US3882337A - Hall plate contact-less operator and method of its adjustment - Google Patents

Hall plate contact-less operator and method of its adjustment Download PDF

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Publication number
US3882337A
US3882337A US415335A US41533573A US3882337A US 3882337 A US3882337 A US 3882337A US 415335 A US415335 A US 415335A US 41533573 A US41533573 A US 41533573A US 3882337 A US3882337 A US 3882337A
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US
United States
Prior art keywords
pushrod
housing
magnet
operator
hall generator
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.)
Expired - Lifetime
Application number
US415335A
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English (en)
Inventor
Josef Pfeffer
Horst Schwable
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.)
Rafi Raimund Finsterholzl Elektrotechnische Spezialfabrik
Original Assignee
Rafi Raimund Finsterholzl Elektrotechnische Spezialfabrik
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 Rafi Raimund Finsterholzl Elektrotechnische Spezialfabrik filed Critical Rafi Raimund Finsterholzl Elektrotechnische Spezialfabrik
Application granted granted Critical
Publication of US3882337A publication Critical patent/US3882337A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/90—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of galvano-magnetic devices, e.g. Hall-effect devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00—Electrical generator or motor structure
    • Y10S310/03—Hall effect generators and converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49004—Electrical device making including measuring or testing of device or component part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core

Definitions

  • a Hall generator is carried in a plate.
  • a pushrod member with a permanent magnet is arranged displaceable relative to the Hall gener- Int. Cl. H02k 35/02 mm against the force of a p g 2 Claims, 2 Drawing Figures I fi j I? /i; I] a e 1/ SHEET 2 OF 2 PHENTEBMAY 619? HALL PLATE CONTACT-LESS OPERATOR AND METHOD OF ITS ADJUSTMENT CROSS-REFERENCE TO RELATED APPLICATIONS
  • German Appli cation No. P 2.2563606. filed Nov. l7. I972.
  • the invention relates generally to a contact-less operator or switch using a permanent magnet. and particularly to such an operator or switch for a pathresponsive control of switching. whereby a permanent magnet is moved relatively to a member which is sensitive to magnetic forces for production of electronic control pulses.
  • one object of the present invention to provide a new type of a contact-less operator or switch. which has the characteristics ofthe known contact-less switches and beyond that also which fulfills the last mentioned conditions by making use of a Hall generator. which. in the normal condition of the operator. is outside the air gap of a permanent magnet. but which is between two pole surfaces of the magnet in the air gap after the displacement of the magnet against the force of a spring.
  • FIG. I is a side view in partial cross-section of an operator according to the present invention.
  • FIG. 2 is a simplified diagram for explaining the method of adjusting the magnetic force of the permanent magnet in said operator.
  • the contact-less operator shown in FIG. 1 as side view in partial cross-section comprises a housing I with an end member 2 and a pushrod member 4, which is displaceable in the housing I in the directions indicated by the arrow 3, and which is integral with a pushrod 5.
  • the pushrod 5 carries a removable operating button 6.
  • the pushrod member 4 incorporates an annular permanent magnet 7 which is indicated in the drawing by dash-dot lines.
  • the magnet 7 has an air gap 9, the surfaces of the magnet 7 which define the air gap 9 and which represent the poles being parallel to the direc-" tion of the arrow 3.
  • the pushrod member 4 has guide surfaces (not shown) on its outside which co-operate with guide surfaces (not shown) on the inside wall of the housing I to guide the pushrod member 4 parallel to a plane of symmetry of the magnet 7.
  • the end member 2 of the housing I carries holders 10 which project into the interior of the housing I and between which is positioned a plate [I which comprises a Hall generator.
  • the center portion of the bracket I2 On its side remote from the Hall generator. the center portion of the bracket I2 also carries a projecting pin (not shown) for centering a coil spring 15.
  • the spring 15 extends into the central space of the magnet 7 within a passage which extends into the pushrod member 4 parallel to the direction of the arrow 3.
  • the bracket I2 with its resilient limb portions I3 and the pin for centering the spring I5 is made in one piece from injection-molded plastics material.
  • the magnet 7 is also fixed by injection molding in the pushrod member 4, which comprises plastics material.
  • IC-chip Disposed in the interior of the plate I]. besides the Hall generator, are also other electronic components which form a so-called integrated-circuit or IC-chip.
  • contact terminals 16 In the underside of the plate II are contact terminals 16 for connecting the IC-chip to associated external current sources and other external switching components which are to be controlled by the above-described eontact-less operator.
  • the contact less operator can be so constructed as to be either actuating or arresting. and either illuminated or unilluminated.
  • FIG. 2 shows an arrangement for such precise magnetic adjustment.
  • the assembled operator with housing I and operating button 6 is then brought into the field of a coil which is fed with alternating current from a control unit 21 which is energized from a power supply 22.
  • the coil 20 is used to permanently partially demagnetize the magnet.
  • the operating button 6. together with pushrod S and attached magnet 7 (not shown in H6. 2).
  • the permanent magnet 7 is progressively and permanently de-magnetised by the alternating current field of the coil 20, until the transistor switch. which is connected to the Hall generator and which is linked by adapter 23 to a corresponding current source and a measuring device 24, switches over from one operating condition to the other. If, when this switch-over occurs, a switch is actuated to interrupt the flow of current through the coil. Adjust is effected automatically.
  • buttons 6 A precise displacement of button 6 can easily be achieved by means of a motor 25, associated gear (not shown) and a cam 26 which moves rod 17 in direction of arrow 28.
  • the control unit 21 is operated from the operating desk 29.
  • the above described method may also be slightly modified. Let us assume that the operator should switch after the button has been displaced by 2 mm, but that it switches after a displacement of only l mm mm and a pulse is delivered through adapter 23 to the control unit 21. Now from the control unit there is delivcred an alternating current to coil 21. The intensity of this demagnetising alternating current, in this modification. is controlled by the control unit 21 in relation to the angular position of the cam, and also the demagnetising time is controlled by the control unit. In this way it is possible to weaken the magnetic force of the permanent magnet of the operator to such an extend that the operator switches precisely after the desired displacement of eg, 2 mm.
  • a contact-less operator comprising: a housing, a Hall generator, a plate which carries said Hall generator and is disposed in said housing, a permanent magnet having pole surfaces defining an air gap, a pushrod member carrying said magnet and disposed in said housing.
  • the operator further comprising a retaining loop bracket having a central portion and two resilient limb portions projecting therefrom provided with inwardly projecting portions which engage behind corresponding projections on holders extending inwardly from an end member of the housing, said plate being held between said central portion and said end member.

