Thermal equivalent circuit network for outer rotor type motors

In the industry and military field, hydraulics is substituted by motor. In contrast with automotive and home appliance, this motor required various torque level. The test motor operates under low speed and high torque. Because this motor needed high armature current and armature is located in near shaft in the outer rotor type, this is disadvantage than inner rotor type in the radiant. In this paper, the thermal analysis is conducted by thermal equivalent circuit, analysis is compared with test.