CN218769561U

CN218769561U - Modular photovoltaic cell

Info

Publication number: CN218769561U
Application number: CN202222874795.1U
Authority: CN
Inventors: 宋启宏; 李宁秀; 陈七金
Original assignee: Xiamen Jumao New Energy Co ltd
Current assignee: Xiamen Jumao New Energy Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-28
Anticipated expiration: 2032-10-28

Abstract

The utility model provides a modular photovoltaic cell piece relates to photovoltaic cell piece technical field, including the battery piece body, battery piece body two sides all is equipped with the encapsulation board, the encapsulation board opposite face is equipped with unsmooth hot melt portion that corresponds respectively, it is fixed through supersound hot melt between the hot melt portion, the joint line of encapsulation board outward flange forms the sealing through the hot melt is sealed, and the sealing outer loop is around having the rubber framework, rubber framework both sides are equipped with equipment portion respectively, equipment portion surface is equipped with two-sided glue film, equipment portion bonds through two-sided glue film, the encapsulation board is TPT solar panel or TPE solar panel or BBF solar panel or in the EVA solar panel, then bond because triangle-shaped is the inclined plane through two-sided glue film between the battery piece subassembly, can avoid the rainwater to fall into in the joint line, and convenient and fast, do benefit to the operation.

Description

Modular photovoltaic cell

Technical Field

The utility model relates to a photovoltaic cell piece technical field, more specifically the utility model relates to a modular photovoltaic cell piece.

Background

The solar cell body is a device which directly or indirectly converts solar radiation energy into electric energy through photoelectric effect or photochemical effect by absorbing sunlight, and the main material of most solar cell bodies is silicon, so that compared with common batteries and recyclable rechargeable batteries, the solar cell is a green product with more energy conservation and environmental protection.

However, the conventional photovoltaic cell has the following disadvantages:

at present, a conventional crystalline silicon photovoltaic cell assembly adopts toughened glass, EVA, cell EVA and back plate laminating equipment and is matched with an aluminum alloy frame structure, the weight of the assembly is about 20kg, the application range of the assembly is limited by the weight of the assembly, the actual requirement cannot be met in a roof building with weak bearing capacity, cells with the characteristics of ultra-thinness, flexibility, light weight and the like are pushed out in the market along with the energy development requirement, the PVC back plate and an ETFE film are adopted to carry the cells, the weight can be reduced, the structural strength is weak, the cells are often installed in the roof building in an adhesive mode during assembly, the cells are only connected with the cells through electric wires, and the carrying structure is not connected, so when the modularized cells are laid, the whole cell unit has low seismic strength, and is easy to damage after being used in an outdoor environment for a long time.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: when the modularized cell is laid, the whole cell unit has low shock strength, and the modular photovoltaic cell is provided aiming at the problems in the prior art, and is specifically achieved by the following technical means:

a modular photovoltaic cell comprises a cell body;

packaging plates are arranged on two surfaces of the battery piece body, concave-convex corresponding hot melting parts are arranged on opposite surfaces of the packaging plates respectively, and the hot melting parts are fixed through ultrasonic hot melting;

the connecting gap at the outer edge of the packaging plate is sealed by hot melting to form a sealing part, a rubber frame body is wound outside the sealing part, assembling parts are respectively arranged at two sides of the rubber frame body, a double-sided adhesive layer is arranged on the surface of each assembling part, and the assembling parts are bonded by the double-sided adhesive layer;

through such design, two have twice hot melt between the packaging board and connect, can fully guarantee to connect the compactness, encapsulate the battery piece body in the packaging board, and regard as the braced frame structure through the rubber framework, compare traditional aluminum product frame more durable.

The preferred scheme is as follows: the packaging plate is one of a TPT (thermoplastic vulcanizate) solar panel, a BBF (BBF) solar panel or an EVA (ethylene vinyl acetate) solar panel;

and a glass layer is arranged on the surface of the packaging plate corresponding to the light receiving surface of the cell body.

The preferred scheme is as follows: the surface of the glass layer is plated with an antireflection film, and the antireflection film corresponds to the light receiving surface of the cell body.

Further: the bottom surface of the packaging plate is plated with a bottom film, and the bottom film is an ethylene-vinyl acetate copolymer film.

The preferred scheme is as follows: the rubber frame body and the sealing part are hot-melted into a whole, the connecting position of the rubber frame body and the packaging plate is concave, and the concave position is connected with the outer end of the packaging plate;

this design, improvement fixed effect.

The preferred scheme is as follows: the upper end and the lower end of the rubber frame body are respectively higher than the antireflection film and the bottom film by at least 1mm.

The preferred scheme is as follows: the assembling parts are respectively in a concave-convex shape, and the assembling parts are in a triangular shape;

this design does benefit to the equipment between the polylith battery piece.

The preferred scheme is as follows: the number of the hot melting parts is a plurality of, and the hot melting parts are all surrounded outside the cell body.

