This utility model relates to a brushless motor, and more particularly to a brushless motor that does not require a Hall sensor. It includes a rotor and a
stator. The rotor includes a permanent
magnet, and the
stator includes an electromagnetic
assembly. The electromagnetic
assembly cooperates with the permanent
magnet. The permanent
magnet is arranged circumferentially along the rotor's rotation center line, and the electromagnetic
assembly is arranged radially along the rotor's rotation center line. The electromagnetic assembly includes
electromagnet A and
electromagnet B, with at least two of each. Electromagnets A and B are staggered circumferentially along the rotor's rotation center line. Electromagnets A and B have the same magnetic pole facing the rotor. Electromagnets A and B are alternately energized, forming a traction segment between them. As long as the permanent magnet is between the start and end points of the traction segment, it will experience a traction force. When the permanent magnet is at the start or end point of the traction segment, it will remain stationary and will not reverse.