KR20130074213A

KR20130074213A - Solar cell strengthening module

Info

Publication number: KR20130074213A
Application number: KR1020110142156A
Authority: KR
Inventors: 정제홍; 정은석; 김명상
Original assignee: 주식회사수성기술
Priority date: 2011-12-26
Filing date: 2011-12-26
Publication date: 2013-07-04
Also published as: KR101337456B1

Abstract

The present invention relates to a solar cell reinforcement module, and in particular, a first substrate and a second filler layer disposed on one surface and the other surface of the solar cell facing each other and the front substrate laminated on the first and second filler layer and Including a rear substrate, characterized in that it further comprises a reinforcing plate layer between the solar cell and the rear substrate.
According to the present invention, there is provided a reinforcing plate layer composed of a fiber reinforcement or a wire reinforcement between the structure to enter the laminated structure in the solar cell module to reinforce the rigidity of the solar cell module, thereby reinforcing the rigidity of the solar module Removing the conventional strength reinforcing structure (reinforcement frame) has the effect of simplifying the structure of the solar cell module.

Description

SOLAR CELL STRENGTHENING MODULE

The present invention relates to a solar cell reinforcement module, and more particularly, to a structure that can enhance the rigidity of a solar cell module to be enlarged.

Since solar cell materials are often fabricated using monocrystalline silicon or polycrystalline silicon substrates, solar cell materials are not susceptible to physical impact, and solar cells installed outdoors need to be protected from rain . In addition, since the electric output generated from one solar cell material is small, it is necessary to connect a plurality of solar cell materials in series and in parallel, and to be able to take out a practical electric output. Therefore, a plurality of solar cell materials are connected, sealed with a transparent substrate and a filler, and a solar cell module is usually manufactured.

1 is a view illustrating a structure of a conventional solar cell module, and a frame (F) structure coupled to a structure in which an edge portion of the solar cell 30 is inserted is provided, and is filled in a structure stacked on the upper portion of the solar cell, respectively. 20 and 40 and the front and rear glass 10 and 50 are sequentially stacked, and each component is coupled to the frame F into the frame.

Figure 2 shows a side cross-sectional view of the result of the combination of the structure of Figure 1, combined with a structure in which the frame portion of the constituent layer is inserted into the frame (F), the edges of the windshield and rear glass (10, 50) In the structure to be inserted, the double-sided adhesive tape T is used to fix the frame by giving adhesive property. However, this structure has a problem that does not effectively prevent the heat generated from the solar cell penetrates into the module.

There are many types of solar cell modules such as general crystalline silicon modules, thin-film flexible modules, roof tile modules, triangle modules, and building material transfer modules (BIPV) that can be used as glass windows, depending on the shape, cell type, and application. The tiny solar cell attached to our calculator or watch is a module.

However, as interest in solar energy generation using solar cells has increased recently, the size of solar cell modules has gradually increased in order to utilize more energy, and thus, it is impossible to support solar cell modules above a certain standard by using only frames. That is causing problems.

3 is a plan view showing the rear surface of the rear glass 50 of the structure described above in FIG. 1 to solve this problem, as shown in the rear of the solar cell module.

One or more strength reinforcing structures P for connecting the edges described above with reference to FIG. 1 are formed at portions other than the portions where the junction box 60 as the control box is exposed. However, the above-described strength reinforcing structure (P) has a high heat transfer rate of aluminum material, and transfers the generated heat to a solar cell module vulnerable to heat, thereby causing a problem of lowering the efficiency of the solar cell module.

The present invention has been made to solve the above problems, an object of the present invention is to provide a stiffness of the solar cell module having a reinforcing plate layer consisting of a fiber reinforcement or a wire reinforcement between the structure to enter the laminated structure in the solar cell module The present invention provides a solar cell module having a simplified structure by removing the conventional strength reinforcing structure (reinforcing frame), which has been reinforced for the rigidity of the solar module.

In particular, by fixing the adhesion of the solar cell and the outer frame accommodating the front and rear substrates using an insulating adhesive having a low heat transfer rate, the solar cell prevents heat generated from the frame from being transferred into the solar cell module. It is another object of the present invention to provide a module.

As a means for solving the above problems, the present invention is a solar cell; First and second filler layers respectively disposed on one surface of the solar cell and the other surface of the solar cell; And a front substrate and a rear substrate stacked on the first and second filler layers, wherein the solar cell reinforcement module may further include a reinforcing plate layer between the solar cell and the back substrate. Make sure

In particular, in this case, the reinforcing plate layer included in the solar cell reinforcement module may be disposed between the rear substrate and the second filler layer or between the second filler layer and the solar cell.

In this case, the reinforcing plate layer is preferably formed of any one of a fiber reinforcement or a wire reinforcement.

In addition, the solar cell reinforcement module according to the present invention further includes a frame structure having a structure penetrating therein, wherein the solar cell, the first and second filler layers, front and rear substrates, the edge portion of the reinforcing plate is the frame It can be combined into a structure that is inserted into the structure.

In addition, the frame structure, the one side is opened, and the other side except the one side and the upper and lower portions are provided with a bent structure formed, the front and rear substrate edges in contact with the inner surface of the frame structure, the heat, The edges of the front and rear substrates are coupled to the frame through an adhesive having an insulating property that does not transmit.

The solar cell module according to the present invention may further include a junction box coupled to the rear substrate.

According to the present invention, there is provided a reinforcing plate layer composed of a fiber reinforcement or a wire reinforcement between the structure to enter the laminated structure in the solar cell module to reinforce the rigidity of the solar cell module, thereby reinforcing the rigidity of the solar module Removing the conventional strength reinforcing structure (reinforcement frame) has the effect of simplifying the structure of the solar cell module.

In particular, it is possible to prevent the heat generated from the frame from being transferred into the solar cell module by fixing the adhesion between the solar cell and the outer frame accommodating the front and rear substrates using an insulating adhesive having low heat transfer rate. have.

1 is an exploded perspective view of a conventional solar cell module.
2 shows a cross-sectional view of the structure of FIG. 1.
3 is a plan view of a rear substrate of the solar cell module of FIG. 1.
4 is an exploded perspective view of a solar cell module according to the present invention.
5 is a cross-sectional conceptual view of a solar cell module according to the present invention.
6 is a rear view of the solar cell module according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description with reference to the accompanying drawings, the same reference numerals denote the same elements regardless of the reference numerals, and redundant description thereof will be omitted. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

4 is an exploded perspective view according to an embodiment of a solar cell reinforcement module according to the present invention.

Referring to FIG. 4, the solar cell reinforcement module according to the present invention includes a solar cell 130 and first and second filler layers disposed on one surface of the solar cell 130 and the other surface opposite to the one surface, respectively. 120 and 140, and front and rear substrates 110 and 150 stacked on the first and second filler layers 120 and 140, in particular, the solar cell 130 and the rear substrate ( Between 150 is characterized in that it further comprises a reinforcing plate layer (160). In addition, the reinforcing plate layer 160 may be disposed between the back substrate 150 and the second filler 140 layer, or may be disposed between the second filler layer 140 and the solar cell 130. Furthermore, a junction box 170 which is a control box coupled to the rear surface of the rear substrate 150 may be further provided.

The reinforcing plate layer 160 is a plate-like substrate structure, as shown, has an edge that can be inserted into the frame 200, in particular during the lamination process of the above-described solar cell module fiber reinforcement or wire The reinforcing material is combined to enhance the strength of the solar cell. That is, during the manufacturing of the solar cell module, the front substrate, the filler layer, the solar cell element, the rear substrate, etc. are sequentially stacked and manufactured by using a lamination method such as vacuum suction and heat pressing. It can be prepared by laminating together by inserting the layers.

In the present invention, the reinforcing plate layer 160 is illustrated as a plate-like plate structure, but is not limited to this, by forming a variety of patterns on the structure having a characteristic that ensures the light transmittance to increase the light transmittance and at the same time have a strengthening function. You can do that. For example, it may be considered to implement a pattern such as a mesh, a mesh, a honeycomb structure with a structure having a plurality of through holes in the plate itself.

In addition, the reinforcing plate layer 160 is made of refractory polypropylene fiber (PP fiber), high toughness PVA, NYCON FIBER, PVA (Polyvinyl Acohol), ARBOCEL Fiber, power mesh fiber, glass fiber reinforcement, steel fiber Fiber reinforcing materials such as reinforcing material or wire reinforcing material configured by arranging the wires in parallel or intersecting can be used.

The front substrate constituting the solar cell module according to the present invention (110) can use a low iron tempered glass, mainly to protect the solar cell module (module), excellent mechanical strength and also weather resistance, hydrolysis resistance, etc. It is necessary to have durability, and it can use what has a spectral transmittance of 90% or more. Due to its nature, many solar cells are used outdoors, and therefore, high durability is required for members constituting the solar cell module. Since the low iron tempered glass which is a substrate used for a solar cell module mainly protects the back surface of a solar cell module, it is preferable to use what is excellent in mechanical strength, and has durability, such as weather resistance and hydrolysis resistance.

The back substrate 150 may be formed of a sheet material or a substrate material composed of polyvinyl fluoride (PVF), polyester, or acrylic, or a sandwich material substrate coated with aluminum foil or polyester on the PVF to increase moisture resistance of the PVF. It is available.

In addition, the filler layers 120 and 140 generally use ethylene vinyl acetate (EVA) or polybutyral (PVB: Poluvinyl Butyral), wherein the EVA or the PVB is a surface glass, a solar cell, By bonding and sealing the back sheet or the back glass, it blocks the external moisture, dust and air, or protects the fragile cells.

And the frame 200, as shown in the structure shown, one side is an open structure and the other side and the upper and lower surfaces may be formed in a 'c'-shaped structure, the bent inner portion (hereinafter referred to as "insertion") The solar cell, the first and second filler layers, front and rear substrates, and the edge portion of the reinforcing plate are combined into the inserting portion. In this case, butyl rubber or the like is fitted inside the frame 150 as a sealing material for sealing.

In addition, the solar cell 130 may be formed of a semiconductor substrate having a pn junction, and may be implemented in a structure in which a plurality of solar cells 130 are connected in series or in parallel to generate a voltage and a current having a proper capacitance.

Referring to FIG. 5, this shows a coupling structure of the solar cell module according to the present invention described above with reference to FIG. 4.

As shown in FIG. 5, the edges of the solar cell 130, the first and second filler layers 120 and 140, and the front and rear substrates 110 and 150 are coupled to the insertion part in the frame 200. Done. In this case, in particular, in the present invention, the front substrate 110 and the rear substrate 150 are in contact with the inner surface of the frame by using an adhesive 300 such as a silicone sealant having an insulating property and semipermanent adhesive force. By fixed attachment, it is possible to prevent the heat generated in the frame 200 is conducted to the inside of the solar cell module.

In addition, although not shown in FIG. 5, a protective sheet may be further coupled between the solar cell 130 and the first and second filler layers 120 and 140, that is, the surface of the solar cell 130. . When the filler layers 120 and 140 are EVA, there is a risk of damaging the metal line on the surface of the solar cell by generating acidic gas or acetic acid when exposed to ultraviolet light for a long time after installation of the solar cell module. Vulnerable in terms of durability In order to prevent this, the above-described protective sheet may be formed using a material of silicon, acrylic, poly ethylene (PE), and poly ethylene terephthalate (PET). In this case, since PE and PET may be deteriorated by ultraviolet rays, it is preferable to use a sunscreen coated on the surface. Furthermore, if the protective sheet is too thick, the filler layers 120 and 140 may not be able to perform its function properly, so that the protective sheet: the filling sheet or the protective sheet: the filling sheet on the front and rear surfaces of the solar cell 130, respectively. The thickness ratio of is preferably 1: 1 to 1: 5.

Of course, in the present invention, as described above, by inserting a reinforcing plate layer for reinforcing the entire solar cell module in the module, even if the conventional reinforcing reinforcement structure described above in Figure 3 can be implemented to have the advantage of having sufficient rigidity And, by using an insulating adhesive to block the heat transfer it is possible to ensure the reliability of the solar cell module.

In the foregoing detailed description of the present invention, specific examples have been described. However, various modifications are possible within the scope of the present invention. The technical idea of the present invention should not be limited to the embodiments of the present invention but should be determined by the equivalents of the claims and the claims.

110: front substrate
120: first filler layer
130: solar cell
140: second layer of an earthquake layer
150: backplane
160: reinforcement plate
170: junction box
200: frame
300: Adhesive

Claims

Solar cells;
First and second filler layers respectively disposed on one surface of the solar cell and the other surface of the solar cell;
Including; a front substrate and a rear substrate laminated on the first and second filler layer,
And a reinforcement plate layer between the solar cell and the rear substrate.

The method according to claim 1,
The reinforcing plate layer,
A solar cell reinforcement module disposed between the rear substrate and the second filler layer.

The method according to claim 2,
The reinforcing plate layer,
A solar cell reinforcement module disposed between the second filler layer and the solar cell.

4. The method according to any one of claims 1 to 3,
The reinforcing plate layer,
Solar cell reinforcement module formed of either fiber reinforcement or wire reinforcement.

The method of claim 4,
The solar cell reinforcement module,
It further comprises a; frame structure of the structure penetrating the inside,
Solar cell reinforcement module coupled to the structure of the solar cell, the first and second filler layer, the front and back substrate, the edge portion of the reinforcing plate is inserted into the frame structure.

The method according to claim 5,
The frame structure,
One side is opened, the solar cell reinforcement module having an insertion portion formed in a structure in which the other side and the upper and lower portions except the one side is bent.

The method of claim 6,
Border portions of the front and rear substrates in contact with the inner surface of the frame structure,
A solar cell reinforcement module to which the edges of the front and rear substrates are coupled to a frame through an adhesive having an insulating property that does not transfer heat.

The method of claim 7,
In the solar cell module,
A solar cell reinforcement module further comprising a junction box coupled to the rear substrate.