JP2016063612A - Cradle for solar cell modules - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cradle for solar cell modules by which end portions of a module can be easily aligned with each other, a number of modules can be supported stably and construction is facilitated.SOLUTION: In a cradle 10 for solar cell modules, a number of rectangular modules M are supported while being arrayed longitudinally and laterally so as to form an inclined plane that is down forwards. The cradle includes: a plurality of studs 11 on which modules M are placed; legs 12 such as a plurality of support posts 13 and 14 and braces 16 and 17 supporting the studs 11; and a concrete foundation 19 in which lower ends of the support posts 13 and 14 are fixed. The studs 11 are installed at intervals corresponding to a length B1 of a short side of the module M, and one supporting crosspiece 11 holds two modules M and M which are neighboring to each other, in the vicinity of edges of long sides thereof in parallel.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mount for a module of a solar cell. More specifically, the present invention relates to a platform for a module of a solar cell used in a so-called mega solar, which has a large number of modules and generates a large amount of power.

  A large number of solar cell modules are densely arranged in order to increase the amount of power generation, which increases the lifting force due to weight and wind. And in order to fully support these forces, high strength and rigidity are required for the gantry supporting a large number of modules. Furthermore, it is required to reduce the number of parts and reduce the number of construction steps and the construction period. As a gantry satisfying such a demand, for example, the gantry of Patent Document 1 has been proposed.

  The frame of the solar cell module of Patent Document 1 holds a receiving bar so that it is inclined forward and downward with a short front pillar and a long rear pillar, and two receiving bars are arranged in parallel, and the two receiving bars are arranged in parallel. On top, the solar cell module is mounted in a horizontally long state. The interval between the two receiving bars is shorter than the length of the solar cell module, and the right and left ends of the solar cell module are overhanging from the receiving bar.

  On the other hand, Patent Document 2 discloses a frame in which the same frame as in Patent Document 1 is arranged in multiple rows on the left and right. This frame is constructed so that the vertical frame or horizontal frame can be folded, and is folded at the time of shipment from the factory so that it can be easily assembled locally.

  Patent Document 3 describes an example of a similar gantry in which modules are arranged vertically. Patent Document 4 discloses an example in which a support similar to that of Patent Document 3 is configured so that the interval between the support members can be freely adjusted.

JP 2014-129709 A JP 2014-88695 A JP 2011-132780 A JP 2007-35849 A

  Supporting one module with a pair of receiving bars has an advantage that it can be supported efficiently and stably. However, the end and the height of the overhanged module tend to vary, and it is relatively difficult to arrange the edges of adjacent modules in an orderly manner. In addition, since the supporting struts, braces, or stays that support the receiving bars are provided for each receiving bar, arranging a large number of two pairs of bars increases the number of parts, making the construction work complicated, and the construction period There is also a problem that extends.

  The present invention provides a pedestal for a module of a solar cell that can easily align end portions of adjacent modules, can stably support a large number of modules, has a small number of components, and is easy to construct. This is a technical issue.

(1) A platform for a solar cell module according to the present invention is a platform for a solar cell module that supports a plurality of rectangular modules arranged vertically and horizontally, and a plurality of support bars on which the modules are mounted; A plurality of support legs that support the support bars, the support bars are installed at intervals corresponding to the length of the short side of the module, and one support bar is adjacent to each other It is characterized in that the vicinity of the edge of the long side of the module is held in parallel.

(2) In such a gantry, it is preferable that the support beam is a vertical beam arranged to be inclined in the front-rear direction and supports the module in a vertically long state.

(3) In the above-described gantry in which the modules are vertically arranged with the vertical bars inclined forward and backward, the support bars have a top surface on which the vicinity of the side edge of the adjacent module is placed and are arranged at the lower end. What has the latching | locking part engaged with a module is preferable.

(4) Furthermore, in any of the above-mentioned mounts, the upper ends of the plurality of support legs are pivotally connected to the support bar, and are folded before the assembly so as to be elongated along the support bar. What is assembled by connecting the lower ends of these support legs is more preferable.

