CN213026159U

CN213026159U - Laser SE equipment revolving stage

Info

Publication number: CN213026159U
Application number: CN202021579028.2U
Authority: CN
Inventors: 郭敏杰; 苑虎; 杨香林; 辛玉龙; 曹愉凯; 庞勃; 荣伟; 张奇雄; 刘艳玲; 赵艳
Original assignee: Shanxi Luan Solar Energy Technology Co Ltd
Current assignee: Shanxi Luan Solar Energy Technology Co Ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-04-20
Anticipated expiration: 2030-08-03

Abstract

The utility model relates to a solar cell production field. The utility model provides a laser SE equipment revolving stage, includes laser main part seat and four station seats, and the station seat is a rectangle flat board, is connected through the connecting plate between every station seat and the laser main part seat, and the connecting plate becomes the flyswatter structure, and the connecting plate passes through horizontal adjusting device with the station seat and is connected. The utility model has the advantages that: adopt the utility model discloses afterwards, during the maintenance of equipment, carry out horizontal adjustment to the revolving stage station, reduce because the hard contact that horizontal deviation caused between battery piece and the revolving stage, reduce the piece rate. The fragment rate can be reduced by about 0.01%, and the loss of 120 battery pieces per day can be reduced by calculating 120 ten thousand pieces per day in terms of the capacity of 2GW single crystal batteries.

Description

Laser SE equipment revolving stage

Technical Field

The utility model relates to a solar cell production field.

Background

The laser SE is a process in the preparation process of a single crystal PERC cell in the solar photovoltaic field, heavy doping is carried out on the contact part of a metal grid line and a silicon wafer through laser, light doping is carried out on the position which is not between electrodes, and the alkali is strong in solubility in hot water at 80 ℃ due to the fact that NaOH and KOH are used in a large amount in the process, so that the structure can reduce the composition of a diffusion layer, the short-wave response of light is improved, and the conversion efficiency is stably improved by 0.2%.

At present, laser SE equipment used at home and abroad realizes preparation and transmission of process products through a turntable structure. The rotary table is integrally processed and is divided into four stations (southeast, northwest-ABCD). The equipment is through the spirit level adjustment revolving stage level before putting into operation, because the long-time processing of revolving stage and the hard contact wear of metal, slight deviation appears in four station levels that equipment appears after using half a year. The deviation has an influence on the fragment rate of the battery plate in the production process, the highest percentage of the deviation can reach 22% of the whole process segment, the fragment rate of the whole process segment reaches 0.05%, 60 fragments exist in 12 thousands of output of a single device, and the production profit is seriously influenced.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: how to avoid the horizontal deviation of station to cause the battery piece.

The utility model adopts the technical proposal that: the utility model provides a laser SE equipment revolving stage, includes laser main part seat (1) and four station seats (3), and station seat (3) are a rectangle flat board, are connected through connecting plate (2) between every station seat (3) and the laser main part seat (1), and connecting plate (2) become the fly swatter structure, and connecting plate (2) are connected through horizontal adjusting device (4) with station seat (3).

The horizontal adjusting device (4) comprises a stud (6), a nut (5) and a stud through hole, the stud (6) is integrally connected with the station seat (3) or welded, the connecting plate (2) is provided with a through hole corresponding to the stud (6), and the stud (6) is inserted into the stud through hole after the nut (5) is installed.

The horizontal adjusting devices (4) are four and the cross sections of the horizontal adjusting devices are connected into a rectangular structure.

The utility model has the advantages that: adopt the utility model discloses afterwards, during the maintenance of equipment, carry out horizontal adjustment to the revolving stage station, reduce because the hard contact that horizontal deviation caused between battery piece and the revolving stage, reduce the piece rate. The fragment rate can be reduced by about 0.01%, and the loss of 120 battery pieces per day can be reduced by calculating 120 ten thousand pieces per day in terms of the capacity of 2GW single crystal batteries.

Drawings

Fig. 1 is a schematic top view of the structure of the present invention;

fig. 2 is a schematic view of the bottom view of the structure of the present invention;

FIG. 3 is a schematic view of a leveling device;

FIG. 4 is a schematic view of the station base of the present invention;

the laser positioning device comprises a laser main body seat 1, a laser main body seat 2, a connecting plate 3, a station seat 4, a horizontal adjusting device 5, a nut 6 and a stud.

Detailed Description

The existing rotary table of the laser SE equipment is integrally formed and machined, four stations are on the same level, the main body seat 1 and the four station seats 3 are integrally connected together, and due to the fact that the rotary table is machined for a long time and metal is in hard contact abrasion, slight deviation occurs to the level of the four stations (on the station seats 3) after the equipment is used for half a year, and the fragment rate caused by the rotary table rises accordingly.

The utility model discloses reform transform the in-process, separate laser main part seat 1 and four station seats 3, various connecting holes on laser main part seat and the station seat 3 are unchangeable. Can cut off the adapting unit between laser main part seat 1 and four station seats 3 among the prior art, obtain the utility model discloses laser main part seat 1 and four station seats 3. In addition, according to the position relation between the existing main body seat 1 and the four station seats 3, a fly swatter structure connecting plate is prepared, one end of the fly swatter structure connecting plate is installed on the main body seat 1 through screws, and the other end of the fly swatter structure connecting plate is connected with the station seats 3 through a horizontal adjusting device 4.

The horizontal adjusting devices 4 are four and the cross sections of the horizontal adjusting devices are connected into a rectangular structure. Four corners of the four station seats 3 are respectively welded with a stud 6, each stud is provided with a nut 5 with the same size, the outer side part of the nut of the stud 6 is inserted into a corresponding through hole on the connecting plate 2, and the diameter of the through hole and the diameter of the stud 6 are noticed. During adjustment each time, the station level on the station seat 3 can be ensured only by adjusting the nut 5. The level adjustment can be carried out at any time according to the production feedback. Hard force contact between the battery plate and the turntable caused by horizontal deviation is reduced, and the fragment rate is reduced.

Claims

1. A laser SE equipment revolving stage, includes laser main part seat (1) and four station seats (3), its characterized in that: the station seat (3) is a rectangular flat plate, each station seat (3) is connected with the laser main body seat (1) through a connecting plate (2), the connecting plates (2) form a flyswatter structure, and the connecting plates (2) are connected with the station seat (3) through a horizontal adjusting device (4).

2. A laser SE apparatus turret according to claim 1, wherein: the horizontal adjusting device (4) comprises a stud (6), a nut (5) and a stud through hole, the stud (6) is integrally connected with the station seat (3) or welded, the connecting plate (2) is provided with a through hole corresponding to the stud (6), and the stud (6) is inserted into the stud through hole after the nut (5) is installed.

3. A laser SE apparatus turret according to claim 1, wherein: the horizontal adjusting devices (4) are four and the cross sections of the horizontal adjusting devices are connected into a rectangular structure.