CN216563155U

CN216563155U - Photovoltaic module

Info

Publication number: CN216563155U
Application number: CN202123323384.5U
Authority: CN
Inventors: 崔标; 唐柯; 陈洪野; 吴小平
Original assignee: Cybrid Technologies Inc
Current assignee: Cybrid Technologies Inc
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-17
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to a photovoltaic module which comprises a front plate, a battery and a rear plate which are arranged in a stacked mode, wherein the front plate is connected with the battery through an adhesive film, and the battery is connected with the rear plate through an adhesive film; the front plate comprises an anti-UV protective layer, an anti-UV first adhesive layer, an impact-proof base layer, a second adhesive layer and at least one reinforcing layer which are arranged in a laminated manner from outside to inside; the back plate comprises a first supporting layer, a third bonding layer, a metal honeycomb core layer, a fourth bonding layer and a second supporting layer which are arranged in a stacked mode. Compared with the traditional photovoltaic module containing glass, the photovoltaic module provided by the utility model has the characteristic of light weight, and can be mechanically fixed and installed.

Description

Photovoltaic module

Technical Field

The utility model relates to the technical field of solar modules, in particular to a photovoltaic module.

Background

The mass of the conventional solar module is larger, about 15Kg/m, because the conventional solar module has a rigidized glass layer and an aluminum alloy frame²On the left and right, this severely limits the photovoltaic module to being supportedUse on a less heavy roof.

CN109192801A discloses a lightweight photovoltaic module and a preparation method thereof, wherein the lightweight photovoltaic module disclosed herein comprises a transparent front film, a reinforcing plate, a first adhesive film layer, a solar cell, a second adhesive film layer, a first substrate layer, a third adhesive film layer, a honeycomb core layer, a fourth adhesive film layer and a second substrate layer, which are sequentially stacked. The light photovoltaic module disclosed by the method adopts a one-step laminating process, a back plate is not required to be manufactured in the manufacturing process, and the module can be formed by laminating for 4-30min under the conditions of the laminating temperature of 120-180 ℃ and the pressure of 30-100 kpa and then cooling. The photovoltaic module manufactured by the method reduces the glass layer, realizes power generation and greatly reduces the weight of the module, and the one-step manufacturing process reduces the process steps, saves the production cost of the module and reduces the possible adverse phenomenon of the back plate in the laminating process.

CN207082538U discloses a lightweight photovoltaic module, which comprises a laminated board, wherein the laminated board comprises front glass, a first EVA (ethylene vinyl acetate) adhesive film, a solar cell, a second EVA adhesive film and a back board layer which are sequentially arranged from top to bottom, and the peripheries of the first EVA adhesive film, the solar cell and the second EVA adhesive film are sealed through glue; wherein: the back sheet layer comprises a first light transmitting layer and a second light transmitting layer; the first light-transmitting layer is positioned below the second EVA adhesive film and is made of a light-transmitting material; the second light-transmitting layer is located below the first light-transmitting layer and is made of a light-transmitting material containing a water-blocking layer. The light-weight photovoltaic module disclosed by the light-weight photovoltaic module replaces the back plate glass in the prior art by arranging the back plate layer comprising the first euphotic layer and the second euphotic layer, and the weight is reduced while power generation is realized.

Lightweight components have been developed in the industry today, but they are not easy to install and cannot be mechanically fixed. Therefore, it is important to develop a photovoltaic module that is light and mechanically fixed.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the utility model aims to provide a photovoltaic module which has the characteristic of light weight and can be mechanically fixed and installed.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a photovoltaic module, which comprises a front plate, a battery and a rear plate which are arranged in a stacked mode, wherein the front plate and the battery are connected through adhesive films, and the battery and the rear plate are connected through adhesive films;

the front plate comprises an anti-UV protective layer, an anti-UV first bonding layer, an impact-proof base layer, a second bonding layer and at least one reinforcing layer which are arranged in a laminated manner from outside to inside;

the back plate comprises a first supporting layer, a third bonding layer, a metal honeycomb core layer, a fourth bonding layer and a second supporting layer which are stacked.

