Construction method of flexible solar cell module, and frame body used in the same

Abstract

To provide a construction method of a flexible solar cell module that can be easily constructed by anyone and allows for flexible maintenance at an installation site.SOLUTION: A construction method of a flexible solar cell module M using a frame body F to be installed on a specified installation surface X comprises: an installation step S1 in which the frame body F is laid on the installation surface X; and an attachment step S2 in which the flexible solar cell module M is attached to the frame body F and its back surface is directly opposed to the installation surface X. The attachment step S2 includes an abutment step S21 in which each of a plurality of protruding portions B protruding from the frame body F is inserted into a plurality of attachment holes H formed on an outer peripheral edge of the flexible solar cell module M, and the outer peripheral edge of the flexible solar cell module M is abutted against the frame body F.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a method for installing a lightweight and thin, so-called flexible solar cell module, and a frame body used therefor. [Background technology]

[0002] BACKGROUND ART Photovoltaic power generation, which can generate electricity without placing a heavy burden on the environment by utilizing solar energy, which is a renewable energy source, has been gaining popularity worldwide.

[0003] Furthermore, while solar power generation is primarily used industrially, with solar cell modules installed on factory roofs using special mounting systems, it is also becoming popular among ordinary households for purposes such as saving on utility bills, preparing for power outages during disasters, and earning income by selling electricity.

[0004] In particular, in recent years, solar power generation using flexible solar cell modules has been attracting attention as it is easy to use in ordinary households due to its advantages such as portability, storability, and wide range of installation locations.

[0005] However, when introducing photovoltaic power generation using flexible solar cell modules into an ordinary home, it is difficult for a person without construction experience to carry out the construction smoothly.

[0006] For this reason, the inventor of the present invention invented the method of installing a flexible solar cell module, which is described in Patent Document 1 and can be installed easily and safely by anyone.

[0007] According to this installation method, the installer can easily install the flexible solar cell module on the installation surface by performing an adhesive layer formation process or the like, without performing fastening work using fixing metal fittings or the like. Furthermore, the tape application process allows the flexible solar cell module to be temporarily adhered with double-sided tape until the adhesive has sufficiently dried, thereby preventing the installation position from shifting while the adhesive is drying. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Patent No. 7302921 Summary of the Invention [Problem to be solved by the invention]

[0009] However, even with the construction method described in Patent Document 1, the following problems still exist.

[0010] That is, if the installation location is a flat area such as a flat roof as described in Patent Document 1, once the flexible solar cell module is installed (bonded), it is basically difficult to remove the flexible solar cell module from the installation location. However, the installation location is often waterproofed, requiring periodic maintenance. However, given the above-mentioned difficulty in removal, there is a problem in that it is difficult to carry out periodic maintenance on the installation location.

[0011] The present invention has been made in consideration of the above-described circumstances, and aims to provide a method for installing a flexible solar cell module, which can be easily installed by anyone and allows flexible maintenance at the installation site, and a frame body to be used therein. [Means for solving the problem]

[0012] In order to solve the above problems, the present invention provides a method for installing a flexible solar cell module using a frame body that is installed on a predetermined installation surface, comprising: a laying step of laying the frame body on the construction surface; an attachment step of attaching the flexible solar cell module to the frame body so that the back surface of the module directly faces the installation surface, The mounting process includes a contact process in which a plurality of protruding portions protruding from the frame body are inserted into a plurality of mounting holes formed on the outer peripheral edge of the flexible solar cell module, and the outer peripheral edge of the flexible solar cell module is contacted against the frame body.

[0013] According to the present invention, in the installation process, the installer uses each protrusion and each mounting hole to abut the outer edge of the module against the frame body so that the back surface of the frame body of the flexible solar cell module directly faces the installation surface. This allows the installer to easily and flexibly install the module and perform maintenance at the installation location.

[0014] In other words, according to the present invention, when attaching the module to the frame body, the installer uses multiple mounting holes (grommet holes) that are pre-formed in a typical flexible solar cell module and inserts them into each protrusion. This reduces the deviation of the module's position on the construction surface, reduces the number of components required for construction, and simplifies construction. Furthermore, when performing maintenance on the construction surface, the contractor simply needs to remove the insertion between each protrusion and each mounting hole, thereby exposing the construction surface and allowing for flexible performance of periodic maintenance, etc.

[0015] In a preferred embodiment of the present invention, the attaching step includes a connecting step of detachably connecting the flexible solar cell module to the frame body, The connecting step is a step of fastening the flexible solar cell module to the frame body by screwing a nut onto the male-threaded protrusion.

[0016] By adopting such a configuration, the mounting manner of the module to the frame body is stabilized, positional deviation is further suppressed, and the module can be easily removed from the frame body by anyone without requiring skilled techniques.

[0017] In a preferred embodiment of the present invention, the laying process includes an adhesive layer forming process of providing an adhesive layer on the opposing surface of the frame body that faces the construction surface, and an adhesive process of adhering the frame body to the construction surface via the adhesive layer.

[0018] With this configuration, the frame body is attached to the construction surface without the need for fastening work using fixing metal fittings or the like, so the installer can easily carry out this work.

[0019] In a preferred embodiment of the present invention, the adhesive layer forming step includes a tape applying step of applying a double-sided tape to the opposing surface, and an adhesive applying step of applying an adhesive to the opposing surface.

[0020] With this configuration, the module can be temporarily adhered with double-sided tape until the adhesive has sufficiently dried during the tape application process, thereby preventing the installation position from shifting while the adhesive is drying.

[0021] In a preferred embodiment of the present invention, the frame body is made up of a plurality of elongated bodies that are separately formed.

[0022] With this configuration, for example, even when modules of different sizes are to be installed on an installation surface, the installation process can be carried out flexibly regardless of the difference in size.

[0023] In a preferred embodiment of the present invention, the construction surface is an exterior wall.

[0024] With this configuration, the exterior wall can be used as a power generation area, making it easy to increase the amount of power generated by a single building.

[0025] In a preferred embodiment of the present invention, the laying step further includes an outer wall fastening step of fastening the frame body to the outer wall.

[0026] With this configuration, even if the adhesive strength of the module to the exterior wall decreases due to, for example, strong winds or deterioration of the adhesive layer over time, there is no risk of the module falling from the exterior wall, ensuring the safety of the surrounding area and allowing for quick re-adhesion work.

[0027] The present invention also provides a frame body used in installing a flexible solar cell module, comprising: a frame body main body that is laid on a predetermined construction surface; and a plurality of protruding portions that protrude from the frame body main body and are inserted into a plurality of mounting holes formed on an outer periphery of the flexible solar cell module; The frame body main body is provided with a rail portion extending along the outer periphery of the flexible solar cell module, Each of the protrusions is configured to be slidable along the rail portion.

[0028] According to the present invention, the number and position of the protruding portions can be flexibly changed depending on the position and number of mounting holes of the flexible solar cell module to be applied, thereby improving the versatility and ease of installation of the frame body.

[0029] In a preferred embodiment of the present invention, the frame body further includes a pressing portion formed separately from the frame body main body, The protruding portion has a male thread portion, The pressing portion is configured to be able to clamp the flexible solar cell module together with the frame body by being fastened to the frame body main body by the protruding portion and a nut that is screwed onto the protruding portion.

[0030] With this configuration, in addition to being fixed via the mounting holes, the flexible solar cell module can be more firmly fixed to the frame body main body using the clamping portion, greatly improving the stability of the installation state after installation is completed. [Effects of the Invention]

[0031] According to the present invention, it is possible to provide a method for installing a flexible solar cell module and a frame body used therein, which can be easily installed by anyone and allows for flexible maintenance at the installation site. [Brief explanation of the drawings]

[0032] [Figure 1] 1 is a schematic perspective view of a flexible solar cell module according to each embodiment of the present invention. [Figure 2] FIG. 2 is a schematic perspective view of a frame body according to each embodiment of the present invention. [Figure 3] FIG. 1 is an explanatory diagram of a construction method according to a first embodiment of the present invention. [Figure 4] FIG. 1 is an explanatory diagram of a construction method according to a first embodiment of the present invention. [Figure 5] FIG. 1 is an explanatory diagram of a construction method according to a first embodiment of the present invention. [Figure 6] FIG. 1 is an explanatory diagram of a construction method according to a first embodiment of the present invention. [Figure 7] FIG. 1 is an explanatory diagram of a construction method according to a first embodiment of the present invention. [Figure 8] 1 is a flowchart of a construction method according to a first embodiment of the present invention. [Figure 9] FIG. 10 is an explanatory diagram of a construction method according to a second embodiment of the present invention. [Figure 10] FIG. 10 is an explanatory diagram of a construction method according to a second embodiment of the present invention. [Figure 11] 10 is a flowchart of a construction method according to a second embodiment of the present invention. [Figure 12] 10A and 10B are diagrams showing a modified example of the frame body according to the first embodiment of the present invention. [Figure 13] 10A and 10B are explanatory diagrams of a construction method using a modified example of the frame body. [Figure 14] 10A and 10B are explanatory diagrams of a construction method using a modified example of the frame body. [Figure 15] 10A and 10B are explanatory diagrams of a construction method using a modified example of the frame body. [Figure 16] 10A and 10B are explanatory diagrams of a construction method using a modified example of the frame body. [Figure 17] 10A and 10B are explanatory diagrams of a construction method using a modified example of the frame body. [Figure 18] 10A and 10B are explanatory diagrams of a construction method using a modified example of the frame body. [Figure 19] 10A and 10B are explanatory diagrams of a construction method using a modified example of the frame body. [Figure 20] 10A and 10B are explanatory diagrams of a construction method using a modified example of the frame body. [Figure 21] 10 is a flowchart of a construction method using the modified example of the frame body. DETAILED DESCRIPTION OF THE INVENTION

