EP1144812A1 - Electromagnetic actuator - Google Patents
Electromagnetic actuatorInfo
- Publication number
- EP1144812A1 EP1144812A1 EP00984875A EP00984875A EP1144812A1 EP 1144812 A1 EP1144812 A1 EP 1144812A1 EP 00984875 A EP00984875 A EP 00984875A EP 00984875 A EP00984875 A EP 00984875A EP 1144812 A1 EP1144812 A1 EP 1144812A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- coil
- pole face
- pole
- electromagnetic actuator
- 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
- H01F7/13—Electromagnets; Actuators including electromagnets with armatures characterised by pulling-force characteristics
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- 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
-
- 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
Definitions
- the invention is based on an electromagnetic actuator according to the preamble of claim 1.
- Known electromagnetic actuators for actuating a valve generally have an electromagnet which acts in an effective area with a magnetic field generated by a coil via at least one pole surface on a correspondingly designed armature surface of a displaceable armature.
- the actuator When the actuator is activated, the armature is drawn from an initial position with the armature surface in the direction of the pole surface and the valve is opened or closed directly from the armature or indirectly via an armature tappet, and usually against a spring force.
- the anchor surface lies on the pole surface.
- the invention is based on an electromagnetic actuator, in particular for actuating a valve, with at least one electromagnet, which in a first effective range with a magnetic field generated by at least one coil via at least one first conical and / or stepped pole surface on a correspondingly designed armature surface of a displaceable Anchor works.
- the electromagnet act in at least one second effective area on at least one second pole face on a corresponding armature face.
- first effective range a long adjustment path with a force that is relatively large from the start of the adjustment movement can advantageously be achieved through a first pole face with a steep cone or with high steps.
- second effective range a large force in the end position, in particular through a ne largely perpendicular to the direction of movement of the second pole face can be achieved.
- the conical and / or stepped first pole face is particularly advantageously arranged at least partially, advantageously completely within the coil.
- the radial and axial installation space inside the coil can be used advantageously and additional installation space can be saved.
- installation space can be saved by arranging the second pole face in the direction of movement of the armature between the armature and the coil.
- this is advantageously carried out essentially perpendicular to the direction of movement of the armature and therefore requires only a small axial installation space.
- a particularly large part of the cross-sectional area of the coil can be used as a pole face and a small actuator with a large force can be achieved.
- the radially inner region of the second pole face can advantageously be used to reliably guide the armature in two directions with a large distance in the direction of movement.
- a component forming the second pole face be formed in one piece with a guide for the armature.
- a favorable magnetic flux can be achieved and additional components, installation space and assembly effort can be saved.
- a particularly large second pole area can be achieved.
- the guide can also be formed by an additional component with special sliding properties.
- the solution according to the invention can be used with various electromagnetic actuators which appear sensible to a person skilled in the art, but particularly advantageously with electromagnetic actuators for actuating a valve, which require a long adjustment path and the greatest possible force in the end position in a small installation space, for example one Solenoid valve for a water cycle etc.
- FIG. 1 shows a section of an actuator in section in a starting position
- FIG. 2 shows an actuator according to FIG. 1 just before an end position
- Fig. 3 is a force-displacement diagram. Description of the embodiment
- FIG. 1 shows an electromagnetic actuator for actuating a valve (not shown in detail) with an electromagnet 10.
- the electromagnet 10 acts in a first
- Armature 22 is connected via an armature tappet 36 to a valve slide (not shown) ,
- the electromagnet 10 acts in a second effective area 24 via a second pole face 26 on a corresponding armature face 28 of the armature 22.
- the first pole face 18 is inside the coil 14 and the second pole face 26 is between the armature 22 in the direction of movement 30, 32 the armature 22 and the coil 14 are arranged.
- the radial and axial installation space within the coil 14 for the first pole face 18 with a steep cone and the installation space in the direction of movement 30, 32 of the armature 22 between the coil 14 and the armature 22 for the second pole face 26 are used, which have a flat cone having.
- the second pole face 26 is formed by a component 34 which is fastened to a pole housing 38.
- the pole housing 38 is closed by a cover 40, on which a coil core 42 is fastened, which forms the first pole face 18.
- the armature 22 is guided via its armature tappet 36 in the coil core 42 and directly in a guide surface 50 in the component 34. If the electromagnet 10 is activated or the coil 14 is energized, specifically with a coil current which enters the plane of the drawing on the coil side 44 and exits the plane of the drawing on the coil side 46, a magnetic flux 48 arises.
- the magnetic flux 48 runs through the Cover 40, the pole housing 38, the component 34, the guide surface 50, the armature 22, the armature surface 20, a working air gap 60, the first pole surface 18 and over the coil core 42 to the cover 40.
- FIG. 3 shows a force-displacement diagram in which a force-displacement characteristic curve 52 is shown isolated from the first effective range 12. The path s is on the abscissa and the force F is plotted on the ordinate.
- the second pole surface 26 and the corresponding armature surface 28 each have a flat cone or are designed essentially perpendicular to the direction of movement 30, 32 of the armature 22.
- the electromagnet 10 acts on the corresponding armature surface 28 via the second pole face 26 only shortly before the end position, but with a relatively large force, as is shown with a force-displacement characteristic curve 54 for the second effective region 24 in FIG. 3.
- the inventive combination of the two effective areas 12, 24 achieves an advantageous force-displacement characteristic curve 56 with a relatively large force in the starting position and a large force in the end position.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnets (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19953788 | 1999-11-09 | ||
DE19953788A DE19953788A1 (en) | 1999-11-09 | 1999-11-09 | Electromagnetic actuator |
PCT/DE2000/003816 WO2001034949A1 (en) | 1999-11-09 | 2000-10-28 | Electromagnetic actuator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1144812A1 true EP1144812A1 (en) | 2001-10-17 |
EP1144812B1 EP1144812B1 (en) | 2005-01-12 |
Family
ID=7928369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00984875A Expired - Lifetime EP1144812B1 (en) | 1999-11-09 | 2000-10-28 | Electromagnetic actuator |
Country Status (9)
Country | Link |
---|---|
US (1) | US6827331B1 (en) |
EP (1) | EP1144812B1 (en) |
JP (1) | JP2003514376A (en) |
KR (1) | KR100744443B1 (en) |
BR (1) | BR0007407B1 (en) |
CZ (1) | CZ299196B6 (en) |
DE (2) | DE19953788A1 (en) |
ES (1) | ES2236014T3 (en) |
WO (1) | WO2001034949A1 (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2827007B1 (en) * | 2001-07-06 | 2003-10-31 | Peugeot Citroen Automobiles Sa | ELECTROMAGNET CONTROL DEVICE, PARTICULARLY FOR A VALVE OF AN INTERNAL COMBUSTION ENGINE |
US7240894B2 (en) * | 2003-05-30 | 2007-07-10 | Borgwarner Inc. | Pulse width modulated solenoid |
JP4285354B2 (en) * | 2004-07-26 | 2009-06-24 | 株式会社デンソー | Linear solenoid and solenoid valve |
US7367636B2 (en) * | 2005-02-16 | 2008-05-06 | Bendix Commercial Vehicle Systems, Llc | Solenoid armature with integrated spherical soft seal |
JP4823554B2 (en) * | 2005-04-19 | 2011-11-24 | 新電元メカトロニクス株式会社 | Electromagnetic actuator |
DE102006007157A1 (en) * | 2005-07-20 | 2007-01-25 | Continental Teves Ag & Co. Ohg | Electrically controllable valve |
US7777603B2 (en) * | 2007-05-03 | 2010-08-17 | Eaton Corporation | Armature and solenoid assembly |
DE102007054652A1 (en) * | 2007-11-16 | 2009-05-20 | Schaeffler Kg | Electromagnetic actuator of a solenoid valve and method of making such actuator |
