EP3191695A1 - Dispositif de réglage électromagnétique - Google Patents

Dispositif de réglage électromagnétique

Info

Publication number
EP3191695A1
EP3191695A1 EP15777610.5A EP15777610A EP3191695A1 EP 3191695 A1 EP3191695 A1 EP 3191695A1 EP 15777610 A EP15777610 A EP 15777610A EP 3191695 A1 EP3191695 A1 EP 3191695A1
Authority
EP
European Patent Office
Prior art keywords
permanent magnets
coil
axial direction
actuating
adjusting device
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.)
Granted
Application number
EP15777610.5A
Other languages
German (de)
English (en)
Other versions
EP3191695B1 (fr
Inventor
Dieter Maisch
Hartmut Weber
Bernhard Schatz
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.)
Hilite Germany GmbH
Original Assignee
Hilite Germany 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 Hilite Germany GmbH filed Critical Hilite Germany GmbH
Publication of EP3191695A1 publication Critical patent/EP3191695A1/fr
Application granted granted Critical
Publication of EP3191695B1 publication Critical patent/EP3191695B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets

Definitions

  • the invention relates to an electromagnetic actuating device, in particular for actuating tasks on an internal combustion engine of a motor vehicle.
  • the engagement surface typically forms the distal end of an anchor unit of the respective actuator unit.
  • the engagement surface In parallel to each other driven engagement surfaces of adjacent actuator units respective seated thereon ram units therefore act eccentrically and with their engagement side faces with the engagement surfaces, whereby a compact arrangement of axially parallel plunger units is carried out, and thus - according to predetermined setting or use conditions - minimum axial distances of the plunger units can be realized to each other.
  • a disadvantage of this solution is that it comes through the eccentric force to tilting moments that lead to increased friction and wear and must be taken over an additional component. Further, an actuator is required for operation for each plunger. In the event of damage, the plungers could unintentionally be actuated simultaneously.
  • each actuator pin is associated with a permanent magnet, wherein the permanent magnets are oppositely poled aligned and a magnetic coil means by electrical Umpolung generates a reversing with the Bestromungsraum magnetic field. Again, the force is applied to the actuator pins due to the small space eccentric.
  • DE 10 201 1 009 327 A1 describes an electromagnetic actuator with eccentric force. Permanent magnets are each assigned to a polar body.
  • DE 10 2009 006 061 A1 discloses an actuating device with two actuating actuators. The actuation actuators are designed as double actuators, each having an armature and a stator unit. The anchor units each comprise an actuating pin, which in addition to the magnetic force by means of spring means is actuated. Permanent magnets connect the actuating pins with centering elements by means of magnetic force.
  • An object of the invention is to provide an electromagnetic actuator with a plurality of actuator elements, which is inexpensive and robust to manufacture with a compact design and low lateral distance of actuators.
  • An electromagnetic positioning device with an actuator unit and an actuating unit acting in an axial direction wherein the actuator unit has a coil producing a magnetic field with a pole core arranged inside the coil. At least two permanent magnets are then arranged on an end face of the pole core in the axial direction, can be applied to these and designed to be displaceable in the axial direction, wherein the permanent magnets of the coil are independently drivable. Furthermore, the permanent magnets are differently polarized in the axial direction and can be driven by energizing the coil, so that when the coil is energized, at least one of two or more permanent magnets moves in the axial direction opposite to the other permanent magnets.
  • the Actuator is arranged in the axial direction subsequent to the actuator unit, wherein the actuating unit comprises at least two actuating elements, which are actuated in the axial direction.
  • each actuating element of the actuating unit is assigned to one of the permanent magnets and actuated by it in the axial direction.
  • the actuator unit and the actuating unit are arranged in a common housing of the adjusting device.
  • the actuating elements and the respective permanent magnet are arranged concentrically, so that a force is applied centrally to the actuating elements, which are arranged rotatably in the housing.
  • actuators are rotatable, wear, for example, when rolling in engagement grooves can be minimized.
  • the electromagnetic actuating device comprises a plurality of permanent magnets, which can be used in particular also at locations with limited installation space and in particular in systems with a small distance of the actuators.
  • the electromagnetic adjusting device comprises a current-carrying coil which is arranged in a housing and has a pole core in the interior for focusing the generated magnetic field.
  • the magnetic field of one coil acts on a plurality of, at least two permanent magnets which actuate actuating elements of an actuating unit.
  • the actuator is an integral part of the actuator.
  • the permanent magnets are attracted or repelled by the magnetic field of the coil. In this way, the permanent magnets, when energizing the coil and generating the magnetic field in the coil, moves and thereby also actuate the actuators of the actuator unit.
  • An adjusting device can independently control two actuating elements.
  • the solution according to the invention requires few components for driving two rams. This results in a saving of space and weight, since each set of components coil, pole core and permanent magnet omitted and a small housing can be used
  • the selection of the controlled actuating element is carried out according to an advantageous embodiment in a simple manner in that the coil has a single winding and the permanent magnets are each driven by reversing and energizing the coil.
  • the selection takes place in that the coil has two windings on a bobbin with different flow directions, wherein a winding is associated with a permanent magnet and the permanent magnets are each driven by energizing the associated winding.
  • a winding is associated with a permanent magnet and the permanent magnets are each driven by energizing the associated winding.
  • the actuating elements are designed as plungers. Conceivable according to the invention, however, other forms of actuators.
  • the actuators may themselves be magnetized or small permanent magnets may be provided with approximately the diameter of the actuators integrated into the actuator.
  • the permanent magnets are arranged as ring magnets on a peripheral shoulder of the actuating elements and provided fixed thereto.
  • the ring magnets are preferably each between two Disc elements of a magnetically conductive material arranged on the shoulder, wherein at least the disc facing the disc element is attached to the actuating element. It results in a simple attachment of the magnets on the actuators.
  • the permanent magnets each comprise a magnetically non-conductive ring element, which can be fastened to the disk elements, the permanent magnets are particularly insensitive to impact and damage with the associated disadvantageous consequences can be ruled out.
  • the permanent magnets are immersed in paragraphs of the housing and each can be applied to a bottom of paragraphs.
  • the magnetic force can then be used in the extended position of the respective actuating element as a holding force and it results in each case a bistable position.
  • the pole core is disposed within the coil and extends at its end associated with the actuating elements in the axial direction almost to one end of the coil, wherein the housing in the axial direction directly adjoins the coil.
