Installation structure and installation method for sheet-type solar cell modules

Abstract

Installation structure of sheet-type solar cell modules that provides excellent durability even when subjected to strong winds. [Solution] A construction structure for a sheet-type solar cell module having a front surface and a back surface, comprising: a first tape front surface portion provided on the front surface side of the sheet-type solar cell module along a first outer peripheral portion of the outer edge of the sheet-type solar cell module; a first tape back surface portion provided on the back surface side of the sheet-type solar cell module along the first outer peripheral portion; and a first core material portion extending substantially parallel to the first outer peripheral portion, connected to the sheet-type solar cell module via the first tape front surface portion and the first tape back surface portion, and having an average rigidity higher than that of the sheet-type solar cell module.

Description

Technical Field

[0001] The present invention relates to a construction structure of a sheet-type solar cell module and a method for constructing a sheet-type solar cell module.

Background Art

[0002] As a solar cell module installed outdoors or the like, there is a desire to use a sheet-type (also referred to as film-shaped) solar cell module that is thinner and lighter than conventional panel-type ones. Since the sheet-type solar cell module is thin and light, it has the merit of being able to suppress costs such as transportation, while a construction structure that exhibits sufficient strength to withstand strong winds and the like is required.

[0003] As a conventional technique related to the construction structure of a sheet-type solar cell module, for example, a structure has been proposed in which it is attached and fixed to a waterproof sheet or the like via a double-sided tape provided on the back surface of the solar cell module (see Patent Document 1 and the like).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the conventional construction structure of a sheet-type solar cell module, when the sheet-type solar cell module receives a force in a direction of lifting upward from the installation surface due to the influence of strong winds or the like, the sheet-type solar cell module tends to peel off from the installation surface and the double-sided tape, and there are problems from the viewpoint of durability.

[0006] Therefore, the present invention relates to a construction structure for sheet-type solar cell modules and a construction method for sheet-type solar cell modules that exhibit good durability even when subjected to strong winds or the like. [Means for solving the problem]

[0007] In the installation structure of the sheet-type solar cell module according to the present invention, A mounting structure for a sheet-type solar cell module having a front surface and a back surface, Having a laminated structure of a base layer and an adhesive layer, the sheet-type solar cell module has a first tape surface portion provided on the surface side of the sheet-type solar cell module, along the outer edge first portion of the outer edge of the sheet-type solar cell module, such that the adhesive layer spans between the first surface portion of the sheet-type solar cell module which is inside the first outer edge portion and to which a part of the adhesive layer is attached, and the portion outside the first outer edge portion. Having a laminated structure of a base layer and an adhesive layer, the sheet-type solar cell module has a first tape back portion provided on the back side of the sheet-type solar cell module such that the adhesive layer spans between the first back portion of the sheet-type solar cell module, which is inside the first outer peripheral portion and to which a part of the adhesive layer is attached, and the portion outside the first outer peripheral portion. It has a first core material portion that extends substantially parallel to the outer peripheral first portion, is connected to the sheet-type solar cell module via the front side portion and the back side portion of the first tape, and has a higher average rigidity than the sheet-type solar cell module.

[0008] According to the installation structure for sheet-type solar cell modules of the present invention, the sheet-type solar cell module is held by sandwiching it from both the front and back sides between the front and back portions of the first tape, and these front and back portions of the first tape are connected to a first core material portion which has relatively high rigidity. With such an installation structure, even if the sheet-type solar cell module is pulled by the effects of strong winds, a force acts on the adhesive surfaces of the front and back portions of the first tape in the shear direction (parallel to the adhesive surface and away from it). Therefore, compared to conventional installation structures in which a force acts in the peeling direction (perpendicular to the adhesive surface or parallel to the adhesive surface and in a direction that flips the adhesive surface over), the bond between the tape and the solar cell module is less likely to be released, resulting in good durability. In particular, the installation structure for sheet-type solar cell modules of the present invention effectively prevents the force acting in the peeling direction by organically relating the flexibility of the sheet-type solar cell module, the front portion of the first tape, and the back portion of the first tape with the holding structure.

[0009] Furthermore, for example, in the construction structure of the sheet-type solar cell module according to the present invention, a first joint portion may be formed between the outer peripheral first portion and the first core material portion, where the adhesive layer of the front side portion of the first tape and the adhesive layer of the back side portion of the first tape are bonded together.

[0010] The formation of such a first joint makes it more effective to prevent peeling forces from acting on the adhesive surfaces of the front and back portions of the first tape to the sheet-type solar cell module and the core material. Furthermore, the formation of the first joint improves the connection strength between the sheet-type solar cell module and the core material by the front and back portions of the first tape.

[0011] Furthermore, for example, the construction structure of the sheet-type solar cell module according to the present invention has a laminated structure of a base material layer and an adhesive layer, and along the outer edge of the sheet-type solar cell module, on the outer edge opposite to the outer edge second portion, a second tape surface portion is provided on the surface side of the sheet-type solar cell module such that the adhesive layer spans between the surface second portion of the sheet-type solar cell module, which is inside the outer edge second portion and to which a part of the adhesive layer is attached, and the area outside the outer edge second portion. Having a laminated structure of a base layer and an adhesive layer, the sheet-type solar cell module has a second tape back portion provided on the back side of the sheet-type solar cell module such that the adhesive layer spans the back side portion of the sheet-type solar cell module, which is located inside the second outer periphery portion and to which a part of the adhesive layer is attached, and the portion outside the second outer periphery portion, The present invention may further include a second core material portion that extends substantially parallel to the outer peripheral second portion, is connected to the sheet-type solar cell module via the front and back portions of the second tape, and has a higher average rigidity than the sheet-type solar cell module.

[0012] In this type of sheet-type solar cell module installation structure, the first outer perimeter of the sheet-type solar cell module installation structure is held by the front and back portions of the first tape, and the second outer perimeter of the sheet-type solar cell module installation structure is held by the front and back portions of the second tape. This type of sheet-type solar cell module installation structure can hold both sides of the outer edge of the sheet-type solar cell module in a balanced manner without adding any other holding structures, and can therefore flexibly adapt to the shape of the sheet-type solar cell module and the conditions of the installation site.

[0013] Furthermore, for example, in the installation structure of the sheet-type solar cell module according to the present invention, a second joint may be formed between the outer peripheral second portion and the second core material portion, where the adhesive layer of the front side portion of the second tape and the adhesive layer of the back side portion of the second tape are bonded together.

[0014] The formation of such a second joint makes it possible to more effectively prevent peeling forces from acting on the adhesive surfaces of the front and back portions of the second tape against the sheet-type solar cell module and the core material. Furthermore, the formation of the second joint improves the connection strength between the sheet-type solar cell module and the second core material by the front and back portions of the second tape.

[0015] Furthermore, for example, the first core material portion or the second core material portion may have an engaging portion into which a fixing member for fixing to another member engages.

[0016] Unlike the sheet-type solar cell module itself, the first core material can be shaped relatively freely, but the presence of engaging parts for the fixing members allows for a stronger and more durable construction structure.

[0017] Furthermore, for example, the first front portion of the sheet-type solar cell module and the first back portion of the sheet-type solar cell module may have substantially the same area. The first core material surface portion to which the adhesive layer of the first tape front portion is attached and the first core material back portion to which the adhesive layer of the first tape back portion is attached may be substantially the same area.

[0018] By making the adhesive surface area on the front and back sides approximately the same, the sheet-type solar cell module can be supported in a balanced manner by the front and back portions of the first and second tapes, thereby improving the durability of the construction structure.

[0019] Furthermore, for example, the first surface portion of the sheet-type solar cell module may have a smaller area than the first back surface portion of the sheet-type solar cell module. In the first core material portion, the first surface portion of the core material surface to which the adhesive layer of the front side portion of the first tape adheres and the first back surface portion of the core material surface to which the adhesive layer of the back side portion of the first tape adheres may have substantially the same area.

