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US 5,666,011 AGranted
Miniature fan motor assembly
OwnerChing-Shen Honginventor
Life of this patent
Estimating the term…
Abstract
A miniature fan motor assembly comprises a housing base provided with a base plate and a tubular post on the base plate for engaging a cylinder so as to support a rotor along its axis. The base plate combines with a circuit board on which a coil winding and a silicon steel sheet are secured to each other by an adhesive. The rotor is started by a magnetic field generated by a magnet and the coil winding.
Claims2
A miniature fan motor assembly comprising:
- a housing base including a base plate, said base plate including a tubular post extending from a side thereof, said tubular post including a plurality of slots extending along a longitudinal direction thereof;
- a cylinder mounted in the tubular post, said plurality of slots causing said tubular post to engage and position said cylinder;
- a rotor comprising a fan and a shaft post, said fan being mounted on said shaft post, said shaft post being rotatably mounted in the cylinder;
- a magnet securely mounted to the fan;
- and
- a stator comprising a circuit board securely mounted around the tubular post, a silicon steel plate and a coil winding together adhering to the circuit board, said silicon steel plate and said coil winding being in the form of a thin sheet, said coil winding generating a magnetic field interacting with said magnet to drive said rotor.
3 more elements
Dependencies are inferred from the claim text.