EP2837083A2 - Stator en plusieurs parties pour un moteur électrique et moteur électrique correspondant - Google Patents

Stator en plusieurs parties pour un moteur électrique et moteur électrique correspondant

Info

Publication number
EP2837083A2
EP2837083A2 EP13712284.2A EP13712284A EP2837083A2 EP 2837083 A2 EP2837083 A2 EP 2837083A2 EP 13712284 A EP13712284 A EP 13712284A EP 2837083 A2 EP2837083 A2 EP 2837083A2
Authority
EP
European Patent Office
Prior art keywords
stator
projection
recess
segments
segment
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.)
Withdrawn
Application number
EP13712284.2A
Other languages
German (de)
English (en)
Inventor
Christian Bauer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2837083A2 publication Critical patent/EP2837083A2/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a multi-part stator for an electrical machine, which has a plurality of stator segments provided with windings, which in
  • Circumferential direction of the stator are firmly connected to each other.
  • the invention relates to an electrical machine with such a stator.
  • stator either of individual annular blades, which are connected to a laminated core, or from individual stator segments.
  • the stator segments in this respect each form a ring segment of the stator ring or of the stator and, seen in the circumferential direction, must be firmly connected to one another in order to be able to ensure the stability and function of the stator or of the electric machine.
  • the multi-part stator according to the invention with the features of claim 1 has the advantage that can be dispensed with a welded connection and yet an easily manageable stator or stator for mounting in the housing of the electric machine is available. This is inventively achieved in that the stator segments are seen in the circumferential direction positively connected to each other. The positive connection exists insofar in each case between two
  • stator segments which are circumferentially facing each other. Due to the positive connection, on the one hand, a simple assembly of the stator is ensured and, on the other hand, a stable and loadable stator is provided which can also be pressed into the housing of an electrical machine without difficulty.
  • each of the stator segments has a projection on a first peripheral side and a projection on a second peripheral side
  • stator segments are thus asymmetrical in cross-section, wherein they have the projection on one side flank and the recess on the other side flank.
  • all the stator segments of the stator are the same, so that each stator segment can be brought into operative connection with another stator segment of the stator for forming the positive connection in the circumferential direction.
  • the respective recess of a stator segment has a circumferential undercut, which engages behind the projection of the adjacent stator segment. Through the undercut is the secure positive connection in
  • the undercut can be formed for example by a taper of the recess and a broadening of the projection.
  • the projection of a stator element and the recess of the stator element adjacent thereto each form a sliding rear grip seat, which is released or produced by an axial displacement of the stator elements relative to one another.
  • the stator segments are thus designed such that they are axially displaceable relative to one another, wherein means are preferably provided which prevent an axial displacement of stator segments relative to one another in the assembled state of the stator.
  • the means comprise at least one axial stop formed on the stator segments, which allows a further axial displacement of the
  • Stator segments mutually positively prevented. Furthermore, the means can subsequently attachable security elements such as a
  • Circlip which engages in a formed by the stator segments circumferential groove of the stator, and thereby prevents axial displacement have.
  • the recess of the respective stator segment is groove-like and open towards at least one end face of the respective sator segment
  • stator segments must therefore first of all be arranged at a distance from one another before assembly, viewed in the longitudinal direction, and then the projection of one stator segment is inserted axially into the recess of the other stator segment. If the recess is designed to be open towards only one end face, the recess simultaneously provides the previously mentioned axial stop. Alternatively, it is also conceivable to form the recess open towards both end faces of the respective stator segment, and then to provide respective securing means, such as the circlip described above, on both sides of the mounted stator.
  • the projection is web-shaped.
  • Stator segment extends, in addition, in cooperation with the groove-like recess tilting of the stator segments to each other in a simple manner prevented, provided that the size and contour of the projection are adapted to the size and contour of the recess.
  • the respective projection and the respective recess are formed such that adjacent stator segments abut each other at their peripheral sides or may abut each other. As a result of the circumferential abutment of neighboring stator segments, these form a stable stator ring.
  • the recess and the projection are preferably designed such that they interact with one another in a play-like manner
  • the recesses and the projections of the stator elements of the stator are at least substantially complementary to one another.
  • stator elements each have one substantially
  • the longitudinal beam of the T-shape forms the core for a winding provided on the respective stator segment.
  • the rolls are already provided before the joining of the stator segments to the respective stator segment.
  • the electric machine according to the invention with the features of claim 10 has the advantage that the stator is inexpensive and easy to install and in particular in a housing can be pressed.
  • the electric machine is characterized by a multi-part stator, as described above, from. Further advantages and developments are therefore apparent from the above.
  • Figure 2 shows a housing and a stator of the electric machine in one
  • FIG. 3 is a stator of the stator in a simplified
  • Figure 4 is a simplified representation of two adjacent pixels
  • FIG. 5 shows the connection of adjacent stator elements on the basis of a
  • Figure 6 is a detailed view of the positive connection of adjacent
  • Figure 1 shows a simplified longitudinal sectional view of an electric machine 1 for a motor vehicle.
  • the electric machine 1 has a
  • Rotor shaft 2 on which a rotor 3 is arranged rotationally fixed.
  • the rotor 3 is surrounded radially by a stator 4, which is held stationary in a housing 5 shown in FIG.
  • Figure 2 shows the electric machine 1 without rotor shaft 2 and rotor 3 in a perspective exploded view, in which the stator 4 axially
  • stator 4 is formed from a multiplicity of separate stator segments 6, of which only a few are provided with reference numerals for reasons of clarity.
  • the stator elements 6 together form the annular stator 4 and are each provided with an annular washer 13.
  • FIG. 3 shows one of the stator elements 6 in a simplified form
  • the stator 6 has a substantially T-shaped cross-section, wherein in the assembled state, the vertical bar of the T-shaped cross-section with respect to the rotational axis of the radial Rotor is aligned and the horizontal bar forms the outer jacket wall of the stator 6.
  • This stator 6 thus forms a ring segment of the stator 4, so that adjacent stator segments 6 are circumferentially facing each other.
  • the vertical bar essentially serves to receive the waste 13.
  • the stator elements 6 have, as shown in Figure 3 at a first
  • Peripheral side 7 a projection 8 and on the other, opposite peripheral side 9 a recess 10. Under peripheral pages are in the
  • the projection 8 has a substantially circular cross-section such that between the widest point of the projection 8 and the peripheral side
  • the projection 8 spaced from the first peripheral surface 7 forms a broadening.
  • the recess 10 is correspondingly formed such that it has a substantially circular cross-section, wherein the center of the circular cross-section is so far in the stator 6, that the circumferential side 9 towards a taper is formed, which forms an undercut 11 which acts in the circumferential direction ,
  • FIG. 4 shows two adjacent stator segments 6 in a simplified manner
  • the projection 8 and the recess 10 of the respective stator segment 6 are formed such that the projection 8 can be brought into engagement with the recess 10.
  • the recess 10 extends over the entire longitudinal extent of the respective stator segment 6. The recess 10 thus receives a groove-like
  • the protrusion 8 preferably extends over the entire longitudinal extent of the respective stator segment 6 and thus represents a web-shaped formation of the protrusion 8.
  • this configuration of the stator segments 6 makes it possible to mount the stator 4 in a simple manner by one Stator segment is inserted axially with its projection 8 in the recess 10 of the adjacent stator 6.
  • the web-shaped projection 8 and the groove-like recess 10 are expediently formed axially extending on the respective stator element 6.
  • stator segments 6 are pushed into each other only after attaching the respective winding to form the stator 4.
  • stator segments 6 are positively connected to each other, so that seen in the circumferential direction of the stator 4 is fixed and stable.
  • an axial securing device is expediently provided on the front side of the stator 4.
  • This can be provided, for example, each in the form of a securing ring which rests in a groove formed by the stator 6 on its outer shell wall, extending over the entire circumference.
  • the recesses 10 and projections 8 do not extend over the entire longitudinal extent of the respective stator segment 6 and are designed to be open only to one end side and closed to the other end side.
  • an axial stop is provided, which also defines the stator segments 6 axially relative to one another, at least in one direction of displacement.
  • the groove-and-tongue geometry of the form-locking connection 12 formed by the projections 8 and the recesses 10 is, as already mentioned, designed to be play-related, this clearance being during assembly in the motor housing is preferably used up when the stator 4 is pressed into the housing 5.
  • the individual stator segments 6 align themselves in accordance with the shape of the housing 5, wherein they support each other at their opposite circumferential sides 7,8, as described above, thereby forming a stable ring.
  • the form-fitting connection 12 described above enables a positive mounting of the stator segments 6 and thus easy handling of the stator 4 in the further assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Stator (4) en plusieurs parties pour un moteur électrique (1), qui comporte plusieurs segments de stator (6) pourvus d'enroulements (13) et reliés à demeure les uns aux autres, vus dans la direction périphérique du stator (4). Ledit stator est caractérisé en ce que les segments de stator (6) sont reliés les uns aux autres, vus dans la direction périphérique, par complémentarité de forme. La présente invention concerne par ailleurs un moteur électrique.
EP13712284.2A 2012-04-05 2013-03-27 Stator en plusieurs parties pour un moteur électrique et moteur électrique correspondant Withdrawn EP2837083A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210205687 DE102012205687A1 (de) 2012-04-05 2012-04-05 Mehrteiliger Stator für eine elektrische Maschine, elektrische Maschine
PCT/EP2013/056524 WO2013149906A2 (fr) 2012-04-05 2013-03-27 Stator en plusieurs parties pour un moteur électrique et moteur électrique correspondant

Publications (1)

Publication Number Publication Date
EP2837083A2 true EP2837083A2 (fr) 2015-02-18

Family

ID=47997545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13712284.2A Withdrawn EP2837083A2 (fr) 2012-04-05 2013-03-27 Stator en plusieurs parties pour un moteur électrique et moteur électrique correspondant

Country Status (4)

Country Link
EP (1) EP2837083A2 (fr)
CN (1) CN104254962A (fr)
DE (1) DE102012205687A1 (fr)
WO (1) WO2013149906A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021204830A1 (fr) * 2020-04-09 2021-10-14 Robert Bosch Gmbh Noyau feuilleté pour une machine électrique, machine électrique à noyau feuilleté et procédé de fabrication d'une partie principale de stator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013219993A1 (de) * 2013-10-02 2015-04-02 Robert Bosch Gmbh Elektromotor mit einem segmentierten Stator
DE102014211254B4 (de) 2014-06-12 2016-01-14 Schaeffler Technologies AG & Co. KG Stator einer elektrischen Maschine und Verfahren zur Herstellung eines Stators
EP3614529A1 (fr) * 2018-08-23 2020-02-26 Siemens Aktiengesellschaft Segment dentaire individuelle
DE102019107136A1 (de) * 2019-03-20 2020-09-24 Gkn Sinter Metals Engineering Gmbh Klauenpol-Stator für eine Transversalflussmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007141126A1 (fr) * 2006-06-02 2007-12-13 Brose Fahrzeugteile Gmbh & Co. Kg, Würzburg Moteur électrique et procédé de fabrication d'un moteur électrique pour un servomoteur automobile
KR101185353B1 (ko) * 2006-09-21 2012-09-21 엘지전자 주식회사 모터의 스테이터 및 그 제조방법
DE102008050450A1 (de) * 2008-10-08 2010-04-15 DüRR DENTAL AG Stator für einen Außenläufermotor
KR101074939B1 (ko) * 2009-11-23 2011-10-18 뉴모텍(주) 매그메이트를 갖는 권선 프레임 및 이를 포함하는 고정자 코어
CA2794210C (fr) * 2010-03-25 2017-08-22 Gerald K. Langreck Actionneur rotatif a haute acceleration
KR101133922B1 (ko) * 2010-09-08 2012-04-13 주식회사 아모텍 세그먼트형 스테이터의 제조방법 및 그를 이용한 스테이터

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013149906A2 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021204830A1 (fr) * 2020-04-09 2021-10-14 Robert Bosch Gmbh Noyau feuilleté pour une machine électrique, machine électrique à noyau feuilleté et procédé de fabrication d'une partie principale de stator

Also Published As

Publication number Publication date
DE102012205687A1 (de) 2013-10-10
WO2013149906A2 (fr) 2013-10-10
WO2013149906A3 (fr) 2014-06-26
CN104254962A (zh) 2014-12-31

Similar Documents

Publication Publication Date Title
WO2020099048A1 (fr) Dispositif de support conçu pour un rotor d'une machine synchrone à rotor interne à excitation séparée comprenant un anneau de support et un disque en étoile
DE102013217021A1 (de) Bürstenloser Motor, Stator, Herstellungsverfahren für einen Stator und Herstellungsverfahren für einen bürstenlosen Motor
EP2837083A2 (fr) Stator en plusieurs parties pour un moteur électrique et moteur électrique correspondant
EP2965403B1 (fr) Rotor pour moteur à réluctance, procédé de fabrication d'un rotor pour moteur à réluctance, et machine électrique, en particulier moteur à réluctance
DE112015000605T5 (de) Rotor, Verfahren zur Herstellung des Rotors und elektrische Rotationsmaschine mit dem Rotor
EP2913561A1 (fr) Système d'engrenage planétaire motorisé et procédé permettant de relier un moteur à un engrenage planétaire pour fabriquer un agencement moteur-engrenage planétaire
DE19845683A1 (de) Verfahren zur Montage eines Elektromotors
EP3157140A1 (fr) Rotor a couple optimise et petit moteur electrique dote d'un tel rotor
EP3308449B1 (fr) Anneau de stator pour générateur électrique et générateur et éolienne équipé de celui-ci
DE102020122615A1 (de) Drehmomentpassfederkeile für elektrische maschinen
EP2336495B1 (fr) Turbosoufflante de gaz d'échappement
WO2016150683A1 (fr) Stator pour machine électrique
WO2016162137A1 (fr) Ensemble rotor pour un moteur électrique
EP2656484B1 (fr) Machine a flux transversal
EP0412954A1 (fr) Flasque-palier pour un moteur électrique
DE102018210158A1 (de) Baueinheit aus einer elektrischen Maschine und einem Tragelement
EP3482480A1 (fr) Dispositif de fixation d'un moteur électrique et siège
DE102012112044B4 (de) Selbstfixierendes Statorgehäuse
DE102016010224A1 (de) Elektrische Maschine für ein Kraftfahrzeug, Herstellungsverfahren und Stanzwerkzeug
DE102015221974A1 (de) Drehmomentübertragungsvorrichtung für ein Kraftfahrzeug mit einem Gehäuse und einem daran festgelegten Lagerschild
LU102802B1 (de) Nassläuferpumpe
DE102004058349B3 (de) Transportsicherung für eine elektrische Maschine sowie elektrische Maschine
EP1768228B2 (fr) Machine électrique avec fixation ameliorée d'un élément de reflux
AT525718B1 (de) Rotor
WO2018197133A1 (fr) Stator segmenté pour moteur électrique du type à rotor interne

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150105

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150804