KR102580644B1 - Photovoltaic module and photovoltaic system comprising the same - Google Patents

Abstract

A solar cell module according to an embodiment of the present invention includes a solar cell panel including solar cells; a panel rear supporter located at the rear of the solar panel; It includes a side frame to which the solar panel and the panel rear support are fixed, and at least a portion of the panel rear support is capable of contacting the rear of the solar cell panel.

Description

Solar cell module and solar power generation system including the same {Photovoltaic module and photovoltaic system comprising the same}

The present invention relates to a solar cell module and a solar power generation system including the same. More specifically, it relates to a building-integrated solar cell module in which the solar cell module can function as a building exterior material and a solar power generation system including the same.

Recently, the development of environmentally friendly alternative energy sources and the diversification of future energy sources have emerged as international issues. Under this background, solar cells utilizing solar energy are attracting attention as a promising alternative energy source for the future.

The initial solar power generation project took the form of constructing solar cell modules in forests or mountainous areas, but as problems such as indiscriminate development and environmental damage were pointed out, the need to utilize the roofs or exterior walls of buildings for solar power generation increased. I'm doing it.

When a solar cell module also functions as a building material, it is called a building-integrated solar cell module or BIPV (Building Integrated Photovoltaic) module.

When solar cell modules are attached to high-rise buildings, a high level of wind pressure resistance is required to withstand strong winds.

These solar cell modules have a limitation in that when they are expanded to a large area, their weight becomes heavy, making construction difficult.

The purpose of the present invention is to provide a solar cell module capable of ensuring strong wind pressure resistance and a solar power generation system including the same.

Additionally, the object is to provide a solar cell module that is easy to construct and a solar power generation system including the same.

A solar cell module according to an embodiment of the present invention includes a solar cell panel including solar cells; a panel rear supporter located at the rear of the solar panel; It includes a side frame to which the solar panel and the panel rear support are fixed, and at least a portion of the panel rear support is capable of contacting the rear of the solar cell panel.

According to the present invention, a solar cell module can ensure excellent wind pressure resistance performance.

Additionally, the solar cell module can be fixed while mounted on the support structure, enabling easy construction.

1 is a diagram schematically showing a solar power generation system according to an embodiment of the present invention.
Figure 2 is a diagram showing a solar power generation system in which a solar cell module according to an embodiment of the present invention is installed.
Figure 3 is an exploded perspective view schematically showing a solar cell module according to an embodiment of the present invention.
Figure 4 is a diagram schematically showing an example of a side frame according to an embodiment of the present invention.
Figure 5 is a diagram schematically showing another example of a side frame according to an embodiment of the present invention.
Figure 6 is a cross-sectional view taken along line AA of Figure 1 without the gap cover.
Figures 7 and 8 are diagrams showing the gap between the side frames of Figure 6 being filled by the gap cover part.
Figure 9 is a diagram showing a cross-section of Figure 1 taken along line BB.
Figure 10 is a diagram showing another example of a side frame.
Figure 11 is a diagram showing an example of a first fixed frame.
Figure 12 is a diagram showing another example of the first fixed frame.
Figure 13 is a diagram showing the second fixing frame fixed to the outer wall of the building.
Figure 14 is a diagram showing the first fixing frame in Figure 13 being fixed.
Figures 15 and 16 are diagrams showing a solar cell module according to another embodiment of the present invention.
Figure 17 is a diagram showing a solar cell module according to another embodiment of the present invention.
Figure 18 is a diagram showing a solar cell module according to another embodiment of the present invention.
Figure 19 is a diagram showing a solar cell module according to another embodiment of the present invention.
Figure 20 is a diagram showing a solar cell module according to another embodiment of the present invention.
Figure 21 is a diagram showing an example of the solar cell module of Figure 19 viewed from the rear.
Figure 22 is a diagram showing another example of the solar cell module of Figure 19 viewed from the rear.
Figure 23 is a diagram showing a solar cell module according to another embodiment of the present invention.
Figure 24 is a view showing a panel rear support portion in which a through hole is formed.
Figure 25 is a diagram showing a solar cell module according to another embodiment of the present invention.
Figure 26 is a diagram showing a solar cell module to which the side frame of Figure 25 is applied.

Hereinafter, with reference to the accompanying drawings, a solar cell module and a solar power generation system including the same according to an embodiment of the present invention will be described in detail.

Figure 1 is a diagram showing a solar power generation system according to an embodiment of the present invention. As shown in Figure 1, the solar power generation system includes a solar cell module that generates power from sunlight, an inverter that converts DC power into AC power and transmits it to the home or power plant, and an inverter that converts the DC power generated from the solar cell module. It consists of a solar power connection panel that supplies electricity, a monitoring system that monitors the solar power connection panel, and an energy storage system that is connected to an inverter to store electricity. For reference, the solar power generation system is also called a solar power generation device, and the energy storage system may be omitted.

