WO2007033639A1 - Stator conçu pour un moteur electrique, et son procede de production - Google Patents

Stator conçu pour un moteur electrique, et son procede de production Download PDF

Info

Publication number
WO2007033639A1
WO2007033639A1 PCT/DE2006/001536 DE2006001536W WO2007033639A1 WO 2007033639 A1 WO2007033639 A1 WO 2007033639A1 DE 2006001536 W DE2006001536 W DE 2006001536W WO 2007033639 A1 WO2007033639 A1 WO 2007033639A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
electric motor
bearing seat
statorpolzahn
statorpolzahns
Prior art date
Application number
PCT/DE2006/001536
Other languages
German (de)
English (en)
Inventor
Michael Bulatow
Original Assignee
Temic Automotive Electric Motors 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 Temic Automotive Electric Motors Gmbh filed Critical Temic Automotive Electric Motors Gmbh
Priority to DE112006001172T priority Critical patent/DE112006001172A5/de
Publication of WO2007033639A1 publication Critical patent/WO2007033639A1/fr

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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor

Definitions

  • the invention relates to a stator for an electric motor and a method for producing such a stator.
  • stators are particularly suitable for use in motor vehicles.
  • electric motors which are designed as small engines, play an important role due to the limited space.
  • Small motors are electric motors with small dimensions and usually have a power up to 1 kW.
  • Electric motors can as réelle meetingr- or
  • External rotor motors be formed.
  • Internal rotor motors have an outer stator and an inner rotor.
  • the rotor is inserted coaxially in the stator.
  • the outer rotor coaxially surrounds the inner stator.
  • the rotor or the rotor shaft is rotatably mounted in all variants.
  • the bearing of the rotor shaft is realized for example with one or more end shields.
  • the rotor shaft can either be mounted directly in a bearing plate or in a friction-reducing bearing, which is arranged in a bearing plate.
  • the use of end shields is expensive because they represent additional components.
  • stator may have an integrated bearing seat. So is out of the
  • the invention has for its object to provide a stator for an electric motor and a method for producing such, whereby a simple construction of an electric motor with a small space is made possible.
  • the object is achieved by a stator having the features specified in claim 1, and by a method having the features specified in claim 7.
  • a stator having a plurality of stator pole teeth and a bearing seat divided into a plurality of segments is proposed, wherein at least one of these segments is connected to a relevant stator pole tooth.
  • the bearing seat can thus also be produced in the same work step.
  • the stator requires a small space.
  • the bearing seat can either directly accommodate a rotor shaft or a bearing for a rotor shaft.
  • the connected segment consists of
  • the segment is injected around one or a part of the Statorpolzahns and so connected to the Statorpolzahn. This allows a stable, positive connection with little effort.
  • the arranged part of the Statorpolzahns also be connected to the Statorpolzahn component.
  • the overmolded part of the stator pole tooth is formed integrally with the stator pole tooth. This allows a particularly stable connection.
  • the overmolded part is designed as a reinforcing anchor for the bearing seat.
  • a reinforcing anchor particularly in one-piece design, provides an efficient means of reinforcing the bearing seat.
  • a connection of adjacent Statorpolzähne succeeds in an advantageous manner by means of a arranged in a Statorpolzahn recess for a part of a
  • the recess may be formed in particular as a groove.
  • Such a film hinge which is partially disposed in the recess of the respective Statorpolzahns and partially in the recess of the adjacent Statorpoltechniks, provides a flexible connection between the two Statorpolzähnen. The flexible connection allows in particular with little effort unfolding the stator for winding and the subsequent folding, if necessary also repeated.
  • Such a film hinge can also be used independently of a segmented bearing seat.
  • the film hinge is made of plastic. In this way, it can be produced in one operation with the encapsulation of an electrical insulation and / or the segment of the bearing seat. As a result, no additional injection mold is needed.
  • the foil hinge can be injected directly into the recess. Alternatively, it can be prefabricated in the same or in a separate injection process and subsequently inserted into the recess.
  • Embodiments are preferred in which the depression widens in the manner of an undercut. This prevents movement of the film hinge from the recess under tension.
  • an insulation is produced on at least one side of the Statorpolzahns and / or a film hinge for flexible coupling of two adjacent Statorpolzähne during encapsulation. This eliminates additional
  • a film hinge can flexibly replace outer webs or hinges made with the stator pole teeth. It is expediently injected into two corresponding recesses of adjacent Statorpolzähnen so that these adjacent Statorpolzähen be coupled together.
  • connection is performed on a single stator pole tooth or in a deployed state of multiple stator pole teeth.
