EP2257954A1 - Electromagnetic actuator - Google Patents
Electromagnetic actuatorInfo
- Publication number
- EP2257954A1 EP2257954A1 EP09767941A EP09767941A EP2257954A1 EP 2257954 A1 EP2257954 A1 EP 2257954A1 EP 09767941 A EP09767941 A EP 09767941A EP 09767941 A EP09767941 A EP 09767941A EP 2257954 A1 EP2257954 A1 EP 2257954A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- anchor
- core
- movable
- section
- 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
- 230000004044 response Effects 0.000 claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims 1
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007704 transition 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
- H01F7/13—Electromagnets; Actuators including electromagnets with armatures characterised by pulling-force characteristics
-
- 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
Definitions
- the present invention relates to an electromagnetic actuator according to the preamble of the main claim.
- So-called flat anchor systems usually allow large forces, but have the disadvantage of comparatively short usable anchor strokes.
- the object of the present invention is therefore to improve an electromagnetic actuator according to the preamble of the main claim, both with regard to a force and dynamic behavior immediately after the current, and to increase an effective stroke.
- the core unit in the axial direction of multi-part namely a stationary core section axially movable core so assign that between these sections a core gap, which is part of the magnetic circuit and for additional power generation immediately after the energization can contribute.
- the movable core portion and the armature are connected by means of the entrainment means according to the invention, that in response to the energization and thereby causing closing of the core gap, the movable core portion exerts a force acting in the axial direction driving force on the armature and so dynamic behavior and force development directly optimized after the energization (more precisely: after the beginning of the energization); as soon as the core gap is closed, the armature moves in an otherwise known manner in the manner of a feeder anchor further in the axial direction.
- This procedure thus has the advantageous effect that in the critical phase for the response and the dynamics immediately after the energization (more precisely: the activation the energization) a high force acts on the armature, which drives it in the axial direction, this force is on the one hand in the generically known manner by magnetic field flux between anchor and core unit effected, but in particular also receives a support by the between the movable and The core gap formed in the stationary core section, which exerts the advantageous application of force on the armature during closure caused by the energizing.
- the entrainment means on the armature tappet section (reduced in diameter relative to a broader armature body section), more preferably in a transition or passage region of the armature tappet section through a further, preferably cup-shaped, movable core section.
- the anchor tappet portion with a (one or more pieces)
- a driver-partner such as the movable core portion, entrainment
- a conical or other geometric design of this driver section seems possible and useful.
- the constructive realization of the electromagnetic see adjusting adjusting device to almost any purpose and appropriate constructive further, such as in the form of a stroke-limiting guidance of the armature by means of an armature guide tube. It is also encompassed by the invention to transmit or supplement the idea of the invention of a split and partially movable core for power assistance by a correspondingly configured yoke section, which likewise promotes an armature movement or enables a force application of the armature.
- FIG. 1 shows a schematic longitudinal section through an electromagnetic actuator according to a first preferred embodiment of the present invention
- FIG. 2 shows a representation analogous to FIG. 1 for clarifying the magnetic flux of force during the energization (after the beginning of the energization);
- FIG. 3 shows a detail view to illustrate the mechanical power transmission between the armature and the two-part core unit with this connecting entrainment means.
- FIG. 5 two schematic diagrams for further variants for forming the geometry of the driving means by means of Koni (FIG. 4) or multi-stage annular shoulders (FIG. 5);
- FIG. 6 shows a force / path diagram to illustrate the strong force increase achieved by the invention during the response or immediately after the current application
- FIGS. 7-11 a sequence of five temporally successive states of motion after the device has been energized according to FIGS. 1 to 3;
- FIGS. 12-14 a representation analogous to FIGS. 7 to 11 for clarifying the mode of operation and structural realization of a second embodiment of the present invention
- FIG. 17 shows a representation analogous to FIGS. 7 to 11 for clarifying the structural realization and mode of operation of a third embodiment of the present invention
- FIG. 20 a representation analogous to FIGS. 7 to 11 for clarifying the structural realization and mode of operation of a fourth embodiment of the present invention.
- a stationary coil unit 16 is provided inside a housing formed by a yoke-side housing plate 10, a core-side housing plate 12 and a cylindrical housing jacket 14. which is connected in not shown and in a known manner for energization.
- the device further has a two-part core unit consisting of a stationary core portion 18 and a core unit 22 movable in the axial direction (dashed line 20). Passing through the core unit 18, 22 is an armature tappet portion 24 which is widened in diameter in the axial direction Anchor body portion 26 extends.
- Anchor tappet portion 24 and movable core portion 22 are also connected by means of respective, a stop forming annular heels 28 (Fig. 3, for the plunger portion 24) and 30 (for the movable core portion) and form a driver unit (driving means), indicated by the dashed border 32nd in Fig. 3, from.
- FIG. 3 also illustrates the core gap 34 formed in the axial direction between the units 22 and 18.
- Fig 2 illustrates the magnetic field lines by the methods illustrated in connection with Figure 1 components after energizing.:..
- the application of the electrical signal to the At the same time, a magnetic flux takes place from the armature body section 26 into the tappet section 24 and from there into the stationary core section 18, in addition also directly over the armature body Anchor body portion 26 in the movable core portion 22 (via a narrow air gap formed therebetween) and then over the core gap 34 in the stationary core portion 28.
- this second field pattern causes a high force acts on the movable core portion 24 to the Gap 34 to close.
- FIG. 4 illustrates, instead of the steps 30 (for the movable core section) and 28 (for the tappet section), an interacting pair of cones 28a, 30a 3 are designed as Ringkoni and in the manner shown act as a driver, which transmit the closing of the core gap causing force to the armature.
- the realization of the entrainment means outlined in FIG. 5 contains a mutually stepped, multi-stepped pair of annular shoulders 28b and 30b.
- FIGS. 12 to 14 shows the completion and / or replacement of the principle of FIGS. 1 to 11 by a movable yoke plate 40 suitably coupled to the armature. which is driven to close a force-supporting gap 42 when energized and exerts a force assistance to the anchor with the above-described principle.
- the yoke plate 40b is held in the embodiment of FIGS. 18 to 20 between an armature shoulder 46 for transmitting power to the armature and a housing-side shoulder 48 for limiting the stroke of the yoke plate 40b.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Valve Device For Special Equipments (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202008017033U DE202008017033U1 (en) | 2008-12-30 | 2008-12-30 | Electromagnetic actuator |
PCT/EP2009/008045 WO2010075909A1 (en) | 2008-12-30 | 2009-11-12 | Electromagnetic actuator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2257954A1 true EP2257954A1 (en) | 2010-12-08 |
EP2257954B1 EP2257954B1 (en) | 2012-01-04 |
Family
ID=42046305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09767941A Active EP2257954B1 (en) | 2008-12-30 | 2009-11-12 | Electromagnetic actuator |
Country Status (6)
Country | Link |
---|---|
US (1) | US8939431B2 (en) |
EP (1) | EP2257954B1 (en) |
CN (1) | CN102265356B (en) |
AT (1) | ATE540414T1 (en) |
DE (1) | DE202008017033U1 (en) |
WO (1) | WO2010075909A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010048808A1 (en) | 2010-10-20 | 2012-04-26 | Eto Magnetic Gmbh | Electromagnetic actuator |
DE102011015576B4 (en) * | 2011-03-30 | 2014-03-06 | Kendrion (Donaueschingen/Engelswies) GmbH | Fast-switching solenoid |
