JP5405631B2 - Solar cell module installation structure, solar cell module installation method, and solar power generation system - Google Patents

Description

  The present invention relates to a solar cell module installation structure for installing a solar cell module on a roof or the like, a solar cell module installation method, and a solar power generation system.

  As is well known, a solar power generation system in which a plurality of solar cell modules are arranged side by side on a dormitory or square roof is used. In such a photovoltaic power generation system, it is preferable to increase the installation area of the solar cell module in order to obtain larger photovoltaic power generation power.

  For this reason, in Patent Document 1, a maximum rectangular area is defined on the upper surface of the roof, and a plurality of building material integrated solar cell modules are arranged in the rectangular area in the horizontal direction and the vertical direction. The installation area of the solar cell module is increased by arranging a stationary solar cell module in the triangular region.

  In addition, when installing a solar cell module on the roof, it is necessary to firmly support the solar cell module against wind and snow loads, for example, by an organization such as JET (Electrical Safety and Environment Laboratory). Load-resistant installation standards for solar cell modules are provided. In order to satisfy this standard, the solar cell module is often fixed and supported for each type of module.

  For example, in Patent Document 2, the entire opposite two sides of the solar cell module are pressed by a long support member and a pressing member (see FIG. 1 of Patent Document 2), or both sides of the opposite two sides of the solar cell module, That is, four places are fixedly supported (see FIG. 5 of Patent Document 2).

JP 2011-69161 A JP 2011-26831 A

  By the way, the solar cell module is generally rectangular, and in this case, the upper surface of the roof such as a dormitory or a square is a triangle or a trapezoid, so even if a plurality of solar cell modules are arranged in any arrangement method, The area | region which is not covered with each solar cell module generate | occur | produces, and this becomes one cause which restrict | limits photovoltaic power generation electric power.

  For example, in Patent Document 1, the building material integrated solar cell module and the stationary solar cell module have the same rectangular shape, and the lateral arrangement length of the solar cell module is an integral multiple of the lateral length of the solar cell module. Therefore, when the horizontal arrangement length slightly protrudes from the oblique sides of the roof, it is necessary to shorten the horizontal arrangement length by one solar cell module. A wide empty space that does not contribute to power generation occurred (see FIGS. 4, 5, and 6 of Patent Document 1). Also in Patent Document 2, it is considered that the same problem as Patent Document 1 occurs because solar cell modules having the same rectangular shape are arranged in the horizontal direction and the vertical direction.

  Even if it is necessary to firmly support the solar cell module, if the fixing part of the solar cell module increases unnecessarily, it takes time to install the solar cell module. However, it is preferable to minimize the number and size of the fixing parts of the solar cell module. For example, as shown in FIG. 5 of Patent Document 2, when the solar cell modules having the same rectangular shape are aligned in the horizontal direction and the vertical direction, the fixing parts are commonly used in the adjacent solar cell modules. Does not take much time.

  Therefore, the present invention has been made in view of the above-described conventional problems, and it is possible to further increase the installation area of the solar cell module on the upper surface of a roof such as a dormitory or a square, A solar cell module installation structure, a solar cell module installation method, and a solar power generation system capable of reducing the number of fixing parts of the solar cell module even if the battery modules are not aligned in the vertical and horizontal directions. The purpose is to provide.

  In order to solve the above problems, the solar cell module installation structure of the present invention is a solar cell module in which a plurality of solar cell modules arranged in a horizontal direction are arranged in a vertical direction, and the solar cell modules are installed. The solar cell module, having an installation structure, having two or more types of solar cell modules having different lateral lengths, a rail extending in the horizontal direction, and a fixing member for fixing the solar cell module to the rail. The range of the fixing position of the fixing member is defined, and the vertical ends of at least two solar cell modules adjacent in the vertical direction are not aligned, and the defined fixing in these two solar cell modules is performed. In a place where at least a part of the range of positions is opposed to each other, it is fixed using the common fixing member, and the range of the specified fixed position In the position not facing is fixed using the fixing member with the defined fixed position of one of the solar cell module.

  In such an installation structure of the present invention, a plurality of types of solar cell modules having different lateral lengths are arranged in the lateral direction and the longitudinal direction. In this case, by arranging a plurality of types of solar cell modules in an appropriate number and arranging them in the horizontal direction, the horizontal arrangement lengths of the solar cell modules can be set in various ways. It can be made to fit almost exactly inside the hypotenuses on both sides. Thereby, it becomes possible to narrow the area | region of the roof which is not covered with a solar cell module, and can aim at increase of photovoltaic power generation electric power.

  On the other hand, since the solar cell modules having the same size in the rectangular shape are arranged in the horizontal direction and the vertical direction in the past, when the horizontal arrangement length of each solar cell module protrudes even slightly from the oblique side of the roof, the solar cell It is necessary to shorten the arrangement length in the lateral direction by one module, and it is difficult to narrow the roof area not covered by the solar cell module.

  On the other hand, when a plurality of types of solar cell modules having different lateral lengths are combined and arranged in the horizontal direction, the solar cell modules adjacent in the vertical direction are shifted in the horizontal direction and fixedly supported by the fixing members. The range of the fixed position where each solar cell module is defined is shifted. Even in this case, the specified fixing position of the solar cell module should be fixed, but if each solar cell module is fixed individually one by one, the more the number of solar cell modules, the more the fixing member The number will increase and the number of installation steps will increase.

  However, in the present invention, at least a part of the range of fixed positions defined in the horizontal frames of the adjacent solar cell modules arranged side by side in the vertical direction is confronted with the horizontal frame of each solar cell module. The fixed range of the fixed position is fixedly supported by a common fixing member, and in the place where the specified fixed position range of the horizontal frame of each adjacent solar cell module arranged in the vertical direction does not face, the definition of one solar cell module Since the fixing member is fixed at the fixed position, the increase of the fixing member can be suppressed and the installation man-hour can be reduced while fixing the specified fixing position of the solar cell module. It becomes.

  Therefore, in the present invention, by arranging a plurality of types of solar cell modules having different lateral lengths in an appropriate number and arranging them in the lateral direction, the lateral arrangement length is approximately stored inside the oblique side of the roof, While increasing the photovoltaic power generation, it is possible to suppress an increase in fixing members that occur when such a combination of a plurality of types of solar cell modules is implemented, and to firmly fix the solar cell modules.

  Moreover, in the installation structure of the solar cell module of the present invention, the solar cell module has a support member fixed on the roof, the horizontal beam and the fixing member are fixed on the support member, and fixed on the support member. Further, the fixing member supports and fixes a portion different from the range of the fixing position defined by the solar cell module.

  Thus, when the support member, the horizontal rail, and the fixing member are integrally combined, and the horizontal frame of the solar cell module is fixed and supported by the fixing member, the solar cell module can be more firmly fixed to the roof. . In addition, since the fixing member supports a portion different from the range of the fixing position defined in the horizontal frame of the solar cell module, the degree of freedom of the installation position of the supporting member is increased, and the supporting member is placed at a position such as a rafter on the roof. Can be installed together.

  Furthermore, in the installation structure of the solar cell module of the present invention, the crosspiece and the fixing member are fixed at a place where the support member is not disposed, and the range of the specified fixing position of the solar cell module is fixed by the fixing member. The part is fixedly supported.

  Moreover, in the installation structure of the solar cell module of the present invention, the range of the fixed position where the solar cell module is defined is a range defined by the distance from the end in the vertical direction of the solar cell module.

  In this case, since the fixing position is in a range defined by the distance from the end of the horizontal frame at both ends of the two opposing horizontal frames of the solar cell module, the four locations of the solar cell module are defined. This is a range of positions.

  Next, in the solar cell module installation method of the present invention, a plurality of rows in which a plurality of solar cell modules are arranged in the horizontal direction are arranged in the vertical direction, and each of the solar cell modules is installed. A solar cell module installation method including two or more types of solar cell modules having different lateral lengths, wherein a plurality of solar cell modules are arranged in a horizontal direction on a bar as a first row, When a plurality of solar cell modules are arranged in a horizontal direction on a crosspiece and the solar cell module arranged on the crosspiece is fixed to the crosspiece using a fixing member, the range of the fixing position of the fixing member in the solar cell module is The vertical ends of at least two solar cell modules adjacent to each other between the first row and the second row are not aligned, and these two solar cell modules In a place where at least a part of the range of the specified fixing position in the module is opposed, the common fixing member is used for fixing, and in the place where the specified part is not opposed, the specified one of the solar cell modules is fixed. It fixes using the said fixing member in the fixing location.

  The solar power generation system of the present invention uses the installation structure of the solar cell module of the present invention.

  The solar cell module installation method and solar power generation system of the present invention also have the same operational effects as the solar cell module installation structure of the present invention.

  In the present invention, a plurality of types of solar cell modules having different lateral lengths are combined in an appropriate number and arranged in the lateral direction, so that the lateral arrangement length is substantially accommodated on the inner side of the oblique side of the roof. While increasing the generated power, it is possible to suppress an increase in fixing members that occur when such a combination of a plurality of types of solar cell modules is implemented, and to firmly fix the solar cell modules.

It is a top view which shows one Embodiment of the solar energy power generation system of this invention. It is a top view which shows the regular fixing | fixed site | part of the solar cell module in the solar energy power generation system of FIG. It is a perspective view which shows a solar cell module. It is sectional drawing which expands and shows the frame of a solar cell module. It is a perspective view which shows the support metal fitting in the solar energy power generation system of FIG. It is a perspective view which shows the crosspiece in the solar energy power generation system of FIG. It is a perspective view which shows the fixture in the photovoltaic power generation system of FIG. It is a perspective view which shows the attachment metal fitting in the solar energy power generation system of FIG. It is a disassembled perspective view which shows the fixing structure of a fixing metal fitting, a support metal fitting, a crosspiece, and an attachment metal fitting. It is sectional drawing which shows the fixing structure of FIG. It is sectional drawing which shows the structure which fixed the two solar cell module to the horizontal rail using the fixing metal fitting.

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

  FIG. 1 is a plan view showing an embodiment of the photovoltaic power generation system of the present invention. This solar power generation system 1 supports two types of solar cell modules 2A and 2B arranged on the roof 3 in the horizontal direction X and the vertical direction Y. The solar cell modules 2A and 2B are arranged in a substantially trapezoidal shape in accordance with the trapezoidal shape of the upper surface, and the installation area (sunlight receiving area) of each of the solar cell modules 2A and 2B is increased to increase the solar power generation. In FIG. 1, the vertical direction Y is a direction along the water flow direction A of the roof 1, and the horizontal direction X is a direction orthogonal to the water flow direction A.

  In the solar cell module 2A and the solar cell module 2B, the lengths (vertical widths) ya and yb in the vertical direction Y are the same, but the lengths (horizontal widths) xa and xb in the horizontal direction X are different. For example, the vertical widths ya and yb of the solar cell modules 2A and 2B are set to 992 mm, the horizontal width xa of the solar cell module 2A is set to 1165 mm, and the horizontal width xb of the solar cell module 2B is set to 856 mm.

  Since the vertical widths ya and yb of the solar cell modules 2A and 2B are the same, even if the solar cell modules 2A and 2B are mixed and arranged in a horizontal direction, the vertical widths of the solar cell modules 2A and 2B are Frames extending in the direction are aligned in a straight line.

  Further, the lateral widths xa and xb of the solar cell modules 2A and 2B are different from each other, and the length (856 mm, 1712 mm,...) Of the lateral width xb of the solar cell module 2B is the length of the lateral width xa of the solar cell module 2A. (1165 mm). For this reason, the arrangement | positioning length of the horizontal direction X of each solar cell module 2A, 2B can be variously set by combining each solar cell module 2A, 2B by a suitable number, and arranging in a horizontal direction. Further, since the width xa> width xb> (width xa / 2) is set, the light receiving area of the solar cell module 2B is not significantly narrower than the light receiving area of the solar cell module 2A. There is no significant shortage of 2B generated power, and the number of solar cell modules 2B arranged is not significantly increased.

  Here, the upper surface of the roof 3 has a trapezoidal shape corresponding to the gradient of the roof 3. In accordance with the trapezoidal shape of the upper surface of the roof 3, 11 solar cell modules 2 </ b> A are arranged in the first row at the bottom, and the arrangement length in the lateral direction X is set to about 12.8 m. . In the second row, eight solar cell modules 2A and two solar cell modules 2B are mixed and arranged, and the arrangement length in the lateral direction X is set to about 11.0 m. Further, in the third row, eight solar cell modules 2A are arranged, and the arrangement length in the lateral direction X is set to about 9.3 m. In the fourth row, two solar cell modules 2A and six solar cell modules 2B are mixed and arranged, and the arrangement length in the lateral direction X is set to about 7.5 m.

  In this way, by combining the respective solar cell modules 2A and 2B by an appropriate number, the arrangement length in the lateral direction X is shortened by about 1.8 m from the first to fourth rows, and the respective solar cell modules 2A. 2B are arranged in a generally trapezoidal shape so as to match the trapezoidal shape of the upper surface of the roof 3, and both ends of the first to fourth rows are accommodated approximately inside the oblique sides 3a of the roof 3. Thereby, it becomes possible to narrow the area | region of the upper surface of the roof 3 which is not covered with each solar cell module 2A, 2B, and can aim at the increase in photovoltaic power generation electric power.

  On the other hand, for each of the solar cell modules 2A and 2B, as shown in an enlarged view in FIG. 2, both ends (vertical) are provided in the vicinity of both ends of the two horizontal frames 12a extending in the horizontal direction of the solar cell modules 2A and 2B. A range of 50 mm to 250 mm (150 mm ± 100 mm) from the edge in the direction) is defined as a fixed portion S (specified fixed position range), and the two horizontal frames 12a extending in the horizontal direction The solar cell modules 2A and 2B are to be fixed at the fixing sites S in the vicinity of both ends, that is, at the four fixing sites S.

  When installing a solar cell module, it is necessary to firmly support the solar cell module against wind and snow loads. For example, the load resistance of the solar cell module by an organization such as the Institute for Electrical Safety and Environment (JET) Installation standards are established. In order to satisfy this standard, the fixing part S of the solar cell module is defined for each type of solar cell module, and when installing the solar cell module, the installation manual is often instructed to fix at the fixing part S. .

