CN210156388U

CN210156388U - Large-size solar cell suitable for laminated tile assembly

Info

Publication number: CN210156388U
Application number: CN201921428524.5U
Authority: CN
Inventors: 陈影; 张彩霞; 吴仕梁; 路忠林; 张凤鸣
Original assignee: Jiangsu Sunport Power Corp Ltd
Current assignee: Jiangsu Sunport Power Corp Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-03-17
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a jumbo size solar cell suitable for fold subassembly of tiles, this battery include battery body, openly are equipped with eight main bars that are parallel to each other at battery body, and the other cutting that all is equipped with the clearance and is used for battery body of every main bar, and battery body prolongs to divide into eight little battery pieces after the clearance cutting, the main bar adds thick design for the sectional type, the battery body back is equipped with the vertical electrode that is parallel to each other corresponding with main bar quantity and position, vertical electrode is the sectional type electrode, and its sectional number adds thick position with the segmentation of main bar correspondingly with the position, and the battery body back still is equipped with a plurality of and vertical electrode mutually perpendicular's horizontal electrode, horizontal electrode is eight segmentations and distributes, prolongs the clearance cutting back when battery body, all has one section horizontal electrode on every little battery piece. The utility model is suitable for the manufacture of the laminated tile assembly, and can improve the power of the assembly by more than 10 percent; the power of the battery piece can be improved by more than 50%; the manufacturing cost can be reduced.

Description

Large-size solar cell suitable for laminated tile assembly

Technical Field

The utility model relates to a jumbo size solar cell suitable for fold tile subassembly belongs to MWT solar module processing technology field.

Background

With the wider application of photovoltaic modules, the photovoltaic modules with high efficiency and low cost are always the targets of the technical development of the industry, and the industry mainly comprises silicon wafers, batteries and modules for cost reduction. In the direction of the silicon wafer, the size of the silicon wafer is changed, so that the production cost of the silicon wafer can be obviously reduced, the utilization rate of materials is improved, and the cost is the most important one in the cost of the photovoltaic module. There are 156.75 by 156.75mm, 158.75 by 158.75mm, 162 by 162mm, 166 by 166mm wafer sizes that have been used in the industry today, and it is only a matter of time to reach a size of 200 mm. At present, large-size batteries are also available in the market, which are perfectly suitable for the use of the shingle assembly.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: to the problem and not enough that exist among the prior art, the utility model provides a can perfectly be applicable to the jumbo size battery that the shingle assembly used.

The technical scheme is as follows: the utility model provides a jumbo size solar cell suitable for shingle assembly, includes the battery body, is equipped with eight main bars that are parallel to each other at the battery body front, and every main bar all is equipped with the cutting that the clearance is used for the battery body by the every main bar, and the battery body prolongs and divide into eight little battery pieces after the clearance cutting, the main bar is the sectional type and adds thick design, the battery body back is equipped with the vertical electrode that is parallel to each other corresponding with main bar quantity and position, vertical electrode is the sectional type electrode, and its sectional quantity and position are corresponding with the sectional type of main bar and add thick position, and the battery body back still is equipped with a plurality of horizontal electrodes with vertical electrode mutually perpendicular, horizontal electrode is eight segmentations and distributes, when the battery body prolongs the clearance cutting back, all has one section horizontal electrode on every little battery piece.

Preferably, the length of the thickened section of the main grid is 3-8mm, the width of the thickened section is 0.3-1mm, and the width of the other sections is 0.1-0.5 mm.

Preferably, the main grid is arranged inside the front surface of the cell body.

Preferably, the gap width is 0.2-1.2 mm.

Preferably, the length of each section of the longitudinal electrode is consistent with the length of the thickening section of the main grid, and the width of each section of the longitudinal electrode is 1-5 mm.

Preferably, the number of the transverse electrodes is four, the transverse electrodes are parallel to each other, the length of each transverse electrode is 8-15mm, and the width of each transverse electrode is 1-5 mm.

Preferably, the front surface of the battery body is also provided with a plurality of fine grids which are parallel to each other and vertical to the main grid, so that edge PN junction current can be collected conveniently.

Preferably, the fine grid is a sectional fine grid, and the sectional position of the fine grid is the position of the gap, so that the battery body can be conveniently cut.

Preferably, the number of the fine gates is 100-200.

Has the advantages that: the utility model is suitable for the manufacture of the laminated tile assembly, and can improve the power of the assembly by more than 10 percent; the utility model adopts a large-size design, the length of the traditional 158.75mm silicon wafer is expanded to 200mm, and the power of the battery piece can be improved by more than 50%; the utility model adopts the sectional design, which can save the slurry used by the front electrode and the back electrode and reduce the production cost of the battery piece; the utility model discloses independent design between each main grid, the appearance is pleasing to the eye, can independently become the piece after the cutting, convenient operation.