Preferably, the thickness of the front plate is 160-1000 μm, such as 200 μm, 300 μm, 400 μm, 500 μm, 600 μm, 700 μm, 800 μm, 900 μm, etc.

Preferably, the thickness of the rear plate is 2-50mm, such as 5mm, 10mm, 20mm, 30mm, 40mm, etc.

Preferably, the thickness of the protective layer is 10-100 μm, such as 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, and the like.

Preferably, the thickness of the impact-protecting base layer is ≧ 160 μm, such as 170 μm, 180 μm, 185 μm, 190 μm, or the like.

Preferably, the grammage of the reinforcement layer is 50-300g, such as 100g, 150g, 200g, 250g, etc.

Preferably, the thickness of the metal honeycomb core layer is 2-50 μm, such as 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, and the like.

Preferably, the thickness of the first support layer and the second support layer is each independently 100-400 μm, such as 150 μm, 200 μm, 250 μm, 300 μm, 350 μm, and the like.

Preferably, the battery is any one of PERC, HJT, Topcon, IBC, HBC or perovskite battery;

the battery is connected with a bus bar, and the bus bar extends out of the photovoltaic module through the rear plate.

Preferably, the base layer is an insulating base layer;

the back panel further includes a reinforcement layer.

In the front plate, the protective layer is made of a fluorine-containing material, such as polyvinylidene fluoride or ethylene-tetrafluoroethylene copolymer.

Illustratively, the adhesive film is an ultraviolet-resistant adhesive film.

Illustratively, the material of the UV-resistant first adhesive layer, the UV-resistant second adhesive layer, the UV-resistant third adhesive layer and the UV-resistant fourth adhesive layer is an ultraviolet-resistant adhesive layer.

Illustratively, the material of the substrate layer is any one of polycarbonate, polyethylene terephthalate or fluorine-containing material.

Illustratively, the enhancement layers include a first enhancement layer and a second enhancement layer, the second enhancement layer being closer to the battery than the first enhancement layer;

the first reinforcing layer is made of glass fiber or polycarbonate;

the second enhancement layer is made of a surface-strengthened coating or a fluorine-containing material.

Illustratively, the supporting plate is made of a plate material, and the material of the supporting plate is any one of polyethylene terephthalate, polycarbonate or polypropylene.

Illustratively, the method for preparing the battery pack comprises the following steps:

the anti-UV protective layer, the anti-UV first bonding layer, the anti-impact base layer, the second bonding layer and the reinforcing layer are rolled and compounded into a front plate at the process temperature of 90-110 ℃, the first reinforcing layer, the third bonding layer, the metal honeycomb core layer, the fourth bonding layer and the second reinforcing layer are laminated for 4-30min at the temperature of 110-130 ℃ and under the pressure of 30-100 kpa, and then cooled into a honeycomb plate, and the front plate, the bonding layer, the battery string, the bonding layer and the honeycomb plate are laminated for 4-30min at the temperature of 130-150 ℃ and under the pressure of 30-100 kpa, and then cooled into the lightweight component.

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

compared with the traditional photovoltaic module containing glass, the photovoltaic module provided by the utility model has the characteristic of light weight, and can be mechanically fixed and installed.

Drawings

FIG. 1 is a schematic structural view of a photovoltaic module according to example 1;

FIG. 2 is a schematic structural view of a photovoltaic module according to example 2;

among them, 11-a UV-resistant protective layer; 12-a first UV resistant adhesive layer; 13-a substrate layer to protect against impacts; 14-a second adhesive layer; 15-a first enhancement layer; 16-a second enhancement layer; 21-a battery string; 22-a bus bar; 31-a third enhancement layer; 32-a fifth adhesive layer; 33-a second support layer; 34-a fourth adhesive layer; 35-a metal honeycomb core layer; 36-a third adhesive layer; 37-a first support layer; 41-a first adhesive film; 42-second adhesive film.

Detailed Description

For the purpose of facilitating an understanding of the present invention, the present invention will now be described by way of examples. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.

Illustratively, the thickness of the front plate is 160-.

Illustratively, the thickness of the back plate is 2-50 mm.

Illustratively, the protective layer has a thickness of 10-100 μm.

Illustratively, the thickness of the impact-protective base layer is ≧ 160 μm.

Illustratively, the grammage of the reinforcement layer is 50-300 g.

Illustratively, the thickness of the metal honeycomb core layer is 2-50 mm.

Illustratively, the thickness of the first support layer and the second support layer are each independently 100 and 400 μm.

Illustratively, the cell is any one of PERC, HJT, Topcon, IBC, HBC, or perovskite cell;

Illustratively, the base layer is an insulating base layer;

the back panel further includes a reinforcement layer.

The back panel further includes a reinforcement layer.

Example 1

The embodiment provides a photovoltaic module, the structural schematic diagram of which is shown in fig. 1, the photovoltaic module includes a front plate, a first adhesive film 41, a battery, a second adhesive film 42 and a back plate which are stacked;

the front plate comprises a UV-resistant protective layer 11, a UV-resistant first bonding layer 12, an impact-resistant base layer 13, a second bonding layer 14, a first reinforcing layer 15 and a second reinforcing layer 16 which are arranged in a laminated manner from outside to inside;

protective layer: polyvinylidene fluoride with the thickness of 25 mu m, purchased from Gao Zheng and the mark of HSMx-T;

first adhesive layer: a polyethylene octene co-elastomer having a thickness of 200 μm available from saiwu under the designation C11;

base layer: polyethylene terephthalate, 175 μm thick, available from saiwu under the designation 455 AR;

a second adhesive layer: a polyethylene octene co-elastomer having a thickness of 200 μm available from saiwu under the designation T11;

a first enhancement layer: glass fiber with the gram weight of 100g is purchased from match and the brand number is sw-001;

a second enhancement layer: a surface-enhancing coating;

the first adhesive film is made of ethylene-vinyl acetate, has the gram weight of 470g, is purchased from saiwu and has the brand number of T22H;

the battery includes a battery string 21 to which a bus bar 22 is connected;

the second adhesive film is made of ethylene-vinyl acetate, has the gram weight of 470g, is purchased from saiwu and has the brand number of T22H;

the back plate comprises a first support layer 37, a third adhesive layer 36, a metal honeycomb core layer 35, a fourth adhesive layer 34, a second support layer 33, a fifth adhesive layer 32 and a third reinforcing layer 31.

A first support layer: an aluminum plate with the thickness of 0.35 mm;

a third adhesive layer: ethylene-tetrafluoroethylene copolymer, having a gram weight of 200g, available from saiwu under the designation T11;

a metal honeycomb core layer: the groove is of a groove type, the thickness is 10, the groove is purchased from match, and the mark is 6063;

fourth adhesive layer: polyethylene octene co-elastomer, gram weight 200g, saiwu, brand TII;

a second support layer: 1500V backsheet, available from saiwu under the designation 455 AR;

fifth adhesive layer: ethylene-tetrafluoroethylene copolymer, having a gram weight of 200g, available from saiwu under the trade designation; t11

A third enhancement layer: glass fiber, 160g in gram weight, available from Saiwu under the designation SW-01.

The preparation method of the photovoltaic module comprises the following steps:

the anti-UV protective layer, the anti-UV first adhesive layer, the anti-impact base layer, the second adhesive layer and the reinforcing layer are combined into the front plate in a rolling mode at the process temperature of 100 ℃, the first reinforcing layer, the third adhesive layer, the metal honeycomb core layer, the fourth adhesive layer, the second supporting layer, the fifth adhesive layer and the third reinforcing layer are combined into the honeycomb plate in a rolling mode at the process temperature of 120 ℃ under the pressure of 50kpa for 15min, the honeycomb plate is cooled after lamination, the front plate, the adhesive layer, the battery string, the adhesive layer and the honeycomb plate are cooled into the honeycomb plate at the process temperature of 140 ℃ under the pressure of 60kpa for 20min, and the lightweight assembly is cooled.