The preferred scheme is as follows: the glass layer and the antireflection film are transparent.

The utility model has the advantages that:

1. the battery piece body is packaged through the packaging plates, the packaging plates are in double hot-melt connection, the connection strength can be guaranteed, the connection gaps between the packaging plates are further sealed through the rubber frame body, the sealing state of the battery piece body is guaranteed, and the water vapor transmittance is reduced;

2. the rubber frame body is used as a frame structure of the battery piece assembly, so that the compressive strength of the whole structure of the battery piece assembly can be improved, when the battery piece assembly is laid on a building roof, the bonding glue is smeared into the groove, and is connected with the rubber frame body while being connected with the packaging plate, so that the connection area is enlarged, the installation effect is improved, and the battery piece assembly is prevented from being separated;

3. when laying battery piece subassembly, prepare polylith battery piece subassembly, and transversely arrange battery piece subassembly side by side, dock the unsmooth position in two equipment portions with horizontal migration's mode, then bond through two-sided glue film between the equipment portion, can improve and connect the compactness, and because triangle-shaped is the inclined plane, can avoid the rainwater to fall into in the joint gap, two sets of battery piece subassemblies are then connected and are accomplished, lay the installation with polylith battery piece subassembly according to this method, convenient and fast does benefit to the operation.

Drawings

Fig. 1 is an assembly diagram of the overall structure of the present invention;

FIG. 2 is a partial schematic view of the assembly of the packaging plate and the cell body structure of the present invention;

fig. 3 is a partial assembly view of the packaging plate, the battery cell body and the rubber frame structure of the present invention;

FIG. 4 is an assembly diagram of the rubber frame structure of the present invention;

fig. 5 is an explosion diagram of the structure of the present invention.

In the figure: the solar cell comprises a cell body (1), a packaging plate (2), a hot melting part (201), a sealing part (202), a rubber frame body (3), an assembling part (301), a double-sided adhesive layer (4), an antireflection film (5) and a bottom film (6).

Detailed Description

Referring to fig. 1 and 2, a modular photovoltaic cell includes a cell body 1 for generating solar power;

the two sides of the cell body 1 are respectively provided with the packaging plate 2, the packaging plate 2 is one of a TPT (thermoplastic vulcanizate) solar panel or a TPE (thermoplastic elastomer) solar panel or a BBF (BBF) solar panel or an EVA (ethylene vinyl acetate) solar panel, the cell body 1 is packaged by the packaging plate 2, the cell body 1 is protected and supported, the reliable insulativity and the aging resistance are realized, the service life of the cell body 1 is prolonged, and the surface of the packaging plate 2 is provided with a glass layer corresponding to the light receiving surface of the cell body 1, so that the light receiving of the cell body 1 is not influenced;

referring to fig. 2 and 5, opposite surfaces of the package plate 2 are respectively provided with a plurality of concave-convex corresponding hot melting portions 201, the hot melting portions 201 are fixed by ultrasonic hot melting, the hot melting portions 201 are disposed in a plurality and surround the outside of the battery piece body 1, when the package plate 2 is assembled, the hot melting portions 201 are butted with each other, the hot melting portions 201 are respectively concave-convex, the connecting depth is at least half of the thickness of the package plate 2, after the hot melting portions 201 are butted, the hot melting portions 201 are fixed by an ultrasonic hot melting process, so that the two package plates 2 are fixed, and preliminary assembly work is completed;

referring to fig. 2-4, after the packaging plates 2 are assembled preliminarily, the connecting gaps at the outer edges of the two packaging plates 2 are sealed by hot melting through a hot melting process to form a sealing part 202, at the moment, the two packaging plates 2 are completely sealed, the cell body 1 is packaged in the packaging plates 2, and the packaging plates 2 are connected by double hot melting, so that the connecting strength can be ensured;

when the packaging plate 2 is connected in a hot melting mode, the rubber frame body 3 surrounds the outer edge of the packaging plate 2, the connecting position of the rubber frame body 3 and the packaging plate 2 is concave, so that when the rubber frame body 3 surrounds the edge of the packaging plate 2, the concave position is connected to the outer end of the packaging plate 2, after the edge of the packaging plate 2 is cooled, the rubber frame body 3 and the sealing part 202 are integrally hot-melted, the rubber frame body 3 and the sealing part are fixed into a whole, a connecting gap between the packaging plates 2 is further sealed through the rubber frame body 3, the sealing state of the battery piece body 1 is guaranteed, and the water vapor transmittance is reduced;

the rubber frame body 3 is used as a frame structure of the battery piece assembly, the compressive strength of the whole structure of the battery piece assembly can be improved, the upper end and the lower end of the rubber frame body 3 are respectively higher than the antireflection film 5 and the bottom film 6 by at least 1mm, so that the bottom of the battery piece assembly and the inner side of the rubber frame body 3 are in a groove shape, when the battery piece assembly is laid on a building roof, the bonding glue is smeared into the groove, and is connected with the rubber frame body 3 while being connected with the packaging plate 2, so that the connection area is enlarged, the installation effect is improved, and the battery piece assembly is prevented from being separated;

when the rubber frame body 3 surrounds the outer side of the packaging plate 2, the rubber frame body can also play a role in protection, and the rubber frame body 3 has good toughness and has an anti-collision effect in the transportation process.

