Solar power generation system, and car port with solar cell

Abstract

To improve fire protection performance with a simple configuration.SOLUTION: A solar power generation system 10 includes a plurality of solar cell modules 14, a first support member 15, and a cover member 16. The solar cell module 14 has a rectangular plate shape. The solar cell modules 14 are located side by side along a first direction and a second direction. The first support member 15 extends in the first direction. The first support member 15 supports the solar cell module 14 while covering an outer edge and a gap of the solar cell module 14. The cover member 16 extends from the first support member 15 along the second direction. The cover member 16 covers the outer edge and the gap of the solar cell module 14 from a back side of a light-receiving surface lrs.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a solar power generation system and a carport equipped with solar cells. [Background technology]

[0002] It has been proposed to install solar cells on the rooftops of a variety of buildings. The installation of solar cells on carports as buildings is also being considered. For example, carports with solar cells are required to have a certain level of fire resistance when installed in fire prevention areas or semi-fire prevention areas. For example, a configuration in which solar cell modules are installed on a roof with a metal folded-plate structure may be able to meet the required fire resistance (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-083076 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present disclosure is to provide a solar power generation system and a carport with solar cells that have a simple structure and improved fire resistance. [Means for solving the problem]

[0005] The solar power generation system according to the first aspect is a plurality of solar cell modules, each of which has a rectangular plate shape and is arranged side by side along a first direction and a second direction perpendicular to the first direction; a first support member that extends in the first direction and supports at least a portion of the plurality of solar cell modules while covering opposing outer edges of two of the solar cell modules adjacent to each other in the second direction and a gap between the outer edges from behind the light-receiving surfaces of the solar cell modules; and a metal cover member extending from the first support member along the second direction and covering the opposing outer edges of two adjacent solar cell modules in the first direction and the gap between the outer edges from the back side of the light receiving surface.

[0006] The second aspect of solar carports is a first solar power generation system and a second solar power generation system, each of which has a rectangular plate shape and is arranged side by side along a first direction and a second direction perpendicular to the first direction; a first support member extending in the first direction and supporting at least some of the solar cell modules while covering, from behind the light-receiving surfaces of the solar cell modules, the opposing outer edges of two of the solar cell modules adjacent to each other in the second direction and a gap between the outer edges; and a metal cover member extending from the first support member along the second direction and covering, from behind the light-receiving surfaces of the two of the solar cell modules adjacent to each other in the first direction and a gap between the outer edges, a distance between the first solar power generation system and the second solar power generation system that is less than twice the length of the solar cell module in the second direction; a power generation unit of the first solar power generation system is inclined so that the distance between the power generation unit and a horizontal plane decreases as the power generation unit is farther away from the second solar power generation system; The power generation unit of the second solar power generation system is inclined so that the distance from the horizontal plane becomes smaller as the power generation unit is farther away from the first solar power generation system.

[0007] The solar power generation system from the third perspective is a plurality of solar cell modules, each of which has a rectangular plate shape and is arranged side by side along a first direction and a second direction perpendicular to the first direction; a first support member that extends in the first direction and supports at least a portion of the plurality of solar cell modules while covering opposing outer edges of two of the solar cell modules adjacent to each other in the second direction and a gap between the outer edges from behind the light-receiving surfaces of the solar cell modules; a metal cover member that extends from the first support member along the second direction and covers, from a back side of the light receiving surface, outer edges of two of the solar cell modules that are adjacent to each other in the first direction and a gap between the outer edges, the outer edges facing each other; the solar cell module has a rectangular panel portion and a frame portion surrounding an outer edge of the panel portion, the frame portion has a side surface portion surrounding a side surface of the panel portion, and a bottom surface portion protruding in a flange-like shape from the side surface portion toward the panel portion on the back side of the light receiving surface, a width of the cover member in the first direction is greater than a sum of a width in the first direction of each of the bottom surface portions adjacent to each other in the two solar cell modules that define the gap covered by the cover member and a width in the first direction of the gap; the cover member contacts the bottom surface portion, the bottom surface portion has a gap between it and the surface of the panel portion, the cover member has a flat plate-like first portion parallel to the light receiving surface and a plate-like second portion erected on the panel portion side at at least one end of the first portion on both sides in the first direction, the second portion terminates beyond the bottom surface portion with a gap between it and the panel portion; The first portion is fixed at an end in the second direction by being sandwiched between the frame portion and the first support member. [Effects of the Invention]

[0008] According to the present disclosure, fire prevention performance is improved with a simple structure. [Brief explanation of the drawings]

[0009] [Figure 1]1 is a view of a solar-cell carport including a solar power generation system according to one embodiment, viewed from a first direction, installed on an installation surface. [Figure 2] 2 is a bottom view of the solar power generation system of FIG. 1, with second support members and pillar members removed, as viewed from the back side of the light-receiving surface. [Figure 3] 2 is a diagram of the solar power generation systems, which are the first and second solar power generation systems of FIG. 1, viewed from a first direction. FIG. [Figure 4] 4 is a view of the power generating unit of FIG. 3 as seen from the normal direction of the light receiving surface. [Figure 5] FIG. 5 is an external perspective view of the solar cell module of FIG. 4. [Figure 6] FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 5. [Figure 7] FIG. 6 is a view of the solar cell module of FIG. 5 as seen from behind the light-receiving surface. [Figure 8] 3 is a partial cross-sectional view of the vicinity of a first support member, obtained by cutting the solar power generation system of FIG. 2 along a plane perpendicular to a first direction. [Figure 9] 3 is a partial cross-sectional view of the vicinity of a cover member of the solar power generation system of FIG. 2 taken along a plane perpendicular to a second direction. [Figure 10] FIG. 3 is a perspective view of the solar power generation system of FIG. 2 with a portion of the panel unit removed. [Figure 11] FIG. 2 is a view of the solar cell-equipped carport of FIG. 1 as seen from vertically above. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following drawings, the same components are denoted by the same reference numerals.

[0011] As shown in Fig. 1, a solar power generation system 10 according to an embodiment of the present disclosure may constitute a solar-cell-equipped carport 13 as a first solar power generation system 11 and a second solar power generation system 12. The first solar power generation system 11 and the second solar power generation system 12 each have the same structure. Features common to both the first solar power generation system 11 and the second solar power generation system 12 will be described below as features of the solar power generation system 10.

[0012] 2, the solar power generation system 10 may include a plurality of solar cell modules 14, at least one first support member 15, and at least one cover member 16. As shown in FIG. 3, the solar power generation system 10 may further include at least one second support member 17 and at least one column member 18.

[0013] The solar cell module 14 has a rectangular plate shape. One of the main surfaces of the solar cell module 14 is a light-receiving surface. The main surface is the surface that has the largest area among the planes that define the plate. As shown in FIG. 4, the main surface may be defined by a first side s1 and a second side s2 that are perpendicular to each other. The second side s2 may be longer than the first side s1.

[0014] As shown in FIG. 3, multiple solar cell modules 14 may constitute a power generation unit 19. In the power generation unit 19, the multiple solar cell modules 14 are aligned along a first direction and a second direction. The second direction is perpendicular to the first direction. In the power generation unit 19, the first side s1 of each solar cell module 14 may be parallel to the first direction. Also, in the power generation unit 19, the second side s2 of each solar cell module 14 may be parallel to the second direction. In the power generation unit 19, the multiple solar cell modules 14 may be arranged so that their light-receiving surfaces form the same plane.

[0015] 5, the solar cell module 14 may include a panel portion 20 and a frame portion 21. The panel portion 20 may be a rectangular plate. The frame portion 21 may surround the outer edge of the light receiving surface lrs of the panel portion 20.

[0016] 6, the frame portion 21 may include a side portion 22 and a bottom portion 23. The frame portion 21 may further include a clamping portion 24.

[0017] The side surface portion 22 may surround the side surface of the panel portion 20. The length of the side surface portion 22 in the normal direction to the light receiving surface lrs may be greater than the thickness of the panel portion 20. The side surface portion 22 may extend longer toward the back side of the light receiving surface lrs than toward the light receiving surface lrs side of the panel portion 20.

[0018] The bottom surface portion 23 may protrude in a flange-like shape from the side surface portion 22 toward the panel portion 20 on the back side of the light receiving surface lrs. As shown in Fig. 7, the bottom surface portion 23 may be frame-shaped when viewed from the normal direction of the light receiving surface lrs. The bottom surface portion 23 may be located at the end opposite the end of the side surface portion 22 that is closer to the light receiving surface lrs. The bottom surface portion 23 along the first side s1 may have notches nt formed at both ends in the longitudinal direction, in other words, at both ends in the first direction.

[0019] 6, the clamping unit 24 may clamp the vicinity of the outer edge of the light-receiving surface lrs of the panel unit 20 in the thickness direction of the panel unit 20. The clamping unit 24 may have a gap between it and the bottom surface unit 23 in the normal direction of the light-receiving surface lrs. Therefore, a gap may be provided between the surface of the panel unit 20 clamped by the clamping unit 24, more specifically, the back surface of the light-receiving surface lrs, and the bottom surface unit 23.

[0020] The frame portion 21 may be formed with a tubular portion 25 along the outer edge of the panel portion 20, closer to the bottom surface portion 23 than the panel portion 20. The tubular portion 25 may be formed using a portion of the side surface portion 22 and the bottom surface portion 23. Specifically, the tubular portion 25 may stand upright from the bottom surface portion 23, and may have a rectangular tube shape formed by a wall connected to the clamping portion 24 on the bottom surface portion 23 side, the clamping portion 24, a portion of the bottom surface portion 23, and a portion of the side surface portion 22. The bottom surface portion 23 forming the tubular portion 25 may have a first hole h1.

[0021] As shown in Fig. 2, the first support member 15 extends in a first direction. As shown in Fig. 8, the first support member 15 may be positioned so as to overlap the bottom surface portion 23 along the first side s1 of the solar cell module 14. Furthermore, the first support member 15 may be positioned so as to overlap the boundary between two solar cell modules 14 adjacent to each other in the second direction.

[0022] The first support member 15 supports at least a portion of the solar cell module 14. Specifically, the first support member 15 may support the solar cell module 14 at a bottom surface portion 23 along the first side s1 of the solar cell module 14. Also, specifically, the first support member 15 may support two solar cell modules 14 adjacent to each other in the second direction.

[0023] The first support member 15 may fix the solar cell module 14. Specifically, the first support member 15 may fix the solar cell module 14 by fastening to the frame portion 21 of the solar cell module 14 using fastening members such as bolts and nuts.

[0024] The first support member 15 covers the opposing outer edges of two adjacent solar cell modules 14 in the second direction and the gap between the outer edges from the back side of the light receiving surface lrs of the solar cell modules 14. The width W1 in the second direction of the first support member 15 may be greater than the sum of the width W2 in the second direction of the adjacent bottom surface portions 23 of the two solar cell modules 14 that define the gap covered by the first support member 15 and the width W3 in the second direction of the gap.

[0025] As shown in FIG. 3 , the first support member 15 may be provided across a plurality of second support members 17 arranged along a first direction. The first support member 15 may be fixed to the second support members 17 by any method. For example, the first support member 15 may be fixed by fastening using bolts and nuts, by welding, or by joints. The first support member 15 may be made of metal. The first support member 15 may be a C-shaped steel beam having a C-shaped cross section perpendicular to the longitudinal direction. The first support member 15 may be a series of steel members, and may be formed by joining a plurality of steel members by any method such as welding or joints.

[0026] 2, the cover member 16 extends along the second direction. The cover member 16 extends from a first support member 15 to a first support member 15 adjacent to the first support member 15. As shown in FIG. 9, the cover member 16 may be positioned so as to overlap the bottom surface portion 23 along the second side s2 of the solar cell module 14.

[0027] The cover member 16 covers the opposing outer edges of two adjacent solar cell modules 14 in the first direction and the gap between the outer edges from the back side of the light receiving surface lrs of the solar cell modules 14. The width W4 of the cover member 16 in the first direction may be longer than the sum of the width W5 in the first direction of the adjacent bottom surface portions 23 of the two solar cell modules 14 that define the gap covered by the cover member 16 and the width W6 of the gap in the first direction.

[0028] 2, the cover member 16 may cover only a portion of the back side of the light-receiving surface lrs of the solar cell module 14, rather than the entirety of the back side. Therefore, a portion of the back side of the light-receiving surface lrs may be exposed from the cover member 16. As shown in Fig. 10, the cover member 16 may terminate inside a notch nt of the bottom surface portion 23 extending along the first direction, when viewed from the light-receiving surface lrs in the second direction.

[0029] The cover member 16 may have a line-symmetric shape in a cross section perpendicular to the longitudinal direction. The cover member 16 having a line-symmetric shape can be used regardless of whether it is on the left or right, improving workability.

[0030] 9, the cover member 16 may have a first portion 26 and a second portion 27. The first portion 26 may be flat. The second portion 27 may be plate-shaped, specifically, flat.

[0031] The first portion 26 may cover the bottom surface portion 23 so as to be parallel to the light receiving surface lrs. The cover member 16 has a second hole h2 that at least partially overlaps with the first hole h1 when viewed from the normal direction of the light receiving surface lrs. Specifically, the second hole h2 may be formed in the first portion 26 at approximately the same position as the first hole h1 when viewed from the normal direction.

[0032] The second portion 27 may be erected toward the panel unit 20 at at least one end of both sides of the first portion 26 in the first direction. The second portion 27 may terminate in a direction normal to the light-receiving surface lrs, beyond the bottom surface portion 23 in a direction approaching the light-receiving surface lrs, so as to have a gap between it and the panel unit 20.

[0033] The cover member 16 may be in contact with the bottom surface portion 23. Specifically, the cover member 16 may be in surface contact with the bottom surface portion 23 at the first portion 26. As shown in FIG. 10 , both ends of the cover member 16 in the longitudinal direction, i.e., in the second direction, may be in surface contact with the vertically upper surface of the first support member 15 and the bottom surface portion 23 of the frame portion 21, respectively. Furthermore, the first portion 26 may be fixed at its end in the second direction by being sandwiched between the frame portion 21 and the first support member 15. In this fixing structure, as shown in FIG. 8 , when the bottom surface portion 23 is fixed to the first support member 15 by the fastening members, an axial force of the fastening members is applied to the first portion 26 of the cover member 16. The application of the axial force generates a high static friction force between the cover member 16 and the first support member 15. Therefore, even when an earthquake load or the like is applied, displacement of the cover member 16 from the first support member 15 can be reduced. It is more preferable that the cover member 16 is not fixed to the frame portion 21 and the first support member 15 using fastening members such as bolts and nuts.

[0034] The cover member 16 may be made of metal. Specifically, the cover member 16 may be made of a metal containing as its main component a heavy metal with a higher melting point than the frame portion 21. More specifically, the cover member 16 may be made of iron or an iron alloy such as stainless steel, which has a melting point exceeding 1000°C.

[0035] 3, the second support member 17 may support the first support member 15. The second support member 17 may be positioned such that its longitudinal direction is perpendicular to the longitudinal direction of the first support member 15. Thus, the longitudinal direction of the second support member 17 may be parallel to the second direction.

[0036] The second support member 17 may be a columnar member having a longitudinal direction. The second support member 17 may be fixed to the column member 18 by any method. For example, the second support member 17 may be fixed by fastening with bolts and nuts, by welding, or by a joint. The second support member 17 may be made of metal. The second support member 17 may be an H-shaped steel beam having an H-shaped cross section perpendicular to the longitudinal direction, or a C-shaped steel beam having a C-shaped cross section perpendicular to the longitudinal direction. The second support member 17 may be a series of steel members, and may be formed by joining multiple steel members by any method such as welding or a joint.

[0037] The column members 18 may be erected on an installation surface is. The installation surface is may be the ground or the like where the solar-cell carport 13 is to be installed. The installation surface is may be a plane parallel to a horizontal plane, a plane inclined relative to the installation surface is, or a curved surface. As shown in FIG. 1 , multiple column members 18 may be erected on the installation surface is so as to be aligned along a direction perpendicular to both the first direction and the vertical direction. Multiple column members 18 may be erected on the installation surface is so as to be aligned along the first direction. The column members 18 may be erected by any method. For example, the column members 18 may be erected by pouring or embedding them into the ground, fixing them to a mounting frame embedded in the installation surface is, or fixing them to a strip foundation or mat foundation. The column members 18 are, for example, rod-shaped members having a longitudinal direction. The column members 18 may be a series of steel members, or may be formed by joining multiple steel members by any method, such as welding or joints. The longitudinal direction of the column member 18 is preferably perpendicular to the horizontal plane, but may be inclined.

[0038] 11, the first solar power generation system 11 and the second solar power generation system 12 may be positioned such that a first side s1 located at an end in the second direction of the first solar power generation system 11 and a first side s1 located at an end in the second direction of the second solar power generation system 12 are substantially parallel to and face each other. Furthermore, the first solar power generation system 11 and the second solar power generation system 12 may be positioned such that the first side s1 of the first solar power generation system 11 and the first side s1 of the second solar power generation system 12 are substantially parallel to each other when viewed in the vertical direction.

[0039] 1, a distance less than twice the length of the second side s2 of the solar cell module 14 may be provided between the first solar power generation system 11 and the second solar power generation system 12. The distance may further be less than the length of the second side s2.

[0040] The power generation unit 19 of the first solar power generation system 11 may be inclined so that the distance between it and an arbitrarily determined horizontal plane decreases with increasing distance from the second solar power generation system 12. The power generation unit 19 of the second solar power generation system 12 may be inclined so that the distance between it and an arbitrarily determined horizontal plane decreases with increasing distance from the first solar power generation system 11.

[0041] The solar power generation system 10 configured as described above comprises a plurality of solar cell modules 14, each of which has a rectangular plate shape and is positioned side by side along a first direction and a second direction perpendicular to the first direction; a first support member 15 extending in the first direction and supporting at least a portion of the plurality of solar cell modules 14 while covering the opposing outer edges and the gap between the outer edges of two solar cell modules adjacent to each other in the second direction from the back side of the light receiving surface lrs of the solar cell modules 14; and a metal cover member 16 extending from the first support member 15 along the second direction and covering the opposing outer edges and the gap between the outer edges of two solar cell modules 14 adjacent to each other in the first direction from the back side of the light receiving surface lrs. With the above-described configuration, the solar power generation system 10, designed in such a manner that the light-receiving surface faces vertically upward, reduces the possibility that a flying ember falling between adjacent solar cell modules 14 will burn through to the underside of the solar cell modules 14. Therefore, the solar power generation system 10 improves fire protection for people, automobiles, and other objects located below the solar power generation system 10. Furthermore, with the above-described configuration, the solar power generation system 10 can prevent smoke generated vertically above the solar power generation system 10 from moving downward. Therefore, the solar power generation system 10 can reduce the reduction in visibility for people located vertically below the solar power generation system 10 during evacuation and suppress smoke inhalation. In this way, the solar power generation system 10 improves fire protection performance with a simple structure.

[0042] Furthermore, in the solar power generation system 10, at least a portion of the back side of the light-receiving surface lrs of the solar cell module 14 is exposed from the cover member 16. With this configuration, the solar power generation system 10 can promote air flow near the back side of the light-receiving surface lrs of the panel unit 20. With this configuration, the solar power generation system 10 can cool the panel unit 20 by convective heat transfer. Therefore, even if a spark falls on the light-receiving surface lrs of the panel unit 20, the solar power generation system 10 cools the panel unit 20, reducing the possibility that the sealing material of the panel unit will reach an ignition temperature. As a result, the solar power generation system 10 reduces the possibility of melting and cracking of the panel unit 20.

[0043] Furthermore, in the solar power generation system 10, the solar cell module 14 has a rectangular panel portion 20 and a frame portion 21 surrounding the outer edge of the panel portion 20, the frame portion 21 having side portions 22 surrounding the side surfaces of the panel portion 20 and a bottom portion 23 that protrudes like a flange from the side portion 22 toward the panel portion 20 on the back side of the light-receiving surface lrs, and the width of the cover member 16 in the first direction is longer than the sum of the widths in the first direction of the respective bottom portions 23 adjacent to each other in the two solar cell modules 14 that define the gap covered by the cover member 16 and the width of the gap in the first direction. With this configuration, the solar power generation system 10 can use the cover member 16 to suppress the progression of high-temperature embers that pass between adjacent frame portions 21.

[0044] Furthermore, in the solar power generation system 10, the cover member 16 is in contact with the bottom surface portion 23. With this configuration, the solar power generation system 10 prevents air from being supplied to the gap covered by the cover member 16 from vertically below the solar power generation system 10. Therefore, the solar power generation system 10 suppresses the temperature rise of the sparks that fall into the gap covered by the cover member 16, and can reduce heating of the panel unit 20 due to the sparks.

[0045] Furthermore, in the solar power generation system 10, the bottom surface 23 has a gap between it and the surface of the panel unit 20, and the cover member 16 has a flat first portion 26 parallel to the light-receiving surface lrs and a plate-like second portion 27 erected toward the panel unit 20 at at least one end of the first portion 26 on both sides in the first direction, the second portion 27 terminating beyond the bottom surface 23 and leaving a gap between it and the panel unit 20. With this configuration, the solar power generation system 10 can reduce the possibility of fire falling below the solar power generation system 10 even if fire penetrates near the outer edge of the panel unit 20, where fire is more likely to penetrate vertically downward than near the center of the light-receiving surface lrs—in other words, near the frame unit 21. Furthermore, with the above-described configuration, the solar power generation system 10 prevents the space defined by the cover member 16 and the panel unit 20 from being sealed, thereby preventing air from stagnating in the space. Therefore, the solar power generation system 10 can prevent radiant heat from stagnating in the space and reduce temperature rise.

[0046] Furthermore, in the solar power generation system 10, the width of the first support member 15 in the second direction is longer than the sum of the widths in the second direction of the bottom surfaces 23 of the two solar cell modules 14 adjacent to each other that define the gap covered by the first support member 15 and the width of the gap in the second direction, and a notch nt is formed at both ends in the first direction of the portion of the bottom surface 23 that extends along the first support member 15, and the cover member 16 terminates inside the notch nt when viewed from the light receiving surface lrs in the second direction. With this configuration, in the solar power generation system 10, even if a high-temperature spark penetrates the solar cell module 14 near a corner of the solar cell module 14, the cover member 16 and the first support member 15 can prevent the spark from spreading.

[0047] Furthermore, in the solar power generation system 10, the first portion 26 is fixed at the end in the second direction by being sandwiched between the frame portion 21 and the first support member 15. With this configuration, the solar power generation system 10 prevents the cover member 16 from falling off the first support member 15 when the cover member 16 is displaced obliquely relative to the second side s2 of the frame portion 21 due to an earthquake or the like. Therefore, the solar power generation system 10 can have a simplified structure without using fastening members such as bolts and nuts.

[0048] Furthermore, in the solar power generation system 10, the cover member 16 is made of a metal primarily composed of a heavy metal that has a higher melting point than the frame portion 21. Generally, the frame portion 21 of the solar cell module 14 is made of a light metal such as an aluminum alloy, and its melting point is 570°C to 650°C. On the other hand, the temperature that occurs during a fire is 500°C to 1000°C. Therefore, there is a risk that the frame portion 21 made of an aluminum alloy will be damaged or melted during a fire. In response to such an event, the solar power generation system 10 having the above-described configuration can reduce the possibility of a spark falling below the solar cell module 14 by using the cover member 16, even if a spark that could perforate the frame portion 21 falls.

[0049] Furthermore, in the solar power generation system 10, a cylindrical portion 25 along the outer edge of the panel portion 20 is formed in the frame portion 21 using a portion of the side portion 22 and a portion of the bottom portion 23, and is located closer to the bottom portion 23 than the panel portion 20. The bottom portion 23 forming the cylindrical portion 25 has a first hole h1, and the cover member 16 has a second hole that at least partially overlaps with the first hole when viewed from the normal direction of the light-receiving surface lrs. With this configuration, the solar power generation system 10 can drain water that enters the cylindrical portion 25 due to capillary action or the like. Therefore, the solar power generation system 10 can reduce the possibility of deformation of the frame portion 21 caused by expansion due to freezing of water in the cylindrical portion 25.

