WO1997046850A1 - Magnetring - Google Patents
Magnetring Download PDFInfo
- Publication number
- WO1997046850A1 WO1997046850A1 PCT/EP1997/002262 EP9702262W WO9746850A1 WO 1997046850 A1 WO1997046850 A1 WO 1997046850A1 EP 9702262 W EP9702262 W EP 9702262W WO 9746850 A1 WO9746850 A1 WO 9746850A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic
- inner edge
- disk
- magnetic ring
- shaft
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000000696 magnetic material Substances 0.000 claims description 8
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 229910000952 Be alloy Inorganic materials 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009172 bursting Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/20—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts for bolts or shafts without holes, grooves, or notches for locking members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
- F16D1/0852—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft
- F16D1/0858—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft due to the elasticity of the hub (including shrink fits)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/04—Special adaptations of driving means
Definitions
- the invention relates to a magnetic ring which is to serve as a signal generator for a magnetic field sensitive sensor.
- Such magnetic rings are e.g. placed on drive shafts of electric motors to detect their speed or the angular position.
- the magnetic ring must be held on the shaft so that it cannot rotate. However, it cannot be pressed directly onto the shaft, since the magnetic material is brittle and would burst when pressed on. Additional fasteners are therefore necessary.
- a fastening element which consists of a T-shaped plastic sleeve which carries the magnetic ring together with a yoke sleeve on its cylindrical circumferential surface running in the axial direction and on its end face extending in the radial direction.
- the plastic sleeve, the yoke sleeve and the magnetic ring are encapsulated with plastic together with the shaft.
- the magnetic ring onto an annular disk, the outer edge of the annular disk being encompassed by the magnet and its inside being exposed at least in sections, the exposed inner edge lying at least in sections on a circle whose diameter is only slightly smaller than the diameter of the shaft on which the magnetic ring is to be attached.
- the inwardly projecting sections of the annular disk form resilient holding elements which can be pressed onto the shaft, so that if the holding forces are chosen to be correspondingly large, the magnetic ring is held on the shaft in a manner which prevents it from rotating and is secured against displacement.
- the press-in forces are introduced into the washer and not into the magnetic ring.
- the inner edge of the disk preferably lies on a circle except for two receptacles, the sections of the inner edge which lie in the recesses being encompassed by the magnet.
- the recesses form segments whose centers coincide with the center point of the circle formed by the rest of the inner edge.
- the shaft can also be provided with a few longitudinal notches on its circumference, the notches being thrown into the material, the removed material being thrown up as a longitudinal web along the groove. If the annular disk is pressed onto these webs, there is a firm hold, and it is also possible to dispense with providing segment recesses in the annular disk.
- the disc preferably consists of a non-magnetic metal, for example hard brass or a beryllium alloy.
- a magnetic ring of this type is produced by overmoulding the prefabricated ring disk with magnetizable material, and then the sprayed-on magnetic material is magnetized in the desired manner.
- 1 is a side view of a magnetic ring
- Fig. 2 shows a section along the line II-II of Fig. 1 and
- Fig. 3 is a plan view of the washer.
- Fig. 4 shows a shaft with longitudinal notches
- Fig. 5 shows a section along the line V-V
- FIG. 6 shows another embodiment in section as in FIG. 1.
- the magnetic ring is designated as a whole by 1. It consists of a magnetic disk 2 made of magnetic or magnetizable material, the outer edge 3 and the inner edge 4 of which each form cylindrical jacket surfaces. The side surfaces 5 and 6 are flat.
- the ring disk 10 consists of a non-magnetic metal, for example hard brass, its thickness is significantly less than the thickness of the magnetic ring 2. Its outer edge 11 lies on a circle which is smaller in diameter than the diameter of the outer edge of the magnetic ring 2.
- the inner edge 12 lies on two opposite angular sections 13, 14 on a circle with an inner diameter that is smaller than the inner diameter of the magnetic ring 2.
- the inner edge 12 has two outwardly drawn recesses 15, 16, which lie opposite one another and are segment-shaped, the center of the segments corresponding to the center of the ring disk 10.
- the inner edge 17, 18 of the recesses 15, 16 lies on a circle whose diameter is larger than the inner diameter of the magnet ring 2.
- the holding disk 10 according to FIG. 3 is extrusion-coated with the magnetizable material, the corresponding magnetic ring being concentric with the holding disk 10.
- a shape is formed according to FIG. 1 or 2, two metallic ones on the inner edge of the magnetic disk 2 Project tabs 20, 21, which act as clamping elements.
- FIG. 4 shows a shaft 30 onto which the magnetic ring can be pushed.
- the shaft 30 is provided with longitudinal slots 31, to which parallel longitudinal webs (32) run.
- FIG. 5 shows a cross section through the shaft 30. It can be seen that the webs protrude with sharp edges from the surface of the shaft.
- This method is also used, among other things, to attach the laminated core of the rotor to the shaft.
- the magnetic ring is pushed onto the shaft prepared in this way, in which case the ring disk need not have a recess, but instead has a continuous inner edge which lies on a circle.
- Fig. 6 relates to a particularly easy to install embodiment with a continuous inner edge.
- Reference numerals corresponding to the other figures are additionally marked with '.
- a cylindrical ring disk 10 ' is encapsulated on a disk side 40 up to the cylindrical inner edge 13' with magnetic material.
- the inner edge 13 ' is completely exposed on the other pane side 41.
- the material on the pane side 41 is set back in a quasi step-like manner with respect to the inner edge 13 ', while on the other pane side 40 it extends directly to the inner edge.
- the cylindrical inner circumferential surface 42 of the magnetic disk 2 'forms a support surface when the magnetic ring is pushed onto the drive shaft of the electric motor.
- the magnetic ring 1 ' is pushed onto a shaft end in the direction of the arrow A.
- the properties of the ring disk 10 'and the magnetic disk complement one another because the ring disk 10' lies with the inner edge 13 'directly on the drive shaft and thus prevents damage to the magnetic material by deformation.
- the magnetic material with the inner surface 42 ensures a reliable casual guidance of the magnetic ring when sliding open. Because the magnetic ring 1 'is rotationally symmetrical to the axis 43, it can be easily manufactured. A position indexing of the magnetic ring 1 'in the circumferential direction with respect to the axis 43 or the drive shaft is not necessary for the assembly,
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/194,997 US6198185B1 (en) | 1996-06-05 | 1997-05-02 | Magnetic ring |
DE59708567T DE59708567D1 (de) | 1996-06-05 | 1997-05-02 | Magnetring |
EP97922949A EP0902880B1 (de) | 1996-06-05 | 1997-05-02 | Magnetring |
JP10500124A JP2000512749A (ja) | 1996-06-05 | 1997-05-02 | 磁性リング |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19622547 | 1996-06-05 | ||
DE19625478.7 | 1996-06-26 | ||
DE19622547.7 | 1996-06-26 | ||
DE19625478A DE19625478A1 (de) | 1996-06-05 | 1996-06-26 | Magnetring |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997046850A1 true WO1997046850A1 (de) | 1997-12-11 |
Family
ID=26026333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/002262 WO1997046850A1 (de) | 1996-06-05 | 1997-05-02 | Magnetring |
Country Status (5)
Country | Link |
---|---|
US (1) | US6198185B1 (de) |
EP (1) | EP0902880B1 (de) |
JP (1) | JP2000512749A (de) |
ES (1) | ES2180986T3 (de) |
WO (1) | WO1997046850A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6198185B1 (en) | 1996-06-05 | 2001-03-06 | Itt Manufacturing Enterprises, Inc. | Magnetic ring |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6984916B2 (en) * | 2001-08-17 | 2006-01-10 | Energy Conversion Systems Holdings, Llc | Integrated commutator with sense magnet |
US20030137210A1 (en) * | 2001-08-17 | 2003-07-24 | Southall Otway Archer | Integrated commutator and slip-ring with sense magnet |
US6664780B2 (en) | 2001-11-02 | 2003-12-16 | Skf Usa Inc. | Unitized tone ring assembly |
DE10160847A1 (de) * | 2001-12-12 | 2003-07-17 | Valeo Auto Electric Gmbh | Betätigungsvorrichtung, insbesondere zur Betätigung von Sperrdifferentialen von Fahrzeugen |
DE10331961A1 (de) * | 2003-07-15 | 2005-02-03 | Robert Bosch Gmbh | Ringmagnet |
JP4401868B2 (ja) * | 2004-05-20 | 2010-01-20 | アルプス電気株式会社 | ポジションセンサ |
DE202004012704U1 (de) * | 2004-08-12 | 2005-12-22 | Robert Bosch Gmbh | Ankerwelle für eine elektrische Maschine |
DE102006030562A1 (de) * | 2006-07-03 | 2008-01-17 | Robert Bosch Gmbh | Schwingfeste Magnetbaugruppe für einen Sensor |
DE102008051242B4 (de) * | 2008-10-10 | 2012-02-09 | Asm Automation Sensorik Messtechnik Gmbh | Polrad und Montageverfahren hierfür |
DE102010031399A1 (de) * | 2010-07-15 | 2012-01-19 | Hilti Aktiengesellschaft | Rotor für einen Elektromotor, Elektromotor und Herstellungsverfahren für einen Elektromotor |
KR101764925B1 (ko) | 2010-10-08 | 2017-08-03 | 엘지이노텍 주식회사 | Eps모터의 센싱 마그네트 결합구조 |
DE102010055481A1 (de) * | 2010-12-22 | 2012-06-28 | Continental Automotive Gmbh | Magnetbaueinheit |
