KR20130101818A

KR20130101818A - Solar cell module

Info

Publication number: KR20130101818A
Application number: KR1020120022849A
Authority: KR
Inventors: 김경암
Original assignee: 엘지이노텍 주식회사
Priority date: 2012-03-06
Filing date: 2012-03-06
Publication date: 2013-09-16

Abstract

The solar cell module according to the embodiment includes a solar cell panel; A protective substrate on the solar cell panel; And a first buffer unit positioned between the solar cell panel and the protective substrate, and including a hole penetrating through the solar cell panel, the first buffer unit, and the protective substrate.
The solar cell module according to the embodiment includes a first solar cell module including a first hole; A second solar cell module connected to the first solar cell module through the first hole and including a second hole; And a third solar cell module connected to the second solar cell module through the second hole and including a third hole.

Description

Solar cell module {SOLAR CELL MODULE}

An embodiment relates to a solar cell module.

Photovoltaic modules that convert light energy into electrical energy using photovoltaic conversion effects are widely used as means for obtaining pollution-free energy contributing to conservation of the global environment.

As the photovoltaic conversion efficiency of solar cells is improved, many photovoltaic power generation systems equipped with photovoltaic power generation modules have been installed for residential use.

In order to output electric power generated from a solar power generation module having a solar cell that generates power from daylight to the outside, conductors serving as both electrodes and negative electrodes are disposed in the solar power generation module, And the ends of the conductors are taken out of the photovoltaic module.

A frame is provided to accommodate such a solar cell module, which is exposed to the upper surface of a protective substrate protecting the solar cell module, thereby deteriorating its appearance. In addition, foreign matter may accumulate on the frame exposed to the upper surface of the protective substrate, which may deteriorate the reliability of the solar cell module. In addition, there is a problem that the installation area is reduced by such a frame.

Embodiments provide a solar cell module with improved reliability.

A solar cell module according to an embodiment includes a solar cell panel; A protective substrate on the solar cell panel; And a first buffer unit positioned between the solar cell panel and the protective substrate, and including a hole penetrating through the solar cell panel, the first buffer unit, and the protective substrate.

The solar cell module according to the embodiment includes a first solar cell module including a first hole; A second solar cell module connected to the first solar cell module through the first hole and including a second hole; And a third solar cell module connected to the second solar cell module through the second hole and including a third hole.

The solar cell module according to the embodiment includes a hole and a fixing part inserted into the hole. The solar cell modules can be connected to each other through the hole and the fixing part. In particular, the present embodiment can be connected to the solar cell module without a separate frame, it is possible to simplify the solar cell module. In addition, by omitting the frame, the appearance of the solar cell module can be improved. In addition, the frame is omitted, it is possible to prevent the problem that the foreign matters accumulated in the frame to improve the reliability of the solar cell module.

In addition, even if the solar cell modules overlap, the light absorbing layer included in the solar cell is not affected. Therefore, the efficiency of a solar cell module can be improved more.

1 is an exploded perspective view illustrating a solar cell module according to an embodiment.
2 is a cross-sectional view of a solar cell module according to an embodiment.

In the description of embodiments, each layer, region, pattern, or structure may be “on” or “under” the substrate, each layer, region, pad, or pattern. Substrate formed in ”includes all formed directly or through another layer. The criteria for top / bottom or bottom / bottom of each layer are described with reference to the drawings.

The thickness or the size of each layer (film), region, pattern or structure in the drawings may be modified for clarity and convenience of explanation, and thus does not entirely reflect the actual size.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the solar cell module according to the embodiment will be described in detail with reference to FIG. 1. 1 is an exploded perspective view showing a solar cell module according to an embodiment.

Referring to FIG. 1, the solar cell module 10 according to the embodiment includes a solar cell panel 200, a protective substrate 300, a first buffer part 410, holes 111 and 112, and a fixing part 600. It includes.

The solar cell panel 200 is disposed under the solar cell module 10. The solar cell panel 200 has a plate shape and includes a plurality of solar cells 210.

The solar cells 210 may be, for example, CIGS-based solar cells, silicon-based solar cells, fuel-sensitized solar cells, II-VI compound semiconductor solar cells, or III-V compound semiconductor solar cells.

In addition, the solar cells 210 may be disposed on a transparent substrate such as a glass substrate.

