EP2743941A2 - Dispositif d'actionnement - Google Patents

Dispositif d'actionnement Download PDF

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Publication number
EP2743941A2
EP2743941A2 EP20140000892 EP14000892A EP2743941A2 EP 2743941 A2 EP2743941 A2 EP 2743941A2 EP 20140000892 EP20140000892 EP 20140000892 EP 14000892 A EP14000892 A EP 14000892A EP 2743941 A2 EP2743941 A2 EP 2743941A2
Authority
EP
European Patent Office
Prior art keywords
pole
pole tube
actuating device
magnetic
tube
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Withdrawn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
EP20140000892
Other languages
German (de)
English (en)
Other versions
EP2743941A3 (fr
Inventor
Philipp Hilzendegen
Kai Sumpf
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.)
Hydac Fluidtechnik GmbH
Original Assignee
Hydac Fluidtechnik 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 Hydac Fluidtechnik GmbH filed Critical Hydac Fluidtechnik GmbH
Publication of EP2743941A2 publication Critical patent/EP2743941A2/fr
Publication of EP2743941A3 publication Critical patent/EP2743941A3/fr
Withdrawn legal-status Critical Current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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • 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
    • H01F7/081—Magnetic constructions

Definitions

  • the invention relates to an actuating device, in particular for actuating externally connectable valves, having the features in the preamble of claim 1.
  • Acting actuating devices which are also referred to as shift magnets, describes, for example, the DE 101 04 998 A1 .
  • An electromagnetically acting bobbin with a coil winding thereby surrounds a pole core and a pole tube radially.
  • a magnet armature In a cylindrical armature space in the pole tube, a magnet armature is guided axially displaceable.
  • the armature cooperates with an actuator for a valve, such as a spool.
  • Such actuators have separation points or means for magnetic decoupling of the pole tube and the pole core.
  • a closed magnetic circuit is formed from the pole core via the pole tube to a housing which encloses the coil body.
  • the EP 1 887 677 A1 and the JP H07-302709 disclose generic actuating devices in which the pole tubes are decoupled from the pole cores by non-magnetic annular elements.
  • the EP 1 826 784 A2 describes an electromagnetic actuator with a displaceable in a pole tube by means of an electromagnetic coil Anchor on which a plunger is arranged.
  • an electromagnetic coil Anchor on which a plunger is arranged.
  • a permanent magnet and a second, electromagnetic coil are provided. By controlling the operation of the second electromagnetic coil, the effect of the permanent magnet on the armature and its actuating speed is influenced so that precisely controlled movements of the armature are made possible.
  • the DE 44 42 190 A1 shows actuating device, in particular for actuating externally connectable valves, with a bobbin with coil winding, the bobbin at least partially radially surrounds a pole core or a pole tube, and with a guided at least in the pole tube within an armature space armature, which is provided with an actuating element for a Valve or other component may cooperate, and with a means for magnetic interference in the sense of decoupling the pole tube of the pole core, wherein the device comprises at least one magnetic field generating element, wherein the device is an annular permanent magnet disposed between pole tube and pole core is.
  • actuators can be used as an actuator of valves spool axially move or move in a rotating manner.
  • discontinuous movements switching valves
  • continuous movements control valve
  • It can be used to control or direct fluids (directional control valve)
  • the volume flow can thus be influenced (flow valve) or the pressure of the fluid can be adjusted (pressure valves).
  • the actuators are designed as proportional magnetic systems in which the lifting of a movable armature in the stroke direction is proportional to the energization of the coil winding.
  • the present invention seeks to provide an actuator, in particular for valves, which allows a simple way effective magnetic decoupling of pole core and pole tube.
  • a related object solves an actuator with the features of claim 1 in its entirety.
  • the device for influencing the magnetic field is arranged at least partially in the pole tube.
  • a positive connection between the pole tube and the device for magnetic decoupling is provided. This is accomplished by inserting one or more permanent magnets into the outer or inner circumferential surface of the pole tube. Instead of the permanent magnets, as explained, electromagnets occur.
  • recesses which are adapted to the outer contour of the permanent magnets or electromagnets, provide in the pole tube. In the recesses, the permanent or electromagnets can be used to form a press fit respectively.
  • the device for magnetic decoupling in the form of permanent magnets or electromagnets can be contoured and fitted to the profile tube flush with its respective outer peripheral surface or inner peripheral surface and fit.
  • the device for influencing the magnetic field comprises at least one magnetic field-generating element which effects magnetic saturation through the interaction of its magnetic field directed in particular in the radial direction to the pole tube and the magnetic field generated by the coil winding, a magnetic adjustment in the sense of decoupling in FIG allows the described manner.
  • the pole tube it can come by the superposition of the two magnetic fields to the adjustable magnetic saturation in order to control the magnet armature of the actuator with such a high effect, in this regard can also realize high magnetic or switching forces and thus actuating forces for the armature of the actuator ,
  • the device for magnetic separation or decoupling may be formed by one or more permanent magnets whose magnetic field preferably has a radial orientation.
  • a radially oriented magnetic field in the sense of a magnetic decoupling in the pole tube can preferably also be formed by one or more electromagnets, wherein preferably the individual electromagnets occupy a tangential distance from one another.
  • the permanent magnet or electromagnets are preferably arranged radially between the pole tube and the bobbin.
  • the permanent magnets or electromagnets and the device for magnetic decoupling are preferably arranged in an at least partial, non-positive clamping connection between the pole tube and the bobbin.
  • the permanent magnets or electromagnets are present around the pole tube and / or pole core circumference.
