EP2997646A1 - Dispositif d'entraînement, en particulier dispositif de commande dans un véhicule - Google Patents

Dispositif d'entraînement, en particulier dispositif de commande dans un véhicule

Info

Publication number
EP2997646A1
EP2997646A1 EP14714688.0A EP14714688A EP2997646A1 EP 2997646 A1 EP2997646 A1 EP 2997646A1 EP 14714688 A EP14714688 A EP 14714688A EP 2997646 A1 EP2997646 A1 EP 2997646A1
Authority
EP
European Patent Office
Prior art keywords
bearing
clamping
drive device
clamping ring
motor shaft
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.)
Withdrawn
Application number
EP14714688.0A
Other languages
German (de)
English (en)
Inventor
Richard Hurst
Norbert Wegner
Andreas Saum
Alexander Dudek
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.)
Robert Bosch GmbH
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 EP2997646A1 publication Critical patent/EP2997646A1/fr
Withdrawn legal-status Critical Current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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • 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
    • H02K7/08—Structural association with bearings
    • H02K7/081—Structural association with bearings specially adapted for worm gear drives

Definitions

  • the invention relates to a drive device, in particular to an adjusting device in a vehicle.
  • Propulsion devices are known in vehicles, which are used for example as wiper drives, windows, seat adjusters, etc. and have an electric drive motor which is coupled via a transmission with a component to be adjusted.
  • a windshield wiper for a vehicle which has an electric wiper motor, which is coupled via a transmission with an output shaft, on which a wiper arm is seated.
  • the motor shaft of the wiper arm has a worm, which meshes with a worm wheel of the transmission.
  • a push rod and a crank the rotational movement of the worm wheel in a
  • the invention is based on the object with simple constructive
  • the drive device can be used as a small electric drive, preferably for units in vehicles, for example as a wiper drive, as a window or Wegversteller.
  • the drive device has an electric drive motor, it also being possible for a transmission connected downstream of the drive motor to be present in the drive device, and the drive motor and the transmission to form a coherent structural unit.
  • the motor shaft of the electric drive motor is rotatably received in at least two bearings in a housing.
  • a bearing is designed as a fixed bearing or as a movable bearing with axial one-sided support, for example, by a stop on the motor shaft rests against a bearing inner ring of the bearing.
  • the bearing can, for example, as a tapered roller bearing or
  • Angular contact ball bearings mounted on the motor shaft without play in X or O arrangement. Furthermore, a clamping ring is provided in the housing of the drive device, which supports this bearing of the motor shaft axially relative to the housing. Since the inner ring of the bearing is firmly connected in at least one axial direction with the motor shaft, the clamping ring can act on the bearing in this direction with an axial force and thus axially supported.
  • the motor shaft is supported on the second bearing, which also in this axial direction either as
  • This bearing can for example be mounted as a tapered roller bearing or angular contact ball bearings on the motor shaft backlash in X or O arrangement.
  • the axial force generated by the clamping ring presses the motor shaft against the second bearing or another stop, for example on the housing, thereby preventing axial play of the motor shaft.
  • the clamping ring provides a structurally simple
  • the clamping ring does not act on the motor shaft directly, but only indirectly via the bearing, so that no friction caused by direct contact between the motor shaft and clamping ring.
  • the clamping ring is received axially displaceable in a receiving space in the housing. This allows, at the Assembly of the drive means to first insert the motor shaft in the housing and then to move the clamping ring axially in the direction of the bearing until the motor shaft is offset by the mounting force in an axial position in which the axial play of the motor shaft is eliminated.
  • the clamping ring is advantageously pressed axially against the bearing with a defined mounting force. In the final position of the clamping ring, which is supported in the housing exerts an axial force on the bearing and thus on the
  • the receiving space is, according to another advantageous
  • a wiper drive is driven.
  • On the motor shaft may be a worm, which meshes with a worm wheel of the transmission, wherein the worm wheel movement is transferable via other transmission components, such as a crank or a rocker.
  • a wiper drive can be realized with a rotary pendulum movement of an output shaft, on which a wiper arm is seated.
  • the worm on the motor shaft is located on the section of the motor shaft, which lies outside of the motor housing and protrudes through a central recess in the clamping ring.
  • Tensioning tabs are adjacent to a arranged on the peripheral side clamping portion, which is designed, for example, bent over as a speed groove and an axial and a radial
  • clamping tabs act on a bearing outer ring of the
  • Clamps are applied to the bearing with tension and transmit an axial force to the bearing and the motor shaft.
  • the clamping ring is advantageously made of sheet metal or metal.
  • Clamping section and the clamping straps are preferably integral with the
  • Fig. 2 is a receiving space for receiving a clamping ring in one
  • FIG. 3 is a clamping ring in a perspective view
  • Fig. 5 is a clamping ring in yet another embodiment.
  • a drive device 1 is shown, which is an electrical
  • the drive device 1 can be used as a control device in motor vehicles, for example as Windscreen wiper device, as a window or for seat adjustment.
  • the motor shaft 4 of the drive motor 2 is a carrier of a screw 5, which meshes with a worm wheel of the transmission 3 and thereby the
  • the drive motor 2 is designed as a permanent-magnet synchronous motor and has in a motor housing 6, which forms a pole housing, an armature 7 with energizable coils on the motor shaft 4, which is rotatably mounted in bearings 8 and 9. On the inside of the motor housing 6 permanent magnets 10 are arranged, with the magnetic field of the coil in the armature. 7
  • the coils in the armature 7 are connected via a
  • Commutation 1 1 powered.
  • the first bearing 8 and second bearing 9 are each formed as a movable bearing and supported axially via a stop 14 and 15 respectively on the motor shaft 4 in the direction of the intermediate armature 7.
  • the bearing 9 is axially secured by a clamping ring 16 which is inserted into the receiving space 13 in the gear housing 12 and the bearing outer ring of the bearing 9 axially in the direction of the armature. 7
  • the drive motor 2 is connected with its motor housing 6 to the transmission housing 12 of the transmission 3.
  • the clamping ring 16 is pushed onto the motor shaft 4 and inserted into the receiving space 13 in the gear housing 12 according to arrow 17 (FIG. 1).
  • the clamping ring 16 acts in this case the bearing outer ring of the bearing 9 with an axial force which is directed to the armature 7.
  • the assembly takes place with a defined axial force, which is sufficient to eliminate clearance or tolerances, for example play in the ball bearings of the bearings 8 and 9 and length tolerances.
  • a clamping ring 16 is shown in a first embodiment.
  • the clamping ring 16 has on its radially outer side a circumferential clamping portion 18, which is designed bent over and has an axial and a radial direction component.
  • Clamping portion 18 is angled, for example, at an angle of approximately 45 ° relative to the plane of the clamping ring.
  • the clamping portion 18 is integrally formed with the clamping ring 16.
  • clamping straps are formed and rise above the clamping ring plane.
  • the clamping ring 16 is shown in a further embodiment.
  • the arranged on the outer circumference clamping portion 18 has openings in which the clamping plates 19 are arranged, which are thus radially in the same height as the clamping portion 18.
  • Embodiments according to FIGS. 3 and 4 are the clamping plates 19 via an end face of the clamping ring and the clamping portion 18 via the opposite end face of the clamping ring on.
  • a clamping ring 16 is arranged with a on the outer circumference
  • the clamping ring 16 is formed without tension or spring tabs. In the assembled state, the end face of the clamping ring 16 bears against the bearing of the motor shaft and supports the bearing axially.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne un dispositif d'entraînement, en particulier un dispositif de commande dans un véhicule. Ce dispositif comprend un moteur d'entraînement électrique dont l'arbre est monté de manière à pouvoir tourner dans des paliers. Une bague de serrage est disposée dans un carter et soutient axialement un palier de l'arbre du moteur.
EP14714688.0A 2013-05-17 2014-03-31 Dispositif d'entraînement, en particulier dispositif de commande dans un véhicule Withdrawn EP2997646A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013209202.4A DE102013209202A1 (de) 2013-05-17 2013-05-17 Antriebseinrichtung, insbesondere Stelleinrichtung in einem Fahrzeug
PCT/EP2014/056474 WO2014183919A1 (fr) 2013-05-17 2014-03-31 Dispositif d'entraînement, en particulier dispositif de commande dans un véhicule