  • a particularly high magnetic force can be achieved because the magnetic field lines are introduced approximately perpendicular to the axial direction of the pole core in the housing.
  • FIG. 1 shows a section through a de-energized adjusting device after a
  • Embodiment of the invention wherein the permanent magnets are arranged at the end of the actuating elements within the coil;
  • FIG. 2 shows a section through an energized adjusting device according to a further embodiment of the invention, in which the permanent magnets are arranged at the end of the actuating elements and bear against the end face of the pole core outside the coil.
  • Fig. 3 shows a section through a de-energized adjusting device according to a further embodiment of the invention in the starting position
  • FIG. 4 shows a section through an actuating element of the adjusting device according to FIG.
  • FIG. 1 shows a section through a de-energized adjusting device 10 according to a first embodiment of the invention.
  • the electromagnetic adjusting device 10 comprises an actuator unit 44 and an actuating unit 46 acting in an axial direction L.
  • the actuator unit 44 has a cylindrical, magnetic field generating coil 12 with a pole core 13 arranged inside the coil.
  • Two actuator elements 14, 16 are then arranged on an end face 48 of the pole core 13 in the axial direction L, wherein an actuator element 14, 16 each formed as a permanent magnet 15, 17, or more Gleichpolpolte permanent magnet elements.
  • the coil 12 drives both actuator elements 14, 16.
  • the actuating unit 46 is arranged in the axial direction L subsequent to the actuator unit 44, wherein the actuating unit 46 comprises two actuating elements in the form of plungers 22, 24 which are slidably mounted in bores 32, 34 of the actuating unit 46 in the axial direction L.
  • the plungers 22, 24 of the actuating unit 46 are each associated with one of the actuator elements 14, 16 and the respective actuator elements 14, 16 actuates its associated plunger 22, 24 in the axial direction L. Due to the design of the actuators 22, 24 as a plunger For example, the actuating unit 46 may also be referred to as a ram unit.
  • the shape of the actuators is not limited to a plunger shape.
  • the actuator unit 44 and the plunger unit 46 are arranged in a common housing 26 of the adjusting device, which favors the compact design of the adjusting device 10.
  • the coil 12 is a cylindrical toroidal coil. In the de-energized state, the coil 12, whose coil wires are perpendicular to the plane of representation, no magnetic field. If the coil 12 is energized via the terminals 36, 38, a magnetic field builds up around the coil 12, wherein the field lines again run perpendicular to the coil wires and thus extend in the sectional plane parallel to the display plane. The magnetic field also acts at the location of the actuator elements 14, 16 and thus the permanent magnets 15, 17. Thus occurs an interaction, attractive or repulsive type, between the magnetic field of the coil 12 and the magnetic fields of the permanent magnets 15, 17, which is a movement of the actuator 14, 16 causes.
  • the actuating elements 22, 24 may themselves be magnetized or may be provided as small permanent magnets 15, 17 with approximately the diameter of the actuating elements 22, 24 integrated in the actuating element 22, 24.
  • the Permanent magnets 15, 17 arranged in this embodiment within the coil 12.
  • the permanent magnets 15, 17, which constitute the actuator elements 14, 16, are arranged at the end of the actuating elements 22, 24 and immerse with the actuating elements 22, 24 in an area inside the coil 12.
  • Distances 40, 42 between the permanent magnets 15, 17 and the pole core 13 can be so minimal when the permanent magnets 15, 17 abut the end face 48 of the pole core 13.
  • the actuators 22, 24 are also either magnetized over a portion of their length or are provided with small permanent magnets 15, 17 of approximately the diameter of the actuators 22, 24 at the end of the actuators 22, 24 are arranged.
  • This example represents a very compact and cost-efficient design of the actuators 22, 24, as it is also used in the embodiment in Figure 1.
  • Figure 2 dive the Permanent magnets 15, 17, however, not in the interior of the coil 12, since this interior is filled in this case with the pole core 13.
  • the distance 40, 42 between the permanent magnets 15, 17 and the end face 48 of the pole core 13 can only reduce to zero, so that the permanent magnets 15, 17 abut the pole core 13.
  • FIG. 3 shows a section through a third exemplary embodiment.
  • the permanent magnets 15, 17 are arranged here as ring magnets on a circumferential shoulder 18, 20 of the actuating elements 22, 24 and secured thereto.
  • the actuator 22 is shown in Figure 4 cut in an enlarged view.
  • the actuating element 24 is of identical design, wherein, as described, the polarity of the permanent magnet 17 is reversed.
  • the ring magnet 15 between two disc elements 28, 30 of a magnetically conductive material on the shoulder 18, 20 is arranged.
  • the disk element 18 facing the shoulder 18 is provided annularly and, like the permanent magnet 15, is centered by a central projection 50 and fastened to the actuating element 22, for example by laser welding or gluing.
  • each of a magnetically non-conductive Ring element 56, 58 comprises, they are particularly impact-resistant by such encapsulation and damage with the associated adverse consequences can be excluded.
  • the ring element 56, 58 can also be fastened to the disc elements 28, 30 in a simple and reliable manner by means of laser welding or gluing.
  • the pole core 13 is arranged in this embodiment, only within the coil 12 and the bobbin 60 and extends at its the actuators 22, 24 associated end in the axial direction almost to one end of the coil 12.
  • the housing 26 connects in the axial direction directly to the coil 12 and the bobbin 60, so that a particularly high magnetic force can be achieved because the magnetic field lines approximately perpendicular to the axial direction L are introduced from the pole core 13 in the housing 26.
  • the arrangement of the pole core 13 to the housing 26 is crucial, since an air gap between the pole core 13 and the housing 26 has a very strong influence on the force level of the adjusting device 10.
  • the housing 26 is integrally formed in the area of the actuating unit 46 and additionally comprises the coil 12 on its outer side.
  • the bobbin 60 forms on a side facing away from the actuating unit 46 has a bottom 72 which is sealed to the housing 26.
  • the permanent magnets 15, 17 are further immersed in paragraphs 62, 64 of the housing 26 and each at a bottom 66, 68 of the paragraphs 62, 64 can be applied.
  • the magnetic force can also be used in the extended position of the respective actuating element 22, 24 as a holding force and it results in each case a bistable position.
  • the actuating elements 22, 24 are rotatably arranged in the housing 26, so that Wear, for example, when rolling in engagement grooves can be minimized.
  • the invention is not limited to two actuators. Thus, the arrangement of more than two - for example, four or six - actuators is conceivable.
  • the selection of the controlled actuating element 22, 24 is effected as described in a simple manner in that the coil 12 has a single winding and the permanent magnets 15, 17 are respectively controlled by reversing and energizing the coil 12.
  • the coil 12 on the bobbin 60 also have two windings with different flow directions, whereby the magnetic field builds up in each case in different directions.
  • a different effect on the permanent magnets 15, 17 is applied, so that they can be actuated in each case by energizing the associated winding.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

