EP3785351A1 - Moteur électrique et son procédé de fabrication - Google Patents

Moteur électrique et son procédé de fabrication

Info

Publication number
EP3785351A1
EP3785351A1 EP19721977.7A EP19721977A EP3785351A1 EP 3785351 A1 EP3785351 A1 EP 3785351A1 EP 19721977 A EP19721977 A EP 19721977A EP 3785351 A1 EP3785351 A1 EP 3785351A1
Authority
EP
European Patent Office
Prior art keywords
housing
stator
electric motor
die
bearing plate
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.)
Pending
Application number
EP19721977.7A
Other languages
German (de)
English (en)
Inventor
Peter Schwanemann
Andreas KESKINOGLU
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG 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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3785351A1 publication Critical patent/EP3785351A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H02K5/06—Cast metal casings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/14—Casings; Enclosures; Supports
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/02—Casings or enclosures characterised by the material thereof
    • 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
    • H02K5/15—Mounting arrangements for bearing-shields or end plates
    • 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
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine

Definitions

  • the invention relates to a method for producing such an electric motor.
  • German Offenlegungsschrift DE 10 201 1 082 461 A1 discloses a stator housing for an electric motor.
  • German patent application DE 10 2009 000 591 A1 discloses a stator and a die-cast housing. Cooling channels are integrated in the stator.
  • German Offenlegungsschrift DE 10 2012 213 237 A1 discloses an electrical machine with a housing, a stator and a rotor.
  • a cooling channel is provided between the housing and the stator.
  • the housing and the stator are positively connected to each other via axial webs against radial rotation, wherein the webs are designed to redirect the cooling medium.
  • the electric motor according to the invention comprises
  • Statorzähne be formed in the wall of the housing.
  • the shape of the teeth on the outer circumference should be chosen accordingly so that a sufficient
  • the inventive method for producing an electric motor comprises several steps.
  • the electric motor in turn comprises a cylindrical housing, a stator which comprises a plurality of stacked sheets or consists of several stacked sheets, wherein the stator is mounted in the housing, and a rotor which sits on a shaft which in each case a bearing plate, the a first end
  • Fig. 6 shows a sectional view through the housing and the stator along another, to the axis of the electric motor of FIG. 3 radially extending cutting plane B- B.
  • Fig. 7 shows a partial view of an embodiment according to the invention, in which a bearing plate is an integral part of the housing.
  • Fig. 8 shows a plan view of a part of a sheet for a sheet stack of the stator.
  • Fig. 1 1 shows a schematic partial view of a material injected into the die.
  • Fig. 2 shows an enlarged partial view of an embodiment of the mounting method according to the invention of the stator 2 in the housing 10 of an embodiment of the
  • the housing 10 is die-cast and the stator 2 projects with a depth T seamlessly into a wall 9 of the housing 10.
  • the depth T is smaller than a thickness W of the wall.
  • the stator 2 is thus radially surrounded by the molded die-cast housing 10 and the housing 10 carries the stator 2.
  • the stator 2 is then directly, seamlessly and firmly on and even at least partially in the housing 10, which has several advantages Has.
  • FIG. 3 shows a sectional view through the housing 10 and the stator 2 along a sectional plane A-A according to FIG. 4 that is perpendicular to the axis A of an embodiment of the electric motor 1, the sectional plane A-A lying within the area of the stator 2.
  • the axis A is shown here as a point, since the axis A comes out of the plane in this sectional view, so to speak.
  • the cooling medium may be, for example, a mixture of water and glycol.
  • the channels 15 serve the effective dissipation of heat loss of the electric motor 1 and can be formed directly in an embodiment in die casting.
  • the recesses for the cooling channels 15 are in the illustration of FIG. 3 expediently, but not necessarily formed below the stator teeth 24 in the wall 9 of the housing 10. The other components of the electric motor 1 are described in connection with FIG. 2.
  • Electric motors 1 are described in connection with FIGS. 2 to 4.
  • the structure of the housing 10 of FIG. 7 is thus of three parts: A-end shield, cylindrical middle housing part Extruded profile and B-end shield.
  • the die-cast housing 10 is cast, for example in a "pot shape", that is, that the first bearing plate 7 is molded directly to the stator 2 supporting part of the housing 10 and only one additional, so the second,
  • the shape of the teeth on the outer circumference 13 should be chosen accordingly so that a sufficient anchorage is given, for example and as shown in Fig. 8, but without limitation of the invention, as a hook with each
  • the hook shape of the teeth 14 selected in FIG. 8 is complex and therefore expensive to manufacture.
  • other, simpler shapes for the teeth can be chosen instead, for example, without limitation of the invention, rectangles, trapezoids (see Fig. 3) or triangles, optionally with rounded corners, such as in a toothing on known gears ,
  • the recesses for the cooling channels 15 may, for example, expediently, but not necessarily, be formed below the stator teeth 24 (see FIG. 3) in the wall 9 of the housing 10.
  • teeth 14 are formed on some of the stacked sheets 3 of the stator 2 on an outer periphery 13 (not shown in FIGS. 9 to 12, see FIG. 8 instead).
  • the teeth 14 are overmolded by the material 30 during the ejection of the die casting mold 20 according to FIG. 11, so that the teeth 14 protrude into the wall 9 of the die-cast housing 10.
  • the advantages of the teeth 14 have already been described in connection with FIGS. 3 and 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Frames (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

La présente invention concerne un moteur électrique (1), qui comprend un carter (10) de forme cylindrique, un stator (2), qui se compose de plusieurs tôles (3) empilées et qui est maintenu dans le carter (10), et un rotor (4), qui repose sur un arbre (6) qui est logé rotatif dans des flasques (7) qui sont disposés respectivement à une première extrémité (11) et à une seconde extrémité (12) du carter (10). Le carter (10) est moulé sous pression. Le stator (2) pénètre avec une profondeur (T) sans jeu dans une paroi (9) du carter (10). La profondeur (T) est plus petite qu'une épaisseur (W) de la paroi (9). La présente invention concerne en outre un procédé de fabrication d'un moteur électrique (1) de ce genre.
EP19721977.7A 2018-04-27 2019-04-23 Moteur électrique et son procédé de fabrication Pending EP3785351A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018110176.7A DE102018110176A1 (de) 2018-04-27 2018-04-27 Elektromotor und Verfahren zu dessen Herstellung
PCT/DE2019/100375 WO2019206380A1 (fr) 2018-04-27 2019-04-23 Moteur électrique et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP3785351A1 true EP3785351A1 (fr) 2021-03-03

Family

ID=66429130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19721977.7A Pending EP3785351A1 (fr) 2018-04-27 2019-04-23 Moteur électrique et son procédé de fabrication

Country Status (5)

Country Link
US (1) US12021433B2 (fr)
EP (1) EP3785351A1 (fr)
CN (1) CN112020814A (fr)
DE (2) DE102018110176A1 (fr)
WO (1) WO2019206380A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020119442A1 (de) 2020-07-23 2022-01-27 Valeo Siemens Eautomotive Germany Gmbh Verfahren zur Herstellung eines Zwischenprodukts für eine elektrische Maschine, umfassend ein Statorblechpaket und einen damit verbundenen Gehäuseteil des Gehäuses
CN114499007A (zh) * 2020-10-28 2022-05-13 法雷奥西门子新能源汽车德国有限责任公司 旋转电机以及制造旋转电机的方法
EP4294589A1 (fr) * 2021-02-19 2023-12-27 ae group ag Procédé et système de production de pièce coulée pour la production d'un carter de moteur électrique, et moteur électrique
CN116867584A (zh) * 2021-02-19 2023-10-10 Ae集团股份公司 用于制造电机壳体的方法及铸件制造设备和电机
DE102023202261A1 (de) * 2023-03-14 2024-09-19 Zf Friedrichshafen Ag Statorträger für eine elektrische Maschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233836A (en) * 1989-07-08 1991-01-16 Bosch Gmbh Robert Cooling winding heads in an electric machine for a motor vehicle
DE102012215232A1 (de) * 2012-08-28 2014-03-06 Robert Bosch Gmbh Stator in einem Elektromotor

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1711414A (en) * 1926-08-09 1929-04-30 Kan Dor Electric Corp Method of making electric-motor stators
DE767429C (de) * 1937-09-05 1952-07-10 Elektromotorenfabrik H Loher & Verfahren zum Herstellen von Staendern elektrischer Maschinen
DE19851439A1 (de) 1998-11-09 2000-03-30 Daimler Chrysler Ag Elektrische Maschine mit Kühlung
DE102005002897B4 (de) 2004-03-13 2021-06-10 Vem Motors Gmbh Flüssigkeitsgekühlte elektrische Maschine mit Gussgehäuse
DE102009000591A1 (de) 2009-02-04 2010-08-05 Robert Bosch Gmbh Antriebseinrichtung
DE102011007690A1 (de) 2010-09-07 2012-03-08 Elektro-Bauelemente Gmbh Verfahren zum Einspeisen von elektrischer Energie in einen Energiespeicher eines elektrisch betreibbaren Fahrzeugs
DE102011076904A1 (de) 2011-06-01 2012-12-06 Robert Bosch Gmbh Gekühlter Stator für Elektromotor
DE102011082461A1 (de) 2011-09-09 2012-12-06 Continental Automotive Gmbh Statorgehäuse für einen Elektromotor und Elektromotor
DE102012213237A1 (de) * 2012-07-27 2014-01-30 Robert Bosch Gmbh Statorbefestigung einer elektrischen Maschine
JP6325272B2 (ja) 2014-02-12 2018-05-16 日本電産テクノモータ株式会社 樹脂ケーシングの成型方法およびモータ
EP2933902B1 (fr) 2014-04-17 2016-06-01 Siemens Aktiengesellschaft Dissipation de la chaleur d'une machine électrique
DE102015200096A1 (de) 2015-01-08 2015-12-17 Schaeffler Technologies AG & Co. KG Kühlmantelanordnung für einen Elektromotor sowie elektrischer Antrieb für ein Fahrzeug mit der Kühlmantelanordnung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233836A (en) * 1989-07-08 1991-01-16 Bosch Gmbh Robert Cooling winding heads in an electric machine for a motor vehicle
DE102012215232A1 (de) * 2012-08-28 2014-03-06 Robert Bosch Gmbh Stator in einem Elektromotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019206380A1 *

Also Published As

Publication number Publication date
CN112020814A (zh) 2020-12-01
DE102018110176A1 (de) 2019-10-31
US12021433B2 (en) 2024-06-25
WO2019206380A1 (fr) 2019-10-31
US20210143704A1 (en) 2021-05-13
DE112019002187A5 (de) 2021-02-11

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Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG