DE10005953A1 - Method of manufacturing an electromagnetic actuator and electromagnetic actuator - Google Patents
Method of manufacturing an electromagnetic actuator and electromagnetic actuatorInfo
- Publication number
- DE10005953A1 DE10005953A1 DE10005953A DE10005953A DE10005953A1 DE 10005953 A1 DE10005953 A1 DE 10005953A1 DE 10005953 A DE10005953 A DE 10005953A DE 10005953 A DE10005953 A DE 10005953A DE 10005953 A1 DE10005953 A1 DE 10005953A1
- Authority
- DE
- Germany
- Prior art keywords
- armature
- air gap
- pole faces
- yoke
- 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.)
- Withdrawn
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
- H01F7/14—Pivoting armatures
-
- 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
- H01F7/1638—Armatures not entering the winding
-
- 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
- F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
- F01L2009/2105—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids comprising two or more coils
- F01L2009/2109—The armature being articulated perpendicularly to the coils axes
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
Die Erfindung betrifft ein Verfahren zur Herstellung eines elektromagnetischen Ak tuators mit den Merkmalen des Oberbegriffs des Anspruchs 1 und den Aktuator, der dabei entsteht.The invention relates to a method for producing an electromagnetic Ak tuators with the features of the preamble of claim 1 and the actuator, the thereby arises.
Ein elektromagnetischer Aktuator mit den oben genannten Merkmalen ist z. B. aus der DE 198 24 537 A1 bekannt. Dort wird durch den Aktuator mit zwei Elektroma gneten ein schwenkbar gelagerter Hebel angetrieben, der den Anker beinhaltet. Das der Hebellagerung gegenüberliegende Ende wirkt auf den Schaft eines Ventils eines Verbrennungsmotors ein.An electromagnetic actuator with the above features is such. B. from known from DE 198 24 537 A1. There is two electric actuators gneen driven a pivoted lever that contains the anchor. The the end opposite the lever bearing acts on the stem of a valve Internal combustion engine.
Für einen solchen Aktuator ist es wichtig, daß einerseits möglichst geringe Massen zu bewegen sind. Andererseits soll der Magnetwirkungsgrad in den Endstellungen möglichst hoch sein, weil dann der Energiebedarf des Aktuators gering ist. Hierzu ist es notwendig, daß der Anker in den Endstellungen einen möglichst kleinen Luftspalt aufweist.For such an actuator, it is important that the masses are as small as possible are to be moved. On the other hand, the magnetic efficiency should be in the end positions be as high as possible because then the energy requirement of the actuator is low. This is it is necessary for the armature to have the smallest possible air gap in the end positions having.
Wenn die Elektromagnete hohe Kräfte entwickeln, kommt es zu Durchbiegungen des Magnetjochs, die einen relativ großen Restluftspalt zur Folge haben, was einen ho hen Haltestrom und damit eine hohe Haltestromleistung bedeutet. Dieser Nachteil tritt insbesondere dann auf, wenn wie in der älteren Anmeldung PCT/EP99/08755 beschrieben die Tiefe der Joche und des Ankers groß ist, z. B. die Tiefe zur Breite größer 1,5 bzw. 2 oder gar größer 3 ist. Zur Definition der Tiefe T und Breite B wird auf Fig. 1 der Zeichnung verwiesen, wo diese Größen eingezeichnet sind. When the electromagnets develop high forces, there are deflections of the magnetic yoke, which result in a relatively large residual air gap, which means a high holding current and thus a high holding current output. This disadvantage occurs in particular when, as described in the earlier application PCT / EP99 / 08755, the depth of the yokes and of the anchor is large, e.g. B. the depth to the width is greater than 1.5 or 2 or even greater than 3. For the definition of the depth T and width B, reference is made to FIG. 1 of the drawing, where these variables are shown.
Auf den langen Anker, der die Antriebskraft auf den Ventilschaft überträgt, wirken ebenfalls verbiegende Kräfte ein.Act on the long armature, which transfers the driving force to the valve stem bending forces.
Es besteht die Möglichkeit diese Verbiegungen durch Verstärkungen klein zu halten, was jedoch Erhöhung des Gewichts bedeutet.It is possible to keep these bends small by means of reinforcements, which however means weight gain.
Der Erfindung liegt die Aufgabe zu Grunde, eine Möglichkeit zu schaffen, den Luftspalt klein zu halten, ohne daß eine wesentliche Gewichtserhöhung zu Stande kommt.The invention is based on the object of creating a possibility To keep the air gap small without causing a significant increase in weight is coming.
Diese Aufgabe wird durch die Herstellungsmerkmale des Anspruchs 1, bzw. die An ordnungsmerkmale des Anspruchs 9 gelöst. Die Unteransprüche beinhalten Weiter bildungen der Erfindung.This object is achieved by the manufacturing features of claim 1, respectively resolved features of claim 9. The subclaims include further formations of the invention.
Die erfindungsgemäße Lösung besteht somit darin, die durch die Verbiegungen ent stehenden Luftspaltvergrößerungen in den Endstellungen durch eine entsprechende Profilgebung der Polflächen und/oder der Ankerflächen zumindest weitgehend zu kompensieren. Es soll also in den Endstellungen zwischen den gesamten Polflächen und den entsprechenden Flächen des Ankers ein homogener kleiner Luftspalt ent stehen.The solution according to the invention thus consists in the ent caused by the bends standing air gap enlargement in the end positions by a corresponding Profiling of the pole faces and / or the anchor faces at least largely compensate. So it should be in the end positions between the entire pole faces and the corresponding areas of the armature ent a homogeneous small air gap stand.
Anhand des Ausführungsbeispiels der Zeichnung wird die Erfindung näher erläutert. Es zeigen:The invention is explained in more detail using the exemplary embodiment of the drawing. Show it:
Fig. 1 eine perspektivische Darstellung eines Aktuators Fig. 1 is a perspective view of an actuator
Fig. 2a bis 2c prinzipielle Seitenansichten des Aktuators der Fig. 1 in verschiedenen Situationen Fig. 2a to 2c basic side views of the actuator of Fig. 1 in different situations
In Fig. 1 ist in perspektivischer Darstellung ein Aktuator gezeigt. Er besteht aus zwei Elektromagneten 1 und 2 mit Jochen 1a und 2a und Wicklungen 1b und 2b. Die Jo che 1a und 2a sind zwischen Lagerplatten 3 angeordnet, von denen die vordere zur Verbesserung der Übersicht weggelassen wurde. Es sind hier nur die Befestigungs öffnungen 4 für Verbindungsschrauben gezeigt. Zwischen den Elektromagneten 1 und 2 ist ein Anker 5 angeordnet, der an einem um die Achse 6a schwenkbaren Rohr 6 befestigt ist. Der Anker 5 ist Teil eines aus Ankerrohr 6, Anker 5 und Betätigungsteil 7 bestehenden Hebels, wobei das Betätigungsteil 7 entgegen einer Ventilfederkraft auf den Ventilschaft einwirkt. Mit 8 ist eine Torsionsfeder in Form eines Biegerohrs bezeichnet, die die entgegengesetzt gerichteten Federkräfte auf den Anker 5 er zeugt. Es sind hier Elektromagnete 1 und 2 mit im Vergleich zur Breite B großer Tiefe T (T : B z. B < 2) dargestellt, bei denen das eingangs beschriebene Verbiegungspro blem besonders stark auftritt.In Fig. 1, an actuator is shown in perspective. It consists of two electromagnets 1 and 2 with yokes 1 a and 2 a and windings 1 b and 2 b. The Jo che 1 a and 2 a are arranged between bearing plates 3 , of which the front has been omitted to improve the overview. Only the fastening openings 4 for connecting screws are shown here. An armature 5 is arranged between the electromagnets 1 and 2 and is fastened to a tube 6 which can be pivoted about the axis 6 a. The armature 5 is part of a lever consisting of the armature tube 6 , the armature 5 and the actuating part 7 , the actuating part 7 acting against the valve spring force on the valve stem. With 8 a torsion spring in the form of a bending tube is referred to, which testifies the oppositely directed spring forces on the armature 5 . There are electromagnets 1 and 2 with a greater depth T than the width B (T: B, for example, <2), in which the above-described problem of bending occurs particularly strongly.
