| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a motor for ventilator which allows for enhancement of workability by weight saving while minimizing deterioration of motor performance. <P>SOLUTION: A motor 10 used in a ventilator that exhausts indoor air to the outside comprises a stator core 12, and a coil 18 being inserted into the stator core. The punching ratio T of the stator core is represented by T=1-([weight of stator core]/(([external-diameter of stator core]<SP POS="POST">2</SP>-[internal-diameter of stator core]<SP POS="POST">2</SP>)/4×π×[thickness of laminate]×[material density of stator core]))≤0.46, and the main conductor of the coil is composed of aluminum. <P>COPYRIGHT: (C)2013,JPO&INPIT |
