Roof member integrated solar cell module

Abstract

To easily attach and detach a panel part while firmly fixing it.SOLUTION: A roof material integrated solar battery module 10 has a tile body 11, a holding member, and a panel part 12. The tile body 11 has a hooking tool 14 opened to the first direction side. The holding member is fixed to the first direction side of the tile body 11. The holding member 13 has an insertion part 26. The panel part 12 has an engaged tool 21. The hooked tool 21 is hooked by being inserted into the hooking tool 14 in a direction opposite to the first direction. The panel part 12 is held by the holding member in a state of being inserted into the insertion part 26 with a gap on the first direction side.SELECTED DRAWING: Figure 11

Description

[Technical Field]

[0001] The present invention relates to a roofing material-integrated solar cell module. [Background technology]

[0002] There is a demand for a structure that allows solar cell panels to be detached from solar cell modules integrated with roofing materials for maintenance such as replacement. For example, a structure has been proposed in which a solar cell module is fixed by sandwiching a rail material fixed to the base surface and the solar cell module with a U-shaped mounting member (see Patent Document 1). Another structure has been proposed in which a roof tile-type module is fixed by engaging the eaves-side module frame 31 of the roof tile-type module placed on the ridge side with a ridge-side module frame fixed to a roof tile batten with screws or the like (see Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-100692 A [Patent Document 2] JP 2017-160715 A Summary of the Invention [Problem to be solved by the invention]

[0004] The solar cell module described in Patent Document 1 is fixed to the rail material by the elastic force of the fitting, so if the fitting is too tight, the workability of attachment and removal decreases. On the other hand, if the fitting is too loose, the solar cell module becomes easily detached. Furthermore, the tile-shaped module described in Patent Document 2 is installed by being held in place by a ridge-side module frame fixed to the tile battens and an eaves-side module frame that engages with the ridge-side module frame that fixes the tile-shaped module arranged on the eaves side. Therefore, in order to remove the central tile-shaped module, it is necessary to remove the surrounding tile-shaped modules, making it difficult to replace some of the tile-shaped modules.

[0005] An object of the present disclosure is to provide a roofing material-integrated solar cell module in which the panel portion is firmly fixed but can be easily attached and detached. [Means for solving the problem]

[0006] The roofing material-integrated solar cell module according to the first aspect comprises: A tile body having a hook that opens to a first direction side; a holding member fixed to the first direction side of the roof tile body and having an insertion portion; The panel unit includes a solar cell and a hooked device that is hooked by being inserted into the hooking device in the direction opposite to the first direction, and is held by the holding member while inserted into the insertion portion with a gap on the first direction side. [Effects of the Invention]

[0007] According to the present disclosure, the panel portion can be easily attached and detached while being firmly fixed. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an external perspective view of a roofing material-integrated solar cell module according to one embodiment. [Figure 2] FIG. 2 is an exploded perspective view showing the roofing material-integrated solar cell module of FIG. 1 disassembled into its constituent elements. [Figure 3] FIG. 2 is an external perspective view of the first number of roof tile bodies of FIG. 1. [Figure 4] 4 is a cross-sectional view showing a cross section of the roof tile body cut along a plane perpendicular to the line IV-IV in FIG. 3. [Figure 5] 4 is a plan view of the hooked device of FIG. 3 viewed in a third direction. FIG. [Figure 6] 2 is an external perspective view of the panel section of FIG. 1 as seen from a third direction side. FIG. [Figure 7] 7 is a perspective view of a hook and a hooked device showing a resistance portion provided on the hooked device of FIG. 6. FIG. [Figure 8]8 is a cross-sectional view showing a cross section of the holding member cut along a plane perpendicular to the line VIII-VIII in FIG. 2. [Figure 9] 9 is a cross-sectional view showing a state in which a panel section is inserted into the insertion section of FIG. 8. FIG. [Figure 10] 9 is a cross-sectional view showing a modified example of the holding member of FIG. 8. FIG. [Figure 11] 2 is a first cross-sectional view taken along a plane perpendicular to a second direction, illustrating the sizes of the components of the roofing material-integrated solar cell module of FIG. 1. FIG. [Figure 12] 1. FIG. 4 is a second cross-sectional view taken along a plane perpendicular to the second direction, for illustrating the sizes of the components of the roofing material-integrated solar cell module of FIG. [Figure 13] FIG. 2 is a first external perspective view for explaining a method of installing the roofing material-integrated solar cell module of FIG. [Figure 14] 1. FIG. 4 is a second external perspective view for explaining a method of installing the roofing material-integrated solar cell module of FIG. [Figure 15] FIG. 2 is a first external perspective view for explaining a method for removing the panel unit of FIG. 1. [Figure 16] 1. FIG. 4 is a second external perspective view for explaining a method for removing the panel unit of FIG. [Figure 17] 1. FIG. 4 is a third external perspective view for explaining a method for removing the panel unit of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] 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.

