JPH11117479A - Fitting structure for solar battery module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a water leakage by providing horizontal sash bar members in the crossing direction with fitting rails installed on a roof, and butting the frames of adjacent solar battery modules on the horizontal sash bar members. SOLUTION: Multiple fitting rails 5 extended in the flowing direction of a roof are installed on a sheathing roof board 1, and horizontal sash bar members 7 are fixed to the fitting rails 5 in the crossing direction with the fitting rails 5. Second frames 17 are partially inserted into the fixing gaps 15 between the lower support pieces 11 and upper support pieces 13 of the horizontal sash bar members 7 to fix solar battery modules 9 to the horizontal sash bar members 7. Rainwater flows on the surfaces of the solar battery modules 9 along the flowing direction, infiltrates from frame butt sections, reaches the horizontal sash bar members 7, reaches the gutter sections of the fitting rails 5 from the end sections of the horizontal sash bar members 7, and is discharged to the outside. The fitting work can be simplified accordingly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the field of mounting technology in which a large number of solar cell modules are installed on a roof or the like in a building material integrated structure, and water leakage occurs even in a general frame structure of a general-purpose solar cell module. However, it is intended to realize a mounting structure which is excellent in strength.

[0002]

2. Description of the Related Art Recently, as represented by photovoltaic power generation,
The spread of alternative energy has been remarkable, and the number of solar modules installed on the roofs of ordinary houses has been increasing each year. When installing a solar cell module on the roof of a house, a rod called a tile rod is erected from a base plate through a roof material such as a roof tile, and a solar cell array of a plurality of solar cell modules is built thereon. Either a method or a method of constructing a solar cell array directly on a field board without using a roof tile is adopted. The latter is called a building material integrated type,
It has been highly evaluated by the market as being superior to the former method in terms of reliability. In this integrated construction material structure, a flow direction aluminum rail is mounted on a base plate of a detached house, a plurality of solar cell modules are mounted on this, and a solar cell array is constructed. Attach an accessory to each side and complete. A waterproof sheet is placed on the base plate, and an aluminum rail is mounted thereon, and a frame of the solar cell module is mounted on the aluminum rail. Therefore, the solar cell module also has a tile function.

[0003]

However, in the case of such a building material integrated type, since there is no tile under the solar cell module, it is necessary to take complete waterproofness with the solar cell module attached. Even if it is not a building material integrated structure, it is desirable to flow rainwater downward on the solar cell module as much as possible. For this reason, waterproofing is particularly important at the butting portion of the frames between the solar cell modules in the flow direction of the roof. Therefore, each solar cell maker has developed various unique frame structures, and the structure is unique to each company. Further, for these reasons, at present, they are designed as residential solar cell modules separately from general-purpose products. On the other hand, there is a strong demand for cost reduction from the market for solar cell modules, and the cost reduction effect is great if residential manufacturers can use general-purpose products. This general-purpose product is premised on the fact that the solar cell module is installed on ordinary H steel or the like, and thus has a structure as shown in FIG. 4 in most cases. Hereinafter, the solar cell module of FIG. 4 will be described. The drawing illustrates the structure of the most general solar cell module 9 commonly seen as a general-purpose product of each company at present. Frames 17 and 23 each having two different structures are provided on each of opposing sides of a solar cell panel 19 in which a plurality of solar cell elements are arranged on one glass plate.
Are fitted and fixed. A frame (second frame) 17 in the long side direction in the figure is provided with a plate-like extending piece 25 at a lower portion thereof, and the extending piece 25 is provided with a mounting hole (not shown). The short side direction (first frame) 23 does not have such an extended piece, and has a simple plate shape. That is, an approximately U-shaped plate and a plate-shaped one are combined in a sectional view, and the extended piece 25 of the second frame 17 and the first frame are abutted at the corners. This is to secure the torsional strength while reducing the material used for the frame. This structure is the most economical structure as a solar cell module, and can be regarded as a substantial standard structure. Therefore, most of the general-purpose solar cell modules of each company also have such a shape.

[0004] Such a general-purpose solar cell module includes:
Since it is not assumed that the building material is integrated with the roof as an installation state, rainwater will surely penetrate from the abutting portion when the roof material is installed as it is. Since there is no roof tile under the solar cell module in the construction material integrated type structure, rainwater must be reliably cut. For the above reasons, the current building material-integrated residential solar cell module is expensive using a dedicated frame, and it is possible to secure high reliability while using a general-purpose module. , Has become a major challenge for the entire industry.

[0005]

[Means for Solving the Problems] Under these circumstances,
The present inventor has developed a highly reliable building material integrated type installation structure while using the above-described general-purpose frame structure.
The above-mentioned subject is to provide a first plate-shaped frame having a fitting groove at an end of a solar cell panel at one end and extending in a direction intersecting the solar cell panel at the other end, and a solar cell panel at one end. It has a fitting groove at an end, and the other end side extends in a direction intersecting with the solar cell panel surface, and an extension piece substantially parallel to the solar cell panel surface and inward from the other end is formed. A plurality of solar cell modules, each having two U-shaped second frames attached to two opposing sides of a rectangular solar cell panel and extending in one direction of a solar cell module installation surface, are provided. A mounting structure for a solar cell module in which the first frame is mounted in the same direction as the mounting rail and the second frame is mounted in a direction intersecting the mounting rail with respect to the mounting rail of Between the lower support pieces, which are wider than the extension pieces of the second frame, and a fixing gap between the lower support pieces, in which the extension pieces of the second frame can be sandwiched in the thickness direction. A horizontal rail member having an upper support member protruding from a vertical piece is installed in parallel with the lower support member, and an extension piece of the second frame of the solar cell module is provided in the fixing gap of the horizontal rail member. The second frames of the inserted solar cell modules are brought into contact with each other on the horizontal rail member, and the adjacent first solar cell modules on the mounting rail are separated from each other by the joint space. In the mounting rail, the gutter portion along the length direction of the mounting rail projects inward of the solar cell module from the erection site of the horizontal rail member,
It is possible to solve the problem by adopting a structure in which water entering from between the solar cell modules is collected in the gutter portion.

[0006] In such a mounting structure of the present invention, a horizontal rail member is provided in a direction intersecting with a mounting rail installed on a roof, and frames of adjacent solar cell modules are butted on the horizontal rail member. The structure is such that the water that has penetrated in the part flows down the horizontal rail member to the mounting rail. And for the mounting rail,
Since the gutter portion is provided along the longitudinal direction, the intruding water transmitted through the horizontal rail member flows into the gutter portion and is discharged to the outside of the roof. Therefore, the installation surface of the solar cell module,
In this case, rainwater does not drip on the roof base plate. Hereinafter, the embodiment will be described in detail.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, an outline of a mounting structure according to the present invention will be described. A plurality of mounting rails 5 extending in the flow direction of the roof 3 are installed on the base plate 1, and the horizontal rail member 7 is fixedly installed on the mounting rail 5 in a direction crossing the mounting rails 5. The solar cell module 9 is provided with a lower support piece 11 of the horizontal rail member 7.
Gap 1 formed between the upper support piece 13 and
By inserting a part of the second frame 17 into the fifth frame 5, the second frame 17 is fixed to the cross beam member 7. Hereinafter, a more detailed description will be given with reference to the cross-sectional views.

FIG. 2 is a cross-sectional view in the flow direction (parallel to the mounting rail) of the present invention, and FIG. 3 is a cross-sectional view in a direction crossing the flow direction (crossing the mounting rail).
In the illustrated example, the fitting groove 2 at the end of the solar cell panel 19 is provided at one end.
1 and a plate-shaped first frame 23 whose other end extends in a direction intersecting the surface of the solar cell panel 19, and a fitting groove 21 at one end of the solar cell panel 19, An end piece extending in a direction intersecting with the surface of the solar cell panel 19, and an extension piece 25 that is substantially parallel to the surface of the solar cell panel 19 and extends inward from the other end is formed. Two solar cell modules 9 each having two frames 17 mounted on each of opposing sides of a rectangular solar cell panel 19 are fixedly mounted on mounting surfaces (roof 3) of solar cells by mounting rails 5. It was done. Further, in the illustrated example, the mounting rail 5 penetrates the base plate 1 and is fixed to the rafter 27 by a nail 29. However, depending on the relationship between the width of the solar cell module 9 and the pitch of the rafters 27, the positions of the mounting rails 5 and the rafters 27 may not always coincide with each other. Only the nail 29 needs to be fixed.

The first frame 23 is mounted on a plurality of mounting rails 5 extending in one direction of the installation surface, in this example, the flow direction of the roof 3 (indicated by an arrow) in the present embodiment. The second frame 17 is mounted in the same direction as the rail 5, in a direction crossing the mounting rail 5. And between the solar cell modules 9,
As the abutting part lined up in the flow direction,
A lower support piece 11 wider than the extension piece 25 of the second frame 17 between the mounting rails 5 and an extension piece 25 of the second frame 17 between the lower support piece 11 and The horizontal rail member 7 in which the upper support piece 13 protrudes from the vertical piece 31 in parallel with the lower support piece 11 with a fixing gap 15 that can be sandwiched in the vertical direction, is erected and fixed by a horizontal rail fixing screw 33, The extension piece 25 of the second frame 17 of the solar cell module 9 is inserted into the fixing gap 15 of the horizontal rail member 7, and the second frames 17 of the adjacent solar cell modules 9 are connected to each other by the horizontal rail member. 7 is abutted. A waterproof packing or the like may be held between the contact surfaces as necessary. On the other hand, as solar cell modules 9 adjacent to each other on the mounting rail 5, that is, as butting portions arranged in a direction intersecting with the flow direction, the first frames 23 are opposed to each other with a joint gap 35 therebetween. . Into the joint gap 35, a cover member 39 having a substantially U-shaped cross section and having flanges 37 protruding on both upper sides is inserted, and a cover is provided between the bottom of the cover member 39 and the center of the mounting rail 5. It is screwed and fixed by a member fixing screw 41. Thereby, the separation resistance of the frame portion along the mounting rail 5 of the solar cell module 9 is secured. Then, in the mounting rail 5, the mounting rail 5 is located inside the solar cell module 9 and below the erection site of the horizontal rail member 7.
The gutter 43 extends along the length of the solar cell module 9, and water entering from between the solar cell modules 9 is collected in the gutter 43. With such a mounting structure, a roof structure as shown in FIG. 1 is obtained. In FIG. 1, for convenience of drawing, the solar cell module on the eaves side is installed last, but as can be seen from the description of FIGS. 2 and 3, the solar cell modules are sequentially arranged from the eaves side to the ridge side. It will be attached.

A description will now be given of the main operation of the present invention depending on the flow path of rainwater that has entered from between the solar cell modules 9. Rainwater during rainfall is
Since it flows on the surface of the solar cell module 9 along the flow direction in FIG. 2, it naturally enters from the frame abutting portion. The rainwater that has entered at this portion reaches the horizontal rail member 7 along the butting portion. The rainwater that has reached the horizontal rail member 7 is transmitted along the longitudinal direction and drops from the end of the horizontal rail member. Since the rainwater dripped from the end portion is dripped in the width direction inside of the mounting rail 5 as shown in FIG. 3, it finally reaches the gutter portion 43 of the mounting rail 5 and is discharged to the outside of the roof 3. This is because the mounting rail 5 extends in the flow direction of the roof 3. Also, the infiltration of rainwater between the solar cell modules on the mounting rail is as follows. Most of the rainwater flowing into the groove 45 of the cover member 39 is
The gas flows through the groove 45 to the eaves and is discharged from the roof. On the other hand, some of the rainwater enters through the gap of the cover member fixing screw 41, but flows through the drainage channel 47 provided at the center of the mounting rail 5 to the eaves, and is discharged from the roof. You. In addition, cover member 3
Rainwater infiltration from a gap between the collar portion 37 of the ninth and the first frame 23 is considered. Also in this case, after penetrating into the upper surface 5a of the mounting rail 5, the gutter portion 43 is provided in addition to the upper surface 5a.
And from the gap of the cover member fixing screw 41 to the drainage channel 47, and similarly flows to the eaves and is discharged. As described above, in the present invention, the rainwater never drops on the base plate, and a highly reliable building material-integrated solar cell roof is constructed using a solar cell module having a general-purpose frame structure. can do.

[0011]

As described above, according to the present invention, the connecting and fixing between the solar cell modules is performed by using the horizontal rail members, and at the same time, the infiltrated rainwater is released in the horizontal direction along the horizontal rails, and the flow direction is reduced. The mounting rails located in the area function as gutters and lead to the eaves to discharge. Also,
Attachment of the solar cell module to the horizontal rail member is performed by fitting the frame into the fixing gap, so that the attachment operation can be simplified. In addition, since the horizontal rail member is constructed to be installed between the mounting rails, the detachment strength of the solar cell module is limited to only the mounting rail portion, that is, only the mounting strength between the mounting rail and the roof ground surface (field board). Therefore, the number of target portions for ensuring the reliability in terms of strength is reduced, so that installation work and quality control can be simplified. As described above, by adopting the mounting structure of the present invention, it is possible to use a low-cost solar cell module having a highly versatile frame structure, and realize a building material-integrated structure with high waterproof reliability and low installation effort. be able to.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing the overall structure of a building material-integrated solar cell roof according to the present invention.

FIG. 2 is an explanatory diagram showing a cross section in the flow direction of a building material-integrated solar cell roof according to the present invention.

FIG. 3 is an explanatory diagram showing a cross section in a direction intersecting with the flow direction of the building material-integrated solar cell roof of the present invention.

FIG. 4 is a structural explanatory view of the most common solar cell module commonly seen as a general-purpose product

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Field board 29 Nail 3 Roof 31 Vertical piece 5 Mounting rail 33 Horizontal beam fixing screw 7 Horizontal beam member 35 Joint space 9 Solar cell module 37 Flange section 11 Lower supporting piece 39 Cover member 13 Upper supporting piece 41 Screw for fixing a cover member 15 Fixing gap 43 Gutter 17 Second frame 45 Groove 19 Solar cell panel 47 Drainage channel 21 Fitting groove 23 First frame 25 Extension piece 27 Rafter

Claims (1)

[Claims] A first frame having a fitting groove formed at one end of the solar cell panel and having a second end extending in a direction intersecting the surface of the solar cell panel; Section having a fitting groove, the other end side extending in a direction intersecting with the solar cell panel surface, and an extending piece extending substantially parallel to the solar cell panel surface and inward from the other end portion. And a plurality of solar cell modules, each of which is attached to each of two opposing sides of a square-shaped solar cell panel, extending in one direction of a solar cell module installation surface. A mounting structure for a solar cell module, wherein the first frame is mounted in the same direction as the mounting rail and the second frame is mounted in a direction intersecting the mounting rail with respect to the mounting rail, wherein two adjacent mounting rails are provided. A lower support piece wider than the extension piece of the second frame, and a lower fixing gap between the lower support piece and a fixing gap where the extension piece of the second frame can be sandwiched in its thickness direction. A horizontal rail member having an upper support member projecting from a vertical piece is installed in parallel with the support member, and an extension piece of the second frame of the solar cell module is inserted into the fixing gap of the horizontal rail member. In addition, the second frames of the adjacent solar cell modules are brought into contact with each other on this horizontal rail member, and in the solar cell modules adjacent to each other on the mounting rail, the first frames have a joint gap. In the mounting rail, a gutter extending along the length of the mounting rail extends inward of the solar cell module from the portion where the horizontal rail member is erected, and enters from between the solar cell modules. The water Characterized in that it is configured to be aggregated into Kitoi portion, the mounting structure of a solar cell module.