WO2018028856A1 - Stator d'une machine électrique - Google Patents

Stator d'une machine électrique Download PDF

Info

Publication number
WO2018028856A1
WO2018028856A1 PCT/EP2017/064179 EP2017064179W WO2018028856A1 WO 2018028856 A1 WO2018028856 A1 WO 2018028856A1 EP 2017064179 W EP2017064179 W EP 2017064179W WO 2018028856 A1 WO2018028856 A1 WO 2018028856A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor
projection
stator
conductor ends
welded
Prior art date
Application number
PCT/EP2017/064179
Other languages
German (de)
English (en)
Inventor
Martin Ermer
Tobias HEIN
Fabian Lange
Alexander Kudlek
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 WO2018028856A1 publication Critical patent/WO2018028856A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/0056—Manufacturing winding connections
    • H02K15/0068—Connecting winding sections; Forming leads; Connecting leads to terminals
    • H02K15/0081—Connecting winding sections; Forming leads; Connecting leads to terminals for form-wound windings
    • 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
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • 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
    • H02K1/16—Stator cores with slots for windings

Definitions

  • the invention is based on a stator of an electrical machine according to the preamble of the main claim.
  • stator slots and disposed in the stator slots conductor elements, each having two conductor ends, wherein each two adjacent conductor ends of two conductor elements in each case by means of a running over the end faces of the respective conductor ends welded joint without filler material with each other are connected.
  • the laser beam can damage the conductor elements located below the welded joint, in particular their electrical insulation, by passing the laser beam through a gap between the conductor ends to be welded and meeting the underlying conductor elements.
  • the stator of an electrical machine according to the invention with the characterizing features of the main claim has the advantage that the laser can not damage the lying below the weld conductor elements, in particular their electrical insulation by at least one of the conductor ends of at least one of the welded joints below the respective
  • Welded connection has a projection which projects toward the other end of the conductor.
  • the projection blocks the gap between the conductor ends to be welded, so that the laser beam can not strike the underlying conductor elements through the gap.
  • the projection of one of the conductor ends is made by plastically deforming the corresponding conductor end.
  • the projection has a width which corresponds at least to the width of the weld and at most to the width of the conductor end. In this way, the gap between the conductor ends to be welded is closed or blocked at least over the full width of the weld.
  • a first conductor end has the projection and a second conductor end of the same weld joint has a recess into which the
  • conductor ends are provided, each having the projection on one side and a recess on the other side. In this way, the conductor elements can be produced particularly easily and economically.
  • the safety gear can be omitted at the welding station.
  • the conductor ends of the welded joints are stripped and that at least one projection lies in the stripped region of the conductor ends.
  • Fig.l shows a three-dimensional view of a stator of an electric machine, to which the invention can be applied
  • FIG. 2 shows a view of a part of the stator according to Fig.l
  • FIG. 3 shows two conductor ends to be welded of the stator according to Fig.l and Fig.2 according to a first embodiment
  • FIG. 5 shows two conductor ends to be welded of the stator according to Fig.l and Fig.2 according to a second embodiment
  • FIG. 6 shows two conductor ends to be welded of the stator according to Fig.l and Fig.2 according to a third embodiment
  • FIG. 7 shows two conductor ends to be welded of the stator according to Fig.l and Fig.2 according to a fourth embodiment
  • FIG. 8 shows two conductor ends to be welded of the stator according to Fig.l and Fig.2 according to a fifth embodiment.
  • FIG. 1 shows a three-dimensional view of a stator of an electrical machine to which the invention can be applied.
  • the stator 1 of the electric machine comprises stator slots 2 and a plurality of conductor elements 3 arranged in the stator slots 2, which are replaced by corresponding ones
  • the stator 1 is designed for example as a laminated stator core.
  • the conductor elements 3 each have two conductor legs 3.1 which are integrally connected to one another in a "U" -shaped manner via a connecting conductor 3.2
  • the conductor legs 3.1 have conductor ends 3.3 which, on a connection side 4 of the stator 1 facing away from the connecting conductors 3.2, according to a specific winding scheme
  • Forming of welded joints 5 are welded to one another before their welding, the electrically insulated conductor elements 3 are arranged in the stator slots 2 in such a way that all welded joints 5 lie on the same front side of the stator 1.
  • conductor elements 3 To be connected to each other conductor elements 3 are each arranged in such a way in the stator 2, that their conductor ends 3.3 on the connection side 4 of the stator 1 are adjacent to each other, so that they by means provided on the end faces of the respective conductor ends 3.3 weld 5 without
  • the welded joints 5 respectively connect conductor ends 3.3 and conductor legs 3.1 of different ones
  • FIG. 2 shows a view of a part of the stator according to Fig.l.
  • FIG. 3 shows by way of example two conductor ends to be welded of the stator according to FIG. 1 and FIG. 2 according to a first exemplary embodiment.
  • the remaining conductor ends 3.3 of the other welded joints 5 of the stator can be made equivalent. According to the invention it is provided that at least one of the conductor ends 3.3 at least one of the plurality of welded joints 5 below the respective
  • Weld 5 has a projection 8 which projects toward the other end of the conductor 3.3 out. In this way, in each case a gap 9 is blocked between the conductor ends 3.3 to be welded, so that a laser beam 6 of a laser welding device can not hit through the gap 9 on the underlying conductor elements 3.
  • FIG. 2 it is shown that the laser beam 6 at a Passing through the laser beam 6 through the respective gap 9 to meet the underlying conductor elements 3 and would damage them.
  • the projection 8 according to the invention is in each case provided in a stripped region 3.4 of at least one of the conductor ends 3.3.
  • one of the conductor ends 3. 3 has the projection 8 which, due to plastic deformation of this conductor end 3. 3,
  • This projection 8 protrudes into the gap 9 and extends to the other end of the conductor 3.3 zoom.
  • the projection 8 has a perpendicular to the longitudinal extent L of the weld 5 measured width, which corresponds at least to the width of the weld 5 and at most the width B of the conductor end 3 ( Figure 4). In this way, the gap 9 is also blocked transversely to the longitudinal extent L of the weld 5 at least in the area which is traveled by the laser focus or run over.
  • FIG. 5 shows two conductor ends of the stator to be welded according to FIG. 1 and FIG. 2 according to a second exemplary embodiment.
  • Welded joints 5 of the stator may be made equivalent.
  • Embodiment in that two conductor ends 3.3 of the same welded joint having mutually cooperating projections 8, which are made for example by graining or impressions.
  • the two projections 8 protrude into the gap 9 and abut against each other to block the gap 9.
  • the two projections 8 may be arranged offset to one another in the direction of the longitudinal extent of the conductor legs 3.1. This is shown in Figure 5 by a dashed projection 8, which is provided as an alternative to the other, drawn with a solid line projection 8 of the same conductor leg 3.1.
  • FIG. 6 shows two conductor ends of the stator to be welded according to FIG. 1 and FIG. 2 according to a third exemplary embodiment.
  • the remaining conductor ends 3.3 of the other welded joints 5 of the stator can be made equivalent.
  • the third embodiment differs from the previous ones
  • a first conductor end 3.3 has a projection 8 and a second conductor end 3.3 of the same welded connection 5 has a depression 10 into which the projection 8 of the first conductor end 3. 3 extends.
  • the two conductor ends 3.3 each have on one side the projection 8 and on the other side the recess 10, so that more than two conductor ends 3.3 according to the invention can be laser welded together.
  • the conductor ends 3.3 according to the third embodiment are made for example by impressions.
  • FIG. 7 shows two conductor ends of the stator to be welded according to FIG. 1 and FIG. 2 according to a fourth exemplary embodiment.
  • Welded joints 5 of the stator may be made equivalent.
  • a crank 11 provided on the second conductor end 3.3, which cooperates with a stepped projection 8 of the first conductor end 3.3.
  • the crank 11 is understood to mean a stepped return of the second conductor end 3.3, in which a step-shaped projection 8 protrudes or protrudes.
  • FIG. 8 shows two conductor ends of the stator to be welded according to FIG. 1 and FIG. 2 according to a fifth exemplary embodiment.
  • Welded joints 5 of the stator may be made equivalent.
  • the conductor ends 3.3 according to the fifth embodiment are produced for example by caulking.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

On connaît déjà des stators de machine électrique (1) présentant des encoches statoriques (2) et des éléments conducteurs qui sont agencés dans ces encoches et présentent chacun deux extrémités (3, 3.1), deux extrémités (3, 3.1) adjacentes de deux éléments conducteurs étant assemblées sans matériau d'apport par une liaison soudée s'étendant sur les faces frontales des extrémités (3, 3.1) concernées. Selon l'invention, au moins une des extrémités (3, 3.1) d'au moins une des liaisons soudées (5) présente sous la liaison soudée (5) correspondante une partie saillante qui fait saillie en direction de l'autre extrémité (3, 3.1).
PCT/EP2017/064179 2016-08-11 2017-06-09 Stator d'une machine électrique WO2018028856A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016215031.6A DE102016215031A1 (de) 2016-08-11 2016-08-11 Stator einer elektrischen Maschine
DE102016215031.6 2016-08-11

Publications (1)

Publication Number Publication Date
WO2018028856A1 true WO2018028856A1 (fr) 2018-02-15

Family

ID=59091487

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/064179 WO2018028856A1 (fr) 2016-08-11 2017-06-09 Stator d'une machine électrique

Country Status (2)

Country Link
DE (1) DE102016215031A1 (fr)
WO (1) WO2018028856A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190280542A1 (en) * 2018-03-12 2019-09-12 Honda Motor Co., Ltd. Stator of electric rotary machine
JP2020039191A (ja) * 2018-09-03 2020-03-12 三菱電機株式会社 回転電機の固定子
CN113950788A (zh) * 2019-06-10 2022-01-18 大金工业株式会社 旋转电机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021113819A1 (de) 2021-05-28 2022-12-01 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zur Herstellung eines Stators einer elektrischen Maschine und elektrische Maschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1520006A (zh) * 2003-01-22 2004-08-11 株式会社电装 车辆交流发电机的定子装置
WO2013190677A1 (fr) * 2012-06-21 2013-12-27 三菱電機株式会社 Moteur
JP2014007795A (ja) 2012-06-21 2014-01-16 Aisin Aw Co Ltd 回転電機の導体接合方法及び回転電機のコイル
JP2015104249A (ja) * 2013-11-26 2015-06-04 株式会社豊田自動織機 回転電機のコイル接合方法および回転電機のコイル
WO2015189905A1 (fr) * 2014-06-09 2015-12-17 日産自動車株式会社 Procédé de fabrication d'une bobine de stator à fils plats

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1520006A (zh) * 2003-01-22 2004-08-11 株式会社电装 车辆交流发电机的定子装置
WO2013190677A1 (fr) * 2012-06-21 2013-12-27 三菱電機株式会社 Moteur
JP2014007795A (ja) 2012-06-21 2014-01-16 Aisin Aw Co Ltd 回転電機の導体接合方法及び回転電機のコイル
JP2015104249A (ja) * 2013-11-26 2015-06-04 株式会社豊田自動織機 回転電機のコイル接合方法および回転電機のコイル
WO2015189905A1 (fr) * 2014-06-09 2015-12-17 日産自動車株式会社 Procédé de fabrication d'une bobine de stator à fils plats

