| 摘要 |
<p>A motor and fan structure 10 includes direct current motor assembly 18 having a stator assembly 20 including a flux plate 22 and permanent magnet structure 24 mounted on the flux plate 22. The flux plate 22 defines one end of the motor assembly and defines a magnetic flux path of the motor assembly. The motor assembly also includes a generally cylindrical armature assembly 32 defining another end of the motor assembly. The armature assembly is radially wound with windings 40, and an outermost part of the armature assembly and at least a portion of the windings is exposed to the environment. The structure includes a fan 12 having a generally cylindrical hub 14 receiving and covering the outermost part and the portion of the windings of the armature assembly. The hub 14 has a plurality of blades 16 extending therefrom. Thus, the weight and axial length of the motor assembly can be reduced since no case is required to cover the armature assembly yet the armature assembly is protected by the fan hub.</p> |
