WO2022171222A1 - Moteur à commande électronique doté d'un rotor externe à aimant permanent et d'un stator, qui comporte des enroulements de dents unique commutables librement - Google Patents

Moteur à commande électronique doté d'un rotor externe à aimant permanent et d'un stator, qui comporte des enroulements de dents unique commutables librement Download PDF

Info

Publication number
WO2022171222A1
WO2022171222A1 PCT/DE2021/100690 DE2021100690W WO2022171222A1 WO 2022171222 A1 WO2022171222 A1 WO 2022171222A1 DE 2021100690 W DE2021100690 W DE 2021100690W WO 2022171222 A1 WO2022171222 A1 WO 2022171222A1
Authority
WO
WIPO (PCT)
Prior art keywords
electromagnets
stator
permanent magnets
blocks
external rotor
Prior art date
Application number
PCT/DE2021/100690
Other languages
German (de)
English (en)
Inventor
Ludger Sommer
Original Assignee
Mechtronic GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mechtronic GmbH filed Critical Mechtronic GmbH
Priority to DE112021007063.0T priority Critical patent/DE112021007063A5/de
Publication of WO2022171222A1 publication Critical patent/WO2022171222A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2791—Surface mounted magnets; Inset magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators

Definitions

  • Electric motors are regularly defined by the type of excitation of the magnetic field and the position of the stator in relation to the rotor. Motors with an externally excited rotor and a multiphase-fed stator are structurally problematic, complex and expensive to manufacture.
  • An external rotor is characterized in that the stationary part of the motor (stator) is inside, while the moving part (rotor) rotates around its axis.
  • These machines are used as wheel drives, especially for electric vehicles without gear ratios. A high torque at a low speed is required for this purpose. The strong magnetic field required for this is achieved by a relatively high number of windings.
  • each phase winding is connected to one or more switches and a power source for selectively energizing the phase winding.
  • US Pat. No. 6,762,525 proposes an improvement in the magnetic field by means of a cascaded arrangement of permanent magnets.
  • Each segment of the stator electromagnet includes a pair of poles aligned in a direction parallel to the axis of rotation. This allows a plurality of axially adjacent rotor rings centered around an axis of rotation to be arranged around an axis of rotation.
  • the disadvantage of this invention can be seen in the high structural complexity.
  • DE 202013 102 358 proposes a gearless low-speed motor with a versatile, relatively simple structure for different operating modes.
  • the disadvantage of this arrangement is that, particularly in the case of small and slow-running machines with a short stator length or short laminated cores, poor efficiency is caused by the high proportion of copper.
  • EP 159005 discloses the arrangement of phase-wise connected stator poles, which acts on an equal number of opposing rotor poles. Recognizable disadvantage of this invention is that each of the phase connected electromagnets in the Zero crossings of the current cannot use the associated rotor poles for torque generation. This leads to an out-of-round running, higher mechanical stress with a simultaneously low torque.
  • a stator field has a number of stator poles that is identical to the number of phases per magnetic period. According to this, a stator field provided with the winding of one phase faces a magnetic field formed by a pair of poles.
  • the disadvantage of this invention lies in the fact that the switching of an electromagnet without the simultaneous switching of the adjacent electromagnets has disruptive repercussions on the non-switched electromagnets.
  • the invention is based on the object of providing an external rotor in such a way that it provides a high torque with smooth running, with the adjacent electromagnets influencing one another as little as possible.
  • the motor consists of a return ring (1). Permanent magnets (2) are placed in these in such a way that permanent magnets (2) of different polarity are adjacent to each other. Electromagnets (3) are provided opposite the permanent magnets (2), the end of which pointing towards the permanent magnet (2) is referred to as the stator pole (4). Due to the opposite winding direction, adjacent electromagnets (3) have differently polarized stator poles (4). Each electromagnet (3) contains a winding. The number of permanent magnets (2) is always less than the number of electromagnets (3).
  • the motor consists of at least six electromagnets (3), which are always evenly distributed over at least two operating units.
  • An operating unit consists of the electromagnets (3), which are each connected to one another via a common neutral conductor (6).
  • One or more electromagnets (3) per operating unit, which are supplied with the same phase (L) by means of the control electronics, are referred to as block (5).
  • An operating unit has at least 2 electromagnets, which are operated either in a block for phase Li or in two blocks for phases Li and L2. According to the invention, electromagnets (3) can be connected in phase during engine operation and vice versa.
  • Blocks (5) consist of a variable number of electromagnets (3), but at least one.
  • the period of the blocks (5) operated in phase corresponds to the full angle of 360°.
  • the electromagnets (3) are used in a variable number in the zero crossing of the energization via the stator poles (4) assigned to the yoke ring (1) for torque generation.
  • both the number of electromagnets (3) per block (5) and the number of operating units per motor can be changed via the control unit, with the electromagnets being connected to at least two operating units via a common neutral conductor.
  • the number of business units is expressed with the symbol BE
  • the number of blocks (5) per business unit is expressed with the symbol BN. Then the following dependency results:
  • Fig. 1 shows an example of 36 electromagnets (3) arranged around the axis (not shown) of the motor, which 32 permanent magnets (2) face. Overall, they are connected to two operating units via the neutral conductor (6). Each operating unit has the same number of electromagnets (3) and blocks. The operating units are structured identically. In each operating unit, three electromagnets (3) are connected in series to phase LN to block (5) and each operating unit then consists of 6 blocks (5) with 3 electromagnets (3), the blocks (5) having phase Li to L 6 are supplied. The phase distance between the blocks (5) of each operating unit is 60°.
  • electromagnets (3) of the respective operating unit can be connected in series to form a block (5) and vice versa.
  • the electromagnets (3) are supplied with the same phase (L). If there are several electromagnets (3) per block, the phase is in series.
  • the number of electromagnets (3) that are connected to form a block (5) can be changed during operation. For example, it can be increased or decreased by one electromagnet (3) until the minimum number is reached.
  • the number of blocks (5) per operating unit can also be changed during operation.
  • the number of operating units can also be varied during operation via the control electronics.
  • Fig. 1 shows the starting phase of an electric motor according to the invention with 36 electromagnets (3).
  • the electromagnets (3) are connected via two neural conductors (6) in two operating units to form blocks (5) of phases Li - 1. 6 , each block (5) consists of three series-powered electromagnets (3) of the same phase L n .
  • the advantage of the invention is that with a simple winding of the electromagnets (3) and thus little technical production effort, the effective windings of the electromagnets (3) during operation of the motor into blocks (5) of different sizes of the same phase LN according to the premise of torque or efficiency can be switched up or down in series.
  • the forces of the electromagnets (3) act less unilaterally on the axis and the motor runs more smoothly as a result.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

Rotor externe comprenant un stator à l'intérieur et le rotor tournant sur l'extérieur autour de l'axe de moteur. Le rotor externe comporte des aimants permanents (2), le stator comporte des dents, un enroulement unique est enroulé autour de chaque dent et les dents sont reliées en une formation en étoile, c'est-à-dire à un conducteur neutre. Chaque bobine (3) est enroulée à l'opposé par rapport à sa bobine adjacente. Plus de pôles de rotor que de bobines de stator sont prévus. Afin de réduire le couple de crantage, un nombre élevé de pôles de rotor et un nombre élevé différent de dents de stator sont prévus. L'interconnexion des bobines peut être modifiée pendant le fonctionnement, de telle sorte que le nombre d'unités de moteur, le nombre de phases et le nombre de bobines par phase peuvent varier, mais au moins 2 unités de moteur et 2 phases doivent être prévues en tant que minimum. Avec 36 bobines de stator, 2 ou 4 unités de moteur, 6 ou 3 phases et 3 bobines par phase peuvent être prévues.
PCT/DE2021/100690 2021-02-11 2021-08-12 Moteur à commande électronique doté d'un rotor externe à aimant permanent et d'un stator, qui comporte des enroulements de dents unique commutables librement WO2022171222A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112021007063.0T DE112021007063A5 (de) 2021-02-11 2021-08-12 Elektronisch gesteuerter motor mit dauermagnetischem aussenläufer und stator, der freiverschaltbare einzelzahnwicklungen aufweist

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202021100676.5U DE202021100676U1 (de) 2021-02-11 2021-02-11 Anordnung von Statorpolen zu Läuferpolen eines kommutatorlosen Elektromotors
DE202021100676.5 2021-02-11

Publications (1)

Publication Number Publication Date
WO2022171222A1 true WO2022171222A1 (fr) 2022-08-18

Family

ID=74876116

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2021/100690 WO2022171222A1 (fr) 2021-02-11 2021-08-12 Moteur à commande électronique doté d'un rotor externe à aimant permanent et d'un stator, qui comporte des enroulements de dents unique commutables librement

Country Status (2)

