Solar cell module installation structure, house, and solar cell module

Abstract

The present invention provides: a solar cell module installation structure enabling safe installation on a wall surface of a building; a house; and a solar cell module.　A support member has a support surface extending substantially in a vertical direction. The support member also has a locking piece comprising a locking part facing the support surface with a gap therebetween and extending upward, and a connection part connecting the locking part and the support surface. The solar cell module has a frame member comprising: a holding recess for clamping a part of a body panel of the solar cell module while being in contact with a light receiving surface and a back surface of the body panel; and a mounting part provided on the back surface side, having higher stiffness than the body panel, and extending in the vertical direction with a length greater than or equal to one-half of one side of the body panel. The mounting part has a mounting-side engagement part in a lower end thereof in the vertical direction comprising a notch having a depth extending upward. The support member is configured to support the solar cell module so as to be inclinable at more than or equal to 10 degrees with respect to the support surface with the locking part inserted into the mounting-side engagement part.

Description

[Technical Field]

[0001] The present invention relates to an installation structure for a solar cell module provided on a wall surface of a building, a house, and a solar cell module. [Background technology]

[0002] With the recent promotion of renewable energy, homes are being converted into zero-energy houses (hereinafter referred to as ZEH). A typical example of renewable energy is a photovoltaic power generation system using a solar cell module. A conventional photovoltaic power generation system is, for example, one in which a solar cell module is installed on the roof of a house.

[0003] However, installing solar cell modules only on the roof of a conventional house may not provide sufficient light-receiving area, making it impossible to achieve ZEH status for the home. Therefore, in recent years, efforts have been made to secure the overall power generation capacity by installing solar cell modules not only on the roof surfaces of conventional houses but also on the walls of houses (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-275808 Summary of the Invention [Problem to be solved by the invention]

[0005] When installing a solar cell module on a residential wall, scaffolding is set up around the area where the module will be installed, and the solar cell module is moved to the vicinity of the area by crane from above or manually from below. Then, workers waiting on the scaffolding near the area often attach the solar cell module to the area. A typical solar panel uses a glass substrate as a support, weighing about 20 kg per panel, making it heavy and prone to breakage if dropped. Therefore, conventional installation methods require workers to carefully install the solar cell module on the wall of a house while supporting it on narrow scaffolding, posing safety and workability issues.

[0006] Therefore, an object of the present invention is to provide a solar cell module installation structure, a house, and a solar cell module that can be safely installed on a wall surface of a building. [Means for solving the problem]

[0007] One aspect of the present invention for solving the above-mentioned problems is a solar cell module installation structure for installing a solar cell module on a wall surface of a building using a support member, the support member having a support surface and a locking piece, the support surface extending substantially in the vertical direction, the locking piece having a locking portion facing the support surface with a gap therebetween and extending upward, and a connecting portion connecting the locking portion and the support surface, the solar cell module having a main body panel and a frame member, the frame member having a holding recess and an attachment portion, the holding recess clamping a part of the main body panel, The mounting portion is in contact with the light-receiving surface and the back surface of the main panel, the mounting portion is provided on the back side of the main panel, is more rigid than the main panel, and extends vertically a length that is at least half of one side of the main panel, the mounting portion has a mounting-side engaging portion, which is a notch that is provided at the lower vertical end of the mounting portion and has a depth toward the top, and the support member has a locking portion that is inserted into the mounting-side engaging portion to support the solar cell module so that it can be tilted at an inclination angle of 10 degrees or more relative to the support surface, which is a solar cell module installation structure.

[0008] The term "building" here refers to structures such as houses, offices, warehouses, stores, factories, schools, lodgings, and garages. The term "substantially vertical" here refers not only to a completely vertical direction (a direction at 90 degrees from the horizontal plane), but also to a direction tilted to a negligible degree from the vertical direction. Specifically, "substantially vertical direction" allows for a tilt within a range of ±5 degrees from the vertical direction.

[0009] According to this aspect, the locking portion of the support member is inserted into the mounting-side engagement portion to support the solar cell module. Therefore, the vertical load of the solar cell module can be supported by the locking piece, and during assembly, workers can temporarily place the solar cell module by supporting it on the locking piece, making it less likely to fall and allowing for safe assembly. Furthermore, according to this aspect, supporting the solar cell module on the locking piece determines the height position of the solar cell module relative to the wall surface, making it easy to position the solar cell module. According to this aspect, the mounting portion also serves to reinforce the main panel, so that the main panel is less likely to bend and be damaged even when subjected to a load from wind or the like. According to this aspect, the support member can support the solar cell module in an inclined position relative to the support surface. By adopting an inclined position, a space can be formed between the support surface and the solar cell module while the support member is supporting the solar cell module, making it easy to perform maintenance on equipment exposed on the back side of the solar cell panel, such as a terminal box.

[0010] In a preferred aspect, the inner wall of the mounting engagement portion includes an inclined surface that is inclined in a direction away from the main body panel in the depth direction of the mounting engagement portion.

[0011] According to this aspect, the solar cell module can be stably placed in a tilted position by tilting it along the inclined surface.

[0012] In a preferred aspect, the frame member includes a holding frame having the holding recess and a mounting frame having the mounting portion.

[0013] According to this aspect, since the holding recess and the mounting portion are provided on separate members, the holding frame and the mounting frame can be replaced separately, for example, during maintenance, etc. This reduces maintenance costs.

[0014] In a more preferred aspect, the holding frame has a back side cover portion, a first connecting wall portion, and a locking wall portion, the back side cover portion forms part of the holding recess and covers the back side of the main panel, the locking wall portion faces the back side cover portion at a distance in the thickness direction of the main panel on the back side of the main panel, the first connecting wall portion connects the back side cover portion to the locking wall portion, the mounting frame has a panel side wall portion and a support side wall portion facing each other at a distance, and a second connecting wall portion connecting the panel side wall portion to the support side wall portion, and the panel side wall portion is fixed in face contact with the main panel side surface of the locking wall portion.

[0015] According to this aspect, the locking wall portion of the holding frame and the supporting side wall portion of the mounting frame are fixed in surface contact, so that the mounting frame is unlikely to come off the holding frame even when subjected to a load due to wind or the like.

[0016] In a preferred aspect, the frame member has the holding recess and the mounting portion formed as a single member.

[0017] According to this aspect, the number of parts can be reduced, and workability can be improved compared to the conventional art.

[0018] In a more preferred aspect, the frame member has a first frame portion that protects the lower end surface of the main body panel and a second frame portion that protects the side end surface of the main body panel, the first frame portion and the second frame portion have an overlapping portion, the mounting side engagement portion is a cutout groove that extends across the first frame portion and the second frame portion, and the internal space of the mounting side engagement portion is continuous with the outside in the extension direction.

[0019] According to this aspect, the mounting-side engaging portion is a notched groove that is provided across the first frame portion and the second frame portion. Therefore, during assembly, the support member is temporarily placed with the locking portion inserted into the mounting-side engaging portion, and the solar cell module can be moved in that state in the extension direction of the mounting-side engaging portion. As a result, alignment in the extension direction of the mounting-side engaging portion is easy.

[0020] One aspect of the present invention is a solar cell module installation structure for installing at least two solar cell modules on a wall surface of a building using a support member, the support member having a support surface and a locking piece, the support surface extending substantially in the vertical direction, the locking piece having a locking portion that faces the support surface with a gap therebetween and extends upward, and a connecting portion that connects the locking portion to the support surface, the two solar cell modules each having a main panel and a frame member, the frame member having a holding recess and an attachment portion, the holding recess sandwiching a part of the main panel and is in contact with the light-receiving surface and back surface of the main panel, the mounting portion is provided on the back surface of the main panel, is more rigid than the main panel, and extends vertically a length that is at least half of one side of the main panel, the mounting portion has a mounting-side engaging portion, which is a notch that is provided at the lower end of the mounting portion in the vertical direction and has a depth toward the top, and the support member supports the two solar cell modules by having the locking portion inserted across the mounting-side engaging portions of the two solar cell modules.

[0021] According to this aspect, a plurality of solar cell modules can be safely installed on the wall surface of a building. According to this aspect, the locking portion of the support member is provided across the mounting-side engaging portions of the two solar cell modules, and supports the two solar cell modules simultaneously, thereby reducing the number of parts. According to this aspect, the mounting portion also serves to reinforce the main panel, so that the main panel is less likely to bend and be damaged even when subjected to a load from wind or the like.

[0022] One aspect of the present invention is a house having a wall surface and the above-described solar cell module installation structure, the installation structure being provided on the wall surface.

[0023] According to this aspect, the solar cell module can be safely installed on the wall surface.

[0024] One aspect of the present invention is a solar cell module that is attached to a support member having a support surface and a locking piece and is installed on a wall surface of a building, the support member having the support surface that extends substantially vertically, the locking piece having a locking portion that faces the support surface with a gap therebetween and extends upward, and a connecting portion that connects the locking portion to the support surface, the support member having a main panel and a frame member, the frame member having a holding recess and an attachment portion, the holding recess sandwiching a part of the main panel and contacting the light receiving surface and back surface of the main panel, and the attachment portion being provided on the back surface side of the main panel. a solar cell module having a mounting portion that is more rigid than the main panel and extends vertically a length that is at least half of one side of the main panel, the mounting portion having a mounting-side engaging portion that is a notch that is provided at the lower vertical end of the mounting portion and has a depth that increases upward, the mounting-side engaging portion including, in the depth direction of the mounting-side engaging portion, an inclined surface that is inclined away from the main panel and a parallel surface that is parallel to the support surface, the parallel surface facing the inclined surface, and when the solar cell module is attached to the support member, the locking portion is inserted into the mounting-side engaging portion to engage with it.

[0025] According to this aspect, since the mounting side engaging portion is provided as a notch that can engage with the locking portion, the mounting side engaging portion can be safely installed on the wall surface of a building. According to this aspect, the mounting portion also serves to reinforce the main panel, so that the main panel is less likely to bend and be damaged even when subjected to a load from wind or the like. [Effects of the Invention]

[0026] The solar cell module installation structure, house, and solar cell module of the present invention can be safely installed on a wall surface. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a perspective view schematically showing an installation structure for a solar cell module according to a first embodiment of the present invention. [Figure 2] FIG. 2 is an exploded perspective view of the installation structure of FIG. 1. [Figure 3] FIG. 3 is an exploded perspective view of the solar cell module of FIG. 2. [Figure 4] 4 is an explanatory diagram of the solar cell panel of FIG. 3, where (a) is a front view of the solar cell panel and (b) is a rear view of the solar cell panel. [Figure 5] FIG. 4 is an exploded perspective view of the frame member of FIG. 3. [Figure 6] 3 is a vertical cross-sectional perspective view of the solar cell module of FIG. 2, viewed from above the front. [Figure 7] FIG. 3 is a cross-sectional perspective view of the solar cell module of FIG. 2, viewed from below the front. [Figure 8] FIG. 3 is a side view of the solar cell module of FIG. 2. [Figure 9] FIG. 3 is a perspective view of the solar cell module of FIG. 2, viewed from above on the back surface. [Figure 10] FIG. 3 is a perspective view of the support member of FIG. 2. [Figure 11] FIG. 2 is an explanatory diagram of the construction procedure for the solar cell module installation structure of FIG. 1, and is a perspective view when the support member is attached to the wall surface. [Figure 12] FIG. 2 is an explanatory diagram of the construction procedure for the solar cell module installation structure of FIG. 1, and is a perspective view when aligning the solar cell modules in the lateral direction. [Figure 13] 2A and 2B are explanatory diagrams of the construction procedure for the solar cell module installation structure of FIG. 1, where (a) is a side view showing the solar cell module tilted relative to the wall surface, and (b) is a side view showing the solar cell module parallel to the wall surface. [Figure 14]2 is a partially cutaway perspective view of two laterally adjacent solar cell modules of the installation structure of FIG. 1, viewed from below on the front side. FIG. [Figure 15] FIG. 2 is a perspective view of two laterally adjacent solar cell modules of the installation structure of FIG. 1, viewed from above on the rear surface. [Figure 16] FIG. 10 is a perspective view of a solar cell module according to a second embodiment of the present invention, viewed from below on the back surface. [Figure 17] FIG. 17 is a vertical cross-sectional perspective view of the solar cell module of FIG. 16, viewed from below on the rear surface. [Figure 18] FIG. 17 is a cross-sectional perspective view of the solar cell module of FIG. 16, viewed from above on the back surface. [Figure 19] FIG. 10 is a side view of a main part of a solar cell module according to another embodiment of the present invention. [Figure 20] FIG. 10 is a cross-sectional perspective view of a main part of a solar cell module installation structure according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description, unless otherwise specified, the installation posture shown in FIG.

[0029] 1 and 2, a solar cell module installation structure 1 (hereinafter also simply referred to as installation structure 1) according to a first embodiment of the present invention is configured to install a plurality of solar cell modules 2 (2a to 2d) on a wall surface 200 of a building using support members 3. That is, the installation structure 1 is composed of a plurality of solar cell modules 2a to 2d and the support members 3, and the solar cell modules 2a to 2d are arranged in a grid pattern when viewed from the front. The installation structure 1 of this embodiment is mainly used in houses, and is installed on a wall surface 200 of the house to form the exterior appearance of the house.

[0030] As shown in FIG. 3, the solar cell module 2 has a solar cell panel 10 and a frame member 11 as main components.

[0031] The solar cell panel 10 is a photoelectric conversion panel equipped with a solar cell therein, and is capable of converting the light energy received in the power generation region 25 into electrical energy. As shown in FIG. 4, the solar cell panel 10 is mainly composed of a main panel 20, terminal boxes 21a and 21b, and wiring sections 22a and 22b.

