JP2011236648A - Rail member, solar cell module frame, and installation method of solar cell module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rail member that requires no slide fixture, capable of enhancing workability.SOLUTION: A linear rail member 10 that fixes a solar cell module on an installation site of a building includes a U-shaped groove extending in the longitudinal direction with a U-shaped cross section having an opening on the side remote from the anchoring surface facing the installation site. The groove has a width allowing a tapping screw 30 with self-tapping capability for fixing the solar cell module to create a female screw part on two facing inner walls 11a and 11a of the U-shaped groove for screwing together.

Description

  The present invention relates to a base for fixing a solar cell module to an installation place provided on a roof of a building, a rail member constituting a part of the base, and a method for installing a solar cell module using these. .

  The photovoltaic power generation system has been attracting attention in recent years as a power generation method with a small burden on the global environment such as carbon dioxide emission, and its introduction is progressing. A solar cell module for generating power is generally provided as a panel having a large area of 1 square meter or more, and requires a dedicated frame for installing the module.

  In order to obtain a large amount of power generation, it is necessary to install as many solar cell modules as possible. Therefore, the gantry needs to flexibly correspond to the arrangement of the solar cell modules. In particular, since the roof of a house has a complicated shape and the position of rafters on which the frame can be installed is limited, it is effective to provide the frame with a position adjustment structure in order to efficiently install the module.

  In a pedestal on which a conventional solar cell module is installed, in order to enable position adjustment, a position adjusting mechanism using a bracket that slides in a groove and a bracket that is pressed and fixed across the module on the rail member of the pedestal is provided. (For example, refer to Patent Document 1).

Japanese Patent No. 4099083

  In such a solar cell module mount, in order to adjust the position, it is necessary to install the slide fitting in the groove and to move the slide fitting to the fastening portion at the time of fixing.

  The present invention has been made in order to omit the above-described work, and eliminates the need for a slide fitting and can improve workability and can be installed with a solar cell module mount, a rail member, and a solar cell module. It aims to provide a method.

  A solar cell module gantry according to the present invention is a gantry that fixes a solar cell module to an installation location provided in a building, and engages with an engaging member that engages with an edge of the solar cell module, and penetrates the engaging member. It includes a screw that can be tapped by itself and a long rail member that the screw is fastened at an arbitrary position in the longitudinal direction. The rail member forms a straight line and opens on the opposite side to the fixed surface that is directed to the installation location. A U-shaped groove having a U-shaped cross section is formed extending in the longitudinal direction, and two opposing inner surfaces of the U-shaped groove have a groove width that allows a screw to be screwed together while forming a female thread portion. It is characterized by that.

  Another solar cell module gantry according to the present invention is a gantry that fixes the solar cell module to an installation place provided in a building, and includes an engaging member that engages with an edge of the solar cell module, and an engaging member. Including a screw that passes through and a long rail member that the screw is fastened at an arbitrary position in the longitudinal direction. A U-shaped groove having a U-shaped cross section is formed extending in the longitudinal direction, and a screw engaging groove that can be engaged with a thread of a screw is formed on two opposing inner surfaces of the U-shaped groove. Features.

  Further, the rail member according to the present invention is a rail member that fixes the solar cell module to an installation place provided in a building, and has an opening on the opposite side to a fixed surface that is straight and directed to the installation place. A U-shaped groove having a U-shaped cross section is formed extending in the longitudinal direction, and two opposing inner surfaces of the U-shaped groove are self-tapping screws for fixing the solar cell module while forming a female thread portion. The groove width is screwable.

  Another rail member according to the present invention is a rail member that fixes the solar cell module to an installation place provided in a building, and is on the opposite side to a fixed surface that forms a straight line and is directed to the installation place. A U-shaped groove having a U-shaped cross-section extending in the longitudinal direction facing the opening, and a screw engaging with a thread of a screw for fixing the solar cell module on two opposing inner surfaces of the U-shaped groove It is characterized in that a groove is engraved.

  The solar cell module installation method according to the present invention is an installation method for fixing the solar cell module to an installation location provided in a building, and is opposite to a fixed surface that is straight and directed to the installation location. A U-shaped groove having a U-shaped cross section is formed extending in the longitudinal direction with the opening facing the side, and the two inner surfaces facing each other of the U-shaped groove are self-tapping screws for fixing the solar cell module. Using the rail member that has a groove width that can be screwed together, the rail member is fixed to the installation location with the fixing surface facing the installation location, and the screw that fixes the solar cell module to the U-shaped groove The solar cell module is fixed to the installation place by screwing.

  Further, another solar cell module installation method according to the present invention is an installation method for fixing a solar cell module to an installation location provided in a building, and a straight line is formed on a fixed surface directed to the installation location. A U-shaped groove with a U-shaped cross section is formed extending in the longitudinal direction with the opening facing the opposite side, and is engaged with the thread of a screw for fixing the solar cell module on the two opposing inner surfaces of the U-shaped groove. Using the rail member in which the possible screw engagement groove is engraved, fix the rail member to the installation location with the fixing surface facing the installation location, and engage the screw that fixes the solar cell module with the screw engagement groove The solar cell module is fixed to the installation location.

  According to this invention, if it is a position along the axial groove of the rail part, it can be screwed as it is after determining the position arrangement of the solar cell module, so that a pilot hole processing, a slide fitting installation, etc. This secondary work can be omitted, and the solar cell module can be easily installed.

FIG. 1 is a perspective view of Embodiment 1 of the solar cell module mount of the present invention. 2 is a cross-sectional view of the A surface of FIG. FIG. 3 is a perspective view of the rail member according to the first embodiment. FIG. 4 is a perspective view showing a specific state in which the solar cell module is fixed by a gantry. FIG. 5 is a perspective view showing a state in which a tap screw penetrating the inner flange portion of the frame member is directly fastened on the rail member without using the engaging member. FIG. 6 is a perspective view showing a state in which another rail member is used so as to be orthogonal to the rail member. FIG. 7 is a perspective view of Embodiment 2 of the solar cell module mount of the present invention. 8 is a cross-sectional view of the B surface of FIG. FIG. 9: is a perspective view of the rail member which shows Embodiment 3 of the solar cell module mount of this invention. FIG. 10 is a perspective view of Embodiment 4 of the solar cell module mount of the present invention.

Embodiment 1 FIG.
FIG. 1 is a perspective view of Embodiment 1 of the solar cell module mount of the present invention. 2 is a cross-sectional view of the A surface of FIG. FIG. 3 is a perspective view of the rail member. The gantry 50 of the present embodiment includes an engaging member 20 that engages with an edge of the solar cell module, a tapping screw (screw) 30 that penetrates the engaging member 20, and the tapping screw 30 at an arbitrary position in the longitudinal direction. It is comprised from the elongate rail member 10 to fasten.

  The rail member 10 is formed by extrusion processing of an aluminum-based alloy, and is formed on the opposite side of the main body 11 formed in an elongated linear shape and having a U-shaped cross section over the entire length, and the U-shaped opening of the main body 11. And a flange portion 12. When the rail member 10 is fixed to an installation surface such as a roof, the U-shaped opening of the main body 11 is fixed upward. When the flange portion 12 is fixed to the installation surface, the flange portion 12 extends in a direction extending along the installation surface and forms a fixed surface having a large area on the back surface so as to be stably fixed. That is, in the rail member 10, a U-shaped groove having a U-shaped cross section is formed extending in the longitudinal direction with the opening facing the opposite side to the fixed surface directed to the installation location.

  The tapping screw 30 is made of a steel-based material such as stainless steel, and is screwed while being tapped (threaded) by itself when screwed into a fastening portion where a pilot hole is formed, for example.

  The two inner surfaces 11a, 11a opposite to each other of the U-shaped opening of the main body 11 of the rail member 10 have an appropriate groove width so that when the tapping screw 30 is screwed, the tapping screw 30 is screwed together while forming the female screw portion. It has become. Further, an engaging screw engaging groove having a triangular cross-section having the same pitch as the thread of the tapping screw 30 so that the tapping screw 30 can easily form a female screw portion from the openings of the two inner surfaces 11a, 11a. 11b and 11b are engraved over the entire length.

  As shown well in FIG. 3, when the tapping screw 30 is screwed into the intermediate portion in the depth direction of the screw engaging grooves 11b, 11b of the two inner surfaces 11a, 11a, the thin-walled portion 11c that breaks through this is the screw engaging groove. 11b is formed so as to bridge between 11b. When the tapping screw 30 is screwed, the tapping screw 30 is completely restricted from moving in the longitudinal direction of the rail member 10 by breaking through the thin portion 11c. The thickness of the thin portion 11c is preferably about one quarter of the screw portion diameter of the tapping screw 30 from the viewpoint of workability. In addition, irregularities are formed on the upper surface of the thin portion 11c. As a result, tapping is facilitated, and workability and stability of the fastening state are improved.

  The solar cell module mount 50 having such a configuration is first screwed to a rafter of a roof, for example, with a wood screw (not shown) inserted into a through hole 12a opened in the flange portion 12 of the rail member 10, The rail member 10 is fixed to the installation surface of the roof, and then the edge of the solar cell module 80 is sandwiched between the engaging member 20 and the rail member 10, and the tapping screw 30 penetrating the engaging member 20 is inserted into the rail member 10. The solar cell module 80 is installed on the roof by screwing in and fastening.

  FIG. 4 is a perspective view showing a specific state in which the solar cell module is fixed by the gantry 50. The solar cell module 80 includes a flat solar cell panel 81 formed by resin-sealing a plurality of solar cells not shown, and a frame member 82 that surrounds the outer edge of the solar cell panel 81 over the entire circumference. Has been. The frame member 82 has a U-shaped cross section, and an edge holding portion 82a that sandwiches the outer edge portion of the solar cell panel 81 over the entire circumference, and a plate-like portion that extends from the back surface of the edge holding portion 82a to the back surface side of the solar cell panel 81. 82b, an inner flange portion 82c formed to extend inward from the lower end of the plate-like portion 82b, and an outer flange portion 82d formed to extend outward from the lower end of the plate-like portion 82b. ing. The tapping screw 30 is screwed into the rail member 10 while one end of the engaging member 20 is in contact with the upper surface of the outer flange portion 82d, and the outer flange portion 82d is sandwiched between the lower surface of the engaging member 20 and the upper surface of the rail member 10. In this way, the solar cell module 80 is fixed to the rail member 10.

  5 and 6 show other uses of the rail member 10, and FIG. 5 shows that the tapping screw 30 penetrating the inner flange portion 82c of the frame member 82 is used for the rail member 10 without using the engaging member 20. FIG. It is a perspective view which shows a mode that it fastens directly on, FIG. 6 is a perspective view which shows a mode that other rail member 10B is piled up and used so that it may orthogonally cross on rail member 10A. In the usage of FIG. 5, the number of parts can be reduced. Moreover, in the usage of FIG. 6, the position can be adjusted in the vertical and horizontal directions with respect to the main surface of the solar cell module. As described above, the gantry 50 may be used in various ways in addition to the basic usage shown in FIG.

  In the present embodiment, by adopting the configuration as described above, it is possible to fasten the screw at an arbitrary location along the U-shaped groove, so that the solar cell module is optimally arranged. In the position adjustment, after determining the position in the direction along the groove, secondary work such as drilling of a pilot hole or installation of a slide fitting can be omitted, and workability can be improved. Moreover, compared with the system using a slide metal fitting, since the slide metal fitting can be eliminated, the cost of the entire gantry can be reduced.

  In the present embodiment, as described above, the rail member 10 is manufactured by extrusion of an aluminum alloy. Since the extrusion process of the aluminum-based alloy can directly produce various cross-sectional shapes relatively inexpensively as long as they have the same cross-sectional shape in the axial direction, the screw engagement grooves 11b and 11b can be easily produced without additional processing. it can. In addition, aluminum alloys are superior in environmental resistance and strength compared to non-metallic materials such as fiber reinforced resins, and are suitable for solar cell module mounts used outdoors for a long period of 10 years or more. When the rail member 10 is made of an aluminum alloy, the tapping screw 30 may be made of a steel material such as stainless steel. In that case, the tapping screw 30 is preferably subjected to a corrosion prevention coating in order to avoid corrosion due to a potential difference with aluminum.

  In addition, in the rail member 10 of this Embodiment, in order to suppress the movement of the tapping screw 30 in the longitudinal direction completely, the thin portion 11c is provided, but even if there is no thin portion 11c, the tapping screw 30 The thin-walled portion 11c may be omitted when the movement can be prevented and the fastening can be performed satisfactorily.

