CN220075804U

CN220075804U - High-permeability double-sided grid glass

Info

Publication number: CN220075804U
Application number: CN202321229313.5U
Authority: CN
Inventors: 徐力; 田小江
Original assignee: Ningbo Lefeng New Energy Co ltd
Current assignee: Ningbo Lefeng New Energy Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-11-24
Anticipated expiration: 2033-05-19

Abstract

The utility model discloses high-permeability double-sided grid glass, which belongs to the technical field of glass structures and is used for providing high-permeability double-sided grid glass with better protective performance. The utility model discloses a multilayer structures such as outer protective structure that is provided with organic glass layer, tensile fiber layer and toughened glass layer for photovoltaic wafer, can maintain monoblock glass's form when the outermost toughened glass layer is not destroyed, and after outer structure received the striking and lose the effect, though lost form maintenance ability, but the protective structure of inlayer still can maintain photovoltaic wafer's normal work, consequently has better barrier propterty.

Description

High-permeability double-sided grid glass

Technical Field

The utility model relates to the technical field of glass structures, in particular to high-permeability double-sided grid glass.

Background

At present, in the field of photovoltaic power generation, a component for realizing a photoelectric conversion function needs to be protected to improve the working stability and durability, a transparent material, possibly a plastic film layer and possibly glass, is covered on the outer surface of a photovoltaic wafer for realizing the photoelectric conversion, but the protection measure is relatively single, once the protection layer is broken in a severe environment, the photovoltaic core structure behind the photovoltaic core structure is lost, and possibly the photovoltaic core structure is broken together at the moment that the protection layer is broken, so that the protection capability is very limited, and the photovoltaic core structure is obviously deficient for photovoltaic equipment which needs to work in a severe environment for a long time.

Disclosure of Invention

The utility model aims to provide high-permeability double-sided grid glass with better protection performance.

In order to achieve the above object, the present utility model provides a high-transmittance double-sided mesh glass: including toughened glass layer and organic glass layer, be provided with tensile fiber layer between organic glass layer and the toughened glass layer, tensile fiber layer with be provided with flexible thin film layer between the toughened glass layer, flexible thin film layer pass through the viscose layer with toughened glass layer fixed connection prevents when toughened glass layer is damaged that the piece granule splashes and causes the secondary injury.

Preferably, the thickness of the tempered glass layer is 2.0 to 2.5mm, and usually 2.2mm is used.

Preferably, the thickness of the organic glass layer is 1.2 to 1.5mm, and usually 1.25mm is used.

Preferably, the thickness of the tensile fiber layer is 0.01-0.02 mm, the width of the fiber strips of the tensile fiber layer in the direction parallel to the organic glass layer is 1.5-2.0 mm, and the fiber strips are crisscrossed to form a grid structure which extends over the whole glass.

Preferably, the thickness of the flexible film layer is 0.6 to 0.8mm, and usually 0.7mm is used.

Preferably, the thickness of the adhesive layer is one fifth of the thickness of the flexible film layer, and the adhesive layer does not need to be increased after actually reaching a thickness following the increase in thickness of the flexible film layer, because the adhesion is sufficient.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The outer protective structure of the photovoltaic wafer is provided with the organic glass layer, the tensile fiber layer, the toughened glass layer and other multi-layer structures, so that the form of the whole glass can be maintained when the toughened glass layer at the outermost layer is not damaged, and after the outer structure is impacted to lose effect, the form maintaining capability is lost, but the protective structure at the inner layer can still maintain the normal work of the photovoltaic wafer, so that the photovoltaic wafer has better protective performance;

(2) Through setting up tensile fiber layer between organic glass layer and toughened glass layer, receive the striking and break through the bearing limit on toughened glass layer when the front of photovoltaic board, tensile fiber layer just can disperse stress around, reduces the deformation on organic glass layer to reduce the influence to the photovoltaic wafer, further improved the protective structure to the protective capability of core part.

Drawings

FIG. 1 is a perspective cross-sectional view of the high-permeability double-sided mesh glass;

FIG. 2 is an enlarged view of a portion of the high-permeability double-sided mesh glass at A of FIG. 1;

fig. 3 is a layout of the tensile fiber layer of the high-permeability double-sided mesh glass.

In the figure: 1. a tempered glass layer; 2. an organic glass layer; 3. an adhesive layer; 4. a flexible film layer; 5. and (3) a tensile fiber layer.

