CN214477486U

CN214477486U - Solar cell module

Info

Publication number: CN214477486U
Application number: CN202120284424.0U
Authority: CN
Inventors: 潘智林; 齐鹏飞; 胡华毅
Original assignee: Zhongshan Ruike New Energy Co ltd
Current assignee: Zhongshan Ruike New Energy Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-10-22
Anticipated expiration: 2031-02-01

Abstract

The utility model discloses a solar cell module, which comprises a solar power generation layer, wherein the solar power generation layer is provided with a power generation layer anode and a power generation layer cathode; the conductive lead layer is attached to the solar power generation layer and provided with a positive electrode lead-out area electrically connected with the positive electrode of the power generation layer and a negative electrode lead-out area electrically connected with the negative electrode of the power generation layer; the first packaging layer is pasted and covered with the conductive lead layer; the conductive lead layer and the first packaging layer are silk-screen film layers. The solar cell adopting the structure does not need to directly weld the back electrode, and avoids the damage to the back electrode caused by welding. Meanwhile, the thicknesses of the conductive lead layer and the first packaging layer can be controlled by manufacturing different silk-screen printing plates, and the method is suitable for small-sized solar battery packs.

Description

Solar cell module

Technical Field

The utility model relates to a solar cell technology especially relates to a solar module.

Background

The conventional solar cell usually requires electric welding of the back electrode during the assembly process, but the back electrode is not easy to weld, and the high temperature of welding can damage the back electrode. In addition, the traditional solar cell packaging technology usually adopts EVA + backboard glass packaging or EVA + PET packaging, the packaging thickness of the common packaging scheme is relatively thick, the common packaging scheme is not suitable for small solar cells, and the small solar cells packaged by the common packaging scheme can limit the service environment of the small solar cells.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a through the mode encapsulation of silk screen printing rete, can change the solar module of encapsulation thickness as required.

According to the utility model discloses a solar module of some embodiments, include:

the solar power generation layer is provided with a power generation layer anode and a power generation layer cathode; the conductive lead layer is attached to the solar power generation layer and provided with a positive electrode lead-out area electrically connected with the positive electrode of the power generation layer and a negative electrode lead-out area electrically connected with the negative electrode of the power generation layer;

the first packaging layer is attached to and covers the conductive lead layer;

the conductive lead layer and the first packaging layer are silk-screen film layers.

The solar cell adopting the structure does not need to directly weld the back electrode, and avoids the damage to the back electrode caused by welding. Meanwhile, the thicknesses of the conductive lead layer and the first packaging layer can be controlled by manufacturing different silk-screen printing plates, the use thickness under each scene is met, and the method is suitable for small-sized solar battery packs.

According to the utility model discloses a solar module of some embodiments, anodal district subsides of drawing forth covers the electricity generation layer is anodal, the negative pole draws forth the district and pastes and cover the electricity generation layer negative pole.

According to the utility model discloses a solar module of some embodiments, be equipped with on the first encapsulation layer and be used for revealing the first breach in positive pole extraction district and be used for revealing the second breach in negative pole extraction district.

According to the utility model discloses a solar module of some embodiments still includes the second encapsulated layer, the second encapsulated layer pastes and covers on the first encapsulated layer, seted up on the second encapsulated layer with the corresponding third breach of first breach and with the corresponding fourth breach of second breach.

According to the utility model discloses a solar module of some embodiments, the second encapsulated layer is the silk screen printing rete.

According to some embodiments of the present invention, the conductive lead layer is a conductive copper layer or a conductive silver aluminum layer.

According to the utility model discloses a solar module of some embodiments, first encapsulation layer is the insulating printing ink of resistant time.

According to the utility model discloses a solar module of some embodiments, solar power generation layer is including the front electrode layer, solar energy absorbing layer and the back electrode layer that stack gradually.

According to some embodiments of the present invention, the solar cell module further comprises a solar absorbing layer formed by laminating a cadmium telluride thin film, a copper indium gallium selenide thin film, a silicon-based thin film, a gallium arsenide thin film, and a perovskite thin film.

According to the utility model discloses a solar module of some embodiments, solar power generation layer's edge all around is equipped with laser drawing district.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a cross-sectional view of the side of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention;

fig. 3 is a structural view of a solar power generation layer according to an embodiment of the present invention;

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present application by combining the specific contents of the technical solutions.

Referring to fig. 1 and 2, the present invention provides a solar cell module, including:

the solar power generation layer 1 is characterized in that a power generation layer anode 11 and a power generation layer cathode 12 are arranged on the solar power generation layer 1;

the solar photovoltaic module comprises a conductive lead layer 2, wherein the conductive lead layer 2 is attached to a solar power generation layer 1, and the conductive lead layer 2 is provided with a positive electrode lead-out area 21 electrically connected with a positive electrode 11 of the power generation layer and a negative electrode lead-out area 22 electrically connected with a negative electrode 11 of the power generation layer;

the first packaging layer 3, the first packaging layer 3 sticks and covers the conductive lead layer 2;

the conductive lead layer 2 and the first packaging layer 3 are silk-screen film layers. Preferably, the conductive lead layer 2 is generally made of conductive copper paste, conductive silver paste or conductive silver aluminum paste, the paste is printed on the solar power generation layer 1 by a screen printing method and is cured by a drying process to form the conductive lead layer 2, the conductive lead layer 2 is attached to the power generation layer anode 11 and the power generation layer cathode 12 of the solar power generation layer 1, so that the conductive lead layer 2 is electrically connected with the solar power generation layer 1, in addition, the shape of the conductive lead layer 2 can be changed by manufacturing screen printing plates which penetrate through different areas, so that different shape requirements can be met, and the thickness of the conductive lead layer 2 can be changed by manufacturing screen printing plates with different meshes. The first packaging layer 3 is printed on the solar power generation layer 1 and the conductive lead layer 2 through silk screen printing, preferably, the first packaging layer 3 is weather-proof and insulating ink, the ink is printed on the conductive lead layer 2 through the silk screen printing method and is cured through a drying process to form the first packaging layer 3, the ink covers the conductive lead layer 2, the insulating packaging effect can be achieved, and the thickness can be made very thin. In addition, the shape of the first encapsulation layer 3 can be changed by manufacturing the silk-screen printing plates penetrating through different areas so as to meet different shape requirements, and the thickness of the first encapsulation layer 3 can be changed by manufacturing the silk-screen printing plates with different meshes. The solar cell adopting the structure does not need to directly weld the back electrode, and avoids the damage to the back electrode caused by welding. Meanwhile, the thicknesses of the conductive lead layer 2 and the first packaging layer 3 can be controlled by manufacturing different silk-screen printing plates, and the method is suitable for small-sized solar battery packs.

In some embodiments of the present invention, the positive electrode lead-out area 21 is attached to the positive electrode 11 of the power generation layer, the negative electrode lead-out area 21 is attached to the negative electrode 12 of the power generation layer, and the first package layer 3 is provided with a first notch 31 for exposing the positive electrode lead-out area 21 and a second notch 32 for exposing the negative electrode lead-out area 22. The positive electrode lead-out region 21 and the negative electrode lead-out region 22 are both disposed above the solar power generation layer, and external devices are easily connected to the solar cell.

In some embodiments of the present invention, the package structure further includes a second packaging layer 4, the second packaging layer 4 is a silk screen printing film layer, the second packaging layer 4 is attached to the first packaging layer 3, and a third gap 41 corresponding to the first gap 31 and a fourth gap 42 corresponding to the second gap 32 are disposed on the second packaging layer 4. Preferably, the second encapsulation layer 4 is water-based paint or ink with weather resistance and high strength, the second encapsulation layer 4 is printed on the first encapsulation layer 3 through silk screen printing, in addition, the shape of the second encapsulation layer 4 can be changed by manufacturing silk screen printing plates penetrating through different areas so as to meet different shape requirements, and the thickness of the second encapsulation layer 4 can be changed by manufacturing silk screen printing plates with different meshes. Preferably, the battery parameter information can be printed on the second packaging layer 4 by changing the transmission area of the silk-screen printing plate.

Referring to fig. 3, in some embodiments of the present invention, the solar power generation layer 1 includes a front electrode layer 10, a solar energy absorption layer 20 and a back electrode layer 30, which are sequentially stacked, and the solar energy absorption layer 10 is formed by stacking one or more of a cadmium telluride thin film, a copper indium gallium selenide thin film, a silicon-based thin film, a gallium arsenide thin film and a perovskite thin film.

In some embodiments of the present invention, the edge of the solar power generation layer 1 is provided with the laser scribing region 13. Preferably, the solar power generation layer 1 is to be laser lines engraved at a specific laser wavelength at 2-3mm from the peripheral edge to prevent the back electrode 30 from contacting the TCO film of the front electrode 10 to short-circuit.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A solar cell module, comprising:

the solar power generation layer (1), wherein a power generation layer anode (11) and a power generation layer cathode (12) are arranged on the solar power generation layer (1);

the solar photovoltaic power generation device comprises a conductive lead layer (2), wherein the conductive lead layer (2) is attached to the solar power generation layer (1), and the conductive lead layer (2) is provided with a positive electrode leading-out area (21) electrically connected with a positive electrode (11) of the power generation layer and a negative electrode leading-out area (22) electrically connected with a negative electrode (12) of the power generation layer;

the first packaging layer (3), the first packaging layer (3) is pasted on the conductive lead layer (2);

the conductive lead layer (2) and the first packaging layer (3) are silk-screen film layers.

2. A solar module according to claim 1, characterized in that the positive lead-out region (21) is attached to the power generation layer positive electrode (11) and the negative lead-out region (22) is attached to the power generation layer negative electrode (12).

3. The solar cell module as claimed in claim 2, characterized in that the first encapsulation layer (3) is provided with a first cutout (31) for exposing the positive lead-out region (21) and a second cutout (32) for exposing the negative lead-out region (22).

4. The solar cell module according to claim 3, further comprising a second encapsulant layer (4), wherein the second encapsulant layer (4) is attached to the first encapsulant layer (3), and a third notch (41) corresponding to the first notch (31) and a fourth notch (42) corresponding to the second notch (32) are formed on the second encapsulant layer (4).

5. The solar cell module as claimed in claim 4, wherein the second encapsulation layer (4) is a silk screen film layer.

6. The solar cell module as claimed in claim 1, wherein the electrically conductive lead layer (2) is an electrically conductive copper layer or an electrically conductive silver aluminum layer.

7. A solar module according to claim 1, characterized in that the first encapsulant layer (3) is an insulating ink.

8. A solar cell module according to claim 1, wherein the solar electricity generation layer (1) comprises a front electrode layer (10), a solar energy absorption layer (20) and a back electrode layer (30) which are sequentially stacked.

9. A solar cell module according to claim 8, characterized in that the solar energy absorbing layer (20) is formed by laminating one or more of a cadmium telluride thin film, a copper indium gallium selenide thin film, a silicon based thin film, a gallium arsenide thin film and a perovskite thin film.

10. A solar module according to claim 1, characterized in that the solar layer (1) is provided with laser scribe areas (13) at its peripheral edges.