  However, when two types of solar cell modules 2A and 2B having different lateral lengths are combined and arranged in the horizontal direction as shown in FIG. 1, the solar cell modules 2A or 2B adjacent in the vertical direction are In some cases, the solar cell module 2A or 2B may be displaced in a lateral direction, and the fixed portion S defined in the solar cell module 2A or 2B may also be displaced. Therefore, if the solar cell modules 2A and 2B are individually fixed one by one while observing the above standards, the fixed portion S increases proportionally as the number of the solar cell modules 2A and 2B increases. However, the number of fixing brackets 4 for fixing the fixing part S increases, and it takes time to install the solar cell modules 2A and 2B.

  Therefore, in this embodiment, when at least a part of the fixed portion S defined in the horizontal frame 12a of each solar cell module 2A or 2B adjacent in the vertical direction faces each other, each solar cell module 2A or 2B The fixing part S facing the horizontal frame 12a is fixed and supported by a common and single fixing bracket 4, and the number of fixing brackets 4 is suppressed to the minimum necessary number, thereby reducing the labor for installing each of the solar cell modules 2A and 2B. ing.

  Therefore, in the installation method of the present invention, two types of solar cell modules 2A and 2B having different lateral lengths are combined in an appropriate number and arranged in the lateral direction, so that the lateral arrangement length is set on both sides of the roof 3 While keeping it just inside 3a and aiming at the increase in photovoltaic power generation, the increase in the fixed metal fitting 4 produced when such a combination of two types of solar cell modules 2A and 2B is carried out is minimized. be able to.

  Next, the structure of the solar power generation system 1 of this embodiment will be described in detail. In this photovoltaic power generation system 1, as shown in FIG. 1, a plurality of support brackets 5 are arranged and fixed on the roof 3, and each horizontal rail 6 is bridged and fixed on each support bracket 5. A plurality of fixing brackets 4 are attached and fixed to the crosspieces 6, the solar cell modules 2 A and 2 B are bridged between the horizontal crosspieces 6, and the upper and lower horizontal frames of the solar cell modules 2 A and 2 B are formed by the fixing brackets 4. Fixed support.

  In such a structure, first, the arrangement in the horizontal direction X and the vertical direction Y of each solar cell module 2A, 2B that matches the trapezoidal shape of the upper surface of the roof 3 as described above is determined, and then each horizontal The length of the crosspiece 6 in the horizontal direction X and the position of each horizontal crosspiece 6 in the horizontal direction X and the vertical direction Y are determined. Further, the position of each support bracket 5 in the lateral direction X is determined according to the position of the rafters and the like of the roof 3, and each support bracket 5 is fixed to the rafters and the like.

  FIG. 3 is a perspective view showing the solar cell modules 2A and 2B. As shown in FIG. 3, each of the solar cell modules 2 </ b> A and 2 </ b> B includes a solar cell panel 11 that photoelectrically converts sunlight and a frame 12 that borders and holds the solar cell panel 11.

  For example, the solar cell panel 11 sandwiches a solar cell formed by sequentially laminating a transparent electrode film, a photoelectric conversion layer (semiconductor layer), and a back electrode film between two glass plates, and the end of each glass plate is sandwiched between them. It is sealed. The frame 12 is made of an aluminum material and is formed by assembling two horizontal frames 12a and two vertical frames 12b. Such solar cell modules 2A and 2B with a frame are designed so that a plurality of positions of the frame are held and fixed, and the distance from both ends (vertical end sides) of the horizontal frame 12a is 50 mm to 250 mm. A range of (150 mm ± 100 mm) is defined as a fixed portion S (a range of a specified fixed position).

  FIG. 4 is an enlarged sectional view showing the frame 12 of each solar cell module 2A, 2B. As shown in FIG. 4, the frame 12 includes a wall portion 13, a frame plate 14 provided at the upper end of the wall portion 13, and a bottom plate 15 extending from the lower end of the wall portion 13 to the inside of the frame 12. Yes. A shelf 6 is formed on the inner upper portion of the wall 13, and an insertion groove 17 facing the inside of the frame 12 is formed between the shelf 16 and the frame plate 12, and the end of the solar cell panel 11 is formed in the insertion groove 17. The part is inserted and supported.

  Further, flat ribs 18 are formed below the frame plate 14 and outside the wall portion 13, and further below the rib 118, an L-shaped projection 19 projecting toward the outside of the frame 12 is formed. The outer end of the L-shaped projection 19 is directed upward.

  FIG. 5 is a perspective view showing the support fitting 5. As shown in FIG. 5, the support metal fitting 5 includes a long rectangular main plate 5a, each side wall 5b bent upward at both sides of the main plate 5a, and each top plate 5c bent inward at the upper side of each side wall 5b. Each guide wall 5d is bent downward at the inner side of each top plate 5c. A gap is formed between the guide walls 5d, and this gap is an opening groove 5e. Each stopper 5f is formed near one end of each side plate 5b.

  Such a support metal fitting 5 is fixed to the roof 3 by a known method or structure. For example, the support metal fitting 5 can be fixed by a metal fitting that passes through the roof tile 3 and is connected to a rafter.

