JP2005317573A - Solar cell array - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar cell module which enables folding of a structure of the solar cell module, enhances portability and also has improved manipulation efficiency through fixing thereof when the array is developed. <P>SOLUTION: In the solar cell array, four sheets of rectangular or square solar cell modules are allocated in the matrix shape of two rows and two columns. In order to realize folding of this solar cell array, the adjacent ends of the solar cell modules allocated in the position (1, 1) and position (2, 1) of this solar cell array are coupled with a coupling tool. Moreover, the adjacent ends of the solar cell modules allocated in the position (1, 2) and position (2, 2) are also coupled with a coupling tool, and moreover the adjacent ends of the solar cell modules allocated in the position (1, 1) and position (1, 2) or in the position (2, 1) and position (2, 2) of the solar cell array are coupled with a coupling tool. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a solar cell array in which a plurality of rectangular solar cell modules that generate power using sunlight are arranged, and the solar cell array can be folded and deployed using the plurality of solar cell modules. .

  In recent years, with increasing interest in global environmental problems, new energy technology using natural energy has attracted attention. For example, solar cells are used as a power source in research activities in developing countries where large-scale power stations cannot be constructed, developing countries where large power plants cannot be built, remote villages where power transmission is not possible, deserts and undeveloped areas. The independent power system used is active. The independent power supply system is a simple type that supplies the power generated by solar cells directly to loads such as communication devices and pumps, as well as stores the generated power during the day in a storage battery, stabilizes the power supplied to the load, and performs night lighting. There is a storage type that can be used as a load during non-power generation. In such an independent power supply system, a method of placing a solar cell module for converting sunlight into electricity on an installation table made by combining iron or aluminum rails called a gantry is generally used. A state in which a plurality of modules are mounted on a gantry is referred to as a solar cell array.

  FIG. 16 is a cross-sectional view schematically showing the structure of a conventional solar cell module, and FIG. 17 is a perspective view schematically showing the installation structure of the conventional solar cell module.

  Hereinafter, the structure of the solar cell module manufactured by the laminate type manufacturing method will be described as an example. As shown in FIG. 16, the solar cell module 20 is provided with a light transmission plate 24 such as glass or resin on the light receiving surface, and a large number of solar cell elements 23 are provided on the light transmission plate 24 with EVA resin (Ethylene-Vinyl Acetate). A non-light-receiving surface, which is the back surface, is laminated with a weathering film 26 such as a Teflon (R) film, PVF (polyvinyl fluoride), or PET (polyethylene terephthalate). As the solar cell element 23, for example, a single crystal, polycrystal or amorphous material such as a compound semiconductor made of silicon-based semiconductor or gallium arsenide is used, and is electrically connected in series and / or in parallel with each other. Connected to the back surface of the solar cell module 20, that is, on the weather-resistant film 26, a synthetic resin such as ABS resin or an Bonding the junction box 19 which is configured by a Miniumu metal, the output is taken out by the transmission line connected to the terminal for taking out the output power of the solar cell module 20.

  The light transmitting plate 24, the solar cell element 23 and the weather resistant film 26 are attached to a rectangular main body with a frame 21 made of aluminum metal, SUS, or the like sandwiched around each side. The solar cell module 20 is configured to serve as a fixing portion for installation. Moreover, it is useful also for the purpose of the strength improvement which protects the edge part of the solar cell module 20, and raises the whole intensity | strength. The frame body is made of a metal bending material such as iron, stainless steel, or aluminum, or is a resin molded product such as extrusion molding or FRP. The assembly of the frames can be directly coupled with screws or rivets, or a connecting plate It is carried out by being fixed through an auxiliary member such as the above or by adhering to a light transmission plate 24 such as glass or resin. Moreover, it is good also as a structure which inserts the light transmissive board 24 in the frame integrally molded.

  Loads such as lighting and electric motors are operated using the generated power of the solar cell module thus produced. At this time, as shown in FIG. 17, the solar cell module 20 is mounted on an installation frame that is a combination of rails such as iron and aluminum, which is called a frame, and fixed to form a solar power generation device. In order not to be blown or toppled by wind or other wind loads, the base of the pedestal is provided with a heavy object such as a foundation 31 or a concrete block, or an anchor is driven into the installation surface. Fix it. Since the above-mentioned pedestal has a plurality of rails that are fastened and fixed with bolts or the like, such as a bottom rail 32 that passes between the foundations 31 and an upper rail 34 that fixes the solar cell module 20, it requires a large number of assembly steps and is also disassembled for transportation. In order to prevent the solar cell module 20 and rails from colliding with each other and damaging them, it is necessary to strictly pack the package, and since it is the same shape, even a solar cell module that is easy to stack is slippery and easy to collapse. It was necessary to be.

As a means for improving the above-mentioned problem, it is conceivable to connect and fold the solar cell modules. The solar cell array has a bellows-like structure with the folds in one direction, and is fixed on the ground with a wire or the like. Has been proposed (see, for example, Patent Document 1).
JP 2003-318430 A

  However, since the foundation which is heavy objects, such as embedding and a concrete lump, is provided in the base of a mount, once installed, it cannot be moved easily. In addition, it is time and labor to obtain materials and to reconstruct the foundation each time it is moved. In addition, when a heavy foundation is transported together, the transport work becomes difficult and dangerous.

  In addition, even in a structure in which the solar cell modules are connected and folded, since it is a unidirectional folding structure, the solar cell array is not expanded or contracted in directions other than the unfolded direction, and the entire width of the solar cell array increases only in one direction Become. In general, when a horizontally long solar cell array is used, the total length becomes longer in proportion to the output, and a wire or a large pedestal for fixing the developed one is required.

  Furthermore, there is a problem that the installation space of the solar cell array becomes horizontally long according to the output, and it becomes difficult to secure the installation space.

  Also, since the ratio in the short side direction is very small, the strength against falling in the short side direction is low when trying to install it on the gantry, and equipment to prevent overturning against external forces such as wind is necessary. Become.

  Therefore, the present invention has been made in view of the above-mentioned circumstances, and the purpose thereof is to improve transportability by collecting them in a small size, and when used in a stationary type, a rectangular shape in which the ratio between the short side and the long side is close. Alternatively, it is to provide a solar cell array that is square-shaped and has a small installation width and is strong against external force after installation.

  In order to solve the above problems, a solar cell array of the present invention is a solar cell array in which four rectangular or square solar cell modules are arranged in a matrix of 2 rows and 2 columns, In order to fold the battery array, adjacent end portions of the solar cell modules arranged at the position (1, 1) and the position (2, 1) of the solar cell array are connected by a connector, and further the position (1 , 2) and adjacent end portions of the solar cell modules arranged at position (2, 2) are connected by a connector, and the position (1, 1) and position (1, 2) or position of this solar cell array Adjacent ends of the solar cell modules arranged at (2, 1) and position (2, 2) are connected by a connector.

  In addition, another solar cell array of the present invention includes m × n (m, n are natural numbers, m ≧ 2, n ≧ 3) rectangular or square solar cell modules arranged in a matrix of m rows and n columns. The solar cell array is arranged, and in order to fold the solar cell array, the adjacent end portions of the solar cell modules arranged in the column direction of the solar cell array are respectively connected by a connector, a and b are natural numbers satisfying 1 ≦ a ≦ (n−1) / 2 and 1 ≦ b ≦ n / 2, respectively, and are arranged at positions (1, 2a + 1) and (1, 2a) of this solar cell array. Adjacent ends of solar cell modules connected by a connector, and adjacent ends of solar cell modules arranged at position (m, 2b) and position (m, 2b-1) are connected by a connector. It is characterized by that.

  Further, another solar cell array of the present invention is provided with a plurality of holes penetrating these solar cell modules from the side surface of the solar cell modules arranged in a matrix, and inserting rod-like support members into these holes, The unfolded state of the solar cell modules arranged in a matrix is maintained.

  Further, another solar cell array of the present invention is provided with a plurality of fixing belts for fixing the rod-like support member to the outer periphery, and the rod-like support members are fixed to the outer periphery using these fixing belts, The unfolded state of the solar cell module arranged in the above is maintained.

  Furthermore, another solar cell array of the present invention is provided with a plurality of groove portions for fitting rod-like support members on the outer peripheral portion, and the rod-like support members are fitted into these groove portions, and the solar cell modules arranged in the matrix form The unfolded state is maintained.

  According to the solar cell array of the present invention, it is a solar cell array in which four rectangular or square solar cell modules are arranged in a matrix of 2 rows and 2 columns, so that the solar cell array can be folded. Therefore, the solar cell modules adjacent to each other at positions (1, 1) and (2, 1) of the solar cell array are connected to each other with a connector, and the positions (1, 2) and ( 2, 2) the adjacent end portions of the solar cell modules are connected by a connector, and the position (1,1) and position (1,2) or position (2,1) of the solar cell array By connecting adjacent solar cell modules located at position (2, 2) with a connector, when the solar cell module having a quadruple light receiving area when folded is folded, the length of the sides in both the vertical and horizontal directions is folded. Is 1/2, Thereby improving the transmission properties. Further, the lengths of both the vertical and horizontal sides are doubled at the time of deployment, so that when they are installed on the gantry, the lengths of the sides are doubled to be stable against external force.

  According to another solar cell array of the present invention, m × n (m and n are natural numbers, m ≧ 2, n ≧ 3) rectangular or square solar cell modules are arranged in an m × n matrix. The solar cell arrays are arranged in a shape, and adjacent end portions of the solar cell modules arranged in the column direction of the solar cell array are connected by a connector so that the solar cell array can be folded. And a and b are natural numbers satisfying 1 ≦ a ≦ (n−1) / 2 and 1 ≦ b ≦ n / 2, respectively, and the positions (1, 2a + 1) and (1, 2a) of this solar cell array Adjacent ends of the solar cell modules to be arranged are connected with a connector, and adjacent ends of the solar cell modules arranged at the position (m, 2b) and the position (m, 2b-1) are connected with the connector. Mxn when expanded by connecting A solar cell module having a double light receiving area can be improved by 1 / m in the horizontal direction and 1 / n in the vertical direction. Furthermore, when unfolding, the length of the side is m times in the horizontal direction and n times in the vertical direction. In addition, since the other solar cell modules do not come between the folded solar cell modules, the connector has the shortest length, and at the same time, it eliminates the area that does not contribute to power generation when deployed, and at the same time increases the strength because it is the shortest. it can.

  Further, according to another solar cell array of the present invention, a plurality of holes penetrating these solar cell modules are provided from the side surfaces of the solar cell modules arranged in a matrix, and rod-like support members are inserted into these holes. Since the developed state of the solar cell modules arranged in a matrix is maintained, the developed solar cell array composed of a plurality of solar cell modules can be easily handled as one solar cell module.

  Further, according to another solar cell array of the present invention, a plurality of fixing belts for fixing the rod-shaped support member to the outer peripheral portion are provided, and the rod-shaped support member is fixed to the outer peripheral portion using these fixing belts, By maintaining the unfolded state of the solar cell modules arranged in a matrix, the solar cell module can be fixed. In addition, since the diameter of the rod can be increased or decreased by using a fixed belt, the rod can be prepared at the site where the solar cell module is used, and the number of members that must be transported must be reduced. I can do it.

  According to another solar cell array of the present invention, a plurality of groove portions for fitting rod-like support members are provided on the outer peripheral portion, and the rod-like support members are fitted into these groove portions, and the solar cells arranged in the matrix form. By maintaining the expanded state of the module, the solar cell modules expanded in a matrix can be fixed in the expanded state.

  6A and 6B are diagrams schematically explaining a cross section of a folding structure in the solar cell array according to the present invention, wherein FIG. 6A is a plan view and FIG. 6B is a partial cross-sectional view. .

  As shown in FIGS. 6A and 6B, the solar cell module 11 according to the present invention is provided with a light transmission plate 12 such as glass or resin on the light receiving surface, and a large number of solar cell elements are provided on the light transmission plate 12. 1 is laminated with a sealing material 13 made of EVA resin (Ethylene-Vinyl Acetate) or the like, and a non-light-receiving surface on the back surface thereof is a Teflon (R) film, PVF (polyvinyl fluoride), PET (polyethylene terephthalate), or the like. The solar cell element 1 is made of, for example, a single crystal, a polycrystalline or an amorphous material such as a compound semiconductor made of silicon-based semiconductor or gallium arsenide, The ABS is electrically connected to each other in series and / or in parallel, on the back surface of the solar cell module 11, that is, on the weather resistant film 14. A junction box 16 made of synthetic resin such as fat or aluminum metal is bonded, and the output is taken out by a transmission line connected to a terminal for taking out the output power of the solar cell module 11. The solar cell module is connected to another solar cell module by a connector 17 (or 18) attached to the end face of the portion 15.

  In addition, although the connector 17 (or 18) in a figure is arrange | positioned at the electric power generation surface (front surface) side of a solar cell module, there exist some which are arrange | positioned at the back surface of a solar cell module.

  Hereinafter, a configuration method of the solar cell array of the present invention when the structure is folded using an arbitrary number of solar cell modules will be described using algebra.

  FIG. 1 is an arrangement diagram schematically explaining the arrangement of solar cell modules in the solar cell array according to the present invention, and FIG. 2 shows the arrangement of the solar cell modules and the first connecting members in the column direction in the solar cell array according to the present invention. It is the arrangement figure explaining typically.

  As shown in FIG. 1, a rectangular or square solar cell module is a solar cell array arranged in a matrix of m rows and n columns (m and n are natural numbers, m ≧ 2, n ≧ 3). First, as shown in FIG. 2, the solar cell modules adjacent in the column direction are connected by the first connector 17 (17a, 17b). At this time, the light-receiving surface of the solar cell module is defined as the surface, and the first connector 17a between the solar cell modules (1, 1) and (2, 1) is connected to the solar cell modules (1, 1) and (2, 1 ) On the front side of the solar cell modules (2, 1) and (3, 1), the first connector 17b between the following solar cell modules (2, 1) and (3, 1) The first connector 17a between the solar cell modules (3, 1) and (4, 1) on the surface side of the next solar cell modules (3, 1) and (4, 1) and so on. The connecting fittings 17 (17a, 17b) are alternately arranged on the front surface side and the back surface side of the solar cell module.

  FIG. 3 is a layout diagram schematically illustrating a part of the layout of the solar cell module and the second connector in the row direction in the solar cell array according to the present invention.

  Next, as shown in FIG. 3, the second connector 18a is arranged in the row direction. At this time, the solar cell modules (1, 2a) and (1, 2a + 1) are connected by the connector. To be arranged.

Here, a is a natural number, and the range of a is 1 ≦ 2a (1)
2a + 1 ≦ n (2)
When the above formulas (1) and (2) are arranged, a is 1 ≦ a ≦ (n−1) / 2 (3)
All natural numbers that satisfy are used.

  FIG. 4 is a layout diagram schematically illustrating a state in which the layout of the second connectors in the row direction of the solar cell modules in the solar cell array according to the present invention is completed.

  Next, as shown in FIG. 4, the second connector 18b is arranged in the row direction. At this time, the solar cell modules (m, 2b-1) and (m, 2b) are connected to each other. Arrange to be connected.

Here, b is a natural number, and the range of b is 1 ≦ 2b−1 (4)
2b ≦ n (5)
And b, b is 1 ≦ b ≦ n / 2 (6)
All natural numbers that satisfy are used.

  As described above, the solar cell modules (1, 2) and (1, 3) are the second connector 18a, and the solar cell modules (m, 1) and (m, 2) are the second connector 18b. Are connected according to the same rule up to the nth column.

  FIG. 5 is a layout diagram schematically illustrating the connected state of the solar cell arrays according to the present invention, and FIG. 14 schematically illustrates the operation of folding the first column of the solar cell array according to the present invention into the second column. FIG. 15 is a schematic diagram schematically illustrating the operation of folding the second row of the solar cell array according to the present invention into the third row.

  As described above, the connection of all the solar cell modules of m rows and n columns is completed, and the solar cell array 10 is completed as shown in FIG. The outline of the law in which the connection of the solar cell modules by the connectors 17 (17a, 17b) and 18 (18a, 18b) at this time is indicated by arrows.

  In addition, the arrangement | positioning rule of the front and back of the connector of a row direction is divided into four types according to the arrangement state of the connector of a column direction as follows.

  Case (i) When the number of sheets in the row direction is an even number and the surface of the solar cell modules of (1, 1) and (2, 1) are matched, the metal fitting 18b connecting the first row and the second row Are arranged such that the back surfaces are aligned with each other, and the metal fitting 18a connecting the second row and the third row is disposed so that the back surfaces are aligned with each other. In the same manner, each time one row is moved, the connecting tools are alternately arranged.

  Case (ii) When the number in the row direction is an even number and the back surfaces of the solar cell modules of (1, 1) and (2, 1) are matched, the metal fitting 18b connecting the first row and the second row Are arranged so that the surfaces meet each other, and the metal fitting 18a connecting the second row and the third row is arranged so that the surfaces meet each other. In the same manner, each time one row is moved, the connecting tools are alternately arranged.