Figure 2 is a diagram showing the construction of a solar power generation system according to an embodiment of the present invention, and Figures 13 and 14 are diagrams showing part of the construction process of the solar power generation system.

Referring to FIGS. 2, 13, and 14, the solar power generation system according to an embodiment of the present invention includes a solar cell module 10 that produces power from sunlight, and the outer wall 40 or roof of the building. It is directly or indirectly fixed to and includes a first fixing frame 20 on the outside of which the solar cell module is fixed. In addition, it may include a second fixing frame 30 that is directly or indirectly fixed to the outer wall of the building so that the first fixing frame 20 is fixed to the outside. Therefore, the second fixed frame 30 is fixed to the outer wall of the building, the first fixed frame 20 is fixed to the second fixed frame 30, and the solar cell module 10 is fixed to the first fixed frame 20. This can be fixed.

Hereinafter, a solar cell module constituting a solar power generation system according to an embodiment of the present invention will be described.

Figure 3 is an exploded perspective view showing an example of a solar cell module according to an embodiment of the present invention. Referring to Figure 3, the solar cell module 10 according to an embodiment of the present invention includes a solar cell panel 100 and is provided at the rear of the solar cell panel to support the solar cell panel against external force from the front. It includes a panel rear supporter 300 and a side frame 200 coupled to the edge of the solar cell panel 100 and/or the panel rear supporter 300.

As schematically shown in the cross-sectional view of FIG. 6, the solar cell panel 100 includes a solar cell 101 that receives sunlight and generates electricity, and a front panel located in front of the solar cell 101. It includes a member 102, a rear member 103 located behind the solar cell 101, and two or more encapsulants 104.

The front member 102 may be tempered glass or heat-resistant glass, but is not limited thereto.

The rear member 103 may be, for example, a back sheet or glass, but is not limited thereto.

The encapsulant 104 is also called a filler, and an EVA sheet 104 may be used as an example, but is not limited thereto. In this embodiment, the EVA sheet 104 is provided between the rear member 103 and the solar cell 101, and between the solar cell 101 and the front member 102, respectively. The fact that there are two or more EVA sheets 104 means that they are laminated while being disposed at the front and rear of the solar cell 101, respectively, before the laminating process.

Meanwhile, as shown in FIG. 21, the solar panel 100 includes a junction box 110, a cable 120, and a connector 130 that transmit the electrical energy produced by the solar panel to the inverter. Includes more. The junction box 110 may be attached to the rear of the rear member 103 and protrude toward the rear of the rear member 103. A plurality of junction boxes 110 may be provided in one solar cell panel.

The panel rear supporter 300 is provided at least in part to be in contact with the rear of the solar cell panel 100 and supports the solar cell panel 100 from the rear.

The panel rear support portion 300 includes a plurality of front protrusions 310 provided to contact the rear of the solar cell panel 100, a plurality of connection portions 320 extending backward from the front protrusions, and It includes a plurality of rear protrusions 330 located at the rear of the connection part. The plurality of uneven patterns formed by the front protrusion 310, the connection portion 320, and the rear protrusion 330 increase the strength of support against external force from the front, improving the wind pressure resistance performance of the solar cell panel 100. improve

Therefore, when a strong wind blows from the front to the front of the solar cell panel 100, the panel rear supporter 300 can support the solar panel 100 from the rear against the strong wind blowing from the front, thereby Since the thickness of the glass normally used as the front member of the solar cell panel does not need to be thicker, or rather can be made thinner, the increase in weight of the solar cell panel 100 is minimized or reduced while wind pressure resistance performance is improved.

At least a portion of the front protrusion 310 is formed as a flat surface and can make surface contact with the rear of the solar cell panel 100.

Meanwhile, the panel rear support 300 may be attached (adhered) to the rear of the solar cell panel 100. When the panel rear supporter 300 is attached to the rear of the solar cell panel 100, the solar cell panel 100 can be supported even against negative pressure, that is, a force pulling the solar cell panel 100 forward. Therefore, even if a strong negative pressure is applied, the solar cell panel 100 does not get pulled out from the side frame 200.

The panel rear support portion 300 may be formed by molding a metal plate. If the panel rear support portion 300 is formed by forming a thin metal plate, heat dissipation performance may be improved. However, the shape and material of the panel rear support 300 are not limited thereto.

The front protrusion 310, the connection portion 320, and the rear protrusion 330 may have a rounded shape at least in part and be connected in a rounded manner.

Meanwhile, when at least a portion of the front protrusion 310 is made of a plane parallel to the panel support and the connecting portion 320 extends in a direction perpendicular to the direction of extension of the solar cell panel (forward-backward direction), the larger It can support strength.

