US 12,087,875 B2
Method for manufacturing photovoltaic (PV) module
Yujun Zhang, Suzhou (CN); Aibing Tao, Suzhou (CN); and Jia Shen, Suzhou (CN)
Assigned to Jiangsu Coop&Inno Green Energy Technology Co., Ltd., Wuxi (CN); Wuxi Coop&Inno Green Energy Technology Co., Ltd., Wuxi (CN); and WUXI DINGSENMAO TECHNOLOGY CO., LTD, Wuxi (CN)
Appl. No. 17/593,627
Filed by Jiangsu Coop&Inno Green Energy Technology Co., Ltd., Wuxi (CN); Wuxi Coop&Inno Green Energy Technology Co., Ltd., Wuxi (CN); and WUXI DINGSENMAO TECHNOLOGY CO., LTD, Wuxi (CN)
PCT Filed Dec. 19, 2019, PCT No. PCT/CN2019/126580
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2020/199660, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 201910248480.6 (CN), filed on Mar. 29, 2019.
Prior Publication US 2022/0165908 A1, May 26, 2022
Int. Cl. B23K 1/00 (2006.01); B23K 31/12 (2006.01); H01L 31/05 (2014.01); H01L 31/18 (2006.01); H02S 50/15 (2014.01)
CPC H01L 31/1876 (2013.01) [B23K 1/0016 (2013.01); B23K 31/125 (2013.01); H01L 31/0504 (2013.01); H02S 50/15 (2014.12)] 12 Claims
OG exemplary drawing
 
1. A method for manufacturing a photovoltaic (PV) module, comprising:
at a stringing workstation, using a stringer to simultaneously solder at least two cell strings, and during a cell soldering process, soldering an interconnecting bar at a predetermined position, wherein the interconnecting bar is configured to connect the at least two cell strings in parallel;
at the stringing workstation, performing an inspection on cells in the at least two cell strings to obtain cell images and cell inspection results, wherein the cell inspection results are used to determine whether a cell needs to be repaired, and the inspection comprises an electroluminescence (EL) inspection and an appearance inspection or the inspection comprises the EL inspection, a photoluminescence (PL) inspection and the appearance inspection;
sending an image of a cell that needs to be repaired to a repair workstation;
automatically soldering bus bars at heads and tails of the at least two cell strings to form a cell module, wherein the bus bars are configured to connect the heads and the tails of the at least two cell strings in parallel;
placing cell modules on a front plate glass in sequence, and marking the cell that needs to be repaired;
determining whether the cell that needs to be repaired exists in the cell modules;
when a defective cell that needs to be repaired exists in the cell modules, sending a repair procedure instruction, and delivering the front plate glass of carrying the cell modules to the repair workstation according to the repair procedure instruction;
when the cell that needs to be repaired does not exist in the cell modules, delivering the front plate glass of carrying the cell modules to a stacking workstation;
at the stacking workstation, soldering together bus bars at tails of two adjacent cell modules;
laying a backside adhesive film and a backside board; and
before laminating, performing the EL inspection and the appearance inspection.