| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric hub device in which a motor is efficiently cooled by a simple structure. SOLUTION: This electric hub device 9 comprises a hub body 15 rotatable relative to hub shafts 14a, 14b and the motor 16 for rotating the hub body 15. The hub body 15 has an opening 18 at one end. The other end is formed in a closed cylindrical shape. The motor 16 is disposed in the hub body 15, and comprises a motor housing 22, a stator 23 fixed to the inside of the motor housing 22, and a rotor 24 rotatably installed in the motor housing 22. The motor housing 22 has one housing body 32 as a heat-dissipating part exposed to the outside through the opening 18 of the hub body 15. The stator 23 is covered by a resin 30 having insulation performance and heat conductivity, and fitted to one housing 32 through the resin 30. COPYRIGHT: (C)2009,JPO&INPIT
|
