TWI707111B - Floating installation mount for photovoltaic panel - Google Patents

Abstract

A floating installation mount for photovoltaic panel according to the present invention includes a buoyant body floating on the water surface and a mount unit for installing a photovoltaic panel at a position above the buoyant body, the mount unit supporting the photovoltaic panel such that at least a part of an inner side surface of the photovoltaic panel is exposed, and a light reflecting portion being formed on an upper surface of the buoyant body to make the reflected light of the sunlight be incident to the inner side surface of the photovoltaic panel by reflecting the irradiated sunlight.

Description

Stand for installation on water of solar power generation panel

The present invention relates to a stand for installing solar power panels on water.

In the past, solar power generation systems using solar energy have been widely known under the background of energy shortages or suppression of carbon dioxide emissions, and solar power generation devices that use solar panels to receive sunlight to generate power are becoming popular. In addition, in recent years, water-installed solar power generation devices that can be installed on the water surface of the ocean, lakes and marshes, storage ponds, fish ponds, etc. have rapidly begun to spread, thereby ensuring the expansion of the installation area of solar power plants.

In connection with this, Patent Document 1 proposes a technology that is easy to maintain and can be used for a long period of time in a power generation device that performs solar power generation on water such as a pond, without reducing the cost of production or maintenance.

[Prior Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Application Publication No. 2014-139032

Furthermore, in recent years, a so-called double-sided light-receiving type solar power generation panel using two-sided light-receiving type power generating elements that can receive light from both sides of the front and back, and generating electricity by receiving light from both sides of the front and back, has begun to be used. The double-sided solar power generation panel system has the following advantages: using both sides to introduce sunlight, it can obtain a larger power generation than the single-sided solar power generation panel of the same size. However, in fact, a water-mounted solar power generation device that can effectively utilize the above-mentioned advantages of the double-sided solar power generation panel has not yet been proposed.

The present invention was developed in view of the above-mentioned problems, and its purpose is to provide a stand for installing solar power panels on water with solar power generation panels on both sides as light-receiving surfaces, which can increase the power generation capacity. To increase the technology.

In order to solve the above-mentioned problems, the present invention adopts the following means.

That is, the present invention is a stand for installation on water of a solar power generation panel, which is used to install a solar power generation panel with two light receiving surfaces on the water, and the stand for installation on water of the solar power generation panel has: buoyancy The body is floating on the surface of the water; and the stand part is located above the buoyant body, and the solar power generation panel is arranged; the stand part is such that at least a part of the back side of the solar power generation panel is exposed, Support the aforementioned solar power generation panel, A light reflecting part is formed on the upper surface of the buoyant body, and the light reflecting part reflects the irradiated sunlight so that the reflected light of the sunlight is incident on the back side of the solar power generation panel.

According to the present invention, at least a part of the back side of the solar power generation panel is exposed, and the sunlight irradiated with the light reflecting part is reflected and the reflected light is incident on the back side of the solar power generation panel. Based on this, the amount of light received on the back side of the solar power generation panel can be increased. As a result, it is possible to increase the amount of power generation in the water-borne solar power generation using the double-sided solar power generation panel.

Furthermore, the aforementioned light reflection part may have an inclined surface inclined with respect to the horizontal plane. According to this, more reflected light from the upper surface of the buoyant body can be led to the back side of the solar power generation panel, and as a result, the power generation can be increased.

Furthermore, the aforementioned light reflection part may be formed by including shell powder. According to this, the light reflecting part reflects sunlight by using the shell powder. Since the shell powder is derived from natural products, it can reduce the load on the aquatic environment.

Furthermore, the present invention may also be that the frame part has: a frame body on which the solar power generation panel is installed; and a connecting body that connects the frame body to the buoyant body; the frame body is relatively The rotation of the connecting body enables the posture of the solar power generation panel to be switched between a use posture and a standing posture that is more upright than the aforementioned use posture. Accordingly, the operator can easily check the back side of the solar power generation panel by setting the posture of the stand body to the upright posture.

Furthermore, the stand portion may also have an installation structure in which the solar power generation panel is installed by supporting the opposite side ends of the solar power generation panel. Therefore, the area of the shielded portion on the back side of the solar power generation panel can be suppressed to be small. As a result, in a solar power generation panel with two light-receiving surfaces, the amount of light received on the back side can be ensured, and the amount of power generation can be increased.

According to the present invention, it is possible to further increase the amount of electricity generated in the water installation stand for the solar power generation panel installed on the water with both sides as the light receiving surface.