L'invention concerne un dispositif de réglage électromagnétique (10) qui comporte un actionneur (44) et une unité d'actionnement (46) qui agit dans une direction axiale (L) ; l'actionneur (44) comporte une bobine (12) qui génère un champ magnétique (12) et qui comporte un noyau polaire (13) disposé à l'intérieur de la bobine (12) ; au moins deux aimants permanents (15, 17) sont disposés à la suite d'un côté frontal (48) du noyau polaire (13) par référence à la direction axiale (l), peuvent être appliquées sur ceux-ci et sont conçus de manière à coulisser dans la direction axiale (L) ; les aimants permanents (15, 17) peuvent être entraînés indépendamment l'un de l'autre par la bobine (12), les aimants permanents (15, 17) sont polarisés de manière différente dans la direction axiale et peuvent être commandés chacun par excitation de la bobine (12) de sorte que, lors de l'excitation de la bobine (12), au moins un des deux ou plusieurs aimants permanents (15, 17) se déplace dans la direction axiale (l) à l'opposé de l'autre aimant permanent (15, 17) ; l'unité d'actionnement (46) est disposée à la suite de l'actionneur (44) par référence à la direction axiale (L) ; l'unité d'actionnement (46) comporte au moins deux éléments d'actionnement (22, 24) qui peuvent être actionnés dans la direction axiale (L) ; chaque élément d'actionnement (22, 24) de l'unité d'actionnement (46) est associé à l'un des aimants permanents (15, 17) et est actionné par celui-ci dans la direction axiale (L) ; l'actionneur (44) et l'unité d'actionnement (46) sont disposés dans un boîtier commun (26) du dispositif de réglage. Selon l'invention, les éléments d'actionnement (22, 24) et l'aimant permanent (15, 17) respectif sont disposés de façon concentrique de sorte qu'une force agit centralement sur les éléments d'actionnement (22, 24) qui sont disposés à rotation dans le boîtier (26).
EP15777610.5A 2014-09-11 2015-08-31 Dispositif de réglage électromagnétique Active EP3191695B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102014013191 2014-09-11
DE102014116661 2014-11-14
DE102015113970.7A DE102015113970A1 (de) 2014-09-11 2015-08-24 Elektromagnetische Stellvorrichtung
PCT/EP2015/069826 WO2016037876A1 (fr) 2014-09-11 2015-08-31 Dispositif de réglage électromagnétique

