CN219626670U

CN219626670U - Solar cell module

Info

Publication number: CN219626670U
Application number: CN202320094134.9U
Authority: CN
Inventors: 刘辉; 桂裕鹏
Original assignee: Hubei Meige New Energy Technology Co ltd
Current assignee: Hubei Meige New Energy Technology Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-09-01
Anticipated expiration: 2033-02-01

Abstract

The utility model discloses a solar cell module which is characterized by comprising a front film layer, a first packaging film layer, an impact-resistant layer, a second packaging film layer, a solar cell layer, a third packaging film layer and a substrate; a plurality of fixing holes are distributed at the edge part of the solar cell module; the sealing edges are arranged at the edges of the solar cell module and the edges of the fixing holes and are formed by self-overflow. The product can prevent the edge of the product from being in direct contact with air, has good protection effect, can prevent water vapor and oxygen from invading from layers, avoids aging failure and layering of a battery assembly, improves the reliability of the product, and simultaneously, the edge wrapping is formed by self-overflow, thereby saving the process.

Description

Solar cell module

Technical Field

The utility model belongs to the technical field of photovoltaics, and particularly relates to a solar cell module.

Background

Photovoltaic power generation is a technology that uses the photovoltaic effect of a semiconductor interface to directly convert light energy into electrical energy. A key element of this technology is the solar cell. The solar cells are packaged and protected after being connected in series to form a large-area solar cell module, and then the solar cell module is matched with components such as a power controller and the like to form the photovoltaic power generation device. Photovoltaic power generation has the advantage of being less limited by regions because sunlight shines on the earth; the photovoltaic system has the advantages of safety, reliability, no noise, low pollution, no fuel consumption, and short construction period, and can generate electricity and supply power on site without erecting a power transmission line.

There are still many problems with existing solar cell modules:

because the solar cell module has a multi-layer structure, the edge of the solar cell module is directly contacted with air, the protection effect is poor, water vapor and oxygen are easy to invade from layers, the aging failure of the cell module is accelerated, and even the cell module is layered.

Disclosure of Invention

In view of the above, the solar cell module provided by the utility model can prevent the edge of the solar cell module from being in direct contact with air, has a good protection effect, can prevent water vapor and oxygen from invading from layers, can avoid aging failure and layering of the solar cell module, and can improve the reliability of products.

The method comprises the following steps:

the solar cell module is characterized by comprising a front film layer, a first packaging film layer, an impact resistant layer, a second packaging film layer, a solar cell slice layer, a third packaging film layer and a substrate; a plurality of fixing holes are distributed at the edge part of the solar cell module; the sealing edges are arranged at the edges of the solar cell module and the edges of the fixing holes and are formed by self-overflow.

Further, the sealing edge is formed by self-overflow of the first packaging adhesive film layer during lamination.

Further, the first packaging adhesive film layer, the second packaging adhesive film layer and the third packaging adhesive film layer are made of any one of the following materials: EVA, POE, PVB.

Further, the anti-fracturing protection ring is fixedly arranged in the fixing hole.

Further, the length and width dimensions of the first packaging adhesive film layer are larger than the length and width dimensions of the substrate.

Further, the front film layer is PVDF or ETFE.

The beneficial effects are that:

the solar cell module provided by the utility model can prevent the edge of the solar cell module from being in direct contact with air, has a good protection effect, can prevent water vapor and oxygen from invading from layers, can avoid ageing failure and layering of the cell module, and can improve the reliability of products.

Drawings

Fig. 1 is a schematic plan view of a solar cell module according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a solar cell module according to an embodiment of the utility model;

fig. 3 is a schematic front view of a solar cell module according to an embodiment of the utility model.

Detailed Description

Exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

Specifically, as shown in fig. 1-2, a solar cell module is characterized by comprising a front film layer 2, a first packaging adhesive film layer 1, an impact resistant layer 3, a second packaging adhesive film layer 4, a solar cell sheet layer 5, a third packaging adhesive film layer 6 and a substrate 7; a plurality of fixing holes are distributed at the edge part of the solar cell module; the sealing edges are arranged at the edges of the solar cell module and the edges of the fixing holes and are formed by self-overflow.

Preferably, the solar cell layer 5 is composed of a plurality of electrically connected solar cells.

Preferably, the cell layer can be a single-sided crystalline silicon solar cell, a double-sided crystalline silicon solar cell, an n-IBC cell, a thin film cell or a perovskite dye sensitized cell; when the battery layer is a PERC battery or other crystalline silicon batteries, welding strips are adopted for interconnection or overlapping tiles are adopted for interconnection.

Preferably, the impact-resistant layer can be a transparent PET (polyethylene terephthalate) layer or PET plated with a barrier film, and the transparent PET layer is used as a reinforcing layer to strengthen the photovoltaic module. The PET layer can be PET doped with fibers, the fibers can be glass fibers, and the mass ratio of the PET to the glass fibers is 100:20, the diameter of the glass fiber is less than or equal to 20 mu m, and the length is 0.5-3 mm.

Preferably, the mass ratio of PET to glass fiber is 100:18, the diameter of the glass fiber is less than or equal to 20 mu m, and the length is 0.5-6 mm.

Preferably, the PET layer may be a PET doped with carbon nanotubes, and the mass ratio of PET to carbon nanotubes is 100:0.5, the diameter of the carbon nano tube is 10-30 nm and the length thereof is 0.5-50 mu m.

Further, the first packaging adhesive film layer, the second packaging adhesive film layer and the third packaging adhesive film layer are made of any one of the following materials: EVA (ethylene-vinyl acetate copolymer), POE (polyolefin elastomer), PVB (polyvinyl butyral).

Further, the anti-fracturing protection ring 8 is fixedly arranged in the fixing hole, as shown in fig. 3.

Preferably, the length and width dimensions of the first packaging adhesive film layer are all more than 10mm larger than the length and width dimensions of the substrate.

During high-temperature lamination, because the size of the first packaging adhesive film layer on the substrate is larger than or equal to the size of the substrate, EVA, POE or PVB exceeding the substrate can flow into the edge area of the back surface of the assembly and the edge area of the hole, so that a self-overflowing sealing edge is formed.

Further, the front film layer is PVDF (polyvinylidene fluoride) or ETFE (ethylene-tetrafluoroethylene copolymer).

The base plate can be made of PCB glass fiber materials, also can be made of aluminum alloy plates, and comprises the following components in percentage by weight: 94.6-99.2% of Al, 0.8-1.3% of Mg, 0-1.6% of Mn, 0-1.5% of Cu and 0-1.0% of Zn.

Preferably, the peripheral edges of the assembly can be bent as required, and the bending direction is towards the backlight surface.

The beneficial effects are that:

It will be readily understood by those skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present utility model and that various modifications, combinations, substitutions, improvements, etc. may be made without departing from the spirit and principles of the utility model.

Claims

1. The solar cell module is characterized by comprising a front film layer, a first packaging film layer, an impact resistant layer, a second packaging film layer, a solar cell slice layer, a third packaging film layer and a substrate; a plurality of fixing holes are distributed at the edge part of the solar cell module; the sealing edges are arranged at the edges of the solar cell module and the edges of the fixing holes and are formed by self-overflow.

2. The solar module of claim 1, wherein the sealed edge is formed by a first encapsulant film layer that overflows itself when laminated.

3. The solar cell module according to claim 1 or 2, wherein the first, second and third packaging film layers are any one of the following materials: EVA, POE, PVB.

4. The solar cell module of claim 1, wherein a fracture-resistant guard ring is secured within the securing hole.

5. The solar module of claim 1, wherein the first encapsulant film layer has a length-to-width dimension that is greater than the length-to-width dimension of the substrate.

6. The solar module of claim 1, wherein the front film layer is PVDF or ETFE.