  FIG. 6 is a perspective view showing the horizontal rail 6. As shown in FIG. 6, the cross rail 6 is obtained by cutting and bending a single steel plate and plating it, and has a boundary wall 6 a formed by folding the steel plates in the center to overlap each other. . A rail portion 6b having a U-shaped cross section is formed on one side of the boundary wall 6a, and a long hole 6f is formed at the bottom of the rail portion 6b. The rail portion 6b has a width that is slightly wider than the depth of the fixing bracket 4, and the fixing bracket 4 can be disposed inside the rail portion 6b. The side wall 6c of the rail portion 6b is overlapped by folding the steel plates inward, and the upper end of the side wall 6c is a first pedestal portion 6e on which the horizontal frame 12a of each solar cell module 2A, 2B is placed. .

  Further, on the other side of the boundary wall 6a of the horizontal rail 6, a second pedestal portion 6g for mounting the horizontal frame 12a of each solar cell module 2A, 2B is formed. The second pedestal portion 6g is formed in a step shape and is set to the same height as the first pedestal portion 6e. The boundary wall 6a stands perpendicular to the upper surface of the second pedestal portion 6g.

  FIG. 7 is a perspective view showing the fixing bracket 4. As shown in FIG. 7, the fixture 4 has a bottom plate 4a, side walls 4b formed by vertically bending both sides of the bottom plate 4a, and a standing plate 4c formed by vertically bending one side of the bottom plate 4a. .

  The bottom plate 4a is formed with perforations 4d. The depth of the bottom plate 4 a is slightly shorter than the width of the rail portion 6 b of the horizontal rail 6, and the bottom plate 4 a can be disposed inside the rail portion 6 b of the horizontal rail 6.

  Respective receiving portions 4e bent outward are formed at the upper ends of the respective side walls 4b. The height of each receiving portion 4e is the same as or slightly lower than the first and second pedestal portions 6e and 6g of the horizontal beam 6 when the bottom plate 4a of the fixing bracket 4 is placed on the rail portion 6b of the horizontal beam 6. It is set to be.

  At the upper end of the standing plate 4c, a flange portion 4f bent toward the bottom plate 4a and an engagement portion 4g bent toward the opposite side of the flange portion 4f are formed. Two flanges 4f are provided on both sides of the upper end of the upright plate 4c, and one engagement portion 4g is provided in the center of the upper end of the upright plate 4c, so that the two flanges 4f and one engagement portion 4g are alternately arranged. Is arranged. Each contact plate 4h is provided by being bent on both sides of the standing plate 4c.

  FIG. 8 is a perspective view showing an attachment fitting 21 for attaching the fixing fitting 4 to the support fitting 5. As shown in FIG. 8, the mounting bracket 21 is formed with screw holes 21b in the main plate 21a, bent upward on both sides of the main plate 21a to form T-shaped support pieces 21c, and three sides of the main plate 21a. Each sliding portion 21d is formed by folding it in turn (sequentially bending downward, outward and upward).

  Between each support piece 21c, it is made slightly longer than the width | variety of the bottom part of the rail part 6b of the horizontal crosspiece 6, and the bottom part of the rail part 6b of the horizontal crosspiece 6 can be arrange | positioned between each support piece 21c. Has been.

  All of the fixing bracket 4, the support bracket 5, the horizontal rail 6, and the mounting bracket 21 are formed by, for example, punching, cutting, and bending a steel plate and performing a plating process.

  FIG. 9 is an exploded perspective view showing a fixing structure of the fixing bracket 4, the supporting bracket 5, the cross rail 6, and the mounting bracket 21. FIG. 10 is a cross-sectional view showing a fixing structure of the fixing bracket 4, the support bracket 5, the cross rail 6, and the mounting bracket 21.

  Here, as described above, the support fitting 5 is fixed to the roof by an appropriate method or structure. At this time, as shown in FIG. 9, the support fitting 5 is arranged so that the opening groove 5 e of the support fitting 5 is along the water flow direction A, and the stopper 5 f of the support fitting 5 is located downstream of the water flow direction A. Set the orientation. Then, each support piece 21c of the mounting bracket 21 is inserted into the opening groove 5e of the support bracket 5, and the T-shaped head of each support piece 21c is hooked on each top plate 5c. Is inserted between the side wall 5b on both sides of the support fitting 5 and the guide wall 5d, and the attachment fitting 21 is attached to the support fitting 5. As a result, the mounting bracket 21 is supported movably along the opening groove 5 e of the support bracket 5. Further, the stopper 5f of the support bracket 5 prevents the mounting bracket 21 from falling off in the water flow direction A downstream side.

