EP3673498A1 - Dispositif de réglage électromagnétique - Google Patents

Dispositif de réglage électromagnétique

Info

Publication number
EP3673498A1
EP3673498A1 EP18750413.9A EP18750413A EP3673498A1 EP 3673498 A1 EP3673498 A1 EP 3673498A1 EP 18750413 A EP18750413 A EP 18750413A EP 3673498 A1 EP3673498 A1 EP 3673498A1
Authority
EP
European Patent Office
Prior art keywords
electromagnetic actuator
armature
tubular body
bobbin
plunger
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Withdrawn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
EP18750413.9A
Other languages
German (de)
English (en)
Inventor
Tsuneo Suzuki
Michael TISCHTSCHENKO
Andreas Kammerer
Richard Dickel
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 EP3673498A1 publication Critical patent/EP3673498A1/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Withdrawn legal-status Critical Current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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • 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
    • H01F7/128—Encapsulating, encasing or sealing
    • H01F7/129—Encapsulating, encasing or sealing of armatures
    • 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
    • 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
    • F01L2013/10—Auxiliary actuators for variable valve timing
    • F01L2013/101—Electromagnets
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements

Definitions

  • the present invention relates to an electromagnetic actuator.
  • Such actuating devices comprise a movable along a longitudinal axis ⁇ plunger which can be moved between a retracted position and an extended position.
  • a movable along a longitudinal axis ⁇ plunger which can be moved between a retracted position and an extended position.
  • To move the ram between the retracted and extended STEL lung has the adjusting device to a energisable coil unit, with which in the energized state, a ent ⁇ long a longitudinal axis of the adjusting device movable supported armature can be moved relative to a pole core.
  • the armature cooperates with the plunger such that movement of the armature is transferred along the longitudinal axis to the plunger.
  • Such adjusting devices are also known as electromagnetic ⁇ cal actuators.
  • VEN tile that are opened with the plunger and closed Kings ⁇ nen.
  • An adjusting device used for opening and closing a valve is disclosed in DE 10 2014 113 349 AI.
  • Camshafts have a
  • cams which represent eccentric sections on the No ⁇ ckenwelle.
  • the cams can either be fixedly arranged on the camshaft or on camshaft sections which can be applied in a rotationally fixed but axially displaceable manner to a cylindrical shaft.
  • Angren ⁇ zend arranged, axially movable components can be moved by turning the camshaft at regular intervals with the cams.
  • a highlight application of the camshaft is doing this Opening and closing of valves in an internal combustion engine.
  • Mo ⁇ tor realizedintegrating example of a comfort-oriented to a sporting characteristic, which, among other ⁇ rem by the change of the valve lift, which is determined by the shape of the cams will be implemented.
  • the plungers are movable between a retracted and an extended position, wherein the plungers engage in the extended position in the grooves.
  • the grooves represent a guide ⁇ section and together with the intervening disturbances A guide link for axial adjustment of the cam ⁇ wave or the camshaft section, which must be rotated by a certain amount for this purpose.
  • the electromagnetic Stellvorrich ⁇ tion of the armature and the pole core are in a tubular Kör ⁇ per, also referred to as a guide bush, stored with an open En ⁇ de.
  • the assembly of the adjusting ⁇ device can be simplified, since the armature and the pole core can be introduced via the open end in the tubular body and are thus already prepositioned.
  • Next ⁇ towards the tubular body may be configured such that the armature is guided well and can be easily moved along the longitudinal axis.
  • Object of an embodiment of the present invention is to provide an adjusting device that can be easily mon ⁇ animals.
  • the attachment of the tubular body in the adjusting device should be simplified.
  • An embodiment of the invention relates to an electromagnetic ⁇ tables actuator comprising a Bestrombare Spulenein ⁇ unit and a pole core with which an armature movably mounted along a longitudinal axis between a retracted position and an extended position is movable one ent ⁇ long the longitudinal axis movable mounted ram having a free end portion and with an inner end portion, with which the plunger is fixed to the anchor, wherein the armature and the pole core are arranged in a tubular body with an open end and the tubular body at least one radially inwardly or outwardly extending Befest Trentsab ⁇ section, with which the tubular body rests against the coil unit.
  • the position of the tubular body can be set in ⁇ nergur of the adjusting device in a simple manner.
  • the attachment portion acts as a stop, with wel ⁇ chem the tubular body rests against the coil unit.
  • the position of the tubular body is fixed at least in one direction with respect to the longitudinal axis.
  • its mountings ⁇ constriction portion is arranged in the region of the open end.
  • the attachment portion may be disposed at an arbitrary position of the rohrformigen body.
  • the spools- unit surrounds the tubular body in an approximately annular.
  • the fixing portion is disposed in the area of the open end, the coil unit need not be provided with steps or the like to which the fixing portion may abut. Rather, the already existing end face of the coil unit can be used as a contact surface who ⁇ the, abuts the mounting portion.
  • the attachment portion can be relatively easily finished, since a forming tool can be introduced well into the tubular body via the open end.
  • the additional construction ⁇ wall for implementing the proposed adjusting device is kept particularly low in this embodiment.
  • the fastening portion is designed resiliently. As illustrated, the tubular body rests with the attachment portion to the SPU ⁇ lenhim. With the resilient design of the attachment ⁇ section manufacturing tolerances can be compensated and it can be ensured that the coil unit in the desired installation position within the adjusting device angeord ⁇ net and held in this.
  • the Spu ⁇ lenhen comprises a bobbin and wound on the bobbin coils, the attachment portion rests on Spulenträ ⁇ ger and holds the bobbin axially in position.
  • the bobbin on which the coils can be undergowi ⁇ oped.
  • the use of the bobbin as arrival bearing surface for the attachment portion leads to a ⁇ fold produced actuator. Since the Befest Trentsab ⁇ section serves as a stop for the bobbin, the Be ⁇ fastening section holds the bobbin in the desired axia- len position.
  • the coil ⁇ carrier comprises a first subsection and a second subsection.
  • the coils may be Vollum ⁇ floppylich surrounded by the two-part coil carrier, which is not possible with a one-piece coil former.
  • One of the two subsections acts as a kind of cover, which closes the coils wound on the other subsection.
  • the coils are fixed in this embodiment in their position and better protected from external influences than in a one-piece coil carrier.
  • the bobbin carrier can be designed as an injection molded part.
  • ⁇ form the coil carrier can be produced particularly cost-effective in large quantities.
  • the possi ⁇ ability opens, to coat the tubular body during manufacture of the coil ⁇ carrier.
  • the two-part design of the coil support can be good injection molding manufacture, since undercuts can be ver ⁇ avoided.
  • the coil carrier has a conical section.
  • the conical section By means of the conical section, the introduction of the rohrformigen body can be simplified in the bobbin. Furthermore, the conical section makes it possible to produce the fastening section after insertion of the tubular body into the coil carrier, in particular by forming.
  • the tubular body can be crimped, for example, with the bobbin.
  • the Stellvor ⁇ direction may have a mounting flange for attaching the adjusting ⁇ device to an adjacent component and abut the mounting portion on the mounting flange.
  • the attachment portion is located with respect to the longitudinal axis on one side to the coil unit and at the other ⁇ hand, on the mounting flange, so that the position of the tubular body is uniquely determined with respect to the longitudinal axis.
  • An embodiment of the invention relates to the use of an electromagnetic actuator according to one of the previous embodiments for adjusting camshafts of a Ver ⁇ internal combustion engine, wherein the plunger cooperates with its free Endab ⁇ section in the extended position for adjusting a camshaft with this.
  • Assembly of the adjusting device can therefore be simplified, in particular because of the tubular body may be secured to the coil unit by means of a form ⁇ circuit so that no elaborate attachment measures such as screwing or gluing are necessary.
  • Figure lb) marked in Figure la) section X in egg ⁇ ner enlarged picture of Figure 2a) is a sectional view through a second exporting ⁇ approximately example an electromagnetic ⁇ rule setting device according to the invention
  • FIG. 2b) shows the detail Y marked in FIG. 2a) in an enlarged representation
  • FIG. 1b shows a sectional view of a first Ausure ⁇ tion of an inventive electromagnetic actuator 10i.
  • the Stellvor ⁇ device 10i comprises a tubular body 12 having a offe ⁇ NEN end 14 and a closed end 15 in which an armature 16 and a pole core disposed 18th