  • the permanent magnets or electromagnets preferably have the same tangential Distance from each other and, for example, 120 ° relative to their respective longitudinal axis offset from one another about the inner or outer circumference of the pole tube.
  • the permanent or electromagnets can be formed as rectangular, curved plates or coil windings.
  • the device for magnetic decoupling formed in this way can advantageously be made very flat. Its radial thickness can for example be only 1/8 to 1/3 of the thickness of the bobbin of the actual actuator.
  • the respective permanent magnet or electromagnet may annularly comprise the pole tube or the pole core.
  • the magnet armature At its end facing the pole core, the magnet armature has a cone which can be imaged in a countercone in the pole core. As a result, the magnetic resistance corresponding to the movement of the armature can be reduced toward the pole core. Conversely, the attraction of the bobbin is increased to the armature. In this way, an axial force can be maintained over a longer stroke of the magnet armature. It can thereby represent a desired force-displacement curve.
  • actuating device 1 which is also sometimes referred to technical terms as a switching or actuating magnet and solenoid, is formed essentially of a bobbin 2 with a coil winding 3, which can trigger an actuation operation when energized.
  • the bobbin 2 surrounds radially over its entire length in each case about half a cylindrical pole tube 5 and a cylindrical pole core 4.
  • the pole core 4 is formed integrally with the pole tube 5.
  • a magnet armature 7 is guided axially displaceably in an armature space 6, wherein the armature cooperates at its one end, the pole core 4 facing the end 15 with a plunger or rod-like actuator 8.
  • the actuating element 8 is axially displaceably guided in the pole core 4 and passes completely through the pole core, wherein it can be coupled to an unillustrated fluid valve to its actuation.
  • a non-stick or anti-stick disc 17 is annularly arranged between these components mentioned, which comes to rest with its outer periphery on the inner peripheral surface 13 of the pole tube 5.
  • the pole tube 5 projects with its left end over a coil body 2 and the pole core 4 surrounding housing 19 and is crimped in a, the bottom 18 forming end member 20 and in particular in a circumferential groove 21 of the pertinent end member 20 end. In that regard, results in a pressure-tight closure to the end element 20 out.
  • another circumferential groove 22 is introduced, which receives an annular sealing element 23 and in this respect seals the armature space 6 from the environment.
  • the actuating device 1 is without a usual separation point in the pole tube 5 or between the pole tube 5 and the pole core 4, be it in the form of a weld or in the form of a vacant position ( Air gap), the otherwise usually serve to magnetically decouple the pole tube 5 of the pole core 4.
  • the actuating device 1 provides a device 9 which comprises a magnetic field generating element 10.
  • a plate-like or annular permanent magnet 11 or preferably three plate-like curved permanent magnets 11, which are distributed along the outer circumference, are preferably used for this purpose.
  • the magnetic field generating element 10 or the thus formed permanent magnets 11 generate a radially extending to the pole tube 5 magnetic field, which is able to overlap with the magnetic field of the bobbin 2 such that a magnetic saturation in the pole tube 5 at the location and around the circumference of the pole tube 5, on which the permanent magnets 11 are located, is formed.
  • the Fig. 1 to 3 show embodiments in which the magnetic field generating elements 10 are arranged on or in an outer peripheral surface 12 of the pole tube 5.
  • the permanent magnet 11 is inserted flush into a U-shaped circumferential groove in the pole tube 5, wherein the thickness d of the permanent magnet 11 or of several to the pole tube 5 arranged permanent magnet 11 corresponds to about 1/8 of the thickness D of the bobbin 2.
  • the axial extent of the respective magnet 11 is only about 1/10 of the axial extent of the bobbin 2.
  • Fig. 2 in a longitudinal section illustrated embodiment of an actuating device 1, however, as this particular Fig. 3 in a cross section of Fig. 2 shows three curved plate-like electromagnets 14 provided with their coil windings.
  • the electromagnets 14 are each offset by 120 ° on the outer peripheral surface 12 of the pole tube 5 and the pole core 4 is placed. They are arranged in particular clamping between the pole tube 5 and the bobbin 2.
  • the tangential extension of the electromagnets 14 is in each case about 1/8 of the total circumference of the pole tube 5. Over approximately% of its axial length, the electromagnets 14 are arranged lying on the pole core 4 and extend with their remaining length on the outer peripheral surface of the pole tube 5.
  • the stroke-force characteristic of the actuator 1 by the shape of the end 17 of the armature 7, which faces the pole core 4, are determined.
  • Fig. 4 an embodiment in a schematic longitudinal section, which provides a control cone or a conical taper 16 on the magnet armature 7 in particular for extending the stroke with the most constant lifting force.
  • the conical taper 16 is shown on the magnet armature adjacent end face of the pole core 4.
  • the interaction between the two fields may then be such that, as in the prior art, there is a magnetic separation or decoupling of the pole tube from the pole core; but it is preferably provided that it comes in the pole tube thanks to the superposition of the two fields to a magnetic saturation.
  • the magnetic characteristics emerge directly from the pole tube and change into the actuating armature. This leads to an overall magnetic polarization of the armature, from which an increased force can act on the armature.
  • the interaction can be specified in a relatively wide-drawn frame, i.
  • the superposition of the individual magnetic fields could also be such that the magnetic field generating effect of the coil winding 3 is amplified, for example, to decelerate the armature before it assumes its maximum Endauslenk sued.
  • the respective field superimposition with the main winding of the bobbin 2 can take place in such a way that different forces and travel speeds can be predetermined in the two opposite, possible actuating directions of the armature 7. The latter requires the use of intelligent control.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Magnetically Actuated Valves (AREA)
EP20140000892 2010-04-07 2011-03-19 Dispositif d'actionnement Withdrawn EP2743941A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010014072 DE102010014072A1 (de) 2010-04-07 2010-04-07 Betätigungsvorrichtung
EP11710698A EP2556520A2 (fr) 2010-04-07 2011-03-19 Dispositif d'actionnement

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP11710698A Division EP2556520A2 (fr) 2010-04-07 2011-03-19 Dispositif d'actionnement

Publications (2)

Publication Number Publication Date
EP2743941A2 true EP2743941A2 (fr) 2014-06-18
EP2743941A3 EP2743941A3 (fr) 2014-07-02

Family

ID=44509997

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11710698A Withdrawn EP2556520A2 (fr) 2010-04-07 2011-03-19 Dispositif d'actionnement
EP20140000892 Withdrawn EP2743941A3 (fr) 2010-04-07 2011-03-19 Dispositif d'actionnement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11710698A Withdrawn EP2556520A2 (fr) 2010-04-07 2011-03-19 Dispositif d'actionnement

Country Status (3)

Country Link
EP (2) EP2556520A2 (fr)
DE (1) DE102010014072A1 (fr)
WO (1) WO2011124323A2 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07302709A (ja) 1994-04-30 1995-11-14 Yuken Kogyo Co Ltd 電磁石装置
DE4442190A1 (de) 1994-11-28 1996-05-30 Binder Magnete Einfachhubmagnet
DE10104998A1 (de) 2001-02-03 2002-08-22 Hydac Electronic Gmbh Schaltvorrichtung
EP1826784A2 (fr) 2006-02-24 2007-08-29 Kabushiki Kaisha Toshiba Actionneur électromagnétique
EP1887677A1 (fr) 2005-05-31 2008-02-13 Minebea Co.,Ltd. Moteur force a phase de longue proportion

