TW201934938A - 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 water installation of photovoltaic power generation panel

The present invention relates to a pedestal for installing a photovoltaic power generation panel on water.

Conventionally, a solar power generation system using solar energy has been widely known against the background of insufficient energy or suppression of carbon dioxide emission, and a solar power generation device system that receives solar light by using a solar power generation panel to obtain power generation is becoming widespread. In addition, in recent years, it is rapidly spreading to install a photovoltaic power generation device on the water that can be installed on the water surface of the ocean, lakes, ponds, fish ponds, etc., thereby ensuring the expansion of the installation area of photovoltaic power generation plants.

In connection with this, Patent Document 1 proposes a technology for generating electricity in a photovoltaic power generation device on water such as a pond, which is easy to maintain and can be used for a long period of time before the cost of production or maintenance is reduced.

[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 photovoltaic power generation panel has been used that generates power by using a light-receiving type power generating element that receives light from both sides of the front and back surfaces, and receives light from both sides of the front and back surfaces. The double-sided light-receiving type solar power generation panel has the following advantages: By using both sides to introduce sunlight, a larger power generation amount than a single-sided power-generating type solar power generation panel of the same size can be obtained. However, in fact, a photovoltaic installation device on the water that can effectively utilize the above-mentioned advantages of the solar power generation panel of a double-sided light receiving type has not been proposed.

The present invention has been developed by the inventor in view of the above problems, and an object thereof is to provide a water installation stand for installing a solar power generation panel having two sides as light-receiving surfaces on a water-based photovoltaic power generation panel, so that the power generation amount can be further increased. For added technology.

In order to solve the above problems, the present invention adopts the following measures.

That is, the present invention is a pedestal for installation of a photovoltaic power generation panel, which is used to install a photovoltaic power generation panel with two sides as light-receiving surfaces on the water. A floating part on the water surface; and a stand part for installing the solar power generation panel at a position higher than the buoyant body; the stand part is such that at least a part of the back side surface of the solar power generation panel is exposed, Support the aforementioned solar power generation panels, A light reflecting portion is formed on the upper surface of the buoyancy body, and the light reflecting portion reflects the irradiated sunlight, so that the reflected light of the sunlight enters the back side surface of the photovoltaic power generation panel.

According to the present invention, at least a part of the back side surface of the photovoltaic power generation panel is exposed, and the sunlight irradiated with the light reflecting portion is reflected and the reflected light is incident on the back side surface of the photovoltaic power generation panel. According to this, the amount of light received on the back side of the photovoltaic power generation panel can be increased. As a result, in the solar photovoltaic power generation using the solar photovoltaic panel with a double-sided light receiving type, the power generation amount can be increased.

The light reflecting portion may have an inclined surface inclined with respect to a horizontal plane. According to this, more reflected light on the upper surface of the buoyancy body can be exported to the back side of the photovoltaic power generation panel, and as a result, the power generation amount can be increased.

The light reflecting portion may be formed by including shell powder. Accordingly, the light reflecting portion reflects the sunlight through the shell powder. Since the shell powder is derived from natural objects, it can reduce the load on the water environment.

In addition, the present invention may be such that the stand unit includes: a stand body on which the aforementioned photovoltaic power generation panel is installed; and a connecting body that connects the stand body to the buoyancy body; The rotation of the connection body allows the posture of the photovoltaic power generation panel to be switched between a use posture and a standing posture that is more upright than the use posture. According to this, the operator can easily check the back side of the photovoltaic power generation panel by setting the posture of the stand body to the standing posture.

Moreover, the said stand part may have the mounting structure which mounts the said photovoltaic power generation panel by supporting the opposite side ends of the said photovoltaic power generation panel. Therefore, the area of the portion shielded in the back side surface of the photovoltaic power generation panel can be suppressed to be small. As a result, in a photovoltaic power generation panel having both sides as 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, in a water installation stand where a solar power generation panel having both sides as light-receiving surfaces is installed on the water, the power generation amount can be further increased.

1‧‧‧longitudinal skeleton

2‧‧‧ horizontal skeleton

3‧‧‧buoy body (buoyancy body)

3a‧‧‧shell

3A‧‧‧The first buoy body (shell)

3B‧‧‧Second buoy body

4‧‧‧ Shelf base

5‧‧‧ pillar connecting member

6‧‧‧Bearing frame connecting member (shaft member)

6a‧‧‧rotation shaft

7‧‧‧Mounting Tools

10‧‧‧ Shelf for water installation

20‧‧‧Solar power generation panel

20a‧‧‧ side

20b‧‧‧ dorsal side

31‧‧‧buoy body

32‧‧‧Slipstop

33‧‧‧ Link

41‧‧‧ Pillar

41a‧‧‧Screw shaft

41b‧‧‧ Engagement protrusion group

42‧‧‧bearing skeleton

42a‧‧‧bearing hole

43‧‧‧ rail member

43a‧‧‧Ditch wall

43b‧‧‧Sidewall

43c‧‧‧Ditch upper wall

51‧‧‧Fixed section

52‧‧‧Support

52a‧‧‧ gap

52b‧‧‧Kahegou Group

61‧‧‧Fixed section

62‧‧‧shaft support

62b‧‧‧butt

71‧‧‧ engagement member

72‧‧‧ clamping members

73‧‧‧ Empowerment

74‧‧‧Fixed bolts

100‧‧‧Solar power generation device installed on water

200‧‧‧Installation structure

321‧‧‧Anti-slip protrusion

321a‧‧‧Top

431‧‧‧Guide groove

432‧‧‧mounting section

433‧‧‧ clamping member locking piece

721‧‧‧ abutment department

721a‧‧‧ Upper surface abutment

721b‧‧‧side end contact part

722‧‧‧Restricted Department

731‧‧‧elastic sheet

1000‧‧‧ Power Generation System

L1‧‧‧Light Road

L2‧‧‧Light Road

N‧‧‧nut

S‧‧‧ panel back space

X‧‧‧ Extension direction of horizontal skeleton 2

Y‧‧‧ Extension direction of vertical skeleton 1

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

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

Fig. 3 is a view showing a mounting structure of a photovoltaic power generation panel according to an embodiment.

FIG. 4 is a diagram showing a state where a photovoltaic power generation panel is mounted on a stand.

Fig. 5 is a view showing a pillar connecting member according to the embodiment.

Fig. 6 is a view showing a supporting frame connecting member according to the embodiment.

Fig. 7 is a view showing a stand body in a standing position.

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

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

FIG. 10 is a diagram for explaining a power generation method in which a photovoltaic power generation device is installed on the water according to the embodiment.

Fig. 11 is a diagram showing a photovoltaic installation system on the water as an example of use of the photovoltaic installation device on the water according to the present embodiment.

Next, an embodiment of the present invention will be described with reference to the drawings. The following description is an example, and the present invention is not limited to the following.

[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 the water in the embodiment. FIG. 2 is an X-direction view of the power generating device 100.

As shown in FIG. 1 and FIG. 2, the power generating device 100 is provided with a stand 10 for aquatic installation of a photovoltaic power generation panel (hereinafter referred to as a “stand 10”); The photovoltaic power generation panel 20 of the stand 10. The power generating device 100 is installed on water in the ocean, lakes, marshes, storage tanks, fish ponds, and the like.

[Solar power generation panel]

First, the photovoltaic 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 by encapsulating a power generation element (silicon oxide unit) between a front-side protection member and a back-side protection member. Here, in the present specification, the “lower surface (back side surface)” of the photovoltaic power generation panel 20 refers to a surface facing the water surface when the photovoltaic power generation panel 20 is installed on the stand 10. The “upper surface (front surface)” of the photovoltaic power generation panel 20 refers to a surface on the opposite side to the water surface when the photovoltaic power generation panel 20 is installed on the stand 10.

The photovoltaic power generation panel 20 of this embodiment is a power generation element that uses a light-receiving power generation element that can receive light from both sides of the front and back surfaces, and uses a front-surface protective member and a back-side protective member as a reference, and is formed of a glass plate with high transparency In this way, the so-called double-glass structure that receives light from both sides of the front and back and generates electricity is used. The solar power generation panel 20 of this embodiment can also be referred to as a solar power generation panel of a two-sided light receiving type (also referred to as a double-sided power generating type) in which both front and back surfaces are light receiving surfaces. Since the two-sided light-receiving type solar power generation panel uses two sides to introduce sunlight, it is possible to obtain a larger power generation amount than a single-sided power-generating type solar power generation panel of the same size.

Here, the photovoltaic power generation panel has a tendency that when the surface temperature exceeds a predetermined temperature, power generation efficiency decreases. Since the double-sided light-receiving type solar power generation panel has a larger power generation amount than the single-size light-receiving type solar power generation panel of the same size, the surface temperature tends to be higher than that of the single-side power-generating type solar power generation panel. The power generation device 100 can reduce the surface temperature of the photovoltaic power generation panel by the cooling effect of the water surface, and is therefore particularly effective for photovoltaic power generation using a two-sided light receiving type photovoltaic power generation panel.

[shelf]

Next, the stand 10 will be described. The stand 10 is a stand for mounting the photovoltaic power generation panel 20 on the water. The pedestal 10 has a pair of longitudinal skeletons 1 and 1 provided on a horizontal plane at a predetermined interval and parallel to each other; and in a state of extending in a direction orthogonal to the extending direction of the longitudinal skeleton 1 through a predetermined interval. A plurality of horizontal skeletons 2 are erected on the vertical skeleton 1 at intervals. As shown in FIG. 1, a frame 10 is formed by connecting a vertical skeleton 1 with a horizontal skeleton 2. Here, the extending direction of the horizontal skeleton 2 is set to 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 skeleton 1 is set to the Y direction. Power generating device 100 in this embodiment In the middle, 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 photovoltaic power generation panel 20 is inclined downward is referred to as a “+ Y direction”.

The pedestal 10 series further includes: a pair of longitudinal skeletons 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; 1 and a gantry body 4 provided to sandwich a pair of buoy bodies 3 and 3 between each other. The buoy body 3 and the pedestal body 4 are connected by a vertical skeleton 1. The vertical skeleton 1 corresponds to the "connected body" of the present invention. In addition, the configuration including the pedestal body 4 and the vertical skeleton 1 corresponds to the "pedestal portion" of the present invention. The stand section is provided with a photovoltaic power generation panel 20 at a position higher than the buoy body 3. The gantry 10 further includes: a pair of pillar connecting members 5 and 5 installed at a pair of longitudinal frames 1 and 1 opposite to each other; and a pair of pillar connecting members 5 and 5 installed from one of the longitudinal frames 1 toward + Y. A pair of load-bearing skeleton connecting members 6, 6 spaced apart in the direction. Specifically, as described later, the gantry body 4 is connected to the vertical frame 1 via the pillar connection member 5 and the load-carrying frame connection member 6.

The buoy body 3 is a member that obtains buoyancy for floating the power generating 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 set or check the solar power generation panel 20. The stand 10 of this embodiment may use the buoy body 3 as a work pedal, and may be arranged so that the photovoltaic 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 provided by being laterally erected on the vertical skeleton 1. The buoy body 3 has a substantially rectangular parallelepiped shape, and is mounted on the pedestal 10 so that the two surfaces facing each other are orthogonal to the X direction. The buoy body 3 is formed by filling a foamed resin in the inside of the casing 3a, which is mainly composed of a non-metal material such as a weather-resistant resin material (for example, fiber-reinforced plastic). The outer shell 3 a constitutes the outer surface of the buoy body 3. And, the buoy The body 3 is floating on the water surface, and a part of the buoy body 3 is protruded below the vertical skeleton 1 and is located in the water, so that the 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 vertical frame 1, or is located slightly above. In addition, on the upper surface of the buoy body 3, an anti-slip portion 32 is formed that exhibits a non-slip function when the operator uses the buoy body 3 as a pedal. The buoy body 3 is equivalent to the "buoyancy body" of this invention. In addition, the buoy body 3 also has a function as a "light reflecting portion" of the present invention. In addition, the buoy body 3 of this embodiment can increase the power generation amount of the power generation device 100. Details of the buoy body 3 are described later.

The gantry body 4 supports the photovoltaic power generation panel 20 with an appropriate inclination angle. As shown in FIGS. 1 and 2, a photovoltaic power generation panel 20 is mounted on the gantry body 4 at a position higher than the buoy body 3. The gantry body 4 includes a pair of pillars 41 and 41 which are erected on the vertical skeleton 1 via the pillar connecting members 5 and a pair of supporting skeletons 42 and 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 skeleton 1 via a bearing skeleton connecting member 6. The pair of rail members 43, 43 extend parallel to the X direction at predetermined intervals in the Y direction. The aspect is erected laterally on a pair of supporting frames 42 and 42; and a mounting tool 7 for fixing the photovoltaic power generation panel 20 to the rail member 43.

As shown in FIG. 1, in the power generating device 100 according to this embodiment, the two opposite ends of the photovoltaic power generation panel 20 are placed on the upper surfaces of the pair of rail members 43 and 43. The both ends of the photovoltaic power generation panel 20 are clamped by the rail member 43 and the mounting tool 7, thereby mounting the photovoltaic power generation panel 20 on the stand 10.

Here, the gantry body 4 of this embodiment has a mounting structure 200 for a structure for mounting the photovoltaic power generation panel 20. Figure 3 shows solar power generation in this embodiment. Figure of a panel mounting structure 200. FIG. 4 is a diagram showing a state where the photovoltaic power generation panel is mounted, and is a cross-sectional view when a cross section orthogonal to the extending direction of the rail member 43 is cut. As shown in FIG. 3, the mounting structure 200 of this embodiment is configured to include a guide groove 431 and a mounting portion 432 formed on the rail member 43, and a mounting tool 7.

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 FIG. 4, the guide groove 431 is formed by the groove lower wall 43a forming the bottom of the groove, the groove side walls 43b, 43b extending upward from both ends of the groove lower wall 43a, and the groove side walls 43b, 43b. A pair of groove upper walls 43c and 43c whose upper ends extend opposite to each other are formed. In addition, at the opening edge of the guide groove 431, the clamping member locking pieces 433 and 433 are formed to protrude upward.

The mounting portion 432 is a flat surface that constitutes 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 a photovoltaic 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 via a guide groove 431.

As shown in FIG. 3, the mounting tool 7 is configured to include an engaging member 71, a clamping member 72, a potential imparting member 73, and a fixing bolt 74.

As shown in FIG. 4, the engaging member 71 is used by being inserted into the guide groove 431. The engaging member 71 is formed at an arbitrary position in the extending direction of the guide groove 431, can be inserted into the guide groove 431, and can be slid freely in the guide groove 431. Thereby, the mounting tool 7 can be mounted at an arbitrary position in the extending direction of the rail member 43. The engaging member 71 is engaged with the groove upper walls 43 c and 43 c forming the guide groove 431. By engaging the engaging member 71 and the groove The upper wall 43 c is engaged, and a clamping member 72 connected to the engaging member 71 is provided on the rail member 43.

As shown in FIG. 4, the potential energy imparting member 73 is attached to and used in the engaging member 71. The potential energy imparting member 73 is an elastic piece 731 having a groove lower wall 43 a to the guide groove 431. The potential energy is applied to the lower groove wall 43a by the elastic sheet 734, so that the engaging member 71 applies potential energy to the upper groove wall 43c, so as to maintain the engagement between the engaging member 71 and the upper groove wall 43c.

As shown in FIG. 4, the clamping member 72 is used as an engaging member 71 that is connected to the guide groove 431 via a fixing bolt 74. The fixing bolt 9 is a so-called cap bolt (a bolt with a hexagonal hole). The holding member 72 is provided so as to face the mounting portion 432 outside the guide groove 431. The holding member 72 includes: an abutting portion 721 that abuts on the photovoltaic power generation panel 20 placed on the placing portion 432; and a pair of restricting portions 722 and 722 that abut on the placing portion 432. The abutting portion 721 further includes an upper surface abutting portion 721 a abutting on the upper surface of the photovoltaic power generation panel 20, and a side end abutting portion 721 b abutting on a side end surface of the photovoltaic power generation panel 20. The abutting portion 721 is made of rubber. The clamping members 72 press the upper surfaces of the both end portions of the photovoltaic power generation panel 20 by the upper surface abutting portions 721a. In addition, the clamp member locking pieces 433 and 433 formed on the rail member 43 are clamped by a pair of restriction portions 722 and 722 to restrict the clamp member 72 from moving in the width direction of the rail member 43.

As shown in FIG. 4, the photovoltaic power generation panel 20 is supported from below by the mounting portion 432 and is clamped by the upper surface abutment portion 721 a of the clamping member 72 and the mounting portion 432 of the rail member 43. The photovoltaic power generation panel 20 is mounted on the gantry 10 while holding a side end portion thereof. Since the mounting portion 432 is extended along the guide groove 431, it can support substantially the entire area of the side end portion of the photovoltaic power generation panel 20. Thereby, the supporting surface for supporting the photovoltaic power generation panel 20 can be sufficiently ensured. As a result, the photovoltaic power generation panel 20 can be stably supported. As a result, the photovoltaic power generation panel 20 can be suppressed from being deflected. In addition, since the abutting portion 721 is formed of rubber, it is possible to suppress the glass plate of the photovoltaic power generation panel 20 from being damaged due to the pressing or to absorb the expansion of the glass plate.

The mounting structure 200 supports the photovoltaic power generation panel 20 by mounting a side end portion of the photovoltaic power generation panel 20 on a mounting portion 432 extending along the guide groove 431. Thereby, as shown in FIG. 1, the photovoltaic power generation panel 20 can be supported so that the photovoltaic power generation panel 20 does not cross the rail member 43. Therefore, since the photovoltaic power generation panel 20 is supported by the pedestal 10 at the end portions on both sides, at least a part of the back side surface 20 b of the photovoltaic power generation panel 20 is exposed. In particular, compared with the structure which supports the photovoltaic power generation panel 20 so as to straddle the rail member 4, the area of the portion of the back side surface 20b of the solar power generation panel 20 that is shielded by the rail member 43 can be suppressed. As a result, in the two-surface light-receiving type photovoltaic power generation panel 20 having both the front and back surfaces as light-receiving surfaces, the amount of light received by the back-side surface 20b can be secured, and the power generation amount can be increased.

As shown in FIG. 2, since the end portions of the pair of supporting frames 42 and 42 in the -Y direction are lifted by the support columns, the pair of opposing rail members 43 and 43 are arranged in the -Y direction. The rail member 43 is provided above the rail member 43 on the + Y direction side. Thereby, the photovoltaic power generation panel 20 is tilted with respect to a horizontal plane by raising the edge part on the -Y direction side. The inclination angle of the photovoltaic power generation panel 20 can be appropriately set in accordance with the environment in which the power generation device 100 is installed. The photovoltaic power generation panel 20 may be installed horizontally to the water surface. However, the photovoltaic power generation panel 20 is provided so that at least one end in the Y direction is positioned above the upper surface of the buoy body 3. Therefore, the photovoltaic power generation panel 20 is provided so that at least a part of the back side surface 20 b is positioned above the upper surface of the buoy body 3. Here, will clamp too Among the pair of buoy bodies 3 and 3 of the solar power generation panel 20, the buoy body 3 located on the -Y side with respect to the solar power generation panel 20 is called the first buoy body 3A, and the buoy body 3 on the + Y direction Called the second buoy body 3B. Thereby, as shown in FIG. 2, in the power generation device 100, a panel back space belonging to a space below the back side surface 20 b of the photovoltaic power generation panel 20 and 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 a hatched line in FIG. 2.

Fig. 5 is a view showing a pillar connecting member 5 according to this embodiment. FIG. 6 is a view showing a supporting frame connecting member 6 of the stand 10 of the present embodiment. FIG. 7 is a view showing the stand body 4 in the standing position. The pedestal 10 of this embodiment connects the pedestal body 4 to the vertical skeleton 1 by supporting the skeletal connection member 6 and the pillar connection member 5, so that the posture of the pedestal body 4 can be changed from the use posture shown in FIG. 2 to the first. Figure 7 shows the standing position.

As shown in FIG. 5, the pillar connecting member 5 includes: a fixing portion 51 fixed to the longitudinal frame 1 by 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 52 a formed in the support sheet 52. The notch 52 a penetrates the support piece 52 in the X direction, and extends from the center of the support piece 52 toward the upper end. Here, a threaded portion is formed at a connection portion between the pillar 41 and the vertical frame 1, and a screw shaft portion 41 a protruding in the X direction is formed. The notch 52a is formed so that the screw shaft portion 41a can be accommodated. The pillar connecting member 5 is screwed with the nut N to the screw shaft portion 41a while the screw shaft portion 41a is accommodated in the notch 52a, and the support piece 52 is held by the pillar 41 and the nut N to connect the vertical portion Skeleton 1 and pillar 41. Here, an engagement groove group 52b is formed on the surface of the support piece 52 facing the support 41, and the grooves extend horizontally and vertically. The support 41 faces the support piece 52. The facing surface is formed with an engagement protrusion group 41b which is engaged with the engagement groove group 52b by a groove accommodated in the engagement groove group 52b. In the state where the vertical skeleton 1 is connected to the pillar 41, the screw shaft portion 41a is accommodated in the notch 52a to restrict the movement of the pillar 41 in the Y direction, and 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 engagement protrusion group 41b is engaged with the engagement groove group 52b to restrict the movement of the pillar 41 in the up-down direction. In this state, the screw engagement of the screw shaft portion 41a and the nut N is released, and the engagement of the engagement protrusion group 41b and the engagement groove group 52b is released. The screw shaft portion 41a is slid to protrude 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 supporting frame connecting member 6 includes a fixing portion 61 fixed to the vertical frame 1 by a bolt or the like, and a shaft supporting 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 screw is formed in the rotation shaft portion 6a. Here, the bearing hole 42a, which is a through hole having a larger diameter than the rotating shaft portion 6a, is connected in the X direction at the connection portion between the load bearing frame 42 and the vertical frame 1. The supporting frame connecting member 6 is a state in which the nut N is screwed to the screw shaft portion 41a while the rotating shaft portion 6a is inserted into the bearing hole 42a, thereby holding the supporting frame 42 with the shaft support piece 62 and the nut N. To connect the vertical skeleton 1 and the pillar 41. The supporting frame connecting member 6 pivotally supports the supporting frame 42 so as to be rotatable about the rotation shaft portion 6a. Here, on the surface of the shaft support piece 62 that faces the bearing frame 42, a contact protrusion group 62 b in which protrusions extending horizontally are arranged up and down is formed. In a state where the longitudinal skeleton 1 and the bearing skeleton 42 are connected, the abutting groove group 62b will abut against the bearing skeleton 42 to prevent the bearing skeleton 42 from inadvertently rotating.

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

Next, the buoy body 3 of this embodiment will be described in detail. Fig. 8 is an overall perspective view of the buoy body 3 of this embodiment. As shown in FIG. 8, the buoy body 3 includes: a buoy body 31 having a substantially rectangular parallelepiped shape; a non-slip portion 32 formed on the upper surface of the buoy body 31; and both ends of the buoy body 31 in the X direction.的 连片 33。 The connection piece 33.

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

The anti-slip portion 32 is formed by a plurality of anti-slip protrusions 321 which are formed in a substantially rectangular column shape and are arranged to protrude upward at predetermined intervals in the XY direction. Fig. 9 is a view showing the A-A cross section of Fig. 8. As shown in FIG. 9, the top surface 321 a of the anti-slip protrusion 321 is an inclined surface. The top surface 321a is inclined so as to descend in the + Y direction. With this, as As shown in FIG. 2, the top surface 321 a of the anti-slip protrusion 321 of the first buoy body 3A is in a state facing the rear side surface 20 b of the photovoltaic power generation panel 20.

The operator performs the work in a state in which his feet are placed on the anti-slip portion 32 constituted by a plurality of anti-slip protrusions 321. Here, the anti-slip protrusions 321 are provided at intervals, and a groove with the upper surface of the buoy body 31 as a bottom surface is formed between adjacent anti-slip protrusions 321. Therefore, the water passing through the anti-slip portion 32 from the water drops into the groove, flows into the groove, and flows into the water. As a result, water accumulation in the anti-slip portion 32 is suppressed. That is, the anti-slip protrusion 321 performs drainage under the operator's feet. This prevents the operator from falling out of the buoy body 3 due to water slipping, thereby ensuring the safety of the operation.

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

The buoy body 3 of this embodiment is formed of a material for forming the outer casing 3a, and includes a light-reflecting material in addition to the weather-resistant resin material as the main material. More specifically, the outer shell 3a of the buoy body 3 is made of shell powder and formed as a light reflecting material. Shell powder is a powdery material obtained by crushing shells such as scallops into ultrafine particles. Some shellfish, such as scallops, produce a lustrous substance based on calcium carbonate, also called pearl layer, inside the shell. The shell powder produced by the shell contains the above-mentioned pearl layer and is used as a light reflecting material. The buoy body 3 of this embodiment is made of a material containing shell powder in the outer shell 3a as a light reflecting material, and compared with the buoy body 3 in which the material of the outer shell 3a does not contain a light reflecting material, a higher reflection can be used. The rate reflects the irradiated sunlight. By including a light reflecting material, The casing 3a is formed, and the surface of the casing 3a, that is, the outer surface of the buoy body 3 functions as a light reflection part.

Here, as for the light reflecting material, in addition to shell powder, metal fine particles such as glass fine particles, aluminum fine particles, silver fine particles, and copper fine particles can be exemplified. However, by using shell powder from natural materials as a light reflecting material, the load on the water environment can be reduced. In addition, in the method of imparting a function as a light reflecting portion on the outer surface of the buoy body 3, for example, in the molding of the housing 3a, a light reflecting material is mixed with a resin material as a main material, and light containing light is mixed. A sheet of reflective material is transferred onto the surface of the casing 3a.

<Power generation method>

Next, a power generation method of the power generation device 100 according to this embodiment will be described. FIG. 10 is an X-direction view of the power generating device 100 and is a diagram for explaining a power generating method. The photovoltaic power generation panel 20 schematically shows an optical path of sunlight that is directly radiated from the sun to the power generation device 100 with a hollow arrow shown by a symbol L1 in the figure. The hatched 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 a front side surface 20 a (that is, an upper surface) of the photovoltaic 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 depending on the elapsed time, the sun is set such that the time during which the surface side 20a of the photovoltaic power generation panel 20 faces the sun is the longest during the sunshine time, for example. Direction of the photovoltaic power generation panel 20.

The solar light which is directly irradiated to the front side surface 20 a of the solar power generation panel 20 is incident on the front side surface 20 a of the solar power generation panel 20. The photovoltaic power generation panel 20 generates power by using light received by the front surface 20a.

In addition, sunlight also irradiates the upper surface of the buoy body 3. The sunlight shining on the upper surface of the buoy body 3 is reflected by a light reflecting material contained in the casing 3a. As described above, the photovoltaic power generation panel 20 is disposed above the buoy body 3, and the back side surface 20b of the photovoltaic power generation panel 20 is exposed, formed between the back side surface 20b of the photovoltaic 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 photovoltaic power generation panel 20. That is, by reflecting sunlight irradiated on the upper surface of the buoy body 3, the reflected light can be made incident on the back side surface 20b of the photovoltaic power generation panel 20. The photovoltaic power generation panel 20 generates power by using light received on the back side surface 20b.

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

[Effect]

As described above, the stand 10 of this embodiment supports the photovoltaic power generation panel 20 above the buoy body 3 so that at least a part of the rear side surface 20b is exposed, and the rear side surface 20b and the buoy of the photovoltaic power generation panel 20 A panel back space S is formed between the upper surfaces of the body 3. A light reflecting portion that reflects the irradiated sunlight and makes the reflected light incident on the back side surface 20 b of the photovoltaic power generation panel 20 is formed on the upper surface of the buoy body 3. Thereby, the amount of light received by the back side surface 20b of the photovoltaic power generation panel 20 can be increased. As a result, according to the gantry 10 of this embodiment, it is possible to increase the amount of power generated in the over-the-water solar power generation using the solar power generation panel 20 of the double-sided light receiving type. Furthermore, since the power generation amount of each seat of the power generation device 100 will increase, the power generation efficiency of the power generation device 100 with respect to the installation area can be improved.

In addition, the pedestal 10 of the present embodiment can also use the buoy body 3 as a pedal for work, so the photovoltaic power generation panel 20 and the buoy body 3 are not arranged in a repeated manner when viewed from above. Therefore, since the sunlight can be irradiated on the upper surface of the buoy body 3, the reflected light of the sunlight can be made incident on the back side surface 20b of the photovoltaic power generation panel 20.

Moreover, the stand 10 is an inclined surface in which the top surface 321a of the anti-slip protrusion 321 is inclined with respect to a horizontal plane. That is, the light reflecting portion has an inclined surface that is inclined with respect to a horizontal plane. Thereby, more reflected light on the upper surface of the buoy body 3 can be guided to the back side surface 20b of the solar power generation panel 20, and the reflected light on the upper surface of the buoy can be improved to the back side surface 20b of the solar power generation panel 20. Light collection. As a result, the power generation amount of the power generating device 100 can be further increased. In addition, by using the top surface 321a of the anti-slip projection 321 as an inclined surface, there is also an advantage that water that flows over the top surface 321a of the anti-slip projection 321 easily flows.