The solar cells 210 may be arranged in a stripe shape. In addition, the solar cells 210 may be arranged in various forms such as a matrix form.

The bus bar 500 is disposed on the solar cell panel 200. The bus bar 500 contacts the upper surfaces of the two solar cells 210 and is electrically connected to the solar cells 210.

For example, the bus bar 500 includes a first bus bar and a second bus bar.

The first bus bar is in contact with the upper surface of the solar cell at one end of the solar cells 210 and the second bus bar is in contact with the upper surface of the solar cell at the other end of the solar cells 210 .

The bus bar 500 is a conductor, and examples of the material used for the bus bar 500 include copper and the like.

The protective substrate 300 is disposed on the solar cell panel 200. In more detail, the protective substrate 300 is disposed to face the solar cell panel 200.

The protective substrate 300 is transparent and has a high strength. Examples of the material used as the protective substrate 300 may include tempered glass.

The first buffer part 410 is interposed between the protective substrate 300 and the solar cell panel 200. The first buffer part 410 protects the solar cell panel 200 from an external physical shock. In addition, the first buffer part 410 prevents a collision between the protective substrate 300 and the solar cell panel 200.

The first buffer unit 410 may perform an anti-reflection function so that more light is incident on the solar cell panel 200.

The first buffer part 410 may include an insulator. In more detail, the first buffer part 410 may be formed of an insulator. Examples of the material used as the first buffer part 410 include ethylene vinyl acetate resin (EVA resin). That is, the first buffer part 410 is an insulating layer.

Subsequently, the holes 111 and 112 penetrate the solar cell panel 200, the first buffer part 410, and the protective substrate 300. The holes 111 and 112 may be positioned at edges of the solar cell panel 200, the first buffer part 410, and the protective substrate 300. The holes 111 and 112 may be formed by selectively processing the positions at which the solar cell modules 10 are to be connected. The holes 111 and 112 are provided in plural numbers.

Subsequently, buffer parts 420 and 430 and reference numeral 440 of FIG. 2, which are the same below, are further positioned to surround the holes 111 and 112.

In detail, the buffer parts 420, 430, and 440 include a second buffer part 420 surrounding the inside of the holes 111 and 112. The second buffer part 420 may coat inner surfaces of the holes 111 and 112.

In addition, the buffer parts 420, 430, and 440 include a third buffer part 430 surrounding upper surfaces of the holes 111 and 112.

In addition, the buffer parts 420, 430, and 440 include a fourth buffer part 440 surrounding lower surfaces of the holes 111 and 112.

The second buffer part 420, the third buffer part 430, and the fourth buffer part 440 may be integrally formed with the first buffer part 410. That is, when the first buffer part 410 is bonded in a lamination process, the second buffer part 420 and the third buffer part 430 naturally into the inside, the upper surface, and the lower surface of the holes 111 and 112. ) And the fourth buffer part 440 may be formed.

However, the exemplary embodiment is not limited thereto, and the second buffer part 420, the third buffer part 430, and the fourth buffer part 440 may be formed separately. For example, the third buffer 430 and the fourth buffer 440 may be formed using separate washers.

The second buffer part 420, the third buffer part 430, and the fourth buffer part 440 may include rubber or butyl rubber.

The fixing part 600 and the solar cell module 10 inserted into the holes 111 and 112 through the second buffer part 420, the third buffer part 430, and the fourth buffer part 440. It can buffer between.

The fixing unit 600 is inserted into the holes 111 and 112, and the solar cell modules 10 may be connected to each other. The fixing part 600 may be, for example, a screw.

The fixing part 600 may support an inclined surface such as a roof on which the solar cell module 10 is installed.

The solar cell modules 10 may be connected to each other through the holes 111 and 112 and the fixing part 600. In particular, the present embodiment can be connected to the solar cell module without a separate frame, it is possible to simplify the solar cell module. In addition, by omitting the frame, the appearance of the solar cell module can be improved. In addition, the frame is omitted, it is possible to prevent the problem that the foreign matters accumulated in the frame to improve the reliability of the solar cell module.

Hereinafter, a solar cell module according to another embodiment will be described with reference to FIG. 2. 2 is a cross-sectional view of a solar cell module according to an embodiment.

Referring to FIG. 2, the solar cell module according to the embodiment includes a first solar cell module 10, a second solar cell module 20, and a third solar cell module 30.