[0050] In the solar-cell carport 13 equipped with the first solar power generation system 11 and the second solar power generation system 12, which are solar power generation systems 10 configured as described above, the first solar power generation system 11 and the second solar power generation system 12 are separated by a distance less than twice the length of the solar cell module 14 in the second direction. The power generation unit 19 of the first solar power generation system 11 is inclined so that its distance from the horizontal plane decreases with increasing distance from the second solar power generation system 12, and the power generation unit 19 of the second solar power generation system 12 is inclined so that its distance from the horizontal plane decreases with increasing distance from the first solar power generation system 11. For example, in a solar power generation system in which two power generation units are arranged to form a mound, air heated vertically below the solar power generation system accumulates along the lower surface of the solar power generation system near the peak of the mound. The accumulation of heated air increases the temperature of the solar cell module near the mound, reducing power generation efficiency. Furthermore, the solar cell module is exposed to high temperatures for a long period of time, which may accelerate deterioration of the solar cell module. To cope with such an event, the carport with solar cells 13 having the above-described configuration exhausts the air heated on the rear surface of the light-receiving surface lrs of the power generation unit 19 of each of the first and second solar power generation systems 11 and 12 from the gap between the first and second solar power generation systems 11 and 12 by the chimney effect. By exhausting the heated air, the carport with solar cells 13 can draw relatively cool air around the solar power generation system 10 to the rear surface of the power generation unit 19. Therefore, the carport with solar cells 13 cools the solar cell module 14, thereby reducing a decrease in power generation efficiency. Furthermore, the carport with solar cells 13 having the above-described configuration cools the solar cell module 14, thereby reducing a rise in the temperature of the solar cell module 14 when heated by a fire. Therefore, the carport with solar cells 13 reduces the possibility that the sealing material in the panel unit will reach its melting temperature, thereby preventing the sealing material from leaking out from between the glass and rear surface protective material of the panel unit. As a result, the solar cell-equipped carport 13 can prevent fire sources from burning through the solar cell modules 14, thereby improving fire resistance.

[0051] In one embodiment, (1) a solar power generation system includes: a plurality of solar cell modules, each of which has a rectangular plate shape and is arranged side by side along a first direction and a second direction perpendicular to the first direction; a first support member that extends in the first direction and supports at least a portion of the plurality of solar cell modules while covering opposing outer edges of two of the solar cell modules adjacent to each other in the second direction and a gap between the outer edges from behind the light-receiving surfaces of the solar cell modules; and a metal cover member extending from the first support member along the second direction and covering the opposing outer edges of two adjacent solar cell modules in the first direction and the gap between the outer edges from the back side of the light receiving surface.

[0052] (2) In the solar power generation system described above in (1), At least a portion of the rear side of the light-receiving surface of the solar cell module is exposed from the cover member.

[0053] (3) In the solar power generation system described in (1) or (2) above, the solar cell module has a rectangular panel portion and a frame portion surrounding an outer edge of the panel portion, the frame portion has a side surface portion surrounding a side surface of the panel portion, and a bottom surface portion protruding in a flange-like shape from the side surface portion toward the panel portion on the back side of the light receiving surface, The width of the cover member in the first direction is greater than the sum of the width in the first direction of each of the adjacent bottom surface portions of the two solar cell modules that define the gap covered by the cover member and the width in the first direction of the gap.

[0054] (4) In the solar power generation system described in (3) above, The cover member is in contact with the bottom surface portion.

[0055] (5) In the solar power generation system described in (3) or (4) above, the bottom surface portion has a gap between it and the surface of the panel portion, the cover member has a flat plate-like first portion parallel to the light receiving surface and a plate-like second portion erected on the panel portion side at at least one end of both sides of the first portion in the first direction, The second portion terminates beyond the bottom surface portion with a gap between it and the panel portion.

[0056] (6) In the solar power generation system described above in (5), a width of the first support member in the second direction is greater than a sum of a width in the second direction of each of the bottom surface portions adjacent to each other in the two solar cell modules that define the gap covered by the first support member and a width of the gap in the second direction; a notch is formed at both ends in the first direction of a portion of the bottom surface portion that extends along the first support member, The cover member terminates inside the notch when viewed from the light receiving surface in the second direction.

[0057] (7) In the solar power generation system described in (5) or (6) above, The first portion is fixed at an end in the second direction by being sandwiched between the frame portion and the first support member.

[0058] (8) In any of the solar power generation systems (3) to (7) above, The cover member is made of a metal containing as its main component a heavy metal having a higher melting point than the frame portion.

[0059] (9) In any of the solar power generation systems (3) to (8) above, a cylindrical portion along an outer edge of the panel portion is formed in the frame portion by using a part of the side surface portion and a part of the bottom surface portion, the cylindrical portion being closer to the bottom surface portion than the panel portion; the bottom surface portion forming the cylindrical portion has a first hole portion, The cover member has a second hole that at least partially overlaps with the first hole when viewed in the normal direction of the light receiving surface.

