WO2004042900A1 - Antriebsvorrichtung für verstelleinrichtungen in kraftfahrzeugen - Google Patents
Antriebsvorrichtung für verstelleinrichtungen in kraftfahrzeugen Download PDFInfo
- Publication number
- WO2004042900A1 WO2004042900A1 PCT/DE2003/003735 DE0303735W WO2004042900A1 WO 2004042900 A1 WO2004042900 A1 WO 2004042900A1 DE 0303735 W DE0303735 W DE 0303735W WO 2004042900 A1 WO2004042900 A1 WO 2004042900A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drive device
- housing
- motor
- carrier element
- axial field
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 description 7
- 230000010354 integration Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- 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
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/182—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to stators axially facing the rotor, i.e. with axial or conical air gap
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1675—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at only one end of the rotor
-
- 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
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Definitions
- the invention relates to a drive device for adjusting devices in motor vehicles according to the preamble of claim 1.
- an electrical machine designed as an axial field motor or generator with a rotor rotatably mounted in a housing and with a rotor shaft led out of the housing is known.
- a fixed number of electromagnet components are arranged in the housing at a distance from the rotor shaft axis of rotation at uniform angular intervals, each of which has a coil core carrying a coil winding made of one or more conductors.
- the pole faces of the end faces of the coil cores are aligned with the pole faces of permanent magnets arranged in a rotationally fixed manner in or on the rotor, each of which has an opposite polarity in succession in the circumferential direction.
- the coil cores of the electromagnet components are arranged parallel to the axis of rotation of the rotor shaft in the interior of the housing, so that their opposite end faces each lie in two spaced planes that run perpendicular to the axis of rotation of the rotor shaft.
- connection of the disk-shaped rotors to the rotor shaft and their mounting in the housing of the electrical machine means that the rotors and the stator must be completely arranged or mounted in the housing for testing and actuation.
- the support and mounting of the rotor shaft on two sides of the housing require exact coordination between the distance between the support points on the housing and the height of the stator and the disk-shaped rotors, as a result of the axial len support of the rotor shaft the risk of overdetermination of the bearing and consequently high friction losses result.
- the invention has for its object to provide a drive device from an axial field motor and a gearbox, in which the axial field motor is functional even without a motor housing and its essential properties can be tested, the structure of which rules out overdeterminations and thus high friction losses or complex dimensioning, no exact measurement required to maintain the air gap to the rotor disks and which enables a connection with a self-locking or non-self-locking gear, and which enables a flat, space-saving design.
- the solution according to the invention provides an axial field motor which can also run without a motor housing and can therefore be checked in its essential properties and whose structural design rules out overdeterminations and thus high friction losses or costly oversizing. Since the radial forces emanating from the motor shaft are introduced into the housing of the drive device or the axial field motor via axially extending positive locking areas of radial webs, no parts with their tolerances are required in the axial direction for mounting the motor shaft, so that no calibration with thin shim washers or the like necessary is. Compliance with the air gaps depends, for example, only on a coordination of the motor shaft and a bearing bush supported on the circumference of the axial field motor for receiving the motor shaft.
- the design of the axial field motor enables connection with different gear types and, through the integration of self-locking properties in the axial field motor, a connection with self-locking or non-self-locking gears.
- the integration of the motor shaft in the axial field motor also enables an extremely flat design and, through the connection of the gearbox to the axial field motor, a very compact design of the drive device.
- the concept according to the invention for mounting the motor shaft creates a virtual motor axis with its circumferential support with webs pointing radially to the center of the axial field motor, so that no axial support of the motor shaft is required and thus the height build-up of the functional parts of the axial field motor is irrelevant. This not only eliminates the risk of over-determinations, which leads to considerable friction losses or very high accuracy requirements with very tight tolerances, but the axial field motor is fully functional even without a housing and can therefore be pre-checked and adjusted in this state.
