CN218710099U

CN218710099U - Novel adhesive film for packaging photovoltaic module

Info

Publication number: CN218710099U
Application number: CN202223179027.0U
Authority: CN
Inventors: 魏虎; 周俊
Original assignee: Changshu Tuopu Photovoltaic Material Co ltd
Current assignee: Changshu Tuopu Photovoltaic Material Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-24
Anticipated expiration: 2032-11-29

Abstract

The utility model provides a novel glued membrane is used in photovoltaic module encapsulation relates to photovoltaic module encapsulation glued membrane technical field. Including first EVA glued membrane layer, ultraviolet resistance layer, second EVA glued membrane layer, first EVA glued membrane layer and second EVA glued membrane layer set up the both sides on ultraviolet resistance layer respectively, one side that ultraviolet resistance layer was kept away from to first EVA glued membrane layer and second EVA glued membrane layer all is equipped with the air discharge duct, one side that ultraviolet resistance layer was kept away from to first EVA glued membrane layer and second EVA glued membrane layer all is equipped with anti-skidding bump, anti-skidding bump is rectangular matrix and distributes, one side that ultraviolet resistance layer was kept away from to first EVA glued membrane layer is equipped with first type membrane, one side that ultraviolet resistance layer was kept away from to second EVA glued membrane layer is equipped with the second from type membrane. The utility model discloses a setting of first EVA glued membrane layer, uvioresistant layer, second EVA glued membrane layer, easy gleitbretter when having solved current glued membrane rolling easily, laminating, the condition of latent splitting.

Description

Novel adhesive film for packaging photovoltaic module

Technical Field

The utility model provides a novel glued membrane is used in photovoltaic module encapsulation relates to photovoltaic module encapsulation glued membrane technical field.

Background

Solar energy has been widely used in various fields as a mainstream clean energy at present. The utilization of solar energy mainly depends on a photovoltaic cell as a carrier, and the photovoltaic cell is also called a solar photovoltaic cell and can directly convert solar energy into electric energy. The double-glass photovoltaic cell mainly comprises a frame, glass, bus bar outgoing lines, a solar cell panel and packaging materials, and the photovoltaic cell is assembled through a laminating process, wherein the back glass of the packaging materials is respectively bonded and sealed on two sides of the solar cell panel in the laminating process, so that the reduction of air and moisture contact of the solar cell panel is facilitated, and the solar cell panel is protected.

At present, an encapsulating adhesive film used by a photovoltaic module is mainly made of EVA (ethylene vinyl acetate) material with high viscosity, the EVA material is generally packaged in a roll form, the length of each roll of EVA after being spread is usually 100-300 meters, and the layers of the rolled EVA are bonded due to weight, particularly when the EVA is stored at high temperature, the bonding is easy to occur, so that the EVA roll is not smooth when being unfolded, and the operation time is increased; in addition, during lamination, slip sheets and hidden cracks are easy to occur between the adhesive film and the battery pieces, and therefore a novel adhesive film for packaging the photovoltaic module is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a novel glued membrane is used in photovoltaic module encapsulation through the setting of first EVA glued membrane layer, uvioresistant layer, second EVA glued membrane layer, easy gleitbretter when having solved current glued membrane rolling easily, laminating, the latent condition of splitting.

The utility model provides a novel glued membrane is used in photovoltaic module encapsulation, including first EVA glued membrane layer, anti ultraviolet layer, second EVA glued membrane layer, first EVA glued membrane layer and second EVA glued membrane layer set up the both sides on anti ultraviolet layer respectively, one side that anti ultraviolet layer was kept away from to first EVA glued membrane layer and second EVA glued membrane layer all is equipped with the air discharge duct, one side that anti ultraviolet layer was kept away from to first EVA glued membrane layer and second EVA glued membrane layer all is equipped with anti-skidding bump, anti-skidding bump is rectangular matrix distribution, one side that anti ultraviolet layer was kept away from to first EVA glued membrane layer is equipped with first type membrane, one side that anti ultraviolet layer was kept away from to second EVA glued membrane layer is equipped with the second and leaves type membrane.

Preferably, the anti-ultraviolet layer comprises a high-temperature-resistant glue layer, and an ultraviolet absorbent is filled in the high-temperature-resistant glue layer.

Preferably, the exhaust grooves are in a zigzag shape.

Preferably, the cross section of the exhaust groove is trapezoidal.

Preferably, the first type membrane symmetry sets up the both sides at first EVA glued membrane layer, it is first to be equipped with the fixed glue point from between type membrane and the first EVA glued membrane layer.