[0032] The main panel 20 has solar cells formed on a glass substrate, and the solar cells are sealed with sealing glass or a sealing film. As shown in FIG. 4, the main panel 20 has a light receiving surface 23 (first main surface) and a back surface 24 (second main surface), and is a rectangular plate-like panel when the light receiving surface 23 is viewed from the front. As shown in FIG. 4(a), when viewed from the front, the light receiving surface 23 has horizontal sides 26 and 27 extending in the horizontal direction X and vertical sides 28 and 29 extending in the vertical direction Y, with the power generating region 25 located in the center.

[0033] As shown in FIG. 4(b), the terminal boxes 21a and 21b are provided in the center of the rear surface 24 of the main panel 20, and connect the wires extending from the solar cells in the main panel 20 to the wiring portions 22a and 22b. The terminal boxes 21a and 21b are provided in the center of the rear surface 24 of the main body panel 20, and are arranged side by side in the lateral direction X with a gap therebetween.

[0034] The wiring sections 22a, 22b extend from the terminal boxes 21a, 21b and are wirings that connect the solar cells in the main panel 20 to which they are connected to the solar cells in the main panel 20 of other solar cell modules 2 or an external power source. The wiring portions 22a and 22b are wires connected in the terminal boxes 21a and 21b to different electrodes of the solar cells in the main panel 20. Specifically, the wiring portion 22a is a positive wiring whose base end is connected to the positive electrode of the solar cell in the main panel 20, and the wiring portion 22b is a negative wiring whose base end is connected to the negative electrode of the solar cell in the main panel 20. The wiring portions 22a and 22b are provided at their ends (the ends opposite the terminal boxes 21a and 21b) with connector portions 30a and 30b that can be connected to other wiring portions 22b and 22a.

[0035] As shown in FIG. 5, the frame member 11 includes a holding frame 40 and mounting frames 41 and 42 (mounting portions). The holding frame 40 is a frame that holds the main body panel 20, and is a reinforcing frame that has greater bending rigidity than the main body panel 20. Specifically, the holding frame 40 is a metal frame made of aluminum. As shown in FIG. 3, the holding frame 40 is a frame that is shaped like the letter "R" when viewed from the front, and extends along each side 26 to 29 of the main panel 20 so as to surround the power generation region 25. As shown in FIG. 5, the holding frame 40 includes horizontal frames 45 and 46 and vertical frames 47 and 48.

[0036] As shown in FIGS. 5 and 6, the horizontal frames 45 and 46 are elongated frames extending in the horizontal direction X along the horizontal sides 26 and 27, and have holding recesses 50 and spacing pieces 51.

[0037] As shown in FIG. 6, the holding recess 50 is a recess that holds the vicinity of the end of the solar cell panel 10 in the vertical direction Y and protects the end face including the horizontal sides 26 and 27 of the solar cell panel 10. The holding recess 50 has a U-shaped cross section extending along the horizontal sides 26, 27, and is composed of a front surface covering portion 52, a back surface covering portion 53, and an end surface covering portion .

[0038] The front surface cover portion 52 is a portion that covers the light receiving surface 23 side of the solar cell panel 10 as shown in FIG. The back surface cover portion 53 is a portion that covers the back surface 24 side of the solar cell panel 10, and faces the front surface cover portion 52 with the solar cell panel 10 interposed therebetween. The end surface side covering portion 54 is a portion that covers the end surface of the solar cell panel 10 in the longitudinal direction Y, and connects the ends of the front surface side covering portion 52 and the back surface side covering portion 53. In other words, the front surface side covering portion 52 and the back surface side covering portion 53 are erected in the same direction from the end of the end surface side covering portion 54, and extend inward (toward the center of the main panel 20).

[0039] As shown in FIG. 6, the gap maintaining piece 51 is a portion that ensures an installation space for the terminal boxes 21a and 21b of the solar cell panel 10, and is composed of an opposing wall portion 55 and a connecting wall portion . The opposing wall portion 55 is a wall portion that faces the rear surface side covering portion 53 at a distance from the rear surface side covering portion 53 on the rear side of the rear surface side covering portion 53 . The connecting wall portion 56 is a wall portion that connects the rear surface side covering portion 53 and the opposing wall portion 55 , and is erected from the rear surface side covering portion 53 and also erected from the opposing wall portion 55 . That is, the opposing wall portion 55 is erected in the same direction as the rear surface side covering portion 53, and extends inward (toward the center of the main body panel 20).

[0040] As shown in FIGS. 5 and 7, the vertical frames 47, 48 are elongated frames extending in the vertical direction Y along the vertical sides 28, 29, and have holding recesses 70, spacing pieces 71, and connecting portions 77, 78.

[0041] As shown in FIG. 7, the holding recess 70 is a recess that holds the vicinity of the end of the solar cell panel 10 in the horizontal direction X and protects the end face including the vertical sides 28 and 29 of the solar cell panel 10. The holding recess 70 has a U-shaped cross section extending along the vertical sides 28 and 29 , and is composed of a front surface covering portion 72 , a back surface covering portion 73 and an end surface covering portion 74 .

[0042] The front surface cover portion 72 is a portion that covers the light receiving surface 23 side of the solar cell panel 10. The back surface side covering portion 73 is a portion that covers the back surface 24 side of the solar cell panel 10, and faces the front surface side covering portion 72 with the solar cell panel 10 interposed therebetween. The end surface side covering portion 74 is a portion that covers the end surface of the solar cell panel 10 in the lateral direction X, and connects the ends of the front surface side covering portion 72 and the back surface side covering portion 73. In other words, the front surface side covering portion 72 and the back surface side covering portion 73 are erected in the same direction from the ends of the end surface side covering portion 74, and extend inward (toward the center of the main panel 20).

[0043] The gap maintaining piece 71 is a portion that ensures installation space for the terminal boxes 21a, 21b of the solar cell panel 10, and is composed of an opposing wall portion 75 (locking wall portion) and a first connecting wall portion 76 as shown in FIG. The opposing wall portion 75 is a wall portion that faces the rear surface side cover portion 73 at a distance from the rear surface side cover portion 73 on the rear side of the rear surface side cover portion 73, and also serves as a locking wall portion that engages with the mounting frames 41, . The first connecting wall 76 is a wall that connects the rear cover 73 and the opposing wall 75 , and is erected from the rear cover 73 and also erected from the opposing wall 75 . That is, the opposing wall portion 75 is erected in the same direction as the rear surface side covering portion 73, and extends inward (toward the center of the main body panel 20).

[0044] As shown in FIG. 5, the connecting portions 77, 78 are provided at the ends of the vertical frames 47, 48 in the longitudinal direction, and are portions that connect to the ends of the horizontal frames 45, 46.

[0045] The mounting frames 41 and 42 are mounting portions that are attached to the support member 3, and also serve as reinforcing frames that reinforce the rigidity of the solar cell panel 10. As shown in Figure 5, the mounting frames 41, 42 extend along the vertical frames 47, 48, and it is preferable that their longitudinal length be at least half the length of the vertical sides 28, 29 of the main panel 20, and more preferably at least 3 / 4 the length. It is preferable that the longitudinal length of the mounting frames 41 and 42 is shorter than the longitudinal length of the vertical frames 47 and 48 .