The first solar cell module 10 includes a first hole 110. The first hole 110 is a first left hole 111 located on the left side of the first solar cell module 10 and a first right hole 112 located on the right side of the first solar cell module 10. ).

The second solar cell module 20 includes a second hole 120. The second hole 120 is a second left hole 121 located on the left side of the second solar cell module 20 and a second right hole 122 located on the right side of the second solar cell module 20. ).

The third solar cell module 30 includes a third hole 130. The third hole 130 is a third left hole 131 located on the left side of the third solar cell module 30 and a third right hole 132 located on the right side of the third solar cell module 30. ).

The first right hole 112 and the second left hole 121 correspond to each other. More specifically, the second left hole 121 is positioned on the first right hole 112 to correspond to the first right hole 112. Here, the first fixing part 601 may be included to penetrate the first right hole 112 and the second left hole 121 at the same time.

Similarly, the second right hole 122 and the third left hole 131 correspond to each other. The third left hole 131 is positioned on the second right hole 122 to correspond to the second right hole 122. Here, the second fixing part 602 may pass through the second right hole 122 and the third left hole 131 at the same time.

The lengths of the first fixing part 601 and the second fixing part 602 are different from each other. Specifically, since the third solar cell module 30 is positioned higher than the second solar cell module 20, the length of the second fixing part 602 is greater than the length of the first fixing part 601. Longer. That is, the lengths of the first fixing part 601 and the second fixing part 602 may be different from each other, and may be supported on an inclined surface such as a roof on which the solar cell module is installed.

Although the drawings show up to the third solar cell module 30, the embodiment is not limited thereto, and a plurality of solar cell modules may be provided.

The first solar cell module 10, the second solar cell module 20, and the third solar cell through the first hole 110, the second hole 120, and the third hole 130. Module 30 may be connected.

Meanwhile, the connection member 700 connects a bus bar (reference numeral 500 of FIG. 1, hereinafter identical) and a cable (not shown, hereinafter same). That is, the bus bar 500 is connected to one end of the connection member 700, and the cable is connected to the other end of the connection member 700. The connection member 700 may include a conductor and an insulator, and may include a bypass diode.

The features, structures, effects and the like described in the foregoing embodiments are included in at least one embodiment of the present invention and are not necessarily limited to one embodiment. Further, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified in other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention. It can be seen that various modifications and applications are possible. For example, each component specifically shown in the embodiments may be modified. It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

Claims

Solar panel;
A protective substrate on the solar cell panel; And
A first buffer part disposed between the solar cell panel and the protective substrate,
And a hole penetrating the solar cell panel, the first buffer part, and the protective substrate.

The method of claim 1,
Solar cell module is provided with a plurality of holes.

The method of claim 1,
The hole is a solar cell module located at the edge of the solar panel, the first buffer portion and the protective substrate, respectively.

The method of claim 1,
The solar cell module further comprises a second buffer unit surrounding the inside of the hole.

5. The method of claim 4,
And a third buffer portion surrounding the upper surface of the hole and a fourth buffer portion surrounding the lower surface of the hole.

The method of claim 1,
The solar cell module further comprises a fixing part penetrating the hole.

A first solar cell module including a first hole;
A second solar cell module connected to the first solar cell module through the first hole and including a second hole; And
A solar cell module connected to the second solar cell module through the second hole and including a third solar cell module including a third hole.

The method of claim 7, wherein
The first hole includes a first left hole located on the left side of the first solar cell module and a first right hole located on the right side of the first solar cell module.
The second hole includes a second left hole positioned on the left side of the second solar cell module and a second right hole positioned on the right side of the second solar cell module.
The third hole includes a third left hole positioned on the left side of the third solar cell module and a third right hole positioned on the right side of the third solar cell module.

9. The method of claim 8,
The first right hole and the second left hole correspond to each other;
And the second right hole and the third left hole correspond to each other.

9. The method of claim 8,
The second left hole is located on the first right hole,
The solar cell module, wherein the third left hole is located on the second right hole.

9. The method of claim 8,
A first fixing part penetrating the first right hole and the second left hole simultaneously;
And a second fixing part penetrating the second right hole and the third left hole at the same time.

12. The method of claim 11,
The solar cell module having a length different from the first fixing part and the second fixing part.

The method of claim 7, wherein
The solar cell module further comprises a buffer unit surrounding the first hole, the second hole and the third hole.