  After that, as shown in FIG. 10, the bottom of the rail portion 6 b of the horizontal rail 6 is sandwiched between the heads of the support pieces 21 c of the mounting bracket 21 protruding on the top plate 5 c of the support metal 5. Is placed on each top plate 5 c of the support bracket 5, and the bottom plate 4 a of the fixing bracket 4 is arranged inside the rail portion 6 b of the horizontal rail 6. Further, the perforation 4d of the bottom plate 4a of the fixing bracket 4 is overlapped with the screw hole 21b of the main plate 21a of the mounting bracket 21 through the elongated hole 6f of the rail portion 6b of the horizontal rail 6, and the bolt 22 is perforated 4d of the fixing bracket 4. Then, the fixing bracket 4 and the horizontal rail 6 are temporarily fixed on the support bracket 5 by screwing into the screw holes 21b of the mounting bracket 21 through the elongated holes 6f of the horizontal rail 6. In this temporarily fixed state, the fixing bracket 4 and the horizontal rail 6 are moved and positioned in the horizontal direction X and the vertical direction Y, and then the bolts 22 are tightened to fix the fixing bracket 4 and the horizontal rail 6 to the support bracket 5. .

  For example, when installing each of the solar cell modules 2A and 2B as shown in FIG. 1, a horizontal rail having a length capable of installing the fixing brackets 4 at both ends of the row in which the solar cell modules 2A and 2B are arranged in combination. 6 is prepared, and a plurality of horizontal rails 6 are arranged at a distance suitable for the vertical width of the solar cell modules 2A and 2B. In the present embodiment, the distance is slightly larger than the vertical width of the solar cell modules 2A and 2B.

  Next, a plurality of fixing brackets 4 for fixing the fixing portion S of the horizontal frame 12a of each solar cell module 2A, 2B are arranged inside the rail portion 6b of each horizontal rail 6 and fixed for each fixing portion S. The metal fitting 4 is positioned in the range of the fixing portion S, the bolt is passed through the perforation 4d of the fixing metal fitting 4 and the long hole 6f of the horizontal beam 6, and a nut is screwed into the bolt and tightened, and the fixing metal fitting 4 is fixed to the horizontal beam 6. To do.

  At this time, when at least a part of the fixing part S of the horizontal frame 12a of each solar cell module 2A or 2B adjacent in the vertical direction Y faces each other, the horizontal frame 12a of these solar cell modules 2A or 2B is fixed. A common and single fixing bracket 4 is assigned to the part S, and the common and single fixing bracket 4 is fixed to the crosspiece 6. Thereby, compared with assigning each fixing bracket 4 to the fixing portion S of the horizontal frame 12a of each solar cell module 2A or 2B, one fixing bracket 4 can be saved.

  Moreover, as shown in FIG.9 and FIG.10, the fixing | fixed part S of the horizontal frame 12a of each solar cell module 2A or 2B which adjoins in the vertical direction Y opposes, and between this opposing fixed part S is shown in FIG.9 and FIG.10. 5, the fixing bracket 4 fixed together with the horizontal rail 6 already exists. The fixing portion S of the horizontal frame 12a of each solar cell module 2A or 2B adjacent to the existing fixing bracket 4 aligned in the vertical direction Y. Assign to. In this case, the two fixing brackets 4 are compared with the case where the fixing bracket 4 is allocated on the support bracket 5 and each fixing bracket 4 is allocated to the fixing portion S of the horizontal frame 12a of each solar cell module 2A or 2B. Can be saved. In addition, you may provide separately the fixing metal fitting 4 on the support metal fitting 5, and the single or two fixing metal fittings 4 which fix the fixing | fixed part S of the horizontal frame 12a of each solar cell module 2A or 2B.

  FIG. 11 is a cross-sectional view showing a structure in which two solar cell modules 2A or 2B arranged with the horizontal rail 6 interposed therebetween are fixed to the horizontal rail 6 by using the fixing bracket 4.

  As shown in FIG. 11, the horizontal frame 12a of one of the solar cell modules 2A or 2B is placed on the first pedestal portion 6e of the horizontal rail 6 and is in contact with each contact plate 4h of the fixing bracket 4. The outer end of the L-shaped projection 19 of the frame 12 a is pushed into the lower side of each flange 4 f of the fixing bracket 4, and the L-shaped projection 19 of the horizontal frame 12 a is inserted into each flange 4 f of the fixing bracket 4. It is caught and locked.

  Further, the horizontal frame 12a of the other solar cell module 2A or 2B is placed on the second pedestal portion 6g of the horizontal beam 6 and is in contact with the boundary wall 6a of the horizontal beam 6 so as to be L-shaped. The outer end portion of the protrusion 19 is pushed into the lower side of the engaging portion 4g of the fixing bracket 4, and the L-shaped protrusion 19 of the horizontal frame 12a is hooked and engaged with the engaging portion 4g of the fixing bracket 4. .

  Therefore, the horizontal frame 12a of one solar cell module 2A or 2B is placed on the first pedestal portion 6e of the horizontal rail 6, and the horizontal frame 12a of one solar cell module is locked to each flange portion 4f of the fixing bracket 4. The horizontal frame 12a of the other solar cell module 2A or 2B is placed on the second pedestal portion 6g of the horizontal beam 6, and the horizontal frame 12a of the other solar cell module is locked to the engaging portion 4g of the fixing bracket 4. The horizontal frame 12a of each solar cell module is fixed with the horizontal rail 6 interposed therebetween.