Detailed Description

The present utility model will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present utility model, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The high-permeability double-sided grid glass shown in fig. 1-3 comprises a toughened glass layer 1 and an organic glass layer 2, wherein the toughened glass layer 1 is formed by processing common glass by surface stress, the organic glass layer is made of polymethyl methacrylate, the toughened glass has good light transmittance, and the toughened glass has strong compression resistance and bending resistance in different cases, so that good surface morphology can be maintained; the organic glass layer 2 is not easy to break, when the toughened glass layer 1 is damaged, the organic glass layer 2 can still serve as the last defense line of the transparent protective structure to protect the photovoltaic silicon wafer at the back, and when attention is needed, the thickness selection of the toughened glass layer 1 and the organic glass layer 2 needs to be controlled within a reasonable range, and the configuration cost is increased due to the fact that the thickness is too thick; the protective capability is insufficient when the thickness of the toughened glass layer 1 is too thin, the thickness of the organic glass layer 2 is generally in the range of 2.0-2.5 mm, and the thickness of the toughened glass layer 1 is generally in the range of 1.2-1.5 mm, so that the selection range is reasonable, and the cost and the protective capability can be considered.

The tensile fiber layer 5 made of polypropylene fiber materials is arranged between the organic glass layer 2 and the toughened glass layer 1, the tensile fiber layer 5 can improve the tensile capability of the whole glass and the capability of resisting frontal impact of the glass, after the toughened glass layer 1 is broken, the tensile fiber layer 5 can intercept stress to reduce the deformation of the organic glass layer 2, thereby reducing the stress transferred to the final Fang Guangfu wafer, the thickness of the tensile fiber layer 5 is generally in the range of 0.01-0.02 mm, the width of fiber strips of the tensile fiber layer 5 in the direction parallel to the organic glass layer 2 is generally in the range of 1.5-2.0 mm, fiber strips with certain thickness and width are crisscrossed to form a grid shape, the whole glass can be protected by the tensile fiber layer 5, the thickness of the flexible film layer 4 made of TPU material is in the range of 0.6-0.8 mm between the tensile fiber layer 5 and the toughened glass layer 1, the flexible film layer 4 is fixedly connected with the toughened glass layer 1 through the adhesive layer 3, the thickness of the flexible film layer 4 is generally in the range of 0.6-0.8 mm, and the flexible film layer 4 is prevented from being damaged by the adhesive layer 1, and the damage to one of the two layers is avoided, and the damage to the two layers is avoided.

Working principle: the toughened glass layer 1 has higher stress on the surface, can maintain the shape of the photovoltaic panel surface, and no matter straight or curved, the tensile fiber layer 5 can improve the anti-collision capability of the photovoltaic panel, the flexible film layer 4 can reduce the secondary injury generated after the photovoltaic panel is impacted, the organic glass layer 2 is the last line of defense of the solar panel protection structure, when the toughened glass layer 1 is lost, under the maintenance effect of the organic glass layer 2, the photovoltaic wafer protected at the rearmost can still work normally.

The foregoing has outlined the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A high-permeability double-sided mesh glass, characterized in that: including toughened glass layer (1) and organic glass layer (2), be provided with tensile fiber layer (5) between organic glass layer (2) and toughened glass layer (1), tensile fiber layer (5) with be provided with flexible thin film layer (4) between toughened glass layer (1), flexible thin film layer (4) through viscose layer (3) with toughened glass layer (1) fixed connection.

2. The high-permeability double-sided mesh glass according to claim 1, wherein: the thickness of the toughened glass layer (1) is 2.0-2.5 mm.

3. The high-permeability double-sided mesh glass according to claim 2, wherein: the thickness of the organic glass layer (2) is 1.2-1.5 mm.

4. A high transmission double-sided mesh glass as in claim 3, wherein: the thickness of the tensile fiber layer (5) is 0.01-0.02 mm, and the width of the fiber strips of the tensile fiber layer (5) in the direction parallel to the organic glass layer (2) is 1.5-2.0 mm.

5. The high-permeability double-sided mesh glass according to claim 4, wherein: the thickness of the flexible film layer (4) is 0.6-0.8 mm.

6. The high-permeability double-sided mesh glass according to claim 5, wherein: the thickness of the viscose layer (3) is one fifth of the thickness of the flexible film layer (4).