Driving apparatus of electric vehicle and method for assembling driving apparatus of electric vehicle
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United States of America Patent
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May 1, 2018
Issued Date -
N/A
app pub date -
Oct 27, 2016
filing date -
Oct 27, 2015
priority date (Note) -
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Abstract
A driving apparatus of an electric vehicle that enables secure positioning and easy assembling, and a method for assembling the driving apparatus of the electric vehicle. A driving apparatus of an electric vehicle includes an electric motor provided in an electric motor case, the electric motor having an output shaft protruding outside the electric motor case, a planetary gear mechanism provided in a speed reducer case, the planetary gear mechanism transferring the driving force at a reduced speed from the output shaft to the driving wheel. The output shaft integrally includes a sun gear meshed with a planetary gear of the planetary gear mechanism. The speed reducer case includes a positioning section disposed concentrically with the output shaft, the positioning section being combined with the electric motor case. A meshing length between the sun gear and the planetary gear is larger than an insertion depth of the positioning section.
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