IPM ROTATING ELECTRIC MACHINE - MITSUBISHI HEAVY IND LTD

Title:

IPM ROTATING ELECTRIC MACHINE

Document Type and Number:

WIPO Patent Application WO/2005/076440

Kind Code:

A1

Abstract:

A technique enabling permanent magnets constituting the field of an IPM rotating electric machine to be embedded in a rotor core in a shallower depth. The IPM rotating electric machine includes a stator and a rotor. The rotor has a rotor core and permanent magnets forming the field. The rotor core has a side face facing the stator, and the permanent magnets are shallowly embedded in the rotor core such that the distance between its magnetic pole face and the side face of the rotor is reduced. Furthermore, two adjacent permanent magnets are positively separated to satisfy the relation of 0.3<(L_q-L_d)/L_d, where L_q is the q-axis inductance and L_d is the d-axis inductance of the rotor.

More Like This:

JP2001218397	ROTOR FOR PERMANENT MAGNET-TYPE MOTOR
JP4045246	Vehicle generator motor
WO/2021/059551	ROTATING DEVICE

Inventors:

FUJIWARA KENJI (JP)
KOGURE TAKATOSHI (JP)
NISHIO AKIRA (JP)
BABA TUTOMU (JP)

Application Number:

PCT/JP2005/001597

Publication Date:

August 18, 2005

Filing Date:

February 03, 2005

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUBISHI HEAVY IND LTD (JP)
FUJIWARA KENJI (JP)
KOGURE TAKATOSHI (JP)
NISHIO AKIRA (JP)
BABA TUTOMU (JP)

International Classes:

H02K1/22; H02K1/27; H02K21/16; H02K29/00; H02K1/14; (IPC1-7): H02K21/16; H02K1/14; H02K1/22; H02K29/00

Foreign References:

JP2002153033A	2002-05-24
JP2000228890A	2000-08-15
JP2003284274A	2003-10-03
JP2003199273A	2003-07-11

Other References: