Slim-line brushless motor with inside mounted single bearing
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United States of America Patent
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-
Dec 1, 1998
Issued Date -
N/A
app pub date -
Nov 26, 1997
filing date -
Dec 18, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A slim-line direct current (DC) brushless motor for automotive and HVAC applications utilizes a single contact bearing assembly to rotatably couple an exterior rotor to an interior stator. The rotor includes a flat permanent magnetic and the stator assembly includes a flat coil. The flat coil is made from a stamped copper member. The rotor is staked to the bearing assembly by a hub-shaft. The lone contact bearing can be a double horizontal row contact bearing, a four point contact bearing, or a closed cylindrical roller bearing. A cooling fan is disposed on the top of the rotor to cool internal control circuitry within the motor. The motor is easily assembled and has a minimal number of moving parts.
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