Cooling fan, in particular a radiator fan for motor vehicles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 2, 2002
Grant Date -
N/A
app pub date -
Sep 29, 2000
filing date -
Oct 13, 1999
priority date (Note) -
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Abstract
A cooling fan, in particular a radiator fan for a motor vehicle, includes an electronically commutated electric motor and an electronics casing (21) with an electronic control for controlling the electric motor. The outer surface of the electronics casing (21) has cooling fins (25), the free ends of which project into the cold air flow produced by the impeller (9) of the fan. The free ends (27) of the cooling fins (25) projecting into the cold air flow have air diverting elements through which a part of the predominantly axial cold air flow produced by the impeller (9) is diverted in a radial direction relative to the impeller (9) and then in the longitudinal direction of other ends (29) of the cooling fins (25) arranged on the surface of the electronics casing (21). This provides effective cooling of the electronics casing.
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