JP2003056146A - Solar battery device, its installation method, and its replacement method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar battery device formed by engaging a solar battery module and allowing its easy installation and replacement, an installation method for the solar battery device, and its replacement method. SOLUTION: A second engagement part 112 of the solar battery module 51 in the downstream is arranged to be overlaid below a first engagement part 111 of the solar battery module 51 in the upstream, and they are fixed by engaging a first locking part 61 in a locking member 6 with the first engagement part 111, and then, engaging a second locking part 62 in the locking member 6 with the second engagement part 112. For replacement of the solar battery module 51, the locking member 6 is broken and removed away.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell device in which a solar cell module is engaged, and a method for installing and replacing the solar cell device.

[0002]

2. Description of the Related Art A solar cell device, for example, has a plurality of solar cell modules fastened to respective roof surfaces using fixing screws on a roof of a private house, and adjacent solar cell modules are engaged with each other. Then, it will be installed in a stepped manner from the underwater side (eave side) toward the upper water side (ridge side).
The solar cell device improves the appearance by installing each solar cell module in a stepped manner, and fastens it to the roof surface with fixing screws, and further fixes adjacent solar cell modules by engaging with each other. FIG. 10 is a schematic vertical cross-sectional view showing a state in which a conventional solar cell device is installed on a roof surface, and FIG. 11 is an enlarged view in the vicinity of an engaging portion of a solar cell module that constitutes the solar cell device. .

In the figure, reference numeral 50 denotes a solar cell module. The solar cell module 50 comprises a substrate 10 made of a rectangular steel plate, and a solar cell having a plurality of solar cell elements connected to one surface of the substrate 10. The battery panel 2 is bonded using EVA resin 3. The substrate 10 has a drooping portion 10a that hangs integrally with the underwater side end portion in a state in which the steel plate is bent, in a direction opposite to the stacking direction of the solar cell panels 2.
The hanging part 10a has a hook-shaped first engaging part 101 that engages with the second engaging part 102 of the adjacent solar cell module 50 on the underwater side at the end of the hanging part 10a. In addition, the substrate 10 has a rising portion 10b that integrally rises in the stacking direction at an end portion on the water side in a manner in which the steel plate is bent, and the rising portion 10b is an adjacent solar cell on the water side. First engaging portion 1 of module 50
A hook-shaped second engaging portion 102 that engages with 01 is provided at the end of the rising portion 10b. The board 10 is integrally provided on the water side with the third engaging portion 103 in a state in which the steel plate is bent.

Each solar cell module 50 has a roof surface 44.
The heat insulating materials 40, 40, ... Provided on the upper side of the heat insulating material 40 are respectively arranged on the water side of the heat insulating materials 40, and the engaging tools 41 fastened to the roof surface 44 by fixing screws 42 are arranged. The engagement tool 41 and the third engagement portion 103 are engaged with each other.

FIG. 12 is an explanatory view for explaining a method of installing the solar cell device. The engaging member 41 has a third engaging portion 1
03 of the solar cell module 50 is fixed on the roof surface 44 by engaging 03, the substrate 10 of the new solar cell module 50 is placed on the heat insulating material 40 located on the water side of the solar cell module 50. Place it so that it is located under the water. Next, the solar cell module 50 is moved in the water direction, and the first engaging portion 1 of the solar cell module 50 is moved.
01 is brought into contact with the second engaging portion 102 of the solar cell module 50 already installed, and further, the second engaging portion 10
2 and the first engaging portion 101 are pushed in until they engage with each other. At this time, the first engaging portion 101 and the second
When the engaging portion 102 and the first engaging portion 101 are pressed to the inside of the second engaging portion 102 when the engaging portions 102 and 102 are compressed with each other, the first engaging portion 101 and the second engaging portion 102 are elastically restored to their original positions. Since the shape returns to the shape, the first engaging portion 101 and the second engaging portion 102 mesh with each other. Therefore, the solar cell modules 50, 50
Is fixed in the upward direction and the downward direction (hereinafter referred to as the up-down direction).

In the above solar cell device, each solar cell module 50 is fixed to the roof surface 44 by engaging the third engaging portion 103 and the engaging tool 41. Further, by engaging the first engaging portion 101 and the second engaging portion 102 of the adjacent solar cell modules 50, 50, respectively, the underwater solar cell module 50 becomes the overwater solar cell module 50. Fixed, solar cell module 5
It is possible to prevent 0, 50, ... from dropping downward in the water or shifting upward in the water.

[0007]

In the conventional solar cell device, the first engaging portion 1 is integrally provided on the substrate 10 of each solar cell module 50 constituting the solar cell device.
01 and the second engaging portion 102 only, the first engaging portion 101 included in the solar cell module on the water side and the second engaging portion 102 included in the solar cell module 50 on the water side.
Since the solar cell modules 50, 50, ... Are fixed by engaging with, when arranging each solar cell module 50 in a stepped manner, when arranging each solar cell module from the water side to the water side in order. Means that the hanging part 10a provided on the solar cell module on the water side is
There is a problem that the engagement with the engagement portion 102 and the engagement between the third engagement portion 103 and the engagement tool 41 are obstructed. Therefore, when replacing one module, it is necessary to remove all the solar cell modules 50, 50, ... Which are arranged above the solar cell module 50 to be replaced.

Further, since the solar cell modules 50 are sequentially arranged from underwater to above water, the solar cell modules 50 on the water side above the arranged solar cell modules 50.
When arranging the solar cells, there is a small amount of scaffolding for the operator, and the solar cell module 50 already arranged may be used as the scaffolding. Therefore, the operator may apply unnecessary external force to the solar cell module 50. there were.

The present invention has been made in view of the above circumstances, and an arbitrary solar cell module can be provided by engaging the solar cell modules arranged in a step with each other using a locking member. An object of the present invention is to provide a solar cell device in which only the solar cell module can be removed and a new solar cell module can be arranged when the solar cell module is replaced. Another object of the present invention is that the solar cell modules having the rising portions having the engaging portions at both ends are engaged with each other by using the engaging members having the hook-like engaging portions. Another object of the present invention is to provide a solar cell device in which only the solar cell module can be easily removed and a new solar cell module can be easily arranged when replacing the solar cell module.

Another object of the present invention is to engage the solar cell modules with each other by using a locking member which can be easily broken, so that when any solar cell module is replaced, the solar cell module can be replaced. It is to provide a solar cell device that can be removed more easily.
Another object of the present invention is to provide a locking member having sufficient strength by easily engaging the solar cell module with each other by using a locking member made of a metal plate having a predetermined thickness. It is to provide a solar cell device that can be destroyed.

Another object of the present invention is to arrange the solar cell modules in a step and engage them with each other by using a locking member, thereby improving workability in arranging the solar cell modules. It is to provide a method of installing a solar cell device. Another object of the present invention is to arrange solar cell modules having a rising portion having an engaging portion at both ends in a stepped manner, and to engage with each other by using a locking member having a hook-shaped locking portion. Accordingly, it is an object of the present invention to provide a method for installing a solar cell device, which can further improve workability when arranging a solar cell module. Still another object of the present invention is to destroy and remove the locking member that engages the solar cell modules with each other, then remove the solar cell module to be replaced, and use a new locking member. Another object of the present invention is to provide a method for exchanging a solar cell device, which can improve workability when exchanging a solar cell module by engaging adjacent solar cell modules with another solar cell module.

[0012]

According to a first aspect of the present invention, there is provided a solar cell device in which a plurality of solar cell modules are arranged in a step, and each solar cell module is engaged with both ends in the stepping direction. In the solar cell device having a section, the engaging section of the other solar cell module is arranged below the engaging section of one solar cell module of the solar cell modules adjacent to each other in the stepping direction, and both ends are arranged. Each of the locking members is provided with a locking part, and one locking part is engaged with the engaging part of the upper solar cell module, and the other locking is engaged with the engaging part of the lower solar cell module. It is characterized in that the parts are engaged.

In the first invention, unlike the conventional solar cell device in which the adjacent solar cell modules are engaged by directly engaging the engaging portions provided in each solar cell module with each other. , Because the adjacent solar cell modules are engaged by engaging the engaging portions with each other via the locking member, when the solar cell module is moved relative to the adjacent solar cell module, The engaging portion abuts on the locking portion to prevent relative movement. Further, in the case of replacing any solar cell module, by destroying and removing the locking member engaged with the solar cell module to be replaced and the adjacent solar cell module, the above-mentioned water surface of the solar cell module is removed. Even when the solar cell module is arranged on the side, only the solar cell module can be removed and only a new solar cell module can be arranged, improving workability and construction. The time can be shortened.

Further, when the rising portions and the engaging portions of the solar cell module and the locking member are formed of the same material (steel plate, stainless plate, aluminum plate, etc.), the solar cell module Since it is possible to reduce the appearance discomfort between the locking member and the locking member, it is possible to improve the appearance of the solar cell device.

In the solar cell device according to the second aspect of the present invention, the solar cell module is formed by laminating solar cell elements on one surface of a rectangular substrate, and stands up at both ends of the substrate in the laminating direction of the solar cell elements. A rising portion and an engaging portion formed by bending an end portion of the rising portion toward the solar cell element side, respectively, the locking member, leaving a flat portion in the central portion of a rectangular flat plate, The flat plate is provided with a bent portion formed by bending both ends thereof in the same direction, and one or both of the bent portions has a locking portion formed by hooking the end portion toward the flat surface side. Characterize.

According to the second aspect of the invention, a locking member having one locking portion formed in a hook shape and the other locking portion formed in a hook shape or other than the hook shape is used. Then, the solar cell modules having the engaging portions formed by bending the ends of the respective rising portions are engaged with each other. At this time, the engaging portion of the upper solar cell module is engaged with the hook-shaped engaging portion of the engaging member, and the engaging portion of the lower solar cell module is hook-shaped or other than hook-shaped. Since the formed locking portion is engaged, when the solar cell module moves relative to the adjacent solar cell module, the engaging portion abuts the locking portion to prevent relative movement. You can Also,
When the engagement portion of the lower solar cell module is formed in a hook shape, the engagement portion and the locking portion formed in a hook shape,
It can be engaged more firmly. Further, since the engaging portion and the locking portion can be engaged with each other so as to be engaged with each other, the strength can be improved as compared with the case where the adjacent solar cells are fastened to each other by using screws, for example.

Further, when an arbitrary solar cell module is replaced, it is replaced by destroying and removing the locking members that are engaged with the solar cell module to be replaced and the adjacent solar cell modules. Even when the solar cell module is arranged on the water side of the solar cell module to be replaced, only the solar cell module to be replaced can be removed, and only a new solar cell module can be arranged. Therefore, the workability can be improved and the construction time can be shortened. Further, since the solar cell module includes a substrate, a steel plate, a stainless plate, an aluminum plate, or the like is used as the substrate, and when the solar cell module of the present invention is installed on, for example, a roof, the fire resistance of the roof surface depends on the substrate. In addition, the roof surface can be protected from rain and dew. Further, the rising portion of the solar cell module can prevent the roof surface from being flooded.

Further, for example, when the engaging portion of the solar cell module and the flat portion of the locking member are in close contact with each other and the engaging portion of the locking member and the rising portion of the solar cell module are in close contact with each other, The roof surface can be further waterproofed because the inundation path to the roof surface can be blocked. Furthermore,
If the rising portion and the engaging portion of the solar cell module, the substrate, and the locking member are formed by using the same material (steel plate, stainless plate, aluminum plate, or the like), Since it is not necessary to prepare other materials to be made and the appearance discomfort between the solar cell module and the locking member can be reduced, the appearance of the solar cell device can be improved.

The solar cell device according to the third invention is characterized in that the locking member is constructed so as to be destructible. In the third aspect of the invention, since the locking member is formed of, for example, a thin metal plate, it can be easily cut using a metal plate cutter. It is possible to easily break the locking member and easily remove only the solar cell module.

The solar cell device according to a fourth aspect of the present invention is characterized in that the locking member is made of a steel plate, a stainless plate, or an aluminum plate having a predetermined thickness. In the fourth aspect of the invention, when the locking member is formed using a steel plate, a stainless plate, or an aluminum plate having a thickness of about 0.1 mm to 1.6 mm, for example, it has sufficient strength at the time of engagement. However, at the time of breakage, since the metal plate cutter can easily cut and break the breaker, the locking member having sufficient strength can be easily broken. Further, when the rising portion and the engaging portion of the solar cell module, the substrate, and the like are made of a steel plate, a stainless plate, or an aluminum plate, it is not necessary to prepare another material to be the locking member, and Since it is possible to reduce the appearance discomfort between the solar cell module and the locking member, the appearance of the solar cell device can be improved.

In the method for installing a solar cell device according to the fifth aspect of the present invention, a plurality of solar cell modules each having an engaging portion at both ends thereof are arranged in a stepped manner such that the directions of the both ends are in the stepping direction. In the installation method of the solar cell device, the engaging portion of the other solar cell module is arranged below the engaging portion of one solar cell module of the solar cell modules adjacent to each other in the stepping direction, and the both ends are respectively arranged. Engage one engaging part with the engaging part of the upper solar cell module, and engage the other engaging part with the engaging part of the lower solar cell module, using the engaging member with the engaging part It is characterized by

According to the fifth aspect of the invention, the solar cell modules can be arranged in a stepwise manner from the underwater side to the waterside side in the same manner as in the prior art, and the solar cell modules can be stepped from the water side to the underwater side. When arranging, arrange the solar cell module, arrange the solar cell module on the underwater side of the solar cell module, and when fixing the water side end of the solar cell module with the fixing screw, The solar cell module is slightly lifted and fastened, and then each engaging portion is engaged with the engaging member having two engaging portions that engage with the engaging portion, so that the solar cell module is integrated with the solar cell module. Unlike the conventional solar cell device in which the provided engaging parts are engaged with each other, the solar cell modules are sequentially arranged not only from the underwater side to the above water side but also from the above water side to the below water side. Can be installed and Yoshido can be increased. Further, when the solar cell modules are sequentially arranged from the water side to the water side, an operator may apply unnecessary external force to the solar cell module by using the already arranged solar cell module as a scaffold. Absent.

In a method of installing a solar cell device according to a sixth aspect of the present invention, the solar cell module is formed by laminating solar cell elements on one surface of a rectangular substrate, and both ends of the substrate are
Using a solar cell module including a rising portion rising in the stacking direction of the solar cell element and an engaging portion formed by bending an end portion of the rising portion toward the solar cell element side, as the locking member , A flat portion is left in the central portion of the rectangular flat plate, and a bent portion is formed by bending both end portions of the flat plate in the same direction, and one or both of the bent portions have end portions facing the flat portion. A locking member having a locking portion formed in a hook shape is used.

In the sixth invention, for example, the solar cell modules constituting the solar cell device according to any one of the first invention to the fourth invention are arranged in a stepwise manner from the underwater side to the overwater side in a conventional manner. In addition, when arranging the solar cell module stepwise from the water side to the water side, the solar cell module is arranged, and the solar cell module is arranged on the water side of the solar cell module. , Because the engaging portion of the solar cell module on the water side and the engaging portion of the solar cell module on the water side are engaged using the locking member that constitutes the solar cell device, The solar cell modules can be sequentially arranged not only on the side but also from the water side to the water side, so that the degree of freedom of installation work can be increased.

In addition, one of the engaging portions of the engaging member is engaged with the engaging portion of the solar cell module, and then the other engaging portion is disposed below the solar cell module. Since the module engages with the engaging portion of the module, the engagement between the solar cell module and the engaging member is easy, and when both the engaging portion and the engaging portion are hook-shaped, the solar cell is more firmly attached. The module and the locking member can be engaged.

According to a seventh aspect of the present invention, there is provided a method for replacing a solar cell device, wherein a solar cell module to be replaced is removed from a plurality of solar cell modules constituting the solar cell device according to any one of claims 1 to 4. In the method of exchanging a solar cell device in which a new solar cell module is arranged, each engaging portion of the solar cell module to be exchanged is engaged with each other.
The individual locking members are destroyed, the locking members and the solar cell module to be replaced are removed, two new locking members and a new solar cell module are prepared, and the new solar cell module Is arranged at the position where the solar cell module to be replaced was arranged, and then one engaging portion of one engaging member is engaged with the engaging portion of the new solar cell module, The other engaging portion of the engaging member is engaged with the engaging portion of the adjacent solar cell module located below the engaging portion, and the engaging portion of the adjacent solar cell module is , One of the engaging portions of the other engaging member is engaged, and then the other engaging portion of the engaging member is positioned below the engaging portion of the new solar cell module. It is characterized in that it is engaged with the engaging portion.

According to the seventh aspect of the present invention, when an arbitrary solar cell module is replaced, the engaging engagement is made with the solar cell module to be replaced and the solar cell module adjacent to the solar cell module. Destroy and remove parts,
If the water side end of the solar cell module is fastened with a fixing screw, lift the water side solar cell module slightly to remove the screw, and then to remove the solar cell module, the water side of the solar cell module is removed. Even in the case where the solar cell module is arranged in the above, only the solar cell module can be removed to improve workability and shorten the construction time.

When a new solar cell module is placed after the solar cell module is removed and the water end of the solar cell module is fastened with a fixing screw, the solar cell module on the water side is slightly lifted. Fastening, then prepare two new locking members, and using the locking members, the engaging portion of the solar cell module on the water side and the engaging portion of the solar cell module on the water side, Since it engages with each engaging portion of the new solar cell module, even when the solar cell module is arranged on the water side of the solar cell module, only the solar cell module is installed to improve workability. Can be improved and the construction time can be shortened.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings showing the embodiments thereof. Embodiment 1. 1 is a schematic vertical cross-sectional view showing a state in which a solar cell device according to Embodiment 1 of the present invention is installed on a roof surface, and FIG. 2 is an engagement of solar cell modules constituting the solar cell device. FIG. 44 in the figure
Is a roof surface, and the heat insulating materials 40, 40,
Are arranged side by side in the vertical direction, and the solar cell modules 51 forming the solar cell device are arranged on the respective heat insulating materials 40.

Each solar cell module 51 includes a substrate 11 made of a rectangular steel plate, and a rectangular solar cell panel 2 having a plurality of solar cell elements electrically connected to each other on one surface of the substrate 11. , EVA resin 3 is used for adhesion by vacuum heating and pressure bonding. The solar cell panel 2 is configured, for example, by connecting in series a plurality of solar cell elements formed by laminating a transparent electrode, a power generation layer (a pin configuration of amorphous silicon), and a back electrode on one surface of a transparent substrate. In the integrated solar cell device, the back electrode side of the solar cell device is adhered to the substrate 11. The substrate 11 includes a rising portion 11a that rises in the stacking direction of the solar cell panel 2 by bending one end portion of the steel plate along the one end surface of the solar cell panel 2, and the rising portion 11a.
Is the rising portion 11a so as to be substantially parallel to the one surface.
Has a first engaging portion 111 formed by bending an end portion of the element toward the solar cell panel 2 side.

The substrate 11 is bent along the other end face of the solar cell panel 2 opposite to the one end face thereof in the laminating direction of the solar cell panel 2 by bending the other end of the steel plate.
Then, the bent portion 11c is formed by bending the solar cell panel 2 to the opposite side so as to be substantially parallel to the one surface.
By further bending the bent portion 11c in the stacking direction, the rising portion 1 that stands up in the stacking direction
1b, the rising portion 11b is formed by bending an end portion of the rising portion 11b toward the solar cell panel 2 side so as to be substantially parallel to the one surface, and further bending in a hook shape in a direction opposite to the stacking direction. It has an engaging portion 112.

Further, the substrate 11 is integrally formed on the water side above the rising portion 11b in a state in which the steel plate is bent and is integrally formed on the plane portion and the end portion of the plane portion which are substantially flush with the one surface. The third that is bent in the stacking direction
The engaging portion 113 is provided. Each solar cell module 51 is
On each heat insulating material 40, the first engaging portion 111 is placed under the water,
The engaging part 112 and the third engaging part 113 are arranged in a stepped manner with the water side above.

The locking member 6 is made of a rectangular steel plate having a thickness of about 0.1 mm to 1.6 mm, has a flat surface portion 6c at the central portion, and has the same steel plate at both ends of the flat surface portion 6c. Bending portions 6a and 6b formed by bending the surface side substantially perpendicularly are provided.
The bent portion 6a (bent portion 6b) is arranged so that the end portion of the bent portion 6a (bent portion 6b) faces the flat surface portion 6c in order to engage with the first engaging portion 111 (the second engaging portion 112). It has a first locking portion 61 (second locking portion 62) that is bent toward a hook shape. An engagement tool 41 fastened to the roof surface 44 by a fixing screw 42 is arranged on the water side of each heat insulating material 40. The engagement tool 41 and the third engagement portion 113 are arranged.
Engage with each other to fix the solar cell module 51 to the roof surface 44.

Adjacent solar cell modules 51, 51
Is the first engaging portion 11 of the solar cell module 51 on the water side.
1 and the first locking portion 61 of the locking member 6 are engaged with each other, and the second locking portion 62 of the locking member 6 and the solar cell module 5 on the underwater side.
By engaging with the second engaging portion 112, the vertical movement is prevented and fixed. Note that the solar cell panel is configured by electrically connecting a plurality of solar cell elements made of crystalline silicon such as single crystal silicon or polycrystalline silicon to each other using a copper foil, and applying an adhesive (for example, EVA resin). It may be a solar cell which is used and adhered to one surface of the transparent substrate.

FIG. 3 is an explanatory view for explaining a method of installing the solar cell device. The engaging member 41 has a third engaging portion 11
The new solar cell module 51 is arranged on the heat insulating material 40 located on the water side of the solar cell module 51 fixed to the roof surface 44 by engaging 3 and the third engagement of the solar cell module 51. The portion 113 to the fifth engaging member 1
13 so that the first locking member 111 of the solar cell module 51 on the water side and the second locking member 112 of the solar cell module 51 on the water side overlap with each other. Fixed to the roof surface 44. Alternatively, a new solar cell is provided on the heat insulating material 40 located below the water of the solar cell module 51 fixed on the heat insulating material 40 by engaging the third engaging portion 113 with the engaging tool 41. The module 51 is arranged, the solar cell module 51 on the water side and the heat insulating material 40 are slightly lifted, and the third engaging portion 113 of the new solar cell module 51 is connected to the fifth engaging member 113.
The engaging member 41 corresponding to the first engaging member 41 of the solar cell module 51 on the water side and the second engaging member 112 of the solar cell module 51 on the water side are overlapped with each other. It is fixed to the roof surface 44.

Then, the locking member 6 is prepared, and the first locking portion 61 is directed toward the solar cell module 51 side on the water side, and the second locking portion 62 is directed toward the solar cell module 51 side on the water side. The hook-shaped portion of the first engaging portion 61 of the engaging member 6 is engaged with the first engaging portion 111 of the solar cell module 51 on the side.

