JP2012253174A - Solar cell foundation block, solar cell array, and solar cell system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell foundation block capable of precisely and simply adjust the height of a solar cell array even if the ground is not uniformly settled, and to provide the solar cell array and a solar cell system.SOLUTION: A solar cell array includes a foundation block having anchor bolts capable of being lifted and lowered in a vertical direction, and solar cell modules are fixed by extending anchor bolts during ground subsidence. In a solar cell system, the solar cell array using the wide foundation block is disposed in a location directly affected by wind, and the solar cell array using the narrow foundation block is disposed at a portion on the leeward of the wide foundation block.

Description

  Embodiments described herein relate generally to a solar cell basic block, a solar cell array, and a solar cell system.

  With the recent increase in awareness of global warming prevention, megawatt-class large-scale solar cell systems are being built.

  This large-scale solar cell system requires a large number of solar cell arrays arranged on a vast land. If the ground where the solar cell array is installed is weak, uneven ground subsidence may occur. For example, when installing a solar cell array in a landfill, it may sink several tens of centimeters over several years. When the ground is unevenly subsidized, the solar cell array may be distorted and damaged.

  In this regard, a technique for providing a basic block for installing a solar cell array for each solar cell array has been proposed.

JP 2010-98241 A

  However, even with this technique, the solar cell array may be tilted or a shadow may be caused by the difference in the settlement depth of adjacent solar cells.

  Therefore, there is a need for a solar cell basic block, a solar cell array, and a solar cell system that can adjust the height of the solar cell array accurately and easily even when the ground sinks unevenly.

  In order to solve the above-described problems, an embodiment of the present invention is a solar cell module, a solar cell mount on which the solar cell module is mounted, a basic block on which the solar cell mount is mounted, and a solar cell mount on the basic block There is provided a solar cell array including an anchor bolt fixed to the base block and a sheath tube fixed inside the foundation block and storing the anchor bolt so as to be vertically movable.

It is a perspective view of a solar cell array using a solar cell basic block. It is the sectional view on the AA line of FIG. 1 of a basic block, and the top view of a component. It is the sectional view on the AA line of FIG. 1 of the basic block concerning an application example, and the top view of a component. It is a perspective view of a formwork material. It is a perspective view of a temporary receiving plate. It is a perspective view which shows the usage method of a formwork material and a temporary receiving plate. It is the figure which looked at the solar cell array from the side. It is a figure which shows the countermeasure when ground subsidence arises. It is a figure which shows the countermeasure when ground subsidence arises. It is a figure which shows the countermeasure when ground subsidence arises. It is a figure which shows the countermeasure when ground subsidence arises. It is a figure which shows the countermeasure when ground subsidence arises. It is a X arrow line view of Drawing 1 of a wide foundation block concerning the 1st example of application of a foundation block. It is the arrow X figure of FIG. 1 of the narrow basic block which concerns on the 2nd application example of a basic block. It is a top view of a solar cell system.

  Hereinafter, an embodiment of a solar cell basic block, a solar cell array, and a solar cell system according to the present invention will be described in detail with reference to the drawings.

  The solar cell array of the present embodiment includes a solar cell module, a solar cell frame on which the solar cell module is mounted, a basic block on which the solar cell frame is mounted, an anchor bolt that fixes the solar cell frame to the basic block, A sheath tube fixed to the inside of the base block and storing the anchor bolts so as to be vertically movable.

  FIG. 1 is a perspective view of a solar cell array using a solar cell basic block (hereinafter referred to as a basic block) according to the present embodiment. As shown in FIG. 1, the solar cell array 100 includes a solar cell module 201, a solar cell mount 202, and a basic block 300.

  The solar cell mount 202 is placed and fixed on the foundation block 300. The solar cell module 201 is mounted and fixed on the solar cell mount 202.

  In the example of FIG. 1, the solar cell mount 202 has six solar cell modules 201 mounted thereon. A part of the foundation block 300 is buried in the ground.

  2 is a cross-sectional view of the base block 300 taken along line AA of FIG. 1 and a plan view of components. As shown in FIG. 2 (A), the foundation block 300 is fixed inside the foundation block 300, has a cylindrical sheath tube 302 extending in the vertical direction, is fixed to the upper end of the sheath tube 302, and has an internal thread. A fixing plate 304 having a fixing plate insertion hole 304A, an adjuster bolt 303 that has threading over the entire length and is rotatably inserted into the fixing plate insertion hole 304A and stored in the sheath tube 302, and an adjustment bolt 303 Are provided with an adjustment nut 305 for fixing the rotating shaft in common, a mounting plate insertion hole 306A having a threaded inside, a mounting plate 306 fixed to the adjuster bolt 303, and a mounting plate 306. An annular washer 307 and an anchor bolt 308 fixed to the adjuster bolt 303.

  The base block 300 has legs 300 </ b> L that store the anchor bolts 308. The foundation block 300 is made of concrete. The foundation block 300 may be integrally formed. Moreover, the base block 300 may first form the base portion 301B on which the sheath tube 302 is placed, position the sheath tube 302 on the base portion 301B, and form the main body portion 301A from concrete.

  FIG. 2B is a plan view of the sheath tube 302. As shown in FIG. 2B, the sheath tube 302 has a cylindrical shape, and the internal space 302A is wide enough to accommodate the adjuster bolt 303 in a rotatable manner.

  FIG. 2C is a plan view of the fixed plate 304. The fixing plate 304 is preferably embedded in the foundation block 300 to prevent rotation.

  FIG. 2D is a plan view of the adjustment nut 305. As shown in FIG. 2D, the adjustment nut 305 is preferably hexagonal so that it can be easily rotated by a wrench.

  FIG. 2E is a plan view of the mounting plate 306. As shown in FIG. 2E, the mounting plate 306 has a sufficient area for mounting the legs of the solar cell mount 202.

  FIG. 2F is a plan view of the washer 307. As shown in FIG. 2F, the washer 307 has an inner hole 307A having a diameter larger than the outer diameter of the anchor bolt 308. The washer 307 has a size to be placed on the placement plate 306.

  The sheath tube 302 and the fixing plate 304 are fixed by welding or the like. The adjusting nut 305 is fixed to the adjuster bolt 303 by welding or the like. The adjuster bolt 303 has an outer diameter larger than that of the anchor bolt 308, and its length is longer than the predicted ground settlement.

  When the adjustment nut 305 is rotated, the adjuster bolt 303 fixed to the adjustment nut 305 is rotated. The adjuster bolt 303 is inserted into a fixed plate insertion hole 304A having an internal thread. Therefore, the adjuster bolt 303 can be moved up and down by the rotation of the adjuster bolt 303.

  3 is a cross-sectional view of the basic block 310 according to the application example, taken along line AA of FIG. 1 and a plan view of components. As shown in FIG. 3 (A), the foundation block 310 is fixed inside the foundation block 310, and has a cylindrical sheath tube 312 extending in the vertical direction, and is fixed to the upper end of the sheath tube 312 and has an internal thread. A fixing plate 314 having a fixing plate insertion hole 314A, an anchor bolt 313 having threading over the entire length, and being rotatably inserted into the insertion hole 314A of the fixing plate 314 and stored therein, A mounting plate insertion hole 316 </ b> A having a screw cut is provided, a mounting plate 316 that is rotatably inserted into the anchor bolt 313, and an annular washer 317 that is mounted on the mounting plate 316.

  The base block 310 has legs 310 </ b> L that store the anchor bolts 313. The foundation block 310 is made of concrete. The base block 310 may be integrally formed. The base block 310 may first form a base portion 311B on which the sheath tube 312 is placed, position the sheath tube 312 on the base portion 311B, and form the main body portion 311A with concrete.

  FIG. 3B is a plan view of the sheath tube 312. As shown in FIG. 3B, the sheath tube 312 has a cylindrical shape, and the internal space 312A is wide enough to accommodate the anchor bolt 313 in a rotatable manner.

  FIG. 3C is a plan view of the fixed plate 314. The fixing plate 314 is preferably embedded in the foundation block 310 to prevent rotation.

FIG. 3D is a plan view of the mounting plate 316. As shown in FIG. 3D, the mounting plate 316 is preferably hexagonal so that it can be easily rotated by a wrench. The mounting plate 316 has an area sufficient for mounting the legs of the solar cell mount 202.
The plan view of the washer 317 appears in the same manner as the plan view of the washer 307.

  The sheath tube 312 and the fixing plate 314 are fixed by welding or the like. The mounting plate 316 is rotatably inserted into the anchor bolt 313. The anchor bolt 313 has the same outer diameter as the anchor bolt 308, and its length is longer than the predicted ground settlement.

  The mounting plate 316 can be removed from the anchor bolt 313 by rotating. When the mounting plate 316 is removed from the anchor bolt 313, the anchor bolt 313 can be manually rotated, and the anchor bolt 313 can be moved up and down by the rotation of the anchor bolt 313.

FIG. 4 is a perspective view of the mold material 401. As shown in FIG. 4, the formwork 401 has a shape obtained by dividing a cylinder in the long axis direction. The mold material 401 is made of, for example, a resin such as vinyl chloride or cardboard.
The inner diameter of the mold material 401 is desirably larger than the placement plate 306 and the placement plate 316.

FIG. 5 is a perspective view of the temporary receiving plate 402. As shown in FIG. 5, the temporary receiving plate 402 has a notch 402A at the center.
The diameter of the notch 402A is larger than the outer diameter of the anchor bolts 308 and 313. The length of the temporary receiving plate 402 in the longitudinal direction is longer than the outer diameter of the formwork member 401.

FIG. 6 is a perspective view showing how to use the formwork material 401 and the temporary receiving plate 402. As shown in FIG. 6, the anchor bolts 308 and 313 are surrounded by two mold materials, and concrete 403 is poured therein. A temporary receiving plate 402 is stretched over the formwork material 401. Two temporary receiving plates 402 may be used.
Until the concrete 403 is solidified, the leg portion of the solar cell base 202 is placed on the temporary receiving plate 402.

  FIG. 7 is a view of the solar cell array 100 as viewed from the side. As shown in FIG. 7, a part of the foundation block 300 is embedded in the ground 700. In the solar cell module 201, the legs of the solar cell mount 202 are fixed to the anchor bolts 308 and 313 by nuts 320.

  FIG. 8 to FIG. 12 are diagrams illustrating measures to be taken when ground subsidence occurs. As shown in FIG. 8, the nut 320 is removed, and the solar cell module 201 is lifted by the crane using the wire 800.

  As shown in FIG. 9, the anchor bolts 308 and 313 are rotated and pulled out from the sheath tube 302 by the amount of ground subsidence.

  As shown in FIG. 10, the anchor bolts 308 and 313 are fixed by fitting a plurality of nuts 320 into the anchor bolts 308 and 313. Alternatively, the frame material 401 is combined, and concrete 403 is poured into the anchor bolts 308 and 313. Depending on the number of nuts 320 and the thickness of the concrete 403, the height can be finely adjusted.

  Further, after fine adjustment with the nut 320, the anchor bolts 308 and 313 may be surrounded by the frame material 401 and fixed with the concrete 403 while the nut 320 is attached.

  As shown in FIG. 11, after the concrete 403 is solidified, the solar cell module 201 is lowered, and anchor bolts 308 and 313 are inserted into the leg portions 202A.

  As shown in FIG. 12, the solar cell base 202 is fixed to the anchor bolts 308 and 313 by the nut 320.

  FIG. 13 is a view of the wide foundation block 300 </ b> W according to the first application example of the foundation block 300 as viewed in the direction of arrow X in FIG. 1. FIG. 14 is a view of the narrow basic block 300N according to the second application example of the basic block 300 as viewed in the direction of the arrow X in FIG.

  As shown in FIGS. 13 and 14, the width W1 of the legs 300L and 310L of the wide foundation block 300W is wider than the width W3 of the legs 300L and 310L of the narrow foundation block 300N. The width W2 of the hollow portion of the wide basic block 300W is narrower than the width W4 of the hollow portion of the narrow basic block 300N.

