EP3443571B1 - Stromlos monostabile elektromagnetische stellvorrichtung und verwendung einer solchen - Google Patents

Stromlos monostabile elektromagnetische stellvorrichtung und verwendung einer solchen Download PDF

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Publication number
EP3443571B1
EP3443571B1 EP17719166.5A EP17719166A EP3443571B1 EP 3443571 B1 EP3443571 B1 EP 3443571B1 EP 17719166 A EP17719166 A EP 17719166A EP 3443571 B1 EP3443571 B1 EP 3443571B1
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EP
European Patent Office
Prior art keywords
unit
coil
armature
armature unit
force
Prior art date
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Active
Application number
EP17719166.5A
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German (de)
English (en)
French (fr)
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EP3443571A1 (de
Inventor
Philipp FANGAUER
Peter Vincon
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
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ETO Magnetic GmbH
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Filing date
Publication date
Application filed by ETO Magnetic GmbH filed Critical ETO Magnetic GmbH
Publication of EP3443571A1 publication Critical patent/EP3443571A1/de
Application granted granted Critical
Publication of EP3443571B1 publication Critical patent/EP3443571B1/de
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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
    • H01F7/16—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
    • 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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1638—Armatures not entering the winding
    • H01F7/1646—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
    • 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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F2007/1692—Electromagnets or actuators with two coils

