KR102528483B1 - Solar power generation system with tray for cable connection between units - Google Patents

Abstract

The present invention relates to a floating photovoltaic power generation device equipped with a cable tray for unit connection, which can safely protect and guide various cables such as transmission cables and communication cables without damage while flexibly responding to displacement differences between unit units due to waves. that made it possible
In the present invention, in a floating photovoltaic power generation device in which unit units composed of a solar panel, a frame assembly in which a plurality of longitudinal frames and a transverse frame are cross-linked, and a plurality of floats are connected to each other, one unit unit adjacent to each other and It is characterized by having a cable tray for connecting unit units installed by connecting unit units on the other side.

Description

Floating solar power generator with cable tray for connecting unit units {SOLAR POWER GENERATION SYSTEM WITH TRAY FOR CABLE CONNECTION BETWEEN UNITS}

The present invention relates to a floating photovoltaic power generation device, and in particular, a cable for connecting unit units capable of safely protecting and guiding various cables such as transmission cables and communication cables without damage while flexibly responding to displacement differences between unit units due to waves. It relates to a floating photovoltaic device having a tray.

Recently, as regulations to suppress the emission of carbon dioxide have been enforced worldwide, the development of a new power plant that does not emit carbon dioxide is required.

As such, there is no emission of carbon dioxide, and as a power generation device using clean energy, a power generation device using solar light is representative.

However, the power generation capacity of the solar power generation system varies depending on the generation area and the amount of sunlight. In order to install it in a large area, there are many restrictions on land purchase due to the use of a huge amount of land, and land purchase or compensation is required. Due to the problem of high cost, there was a practical difficulty in obtaining cooperation from neighboring residents in order to install power generation facilities on a large scale.

In addition, as in the prior art, a solar power generation system installed on land generates an enormous amount of heat in the process of generating electricity by receiving sunlight, and a large amount of energy is transmitted from the land on which the solar power generation system is installed, so that the solar panel It had a problem that degraded the performance and caused a failure.

Accordingly, floating photovoltaic power generation devices that install solar panels on the surface of rivers, lakes, reservoirs, dams, etc. have been actively proposed to secure a wide open installation area with abundant sunlight while reducing problems, and now actual construction is underway. This is a situation that is happening until now.

The floating photovoltaic power generation device is made by connecting a plurality of solar panels, a frame assembly for supporting the plurality of solar panels to be located on the water surface, and a plurality of unit units in which a float is combined. Transmission cables connected to these unit units, communication Various cables, such as cables and ground cables, are guided along the cable tray as shown in FIG. 1 and then laid on the water surface to be connected to the land.

However, in the prior art, since the cable tray was used as it was in land-based electrical facilities, it was difficult to construct, and there was a problem in that it could not flexibly respond when different displacements occurred between unit units due to waves occurring on the water. As a result, the cable was damaged on the connection path between units, leading to a fatal problem in which the entire cable had to be replaced.

Korea Patent Registration No. 1241454 (2013.03.04.)

Therefore, the present invention has been proposed to solve the above conventional problems, and an object of the present invention is to safely protect various cables such as transmission cables and communication cables without damage while flexibly responding to displacement differences between unit units due to waves. And to provide a floating photovoltaic device equipped with a cable tray for connecting one unit to guide.

In order to achieve the above object, the floating photovoltaic device according to the technical idea of the present invention is a frame assembly in which a plurality of longitudinal frames and transverse frames are cross-coupled, and unit units composed of a plurality of floats are connected to each other. In the connected floating photovoltaic power generation device, a cable tray for connecting unit units installed by connecting one unit unit and the other unit unit adjacent to each other is characterized in terms of its technical configuration.

Here, the front and rear ends of the cable tray are elastically supported in a state connected by springs to the transverse frame of one unit unit and the transverse frame of the other unit unit, respectively, so that the relative vertical displacement between the unit unit on one side and the unit unit on the other side , it can be characterized in that it can accommodate differences in horizontal displacement and rotational displacement.

In addition, the front and rear ends of the cable tray are draped over the lower side of the frame assembly of one unit unit and the lower side of the frame assembly of the other unit unit, respectively, so that cables are not exposed between the spaced apart space between one unit unit and the other unit unit. can do.

