Solar cell module frame, solar cell module fixture, and solar cell module mounting structure

Abstract

To provide a frame, a fixture, and a thick mounting structure of a solar cell module, which enable the frame of the solar cell module to be assembled without using screws and which enable water to be stopped.SOLUTION: In the inclination direction frame member 3, the end of the locking blade 10 on the side connected to the downstream direction frame member 5 is formed vertically from the tip end of the inclination direction frame body 8 toward the outer side of the locking blade 10. Both end portions of the other portion are obliquely formed at 45 degrees so that the outer side is long, both end portions of the water-side frame member 4 are obliquely formed at 45 degrees so that the outer side is long, and at least the water-downstream-side support blade 15 and the water-downstream-side frame main body portion 14 are obliquely formed at 45 degrees so that the outer side is long. By inserting the connecting member 6 into the inclined direction frame body 8, the upstream side frame body 14, and the downstream side frame body 21, the inclined direction frame member 3 and the upstream side frame member 4, and the inclined direction frame member 3 and the downstream side frame member 5 are connected and assembled.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a solar cell module frame for mounting a solar cell module on a roof, a solar cell module mounting fixture, and a solar cell module mounting structure. [Background technology]

[0002] An increasing number of homes are being fitted with solar water heaters and solar cell modules used in photovoltaic power generation systems that utilize the space on the roofs of buildings such as houses to effectively utilize the natural energy of sunlight. Photovoltaic power generation systems generate electricity using solar cell modules, sell surplus electricity to the power company, and purchase electricity from the power company at night or on rainy days when there is little electricity generated. These systems have become widespread due to their economic benefits in addition to their energy-saving effects.

[0003] There are three main methods for installing solar cell modules for use in a solar power generation system on a roof: the first is to attach a solar cell module stand to the roof and then install the solar cell module on the stand (see, for example, Patent Document 1), the second is to cover the roof with a solar cell-integrated roofing material, which is a roofing material such as a slate-type flat roofing tile or an aluminum-zinc alloy plated steel sheet, on which a solar cell module is attached (see, for example, Patent Documents 2 and 3), and the third is to cover the roof with a solar cell module directly on the roof underlayment instead of a roofing material (see, for example, Patent Document 4).

[0004] The installation method of Patent Document 1 has the problem of damaging the roofing material because the mounting frame is installed on the roofing material. Also, because the mounting frame is installed on the roofing material and the solar cell module is then attached to that, there is also the problem of reduced earthquake resistance due to the weight. The installation methods of Patent Documents 2 and 3 have the problem of requiring a lot of man-hours to attach the solar cell module to the roofing material. Another problem is that the roofing material and the solar cell module have different lifespans, resulting in high maintenance costs.

[0005] The installation method of Patent Document 4 solves the above problem, but because the solar cell modules also function as roofing materials, a specially shaped frame with a waterproof function is used for the solar cell modules. Such specially shaped frames have traditionally been assembled using screws. In the frame described in Patent Document 4, the vertical frame portion 3 and the horizontal frame portion 4 are connected by abutting the end faces of the upper frame portion 4a and the lower frame portion 4b against the side surfaces of the legs 10 of the left frame portion 3a and the right frame portion 3b, respectively, and inserting screws 14 into the screw holes 13 and threading them into the tapping holes 25 of the upper frame portion 4a and the tapping holes 39 of the lower frame portion 4b. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-40462 [Patent Document 2] Japanese Patent Application Publication No. 5-55618 [Patent Document 3] Japanese Patent Application Laid-Open No. 2004-3336 [Patent Document 4] Patent No. 5948519 Summary of the Invention [Problem to be solved by the invention]

[0007] However, when screws are used to assemble the frames of solar cell modules, many manual steps are required on the production line, resulting in poor productivity in terms of quantity, quality, and cost.To further popularize solar cell modules, which also serve as roofing materials, it is urgent to fully automate each process on the production line.

[0008] Therefore, the present invention has been made in consideration of the above-mentioned problems, and aims to provide a solar cell module frame, a solar cell module mounting fixture, and a solar cell module mounting structure that can assemble a solar cell module frame without using screws and that can also waterproof the spaces between the solar cell modules when attached to a roof. [Means for solving the problem]

[0009] In order to solve the above-mentioned problems, the solar cell module frame is a solar cell module frame for attaching a plurality of solar cell modules to a sheathing board, and includes an inclined frame member that is to be arranged along the inclined direction of the sheathing board, an above-water frame member that is to be arranged above water in a direction perpendicular to the inclined direction of the sheathing board in relation to the solar cell modules that are to be arranged adjacent to the inclined direction of the sheathing board, and an above-water frame member that is to be arranged above water in a direction perpendicular to the inclined direction of the sheathing board in relation to the solar cell modules that are to be arranged adjacent to the inclined direction of the sheathing board. and connecting members that are L-shaped in a top view for connecting the inclined frame member and the abovewater frame member, and the inclined frame member and the belowwater frame member, and the inclined frame member has an inclined frame main body part that has a rectangular parallelepiped shape with the interior hollow in the longitudinal direction, and a locking wing that is provided along the longitudinal direction of the inclined frame main body part and protrudes outward from the inclined frame main body part when assembled, and locks the solar cell module to a mounting fixture that mounts the solar cell module to the sheathing board, and and an inclined support wing that is provided to protrude on the opposite side from the locking wing and supports the edge of the solar cell module body, and the above-water direction frame member comprises an above-water side frame main body part having a rectangular parallelepiped shape with the interior hollow in the longitudinal direction, an above-water side water stopping wing that is provided to protrude along the longitudinal direction of the above-water side frame main body part to a side that will be outward from the above-water side frame main body part when assembled, for stopping water between other solar cell modules that are installed adjacently along the inclined direction of the sheathing board, and a water stopping wing that is provided to protrude on the opposite side from the above-water side water stopping wing along the longitudinal direction of the above-water side frame main body part and for stopping water between other solar cell modules that are installed adjacently along the inclined direction of the sheathing board. the underwater frame member has an underwater-side frame main body part having a rectangular parallelepiped shape with the interior hollow in the longitudinal direction, an underwater-side water stopping wing provided along the longitudinal direction of the underwater-side frame main body part to protrude on the side that will be outward from the underwater-side frame main body part when assembled, for stopping water between other solar cell modules installed adjacently along the inclination direction of the sheathing, and an underwater-side support wing provided along the longitudinal direction of the underwater-side frame main body part to protrude on the side opposite to the underwater-side water stopping wing and to support the edge of the solar cell module main body,The abovewater side water stop wing is provided at the same height as the position corresponding to the locking wing, and the belowwater side water stop wing is provided below the position corresponding to the abovewater water stop wing by the thickness of the abovewater water stop wing, and both ends of the inclined frame member are formed at an angle of 45 degrees so that the locking wing side is long, except for the end of the locking wing on the side connected to the belowwater direction frame member, and the end of the locking wing on the side connected to the belowwater direction frame member is formed from the tip of the side connected to the belowwater direction frame member of the inclined frame main body towards the side of the locking wing opposite to the inclined direction frame main body. The above-water side frame member is formed vertically, and both ends of the above-water side frame member are formed at a 45-degree angle so that the above-water side water stop wing side is longer, and both ends of the below-water side frame member are formed at a 45-degree angle so that at least the below-water side support wing and the below-water side frame main body part are longer on the above-water side water stop wing side, and the inclined direction frame member and the above-water side frame member, and the inclined direction frame member and the below-water side frame member are connected and assembled by inserting the connecting members into the inside of the inclined direction frame main body part, the above-water side frame main body part, and the below-water side frame main body part.

[0010] Furthermore, it is preferable that the frame of the above-mentioned solar cell module is composed of upper and lower support wings, in which the inclined support wing, the abovewater support wing, and the belowwater support wing are used to clamp the edge of the solar cell module body from the top and bottom.

[0011] Furthermore, it is preferable that the frame of the solar cell module described above is provided with a plurality of the locking wings.

[0012] The frame of the above-mentioned solar cell module preferably has a second above-water side water stop wing that is arranged below the above-water side water stop wing along the longitudinal direction of the above-water side frame main body, for stopping water between it and other solar cell modules that are installed adjacently along the inclination direction of the sheathing, and a second below-water side water stop wing that is arranged below the below-water side water stop wing along the longitudinal direction of the below-water side frame main body and above the position corresponding to the above-water water stop wing by the thickness of the second above-water water stop wing, for stopping water between it and other solar cell modules that are installed adjacently along the inclination direction of the sheathing.

[0013] Furthermore, it is preferable that the frame of the above-mentioned solar cell module is provided with a gutter section to catch rainwater that enters through the gap between the above-water water stop wing and the below-water water stop wing of other solar cell modules when the frame is installed adjacent to the side of the underwater frame main body section along the inclination direction of the sheathing board.

[0014] Furthermore, it is preferable that the frame of the above-mentioned solar cell module has convex portions on the inner surface near both ends of the inclined frame main body portion, near both ends of the above-water frame main body portion, and near both ends of the below-water frame main body portion, and that when the connecting member is inserted into the inside of the inclined frame main body portion, the above-water frame main body portion, and the below-water frame main body portion to connect the inclined frame member and the above-water frame member, and the inclined frame member and the below-water frame member, grooves into which the convex portions fit are provided at positions corresponding to the convex portions.