[0033] Hereinafter, a method for installing a flexible solar cell module (hereinafter simply referred to as a module) according to each embodiment of the present invention will be described with reference to the drawings. It should be noted that the following embodiments are merely examples of the present invention, and the present invention is not limited to the following embodiments. In these figures, the symbol M indicates a module according to each embodiment, and the symbol F indicates a frame body.

[0034] <Configuration> The configurations of the module M and frame body F used in this construction method will be described below with reference to FIGS.

[0035] As shown in FIG. 1, the module M used in each embodiment is a thin panel of approximately rectangular shape that has been commonly used in recent years, and has a structure in which multiple photovoltaic power generation cells (power generation elements) made of silicon are sandwiched between resin films. This makes the module M lightweight and flexible, and allows it to be bent according to the installation location.

[0036] Additionally, the outer periphery of the module M is provided with a plurality of mounting holes (grommet holes) H through which fixing members such as bolts are inserted. More specifically, four mounting holes H are formed on each long side of the outer periphery of the module M along the long side direction, and three mounting holes H are formed on each short side along the short side direction, for a total of fourteen mounting holes H.

[0037] At least one junction box (not shown) is provided on the outer periphery of the module M, which is electrically connected to a charging control device (not shown) separately installed near the installation location. In addition, although the mounting holes H are elongated holes in this embodiment, they may be configured to be approximately circular so as to fit the cross-sectional shape of the protrusions B described below. This effectively prevents the position of the module M from shifting when the protrusions B are inserted into the mounting holes H.

[0038] As shown in FIG. 2, the frame body F used in each embodiment is made up of a plurality of elongated bodies that are separately constructed. More specifically, the frame body F has a pair of first frame bodies F1 that contact the outer periphery of the module M on its short side, and a pair of second frame bodies F2 that contact the outer periphery of the module M on its long side.

[0039] The first frame body F1 and the second frame body F2 each include a substantially plate-shaped frame body main body F1a, F2a, and a protruding portion B protruding from one side surface of each of the frame body main body F1a, F2a.

[0040] The frame body main bodies F1a and F2a are made of a lightweight material such as aluminum, and have rounded corners. This makes handling easier during application and also reduces the risk of accidentally damaging the application surface.

[0041] The protrusion B is configured as a male screw by having a thread cut on its outer circumferential surface over substantially the entire length. Three protrusions B protrude from the frame body main body F1a and four protrusions B protrude from the frame body main body F2a at approximately equal intervals so as to correspond to the mounting holes H of the module M.

[0042] Furthermore, each of the protruding portions B is provided slightly closer to one of the long sides with respect to the center line that divides each of the frame body main bodies F1a, F2a into two in the short side direction. This makes it possible to distinguish the area where the tape is attached and the area where the adhesive is applied from the top surface based on the position of each protrusion B in the adhesive layer forming process S11 described below, improving convenience when forming the rectangular frame body in the adhesive process S12 described below.

[0043] <Construction method S according to embodiment 1> Hereinafter, a method S for installing a module M according to the first embodiment will be described with reference to FIGS. In this embodiment, an example will be described in which the predetermined construction surface X on which the module M is constructed is the rooftop surface R of a building A on which waterproofing has been performed.

[0044] <<Laying process S1>> First, the installer carries out the installation step S1 of attaching the frame body F to the roof surface R. In more detail, the contractor carries out an adhesive layer formation process S11 in which an adhesive layer G is formed on the opposing surface (bottom surface) of the frame body F facing the roof surface R, and an adhesion process S12 in which the frame body F is adhered to the roof surface R via the adhesive layer G.