1‧‧‧Vertical Frame

2‧‧‧Horizontal skeleton

3‧‧‧Buoy body (buoyant body)

3a‧‧‧Shell

3A‧‧‧First Buoy Body (Shell)

3B‧‧‧Second Buoy Body

4‧‧‧The base body

5‧‧‧Pillar connecting member

6: Bearing frame connection member (shaft member)

6a: Rotating shaft

7: Installation tool

10: Stand for water installation

20: Solar power generation panel

20a: surface side

20b: back side

31: Buoy body

32: Anti-slip part

33: Link

41: Pillar

41a: Screw shaft

41b: Snap protrusion group

42: bearing skeleton

42a: bearing hole

43: Track member

43a: lower wall of the ditch

43b: groove sidewall

43c: upper wall of ditch

51: fixed part

52: support film

52a: gap

52b‧‧‧Kahegou Group

61‧‧‧Fixed part

62‧‧‧Shaft support

62b‧‧‧Abutting Tugou Group

71‧‧‧Clamping member

72‧‧‧Clamping member

73‧‧‧Giving Potential Energy Component

74‧‧‧Fixed bolts

100‧‧‧Install solar power generation device on water

200‧‧‧Installation structure

321‧‧‧Anti-slip protrusion

321a‧‧‧Top surface

431‧‧‧Guiding ditch

432‧‧‧Placement Department

433‧‧‧Clamping member locking piece

721‧‧‧Abutment Department

721a‧‧‧Upper surface abutment part

721b‧‧‧Side end surface abutment part

722‧‧‧Restricted Department

731‧‧‧Elastic Sheet

1000‧‧‧Power Generation System

L1‧‧‧Light path

L2‧‧‧Light path

N‧‧‧Nut

S‧‧‧Panel back space

X‧‧‧Extension direction of horizontal frame 2

Y‧‧‧Extending direction of longitudinal frame 1

Figure 1 is an overall perspective view of a solar power generation device installed on water in the embodiment.

Fig. 2 is an X-direction view of the solar power generation device installed on water in the embodiment.

Figure 3 is a diagram showing the installation structure of the photovoltaic power generation panel of the embodiment.

Figure 4 is a diagram showing the state where the solar power generation panel is installed on the stand.

Figure 5 is a diagram showing the pillar connecting member of the embodiment.

Figure 6 is a diagram showing the load-bearing frame connection member of the embodiment.

Figure 7 is a diagram showing the stand body in the upright position.

Figure 8 is an overall perspective view of the buoy body of the embodiment.

Figure 9 is a view showing the A-A section of Figure 8.

Fig. 10 is a diagram for explaining the power generation method of the solar power generation device installed on water in the embodiment.

Fig. 11 is a diagram showing a water-installed solar power generation system as an example of use of the water-installed solar power generation device of this embodiment.

Next, the embodiments of the present invention will be described based on the drawings. The following description is an example, and the present invention is not limited to the following content.

[Overall structure]

Fig. 1 is an overall perspective view of a solar power generation device (hereinafter also referred to as a power generation device) 100 installed on water according to the embodiment. FIG. 2 is a view of the power generating device 100 in the X direction.

As shown in Figures 1 and 2, the power generation device 100 is provided with: a stand 10 for installation of solar power panels on water (hereinafter referred to as "stand 10"); and is installed in a state of standing up as an appropriate tilt angle The solar power generation panel 20 of the stand 10. The power generation device 100 is installed on the water of the ocean, lakes and marshes, storage ponds, fish ponds, etc.

[Solar Power Generation Panel]

First, the solar power generation panel 20 will be described. As shown in Figs. 1 and 2, the photovoltaic power generation panel 20 of this embodiment is formed in a substantially rectangular plate shape. "Solar power generation panels" are also called solar panels or solar cell modules. In general, a photovoltaic power generation panel is formed in a plate shape with a power generating element (silicon oxide unit) enclosed between a front side protection member and a back side protection member. Here, in this specification, the "lower surface (back side)" of the solar power generation panel 20 refers to the surface on the side facing the water surface when it is installed on the stand 10. The "upper surface (front side)" of the solar power generation panel 20 refers to the surface on the side opposite to the water surface when it is installed on the stand 10.

The solar power generation panel 20 of this embodiment uses two-side light-receiving type power generating elements that can receive light from both sides of the front and back as the power generation elements, and is constructed with a glass plate with high transparency based on the front and back protection members. , To use the so-called double glass structure that receives light on both sides of the front and back to generate electricity. The solar power generation panel 20 of this embodiment can also be referred to as a double-sided light-receiving type (also called a double-sided power generation type) solar power generation panel with both front and back surfaces as light-receiving surfaces. This double-sided light-receiving type solar power generation panel uses both sides to introduce sunlight, so it can obtain a larger amount of power generation than a single-sided power generation type solar power generation panel of the same size.

Here, the solar power generation panel has a tendency to decrease the power generation efficiency when the surface temperature exceeds a predetermined temperature. Since the double-sided light-receiving solar power generation panel has a larger power output than the single-sided light-receiving solar power panel of the same size, the surface temperature tends to be higher than that of the single-sided solar power generation panel. The power generation device 100 can reduce the surface temperature of the solar power generation panel by the cooling effect of the water surface, so it is particularly effective for solar power generation using a double-sided light-receiving solar power generation panel.

[shelf]

Next, the gantry 10 will be described. The stand 10 is for installing the solar power generation panel 20 on the water stand. The gantry 10 has: a pair of longitudinal frames 1 and 1 arranged in parallel with each other at a predetermined interval on a horizontal plane; and extending in a direction orthogonal to the extending direction of the longitudinal frame 1, separated by a predetermined distance A plurality of horizontal frames 2 erected on the vertical frame 1 at intervals. As shown in FIG. 1, by connecting the vertical frame 1 with the horizontal frame 2, the frame of the stand 10 is formed. Here, the extending direction of the horizontal frame 2 is referred to as the X direction, and the direction orthogonal to the X direction when viewed from the upper surface, that is, the extending direction of the vertical frame 1 is referred to as the Y direction. In the power generation device 100 of this embodiment In this case, the solar power generation panel 20 is installed so as to be inclined with respect to the Y direction. Here, in the Y direction, the direction in which the solar power generation panel 20 is inclined downward is referred to as the "+Y direction".

The gantry 10 further has: a pair of vertical frames 1, 1 supporting both ends, and a pair of buoy bodies 3, 3 arranged at predetermined intervals in the Y direction and floating on the water surface; supported on the pair of vertical frames 1, 1, and the gantry body 4 is set up so as to sandwich a pair of buoy bodies 3 and 3 between each other. The buoy body 3 and the gantry body 4 are connected by the longitudinal frame 1. The longitudinal frame 1 corresponds to the "connected body" of the present invention. In addition, the structure including the frame body 4 and the vertical frame 1 corresponds to the "frame part" of the present invention. In the gantry part, a solar power generation panel 20 is installed at a position higher than the buoy body 3. The gantry 10 further has: a pair of pillar connecting members 5, 5 installed at positions opposite to each other of the pair of longitudinal frames 1, 1; and a pair of pillar connecting members 5, 5 installed from the longitudinal frame 1 toward +Y A pair of load-bearing skeleton connecting members 6 and 6 are separated from each other. In detail, as described later, the gantry body 4 is connected to the vertical frame 1 via the pillar connecting member 5 and the load-bearing frame connecting member 6.

The buoy body 3 is a member for obtaining the buoyancy of the power generation device 100 on the water surface. The buoy body 3 of this embodiment can also be used as an operator's pedal. The operator uses the buoy body 3 as a pedal to install or check the solar power generation panel 20. The gantry 10 of the present embodiment can also use the buoy body 3 as a work pedal, and is arranged so that the solar power generation panel 20 and the buoy body 3 do not overlap when viewed from the upper surface. As shown in Fig. 1, the buoy body 3 is installed by horizontally erecting on the vertical frame 1. The buoy body 3 has a substantially rectangular parallelepiped shape, and is mounted on the mount 10 so that two opposing surfaces are orthogonal to the X direction. The buoy body 3 is formed by filling the inside of the outer shell 3a mainly made of a non-metallic material such as a resin material with high weather resistance (for example, fiber reinforced plastic) with foamed resin. The outer shell 3a also constitutes the outer surface of the buoy body 3. And, the buoy The body 3 floats on the water surface, and a part of the buoy body 3 protrudes below the longitudinal frame 1 and is located in the water, so that buoyancy acts on the power generating device 100. In addition, the upper surface of the buoy body 3 is approximately the same height as the upper surface of the longitudinal frame 1, or is slightly above. In addition, on the upper surface of the buoy body 3, there is formed an anti-slip portion 32 that performs an anti-slip function when the operator uses the buoy body 3 as a pedal. The buoy body 3 is equivalent to the "buoyant body" of the present invention. In addition, the buoy body 3 also functions as the "light reflection part" of the present invention. In addition, the buoy body 3 of this embodiment can increase the power generation capacity of the power generation device 100. The details of the buoy body 3 will be described later.

The main body 4 of the stand supports the solar power generation panel 20 with an appropriate tilt angle. As shown in Figs. 1 and 2, in the gantry body 4, a solar power generation panel 20 is installed at a position above the buoy body 3. The gantry body 4 has: a pair of pillars 41, 41, which are erected on the longitudinal frame 1 via the pillar connecting member 5; a pair of load-bearing frames 42, 42 which are arranged to extend parallel to the Y direction, and have one end side It is connected to the top of the pillar 41, and the other end side is connected to the longitudinal frame 1 via the load-bearing frame connection member 6; a pair of rail members 43, 43 are arranged to extend in parallel to the X direction at a predetermined interval in the Y direction The aspect is horizontally erected on a pair of supporting frameworks 42 and 42; and an installation tool 7 for fixing the solar power generation panel 20 to the rail member 43.

As shown in Fig. 1, in the power generation device 100 of this embodiment, the solar power generation panels 20 opposite to each other are placed on the upper surfaces of the pair of rail members 43, 43. The rail member 43 and the mounting tool 7 clamp the ends of the solar power generation panel 20 on both sides, whereby the solar power generation panel 20 is installed on the stand 10.

Here, the mount main body 4 of the present embodiment has an attachment structure 200 of a structure for attaching the solar power generation panel 20. Figure 3 shows the solar power generation of this embodiment A diagram of the installation structure 200 of the panel. In addition, FIG. 4 is a diagram showing a state where the solar power generation panel is installed, and is a cross-sectional view when a cross-section perpendicular to the extending direction of the rail member 43 is cut. As shown in FIG. 3, the mounting structure 200 of this embodiment is comprised including the guide groove 431 and the mounting part 432 formed in the rail member 43, and the mounting tool 7. As shown in FIG.