Referring to fig. 2 to 4, when laying a battery piece assembly, preparing a plurality of battery piece assemblies, arranging the battery piece assemblies in parallel, arranging assembling portions 301 on two sides of a rubber frame 3, wherein the assembling portions 301 are concave and convex respectively, when laying the battery piece assembly, for example, the left battery piece assembly is a first battery piece assembly a, then placing a second battery piece assembly b on the right side of the battery piece assembly a, the assembling portion 301 on the right side of the battery piece assembly a is concave, the left assembling portion 301 of the battery piece assembly b is convex, and the two assembling portions are corresponding to each other, a double-sided adhesive layer 4 is arranged on the surface of the assembling portion 301, a coating is arranged in an initial state of the double-sided adhesive layer 4, the battery piece assembly a and the battery piece assembly b are connected, the coating is uncovered, then the two coating are kept in the same horizontal state, the concave and convex positions in the two assembling portions 301 are connected with each other in a horizontal moving manner, the assembling portions 301 are bonded by the double-sided adhesive layer 4, the assembling portion 301 is triangular, and the connecting surface has two connecting surfaces, which can improve the connection tightness, and the rainwater can be prevented from falling into a connecting gap between two groups of the two battery piece assemblies, and the battery piece assemblies can be conveniently laid by the method.

The anti-reflection film 5 is plated on the surface of the glass layer, the anti-reflection film 5 corresponds to the light receiving surface of the cell body 1, the glass layer and the anti-reflection film 5 are transparent, and the light transmittance of the packaging plate 2 is improved through the anti-reflection film 5, so that the photoelectric conversion efficiency of the cell body 1 is improved;

the bottom surface of the packaging plate 2 is plated with a bottom film 6, and the bottom film 6 is an ethylene-vinyl acetate copolymer film, so that the packaging plate 2 is better in weather resistance, protected and prolonged in service life.

In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. The above description is only an example of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Various modifications and variations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the embodiments of the present specification should be included within the scope defined by the claims of the present specification.

Claims

1. A modular photovoltaic cell comprising a cell body (1), characterized in that:

packaging plates (2) are arranged on two surfaces of the cell body (1), concave-convex corresponding hot melting parts (201) are respectively arranged on opposite surfaces of the packaging plates (2), and the hot melting parts (201) are fixed through ultrasonic hot melting;

the sealing plate is characterized in that a sealing part (202) is formed by sealing a connecting gap at the outer edge of the packaging plate (2) through hot melting, a rubber frame body (3) is arranged around the sealing part (202), assembling parts (301) are respectively arranged on two sides of the rubber frame body (3), a double-faced adhesive layer (4) is arranged on the surface of each assembling part (301), and the assembling parts (301) are bonded through the double-faced adhesive layers (4).

2. The modular photovoltaic cell of claim 1, wherein: the packaging plate (2) is one of a TPT solar panel, a TPE solar panel, a BBF solar panel or an EVA solar panel;

the surface of the packaging plate (2) is provided with a glass layer corresponding to the light receiving surface of the cell body (1).

3. A modular photovoltaic cell as claimed in claim 2, characterized in that: the surface of the glass layer is plated with an antireflection film (5), and the antireflection film (5) corresponds to the light receiving surface of the cell body (1).

4. A modular photovoltaic cell as claimed in claim 3, characterized in that: the bottom surface of the packaging plate (2) is plated with a bottom film (6), and the bottom film (6) is an ethylene-vinyl acetate copolymer film.

5. The modular photovoltaic cell of claim 1, wherein: the rubber frame body (3) and the sealing part (202) are fused into a whole, the connecting position of the rubber frame body (3) and the packaging plate (2) is concave, and the concave position is jointed at the outer end of the packaging plate (2).

6. The modular photovoltaic cell of claim 4, wherein: the upper end and the lower end of the rubber frame body (3) are respectively higher than the antireflection film (5) and the bottom film (6) by at least 1mm.

7. The modular photovoltaic cell of claim 1, wherein: the assembling parts (301) are respectively in a concave-convex shape, and the assembling parts (301) are in a triangular shape.

8. The modular photovoltaic cell of claim 1, wherein: the number of the hot melting parts (201) is a plurality, and the hot melting parts are all surrounded outside the battery piece body (1).

9. A modular photovoltaic cell as claimed in claim 3, characterized in that: the glass layer and the antireflection film (5) are transparent.