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Patent Searching and Data


Title:
DOUBLE-ROTOR THREE-PHASE ELECTRIC MOTOR
Document Type and Number:
Japanese Patent JP2019037084
Kind Code:
A
Abstract:
To provide a double-rotor three-phase electric motor in which a stator is fixed to a motor case while an increase in size of the stator is suppressed.SOLUTION: A double-rotor three-phase electric motor includes a stator including an outer rotor, an inner rotor, and an annular stator core disposed between an inner periphery of the outer rotor and an outer periphery of the inner rotor and a stator fixing portion for fixing the stator to a motor case. The stator core 22 has the same number of axial through holes 80 provided in an annular center yoke 24 for each of the three phases and includes a column 90 that is erected from the motor case 100 as a stator fixing portion and is inserted into the axial through hole 80 to be press-fitted and coupled to the stator 20.SELECTED DRAWING: Figure 4

Inventors:
MIZUTANI TATSUHIKO
HATTORI HIROYUKI
WAKAMATSU SHINJI
Application Number:
JP2017158019A
Publication Date:
March 07, 2019
Filing Date:
August 18, 2017
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
H02K16/02; H02K1/18; H02K21/16
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office