[0045] <<<Adhesive layer formation step S11>>> Here, in the adhesive layer forming step S11, a tape applying step S11a in which double-sided tape is applied to the bottom surface of each of the frame body main bodies F1a and F2a, and an adhesive applying step S11b in which adhesive is applied to this bottom surface are carried out.

[0046] Note that Figure 3(a) is an oblique view of the first frame body F1 viewed from the bottom side, Figure 3(b) is a cross-sectional view showing the state in which the bonding process S12 is carried out, and Figure 3(c) is a bottom view of the frame body F laid on the roof surface R. In addition, Figure 3(a) illustrates the adhesive layer formation process S11 and the adhesive process S12 for one first frame body F1, but the installer will perform similar processes for the other first frame body F1 and each second frame body F2.

[0047] In the tape application step S11a, the installer divides the bottom surface of each frame body main body F1a, F2a into two equal parts by a line extending along the long side, as shown in Figure 3(a), and applies double-sided tape g1 to the area on the side where each protrusion B is not provided. In the adhesive application step S11b, the installer applies adhesive g2 to the other region, for example, as shown in FIG. 3(a).

[0048] In addition, before carrying out the adhesive layer formation process S11, the contractor may carry out a primer application process in which a primer is applied to the entire back surface of each frame body main body F1a, F2a, thereby increasing the adhesion of the double-sided tape g1 and adhesive g2 to each frame body main body F1a, F2a. Furthermore, it is preferable to use a silicone-based sealant or a modified silicone-based sealant as the adhesive g2, taking into consideration weather resistance, water resistance, and the like. Furthermore, in the bonding step S12 described below, in order to ensure that the double-sided tape g1 is properly bonded to the roof surface R and to shorten the drying time of the adhesive g2, it is preferable that the coating thickness of the adhesive g2 be approximately the same as the thickness of the double-sided tape g1 or several mm thicker than the thickness of the double-sided tape g1.

[0049] <<<Adhesion process S12>>> In the bonding step S12, the builder bonds each of the first frame bodies F1 and each of the second frame bodies F2 to the rooftop surface R by pressing the adhesive layer G of each of the first frame bodies F1 and each of the second frame bodies F2 against the rooftop surface R, as shown in FIG. 3(b). At this time, the builder adheres each of the first frame bodies F1 and each of the second frame bodies F2 to the roof surface R so that they form a frame body that is approximately rectangular in plan view, as shown in FIG. 3(c).

[0050] At this time, it is preferable that the installer adheres the first frame bodies F1 and the second frame bodies F2 together so that the double-sided tape g1 is disposed on the inner peripheral surface side of the frame bodies. This prevents the double-sided tape g1 from being exposed to the outside air when the frame body F is laid on the roof surface R, and allows the adhesive strength of the double-sided tape g1, which is less weather-resistant than the adhesive g2, to be maintained, thereby further improving the stability of the installation position until the adhesive g2 has sufficiently dried.

[0051] <<Installation process S2>> Next, the installer performs an attachment step S2 in which the module M is detachably connected to the frame body F. In detail, the installer performs an abutment process S21 in which each protrusion B is inserted into each mounting hole of the module M and the periphery of the module M is abutted against the frame body F, and a connection process S22 in which the module M is detachably connected to the frame body F.

[0052] In the abutment process S21, the installer inserts each mounting hole H of the module M into each protruding portion B of the frame body F (each first frame body F1 and each second frame body F2), as shown in Figure 4(a), and abuts the peripheral edge of the module M against the upper surface of each frame body main body F1a, F2a, thereby achieving the state shown in Figure 4(b). As a result, the rear surface of the module M and the roof surface R (the area surrounded by the frame body F in a plan view) directly face each other.

[0053] In the connecting step S22, the installer fastens the module M to the frame body F by screwing nuts n onto the respective protruding portions B, as shown in FIG.

[0054] The installer performs the above-described series of steps in the same manner for a plurality of modules M and frame bodies F, resulting in the state shown in FIG. 6, for example. As shown in Figure 6, in order to save space and achieve high power generation efficiency in a small area, it is preferable for the installer to lay multiple frame bodies F, which are configured as approximately rectangular frame bodies, adjacent to each other along the long side direction or the short side direction.

[0055] When maintenance is required for the waterproofing of the rooftop surface R, the installer simply removes the nuts n from the respective protruding portions B, and releases the abutment state between the module M and the frame body F, as shown in FIG. This exposes the area of ​​the roof surface R surrounded by the frame body F, allowing the installer to carry out maintenance work on the waterproofing construction.

[0056] In Figure 7, all modules M installed on the roof surface R are shown removed from each frame body F, but the contractor may also remove only the modules M covering the area where maintenance is desired.

[0057] FIG. 8 is a flowchart showing the above-mentioned series of steps.

[0058] <Effects of the First Embodiment> According to this embodiment, as described above, when performing maintenance on the rooftop surface R, by removing the module M from the frame body F, a predetermined area of ​​the rooftop surface R is exposed, making it easy to perform regular maintenance, etc.

[0059] Furthermore, since the mounting holes H that are pre-formed in a general module M are used, the number of components required for installation can be reduced, making installation easier.

[0060] Furthermore, since the module M is fastened to the frame body F by screwing the nut n onto the protruding portion B, anyone can easily attach and detach the module M to and from the frame body F without requiring skilled techniques.

[0061] Furthermore, the adhesive layer formation process S11 and the bonding process S12 eliminate the need for fastening work using fixing brackets or the like when attaching the frame body F to the roof surface R, allowing the contractor to carry out this work easily.

[0062] Furthermore, the tape application process S11a and the adhesive application process S11b allow the module M to be temporarily adhered with the double-sided tape g1 until the adhesive g2 has sufficiently dried, thereby preventing the installation position from shifting while the adhesive g2 is drying.

[0063] Furthermore, since the frame body F is composed of multiple elongated bodies (first frame body F1, second frame body F2) that are constructed separately, for example, even when modules M of different sizes are installed on the roof surface R, the installation process S2 can be carried out flexibly regardless of the difference in size.

[0064] <Construction method S according to embodiment 2> Hereinafter, a method S for installing a module M according to the second embodiment will be described with reference to FIGS. In this embodiment, an example will be described in which the predetermined construction surface X on which the module M is constructed is an exterior wall W of a building A that has been subjected to waterproofing construction. In this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof will be simplified.

[0065] <<Laying process S1>> First, the builder carries out the installation step S1 of attaching the frame body F to the exterior wall W. In detail, the contractor carries out an adhesive layer formation process S11 in which an adhesive layer G is provided on the opposing surface (bottom surface) of the frame body F facing the exterior wall W, an adhesion process S12 in which the frame body F is adhered to the exterior wall W via the adhesive layer G, and an exterior wall fastening process S13 in which the frame body F is fastened to the exterior wall W. The adhesive layer forming step S11 and the bonding step S12 in this embodiment are performed in the same manner as in the first embodiment, and therefore, a description thereof will be omitted.

[0066] <<<Outer wall fastening process S13>>> In this embodiment, after the bonding step S12, the builder performs an exterior wall fastening step S13 in which the frame body F is fastened to the exterior wall W. In more detail, the contractor fastens the frame body F to the exterior wall W by driving anchor bolts c into the exterior wall W through fastening holes t drilled on the upper and lower end sides of each second frame body F2, as shown in Figure 9.

[0067] In this embodiment, each second frame body F2 is slightly extended compared to embodiment 1, and when it is joined to each first frame body F1 to form a rectangular frame, the upper end side of each second frame body F2 is configured to protrude when viewed from the front. In this embodiment, fastening holes t are drilled in these protruding portions, but the fastening holes t may be drilled on the upper end side of each second frame body F2 as in the first embodiment. Similarly, fastening holes t may be drilled in each of the first frame bodies F1, and anchor bolts c may be inserted through each of the fastening holes t.

[0068] <<Installation process S2>> Next, the installer performs an attachment step S2 in which the module M is detachably connected to the frame body F. In detail, the installer performs an abutment process S21 in which each protrusion B is inserted into each mounting hole of the module M and the periphery of the module M is abutted against the frame body F, and a connection process S22 in which the module M is detachably connected to the frame body F.

[0069] The contact step S21 and the connection step S22 in this embodiment are performed in the same manner as in the first embodiment, and therefore, a description thereof will be omitted. Furthermore, the laying step S1, the mounting step S2, and removal of the module M during maintenance can be carried out using a mechanical scaffold such as a portable gondola. Also, as in embodiment 1, each module M installed on the exterior wall W is electrically connected to a junction box and a charging control device installed, for example, on the rooftop surface R via a specified cable, so that it is able to supply power to the desired equipment.

[0070] FIG. 11 is a flowchart showing the above-mentioned series of steps.

[0071] <Effects of the Second Embodiment> According to this embodiment, the same effects as those of the first embodiment can be obtained, and the outer wall W can be used as a power generation area, so that the amount of power generation for one building A can be easily improved.

[0072] Furthermore, the exterior wall fastening process S13 eliminates the risk of the module M falling off the exterior wall W, even if its adhesive strength to the exterior wall W is reduced due to, for example, strong winds or deterioration of the adhesive layer over time, ensuring the safety of the surrounding area and enabling the re-adhesion work to be carried out quickly.

[0073] <Example of change> The shapes and dimensions of the components shown in the above-described embodiment are merely examples and can be modified in various ways based on design requirements, etc.

[0074] For example, in the first embodiment, the connecting step S22 is not necessarily required, and the construction may be completed by performing only the abutting step S21. As a result, each protrusion B interferes with each mounting hole H, thereby suppressing deviation of the position of the module M on the construction surface X (rooftop surface R).

[0075] Furthermore, in each embodiment, an example has been shown in which the frame body F is adhesively fixed to the construction surface X, but this is not limiting, and the frame body F may be fixed using predetermined fixing metal fittings or the like.

[0076] In addition, in each embodiment, an example has been shown in which two first frame bodies F1 and two second frame bodies F2 are used to construct a frame body F having an approximately rectangular frame shape, but it is also possible to lay only the first frame bodies F1 or only the second frame bodies F2 approximately parallel to each other and attach modules M to them.

[0077] In addition, in each embodiment, an example is shown in which four modules M (and corresponding frame bodies F) are installed on the roof surface R or the exterior wall W, but this number can naturally be increased or decreased depending on the area of ​​the construction surface X, etc.

[0078] Furthermore, the tape applying step S11a and the adhesive applying step S11b may be performed in any order.

[0079] Hereinafter, modified examples of the frame body F and a method of installing the module M using the frame body F will be described with reference to FIGS.

[0080] <Configuration of the modified example> The configuration of a modified example of the frame body F will be described below with reference to FIG. 12(a-1) is an enlarged oblique view of the end portion of the frame body main body Fa, (a-2) is a front view of the frame body main body Fa, (b) is an overall oblique view of the protruding portion Fb, and (c) is an overall oblique view of the pressing portion Fc.

[0081] The frame body main body Fa is made up of a plurality of elongated bodies formed separately, similar to the frame body F in each of the above embodiments. More specifically, the frame body main body Fa has a pair of first frame bodies F1 (see Figure 13) that abut against the outer peripheral edge of the short side of the module M, and a pair of second frame bodies F2 (see Figure 13) that abut against the outer peripheral edge of the long side of the module M.

[0082] The first frame body F1 and the second frame body F2 have the same configuration except that their overall lengths are different. In this modified example, the first frame body F1 and the second frame body F2 are collectively referred to as a frame body main body Fa.

[0083] As shown in Figure 12, the frame body F has, in addition to the frame body main body Fa, a plurality of protruding portions Fb formed separately from the frame body main body Fa, and a pressing portion Fc formed separately from the frame body main body Fa.

[0084] As shown in FIGS. 12(a-1) and 12(a-2), the frame body main body Fa is provided with a rail portion K extending along the outer periphery of the module M. More specifically, three rail portions K are provided at predetermined intervals in front view on the frame body main body Fa, each extending over the entire length. In addition, each rail portion K has an inverted T shape when viewed from the front, and is open at the top.

[0085] In addition, the frame body main body Fa has lightening portions h extending over the entire length of the frame body main body Fa on both sides of the short side of each rail portion K. This reduces the overall weight of the frame body main body Fa. In addition, extension portions j are formed on both short-side sides of the upper surface of the frame body main body Fa over the entire length of the frame body main body Fa in the longitudinal direction, thereby stabilizing the module M when it is placed on it.

[0086] As shown in FIG. 12(b), each of the protruding portions Fb is a so-called bolt having a male thread portion and a head portion.

[0087] As shown in FIG. 12(c), the pressing portion Fc is a component formed into a U-shaped cross section by bending each longitudinal side of a substantially rectangular thin plate-like body. The pressing portion Fc is provided with three insertion holes p along the longitudinal direction, through which the protruding portions Fb are inserted.

[0088] <Modified example of construction method S> Hereinafter, a method S for installing a module M using the frame body F having the above-described configuration will be described with reference to FIGS.

