CN211238269U

CN211238269U - Bendable battery photovoltaic module packaging structure

Info

Publication number: CN211238269U
Application number: CN201922431552.9U
Authority: CN
Inventors: 孙士洋; 欧阳子; 荒木建次; 张洋
Original assignee: Nanjing Huineng New Energy Technology Co ltd
Current assignee: Jiangsu Lingzhong New Energy Technology Co ltd; Ma'anshan Lingzhong New Energy Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-11
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a battery photovoltaic module packaging structure that can buckle, it includes: the battery pack comprises batteries, flexible plates, pack internal materials, hard plates and joints, wherein the pack internal materials are positioned on one side or two sides of the batteries, the flexible plates wrap the batteries and the pack internal materials together, the joints are arranged between adjacent batteries, the hard plates are wrapped in the flexible plates or positioned on the outer surfaces of the flexible plates, and the batteries and the pack internal materials are protected by using the flexible plates; the packaging material laid on the flexible board is a glue film layer, so that the adhesive effect is achieved, all layers of materials are bonded together, the flexible material is used for enabling the solar cell connection part to achieve the bending effect, and meanwhile, the solar cell can be protected by bending in the three-dimensional direction so as to be suitable for different scene requirements.

Description

Bendable battery photovoltaic module packaging structure

Technical Field

The utility model relates to a photovoltaic power generation field specifically is a battery photovoltaic module packaging structure that can buckle.

Background

The solar cell module consists of a high-efficiency single crystal/polycrystalline solar cell, low-iron super white suede toughened glass, a packaging material, a functional back plate, an interconnection bar, a bus bar, a junction box and an aluminum alloy frame. The service life can reach 15-25 years. The single solar cell cannot be directly used as a power supply. The power supply must be composed of several single batteries connected in series, parallel and tightly packed. The solar energy electric single crystal solar cell module is also called solar cell panel and photovoltaic module, is the core part of the solar energy power generation system, and is the most important part of the solar energy power generation system. The solar energy is converted into electric energy, or the electric energy is sent to a storage battery for storage, or a load is pushed to work. The quality and cost of the solar module will directly determine the quality and cost of the overall system.

The crystalline silicon module has the advantages of high efficiency and low price, but because the silicon wafer belongs to a rigid material which is hard and easy to crack, the general photovoltaic module needs to be protected by the rigid material. Due to the existence of rigid materials, the existing photovoltaic modules can only be made into a plane whole and cannot be bent, even if some flexible crystalline silicon photovoltaic modules are developed by some companies at present, the modules can only be bent once and cannot be repeatedly bent, the bending degree is limited, and only two-dimensional bending can be performed.

There are some patents describing foldable crystalline silicon photovoltaic modules, such as patent CN109768107A, which discloses a foldable photovoltaic module, wherein a bending gap is provided between the cells to make the module perform a certain bending property. In addition, as in patent CN 208874521U, different photovoltaic units are used, and the rotating member is set among the different photovoltaic units to achieve the purpose of bending. In the CN109768107A patent, with present flexible assembly not have essential difference, do not solve the problem that photovoltaic module can not buckle repeatedly and protect the battery piece, and among the CN 208874521U, photovoltaic module buckles through rotating the piece, need install the accessory additional after photovoltaic module accomplishes, the complex operation and flexibility ratio are not high, do not solve the problem that photovoltaic module can not buckle in the three-dimensional direction moreover. In addition, most photovoltaic cells need to be connected by using solder strips, and the solder strips are easy to break during the bending process of the assembly.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the not enough of prior art, the utility model provides a battery photovoltaic module packaging structure that can buckle, this structure uses flexible material to make the solar cell junction reach the effect of buckling, can carry out the crooked scene that is adapted to the difference of three-dimensional direction simultaneously and require to protect solar cell.

The technical scheme is as follows: in order to realize above purpose, a battery photovoltaic module packaging structure that can buckle, it includes: battery, flexible board, subassembly internal material, hardboard and junction, subassembly internal material be located one side or both sides of battery, the flexible board with battery and subassembly internal material cladding together, be equipped with the junction between the adjacent battery, the hardboard by the cladding in the flexible board or be located the surface of flexible board.

As a further preferred aspect of the present invention, the flexible board covers the battery and the module internal material together through the packaging material, the surface of which is provided with the hard board. The battery and the internal materials of the assembly are protected by using the flexible plate; the packaging material is an adhesive film layer, plays a role in bonding and bonds all layers of materials together; the conducting layer provides electrical connection for the battery piece, and series connection and parallel connection can be carried out according to different requirements.

