JP5490634B2 - Solar cell module fixture and method for fixing solar cell module on roof - Google Patents

Description

  The present invention relates to a solar cell module fixture for fixing a solar cell module on a roof and a method for fixing the solar cell module on the roof.

  In order to quickly recover the cost required for installing the solar cell module, it is required to install as many solar cell modules as possible on the roof surface and increase the amount of power obtained by solar power generation. In order to install such a large number of solar cell modules on the roof, it is only necessary to arrange the solar cell modules from the first stage of the eaves. In this way, the solar cell modules from the first stage of the eaves In the case of arranging the solar cell module, since the work is performed near the eaves, it is required to facilitate the installation of the solar cell module.

  Patent Document 1 below discloses that an eave side end portion (a locking piece of a front cover) of a solar cell module arranged at the eaves is held by an eaves tip blowing prevention tool.

JP 2009-299450 A

  However, the inclination angle of the front end portion of the eaves tip blowing prevention device is substantially the same as the inclination angle of the roof. It cannot be locked to the eaves tip blow-off prevention device. That is, in the roof structure disclosed in Patent Document 1, when the solar cell module is fixed with the eaves-end blowing prevention device, the position of the locking piece of the front cover exceeds the tip of the eaves-up blowing prevention device. After the solar cell module is slid and sent to the eaves side, it is necessary to lift the solar cell module to the building side. In this operation, the solar cell module is largely fed to the eaves side, so that the solar cell module may not be easily and efficiently installed (see Table 15 of Patent Document 1).

  It is an object of the present invention to provide a solar cell module fixture and a method for fixing a solar cell module on a roof that can facilitate and increase the efficiency of work when the solar cell module is installed at the eaves of a roof.

  In order to solve the above-described problems, the solar cell module fixture of the present invention includes a locking piece support portion that supports a locking piece provided on the frame portion of the solar cell module, and the locking piece support portion. An installation fixing portion that is installed and fixed on the roof. The locking piece support portion includes a load receiving portion that receives the upper surface of the locking piece, and an eaves eave standing at an eave side end of the load receiving portion. And a guide portion that is inclined downward and guides the locking piece downward.

  If it is the said structure, the said guide part will guide the said locking piece in the said solar cell module to the downward direction instead of the direction parallel to a roof inclination. Here, when the solar cell module is rotated on the roof while maintaining the state where the rear end side is placed on the roof tile on the roof when the solar cell module is arranged on the roof, the above-described locking of the front end side of the solar cell module is performed. The position of the piece is displaced downward rather than in a direction parallel to the roof slope. Therefore, when the solar cell module is rotated while maintaining the state where the rear end side of the solar cell module is placed on the roof tile on the roof, the locking piece is guided downward by the guide portion and the The locking piece can be guided to the load receiving portion. That is, it is possible to lock the locking piece of the solar cell module to the load receiving portion without performing an operation of sliding the solar cell module and feeding it largely in the eaves direction. Thereby, the work when installing the solar cell module at the eaves of the roof can be facilitated and improved in efficiency.

  In the solar cell module fixture described above, when the fixture is disposed on the roof and the inclination angle of the rising of the guide portion with respect to the horizontal line is θ, the range is 45 ° <θ ≦ 84 °. Is good.

  With such a configuration, the guide portion serves to guide the locking piece downward by rotating the solar cell module while maintaining the state where the rear end side of the solar cell module is placed on the roof tile on the roof. You will be able to perform well.

  In the solar cell module fixture described above, another load receiving portion that receives the lower surface of the locking piece may be formed below the load receiving portion. With such a configuration, wind load can be received by the load receiving portion, and snow load can also be received by the separate load receiving portion.

  In the solar cell module fixture described above, the installation fixing part has a first part located on the roof surface and a second part straddling a horizontal rail located on the roof surface, and the back surface of the first part A convex portion that forms a gap between the back surface and the roof surface may be formed. With such a configuration, raindrops on the roof surface can be transmitted to the eaves through the first part without being blocked by the solar cell module fixture. In such a solar cell module fixture, the horizontal rail may be fixed to the second portion.

  Alternatively, in the solar cell module fixture described above, the installation fixing portion may be provided with a positioning portion for positioning the solar cell module fixture in contact with a horizontal rail disposed on the roof surface. According to this, it is possible to skillfully arrange the solar cell module at the correct position on the basis of the horizontal rail.

  Moreover, the method for fixing the solar cell module on the roof according to the present invention fixes any one of the above solar cell module fixtures to the roof, and uses the solar cell module having a locking piece on the frame as the solar cell module fixture. The solar cell module is arranged in the first stage of the eaves, and the solar cell module is rotated while maintaining the state where the rear end side of the solar cell module is placed on the roof tile on the roof. The locking piece is guided by the guide portion of the solar cell module fixture and locked to the locking piece support portion.

  With this method, it is possible to lock the locking piece of the solar cell module to the load receiving part without sliding the solar cell module and feeding it in the direction of the eaves. The work when installing the module at the eaves of the roof can be made easier and more efficient.

  If it is this invention, there exists an effect that the work at the time of installing a solar cell module in the eaves of a roof can be made easy and efficient.

It is the perspective sectional view showing an example of the solar cell module to which the solar cell module fixture of the present invention is applied. It is the figure which showed the solar cell module fixture which concerns on one Embodiment of this invention, Comprising: (A) of the figure is a side view of a solar cell module fixture, (B) of the figure is the perspective view. is there. It is the block diagram which showed the roof structure using the solar cell module fixing tool of FIG. (A), (B), and (C) of the same figure are explanatory drawings showing a procedure for fixing the solar cell module on the roof using the solar cell module fixture of FIG. It is explanatory drawing explaining the angle range of the guide part in the solar cell module fixing tool of FIG. It is the block diagram which showed the roof structure using the solar cell module fixing tool of other embodiment.

  Next, a solar cell module fixture and a method for fixing a solar cell module on a roof according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. In addition, the solar cell module fixture according to the present invention and the method for fixing the solar cell module on the roof are not limited to those shown in the following embodiments, and can be implemented with appropriate modifications without departing from the scope of the invention. is there.

  As shown in FIG. 1, a tile-type solar cell module (hereinafter simply referred to as a solar cell module) 1 has a structure in which a peripheral edge of a solar cell panel portion 14 is surrounded by a frame 11. The solar cell panel unit 14 includes a glass plate unit sandwiching the photovoltaic layer, a wiring unit for taking out the electric power generated in the photovoltaic layer, and the like. The frame 11 has a facing portion that sandwiches the solar cell panel portion 14 from the front and back sides, and a side plate portion that faces the end surface of the solar cell panel portion 14. A side plate portion extension portion 11 a is formed in the side plate portion of the underwater portion of the frame 11. A locking piece 12 is fixed to the side plate portion extension portion 11 a with screws 13. The locking piece 12 has a substantially L-shape having a joint portion that contacts the side plate portion extension portion 11a and a locking portion that folds and enters from the joint portion to the lower side of the solar cell panel portion 14. Yes. The locking piece 12 is not limited to the screw 13, and may be fixed to the side plate portion extension portion 11 a by, for example, a rivet, or may be integrally formed with the frame 11.

  Locking projections 15, 15 are provided at positions above the side plate portion extension 11 a in the frame 11, and the front cover 16 is locked to the locking projections 15, 15.

  The frame 11 is not limited to a U-shaped cross section as shown in FIG. 1, and is not limited to a frame having a step between the facing portion of the frame 11 and the surface of the solar cell panel portion 14. (For example, see the solar cell module 1 in FIG. 4). Further, as shown in FIG. 4, the water-side module locking structure in the solar cell module 1 is a back surface side locking for fixing the back surface side of the solar cell module 1 to the roof tile 108 arranged on the roof. Although it consists of the metal fitting 17 and the front surface side metal fitting 18 for engaging the engagement piece of the upper solar cell module, it is not limited to such a structure.

  As shown in FIGS. 2A and 2B and FIG. 3, the solar cell module fixture 2 according to this embodiment is a latch into which a latch piece 12 provided on the frame 11 of the solar cell module 1 is inserted. It has the piece support part 21 and the installation fixing | fixed part 22 which fixes this latching piece support part 21 to the roof 101. FIG. The locking piece support portion 21 has a first load receiving portion 21 </ b> A that receives the lower surface of the locking piece 12 and a second load receiving portion 21 </ b> B that receives the upper surface of the locking piece 12.

  In the solar cell module fixture 2 described above, the first load receiving portions 21A and the second load receiving portions 21B are alternately arranged. Such an alternately arranged structure can be obtained, for example, by performing shearing and pressing on the flat plate portion before the locking piece support portion 21 is obtained.

  Since stress tends to concentrate on the boundary line between the first load receiving portion 21A and the second load receiving portion 21B that are alternately arranged in this manner, in this embodiment, the first load receiving portion 21A and the second load receiving portion 21B are arranged. One reinforcing rib 23 having an arc-shaped cross section that crosses the boundary with the load receiving portion 21B is formed. The reinforcing rib 23 can be formed by the above press working. In addition, instead of such a single reinforcing rib 23, reinforcing ribs may be individually provided at positions on each boundary line.

