[go: up one dir, main page]

EP1864090A1 - Capteur de champ magnetique - Google Patents

Capteur de champ magnetique

Info

Publication number
EP1864090A1
EP1864090A1 EP06707852A EP06707852A EP1864090A1 EP 1864090 A1 EP1864090 A1 EP 1864090A1 EP 06707852 A EP06707852 A EP 06707852A EP 06707852 A EP06707852 A EP 06707852A EP 1864090 A1 EP1864090 A1 EP 1864090A1
Authority
EP
European Patent Office
Prior art keywords
holder
magnetic field
sensor element
field sensor
recess
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Withdrawn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
EP06707852A
Other languages
German (de)
English (en)
Inventor
Matthias Moerbe
Matthias Waibler
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 EP1864090A1 publication Critical patent/EP1864090A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors

Definitions

  • the invention relates to a magnetic field sensor, in particular a speed and / or direction of rotation sensor for a vehicle or for the drive train of a vehicle according to the preamble of claim 1, as has become known for example from DE 101 29 222 A.
  • This document discloses a magnetic field sensor with a support element made of metal, on which a holder for a sensor element is fixed in a predetermined position. About the type of positioning of the sensor element in the holder makes the document no further details. For this purpose, it is merely stated that the holder is hermetically enclosed by an encapsulation together with the sensor element inserted therein.
  • a wheel bearing sensor for measuring rotational or angular movements is known, the sensor housing encapsulated together with the sensor head as a unit.
  • a sensor element is applied to a carrier serving as a permanent magnet and embedded together with this in the potting compound, with the risk that the sensor element is damaged during the wrapping with plastic by the stresses or deformations occurring.
  • the invention has for its object to provide a magnetic field sensor, which is characterized on the one hand by very small tolerances in the positioning of the sensor element and on the other hand the risk of damage to the Sensor element avoids the occurring in the plastic cladding thermal and mechanical loads.
  • the characterizing features of claim 1 wherein the positioning of the sensor element in a pocket-like recess of the holder on the one hand exact positioning is ensured and on the other hand mechanical stresses during encapsulation of the holder with the sensor element by its support in the recess are largely excluded ,
  • the sensor element is formed as a flat IC chip component and placed in a correspondingly shaped, extending substantially perpendicular to the axial direction of the sensor recess, because in this case a particularly good support and exact positioning are made possible by the flat large areas of the sensor element
  • the holder has a preferably slot-like opening for introducing the sensor element into the recess, so that the sensor element is inserted into the recess with little play and can be positioned by the support of its connection lines at the edge of the slot-shaped opening without further aids.
  • the arrangement of the recess for the sensor element immediately behind the reading surface of the finished magnetic field sensor, the air gap between the sensor element and an associated encoder is minimized.
  • the holder itself is preferably injection molded from thermoplastic material and expediently has at least in the region of the sensor element fuser ribs, whereby a good connection between the holder and the outer potting compound and an exact positioning and locking are ensured in the potting compound.
  • the holder in the axial direction next to the recess for the sensor element a molded clamp for the Receiving a magnet and optionally an associated diffuser for the generation of the sensor field has, since in this case the sensor element can be locked directly in the recess by the magnet and optionally the lens in the axial direction of the holder without additional further holding elements.
  • Figure 1 is a view of the magnetic field sensor according to the invention, partly in section, and
  • FIG. 2 shows a view of the underside of the magnetic field sensor shown in Figure 1.
  • FIG. 1 denoted by 10 is a magnetic field sensor, which as a whole is encapsulated with a sheathing 12 made of thermoplastic material. Inside, there is a holder 14, likewise injection-molded from thermoplastic material, which has melting ribs 16 for secure integration of the holder 14 into the casing 12.
  • the thermoplastic used for both the casing 12 and the holder 14 is the same polyamide material.
  • connection-side end of the holder 14 two connecting cables 18 and 20 are injected, the stripped ends are connected by means of a respective crimp connection 21 with fittings 22 and 24. These fittings are initially in one piece to facilitate the positioning of the electrical connection parts and then by the separation of the connecting parts 26, 28 against each other electrically isolated.
  • the free ends of the connecting pieces 22 and 24 are connected in the region of a window-like opening 33 in the holder 14 by welding or soldering with connecting leads 30 and 32 of an IC sensor element 34. To suppress voltage peaks, the connection lines 30 and 32 are bridged by a capacitor 36.
  • the magnetic field sensor whose so-called read side, which is arranged adjacent to a donor, not shown in the drawing, for example, an alternately provided with teeth and tooth gaps ferromagnetic encoder wheel.
  • the magnetic field necessary for detecting the position of such a donor wheel is generated by a permanent magnet 38 and an associated lens 40.
  • the permanent magnet 38 and the lens 40 are laterally positioned and locked by two elastically deflectable arms 42 and 44 of the holder 14.
  • the permanent magnet 38 and the lens 40 are arranged between a projection 46 of the holder 14 and the reading-side end wall 48 that the sensor element 34 with a small clearance through a slot-shaped opening 49 in the space between the lens 40 and the Front wall 48 fits.
  • the sensor element 34 is in turn positioned and supported at the upper end by the bent ends of its connecting lines 30 and 32 and at its lower edge and on both sides by an axially projecting edge 52 on the end wall 48.
  • the holder 14 is thus designed in the region of the sensor element 34 such that it rests in the pocket-like recess 50 with the reading side on the inside of the end wall 48, the outside of the plastic envelope is applied to the not visible in the drawing tool wall, whereby the IC Sensor element 34 is supported on its entire large area. This results in a non-deformable position of the sensor element 34 in the holder 14, so that when spraying the outer sheath 12 of the sensor 10, even at high pressures and high friction during filling of the injection tool no distortion or deformation of the IC sensor element 34 occur and this is thus safely protected next to accurate positioning against damage.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

L'invention concerne un capteur de champ magnétique, en particulier un capteur de vitesse de rotation et/ou de sens de rotation destiné à une roue de véhicule ou à l'ensemble transmission d'un véhicule, ce capteur comprenant un support pour un élément de détection et éventuellement d'autres composants de détection. Ledit support se présente sous la forme d'une pièce en matière plastique moulée par injection et il comporte un évidement de type poche au niveau de sa surface frontale côté lecture. L'élément de détection est appuyé dans cet évidement lors de l'enrobage final par extrusion de plastique au moins dans le sens de la pression d'injection, ce qui permet de le protéger de manière sûre contre une détérioration mécanique.
EP06707852A 2005-03-22 2006-01-26 Capteur de champ magnetique Withdrawn EP1864090A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510012709 DE102005012709A1 (de) 2005-03-22 2005-03-22 Magnetfeldsensor
PCT/EP2006/050464 WO2006100143A1 (fr) 2005-03-22 2006-01-26 Capteur de champ magnetique

Publications (1)

Publication Number Publication Date
EP1864090A1 true EP1864090A1 (fr) 2007-12-12

Family

ID=36087735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06707852A Withdrawn EP1864090A1 (fr) 2005-03-22 2006-01-26 Capteur de champ magnetique

Country Status (6)

Country Link
EP (1) EP1864090A1 (fr)
JP (1) JP2008533494A (fr)
CN (1) CN100578157C (fr)
DE (1) DE102005012709A1 (fr)
MX (1) MX2007011719A (fr)
WO (1) WO2006100143A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009074582A3 (fr) * 2007-12-13 2009-09-11 Continental Teves Ag & Co. Ohg Élément de détection de champ magnétique