DE102008032727A1 (en) * | 2008-07-11 | 2010-01-14 | Robert Bosch Gmbh | Hubmagnetanordnung and valve assembly |
CA2736514A1 (en) * | 2008-09-09 | 2010-03-18 | Artemis Intelligent Power Limited | Valve assemblies |
DE102008047364B4 (en) * | 2008-09-15 | 2013-04-18 | Thomas Magnete Gmbh | Solenoid with bearing of Hubankerkolbens in the magnet housing |
CN101676526B (en) * | 2008-09-16 | 2012-01-04 | 金健 | Electric valve assembly |
US7866301B2 (en) * | 2009-01-26 | 2011-01-11 | Caterpillar Inc. | Self-guided armature in single pole solenoid actuator assembly and fuel injector using same |
DE102009027131A1 (en) * | 2009-06-24 | 2010-12-30 | Zf Friedrichshafen Ag | Linear positioning unit for a switching device of a transmission |
DE102010010801B4 (en) * | 2010-03-09 | 2013-02-21 | Eto Magnetic Gmbh | actuator |
KR101322941B1 (en) | 2012-05-02 | 2013-11-04 | 한국기술교육대학교 산학협력단 | A compact linear actuator |
US8502627B1 (en) | 2012-09-19 | 2013-08-06 | International Controls And Measurements Corporation | Relay with stair-structured pole faces |
JP6186126B2 (en) * | 2013-01-24 | 2017-08-23 | 日立オートモティブシステムズ株式会社 | Fuel injection device |
EP3537014B1 (en) | 2013-05-31 | 2021-08-04 | Dayco IP Holdings, LLC | Sprung gate valves movable by an actuator |
DE102013213712A1 (en) | 2013-07-12 | 2015-01-15 | Zf Friedrichshafen Ag | Electromagnetic actuator and fluid valve with such an actuator |
BR112016004122B1 (en) * | 2013-08-30 | 2022-05-17 | Dayco Ip Holdings, Llc | VALVE DEVICE AND METHOD FOR ASSEMBLY OF A VALVE ACTUATOR ASSEMBLY FOR COUNTER BLOW |
US10221867B2 (en) | 2013-12-10 | 2019-03-05 | Dayco Ip Holdings, Llc | Flow control for aspirators producing vacuum using the venturi effect |
US9599246B2 (en) | 2015-08-05 | 2017-03-21 | Dayco Ip Holdings, Llc | Magnetically actuated shut-off valve |
DE102016119027A1 (en) * | 2016-10-07 | 2018-04-12 | Chr. Mayr Gmbh + Co. Kg | Electromagnetic brake with a controllable armature disc movement |
JP2020017643A (en) * | 2018-07-26 | 2020-01-30 | 多摩川精機株式会社 | Cylindrical solenoid |
JP2020027803A (en) * | 2018-08-09 | 2020-02-20 | 多摩川精機株式会社 | Cylindrical type solenoid |
KR20240068691A (en) * | 2021-11-09 | 2024-05-17 | 미쓰비시덴키 가부시키가이샤 | Solenoids and actuators |
Family Cites Families (28)
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JPS54125372A (en) * | 1978-03-24 | 1979-09-28 | Tokico Ltd | Electromagnetically lockup type actuator |
JPS5619371A (en) * | 1979-07-24 | 1981-02-24 | Aisin Seiki Co Ltd | Electromagnetic motor |
JPS5620172U (en) * | 1979-07-24 | 1981-02-23 | ||
US4403765A (en) * | 1979-11-23 | 1983-09-13 | John F. Taplin | Magnetic flux-shifting fluid valve |
JPS59131669U (en) * | 1983-02-22 | 1984-09-04 | エヌオーケー株式会社 | proportional control solenoid valve |
FR2568402B1 (en) * | 1984-07-24 | 1987-02-20 | Telemecanique Electrique | DIRECT CURRENT ELECTROMAGNET, PARTICULARLY FOR ELECTRIC SWITCHING APPARATUS |
DE3505169C2 (en) * | 1985-02-15 | 1995-04-06 | Mannesmann Ag | Actuating magnet |
US4812884A (en) * | 1987-06-26 | 1989-03-14 | Ledex Inc. | Three-dimensional double air gap high speed solenoid |
JPH0459913U (en) * | 1990-10-01 | 1992-05-22 | ||
US5139224A (en) * | 1991-09-26 | 1992-08-18 | Siemens Automotive L.P. | Solenoid armature bounce eliminator |
US5627504A (en) * | 1992-04-07 | 1997-05-06 | Avl Medical Instruments Ag | Electromagnetic actuating device, in particular for a valve |
DE4217871A1 (en) * | 1992-05-29 | 1993-12-02 | Thomas Magnete Gmbh | Electromagnet with armature provided with a rod |
