KR20210075267A - Solar Cell Module - Google Patents

Abstract

The present invention relates to a solar cell module and, more specifically, to a flexible solar cell module capable of variously disposing a plurality of sub-modules and enabling more efficient space utilization and increase of power generation efficiency. According to the present invention, the solar cell module comprises: a plurality of solar cell sub-modules; a sub-module connecting means for allowing the plurality of solar cell sub-modules to be flexibly connected to adjacent sub-modules; and a sub-module spacing means coupled to the plurality of sub-modules to adjust and fix a bending angle and a distance between the plurality of sub-modules when the plurality of sub-modules are bent.

Description

Solar Cell Module

The present invention relates to a solar cell module, and more particularly, to a solar cell module in which a plurality of sub-modules constituting a solar cell module can be arranged to be curved, thereby enabling more efficient space utilization and improvement of power generation efficiency.

In general, the solar cell module connects the cell and the electrode wiring of the cell with a copper ribbon, followed by a back sheet, EVA (Ethylene-Vinyl Acetate), solar cell, EVA (Ethylene-Vinyl Acetate), and cover glass in the order of It is completed through the steps of laminating and pressing, finishing the edges of the pressed laminate with an aluminum frame, and installing a junction box for connecting the copper ribbon to the output cable on the back side.

A conventional solar cell module is generally manufactured by connecting a plurality of unit cells in series and/or in parallel and arranging them in the form of a large-area flat plate. This type of solar cell module has disadvantages in that it is difficult to output a lot of output in a narrow space, it is difficult to re-absorb the reflected light reflected from each sub-module, and transport and storage are cumbersome.

On the other hand, as shown in the following patent documents, a structure for facilitating assembly and separation between sub-modules constituting a solar cell module is disclosed. A solar cell module having a structure capable of increasing power generation efficiency and re-absorbing light reflected from a sub-module is not disclosed.

Republic of Korea Patent Publication No. 10-1730562

An object of the present invention to solve the problems according to the prior art is to increase the surface area on which sunlight is incident compared to the conventional planar module, thereby increasing the light receiving area and reducing the installation space, and storing the sub-module It is to provide a solar cell module that can be folded and stored.

In order to solve the above technical problem, the present invention provides a plurality of solar cell sub-modules, a sub-module connecting means for flexibly connecting the plurality of solar cell sub-modules to an adjacent sub-module, and the plurality of sub-modules There is provided a solar cell module coupled to a sub-module spaced means for fixing the bending angle and the distance between the plurality of sub-modules when the plurality of sub-modules are bent.

By the spacer means, the plurality of sub-modules can be arranged to be bent at various angles, and more solar cells can be arranged in the same space compared to the planar arrangement type, so that the power generation efficiency per space can be increased do. In addition, since the plurality of sub-modules are foldable to each other, if folded separately from the spacer means, or fixed by increasing the bending angle as much as possible while fixed to the spacer means, the volume of the solar cell module can be reduced, so storage or transport is easy become more convenient

In addition, according to an embodiment of the present invention, it may further include a mounting means for mounting the sub-module spacing means.

The mounting means functions to allow the sub-module spacing means to be properly disposed in the space.

In addition, according to one embodiment of the present invention, the spacer means, a plurality of support rods arranged to be spaced apart by a predetermined distance, one or more spacer members for adjusting the spacing between the plurality of support rods, and the one or more spacer members It includes one or more fixing members for maintaining the adjusted spacing, and the sub-modules may be flexibly coupled to the plurality of support rods.

The spacing means makes it possible to easily adjust the distance between the plurality of sub-modules and the bending angle.

In addition, according to one embodiment of the present invention, the mounting means, the lower support located in the lower portion, and two or more inclined supports that are rotatably connected to enable inclination adjustment with respect to the lower support and are spaced apart from each other by a predetermined distance. and an upper support for interconnecting the two or more inclined supports, and an inclination angle adjusting means for connecting the lower support and the inclined support to adjust an inclination angle.

The inclination angle adjusting means can properly arrange a plurality of sub-modules according to the incident angle of the sun.

In addition, according to an embodiment of the present invention, the sub-module may be connected to the separation means by an elastic band, Velcro or tongs.

The combination in this way allows the sub-module to be easily detached from the separation means, making storage or transport more convenient.

In addition, according to an embodiment of the present invention, the angle at which the sub-modules are bent with the adjacent sub-modules may be 0° to 360°, and the distance between the sub-modules may be less than or equal to twice the width of the sub-modules.

Since the bending angle can be adjusted from 0° to 360° as described above, the folding angle can be variously adjusted in consideration of the installation location and the angle of incident light.

In addition, according to an embodiment of the present invention, the sub-module may consist of a single cell or a plurality of cells may be electrically connected in series or in parallel.

In addition, according to an embodiment of the present invention, the spacer member may be a spring, and the fixing member may be a clamp disposed at both ends of the spring.

When a spring is used as a spacer member and a clamp is used as a fixing member, the length can be easily adjusted by the elastic force of the spring, and the angle between the sub-modules can be easily adjusted through the clamping method.

In addition, according to one embodiment of the present invention, the inclined support may be adjustable in length.

In this way, when the length of the inclined support is adjustable, it is possible to not only fit the sub-modules of various sizes, but also easily fit the size of the installed space.

In addition, according to one embodiment of the present invention, the spacer means includes a plurality of support plates and a connecting means for rotatably connecting the plurality of support plates to each other, wherein the plurality of support plates are mutually foldable, and the Each of the plurality of solar cell sub-modules may be attached to each of the plurality of support plates.

In this way, the type of attaching the sub-module to the foldable support plate can make the attachment and detachment of the sub-module more convenient.

In addition, according to an embodiment of the present invention, the sub-module connecting means includes a mechanical rotation means or flexibility for connecting the plurality of solar cell sub-modules in a mechanically bendable state, so that the material can be changed without a separate mechanical means. It may be a member that is bent by the characteristic.

In addition, the present invention provides a solar cell module comprising a plurality of solar cell sub-modules, wherein the plurality of sub-modules are arranged to face each other between adjacent sub-modules with respect to incident light.

In this way, when they are arranged in such a way that they are opposed to each other, it is possible to re-absorb some of the light reflected from the adjacent sub-modules, thereby further increasing the power generation efficiency.

Also, in the present invention, the adjacent sub-modules may be arranged to have a V-shape, a W-shape, or a repeating shape of the incident light. In addition, the adjacent sub-modules may be arranged to have a U-shape or a repeating shape with respect to the incident light.

Also, in the present invention, the inner angle between the adjacent sub-modules may be arranged in a range of 120° to 40°. In this way, when the interior angle between sub-modules facing each other maintains the above range, the reduction rate of the power generation output can be limited to less than 30% while the installation area is reduced compared to when it is arranged in a flat plate, so that the power generation output per installation area can be further increased. have.

The solar cell module according to the present invention can be installed by maintaining a state in which a plurality of sub-modules are bent at various angles through a connection means, so that more modules can be installed in the same space, even when the amount of insolation and the amount of sunlight are the same Compared to the conventional inclined flat module, it is possible to improve the amount of power generation and reduce the installation area by increasing the solar light receiving area and the amount of sunlight.

In addition, when using, each sub-module is connected to have a curved shape (a flat shape is possible in some cases) and installed, and when storing and moving, the sub-module can be easily folded and stored, so storage and transport are easy.

In addition, in consideration of the angle at which the sun is incident, the angle at which the sub-module is bent can be variously adjusted, so that the power generation output can be further improved.

In addition, since some of the light reflected by the adjacent sub-modules can be re-absorbed by other sub-modules, the power generation output is improved.

1 is a perspective view of a solar cell module according to a first embodiment of the present invention.
2 is an enlarged perspective view of the sub-module spacing means of FIG. 1 .
3 is a front view and a side view of a sub-module mounting means constituting the solar cell module of FIG. 1 .
4 exemplarily shows a form in which the solar cell module according to the first embodiment of the present invention is installed.
5 shows a state in which the solar cell module according to the present invention is installed for incident light.
6 is a solar cell module according to a second embodiment of the present invention, showing a state in which a sub-module connected to be bendable is attached to each surface constituting a bent case or a support plate.

Hereinafter, the configuration and operation of the embodiment of the present invention will be described with reference to the accompanying drawings.

In describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

[First embodiment]

1 is a perspective view of a solar cell module according to a first embodiment of the present invention.

As shown in FIG. 1 , the solar cell module 100 according to the first embodiment of the present invention includes a plurality of solar cell sub-modules 110 and adjacent sub-modules to which the plurality of solar cell sub-modules are adjacent to each other. The sub-module connecting means 120 for flexibly connecting, and coupled to the plurality of sub-modules, when the plurality of sub-modules are bent, the bending angle and the distance between the plurality of sub-modules can be adjusted and fixed. It consists of a sub-module spacing means 130 to allow it, and a mounting means 140 for mounting the sub-module spacing means 130 .

The sub-module 110 may have a form in which a plurality of solar cell unit cells 111 are connected in series or in parallel to form one sub-module 110, as shown in FIG. A battery cell can also be used as one sub-module. On the other hand, the shape of the sub-module 110 is not particularly limited, but generally has a rectangular shape.

The sub-module connecting means 120 should be bendable while physically connecting the adjacent sub-modules 110, for example, such as a hinge that connects a plurality of solar cell sub-modules in a mechanically bendable state. Mechanical rotation means may be used. In addition, as another example, by arranging a flexible member such as plastic or fiber between the adjacent sub-modules 110 and attaching the ends to each other using means such as adhesives, bolts and nuts, and Velcro, the sub-module ( 110) A method of connecting the liver in a form that can be bent may be used. In addition, a wire for connecting electricity generated by the sub-module 110 may be disposed in the sub-module connecting means 120 .

2 is an enlarged perspective view of the sub-module spacing means of FIG. 1 .

As shown in FIGS. 1 and 2 , the spacer 130 includes a spring 132 that is an elastic member for adjusting the spacing between the plurality of support rods 131 and the plurality of support rods 131 , and the It is made to include a clamp 133 to be able to maintain the fixed spacing adjusted by the spring (132).

A fastening part 134 having fastening holes for fastening to the mounting means is formed near both ends of the plurality of support rods 131 . In addition, the spring 132 is supported by the fastening part 134 . Meanwhile, in the first embodiment of the present invention, a spring is used as the spacer member, but other types of elastic members other than the spring may be used.

In addition, two sub-modules 110 are disposed in a space formed between the plurality of support rods 131 , and an end of the sub-module 110 adjacent to the support rod 131 is flexibly connected to the support rod 131 . do. A method of flexibly connecting to the support rod 131 is not particularly limited, but when using an elastic band, Velcro or tongs, the sub-module 110 can be easily detached and attached from the separation means 130, which is preferable. yes it can be said

The clamp 133, for example, as shown in FIG. 2, may use a shape that can be fixed and released by an elastic force, and is particularly limited if it has a structure that can be fixed and released with respect to the elastic force of the spring 132 can be used without

3 is a front view and a side view of a sub-module mounting means constituting the solar cell module of FIG. 1 .

The mounting means 140, as shown, is connected to a lower support 141 located in the lower portion, and rotatably connected to the lower support 141 so as to be able to adjust the inclination with respect to the lower support 141, and are arranged to be spaced apart from each other by a predetermined distance. Inclination angle adjusting means for adjusting the inclination angle by connecting the above inclined support 142, the upper support 143 connecting the two or more inclined supports 142 to each other, and the lower support 141 and the inclined support 142 (144) is included.

The lower support 141 includes a first lower support 141a disposed in parallel in the drawing, and two second lower supports extending in a direction perpendicular to the ground in the drawing at both ends of the first lower support 141a. (141b) is included.

The inclined support 142 includes a first inclined support 142a formed of two hollow rods extending in a direction perpendicular to the first lower support 141a at both ends of the first lower support 141a and , and a second inclined support 142b inserted into the first inclined support 142a, and a height adjusting means 142c for adjusting the height of the second inclined support 142b. The height adjusting means 142c may include, for example, a hole formed in a predetermined portion of the first inclined support 142b and a screw inserted into the hole, but various known means may be used.