As shown in FIG. 3, the guide groove 431 is a groove that opens toward the upper surface of the rail member 43 and extends along the extending direction of the rail member 43. As shown in Figure 4, the guide groove 431 is formed by the groove bottom wall 43a forming the bottom of the groove, the groove side walls 43b, 43b extending upward from both ends of the groove bottom wall 43a, and the gap between the groove side walls 43b, 43b A pair of groove upper walls 43c and 43c whose upper ends are opposed to each other are formed. In addition, at the opening edge of the guide groove 431, clamping member locking pieces 433 and 433 are formed to protrude upward.

In addition, the placing portion 432 constitutes a flat surface that forms the upper surface of the rail member 43 and extends along the guide groove 431. As shown in FIG. 3, the mounting portion 432 is formed by a flange protruding outward in the width direction of the rail member 43, and the solar power generation panel can be mounted on the mounting portion 432. The rail member 43 is provided with a pair of mounting portions 432 and 432 with the guide groove 431 interposed therebetween.

As shown in FIG. 3, the attachment tool 7 is comprised including the engaging member 71, the clamping member 72, the potential energy providing member 73, and the bolt 74 for fixing.

As shown in FIG. 4, the engaging member 71 is inserted into the guide groove 431 and used. The engaging member 71 is located at any position in the extending direction of the guide groove 431, and can be inserted into the guide groove 431, and is formed in a manner that can freely slide in the guide groove 431. Thereby, the mounting tool 7 can be installed at any position in the extending direction of the rail member 43. In addition, the engaging member 71 is engaged with the upper walls 43c and 43c of the groove forming the guide groove 431. By making the engaging member 71 and the groove In the engagement of the upper wall 43 c, the clamping member 72 connected to the engagement member 71 is provided on the rail member 43.

As shown in FIG. 4, the potential energy imparting member 73 is installed and used on the engaging member 71. The potential energy imparting member 73 is an elastic piece 731 having a groove lower wall 43a of the guide groove 431. By causing the elastic piece 734 to impart potential energy to the groove lower wall 43a, the engaging member 71 imparts potential energy to the groove upper wall 43c to maintain the engagement between the engaging member 71 and the groove upper wall 43c.

As shown in FIG. 4, the clamping member 72 is used as an engaging member 71 connected in the guide groove 431 via a fixing bolt 74. The fixing bolt 74 is a so-called cap bolt (a bolt with a hexagonal hole). The clamping member 72 is provided in such a manner that it faces the placing portion 432 outside the guide groove 431. The clamping member 72 is provided with an abutting portion 721 that abuts the photovoltaic power generation panel 20 placed on the placement portion 432 and a pair of restricting portions 722 and 722 that abuts the placement portion 432. The abutting portion 721 further includes an upper surface abutting portion 721 a that abuts on the upper surface of the solar power generation panel 20, and a side end surface abutment portion 721 b that abuts on the side end surface of the solar power generation panel 20. The contact portion 721 is formed of rubber. The clamping member 72 pushes the upper surface of the end portions on both sides of the photovoltaic power generation panel 20 by the upper surface abutting portion 721a. In addition, the clamping member locking pieces 433 and 433 formed on the rail member 43 are clamped by the pair of restriction portions 722 and 722 to restrict the clamping member 72 from moving in the width direction of the rail member 43.

As shown in Fig. 4, the solar power generation panel 20 is supported from below by the mounting portion 432, and is clamped by the upper surface abutting portion 721a of the clamping member 72 and the mounting portion 432 of the rail member 43 The side end of the solar power generation panel 20 is attached to the stand 10. Since the mounting portion 432 is extended along the guide groove 431, it can support substantially the entire area of the side end of the solar power generation panel 20. With this, it is possible to fully ensure the supporting surface of the solar power generation panel 20 Therefore, the solar power generation panel 20 can be stably supported. As a result, deflection of the photovoltaic power generation panel 20 can be suppressed. In addition, since the contact portion 721 is formed of rubber, it is possible to suppress breakage of the glass plate of the photovoltaic power generation panel 20 caused by pressing, or to absorb the expansion of the glass plate.

Furthermore, the mounting structure 200 supports the solar power generation panel 20 by placing the side end of the solar power generation panel 20 on the mounting portion 432 extending along the guide groove 431. Thereby, as shown in FIG. 1, the solar power generation panel 20 can be supported so that the solar power generation panel 20 does not cross the rail member 43. Therefore, since the photovoltaic power generation panel 20 is supported by the gantry 10 at both side ends, at least a part of the back side surface 20b of the photovoltaic power generation panel 20 is exposed. In particular, compared with a structure in which the solar power generation panel 20 is supported by straddling the rail member 4, the area of the back side 20b of the solar power generation panel 20 that is shielded by the rail member 43 can be reduced. As a result, in the double-sided light-receiving type solar power generation panel 20 whose front and back sides are light-receiving surfaces, the light-receiving amount of the back side 20b can be ensured, and the power generation can be increased.

As shown in Figure 2, since the ends of the -Y direction of the pair of load-bearing frames 42, 42 are lifted by the supporting columns, the pair of facing rail members 43, 43 are in the -Y direction. The rail member 43 is provided so as to be located above the rail member 43 on the +Y direction side. Thereby, the solar power generation panel 20 is installed obliquely with respect to the horizontal plane by lifting the end on the side in the -Y direction. The inclination angle of the solar power generation panel 20 can be appropriately set according to the environment in which the power generation device 100 is installed. The solar power generation panel 20 may also be installed horizontally with the water surface. However, the solar power generation panel 20 is installed such that at least one end in the Y direction is located above the upper surface of the buoy body 3. Therefore, the solar power generation panel 20 is installed so that at least a part of the back side surface 20b is located above the upper surface of the buoy body 3. Here, will clamp too A pair of buoy bodies 3 and 3 of the solar power generation panel 20 are arranged on the -Y direction side relative to the solar power generation panel 20. The buoy body 3 is called the first buoy body 3A, and the buoy body 3 on the +Y direction side It is called the second buoy body 3B. Thereby, as shown in FIG. 2, in the power generation device 100, a panel back space that belongs to the space below the back side 20b of the solar power generation panel 20 and is a space above the upper surface of the first buoy body 3A is formed S. The back space S of the panel is shown by the hatched line in the second figure.

Fig. 5 is a diagram showing the pillar connecting member 5 of the present embodiment. Moreover, FIG. 6 is a figure which shows the load-bearing frame connection member 6 of the stand 10 of this embodiment. In addition, FIG. 7 is a diagram showing the stand body 4 in a standing posture. The gantry 10 of this embodiment connects the gantry body 4 to the longitudinal frame 1 by supporting the frame connecting member 6 and the pillar connecting member 5, so that the posture of the gantry body 4 can be changed from the use posture shown in Figure 2 to the second 7 The standing position shown in the picture.

As shown in FIG. 5, the pillar connecting member 5 has: a fixing portion 51 fixed to the longitudinal frame 1 with bolts or the like; a support piece 52 protruding upward from the fixing portion 51 and having a plate shape orthogonal to the X direction; And a notch 52a formed in the supporting piece 52. The notch 52a penetrates the supporting piece 52 in the X direction and extends from the center of the supporting piece 52 to the upper end. Here, a screw is formed in the connection part of the pillar 41 and the vertical frame 1, and the screw shaft part 41a protruding in the X direction is formed. The notch 52a is formed in a manner that can accommodate the screw shaft portion 41a. The pillar connecting member 5 is formed by screwing the nut N to the screw shaft 41a in a state where the screw shaft 41a is accommodated in the notch 52a, and the support piece 52 is clamped by the pillar 41 and the nut N to connect the longitudinal Frame 1 and pillar 41. Here, on the surface of the support piece 52 facing the support 41, an engaging groove group 52b is formed in which grooves extending horizontally are arranged vertically. And, between the pillar 41 and the supporting piece 52 The facing surface is formed with an engaging protrusion group 41b that is engaged with the engaging groove group 52b by the groove accommodated in the engaging groove group 52b. In the state where the vertical frame 1 is connected to the pillar 41, the screw shaft portion 41a is received in the notch 52a to limit the movement of the pillar 41 in the Y direction. The support piece 52 is clamped by the pillar 41 and the nut N to The movement of the pillar 41 in the X direction is restricted, and the engaging protrusion group 41 b is engaged with the engaging groove group 52 b to restrict the movement of the pillar 41 in the up and down direction. In this state, the screw shaft 41a and the nut N are released, and the engagement between the engaging protrusion group 41b and the engaging groove group 52b is released, and the screw shaft 41a is slid and drawn out from the upper end of the notch 52a. This can release the connection between the vertical frame 1 and the pillar 41.

As shown in Fig. 6, the load-bearing frame connecting member 6 has: a fixing portion 61 fixed to the longitudinal frame 1 by bolts or the like; a shaft support piece protruding upward from the fixing portion 61 and having a plate shape orthogonal to the X direction 62; and a rotating shaft portion 6a protruding from the shaft support piece 62 in the X direction. A thread is formed in the rotation shaft portion 6a. Here, in the connection part of the load frame 42 and the longitudinal frame 1, the bearing hole 42a which belongs to the through-hole of a larger diameter than the rotation shaft part 6a penetrates in the X direction. The bearing frame connecting member 6 is in a state where the rotating shaft portion 6a is inserted into the bearing hole 42a so that the nut N is screwed to the screw shaft portion 41a, whereby the bearing frame 42 is clamped by the shaft support piece 62 and the nut N , To connect the longitudinal frame 1 and the pillar 41. The load-bearing frame connecting member 6 pivotally supports the load-bearing frame 42 so as to be rotatable about the rotating shaft portion 6a. Here, on the surface of the shaft support piece 62 facing the carrier frame 42, there is formed a contact protrusion groove group 62 b in which protrusions extending horizontally are arranged up and down. In the state where the vertical frame 1 and the load-bearing frame 42 are connected, the abutting groove group 62b abuts the load-bearing frame 42 to prevent the load-bearing frame 42 from rotating unintentionally.

When the power generation device 100 is used, the load-bearing frame 42 will be connected to the longitudinal frame 1 via the load-bearing frame connecting member 6, and the pillar 41 will be connected to the longitudinal frame via the pillar connecting member 5. The postures of the stand 1, the main body 4 of the stand are maintained in the use posture shown in Figure 2. In this state, since the pillar 41 is fixed to the vertical frame 1, the rotation of the supporting frame 42 around the rotation shaft portion 6a is restricted. In this state, by releasing the connection between the vertical frame 1 and the pillar 41, the supporting frame 42 can be rotated about the rotation axis. Thereby, the solar power generation panel 20 can be rotated around the X axis, and the angle of the solar power generation panel 20 and the horizontal plane can be expanded from the state of use posture. As a result, as shown in FIG. 7, the posture of the gantry body 4 can be made into a standing posture in which the opening of the solar power generation panel 20 to the horizontal plane is larger than the use posture. By changing the posture of the gantry body 4 to the upright posture, the operator can easily check the back side 20b of the solar power generation panel 20. In addition, the stand 10 may also have posture maintaining means for fixing the stand body 4 in the upright posture and maintaining the upright posture.

Next, the details of the float body 3 of this embodiment will be described. Fig. 8 is an overall perspective view of the buoy body 3 of this embodiment. As shown in Fig. 8, the buoy body 3 has: a buoy body 31 having a substantially rectangular parallelepiped shape; an anti-slip portion 32 formed on the upper surface of the buoy body 31; and both ends in the X direction formed in the buoy body 31的连接片33.

The connecting piece 33 is used to connect the buoy body 3 to the part of the longitudinal frame 1, and has a plate shape parallel to the XY plane. The buoy body 3 is mounted on the stand 10 by fixing the connecting piece 33 placed on the upper surface of the vertical frame 1 to the vertical frame 1.

The anti-slip portion 32 is formed by a plurality of anti-slip protrusions 321 protruding upwardly formed in a substantially angular column shape arranged at predetermined intervals in the XY direction. Figure 9 is a view showing the A-A section of Figure 8. As shown in Fig. 9, the top surface 321a of the anti-slip protrusion 321 is an inclined surface. The top surface 321a is inclined so as to descend in the +Y direction. Take this, as the first As shown in FIG. 2, the top surface 321a of the anti-slip protrusion 321 of the first buoy body 3A is in a state facing the back side 20b of the solar power generation panel 20.

The operator puts his feet on the anti-slip part 32 composed of a plurality of anti-slip protrusions 321 to perform work. Here, since the anti-slip protrusions 321 are provided at intervals, a groove is formed between the adjacent anti-slip protrusions 321 with the upper surface of the buoy body 31 as the bottom surface. Therefore, the water that has passed the anti-slip portion 32 from the water drops into the groove, flows in the groove, and falls into the water. This suppresses the accumulation of water in the anti-slip part 32. That is, by the anti-slip protrusion 321, drainage of the feet of the operator is performed. In this way, the operator is prevented from falling from the buoy body 3 due to a water slip, and the safety of the operation is ensured.

The buoy body 3 of this embodiment also has a function as a light reflecting part which reflects sunlight so that the light is incident on the back surface 20b of the solar power generation panel 20. The buoy body 3 reflects the sunlight irradiated on the buoy body 3 by the light reflecting part, so that the reflected light can be incident on the back side 20b of the solar power generation panel 20. This will be described in detail below.

The buoy body 3 of the present embodiment is formed by including a light reflecting material in addition to the resin material with high weather resistance as the main material as the material forming the outer shell 3a. More specifically, the outer shell 3a of the buoy body 3 contains shell powder and is formed as a light reflecting material. Shell powder is a powdery material obtained by crushing scallops and other shells into ultrafine particles. Certain shellfish, such as scallops, produce a shiny substance on the inside of the shell, which is also called nacre, whose main component is calcium carbonate. Since the shell powder produced by the shell contains the above-mentioned nacre, it is used as a light reflecting material. The buoy body 3 of this embodiment uses shell powder as a light-reflecting material by including shell powder in the material of the shell 3a. Compared with the buoy body 3 in which the material of the shell 3a does not contain the light-reflecting material, higher reflection can be utilized. The rate makes the irradiated sunlight reflect. By including light reflecting material The housing 3a is formed, and the surface of the housing 3a, that is, the outer surface of the float body 3, functions as a light reflecting portion.

Here, as for the light reflecting material, in addition to shell powder, metal particles such as glass particles, aluminum particles, silver particles, and copper particles can be exemplified. However, by using natural shell powder as a light reflecting material, the load on the aquatic environment can be reduced. In addition, with regard to the method of imparting the function as a light reflecting part to the outer surface of the float body 3, for example, in the molding of the housing 3a, the light reflecting material may be mixed with the resin material as the main material to mix the light The sheet material of the reflective material is transferred to the surface of the housing 3a.

<Method of power generation>

Next, the power generation method of the power generation device 100 of this embodiment will be described. Fig. 10 is a view of the X direction of the power generating device 100 and is used to illustrate the power generation method. The solar power generation panel 20 schematically shows the light path of the sunlight directly irradiated from the sun to the power generation device 100 with a hollow arrow indicated by the symbol L1 in the figure. In addition, the shaded arrow shown by L2 in the figure schematically shows the optical path of the reflected light of the sunlight reflected by the buoy body 3.