[0015] In order to solve the above-mentioned problems, the solar cell module of the present invention is a solar cell module assembled using the above-mentioned solar cell module frame, wherein one opposing edge of the solar cell module body is supported by the inclined support wing of the first inclined frame member and the second inclined frame member, respectively, and the other opposing edge of the solar cell module body is supported by the above-water support wing and the below-water support wing, respectively, and the connecting members are inserted into the inclined frame body portion, the above-water side frame body portion, and the below-water side frame body portion, and one end of the first inclined frame member and one end of the above-water side frame member, the other end of the first inclined frame member and one end of the below-water side frame member, one end of the second inclined frame body portion and the other end of the above-water side frame member, and the other end of the second inclined frame member and the other end of the below-water side frame member are connected with their end faces, each formed at a 45-degree angle, butted together.

[0016] In order to solve the above problems, the solar cell module mounting fixture of the present invention is a solar cell module mounting fixture for attaching the above-mentioned solar cell module to the sheathing board, and is characterized in that it has a long base that is fixed to the sheathing board, an engaging portion that is arranged above the base along the longitudinal direction of the base and engages the engaging wing of the frame, a holding portion that is arranged along the longitudinal direction in the center of the short side of the base for holding the engaging portion, and support portions that are erected along the longitudinal direction near both ends of the base for supporting the solar cell module from below, and the engaging portion is arranged on the upper part of both short side surfaces of the holding portion.

[0017] In the above-described solar cell module mounting fixture, it is preferable that at least the upper surface of the base is inclined downward from the support portion toward the holding portion.

[0018] In the above-described solar cell module mounting fixture, the base preferably has a layer structure.

[0019] Furthermore, it is preferable that the end faces in the longitudinal direction of the mounting fixture for the solar cell module are formed obliquely when viewed from the side in the longitudinal direction.

[0020] In order to solve the above problems, the solar cell module mounting structure of the present invention is a solar cell module mounting structure in which the above solar cell module is mounted to the sheathing board using the above solar cell module mounting fixture, wherein a plurality of the solar cell module mounting fixtures are arranged at predetermined intervals along the inclination direction of the sheathing board, the locking wings of the first inclined direction frame member are locked from below to the locked portion of one of the solar cell module mounting fixtures, and the locking wings of the second inclined direction frame member are locked from below to the locked portion of another solar cell module mounting fixture arranged adjacent to the one solar cell module mounting fixture. and the solar cell module is supported from below by the support part, and the two solar cell modules arranged adjacent to each other in the inclined direction of the sheathing are arranged so that the abovewater water stop wing of the abovewater solar cell module and the belowwater water stop wing of the belowwater solar cell module are overlapping, and the belowwater side of the abovewater water stop wing of the abovewater solar cell module and the end face of the engaging wing of the belowwater solar cell module are butted together.

[0021] Furthermore, in order to solve the above-mentioned problems, the solar cell module mounting structure of the present invention is a solar cell module mounting structure in which the above-mentioned solar cell module mounting fixture is used to mount the above-mentioned solar cell module to the sheathing board, wherein a plurality of the solar cell module mounting fixtures are arranged at predetermined intervals along the inclination direction of the sheathing board, both ends of the underwater side water stop wing are formed perpendicularly from the tip of the underwater side frame main body part toward the side of the underwater side water stop wing opposite to the underwater side frame main body part, the locking wings of the first inclined direction frame member are locked from above to the locked parts of the mounting fixtures of one of the solar cell modules, and the locking wings of the second inclined direction frame member are locked from above to the locked parts of the mounting fixtures of one of the solar cell modules, The solar cell module is engaged from above with the engaging portion of the mounting fixture of another solar cell module arranged adjacent to the mounting fixture of the module, and the solar cell module is supported from below by the support portion, and the two solar cell modules arranged adjacent to each other in the inclined direction of the sheathing are characterized in that the abovewater water stop wing of the abovewater solar cell module and the belowwater water stop wing of the belowwater solar cell module are arranged in an overlapping state, and the belowwater side of the abovewater water stop wing of the abovewater solar cell module and the end face of the locking wing of the belowwater solar cell module that is connected to the belowwater frame member are arranged in a butted state. [Effects of the Invention]

[0022] According to the present invention, it is possible to provide a solar cell module frame, a solar cell module mounting fixture, and a solar cell module mounting structure that can assemble a solar cell module frame without using screws and that can also waterproof the spaces between solar cell modules when attached to a roof. [Brief explanation of the drawings]

[0023] [Figure 1] 1A and 1B are diagrams showing an inclined frame member that constitutes the frame of a solar cell module according to an embodiment of the present invention, in which (A) is a perspective view, (B) is a cross-sectional view in the short direction, and (C) is a side view of (A) as seen from the front of the page. [Figure 2]1A and 1B are diagrams showing the above-water frame member that constitutes the frame of a solar cell module according to an embodiment of the present invention, where (A) is an oblique view, (B) is a cross-sectional view in the short direction, and (C) is a side view of (A) as seen from the front of the page. [Figure 3] 1A and 1B are diagrams showing the underwater frame member that constitutes the frame of a solar cell module according to an embodiment of the present invention, where (A) is an oblique view, (B) is a cross-sectional view in the short direction, and (C) is a side view of (A) as seen from the front of the page. [Figure 4] FIG. 2 is a perspective view showing a connecting member that constitutes a frame of the solar cell module according to the embodiment of the present invention. [Figure 5] 1A to 1C are explanatory diagrams illustrating an assembly method for assembling a solar cell module using a frame of the solar cell module according to an embodiment of the present invention. [Figure 6] 1A to 1C are explanatory diagrams illustrating an assembly method for assembling a solar cell module using a frame of the solar cell module according to an embodiment of the present invention. [Figure 7] 1 is a top view showing a solar cell module assembled using a solar cell module frame according to an embodiment of the present invention. FIG. [Figure 8] FIG. 1 is a perspective view showing a solar cell module mounting fixture for mounting a solar cell module assembled using a solar cell module frame according to an embodiment of the present invention to a sheathing board. [Figure 9] 11 is a cross-sectional view showing a mounting structure in which a solar cell module assembled using a frame of a solar cell module according to an embodiment of the present invention is mounted on a sheathing board using a mounting fixture, and is a cross-sectional view taken along the line AA' in FIG. [Figure 10] 10 is an explanatory diagram illustrating a method for attaching a solar cell module assembled using a solar cell module frame according to an embodiment of the present invention to a sheathing board using a fixture. FIG. [Figure 11] FIG. 1A is a perspective view showing the shape of the end of a mounting fixture for a solar cell module according to an embodiment of the present invention, and FIG. 1B is a longitudinal side view showing the structure of the joint that joins the ends of the mounting fixture for a solar cell module according to an embodiment of the present invention. [Figure 12] 11 is a cross-sectional view showing a state in which a solar cell module assembled using a frame for a solar cell module according to an embodiment of the present invention is attached to a sheathing board using a fixture, and is a cross-sectional view along BB' in FIG. [Figure 13] 11 is a cross-sectional view showing a mounting structure in which a solar cell module assembled using a frame of a solar cell module according to an embodiment of the present invention is mounted on a sheathing board using a mounting fixture, and is a cross-sectional view taken along CC' in FIG. [Figure 14] (A) is an oblique view showing the underwater frame member that constitutes the frame of a solar cell module according to another embodiment of the present invention, and (B) is a top view showing a solar cell module assembled using a frame including the underwater frame member of (A). [Figure 15] FIG. 10 is a cross-sectional view showing a mounting structure in which a solar cell module assembled using a solar cell module frame according to another embodiment of the present invention is mounted on a sheathing board using a mounting fixture. [Figure 16] 10A and 10B are diagrams showing the frame of a solar cell module according to another embodiment of the present invention, where (A) is a cross-sectional view of an inclined frame member, (B) is a cross-sectional view of an above-water frame member, and (C) is a cross-sectional view of an below-water frame member. [Figure 17] FIG. 10 is a cross-sectional view showing a mounting structure in which a solar cell module of the present invention is mounted on a sheathing board using a mounting fixture for a solar cell module according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, embodiments of the present invention will be described in detail.

[0025] 6, 7 and 11, the frame 2 of the solar cell module 1 of this embodiment has an inclined frame member 3 that will be arranged along the inclination direction of the subfloor N, an above-water frame member 4 that will be arranged in a direction perpendicular to the inclination direction of the subfloor N and on the above-water side in relation to the solar cell module 1 that will be arranged adjacent to the inclination direction of the subfloor N, an below-water frame member 5 that will be arranged in a direction perpendicular to the inclination direction of the subfloor N and on the below-water side in relation to the solar cell module 1 that will be arranged adjacent to the inclination direction of the subfloor N, and a connecting member 6 that is L-shaped when viewed from above for connecting the inclined frame member 3 and the above-water frame member 4, and the inclined frame member 3 and the below-water frame member 5.

