US 12,262,561 B2
Photovoltaic module and method for preparing the photovoltaic module
Zhiqiu Guo, Jiaxing (CN); Shiliang Huang, Jiaxing (CN); Yingli Guan, Jiaxing (CN); and Jingguo Yang, Jiaxing (CN)
Assigned to JINKO SOLAR (HAINING) CO., LTD., Haining Zhejiang (CN); and ZHEJIANG JINKO SOLAR CO., LTD., Haining Zhejiang (CN)
Filed by JINKO SOLAR (HAINING) CO., LTD., Zhejiang (CN); and ZHEJIANG JINKO SOLAR CO., LTD., Zhejiang (CN)
Filed on Nov. 9, 2023, as Appl. No. 18/506,088.
Application 18/506,088 is a continuation of application No. 18/059,409, filed on Nov. 28, 2022, granted, now 11,862,744.
Claims priority of application No. 202211191178.X (CN), filed on Sep. 28, 2022.
Prior Publication US 2024/0105871 A1, Mar. 28, 2024
Int. Cl. H10F 19/90 (2025.01); H02S 40/36 (2014.01)
CPC H10F 19/90 (2025.01) [H02S 40/36 (2014.12)] 20 Claims
OG exemplary drawing
 
1. A photovoltaic module, comprising:
at least one cell string, wherein each of the at least one cell string includes a plurality of solar cell sheets, each of the plurality of solar cell sheets includes a substrate having a front surface and a back surface opposite to the front surface, and a plurality of bus bars disposed on the back surface, the plurality of bus bars are disposed at intervals along a first direction and extend along a second direction, and each of the plurality of bus bars includes a plurality of bonding pads disposed at intervals along the second direction and a bus bar connecting line; and
a plurality of welding strips, wherein each welding strip of the plurality of welding strips is configured to connect two adjacent solar cell sheets in the plurality of solar cell sheets, to be in electrical contact with a corresponding bus bar on each of the two adjacent solar cell sheets, and to have a plurality of bending portions arranged continuously along the second direction, and wherein an orthographic projection of a central line of the each welding strip on a back surface of a solar cell sheet coincides with an orthographic projection of a central line of the corresponding bus bar on each of the two adjacent solar cell sheets and/or an orthographic projection of a central line of each of the plurality of bonding pads of the corresponding bus bar on the back surface of each of the two adjacent solar cell sheets;
wherein along the second direction, adjacent bending portions in the plurality of bending portions are bent in a same direction or opposite directions.