Meanwhile, the panel rear support portion 300 may include a junction box mounting portion 360 that is partially cut through the front and rear directions in an area corresponding to the junction box 105 (see FIGS. 22 and 23). Since the junction box 110 protrudes behind the rear member 103 of the solar cell panel, a portion of the panel rear support 300 is provided to prevent interference between the junction box 110 and the panel rear support 300. It is cut in the area corresponding to the junction box 110. The junction box mounting portion 360 will be described again later.

Meanwhile, the panel rear support portion may have a shape with a plurality of through holes as shown in FIG. 22. Figure 22 shows another example of the panel rear support portion 300b in which a plurality of through holes 340b are formed. This through hole 340b can promote heat dissipation of the solar cell panel 100 and increase power generation efficiency. The through hole 340b may be formed to be significantly smaller than the junction box 110 or the junction box mounting portion 360.

Meanwhile, the panel rear support portion 300a may have a flat shape, as shown in FIGS. 15 and 16, if a member with appropriate strength to support it from the rear is used. Most of the panel rear support portion 300a is provided in a flat shape, so most of the area may be in surface contact with the rear of the solar cell panel 100.

The side frame 200 will be described below.

The side frame 200 is coupled to the edge of the solar cell panel 100 and/or the panel rear support portion 300, as shown in FIGS. 4 to 9.

Figures 4 and 5 are diagrams showing examples of side frames according to an embodiment of the present invention, and Figures 6 to 9 schematically show a cross section of a solar cell module to which the side frames of Figures 4 and 5 are combined. This is a drawing.

The side frame 200 includes a front cover part 210 that covers the front edge of the solar cell panel, and a side cover part 220 that covers the sides of the solar cell panel 100 and the panel rear support part 300. , 250) and a rear cover part 230 that covers the rear of the solar cell panel 100 and the panel rear support part 300.

The side cover part 220 includes a first side cover part 220 located on the outside and a second side cover part 250 located inward and spaced apart from the first side cover part 220. A corner key (not shown) may be inserted between the first side cover part 220 and the second side cover part 250 to secure two side frames that are orthogonal to each other.

Meanwhile, the side frame 200 connects the front end of the second side cover part 250 and the first side cover part 220 and has an edge support portion ( 240) is further included. Accordingly, the edge support part 240 is provided between the front cover part 210 and the rear cover part 230, and extends from the first side cover part 220 toward the inside (upper side in FIG. 4). It is extended. The edge support portion 240 contacts the rear edge of the solar cell panel 100 and supports the edge of the solar cell panel 100 from the rear. The front cover portion 210, the edge support portion 240, and the first side cover portion 220 form a panel insertion portion 260 that opens toward the inside, and a solar cell panel is installed in this panel insertion portion 260. The edge of (100) is inserted.

Meanwhile, a panel rear support accommodating portion 500, which is a space opening toward the inside, is formed between the solar cell panel 100, the rear cover portion 230, and the side cover portions 220 and 250. More specifically, a panel rear support portion 500 opening toward the inside is formed at the rear of the solar panel 100, inside the second side cover portion 250, and in front of the rear cover portion 230. do. A portion of the edge of the panel rear support 300 is inserted into the panel rear support 500. When the front-to-back width of the panel rear support accommodating portion 500 and the front-to-back width of the panel rear support portion 300 are formed to be approximately equal, the panel rear support portion 300 can be press-fitted without a separate fixing member. Thus, it can be inserted and fixed into the panel rear support receiving portion 500.

Meanwhile, the side frame 200 may further include extension parts 270 and 280 that secure the solar cell module 10 to the outer wall of the building, as shown in FIG. 4 . The extension parts 270 and 280 may include an outer extension part 270 extending outward from the side cover part 220 and a rear extension part 280 extending rearward from the outer extension part.

The outer extension portion 270 is a portion through which a fastening member 50 (see FIGS. 6 to 8) such as a screw or piece passes. The fastening member 50 penetrates the outer extension part 270 and is fixed to the first fixing frame 20, thereby fixing the solar cell module 100 to the fixing frame. The outer extension portion 270 is positioned offset rearward from the front cover portion 210. That is, the forward-facing side of the outer extension portion 270 is located further rear than the forward-facing side of the front cover portion 210.

Figure 6 shows a cross-section taken along line AA in Figure 1 without the gap cover part 60, which will be described later, and shows the solar cell module 10 fixed to the first fixing frame 20. .

Referring to FIG. 6 , the rear extension portion 280 extends rearward from the end of the outer extension portion 270 to enable the solar cell module 10 to be mounted on the first fixing frame 20 .

If the outer extension 270 and the rear extension 280 do not exist, the operator must hold the solar cell module 10 until fastening of the fastening member 50 is completed and ensure that the position does not change while holding. Although care must be taken, due to the presence of the rear extension 280, the worker can hang the solar cell module 10 on the first fixing frame 20 and fasten the fastening member 50, making the work very easy. Lose.

