WO2011067308A2 - Moteur électrique - Google Patents

Moteur électrique Download PDF

Info

Publication number
WO2011067308A2
WO2011067308A2 PCT/EP2010/068680 EP2010068680W WO2011067308A2 WO 2011067308 A2 WO2011067308 A2 WO 2011067308A2 EP 2010068680 W EP2010068680 W EP 2010068680W WO 2011067308 A2 WO2011067308 A2 WO 2011067308A2
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
electric motor
motor according
locking device
engagement element
Prior art date
Application number
PCT/EP2010/068680
Other languages
German (de)
English (en)
Other versions
WO2011067308A3 (fr
Inventor
Torsten Henke
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
Priority to EP10788293A priority Critical patent/EP2507898A2/fr
Publication of WO2011067308A2 publication Critical patent/WO2011067308A2/fr
Publication of WO2011067308A3 publication Critical patent/WO2011067308A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/114—Structural association with clutches, brakes, gears, pulleys or mechanical starters with dynamo-electric clutches in combination with brakes

Definitions

  • the present invention relates to an electric motor for a power steering of motor vehicles.
  • the electric motor according to the invention with the features of claim 1 has the advantage that in this case the components are arranged to each other such that the volume of construction is drastically reduced and thereby the
  • the electric motor on a rotor and a locking device for blocking a rotation of the rotor, wherein the locking means is arranged in the axial direction of the rotor coaxially on a central axis of the rotor.
  • the locking device can on a drive side opposite end side of the rotor or on the
  • Drive side of the rotor can be arranged coaxially to the central axis. Due to the coaxial with the rotor center axis arranged locking device reduces the space requirement considerably. Further, the installation location of the electric motor can be selected variable according to the available installation space on the steering column in the passenger compartment or on the rack in the engine compartment.
  • the electric motor further comprises a control unit for controlling the electric motor, wherein the
  • Locking device is arranged axially between the rotor and the control unit and wherein the control device is arranged coaxially to the rotor and the locking device. Due to the coaxial arrangement and integration of the three
  • the locking device comprises an actuator with a
  • the input element comprises at least one pin, which engages in the recess provided directly in the rotor on the inside of the rotor. Due to the training of
  • Locking device and the direct engagement in the rotor a particularly simple structure is achieved and further realized a reduction in the number and cost of the components. Furthermore, a weight reduction of the assembly and thus a contribution to the consumption and emission reduction of the vehicle can be realized.
  • Engagement element an even number of pins and corresponding recesses provided in the rotor. This allows a particularly rapid and secure locking in less than a 360 ° rotation period of the rotor and also acting on each individual pin Scherruc. Locking force reduced. If z. B. four pins and four accordingly
  • Recesses are arranged evenly distributed, a maximum rotation time over 90 ° is possible for a locking operation.
  • the actuator comprises a magnetic circuit, in particular a pot magnet, which moves the engagement element in the axial direction of the central axis of the rotor.
  • a simple and inexpensive operation of the engagement element is realized in a compact design.
  • the actuator comprises a linear drive which moves the engagement element in the axial direction of the central axis of the rotor. The use of the linear drive achieves a particularly reliable, low-noise and maintenance-free actuator function with a minimum construction volume. Furthermore, comparatively large blocking forces can also be transmitted.
  • Locking means arranged on the end side of the rotor spoked wheel and a pin member for engagement with the spoked wheel. This will be the
  • the engagement element is by means of one or more
  • the power steering apparatus can be operated with any types of electric motors.
  • all types of permanently excited brushless (PSM) motors with a rotor with spoke magnet piece or with ring magnet or embedded magnet piece can be used with particular preference.
  • Figure 1 is a schematically simplified sectional view of a
  • the electric motor 1 comprises a rotor 10 with a rotor shaft 14, a stator 13 and a blocking device 20 which are arranged in the interior of a housing 4 in the axial direction of a central axis M.
  • an output element 15 is further fixed for transmitting a power output of the electric motor 1.
  • the locking device 20 is arranged coaxially on the middle axis M of the rotor 10 on an end face 12 opposite the drive side 11 of the rotor 10.
  • the electric motor 1 furthermore comprises a control unit 3 for controlling the electric motor 1, which is coaxial to the rotor 10 and to the
  • Locking device 20 is arranged and fixed to the locking device 20.
  • the locking device 20 has an actuator 21 with an engagement element 22 and a recess 23 which is formed on the end side 12 of the rotor 10.
  • the actuator 21 has a fixed to the control unit 3 pot magnet 25 and an armature 27 disposed in its interior, which is arranged rotationally symmetrical on the central axis M and secured against rotation.
  • a biasing element 26 is arranged, which, as shown in Figure 1, is preferably designed as a spring element.
  • Engagement element 22 arranged pin 24 directly into the recess 23 in the rotor 10 and locks the rotor rotation.
  • the duration of the energization must be at least one rotation period of the rotor 10 so that the pin 24 can engage in the recess 23 in the rotor 10.
  • the armature 27 can be energized so that the
  • Engagement element 22 is permanently attracted by a magnetic field and the pin 24 of the engagement element 20 is engaged only when power is switched off and missing magnetic field due to the biasing force of the biasing member 26 axially in the direction of arrow P in the recess 23. Upon renewed energization of the armature 27, the pin of the engagement member 22 is disengaged in the opposite axial direction again from the recess.
  • Engagement member 22 instead of a pin 24 also have an even number of pins. This makes it possible to reduce the energization time with an ever greater number of pins to an ever smaller part of a partial rotation period of the rotor 10, so that the axial engagement in the corresponding recesses in the rotor 10 and thus the blocking takes place faster.
  • the actuator 21 may also comprise a linear drive, which allows a particularly quiet and reliable operation of the engagement member 22.
  • the linear drive is essentially maintenance-free and has a high durability even when transmitting higher blocking forces.
  • the locking means 20 may alternatively comprise a spoked wheel disposed on the end side 12 of the rotor 10 with a pin member for engaging the spoked wheel. This proven component pairing is preferably characterized by a high reliability and low parts costs.
  • the axial guidance of the engagement element 22 can be substantially improved by the alternative use of one or more guide devices.
  • the electric motor 1 provides a compact, space-saving and in its entirety axially arranged and actuated assembly for an electric power steering ready, which due to their small radial and axial Space significantly improved placement in the vehicle both in the area of the steering column and in the rack allows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Lock And Its Accessories (AREA)
  • Synchronous Machinery (AREA)

Abstract

L'invention concerne un moteur électrique comportant un rotor (10) et un dispositif de blocage (20) destiné à bloquer une rotation du rotor (10), le dispositif de blocage (20) étant disposé coaxialement sur un axe médian (M) du rotor (10) dans la direction axiale du rotor (10), notamment sur un côté terminal (12) du rotor (10) opposé à un côté d'entraînement (11).
PCT/EP2010/068680 2009-12-04 2010-12-02 Moteur électrique WO2011067308A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10788293A EP2507898A2 (fr) 2009-12-04 2010-12-02 Moteur électrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009047502.8 2009-12-04
DE200910047502 DE102009047502A1 (de) 2009-12-04 2009-12-04 Elektromotor

Publications (2)

Publication Number Publication Date
WO2011067308A2 true WO2011067308A2 (fr) 2011-06-09
WO2011067308A3 WO2011067308A3 (fr) 2012-02-09

Family

ID=43971950

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/068680 WO2011067308A2 (fr) 2009-12-04 2010-12-02 Moteur électrique

Country Status (3)

Country Link
EP (1) EP2507898A2 (fr)
DE (1) DE102009047502A1 (fr)
WO (1) WO2011067308A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9484794B2 (en) * 2012-04-20 2016-11-01 Louis J. Finkle Hybrid induction motor with self aligning permanent magnet inner rotor
DE202014101158U1 (de) * 2014-03-13 2015-06-16 BROSE SCHLIEßSYSTEME GMBH & CO. KG Antriebskomponente eines Antriebsstrangs eines Kraftfahrzeugschlosses

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE545622A (fr) *
US2757766A (en) * 1955-07-25 1956-08-07 Gen Electric Clutch-brake mechanism for dynamoelectric machines
GB1308252A (en) * 1971-03-25 1973-02-21 Sp K Bjuro Elmash Electrical machines
DE3525208A1 (de) * 1984-07-16 1986-01-23 Japan Strage Battery Co. Ltd., Kyoto Untersetzungsgetriebe
DE3817651A1 (de) * 1988-05-25 1989-12-07 Messerschmitt Boelkow Blohm Redundante antriebsvorrichtung
JP3415275B2 (ja) * 1994-07-08 2003-06-09 カヤバ工業株式会社 電磁アクチュエータ
US6944906B2 (en) * 2002-05-15 2005-09-20 Trico Products Corporation Direct drive windshield wiper assembly
KR100619782B1 (ko) * 2005-03-15 2006-09-06 엘지전자 주식회사 역회전 방지기능을 구비한 하이브리드 인덕션모터
DE102005046618A1 (de) * 2005-09-29 2007-04-12 Zf Friedrichshafen Ag Antriebseinheit mit optimierter Kühlung
DE102007046617A1 (de) * 2007-09-27 2009-04-02 GfA-Antriebstechnik Gesellschaft mit beschränkter Haftung Verfahren zum Überwachen von Elektromotoren mit Federkraftbremse sowie Vorrichtung zum Durchführen dieses Verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
WO2011067308A3 (fr) 2012-02-09
EP2507898A2 (fr) 2012-10-10
DE102009047502A1 (de) 2011-06-09

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