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1. WO2020108921 - IMPROVED PERMANENT MAGNET MOTOR/GENERATOR

Publication Number WO/2020/108921
Publication Date 04.06.2020
International Application No. PCT/EP2019/080010
International Filing Date 04.11.2019
IPC
H02K 21/24 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
21Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
12with stationary armatures and rotating magnets
24with magnets axially facing the armatures, e.g. hub-type cycle dynamos
H02K 1/27 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
H02K 1/30 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
28Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
30using intermediate parts, e.g. spiders
H02K 7/14 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
14Structural association with mechanical loads, e.g. with hand-held machine tools or fans
CPC
H02K 1/2793
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2793Rotor axially facing stator
H02K 1/30
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
28Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
30using intermediate parts, e.g. spiders
H02K 21/24
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
21Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
12with stationary armatures and rotating magnets
24with magnets axially facing the armatures, e.g. hub-type cycle dynamos
H02K 2201/03
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
2201Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
03Machines characterised by aspects of the air-gap between rotor and stator
H02K 7/14
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
14Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Applicants
  • ATLAS TECHNOLOGIES HOLDING B.V. [NL]/[NL]
Inventors
  • JANSSEN, Wiebe
  • PETERS, Gilbert
  • SMULDERS, Patrick
  • VORSTER, Christiaan
Agents
  • EP&C
Priority Data
202207827.11.2018NL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED PERMANENT MAGNET MOTOR/GENERATOR
(FR) MOTEUR/GÉNÉRATEUR À AIMANT PERMANENT AMÉLIORÉ
Abstract
(EN)
The invention relates to a permanent magnet motor/generator (200) showing a stationary central shaft, the motor/generator showing a rotation axis (102), a first side (A) and a second side (B), the first side and the second side axially displaced with respect to each other, the motor/generator comprising a stator (104+114) comprising the central shaft, the stator comprising a multitude of electromagnets (116), the motor/generator having a first rotor (106+108) rotatable with respect to the stator using one or more bearings (110, 112), the first rotor having an outer diameter larger than the outer diameter of the stator, the motor/generator comprising a multitude of permanent magnets (118, 120), the first rotor during load conditions deforming and/or tilting, characterized in that the motor/generator comprises a second rotor (230+232) comprising the permanent magnets, the second rotor coupled to the first rotor such that they rotate together, and the second rotor connected to the first rotor close to the axis, as a result of which under load conditions the deformation and/or tilt of the second rotor is less than the deformation and/or tilt of the first rotor. When used, for example, as an in-wheel motor for a car, the air gap between stator and rotor shows improved stability under load, the load for example resulting from cornering of the car.
(FR)
L'invention concerne un moteur/générateur à aimant permanent (200) présentant un arbre central fixe, le moteur/générateur présentant un axe de rotation (102), un premier côté (A) et un second côté (B), le premier côté et le second côté étant déplacés axialement l'un par rapport à l'autre, le moteur/générateur comprenant un stator (104 +114) comprenant l'arbre central, le stator comprenant une multitude d'électroaimants (116), le moteur/générateur ayant un premier rotor (106 +108) pouvant tourner par rapport au stator à l'aide d'au moins un palier (110, 112), le premier rotor ayant un diamètre extérieur supérieur au diamètre extérieur du stator, le moteur/générateur comprenant une multitude d'aimants permanents (118, 120), le premier rotor pendant les conditions de charge se déformant et/ou s'inclinant, caractérisé en ce que le moteur/générateur comprend un second rotor (230 +232) comprenant les aimants permanents, le second rotor étant couplé au premier rotor de sorte qu'ils tournent ensemble et le second rotor étant relié au premier rotor à proximité de l'axe, moyennant quoi, dans des conditions de charge, la déformation et/ou l'inclinaison du second rotor est inférieure à la déformation et/ou à l'inclinaison du premier rotor. Lorsqu'il est utilisé, par exemple, comme moteur-roue pour une voiture, l'entrefer entre le stator et le rotor présente une stabilité améliorée sous charge, la charge obtenue, par exemple, lorsque la voiture prend un virage.
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