JP2018038187A - Solar cell module fixing structure and solar power generation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell module fixing structure which achieves improvement of strength of the fixing structure and achieves high workability without increasing the number of members and processes during construction.SOLUTION: A fixing structure fixes a solar cell module 2 onto a frame 3. The frame 3 includes: support pillars 11 erected on an installation surface 10; and a first support member 12 and a second support member 13 respectively fixed to the support pillars 11. The first support member 12 and the second support member 13 are disposed in directions intersecting with each other. The second support member 13 is placed on the first support member 12, and the solar cell module 2 is fixedly placed on the second support member 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a solar cell module fixing structure and a photovoltaic power generation system using the fixing structure.

  Conventionally, various fixing structures for installing and fixing a photovoltaic power generation panel (solar cell module) on a gantry have been proposed in industrial photovoltaic power generation systems (see, for example, Patent Document 1).

  In the panel holding structure described in Patent Document 1 (hereinafter referred to as a panel fixing structure), a plurality of channel members having different installation heights extending in the lateral direction are fixed to a base member or a support provided on an installation surface, A beam member is placed in an inclined posture on a plurality of channel members, and a photovoltaic power generation panel is placed and fixed on the beam member. Further, the channel material is formed such that a steel strip-shaped plate material is bent to form a trapezoidal cross section.

JP 2014-5654 A

  In such a panel fixing structure, the load of the photovoltaic power generation panel and the beam material is received only by the upper surface of the channel material. In addition, a large load is applied to the panel fixing structure due to the wind blown from the upper surface of the installed photovoltaic power generation panel or the weight of snow accumulated on the panel.

  However, in the panel fixing structure of Patent Document 1, one end of the upper surface of the channel material is formed by being bent from a trapezoidal upper or lower base that forms a vertical surface, and the other end is an opening. Therefore, the upper surface of the channel material is supported only on one end side. Therefore, when a large load is applied, there is a problem that the upper surface of the channel material is deformed and the holding structure may be damaged.

  Further, in the panel fixing structure described in Patent Document 1, a plurality of square plate-like gusset plates are screwed to the opening of the channel material to increase the rigidity of the channel material and improve the strength of the panel fixing structure. ing. However, in this structure, it is necessary to prepare a gusset plate separately, and there is a problem that the member cost increases. Moreover, since the process of fixing a gusset plate to a channel material increases, there also existed a problem that the construction property of a panel fixing structure fell.

  The present invention was devised to solve such problems. The purpose of the present invention is to improve the strength of the fixed structure while suppressing the increase in the number of members and the number of processes during construction. A battery module fixing structure and a photovoltaic power generation system using the fixing structure are provided.

  In order to solve the above-described problems, the solar cell module fixing structure of the present invention is a fixing structure for fixing a solar cell module on a gantry, and the gantry has a column erected on an installation surface and the column. A first support member and a second support member fixed to each other, wherein the first support member and the second support member are arranged in a direction crossing each other, and the first support member and the second support member are arranged on the first support member. Two support members are mounted, and a solar cell module is fixed to the second support member.

  Moreover, according to the fixing structure of the solar cell module of the present invention, the first support member is provided such that a fixing portion can be moved and adjusted along the longitudinal direction of the support column with respect to the support column, and the second support member Has a configuration in which a fixed portion is provided to be adjustable with respect to the support column.

  According to the fixing structure of the solar cell module of the present invention, the first support member includes a base portion fixed to the support column and an upper plate extending obliquely upward from an upper side of the base portion, and the upper plate The second support member is placed on the surface.

  Moreover, according to the fixing structure of the solar cell module of the present invention, the column includes the column main plate, each column side plate extending in the same direction from both sides of the column main plate, and both outer sides from the tip side of each column side plate. And the first support member is fixed to the support plate.

  Moreover, according to the fixing structure of the solar cell module of the present invention, the second support member includes a main plate, side plates extending in the same direction from both sides of the main plate, and both outer sides from the front end side of the side plates. Each of the extended edge plates, and the edge plate is fixed to the upper surface of the first support member.

  Moreover, the solar power generation system of this invention is characterized by the several solar cell module being fixed using the fixing structure of the solar cell module of said each structure.

  According to the solar cell module fixing structure and the solar power generation system of the present invention, since the load of the solar cell module placed on the second support member is distributed to the first support member and the support column, The strength of the fixed structure can be improved.