[0060] In one embodiment, the solar cell-equipped carport (10) includes: A solar power generation system including a first solar power generation system and a second solar power generation system, each of which is a solar power generation system according to any one of (1) to (9), a distance between the first solar power generation system and the second solar power generation system that is less than twice the length of the solar cell module in the second direction; a power generation unit of the first solar power generation system is inclined so that the distance between the power generation unit and a horizontal plane decreases as the power generation unit is farther away from the second solar power generation system; The power generation unit of the second solar power generation system is inclined so that the distance from the horizontal plane decreases as the power generation unit is farther away from the first solar power generation system.

[0061] In one embodiment, (11) the solar power generation system includes: a plurality of solar cell modules, each of which has a rectangular plate shape and is arranged side by side along a first direction and a second direction perpendicular to the first direction; a first support member that extends in the first direction and supports at least a portion of the plurality of solar cell modules while covering opposing outer edges of two of the solar cell modules adjacent to each other in the second direction and a gap between the outer edges from behind the light-receiving surfaces of the solar cell modules; a metal cover member that extends from the first support member along the second direction and covers, from a back side of the light receiving surface, outer edges of two of the solar cell modules that are adjacent to each other in the first direction and a gap between the outer edges, the outer edges facing each other; the solar cell module has a rectangular panel portion and a frame portion surrounding an outer edge of the panel portion, the frame portion has a side surface portion surrounding a side surface of the panel portion, and a bottom surface portion protruding in a flange-like shape from the side surface portion toward the panel portion on the back side of the light receiving surface, a width of the cover member in the first direction is greater than a sum of a width in the first direction of each of the bottom surface portions adjacent to each other in the two solar cell modules that define the gap covered by the cover member and a width in the first direction of the gap; the cover member contacts the bottom surface portion, the bottom surface portion has a gap between it and the surface of the panel portion, the cover member has a flat plate-like first portion parallel to the light receiving surface and a plate-like second portion erected on the panel portion side at at least one end of the first portion on both sides in the first direction, the second portion terminates beyond the bottom surface portion with a gap between it and the panel portion; The first portion is fixed at an end in the second direction by being sandwiched between the frame portion and the first support member.

[0062] (12) In the solar power generation system described in (11) above, a width of the first support member in the second direction is greater than a sum of a width in the second direction of each of the bottom surface portions adjacent to each other in the two solar cell modules that define the gap covered by the first support member and a width of the gap in the second direction; a notch is formed at both ends in the first direction of a portion of the bottom surface portion that extends along the first support member, The cover member terminates inside the notch when viewed from the light receiving surface in the second direction.

[0063] The drawings illustrating the embodiments of the present disclosure are schematic, and the dimensional ratios and the like in the drawings do not necessarily correspond to the actual ones.

[0064] Although the embodiments of the present disclosure have been described based on the drawings and examples, it should be noted that those skilled in the art can make various modifications or alterations based on the present disclosure. Therefore, it should be noted that these modifications or alterations are included in the scope of the present disclosure. For example, the functions included in each component can be rearranged so as not to be logically inconsistent, and multiple components can be combined or divided into one.

[0065] Furthermore, embodiments of the present disclosure are not limited to the specific configurations of any of the above-described embodiments, but rather extend to any novel feature or combination thereof described herein, or any novel method or process step or combination thereof described herein.

[0066] In this disclosure, descriptions such as "first" and "second" are identifiers for distinguishing the configuration. In this disclosure, the configurations distinguished by descriptions such as "first" and "second" can have their numbers exchanged. For example, a first solar power generation system can exchange the identifiers "first" and "second" with a second solar power generation system. The exchange of identifiers is performed simultaneously. The configurations remain distinguished even after the identifier exchange. Identifiers may be deleted. A configuration from which an identifier has been deleted is distinguished by a symbol. The descriptions of identifiers such as "first" and "second" in this disclosure should not be used solely to interpret the order of the configurations or to justify the existence of an identifier with a smaller number. [Explanation of symbols]

[0067] 10. Solar power generation system 11 First Solar Power Generation System 12 Second solar power generation system 13 Solar-powered carport 14 Solar cell modules 15 First support member 16 Cover member 17 Second support member 18 Column members 19 Power Generation Department 20 Panel section 21 Frame section 22 Side part 23 Bottom part 24 Clamping part 25 Cylinder 26 First Part 27 Second Part h1 First hole lrs light receiving surface nt notch s1 first side s2 second side is installation surface

Claims

1. a plurality of solar cell modules, each of which has a rectangular plate shape and is arranged side by side along a first direction and a second direction perpendicular to the first direction; a first support member that extends in the first direction and supports at least a portion of the plurality of solar cell modules while covering opposing outer edges of two of the solar cell modules adjacent to each other in the second direction and a gap between the outer edges from behind the light-receiving surfaces of the solar cell modules; a metal cover member that extends from the first support member along the second direction and covers, from the back side of the light receiving surface, the opposing outer edges of two of the solar cell modules that are adjacent to each other in the first direction and a gap between the outer edges. Solar power generation system.

