TW201831849A - Solar panel float - Google Patents

Abstract

Provided is a solar panel float such that deformation or breakage is less likely to occur. This float 10 is a solar panel float 10 with a solar panel 1 disposed thereon, and comprises: an annular float portion F which has a front face 11, a rear face 12 spaced apart from the front face 11, side faces 13 connecting the outer peripheries of the front face 11 and the rear face 12, and an opening 20 formed on the inside of the annular float portion and running from the front face 11 to the rear face 12; and a plurality of recessed portions 22 which are formed on at least a portion, in the peripheral direction, of the inner wall surface 21 of the opening 20 along the peripheral direction of the opening 20, and which extend in the front-rear direction.

Description

 Floating panel for solar panels  

The present invention relates to a floating plate for a solar panel.

Solar panels that convert sunlight into electrical energy use solar panels (also known as solar panels, solar modules). At present, solar panels are mainly installed on roofs or walls of buildings, floors, etc., but in recent years, they have also begun to be installed on unused water surfaces such as pools and lakes.

When a solar panel is placed on the water, a floating plate for floating the solar panel on the water is used, and a solar panel is placed on the floating plate. For example, a floating plate described in Patent Document 1 is known as a floating plate for arranging a solar panel on a water.

 Prior art literature    Patent literature  

Patent Document 1: Japanese Laid-Open Patent Publication No. 2015-217771

However, the floating plate provided on the water is, for example, a synthetic resin which is light in weight and excellent in durability, and is formed in a hollow shape to store a buoyant gas (air) therein. Further, for example, when the solar cell panel is pressed against the floating plate side due to the influence of wind or the like, the pressing force may cause a shift or breakage of a part of the floating plate. The present invention has been made in view of such circumstances, and an object thereof is to provide a floating plate for a solar cell panel which is less likely to be deformed or damaged.

The present invention can be grasped by the following constitution.

(1) The floating plate of the present invention is a floating plate for a solar cell panel in which a solar cell panel is disposed, and includes an annular floating plate portion having a surface portion and a back surface separated from the surface portion, and a concave portion a side portion that connects the surface portion and the outer circumference of the back surface portion, and an opening portion that is formed inside and penetrates from the surface portion to the back surface portion, and the concave portion is at least a portion of the circumferential direction of the inner wall surface of the opening portion A plurality of the opening portions are formed in the circumferential direction and extend in the front and rear directions.

(2) In the configuration of the above (1), the support portion that supports one end side of the solar cell panel is provided, and the support portion can support the support on the first side of the first side portion of the first side portion on the one end side. The first portion of the opening is connected to the intermediate portion of the inner wall surface in the front-rear direction, and the first end of the opening has the first portion that receives the support portion when the support portion is raised on the surface portion side. In the receiving portion of the side portion, the concave strip portion is formed at a position closer to the back side than the first side of the inner wall surface.

(3) In the configuration of the above (2), the concave strip portion is formed to have a shallow depth from the back surface portion side toward the first side edge.

(4) In the above configuration (2) or (3), the support portion includes a ridge portion that is formed to protrude from one end side toward the one end side when the surface portion side is raised, and The ridge portion extends in a direction substantially the same as the extending direction of the first side portion, and the ridge portion has an abutting surface that comes into surface contact with the surface portion of the annular floating plate portion when the support portion is raised on the surface portion side.

According to the present invention, it is possible to provide a floating plate for a solar cell panel which is less likely to cause deformation or breakage.

1‧‧‧ solar panels

1a‧‧‧ side wall

1b‧‧‧ side wall

10‧‧‧ floating board

11‧‧‧ Surface

11a‧‧‧ inclined section

11aa‧‧‧End

11b‧‧‧2nd wall

11A‧‧‧He end side bearing

12‧‧‧ Back part

13‧‧‧ Side section

14‧‧‧Support

14a‧‧‧1st side

14aa‧‧‧1st side

14b‧‧‧2nd side

14c‧‧‧3rd side

14ca‧‧‧face

14cb‧‧‧1st wall

14d‧‧‧4th side

15‧‧‧Rocks

16‧‧‧Longitudinal slot

17‧‧‧Acceptance Department

20‧‧‧ openings

21‧‧‧ inner wall

22‧‧‧ concave section

100‧‧‧ floating board

140‧‧‧Support

F‧‧‧Actual floating board

Fig. 1 is a perspective view showing a state in which a floating plate of an embodiment of the present invention is provided with a solar battery panel mainly from the other end side of the floating plate.