Figures 7 and 8 are cross-sectional views showing gap cover parts 60 and 70 provided in front of the extension parts 270 and 280. Figure 7 shows an example in which silicon 60 is applied as gap covers 60 and 70 on the front of the outer extension 270 and the fastening member 50, and Figure 8 shows metal and plastic as gap covers. , or an example of using a hook-shaped member 70 made of rubber, etc. is shown.

When the gap between the fastening member 50 and/or two adjacent frames is covered with silicon, which is the gap cover part 60 or 70, or a separate cover member, the outer extension part 270 is positioned offset rearward. , vertical alignment of the front surfaces of the gap cover parts 60 and 70 and the front cover part 210 becomes possible, enabling a more elegant construction finish.

Such extension parts 270 and 280 may be provided on all four frames surrounding the solar cell module 10, on the top, bottom, left, and right, or may be provided only on the top and bottom sides and may be omitted from the side frames located on the left and right sides. Additionally, the extension parts 270 and 280 are provided only in the side frame located on the upper side of the solar cell module, and may be omitted in the remaining three side frames.

Figures 5 and 9 show the side frame 200a without the outer extension 270 and the rear extension 280, and Figure 9 shows a cross-section of Figure 1 taken along line BB. .

Compared to the side frame 200 shown in FIGS. 4 and 6 to 8, the side frame 200a shown in FIGS. 5 and 9 has all the remaining configurations except that the extension portions 270 and 280 are omitted. Since they are the same, the same reference numerals are given to the same components and shown.

When all four frames surrounding the solar panel 100 and/or the panel rear support 300 are provided with extensions 270 and 280, all four frames are connected to a first fixed frame described later by fastening members 50. Since it is fixed at (20), a more solid fixation is possible. However, in this case, a first fixed frame 20 extending in the vertical direction must be additionally installed between the first fixed frames 20 extending in the horizontal direction to correspond to the width of the solar cell module 10. .

On the other hand, when the extension parts 270 and 280 are provided only on the side frames on both the upper and lower sides, it is possible to use the extension parts 270 and 280 to be fixed by mounting them on a fixed frame to be described later, making construction easy and saving space on the left and right. becomes available. That is, since more solar cell modules can be installed in the space where the outer extension 270 is located, more power generation is possible on the same outer wall surface.

Meanwhile, when the extension parts 270 and 280 are omitted in the left and right side frames, a sealing part may be provided as shown in FIG. 10 to prevent the intrusion of rainwater and absorb shock caused by external force. Figure 10 shows another example of a side frame 200b provided with a sealing portion. The sealing part may be, for example, a band-shaped rubber having elasticity. The sealing unit may be provided on both the left and right frames, or may be provided on only one of the left or right sides.

Compared to the side frame 200a shown in Figures 5 and 9, the side frame 200b shown in Figure 10 includes a front depression 270b, a pad receiving part 280b, and an elastic pad 290b. There is only a difference in points, but the rest of the composition is the same.

To explain this in more detail, the side frame 200b of FIG. 10 includes a front cover portion 210b that covers the front edge of the solar cell panel, and a side surface of the solar cell panel 100 and the panel rear support portion 300b. It includes side cover parts 220b and 250b that cover, and a rear cover part 230b that covers the rear of the solar cell panel 100 and the panel rear support part 300.

The side frame 200b is provided between the front cover part 210b and the rear cover part 220b, and may further include an edge support part 240b extending inward from the side cover part 220b. You can. The edge support portion 240b contacts the rear edge of the solar cell panel 100 and supports the edge of the solar cell panel 100 from the rear. The front cover portion 210b, the edge support portion 240b, and the side cover portion 220b form a panel insertion portion 260b that is open toward the inside, and the solar panel 100b is installed in this panel insertion portion 260b. ) edge is inserted.

Meanwhile, the side frame 200b may further include an intermediate side cover portion 250b connecting the edge support portion 240b and the rear cover portion 230b.

Meanwhile, the front portion of the side cover portion 220b is depressed inward in the left and right directions to form the front depression 270b. When a plurality of solar cell modules are arranged adjacent to each other on the left and right, this front recessed portion 270a forms a space in which a gap cover portion (for example, silicon) can be accommodated together with the recessed portion 270b of an adjacent solar cell module. do.

Meanwhile, the middle portion of the side cover portion 220b is recessed inward in the left and right directions to form the pad receiving portion 280b. A pad having elasticity such as rubber can be attached to the pad receiving portion 280b. When a plurality of modules are arranged side by side, the elastic pad 290b is responsible for sealing between modules and prevents rainwater, etc. from seeping inside.

Hereinafter, with reference to FIGS. 11 to 14, the fixing frames 20 and 30 according to an embodiment of the present invention will be described.

The fixing frames 20 and 30 include a first fixing frame 20 to which the above-mentioned solar cell module 10 is directly fixed, and a second fixing frame for fixing the first fixing frame 20 to the outer wall 40 of the building. Includes a frame 30.

