METHOD OF ASSEMBLING EXTENDABLE INVERTER AND MECHANICAL ASSEMBLY THEREOF

Disclosed are a method of assembling an extendable inverter and mechanical assembly thereof. The mechanical assembly of the extendable inverter comprises an inverter casing (1), a heat sink (2) provided in the inverter casing, M power modules (3) mounted on the heat sink, a drive circuit board (4) and a control circuit board (5) mounted in the inverter casing. The control circuit board drives the M power modules through the drive circuit board, wherein the number M of the power modules is variable, ranging from 3 to N, and N is an integer greater than 3. The number M of the power modules is determined by load requirements, and any combination of M high-voltage AC outputs corresponding to the M power modules can be utilized to adapt to various loads. The mechanical assembly of the extendable inverter has a simple structure, is compact, and the number of the power modules can be easily extended and combined as needed to satisfy the needs for different loads, thus being flexible, convenient, highly versatile, an