Patent ID: 8070420

Claim:
An airflow-cooling apparatus of a ceiling air-conditioning circulation machine, comprising: a) a base frame having a rectangular positioning frame at the rim thereof, a plurality of radial supports being extended from the periphery of the positioning frame inwards, a circular frame being positioned at the center of the base frame, the rim of the circular frame being attached to the radial supports, a fan base being positioned within the circular hole of the circular frame and supported by a plurality of ribs, a plurality of conic and ring-shaped air outflow/inflow channels being concentrically and outwardly interposed between the circular frame and the positioning frame, a wave-shaped cooling ring frame 18 being disposed on the circular frame; b) a fan consisting of a motor and a vane wheel, the motor being installed on the fan base with the vane wheel directed upwards; c) a signal-receiving controller positioned on the base frame and electrically coupled with the fan; and d) a cover cap placed upon the rectangular positioning frame of the base frame.