JP2011249420A - Solar cell unit and mounting method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell unit and the like which is easy to mount, while ensuring reliable and firm mounting.SOLUTION: A solar cell unit includes a solar cell module comprising: a flexible solar cell; a flexible surface protection member which covers the light receiving surface side of the solar cell; a flexible structural fastener which covers the opposite side of the light receiving surface of the solar cell; and a flexible adhesive material which covers the solar cell between the surface protection member and the structural fastener, and bonds the surface protection member, the structural fastener, and the solar cell together. A solar cell unit also includes reinforcing members which reinforce the solar cell module, while the reinforcing members being provided at the ends of the solar cell module.

Description

  The present invention relates to a solar cell unit and a method for mounting the solar cell unit.

  As an example of a solar cell unit, a solar cell module in which an ethylene-vinyl acetate copolymer (EVA) is filled between a reinforcing plate provided with solar cell elements (cells) and a translucent film is known. . In this solar cell unit, a stainless plate, a plated steel plate, a galvanium steel plate, or the like is used as a reinforcing plate, and is provided over the entire surface of the solar cell unit (see, for example, Patent Document 1).

Japanese Patent No. 3752861

Stainless steel plates, plated steel plates, galvanium steel plates and the like used as reinforcing plates for the solar cell unit have high rigidity. However, since the roof and exterior material of the building to which the solar cell unit can be attached are not necessarily flat, the solar cell unit having a highly rigid reinforcing plate has poor adaptability to the construction site. For this reason, it is unavoidable to provide a mounting base or a mounting jig at the construction site, and there is a problem that the mounting work is complicated and difficult to mount.
Moreover, since a solar cell unit is exposed and attached outdoors, it is required to attach more reliably and firmly.

  This invention is made | formed in view of this subject, The place made into the objective provides the solar cell unit attached easily, more reliably and firmly, and the attachment method of this solar cell unit There is to do.

  In order to achieve such an object, a solar cell unit of the present invention includes a flexible solar cell, a flexible surface protection member that covers a light receiving surface side of the solar cell, and the solar cell unit. A structural fastener that covers the side opposite to the light-receiving surface and has flexibility, covers the solar cell between the surface protection member and the structural fastener, and the surface protection member, the structural fastener, and A solar cell module having a flexible adhesive material for bonding the solar cells, and a reinforcing member for reinforcing the solar cell module, the reinforcing member being an end of the solar cell module It is provided in the solar cell unit characterized by the above-mentioned.

  According to such a solar cell unit, all of the solar cells, the surface protection member, and the structural fastener constituting the solar cell module of the solar cell unit have flexibility, and the surface protection member and the structure Since the adhesive covering the solar battery cell with the fastener for use has flexibility, the solar battery module also has flexibility. In addition, since a reinforcing member that reinforces the solar cell module is provided on the end portion side of the solar cell module, even if the solar cell module has flexibility, the end portion warps and floats or curls. Can be prevented. At this time, since the reinforcing member is provided on the end portion side of the solar cell module, it is possible to prevent the end portion side from floating and dripping while maintaining the flexibility of the entire solar cell module. Furthermore, since the structural fastener is provided on the side opposite to the light receiving surface of the solar cell module, the solar cell module can be easily placed along the unevenness of the surface of the roof or exterior material of the building where the solar cell module is attached. In addition, it can be securely attached and can be easily removed for repair or replacement. For this reason, it is possible to provide a solar cell unit that can be easily attached and more reliably and firmly attached.

In such a solar cell unit, it is desirable to have a region where the reinforcing member is not provided inside the reinforcing member provided at the end of the solar cell module.
According to such a solar cell unit, since the region where the reinforcing member inside the reinforcing member provided in the solar cell module is not provided has flexibility, it follows the unevenness of the surface of the roof or the exterior material. Therefore, it is possible to reliably engage with the structural fastener. For this reason, it is possible to provide a solar cell unit in which the end portion side of the solar cell unit is unlikely to be warped, floated, twisted, and the like, and its inner region is securely engaged and is not easily peeled off or dropped off. .

In this solar cell unit, it is preferable that the solar cell module has a rectangular shape, and the reinforcing member is provided at a corner of the solar cell module.
According to such a solar cell unit, since the reinforcing member is provided in the corner portion where the floating and the wrinkle particularly easily occur in the rectangular solar cell module, even if the solar cell module has a rectangular shape, It is possible to provide a solar cell unit that holds the solar cell module more reliably.