[0089] <<Laying process S1>> First, the installer carries out a laying step S1 in which the frame body main body Fa is attached to a predetermined construction surface X. In more detail, the contractor carries out an adhesive layer formation process S11 in which an adhesive layer G is provided on the opposing surface (bottom surface) of the frame body main body Fa that faces the construction surface X, and an adhesion process S12 in which the frame body F is adhered to the roof surface R via the adhesive layer G.

[0090] In the adhesive layer forming step S11, for example, it is preferable that the worker applies adhesive g2 to the outer edge of the bottom surface of each frame body main body Fa, as shown in Figure 13, and then attaches double-sided tape g1 along the inner surface of the adhesive g2. This provides the effect of suppressing exposure of the double-sided tape g1 to the outside air within one frame body main body Fa, as shown in the first embodiment. In this embodiment, in order to increase the adhesive strength, a double-sided tape g1 is also attached to the center of the bottom surface of each frame body main body Fa along the longitudinal direction.

[0091] The bonding step S12 is almost the same as in the above-described embodiments, but in this modified example, an example of laying a frame body main body Fa for attaching two modules M will be shown.

[0092] That is, in this example, the builder uses three first frame bodies F1 and four second frame bodies F2 to lay the frame body main body Fa in the shape of the character sun (see FIG. 15). This creates two enclosed areas for mounting the modules M.

[0093] <<Positioning process S2>> Next, as shown in FIG. 14, the installer inserts each of the protruding portions Fb into the rail portion K of the frame body main body Fa. More specifically, the installer inserts the protrusion Fb into the rail portion K with the head of the protrusion Fb facing downwards so that the male screw portion protrudes upward from the open portion of the rail portion K, as shown in FIG.

[0094] Next, as shown in FIG. 15, the installer slides the protrusions Fb within the rails K in accordance with the number and positions of the mounting holes H of the module M, and positions the module M relative to the frame body main body Fa. In this example, as in the above embodiments, a total of 14 mounting holes H are formed on each long side of the outer peripheral edge of the module M, four along the long side direction, and three along the short side direction on each short side.

[0095] For this reason, the installer inserts the four protrusions Fb into the inner rail portions K in each region of the first frame bodies F1 at both ends, and positions them by sliding. Furthermore, the installer inserts the three protruding portions Fb into the inner rail portions K in each region of each second frame body F2, and positions them by sliding. Furthermore, since the central first frame body F1 is configured to divide each area, the installer inserts the four protrusions Fb into the rail portions K on both sides of the central first frame body F1 and positions it by sliding. This results in the state shown in FIG.

[0096] <<Installation process S3>> Next, as shown in FIGS. 16 and 17, the installer carries out an attachment step S3 in which each module M is detachably connected to the frame body main body Fa. In detail, the installer performs an abutment process S31 in which each protrusion Fb is inserted into each mounting hole H of the module M and the peripheral edge of the module M is abutted against the frame body main body Fa, and a connection process S32 in which the module M is detachably connected to the frame body main body Fa.

[0097] The contact step S31 and the connection step S32 are the same as those in the above-described embodiments, and therefore, the description thereof will be omitted. Also, Figures 16 and 17 show an example of attaching a module M to one area formed by four frame body main bodies Fa, but the installer will similarly attach a module M to the other area and then perform the pressing process S4.

[0098] Here, in the mounting step S3, each protrusion Fb can slide freely along each rail portion K, so even if the position of the protrusion Fb is misaligned with respect to the mounting hole H, the installer can easily complete the abutment step S31 by sliding the protrusion Fb appropriately. In addition, the installer can easily increase or decrease the number of protruding portions Fb in accordance with the number of mounting holes H of the module M.

[0099] <<Pressing process S4>> Next, as shown in FIGS. 18 and 19, the installer performs a pressing step S4 in which the peripheral edge of the module M is pressed down using the pressing portion Fc. More specifically, the installer inserts the protruding portions Fb into the rail portions K of the first frame body F1 and slides them to the vicinity of the periphery of the module M. The installer places the holding portion Fc on the first frame body F1 with the opening facing downward. At this time, the holding portion Fc is placed so that the protruding portions Fb are inserted into the insertion holes p and the lower end surface of the holding portion Fc abuts against the periphery of the module M.

[0100] Then, the installer fastens the pressing portion Fc to the first frame body F1 by screwing nuts n onto the respective protruding portions Fb protruding from the insertion holes p. As a result, the module M is sandwiched between the holding portion Fc and the first frame body F1.

[0101] Here, the clamping manner differs between the first frame bodies F1 at both ends and the first frame body F1 in the center. That is, in the first frame bodies F1 at both ends, as shown in FIG. 18, one module M is sandwiched between them, so only two protrusions Fb are required for this purpose. On the other hand, in the first central frame body F1, as shown in FIG. 19, two adjacently placed modules M are sandwiched at once, and therefore the number of protrusions Fb used for this purpose is three.

[0102] The installer performs the pressing step S4 on the four corners of each module M, resulting in the state shown in FIG. In this modified example, an example of laying two modules M is shown, but the number of frame body main bodies Fa will naturally increase or decrease depending on the number of modules laid, and the number of rail sections K that one frame body main body Fa has can also be flexibly changed in design.

[0103] FIG. 21 is a flowchart showing the above-mentioned series of steps.

[0104] <Effects of this modification> According to this modified example, the number and positions of the protruding portions Fb can be flexibly changed depending on the position and number of the mounting holes H of the applied module M, improving the versatility of the frame body F and ease of installation.

[0105] Furthermore, due to the configuration of the protrusion portion Fb and the configuration of the clamping portion Fc, in addition to fixing via the mounting hole H, the module M can be more firmly fixed to the frame body main body Fa using the clamping portion Fc, greatly improving the stability of the installation state after construction is completed.

[0106] In addition, since the construction surface X in this modified example is required to slide the protruding portion Fb along the rail portion K, the construction surface X is preferably the roof surface R as in the first embodiment.

[0107] The word "abbreviated" in the application documents is a concept that means that the shape that follows has been chamfered or rounded, and that the elements that make up the shape have been deformed or changed in length within a range that does not impede the purpose of the shape. [Explanation of symbols]

[0108] M Flexible solar cell module (module) H Mounting hole F frame body F1 First Frame Body F2 Second frame body F1a, F1b frame body B Projection part G adhesive layer g1 double-sided tape g2 adhesive n Nut Fa Frame body Fb protrusion Fc Presser foot A Building R(X) Rooftop surface W(X) Exterior wall

Claims

1. A method for installing a flexible solar cell module using a frame body installed on a predetermined installation surface, comprising: a laying step of laying the frame body on the construction surface; an attachment step of attaching the flexible solar cell module to the frame body so that the back surface of the module directly faces the installation surface, The mounting process includes a contact process in which a plurality of protruding portions protruding from the frame body are inserted into a plurality of mounting holes formed on the outer periphery of the flexible solar cell module, and the outer periphery of the flexible solar cell module is contacted to the frame body.

2. the attaching step includes a connecting step of detachably connecting the flexible solar cell module to the frame body, 2. The method for installing a flexible solar cell module according to claim 1, wherein the connecting step is a step of fastening the flexible solar cell module to the frame body by screwing a nut onto the male-threaded protrusion.

3. 3. The method for installing a flexible solar cell module according to claim 2, wherein the installation process includes an adhesive layer forming process of providing an adhesive layer on an opposing surface of the frame body that faces the installation surface, and an adhesion process of adhering the frame body to the installation surface via the adhesive layer.

4. The method for installing a flexible solar cell module according to claim 3 , wherein the adhesive layer forming step includes a tape applying step of applying a double-sided tape to the opposing surface, and an adhesive applying step of applying an adhesive to the opposing surface.

5. The method for installing a flexible solar cell module according to claim 2 , wherein the frame body is composed of a plurality of elongated bodies that are separately formed.

6. 6. The method for installing a flexible solar cell module according to claim 2, wherein the installation surface is an exterior wall.

7. The flexible solar cell module installation method according to claim 6 , wherein the laying step further includes an outer wall fastening step of fastening the frame body to the outer wall.

8. A frame body used for installing a flexible solar cell module, a frame body main body that is laid on a predetermined construction surface; and a plurality of protruding portions that protrude from the frame body main body and are inserted into a plurality of mounting holes formed on an outer periphery of the flexible solar cell module; The frame body main body is provided with a rail portion extending along the outer periphery of the flexible solar cell module, The frame body, wherein each of the protruding portions is configured to be slidable along the rail portion.

9. Further, the frame body further includes a pressing portion formed separately from the frame body main body, The protruding portion has a male thread portion, The frame body according to claim 8, wherein the pressing portion is configured to be fastened to the frame body main body by the male screw portion and a nut threaded onto the male screw portion, thereby being able to clamp the flexible solar cell module together with the frame body main body.

Images