Example 2

The present embodiment provides a photovoltaic module, whose schematic structural diagram is shown in fig. 2, the photovoltaic module includes a front plate, a first adhesive film 41, a battery, a second adhesive film 42, and a back plate, which are stacked together;

the front plate comprises a UV-resistant protective layer 11, a UV-resistant first bonding layer 12, an impact-resistant base layer 13, a second bonding layer 14 and a first reinforcing layer 15 which are arranged in a laminated manner from outside to inside;

a second enhancement layer: a surface-enhancing coating;

the battery includes a battery string 21 to which a bus bar 22 is connected;

the second adhesive film is made of ethylene-vinyl acetate, has the gram weight of 470g, is purchased from saiwu and has the brand number of T22H; (ii) a

The back plate comprises a first support layer 37, a third adhesive layer 36, a metal honeycomb core layer 35, a fourth adhesive layer 34 and a second support layer 33.

A first support layer: the thickness of the PET plate containing the glass fiber is 0.25 mm;

a third adhesive layer: ethylene-tetrafluoroethylene copolymer, having a gram weight of 200g, available from saiwu under the designation TII;

a metal honeycomb core layer: the groove is a groove with the thickness of 10mm, purchased from match and the mark number of 6063;

fourth adhesive layer: a polyethylene octene co-elastomer having a gram weight of 200g available from saiwu under the designation T11;

a second support layer: polycarbonate, available from saiwu under the designation 001;

the anti-UV protective layer, the anti-UV first bonding layer, the base layer for protecting impact, the second bonding layer and the reinforcing layer are combined into a front plate by rolling at the process temperature of 100 ℃; laminating the PET plate containing the glass fibers, the third bonding layer, the metal honeycomb core layer, the fourth bonding layer and the second support layer at the temperature of 120 ℃ under the pressure of 50kpa for 20min, and cooling to form a honeycomb plate; and laminating the front plate, the bonding layer, the battery string, the bonding layer and the honeycomb plate at 140 ℃ under the pressure of 50kpa for 20min, and cooling to form the light-weight component.

Performance testing

The photovoltaic modules described in examples 1 to 2 were subjected to quality testing, and the test results are summarized in table 1.

TABLE 1

	Quality of
		Example 1	5.6g/m²
Example 2	5.8g/m²

The photovoltaic module replaces the traditional glass module, the quality is obviously reduced (the density range of the glass is different, but the quality after assembly is obviously higher than that of the module), the photovoltaic module has the characteristic of light weight, and the photovoltaic module is easy to install.

The applicant states that the present invention is illustrated in detail by the above examples, but the present invention is not limited to the above detailed methods, i.e. it is not meant that the present invention must rely on the above detailed methods for its implementation. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.

Claims

1. A photovoltaic module is characterized by comprising a front plate, a battery and a rear plate which are arranged in a stacked mode, wherein the front plate and the battery and the rear plate are connected through adhesive films;

2. The photovoltaic module of claim 1, wherein the thickness of the front plate is 160-1000 μm.

3. The photovoltaic module of claim 1, wherein the thickness of the back plate is 2-50 mm.

4. A photovoltaic module according to claim 1 or 2, characterized in that the thickness of the protective layer is 10-100 μm.

5. The photovoltaic module according to claim 1 or 2, characterized in that the thickness of the impact-protecting substrate layer is not less than 160 μm.

6. The photovoltaic module of claim 1 or 2, wherein the grammage of the reinforcement layer is 50-300 g.

7. The photovoltaic module of claim 1 or 3 wherein the metal honeycomb core layer has a thickness of 2-50 mm.

8. The photovoltaic module of claim 1 or 3, wherein the thickness of the first and second support layers is independently 100-400 μm.

9. The photovoltaic module of claim 1, wherein the cell is any one of a PERC, HJT, Topcon, IBC, HBC, or perovskite cell;

10. The photovoltaic module of claim 1, wherein the substrate layer is an insulating substrate layer;

the back panel further includes a reinforcement layer.