KR101787755B1 (ko) * | 2011-04-15 | 2017-10-18 | 엘지이노텍 주식회사 | Eps모터의 센싱 마그네트 결합구조 |
DE102011089243A1 (de) * | 2011-12-20 | 2013-06-20 | Continental Automotive Gmbh | Magnetrad |
WO2015140961A1 (ja) * | 2014-03-19 | 2015-09-24 | 三菱電機株式会社 | 電動モータおよびこれを用いた電動パワーステアリング装置 |
KR20160135824A (ko) * | 2014-03-26 | 2016-11-28 | 섀플러 테크놀로지스 아게 운트 코. 카게 | 센서 자석 어셈블리 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985004934A1 (en) * | 1984-04-24 | 1985-11-07 | George Salter & Co. Limited | Retaining ring |
DE3622312A1 (de) * | 1986-07-03 | 1988-01-14 | Teewen Bv | Rolle |
DE3732958A1 (de) * | 1987-09-30 | 1989-04-20 | Bosch Gmbh Robert | Drehstellungsgeber zur sensierung der drehstellung eines rotierenden koerpers |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2432819A (en) | 1944-09-28 | 1947-12-16 | Indiana Steel Products Co | Method of making composite permanent magnets |
DE1043540B (de) | 1953-07-24 | 1958-11-13 | Philips Nv | An einer Welle befestigter, hohlzylindrischer Dauermagnet |
JPS5911253B2 (ja) * | 1975-05-22 | 1984-03-14 | ソニー株式会社 | モ−タ |
CH598892A5 (de) | 1976-08-11 | 1978-05-12 | Bbc Brown Boveri & Cie | |
US4336517A (en) * | 1978-09-21 | 1982-06-22 | Jidosha Denki Kogyo Kabushiki Kaisha | Revolution detecting device |
US4492906A (en) * | 1980-10-15 | 1985-01-08 | Yaskawa Electric Mfg. Co., Ltd. | Electric motor |
JPS6225267A (ja) | 1985-07-26 | 1987-02-03 | Honda Motor Co Ltd | 磁気信号発生リング |
JPS6241370U (de) * | 1985-08-28 | 1987-03-12 | ||
JP2503102Y2 (ja) | 1986-05-30 | 1996-06-26 | 矢崎総業株式会社 | 車両用回転検出センサ |
DE8614601U1 (de) | 1986-05-30 | 1986-07-31 | Magnetfabrik Bonn Gmbh Vorm. Gewerkschaft Windhorst, 5300 Bonn | Rotormagnet in Ringform |
DE3636039A1 (de) | 1986-10-23 | 1988-04-28 | Magnetfab Bonn Gmbh | Rotormagnet in ringform |
JPH01299415A (ja) * | 1988-05-28 | 1989-12-04 | Alps Electric Co Ltd | 磁気式エンコーダ |
US5563463A (en) * | 1988-06-08 | 1996-10-08 | General Electric Company | Permanent magnet rotor |
US5019796A (en) | 1989-12-22 | 1991-05-28 | Eastman Kodak Company | Bar magnet for construction of a magnetic roller core |
US5293125A (en) * | 1992-01-17 | 1994-03-08 | Lake Shore Cryotronics, Inc. | Self-aligning tachometer with interchangeable elements for different resolution outputs |
EP0601228B1 (de) * | 1992-12-08 | 1994-10-19 | Siemens Aktiengesellschaft | Elektromotorischer Antrieb |
DE9216750U1 (de) | 1992-12-09 | 1994-04-14 | Windhorst Beteiligungsgesellschaft mbH, 53119 Bonn | Rotormagnet aus kunststoffgebundenem Magnetmaterial |
EP0640838B1 (de) | 1993-08-26 | 1997-01-08 | Siemens Aktiengesellschaft | Welle mit darauf konzentrisch gehaltenem Magnetkörper |
US5608277A (en) * | 1994-12-22 | 1997-03-04 | Avtron Manufacturing, Inc. | Rotary pulse generator having preset sensor gap |
ES2180986T3 (es) | 1996-06-05 | 2003-02-16 | Valeo Auto Electric Gmbh | Anillo magnetico. |
-
1997
- 1997-05-02 ES ES97922949T patent/ES2180986T3/es not_active Expired - Lifetime
- 1997-05-02 US US09/194,997 patent/US6198185B1/en not_active Expired - Lifetime
- 1997-05-02 EP EP97922949A patent/EP0902880B1/de not_active Expired - Lifetime
- 1997-05-02 WO PCT/EP1997/002262 patent/WO1997046850A1/de active IP Right Grant
- 1997-05-02 JP JP10500124A patent/JP2000512749A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985004934A1 (en) * | 1984-04-24 | 1985-11-07 | George Salter & Co. Limited | Retaining ring |
DE3622312A1 (de) * | 1986-07-03 | 1988-01-14 | Teewen Bv | Rolle |
DE3732958A1 (de) * | 1987-09-30 | 1989-04-20 | Bosch Gmbh Robert | Drehstellungsgeber zur sensierung der drehstellung eines rotierenden koerpers |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6198185B1 (en) | 1996-06-05 | 2001-03-06 | Itt Manufacturing Enterprises, Inc. | Magnetic ring |
Also Published As
Publication number | Publication date |
---|---|
EP0902880B1 (de) | 2002-10-23 |
ES2180986T3 (es) | 2003-02-16 |
EP0902880A1 (de) | 1999-03-24 |
US6198185B1 (en) | 2001-03-06 |
JP2000512749A (ja) | 2000-09-26 |
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