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006029980A1 (de) 2006-06-29 2008-01-03 Robert Bosch Gmbh Sensoranordnung
DE102006050177A1 (de) * 2006-10-25 2008-04-30 Robert Bosch Gmbh Magnetfeldsensor
DE102008005315A1 (de) * 2008-01-21 2009-07-23 Robert Bosch Gmbh Verfahren und Vorrichtung zur Herstellung eines Magnetfeldsensors
DE102008032330A1 (de) 2008-07-09 2010-01-14 Akro Plastic Gmbh Verfahren zur Herstellung von montagefertigen, kunststoffumspritzten Elektronikbauteilen bzw. Elektronikbaugruppen
DE102009028963A1 (de) 2009-08-28 2011-03-03 Robert Bosch Gmbh Anschlussanordnung für eine Sensoranordnung und Sensoranordnung
US9528815B2 (en) * 2013-02-08 2016-12-27 Hamilton Sundstrand Corporation Transformer based sensor arrangement
DE102014202192A1 (de) * 2014-02-06 2015-08-06 Robert Bosch Gmbh Sensoreinheit für ein Fahrzeug und Verfahren zur Herstellung einer Sensoreinheit für ein Fahrzeug
DE102014202182A1 (de) 2014-02-06 2015-08-06 Robert Bosch Gmbh Verfahren zur Herstellung einer Sensoreinheit für ein Fahrzeug und Sensoreinheit für ein Fahrzeug
DE102014202208A1 (de) 2014-02-06 2015-08-06 Robert Bosch Gmbh Sensoreinheit für ein Fahrzeug
US9664705B2 (en) * 2014-02-19 2017-05-30 Sensata Technologies, Inc. Speed sensor
DE102014013312A1 (de) * 2014-09-08 2016-03-10 Wabco Gmbh Träger für ein Sensorelement, Bauteilgruppe und Drehzahlsensor
US10449614B2 (en) * 2014-12-18 2019-10-22 Illinois Tool Works Inc. Systems and methods for solid state sensor measurements of welding cables
FR3055737B1 (fr) * 2016-09-08 2018-11-30 Continental Automotive France Procede de fabrication sur une plaque de maintien metallique d'au moins un module electronique incluant au moins un test electrique
DE102017216533A1 (de) 2017-09-19 2019-03-21 Robert Bosch Gmbh Halter für eine Sensoreinheit
DE102017222681A1 (de) * 2017-12-13 2019-06-13 Robert Bosch Gmbh Sensorkopf und Verfahren zur Herstellung eines Sensorkopfes
FR3097969B1 (fr) * 2019-06-25 2021-06-11 Continental Automotive Gmbh Capteur et procédé de fabrication
DE102021108660A1 (de) 2021-04-07 2022-10-13 Robert Bosch Gesellschaft mit beschränkter Haftung Sensoreinheit und Verfahren zur Herstellung einer Sensoreinheit
DE102021108659A1 (de) 2021-04-07 2022-11-03 Robert Bosch Gesellschaft mit beschränkter Haftung Sensoreinheit und Verfahren zur Herstellung einer Sensoreinheit
DE102021108663A1 (de) 2021-04-07 2022-10-13 Robert Bosch Gesellschaft mit beschränkter Haftung Sensoreinheit und Verfahren zur Herstellung einer Sensoreinheit
CN115183809A (zh) 2021-04-07 2022-10-14 罗伯特·博世有限公司 传感器单元和用于制造传感器单元的方法
DE102021108661A1 (de) 2021-04-07 2022-10-13 Robert Bosch Gesellschaft mit beschränkter Haftung Redundante Sensoreinheit und Verfahren zur Herstellung einer Sensoreinheit
DE102021120695A1 (de) 2021-08-09 2023-02-09 Rheintacho Messtechnik Gmbh Sensoranordnung, Sensorvorrichtung und korrespondierende Verwendung

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5248939A (en) * 1990-02-22 1993-09-28 The Torrington Company Apparatus for sensing the direction and speed of a steering wheel shaft using hall effect sensors in a detachable sensor mounting
JPH0489506A (ja) * 1990-08-02 1992-03-23 Mitsubishi Electric Corp 角度検出装置
DE4201328A1 (de) * 1992-01-20 1993-07-22 Teves Metallwaren Alfred Sensor
JP3448999B2 (ja) * 1994-06-30 2003-09-22 住友電気工業株式会社 回転センサおよびその製造方法
JP3329977B2 (ja) * 1995-02-13 2002-09-30 株式会社日立製作所 回転位置検出装置
US5581179A (en) * 1995-05-31 1996-12-03 Allegro Microsystems, Inc. Hall-effect ferrous-article-proximity sensor assembly
DE19532328A1 (de) * 1995-09-01 1997-03-06 Teves Gmbh Alfred Radlagersensor zum Messen von Dreh- oder Winkelbewegungen
DE19612765A1 (de) * 1996-03-29 1997-11-13 Teves Gmbh Alfred Kunststoffsensor und Verfahren zu dessen Herstellung
JP3991856B2 (ja) * 1996-10-03 2007-10-17 住友電気工業株式会社 電気絶縁ケーブル及びそのケーブルとハウジングの接続部
JP3433051B2 (ja) * 1997-06-26 2003-08-04 株式会社日立ユニシアオートモティブ 回転検出装置
JP2000097955A (ja) * 1998-09-22 2000-04-07 Honda Lock Mfg Co Ltd センサ装置
DE19857880B4 (de) * 1997-12-18 2008-07-31 Honda Lock Mfg. Co., Ltd. Sensor
JPH11295331A (ja) * 1998-04-10 1999-10-29 Matsushita Electric Ind Co Ltd 回転数センサあるいは回転角度センサ
JP2001289610A (ja) * 1999-11-01 2001-10-19 Denso Corp 回転角度検出装置
DE10009173A1 (de) * 2000-02-26 2001-09-06 Bosch Gmbh Robert Messvorrichtung zur berührungslosen Erfassung eines ferromagnetischen Gegenstandes
JP3866531B2 (ja) * 2001-06-01 2007-01-10 株式会社ホンダロック センサ装置
DE10129222B4 (de) * 2001-06-19 2005-10-27 Siemens Ag Magnetfeldsensor und Verfahren zur Herstellung eines solchen
JP3714204B2 (ja) * 2001-06-29 2005-11-09 株式会社デンソー 回転検出装置及びその製造方法
JP3711951B2 (ja) * 2002-02-28 2005-11-02 株式会社デンソー センサ構造及びセンサの製造方法
TWI304321B (en) * 2002-12-27 2008-12-11 Toray Industries Layered products, electromagnetic wave shielding molded articles and method for production thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006100143A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009074582A3 (fr) * 2007-12-13 2009-09-11 Continental Teves Ag & Co. Ohg Élément de détection de champ magnétique
CN101896822B (zh) * 2007-12-13 2013-01-23 大陆-特韦斯贸易合伙股份公司及两合公司 磁场传感元件

