CN214848650U

CN214848650U - Color-changeable double-glass assembly

Info

Publication number: CN214848650U
Application number: CN202121441158.4U
Authority: CN
Inventors: 叶张波; 江作
Original assignee: Hengdian Group DMEGC Magnetics Co Ltd
Current assignee: Hengdian Group DMEGC Magnetics Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-11-23
Anticipated expiration: 2031-06-28

Abstract

The utility model belongs to the technical field of the photovoltaic, a changeable colour dual glass assembly is disclosed, above-mentioned changeable colour dual glass assembly is including the front bezel that stacks in proper order, the front diaphragm, the battery cluster, the mesolamella, photosensitive color-changing membrane, notacoria and backplate, and heat through the laminator and fuse together, set up photosensitive color-changing membrane between backplate and battery cluster, prevent photosensitive color-changing membrane direct contact external environment, the erosion to photosensitive color-changing membrane of outside steam has been avoided, can improve changeable colour dual glass assembly's life, ultraviolet absorbent has been added in the notacoria simultaneously, avoid ultraviolet ray to see through transparent backplate direct irradiation to make it take place the embrittlement on photosensitive color-changing membrane, improve the reliability of photosensitive color-changing membrane performance, prolong changeable colour dual glass assembly's life.

Description

Color-changeable double-glass assembly

Technical Field

The utility model relates to the field of photovoltaic technology, especially, relate to a changeable colour dual glass assembly.

Background

The mainstream assembly in the market at present can be divided into single glass assembly and dual glass assembly according to the type, and dual glass assembly is a very mainstream and important product. According to ITRPV (International technology Roadmap for Photovoltaic technology circuit diagram) statistics, the market occupancy of the dual-glass assembly is as high as 30% -40%, and at the application end of BIPV (Building Integrated Photovoltaic) market, the dual-glass assembly accounts for more than 80%. Among the prior art, increase one deck photochromism rete outside dual glass assembly's transparent toughened glass layer, can adjust dual glass assembly's luminousness according to the power of sunlight, avoid light pollution, but long-time outdoor sunshine shines and makes photochromism membrane take place the embrittlement easily, and when outdoor use, the photochromism membrane still easily receives steam and corrodes, destroys the color-changing performance of photochromism membrane to reduce dual glass assembly's life can change colour.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but color changing dual glass assembly can avoid photosensitive color changing membrane to easily take place embrittled and receive the vapor erosion, prolongs but color changing dual glass assembly's life.

To achieve the purpose, the utility model adopts the following technical proposal:

a color-changeable double-glass assembly is characterized by comprising a front plate, a front film, a battery string, a middle film, a photosensitive color-changing film, a back film and a back plate;

the front bezel, the front membrane, the battery cluster the mesolamella the photosensitive discoloration membrane the notacoria with the backplate stacks in proper order, just the front bezel, the front membrane the battery cluster the mesolamella the photosensitive discoloration membrane the notacoria with the backplate fuses through lamination heating.

Preferably, the front film, the middle film and the back film are all adhesive films.

Preferably, the front film, the middle film and the back film are one of EVA, POE and PVB.

Preferably, the back film comprises an ultraviolet absorber layer.

Preferably, the battery string is composed of a plurality of battery pieces, and the battery pieces are connected through welding.

Preferably, the battery string is a plurality of battery strings, and the plurality of battery strings are connected in series in sequence.

Preferably, the interval between two adjacent battery strings is more than 1 mm.

Preferably, the front plate and the back plate are both transparent structures.

Preferably, the front plate and the back plate are made of transparent tempered glass or transparent organic glass.

The utility model has the advantages that:

through adding photosensitive color-changing membrane between backplate and battery cluster, avoided photosensitive color-changing membrane direct contact external environment, prevent that photosensitive color-changing membrane from suffering open air steam to corrode and losing original function, add the ultraviolet absorbent in the notacoria and can prevent that the ultraviolet ray from passing through on the transparent backplate direct irradiation photosensitive color-changing membrane to avoid photosensitive color-changing membrane to take place the embrittlement because of ultraviolet irradiation, prolong the life of changeable look dual glass assembly.

Drawings

Fig. 1 is the structure schematic diagram of the color-changeable dual-glass assembly of the present invention.

In the figure:

1. a front plate; 2. a front film; 3. a battery string; 4. a middle membrane; 5. a photosensitive color-changing film; 6. a back film; 7. a back plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

This embodiment provides a changeable colour dual glass assembly, set up photosensitive color-changing membrane between backplate and battery cluster, can avoid photosensitive color-changing membrane direct contact external environment, suffer external steam and corrode and lose the function, add the ultraviolet absorbent simultaneously in the notacoria, prevent that photosensitive color-changing membrane from taking place the embrittlement because of ultraviolet irradiation, the life of extension changeable colour dual glass assembly, and this changeable colour dual glass assembly is after sunshine shines, but automatically regulated sunshine percent of pass, can reduce the indoor temperature in summer, can play heat retaining effect simultaneously winter, the equipment energy consumption is reduced, be favorable to energy saving and emission reduction. As shown in fig. 1, the color-changeable dual glass assembly comprises a front plate 1, a front film 2, a battery string 3, a middle film 4, a photochromic film 5, a back film 6 and a back plate 7, wherein the front plate 1, the front film 2, the battery string 3, the middle film 4, the photochromic film 5, the back film 6 and the back plate 7 are sequentially stacked together in sequence in the processing process, the stacked assembly is placed in a laminator, and a plurality of adhesive films are heated and fused together. The photosensitive color-changing film 5 is added in the photovoltaic module, when outdoor light is strong, the photosensitive color-changing film 5 is changed from transparent to dark color, the light passing rate is reduced, the indoor temperature can be reduced, and the indoor light is adjusted to the comfortable brightness of a user; when outdoor light weakens, photosensitive color-changing film 5 becomes transparent, improves the transmissivity of light, makes indoor light brighter. The photochromic film 5 is composed of a photosensitizer and a substrate material, the photosensitizer contains free radicals and cations, if the photosensitizer is directly added into the dual-glass assembly, the photosensitizer can migrate in the manufacturing process to influence the overall color change effect of the photochromic dual-glass assembly, the photochromic dual-glass assembly after the photosensitizer migrates can block front light from irradiating the surface of the battery, thereby influencing the power generation capacity of the photochromic dual-glass assembly and simultaneously influencing the cross-linking of polymer substances in the adhesive film, the photosensitizer in the photochromic film 5 can be compactly attached to the surface of the substrate, the problem of photosensitizer migration is avoided, the substrate material of the photochromic film 5 can be selected from high polymer organic materials such as PET and the like, the high polymer organic materials are light in weight and thin in thickness, and have higher resistance performance and water blocking effect, and the resistance performance and the water vapor isolation performance of the photochromic dual-glass assembly can be improved, thereby effectively reducing the risk of potential induced attenuation of the color-changeable double-glass assembly.

Further, in this embodiment, the front film 2, the middle film 4 and the back film 6 are adhesive films, the front film 2, the middle film 4 and the back film 6 can be made of EVA, POE or PVB, the front film 2 is used for connecting the front board 1 and the battery string 3, the middle film 4 is used for connecting the battery string 3 and the photochromic film 5, and the back film 6 is used for connecting the photochromic film 5 and the back board 7.

Preferably, an ultraviolet absorbent layer is added in the back film 6, so that ultraviolet rays in sunlight can be prevented from directly irradiating the photosensitive color-changing film 5 through the back plate 7, the photosensitive color-changing film 5 is embrittled, the service life of the color-changing dual-glass assembly is prolonged, and the ultraviolet absorbent is not required to be added in the front film 2 and the middle film 4, so that the battery string can better absorb light energy, and the light energy is converted into electric energy.

Preferably, the cell string 3 is composed of a plurality of cells, the cells are welded together by photovoltaic solder strips, the interval between the cell strings 3 is at least more than 1mm, and short circuit caused by tight adhesion between the cell strings 3 is prevented.

