초록 ▼

Ceiling fan motors which include forced air ventilation and heat dissipation systems to provide significantly reduced motor operating temperatures, improved motor component tolerances, lower manufacturing costs, and ease of assembly. The ceiling fan motor is of the inside-out type and includes an im

Ceiling fan motors which include forced air ventilation and heat dissipation systems to provide significantly reduced motor operating temperatures, improved motor component tolerances, lower manufacturing costs, and ease of assembly. The ceiling fan motor is of the inside-out type and includes an impeller mechanism associated with at least one of the upper or lower portions of the motor casing for drawing substantial volumes of air into the casing, across the stator, and through the opposite portion of the motor casing. The motor casing components may be formed from cast aluminum. Alternatively, the entire casing and rotor is of unitary integrally cast aluminum. One of the end faces of the motor casing may include integrally cast blade ramps.

대표청구항 ▼

[ We claim:] [1.] An inside-out ceiling fan motor comprising:a motor casing including an upper casing portion having a substantially cylindrical upper side wall region and a top end face region and a lower casing portion having a substantially cylindrical lower side wall region and a bottom end face

[ We claim:] [1.] An inside-out ceiling fan motor comprising:a motor casing including an upper casing portion having a substantially cylindrical upper side wall region and a top end face region and a lower casing portion having a substantially cylindrical lower side wall region and a bottom end face region, said bottom end face region including a plurality of air flow passageways, said upper side wall region including a plurality of circumferential openings permitting airflow therethrough;an annular rotor secured with said motor casing and defining an interior space with said upper and lower side wall regions and said top and bottom end face regions;a stator positioned within the interior space; andair forcing means, disposed within said upper casing portion, for drawing air from the exterior of said motor casing inwardly through said air flow passageways in said bottom end face region of said lower casing portion, across the stator, and outwardly to the exterior of said motor casing through said circumferential openings in said upper side wall region of said upper casing portion.