[0046] The mounting frames 41 and 42 have greater bending rigidity than the main body panel 20, and specifically, are metal frames made of metal. As shown in FIG. 5, the mounting frames 41 and 42 are elongated frames having a U-shaped cross section, and each include a panel side wall portion 90, a support side wall portion 91, and a second connecting wall portion 92.

[0047] As shown in FIG. 7, the panel side wall portion 90 is an engaging wall portion that is attached by engaging with the opposing wall portion 75 of the vertical frame 47 (or the opposing wall portion 75 of the vertical frame 48). The support side wall 91 is a wall that faces the panel side wall 90 at a distance from the panel side wall 90 on the back side of the panel side wall 90. The support side wall 91 also serves as an engaging wall that engages with the locking piece 101 (see FIG. 2) and the engaging portion 102 (see FIG. 2) of the support member 3. In other words, the support side wall 91 functions as an attachment portion for the support member 3. The second connecting wall portion 92 is a wall portion that connects the panel side wall portion 90 and the support side wall portion 91. That is, the panel side wall portion 90 and the support side wall portion 91 are erected in the same direction from both end portions of the second connecting wall portion 92 and extend outward.

[0048] As shown in FIGS. 5 and 8, the second connection wall portion 92 includes wiring holes 93 (93a, 93b) (through-hole portions) and notches 94 (94a, 94b) (mounting-side engagement portions). 8, the wiring holes 93a, 93b are provided in the longitudinal middle of the mounting frames 41, 42, and are through holes that penetrate the second connecting wall portions 92, 92 in the thickness direction. In other words, the wiring holes 93a, 93b are through holes that penetrate the second connecting wall portions 92, 92 from the inside to the outside with the terminal boxes 21a, 21b as the reference when the light receiving surface 23 is viewed from the front. The term "middle portion" as used herein refers to a portion other than both end portions in one direction and between the end portions. The same applies hereinafter. In this embodiment, the wiring holes 93a, 93b are arranged at positions corresponding to the terminal boxes 21a, 21b in the vertical direction Y, and more specifically, are provided in the central portion of the second connection wall portion 92 in the vertical direction Y. As shown in FIG. 9, the wiring holes 93a and 93b allow connector portions 30a and 30b of wiring portions 22a and 22b extending from the terminal boxes 21a and 21b to pass through. The opening shape of the wiring holes 93a and 93b is not particularly limited and may be a circle as shown in Fig. 5, a polygon such as a triangle, a square, or a pentagon, or an ellipse or oval.

[0049] As shown in Figure 8, the cutout portions 94a, 94b are cutouts provided in the vertical lower end portions of the second connecting wall portions 92, 92 of the mounting frames 41, 42, and are engaging portions that can engage with the locking portion 132 of the support member 3 (see Figure 10). The notches 94a and 94b have a width in the thickness direction of the solar cell panel 10, a length in the extension direction of the mounting frames 41 and 42, and a depth in the vertically upward direction. As shown in the enlarged view of Figure 8, the cutout portion 94 (94a, 94b) is trapezoidal when viewed from the side, and has a bottom wall portion 95, a first inner wall portion 96 (parallel surface), and a second inner wall portion 97 (inclined surface).

[0050] The bottom wall portion 95 constitutes the bottom of the cutout portion 94, and is a wall portion against which the end face of the locking portion 132 abuts when attached to the support member 3. The bottom wall portion 95 constitutes the upper end portion of the cutout portion 94 in the installed state. The first inner wall portion 96 is a vertical wall portion that hangs down vertically from the front end portion of the bottom wall portion 95, and is a parallel surface that is parallel to the support surface 129 when the installation structure 1 is completed. The second inner wall portion 97 is a wall portion that extends from the rear end portion of the bottom wall portion 95 and is inclined at a predetermined inclination angle θ with respect to the vertical direction. That is, as shown in Fig. 8, the second inner wall portion 97 has an inclined surface that is inclined at a predetermined inclination angle θ1 with respect to a vertical axis L that extends in the vertical direction when viewed from the side. The tilt angle θ1 shown in Fig. 8 can be changed as appropriate by the tilt angle θ2 (see Fig. 13) of the tilted posture, which will be described later, but is preferably 10 degrees or greater, and more preferably 30 degrees or greater. The tilt angle θ1 is preferably less than 90 degrees, and more preferably 60 degrees or less. Within this range, the locking portion 132 is less likely to come off the notch 94 when the solar cell module 2 is in the tilted posture. In the cutout portion 94, the distance between the first inner wall portion 96 and the second inner wall portion 97 gradually increases in the depth direction (direction from the lower end portion toward the upper end portion of the mounting frames 41, 42).

[0051] Here, the positional relationship between the components of the solar cell module 2 will be described.

[0052] 6 , the upper end of the main panel 20 of the solar cell module 2 is inserted into the holding recess 50a of the upper frame 45 in the up-down direction (longitudinal direction Y), and the lower end is attached to the holding recess 50b of the lower frame 46 (first frame portion). That is, the upper end surface of the main panel 20 is protected by the upper frame 45, and the lower end surface is protected by the lower frame 46. 7, the left side end of the main panel 20 of the solar cell module 2 in the left-right direction (horizontal direction X) is inserted into the holding recess 70a of the left frame 47 (second frame portion), and the right side end is inserted into the holding recess 70b of the right frame 48 (second frame portion). That is, when viewed from the front, the left side end face of the main panel 20 is protected by the left frame 47, and the right side end face is protected by the right frame 48. As can be seen from Figure 5, the connecting portions 77a, 77b provided at the upper ends of the vertical frames 47, 48 are connected to both ends of the horizontal frame 45, and the connecting portions 78a, 78b provided at the lower ends of the vertical frames 47, 48 are connected to both ends of the horizontal frame 46. The power generating region 25 of the solar cell panel 10 is exposed from the frame member 11 as shown in FIG.

[0053] As shown in FIG. 7, the mounting frames 41 and 42 are located on the rear surface 24 side of the main body panel 20, and the panel side walls 90 and 90 are engaged with the opposing walls 75 and 75 of the vertical frames 47 and 48. The mounting frames 41, 42 are fixed in place in such a manner that the surfaces of the panel side walls 90, 90 opposite the main panel 20 are in surface contact with the surfaces of the opposing walls 75, 75 facing the main panel 20, and are secured in this state by fastening elements (not shown). When viewed from the side, the cutout portion 94a of the mounting frame 41 overlaps with the cutout portion 94b of the mounting frame 42. In other words, the cutout portion 94a of the mounting frame 41 is located on the projection plane of the cutout portion 94b of the mounting frame 42 in the lateral direction X.

[0054] As shown in Figures 1 and 2, the support member 3 extends in the vertical direction (longitudinal direction Y) and supports the solar cell module 2 against the wall surface 200, and as shown in Figure 10, it is equipped with rail portions 100a to 100c, a locking piece 101, and an engagement portion 102. The rail portions 100a to 100c are rails attached across a plurality of body portions 202 (see FIG. 11) of the wall surface 200, and extend in the vertical direction (longitudinal direction Y). As shown in FIG. 10, the rail portions 100a to 100c each include a base portion 110 and a raised portion 111 that is raised from the base portion 110. The base portion 110 is attached to the body portion 202 and includes tip side cover portions 120, 121 that cover the tip surface of the body portion 202 in the protruding direction, and side side cover portions 122, 123 that cover the sides of the body portion 202. The raised portion 111 is a portion that is raised relative to the base portion 110 and includes a support portion 125 and upright wall portions 126 and 127 . The support portion 125 is a portion that constitutes the end face of the raised portion 111 in the raised direction. As shown in the enlarged view of FIG. 10, the support portion 125 has a support surface 129 extending substantially vertically at the end in the protruding direction. 10, the standing wall portions 126, 127 are walls that stand upright from the base portion 110 and are connected to both widthwise ends of the support portion 125. That is, the support portion 125 forms a step with the tip side cover portions 120, 121 of the base portion 110, and is continuous in a stepped manner via the standing wall portions 126, 127.

[0055] As shown in the enlarged view of FIG. 10, the locking piece 101 is attached to the support surface 129 of the support portion 125 and is a part that engages with the frame member 11 of the solar cell module 2, and is a metal receiving bracket that receives the load of the solar cell module 2. The locking piece 101 includes a fixing portion 130 (connecting portion), a standing wall portion 131 (connecting portion), and a locking portion 132. The fixed portion 130 is a portion that is fixed to the support surface 129 of the support portion 125 . The standing wall portion 131 is a wall portion that rises from the fixed portion 130 in a direction intersecting the fixed portion 130 (in this embodiment, a direction perpendicular to the fixed portion 130). The locking portion 132 is a portion that is bent upward from the end of the standing wall portion 131 in the rising direction, and forms a step with the fixing portion 130, and is continuous in a stepped manner via the standing wall portion 131. In other words, the locking portions 132 face the support surface 129 with a gap between them, and are parallel to each other.

[0056] The engaging portion 102 is rotatably fixed to the support portion 125 by a fastening element, and the claw portions 140, 141 are engaged with the supporting side wall portion 91 of the mounting frame 41 to lock the solar cell module 2.

[0057] The wall surface 200 constitutes the exterior wall of the building, and is a vertical wall that stands in a direction substantially vertical to the floor surface (horizontal plane) (in this embodiment, a direction perpendicular to the horizontal plane). As shown in FIG. 11, the wall surface 200 has a plurality of body groups 201a to 201c arranged side by side in the lateral direction X (left and right direction) when viewed from the front. The body groups 201a to 201c are made up of a plurality of body parts 202 arranged in a straight line in the longitudinal direction Y (vertical direction). The body parts 202 are protruding parts in the shape of a quadrangular prism that protrude forward from the wall surface 200.

[0058] Next, a typical construction method for the installation structure 1 will be described along with the positional relationship of each component.

[0059] 11, the rail portions 100a to 100c of the support member 3 are placed and fixed to the body portions 202 of each of the body groups 201a to 201c of the wall surface 200. That is, when the wall surface 200 is viewed from the front, the rail portions 100a to 100c are arranged side by side in the left-right direction (horizontal direction X) and fixed so that their extension direction is the up-down direction (vertical direction Y).

[0060] At this time, as shown in Figure 10, the locking piece 101 is fixed in place with the fixed portion 130 in surface contact with the support surface 129 of the support portion 125, the standing wall portion 131 forms the bottom surface, and the locking portion 132 extends vertically upward.

[0061] Next, the locking portions 132 of the locking pieces 101 are inserted into the cutout portions 94 of the solar cell module 2 and aligned in the lateral direction X (left-right direction) as shown in Fig. 12. Then, if necessary, the solar cell module 2 is tilted (tilted posture) with respect to the support surface 129 as shown in Fig. 13(a), and the wiring portions 22a and 22b extending from the terminal boxes 21a and 21b of the solar cell module 2 are inserted into the corresponding wiring holes 93a and 93b, respectively.

[0062] At this time, the solar cell module 2 is tilted relative to the wall surface 200, and the locking portions 132 of the locking pieces 101 come into contact with the inclined surfaces of the second inner wall portions 97 of the cutout portions 94a and 94b as shown in the enlarged view of FIG. 13(a). Furthermore, the support member 3 supports the solar cell module 2 at a predetermined inclination angle θ2 with respect to the support surface 129 by inserting the locking portion 132 into the notch portion 94. 13(a) is equal to or greater than 10 degrees, and preferably equal to or greater than 30 degrees. Furthermore, the inclination angle θ2 is less than 90 degrees, and more preferably equal to or less than 60 degrees. Within this range, the locking portion 132 is less likely to come off the notch portion 94.

[0063] Next, as shown in Figure 13(b), the solar cell module 2 is rotated toward the wall surface 200 so that it is parallel to the wall surface 200 (support surface 129) (parallel posture), and the engaging portion 102 of the support member 3, which is in a posture along the extension direction of the support member 3, is rotated so that the claw portion 140 engages with the support side wall portions 91, 91 of the mounting frames 41, 42 of the solar cell module 2, and the solar cell module 2 is installed against the wall surface 200.

[0064] At this time, the light receiving surface 23 of the solar cell module 2 is parallel to the wall surface 200, and the first inner wall portion 96 faces the locking portion 132 with a gap therebetween, as shown in the enlarged view of FIG. 13(b).

[0065] Next, the positional relationship between the components of the installation structure 1 will be described.

[0066] The first solar cell module 2a and the second solar cell module 2b adjacent to each other in the horizontal direction X are electrically connected in series or in parallel. Specifically, as shown in Fig. 15 , the wiring section 22b extending from the terminal box 21b of the first solar cell module 2a passes through the wiring hole 93b, and further passes through the wiring hole 93a of the second solar cell module 2b, and is connected to the wiring section 22a extending from the terminal box 21a of the second solar cell module 2b on the rear surface 24 side of the second solar cell module 2b. As shown in FIG. 14, the locking piece 101 of the support member 3 is inserted across and engaged with the notch 94b of the mounting frame 42 of the first solar cell module 2a and the notch 94a of the mounting frame 41 of the second solar cell module 2b.

[0067] 1, in the installation structure 1 of this embodiment, the solar cell modules 2a, 2b (2c, 2d) adjacent to each other in the horizontal direction X have the same length in the vertical direction Y, and the solar cell modules 2a, 2c (2b, 2d) adjacent to each other in the vertical direction Y have different lengths in the vertical direction Y. Specifically, the length in the vertical direction Y of the solar cell modules 2c, 2d located in the lower row is longer than the length in the vertical direction Y of the solar cell modules 2a, 2b located in the upper row.

[0068] According to the installation structure 1 of this embodiment, the locking portions 132 of the locking pieces 101 of the support member 3 are inserted into the cutout portions 94 of the solar cell module 2 to support the solar cell module 2. Therefore, the vertical load of the solar cell module 2 can be received by the locking pieces 101, and the solar cell module 2 is less likely to fall during assembly, allowing for safe assembly. Furthermore, according to the installation structure 1 of this embodiment, the position of the solar cell module 2 in the height direction relative to the wall surface 200 is determined by the locking pieces 101 of the support member 3, so that the positioning of the solar cell module 2 is easy.

