JP2013219174A - Solar cell rack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent snow accumulation on a solar cell module during a snowfall period from December to March in a solar cell frame provided by tilting a solar cell module between struts erected at intervals. Provided is a solar cell mount that can reliably prevent the occurrence of power generation.
SOLUTION: In a solar cell frame provided by tilting a solar cell module 22 between struts 5 erected at intervals, the solar cell module 22 is inclined toward the sun except during the snowing period, During the snowfall period, the installation angle of the solar cell module 22 can be changed vertically to prevent snow accumulation on the solar cell module 22.
[Selection] Figure 3

Description

  The present invention relates to a gantry used for installing a solar cell module, and more particularly to a fence-like solar cell gantry capable of changing the installation angle of a solar cell module.

  Solar cells are attracting attention from the viewpoint of the global environment, and are spreading. Solar cell modules are usually fixed on an inclined surface that faces the sun because more light hits them, so it is common to install a pedestal to incline them on flat roofs and flat ground. .

  Various types of solar cell mounts such as trapezoidal shapes and fence shapes have been proposed depending on the installation location, and various types of solar cell mounts that can change the inclination angle of the solar cell module according to the solar altitude that changes depending on the season have been proposed. ing.

  As an example of a fence-shaped solar cell mount, JP 2005-126930 A discloses a plate-shaped solar cell that is inclined upward along the extending direction of the fence in the vicinity of the upper end of the extended fence. A plate-like solar cell is shown as a power generation fence whose inclination angle can be changed.

  In this power generation fence, the plate-like solar cell is provided with an inclination, so that the plate-like solar cell can be installed in the direction in which the light receiving efficiency of sunlight is high, and high power generation efficiency can be obtained. It is preferable that the inclination angle of the plate-like solar cell can be changed, so that the inclination angle of the plate-like solar cell can be set in the direction in which the sunlight receiving efficiency is high during installation, and the power generation efficiency can be further increased It is said.

  In addition, as an example in which a solar power generation device is provided on a snow fence that is mainly installed along a side edge of a road or a track, in Japanese Patent No. 3958518, snow protection is provided between columns arranged at predetermined intervals. A plate is mounted and attached, and a solar cell panel is fitted on one side which is the upper surface of the snow protection plate, and a frame is provided around the snow protection plate. In the frame, on the left and right edges of the snow protection plate A horizontal axis is formed on the provided vertical frame, and the snow protection plate can be rotated around the horizontal axis, and a plurality of snow protection plates are arranged at equal intervals in the vertical direction between the columns. A snow fence with a solar power generation device is shown in which the snow protection plates are rotated in the same angle in synchronism with the vertical movement of the rods formed on the line.

  In this snow fence with solar power generation device, the snow fence is tilted and mounted over the southeast surface, so both the action of blowing off snow at that angle and the action of receiving sunlight efficiently can be obtained, so the angle is fixed. However, the height of the sun changes according to the season, so it is desirable to adjust to the optimum angle in order to increase power generation. In addition, the power generated by solar cells can be used for self-emission such as surrounding lighting, guide plates necessary for traffic guidance or line-of-sight guidance for roads, or selling power to power companies. Is made. Even during the snowy season, power generation capacity is created when there is no snow on the solar panel, so the power can be used to melt the ice or to prevent fogging of the mirror surface, which has become unsightly due to condensation. It is also good to be used.

JP 2005-126930 A Japanese Patent No. 3958518

  In the technology of the above-mentioned Patent Document 1, the inclination angle of the plate-like solar cell is changed by the rotating means so that the intensity of sunlight is maximized within the movable range, and the power generation efficiency is taken into consideration. However, it has not been shown to prevent snow on the module in snowy areas. If it is snowing without wind, it will snow on the slanted solar cell module and will not generate electricity at all.

  Similarly, in Patent Document 2, it is shown that the installation angle of the translucent plate containing the solar cells is made vertical in order to aim at the effect of the blowing fence, but means for preventing snow accumulation on the solar cell panel. Is not shown at all. In order to reliably prevent snow accumulation on the solar cell module, it is desirable that the installation angle of the solar cell module be vertical, but it is not shown in the embodiment whether it is possible.

  In addition, when the generated power is used for self-luminous lighting such as surrounding lighting and traffic guidance, if no power is generated during the snowing season, it is necessary to rely on external power supply.

  Therefore, in the present invention, in the solar cell mount provided by extending the solar cell module in an inclined manner between the pillars standing at intervals, the solar cell module is connected to the solar cell module at the time of snowfall from December to March. An object of the present invention is to provide a solar cell mount that can prevent snow accumulation and prevent power generation from being stopped.

  In order to solve the above-mentioned problems, the solar cell mount of the invention according to claim 1 is a solar cell mount in which the solar cell module 22 is provided so as to be tilted between the support columns 5 standing at intervals. The solar cell module 22 is tilted toward the sun except during the snowing season, and the installation angle of the solar cell module 22 can be changed vertically during the snowing season to prevent snow accumulation on the solar cell module 22.

  According to the invention according to claim 1, since the installation angle of the solar cell module 22 provided so as to be freely tilted can be changed vertically during the snowfall period, snow does not accumulate on the solar cell module 22, Even if the efficiency is low, it can generate electricity by receiving direct sunlight or reflected light from snow.

  Moreover, since it is possible to prevent the generation of electricity throughout the year, it is possible to install lighting lights and traffic guide lights that match the amount of electricity generated during the snowfall period without relying on external power.

FIG. 1 is a front view of the solar cell mount according to the first embodiment. FIG. 2 is a right side view of FIG. 3 is a cross-sectional view taken along the line AA of FIG. FIG. 4 is a partially enlarged view showing a support portion of the solar cell panel 20 of FIG. FIG. 5 is a view taken in the direction of arrow B in FIG. FIG. 6 is a front view showing a state in which the installation angle of the solar cell module according to Example 1 is changed vertically. FIG. 7 is a right side view of FIG. 8 is a cross-sectional view taken along the line CC of FIG. 6 showing the main part of FIG.

  The installation angle of the solar cell module is used to prevent power generation due to snow accumulation during the snowfall period in a solar cell frame that is installed by tilting the solar cell module between the columns that are erected at intervals. It was realized by making it possible to change the vertical.

  Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 shows a solar cell mount 1 according to Embodiment 1 of the present invention.

  The solar cell pedestal 1 shown in this embodiment is a pedestal for installing a solar cell module in a fence shape mainly in a space such as a flat ground or a side edge of a road, such as a pedestal pedestal provided with four leg members. Compared to the above, the height is high, and a large amount of solar cell modules can be installed in a small space. Hereinafter, the fence surface shown in FIG. 1 will be described as the front and front where the sunlight hits, and the opposite side as the rear.

  Under the ground G, a concrete foundation F serving as a foundation for the support pillar 5 is buried, and the pair of support pillars 5 are fixed vertically on the concrete foundation F. The strut 5 is configured by vertically providing a main pillar 5a having a high height and a reinforcing strut 5b having a height about half of the main pillar 5 at a distance from the front, and connecting the two with four flat plates. This is because when the solar cell module is arranged in a fence shape, a load due to wind is received, and thus the base portion of the support column 5 needs to be strengthened. Further, a base plate is provided at the lower end of the support column 5 and is fixed to the concrete foundation F by an anchor, and a spacing member 6 is provided at the upper end to connect the support columns 5 to fix the width. In the present embodiment, the height from the ground G to the upper end of the column 5 is 3250 mm, and the interval between the columns 5 is 2350 mm.

  Inside each of the left and right main pillars 5a, there is provided a rod-like panel mounting arm 10 that is supported by a pin so as to be pivotable around the upper end. As shown in FIG. 3, the panel mounting arm 10 is a long bar that extends from near the upper end of the main column 5a to slightly above the lower end, and the lower end of the panel mounting arm 10 moves in the form of a link provided in the front-rear direction from the main column 5a. The fixed bar 11 and the arm support bar 12 are connected. The arm support bar 12 is pivotally supported on the front side in the vicinity of the lower end of the panel mounting arm 10 and on the rear side in the vicinity of the front end of the fixing bar 11, and is provided with fixing holes 12a and 12b in the middle. deep. Similarly, when the fixed bar 11 is pivotally supported by a bracket provided on the main pillar 5a and the fixed bar 11 and the arm support bar 12 are linked, the panel mounting arm 10 moves in the front-rear direction. If the panel mounting arm 10 is tilted or changed into a vertical state and bolts are inserted in the left and right directions into the fixing holes 12a and 12b and fixed through the support column 5, the movement of the panel mounting arm 10 is fixed.

  Between the left and right panel mounting arms 10, the solar cell panel 20 is provided across two upper and lower stages. The solar cell panel 20 mainly includes an attachment frame 21 serving as a support frame and two solar cell modules 22 attached thereto.

  The mounting frame 21 is formed by welding steel beam members with a cross-section bent into a C shape or L shape into a horizontally long rectangular frame shape, and a vertical beam is provided in the middle in the left-right direction. The module 22 is fixed. In this embodiment, the solar cell modules 22 having a size of the mounting frame 21 of 1240 mm in length, 2020 mm in width, 1210 mm in length and 1008 mm in width are mounted side by side.