Preferably, the width of the first release film is equal to half of the width of the first EVA film layer.

Preferably, the second is from the both sides that the type membrane symmetry set up at second EVA glued membrane layer, the second is equipped with fixed glue point from between type membrane and the second EVA glued membrane layer.

Preferably, the width of the second release film is equal to half of the width of the second EVA film layer.

The utility model has the advantages that:

the utility model provides a novel glued membrane is used in photovoltaic module encapsulation, through the setting of first EVA glued membrane layer and second EVA glued membrane layer, promote the holistic cohesive force of glued membrane, setting through anti ultraviolet layer, play anti ultraviolet, the effect of ageing resistance, setting through the air discharge duct, play carminative effect when laminating, exhaust efficiency when can effectively promote the subassembly lamination, reduce the lamination time, setting through anti-skidding bump, can increase the friction between glued membrane and the battery piece on the one hand, prevent to take place the gleitbretter when laminating, on the other hand, when the glued membrane rolling, the adhesion between layer can effectively be avoided to anti-skidding bump, through first setting from type membrane and second from type membrane, when the glued membrane rolling, can the separation between the glued membrane, further avoid the glued membrane to take place to glue even.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a novel adhesive film for packaging a photovoltaic module according to the present invention.

Fig. 2 is the utility model relates to a novel photovoltaic module encapsulates anti ultraviolet layer structure schematic diagram with glued membrane.

Fig. 3 is a schematic structural view of the second embodiment of the adhesive film for packaging a photovoltaic module according to the present invention.

(1, a first EVA adhesive film layer; 2, an ultraviolet-resistant layer; 21, an ultraviolet absorbent; 22, a high-temperature-resistant adhesive layer; 3, a second EVA adhesive film layer; 4, an exhaust groove; 5, anti-skidding convex points; 6, a second release film; 7, a first release film; 8, fixed adhesive points).

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example one

Referring to fig. 1 and 2, the utility model provides a novel glued membrane is used in photovoltaic module encapsulation, including first EVA glued membrane layer 1, anti ultraviolet layer 2, second EVA glued membrane layer 3, first EVA glued membrane layer 1 and second EVA glued membrane layer 3 set up respectively in the both sides on anti ultraviolet layer 2, one side that anti ultraviolet layer 2 was kept away from to first EVA glued membrane layer 1 and second EVA glued membrane layer 3 all is equipped with air discharge duct 4, and air discharge duct 4 plays carminative effect when laminating, can effectively promote the exhaust efficiency when the subassembly is laminated, reduces the lamination time, one side that anti ultraviolet layer 2 was kept away from to first EVA glued membrane layer 1 and second EVA glued membrane layer 3 all is equipped with anti-skidding bump 5, anti-skidding bump 5 is rectangular matrix distribution, specifically, anti-skidding bump 5 can increase the friction between glued membrane and the battery piece on the one hand, prevents to take place the gleitbretter when laminating, on the other hand, when the glued membrane rolling, anti-skidding bump 5 can effectively avoid the adhesion between the layer.

Further, in this embodiment, the ultraviolet-resistant layer 2 includes a high-temperature-resistant adhesive layer 22, and the ultraviolet absorber 21 is filled in the high-temperature-resistant adhesive layer 22. Specifically, the ultraviolet absorber 21 can absorb ultraviolet rays in sunlight and a fluorescent light source, and plays a role in preventing ultraviolet rays and aging.

Further, in the present embodiment, the exhaust groove 4 is a zigzag line, and the cross section of the exhaust groove 4 is a trapezoid. Specifically, compared with the linear exhaust groove 4 and the zigzag exhaust groove 4, when the adhesive film is cut, if the cutting position is right at the exhaust groove 4, the linear exhaust groove 4 may cause the thickness of the cutting position to be smaller than that of the adhesive film on the whole, and the cutting position cannot be contacted with the battery piece during lamination, so that the edge of the battery piece is suspended, and therefore, the situation of hidden cracking is easily caused during lamination, and the zigzag exhaust groove 4 cannot be caused.

Based on the working principle of the novel adhesive film for packaging the photovoltaic module in the first embodiment: through the setting of first EVA glued membrane layer 1 and second EVA glued membrane layer 3, promote the holistic cohesive force of glued membrane, setting through anti ultraviolet layer 2, play the ultraviolet protection, the effect of ageing resistance, setting through air discharge duct 4, play carminative effect when laminating, exhaust efficiency when can effectively promoting the subassembly lamination, reduce the lamination time, setting through anti-skidding bump 5, can increase the friction between glued membrane and the battery piece on the one hand, prevent the gleitbretter that takes place when laminating, on the other hand, when the glued membrane rolling, adhesion between layer can effectively be avoided to anti-skidding bump 5.

