EP2686854A1 - Elektromagnetische aktuatorvorrichtung - Google Patents
Elektromagnetische aktuatorvorrichtungInfo
- Publication number
- EP2686854A1 EP2686854A1 EP12714978.9A EP12714978A EP2686854A1 EP 2686854 A1 EP2686854 A1 EP 2686854A1 EP 12714978 A EP12714978 A EP 12714978A EP 2686854 A1 EP2686854 A1 EP 2686854A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- permanent magnet
- unit
- yoke
- flux
- coil
- 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
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
- H01F7/121—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
Definitions
- the present invention relates to an electromagnetic actuator device according to the main claim and to the independent claim 12.
- a (typically cross-sectionally cylindrical) coil unit is provided on a stationary yoke unit so that it encloses a first yoke portion of the yoke unit and, when energized, introduces a magnetic flux into the yoke unit.
- this coil magnetic flux then acts together with the anchor means, which in turn carry out the desired actuator or adjusting movement for an output-side adjusting partner.
- the coil unit with the associated first yoke portion spaced from the air gap forming the second yoke portion provide, i. to provide the air gap completely outside the first yoke section.
- Both genus-forming principles each have certain advantages, such as the first-mentioned approach by activating (energizing) the coil unit allows a targeted flow control in the formed by the yoke unit, typically having a plurality of branches magnetic flux circuit.
- the coil efficiency of the coil unit is not optimal, also have such approaches the outsourced coil the problem possible, acting on the armature unit transverse forces by the Spulenmagnet- flow, ie forces (or force components), which do not extend (only) along the linear armature movement direction, but additionally cause a tendency to tilt and thus promote wear, which in particular a suitability of such devices lowers for a wear-resistant continuous operation.
- the generic principle of the coil unit enclosed or sheathed armature unit is less affected by such shear forces, however, about, the possibilities, additional magnetic flux in the anchor unit (via the working air gap) are limited, and are primarily determined by the coil dimensions, by design. This in turn then disadvantages in terms of utilization of and / or adaptation to available space, possible thermal or winding losses or the like disadvantages.
- the enclosing of the valve-effective anchor unit by means of the coil unit offers the problem of limited supply and discharge possibilities for a respective, to be influenced by the valve fluid.
- the object of the present invention is therefore to improve an electromagnetic actuator device according to the preamble of the main claim or the independent claim 12 in view of a flexibilization of the magnetic flux in the stationary yoke unit, in particular to provide the possibility of such an electromagnetic actuator device (potentially under simultaneous efficiency optimization) to adapt to space limitations and / or to minimize possible wear.
- permanent magnet means are magnetically connected in parallel with the coil unit so that an (additional) permanent magnet flux of the permanent magnet means can be passed through the first yoke section (on the coil unit) insofar, at least when the coil unit is deactivated magnetic short circuit of the permanent magnet means takes place.
- a coil magnet flux flowing through the (preferably single) air gap of the coil unit is magnetically parallel and / or rectified superimposed with a permanent magnet flux flowing through the air gap, insofar as the permanent magnet flux (or flux) is energized at least when the coil unit is energized At least one component thereof) flows over the air gap, so that, in the case of such activation of the coil unit by energization, an at least partial magnetic flux shift of the permanent magnet flux from the first yoke portion (namely the continuous, air gap-free portion of the coil unit), in the with the (Arbeits -) air gap cooperating second yoke portion flows and according to this flux displacement or flux displacement leads to an influence on the control or switching behavior of the cooperating with the air gap armature unit.
- the present invention according to the first aspect of the invention has the advantageous effect that, in response to the energization of the coil unit, the coil magnetic flux generated thereby effects the displacement or displacement of the permanent magnet flux of the permanent magnet means.
- the coil magnetic flux generated by the coil gets the character of an opposing field to the permanent magnet and so far the permanent magnet flux efficient, potentially influence (flux to the coil magnetic flux), in the simplest case with respect to a respective branch on or off.
- This effect according to the invention appears to be particularly interesting and practically useful if, as an alternative to a permanent energization of the coil unit, this activation takes place in a pulse-shaped manner such as continuing education. is provided according to, and then in response to this pulse-shaped activation (and already caused thereby displacement or reaction of the movement units involved of the actuator device) a mono- or bistable switching behavior is achieved. This is the case, for example, when, in response to the pulse-shaped energizing of the coil unit, an armature movement (which then displaces at least part of the permanent magnet flux into the air gap and thus increases the armature force) results in a closing of the air gap.
