CN215955296U

CN215955296U - Flexible photovoltaic module packaging material

Info

Publication number: CN215955296U
Application number: CN202120924831.3U
Authority: CN
Inventors: 萧吉宏; 徐晓华; 李娜; 连重炎; 刘林
Original assignee: Xuancheng Kaisheng New Energy Technology Co ltd
Current assignee: Xuancheng Kaisheng New Energy Technology Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-03-04
Anticipated expiration: 2031-04-29

Abstract

One or more embodiments of the present disclosure provide a flexible photovoltaic module packaging material, which includes a water blocking film and a glass fiber reinforced plastic, wherein the water blocking film is combined with the glass fiber reinforced plastic to form a packaging material, the packaging material is formed by combining the glass fiber reinforced plastic and the water blocking film, the glass fiber reinforced plastic has excellent light transmittance and weather resistance, the glass fiber reinforced plastic is very scratch-resistant, the production cost is low, and the whole cost of the module is greatly reduced when the novel packaging material mainly composed of the glass fiber reinforced plastic is used for a photovoltaic module, and the localization of the flexible CIGS packaging material can be realized.

Description

Flexible photovoltaic module packaging material

Technical Field

One or more embodiments of the present disclosure relate to the technical field of photovoltaic module production equipment, and in particular, to a flexible photovoltaic module encapsulating material.

Background

The flexible front plate and the back plate adopted by the existing flexible photovoltaic module packaging are both made of composite layer materials, namely, a plurality of layers of functional materials are compounded, the typical structure of the flexible front plate and the back plate is as shown in the following figure, because the single layer material can not meet the requirement of the photovoltaic module for outdoor use for 25 years, therefore, the multilayer functional materials have to be compounded together, which causes the complex structure, the difficult process control and the high cost of the existing packaging materials, especially the flexible front plate, to realize the requirements of ultraviolet resistance, water vapor resistance, high light transmission, high flame retardance, scratch resistance and the like, domestic manufacturers can hardly meet the requirements, domestic requirements can only depend on imported foreign products, although the performance of foreign products is very excellent, the scratch resistance is far from meeting the requirements, the flexible photovoltaic module is very easy to scratch in the production process of the photovoltaic module and causes scrapping, the use cost is high, and the cost is usually more than half of the whole flexible photovoltaic module.

Disclosure of Invention

In view of the above, an object of one or more embodiments of the present disclosure is to provide a flexible photovoltaic module encapsulant material, which solves one or all of the above problems.

In view of the above, the flexible photovoltaic module packaging material provided by one or more embodiments of the present disclosure includes a water-resistant film and a glass fiber reinforced plastic, wherein the water-resistant film is compounded with the glass fiber reinforced plastic to form the packaging material.

Optionally, the water-blocking film is a plastic film with a thickness of 50um-125 um.

Optionally, the water-blocking film is made of PET or a modified PET organic polymer material, or a material with a fluorine coating and a metal oxide layer on the surface.

Optionally, the water-resistant film is compounded on one side surface of the glass fiber reinforced plastic.

Optionally, the water-resistant film is compounded into the interior of the glass fiber reinforced plastic.

Optionally, the glass fiber reinforced plastic includes a substrate, and a resin glue solution is poured on the substrate, and the resin glue solution has fiber yarns therein.

Optionally, the thickness of the glass fiber reinforced plastic is selected to be 100um-800 um.

As can be seen from the above description, the flexible photovoltaic module packaging material provided in one or more embodiments of the present disclosure is a packaging material formed by combining glass fiber reinforced plastics and a water-blocking film, the light transmittance and weather resistance of the glass fiber reinforced plastics are very excellent, the glass fiber reinforced plastics are very scratch-resistant, the production cost is low, and the use of a novel packaging material mainly made of glass fiber reinforced plastics in a photovoltaic module will greatly reduce the overall cost of the module, and can realize localization of the flexible CIGS packaging material.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

Fig. 1 is a schematic view of a flexible photovoltaic module encapsulant of one embodiment of the present description;

fig. 2 is a schematic view of a flexible photovoltaic module encapsulant of another embodiment herein;

wherein 1, a water-resistant film; 2. glass fiber reinforced plastic; 3. a substrate.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In view of the above, the flexible photovoltaic module encapsulating material provided by one or more embodiments of the present specification includes a water-resistant film 1 and a glass fiber reinforced plastic 2, and the water-resistant film 1 and the glass fiber reinforced plastic 2 are compounded to form the encapsulating material. Wherein, the inner structure of the photovoltaic module using the packaging material is glass fiber reinforced plastic, bonding glue, a water blocking film, bonding glue, a CIGS battery, a back plate, 100um-800um is selected for the thickness of the glass fiber reinforced plastic, the thickness of the bonding glue is 50um-300um, the light transmittance and the weather resistance of the glass fiber reinforced plastic 2 are excellent, the glass fiber reinforced plastic 2 is very scratch-resistant, the production cost is low, the novel packaging material using the glass fiber reinforced plastic 2 as a main body is used for the photovoltaic module to greatly reduce the whole cost of the module, and the localization of the flexible CIGS packaging material can be realized, the water blocking film 1 is used for placing water vapor to enter the corrosion battery inside the module, and the failure of the module is caused.

In one embodiment, the water-resistant film 1 is a plastic film with a thickness of 50um to 125 um. The material can be pure PET, modified PET organic polymer material, or material with fluorine coating (PVDF, ECTFE, PVF, THV, etc.) and metal oxide layer (alumina, silicon oxide, etc.) on the surface.

In an embodiment, the water-blocking film 1 is compounded on one side surface of the glass fiber reinforced plastic 2, the glass fiber reinforced plastic 2 comprises a substrate 3, resin glue is poured on the substrate 3, fiber yarns are arranged in the resin glue, the substrate is the water-blocking film 1, the compounding of the water-blocking film 1 and the glass fiber reinforced plastic 2 does not need to introduce an additional process, the substrate is directly made into the water-blocking film 1, the resin glue is poured on the water-blocking film 1, limiting yarns are introduced during pouring, and then the packaging material is prepared through the processes of preforming, heating curing, cooling and the like, so that the production cost of the assembly is reduced.

In one embodiment, the water-resistant film 1 is incorporated inside the glass fiber reinforced plastic 2. The concrete mode is that when resin glue is poured on the substrate 3, the water-resisting film 1 is introduced into the interior of the glass fiber reinforced plastic 2.

The thinner the glass fiber reinforced plastic is, the better the light transmittance is, and the thicker the glass fiber reinforced plastic is;

selecting the thickness of the adhesive: the initial thickness selected at present is 200um, and the thickness which can be used is 50um-300 um; the material with ultraviolet cut-off wavelength of 350nm-380nm can be selected from EVA, POE, etc

The thickness of the photovoltaic module made of the packaging material is controlled to be 2 mm.

The light transmittance is selected at 400-1100nm, the glass fiber reinforced plastic is selected to be more than 90%, the adhesive film is selected to be more than 85%, and the water-resistant film is selected to be more than 80%

According to the utility model, the glass fiber reinforced plastic and the water-blocking film are compounded to form the packaging material, the light transmittance and the weather resistance of the glass fiber reinforced plastic are excellent, the glass fiber reinforced plastic is very scratch-resistant, the production cost is low, the overall cost of the assembly is greatly reduced when the novel packaging material taking the glass fiber reinforced plastic as a main body is used for a photovoltaic assembly, and the localization of the flexible CIGS packaging material can be realized.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.

While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description.

It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. The flexible photovoltaic module packaging material is characterized by comprising a water-resistant film and glass fiber reinforced plastic, wherein the water-resistant film is compounded with the glass fiber reinforced plastic to form the packaging material, the glass fiber reinforced plastic comprises a substrate, a resin glue solution is poured on the substrate, and fiber yarns are arranged in the resin glue solution.

2. The flexible photovoltaic module encapsulant of claim 1, wherein the water-blocking film is a plastic film having a thickness of 50um to 125 um.

3. The packaging material of claim 1, wherein the water-resistant film is made of PET or modified PET organic polymer material, or a material with a fluorine coating or a metal oxide layer on the surface.

4. The flexible photovoltaic module encapsulant of claim 1, wherein the water-resistant film is laminated to one side of the glass fiber reinforced plastic.

5. The flexible photovoltaic module encapsulant of claim 1, wherein the water-resistant film is incorporated into the interior of the glass fiber reinforced plastic.

6. The flexible photovoltaic module encapsulant of claim 1, wherein the glass fiber reinforced plastic is selected to have a thickness of 100-800 um.