In such a solar cell unit, it is preferable that the solar cell module has a back surface protection member that covers the side of the solar cell opposite to the light receiving surface and has flexibility.
According to such a solar cell unit, the solar cell module is covered with the back surface protection member having flexibility on the side opposite to the light receiving surface of the solar cell, so that the entire solar cell module is in a stable state. It is possible to hold it on a roof or an exterior material as a unit.

In such a solar cell unit, it is preferable that the reinforcing member is made of metal and is attracted to a portion provided with a magnetic material.
According to such a solar cell unit, since the metal reinforcing member of the solar cell unit is attracted to the magnetic material by the magnetic force of the magnetic material, it is possible to more surely prevent the solar cell unit from floating or dripping. .

Moreover, it is a solar cell unit, Comprising: The said reinforcement member is formed with the magnetic material, and the said reinforcement member is good also as maintaining the state contact | abutted by the site | part with which the metal was provided with magnetic force.
According to such a solar cell unit, since the reinforcing member made of the magnetic material of the solar cell unit is attracted to the metal side by the magnetic force of the magnetic material, it is possible to more reliably prevent the solar cell unit from being lifted or drooped. is there.

The structural fastener of the solar cell unit is engaged with the structural fastener attached to the exterior material of the building, and the reinforcing member is attached to the portion provided with the magnetic material by the magnetic force of the magnetic material. The solar cell unit mounting method is characterized in that the solar cell unit is mounted on the building while maintaining a contact state.
According to such a solar cell unit mounting method, in the solar cell module, the structural fastener engages with the structural fastener attached to the exterior material of the building, and the reinforcing member is applied to the metal portion by magnetic force. Since the contact state is maintained, it can be easily attached and more securely and firmly attached.

Further, the structural fastener of the solar cell unit is engaged with the structural fastener attached to the exterior material of the building, and the reinforcing member is brought into contact with the metal portion by the magnetic force of the reinforcing material. The solar cell unit mounting method is characterized in that the state is maintained and the solar cell unit is mounted on the building.
According to such a solar cell unit mounting method, the solar cell module is structured such that the structural fastener is engaged with the structural fastener attached to the exterior material of the building, and the reinforcing member is made of metal by the magnetic force of the reinforcing member. Since the state which contact | abutted to the site | part is maintained, while being attached easily, it is possible to attach more reliably and firmly.

In such a solar cell unit mounting method, it is desirable to sandwich the reinforcing member together with the exterior material.
According to such a method for attaching the solar cell unit, the reinforcing member is held together with the exterior material, so that the solar cell module can be attached so as not to easily come off.

In addition, the structural fastener included in the solar cell unit and the structural fastener attached to the exterior material of the building are engaged, and a sandwiching member that sandwiches the solar cell module is attached to the exterior material. The solar cell unit is attached to the building.
According to such a solar cell unit attachment method, the solar cell module is engaged with the structural fastener attached to the exterior material of the building by the structural fastener, and the sandwiching member that sandwiches the solar cell module. Since the solar cell unit is attached to the building, it is possible to prevent the solar cell module from floating or dripping.

In this solar cell unit mounting method, a magnetic material is provided in one of the sandwiching member and the building, and a metal member is provided in the other of the sandwiching member and the building. The holding member is preferably attached to the building by the magnetic force of the magnetic material.
According to such a solar cell unit mounting method, in the solar cell module, the structural fastener engages with the structural fastener attached to the exterior material of the building, and the sandwiching member that sandwiches the reinforcing member is magnetic. Since the reinforcing member is attached to the building side by the magnetic force of the material, the solar cell module can be easily and reliably attached to the building by preventing the solar cell module from floating or dripping and attracting by the magnetic force It is.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the solar cell unit attached easily, more reliably and firmly, and the attachment method of this solar cell unit.

