EP2491565A1 - Monostable electromagnetic actuator device - Google Patents
Monostable electromagnetic actuator deviceInfo
- Publication number
- EP2491565A1 EP2491565A1 EP10779222A EP10779222A EP2491565A1 EP 2491565 A1 EP2491565 A1 EP 2491565A1 EP 10779222 A EP10779222 A EP 10779222A EP 10779222 A EP10779222 A EP 10779222A EP 2491565 A1 EP2491565 A1 EP 2491565A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- unit
- housing
- permanent magnet
- tappet
- 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
- 230000005291 magnetic effect Effects 0.000 claims abstract description 33
- 230000004907 flux Effects 0.000 claims description 15
- 230000004044 response Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 12
- 238000009434 installation Methods 0.000 description 4
- 239000004071 soot Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
-
- 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
- H01F7/16—Rectilinearly-movable armatures
- H01F2007/1692—Electromagnets or actuators with two coils
Definitions
- the present invention relates to a monostable electromagnetic actuator device according to the preamble of the main claim.
- Such devices are generally known for realizing various actuating and switching functions, wherein in particular a valve control or camshaft adjustment has been realized with such an actuator device.
- CONFIRMATION COPY Characteristic drops sharply, so that a reliable sealing effect can not be guaranteed especially at high pressure tightness requirements.
- Object of the present invention is therefore to provide a monostable electromagnetic actuator device, in particular Heidelbergaktuatorvoriques for use in connection with a valve, according to the preamble of the main claim in terms of achievable magnetic force, simplicity of construction, a sealing effect under pressure and insensitivity to Robinson- and Improve installation tolerances, in particular to make such a generic device suitable for contaminated environmental conditions such as pollution and deposition by soot or oil.
- the armature unit is initially provided and designed such that it can be moved in response to the energization of the stationary coil device by means of magnetic repulsion from a first, normally-free stable stop position to a second, currentless unstable position.
- the design of the armature unit by means of a (typically disc-shaped) permanent magnet unit, further education provided with at least one adjacent pole disc that the anchor unit so that it can adhere stably in the first stop position on a core section provided there, with very high forces (typically 80 N or higher ) are achievable. This advantageously leads to even an extreme pressure load of the armature ensures a secure closing (in this first stop position).
- the armature tappet unit is formed in several parts in the axial direction, wherein a first anchor tappet portion (which is typically firmly attached to the permanent magnet portion of the armature unit) via a tension spring or the like on train loadable power storage is axially movably connected to the second armature tappet portion, and then the second one Kerstsammlungelabintroductory, end provided with a valve plate or the like sealing element, under tensile load and in the first stop position in a suitable manner makes the valve closure.
- connection of the second Ankerst thoroughlyelabites (corresponding to a lower valve member) and the first anchor tappet advantageously causes a clearance compensation between the plungers can be made, especially in this way axial offset, play or the like installation or manufacturing tolerances elegant and easy balanced be because both Ankerst thoroughlyelabroughe not exactly axially aligned.
- this configuration provides ideal conditions for use under wear conditions, as well as wear-related geometric changes, game or the like can be compensated or absorbed in this way simply by the energy storage as a connecting element between two plunger sections.
- the actuator device is now designed such that in response to the energization of the stationary coil device this exerts a repulsive magnetic effect on the permanent magnet means, with the effect that the adhesive force of the permanent magnet means in the first stop position (more precisely: at a provided there stationary pole section ) is lifted and, advantageously additionally, another, located axially in the direction of movement coil section of the coil device attractively cooperates with the permanent magnet means, with the effect that then the anchor with the armature tappet unit can move from the first stop position.
- connection between the armature tappet sections is advantageously designed for this operating state in such a way that the first armature tappet section exerts a (more preferably impulsive) axial thrust on the second armature tappet section, with the advantageous effect that such an impulse load of the second Ankerstsammlungelabsacrificings (or a valve end end sitting thereon or the like) even a bonded by soot or oil valve seat can be reliably opened.
- the monostable device realized according to the invention then leads to the effect that, during energization and due to the thrust action described along the armature plunger unit, a valve disk seated at the end on the second arm plunger portion opens a valve and keeps it open during the energization.
- the device according to the present invention (and also claimed independently) is designed to effectively prevent sticking of the permanent magnet means of the armature unit in this second (opening) position, such as permanent magnetic adhesion to a yoke portion opposite the pole portion or the like by suitable design the permanent magnetic flux guide is suppressed.
- This then leads to a (purely permanent magnetic) adhesion in the second position is prevented after completion of the energization, but rather by permanent magnetic attraction effect relative to the pole portion a return to the first starting position and thus monostable movement behavior is achieved.
- a housing involved in flux conduction of the magnetic flux guide is formed in several parts, in particular by means of a radially provided slot between the axially distributed single coil units, so that in the second position no permanent magnetic holding flux is established , Rather, the flux guide is formed in this position so that the permanent magnetic field via a permanent magnet circuit in the direction of the pole portion, ie in the direction of the first stop position is closed, so that after completion of energization then the permanent magnet means by attraction the anchor unit in return the first stop position.