The upper support 143 is to prevent the flow of the second inclined support 142b, and to allow the spacing means 142 to be fastened, and is formed in a rod shape near the end of the second inclined support 142b. to interconnect In the embodiment of the present invention, the upper support 143 is connected to both ends of the second inclined support 142b, but the connection position may be variously adjusted.

The inclination angle adjusting means 144 includes a hole 144b formed at regular intervals in the longitudinal direction in the first inclined support 142a, and a pedestal rotatably connected to the second lower support 141b ( 144b). Through this, the inclination of the pedestal 144a may be adjusted according to the position of the hole into which the pedestal 144a is inserted among the holes formed in the second lower support 141b. In an embodiment of the present invention, the inclination may be adjusted in other known methods, such as adjusting the inclination angle by inserting the pedestal into the hole, hydraulically adjusting the length of the pedestal by hydraulically forming the pedestal.

Next, a method for installing a solar cell module according to the first embodiment of the present invention will be described.

First, by inserting the lower support 141 and the upper support 143 of the mounting means 140 into each of the fastening parts 134 formed at both ends of the support rod 131 of the spacing means 142, the support rod ( 131) is fastened to the mounting means (140). At this time, a coil-shaped spring 132 is inserted between the support rods 131 to maintain a constant distance between the support rods 131 .

And, when it is desired to adjust the bending angle between the sub-modules 110, a force is applied to the spring 132 to compress the spring 132 until a desired distance is reached, and then the clamp 134 is used to It is fixed to the lower support 141 and the upper support 143.

Then, both side ends of the two sub-modules connected to the support rod 131 so as to be mutually bendable are connected to the support rod 131 . At this time, since the sub-modules are preferably connected to the support rod 131 to be flexibly connected, they are interconnected using means such as an elastic band, Velcro, or tongs. This means makes it possible to easily detach and attach the sub-module from the support rod 131, thereby making storage and transport convenient.

Next, in consideration of the angle at which sunlight is incident, the angle of the pedestal 144a is adjusted.

As described above, procedures such as attachment of the sub-module to the support rod 131 or the angle adjustment of the pedestal may be performed before the support rod 131 is fastened to the mounting means 140 , and there is no particular limitation on the order.

In addition, the spacing between the sub-modules, that is, the spacing between the support rods, may be adjusted using only a plurality of clamps without using an elastic member in the spacing means.

In addition, when transporting or storing the solar cell module according to the first embodiment of the present invention, each of the sub-module, the separation means, and the mounting means may be disassembled in the reverse order.

4 exemplarily shows a form in which the solar cell module according to the first embodiment of the present invention is installed. As shown in FIG. 4 , the solar cell module according to the first embodiment of the present invention may be installed and used in a left-right direction or may be installed and used in an up-down direction.

5 shows a state in which the solar cell module according to the present invention is installed for incident light. As shown in FIG. 5 , when disposed in a V-shaped, W-shaped, or repeated form of sunlight with respect to the incident direction, some of the light reflected from one sub-module may be reabsorbed by an adjacent sub-module. , the power generation efficiency can be further improved.

In addition, in the case of arranging a plurality of sub-modules to face each other as described above, when the interior angle between the adjacent sub-modules is changed between 180° and 0° when incident light is vertically irradiated as shown in FIG. 5, In the range of the interior angle of 120° to 40°, it was possible to limit the reduction rate of power generation output to within 30% while reducing the horizontal installation area based on 180°. Therefore, it is more preferable to maintain the range of the interior angle to be 120° to 40°.

On the other hand, when a sub-module composed of a flexible thin plate or thin film solar cell is applied, the amount of power generation can be similarly increased by arranging it in a U-shape or a repeated shape thereof.

In addition, when a double-sided power generation solar cell is used in the solar cell sub-module having the above various curved shapes, power is generated not only from the front side of the solar cell but also from the rear side, so that the amount of power generation can be further improved.

[Second embodiment]

6 is a solar cell module according to a second embodiment of the present invention, showing a state in which a sub-module connected to be bendable is attached to each surface constituting a bent case or a support plate.

As shown in FIG. 6 , the solar cell module 200 according to the second embodiment of the present invention includes a plurality of solar cell sub-modules 210 and adjacent sub-modules to which the plurality of solar cell sub-modules are adjacent to each other. It comprises a sub-module connecting means 220 for flexibly connecting, and a sub-module spacing means 230 to which the plurality of sub-modules are attached, and which can adjust the bending interval of each sub-module.

The plurality of solar power sub-modules 210 and the sub-module connecting means 220 may be the same as those described in the first embodiment, and thus a separate description will be omitted.

The spacing means 230 includes a plurality of support plates 231 and a support plate connecting means 232 for rotatably connecting the plurality of support plates 231 to each other.

The support plate connecting means 232 has a hinge structure that flexibly connects both ends of the adjacent support plate 231 .

In addition, the sub-module may be attached to the support plate in various ways, for example, it may be attached in a manner such as Velcro.

100, 200: solar cell module
110, 210: sub-module
120, 220: sub-module connection means
130, 230: means of separation
140: mounting means

Claims (15)

a plurality of solar cell sub-modules;
sub-module connecting means for allowing the plurality of solar cell sub-modules to be flexibly connected to adjacent sub-modules;
and a sub-module spacing means coupled to the plurality of sub-modules and configured to be fixed by adjusting a bending angle and a distance between the plurality of sub-modules when the plurality of sub-modules are bent. According to claim 1,
A solar cell module further comprising a mounting means for mounting the sub-module spacing means. According to claim 1,
The separation means,
A plurality of support rods spaced apart from each other by a predetermined distance,
At least one spacer member for adjusting the spacing between the plurality of support rods,
at least one fixing member for allowing the spacing adjusted by the at least one spacing member to be maintained;
The sub-module is flexibly coupled to the plurality of support rods, a solar cell module. 3. The method of claim 2,
The mounting means,
a lower support located at the lower part, and
Two or more inclined supports that are rotatably connected to enable inclination adjustment with respect to the lower support and are spaced apart from each other by a predetermined distance;
an upper support interconnecting the two or more inclined supports;
A solar cell module comprising an inclination angle adjusting means for adjusting the inclination angle by connecting the lower support and the inclined support. 5. The method according to any one of claims 1 to 4,
The sub-module is connected to the separation means by an elastic band, Velcro or tongs, a solar cell module. 5. The method according to any one of claims 1 to 4,
The angle at which the sub-modules are bent with the adjacent sub-modules is 0° to 360°, and the distance between the sub-modules is not more than twice the width of the sub-modules, the solar cell module. 5. The method according to any one of claims 1 to 4,
The sub-module consists of a single cell or a plurality of cells are electrically connected in series or parallel, a solar cell module. 4. The method of claim 3,
The spacer member is a spring, and the fixing member is a clamp disposed at both ends of the spring, a solar cell module. 5. The method of claim 4,
The inclined support is adjustable in length, a solar cell module. According to claim 1,
The separation means,
a plurality of support plates;
A connecting means for rotatably connecting the plurality of support plates to each other is provided, so that the plurality of support plates are mutually foldable,
Each of the plurality of solar cell sub-modules is attached to each of the plurality of support plates, a solar cell module. 11. The method of claim 1 or 10,
The sub-module connection means is a member that is provided with a mechanical rotation means or flexibility that connects the plurality of solar cell sub-modules in a mechanically bendable state and is bent by the properties of a material without a separate mechanical means. . In the solar cell module consisting of a plurality of solar cell sub-modules,
The plurality of sub-modules are arranged to face each other between adjacent sub-modules with respect to incident light. 13. The method of claim 12,
The adjacent sub-modules are arranged to have a V-shaped, W-shaped, or a repeating form for incident light. 13. The method of claim 12,
The adjacent sub-modules are arranged to have a U-shape or a repeating shape with respect to incident light, a solar cell module. 13. The method of claim 12,
The solar cell module, which is arranged so that the interior angle between the adjacent sub-modules is in the range of 120° to 40°.

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