  A vertical piece 21a is provided at the left and right ends of the mounting frame 21 so as to protrude rearward up and down, and a horizontal support shaft 21b is provided through the vertical pieces 21a on the middle rear side of the upper and lower sides of the mounting frame 21, The left and right ends of the support shaft 21b protrude slightly outside the vertical piece 21a.

  As shown in FIG. 4, on the inner side of the pair of panel mounting arms 10, there is provided a vertical vertical locking plate 10 a having a U-shaped cutout, and the protruding portion of the support shaft 21 b is formed as a U-shaped cutout. The entire solar cell panel 20 including the support shaft 21b is pivotally supported. Then, on the left and right sides of the dropped part of the support shaft 21b, a ring 21c that prevents it from coming off is fixed, and a bolt 10b is provided through the panel mounting arm 10 so as to intersect the axis of the support shaft 21b. Prevent withdrawal.

  With the above-described configuration, the solar cell panel 20 is rotatably provided between the panel mounting arms 10 in two upper and lower stages. And the upper connection bar 23 and the lower connection bar 24 which connect the edge part vicinity of the up-and-down vertical piece 21a are provided, respectively. The upper connecting bar 23 and the lower connecting bar 24 are pivotally connected to the upper and lower vertical pieces 21a by pins or the like at the upper and lower ends, respectively, and the tilt angle is changed by connecting the upper and lower solar cell panels 20 in a parallel state. Even so, the parallel state is maintained.

  In the vicinity of the upper end of the vertical piece 21 a of the lower solar cell panel 20, a restriction bar 25 is provided in connection with the column 5. The regulation bar 25 is also fixed to each with a pin or the like so as to be rotatable in the vicinity of both ends, and the upper position of the lower solar cell panel 20 is regulated by the length of the regulation bar 25.

  By configuring as described above, as shown in FIGS. 4 and 8, it is possible to tilt the upper and lower solar cell panels 20 while maintaining the parallelism, or to change the angle until it becomes vertical. The solar cell panel 20 can be fixed in an inclined state by using the fixing hole 12b of the support bar 12, and fixed in the vertical state by the fixing hole 12a.

  Next, the operation when the solar cell module is changed from the tilted state to the vertical during the snowfall period from December to March will be described.

  When the bolt of the fixing hole 12b of the arm support bar 12 is pulled out to release the fixing and the front end of the fixing bar 11 is moved upward, the rear side of the connected arm support bar 12 moves upward, The lower part of the connected panel mounting arm 10 swings backward. The upper side of the lower solar cell panel 20 and the support column 5 are connected by a regulation bar 25, and the upper side of the solar cell panel 20 is pushed forward because the panel mounting arm 10 swings backward, and changes vertically. To do.

  Since the upper solar cell panel 20 is held in parallel by the links of the upper connection bar 23 and the lower connection bar 24, the upper and lower solar cell panels 20 rotate in conjunction with each other until a vertical installation angle is obtained. The arm support bar 12 and the fixing bar 11 are completely folded. When the bolt is inserted into the fixing hole 12a and fixed to the support column 5, the solar cell panel 20 can be fixed in a vertical state.

  As described above, when the solar cell panel 20 is fixed in a vertical state, snow does not accumulate on the solar cell module 22. For this reason, it is possible to prevent the generation of power by hitting sunlight or reflected light from snow even during the snowfall, and no power generation at all. Conversely, during periods other than the snowing season, the solar cell module may be tilted toward the sun to improve the power generation efficiency. To change from the vertical to the tilted state, the reverse procedure described above may be used.

  The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the gist. For example, in the first embodiment, an example in which the solar cell module is installed between the pair of support columns 5 is shown. However, the support columns are continuously connected at a predetermined interval, and the solar cell modules are respectively installed between the support columns to extend (installation length). A) It may be installed longer in the direction.

  In addition, an example in which the solar cell module is provided in two upper and lower stages has been shown, but it may be three or more in the same manner as the upper connecting bar 23 and the lower connecting bar 24 are connected. If the solar cell module is fixed in parallel with the inclination between the mounting arms 10, the panel mounting arm can be tilted, so that it can be tilted or changed to a vertical installation angle.

  Moreover, although the example which provided two fixing holes 12a and 12b in the arm support bar 12 was shown, you may adjust the installation angle of a solar cell module by changing the position of a hole, The number may be increased and changed in multiple stages.

  Moreover, although the example which always changed the solar cell module vertically during the snowfall period from December to March was shown, it may be changed only during snowfall during the snowfall period. It may be automatically changed to vertical by detecting snow cover.

5 props
22 Solar cell module

Claims (1)

In the solar cell stand provided with the solar cell module spanning between the pillars erected with an interval between them,
During the snow season, the solar cell module is tilted toward the sun,
A solar cell stand that allows the installation angle of the solar cell module to be changed vertically during the snowfall period and prevents snow accumulation on the solar cell module.

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