Title:
HYBRID EXCITATION TYPE ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JP2022178155
Kind Code:
A
Abstract:
To provide a hybrid excitation type rotary electric machine whose cooling of an exciting coil is improved.SOLUTION: A hybrid excitation type rotary electric machine comprises: a rotor comprising a shaft extending along a central axis, and a rotor core fixed onto a radial outer side of the shaft; a stator arranged via an air gap on a radial outer side of the rotor; and an excitation coil unit comprising an excitation coil for exciting the rotor core. The rotor comprises a permanent magnet for exciting the rotor core. The excitation coil is opposed to the rotor core in an axial direction. The stator comprises a first stator core arranged on one axial side of the excitation coil unit, and a second stator core arranged on the other axial side of the excitation coil unit. The excitation coil unit comprises, in at least one of a surface on the one axial side and a surface on the other axial side, a groove part which a coolant can flow into.SELECTED DRAWING: Figure 1
Inventors:
OKITSU TAKASHI
SATO TERUKAZU
SATO TERUKAZU
Application Number:
JP2021084728A
Publication Date:
December 02, 2022
Filing Date:
May 19, 2021
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
H02K19/12
Attorney, Agent or Firm:
Ryoichi Takaoka
Nao Oda
Toshihide Mori
Rena Miyoshi
Nao Oda
Toshihide Mori
Rena Miyoshi
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