EP2929550B1 - Dispositif de réglage électromagnétique - Google Patents

Dispositif de réglage électromagnétique Download PDF

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Publication number
EP2929550B1
EP2929550B1 EP13789230.3A EP13789230A EP2929550B1 EP 2929550 B1 EP2929550 B1 EP 2929550B1 EP 13789230 A EP13789230 A EP 13789230A EP 2929550 B1 EP2929550 B1 EP 2929550B1
Authority
EP
European Patent Office
Prior art keywords
core
coil
units
permanent magnet
core unit
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.)
Active
Application number
EP13789230.3A
Other languages
German (de)
English (en)
Other versions
EP2929550A1 (fr
Inventor
Timo Rigling
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.)
ETO Magnetic GmbH
Original Assignee
ETO Magnetic GmbH
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Filing date
Publication date
Application filed by ETO Magnetic GmbH filed Critical ETO Magnetic GmbH
Publication of EP2929550A1 publication Critical patent/EP2929550A1/fr
Application granted granted Critical
Publication of EP2929550B1 publication Critical patent/EP2929550B1/fr
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/08—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by electric or magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • 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
    • H01F7/1638—Armatures not entering the winding
    • H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
    • 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
    • H01F2007/1669—Armatures actuated by current pulse, e.g. bistable actuators
    • 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 present invention relates to an electromagnetic actuator according to the preamble of the main claim.
  • Such a device is known from DE 10 2007 010 156 A1 known.
  • Another electromagnetic actuator is from the WO 2010/063394 A1 the applicant and describes a coil means having core unit, which is designed to cooperate with relative to the core unit movably guided anchor means in response to energization of the coil means.
  • the anchor means comprise a plurality of ram units which each have permanent magnet means at their end directed towards the core unit.
  • the core unit repels, by the electromagnetically generated flow, a respective one of the permanent magnet units.
  • an electromagnetic actuator device for camshaft adjustment has prevailed.
  • Such a technology makes it possible, in particular, to intervene by means of a ram unit driven in the manner described above into a positioning groove of an adjusting cam or the like of the engine assembly designed to cooperate with the ram end, thus effecting camshaft adjustment.
  • a positioning groove then also allows the return of an extended ram unit back into a stop position on the core unit after the end of the energization.
  • Object of the present invention is therefore to provide an electromagnetic actuator device for simultaneously driving (moving) a plurality of ram units from a starting position in an (approximately offered by a camshaft adjustment) engagement position, which is structurally easy to implement and simplified in assembly and maintenance.
  • the present invention should be particularly suitable for a context of use (intended use) in an internal combustion engine.
  • the generic technology is further developed such that the plurality of plunger units cooperate with their respective permanent magnet means end face with a (possibly multi-part) end face of the core unit, which is homopolar for each of the associated plunger units, i. each having a same polarity at respective times.
  • the present invention differs in principle from that used as generic WO 2010/066394 since the constructional and geometric conditions prevailing there inevitably lead to the fact that different end faces of the core unit are assigned to the end faces associated with the respective one of the tappet units.
  • the invention property " Dermatpolig" with respect to the end face (s) of the core unit does not mean that it is immutable during any operating phases of the electromagnetic actuator device according to the invention.
  • the permanent magnet means (typically realized as permanent-magnetic disks which are provided on one or both ends with suitable flux-conducting disk elements) have an axially rectified permanent magnetization, in other words, between one direction of the permanent -Magnetization of the plurality of adjacently provided permanent magnets of the respective plunger units no directional difference exists.
  • the coil unit realized as a single coil form an axially and centrally extending portion of the core unit enclosing. If this arrangement is then enclosed by a suitable, for example, cup-shaped or hollow-cylindrical housing, a compact, easily produced and magnetically powerful unit is produced, with the (homopolar) end face protruding axially from an enclosed or overlapping region of the coil.
  • the core unit In a constructive-geometric configuration of the core unit not affected by the invention, it is provided to form the core unit as a single core element, which is preferably realized in one piece. This can then engage with the above-described axial center section in the (surrounded) coil, at the same time have a extending out of the coil and radially widening section, which then end- or frontally realized the same pole end face of the core unit.
  • Such a configuration in turn combines constructive simplicity and thus easy Her aus- and assembling with favorable electromagnetic or Fluß operationseigenschaften, so that there are optimized flow conditions for both operating conditions - in de-energized state of adhesion of the plunger units and in the moving or extended state of the plunger units.
  • such a configuration, widened with respect to the end face, of the core unit makes it possible to generate a respective plurality of magnetic flux circuits corresponding to the plurality of tappet units, which can be guided approximately radially-edge-sided to a corresponding housing section and then closed via the housing ,
  • Such an advantageous effect can also be realized by the configuration of the core unit according to the invention by means of a plurality of core elements, wherein according to this embodiment the (uniformly polar) end face can be realized by a plurality of more preferably flat or plate-like core elements, which, more preferably, The magnetically associated or cooperating permanent magnet elements of the plunger units aligned and / or dimensioned accordingly, an optimization allow the mechanical, geometric and magnetic conditions in the actuator device.
  • the flux guiding means thus advantageously cause a magnetic flux distribution into the core elements when the coil is energized, wherein in preferred implementations an air gap is formed between the core elements (core end pieces).
  • the coil unit upstream or associated drive means to design so that they can make the energization in only one polarity, namely that polarity, which in the manner described above when activated the repulsion of the plurality causes the ram units to effect the simultaneous-parallel movement.
  • the present invention is thus outstandingly suitable for realizing a camshaft adjustment with a plurality of suitably engaging ram units, the present invention combining design simplicity and high operational reliability with favorable maintenance and assembly characteristics, in particular providing the opportunity for having substantially standardized ones Components synchronous and parallel movable plunger movements can be realized.
  • a cylindrical core element 10 of the multipart and in Fig. 3 Core unit 12 shown in detail is enclosed on the shell side by a coil 16 wound on a coil carrier 14 and engages at one end in a disk-shaped bottom section 18 of a housing 20 which is in the FIGS. 1 to 3 shown adjusting device of the first embodiment.
  • this is magnetically conductive with a transverse to the axial direction (vertical direction in the figure representation of Fig. 2 ) extending connecting or bridge piece 22, in which in turn dish-shaped ( Fig. 3 ) Core end pieces 24, 26 as a pair of magnetically conductive grip.
  • these form an i.W. in a common, transverse to the longitudinal axis extending plane face of the core unit 12.
  • the first embodiment shown realizes an electromagnetic actuator device having a plurality of two parallel to each other in an axially opposite the bottom surface 18 guide piece 28 guided ram units 30, 32, wherein these elongated plungers 30, 32 together with a relative to the ram diameter widened permanent magnet assembly form respective anchor units which are along and parallel to the axial direction relative to the core unit 12 movable and driven.
  • each of the permanent magnet assemblies has a disk-shaped axially magnetized permanent magnet 34 axially covered on both sides by a magnetic flux-conducting disk 36, 38.
  • the permanent magnetization of the respective permanent magnet assemblies 34, 36, 38 of the two tappet units 30, 32 are directed axially the same, wherein in the in Fig. 2 shown representation of the permanent magnetic south pole is directed upwards and toward the core unit 12.
  • a return to the starting position of Fig. 2 (a) takes place in the described embodiment in that the (not shown) control grooves by cooperating with the engaging ends 42 of the plunger 30, 32 move them back in the direction of the core unit 12, wherein from a certain stroke then in Fig. 2 (a) - Unbestromt - shown situation occurs in which by permanent magnet action of the discs 34, the anchor units are pulled back to the core unit or its end face.
  • the reset can be done without an energization (especially without a reverse polarity current) of the coil 16, even if, according to training and alternatively, such a polarity reversal may optionally support the reset.
  • the Fig. 3 illustrates with its frontal view (a), its rear view (d) and their tilted by 90 ° to each other side views (b) and (c) structural details of the multi-part core unit of the first embodiment.
  • the plate-like elements 24, 26 are aligned in the radial diameter and corresponding to the permanent magnet assemblies 34, 36, 38, so far as the magnetic flux conditions are optimized, it can be done compact and space-saving. It is advantageous both for manufacturing and assembly reasons, as well as for reasons of reliable magnetic flux, the plate-shaped core elements 24, 26 engage with central projections in matched holes or openings of the bridge element 22, as in particular the sectional views of FIGS. 2 (a) or (b) clarify.
  • FIGS. 4 to 6 describes, with otherwise identical constructive realization of the electromagnetic actuator, an alternative embodiment of the core unit.
  • Fig. 4 to Fig. 6 draw in comparison with the first embodiment ( Fig. 1 to 3 ) Identical reference numerals identical or equivalent assemblies, so that for the further description is only a discussion of deviating implemented core unit.
  • the core unit 50 is in FIG FIG. 1 integrally formed.
  • this one-piece core unit includes a center portion 52, to which a pair of radially widened core portions 54 connects, which, in turn provided with a conical shape 56, the end face a gleichpolare surface for cooperation with the plunger units 30, 32 and forming permanent magnet assemblies 34, 36, 38 thereon.
  • the achieved in Fig. 6 from different views shown unitary core unit the same geometry and functionality as the unitized unit of the first embodiment, and also the operation when energizing the coil 16 is corresponding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (8)