- the anchor means a return device, such as in the form of a pressure or return spring assigned, against which the armature operates in the manner described above, can be by suitably setting about the spring force, the movement and / or switching behavior of the anchor unit influence further, such as deviating monostable design, in which case, after completion of the Bestromungsim- pulse, a sufficiently large-sized (spring) restoring force the armature unit against the force of the permanent magnet flux spends back to an initial position.
- a return device such as in the form of a pressure or return spring assigned, against which the armature operates in the manner described above, can be by suitably setting about the spring force, the movement and / or switching behavior of the anchor unit influence further, such as deviating monostable design, in which case, after completion of the Bestromungsim- pulse, a sufficiently large-sized (spring) restoring force the armature unit against the force of the permanent magnet flux spends back to an initial position.
- the permanent magnet means in the form of a single (preferably elongated and axially magnetized along the direction of extent) magnetic element, as well as to insert a plurality of such permanent magnet elements, which then engage suitable positions, in particular also at one opposite, with respect to the air gap and / or the coil unit, are provided, it is equally covered by the present invention to provide the anchor means in the form of a plurality suitably also independently guided or mounted anchor units, in which case the second yoke section according to the invention realizes correspondingly a plurality of areas or sections of the yoke unit.
- an axial extension direction (again corresponding to a magnetization direction) of the permanent magnet means approximately parallel to a linear direction of movement of the (at least one) armature unit, again
- an extension direction of the first yoke section (surrounded by the coil unit) parallel to these axes (or one of these) again and further development according to the coil unit with a coil axis or coil longitudinal axis so that an armature movement direction is parallel to the coil longitudinal axis.
- this also makes it possible, in particular, to optimize the transverse force problem described above for the anchor means, namely by balancing respective (operational) magnetic flux components of the coil unit on the one hand and the permanent magnet flux components of the permanent magnet elements on the other can be brought that the adverse effects of lateral forces on the anchor means (a single anchor unit, potentially further training a plurality of anchor units) are minimized.
- the respective flux-generating or magnetic flux reacting components by means of Flußleit- elements, more preferably at both ends to form a magnetic parallel circuit or a flux-conducting arrangement comprising at least two flux guide circuits to connect, wherein it has been found to be particularly preferred constructively and magnetically, such flux guide elements (which may be realized in particular as sections of the yoke unit, for example, one-piece, alternatively modular-like from predetermined assemblies), so provide that they perpendicular to a (linear) movement direction of the at least one anchor unit or perpendicular to a direction of magnetization of the at least one permanent magnet unit or rechtwin kelig to a longitudinal direction of the first yoke portion (thus perpendicular to an extension direction of the coil unit) extend.
- Such a flux-conducting element which can furthermore preferably be provided at both ends of the mentioned magnetic components, can be configured as a flat module (for example as a plate) and / or can use a design which has at least one flat side, so that it can be conveniently used.
- otherwise known magnetically flux-conducting sheets (which in turn can be conveniently stamped production technology and thus enable mass production suitability) stacked suitably suitable for the realization of the various sections of the yoke unit can be used.
- pairs of coil units / permanent magnet units would then be suitable for aligning relative to the anchor means, suitably arcuately and / or circularly around the anchor means, again suitable and further preferably magnetically coupled via one or both attacking flux guides.
- permanent magnet means according to the invention are used to influence the magnetic flux and behavior of an electromagnetic actuator device in which the coil unit at least partially surrounds the working air gap and / or the anchor means, ie no laterally outsourced arrangement as in the first aspect of the invention.
- the coil unit is provided with a flux-conducting section of the yoke unit outside the first yoke section, for the purpose of forming at least one air-gap-free flux branch.
- Permanentmag- In the context of this aspect of the invention, net means are connected magnetically parallel to the coil unit in such a way that in a de-energized state of the coil unit a permanent magnet flux of the permanent magnet means is guided via this flux-conducting section, so that the flux-conducting section acts as a magnetic short circuit for the permanent magnet means insofar as the coil unit is not activated becomes.
- activation of the coil unit by the energization then effects an at least partial magnetic flux shift, in particular magnetic flux displacement, of the permanent magnet flux from the flux-conducting section of the yoke unit into the first yoke section (and thus across the air gap), with the result that then the anchor force is affected.
- this aspect of the invention advantageously also makes it possible for a permanent magnet flux, which is additionally flux-conductively coupled into the system, to be influenced in response to an activation of the coil unit, in particular switched on or off, in particular with respect to the first yoke section and the armature unit.
- the possibilities discussed at the outset apply geometrically to designing the respective magnetically active sections in one or more parts, wherein, for example, a preferred embodiment of the invention provides that the flux-conducting section (for guiding the permanent magnet flux in the currentless state of the coil unit) at least two mutually magnetically parallel Flußleit- branches forms, which may be preferably provided on the shell side adjacent the coil side, further preferably each other, based on the coil device, facing each other.
- the flux-conducting section is designed as a section or region of a flux-conducting housing (in particular housing shell) of the actuator device, wherein this housing shell surrounds the coil unit on the shell side according to the development and the permeability nentmagnetsch either on or in the housing shell to achieve the described flux guide are provided; It is particularly advantageous if, for example, a magnetization direction of the permanent magnet means is parallel to a direction of movement of the armature means, so that in this case, in a typical sleeve or cylindrical housing, a direction of extension and magnetization direction of the permanent magnet means also parallel to an axial direction Sleeve or of the cylinder runs.
- the permanent magnet means in turn further education in the described relative orientation, are placed outside on a (closed) housing portion of the housing shell, so that in that case then the lateral (short-circuit) magnetic flux can flow in the currentless state of the coil unit ; an alternative embodiment could provide that the (elongated) permanent magnet means in a suitably sized and end-flow-coupled coupling (slot or opening) of the housing shell are provided.
- the possibilities provided for further development are to connect the permanent magnet means and the first yoke section (with the coil unit) via flux guide regions or flux guide elements which extend at right angles to the respective directions of extension, these flux guide elements, in turn, being flat as a component of the yoke unit and / or can be realized by means of individual sheets or sheet stacks suitable for mass production.
- the result of the present invention in both aspects of the invention is a surprisingly high-performance, highly flexible system of coil unit, anchoring means and permanent magnet unit, which combines the possibility of optimized mechanical arrangement and / or space utilization with magnetic flux optimization for assembly dimensioning, loss minimization (related approximately to the coil unit ) and preventing Desired possible transverse forces related to the anchor unit, so that so far, a wear optimization is possible.
- Fig. 6, 7 a variant for the realization of Figure 1 and divergent leadership of the permanent magnet flux.
- FIG. 15 shows a concrete, perspectively shown and constructional-mechanical realization of the first aspect of the invention with an arrangement of a coil unit and a pair of permanent magnets, which are connected on both sides by flat flux-guiding means;
- FIGS. 13 to 15 a schematic topography representation of a construction variant to FIGS. 13 to 15 with two paired spools len permanent magnet pairs, both sides adjacent to the armature unit;
- FIG. 21 further arrangements with coil permanent magnet pairs in a circular-circumferential assignment to a central armature unit;
- FIGS. 22, 23 asymmetrical variants in the assignment of permanent magnets and coil analogous to the configurations of FIGS. 18 to 21;
- FIGS. 24, 25 are schematic illustrations for illustrating the second aspect of the invention with the coil unit or the air gap surrounding the coil device;
- the apparatus shown schematically in FIG. 1 and analogous to the functional components in FIG. 2 has an electromagnetic actuator device, which armature means 10, axially (ie upward in the respective plane of the figure) movable to a yoke section 12 (second yoke section in the sense of Invention) movably guided.
- armature means 10 axially (ie upward in the respective plane of the figure) movable to a yoke section 12 (second yoke section in the sense of Invention) movably guided.
- a (preferably single) corresponding to a distance between the armature and yoke variable air gap 14 is formed, over which, as a working air gap, a magnetic flux is guided so far as to make a force on the anchor unit 10 for driving the same.
- the yoke section 12 is part of a (stationary, ie immovably held or fixed) yoke unit, essentially consisting of a yoke section 18 (first yoke section in the sense of the invention, also referred to as a coil core) assigned to a coil 16 provided in an adjacent branch. Furthermore, a permanent magnet unit 20 is held in an opposite branch of the yoke unit 18, wherein flux conducting sections 22, 24, in the illustrated example on both sides of the permanent magnet unit 20 and on both sides of the coil unit 16 (or of the associated yoke section) connect the flux-conducting components, in the illustrated embodiment approximately in the center cause a magnetic flux connection to the yoke portion 12 and, as indicated in Figs.
