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US 2014/0368074 A1Published application
Motor including flexible printed circuit board stator
AssigneeHamilton Sundstrand Corporation
InventorJagadeesh Tangudi
Life of this patent
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Abstract
A motor having a compact and lightweight design may include a stator provided by a flexible printed circuit (flex circuit). The flex circuit may include a plurality of etched windings that provide coils for a plurality of motor phases. A printed circuit board of the motor may provide various device functions such as electrical commutation. The motor may be used in various applications such as a cooling fan for device electronics and gyroscopic applications.
Claims20
An electric motor, comprising:
- a motor stator comprising a flexible printed circuit, wherein the flexible printed circuit comprises a plurality of coils;
- a motor rotor comprising a plurality of permanent magnets, wherein the motor rotor is spaced apart from the flexible printed circuit;
- and
- a power signal connected to the plurality of coils and configured to power the plurality of coils, wherein the electric motor is configured to rotate the motor rotor around the motor stator during application of power to the plurality of coils.
1 more element
A method for operating an electric motor, comprising:
- applying a power signal to a flexible printed circuit comprising a plurality of motor stator coils to generate an electromagnetic field;
- and
- rotating a motor rotor around the plurality of motor stator coils using the electromagnetic field, wherein the plurality of permanent magnets are spaced apart from the flexible printed circuit.
Dependencies are inferred from the claim text.