Title:
TRANSVERSE FLUX MOTOR AS AN EXTERNAL ROTOR MOTOR AND DRIVE METHOD
Document Type and Number:
WIPO Patent Application WO/2010/048928
Kind Code:
A3
Abstract:
The invention relates to a transverse flux motor comprising at least one stator and at least one rotor. Magnetically active elements of the stator are formed in an annular manner and with a U-shaped inner contour on the stator and the rotor is in the form of a disk or a ring. The rotor comprises magnetically active sections consisting of a soft-magnetic or permanent-magnetic material, that are radially oriented in an annular manner towards at least one front surface of the rotor. The invention also relates to a drive method according to the transverse flux principle, whereby magnetically active sections of at least one disk-type or annular rotor, that are radially oriented in an annular manner towards at least one front surface of the rotor, interact with magnetically active elements having a U-shaped inner contour in an annular manner on at least one stator, in order to rotate the rotor. The aim of the invention is to provide a direct drive based on the transverse flux principle, by which means the direct drive can have a high level of torque and at the same time a weight which is as low as possible, a high level of reliability and an efficiency which is as constant as possible. To this end, a transverse flux motor of the above-mentioned type is provided, in which vertical profiled sections of the U-shaped inner contour are parallel to the axial orientation of the stator, and free ends of the vertical profiled sides of the U-shaped inner contour have poles at a distance from each other. A drive method of the above-mentioned type is also provided, where the magnetically active elements on the stator are at least three ring segments through which different currents pass. Vertical profiled sides of the U-shaped inner contour of the ring segments are parallel to the axial orientation of the stator, and free ends of the vertical profiled sides of the U-shaped inner contour have poles at a distance from each other. During each application of current, the rotor is moved in relation to the stator about a pole in the rotational direction. The rotor is outwardly connected to a rotating motor cage, such that an outer rotor motor is formed. A U-shaped carrier, that is connected to the stator as required, enables the motor to be positioned in another rotational axis.
Inventors:
SCHMIDT MICHAEL (DE)
Application Number:
PCT/DE2009/001492
Publication Date:
September 29, 2011
Filing Date:
October 22, 2009
Export Citation:
Assignee:
LEANTEC MOTOR GMBH & CO KG (DE)
SCHMIDT MICHAEL (DE)
SCHMIDT MICHAEL (DE)
International Classes:
H02K21/24
Foreign References:
| EP1953902A2 | 2008-08-06 |
Other References:
WEH H: "DIE TRANSVERSALFLUSSMASCHINE. THE TRANSVERSE FLUX MACHINE", JAHRBUCH DER SCHIFFBAUTECHNISCHEN GESELLSCHAFT, BERLIN, DE, vol. 86, 1 January 1992 (1992-01-01), pages 68 - 73, XP002043271, ISSN: 0374-1222
Attorney, Agent or Firm:
STEINIGER, Carmen (Chemnitz, DE)
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