[0010] A roofing material-integrated solar cell module according to an embodiment of the present disclosure may be installed on the top surface of a structure such as a house. The top surface may be, for example, an inclined surface, a horizontal surface, etc. An inclined surface is a surface that is inclined relative to a horizontal surface. The top surface may be, for example, a main surface of a sheathing board. The main surface is the surface with the largest area in a cube. The sheathing board may be covered with a roofing material for waterproofing.

[0011] The multiple roofing-integrated solar cell modules may be arranged two-dimensionally on the top surface of the structure. A two-dimensional arrangement means that the centers of gravity of the multiple roofing-integrated solar cell modules are arranged two-dimensionally. Therefore, even if two adjacent roofing-integrated solar cell modules partially overlap each other in a direction perpendicular to the two-dimensional plane, this arrangement may be considered two-dimensional. The multiple roofing-integrated solar cell modules may be arranged side by side in the girder direction. Multiple rows formed by multiple roofing-integrated solar cell modules arranged side by side in the girder direction may be arranged side by side from the ridge side to the eave side. The multiple roofing-integrated solar cell modules may be arranged side by side or offset from each other in the direction from the ridge side to the eave side. Furthermore, the eave-side end of any roofing-integrated solar cell module may be arranged so that it overlaps the ridge-side end of an adjacent roofing-integrated solar cell module on the eave side.

[0012] As shown in FIGS. 1 and 2 , a roofing-material-integrated solar cell module 10 includes at least one roofing tile body 11, a panel portion 12, and a holding member 13. The roofing-material-integrated solar cell module 10 may include a first number of roofing tile bodies 11. The first number is any integer equal to or greater than two. The first number is not limited to a fixed number. For example, roofing-material-integrated solar cell modules 10 having different first numbers may be used depending on the length of the structure in the girder direction on which the roofing-material-integrated solar cell module 10 is installed. For example, a mixture of roofing-material-integrated solar cell modules 10 having first numbers of two or more different from the first number of any roofing-material-integrated solar cell module 10 may be used. For example, a mixture of roofing-material-integrated solar cell modules 10 having different numbers equal to or greater than two may be used. In the rest of this specification, a roofing-material-integrated solar cell module 10 including three roofing tile bodies 11 will be described as an example.

[0013] A first direction and a second direction that are orthogonal to each other are defined in the roofing material-integrated solar cell module 10. The roofing material-integrated solar cell module 10 may further define a third direction that is perpendicular to both the first direction and the second direction.

[0014] The first direction is a direction parallel to the direction from the eaves side to the ridge side of the structure when the roofing material-integrated solar cell module 10 is placed in a normal position on the top surface of the structure. The normal position is the correct position determined in the design. The direction from the eaves side to the ridge side may not only be a direction strictly parallel to the rafter direction, but may also include a direction inclined relative to the rafter direction. The second direction is a direction parallel to the longitudinal direction of the structure when the roofing material-integrated solar cell module 10 is placed in a normal position on the top surface of the structure. The third direction is a direction parallel to the direction facing vertically downward when the roofing material-integrated solar cell module 10 is placed in a normal position on the top surface of the structure. The vertically downward direction is a direction that includes the vertically downward direction as a vector component.

[0015] The roof tile body 11 may have an overall rectangular shape with two sides parallel to the first direction and two sides parallel to the second direction. As shown in FIG. 3 , the roof tile body 11 includes a hook 14. The roof tile body 11 may further include a support portion 15, a first portion 16, and a second portion 17. The roof tile body 11 may have a support surface ss. The support surface ss may be the surface of the support portion 15 on the side opposite the third direction. The support surface ss is a surface parallel to the first direction and the second direction. The first number of roof tile bodies 11 may be arranged side by side in the second direction in the roofing material-integrated solar cell module 10 so that their support surfaces ss are flush with each other. In other words, the first number of roof tile bodies 11 may be arranged side by side in the second direction so that their support surfaces ss are located in the same plane. The first number of roof tile bodies 11 may be arranged side by side in the roofing material-integrated solar cell module 10 so that they are in close contact with each other in the second direction.

[0016] A recess 18 recessed from the support surface ss may be formed in a portion of the support surface ss. In other words, the recess 18 is a recessed portion provided in the support surface ss. The recess 18 may be formed inside the support surface ss in the second direction. Formed inside means that the recess 18 is formed somewhere inside the support surface ss, while the support surface ss is at both ends in the second direction. The recess 18 may be formed at an intermediate position in the second direction. The recess 18 may be groove-shaped extending in the first direction.

[0017] The first portion 16 may be located on the first direction side relative to the support surface ss. As shown in FIG. 4, the first portion 16 may be raised from the support surface ss. As shown in FIG. 3, the first portion 16 may be ridge-shaped extending along the second direction. The second portion 17 may be located on the opposite side of the first direction relative to the support surface ss. As shown in FIG. 4, the second portion 17 may be raised from the support surface ss. As shown in FIG. 3, the second portion 17 may extend along the second direction.

[0018] As shown in Fig. 4, the entirety of the hook 14 may be located within the recess 18. The hook 14 may be provided on all of the roof tile bodies 11 arranged side by side in the second direction in the roofing material-integrated solar cell module 10, or on some of the roof tile bodies 11. The hook 14 may be located on the opposite side of the first direction from the first portion 16.

[0019] The hook 14 opens in a first direction. In other words, the hook 14 has a wall surface that defines a space in the first direction within the recess 18. The hook 14 may also have a wall surface that defines a space in a third direction within the recess 18. In other words, a gap may be provided between the hook 14 and the bottom surface of the recess 18.

[0020] 4, the hook 14 may include a flat third portion 19. The third portion 19 may be fixed to the support portion 15 so as to be parallel to the first direction and the second direction while having a gap from the bottom surface of the recessed portion 18, for example.

[0021] As shown in FIG. 5, the third portion 19 may have a notch co formed at its end on the first direction side when viewed in the third direction. The notch co may be a rectangle with a curved tip parallel to the first direction. The notch co may be formed at a central position in the second direction of the third portion 19. The width of the notch co in the second direction may be the first width. The notch co may be formed so that its width increases near the end and increases toward the end.

[0022] In a configuration in which the roofing material-integrated solar cell module 10 includes one roof tile body 11, the panel unit 12 may be positioned so as to cover the support surface ss of one roof tile body 11. Alternatively, as shown in FIG. 1 , the panel unit 12 may be positioned so as to straddle at least two of a first number of roof tile bodies 11 positioned side by side in the second direction in the roofing material-integrated solar cell module 10. Furthermore, the panel unit 12 may be positioned so as to straddle all of the first number of roof tile bodies 11 positioned side by side in the second direction. The panel unit 12 may be positioned between the first portion 16 and the second portion 17 of the roof tile body 11 in the first direction.

[0023] As shown in FIG. 6, the panel section 12 may be configured to include a main body section 20, a hooking member 21, and a terminal box 22.

[0024] The main body 20 of the roofing material-integrated solar cell module 10 is a flat plate parallel to the first direction and the second direction. Solar cells are provided in the main body 20. The main body 20 may mainly receive light and generate electricity on the surface opposite to the third direction. The panel 12 may be supported by the roof tile body 11 in surface contact with the support surface ss of the main body 20.

[0025] The length of the main body 20 in the second direction may be less than or equal to the total length of the roofing material-integrated solar cell module 10 in the first number of roofing tile bodies 11 arranged side by side in the second direction. Alternatively, the length of the main body 20 in the second direction may be greater than or equal to the total length minus a margin. The margin is a length provided to the roofing tile body 11 to reduce damage caused by a collision of the main body 20 during construction to install the roofing material-integrated solar cell module 10 on the upper surface. The margin is, for example, 10 mm.

[0026] The hooking device 21 may be provided on the surface on the third direction side of the main body 20. The hooking device 21 may be provided at the same position in the second direction as the hooking device 14 of each roof tile body 11 in the roofing material-integrated solar cell module 10.

[0027] The hooking device 21 is inserted into the hooking device 14 in the direction opposite to the first direction, thereby engaging with each other. Specifically, the hooking device 21 may be hooked onto the hooking device 14 in the roofing material-integrated solar cell module 10 from the first direction side in a direction along the first direction. In other words, the hooking device 21 may be hooked onto the hooking device 14 so as to suppress displacement of the panel portion 12 relative to the roof tile body 11 in the direction opposite to the first direction.

