Flexible solar cell module installation method and frame body used therein

Abstract

To provide a method for installing a flexible solar cell module, which can be easily installed by anyone and also allows flexible maintenance of the installation site, and a frame body used therefor. [Solution] A construction method for a module M using a frame body having a frame body main body F1 installed on a specified construction surface, multiple protruding protrusions F2, and a separately constructed pressing portion F3, comprising an installation process for laying the frame body on the construction surface, an abutment process for abutting the outer edge of the module M against the frame body, a positioning process for sliding the multiple protrusions F2 along the extension direction of the frame body main body F1 to position it relative to the frame body main body F1, and a pressing process for pressing the outer edge of the module M with the pressing portion F3, wherein the pressing process is a process for clamping the module M by fastening the pressing portion F3 to the frame body main body F1 with the male threaded portion provided on each protrusion F2 and the nut n threaded onto it.

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 in the event of a disaster, 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] To achieve this object, the present disclosure provides a method for installing a flexible solar cell module [1] to [5] and a frame body [6].

[0013] [1] A method for installing a flexible solar cell module using a frame body having a frame body main body to be installed on a predetermined installation surface, a plurality of protruding portions protruding from the frame body main body, and a pressing portion formed separately from the frame body main body, a laying step of laying the frame body on the construction surface; a contacting step of contacting an outer peripheral edge of the flexible solar cell module with the frame body; a positioning step of sliding the plurality of protrusions along the extension direction of the frame body main body to position the plurality of protrusions relative to the frame body main body; a pressing step of pressing an outer periphery of the flexible solar cell module with the pressing portion, The pressing step is a step of fastening the pressing portion to the frame body main body using male screw portions provided on each of the protruding portions and nuts threaded onto the male screw portions, thereby sandwiching the flexible solar cell module together with the frame body main body. How to install flexible solar modules.

[0014] [2] The laying step includes an adhesive layer forming step of providing an adhesive layer on an opposing surface of the frame body main body that faces the construction surface, and an adhering step of adhering the frame body main body to the construction surface via the adhesive layer. [1] A method for installing a flexible solar cell module according to the present invention.

[0015] [3] The adhesive layer forming step includes a tape attaching step of providing a double-sided tape on the opposing surface, and an adhesive applying step of providing an adhesive on the opposing surface. [2] A method for installing a flexible solar cell module according to the present invention.

[0016] [4] The frame body main body is composed of a plurality of elongated bodies formed separately. A method for installing a flexible solar cell module according to any one of [1] to [3].

[0017] [5] The construction surface is an exterior wall. A method for installing a flexible solar cell module according to any one of [1] to [4].

[0018] [6] A frame body used for installing a flexible solar cell module, The cable ties include a frame body main body to be laid on a predetermined construction surface, a plurality of protruding portions protruding from the frame body main body, and a pressing portion formed separately from the frame body main body, 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 protruding portions is configured to be slidable along the rail portion, The protruding portion has a male thread portion, The pressing portion is configured to be fastened to the frame body main body by the male screw portion and a nut threaded thereto, so that the pressing portion can clamp the flexible solar cell module together with the frame body main body. Frame body. [Effects of the Invention]

[0019] 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]

[0020] [Figure 1] 1A and 1B are diagrams showing a frame body according to each embodiment of the present invention. [Figure 2] FIG. 1 is an explanatory diagram of a construction method according to a first 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. DETAILED DESCRIPTION OF THE INVENTION

[0021] 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.

[0022] <Embodiment 1> Hereinafter, the first embodiment will be described with reference to FIGS. In this embodiment, the predetermined construction surface X on which the module M is constructed is assumed to be, for example, a rooftop or the like that has been waterproofed.

[0023] The module M is a thin, generally rectangular panel that has recently become commonplace, and is constructed by sandwiching multiple photovoltaic cells (power generation elements) made of silicon between resin films. This makes the module M lightweight and flexible, and it can be bent to suit the installation location. 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.

[0024] <<Configuration of frame body F>> The structure of the frame body F used in this construction method will be described below with reference to FIG. In addition, (a-1) of Figure 1 is an enlarged oblique view of the end of the frame body main body F1, (a-2) is a front view of the frame body main body F1, (b) is an overall oblique view of the protruding portion F2, and (c) is an overall oblique view of the pressing portion F3.

[0025] The frame body F has a frame body main body F1, a plurality of protruding portions F2 formed separately from the frame body main body F1, and a pressing portion F3 formed separately from the frame body main body F1.

[0026] The frame body main body F1 is made up of a plurality of elongated bodies that are separately constructed. More specifically, the frame body main body F1 includes a first frame body F11 (see Figure 2) that abuts against the outer peripheral edge of the short side of the module M, and a second frame body F12 (see Figure 2) that abuts against the outer peripheral edge of the long side of the module M.