Optionally, both the front plate 1 and the back plate 7 are made of transparent materials, in the dual-glass assembly, the front plate 1 and the back plate 7 can be made of transparent tempered glass or transparent organic glass, so that sunlight can penetrate through the front plate 1 and the back plate 7 conveniently, and the materials of the front plate 1 and the back plate 7 can be the same or different.

Further, the utility model discloses a changeable colour dual glass assembly can be formed by following method processing, specifically is:

feeding: placing the front plate 1;

cutting: cutting the front film 2, and flatly laying the front film 2 on the front plate 1;

welding: welding the battery plates into a battery string 3;

laminating: a) cutting the middle membrane 4, and flatly laying the middle membrane 4 on the battery string 3;

b) flatly laying the photosensitive color-changing film 5 on the middle film 4;

c) cutting the back film 6, and flatly laying the back film 6 on the photosensitive color-changing film 5;

d) placing the back plate 7 on the back membrane 6;

laminating: and (4) putting the laminated assembly into a laminating machine, and heating and fusing the multiple layers of adhesive films together.

The utility model discloses a set up photosensitive color-changing membrane 5 between backplate 7 and battery cluster 3, prevent photosensitive color-changing membrane 5 direct contact external environment, avoid the erosion of photosensitive color-changing membrane 5 of outside steam, can improve the life of changeable colour dual glass assembly, add the ultraviolet absorbent layer in notacoria 6 simultaneously, avoid ultraviolet ray to see through transparent backplate 7 and directly shine on photosensitive color-changing membrane 5 and make its embrittlement, improve the reliability of photosensitive color-changing membrane 5 performance, prolong the life of changeable colour dual glass assembly, simultaneously, through carrying out organic combination with photosensitive color-changing membrane 5 and photovoltaic module, under the prerequisite that does not influence the subassembly power generation performance, can be according to the automatic colour that changes of the strong and weak of sunshine, adjust the light rate of passage, solve the problem that photovoltaic module tone is single for building, can reduce the indoor temperature in summer, can also play heat retaining effect in winter, reduces the energy consumption of the equipment and is beneficial to energy conservation and emission reduction.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The color-changeable double-glass assembly is characterized by comprising a front plate (1), a front film (2), a battery string (3), a middle film (4), a photosensitive color-changing film (5), a back film (6) and a back plate (7);

the front plate (1), the front membrane (2), the battery cluster (3), well membrane (4), photosensitive color-changing membrane (5), notacoria (6) and backplate (7) stack in proper order, just front plate (1) preceding membrane (2) battery cluster (3), well membrane (4) photosensitive color-changing membrane (5), notacoria (6) and backplate (7) fuse through lamination heating.

2. A variable color dual glass assembly according to claim 1, wherein the front film (2), the middle film (4) and the back film (6) are all adhesive films.

3. A variable color dual glass assembly according to claim 1, characterized in that the front film (2), the middle film (4) and the back film (6) are one of EVA, POE and PVB.

4. A variable color dual glass assembly according to any one of claims 1-3, wherein the backing film (6) comprises an ultraviolet absorber layer.

5. A variable color dual glass assembly according to claim 1, characterized in that the photochromic film (5) is a polymeric organic material.

6. A variable color dual glass assembly according to claim 1, characterized in that the battery string (3) is composed of a plurality of battery pieces, which are connected by welding.

7. A variable color dual glass assembly according to claim 6, characterized in that the battery string (3) is plural, and the plural battery strings (3) are connected in series in sequence.

8. A variable color dual glass assembly according to claim 7, characterized in that the interval between two adjacent battery strings (3) is more than 1 mm.

9. A variable color dual glass assembly according to claim 1, characterized in that the front plate (1) and the back plate (7) are both of transparent construction.

10. A variable color dual glass assembly according to claim 6, characterized in that the material of the front plate (1) and the back plate (7) is transparent tempered glass or transparent plexiglass.