2 is a perspective view of a state in which a floating plate of an embodiment of the present invention is provided with a solar battery panel, mainly from one end side of the floating plate.

Fig. 3 is a perspective view of the floating plate according to the embodiment of the present invention as seen from the same direction as Fig. 1.

Fig. 4 is a perspective view showing a state of a back surface portion of a floating plate according to an embodiment of the present invention.

Fig. 5 is a side view of the floating plate according to the embodiment of the present invention as seen from the side.

Fig. 6 is a partial cross-sectional view showing a floating plate according to an embodiment of the present invention.

Fig. 7 is a perspective view showing a floating plate of a comparative example.

FIG. 8 is a view showing a change in load when a pressing force is applied to the support portion of the floating plate of the comparative example and the support portion of the floating plate of the embodiment.

Hereinafter, a mode for carrying out the invention (hereinafter referred to as "embodiment") will be described in detail with reference to the drawings. In the description of the entire embodiments, the same elements are denoted by the same reference numerals.

1 is a perspective view of the floating plate 10 provided with the solar cell panel 1 mainly viewed from the other end side of the floating plate 10. FIG. 2 is a perspective view of the floating plate 10 provided with the solar cell panel 1 mainly viewed from one end side of the floating plate 10. 3 is a perspective view of the floating plate 10 as seen from the same direction as that of FIG. 1. FIG. 4 is a perspective view of the side of the back surface portion 12 of the floating plate 10. Fig. 5 is a side view of the floating plate 10 as seen from the side. FIG. 6 is a partial cross-sectional view of the floating plate 10.

As shown in FIG. 1 and FIG. 2, the floating plate 10 of the embodiment of the present invention is a solar panel floating plate 10 in which the solar panel 1 is disposed, and is applicable, for example, to a solar panel on a water surface such as a reservoir, a pool, or a lake. 1.

In the description of the floating plate 10 of the present embodiment, some illustrations are omitted. For example, a connecting portion for connecting to the other floating plate 10 is provided on one end side and the other end side of the floating plate 10, When the floating plate 10 is installed on a water surface such as a reservoir, a pool, or a lake, a plurality of floating plates 10 are provided in a connected state.

The floating plate 10 described below is manufactured by, for example, a blow molding in which a cylindrical parison in a molten state is sandwiched by a plurality of split molds and blown, and various thermoplastic resins can be used as the molding material. For example, polyethylene or polypropylene can be preferably used. A polyolefin resin such as this.

As shown in FIGS. 3 and 4, the floating plate 10 is provided with an annular floating plate portion F having a surface portion 11, a back surface portion 12 separated from the surface portion 11, and a surface portion 11 and a back surface portion. The side surface portion 13 to which the outer circumference of the 12 is connected is formed on the inner side and penetrates from the surface portion 11 to the opening portion 20 of the back surface portion 12. Incidentally, the overall shape of the annular floating plate portion F of the present embodiment is a rectangle, but is not limited to a rectangular shape. Further, as shown in FIG. 2, the floating plate 10 is provided with a support portion 14 that supports one end side (the left side in FIG. 2) of the solar cell panel 1.

Specifically, the support portion 14 is constituted by a portion formed to block the opening portion 20 (refer to FIGS. 3 and 4), as shown in FIG. 3, to retain the first side portion 14a on the one end side on the right side of FIG. The side of the first side 14aa on the side of the back side portion 12 is such that the other side portions (the second side portion 14b, the third side portion 14c, and the fourth side portion 14d) are cut away, and the first side 14aa can be used. The hinge is formed such that a portion formed to block the opening portion 20 stands on the side of the surface portion 11. As shown in FIG. 3, the first side 14aa as the hinge is connected to the intermediate portion of the inner wall surface 21 of the opening 20 in the front-rear direction (in this example, a substantially central position).

6 is a partial cross-sectional view of the floating plate 10, and more specifically, an enlarged view of the periphery of the fourth side portion 14d on the back side of FIG. 3 (refer to the broken line region X), which is the support portion 14 taken along the line X1-X1 of FIG. A cross-sectional perspective view of one end side cut transversely to the other end side. As shown in FIG. 6, a receiving portion 17 is formed on one end side of the opening portion 20, and the receiving portion 17 receives the first side portion 14a of the support portion 14 when the support portion 14 stands up on the surface portion 11 side.