- the radial webs are preferably supported on the circumference of the axial field motor and have radially directed end ribs which can be connected in the axial direction to the housing of the axial field motor or the drive device by preferably engaging in form-locking elements of the housing.
- axially extending positive locking areas of the radial webs can engage in recesses in the housing.
- the radial webs are designed as part of a carrier element and protrude from a base body receiving the motor shaft.
- the carrier body can be inserted into a drive housing via the radially directed end ribs distributed around the circumference and projecting from the base body of the carrier element, but the functionality of the axial field motor does not depend on the connection to a drive housing.
- a bearing bush integrated in the base body of the carrier element for receiving the motor shaft can either be formed as part of the base body of the carrier element or can be inserted into a corresponding holder of the base body of the carrier element.
- a free-standing outer collar of the bearing bush which lies against an end face of the carrier element, serves to fix the position of the bearing bush within the carrier element.
- the carrier element is preferably part of the stator of the axial field motor, ie the integration of electromagnetic components in the carrier element expands the function of the carrier element beyond a static function, so that both the number of parts and the manufacturing outlay are reduced.
- connection of the carrier element and thus of the stator to a housing of the axial field motor or a housing accommodating both the axial field motor and a gear of the drive device are used by the radially directed end ribs of the radial webs, which are preferably elastically supported on the housing of the axial field motor or the drive device.
- An at least axially elastic ring can be arranged between the radially directed end ribs and the housing of the axial field motor or the drive device, which takes up tolerances of the two housing halves of a two-part housing and enables an axial play-free assembly.
- the motor shaft is connected to at least one rotor disk arranged on one end face of the stator, while the other end face of the stator forms a magnetic yoke.
- the motor shaft is preferably connected to rotor disks which are arranged on both end faces of the stator and on which permanent magnets facing the stator are arranged with alternating polarity in the circumferential direction.
- the motor shaft is connected to a pinion of the gear of the drive device designed as a spur gear.
- the spur gear has a gear meshing with the pinion of a first gear stage, which is coaxially connected to a second pinion of a second gear stage which meshes with a second gear connected to the drive element of the adjusting device.
- the drive device is preferably arranged in a double-shell housing, one housing shell of which is connected to the radially directed end ribs of the carrier element via the elastic ring. Furthermore, the housing shell receiving the elastic ring has fastenings with which the drive device can be connected to a receiving device.
- the drive device according to the invention is characterized by simple, large tolerances of the individual components, in which no consideration is given to a possible before the axial field motor has to be removed. In addition to the resulting low friction losses, the drive device is distinguished by the absence of disturbing noises.
- FIG. 1 shows a longitudinal section through the drive device according to the invention with an axial field motor and a spur gear.
- Figure 2 is an exploded view of the axial field motor with a stator, two rotor disks, a bearing bush for receiving the motor shaft and a wrap spring brake.
- FIG. 3 shows a schematic perspective illustration of the carrier element with a coil former to be inserted
- FIG. 4 shows a schematic perspective illustration of the carrier element with axially directed interlocking elements and a schematically illustrated counter-interlocking element on the housing;
- FIGS. 6 and 7 show two different perspective views of the drive device with axial field motor and spur gear and a cable winding roller of a cable window lifter;
- Fig. 8 is a plan view of the drive device according to FIGS. 6 and 7 and
- Fig. 9 is a perspective view of the housing of the drive device with contained therein axial field motor and spur gear.
- the drive device for an adjusting device in a motor vehicle, for example for a cable window lifter for lifting and lowering a window pane in a motor vehicle door.
- the drive device contains an axial Field motor 1 with a stator 2 and rotor disks 3, 3 'arranged on both end faces of the stator 2, a gear 6 designed as a spur gear and a drive element of the adjusting device in the form of a cable winding roller 7.
- the drive device in particular from a flat design, which is due to the design of the axial field motor 1 and by using a spur gear 6 and the axially nested structure of the functional elements of the drive device.
- a tension-free construction without overdeterminations is guaranteed, the essential features of which will be explained below.
