DC ELECTRIC MOTOR - TOSHIBA TEC KK

Title:

DC ELECTRIC MOTOR

Document Type and Number:

WIPO Patent Application WO/2002/089294

Kind Code:

A1

Abstract:

A DC electric motor, wherein field magnets (26) and (27) are installed on the inner peripheral surface (28a) of a stator core (25) specifying a rotor through-hole (28), a plurality of recesses (31) opened to the rotor through-hole (28) are provided in the stator core (25), the recesses (31) face the magnet ends (26a), (27a), (26b), and (27b) of the field magnets, and the bottom faces (31a) of the recesses (31) are apart from the surfaces (AC) of the magnet ends (26a), (27a), (26b), and (27b) and close to the outer peripheral surfaces (25a) and (25b) of the stator core (25) from the rear surfaces (BD) of the magnet ends (26a), (27a), (26b), and (27b).

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Inventors:

TANAKA MOTOYUKI (JP)
MIYOSHI MASAKI (JP)
NAKAZAWA FUMIKIYO (JP)
SAKURAI OSAMU (JP)
ONO TSUGIYOSHI (JP)

Application Number:

PCT/JP2002/004014

Publication Date:

November 07, 2002

Filing Date:

April 23, 2002

Export Citation:

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Assignee:

TOSHIBA TEC KK (JP)
TANAKA MOTOYUKI (JP)
MIYOSHI MASAKI (JP)
NAKAZAWA FUMIKIYO (JP)
SAKURAI OSAMU (JP)
ONO TSUGIYOSHI (JP)

International Classes:

H02K1/17; H02K23/04; (IPC1-7): H02K1/17; H02K23/04

Foreign References:

EP0895334A2	1999-02-03
JPS58141658A	1983-08-23
JP2000050537A	2000-02-18
JPS60132148U	1985-09-04
JPH0865940A	1996-03-08
JPH01116577U	1989-08-07
JPH09224337A	1997-08-26

Other References: