Patent ID: 11965529
Assignee: NEOFAN, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  H | IPC F  H

Claim 11:
12. A linear fan and heat sink assembly comprising:
a linear fan comprising:
a fan blade connected to a fan frame;
the fan blade having a free end and a connected end such that the blade can oscillate by pivoting along the connected end;
a motor including a permanent magnet connected to the fan blade and a stator assembly including a current carrying coil wrapped around a leg of a lamination stack; wherein the motor is controlled to vary the direction of the current being carried in the coil to thereby change the direction of the magnetic field created by the stator assembly and cause the fan blade to oscillate;
wherein the stator assembly is mounted to the fan frame; and

a heat sink comprising a plurality of channels formed by parallel fins;
wherein the linear fan operates to force air through each of the channels when the fan blade oscillates and wherein the ratio of the length of the fan blade to the height of the fan blade is greater than 1.0.