  A guide portion 21C is formed on the distal end side of the second load receiving portion 21B. The guide portion 21C is raised slightly in front of the distal end of the first load receiving portion 21A and inclined downward toward the eaves side. A receiving portion 21D that is bent so as to be substantially parallel to the second load receiving portion 21B is formed on the upper end side of the guide portion 21C.

  The installation fixing portion 22 of the solar cell module fixture 2 is provided in contact with the upper surface of a pedestal 102 (in this application, Hiroko Mai is also a form of the pedestal) 102 disposed on the roof 101, and screw nails 103. To be fixed to the pier 102. The installation fixing portion 22 has a through hole 25 through which the screw nail 103 is inserted. Further, the installation fixing portion 22 is provided with a positioning portion 24 for positioning the solar cell module fixture 2 in contact with the pier 102. The positioning part 24 is formed by shearing a part of the installation fixing part 22 and bending the part by connecting to the installation fixing part 22. By having such a positioning part 24, the solar cell module fixture 2 can be skillfully arranged at a correct position with reference to the pier 102.

  A nose cover 104 is disposed on the eaves side of the roof 101, and a gutter 105 is fixed to the nose cover 104 with a nail 106. The rain gutter 105 is located below the underwater side of the solar cell module 1 arranged at the first stage of the eaves.

  Here, the snow load when the snow is accumulated on the solar cell module 1 is a force for pressing the solar cell module 1 downward. In this embodiment, while the snow load is light, the receiving portion 21D hits the frame 11 of the solar cell module 1, so the receiving portion 21D receives the load of the solar cell module 1. When the guide portion 21C becomes heavier and tilts, the first load receiving portion 21A receives the lower surface of the locking piece 12 formed on the frame 11 of the solar cell module 1, so that the snow load of the solar cell module 1 is reduced. It is transmitted from the locking piece 12 to the frame 11. Further, the wind load when the wind blows to the eaves is a force that lifts the solar cell module 1 upward, but the second load receiving portion 21B receives the upper surface of the locking piece 12, so the wind load is It is transmitted from the locking piece 12 of the solar cell module 1 to the frame 11.

  Next, fixing of the solar cell module 1 on the roof will be described with reference to FIG.

  First, as shown in FIG. 4A, the locking piece 12 of the solar cell module 1 is attached to the solar cell module fixture 2 in a state where the back surface side locking bracket 17 of the solar cell module 1 is placed on the roof bar 108. Is placed on the upper end portion of the guide portion 21C or on the receiving portion 21D.

  Here, when the solar cell module is rotated while maintaining the state in which the back-side locking metal member 17 of the solar cell module 1 is placed on the roof rail 108 on the roof 101, the above-described locking on the tip side of the solar cell module 1 is performed. The piece 12 is displaced not in a direction parallel to the roof inclination but downward. Strictly speaking, when the solar cell module is disposed at an inclination of 19 ° with respect to the horizontal line, in FIG. 4, the locking piece 12 is inclined at an angle of approximately 19 ° counterclockwise with respect to the vertical direction. Displace the position.

  On the other hand, the guide portion 21C is inclined so as to guide the locking piece 12 in the solar cell module 1 downward rather than in a direction parallel to the roof inclination. The range of the inclination angle of the guide portion 21C will be described later. In addition, the inclination angle of the rising of the guide portion 21C with respect to the horizontal line when the solar cell module fixture 2 is placed on the roof is defined as θ.

  As described above, when the solar cell module 1 is rotated while maintaining the state where the back-side locking metal fitting 17 is placed on the roof tile 108, the locking piece 12 is guided downward by the guide portion 21C. Since the guide portion 21C is inclined as described above, the solar cell module 1 moves slightly in the eaves direction. The amount of movement is a value obtained by multiplying the length of the guide portion 21C by the cosine of the inclination angle θ, and is about 7 mm in this embodiment. Moreover, in this embodiment, the stopper piece 17a is formed in the back surface of the said back surface side metal fitting 17, and the said movement is restrict | limited by the said stopper piece 17a.

  Then, as shown in FIG. 4B, when the locking piece 12 of the solar cell module 1 approaches the lower end of the guide portion 21C (the tip of the second load receiving portion 21B), the solar cell module is formed by the stopper piece 17a. This is a state in which the movement of 1 is restricted or a state just before the movement is restricted. After this state, the locking piece 12 of the solar cell module 1 exceeds the lower end of the guide portion 21C by the weight of the solar cell module 1 or by slightly pressing down the eaves side of the solar cell module 1 downward.

  When the locking piece 12 of the solar cell module 1 exceeds the lower end of the guide portion 21C, the locking piece 12 faces and is locked to the second load receiving portion 21B. In this state, the solar cell module 1 is positioned at an inclination of 19 ° with respect to the horizontal line.

  And as shown to (C) of FIG. 4, the solar cell module 1 is pulled up to the ridge side, and the locking piece 12 is located in the lower surface side of the 2nd load receiving part 21B. At this position, a gap equivalent to 7 mm of the moving amount is formed between the stopper piece 17a and the roof tile 108. The rear end side of the solar cell module 1 is fixed to the roof tile 108 by driving the screw nails 103 into the back-side locking bracket 17 after the lifting.

  Thus, when the solar cell module 1 is arranged at the first stage on the eave side of the roof, the above-described locking of the solar cell module 1 can be performed without performing an operation of largely sending the solar cell module 1 in the eaves direction. The piece 12 can be locked to the locking piece support portion 21. Thereby, the operation | work when installing the solar cell module 1 in the eaves side of the roof 101 can be made easy and efficient. Moreover, since the solar cell module is not greatly fed to the eaves side, the safety of work is also improved.

  FIG. 5 is an explanatory diagram showing the range of the inclination angle θ with respect to the horizontal line in the guide portion 21C of the solar cell module fixture 2. As shown in FIG. In addition, as an inclination angle of a roof, there exist 32 degrees, 24 degrees, 14 degrees etc., for example, The fixture 2 of FIG. 2 can be used in common with respect to the roof from which these inclination differs. The inclination of the guide portion 21C is as follows. When the solar cell module 1 rotates, the solar cell module 1 (the locking piece 12) is pushed by its own weight or when the operator pushes the solar cell module 1 downward from above. Moves along the inclination of the guide portion 21C. Further, the smaller the inclination angle θ, the longer the length of the guide portion 21 </ b> C. The longer the length, the deeper the guide portion 21 </ b> C enters the solar cell module 1. In consideration of these matters, the inclination angle θ of the guide portion 21C is set to 44 ° or more, and preferably larger than 45 °.

  On the other hand, when the inclination angle θ of the guide portion 21C exceeds 90 °, the guide portion 21C cannot function sufficiently as a guide. In order for the guide portion 21C to function as a guide for the locking piece 12, the inclination angle θ of the guide portion 21C is less than 90 °, and desirably 84 ° or less.

  That is, even when the solar cell module fixture 2 is used in common when the roof inclination angle is different, the solar cell module fixture 2 is placed on the roof in a posture where the solar cell module fixture 2 rises with respect to the horizontal line of the guide portion 21C. As shown in FIG. 5, the inclination angle θ is set to be within a range of 44 ° ≦ θ <90 °. Desirably, it is set to be within a range of 45 ° <θ ≦ 84 °.

  FIG. 6 is a cross-sectional view showing a roof structure using the solar cell module fixture 3 of another embodiment. The solar cell module fixture 3 includes a locking piece support portion 31 and an installation fixing portion 32 that fixes the locking piece support portion 31 to the roof 101. The locking piece support portion 31 includes a first load receiving portion 31A that receives the lower surface of the locking piece 12 of the solar cell module 1, a second load receiving portion 31B that receives the upper surface of the locking piece 12, Have The first load receiving portions 31A and the second load receiving portions 31B are alternately arranged. A guide portion 31C is formed on the distal end side of the second load receiving portion 31B. The guide portion 31C is raised slightly in front of the distal end of the first load receiving portion 31A and inclined downward toward the eaves side. The rising inclination angle θ of the guide portion 31C is also in a range of 44 ° ≦ θ <90 °, and preferably in a range of 45 ° <θ ≦ 84 °. Further, a receiving portion 31D that is bent so as to be substantially parallel to the second load receiving portion 31B is formed on the distal end side of the guide portion 31C. A reinforcing rib 33 is formed on the boundary line between the first load receiving portion 31A and the second load receiving portion 31B.

  On the other hand, the installation fixing part 32 of the solar cell module fixture 3 has a first part 32A located on the roof 101 and a second part 32B straddling the horizontal rail 30 located on the roof 101. An inverted frustoconical convex portion 34 is formed on the back surface of the first portion 32A to form a gap between the back surface and the surface of the roof 101. The convex portion 34 can be formed by pressing the installation fixing portion 32. In the case of this pressing, the convex portion 34 has a shape opposite to the inverted truncated cone shape on the surface side of the first portion 32A. A certain mortar-shaped recess is formed. If it is the structure which has such a convex part 34, the raindrop which propagates on the roof 101 passes below the said 1st site | part 32A, without being blocked | interrupted by the installation fixing | fixed part 32 of said solar cell module fixing tool 3. Can be passed on. In addition, a through hole through which the screw nail 103 is inserted is formed at a central portion of the convex portion 34 and a predetermined portion of the second portion 32B.

  The crosspiece 30 is made of, for example, the same material as that of the solar cell module fixture 3 (for example, steel), and is formed by bending a flat plate of this material to form three surfaces so that the cross section is substantially U-shaped. It was made to become. The horizontal rail 30 is arranged on the roof 101 with the edge portion on the opening side facing down. A slit (not shown) is formed in the edge portion so that the raindrop can pass therethrough.

  The horizontal rail 30 may be fixed to the second portion 32B. With such a configuration, the installation work of the solar cell module fixture 3 on the roof 101 can be performed quickly. The fixing can be performed using rivets or welding. Further, the horizontal rail 30 is also formed with a through hole corresponding to the nail through hole formed in the second portion 32B.

  Moreover, in the roof structure shown in FIG. 6, the water stop member 107 is provided between the lower surface of the solar cell panel part 14 and the solar cell module fixture 3 in the solar cell module 1, and the first load receiving part 31A. And intrusion of rainwater from a gap generated at the base portion between the first load receiving portion 31B and the second load receiving portion 31B. The water stop member 107 is made of a rubber material having flexibility. The water stop member 107 is not limited to the case where the solar cell module fixture 3 is used, but can be provided when a solar cell module fixture of another form is used.

  In the example demonstrated above, although the solar cell module fixture provided with both the 1st load receiving part and the 2nd load receiving part was shown, the fixture which does not have a 1st load receiving part is also employable.

DESCRIPTION OF SYMBOLS 1 Solar cell module 11 Frame part 12 Locking piece 14 Solar cell panel part 17 Back surface side metal fitting 17a Stopper piece 2 Solar cell module fixture 21 Locking piece support part 21A 1st load receiving part 21B 2nd load receiving part 21C Inclined portion 21D Receiving portion 22 Installation fixing portion 23 Reinforcing rib 24 Positioning portion 3 Solar cell module fixture 31 Locking piece support portion 31A First load receiving portion 31B Second load receiving portion 31C Inclining portion 31D Receiving portion 32 Installation fixing portion 32A 1st site | part 32B 2nd site | part 33 Reinforcement rib 102 Horizontal beam 108 Tile beam

Claims (7)

  A locking piece supporting portion for supporting the locking piece provided on the frame portion of the solar cell module; and an installation fixing portion for installing and fixing the locking piece support portion on the roof. In the stop piece support portion, a load receiving portion that receives the upper surface of the locking piece, a guide portion that guides the locking piece downward by inclining down to the eave side at the eave side end of the load receiving portion, A solar cell module fixture having the above structure.   The solar cell module fixture according to claim 1, wherein 45 ° <θ ≦ 84 °, where θ is a rising inclination angle of the guide portion with respect to a horizontal line in a posture in which the fixture is disposed on the roof. A solar cell module fixture characterized by being in range.   The solar cell module fixture according to claim 1 or 2, wherein another load receiving portion for receiving the lower surface of the locking piece is formed below the load receiving portion. Module fixture.   The solar cell module fixture according to any one of claims 1 to 3, wherein the installation fixing portion extends across a first part located on the roof surface and a horizontal rail located on the roof surface. The solar cell module fixture according to claim 1, wherein a convex portion that forms a gap between the back surface and the roof surface is formed on the back surface of the first portion.   5. The solar cell module fixture according to claim 4, wherein the horizontal rail is fixed to the second part.   The solar cell module fixture according to any one of claims 1 to 3, wherein the solar cell module fixture is positioned on the installation fixture in contact with a horizontal rail arranged on the roof surface. A solar cell module fixture having a positioning part to be provided. By fixing the solar cell module fixture of any one of Claims 1-6 to a roof, and fixing the solar cell module which has a locking piece in a frame part with the said solar cell module fixture. The solar cell module is arranged in the first stage of the eaves, and the solar cell module is rotated while maintaining the state where the rear end side of the solar cell module is placed on the roof tile on the roof. A method for fixing a solar cell module on a roof, wherein the stop piece is guided by a guide portion of the solar cell module fixture and locked to the locking piece support portion.

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