MOTOR
Number of patents in Portfolio can not be more than 2000
United States of America
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N/A
Issued Date -
Mar 20, 2025
app pub date -
Nov 1, 2022
filing date -
Nov 1, 2022
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A motor includes a rotor and a stator. The rotor includes a shaft extending in the axial direction of the central axis, and a rotor core having a shaft insertion hole into which the shaft is inserted. The motor has a fan that is fixed to the shaft or the rotor core at a position axially outside the rotor core and rotates together with the rotor core. The rotor core has an air passage. The shaft has a shaft inner passage. The air passage includes a first rotor core opening opened to an axial end surface of the rotor core and a second rotor core opening opened to an inner surface of the shaft insertion hole. The shaft inner passage includes a first shaft opening opened at a position on the axially outer side with respect to the fan, and a second shaft opening opened at a position connected to the second rotor core opening.
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