[0020] Sheet-type solar cell modules often have a light-receiving surface on the front and a non-light-receiving surface on the back. In such cases, by making the area of the first surface portion narrower than that of the first back surface portion, it is possible to secure the area of the adhesive surface while avoiding the overlap of the light-receiving surface and the first surface portion, and improve the support strength of the sheet-type solar cell module.

[0021] Also, for example, the first core material portion may be in a rod shape or a hollow cylindrical shape extending substantially parallel to the first outer peripheral portion. The front side portion of the first tape and the back side portion of the first tape may be connected to each other so as to surround the outer periphery of the first core material portion.

[0022] The shape of the first core material portion is not particularly limited, but by making it in a rod shape or a hollow cylindrical shape, it is possible to reduce the weight and increase the rigidity. Also, by connecting the front side portion of the first tape and the back side portion of the first tape to each other so as to surround the outer periphery of the first core material portion, the connection strength and durability between the first core material portion and the sheet-type solar cell module can be enhanced.

[0023] Also, for example, the front side portion of the first tape and the back side portion of the first tape are in a strip shape extending substantially parallel to the first outer peripheral portion. Along the inner ends of the front side portion of the first tape and the back side portion of the first tape, a protective portion is formed across the surface and the front side portion of the first tape, or the back surface and the back side portion of the first tape, and covers the inner ends.

[0024] Because the front and back portions of the first tape are strip-shaped, a surface and back portion of approximately constant width can be easily formed along the outer edge. Furthermore, by having a protective portion that covers the inner end, the inner end of the front or back portion of the first tape can be prevented from peeling off, thereby increasing the durability of fixing and holding the sheet-type solar cell module.

[0025] Furthermore, for example, the sheet-type solar cell module may have a main body region where cells are formed when viewed from the surface side, and a blank region located on the outer periphery of the main body region where no cells are arranged. The first surface portion and the second surface portion of the sheet-type solar cell module may be arranged in the margin area.

[0026] In this type of sheet-type solar cell module installation structure, by avoiding overlapping of the first and second surface areas with the main body area, a highly reliable installation structure can be achieved without reducing the amount of light received and the amount of power generated by the sheet-type solar cell module.

[0027] Furthermore, the installation method for the sheet-type solar cell module according to the present invention is The steps include preparing a sheet-type solar cell module having a front surface and a back surface, The first tape, having a laminated structure of a base layer and an adhesive layer, is provided on the surface side of the sheet-type solar cell module along the outer edge first portion of the outer edge of the sheet-type solar cell module, such that the adhesive layer spans both the surface first portion of the sheet-type solar cell module, which is inside the outer edge first portion and to which a part of the adhesive layer is attached, and the portion outside the outer edge first portion. The steps include providing the back portion of the second tape, which has a laminated structure of a base layer and an adhesive layer, along the outer peripheral first portion, on the back side of the sheet-type solar cell module such that the adhesive layer spans both the back surface first portion of the sheet-type solar cell module, which is located inside the outer peripheral first portion and to which a part of the adhesive layer is connected, and the area outside the outer peripheral first portion, The process includes connecting a first core material portion, which extends substantially parallel to the outer peripheral portion and has a higher average rigidity than the sheet-type solar cell module, to the sheet-type solar cell module via the front and back portions of the first tape.

[0028] According to the installation method for sheet-type solar cell modules of the present invention, the sheet-type solar cell module is held by sandwiching it from both sides by the front and back portions of the first tape, and the front and back portions of the first tape are connected to a first core material portion which has relatively high rigidity. With such an installation structure, even if the sheet-type solar cell module is pulled by the effects of strong winds, a force acts on the adhesive surfaces of the front and back portions of the first tape in the shear direction (parallel to the adhesive surface and away from it). Therefore, compared to conventional installation structures in which a force acts in the peeling direction (perpendicular to the adhesive surface or parallel to the adhesive surface and in a direction that turns the adhesive surface over), the bond between the tape and the solar cell module is less likely to be released, resulting in good durability. The flexibility of the sheet-type solar cell module, the front portion of the first tape, and the back portion of the first tape are organically related to the holding structure, which effectively prevents a force from acting in the peeling direction. [Brief explanation of the drawing]

[0029] [Figure 1] Figure 1 is a schematic cross-sectional view showing the installation structure of a sheet-type solar cell module according to the first embodiment of the present invention. [Figure 2] Figure 2 is an enlarged view of the main parts of the installation structure of the sheet-type solar cell module shown in Figure 1. [Figure 3] Figure 3 is a conceptual diagram showing the main parts of the installation structure of the sheet-type solar cell module shown in Figure 1, viewed from the surface side of the sheet-type solar cell module. [Figure 4] Figure 4 is an enlarged view of the main parts showing the connection structure of the sheet-type solar cell module, the front side portion of the first tape, the back side portion of the first tape, and the first core material portion in the installation structure of the sheet-type solar cell module according to the first modified example. [Figure 5]Figure 5 is a conceptual diagram showing the main parts of the installation structure of the sheet-type solar cell module shown in Figure 4, viewed from the surface side of the sheet-type solar cell module. [Figure 6] Figure 6 is an enlarged view of the main parts showing the connection structure of the sheet-type solar cell module, the front side portion of the first tape, the back side portion of the first tape, and the first core material portion in the construction structure of the sheet-type solar cell module according to the second modified example. [Figure 7] Figure 7 is an enlarged view of the main parts showing the connection structure of the sheet-type solar cell module, the front side portion of the first tape, the back side portion of the first tape, and the first core material portion in the construction structure of the sheet-type solar cell module according to the third modified example. [Figure 8] Figure 8 is an enlarged view of the main parts of the construction structure of the sheet-type solar cell module according to the fourth modified example. [Figure 9] Figure 9 is an enlarged view of the main parts showing the connection structure of the sheet-type solar cell module, the front side portion of the first tape, the back side portion of the first tape, and the first core material portion in the installation structure of the sheet-type solar cell module according to the fifth modified example. [Figure 10] Figure 10 is a conceptual diagram illustrating the delamination modes of the adhesive surface that occur in the installation structure of sheet-type solar cell modules of the present invention and the prior art. [Figure 11] Figure 11 is a conceptual diagram showing the installation structure of a conventional sheet-type solar cell module. [Modes for carrying out the invention]

[0030] Figure 1 is a schematic cross-sectional view showing the installation structure 10 of a sheet-type solar cell module according to the first embodiment of the present invention. As shown in Figure 1, the installation structure 10 of the sheet-type solar cell module includes a first tape portion 20 provided on the first outer circumference portion 15a of the sheet-type solar cell module 12, a second tape portion 30 provided on the second outer circumference portion 15b of the sheet-type solar cell module 12, a first core material portion 40, and a second core material portion 50, etc.

[0031] The sheet-type solar cell module 12 used in the installation structure 10 for sheet-type solar cell modules is manufactured by laminating flexible cells (power generation units) 17 with a flexible film made of resin or the like. Although the detailed structure is not shown in Figure 1, the sheet-type solar cell module 12 includes a large number of cells 17 arranged in an array and a wiring structure for extracting the electricity generated in the large number of cells 17. The sheet-type solar cell module 12 is also called a film-type solar cell module, etc.

[0032] Examples of cells 17 in the sheet-type solar cell module 12 include amorphous solar cells and perovskite solar cells, but are not particularly limited as long as they are capable of forming the sheet-type solar cell module 12. In the sheet-type solar cell module 12, both sides of the cells (power generation units) 17 are sealed with a flexible resin film or the like, rather than a rigid glass or the like. In the sheet-type solar cell module 12, the material of the film (also called a sheet or sealing material) covering both sides of the cells 17 is not particularly limited, but examples include polyethylene-based, nylon-based, polypropylene-based, and polyethylene terephthalate-based materials, but are not particularly limited. In addition, a protective layer of fluororesin may be formed on the outermost surfaces of the front surface 13 and back surface 14 of the sheet-type solar cell module 12.