(1) Since the platform for the module of the solar cell of the present invention holds the edges of two adjacent modules side by side with one support bar, the edges of the adjacent modules can be arranged in an orderly manner. .
When a large number of modules are arranged, one module is supported by one support bar. Therefore, the number of parts of the support legs such as the members constituting the support bars and the support pillars supporting the support bars is reduced, and the construction work is also simplified. Further, since the support bar supports the long side of the module, the module can be reliably supported.

(2) In such a gantry, the support bars are vertical bars arranged to be inclined in the front-rear direction. When the module is supported in a vertically long state, the left and right side edges can be held evenly. Therefore, it can support more stably. Furthermore, since the heights of the long sides of the left and right modules are aligned, it can be arranged more neatly.

(3) In the gantry in which the module is arranged vertically, the support bar includes a top surface on which the vicinity of the side edge of the adjacent module is placed, and a locking portion that engages with the module arranged at the lower end. In the case where it is provided, the lowermost module can be supported by the locking portion, and the modules arranged thereon can be aligned with reference to the upper end of the lower module. Therefore, the module can be temporarily held before being fixed to the support bar, and installation work is facilitated. In addition to the left-right direction, alignment in the vertical direction is also easy.

(4) In any one of the mounts, upper ends of the plurality of support legs are rotatably connected to a support bar, and are folded before the assembly so as to be elongated along the support bar. By connecting the lower ends of these support legs together, what can be assembled can be saved in space by folding the support legs so that they overlap the support bar during storage and transportation, and can be easily assembled at the construction site. it can.

FIG. 1 is a perspective view showing an embodiment of a module mount according to the present invention. 2a and 2b are a plan view and a side view of the gantry of FIG. 1, respectively. FIG. 3 is a rear view of the gantry of FIG. FIG. 4 is an enlarged view of a main part showing the column and the vertical rail of FIG. 5a and 5b are side views showing the folded state and the unfolded state of the vertical beam and the supporting leg. FIG. 6 is an enlarged view of a main part of the vertical beam and the module.

A gantry 10 shown in FIG. 1 includes sub-vertical vertical bars 11 that are arranged in parallel with each other and inclined forward and at equal intervals, and support legs 12 that support the vertical bars. In this gantry 10, the modules M are arranged vertically, and the interval P between adjacent vertical bars 11 is set to the width (short side length B1) of one module M, and from the width B1. Slightly wide. Thereby, the side edge part of the long side of the module M can be mounted in the inner part of the two vertical bars 11.
In the present embodiment, the inclination angle of the front descending is 10 ° with respect to the horizontal. The inclination angle is 20 ° or less, and preferably 10 ° to 15 °. The inclination angle may be larger than 20 °. Further, the gantry 10 to which the module M is attached may be horizontal or may be erected vertically.

  In the module M, for example, the power generation unit is surrounded by a metal frame W such as aluminum (see FIG. 6). The frame usually has a smooth side peripheral surface. In general, the outer shape is a rectangle. A square or other shapes may be used.

  The length L of the vertical beam 11 depends on the number of modules M arranged vertically. That is, the length (long side) B2 of one module is set to be a multiple of the number of arranged modules or a length close thereto. In this embodiment, as shown in FIG. 2a, the size is set to about 3 to 4 times so that four modules M can be placed in front and rear. In one module M, four screw holes S or through holes formed in the peripheral frame W are fixed to the vertical beam 11 with four screws, bolts, nuts, and the like. The screw hole S is a long side portion of the frame W, and is formed at a position closer to the center from the end portion.

  As shown in FIG. 2b, the front part of the frontmost (lowest position) module protrudes to the front side from the front end of the vertical rail 11, and is in an overhanging state. Similarly, the rear part of the rearmost (high position) module protrudes rearward from the rear end of the vertical rail 11. The support legs 12 described above are provided with a low column 13 for supporting the front side of the vertical beam 11 and a high column 14 for supporting the rear side, so that the vertical beam 11 is inclined forward and downward. The inclination angle varies depending on the latitude where the module is installed. In the low latitude region, the angle is gentle due to the high altitude of the sun, and the angle is steep in the high latitude region. In this embodiment, diagonal braces 16 and 17 for maintaining the angle between the column 14 and the vertical beam 11 are interposed between the front and rear of the rear high column 14 and the vertical beam 11. These front and rear braces 16 and 17 support tension, and thin rods or bars are used.

The lower end of the column 13 is fixed to a concrete base 19 with a hole-in anchor 18 or the like. Further, there is a gap between the front strut 13 located at the end and the front strut 13 adjacent thereto, and between the rear strut 14 located at the end and the rear strut 14 adjacent thereto, as shown in FIG. As shown in FIG. 2, the braces 20 and 21 are connected to each other by slanting right upwards. Then, the third front and rear support columns 13 and 14 and the support columns 13 and 14 adjacent to the third support column 13 and 14 from the end where one is placed are connected to each other by braces 22 and 23 that are inclined downward to the right. There is no diagonal brace between the second and third columns.
In addition to the hole-in anchor, a chemical anchor or the like may be used. Furthermore, you may use the pile called a brand name GT spiral pile (patent 3023583). In that case, you may fix a support | pillar directly to the ground, without providing the concrete foundations 19 and / or 19 either.

On the other hand, all adjacent struts are connected by stays 24 extending in the horizontal direction. Front and rear struts, braces, braces, stays, etc.
The support leg 12 which supports is comprised. The weight of the module M is supported by the left and right vertical rails 11, and their weight is supported by the front and rear columns 13, 14 and transmitted to the concrete foundation 19. The braces 16, 17, the places 20, 21, 22, 23 and the stay 24 are reinforcing members for allowing the columns 13, 14 to stand vertically and in parallel to each other.

  As shown in FIG. 4, in this embodiment, the vertical beam 11 in the middle portion has two groove steels (C channel members) 25 arranged back to back, and a bracket 26 for connecting the support column 14 between them. It has the form combined with. The bracket 26 is made of a steel plate or the like, and is formed in, for example, a substantially rectangular shape as shown in FIG. The web portions of the two channel steels 25 and the bracket 26 are fastened and fixed with two bolts. The upper end of the bracket 26 can be protruded from the upper surface of the vertical beam 11 to serve as a guide for the module M or left and right partitions. In the portion where the bracket 26 is not provided, the two groove steels 25 are fastened with a spacer interposed between the two groove steels 25.

Returning to FIG. 4, the side edges of two adjacent modules M are respectively placed on the upper surface of one of the two groove steels 25. However, the vertical beam 11 (see FIG. 3) at the end is composed of only one grooved steel 25, and only the side edge of the first module M is placed thereon. As shown in FIG. 6, a locking claw 27 that engages with the vicinity of the lower end of the module M is formed by cutting and raising at the front end of the grooved steel 25 constituting the vertical beam 11.

  The lower part of the bracket 26 and the support column 14 are coupled with one bolt. A base receiver 18a made of L-shaped steel or the like is connected to the lower end of the column 14 with a bolt, and the above-described hole-in anchor 18 is passed through the base receiver. The support column 14 is provided with, for example, a C-shaped steel with a lip.

  As shown in FIGS. 5a and 5b, the upper ends of the support columns 14 and the braces 16 and 17 are connected to the bracket 26 with bolts, but the bolts are in a temporarily tightened state at the factory shipment stage. The members are pivotable. As a result, the support columns 13 and 14 and the braces 16 and 17 can be folded along the vertical rail 11. In addition, the back support | pillar 14 and the back brace 17 are attached to the other side on both sides of the bracket 26, as shown to FIG. 5a. Therefore, it does not interfere even in the folded state.

  At the construction site, as shown in FIG. 5 c, the lower end of the back column 14 and the lower ends of the front and rear braces 16, 17 are connected and assembled into a flat unit U as a whole. Furthermore, a large number of the planar units U can be arranged in parallel as shown in FIGS. 2A and 3, and adjacent struts can be connected by braces 20, 21, 22, 23 and stays 24 so that they can be assembled three-dimensionally. (See FIG. 1).