It is a perspective view which shows the solar power generation system of this invention formed by supporting the several solar cell module using the support structure of the solar cell module of this invention. It is a side view which shows the solar power generation system of this invention formed by supporting a several solar cell module using the support structure of the solar cell module of this invention. It is the perspective view which looked at the solar cell module 2 from the light-receiving surface side. FIG. 4 is a sectional view taken along line AA in FIG. 3. It is a perspective view which shows a support | pillar. It is a perspective view which shows a horizontal rail. It is a perspective view which shows a vertical cross. It is a perspective view which shows the shape of a front-back brace. It is a perspective view which shows the shape of a left-right brace. It is a perspective view which decomposes | disassembles and shows the fixing structure of the vertical cross with respect to a support | pillar. It is a side view of the state which fixed the vertical crosspiece to the support | pillar. It is sectional drawing of the state which fixed the vertical crosspiece to the support | pillar. It is sectional drawing of the state which fixed the vertical crosspiece to the support | pillar of other embodiment. It is a perspective view which decomposes | disassembles and shows the fixing structure of the horizontal rail with respect to a support | pillar. It is a front view of the state which fixed the crosspiece to the support | pillar. It is sectional drawing of the state which fixed the crosspiece to the support | pillar. It is sectional drawing which shows the state which fastened and fixed after fixing the vertical beam to the support | pillar, and also adjusting the height position of a horizontal beam. It is sectional drawing which shows a mode that a vertical beam is temporarily fixed to a support | pillar and the height position of a horizontal beam is adjusted. It is sectional drawing which shows a mode that a vertical beam is temporarily fixed to a support | pillar and the height position of a horizontal beam is adjusted. It is sectional drawing which shows the fixing structure of another vertical beam and a horizontal beam. It is a perspective view which decomposes | disassembles and shows the connection structure using the horizontal beam coupling tool which connects the edge parts of an adjacent horizontal beam. It is a perspective view which shows the fixing structure of the front-back brace. It is a perspective view which decomposes | disassembles and shows the fixing structure of the edge part of the front-back brace with respect to a vertical cross. It is a front view which shows the fixing structure of a left-right brace. It is a perspective view which shows the fixing structure of the edge part of the left-right brace with respect to a support | pillar. It is a perspective view of the module connector which mounts and fixes a solar cell module in a horizontal installation state on the adjacent vertical beam. It is sectional drawing which expands and shows partially the fixing | fixed part of the state which mounted and fixed the solar cell module on the vertical rail using the module coupling tool. It is a perspective view which shows the structure of the support | pillar which concerns on Embodiment 2. FIG. It is a perspective view which expands and partially shows the shape of the crosspiece which concerns on Embodiment 3. FIG. It is sectional drawing which shows the fixation structure of the horizontal crosspiece | staff which concerns on Embodiment 3, a support | pillar, and a vertical crosspiece. It is a perspective view which shows the shape of the support | pillar which concerns on Embodiment 4. FIG. It is a perspective view which shows the shape of the support | pillar which concerns on Embodiment 5. FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment 1>
FIG. 1 and FIG. 2 are a perspective view and a side view showing a solar power generation system of the present invention in which a plurality of solar cell modules are supported and fixed using the solar cell module support structure of the present invention.

  In the photovoltaic power generation system 1 of the present invention, a plurality of solar cell modules 2 are mounted and fixed on a gantry 3, and the gantry 3 is a plurality of support columns 11 erected on an installation surface (or installation base) 10. And a horizontal beam (first support member) 12 and a vertical beam (second support member) 13 that are supported and fixed to the upper ends of the columns 11, respectively. Furthermore, in the first embodiment, the front and rear braces 14 and the left and right braces 15 are provided in order to improve the strength of the entire gantry 3.

  The horizontal beam 12 and the vertical beam 13 are arranged in a direction in which the vertical beam 13 is placed on the horizontal beam 12 so as to intersect each other (a direction orthogonal to the first embodiment), and the solar cell module is disposed on the vertical beam 13. 2 has a structure in which it is mounted and fixed. In the first embodiment, the solar cell module 2 is installed such that the longitudinal direction is set sideways, that is, in a horizontally oriented state. However, the installing direction may be a vertically oriented state in which the longitudinal direction is set vertically.

  Specifically, in the first embodiment, the support column 11 is erected and fixed in two rows along the horizontal direction (X direction in FIG. 1) on the installation surface 10. The height of each column 11 in the row is set to be lower than the height of each column 11 in the second row on the rear side. Then, the front crosspieces 12 are arranged and fixed so as to straddle between the front columns 11 in the front row, and are straddled in the horizontal direction between the rear columns 11 in the second row. The rear crosspiece 12 is placed and fixed across the bridge. Thus, the rear side rail 12 is arranged to be higher than the front side rail 12.

  Then, the plurality of vertical beams 13 are arranged and fixed in an inclined state by bridging the horizontal beam 12 on the front side and the horizontal beam 12 on the rear side so as to straddle in the vertical direction (Y direction in FIG. 1). Has been. The arrangement interval of the vertical bars 13 in the horizontal direction (X direction) is shorter than the length of the long side of the solar cell module 2, and each solar cell module 2 is supported in an inclined state by two adjacent vertical bars 13. It is supposed to be configured. In the first embodiment, four solar cell modules 2 are adjacently disposed along the vertical direction (Y direction) on the pair of vertical rails 13 and 13, and a plurality of these solar cell modules 2 are set as a set in the horizontal direction. Are arranged adjacent to each other. However, the number of the solar cell modules 2 arranged on the pair of vertical rails 13 and 13 is not limited to four, and the number of arrangement groups in the horizontal direction is not particularly limited.

  Moreover, the space | interval of the support | pillar 11 adjacent to a horizontal direction (X direction) is set to the space | interval sufficiently wider than the space | interval of the vertical rail 13 adjacent to a horizontal direction (X direction). Thus, in the first embodiment, a plurality of vertical bars 13 are also arranged between the horizontal pillars 11, and the vertical bars 13 arranged between the pillars 11 are placed and fixed on the horizontal bars 12. However, it is not directly fixed to the column 11. However, in the first embodiment, the interval is set so that the vertical beam 13 is always disposed at the position of the column 11, and the vertical beam 13 disposed at the position of the column 11 is as described above. The vertical beam 13 is fixed to both the column 11 and the horizontal beam 12.

  In addition, the base end portion close to the installation surface 10 of the column 11 of the second row and the portion close to the column 11 of the first row of the vertical beam 13 arranged and fixed to the column 11 are obliquely bridged. The front and rear braces 14 are connected and fixed. In addition, two front and rear braces 14 are obliquely bridged between a base end portion of the first and second columns of columns 11 near the installation surface 10 and a horizontal beam 12 supported and fixed to the columns 11. Are connected and fixed.

  Next, the respective constituent members of the solar cell module 2 and the gantry 3 constituting the solar power generation system 1 will be sequentially described.

(Description of solar cell module 2)
3 is a perspective view of the solar cell module 2 as seen from the light receiving surface side, and FIG. 4 is a cross-sectional view taken along line AA of FIG.