[0027] The first frame body F11 and the second frame body F12 have the same configuration except that their overall lengths are different. In the following description, the first frame body F11 and the second frame body F12 will be collectively referred to as the frame body main body F1.

[0028] As shown in FIGS. 1(a-1) and 1(a-2), the frame body main body F1 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 the left-right direction in a front view on the frame body main body F1, and each rail portion K extends 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.

[0029] In addition, the frame body main body F1 has lightening portions h extending over the entire length of the frame body main body F1 on both short-side sides of each rail portion K. This reduces the overall weight of the frame body main body F1. In addition, extension portions j are formed on both short-side sides of the upper surface of the frame body main body F1 over the entire length of the frame body main body F1 in the longitudinal direction, thereby stabilizing the module M when it is placed on it.

[0030] As shown in FIG. 1(b), each of the protruding portions F2 is a so-called bolt having a male thread portion and a head portion.

[0031] As shown in FIG. 1(c), the pressing portion F3 is a component formed into a substantially L-shaped cross section by bending one long side of a substantially rectangular thin plate-like body. The pressing portion F3 is provided with three insertion holes p along the longitudinal direction, through which the protruding portions F2 are inserted.

[0032] <<Module M installation method S (S1, S2)>> Hereinafter, the method S for constructing the module M using the frame body F having the above-described configuration, particularly the laying step S1 and the abutting step S2, will be described with reference to FIGS.

[0033] <<<Laying process S1>>> The builder carries out a laying step S1 in which each frame body F1 is attached to a predetermined construction surface X.

[0034] In more detail, the installer performs 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 F1 that faces the construction surface X, and an adhesion process S12 in which the frame body main body F1 is adhered to the construction surface X via the adhesive layer G.

[0035] In the adhesive layer forming process S11, it is preferable that the worker applies adhesive g2 to the outer edge of the bottom surface of each frame body main body F1 (adhesive application process) as shown in Figure 2, and then attaches double-sided tape g1 along the inner surface of the adhesive g2 (tape attachment process). This provides the effect of suppressing exposure of the double-sided tape g1 to the outside air within one frame body main body F1. In this embodiment, in order to increase the adhesive strength, an adhesive g2 is also applied to the center of the bottom surface of each frame body main body F1 along the longitudinal direction.

[0036] In addition, 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 application surface X 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.

[0037] In the bonding step S12, in this embodiment, an example of laying a frame body main body F1 for attaching two modules M will be shown. That is, in this example, the builder uses three first frame bodies F11 and four second frame bodies F12 to lay the frame body main body F1 in a sun-like shape (see FIG. 3). This creates two enclosed areas for mounting the modules M.

[0038] <<<Contact process S2>>> Next, the installer carries out a contacting step S2 in which the outer peripheral edge of the module M is contacted to each frame body main body F1.

[0039] More specifically, the installer brings the peripheral edge of the module M into contact with the upper surface of each frame body main body F1 as shown in FIG. 4(a), thereby achieving the state shown in FIG. 4(b). As a result, the rear surface of the module M and the construction surface X (the area surrounded by the frame body F in a plan view) directly face each other.

[0040] <<Module M installation method S (S3, S4)>> Hereinafter, the method S for installing the module M using the frame body F having the above-described configuration, particularly the positioning step S3 and the pressing step S4, will be described with reference to FIGS. 5 and 6 are enlarged perspective views showing the steps in frames A and B of FIG.

[0041] <<Positioning process S3>>> The installer performs a positioning step S3 in which the plurality of protruding portions F2 are slid along the extension direction of each frame body main body F1 to position them relative to the frame body main body F1 (arrow a1 shown in FIGS. 5 and 6).

[0042] More specifically, as shown in Figures 5(a) and 6(a), the installer inserts the protrusion F2 into the rail portion K with the head of the protrusion F2 facing downward so that the male screw portion protrudes upward from the open portion of the rail portion K. Then, the installer slides the protruding portions F2, the number of which corresponds to the number of pressing portions F3 to be used, within the rail portion K, and positions them relative to each frame body main body F1.

[0043] In this embodiment, as shown in FIG. 7, two modules M are attached to the frame body F shown in FIG. 3 with one long side of each module adjacent to each other. In this embodiment, for each module M, three pressing portions F3 are used along each long side direction and two pressing portions F3 are used along each short side direction.

[0044] For this reason, the installer inserts the 3×3=9 protrusions F2 into the central rail portion K for the first frame bodies F11 on both ends, and positions them by sliding. Furthermore, the installer inserts 2×3=6 protrusions F2 into the central rail portion K of each second frame body F12 and positions them by sliding.

[0045] Furthermore, the installer inserts 3 x 6 = 18 protrusions F2 into the central rail portion K of the central first frame body F11 and positions them by sliding. That is, for the central first frame body F11, three pressing portions F3 (six in total) are arranged along the long side direction of each module M, and therefore the above number of protruding portions F2 are required.

[0046] <<<Pressing process S4>>> Next, the installer performs a pressing step S4 in which the outer peripheral edge of each module M is pressed down by a plurality of pressing portions F3 (arrows a2, a3 shown in FIGS. 5 and 6).

[0047] More specifically, as shown in FIG. 5(b) and FIG. 6(b), the installer inserts each of the protruding portions F2 positioned in the positioning step S3 into each of the insertion holes p of each of the pressing portions F3. Then, the installer fastens each pressing portion F3 to each frame body main body F1 by screwing a nut n onto each protruding portion F2. In addition, on the central first frame body F11, one pressing portion F3 for pressing one module M and one pressing portion F3 for pressing the other module M are arranged adjacent to each other with their orientations staggered.

[0048] As a result, each module M is sandwiched between each frame body main body F1 and each pressing portion F3, and is attached to each frame body main body F1 as shown in FIG.

[0049] FIG. 8 is a flowchart showing the above-mentioned series of steps.

[0050] <<Effects>> According to this embodiment, as described above, when performing maintenance on the construction surface X, by removing the module M from the frame body F, a predetermined area of ​​the construction surface X is exposed, making it easy to perform regular maintenance, etc. After removing the module M, the installer can also remove the frame body F itself from the construction surface X by cutting the adhesive layer G.

[0051] Furthermore, since the module M is fastened to the frame body F through the positioning step S3 and the holding step S4 described above, anyone can easily attach and detach the module M to and from the frame body F without requiring skilled techniques.

[0052] Furthermore, the adhesive layer formation process S11 and the adhesion process S12 described above eliminate the need for fastening work using fixing metal fittings or the like when attaching the frame body main body F1 to the construction surface, allowing the contractor to carry out this work easily.

[0053] Furthermore, the tape application process allows 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.

[0054] Furthermore, since the frame body main body F1 is composed of multiple long bodies (first frame body F11, second frame body F12) that are constructed separately, even when modules M of different sizes are to be installed on the installation surface X, the positioning process S3 and pressing process S4 can be carried out flexibly regardless of the difference in size.

[0055] <Embodiment 2> Hereinafter, the second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the predetermined construction surface X on which the module M is constructed is assumed to be, for example, a wall surface such as an exterior wall that has been waterproofed. 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.

[0056] <<Configuration of frame body F>> The configuration of the frame body F according to this embodiment is the same as that of the first embodiment, and therefore a description thereof will be omitted.

[0057] <<Module M installation method S>> Hereinafter, a method S for installing a module M using a frame body F will be described with reference to FIGS. FIG. 9(b) is a cross-sectional view taken along the line PP' in FIG. 9(a).

[0058] <<<Laying process S1>>> The builder carries out the laying step S1 of attaching the frame body main body F1 to the construction surface X.

[0059] 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 main body F1 facing the construction surface X, an adhesion process S12 in which the frame body main body F1 is adhered to the construction surface X via the adhesive layer G, and a wall surface fastening process S13 in which the frame body main body F1 is fastened to the construction surface X.

[0060] The adhesive layer forming step S11 and the adhesive step S12 in this embodiment are performed in the same manner as in the first embodiment, and therefore, a description thereof will be omitted. In this example, the builder uses two first frame bodies F11 and two second frame bodies F12 to lay the frame body main body F1 in a square shape (see FIG. 9).

[0061] In this embodiment, after the bonding step S12, the builder performs a wall surface fastening step S13 in which the frame body main body F1 is fastened to the construction surface X. More specifically, as shown in FIG. 9, the builder fastens each first frame body F11 and each second frame body F12 to the construction surface X by driving anchor bolts c into the construction surface X through fastening holes t drilled in the upper and lower end sides of each first frame body F11 and the left and right end sides of each second frame body F12. In the subsequent abutment process S2, the installer adjusts the vertical distance between each second frame body F12 in particular according to the size of the module M so that the outer edge of the module M does not interfere with the anchor bolt c.

[0062] <<Contact process S2>> Next, the installer carries out a contacting step S2 in which the outer peripheral edge of the module M is contacted to each frame body main body F1. The contact step S2 in this embodiment follows the same flow as in the first embodiment, and therefore its description will be omitted. However, since this construction method is being carried out on a wall surface, when carrying out the subsequent positioning step S3 and pressing step S4, the contractor must continuously press the module M against each frame body main body F1 to prevent it from detaching due to gravity.

