KR20210117913A - Supporting structure for bifacial solar modules - Google Patents

Abstract

The present invention relates to a support structure for a double-sided solar module and, more specifically, to a support structure for a double-sided solar module which minimizes blocking of reflection light on a rear surface by the structure while supporting a lower end of the double-sided solar module and allows intervals between individual rows or columns of the double-sided solar module to be spaced apart, thereby increasing power generation efficiency by reflection light.

Description

Supporting structure for bifacial solar modules

The present invention relates to a support structure for a double-sided photovoltaic module, and more particularly, while supporting the lower end of the double-sided photovoltaic module, it minimizes blocking of reflected light on the back by the structure, and between each row or column of the double-sided photovoltaic module It relates to a support structure for a double-sided photovoltaic module that can improve the power generation efficiency by reflected light by allowing the spacing of the two-sided solar module.

In general, as fossil fuel reserves are finite and environmental pollution caused by the use of fossil fuels is recognized as a serious problem, recently, interest in solar energy that can respond to sustainable energy supply and environmental regulations is increasing.

This power generation method using solar energy does not require a separate energy or power source, is easy to construct, and has unlimited possibilities because it is not affected by installation restrictions due to environmental problems.

The solar power generation facility uses the photoelectric effect to convert solar energy into electrical energy, which is a solar module, which is an assembly of solar cells, and a plurality of solar modules are fixed in a state suitable for the angle of incidence of sunlight in consideration of light collection efficiency. The development of photovoltaic modules and support structures is very important in order to improve power generation efficiency by including a support structure for stably installing it at an installation site.

Recently, interest in double-sided photovoltaic modules is increasing to improve the amount of power generation using photovoltaic modules. As a prior art, Korean Patent Publication No. 10-2019-0128539 discloses a photovoltaic power generation system using a photovoltaic reflector. The main technical configuration is, as shown in FIG. 1, the bottom surface 10, is installed by the support 21 on the bottom surface 10, and the first solar cell 22 is provided on the top surface, A photovoltaic module 20 provided with a second photovoltaic cell 23 on the lower surface; A solar reflector 30 installed on the bottom surface 10 and reflecting sunlight irradiated to the periphery of the photovoltaic module 20; by including, the first photovoltaic cell 22 is directly irradiated from the sun Power is generated by sunlight, and the second solar cell 23 is characterized in that it is configured to generate power by the sunlight reflected by the solar reflector 30 .

That is, the prior art is characterized in that it is configured to generate electricity from both sides of the solar module 20 by both direct sunlight from the sun and reflected light by the solar reflector 30, but the amount of electricity generated relatively compared to direct sunlight In order to secure this falling reflected light, the distance between the photovoltaic modules 20 is too wide, so that the number of photovoltaic modules 20 that can be installed in a limited space is reduced. On the contrary, there is a problem that the power generation efficiency may decrease.

In addition, in the prior art, since the spacing between the lines of the solar module 20 is too wide, the support 21 for supporting the solar module 20, that is, the support structure must be installed for each row, so that the installation cost is high. There are also problems.

On the other hand, as a prior art related to a support structure for supporting a photovoltaic module, Korean Patent Registration No. 10-1121768 discloses a solar panel supporter. Most of the support structures including the prior art are as shown in FIG. 2 . , It is orthogonal to the support frame installed in the upper and lower directions and comprises a panel holder fixing frame 50 mounted in a plurality of rows on the support frame at intervals that can be mounted with the solar panel 80 .

That is, the conventional support structure is configured to support the solar panel 80 arranged in a plurality of columns and rows, that is, the solar module, but there is no or very narrow gap between the solar modules installed on the support structure. It has a disadvantage that it is not suitable for a double-sided solar module using reflected light.

In addition, the support frame and the fixed frame 50 constituting the conventional support structure, that is, the frames supporting the lower portion of the photovoltaic module block the reflected light reflected on the rear surface of the photovoltaic module, so There is also the problem of slowing the development by

That is, in general, a solar module is composed of a combination of solar panels arranged in a plurality of columns and rows. Not only the output of some solar panels formed, but also the output of the entire solar panel falls evenly, so there is a problem in that the power generation efficiency by the double-sided solar module is significantly reduced.

Therefore, there is an urgent need for a new type of support structure suitable for supporting a double-sided solar module.

1. Republic of Korea Patent Publication No. 10-2019-0128539 (published on November 18, 2019) 2. Republic of Korea Patent Publication No. 10-1121768 (2012. 03. 22. Announcement)

The present invention has been devised in order to solve the problems of the prior art as described above, and an object of the present invention is to support the lower portion of the double-sided solar module with a simple configuration while constituting the support structure, the horizontal frame and the vertical To provide a support structure for a double-sided photovoltaic module that is installed so that the frame is located only under the frame portion of the double-sided photovoltaic module and does not block the sunlight supplied to the rear side of the double-sided photovoltaic module.

In addition, the present invention forms a space portion that allows sunlight to pass between the double-sided photovoltaic modules installed in each row or column by enabling adjustment of the distance between the double-sided solar modules installed to form a plurality of rows and columns It is to provide a support structure for a double-sided photovoltaic module that can sufficiently secure the amount of reflected light used for power generation at the rear of the photovoltaic module.

The present invention for achieving the above objects,

It consists of a support frame fixed to the ground and a horizontal frame and a vertical frame that are connected to and installed on the upper part of the support frame to form a plurality of rows and columns, and support the lower part of the double-sided photovoltaic module consisting of the photovoltaic unit and the frame unit. In the support structure for a double-sided photovoltaic module, the support frame, the horizontal frame and the vertical frame are installed to be positioned only under the frame part of the double-sided photovoltaic module so as not to block the sunlight supplied to the rear side of the double-sided photovoltaic module characterized in that

At this time, the horizontal frame or the vertical frame is installed so that the position can be adjusted, so that a space for allowing sunlight to pass between the adjacent double-sided solar modules is formed to improve the power generation efficiency at the rear of the double-sided solar module It is characterized in that it is configured so that it can be done.

According to the present invention, while supporting the lower end of the double-sided photovoltaic module equipped with photovoltaic cells on both sides, it is possible to minimize the blocking of reflected light by the structure, and to space the distance between each row or column of the double-sided photovoltaic module. It has an excellent effect of improving the power generation efficiency by reflected light.

In addition, according to the present invention, by optimizing the shape of the horizontal frame and fixture that can support and fix the double-sided photovoltaic module, the durability is improved by minimizing the deformation caused by external impacts such as wind or the load of the double-sided photovoltaic module. It additionally has the effect of allowing it to be improved.

1 is a side view showing a solar power generation system using a conventional solar reflector.
Figure 2 is a perspective view showing a conventional solar panel support.
Figure 3 is a plan view showing a simplified general double-sided solar module.
Figure 4 is a view conceptually showing a support structure for a double-sided solar module according to the present invention.
5 is a side view showing a support structure for a double-sided solar module according to the present invention.
Figure 6 is a front view partially showing the support frame of the present invention shown in Figure 4;
Figure 7 (a), (b) is a view showing in detail the installation portion (a, b) of the first and second horizontal frames of the present invention shown in Figure 5.
8 (a), (b) is a view showing in detail the connection portion (c, d) between the support frame and the vertical frame of the present invention shown in FIG.
Figure 9 (a), (b) is a view showing in detail the connection (e, f) between the base and the first and second frames of the present invention shown in Figure 5.
10 is a view conceptually showing another embodiment of a support structure for a double-sided solar module according to the present invention.
Fig. 11 is a side view of the present invention shown in Fig. 10;
Figure 12 is a longitudinal cross-sectional view showing a horizontal frame of the present invention shown in Figure 11.
13 is an enlarged perspective view of a portion 'g' of the present invention shown in FIG. 11;
14 is an enlarged longitudinal cross-sectional view of part 'h' of the present invention shown in FIG. 10;

Hereinafter, preferred embodiments of a support structure for a double-sided solar module according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a simplified plan view showing a general double-sided solar module, FIG. 4 is a view conceptually showing a support structure for a double-sided solar module according to the present invention, and FIG. 5 is a support for a double-sided solar module according to the present invention It is a side view showing the structure, FIG. 6 is a front view partially showing the support frame of the present invention shown in FIG. 4, and (a) and (b) of FIG. 7 are the first and second horizontal frames of the present invention shown in FIG. It is a view showing in detail the installation part (a, b) of Fig. 8 (a), (b) is a connection part (c, d) between the support frame and the vertical frame of the present invention shown in Fig. 5 in detail Figure 9 (a), (b) is a view showing in detail the connection (e, f) between the base and the first and second frames of the present invention shown in Figure 5, Figure 10 is in the present invention It is a view conceptually showing another embodiment of a supporting structure for a double-sided solar module according to the present invention, Figure 11 is a side view of the present invention shown in Figure 10, Figure 12 is a longitudinal sectional view showing a horizontal frame of the present invention shown in Figure 11, 13 is an enlarged perspective view of part 'g' of the present invention shown in FIG. 11, and FIG. 14 is an enlarged longitudinal cross-sectional view of part 'h' of the present invention shown in FIG.