It is a schematic diagram of the cross section which shows the structure of the solar cell unit which concerns on 1st Embodiment of this invention. It is a figure which shows the reinforcement member provided in the solar cell unit of this embodiment. It is a schematic diagram of the cross section which shows the modification of the hook_and_loop | surface fastener attached to the solar cell unit. It is a figure which shows the state by which the reinforcement member is provided only in the both ends in the longitudinal direction of a solar cell module. It is a figure which shows the state by which the reinforcement member is provided between the both ends in the longitudinal direction of a solar cell module, and those solar cell modules. It is a figure which shows the state in which the reinforcement member is provided only in the both ends in the direction orthogonal to the longitudinal direction of a solar cell module. It is a figure which shows the state by which the reinforcement member is provided in the corner part of the solar cell module which makes a rectangular shape. It is a schematic diagram of the cross section which shows the structure of the solar cell unit which concerns on the modification of 1st Embodiment. FIG. 8A is a cross-sectional view showing a modification when a magnetic material is provided on the roof side, and FIG. 8B is a modification when a hook-and-loop fastener is provided on the surface of the reinforcing member. FIG. 8C is a cross-sectional view showing a modification in the case where another surface fastener is provided on the surface of the reinforcing member. It is a figure which shows the attachment method of the solar cell unit of 2nd Embodiment. It is a figure which shows the modification of the attachment method of the solar cell unit of 2nd Embodiment. It is a figure which shows the attachment method of the solar cell unit of 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic cross-sectional view showing the configuration of the solar cell unit according to the first embodiment of the present invention.
As shown in FIG. 1, the solar cell unit 10 of the first embodiment includes a flexible solar cell 12 and a surface protection member that covers the light receiving surface 12 a side of the solar cell 12 and has flexibility. The surface protection sheet 14, the back surface protection sheet 16 as a back surface protection member which covers the anti-light-receiving surface side of the solar battery cell 12 and has flexibility, and has flexibility, the surface protection sheet 14 and the back surface protection sheet 16 In the meantime, the solar battery cell 12 is covered, and the front surface protection sheet 14, the back surface protection sheet 16, and the ethylene-vinyl acetate polymer (EVA) resin 18 as an adhesive for adhering the solar battery cell 12, and the back surface protection. A solar cell module 11 having a surface fastener 20 as a structural fastener having flexibility, which is bonded to the sheet 16, and a supplement for reinforcing the solar cell module 11. It has member 50.

  The solar battery cell 12 is a photoelectric conversion element having a thin plate shape, and is formed of, for example, silicone and has flexibility. The present solar cell unit 10 is formed integrally with a plurality of solar cells 12 joined in a planar shape.

  The surface protective sheet 14 is a sheet formed of a fluororesin, for example, ethylene tetrafluoroethylene (ETFE), and has a thickness of 20 to 100 μm. Ethylenetetrafluoroethylene (ETFE), which is a fluororesin, has light permeability and excellent weather resistance, but has poor adhesion. For this reason, the metal sodium treatment is given to the adhesion surface 14a by the side of the photovoltaic cell 12 of the surface protection sheet 14 as a surface activation process. By this metal sodium treatment, the fluorine atoms on the bonding surface 14a are blown off, and a carbon skeleton is constructed to improve the adhesion. The adhesive surface 14a treated with metallic sodium is degreased using toluene or the like. Here, corona discharge treatment, plasma treatment or sputtering treatment may be performed as the surface activation treatment.

  The back surface protection sheet 16 is formed of, for example, weather-resistant polyethylene terephthalate (PET) and has a thickness of 20 to 200 μm. Here, the back surface protection sheet 16 may be made of polycarbonate (PC) or polypropylene (PP).

  The ethylene-vinyl acetate polymer (EVA) resin 18 is transparent and flexible, and is excellent in elasticity and adhesiveness. For this reason, the ethylene-vinyl acetate polymer (EVA) resin 18 is interposed between the surface protection sheet 14 and the back surface protection sheet 16 in a state of covering the solar battery cell 12 so as to protect the surface. The sheet | seat 14, the back surface protection sheet 16, and the photovoltaic cell 12 are adhere | attached.

  The hook-and-loop fastener 20 is a hook-and-loop fastener in which the engaging portions 20a provided at the facing portions are engaged and joined when two members forming a pair press the surfaces facing each other. In the solar cell unit 10, one of the pair of hook-and-loop fasteners 20 is provided on the anti-solar cell side of the back surface protection sheet 16.

  FIG. 2 is a view showing a reinforcing member provided in the solar cell unit of the present embodiment. In FIG. 2, the state which looked at the solar cell unit 10 from the non-light-receiving surface side is shown.

  A plate-like reinforcing member 50 made of a magnet as a magnetic material is provided on the end of the rectangular solar cell module 11 on the entire circumference on the side opposite to the light receiving surface, that is, on the side opposite to the light receiving surface of the back surface protection sheet 16. It has been. In the example of the present embodiment, four reinforcing members 50 are arranged in a rectangular shape at the peripheral end portion along the four sides of the back surface protection sheet 16 having a rectangular shape. And the hook_and_loop | surface fastener 20 is provided inside the reinforcement member 50 arrange | positioned at rectangular shape.

The hook-and-loop fastener 20 and the reinforcing member 50 are bonded to the adhesive surface 16b on the anti-solar battery cell side of the back protective sheet 16 subjected to the degreasing treatment with an acrylic modified silicone elastic adhesive 22 as an elastic adhesive. . At this time, the application amount of the acrylic modified silicone elastic adhesive 22 applied to the adhesive surfaces 16b, 20b between the back surface protection sheet 16 and the surface fastener 20 is, for example, 120 to 200 g / m ² .

  FIG. 3 is a schematic cross-sectional view showing a modification of the hook-and-loop fastener attached to the solar cell unit. As the hook-and-loop fastener 20, not only the hook-and-loop fastener 20 having a hook shape as shown in FIG. 1 and the other loop-shaped, as shown in FIG. However, the surface fastener 21 may have a shape in which the protrusions 21a are expanded at the tips and the protrusions 21a are engaged with each other. Here, examples of the hook-and-loop fastener include, for example, Scotchimate (registered trademark) Hook & Loop Fastener, Dual Lock (registered trademark) Fastener manufactured by Sumitomo 3M Limited.

  In the manufacturing method of the solar cell unit 10 of the first embodiment, first, the surface protection sheet 14 and the back surface are covered with an ethylene-vinyl acetate polymer (EVA) resin 18 that covers the plurality of solar cells 12 joined in a planar shape. A degreasing process is performed on the outer surface to be the bonding surface 16b of the back surface protection sheet 16 of the sheet-like solar cell module 11 to which the protection sheet 16 is bonded. In the case where the surface fastener 20 is bonded at the time of manufacturing the solar cell module 11, the degreasing treatment is performed when the degreasing treatment is performed on the adhesion surfaces 14 a and 16 a on the solar battery cell 12 side of the surface protection sheet 14 and the back surface protection sheet 16. , You may go at the same time.

  Next, the acrylic modified silicone elastic adhesive 22 is applied to the back protective sheet 16 subjected to the degreasing treatment and the adhesive surface 20b of the surface fastener 20. And after apply | coating the acrylic modified silicone type elastic adhesive 22, the back surface protection sheet 16, the hook_and_loop | surface fastener 20, and the reinforcement member 50 are adhere | attached, for example, taking an open time for about 11 minutes. At this time, when the pressure is applied by the roller, the adhesive force between the back surface protection sheet 16 and the surface fastener 20 is increased, and the adhesion reliability is improved.

  The solar cell unit 10 of the first embodiment is attached to a metal roof or a metal exterior member 30 such as a building to which the surface fastener 20 is previously attached with a double-sided tape 32 or the like. That is, the solar cell unit 10 is attached by joining the hook-and-loop fastener 20 provided in advance on the roof or exterior material 30 of the building or the like serving as the installation location and the hook-and-loop fastener 20 provided in the solar cell unit 10, The reinforcement member 50 provided at the peripheral end portion of the battery module 11 is completed simply by placing it on the metal roof or the metal exterior member 30. That is, the solar cell unit 10 is held on the building side by the magnetic force of the reinforcing member 50 made of the hook-and-loop fastener 20 and the magnet.

  According to the solar cell unit 10 of the first embodiment, all of the solar cells 12, the surface protection sheet 14, the back surface protection sheet 16, and the structural fastener 20 constituting the solar cell module 11 have flexibility. In addition, since the ethylene-vinyl acetate polymer (EVA) resin 18 that covers the solar battery cell 12 between the surface protection sheet 14 and the back surface protection sheet 16 has flexibility, the solar battery module 11 Has flexibility. Moreover, since the reinforcing member 50 which reinforces the solar cell module 11 is provided on the peripheral end side of the solar cell module 11 over the entire circumference, even if the solar cell module 11 has flexibility, It is possible to prevent the peripheral end portion from warping and floating or falling off. At this time, since the reinforcing member 50 is provided on the end portion side of the solar cell module 11, it is possible to prevent the end portion side from being lifted or twisted while maintaining the flexibility of the entire solar cell module 11.