[0033] The sheet-type solar cell module 12 shown in Figure 1 is sheet-shaped and has a front surface 13 and a back surface 14. In the sheet-type solar cell module 12, the front surface 13 is the light-receiving surface, and the cells 17 generate electricity from light incident on the front surface 13. The resin film on the front surface 13 side is transparent and transmits light, but the film on the back surface 14, which is a non-light-receiving surface, can be colored and have a lower visible light transmittance than the front surface 13 side. However, the sheet-type solar cell module 12 may have both the front surface 13 and the back surface 14 as light-receiving surfaces.

[0034] Figure 3 is a conceptual diagram of the main parts of the installation structure 10 of the sheet-type solar cell module shown in Figure 1, viewed from the surface 13 side of the sheet-type solar cell module 12. As shown in Figure 3, the sheet-type solar cell module 12 is roughly rectangular. The outer edge 15 of the sheet-type solar cell module 12 is provided with a first tape portion 20 and a second tape portion 30.

[0035] Figure 1 is a cross-sectional view taken along the direction of section line II in Figure 3. However, in Figure 3, other members 75 and fixing members 71a, 71b, and 72 shown in Figure 1 are omitted from the illustration. Furthermore, in the explanation of the construction structure 10 of the sheet-type solar cell module, the direction perpendicular to the surface 13 and back surface 14 of the sheet-type solar cell module 12 is defined as the Z-axis direction, the direction parallel to the first outer peripheral portion 15a of the sheet-type solar cell module 12 is defined as the X-axis direction, and the direction perpendicular to the first outer peripheral portion 15a of the sheet-type solar cell module 12 is defined as the Y-axis direction. The X-axis, Y-axis, and Z-axis are perpendicular to each other.

[0036] As shown in Figures 1 and 3, the first tape portion 20 has a first tape front portion 21 and a first tape back portion 26, and connects the sheet-type solar cell module 12 and the first core material portion 40. As shown in Figures 1 and 3, the first tape front portion 21 and the first tape back portion 26 are provided in a strip shape along the outer peripheral first portion 15a of the outer peripheral edge 15 of the sheet-type solar cell module 12. The outer peripheral first portion 15a corresponds to a part of the outer peripheral edge 15, which is composed of the long side located on the negative Y-axis side of the pair of long sides of the sheet-type solar cell module 12 when the sheet-type solar cell module 12 is viewed from the Z-axis direction as shown in Figure 3.

[0037] Figure 2 is an enlarged cross-sectional view showing the area around the first tape portion 20 of the installation structure 10 of the sheet-type solar cell module shown in Figure 1. As shown in Figure 2, the front portion 21 of the first tape has a laminated structure of a base material layer 22 and an adhesive layer 23, with the base material layer 22 positioned on the positive Z-axis side of the adhesive layer 23, and the surface of the adhesive layer 23 facing the negative Z-axis side.

[0038] As can be seen from Figures 2 and 3, the first tape front portion 21 is provided on the surface 13 side of the sheet-type solar cell module 12 such that the adhesive layer 23 spans both the first surface portion 13a of the sheet-type solar cell module 12 and the area outside the first outer peripheral portion 15a. The first surface portion 13a is the portion of the surface 13 of the sheet-type solar cell module 12 that is inside the first outer peripheral portion 15a and to which a part of the adhesive layer 23 adheres.

[0039] As shown in Figure 2, the back portion 26 of the first tape has a laminated structure of a base layer 27 and an adhesive layer 28, similar to the front portion 21 of the first tape. However, in the back portion 26 of the first tape, the base layer 27 is located on the negative Z-axis side of the adhesive layer 28, the surface of the adhesive layer 28 faces the positive Z-axis side, and the adhesive layers 23 and 28 are arranged to face each other with respect to the front portion 21 of the first tape.

[0040] As can be seen from Figures 2 and 3, the second tape back portion 36 is provided on the back surface 14 side of the sheet-type solar cell module 12 such that the adhesive layer 28 spans both the first back surface portion 14a of the sheet-type solar cell module 12 and the area outside the first outer peripheral portion 15a. The first back surface portion 14a is the portion of the back surface 14 of the sheet-type solar cell module 12 that is inside the first outer peripheral portion 15a and to which a part of the adhesive layer 28 is attached.

[0041] The material of the adhesive layers 23 and 28 on the front portion 21 and back portion 26 of the first tape is not particularly limited, but examples include those containing butyl rubber adhesive, silicone adhesive, or urethane adhesive. The adhesive layer 23 containing silicone adhesive is particularly suitable when a fluororesin coating is applied to the surface 13 of the sheet-type solar cell module 12. The material of the base material layers 22 and 27 on the front portion 21 and back portion 26 of the first tape is not particularly limited, but examples include polyethylene, polypropylene, polyimide, polyvinyl chloride, acrylic resin, woven fabric, and nonwoven fabric.

[0042] As shown in Figures 1 to 3, the first core material portion 40 extends substantially parallel to the first outer circumference portion 15a of the sheet-type solar cell module 12 and is connected to the sheet-type solar cell module 12 via the first tape front portion 21 and the first tape back portion 26. The first core material portion 40 is made of a material with a higher average rigidity than the sheet-type solar cell module 12. Examples of materials for the first core material portion 40 include metal materials such as aluminum, iron, nickel and alloys containing these, and fiber-reinforced plastic materials, but are not particularly limited.

[0043] As shown in Figures 1 and 2, the first core material portion 40 used in the installation structure 10 of the sheet-type solar cell module according to the first embodiment is a solid round bar shape extending in the X-axis direction. However, the shape of the first core material portion 40 is not limited to this shape. As will be described later using modified examples, the shape of the first core material portion 40 can be various shapes other than a round bar, such as a polygonal prism shape, a thin plate shape, a hollow cylindrical shape, or a J-shaped cross-section shape.

[0044] As shown in Figure 2, the first tape portion 20, which has a first tape front portion 21 and a first tape back portion 26, connects the sheet-type solar cell module 12 and the first core material portion 40 by sandwiching them from both the positive Z-axis side (front surface 13 side) and the negative Z-axis side (back surface 14 side). That is, the first tape front portion 21 and the first tape back portion 26 are arranged to overlap each other when viewed from the Z-axis direction.

[0045] The adhesive layer 23 of the front surface portion 21 of the first tape adheres to the first surface portion 13a of the sheet-type solar cell module 12 and the first core material surface portion 41a of the first core material portion 40. As a result, the front surface portion 21 of the first tape connects the sheet-type solar cell module 12 and the surface of the first core material portion 40 on the positive Z-axis side.

[0046] On the other hand, the adhesive layer 28 of the back portion 26 of the first tape is attached to the first back portion 14a of the sheet-type solar cell module 12 and the first back portion 41b of the core material of the first core material portion 40, connecting the sheet-type solar cell module 12 and the surface on the negative Z-axis side of the first core material portion 40.

[0047] As shown in Figure 2, a first joint 25 is formed between the outer peripheral first portion 15a of the sheet-type solar cell module 12 and the first core material portion 40 extending parallel thereto, where the adhesive layer 23 of the first tape front portion 21 and the adhesive layer 28 of the first tape back portion 26 are bonded together. The formation of the first joint 25 makes it possible to more effectively prevent peeling forces from acting on the adhesive surfaces of the first tape front portion 21 and the first tape back portion 26 to the sheet-type solar cell module 12 and the first core material portion 40. Furthermore, the formation of the first joint 25 improves the connection strength between the sheet-type solar cell module 12 and the first core material portion 40 by the first tape front portion 21 and the first tape back portion 26.

[0048] Furthermore, as shown in Figures 1 and 2, the front portion 21 of the first tape and the back portion 26 of the first tape may be connected to each other so as to surround the outer circumference of the cross section perpendicular to the extending direction of the first core material portion 40. Such a structure also contributes to improving the connection strength between the sheet-type solar cell module 12 and the first core material portion 40 by the front portion 21 and the back portion 26 of the first tape.

[0049] As shown in Figures 1 and 3, the second tape portion 30 has a second tape front portion 31 and a second tape back portion 46, and connects the sheet-type solar cell module 12 and the second core material portion 50. As shown in Figures 1 and 3, the second tape front portion 31 and the second tape back portion 36 are provided in a strip shape along the outer peripheral second portion 15b of the outer peripheral edge 15 of the sheet-type solar cell module 12. The outer peripheral second portion 15b corresponds to a part of the outer peripheral edge 15, which is composed of the long side located on the positive Y-axis side of the pair of long sides of the sheet-type solar cell module 12 when the sheet-type solar cell module 12 is viewed from the Z-axis direction as shown in Figure 3. The outer peripheral second portion 15b is located on the opposite side of the sheet-type solar cell module 12 from the outer peripheral first portion 15a where the first tape portion 20 is provided.

[0050] As shown in Figures 1 and 3, the second tape portion 30 has a shape that is substantially symmetrical to the first tape portion 20. The second tape front portion 31 shown in Figure 1 has a laminated structure of a base material layer and an adhesive layer, similar to the first tape front portion 21 shown in Figure 2, with the base material layer facing the positive Z-axis direction and the adhesive layer facing the negative Z-axis direction. The second tape front portion 31 is provided on the surface 13 side of the sheet-type solar cell module 12 such that the adhesive layer spans both the second surface portion 13b of the sheet-type solar cell module 12 and the area outside the outer peripheral second portion 15b. The second surface portion 13b is the portion on the surface 13 of the sheet-type solar cell module 12 that is inside the outer peripheral second portion 15b and to which a part of the adhesive layer 23 is attached.

[0051] The second tape back portion 36 has a laminated structure of a base layer and an adhesive layer, similar to the first tape back portion 26 shown in Figure 2. The second tape back portion 36 is arranged such that the base layer faces the negative Z-axis direction and the adhesive layer faces the negative Z-axis forward direction, with the adhesive layers facing each other with respect to the second tape front portion 31.

[0052] As can be seen from Figures 2 and 3, the second tape back portion 36 is provided on the back surface 14 side of the sheet-type solar cell module 12 such that the adhesive layer spans both the second back portion 14b of the sheet-type solar cell module 12 and the area outside the first outer peripheral portion 15a. The first back portion 14a is the portion of the back surface 14 of the sheet-type solar cell module 12 that is inside the first outer peripheral portion 15a and to which a part of the adhesive layer 28 is attached.

[0053] The adhesive layer and base material layer of the front portion 31 and back portion 36 of the second tape are the same as those of the front portion 21 and back portion 26 of the first tape. However, the front portion 31 and back portion 36 of the second tape may be made of different materials and have different shapes than those of the front portion 21 and back portion 26 of the first tape.

[0054] As shown in Figures 1 and 3, the second core material portion 50 extends substantially parallel to the outer peripheral second portion 15b of the sheet-type solar cell module 12 and is connected to the sheet-type solar cell module 12 via the second tape front portion 31 and the second tape back portion 36. The second core material portion 50 is made of a material with a higher average rigidity than the sheet-type solar cell module 12, and examples of the material of the second core material portion 50 include the same material as that of the first core material portion 40. The shape of the second core material portion 50 is the same as that of the first core material portion 40.

[0055] The second tape portion 30 and the second core material portion 50 are arranged symmetrically to the first tape portion 20 and the first core material portion 40, with the sheet-type solar cell module 12 in between. However, the shape and structure of the second tape portion 30 and the second core material portion 50 are the same as those of the first tape portion 20 and the first core material portion 40 shown in Figure 2. For example, a second joint portion 35 is formed between the outer peripheral second portion 15b and the second core material portion 50, where the adhesive layer of the front side portion 31 of the second tape and the adhesive layer of the back side portion 36 of the second tape are bonded together. Further details of the second tape portion 30 and the second core material portion 50 are the same as those of the first tape portion 20 and the first core material portion 40, so their description is omitted.

[0056] As shown in Figures 1 and 3, the sheet-type solar cell module 12 has a main body region 16 on which cells 17 are formed when viewed from the surface 13 side, and a blank region 18 located on the outer periphery of the main body region 16 where cells 17 are not arranged. The first surface portion 13a and the second surface portion 13b of the sheet-type solar cell module 12 are located in the blank region 18 of the surface 13 of the sheet-type solar cell module 12.

[0057] As shown in Figure 1, the installation structure 10 of the sheet-type solar cell module is fixed to other members 75 such as building materials using fixing members 71a, 71b, 72, etc. The end of the installation structure 10 of the sheet-type solar cell module on the side of the first core material portion 40 is fixed to other members 75 by fixing member 71b, which is composed of a retaining clip that holds down the first core material portion 40, and fixing member 71a, which is composed of a bolt that screws fixing member 71b to other members 75. In addition, the end of the installation structure 10 of the sheet-type solar cell module on the side of the second core material portion 50 is fixed to other members 75 by fixing member 72, which is composed of an eyelet attached to the second tape portion 30, and a bolt (not shown) that screws fixing member 72 to other members 75.

[0058] According to the sheet-type solar cell module installation structure 10, the flexible sheet-type solar cell module 12 can be firmly fixed to other components 75 such as roofs, steel frames, or concrete surfaces without having to process the sheet-type solar cell module 12 itself, such as by drilling holes. Therefore, the sheet-type solar cell module installation structure 10 prevents the problem of damaging the sealing structure of the cells 17 by forming holes or other damage in the sheet-type solar cell module 12 itself.

[0059] The installation locations for the sheet-type solar cell module installation structure 10 and the objects to which the sheet-type solar cell module 12 can be fixed include, for example, walls, railings, windows, rooftops, and roofs both indoors and outdoors of buildings. In addition to buildings, the sheet-type solar cell module 12 can also be attached to temporary tents, road embankments, sound barriers, and vehicles such as automobiles and boats. Furthermore, the sheet-type solar cell module installation structure 10 can be compactly fixed not only to flat surfaces but also to curved surfaces such as the sides of cylindrical columns and curved walls.

[0060] Furthermore, the sheet-type solar cell module installation structure 10 shown in Figures 1 to 3 exhibits excellent durability, as shown below, in comparison with the conventional installation structure 910 for the sheet-type solar cell module 12, with the connection between the tape and the solar cell module being less likely to come undone. Figure 11 is a schematic cross-sectional view showing the conventional installation structure 910 for the sheet-type solar cell module 12.

[0061] In the conventional construction structure 910, a waterproof sheet 912 was laid on the installation surface of other components 75, and the back surface of the sheet-type solar cell module 12 and the waterproof sheet 912 were fixed using double-sided tape 914. In this case, due to the flexibility of the sheet-type solar cell module 12, as shown in Figure 10(a), a force that pulls the adhesive surface perpendicularly is easily applied to the adhesive surface of the double-sided tape 914 and the sheet-type solar cell module 12, resulting in a problem where the bond by the double-sided tape 914 is easily released. Furthermore, as shown in Figure 10(b), a force that pulls the adhesive surface in the opposite direction is also easily applied to the adhesive surface of the double-sided tape 914 and the sheet-type solar cell module 12, resulting in a problem where the bond by the double-sided tape 914 is easily released. In order to prevent such release of the double-sided tape 914 bond, the conventional construction structure 910 had measures such as providing sealing tape 916 on the outer edge of the sheet-type solar cell module 12 as shown in Figure 11, but the effect was not sufficient.

[0062] On the other hand, according to the sheet-type solar cell module installation structure 10 shown in Figures 1 to 3, as shown in Figure 10(c), when the sheet-type solar cell module 12 is pulled due to strong winds or the like, a force acts mainly on the adhesive surfaces of the tape's front portion 21, 31 and back portion 26, 36 in the shear direction (parallel to and away from the adhesive surface). Furthermore, the sheet-type solar cell module installation structure 10 structurally prevents peeling forces, as shown in Figures 10(a) and 10(b), from acting on the adhesive surface. Generally, the bonding force on the adhesive surface of tape is weak against peeling forces as shown in Figures 10(a) and 10(b), and strong against shearing forces as shown in Figure 10(c).