DE4416858C2 (en) * | 1994-05-13 | 1996-04-11 | Kuhnke Gmbh Kg H | Solenoid |
US5488340A (en) * | 1994-05-20 | 1996-01-30 | Caterpillar Inc. | Hard magnetic valve actuator adapted for a fuel injector |
EP0701054A3 (en) * | 1994-09-09 | 1996-06-12 | Gen Motors Corp | Linear solenoid actuator for an exhaust gas recirculation valve |
US5715704A (en) * | 1996-07-08 | 1998-02-10 | Ranco Incorporated Of Delaware | Refrigeration system flow control expansion valve |
US5878779A (en) * | 1996-08-29 | 1999-03-09 | General Motors Corporation | Actuator housing |
US5687698A (en) * | 1996-08-29 | 1997-11-18 | General Motors Corporation | Exhaust gas recirculation valve |
JP2934609B2 (en) * | 1996-11-13 | 1999-08-16 | ケージーエス株式会社 | solenoid |
EP0870906B1 (en) * | 1997-04-08 | 2002-06-12 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Electromagnetic actuator for the control of a gas exchange valve of an internal combustion engine |
US5947092A (en) * | 1997-09-03 | 1999-09-07 | Siemens Canada Limited | Space-efficient electromagnetic actuated exhaust gas recirculation valve |
DE19804225C1 (en) * | 1998-02-04 | 1999-05-06 | Telefunken Microelectron | Electromagnetic actuator for gas changeover valve of internal combustion engine |
DE19810241C2 (en) * | 1998-03-10 | 2001-07-05 | Bosch Gmbh Robert | Electromagnetic directional control valve |
DE19841499A1 (en) | 1998-09-10 | 2000-03-30 | Beru Ag | Spring-loaded actuation solenoid for e.g. vehicle valve, includes armature and core with varied angles of linear taper and thicknesses varying axially to produce maximum terminal closing- and pull-in forces |
US6062536A (en) * | 1999-05-26 | 2000-05-16 | General Motors Corporation | Solenoid actuator with sealed armature |
FR2798506B1 (en) * | 1999-09-15 | 2001-11-09 | Schneider Electric Ind Sa | ELECTROMAGNETIC ACTUATOR WITH TWO RETURN SPRINGS |
US6373363B1 (en) * | 2000-03-28 | 2002-04-16 | Delphi Technologies, Inc. | Dual coil solenoid for a gas direct injection fuel injector |
JP2001358014A (en) * | 2000-06-14 | 2001-12-26 | Chunichi Denki Kogyo Kk | High-sensitive electromagnet |
-
1999
- 1999-11-09 DE DE19953788A patent/DE19953788A1/en not_active Withdrawn
-
2000
- 2000-10-28 ES ES00984875T patent/ES2236014T3/en not_active Expired - Lifetime
- 2000-10-28 US US09/868,150 patent/US6827331B1/en not_active Expired - Fee Related
- 2000-10-28 WO PCT/DE2000/003816 patent/WO2001034949A1/en active IP Right Grant
- 2000-10-28 EP EP00984875A patent/EP1144812B1/en not_active Expired - Lifetime
- 2000-10-28 DE DE50009218T patent/DE50009218D1/en not_active Expired - Lifetime
- 2000-10-28 KR KR1020017008589A patent/KR100744443B1/en not_active IP Right Cessation
- 2000-10-28 JP JP2001536857A patent/JP2003514376A/en active Pending
- 2000-10-28 BR BRPI0007407-1A patent/BR0007407B1/en not_active IP Right Cessation
- 2000-10-28 CZ CZ20012472A patent/CZ299196B6/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO0134949A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19953788A1 (en) | 2001-05-10 |
WO2001034949A1 (en) | 2001-05-17 |
CZ299196B6 (en) | 2008-05-14 |
US6827331B1 (en) | 2004-12-07 |
CZ20012472A3 (en) | 2002-06-12 |
BR0007407B1 (en) | 2009-05-05 |
BR0007407A (en) | 2001-10-30 |
ES2236014T3 (en) | 2005-07-16 |
KR100744443B1 (en) | 2007-08-01 |
EP1144812B1 (en) | 2005-01-12 |
KR20010101404A (en) | 2001-11-14 |
DE50009218D1 (en) | 2005-02-17 |
JP2003514376A (en) | 2003-04-15 |
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