WO2012113432A2 - Procédé de fabrication d'une carcasse de stator - Google Patents

Procédé de fabrication d'une carcasse de stator Download PDF

Info

Publication number
WO2012113432A2
WO2012113432A2 PCT/EP2011/006394 EP2011006394W WO2012113432A2 WO 2012113432 A2 WO2012113432 A2 WO 2012113432A2 EP 2011006394 W EP2011006394 W EP 2011006394W WO 2012113432 A2 WO2012113432 A2 WO 2012113432A2
Authority
WO
WIPO (PCT)
Prior art keywords
tube
jacket
pole
galvanized
sheet metal
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/EP2011/006394
Other languages
German (de)
English (en)
Other versions
WO2012113432A3 (fr
Inventor
Christian Kaiser
Alexander Kifer
Norman Braungardt
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.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE 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 Brose Fahrzeugteile SE and Co KG filed Critical Brose Fahrzeugteile SE and Co KG
Priority to DE112011104960T priority Critical patent/DE112011104960A5/de
Publication of WO2012113432A2 publication Critical patent/WO2012113432A2/fr
Publication of WO2012113432A3 publication Critical patent/WO2012113432A3/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
    • 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
    • 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
    • H02K1/17—Stator cores with permanent magnets

Definitions

  • the invention relates to a method for producing a pole housing for an electric motor.
  • Electric motors in particular compact motors, often have a so-called pole housing, in which inner wall side permanent magnets which form the stator of the electric motor, and the rotor (rotor or armature) are used.
  • Pole housings are usually produced in the so-called deep-drawing process.
  • the pole tube can also be produced in the classic tube production, in which a tube is formed, for example, by stress relief annealing and repeated tube drawing in the subsequent pole tube shape.
  • the pipe can be cut to length, for example, in a special machine.
  • the end faces of the tube are ground.
  • the pipe is galvanized as bulk material to protect against corrosion. Disadvantages here are in particular the relatively large number of individual production steps, the subsequent galvanizing and the costly semi-finished product in the form of the tube.
  • a method for producing a pipe in which the pipe is formed from a substantially flat metallic sheet. The longitudinal edges of the sheet are connected to each other by form-locking interlocking elements.
  • From DE 100 23 313 A1 discloses a method for fixing a stator in a housing is disclosed, wherein the housing is made of a metal strip by means of bending. The following after the bending process touching end edges of the metal strip engage each other to form a joint gap, wherein the inner diameter of the housing should be larger than the outer diameter of the stator.
  • Such mechanical joints usually cause procedural, geometric and constructional bumps. When crimping or crimping the interlocking elements are connected by plastic deformation, so that burrs arise. These require additional post-processing. Such a compound usually does not provide adequate protection against ingress of liquid.
  • the invention has for its object to provide a particularly suitable for producing a Polgebliuses method.
  • the method should in particular allow a simple, time-saving and cost-effective production of the pole housing.
  • a galvanized material pipe jacket surface is first provided.
  • a tube jacket preferably galvanized sheet material is unwound from a sheet metal roll (sheet metal coil) and directed, and fed to a punching device for separating the raw jacket.
  • the tube jacket made of the galvanized material is formed into a cylindrical pole tube in such a way that the tube longitudinal or end edges of the tube jacket extending in the tube longitudinal direction face one another.
  • the tube jacket is first supplied to a bending device for preforming in an approximately round or cylindrical shape and then a calibration device for creating the circular shape of the cylindrical pole tube.
  • the jacket longitudinal edges of the tubular jacket are connected together to form a circumferentially closed pole tube.
  • the pipe jacket which is curved in a rotationally symmetrical manner (for example in the form of a cylinder with or without an inlet bevel) is suitably one Welding device supplied, which connects the shell longitudinal edges of the galvanized pipe jacket by means of a laser weld material fit together.
  • a connection by means of a laser weld ensures a reliable and in particular liquid-impermeable abutting edge connection. This is due to the thus avoided overlap of Mantell bugsskanten beyond preferably also saves material.
  • Another advantage of the laser-welded end edge joint is the comparatively low, concentrated energy input into the pole tube and thus a lower thermally induced distortion. As a result, much tighter tolerances of the pole tube can be quickly and easily produced and adhered to.
  • connection does not occur selectively as in a crimping, but evenly along the Mantelltulskanten the pole tube.
  • geometric and structural irregularities are avoided by the laser weld and the production of a particularly liquid and gas-impermeable pile tube ensured.
  • the tube-side welded pole tube of a punching and bending device for bending a number of fixing lugs distributed on the circumference at one end of the tube end is added. guided. These may be screw holes or eyelets and / or brush crimp hooks.
  • a cover is preferably fastened to a front end of the pipe, namely to the end of the pipe lying opposite the fastening tabs, wherein in turn welding is expedient.
  • the cover which serves as a bearing plate of the pole housing for an electric motor, is preferably provided as a finished part. This allows the provision of various bearing caps, while this flexibility is not given in a deep-drawn Pohl housing.
  • the advantages achieved by the invention are, in particular, that the number of required process steps is advantageously reduced by using a pipe material from an already pre-galvanized material that is formed into a cylindrical pole tube and its Mantell bugsskanten then cohesively connected to each other, as both a subsequent galvanizing deleted as well as subsequent processing can be saved.
  • a faster production and thus a higher output amount are possible than in previous methods.
  • the costs are advantageously reduced, since in particular the required tooling costs are reduced. This results in a general reduction in unit costs compared to Pohlgephin produced by conventional methods.
  • a pre-galvanized material is used, which is processed in a stamping and bending machine.
  • the tube jacket surfaces are unrolled from sheet metal coil, punched and bent in a forming station to a tube round cross-section.
  • laser welding creates a strong and liquid-impermeable connection of the longitudinal edges of the sheath.
  • subsequent galvanizing is not required.
  • no Post-processing is required, but at least the number of post-processing operations is significantly reduced.
  • the pole housing made of a pre-galvanized material by a stamping-bending process is therefore particularly suitable for an electric motor which is provided as an actuator for an adjustment part of a motor vehicle.
  • FIG. 4 the pole tube of FIG. 2 in a side view overlooking a
  • Fig. 5 the pole housing in cross section.
  • the pole tube 1 shown in FIGS. 2 to 5 is made of a galvanized sheet steel.
  • the tube jacket 2 of the pole tube 1 forms two opposite, longitudinally extending in the longitudinal direction L Mantelltulskanten 3, which are guided against each other, wherein axially between the two mangling longitudinal edges 3 of the tubular jacket 2, a radial tube gap 4 extends.
  • One of the end faces or tube ends 6a of the pole tube 1 is closed with a bearing cap 7.
  • This serves as a shield to provide a the Shaft of an electric motor or its rotor receiving bearing.
  • an at least one side closed pole housing of the electric motor is provided in a simple and flexible manner.
  • permanent magnets can be previously mounted as a stator of the electric motor.
  • the electric motor can be used in particular as a compact actuator for an adjustment part of a motor vehicle, for example for a seat adjustment or a window lifter.
  • Fig. 1 schematically illustrates the process for producing Pohlgepuren of a galvanized material.
  • Starting point is a sheet metal roll (Blechcoil) 10 with a multilayer rolled already galvanized sheet metal with a sheet thickness of 1, 0mm to 3.0mm.
  • the sheet metal coil 10 is unwound and continuously directed in a straightening apparatus 1 1 in a first process step, wherein the respectively directed sheet metal portion is always part of the quasi-endless sheet metal strip of the sheet metal roller 10.
  • the bandwidth of the metal roll 10 corresponds to the later pile tube length
  • the size of the required tubular jacket is cut to length from the sheet metal roller 1 1 by means of a punching device 12.
  • the respectively cut sheet metal jacket 2 or the piece of sheet metal is bent in a bending device 13 at least roughly to the later cylindrical shape.
  • the punching device 12 and the bending device 13 are suitably part of a combined bending and punching machine.
  • the laser welding is carried out by means of a welding device 15 along the mutually aligned axial longitudinal edges 3 of the tubular jacket 2 from the rotationally symmetrical (for example cylindrically with or without Inlet slope) bent metal jacket.
  • a welding device 15 along the mutually aligned axial longitudinal edges 3 of the tubular jacket 2 from the rotationally symmetrical (for example cylindrically with or without Inlet slope) bent metal jacket.
  • the raw shell 2 is held in its calibrated, cylindrical ideal shape by attacking corresponding supporting forces F at several points of the raw jacket 2.

Landscapes

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

Abstract

L'invention concerne un procédé de fabrication d'une carcasse de stator pour un moteur électrique, selon lequel une surface tubulaire (2) en matériau prézingué est produite, cette surface tubulaire (2) en matériau zingué étant façonnée en un tube polaire (1) cylindrique de telle sorte que les arêtes longitudinales externes (3) de la surface tubulaire (2) s'étendant dans le sens longitudinal du tube (L) sont orientées les unes vers les autres et qu'elles sont reliées ensemble pour former un tube polaire (1) fermé.
PCT/EP2011/006394 2011-02-25 2011-12-17 Procédé de fabrication d'une carcasse de stator Ceased WO2012113432A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112011104960T DE112011104960A5 (de) 2011-02-25 2011-12-17 Verfahren zur Herstellung eines Polgehäuses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110012317 DE102011012317A1 (de) 2011-02-25 2011-02-25 Verfahren zur Herstellung eines Polgehäuses
DE102011012317.2 2011-02-25

Publications (2)

Publication Number Publication Date
WO2012113432A2 true WO2012113432A2 (fr) 2012-08-30
WO2012113432A3 WO2012113432A3 (fr) 2013-01-17

Family

ID=45464488

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/006394 Ceased WO2012113432A2 (fr) 2011-02-25 2011-12-17 Procédé de fabrication d'une carcasse de stator

Country Status (2)

Country Link
DE (2) DE102011012317A1 (fr)
WO (1) WO2012113432A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106849468A (zh) * 2017-03-01 2017-06-13 宁波腾隆户外用品有限公司 液冷伺服马达及其制造工艺
WO2017190963A1 (fr) 2016-05-04 2017-11-09 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Procédé de production d'une carcasse polaire

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013005481U1 (de) 2013-06-19 2014-09-22 BROSE SCHLIEßSYSTEME GMBH & CO. KG Polgehäuse für einen Elektromotor
DE102021202597B3 (de) * 2021-03-17 2022-09-08 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg Verfahren zur Herstellung eines Batteriegehäuses einer Batterie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10023313A1 (de) 2000-05-15 2001-12-13 Voit Willy Gmbh & Co Verfahren zum Befestigen eines Stators in einem Gehäuse
DE10321863A1 (de) 2003-05-14 2004-12-30 Willy Voit Gmbh & Co. Stanz- Und Metallwerk Rohr, Verfahren zur Herstellung eines Rohrs und Verwendung eines Rohrs

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2810215C3 (de) * 1978-03-09 1993-12-02 Bosch Gmbh Robert Verfahren zum Aufbringen eines zusätzlichen Rückschlusses auf das Gehäuse einer elektrischen Maschine
DE102005035146A1 (de) * 2005-07-27 2007-02-08 Scheuermann & Heilig Gmbh Gehäuse für eine elektrische Kleinmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10023313A1 (de) 2000-05-15 2001-12-13 Voit Willy Gmbh & Co Verfahren zum Befestigen eines Stators in einem Gehäuse
DE10321863A1 (de) 2003-05-14 2004-12-30 Willy Voit Gmbh & Co. Stanz- Und Metallwerk Rohr, Verfahren zur Herstellung eines Rohrs und Verwendung eines Rohrs

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017190963A1 (fr) 2016-05-04 2017-11-09 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Procédé de production d'une carcasse polaire
JP2019520030A (ja) * 2016-05-04 2019-07-11 ブローゼ・ファールツォイクタイレ・ゲーエムベーハー・ウント・コンパニ・コマンディットゲゼルシャフト・ヴュルツブルク 磁極ハウジングの製作方法
US10784754B2 (en) 2016-05-04 2020-09-22 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Wuerzburg Method for producing a pole housing, pole housing for an electric motor and electric motor having a pole housing
CN106849468A (zh) * 2017-03-01 2017-06-13 宁波腾隆户外用品有限公司 液冷伺服马达及其制造工艺
CN106849468B (zh) * 2017-03-01 2024-03-29 宁波沃伏龙机电有限公司 液冷伺服马达及其制造工艺

Also Published As

Publication number Publication date
WO2012113432A3 (fr) 2013-01-17
DE112011104960A5 (de) 2013-12-12
DE102011012317A1 (de) 2012-08-30

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