The present invention minimizes blocking of reflected light by a structure while supporting the lower end of the double-sided solar module, and improves the power generation efficiency by reflected light by allowing the spacing between each row or column of the double-sided solar module to be spaced apart It relates to a support structure 100 for a double-sided photovoltaic module (hereinafter referred to as a 'support structure 100') to allow a double-sided photovoltaic module (1) to which the present invention is applied.

The double-sided photovoltaic module 1 uses only the direct sunlight from the sun to generate electricity from the front of the module, unlike the conventional photovoltaic module, which is installed on the ground, etc., using the reflected light reflected by the reflecting means. It is configured so that power generation can be made even at the rear of the module, and when such a double-sided photovoltaic module 1 is used, the efficiency of about 10 to 30% compared to a single-sided photovoltaic module, that is, a photovoltaic module that uses only the front side for power generation It has the advantage of improving the

This double-sided solar module 1 is made in the same shape as a single-sided solar module, and as shown in FIG. 3 , the central part has a plurality of solar panels that generate electricity from both the front and the rear using sunlight. It consists of a photovoltaic unit (2) installed to form a row and column, and the edge is composed of a frame unit (3) installed along the edge of the photovoltaic unit (2).

The present invention relates to a support structure 100 for supporting the lower portion of the double-sided photovoltaic module 1 configured as described above, and the configuration is as shown in FIGS. 4 and 5, largely support frame 110, horizontal It consists of a frame 120 and a vertical frame 130 .

More specifically, the support frame 110 is fixed to the ground and serves as a bridge for supporting the support structure 100 according to the present invention, and the horizontal frame 120 and the vertical frame 130 are support frames. It is connected to the upper end of the 110 and serves to allow a plurality of double-sided photovoltaic modules 1 to be seated and fixed to the upper part.

That is, the support frame 110 is fixed in the vertical direction to form a plurality of rows and columns, and is formed to increase in height from the front to the rear in consideration of the installation angle of the double-sided solar module 1, The support frames 110 installed in the row are all installed at the same height.

Next, the vertical frame 130 is vertically connected to the upper portion of the support frame 110 installed in the same row, and is formed in a rail shape in which a groove is formed in the upper central portion in the longitudinal direction, and is horizontally installed on the upper portion of the vertical frame 130 . It is configured so that the installation position of the frame 120 can be easily changed.

Next, the horizontal frame 120 is installed to form a plurality of rows in the horizontal direction on the upper portion of the vertical frame 130 to serve to support the upper end and the lower end of the double-sided solar module (1), the vertical frame 130 ) in the same way as in the longitudinal direction, the first and second fixtures 122 and 124 to be described later, that is, the upper and lower ends of the double-sided photovoltaic module 1, are formed in the shape of a rail with a groove formed in the upper center portion to the horizontal frame 120. It is configured so that the installation and position movement of the first and second fixtures 122 and 124 for the purpose can be made easily.

As described above, the support frame 110, the vertical frame 130, and the horizontal frame 120 constituting the support structure 100 according to the present invention are all located only under the frame part 3 of the double-sided solar module 1 It is installed so that the support structure 100 does not block the sunlight supplied to the rear surface of the double-sided photovoltaic module 1, that is, the reflected light.

That is, as described above, the frames constituting the conventional support structure block the reflected light reflected on the rear surface of the double-sided solar module 1, thereby reducing power generation by the reflected light from the rear surface of the double-sided solar module 1 In contrast to that there was a problem, in the present invention, the vertical frame part 3 and the horizontal frame part 3 and the vertical frame part 3 of the double-sided photovoltaic module 1 cross the support frame 110 . The vertical frame 130 is installed to be positioned below the vertical frame part 3 of the double-sided solar module 1, and the horizontal frame 120 is a double-sided solar module. (1) installed so as to be located in the lower part of the horizontal frame part 3 so as not to cover the rear photovoltaic unit 2 of the double-sided photovoltaic module 1, so that it is reflected on the back side of the double-sided photovoltaic module 1 It is configured to minimize blocking of reflected light.

On the other hand, a horizontal frame supporting the lower end of the double-sided photovoltaic module (1) installed in even rows of the horizontal frame 120 supporting the upper end and the lower end of the double-sided photovoltaic module (1) installed to form a plurality of rows and columns (120) and the horizontal frame 120 supporting the upper end of the double-sided photovoltaic module (1) installed in the adjacent odd row is installed in the lower and odd rows of the double-sided photovoltaic module (1) installed in the even row The space portion 150 is spaced apart to be formed between the upper ends of the double-sided photovoltaic module 1, and the space portion 150 serves to allow sunlight to pass therethrough.

That is, when the gap between the double-sided photovoltaic modules 1 installed on the support structure 100 is not formed at all or very narrow, the double-sided photovoltaic module 1 ), even if a reflecting means such as a reflector is installed to reflect toward the rear surface of the support structure 100, the rear surface of the double-sided photovoltaic module 1 installed in the center and rear of the support structure 100 does not properly reflect sunlight, By forming a space 150 that allows sunlight to pass through by increasing the spacing between the lines of the photovoltaic module 1, reflected light can reach the entire rear surface of the double-sided photovoltaic module 1, thereby increasing the power generation efficiency at the rear It is designed to be improved.

At this time, all the horizontal frames 120 except for the horizontal frame 120 installed at the top and bottom are spaced apart to form a space 150 to allow sunlight to pass between all rows of the double-sided solar module 1 . However, if the space portion 150 is formed between all rows, the number of double-sided solar modules 1 that can be installed in a limited space is reduced, and power generation efficiency may be lowered. It is preferable to form the space portion 150 only between the double-sided photovoltaic module 1 installed in even rows and the double-sided solar module 1 installed in the odd row positioned below the same.

In addition, a horizontal frame 120 supporting the lower end of the double-sided solar module 1 installed in an even row, and a horizontal frame 120 supporting the upper end of the double-sided solar module 1 installed in an odd row adjacent thereto ), that is, the distance between the spaces 150 is preferably set to be about 30 to 50 cm, because the reason is that when the distance between the spaces 150 is less than 30 cm, the space 150 Since the width of the sunlight passing through is narrow, the reflected light cannot reach the entire rear surface of the double-sided solar module 1, and there is a risk that the power generation efficiency may decrease, and the distance between the space parts 150 exceeds 50 cm. This is because the space 150 is unnecessarily enlarged and the number of installations of the double-sided photovoltaic module 1 is reduced, so that the power generation efficiency in a limited space is reduced.

As described above, the horizontal frame 120 is installed on the upper portion of the vertical frame 130 made of a rail shape and is configured so that its installation position can be easily changed, so that the supporting structure 100 according to the present invention is installed. The space between the space units 150 may be adjusted by changing the installation position of the horizontal frame 120 according to the location, that is, the slope or altitude of the ground and the season.

In addition, although not shown, between the double-sided solar modules 1 installed in each row by configuring so that the position of the remaining vertical frames 130 except for the vertical frame 130 at the left and right ends of the vertical frame 130 is adjustable. The space portion 150 may be configured to be formed between the rows and the rows of the double-sided solar module (1) by allowing the interval of the to be adjusted.

Even when formed between the rows and columns of the double-sided solar module 1 as described above, when the double-sided solar module 1 is installed in the horizontal direction as shown in FIG. 4, the space unit 150 is A place to install the support structure 100, such as such that the space 150 is formed every 3 or 4 rows when the double-sided solar module 1 is installed in the vertical direction as shown in FIG. It goes without saying that the formation position of the space 150 and the spacing between the space 150 can be adjusted according to the installation direction of the double-sided solar module 1 .

Hereinafter, the configuration of the support structure 100 according to the present invention will be described in more detail with reference to the accompanying drawings.

First, the support frame 110 includes a base 112, a first frame 114, and a second frame 116, wherein the base 112 is fixed to the ground in a vertical direction to install the entire support structure. As a function of supporting the 100 , as shown in FIG. 5 , a screw-type fixed anchor or screw pile installed to penetrate the ground, a concrete foundation, or the like may be used as the base 112 .

At this time, the base 112 is the base 112 is located at the lower part of the frame part 3 in consideration of the horizontal width or the vertical width of the double-sided solar module 1 to be installed on the upper part of the support structure 100 . installed at regular intervals.

Next, the first frame 114 is connected to the upper portion of the base 112 in the vertical direction, that is, in the same direction as the base 112 so that the vertical frame 130 can be connected and installed at the top thereof, The second frame 116 is connected to the upper portion of the base 112 so as to be inclined, and serves to support the lower portion of the vertical frame 130 .

