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Patent Searching and Data


Title:
ROTOR STRUCTURE AND ROTOR MANUFACTURING METHOD FOR PERMANENT MAGNET TYPE ROTATING ELECTRICAL MACHINE
Document Type and Number:
WIPO Patent Application WO/2014/030547
Kind Code:
A1
Abstract:
A rotor core is arranged inside a stator and has a center axis and rotor slots inside the rotor core parallel to the center axis. A permanent magnet composite body with notches is constructed by adjacently arranging a plurality of permanent magnet pieces inside a respective rotor slot. The permanent magnet composite body inside the rotor slot has a first surface and a second surface that is positioned further away from the stator than the first surface. The notch is arranged on the second surface to prevent a degradation in resistance to demagnetization which is due to the notch.

Inventors:
MUROTA KOHEI (JP)
NAKADA TOHRU (JP)
Application Number:
PCT/JP2013/071457
Publication Date:
February 27, 2014
Filing Date:
August 08, 2013
Export Citation:
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Assignee:
NISSAN MOTOR (JP)
International Classes:
H02K1/27; H02K15/03
Domestic Patent References:
WO2011013209A12011-02-03
WO2012105006A12012-08-09
Foreign References:
JP2011125105A2011-06-23
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
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