WO2011023285A1 - Module magnétique comportant un anneau magnétique, pour dispositif de détection de couple et/ou d'angle de rotation, et procédé de fabrication - Google Patents

Module magnétique comportant un anneau magnétique, pour dispositif de détection de couple et/ou d'angle de rotation, et procédé de fabrication Download PDF

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Publication number
WO2011023285A1
WO2011023285A1 PCT/EP2010/004869 EP2010004869W WO2011023285A1 WO 2011023285 A1 WO2011023285 A1 WO 2011023285A1 EP 2010004869 W EP2010004869 W EP 2010004869W WO 2011023285 A1 WO2011023285 A1 WO 2011023285A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic ring
sleeve
dome
magnet assembly
support sleeve
Prior art date
Application number
PCT/EP2010/004869
Other languages
German (de)
English (en)
Inventor
Dirk Rachui
Jens Thom
Frank Jerems
Original Assignee
Valeo Schalter Und Sensoren 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 Valeo Schalter Und Sensoren Gmbh filed Critical Valeo Schalter Und Sensoren Gmbh
Publication of WO2011023285A1 publication Critical patent/WO2011023285A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • G01L3/104—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving permanent magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2451—Incremental encoders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/80—Manufacturing details of magnetic targets for magnetic encoders

Definitions

  • the invention relates to a magnetic assembly with a magnetic ring for a torque and / or rotation angle sensor arrangement on a shaft, in particular for the detection of rotational angle or torque-dependent variables on the shaft or between partial waves according to the species of
  • Torsionssystems for example, as part of a steering shaft, a determination of the force exerted on the entire steering shaft torque can be performed, as in particular when used in steering systems of
  • Such a torque sensor usually consists of two units, namely a dynamic unit, which rotates with the steering shaft or the torsion system and a stationary static unit with electronics, which is fixed to the surrounding gear housing.
  • the static sensor unit is connected via a bearing with the dynamic unit, wherein between the transmission housing and the static sensor unit is preferably an electrical connector.
  • the magnetic ring Within the magnet assembly of the torque sensor described above is the magnetic ring, it being known per se that with such magnetic rings, with the magnetic sensor means on a changing with an absolute or relative rotation magnetic field in a
  • Such a magnetic ring can be produced by an injection molding process.
  • the ring magnet produced by injection molding is permanently firmly connected to a metal sleeve and forms the magnet assembly and the
  • Magnet assembly is then in turn permanently connected to the steering shaft.
  • the metal sleeve is important for the handling of the magnet assembly and for the actual attachment to the steering shaft.
  • connection between the ring magnet and the metal sleeve can also be made usually with or without additional media (eg plastic).
  • Torque sensor for detecting the on a steering shaft in one
  • the magnetic flux generated in the gap depends on the rotational angle position of the magnet and the detector of the sensor arrangement, wherein between the partial waves of the shaft, a torsion element is arranged, so that on the shaft
  • connection between the magnetic ring and the carrier sleeve in which the magnetic ring is connected to the carrier sleeve with an adhesive.
  • the bond can not be used in part for a connection of a plastic-bonded magnet with a steel sleeve, if the assembly is exposed to thermal influences, since the different thermal expansion coefficients of the materials may possibly lead to the destruction of the magnet.
  • gluing leads to an increase in the cost of manufacturing the assembly as an additional process.
  • the invention relates to a magnet assembly with a magnetic ring which is mounted by means of a carrier sleeve via a connection geometry on a shaft, in particular for a torque and / or rotation angle sensor arrangement, for example on the steering shaft of a motor vehicle.
  • the magnetic ring is connected radially over the carrier sleeve lying on a connection geometry with the support sleeve, which consists of domes, which are arranged on the circumference of the end face of the magnetic ring and through
  • Forming or form-fitting or non-positively connected to the carrier sleeve can be connected.
  • the dome engage in corresponding holes in the carrier sleeve and according to a second embodiment, the dome engage in corresponding radially incorporated apertures in the carrier sleeve.
  • the domes engage in the carrier sleeve via centering points located on the radially outer entrance of the apertures, wherein the centering can advantageously consist of bevels at the entrance of the apertures. This can be avoided in particular that when inserting the dome in the openings kinking of the dome takes place. According to the invention can thus also be an integration of centering, so that the centering for the exact
  • Positioning of the angular position of the magnetic ring can be used to the support sleeve.
  • Magnetic assembly for producing the positive and / or cohesive
  • the previously proposed plastic-bonded, injection-molded magnetic ring thus preferably has several on one of its end faces Mitmespritzte domes, these dome should be arranged symmetrically to the magnetic poles.
  • the support sleeve accordingly has a sufficiently large collar, which in turn has holes or openings, which are adapted in geometry and number of the number of domes of the magnet ring.
  • the domes of the magnetic ring are guided through the openings (holes or openings) on the collar of the carrier sleeve. Then the regions of the dome projecting beyond the carrier sleeve are deformed by means of a forming process in such a way that a firm connection (analogous to a riveted connection) is produced.
  • Ultrasonic caulking and hot caulking are particularly suitable as forming processes, although other processes are also suitable, provided that they have the
  • connection makes no additional material for the connection, such as adhesive or additional plastic extrusion, between the magnetic ring and the carrier sleeve necessary.
  • the connection is as well
  • connection largely insensitive to temperature changes.
  • the strength of the connection is largely adjustable by the number and geometry of the dome and it is only a small additional height (about 1 mm) necessary for the connection.
  • FIG. 1 shows an exemplary embodiment of a magnetic ring with domes distributed on the frontal circumference
  • Figure 2 is a corresponding to Figure 1 support sleeve with holes
  • Figure 3 a corresponding to Figure 1 support sleeve with radial
  • FIGS. 4A and 4B show two views of an assembly of magnetic ring and carrier sleeve according to Figures 1 and 2,
  • Figures 5A and 5B show two views of centering on the domes of Figure 1 ff and
  • 6A and 6B show two views of an assembly of magnetic ring and carrier sleeve after caulking the dome according to the figures 1 ff.
  • FIG. 1 shows a basic application example of a magnet ring 30 as a component of a magnet assembly for a sensor arrangement described in the introduction to a shaft, for example for rotation angle or torque measurement.
  • FIG. 1 shows an exemplary embodiment of the magnetic ring 30 which has eight domes 31 distributed on the front-side circumference.
  • Figure 2 shows to a corresponding to the figure 1 support sleeve 32 with holes 33 and Figure 3 a support sleeve 34 with radially incorporated apertures 35th
  • FIGS. 4A and 4B show two views of an assembly of the FIG.
  • Figures 5A and 5B show two views of centering on the support sleeve 32, wherein at the openings 35 centering 36 are provided as chamfers, which lead to a centering insertion of the dome 31 in the openings 35 and avoid kinking of the dome 31 and thus an accurate Ensure positioning of the angular position of the magnetic ring 30 to the support sleeve 31.
  • FIGS. 6A and 6B show two views of an assembly of the invention