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

In addition, the stand 10 uses a shell powder derived from natural materials and having gloss as a light reflecting material. That is, the light reflecting portion is formed by including shell powder. This can reduce the load on the water environment.

In addition, the gantry 10 is capable of switching the posture of the photovoltaic power generation panel 20 between a use posture and a standing posture that is more upright than the use posture by rotating the gantry body 4 relative to the vertical frame 1. Thereby, the operator can easily check the back side surface 20b of the photovoltaic power generation panel 20 by using the posture of the gantry body 4 as the standing posture.

In addition, the gantry body 4 has a mounting structure 200 that supports the solar power generation panel 20 by supporting the two opposite end portions of the solar power generation panel 20. Thereby, the area of the portion of the back side surface 20b of the photovoltaic power generation panel 20 that is shielded by the rail member 43 can be minimized. As a result, in the two-surface light-receiving type photovoltaic power generation panel 20 having both the front and back surfaces as light-receiving surfaces, the amount of light received by the back-side surface 20b can be secured, and the power generation amount can be increased.

FIG. 11 is a diagram showing a solar power generation system 1000 (hereinafter referred to as a power generation system 1000) installed on the water as an example of use of the power generation device 100 according to this embodiment. As shown in FIG. 11, the power generation system 1000 uses a plurality of power generation devices 100 arranged in the XY direction. Constructed by links. The power generating devices 100 arranged in the Y direction in the power generating system 1000 use a common vertical skeleton 1. In addition, the power generating devices 100 arranged in the X direction use a common horizontal skeleton 2 and a common rail member 43. Thereby, the power generating devices 100 arranged in the XY direction are connected. The power generating devices 100 adjacent to each other in the Y direction use a common buoy body 3. The reflected light of sunlight is supplied to each photovoltaic power generation panel 20 by the buoy body 3 adjacent to the -Y direction side of the photovoltaic power generation panel 20. The power generation system 1000 can obtain a larger amount of power than a single power generation device 100 by arranging a plurality of power generation devices 100 and forming 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. The contents exemplified in the above embodiment can be combined as long as there is no contradiction.

Claims (4)

The utility model discloses a mounting platform for a photovoltaic power generation panel, which is used for mounting a photovoltaic power generating panel with two sides as light receiving surfaces on the water. The mounting platform for a photovoltaic power generation panel includes: a buoyant body, floating on the water surface. ; And a stand unit, which is provided beside the buoyancy body and above the buoyancy body, and is provided with the solar power generation panel; the stand unit is such that at least a part of a back side surface of the solar power generation panel is exposed; In a manner that a space is formed between the back side surface of the solar power generation panel and the upper surface of the buoyant body, the solar power generation panel is supported, and a light reflection portion is formed on the upper surface of the buoyancy body. The light reflection portion is By reflecting the irradiated sunlight in such a manner as to be guided to the space, the reflected light of the sunlight is made incident on the back side surface of the photovoltaic power generation panel, and the light reflecting portion has an inclined surface inclined with respect to a horizontal plane. The inclined surface is inclined so as to descend toward the photovoltaic power generation panel side. The pedestal for installing a photovoltaic power generation panel according to item 1 in the scope of the patent application, wherein the light reflecting portion is formed by including shell powder. The above-mentioned mounting platform for a photovoltaic power generation panel according to item 1 or 2 of the scope of application for a patent, wherein the mounting base portion includes: a mounting base body on which the aforementioned photovoltaic power generation panel is mounted; and a connecting body, which The stand body is connected to the buoyancy body; The above-mentioned gantry system allows the posture of the photovoltaic power generation panel to be switched between a use posture and a standing posture which is more upright than the usage posture by rotation relative to the connection body. The gantry for installing a photovoltaic power generation panel as described in item 1 or 2 of the scope of the patent application, wherein the gantry portion includes: mounting by supporting opposite ends of the photovoltaic power generation panel on opposite sides; The mounting structure of the aforementioned photovoltaic power generation panel.