In more detail, the lower ends of the first and second frames 114 and 116 are installed on the upper portion of the base 112 by the fastening means f, as shown in (a) and (b) of FIG. 9 . The first connection frame 113 is fastened and fixed to the upper portion of the base 112, respectively, connected in the vertical direction and the oblique direction, and the upper ends of the first and second frames 114 and 116 are shown in FIG. 8 (a), (b) As shown in ), the second and third connection frames 115 and 117 that are fixedly installed on the vertical frame 130 by the fastening means (f) are respectively fastened and fixed to support the lower part of the vertical frame 130 . has been

On the other hand, as shown in FIG. 6 , the support frame 110 is a pair of third frames ( 118), the third frame 118 prevents deformation of the first frame 114 by dispersing the load transferred from the vertical frame 130 to the first frame 114, and durability It serves to improve

At this time, as shown in FIG. 5 , the first frame 114 installed in the front of the support structure 100 has a relatively short length compared to the first frame 114 installed in the rear, so that the load distribution effect is not large. , When the third frame 118 is connected and installed between the first frame 114 installed in front of the support structure 100, the third frame 118 is supplied to the rear surface of the double-sided solar module 1 Since there is a risk of blocking reflected light, it is preferable to install the third frame 118 only between the first frames 114 installed at the rear of the support structure 100 .

In addition, although not shown, the first frame 114 installed in front of the support structure 100 may be configured to be adjustable in length so that the installation angle of the double-sided solar module 1 can be adjusted, of course. am.

Next, the vertical frame 130 is installed in the vertical direction to be supported by the first and second frames 114 and 116 of the support frame 110, and as described above, in the shape of a rail having a groove formed in the center of the upper surface. It is configured to support the horizontal frame 120 installed thereon and at the same time to be able to easily change the installation position of the horizontal frame 120 installed in the horizontal direction on the vertical frame 130 .

At this time, the width of the vertical frame 130 is made to be less than twice the width of the double-sided photovoltaic module frame part 3, and to the rear side of the double-sided photovoltaic module photovoltaic unit 2 by the vertical frame 130 . It is configured so that the supplied reflected light is not blocked.

Next, the horizontal frame 120 is installed in the horizontal direction on the upper portion of the vertical frame 130 to be configured to fix and support the double-sided solar module 1 installed on the upper portion, the first or second to be described later. It is fixedly installed on the vertical frame 130 made of a rail shape by two fasteners 122 and 124 .

At this time, the horizontal frame 120 can be divided into first and second horizontal frames (120a, 120b) made of different shapes, the first horizontal frame (120a) is a double-sided solar module installed in odd rows Installed to support the lower ends of the double-sided solar modules (1) installed in the upper and even rows of (1), respectively, the second horizontal frame (120b) is a double-sided solar module (1) installed in odd rows It is installed so as to simultaneously support the lower end and the upper end of the double-sided photovoltaic module (1) installed in even rows.

As described above, both the first and second horizontal frames 120a and 120b are configured to support the double-sided solar module 1 only under the frame portion 3, of course.

First, as shown in (a) of FIG. 7 , the first horizontal frame 120a has a rectangular shape that becomes wider toward the bottom, because the overall weight of the first horizontal frame 120a is reduced. This is to increase the contact area with the vertical frame 130 while making it possible to improve the supporting force for the double-sided solar module 1 .

In addition, a first bent portion 121a is bent outwardly at the lower end of the first horizontal frame 120a, and the first bent portion 121a is configured to attach the first horizontal frame 120a to the vertical frame 130. The fastener 140 for fastening and fixing serves to be engaged.

That is, after placing the first horizontal frame 120a on the vertical frame 130 at the desired location, the fastening means ( By fastening and fixing by f), the first horizontal frame 120a is configured to be fixedly installed on the vertical frame 130 at a desired position.

And, a first locking jaw 123a is formed to protrude upwardly from the upper end of the first horizontal frame 120a and is configured to support the upper end or the lower end of the double-sided solar module 1, and the first locking jaw A support piece 125a for supporting the lower portion of the double-sided photovoltaic module frame portion 3 is formed to protrude outward from the lower portion of the (123a).

At this time, in order not to block the reflected light supplied to the rear surface of the double-sided solar module 1 , the protruding length of the support piece 125a should be shorter than the width of the frame part 3 .

Next, the second horizontal frame 120b, as shown in Fig. 7 (b), is made of a rectangular shape with a longitudinal cross-section consisting of a double structure, which is deformed by an external impact such as wind or a double-sided solar module ( This is to minimize the deformation caused by the load of 1).

That is, as described above, the second horizontal frame 120b must simultaneously support the lower end of the double-sided photovoltaic module 1 installed in the odd-numbered row and the upper end of the double-sided photovoltaic module 1 installed in the even-numbered row. In addition, the present invention is such that the support frame 110 , the horizontal frame 120 and the vertical frame 130 constituting the support structure 100 are located only under the frame part 3 of the double-sided solar module 1 . Since there is a technical problem in not blocking the sunlight supplied to the rear side of the double-sided solar module 1 by installing it, the vertical frame 130 supporting the lower portion of the horizontal frame 120 compared to conventional support structures. Since the number or width of the horizontal frame 120 directly supporting the double-sided solar module 1 is reduced, the load received by the horizontal frame 120 directly supporting the double-sided photovoltaic module 1 is increased compared to the prior art. It is designed to minimize deformation caused by

At this time, by protruding the reinforcement part 125b on the inner wall of the vertical part of the second horizontal frame 120b having the double structure as described above, the load bearing capacity of the second horizontal frame 120b may be further improved. have.

In addition, at the lower end of the second horizontal frame 120b, a second bent portion 121b for fastening and fixing the second horizontal frame 120b to a desired position of the vertical frame 130 using a fastener 140 . ) is formed to protrude outward, and at the upper end of the second horizontal frame 120b, a second locking protrusion 123b for supporting the lower end and upper end of the double-sided solar module 1 is formed to protrude, which is the first Since the configuration and role of the first bent portion 121a and the first locking protrusion 123a of the horizontal frame 120a are the same, a detailed description thereof will be omitted.

Next, a plurality of first fixtures 122 are installed on the upper portion of the first horizontal frame 120a, and the first fixture 122 is configured to install the double-sided solar module 1 on the first horizontal frame 120a. It plays a role in fixing.

' 형상으로 이루어져 체결수단(f)에 의해 제1가로프레임(120a) 상에 고정 설치되는데, 상단 수평부는 양면 태양광 모듈(1)의 프레임부(3) 상에 안착되고, 우측 수직부는 상기 프레임부(3)의 측면에 밀착되어 양면 태양광 모듈(1)을 고정시킬 수 있도록 구성되어 있다.That is, as shown in (a) of Figure 7, the first fixture 122 is '

' shape and is fixedly installed on the first horizontal frame 120a by the fastening means (f), the upper horizontal part is seated on the frame part 3 of the double-sided solar module 1, and the right vertical part is the frame It is configured to be in close contact with the side surface of the part 3 to fix the double-sided solar module 1 .

In addition, a through hole (not shown) through which the fastening means (f) is through-coupled is formed in the lower horizontal portion of the first fixture 122, so that the first fixture 122 is connected to the first horizontal frame by the fastening means (f). The lower end of the fastening means (f) is received inside the receiving groove (129) formed on the upper portion of the first horizontal frame (120a) so as to be fixedly installed on the (120a), so that the fastening means (f) is separated It is designed to prevent

' 형상으로 이루어진다.And, a plurality of second fixtures 124 are similarly fastened to the upper portion of the second horizontal frame 120b so that the double-sided solar module 1 can be fixed on the second horizontal frame 120b. , The second fixture 124 is, as shown in (b) of Figure 7, '

' It is made of shape.

That is, the upper horizontal portion of both sides of the upper frame portion ( 3) is seated on each, both vertical portions are configured to be in close contact with the side surfaces of the frame portion 3 to fix the double-sided solar modules 1 supported by the second horizontal frame 120b.

In addition, a through hole (not shown) through which the fastening means (f) is through-coupled is formed in the lower horizontal portion of the second fixture 124 so that the second fixture 124 is connected to the second horizontal frame by the fastening means (f). To be fastened and fixed on the (120b), similarly, the lower end of the fastening means (f) is accommodated inside the receiving groove (129) formed in the upper portion of the second horizontal frame (120b) of the fastening means (f) departure can be prevented.

On the other hand, according to another embodiment of the support structure 100 according to the present invention, as shown in FIGS. 10 and 11, may be configured to support the lower portion of the double-sided solar module 1 installed in the vertical direction. However, even in this case, the support structure 100 includes a support frame 110 , a vertical frame 130 , and a horizontal frame 120 , and the support frame 110 constituting the support structure 100 , the vertical Both the frame 130 and the horizontal frame 120 are installed so as to be located only under the frame part 3 of the double-sided solar module 1 .

