JP2019134552A - Solar cell module, solar cell array, and frame member unit - Google Patents

Abstract

To improve productivity of a solar cell array and a solar cell module.SOLUTION: A solar cell module comprises a solar cell panel and a first and a second frame members. The first frame member is located along a first side face of the solar cell panel. The second frame member is located along a second side face opposite to the first side face of the solar cell panel. The first frame member has a fitted portion, a wall-like portion, a groove-like portion, and a convex portion. The fitted portion is positioned in a state in which the solar cell panel is fitted. The wall-like portion is positioned in a state to extend from the fitted portion along a thickness direction of the solar cell panel. The groove-like portion is located on a first direction side of the wall-like portion, opens on the first direction side, and is positioned along a longitudinal direction of a first side face. The convex portion is positioned so as to protrude from the groove-like portion on a fitted portion side. A width of an inner space of the first groove-like portion and a second groove-like portion in a third direction is larger than a thickness of the solar cell panel.SELECTED DRAWING: Figure 9

Description

  The present disclosure relates to a solar cell module, a solar cell array, and a frame member unit for a solar cell module.

  In recent years, solar power generation with a low environmental load has attracted attention as environmental protection has increased. In order to expand the spread of this solar power generation, for example, a solar cell array in which a plurality of solar cell modules are arranged on an object such as a roof attracts attention.

  In such a solar cell array, in a state in which the fitting members are fitted to each other between the plurality of solar cell modules each having a fitting member such as a frame attached along the outer periphery. What is connected has been proposed (see, for example, the description of Patent Document 1 below).

JP 2003-56131 A

  The solar cell array, the solar cell module used for the solar cell array, and the frame member unit for the solar cell module have room for improvement in terms of improving productivity.

  A solar cell module, a solar cell array, and a frame member unit for a solar cell module are disclosed.

  One aspect of the solar cell module includes a plate-like solar cell panel, a first frame member, and a second frame member. The plate-shaped solar cell panel has a first surface, a second surface positioned in a direction opposite to the first surface, and a connection between the first surface and the second surface. A side surface located in a state of being. The first frame member is located along a first side surface that exists on a side in a first direction along the first surface of the side surfaces. The second frame member is located along a second side surface that is present on the side of the second direction opposite to the first direction among the side surfaces. The first frame member includes a groove-shaped first fitted portion, a first wall-shaped portion, a first groove-shaped portion, and a first convex-shaped portion. The groove-shaped first fitted portion is located in a state in which a first outer peripheral portion along the first side surface of the solar cell panel is fitted. The first wall-shaped portion is located in a state extending from the first fitted portion in a third direction from the first surface toward the second surface along the thickness direction of the solar cell panel. Yes. The first groove-like portion is located on the first direction side of the first wall-like portion, is open on the first direction side, and is located along the first longitudinal direction of the first side surface. doing. The first convex portion is located in a state of projecting in the first direction from the first wall portion on the fourth direction side opposite to the third direction of the first groove portion. One or more first protrusions. The second frame member has a groove-shaped second fitted portion, a second wall-shaped portion, a second groove-shaped portion, and a second convex portion. The groove-shaped second fitted portion is positioned in a state in which a second outer peripheral portion along the second side surface of the solar cell panel is fitted. The second wall-shaped portion is located in a state extending from the second fitted portion in the third direction. The second groove-like portion is located on the second direction side of the second wall-like portion, is open on the second direction side, and is located along the second longitudinal direction of the second side surface. doing. The second convex part is one or more second parts located in a state of projecting in the second direction from the second wall part on the fourth direction side of the second groove part. Including protrusions. The width in the third direction of the internal space of the first groove-shaped part and the second groove-shaped part is larger than the thickness of the solar cell panel.

  One aspect of the solar cell array includes a plurality of the solar cell modules according to the aspect and a support portion. The said support part is located on the installation object part, and is located in the state which is supporting the said several solar cell module. The plurality of solar cell modules include a first solar cell module and a second solar cell module that are positioned adjacent to each other in the first direction. The first convex portion of the first frame member in the first solar cell module is positioned in a state of being fitted to the second groove portion of the second frame member in the second solar cell module. ing.

  In one aspect of the frame member unit, the first surface, the second surface positioned in a direction opposite to the first surface, and the first surface and the second surface are connected. It is for solar cell modules for arrange | positioning along the said side surface of the plate-shaped solar cell panel which has the side surface located in a state. One aspect of the frame member unit includes a first frame member and a second frame member. The first frame member is disposed along a first side surface of the side surfaces. The second frame member is arranged along a second side surface that is located on the side opposite to the first side surface among the side surfaces. The first frame member includes a groove-shaped first fitted portion, a first wall-shaped portion, a first groove-shaped portion, and a first convex-shaped portion. The groove-shaped first fitted portion is capable of fitting a first outer peripheral portion along the first side surface of the solar cell panel. The first wall-shaped portion extends from the first fitted portion in a first width direction orthogonal to both the first longitudinal direction and the first depth direction in the first fitted portion. positioned. The first groove-like portion is located on the first depth direction side of the first wall-like portion, is open on the first depth direction side, and is located along the first longitudinal direction. Yes. The first convex portion protrudes in the first depth direction from the first wall-shaped portion on the second width direction side opposite to the first width direction of the first groove-shaped portion. One or more first protrusions located are included. The second frame member has a groove-shaped second fitted portion, a second wall-shaped portion, a second groove-shaped portion, and a second convex portion. The groove-shaped second fitted portion is capable of fitting a second outer peripheral portion along the second side surface of the solar cell panel. The second wall-shaped portion extends from the second fitted portion in a third width direction perpendicular to both the second longitudinal direction and the second depth direction in the second fitted portion. positioned. The second groove-shaped portion is open on the second depth direction side of the second wall-shaped portion on the second depth direction side and is positioned along the second longitudinal direction. The second convex portion protrudes in the second depth direction from the second wall-shaped portion on the fourth width direction side opposite to the third width direction of the second groove-shaped portion. One or more second protrusions located are included. In the first width direction, the width of the internal space of the first groove-shaped portion is larger than the width of the internal space of the first fitted portion. In the third width direction, the width of the internal space of the second groove-shaped portion is larger than the width of the internal space of the second fitted portion.

  For example, the productivity of the solar cell array, the solar cell module used for the solar cell array, and the frame member unit for the solar cell module can be improved.

FIG. 1 is a plan view showing the appearance of an example of a solar cell device according to the first to sixth embodiments. Fig.2 (a) is a front view which shows the external appearance of an example of the solar cell apparatus which concerns on 6th Embodiment from 1st Embodiment. FIG.2 (b) is a rear view which shows the external appearance of an example of the solar cell apparatus which concerns on 1st Embodiment-6th Embodiment. Fig.3 (a) is a right view which shows the external appearance of an example of the solar cell apparatus which concerns on 1st Embodiment-6th Embodiment. FIG. 3B is a left side view illustrating an appearance of an example of the solar cell device according to the first to sixth embodiments. FIG. 4 is a bottom view showing an appearance of an example of the solar cell device according to the first to sixth embodiments. FIG. 5 is a bottom view schematically showing an external appearance of an example of the solar cell device according to the first to sixth embodiments. FIG. 5 is a diagram in which the lines indicating the unevenness of the roof material in FIG. 4 are omitted. FIG. 6 is a plan view showing an appearance on the first surface side of an example of the solar cell module in the first solar cell array. FIG. 7 is an end view showing an example of a cut surface of the solar cell module along the line VII-VII in FIG. 6. FIG. 8 is an enlarged end view showing an enlarged cross section of a part of the solar cell module in section VIII of FIG. FIG. 9A is an end view showing a partial cross section of the first solar cell module and the second solar cell module before connection in the first solar cell array. FIG. 9B is an end view showing a partial cross section of the first solar cell module and the second solar cell module after connection in the first solar cell array. FIG. 10 is a cross-sectional view showing a cross section of an example of a part of the first roof portion and the first solar cell array. FIG. 11 is an end view showing an example of a cut surface of the support portion and the first roof portion along the line XI-XI in FIG. 10. Fig.12 (a) is a side view which shows an example of a part of solar cell module in the 1st solar cell array which concerns on 2nd Embodiment. FIG.12 (b) is sectional drawing which shows an example of the cut surface of the solar cell module along the XIIb-XIIb line | wire of Fig.12 (a). FIG. 13 is a cross-sectional view showing an example of a part of the first solar cell array according to the second embodiment. Specifically, FIG. 13 is a cross-sectional view showing an example of a cut surface of a part of the first solar cell array along the line XIII-XIII in FIG. FIG. 14 is a cross-sectional view showing an example of a part of the cut surface of the first solar cell array along the XIV-XIV line in FIG. 13. FIG. 15A is an end view showing a partial cross section of the first solar cell module and the second solar cell module before connection in the first solar cell array according to the third embodiment. FIG. 15B is an end view showing a partial cross section of the first solar cell module and the second solar cell module after connection in the first solar cell array according to the third embodiment. FIG. 16A is an end view showing a partial cross section of the first solar cell module and the second solar cell module before connection in the first solar cell array according to a modification of the third embodiment. FIG. 16B is an end view showing a partial cross section of the first solar cell module and the second solar cell module after connection in the first solar cell array according to a modification of the third embodiment. FIG. 17A is an end view showing a partial cross section of the first solar cell module and the second solar cell module before connection in the first solar cell array according to the fourth embodiment. FIG. 17B is an end view showing a partial cross section of the first solar cell module and the second solar cell module after connection in the first solar cell array according to the fourth embodiment. FIG. 18A is an end view showing a partial cross section of the first solar cell module and the second solar cell module before connection in the first solar cell array according to a modification of the fourth embodiment. FIG. 18B is an end view showing a partial cross section of the first solar cell module and the second solar cell module after connection in the first solar cell array according to a modification of the fourth embodiment. FIG. 19A is an end view showing a partial cross section of the first solar cell module and the second solar cell module before connection in the first solar cell array according to the fifth embodiment. FIG. 19B is an end view showing a partial cross section of the first solar cell module and the second solar cell module after connection in the first solar cell array according to the fifth embodiment. FIG. 20A is an end view showing a partial cross section of the first solar cell module and the second solar cell module before connection in the first solar cell array according to the sixth embodiment. FIG. 20B is an end view showing a partial cross section of the first solar cell module and the second solar cell module in the middle of connection in the first solar cell array according to the sixth embodiment. FIG. 20C is an end view showing a partial cross section of the first solar cell module and the second solar cell module after connection in the first solar cell array according to the sixth embodiment. FIG. 21A is an end view showing a partial cross section of the first solar cell module and the second solar cell module before connection in the first solar cell array according to a modification of the sixth embodiment. FIG. 21B is an end view showing a partial cross section of the first solar cell module and the second solar cell module in the middle of connection in the first solar cell array according to a modification of the sixth embodiment. FIG. 21C is an end view showing a partial cross section of the first solar cell module and the second solar cell module after connection in the first solar cell array according to a modification of the sixth embodiment.

  A solar cell array in which a plurality of solar cell modules are arranged on an object such as a roof is known. In this solar cell array, each solar cell module may have a configuration in which a metal frame using aluminum or the like is attached to the outer periphery. For example, a configuration in which a plurality of solar cell modules are connected in a state where the frames are fitted to each other may be employed.

  In order to realize such a configuration, for example, in each solar cell module, if the eave-side frame and the ridge-side frame have different configurations so that they can be fitted to each other, Inventory management of different types of frames can be complicated. Further, for example, in order to manufacture a frame having a different configuration, a plurality of molds are required, and the productivity of the frame may be reduced. Thereby, the productivity of the solar cell array, the solar cell module used for the solar cell array, and the frame member unit for the solar cell module may be lowered.

  Therefore, the inventors of the present application have created a technique capable of improving the productivity of a solar cell array, a solar cell module used for the solar cell array, and a frame member unit for the solar cell module.

  Hereinafter, various embodiments will be described with reference to the drawings. In the drawings, parts having similar configurations and functions are denoted by the same reference numerals, and redundant description is omitted in the following description. The drawings are shown schematically. 1 to 5, a right-handed XYZ (capitalized) coordinate system is attached. In this XYZ coordinate system, the direction in which the eaves of the solar cell device 100 extend is the + X direction, the direction orthogonal to the + X direction in the horizontal direction along the ground as the reference plane G0 is the + Y direction, and + X The vertical direction orthogonal to both the direction and the + Y direction is the + Z direction. 3A, 3B, and 6 to 21C, a right-handed xyz coordinate system is shown. In the xyz coordinate system, in the first roof portion 31, the first direction from the eave to the ridge is the + y direction, and the second direction from the ridge to the eave is the -y direction. In the xyz coordinate system, the third direction from the first surface Fs1 to the second surface Bs1 along the thickness direction in the solar cell panel Pn1 is the −z direction, and the second surface Bs1 is changed to the first surface Fs1. The directed fourth direction is the + z direction. In the xyz coordinate system, in the first roof portion 31, the fifth direction in which the eaves extend is the + x direction, and the sixth direction opposite to the fifth direction in which the eaves extend is the -x direction. ing.

<1. First Embodiment>
As shown in FIGS. 1 to 6, the solar cell device 100 according to the first embodiment is located on the reference plane G0, for example. As the reference plane G0, for example, the ground is adopted.

<1-1. Schematic configuration of solar cell device>
As shown in FIGS. 1 to 6, the solar cell device 100 includes, for example, a reference portion 1, a support structure 2, a roof portion 3, and a solar cell array 4.

  The reference part 1 includes, for example, a first pillar part 11, a second pillar part 12, and a third pillar part 13. The first pillar part 11, the second pillar part 12, and the third pillar part 13 are located, for example, in a state of being separated from each other and standing with respect to the reference plane G0. In the example of FIGS. 1 to 6, the longitudinal direction of each of the first pillar portion 11, the second pillar portion 12, and the third pillar portion 13 is a direction along the + Z direction perpendicular to the reference plane G0. And the 1st pillar part 11, the 2nd pillar part 12, and the 3rd pillar part 13 are located in the state located in a line along the + X direction. Further, the end portions in the −Z direction of the first pillar portion 11, the second pillar portion 12, and the third pillar portion 13 are located in a state of being buried in a portion that forms the reference plane G <b> 0. For example, if the reference plane G0 is the ground, the ends of the first pillar part 11, the second pillar part 12, and the third pillar part 13 in the −Z direction are positioned in a state where they are buried in the ground. ing. Here, for example, a metal material having excellent strength and corrosion resistance is applied to the first pillar portion 11, the second pillar portion 12, and the third pillar portion 13. The reference portion 1 may have, for example, four or more column portions, or may have two or less column portions.

  The support structure 2 includes, for example, a ridge portion 21, a plurality of beam portions 22, and a plurality of beam portions 23.

  The ridge part 21 is located in the state supported by the reference | standard part 1 in the top part of the solar cell apparatus 100, for example. In the example of FIGS. 1 to 6, the ridge portion 21 is a long portion located along the + X direction, and includes a first pillar portion 11, a second pillar portion 12, and a third pillar portion 13. It is located in a state where it is supported by the part 1. Here, for example, a material excellent in corrosion resistance is applied to the ridge 21.

  The plurality of beam portions 22 are positioned so as to protrude from the reference portion 1 or the ridge portion 21 in the horizontal direction, for example. Here, for example, as shown in FIGS. 4 and 5, a case is assumed where a plurality of beam portions 22 are viewed in a plane in the + Z direction. In this case, the plurality of beam portions 22 exist so as to extend in the −Y direction from the ridge portion 21 and are arranged apart from each other in the + X direction, the second beam portions 22b, There are three beam portions 22c, a fourth beam portion 22d and a fifth beam portion 22e. In this case, the plurality of beam portions 22 exist so as to extend from the ridge portion 21 in the + Y direction and are arranged apart from each other in the + X direction, the sixth beam portion 22f, the seventh beam portion 22g, It has an eighth beam portion 22h, a ninth beam portion 22i, and a tenth beam portion 22j. First beam portion 22a, second beam portion 22b, third beam portion 22c, fourth beam portion 22d and fifth beam portion 22e, sixth beam portion 22f, seventh beam portion 22g, eighth beam portion 22h, The ninth beam portion 22i and the tenth beam portion 22j have a plane-symmetrical relationship with respect to a virtual plane (also referred to as a virtual plane) Vs1 passing through the ridge portion 21 and along the XZ plane. Here, for example, a metal material excellent in strength and corrosion resistance is applied to the plurality of beam portions 22. The plurality of beam portions 22 may have, for example, 11 or more beam portions, or may have 9 or less beam portions.

  The plurality of girders 23 are positioned in a state of being fixed to the plurality of beams 22, for example. The longitudinal direction of the beam portion 23 is a direction along the + X direction. In the example of FIGS. 3A to 5, the plurality of girders 23 include five first beam portions 22 a, second beam portions 22 b, third beam portions 22 c, fourth beam portions 22 d, and fifth beams. A first girder 231, a second girder 232, and a third girder 233 are included which are positioned over the part 22 e. Here, the first digit portion 231, the second digit portion 232, and the third digit portion 233 are arranged in a state of being separated from each other in the + y direction. Among the three first digit parts 231, second digit parts 232, and third digit parts 233, the first digit part 231 is located in a state of constituting an eave on the −y direction side, and the third digit part 233 is located along the ridge part 21, and the second digit part 232 is located between the first digit part 231 and the third digit part 233. Further, the plurality of girders 23 are located in a state of being spanned across the five sixth beam portions 22f, the seventh beam portion 22g, the eighth beam portion 22h, the ninth beam portion 22i, and the tenth beam portion 22j. 4th digit part 234, 5th digit part 235, and 6th digit part 236 are included. Here, out of the three fourth digit parts 234, the fifth digit part 235, and the sixth digit part 236, the sixth digit part 236 is positioned in a state of forming an eave on the + Y direction side, The girder part 234 is located along the ridge part 21, and the fifth girder part 235 is located between the fourth girder part 234 and the sixth girder part 236. The three first digit parts 231, the second digit part 232 and the third digit part 233, and the three fourth digit parts 234, the fifth digit part 235 and the sixth digit part 236 are based on the virtual plane Vs1. As shown in FIG. Here, for example, a metal material having excellent strength and corrosion resistance is applied to the plurality of girders 23. The number of the plurality of digit portions 23 may be, for example, 7 or more, or 5 or less.

  The roof portion 3 has a first roof portion 31 and a second roof portion 32. The first roof portion 31 is located on the three first girder parts 231, the second girder part 232 and the third girder part 233 as the base material. The 2nd roof part 32 is located on the 3rd 4th digit part 234, the 5th digit part 235, and the 6th digit part 236 as a base material. The 1st roof part 31 is located in the state inclined so that it may go to -Z direction, so that it goes to -Y direction. The 2nd roof part 32 is located in the state inclined so that it may go to -Z direction, so that it goes to + Y direction. Here, for example, a configuration having a plane-symmetrical relationship with respect to the virtual plane Vs1 between the first roof portion 31 and the second roof portion 32 may be employed. For each of the first roof portion 31 and the second roof portion 32, for example, a roof material such as a corrugated sheet is employed. As the corrugated plate, for example, a corrugated plate made of resin, a slate corrugated plate, an iron corrugated plate, or the like is adopted. For example, the corrugated plate is in a state where convex portions and concave portions located in a state extending along the direction from the ridge to the eaves are alternately arranged in the + X direction extending along the eaves. It has a positioned structure.

  The solar cell array 4 is located on the roof part 3 as an installation object part, for example. In the example of FIGS. 1 to 5, the solar cell array 4 includes, for example, a first solar cell array 41 and a second solar cell array 42. The first solar cell array 41 is located on the first roof portion 31. The second solar cell array 42 is located on the second roof portion 32. Each of the first solar cell array 41 and the second solar cell array 42 has a plurality of solar cell modules Mo1. In each of the 1st solar cell array 41 and the 2nd solar cell array 42, it is located in the state where several solar cell module Mo1 was connected. In the example of FIGS. 1 to 5, each of the first solar cell array 41 and the second solar cell array 42 includes seven solar cell modules Mo <b> 1 arranged along the direction along the ridge or eave (+ X direction). However, it has a structure in which six rows are arranged from the building side to the eaves side. In other words, each of the first solar cell array 41 and the second solar cell array 42 has 42 solar cell modules Mo1 positioned in a matrix. Here, for example, a configuration having a plane-symmetric relationship with respect to the virtual plane Vs1 between the first solar cell array 41 and the second solar cell array 42 may be employed. Moreover, each solar cell module Mo1 is located in the state supported or hold | maintained by the support part St1 (refer FIG. 10 etc.) etc. which are located in the state fixed on the roof part 3, for example.

  The solar cell device 100 having the above-described structure can be applied to, for example, a carport for protecting a car parked and parked outdoors from rainwater.

<1-2. Solar cell module>
As shown in FIGS. 6 and 7, each solar cell module Mo1 includes, for example, a solar cell panel Pn1 and a frame F1 that reinforces the outer edge of the solar cell panel Pn1.

<1-2-1. Solar Panel>
The solar cell panel Pn1 has a plate shape, for example, a first surface Fs1, a second surface Bs1 positioned in a direction opposite to the first surface Fs1, a first surface Fs1, and a second surface. It has side surface Ss1 located in the state which connected surface Bs1. Here, the first surface Fs1 is, for example, a surface for mainly receiving light. The second surface Bs1 is a surface to be used as the back surface of the solar cell panel Pn1, for example. In the example of FIG. 6, the side surface Ss1 of the solar cell panel Pn1 includes a first side surface Ss11, a second side surface Ss12, a third side surface Ss13, and a fourth side surface Ss14. The first side surface Ss11 exists on the first direction (+ y direction) side along the first surface Fs1 of the side surface Ss1. The first side surface Ss11 is located, for example, along the fifth direction (+ x direction). The second side surface Ss12 exists on the side of the second direction (−y direction) opposite to the first direction (+ y direction) of the side surface Ss1. For example, the second side surface Ss12 is located along the fifth direction (+ x direction). The third side surface Ss13 is present on the side of the fifth direction (+ x direction) perpendicular to the first direction (+ y direction) of the side surface Ss1 and along the first surface Fs1. For example, the third side surface Ss13 is located along the first direction (+ y direction). The fourth side surface Ss14 exists on the side of the fourth direction (−x direction) opposite to the third direction (+ x direction) of the side surface Ss1. For example, the fourth side surface Ss14 is located along the first direction (+ y direction).

  As shown in FIGS. 6 to 8, the solar cell panel Pn1 includes, for example, a first protective member Pt1, a first sealing material Se11, and a photoelectric conversion in order from the first surface Fs1 side to the second surface Bs1 side. A portion Pc1, a second sealing material Se12, a second protective member Pt2, and a terminal box Bx1 are provided.

  The first protective member Pt1 is a plate-like member, and is located, for example, on the first surface Fs1 side of the photoelectric conversion unit Pc1. Here, the surface on the + z direction side of the first protective member Pt1 constitutes the first surface Fs1. For example, the first protection member Pt1 has a role of protecting the photoelectric conversion unit Pc1 and a role of sealing the photoelectric conversion unit Pc1. For example, the first protective member Pt1 has translucency with respect to light in a specific range of wavelengths. As the wavelength in the specific range, for example, a wavelength of light with high intensity included in the light irradiated on the solar cell panel Pn1 and a wavelength of light that can be photoelectrically converted by the photoelectric conversion unit Pc1 is employed. If, for example, glass or a resin such as acrylic or polycarbonate is employed as the material of the first protective member Pt1, the first protective member Pt1 having translucency can be realized.

  For example, the first sealing material Se11 is located between the first protective member Pt1 and the photoelectric conversion unit Pc1. For example, the second sealing material Se12 is located between the photoelectric conversion unit Pc1 and the second protective member Pt2. In other words, the sealing material Se1 including the first sealing material Se11 and the second sealing material Se12 is, for example, the first protection member Pt1 and the second protection member Pt2 so as to cover the photoelectric conversion unit Pc1. It is located in a state of being filled in between. For example, the sealing material Se1 has a role of holding the photoelectric conversion unit Pc1 and a role of sealing the photoelectric conversion unit Pc1. The sealing material Se1 has translucency similarly to the first protective member Pt1. For example, a thermosetting resin is used as the material of the sealing material Se1. Examples of the thermosetting resin include those containing ethylene vinyl acetate copolymer (EVA) or polyvinyl butyral (PVB) as a main component. The thermosetting resin may contain a crosslinking agent. Here, the main component means a component having the largest (high) content ratio (also referred to as content).

  The photoelectric conversion unit Pc1 has, for example, a plurality of solar cell elements C1, a plurality of first wiring members Wr1, and a plurality of second wiring members Wr2. In the example of FIG. 6, in the photoelectric conversion unit Pc1, the plurality of solar cell elements C1 are positioned in a state of being two-dimensionally arranged. Specifically, the photoelectric conversion unit Pc1 includes, for example, a plurality (four in this case) of solar cell strings Sg1. Each solar cell string Sg1 includes, for example, a plurality (here, six) solar cell elements C1 and a plurality of first wiring members Wr1. For example, the plurality of first wiring members Wr1 electrically connect the solar cell elements C1 adjacent to each other among the plurality of solar cell elements C1 in series. The plurality of second wiring members Wr2 electrically connect the solar cell strings Sg1 adjacent to each other among the solar cell strings Sg1.

  For example, the second protection member Pt2 is located on the second surface Bs1 side of the photoelectric conversion unit Pc1. Here, the surface of the second protective member Pt2 on the −z direction side forms the second surface Bs1. For example, the second protection member Pt2 has a role of protecting the photoelectric conversion unit Pc1 and a role of sealing the photoelectric conversion unit Pc1. For example, the second protective member Pt2 may have translucency or may not have translucency. As the second protective member Pt2, for example, a flexible sheet-like member (also referred to as a sheet member) or a plate-like member is employed. For example, resin is applied to the material of the sheet member. As the material of the plate-like member, for example, the same material as that of the first protective member Pt1 can be adopted.

  The terminal box Bx1 can take out the output obtained by the photoelectric conversion unit Pc1 to the outside. The terminal box Bx1 is located on the second surface Bs1, for example. The terminal box Bx1 can be fixed to the second surface Bs1 using, for example, a resin such as silicon sealant. The terminal box Bx1 includes, for example, a box, a terminal plate, and a cable. For example, a modified polyphenylene ether resin (modified PPE resin) or a polyphenylene oxide resin (PPO resin) is applied to the box material. The terminal board is located in the box and is connected to the second wiring member Wr2 of the photoelectric conversion unit Pc1. The cable can lead electric power to the outside of the box.

<1-2-2. Frame>
For example, the frame F1 has a structure in which the solar battery panel Pn1 can be fitted. The frame F1 has a function of holding the side surface Ss1 of the solar cell panel Pn1 and the outer peripheral portion along the side surface Ss1. In the first embodiment, for example, as shown in FIG. 6, the frame F1 includes a first frame member F11, a second frame member F12, a third frame member F13, and a fourth frame member F14. doing. The first frame member F11 is located along the first side surface Ss11. The second frame member F12 is located along the second side surface Ss12. The third frame member F13 is located along the third side surface Ss13. The fourth frame member F14 is located along the fourth side surface Ss14. In the frame F1, for example, the third frame member F13 and the fourth frame member F14 are fixed to the first frame member F11 by fastening members such as screws. In the frame F1, for example, the third frame member F13 and the fourth frame member F14 are fixed to the second frame member F12 by fastening members such as screws. The 1st frame member F11, the 2nd frame member F12, the 3rd frame member F13, and the 4th frame member F14 can be produced by extrusion molding etc. of aluminum, for example.

  The first frame member F11 includes, for example, a first fitted portion Ft1, a first wall-shaped portion Wl1, a first groove-shaped portion Tr1, and a first convex portion Cv1.

  The 1st to-be-fitted part Ft1 is a groove-shaped part located in the state which the outer peripheral part (it is also called 1st outer peripheral part) Ep1 along 1st side surface Ss11 of solar cell panel Pn1 has fitted. is there. In the example of FIG. 8, the first fitted portion Ft <b> 1 is a U-shaped portion whose cross section along the yz plane is open on the −y direction side. The depth direction (also referred to as first depth direction) in the space (also referred to as first internal space) Sp1 inside the first fitted portion Ft1 is the first direction (+ y direction). In the third direction (−z direction), the width of the first internal space Sp1 is equal to or greater than the thickness of the solar cell panel Pn1. Here, the 1st to-be-fitted part Ft1 has 1st part Pa1, 2nd part Pa2, and 3rd part Pa3, for example. The first portion Pa1 is located in a state facing the first surface Fs1 of the solar cell panel Pn1 on the fourth direction (+ z direction) side. The second portion Pa2 is located in a state of facing the second surface Bs1 of the solar cell panel Pn1 on the third direction (−z direction) side. The third portion Pa3 connects the portion on the first direction (+ y direction) side of the first portion Pa1 and the portion on the first direction (+ y direction) side of the second portion Pa2 and the solar cell panel Pn1. The first side surface Ss11 is opposed to the first side surface Ss11.

  The first wall-shaped portion Wl1 extends from the first fitted portion Ft1 in the third direction (−z direction) from the first surface Fs1 toward the second surface Bs1 along the thickness direction of the solar cell panel Pn1. It is the part located in the state. In the example of FIG. 8, the first wall-shaped portion Wl1 extends in the third direction (−z direction) from the end portion on the second direction (−y direction) side of the second portion Pa2 of the first fitted portion Ft1. ). Here, the first wall-shaped part Wl1 has, for example, a flat plate shape along the xz plane.

  The first grooved portion Tr1 is located on the first direction (+ y direction) side of the first wall-shaped portion Wl1. The first groove-shaped portion Tr1 is open on the first direction (+ y direction) side and is positioned along the + x direction as the longitudinal direction (also referred to as the first longitudinal direction) of the first side surface Ss11. . In the example of FIG. 8, the first grooved portion Tr1 is arranged in the first direction (+ y) from the second portion Pa2 of the first fitted portion Ft1 and the first direction (+ y direction) of the first wall-shaped portion Wl1. The first protrusion Pj1 and the first wall-shaped part Wl1 are located in a state protruding in the direction). The depth direction of the first groove portion Tr1 is the second direction (−y direction).

  The first convex portion Cv1 includes a first protrusion Oh1. The first projecting portion Oh1 is in the first direction (the first wall-shaped portion Wl1) on the fourth direction (+ z direction) opposite to the third direction (−z direction) of the first groove-shaped portion Tr1. + Y direction) is a portion that is located in a protruding state. In the example of FIG. 8, the first portion Pa1, the second portion Pa2, and the third portion Pa3 that are located in a state where the first fitted portion Ft1 is formed constitute the first protruding portion Oh1. Exists in a state. For this reason, the 1st to-be-fitted part Ft1 exists in the state located in 1st convex-shaped part Cv1. Thereby, the quantity of the material which comprises the 1st frame member F11 reduces, and the quantity of the material required in order to manufacture the 1st solar cell array 41 can be reduced.

  Here, for example, in the third direction (−z direction), the width (also referred to as a first width) W1 of the first convex portion Cv1 is the width of the internal space Is1 of the first groove-shaped portion Tr1 (the second width). It is substantially the same as W2. For example, the second width W2 is larger than the thickness of the solar cell panel Pn1 in the third direction (−Z direction).

  In the example of FIG. 8, the first frame member F11 has a first overhang portion Pr1 on the first direction (+ y direction) side of the first convex portion Cv1. The first overhanging portion Pr1 projects in the first direction (+ y direction) from an end portion (also referred to as a first end portion) Ed1 on the third direction (−z direction) side of the first convex portion Cv1. It is the part located in the state. From another viewpoint, the first projecting portion Pr1 projects in the first direction (+ y direction) from the first end portion Ed1 on the fourth direction (+ z direction) side of the first groove-shaped portion Tr1. It is the part located in the state. Here, as the shape of the first overhang portion Pr1, for example, a plate-like shape may be employed. The first overhanging portion Pr1 is located in a state where it is connected to the first end portion Ed1 on the first direction (+ y direction) side of the second portion Pa2. Accordingly, the second portion Pa2 is positioned so as to extend substantially beyond the first end Ed1 connected to the third portion Pa3 due to the presence of the first overhang portion Pr1. It has become. Further, in the example of FIG. 8, the first frame member F <b> 11 has a first direction (+ y) from an end (also referred to as a second end) Ed <b> 2 on the third direction (−z direction) side of the first grooved portion Tr <b> 1. 2nd overhang | projection part Pr2 located in the state overhang | projected in the direction). This 2nd overhang | projection part Pr2 is a part located in the state facing the 1st overhang | projection part Pr1. Here, the second overhanging portion Pr2 is a plate-like portion. As the shape of the second overhang portion Pr2, for example, a plate-like shape can be adopted. Here, from another point of view, the second overhanging portion Pr2 is positioned in a state of being connected to the second end portion Ed2 on the first direction (+ y direction) side of the first protrusion Pj1. . Thus, if the first overhanging portion Pr1 and the second overhanging portion Pr2 exist, the depth in the depth direction (−y direction) of the first grooved portion Tr1 can be substantially increased.

