JP5948965B2 - Solar cell integrated building materials - Google Patents

Description

  The present invention relates to a solar cell integrated building material, and more particularly to a building material such as a roof material or a wall material in which solar cells are incorporated in a base material in which irregularities appear repeatedly.

  Currently, slate tiles are mainly used for residential roofs, and waterproof concrete is used for building roofs, but corrugated and folded building materials that are cheap and easy to install are used for the roofs, eaves, and carports of town factories. It is used a lot. In addition, corrugated and folded wall materials are often used for the walls of town factories, warehouses, and carports. The corrugated sheet or folded sheet building material has a feature that it can obtain a sufficient strength regardless of whether it is a thin and light building material.

  A building material incorporating a solar cell called BIPV (Building Integrated Photovoltaics) is also attracting attention. Thin-film solar cells are used for this BIPV, but thin-film solar cells are characterized by their thinness and lightness. Therefore, even if thin-film solar cells are incorporated, they maintain the characteristics of building materials that are light and strong. can do.

  Regarding solar cells incorporated in such building materials, for example, in Patent Document 1 below, in a corrugated solar roof material having a solar cell layer, a silicone layer is formed in at least a concave portion on the surface, and the top of the silicone layer is The titanium dioxide-containing film is formed on the surface, and the contact angle of the titanium dioxide-containing film with water is 10 ° or less, or the titanium dioxide-containing film is formed at least on the concave portion of the surface. The structure which made the contact angle of 10 degrees or less is disclosed.

  Moreover, the following patent document 2 discloses a triangular wave solar cell panel in which triangular ridges are arranged in parallel. In this patent document 2, by using a triangular mountain-shaped ridge, it is possible to increase the solar cell area per unit installation area and to increase the amount of power generation as compared with a flat plate type solar cell, and a suitable angle with respect to the solar direction. Thus, it is described that the power generation efficiency can be improved, and that the power generation amount of photovoltaic power generation can be averaged in the morning and noon by mixing the triangular directions vertically and horizontally.

2001-59314 2001-217448

  Since conventional solar cells place importance on increasing the amount of power generation, solar cells are mounted in as wide an area as possible on building materials. For example, in the above-mentioned patent document, solar cells are arranged on the entire surface of building materials. Structure is adopted.

  However, the corrugated sheet or folded sheet building material has a problem in that dust, dust, and the like tend to accumulate in the recesses due to its structure. With respect to this problem, in Patent Document 1 described above, by forming a titanium dioxide-containing film on the surface of the building material and setting the contact angle with water to 10 ° or less, dust or dust accumulated in the recesses is rained. To make it easier to flow. However, even if this method is used, if the accumulated dust or dust is left for a long period of time or if a small amount of rain falls, the dust or dust adheres to the surface of the building material and prevents the transmission of sunlight. This significantly reduces the amount of power generated by the solar cell.

  In addition, the corrugated sheet or folded sheet building material has a problem in that the concave portion is likely to be a shadow of the convex portion, and the power generation amount of the solar cell is reduced. In order to solve this problem, for example, a method is conceivable in which sunlight is reflected by an uneven inclined portion and led to a solar battery cell installed in the recessed portion. However, even with this method, depending on the direction of the sun, it is not possible to efficiently reflect sunlight, and even if sunlight is reflected, as described above, the recesses tend to accumulate dust, dust, etc. Again, a decrease in the amount of power generated by the solar cell cannot be reliably prevented.

  Moreover, the said problem arises similarly with respect to the arbitrary building materials which can install not only a roofing material but a solar cell.

  The present invention has been made in view of the above problems, and the main object of the present invention is to incorporate a plurality of solar cells into a corrugated or folded plate building material in which irregularities appear repeatedly. The object is to provide a solar cell-integrated building material capable of improving the amount of power generation per area (cost-effectiveness).

In order to achieve the above object, the present invention is a solar cell-integrated building material in which a plurality of solar cells are incorporated in a base material in which convex portions and concave portions extending in a certain direction are repeatedly formed. The solar cells are arranged in a convex region including the top of the convex portion, the adjacent solar cells are electrically connected in a concave region between the convex regions, and the solar cells are They are arranged asymmetrically around the top of the convex part .