- an opening 26 for passing the anchor unit 10 (and so far for introducing a magnetic flux in the armature unit for the air gap 14 and the yoke 10) offer.
- the stationary yoke unit are to achieve a compact arrangement, the respective longitudinal or movement axes of the components involved adjacent to each other and aligned in parallel: A coil longitudinal axis, defined by the extension direction of the yoke portion 18, parallel to the extension direction (and magnetization direction) of the elongated permanent magnet element 20, parallel to this, an extension direction and direction of movement of the armature unit 10.
- FIG. 3 illustrates a flow profile in the arrangement shown only schematically in FIGS. 1 and 2 in the de-energized state of the coil unit 16, wherein the arrowhead 28 merely illustrates the (permanent) magnetic flux produced by the permanent magnet unit 20. Since the air gap 14 is opened in the arrangement of FIGS. 1 to 4, so far as the yoke section 18 offers an increased magnetic flux resistance, as shown by arrow arrangement 28 in Fig. 3 illustrates virtually the entire permanent magnet flux in this anchor position state over the Jochab mustard 18, so that so far a magnetic short circuit of the permanent magnet unit 20 via the first yoke portion 18 (core portion) of the coil unit 16 takes place. If, as shown in FIG.
- the coil 16 is energized, a coil magnetic field is produced, which causes the coil magnet flux shown on the basis of the arrow 30 to be clear.
- the coil unit is polarized such that a magnetic flux flowing in the yoke section 18 is directed opposite the direction of the permanent magnet (in section 18) so that not only the (further) entry of the permanent magnet flux 28 into the yoke section 18 is prevented by the action of the coil magnetic flux 30, but rather This permanent magnet flux (also illustrated in FIG. 4 by the reference numeral 28 as an arrowhead) is displaced into the armature unit 10 or the second yoke section 12.
- the permanent magnet unit 20 opposes the coil magnet flux 30 with greater resistance than the sequence of armature unit 10, air gap 14 and yoke section (stator) 12, the coil magnet flux 30, insofar as this magnetic flux circuit is closed, is also displaced into this central arm.
- both the coil magnetic flux 30 and the permanent magnet flux 28, as shown in FIG thus, caused by energizing the coil unit 16 that a common, superimposed and added magnetic flux acts on the armature unit and drives it (for closing the air gap 14).
- Figures 6, 7 reverses the arrangement of branches adjacent to the permanent magnet means; here, the yoke portion 18 associated with the coil unit is provided for forming a magnetic flux circuit (in the manner of a short circuit) axially adjacent to the permanent magnet unit 20; the yoke section 18 then adjacent to the axially aligned and movable arrangement of stationary yoke section 12 and axially movable armature unit 10th
- a permanent magnet flux 34 flows through the yoke section 18, so far leaving the armature and yoke section 12 together with the air gap 14 outside the flow path.
- Activation of the coil unit 16 then causes, analogously to the above-described embodiment, adding or superimposing permanent and coil magnetic flux in the air gap branch, thus moves the armature unit to close the air gap, so that, after renewed deactivation of the coil unit, the bistable situation of Fig. 7 is formed.
- the branch formed from the yoke section 12 and armature unit 10 has a reduced magnetic resistance compared to the open air gap of FIG. 6, a permanent magnet flux component 35 also flows through this branch, dividing the permanent magnet flux of the permanent magnet 20 in this respect. Nevertheless, a relatively larger, significant flow component still flows through the yoke section 18.
- FIGS. 8 to 10 illustrates a variant of the invention in which a permanent magnet unit is operated with a plurality of armature units cooperating with a stationary yoke section via a respective working air gap.
- the armature units 40 and 42 provided on both sides of the yoke unit 18 and the associated coil unit 16 with associated air gaps 44 and 46 to stationary yoke sections 48 and 50, the magnetic flux branches thus formed so that, for example by a shorter gap distance 46 with respect to the gap distance 44, the branch 42, 46, 50 opposite the branch 40, 44, 48 has a lower magnetic resistance, so that although in the deactivated state of Fig.
- both Anchor branches remain flowless, each but then the energizing of the coil 16, analogous to the above-described effect, the displacement and flux concentration of both the permanent magnet flux 52, as well as caused by the coil activation Spulenmagnet Weges 54 primarily via the right armature arm takes place, thus over the shorter air gap 46.