[0069] According to the installation structure 1 of this embodiment, during construction, the solar cell module 2 is tilted relative to the support member 3 along the inclined surface provided on the second inner wall portion 97 of the cutout portion 94. In this way, a space can be formed between the support surface 129 and the solar cell module 2 while the solar cell module 2 is supported by the support member 3, and maintenance of the terminal boxes 21a and 21b can be easily performed.

[0070] According to the installation structure 1 of this embodiment, the mounting frames 41, 42 have higher rigidity than the main body panel 20 and also serve to reinforce the main body panel 20. Therefore, even when subjected to a load due to wind or the like, the main body panel 20 is less likely to bend in the extension direction of the mounting frames 41, 42 and is less likely to be damaged.

[0071] According to the installation structure 1 of this embodiment, the holding frame 40 having the holding recesses 50a, 50b, 70a, 70b that hold the main body panel 20 and the mounting frames 41, 42 having the support side wall portions 91 that are attached to the support member 3 are separate members. Therefore, the holding frame 40 and the mounting frames 41, 42 can be replaced independently, reducing maintenance costs.

[0072] According to the installation structure 1 of this embodiment, the panel side wall portions 90 of the mounting frames 41, 42 are fixed in surface contact with the opposing wall portion 75 of the holding frame 40. Therefore, even if a load is applied by wind or the like, the mounting frames 41, 42 are unlikely to come off from the holding frame 40.

[0073] According to the installation structure 1 of this embodiment, the locking pieces 101 of the support member 3 are inserted across and engaged with the notch portions 94b of the mounting frame 42 of the first solar cell module 2a and the notch portions 94a of the mounting frame 41 of the second solar cell module 2b. This reduces the number of parts.

[0074] According to the installation structure 1 of this embodiment, the solar cell module 2 is supported by a plurality of rail portions 100a, 100b (100b, 100c) that extend substantially vertically to one wall surface 200. Therefore, the solar cell module 2 is less likely to fall.

[0075] According to the installation structure 1 of this embodiment, the rail portions 100a to 100c are connected to a plurality of body portions 202 arranged in a vertical direction on the wall surface 200. Therefore, the support member 3 is unlikely to fall off the wall surface 200.

[0076] According to the installation structure 1 of this embodiment, the vertical length of the rail portions 100a to 100c is equal to or greater than the length of the solar cell module 2, the mounting frames 41, 42 extend along the extension direction of the rail portions 100a to 100c, and the wiring portions 22a, 22b are spatially blocked by the rail portions 100a to 100c or the mounting frames 41, 42. According to the installation structure 1 of this embodiment, even with this structure, the wiring sections 22a, 22b extending from the terminal boxes 21a, 21b pass through the wiring holes 93a, 93b of the mounting frames 41, 42 and extend to the outside of the mounting frames 41, 42. Therefore, the wiring sections 22a, 22b can be directly connected to an external power source or another solar cell module 2 without detouring around the mounting frames 41, 42. As a result, compared to when the wiring sections 22a, 22b detouring around the mounting frames 41, 42, the routing of the wiring sections 22a, 22b can be simplified, the length of the wiring sections 22a, 22b can be shortened, and installation time can be shortened. Therefore, compared to when the wiring sections detouring around the mounting frames 41, 42, manufacturing costs can be reduced and workability during manufacturing is improved.

[0077] According to the installation structure 1 of this embodiment, the wiring portions 22a and 22b are passed through the wiring holes 93a and 93b, and therefore the approximate positions of the wiring portions 22a and 22b are determined by the wiring holes 93a and 93b, making it easy to position the wiring portions 22a and 22b.

[0078] According to the installation structure 1 of this embodiment, wiring holes 93a, 93b through which the wiring portions 22a, 22b pass are formed in the second connection wall portion 92, so that the wiring portions 22a, 22b can pass through in approximately the shortest distance, thereby reducing manufacturing costs.

[0079] 15, the terminal box 21b of the first solar cell module 2a is biased toward the adjacent second solar cell module 2b in the lateral direction X (parallel installation direction), and the terminal box 21a of the second solar cell module 2b is biased toward the first solar cell module 2a. This makes it possible to shorten the length of the wiring portion 22b extending from the terminal box 21b of the first solar cell module 2a and / or the length of the wiring portion 22a extending from the terminal box 21a of the second solar cell module 2b, thereby reducing manufacturing costs. According to the installation structure 1 of this embodiment, the wiring portions 22a, 22b are not sandwiched between the first solar cell module 2a and the second solar cell module 2b, and the distance between the first solar cell module 2a and the second solar cell module 2b can be narrowed, thereby increasing the number of solar cell modules 2 that can be installed per unit area. Furthermore, safety is also high.

[0080] Next, an installation structure 300 according to a second embodiment of the present invention will be described. Note that the same components as those in the installation structure 1 according to the first embodiment will be given the same reference numerals and descriptions thereof will be omitted.

[0081] In the installation structure 300 of the second embodiment of the present invention, the holding recesses 50a, 50b, 70a, 70b of the holding frame 40 and the support side walls 91, 91 of the mounting frames 41, 42 are configured as a single member. That is, as shown in Fig. 16 , the installation structure 300 has a frame member 311, which has the function of holding the solar cell panel 10 and the function of attaching it to the support member 3. The installation structure 300 includes a plurality of solar cell modules 302 and a support member 3 . As shown in FIG. 16, the solar cell module 302 has a solar cell panel 10 and a frame member 311 as main components.

[0082] The frame member 311 is a frame that holds the main body panel 20, and is specifically a metal frame made of aluminum. As shown in FIG. 16, the frame member 311 includes horizontal frames 45 and 346 (mounting portions) and vertical frames 347 and 348 (mounting portions).

[0083] The horizontal frame 346 is a reinforcing frame that extends in the horizontal direction X along the lower side 27, as shown in FIG. The horizontal frame 346 has a holding recess 50 and a spacing piece 351 .

[0084] The gap maintaining piece 351 is composed of an opposing wall portion 55 and a connecting wall portion 356 . The connecting wall portion 356 is a wall portion that connects the rear surface side covering portion 53 and the opposing wall portion 55, and includes a notch portion 394 (attachment side engaging portion).

[0085] As shown in FIG. 17, the notch 394 is a notch provided in the lower end portion of the connecting wall portion 356 in the vertical direction, and is an engaging portion that can be engaged with the locking portion 132 of the support member 3. The notch 394 is a notch groove provided over the entire length of the connecting wall 356 . The notch 394 has a width in the thickness direction of the solar cell panel 10, a length in the thickness direction of the connecting wall 356, and a depth in the vertically upward direction.

[0086] The cutout portion 394 has a trapezoidal cross section, similar to the cutout portion 94 of the first embodiment, and includes a bottom wall portion 95, a first inner wall portion 96, and a second inner wall portion 97.