Therefore, when the first side 14aa of the hinge is bent and the support portion 14 is raised on the side of the surface portion 11, the first side portion 14a serving as the support portion 14 falls on the opening formed in the annular floating plate portion F. The state on the receiving portion 17 at the position on the one end side of the portion 20. In other words, the receiving portion 17 of the annular floating plate portion F is a portion that supports the support portion 14 when the solar cell panel 1 is placed.

Moreover, as shown in FIG. 3, the 3rd side part 14c of the support part 14 is formed in the shape of the substantially L shape of the receiving surface 14ca and the 1st receiving wall surface 14cb. In other words, when the support portion 14 is raised from the side of the surface portion 11 from the other end side (the left side of FIG. 3), the receiving surface 14ca receives the lower surface of the one end side of the solar cell panel 1, and the first receiving wall surface 14cb is provided at one end side of the receiving surface 14ca. The side wall 1a (see FIGS. 1 and 2) on the one end side of the solar cell panel 1 is received, whereby the one end side of the solar cell panel 1 can be stably received.

In addition, the solar cell panel 1 is fixed to the support portion 14 by using a first attachment fitting or the like in the following state. In other words, the lower surface side of the solar cell panel 1 is received by the receiving surface 14ca of the support portion 14, and the side wall 1a of the one end side of the solar cell panel 1 is received by the first receiving wall surface 14cb so that the solar cell panel 1 is not moved at one end side. status. In this regard, the illustration is omitted in FIGS. 1 and 2.

On the other hand, as shown in FIG. 3, the other end side receiving portion 11A is provided on the other end side of the annular floating plate portion F, and the other end side receiving portion 11A is formed with an inclined portion 11a and a second receiving wall surface 11b. The surface portion 11 of the inclined portion 11a is inclined so as to approach the side of the back surface portion 12 toward the other end side. The second receiving wall surface 11b rises from the end portion 11aa on the other end side of the inclined portion 11a, and receives the other end of the solar cell panel 1. Side wall 1b (see Figs. 1 and 2).

The inclined portion 11a provided on the other end side of the annular floating plate portion F can be configured such that when the solar battery panel 1 is disposed obliquely as shown in FIG. 1, the lower surface of the other end side of the solar battery panel 1 does not interfere with the annular floating The plate portion F can be arranged well.

In addition, as shown in FIG. 1, the solar cell panel 1 is arranged such that the side wall 1b of the solar cell panel 1 on the other end side abuts against the second receiving wall surface 11b (see FIG. 3), and a second mounting fitting (not shown) is used. It is fixed to the end side receiving portion 11A (see Fig. 3).

In addition, in order to set the solar cell panel 1 in an appropriate tilt state according to the environment in which the solar cell panel 1 is installed, the height of the support portion 14 described above is designed according to the installation environment (when the surface portion 11 side is raised) the height of).

In addition, in FIG. 1 and FIG. 2, when the wind or the like which is strongly pressed downward is blown to the solar cell panel 1, the support portion 14 is also pulled downward by the wind (the back portion 12 side of FIGS. 3 to 5). Strong push.

When the support portion 14 is raised on the side of the surface portion 11 as described above, the receiving portion 17 (see FIG. 6) that receives the first side portion 14a of the support portion 14 is also strongly pressed to the lower side (the side of the back portion 12), and the stress is applied. The portion of the dotted circle frame A shown in FIG. 3 (it should be noted that the angles on the opposite sides are also the same) may cause cracks or the like in the corner portion of the opening portion 20, or a portion on the lower side of the support portion 14 may occur. The support portion 14 is not sufficiently supported by bending.

Further, if a crack is generated, water may permeate into the annular floating plate portion F from the crack, and the buoyancy may be lowered, or the solar cell panel 1 may not be disposed in a correct posture. In addition, when the portion on the lower side of the support portion 14 is bent, the solar cell panel 1 cannot be provided in a correct posture.

Therefore, in the present embodiment, as shown in FIGS. 3 and 4, the position of the inner wall surface 21 of the opening 20 is closer to the side of the back surface portion 12 than the position at which the first side 14aa of the support portion 14 is connected. A plurality of concave strip portions 22 are formed in the circumferential direction of the opening portion 20, and the plurality of concave strip portions 22 are formed on the inner wall surface 21 of the opening portion 20, and extend in the front and rear directions, and function as reinforcing ribs.

