WO2006100143A1 - Magnetic field sensor - Google Patents
Magnetic field sensor Download PDFInfo
- Publication number
- WO2006100143A1 WO2006100143A1 PCT/EP2006/050464 EP2006050464W WO2006100143A1 WO 2006100143 A1 WO2006100143 A1 WO 2006100143A1 EP 2006050464 W EP2006050464 W EP 2006050464W WO 2006100143 A1 WO2006100143 A1 WO 2006100143A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- holder
- magnetic field
- sensor element
- field sensor
- recess
- Prior art date
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)
- Measuring Magnetic Variables (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2007011719A MX2007011719A (en) | 2005-03-22 | 2006-01-26 | Magnetic field sensor. |
JP2008502357A JP2008533494A (en) | 2005-03-22 | 2006-01-26 | Magnetic field sensor |
EP06707852A EP1864090A1 (en) | 2005-03-22 | 2006-01-26 | Magnetic field sensor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005012709.6 | 2005-03-22 | ||
DE200510012709 DE102005012709A1 (en) | 2005-03-22 | 2005-03-22 | magnetic field sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006100143A1 true WO2006100143A1 (en) | 2006-09-28 |
Family
ID=36087735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/050464 WO2006100143A1 (en) | 2005-03-22 | 2006-01-26 | Magnetic field sensor |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1864090A1 (en) |
JP (1) | JP2008533494A (en) |
CN (1) | CN100578157C (en) |
DE (1) | DE102005012709A1 (en) |
MX (1) | MX2007011719A (en) |
WO (1) | WO2006100143A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008032330A1 (en) | 2008-07-09 | 2010-01-14 | Akro Plastic Gmbh | Manufacturing plastic overmolded electronic component, useful for e.g. automobile industry, comprises introducing electronic component into a liquid reactive resin and overmolding electronic component with a thermoplastic component |
US8575924B2 (en) | 2007-12-13 | 2013-11-05 | Continental Teves Ag & Co. Ohg | Magnetic field sensor element |
US10330695B2 (en) | 2014-02-06 | 2019-06-25 | Robert Bosch Gmbh | Sensor unit for a vehicle, and method for producing a sensor unit for a vehicle |
DE102021120695A1 (en) | 2021-08-09 | 2023-02-09 | Rheintacho Messtechnik Gmbh | Sensor arrangement, sensor device and corresponding use |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006029980A1 (en) | 2006-06-29 | 2008-01-03 | Robert Bosch Gmbh | sensor arrangement |
DE102006050177A1 (en) * | 2006-10-25 | 2008-04-30 | Robert Bosch Gmbh | Magnetic field sensor e.g. rotational speed sensor, for e.g. vehicle wheel, has carrier designed as plastic-injected part and provided for magnetic field-sensitive sensor unit, which is designed as surface mount device unit |
DE102008005315A1 (en) * | 2008-01-21 | 2009-07-23 | Robert Bosch Gmbh | Method and device for producing a magnetic field sensor |
DE102009028963A1 (en) | 2009-08-28 | 2011-03-03 | Robert Bosch Gmbh | Connection arrangement for a sensor arrangement and sensor arrangement |
US9528815B2 (en) * | 2013-02-08 | 2016-12-27 | Hamilton Sundstrand Corporation | Transformer based sensor arrangement |
DE102014202182A1 (en) | 2014-02-06 | 2015-08-06 | Robert Bosch Gmbh | Method for producing a sensor unit for a vehicle and sensor unit for a vehicle |
DE102014202208A1 (en) * | 2014-02-06 | 2015-08-06 | Robert Bosch Gmbh | Sensor unit for a vehicle |
US9664705B2 (en) * | 2014-02-19 | 2017-05-30 | Sensata Technologies, Inc. | Speed sensor |
DE102014013312A1 (en) * | 2014-09-08 | 2016-03-10 | Wabco Gmbh | Support for a sensor element, component group and speed sensor |
US10449614B2 (en) * | 2014-12-18 | 2019-10-22 | Illinois Tool Works Inc. | Systems and methods for solid state sensor measurements of welding cables |
FR3055737B1 (en) | 2016-09-08 | 2018-11-30 | Continental Automotive France | METHOD FOR MANUFACTURING ON A METAL SUPPORT PLATE OF AT LEAST ONE ELECTRONIC MODULE INCLUDING AT LEAST ONE ELECTRICAL TEST |
DE102017216533A1 (en) | 2017-09-19 | 2019-03-21 | Robert Bosch Gmbh | Holder for a sensor unit |
DE102017222681A1 (en) * | 2017-12-13 | 2019-06-13 | Robert Bosch Gmbh | Sensor head and method for manufacturing a sensor head |
FR3097969B1 (en) * | 2019-06-25 | 2021-06-11 | Continental Automotive Gmbh | Sensor and manufacturing process |
DE102021108661A1 (en) | 2021-04-07 | 2022-10-13 | Robert Bosch Gesellschaft mit beschränkter Haftung | Redundant sensor unit and method of manufacturing a sensor unit |
DE102021108659A1 (en) | 2021-04-07 | 2022-11-03 | Robert Bosch Gesellschaft mit beschränkter Haftung | Sensor unit and method of manufacturing a sensor unit |
DE102021108663A1 (en) | 2021-04-07 | 2022-10-13 | Robert Bosch Gesellschaft mit beschränkter Haftung | Sensor unit and method of manufacturing a sensor unit |
CN115183809A (en) | 2021-04-07 | 2022-10-14 | 罗伯特·博世有限公司 | Sensor unit and method for producing a sensor unit |
DE102021108660A1 (en) | 2021-04-07 | 2022-10-13 | Robert Bosch Gesellschaft mit beschränkter Haftung | Sensor unit and method of manufacturing a sensor unit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5581179A (en) * | 1995-05-31 | 1996-12-03 | Allegro Microsystems, Inc. | Hall-effect ferrous-article-proximity sensor assembly |
US6157186A (en) * | 1997-06-26 | 2000-12-05 | Unisia Jecs Corporation | Rotation detecting apparatus having a casing made of resin material and having a clearance groove for absorbing thermal radiation |
US6155114A (en) * | 1997-12-18 | 2000-12-05 | Honda Lock Mfg. Co., Ltd. | Sensor device |
EP1262779A2 (en) * | 2001-06-01 | 2002-12-04 | HONDA LOCK MFG. Co., LTD. | Sensor device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0489506A (en) * | 1990-08-02 | 1992-03-23 | Mitsubishi Electric Corp | Angle detector |
DE4201328A1 (en) * | 1992-01-20 | 1993-07-22 | Teves Metallwaren Alfred | SENSOR |
JP3448999B2 (en) * | 1994-06-30 | 2003-09-22 | 住友電気工業株式会社 | Rotation sensor and method of manufacturing the same |
JP3329977B2 (en) * | 1995-02-13 | 2002-09-30 | 株式会社日立製作所 | Rotational position detector |
DE19612765A1 (en) * | 1996-03-29 | 1997-11-13 | Teves Gmbh Alfred | Plastic sensor and method for its production |
JP3991856B2 (en) * | 1996-10-03 | 2007-10-17 | 住友電気工業株式会社 | Electrically insulated cable and connection between the cable and housing |
JP2000097955A (en) * | 1998-09-22 | 2000-04-07 | Honda Lock Mfg Co Ltd | Sensor device |
JPH11295331A (en) * | 1998-04-10 | 1999-10-29 | Matsushita Electric Ind Co Ltd | Rotation speed sensor or rotation angle sensor |
JP2001289610A (en) * | 1999-11-01 | 2001-10-19 | Denso Corp | Angle-of-rotation detector |
DE10009173A1 (en) * | 2000-02-26 | 2001-09-06 | Bosch Gmbh Robert | Measuring device for the contactless detection of a ferromagnetic object |
JP3714204B2 (en) * | 2001-06-29 | 2005-11-09 | 株式会社デンソー | Rotation detecting device and manufacturing method thereof |
JP3711951B2 (en) * | 2002-02-28 | 2005-11-02 | 株式会社デンソー | Sensor structure and sensor manufacturing method |
TWI304321B (en) * | 2002-12-27 | 2008-12-11 | Toray Industries | Layered products, electromagnetic wave shielding molded articles and method for production thereof |
-
2005
- 2005-03-22 DE DE200510012709 patent/DE102005012709A1/en not_active Withdrawn
-
2006
- 2006-01-26 WO PCT/EP2006/050464 patent/WO2006100143A1/en not_active Application Discontinuation
- 2006-01-26 EP EP06707852A patent/EP1864090A1/en not_active Withdrawn
- 2006-01-26 CN CN200680009211A patent/CN100578157C/en not_active Expired - Fee Related
- 2006-01-26 JP JP2008502357A patent/JP2008533494A/en active Pending
- 2006-01-26 MX MX2007011719A patent/MX2007011719A/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5581179A (en) * | 1995-05-31 | 1996-12-03 | Allegro Microsystems, Inc. | Hall-effect ferrous-article-proximity sensor assembly |
US6157186A (en) * | 1997-06-26 | 2000-12-05 | Unisia Jecs Corporation | Rotation detecting apparatus having a casing made of resin material and having a clearance groove for absorbing thermal radiation |
US6155114A (en) * | 1997-12-18 | 2000-12-05 | Honda Lock Mfg. Co., Ltd. | Sensor device |
EP1262779A2 (en) * | 2001-06-01 | 2002-12-04 | HONDA LOCK MFG. Co., LTD. | Sensor device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8575924B2 (en) | 2007-12-13 | 2013-11-05 | Continental Teves Ag & Co. Ohg | Magnetic field sensor element |
DE102008032330A1 (en) | 2008-07-09 | 2010-01-14 | Akro Plastic Gmbh | Manufacturing plastic overmolded electronic component, useful for e.g. automobile industry, comprises introducing electronic component into a liquid reactive resin and overmolding electronic component with a thermoplastic component |
US10330695B2 (en) | 2014-02-06 | 2019-06-25 | Robert Bosch Gmbh | Sensor unit for a vehicle, and method for producing a sensor unit for a vehicle |
DE102021120695A1 (en) | 2021-08-09 | 2023-02-09 | Rheintacho Messtechnik Gmbh | Sensor arrangement, sensor device and corresponding use |
Also Published As
Publication number | Publication date |
---|---|
CN100578157C (en) | 2010-01-06 |
MX2007011719A (en) | 2007-11-20 |
CN101147045A (en) | 2008-03-19 |
EP1864090A1 (en) | 2007-12-12 |
DE102005012709A1 (en) | 2006-09-28 |
JP2008533494A (en) | 2008-08-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006100143A1 (en) | Magnetic field sensor | |
DE10320145B4 (en) | Magnetic detection device | |
EP1890162B1 (en) | Electric measuring device | |
EP2235551B1 (en) | Magnetic field sensor | |
DE102011004447A1 (en) | Sensor unit for a vehicle | |
EP2470868B1 (en) | Connection assembly for a sensor assembly and sensor assembly | |
DE102006032780A1 (en) | Electric motor drive for vehicle, has speed sensor that is arranged at side of rotor, and magnetoresistive sensor that is arranged at side of stator, where speed sensor is connected with rotor shaft as single-piece | |
WO2010072359A1 (en) | Kit for an electric motor having a rotary encoder | |
EP3378143B1 (en) | Housing cover for an electric machine | |
DE102011081016A1 (en) | Sensor module and method for producing a sensor module | |
EP1040321B1 (en) | Transducer and method for producing the same | |
DE102017217355A1 (en) | Stator of an electric machine | |
DE102007060604A1 (en) | Magnetic field sensor element | |
DE102017215091A1 (en) | Arrangement and method for contacting a temperature sensor on a winding head of an electric machine | |
DE102011006594A1 (en) | Sensor module and method for producing a sensor module | |
DE19612964A1 (en) | Pressure sensor and method for manufacturing a pressure sensor | |
EP2797176A1 (en) | Sensor unit | |
DE102017212039B4 (en) | Rotation angle measuring device | |
DE10256709B4 (en) | Support structure for an electronic component and method for producing a support structure for an electronic component | |
EP2504677B1 (en) | Torque sensor | |
DE102011006392A1 (en) | Connector for electrical contact of electrical component e.g. sensor element for motor car security system, has reinforcing stiffening element which is provided for reinforcing electrically conductive conduit element | |
EP3685124B1 (en) | Holder for a sensor unit | |
DE202008001463U1 (en) | Device for preventing rotation of a stator of an eccentric screw pump | |
DE102019214406A1 (en) | Steering device and method for manufacturing a steering device | |
DE102019210843A1 (en) | Electric machine, in particular for adjusting moving parts in a motor vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
REEP | Request for entry into the european phase |
Ref document number: 2006707852 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006707852 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008502357 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/a/2007/011719 Country of ref document: MX Ref document number: 200680009211.5 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: RU |
|
WWP | Wipo information: published in national office |
Ref document number: 2006707852 Country of ref document: EP |