- FIGS. 8 to 10 demonstrates how a sequence of a drive of the respective anchor units can be established or achieved by suitably designing respective flow guide circuits or flow control branches, for example by suitable cross-sectional dimensioning of the flow-conducting yoke sections and / or configuration of the air gaps described embodiment such that the armature unit 42 is moved first and only then the armature unit 40th
- FIGS. 11, 12 supplements the variant of FIGS. 8 to 10 by a second permanent magnet unit 21 which, according to the principle illustration, is provided opposite the permanent magnet unit 21 at the other end, first generates its own permanent magnet flux 58 and, as compared to FIG 10 and 11, in response to the closing of the air gap 46 (or saturation thereafter in the associated flow-conducting components 42, 50) of this permanent magnet flux 58, together with a component of the coil magnetic flux 56 (analogous to FIG. 10) is superimposed with respect to the working air gap 44 insofar, in the sense of the invention principle, a switched flux amplification and thus influencing effected.
- a second permanent magnet unit 21 which, according to the principle illustration, is provided opposite the permanent magnet unit 21 at the other end, first generates its own permanent magnet flux 58 and, as compared to FIG 10 and 11, in response to the closing of the air gap 46 (or saturation thereafter in the associated flow-conducting components 42, 50) of this permanent magnet flux 58, together with a component of the coil magnetic flux
- Figs. 13 to 15 describe another embodiment of the present invention.
- the perspective view such as just the yoke sections 22, 24 (as the end connecting the respective components involved sections) suitably from a stack of typically punched transformer plates or the like. can be realized and so combine the otherwise known favorable eddy current reduction effects with advantageous Flußleitmaschine and good suitability for a preferred mass production suitable production.
- FIGS. 13 to 15 also illustrate how, by suitably positioning the coil unit or a pair of permanent magnets relative to the movable armature unit, potentially disadvantageous gravitational components on the armature unit can be reduced (as is typically the case with laterally displaced coil-armature combinations) would be expected and can lead to wear or reduction in service life).
- FIGS. 13 to 15 show the pure permanent magnet flux
- FIG. 15 illustrates the superposed permanent and coil magnetic flux
- FIG. 14 shows the pure permanent magnet flux
- FIG. 15 illustrates the superposed permanent and coil magnetic flux
- FIG. 15 shows how along the flux guide stack 22 and 24, respectively, a permanent magnet short-circuit flux (FIG ) takes place outside of the working air gap, while, as illustrated in Fig. 15, by a two- or all-side flow entry in the direction of the anchor unit 10 (which with a hidden in the figures shown stationary yoke under Forming the working air gap cooperates), as a balance or a balance of the aligned in the plane of the respective flux guide elements 22 and 24 force components, based on an axial direction of movement of the armature unit, takes place.
- FIGS. 16 to 23 illustrate, as by an arrangement of respective permanent magnets (in plurality) with suitable, for example in pairs, associated coil units (including one yoke portion associated with a coil for short-circuiting the associated permanent magnetic flux in the de-energized state of the respective coil ), numerous configuration and adaptation options exist on a particular embodiment and provide for a transverse force minimization in virtually all coils.
- FIG. 16 the schematic plan view of an arrangement according to FIG. 16, FIG. 17 (in which both sides of a central armature unit 60 respectively a coil permanent magnet pair consisting of a permanent magnet rod 62 or 64 and an associated coil unit 66 or 68, in each case again consisting of a yoke portion and associated winding, as in the currentless in Fig.
- the present invention is not limited to the orders shown, nor numbers (2 or 3) of permanent magnet and coil pairs; Rather, this system can be arbitrarily adapted and duplicated or multiplied, in particular, the number of respective coil units (with associated yoke section) does not have to match the number of permanent magnets, such as the variants of Figs. 22 and 23 illustrate.
- an elongated, axially magnetized permanent magnet unit 20 is provided on both sides and at both ends connected by flux-conducting sections 20, respectively, and a yoke section adjacent to each other at the other end and directly adjacent to the coil 80 and 82.
- a yoke section 80 and 82 which are realized in the manner to be described below by a suitable housing of the electromagnetic actuator
- armature unit 10 acting as a stator yoke section 12th and provided therebetween air gap 14 is provided.