  In the first embodiment, the first frame member F11 includes, for example, a first supported portion Fg1. For example, the first supported portion Fg1 is positioned in a state where it is connected to the end portion of the first wall-shaped portion Wl1 on the third direction (−z direction) side. In other words, the first supported portion Fg1 is positioned in a state of being connected to the third direction (−z direction) side of the first groove-like portion Tr1 of the first wall-like portion Wl1. . As the first supported portion Fg1, for example, a flat plate portion along the xy plane is employed. In the example of FIG. 8, the first supported portion Fg1 is positioned in a state of protruding in the first direction (+ y direction) from the end portion of the first wall-shaped portion Wl1 on the third direction (−z direction) side. ing. The first supported portion Fg1 is located in a state where it is supported by, for example, a support portion St1 (see FIG. 10) located on the roof portion 3. Moreover, in 1st Embodiment, the 1st to-be-supported part Fg1 is located in the state currently fixed to the roof part 3 by the support part St1 and the fixing tool Fc1 (refer FIG. 10), for example.

  As shown in FIGS. 6, 7 and 9A, the second frame member F12 includes, for example, a second fitted portion Ft2 and a second wall-shaped portion Wl2, similarly to the first frame member F11. And a second groove portion Tr2 and a second convex portion Cv2. Here, for example, a cross section perpendicular to the first longitudinal direction (+ x direction) of the first side surface Ss11 in the first frame member F11 is defined as the first cross section, and the longitudinal direction (second direction) of the second side surface Ss12 in the second frame member F12. A cross section perpendicular to the + x direction (also referred to as a longitudinal direction) is defined as a second cross section. In this case, for example, as shown in FIG. 7, a virtual plane (also referred to as a first virtual plane) in which the shape of the first cross section and the shape of the second cross section are perpendicular to the first direction (+ y direction). ) A configuration having a plane symmetry with respect to Pv1 can be realized. In the example of FIG. 7, the first virtual plane Pv1 is a plane that passes through the approximate center of the solar cell panel Pn1 and extends along the xz plane.

  Thus, for example, in one solar cell module Mo1, if the opposing first frame member F11 and second frame member F12 have similar cross sections, the first frame member F11 and the second frame member F12. And can be members having similar shapes. For this reason, the kind of member which comprises the flame | frame F1 used for the solar cell array 4 can be reduced. Thereby, inventory management of a plurality of members including the first frame member F11 and the second frame member F12 can be simplified. Further, for example, the first frame member F11 and the second frame member F12 having the same shape can be efficiently manufactured using a common mold. Thereby, for example, the productivity of the solar cell array 4 and the solar cell module Mo1 used for the solar cell array 4 can be improved.

  As shown in FIG. 9A, the second fitted portion Ft2 is fitted with an outer peripheral portion (also referred to as a second outer peripheral portion) Ep2 along the second side surface Ss12 of the solar cell panel Pn1. It is the groove-shaped part located in the state. In the example of FIG. 9A, the second fitted portion Ft2 is a U-shaped portion whose cross section along the yz plane is open on the first direction (+ y direction) side. The depth direction (also referred to as second depth direction) in the space (also referred to as second internal space) Sp2 inside the second fitted portion Ft2 is the second direction (−y direction). In the third direction (−z direction), the width of the second internal space Sp2 is equal to or greater than the thickness of the solar cell panel Pn1. Here, the 2nd to-be-fitted part Ft2 has 4th part Pa4, 5th part Pa5, and 6th part Pa6, for example. The fourth portion Pa4 is located in a state facing the first surface Fs1 of the solar cell panel Pn1 on the fourth direction (+ z direction) side. The fifth portion Pa5 is located in a state of facing the second surface Bs1 of the solar cell panel Pn1 on the third direction (−z direction) side. The sixth portion Pa6 connects the portion of the fourth portion Pa4 on the first direction (−y direction) side and the portion of the fifth portion Pa5 on the first direction (−y direction) side, and is a solar cell. It is located in a state of facing the second side surface Ss12 of the panel Pn1.

  The second wall-shaped part Wl2 extends from the second fitted part Ft2 in the third direction (−z direction) from the first surface Fs1 to the second surface Bs1 along the thickness direction of the solar cell panel Pn1. It is the part located in the state. In the example of FIG. 9A, the second wall-shaped portion Wl2 extends from the end of the fifth portion Pa5 of the second fitted portion Ft2 on the first direction (+ y direction) side in the third direction (− It is located in a state extending in the z direction). Here, the second wall-shaped part Wl2 has, for example, a flat plate shape along the xz plane.

  The second groove-shaped portion Tr2 is located on the second direction (−y direction) side of the second wall-shaped portion Wl2. The second groove portion Tr2 is open on the second direction (−y direction) side and is positioned along the + x direction as the longitudinal direction (second longitudinal direction) of the second side surface Ss12. In the example of FIG. 9A, the second groove-shaped portion Tr2 is second from the fifth portion Pa5 of the second fitted portion Ft2 and the first direction (+ y direction) side of the second wall-shaped portion Wl2. It is in the state formed by the 2nd projection part Pj2 located in the state which protrudes in the direction (-y direction), and 2nd wall-shaped part Wl2. The depth direction of the second groove portion Tr2 is the first direction (+ y direction).

  The second convex portion Cv2 includes a second protruding portion Oh2. The second projecting portion Oh2 has a second direction (the second wall-shaped portion Wl2) on the side of the fourth direction (+ z direction) opposite to the third direction (−z direction) of the second groove-shaped portion Tr2. It is the part located in the state which protrudes in -y direction). In the example of FIG. 9A, the fourth portion Pa4, the fifth portion Pa5, and the sixth portion Pa6 which are located in a state where the second fitted portion Ft2 is formed constitute the second protruding portion Oh2. It exists in the state that is. For this reason, the second fitted portion Ft2 is in a state of being located in the second convex portion Cv2. Thereby, the quantity of the material which comprises the 2nd frame member F12 reduces, and the quantity of the material required in order to manufacture the 1st solar cell array 41 can be reduced.

  Here, for example, in the third direction (−z direction), the width of the second convex portion Cv2 is the same as the first width W1 of the first convex portion Cv1, and the internal space of the second groove-shaped portion Tr2. The width of Is2 is the same as the second width W2 of the internal space Is1 of the first groove portion Tr1. For example, the second width W2 is larger than the thickness of the solar cell panel Pn1 in the third direction (−Z direction).

  In the example of FIG. 9A, the second frame member F12 has a third projecting portion Pr3 on the second direction (−y direction) side of the second convex portion Cv2. The third projecting portion Pr3 projects in the second direction (−y direction) from the end portion (also referred to as the third end portion) Ed3 on the third direction (−z direction) side of the second convex portion Cv2. It is the part that is located in the state. From another viewpoint, the third projecting portion Pr3 projects in the second direction (−y direction) from the third end portion Ed3 on the fourth direction (+ z direction) side of the second groove portion Tr2. It is the part that is located in the state. Here, as the shape of the third overhang portion Pr3, for example, a plate-like shape may be employed. The third overhang Pr3 is located in a state where it is connected to the third end Ed3 on the second direction (−y direction) side of the fifth portion Pa5. Accordingly, the fifth portion Pa5 is positioned so as to extend substantially beyond the third end portion Ed3 connected to the sixth portion Pa6 due to the presence of the third overhang portion Pr3. It has become. Further, in the example of FIG. 9A, the second frame member F12 has a second end (also referred to as a fourth end) Ed4 on the third groove side Tr2 side in the third direction (−z direction). It has the 4th overhang | projection part Pr4 located in the state overhang | projected in the direction (-y direction). The fourth overhanging portion Pr4 is a portion located in a state of facing the third overhanging portion Pr3. Here, the fourth overhanging portion Pr4 is a plate-like portion. As the shape of the fourth overhanging portion Pr4, for example, a plate-like shape can be adopted. Here, from another point of view, the fourth overhanging portion Pr4 is located in a state where it is connected to the fourth end portion Ed4 on the second direction (−y direction) side of the second protrusion Pj2. Yes. Thus, if the third overhanging portion Pr3 and the fourth overhanging portion Pr4 exist, the depth in the + y direction of the second grooved portion Tr2 can be substantially increased.

  Moreover, in 1st Embodiment, the 2nd frame member F12 has the 2nd to-be-supported part Fg2, similarly to the 1st frame member F11, for example. For example, the second supported portion Fg2 is positioned in a state where it is connected to the end portion on the third direction (−z direction) side of the second wall-shaped portion Wl2. In other words, the second supported portion Fg2 is located in a state where it is connected to the third direction (−z direction) side of the second groove-like portion Tr2 of the second wall-like portion Wl2. . In the example of FIG. 9A, the second supported portion Fg2 projects in the second direction (−y direction) from the end of the second wall-shaped portion Wl2 on the third direction (−z direction) side. Located in a state. As the second supported portion Fg2, for example, a flat plate portion along the xy plane is employed. The second supported part Fg2 is located in a state where it is supported by, for example, the support part St1 located on the roof part 3.

  By the way, a set of members including the first frame member F11, the second frame member F12, the third frame member F13, and the fourth frame member F14 constituting the frame F1 is, for example, a frame member unit Fu1. This frame member unit Fu1 is a group (unit) of members for constituting the frame F1 for the solar cell module Mo1. This frame member unit Fu1 is for arranging along the side surface Ss1 of the plate-like solar cell panel Pn1 in a state before being arranged with respect to the solar cell panel Pn1. In this state, the first frame member F11 is a member that is disposed along the first side surface Ss11 of the side surface Ss1 of the solar cell panel Pn1. The 2nd frame member F12 is a member for arranging along the 2nd side Ss12 located on the opposite side to the 1st side Ss11 among side Ss1 of solar cell panel Pn1. The third frame member F13 is a member that is disposed along the third side surface Ss13 of the side surface Ss1 of the solar cell panel Pn1. The fourth frame member F14 is a member that is disposed along the fourth side surface Ss14 of the side surfaces Ss1 of the solar cell panel Pn1.

  Further, in a state before the frame member unit Fu1 is arranged with respect to the solar cell panel Pn1, the first fitted portion Ft1 included in the first frame member F11 is on the first side surface Ss11 of the solar cell panel Pn1. It is a groove-shaped part which can fit the 1st outer peripheral part Ep1 along. The first wall member W11 included in the first frame member F11 has a width direction orthogonal to both the first longitudinal direction (+ x direction) and the first depth direction (+ y direction) in the first fitted portion Ft1. In the −z direction (also referred to as the first width direction), it is located in a state extending from the first fitted portion Ft1. The first groove-shaped portion Tr1 of the first frame member F11 is open on the first depth direction (+ y direction) side of the first wall-shaped portion Wl1 on the first depth direction (+ y direction) side, and It is located along the first longitudinal direction (+ z direction). The first convex portion Cv1 included in the first frame member F11 includes a first protrusion Oh1. The first protruding portion Oh1 is a first wall-shaped portion on the + z direction side as a direction (also referred to as a second width direction) opposite to the first width direction (−z direction) of the first groove-shaped portion Tr1. It is located in a state of protruding in the first depth direction (+ y direction) from Wl1.

  Further, in a state before the frame member unit Fu1 is arranged with respect to the solar cell panel Pn1, the second fitted portion Ft2 included in the second frame member F12 is on the second side surface Ss12 of the solar cell panel Pn1. It is a groove-shaped part in which the 2nd outer peripheral part Ep2 along can be fitted. The second wall member W12 of the second frame member F12 has a width direction orthogonal to both the second longitudinal direction (+ x direction) and the second depth direction (−y direction) in the second fitted portion Ft2. In the −z direction (also referred to as a third width direction), the second fitting portion Ft2 is positioned in a state of extending. The second grooved portion Tr2 of the second frame member F12 is opened on the second depth direction (−y direction) side of the second wall shape portion Wl2 on the second depth direction (−y direction) side. And located along the second longitudinal direction (+ x direction). The second convex portion Cv2 included in the second frame member F12 includes a second protruding portion Oh2. The second protruding portion Oh2 is a second wall-shaped portion on the + z direction side opposite to the third width direction (−z direction) of the second groove-shaped portion Tr2 (also referred to as a fourth width direction). It is located in a state of protruding in the second depth direction (−y direction) from Wl2.

  Here, the first frame member F11 and the second frame member F12 have the same configuration. Specifically, the first frame member F11 includes a first fitted portion Ft1, a first wall-shaped portion Wl1, a first groove-shaped portion Tr1, and a first convex portion Cv1. . Similarly to the first frame member F11, the second frame member F12 is similar to the first frame member F11, the second fitted portion Ft2, the second wall-shaped portion Wl2, the second groove-shaped portion Tr2, A second convex portion Cv2. For this reason, for example, the shape of the first cross section perpendicular to the first longitudinal direction (+ x direction) of the first frame member F11 and the second cross section of the second frame member F12 perpendicular to the second longitudinal direction (+ x direction). A configuration having a relationship in which the shapes are the same can be realized. If such a configuration is adopted, the types of members constituting the frame F1 used in the solar cell array 4 can be reduced. Thereby, inventory management of a plurality of members including the first frame member F11 and the second frame member F12 can be simplified. Further, for example, the first frame member F11 and the second frame member F12 having the same cross section can be efficiently manufactured using a common mold. Thereby, for example, the productivity of the solar cell array 4, the solar cell module Mo1 used for the solar cell array 4, and the frame member unit Fu1 for the solar cell module Mo1 can be improved. Here, in the first width direction (−z direction), the width (second width) W2 of the internal space Is1 of the first groove-shaped portion Tr1 is equal to the internal space (first of the first fitted portion Ft1). Internal space) It is larger than the width of Sp1. In the third width direction (−z direction), the width of the internal space Is2 of the second groove-shaped portion Tr2 is the same as that of the second width W2 of the internal space Is1. 2 Internal space) It is larger than the width of Sp2. For this reason, for example, when the frame member unit Fu1 is disposed with respect to the solar cell panel Pn1, the first groove portion Tr1 and the second groove portion Tr2 are fitted in the first width direction (−Z direction). A state in which the second width W2 is larger than the thickness of the solar cell panel Pn1 to be performed can be realized. Thereby, for example, in the first width direction (−Z direction), the width (first width) of the first convex portion Cv1 fitted into the second groove portion Tr2 is larger than the thickness of the solar cell panel Pn1. A configuration in which W1 is larger can be realized.

<1-3. Connection between solar cell modules>
Here, for example, as shown in FIG. 9A and FIG. 9B, the two suns that are positioned adjacent to each other in the first direction (+ y direction) in the first solar cell array 41. Attention is paid to the battery module Mo1. Of these two solar cell modules Mo1, the solar cell module Mo1 located on the second direction (−y direction) side is defined as the first solar cell module Mo11, and is located on the first direction (+ y direction) side. The solar cell module Mo1 is referred to as a second solar cell module Mo12.

  Here, as shown in FIG. 9A and FIG. 9B, the first convex portion Cv1 of the first frame member F11 in the first solar cell module Mo11 is the second in the second solar cell module Mo12. The second groove portion Tr2 of the frame member F12 is fitted. Thereby, in the solar cell array 4, the state by which the some solar cell module Mo1 is connected may be implement | achieved. Here, as described above, the first frame member F11 and the second frame member F12 have the same configuration. For this reason, a fitting state can be realized by the first frame member F11 and the second frame member F12 whose cross-sectional shapes along the yz plane have a plane-symmetrical relationship with each other. Thereby, in the solar cell array 4, the 1st convex part Cv1 of the 1st frame member F11 in 1st solar cell module Mo11 turns into 2nd groove-like part Tr2 of the 2nd frame member F12 in 2nd solar cell module Mo12. Located in a mated state. And if such a structure is employ | adopted, the kind of member of the flame | frame F1 used for the solar cell array 4 may be reduced, for example. Thereby, as described above, for example, the productivity of the solar cell array 4, the solar cell module Mo1 used for the solar cell array 4, and the frame member unit Fu1 for the solar cell module Mo1 can be improved. Here, when the first width W1 and the second width W2 are larger than the thickness of the solar cell panel Pn1 in the third direction (−z direction), the second groove portion Tr2 is fitted. The strength of the first convex portion Cv1 can be easily increased. In other words, in the third direction (−z direction), if the first width W1 and the second width W2 are larger than the widths of the first fitted portion Ft1 and the second fitted portion Ft2, The strength of the first convex portion Cv1 fitted in the two-groove portion Tr2 can be easily increased. As a result, for example, the strength and durability of the first solar cell module Mo11 and the first solar cell array 41 can be increased against a load caused by wind and rain.

  In addition, as described above, in the third direction (−z direction), the first width W1 of the first convex portion Cv1 and the second width W2 of the internal space Is1 of the second groove-like portion Tr2 in the third direction (−z direction). Are substantially the same, a state where the first convex portion Cv1 is firmly fitted to the second groove-like portion Tr2 can be realized. Thereby, for example, a state in which the first frame member F11 and the second frame member F12 are firmly connected between the solar cell modules Mo1 adjacent in the first direction (+ y direction) can be realized. As a result, for example, the strength against loads in various directions in the solar cell array 4 can be improved. Further, for example, moisture does not easily pass between the first frame member F11 and the second frame member F12 between the solar cell modules Mo1 adjacent in the first direction (+ y direction). At this time, the deterioration of the roof part 3 can be reduced. Incidentally, here, that the first width W1 and the second width W2 are substantially the same means that the first width W1 and the second width W2 are substantially the same. Specifically, the first width W1 and the second width W2 are substantially the same, and the state is such that the fitting of the first convex portion Cv1 to the second groove-like portion Tr2 can be realized. This means that a minute clearance of, for example, about 0.5 mm exists between the first width W1 and the second width W2. At this time, for example, the first width W1 is slightly smaller than the second width W2, and the difference between the first width W1 and the second width W2 is a minute clearance.

  In addition, as described above, the first frame member F11 in the first solar cell module Mo11 has the first overhanging portion Pr1 and the second overhanging portion Pr2. The second frame member F12 in the second solar cell module Mo12 has a third overhanging portion Pr3 and a fourth overhanging portion Pr4. Thereby, for example, in the first direction (+ y direction), the first frame member F11 is fitted to the second frame member F12 between the adjacent first frame member F11 and the second frame member F12. A long distance can be in a long state. As a result, for example, the first frame member F11 and the second frame member F12 may be firmly connected between the adjacent solar cell modules Mo1. Therefore, for example, the strength against loads in various directions in the solar cell array 4 can be further improved.

<1-4. Fixing the solar cell module>
As shown in FIG. 10, the first solar cell array 41 includes a support portion St1 that supports a plurality of solar cell modules Mo1. The support part St1 is located on the roof part 3 as an installation target part. As shown in FIGS. 10 and 11, the support portion St <b> 1 is located along the convex portion 3 pr of the first roof portion 31, for example. In the example of FIGS. 10 and 11, the support portion St <b> 1 has a first plate-like portion Bd <b> 1 and a second plate-like portion Bd <b> 2 that are positioned in a state of being connected in a V shape. The first plate-like part Bd1 is located so as to go from the convex part 3pr of the first roof part 31 to the concave part 3re. The second plate-like part Bd2 is located on the opposite side of the first plate-like part Bd1 from the convex part 3pr of the first roof part 31 toward the concave part 3re. The support portion St1 is fixed to the first roof portion 31. For example, a state in which the support portion St1 is fixed to the first roof portion 31 with a fastening member Sc1 such as a screw may be employed.

  As described above, for example, in the first solar cell array 41, the first solar cell module Mo11 and the second solar cell module Mo12 that are located adjacent to each other in the first direction (+ y direction) are connected. Located in a state. For this reason, the support part St1 is, for example, one of the first solar cell modules Mo11 and the second solar cell module Mo12 located adjacent to each other in the first direction (+ y direction). May be positioned in a fixed state. As described above, if a structure in which one of the first solar cell module Mo11 and the second solar cell module Mo12 is fixed to the support portion St1 is employed, the solar cell module Mo1 is supported. The number of places fixed to the part St1 is reduced. Thereby, when installing the solar cell array 4 with respect to the roof part 3, the location which fixes solar cell module Mo1 with respect to the support part St1 located on the roof part 3, for example can be reduced. As a result, for example, the construction of the solar cell array 4 can be facilitated.

  Specifically, for example, in the first solar cell array 41, the first frame member F11 of the first solar cell module Mo11 and the second frame member F12 of the second solar cell module Mo12 are connected. ing. For this reason, for example, in a state where one of the first frame member F11 of the first solar cell module Mo11 and the second frame member F12 of the second solar cell module Mo12 is fixed to the support portion St1. May be located. In the example of FIG. 9B and FIG. 10, the first solar cell module Mo11 is located obliquely below the second solar cell module Mo12. Therefore, for example, if a configuration in which the first frame member F11 of the first solar cell module Mo11 is fixed to the support portion St1 is adopted, the first solar cell array 41 is maintained while maintaining the strength of the first solar cell array 41. 41 can be easily constructed.

  In the example of FIG. 10, the first solar cell module Mo11 is positioned in a state of being fixed to the support portion St1. Specifically, the first supported portion Fg1 of the first frame member F11 is positioned in a state of being sandwiched between the support portion St1 and the fixing tool Fc1. For example, the fixing tool Fc1 is fastened to the support portion St1 by the fastening member Fx1 on the support portion St1. In the example of FIG. 10, the fastening member Fx1 includes a bolt Bt1 and a nut Nt1. For example, a metal fitting is applied to the fixing tool Fc1. Further, the first supported portion Fg1 of the first frame member F11 is positioned in a state where it is supported by the support portion St1. The second supported portion Fg2 of the second frame member F12 is positioned in a state where it is supported by the support portion St1 via the fixing tool Fc1.

  By the way, as shown in FIG. 11, the first roof portion 31 is attached to any one of the first girder part 231, the second girder part 232, and the third girder part 233 directly or via another member. In the state fixed by the fastening member Fx0. The fastening member Fx0 includes, for example, a bolt Bt0, a nut Nt0, and a washer Ws0.

<1-5. Summary of First Embodiment>
In the solar cell device 100 according to the first embodiment, for example, in one solar cell module Mo1, the first frame member F11 and the second frame member F12 facing each other have the same configuration. In this case, for example, a configuration in which the first frame member F11 and the second frame member F12 have a cross-sectional shape having a plane-symmetric relationship with each other can be realized. That is, for example, a configuration in which the first frame member F11 and the second frame member F12 have the same shape can be realized. Thereby, the kind of member for comprising the flame | frame F1 used for the solar cell array 4 can be reduced. As a result, inventory management of a plurality of members including the first frame member F11 and the second frame member F12 can be simplified. Further, for example, the first frame member F11 and the second frame member F12 having the same shape can be efficiently manufactured using a common mold. Thereby, for example, the productivity of the solar cell array 4, the solar cell module Mo1 used for the solar cell array 4, and the frame member unit Fu1 for the solar cell module Mo1 can be improved.

<2. Other embodiments>
The present disclosure is not limited to the above-described first embodiment, and various changes and improvements can be made without departing from the scope of the present disclosure.

<2-1. Second Embodiment>
In the first embodiment, for example, as shown in FIGS. 12A to 14, any one of the third frame member F13 and the fourth frame member F14 is used instead of the first frame member F11 and the second frame member F12. One of the members may be fixed to the support portion St1.

  In the example of FIG. 12A to FIG. 14, a member (also referred to as a long member) St1A whose longitudinal direction is the direction along the first direction (+ y direction) is employed as the support portion St1. And both the 3rd frame member F13 and the 4th frame member F14 of one solar cell module Mo1 are being fixed to one elongate member St1A.

  Here, on the 1st roof part 31, several elongate member St1A is located in the state located in a line in the 5th direction (+ x direction). Each long member St1A is located in a state where it is fixed to the first roof portion 31 with a fastening member such as a screw, for example. For example, as shown in FIG. 13, the long member St1A has a configuration in which a cross section perpendicular to the longitudinal direction along the first direction (+ y direction) is U-shaped. In the example of FIG. 13, the long member St1A has a first plate portion U0, a second plate portion B0, and a third plate portion C0. The first plate portion U0 and the second plate portion B0 are plate-like portions along the xy plane that are located in a state of facing each other in the third direction (−z direction). The first plate portion U0 is located on the fourth direction (+ z direction) side with respect to the second plate portion B0. The third plate portion C0 is a flat plate-like portion along the yz plane that connects the first plate portion U0 and the second plate portion B0. Such a long member St1A can be produced, for example, by extrusion molding of aluminum.

  The first wall member W11 of the first frame member F11 in the first solar cell module Mo11 is, for example, a first chip that is located in a state where a space in which a part of the long member St1A is located is formed. Part Re1. As shown in FIG. 12B and FIG. 13, the first chipped portion Re1 has the third direction (−z) of the first wall-shaped portion W11 when the first wall-shaped portion W11 is viewed in plan. It is a portion located in a depressed state so that the corner portion located on the (direction) side is missing. Here, due to the presence of the first chipped portion Re1, a space Ac1 in which a part of the long member St1A is located (also referred to as a first chipped space) is formed. With such a configuration, for example, in the first frame member F11, the portion of the first wall-shaped portion W11 where the first chipped portion Re1 does not exist is more than the third frame member F13 and the fourth frame member F14. A state of extending in the third direction (−z direction) can be realized. At this time, the section modulus of the first frame member F11 can be improved. Therefore, for example, the load bearing performance in the solar cell module Mo1 can be improved.

  The second wall member W12 of the second frame member F12 in the second solar cell module Mol2 is, for example, a second chip that is located in a state in which a space in which a part of the long member St1A is located is formed. Part Re2. Here, similarly to the first embodiment, the first frame member F11 and the second frame member F12 have the same configuration. Thereby, for example, the first cross section perpendicular to the first longitudinal direction (+ x direction) of the first frame member F11 and the second cross section perpendicular to the second longitudinal direction (+ x direction) of the second frame member F12 are: A configuration having a plane-symmetrical relationship with respect to the first virtual plane Pv1 can be realized. In this case, the second chipped portion Re2 is located on the third direction (−z direction) side of the second wall-shaped portion W12 when the second wall-shaped portion W12 is viewed in plan. It is the part located in the state where it was depressed so that a corner | angular part might be missing. Here, due to the presence of the second chipped portion Re2, a space Ac2 in which a part of the long member St1A is located (also referred to as a second chipped space) is formed. With such a configuration, for example, also in the second frame member F12, as in the first frame member F11, the portion of the second wall-shaped portion Wl2 where the second chipped portion Re2 does not exist is the third frame. The state extended toward the 3rd direction (-z direction) rather than member F13 and the 4th frame member F14 may be realized. At this time, the section modulus of the second frame member F12 can be improved. Therefore, for example, the load bearing performance in the solar cell module Mo1 can be improved.

  For example, the third frame member F13 of the first solar cell module Mo11 and the third frame member F13 of the second solar cell module Mo12 are long members on the fourth direction (+ z direction) side of the long member St1A, respectively. It is located along St1A. As shown in FIG. 12B, the third frame member F13 includes, for example, a third fitted part Ft3, a third wall-like part Wl3, and a third supported part Fg3. . The third fitted portion Ft3 is a groove-like portion located in a state where an outer peripheral portion (also referred to as a third outer peripheral portion) along the third side surface Ss13 of the solar cell panel Pn1 is fitted. . In the example of FIG. 12B, the third fitted portion Ft3 is a U-shaped portion whose cross section along the xz plane is open on the sixth direction (−x direction) side. The depth direction (also referred to as third depth direction) in the space (also referred to as third internal space) Sp3 inside the third fitted portion Ft3 is the fifth direction (+ x direction). The third wall-shaped part Wl3 is a part located in a state of extending from the third fitted part Ft3 in the third direction (−z direction). In the example of FIG. 12A and FIG. 12B, the third wall-shaped portion Wl3 has a flat plate shape along the yz plane. For example, the third supported portion Fg3 is positioned in a state of being connected to an end portion on the third direction (−z direction) side of the third wall-shaped portion Wl3. In the example of FIG. 12A and FIG. 12B, the third supported portion Fg3 is located in a state of protruding in the sixth direction (−x direction) from the third wall-shaped portion Wl3. It is a flat part along. In the example of FIG. 13, the third supported portion Fg3 is supported by the long member St1A on the long member St1A and fixed to the long member St1A by fastening by the fastening member Fx0. positioned.

  For example, the fourth frame member F14 of the first solar cell module Mo11 and the fourth frame member F14 of the second solar cell module Mo12 are long members on the fourth direction (+ z direction) side of the long member St1A, respectively. It is located along St1A. As the fourth frame member F14, for example, one having the same structure as the third frame member F13 is employed. In this case, in the solar cell module Mo1, the fourth frame member F14 is positioned in a state in which an outer peripheral portion (also referred to as a fourth outer peripheral portion) along the fourth side surface Ss14 of the solar cell panel Pn1 is fitted. doing. Here, the structure of the third frame member F13 and the structure of the fourth frame member F14 have a symmetrical relationship with respect to the solar cell panel Pn1. At this time, for example, the fourth frame member F14 extends in the third direction (−z direction) from the fourth groove-shaped portion located in a state where the fourth outer peripheral portion is fitted, and the fourth groove-shaped portion. A fourth wall-like portion that is positioned in a state of being, and a fourth supported portion Fg4. The fourth supported portion Fg4 is a portion connected to the end portion on the third direction (−z direction) side of the fourth wall-shaped portion. In the example of FIG. 13, the fourth supported portion Fg4 is supported by the long member St1A on the long member St1A and is fixed to the long member St1A by fastening by the fastening member Fx0. positioned.

  As shown in FIGS. 13 and 14, in the first solar cell array 41, for example, a spacer portion Sp0 may be located between the long member St1A and the third frame member F13. In the example of FIGS. 13 and 14, the spacer part Sp0 is located on the long member St1A, and the third supported part Fg3 of the third frame member F13 is located on the spacer part Sp0. For example, the spacer part Sp0 may be located between the long member St1A and the fourth frame member F14. In the example of FIG. 13, the spacer part Sp0 is located on the long member St1A, and the fourth supported part Fg4 of the fourth frame member F14 is located on the spacer part Sp0.

  In such a configuration, for example, the longitudinal direction of the third frame member F13 and the fourth frame with respect to the longitudinal direction (+ y direction) of the long member St1A due to the presence of the spacer portion Sp0 on the long member St1A. The longitudinal direction of the member F14 can be relatively inclined. Thereby, for example, the height between the first frame member F11 of the first solar cell module Mo11 and the second frame member F12 of the second solar cell module Mo12 that are adjacent to each other in the first direction (+ y direction). A state in which a difference occurs can be easily realized. As a result, the state in which the first frame member F11 of the first solar cell module Mo11 is fitted to the second frame member F12 of the second solar cell module Mo12 can be easily realized.

<2-2. Third Embodiment>
In each of the above embodiments, for example, as shown in FIGS. 15A and 15B, the first frame member F11 is changed to the first frame member F11B, and the second frame member F12 is second. It may be changed to the frame member F12B. The first frame member F11B is based on the first frame member F11, except for the first overhanging portion Pr1 and the second overhanging portion Pr2, and the first convex portion Cv1 from the first fitted portion Ft1. Is also changed to a state of being located on the third direction (−z direction) side. The second frame member F12B is based on the second frame member F12, except for the third overhanging portion Pr3 and the fourth overhanging portion Pr4, and the second convex portion Cv2 from the second fitted portion Ft2. Is also changed to a state of being located on the third direction (−z direction) side.

  In the example of FIGS. 15A and 15B, for the first frame member F11B, the first wall-shaped portion W11 is in the first direction of the second portion Pa2 of the first fitted portion Ft1 ( It is positioned in a state extending from the end on the + y direction side in the third direction (−z direction). The first convex portion Cv1 is located in a state of protruding in the first direction (+ y direction) from the first wall portion Wl1 on the fourth direction (+ z direction) side of the first wall portion Wl1. ing. The first groove portion Tr1 is formed by a portion located on the third direction (−z direction) side of the first convex portion Cv1, the first protrusion Pj1, and the first wall portion W11. It is in a state that has been. The first supported portion Fg1 is positioned in a state of protruding in the second direction (−y direction) from the end portion of the first wall-shaped portion Wl1 on the third direction (−z direction) side.

  15A and 15B, for the second frame member F12B, the second wall-shaped portion W12 is in the second direction of the fifth portion Pa5 of the second fitted portion Ft2. It is located in a state of extending in the third direction (−z direction) from the end on the −y direction side. The second convex portion Cv2 is positioned in a state of projecting in the second direction (−y direction) from the second wall-shaped portion Wl2 on the fourth direction (+ z direction) side of the second wall-shaped portion Wl2. doing. The second groove portion Tr2 is formed by a portion located on the third direction (−z direction) side of the second convex portion Cv2, the second protrusion Pj2, and the second wall portion Wl2. It is in a state that has been. The second supported portion Fg2 is located in a state of protruding in the first direction (+ y direction) from the end portion of the second wall-shaped portion Wl2 on the third direction (−z direction) side.

