Patent ID: 9647515
Date: 2017-05-09
CPC Classifications: F04B,F04D,H02K

Claim:
1. A brushless motor comprising: a stator including a plurality of stator cores formed of a magnetic material, a plurality of stator coils wound about the stator cores, a plurality of bobbins covering the stator cores to insulate the stator coils from the stator cores, power supply terminals provided radially outside the bobbins to receive electric power from an external side, and relay terminals connecting electrically the power supply terminals and the stator coils, the stator generating a rotating magnetic field when power supply to the stator coils is controlled; and a rotor provided radially inside the stator and magnetized to opposite magnetic poles alternately in a circumferential direction to be rotated by the rotating magnetic field generated by the stator, wherein the relay terminals include, respectively, first connection parts, which are connected electrically to the power supply terminals, and second connection parts, which are connected electrically to the first connection parts and the stator coils, wherein each of the second connection parts is provided radially inside the power supply terminal, formed in a U-shape opening in a radially outward direction, and provided at a position adjacent to the power terminals in a circumferential direction, and wherein each of the second connection parts is connected electrically within the respective U-shaped opening to a corresponding coil of the plurality of stator coils at a coil end of the corresponding coil, and each of the second connection parts in connected electrically within the respective U-shaped opening to another corresponding coil of the plurality of stator coils at a coil end of the other corresponding coil, and the corresponding coil and the other corresponding coil extend in different directions from the respective U-shape opening.