CN209843726U

CN209843726U - Packaging film for solar photovoltaic module, solar photovoltaic module and preparation device

Info

Publication number: CN209843726U
Application number: CN201920934042.0U
Authority: CN
Inventors: 周凯炜; 施晓丹; 丁佳伟; 林文泽; 金炳修
Original assignee: Hanhua New Energy (qidong) Co Ltd
Current assignee: Hanhua New Energy (qidong) Co Ltd; Hanwha Q Cells Qidong Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2019-12-24
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a solar PV modules uses packaging film, solar PV modules and preparation facilities, the packaging film includes basement membrane and a plurality of colored stripes, colored stripe presses to establish and forms an organic whole structure on the basement membrane, a plurality of colored stripes interval sets up, and colored stripe has the width of presetting; the bottom film is made of transparent packaging materials, and the color stripes are made of color packaging materials; the preparation device of the packaging film comprises two or more extrusion mechanisms, a first forming roller and a second forming roller, wherein the first forming roller and the second forming roller are arranged side by side and are tangent. The utility model relates to a packaging film for solar photovoltaic module, through setting up the colored stripe, can highlight the difference transparent and colored, colored packaging material increases reflection of light efficiency, further improves the light energy utilization ratio, increases the output of photovoltaic module; the color stripes and the bottom film are of an integral structure, so that one process is reduced in the assembly of the photovoltaic module, and time and labor are saved; the preparation device has simple structure, easy operation and high production efficiency.

Description

Packaging film for solar photovoltaic module, solar photovoltaic module and preparation device

Technical Field

The utility model relates to a solar cell's packaging film field especially relates to a packaging film, solar PV modules and preparation facilities for solar PV modules.

Background

When a solar cell is packaged, an encapsulating material is generally required, and the encapsulating material is generally only pure color (transparent), so that the light energy utilization rate and the output power of the photovoltaic module are low. In the prior art, a color packaging material is used, so that the light reflection efficiency can be improved, but the yield is low, the sale price is high, and the peel strength of the type is low.

The solar photovoltaic module is prepared by laminating five layers of glass, a transparent EVA (ethylene vinyl acetate copolymer) packaging film, battery pieces, a transparent EVA packaging film and a back plate (the back plate can be replaced by glass), but because the light reflection rate of the transparent EVA packaging film is poor, a white EVA packaging film needs to be pasted in a gap between the battery pieces to increase the light reflection rate, and one process needs to be added, so that the process is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the prior art, the utility model provides a solar PV modules is with packaging film, solar PV modules and preparation facilities to improve light energy utilization and rate, increase PV modules's output simplifies assembly process, technical scheme is as follows:

the utility model provides a solar photovoltaic module packaging film with colored stripes, which comprises a bottom film and a plurality of colored stripes, wherein the colored stripes are pressed on the bottom film to form an integrated structure, the colored stripes are arranged at intervals, and the colored stripes have preset widths; the basement membrane is made of transparent packaging materials, and the color stripes are made of color packaging materials.

Further, the width of the color stripes is greater than 0 mm and less than or equal to 20 mm.

Further, a plurality of color stripes are uniformly arranged on the bottom film, and the distance between every two adjacent color stripes is set to be 50-300 mm.

The utility model also provides a solar photovoltaic module, it includes glass, battery and backplate, be provided with the packaging film between glass and the battery, be provided with the packaging film between battery and the backplate.

The utility model also provides a preparation facilities of solar PV modules with colored stripe is with encapsulating film, it includes two or more extrusion devices, first forming roll and second forming roll set up side by side and tangent, the shaping rubber roll is used for extruding from the encapsulating film that the extrusion device extrudes; the extruding mechanism comprises a first extruding mechanism and a second extruding mechanism, the first extruding mechanism is used for extruding a first packaging material, and the second extruding mechanism is used for extruding a second packaging material; the first extrusion mechanism comprises a first extrusion part, the lower end of the first extrusion part is provided with a plurality of first extrusion ports, and the first extrusion ports are arranged on a first horizontal plane; the second extrusion mechanism comprises a second extrusion part, a plurality of second extrusion ports are arranged at the lower end of the second extrusion part, the second extrusion ports are arranged on a second horizontal plane, the first extrusion ports and the second extrusion ports face the first forming roller, and the first horizontal plane is higher than the second horizontal plane; the distance between two adjacent first extrusion openings is larger than that between two adjacent second extrusion openings.

Further, the plurality of first extrusion ports are uniformly arranged along the length direction of the first extrusion part.

Further, the interval between two adjacent first extrusion ports is set to be in the range of 0-20 mm.

Further, the plurality of second extrusion ports are uniformly arranged along the length direction of the second extrusion part.

Further, the interval between two adjacent second extrusion ports is set to be 100-300 mm.

Further, the first packaging material is a transparent packaging material; the second packaging material is a color packaging material, the color packaging material comprises a filler, and the filler comprises titanium dioxide, titanium black or composite titanium yellow.

The utility model provides a beneficial effect that technical scheme brought as follows:

a. the utility model relates to a solar photovoltaic module uses the packaging film, through setting up the colored stripe formed by colored packaging material, can stand out the difference of transparent and colored, colored packaging material can increase the reflection of light efficiency, can further improve the light energy utilization ratio, increase the output of photovoltaic module; the color stripes and the bottom film are of an integral structure, and in the process of assembling the solar photovoltaic module, the packaging film is cut and then the battery piece is placed on the packaging film, so that one process is reduced, time and labor are saved, and the production efficiency is improved;

b. the utility model discloses a solar PV modules is with preparation facilities of packaging film, simple structure, easily operation, and production efficiency is high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a top view of an encapsulation film for a solar photovoltaic module having color stripes according to an embodiment of the present invention;

fig. 2 is a perspective view of a device for preparing an encapsulating film for a solar photovoltaic module according to an embodiment of the present invention;

fig. 3 is a side view of a device for preparing an encapsulating film for a solar photovoltaic module according to an embodiment of the present invention;

fig. 4 is a front view of a device for preparing an encapsulating film for a solar photovoltaic module according to an embodiment of the present invention.

Wherein the reference numerals include: 1-base film, 2-color stripe, 3-first forming roller, 4-second forming roller, 5-first extruding mechanism, 51-first extruding part, 52-first extruding opening, 6-second extruding mechanism, 61-second extruding part and 62-second extruding opening.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.

The utility model discloses an embodiment provides a packaging film with colored stripe, and specific structure refers to figure 1, the packaging film includes basement membrane 1 and a plurality of colored stripe 2, a plurality of colored stripe 2 press to establish and form a body structure on basement membrane 1, in solar PV modules assembly process, only need to cut the packaging film after placing the battery piece on it again can, reduce one process, labour saving and time saving, and improve production efficiency. If the basement membrane 1 is the elongated structure, a plurality of colored stripes 2 are arranged on the length direction of the basement membrane 1 surface. The color stripes 2 are arranged at intervals, the color stripes 2 have a preset width, the width of the color stripes 2 is greater than 0 mm and less than or equal to 20 mm, preferably 10 mm, and the width of the color stripes is determined by the width and the pressure of an extrusion opening of an extrusion mechanism. The plurality of color stripes 2 are preferably uniformly arranged on the base film 1, and the distance between every two adjacent color stripes 2 is 50-300 mm, preferably 100 mm. The base film 1 is made of a transparent packaging material, the color stripes 2 are made of a color packaging material, the packaging material is ethylene-vinyl acetate copolymer (EVA), and an EVA packaging film is a thermosetting adhesive film and is placed in the middle of laminated glass; the color packaging material is prepared by adding a filler with a required color into the existing packaging material, for example, adding a titanium black filler with a corresponding weight portion when a black stripe is obtained; to obtain white stripes, the corresponding weight proportions of titanium dioxide filler and the like are added.

The utility model provides a preparation facilities of packaging film, the concrete structure refers to fig. 2, fig. 3 and fig. 4, and it includes two or more extrusion mechanism, first forming roll 3 and second forming roll 4 set up side by side and tangent, first forming roll 3 and second forming roll 4 are used for the extrusion to follow packaging film that extrusion mechanism extruded, parallel placement around first forming roll 3 and second forming roll 4, and the diameter of first forming roll 3 is greater than the diameter of second forming roll 4, does benefit to the packaging material who extrudes from first extrusion opening 52 and spreads on first forming roll 3 and form whole piece membranous structure. The preparation device of the packaging film is simple in structure, easy to operate and high in production efficiency.

The extrusion mechanism has the following specific structure: the extruding mechanism comprises a first extruding mechanism 5 and a second extruding mechanism 6, wherein the first extruding mechanism 5 is used for extruding a first packaging material, and the second extruding mechanism 6 is used for extruding a second packaging material; the first extruding mechanism 5 comprises a first extruding part 51, a plurality of first extruding ports 52 are arranged at the lower end of the first extruding part 51, and the first extruding ports 52 are arranged on a first horizontal plane; the second extrusion mechanism 6 includes a second extrusion part 61, the lower end of the second extrusion part 61 is provided with a plurality of second extrusion ports 62, the second extrusion ports 62 are arranged on a second horizontal plane, the first extrusion ports 52 and the second extrusion ports 62 are both towards the first forming roller 3, the first horizontal plane is higher than the second horizontal plane, a whole film structure is formed after the packaging material extruded from the first extrusion ports 52 spreads for a certain distance on the first forming roller 3, and then the second extrusion ports 62 extrude the color packaging material to be attached to the transparent film, so the arrangement position of the second extrusion ports 62 is lower than the arrangement position of the first extrusion ports 52. The first extruding part 51 and the second extruding part 61 correspond to an extruding cavity having an accommodating space.

Specifically, the plurality of first extrusion orifices 52 are uniformly arranged along the length direction of the first extrusion part 51, and the distance between two adjacent first extrusion orifices 52 is set to be 0-20 mm, preferably 10 mm. The plurality of second extrusion ports 62 are uniformly arranged along the length direction of the second extrusion part 61, and the distance between two adjacent second extrusion ports 62 is set to be 100 mm and 300 mm, preferably 150 mm. The distance between two adjacent first extrusion ports 52 is smaller than the distance between two adjacent second extrusion ports 62, the packaging material extruded by the first extrusion ports 52 is a strip-shaped structure, and then is gradually spread on the first forming roller 3 to form a whole film structure, and if the distance is large, the whole film structure is not favorably formed.

The first packaging material is a transparent packaging material, the second packaging material is a colorful packaging material, the colorful packaging material comprises white, titanium black, titanium dioxide or composite titanium yellow, and if stripes with other colors are needed, fillers with corresponding colors can be selected. The packaging materials with various colors are arranged, so that the difference between transparency and colors can be highlighted, the white packaging materials or other colored packaging materials can better reflect sunlight for the reabsorption of the battery, the light reflection efficiency is increased, the light energy utilization rate can be further improved, and the output power of the photovoltaic module is increased, wherein the white packaging materials are preferably selected, the light reflection rate is the best, and the sunlight can be well reflected for the reabsorption of the battery.

The specific embodiment of the encapsulation film prepared using the above-described preparation apparatus is as follows: firstly, transparent EVA flows to a first forming roller from a plurality of first extrusion ports and forms a base film structure of the transparent EVA packaging film under the action of gravity, then a white or other colored (including white, black or blue) EVA packaging material is extruded from a second extrusion port and can flow to the base film to form segmented white or other colored stripes, the transparent EVA packaging film with the colored stripes is subjected to calendaring molding through the middle parts of the first forming roller 3 and the second forming roller 4, and finally the EVA packaging film with the colored stripes is obtained.