  Furthermore, since the surface fastener 20 is provided in the area | region which has the softness | flexibility area | region where the reinforcement member 50 by the side of the light-receiving surface of the solar cell module 11 is not provided, roofs or exteriors, such as a building to which the solar cell module 11 is attached The solar cell module 11 can be easily and reliably attached along the unevenness of the surface of the material 30 and can be easily removed at the time of repair or replacement. For this reason, it is possible to provide the solar cell unit 10 that is easily attached and that is more securely and firmly attached.

  In the solar cell module 11 of the first embodiment, since the solar cell module 11 is covered with the back surface protection sheet 16 having flexibility on the side opposite to the light receiving surface of the solar cell 12, the entire solar cell module 11 is covered. In a stable state, it can be held on the roof or the exterior material 30 as one body.

  Furthermore, the reinforcing member 50 of the solar cell unit 10 of the first embodiment is formed of a magnet, and the solar cell unit 10 is attached to a portion provided with a metal. The reinforcing member 50 is held in a state of being pulled toward the metal side. For this reason, it is possible to hold the solar cell unit 10 more reliably.

  And according to the attachment method of the solar cell unit 10 of the said embodiment, the hook-and-loop fastener 20 which the solar cell unit 10 has, and the hook-and-loop fastener 20 attached to the exterior | packing material 30 of a building are engaged, and the reinforcement member 50 is attached. The solar cell unit can be made more reliably and easily by simply contacting the metal part on the roof side with a magnetic force so as to follow the unevenness of the surface of the roof and the exterior material 30 and preventing the lifting and dripping by the reinforcing member 50. 10 can be installed and replaced. In particular, since the solar cell unit 10 can be attached and detached with the hook-and-loop fastener 20 and a special construction technique is not required for the installation work, the solar cell unit 10 can be easily attached and replaced even without a specialized worker. Is possible.

  4-7 is a figure for demonstrating the modification of arrangement | positioning of a reinforcement member.

  In 1st Embodiment, although the reinforcement member 50 was demonstrated about the example provided in the perimeter of the solar cell module 11, the reinforcement member 50 does not necessarily need to be provided over the perimeter of the solar cell module 11. FIG. Good. For example, as shown in FIGS. 4 and 5, the reinforcing members 50 may be provided only at both ends in the longitudinal direction of the solar cell module 11 or only at both ends in the direction orthogonal to the longitudinal direction.

  Further, as shown in FIG. 6, reinforcing members 50 are provided at both ends in a direction orthogonal to the longitudinal direction, and a space is provided between them, or only the corners of the solar cell unit 10 are provided as shown in FIG. 7. May be provided. In this case, in the solar cell unit 10 having a rectangular shape, the reinforcing member 50 is provided at a corner portion where the floating or wobbling is particularly likely to occur. Therefore, even if the solar cell unit 10 has a rectangular shape, It is possible to hold the battery unit 10 more reliably.

  Moreover, the surface fastener 20 provided inside the reinforcing member 50 provided at the end of the solar cell module 11 is provided on the entire surface of the region where the reinforcing member 50 of the sheet-like solar cell module 11 is not necessarily provided. There is no need to be provided, and it is only necessary that the bonding strength sufficient to hold the solar cell unit 10 is secured between the roof fastener 20 and the surface fastener 20 provided on the exterior member 30 or the like.

  FIG. 8 is a schematic cross-sectional view showing a configuration of a solar cell unit according to a modification of the first embodiment, and FIG. 8A shows a modification when a magnetic material is provided on the roof side. 8 is a cross-sectional view, FIG. 8B is a cross-sectional view showing a modification in the case where a surface fastener is provided on the surface of the reinforcing member, and FIG. 8C is another surface fastener provided on the surface of the reinforcing member. It is sectional drawing which shows the modification in the case of having.

  In the first embodiment, the example has been described in which the reinforcing member 50 made of a magnet is brought into contact with a metal roof or the like and held by a magnetic force. You may provide the member made from. Further, as shown in FIG. 8A, the solar cell unit 10 including the metal reinforcing member 51 may be attached to a part such as a roof provided with the magnetic material 35. Also in this case, since the reinforcing member 51 of the solar cell unit 10 is attracted to the magnetic material by the magnetic force as in the above embodiment, the solar cell unit 10 is more reliably held on the roof side. Is possible. Further, since the hook-and-loop fastener 20 engages with the hook-and-loop fastener 20 attached to the exterior material of the building and the reinforcing member 51 is attracted to the magnetic material 35 by magnetic force, it can be easily attached and more reliably and firmly. It is possible to attach.

  Moreover, as shown in FIG.8 (b) and FIG.8 (c), the surface fasteners 20 and 21 are provided in the surface of the metal reinforcement member 50 provided in the edge part of the solar cell module 11, and a solar cell module. 11 may be joined by hook-and-loop fasteners 20 and 21 in the entire area. In this case, the reinforcing member 50 and the hook-and-loop fasteners 20 and 21 can more reliably prevent the end portion of the solar cell module 11 from warping and rising or falling.

FIG. 9 is a diagram showing a method for attaching the solar cell unit of the second embodiment.
In 1st Embodiment, although the attachment method which hold | maintains the solar cell unit 10 with the hook_and_loop | surface fastener 20 and a magnet was demonstrated, the reinforcement member 51 is the board | plate material made from stainless steel in the attachment method of the solar cell unit 10 of 2nd Embodiment. As shown in FIG. 9, the solar cell unit 10 includes a clip-like holding member 55 and a hook-and-loop fastener 20 that hold a portion where the reinforcing member 51 of the solar cell unit 10 is provided together with the thin plate-shaped exterior member 30. Holding.

  In this case, the hook-and-loop fastener 20 provided in advance on the roof or exterior material 30 of the building or the like serving as the installation location and the hook-and-loop fastener 20 provided in the solar cell unit 10 are joined and the peripheral edge of the solar cell module 11 is joined. After the reinforcing member 51 provided in the section is disposed on the exterior member 30, the portion where the reinforcing member 51 of the solar cell unit 10 is provided together with the exterior member 30 is simply sandwiched by the sandwiching member 55.

  According to the method for attaching the solar cell unit 10 of the second embodiment, since the reinforcing member 51 is sandwiched with the exterior material 30, it is possible to attach the solar cell module 11 so that it is more difficult to come off. At this time, the reinforcing member 50 made of a magnet is used, and the reinforcing member 50 of the solar cell unit 10 is provided together with the outer packaging material 30 in the holding member 55 after the reinforcing member 50 is brought into contact with the metallic outer packaging material. If the part is held, the solar cell unit 10 can be held more reliably. Here, as the sandwiching member, if it is possible to sandwich the portion where the reinforcing member 50 of the solar cell unit 10 is provided together with the exterior member 30, for example, a so-called eyeball clip, a double clip or the like is narrow. It may be a holding member.

  FIG. 10 is a diagram showing a modification of the solar cell unit attachment method of the second embodiment. In the solar cell unit mounting method of the second embodiment, the thin plate-shaped exterior member 30 and the solar cell unit 10 are sandwiched by the clip-shaped sandwiching member 55, but the roof is thicker than the exterior member 30. When sandwiching the part 31 and the like and the solar cell unit 10, as shown in FIG. 10, the sandwiching member may be sandwiched by using a G-type clamp 56 or the like.

  FIG. 11 is a diagram illustrating a method for attaching the solar cell unit according to the third embodiment. The attachment method of the solar cell unit of the third embodiment attaches the solar cell unit 10 to a building using a holding member 57 having a magnet.

  As shown in FIG. 11, the sandwiching member 57 has a sandwiching portion 57 a that sandwiches a portion where the reinforcing member 51 of the solar cell unit 10 is provided, and is provided with a magnet 57 b and is a so-called magnet clip type narrowing. This is a holding member 57.

  In this case, the hook-and-loop fastener 20 provided in advance on the roof or exterior material 30 of the building or the like serving as the installation location and the hook-and-loop fastener 20 provided in the solar cell unit 10 are joined and the peripheral edge of the solar cell module 11 is joined. This is completed simply by placing the holding member 57 that holds the portion where the reinforcing member 51 is provided on the roof of the building or the like as the installation location or the metal portion provided in advance in the exterior material 30.

  According to the solar cell unit mounting method of the third embodiment, the solar cell module 11 is engaged with the hook-and-loop fastener 20 attached to the exterior material 30 of the building, and the solar cell module 11 is sandwiched. Since the solar cell unit 10 is attached to the building by the holding member 57, it is possible to prevent the solar cell module 11 from floating or dripping.

  In the solar cell module 11, the hook-and-loop fastener 20 engages with the hook-and-loop fastener 20 attached to the exterior material 30 of the building, and the holding member 57 holding the reinforcing member 51 is strengthened by the magnetic force of the magnetic material. Therefore, the solar cell module 11 can be easily and surely attached to the building by preventing the solar cell module 11 from rising or falling and attracting it by magnetic force. At this time, the holding member 57 may be made of metal, and the holding member 57 holding the solar cell unit 10 may be held by the magnetic force of the magnetic material provided on the building side.

