EP2556520A2 - Dispositif d'actionnement - Google Patents

Dispositif d'actionnement

Info

Publication number
EP2556520A2
EP2556520A2 EP11710698A EP11710698A EP2556520A2 EP 2556520 A2 EP2556520 A2 EP 2556520A2 EP 11710698 A EP11710698 A EP 11710698A EP 11710698 A EP11710698 A EP 11710698A EP 2556520 A2 EP2556520 A2 EP 2556520A2
Authority
EP
European Patent Office
Prior art keywords
pole
pole tube
magnetic
actuating device
actuating
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Withdrawn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
EP11710698A
Other languages
German (de)
English (en)
Inventor
Kai Sumpf
Philipp Hilzendegen
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
Priority to EP20140000892 priority Critical patent/EP2743941A3/fr
Publication of EP2556520A2 publication Critical patent/EP2556520A2/fr
Withdrawn legal-status Critical Current

Links

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, with a bobbin with coil winding, wherein the bobbin at least partially radially surrounds a pole core or a pole tube.
  • a guided in the pole tube within an armature space armature cooperates with an actuator for a valve or other component.
  • the actuating device further has a device for influencing the magnetic field, in particular decoupling the pole tube from the pole core, in order to form a substantially closed magnetic circuit.
  • Acting actuating devices which are also referred to as shift magnets, describes, for example, DE 101 04 998 AI.
  • An electromagnetically acting bobbin with a coil winding thereby surrounds a pole core and a pole tube radially.
  • 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 former.
  • 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 thus 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 actuating devices are designed as proportional magnet systems in which the lifting work of a magnet armature which can be moved in the stroke direction is proportional to the energization of the coil winding.
  • the invention has the object, an actuating device, in particular for valves to create fen, 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 means for magnetic influencing comprises at least one magnetic field generating element which causes a magnetic saturation by the interaction of its directed in particular in the radial direction of the pole tube magnetic field and the magnetic field generated by the coil winding is a magnetic adjustment, in particular decoupling ment, in the manner described allows.
  • the pole tube it can come to the adjustable magnetic saturation by the superposition of the two magnetic fields in order to be able to control the magnet armature of the actuator with a high effect, with this also high magnetic or switching forces and thus actuating forces for the armature of the actuator let realize.
  • 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.
  • This can be effected by inserting one or more permanent magnets in the outer or inner peripheral surface of the pole tube.
  • electromagnets occur.
  • recesses which are adapted to the outer contour of the permanent magnets or electromagnets, provide in the pole tube. In the recesses can be used to form a press fit the permanent or electromagnets respectively.
  • the device for magnetic decoupling in the form of permanent 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 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 spacing from one another and are arranged, for example, offset by 120 ° relative to their respective longitudinal axis relative to one another about the inner or outer circumference of the pole tube.
  • the permanent magnets or electromagnets can be designed as rectangular, arched plates or as 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 can be reduced according to the movement of the armature to 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.
  • a superposition of magnetic field characteristics such that it comes in case of need in the field of separation to a magnetic field amplification, which is for special applications, such as fast-switching magnets that could be beneficial.
  • FIG. 1 shows a longitudinal section through a first embodiment of an actuating device according to the invention
  • FIG. 2 shows a longitudinal section through a further embodiment of an actuating device according to the invention
  • 3 shows a cross section along the line A - A through the actuator in Figure 2;
  • FIG. 4 shows a longitudinal section through a further embodiment of the actuating device according to the invention.
  • the actuating device 1 shown in FIGS. 1 to 4 in longitudinal sections or in a cross-section (FIG. 3), which is also sometimes referred to as a switching or actuating magnet and electromagnet in technical terms, is essentially formed from a bobbin 2 with a coil winding 3, which can trigger an actuating 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 magnet armature at its one end, the pole core 4 facing the end 15 with a plunger or rod-like actuating element 8 cooperates.
  • the actuating element 8 is guided axially displaceably in the pole core 4 and passes completely through the pole core, wherein it can be coupled to an unillustrated fluid valve for its actuation.
  • a non-stick or Antiklebeactivity 1 7 is annularly arranged between these components mentioned, which comes to lie with its outer periphery on the inner peripheral surface 13 of the pole tube 5.
  • the magnet armature 7 is located with the actuating element 8 in its right stop position, which should correspond to the energized state for the coil winding 3.
  • the pole tube 5 is connected with its left end via 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 so far, results in a pressure-tight termination to the end element 20 out.
  • the closure element 20 which in the manner of a stopper with Axialan- Impact on the Polrohrende rests, a further circumferential groove 22 is introduced, which receives an annular sealing element 23 and insofar seals the armature space 6 from the environment.
  • a connection point, not shown, for the conductor ends of the coil winding 3 is integrated, so that the coil winding 3 can be energized from outside the housing 19 forth.
  • the actuator 1 according to the invention comes 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
  • the actuating device 1 provides a device 9 which comprises a magnetic field generating element 10.
  • the magnetic field generating element 10 or the thus formed permanent magnets 1 1 generate a radially extending to the pole tube 5 magnetic field which is able to be superimposed with the magnetic field of the bobbin 2 such that a magnetic saturation in the pole tube. 5 at the point and around the circumference of the pole tube 5, to which the permanent magnets are 1 1, arises.
  • FIGS. 3 to 3 show exemplary embodiments in which the elements 10 generating a magnetic field are applied to or in an outer peripheral surface 12 of FIGS. 3 to 3
  • Polrohres 5 are arranged. 1, the permanent magnet 1 is 1 dig in a U-shaped circumferential groove in the pole tube 5 is inserted, wherein the thickness d of the permanent magnet 1 1 or more, arranged around the pole tube 5 permanent magnet 1 1 corresponds to about 1/8 of the thickness D of the bobbin 2. In this case, the axial extent of the respective magnet 1 1 is only about 1/10 of the axial extent of the bobbin 2.
  • an actuating device 1 shown in a longitudinal section in Figure 2 however, in a cross section of FIG Fig. 2 shows three curved plate-like electromagnets 14 provided with their coil windings. The electromagnets 14 are each placed offset by 120 ° on the outer peripheral surface 1 2 of the pole tube 5 and the pole core 4.
  • the electromagnets 14 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 VA 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 fifth
  • the stroke-force characteristic of the actuating device 1 can also be determined by the shape of the end 17 of the magnet armature 7 which faces the pole core 4.
  • 4 shows an exemplary embodiment in a schematic longitudinal section, which provides a control cone or a conical taper 16 on the magnet armature 7, in particular for lengthening the stroke with the lifting force as constant as possible.
  • the magnetic resistance is gradually changed according to the movement of the armature 7 and the magnetic attraction force on the magnet armature 7 is increased as a whole.
  • 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 in relatively far drawn frame can be specified, ie in addition to the mentioned magnetic separation and / or the state of saturation of the pole tube, 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 Endauslenkstel- ment.
  • the respective field superposition with the main winding of the bobbin 2 can then 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.
  • the stroke-force characteristic can then be influenced by the following parameters:
  • magnets in the form of different magnets, be it in the form of permanent magnets 1 1 or electromagnets 14 or combinations of these types of magnets, and