  Here, for example, as shown in FIG. 16A and FIG. 16B, the first convex portion Cv1 may include two or more first protrusions Oh1, The second convex portion Cv2 may include two or more second projecting portions Oh2. In other words, the first convex portion Cv1 may include one or more first protrusions Oh1, and the second convex portion Cv2 includes one or more second protrusions Oh2. There may be. In the example of FIGS. 16A and 16B, the first convex portion Cv1 includes a first protrusion Oh1 that constitutes a portion on the fourth direction (+ z direction) side, and a third direction ( A first projecting portion Oh1 that constitutes a portion on the −z direction) side. In other words, the first convex portion Cv1 is configured by the two first protrusions Oh1 and the space D1 located between the two first protrusions Oh1. Further, the second convex portion Cv2 constitutes a second projecting portion Oh2 constituting a portion on the fourth direction (+ z direction) side and a portion on the third direction (−z direction) side. 2nd protrusion part Oh2. In other words, the second convex portion Cv2 is configured by the two second projecting portions Oh2 and the space D2 located between the two second projecting portions Oh2. If such a configuration is adopted, for example, the amount of the material constituting the first convex portion Cv1 and the second convex portion Cv2 can be reduced.

<2-3. Fourth Embodiment>
In the third embodiment, for example, as shown in FIGS. 17A and 17B, the first frame member F11B is changed to a first frame member F11C, and the second frame member F12B is changed to a first one. It may be changed to the two-frame member F12C. The first frame member F11C is based on the first frame member F11B, and the position of the first convex portion Cv1 is changed to the position on the first direction (+ y direction) side of the first fitted portion Ft1. It has a configuration. The second frame member F12C has the second frame member F12B as a basic configuration, and the position of the second convex portion Cv2 is changed to a position on the second direction (−y direction) side of the second fitted portion Ft2. It has a configuration.

  Here, for example, a surface (also referred to as a third surface) S3 on the fourth direction (+ z direction) side of the first portion Pa1 of the first fitted portion Ft1 and a fourth direction (also referred to as a third surface) of the first convex portion Cv1 ( The surface (also referred to as a fourth surface) S4 on the + z direction side may be directly connected. Further, for example, the fourth surface S4 may exist at the same position as the third surface S3 in the fourth direction (+ z direction). Here, for example, the fourth surface S4 may be present at a position slightly closer to the fourth direction (+ z direction) than the third surface S3. In the example of FIGS. 17A and 17B, the third surface S3 and the fourth surface S4 form one continuous plane. Here, for example, a configuration in which the first frame member F11C and the second frame member F12C have the same shape may be employed. Therefore, a surface (also referred to as a fifth surface) S5 on the fourth direction (+ z direction) side of the fourth portion Pa4 of the second fitted portion Ft2 and a fourth direction (+ z direction) of the second convex portion Cv2 ) Side surface (also referred to as a sixth surface) S6 may be directly connected. Furthermore, for example, a configuration in which the sixth surface S6 exists at the same position as the fifth surface S5 in the fourth direction (+ z direction) may be employed. Here, for example, the sixth surface S6 may be present at a position slightly closer to the fourth direction (+ z direction) than the fifth surface S5. In the example of FIG. 17A and FIG. 17B, the fifth surface S5 and the sixth surface S6 constitute one continuous plane.

  With regard to such a configuration, for example, between the adjacent solar cell modules Mo1, the first convex portion Cv1 of the first frame member F11C is inclined obliquely upward to obliquely upward, and the second groove portion Tr2 of the second frame member F12C. A first solar cell array 41 in a state of being fitted to is assumed. In the first solar cell array 41, for example, the first fitted portion of the first frame member F11 to which the fourth surface S4 as the upper surface of the first convex portion Cv1 of the first frame member F11C is directly connected. It is less likely to be lower than the third surface S3 as the upper surface of Ft1. Further, the sixth surface S6 as the upper surface of the second convex portion Cv2 of the second frame member F12C is the fifth surface S5 as the upper surface of the second fitted portion Ft2 of the second frame member F12C that is directly connected. It is harder to be higher than. Thereby, for example, when rainwater flows from the upper surface of the second solar cell module Mo12 obliquely upward toward the upper surface of the first solar cell module Mo11 obliquely downward between the adjacent solar cell modules Mo1, the first frame. Rainwater is unlikely to stay in the region between the member F11C and the second frame member F12C. As a result, for example, on the first surface Fs1 as the upper surface of the solar cell panel Pn1, dirt due to drying of rainwater hardly adheres, and white and cloudy white burn such as glass hardly occurs. Therefore, for example, in the solar cell module Mo1 and the solar cell array 4, the photoelectric conversion efficiency is unlikely to decrease.

  Here, for example, as shown in FIG. 18A and FIG. 18B, the width of the first protrusion Pj1 in the third direction (−z direction) is the first protrusion Cv1 of the first protrusion Cv1. It may be the same as the width (first width) W1 in the three directions (−z direction). Here, the first frame member F11C and the second frame member F12C have the same configuration. For this reason, the width in the third direction (−z direction) of the second protrusion Pj2 is the same as the width (first width) W1 in the third direction (−z direction) of the second convex portion Cv2. Also good. At this time, for example, as shown in FIG. 18B, the first convex portion Cv1 of the first frame member F11C is fitted in the second groove-like portion Tr2 of the second frame member F12C. Assume that it is located. In this case, the second protrusion Pj2 of the second frame member F12C is also positioned in a state of being fitted to the first groove portion Tr1 of the first frame member F11C. Thereby, for example, between the solar cell modules Mo1 adjacent in the first direction (+ y direction), the first frame member F11C and the second frame member F12C are firmly connected by fitting at two locations. Can be realized. As a result, for example, the strength against loads in various directions in the solar cell array 4 can be improved.

<2-4. Fifth Embodiment>
In the fourth embodiment, for example, as shown in FIGS. 19A and 19B, the first frame member F11C is changed to a first frame member F11D, and the second frame member F12C is changed to a first one. It may be changed to the two-frame member F12D. For example, the first frame member F11D is changed to a state in which at least a part of the first fitted portion Ft1 is located in the first convex portion Cv1, with the first frame member F11C as a basic configuration. Is. Here, the first frame member F11D and the second frame member F12D have the same configuration. For this reason, the second frame member F12D is, for example, in a state in which at least a part of the second fitted portion Ft2 is located in the second convex portion Cv2 with the second frame member F12C as a basic configuration. It has been changed.

  By the way, also in 1st Embodiment mentioned above, for example, the 1st to-be-fitted part Ft1 exists in the state located in 1st convex-shaped part Cv1, and the 2nd to-be-fitted part Ft2 is a 2nd convex. It is in a state of being located in the shape portion Cv2.

  Thus, for example, if at least a part of the first fitted portion Ft1 is located in the first convex portion Cv1, the amount of the material constituting the first frame member F11D can be reduced. Similarly, for example, if at least a part of the second fitted portion Ft2 is located in the second convex portion Cv2, the amount of the material constituting the second frame member F12D can be reduced. If such a configuration is adopted, for example, when the first solar cell array 41 is viewed in plan in the third direction (−z direction), the solar cells adjacent in the first direction (+ y direction). Between the modules Mo1, the area occupied by the frame F1 can be reduced. As a result, for example, in the solar cell array 4, the effective area can be increased and the output can be improved.

<2-5. Sixth Embodiment>
In each of the embodiments described above, for example, as shown in FIGS. 20A to 20C, the first frame members F11, F11B, F11C, and F11D are changed to the first frame members F11E, and the second The frame members F12, F12B, F12C, and F12D may be changed to the second frame member F12E. The first frame member F11E has, for example, the first frame member F11, F11B, F11C, and F11D as a basic configuration, the first width W1 of the first convex portion Cv1, and the second width of the first groove-shaped portion Tr1. W2 is changed to a first width W1G and a second width W2G which are different from each other. The second frame member F12E has, for example, the above-described second frame members F12, F12B, F12C, and F12D as a basic configuration, the first width W1 of the second convex portion Cv2 and the second width of the second groove-like portion Tr2. W2 is changed to a first width W1G and a second width W2G which are different from each other.

  In the example of FIGS. 20A to 20C, the first convex portion Cv1 protrudes from the first wall-shaped portion Wl1 in the first direction (+ y direction). Here, the width in the third direction (−z direction) of the first convex portion Cv <b> 1 is in a state of increasing as it proceeds in the first direction (+ y direction). The maximum width in the third direction (−z direction) of the first convex portion Cv1 is the first width W1G. The width of the first groove portion Tr1 in the third direction (−z direction) is a portion on the back side in the second direction (−y direction) rather than the portion opened on the first direction (+ y direction) side. In FIG. The minimum width in the third direction (−z direction) of the first groove portion Tr1 is the second width W2G. In addition, here, the first hook portion Fk1 is present at the tip portion on the fourth direction (+ z direction) side of the first convex portion Cv1. The root portion on the third direction (−z direction) side of the first convex portion Cv1, and the innermost portion on the fourth direction (+ z direction) side of the first groove portion Tr1. Has a first recess Ca1 which is recessed in the fourth direction (+ z direction).

  20A to 20C, the second convex portion Cv2 protrudes from the second wall-shaped portion Wl2 in the second direction (−y direction). Here, the width in the third direction (−z direction) of the second convex portion Cv2 is in a state of increasing as it proceeds in the second direction (−y direction). The maximum width in the third direction (−z direction) of the second convex portion Cv2 is the first width W1G. The width of the second groove portion Tr2 in the third direction (−z direction) is a portion on the back side in the first direction (+ y direction) rather than the portion opened on the second direction (−y direction) side. In FIG. The minimum width in the third direction (−z direction) of the second groove-shaped portion Tr2 is the second width W2G. Further, here, the second hook portion Fk2 is present at the tip portion on the fourth direction (+ z direction) side of the second convex portion Cv2. The root portion of the second convex portion Cv2 on the side of the third direction (−z direction) and the innermost portion of the second groove portion Tr2 on the side of the fourth direction (+ z direction). Has a second recess Ca2 that is recessed in the fourth direction (+ z direction).

  In the case of having the above configuration, for example, as shown in FIGS. 20A to 20C, the first convex portion Cv1 of the first frame member F11E is the second groove of the second frame member F12E. It can be fitted to the shape portion Tr2. Here, for example, as shown in FIG. 20C, the first convex portion Cv1 of the first frame member F11E is second between the solar cell modules Mo1 adjacent in the first direction (+ y direction). A case is assumed where the frame member F12E is positioned in a state of being fitted to the second groove-shaped portion Tr2. In this case, the first hook portion Fk1 is positioned in a state of being fitted in the second recess Ca2. Thereby, the state where the 1st frame member F11E and the 2nd frame member F12E are firmly connected may be realized. As a result, for example, the strength against loads in various directions in the solar cell array 4 can be improved.

  Here, for example, as shown in FIG. 21A to FIG. 21C, the width of the first convex portion Cv1 in the third direction (−z direction) advances in the first direction (+ y direction). The structure which is so large may not be adopted. At this time, for example, the width of the first convex portion Cv1 in the third direction (−z direction) is at least a portion on the second direction (−y direction) side than the portion on the first direction (+ y direction) side. A configuration in which is smaller can be employed. Further, for example, the width in the third direction (−z direction) of the first groove-shaped portion Tr1 is at least a part of the second direction (−y direction) side of the first direction (+ y direction) side portion. A configuration with a larger state may be employed.

