Abstract: A bidirectional load-bearing motor and an aircraft containing the same. The motor includes a bearing housing, a rotating shaft, a locking screw, a bearing, and a bearing retainer. The rotating shaft comprises a first shaft and a second shaft concentrically arranged with a shaft shoulder formed at their junction. The locking screw is threadedly connected to the inner surface of the second shaft. The bearing is sandwiched between the bearing housing and the rotating shaft; the inner ring of the bearing is sleeved on the second shaft, and the end face of the bearing away from the locking screw abuts against the shaft shoulder, while the outer ring of the bearing contacts the bearing housing.

Abstract: An aircraft and its centrifugal fan. The centrifugal fan of this invention has a plurality of airflow ducts circumferentially arranged around the rotational axis of the centrifugal fan. Each airflow duct is provided with a damper that opens under the thrust of airflow when air flows outward through the duct and automatically closes when the airflow ceases. The centrifugal fan of this invention addresses the protection issue at the outlet of aircraft centrifugal fans, reduces the impact of wind resistance, improves the reliability of the power unit, and achieves a higher protection level.

Abstract: A highly integrated motor-controller integrated system having a motor unit, an electronic controller unit, a connecting member, and a heat dissipation channel. The electronic controller unit is fixedly disposed below the motor unit and controls the motor unit, with a center of the motor unit aligned with a center of the electronic controller unit. The motor unit and the electronic controller unit form a motor-controller integrated unit via the connecting member, and the connecting member penetrates the motor unit and the electronic controller unit to connect them in series. A flowing gas dissipates heat from the motor unit and the electronic controller unit through the heat dissipation channel built into and penetrating the motor-controller integrated system.

Abstract: A motor and a centrifugal fan thereof. The centrifugal fan of the invention has a centrifugal fan body, which has a plurality of main air ducts circumferentially surrounding the rotation axis of the centrifugal fan; an air duct ring, comprising a plurality of extended air ducts circumferentially surrounding the rotation axis of the centrifugal fan; the air duct ring is configured to be sleeved on the centrifugal fan body so that the extended air ducts and the main air ducts are connected one-to-one. This invention extends the airflow channels of the centrifugal fan, increases the outer linear speed of the centrifugal fan, expands the heat dissipation area for airflow, significantly improves heat dissipation efficiency, and allows for simple installation and replacement.

Abstract: An aircraft and a power unit thereof. The power unit of the invention having: a stator having at least one pair of stator magnetic assemblies and a bearing sleeve, each of stator magnetic assemblies having a plurality of stator magnetic units, and the stator magnetic units are uniformly arranged circumferentially on the bearing sleeve. A rotor is arranged opposite to the stator and rotatably connected to the stator. The rotor having a plurality of rotor magnetic units, and the rotor magnetic units of the rotor are respectively interacting magnetically with each stator magnetic assembly to provide a driving force for the rotor to rotate relative to the stator. The invention achieves a redundant power device, solving the problem of complete failure in single-motor power unit when power is lost, thereby improving the reliability of the power unit.

Abstract: An aircraft power unit includes a motor module, an ESC module, and a plurality of fixed connecting rods. The motor module includes a plurality of terminal posts, and the ESC module includes a plurality of ESC sockets corresponding to the terminal posts. One end of each fixed connecting rod passes through the ESC module to serially connect the motor module and the ESC module, so that the terminal posts are connected to the corresponding ESC sockets, and the other end of each fixed connecting rod is connected to the aircraft fuselage. The aircraft power unit of this invention modularizes the production and assembly of the motor and ESC, reducing costs.