  For example, the frame W of the module M as a whole surrounds the side peripheral surface of the panel-shaped power generation unit of the module as a whole, and has a substantially U-shaped section at the upper end. The frame W is divided into a short side portion and a long side portion. In FIG. 6, the short side part 28 of the frame W is shown, and the long side part is removed. The short side portion 28 is a hollow member, and joint portions 28a and 28a for joining to the long side portion are provided on the inner wall surface forming the hollow. The long side portion closes the opening of the end portion of the short side portion 28 and is connected to the joint portions 28a, 28a from above via a fastener such as a bolt. The notch shown with the code | symbol 28b of the short side part 28 is a site | part which a long side part is faced | matched and connected.

  The locking claw 27 engages with an upper short side portion 28 (specifically, a protruding portion 29). For this reason, the module M is locked to the upper surface of the channel steel 25 and does not slide down the inclined surface.

Next, a method for placing the module M on the gantry 10 will be described. First, the module M at the lower end (first stage) is placed on the upper surface of the grooved steel 25 constituting the vertical beam 11. At that time, the locking claw 27 is engaged with the short side portion 28 above the frame W of the module M. This prevents it from slipping down.
Then, the lower side peripheral surface of the frame W of the second-stage module M is abutted against and locked to the upper side peripheral surface of the frame W of the first-stage module M.
Further, the third and fourth modules M are abutted against and locked to the lower module M in the same manner as the second module.
Finally, a fastener such as a bolt is inserted into the hole S, and each module M is fixed to the vertical rail 11 and held.
It should be noted that the module M may be fixed with bolts one step at a time, or at appropriate times, instead of fastening with bolts at the end.

  In the above-described embodiment, the modules M are arranged vertically, but can be arranged horizontally. In that case, the side edge of the long side of the module M which adjoins up and down with the horizontal rail arrange | positioned in parallel is hold | maintained. The horizontal rail is attached so that its top surface is inclined forward and downward. In this case, it is preferable to provide a temporary placing piece or a guide piece for shifting the module in the left-right direction on the upper surface of the horizontal rail. An intermediate bracket 26 between the two groove steels 25 in FIG. 4 can be projected from the upper surface of the groove steel to form a temporary placing piece or a guide piece.

  In the above-described embodiment, the vertical rail 11 is a grooved steel, but it can be a grooved steel with a lip, an L-shaped steel, a square pipe, or the like. In the embodiment, each member is fastened by a fastener such as a bolt and a nut, but can be joined by welding such as spot welding or brazing.

The locking claw 27 can be formed separately on the vertical beam and the horizontal beam, and can be fixed with a bolt or the like.
Furthermore, although the latching claw 27 is latching the short side part 28, you may latch by the notch etc. which were formed in the long side part.

10: frame 11: vertical beam 12: support leg M: module W: frame P: interval between vertical beams B1: length of short side of module B2: length of long side S: screw hole 13: front column 14 : Back struts 16 and 17: Brace 18: Hole-in anchor 18 a: Base receiver 19: Concrete foundation 20, 21: Brace 22, 23: Brace 24: Stay 25: Bracket 26: Channel steel 27: Locking claw 28: Short Side part 28a: Joint part 28b: Notch

Claims (4)

A platform for a module that supports and arranges a number of rectangular solar cell modules vertically and horizontally,
A plurality of support bars for mounting the module;
And a plurality of support legs for supporting those support bars,
The supporting bars are installed at intervals corresponding to the length of the short side of the module, and one supporting bar is used to hold the vicinity of the edge of the long side of two modules adjacent to each other in parallel. Module mount.   The frame for a solar cell module according to claim 1, wherein the support bar is a vertical bar arranged to be tilted forward and backward, and supports the module in a vertically long state.   The module for a solar cell according to claim 2, wherein the support bar includes a top surface on which the vicinity of a side edge of an adjacent module is placed and a locking portion that engages with a module disposed at a lower end. Pedestal.   The upper ends of the plurality of support legs are pivotally connected to the support bars, and are folded before the assembly and extend along the support bars so that the lower ends of the support legs are connected to each other. The gantry for the module of the solar cell according to any one of claims 1 to 3, wherein the module is assembled.

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