  1. Dispositif actionneur électromagnétique ayant une unité de coeur (12, 50) comprenant des moyens de bobinage (16), ladite unité de coeur (12, 50) étant formée pour interagir avec des moyens d'ancrage (34, 36, 38, 32, 30) guidés de manière mouvante en relation à l'unité de coeur comme réaction à une alimentation en courant des moyens de bobinage,
    lesdits moyens d'ancrage comprenant une majorité d'unités de poussoir (30, 32) espacées les unes des autres spatialement et pouvant être entraînées simultanément, auxquelles des agents magnétiques permanents (34) sont associés à chaque fois dans la direction de l'unité de coeur, lesdits agents magnétiques permanents (34) comprenant une magnétisation permanente le long d'une axe longitudinale de mouvement des unités de poussoir respectives, ladite majorité d'unités de poussoir pouvant être entraînés parallèlement les unes aux autres interagissant magnétiquement avec une surface frontale homopolaire de l'unité de coeur et les agents magnétiques permanents comprenant une magnétisation permanente axialement redressée,
    la surface frontale étant réalisée avec une majorité d'éléments de coeur (24, 26) correspondant à la majorité d'unités de poussoirs (30, 32), lesdits éléments de coeur (24, 26) étant connectés les uns aux autres par des moyens conducteurs de flux (22) de manière mécanique et par un flux électromagnétique des moyens de bobinage de manière à conduire le flux,
    caractérisé en ce que
    les moyens de bobinage comprennent une bobine individuelle (14, 16) entourant une section (10, 52) des moyens de bobine et la surface frontale homopolaire dépasse la zone de superposition de la bobine individuelle (14, 16) de manière axiale.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    les unités de poussoir sont guidées dans un élément de guidage (28) et/ou dans une section de guidage qui limite un boîtier (18,40) du côté frontal, ledit boîtier étant de préférence cylindrique et entourant les moyens formant bobinage.
  3. Dispositif selon l'une quelconque des revendications 1 à 2,
    caractérisé en ce que
    les éléments de coeur (24, 26) sont formés sous forme d'assiette et/ou orientés de manière coaxiale et/ou de manière alignée vers un corps d'aimant permanent (34) respectif des agents magnétiques permanents, ledit corps d'aimant permanent (34) étant élargi radialement par rapport aux unités de poussoir.
  4. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    les moyens de coeur, particulièrement dans le domaine de la surface frontale, forment une portion conique.
  5. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    les moyens conducteurs de flux provoquent une répartition du flux dans les éléments de coeur, de préférence une fente d'air étant formée entre les éléments de coeur.
  6. Dispositif selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    des moyens d'entraînement électrique étant associés aux moyens de bobinage, lesdits moyens d'entraînement étant formés pour entraîner et/ou activer l'alimentation en courant crée de manière unipolaire.
  7. Dispositif selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    les moyens de bobinage sont formés pour l'alimentation en courant unipolaire et pas de moyens à inverser les pôles de l'alimentation de courant sont disposés an amont des ou associés aux moyens de bobinage.
  8. Dispositif selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    les unités de poussoir sont formés pour interagir avec un agrégat du moteur à combustion, particulièrement pour commuter ou pour activer une unité de déplacement d'arbre à cames d'un moteur à combustion interne.
EP13789230.3A 2012-12-05 2013-10-30 Dispositif de réglage électromagnétique Active EP2929550B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012111851.5A DE102012111851B4 (de) 2012-12-05 2012-12-05 Elektromagnetische Stellvorrichtung
PCT/EP2013/072737 WO2014086535A1 (fr) 2012-12-05 2013-10-30 Dispositif de réglage électromagnétique

