KR101228253B1 - Method for manufacturing solar cell module - Google Patents

Abstract

The present invention discloses a method of manufacturing a solar cell module that can be mounted on a building having a curved outer wall or window. The solar cell module manufacturing method according to the present invention comprises the steps of providing a first glass layer and a second glass layer, the outer component, each having a curved shape; Disposing an internal component between the first glass layer and the second glass layer; Positioning an upper membrane on the first glass layer and a lower membrane on the bottom of the second glass layer, respectively, in the process chamber; Supplying a vacuum pressure in a sealed space between the upper and lower membranes to forcibly remove air existing between the first glass layer, the internal component, and the second glass layer; And removing the upper and lower membrane membranes. Here, the internal components are a first ethylene vinyl acetate (EVA) / polyvinyl alcohol (PVA) layer, a solar cell layer and a second EVA / PVA layer.

Solar cell module

Description

Solar cell module manufacturing method {Method for manufacturing solar cell module}

The present invention relates to a solar cell module manufacturing method, and more particularly, to a solar cell module manufacturing method capable of manufacturing a curved solar cell module having a curved shape.

Photovoltaic power generation facilities generate electricity using sunlight incident on a module in which a plurality of photovoltaic cells are disposed. In recent years, large-scale buildings are equipped with their own power generation facilities. In particular, in order to increase energy efficiency, building integrated photovoltaic systems are installed on windows or exterior walls of buildings.

The solar power installation includes a solar cell module. The solar cell module is manufactured in the form of a sheet, and as shown in FIG. 1, the first glass layer 10, the first ethylene vinyl acetate (EVA) / polyvinyl alcohol; PVA) layer 20 (hereinafter referred to as " EVA / PVA layer "), solar cell layer 30, second EVA / PVA layer 40, and second glass layer 50.

The process of manufacturing the general photovoltaic module 1 will be briefly described as follows.

First, the first PVA layer 20, the solar cell layer 30, and the second EVA / PVA layer 40 are positioned between the first glass layer 10 and the second glass layer 50 having a flat plate shape. Assemble the car.

The primary assembled solar cell module is placed in the chamber on a support plate and a membrane is placed on the solar cell module 1 and the chamber bottom. Here, the membrane is a support woven from polymer fibers.

Then, in this state, power is supplied to the bottom surface of the chamber to generate heat, and a predetermined pressure is applied to the membrane, and at the same time, vacuum pressure is supplied to the space between the membrane and the bottom surface.

Under these conditions, the space between the membrane and the chamber bottom and the space between the membrane and the support plate become a vacuum, resulting in the first glass layer 10, the first PVA layer 20, Air existing between the solar cell layer 30, the second EVA / PVA layer 40, and the second glass layer 50 is forcibly discharged to the outside and compressed to each other.

Thereafter, by removing the membrane, a flat sheet composed of the first glass layer 10, the first PVA layer 20, the solar cell layer 30, the second EVA / PVA layer 40, and the second glass layer 5. The solar cell module 1 of the form is finally obtained.

On the other hand, the outer wall or window of the building has a variety of shapes such as curved surface in a uniform planar shape, and thus the solar cell module mounted on the outer wall or window of the building, which constitutes a solar power generation facility is also used as the outer wall or window of the building. It is preferable to have a curved shape to suit the shape.

The solar cell module 1 manufactured through the above process has a flat plate shape, and therefore, it is preferable to install a photovoltaic power generation facility including the flat solar cell module 1 on a curved outer wall or curved window of a building. Not.

Accordingly, an object of the present invention is to provide a method for manufacturing a solar cell module that can be mounted on a building having a curved outer wall or window.

According to an aspect of the present invention, there is provided a method of manufacturing a solar cell module, the method including: providing a first glass layer and a second glass layer, which are external components, having curved surfaces; Disposing an internal component between the first glass layer and the second glass layer; Positioning an upper membrane on the first glass layer and a lower membrane on the bottom of the second glass layer, respectively, in the process chamber; Supplying a vacuum pressure in a sealed space between the upper and lower membranes to forcibly remove air existing between the first glass layer, the internal component, and the second glass layer; And removing the upper and lower membrane membranes.

Here, the internal components are a first ethylene vinyl acetate (EVA) / polyvinyl alcohol (PVA) layer, a solar cell layer and a second EVA / PVA layer.

The present invention as described above can produce a photovoltaic cell module having a curved shape has an effect that can be accurately and stably mounted on the outer wall or window of the building having a curved shape.

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

2 is a view showing a solar cell module manufactured according to the present invention, the solar cell module 100 manufactured according to the present invention is an external component of the first glass layer 101 and the second glass layer ( 105 and a first ethylene vinyl acetate (EVA) / polyvinyl alcohol (PVA) layer disposed between the first glass layer 101 and the second glass layer 105 as internal components ( 102, hereinafter referred to as an " EVA / PVA layer ", and a solar cell layer 103, each having a stacked structure.

The manufacturing process of the manufactured solar cell module 100 shown in FIG. 2 will be described in detail.

First, the method of manufacturing a solar cell module according to the present invention includes providing a first glass layer 101 and a second glass layer 105 which are external components. Here, the first glass layer 101 and the second glass layer 105 has a curved shape corresponding to the shape of the outer wall or window of the building to which the solar cell module 100 is to be installed.

Thereafter, internal components between the first glass layer 101 and the second glass layer 105, that is, the first EVA / PVA layer 102, the solar cell layer 103, and the second EVA / PVA layer 104. ). In this case, the first glass layer 101, the first EVA / PVA layer 102, the solar cell layer 103, the second EVA / PVA layer 104, and the second glass layer 105 are not integrated. The predetermined interval is maintained between the components.

Assembly of the first glass layer 101, the first EVA / PVA layer 102, the solar cell layer 103, the second EVA / PVA layer 104, and the second glass layer 105 assembled as described above. Is positioned between the upper and lower membranes (310 and 320 in FIG. 3). That is, the lower portion of the assembly of the first glass layer 101, the first EVA / PVA layer 102, the solar cell layer 103, the second EVA / PVA layer 104 and the second glass layer 105 Membrane 320 is positioned on top, and upper membrane 310 is positioned on top of each other.

The edges of the upper and lower membranes 310 and 320 are sealed, so the first glass layer 101, the first EVA / PVA layer 102, the solar cell layer 103, and the second EVA / PVA layer ( The assembly of 104 and the second glass layer 105 is located in an enclosed space formed by the upper and lower membranes 310 and 320.

3 is a cross-sectional view of a chamber used to fabricate a solar cell module according to the present invention, wherein the first glass layer 101, the first EVA / PVA layer 102, disposed between the upper and lower membranes 310 and 320. The assembly of the solar cell layer 103, the second EVA / PVA layer 104, and the second glass layer 105 is shown on the bottom 202 of the process chamber 200.

The inner space of the process chamber 200 is in a sealed state, and the inside of the chamber 200 maintains a normal pressure condition during the solar cell module manufacturing process.

In addition, it is preferable to maintain the temperature conditions inside the process chamber 200 within a temperature range of 100 to 200 ° C. The first EVA / PVA layer 102 and the second EVA / PVA layer 104 have a part of the tissue dissolved in a temperature range of 100 to 200 ° C, and in this state, an external force (for example, vacuum pressure) is applied. The first EVA / PVA layer 102 and the second EVA / PVA layer 104 may be completely pressed onto the first glass layer 101 and the second glass layer 105 by using the I).

On the other hand, under such conditions, the vacuum pressure is supplied into the chamber 200. The vacuum pressure supply line 2010 connected to the chamber 200 corresponds in the enclosed space between the upper and lower membranes 310 and 320, so that the first glass layer 101, with all components uniformly heated, Air present between the first EVA / PVA layer 102, the solar cell layer 103, the second EVA / PVA layer 104, and the second glass layer 105 is forced out of the chamber 200. do.

As a result, the first glass layer 101, the first EVA / PVA layer 102, the solar cell layer 103, the second EVA / PVA layer 104, and the second glass layer 105 are formed by vacuum pressure. It is completely compressed between the upper and lower membranes 310 and 320. Thereafter, the curved sheet solar cell module 100 as shown in FIG. 2 is obtained by removing the upper and lower membranes 310 and 320.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having various ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. And additions should be considered to be within the scope of the following claims.

1 is a cross-sectional view of a typical solar cell module.

2 is a cross-sectional view of a solar cell module manufactured according to the present invention.

3 is a cross-sectional view of a chamber used to make a solar cell module according to the invention.

Claims (3)

In the solar cell module manufacturing method, Providing a first glass layer and a second glass layer, which are external components, each having a curved shape; Disposing an internal component between the first glass layer and the second glass layer; Positioning an upper membrane on the first glass layer, and a lower membrane below the second glass layer, respectively, in the process chamber with the edges of the upper and lower membranes sealed; Supplying a vacuum pressure in a sealed space between the upper and lower membranes to forcibly remove air existing between the first glass layer, the internal component, and the second glass layer; And Removing the upper and lower membrane membranes, The internal components are a first ethylene vinyl acetate (EVA) / polyvinyl alcohol (PVA) layer, a solar cell layer and a second EVA / PVA layer. delete The method of claim 1, wherein the interior of the chamber is maintained at atmospheric pressure and at 100 to 200 ° C. during the manufacturing process.

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