[0087] The vertical frames 347 and 348 are reinforcing frames that extend in the vertical direction Y along the vertical sides 28 and 29, as shown in FIG. As shown in FIGS. 17 and 18, the vertical frames 347 and 348 have a holding recess 70, a spacing piece 371, and connecting portions 77 and 78.

[0088] The gap maintaining piece 371 is composed of an opposing wall portion 75 and a connecting wall portion 376 . The connecting wall portion 376 is a wall portion that connects the rear surface side covering portion 73 and the opposing wall portion 75, and is provided with wiring holes 493a, 493b and notches 494a, 494b (mounting side engaging portions).

[0089] As shown in FIG. 18, the wiring holes 493a and 493b are provided in the middle of the longitudinal direction of the vertical frames 347 and 348, and are through holes that penetrate the connection wall portions 376 and 376 in the thickness direction. The wiring holes 493a and 493b allow the connector portions 30a and 30b of the wiring portions 22a and 22b extending from the terminal boxes 21a and 21b to pass through.

[0090] The notches 494a and 494b are notches provided in the lower end portion of the connecting wall portion 376 in the vertical direction, and are engaging portions that can be engaged with the locking portion 132 of the support member 3. The notches 494a and 494b have a width in the thickness direction of the solar cell panel 10, a length in the thickness direction of the connecting wall 376, and a depth in the vertically upward direction.

[0091] The cutout portions 494a and 494b have a trapezoidal cross section, similar to the cutout portion 94 of the first embodiment, and include a bottom wall portion 95, a first inner wall portion 96, and a second inner wall portion 97.

[0092] Next, the positional relationship between the components of the solar cell module 302 will be described.

[0093] The connecting wall portion 356 of the horizontal frame 346 and the connecting wall portions 376, 376 of the vertical frames 347, 348 form the same plane as shown in FIG. The cutout portion 394 of the horizontal frame 346 and the cutout portions 494a, 494b of the vertical frames 347, 348 have continuous internal spaces and form a single engagement groove 399 (mounting-side engagement portion). That is, when the horizontal frame 346 and the vertical frames 347, 348 are viewed from the side, there is an overlapping portion between the cutout portion 394 and the cutout portions 494a, 494b, and the engagement groove 399 extends across the connecting wall portion 356 of the horizontal frame 346 and the connecting wall portions 376, 376 of the vertical frames 347, 348. Furthermore, the internal space of the engagement groove 399 is continuous in the extension direction and is open to the outside.

[0094] According to the installation structure 300 of the second embodiment, the holding recesses 50a, 50b, 70a, 70b of the holding frame 40 of the first embodiment and the support side wall portions 91, 91 of the mounting frames 41, 42 are composed of a single member (frame member 311), thereby reducing the number of parts and improving workability compared to conventional methods.

[0095] According to the installation structure 300 of the second embodiment, engagement grooves 399, which are notched grooves, are provided across the horizontal frame 346 and the vertical frames 347, 348. Therefore, during construction, the solar cell module 2 can be moved in the extension direction of the engagement grooves 399 by temporarily placing the support member 3 with the locking portions 132 of the locking pieces 101 inserted into the engagement grooves 399. As a result, alignment in the horizontal direction X is easy.

[0096] In the above-described embodiment, the second inner wall portion 97 is provided with an inclined surface, but the present invention is not limited to this. As shown in Figure 19, the first inner wall portion 96 may be provided with an inclined surface. In the above-described embodiment, the second inner wall portion 97 has an inclined surface on the entire surface thereof, but the present invention is not limited to this. An inclined surface may be formed only on a part of the second inner wall portion 97 or the first inner wall portion 96.

[0097] In the above-described embodiment, wiring holes 93a, 93b are provided penetrating through the second connection walls 92 in the thickness direction, but the present invention is not limited to this. As shown in Fig. 20, cutout portions 593 (penetration portions) may be provided that extend from the back side to the second connection walls 92 and penetrate from the inside to the outside of the terminal box 21 when the light receiving surface 23 is viewed from the front.

[0098] In the above embodiment, two terminal boxes 21a, 21b are provided on the rear surface 24 of the solar cell panel 10, but the present invention is not limited to this. One terminal box 21 may be provided on the rear surface 24 of the solar cell panel 10, or three or more terminal boxes 21 may be provided.

[0099] In the above-described embodiment, the claws 140, 141 of the engagement portion 102 clamp the support side wall portion 91 together with the support surface 129 to fix the solar cell module 2, but the present invention is not limited to this. The solar cell module 2 may be fixed to the support side wall portion 91 by a fastening element.

[0100] In the above embodiment, the length in the vertical direction Y of the solar cell modules 2c and 2d located in the lower tier is longer than the length in the vertical direction Y of the solar cell modules 2a and 2b located in the upper tier, but the present invention is not limited to this. The length in the vertical direction Y of the solar cell modules 2c and 2d located in the lower tier may be the same as or shorter than the length in the vertical direction Y of the solar cell modules 2a and 2b located in the upper tier.

[0101] In the above-described embodiment, the wiring holes 93a, 93b (493a, 493b) are provided in the central portion of the second connecting wall portion 92 in the vertical direction Y, but the present invention is not limited to this, and the arrangement of the wiring holes 93a, 93b (493a, 493b) may be changed to match the positions of the terminal boxes 21a, 21b. For example, if the terminal boxes 21a, 21b are located unevenly toward the ends in the vertical direction Y, the positions of the wiring holes 93a, 93b (493a, 493b) may also be unevenly located toward the ends to match the positions of the terminal boxes 21a, 21b. In the above embodiment, the wiring holes 93a, 93b (493a, 493b) are arranged at positions corresponding to the terminal boxes 21a, 21b in the vertical direction Y, but the present invention is not limited to this. The wiring holes 93a, 93b (493a, 493b) may be arranged at positions offset from the terminal boxes 21a, 21b in the vertical direction Y.

[0102] In the second embodiment described above, the wiring holes 493a, 493b are provided in the connecting walls 376, 376 of the vertical frames 347, 348, but the present invention is not limited to this. For example, when electrically connecting solar cell modules 2, 2 adjacent to each other in the vertical direction Y, the wiring holes 493a, 493b may be provided in the horizontal frames 45, 346.