In addition, as in the above-described embodiment, that is, in the embodiment in which the double-sided solar module 1 is installed in the horizontal direction, a space portion that allows sunlight to pass between rows or columns of the double-sided solar module 1 (not shown) may be formed, in consideration of the size when the double-sided solar module 1 is installed in the vertical direction, it is preferable to form a space portion between each row or to form a space portion at intervals of 3 columns .

Conventionally, when the solar module is installed in the vertical direction, a horizontal frame 120 is additionally installed in the central part of the solar module to support the solar module. When the horizontal frame 120 is installed, there is a problem in that a shadow by the horizontal frame 120 , that is, a portion where reflected light cannot reach, occurs on the rear photovoltaic unit 2 .

In addition, when the horizontal frame 120 is installed only on the frame part 3 of the double-sided solar module 1 as in the present invention, the distance between the horizontal frames 120 becomes too far apart, so that the horizontal frame 120 The bearing capacity of the double-sided solar module (1) is lowered by the double-sided solar module (1), and there is a fear that a sagging phenomenon may occur in the central portion of the double-sided solar module (1). A plurality of fixing clamps 160 were installed between both sides of the two-sided photovoltaic module 1 adjacent in the horizontal direction to support the double-sided photovoltaic module 1 .

That is, the fixing clamp 160 is fixedly installed between the frame parts 3 of the double-sided photovoltaic module 1 adjacent in the horizontal direction to support the double-sided photovoltaic module 1 and at the same time to support the double-sided photovoltaic module 1 ) serves to prevent deformation, and its configuration includes a fastening part 162 and a clamping part 164 as shown in FIG. 14 .

' 형상으로 이루어지는 한 쌍의 부재를 포함하여 이루어진다.More specifically, the fastening part 162 serves to fasten the fixing clamp 160 so that it can be fixedly installed between the frame parts 3 of the double-sided photovoltaic module 1 adjacent in the horizontal direction, '

' It consists of a pair of members made of a shape.

' 형상의 체결부(162) 중앙에는 체결홀(미도시)이 형성되어 체결수단(f)이 삽입 결합될 수 있도록 구성되어 있고, 한 쌍의 체결부(162)는 중앙부 외측면이 서로 맞닿는 형태로 위치된 상태, 즉, 양 측면에 후술할 클램핑부(164)가 삽입될 수 있는 공간을 형성시킬 수 있는 형태로 위치된 상태에서 체결수단(f)에 의해 체결 고정되어 고정클램프(160)가 수평 방향으로 이웃하는 양면 태양광 모듈(1)의 프레임부(3) 사이에 고정 설치될 수 있도록 한다.At this time, the '

A fastening hole (not shown) is formed in the center of the '-shaped fastening part 162 so that the fastening means (f) can be inserted and coupled. The fixing clamp 160 is fastened and fixed by the fastening means (f) in a state in which the clamping parts 164 to be described later can be inserted on both sides of the position, that is, in a state where they can be inserted. To be able to be fixedly installed between the frame parts 3 of the double-sided solar module 1 adjacent in the horizontal direction.

Next, the clamping part 164 is inserted into the space formed on both sides of the fastening part 162, respectively, and serves to fix and support the frame part 3 of the double-sided solar module 1 It is made of an elastic material.

That is, an insertion groove 164a into which the frame portion 3 of the double-sided photovoltaic module 1 is inserted is formed in the clamping portion 164, and a hollow portion 164b is formed in the lower portion of the insertion groove 164a. is formed and the hollow part 164b is compressed by the fastening of the fastening part 162 while pressing the insertion groove 164a to insert the frame part 3 of the double-sided solar module 1 inserted inside the insertion groove 164a. It is designed to be fixed and supported.

Double-sided sunlight by the configuration of the fixing clamp 160 as described above, that is, by a configuration that can fix and support the frame part 3 of the double-sided photovoltaic module 1 by the clamping part 164 made of an elastic material The same fixing clamp 160 can be used regardless of the thickness of the module 1, and it is possible to absorb the impact applied to the double-sided photovoltaic module 1 by external factors such as wind to some extent, as well as double-sided solar Even if micro deformation such as sagging or thermal deformation occurs in the frame portion 3 of the optical module 1 , the frame portion 3 is firmly fixed through deformation of the hollow portion 164b formed in the clamping portion 164 . be able to maintain

Next, since the configuration of the support frame 110 and the vertical frame 130 in this embodiment is the same as that of the above-described embodiment, a detailed description thereof will be omitted.

In addition, as shown in FIG. 12 , the horizontal frame 120 in this embodiment may have a shape that has a slightly narrower lower portion, and a bent portion 121 is formed at the lower end of the horizontal frame 120 to As shown in, the horizontal frame 120 by the fastener 140 is configured to be fixed on the vertical frame 130 made of a rail shape.

In addition, in the upper end of the horizontal frame 120, similarly to the above-described second horizontal frame (120b), a clasp 123 for supporting the upper and lower ends of the double-sided solar module (1) and the double-sided solar module (1) ) is formed with a support piece 125 for supporting the lower portion of the frame portion 3, and a fastening means ( A receiving groove 129 into which the lower part of f) is inserted and fixed is formed.

On the other hand, both sides of the horizontal frame 120 may be formed with a force rib portion 127 of a concave-convex shape in the longitudinal direction. It improves support and prevents deformation.

Next, as in the above-described embodiment, the first or second fixtures 122 and 124 are fastened to the upper portion of the horizontal frame 120 to fix the double-sided solar module 1 installed on the horizontal frame 120 . Although not shown, the first fixture 122 is fastened and fixed to the upper part of the horizontal frame 120 supporting one of the two-sided solar modules 1 of the horizontal frame 120, and the two-sided solar Of course, the second fixture 124 may be fastened to the upper portion of the horizontal frame 120 supporting the optical module 1 at the same time.

Therefore, according to the support structure 100 for a double-sided photovoltaic module according to the present invention as described above, while supporting the lower end of the double-sided photovoltaic module 1 provided with photovoltaic cells on both sides by the structure 100 It is possible to minimize the blocking of the reflected light, and to space the distance between each row or column of the double-sided solar module 1 to improve the power generation efficiency by the reflected light, as well as to support the double-sided solar module 1 And by optimizing the shape of the horizontal frame 120 and the fixture that can be fixed to minimize the deformation due to external impact such as wind or the deformation due to the load of the double-sided photovoltaic module (1) to improve durability, etc. to have various advantages of

Although the above-described embodiments have been described with respect to the most preferred examples of the present invention, it is not limited to the above-described embodiments, and it is apparent to those skilled in the art that various modifications are possible without departing from the technical spirit of the present invention.

The present invention relates to a support structure for a double-sided photovoltaic module, and more particularly, while supporting the lower end of the double-sided photovoltaic module, it minimizes blocking of reflected light on the back by the structure, and between each row or column of the double-sided photovoltaic module It relates to a support structure for a double-sided photovoltaic module that can improve the power generation efficiency by reflected light by allowing the spacing of the two-sided solar module.

1: double-sided photovoltaic module 2: photovoltaic power generation unit
3: frame part 100: support structure
110: support frame 112: base
113: first connection frame 114: first frame
115: second connection frame 116: second frame
117: third connection frame 118: third frame
120: horizontal frame 120a: first horizontal frame
120b: second horizontal frame 121: bent part
121a: first bent part 121b: second bent part
122: first fixture 123: locking jaw
123a: first locking jaw 123b: second locking jaw
124: second fixture 125, 125a: support piece
125b: reinforcement part 127: strength part
129: receiving groove 130: vertical frame
140: fastener 150: space part
160: fixing clamp 162: fastening part
164: clamping part 164a: insertion groove
164b: hollow part f: fastening means

Claims (2)

It consists of a support frame fixed to the ground and a horizontal frame and a vertical frame that are connected and installed on the upper part of the support frame to form a plurality of rows and columns, and support the lower part of the double-sided photovoltaic module consisting of a photovoltaic unit and a frame unit. In the support structure for a double-sided solar module,
The support frame, the horizontal frame and the vertical frame are installed so as to be located only under the frame portion of the double-sided solar module, the support structure for a double-sided solar module, characterized in that configured not to block the sunlight supplied to the rear of the double-sided solar module .
The method of claim 1,
The horizontal frame or the vertical frame is installed so that the position can be adjusted, so that a space is formed to allow sunlight to pass between the adjacent double-sided solar modules, thereby improving the power generation efficiency at the rear of the double-sided solar module. A support structure for a double-sided solar module, characterized in that it is configured to be so.

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