Publications (1)

Publication Number Publication Date
EP2997646A1 true EP2997646A1 (fr) 2016-03-23

Family

ID=50424242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14714688.0A Withdrawn EP2997646A1 (fr) 2013-05-17 2014-03-31 Dispositif d'entraînement, en particulier dispositif de commande dans un véhicule

Country Status (5)

Country Link
US (1) US10014742B2 (fr)
EP (1) EP2997646A1 (fr)
CN (1) CN105229901A (fr)
DE (1) DE102013209202A1 (fr)
WO (1) WO2014183919A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015213022A1 (de) * 2015-07-13 2017-01-19 Bühler Motor GmbH Elektromotor
DE102015213021A1 (de) * 2015-07-13 2017-01-19 Bühler Motor GmbH Elektromotor
DE102020209499A1 (de) 2020-07-28 2022-02-03 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Elektromotor
DE102020210945A1 (de) 2020-08-31 2022-03-03 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Elektromotor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804328A1 (de) * 1998-02-04 1999-08-12 Bosch Gmbh Robert Axiale Fixierung eines eine Welle aufnehmenden Wälzlagers
CN202713033U (zh) * 2012-06-25 2013-01-30 比亚迪股份有限公司 一种防轴承轴向窜动的电机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH240887A (de) * 1944-10-23 1946-01-31 Oerlikon Maschf Einrichtung zum federnden Begrenzen des Längsspiels der in Wälzlagern laufenden Welle von Elektrokleinmaschinen.
EP1207614A1 (fr) * 2000-11-17 2002-05-22 Siemens Aktiengesellschaft Dispositif pour rattrapage du jeu axial
US6952061B2 (en) * 2002-11-28 2005-10-04 Honda Motor Co., Ltd Motor drive unit
DE10324621A1 (de) * 2003-05-28 2004-12-16 Robert Bosch Gmbh Elektrische Maschine
DE102007043527A1 (de) * 2007-09-12 2009-03-19 Robert Bosch Gmbh Elektromotor
CN101340119B (zh) * 2008-08-28 2010-08-25 中国航空工业第一集团公司南京机电液压工程研究中心 电驱动涡轮冷却器的轴承预紧结构
DE102009054720A1 (de) 2009-12-16 2011-06-22 Robert Bosch GmbH, 70469 Antriebseinrichtung, insbesondere für eine Scheibenwischvorrichtung in einem Fahrzeug

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804328A1 (de) * 1998-02-04 1999-08-12 Bosch Gmbh Robert Axiale Fixierung eines eine Welle aufnehmenden Wälzlagers
CN202713033U (zh) * 2012-06-25 2013-01-30 比亚迪股份有限公司 一种防轴承轴向窜动的电机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014183919A1 *

Also Published As

Publication number Publication date
US10014742B2 (en) 2018-07-03
DE102013209202A1 (de) 2014-11-20
US20160099626A1 (en) 2016-04-07
WO2014183919A1 (fr) 2014-11-20
CN105229901A (zh) 2016-01-06

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