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US 7,453,696 B2Granted
Cooling device for a radial fan driven by an electric motor with IC
Assigneeebm-papst Landshut GmbH
InventorsRudolf Tungl, Roland Keber
Life of this patent
Estimating the term…
Abstract
A radial fan includes an integrated circuit which is conductively connected to a printed circuit board to control a motor. The flow of air provided by a cooling impeller is conveyed directly to the integrated circuit to cool the integrated circuit during operation of the radial fan.
Claims15
A radial fan with an electric motor and a printed circuit board with electronics, an air impeller driven by the electric motor for cooling the electronics and with a cap enclosing and protecting the electric motor, said cap having a cover and a peripheral wall,
- wherein at least one inflow opening is provided on the cap for external air;
- an integrated circuit (IC) is disposed on the printed circuit board;
- and
- a guiding device is provided for directing an air flow produced by the air impeller to the integrated circuit (IC).
1 more element
Dependencies are inferred from the claim text.