High-power-density motor inner fan

The utility model relates to an inner fan of a high power density motor, which belongs to the field of motor manufacture, and comprises a fan base body and fan blades fixed on the fan base body, the fan base body is provided with an inner retaining edge and an outer retaining edge, one side of the inner retaining edge is provided with a balance block fixing hole, and the other side of the inner retaining edge is provided with a balance block. A circular-arc-shaped balance block is fixed to the balance block fixing hole through a fastener, and a limiting ring is arranged on one side of the outer flange. According to the utility model, a forged steel hub is not used any more, and the inner fan is designed into two mutually independent parts, so that the manufacturing difficulty is greatly reduced, the manufacturing cost is greatly reduced, the manufacturing period is greatly shortened, the operation stability is greatly improved, the motor quality is further improved, and the service life of the motor is prolon