WO2018224091A1 - Rotor pour moteur électrique, moteur électrique, et procédé de fabrication d'un moteur électrique - Google Patents

Rotor pour moteur électrique, moteur électrique, et procédé de fabrication d'un moteur électrique Download PDF

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Publication number
WO2018224091A1
WO2018224091A1 PCT/DE2018/100525 DE2018100525W WO2018224091A1 WO 2018224091 A1 WO2018224091 A1 WO 2018224091A1 DE 2018100525 W DE2018100525 W DE 2018100525W WO 2018224091 A1 WO2018224091 A1 WO 2018224091A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
unit
units
laminations
electric motor
Prior art date
Application number
PCT/DE2018/100525
Other languages
German (de)
English (en)
Inventor
Peter Schwanemann
Carsten Angrick
Matthias Gramann
Wolfgang Reik
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2018224091A1 publication Critical patent/WO2018224091A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors
    • 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
    • H02K2213/12—Machines characterised by the modularity of some components

Definitions

  • the present invention relates to a rotor for an electric motor, the
  • Electric motor and a method for producing the electric motor.
  • Synchronous machine rotors all when used together with a kind Statorblechrough and at the same air gap, be kept. However, since this reduces the number of pieces per sheet cut, this can lead in particular to an increased price of the final product.
  • the object of the invention is therefore to achieve the highest possible fulfillment of customer-specific requirements in the construction of an electric motor with the smallest possible number of different laminations.
  • the rotor according to the invention for an electric motor comprises at least two rotor units, each rotor unit being suitable separately for implementing a respective electrodynamic operating principle. This means every rotor unit could be used alone in a rotor of an electric motor, each provided with corresponding rotor windings. In this sense is in one
  • Embodiment one of the at least two rotor units suitable for use in a permanent magnet synchronous rotor or an electrically excited synchronous rotor or a synchronous reluctance rotor or a switched reluctance rotor or an asynchronous cage rotor or asynchronous slip ring rotor.
  • each of the rotor units is made of laminations, wherein the laminations are coordinated.
  • This tuning can in particular consist in that the laminations for two or more, preferably for all, the at least two rotor units with a modular design
  • Sheet metal stamping tool can be produced because, for example, a
  • Base contour for the laminations of the two or more rotor units is the same, and only a partial use of the sheet metal stamping tool must be replaced to illustrate a difference between the laminations for different rotor units.
  • Such a vote may, for example, in terms of
  • Recesses in the laminations for the different rotor units are made.
  • the recesses in the laminations lead to recesses in the rotor units formed from the laminations.
  • the recesses in the rotor units can improve the interaction of the rotor units in a rotor according to the invention and / or facilitate the assembly of a rotor according to the invention from the rotor units.
  • a first rotor unit of the at least two rotor units may be suitable for use in a separately excited synchronous machine
  • a second rotor unit of the at least two rotor units may be suitable for use in a permanent-magnet synchronous machine.
  • recesses are provided for a rotor winding both in the first rotor unit and in the second rotor unit. In this way, it is possible to make do with a smaller number of different sheet metal cuts, or the required sheet metal cuts can be made with only a slight change to the sheet metal stamping tool, such as replacement of a part insert, as already mentioned. Furthermore, this can be used to guide the rotor winding through the first rotor unit and the second rotor unit.
  • winding heads can be guided along an outer rotor surface instead of being external only, as would otherwise be required the first rotor unit, which in turn would require a corresponding distance between the lamination cuts for the first rotor unit and the second rotor unit and thus a larger stator length.
  • the rotor winding also excites in the second, basically permanently excited, rotor unit and thus causes an additional field-amplifying effect in the second rotor unit, in the second rotor unit other than high-remanent permanent magnets commonly used in rotor designs without off-axis windings, for example NdFeB low-remanence magnets, such as hard ferrite, are used.
  • NdFeB low-remanence magnets such as hard ferrite
  • the laminations for the first rotor unit to be similar to the laminations for the second rotor unit, the second rotor unit carries permanent magnets.
  • a first rotor unit may be suitable for use in a synchronous reluctance rotor, and a second rotor unit may be suitable for use in a permanent-magnet rotor.
  • at least one flow barrier of the first rotor unit is constructed such that a magnetic field is not short-circuited at the transition from the first rotor unit to the second rotor unit.
  • An inventive electric motor is characterized by a rotor according to the invention.
  • the stator of the electric motor can likewise be produced from sheet metal sections, in particular from sheet metal sections of predefined length.
  • An inventive method for producing an electric motor is characterized in that a rotor of the electric motor is composed of at least two rotor units, each rotor unit is separately suitable for implementing a respective electrodynamic principle of action.
  • Each rotor unit is composed of a plurality of laminations. The laminations are preferably matched in shape and are combined with a modular
  • Sheet metal punching tool made. There is one all sheet metal cuts
  • Figure 1 shows an embodiment of a rotor according to the invention.
  • the rotor 1 is an exploded view of a rotor 1 according to the invention.
  • the rotor 1 according to the invention consists in the embodiment shown of a first rotor unit 1 1 and a second rotor unit 12, which are arranged successively along an axis 5 of the rotor 1.
  • the first rotor unit 1 1 and also the second rotor unit 12 have recesses 2 for a rotor winding 3.
  • the windings 31 of rotor windings 3 are shown, the rotor windings 3 run in this embodiment through the recesses 2 of both the first rotor unit 1 1 and the second rotor unit 12, which for reasons of
  • the first rotor unit 1 1 taken alone and provided with corresponding windings through the
  • the rotor 1 comprises at least two rotor units, specifically the rotor units 1 1 and 12, and the recesses 2 in the second rotor unit 12 have the following advantages: First, the first rotor unit 1 1 and the second rotor unit 12 can be composed of coordinated sheet metal sections , preferably being
  • Differences between the laminations for the first rotor unit 1 1 and the second rotor unit 12 can be represented by minor modifications to the sheet metal stamping tool for producing the laminations, such as the change of a
  • the rotor windings 3 can be guided through the recesses 2 of both the first rotor unit 1 1 and the second rotor unit 12. Without recesses 2 in the second rotor unit 12 would have a winding head of the windings for the first rotor unit 1 1 in the shown configuration between the first rotor unit 1 1 and the second rotor unit 12, which would require additional space between the first rotor unit 1 1 and the second rotor unit 12 so that the rotor 1 would extend overall and thus in turn a longer stator for a corresponding electric motor would require. Also, the assembly of the rotor

Abstract

L'invention concerne un rotor (1) de moteur électrique, composé d'au moins deux unités de rotor (11, 12) qui sont appropriées pour des principes de fonctionnement électrodynamique différents. Le rotor (1) peut être composé de découpes de tôle qui sont configurées de telle manière qu'une combinaison des unités de rotor (11, 12) à des principes de fonctionnement différents se trouve facilitée. Il est en particulier possible de ménager dans chaque unité de rotor (11, 12) des évidements (2) qui guident un enroulement de rotor (3) commun aux deux unités de rotor (11, 12). Les découpes de tôle des unités de rotor différentes (11, 12) peuvent présenter une forme de base commune, les différences entre les découpes de tôle des unités de rotor différentes (11, 12) peuvent être obtenues par l'utilisation d'inserts partiels différents d'un outil modulaire de découpage de tôle.
PCT/DE2018/100525 2017-06-06 2018-05-30 Rotor pour moteur électrique, moteur électrique, et procédé de fabrication d'un moteur électrique WO2018224091A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017112402.0 2017-06-06
DE102017112402 2017-06-06

Publications (1)

Publication Number Publication Date
WO2018224091A1 true WO2018224091A1 (fr) 2018-12-13

Family

ID=62599406

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2018/100525 WO2018224091A1 (fr) 2017-06-06 2018-05-30 Rotor pour moteur électrique, moteur électrique, et procédé de fabrication d'un moteur électrique

Country Status (1)

Country Link
WO (1) WO2018224091A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021110196A1 (fr) 2019-12-03 2021-06-10 Schaeffler Technologies AG & Co. KG Système d'entraînement électrique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3609750A1 (de) * 1986-03-22 1987-09-24 Bosch Gmbh Robert Kombinierte synchron-asynchronmaschine
US5747909A (en) * 1996-03-14 1998-05-05 Ecoair Corp. Hybrid alternator
EP0923186A2 (fr) * 1997-10-29 1999-06-16 Fujitsu General Limited Moteur électrique du type à aimants permanents
CN201466928U (zh) * 2009-06-02 2010-05-12 上海电机学院 Halbach并列转子混合励磁同步电机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3609750A1 (de) * 1986-03-22 1987-09-24 Bosch Gmbh Robert Kombinierte synchron-asynchronmaschine
US5747909A (en) * 1996-03-14 1998-05-05 Ecoair Corp. Hybrid alternator
EP0923186A2 (fr) * 1997-10-29 1999-06-16 Fujitsu General Limited Moteur électrique du type à aimants permanents
CN201466928U (zh) * 2009-06-02 2010-05-12 上海电机学院 Halbach并列转子混合励磁同步电机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021110196A1 (fr) 2019-12-03 2021-06-10 Schaeffler Technologies AG & Co. KG Système d'entraînement électrique

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