[0026] 1, the inclined frame member 3 has an inclined frame main body 8 that, when assembled, will form a frame body that circumferentially surrounds the solar cell module main body 7 together with an abovewater frame main body 14 and an belowwater frame main body 21, which will be described later, and an inclined support wing 9 that supports the edge of the solar cell module main body 7 is provided on the upper side of the inclined frame main body 8. In addition, an engagement wing 10 that engages with a fixture for attaching the solar cell module 1 to a sheathing board N is provided on the upper side of the inclined frame main body 8 on the side opposite to the inclined support wing 9.

[0027] The inclined-direction frame main body 8 has a long rectangular parallelepiped shape, and a hollow section 11 having a similar shape to the outer shape is provided inside, open in the longitudinal direction. A partition section 12 is provided in the hollow section 11 to divide the hollow section 11 into an upper and lower section. The partition section 12 is provided in a position where the outer surface of the upper surface of the connecting member 6 abuts against the inner surface of the partition section 12 when the connecting member 6 is inserted into the lower hollow section 11 with the inner surface of the bottom surface of the inclined-direction frame main body 8 and the outer surface of the bottom surface of the connecting member 6 overlapping each other. Note that the partition section 12 is not necessarily provided; if the partition section 12 is not provided, it is sufficient that the height of the connecting member 6 be such that the outer surface of the upper surface of the connecting member 6 abuts against the inner surface of the upper surface of the inclined-direction frame main body 8 when the connecting member 6 is inserted into the hollow section 11. However, it is preferable to provide the partition section 12 to match the height of the connecting member 6 because reducing the height of the connecting member 6 contributes to weight reduction.

[0028] It is preferable that protrusions 13 be provided on the inner surfaces of the side surfaces that will be on the inside during assembly near both ends of the inclined frame main body 8. There is no particular limitation on the number of protrusions 13, but in this embodiment, four protrusions 13 are provided on each side surface. Note that in this embodiment, the protrusions 13 are provided on the side surfaces that will be on the inside during assembly of the inclined frame main body 8, but they may be provided on any surface that comes into contact with the connecting member 6.

[0029] The shape and size of the protrusion 13 are not particularly limited as long as, during assembly, the connecting member 6 can be inserted into the hollow portion 11 of the inclined frame main body 8 without getting caught on the protrusion 13, and after assembly, the protrusion 13 fits into a groove 31 (see Figure 4) provided at a corresponding position on the connecting member 6, making it difficult for the connecting member 6 to fall out of the hollow portion 11 of the inclined frame main body 8, but a dome-shaped shape is preferable.

[0030] The method for forming the protrusions 13 is not particularly limited, but it is preferable to provide them by stamping them from the outer side surface of the inclined direction frame main body 8 with a pin.

[0031] The size of the inclined direction frame main body 8 is not particularly limited, but it is preferable that the height is 25 to 30 mm and the width is 10 to 15 mm.

[0032] The inclination support wings 9 have a flat plate shape and are provided so that the surface facing the solar cell module 1 is approximately vertical from the side surface of the inclination frame main body 8 toward the inside during assembly. In other words, the inclination support wings 9 are provided so as to protrude on the side opposite the locking wings 10. The inclination support wings 9 preferably consist of upper support wings 9a and lower support wings 9b for clamping the edge of the solar cell module main body 7 from the top and bottom. In this embodiment, the upper support wings 9a are provided so that their top surface is approximately flush with the top surface of the inclination frame main body 8.

[0033] The distance between the upper support wing 9a and the lower support wing 9b is not particularly limited, but is preferably about 10 mm.

[0034] The size of the inclined direction support wing 9 is not particularly limited, but it is preferable that the width is about 10 mm.

[0035] The locking wings 10 have a flat plate shape and are provided on the side surfaces of the inclined frame main body 8 so that the surface that locks onto the locking portions 43 (see FIG. 10) of the mounting fixture is approximately vertical and faces outward during assembly. From the perspective of stably installing the solar cell module 1, it is preferable to provide multiple locking wings 10, and in this embodiment, two are provided.

[0036] In this embodiment, the first-stage locking wing 10a is provided so that its upper surface is substantially flush with the upper surface of the inclined frame main body 8. The second-stage locking wing 10b is provided below the first-stage locking wing 10a at a predetermined distance from the first-stage locking wing 10a. The distance between the first-stage locking wing 10a and the second-stage locking wing 10b is not particularly limited as long as it allows the first-stage locking wing 10a and the second-stage locking wing 10b to be locked to the locking portions 43 of the mounting fixtures, respectively. However, it is preferable that the second-stage locking wing 10b be provided at a position where, after the solar cell module 1 is assembled, the portion where the end face of the inclined frame member 3 and the end face of the underwater frame member 5 butt against each other does not interfere with the locking portions 43 of the mounting fixtures that lock the second-stage locking wing 10b, and a distance of approximately 10 mm is particularly preferable.

[0037] The size of the locking wing 10 is not particularly limited, but it is preferable that the width is about 10 mm.

[0038] Referring to Figures 1(A) and 7, the inclined frame member 3 has both ends formed at a 45-degree angle so that the locking wing 10 side is longer, except for the end on the side connected to the underwater frame member 5 of the locking wing 10, and the end on the side connected to the underwater frame member 5 of the locking wing 10 is formed vertically from the tip of the side connected to the underwater frame member 5 of the inclined frame main body 8 toward the side of the locking wing 10 opposite the inclined frame main body 8.

[0039] To form the end of the retaining wing 10 that is connected to the underwater frame member 5 vertically from the tip of the inclined frame main body 8 that is connected to the underwater frame member 5 toward the side opposite the inclined frame main body 8 of the retaining wing 10, the entire inclined frame member 3 is cut at a 45-degree angle at both ends so that the retaining wing 10 side is longer, and then the part of the retaining wing 10 that protrudes from the tip of the inclined frame main body 8 is cut out vertically toward the side opposite the inclined frame main body 8.

[0040] There are no particular limitations on the material of each part constituting the inclined frame member 3, but it is preferable to use a lightweight metal such as aluminum that has strength, corrosion resistance, and weather resistance. There are also no particular limitations on the method for forming each part, but it is preferable to form them by extrusion molding.

[0041] Referring to Figure 2, the above-water side frame member 4 has an above-water side frame main body portion 14 which, when assembled, together with the inclined frame main body portion 8 and the below-water side frame main body portion 21 (see Figure 3) will form a frame body that surrounds the solar cell module main body 7 from the circumferential direction, and above-water side support wings 15 are provided on the upper side of the above-water side frame main body portion 14 to support the edge of the solar cell module main body 7.

[0042] Additionally, a first above-water side water stop wing 16 is provided on the upper side of the above-water side frame main body 14 opposite to the above-water side support wing 15 to stop water from flowing between it and other solar cell modules 1 installed adjacently along the inclination direction of the sheathing board N. The first above-water side water stop wing 16 corresponds to the "above-water side water stop wing" in the claims.

[0043] In addition, below the first above-water side water stop wing 16 on the lower side of the above-water side frame main body 14, a second above-water side water stop wing 17 is provided to seal the water between the first above-water side water stop wing 16 and the solar cell module 1.

[0044] The above-water-side frame main body 14 has a long rectangular parallelepiped shape, and inside it is a hollow section 18 of similar shape to the outer shape that is open in the longitudinal direction. A partition 19 is provided in the hollow section 18 to divide the hollow section 18 into an upper and lower section. The partition 19 is located so that when the inner surface of the bottom of the above-water-side frame main body 14 and the outer surface of the bottom of the connecting member 6 are overlapped and the connecting member 6 is inserted into the lower hollow section 18, the outer surface of the upper surface of the connecting member 6 abuts against the inner surface of the partition 19. Note that the partition 19 is not necessarily provided; if the partition 19 is not provided, it is sufficient that the height of the connecting member 6 be such that the outer surface of the upper surface of the connecting member 6 abuts against the inner surface of the upper surface of the above-water-side frame main body 14 when the connecting member 6 is inserted into the hollow section 18. However, it is preferable to provide the partition 19 to match the height of the connecting member 6 because reducing the height of the connecting member 6 contributes to weight reduction.

[0045] It is preferable that protrusions 20 be provided on the inner surfaces of the side surfaces that will be on the inside during assembly near both ends of the above-water side frame main body 14. There is no particular limitation on the number of protrusions 20, but in this embodiment, four protrusions 20 are provided on each side. Note that in this embodiment, the protrusions 20 are provided on the side surfaces that will be on the inside during assembly of the above-water side frame main body 14, but they may be provided on any surface that comes into contact with the connecting member 6.

[0046] The shape and size of the convex portion 20 are not particularly limited as long as, during assembly, the connecting member 6 can be inserted into the hollow portion 11 of the above-water side frame main body portion 14 without getting caught on the convex portion 20, and after assembly, the convex portion 20 fits into the groove 31 provided at the corresponding position of the connecting member 6, making it difficult for the connecting member 6 to fall out of the hollow portion 18 of the above-water side frame main body portion 14, but a dome-shaped shape is preferable.