[0028] Furthermore, the hooking device 21 may be hooked onto the hooking device 14 in a direction along the third direction from the third direction side in the roofing material-integrated solar cell module 10. In other words, the hooking device 21 may be hooked onto the hooking device 14 so as to suppress displacement of the panel portion 12 in the direction opposite to the third direction relative to the roof tile body 11.

[0029] The hooked device 21 may be fixed to the main body 20, for example. The hooked device 21 may have a claw-shaped portion that protrudes at least in the direction opposite to the first direction. Specifically, the hooked device 21 may be composed of a fourth portion 23 and a fifth portion 24. The fourth portion 23 is a cylindrical portion that stands perpendicular to the main body 20. The thickness of the fourth portion 23, i.e., the diameter of the cylinder, is less than the first width. The fifth portion 24 may be provided at the tip of the fourth portion 23. The fifth portion 24 may be disk-shaped with a diameter greater than the first width. The hooked device 21 composed of the fourth portion 23 and the fifth portion 24 may be hooked to the hooking device 14 by inserting the fourth portion 23 into a notch in the hooking device 14. In the engaged state, the fifth portion 24 may abut against the third portion 19.

[0030] The terminal box 22 may be provided on the surface of the main body 20 on the third direction side. The terminal box 22 may be provided at the same position in the second direction as the recessed portion 18 of the roof tile body 11 in the roofing material-integrated solar cell module 10. In a configuration in which the roofing material-integrated solar cell module 10 has a plurality of roof tile bodies 11, the terminal box 22 may be provided at the same position in the second direction as the recessed portion 18 of any one of the roof tile bodies 11.

[0031] The terminal box 22 may be housed in the recessed portion 18 of the roofing material-integrated solar cell module 10. In other words, the terminal box 22 may be located in the recessed portion 18 of the roofing material-integrated solar cell module 10 without interfering with the surface contact of the support surface ss with the main body 20, specifically, without interfering with the bottom surface of the recessed portion 18. Since the terminal box 22 is housed in the recessed portion 18, the height of the terminal box 22 from the surface of the main body 20 may be shorter than the depth of the recessed portion 18 of the roof tile body 11. The terminal box 22 may output electric power generated by light received by the main body 20 to the outside.

[0032] At least one of the hook 14 and the hooked device 21 may have a resistance portion that resists the hooked device 21 from being separated from the hook 14. For example, as shown in Fig. 7, a resistance portion 25 with a curved tip that protrudes may be formed on the side opposite to the third direction in the fifth part 24 of the hooked device 21. A recess 30 into which the resistance portion 25 fits may be formed on the surface of the hook 14 on the third direction side.

[0033] In the roofing material-integrated solar cell module 10, an air layer may be partially provided between the roof tile body 11 and the panel portion 12. The air layer may be a layer formed by air inside the recessed portion 18, for example.

[0034] As shown in Fig. 1, the holding member 13 is fixed to the first direction side of the roof tile body 11. The holding member 13 may be fixed to the first portion 16. The holding member 13 may hold the end portion of the panel portion 12 on the first direction side. The holding member 13 may be fixed to the first portion 16 while holding the panel portion 12, and the panel portion 12 may be fixed to the roof tile body 11 by the engagement of the hook 14 and the hooked portion 21.

[0035] As shown in FIG. 8 , the holding member 13 has an insertion portion 26. The holding member 13 may further have a fixing portion 27. The insertion portion 26 has, for example, a U-shaped cross section. The panel unit 12 can be inserted into the U-shaped portion of the insertion portion 26. The holding member 13 holds the panel unit 12 inserted into the insertion portion 26. The insertion portion 26 may be capable of inserting and removing the panel unit 12 in the first direction in the roofing material-integrated solar cell module 10.

[0036] 9, in roofing material-integrated solar cell module 10, panel portion 12 and insertion portion 26 held by holding member 13 have a gap on the first direction side inside insertion portion 26. More specifically, in roofing material-integrated solar cell module 10, the end face on the first direction side of panel portion 12 and the inner surface inside insertion portion 26 on the opposite side to the first direction are separated from each other.

[0037] 10, the holding member 13 may have an elastic member 28 in the insertion portion 26. The elastic member 28 may bias the panel portion 12 in a direction opposite to the first direction. The elastic member 28 may be, for example, a spring or rubber.

[0038] As shown in FIG. 8 , the fixing portion 27 may be provided on the opposite side of the insertion opening of the insertion portion 26. The fixing portion 27 may be flat. As shown in FIG. 11 , the holding member 13 may be fixed to the first portion 16 at the fixing portion 27. Any fixing mechanism may be used to fix the holding member 13 to the first portion 16. For example, as described below, nails may be inserted through holes formed in the holding member 13 and the first portion 16 and driven into the upper surface of the structure to fix the roofing material-integrated solar cell module 10 to the upper surface and fix the holding member 13 to the first portion 16. Alternatively, the holding member 13 may be fixed to the first portion 16 by attaching an adhesive sheet between the holding member 13 and the first portion 16. The holding member 13 may be fixed to the roof tile body 11 so that the inner surface of the insertion portion 26 on the third direction side is flush with the support surface ss. In other words, the holding member 13 may be disposed so that the inner surface of the insertion portion 26 on the third direction side and the support surface ss are positioned in the same plane.

[0039] As shown in FIG. 11 , the depth of the insertion portion 26 in the first direction may be defined as a first length. In the roofing material-integrated solar cell module 10, the distance between the bottom surface of the insertion portion 26 and the end surface of the panel unit 12 in the first direction may be defined as a second length. The bottom surface of the insertion portion 26 is the surface located at the innermost side of the insertion portion 26 in the first direction. In the roofing material-integrated solar cell module 10, the length in the first direction of the overlapping portion of the hook 14 and the hooked device 21 when engaged may be defined as a third length. In other words, the third length is the distance in the first direction over which the hook 14 and the hooked device 21 are engaged. The engagement distance is the displacement range of the hooked device 21 along the first direction that prevents the panel unit 12 from coming off when the panel unit 12 is pulled up in the direction opposite to the third direction when at least a portion of the hooked device 21 is engaged with the hook 14. The first length, second length, and third length determined as described above may satisfy the relationship: first length > second length > third length.

[0040] As shown in FIG. 12 , the first length may be defined as S. The distance in the first direction between the end of the panel portion 12 on the first direction side and the end of the hooked device 21 on the side opposite to the first direction may be defined as L. The height of the hooked device 21 from the surface of the panel portion 12 on the third direction side may be defined as m. The difference between the thickness of the panel portion 12 and the thickness of the gap in the insertion portion 26 may be defined as δ. The numerical values ​​defined as above may satisfy the relationship δ≧(m×S) / L.

[0041] As shown in Fig. 1, the holding member 13 may be positioned so as to straddle all of the first number of roofing tile bodies 11 positioned side by side in the second direction in the roofing material-integrated solar cell module 10. Alternatively, the holding member 13 may be positioned so as not to straddle some of the first number of roofing tile bodies 11 positioned side by side in the second direction. The holding member 13 may be divided in the second direction in the roofing material-integrated solar cell module 10. In other words, in a single roofing material-integrated solar cell module 10, multiple holding members 13 may hold one panel unit 12 at different positions in the second direction.

[0042] The length of the holding member 13 in the second direction may be equal to or greater than the length of the panel unit 12 in the second direction. Alternatively, the length of the holding member 13 in the second direction may be equal to or less than the length in question, i.e., the length of the panel unit 12 in the second direction plus the protection length. The protection length is a length that provides an extra margin to the holding member 13 to reduce damage to the main body unit 20 due to the main body unit 20 colliding with the surrounding area during construction to install the roofing material-integrated solar cell module 10 on the upper surface. The protection length is, for example, 5 mm.

[0043] 1 and 3, the holding member 13 and the first portion 16 have holes 29 that communicate with each other in the roofing material-integrated solar cell module 10. As described above, the roofing material-integrated solar cell module 10 may be fixed to the upper surface of a structure by driving nails into the holes 29 in a state where the holes 29 of the holding member 13 and the first portion 16 are aligned.

[0044] A method for installing the roofing material-integrated solar cell module 10 configured as described above on the top surface of a structure will be described below. First, the roofing tile body 11 is placed at a predetermined position on the top surface of the structure with the support surface ss facing vertically upward. Next, as shown in FIG. 13 , the panel unit 12, with its end inserted into the insertion portion 26, may be placed on the support surface ss side of the roofing tile body 11. When placing the panel unit 12, the panel unit 12 and the roofing tile body 11 may be aligned in the second direction. The panel unit 12 may be placed on the roofing tile body 11 with the panel unit 12 displaced in the first direction so that the hooking device 14 and the hooked device 21 do not interfere with each other.

[0045] After being placed on the support surface ss, the panel unit 12 may be displaced in the direction opposite to the first direction until the hooking device 14 hooks onto the hook-receiving device 21, as shown in Fig. 14. After the displacement, the fixing portion 27 of the holding member 13 may be fixed to the first portion 16 of the roof tile body 11. With the hooking device 14 engaged with the hook-receiving device 21, the holding member 13 is fixed to the roof tile body 11, and the roof material-integrated solar cell module 10 is installed on the top surface of the structure.

[0046] Next, a method for removing the panel unit 12 from the roofing material-integrated solar cell module 10 will be described below. First, as shown in FIG. 15, the panel unit 12 is displaced into the insertion portion 26 in a first direction, thereby releasing the engagement between the hook 14 and the hooked member 21. Next, as shown in FIG. 16, while the end of the panel unit 12 on the first direction side remains inserted into the insertion portion 26, the end of the panel unit 12 on the opposite side to the first direction is pulled up in the opposite direction to the third direction. Next, as shown in FIG. 17, while the panel unit 12 is pulled up, the end of the panel unit 12 on the first direction side is pulled out of the insertion portion 26.

[0047] The roofing-material-integrated solar cell module 10 configured as described above includes a roofing tile body 11 having a hook 14 opening toward the first direction; a holding member 13 fixed to the first direction side of the roofing tile body 11 and having an insertion portion 26; and a panel unit 12 having a solar cell and a hooked member 21 that is inserted into the hook 14 in the direction opposite the first direction and is held by the holding member 13 while inserted into the insertion portion 26 with a gap on the first direction side. This configuration allows the roofing-material-integrated solar cell module 10 to easily replace the panel unit 12 while leaving the roofing tile body 11 and holding member 13 that are not to be replaced fixed to the top surface of the structure. Furthermore, this configuration prevents the roofing-material-integrated solar cell module 10 from displacing the panel unit 12 in the direction opposite the first direction due to its own weight or the like, due to the engagement of the hook 14 and the hooked member 21. Therefore, the roofing-material-integrated solar cell module 10 can prevent the panel unit 12 from falling off. In this way, the roofing material-integrated solar cell module 10 can be easily attached and detached without using tools, for example, while the panel portion 12 is firmly fixed.

[0048] Furthermore, in the roofing-material-integrated solar cell module 10, where S is the first length, L is the distance in the first direction between the end of the panel unit 12 on the first direction side and the end of the hooking fixture 21 on the opposite side from the first direction, m is the height of the hooking fixture 21 from the surface of the panel unit 12 on the third direction side, and δ is the difference between the thickness of the panel unit 12 and the thickness of the gap in the insertion portion 26, δ≧(m×S) / L. By satisfying this configuration, the roofing-material-integrated solar cell module 10 can be removed without bending the panel unit 12 when the panel unit 12 is pulled up in the direction opposite the third direction, and without causing interference between the hooking fixture 14 and the hooking fixture 21. Therefore, the roofing-material-integrated solar cell module 10 improves the workability of removing the panel unit 12. These effects are described below. The first angle at which the main body 20 is tilted to the maximum within the insertion portion 26 around a line parallel to the second direction is defined as θ1. The tangent tanθ1 of such a first angle θ1 is δ / S. Because the first angle θ1 is small, θ1 ≒ tanθ1 = δ / S. Furthermore, in a configuration in which the end of the hook 14 opposite the third direction reaches the support surface ss, the second angle θ2 is defined as the minimum inclination of the main body 20 within the insertion section 26 around a line parallel to the second direction so as not to cause interference between the hook 14 and the hooked device 21 in the third direction. The tangent tanθ2 of such a second angle θ2 is m / L. Because the second angle θ2 is small, θ2 ≒ tanθ2 = m / L. By satisfying θ1 ≥ θ2, the hook 14 and the hooked device 21 can be pulled out without bending the panel section 12 or causing interference between them. Therefore, if δ ≥ (m × S) / L, θ1 ≥ θ2 is satisfied.

[0049] Furthermore, in the roofing material-integrated solar cell module 10, at least one of the hook 14 and the hooked device 21 has a resistance portion 25 that resists the hooked device 21 from coming off the hook 14. With this configuration, the roofing material-integrated solar cell module 10 can reduce the possibility of the panel portion 12 coming off the roof tile body 11 even when an earthquake load or the like is applied.

[0050] Furthermore, in the roofing material-integrated solar cell module 10, the holding member 13 has an elastic member 28 in the insertion portion 26 that urges the panel portion 12 in the direction opposite to the first direction. With this configuration, the roofing material-integrated solar cell module 10 can resist release of the engagement between the hook 14 and the hooked portion 21. Therefore, the roofing material-integrated solar cell module 10 can reduce the possibility of the roof tile body 11 of the panel portion 12 coming off even when an earthquake load or the like is applied.

[0051] Furthermore, with the above-described configuration, the roofing-material-integrated solar cell module 10 can position the light-receiving surface of the panel unit 12 between adjacent roofing tile bodies 11 in the second direction, thereby increasing the ratio of the solar cell area to the light-receiving surface area. Therefore, the roofing-material-integrated solar cell module 10 can generate more power than a configuration in which a panel unit 12 is placed for each roofing tile body 11. Furthermore, with the above-described configuration, the roofing-material-integrated solar cell module 10 can reduce the total length of wiring electrically connecting the panel units 12 between adjacent roofing tile bodies 11 in the second direction, compared to a configuration in which a panel unit 12 having the same length as each roofing tile body 11 in the second direction is installed for every first number of roofing tile bodies 11 and the panel units 12 are connected by wiring, thereby reducing loss due to electrical resistance. Furthermore, since the roofing-material-integrated solar cell module 10 integrates the panel units 12 in a manner that supports them in surface contact with the support surface ss of the roofing tile body 11, the support surface ss can support a positive pressure load applied to the panel unit 12. Therefore, the strength of the roofing material-integrated solar cell module 10 can be improved. Furthermore, in the roofing material-integrated solar cell module 10, the panel portion 12 having the flat main body portion 19 is supported on the support surface ss of the roof tile body 11, which can prevent the panel portion 12 from appearing to float above the roof tile body 11. Therefore, the roofing material-integrated solar cell module 10 can improve the sense of unity between the roof tile body 11 and the panel portion 12. As a result, the roofing material-integrated solar cell module 10 can improve its aesthetic appearance.

[0052] Furthermore, in roofing material-integrated solar cell module 10, the length in the second direction of main body 20 is equal to or less than the total length of the first number of roof tile bodies 11 arranged side by side in the second direction, and is equal to or greater than the total length minus an allowance. With this configuration, roofing material-integrated solar cell module 10 can further expand the light-receiving surface of panel unit 12 compared to a configuration in which the light-receiving surface of panel unit 12 is simply disposed between roof tile bodies 11 adjacent in the second direction. Therefore, roofing material-integrated solar cell module 10 can further increase the amount of power generated and reduce the possibility of damage to panel unit 12 due to a collision with main body 19 during installation.

[0053] Furthermore, in the roofing material-integrated solar cell module 10, the roof tile body 11 has a first portion 16 located on a first direction side of the support surface ss and protruding from the support surface ss, and a second portion 17 located on the opposite side of the support surface ss from the first direction and protruding from the support surface ss, and the panel portion 12 is located between the first portion and the second portion. With this configuration, the roofing material-integrated solar cell module 10 can be visually integrated.

[0054] Furthermore, in roofing material-integrated solar cell module 10, holding member 13 is positioned so as to straddle all of the first number of roofing tiles 11. With this configuration, roofing material-integrated solar cell module 10 can be prevented from breaking apart and scattering partially even if a strong localized force is applied when it is subjected to negative wind pressure while installed on the top surface of a structure.

[0055] Furthermore, in roofing material-integrated solar cell module 10, the length in the second direction of holding member 13 is equal to or greater than the length in the second direction of panel portion 12 and equal to or less than said length plus the protection length. With this configuration, roofing material-integrated solar cell module 10 can more firmly fix panel portion 12 to roof tile body 11, and can reduce damage to main body portion 19 caused by collision of main body portion 19 with surrounding objects during installation.

[0056] Furthermore, in roofing material-integrated solar cell module 10, holding member 13 and first portion 16 have hole portions 29 that communicate with each other. With this configuration, roofing material-integrated solar cell module 10 can be fixed to a structure and holding member 13 to first portion 16 by driving nails into hole portions 29 in a state where hole portions 29 in holding member 13 and first portion 16 are aligned.

[0057] Furthermore, in the roofing material-integrated solar cell module 10, the recessed portion 18 is formed at a middle position in the second direction of the support surface ss. With this configuration, the roofing material-integrated solar cell module 10 can simultaneously maximize the width in the first direction of the support surface ss at both ends in the second direction. Therefore, the roofing material-integrated solar cell module 10 can have improved strength at both ends in the second direction.