Landscapes

  • Push-Button Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
US415335A 1972-11-17 1973-11-13 Hall plate contact-less operator and method of its adjustment Expired - Lifetime US3882337A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2256360A DE2256360A1 (de) 1972-11-17 1972-11-17 Kontaktloser taster und schalter

Publications (1)

Publication Number Publication Date
US3882337A true US3882337A (en) 1975-05-06

Family

ID=5861972

Family Applications (1)

Application Number Title Priority Date Filing Date
US415335A Expired - Lifetime US3882337A (en) 1972-11-17 1973-11-13 Hall plate contact-less operator and method of its adjustment

Country Status (5)

Country Link
US (1) US3882337A (de)
JP (1) JPS49133878A (de)
DE (1) DE2256360A1 (de)
FR (1) FR2207393B1 (de)
GB (1) GB1421056A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316977A1 (fr) * 1975-07-07 1977-02-04 Repa Feinstanzwerk Gmbh Dispositif de verrouillage d'urgence pour enrouleurs de ceintures de securite
US4107604A (en) * 1976-12-01 1978-08-15 Compunetics, Incorporated Hall effect displacement transducer using a bar magnet parallel to the plane of the Hall device
US4188605A (en) * 1978-07-21 1980-02-12 Stout Glenn M Encapsulated Hall effect device
US4307617A (en) * 1980-05-12 1981-12-29 Honeywell Inc. Indicating and control apparatus utilizing Hall effect elements
US4359719A (en) * 1980-10-06 1982-11-16 Honeywell Inc. Hall effect alarm pull station
US4489303A (en) * 1983-06-03 1984-12-18 Advanced Control Systems Contactless switch and joystick controller using Hall elements
US5491740A (en) * 1993-10-27 1996-02-13 Activator Systems, Inc. Automated key actuating cellular telephone programmer
EP0870653A1 (de) * 1997-04-11 1998-10-14 TAKATA (EUROPE) VEHICLE SAFETY TECHNOLOGY GmbH Gurtschloss
US6097272A (en) * 1998-11-17 2000-08-01 Korry Electronics Co. Contactless switch
EP1152441A1 (de) * 1999-11-10 2001-11-07 Idec Izumi Corporation Elektrisches teil und not abschaltungssystem und damit versehene kommunikationsvorrichtung
US6612404B2 (en) * 2001-05-25 2003-09-02 Thyssen Elevator Capital Corp. Contactless hall effect push button switch
US6867680B1 (en) * 2000-06-30 2005-03-15 Otto Controls Division, Otto Engineering, Inc Dual magnet hall effect switch
ES2351138A1 (es) * 2010-05-18 2011-02-01 Viva Developments S.L. Celula generadora electromecanica y procedimiento de obtencion de la misma.
CN104883025A (zh) * 2015-06-12 2015-09-02 武汉领普科技有限公司 自复位发电装置及开关

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505092A (en) * 1982-04-26 1985-03-19 Hobart Corporation Package sensing/film control system for film wrapping machine
DE3611579C1 (en) * 1986-04-07 1987-12-10 Kloeckner Moeller Elektrizit Electronic switching apparatus
DE19514708C1 (de) * 1995-04-21 1996-08-08 Kostal Leopold Gmbh & Co Kg Elektrische Schalteinrichtung
TW201426252A (zh) * 2012-12-27 2014-07-01 Hon Hai Prec Ind Co Ltd 防水電子裝置及其磁感應開關