Next, the second locking portion 62 of the locking member 6 is
The second engaging portion 112 of the underwater solar cell module 51 is brought into contact with the second engaging portion 112 and the hook-shaped portion of the second engaging portion 112 and the second engaging portion 112.
The second engaging portion 62 is inserted between the second engaging portion 112 and the bent portion 11c until the hook-shaped portion of the engaging portion 62 is engaged with the second engaging portion 62 and the second engaging portion. Stop 62
Push in. At this time, the second engaging portion 62 and the second engaging portion 1
When 12 and 12 are compressed with each other and the second engaging portion 62 is pushed to the inside of the second engaging portion 112, the second engaging portion 62 and the second engaging portion 112 return to their original shape by elasticity. Therefore, the second locking portion 62 and the second engaging portion 112 are engaged with each other. Therefore, the solar cell modules 51, 51 are fixed in the vertical direction.

4 and 5 are explanatory views for explaining a method of replacing the solar cell device. When replacing any solar cell module 51 among the solar cell modules 51, 51, ... Which constitute the solar cell device, the first engaging portion 111 and the second engaging portion 112 of the solar cell module 51 are respectively replaced. Each flat surface portion 6c of the engaged locking members 6 and 6 is cut and broken using, for example, a metal plate cutter (see FIG. 4).
(A)). Then, the locking members 6 and 6 are removed (see FIG.
(B)), 3rd engaging part 1 of the said solar cell module 51
13 is disengaged from the engaging tool 41, and the solar cell module 51 is removed (FIG. 4 (c)).

Next, a new solar cell module 51 is prepared, and the third engaging portion 113 of the solar cell module 51 is engaged with the engaging member 41 to place the solar cell module 51 on the heat insulating material 40. It is arranged (FIG. 5A). Next, the locking members 6 and 6 are prepared, and the first locking portion 61 of each locking member 6 is
The first engaging portion 111 of the solar cell module 51 on the water side and the first engaging portion 111 of the new solar cell module 51.
And (Fig. 5 (b)). Finally, the second locking portion 62 of each locking member 6 is replaced with the new solar cell module 51.
Second engaging portion 112 and the underwater solar cell module 51
By engaging with the second engaging portion 112 of FIG.
(C)) The first engaging portion 111 and the second engaging portion 112 of the new solar cell module 51 are connected to the second engaging portion 112 of the underwater solar cell module 51 and the above water solar cell. The module 51 is engaged with and fixed to the first engaging portion 111.

The solar cell device according to the present embodiment is provided with a rising portion 11a having a first engaging portion 111 and a rising portion 11b having a second engaging portion 112 at both ends thereof. , 51 are arranged in a step, and the first engaging portion 61 to be engaged with the first engaging portion 111.
And the second engaging portion 62 to be engaged with the second engaging portion 112 are engaged with each other by using the engaging members 6 provided at both ends, so that the solar cell modules 51 are adjacent to each other. When moving relative to the module 51, the engaging portion 11
It is possible to prevent the relative movement of the contact portions 1 and 112 by contacting the locking portions 61 and 62.

Further, the solar cell modules 51, 51, ... Can be arranged stepwise from the upper side of the water to the lower side of the water, the degree of freedom of installation work can be increased, and the operator can be already arranged. The existing solar cell modules 51, 51, ... Are used as a scaffold to prevent unnecessary external force from being applied to the solar cell modules 51, 51 ,. Further, in the case of exchanging any solar cell module 51, the locking members 6 engaged with the solar cell module 51 to be exchanged and the adjacent solar cell module 51 are respectively cut, destroyed and removed,
Since only the solar cell module 51 can be removed and only a new solar cell module 51 can be arranged, workability can be improved and construction time can be shortened.

Further, the second engaging portion 112 and the second engaging portion 62.
Since the and are formed in a hook shape, the second engaging portion 112 and the second
The locking portion 62 is elastically engaged with each other, and can be firmly engaged. Further, the locking member has a thickness of 0.1 mm to 1.
Since it is formed using a steel plate of about 6 mm, it can be easily cut and broken using a metal plate cutter. In addition, the substrate 11, the rising portions 11a and 11b, the engaging portion 1
Since 11, 112 and the locking member 6 are each formed of a steel plate, it is possible to reduce the appearance discomfort between the solar cell module 61 and the locking member 6. Also, the second
The second locking portion 6 is provided between the engaging portion 112 and the bent portion 11c.
Since the second engaging portion 112 and the second locking portion 62 are engaged with each other by inserting 2, the second engaging portion 112 is engaged with the second engaging portion 62, for example, during the engaging work.
The locking part 62 prevents the solar cell panel 2 from being damaged by coming into contact with the solar cell panel 2.

Since the elastic engagement is used, the substrate,
A steel plate is suitable as a material for forming the rising portion, the first engaging portion and the second engaging portion, and a material for forming the locking member, but instead of the steel sheet, stainless steel having a thickness of about 0.1 mm to 1.6 mm. A plate or an aluminum plate may be used. Further, instead of integrally providing the rising portion and the second engaging portion in a manner in which a steel plate serving as a substrate is bent, a rising portion and a second engaging portion formed by bending a separate steel plate are provided.
It may be provided by adhering to a substrate.

Embodiment 2. FIG. 6 is a schematic vertical sectional view showing a state in which the solar cell device according to Embodiment 2 of the present invention is installed on a roof surface, and FIG. 7 is an engagement of solar cell modules constituting the solar cell device. FIG. In the figure, reference numeral 44 denotes a roof surface, and the heat insulating materials 4, 4, ... Are arranged side by side on the roof surface 44 in the vertical direction, and the solar cell module 5 constituting the solar cell device is arranged on each heat insulating material 4.
2 are arranged respectively. Each solar cell module 52 is
A rectangular solar cell panel 2 provided with a substrate 12 made of a rectangular steel plate and having a plurality of solar cell elements electrically connected to each other on one surface of the substrate 12 is vacuum-heat-bonded using EVA resin 3. And glued.