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2407603A (en) * 1940-04-23 1946-09-10 Derungs Ernest Alphonse Electromagnet
US3805204A (en) * 1972-04-21 1974-04-16 Polaroid Corp Tractive electromagnetic device
JPS5558507A (en) * 1978-10-26 1980-05-01 Nachi Fujikoshi Corp Oil-immersed solenoid
US4540154A (en) * 1982-06-28 1985-09-10 Imperial Clevite Inc. Solenoid valve
JPH0339664Y2 (fr) * 1986-07-18 1991-08-21
DE3627648A1 (de) * 1986-08-14 1988-02-18 Philips Patentverwaltung Gleichstrommagnet
US5146196A (en) * 1991-04-29 1992-09-08 General Motors Corporation Anti-rattle feature for solenoid
DE4137123A1 (de) * 1991-11-12 1993-05-13 Teves Gmbh Alfred Drucksteuerventil
DE4416858C2 (de) * 1994-05-13 1996-04-11 Kuhnke Gmbh Kg H Hubmagnet
DE4423122C2 (de) * 1994-07-01 2001-03-08 Hydraulik Ring Gmbh Pulsweitenmoduliert angesteuerter Proportionalmagnet
US5856771A (en) * 1994-11-28 1999-01-05 Caterpillar Inc. Solenoid actuator assembly
US5785298A (en) * 1996-04-15 1998-07-28 Teknocraft, Inc. Proportional solenoid-controlled fluid valve assembly
DE19700979A1 (de) * 1997-01-14 1998-07-16 Teves Gmbh Alfred Magnetventil
US6498416B1 (en) * 1999-06-23 2002-12-24 Denso Corporation Electromagnetic actuator permanent magnet
US7053742B2 (en) * 2001-12-28 2006-05-30 Abb Technology Ag Electromagnetic actuator having a high initial force and improved latching
US6918571B1 (en) * 2004-11-18 2005-07-19 Eaton Corporation Solenoid operated valve assembly and method of making same
AT503480B1 (de) * 2006-02-06 2008-10-15 Msg Mechatronic Systems Gmbh Hubmagnet
GB0603171D0 (en) * 2006-02-17 2006-03-29 Rolls Royce Plc An actuator
DE102007043553A1 (de) * 2007-03-10 2008-09-11 Continental Teves Ag & Co. Ohg Elektromagnetventil
DE102007038165B4 (de) * 2007-08-13 2011-06-09 Siemens Ag Elektromagnetischer Aktor
DE102008008735B4 (de) * 2008-02-12 2010-05-20 Hydraulik-Ring Gmbh Elektromagnetischer Antrieb
DE202008004843U1 (de) * 2008-04-08 2008-07-17 Staiger Gmbh & Co. Kg Ventil
DE102008040545A1 (de) * 2008-07-18 2010-01-21 Robert Bosch Gmbh Metallisches Verbundbauteil, insbesondere für ein elektromagnetisches Ventil
DE102008040543A1 (de) * 2008-07-18 2010-01-21 Robert Bosch Gmbh Verfahren zur Herstellung eines metallischen Verbundbauteils, insbesondere für ein elektromagnetisches Ventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07302709A (ja) 1994-04-30 1995-11-14 Yuken Kogyo Co Ltd 電磁石装置
DE4442190A1 (de) 1994-11-28 1996-05-30 Binder Magnete Einfachhubmagnet
DE10104998A1 (de) 2001-02-03 2002-08-22 Hydac Electronic Gmbh Schaltvorrichtung
EP1887677A1 (fr) 2005-05-31 2008-02-13 Minebea Co.,Ltd. Moteur force a phase de longue proportion
EP1826784A2 (fr) 2006-02-24 2007-08-29 Kabushiki Kaisha Toshiba Actionneur électromagnétique

Also Published As

Publication number Publication date
WO2011124323A3 (fr) 2012-01-05
EP2743941A3 (fr) 2014-07-02
WO2011124323A2 (fr) 2011-10-13
DE102010014072A1 (de) 2011-10-13
EP2556520A2 (fr) 2013-02-13

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