[go: up one dir, main page]

WO2016062813A1 - Dispositif stator pour un moteur électrique et utilisation dudit dispositif - Google Patents

Dispositif stator pour un moteur électrique et utilisation dudit dispositif Download PDF

Info

Publication number
WO2016062813A1
WO2016062813A1 PCT/EP2015/074502 EP2015074502W WO2016062813A1 WO 2016062813 A1 WO2016062813 A1 WO 2016062813A1 EP 2015074502 W EP2015074502 W EP 2015074502W WO 2016062813 A1 WO2016062813 A1 WO 2016062813A1
Authority
WO
WIPO (PCT)
Prior art keywords
windings
winding
assemblies
contact
central axis
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2015/074502
Other languages
German (de)
English (en)
Inventor
Stefan Losch
Wolfgang Meyer
Sebastian METZLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebm Papst St Georgen GmbH and Co KG
Original Assignee
Ebm Papst St Georgen GmbH and 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 Ebm Papst St Georgen GmbH and Co KG filed Critical Ebm Papst St Georgen GmbH and Co KG
Priority to DE112015004844.8T priority Critical patent/DE112015004844A5/de
Publication of WO2016062813A1 publication Critical patent/WO2016062813A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/09—Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations

Definitions

  • Stator device for an electric motor
  • the present invention relates to a stator device for an electric motor according to the preamble of the main claim. Furthermore, the present invention relates to a use of such a stator device.
  • stator devices are well known; these have an angle carrier on or on which a plurality of stator windings wound with suitable angle wire are seated. Depending on the realization principle of the electric motor realized with such a stator device, these windings are appropriately connected or connected; Thus, it is known as a typical use of such a generic stator device, the stator device with the windings provided thereon for generating a rotating electrical field set up and beschalte, which in turn with a suitable rotatably mounted around the central axis rotor (as external rotor or inner rotor) cooperates.
  • a typical implementation of a stator device for producing a three-phase rotating field for correspondingly realizing a three-phase motor requires, for example, the connection of the windings in star connection (Y-circuit), alternatively in a triangular circuit, again alternatively in mixed forms of these generic circuit topologies, wherein in particular also several, typically Periodically staggered in the circumferential direction of the windings in a typical three-phase system can be connected in parallel to each other in the circumferential direction.
  • the free wire ends typically realized with the winding connections
  • connection or connection arrangements ensure correct operating power supply to the entire arrangement.
  • stator devices having a larger number of individual windings, approximately twelve or more individually contactable windings on a winding support are not uncommon, but then an electrotechnically and mechanically complex connection structure is formed, which is not only used for purposes such as mechanized or automated production.
  • the object of the present invention is therefore to improve a superordinate stator device for an electric motor, both with regard to its mounting and manufacturability, ie also with regard to the operating characteristics of an electric motor to be realized thereby, in particular to facilitate automated manufacturability, a lower required Space for the contacting of windings, especially in a plurality of windings to realize and the prerequisites tions for a low-vibration or low-fluctuation engine operation in that an effective connection length, that is about a wire length between a connection for power supply to the actual winding, for all windings largely homogenous (or symmetrical) is gleichstroket.
  • stator device having the features of the main claim; advantageous developments of the invention are described in the subclaims. Independent protection in the context of the invention is also claimed for the use of the stator device according to the invention for the realization of an internal or external rotor three-phase and / or polyphase motor, which recognizable or disclosed process characteristics as equally claiming a method invention should apply in the context of the invention.
  • At least two disc or annular electrically conductive terminal groups are assigned to the windings so that these - are provided electrically insulated from each other along an axial direction of the central axis or on the winding support, such as in the manner of a layering or a stacking.
  • connection assemblies formed in the practical realization as metal rings
  • connection assemblies are designed in such a way that they, in particular radially on the inside, in the case of a realization as a ring, ie then on a respective circumferential inner circumference, of respective one of the winding connections (ie approximately the Wire ends) can be contacted, wherein usually and preferably the terminal assemblies (ie about the rings) then realize each pole or phase of a realized motor principle and contact according to the invention is preferably insoluble, such as by (otherwise known) welding with conventional welding tongs od. like. Automatmaschinesmit- Alternatively, a contact-forming connection by soldering or crimping or the like. can be done.
  • the present invention high-grade contact and reliability with simple, contact-safe finish and contactability, since about again the radially inside contacts can be easily achieved with the automation tools, such as a welding gun.
  • the rings should be contacted radially on the outside.
  • a further advantage of this principle according to the invention lies in increased flexibility in adaptation and manufacturability: the number of contacts and thus of the contact connections to be produced is merely determined by the number of windings which, in the preferred application, are simply configurable on the winding support and, Either by suitable design of a respective winding carrier, alternatively by only partial or suitable winding of a winding carrier with the desired number of windings, can be suitably adapted to a particular intended use.
  • the winding connections (wire ends) would advantageously be guided parallel to the respective connection assemblies without crossovers and contacted there, so that the contact reliability is ensured in every configuration with the simplest manufacturability.
  • respective connection modules must be provided.
  • the arrangement is associated with an at least partially hollow cylindrical housing, so that an axis or radially symmetrical arrangement is formed.
  • the housing is then suitably opened at least at one end or provided with supply lines, so that the (ring-shaped or disc-shaped) connection assemblies can be suitably externally contacted.
  • it is also preferred to form the housing for interacting with the terminal assemblies or for holding these assemblies such that a plastic material of the housing (which keeps the terminal assemblies spaced from each other and thus isolated from each other) suitable openings, grooves or Has recesses on which then (eg radially inside an internal rotor) in turn the contact portions can be achieved on the terminal assemblies for connection to the wire ends.
  • contact portions which are further preferably formed approximately in the form of forked or web-shaped projections and further preferably integrally radially on the inside of the disk or ring-shaped terminal assemblies, can in turn simply be punched parts or the like. Assemblies are mass produced and reliably produced, in addition to suitable steel material in particular copper or the like. Metal materials, more preferably coated suitable for improved electrical conduction or contactability, may advantageously be provided.
  • connection sections of these connection assemblies in such a way that along the circumferential direction these contact sections are offset from each other; this in turn, especially when used with a plurality of, for example, twelve or more windings, the risk of unintentional touches or the like. of respective winding wire ends and further facilitate automated contacting, such as by the intervention of welding tongs.
  • this multi-shell-like design so that (typically along the axial direction) cooperating with each other, more preferably interlocking, each other snapping or latching housing shells are formed, which further preferably in the described way between themselves, and in turn, for example, suitable by insulating disks or the like. isolated holding the (flat, annular) terminal assemblies, which in turn then suitable projections or the like.
  • mechanical portions of the Anschlußbau- groups (but possibly also already the above-discussed contact portions) prevent unintentional twisting and correspondingly angularly mutually aligned and correspondingly safe contactable sections are present.
  • the result of the present invention is a stator device which, although suitable for any use, phase and pole numbers and number of turns, but in particular with more than six, preferably more than nine or even more than twelve windings considerable advantages in the problem context described above.
  • the present invention is suitable for applications in automotive or manufacturing technology, where often with mechanical or thermal stress environment is expected, but the invention is not limited to this application context and application.
  • the present invention is in principle independent of a realization of the stator device according to the invention for a rotor realization as an internal or external rotor. Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings; these show in:
  • FIG. 1 is a perspective view of the stator device according to a first preferred embodiment of the present invention
  • FIG. 2 shows a circuit diagram for clarifying the interconnection of the windings in the embodiment of Figure 1 as a triangular circuit with four parallel windings.
  • 3 shows a connection and winding diagram for the windings according to FIGS. 1, 2; a plan view of the embodiment of FIG. 1 to illustrate the relative arrangement of contact portions to the individual windings along the axial direction;
  • FIG. 6 are perspective views (FIG. 6 thereof cut away) for illustrating the structure and the layered arrangement of the terminal assemblies associated with the respective terminal polarities;
  • FIG. 7 is an exploded view, exploded along the axial direction, of the embodiment of FIG. 1 with the sequence of individual assemblies prior to assembly thereof;
  • FIG. 7a is a detailed view of a one-piece connection ring as a connection assembly for the realization of a connection polarity associated contacts in the embodiment of FIG. 7;
  • Fig. 8 is a perspective view similar to Figure 7 with almost completely assembled assemblies with only shown removed cover portion of the housing.
  • FIG. 9 is a perspective view of the stator device according to a second embodiment of the present invention for an external rotor;
  • FIG. 10 an exploded view of the second exemplary embodiment with the sequence of the rings or individual assemblies prior to their mounting in the stator body according to FIG. 9;
  • Fig. 1 shows a perspective view of the (fully assembled) stator device for an internal rotor electric motor according to a first embodiment of the present invention.
  • twelve single windings referred to in the diagram representations of Figures 2 and 3 with the numbers 1 to 12, are arranged in a circular shape for the realization of the illustrated 12-pole stator device, wherein the windings each on a (not in Detail shown to be generally known) stator and Joch- blechanowski are provided and in particular the perspective view of Figure 1 then each winding associated, inner pole pieces 30 for cooperation with a (not shown) inside running rotor is formed;
  • This rotor is to be mounted rotatably about an axis of rotation which corresponds to the center or symmetry axis of the device according to FIG.
  • Figures 2 and 3 illustrate in the diagram that the windings 1 to 12 with a three-phase rotating field applied to terminals U, V and W, respectively, are applied, wherein in the manner shown in Fig. 2 and Fig. 3, four of the Single windings in parallel circuit form a branch of the delta connection shown and, along the motivationsrich- tion of the bobbin 20 in Fig. 1, the respective parallel-connected windings are nested according to their numbering in the circumferential direction.
  • the present invention according to the embodiment shown now allows the individual contacting of each of the windings 1 to 12, (more precisely, the contacting of a respective end wire end of the winding wire of the respective windings), so that first 24 wire ends are contacted.