Drawings

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

FIG. 2 is a partial schematic view of the main grid of the present invention, wherein FIG. 8 is a main grid thickening section;

fig. 3 is a schematic view of the back structure of the present invention.

Detailed Description

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

As shown in fig. 1-3, a large-sized solar cell suitable for a laminated tile assembly comprises a cell body 1, eight mutually parallel main grids 2 are arranged on the front surface of the cell body 1, each main grid is of a sectional thickened design, the main grids 2 are all arranged in a cell, a gap 3 with the thickness of 0.2-1.2mm is arranged beside each main grid 2 and is not printed with a pattern, the main grids are used for cutting the cell body 1, the cell body 1 can be divided into eight independent small cells 4 after being cut along the gap 3, a main grid 2 is arranged on the front surface of each small cell 4, a longitudinal electrode 5 is arranged on the back surface of each small cell 4, and the main grids 2 and the longitudinal electrodes 5 correspond to each other on two surfaces of the small cells 4. The main grid 2 is designed to be thickened in a sectional mode, each section of the thickened section is 3-8mm long and 0.3-1mm wide, and other parts are connected through grid lines with the widths of 0.1-0.5. The back of the battery body 1 is provided with a plurality of electrodes which are divided into a longitudinal electrode 5 and a transverse electrode 6, eight longitudinal electrodes 5 are used for series connection between battery pieces, the electrodes are also designed in a sectional mode, the sectional spacing of the electrodes corresponds to the thickening sectional spacing of the main grid 2, the length of the electrodes is consistent with that of the thickening section of the main grid, and the width of the electrodes is 1-5 mm; the number of the transverse electrodes 6 is four, the transverse electrodes are parallel to each other and are designed in an eight-section mode, the length is 8-15mm, the width is 1-5mm, and after the battery body 1 is cut, a section of transverse electrode is arranged in each small battery piece 4 and used for connecting adjacent battery strings of the assembly. The front surface of the battery body 1 is also provided with 100-200 mutually parallel fine grids 7 which are mutually vertical to the main grid 2 so as to be convenient for collecting edge PN junction current, and the fine grids 7 are also designed in a sectional mode and are sectioned at the gap 3 so as to be convenient for cutting the battery body.

Compare with conventional battery, the utility model is suitable for a preparation shingle assembly makes things convenient for the battery cutting, and workable is fit for extensive batch production.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. A large size solar cell suitable for a shingle assembly, comprising: the battery comprises a battery body (1), eight mutually parallel main grids (2) are arranged on the front side of the battery body (1), a gap (3) is arranged beside each main grid (2) and used for cutting the battery body (1), the battery body (1) is divided into eight small battery pieces (4) after being cut along the gap (3), the main grids (2) are in sectional thickening design, longitudinal electrodes (5) which are parallel to each other and correspond to the main grids (2) in number and position are arranged on the back side of the battery body (1), the longitudinal electrodes (5) are sectional electrodes, the sectional number and position of the sectional electrodes correspond to the sectional thickening position of the main grids (2), a plurality of transverse electrodes (6) which are mutually perpendicular to the longitudinal electrodes (5) are also arranged on the back side of the battery body (1), the transverse electrodes (6) are distributed in eight sections, and when the battery body (1) is cut along the gap (3), each small battery piece (4) is provided with a section of transverse electrode (6).

2. A large size solar cell suitable for use in a shingle assembly as defined in claim 1 wherein: the thickened section of the main grid (2) is 3-8mm long and 0.3-1mm wide, and the width of the rest sections is 0.1-0.5 mm.

3. A large size solar cell suitable for use in a shingle assembly according to claim 1 or claim 2, wherein: the main grid (2) is arranged inside the front surface of the battery body (1).

4. A large size solar cell suitable for use in a shingle assembly as defined in claim 1 wherein: the width of the gap (3) is 0.2-1.2 mm.

5. A large size solar cell suitable for use in a shingle assembly as defined in claim 1 wherein: the length of each section of the longitudinal electrode (5) is consistent with the length of the thickened section of the main grid, and the width of each section of the longitudinal electrode is 1-5 mm.

6. A large size solar cell suitable for use in a shingle assembly as defined in claim 1 wherein: the number of the transverse electrodes (6) is four, the transverse electrodes (6) are parallel to each other, the length of each transverse electrode is 8-15mm, and the width of each transverse electrode is 1-5 mm.

7. A large size solar cell suitable for use in a shingle assembly as defined in claim 1 wherein: the front surface of the battery body (1) is also provided with a plurality of fine grids (7) which are parallel to each other and vertical to the main grid (2).

8. A large size solar cell suitable for use in a shingle assembly as defined in claim 7 wherein: the fine grid (7) is a sectional fine grid, and the sectional position of the fine grid is the position of the gap (3).

9. A large size solar cell suitable for use in a shingle assembly according to claim 7 or 8, wherein: the number of the fine gates (7) is 100-200.