Title:
ELECTRIC MOTOR WITH PERMANENT MAGNET ROTOR
Document Type and Number:
WIPO Patent Application WO/2011/048581
Kind Code:
A3
Abstract:
An electric motor for lifts and the like comprises a rotor (11) mounted so as to be rotatable relative to the stator (3) with a cylindrical wall facing the substantially cylindrical surface of the stator. Permanent magnets (21, 21') are fixed to the substantially cylindrical wall of the rotor (11) and are spaced from the substantially cylindrical surface of the rotor (11) by a gap. The permanent magnets (21, 21') are fixed to the substantially cylindrical wall of the rotor (11) by means of a form fit, for example, a dovetail joint, and are inserted in grooves (17, 17') formed integrally in the rotor body (11).
Inventors:
GIORDANINO LORENZO (IT)
GIRARDI CHRISTIAN (IT)
GIRARDI CHRISTIAN (IT)
Application Number:
PCT/IB2010/054804
Publication Date:
July 14, 2011
Filing Date:
October 22, 2010
Export Citation:
Assignee:
SICOR SPA (IT)
GIORDANINO LORENZO (IT)
GIRARDI CHRISTIAN (IT)
GIORDANINO LORENZO (IT)
GIRARDI CHRISTIAN (IT)
International Classes:
H02K1/27; B66B11/04
Domestic Patent References:
| WO2007074036A1 | 2007-07-05 |
Foreign References:
| US5760520A | 1998-06-02 | |||
| US4954736A | 1990-09-04 | |||
| EP0569594A1 | 1993-11-18 | |||
| JP2006353063A | 2006-12-28 | |||
| FR2918361A1 | 2009-01-09 | |||
| US20020171305A1 | 2002-11-21 | |||
| US6734596B1 | 2004-05-11 |
Attorney, Agent or Firm:
PROVVISIONATO, Paolo (Piazza di Porta Mascarella 7, Bologna, IT)
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