The utility model relates to a solar photovoltaic module uses the packaging film, through setting up the colored stripe formed by colored packaging material, can stand out the difference of transparent and colored, colored packaging material can increase the reflection of light efficiency, can further improve the light energy utilization ratio, increase the output of photovoltaic module; the colored stripes and the bottom film are of an integrated structure, and in the process of assembling the solar photovoltaic module, the packaging film is cut and then the cell pieces are placed on the packaging film, so that one procedure is reduced, time and labor are saved, and the production efficiency is improved. The utility model discloses a solar PV modules is with preparation facilities of packaging film, simple structure, easily operation, and production efficiency is high.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The packaging film for the solar photovoltaic module is characterized by comprising a bottom film (1) and a plurality of color stripes (2), wherein the color stripes (2) are pressed on the bottom film (1) to form an integrated structure, the color stripes (2) are arranged at intervals, and the color stripes (2) have preset widths; the basement membrane (1) is made of transparent packaging materials, and the color stripes (2) are made of color packaging materials.

2. The encapsulating film for a solar photovoltaic module according to claim 1, wherein the width of the color stripe (2) is greater than 0 mm and equal to or less than 20 mm.

3. The encapsulating film for a solar photovoltaic module according to claim 1, wherein a plurality of color stripes (2) are uniformly arranged on the base film (1), and a distance between every two adjacent color stripes (2) is set to be 50-300 mm.

4. A solar photovoltaic module comprising glass, a cell and a back plate, wherein the encapsulating film for the solar photovoltaic module according to any one of claims 1 to 3 is arranged between the glass and the cell, and the encapsulating film for the solar photovoltaic module according to any one of claims 1 to 3 is arranged between the cell and the back plate.

5. A manufacturing apparatus of the encapsulating film for the solar photovoltaic module according to any one of claims 1 to 3, characterized by comprising two or more extrusion mechanisms, a first forming roll (3) and a second forming roll (4), wherein the first forming roll (3) and the second forming roll (4) are arranged side by side and tangent, and the first forming roll (3) and the second forming roll (4) are used for extruding the encapsulating film extruded from the extrusion mechanisms;

the extruding mechanism comprises a first extruding mechanism (5) and a second extruding mechanism (6), the first extruding mechanism (5) is used for extruding the first packaging material, and the second extruding mechanism (6) is used for extruding the second packaging material; the first extrusion mechanism (5) comprises a first extrusion part (51), a plurality of first extrusion ports (52) are arranged at the lower end of the first extrusion part (51), and the first extrusion ports (52) are arranged on a first horizontal plane; the second extrusion mechanism (6) comprises a second extrusion part (61), a plurality of second extrusion ports (62) are arranged at the lower end of the second extrusion part (61), the second extrusion ports (62) are arranged on a second horizontal plane, the first extrusion ports (52) and the second extrusion ports (62) face the first forming roller (3), and the first horizontal plane is higher than the second horizontal plane; the distance between two adjacent first extrusion outlets (52) is larger than the distance between two adjacent second extrusion outlets (62).

6. The manufacturing apparatus of the encapsulating film for the solar photovoltaic module according to claim 5, wherein the plurality of first extrusion ports (52) are uniformly arranged along a length direction of the first extruded part (51).

7. The manufacturing apparatus of the encapsulating film for a solar photovoltaic module according to claim 6, wherein a distance between adjacent two first extrusion ports (52) is set to be in a range of 0 to 20 mm.

8. The manufacturing apparatus of the encapsulating film for the solar photovoltaic module according to claim 5, wherein the plurality of second extrusion ports (62) are uniformly arranged along a length direction of the second extrusion portion (61).

9. The apparatus for preparing an encapsulating film for a solar photovoltaic module according to claim 8, wherein a distance between two adjacent second extrusion ports (62) is set to be in a range of 100 and 300 mm.

10. The apparatus for manufacturing an encapsulating film for a solar photovoltaic module according to claim 5, wherein the first encapsulating material is a transparent encapsulating material; the second packaging material is a color packaging material, the color packaging material comprises a filler, and the filler comprises titanium dioxide, titanium black or composite titanium yellow.