Motor with rotor positioning component
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United States of America Patent
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May 5, 2015
Grant Date -
Jul 31, 2014
app pub date -
Jan 25, 2013
filing date -
Jan 25, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A motor includes a base, a rotor unit and a driving unit. The base has opposite first and second surfaces. The rotor unit includes a magnet unit disposed on a rotatable magnet carrier to face the first surface of the base. The driving unit includes a circuit board disposed between the base and the magnet unit, induction coils disposed on the circuit board and operatively associated with the magnet unit, a sensor unit disposed on the circuit board and spaced apart from the induction coils, and a rotor positioning component disposed on the second surface of the base and capable of magnet attraction with the magnet unit for positioning the rotor unit relative to the sensor unit when the rotor unit stops rotating.
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