[0047] The method for forming the protrusions 20 is not particularly limited, but it is preferable to form them by stamping them with a pin from the outer surface of the side of the above-water frame main body 14.

[0048] The size of the above-water frame main body 14 is not particularly limited, but it is preferable that the height is 25 to 30 mm and the width is 10 to 15 mm, and it is preferable that the size is the same as that of the inclined-direction frame main body 8.

[0049] The abovewater side support wing 15 has a flat plate shape and is provided so that the surface facing the solar cell module 1 is approximately vertical from the side surface of the abovewater side frame main body 14 toward the inside during assembly. In other words, the abovewater side support wing 15 is provided to protrude on the side opposite the first abovewater side water stop wing 16 and the second abovewater side water stop wing 17. The abovewater side support wing 15 preferably consists of an upper stage support wing 15a and a lower stage support wing 15b for sandwiching the edge of the solar cell module main body 7 from above and below. In this embodiment, the upper stage support wing 15a is provided so that its upper surface is approximately flush with the upper surface of the abovewater side frame main body 14.

[0050] The distance between the upper support wing 15a and the lower support wing 15b is not particularly limited, but is preferably about 10 mm.

[0051] The size of the above-water support wing 15 is not particularly limited, but it is preferable that the width is around 10 mm.

[0052] The first abovewater side water stop vane 16 has a flat plate shape and is provided on the side of the abovewater side frame main body 14 so that the surface that overlaps with the first belowwater side water stop vane 23 is approximately vertical, facing outward during assembly. The same number of first abovewater side water stop vanes 16 as the locking vanes 10 are preferably provided, and in this embodiment, two are provided: a first-stage abovewater side water stop vane 16a and a second-stage abovewater side water stop vane 16b. Note that the second-stage abovewater side water stop vane 16b is not necessarily provided, but by providing it, rainwater that leaks through the gap between the first-stage abovewater side water stop vane 16a and the first belowwater side water stop vane 23 will flow down the second-stage abovewater side water stop vane 16b and fall more reliably into the gutter section 25.

[0053] The second above-water side water stop wing 17 also has a flat plate shape and is arranged so that the surface that overlaps with the second below-water side water stop wing 24 is approximately vertical, facing outward from the side of the above-water side frame main body 14 when assembled.

[0054] When installing the solar cell module 1, it is preferable that the first abovewater-side water stop vane 16 and the second abovewater-side water stop vane 17 overlap as closely as possible with the first belowwater-side water stop vane 23 and the second belowwater-side water stop vane 24 of the solar cell module 1 installed belowwater. However, the smaller the clearance between the abovewater-side water stop vanes 16, 17 and the belowwater-side water stop vanes 23, 24, the more difficult it is to fit the first belowwater-side water stop vane 23 and the second belowwater-side water stop vane 24 of the solar cell module 1 installed abovewater into the first belowwater-side water stop vane 23 and the second belowwater-side water stop vane 24 of the solar cell module 1 installed belowwater. Therefore, if a taper (not shown) is provided at the tip of the surface of the first abovewater-side water stop vane 16 and the second abovewater-side water stop vane 17 that comes into contact with the first belowwater-side water stop vane 23 and the second belowwater-side water stop vane 24, clearance can be secured only at the tip, making installation easier.

[0055] In this embodiment, the first tier of abovewater water stop wing 16a is provided so that its upper surface is approximately flush with the upper surface of the inclined frame main body 8. Furthermore, the abovewater water stop wing 16 is provided at the same height as the corresponding position of the locking wing 10. The position of the second abovewater water stop wing 17 is not particularly limited, but by providing it at the lowest part of the abovewater frame main body 14 as in this embodiment, the load that the lower tier solar cell module 1 receives from the upper tier solar cell module 1 installed adjacent to it along the inclined direction of the sheathing board N can be supported evenly.

[0056] The size of the first above-water side water stop vane 16 and the second above-water side water stop vane 17 is not particularly limited, but it is preferable that the width is about 10 mm.

[0057] Referring to Figs. 2(A) and 7, the above-water side frame member 4 has both ends formed at an angle of 45 degrees so that the above-water side water stop wing 16, 17 side is longer.

[0058] There are no particular restrictions on the materials used for the components of the above-water frame member 4, but it is preferable to use a lightweight metal such as aluminum that is strong, corrosion-resistant, and weather-resistant. There are also no particular restrictions on the molding method for the components, but extrusion molding is preferred.

[0059] Referring to Figure 3, the underwater frame member 5 has an underwater frame main body portion 21 which, together with the inclined frame main body portion 8 and the abovewater frame main body portion 14, when assembled, forms a frame body that surrounds the solar cell module main body 7 from the circumferential direction, and underwater support wings 22 are provided on the upper side of the underwater frame main body portion 21 to support the edge of the solar cell module main body 7.

[0060] Furthermore, a first underwater water stop wing 23 is provided on the upper side of the underwater frame main body 21 opposite the underwater support wing 22, below the position corresponding to the first upper tier abovewater water stop wing 16a by the thickness of the first upper tier abovewater water stop wing 16a, for stopping water between it and other solar cell modules 1 installed adjacently along the inclination direction of the sheathing board N. The first underwater water stop wing 23 corresponds to the "underwater water stop wing" in the claims.

[0061] In addition, below the first underwater water stop wing 23 on the lower side of the underwater frame main body 21 and above the position corresponding to the abovewater water stop wing 16 by the thickness of the second abovewater water stop wing 16, a second underwater water stop wing 24 is provided to seal the water between the solar cell module 1 together with the first underwater water stop wing 23.

[0062] Furthermore, on the side of the underwater side frame main body 21, between the first underwater side water stop wing 23 and the second underwater side water stop wing 24, a gutter section 25 is provided along the longitudinal direction of the underwater side frame main body 21 to receive rainwater that enters through the gap between the first abovewater side water stop wing 16 and the first belowwater side water stop wing 23 of the other solar cell module 1 when they are installed adjacent to each other along the inclination direction of the first subfloor N.

[0063] The underwater-side frame main body 21 has a long rectangular parallelepiped shape, and a hollow section 26 of similar shape to the outer shape is provided inside, open in the longitudinal direction. A partition 27 is provided in the hollow section 26 to divide the hollow section 26 into upper and lower sections. The partition 27 is located so that the outer surface of the upper surface of the connecting member 6 abuts against the inner surface of the partition 27 when the connecting member 6 is inserted into the lower hollow section 26 with the inner surface of the bottom of the underwater-side frame main body 21 overlapping the outer surface of the bottom of the connecting member 6. Note that the partition 27 is not necessarily provided; if the partition 27 is not provided, it is sufficient that the height of the upper outer surface of the connecting member 6 abuts against the inner surface of the upper surface of the underwater-side frame main body 21 when the connecting member 6 is inserted into the hollow section 26. However, it is preferable to provide the partition 27 to match the height of the connecting member 6 because reducing the height of the connecting member 6 contributes to weight reduction.

[0064] It is preferable that protrusions 28 be provided on the inner surfaces of the side surfaces that will be on the inside during assembly near both ends of the underwater-side frame main body 21. There is no particular limitation on the number of protrusions 28, but in this embodiment, four protrusions 28 are provided on each side. Note that in this embodiment, the protrusions 28 are provided on the side surfaces that will be on the inside during assembly of the underwater-side frame main body 21, but they may be provided on any surface that comes into contact with the connecting member 6.

[0065] The shape and size of the convex portion 28 are not particularly limited as long as, during assembly, the connecting member 6 can be inserted into the hollow portion 11 of the underwater side frame main body portion 21 without getting caught on the convex portion 28, and after assembly, the convex portion 28 fits into the groove 31 provided at the corresponding position of the connecting member 6, making it difficult for the connecting member 6 to fall out of the hollow portion 11 of the underwater side frame main body portion 21, but a dome-shaped shape is preferable.

[0066] The method for forming the protrusions 28 is not particularly limited, but it is preferable to form them by stamping them with a pin from the outer surface of the side of the underwater frame main body 21.

[0067] The size of the underwater frame main body 21 is not particularly limited, but it is preferable that the height is 25 to 30 mm and the width is 10 to 15 mm, and it is preferable that the size is the same as that of the inclined direction frame main body 8.

[0068] The underwater support wing 22 has a flat plate shape and is arranged so that the surface facing the solar cell module 1 is approximately vertical from the side of the underwater frame main body 21 toward the inside during assembly. That is, the underwater support wing 22 is arranged to protrude on the side opposite the first underwater water stop wing 23, the second underwater water stop wing 24, and the gutter 25. The underwater support wing 22 preferably consists of an upper stage support wing 22a and a lower stage support wing 22b for clamping the edge of the solar cell module main body 7 from above and below. In this embodiment, the upper stage support wing 22a is arranged so that its upper surface is approximately flush with the upper surface of the underwater frame main body 21.

[0069] The distance between the upper support wing 22a and the lower support wing 22b is not particularly limited, but is preferably about 10 mm.

[0070] The size of the underwater support wing 22 is not particularly limited, but it is preferable that the width is around 10 mm.