Die Fig. 2a zeigt von der Seite gesehen die Joche 1a und 2a zwischen den teilweise unterbrochen gezeichneten Lagerplatten 3 und den Anker 5 mit dem Betätigungs teil 7. Die ausgezogenen Linien oben und unten zeigen die Verläufe der Joche ohne Einwirkung von Magnetkräften. In Fig. 2b ist oben der Anker 5 in die obere Endstel lung gebracht. Auf das Joch 1a wirkt die Magnetkraft, die zu Verbiegungen des Jochs führt. Auch der Anker 5 wird durch die auf ihn wirkende Kraft der Torsionsfe der 8 verbogen. In Fig. 2b unten ist die entsprechende Situation bei Aktivierung des unteren Magneten gezeigt, wobei die Ankerverbiegung durch die Ventilfederkraft FV erzeugt wird. Schraffiert sind die entstehenden Luftspalte eingezeichnet. Die Verbie gungen und Luftspalte sind übertrieben dargestellt. Fig. 2a shows seen from the side, the yokes 1 a and 2a between the partially interrupted drawn support plates 3 and the anchor 5 with the actuating member 7. The solid lines above and below show the course of the yokes without the influence of magnetic forces. In Fig. 2b, the armature 5 is brought into the upper end setting. The magnetic force acts on the yoke 1 a, which leads to bending of the yoke. The armature 5 is also bent by the force of the torsion spring 8 acting on it. The corresponding situation when the lower magnet is activated is shown in FIG. 2 b below, the armature bending being generated by the valve spring force F V. The resulting air gaps are shown hatched. The bends and air gaps are exaggerated.
Wird nun, wie beschrieben, z. B. durch finite Elemente Berechnungsverfahren, die Biegelinie berechnet, wie dies in Fig. 2b oben und unten festgehalten ist, so kann man z. B. ohne etwas am Anker zu ändern, den Jochen 1a und 2a die in der Fig. 2c gezeigten Profile 1a' und 2a' geben. Ohne Belastung sind diese in Fig. 2a mit 1a''' und 2a''' gezeigt. Bei Betätigung des entsprechenden Elektromagneten legt sich dann der Anker 5 mit minimalem Luftspalt an das neue Profil an, wobei der minimale Luftspalt nicht 0 sein muß. Zur Klarstellung der Fig. 2b und 2c: Die Profile 1a' und 2a' der Fig. 2c müssen den Verläufen 1a" und 2a" der Fig. 2b entsprechen.Now, as described, for. B. by finite element calculation method, which calculates the bending line, as is shown in Fig. 2b above and below, you can z. B. without changing anything on the anchor, the yokes 1 a and 2 a give the profiles 1 a 'and 2 a' shown in Fig. 2c. Without load, these are shown in Fig. 2a with 1a '''and2a'''. When the corresponding electromagnet is actuated, the armature 5 then contacts the new profile with a minimal air gap, the minimum air gap not having to be 0. For clarification of FIGS. 2b and 2c: the profiles 1 a 'and 2 a' of FIG. 2c must correspond to the courses 1 a "and 2 a" of FIG. 2b.
Alternativ können die Luftspalte z. B. auch durch ein Abdruckverfahren ermittelt wer den.Alternatively, the air gaps z. B. also determined by an impression process the.
Die gewünschte Profilierung kann durch Auf- und/oder Abtrageverfahren erzeugt werden.The desired profiling can be created by applying and / or removing methods become.