  According to the solar cell-integrated building material of the present invention, in a structure in which a plurality of solar cells are incorporated in a corrugated or folded plate building material in which irregularities appear repeatedly, the power generation amount (cost-effectiveness) per area of the solar cell is reduced. Can be improved.

  The reason is that when a plurality of solar cells are incorporated in a base material in which convex portions and concave portions extending in a certain direction are repeatedly formed, solar cells are placed in each convex region including the apex of the convex portions. It is because the structure which arrange | positions and electrically connects the adjacent photovoltaic cell in the recessed area | region between convex areas is employ | adopted.

  In this way, solar cells are preferentially placed on convex parts suitable for photovoltaic power generation, avoiding concave parts that are disadvantageous for photovoltaic power generation, such as dust and dust that tend to collect, dirt easily adhere, and shadows. By doing so, it is possible to perform solar power generation with improved cost effectiveness.

It is a figure which shows the conventional corrugated-shaped building material (roof material). It is a figure which shows the example of arrangement | positioning of the photovoltaic cell in the case of incorporating a photovoltaic cell in the conventional corrugated-shaped building material (roofing material). It is a figure which shows the relationship between the arrangement position of a photovoltaic cell, and cost effectiveness. It is the perspective view, sectional drawing, and partial enlarged view which show the structure of the solar cell integrated building material which concerns on one Example of this invention. It is a perspective view which shows the structure (asymmetric arrangement | positioning structure) of the solar cell integrated building material which concerns on one Example of this invention. It is sectional drawing which shows the relationship between the installation place of the solar cell integrated building material which concerns on one Example of this invention, and arrangement | positioning of a photovoltaic cell. It is the top view and sectional drawing which show the structure (structure with a position adjustment function) of the solar cell integrated building material which concerns on one Example of this invention. It is sectional drawing and the elements on larger scale which show the structure (structure with a position adjustment function and a position adjustment reference | standard) of the solar cell integrated building material which concerns on one Example of this invention. It is a perspective view which shows the example of arrangement | positioning of the photovoltaic cell in the solar cell integrated building material which concerns on one Example of this invention.

  As shown in the background art, conventional solar cells place importance on increasing the amount of power generation per size of building materials such as roofing materials, and adopt a structure in which solar cells are mounted in the widest possible area on building materials. However, since solar cells are expensive, in order to spread solar power generation, it is required to use solar cells as efficiently as possible. In other words, it is desirable to use a structure that can produce as much power as possible using as few solar cells as possible. For that purpose, it is effective to arrange the solar cells around the region where the power can be generated most efficiently among the building materials such as roofing materials.

  Moreover, the solar cell module has a plurality of solar cells mounted in the module, and by connecting the solar cells in series or in parallel, the voltage value and the current value are increased, and a practical voltage and current are obtained. I am trying to do it. Therefore, although the connection region between the solar cells is essential for the solar cell module, this connection region is a region in which the wiring member that connects the solar cells is arranged, and it does not contribute to power generation. When incorporating solar cells, it is desirable to arrange the solar cells in a region advantageous for solar power generation and to arrange the wiring member in a region disadvantageous for solar power generation.

  Therefore, in one embodiment of the present invention, in a structure in which a plurality of solar cells are incorporated in a corrugated plate-shaped or folded plate-shaped base material in which convex portions and concave portions extending in a certain direction are repeatedly formed, In each convex region including the top of the convex portion, solar cells are arranged along the concavo-convex shape, and the adjacent solar cells are connected in the concave region between the convex regions. Enable efficient solar power generation without compromising the good features of building materials (features such as low cost and the ability to silence rain).

  In addition, according to the location and orientation of the building material, the solar cells can be arranged asymmetrically around the top of the convex portion (that is, unevenly shifted to the left or right). To enable more efficient solar power generation. Furthermore, when using a plurality of building materials in combination, the solar cell is not disposed in the convex region of the region where the plurality of building materials are overlapped, and the corrugated plate-shaped or folded plate-shaped building material has a good feature ( It is possible to provide a solar cell-integrated building material that does not impair features such as easy construction.

