ROTOR STRUCTURE OF ROTARY ELECTRIC MACHINE, ROTARY ELECTRIC MACHINE, AND POWER MECHANISM

PROBLEM TO BE SOLVED: To suppress the generation of vibration or noise by improving the bending rigidity of a shaft. SOLUTION: A rotor shaft 72 has a resolver 80 mounted at one end as a rotary position detection sensor, a planetary gear mounted at the other end, and both the ends having different in...

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Bibliographic Details
Main Authors SHIMIZU TAKASHI, SHIMADA YUJI, IWASA YOSHIHARU
Format Patent
LanguageEnglish
Published 10.11.2005
Edition7
Subjects
ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES
ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES
AUXILIARY DRIVES FOR VEHICLES
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
GENERATION
INSTRUMENTATION OR DASHBOARDS FOR VEHICLES
PERFORMING OPERATIONS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
TRANSPORTING
VEHICLES IN GENERAL
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Summary:PROBLEM TO BE SOLVED: To suppress the generation of vibration or noise by improving the bending rigidity of a shaft. SOLUTION: A rotor shaft 72 has a resolver 80 mounted at one end as a rotary position detection sensor, a planetary gear mounted at the other end, and both the ends having different inner diameters Ba, Bb and a flange 72a formed to support a rotor core 74. In the rotor shaft 72, stepped parts 72b, 72c are formed into cylindrical shapes having uniform inner diameters Bc larger than the inner diameters Ba, Bb of both the ends from both the ends toward an inside. Thus, sectional secondary moment to the bend of the rotor shaft 72 can be increased, and bending rigidity can be improved while increasing weight and suppressing a size increase. Accordingly, the vibration of the rotor shaft 72 accompanied by the drive of the motor and the rotation of the planetary gear can be suppressed. As a result, the generation of vibration or noise based on the rotor shaft 72 can be suppressed. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20040131508