As a further preferred aspect of the present invention, the flexible board is provided with a hard board on the upper surface or the lower surface or both surfaces thereof.

As a further preferred aspect of the present invention, the hard plate is fixed to the outer surface of the flexible plate by a packaging material, and the battery and the module internal material are coated together by the inner surface of the flexible plate.

As a further preferred aspect of the present invention, the coating is formed by confining the inner material of the module to the other side of the battery by using a sealing material or a spacing means.

As a further preferred aspect of the present invention, the material inside the module is an insulating layer or an insulating layer and a conductive layer which are close together.

As the utility model discloses a further preferred, positive negative pole when the battery lies in same one side time, the insulating layer on be equipped with take curved surface or plane or both combined through-hole or groove, through setting up through-hole or groove, can be as required with battery and conducting layer contact, can prevent again that the battery piece from forming the short circuit.

As a further preferred aspect of the present invention, the through holes or the grooves are outlets for leading out the positive electrode and the negative electrode of the battery, the positive electrode lead wire and the negative electrode lead wire of the battery are led out from the two through holes or the grooves, respectively, and then the electrode of the battery is connected to the conductive layer, which is used for leading out the electrode.

As a further preferred aspect of the present invention, the material inside the module is located opposite to the battery having a hard plate on the surface thereof.

As a further preferred aspect of the present invention, the battery is provided with a hard plate on the upper surface, the lower surface, or both the upper and lower surfaces.

As a further preferred aspect of the present invention, the number of the batteries fixed to the flexible board is at least 2.

As a further preference of the present invention, a joint is provided between adjacent batteries.

As a further preferred aspect of the present invention, the joint is a portion where the two flexible boards are adhered together by the packaging material.

As the utility model discloses a further preferred, the distance between junction and the battery is for being greater than 1mm, and this junction is used for buckling the battery for photovoltaic module can carry out three-dimensional the buckling.

As a further preferred aspect of the present invention, the flexible material of the front plate includes, but is not limited to, transparent PET, transparent ETFE, polymer materials such as nylon, chemical fiber cloth, and film; the hard board includes but is not limited to a PET material, an acrylic material, a glass fiber reinforced material and the like; the insulating layer includes, but is not limited to, materials having insulating properties such as a PET-based polymer material, a mask plate, and a PA-based polymer material.

Has the advantages that: a battery photovoltaic module packaging structure that can buckle, compare with prior art, have following advantage:

1. the battery piece is protected by using a hard material, so that the battery piece is not damaged;

2. flexible materials are used at the connection positions of the battery pieces, so that the relative bending among the battery piece assemblies can be ensured;

3. different degrees of bending are realized by setting different cell pitches, so that the flexibility is stronger;

4. be equipped with the junction between adjacent battery, can guarantee that photovoltaic module carries out three-dimensional direction's buckling, photovoltaic module's use occasion is more extensive.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic structural view of the present invention after assembly;

fig. 4 is a schematic view of the internal structure of another embodiment.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

As shown in fig. 1, the utility model discloses a battery photovoltaic module packaging structure that can buckle, it includes: the battery comprises a flexible board 1, a battery 2 with a hard board 6 on the surface, a packaging material 3, an insulating layer 4 and a conducting layer 5.

Example 1

Step one, laying transparent ETFE serving as a flexible board 1 on a plane, and then laying the transparent ETFE on all hard boards 6 by using an adhesive film layer as a packaging material 3, wherein the hard boards 6 are made of PET (polyethylene terephthalate) materials;

secondly, adhering the PET material on the surface on which the adhesive film layer is laid on the transparent ETFE serving as the flexible board 1 according to a preset position;

placing the batteries 2 above all the PET materials, respectively laying adhesive films on the transparent ETFE in four directions of 10mm outwards from the edges of the batteries 2 to serve as connecting parts 7, wherein the shape formed by the connecting parts 7 is the same as that of the batteries 2;

placing an insulating layer 4 and a conducting layer 5 above the battery 2 in sequence, wherein the insulating layer 4 and the conducting layer 5 are opposite to the battery 2, the insulating layer 4 is made of PET plastic, the conducting layer 5 is made of a copper plate, when the anode and the cathode of the battery 2 are positioned on the same side, through holes with curved surfaces are formed in the PET plastic, the anode lead wire and the cathode lead wire of the battery are respectively led out from the two through holes, then the electrode of the battery 2 is connected to the conducting layer 5, and the conducting layer 5 is used for leading out the electrode of the battery, so that the battery 2 can be contacted with the conducting layer 5 as required, and the short circuit of the battery 2 can be prevented;

fifthly, laying an adhesive film layer on the upper surface of the copper plate overlapped above the PET plastic;

and step six, covering a layer of transparent ETFE on the adhesive film layer to serve as the flexible plate 1, and adhering two layers of transparent ETFE together through a connecting part 7, as shown in fig. 2 and 3.