  In FIG. 1, a plurality of fixing brackets 4 are arranged and fixed on each horizontal rail 6, and each fixing portion S of the upper and lower horizontal frames 12 a of each solar cell module 2 </ b> A, 2 </ b> B is fixed and supported by four fixing brackets 4. doing.

  Next, the installation procedure of the solar power generation system 1 of this embodiment is demonstrated.

  First, on the upper surface of the trapezoidal roof 3 as shown in FIG. 1, the number of solar cell modules 2A, 2B (number of vertical arrangement) is determined, and the solar cell modules arranged in the horizontal direction X for each row. The arrangement length of the solar cell modules 2A and 2B is determined by obtaining a combination of the numbers of the solar cell modules 2A and 2B such that the arrangement length of the rows 2A and 2B is approximately just inside the oblique sides 3a on both sides of the roof 3. Determine the order.

  Then, the length of the first and second horizontal rails 6 for bridging and supporting the solar cell modules 2A, 2B in the first row is set as the arrangement of the solar cell modules 2A, 2B in the first row. The length of the third horizontal beam 6 is set to be approximately the same as the length of the third horizontal beam 6 and the arrangement length of the solar cell modules 2A and 2B in the second row. Is set to be substantially the same as the arrangement length of the solar cell modules 2A and 2B in the third row, and the length of the fifth horizontal rail 6 is set to the arrangement length of the solar cell modules 2A and 2B in the fourth row. Is set to be approximately the same.

  Thereafter, on the upper surface of the roof 3, the arrangement positions of the plurality of support fittings 5 are determined on the respective virtual straight lines on which the first to fifth horizontal rails 6 are arranged. For example, the interval between the support brackets 5 is set according to the interval between the rafters of the roof 3. And each support metal fitting 5 is arrange | positioned in those arrangement positions so as to be orthogonal to a virtual straight line, and each support metal fitting 5 is fixed to the roof 3.

  Subsequently, the first to fifth horizontal rails 6 and the plurality of fixing brackets 4 are placed on the supporting brackets 5 and fixedly supported. At this time, the first horizontal rail 6 is fixed, and the second to fifth horizontal rails 6 are temporarily fixed.

  Further, based on the arrangement order of the solar cell modules 2A and 2B in the first row, the ranges corresponding to the fixed portions S of the solar cell modules 2A and 2B are obtained on the horizontal rails 6 so as to fall within these ranges. The respective fixtures 4 are mounted on the first and second horizontal rails 6 and fixed. Similarly, based on the arrangement order of the solar cell modules 2A and 2B in the second row, the ranges corresponding to the fixed portions S of the solar cell modules 2A and 2B are obtained on the horizontal rails 6 and enter these ranges. In this manner, the respective fixtures 4 are mounted and fixed on the second and third horizontal rails 6, and on the horizontal rails 6 on the basis of the arrangement order of the solar cell modules 2 A and 2 B in the third row. A range corresponding to the fixing portion S of each solar cell module 2A, 2B is obtained, and each fixing bracket 4 is placed and fixed on the third and fourth horizontal rails 6 so as to fall within these ranges, and further Based on the arrangement order of the solar cell modules 2A and 2B in the fourth row, the ranges corresponding to the fixing portions S of the solar cell modules 2A and 2B are obtained on the horizontal rails 6 so that the respective ranges are included in these ranges. Fixing bracket 4 on the 4th and 5th sides Placed on the 6 and fixed.

  At this time, when at least a part of the fixing part S of the horizontal frame 12a of each solar cell module 2A or 2B adjacent in the vertical direction Y faces each other, the fixing part of the horizontal frame 12a of these solar cell modules 2A or 2B A common and single fixture 4 is assigned to S.

  At that time, in solar cell modules 2A or 2B adjacent in the vertical direction Y, in order to know whether or not at least a part of the fixing portion S faces each other, arrangement of members for solar cell modules 2A and 2B and arrangement of the solar cell modules in advance are arranged. Layout software or the like that considers the above may be used. Furthermore, if the fixing part of the fixing bracket 4 is determined by the layout software, the installation workability is further improved.

  Further, the fixing portions S of the horizontal frames 12a of the solar cell modules 2A or 2B adjacent in the vertical direction Y face each other, and are fixed together with the cross rails 6 on the support bracket 5 between the fixing portions S facing each other. When the fixing bracket 4 already exists, the existing fixing bracket 4 is assigned to the fixing portion S of the horizontal frame 12a of each solar cell module 2A or 2B adjacent in the vertical direction Y. In this way, the arrangement position of each fixing bracket 4 is determined, and each fixing bracket 4 is fixed on each horizontal rail 6.