  In order to describe the above-described embodiment of the present invention in more detail, a solar cell integrated building material according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a view showing the structure of a conventional corrugated building material (roof material). FIG. 2 is a diagram showing an arrangement example of solar cells in the case where solar cells are incorporated in a conventional corrugated plate-shaped building material (roof material), and FIG. It is a figure which shows the relationship with an effect. Moreover, FIG. 4 is a figure which shows the basic structure of the solar cell integrated building material of a present Example, and FIG. 5 thru | or FIG. 9 is a figure which shows the deformation | transformation structure of the solar cell integrated building material of a present Example.

  In addition, in this specification, a solar cell power generation device is comprised by the control part which processes the electric power output from a solar cell module and a solar cell module, and a solar cell module is comprised by the several photovoltaic cell. Shall. Moreover, this invention has the characteristics in the arrangement | positioning of the photovoltaic cell which comprises a photovoltaic module, The structure which outputs electric power from a photovoltaic module, the structure of photovoltaic cell itself, etc. are not specifically limited. For example, in a solar cell, an organic dye is sandwiched between transparent films, and the dye that hits the light emits electrons to become cations, and a current is generated by repeatedly receiving electrons from another electrode. Although there are dye-sensitized solar cells, solar cells having an arbitrary structure that can be formed in accordance with the shape of the building material can be used.

  First, the corrugated roof material often used for the roofs, eaves, and carports of town factories will be described. The corrugated roof material (corrugated slate) is made of an inexpensive plastic material such as vinyl chloride or polycarbonate, or a metal material such as iron. In order to achieve both lightness and strength, the corrugated sheet roof material is formed by periodically curving a thin member and repeatedly having convex portions 11 and concave portions 12 extending in a certain direction as shown in FIG. It is processed as follows.

  When the corrugated roof material 10 having such a structure is installed outdoors, the concave portion 12 is more likely to collect dust or dust than the convex portion 11. If a large amount of rain falls, most of the collected garbage and dust will be washed away downstream. Dust sticks to the surface of building materials and becomes dirty.

  In addition, since the sun moves from east to west during the day, when the roofing material 10 is installed facing south, sunlight is poured obliquely onto the corrugated roofing material 10 in the morning and evening. At that time, due to the structure of the corrugated roof material 10, sunlight is poured into the convex portion 11 from morning to evening, but the concave portion 12 is partially or entirely shaded.

  FIG. 2 shows a state in which flat solar cells 20 are installed on the corrugated roof material 10 having such characteristics. When solar cells 20 are installed on both the convex portion and the concave portion of the corrugated roof material 10, the amount of power generation as a solar cell module can be increased. However, since the solar cells 20 are expensive, they are cost-effective. This will cause a decrease in (power generation relative to the introduction cost).

  Therefore, in consideration of cost-effectiveness, when installing the solar cells 20 on the corrugated sheet roofing material 10, is it generally disposed on the corrugated sheet convex portion 11 as shown in FIG. As shown in FIG. 2 (b), it is considered that the structure is arranged in any one of the concave portions 12 of the corrugated sheet, but the concave portion 12 of the roof material 10 of the corrugated sheet is easily contaminated as described above. The solar battery cell 20 cannot efficiently generate power because it tends to become a shadow.

  Therefore, when installing the solar battery cell 20 on the corrugated roofing material 10, it is necessary to make a judgment from the viewpoint of cost-effectiveness instead of simply determining the amount of power generation. It can be said that installing 20 is a good idea. Thus, the ratio of the electric power generation amount with respect to the area of a solar cell can be raised by arrange | positioning the photovoltaic cell 20 centering on the convex part 11 advantageous to an electric power generation.

  Moreover, when installing the photovoltaic cell 20 in the roofing material 10 of a corrugated sheet, it is effective to install and modularize the photovoltaic cell 20 repeatedly according to an unevenness | corrugation. It is electrically connected with an electric wire or the like. Here, since the space | interval between the photovoltaic cells 20 and an electrical connection area | region are areas which do not contribute to photovoltaic power generation, it can be said that it is effective to perform the connection between photovoltaic cells 20 in the recessed part 12 disadvantageous to power generation. .

  FIG. 3 is a diagram comparing the arrangement of solar cells 20 and cost effectiveness. As shown in FIG. 3C, when the solar battery cell 20 is installed on the corrugated roofing material 10 in which irregularities appear repeatedly, as shown in FIG. Cost effectiveness is lowest in terms of shadows and shadows. Moreover, as shown in FIG.3 (b), when the photovoltaic cell 20 is arrange | positioned in both the recessed part 12 and the convex part 11, although the electric power generation amount increases with the photovoltaic cell 20 of the convex part 11, cost doubles. Moreover, since the space | interval of the photovoltaic cells 20 becomes narrow, the electrical connection of the photovoltaic cells 20 becomes difficult. On the other hand, as shown to the left figure of Fig.3 (a), when the photovoltaic cell 20 is arrange | positioned centering on the convex part 11, cost can be restrained, maintaining electric power generation amount, and cost effectiveness is made high. Can do. Moreover, since the electrical connection between the photovoltaic cells 20 can be performed by the recesses 12 that are disadvantageous for solar power generation, the attachment work can be facilitated without causing a decrease in the amount of power generation. Moreover, also when arrange | positioning the photovoltaic cell 20 to the roof material of a folded board like the right figure of Fig.3 (a), cost effectiveness can be heightened similarly and attachment work can be made easy.

  Therefore, in this embodiment, a building material incorporating the solar battery cell 20 based on the structure of FIG. In the following description, the case where the solar battery cell 20 is incorporated into the corrugated sheet or the folded sheet roof material will be described. However, the same applies to the case where the photovoltaic cell 20 is incorporated into the corrugated sheet or the folded sheet wall material. In the following, the shape of the corrugated sheet or the folded sheet will be described as an example of the shape of the building material, but the same applies to any shape in which convex portions and concave portions extending in a certain direction repeatedly appear. Can do.

  FIG. 4 is a perspective view showing a solar cell integrated building material 1 (roof material) according to the present embodiment in which solar cells 20 are incorporated along a convex portion 11 of a corrugated plate (or folded plate) roof material, and a cross section. It is a figure and a partial enlarged view. The solar cell integrated building material 1 according to the present embodiment includes a base roof material 10a serving as a structure and a plurality of solar cells 20 incorporated in the base roof material 10a.

  The base roof material 10a which becomes a structure is processed into a corrugated plate (or folded plate) shape using a material such as vinyl chloride, polycarbonate or iron. In the figure, the convex portion 11 and the concave portion 12 have the same width, but the width of the convex portion 11 may be wider or narrower than the concave portion 12. In the figure, the convex portion 11 and the concave portion 12 are repeated with the same width, but the width of the convex portion 11 and / or the concave portion 12 is changed gradually or stepwise to repeat the convex portion 11 and the concave portion 12. It is good also as a structure.

  And the photovoltaic cell 20 is affixed on each area | region centering on the convex part 11 with the adhesive agent 31, and is being fixed. The region centering on the convex portion 11 is not limited to the configuration shown in the figure, and includes the top portion of the convex portion 11 (the uppermost portion in the case of a corrugated plate, the center portion of the upper surface in the case of a folded plate). What is necessary is just the area | region isolate | separated by the recessed part 12 of both sides. Further, the fixing method is not limited to the adhesive, and for example, a double-sided tape having high weather resistance may be used.

  The solar battery cell 20 is a flexible film-like thin film solar battery. The film-like thin film solar cell is commercialized as a CIGS (compound composed of four elements of copper, indium, gallium, and selenium) and an amorphous silicon solar cell. In addition to the structure having flexibility (flexibility) like a film, even a solar battery cell using thin-film glass as a sealing material, If the same shape is used, the solar cell-integrated building material 1 can be realized which is brought into close contact along the unevenness of the base roof material 10a and does not impair the original corrugated (or folded) shape of the roof material.

  In addition, the solar cells 20 incorporated in the respective regions centered on the convex portion 11 are electrically connected to the adjacent solar cells 20 at the end portion on the concave portion 12 side or outside the solar cell module. Electrical wiring for output to is connected.

  Thus, in the structure of the present embodiment in which the solar cells 20 are incorporated along the corrugated shape of the corrugated plate or the folded plate, the same installation method as the conventional building material (superposition, Maintaining the effect of adjusting the size and fixing to the main building) and the effect of the shape of the building material (such as guiding the rainwater in the desired direction by the projections and receiving the impact of falling rain to mitigate rain noise) can do. Therefore, it can be said that the structure of this example is superior to the structure in which solar cells are installed in a flat plate shape on a corrugated or folded roof material.