  In the said embodiment, although the example which performed the degreasing process to the adhesion surface 16b of the back surface protection sheet 16 to which the hook_and_loop | surface fastener 20 adhere | attaches was demonstrated, the embossing was further formed in the adhesion surface 16b of the back surface protection sheet 16 Also good. When the embossed surface is formed on the adhesive surface 16b of the back surface protection sheet 16, it is possible to provide the solar cell unit 10 in which the back surface protection sheet 16 and the surface fastener 20 are more firmly bonded. Further, the degreasing process is not necessarily performed.

  Moreover, the said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

10 solar cell unit, 11 solar cell module, 12 solar cell,
12a light-receiving surface, 14 surface protective sheet, 14a adhesive surface, 16 back surface protective sheet,
16b adhesive surface, 18 ethylene-vinyl acetate polymer (EVA) resin,
20 surface fastener, 20a engagement part, 20b adhesion surface, 21 surface fastener,
21a protrusion, 22 acrylic modified silicone elastic adhesive, 30 exterior material,
31 roof part, 32 double-sided tape, 35 magnetic material, 50 reinforcing member,
51 Reinforcing member, 55 Nipping member, 56 G-type clamp, 57 Nipping member,
57a Nipping part, 57b Magnet

Claims (11)

A flexible solar cell;
A surface protection member that covers the light-receiving surface side of the solar battery cell and has flexibility;
A structural fastener that covers the anti-light-receiving surface side of the solar battery cell and has flexibility;
The solar cell is covered between the surface protective member and the structural fastener, and the surface protective member, the structural fastener, and the solar cell are bonded to each other, and an adhesive having flexibility ,
A solar cell module, and
A reinforcing member for reinforcing the solar cell module,
The said reinforcement member is provided in the edge part of the said solar cell module, The solar cell unit characterized by the above-mentioned. The solar cell unit according to claim 1,
A solar cell unit having a region where the reinforcing member is not provided inside the reinforcing member provided at an end of the solar cell module. The solar cell unit according to claim 1 or 2,
The solar cell module has a rectangular shape,
The said reinforcement member is provided in the corner part of the said solar cell module, The solar cell unit characterized by the above-mentioned. It is a solar cell unit in any one of Claims 1 thru | or 3, Comprising:
The solar cell module includes a back surface protection member that covers the side opposite to the light receiving surface of the solar cell and has flexibility. It is a solar cell unit in any one of Claim 1 thru | or 4, Comprising:
The solar cell unit, wherein the reinforcing member is made of metal and is attracted to a portion provided with a magnetic material. It is a solar cell unit in any one of Claim 1 thru | or 4, Comprising:
The solar cell unit, wherein the reinforcing member is made of a magnetic material, and the reinforcing member is kept in contact with a portion provided with metal by a magnetic force.   The structural fastener included in the solar cell unit according to claim 5 is engaged with a structural fastener attached to a building exterior material, and the reinforcing member is made of the magnetic material by the magnetic force of the magnetic material. A method for attaching a solar cell unit, wherein the solar cell unit is attached to the building while maintaining a state in contact with the provided part.   The structural fastener included in the solar cell unit according to claim 6 is engaged with a structural fastener attached to a building exterior material, and the reinforcing member is brought into contact with the metal portion by the magnetic force of the reinforcing material. A method of attaching a solar cell unit, wherein the solar cell unit is attached to the building while maintaining a contact state. A method for mounting a solar cell unit according to claim 7 or claim 8,
A method of attaching a solar cell unit, wherein the reinforcing member is sandwiched together with the exterior material. While engaging the said structural fastener which the solar cell unit in any one of Claims 1 thru | or 6 has, and the structural fastener attached to the exterior material of a building,
A method for attaching a solar cell unit, comprising: attaching a sandwiching member for sandwiching the solar cell module to the exterior member; and attaching the solar cell unit to the building. It is the attachment method of the solar cell unit of Claim 10, Comprising:
One of the sandwiching member and the building is provided with a magnetic material, and the other of the sandwiching member and the building is provided with a metal member,
The method for attaching a solar cell unit, wherein the holding member is attached to the building by the magnetic force of the magnetic material.

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