EXAMPLE 2

Firstly, laying chemical fiber cloth serving as a flexible board 1 on a plane, and then laying the chemical fiber cloth serving as a packaging material 3 on all hard boards 6, wherein the hard boards 6 are made of glass;

step two, adhering the glass on the side where the adhesive film layer is laid on the chemical fiber cloth serving as the flexible board 1 according to a preset position;

placing the batteries 2 above all the glass, respectively laying adhesive films on the chemical fiber cloth as connecting parts 7 in four directions of 5mm outward from the edges of the batteries 2, wherein the shape formed by the connecting parts 7 is the same as that of the batteries 2;

placing glass serving as a hard board 6 on the upper surface of the battery 2, placing an insulating layer 4 above the battery 2 correspondingly, wherein the position of the insulating layer 4 is opposite to that of the battery 2, and the insulating layer 4 is made of a mask;

and step five, taking the chemical fiber cloth as the flexible plate 1, and sticking the two layers of the chemical fiber cloth together through a joint 7, as shown in fig. 2 and 3.

EXAMPLE 3

Firstly, laying an adhesive film layer serving as a packaging material 3 on all hard plates 6, and then adhering the hard plates 6 to chemical fiber cloth serving as a flexible plate 1 according to a preset position, wherein the hard plates are made of an acrylic material;

turning the chemical fiber cloth laid with the acrylic material by 180 degrees and then horizontally placing the chemical fiber cloth;

placing a battery 2 above the chemical fiber cloth, wherein the position of the battery 2 corresponds to the position of all acrylic materials, adhesive films are respectively laid on the chemical fiber cloth as connecting parts 7 in four directions of 5mm outwards from the edge of the battery 2, and the shape formed by the connecting parts 7 is the same as that of the battery 2;

fourthly, placing an insulating layer 4 above the corresponding battery 2, wherein the position of the insulating layer 4 is opposite to that of the battery 2, and the material of the insulating layer 4 is a mask;

and step five, taking the chemical fiber cloth as the flexible plate 1, and sticking the two layers of the chemical fiber cloth together through a joint 7, as shown in fig. 4.

The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All changes and modifications that come within the spirit of the invention are desired to be protected.

Claims

1. A foldable cell photovoltaic module package structure, comprising: a battery (2), characterized in that: it still includes: flexible board (1), subassembly internal material, hardboard (6) and junction (7), subassembly internal material be located one side or both sides of battery (2), battery (2) and subassembly internal material cladding are in the same place in flexible board (1), are equipped with junction (7) between adjacent battery (2), hardboard (6) by the cladding in flexible board (1) or be located the surface of flexible board (1).

2. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the flexible plate (1) is used for coating the battery (2) with the hard plate (6) on the surface and the materials in the assembly together through the packaging materials (3).

3. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the upper surface or the lower surface or the upper and lower surfaces of the battery (2) are provided with hard plates (6).

4. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the hard board (6) is fixed on the outer surface of the flexible board (1) through the packaging material (3), and the inner surface of the flexible board (1) wraps the battery (2) and the materials in the assembly together.

5. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the upper surface or the lower surface or the upper and lower surfaces of the flexible plate (1) are provided with hard plates (6).

6. The bendable battery photovoltaic module packaging structure according to claim 2 or 4, wherein: the coating is to limit the internal material of the component on the other surface of the battery through a packaging material (3) or a limiting mode.

7. The bendable battery photovoltaic module packaging structure according to claim 2 or 4, wherein: the internal materials of the assembly are an insulating layer (4) or an insulating layer (4) and a conducting layer (5) which are close together.

8. The foldable battery photovoltaic module packaging structure of claim 7, wherein: when the positive and negative electrodes of the battery (2) are positioned on the same side, the insulating layer (4) is provided with a through hole or a groove with a curved surface or a plane or a combination of the curved surface and the plane.

9. The bendable battery photovoltaic module packaging structure according to claim 2 or 4, wherein: the positions of the internal material of the assembly, the hard board (6) and the battery (2) are opposite.

10. The foldable battery photovoltaic module packaging structure of claim 1, wherein: the connecting part (7) is a part for bonding the two layers of flexible boards (1) together through the packaging material (3).