The substrate 12 has a rising portion 12a which rises in the stacking direction of the solar cell panel 2 by bending one end portion of the steel plate along the one end surface of the solar cell panel 2, and the rising portion 12a is A first engaging portion 121 formed by bending an end portion of the rising portion 12a toward the solar cell panel 2 side so as to be substantially parallel to the one surface.
Have. In addition, the substrate 12 is a rising portion that rises in the stacking direction by bending the other end of the steel plate in the stacking direction of the solar cell panel 2 along the other end surface facing the one end surface of the solar cell panel 2. 12
b, the rising portion 12b is formed by bending an end portion of the rising portion 12b toward the solar cell panel 2 side so as to be substantially parallel to the one surface, and further bending in a hook shape in a direction opposite to the stacking direction. It has an engaging portion 122. Also, the substrate 12
Is provided on the water side above the rising portion 12b, integrally with the flat surface 123, which is located on substantially the same plane as the one surface in a manner in which the steel plate is bent.

Each solar cell module 52 has a heat insulating material 4
On the upper side, the first engaging portion 121 is on the water side, and on the second engaging portion 122.
Also, the plane portion 123 is placed on the water side and is arranged in a step. The solar cell module 52 is fixed to the roof surface 44 by piercing and fixing the flat surface portion 123 and the heat insulating material 4 with fixing screws 42. The adjacent solar cell modules 52, 52 are the solar cell modules 52 on the water side.
The first engaging portion 121 of the locking member 6 engages with the first engaging portion 61 of the locking member 6, and the second engaging portion 62 of the locking member 6 and the second engaging portion of the solar cell module 52 on the underwater side. Engagement with the mating portion 122 prevents movement in the vertical direction and fixes. The other parts corresponding to those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

When installing the above-mentioned solar cell device, the solar cell module 52 fixed to the roof surface 44 by fastening the flat portion 123 with the fixing screw 42.
A new solar cell module 52 is arranged on the heat insulating material 4 located on the water side of, and the flat portion 123 of the solar cell module 52 is fixed to the roof surface 44 by fastening with the fixing screw 42, and then, The first locking member 121 of the solar cell module 52 on the water side and the second locking member 122 of the solar cell module 52 on the water side are overlapped and fixed to the roof surface 44. Alternatively, by disposing the new solar cell module 52 on the heat insulating material 4 located under the water of the solar cell module 52 fixed to the roof surface 44 by fastening the flat portion 123 with the fixing screw 42, Side solar cell module 52 and the heat insulating material 4 are slightly lifted, and the flat surface portion 123 of the new solar cell module 52.
The roof surface 44 by fastening the
The solar cell module 52 on the water side and the solar cell module 52 on the water side.
Roof surface 44 such that the second locking member 122 of
Fixed to.

Next, the locking member 6 is prepared, and the first locking portion 61 is directed to the solar cell module 52 side on the water side, and the second locking portion 62 is directed to the solar cell module 52 side on the water side. The hook-shaped part of the first locking part 61 of the locking member 6 is engaged with the first engaging part 121 of the solar cell module 52 on the side. Next, the second engaging portion 62 of the engaging member 6 is brought into contact with the second engaging portion 122 of the underwater solar cell module 52, and the hook-like portion of the second engaging portion 122 is formed. The second engaging portion 122 and the solar cell panel 2 are engaged until the hook-shaped portion of the second engaging portion 62 engages with each other.
The second locking portion 62 is pushed in such that the second locking portion 62 is inserted between At this time, the second locking portion 62 and the second
When the engaging portion 122 and the second engaging portion 62 are compressed into each other and the second engaging portion 62 is pushed into the inside of the second engaging portion 122, the second engaging portion 62 and the second engaging portion 122 are elastically restored to their original positions. Since the shape returns to the shape, the second engaging portion 62 and the second engaging portion 122 are engaged with each other. Therefore, the solar cell module 52,
52 is fixed in the vertical direction.

8 and 9 are explanatory views for explaining the method of replacing the solar cell device. When replacing any solar cell module 52 among the solar cell modules 52, 52, ... Constituting the solar cell device, the solar cell module 52 has a first engaging portion 121 and a second engaging portion 122, respectively. Each flat surface portion 6c of the engaged locking members 6 and 6 is cut and broken using, for example, a metal plate cutter (see FIG. 8).
(A)). Then, the locking members 6 and 6 are removed (see FIG.
(B)) The solar cell module 52 located on the water side of the solar cell module 52 and the heat insulating material 4 are slightly lifted to remove the fixing screw 42 from the flat portion 123 (FIG. 8).
(C)).

Next, the solar cell module 52 from which the fixing screw 42 has been removed is removed (FIG. 9A), a new solar cell module 52 is placed on the heat insulating material 4, and the solar cell module 52 Solar cell module 5 located above water
2 and the heat insulating material 4 are slightly lifted, the fixing screw 42 is fastened to the flat portion 123 (FIG. 9B), and finally, the locking members 6 and 6 are prepared, and the first locking member 6 The locking part 61,
The first engaging portion 121 of the solar cell module 52 on the water side and the first engaging portion 121 of the new solar cell module 52.
And engaging the second engaging portion 62 with the second engaging portion 122 of the new solar cell module 52 and the second engaging portion 122 of the underwater solar cell module 52. Thus, the first engagement portion 121 and the second engagement portion 122 of the new solar cell module 52 are connected to the second engagement portion 122 of the underwater solar cell module 52 and the water side solar cell module 52. The first engaging portion 121 is engaged and fixed (FIG. 9C).

The solar cell device of the present embodiment can obtain the same effects as the solar cell device of the first embodiment, and the solar cell module 51 constituting the solar cell device can be obtained.
The rising portion 12b having the second engaging portion 122 of the solar cell module 52 has a simpler shape than the rising portion 11b having the second engaging portion 112, and thus the rising portion 12b becomes the substrate 12. A steel plate can be bent and easily formed.

[0052]

According to the solar cell device of the present invention, the solar cell modules arranged in steps are engaged with each other by using the locking members, so that the solar cell modules are provided in the respective solar cell modules. Unlike a conventional solar cell device in which adjacent solar cell modules are engaged by directly engaging the mating portions, the adjacent solar cells are engaged by engaging the engaging portions with each other via a locking member. Since the solar cell modules are engaged with each other, when the solar cell modules move relative to the adjacent solar cell modules, the engaging portions come into contact with the locking portions to prevent the relative movement. Further, in the case of replacing any solar cell module, by destroying and removing the locking member engaged with the solar cell module to be replaced and the adjacent solar cell module, the above-mentioned water surface of the solar cell module is removed. Even when the solar cell module is arranged on the side, only the solar cell module can be removed and only a new solar cell module can be arranged, improving workability and construction. The time can be shortened.

Further, the solar cell modules having the rising portions having the engaging portions at both ends are engaged with each other by using the engaging members having the engaging portions of the hook shape to form the hook shape. An engaging portion formed by bending the end portion of each rising portion by using an engaging member having one engaging portion formed with a hook shape and the other engaging portion formed in a hook-like shape or a shape other than the hook shape. Are engaged with each other. At this time, the engaging portion of the upper solar cell module is engaged with the hook-shaped engaging portion of the engaging member, and the engaging portion of the lower solar cell module is hook-shaped or other than hook-shaped. Since the formed locking portion is engaged, when the solar cell module moves relative to the adjacent solar cell module, the engaging portion abuts the locking portion to prevent relative movement. You can Further, when the lower solar cell module has a hook-shaped engaging portion, the engaging portion and the hook-shaped engaging portion can be more firmly engaged with each other. .

Further, since the engaging portion and the locking portion can be engaged with each other so as to be engaged with each other, the strength can be improved as compared with the case where the adjacent solar cells are fastened to each other by using screws, for example. Also, when replacing any solar cell module, the solar cell module to be replaced,
Even if the solar cell module is placed on the water side of the solar cell module to be replaced, it is replaced by destroying and removing the locking members that are engaged with the adjacent solar cell modules. Since only the solar cell module to be used can be removed and only a new solar cell module can be arranged, workability can be improved and construction time can be shortened.

Further, since the solar cell modules are engaged with each other by using the locking member which can be easily broken, the locking member is formed by using, for example, a thin metal plate, so that the metal plate cutter is formed. Since it can be easily cut by using, when the arbitrary solar cell module is replaced, the locking member can be easily broken and only the solar cell module can be easily removed.

Further, since the solar cell module is engaged with each other by using the locking member made of a metal plate having a predetermined thickness, for example, a steel plate having a thickness of about 0.1 mm to 1.6 mm. If the locking member is formed using a stainless steel plate or an aluminum plate, it has sufficient strength at the time of engagement and, at the time of breakage, can be easily cut and broken by a metal plate cutter. The strong locking member can be easily broken. Further, when each rising part and engaging part of the solar cell module is made of a steel plate, a stainless plate, or an aluminum plate, it is not necessary to prepare another material to be the locking member, and the solar cell Since it is possible to reduce the appearance discomfort between the module and the locking member, it is possible to improve the appearance of the solar cell device.

According to the method of installing the solar cell device of the present invention, the solar cell modules are arranged in the steps and are engaged with each other by using the locking members, so that the solar cells are moved from the underwater side to the overwater side as in the conventional case. The battery module can be arranged in a step, and when the solar cell module is arranged in a step from the water side to the water side, the solar cell module is arranged and the solar cell is placed on the water side of the solar cell module. When arranging the battery module and fastening the water-side end of the solar cell module with the fixing screw, the water-side solar cell module is slightly lifted and fastened, and then each engaging portion is
Since the engagement is performed by using a locking member having two locking portions that engage with the engaging portion, the conventional solar cell device in which the engaging portions integrally provided in the solar cell module are engaged with each other Unlike the above, the solar cell modules can be sequentially arranged not only from the underwater side to the above-water side but also from the above-water side to the below-water side, and the degree of freedom of installation work can be increased.

When arranging the solar cell modules from the water side to the water side in order, the worker uses the already arranged solar cell module as a scaffold to apply an unnecessary external force to the solar cell module. There is no end.

Further, the solar cell modules each having a rising portion having an engaging portion at both ends thereof are arranged in a step,
By engaging with each other using a locking member having a hook-shaped locking portion, for example, a solar cell module constituting the solar cell device according to any one of the first invention to the fourth invention,
It can be arranged in a stepwise manner from the underwater side to the waterside in the same manner as before, and when the solar cell module is arranged in a stepwise manner from the water side to the water side, the solar cell module is arranged and the solar The solar cell module is arranged on the underwater side of the battery module, and the engagement portion of the waterside solar cell module and the engagement portion of the waterside solar cell module are locked to configure the solar cell device. To engage with the member,
The solar cell modules can be sequentially arranged not only from the underwater side to the above-water side but also from the above-water side to the below-water side, so that the degree of freedom in installation work can be increased.

Further, one of the engaging portions of the engaging member is engaged with the engaging portion of the solar cell module, and then the other engaging portion of the solar cell is disposed under the water of the solar cell module. Since the module engages with the engaging portion of the module, the engagement between the solar cell module and the engaging member is easy, and when both the engaging portion and the engaging portion are hook-shaped, the solar cell is more firmly attached. The module and the locking member can be engaged.

According to the method of replacing the solar cell device of the present invention, the locking member that engages the solar cell modules with each other is destroyed and removed, then the solar cell module to be replaced is removed, and a new member is added. By engaging a new solar cell module with an adjacent solar cell module using a stop member, when exchanging any solar cell module, the solar cell module to be replaced and the solar cell module adjacent to the solar cell module. If the locking members that are engaged with the solar cell module are destroyed and removed, and if the water side end of the solar cell module is fastened with the fixing screw, raise the water side solar cell module slightly. Remove the screw, and then remove the solar cell module, when the solar cell module is placed on the water side of the solar cell module. Even, remove only the solar cell module, improved workability, it is possible to shorten the construction time.

Further, after removing the solar cell module, a new solar cell module is arranged, and when fixing the water side end of the solar cell module with the fixing screw, the water side solar cell module is slightly lifted. Fastening, then prepare two new locking members, and using the locking members, the engaging portion of the solar cell module on the water side and the engaging portion of the solar cell module on the water side, Since it engages with each engaging portion of the new solar cell module, even when the solar cell module is arranged on the water side of the solar cell module, only the solar cell module is installed to improve workability. The present invention has excellent effects such as improvement of the workability and reduction of the construction time.

[Brief description of drawings]

FIG. 1 is a schematic vertical cross-sectional view showing a state in which a solar cell device according to a first embodiment of the present invention is installed on a roof surface.

FIG. 2 is an enlarged view of the vicinity of the engaging portion of the solar cell module that constitutes the solar cell device according to Embodiment 1 of the present invention.

FIG. 3 is an explanatory diagram illustrating a method for installing the solar cell device according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram illustrating a method for replacing the solar cell device according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram illustrating a method for replacing the solar cell device according to the first embodiment of the present invention.

FIG. 6 is a schematic vertical cross-sectional view showing a state in which the solar cell device according to the second embodiment of the present invention is installed on a roof surface.

FIG. 7 is an enlarged view of the vicinity of an engaging portion of a solar cell module that constitutes a solar cell device according to a second embodiment of the present invention.

FIG. 8 is an explanatory diagram illustrating a method for replacing the solar cell device according to the second embodiment of the present invention.

FIG. 9 is an explanatory diagram illustrating a method for replacing the solar cell device according to the second embodiment of the present invention.

FIG. 10 is a schematic vertical sectional view showing a state in which a conventional solar cell device is installed on a roof surface.

FIG. 11 is an enlarged view of the vicinity of an engaging portion of a solar cell module that constitutes a conventional solar cell device.

FIG. 12 is an explanatory diagram illustrating a method for installing a conventional solar cell device.

[Explanation of symbols]

11 board 11a, 11b rising part 111 First engaging portion 112 Second engaging portion 2 solar panel 51 solar cell module 6 locking member 6a, 6b Bent section 61 First locking portion 62 Second locking portion

Claims (7)

[Claims] 1. A solar cell device comprising a plurality of solar cell modules arranged in a step, wherein each solar cell module is provided with an engaging portion at each end in the step direction, and adjacent to each other in the step direction. The engaging portion of the other solar cell module is arranged below the engaging portion of one solar cell module of the matching solar cell module, and the engaging member having the engaging portions at both ends is used. One engagement part is engaged with the engagement part of the solar cell module, and the other engagement part is engaged with the engagement part of the lower solar cell module. apparatus. 2. The solar cell module is formed by stacking solar cell elements on one surface of a rectangular substrate, and a rising portion that rises in a stacking direction of the solar cell elements at both end portions of the substrate, and a rising portion of the rising portion. Each of the engaging members is formed by bending an end portion toward the solar cell element side, and the locking member leaves the flat portion in the central portion of the rectangular flat plate, and the both end portions of the flat plate are in the same direction. The bent portion is formed by bending each of the bent portions, and one or both of the bent portions has a locking portion formed by hooking the end portion toward the flat surface side. Solar cell device. 3. The solar cell device according to claim 1, wherein the locking member is configured to be destructible. 4. The solar cell device according to claim 1, wherein the locking member is made of a steel plate, a stainless plate, or an aluminum plate having a predetermined thickness. 5. A method for installing a solar cell device, comprising arranging a plurality of solar cell modules, each of which has an engaging portion at both ends thereof, in a stepped manner such that the directions of the both ends are in a stepping direction. In the lower side of the engaging portion of one solar cell module of the solar cell modules adjacent in the direction, the engaging portion of the other solar cell module is arranged, using a locking member having a locking portion at each end, Installation of a solar cell device, characterized in that one engagement portion is engaged with the engagement portion of the upper solar cell module, and the other engagement portion is engaged with the engagement portion of the lower solar cell module. Method. 6. The solar cell module, wherein a solar cell element is laminated on one surface of a rectangular substrate, and a rising portion that rises in the laminating direction of the solar cell element is formed on both ends of the substrate, Using a solar cell module each having an engaging portion formed by bending the end portion to the solar cell element side, as the locking member, leaving a flat portion in the center of a rectangular flat plate, A locking member is provided that has both ends bent in the same direction, and one or both of the bent parts uses a locking member having a locking part formed by hooking the ends toward the flat surface side. The method for installing the solar cell device according to claim 5, wherein. 7. A solar cell in which a new solar cell module is arranged by removing the solar cell module to be replaced from among the plurality of solar cell modules constituting the solar cell device according to claim 1. In a method of replacing a battery device, two locking members respectively engaged with respective engaging portions of a solar cell module to be replaced are destroyed to remove the locking member and the solar cell module to be replaced. Then, two new locking members and a new solar cell module are prepared, the new solar cell module is arranged at the position where the solar cell module to be replaced was arranged, and then the new solar cell module is arranged. The one engaging portion of one engaging member is engaged with the engaging portion of the solar cell module, and the other engaging portion of the engaging member is then engaged with the engaging portion of the adjacent solar cell module. Located on the bottom of the section The engaging portions of the adjacent solar cell modules, and one engaging portion of the other engaging member is engaged with the engaging portions of the adjacent solar cell modules, and then the other engaging portion of the engaging member is engaged. A portion of the new solar cell module is engaged with an engaging portion located below the engaging portion of the new solar cell module.