  • Statorpolzahn is easily accessible.
  • the segment can do so with high precision getting produced.
  • connection may be made in a folded state of a plurality of stator pole teeth.
  • Claimed is accordingly also an electric motor with a stator according to the invention.
  • IB schematically two coupled, unfolded Statorpolzähne in front view and perspective view
  • FIG. 2A to 2C schematically individual stator pole teeth in the non-overmolded state in a loose arrangement for a stator in cross section and in perspective
  • 3A to 3C schematically show a folded stator in front view and perspective view
  • Fig. 4 to 5 schematically shows the connection of several or two Statorpolzähne means of a film hinge in detail.
  • Foil hinge 2 in the unfolded state are flexibly hinged together. Further, adjacent Statorpolzähne are not shown for clarity.
  • Each Statorpol leopard 1 is composed of coated with baked enamel or linked individual sheets.
  • FIG. 1B shows the same stator pole teeth 1 in perspective.
  • Each Statorpol leopard 1 consists of a respective package of sheets not individually shown, wherein the end-side metal sheet as part of the Statorpolzahns 1 has a reinforcing anchor 3, which is angled at about 90 ° to the end-side sheet in a cold bending process and formed integrally therewith. Other angles are possible.
  • Each laminated core is encapsulated including the respective reinforcing anchor 3 for electrical insulation with plastic.
  • the plastic is positively connected to the reinforcing anchor 3 and formed into a segment 4 of a bearing seat.
  • the plastic can be reinforced in glass fiber reinforced or modified with mineral additives.
  • Both the film hinges 2 and the insulation and the segments 4, including the reinforcing anchors 3, are preferably produced in a single operation in the unfolded state of the Statorpolzähne 1 by spraying.
  • the spraying can take place in the folded state of the stator pole teeth 1.
  • the Statorpolzähne 1 can be injected separately in the uncoupled state.
  • FIGS. 2A, 2B and 2C show stator pole teeth 1 in the non-overmolded state.
  • FIG. 2A the original contours of the end plates of folded stator pole teeth 1 with reinforcing anchors 3 can be seen schematically, wherein the reinforcing anchors 3 are integrally formed with the reinforcing anchors 3
  • FIG. 2B shows the theoretical bending line for the angle of a reinforcing anchor 3.
  • the stator pole teeth 1 are in the form shown in FIG. 2C, which, in the folded state, represents them in perspective.
  • the reinforcing anchors 3 act after the overmolding as a reinforcement for the surrounding plastic and thus as a reinforcement for the bearing seat 6.
  • Verstärkungsanker 3 can be arranged in non-formed embodiments at both ends of a Statorpol leopards 1 at the respective end plates when segmented on both sides Bearing seats 6 are provided.
  • FIGS. 3A, 3B and 3C After folding over the over-molded stator pole teeth 1, a stator 5 depicted in FIGS. 3A, 3B and 3C in a front view or in perspective or as a longitudinal section is present. In total, for example, it has twelve stator pole teeth 1, which are coupled according to the manner described with reference to FIGS. 1A, 1B.
  • a rotor shaft can be mounted directly rotatable or a bearing for a rotor shaft can be arranged.
  • a bearing for example a roller bearing, is pressed into the bearing seat 6.
  • FIG. 3C shows the over-molded stator pole teeth 1 with a ball bearing 7 arranged in the bearing seat 6 and a rotor shaft 8 in longitudinal section.
  • FIG. 4 shows a plurality of stator pole teeth 1 coupled by foil hinges 2 in a superimposed illustration of folded and unfolded position. For the folded position, the common center M of the rotational symmetry of the stator 5 is shown.
  • FIG 5 the connection of two Statorpolzähne 1 is shown by means of a film hinge 2 in detail. With solid lines, the folded position of the Statorpolzähne 1 and dashed lines the unfolded position is shown. Both Statorpolzähne 1 have a respective recess 9, in which the film hinge 2 is partially arranged. The recesses 9 widen to a predetermined depth, so that the form-fitting effect of an undercut against an outward movement of the film hinge 2 is achieved. Unintentional separation of the Statorpolzähne 1 is prevented.
  • the film hinge 2 is expediently inserted or injected into the recesses 9 in the folded-up position of the stator pole teeth 1. In this position, the openings of the recesses 9 are optimally accessible.
  • the introduction of the film hinge 2 in the folded position is preferably produced in one operation with an insulating encapsulation of the stator pole teeth 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne un stator (5) conçu pour un moteur électrique, comprenant plusieurs dents de pôle de stator (1) et un siège de montage (6) qui est divisé en plusieurs segments (4). Selon l'invention, au moins un de ces segments (4) est relié avec une desdites dents de pôle de stator (1). La présente invention concerne en outre un procédé pour produire un stator de ce type.
PCT/DE2006/001536 2005-09-21 2006-09-01 Stator conçu pour un moteur electrique, et son procede de production WO2007033639A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006001172T DE112006001172A5 (de) 2005-09-21 2006-09-01 Stator für einen Elektromotor und Verfahren zur Herstellung

