Rotary electric machine
AssigneeDenso Corporation
InventorsWATARU NIWA, RYOHEI OBA, YUKI TAKAHASHI
Life of this patent
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Abstract
A motor device includes a stator, a rotor, a shaft, an electric power busbar, and a resolver. The shaft includes a shaft main body that rotates together with the rotor. The electric power busbar is provided at a position away from the shaft main body toward a radially outer side. The electric power busbar extends in an annular shape in a circumferential direction. The resolver is provided on the shaft main body and detects a rotation angle of the shaft main body. The resolver is provided at a position away from the electric power busbar toward a radially inner side. The resolver is in a state of entering between the electric power busbar and the shaft main body.
Claims11
A rotary electric machine to be driven by supply of electric power, the rotary electric machine comprising:
- a stator including a coil;
- a rotor configured to rotate about a rotation axis and aligned with the stator in an axial direction in which the rotation axis extends;
- a rotation shaft portion configured to rotate about the rotation axis together with the rotor;
- an energization busbar provided on an outer side of the rotation shaft portion in a radial direction of the rotation axis, extending in a circumferential direction of the rotation axis, and electrically connected to the coil;
- and
- a rotation detection unit provided at a position away from the energization busbar toward an inner side in the radial direction in a state of entering between the energization busbar and the rotation shaft portion and configured to detect a rotation state of the rotation shaft portion.
Dependencies are inferred from the claim text.