member 10.

[0027] The lower surface 22 of the solar power generation device 20 is the surface opposite to the upper surface 21. A power distribution unit 30 is disposed on the lower surface 22 of the solar power generation device 20. Examples of the power distribution unit 30 include a junction box, a connector, etc. used for electrical connection of the solar power generation device 20. The power distribution unit 30 may include, for example, a terminal (not shown). As shown in FIG. 6 , a plurality of power distribution units 30 may be disposed on the lower surface 22 of the solar power generation device 20.

[0028] The solar power generation device 20 may have, at least on a part of its outer periphery, a side wall 23 that protrudes downward from the lower surface 22. The power distribution unit 30 may be included in the solar power generation device 20 within the range of the height of the side wall 23.

[0029] The attached member 10 has a recess 13. In the illustrated example, the recess 13 is disposed inside the attachment portion 12. As shown in FIG. 5, the recess 13 is formed to correspond to the number and position of the power distribution portions 30. The recess 13 is formed in a concave shape when viewed from the top surface 11. It is preferable that the recess 13 includes a curved surface. For example, the recess 13 may be formed so as to gradually curve downward from the top surface 11.

[0030] 6 and 9 has a protruding portion 32 that protrudes in a substantially horizontal direction from a main body 31 of the power distribution portion 30. The protruding portion 32 may, for example, protrude. The substantially horizontal direction is not limited to a horizontal direction perpendicular to the up-down direction, but may be a direction along at least one of the upper surface 21 or the lower surface 22 of the solar power generation device 20.

[0031] 1 and 2, the protrusions 32 of the power distribution unit 30 are formed around the main body 31. The protrusions 32 may be formed in at least two directions around the main body 31, may be formed facing each other in the front-rear or left-right directions, or may be formed in four directions, i.e., in the front-rear and left-right directions. In the illustrated example, the protrusions 32 are formed in a flange shape around the entire periphery of the main body 31.

[0032] The main body 31 of the power distribution unit 30 may be disposed within the opening 14 of the recess 13 of the mounting member 10. The upper surface 34 of the power distribution unit 30 may be disposed along the lower surface 22 of the solar power generation device 20.

[0033] Figures 10 and 11 show first and second examples of the main parts of the mounting structure. Figure 12 shows the underside of the mounting structure. Figure 13 shows an enlarged view of recess 13 of the second example from the top surface 11 side. Figure 14 shows an enlarged view of power distribution unit 30 placed in recess 13 of the second example from the bottom surface 15 side.

[0034] The recess 13 has a bottom 13a. The attachment member 10 has a height difference between the upper surface 11 and the bottom 13a of the recess 13 that is sufficient to accommodate the protrusion 32 of the power distribution unit 30. The recess 13 may include an opening 14 that penetrates between the upper surface 11 and the lower surface 15 of the attachment member 10. The bottom 13a may be the peripheral edge of the opening 14.

[0035] 10 and 11, the power distribution unit 30 is attached so that the bottom 13a of the recess 13 and the lower surface 32a of the protrusion 32 are in contact with each other. This improves the vibration resistance and earthquake resistance of the solar power generation device 20 against vibrations and the like. At least a portion of the lower surface 32a of the protrusion 32 may be in contact with the bottom 13a of the recess 13.

[0036] 9, the power distribution unit 30 is preferably attached so that the upper surface 32b of the protrusion 32 contacts the lower surface 22 of the solar power generation device 20. This can further improve the vibration resistance and earthquake resistance of the solar power generation device 20 against vibrations and the like. At least a part of the upper surface 32b of the protrusion 32 may contact the lower surface 22 of the solar power generation device 20.

[0037] 10 and 11, the solar power generation device 20 is preferably mounted so that the upper surface 11 of the mounting member 10 and the lower surface 22 of the solar power generation device 20 are in contact with each other. This further improves the vibration resistance and earthquake resistance of the solar power generation device 20 against vibrations and the like. At least a portion of the lower surface 22 of the solar power generation device 20 may be in contact with the upper surface 11 of the mounting member 10.

[0038] The second example of the power distribution unit 30 has an extension 33 extending downward from the protrusion 32. The upper end of the extension 33 is in contact with the protrusion 32. The lower end of the extension 33 forms a cantilevered tip. The extension direction of the extension 33 is approximately vertical. The extension direction of the extension 33 may be approximately perpendicular to the upper surface 11 of the attachment member 10 or the upper surface 34 of the power distribution unit 30. When the upper surface 11 of the attachment member 10 is inclined with respect to the horizontal direction, the extension direction of the extension 33 may be inclined with respect to the vertical direction.