Also Published As

Publication number Publication date
CN100578157C (zh) 2010-01-06
WO2006100143A1 (fr) 2006-09-28
JP2008533494A (ja) 2008-08-21
CN101147045A (zh) 2008-03-19
DE102005012709A1 (de) 2006-09-28
MX2007011719A (es) 2007-11-20

Similar Documents

Publication Publication Date Title
EP1864090A1 (fr) Capteur de champ magnetique
DE10320145B4 (de) Magnetische Detektionsvorrichtung
EP1890162B1 (fr) Dispositif de mesure électrique
EP2366096B1 (fr) Kit pour un moteur électrique avec un capteur angulaire
DE202008009002U1 (de) Magnetfeldsensor
EP3047240B1 (fr) Procédé de fabrication d'une unité d'aimant destiné à un dispositif de détection servant à détecter une grandeur de mesure caractérisant l'état de rotation d'un arbre de direction d'un véhicule automobile, unité d'aimant, dispositif de détection et véhicule automobile
DE102007007840A1 (de) Rotationserfassungsvorrichtung
WO2012113592A1 (fr) Module de capteur pour un véhicule
EP3378143B1 (fr) Couvercle de boîtier pour machine électrique
DE102011081016A1 (de) Sensormodul und Verfahren zur Herstellung eines Sensormoduls
DE102009028963A1 (de) Anschlussanordnung für eine Sensoranordnung und Sensoranordnung
DE102007060604A1 (de) Magnetfeld-Sensorelement
DE102017215091A1 (de) Anordnung und Verfahren zur Kontaktierung eines Temperatursensors an einem Wickelkopf einer Elektromaschine
DE102011006594A1 (de) Sensormodul und Verfahren zur Herstellung eines Sensormoduls
DE102010020119B4 (de) Magnetfeldsensor
EP3685124B1 (fr) Support pour une unité de détection
DE10256709B4 (de) Haltestruktur für eine elektronische Komponente und Verfahren zum Herstellen einer Haltestruktur für eine elektronische Komponente
DE102019214406A1 (de) Lenkvorrichtung und Verfahren zur Herstellung einer Lenkvorrichtung
WO2011064245A1 (fr) Capteur de couple de rotation
DE102011006392A1 (de) Anschlusselement und Verfahren zur Herstellung eines Anschlusselements
EP0473242B1 (fr) Boîtier de protection comprenant une pièce détachée électronique
DE202008001463U1 (de) Einrichtung zur Verdrehsicherung eines Stators einer Exzenterschneckenpumpe
DE102023211176A1 (de) Hochvoltschnittstelle und Verfahren zum Herstellen eines Kontaktelements
DE102022202559A1 (de) Sensoreinheit und Verfahren zur Herstellung einer Sensoreinheit
DE102004054059B4 (de) Sensoranordnung und Verfahren zum Herstellen einer Sensoranordnung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20071022

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20080116

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

RBV Designated contracting states (corrected)

Designated state(s): DE FR IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160418

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160830