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235776A (en) * 1961-07-31 1966-02-15 Indiana General Corp Permanent magnet stabilizer system and method
US3340467A (en) * 1964-06-23 1967-09-05 Beckman Instruments Inc Magnetic metal detector utilizing a magnetic bridge formed with permanent magnets and a hall effect sensor
US3596144A (en) * 1968-10-31 1971-07-27 Bell Inc F W Automatic magnet charger and calibration system
US3611358A (en) * 1968-01-22 1971-10-05 Olivetti & Co Spa Hall effect keyboard

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560805A (en) * 1968-07-12 1971-02-02 Rfl Ind Inc Apparatus for treating permanent magnets
DE7024643U (de) * 1970-07-01 1971-01-28 Rafi Raimund Finsterholzl, Elektro technische Spezialfabnk, 7980 Ravens burg Einbautaster fuer elektronische geraete
JPS5043096Y2 (de) * 1971-02-22 1975-12-09

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235776A (en) * 1961-07-31 1966-02-15 Indiana General Corp Permanent magnet stabilizer system and method
US3340467A (en) * 1964-06-23 1967-09-05 Beckman Instruments Inc Magnetic metal detector utilizing a magnetic bridge formed with permanent magnets and a hall effect sensor
US3611358A (en) * 1968-01-22 1971-10-05 Olivetti & Co Spa Hall effect keyboard
US3596144A (en) * 1968-10-31 1971-07-27 Bell Inc F W Automatic magnet charger and calibration system

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316977A1 (fr) * 1975-07-07 1977-02-04 Repa Feinstanzwerk Gmbh Dispositif de verrouillage d'urgence pour enrouleurs de ceintures de securite
US4103842A (en) * 1975-07-07 1978-08-01 Repa Feinstanzwerk Gmbh Locking sensor for belt retractor
US4107604A (en) * 1976-12-01 1978-08-15 Compunetics, Incorporated Hall effect displacement transducer using a bar magnet parallel to the plane of the Hall device
US4188605A (en) * 1978-07-21 1980-02-12 Stout Glenn M Encapsulated Hall effect device
US4307617A (en) * 1980-05-12 1981-12-29 Honeywell Inc. Indicating and control apparatus utilizing Hall effect elements
US4359719A (en) * 1980-10-06 1982-11-16 Honeywell Inc. Hall effect alarm pull station
US4489303A (en) * 1983-06-03 1984-12-18 Advanced Control Systems Contactless switch and joystick controller using Hall elements
US5491740A (en) * 1993-10-27 1996-02-13 Activator Systems, Inc. Automated key actuating cellular telephone programmer
EP0870653A1 (de) * 1997-04-11 1998-10-14 TAKATA (EUROPE) VEHICLE SAFETY TECHNOLOGY GmbH Gurtschloss
US6076239A (en) * 1997-04-11 2000-06-20 Takata (Europe) Vehicle Safety Technology Gmbh Seat belt buckle with slide sensor
US6097272A (en) * 1998-11-17 2000-08-01 Korry Electronics Co. Contactless switch
EP1152441A1 (de) * 1999-11-10 2001-11-07 Idec Izumi Corporation Elektrisches teil und not abschaltungssystem und damit versehene kommunikationsvorrichtung
EP1152441A4 (de) * 1999-11-10 2003-09-03 Idec Izumi Corp Elektrisches teil und not abschaltungssystem und damit versehene kommunikationsvorrichtung
US6842123B1 (en) 1999-11-10 2005-01-11 Idec Izumi Corporation Electromechanical switching device and emergency shut-off and communication system utilizing same
US6867680B1 (en) * 2000-06-30 2005-03-15 Otto Controls Division, Otto Engineering, Inc Dual magnet hall effect switch
US6612404B2 (en) * 2001-05-25 2003-09-02 Thyssen Elevator Capital Corp. Contactless hall effect push button switch
US20040104080A1 (en) * 2001-05-25 2004-06-03 Sweet Robert H. Contactless hall effect push button switch
US6854566B2 (en) * 2001-05-25 2005-02-15 Thyssenkrupp Elevator Capital Corp. Contactless push button switch comprising a hall effect transducer and microprocessor
ES2351138A1 (es) * 2010-05-18 2011-02-01 Viva Developments S.L. Celula generadora electromecanica y procedimiento de obtencion de la misma.
CN104883025A (zh) * 2015-06-12 2015-09-02 武汉领普科技有限公司 自复位发电装置及开关
CN104883025B (zh) * 2015-06-12 2019-08-20 武汉领普科技有限公司 自复位发电装置及开关

Also Published As

Publication number Publication date
JPS49133878A (de) 1974-12-23
DE2256360A1 (de) 1974-05-22
FR2207393A1 (de) 1974-06-14
GB1421056A (en) 1976-01-14
FR2207393B1 (de) 1979-03-23

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