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005045186 2005-09-21
DE102005045186.1 2005-09-21
DE102006017081.4 2006-04-10
DE102006017081A DE102006017081A1 (de) 2005-09-21 2006-04-10 Stator für einen Elektromotor und Verfahren zur Herstellung

Publications (1)

Publication Number Publication Date
WO2007033639A1 true WO2007033639A1 (fr) 2007-03-29

Family

ID=37496753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/001536 WO2007033639A1 (fr) 2005-09-21 2006-09-01 Stator conçu pour un moteur electrique, et son procede de production

Country Status (2)

Country Link
DE (2) DE102006017081A1 (fr)
WO (1) WO2007033639A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2388887A2 (fr) 2010-05-18 2011-11-23 Aumann GMBH Chaîne de pôles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008054523A1 (de) * 2008-12-11 2010-06-17 Robert Bosch Gmbh Stator in einem Elektromotor
IT1393837B1 (it) 2009-04-30 2012-05-11 Marsilli & Co Procedimento e apparecchiatura per la realizzazione dello statore di un motore elettrico con assemblaggio automatico dei vari poli.
DE102015211921A1 (de) 2015-06-26 2016-12-29 Siemens Aktiengesellschaft Stator für eine elektrische Maschine und Herstellungsverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1339156A2 (fr) * 2002-02-25 2003-08-27 Minebea Co., Ltd. Machine électrique tournante avec bobines à rebords prolongés
US20040061410A1 (en) * 2002-07-16 2004-04-01 Japan Servo Co., Ltd. Permanent magnet type electric rotating machine
DE10259090A1 (de) * 2002-12-17 2004-07-22 Siemens Ag Elektrische Maschine und Verfahren zur Herstellung einer elektrischen Maschine
DE20308665U1 (de) * 2003-06-03 2004-12-30 Minebea Co., Ltd. Innenläufer-Elektromotor
WO2006089543A1 (fr) * 2005-02-28 2006-08-31 Temic Automotive Electric Motors Gmbh Moteur electrique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS596736A (ja) * 1982-07-02 1984-01-13 Matsushita Electric Ind Co Ltd 電動機固定子
FR2804552B1 (fr) * 2000-01-28 2003-01-03 Leroy Somer Procede de fabrication d'un circuit de machine electrique
US7012350B2 (en) * 2001-01-04 2006-03-14 Emerson Electric Co. Segmented stator switched reluctance machine
JP4101552B2 (ja) * 2002-04-30 2008-06-18 本田技研工業株式会社 電動パワーステアリング装置
DE10258218B4 (de) * 2002-12-13 2006-08-17 Grundfos A/S Verfahren und Vorrichtung zum Herstellen von elektrischen Polsegmenteinheiten für den Zusammenbau eines Stators eines Elektromotors
DE10312614A1 (de) * 2003-03-21 2004-10-14 Robert Bosch Gmbh Elektrische Maschine mit in den Stator integrierter Rotorlagerung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1339156A2 (fr) * 2002-02-25 2003-08-27 Minebea Co., Ltd. Machine électrique tournante avec bobines à rebords prolongés
US20040061410A1 (en) * 2002-07-16 2004-04-01 Japan Servo Co., Ltd. Permanent magnet type electric rotating machine
DE10259090A1 (de) * 2002-12-17 2004-07-22 Siemens Ag Elektrische Maschine und Verfahren zur Herstellung einer elektrischen Maschine
DE20308665U1 (de) * 2003-06-03 2004-12-30 Minebea Co., Ltd. Innenläufer-Elektromotor
WO2006089543A1 (fr) * 2005-02-28 2006-08-31 Temic Automotive Electric Motors Gmbh Moteur electrique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2388887A2 (fr) 2010-05-18 2011-11-23 Aumann GMBH Chaîne de pôles
DE102011011809A1 (de) 2010-05-18 2011-11-24 Aumann Gmbh Polkette

Also Published As

Publication number Publication date
DE102006017081A1 (de) 2007-03-22
DE112006001172A5 (de) 2008-02-07

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