EMBEDDED-PERMANENT-MAGNET DYNAMOELECTRIC DEVICE

Title:

EMBEDDED-PERMANENT-MAGNET DYNAMOELECTRIC DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/174145

Kind Code:

A1

Abstract:

Provided is an embedded-permanent-magnet dynamoelectric device which can be produced at low cost and exhibits excellent rotor strength. The torque produced by the rotor can be increased without decreasing rotor strength. The embedded-permanent-magnet dynamoelectric device can be stably produced by accurately layering rotor steel plates. The embedded-permanent-magnet dynamoelectric device has individual poles constituted by two permanent magnets, and the permanent magnets for the plurality of poles are embedded inside the rotor. The embedded-permanent-magnet dynamoelectric device also has a rotor (3), the outer circumference of which is communicated with magnet-embedding holes. The magnet-embedding holes are arranged in a reverse V shape. Supplementary processing such as V-processing, boss machining, pin-hole machining or bolt-hole machining is performed in the region of each rotor steel plate constituting the rotor (3) and located between the rotor outer periphery and the inscribed circle of the magnet-embedding holes.

Inventors:

MOCHIDA TOSHIHARU (JP)
TOBA AKIO (JP)
SHIMADA HIROSHI (JP)
NISHIMURA HIROFUMI (JP)
SASAKI NOBUYUKI (JP)

Application Number:

PCT/JP2015/059408

Publication Date:

November 19, 2015

Filing Date:

March 26, 2015

Export Citation:

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Assignee:

FUJI ELECTRIC CO LTD (JP)

International Classes:

H02K1/22; H02K1/27; H02K21/14

Foreign References:

JP2013099047A	2013-05-20
JP2008131813A	2008-06-05
JP2010081754A	2010-04-08
JP2004320989A	2004-11-11
JP2012228101A	2012-11-15

Other References: