CN214898473U

CN214898473U - Bendable crystal silicon assembly

Info

Publication number: CN214898473U
Application number: CN202121277188.6U
Authority: CN
Inventors: 曹建鸿
Original assignee: Hangzhou Taifu New Energy Co ltd
Current assignee: Hangzhou Taifu New Energy Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-11-26
Anticipated expiration: 2031-06-09

Abstract

The utility model belongs to the technical field of the crystal silicon subassembly, especially, be a flexible crystal silicon subassembly, including the battery piece, the lower terminal surface of battery piece bonds and has the conducting resin, and the conducting resin is through welding the welding of solder strip and constitute the battery string sequence together, and the photovoltaic EVA glued membrane has all been placed with lower terminal surface to the up end of battery string sequence, and first backplate and second backplate have been placed respectively to one side that the battery string sequence was kept away from on the surface of photovoltaic EVA glued membrane. The utility model discloses a set up the battery piece, the battery piece is made by the cutting of conventional single polycrystalline silicon piece, required electrical property parameter and subassembly size comprehensive decision when can be according to practical application, consequently, the application field of flexible product has been widened, weld the area through the setting, weld the battery cluster that the area is constituteed the battery piece, establish ties or parallelly connected together, the battery cluster sequence that this kind of mode obtained also is flexible product, it welds the area and makes flexible subassembly earlier to have solved conventional crystal silicon, the size that leads to flexible subassembly is limited, and breakable scheduling problem.

Description

Bendable crystal silicon assembly

Technical Field

The utility model relates to a crystal silicon subassembly technical field specifically is a flexible crystal silicon subassembly.

Background

The crystalline silicon solar cell has the characteristics of mature manufacturing technology, stable product performance, long service life and relatively high photoelectric conversion efficiency. At present, a traditional photovoltaic cell module mainly comprises a monocrystalline silicon solar cell and an amorphous silicon solar cell, and the influence of irradiation intensity and module temperature on the power generation capacity of the module is very important.

There are the following problems:

1. at present, a bendable photovoltaic crystal silicon assembly mainly uses a thin film battery, but the conversion efficiency of a mainstream product of the bendable photovoltaic crystal silicon assembly is low, the power generation requirement in a unit area cannot be met, and the application field is not wide enough.

2. After the conventional crystalline silicon welding strip assembly is made into a flexible assembly, the size of the flexible assembly is limited, and the problem of fragility cannot be solved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a flexible crystal silicon subassembly has solved the flexible product application of photovoltaic field of using thin film battery as the main and extensive inadequately with conventional crystal silicon weld take the subassembly can't solve its problem of making subassembly size flexibility, breakable problem that the flexible subassembly brought.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flexible crystal silicon subassembly, includes the battery piece, the lower terminal surface of battery piece bonds and has the conducting resin, the conducting resin is through welding the solder strip welding together constitution battery cluster sequence, the photovoltaic EVA glued membrane has all been placed with lower terminal surface to the up end of battery cluster sequence, first backplate and second backplate have been placed respectively to one side that the battery cluster sequence was kept away from on the surface of photovoltaic EVA glued membrane, battery cluster sequence, photovoltaic EVA glued membrane, first backplate and second backplate constitution lamination piece, the medial surface of lamination piece is provided with the mounting hole, the up end of lamination piece bonds and has the terminal box.

As an optimized technical scheme of the utility model, the battery piece is single polycrystalline silicon piece.

As an optimized technical scheme of the utility model, the quantity of photovoltaic EVA glued membrane is four groups.

As an optimized technical scheme of the utility model, the quantity of mounting hole is six groups.

Compared with the prior art, the utility model provides a flexible crystal silicon subassembly possesses following beneficial effect:

1. according to the bendable crystalline silicon assembly, the battery piece is formed by cutting a conventional single polycrystalline silicon wafer and can be comprehensively determined according to electrical performance parameters required in practical application and the size of the assembly, so that the application field of a flexible product is widened.

2. This flexible crystal silicon subassembly welds the area through the setting, welds the battery cluster that the area is constituteed the battery piece, and the series connection or parallelly connected be in the same place, and the battery cluster sequence that this kind of mode obtained also is flexible product, has solved conventional crystal silicon and has welded the area and make flexible assembly earlier, leads to the limited and breakable scheduling problem of size of flexible assembly.

Drawings

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

FIG. 2 is a schematic diagram of a battery string according to the present invention;

figure 3 is a schematic view of the bending of the laminate of the present invention.

In the figure: 1. a battery piece; 2. a conductive adhesive; 3. welding a strip; 4. a battery string sequence; 5. photovoltaic EVA adhesive film; 6. a first back plate; 7. a second back plate; 8. a laminate; 9. mounting holes; 10. a junction box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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 work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a flexible crystal silicon subassembly, including battery piece 1, battery piece 1's lower terminal surface bonds and has conducting resin 2, cell string sequence 4 is constituteed together through 3 welding of solder strip to conducting resin 2, photovoltaic EVA glued membrane 5 has all been placed with lower terminal surface to the up end of cell string sequence 4, first backplate 6 and second backplate 7 have been placed respectively to one side that cell string sequence 4 was kept away from on the surface of photovoltaic EVA glued membrane 5, cell string sequence 4, photovoltaic EVA glued membrane 5, lamination piece 8 is constituteed with second backplate 6 to first backplate 6, the medial surface of lamination piece 8 is provided with mounting hole 9, the up end of lamination piece 8 bonds and has terminal box 10.

In this embodiment, conducting resin 2 is convenient for constitute the battery cluster with a plurality of battery pieces 1, photovoltaic EVA glued membrane 5 is heated the solidification back, battery cluster sequence 4, first backplate 6 glues together with second backplate 7, and photovoltaic EVA glued membrane 5 has better adhesive force, durability and transparency, long-time use battery cluster sequence 4 also can not drop, first backplate 6 can be transparent backplate, also can be transparent materials such as ECTFE, second backplate 7 supports whole lamination spare 8 when using, terminal box 10 conducts the electric energy that battery piece 1 produced in the external circuit.

Specifically, the cell piece 1 is a single polycrystalline silicon piece.

In this embodiment, the cell pieces 1 can be obtained by equally dividing and cutting the conventional single-polycrystalline silicon wafer, and the number of the cut parts, i.e., the area size of the cell pieces 1, can be determined comprehensively according to the electrical performance parameters and the component size required in practical application.

Specifically, the number of the photovoltaic EVA adhesive films 5 is four.

In this embodiment, a set of photovoltaic EVA glue film 5 is a photovoltaic EVA glue film 5, and is used in the comparison prior art.

Specifically, the number of the mounting holes 9 is six.

In this embodiment, the mounting holes 9 facilitate mounting of the laminate 8 on the tempered glass.

The terminal box 10 in this embodiment is a known technology that has been disclosed to be widely used in daily life, and the type of the terminal box 10 is.

The utility model discloses a theory of operation and use flow: the method comprises the steps of cutting a conventional single-polycrystalline silicon wafer into equal parts to obtain battery pieces 1, wherein the cutting parts of the battery pieces 1, namely the area size of the battery pieces 1, can be comprehensively determined according to electrical performance parameters and component sizes required in practical application, so that the application field of flexible products is widened, the electrical parameters of the conventional single-polycrystalline silicon wafer and the cutting number of the battery pieces 1 are flexible and changeable, the battery pieces can be applied to curtain products with the size of-as small as below 1W and shed photovoltaic products with the size of 500W, then each battery piece 1 is bonded into a string through conductive adhesive 2, then the strings are connected in series or in parallel through welding strips 3, a battery string sequence 4 obtained in the mode can be bent, the problems that the flexible components are limited in size and fragile due to the fact that the conventional crystalline silicon welding strips 3 are firstly made into the flexible components are solved, two groups of photovoltaic EVA adhesive films 5 and a first back plate 6 are arranged above the battery string sequence 4, two groups of photovoltaic EVA adhesive films 5 and a second back plate 7 are placed below the battery string sequence 4, heating lamination is carried out after lamination is carried out to obtain a laminating piece 8, finally, a junction box 10 is adhered to the laminating piece 8, a mounting hole 9 is drilled, and then the edge of the laminating piece 8 is trimmed to finish manufacturing.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bendable crystal silicon assembly comprises a battery piece (1), and is characterized in that: the lower terminal surface of battery piece (1) bonds and has conducting resin (2), conducting resin (2) are welded through solder strip (3) and are constituteed battery cluster sequence (4) together, photovoltaic EVA glued membrane (5) have all been placed with lower terminal surface to the up end of battery cluster sequence (4), first backplate (6) and second backplate (7) have been placed respectively to one side that battery cluster sequence (4) was kept away from on the surface of photovoltaic EVA glued membrane (5), battery cluster sequence (4), photovoltaic EVA glued membrane (5), first backplate (6) and second backplate (7) constitution lamination piece (8), the medial surface of lamination piece (8) is provided with mounting hole (9), the up end of lamination piece (8) bonds and has terminal box (10).

2. A bendable crystal silicon assembly according to claim 1, wherein: the battery piece (1) is a single polycrystalline silicon piece.

3. A bendable crystal silicon assembly according to claim 1, wherein: the photovoltaic EVA adhesive films (5) are four groups in number.

4. A bendable crystal silicon assembly according to claim 1, wherein: the number of the mounting holes (9) is six.