[0063] The sheet-type solar cell module installation structure 10 shown in Figures 1 to 3 effectively prevents peeling forces acting on the adhesive surface, as shown in Figures 10(a) and 10(b), through the organic relationship between the flexibility and holding structure of the sheet-type solar cell module 12, the tape front portions 21 and 31, and the tape back portions 26 and 36. Therefore, the sheet-type solar cell module installation structure 10 makes it difficult for the bond between the tapes 20 and 30 and the sheet-type solar cell module 12 to be released, resulting in good durability.

[0064] The following describes an example of a construction method for the sheet-type solar cell module construction structure 10. In the construction method for the sheet-type solar cell module using the sheet-type solar cell module construction structure 10, first, a sheet-type solar cell module 12 having a front surface 13 and a back surface 14 is prepared. As shown in Figure 3, the sheet-type solar cell module 12 is approximately rectangular when viewed from a direction perpendicular to the front surface 13, but the shape of the sheet-type solar cell module 12 is not limited to rectangles; it may also be circular, elliptical, hexagonal, or any other shape.

[0065] Next, the first tape front portion 21, which has a laminated structure of a base layer 22 and an adhesive layer 23, is provided on the surface 13 side of the sheet-type solar cell module 12, along the first outer peripheral portion 15a of the outer peripheral edge 15 of the sheet-type solar cell module 12. At this time, the first tape front portion 21 is positioned on the sheet-type solar cell module 12 such that the adhesive layer 23 straddles the first surface portion 13a of the sheet-type solar cell module 12, which is inside the first outer peripheral portion 15a and to which a part of the adhesive layer 23 is attached, and the area outside the first outer peripheral portion 15a.

[0066] Next, the first tape back portion 26, which has a laminated structure of a base layer 27 and an adhesive layer 28, is provided on the back surface 14 side of the sheet-type solar cell module 12 along the outer peripheral first portion 15a. At this time, the first tape back portion 26 is positioned on the sheet-type solar cell module 12 such that the adhesive layer 23 spans both the back surface first portion 14a of the sheet-type solar cell module 12, which is inside the outer peripheral first portion 15a and to which a part of the adhesive layer 28 is connected, and the area outside the outer peripheral first portion 15a.

[0067] Next, the first core material portion 40, which extends substantially parallel to the outer peripheral portion 15a and has a higher average rigidity than the sheet-type solar cell module 12, is connected to the sheet-type solar cell module 12 via the first tape front portion 21 and the first tape back portion 26.

[0068] Furthermore, the second tape front portion 31, the second tape back portion 36, and the second core material portion 50 are also placed on the sheet-type solar cell module 12 in the same manner as the first tape front portion 21, the first tape back portion 26, and the first core material portion 40. Finally, the sheet-type solar cell module 12 is installed by fixing the core material portions 40, 50 or the tape portions 20, 30 to other components 75 such as building materials using fixing members 71a, 71b, 72, etc.

[0069] Furthermore, before attaching the first tape front portion 21, the first tape back portion 26, the second tape front portion 31, and the second tape back portion 36 to the sheet-type solar cell module 12, a primer treatment may be applied to the first surface portion 13a, the first back portion 14a, etc., that the adhesive layers 23 and 28 come into contact with. In particular, if a fluorine coating or the like is formed on the surface 13 and back portion 14 of the sheet-type solar cell module 12, applying a primer treatment to the first surface portion 13a, the first back portion 14a, etc., that the adhesive layers 23 and 28 come into contact with can increase the bonding strength between the sheet-type solar cell module 12 and the first tape portion 20 and the second tape portion.

[0070] The installation structure 10 for the sheet-type solar cell module according to the present invention has been described above with reference to embodiments, but it goes without saying that the technical scope of the present invention is not limited to the embodiments described above, but includes various other embodiments and examples. For example, in the installation structure 10 for the sheet-type solar cell module, the tape and core material are arranged on a pair of long sides of the sheet-type solar cell module 12, but alternatively, the tape and core material may be arranged on a pair of short sides of the sheet-type solar cell module 12, or the tape and core material may be arranged to surround all four sides of the sheet-type solar cell module 12. Also, for example, in the installation structure 10 for the sheet-type solar cell module shown in Figures 1 to 3, the first core material 40 and the second core material 50 were round rods, but the shapes of the first core material and the second core material can be various shapes depending on conditions such as the object to which the sheet-type solar cell module 12 is fixed and the fixing location.

[0071] Figure 4 is an enlarged view of the main parts showing the connection structure of the sheet-type solar cell module 12, the front side portion 121 of the first tape, the back side portion 126 of the first tape, and the first core material portion 140 in the installation structure 110 of the sheet-type solar cell module according to the first modified example. Figure 5 is a conceptual diagram of the main parts of the installation structure 110 of the sheet-type solar cell module shown in Figure 4, viewed from the surface 13 side of the sheet-type solar cell module 12.

[0072] The installation structure 110 of the sheet-type solar cell module according to the first modified example differs from the installation structure 10 of the sheet-type solar cell module shown in Figures 1 to 3, in that the first core material portion 140 and the second core material portion 150 are elongated rectangular plates. However, the basic structure of the installation structure 110 of the sheet-type solar cell module is the same as the installation structure 10 shown in Figures 1 to 3, such as the fact that the first tape portion 120, which has a first tape front portion 121 and a first tape back portion 126, and the second tape portion 130, which has a second tape front portion and a second tape back portion, connect the sheet-type solar cell module 12 to the first core material portion 140 or the second core material portion 150. In describing the installation structure 110 of the sheet-type solar cell module, the differences from the installation structure 10 of the sheet-type solar cell module will be explained, and the common points with the installation structure 10 of the sheet-type solar cell module will not be explained.

[0073] The installation structure 110 of the sheet-type solar cell module shown in Figures 4 and 5 connects the sheet-type solar cell module 12 and the first core material portion 140 by the first tape portion 120, similar to the installation structure 10 of the sheet-type solar cell module according to the first embodiment. That is, the first tape portion 120, which has a first tape front portion 121 and a first tape back portion 126, connects the sheet-type solar cell module 12 and the first core material portion 140 by sandwiching them from both the positive Z-axis side (front surface 13 side) and the negative Z-axis side (back surface 14 side). The first core material portion 140, the first tape front portion 121, and the first tape back portion 126 extend in a strip shape substantially parallel to the outer circumference first portion 15a of the sheet-type solar cell module 12.

[0074] The first tape front portion 121, like the first tape front portion 21 shown in Figure 2, has a laminated structure of a base material layer and an adhesive layer, with the base material layer located on the positive Z-axis side of the adhesive layer and the surface of the adhesive layer facing the negative Z-axis side. The first tape front portion 121 is provided on the surface 13 side of the sheet-type solar cell module 12 such that the adhesive layer spans both the first surface portion 13a of the sheet-type solar cell module 12 and the area outside the outer peripheral first portion 15a.

[0075] The first tape back portion 126, like the first tape back portion 26 shown in Figure 2, has a laminated structure of a base layer and an adhesive layer, with the base layer located on the negative Z-axis side of the adhesive layer, the surface of the adhesive layer facing the positive Z-axis side, and the adhesive layers facing each other with respect to the first tape front portion 121. The first tape back portion 126 is provided on the back surface 14 side of the sheet-type solar cell module 12 such that the adhesive layer spans both the first back surface portion 14a of the sheet-type solar cell module 12 and the area outside the outer peripheral first portion 15a.

[0076] The adhesive layer of the front surface portion 121 of the first tape adheres to the first surface portion 13a of the sheet-type solar cell module 12 and the first core material surface portion 141a of the first core material portion 140. This connects the sheet-type solar cell module 12 and the Z-axis positive surface of the first core material portion 140. The core material surface portion 141a refers to the portion of the Z-axis positive surface of the first core material portion 140 to which a portion of the adhesive layer of the front surface portion 121 of the first tape adheres.

[0077] On the other hand, the adhesive layer of the back portion 126 of the first tape adheres to the first back portion 14a of the sheet-type solar cell module 12 and the first back portion 141b of the core material of the first core material portion 140, connecting the sheet-type solar cell module 12 and the surface of the first core material portion 40 on the negative Z-axis side. The first back portion 141b of the core material is the portion on the surface of the first core material portion 140 on the negative Z-axis side to which a part of the adhesive layer of the back portion 126 of the first tape adheres.

[0078] As shown in Figure 4, the first surface portion 13a of the sheet-type solar cell module 12 and the first back surface portion 14a of the sheet-type solar cell module 12 have approximately the same area. Also, in the first core material portion 140, the first surface portion 141a of the core material and the first back surface portion 141b of the core material have approximately the same area.

[0079] As shown in Figure 4, by making the area of ​​the adhesive surfaces on the front and back sides approximately the same, the front portion 121 and the back portion 126 of the first tape can connect the sheet-type solar cell module 12 and the first core material portion 140 in a balanced manner, thereby improving the durability of the construction structure. However, unlike the example shown in Figure 4, the area of ​​the first surface portion 13a of the sheet-type solar cell module 12 may be smaller than the area of ​​the first back surface portion 14a of the sheet-type solar cell module. In many cases, the front surface 13 of the sheet-type solar cell module 12 is a light-receiving surface and the back surface 14 is a non-light-receiving surface. In such cases, by making the area of ​​the first surface portion 13a smaller than the first back surface portion 14a, it is possible to secure the area of ​​the adhesive surface while avoiding overlap between the light-receiving surface and the first surface portion 13a, thereby improving the support strength of the sheet-type solar cell module 12.

[0080] As shown in Figures 4 and 5, the first core material portion 140 has through holes 142 formed at predetermined intervals in the X-axis direction, which is the extending direction of the first core material portion 140. These through holes 142 serve as engaging portions for fastening members 171, such as bolts, that are used to fix the first core material portion 140 to other members 75 (see Figure 1). Because the first core material portion 140 has high rigidity, this type of sheet-type solar cell module construction structure 110 allows the sheet-type solar cell module 12 to be fixed more firmly to other members 75.

[0081] Furthermore, the engagement portion in the first core material portion 140 into which the fixing member 171 engages is not limited to the through hole 142 in the Z-axis direction as shown in Figures 4 and 5. In addition to the through hole, other examples include a bent portion (see Figure 6) and a hollow cylindrical portion extending in the direction of extension of the first core material portion (see Figure 7).

[0082] As shown in Figure 5, the installation structure 110 for the sheet-type solar cell module connects the sheet-type solar cell module 12 and the second core material portion 150 by the second tape portion 130, similar to the installation structure 10 for the sheet-type solar cell module according to the first embodiment. The second tape portion 130 and the second core material portion 150 are arranged along the outer peripheral second portion 15b of the sheet-type solar cell module 12, substantially symmetrically to the first tape portion 120 and the first core material portion 140.

[0083] Similar to the first core material portion 140, the second core material portion 150 has through holes 142 formed at predetermined intervals in the X-axis direction, which is the extending direction of the second core material portion 150, into which fixing members 171 such as bolts for fixing to other members 75 (see Figure 1) engage. The second tape portion 130 and the second core material portion 150 have the same shape and structure as the first tape portion 120 and the first core material portion 140, except that they are arranged symmetrically to the first tape portion 120 and the first core material portion 140, so a detailed explanation of their structure is omitted.

[0084] The sheet-type solar cell module installation structure 110 shown in Figures 4 and 5 has similarities to the sheet-type solar cell module installation structure 10 according to the first embodiment, and provides the same effects as the sheet-type solar cell module installation structure 10.

[0085] Figure 6 is an enlarged view of the main parts showing the connection structure of the sheet-type solar cell module 12, the front portion 221 of the first tape, the back portion 226 of the first tape, and the first core material portion 240 in the installation structure 210 of the sheet-type solar cell module according to the second modified example.

[0086] The installation structure 210 for the sheet-type solar cell module according to the second modified example differs from the installation structure 110 for the sheet-type solar cell module shown in Figures 4 and 5 in that the shape of the first core material portion 240 is a plate material with a bent end that is J-shaped when viewed from the side. However, the basic structure of the installation structure 210 for the sheet-type solar cell module is the same as the installation structure 110 shown in Figure 4, such as the fact that the first tape portion 220, which has a first tape front portion 221 and a first tape back portion 226, connects the sheet-type solar cell module 12 and the first core material portion 240. In describing the installation structure 210 for the sheet-type solar cell module, the differences from the installation structure 110 for the sheet-type solar cell module will be explained, and the similarities from the installation structure 110 for the sheet-type solar cell module will not be explained.

[0087] The adhesive layer of the front portion 221 of the first tape adheres to the first surface portion 13a of the sheet-type solar cell module 12 and the first core material surface portion 241a of the first core material portion 240. As a result, the front portion 221 of the first tape connects the sheet-type solar cell module 12 and the Z-axis positive surface of the first core material portion 240. On the other hand, the adhesive layer of the back portion 226 of the first tape adheres to the back surface portion 14a of the sheet-type solar cell module 12 and the core material back surface portion 241b of the first core material portion 240, connecting the sheet-type solar cell module 12 and the Z-axis negative surface of the first core material portion 240.

[0088] As shown in Figure 6, the first core material portion 240 has an end bend portion 242 which serves as an engaging portion for a fixing member (not shown) to engage with another member 75 (see Figure 1). This end bend portion is located at the Y-axis end of the first core material portion 240 and at the end of the sheet-type solar cell module construction structure 210. With this sheet-type solar cell module construction structure 210, the sheet-type solar cell module 12 can be firmly fixed to other members while applying appropriate tension in the Y-axis direction of the sheet-type solar cell module 12.

[0089] The fixing structure on the second outer periphery side of the sheet-type solar cell module 12 in the sheet-type solar cell module installation structure 210 may be the same as or different from the fixing structure of the first outer periphery part 15a. For example, as the fixing structure on the second outer periphery side of the sheet-type solar cell module installation structure 210, a fixing structure using second core material parts 50 and 150 as shown in Figures 1 and 4 may be adopted, or another fixing structure that does not use core material parts or tape may be adopted.

[0090] The sheet-type solar cell module installation structure 210 shown in Figure 6 has similarities to the sheet-type solar cell module installation structure 110 according to the first modified example, and therefore provides the same effects as the sheet-type solar cell module installation structure 110.

[0091] Figure 7 is an enlarged view of the main parts showing the connection structure of the sheet-type solar cell module 12, the front portion 321 of the first tape, the back portion 326 of the first tape, and the first core material portion 340 in the construction structure 310 of the sheet-type solar cell module according to the third modified example.

[0092] The installation structure 310 of the sheet-type solar cell module according to the third modified example differs from the installation structure 210 of the sheet-type solar cell module shown in Figure 6 in that the shape of the first core material portion 340 is a hollow cylindrical shape extending substantially parallel to the outer circumference first portion 15a. However, the basic structure of the installation structure 310 of the sheet-type solar cell module is the same as the installation structure 210 shown in Figure 6, such as the fact that the first tape portion 320, which has a first tape front portion 321 and a first tape back portion 326, connects the sheet-type solar cell module 12 and the first core material portion 340. In describing the installation structure 310 of the sheet-type solar cell module, the differences from the installation structure 210 of the sheet-type solar cell module will be explained, and the common points with the installation structure 210 of the sheet-type solar cell module will not be explained.