  • the pole core 18 has a through hole 28 into which a plunger 22 is inserted.
  • the plunger 22 has a free Endab ⁇ section 24 and an inner end portion 26.
  • the pole core 18 protrudes beyond the open end 14 of the tubular body 12 and is positively secured to a mounting flange 28 ⁇ .
  • the adjusting device 10i With the mounting flange 28, the adjusting device 10i to an adjacent component, not shown, depending on the application, for example, on a
  • Valve seat or a cylinder head cover are fastened when the actuator 10i is used as a cam phaser.
  • a ring around the tubular body 12 around a Spu ⁇ lentician 30 is arranged, which comprises a coil support 32 and ⁇ as wound up coil.
  • the bobbin 32 may be designed as an injection molded part. Radially outward, the adjusting device 10i is closed by means of a tubular housing 36 and on the opposite end of the mounting flange 28 with ei ⁇ NEM lid 38.
  • the coil ⁇ carrier 32 to a conical portion 40 simplifying ⁇ fanned the introduction of the tubular body 12 in the coil carrier 32nd Furthermore, the tubular body 12 in the region of the open end 14 on a relative to the longitudinal axis radially outwardly extending mounting portion 42i, which rests in the assembled state of the actuator 10i on the bobbin 32 and the mounting flange 28.
  • the tubular body 12 is therefore clearly positio ⁇ ned relative to the longitudinal axis L. Further fastening measures such as screwing or gluing are not necessary.
  • the conical section 40 makes it possible to provide the attachment portion 42i after insertion of the tubular portion in the bobbin 32 under Zu ⁇ assistance of a suitable tool by bending the tubular ⁇ shaped body 12.
  • the actuator 10i is operated in the following manner: In Figure la) is the armature 16 and connected to the armature 16 plunger 22 in the retracted position. To keep the on ⁇ ker 16 in the retracted position, a loading can agreed energization of the coil unit 30 may be necessary. Alter ⁇ natively, the armature 16 can be biased by a Fe ⁇ derelement, not shown, in the retracted position, wherein the coil unit 30 does not need to be energized. When ei ⁇ ner corresponding energization of the armature 16 is attracted to the pole core 18 and consequently moves towards him, whereby the plunger 22 is extended. The armature 16 and the plunger 22 are thus in the extended position. If the energization is changed or terminated, the plunger 22 and the armature 16 move back to the retracted position.
  • the armature 16 In order to prevent air or another medium from being compressed when moving the armature 16 towards the pole core 18, the armature 16 has a connection bore 44. Thus, air or other medium may flow from a side of the armature 16 facing the pole core 18 to a side of the armature 16 facing the closed end 15 of the tubular body 12.
  • FIG. 2a shows a sectional illustration of a second exemplary embodiment of the electromagnetic according to the invention
  • the fastening section 422 of the adjusting device IO2 has a plurality of regions 46, 48, 50 which are angled relative to one another.
  • its mountings ⁇ constriction portion 422 viewed radially from inside to outside a first region 46, which is substantially perpendicular to the longitudinal axis L.
  • the Befest Trentsab ⁇ section 422 has a second portion 48 which is inclined relative to the first region 46 in about 45 ° to the closed end 15 of the tubular body 12 through.
  • the fastening portion 422 has a third region 50 which is substantially parallel to the first region 46 and thus perpendicular to the longitudinal axis L ⁇ right. Radially outward, the third area 50 is slightly angled. With the third region 50 of the attachment portion 422 abuts the coil unit 30. Due to the three mutually angled regions 46, 48, 50, the attachment portion 422 has a resilient effect .
  • the bobbin 32 30 includes the coil unit comprises a first subsection 33 and a second sub-portion 35.
  • the two Un ⁇ subparagraphs 33, 35 are madestal ⁇ tet substantially U-shaped and surround the coil 34 completely. With the two outer legs engage the two subsections 33, 35th one another and are positively connected with each other.
  • the attachment portion 422 abuts with the third region on the second subsection 35.
  • the second subsection on an annular projection 52 on the in the installed the adjusting device to stand ⁇ IO2 the lid 38 of the housing 36 rests.
  • the mounting position of the Spulenein ⁇ unit 30 can be influenced with a corresponding positioning of the cover 38, since the mounting portion 422 can be biased due to its resilient effect within certain limits at a ent ⁇ speaking force application.
  • the lid 38 can be, and brings a corresponding biasing force on the projections 52 on the coil unit 30 and consequently on the fixing portion 422 on this, for example, in the housing 36 is screwed ⁇ .

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnets (AREA)

Abstract

L'invention concerne un dispositif de réglage électromagnétique, comprenant : une unité de bobine (30) pouvant être alimentée en courant et un noyau de pôle (18) qui permettent de déplacer un induit (16) monté de manière à pouvoir être déplacé le long d'un axe longitudinal (L) entre une position rentrée et une position sortie; un poussoir (22) monté de manière à pouvoir être déplacé le long de l'axe longitudinal (L), pourvu d'une section d'extrémité libre (24) et d'une section d'extrémité intérieure (26), à l'aide desquelles le poussoir (22) est fixé sur l'induit (16). L'induit (16) et le noyau de pôle (18) sont disposés dans un corps (12) tubulaire pourvu d'une extrémité ouverte (14). Le corps (12) tubulaire comporte au moins une section de fixation (421) s'étendant radialement vers l'intérieur ou l'extérieur, par laquelle le corps (12) tubulaire repose sur l'unité de bobine (30).
EP18750413.9A 2017-08-21 2018-08-02 Dispositif de réglage électromagnétique Withdrawn EP3673498A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017119001.5A DE102017119001A1 (de) 2017-08-21 2017-08-21 Elektromagnetische Stellvorrichtung
PCT/EP2018/071056 WO2019038053A1 (fr) 2017-08-21 2018-08-02 Dispositif de réglage électromagnétique

Publications (1)

Publication Number Publication Date
EP3673498A1 true EP3673498A1 (fr) 2020-07-01

Family

ID=63113538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18750413.9A Withdrawn EP3673498A1 (fr) 2017-08-21 2018-08-02 Dispositif de réglage électromagnétique

Country Status (3)

Country Link
EP (1) EP3673498A1 (fr)
DE (1) DE102017119001A1 (fr)
WO (1) WO2019038053A1 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10196576B4 (de) * 2000-08-28 2005-01-27 Nok Corp. Solenoidventil
JP2003269643A (ja) * 2002-03-19 2003-09-25 Nok Corp ソレノイドバルブ
DE10238840A1 (de) * 2002-08-23 2004-03-04 Thomas Magnete Gmbh Magnetanordnung
DE102006011078B4 (de) * 2006-03-08 2011-05-05 Thomas Magnete Gmbh Hubmagnet sowie Verfahren zu seiner Herstellung
DE202006011904U1 (de) 2006-08-03 2007-12-06 Eto Magnetic Kg Elektromagnetische Stellvorrichtung
WO2008014996A1 (fr) 2006-08-03 2008-02-07 Eto Magnetic Gmbh Dispositif de positionnement électromagnétique
DE102006042214A1 (de) * 2006-09-08 2008-03-27 Schaeffler Kg Elektromagnetische Stelleinheit
DE102007028600B4 (de) 2007-06-19 2011-06-22 ETO MAGNETIC GmbH, 78333 Elektromagnetische Stellvorrichtung
JP5604212B2 (ja) * 2010-08-03 2014-10-08 日立建機株式会社 電磁式駆動ユニットおよびその製造方法
DE102010061219B4 (de) * 2010-12-14 2015-06-11 Hilite Germany Gmbh Elektromagnetisches Stellglied
JP5299499B2 (ja) * 2011-02-17 2013-09-25 株式会社デンソー 電磁ソレノイド
DE102013206976A1 (de) * 2013-04-18 2014-10-23 Schaeffler Technologies Gmbh & Co. Kg Rückhubaktor mit Ankeranschlag
DE102014109124B4 (de) 2014-06-30 2016-05-19 Kendrion (Villingen) Gmbh Elektromagnetische Nockenwellenverstelleinrichtung
DE102014113349A1 (de) 2014-09-16 2016-03-17 Kendrion (Villingen) Gmbh Elektromagnetisch betätigbares Ventil

Also Published As

Publication number Publication date
DE102017119001A1 (de) 2019-02-21
WO2019038053A1 (fr) 2019-02-28

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