- the present invention is particularly suitable for the described application of, for example, a secondary air valve, in which a high closing or sealing force must be ensured with a high magnetic force over a longer portion of the force-displacement curve
- the present invention is not on this use limited, but is suitable in principle for any (electromagnetic) Stellaufgabe, even outside a valve operation, in which high actuating and closing forces, especially in conjunction with favorable tolerance compensation, must be realized.
- FIG. 1 shows a schematic longitudinal sectional view of a monostable electromagnetic actuator device according to a first embodiment, in the first, normally-free stable stop position according to the invention for closing the valve;
- Fig. 2 a view of the embodiment of Fig. 1, but with in the second
- FIG. 3 shows a detailed view of the transition region between the pair of armature plunger sections of FIG. 1 and FIG. 2 with a tension spring provided in this transitional region for connecting these sections;
- Fig. 4-8 a sequence of the various movements of the anchor unit or the
- Valve disc in response to energization or non-energization with it clarified magnetic flux in the housing or in the armature unit with permanent magnet.
- FIG. 1 to 3 illustrate the structural design of the present invention according to a first preferred embodiment:
- An anchor unit consisting of an elongated first armature tappet portion 10, an attached disc sequence of permanent magnet disc 12 and this both sides associated pair of pole discs 14, 16 is axially continued with a second armature tappet portion 18, wherein the armature tappet portions 10, 18 along the axial direction (vertical direction of FIG. 1) relative to each other movable and connected to train connected by a tension spring 20 as an energy storage, which respective annular shoulders 22 and 24 of the anchor tappet portions 10 and 18 overlaps.
- the armature unit sits by permanent magnetic attraction (see Fig. 4 with the armature descriptive arrow 30) in a first normally-free stable and upper stop position on a stationary yoke unit 26, which, with other flux-conducting and housing elements 28, 32, a stationary coil unit 34 enclosing housing forms.
- FIG. 1 illustrates the permanent magnetic flux passing through the core section 26 or the housing sections 28, 32, FIG. 4 describing the currentless state of the coil unit 34.
- FIG. 1 (or FIG. 4) describes a stable locking state, which in practice can absorb a force of up to 80 N.
- FIG. 7 then illustrates, with respect to the open end position (second position) of FIG. 6, the beginning of the backward movement of the armature unit back into the starting situation (FIG. 4) with currentless coil units.
- the armature unit in the de-energized state in turn closes the valve, the (strong) permanent magnet effect in conjunction with the tolerance-compensating action of the tension spring 20 causing a harmonious, safe closing of the valve.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200920014192 DE202009014192U1 (en) | 2009-10-20 | 2009-10-20 | Monostable electromagnetic actuator device |
PCT/EP2010/006282 WO2011047801A1 (en) | 2009-10-20 | 2010-10-14 | Monostable electromagnetic actuator device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2491565A1 true EP2491565A1 (en) | 2012-08-29 |
EP2491565B1 EP2491565B1 (en) | 2015-07-29 |
Family
ID=43587147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10779222.8A Active EP2491565B1 (en) | 2009-10-20 | 2010-10-14 | Monostable electromagnetic actuator device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2491565B1 (en) |
DE (1) | DE202009014192U1 (en) |
WO (1) | WO2011047801A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT510941B1 (en) * | 2011-09-05 | 2012-07-15 | Seh Ltd | MAGNETIC DEVICE |
EP3005540A1 (en) * | 2013-08-26 | 2016-04-13 | Halliburton Energy Services, Inc. | Variable reluctance transducers |
DE102016106805A1 (en) * | 2016-04-13 | 2017-10-19 | Eto Magnetic Gmbh | Electroless monostable electromagnetic actuator and use of such |
DE102018122699A1 (en) * | 2018-04-18 | 2019-10-24 | Eto Magnetic Gmbh | Monostable actuator device |
DE102019104882A1 (en) * | 2019-02-26 | 2020-08-27 | Eto Magnetic Gmbh | Actuator device and method for operating an actuator device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19712293A1 (en) * | 1997-03-24 | 1998-10-01 | Binder Magnete | Electromagnetic actuator |
DE10146899A1 (en) * | 2001-09-24 | 2003-04-10 | Abb Patent Gmbh | Electromagnetic actuator, in particular electromagnetic drive for a switching device |
DE10207828B4 (en) * | 2002-02-25 | 2004-10-07 | Technische Universität Dresden | Electromagnetic solenoid |
-
2009
- 2009-10-20 DE DE200920014192 patent/DE202009014192U1/en not_active Expired - Lifetime
-
2010
- 2010-10-14 EP EP10779222.8A patent/EP2491565B1/en active Active
- 2010-10-14 WO PCT/EP2010/006282 patent/WO2011047801A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011047801A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2491565B1 (en) | 2015-07-29 |
WO2011047801A1 (en) | 2011-04-28 |
DE202009014192U1 (en) | 2011-03-03 |
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