- the axial field motor 1 is composed of a stator 2 and two rotor disks 3, 3 ′ arranged on both sides of the end faces 27, 28 of the stator 2.
- One rotor disk 3 is connected to a pinion 61, which forms the output of the axial field motor 1 and the input of the spur gear 6.
- the rotor disks 3, 3 ' are connected to a motor shaft 5, which is supported in a bearing bush 4, which is not supported axially, but rather via a star-shaped carrier element 20, which at the same time forms the mechanical base body of the stator 2 of the axial field motor 1.
- the carrier element 20 consists of a base body 21,. a plurality of webs 22 protrude radially, between which inserts 23 are formed for accommodating coil formers 25, which form two north and two south poles through alternating winding connections, so that two north poles follow two south poles.
- the base body 21 has a cylindrical opening or bore 24, which is either designed as a bearing bush for receiving the motor shaft 5 or into which a bearing bush 4 according to FIGS. 1 and 2, in which the motor shaft 5 is mounted, can be inserted.
- the bearing bush 4 has a free-standing outer collar 40 which bears against one end face 26 of the carrier element 20 and thus fixes the position of the bearing bush 4.
- the radial webs 22 have at their outer ends radially directed interlocking elements in the form of radially directed end ribs 22a, which preferably via an elastic ring 10 - as explained below with reference to Figures 6 and 7 - in the interlocking areas of the housing 9 of the axial field motor or driving device intervention. Furthermore, axially directed interlocking elements in the form of projections 22b and webs 22c extending over the length of the radial webs 22 are provided, which together with the radially directed end ribs 22a introduce the radial forces emanating from the motor shaft 5 into the housing 9.
- the counter-positive locking elements of the housing 9 are correspondingly designed as recesses and absorb the motor forces with their stop faces.
- the webs 22c are assigned corresponding recesses 95 of the bottom contour of the housing 9, the ends of which are preferably closed for the radial guidance of the carrier element 20.
- the rotor disks 3, 3 ' face the end faces 26, 27 of the carrier element 20 with the formation of small air gaps and have permanent magnets 30, 30' with alternating polarity in the circumferential direction, which form the magnetic inference for the magnetic field of the coils of the stator 2.
- the motor shaft 5 is supported exclusively via the bearing bush 4 and the carrier element 20 on the circumference of the drive device, i. H. there is no axial support for the motor shaft 5 with respect to the housing 9, but only support over the circumference of the housing 9.
- the axial field motor 1 is thus a functional part that is independent of the housing 9 of the drive device, the functions of which can be checked in terms of their function without the housing 9 and also without the gear 6, and the functional parts of which can be corrected or replaced if necessary.
- the axial field motor 1 is connected to the housing 9 of the drive device via an elastic ring 10 which, according to FIG. 6, is placed on the radially directed end ribs 22a of the radial webs 22 of the carrier element 20 and which, according to FIG. 1, is attached to the one housing shell 91 of the two-shell housing 9 supports.
- a braking device in the form of a wrap spring brake with a wrap spring 8, which is provided between the rotor disk 3 and a pinion 61 of an output side connected to the rotor disk 3
- Gearbox is arranged and which bears against the outer wall of the fixed bearing bush 4 in which the motor shaft 5 is rotatably supported.
- the wrap spring 8 is actuated via its radially outwardly projecting spring ends, which lie radially opposite one another.
- the wrap spring 8 is actuated by means of the pinion 61 in both directions of rotation via one of its spring ends in such a way that it is clamped on the outer edge of the bearing bush 4 when a torque introduced from the driven side is applied.
- corresponding projections or shift claws 610 protrude downward from the pinion 61, corresponding to the perspective illustration according to FIG. 2, which cooperate with one of the spring ends of the wrap spring 8. This locks the wrap spring brake when there is a torque on the output side and prevents a rotary movement due to its clamping action.
- the shifting claws 610 of the pinion 61 act on the ends of the wrap spring 12 with an output-side torque for locking the wrap spring brake in order to pull them together, that is to say to clamp them against the outer wall of the bearing bush 10.
- Each of the two spring ends of the wrap spring 8 is also assigned a switching range of the rotor disk 3, which releases the wrap spring brake, ie, releases the wrap spring 8 when the axial field motor 2 is energized.
- one or the other switching range acts on the associated spring end of the wrap spring 8 in order to lift it from the outer wall of the bearing bush 4 to such an extent that it no longer counteracts a rotary movement and only minimal losses in efficiency occur during operation of the axial field motor 2 .
- Further details on the structure and function of the wrap spring brake can be found in German patent application 102 36 372.2, the content of which is referred to.
- the first gear stage contains the pinion 61 connected to the motor shaft 5, which meshes with a gear 62 mounted on an axis 65.
- the pinion 63 which is arranged coaxially to the gear 62, of a second gear stage of the spur gear 6 meshes with a gear 64 rotating about an axis 66 of the second gear stage, which in turn is coupled to the drive element 7 of the adjusting device driven by the drive device, which in the exemplary embodiment shown here a cable winding roller 7 for a cable window lifter.
- FIG. 6 and 7 show the different perspective views of the axial field motor and the spur gear as well as FIG. 8 is a plan view of the functional parts of the drive device arranged in the housing 9, this plan view illustrating the circumferential support of the motor shaft 5.
- FIG. 9 shows a perspective view of the housing 9 enclosing the drive device, which is composed of two housing shells 91, 92 as described above.
- the drive device can be electrically connected to a power supply and / or a control device via a plug connection 93, while the mechanical connection of the drive device to a receiving device takes place via fastening elements 94 which are arranged on the one housing shell 91.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50311382T DE50311382D1 (de) | 2002-11-07 | 2003-11-06 | Antriebsvorrichtung für verstelleinrichtungen in kraftfahrzeugen |
US10/533,856 US20060061230A1 (en) | 2002-11-07 | 2003-11-06 | Drive device provided for operating adjusting devices in motor vehicles |
EP03778259A EP1563587B1 (de) | 2002-11-07 | 2003-11-06 | Antriebsvorrichtung für verstelleinrichtungen in kraftfahrzeugen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10253071A DE10253071A1 (de) | 2002-11-07 | 2002-11-07 | Antriebsvorrichtung für Verstelleinrichtungen in Kraftfahrzeugen |
DE10253071.8 | 2002-11-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004042900A1 true WO2004042900A1 (de) | 2004-05-21 |
Family
ID=32185653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/003735 WO2004042900A1 (de) | 2002-11-07 | 2003-11-06 | Antriebsvorrichtung für verstelleinrichtungen in kraftfahrzeugen |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060061230A1 (de) |
EP (1) | EP1563587B1 (de) |
DE (2) | DE10253071A1 (de) |
WO (1) | WO2004042900A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1684399A3 (de) * | 2005-01-24 | 2006-11-08 | Fujitsu General Limited | Stator eines Scheibenläufermotors und dessen Herstellungsverfahren |
EP1835597A3 (de) * | 2006-03-13 | 2007-09-26 | ISCA Innovations, Inc. | Bürstenloser Elektromotor |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080271859A1 (en) * | 2004-06-25 | 2008-11-06 | B&D Australia Pty Ltd | Door Controller and Locking Mechanism |
