EP3161839B1 - Système de déphasage d'arbre à cames électromagnétique - Google Patents

Système de déphasage d'arbre à cames électromagnétique Download PDF

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Publication number
EP3161839B1
EP3161839B1 EP15732276.9A EP15732276A EP3161839B1 EP 3161839 B1 EP3161839 B1 EP 3161839B1 EP 15732276 A EP15732276 A EP 15732276A EP 3161839 B1 EP3161839 B1 EP 3161839B1
Authority
EP
European Patent Office
Prior art keywords
armature
unit
camshaft adjuster
pole core
electromagnetic camshaft
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.)
Not-in-force
Application number
EP15732276.9A
Other languages
German (de)
English (en)
Other versions
EP3161839A1 (fr
Inventor
Dominik Halder
Pedro Marull-Kessler
Wolfram Maiwald
Tsuneo Suzuki
Harald Burkart
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.)
Kendrion Villingen GmbH
Original Assignee
Kendrion Villingen 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 Kendrion Villingen GmbH filed Critical Kendrion Villingen GmbH
Publication of EP3161839A1 publication Critical patent/EP3161839A1/fr
Application granted granted Critical
Publication of EP3161839B1 publication Critical patent/EP3161839B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01F7/081—Magnetic constructions
    • 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
    • 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
    • H01F7/088—Electromagnets; Actuators including electromagnets with armatures provided with means for absorbing shocks
    • 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
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • 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
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
    • 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
    • H01F7/126—Supporting or mounting
    • 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
    • H01F2007/086—Structural details of the armature

Definitions

  • the invention relates to an electromagnetic camshaft adjusting device with a movable by energizing a stationary coil unit relative to a pole core and an anchor plunger armature unit and having a permanent magnet unit, by which the armature unit is held in the idle state of the coil unit in a rest position.
  • Such an electromagnetic camshaft adjusting device is for example off DE 20 2011 052 220 U1 known.
  • the permanent magnet unit has a disk-shaped permanent magnet there, which is accommodated between a first and a second magnetically conducting pole disk.
  • the two pole discs are welded to the anchor tappet.
  • the protruding from the housing of the electromagnetic camshaft adjusting device end of the anchor plunger engages in a circumferential groove of a cam shaft adjustable on a cam.
  • This electromagnetic camshaft adjusting device has no spring device.
  • Another electromagnetic camshaft adjusting device describes the EP 2 252 774 B1 which is also placed on the end face of a camshaft of an internal combustion engine and causes axial movement of the camshaft adjustment in response to energization of the stationary coil unit and thereby caused by moving the armature unit or the associated armature tappet.
  • the local yoke unit is rotatably mounted relative to the coil unit.
  • the armature unit with the armature plunger is arranged fixed in the rotatable yoke and core unit.
  • the armature unit including the surrounding yoke unit, can rotate with the camshaft.
  • EP 1 421 591 B1 an electromagnetic camshaft adjusting device.
  • a permanent magnet between two pole discs, which in turn is firmly connected to the armature unit or the armature tappet. In the rest position, that is, when the coil is not energized, the permanent magnet unit ensures that the armature unit is held fast on the pole core. Only a current applied to the coil generates a magnetic field which counteracts the field of the permanent magnet discs and the armature unit is supported by a spring force repelled by the pole core.
  • a coil spring is provided whose spring force is smaller than the holding force of the permanent magnet disc in the de-energized state of the coil unit.
  • the present invention aims to propose a further electromagnetic camshaft adjusting device, which is simple to manufacture and nevertheless allows very fast switching times, in particular switching times of less than three milliseconds.
  • the permanent magnet unit is arranged fixedly between a housing cover and the pole core of the electromagnetic drive unit.
  • the armature plunger is rotatably arranged in an armature of the armature unit, wherein the spring device is supported on a part of the armature unit, which is arranged rotationally fixed or approximately rotationally fixed.
  • the part of the anchor unit is the anchor in which the anchor tappet is rotatably seated.
  • Such an electromagnetic camshaft adjusting device is characterized by a very compact design and by very constant switching times, which can be below three milliseconds.
  • Particularly advantageous is the fixed arrangement of the permanent magnet between the housing cover and pole core. This simplifies the construction of the electromagnetic camshaft adjusting device, since the permanent magnet can be installed without any bearing or guide bushes.
  • the anchor unit is designed as a cup-shaped anchor, the bottom of which has an opening through which the anchor plunger engages.
  • the armature plunger is rotatably arranged in the armature.
  • Such a rotatable arrangement of the armature tappet in or on the armature has the advantage that the armature itself only axially displaceable, but rotationally fixed, can be arranged in the electromagnetic camshaft adjusting.
  • the anchor unit or the armature can be axially movable, but rotationally guided, according to an embodiment of the invention in a guide bush.
  • a torsional strength can be achieved, for example, by virtue of the fact that the guide bushing has on its side facing the armature unit and the armature unit on its side facing the guide bushing a tongue and groove guide which extends along the center axis of the electromagnetic camshaft adjusting device.
  • the anchor plunger protrudes through the bottom of the cup-shaped anchor and is gripped on the inside of the anchor at the bottom of a retaining washer and fixed there, preferably so that the anchor plunger continue to rotate in the armature and in the opening of the retaining disc can.
  • the inventively provided spring means for supporting the force of the movement of the armature unit in the direction of the camshaft is supported at one end on a suitable surface within the camshaft adjusting, for example on the housing cover, and with its opposite, the camshaft end facing the anchor unit.
  • the spring device is supported with one end at the bottom of the cup-shaped anchor from.
  • the above-mentioned retaining disk has a smaller diameter than the spring device preferably designed as a helical spring. hereby
  • the front end of the spring device may be supported at the bottom of the anchor of the anchor unit.
  • FIG. 1 1 shows an electromagnetic camshaft adjusting device 10 with a center axis X.
  • the electromagnetic camshaft adjusting device 10 has a pot-shaped housing 11 with an excitation coil 22 of a coil unit 20 seated rotationally symmetrical to the center axis X.
  • the exciter coil 22 of the coil unit 20 sits on a coil carrier body 23.
  • the housing 11 is at his in FIG. 1 Top side shown closed by a cover 12. At its lower side, the housing 11 has an opening 13 in which an adapter element 14 is seated with a centric Opening, through which, in a manner to be explained, an actuating element protrudes for adjusting a camshaft 80 by this actuator engages in a cam groove 82 of the camshaft 80.
  • the adapter element 14 passes through a flange 100.
  • the housing 11 of the electromagnetic camshaft adjusting device 10 rests on this flange 100.
  • a pole core 30 spaced from the inside of the electromagnetic camshaft adjusting device 10 facing surface of the lid 12.
  • This pole core 30 is directed towards the camshaft 80 with a conically tapered peripheral surface formed to provide a known control cone.
  • a permanent magnet unit 60 is arranged in the form of a permanent magnet disc.
  • the cover 12, the permanent magnet unit 60 and the pole core 30 are fixed and placed within each other preferably without gaps within the housing 11.
  • both the pole core 30 and the permanent magnet disc 60 are annular and have a central opening through which a spring means 70, in this case a coil spring engages.
  • the coil spring 70 is aligned centrally to the center axis X and relies on her in FIG. 1 End shown above in an annular groove 12 a of the lid 12 from. With its opposite end, the coil spring 70 is supported on the bottom 42 of a pot-shaped armature 41. From the bottom 42 of the armature 41 extends upward and the coil spring 70 encompassing a circumferential wall 43 of the armature 41.
  • the bottom 42 of the armature 41 has an opening 46 through which the upper end of an anchor tappet 44 protrudes.
  • This armature tappet 44 forms the aforementioned control element for the camshaft 80.
  • the armature tappet 44 is gripped by a retaining disk 45 at its end protruding through the bottom 42 of the armature 41 and fixed by the latter to the armature 41.
  • This fixing is achieved by the retaining washer 45 in that it engages in a circumferential groove at the upper end of the armature tappet 44 similar to a retaining ring and cooperates at the lower end of the bottom 42 of the armature 41 with a ring-shaped projecting flange 44a of the armature tappet 44.
  • the entire armature unit 40 that is to say the armature 41 and the armature tappet 44, are axially movable in the axial direction of the center axis X. This means that during an axial movement of the armature 41, the anchor tappet axially fixed on the armature is moved.
  • the armature 41 is seated in a guide bush 47, which allows the armature 41 to move axially.
  • the armature 41 - unlike the armature tappet 44 - within this guide bushing 47 is not arranged or almost non-rotatable.
  • a suitable tongue and groove connection can be provided.
  • the guide bushing 47 may have a longitudinal groove running parallel along the center axis X into which a protruding longitudinal ridge also extending parallel along the center axis X engages the peripheral wall 43 of the armature 41.
  • the better clarity is such a tongue and groove connection between the armature 41 and guide bushing 47 in FIG. 1 not shown.
  • the armature 41 may be rotatably arranged with respect to the guide bushing 47.
  • the armature plunger 44 is rotatably placed in the opening 46 in the bottom 42 of the armature 41.
  • Such a rotatable placement of the armature tappet 44 can be achieved, for example, by providing a certain clearance between the opening 46 of the armature 41 and the armature tappet 44, on the one hand, and between the spacing of the retaining disk 45 and the flange 44a.
  • a flange-shaped yoke 32 which is fixedly placed within the housing 11 of the electromagnetic camshaft adjusting device 10 and the magnetic counterpart to the pole core 30 represents.
  • the pole core 30 and the yoke 32 are preferably fixed to a further sleeve 36, for example by welding.
  • both the lid 12 and the yoke 32 are sealed by means of sealing rings 37, 38 relative to the sleeve 36.
  • Such an electromagnetic camshaft adjusting device 10, as in FIG. 1 is shown works as follows. It is also on the representations of the FIGS. 2 and 3 Referring to the electromagnetic camshaft adjusting device 10 in each case, to be explained yet operating states. However, the known reference numerals are the same.
  • FIG. 1 shows the electromagnetic camshaft adjusting device at rest, ie when energized excitation coil 22. It is assumed that the armature tappet 44 is initially in its uppermost position. In this state, due to the permanent magnet unit 60, a magnetic flux of force is provided, which keeps the armature unit 40 applied to the pole core 30. It is essential that the spring device 70, so the proposed coil spring in the embodiment has a spring force which is smaller than the holding force of the permanent magnet unit 60 in the de-energized state of the exciter coil 22nd
  • the field coil 22 flows through current such that the force caused thereby the force of the permanent magnet unit 60 is directed, the force of the permanent magnet unit 60 is minimized or lifted, so that the spring force of the spring means 70 is sufficient, the armature 41 on Push away anchor tappet 44.
  • this can happen so quickly that within less than 3 msec a pushing away of the armature plunger 44 is possible to engage in the camshaft groove 82 of the camshaft 80 and adjust them accordingly.
  • the force of the permanent magnet unit 60 extends in the in FIG. 2 then maximum extended position of the anchor tappet 44 then no longer to retrieve the armature 41.