First, the second fixed frame 30 may be an aluminum extrusion product or a steel square pipe. It is a normal fixing frame used to directly or indirectly fix exterior materials to the exterior wall of a building, and can be fixed to the exterior wall using normal fixing methods.

Figure 11 shows an example of the first fixed frame 20. The first fixing frame 20 includes a rear portion 23, a pair of anteroposterior extensions 22 extending forward from the rear portion 23, and extending in the vertical direction from the front end of the anteroposterior extensions 22. It includes a pair of upper and lower extension parts 21. In addition, it may further include an intermediate connection portion 25 connecting the pair of front and rear extension portions 22.

The rear portion 23 is a portion facing the outer wall of the building and the second fixed frame 30.

The front open space between the pair of the front and rear extension parts 22 forms an extension receiving part 24, into which the front and rear extension parts 280 of the solar cell module are inserted and mounted. Meanwhile, the upper and lower extension parts 21 can be omitted.

Meanwhile, Figure 12 shows another example of the first fixed frame 20a. In Figure 11, the first fixed frame 20a includes a rear portion 23a that is in direct contact with the outer wall of the building or indirectly through a bracket, etc., and a pair of front and rear extensions extending forward from the rear portion 23a ( 22a). The space between the pair of front and rear extension parts 22a forms an extension receiving part 24a, into which the front and rear extension parts 280 of the solar cell module are inserted and mounted. The rear portion 23a extends outward upward and downward from the rear of the anteroposterior extension portion 22a.

However, the shape of the first fixing frame is not limited to the examples shown in Figures 11 and 12.

Hereinafter, with reference to FIGS. 6, 13, and 14, a method of constructing a solar power generation system according to an embodiment of the present invention will be described.

First, as shown in Figure 13, the second fixing frame 30 is installed on the outer wall 40 of the building. The second fixing frame 30 can be fixed using screws, pieces, etc., and can also be fixed using a bracket, etc. For attachment of building exterior materials, the fixing frame may be fixed to an exterior wall using any of the common methods.

After fixing the second fixing frame 30, the first fixing frame 20 is fixed to the second fixing frame 30, as shown in FIG. 14. The first fixing frame 20 is fixed to extend in a direction perpendicular to the extension direction of the second fixing frame 30. The second fixed frame 30 may extend vertically, and the first fixed frame 20 may extend horizontally. There may be various methods of fixing the first fixing frame 20 to the second fixing frame 30, for example, by attaching a fastening member such as a screw or piece to the extension receiving part 24 between a pair of upper and lower extension parts. , 24a), it can be fixed by penetrating both a part of the first fixing frame 20 (eg, the rear part, 23) and a part of the second fixing frame 30. Additionally, the first fixing frame 20 may be fixed to the second fixing frame 30 using an 'ㄱ' shaped bracket. However, when the rear portion extends toward the outside of the middle extension portion 22a, as shown in FIG. 11, the fastening member does not pass through the extension insertion portion 24a, but only passes through the rear portion 23a. 2 Can also be fixed to a fixed frame.

Next, as shown in FIG. 6, the solar cell module 10 is fixed to the first fixing frame 20.

First, the extension parts 270 and 280 of the side frame on the upper side of the solar cell module 10, more specifically the front and rear extension parts 280, are inserted into the extension receiving part 24 of the first fixed frame 20, The solar cell module 10 is mounted on the first fixed frame 20.

Then, the fastening member 50 penetrates the upper and lower extensions 270 of the side frame on the upper side of the solar panel 100 and is fixed through a part of the first fixed frame 20, thereby forming the first fixed frame ( Fix the solar cell module (10) to 20). Then, the upper and lower extension portions 270 of the lower side frame and a portion of the corresponding first fixed frame 20 are penetrated through the fastening member 50, so that the fastening member 50 is adjacent to the first fixed frame 20. ) to be concluded.

Then, gap cover parts 60 and 70 as shown in Figure 7 or 8 are constructed.

Depending on the situation, the side frames on both the left and right sides are fastened using fastening members when using a frame with an extension, and no separate fastening members are required when using a frame without an extension.

In this way, the solar cell modules 10 are connected in the left and right directions, and at this time, the wires of each module must also be connected.

Hereinafter, a solar cell module according to another embodiment of the present invention will be described with reference to FIG. 17.

The solar cell module according to this embodiment is formed by laminating the panel rear support portion 130a integrally with the solar cell panel 100a.

Therefore, the solar cell panel 100a includes a solar cell 101a that receives sunlight and generates electricity, a front member 102a located in front of the solar cell 101a, and a solar cell 101a. ) and a rear panel support portion 105a located behind the rear member 103a.

The front member 102a may be tempered glass or heat-resistant glass, but is not limited thereto. The rear member 103a may be, for example, a back sheet or glass.

The panel rear support 105a may be made of metal, ETFE, or ETCFE.