  The wide foundation block 300W has a high resistance to wind pressure when installed. The narrow foundation block 300N can be manufactured at low cost because it uses less concrete than the wide foundation block 300W.

  FIG. 15 is a plan view of the solar cell system 1500. In the solar cell system 1500, the solar cell array 100W using the wide basic block 300W is arranged at a portion directly affected by the wind, that is, the edge of the solar cell array 100 arranged in a shaded area, and the wide basic block is arranged. A solar cell array 100N using the narrow-width basic block 300N is disposed in a portion adjacent to the 300W leeward wide basic block 300W.

  It can also arrange | position so that the solar cell array 100N may be surrounded by the solar cell array 100W.

  As described above, the solar cell array 100 of the present embodiment includes the base blocks 300 and 310 having the anchor bolts 308 and 313 that can be moved up and down in the vertical direction. The battery mount 202 is fixed.

  Moreover, the solar cell system 1500 of this embodiment arrange | positions the solar cell array 100W which uses the wide foundation block 300W in the location which receives the influence of a wind directly, and arrange | positions the narrow foundation block 300N to the part which hits the lee of the wide foundation block 300W. The used solar cell array 100N is arranged.

  Therefore, there is an effect that the height of the solar cell array can be adjusted accurately and easily even if uneven ground subsidence occurs. Moreover, there exists an effect that the solar cell system 1500 provided with the resistance with respect to a wind pressure can be manufactured cheaply.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

100: solar cell array 201: solar cell module 202: solar cell mount 300: foundation block 302, 312: sheath tube 304, 314: fixing plate 303: adjuster bolt 305: adjustment nut 306, 316: mounting plate 308, 313: Anchor bolt

Claims (7)

Anchor bolts for fixing the solar cell mount to be placed;
A sheath tube that is fixed inside and stores the anchor bolt so as to be vertically movable;
A solar cell basic block comprising: The sheath tube is
A fixing plate having a fixing plate insertion hole whose inside is threaded,
The anchor bolt is
The solar cell base block according to claim 1, wherein the solar cell basic block has threading and is rotatably inserted into the fixed plate insertion hole. The sheath tube is
A fixing plate having a fixing plate insertion hole whose inside is threaded,
The anchor bolt is
An upper end of an adjuster bolt that has an outer diameter larger than the outer diameter of the anchor bolt, has a thread, has an adjustment nut fixed to a rotation shaft in common, and is rotatably inserted into the fixed plate insertion hole The solar cell basic block according to claim 1, which is fixed to the solar cell. A solar cell module;
A solar cell mount on which the solar cell module is placed;
A basic block for mounting the solar cell mount;
Anchor bolts for fixing the solar cell mount to the foundation block;
A sheath tube fixed inside the foundation block and storing the anchor bolt so as to be vertically movable;
A solar cell array comprising: The sheath tube is
A fixing plate having a fixing plate insertion hole whose inside is threaded,
The anchor bolt is
The solar cell array according to claim 4, wherein the solar cell array has threading and is rotatably inserted into the fixed plate insertion hole. The sheath tube is
A fixing plate having a fixing plate insertion hole whose inside is threaded,
The anchor bolt is
An upper end of an adjuster bolt that has an outer diameter larger than the outer diameter of the anchor bolt, has a thread, has an adjustment nut fixed to a rotation shaft in common, and is rotatably inserted into the fixed plate insertion hole The solar cell array of Claim 4 fixed to. A solar cell module; a solar cell frame on which the solar cell module is mounted; a first basic block on which the solar cell frame is mounted and having a leg portion having a first width; and the solar cell module A first solar cell array, comprising: an anchor bolt that is fixed to one foundation block; and a sheath tube that is fixed inside the first foundation block and stores the anchor bolt in a vertically movable manner;
The solar cell module; a solar cell base on which the solar cell module is placed; a second base block on which the solar battery base is placed and having leg portions having a second width narrower than the first width; An anchor bolt for fixing the solar cell mount to the second base block; and a sheath tube fixed inside the second base block and storing the anchor bolt so as to be vertically movable; A second solar cell array disposed adjacent to the first solar cell array;
A solar cell system comprising:

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