  The solar cell module 2 includes a solar cell module main body 20 and a frame member 21 that holds the peripheral edge of the solar cell module main body 20. The frame member 21 includes a holding portion 22, a wall portion 23 hanging downward from the holding portion 22, and a bottom piece 24 that is parallel to the solar cell module body 20 and extends horizontally from the lower end of the wall portion 23. And have. In addition, the bottom piece 24 is formed with an insertion hole 24a for inserting a screw member, which is a fastening member, at a position where the bottom piece 24 is placed on a vertical rail 13 described later.

  The holding part 22 has a pair of holding pieces 22b and 22c extending in the same lateral direction, and the end of the solar cell module body 20 is sandwiched between the holding pieces 22b and 22c.

  Although not shown, the solar cell module main body 20 has a configuration in which a light-transmitting base material, a sealing resin, a solar cell, a sealing resin, and a back surface side protective material are sequentially stacked from the light receiving surface side. . For example, a glass substrate is used as the light-transmitting substrate, and EVA (ethylene vinyl acetate resin) is used as the sealing resin. Moreover, for example, a solar battery cell using a polycrystalline silicon wafer is used as the solar battery cell, and a multilayer sheet in which, for example, a PET sheet is laminated is used as the back surface side protective material.

(Description of support 11)
FIG. 5 is a perspective view showing the column 11.

  As shown in FIG. 5, the column 11 has a long rectangular main plate (column main plate) 11 a formed vertically and each side plate (column side plate) 11 b extending in the same direction from both sides of the main plate 11 a. Its cross-sectional shape is a substantially groove-type structure.

  In the upper part of the main plate 11a, a plurality of first insertion holes 11e formed in a vertically long shape (two places on the left and right in this example) are formed. The first insertion hole 11e is a hole for inserting a fastening member such as a bolt or a screw for supporting and fixing a horizontal rail 12 described later. A cylindrical second insertion hole 11f is formed in the upper part of the side plate 11b. The second insertion hole 11f is a hole for inserting a fastening member such as a bolt or a screw for supporting and fixing a vertical rail 13 described later.

  In addition, a cylindrical third insertion hole 11i is formed on the lower (base end) side of the side plate 11b. The third insertion hole 11i is a hole for inserting a fastening member such as a bolt or a screw for supporting and fixing one end of a front and rear brace 14 to be described later. Furthermore, a cylindrical fourth insertion hole 11j is formed on the lower (base end) side of the main plate 11a. The fourth insertion hole 11j is a hole for inserting a fastening member such as a bolt or a screw for supporting and fixing a connection plate 45 described later.

  Such a support | pillar 11 punches and bends a steel plate, for example, and gives the surface the plating for improving corrosion resistance. Also, an aluminum alloy may be extruded and anodized to prevent corrosion, or a material such as a stainless alloy or plastic resin may be used.

(Description of side rail 12)
FIG. 6 is a perspective view showing the horizontal rail 12.

  As shown in FIG. 6, the horizontal rail 12 includes a long rectangular main plate (base portion) 12 a that is formed in a horizontally long shape, and an upper plate 12 b that extends obliquely upward in one direction from the upper side of the main plate 12 a in the longitudinal direction. The cross-sectional shape is a generally flat chevron shape. A plurality of first insertion holes 12 e are formed in the main plate 12 a of the horizontal rail 12 in accordance with the arrangement interval of the columns 11.

  Moreover, the 2nd penetration hole 12f for connecting and fixing the mutually adjacent edge part at the both ends of the main board 12a and the upper board 12b with the horizontal crosspiece connecting tool 40 mentioned later when the horizontal crosspiece 12 is adjacently arranged is provided. Is formed. That is, as shown in FIG. 1, the arrangement region of the horizontal rails 12 is extremely long in the X direction, and it is difficult to produce the horizontal rails 12 as a single member. The components 40 are connected to each other.

  Further, the upper plate 12b is formed with a third insertion hole 12g for connecting and fixing the vertical beam 13 in accordance with the arrangement interval of the vertical beam 13. Further, a fourth insertion hole 12h is formed in the main plate 12a of the horizontal rail 12 at a position where one end of a left and right brace 15 described later is connected.

  Such a cross rail 12 is made of, for example, a steel plate that is punched and bent, and the surface thereof is plated.

(Description of the vertical rail 13)
FIG. 7 is a perspective view showing the vertical rail 13.

  As shown in FIG. 7, the vertical rail 13 includes a long rectangular main plate 13 a that is formed in a vertically long shape, each side plate 13 b that extends in the same direction from both sides of the main plate 13 a, and both outer sides from the front end side of each side plate 13 b. Each of the extended edge plates 13c has a substantially hat-shaped cross section. First insertion holes 13 e are formed in the two side plates 13 b of the vertical beam 13 at two positions in the front and rear corresponding to the arrangement positions of the columns 11. In addition, a second insertion hole 13f is formed in the edge plate 13c at a position corresponding to the position where the horizontal rail 12 is disposed. However, in FIG. 7, only the second insertion hole 13f of the front edge plate 13c is shown.

  The main plate 13a of the vertical beam 13 is formed with a third insertion hole 13g for connecting and fixing the ends of the solar cell modules 2 arranged side by side with a module connector 50 described later. Further, the both side plates 13b of the vertical beam 13 are formed with fourth insertion holes 13h at positions where one end portions of the front and rear braces 14 to be described later are connected.

  As such a vertical rail 13, for example, a steel plate is punched and bent, and the surface thereof is plated, but a material can be appropriately selected as in the case of the support 11.

(Description of front and rear brace 14)
FIG. 8A is a perspective view showing the shape of the front and rear braces 14.

  The front and rear braces 14 have a long rectangular main plate 14a formed in a vertically long shape and side plates 14b extending in the same direction from both sides of the main plate 14a, and the cross-sectional shape thereof is a groove-type structure. Both end portions in the longitudinal direction of each side plate 14 b are extended so as to protrude from the end portion of the main plate 14 a, and serve as connecting pieces 14 c that are connected to the column 11 and the vertical rail 13. Bolt insertion holes 14 i for connecting the front and rear braces 14 to the columns 11 and the vertical bars 13 are formed in the connection piece 14 c.

(Explanation of left and right braces 15)
FIG. 8B is a perspective view showing the shape of the left and right braces 15.

  The left and right braces 15 are a horizontally long oblong main plate 15a, an upper plate 15b extending in one direction from the upper side of the main plate 15a in the longitudinal direction, and a lower side from the front end side of the upper plate 15b. And an upper rib piece 15c extending from the lower side of the main plate 15a in the same direction as the upper plate 15b. Both end portions of the main plate 15a are cut obliquely, and bolt insertion holes 15j for connecting the left and right braces 15 to the columns 11 and the cross rails 12 are formed in the vicinity of both ends.

  Next, a structure for fixing the vertical beam 13 to the column 11 will be described, then a structure for fixing the horizontal beam 12 to the column 11 will be described, and finally, a structure for fixing the front and rear braces 14 and the left and right braces 15 will be described.

  First, a structure for fixing the vertical beam 13 to the column 11 will be described.

  9A is an exploded perspective view showing the structure for fixing the vertical beam 13 to the support column 11, FIG. 9B is a side view of the state where the vertical beam 13 is fixed to the support column 11, and FIG. 9C is an illustration of fixing the vertical beam 13 to the support column 11. It is sectional drawing of the state which carried out.

  As shown in FIG. 9A to FIG. 9C, the vertical bars 13 are fitted to the upper ends of the columns 11 so as to be covered, and the side plates of the vertical beams 13 are inserted into the second insertion holes 11 f formed in the side plates 11 b of the columns 11. The first insertion holes 13e formed in 13b are respectively aligned, and bolts 31 that are fastening members are inserted from one side plate 13b side of the vertical rail 13, and the second plate formed in each side plate 11b of the column 11 The insertion hole 11f and the first insertion hole 13e formed on the other side plate 13b of the vertical rail 13 are sequentially inserted, and a fastening member is provided at a tip portion (screw thread portion) of the bolt 31 protruding from the first insertion hole 13e. The nut 32 is screwed in and the vertical bar 13 is fastened and fixed to the upper end portion of the column 11. In addition, the code | symbol 33 in a figure is a washer. At this time, in a state where the bolt 31 and the nut 32 which are fastening portions are temporarily tightened, the vertical rail 13 is rotatable with respect to the column 11 (that is, the inclination angle can be adjusted). Therefore, in this state, the lower surface of the main plate 13a of the vertical beam 13 and the upper ends of the main plate 11a and the side plates 11b of the support column 11 are not in contact with each other and have a slight gap for rotation.

  However, as shown in FIG. 9D, the upper end of the side plate 11b of the column 11 is formed in a semicircular arc shape centering on the second insertion hole 11f, and the lower surface of the main plate 13a of the vertical beam 13 is in contact with the upper end of the side plate 11b. You may do it. As a result, the vertical rail 13 is rotatably supported while being directly received by the side plate 13b of the column 11.

  Next, the fixing structure of the horizontal rail 12 with respect to the support | pillar 11 is demonstrated.

  10A is an exploded perspective view showing the fixing structure of the horizontal beam 12 to the support column 11, FIG. 10B is a front view of the state where the horizontal beam 12 is fixed to the support column 11, and FIG. It is sectional drawing of the state which carried out.

  As shown in FIGS. 10A to 10C, the main plate 12 a of the horizontal beam 12 is attached to the main plate 11 a of the column 11, and the main plate of the horizontal beam 12 is inserted into the two first insertion holes 11 e formed in the main plate 11 a of the column 11. The pair of first insertion holes 12e formed in 12a are aligned, and are fastened and fixed from both sides by bolts 31 and nuts 32, which are fastening members, respectively. In addition, the code | symbol 33 in a figure is a washer. At this time, since the first insertion hole 11e on the column 11 side is formed in a vertically long shape, with the bolt 31 and the nut 32 temporarily tightened, the height position in the vertical direction of the horizontal rail 12 is adjusted and finally Can be fastened and fixed. That is, the upper plate 12b of the horizontal beam 12 is attached to the edge plate 13c of the vertical beam 13, the position is adjusted so as to receive the vertical beam 13 by the horizontal beam 12, and then finally fastened and fixed. FIG. 11 is a cross-sectional view showing a state in which the vertical beam 13 is fastened and fixed to the column 11 and the height position of the horizontal beam 12 is adjusted and then fixed. According to this fixing structure, the vertical beam 13 is supported and fixed by both the column 11 and the horizontal beam 12, and the load applied to the vertical beam 13 is transferred to each of the column 11 and the horizontal beam via each support fixing part. Accordingly, the strength of the entire fixing structure as the gantry 3 is improved.

  Further, the vertical beam 13 is provided so as to be rotatable with respect to the support column 11, and the horizontal beam 12 is provided so that the position can be adjusted in the vertical direction. Therefore, for example, as shown in FIG. 12A, the horizontal beam 12 having a different inclination angle of the upper plate 12b with respect to the main plate 11a (in FIG. 12A, the inclination angle is steep compared to the horizontal beam 12 shown in FIG. Even in the case of using the horizontal beam, the vertical beam 13 is rotated by adjusting the height position of the horizontal beam 12 (in this case, shifting upward), as shown in FIG. 12B. Thus, the vertical beam 13 and the horizontal beam 12 can be fastened and fixed to the column 11 after the inclination angle of the vertical beam 13 is finally matched with the inclination angle of the upper plate 12b of the horizontal beam 12, respectively. Therefore, even when a plurality of types of horizontal rails 12 having different inclination angles are prepared, any horizontal rail can be adjusted by adjusting the height position when attached to the column 11 according to each horizontal rail 12. 12, the vertical beam 13 and the horizontal beam 12 can be fastened and fixed to the column 11 after the inclination angle with the vertical beam 13 is matched.