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

L'invention concerne un dispositif d'actionnement (1), notamment pour actionner des vannes pouvant être raccordées depuis l'extérieur, avec un corps de bobine (2) muni d'un enroulement de bobine (3). Selon l'invention, le corps de bobine (2) entoure au moins partiellement un noyau polaire (4) ou un tube polaire (5) dans le sens radial et l'objet de l'invention comprend un induit magnétique (7) guidé au moins dans le tube polaire (5) à l'intérieur d'un espace d'induit (6), lequel peut interagir avec un élément d'actionnement (8) pour une vanne ou un autre composant. L'objet de l'invention comprend également un dispositif (9) pour influencer magnétiquement, notamment pour découpler le tube polaire (5) du noyau polaire (4) et se caractérise en ce que le dispositif (9) d'influence magnétique présente au moins un élément (10) qui génère un champ magnétique.
EP11710698A 2010-04-07 2011-03-19 Dispositif d'actionnement Withdrawn EP2556520A2 (fr)

Priority Applications (1)

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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010014072 DE102010014072A1 (de) 2010-04-07 2010-04-07 Betätigungsvorrichtung
PCT/EP2011/001347 WO2011124323A2 (fr) 2010-04-07 2011-03-19 Dispositif d'actionnement

Related Child Applications (1)

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

Publications (1)

Publication Number Publication Date
EP2556520A2 true EP2556520A2 (fr) 2013-02-13

Family

ID=44509997

Family Applications (2)

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

Family Applications Before (1)

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

Country Status (3)

Country Link
EP (2) EP2743941A3 (fr)
DE (1) DE102010014072A1 (fr)
WO (1) WO2011124323A2 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442190A1 (de) * 1994-11-28 1996-05-30 Binder Magnete Einfachhubmagnet
DE10031231A1 (de) * 1999-06-23 2001-05-23 Denso Corp Elektromagnetischer Aktuator mit einem Dauermagneten

Family Cites Families (27)

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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
JP2943046B2 (ja) * 1994-04-30 1999-08-30 油研工業株式会社 電磁石装置
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
DE10104998A1 (de) 2001-02-03 2002-08-22 Hydac Electronic Gmbh Schaltvorrichtung
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
US7688169B2 (en) 2005-05-31 2010-03-30 Minebea Co., Ltd. Long-proportional-stroke force motor
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
JP2007227766A (ja) 2006-02-24 2007-09-06 Toshiba Corp 電磁アクチュエータ
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
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DE102008040545A1 (de) * 2008-07-18 2010-01-21 Robert Bosch Gmbh Metallisches Verbundbauteil, insbesondere für ein elektromagnetisches Ventil
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442190A1 (de) * 1994-11-28 1996-05-30 Binder Magnete Einfachhubmagnet
DE10031231A1 (de) * 1999-06-23 2001-05-23 Denso Corp Elektromagnetischer Aktuator mit einem Dauermagneten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011124323A2 *

Also Published As

Publication number Publication date
EP2743941A2 (fr) 2014-06-18
WO2011124323A3 (fr) 2012-01-05
WO2011124323A2 (fr) 2011-10-13
DE102010014072A1 (de) 2011-10-13
EP2743941A3 (fr) 2014-07-02

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