EP0859380A3 - Double acting electromagnetic actuator - Google Patents

Double acting electromagnetic actuator Download PDF

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Publication number
EP0859380A3
EP0859380A3 EP97117126A EP97117126A EP0859380A3 EP 0859380 A3 EP0859380 A3 EP 0859380A3 EP 97117126 A EP97117126 A EP 97117126A EP 97117126 A EP97117126 A EP 97117126A EP 0859380 A3 EP0859380 A3 EP 0859380A3
Authority
EP
European Patent Office
Prior art keywords
armature
case
magnetic flux
coils
electromagnetic actuator
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.)
Granted
Application number
EP97117126A
Other languages
German (de)
French (fr)
Other versions
EP0859380A2 (en
EP0859380B1 (en
Inventor
Volkmar Leutner
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 EP0859380A2 publication Critical patent/EP0859380A2/en
Publication of EP0859380A3 publication Critical patent/EP0859380A3/en
Application granted granted Critical
Publication of EP0859380B1 publication Critical patent/EP0859380B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/17—Pivoting and rectilinearly-movable armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F2007/1684—Armature position measurement using coils

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electromagnets (AREA)

Abstract

Es wird ein elektromechanischer Doppelhubmagnet (10) vorgeschlagen, der neben der axialen Hubbewegung seines Ankers (33) aus einer Ruhestellung nach beiden Richtungen zur Erhöhung seiner Funktionalität eine zusätzliche Drehbewegung ausführen kann. Eine zwischen zwei Spulen (18, 19) angeordnete, magnetflußleitende Mittelscheibe (35) und der Anker (33) im Bereich unter der Mittelscheibe haben durch Aussparungen gebildete gehäusefeste Statorpole (51) und Ankerpole (54), die in Nullstellung bei nicht erregten Spulen (18, 19) in Umfangsrichtung zueinander versetzt liegen und bei erregten Spulen durch Magnetfluß ein Drehmoment erzeugen, das den Anker (33) rotatorisch gegen eine rückstellende Federkraft verstellt. Der Doppelhubmagnet (10) eignet sich besonders zum Steuern eines Ventils im Failsafe-Fall und im Betriebsfall bei nur einer einzigen elektrischen Achse.

Figure 00000001
An electromechanical double stroke magnet (10) is proposed which, in addition to the axial stroke movement of its armature (33), can perform an additional rotary movement from a rest position in both directions to increase its functionality. A stator poles (51) and armature poles (54), which are fixed to the housing and formed by recesses, have a magnetic flux-conducting center disk (35) arranged between two coils (18, 19) and the armature (33) in the area under the center disk. 18, 19) are offset from one another in the circumferential direction and, in the case of excited coils, generate a torque by magnetic flux which rotates the armature (33) against a restoring spring force. The double-stroke magnet (10) is particularly suitable for controlling a valve in the fail-safe case and in the case of operation with only a single electrical axis.
Figure 00000001
EP97117126A 1997-02-14 1997-10-02 Double acting electromagnetic actuator Expired - Lifetime EP0859380B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19705598A DE19705598A1 (en) 1997-02-14 1997-02-14 Electromechanical double stroke magnet
DE19705598 1997-02-14

Publications (3)

Publication Number Publication Date
EP0859380A2 EP0859380A2 (en) 1998-08-19
EP0859380A3 true EP0859380A3 (en) 1998-11-18
EP0859380B1 EP0859380B1 (en) 2002-06-05

Family

ID=7820191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117126A Expired - Lifetime EP0859380B1 (en) 1997-02-14 1997-10-02 Double acting electromagnetic actuator

Country Status (3)

Country Link
EP (1) EP0859380B1 (en)
JP (1) JPH10233312A (en)
DE (2) DE19705598A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9819844D0 (en) * 1998-09-12 1998-11-04 Kelsey Hayes Co Electromagnetic actuator
DE10320729A1 (en) 2003-05-08 2004-11-18 Bosch Rexroth Ag Solenoid arrangement for a hydraulic servo- or control valve that has a fail-safe position, whereby a fail-safe magnet is provided that is penetrated by or surrounded by the push rod of the proportional magnet
DE102006007157A1 (en) * 2005-07-20 2007-01-25 Continental Teves Ag & Co. Ohg Electrically controllable valve
DE102006010913B3 (en) * 2006-03-09 2007-06-21 Hydac Electronic Gmbh Operating device for implementing control functions, has stretching finger, tapered surface, extension and disk spring plate unit that are switchable between locking condition and release condition
EP2179176B1 (en) 2007-08-20 2013-04-03 Robert Bosch GmbH Hydraulic system with an adjustable hydrostatic machine
DE102015003672A1 (en) * 2015-03-20 2016-09-22 Hydac Electronic Gmbh actuator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838370A (en) * 1972-09-02 1974-09-24 Akuto Giken Kk Solenoid magnet
US4501981A (en) * 1981-10-15 1985-02-26 Haydon Switch & Instrument, Inc. Return-to-zero stepper motor
DE4208367A1 (en) * 1992-03-16 1993-09-23 Bosch Gmbh Robert ELECTROMECHANICAL DOUBLE LIFT MAGNET

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838370A (en) * 1972-09-02 1974-09-24 Akuto Giken Kk Solenoid magnet
US4501981A (en) * 1981-10-15 1985-02-26 Haydon Switch & Instrument, Inc. Return-to-zero stepper motor
DE4208367A1 (en) * 1992-03-16 1993-09-23 Bosch Gmbh Robert ELECTROMECHANICAL DOUBLE LIFT MAGNET

Also Published As

Publication number Publication date
DE19705598A1 (en) 1998-08-20
JPH10233312A (en) 1998-09-02
EP0859380A2 (en) 1998-08-19
EP0859380B1 (en) 2002-06-05
DE59707411D1 (en) 2002-07-11

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