Definitions

  • the present invention relates to a currentless monostable electromagnetic actuator.
  • the present invention also relates to a use of such a currentless, monostable electromagnetic actuating device.
  • Electromagnetic actuating devices are to be assumed to be generally known from the prior art. For example, reveals the DE 201 14 466 U1 from the applicant a bistable electromagnetic actuator device as an adjusting device, which has an armature unit with permanent magnet means and a tappet unit which is elongated along a direction of movement and is seated on the armature unit. This permanent magnetic armature unit is driven by stationary electromagnetic drive means in the form of a stationary core unit to which a coil unit that can be suitably energized is assigned.
  • a compression spring can additionally be provided, which the armature unit in the direction of detachment from the core unit pretensioned.
  • the entire arrangement is enclosed by a magnetically conductive housing, which closes the magnetic circuit necessary for movement, and which in the extended armature position, ie released from the stationary core unit, in cooperation with the armature-side permanent magnet means, offers an opposing adhesive position so that the from the DE 201 14 466 U1 is a bistable device.
  • the tappet section forms an engagement or engagement section, which is particularly suitable for engaging in and on this adjustment groove when the armature is extended Way then to carry out the intended camshaft adjustment.
  • resetting (returning) the anchor unit including the tappet section into the pushed-in (pushed back) position on the core unit usually takes place through the action of the actuating or engagement partner, here specifically through a suitable design of the groove profile.
  • the applicant developed a bistable electromagnetic actuating device in which, in turn, an armature unit provided with permanent magnet means can be moved between two actuating positions in response to an energization of a stationary coil unit, with an engagement section being provided axially at both ends to interact with a suitably assigned unit as an actuating partner.
  • the permanent magnet means provided on the armature side ensure that the armature unit is kept stable at both ends, ie in the respective opposite end stop positions, in other words, the armature unit remains stable in the respective end stop position without renewed energization of the coil unit or without external interference.
  • the release or return to a respective opposite of the stop positions takes place by reversing the polarity of the current supply to the coil unit, so that the respective end or stop positions can also be reached in a controlled manner in this way.
  • the DE 10 2007 057882 A1 known, which comprises a first and a second coil unit having coil means for influencing the switching behavior of an armature unit adjustable along a longitudinal axis of movement.
  • the object of the present invention is therefore to create an electromagnetic actuating device which, in addition to favorable dynamic properties, in particular the rapid movement of an armature unit having permanent magnet means from a first (retracted) actuating position to a second (extended) actuating position, a calculable, in the currentless or in the de-energized case has predeterminable resetting behavior, in particular structurally simple and with little Hardware expenditure can be produced and can also be produced in an automated manner for large-scale production.
  • the coil means according to the invention firstly have a second coil unit provided in addition to the first coil unit, which according to the invention is wired or can be wired in such a way that this second coil unit when the armature unit moves from the first (typically not extended) setting position into the second (extended) setting position also has an accelerating effect on the armature unit.
  • the second coil unit also insulates with appropriate wiring
  • the extension ie moving the armature unit into the second setting position
  • this second position is reached.
  • corresponding energizing means connected or connected upstream of the first or second coil unit, to lower the flowing current compared to the movement and thus to ensure an extended (nevertheless energized) armature position with reduced electrical energy consumption.
  • the coil means have resetting coil means which are designed or wired in such a way that they have a reinforcing effect on the energy storage means when resetting, namely returning the armature unit from the second to the first setting position, i.e. an additional resetting force rectified to the energy storage means (e.g. the return spring).
  • the reset coil means according to the invention also advantageously make it possible that the resetting movement is not caused by the spring means must take place alone, but rather in an activated or energized state of the device a controlled, dynamic (ie rapid) return from the second to the first setting position can take place.
  • the present invention thus realizes in a surprisingly simple way a functionality which combines the dynamic advantages of a known bidirectional, nevertheless bistable actuating device with the need to bring about a currentless, stable, unambiguous actuating state without this adversely affecting the actuating, efficiency and dynamic properties of the invention .
  • the restoring force of the energy storage means is advantageously set up according to the invention (i.e., for example by suitable dimensioning of spring means to be provided for this), that it restoring force is greater than a permanent magnetic adhesive force of the permanent magnet means at the second setting position, this adhesive force for example in relation to a surrounding housing of the adjusting device (which is then otherwise known would allow an exit of the plunger section) would take place.
  • the reset coil means are advantageously implemented as an additional coil unit so that as a third coil unit to be provided in addition to the first and the second coil unit, which is further preferably provided in the area of the second actuating position or is thus placed electromagnetically in the predetermined or emerging flux circuits, that this additional coil unit as a resetting coil means can exert the desired resetting force (ie in the same direction as the resetting force of the energy storage means or superimposing it).
  • this additional coil unit axially adjacent to the second coil unit
  • axial in the context of the invention is understood to mean the direction of extension or movement of the armature unit including the typically elongated plunger section).
  • this additional coil unit would then also cooperate in the context of a coil magnetic flux with a stationary core section which, according to the invention, is assigned to the second coil unit and thus usually axially opposite a stop for the armature unit on the first that determines the first setting position or a stop for the armature unit Positioning position forming core unit is provided.
  • developments according to the invention provide different variants of the energy storage means according to the invention - which in the manner discussed above ensure the currentless, monostable return and thus the desired fail-safe behavior with regard to a predetermined setting position: on the one hand, it is within the scope of a preferred embodiment it is preferred to realize this energy storage means, typically as a compression spring, as a spring acting externally on the armature unit in the region of the engagement section.
  • this energy storage means typically as a compression spring, as a spring acting externally on the armature unit in the region of the engagement section.
  • Such a variant is particularly suitable for those exemplary embodiments in which the plunger end, in addition to interacting with the actuating partner, is also suitable or designed favorably for receiving a compression spring acting here or engaging the anchor unit.
  • this can also be done indirectly via deflection means, for example a rocker arm or similar mechanical units then applying a restoring force from spring means which do not act directly on the armature unit in the manner according to the patent.
  • a (resetting) compression spring can also be provided in a device housing itself and be provided, for example, in a suitable manner axially at a predetermined position of the armature unit or its tappet section.
  • the compression spring it could be useful and structurally elegant to design the compression spring as a spiral spring so that it surrounds the tappet section and is supported approximately axially at one end by the permanent magnet means armature section (which is usually widened compared to the tappet section).
  • the present invention enables the implementation of a monostable adjusting device that assumes a defined adjusting state in the de-energized state in a simple and elegant manner, which combines structural simplicity with favorable, advantageous adjusting properties in both adjusting directions, without any energy storage means that cause a return to adversely affect the behavior.
  • the present invention is therefore outstandingly suitable for a purpose in the area of setting an operating mode of a vehicle assembly such as a motorcycle transmission, although the present invention is not necessarily restricted to such a purpose.
  • FIG. 1 the longitudinal sectional view of the first embodiment of FIG Fig. 1 an armature unit 12 which can be moved along a longitudinal axis 10 and which has a permanent magnet disk 16 at a first end directed towards a first core unit 14, which is delimited axially at both ends by flux guide disks 18, 20.
  • This permanent magnet unit is followed by an elongated plunger section 22 of the armature unit, which extends along the axial direction in the center of a comprehensive cylindrical housing 24 up to a (in the Fig. 1
  • the open housing end shown on the bottom side, from which an engagement section 26 - designed to interact with an actuating partner provided here in a motorcycle transmission - is formed.
  • the first stationary core element 14 is enclosed by a first coil unit 28, which has a first winding 30 on a coil carrier 32 (implemented as a plastic injection-molded part, for example).
  • a coil carrier 32 implantemented as a plastic injection-molded part, for example.
  • the coil 30 repels the permanent magnet means 26 and thus along the axial direction in the drawing of FIG Fig. 1 downward force input forms.
  • the arrangement is configured in such a way that this repulsive effect (already) is sufficient to overcome the permanent magnetic adhesive force of the assembly 16 on the first core 14, so that this movement can take place.
  • this movement is additionally supported by a second coil unit 36, which has a second winding 38 wound on a plastic coil carrier 40.
  • This winding 38 supplied via the supply line arrangement 34, is also supplied with power in order to move the armature unit out of the (first) set position of the Fig.
  • the second core unit - circumferentially surrounding the plunger section 22 in the manner shown and thus offering a guide for it - together with the second coil 38 and an associated shell-side section of the housing 24 forms a magnetic flux circuit that realizes the described reinforcing actuating effect of the second coil unit.
  • a spring force or a force behavior of the spring 44 is set up so that the spring force at the second setting position (i.e. at the stop of the armature unit, not shown in the figures, or its permanent magnet means 16 on the second core 42) does not adhere or (permanently magnetically) adhere Adhesion to the core occurs, rather this permanent magnetic adhesive force is overcome by the above-described restoring force of the spring element 44.
  • FIG Figs. 1 to 3 a third coil unit 50, which in the illustrated embodiment is provided axially and in the direction of the first coil unit 28 adjacent to the second coil unit 36;
  • the coil carrier 54 carrying a third coil (winding) of the third coil unit is also designed to be modularly assembled, alternatively in one piece, with the coil carrier 40 of the second coil unit 36, so that these units are particularly suitable for compact and potentially automated production and assembly suitable.
  • the third coil 32 is wired or set up in such a way that during the described actuating process from the first (on the core 14) to the second (on the core 42) actuating position, the third coil remains de-energized, but then in a resetting operation - at de-energized state of the first and the second coil - the third coil exerts a restoring force on the armature unit in the direction of the first setting position, insofar as the restoring force of the restoring spring 44 is superimposed or reinforced.
  • the circuit diagram of the Fig. 2 illustrates such an interconnection; the switches 56 shown (for the arrangement of the first coil 30 and second coil 38) and 58 (for the third coil 52) are alternatively closed and thus determine the operating state for moving the when the switch 56 is closed and the switch 58 is open Armature unit from the first to the second set position, while the reversed switch state (switch 56 open and switch 58 closed) causes the third coil 52 to return to the first set position, supported by the spring return force of the spring unit 44.
  • this measure also makes the resetting process run dynamically and accelerated and thus enables monostability that depends on the possible adhesive behavior of the permanent magnet 16 is not adversely affected at the second armature, but rather this is compensated for by the coil 52.
  • the present invention is not limited to the exemplary embodiments shown; in particular, the design, arrangement and configuration of the individual coil units can be changed or varied in a suitable manner, as the present invention is not limited to the preferred use of a lock for a (motorcycle) transmission . Rather, the present invention is suitable for any application in which, with permanent magnetic armature functionality, dynamic actuating behavior in both axial actuating directions is to be combined with monostability in the de-energized state or a defined fail-safe reset position.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
EP17719166.5A 2016-04-13 2017-03-30 Stromlos monostabile elektromagnetische stellvorrichtung und verwendung einer solchen Active EP3443571B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016106805.5A DE102016106805A1 (de) 2016-04-13 2016-04-13 Stromlos monostabile elektromagnetische Stellvorrichtung und Verwendung einer solchen
PCT/EP2017/057619 WO2017178241A1 (de) 2016-04-13 2017-03-30 Stromlos monostabile elektromagnetische stellvorrichtung und verwendung einer solchen

Publications (2)

Publication Number Publication Date
EP3443571A1 EP3443571A1 (de) 2019-02-20
EP3443571B1 true EP3443571B1 (de) 2021-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17719166.5A Active EP3443571B1 (de) 2016-04-13 2017-03-30 Stromlos monostabile elektromagnetische stellvorrichtung und verwendung einer solchen

Country Status (5)

Country Link
US (1) US10832845B2 (zh)
EP (1) EP3443571B1 (zh)
CN (1) CN108885931B (zh)
DE (1) DE102016106805A1 (zh)
WO (1) WO2017178241A1 (zh)

Families Citing this family (4)

* 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
DE102018122699A1 (de) * 2018-04-18 2019-10-24 Eto Magnetic Gmbh Monostabile Aktuatorvorrichtung
CN109973649A (zh) * 2019-04-03 2019-07-05 杰锋汽车动力系统股份有限公司 一种用于变速箱的驻车解锁装置
CN111219485A (zh) * 2020-03-09 2020-06-02 杰锋汽车动力系统股份有限公司 一种驻车机构锁止装置

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CN1928370B (zh) * 2006-10-10 2013-06-19 张玉宝 一种磁阻式无杆比例电磁阀及其伺服控制方法
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Also Published As

Publication number Publication date
EP3443571A1 (de) 2019-02-20
US20190122798A1 (en) 2019-04-25
CN108885931B (zh) 2021-03-30
CN108885931A (zh) 2018-11-23
WO2017178241A1 (de) 2017-10-19
DE102016106805A1 (de) 2017-10-19
US10832845B2 (en) 2020-11-10

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