Patent ID: 8506264

Claim:
A motor, comprising: a base including a cooling plate; a stator coupled to the base; a rotor rotatably coupled to the base and aligned with the stator; a circuit board coupled to the base, having first and second faces and electrically connected to the stator; a plurality of electronic components mounted on the first and second faces of the circuit board; a heat-conducting insulator disposed between the cooling plate and the first face of the circuit board and between the cooling plate and the plurality of electronic components mounted on the first face of the circuit board, and respectively abutting with the cooling plate and one face of the circuit board, wherein the heat-conducting insulator is made of an insulation material selected from one of acrylic resin, silica gel and other composite material with silica gel and one of a ceramic powder and a metal powder; and an auxiliary heat-conducting insulator disposed at the second face of the circuit board and extending over the plurality of electronic components mounted on the second face of the circuit board, wherein the auxiliary heat-conducting insulator is made of an insulation material selected from one of acrylic resin, silica gel and other composite material with silica gel; wherein the stator includes an upper end and a lower end spaced from the upper end in a direction parallel to the rotor, with the stator further including a plurality of circumferentially spaced heat-conducting members each having one end extending beyond the lower end and through the circuit board to contact with the heat-conducting insulator and having another end extending to the upper end, with the plurality of the circumferentially spaced heat-conducting members extending parallel to the rotor.