US8131413B2 (en) * | 2007-09-25 | 2012-03-06 | Max Power Motors, Llc | Electric motor and conversion system for manually powered vehicles |
FR2926935B1 (fr) * | 2008-01-30 | 2012-06-08 | Tecddis | Machine electrique a flux axial et a aimants permanents |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02214453A (ja) * | 1989-02-13 | 1990-08-27 | Canon Electron Inc | モータのコイル保持構造及び前記コイル保持構造を用いたダブルロータ型モータ |
WO2000031859A1 (en) * | 1998-11-23 | 2000-06-02 | Jung Hun Lee | Small portable flat generator |
US6232690B1 (en) * | 1997-03-04 | 2001-05-15 | Papst-Motoren Gmbh & Co. Kg | Electronically commutated DC |
DE10118128A1 (de) * | 2001-04-11 | 2002-10-17 | Sunonwealth Electr Mach Ind Co | Motor mit doppelseitiger Sensorfläche |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU68101A1 (de) * | 1973-07-26 | 1973-11-22 | ||
US4297604A (en) * | 1979-05-11 | 1981-10-27 | Gen-Tech, Inc. | Axial air gap alternators/generators of modular construction |
US4866321A (en) * | 1985-03-26 | 1989-09-12 | William C. Lamb | Brushless electrical machine for use as motor or generator |
US4864176A (en) * | 1988-07-29 | 1989-09-05 | Rem Technologies, Inc. | Stator support structure with stamped end plates |
US5357272A (en) * | 1991-07-29 | 1994-10-18 | Canon Kabushiki Kaisha | Deflection scanner which is elastically fixed in its housing |
JPH0548557U (ja) * | 1991-11-21 | 1993-06-25 | マブチモーター株式会社 | 小型モータ |
US5479058A (en) * | 1994-04-19 | 1995-12-26 | Seidou; Yoshio | Geared motor |
JP3864504B2 (ja) * | 1997-07-23 | 2007-01-10 | アイシン精機株式会社 | サンルーフ用駆動装置 |
CA2246367A1 (en) * | 1998-09-02 | 2000-03-02 | Phillip G. Adams | A two-phase stepper motor |
FR2808759B1 (fr) * | 2000-05-10 | 2005-08-26 | Koyo Seiko Co | Appareil de direction assistee electrique |
JP3822462B2 (ja) * | 2000-07-27 | 2006-09-20 | アスモ株式会社 | ギヤードモータ |
-
2002
- 2002-11-07 DE DE10253071A patent/DE10253071A1/de not_active Withdrawn
-
2003
- 2003-11-06 WO PCT/DE2003/003735 patent/WO2004042900A1/de active Application Filing
- 2003-11-06 DE DE50311382T patent/DE50311382D1/de not_active Expired - Lifetime
- 2003-11-06 US US10/533,856 patent/US20060061230A1/en not_active Abandoned
- 2003-11-06 EP EP03778259A patent/EP1563587B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02214453A (ja) * | 1989-02-13 | 1990-08-27 | Canon Electron Inc | モータのコイル保持構造及び前記コイル保持構造を用いたダブルロータ型モータ |
US6232690B1 (en) * | 1997-03-04 | 2001-05-15 | Papst-Motoren Gmbh & Co. Kg | Electronically commutated DC |
WO2000031859A1 (en) * | 1998-11-23 | 2000-06-02 | Jung Hun Lee | Small portable flat generator |
DE10118128A1 (de) * | 2001-04-11 | 2002-10-17 | Sunonwealth Electr Mach Ind Co | Motor mit doppelseitiger Sensorfläche |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 014, no. 515 (E - 1000) 13 November 1990 (1990-11-13) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1684399A3 (de) * | 2005-01-24 | 2006-11-08 | Fujitsu General Limited | Stator eines Scheibenläufermotors und dessen Herstellungsverfahren |
EP1835597A3 (de) * | 2006-03-13 | 2007-09-26 | ISCA Innovations, Inc. | Bürstenloser Elektromotor |
US7471026B2 (en) | 2006-03-13 | 2008-12-30 | Isca Innovatons, Llc | Brushless electric motor |
Also Published As
Publication number | Publication date |
---|---|
DE10253071A1 (de) | 2004-05-27 |
DE50311382D1 (de) | 2009-05-14 |
EP1563587A1 (de) | 2005-08-17 |
US20060061230A1 (en) | 2006-03-23 |
EP1563587B1 (de) | 2009-04-01 |
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