In the present embodiment, as shown in FIG. 3, FIG. 4 and FIG. 6, in order to hold the first side 14aa of the support portion 14 that functions as a hinge in a linear shape, the concave portion 22 has a depth of the concave portion 22. It is formed in a shallow form from the side of the back surface portion 12 toward the first side 14aa.

Further, the groove portion 22 is formed to have the widest width on the side of the back surface portion 12 and to be smaller in width from the side of the back surface portion 12 toward the first side 14aa. Incidentally, in the present embodiment, the concave strip portion 22 has a shape along a partial outer shape of the truncated cone, but it is not essential.

In addition, since the recessed portion 22 functions as the reinforcing rib as described above, the rigidity of the inner wall surface 21 can be improved as compared with the case where the inner wall surface 21 is planar.

Therefore, even if the support portion 14 is strongly pressed toward the back surface portion 12 side, deformation of the inner wall surface 21 on the lower side (the back surface portion 12 side) of the support portion 14 can be suppressed, and since stress is suppressed, local stress concentration does not occur. At the portion where the stress is dispersed throughout, the crack generated at the corner of the opening portion 20 as described above can be effectively suppressed.

Further, in the present embodiment, as shown in FIG. 5, the support portion 14 is provided with a ridge portion 15 which is formed as one end side of the support portion 14 when the support portion 14 is raised on the side of the surface portion 11 (Fig. The right side of the fifth side is formed to protrude toward the one end side, and extends in substantially the same direction as the extending direction of the first side portion 14a (refer to FIGS. 3 and 4), and the ridge portion 15 has the support portion 14 on the surface portion. The abutting surface that is in surface contact with the surface portion 11 of the annular floating plate portion F when the side 11 is raised.

Therefore, when the support portion 14 is strongly pressed toward the back surface portion 12 side, the ridge portion 15 can disperse the pressing force, and the pressing force can be further dispersed throughout.

Further, in order to increase the rigidity of the support portion 14, the support portion 14 is formed with a plurality of longitudinal grooves 16 that function as reinforcing ribs and extend in the front and rear directions in the width direction of the support portion 14, so that the deformation of the support portion 14 itself It can also be suppressed together. As shown in FIG. 6, by providing the vertical groove 16 at a position corresponding to the concave portion 22, the load when the support portion 14 is pressed is transmitted to the groove portion 22 having increased rigidity, so that the pressure can be further suppressed. The inner wall surface 21 on the lower side (the side of the back surface portion 12) of the support portion 14 is deformed.

Hereinafter, the effects of the above configuration will be more specifically described. Fig. 7 is a view showing a floating plate 100 of a comparative example. The floating plate 100 is not provided with the concave strip portion 22 and the ridge portion 15, and has the same shape as the floating plate 10 of the present embodiment. In addition, FIG. 8 is a view showing a change in load when a pressing force is applied to the support portion 140 of the floating plate 100 of the comparative example and the support portion 14 of the floating plate 10 of the embodiment. In Fig. 8, the pressing amount (compression displacement [mm]) of the support portion 140 and the support portion 14 is taken as the horizontal axis, and the load [kN] measured at this time, that is, the force corresponding to the repulsive force is taken as the vertical axis.

As is apparent from Fig. 8, in the floating plate 100 of the comparative example, the load [kN] is lowered from the pressing amount (compression displacement [mm]) just over 7 mm, which indicates that the portion supporting the support portion 140 starts to bend.

On the other hand, in the floating plate 10 of the embodiment, the ups and downs of the load [kN] are observed somewhat, so there is a possibility that local bending occurs, but a load [kN] which is a force equivalent to the repulsive force can be observed. When the amount of pressing (compression displacement [mm]) reaches 25 mm, the state in which the support portion 14 is sufficiently supported can be maintained.

In the case where the support portion 14 is formed by erecting a portion formed by blocking the opening portion 20 (see FIGS. 3 and 4), the concave portion 22 is only provided. The inner wall surface 21 of the opening 20 is the lower side of the support portion 14 when viewed in the circumferential direction of the opening portion 20 (that is, the position closer to the back surface portion 12 than the support portion 14), and the support portion 14 is turned to the back portion. When the 12 side is pressed, the result of minimizing deformation and the like is also obtained.

Therefore, in the case where the support portion 14 is formed by erecting a portion formed by plugging the opening portion 20 (see FIGS. 3 and 4), the opening portion 20 is formed only on the inner wall surface 21 of the opening portion 20. The groove portion 22 is provided on the lower side of the support portion 14 (that is, at a position closer to the back surface portion 12 side than the support portion 14) when viewed in the circumferential direction.

On the other hand, since the gas (for example, air or the like) is enclosed in the annular floating plate portion F, the annular floating plate portion F itself repeatedly expands and contracts as the gas expands and contracts due to temperature difference between day and night. However, the follow-up property of the annular floating plate portion F at the time of contraction is inferior to that at the time of gas expansion.

Therefore, the annular floating plate portion F may be deformed for a long period of time, and the concave portion 22 may be provided in the entire circumferential direction of the inner wall surface 21 of the opening portion 20 in order to suppress such deformation preferentially. In this case, the resistance to the force of pressing the support portion 14 is also greatly improved as compared with the case where the concave portion 22 is not provided as in the floating plate 100 of the comparative example.

The present invention has been described above using the embodiments, but the technical scope of the present invention is not limited to the scope of the above embodiments. In the above-described embodiment, the support portion 14 is configured by a portion formed by blocking the opening portion 20 (see FIGS. 3 and 4), but it is not necessarily required to be used to plug the opening portion 20 (refer to FIG. 3 and The portion formed in the manner of FIG. 4) constitutes the support portion 14.

For example, a member as the support portion 14 may be separately formed, and the member as the support portion 14 may be attached to the annular floating plate portion F, or may be located closer to the one end side than the opening portion 20 of the annular floating plate portion F. The structure as the support portion 14 is integrally formed.

However, in the present embodiment, the support portion 14 is formed by a portion formed by plugging the opening portion 20 (see FIGS. 3 and 4), and there are many advantages such as high material utilization efficiency, and therefore the support portion 14 is preferably used for plugging. A portion formed by the opening portion 20 (see FIGS. 3 and 4) is formed.

In addition, in the case where the support portion 14 does not use a portion formed by blocking the opening portion 20 (see FIGS. 3 and 4), it is preferable to provide the opening portion 20. This is because the amount of gas (for example, air or the like) in the memory of the annular floating plate portion F can be reduced by providing the opening portion 20 in this manner, and accordingly, the expansion and contraction force of the gas due to the temperature difference between day and night can be reduced.

However, the gas in the memory of the annular floating plate portion F generates buoyancy for floating the floating plate 10 on the water surface. Therefore, the amount of gas that is reduced by providing the opening portion 20 naturally needs to be controlled in consideration of the weight of the solar battery panel 1. The degree of buoyancy that can float on the surface of the water.

Further, the floating plate 10 of the present embodiment can be suitably produced by blow molding as described above, but may be produced by a production method other than blow molding.

Therefore, those skilled in the art should understand that the floating plate 10 of the present invention is not limited to the above specific embodiments, and various modifications or improvements can be made thereto, and such modified or improved inventions are also included in the present disclosure. Within the technical scope of the invention.

Claims (4)

 A floating plate for a solar panel for arranging a solar panel, comprising an annular floating plate portion and a concave portion, wherein the annular floating plate has a surface portion and a back portion separated from the surface portion a side surface portion that connects the outer surface of the front surface portion and the back surface portion, and an opening portion that is formed inside and penetrates from the surface portion to the back surface portion, and the concave strip portion is on an inner wall surface of the opening portion At least a part of the circumferential direction is formed in a plurality of circumferential directions of the opening, and extends in the front and back directions.    The floating plate according to claim 1 further includes a support portion that supports one end side of the solar cell panel, and the support portion can be located on the first side of the first side portion on the one end side on the side of the back surface portion The support portion is connected to the intermediate portion in the front and back directions of the inner wall surface so as to rise on the surface portion side, and a receiving portion is formed on one end side of the opening portion, and the receiving portion is configured to support the support portion The first side portion of the support portion is received when the surface portion is raised, and the concave portion is formed at a position closer to the back surface side than the first side of the inner wall surface.    The floating plate according to claim 2, wherein the concave strip portion is formed to have a shallower depth from the back surface side to the first side.    The floating plate according to claim 2, wherein the support portion is provided with a ridge portion that is formed to protrude from one end side toward the one end side when the surface portion side is raised, and Extending in the same direction as the extending direction of the first side portion, the ridge portion has an abutting surface that floats with the annular shape when the supporting portion is erected on the surface portion side The surface of the plate portion is in surface contact.