[0103] In the above-described embodiments, each component can be freely substituted or added between the respective embodiments as long as it falls within the technical scope of the present invention. [Explanation of symbols]

[0104] 1,300 installation structure 2,302 solar modules 2a First solar cell module 2b Second solar cell module 3 Support member 11,311 frame members 20 Main panel 21a, 21b Terminal box 23 Photosensitive surface 24 Back side 40 Retaining Frame 41, 42 Mounting frame (mounting part) 70, 70a, 70b Retaining recess 73 Back side cover 75 Opposing wall (locking wall) 76 First connecting wall 90 Panel side wall 91 Support side wall part 92 Second connecting wall 94, 94a, 94b, 394, 494a, 494b Notch (mounting side engagement part) 97 2nd inner wall (slanted surface) 101 Locking piece 129 Support surface 130 Fixed part (connection part) 131 Vertical wall section (connection section) 132 Locking part 200 Wall 346 Horizontal frame (first frame part, mounting part) 347, 348 Vertical frame (second frame part, mounting part) 399 Engagement groove (mounting side engagement part)

Claims

1. A solar cell module installation structure for installing a solar cell module on a wall surface of a building using a support member, The support member has a support surface and a locking piece, the support surface has a substantially vertical extent; the locking piece has a locking portion that faces the support surface with a gap therebetween and extends upward, and a connecting portion that connects the locking portion to the support surface, The solar cell module has a main panel and a frame member, The frame member has a holding recess and an attachment portion, the holding recess holds a part of the main body panel and is in contact with the light receiving surface and the back surface of the main body panel, the mounting portion is provided on the rear surface side of the main body panel, has greater rigidity than the main body panel, and extends vertically by a length equal to or greater than half of one side of the main body panel; The mounting portion has a mounting side engaging portion, the attachment-side engaging portion is a notch that is provided at a lower end portion of the attachment portion in a vertical direction and has a depth extending upward; The support member supports the solar cell module so that the locking portion is inserted into the mounting side engagement portion, allowing the solar cell module to be tilted at an inclination angle of 10 degrees or more relative to the support surface, and the solar cell module can be supported in an inclined position tilted at the inclination angle relative to the support surface.

2. A solar cell module installation structure for installing a solar cell module on a wall surface of a building using a support member, comprising: The support member has a support surface and a locking piece, the support surface has a substantially vertical extent; the locking piece has a locking portion that faces the support surface with a gap therebetween and extends upward, and a connecting portion that connects the locking portion to the support surface, The solar cell module has a main panel and a frame member, The frame member has a holding recess and an attachment portion, the holding recess holds a part of the main body panel and is in contact with the light receiving surface and the back surface of the main body panel, the mounting portion is provided on the rear surface side of the main body panel, has greater rigidity than the main body panel, and extends vertically by a length equal to or greater than half of one side of the main body panel; The mounting portion has a mounting side engaging portion, the attachment-side engaging portion is a notch that is provided at a lower end portion of the attachment portion in a vertical direction and has a depth extending upward; the support member supports the solar cell module so that the locking portion is inserted into the mounting-side engaging portion and the solar cell module can tilt at an angle of 10 degrees or more with respect to the support surface, An installation structure for a solar cell module, wherein an inner wall portion of the mounting-side engaging portion includes an inclined surface that is inclined in a direction away from the main panel in a depth direction of the mounting-side engaging portion.

3. The solar cell module installation structure according to claim 1 or 2, wherein the frame member includes a holding frame having the holding recess and a mounting frame having the mounting portion.

4. The holding frame has a rear cover portion, a first connecting wall portion, and a locking wall portion, the rear surface covering portion constitutes a part of the holding recess and covers the rear surface side of the main body panel, the engaging wall portion faces the back surface side cover portion at an interval in the thickness direction of the main body panel on the back surface side of the main body panel, the first connecting wall portion connects the rear cover portion and the locking wall portion, the mounting frame has a panel side wall portion and a support side wall portion that face each other with a gap therebetween, and a second connecting wall portion that connects the panel side wall portion and the support side wall portion; The solar cell module installation structure according to claim 3 , wherein the panel side wall portion is fixed in surface contact with a surface of the locking wall portion facing the main panel.

5. A solar cell module installation structure for installing a solar cell module on a wall surface of a building using a support member, comprising: The support member has a support surface and a locking piece, the support surface has a substantially vertical extent; the locking piece has a locking portion that faces the support surface with a gap therebetween and extends upward, and a connecting portion that connects the locking portion to the support surface, The solar cell module has a main panel and a frame member, The frame member has a holding recess and an attachment portion, the holding recess holds a part of the main body panel and is in contact with the light receiving surface and the back surface of the main body panel, the mounting portion is provided on the rear surface side of the main body panel, has greater rigidity than the main body panel, and extends vertically by a length equal to or greater than half of one side of the main body panel; The mounting portion has a mounting side engaging portion, the attachment-side engaging portion is a notch that is provided at a lower end portion of the attachment portion in a vertical direction and has a depth extending upward; the support member supports the solar cell module so that the locking portion is inserted into the mounting-side engaging portion and the solar cell module can tilt at an angle of 10 degrees or more with respect to the support surface, The frame member has the holding recess and the mounting portion formed as a single member, the frame member has a first frame portion that protects a lower end surface of the main body panel and a second frame portion that protects a side end surface of the main body panel, The first frame portion and the second frame portion have an overlapping portion, the attachment-side engaging portion is a notched groove that extends across the first frame portion and the second frame portion, An installation structure for a solar cell module, wherein the mounting-side engaging portion has an internal space that is continuous with the outside in the extension direction.

6. A solar cell module installation structure in which at least two solar cell modules are installed on a wall surface of a building using support members, The support member has a support surface and a locking piece, the support surface has a substantially vertical extent; the locking piece has a locking portion that faces the support surface with a gap therebetween and extends upward, and a connecting portion that connects the locking portion to the support surface, The two solar cell modules each have a main panel and a frame member, The frame member has a holding recess and an attachment portion, the holding recess holds a part of the main body panel and is in contact with the light receiving surface and the back surface of the main body panel, the mounting portion is provided on the rear surface side of the main body panel, has greater rigidity than the main body panel, and extends vertically by a length equal to or greater than half of one side of the main body panel; The mounting portion has a mounting side engaging portion, the attachment-side engaging portion is a notch that is provided at a lower end portion of the attachment portion in a vertical direction and has a depth extending upward; The support member has the locking portion inserted across the mounting-side engaging portions of the two solar cell modules to support the two solar cell modules by receiving a vertical load from the two solar cell modules.

7. A solar cell module installation structure according to any one of claims 1 to 6, A house, wherein the installation structure is provided on the wall surface.

8. A solar cell module that is attached to a support member having a support surface and a locking piece and installed on a wall surface of a building, The support member has a support surface that extends substantially vertically, and the locking piece has a locking portion that faces the support surface with a gap therebetween and extends upward, and a connecting portion that connects the locking portion and the support surface, A body panel and a frame member are included. The frame member has a holding recess and an attachment portion, the holding recess holds a part of the main body panel and is in contact with the light receiving surface and the back surface of the main body panel, the mounting portion is provided on the rear surface side of the main body panel, has greater rigidity than the main body panel, and extends vertically by a length equal to or greater than half of one side of the main body panel; The mounting portion has a mounting side engaging portion, the attachment-side engaging portion is a notch that is provided at a lower end portion of the attachment portion in a vertical direction and has a depth extending upward; the mounting-side engaging portion includes, in a depth direction of the mounting-side engaging portion, an inclined surface inclined in a direction away from the main body panel and a parallel surface parallel to the support surface, the parallel surface faces the inclined surface, When the solar cell module is attached to the support member, the locking portion is inserted into the attachment-side engaging portion to engage with it.

Images