SERVO MOTOR WITH IMPROVED HEAT DISSIPATION EFFICIENCY
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United States of America Patent
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N/A
Issued Date -
Sep 9, 2010
app pub date -
May 19, 2009
filing date -
Mar 5, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A servo motor includes an enclosure defining airflow passages in the outer surface thereof, an end cover attached to the enclosure, a rotor shaft accommodated in the enclosure and having an end protruding out of the end cover, an encoder attached to the protruding end of the rotor shaft, an encoder cover attached to the end cover and covering the encoder, a fan duct covering the end cover, and a fan attached to the fan duct. The end cover, the encoder cover, and the fan duct cooperatively define an airflow space communicating with the airflow passages of the enclosure. The encoder cover includes a guiding portion gradually shrinking toward a small end which is away from the end cover. The fan duct includes a guiding portion gradually shrinking toward an end to which the fan is attached, thereby to guide the airflow smoothly flow toward the fan.
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