EP1348221B1 - Elektromagnet mit magnetanker - Google Patents

Elektromagnet mit magnetanker Download PDF

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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
Application number
EP01990347A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1348221A1 (de
Inventor
Hermann Koch-Groeber
Rainer Stoehr
Michele De Cosmo
Nicola Pacucci
Petr Vosahlo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1348221A1 publication Critical patent/EP1348221A1/de
Application granted granted Critical
Publication of EP1348221B1 publication Critical patent/EP1348221B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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.

Landscapes

  • 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)
  • Electromagnets (AREA)
  • Fuel-Injection Apparatus (AREA)
EP01990347A 2000-12-23 2001-12-20 Elektromagnet mit magnetanker Expired - Lifetime EP1348221B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10065016A DE10065016A1 (de) 2000-12-23 2000-12-23 Elektromagnet mit Magnetanker
DE10065016 2000-12-23
PCT/DE2001/004833 WO2002052587A1 (de) 2000-12-23 2001-12-20 Elektromagnet mit magnetanker

Publications (2)

Publication Number Publication Date
EP1348221A1 EP1348221A1 (de) 2003-10-01
EP1348221B1 true EP1348221B1 (de) 2008-02-27

Family

ID=7668983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01990347A Expired - Lifetime EP1348221B1 (de) 2000-12-23 2001-12-20 Elektromagnet mit magnetanker

Country Status (8)

Country Link
US (1) US6674351B2 (cs)
EP (1) EP1348221B1 (cs)
JP (1) JP4090032B2 (cs)
CN (1) CN1270329C (cs)
CZ (1) CZ298990B6 (cs)
DE (2) DE10065016A1 (cs)
ES (1) ES2298283T3 (cs)
WO (1) WO2002052587A1 (cs)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4596890B2 (ja) * 2004-11-11 2010-12-15 シナノケンシ株式会社 アクチュエータ
JP4707443B2 (ja) * 2005-04-21 2011-06-22 株式会社タカコ 電磁ソレノイドおよびその部品ならびに製造方法
JP2007078048A (ja) * 2005-09-13 2007-03-29 Aisin Seiki Co Ltd 電磁弁
DE102008003210B4 (de) * 2007-01-05 2015-06-11 Hilite Germany Gmbh Druckventil, insbesondere mit vorteilhafter elektrischer Kontaktführung
FR2991727B1 (fr) * 2012-06-08 2014-07-04 Bosch Gmbh Robert Soupape de regulation de pression d'accumulateur haute pression de carburant
CN102979943B (zh) * 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 电磁阀及其制造方法
FR2999658A1 (fr) * 2012-12-18 2014-06-20 Delphi Technologies Holding Vanne haute pression
EP3222914B1 (en) * 2016-03-23 2019-01-09 Orkli, S. Coop. Gas safety valve
CN109973456A (zh) * 2019-04-16 2019-07-05 武汉科技大学 一种复合式电控高压单向阀
WO2025096978A1 (en) * 2023-11-02 2025-05-08 Shilla Industrial Co., Ltd. A non-binding solenoid system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3142038B2 (ja) * 1993-12-03 2001-03-07 株式会社デンソー 電磁弁
US6157277A (en) * 1997-12-09 2000-12-05 Siemens Automotive Corporation Electromagnetic actuator with improved lamination core-housing connection

Also Published As

Publication number Publication date
DE10065016A1 (de) 2002-07-04
CZ298990B6 (cs) 2008-03-26
CZ20022846A3 (cs) 2003-04-16
JP4090032B2 (ja) 2008-05-28
US20030160671A1 (en) 2003-08-28
CN1270329C (zh) 2006-08-16
DE50113675D1 (de) 2008-04-10
CN1406384A (zh) 2003-03-26
ES2298283T3 (es) 2008-05-16
JP2004516675A (ja) 2004-06-03
EP1348221A1 (de) 2003-10-01
US6674351B2 (en) 2004-01-06
WO2002052587A1 (de) 2002-07-04

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