2. The solar power generation system according to claim 1, At least a part of the back side of the light receiving surface of the solar cell module is exposed from the cover member. Solar power generation system.

3. The solar power generation system according to claim 1 or 2, the solar cell module has a rectangular panel portion and a frame portion surrounding an outer edge of the panel portion, the frame portion has a side surface portion surrounding a side surface of the panel portion, and a bottom surface portion protruding in a flange-like shape from the side surface portion toward the panel portion on the back side of the light receiving surface, The width of the cover member in the first direction is greater than the sum of the widths in the first direction of the bottom surface portions adjacent to each other in the two solar cell modules that define the gap covered by the cover member and the width of the gap in the first direction. Solar power generation system

4. The solar power generation system according to claim 3, The cover member is in contact with the bottom surface portion. Solar power generation system.

5. The solar power generation system according to claim 3, the bottom surface portion has a gap between it and the surface of the panel portion, the cover member has a flat plate-like first portion parallel to the light receiving surface and a plate-like second portion erected on the panel portion side at at least one end of both sides of the first portion in the first direction, The second portion extends beyond the bottom surface portion and terminates with a gap between the second portion and the panel portion. Solar power generation system.

6. The solar power generation system according to claim 5, a width of the first support member in the second direction is greater than a sum of a width in the second direction of each of the bottom surface portions adjacent to each other in the two solar cell modules that define the gap covered by the first support member and a width of the gap in the second direction; a notch is formed at both ends in the first direction of a portion of the bottom surface portion that extends along the first support member; The cover member terminates inside the notch when viewed from the light receiving surface in the second direction. Solar power generation system.

7. The solar power generation system according to claim 5, The first portion is fixed at an end portion in a second direction by being sandwiched between the frame portion and the first support member. Solar power generation system.

8. The solar power generation system according to claim 3, The cover member is made of a metal containing a heavy metal as a main component, which has a higher melting point than the frame portion. Solar power generation system.

9. The solar power generation system according to claim 3, a cylindrical portion along an outer edge of the panel portion is formed in the frame portion by using a part of the side surface portion and a part of the bottom surface portion, the cylindrical portion being closer to the bottom surface portion than the panel portion; the bottom surface portion forming the cylindrical portion has a first hole portion, The cover member has a second hole that at least partially overlaps with the first hole when viewed from the normal direction of the light receiving surface. Solar power generation system.

10. A solar power generation system comprising a first solar power generation system and a second solar power generation system, each of which is the solar power generation system according to claim 1 or 2, a distance between the first solar power generation system and the second solar power generation system that is less than twice the length of the solar cell module in the second direction; a power generation unit of the first solar power generation system is inclined so that the distance between the power generation unit and a horizontal plane decreases as the power generation unit is farther away from the second solar power generation system; The power generation unit of the second solar power generation system is inclined so that the distance from the horizontal plane becomes smaller as the power generation unit is farther from the first solar power generation system. Solar carport.

11. a plurality of solar cell modules, each of which has a rectangular plate shape and is arranged side by side along a first direction and a second direction perpendicular to the first direction; a first support member that extends in the first direction and supports at least a portion of the plurality of solar cell modules while covering opposing outer edges of two of the solar cell modules adjacent to each other in the second direction and a gap between the outer edges from behind the light-receiving surfaces of the solar cell modules; a metal cover member that extends from the first support member along the second direction and covers, from a back side of the light receiving surface, outer edges of two of the solar cell modules that are adjacent to each other in the first direction and a gap between the outer edges, the outer edges facing each other; the solar cell module has a rectangular panel portion and a frame portion surrounding an outer edge of the panel portion, the frame portion has a side surface portion surrounding a side surface of the panel portion, and a bottom surface portion protruding in a flange-like shape from the side surface portion toward the panel portion on the back side of the light receiving surface, a width of the cover member in the first direction is greater than a sum of a width in the first direction of each of the bottom surface portions adjacent to each other in the two solar cell modules that define the gap covered by the cover member and a width in the first direction of the gap; the cover member contacts the bottom surface portion, the bottom surface portion has a gap between it and the surface of the panel portion, the cover member has a flat plate-like first portion parallel to the light receiving surface and a plate-like second portion erected on the panel portion side at at least one end of the first portion on both sides in the first direction, the second portion extends beyond the bottom surface portion and terminates with a gap between the second portion and the panel portion; The first portion is fixed at an end in the second direction by being sandwiched between the frame portion and the first support member. Solar power generation system.

12. The solar power generation system according to claim 11, a width of the first support member in the second direction is greater than a sum of a width in the second direction of each of the bottom surface portions adjacent to each other in the two solar cell modules that define the gap covered by the first support member and a width of the gap in the second direction; a notch is formed at both ends in the first direction of a portion of the bottom surface portion that extends along the first support member; The cover member terminates inside the notch when viewed from the light receiving surface in the second direction. Solar power generation system.

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