Additionally, the solar cell panel 100a includes a plurality of three or more encapsulants 104a. An example of the encapsulant 104a may be an EVA sheet 104a, and is also called a filler. The encapsulant 104a is placed between the back member 103a and the solar cell 101a, between the solar cell 101a and the front member 102a, and between the back member 103a and the panel rear support. It can be laminated while being provided between (105a).

If the panel rear support portion 105a is capable of being laminated and has sufficient strength, it may be laminated integrally with the solar cell 101a.

In this embodiment, other components such as side frames constituting the solar cell module are the same as in the previous embodiment, so repeated descriptions are omitted.

Figure 18 is a cross-sectional view showing a solar cell module according to another embodiment of the present invention.

Compared to the example shown in Figure 3, a reinforcement portion 350 is further included. The reinforcement portion 350 extends long in a direction intersecting the extension direction of the uneven shape and is provided at the front or rear of the panel rear support portion 300. A plurality of the reinforcing parts 350 may be arranged to be spaced apart from each other. If the reinforcement portion 350 is fixed to extend in a direction that intersects the uneven direction, for example, a direction that is perpendicular to the uneven direction, the force supporting the panel from the rear can be increased. When the reinforcement part 350 is placed in front of the panel rear support part 300, the reinforcement part 350 is attached to the back of the solar cell panel 100 and the front of the panel rear support part 300, respectively. It can be. Additionally, when the reinforcement part 350 is disposed at the rear of the panel rear support part 300, the reinforcement part 350 may be attached to the rear of the panel rear support part 300.

Figure 19 is a cross-sectional view showing a solar cell module according to another embodiment of the present invention.

As in the previous embodiment, the solar cell module according to this embodiment includes a solar cell panel 100 and a panel rear supporter provided at the rear of the solar cell panel and supporting the solar cell panel against external force from the front ( 300) and a side frame 200b coupled to the edge of the solar cell panel 100 and/or the rear panel support 300.

Here, the configuration of the solar cell panel 100 and the panel rear support portion 300 is the same as in the previous embodiment, so repetitive description of the structure will be omitted.

The side frame 200b in this embodiment includes a front cover portion 210b that covers the front edge of the solar cell panel, and a side cover portion that covers the side surfaces of the solar cell panel 100 and the panel rear support portion 300. It includes cover parts 220b and 250b, and a rear cover part 230b that covers the rear of the solar cell panel 100 and the panel rear support part 300.

The side cover part 220b includes a first side cover part 220b positioned on the outside and a second side cover part 250b positioned spaced apart from the first side cover part 220b inward. A corner key (not shown) can be inserted between the first side cover part 220b and the second side cover part 250b for fixing two side frames that are orthogonal to each other.

Meanwhile, the side frame 200b connects the front ends of the first side cover part 220b and the second side cover part 250b and has an edge support portion ( 240b) is further included. Accordingly, the edge support part 240b is provided between the front cover part 210b and the rear cover part 220b, and extends inward from the first side cover part 220b. The edge support portion 240b contacts the rear edge of the solar cell panel 100 and supports the edge of the solar cell panel 100 from the rear. The front cover portion 210b, the edge support portion 240b, and the first side cover portion 220b form a panel insertion portion that opens inward as in the previous embodiment, and a solar panel ( The edge of 100) is inserted.

Meanwhile, a panel rear support accommodating portion 500, which is a space opening toward the inside, is formed between the solar cell panel 100b, the rear cover portion 230b, and the side cover portions 220b and 250b. More specifically, a panel rear support accommodating portion 500b opening toward the inside is formed at the rear of the solar panel 100b, inside the second side cover portion 250b, and in front of the rear cover portion 230b. do. A portion of the edge of the panel rear support portion 300b is inserted into the panel rear support portion 500b. When the front-to-back width of the panel rear support accommodating portion 500b and the front-to-back width of the panel rear support portion 300b are formed to be approximately equal, the panel rear support portion 300b can be press-fitted without a separate fixing member. Thus, it can be inserted and fixed into the panel rear support receiving portion 500b.

Meanwhile, the side frame 200b may further include an outer extension portion 270b that secures the solar cell module 10 to the outer wall of the building. The outer extension portion 270b extends outward from the side cover portion 220b.

The outer extension portion 270b is a portion through which a fastening member 50, such as a screw or piece, passes. The fastening member 50 penetrates the outer extension portion 270b and is fixed to the first fixing frame 20, thereby fixing the solar cell module 100 to the fixing frame. The extension portion 270b may be a further outward extension of the rear cover portion 230b. That is, the rear surface of the rear cover part 230b and the rear surface of the outer extension part 270b may be on the same plane.

Meanwhile, although not shown, the outer extension part 270b may be located further rear than the rear cover part 230b. That is, the rear of the rear cover portion 230b may be located further rear than the rear of the outer extension portion 270b, and the rear of the rear cover portion 230b and the rear of the outer extension portion 270b may be located further rearward than the rear of the outer extension portion 270b. They may be offset from each other and parallel.