Publications (2)

Publication Number Publication Date
EP2929550A1 EP2929550A1 (fr) 2015-10-14
EP2929550B1 true EP2929550B1 (fr) 2018-12-12

Family

ID=49554223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13789230.3A Active EP2929550B1 (fr) 2012-12-05 2013-10-30 Dispositif de réglage électromagnétique

Country Status (5)

Country Link
US (1) US9551246B2 (fr)
EP (1) EP2929550B1 (fr)
CN (1) CN104798147B (fr)
DE (1) DE102012111851B4 (fr)
WO (1) WO2014086535A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015113970A1 (de) * 2014-09-11 2016-03-17 Hilite Germany Gmbh Elektromagnetische Stellvorrichtung
EP3016117B1 (fr) 2014-10-31 2017-12-06 Husco Automotive Holdings LLC Appareil d'actionneur de broche-poussoir
US10851907B2 (en) 2015-11-09 2020-12-01 Husco Automotive Holdings Llc System and methods for an electromagnetic actuator
US10319549B2 (en) * 2016-03-17 2019-06-11 Husco Automotive Holdings Llc Systems and methods for an electromagnetic actuator
DE102017121947A1 (de) * 2017-09-21 2019-03-21 Kendrion (Villingen) Gmbh Stellvorrichtung mit einem abgedichteten Führungszylinder
US20240031719A1 (en) * 2022-07-21 2024-01-25 Dell Products, Lp System and method for operation of a headset with an adaptive clamping force

Citations (1)

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Publication number Priority date Publication date Assignee Title
WO2010063394A1 (fr) * 2008-12-03 2010-06-10 Eto Magnetic Gmbh Dispositif activateur électromagnétique

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DE102007010156A1 (de) * 2007-03-02 2008-09-04 Audi Ag Ventiltrieb einer Brennkraftmaschine mit mehrstufigen Nockenprofilgruppen und Stellorganen mit mindestens zwei Eingriffselementen
DE102007028600B4 (de) * 2007-06-19 2011-06-22 ETO MAGNETIC GmbH, 78333 Elektromagnetische Stellvorrichtung
DE102008061357A1 (de) 2008-12-10 2010-06-17 Valeo Schalter Und Sensoren Gmbh Überwachungseinrichtung und Verfahren zur Überwachung für Totwinkelbereiche eines Fahrzeugs
DE202008017033U1 (de) * 2008-12-30 2010-05-12 Eto Magnetic Gmbh Elektromagnetische Stellvorrichtung
DE102009015486A1 (de) * 2009-03-28 2010-09-30 Schaeffler Technologies Gmbh & Co. Kg Elektromagnetischer Aktuator
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DE102011009327B4 (de) 2011-01-18 2012-09-27 Hydac Electronic Gmbh Elektromagnetische Stellvorrichtung
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Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
US20150322830A1 (en) 2015-11-12
CN104798147B (zh) 2017-05-17
CN104798147A (zh) 2015-07-22
US9551246B2 (en) 2017-01-24
DE102012111851B4 (de) 2023-03-16
DE102012111851A1 (de) 2014-06-05
WO2014086535A1 (fr) 2014-06-12
EP2929550A1 (fr) 2015-10-14

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