  In FIG. 4, as an example of the solar cell integrated building material 1 of the present embodiment, the case where the solar cells 20 are arranged at symmetrical positions around the top of the convex portion 11 has been described. Since the installation location and the installation direction are various, it is also possible to adjust the arrangement of the solar cells 20 so that solar power can be generated more efficiently.

  For example, in a region where the sun climbs south, as shown in FIG. 5A, a case is assumed where roofing materials are provided around a building (in the figure, three locations on the west side, the south side, and the east side). In this case, if the entire surface of the roofing material is covered with solar cells, a high power generation amount can be obtained even in solar cells installed on the roofing material facing in any direction. The battery cell 20 is more expensive than the material used as the base of the roofing material, and the cost effectiveness is deteriorated. For this reason, the solar cells 20 are arranged only in the region centered on the convex portion. At that time, the arrangement of the solar cells 20 is adjusted in accordance with the installation location and direction of the roofing material, and the direction is determined. Even in the solar cell 20 installed on the roof material, the high cost-effectiveness is obtained.

  Specifically, the corrugated or folded roof material installed on the west-facing roof is irradiated with sunlight from the upper right when the sun is in the south. Therefore, when solar cells 20 having the same surface area are mounted, as shown in FIG. 5 (b), it is more likely that the solar cells 20 are mounted on the south side (right side in the figure) with respect to the top of the convex portion. It becomes easy to receive from, and the amount of power generation increases.

  Further, the corrugated or folded plate-shaped roof material installed on the south-facing roof is irradiated with sunlight from obliquely above in the front direction when the sun is in the south. Therefore, when the solar cells 20 having the same surface area are mounted, as shown in FIG. 5 (c), it is easier to receive sunlight from the front when the solar cells 20 are mounted evenly with respect to the top of the convex portion. The amount increases.

  Moreover, the corrugated or folded plate-shaped roof material installed on the east-facing roof is irradiated with sunlight from the upper left when facing the south. Therefore, when solar cells 20 having the same surface area are mounted, as shown in FIG. 5 (d), it is more likely that the solar cells 20 are mounted southward (leftward in the figure) with respect to the top of the convex portion. It becomes easy to receive from, and the amount of power generation increases.

  Therefore, by preparing solar cells 20 with the corrugated plate or folded plate-shaped convex portion shifted to the left side, those shifted to the right side, those that are evenly arranged left and right, Optimal power generation can be obtained for the three installation directions. Furthermore, by preparing multiple types of solar cell-integrated building materials 1 that are subdivided to the left and right, an optimal amount of power generation is obtained for various installation directions such as south-southeast, east-southeast, west-southwest, and south-southwest. be able to.

  Thus, the solar cell-integrated building material 1 in which the arrangement of the solar cells 20 is symmetric with respect to the top of the convex portion in advance and the solar cell-integrated building material 1 in which the solar cell 20 is asymmetric are prepared in advance. By selecting the most suitable solar cell-integrated building material 1, the amount of power generation can be increased. However, in this method, the manufacturer needs to prepare a plurality of types of solar cell integrated building materials 1 and product management becomes complicated. Also. In rare cases, when the direction of the solar cell-integrated building material 1 is changed, such as when the roof used in the east direction is moved to the roof in the south direction, the optimum power generation amount cannot be obtained. There is also. Furthermore, since the movement trajectory of the sun changes according to the season, an optimal power generation amount cannot be obtained unless the solar cells 20 are arranged at the optimal position at that time.

  In order to solve this problem, the solar cell integrated building material 1 can be added with a function that allows the position of the solar battery cell 20 to be adjusted left and right around the top of the convex portion. This makes it possible to reduce the manufacturer's product lineup and simplify the management, and also eliminates the trouble for the installer to select the building materials to be ordered according to the installation orientation, and the season changes. You can always get the optimal amount of power.