Meanwhile, the gap between two adjacent solar cell modules is filled by the gap cover part 60, thereby preventing water leakage.

As such, the outer extension portion 270b may be provided on all four frames surrounding the solar cell module 10, including the top, bottom, left, and right, or may be omitted from some of the four side frames.

Figure 20 shows the rear extension portion 280b further included in the side frame 200b in the embodiment shown in Figure 19. The rear extension portion 280b extends rearward from the rear cover portion 230b or the outer extension portion 270b. The rear extension part 230b is mounted on the upper part of the first fixing frame 20 when the solar cell module is fixed to the first fixing frame 20 having an angled cross-section, and functions to make work more convenient. do.

Meanwhile, a fixing member 80 is shown in FIGS. 19 and 20. The fixing member 80 is for fixing the panel rear support portion 80 to the side frame 200b, and may be, for example, a screw bolt or the like. . The fixing member 80 can be omitted.

Meanwhile, the panel rear supporter 300b may be attached (adhered) to the rear of the solar cell panel 100.

Figures 21 and 22 are diagrams showing a solar cell module viewed from the rear. The panel rear support portion 300 includes a junction box mounting portion 360. The panel rear support part 300 is not provided in the area corresponding to the junction box 100 at the rear of the solar cell panel 100, and this area becomes the junction box mounting part 360. As shown in FIG. 21, the junction box mounting portion 360 may be formed by cutting a portion of the panel rear support portion 300, and as shown in FIG. 22, the panel rear support portion 300 may be formed by cutting the panel rear support portion 300. It may be formed because it is not provided in some areas behind the solar cell panel 100. That is, at the rear of the solar panel, among the areas inside the four side frames 200, there may be an area that is not covered by the panel rear supporter 300, and is not covered by the panel rear supporter 300. Among the areas that are not covered, the area formed for the passage of the junction box 110, cable 120, and connector 130 becomes the junction box mounting portion 360. The junction box mounting portion 360 is formed to be larger than the junction box 110 to allow the cable 120 and the connector 130 to pass through.

Meanwhile, the rear of the junction box 110 may be covered by a member different from the panel rear support 300, or the shape of a part of the panel rear support 300 may be modified to cover the rear of the junction box 110. there is. In this case, the junction box mounting portion 360 may be a separate member different from the panel rear support portion 300, or may be a part of the panel rear support portion 300 at the rear of the junction box 100 whose shape is modified.

Figure 23 is a cross-sectional view showing a solar cell module according to another embodiment of the present invention.

As in the previous embodiment, the solar cell module according to this embodiment includes a solar cell panel 100 and a panel rear supporter provided at the rear of the solar cell panel and supporting the solar cell panel against external force from the front ( 300) and a side frame 200c coupled to the edge of the solar cell panel 100 and/or the rear panel support 300.

Here, the solar cell panel 100 and the panel rear supporter 300 are the same as in the previous embodiment, so repeated descriptions of their structures will be omitted.

The side frame 200c in this embodiment includes a front cover part 210c that covers the front edge of the panel rear support part 300, and a side cover part 220c that covers the side of the panel rear support part 300. , 250c), and a rear cover portion 230c that covers the rear of the panel rear support portion 300.

The side cover parts 220c and 250c include a first side cover part 220c located on the outside and a second side cover part 250c located spaced apart from the first side cover part 220c inward. . A corner key (not shown) for fixing two side frames perpendicular to each other may be inserted between the first side cover part 220c and the second side cover part 250c.

Meanwhile, the side frame 200b includes a side cover connection part 280c connecting the first side cover part 220c and the second side cover part 250c, and a solar cell module 10 of the building. It may further include an outer extension portion 270c fixed to the outer wall. The outer extension portion 270c extends outward from the first side cover portion 220c. More specifically, it extends outward from the rear end of the side cover portion 220c.

The outer extension portion 270c may have the same shape as the side cover portion connection portion 280c extending further outside the first side cover portion 220c.

The outer extension portion 270c is a portion through which a fastening member such as a screw or piece passes. The fastening member penetrates the outer extension portion 270c and is fixed to the first fixing frame 20, thereby fixing the solar cell module 100 to the fixing frame.

A joint 400 is provided between the solar cell panel 100 and the side frame 200c.

The joint portion 400 serves to bond the rear edge of the solar cell panel 100 of the front cover portion 210c of the side frame 200c to each other.

The joint 400 may include Norton tape, structural silicon, etc.

In the space formed by the front cover portion 210c, the side cover portions 220c and 250c, and the rear cover portion 230c, a panel rear support portion receiving portion 500c opening toward the inside is formed. More specifically, the panel rear support accommodating part 500c is formed at the rear of the front cover part 210c, the front of the rear cover part 230c, and the inside of the second side cover part 250c. A portion of the panel rear support portion 300 is inserted into the space provided.