[0063] <<<Positioning step S3>>> Next, the installer performs a positioning step in which the plurality of protruding portions F2 are slid along the extension direction of each frame body main body F1 to position them relative to the frame body main body F1. The positioning step S3 in this embodiment follows the same flow as in the first embodiment, and therefore its description will be omitted. However, since this construction method is carried out on a wall surface, the contractor must simultaneously position the protrusion F2 for attaching one pressing portion F3 to each first frame body F11 (positioning step S3) and attach this pressing portion F3 to each first frame body F11 (pressing step S4) in order to prevent sliding due to gravity, particularly for each first frame body F11.

[0064] <<<Pressing process S4>>> Next, the installer performs a pressing step S4 in which the outer peripheral edge of each module M is pressed down by a plurality of pressing portions F3. The pressing step S4 in this embodiment follows the same flow as in the first embodiment, and therefore the description thereof will be omitted.

[0065] As a result, the module M is clamped between each frame body main body F1 and each pressing portion F3, and is attached to each frame body main body F1 as shown in FIG. The above-described steps S1 to S4, and removal of the module M during maintenance, can be carried out by a plurality of workers using a mechanical scaffold such as a portable gondola. Furthermore, as in the first embodiment, the module M installed on the installation surface X is electrically connected to a junction box and a charging control device installed, for example, on a rooftop surface via a specified cable, thereby becoming capable of supplying power to desired equipment.

[0066] FIG. 11 is a flowchart showing the above-mentioned series of steps.

[0067] <<Effects>> According to this embodiment, the same effects as those of the first embodiment can be obtained, and the wall surface can be used as a power generation area, so that the amount of power generation per building can be easily improved.

[0068] Furthermore, the wall fastening process S13 prevents the module M from falling off the construction surface X even if its adhesive strength to the construction surface X 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.

[0069] <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.

[0070] For example, in each embodiment, an example has been shown in which the frame body main body F1 is adhesively fixed to the construction surface X, but this is not limiting, and the frame body main body F1 may be fixed using a predetermined fixing metal fitting or the like.

[0071] In addition, in each embodiment, an example is shown in which the frame body F is constructed using a first frame body F11 and a second frame body F12, but it is also possible to lay only the first frame bodies F11 or only the second frame bodies F12 approximately parallel to each other and attach a module M to them.

[0072] In addition, in embodiment 1, an example is shown in which two modules M are attached to the construction surface X, and in embodiment 2, an example is shown in which one module M is attached to the construction surface X, but this number can naturally be increased or decreased, along with the number of frame body main bodies F1, depending on the area of ​​the construction surface X, etc. In this case, a desired number of sets of pressing portions F3 are arranged between adjacent long or short edge portions of each module M, with the pressing portions F3 facing in opposite directions, as in the central first frame body F11 in Figure 7, along the extension direction of the first frame body F11 or the second frame body F12.

[0073] Furthermore, although the example in which the pressing portion F3 has a substantially L-shaped cross section has been shown, it is not limited to this, and may be a substantially U-shaped cross section or a simple flat plate.

[0074] The shapes and dimensions of the components shown in the above-described embodiments are merely examples and can be modified in various ways based on design requirements, etc.

[0075] 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]

[0076] S: Construction method S1: Laying process S2: Contact process S3: Positioning process S4: Pressing process F: Frame body F1: Frame body F11: First frame body F12: Second frame body F2: Projection part F3: Presser foot M: Module

Claims

1. A method for installing a flexible solar cell module using a frame body having a frame body main body to be installed on a predetermined installation surface, a plurality of protruding portions protruding from the frame body main body, and a pressing portion formed separately from the frame body main body, a laying step of laying the frame body on the construction surface; a contacting step of contacting an outer peripheral edge of the flexible solar cell module with the frame body; a positioning step of sliding the plurality of protrusions along the extension direction of the frame body main body to position the plurality of protrusions relative to the frame body main body; a pressing step of pressing an outer periphery of the flexible solar cell module with the pressing portion, The pressing step is a step of fastening the pressing portion to the frame body main body using male screw portions provided on each of the protruding portions and nuts threaded onto the male screw portions, thereby sandwiching the flexible solar cell module together with the frame body main body. How to install flexible solar modules.

2. The laying step includes an adhesive layer forming step of providing an adhesive layer on an opposing surface of the frame body main body that faces the construction surface, and an adhering step of adhering the frame body main body to the construction surface via the adhesive layer. A method for installing the flexible solar cell module according to claim 1 .

3. The adhesive layer forming step includes a tape attaching step of providing a double-sided tape on the opposing surface, and an adhesive applying step of providing an adhesive on the opposing surface. A method for installing the flexible solar cell module according to claim 2.

4. The frame body main body is composed of a plurality of elongated bodies formed separately. A method for installing the flexible solar cell module according to claim 1 .

5. The construction surface is an exterior wall. A method for installing the flexible solar cell module according to any one of claims 1 to 4.

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