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10005953A DE10005953A1 (en) | 2000-02-09 | 2000-02-09 | Method of manufacturing an electromagnetic actuator and electromagnetic actuator |
PCT/EP2001/001265 WO2001059267A1 (en) | 2000-02-09 | 2001-02-06 | Method for producing an electromagnetic actuator, and electromagnetic actuator |
EP01905739A EP1169553A1 (en) | 2000-02-09 | 2001-02-06 | Method for producing an electromagnetic actuator, and electromagnetic actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10005953A DE10005953A1 (en) | 2000-02-09 | 2000-02-09 | Method of manufacturing an electromagnetic actuator and electromagnetic actuator |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10005953A1 true DE10005953A1 (en) | 2001-08-16 |
Family
ID=7630490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10005953A Withdrawn DE10005953A1 (en) | 2000-02-09 | 2000-02-09 | Method of manufacturing an electromagnetic actuator and electromagnetic actuator |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1169553A1 (en) |
DE (1) | DE10005953A1 (en) |
WO (1) | WO2001059267A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10225358A1 (en) * | 2002-06-07 | 2003-12-24 | Daimler Chrysler Ag | Electromagnetic actuator e.g. for gas exchange valve, has torsion bar fixed to torque converter bearing arranged centrally on pivot armature |
DE10224866A1 (en) * | 2002-06-05 | 2003-12-24 | Daimler Chrysler Ag | Electromagnetic actuator for gas exchange valve in reciprocating internal combustion engine has torsion bar connected to housing via elastically and/or plastically deformable member whose characteristics are adapted to application |
DE102004050013B4 (en) * | 2003-10-14 | 2009-03-19 | Visteon Global Technologies Inc., Van Buren | Electromechanical valve release |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007040162A (en) | 2005-08-02 | 2007-02-15 | Toyota Motor Corp | Electromagnetic driving valve |
JP2008180140A (en) * | 2007-01-24 | 2008-08-07 | Toyota Motor Corp | Solenoid-driven valve |
GB2466810A (en) | 2009-01-08 | 2010-07-14 | Visa Europe Ltd | Processing payment authorisation requests |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0170562A1 (en) * | 1984-07-24 | 1986-02-05 | Telemecanique | Direct-current electromagnet, in particular for an electric commutator device |
DE3626147A1 (en) * | 1985-08-03 | 1987-02-05 | Zahnradfabrik Friedrichshafen | ACTUATING DEVICE |
DE19712064A1 (en) * | 1997-03-24 | 1998-10-01 | Braunewell Markus | Electro-magnetic drive for valve activation or pump of combustion engine |
DE19716517A1 (en) * | 1997-04-21 | 1998-10-22 | Thomas Magnete Gmbh | Electromagnet esp. for automotive industry |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29713167U1 (en) * | 1997-07-24 | 1998-11-19 | Fev Motorentech Gmbh & Co Kg | Electromagnetic actuator with elastically deformable armature |
DE19824537A1 (en) * | 1998-06-03 | 1999-12-09 | Lsp Innovative Automotive Sys | Electromagnetic drive for actuating valve in internal combustion engine |
-
2000
- 2000-02-09 DE DE10005953A patent/DE10005953A1/en not_active Withdrawn
-
2001
- 2001-02-06 EP EP01905739A patent/EP1169553A1/en not_active Withdrawn
- 2001-02-06 WO PCT/EP2001/001265 patent/WO2001059267A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0170562A1 (en) * | 1984-07-24 | 1986-02-05 | Telemecanique | Direct-current electromagnet, in particular for an electric commutator device |
DE3626147A1 (en) * | 1985-08-03 | 1987-02-05 | Zahnradfabrik Friedrichshafen | ACTUATING DEVICE |
DE19712064A1 (en) * | 1997-03-24 | 1998-10-01 | Braunewell Markus | Electro-magnetic drive for valve activation or pump of combustion engine |
DE19716517A1 (en) * | 1997-04-21 | 1998-10-22 | Thomas Magnete Gmbh | Electromagnet esp. for automotive industry |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10224866A1 (en) * | 2002-06-05 | 2003-12-24 | Daimler Chrysler Ag | Electromagnetic actuator for gas exchange valve in reciprocating internal combustion engine has torsion bar connected to housing via elastically and/or plastically deformable member whose characteristics are adapted to application |
DE10225358A1 (en) * | 2002-06-07 | 2003-12-24 | Daimler Chrysler Ag | Electromagnetic actuator e.g. for gas exchange valve, has torsion bar fixed to torque converter bearing arranged centrally on pivot armature |
DE102004050013B4 (en) * | 2003-10-14 | 2009-03-19 | Visteon Global Technologies Inc., Van Buren | Electromechanical valve release |
Also Published As
Publication number | Publication date |
---|---|
EP1169553A1 (en) | 2002-01-09 |
WO2001059267A1 (en) | 2001-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |