EP1348221B1 - Electromagnet with a magnet armature - Google Patents
Electromagnet with a magnet armature Download PDFInfo
- Publication number
- EP1348221B1 EP1348221B1 EP01990347A EP01990347A EP1348221B1 EP 1348221 B1 EP1348221 B1 EP 1348221B1 EP 01990347 A EP01990347 A EP 01990347A EP 01990347 A EP01990347 A EP 01990347A EP 1348221 B1 EP1348221 B1 EP 1348221B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- magnet
- electromagnet
- recess
- recesses
- 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.)
- Expired - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/005—Pressure relief valves
- F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
- F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures
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- 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
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- 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
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- 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
- H01F7/1623—Armatures having T-form
Definitions
- the invention relates to an electromagnet with magnet armature with the features mentioned in the preamble of the independent claim 1.
- Known electromagnets with a magnet armature are used for example in solenoid valves of pressure control valves for injection systems of internal combustion engines.
- Such solenoid valves have electrical connection elements which are performed by a side facing away from the electromagnet side of the magnet armature through a recess of the armature plate and contacted with the magnetic coil.
- the known electromagnets have mechanical alignment means in the form of a fixing pin and cooperating with the fixing pin notch in the Anchor plate, which alignment means cause alignment of the armature plate to a predetermined angle of rotation and prevent the armature plate rubs against the electrical connection elements of the magnetic coil.
- the disadvantage is that the mechanical alignment means can affect the movement of the armature.
- the electromagnet with magnet armature according to the invention according to the independent claim 1 of the application avoids the disadvantages associated with the use of mechanical alignment means.
- at least one recess in the armature plate and a recess associated with this second recess in the pole face of the magnetic core is achieved that the armature plate is aligned with a current applied to the magnetic coil by magnetic forces to a predetermined rotational position in which then, for example, the connection elements contact a recess of Penetrate anchor plate.
- Advantageously, therefore, can be dispensed with the training of consuming to be manufactured mechanical alignment means.
- the magnetic leakage flux in the region between the inner wall sections of the at least one first recess and the at least one second recess advantageously brings about friction-free alignment of the armature plate and of the magnet armature.
- the inhomogeneity of the magnetic field in the event of a minimal rotation of the armature plate about the anchor bolt results in restoring forces acting on the armature plate which drive the armature back into its predetermined rotational position.
- the invention presented here can for example be advantageously used in pressure control valves in order to avoid friction losses of the armature and an impairment of the closing operation of the solenoid valve.
- the invention can also be used in solenoid valves for injection valves of internal combustion engines, in which an orientation of the magnet armature is required, for example, to save by recesses of the magnet armature fuel drainage channels before a narrowing of the channel cross-section in a rotation of the armature.
- the invention is by no means limited to use in solenoid valves and can be applied to all electromagnets with magnetic armature, in which an alignment a slidably and rotatably mounted armature plate is required to a preferred angular position rotation.
- FIG. 1 a known in the art pressure control valve with an electromagnet and a magnet armature
- Fig. 2 and Fig. 3 a magnet armature according to the invention
- 4 and FIG. 5 a magnetic core of the electromagnet according to the invention, which at the same time forms a housing part of a pressure regulating valve
- Fig. 6 the magnetic core and magnet armature off Fig. 3 and Fig. 5 in assembled condition
- Fig. 7 a cut through Fig. 6 along the line AA at a small deflection of the armature.
- Fig. 1 shows a well-known in the art pressure control valve, which is used for example in fuel injection systems of internal combustion engines to adjust the pressure in a high-pressure fuel storage depending on the load state of the internal combustion engine.
- the pressure control valve has a flange 12 for connection to a high-pressure fuel pump or a high-pressure fuel storage.
- An inserted into the flange portion 12 of the pressure control valve member 13 has a connected to the high pressure side fuel inlet channel 8, which opens with its one end into a valve seat 7 of the valve member 13.
- Side openings 9 of the valve member 13 are connected in a manner not shown with a fuel return.
- An electromagnet controls the opening and closing of the pressure control valve.
- the electromagnet has a plan view in approximately cylindrical magnetic core 2, which also forms a housing part of the pressure control valve. In an annular recess 11 of the magnetic core, a magnetic coil 1 is arranged. Furthermore, the electromagnet has a magnet armature 3 with anchor plate 31 and anchor bolt 32, which engages anchor bolt in a cylindrical through-hole of the magnetic core 2 slidably and rotatably. The end remote from the anchor plate 31 of the anchor bolt 32 cooperates with a valve member 6 designed as a ball. The anchor bolt 31 with the valve member 6 is acted upon by a spring 4, which is supported with its one end to a housing part 14 of the pressure regulating valve and with its other end to the armature plate 31.
- the pressure regulating valve has electrical connection elements 5, which connect an electrical connection part 10 of the pressure regulating valve with the magnetic coil 1. Since the armature plate 31 is disposed between the terminal part 10 and the solenoid coil 1, the electrical connection elements 5 have a in Fig. 1 not shown recess in the anchor plate 31 penetrate. On a turn the anchor plate 31 about the axis of the anchor bolt 32 rub the provided with a plastic sheath connecting elements disadvantageously on the inner wall of the recess of the anchor plate. For this reason, known in the prior art electromagnets use mechanical alignment means, which align the anchor plate in a predetermined rotational position, but allow a displacement of the armature plate perpendicular to the pole face 22 of the electromagnet.
- FIGS. 2 to 7 an embodiment of the invention is shown.
- the invention is not limited to use in pressure control valves or solenoid valves, but can be used in all solenoids with magnetic armature, in which an orientation of the armature to a predetermined rotational position is desirable.
- the in the FIGS. 2 and 3 illustrated armature 3 comprises a substantially circular armature plate 31 and a vertically projecting from the anchor plate anchor bolt 32 with a circular cross-section.
- a recess 35 in the armature plate is used to carry out electrical connection elements of a magnetic coil.
- the anchor plate has two approximately U-shaped continuous first recesses 33, whose open sides are arranged on the circumference of the anchor plate and which are diametrically opposed with respect to the anchor bolt 32.
- FIG. 4 a cup-shaped housing part of a pressure control valve is shown.
- Fig. 4 shows a cross section through Fig. 5 along the line II.
- the housing part has a the magnetic core 2 forming, cylindrical central part and lateral fastening tongues 15 for fixing the pressure control valve to, for example, a high-pressure fuel pump.
- the magnetic core is made of soft iron or other material of high permeability.
- a flange portion 12 of the housing part serves as in FIG Fig. 1 shown, for receiving a valve piece and for connection to the high-pressure outlet of a high-pressure fuel pump.
- the cylindrical central part has a central cylindrical passage opening 26 and a concentric annular recess 11 which is adapted to receive a in Fig.
- Fig. 5 is the electrical connection 28 of the solenoid 1 indicated schematically.
- the recess 11 is bounded in the radial direction inwardly by a first cylinder jacket-shaped wall 23 and outwardly by a second cylinder jacket-shaped wall 24.
- the ends of the first wall 21 and the second wall 24 facing away from the flange region 12 form two concentric annular surfaces 21 and 22 arranged in one plane.
- a circumferential collar 16 protruding from the surface 22 serves to receive a second housing part 14, as in FIG Fig. 1 shown.
- the inner wall 23 When inserted into the recess 11 magnetic coil, the inner wall 23 forms a coil penetrating portion of the magnetic core 2, which is connected via a bottom plate 25 with a coil surrounding the outer wall portion 24 of the magnetic core.
- the two surfaces 21,22 thereby form two pole faces of the magnetic core 2, so that would be closed by an applied to the two pole faces 21,22 anchor plate 31 of the magnetic circuit.
- second recesses 27 are arranged in the outer pole face 22 of the magnetic core, which are associated with the first recesses 33 in the anchor plate 31 and with respect to the passage opening 26 diametrically opposite.
- Fig. 6 shows the magnetic core without magnetic coil but with inserted magnet armature.
- the magnet armature is slidably slidable by means of the anchor bolt 32 and initially inserted in a rotatable manner into the cylindrical passage opening 26.
- a preferred rotational position of the armature plate 31 is the terminal 28 of the solenoid from Fig. 5 in the projection of the recess 35 of the armature plate 31 in the sliding direction of the armature 3.
- Electrical connection element can pass straight through the anchor plate 31 in this rotational position parallel to the anchor bolt 32, without rubbing against the inner edges of the recess 35.
- the first recesses 33 and the second recesses 27 serve.
- the distances a and b not exactly the same.
- a first recess and a second recess may be provided instead of the first two recesses and the two second recesses.
- more than two recesses in the anchor plate and the pole face of the magnetic core are possible. It is essential that at least one first recess, the radial to Is offset axis of the anchor bolt, a second recess in the pole face of the magnetic core is assigned.
- Fig. 7 shows a section of a cross section along the line AA in Fig. 6 in which the anchor plate 31 has been intentionally rotated from the predetermined rotational position about the axis of the anchor bolt 31 so that the pole face 36 of the anchor plate 31 facing the magnetic core 31 and the first recess 33 and the pole face 22 of the magnetic core 2 and the second recess 27 partially overlap.
- Fig. 6 can be seen results in this rotational position in a current application of the magnetic coil 1 from the then inhomogeneous stray magnetic field (dashed lines in Fig.
- the armature plate is constantly aligned by the leakage magnetic field to the predetermined rotational position.
- the armature plate is quasi fixed with the electromagnet turned on to the smallest, barely detectable torsional vibrations in its rotational position.
- the rotational movements of the armature plate are so small that the inner edges of the recess 35, the terminal elements 5 of the solenoid coil 1 when the solenoid is not or only minimally touch and the sliding movement of the armature is not affected when closing or opening the pressure control valve.
- Electromagnet prevent the electrical connection elements of the solenoid coil, which pass through the recess 35, a strong deflection of the armature plate, so that the armature plate aligns with renewed actuation of the electromagnet immediately back to the predetermined rotational position.
- the armature plate and the pole face of the magnetic core each have two recesses.
- it may be provided to increase the number of first recesses in the armature plate and the second recesses in the pole face of the magnetic core to the extent that regardless of the starting position of the armature plate when switching on the electromagnet by the magnetic alignment always sets a preferred rotational position in which the first recesses and the second recesses associated therewith lie opposite one another.
- the number and circumferential length a of the first recesses 33 of the anchor plate 31 may be equal to the number and circumferential length of the first recesses of each other separating pole surface segments of the anchor plate 31.
- Such an embodiment of the anchor plate and the magnetic core is particularly suitable for such solenoid valves, in which no terminal elements engage through the anchor plate.
- the number of mutually opposite recesses is proportional to the aligning force F of the anchor plate. This number can therefore be designed in the individual case to the size of the required restoring force F.
- the invention has been illustrated by the example of a pressure control valve, it can also be used in other solenoid valves. It is conceivable, for example, the use in solenoid valves of injection valves for injection systems to to prevent that in the anchor plate provided drain passages for outflowing fuel can be reduced by a rotation of the anchor plate in cross-section.
- the principle of operation of the electromagnet with anchor plate presented here is not limited to use in solenoid valves, but can be advantageously applied to all electromagnets in which it is advisable to align a slidably mounted and rotatably mounted armature plate in a preferred rotational position.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Fuel-Injection Apparatus (AREA)
- Electromagnets (AREA)
Description
Die Erfindung betrifft einen Elektromagneten mit Magnetanker mit den im Oberbegriff des unabhängigen Anspruchs 1 genannten Merkmalen.The invention relates to an electromagnet with magnet armature with the features mentioned in the preamble of the
Bekannte Elektromagnete mit einem Magnetanker werden beispielsweise in Magnetventilen von Druckregelventilen für Einspritzanlagen von Brennkraftmaschinen eingesetzt. Derartige Magnetventile weisen elektrische Anschlußelemente auf, die von einer dem Elektromagneten abgewandten Seite des Magnetankers aus durch eine Aussparung der Ankerplatte durchgeführt und mit der Magnetspule kontaktiert werden. Um zu verhindern, daß bei einer Betätigung des Elektromagneten die Anschlußelemente mit der Innenwandung der Aussparung der Ankerplatte in Kontakt gelangen und durch Reibung die Bewegung der Ankerplatte beeinträchtigen, weisen die bekannten Elektromagnete mechanische Ausrichtemittel in Form eines Fixierstiftes und einer mit dem Fixierstift zusammenwirkenden Kerbe in der Ankerplatte auf, welche Ausrichtemittel eine Ausrichtung der Ankerplatte auf einen vorbestimmten Drehwinkel bewirken und verhindern, daß die Ankerplatte an den elektrischen Anschlußelementen der Magnetspule reibt. Nachteilig ist jedoch, daß die mechanischen Ausrichtemittel die Bewegung des Magnetankers beeinträchtigen können.Known electromagnets with a magnet armature are used for example in solenoid valves of pressure control valves for injection systems of internal combustion engines. Such solenoid valves have electrical connection elements which are performed by a side facing away from the electromagnet side of the magnet armature through a recess of the armature plate and contacted with the magnetic coil. In order to prevent that upon actuation of the electromagnet, the connecting elements with the inner wall of the recess of the anchor plate come into contact and affect the movement of the armature plate by friction, the known electromagnets have mechanical alignment means in the form of a fixing pin and cooperating with the fixing pin notch in the Anchor plate, which alignment means cause alignment of the armature plate to a predetermined angle of rotation and prevent the armature plate rubs against the electrical connection elements of the magnetic coil. The disadvantage, however, is that the mechanical alignment means can affect the movement of the armature.
Der erfindungsgemäße Elektromagnet mit Magnetanker nach dem unabhängigen Anspruch 1 der Anmeldung vermeidet die mit der Verwendung von mechanischen Ausrichtemitteln verbundenen Nachteile. Durch wenigstens eine Ausnehmung in der Ankerplatte und eine dieser Ausnehmung zugeordnete zweite Ausnehmung in der Polfläche des Magnetkerns wird erreicht, daß die Ankerplatte bei einer Strombeaufschlagung der Magnetspule durch magnetische Kräfte auf eine vorbestimmten Drehstellung ausgerichtet wird, in der dann beispielsweise die Anschlußelemente berührungslos eine Aussparung der Ankerplatte durchdringen. Vorteilhaft kann daher auf die Ausbildung von aufwendig zu fertigenden mechanischen Ausrichtemitteln verzichtet werden. Der magnetische Streufluß im Bereich zwischen den Innenwandungsabschnitten der wenigsten einen ersten Ausnehmung und der wenigstens einen zweiten Ausnehmung bewirkt vorteilhaft eine reibungsfreie Ausrichtung der Ankerplatte und des Magnetankers. Aus der Inhomogenität des Magnetfeldes im Falle einer minimalen Verdrehung der Ankerplatte um den Ankerbolzen resultieren auf die Ankerplatte einwirkende Rückstellkräfte, welche den Magnetanker in seine vorbestimmte Drehstellung zurücktreiben.The electromagnet with magnet armature according to the invention according to the
Die hier vorgestellte Erfindung kann beispielsweise vorteilhaft in Druckregelventilen eingesetzt werden, um Reibungsverluste des Magnetankers und ein Beeinträchtigung des Schließvorgangs des Magnetventils zu vermeiden. Darüber hinaus kann die Erfindung aber auch in Magnetventilen für Einspritzventile von Brennkraftmaschinen eingesetzt werden, bei denen eine Ausrichtung des Magnetankers erforderlich ist, um beispielsweise durch Aussparungen des Magnetankers verlaufende Kraftstoffablaufkanäle vor einer Verengung des Kanalquerschnitts bei einer Verdrehung des Ankers zu bewahren. Die Erfindung ist aber keinesfalls auf die Verwendung in Magnetventilen beschränkt und kann bei allen Elektromagneten mit Magnetanker angewandt werden, bei denen eine Ausrichtung einer gleit- und drehbeweglich gelagerten Ankerplatte auf eine bevorzugte Drehwinkelstellung erforderlich ist.The invention presented here can for example be advantageously used in pressure control valves in order to avoid friction losses of the armature and an impairment of the closing operation of the solenoid valve. In addition, however, the invention can also be used in solenoid valves for injection valves of internal combustion engines, in which an orientation of the magnet armature is required, for example, to save by recesses of the magnet armature fuel drainage channels before a narrowing of the channel cross-section in a rotation of the armature. However, the invention is by no means limited to use in solenoid valves and can be applied to all electromagnets with magnetic armature, in which an alignment a slidably and rotatably mounted armature plate is required to a preferred angular position rotation.
Vorteilhafte Ausführungsbeispiele und Weiterbildungen der Erfindung werden durch die in den Unteransprüchen enthaltenen Merkmale ermöglicht.Advantageous embodiments and further developments of the invention are made possible by the features contained in the subclaims.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird in der nachfolgenden Beschreibung erläutert. Es zeigt
Wie in
In den
In
Bei in die Ausnehmung 11 eingesetzter Magnetspule bildet die innere Wand 23 einen die Spule durchdringenden Abschnitt des Magnetkerns 2 aus, der über eine Bodenplatte 25 mit einem die Spule umgebenden äußeren Wandabschnitt 24 des Magnetkerns verbunden ist. Die beiden Flächen 21,22 bilden dabei zwei Polflächen des Magnetkerns 2, so daß durch eine auf die beiden Polflächen 21,22 aufgelegte Ankerplatte 31 der magnetische Kreis geschlossen würde. Wie am besten in
Wie in
In dem bisher dargestellten Ausführungsbeispiel weist die Ankerplatte und die Polfläche des Magnetkerns jeweils zwei Ausnehmungen auf. In einem anderen Ausführungsbeispiel kann vorgesehen sein, die Anzahl der ersten Ausnehmungen in der Ankerplatte und der zweiten Ausnehmungen in der Polfläche des Magnetkerns soweit zu erhöhen, daß sich unabhängig von der Ausgangsposition der Ankerplatte beim Einschalten des Elektromagneten durch die magnetische Ausrichtung immer eine bevorzugte Drehstellung einstellt, in der sich die ersten Ausnehmungen und die diesen zugeordneten zweiten Ausnehmungen einander gegenüberliegen. Insbesondere kann die Anzahl und Umfangslänge a der ersten Ausnehmungen 33 der Ankerplatte 31 gleich der Anzahl und Umfangslänge der die ersten Ausnehmungen voneinander trennenden Polflächensegmente der Ankerplatte 31 sein. Im Magnetkern ist dann eine entsprechende Anzahl von zweiten Ausnehmungen 27 mit gleicher Umfangslänge (b = a) vorgesehen. Eine derartige Ausführung der Ankerplatte und des Magnetkerns ist insbesondere für solche Magnetventile geeignet, bei denen keine Anschlußelemente durch die Ankerplatte greifen.In the embodiment shown so far, the armature plate and the pole face of the magnetic core each have two recesses. In another embodiment, it may be provided to increase the number of first recesses in the armature plate and the second recesses in the pole face of the magnetic core to the extent that regardless of the starting position of the armature plate when switching on the electromagnet by the magnetic alignment always sets a preferred rotational position in which the first recesses and the second recesses associated therewith lie opposite one another. In particular, the number and circumferential length a of the
Die Anzahl der sich einander gegenüberliegenden Ausnehmungen ist proportional der ausrichtenden Kraft F der Ankerplatte. Diese Anzahl kann folglich im Einzelfall auf die Größe der benötigten Rückstellungskraft F ausgelegt werden.The number of mutually opposite recesses is proportional to the aligning force F of the anchor plate. This number can therefore be designed in the individual case to the size of the required restoring force F.
Obwohl die Erfindung hier am Beispiel eines Druckregelventils dargestellt wurde, kann sie auch bei anderen Magnetventilen verwandt werden. Denkbar ist beispielsweise der Einsatz in Magnetventilen von Einspritzventilen für Einspritzanlagen, um zu verhindern, daß in der Ankerplatte vorgesehene Ablaufdurchgänge für abfließenden Kraftstoff durch eine Drehung der Ankerplatte im Querschnitt verkleinert werden. Das hier vorgestellte Wirkungsprinzip des Elektromagneten mit Ankerplatte ist aber nicht auf die Verwendung in Magnetventilen beschränkt, sondern kann vorteilhaft bei allen Elektromagneten angewandt werden, bei denen es empfehlenswert ist, eine gleitverschiebbar und drehbeweglich gelagerte Ankerplatte in einer bevorzugten Drehstellung auszurichten.Although the invention has been illustrated by the example of a pressure control valve, it can also be used in other solenoid valves. It is conceivable, for example, the use in solenoid valves of injection valves for injection systems to to prevent that in the anchor plate provided drain passages for outflowing fuel can be reduced by a rotation of the anchor plate in cross-section. The principle of operation of the electromagnet with anchor plate presented here is not limited to use in solenoid valves, but can be advantageously applied to all electromagnets in which it is advisable to align a slidably mounted and rotatably mounted armature plate in a preferred rotational position.
Claims (8)
- Electromagnet with a magnet armature, in particular for use in a solenoid valve, comprising a magnet coil (1), a magnet core (2) which passes through the magnet coil (1) and has at least one pole face (22), a magnet armature (3) which is mounted such that it can be displaced perpendicular to the at least one pole face (22) of the magnet core (2) and has an armature plate (31) which faces the pole face (22) and has an armature bolt (32) which is mounted such that it protrudes from the armature plate (31) and can be displaced in a sliding manner and can rotate, and alignment means which are formed on the electromagnet and/or the magnet armature and align the armature plate (31) with a predetermined rotation position, characterized in that the alignment means comprise at least one first recess (33) which is radially offset in relation to the armature bolt (32) and is formed in the armature plate (31), and at least one second recess (27) which is arranged in the at least one pole face (22) of the magnet core (2) and is associated with the first recess (33), which second recess (27), in the event of current being applied to the magnet coil (1), magnetically interacts with the first recess (33) in such a way that the armature plate (31) is aligned with the predetermined rotation position.
- Electromagnet with a magnet armature according to Claim 1, characterized in that the distance (a) between two inner wall sections (33a, 33b) of the first recess (33), which wall sections are situated opposite one another in the circumferential direction, corresponds to the distance (b) between two inner wall sections (27a, 27b) of the second recess (27), which wall sections are situated opposite one another in the same direction.
- Electromagnet with a magnet armature according to Claim 1 or 2, characterized in that the second recess (27) is arranged at least partially within the projection of the first recess (33) in the sliding direction of the magnet armature (3).
- Electromagnet with a magnet armature according to one of the preceding claims, characterized in that the alignment means comprise two first recesses (33) which are situated diametrically opposite with respect to the shaft (37) of the armature bolt (32), and two second recesses (27) which are associated with the said first recesses and are likewise situated diametrically opposite with respect to the shaft (37) of the armature bolt (32).
- Electromagnet with a magnet armature according to one of Claims 1 to 4, characterized in that, in the predetermined rotation position of the armature plate (31), electrical connection elements (5) of the magnet coil (1) reach through a cutout (35) in the armature plate (31) from a side of the armature plate (31) which is averted from the magnet coil (1), without touching the armature plate.
- Electromagnet with a magnet armature according to one of Claims 1 to 3, characterized in that the number and the circumferential length (a) of the first recesses (33) in the armature plate (31) are equal to the number and circumferential length of the pole face segments (36) of the armature plate (31) which separate the first recesses from one another, and in that the magnet core (2) has a corresponding number of second recesses (27) with the same circumferential length.
- Electromagnet with a magnet armature according to one of Claims 1 to 3, characterized in that the number and circumferential length of the first recesses (33) and of the second recesses (27) are matched to the size of the required restoring force (F).
- Solenoid valve, in particular solenoid valve for a fuel injection system, having an electromagnet and an electromagnet and a magnet armature according to one of Claims 1 to 7.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10065016A DE10065016A1 (en) | 2000-12-23 | 2000-12-23 | Electromagnet with magnetic armature |
DE10065016 | 2000-12-23 | ||
PCT/DE2001/004833 WO2002052587A1 (en) | 2000-12-23 | 2001-12-20 | Electromagnet with a magnet armature |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1348221A1 EP1348221A1 (en) | 2003-10-01 |
EP1348221B1 true EP1348221B1 (en) | 2008-02-27 |
Family
ID=7668983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01990347A Expired - Lifetime EP1348221B1 (en) | 2000-12-23 | 2001-12-20 | Electromagnet with a magnet armature |
Country Status (8)
Country | Link |
---|---|
US (1) | US6674351B2 (en) |
EP (1) | EP1348221B1 (en) |
JP (1) | JP4090032B2 (en) |
CN (1) | CN1270329C (en) |
CZ (1) | CZ298990B6 (en) |
DE (2) | DE10065016A1 (en) |
ES (1) | ES2298283T3 (en) |
WO (1) | WO2002052587A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4596890B2 (en) * | 2004-11-11 | 2010-12-15 | シナノケンシ株式会社 | Actuator |
JP4707443B2 (en) * | 2005-04-21 | 2011-06-22 | 株式会社タカコ | Electromagnetic solenoid, parts thereof and manufacturing method |
JP2007078048A (en) * | 2005-09-13 | 2007-03-29 | Aisin Seiki Co Ltd | Solenoid valve |
DE102008003210B4 (en) * | 2007-01-05 | 2015-06-11 | Hilite Germany Gmbh | Pressure valve, in particular with advantageous electrical contact management |
FR2991727B1 (en) * | 2012-06-08 | 2014-07-04 | Bosch Gmbh Robert | HIGH PRESSURE FUEL ACCUMULATOR PRESSURE CONTROL VALVE |
CN102979943B (en) * | 2012-12-04 | 2014-03-26 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Electromagnetic valve and manufacturing method thereof |
FR2999658A1 (en) * | 2012-12-18 | 2014-06-20 | Delphi Technologies Holding | HIGH PRESSURE VALVE |
EP3222914B1 (en) * | 2016-03-23 | 2019-01-09 | Orkli, S. Coop. | Gas safety valve |
CN109973456A (en) * | 2019-04-16 | 2019-07-05 | 武汉科技大学 | A kind of automatically controlled high pressure check valve of combined type |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3142038B2 (en) * | 1993-12-03 | 2001-03-07 | 株式会社デンソー | solenoid valve |
US6157277A (en) | 1997-12-09 | 2000-12-05 | Siemens Automotive Corporation | Electromagnetic actuator with improved lamination core-housing connection |
-
2000
- 2000-12-23 DE DE10065016A patent/DE10065016A1/en not_active Ceased
-
2001
- 2001-12-20 US US10/204,763 patent/US6674351B2/en not_active Expired - Fee Related
- 2001-12-20 CN CN01805536.2A patent/CN1270329C/en not_active Expired - Fee Related
- 2001-12-20 CZ CZ20022846A patent/CZ298990B6/en not_active IP Right Cessation
- 2001-12-20 JP JP2002553197A patent/JP4090032B2/en not_active Expired - Fee Related
- 2001-12-20 ES ES01990347T patent/ES2298283T3/en not_active Expired - Lifetime
- 2001-12-20 DE DE50113675T patent/DE50113675D1/en not_active Expired - Lifetime
- 2001-12-20 WO PCT/DE2001/004833 patent/WO2002052587A1/en active IP Right Grant
- 2001-12-20 EP EP01990347A patent/EP1348221B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2004516675A (en) | 2004-06-03 |
WO2002052587A1 (en) | 2002-07-04 |
ES2298283T3 (en) | 2008-05-16 |
DE10065016A1 (en) | 2002-07-04 |
US6674351B2 (en) | 2004-01-06 |
CZ20022846A3 (en) | 2003-04-16 |
CN1270329C (en) | 2006-08-16 |
DE50113675D1 (en) | 2008-04-10 |
JP4090032B2 (en) | 2008-05-28 |
CN1406384A (en) | 2003-03-26 |
CZ298990B6 (en) | 2008-03-26 |
US20030160671A1 (en) | 2003-08-28 |
EP1348221A1 (en) | 2003-10-01 |
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