[0039] The cross-sectional shape of the extension portion 33 perpendicular to the extension direction is not particularly limited, and examples thereof include a circle, a square, a polygon, etc. The extension portion 33 may have a substantially uniform diameter in the extension direction, or may have a taper that narrows toward the tip. The extension portion 33 may be, for example, a pin. The outer periphery and tip of the extension portion 33 may be rounded.

[0040] In the illustrated example, the extending portions 33 are arranged at two locations around the power distribution portion 30. A through hole 16 is provided in the recess 13 of the attachment member 10. The shape of the through hole 16 is not particularly limited, but it is preferable that the shape be similar to the cross-sectional shape perpendicular to the extension direction of the extending portion 33. For example, if the extending portion 33 is cylindrical, the through hole 16 may be circular.

[0041] The extension 33 formed on the protrusion 32 of the power distribution unit 30 is disposed in the through hole 16 formed in the recess 13 of the mounting base 10. This makes it easy to position the power distribution unit 30 relative to the mounting base 10. Furthermore, when the position of the power distribution unit 30 is fixed by the lower surface 22 of the photovoltaic power generation device 20, it also becomes easy to position the photovoltaic power generation device 20 relative to the mounting base 10.

[0042] The extending portion 33 of the power distribution unit 30 may be molded integrally with the protruding portion 32. The extending portion 33 may be molded separately from the protruding portion 32 and fixed to the protruding portion 32. The extending portion 33 may remain until after the power distribution unit 30 is attached. The extending portion 33 may be removed from the protruding portion 32 after the power distribution unit 30 is positioned in the recess 13 of the attachment member 10.

[0043] The solar power generation device 20 is preferably fixed to a mounting base 10. Although not particularly shown, a fixing member may be disposed between the upper surface 11 of the mounting base 10 and the lower surface 22 of the solar power generation device 20, for example. The fixing member is not particularly limited, but examples thereof include double-sided adhesive tape, adhesive tape, magnets, screws, etc. The mounting base 10 to which the solar power generation device 20 is attached can be used as a part of a moving object.

[0044] It is preferable that the attachment member 10 is fixed to a moving body such as a vehicle. For example, as shown in Figures 8 and 12, fixing members 40, 41, 42, 43, 44, 45, and 46 such as clips may be arranged on the underside 15 of the attachment member 10, and the attachment member 10 may be fixed to the frame of the vehicle body or the like (not shown).

[0045] While the present invention has been described above based on preferred embodiments, the present invention is not limited to the above-described embodiments and various modifications are possible without departing from the spirit of the present invention. Modifications include addition, substitution, omission, and other changes to components in each embodiment. [Explanation of symbols]

[0046] 10...attachment receiving member, 11...upper surface of attachment receiving member, 12...attachment portion, 13...recess, 13a...bottom of recess, 14...opening, 15...lower surface of attachment receiving member, 16...through hole, 20...solar power generation device, 21...upper surface of solar power generation device, 22...lower surface of solar power generation device, 23...side wall, 30...power distribution portion, 31...main body portion, 32...protrusion, 32a...lower surface of protrusion, 32b...upper surface of protrusion, 33...extension portion, 34...upper surface of power distribution portion, 40, 41, 42, 43, 44, 45, 46...fixing members.

Claims

1. A structure for mounting a solar power generation device to a mounting member having a curved surface, a mounting member to be installed on the moving body; A solar power generation device; a power distribution unit; the power distribution unit has a protruding portion that protrudes in a substantially horizontal direction, the mounting member has a recess, and a height difference between an upper surface of the mounting member and a bottom of the recess is large enough to accommodate a protrusion of the power distribution unit; A mounting structure for a solar power generation device, wherein the bottom of the recess and the lower surface of the protrusion are in contact with each other.

2. The mounting structure for a solar power generation device according to claim 1 , wherein an upper surface of the protrusion is in contact with a lower surface of the solar power generation device.

3. The mounting structure for a photovoltaic power generation device according to claim 1 or 2, wherein an upper surface of the mounting member and a lower surface of the photovoltaic power generation device are in contact with each other.

4. the protrusion has an extension extending downward, The recess has a through hole, The mounting structure for a solar power generation device according to any one of claims 1 to 3, wherein the extension portion is disposed inside the through hole.

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