  Case (iii) When the number of sheets in the row direction is an odd number and the surfaces of the solar cell modules of (1, 1) and (2, 1) are matched to each other, the metal fitting 18b connecting the first row and the second row Are arranged so that the front surfaces are aligned with each other, and the metal fitting 18a connecting the second row and the third row is disposed so that the back surfaces are aligned with each other. In the same manner, each time one row is moved, the connecting tools are alternately arranged.

  Case (iv) When the number in the row direction is an odd number and the back surfaces of the solar cell modules of (1, 1) and (2, 1) are matched, the metal fitting 18b connecting the first row and the second row Are arranged so that the back surfaces are aligned with each other, and the metal fitting 18a connecting the second row and the third row is disposed so that the front surfaces are aligned with each other. In the same manner, each time one row is moved, the connecting tools are alternately arranged.

  As described above, the first row of the solar cell array is folded to the second row, the second row is folded to the third row, the first row is folded to the second row side, Furthermore, it is possible to fold all the solar cell modules into one by folding the second row to the nth row in the same manner. The operation of folding the first row into the second row is shown in FIG. 14, and the operation of folding the second row into the third row is shown in FIG.

  Hereinafter, with respect to the state of actually folding the solar cell array, taking as an example the case of a solar cell array composed of four, six, and nine solar cell modules, based on the drawings schematically showing the embodiments according to the present invention. This will be described in detail.

  FIG. 7 is a perspective view showing a process of folding a solar cell array composed of four solar cell modules in two rows and two columns according to the present invention, and FIG. 8 is a solar cell composed of six solar cell modules in two rows and three columns. FIG. 9 is a perspective view of a process of folding a solar cell array composed of 9 rows of solar cell modules in 3 rows and 3 columns.

  As shown in FIG. 7, the solar cell array of the present invention is composed of four surfaces of the solar cell module, and has a structure in which the surfaces are connected by a connector having a hinge function. Here, the connecting tool has a hinge function, so that it can be folded.

  The four surfaces of the solar cell array are respectively applied to the matrix to be (1,1) surface, (2,1) surface, (1,2) surface, (2,2) surface, and the light receiving surface of the solar cell element is As the surface, the folding order is shown below. First, from the state where the solar cell array as shown in FIG. 7A is developed, the surfaces of the solar cell modules (1, 2) and (2, 2) are aligned as shown in FIG. 7B. Next, the surfaces of the solar cell modules (1, 1) and (2, 1) are aligned with each other as shown in FIG. 7C, and finally the solar cell modules (1, 1) and ( 1 and 2), the folding is completed as shown in FIG.

  In the solar cell array of the present invention shown in FIG. 8, an example is shown in which m rows and n columns are each composed of 6 rows of solar cell modules of 2 rows and 3 columns where m = 2 and n = 3. First, from the state where the solar cell array is expanded as shown in FIG. 8A, the back surfaces of the solar cell modules (1, 1) and (2, 1) are aligned with each other as shown in FIG. 8B. The back surfaces of the solar cell module (1, 3) surface and the (2, 3) surface are similarly folded. Next, the solar cell modules (1, 3) and (1, 2) are folded so that the surfaces of the solar cell modules (1, 3) and (1, 2) are aligned with each other as shown in FIG. 8C. Similarly, as shown in FIG. ) And (2, 2) are brought together. Finally, by folding the back surfaces of the solar cell modules (1, 2) and (2, 2) as shown in FIG. 2 (e), the folding is completed as shown in FIG. 2 (f).

  FIG. 9 shows an example in which the solar cell array of the present invention is composed of 9-plane solar cell modules with 3 rows and 3 columns each having m rows and n columns of m = 3 and n = 3. First, from the state where the solar cell array is developed as shown in FIG. 9A, the surfaces of the solar cell modules (1, 1) and (2, 1) are brought together as shown in FIG. 9B. At this time, the back surfaces of the solar cell modules (3, 3) and (3, 2) on the opposite side are similarly folded. Next, as shown in FIG. 9C, the solar cell modules (2, 1) and (3, 1) are folded so that the back surfaces of the solar cell modules (2, 1) are aligned with each other. At this time, the opposite solar cell modules (1, 3) and (2, The surfaces of 3) are similarly folded. Next, as shown in FIG. 9D, the surfaces of the solar cell modules (3, 1) and (3, 2) are matched. Further, as shown in FIG. 9 (e), the back surfaces of the solar cell modules (3, 2) and (2, 2) are aligned with each other. Match. Finally, as shown in FIG. 3 (f), the back surfaces of the solar cell modules (1, 2) and (1, 3) are brought together to complete the folding as shown in FIG. 3 (g).

  FIG. 10 is a perspective view schematically showing a fixing method in which holes are provided in the side surface of the solar cell array and a rod for fixing the unfolded state of the solar cell module is penetrated in the solar cell array according to the present invention. The solar cell array concerning this invention WHEREIN: The perspective view which shows typically the method of providing the strip | belt in the outer peripheral side surface of a solar cell array, and attaching the stick | rod for fixing the expansion | deployment state of a solar cell module, FIG. In the solar cell array, a perspective view schematically showing a method for providing a groove on the outer periphery of the solar cell array and fitting a rod for fixing the unfolded state of the solar cell module, FIG. 13 is a solar cell array according to the present invention. FIG. 2 is a perspective view schematically showing a state in which a stopper mechanism for fixing the unfolded state is provided on the frame portion of the solar cell module.

  As shown in FIG. 10, the solar cell array 10 a is provided with insertion holes 2 penetrating between the solar cell modules on the side surface of the solar cell module, and rod-like support members 3 (3 a and 3 b) are inserted into the insertion holes 2. By doing so, the solar cell array 10a is not only a connector that connects the solar cell modules (1, 1) to (3, 3), but also a metal material such as aluminum, iron, and stainless steel, or a resin material such as polycarbonate. It can be supported by a strong support member made of wood or the like, and can be prevented from being damaged by wind load due to wind or deflection due to its own weight. Moreover, since it is only necessary to insert a rod-shaped support member, the structure is simple and the workability is good.

  Further, as shown in FIG. 11, the solar cell array 10b is provided with a fixing belt 4 on the outer peripheral side surface of the solar cell array, and the support member 3 (3a, 3c) is fixed to the outer periphery of the solar cell array, so It is firmly fixed. The fixing belt 4 can be an easily removable resin belt such as a magic tape or a string, and if the fastening diameter can be changed according to the diameter of the rod to be used, Substitution is possible even if it is not a dedicated support member, and versatility increases. It can also be fixed directly to a solar cell stand or the like.

  As shown in FIG. 12, the solar cell array 10c is provided with a fixing groove 5 at the end of the solar cell array, and is fitted with rod-like support members 3 (3a, 3c) for fixing the unfolded state. Thus, the unfolded state of the solar cell array is firmly fixed.

  Moreover, as shown in FIG. 13, the solar cell array 10d is provided with a stopper 6 that slides along a groove provided on the side surface of the solar cell array. The unfolded state is firmly fixed by inserting the stopper 6 into the base plate. In the figure, the stopper 6a between the solar cell modules (3, 1) and (3, 2) is in the fixed state, and the stopper 6b between the solar cell modules (3, 2) and (3, 3) is in the unlocked state. Show.

  Although the present embodiment has been described based on the case where the number of solar cell modules is 4, 6, or 9, it is possible to implement more than this, for example, a solar cell composed of 25 rows in 5 rows and 5 columns. It goes without saying that the same effect can be obtained even in the case of a battery array.