Publications (2)

Publication Number Publication Date
EP3191695A1 true EP3191695A1 (fr) 2017-07-19
EP3191695B1 EP3191695B1 (fr) 2019-10-02

Family

ID=55406165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15777610.5A Active EP3191695B1 (fr) 2014-09-11 2015-08-31 Dispositif de réglage électromagnétique

Country Status (5)

Country Link
US (1) US10714250B2 (fr)
EP (1) EP3191695B1 (fr)
CN (1) CN106716565B (fr)
DE (1) DE102015113970A1 (fr)
WO (1) WO2016037876A1 (fr)

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DE102017106180A1 (de) 2017-03-22 2018-09-27 ECO Holding 1 GmbH Aktuatoreinheit und elektromagnetische Stellvorrichtung mit einer Aktuatoreinheit
DE102017121947A1 (de) * 2017-09-21 2019-03-21 Kendrion (Villingen) Gmbh Stellvorrichtung mit einem abgedichteten Führungszylinder
US11762120B2 (en) * 2018-11-29 2023-09-19 Baker Hughes Holdings Llc Power-efficient transient electromagnetic evaluation system and method
US20200174150A1 (en) * 2018-11-29 2020-06-04 Baker Hughes, A Ge Company, Llc Power-efficient transient electromagnetic evaluation system and method
DE102019103831A1 (de) * 2019-02-15 2020-08-20 Bayerische Motoren Werke Aktiengesellschaft Aktoreinheit für eine formschlüssige, schaltbare Kupplung oder eine Bremse und formschlüssige, schaltbare Kupplung oder Bremse für einen Kraftfahrzeugantriebsstrang
CN114050016B (zh) * 2021-09-15 2024-03-29 上海欧一安保器材有限公司 螺线管致动器
CN114483244B (zh) * 2022-01-26 2023-09-22 重庆长安汽车股份有限公司 一种用于可变气门升程凸轮轴的电磁执行器及车辆

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Also Published As

Publication number Publication date
WO2016037876A1 (fr) 2016-03-17
CN106716565B (zh) 2018-08-31
US10714250B2 (en) 2020-07-14
CN106716565A (zh) 2017-05-24
EP3191695B1 (fr) 2019-10-02
US20170178779A1 (en) 2017-06-22
DE102015113970A1 (de) 2016-03-17

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