CN222638992U - IBC efficient photovoltaic light component - Google Patents

Abstract

The utility model discloses an IBC efficient photovoltaic light assembly, which comprises a transparent front plate, a glue film, a battery piece, a conductive adhesive, an insulating layer, a conductive foil, a glue film and an integrated back plate which are laminated together from top to bottom. In this structure, the transparent front plate is made of a non-fluorine-containing material such as resin, which is excellent in light transmittance and can effectively protect the battery cells. The integrated backboard is made of glass fiber and epoxy resin material composite materials, and the integral strength of the assembly is ensured by the excellent stiffness and the capability of reducing the local deformation of the assembly. The entire structure is secured together by a high temperature lamination process to form a robust, lightweight, flexible solar cell light assembly.

Description

IBC efficient photovoltaic light component

Technical Field

The utility model relates to an IBC efficient photovoltaic light component, belongs to the technical field of solar photovoltaic power generation, and is particularly suitable for production and manufacture of solar photovoltaic components.

Background

The product design structure of photovoltaic modules has maintained substantially the traditional 5-layer product laminate structure, i.e., backsheet (or glass)/glue film/battery sheet/glue film/tempered glass, since the commercialization of photovoltaic modules for over twenty years. The structure has enough hardness and excellent protection for the internal battery piece due to the existence of single-sided glass or double-sided glass materials. However, this conventional laminate selection suffers from drawbacks such as high weight, little flexibility, etc. Meanwhile, the roof is not beneficial to being installed and applied on the roof of the color steel tile factory building with weak bearing capacity and the related building designed as a curved roof due to the large weight and no flexibility.

Disclosure of Invention

The utility model aims to solve the problems of heavy weight and inflexibility of the traditional glass assembly, and provides a novel IBC high-efficiency photovoltaic light assembly. The present utility model is an IBC high efficiency photovoltaic light module laminated from several light materials comprising an integral backsheet rather than using photovoltaic glass materials.

The technical scheme is that the IBC high-efficiency photovoltaic light assembly comprises a transparent front plate, a glue film, a battery piece, a conductive glue and insulating layer, a conductive foil, a glue film and an integrated back plate which are laminated together sequentially from top to bottom.

The existing component laminate materials and sequence are as follows:

Photovoltaic glass- & gt adhesive film- & gt battery piece- & gt adhesive film- & gt photovoltaic glass (or backboard).

The utility model gives up the use of photovoltaic glass. The photovoltaic glass laminate material in the conventional module laminate is replaced.

The front surface of the battery plate is independently protected by adopting a transparent front plate material, the transparent front plate is made of a double-layer structure full-resin material, the upper layer is made of a fluorine-containing resin material, and the lower layer is made of a full-resin material. The surface evenness is high, the light weight and the softness are realized, and the whole light transmittance of the component is high and the power loss is low. In addition to the advantages, the addition of fluorine makes the battery piece excellent in ultraviolet aging resistance and damp-heat aging resistance, and can effectively protect the battery piece from external damage for a long time by combining the excellent hardness performance. After high-temperature lamination, the deformation degree is negligible and the adhesive force with adhesive film materials such as EVA/POE is excellent. Due to the selection of the integrated backboard, high-transmittance enhancement materials such as glass fiber and the like selected by common photovoltaic light components can be abandoned between the transparent front board of the component and the battery piece layer, so that the light transmission effect can be further optimized.

The integrated backboard is formed by compounding glass fiber and epoxy resin materials. The integrated backboard formed by compounding the two materials is light in weight, good in flexibility and excellent in structural strength relative to the photovoltaic glass, and can reduce the local deformation, so that the whole assembly is protected from damage caused by overlarge deformation. And the adhesive film is laminated with the conductive foil, the insulating layer, the conductive adhesive and the battery piece between the front back plate and the back plate, wherein the adhesive film material can be EVA, POE, EPE, PVB and other materials, and the overall lamination adhesive force is excellent after high-temperature lamination.

Compared with the prior art, the IBC high-efficiency photovoltaic light component provided by the utility model has the beneficial effects that the IBC high-efficiency photovoltaic light component with light weight, flexibility and excellent strength is formed after the transparent front plate, the battery piece, the conductive adhesive, the insulating layer, the conductive foil, the integrated back plate and the adhesive film are subjected to high-temperature lamination, so that the possibility of paving roof photovoltaic on a color steel tile factory roof with weaker bearing and a building with a curved roof structure is realized. Has the following advantages:

(1) The glass assembly has light weight and thin thickness, and the whole assembly has lighter weight and thinner thickness compared with the glass assembly and can be applied to the surface with weaker bearing force.

(2) The assembly has certain flexibility, can be suitable for being applied to a surface with a certain radian, increases the effective light receiving area and is attractive.

(3) And compared with the glass assemblies with the same battery piece arrangement, the assembly has thinner thickness and lighter weight under the condition of approximately the same surface area, and effectively saves the transportation cost.

(4) The manufacturing process of the assembly is simpler and more convenient, the control and the operation are easy, the production steps are reduced, and the reject ratio can be effectively reduced.

(5) The use is convenient, the optimized assembly lamination structure enables the use to be more convenient and stable, and the user experience is better.

Drawings

FIG. 1 is a schematic cross-sectional view of an assembly according to an embodiment of the present utility model;

1-transparent front plate, 2-glued membrane, 3 battery piece, 4-conducting resin, 5-insulating layer, 6-conducting foil, 7-glued membrane, 8-integration backplate.

Detailed Description

The utility model is further elucidated below in connection with the drawings and the specific embodiments.

As shown in fig. 1, the IBC high efficiency photovoltaic light module comprises a transparent front plate 1/adhesive film 2/battery piece 3/conductive adhesive 4+ insulating layer 5/conductive foil 6/adhesive film 7/integrated back plate 8 laminated together from top to bottom. The conductive adhesive 4 and the insulating layer 5 are arranged on the same layer at intervals. In this structure, the transparent front plate 1 is a transparent front plate 1 made of a non-fluorine-containing material such as resin, which is excellent in light transmittance and can effectively protect the battery cells. The integrated backboard 8 is made of a composite material of glass fiber and epoxy resin, and the integral strength of the assembly is ensured by the excellent stiffness and the capability of reducing the local deformation of the assembly. The entire structure is secured together by a high temperature lamination process to form a robust, lightweight, flexible solar cell light assembly.

Through the selection of the transparent front plate and the integrated back plate, optimization in multiple aspects is realized. First, the front side adopts the transparent front plate alone to ensure the light transmittance of the front side of the assembly and the protection of the battery piece. Secondly, the integrated backboard is selected for use in the selection of the backboard, so that the integral structural strength of the assembly is ensured, and the high quality of the assembly is further ensured. Finally, the total material selection gives up the traditional photovoltaic glass, and the characteristics of light weight and excellent flexibility are realized. The combined effect of all these advantages allows the IBC high efficiency photovoltaic light modules of the present utility model to reach a high level of performance and usability.

The IBC high-efficiency photovoltaic light component provided by the utility model has the advantages that the product becomes a choice with light weight, thin thickness and good flexibility due to the synergistic effect of the materials.

The manufacturing process flow of the IBC high-efficiency photovoltaic light component comprises the following steps:

1. The material cutting and preparing method comprises the steps of solar cell, insulating layer, conductive adhesive, conductive foil, transparent front plate, integrated back plate, adhesive film and the like. These materials are cut to the required dimensions and the materials are subjected to strict quality checks to ensure compliance with manufacturing requirements. The operation flow of brushing conductive adhesive and the like accords with the corresponding operation specification.

2. And detecting the solar cell, namely detecting parameters such as appearance, chromatic aberration, resistivity and the like of the solar cell so as to ensure that the performance and the quality of the solar cell meet the requirements.

3. And welding, namely welding the solar cell according to the design requirement to form a cell string, and welding an interconnection bar, wherein the welding quality and the stability of the cell are required to be paid attention to during welding.

4. And (3) manufacturing the assembly, namely packaging, high-temperature laminating, junction box assembling and curing the welded battery strings with materials such as a transparent front plate, an insulating layer, conductive adhesive, conductive foil, an integrated back plate, an adhesive film and the like according to the assembly arrangement to form the IBC high-efficiency photovoltaic light assembly. Care is taken in the encapsulation process to be taken with respect to tightness and water resistance.

5. And testing and packaging, namely testing the manufactured IBC high-efficiency photovoltaic light assembly, including electrical performance testing, appearance detection, weather resistance testing and the like, so as to ensure that the IBC high-efficiency photovoltaic light assembly meets the design requirements and quality standards. Finally, packaging is carried out for transportation and storage.

The foregoing is merely a preferred embodiment of the utility model, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the utility model, which modifications would also be considered to be within the scope of the utility model.

Claims (2)

1. The IBC high-efficiency photovoltaic light assembly is characterized by comprising a transparent front plate, a glue film, a battery piece, a conductive glue and insulating layer, a conductive foil, a glue film and an integrated backboard, wherein the transparent front plate, the glue film, the battery piece, the conductive glue and insulating layer, the conductive foil, the glue film and the integrated backboard are sequentially laminated together from top to bottom, and the integrated backboard is made of a composite material of glass fibers and epoxy resin materials.

2. The IBC high efficiency photovoltaic light module according to claim 1, wherein the transparent front plate is made of a double-layer structure full resin material, the upper layer is made of a fluorine-containing resin material, and the lower layer is made of a full resin material.