Back to results
US 6,674,192 B2Granted
Dynamoelectric machine
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsHideki Morikaku, Yoshinobu Utsumi, Katsuhiko Kusumoto, Atsushi Oohashi
Life of this patent
Estimating the term…
Abstract
Slip rings are fixed to an outer circumference of a shaft axially inside a rear-end bearing, brushes are disposed so as to contact outer circumferential surfaces of the slip rings, a sensor rotor of a rotation detecting apparatus is fixed to an end portion of the shaft projecting axially outside the rear-end bearing, and a sensor unit is disposed in close proximity to the sensor rotor.
Claims12
A dynamoelectric machine comprising:
- a housing;
- a first bearing disposed in a first axial end portion of said housing;
- a second bearing disposed in a second axial end portion of said housing;
- a shaft rotatably supported in said housing by means of said first and second bearings;
- a rotor having a rotor core and a rotor coil installed in said rotor core, said rotor core being fixed to said shaft and rotatably disposed inside said housing;
- a stator having a stator core and a stator coil installed in said stator core, said stator core being supported in said housing so as to surround an outer circumference of said rotor;
- a contacted part fixed to an outer circumference of said shaft axially inside said first bearing and electrically connected to said rotor coil;
- a contact disposed so as to contact an outer circumferential surface of said contacted part;
- and
- a rotation detecting apparatus comprising:
- a sensor rotor fixed to an end portion of said shaft projecting axially outside said first bearing;
- a sensor unit disposed in close proximity to said sensor rotor;
- and
- a connector unit for delivering input and output signals to and from said sensor unit.
11 more elements
Dependencies are inferred from the claim text.