It is an arrangement drawing which explains typically arrangement of a solar cell module in a solar cell array concerning the present invention. FIG. 3 is a layout diagram schematically illustrating the layout of solar cell modules and first coupling tools in the column direction in the solar cell array according to the present invention. It is an arrangement drawing which explains typically a part of arrangement of a solar cell module in a solar cell array concerning the present invention, and the 2nd connector of a row direction. It is an arrangement figure explaining typically a mode that arrangement of the 2nd connector of the row direction of a solar cell module in a solar cell array concerning the present invention was completed. FIG. 3 is a layout diagram schematically illustrating a connected state of solar cell arrays according to the present invention. (A), (b) is a figure which illustrates typically the cross section of a folding structure in the solar cell array which concerns on this invention, (a) is a top view, (b) is a partial cross section figure. (A)-(e) is a perspective view explaining typically the process folded in the solar cell array which concerns on this invention with the solar cell module which consists of a 4 cell solar cell module of 2 rows 2 columns. (A)-(f) is a perspective view which illustrates typically the process folded by the solar cell module which consists of a 6-plane solar cell module of 2 rows 3 columns in the solar cell array which concerns on this invention. (A)-(g) is a perspective view which illustrates typically the process folded by the solar cell module which consists of a solar cell module of 9 surfaces of 3 rows 3 columns in the solar cell array which concerns on this invention. In the solar cell array concerning this invention, it is a perspective view which shows typically the fixing method which provides a hole in the side surface of a solar cell array, and penetrates the rod for fixing the expansion | deployment state of a solar cell module. In the solar cell array concerning this invention, it is a perspective view which shows typically the method of providing the strip | belt in the outer peripheral side surface of a solar cell array, and attaching the stick | rod for fixing the expansion | deployment state of a solar cell module. In the solar cell array concerning this invention, it is a perspective view which shows typically the method of providing a groove | channel in the outer peripheral part of a solar cell array, and inserting the stick | rod for fixing the expansion | deployment state of a solar cell module. In the solar cell array concerning this invention, it is a perspective view which shows typically a mode that the stopper mechanism for fixing an expansion | deployment state to the frame part of the solar cell module was provided. FIG. 5 is a schematic explanatory diagram schematically illustrating an operation of folding the first row of the solar cell array according to the present invention into the second row. It is a schematic diagram schematically explaining the operation of folding the second row of the solar cell array according to the present invention to the third row. It is the partial cross section figure which showed the structure of the conventional solar cell module typically. It is the perspective view which showed typically the installation structure of the conventional solar cell module.

Explanation of symbols

1: Solar cell element 2: Insertion hole 3, 3a-3c: Support member 5: Fixing groove 6: Stopper 10, 10a-10d: Solar cell array 12: Light transmission plate 13: Sealing material 14: Weather resistant film 15: Frame part 16: Junction boxes 17, 17a, 17b: First connector 18, 18a, 18b: Second connector 19: Junction box 20: Solar cell module 21: Frame body 23: Solar cell element 24: Light transmission plate 25 : Sealing material 26: Weather resistant film 31: Foundation 32: Bottom rail 34: Upper rail

Claims (5)

A solar cell array in which four rectangular or square solar cell modules are arranged in a matrix of 2 rows and 2 columns, and the position of the solar cell array (in order to fold the solar cell array ( 1, 1) and adjacent end portions of solar cell modules arranged at position (2,1) are connected by a connector, and further solar cells arranged at position (1,2) and position (2,2) The adjacent ends of the modules are connected by a connector, and are arranged at the position (1, 1) and position (1, 2) or the position (2, 1) and position (2, 2) of the solar cell array. The solar cell array characterized by connecting the adjacent edge part of a solar cell module with the connection tool. A solar cell array in which m × n (m, n are natural numbers, m ≧ 2, n ≧ 3) rectangular or square solar cell modules are arranged in a matrix of m rows and n columns, In order to fold the solar cell array, adjacent end portions of the solar cell modules arranged in the column direction of the solar cell array are respectively connected by a connector, and a and b are each 1 ≦ a ≦ (n− 1) / 2, a natural number satisfying 1 ≦ b ≦ n / 2, and the adjacent end portions of the solar cell modules arranged at the position (1, 2a + 1) and the position (1, 2a) of the solar cell array are connected. A solar cell array, wherein the adjacent end portions of the solar cell modules arranged at positions (m, 2b) and (m, 2b-1) are connected by a connector. A plurality of holes penetrating these solar cell modules are provided from the side surfaces of the solar cell modules arranged in a matrix form, rod-like support members are inserted into these holes, and the solar cell modules arranged in the matrix form are developed. The solar cell array according to claim 1 or 2, wherein the state is maintained. A plurality of fixing belts for fixing the rod-shaped support members to the outer peripheral portion are provided, and the rod-shaped support members are fixed to the outer peripheral portion using these fixing belts, and the unfolded state of the solar cell modules arranged in the matrix is maintained. The solar cell array according to claim 1, wherein the solar cell array is configured as described above. A plurality of groove portions for fitting rod-like support members are provided on the outer periphery, and the rod-like support members are fitted into these groove portions to maintain the unfolded state of the solar cell modules arranged in the matrix. The solar cell array according to claim 1 or 2.

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