Brushless DC motors and ceiling fans use these motors

Abstract

The invention relates to a brushless DC (direct current) motor comprising: a shaft (3), a stator core (1), a rotor chuck (5), magnets (6), and a control board (10). The stator core (1) comprises slots and is fixed to the shaft (3). The slots are arranged along the periphery of the state core (1). The rotor chuck (5) has its inner peripheral surface facing the stator core (1). The magnets (6) are arranged on the inner peripheral surface of the rotor chuck (5) along the periphery of the rotor chuck (5). The control circuit board (1) allows the shaft (3) to pass through it and is adjacent to the stator core (1) along the shaft's axis of rotation. The control circuit board (1) includes at least one Hall element constructed to detect the magnetic forces of the magnets (6). At least one Hall element supported by a component chuck is inserted into at least one of the State core slots (1).