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

L'invention concerne un module magnétique comportant un anneau magnétique (30) monté sur un axe au moyen d'une douille support (32), notamment pour un dispositif de détection de couple et/ou d'angle de rotation. L'anneau magnétique (30) repose radialement sur la douille support (32) à laquelle il est relié par une géométrie de liaison. Cette douille support (32) est constituée de dômes (31), qui sont disposés sur le pourtour de la face antérieure de l'anneau magnétique (30), des techniques de déformation plastique ayant permis de solidariser ces dômes à la douille support (32; 34) par complémentarité de forme ou par liaison de matière.
PCT/EP2010/004869 2009-08-27 2010-08-09 Module magnétique comportant un anneau magnétique, pour dispositif de détection de couple et/ou d'angle de rotation, et procédé de fabrication WO2011023285A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009039082.0 2009-08-27
DE102009039082A DE102009039082A1 (de) 2009-08-27 2009-08-27 Magnetbaugruppe für eine Drehmoment- und/oder Drehwinkelsensoranordnung mit einem Magnetring und Herstellungsverfahren

Publications (1)

Publication Number Publication Date
WO2011023285A1 true WO2011023285A1 (fr) 2011-03-03

Family

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Family Applications (1)

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PCT/EP2010/004869 WO2011023285A1 (fr) 2009-08-27 2010-08-09 Module magnétique comportant un anneau magnétique, pour dispositif de détection de couple et/ou d'angle de rotation, et procédé de fabrication

Country Status (2)

Country Link
DE (1) DE102009039082A1 (fr)
WO (1) WO2011023285A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150138387A (ko) * 2013-04-05 2015-12-09 발레오 샬터 운트 센소렌 게엠베아 차량의 센서 장치용 자석 유닛 제조 방법, 자석 유닛, 센서 장치 및 차량
JP2019507495A (ja) * 2016-01-15 2019-03-14 ボマテック マネージメント アクチェンゲゼルシャフト マグネットアセンブリ及びこの種のマグネットアセンブリ用の磁性プラスチック部品
US10641670B2 (en) 2016-06-13 2020-05-05 Valeo Schalter Und Sensoren Gmbh Magnet unit for a sensor device of a motor vehicle, sensor device having a magnet unit and motor vehicle having a sensor device
CN112384762A (zh) * 2018-05-08 2021-02-19 法雷奥开关和传感器有限责任公司 用于机动车辆的传感器装置的磁体组件、具有磁体组件的传感器装置以及具有传感器装置的机动车辆

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101872897B1 (ko) * 2011-04-25 2018-06-29 엘지이노텍 주식회사 토크 센서의 로터 및 이를 포함하는 토크 센서
DE102011101482B4 (de) * 2011-05-13 2017-05-11 Thyssenkrupp Presta Aktiengesellschaft Sensoranordnung für eine drehbare Welle
DE102015122176A1 (de) * 2015-12-18 2017-06-22 Valeo Schalter Und Sensoren Gmbh Magneteinheit für eine Sensoreinrichtung eines Kraftfahrzeugs, Sensoreinrichtung mit einer Magneteinheit und Kraftfahrzeug mit einer Sensoreinrichtung
DE102015122182A1 (de) * 2015-12-18 2017-06-22 Valeo Schalter Und Sensoren Gmbh Magneteinheit für eine Sensoreinrichtung eines Kraftfahrzeugs, Sensoreinrichtung mit einer Magneteinheit und Kraftfahrzeug mit einer Sensoreinrichtung
EP3695426A1 (fr) 2017-10-10 2020-08-19 Bomatec Management AG Arrangement d'aimant et son procédé de fabrication
DE102018217455A1 (de) * 2018-10-11 2020-04-16 Conti Temic Microelectronic Gmbh Montageverfahren für eine Sensoranordnung und Sensoranordnung
DE102021208420A1 (de) 2021-08-03 2023-02-09 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Verstellantrieb für ein Verstellelement eines Kraftfahrzeugs

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DE19836451A1 (de) 1998-08-12 2000-02-24 Baermann Max Gmbh Hochgefülltes Kunststoffteil
DE20002277U1 (de) 2000-02-09 2000-04-06 Baermann Max Gmbh Hochgefülltes Kunststoffteil
WO2002071019A1 (fr) 2001-03-02 2002-09-12 Moving Magnet Technologies (S.A.) Capteur de position, notamment destine a la detection de la torsion d'une colonne de direction
DE10256322A1 (de) 2002-11-28 2004-06-09 Valeo Schalter Und Sensoren Gmbh Vorrichtung zum Bestimmen eines auf eine Welle ausgeübten Drehmoments
JP2005265580A (ja) * 2004-03-18 2005-09-29 Koyo Seiko Co Ltd トルク検出装置
JP2009097924A (ja) * 2007-10-15 2009-05-07 Denso Corp 回転角検出装置

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DE59200663D1 (de) * 1992-12-08 1994-11-24 Siemens Ag Elektromotorischer Antrieb.
JP3729960B2 (ja) * 1997-01-28 2005-12-21 株式会社リコー 回転体構造およびこれを用いるポリゴンスキャナ
DE10121749B4 (de) * 2001-05-04 2004-01-29 Windhorst Beteiligungsgesellschaft Mbh Ringmagnet, insbesondere für Gebersysteme zur berührungslosen Abtastung durch Sensoren
JP4830862B2 (ja) * 2007-01-12 2011-12-07 オムロン株式会社 操作入力装置およびこれを用いた電子機器
DE102007050258A1 (de) * 2007-10-20 2009-04-23 Valeo Schalter Und Sensoren Gmbh Ringmagnet für eine Drehmoment- oder Drehwinkelsensoranordnung

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Publication number Priority date Publication date Assignee Title
DE19836451A1 (de) 1998-08-12 2000-02-24 Baermann Max Gmbh Hochgefülltes Kunststoffteil
DE20002277U1 (de) 2000-02-09 2000-04-06 Baermann Max Gmbh Hochgefülltes Kunststoffteil
WO2002071019A1 (fr) 2001-03-02 2002-09-12 Moving Magnet Technologies (S.A.) Capteur de position, notamment destine a la detection de la torsion d'une colonne de direction
DE10256322A1 (de) 2002-11-28 2004-06-09 Valeo Schalter Und Sensoren Gmbh Vorrichtung zum Bestimmen eines auf eine Welle ausgeübten Drehmoments
JP2005265580A (ja) * 2004-03-18 2005-09-29 Koyo Seiko Co Ltd トルク検出装置
JP2009097924A (ja) * 2007-10-15 2009-05-07 Denso Corp 回転角検出装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150138387A (ko) * 2013-04-05 2015-12-09 발레오 샬터 운트 센소렌 게엠베아 차량의 센서 장치용 자석 유닛 제조 방법, 자석 유닛, 센서 장치 및 차량
KR102159851B1 (ko) 2013-04-05 2020-09-24 발레오 샬터 운트 센소렌 게엠베아 차량의 센서 장치용 자석 유닛 제조 방법, 자석 유닛, 센서 장치 및 차량
JP2019507495A (ja) * 2016-01-15 2019-03-14 ボマテック マネージメント アクチェンゲゼルシャフト マグネットアセンブリ及びこの種のマグネットアセンブリ用の磁性プラスチック部品
US10641670B2 (en) 2016-06-13 2020-05-05 Valeo Schalter Und Sensoren Gmbh Magnet unit for a sensor device of a motor vehicle, sensor device having a magnet unit and motor vehicle having a sensor device
KR20200096707A (ko) * 2016-06-13 2020-08-12 발레오 샬터 운트 센소렌 게엠베아 자동차의 센서 장치용 자석 유닛, 자석 유닛을 갖는 센서 장치 및 센서 장치를 갖는 자동차
KR102367333B1 (ko) * 2016-06-13 2022-02-24 발레오 샬터 운트 센소렌 게엠베아 자동차의 센서 장치용 자석 유닛, 자석 유닛을 갖는 센서 장치 및 센서 장치를 갖는 자동차
CN112384762A (zh) * 2018-05-08 2021-02-19 法雷奥开关和传感器有限责任公司 用于机动车辆的传感器装置的磁体组件、具有磁体组件的传感器装置以及具有传感器装置的机动车辆

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Publication number Publication date
DE102009039082A1 (de) 2011-03-03

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