DE102012204466A1 (en) | 2012-03-21 | 2013-09-26 | Zf Friedrichshafen Ag | Electromagnetic actuating device for electro-hydraulic control device of automatic transmission of motor vehicle, comprises a cylindrical receiving opening and a conical outer portion formed in armature of stationary core portion |
DE102012111851B4 (en) * | 2012-12-05 | 2023-03-16 | Eto Magnetic Gmbh | Electromagnetic actuator |
DE102020116857A1 (en) | 2019-07-08 | 2021-01-14 | ECO Holding 1 GmbH | Actuator for a hydraulic valve and hydraulic valve |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2407963A (en) * | 1943-01-11 | 1946-09-17 | Mcquay Norris Mfg Co | Solenoid |
US2834570A (en) * | 1953-03-27 | 1958-05-13 | Honeywell Regulator Co | Solenoid valve |
FR1496822A (en) | 1966-08-26 | 1967-10-06 | Saunier Duval | Double movable core solenoid valve |
US3737141A (en) * | 1972-04-13 | 1973-06-05 | Control Concepts | Normally closed solenoid operated valve |
US4056255A (en) * | 1975-05-08 | 1977-11-01 | Lace Donald A | Valve actuator |
US5422617A (en) | 1993-05-28 | 1995-06-06 | Imc Magnetics Corp. | Multiple coil, multiple armature solenoid |
DE19543142A1 (en) * | 1995-11-18 | 1997-05-22 | Schultz Wolfgang E | Electromagnet with movable core part |
IT1289794B1 (en) * | 1996-12-23 | 1998-10-16 | Elasis Sistema Ricerca Fiat | IMPROVEMENTS TO AN ELECTROMAGNETICALLY OPERATED DOSING VALVE FOR A FUEL INJECTOR. |
DE19816315A1 (en) * | 1998-04-11 | 1999-10-14 | Bosch Gmbh Robert | Fuel injector |
DE19855547A1 (en) * | 1998-12-02 | 2000-06-08 | Bosch Gmbh Robert | Electromagnetically actuated valve |
DE19904901A1 (en) * | 1999-02-06 | 2000-08-10 | Zahnradfabrik Friedrichshafen | Proportional pressure control valve |
US6047718A (en) * | 1999-04-01 | 2000-04-11 | Emersonelectric Co. | Solenoid valve having coaxial armatures in a single coil design |
FR2834378B1 (en) * | 2001-12-28 | 2004-09-24 | Peugeot Citroen Automobiles Sa | SOLENOID VALVE WITH CORE DISPLACEMENT RACE NOT LIMITED BY THE SIZING OF THE COILS |
JP2003217925A (en) * | 2002-01-21 | 2003-07-31 | Mikuni Corp | Linear actuator device and drive control method |
US6877717B2 (en) * | 2003-03-14 | 2005-04-12 | Kelsey-Hayes Company | Control valve for a vehicular brake system |
US7049916B2 (en) | 2004-01-21 | 2006-05-23 | Keihin Corporation | Electromagnetic apparatus |
JP4383933B2 (en) * | 2004-03-15 | 2009-12-16 | 三菱電機株式会社 | Method for manufacturing output shaft connection structure of electric control valve |
JP4576908B2 (en) * | 2004-07-13 | 2010-11-10 | オムロンヘルスケア株式会社 | Solenoid air valve |
CA2575524A1 (en) * | 2004-07-29 | 2006-02-02 | Miura Co., Ltd. | Shut-off valve |
US7163188B1 (en) * | 2004-07-30 | 2007-01-16 | Emerson Electric Co. | Solenoid valve for fluid flow |
DE202006011905U1 (en) | 2006-08-03 | 2007-12-06 | Eto Magnetic Kg | Electromagnetic actuator |
KR100909426B1 (en) * | 2006-10-17 | 2009-07-24 | 엘에스산전 주식회사 | Actuator |
-
2008
- 2008-12-30 DE DE202008017033U patent/DE202008017033U1/en not_active Expired - Lifetime
-
2009
- 2009-11-12 CN CN200980152308.5A patent/CN102265356B/en active Active
- 2009-11-12 EP EP09767941A patent/EP2257954B1/en active Active
- 2009-11-12 AT AT09767941T patent/ATE540414T1/en active
- 2009-11-12 US US13/142,642 patent/US8939431B2/en active Active
- 2009-11-12 WO PCT/EP2009/008045 patent/WO2010075909A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2010075909A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2257954B1 (en) | 2012-01-04 |
ATE540414T1 (en) | 2012-01-15 |
CN102265356B (en) | 2017-05-03 |
CN102265356A (en) | 2011-11-30 |
WO2010075909A1 (en) | 2010-07-08 |
US20110266475A1 (en) | 2011-11-03 |
DE202008017033U1 (en) | 2010-05-12 |
US8939431B2 (en) | 2015-01-27 |
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