In addition, the cable tray includes a tray body having a longitudinal guide hole for accommodating and guiding cables, and installed at the front and rear ends of the tray body, respectively, so that the front and rear ends of the tray body are formed as transverse frames It may be characterized in that it includes a plurality of coil springs connected to and elastically supported.

In addition, the tray body is formed in the shape of a flat square tube in which the vertical width is narrower than the front and rear widths and the left and right widths. It may be characterized in that it does not come into contact with the surface of the water.

In addition, it may be characterized in that ribs for reinforcing strength are installed in the longitudinal direction along the upper and lower ends of the left and right walls of the tray body, respectively.

In addition, the tray main body may be characterized in that it is made of a detachable cover so that the upper surface can be opened.

In addition, a side wall joint panel installed on the left wall and right wall of the front end of the tray body and the left wall and right wall of the rear end portion, respectively, and bonded to the side wall of the tray body at each point, and the side wall from the front or rear end of the side wall joint panel An L-shaped first bracket made of orthogonal extension panels extending orthogonally outward is provided, the upper end is fixed to the side surface of the transverse frame, and the lower end extends to the lower side of the transverse frame so that the first bracket is orthogonal to the first bracket. A second bracket facing the extension panel may be further provided, and the coil spring may be installed by connecting the orthogonal extension panel of the first bracket facing each other to the lower end of the second bracket.

In addition, it may be characterized in that a plurality of coil springs are installed side by side vertically for each pair of first and second brackets facing each other.

On the other hand, the construction method of the floating solar power generation device according to an embodiment of the present invention is a method of constructing the above-described floating photovoltaic power generation device, and the cable tray is installed by connecting one side unit unit and the other side unit unit adjacent to each other. However, the front and rear ends of the cable tray are hung below the frame assembly of one unit unit and the lower side of the frame assembly of the other unit unit, respectively, and the front and rear ends of the cable tray are respectively connected to the transverse frame of one unit unit and the other side. It is characterized by its technical configuration that it is connected to the transverse frame of the unit unit with a spring and elastically supported.

The floating photovoltaic power generation device according to the present invention is provided with a cable tray for connecting unit units so that various cables such as transmission cables and communication cables can be safely protected and guided without damage while flexibly responding to the displacement difference between unit units caused by waves. do.

1 is a reference diagram for explaining a cable tray of a floating photovoltaic device according to the prior art
2 is a partial front view showing a connection structure between unit units by a cable tray in a floating photovoltaic device according to an embodiment of the present invention
Figure 3 is an enlarged view of the "A" portion of Figure 2
4 is a partial plan view showing a connection structure between unit units by a cable tray in a floating photovoltaic power generation device according to an embodiment of the present invention
Figure 5 is an enlarged view of the "B" portion of Figure 4
Figure 6 is a perspective view for explaining the configuration of the tray body of the cable tray in the floating photovoltaic device according to an embodiment of the present invention

With reference to the accompanying drawings, a floating photovoltaic device according to embodiments of the present invention will be described in detail. Since the present invention can have various changes and various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific form disclosed, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention. Like reference numbers have been used for like elements throughout the description of each figure. In the accompanying drawings, the dimensions of the structures are shown enlarged than actual for clarity of the present invention, or reduced than actual in order to understand the schematic configuration.

Also, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. Meanwhile, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

<Example>

Figure 2 is a partial front view showing a connection structure between unit units by a cable tray in a floating photovoltaic power generation device according to an embodiment of the present invention, Figure 3 is an enlarged view of the "A" part of Figure 2, Figure 4 is the present invention It is a partial plan view showing a connection structure between unit units by a cable tray in a floating photovoltaic device according to an embodiment of, and FIG. 5 is an enlarged view of the “B” portion of FIG. And Figure 6 is a perspective view for explaining the configuration of the tray body of the cable tray in the floating photovoltaic device according to an embodiment of the present invention.

As shown, the floating photovoltaic power generation device according to an embodiment of the present invention is provided with a cable tray 100A for connecting unit units, and includes a solar panel 10, a plurality of longitudinal frames 20a and transverse frames 20b ) is installed in the form of connecting the cross-coupled frame assembly 30 and unit units composed of a plurality of floats. In particular, the front and rear ends of the cable tray 100A are elastically supported by coil springs 140 with respect to the transverse frame 20b of one unit unit and the transverse frame 20b of the other unit unit, respectively. It is configured to accommodate the difference in relative vertical displacement, horizontal displacement, and rotational displacement between the unit unit on one side and the unit unit on the other side.

As a result, the floating photovoltaic power generation device according to an embodiment of the present invention can safely protect and guide various cables (CA) such as transmission cables, communication cables, and ground cables while flexibly responding to displacement differences between unit units without damage.

Hereinafter, a floating photovoltaic device according to an embodiment of the present invention will be described in detail, focusing on the cable tray 100A for unit connection.

The cable tray 100A is installed in a tray body 110 having a longitudinal guide hole 110b for accommodating and guiding the cable CA, and at the front and rear ends of the tray body 110, respectively. A plurality of coil springs 140 that elastically support the front and rear ends of the tray body 110 by connecting them to the transverse frame 20b of the unit unit, and a first bracket 120 for connecting the coil springs 140 ) and the second bracket 130.

The tray body 110 is formed in the shape of a flat square tube in which the upper and lower widths are narrower than the front and rear widths and the left and right widths. A point to note is that the front and rear ends of the tray body 110 are hung below the frame assembly 30 of one unit unit and the frame assembly 30 of the other unit unit, respectively. As a result, since the cable CA is not exposed between the unit unit on one side and the unit unit on the other side, it is safely protected. In addition, even if the front and rear ends of the tray body 110 are draped to the lower side of the frame assembly 30 of the unit unit, they do not come into contact with the water surface because they are formed in a flat square tube shape with a narrow vertical width. Accordingly, there is an advantage that the cable CA accommodated in the tray body 110 is not submerged in water in the section where the unit units are connected. However, in the case of parts other than the connecting parts between unit units, an auxiliary cable tray 100B made of a simple tube is installed instead of the cable tray 100A for connection according to the embodiment of the present invention to support the cables CA. .

In addition to this, the tray body 110 is made of a detachable cover 110c such that the upper surface can be opened, as shown in FIG. 6 . In the case of the cover 110c, it may be simply bolted to the upper end of the sidewall 110a of the tray body 110 or coupled to be slidable in the forward and backward directions. According to the structure in which the upper surface can be opened by simply lifting or sliding the cover 110c to separate it, the advantage of being able to simply check and repair the condition of the cable CA accommodated along the guide hole 110b at the connection between units there is As described above, in the embodiment of the present invention, since the tray body 110 is configured not to be submerged in water, it is very convenient to immediately perform repair work if necessary after checking the condition of the cable CA inside the guide hole 110b. .

On the side walls 110a located on the left and right of the tray body 110, ribs 111 and 112 for strength reinforcement are installed in the longitudinal direction (front and rear direction or longitudinal direction) along the upper and lower ends of the outer surface, so that the displacement difference between unit units is reduced by waves. It serves to reinforce the strength so that the tray body 110 is not deformed or damaged by the remaining load and impact transmitted after being mostly attenuated by the coil spring 140 at the moment of occurrence.

The first bracket 120 is installed on the side walls 110a located on the left and right sides of the front end of the tray body 110 and on the side walls 110a located on the left and right sides of the rear end. The first bracket 120 includes a side wall bonding panel 121 bonded to the side wall 110a of the tray body 110 at each installation point, and a side wall 110a from the front or rear end of the side wall bonding panel 121. ) Consists of orthogonal extension panels 122 extending orthogonally in the outward direction of the L-shape as a whole. As shown in FIG. 6, the first bracket 120 is stably installed in a form positioned between the strength reinforcing ribs 111 and 112 installed along the upper and lower ends of the sidewall 110a of the tray body 110.

The upper end of the second bracket 130 is fixed to the side of the transverse frame 20b, and the lower end extends to the lower side of the transverse frame 20b to form an orthogonal extension panel 122 of the first bracket 120. It consists of vertical panels 132 facing each other. Further, the second bracket 130 may further include a horizontal panel 131 extending orthogonally from the lower end of the vertical panel 132 toward the first bracket 120 . According to the configuration in which the first bracket 120 and the second bracket 130 are provided, the first bracket 120 and the second bracket 130 are coupled to one end and the other end of the coil spring 140, respectively. The spring module is manufactured and prepared in advance, and then simply bolts the first bracket 120 and the second bracket 130 to the tray body 110 and the transverse side wall 110a of the unit unit at the site. (100A) can be completed.

As described above, the coil spring 140 is installed by connecting the orthogonal extension panel 122 of the first bracket 120 facing each other and the lower end of the vertical panel 132 of the second bracket 130. The coil spring 140 is convenient if a spring module in which the first bracket 120 and the second bracket 130 are coupled to both ends is manufactured, prepared in advance, and then simply installed on site. It is preferable that a plurality of coil springs 140 are vertically spaced apart from each other and installed side by side for each pair of the first bracket 120 and the second bracket 130 . Accordingly, it is possible to increase the elastic support force while connecting the unit units on one side and the unit units on the other side, and it is possible to more effectively attenuate shock and vibration transmitted due to instantaneous displacement between the unit unit on one side and the unit unit on the other side in the middle. Furthermore, the cable tray 100A according to an embodiment of the present invention connects the other side unit unit and the one side unit unit and assists the connecting bracket 40 allowing the displacement difference between the two side unit units, so that the displacement difference between one side unit unit and the other side unit unit is assisted. It can be noted that the shock and vibration transmitted due to the instantaneous displacement are attenuated in the middle while allowing

Although preferred embodiments of the present invention have been described above, the present invention can use various changes, modifications, and equivalents. It is clear that the present invention can be equally applied by appropriately modifying the above embodiment. Therefore, the above description does not limit the scope of the present invention, which is defined by the limits of the following claims.

110: tray body 120: first bracket
130: second bracket 140: coil spring

Claims (10)

In a floating photovoltaic device consisting of a solar panel, a frame assembly in which a plurality of longitudinal frames and a transverse frame are cross-linked, and unit units composed of a plurality of floats are connected to each other,
A cable tray for connecting unit units installed by connecting unit units on one side and unit units on the other side adjacent to each other,
The front and rear ends of the cable tray are elastically supported in a state connected by springs to the transverse frame of one unit unit and the transverse frame of the other unit unit, respectively, so that relative vertical displacement between one unit unit and the other unit unit, horizontal To accommodate the difference in displacement and rotational displacement,
The cable tray has a front end and a rear end hanging below the frame assembly of one unit unit and the frame assembly of the other unit unit, respectively, to receive and guide the cable so that the cable is not exposed between the spaced apart unit unit on one side and the unit unit on the other side. A tray body having a longitudinal guide hole, and a plurality of coil springs installed at the front and rear ends of the tray body to connect and elastically support the front and rear ends of the tray body to the transverse frame. and
The tray main body is formed in the shape of a flat square tube in which the vertical width is narrower than the front and rear widths and the left and right widths, so that the front and rear ends are respectively hung on the lower side of the frame assembly of one unit unit and the lower side of the frame assembly of the other unit unit. do not touch,
Side wall joint panels installed on the left wall and right wall of the front end of the tray body and on the left wall and right wall of the rear end, respectively, and bonded to the side wall of the tray body at each point, and from the front or rear end of the side wall joint panel to the outside of the side wall An L-shaped first bracket made of orthogonally extending orthogonal extension panels is provided, the upper end of which is fixed to the side surface of the transverse frame, and the lower end extends to the lower side of the transverse frame to form an orthogonal extension panel of the first bracket A floating photovoltaic power generation device, characterized in that a second bracket is further provided to face the coil spring and is installed by connecting the orthogonal extension panel of the first bracket facing each other and the lower end of the second bracket. delete delete delete delete According to claim 1,
Floating photovoltaic power generation device, characterized in that the left wall and the right wall of the tray body are installed with ribs for strength reinforcement in the longitudinal direction along the upper and lower ends, respectively. According to claim 1,
The tray body is a floating photovoltaic device, characterized in that made of a detachable cover so that the upper surface can be opened. delete According to claim 1,
A floating photovoltaic power generation device, characterized in that a plurality of coil springs are installed side by side vertically for each pair of first and second brackets facing each other. In the construction method of constructing the floating photovoltaic device of any one of claims 1, 6, 7 and 9,
The cable tray is installed by connecting one unit unit and the other unit unit that are adjacent to each other, and the front and rear ends of the cable tray are hung below the frame assembly of one unit unit and the frame assembly of the other unit unit, respectively, The construction method of the floating photovoltaic device, characterized in that the front and rear ends of the cable tray are connected to the transverse frame of one unit unit and the transverse frame of the other unit unit with springs to elastically support them.

Images