CN108198882A - Double-glass crystalline silicon solar cell module with snow melting function - Google Patents

Abstract

The invention discloses a double-glass crystalline silicon solar cell module with snow melting function, which comprises a glass front plate, a solar cell and a glass back plate arranged in sequence from top to bottom, and also includes a first glass panel between the glass front plate and the solar cell. An encapsulating adhesive film and a second encapsulating adhesive film located between the solar cell and the glass backplane, at least one side of the first encapsulating adhesive film and/or the second encapsulating adhesive film is embedded with a plurality of metal heating wires, the A conductive lead-out part for converging and leading out of the metal heating wire and connecting with an external circuit structure is arranged on the glass back plate. In the present invention, the surface temperature of the solar cell module rises, which can continuously melt snow and continuous snowfall. Therefore, the solar cell module of the present invention has a good snow melting ability, and continuously improves the power generation of the solar cell module in areas with heavy snowfall.

Description

A double-glass crystalline silicon solar cell module with snow-melting function

technical field

The invention belongs to the technical field of photovoltaic cells, and in particular relates to a double-glass crystalline silicon solar cell module with the function of melting snow.

Background technique

In Hokkaido, Japan, Northeast China, Inner Mongolia and other regions, there is a lot of snow in winter and the snowing time is long. The surface of photovoltaic modules is covered by ice and snow for a long time, and the modules may not be able to generate electricity for several months, which will greatly reduce the power generation of photovoltaic modules and photovoltaic systems. At present, photovoltaic modules do not have the function of melting snow. Once it snows, the surface of photovoltaic modules gradually accumulates snow, and the surface of photovoltaic modules is gradually covered by snow. With the increase of the shading area, the power generation of photovoltaic modules is almost zero.

From the perspective of the temperature of the components themselves, due to the low temperature in the above-mentioned extremely cold regions, photovoltaic modules will have a relatively high output of power generation. There are a large number of ground power stations and rooftop photovoltaic power stations in these regions. If the problem of surface snow melting can be solved, It will greatly increase the power generation capacity of the photovoltaic system.

Contents of the invention

In order to solve the above problems, the present invention provides a double-glass crystalline silicon solar cell assembly with snow melting function, which can melt the snow covering the solar cell assembly and increase the power generation of the photovoltaic system.

The technical solution of the present invention is: a double-glass crystalline silicon solar cell module with snow-melting function, including a glass front plate, a solar cell, and a glass back plate arranged sequentially from top to bottom, and also includes a The first encapsulant film between the solar cells and the second encapsulant film between the solar cell and the glass backplane, at least one side of the first encapsulant film and/or the second encapsulant film is embedded with a plurality of metal heating wires , the glass back plate is provided with a conductive lead-out part for converging and leading out of the metal heating wire and connecting with an external circuit structure.

In the present invention, at least one side of the first packaging adhesive film and/or the second packaging adhesive film is embedded with a metal heating wire, and a conductive lead-out part is provided from the glass back plate to connect the metal heating wire to the external circuit structure, and the external circuit The structure can be a special junction box, which provides voltage or current to the metal heating wire through the junction box. After the metal heating wire is energized, the heat generated is transferred to the packaging film. The snow melts after the front panel and the glass back panel heat up.

Wherein the conductive lead-out part is located at a suitable position of the glass back plate, for example, a notch or a slot hole can be opened at a suitable position of the glass back plate to form a conductive lead-out part, and the metal heating wire can flow through the notch or the slot hole, so as to communicate with the outside Circuit structure connection.

There are many ways to arrange the metal heating wires in the present invention, for example, multiple heating wires can be arranged in parallel.

In the present invention, the metal heating wire can be arranged on one side or both sides of the first packaging adhesive film and/or the second packaging adhesive film, and preferably, one side of the first packaging adhesive film and/or the second packaging adhesive film Embedded with metal heating wire.

As a further preference, the metal heating wire is embedded on the side of the first encapsulation film facing the glass front plate or on the side of the second encapsulation film facing the glass back plate.

There are various structures of the metal heating wire in the present invention, preferably, the metal heating wire is tungsten wire or silver wire.

In the present invention, the materials of the first encapsulating adhesive film and the second encapsulating adhesive film can be selected from a variety of materials. Preferably, the first encapsulating adhesive film and/or the second encapsulating adhesive film are polymer material adhesive films.

Preferably, the polymer film is a mixture of one or more of PVB, EVA and POE.

Preferably, the first encapsulating adhesive film and/or the second encapsulating adhesive film is one or a mixture of white adhesive film, transparent adhesive film and colored adhesive film.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

In the present invention, the surface temperature of the solar cell module rises, which can continuously melt snow and continuous snowfall. Therefore, the solar cell module of the present invention has a good snow melting ability, and continuously improves the power generation of the solar cell module in areas with heavy snowfall.

Description of drawings

FIG. 1 is a schematic structural view of the first encapsulation film in the present invention.

Fig. 2 is a structural schematic diagram of the present invention.

Detailed ways

As shown in Figures 1 and 2, the present invention includes a glass front plate 1, a solar cell 2, and a glass back plate 3 arranged in sequence from top to bottom, and also includes a first package between the glass front plate 1 and the solar cell 2 The adhesive film 4 and the second packaging adhesive film 5 located between the solar cell 2 and the glass back plate 3, at least one side of the first packaging adhesive film 4 and/or the second packaging adhesive film 5 are embedded with a plurality of metal heating wires 6 The glass back plate 3 is provided with a conductive lead-out part (not shown in the figure) for the metal heating wire 6 to converge and lead out and connect with the external circuit structure. There are many ways to arrange the metal heating wires in the present invention, for example, multiple heating wires can be arranged in parallel.

In the present invention, the materials of the first encapsulating adhesive film 4 and the second encapsulating adhesive film 5 can be selected in various ways, and the first encapsulating adhesive film 4 and/or the second encapsulating adhesive film 5 are polymer material adhesive films. The polymer film can be one or more than one of PVB, EVA and POE. The first encapsulating adhesive film 4 and/or the second encapsulating adhesive film 5 may also be one or a mixture of white adhesive films, transparent adhesive films and colored adhesive films.

In the present invention, at least one side of the first packaging adhesive film 4 and/or the second packaging adhesive film 5 is embedded with a metal heating wire 6, and a conductive lead-out part is provided from the glass back plate 3, and the metal heating wire 6 is connected to the external circuit. Structural connection, the external circuit structure can be a special junction box, which provides voltage or current to the metal heating wire 6 through the junction box. After the metal heating wire 6 is energized, the heat generated is transferred to the packaging film, and the packaging film continues to generate heat, which is conducted to the front of the glass. The plate 1 and the glass back plate 3, and the glass front plate 1 and the glass back plate 3 are heated to melt snow.

Wherein the conductive lead-out portion is located at a suitable position of the glass back plate 3, for example, a notch or a slot hole can be provided at a suitable position of the glass back plate 3 to form a conductive lead-out portion, and the metal heating wire 6 is confluent through the notch or the slot hole, Thereby connecting with the external circuit structure.

In the present invention, the metal heating wire 6 can be arranged on one side or both sides of the first packaging adhesive film 4, generally, one side of the first packaging adhesive film 4 and/or the second packaging adhesive film 5 is embedded with a metal heating wire 6, and preferably the metal heating wire 6 is embedded on the side of the first encapsulating adhesive film 4 facing the glass front plate 1 or on the side of the second encapsulating adhesive film 5 facing the glass back plate 3 . There are various structures of the metal heating wire 6 in the present invention, for example, the metal heating wire 6 is a tungsten wire or a silver wire.

Claims (7)

1. A double-glass crystalline silicon solar cell module with snow melting function, comprising a glass front plate, a solar cell and a glass back plate arranged sequentially from top to bottom, characterized in that it also includes a glass front plate and a solar cell between the The first encapsulant film and the second encapsulant film located between the solar cell and the glass backplane, at least one side of the first encapsulant film and/or the second encapsulant film are embedded with a plurality of metal heating wires, The glass back plate is provided with a conductive lead-out part for converging and leading out of the metal heating wire and connecting with an external circuit structure. 2 . The double-glass crystalline silicon solar cell module with snow melting function according to claim 1 , wherein a metal heating wire is embedded in one side of the first encapsulation film and/or the second encapsulation film. 3 . 3. The double-glass crystalline silicon solar cell module with snow-melting function according to claim 1, characterized in that, the metal heating wire is embedded in the first encapsulant film on the side facing the glass front plate or embedded in the second encapsulant film on the side facing the glass backplane. 4. The double-glass crystalline silicon solar cell module with snow-melting function according to any one of claims 1-3, wherein the metal heating wire is a tungsten wire or a silver wire. 5 . The double-glass crystalline silicon solar cell module with snow-melting function according to claim 1 , wherein the first encapsulation film and/or the second encapsulation film is a polymer material film. 6 . The double-glass crystalline silicon solar cell module with snow-melting function according to claim 5 , wherein the polymer film is a mixture of one or more of PVB, EVA and POE. 7. The double-glass crystalline silicon solar cell assembly with snow-melting function as claimed in claim 5 or 6, wherein the first encapsulation film and/or the second encapsulation film are white film, transparent film And a mixture of one or more than one of the colored films.