- a permanent magnet flux 84 runs in accordance with the arrows shown, namely in the center of gravity through the proximal yoke section 82 and, with a reduced flux component (further away and insofar with somewhat higher magnetic resistance) through the distal yoke section 80th
- FIG. 26 shows a first constructional embodiment in an axially partially cutaway state
- FIG. 27 shows the permanent magnet flux in this arrangement
- FIG. 28 shows a resulting magnetic flux curve with additional energization 26:
- the housing is realized like a bow, such that an external permanent magnet 20 (a double-sided attacking pair 20, 21) is connected via the flux conducting sections 22, 24 to the yoke sections 80 or 82, which are realized in the illustrated embodiment, portions of the housing.
- the reference numerals selected in FIGS. 26 to 31 correspond to those of FIGS. 24 and 25. It is shown that when the coil unit (FIG.
- FIGS. 29 to 31 shows how the permanent magnet 20, instead of being placed on the cylindrical actuator housing from outside via a bracket arrangement, is inserted in a longitudinal slot 90 of this housing, in which case for realizing the permanent-magnetic short-circuit function in the non-energized state (FIG. 30), the permanent magnet flux runs over the slot adjacent housing sections, while in the energized state of the coil unit and as shown in FIG. 31, here again then the flux displacement and superposition with the coil magnetic flux he follows.
- the described second aspect of the invention has the advantage that the housing (or any externally ansitzende, flux-conducting bracket) can be realized comparatively thin;
- the displacement of the permanent magnetic field alone already produces a relatively high magnetic flux above the working air gap, so that the overall magnetic flux in large parts of the housing can be small and correspondingly allows only small magnetically effective flow cross sections.
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102011014192.8A DE102011014192B4 (de) | 2011-03-16 | 2011-03-16 | Elektromagnetische Aktuatorvorrichtung |
PCT/EP2012/054544 WO2012123537A1 (de) | 2011-03-16 | 2012-03-15 | Elektromagnetische aktuatorvorrichtung |
Publications (2)
Publication Number | Publication Date |
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EP2686854A1 true EP2686854A1 (de) | 2014-01-22 |
EP2686854B1 EP2686854B1 (de) | 2015-05-06 |
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EP20120714978 Active EP2686854B1 (de) | 2011-03-16 | 2012-03-15 | Elektromagnetische aktuatorvorrichtung |
Country Status (5)
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US (1) | US9214267B2 (de) |
EP (1) | EP2686854B1 (de) |
CN (1) | CN103430251B (de) |
DE (1) | DE102011014192B4 (de) |
WO (1) | WO2012123537A1 (de) |
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DE102013013585B4 (de) | 2013-06-20 | 2020-09-17 | Rhefor Gbr | Selbsthaltemagnet mit besonders kleiner elektrischer Auslöseleistung |
DE102017111642A1 (de) * | 2017-05-29 | 2017-08-10 | Eto Magnetic Gmbh | Kleingerätevorrichtung |
CN107578940B (zh) * | 2017-09-13 | 2020-11-24 | 梁聪成 | 一种自发电开关 |
US10855158B2 (en) * | 2018-04-19 | 2020-12-01 | Watasensor, Inc. | Magnetic power generation |
CN110379611A (zh) * | 2019-06-26 | 2019-10-25 | 东南大学 | 一种具有永磁偏置的直流电流控制电感调谐装置 |
CN111313648B (zh) * | 2020-04-26 | 2024-04-09 | 山东理工大学 | 一种基于簧片阀散热的电磁直线执行器 |
CN117116597B (zh) * | 2023-09-11 | 2024-09-03 | 之江实验室 | 电磁致动器、电磁阀和触觉显示模块 |
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2011
- 2011-03-16 DE DE102011014192.8A patent/DE102011014192B4/de active Active
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2012
- 2012-03-15 WO PCT/EP2012/054544 patent/WO2012123537A1/de active Application Filing
- 2012-03-15 EP EP20120714978 patent/EP2686854B1/de active Active
- 2012-03-15 CN CN201280013561.4A patent/CN103430251B/zh active Active
- 2012-03-15 US US14/003,927 patent/US9214267B2/en active Active
Non-Patent Citations (1)
Title |
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See references of WO2012123537A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20140002218A1 (en) | 2014-01-02 |
WO2012123537A1 (de) | 2012-09-20 |
CN103430251B (zh) | 2017-02-08 |
DE102011014192A1 (de) | 2012-09-20 |
US9214267B2 (en) | 2015-12-15 |
DE102011014192B4 (de) | 2014-03-06 |
EP2686854B1 (de) | 2015-05-06 |
CN103430251A (zh) | 2013-12-04 |
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