Example two

Referring to fig. 3, the utility model provides a novel glued membrane is used in photovoltaic module encapsulation compares in embodiment one, and one side that ultraviolet resistance layer 2 was kept away from to first EVA glued membrane layer 1 in this embodiment is equipped with firstly from type membrane 7, firstly set up in the both sides of first EVA glued membrane layer 1 from type membrane 7 symmetry, firstly be equipped with fixed glue point 8 from between type membrane 7 and the first EVA glued membrane layer 1.

Further, in this embodiment, the width of the first release film 7 is equal to half of the width of the first EVA film layer 1.

Further, in this embodiment one side that anti ultraviolet layer 2 was kept away from to second EVA glued membrane layer 3 is equipped with the second from type membrane 6, the second sets up the both sides at second EVA glued membrane layer 3 from type membrane 6 symmetry, the second is equipped with fixed glue point 8 from between type membrane 6 and the second EVA glued membrane layer 3.

Further, in this embodiment, the width of the second release film 6 is equal to half of the width of the second EVA film layer 3.

In the embodiment, the first release film 7 and the second release film 6 are arranged, so that the adhesive films can be separated from each other when the adhesive films are rolled, the adhesive films are further prevented from being adhered to each other, the first release film 7 and the first EVA adhesive film layer 1, and the second release film 6 and the second EVA adhesive film layer 3 are connected through the fixed adhesive points 8, the fixed points are small, and the adhesive films are easy to tear; first from 7 symmetry settings in the both sides of first EVA glued membrane layer 1 of type membrane, and the first width of leaving type membrane 7 equals half of first EVA glued membrane layer 1 width, conveniently tears first from type membrane 7 to both sides, and the second is from type membrane 6 with the same reason, and this embodiment takes place the adhesion when being favorable to avoiding the glued membrane rolling.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a novel glued membrane is used in photovoltaic module encapsulation which characterized in that: including first EVA glued membrane layer (1), uvioresistant layer (2), second EVA glued membrane layer (3), first EVA glued membrane layer (1) and second EVA glued membrane layer (3) set up the both sides in uvioresistant layer (2) respectively, one side that uvioresistant layer (2) was kept away from in first EVA glued membrane layer (1) and second EVA glued membrane layer (3) all is equipped with air discharge duct (4), one side that uvioresistant layer (2) was kept away from in first EVA glued membrane layer (1) and second EVA glued membrane layer (3) all is equipped with anti-skidding bump (5), anti-skidding bump (5) are the rectangle matrix distribution, one side that uvioresistant layer (2) was kept away from in first EVA glued membrane layer (1) is equipped with first from type membrane (7), one side that uvioresistant layer (2) was kept away from in second EVA glued membrane layer (3) is equipped with the second from type membrane (6).

2. The novel adhesive film for packaging a photovoltaic module as claimed in claim 1, wherein: the ultraviolet-resistant layer (2) comprises a high-temperature-resistant adhesive layer (22), and an ultraviolet absorbent (21) is filled in the high-temperature-resistant adhesive layer (22).

3. The novel adhesive film for packaging a photovoltaic module as claimed in claim 1, wherein: the exhaust groove (4) is in a sawtooth line shape.

4. The novel adhesive film for packaging a photovoltaic module as claimed in claim 1, wherein: the section of the exhaust groove (4) is trapezoidal.

5. The novel adhesive film for packaging a photovoltaic module as claimed in claim 1, wherein: the first both sides that set up at first EVA glued membrane layer (1) from type membrane (7) symmetry, it is first from being equipped with between type membrane (7) and first EVA glued membrane layer (1) fixed glue point (8).

6. The novel adhesive film for packaging a photovoltaic module as claimed in claim 1, wherein: the width of the first release film (7) is equal to half of the width of the first EVA adhesive film layer (1).

7. The novel adhesive film for packaging a photovoltaic module as claimed in claim 1, wherein: the second is from the both sides that type membrane (6) symmetry set up at second EVA glued membrane layer (3), the second is equipped with between type membrane (6) and second EVA glued membrane layer (3) fixed glue point (8).

8. The novel adhesive film for packaging the photovoltaic module as claimed in claim 1, wherein: the width of the second release film (6) is equal to half of the width of the second EVA adhesive film layer (3).