  Further, in the rail member 10 of the present embodiment, screw engagement grooves 11b and 11b are engraved over the entire length from the openings of the two inner surfaces 11a and 11a so that the tapping screw 30 can easily form the female screw portion. Yes. Therefore, the thread formation is facilitated when the tapping screw 30 is fastened, and the workability and the stability of the fastened state when the screw is fastened are improved. However, the screw engagement grooves 11b and 11b are necessarily required if the internal thread portion can be sufficiently formed without the screw engagement grooves 11b and 11b to fasten the tapping screw 30 by selecting the material. It is not a thing. On the contrary, even if the female thread portion cannot be formed at all, if the screw engagement grooves 11b and 11b are formed into a complete shape that can be screw-engaged, not only the tapping screw 30 but also a general screw. Can also be concluded.

Embodiment 2. FIG.
FIG. 7 is a perspective view of Embodiment 2 of the solar cell module mount of the present invention. 8 is a cross-sectional view of the B surface of FIG. In the gantry 55 of the present embodiment, the engaging member 25 has a U-shaped cross section that covers the main body 11 of the rail member 10, and has two inner surfaces 25 a and 25 a that are in contact with the two outer surfaces of the main body 11. have. In addition, an uneven slip stopper 25b is formed at the tip of the opening of the U-shaped wall surface in contact with the flange portion 12 of the rail member 10 to restrict movement in the longitudinal direction.

  Thus, in the present embodiment, the engaging member 25 fixed by the tapping screw 30 is fitted so as to cover the outside of the fastening position of the groove-shaped tapping screw 30 of the U-shaped groove of the rail member 10. Yes. As a result, the rigidity of the engagement member 25 prevents the female thread portion forming position of the U-shaped groove from expanding in the radial direction of the tapping screw 30, and the fastening strength can be improved.

Embodiment 3 FIG.
FIG. 9: is a perspective view of the rail member which shows Embodiment 3 of the solar cell module mount of this invention. In the mount of the solar cell module of the present embodiment, the U-shaped grooves formed by the two screw engaging grooves 11b facing each other are formed in parallel in the rail member 15.
By adopting such a structure, even if screw fastening fails or the solar cell module may be reattached multiple times, even if the female screw part of the U-shaped groove is crushed, this female screw part is repaired Without this, it becomes possible to fasten the engaging member (not shown) at the same position in the axial direction.

  In addition, when there are no plurality of U-shaped grooves in the rail member as in this embodiment, when screwing in the same place, the thread is repaired using a thread forming tool such as an insert. I need to work.

Embodiment 4 FIG.
FIG. 10 is a perspective view of Embodiment 4 of the solar cell module mount of the present invention. In the solar cell module mount 60 of the present embodiment, the screw engaging portion of the tapping screw 30 is filled with a hardening filler 41 that prevents loosening. This prevents the tapping screw 30 from loosening and further restricts the movement in the longitudinal direction. In addition, intrusion of rainwater or the like is prevented, and corrosion of the engaging member 20 and the tapping screw 30 is reduced.

  The method of filling the periphery of the tapping screw 30 with the cured filler 41 may be not only the filling of the cured filler 41 but also a method of stopping a small member that can be fitted into the U-shaped groove with an adhesive.

  As described above, the present invention provides a frame for fixing a solar cell module to an installation location provided on a roof of a building, a rail member that constitutes a part of the frame, and a solar cell module installed using these. Suitable for the method.

10, 10A, 10B, 15 Rail member 11 Main body 11a Inner surface 11b Screw engaging groove 11c Thin wall portion 12 Flange portion 12a Through hole 20, 25 Engaging member 25a, 25a Inner surface 30 Tapping screw 41 Curing filler 50, 55, 60 Sun Battery module mount 80 Solar cell module 81 Solar cell panel 82 Frame member 82a Edge holding portion 82d Outer flange portion 82c Inner flange portion 82b Plate-like portion

Claims (18)

It is a rail member that fixes the solar cell module to the installation location provided in the building,
A U-shaped groove having a U-shaped cross section is formed to extend in the longitudinal direction with the opening facing the opposite side to the fixed surface that is formed in a straight line and is directed to the installation location, and is opposed to the two of the U-shaped grooves. A rail member, wherein the inner surface has a groove width that allows a screw to be tapped for fixing the solar cell module to be screwed while forming a female thread portion. It is a rail member that fixes the solar cell module to the installation location provided in the building,
A U-shaped groove having a U-shaped cross section is formed to extend in the longitudinal direction with the opening facing the opposite side to the fixed surface that is formed in a straight line and is directed to the installation location, and is opposed to the two of the U-shaped grooves. A rail member, wherein a screw engaging groove that can be engaged with a thread of a screw that fixes the solar cell module is formed on an inner surface. A flange portion formed so as to protrude along the installation location is provided on the opposite side of the U-shaped groove, and the flange portion is fastened to the installation location and fixed to the installation location. Item 3. The rail member according to item 1 or 2. The rail member according to any one of claims 1 to 3, wherein a thin-walled portion through which the screw pierces when the screw is fastened is formed in the U-shaped groove. The rail member according to claim 4, wherein irregularities are formed on a surface of the thin portion. The rail member according to any one of claims 1 to 5, wherein the U-shaped grooves are provided in parallel in a plurality of rows. The rail member according to any one of claims 1 to 6, wherein a hardening filler is filled between the screw and the U-shaped groove. The rail member according to any one of claims 1 to 7, wherein the rail member is made of aluminum or an aluminum-based alloy, and the screw is made of a steel-based material such as stainless steel. . It is a stand that fixes the solar cell module to the installation location provided in the building,
An engaging member that engages with an edge of the solar cell module;
A screw that can be tapped by itself penetrating the engaging member;
A long rail member for fastening the screw at an arbitrary position in the longitudinal direction,
The rail member is
A U-shaped groove having a U-shaped cross section is formed to extend in the longitudinal direction with the opening facing the opposite side to the fixed surface that is formed in a straight line and is directed to the installation location, and is opposed to the two of the U-shaped grooves. An inner surface has a groove width in which the screw can be screwed together while forming a female screw portion. It is a stand that fixes the solar cell module to the installation location provided in the building,
An engaging member that engages with an edge of the solar cell module;
A screw passing through the engaging member;
A long rail member for fastening the screw at an arbitrary position in the longitudinal direction,
The rail member is
A U-shaped groove having a U-shaped cross section is formed to extend in the longitudinal direction with the opening facing the opposite side to the fixed surface that is formed in a straight line and is directed to the installation location, and is opposed to the two of the U-shaped grooves. A solar cell module mount, wherein a screw engagement groove that can be engaged with a thread of the screw is formed on an inner surface. The engagement member has a U-shaped cross section, and has two inner surfaces that respectively contact outer surfaces of two U-shaped wall surfaces of the rail member. Solar cell module mount. The uneven | corrugated shaped anti-slip which contacts the said rail member and controls a movement of a longitudinal direction is formed in the front-end | tip of the opening part of the U-shaped wall surface of the said engagement member. 11. A solar cell module mount according to item 11. An installation method for fixing a solar cell module to an installation place provided in a building,
A U-shaped groove having a U-shaped cross section is formed to extend in the longitudinal direction with the opening facing the opposite side to the fixed surface that is formed in a straight line and is directed to the installation location, and is opposed to the two of the U-shaped grooves. Using a rail member whose inner surface is a groove width that can be screwed while a screw that can be tapped to fix the solar cell module forms a female screw part,
Fixing the rail member to the installation location with the fixed surface facing the installation location;
A method of installing a solar cell module, wherein the screw for fixing the solar cell module is screwed into the U-shaped groove to fix the solar cell module at the installation location. An installation method for fixing a solar cell module to an installation place provided in a building,
A U-shaped groove having a U-shaped cross section is formed to extend in the longitudinal direction with the opening facing the opposite side to the fixed surface that is formed in a straight line and is directed to the installation location, and is opposed to the two of the U-shaped grooves. On the inner surface, using a rail member in which a screw engaging groove that can be engaged with a screw thread fixing the solar cell module is formed,
Fixing the rail member to the installation location with the fixed surface facing the installation location;
An installation method for a solar cell module, wherein a screw for fixing the solar cell module is engaged with the screw engagement groove to fix the solar cell module at the installation location. A flange portion projecting along the installation location is provided on the opposite side of the U-shaped groove of the rail member, and the rail member is fixed to the installation location by fastening the flange portion to the installation location. The installation method of the solar cell module according to claim 13 or 14, wherein: The thin-walled portion is formed in advance in the U-shaped groove, and when the screw is engaged with the screw engaging groove, the screw penetrates the thin-walled portion. The installation method of the solar cell module of any one of 15. The method for installing a solar cell module according to any one of claims 13 to 16, wherein a cured filler is filled between the screw and the U-shaped groove after the screw is fastened. The method for installing a solar cell module according to any one of claims 13 to 17, wherein the rail member is manufactured by extrusion processing using aluminum or an aluminum-based alloy as a material.

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