The portion of the panel rear support portion 300 inserted into the panel rear support accommodating portion 500c may be formed to have a shorter length in the front-to-back direction compared to the portion in contact with the rear of the solar cell panel 100. When the front-to-back length of the portion of the panel rear support portion 300 inserted into the panel rear support accommodating portion 500c is formed to be approximately equal to the width of the panel rear support accommodating portion 500c, no separate fixing member is required. , the panel rear support portion 300 may be inserted and fixed into the panel rear support accommodating portion 500c by interference fitting.

When the side frame has this structure, it does not cover the front edge of the solar panel 100, improving aesthetics, and the panel rear support 300 can support the solar panel 100 from the rear. , wind pressure resistance performance can be improved.

Figures 25 and 26 are diagrams showing a portion of a solar cell module according to another embodiment of the present invention.

In the embodiment shown in FIGS. 25 and 26, compared to the embodiment including FIGS. 4 and 6, the only difference is that the side frame further includes a locking portion, and all other configurations are the same. Therefore, repeated descriptions of the same configuration are omitted.

Referring to FIGS. 25 and 26 , the side frame 200d may further include a locking portion 290 extending in the vertical direction from the rear extension portion 280.

At this time, the rear extension portion 280 extends longer than the length of the upper and lower extension portions 21 of the first fixing frame 20 in the front-to-back direction, so that the locking portion 290 is positioned within the upper and lower extension portions 21. Let it hang on the side.

With this structure, the solar cell module 10 can be more stably mounted on the first fixing frame 20 even before fastening the fastening member 50 during construction, making work easier. .

In explaining the present invention, the thickness or size of some of the components shown in the drawings are exaggerated, omitted, or schematically shown for convenience and clarity of explanation. Additionally, the size of each component does not entirely reflect the actual size.

10: solar module
20, 20a: first fixed frame
21: upper and lower extensions
22, 22a: front and rear extensions
23, 23a: rear part
24, 24a: extension receiving portion
50: fastening member
60: Gap cover part
70: Gap cover part
80: Fixing member
100, 100a: solar panel
101, 101a: solar cell
102, 102a: front member
103, 103a: rear member
104, 104a: Encapsulation material
105a: Panel rear support
200, 200a, 200b, 200c, 200d: side frame
210, 210b: Front cover part
220, 220b: first side cover portion
230, 230b: rear cover part
240,240b: Edge support
250, 250b: second side cover part
260: panel insertion part
270, 270b: outer extension
280b, 280b: rear extension
300, 300a, 300b: Panel rear support
310: front protrusion
320: connection part
330: rear protrusion
340b: Through hole
350: reinforcement part
360: Junction box mounting part
400: joint
500, 500c: Panel rear support receiving portion

Claims (13)

A solar cell module including a solar cell panel and a side frame to which the solar cell panel is coupled;
A first fixing frame that is directly or indirectly fixed to the outside of the building and to which the solar cell module is fixed; and
It includes a fastening member for fixing the solar cell module to the first fixing frame,
The side frame is,
a side cover portion covering a side of the solar cell panel;
a front cover portion covering the front edge of the solar panel;
a rear cover portion covering a rear edge of the solar panel;
an outer extension portion extending outward from the side cover portion;
It further includes a rear extension portion extending rearward from the outer extension portion,
The first fixed frame is,
Posterior fossa;
a pair of front and rear extension parts extending forward from the rear part;
It is formed between the pair of the front and rear extension parts and includes an extension receiving part into which the rear extension part of the side frame is inserted,
The fastening member is,
A solar power generation system in which the solar cell module is fixed to the first fixed frame by penetrating the outer extension of the side frame and being fixed to the front and rear extensions of the first fixed frame.
According to paragraph 1,
The solar cell module,
It further includes a panel rear support located at the rear of the solar panel,
A solar power generation system wherein at least a portion of the panel rear support portion is provided to contact the rear of the solar cell panel.
According to paragraph 2,
The panel rear support is
a front protrusion provided to contact the rear of the solar cell panel;
a connection portion extending rearward from the front protrusion;
A solar power generation system including a rear protrusion located behind the connection portion.
According to paragraph 3,
The solar cell module further includes a panel rear support accommodating portion into which a portion of the panel rear support can be inserted,
The panel rear support receiving portion,
A solar power generation system that is a space formed behind the solar panel, in front of the rear cover, and inside the side cover.
delete delete According to paragraph 1,
The side frame further includes a locking portion that protrudes upward or downward from the rear extension portion and extends.
delete delete According to paragraph 2,
The solar panel is,
solar cells,
a front member positioned in front of the solar cell;
It includes a panel rear support located behind the solar cell,
A solar power generation system in which the solar cell, the front member, and the panel rear support portion are integrally laminated.
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