Country Link
DE (2) DE202021100676U1 (fr)
WO (1) WO2022171222A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159005A2 (fr) 1984-04-16 1985-10-23 Magnet-Motor Gesellschaft für magnetmotorische Technik mbH Moteur électrique commandé électriquement
DE19507489A1 (de) 1995-03-03 1996-09-19 Thomas Dipl Ing Strothmann Verbesserte Anordnung für elektrische Maschinen mit Fremderregung
US6727668B1 (en) 2002-06-19 2004-04-27 Wavecrest Laboratories, Llc Precision brushless motor control utilizing independent phase parameters
US6762525B1 (en) 2002-04-30 2004-07-13 Wavecrest Laboratories, Llc Cascaded rotary electric motors having axial and radial air gaps
US20100133826A1 (en) * 2009-09-30 2010-06-03 Pedro Luis Benito Santiago Method and apparatus for generating power in a wind turbine
US20110050138A1 (en) * 2009-09-03 2011-03-03 Yi Li Electric Motor and Electric Generator
DE202013102358U1 (de) 2013-05-30 2013-06-11 Sagdakov Electrodrive Ltd. OOO "Electroprivod Sagdakova" Kommutatorloser Elektromotor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159005A2 (fr) 1984-04-16 1985-10-23 Magnet-Motor Gesellschaft für magnetmotorische Technik mbH Moteur électrique commandé électriquement
DE19507489A1 (de) 1995-03-03 1996-09-19 Thomas Dipl Ing Strothmann Verbesserte Anordnung für elektrische Maschinen mit Fremderregung
US6762525B1 (en) 2002-04-30 2004-07-13 Wavecrest Laboratories, Llc Cascaded rotary electric motors having axial and radial air gaps
US6727668B1 (en) 2002-06-19 2004-04-27 Wavecrest Laboratories, Llc Precision brushless motor control utilizing independent phase parameters
US20110050138A1 (en) * 2009-09-03 2011-03-03 Yi Li Electric Motor and Electric Generator
US20100133826A1 (en) * 2009-09-30 2010-06-03 Pedro Luis Benito Santiago Method and apparatus for generating power in a wind turbine
DE202013102358U1 (de) 2013-05-30 2013-06-11 Sagdakov Electrodrive Ltd. OOO "Electroprivod Sagdakova" Kommutatorloser Elektromotor

Also Published As

Publication number Publication date
DE112021007063A5 (de) 2024-02-29
DE202021100676U1 (de) 2021-03-02

Similar Documents

Publication Publication Date Title
DE69100430T2 (de) Synchron-Induktionsmotor mit Doppelstator.
DE69201354T2 (de) Synchronmotor mit zwei dauermagnetischen Läuferteilen.
DE1920351B2 (de) Elektrischer Mehrphasenschrittschaltmotor
DE102016202477B4 (de) Elektrische maschine
DE10060825A1 (de) Einzelstator-Doppelrotor-Elektromotor
DE102004021661A1 (de) Kommutatormotor mit mehreren Feldwicklungsgruppen
DE4305729C2 (de) Dreiphasen-Hybrid-Schrittmotor
DE1941097A1 (de) Magnetische Turbine
DE69921211T2 (de) Elektrische Maschine mit doppelter Erregung, und insbesondere Fahrzeuggenerator
WO1998059407A1 (fr) Commande electrique a palier magnetique
DE102009022061A1 (de) Changiereinrichtung
DE202018004992U1 (de) Elektrischer Universalmotor
DE112016007043B4 (de) Polzahl-verändernde rotierende elektrische maschine und antriebsverfahren für polzahl-verändernde rotierende elektrische maschine
DE2208854B2 (de) Synchronmotor mit einem mehrpoligen permanentmagneten
WO2022171222A1 (fr) Moteur à commande électronique doté d'un rotor externe à aimant permanent et d'un stator, qui comporte des enroulements de dents unique commutables librement
DE60307466T2 (de) Elektrischer Synchronmotor mit konzentrierter Wicklung sowie Verfahren zum Entwickeln desselben
DE69019315T2 (de) Synchronmaschine.
DE202021002723U1 (de) Elektromotor mit Doppler-Effekt
DE202016006158U1 (de) Elektrische Maschine
EP0216202B2 (fr) Moteur électrique
EP1158648B1 (fr) Entrainement de rotation électromagnetique
DE2218193B2 (de) Verfahren zur schnellen Drehrichtungsumkehr eines Einphasen-Induktionsmotors
DE68911905T2 (de) Elektrischer Motor ohne Stromwenderteile mit in der Richtung der Achse aufgestellten Polen und auf demselben Prinzip basierender magnetischer Motor.
DE102018101227A1 (de) Bürsten-Gleichstrommaschine
DE102021113453B4 (de) Elektromotor

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21766110

Country of ref document: EP

Kind code of ref document: A1

DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 112021007063

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21766110

Country of ref document: EP

Kind code of ref document: A1

REG Reference to national code

Ref country code: DE

Ref legal event code: R225

Ref document number: 112021007063

Country of ref document: DE