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WO2009109369A1 - Mécanisme de réglage électromagnétique - Google Patents

Mécanisme de réglage électromagnétique Download PDF

Info

Publication number
WO2009109369A1
WO2009109369A1 PCT/EP2009/001527 EP2009001527W WO2009109369A1 WO 2009109369 A1 WO2009109369 A1 WO 2009109369A1 EP 2009001527 W EP2009001527 W EP 2009001527W WO 2009109369 A1 WO2009109369 A1 WO 2009109369A1
Authority
WO
WIPO (PCT)
Prior art keywords
armature
guide
unit
coating
sliding layer
Prior art date
Application number
PCT/EP2009/001527
Other languages
German (de)
English (en)
Inventor
Oliver Thode
Original Assignee
Eto Magnetic 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 Eto Magnetic Gmbh filed Critical Eto Magnetic Gmbh
Publication of WO2009109369A1 publication Critical patent/WO2009109369A1/fr

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
    • H01F7/16—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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F2007/163—Armatures entering the winding with axial bearing

Definitions

  • the present invention relates to an electromagnetic actuator according to the preamble of the main claim.
  • Such a device is generally known from the prior art and described approximately in DE 202 18 782 Ul of the applicant.
  • the anchor unit is in a typically as an armature guide tube or the like.
  • Unit moves as anchor guide, wherein such an armature guide tube either (by deep drawing or the like. Manufacturing operations) is made of a metal sheet or an anchor guide by drilling, milling or the like. Machining is machined from material.
  • the cooperating with the armature guide armature is formed in an otherwise known manner for electromagnetic interaction with a coil unit or the like., Which is received stationary in a housing of the electromagnetic actuator.
  • an armature guide tube can be used as a guide surface for the armature unit due to the drawing process and without (typically costly and expensive) post-processing to realize a roughness of at best 5 microns to 7 microns.
  • an armature guide tube is the critical life-limiting element with regard to the valve life (in this case tribological wear).
  • the manufacturing or production effort necessary for producing a rubbing-reducing surface of the friction partners is to be reduced and / or an alternative to the anchor coating is to be created.
  • the armature guide has on its guide surface a coating in the form of a sliding layer which has a coating material which differs from the material of the armature guide. tion and optimized in particular with regard to favorable friction or wear properties in cooperation with the anchor unit.
  • a sliding layer is solid in the applied and ready-to-use production state (ie not liquid, pasty or the like) and adheres inextricably to the anchor guide and it plays the surface roughness of the uncoated armature guide tube only a minor role.
  • the sliding layer according to the invention is applied in the form of a lubricating varnish to a thin sliding layer which is favorable for further development (thicknesses in the range between 5 ⁇ m and 50 ⁇ m are preferred on an underlying application surface of the Anchor guide) to bring about advantageous are further education areas between 15 microns and 35 microns.
  • Alternative ways of applying the sliding layer according to the invention may provide for the application of the coating material in pasty or gaseous state.
  • it is advantageous to apply the sliding layer according to the invention after the armature guide is in its final form during the production process that is to say, for example, after deep drawing from a sheet metal blank).
  • the service life of units realized by means of the electromagnetic actuating device according to the invention can be markedly increased, the procedure according to the invention combining in a surprisingly simple and elegant manner superior friction reduction and wear-reducing properties with simple, mass-production-suitable manufacturability.
  • the present invention is in principle suitable for any electromagnetic actuators, nevertheless, with regard to the conditions of use and environmental conditions, a use of the invention for switching or setting a valve, in particular hydraulic or pneumatic valve, more preferably in a motor vehicle environment, as particularly preferred. Further advantages and features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings; these show in:
  • FIG. 1 shows a longitudinal section through the electromagnetic actuator according to a first preferred embodiment of the invention
  • FIG. 2 shows a detailed view of the detail II in FIG. 1.
  • the longitudinal sectional view of the first embodiment of Fig. 1 shows - in principle - simplified form an electromagnetic actuator for actuating a downstream unit by means of a control section 10 of a plunger 12 which moves as an extension of an armature unit 14 of this in the axial direction of the device and by engaging in a (not shown in the figures) adjusting partners on the adjusting section 10 actuates this.
  • the armature unit 14 (suitably provided, for example, with a permanent magnet unit not shown in greater detail) acts together with a stationary coil unit 16, which is provided in a housing 18 and via a plug section 20 provided on the end (cylindrical) housing 18 is supplied with electrical energy.
  • the plug portion has (not shown) for this purpose suitable plug contacts, which are encapsulated by a plastic material and thus form the unit shown in Figure 1.
  • the electrical connection to the coil unit 16 is effected by (not shown in detail) contact lines.
  • the seal to the cylindrical housing 18 occupies an O-ring 22. Further held in the housing 18 is at one end a yoke ring 24 as an element of the housing 18 and armature 14 formed magnetic circuit, by means of a punctiform or annular bead (Einsickung) 26 of the yoke ring 24 in the housing, the other end limited by the coil unit 16 held is.
  • the housing has a core 28 which closes the magnetic circuit at the plunger-side end; in a core bore 38 as a tappet guide the plunger 12 is guided.
  • an armature guide tube 30 which is closed in the manner of a socket to the connector section 20 is finally provided which guides the armature unit 14 on its hollow cylindrical inner surface offering.
  • the armature guide tube 30, on its side facing the armature unit 14 has a coating 32 made of PTFE realized by means of a lubricating varnish ,
  • the coating 32 applied in liquid form and subsequently thermally cured or air-dried, has a thickness of 20 ⁇ m and interacts directly with the outer surface of the armature unit 14 rolled in the exemplary embodiment described as friction / movement partner.
  • FIG. 2 additionally shows, adjacent to the armature guide tube, in the left-hand area a section of the coil unit 16, namely a winding section 36 which is held in an otherwise known manner on a coil carrier section 34 (realized for example from plastic).
  • the present invention is not limited to the above-described embodiment. Thus, it is particularly favorable and within the scope of further exemplary embodiments to provide the materials PTFE and / or MoS 2 as materials for realizing the coating 32. It is also beneficial in the context of the invention to set the effective thickness in the fabricated state of the layer 32 to a range between 15 .mu.m and 35 .mu.m, the advantageous effects of the invention are also achieved when the thickness is less, for example 5 .mu.m (and insofar the On the other hand, even coating thicknesses of up to 50 ⁇ m or 60 ⁇ m appear technically meaningful.
  • the armature guide tube is passed through, for example with a spray lance, and the lubricating lacquer is uniformly applied to the guide surface of the armature guide tube. Areas that need to remain metallically bare for downstream processes (such as welding) can be adequately covered during painting.
  • the representation of the embodiment of FIG. 1, 2 is a generic electromagnetic actuator, which is to indicate that the present invention is applicable to any application in principle. Nevertheless, it has been found in the practical implementation to be particularly favorable and advantageous to use the present invention for implementing electromagnetically actuated valves, in particular as of pneumatic valves.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)

Abstract

L’invention concerne un mécanisme de réglage électromagnétique pourvu d’un guidage d’armature (30) prévu de manière stationnaire dans un boîtier (18) et d’une unité d’armature (14) mobile de manière électromagnétique et guidée dans le guidage d’armature. Le guidage d’armature comporte, sur une surface de guidage agissant conjointement avec une surface active de l’unité d’armature, une couche de glissement (32) qui est réalisée par recouvrement au moyen d’un matériau de recouvrement différent d’un matériau de la surface de guidage, en particulier une laque de glissement, qui réduit le frottement entre la surface de guidage à l’état non recouvert et la surface active, et qui est fixe et solidairement adhérente au guidage d’armature.
PCT/EP2009/001527 2008-03-05 2009-03-04 Mécanisme de réglage électromagnétique WO2009109369A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008003137.0 2008-03-05
DE200820003137 DE202008003137U1 (de) 2008-03-05 2008-03-05 Elektromagnetische Stellvorrichtung

Publications (1)

Publication Number Publication Date
WO2009109369A1 true WO2009109369A1 (fr) 2009-09-11

Family

ID=40668164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/001527 WO2009109369A1 (fr) 2008-03-05 2009-03-04 Mécanisme de réglage électromagnétique

Country Status (2)

Country Link
DE (1) DE202008003137U1 (fr)
WO (1) WO2009109369A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024110481A1 (fr) * 2022-11-23 2024-05-30 Eto Magnetic Gmbh Armature magnétique, actionneur électromagnétique, et procédé de fabrication de l'armature magnétique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012101634A1 (de) 2012-02-28 2013-08-29 Eto Magnetic Gmbh Elektromagnetische Stellvorrichtung und Verwendung einer solchen
DE102013218939A1 (de) 2013-09-20 2015-03-26 Robert Bosch Gmbh Magnetbaugruppe für einen Magnetaktor oder ein Magnetventil
DE102016210091A1 (de) * 2016-06-08 2017-12-14 Festo Ag & Co. Kg Elektromagnetische Betätigungseinrichtung mit Ankerführungsanordnung
DE102016211679A1 (de) * 2016-06-29 2018-01-04 Robert Bosch Gmbh Elektromagnetisch betätigbares Einlassventil und Hochdruckpumpe mit Einlassventil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3502730A1 (de) * 1985-01-28 1986-07-31 Rausch & Pausch, 8672 Selb Magnetventil
EP0892201A2 (fr) * 1997-07-15 1999-01-20 WABCO GmbH Dispositif de choc entre deux pièces mobiles l'une par rapport à l'autre, par exemple un dispositif de soupape
US20020101314A1 (en) * 2001-01-26 2002-08-01 Kenichi Oishi Electromagnetic driving device and flow rate controlling apparatus employing the same driving device
DE102005054132A1 (de) * 2005-11-14 2007-05-16 Bosch Gmbh Robert Tribosystem und Ventil zum Steuern eines Fluids mit derartigem Tribosystem

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19848919A1 (de) 1998-10-23 2000-04-27 Elektroteile Gmbh Magnetventil
DE20218782U1 (de) 2002-12-03 2003-04-10 ETO MAGNETIC KG, 78333 Stockach Elektromagnetische Stellvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3502730A1 (de) * 1985-01-28 1986-07-31 Rausch & Pausch, 8672 Selb Magnetventil
EP0892201A2 (fr) * 1997-07-15 1999-01-20 WABCO GmbH Dispositif de choc entre deux pièces mobiles l'une par rapport à l'autre, par exemple un dispositif de soupape
US20020101314A1 (en) * 2001-01-26 2002-08-01 Kenichi Oishi Electromagnetic driving device and flow rate controlling apparatus employing the same driving device
DE102005054132A1 (de) * 2005-11-14 2007-05-16 Bosch Gmbh Robert Tribosystem und Ventil zum Steuern eines Fluids mit derartigem Tribosystem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024110481A1 (fr) * 2022-11-23 2024-05-30 Eto Magnetic Gmbh Armature magnétique, actionneur électromagnétique, et procédé de fabrication de l'armature magnétique

Also Published As

Publication number Publication date
DE202008003137U1 (de) 2009-07-30

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