  For example, when the solar battery cell 20 is incorporated in a roof material facing south, as shown in FIG. 6 (a), the solar light is maximized so that the total amount of sunlight moving from morning to afternoon and from east to west is maximized. The position of the battery cell 20 is adjusted to a left and right uniform position with respect to the top of the convex portion. In addition, when the solar battery cell 20 is incorporated in the southeast facing roof material, the solar battery cell 20 is arranged on the south side (left side in the figure) with respect to the top of the convex portion as shown in FIG. 6B. Adjust the position so that In addition, when the solar battery cell 20 is incorporated into the roof material facing southwest, the solar battery cell 20 is arranged on the south side (right side in the figure) with respect to the top of the convex portion as shown in FIG. Adjust the position so that

  FIG. 7 shows an example of a structure in which the solar cell integrated building material 1 of this embodiment is provided with a position adjustment function that allows the position of the solar battery cell 20 to move in the left-right direction with respect to the top of the convex portion. Yes. The solar cell integrated building material 1 has a double structure of a front shell and a back shell, and has a structure in which a solar battery cell 20 is sandwiched between two shells. Moreover, the adjacent photovoltaic cell 20 is connected by the cell connection parts 32, such as a wire, and pulls position adjustment parts 33, such as a wire provided in the photovoltaic cell 20 arrange | positioned at the at least one edge part of building materials. By this, the photovoltaic cell 20 can slide inside sequentially and can adjust the position with respect to a convex part. Further, if the solar battery cell 20 has a certain level of strength, the position of the solar battery cell 20 can be adjusted even by the operation of pushing the position adjusting unit 33.

  In addition, it is preferable to form the cell connection part 32 with the material which can supply electricity, such as a copper wire, so that the photovoltaic cells 20 can be electrically connected in series or in parallel. In FIG. 7, the position of the solar battery cell 20 is adjusted by an operation of pulling (or pushing in) the position adjustment unit 33. However, the solar battery cell 20 is connected with a switch or the like using an electric motor (not shown). It can also be automatically slid.

  Moreover, when adjusting the position of the photovoltaic cell 20, it is difficult to understand how much the photovoltaic cell 20 should be slid. In such a case, in addition to the position adjustment function described above, a scale for easily identifying the optimum adjustment position can be provided. For example, at the construction site of the roof material, since the direction of the roof can be known using a compass (direction magnet), a map, etc., the optimal position of the solar battery cell 20 is calculated for the installation direction of the roof material, and the position Establish a standard such as a scale to understand

  FIG. 8 is an example of this, and a scale such as a mark (a triangular mark in the figure) indicating the optimum adjustment position for the installation direction of the roof material is provided on the fixed roof material (shell) side. In this configuration, when installing in the south direction, the end of the solar cell 20 is aligned with the center triangular mark, and when installing in the west direction, the end of the solar cell 20 is aligned with the right triangular mark, When installing in the direction, the edge part of the photovoltaic cell 20 is aligned with the left triangle mark. Further, in the case of directions such as south-southeast and east-southeast, the end of the solar battery cell 20 is aligned with a position in the middle of the three triangular marks, or the marks are finely cut.

  As described above, by providing the position adjustment function of the solar battery cell 20 and the scale for notifying the optimal position of the solar battery cell 20 in the installation direction of the roofing material, the optimum power generation can be easily performed at the construction site. The position of the solar battery cell 20 can be adjusted.

  In the above description, the case where the position of the solar battery cell 20 is manually adjusted has been described. For example, the irradiation direction of sunlight is determined using a timer, a light sensor, or the like, and the irradiation direction of sunlight at that time. The solar battery cell 20 can be automatically slid using an electric motor (not shown) so that the solar battery cell 20 is calculated at the calculated position and the solar battery cell 20 is arranged at the calculated position. .

  As described above, the independent solar cell integrated building material 1 has been described. However, when building materials are installed on a wide roof or wall, a plurality of building materials are combined. For example, in the case of a corrugated or folded roof material, as shown in FIG. 9 (a), it is not necessary to perform waterproofing treatment such as packing on the seam simply by overlapping the roof materials. In the case of corrugated sheet or folded sheet roofing material, generally, if it is constructed with two or half concavo-convex or three concavo-convex halves, rain will not leak from the seam even in rain that blows. The feature that it can be easily connected and constructed is also required for a corrugated or folded plate-like roof material incorporating the solar battery cell 20. However, if there is a solar battery cell 20 on the lower side when superimposed, the solar battery cell 20 cannot generate power, and the expensive solar battery cell 20 is wasted.

  Another reason why corrugated or folded plate-shaped roofing materials are often used is that the mounting holes for fixing brackets for connecting to the purlin during construction can be freely adjusted at the construction site according to the position of the framework of the main building. It can be provided. The feature that the mounting hole can be installed at a free position in accordance with the framework of the main building is also required for the corrugated or folded plate-shaped roof material in which the solar cells 20 are incorporated. Usually, the installation hole for the mounting bracket is provided on a convex portion of the corrugated plate or the folded plate-shaped roof material through which rain does not flow. However, if the solar battery cell 20 is provided on the convex side that is advantageous for power generation, it is not possible to make a construction hole. Moreover, if a hole is accidentally made in the solar battery cell 20, the solar battery cell 20 is damaged, and the expensive solar battery cell 20 is wasted.

  Therefore, in the solar cell-integrated building material 1 of the present embodiment, when the building materials are overlapped and constructed, the solar cells 20 are not mounted on the overlapping portion as shown in FIG. 9B. Thereby, the solar cell integrated building material 1 of the corrugated sheet or the folded-plate shape which has the function which can prevent a rain leak by simple construction can be provided.

  As described above, when a plurality of solar cells 20 are incorporated in a building material such as a corrugated sheet or folded sheet roof material or wall material in which convex portions 11 and concave portions 12 extending in a certain direction are repeatedly formed. In addition, by arranging the solar cells 20 in the convex region including the top of the convex portion and connecting the adjacent solar cells 20 in the concave region between the convex regions, the power generation amount caused by dirt and shadows can be reduced. Can be prevented. In addition, by installing a position adjustment mechanism for adjusting the position of the solar cell 20 with respect to the top of the convex portion or a scale serving as a reference for adjustment according to the installation location and direction of the building material, the installation location and direction of the building material Regardless of this, it is possible to obtain an optimal power generation amount. When a plurality of building materials are used in combination, solar power generation is efficiently performed without impairing the characteristics of the corrugated sheet or folded sheet building material by not arranging the solar cells 20 in the overlapping portion. be able to.

  In addition, although the said Example demonstrated the roof material and the wall material, this invention is not limited to the said Example, It can apply similarly with respect to the arbitrary building materials from which an unevenness | corrugation appears repeatedly. it can.

  INDUSTRIAL APPLICABILITY The present invention can be used for building materials such as corrugated plates and folded plates in which irregularities appear repeatedly, particularly roof materials and wall materials.

DESCRIPTION OF SYMBOLS 1 Solar cell integrated building material 10 Roof material of corrugated sheet 10a Base roof material 11 Convex part 12 Concave part 20 Solar cell 30 Electric wiring 31 Adhesive 32 Cell connection part 33 Position adjustment part

Claims (6)

A solar cell integrated building material in which a plurality of solar cells are incorporated in a base material formed by repeatedly forming convex portions and concave portions extending in a certain direction,
In the convex region including the top of the convex portion, the solar cells are arranged, and the adjacent solar cells are electrically connected in a concave region between the convex regions,
The photovoltaic cell-integrated building material, wherein the photovoltaic cells are arranged asymmetrically around the top of the convex portion. A solar cell integrated building material in which a plurality of solar cells are incorporated in a base material formed by repeatedly forming convex portions and concave portions extending in a certain direction,
In the convex region including the top of the convex portion, the solar cells are arranged, and the adjacent solar cells are electrically connected in a concave region between the convex regions,
The solar battery cell is sandwiched between a front material and a back material, and is configured to be able to move through a gap between the front material and the back material,
Adjacent solar cells are connected to each other by a connecting portion,
The solar cell integrated building material , wherein the solar cell arranged at the end is configured to be movable in the arrangement direction of the solar cell by a position adjusting unit . 3. The solar cell integrated building material according to claim 2 , wherein a part of the position adjusting unit protrudes from a gap between the front material and the back material . The said photovoltaic cell is arrange | positioned along the uneven | corrugated shape of the said base material, The solar cell integrated building material as described in any one of Claim 1 thru | or 3 characterized by the above-mentioned. The plurality of solar cell integrated building materials are used by overlapping a part of the unevenness,
The solar cell-integrated building material according to any one of claims 1 to 4 , wherein the solar cell is not disposed in the convex region of the region where the solar cell-integrated building material is overlaid. .   The solar cell-integrated building material according to any one of claims 1 to 5, wherein the base material is a corrugated or folded plate roof material or wall material.

Images