  • connection assemblies in the form of connection rings (in the form of connection assemblies) held in the housing 22 aligned with the coil support 20 ensure that in addition to the reliable, contact-proof and, in particular, cross-over-avoiding, individual contacting, the contactors shown in FIG 2 or Fig. 3 shown nested parallel circuit can be effected.
  • a wire section inserted or projecting into the open region of a contact section 24 would be electrically contacted by welding inwardly by electrodes engaging on the inside of a contact section and connected inseparably.
  • FIGS. 5, 6 show a first variant on the one hand and FIGS. 7, 8 show a different variant on the other hand - Possibilities to realize these contact portions 24 by means of the mentioned contact rings as connection assemblies.
  • the respective, fork-shaped projecting contact sections 24 are projections of radially encircling metallic rings 26, wherein the marking with the letters U, V, W in conjunction with the respective terminal assembly rings 26 the assignment to the polarity shown clarifies. More specifically, and preferably realized as a stamped ring formed integrally from a steel material (or copper) (see also Fig.
  • each of these three rings 26U, 26V and 26W is provided with a number of inwardly projecting contact portions, so that one of a respective one of the windings harnesselleer (ie, in sections parallel to the axial direction of the central axis) guided lead wire in the associated contact section opens and there in the manner described by welding (alternatively, for example, by crimping, soldering or the like.) Can be contacted electrically and mechanically ,
  • the three rings 26i (U, V, W) are for this purpose, as shown in the sectional view of Fig.
  • FIGS. 7, 7a and 8 are analogous to the embodiment of FIGS.
  • FIG. 7a discloses in the form of a like the contact portions 24 integrally molded central contact portion 38 an efficient way to contact central terminal contacts for the individual phases U, V, W.
  • a central contact portion 38 is umknick- or bendable in a direction parallel to the axial direction in the manner of an extended web or finger-shaped configuration (yes, Fig. 7a represents the radial view) so far so the section 38 vertically to the plane of the figure would be bent, so that the vertical contact portions 38 shown in Figures 5, 6 and 7, 8 arise in the assembled state. As seen in this respect approximately the perspective view of FIG.
  • these sections protrude through a respective opening or space of the insulator assembly (consisting of housing shells 32, 30 and the intermediate insulator rings 28), wherein the central contact portion 38, insofar as the functionality of the contact portions 24 realizing, even a fork portion 40 has to attach an associated winding wire end here;
  • the outer free end of the section 38 can be connected to plug contacts 42, 44 or 46 (cf., Fig. 1 and Fig. 4), so far as to enable the external contacting of the assembled assembly by suitable upstream control electronics.
  • the assemblies 42, 44, 46 can be referred to as be realized simple punched parts, which are then connected by suitable welding methods with the contact portions 38 contact-safe.
  • FIGS. 9 to 11 illustrate a second exemplary embodiment of the present invention, wherein here a stator body (stator main body) 50, again designed as a 12-pole and to be wound in polyphase, is designed to cooperate with a rotor designed as an external rotor. Accordingly, the assembly 50 in the inner (hub side) area, bounded by a cylindrical wall 60, a receiving space for to be coated, annular assemblies 52-58, which, again analogous to the inventive concept and illustrated in the first embodiment about the Fig. 7, the Contacting optimized. Specifically, as the exploded perspective views of FIGS. 10 and 11 illustrate, contact rings for different phases of the winding with insulating intermediate rings 56 change, wherein in the second exemplary embodiment and according to FIG.
  • FIG - on the side a first contact ring 52S is inserted into the body 50, thereon a first plastic ring 56 formed approximately from a plastic material, axially followed again by a metallic ring 52U, a further insulation ring 56, on which in turn another contact ring 52W, an insulation ring 56 , a contact ring 52V and an overhead cover ring 58.
  • This layer assembly fills the area enclosed by the wall 60, and the respective metallic contact rings 52S, 52U, 52W and 52V are respectively provided with contact portions 54 which are staggered in respective lengths , are dimensioned so that a front, approximately suitable for wire bonding end of such a contact portion with a suitably formed in the wall 60 groove 62 is aligned.
  • This embodiment realized in structurally simple, manufacturing elegant and highly reliable manner advantages of the present invention, namely a simple and reliable contact wiring, the avoidance of crossovers and a potentially automatable manufacturability of the individual annular conductor sections, which in turn in the embodiment shown by the respective Slices 56 are electrically isolated from each other. Also in this embodiment, the number of poles, number of slots, interconnection of the windings, etc. is purely exemplary, corresponding to the selected number of (conductive) rings.
  • a stator device can thus be realized which, in a very compact and space-saving manner, rests axially on a winding carrier, in the simplest case is flush with the latter on the casing side and thus does not protrude radially.
  • the terminal assemblies designed as preferred metal rings in the context of a multi-part, layered housing assembly not only a mechanically stable (and thus favorable for vibration-prone and other polluted environments) attachment and embedding allows, the arrangement allows a simple, automatable production with the greatest possible electrical Contact security, since according to the underlying object by the axially aligned assignment of the respective contact portions to a respective winding a potentially disadvantageous branching, overlapping, touching or the like. Effective structurally prevented.
  • the present invention is not limited to the illustrated embodiments of a stator for internal rotor or for an external rotor, but can both the number of windings, as on their interconnection (such as star-shaped, with other parallel circuits or with a completely different, even individually externally controlled assignment) be realized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

Dispositif stator pour un moteur électrique, comportant une pluralité d'enroulements (1, 2, 3, 4, 5, 6, 7, 8,9, 10, 11, 12) disposés sur un support d'enroulements, destinés à coopérer, en vue de faire fonctionner le moteur électrique, avec un rotor monté rotatif par rapport au support d'enroulements, autour d'un axe central (26), s'étendant parallèlement les uns aux autres et à l'axe central et disposés de préférence le long d'un tracé en arc de cercle, lesdits enroulements étant conçus pour être connectés électriquement, de préférence individuellement, au moyen de connexions d'enroulement, en particulier au moyen des extrémités libres d'un fil d'enroulement. Selon l'invention, au moins deux blocs de connexion (26i; 36i) électroconducteurs, annulaires et/ou en forme de disque sont associés aux enroulements de manière telle que lesdits blocs sont situés, électriquement isolés les uns des autres, sur une direction axiale de l'axe central sur ou contre le support d'enroulements de façon telle que les connexions d'enroulement de la pluralité des enroulements présentant la même polarité électrique de connexion (U; V; W) peuvent être connectées avec l'un des blocs de connexion associés à la polarité de connexion pour l'interconnexion externe commune, pour former un contact, de préférence radialement du côté interne ou du côté externe et/ou à demeure.
PCT/EP2015/074502 2014-10-22 2015-10-22 Dispositif stator pour un moteur électrique et utilisation dudit dispositif Ceased WO2016062813A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112015004844.8T DE112015004844A5 (de) 2014-10-22 2015-10-22 Statorvorrichtung für einen Elektromotor und Verwendung einer solchen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014115379.0 2014-10-22
DE102014115379.0A DE102014115379A1 (de) 2014-10-22 2014-10-22 Statorvorrichtung für einen Elektromotor und Verwendung einer solchen

Publications (1)

Publication Number Publication Date
WO2016062813A1 true WO2016062813A1 (fr) 2016-04-28

Family

ID=54557370

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/074502 Ceased WO2016062813A1 (fr) 2014-10-22 2015-10-22 Dispositif stator pour un moteur électrique et utilisation dudit dispositif

Country Status (2)

Country Link
DE (2) DE102014115379A1 (fr)
WO (1) WO2016062813A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108808929A (zh) * 2018-08-30 2018-11-13 珠海格力电器股份有限公司 用于电机定子的绝缘骨架、定子、电机和家用电器
CN111247717A (zh) * 2018-01-30 2020-06-05 依必安-派特圣乔根有限责任两合公司 具有接线端盘的电动机用定子装置以及定子装置的用途
US11515743B2 (en) 2018-11-29 2022-11-29 Milwaukee Electric Tool Corporation Motor winding design for an electric motor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018125950A (ja) * 2017-01-31 2018-08-09 日本電産株式会社 モータ及びそれを備えた送風装置
DE102020110651B4 (de) 2020-04-20 2021-11-04 Schaeffler Technologies AG & Co. KG Elektrische Kontaktierung eines Stators einer elektrischen Maschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06233483A (ja) * 1993-01-29 1994-08-19 Honda Motor Co Ltd ステータに於けるコイル巻線の結線構造
DE102004050374A1 (de) * 2004-10-15 2006-04-27 Minebea Co., Ltd. Elektrische Maschine, insbesondere Gleichstrommotor
DE112011100325T5 (de) * 2010-03-03 2012-10-31 Nidec Corporation Sammelschieneneinheit und Motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06233483A (ja) * 1993-01-29 1994-08-19 Honda Motor Co Ltd ステータに於けるコイル巻線の結線構造
DE102004050374A1 (de) * 2004-10-15 2006-04-27 Minebea Co., Ltd. Elektrische Maschine, insbesondere Gleichstrommotor
DE112011100325T5 (de) * 2010-03-03 2012-10-31 Nidec Corporation Sammelschieneneinheit und Motor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111247717A (zh) * 2018-01-30 2020-06-05 依必安-派特圣乔根有限责任两合公司 具有接线端盘的电动机用定子装置以及定子装置的用途
CN108808929A (zh) * 2018-08-30 2018-11-13 珠海格力电器股份有限公司 用于电机定子的绝缘骨架、定子、电机和家用电器
CN108808929B (zh) * 2018-08-30 2024-06-21 珠海格力电器股份有限公司 用于电机定子的绝缘骨架、定子、电机和家用电器
US11515743B2 (en) 2018-11-29 2022-11-29 Milwaukee Electric Tool Corporation Motor winding design for an electric motor
US12003137B2 (en) 2018-11-29 2024-06-04 Milwaukee Electric Tool Corporation Motor winding design for an electric motor
US12388302B2 (en) 2018-11-29 2025-08-12 Milwaukee Electric Tool Corporation Electric motor including windings having crossovers

Also Published As

Publication number Publication date
DE102014115379A1 (de) 2016-04-28
DE112015004844A5 (de) 2017-07-06

Similar Documents

Publication Publication Date Title
EP1748534B1 (fr) Stator pour moteurs électriques comprenant un système d'interconnexion d'enroulement
EP1810388B1 (fr) Moteur electrique
EP3895282B1 (fr) Stator, composant de raccordement et machine électrique
EP3078099B1 (fr) Stator pour moteur à courant continu à commutation électronique
WO2014128287A2 (fr) Moteur électrique, notamment d'un composant de véhicule
WO2016062813A1 (fr) Dispositif stator pour un moteur électrique et utilisation dudit dispositif
DE102012024581A1 (de) Elektromotor mit einem Stator und Verfahren zur Herstellung eines Elektromotors
EP3170245B1 (fr) Stator d'un moteur électrique
EP3017527B1 (fr) Moteur à commutation électronique
DE202015008207U1 (de) Stator eines Elektromotors sowie Schalteinheit hierfür
EP3824528B1 (fr) Moteur électrique comprenant une unité de câblage et procédé de réalisation d'un moteur électrique comprenant une unité de câblage
DE102013111868A1 (de) Stator für einen Elektromotor
DE102022107057A1 (de) Motor
EP1705775B1 (fr) Stator pour machine électrique
DE202005016915U1 (de) Elektromotor
WO2019149475A1 (fr) Système de stator muni d'une plaque d'extrémité de connexion pour moteur électrique et utilisation dudit système de stator
WO2020083559A1 (fr) Pompe comprenant un moteur électrique ayant un unité de barres collectrices compact
EP3824530B1 (fr) Moteur électrique comprenant une unité de câblage
EP3192152B1 (fr) Segment de bobinage pour l'enroulement de bobines statoriques d'un moteur électrique
WO2020015856A1 (fr) Moteur électrique comprenant une unité de câblage et procédé de réalisation d'un moteur électrique comprenant une unité de câblage
EP1278288A2 (fr) Moteur à rotor extérieur
DE102021004542A1 (de) Elktromotor mit einer Verschaltungseinheit und einem Stator sowie Verfahren zur Herstellung eines solchen Elektromotors
WO2017162360A1 (fr) Dispositif d'entraînement

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: 15797022

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 112015004844

Country of ref document: DE

REG Reference to national code

Ref country code: DE

Ref legal event code: R225

Ref document number: 112015004844

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15797022

Country of ref document: EP

Kind code of ref document: A1