Patent ID: 6137197
Filing Date: 2000-10-24
Classification: F04D,H02K

Abstract:
An axial flow motor, comprising:a motor housing that supports a bearing box, the motor housing having a cutout portion for probing;bearings supported by the bearing box;a rotary shaft rotatably supported by the bearings;a yoke fixed on the rotary shaft;an impeller having wings, the impeller being fixed on an outer diameter portion of the yoke;a magnet mounted on an inner diameter of the yoke;a stator winding positioned to face the magnet; anda printed circuit board located between the stator winding and the motor housing, the printed circuit board including electronic circuits for supplying a current to the stator winding to rotate the rotary shaft, a terminal pin, and a projection provided on an outer circumference of the printed circuit board,wherein a U-letter shaped groove is provided on a portion of the motor housing with which the projection is engaged, the groove and projection providing secure positioning of the printed circuit board such that a probe of a testing device is able to be inserted through the cutout portion into contact with the terminal pin.