[0071] The first belowwater side water stop vane 23 has a flat plate shape and is arranged so that the surface that overlaps with the first upper abovewater side water stop vane 16a is approximately vertical from the side surface of the belowwater side frame main body 21 in the direction that will be outward when assembled. The second belowwater side water stop vane 24 also has a flat plate shape and is arranged so that the surface that overlaps with the second abovewater side water stop vane 17 is approximately vertical from the side surface of the belowwater side frame main body 21 in the direction that will be outward when assembled.

[0072] The size of the first underwater side water stop vane 23 and the second underwater side water stop vane 24 is not particularly limited, but it is preferable that the width is about 10 mm.

[0073] The gutter portion 25 has a V-shaped cross section in the short side direction. The shape of the gutter portion 25 is not limited to a V-shaped cross section, and the cross section may be an L-shaped or a C-shaped cross section. The size of the gutter portion 25 is not particularly limited, but the width is shorter than the width of the first downstream-side water stop vane 23 and the second downstream-side water stop vane 24.

[0074] Referring to Figs. 3(A) and 7, the underwater side frame member 5 has both ends formed at an angle of 45 degrees so that the underwater side water stop wings 23, 14 side is longer.

[0075] There are no particular restrictions on the material of each part that makes up the underwater frame member 5, but it is preferable to use a lightweight metal such as aluminum that has strength, corrosion resistance, and weather resistance. There are also no particular restrictions on the method for molding each part, but it is preferable to mold them by extrusion molding.

[0076] As shown in Fig. 4, the connecting member 6 has a shape like two flat plate-like members 29, 30 with their ends joined at 90 degrees. The connecting member 6 is provided with grooves 31 that fit into the protrusions 13, 20, 28 provided on the inclined frame main body 8, abovewater-side frame main body 14, and belowwater-side frame main body 21 when the connecting member 6 is inserted through the hollow portions 11 of the inclined-direction frame main body 8, abovewater-side frame main body 14, and belowwater-side frame main body 21 to connect the inclined frame member 3 and abovewater-side frame member 4, and the inclined frame member 3 and belowwater-side frame member 5. In this embodiment, three grooves 31 are provided linearly from the top to the bottom of each of the 90-degree opposing faces of the connecting member 6.

[0077] There are no particular limitations on the material of each part constituting the connecting member 6, but it is preferable to use a lightweight metal such as aluminum that has strength, corrosion resistance, and weather resistance. There are also no particular limitations on the molding method, but molding by extrusion molding is preferable.

[0078] Next, a method for assembling the solar cell module 1 using the frame 2 of the solar cell module 1 according to this embodiment and the solar cell module 1 will be described.

[0079] 5(A), the solar cell module body 7 is fitted into the abovewater frame member 4 so that the edges of the solar cell module body 7 are supported by the abovewater support wings 15. At this time, a sealant such as silicone resin is filled in the gap between the edges of the solar cell module body 7 and the abovewater support wings 15a, 15b. Similarly, the solar cell module body 7 is fitted into the belowwater frame member 5 so that the edges of the solar cell module body 7 are supported by the belowwater support wings 22a, 22b.

[0080] On the other hand, referring to Figure 5(B), the connecting members 6 are inserted into the hollow portions 11 of the inclined frame main body portion 8 until the protrusions 13 provided on the inner surface of the inclined frame main body portion 8 fit into the grooves 31 of the connecting members 6, and the connecting members 6 are attached to both ends of the inclined frame member 3.

[0081] The solar cell module body 7 is in a state before being fitted into the frame 2 of the solar cell module 1. The solar cell module body 7 may be a general one used for roofing, and for example, the solar cell module body 7 is composed of solar cells sealed with a filler, sandwiched between a front cover on the light-receiving surface and a back cover made of weather-resistant film on the back side, with a terminal box provided on the back side for extracting generated electricity. The solar cell cells are connected to each other with conductive interconnectors, and the ends of the interconnectors are pulled out from the back side and connected to output terminals inside the terminal box.

[0082] Next, referring to Figure 6, the connecting members 6 attached to both ends of the inclined frame member 3 are inserted into the hollow portion 18 of the above-water side frame main body portion 14 of the above-water side frame member 4, which is holding the solar cell module main body 7, and the hollow portion 26 of the below-water side frame main body portion 21 of the below-water side frame member 5.

[0083] As a result, the edge of the solar cell module main body 7 is supported by the inclined support wings 9a and 9b of the inclined frame member 3. At this time, a sealant such as silicone resin is filled into the gap between the edge of the solar cell module main body 7 and the inclined support wings 9a and 9b.

[0084] When the connecting member 6 is inserted until the protrusions 20, 28 on the inner surfaces of the abovewater-side frame main body 14 and the belowwater-side frame main body 21 fit into the grooves 31 of the connecting member 6, the end faces formed at 45 degrees at both ends of the inclined frame member 3 and the end faces formed at 45 degrees at both ends of the abovewater-side frame member 4 and the belowwater-side frame member 5 come together and are connected at 90 degrees to form a frame body, as shown in Figure 7, with the solar cell module main body 7 held within the frame body. In this way, the solar cell module 1 is completed, with the solar cell module main body 7 housed in the frame body.

[0085] As described above, according to the frame 2 of the solar cell module 1 of the present invention, the solar cell module 1 can be assembled simply by fitting the connecting members 6 into the inclined frame main body portion 8, the above-water frame main body portion 14, and the below-water frame main body portion 21 without using screws, and therefore all processes can be automated.

[0086] Next, with reference to FIG. 8, a mounting fixture 32 for the solar cell module 1, which is used to mount the solar cell module 1 assembled using the frame 2 described above, on a sheathing board N, will be described.

[0087] The mounting fixture 32 of the solar cell module 1 has a long base 33 fixed to a sheathing board N (see Figures 9 and 10, etc.), and in this embodiment, the base 33 has a three-layer structure. Note that a roofing sheet (not shown) may be attached to the top surface of the sheathing board N. The bottom first layer 34 has a long, flat plate shape. A middle second layer 35 having approximately the same size as the first layer 34 is provided above the first layer 34, and the second layer 35 is supported by support columns 36 erected at both ends of the first layer 34 in the lateral direction. Near both ends of the second layer 35 in the lateral direction, first support columns 37 are erected from the top surface of the second layer 35 to support the solar cell module 1 from below. The inner sides of the support columns 37 of the second layer 35 have a shallow V-shape when viewed in cross section in the lateral direction.

[0088] Above the second layer 35, a third layer 38 is provided as the uppermost layer having approximately the same size as the inside of the first support portion 37 of the second layer 35, and both ends of the third layer 38 in the short side direction are connected to the first support portion 37. The third layer 38 has a shallow V-shape in a cross section in the short side direction. As a result, the top surface of the base 33 is inclined downward from the first support portion 37 toward the holding portion 42, which will be described later.

[0089] In this embodiment, the second layer 35 and the third layer 38 constituting the base 33 are formed in a shallow V-shape with both the upper and lower surfaces inclined downward toward the center when viewed in cross section in the short direction, but by adjusting the thickness, the upper surface may be formed so that only the upper surface is inclined downward toward the center and the lower surface is flat.

[0090] In addition, in this embodiment, the top of the first support portion 37 is arranged so that it protrudes above the short-side end portion of the third layer 38, but if the V-shape of the second layer 35 and the third layer 38 is sufficiently deep, there is no risk of rainwater leaking out from the short-side end portion of the second layer 35 and the third layer 38, so the top may be at the same height as the short-side end portion of the third layer 38.

[0091] The outer side of the first support portion 37 in the second layer 35 and the portion of the first layer 34 facing this portion form a base fixing portion 39 that fixes the base 33 to the sheathing subfloor N, and is provided with screw holes (not shown) for inserting wood screws (see FIG. 9, etc.) that fix the base 33 to the sheathing subfloor N. The portion of the base 33 inward from the base fixing portion 39 forms a gutter 40 that drains rainwater that seeps in through gaps between the below-described locking portions 43 and the locking wings 9 of the solar cell module 1 from the eaves to the ground. Between the first layer 34 and the second layer 35, below and outside the first support portion 37, a second support portion 41 is provided upright from the first layer 34 and extends along the longitudinal direction of the base 33 to support the solar cell module 1 from below together with the first support portion 37. The second support portion 41 also serves as a partition separating the base fixing portion 39 from the gutter.

[0092] A holding portion 42 for holding a locked portion 43 (described later) is provided in the center of the short side of the top surface of the base 33 along the longitudinal direction and approximately perpendicular to the bottom surface of the base 33. The holding portion 42 has a hollow rectangular parallelepiped shape.

[0093] The holding part 42 has locking portions 43 at the top of both short-side surfaces thereof for locking the locking wings 10 of the solar cell module 1. The locking portions 43 have a flat plate shape and are provided along the longitudinal direction of the base 33 so that the surfaces on which the locking wings 10 are locked are approximately perpendicular to the side surfaces of the holding part 42. In this embodiment, two locking portions 43 are provided on one side surface of the holding part 42, spaced the same apart as the two locking wings 10 of the inclined frame member 3.

[0094] The size of the mounting fixture 32 of the solar cell module 1 is not particularly limited, but in this embodiment, the holding portion 42 is formed at a height that allows the bottom surface of the second above-water water-stopping wing 17, which forms the bottom of the solar cell module 1, to be supported by the first support portion 37 when the upper surface of the locking wing 10 of the frame 2 of the solar cell module 1 is locked to the lower surface of the locking portion 43, as shown in Figure 9.

[0095] In addition, it is preferable that the length from the holding portion 42 of the gutter to the support portion 37 is long enough to receive any water that leaks between the locked portion 43 and the locking wing 10 .

[0096] There are no particular limitations on the material of each part constituting the mounting fixture 32 of the solar cell module 1, but it is preferable to use a lightweight metal such as aluminum that has strength, corrosion resistance, and weather resistance. There are also no particular limitations on the method for forming each part, but it is preferable to use extrusion molding.

[0097] Next, a method for attaching the solar cell module 1 to the sheathing board N using the mounting fixture 32 for the solar cell module 1, and an installation structure for the solar cell module 1 using the mounting fixture 32 for the solar cell module 1 according to this embodiment will be described with reference to Figures 9 to 13.

[0098] First, referring to Figure 10, the mounting fixture 32 of the solar cell module 1 is placed on the upper surface of the roof underlayment that is not covered with roofing material, i.e., the upper surface of the sheathing board N or the upper surface of the roofing laid on the sheathing board N, so that the longitudinal direction of the mounting fixture 32 of the solar cell module 1 is aligned with the inclination direction k of the sheathing board N, and wood screws 44 are inserted into screw holes (not shown) provided in the base fixing portion 39 and screwed into the sheathing board N, thereby fixing the mounting fixture 32 of the solar cell module 1 to the sheathing board N.

[0099] The fixtures 32 for the solar cell modules 1 are arranged at a predetermined interval from one eaves to the other, and this arrangement interval is determined according to the length of the side that will be parallel to the eaves when the solar cell modules 1 are installed. Specifically, the fixtures 32 for the solar cell modules 1 are arranged so that the distance between the side surfaces of the holding parts 42 of the fixtures 32 for adjacent solar cell modules 1 is approximately the same as the above-mentioned length of the solar cell modules 1.

[0100] The mounting fixture 32 of the solar cell module 1 is either pre-formed to a length approximately equal to the distance from the ridge to the eaves, or is configured by joining multiple fixtures together to have a length approximately equal to the distance from the ridge to the eaves. When joining multiple fixtures together, as shown in Figure 11, the end face on the side that will be placed on the water side is pre-formed at an angle so that the bottom side is shorter than the top side in a longitudinal side view, and the end face on the side that will be placed on the underwater side is pre-formed at an angle so that the bottom side is longer than the top side in a longitudinal side view. When joining the fixtures together, as shown in Figure 11(B), the abovewater end face u of the mounting fixture 32 of one solar cell module 1 is butted against the belowwater end face d of the mounting fixture 32 of another solar cell module 1 to form a single mounting fixture 32 for the solar cell module 1.

[0101] 10, the solar cell module 1 is slid toward the eaves and placed between the mounting fixtures 32 of adjacent solar cell modules 1, with the upper surface of the locking wing 10 abutting against the underside of the locked portion 43 from the ridge-side end of the mounting fixture 32 of the solar cell module 1, and the bottom surface of the abovewater-side frame main body 14, the bottom surface of the second abovewater-side water stop wing 17, and the bottom surface of the belowwater-side frame main body 21 abutting against the top of the support portion. Here, because the bottom of the solar cell module 1 is supported by the support portion 37, the locking wing 10 is locked to the locked portion 43.

[0102] At this time, in the portions where the ends of the inclined frame member 3 and the abovewater frame member 4 butt against each other at 45 degrees and where the ends of the inclined frame member 3 and the belowwater frame member 5 butt against each other at 45 degrees, the ends of the abovewater water stop wing 16 and the belowwater water stop wing 23 overhang the areas where the locking wing 10 is locked to the locking portion 43. However, because the abovewater water stop wing 16 is located at the same height as the locking wing 10, it does not interfere with the locking portion 43. The belowwater water stop wing 23 is located lower by the thickness of the abovewater water stop wing 16, but by locking the locking wing 10 from the underside of the locking portion 43, it can be positioned so that it does not interfere with the locking portion 43. After the solar cell module 1 is placed in the predetermined position, the locking wing 10 is fastened to the locking portion 43 with screws 45, as shown in Figure 9, to secure the solar cell module 1 to the mounting fixture 32.

[0103] After placing one solar cell module 1, the next solar cell module 1 is similarly placed on the ridge side of the previously placed solar cell module 1. At this time, referring to FIG. 12 , the underwater-side water stop wing 23, 24 and the abovewater-side water stop wing 16, 17 of the previously placed solar cell module 1 overlap, and the tips of the underwater-side water stop wing 23, 24 abut the side of the abovewater-side frame body 14 and the tips of the belowwater-side water stop wing 23, 24 abut the side of the belowwater-side frame body 21. This ensures that the belowwater-side solar cell module 1 and the abovewater-side solar cell module 1 are firmly combined without any rattle, eliminating the need for screw fastening. As a result, even if rainwater is not caught by the gutter section 25, it will not leak through the screw holes onto the sheathing board N. Furthermore, the fact that the belowwater-side solar cell module 1 and the abovewater-side solar cell module 1 are firmly combined without any rattle also helps prevent noise.

[0104] In addition, near the eaves and the eaves edge, eaves covering members 47 that cover the eaves edge and eaves edge covering members 48 that cover the eaves edge are installed to prevent rainwater from being blown into the sheathing boards N. Similarly, on the ridge (not shown), a ridge covering member (not shown) is installed to prevent rainwater from flowing into the sheathing boards N.

[0105] By attaching the solar cell module 1 assembled using the frame 2 of the solar cell module 1 of this embodiment to the sheathing board N using a mounting fixture, rainwater that seeps in through the gap between the locking wing 10 of the solar cell module 1 and the locked portion 43 of the mounting fixture, the gap between the locking wing 10 and the above-water side water stop wing where the end of the inclined frame member 3 and the end of the above-water side frame member 4 butt against each other at 45 degrees, or the gap between the end of the above-water side water stop wing of the solar cell module 1 on the ridge side of the solar cell module 1 arranged adjacent in the inclined direction of the sheathing board N and the end of the locking wing 10 of the solar cell module 1 on the eaves side falls into the gutter 40 on the third layer 38 of the mounting fixture 32.

[0106] Furthermore, rainwater that seeps in through the gap between the first abovewater water stop wing 16 of the solar cell module 1 on the ridge side of the solar cell module 1 arranged adjacent to the slope of the sheathing board N and the first belowwater water stop wing 23 of the solar cell module 1 on the eaves side falls into the gutter section 25 provided below the first belowwater water stop wing 23. Referring to Figure 13, the rainwater that falls into the gutter section 25 travels along the gutter section 25 in a direction perpendicular to the slope of the sheathing board N and falls into the gutter 40 on the third layer 38 of the mounting fixture 32. Note that if there is rainwater that cannot be caught by the gutter section 25, it is stopped by the second abovewater water stop wing 17 and the second belowwater water stop wing 24.

[0107] Rainwater that falls into the gutter 40 on the third layer 38 of the mounting fixture 32 moves along the gutter 40 toward the eaves according to the slope of the sheathing board N. Supports 37 are provided at both ends of the gutter 40, and these support parts 37 act as embankments. Furthermore, as the gutter 40 is sloped toward the center, it is possible to prevent rainwater from flowing out of the gutter 40.

[0108] 11(B), the end face u of the mounting fixture 32 on the abovewater side is formed at an angle in advance so that the bottom side is shorter than the top side in a longitudinal side view, and the end face d of the mounting fixture 32 on the belowwater side is formed at an angle in advance so that the bottom side is longer than the top side in a longitudinal side view, and since the end faces u and d are arranged butt-together, even if rainwater that has flowed down the gutter 40 on the upper layer abovewater falls through the gap at the butt joint, it can be caught by the gutter 40 on the lower layer belowwater, and the rainwater does not infiltrate the sheathing board N through the joint. Furthermore, even when rainwater is received on the lowest first layer 34, the base fixing part 39 and the gutter 40 are separated by the support part 41, so the rainwater does not flow to the base fixing part 39 and infiltrate the sheathing board N through the screw holes.

[0109] Next, a frame 200 of a solar cell module 100 according to another embodiment of the present invention will be described with reference to Fig. 14. Components having the same reference numerals as the frame 2 of the solar cell module 1 according to the first embodiment described above have the same configuration as the frame 2 of the solar cell module 1 according to the first embodiment.

[0110] The frame 200 of the solar cell module 100 in this embodiment has an inclined frame member 3 that will be arranged along the inclination direction of the subfloor N, an above-water frame member 4 that will be arranged in a direction perpendicular to the inclination direction of the subfloor N and on the above-water side in relation to the solar cell module 1 that will be arranged adjacent to the inclination direction of the subfloor N, an below-water frame member 50 that will be arranged in a direction perpendicular to the inclination direction of the subfloor N and on the below-water side in relation to the solar cell module 1 that will be arranged adjacent to the inclination direction of the subfloor N, and a connecting member 6 that is L-shaped when viewed from above for connecting the inclined frame member 3 and the above-water frame member 4, and the inclined frame member 3 and the below-water frame member 50.

[0111] The frame 200 of the solar cell module 100 according to this embodiment differs from the frame 2 of the solar cell module 1 according to the above-described first embodiment only in the shape of both longitudinal end portions of the underwater-side frame member 50. In the underwater-side frame member 50, both end portions of the first underwater-side water stop wing 230, the second underwater-side water stop wing 240, and the gutter portion 250 are formed perpendicularly from the tip of the underwater-side frame main body 21 toward the side of the underwater-side water stop wing 230, 240 opposite the underwater-side frame main body 21.

[0112] The first downstream water stop vane 230, the second downstream water stop vane 240, and the gutter portion 250 are configured in the same manner as in the first embodiment described above, except for the shapes of both ends.

[0113] In this embodiment, the first underwater side water stop wing 230, the second underwater side water stop wing 240, and both end portions of the gutter section 250 are formed vertically from the tip of the underwater side frame main body section 21 toward the side of the underwater side water stop wing 230, 240 opposite the underwater side frame main body section 21, but it is sufficient that at least both end portions of the first underwater side water stop wing 230 have this shape, and the second underwater side water stop wing and / or gutter section may have both end portions formed at a 45-degree angle so that the side opposite the underwater side frame main body section 21 is longer, as in the first embodiment described above.

[0114] Next, with reference to FIG. 15, a mounting structure for the solar cell module 100 in which the solar cell module 100 assembled using the frame 200 of the solar cell module 100 according to this embodiment is mounted on a sheathing board N will be described.

[0115] The mounting fixture 32 for the solar cell module 100 is the same as that used in the first embodiment described above, and is fixed to the sheathing subfloor N in the same manner as described above. The solar cell module 100 is attached with the lower surfaces of the locking wings 10 locked to the upper surfaces of the locking portions 43 of the mounting fixture 32 fixed to the sheathing subfloor N. Other than the fact that the lower surfaces of the locking wings 10 are locked to the upper surfaces of the locking portions 43, the present embodiment is the same as the first embodiment described above.

[0116] At the portion where the end of the inclined frame member 3 and the end of the above-water frame member 4 butt against each other at 45 degrees, the end of the above-water water stop wing 16 protrudes into the area where the locking wing 10 is locked to the locking portion 43. However, since the above-water water stop wing 16 is positioned at the same height as the locking wing 10, the solar cell module 100 can be placed without interfering with the locking portion 43. On the other hand, the underwater-side water stop wing 230 is positioned lower by the thickness of the abovewater-side water stop wing 16, but the end of the belowwater-side water stop wing 230 where the end of the inclined frame member 3 and the end of the belowwater-side frame member 50 meet at 45 degrees is formed perpendicularly from the tip of the belowwater-side frame main body 21 toward the side of the belowwater-side water stop wing 230 opposite the belowwater-side frame main body 21, and the area where the locking wing 10 is locked to the locked part 43 is cut out, so the solar cell module 100 can be placed without interfering with the locked part 43. Note that the cut-out part of the end of the belowwater-side water stop wing 230 is covered by the part where the locking wing 10 of another solar cell module 100 placed adjacent in the inclined direction of the sheathing board N meets the abovewater-side water stop wing 16, so it does not cause any problems in terms of water stopping.

[0117] In addition, when the locking wings 10 are locked from the top surface of the locking portion 43 of the mounting fixture as in this embodiment, the solar cell module 1 can be supported only by the locking portion 43, so there is no need to support the bottom of the solar cell module 100 on the support portion 37. However, if the bottom of the solar cell module 100 is not supported by the support portion 37, in a mounting fixture placed near the eaves, the solar cell module 100 is not locked to the locking portion 43 on the eaves side, so the load of the solar cell module 100 is concentrated on the base of the holding portion 42 on the side where the solar cell module 100 is locked, via the locking portion 43 on the side where the solar cell module 100 is locked, causing the holding portion 42 to tilt. As a result, the watertightness is reduced in areas where surfaces overlap to stop water. Therefore, although there may be a gap between the bottom and the support of the solar cell module 100, it is preferable that the bottom of the solar cell module 100 be supported by the support 37 at an inclination that does not affect water blocking if the holding part 42 tilts. If the solar cell module 100 can be supported from below, the load of the solar cell module 100 can also be borne by the sheathing board N via the support 37, so that the inclination of the holding part 42 can be suppressed and water blocking will not be affected.

[0118] Here, instead of supporting the bottom of the solar cell module 100 with the support part 37, it is also possible to prevent the holding part 42 from tilting by arranging the holding part 42 so that it is in contact with the first layer 34 and having the sheathing board N support the weight of the solar cell module 100 through the holding part 42. However, in this case, as shown in Figure 11, the mounting fixture 32 is formed at an angle in advance so that the end face on the side that is placed on the above-water side is shorter on the bottom side than on the top side when viewed from the longitudinal side, and by butting the end faces of the two mounting fixtures 32 together, rainwater that has flowed down the upper gutter 40 on the above-water side cannot be collected by the lower gutter 40 on the below-water side.

[0119] Next, another embodiment of the frame of the solar cell module according to the present invention will be described with reference to Fig. 16. Components having the same reference numerals as the frame 2 of the solar cell module 1 according to the first embodiment described above have the same configuration as the frame 2 of the solar cell module 1 according to the first embodiment.

[0120] As shown in Figures 16(A) to (C), the inclined frame main body 80, the abovewater frame main body 140, and the belowwater frame main body 210 are each formed so that the side on which the locking wing 10, the first and second abovewater water stop wings 16, 17, the first and second belowwater water stop wings 23, 24, and the gutter section 25 are provided is higher than the opposite side, and the upper stage support wings 90a, 150a, 220a are provided so as to protrude on the side opposite the locking wing 10, the first and second abovewater water stop wings 16, 17, the first and second belowwater water stop wings 23, 24, and the gutter section 25 on the higher side. The upper surfaces of the inclined frame main body 80, the above-water frame main body 140, and the below-water frame main body 210 are arranged below the upper stage support wings 90a, 150a, 220a so as to face the upper stage support wings 90a, 150a, 220a, and also function as lower stage support wings 90b, 150b, 220b.

[0121] Except for the lengths of the side surfaces described above, the inclined-direction frame main body 80, abovewater-side frame main body 140, and belowwater-side frame main body 210 are configured in the same manner as the thick inclined-direction frame main body 8, abovewater-side frame main body 14, and belowwater-side frame main body 21 of the first embodiment. Also, except for the positions where the support wings 90, 150, and 220 are provided, they are configured in the same manner as the support wings 9, 15, and 22 of the first embodiment.

[0122] Next, a mounting fixture 320 for a solar cell module 1 according to another embodiment of the present invention will be described with reference to Fig. 17. Components with the same reference numerals as the mounting fixture 32 used in the first embodiment described above have the same configuration as the mounting fixture 32 for the solar cell module 1 according to the first embodiment.

[0123] The mounting fixture 320 of the solar cell module 1 has a long base 330 that is fixed to the sheathing board N, and a holding portion 420 for holding the locked portion 43 is provided in the center of the short side of the top surface of the base 330, along the longitudinal direction and approximately perpendicular to the base 330. The holding portion 420 has a flat plate shape.

[0124] Further, support portions 370 for supporting the solar cell module 1 from below are provided near both ends in the short side direction of the base 330. The support portion 370 has a flat plate-shaped erect portion 371 erected from the upper surface of the base 330, and a solar cell module receiving portion 372 bent approximately 90 degrees from the erect portion 371 toward the holding portion 42 and for receiving the bottom of the solar cell module 1.

[0125] Two flat troughs 400 are provided between the holding portion 42 and the support portion 370 and are substantially parallel to the base portion 330. The portion of the base portion 33 inside the support portion 370 also functions as a trough.

[0126] The outer side of the support portion 370 of the base 33 is a base fixing portion 390 that fixes the base 33 to the sheathing board N, and is provided with a screw hole (not shown) for inserting a wood screw 44 that fixes the base 330 to the sheathing board N.

[0127] The fixture 320 of the solar cell module 1 has the same configuration as the fixture 32 used in the first embodiment, except for the shape described above. [Explanation of symbols]

[0128] 1,100: Solar cell modules 2,200: Solar cell module frame 3: Inclined frame member 4: Above-water frame member 5,50: Underwater side frame member 6: Connection parts 7: Solar cell module body 8,80: Inclined frame body 9: Inclined support wing 10: Locking wing 13, 20, 28: Convex 14,140: Water side frame body part 15: Above water side support wing 16: First above-water stop wing 17: Second water-side stop wing 21,210: Underwater side frame body part 22,220: Underwater support wing 23,230: First downstream water stop wing 24,240: Second downstream water stop wing 25,250: Hibe 31: Groove 32,320: Solar cell module mounting fixture 33,330: Base 37: First support part 41: Second support part 42: Holding part 43:Locked part 370: Strut part

Claims

1. A solar cell module frame for attaching a plurality of solar cell modules to a sheathing board, An inclined frame member to be arranged along the inclined direction of the sheathing board; A water-side frame member that is to be arranged on the water side in relation to the solar cell module that will be arranged adjacent to the inclination direction of the sheathing board in a direction perpendicular to the inclination direction of the sheathing board; A water-side frame member that is to be arranged on the water side in relation to the solar cell module that will be arranged adjacent to the inclination direction of the sheathing board in a direction perpendicular to the inclination direction of the sheathing board, and a connecting member having an L-shape in top view for connecting the inclined frame member to the abovewater frame member, and the inclined frame member to the belowwater frame member; The inclined frame member has an inclined frame main body portion having a rectangular parallelepiped shape with the interior hollow in the longitudinal direction, locking wings that are provided along the longitudinal direction of the inclined frame main body portion and protrude toward the outer side of the inclined frame main body portion when assembled, and lock onto a mounting fixture that mounts the solar cell module to the sheathing board, and inclined support wings that are provided along the longitudinal direction of the inclined frame main body portion and protrude toward the opposite side from the locking wings, and support an edge of the solar cell module main body, The above-water direction frame member has an above-water side frame main body portion having a rectangular parallelepiped shape with the interior hollow in the longitudinal direction, above-water side water stop wings that are provided along the longitudinal direction of the above-water side frame main body portion and protrude outward from the above-water side frame main body portion when assembled, for stopping water between other solar cell modules installed adjacently along the inclination direction of the sheathing, and above-water side support wings that are provided along the longitudinal direction of the above-water side frame main body portion and protrude on the opposite side from the above-water side water stop wings, for supporting the edge of the solar cell module main body, The underwater frame member has an underwater side frame main body portion having a rectangular parallelepiped shape with the interior hollow in the longitudinal direction, an underwater side water stopping wing provided along the longitudinal direction of the underwater side frame main body portion and protruding outward from the underwater side frame main body portion when assembled, for stopping water between other solar cell modules installed adjacently along the inclination direction of the sheathing, and an underwater side support wing provided along the longitudinal direction of the underwater side frame main body portion and protruding on the opposite side from the underwater side water stopping wing, for supporting the edge of the solar cell module main body. The above-water side water stop wing is provided at the same height as the position corresponding to the locking wing, the underwater side water stop wing is provided below a position corresponding to the abovewater side water stop wing by a thickness of the abovewater side water stop wing, The inclined frame member has both ends formed at an angle of 45 degrees so that the locking wing side is long, except for the end on the side connected to the underwater frame member of the locking wing, and the end on the side connected to the underwater frame member of the locking wing is formed perpendicularly from the tip of the side connected to the underwater frame member of the inclined frame main body toward the side of the locking wing opposite to the inclined frame main body, The above-water side frame member has both ends formed at an angle of 45 degrees so that the above-water side water stop vane side is longer, The underwater side frame member has both ends formed at an angle of 45 degrees so that at least the underwater side support wing and the underwater side frame main body are longer on the abovewater side water stop wing side, A frame for a solar cell module, characterized in that the inclined frame member and the above-water frame member, and the inclined frame member and the below-water frame member are connected and assembled by inserting the connecting member into the inside of the inclined frame main body portion, the above-water frame main body portion, and the below-water frame main body portion.

2. 2. The solar cell module frame of claim 1, wherein the inclined support wing, the above-water support wing, and the below-water support wing are composed of upper and lower support wings for clamping the edge of the solar cell module body from the top and bottom.

3. 3. The frame for a solar cell module according to claim 1, wherein a plurality of said locking wings are provided.

4. a second water-side water stop wing provided below the water-side water stop wing along the longitudinal direction of the water-side frame main body, for stopping water between the water-side water stop wing and another solar cell module installed adjacent to the water-side water stop wing along the inclination direction of the sheathing board; A frame for a solar cell module as described in claim 1 or claim 2, characterized in that it has a second underwater water stop wing located below the underwater water stop wing along the longitudinal direction of the underwater side frame main body and above the position corresponding to the abovewater water stop wing by the thickness of the second abovewater water stop wing, for stopping water between the solar cell module and other solar cell modules installed adjacent to it along the inclination direction of the subfloor.

5. A frame for a solar cell module as described in claim 1 or claim 2, characterized in that a gutter portion is provided on the side of the underwater frame main body portion to catch rainwater that enters through the gap between the abovewater water stop wing and the belowwater water stop wing of another solar cell module when the solar cell modules are installed adjacent to each other along the inclination direction of the subfloor.

6. a protrusion is provided on an inner surface near both ends of the inclined frame main body portion, near both ends of the abovewater-side frame main body portion, and near both ends of the belowwater-side frame main body portion, A frame for a solar cell module as described in claim 1 or claim 2, characterized in that the connecting member has a groove in which the convex portion fits at a position corresponding to the convex portion when the connecting member is inserted into the inclined frame main body portion, the above-water side frame main body portion, and the below-water side frame main body portion to connect the inclined frame member and the above-water side frame member, and the inclined frame member and the below-water side frame member.

7. A solar cell module assembled using the solar cell module frame according to claim 1, one opposing edge of the solar cell module body is supported by the inclined support wing of the first inclined frame member and the second inclined frame member, respectively, and another opposing edge of the solar cell module body is supported by the abovewater side support wing and the belowwater side support wing, respectively; A solar cell module characterized in that the connecting members are inserted into the interiors of the inclined frame main body portion, the above-water frame main body portion, and the below-water frame main body portion, and one end of the first inclined frame member and one end of the above-water frame member, the other end of the first inclined frame member and one end of the below-water frame member, one end of the second inclined frame main body portion and the other end of the above-water frame member, and the other end of the second inclined frame member and the other end of the below-water frame member are connected with their end faces, each formed at a 45-degree angle, butted together.

8. A solar cell module mounting fixture for mounting the solar cell module according to claim 7 to the sheathing board, A long base portion fixed to the sheathing board; a locking portion provided above the base along the longitudinal direction of the base, to which the locking wing of the frame is locked; a holding portion provided along a longitudinal direction at a central portion in a lateral direction of the base portion, for holding the locked portion; a support portion provided in a longitudinal direction near both ends of the base portion for supporting the solar cell module from below; The solar cell module mounting fixture is characterized in that the engaging portions are provided on the upper portions of both short-side surfaces of the holding portion.

9. 9. The solar cell module mounting fixture according to claim 8, wherein at least the upper surface of the base is inclined downward from the support portion toward the holding portion.

10. 10. The solar cell module mounting fixture according to claim 8, wherein the base has a layer structure.

11. 10. The solar cell module mounting fixture according to claim 8, wherein an end face in the longitudinal direction is formed obliquely when viewed from the side in the longitudinal direction.

12. A solar cell module mounting structure in which the solar cell module according to claim 7 is mounted on the sheathing board using the solar cell module mounting fixture according to claim 8, A plurality of the solar cell module mounting fixtures are arranged at predetermined intervals along the inclination direction of the sheathing board, the locking wings of the first inclined frame member are locked from below to the locked portions of a mounting fixture for one of the solar cell modules, and the locking wings of the second inclined frame member are locked from below to the locked portions of a mounting fixture for another solar cell module that is disposed adjacent to the mounting fixture for the one solar cell module, the solar cell module is supported from below by the support portion, The two solar cell modules arranged adjacent to each other in the inclination direction of the sheathing board are arranged such that the above-water side water stop wing of the above-water side solar cell module and the below-water side water stop wing of the below-water side solar cell module are overlapped, A mounting structure for a solar cell module, characterized in that the underwater side of the abovewater water stopping wing of the abovewater solar cell module and the end face of the locking wing of the belowwater solar cell module that is connected to the belowwater frame member are arranged in a butted state.

13. A solar cell module mounting structure in which the solar cell module according to claim 7 is mounted on the sheathing board using the solar cell module mounting fixture according to claim 8, A plurality of the solar cell module mounting fixtures are arranged at predetermined intervals along the inclination direction of the sheathing board, Both end portions of the underwater-side water stop wing are formed perpendicularly from the tip end of the underwater-side frame main body portion toward the side of the underwater-side water stop wing opposite to the underwater-side frame main body portion, the locking wings of the first inclined frame member are locked from above to the locked portions of a mounting fixture for one of the solar cell modules, and the locking wings of the second inclined frame member are locked from above to the locked portions of a mounting fixture for another solar cell module that is disposed adjacent to the mounting fixture for the one solar cell module, the solar cell module is supported from below by the support portion, The two solar cell modules arranged adjacent to each other in the inclination direction of the sheathing board are arranged such that the above-water side water stop wing of the above-water side solar cell module and the below-water side water stop wing of the below-water side solar cell module are overlapped, A mounting structure for a solar cell module, characterized in that the underwater side of the abovewater water stopping wing of the abovewater solar cell module and the end face of the locking wing of the belowwater solar cell module that is connected to the belowwater frame member are arranged in a butted state.

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