JP6727527B2 - Solar cell module - Google Patents

Description

The present invention relates to a solar cell module that does not interfere with farming as much as possible during the farming season in fields and the like.

The present inventor has previously proposed a power generation facility suitable for power generation in a field or the like without hindering farming (Patent Document 1: JP-A-2016-15865). According to this, the solar cell panel can be installed at a position higher than the ground by a predetermined distance to generate electricity.
JP, 2016-15865, A

The present inventor studied further improvements and devised a solar cell module capable of further improving power generation efficiency. More specifically, the present invention intends to provide a technology that can generate power during the farming season without hindering farming and further increase power generation efficiency during the non-farming season.

A solar cell module according to a first aspect of the present invention includes a main panel having a main light receiving surface, a sub panel having a sub light receiving surface, and one side edge of the sub panel foldable with respect to one side edge of the main panel. It has a hinge to connect, the hinge is closed, the main light-receiving surface directly receives sunlight from above, and the sub-light receiving surface receives the reflected light from below, and the hinge opens and the main light receiving Both the surface and the sub-light-receiving surface are configured so as to be capable of taking an open position for directly receiving sunlight from above.

With this configuration, the solar cell module is set to the folding position during the farming season. That is, with the hinge closed, the main light-receiving surface of the main panel directly receives sunlight from above and mainly generates electricity. On the other hand, the sub-light-receiving surface of the sub-panel receives the reflected light from the lower side, and secondarily generates electric power. According to a trial calculation by the present inventor, about 110% of power can be generated as compared with power generation by only the main panel.

On the other hand, the solar cell module is set to the open position during the non-farming season. As a result, both the main light receiving surface and the sub light receiving surface directly receive sunlight from above. As a result, according to a trial calculation by the present inventor, about 150% of electric power can be generated as compared with the electric power generated by only the main panel.

Furthermore, the solar cell module according to the first aspect of the present invention includes a pair of support beams that respectively support one side edge and the other side edge of the main panel at a position higher than the ground by a predetermined distance that does not hinder agricultural work, and an open position. In, the method further includes an adjacent support beam or a support plate that supports the other side edge of the sub panel at a position higher than the ground by a predetermined distance.

As a result, the main panel and the sub panel can be held in a stable posture in both the folded position and the open position.

In the solar cell module according to the second invention, in addition to the first invention, at least a part of the pair of support beams and the adjacent support beams includes a main beam, and a guide rail group provided in two stages on the main beam. A main panel is slidably mounted on each of the guide rail groups.

With this configuration, the two main panels can be slid with respect to the guide rail group to be in a position where they overlap each other and a position where they do not overlap each other. Particularly, in the positions where they do not overlap with each other, the two main panels receive light to the same degree, and the amount of power generation can be doubled.

According to the present invention, it is possible not only to perform power generation without hindering farming such as rice planting and rice harvesting, but also to improve power generation efficiency and double the amount of power generation in both the folded position and the open position. it can.

(Embodiment 1)
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1A is a side view (folded position) of the solar cell module according to Embodiment 1 of the present invention, and FIG. 1B is a side view (open position) of the solar cell module.

As shown in FIG. 1A, the present solar cell module has a main panel 1 and a sub panel 2 as core members.

The main panel 1 has a main light receiving surface 1a, and the sub panel 2 has a sub light receiving surface 2a. In the present embodiment, the main panel 1 and the sub-panel 2 are made of the same solar cell panel, but the sub-panel 2 can be changed to be slightly smaller than the main panel 1.

On the lower side of the main panel 1 (the side opposite to the main light receiving surface 1a), the upper surfaces of the frame bodies 3 and 4 made of a pair of cloth plates are fixed.

On the other hand, the opposite sides of the sub light-receiving surface 2a of the sub panel 2 are superposed on the lower surfaces of the frame bodies 3 and 4, and on the frame body 3 side, the hinges 5 allow the sub panel 2 to move to the frame body 3 (that is, the main panel). One side edge of 1) is foldably connected.

Here, as shown in FIG. 1A, when the present solar cell module is in the folding position, the main panel 1 and the sub panel 2 are in a back-to-back positional relationship, and the sub panel 2 is above the main panel 1. Fits within the projected area from.

The main light receiving surface 1a of the main panel 1 is supported upward so as to directly receive sunlight. Therefore, when in the folded position, the sub light receiving surface 2a of the sub panel 2 faces downward, and the sub light receiving surface 2a receives reflected light from below.

On the other hand, when the hinge 5 is opened to the maximum extent, the main light receiving surface 1a and the sub light receiving surface 2a are parallel to each other and both the main light receiving surface 1a and the sub light receiving surface 2a are from above as shown by the solid line in FIG. It becomes the open position where it receives the sunlight of directly.

Further, as shown by the wavy line in FIG. 1B, it is possible to take an intermediate position between the folded position and the open position, and particularly at the intermediate position where the sub panel 2 hangs vertically downward, the sub light receiving surface 2a also. , Vertically downward, and the sub light receiving surface 2a is orthogonal to the main light receiving surface 1a.

(Embodiment 2)
FIG. 2A is a side view (folded position) of the solar cell module according to Embodiment 2 of the present invention, and FIG. 2B is a side view (open position) of the solar cell module.

The second embodiment differs from the first embodiment in that square pipes are used as the frame bodies 3'and 4'. The rest is the same as in the first embodiment.

(Operations of Embodiments 1 and 2)
The operation of the solar cell module according to the first and second embodiments will be collectively described below.

FIG. 3 is a perspective view (intermediate position) showing a support state by the support beam group of the present invention, and FIG. 4 is a perspective view (open position) showing the support state by the support beam group.

Although only the core portion of the solar cell module has been described above, the present solar cell module includes a support beam group in addition to the core portion.

As shown in FIG. 3, this support beam group includes a pair of support beams 10 and 11 for supporting one side edge and the other side edge of the main panel 1 at a position higher than the ground by a predetermined distance, and an open position. Further provided is an adjacent support beam 11 or a support plate that supports the other side edge of the sub panel 2 (the side edge opposite to the hinge 5) at a position higher than the ground by a predetermined distance.

By using such a support beam group, the main panel 1 and the sub panel 2 can be held in a stable posture at both the folded position and the open position.

The support beam groups 10 to 12 are optional as long as they can support the main panel 1 and the sub panel 2 at a position higher than the ground by a predetermined distance without hindering agricultural work. For example, as in Patent Document 1, it is also possible to use a pipe having a wire inside. Further, as used in other agricultural power generation, a pedestal for constructing a pillar beam using a temporary material, a single pipe (for example, a diameter of 48.6 mm), or a shaped steel may be used.

At the intermediate position, as shown in FIG. 3, the sub-light-receiving surface 2a is in a vertically downward position, but the power can be generated with considerably higher efficiency than the power generation using only the main panel. However, if the sub-light-receiving surface 2a is simply hung and not supported, the sub-panel 2 may be hit by a strong wind and become dangerous.

Therefore, the present invention is basically based on using either the folding position shown in FIGS. 1A and 2A or the open position shown in FIG.

That is, during the farming season, the solar cell module is in the folded position, and the main light receiving surface 1a and the sub light receiving surface 2a are back to back. That is, with the hinge 5 closed, the main light-receiving surface 1a of the main panel 1 directly receives sunlight from above and mainly generates electricity.

On the other hand, the sub-light-receiving surface 2a of the sub-panel 2 receives the reflected light from below and secondary-generates power. According to a trial calculation by the present inventor, about 110% of power can be generated as compared with power generation by only the main panel.

When doing this, it is more convenient if the ground is a paddy field. This is because the water stretched over the paddy fields replaces the mirror and the reflected light becomes stronger. In addition, when the rice grows, the rice itself can serve as a reflective material, and it can be expected to generate electricity.

On the other hand, during the non-farming season, as shown in FIG. 4, the solar cell module is in the open position. By doing so, both the main light-receiving surface 1a and the sub-light-receiving surface 2a are parallel to each other and directly receive sunlight from above. As a result, according to the calculation by the present inventor, when the sub-panel is of the same scale as the main panel, the amount of power generation is about double during the non-farming season, and about 160% is generated annually. The amount increases.

As described above, at any of the folding position, the intermediate position and the open position, the efficiency exceeding the power generation efficiency by only the main panel 1 is obtained, which is extremely advantageous in practical use. As the amount of power generation increases, the income from power sales increases and the power generation cost decreases.

In addition, it has been confirmed by the inventor that the structure described in Patent Document 1 is adopted and sufficient strength can be supported even if the number of solar cell panels is increased. According to the right configuration, the solar cell module can be easily moved up and down. When the wire is combined with a machine such as a winch, it can be moved more quickly and easily. Further, when the sub panel 2 is rotated, the work can be easily performed without providing a temporary scaffold or a standing horse.

(Embodiment 3)
FIG. 5(a) is a side view (before sliding) of the solar cell module according to Embodiment 3 of the present invention, and FIG. 5(b) is a side view (after sliding) of the solar cell module.

The third embodiment differs from the first embodiment in the configuration of the pair of support beams 10', 11' and the adjacent support beam 12' and in that the number of main panels 1 is increased to two. The rest is the same as in the first embodiment. The configurations of the pair of support beams 11' and the adjacent support beam 12' are different from each other only in the direction of the pair of support beams 11'. Therefore, only the pair of support beams 10' will be described below.

As shown in FIG. 5A, the pair of support beams 10 ′ includes a main beam 20 provided with hooks 20 a at both ends, a guide rail 21 provided on one step of the main beam 20, and a guide rail 21. The guide rail 22 is provided one step above.

Here, the configurations of the main beam 20, the hinge 5, and the sub panel 2 are the same as those in the first embodiment. However, in the third embodiment, the main panels 1 (two in total) are slidably mounted on the two upper and lower guide rails 21 and 22, respectively.

Therefore, as shown in FIG. 5A, when the two main panels 1 are positioned so as to overlap with each other directly above the sub panel 2, the upper main panel 1 receives the light but the lower main panel 1 Almost no light is received. If you need to get a stronger light downwards during the farming season, this condition is recommended.

However, when it is desired to increase the amount of power generation even during the farming season, or during the non-farming season, as shown in FIG. 5B, the two main panels 1 are moved in the directions of arrows N1 and N2 (opposite directions to each other). It is advisable to slide them so that both of the two main panels 1 receive light in substantially the same manner. The sliding direction may be reversed from that shown in FIG.

(Operation of the third embodiment)
The operation of the solar cell module according to the third embodiment will be described below.
6 is a perspective view (intermediate position, before sliding) showing a supporting state by the supporting beam group of the present invention, and FIG. 7 is a perspective view (open position, after sliding) showing a supporting state by the supporting beam group of the present invention. is there.

As described above, in the third embodiment, the two main panels 1 can be slid. Therefore, when the sub-panel 2 is at the intermediate position in the state shown in FIG. 5A, the state shown in FIG. 6 is obtained.

On the other hand, as shown in FIG. 5B, when the two main panels 1 are slid so as not to overlap each other and the sub panel 2 is in the open position, the state shown in FIG. 7 is obtained.

Comparing FIG. 7 with FIG. 4, it will be understood that almost twice as many main panels 1 will receive light. Thereby, according to the third embodiment, the amount of power generation can be further increased.

According to the third embodiment, the following advantages are further obtained. Regarding the wind, when the wind is a strong wind such as a typhoon, it is preferable to return the expanded or inverted panel to the folded position and to leave a space between the panels. This makes it easier for the wind to escape, and the power generation equipment can be maintained even in strong winds.

Further, according to the third embodiment, it becomes easy to deal with the nature of the crop. That is, not only can the amount of power generation be adjusted by flipping or sliding the panel, but the actual amount of the panel can be adjusted according to the type of agricultural products produced under the panel, and the sunlight required by the agricultural products can be secured. .. For example, when producing crops that require a relatively large amount of sunlight, such as rice, stack the panels as much as possible during the farming season to secure more sunlight, and during the non-farming season, install panels. It is good to expand to the maximum and increase the amount of power generation. Also, when producing tamariu, tamariu is strong in the shade, so it is good to expand the panel as much as possible throughout the year to generate electricity. Furthermore, when producing tea, it is necessary to adjust the shade and shade according to the season, so it is advisable to appropriately adjust the size of the panel to be deployed according to the season.

(A) Side view of the solar cell module according to Embodiment 1 of the present invention (folded position) (b) Side view of the same solar cell module (open position) (A) Side view of the solar cell module according to Embodiment 2 of the present invention (folded position) (b) Side view of the same solar cell module (open position) Perspective view showing the supporting state by the support beam group of the present invention (intermediate position) The perspective view (open position) which shows the support state by the support beam group of this invention. (A) Side view of a solar cell module according to Embodiment 3 of the present invention (before sliding) (b) Side view of the same solar cell module (after sliding) Perspective view showing a supporting state by the support beam group of the present invention (intermediate position, before sliding) A perspective view showing a supporting state by a supporting beam group of the present invention (open position, after sliding)

1 main panel 1a main light receiving surface 2 sub panel 2a sub light receiving surface 3, 3', 4, 4'frame body 5 hinges 10, 11, 10', 11' pair of support beams 12, 12' adjacent support beam 20 main beam 20a Hook 21, 22 Guide rail

Claims (2)

A main panel having a main light-receiving surface,
A sub panel having a sub light receiving surface,
A hinge that foldably connects one side edge of the sub panel to one side edge of the main panel,
A folding position in which the hinge is closed, the main light-receiving surface directly receives sunlight from above, and the sub-light receiving surface receives reflected light from below,
The hinge is opened, and both the main light-receiving surface and the sub-light-receiving surface are configured to be able to take an open position for directly receiving sunlight from above,
A pair of support beams that respectively support the one side edge and the other side edge of the main panel at a position higher than the ground by a predetermined distance that does not interfere with agricultural work,
The solar cell module further comprising an adjacent support beam or a support plate that supports the other side edge of the sub panel at the position higher than the ground by the predetermined distance in the open position. At least a part of the pair of support beams and the adjacent support beams,
Main beam,
A guide rail group provided in two stages on the main beam,
The solar cell module according to claim 1, wherein the main panel is slidably mounted on each of the guide rail groups so that the main panels can be placed at a position where they overlap each other and a position where they do not overlap each other.

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