[0058] Furthermore, in the roofing material-integrated solar cell module 10, the panel section 12 has a terminal box 22 housed in the recess 18. With this configuration, when the roofing material-integrated solar cell module 10 is installed on a structure, if the terminal box 22 catches fire, the roof tile body 11, which is generally made of a non-combustible material, can prevent the falling of fire sources. Therefore, the roofing material-integrated solar cell module 10 can prevent the fire from spreading to the roof sheathing boards and the like located below the roofing material-integrated solar cell module 10.

[0059] Furthermore, in the roofing material-integrated solar cell module 10, an air layer is partially provided between the panel portion 12 and the roof tile body 11. With this configuration, the roofing material-integrated solar cell module 10 can improve its thermal insulation properties.

[0060] In one embodiment, (1) the roofing material-integrated solar cell module is A tile body having a hook that opens to a first direction side; a holding member fixed to the first direction side of the roof tile body and having an insertion portion; The panel unit includes a solar cell and a hooked device that is hooked by being inserted into the hooking device in the direction opposite to the first direction, and is held by the holding member while inserted into the insertion portion with a gap on the first direction side.

[0061] (2) In the roofing material integrated solar cell module described in (1) above, The depth of the insertion portion in the first direction is a first length, the distance between the bottom surface of the insertion portion and the end of the panel portion on the first direction side is a second length, and the third length in the first direction of the portion where the hooking device and the hooked device overlap when hooked satisfies the relationship: first length > second length > third length.

[0062] (3) In the roofing material integrated solar cell module described in (2) above, If the first length is S, the distance in the first direction between the end of the panel portion on the first direction side and the end of the hooked device on the side opposite to the first direction is L, the height of the hooked device from the surface of the panel portion on the third direction side is m, and the difference between the thickness of the panel portion and the thickness of the gap in the insertion portion is δ, then δ≧(m×S) / L.

[0063] (4) Any of the roofing material-integrated solar cell modules described above in (1) to (3) is At least one of the hook and the hooked device has a resistance portion that resists the disconnection of the hooked device from the hook.

[0064] (5) Any of the roofing material-integrated solar cell modules described above in (1) to (4) is The holding member has an elastic member in the insertion portion that urges the panel portion in a direction opposite to the first direction.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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, the first part can exchange the identifiers "first" and "second" with the second part. The exchange of identifiers is performed simultaneously. The configurations remain distinguished even after the exchange of identifiers. 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]

[0069] 10. Roofing material integrated solar cell module 11 Tile body 12 Panel section 13 Retaining member 14 Hanging fixture 15 Support part 16 First Part 17 Second Part 18 Depression 19 Third Part 20 Main body 21 Hanging tool 22 Terminal box 23 Fourth Part 24 Fifth Part 25 Resistance section 26 Insertion part 27 Fixed part 28 Elastic member 29 Hole 30 Hollow ss support surface

Claims

1. a tile body having a hook that opens toward a first direction; a holding member fixed to the first direction side of the roof tile body and having an insertion portion; a panel portion having a solar cell and a hooked tool that is hooked by being inserted into the hooking tool in a direction opposite to the first direction, and held by the holding member in a state where the panel portion is inserted into the insertion portion with a gap on the first direction side; Solar cell module integrated into roofing material.

2. The roofing material-integrated solar cell module according to claim 1, The depth of the insertion portion in the first direction is defined as a first length, the distance between the bottom surface of the insertion portion and the end of the panel portion on the first direction side is defined as a second length, and a third length in the first direction of a portion where the hooking device and the hooked device overlap in an engaged state satisfies the relationship of first length > second length > third length. Roofing material integrated solar cell module

3. The roofing material-integrated solar cell module according to claim 2, S is the first length, L is the distance in the first direction between the end of the panel portion on the first direction side and the end of the hooked device on the side opposite to the first direction, m is the height of the hooked device from the surface on the third direction side of the panel portion, and δ is the difference between the thickness of the panel portion and the thickness of the gap of the insertion portion, then δ≧(m×S) / L. Solar cell module integrated into roofing material.

4. The roofing material-integrated solar cell module according to any one of claims 1 to 3, At least one of the hooking device and the hooked device has a resistance portion that resists the disconnection of the hooked device from the hooking device. Solar cell module integrated into roofing material.

5. The roofing material-integrated solar cell module according to any one of claims 1 to 3, The holding member has an elastic member in the insertion portion that urges the panel portion in a direction opposite to the first direction. Solar cell module integrated into roofing material.

Images