The three-electric system, namely power battery, drive motor and motor controller, are the core component that determines the sports performance of new energy vehicles. The core component of the motor drive part is IGBT (Insulated Gate Bipolar Transistor). As the "CPU" in the power electronics industry, IGBT is internationally recognized as the most representative product in the electronic revolution. Multiple IGBT chips are integrated and packaged together to form an IGBT module, which has greater power and stronger heat dissipation capabilities. It plays an extremely important role and influence in the field of new energy vehicles.
Carman Haas can provide one-stop solution for IGBT module welding. The welding system consists of fiber laser, scanner welding head, laser controller, control cabinet, water cooling unit and other auxiliary function modules. The laser is input to the welding head through optical fiber transmission, then irradiated on the material to be welded. Generate extremely high welding temperatures to achieve welding processing of IGBT controller electrodes. The main processing materials are copper, silver-plated copper, aluminum alloy or stainless steel, with a thickness of 0.5-2.0mm.
1、By adjusting the optical path ratio and process parameters, thin copper bars can be welded without spatter (upper copper sheet <1mm)；
2、Equipped with power monitoring module to monitor laser output stability in real time；
3、Equipped with LWM/WDD system to monitor the welding quality of each weld seam online to avoid batch defects caused by faults；
4、Welding penetration is stable and high, and the fluctuation of the penetration<±0.1mm；
Application of thick copper bar IGBT welding (2+4mm /3+3mm).