  Similarly, for example, a configuration in which the width of the second convex portion Cv2 in the third direction (−z direction) increases as it proceeds in the second direction (−y direction) may not be employed. . At this time, for example, the width in the third direction (−z direction) of the second convex portion Cv2 is at least a part on the first direction (+ y direction) side than the part on the second direction (−y direction) side. A configuration in which is smaller can be employed. Further, for example, the width of the second groove portion Tr2 in the third direction (−z direction) is at least a part of the first direction (+ y direction) side of the second direction (−y direction) side portion. A configuration with a larger state may be employed.

<3. Other>
In the above embodiments, for example, the first frame members F11, F11B, F11C, F11D, and F11E and the second frame members F12, F12B, F12C, F12D, and F12E have slightly different shapes depending on, for example, a process in which a part is removed. You may have. Even in this case, for example, the shape of the first cross section of the first frame members F11, F11B, F11C, F11D, and F11E and the shape of the second cross section of the second frame members F12, F12B, F12C, F12D, and F12E are the first. A state in which there is a portion having a plane-symmetrical relationship with respect to one virtual plane Pv1 can be realized. In other words, for example, the first frame members F11, F11B, F11C, F11D, and F11E and the second frame members F12, F12B, F12C, F12D, and F12E have substantially the same shape. Also good.

  In the above embodiments, for example, both the first solar cell module Mo11 and the second solar cell module Mo12 that are adjacent in the first direction (+ y direction) are fixed to the support portion St1 or the long member St1A. There may be.

  In the third embodiment, for example, the long member St1A has a convex portion or an inclined portion on the fourth direction (+ z direction) side that plays the same role as the spacer portion Sp0 instead of the spacer portion Sp0. You may do it.

  In the third embodiment, for example, the solar cell modules Mo1 located adjacent to each other in the fifth direction (+ x direction) may be located in a connected state. Specifically, for example, the third frame member Fl3 and the fourth frame member F14 directly or other members between the solar cell modules Mo1 that are adjacent to each other in the fifth direction (+ x direction). You may be located in the state connected via. In such a case, for example, a state in which any one of the third frame member Fl3 and the fourth frame member F14 is fixed to the long member St1A may be employed. If such a structure is employ | adopted, the location where the solar cell module Mo1 is being fixed to the elongate member St1A will decrease. Thereby, when installing the solar cell array 4 with respect to the roof part 3, the location which fixes solar cell module Mo1 with respect to the elongate member St1A located on the roof part 3, for example can be reduced. As a result, for example, the construction of the solar cell array 4 can be facilitated.

  In the first embodiment and the third to sixth embodiments, for example, the third frame member F13 and the fourth frame member F14 may not be present.

  In each of the above embodiments, for example, the installation target part may be various structures other than the roof part 3. Various structures may include, for example, a wall surface of a building.

  Needless to say, all or a part of each of the above embodiments and various modifications can be combined as appropriate within a consistent range.

4 Solar cell array 41 1st solar cell array 42 2nd solar cell array 100 Solar cell device Bs1 2nd surface Cv1 1st convex part Cv2 2nd convex part Ed1 1st edge part Ed2 2nd edge part Ed3 3rd edge Part Ed4 Fourth end part Ep1 First outer peripheral part Ep2 Second outer peripheral part F1 Frame F11, F11B, F11C, F11D, F11E First frame member F12, F12B, F12C, F12D, F12E Second frame member F13 Third frame member F14 4th frame member Fg1 1st supported part Fg2 2nd supported part Fg3 3rd supported part Fg4 4th supported part Fs1 1st surface Ft1 1st to-be-fitted part Ft2 2nd to-be-fitted part Ft3 3rd to-be-supported Fitting part Fu1 Frame member unit Is1, Is2 Internal space Mo1 Solar cell module Mo11 First solar cell module Le Mo12 2nd solar cell module Oh1 1st protrusion part Oh2 2nd protrusion part Pa1 1st part Pa2 2nd part Pa3 3rd part Pa4 4th part Pa5 5th part Pa6 6th part Pn1 Solar cell panel Pv1 1st virtual plane Pr1 1st overhanging part Pr2 2nd overhanging part Pr3 3rd overhanging part Pr4 4th overhanging part Re1 1st chipping part Re2 2nd chipping part S3 3rd surface S4 4th surface S5 5th surface S6 6th surface Sp0 Spacer portion Ss1 Side surface Ss11 First side surface Ss12 Second side surface Ss13 Third side surface Ss14 Fourth side surface St1 Support portion St1A Long member Tr1 First groove portion Tr2 Second groove portion W1, W1G First width W2, W2G 2nd width Wl1 1st wall-shaped part Wl2 2nd wall-shaped part Wl3 3rd wall-shaped part

Claims (12)

A first surface, a second surface positioned in a state facing the opposite direction to the first surface, and a side surface positioned in a state in which the first surface and the second surface are connected to each other. A plate-shaped solar cell panel,
A first frame member located along a first side surface present on a side in a first direction along the first surface of the side surfaces;
A second frame member located along a second side surface that is present on the side of the second direction opposite to the first direction of the side surfaces,
The first frame member is a groove-shaped first fitted portion located in a state in which a first outer peripheral portion along the first side surface of the solar cell panel is fitted;
A first wall-like portion located in a state extending from the first fitted portion in a third direction from the first surface toward the second surface along the thickness direction of the solar cell panel;
A first groove-like portion located on the first direction side of the first wall-like portion, opened on the first direction side and located along the first longitudinal direction of the first side surface. When,
One or more first protrusions located in a state of protruding in the first direction from the first wall-like part on the fourth direction side opposite to the third direction of the first groove-like part. A first convex portion including a portion,
The second frame member is a groove-shaped second fitted portion located in a state in which a second outer peripheral portion along the second side surface of the solar cell panel is fitted,
A second wall-like portion located in a state extending from the second fitted portion in the third direction;
A second groove-like portion located on the second direction side of the second wall-like portion, opened on the second direction side and located along the second longitudinal direction of the second side surface When,
A second convex shape including one or more second projecting portions positioned in a state projecting in the second direction from the second wall-shaped portion on the fourth direction side of the second groove-shaped portion. And
The width in the third direction of the internal space of the first groove-shaped portion and the second groove-shaped portion is larger than the thickness of the solar cell panel,
Solar cell module. The solar cell module according to claim 1,
The shape of the first cross section perpendicular to the first longitudinal direction of the first frame member and the shape of the second cross section perpendicular to the second longitudinal direction of the second frame member are perpendicular to the first direction. A solar cell module having a plane-symmetrical relationship with respect to the first virtual plane. The solar cell module according to claim 1 or 2, wherein
The solar cell module, wherein in the third direction, the first width of the first convex portion and the second width of the internal space of the second groove-like portion are the same. The solar cell module according to any one of claims 1 to 3, wherein
The first fitted portion includes a first portion located in a state facing the first surface, a second portion located in a state opposed to the second surface, A third portion that connects the first portion and the second portion and is positioned facing the first side surface; and
The third surface on the fourth direction side of the first portion is directly connected to the fourth surface on the fourth direction side of the first convex portion, and is the same in the fourth direction. The solar cell module that exists in the position of. The solar cell module according to any one of claims 1 to 3, wherein
At least a portion of the first fitted portion is located in the first convex portion;
The solar cell module in which at least a part of the second fitted portion is located in the second convex portion. A solar cell module according to any one of claims 1 to 5, wherein
The first frame member is
A first overhanging portion located in a state of overhanging in the first direction from the first end on the third direction side of the first convex portion;
Located in a state of projecting in the first direction from the second end portion on the third direction side of the first groove-shaped portion and located in a state of facing the first projecting portion. And a second overhanging portion,
The second frame member is
A third projecting portion located in a state projecting in the second direction from a third end portion on the third direction side of the second convex portion;
Located in a state of projecting in the second direction from the fourth end portion on the third direction side of the second groove-shaped portion and facing the third projecting portion. A solar cell module further comprising: a fourth overhang portion. A plurality of solar cell modules according to any one of claims 1 to 6;
A support part positioned on the installation target part and positioned in a state of supporting the plurality of solar cell modules,
The plurality of solar cell modules include a first solar cell module and a second solar cell module that are positioned adjacent to each other in the first direction,
The first convex portion of the first frame member in the first solar cell module is positioned in a state of being fitted to the second groove portion of the second frame member in the second solar cell module. A solar array. The solar cell array according to claim 7, wherein
The solar cell array in which any one of the first solar cell module and the second solar cell module is positioned in a state of being fixed to the support portion. The solar cell array according to claim 8, wherein
Any one of the first frame member of the first solar cell module and the second frame member of the second solar cell module is positioned in a state of being fixed to the support portion. , Solar cell array. The solar cell array according to claim 8, wherein
In each of the plurality of solar cell modules, the side surface is a direction orthogonal to the first direction and is present on the fifth direction side along the first surface; and A fourth side surface present on the side of the sixth direction opposite to the fifth direction,
Each of the plurality of solar cell modules has a third frame member positioned along the third side surface, and a fourth frame member positioned along the fourth side surface,
The support portion includes a long member having a longitudinal direction along the first direction,
The first wall portion of the first frame member in the first solar cell module has a first chipped portion that is located in a state where a space in which a part of the long member is located is formed. Have
The second wall-shaped portion of the second frame member in the second solar cell module has a second chipped portion located in a state where a space in which a part of the long member is located is formed. Have
The third frame member is a solar cell array positioned along the long member on the fourth direction side of the long member. The solar cell array according to claim 10, wherein
The solar cell array further provided with the spacer part located between the said elongate member and the said 3rd frame member. A first surface, a second surface positioned in a state facing the opposite direction to the first surface, and a side surface positioned in a state in which the first surface and the second surface are connected to each other. A frame member unit for a solar cell module to be arranged along the side surface of the plate-shaped solar cell panel,
A first frame member for placement along a first side of the side surfaces;
A second frame member arranged along a second side surface located on the side opposite to the first side surface of the side surfaces,
The first frame member is a groove-shaped first fitted portion capable of fitting a first outer peripheral portion along the first side surface of the solar cell panel;
A first wall shape located in a state extending from the first fitted portion in a first width direction orthogonal to both the first longitudinal direction and the first depth direction in the first fitted portion. And
A first groove-like portion located on the first depth direction side of the first wall-like portion, open on the first depth direction side and located along the first longitudinal direction;
One or more of the first groove-like portions located in a state of projecting in the first depth direction from the first wall-like portion on the second width direction side opposite to the first width direction. A first convex portion including a first protrusion,
The second frame member is a groove-shaped second fitted portion capable of fitting a second outer peripheral portion along the second side surface of the solar cell panel;
A second wall shape located in a state extending from the second fitted portion in a third width direction perpendicular to both the second longitudinal direction and the second depth direction in the second fitted portion. And
A second groove-shaped portion that is open on the second depth direction side on the second depth direction side of the second wall-shaped portion and is positioned along the second longitudinal direction;
One or more of the second groove-shaped portions positioned in a state of projecting in the second depth direction from the second wall-shaped portion on the side of the fourth width direction opposite to the third width direction. A second convex portion including a second protrusion,
In the first width direction, the width of the internal space of the first groove-shaped portion is larger than the width of the internal space of the first fitted portion.
A frame member unit in which the width of the internal space of the second groove-shaped portion is larger than the width of the internal space of the second fitted portion in the third width direction.

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