[0093] The adhesive layer of the front portion 321 of the first tape adheres to the first surface portion 13a of the sheet-type solar cell module 12 and the first core material surface portion 341a of the first core material portion 340. As a result, the front portion 321 of the first tape connects the sheet-type solar cell module 12 and the Z-axis positive surface of the first core material portion 340. On the other hand, the adhesive layer of the back portion 326 of the first tape adheres to the back surface portion 14a of the sheet-type solar cell module 12 and the core material back surface portion 341b of the first core material portion 340, connecting the sheet-type solar cell module 12 and the Z-axis negative surface of the first core material portion 340.

[0094] A first joint 325 is formed between the outer peripheral first portion 15a of the sheet-type solar cell module 12 and the first core material portion 340 extending parallel thereto, where the adhesive layer of the first tape front portion 321 and the adhesive layer of the first tape back portion 326 are bonded together. The first tape front portion 321 and the first tape back portion 326 may be connected to each other so as to surround the outer periphery of the first core material portion 340 in a cross section perpendicular to its extending direction. In this case, the first tape front portion 321 and the first tape back portion 326 may be composed of a continuous, integrated tape without a joint. Such a structure also contributes to improving the connection strength between the sheet-type solar cell module 12 and the first core material portion 340 by the first tape front portion 321 and the first tape back portion 326.

[0095] As shown in Figure 7, the first core material portion 340 has a hollow portion 342 formed inside the first core material portion 340 along the extending direction of the first core material portion 340, which serves as an engaging portion for a fixing member (not shown) to engage with another member 75 (see Figure 1). A fixing member, such as a wire 371 connecting the first core material portion 340 to the other member 75 (see Figure 1), may be inserted through the hollow portion 342. With this type of sheet-type solar cell module construction structure 310, the sheet-type solar cell module 12 can be firmly fixed to other members even in places where it is difficult to form protrusions, such as the glass window surface of a building.

[0096] Furthermore, the sheet-type solar cell module installation structure 310 shown in Figure 7 has similarities to the sheet-type solar cell module installation structure 210 according to the second modified example, and thus achieves the same effects as the sheet-type solar cell module installation structure 210.

[0097] Figure 8 is an enlarged cross-sectional view of the main part of the installation structure 410 of the sheet-type solar cell module according to the fourth modified example. The installation structure 410 of the sheet-type solar cell module according to the fourth modified example differs from the installation structure 10 of the sheet-type solar cell module shown in Figure 2, etc., in that protective parts 480a and 480b are formed to cover the inner ends 421a and 426a of the front side portion 421 and the back side portion 426 of the first tape. However, the installation structure 410 of the sheet-type solar cell module is the same as the installation structure 10 shown in Figure 2, etc., except for the presence of protective parts 480a and 480b. In describing the installation structure 410 of the sheet-type solar cell module, the differences from the installation structure 10 of the sheet-type solar cell module will be explained, and the common points with the installation structure 10 of the sheet-type solar cell module will not be explained.

[0098] In the installation structure 410 of the sheet-type solar cell module according to the fourth modified example, the front portion 421 of the first tape and the back portion 426 of the first tape are strip-shaped and extend substantially parallel to the outer peripheral first portion 15a, similar to the installation structure 10 of the sheet-type solar cell module shown in Figures 1 to 3 (see Figure 3).

[0099] As shown in Figure 8, the first tape front portion 421 has a laminated structure of a base layer 422 and an adhesive layer 423, similar to the first tape front portion 21 shown in Figure 2, with the base layer 422 located on the positive Z-axis side of the adhesive layer 423 and the surface of the adhesive layer 423 facing the negative Z-axis side. The first tape front portion 421 is provided on the surface 13 side of the sheet-type solar cell module 12 such that the adhesive layer 423 straddles the first surface portion 13a of the sheet-type solar cell module 12 and the area outside the outer peripheral first portion 15a.

[0100] The first tape back portion 426 has a laminated structure of a base layer 427 and an adhesive layer 428, similar to the first tape back portion 26 shown in Figure 2, with the base layer 427 located on the negative Z-axis side of the adhesive layer 428, the surface of the adhesive layer 428 facing the positive Z-axis side, and the adhesive layers 423 and 428 facing each other with respect to the first tape front portion 421. The first tape back portion 426 is provided on the back surface 14 side of the sheet-type solar cell module 12 such that the adhesive layer 428 spans both the first back surface portion 14a of the sheet-type solar cell module 12 and the area outside the outer peripheral first portion 15a.

[0101] As shown in Figure 8, in the installation structure 410 of the sheet-type solar cell module, protective portions 480a, 480a are formed on the inner ends 421a, 426a of the first tape front portion 421 and the first tape back portion 426 of the first tape portion 420. The protective portions 480a, 480b are formed along the inner ends 421a, 426a of the first tape front portion 421 and the first tape back portion 426, so as to be continuous in the extending direction (X-axis direction) of the first tape front portion 421 and the first tape back portion 426.

[0102] The protective portion 480a is formed spanning the surface 13 of the sheet-type solar cell module 12 and the front portion 421 of the first tape, and covers the inner end 421a of the front portion 421 of the first tape. The protective portion 480b is formed spanning the back surface 14 of the sheet-type solar cell module 12 and the back portion 426 of the first tape, and covers the inner end 426a of the back portion 426 of the first tape.

[0103] Such protective parts 480a and 480b effectively prevent the adhesive layers 423 and 426 of the first tape portion 420 from being exposed to the outside at the inner ends 421a and 426a, thereby preventing the front portion 421 and back portion 426 of the first tape from starting to peel off from the sheet-type solar cell module 12. While polyurethane-based, modified silicone-based, and silicone-based sealing materials can be used as protective parts 480a and 480b, they are not particularly limited.

[0104] The installation structure 410 for the sheet-type solar cell module has strip-shaped front and back portions 421 and 426 of the first tape, which allows for the easy formation of approximately constant width front and back first portions 13a and 14a along the outer edge 15. Furthermore, by having protective portions 480a and 480b that cover the inner ends 421a and 426a, the inner ends 421a and 426a of the front portion 421 or back portion 426 of the first tape can be prevented from peeling off, thereby increasing the durability of fixing and holding the sheet-type solar cell module 12.

[0105] Furthermore, the sheet-type solar cell module installation structure 410 shown in Figure 8 has the same effects as the sheet-type solar cell module installation structure 10 according to the first embodiment in terms of its common features. Note that protective parts similar to the protective parts 480a and 480b covering the inner ends 421a and 426a may also be formed on the inner ends of the front and back portions of the second tape.

[0106] Figure 9 is an enlarged view of the main parts showing the connection structure of the sheet-type solar cell module 12, the front portion 521 of the first tape, the back portion 526 of the first tape, and the first core material portion 340 in the installation structure 510 of the sheet-type solar cell module according to the fifth modified example.

[0107] The installation structure 510 of the sheet-type solar cell module according to the fifth modified example differs from the installation structure 310 of the sheet-type solar cell module shown in Figure 7 in that the first tape front portion 521 and the first tape back portion 526 are composed of multiple tapes connected via joints. However, the basic structure of the installation structure 510 of the sheet-type solar cell module is the same as the installation structure 310 shown in Figure 7, such as the fact that the first tape portion 520 having the first tape front portion 521 and the first tape back portion 526 connects the sheet-type solar cell module 12 and the first core material portion 340. In describing the installation structure 510 of the sheet-type solar cell module, the differences from the installation structure 310 of the sheet-type solar cell module will be explained, and the similarities from the installation structure 310 of the sheet-type solar cell module will not be explained.

[0108] As shown in Figure 9, in the installation structure 510 of the sheet-type solar cell module, the front portion 521 of the first tape is constructed by laminating a first portion 521a that connects to the first surface portion 13a of the sheet-type solar cell module 12 and a second portion 521b that connects to the first surface portion 341a of the core material of the first core material portion 340. Furthermore, the back portion 526 of the first tape is constructed by laminating a first portion 526a that connects to the first back surface portion 14a of the sheet-type solar cell module 12 and a second portion 526b that connects to the first back surface portion 341b of the core material of the first core material portion 340.

[0109] Furthermore, the first portion 521a of the front portion 521 of the first tape and the first portion 526a of the back portion 526 of the first tape may be made up of a continuous, integrated tape without a joint. In addition, the second portion 521b of the front portion 521 of the first tape and the second portion 526b of the back portion 526 of the first tape may be made up of a continuous, integrated tape without a joint.

[0110] As shown in Figure 9, the front portion 521 and the back portion 526 of the first tape may be constructed by laminating multiple tapes together. In addition, in the installation structure 510 of the sheet-type solar cell module, the front portion 521 and the back portion 526 of the first tape may be constructed by laminating multiple tapes in multiple layers for the purpose of preventing peeling, reinforcement, and maintenance.

[0111] Furthermore, the sheet-type solar cell module installation structure 510 shown in Figure 9 has similarities to the sheet-type solar cell module installation structure 310 according to the third modified example, and thus achieves the same effects as the sheet-type solar cell module installation structure 310. [Explanation of Symbols]

[0112] 10, 110, 210, 310, 410… Installation structure of sheet-type solar cell modules 12…Sheet-type solar cell modules 13…Surface 13a...Surface 1st part 13b…Second surface part 14...Back side 14a...Back side first part 14b…Second part on the back side 15…Outer edge 15a...First outer circumference part 15b…Second outer circumference part 16...Body area 17...Cell 18…Margin area 20, 120, 220, 320, 420... First tape section 21, 121, 221, 321, 421... Front side of the first tape 22, 27, 422, 427...Base material layer 23, 28, 423, 428...adhesive layer 25, 325, 425...1st joint 26, 126, 226, 326, 426... Reverse side of the first tape 30...Second tape section 31... Front side of the second tape 35…Second joint part 36... Reverse side of the second tape 40, 140, 240, 340... First core material section 41a, 141a, 241a, 341a... First part of the core material surface 41b, 141b, 241b, 341b... First part of the back surface of the core material 242...Bend 50...Second core material section 71a, 71b, 72, 171... Fixing members 75...Other components 142... Through hole 342...Hollow part 371... Wire 910...Conventional construction structure 912... Waterproof sheet 914…Double-sided tape 916… Sealing tape

Claims

1. A mounting structure for a sheet-type solar cell module having a front surface and a back surface, Having a laminated structure of a base layer and an adhesive layer, the sheet-type solar cell module has a first tape surface portion provided on the surface side of the sheet-type solar cell module, along the outer peripheral first portion of the outer edge of the sheet-type solar cell module, such that the adhesive layer spans between the first surface portion of the sheet-type solar cell module which is inside the outer peripheral first portion and to which a part of the adhesive layer is attached, and the portion outside the outer peripheral first portion. Having a laminated structure of a base layer and an adhesive layer, the sheet-type solar cell module has a first tape back portion provided on the back side of the sheet-type solar cell module such that the adhesive layer spans between the first back portion of the sheet-type solar cell module, which is inside the first outer peripheral portion and to which a part of the adhesive layer is attached, and the portion outside the first outer peripheral portion. A first core material portion extends substantially parallel to the outer peripheral first portion, is connected to the sheet-type solar cell module via the front side portion and the back side portion of the first tape, and has a higher average rigidity than the sheet-type solar cell module, Installation structure for sheet-type solar cell modules.

2. The construction structure for a sheet-type solar cell module according to claim 1, wherein a first joint is formed between the first outer peripheral portion and the first core material portion, and the adhesive layer of the front side portion of the first tape and the adhesive layer of the back side portion of the first tape are bonded together.

3. Having a laminated structure of a base layer and an adhesive layer, the sheet-type solar cell module has a second tape surface portion provided on the surface side of the sheet-type solar cell module, along the outer edge of the sheet-type solar cell module, on the outer edge opposite to the first outer edge portion, such that the adhesive layer spans between the second surface portion of the sheet-type solar cell module, which is inside the second outer edge portion and to which a part of the adhesive layer is attached, and the portion outside the second outer edge portion. Having a laminated structure of a base layer and an adhesive layer, the sheet-type solar cell module has a second tape back portion provided on the back side of the sheet-type solar cell module such that the adhesive layer spans the back side second portion of the sheet-type solar cell module, which is located inside the second outer periphery portion and to which a part of the adhesive layer is attached, and the portion outside the second outer periphery portion, A second core material portion extends substantially parallel to the outer peripheral second portion, is connected to the sheet-type solar cell module via the front and back portions of the second tape, and has a higher average rigidity than the sheet-type solar cell module, The construction structure for a sheet-type solar cell module according to claim 1, further comprising the above.

4. The construction structure for a sheet-type solar cell module according to claim 3, wherein a second joint is formed between the outer peripheral second portion and the second core material portion, and the adhesive layer of the front side portion of the second tape and the adhesive layer of the back side portion of the second tape are bonded together.

5. The construction structure for a sheet-type solar cell module according to claim 1, wherein the first core material portion has an engaging portion into which a fixing member for fixing to another member engages.

6. The construction structure for a sheet-type solar cell module according to claim 3, wherein the second core material portion has an engaging portion into which a fixing member for fixing to another member engages.

7. The first front surface portion and the first back surface portion of the sheet-type solar cell module have approximately the same area. The construction structure for a sheet-type solar cell module according to claim 1, wherein the first core material surface portion to which the adhesive layer of the first tape front portion is attached and the first core material back portion to which the adhesive layer of the first tape back portion is attached are substantially the same area.

8. The first front surface portion of the sheet-type solar cell module has a smaller area than the first back surface portion of the sheet-type solar cell module. The construction structure for a sheet-type solar cell module according to claim 1, wherein the first core material surface portion to which the adhesive layer of the first tape front portion is attached and the first core material back portion to which the adhesive layer of the first tape back portion is attached are substantially the same area.

9. The first core material portion is rod-shaped or hollow cylindrical, extending substantially parallel to the first outer peripheral portion. The installation structure for a sheet-type solar cell module according to claim 1, wherein the front portion of the first tape and the back portion of the first tape are connected to each other so as to surround the outer circumference of the first core material portion.

10. The front portion and the back portion of the first tape are strip-shaped and extend substantially parallel to the first outer circumference portion. The installation structure for a sheet-type solar cell module according to claim 1, having a protective portion that spans the surface and the front portion of the first tape, or the back portion and the back portion of the first tape, along the inner ends of the front portion and the back portion of the first tape, and covering the inner ends.

11. The sheet-type solar cell module has a main body region where cells are formed when viewed from the surface side, and a blank region located on the outer periphery of the main body region where no cells are arranged. The construction structure for a sheet-type solar cell module according to claim 3, wherein the first surface portion and the second surface portion of the sheet-type solar cell module are arranged in the margin area.

12. A method for installing sheet-type solar cell modules, The steps include preparing a sheet-type solar cell module having a front surface and a back surface, The first tape, having a laminated structure of a base layer and an adhesive layer, is provided on the surface side of the sheet-type solar cell module along the outer edge first portion of the outer edge of the sheet-type solar cell module, such that the adhesive layer spans both the surface first portion of the sheet-type solar cell module, which is inside the outer edge first portion and to which a part of the adhesive layer is attached, and the portion outside the outer edge first portion. The first step is to provide the back portion of the first tape, which has a laminated structure of a base layer and an adhesive layer, on the back side of the sheet-type solar cell module along the outer peripheral first portion, such that the adhesive layer spans between the back portion of the sheet-type solar cell module, which is inside the outer peripheral first portion and to which a part of the adhesive layer is connected, and the portion outside the outer peripheral first portion. The steps include connecting a first core material portion, which extends substantially parallel to the outer peripheral portion and has a higher average rigidity than the sheet-type solar cell module, to the sheet-type solar cell module via the front and back portions of the first tape, A method for installing sheet-type solar cell modules.

Images