Landscapes

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

Claims (8)

  1. Dispositif de réglage électromagnétique d'un arbre à cames (10) équipé d'une unité d'induit (40) pouvant être déplacée par rapport à un noyau polaire (30) par alimentation en courant d'une unité de bobine stationnaire (20) et comportant un poussoir d'induit (44), ainsi que d'une unité d'aimant permanent (60) montée solidairement entre un couvercle de boîtier (12) et le noyau polaire (30), et par l'intermédiaire de laquelle, lorsque l'unité de bobine (20) n'est pas alimentée en courant l'unité d'induit (40) est maintenue en position de repos, et d'un dispositif de ressort (70) monté entre le noyau polaire (30) et l'unité d'induit (40) pour pousser l'unité d'induit (40) pour l'éloigner axialement du noyau polaire (30), la force de rappel du dispositif de ressort (70) qui s'appuie sur l'induit (41) de l'unité d'induit (40) étant inférieure à la force de retenue de l'unité d'aimant permanent (60) lorsque l'unité de bobine (20) n'est pas alimentée en courant et le poussoir d'induit (44) étant monté mobile en rotation dans l'induit (41) monté fixe en rotation de l'unité d'induit (40).
  2. Dispositif de réglage électromagnétique d'un arbre à cames (10) conforme à la revendication 1,
    caractérisé en ce que
    l'unité d'induit (40) comporte un induit (41) en forme de pot au fond (42) duquel est prévue une ouverture (46) au travers de laquelle passe le poussoir d'induit (44).
  3. Dispositif de réglage électromagnétique d'un arbre à cames (10) conforme à la revendication 2,
    caractérisé en ce que
    le dispositif de ressort (70) est un ressort de pression qui s'appuie contre le fond (42) de l'induit (41).
  4. Dispositif de réglage électromagnétique d'un arbre à cames (10) conforme à l'une des revendications 1 à 3,
    caractérisé en ce que
    l'unité d'induit (40) est montée mobile axialement dans une douille de guidage (47), et l'unité d'induit (40) est guidée solidairement en rotation dans cette douille de guidage (47).
  5. Dispositif de réglage électromagnétique d'un arbre à cames (10) conforme à la revendication 4,
    caractérisé en ce qu'
    entre le noyau polaire (30) et l'unité d'induit (40) est prévu un intervalle (49) qui est réalisé de façon à s'agrandir vers l'axe médian (X) de l'unité de réglage électromagnétique (10) de l'arbre à cames.
  6. Dispositif de réglage électromagnétique d'un arbre à cames (10) conforme à l'une des revendications 1 à 5,
    caractérisé en ce que
    le noyau polaire (30) et une unité d'armature (32) sont reliés solidairement par l'intermédiaire d'une douille (36).
  7. Dispositif de réglage électromagnétique d'un arbre à cames (10) conforme à la revendication 6,
    caractérisé en ce que
    le noyau polaire (30) et l'unité d'armature (32) sont soudés à la douille (36).
  8. Dispositif de réglage électromagnétique d'un arbre à cames (10) conforme à l'une des revendications 1 à 7,
    caractérisé en ce que
    le poussoir d'induit (44) est entouré par un disque de retenue (45) au fond (42) de l'induit (41) en forme de pot et fixé à celui-ci.
EP15732276.9A 2014-06-30 2015-06-30 Système de déphasage d'arbre à cames électromagnétique Not-in-force EP3161839B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014109124.8A DE102014109124B4 (de) 2014-06-30 2014-06-30 Elektromagnetische Nockenwellenverstelleinrichtung
PCT/EP2015/064896 WO2016001254A1 (fr) 2014-06-30 2015-06-30 Système de déphasage d'arbre à cames électromagnétique

Publications (2)

Publication Number Publication Date
EP3161839A1 EP3161839A1 (fr) 2017-05-03
EP3161839B1 true EP3161839B1 (fr) 2018-06-13

Family

ID=53491542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15732276.9A Not-in-force EP3161839B1 (fr) 2014-06-30 2015-06-30 Système de déphasage d'arbre à cames électromagnétique

Country Status (10)

Country Link
US (1) US10290410B2 (fr)
EP (1) EP3161839B1 (fr)
JP (1) JP2017520714A (fr)
CN (1) CN106471589B (fr)
BR (1) BR112016029502A2 (fr)
DE (1) DE102014109124B4 (fr)
ES (1) ES2682420T3 (fr)
HU (1) HUE038825T2 (fr)
RU (1) RU2017102683A (fr)
WO (1) WO2016001254A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015115684A1 (de) * 2015-09-17 2017-03-23 Eto Magnetic Gmbh Elektromagnetische Aktuatorvorrichtung sowie System
DE102016116777A1 (de) 2016-09-07 2018-03-08 Kendrion (Villingen) Gmbh Elektromagnetische Stellvorrichtung insbesondere zum Verstellen von Nockenwellen eines Verbrennungsmotors
DE102016116776A1 (de) 2016-09-07 2018-03-08 Kendrion (Villingen) Gmbh Elektromagnetische Stellvorrichtung insbesondere zum Verstellen von Nockenwellen eines Verbrennungsmotors
DE102017107403A1 (de) 2017-04-06 2018-10-11 Kendrion (Villingen) Gmbh Elektromagnetische Stellvorrichtung insbesondere zum Verstellen von Nockenwellen eines Verbrennungsmotors
DE102017119001A1 (de) 2017-08-21 2019-02-21 Kendrion (Villingen) Gmbh Elektromagnetische Stellvorrichtung
DE102017121723B4 (de) * 2017-09-19 2021-07-01 Kendrion (Villingen) Gmbh Elektromagnetische Stellvorrichtung insbesondere zum Verstellen von Nockenwellen eines Verbrennungsmotors
JP6798755B2 (ja) * 2017-11-09 2020-12-09 株式会社Ｓｏｋｅｎ ソレノイド装置
DE102018117074A1 (de) * 2018-07-13 2020-01-16 Svm Schultz Verwaltungs-Gmbh & Co. Kg Elektromagnetischer Aktuator mit Ankerscheibe
JP2021017902A (ja) * 2019-07-17 2021-02-15 Smc株式会社 電磁弁

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US5627504A (en) * 1992-04-07 1997-05-06 Avl Medical Instruments Ag Electromagnetic actuating device, in particular for a valve
DE20114466U1 (de) * 2001-09-01 2002-01-03 Eto Magnetic Kg Elektromagnetische Stellvorrichtung
US7053742B2 (en) * 2001-12-28 2006-05-30 Abb Technology Ag Electromagnetic actuator having a high initial force and improved latching
AU2004271641B9 (en) * 2003-09-05 2008-08-14 Abb Schweiz Ag Electromagnetic actuator with improved initial and latching forces
JP4910663B2 (ja) 2006-02-27 2012-04-04 富士電機機器制御株式会社 釈放形電磁装置
DE102009015833B4 (de) 2009-04-01 2011-04-28 Hydac Electronic Gmbh Elektromagnetische Stellvorrichtung
DE202009004611U1 (de) * 2009-04-03 2010-08-12 Eto Magnetic Gmbh Elektromagnetische Nockenwellen-Verstellvorrichtung
DE102009049009B4 (de) * 2009-10-09 2012-10-04 Pierburg Gmbh Aktuator für eine Verbrennungskraftmaschine
DE102010045601B4 (de) 2010-09-16 2013-04-18 Hydac Electronic Gmbh Elektromagnetische Stellvorrichtung
DE202011052220U1 (de) 2011-12-07 2013-03-11 Eto Magnetic Gmbh Bistabile elektromagnetische Stellvorrichtung sowie Nockenwellenstellvorrichtung

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Also Published As

Publication number Publication date
JP2017520714A (ja) 2017-07-27
RU2017102683A (ru) 2018-07-31
CN106471589B (zh) 2018-08-31
US10290410B2 (en) 2019-05-14
EP3161839A1 (fr) 2017-05-03
BR112016029502A2 (pt) 2017-08-22
WO2016001254A1 (fr) 2016-01-07
ES2682420T3 (es) 2018-09-20
DE102014109124A1 (de) 2015-12-31
DE102014109124B4 (de) 2016-05-19
HUE038825T2 (hu) 2018-11-28
CN106471589A (zh) 2017-03-01
US20180144855A1 (en) 2018-05-24

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