  In the first embodiment, the edge plate 13c of the vertical beam 13 is simply placed on and supported by the upper plate 12b of the horizontal beam 12. However, as described above, the vertical beam 13 is disposed on the upper plate 12b. Since the third insertion hole 12g for connecting and fixing the vertical beam 13 is formed in accordance with the interval, the edge plate 13c of the vertical beam 13 and the upper plate 12b of the horizontal beam 12 are also fastening members such as bolts, nuts and screws. May be fastened and fixed. As a result, the vertical beam 13 is more firmly fixed to the column 11 and the horizontal beam 12.

  Further, in the first embodiment, as described above, the other vertical beam 13 that is not located on the column 11 is supported and fixed only by the horizontal beam 12. FIG. 13 is a cross-sectional view showing a fixing structure of another vertical beam 13 and horizontal beam 12.

  As shown in FIG. 13, the other vertical beam 13 has the edge plate 13c directly mounted on the main plate 12a of the horizontal beam 12, and the second insertion hole 13f formed in the edge plate 13c is connected to the horizontal beam 12 as shown in FIG. In alignment with the third insertion hole 12g formed in the main plate 12a, the bolt 31 and the nut 32, which are fastening members, are fastened and fixed from both the upper and lower sides.

  In the first embodiment, the adjacent horizontal rails 12 are connected to each other by the horizontal rail connector 40.

  FIG. 14 is an exploded perspective view showing a connection structure using a horizontal beam connector 40 that connects the ends of adjacent horizontal beams 12.

  The horizontal beam coupler 40 includes a main plate 40a attached across the end of the main plate 12a of the adjacent horizontal beam 12, and an upper plate attached across the end of the upper plate 12b of the adjacent horizontal beam 12. 40b and a lower plate 40c locked across the lower end portion of the main plate 12a of the adjacent cross rail 12 is provided.

  The main plate 40a of the horizontal beam coupler 40 is formed with insertion holes 40f at positions corresponding to the second insertion holes 12f formed in the main plate 12a of the adjacent horizontal beam 12, and the upper plate 40b is adjacent to the adjacent horizontal plate 40a. An insertion hole 40f is formed at a position corresponding to each of the second insertion holes 12f formed in the upper plate 12b of the crosspiece 12.

  Then, the main plate 40a of the horizontal beam coupler 40 is installed so as to straddle the main plate 12a of the adjacent horizontal beam 12, and the upper plate 40b is installed so as to straddle the upper plate 12b of the adjacent horizontal beam 12, The lower plate 40c is received and locked so as to straddle the lower end portion of the main plate 12a of the adjacent horizontal rail 12. Then, in this state, the second insertion hole 12f of each cross beam 12 facing and the insertion hole 40f of the horizontal beam connector 40 are fastened and fixed from both the front and rear sides by bolts 31 and nuts 32, which are fastening members. To do. As a result, the ends of the adjacent cross rails 12 are firmly connected and fixed by the cross rail connector 40.

  Next, the fixing structure of the front and rear braces 14 will be described.

  FIG. 15A is a perspective view showing a fixing structure of the front and rear braces 14, and FIG. 15B is an exploded perspective view showing a fixing structure of the end portions of the front and rear braces 14 with respect to the vertical rail 13 (portion indicated by symbol A in FIG. 15A). It is.

  As shown in FIG. 15B, the end of the front and rear braces 14 on the side of the vertical beam 13 is in a state in which the connecting pieces 14 c of the side plates 14 b are fitted between the side plates 13 b of the vertical beam 13 and attached. The bolt insertion holes 14i formed in the side plates 14b of the front and rear braces 14 are aligned with the fourth insertion holes 13h formed in the side plates 13b of the first and second side plates 13b. A bolt 31 as a fastening member is inserted through the insertion hole 13h, and a bolt insertion hole 14i formed in each side plate 14b of the front and rear braces 14 and a fourth insertion hole 13h formed in the other side plate 13b of the vertical rail 13 are provided. By inserting the nut 32 as a fastening member into the tip end portion (screw thread portion) of the bolt 31 protruding through the fourth insertion hole 13h in sequence, the end of the front and rear braces 14 on the side of the vertical beam 13 is connected to the vertical beam 13. Fastening and fixing It has been.

  On the other hand, as shown in FIG. 15A, the end of the front / rear brace 14 on the side of the support 11 is in the state where the connecting pieces 14c of the side plates 14b are fitted and attached to the side plates 11b of the support 11 from the outside. The bolts 31 as the fastening members are sequentially inserted into the 14 bolt insertion holes 14i (see FIG. 8A) and the third insertion holes 11i (see FIG. 5) of the support column 11, and are fastened and fixed with nuts. That is, the end of the front and rear brace 14 on the column 11 side is the fastening structure of the end of the front and rear brace 14 on the side of the vertical rail 13 except that the connecting piece 14c of the front and rear brace 14 is fitted on the side plate 11b of the column 11. (The fastening structure shown in FIG. 15B).