As shown in FIG. 10, the power generation device 100 is provided with the front side surface 20a (that is, the upper surface) of the solar power generation panel 20 facing the sun. In more detail, since the direction of the sun with respect to the power generating device 100 changes according to the elapsed time, for example, the sun is set in such a way that the front side 20a of the solar power generation panel 20 faces the sun for the longest time during the sunshine time. The direction of the photovoltaic panel 20.

The solar system directly irradiated to the front side surface 20a of the solar power generation panel 20 is incident on the front side surface 20a of the solar power generation panel 20. The photovoltaic power generation panel 20 uses the light received by the front side surface 20a to generate power.

In addition, sunlight also shines on the upper surface of the buoy body 3. The sunlight irradiated on the upper surface of the buoy body 3 is reflected by the light reflecting material contained in the housing 3a. As described above, the solar power generation panel 20 is installed above the buoy body 3, and the back side 20b of the solar power generation panel 20 will be exposed and formed between the back side 20b of the solar power generation panel 20 and the upper surface of the buoy body 3. There is a panel back space S, and a part of the reflected light reflected on the upper surface of the buoy body 3 passes through the panel back space S to reach the back side of the solar power generation panel 20. That is, by reflecting the sunlight irradiated on the upper surface of the buoy body 3, the reflected light can be incident on the back side 20b of the solar power generation panel 20. The solar power generation panel 20 uses light received on the back side 20b to generate power.

Furthermore, in the buoy body 3 of this embodiment, the top surface 321a of the anti-slip protrusion 321 is formed with an inclined surface to improve the directivity of the reflected light, and the light can be concentrated on the back side 20b of the solar power generation panel 20 . As shown in FIG. 10, the top surface 321a of the anti-slip protrusion 321 of the first buoy body 3A is formed to face the back surface 20b of the solar power generation panel 20. Thereby, more reflected light from the upper surface of the buoy can be guided to the back side 20b of the solar power generation panel 20.

[Effect]

As described above, the stand 10 of this embodiment supports the solar power generation panel 20 above the buoy body 3 so that at least a part of the back side 20b is exposed, and on the back side 20b of the solar power generation panel 20 and the buoy A panel back space S is formed between the upper surface of the body 3. In addition, on the upper surface of the buoy body 3, a light reflecting portion that reflects the irradiated sunlight and makes the reflected light enter the back side surface 20b of the solar power generation panel 20 is formed. As a result, the amount of light received on the back surface 20b of the solar power generation panel 20 can be increased. As a result, according to the stand 10 of the present embodiment, the amount of power generation can be increased in the water-borne solar power generation using the double-sided solar power generation panel 20. Furthermore, since the power generation capacity of each power generation device 100 increases, the power generation efficiency of the power generation device 100 relative to the installation area can be improved.

In addition, the gantry 10 of the present embodiment can also use the buoy body 3 as a work pedal, so the solar power generation panel 20 and the buoy body 3 are not arranged in a way that overlaps when viewed from the upper surface. Therefore, since sunlight can be irradiated on the upper surface of the buoy body 3, the reflected light of sunlight can be incident on the back surface 20b of the solar power generation panel 20.

Furthermore, the gantry 10 has the top surface 321a of the anti-slip protrusion 321 set as an inclined surface inclined with respect to the horizontal plane. That is, the light reflection part has an inclined surface inclined with respect to the horizontal plane. As a result, more reflected light from the upper surface of the buoy body 3 can be guided to the back side 20b of the solar power generation panel 20, and the reflected light on the upper surface of the buoy can be raised to the back side 20b of the solar power generation panel 20 The collection of light. As a result, the power generation capacity of the power generating device 100 can be further increased. In addition, by using the top surface 321a of the anti-slip protrusion 321 as an inclined surface, there is also an advantage that the water that crosses the top surface 321a of the anti-slip protrusion 321 can easily flow down.

However, the upper surface of the anti-slip protrusion 321 of the present invention may not be formed as an inclined surface. The upper surface of the anti-slip protrusion 321 may also be horizontal. The anti-slip portion 32 can also be composed of a plurality of grooves extending in one direction instead of protrusions. The present invention can have a function as a light reflecting part, and the light reflecting part is made by the float body 3 to make light incident on the back side 20b of the solar power generation panel 20. Therefore, the buoy body 3 may not have the anti-slip part 32, and the buoy body 31 may function as a light reflection part. However, since the buoy body 3 has the anti-slip part 32, it is possible to prevent the operator from slipping off the buoy body 3. In addition, by arranging the anti-slip protrusions 321 in the anti-slip portion 32, the upper surface of the float body 3 has an uneven shape, so that the sunlight irradiated on the anti-slip portion 32 can be randomly reflected. Therefore, regardless of the direction of the sun relative to the power generating device 100, a certain amount of reflected light can enter Shoot to the back side of the solar power generation panel. In addition, the buoy body 3 may not have the anti-slip protrusion 321 and have a concave-convex shape on the outer surface. In addition, the buoy body 3 may not have the outer shell 3a, and the outer surface may function as a light reflecting part. Here, in the buoy body 3, since the upper surface irradiated with sunlight reflects the sunlight, the reflected light can be incident on the back surface 20b of the solar power generation panel 20. Therefore, not the entire outer surface of the float body 3 but only the upper surface may function as a light reflection part. In this case, at least the upper surface of the float body 3 may include a light reflecting material.

Furthermore, the stand 10 uses natural and glossy shell powder as a light reflecting material. That is, the light reflection part is formed by containing shell powder. In this way, the load on the water environment can be reduced.

Furthermore, the gantry 10 rotates the gantry body 4 relative to the vertical frame 1 so that the posture of the solar power generation panel 20 can be switched between the use posture and the standing posture that is more upright than the use posture. Thereby, the operator takes the posture of the gantry body 4 as the standing posture, and can easily check the back side surface 20b of the solar power generation panel 20.

Furthermore, the gantry body 4 has an installation structure 200 that supports the solar power generation panel 20 at opposite ends of the solar power generation panel 20 to install the solar power generation panel 20. Thereby, the area of the part of the back side 20b of the solar power generation panel 20 that is shielded by the rail member 43 can be suppressed to a minimum. As a result, in the double-sided light-receiving type solar power generation panel 20 whose front and back sides are light-receiving surfaces, the light-receiving amount of the back side 20b can be ensured, and the power generation can be increased.

Fig. 11 is a diagram showing a water-installed solar power generation system 1000 (hereinafter referred to as a power generation system 1000) as an example of use of the power generation device 100 of the present embodiment. As shown in Fig. 11, the power generation system 1000 is configured by a plurality of power generation devices 100 arranged in the XY direction. Constructed by connection. The power generation devices 100 arranged in the Y direction in the power generation system 1000 use a common vertical frame 1. In addition, the power generating device 100 arranged in the X direction uses the common horizontal frame 2 and the common rail member 43. Thereby, the power generating devices 100 arranged in the XY direction are connected. In addition, the power generating device 100 adjacent in the Y direction uses a common buoy body 3. The supply of reflected light of sunlight to each solar power generation panel 20 is performed by the float body 3 adjacent to the -Y direction side of the solar power generation panel 20. The power generation system 1000 can obtain more power than the power generation device 100 by arranging a plurality of power generation devices 100 to form a solar power generation array.

As mentioned above, although this invention was demonstrated with reference to embodiment, this invention is not limited to the said embodiment. In addition, the content exemplified in the above embodiment can be combined as long as there is no contradiction.

1‧‧‧Vertical Frame

2‧‧‧Horizontal skeleton

3‧‧‧Buoy body (buoyant body)

3a‧‧‧Shell

3A‧‧‧First Buoy Body (Shell)

3B‧‧‧Second Buoy Body

4‧‧‧The base body

5‧‧‧Pillar connecting member

6‧‧‧Bearing skeleton connection member (shaft member)

7‧‧‧Installation tool

10‧‧‧Rack for water installation

20‧‧‧Solar power generation panel

20a‧‧‧Table side

20b‧‧‧back side

31‧‧‧Buoy body

32‧‧‧Anti-slip part

41‧‧‧Pillars

42‧‧‧Carrier Frame

43‧‧‧Track member

100‧‧‧Install solar power generation device on water

321‧‧‧Anti-slip protrusion

321a‧‧‧noodles

S‧‧‧Panel back space

Y‧‧‧Extending direction of longitudinal frame 1

Claims (4)

A stand for installing solar power panels on the water, which is used to install solar power panels with light-receiving surfaces on both sides on the water. The stand for installing solar power panels on water is provided with a buoyancy body that floats on the water; And a stand part is located beside the buoyancy body and above the buoyancy body, and the solar power generation panel is arranged; the stand part is such that at least a part of the back side of the solar power generation panel is exposed, In addition, a space is formed between the back side of the solar power generation panel and the upper surface of the buoyant body to support the solar power generation panel, and a light reflection part is formed on the upper surface of the buoyancy body, and the light reflection part is By reflecting the irradiated sunlight so as to be guided to the space, the reflected light of the sunlight is incident on the back side of the solar power generation panel, and the light reflecting part has an inclined surface inclined with respect to the horizontal plane, The inclined surface is inclined so as to descend toward the solar power generation panel side. The stand for installation on water of a photovoltaic power generation panel described in the first item of the scope of patent application, wherein the light reflecting part is formed by containing shell powder. For example, the stand for installing solar power panels on water as described in item 1 or 2 of the scope of the patent application, wherein the stand section has: a stand body on which the solar power generation panel is installed; and a connecting body The frame body is connected to the buoyancy body; The system of the gantry rotates relative to the connecting body, so that the posture of the solar power generation panel can be switched between the use posture and the standing posture that is more upright than the aforementioned use posture. The stand for installing solar power panels on water as described in item 1 or 2 of the scope of the patent application, wherein the stand section has: by supporting the opposite ends of the solar power generation panel for installation The installation structure of the aforementioned solar power generation panel.

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