  Next, the temporarily fixed second horizontal beam 6 is moved in the vertical direction Y, and the distance between the already fixed first horizontal beam 6 and the second horizontal beam 6 is set for each sun. The first row extends to the second pedestal portion 6g of the first horizontal rail 6 and the first pedestal portion 6e of the second horizontal rail 6 slightly wider than the vertical widths ya and yb of the battery modules 2A and 2B. Place the upper and lower horizontal frames 12a of each solar cell module 2A or 2B in the eye, push the horizontal frame 12a upstream of the water flow direction A of each solar cell module 2A or 2B, and the water flow direction of each solar cell module 2A or 2B The downstream horizontal frame 12a is locked to the flanges 4f of the fixing bracket 4 of the first horizontal beam 6, and then the second horizontal beam 6 temporarily fixed is moved in the water flow direction A. The horizontal frame 12a on the upstream side in the water flow direction of each solar cell module 2A or 2B is number 2 Engaged with the engagement portion 4g of the fixing fitting 4. Then, the temporarily secured second horizontal rail 6 is fixed on each support fitting 5.

  Similarly, the temporarily fixed n-th (n = 3, 4, 5) -th horizontal beam 6 is moved in the vertical direction Y, and the (n−1) -th horizontal beam 6 already fixed and the first The distance between the n-th horizontal beam 6 is slightly larger than the vertical widths ya and yb of the solar cell modules 2A or B, and the second pedestal portion 6g of the (n-1) th horizontal beam 6 The upper and lower horizontal frames 12a of the solar cell modules 2A or 2B in the k-th (k = 2, 3, 4) row are placed on the first pedestal portion 6e of the nth horizontal rail 6, and each solar cell module 2A is mounted. Alternatively, the upper and lower horizontal frames 12a of 2B are engaged with the flange portions 4f of the fixing bracket 4 of the (n-1) th horizontal rail 6 and the engaging portions 4g of the nth fixing bracket 4. Then, the temporarily fixed n-th cross rail 6 is fixed on each support fitting 5.

  The relationship between the first row and the second row, and the relationship between the k-th row and the (k + 1) -th row are the relationships between adjacent rows (also referred to as the first row and the second row). When the vertical ends of at least two solar cell modules adjacent to each other between adjacent rows are not aligned, and at least a part of the range of fixed positions defined in these two solar cell modules is opposed to each other These two solar cell modules are fixed using a common fixing member.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. It is understood.

DESCRIPTION OF SYMBOLS 1 Solar power generation system 2A, 2B Solar cell module 3 Roof 4 Fixing metal fitting (fixing member)
5 Support bracket (support member)
6 Horizontal pier
11 Solar panel 12 Frame 21 Mounting bracket 22 Bolt

Claims (6)

A plurality of solar cell modules arranged in the horizontal direction are arranged in a plurality of rows in the vertical direction, and the solar cell module installation structure in which each of the solar cell modules is installed,
Two or more types of solar cell modules having different lateral lengths;
A crosspiece extending in the lateral direction;
A fixing member for fixing the solar cell module to the crosspiece,
A range of the fixing position of the fixing member in the solar cell module is defined,
The vertical ends of at least two solar cell modules adjacent in the vertical direction are not aligned, and at least a part of the range of the specified fixed positions in the two solar cell modules is opposite to each other. It is fixed using a fixing member, and is fixed by using the fixing member at the specified fixing position of one solar cell module at a location that does not face the range of the specified fixing position. The installation structure of the solar cell module. The solar cell module installation structure according to claim 1,
Comprising a support member fixed on the roof;
The horizontal beam and the fixing member are fixed on the supporting member, and a portion different from the range of the fixing position defined by the solar cell module is fixedly supported by the fixing member fixed on the supporting member. The installation structure of the solar cell module characterized by this. The solar cell module installation structure according to claim 2,
A solar cell module characterized in that the crosspiece and the fixing member are fixed at a place where the support member is not disposed, and a portion in the range of the specified fixing position of the solar cell module is fixedly supported by the fixing member. Installation structure. It is an installation structure of the solar cell module according to any one of claims 1 to 3,
The solar cell module installation structure characterized in that the range of the fixed position of the solar cell module is a range defined by a distance from an end in the vertical direction of the solar cell module. A plurality of rows of a plurality of solar cell modules arranged in the horizontal direction are arranged in the vertical direction to install each of the solar cell modules, and each of the solar cell modules has two or more types of solar cells having different horizontal lengths. A method of installing a solar cell module including a module,
As a first row, a plurality of solar cell modules are arranged in a horizontal direction on a crosspiece,
As a second row, a plurality of solar cell modules are arranged in a horizontal direction on the crosspiece,
When the solar cell module disposed on the crosspiece is fixed to the crosspiece using the fixing member, a range of the fixing position of the fixing member in the solar cell module is defined, and the first row, the second row, The at least two solar cell modules adjacent in the vertical direction are not aligned in the vertical direction, and at least a part of the range of fixed positions defined in the two solar cell modules is opposed to the common fixed A method for installing a solar cell module, wherein the solar cell module is fixed using a member, and is fixed using the fixing member at the specified fixing location of one solar cell module at a location where the specified location does not face.   The solar power generation system using the installation structure of the solar cell module as described in any one of Claim 1 to 4.

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