  As described above, the cross-sectional shape of the front / rear brace 14 is a groove-type structure, and the side plates 14b are the side plates 11b of the support column 11 and the side plates 13b of the vertical beam 13 with respect to the support column 11 and the vertical beam 13. It is the structure where it is closely connected to and connected. According to this structure, even when a load is applied to the gantry 3 from an oblique direction or a horizontal direction, the front and rear braces 14 are fastened and fixed to the column 11 and the vertical beam 13 with a structure that is difficult to twist. Can be improved.

  Next, the fixing structure of the left and right braces 15 will be described.

  FIG. 16A is a front view showing the fixing structure of the left and right braces 15, and FIG. 16B is a perspective view showing the fixing structure of the ends of the left and right braces 15 with respect to the column 11.

  Each of the left and right braces 15 has a bolt insertion hole 15j (with one end attached to the connecting plate 45 attached to the base end of the column 11 and the other end attached to the main plate 12a of the horizontal rail 12. A bolt 31 that is a fastening member is inserted into the bolt 31 (see FIG. 8B), and is fastened and fixed by a nut 32.

  Specifically, as shown in FIG. 16B, the connecting plate 45 is formed of a support plate 45a attached to the main plate 12a of the support column 11 and a connecting plate 45b extending from the left and right sides of the support plate 45a. Has been. The support plate 45a is formed with a cylindrical bolt insertion hole 45c, and the connection plate 45b is formed with a cylindrical bolt insertion hole 45d.

  Therefore, the connecting plate 45 is attached by aligning the bolt insertion hole 45c formed in the support plate 45a with the fourth insertion hole 11j (see FIG. 5) formed in the main plate 11a of the support column 11, and using a fastening member. A bolt 31 is inserted into the insertion holes 45 c and 11 j and is fastened and fixed to the column 11 by fastening with the nut 32. In addition, in FIG. 16B, although the connection plate 45 is being fixed to the support | pillar 11 in one place, you may make it fix in multiple places. Further, instead of fastening with bolts and nuts, welding and fixing may be used.

  One end of the left and right braces 15 is attached to the connecting plate 45b of the connecting plate 45 fastened and fixed to the column 11, and the bolt insertion holes 15j (see FIG. 8B) of the left and right braces 15 and the bolts of the connecting plate 45b are inserted. The bolt 31 which is a fastening member is inserted into the hole 45d and fastened and fixed by the nut 32, thereby being fastened and fixed to the connecting plate 45.

  Further, as shown in FIG. 16A, the other end portions of the left and right braces 15 are attached to the main plate 12a of the horizontal rail 12, and the bolt insertion holes 15j (see FIG. 8B) of the left and right braces 15 and the horizontal rail 12 are provided. A bolt 31 as a fastening member is inserted into a fourth insertion hole 12h (see FIG. 6) formed in the main plate 12a and is fastened and fixed by a nut 32, thereby being fastened and fixed to the horizontal rail 12.

  By connecting the front and rear braces 14 and the left and right braces 15 in this way, the front and rear braces 14 and the left and right braces 15 function as braces, and thus the strength of the entire fixing structure as the gantry 3 is further improved.

  In the first embodiment, the solar cell module 2 is placed and fixed on the vertical rail 13 of the gantry 3 shown in FIG. 1 constructed as described above. In this fixing structure, the module connector 50 is used to fix the solar cell module 2 to the vertical rail 13.

  FIG. 17 is a perspective view of a module connector 50 for mounting and fixing the solar cell module 2 in a horizontally placed state on the adjacent vertical rails 13.

  The module connector 50 is a connector that connects the bottom piece 24 of the frame member 21 that holds the peripheral edge of the solar cell module body 20 to the vertical rail 13, and a main plate 50a that holds the bottom piece 24 of the frame member 21 from above. And a pair of sandwiching pieces 50b bent downward from both ends of the main plate 50a. A female screw hole 51 is formed in the main plate 50 a at a position facing the insertion hole 24 a (see FIG. 4) formed in the bottom piece 24 of the frame member 21. The width of the main plate 50a is slightly wider than the width of the main plate 13a of the vertical beam 13, and the width between the opposing surfaces of the pair of sandwiching pieces 50b folded downward is the width of both side plates 13b of the vertical beam 13. It is formed slightly wider (substantially the same width) than the width between the outer surfaces (that is, the width of the main plate 13a).

  FIG. 18 is a cross-sectional view showing a part of the fixed portion in a state where the solar cell module 2 is placed and fixed on the vertical rail 13 using the module connector 50.

  The bottom piece 24 of the frame member 21 of the solar cell module 2 is placed on the main plate 13 a of the vertical beam 13, and the third insertion hole 13 g of the vertical beam 13 and the insertion hole 24 a of the bottom piece 24 are aligned. Next, the main plate 50 a of the module connector 50 is attached from above the bottom piece 24, and the female screw hole 51 of the main plate 50 a is aligned with the insertion hole 24 a of the bottom piece 24. At this time, the sandwiching piece 50b of the module connector 50 is disposed so as to sandwich both side plates 13b, 13b of the vertical rail 13 from both outer sides. Thereafter, the bolt 31 as a fastening member is inserted from the lower surface side of the main plate 13a of the vertical rail 13 into the third insertion hole 13g of the main plate 13a and the insertion hole 24a of the bottom piece 24 of the frame member 21, and the module connector 59 The solar cell module 2 is placed and fixed on the vertical rail 13 by being screwed into the female screw hole 51.

  In addition, the fixing structure of the solar cell module 2 using the module connector 50 illustrated here is merely an example, and is not limited to such a fixing structure by the module connector 50. Various fixing structures have been conventionally disclosed for fixing structures for installing and fixing the solar cell module 2 on the gantry 3, and these fixing structures can be used as appropriate in the present invention.

<Embodiment 2>
FIG. 19 is a perspective view illustrating the structure of the support column 11 according to the second embodiment.

  In the first embodiment, the column 11 has a groove-shaped cross section formed by the main plate 11a and the side plates 11b extending in the same direction from both sides of the main plate 11a. Has a substantially hat-shaped structure.

  That is, the column 11 according to the second embodiment has a long rectangular main plate 11a that is formed in a vertically long shape, each side plate 11b that extends in the same direction from both sides of the main plate 11a, and extends outward from both ends of each side plate 11b. And a support plate 11c. A vertically long first insertion hole 11 e is formed in the upper part of both support plates 11 c of the column 11. The first insertion hole 11 e is a hole for inserting a fastening member such as a bolt or a screw for supporting and fixing the horizontal rail 12. A cylindrical second insertion hole 11f is formed in the upper part of the side plate 11b. The second insertion hole 11 f is a hole for inserting a fastening member such as a bolt or a screw for supporting and fixing the vertical rail 13. Such a support | pillar 11 punches and bends a steel plate, and plated the surface.

  In the column 11 according to the second embodiment, the cross rail 12 is attached to the support plate 11c, not the main plate 11a of the column 11, and is fastened and fixed. As a result, the connecting structure between the column 11 and the crosspiece 12 has a box-like cross-sectional shape when viewed from above, so that the fixing strength is further improved.

  Moreover, in the support | pillar 11 of Embodiment 2, the connection plate 45 shown to FIG. 16A and FIG. 16B is omissible by having the support plate 11c. That is, in the support column 11 of the second embodiment, the support plate 11 c can be used as the connection plate 45 b of the connection plate 45. In other words, the bolts 31 that are fastening members may be inserted into the bolt insertion holes 15j with one end portions of the left and right braces 15 attached to the support plate 11c of the support column 11, and tightened and fixed. In this case as well, bolt insertion holes are formed in the support plate 11c of the support column 11 so as to face the bolt insertion holes 15j at one end of the left and right braces 15.

<Embodiment 3>
20 is a partially enlarged perspective view showing the shape of the horizontal beam 12 according to the third embodiment, and FIG. 21 is a cross-sectional view showing a fixing structure of the horizontal beam 12, the column 11 and the vertical beam 13 according to the third embodiment. FIG.

  In the first embodiment, the horizontal rail 12 is composed of the main plate 12a and the upper plate 12b extending obliquely in one direction obliquely upward from the upper side of the main plate 12a in the longitudinal direction. The cross-sectional shape is a substantially C channel structure with a lip.

  That is, the horizontal rail 12 according to the third embodiment includes an oblong main plate 12a that is formed in a horizontally long shape, an upper plate 12b that extends obliquely upward from one upper side of the main plate 12a in the longitudinal direction, and a main plate. A lower plate 12c extending in the same direction and in the lateral direction from the lower side of the longitudinal direction of 12a, an upper rib piece 12d extending downward from the tip side of the upper plate 12b, and an upper side from the tip side of the lower plate 12c And a lower rib piece 12i extending in the vertical direction. In addition, since it is the same as that of the horizontal rail 12 of Embodiment 1 about another structure, the same code | symbol shall be attached | subjected to the same structural part here and detailed description is abbreviate | omitted.

  When the horizontal beam 12 having such a shape is used, since the strength of the horizontal beam 12 itself is improved, the support strength of the vertical beam 13 is also improved.

  Incidentally, the horizontal beam connecting tool for connecting the horizontal beam 12 according to the third embodiment further extends the lower plate 40c in accordance with the lower plate 12c of the horizontal beam 12 in the horizontal beam connector 40 shown in FIG. What is necessary is just a structure.

<Embodiment 4>
FIG. 22 is a perspective view showing the shape of the column 11 according to the fourth embodiment. However, in the fourth embodiment, the case of application to the shape of the column 11 according to the first embodiment (the cross section is a groove shape) is illustrated, but the shape of the column according to the second embodiment (the cross section is substantially a hat). The same applies to the shape of the mold.

  In the column 11 according to the first embodiment, the first insertion hole 11e formed in the main plate 11a is formed as a vertically long simple long hole, and the cylindrical shaft portion of the bolt 31 moves up and down in the first insertion hole 11e. The height position of can be adjusted.

  On the other hand, in the fourth embodiment, the first insertion hole 11e is formed by continuously forming a plurality of first circular holes 11e1 in the longitudinal direction of the support column 11 at intervals slightly narrower than the diameter of the first circular hole 11e1. It has been made. For example, each first circular hole 11e1 has a diameter of 11 mm and an interval of 8 mm, and the first circular holes 11e1 are continuously formed and communicated to form the first insertion hole 11e. Therefore, the first insertion hole 11e is constricted at an intermediate position between the adjacent first circular holes 11e1, and the opening width of the first insertion hole 11e at the constricted portion at the intermediate position is narrower than the diameter of the first circular hole 11e1. It has become. Such a support | pillar 11 is produced by giving a bending process and a drilling process to the steel plate about 5 mm thick, and plated the surface.

  According to this configuration, when the horizontal beam 12 is attached and fixed to the column 11, the first insertion hole 12e formed in the main plate 12a of the horizontal beam 12 is replaced with the first insertion hole 11e formed in the main plate 11a of the column 11. The horizontal rail 12 can be temporarily fixed to the column 11 by inserting the bolt 31 into the first circular hole 11e1 and the first insertion hole 12e that are overlapped with the first circular hole 11e1 and overlap each other. Therefore, the height of the horizontal rail 12 can be adjusted by sequentially changing the position of the first circular hole 11e1 to be overlapped. That is, by using the column 11 according to the fourth embodiment, it is possible to adjust the height of the horizontal rail 12 at the arrangement interval of the first circular holes 11e1.

<Embodiment 5>
FIG. 23 is a perspective view showing the shape of the column 11 according to the fifth embodiment. However, in the fifth embodiment, the case of application to the shape of the column 11 according to the first embodiment (the cross section is a groove-shaped shape) is illustrated, but the shape of the column according to the second embodiment (the cross section is substantially a hat). The same applies to the shape of the mold.

  In the column 11 according to the first embodiment, the first insertion hole 11e formed in the main plate 11a is formed as a vertically long simple long hole, and the cylindrical shaft portion of the bolt 31 moves up and down in the first insertion hole 11e. The height position of can be adjusted.

  On the other hand, in the fifth embodiment, the first insertion hole 11e is formed by continuously forming a plurality of first circular holes 11e1 in the longitudinal direction of the support column 11 with a predetermined interval (independently). Such a support | pillar 11 is produced by giving a bending process and a drilling process to the steel plate about 5 mm thick, and plated the surface.

  According to this configuration, when the horizontal beam 12 is attached and fixed to the column 11, the first insertion hole 12 e formed in the main plate 12 a of the horizontal beam 12 is replaced with an arbitrary first circular hole formed in the main plate 11 a of the column 11. The horizontal rail 12 can be temporarily fixed to the column 11 by inserting the bolt 31 into the first circular hole 11e1 and the first insertion hole 12e that overlap with each other and overlap each other. Therefore, the height of the horizontal rail 12 can be adjusted by sequentially changing the position of the first circular hole 11e1 to be overlapped. That is, by using the column 11 according to the fourth embodiment, the height of the horizontal rail 12 can be adjusted by the arrangement interval of the first circular holes 11e1 although the height adjustment pitch is slightly larger.

  In addition, in each said embodiment, although all the fixing parts are made into the fastening structure by a volt | bolt and a nut, it is not necessarily limited to a fastening structure. For example, it is possible to form a locking portion on one member and a locked portion on the other member so that the strength of the entire gantry 3 is ensured by each locking structure. It is also possible to form the fitting portion on one member and form the fitted portion on the other member so as to ensure the strength of the entire gantry 3 with each fitting structure. Furthermore, it is also possible to configure such that the strength as the gantry 3 is ensured by appropriately combining these locking structure and fitting structure with a fastening structure such as a bolt or nut.

  Moreover, in each said embodiment, although all the fixing parts are made into the fastening structure by a volt | bolt and a nut, the last hole by the side of the penetration | insertion tip into which a volt | bolt is penetrated is made into the internal thread hole by which the internal thread was formed in the inner peripheral part. Thus, the nut can be omitted. Further, the workability of the fastening work is improved as compared with the case where the fastening work is performed while holding the bolt and the nut from both sides of the fixed portion.

  In addition, embodiment disclosed this time is an illustration in all the points, Comprising: It does not become the basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the scope of claims. Moreover, all the changes within the meaning and range equivalent to a claim are included.

DESCRIPTION OF SYMBOLS 1 Photovoltaic power generation system 2 Solar cell module 3 Base 10 Installation surface 11 Support | pillar 11a Main plate (support main plate)
11b Side plate (post side plate)
11e 1st insertion hole 11f 2nd insertion hole 11i 3rd insertion hole 11j 4th insertion hole 12 Horizontal rail (1st support member)
12a Main plate (base)
12b Upper plate 12e First insertion hole 12f Second insertion hole 12g Third insertion hole 12h Fourth insertion hole 13 Vertical beam (second support member)
13a Main plate 13b Side plate 13c Edge plate 13e First insertion hole 13f Second insertion hole 13g Third insertion hole 13h Fourth insertion hole 14 Front and rear braces 14a Main plate 14b Side plate 14c Connection plate 14e Bolt insertion hole 15 Left and right braces 15a Main plate 15b Upper plate 15b Upper rib piece 15d Lower rib piece 15j Bolt insertion hole 20 Solar cell module body (solar cell panel)
21 Frame member 22 Holding part 22b, 22c Holding piece 23 Wall part 24 Bottom piece 24a Insertion hole 31 Bolt 32 Nut 33 Washer 40 Crosspiece connector 45 Connection plate 45a Support plate 45b Connection plate 45c Bolt insertion hole 45d Bolt insertion hole 50 Module Connector

Claims (6)

A fixing structure for fixing a solar cell module on a frame,
The gantry includes a column that is erected on an installation surface, and a first support member and a second support member that are respectively fixed to the column.
The first support member and the second support member are disposed in a direction crossing each other, and the second support member is placed on the first support member,
A solar cell module fixing structure, wherein a solar cell module is fixed to the second support member. The solar cell module fixing structure according to claim 1,
The first support member is provided such that a fixed portion of the first support member is movable and adjustable along a longitudinal direction of the support column,
The fixing structure of the solar cell module, wherein the second support member is provided with a fixed portion that can be rotated with respect to the support column. The solar cell module fixing structure according to claim 1 or 2,
The first support member includes a base fixed to the support column, and an upper plate extending obliquely upward from the upper side of the base.
A structure for fixing a solar cell module, wherein the second support member is placed on the upper plate. A solar cell module fixing structure according to any one of claims 1 to 3, wherein
The support column includes a support column main plate, each support column side plate extending in the same direction from both sides of the support column main plate, and each support plate extending outward from the front end side of each support column side plate,
The structure for fixing a solar cell module, wherein the first support member is fixed to the support plate. A solar cell module fixing structure according to any one of claims 1 to 4, wherein
The second support member includes a main plate, each side plate extending in the same direction from both sides of the main plate, and each edge plate extending outward from the front end side of each side plate,
The solar cell module fixing structure, wherein the edge plate is fixed to an upper surface of the first support member.   A solar power generation system, wherein a plurality of solar cell modules are fixed using the solar cell module fixing structure according to any one of claims 1 to 5.

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