Solder strip, air knife and photovoltaic module

• Main Author: BU JUNWEI
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SEMICONDUCTOR DEVICES; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The utility model discloses a solder strip, an air knife and a photovoltaic assembly, the solder strip comprises a middle layer, a first solder coating and a second solder coating, and the middle layer comprises a flat section and a circular section which are connected; the periphery of the flat section is coated with the first solder coating, and the maximum thickness of the first solder coating ranges from 10 micrometers to 40 micrometers; the second solder coating wraps the periphery of the circular section, and the maximum thickness of the second solder coating ranges from 2 micrometers to 40 micrometers. According to the welding strip, the maximum thickness of the first welding flux coating ranges from 10 micrometers to 40 micrometers, pseudo soldering can be avoided, meanwhile, cracking can be prevented, welding can be facilitated, the welding reliability is good, meanwhile, the maximum thickness of the second welding flux coating ranges from 2 micrometers to 40 micrometers, the maximum thickness of the