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190280542A1 (en) * 2018-03-12 2019-09-12 Honda Motor Co., Ltd. Stator of electric rotary machine
JP2019161822A (ja) * 2018-03-12 2019-09-19 本田技研工業株式会社 回転電機のステータ
CN110266159A (zh) * 2018-03-12 2019-09-20 本田技研工业株式会社 旋转电机的定子
US10862367B2 (en) * 2018-03-12 2020-12-08 Honda Motor Co., Ltd Stator of electric rotary machine
CN110266159B (zh) * 2018-03-12 2021-12-28 本田技研工业株式会社 旋转电机的定子
JP7045225B2 (ja) 2018-03-12 2022-03-31 本田技研工業株式会社 回転電機のステータ
JP2020039191A (ja) * 2018-09-03 2020-03-12 三菱電機株式会社 回転電機の固定子
JP7166109B2 (ja) 2018-09-03 2022-11-07 三菱電機株式会社 回転電機の固定子
CN113950788A (zh) * 2019-06-10 2022-01-18 大金工业株式会社 旋转电机
CN113950788B (zh) * 2019-06-10 2023-05-09 大金工业株式会社 旋转电机
EP3952068B1 (fr) * 2019-06-10 2024-02-07 Daikin Industries, Ltd. Machine électrique rotative

Also Published As

Publication number Publication date
DE102016215031A1 (de) 2018-02-15

Similar Documents

Publication Publication Date Title
DE102016120208B4 (de) Fügeverfahren für spulenenden von segmentspulen für einen stator und fügevorrichtung
EP2013961B1 (fr) Procédé de fabrication d'un enroulement à cage d'écureuil pour le stator d'un moteur électrique
WO2018028856A1 (fr) Stator d'une machine électrique
DE10318411B4 (de) Linearmotor
DE102010016197A1 (de) Vorrichtung und Verfahren zum Formen der elektrischen Leiter einer Statorspule einer sich drehenden Elektromaschine
DE102016220863A1 (de) Verfahren zum Verbinden von Flachdrahtenden sowie derart hergestellter Stator
DE112012002356T5 (de) Verbindungsanschluss und Verfahren zur Herstellung eines Verbindungsanschlusses
DE4035424C2 (de) Elektromotor
EP3676043A1 (fr) Procédé pour souder des conducteurs électriques au moyen d'ultrasons, et dispositif de soudage de métaux par ultrasons
DE112011105077T5 (de) Kernwickelverfahren und Stator
DE112017001733B4 (de) Synchron-Linearmotor
DE102012218433B4 (de) Kontaktanordnung
DE102020116673B3 (de) Bauteil für einen elektrischen Fahrzeugantrieb, Baugruppe für einen elektrischen Fahrzeugantrieb sowie Verfahren zur elektrisch leitenden Verbindung zweier Bauteile
DE102017100891A1 (de) Motorständer und Verfahren zum Bilden des Motorständers
WO2018188945A1 (fr) Stator pour une machine électrique et procédé de fabrication d'un stator d'une machine électrique
DE102022205711A1 (de) Stator für eine elektrische Maschine, elektrische Maschine, Kraftfahrzeug und Verfahren zur Herstellung eines Stators
DE102017214195A1 (de) Verfahren zur Herstellung eines Nutisolationspapier, Nutisolationspapier, Stator und elektrische Maschine mit Stator
DE4120898C2 (de) Kommutator und Verfahren zu dessen Herstellung
DE102017106622A1 (de) Verfahren zur Verbindung von drei Bauteilen und verbindbares System zur Durchführung des Verfahrens
DE102006042360B3 (de) Elektromagnetmetallkern aus Einzelblechen
DE102014010023A1 (de) Verfahren und Vorrichtung zur Verbindung von zwei Bauteilen eines elektrischen Anschlussteils
DE102022210287A1 (de) Verbindungsanordnung und Verfahren zur Ausbildung einer Verbindungsanordnung
DE2155752A1 (de) Verfahren zum herstellen eines polgehaeuses fuer elektrische maschinen
WO2019192763A1 (fr) Procédé de fabrication d'un enroulement statorique dans un stator d'un moteur électrique
DE102020215909A1 (de) Anschlusseinrichtung für einen Stator, Statoranordnung für eine elektrische Maschine, Verfahren zur Herstellung einer Statoranordnung und elektrische Maschine zum Antreiben eines Fahrzeugs

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: 17731505

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17731505

Country of ref document: EP

Kind code of ref document: A1