EP2828864B1 - Elektromagnetische stellvorrichtung - Google Patents

Elektromagnetische stellvorrichtung Download PDF

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Publication number
EP2828864B1
EP2828864B1 EP14720053.9A EP14720053A EP2828864B1 EP 2828864 B1 EP2828864 B1 EP 2828864B1 EP 14720053 A EP14720053 A EP 14720053A EP 2828864 B1 EP2828864 B1 EP 2828864B1
Authority
EP
European Patent Office
Prior art keywords
connection
housing
connection contact
connecting means
end section
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.)
Not-in-force
Application number
EP14720053.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2828864A1 (de
Inventor
Thomas Golz
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.)
ETO Magnetic GmbH
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 EP2828864A1 publication Critical patent/EP2828864A1/de
Application granted granted Critical
Publication of EP2828864B1 publication Critical patent/EP2828864B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
    • 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
    • H01F2007/062—Details of terminals or connectors for electromagnets

Definitions

  • the present invention relates to an electromagnetic actuator according to the preamble of the main claim.
  • electromagnetic actuators which - generic - about in the DE 102 40 774 A1
  • the applicant is described, are used for a variety of applications, in particular, the use as an actuator for a camshaft adjusting device of an automotive engine is a preferred application.
  • Here acts approximately (typically plunger-like design) anchor unit with an end-side engaging portion with an associated adjusting groove or the like. Stellpartner the internal combustion engine together.
  • the geometrical dimensions of generic electromagnetic actuators can not be minimized as a matter of principle, for example, the electromagnetic actuation forces of such a device to be achieved determine predetermined dynamic properties (positioning times) or the like. Boundary conditions necessary minimum dimensions of the participating electromagnetic components.
  • connection contacts assigned to them project radially (ie transversely to a respective axial direction of movement of the anchor units) with the production-related purpose, a respective winding associated terminal contacts with connecting structures (connecting means) in the respective housing electrically and mechanically connect, so that then can be done via this connection means a coupling to a typically provided on the edge side of the housing connector portion.
  • this connector portion (which may be multi-pole depending on the purpose, bush-like or otherwise suitable manner) is then carried out the coupling by means of conventional control wires to a suitable control electronics.
  • a corresponding welding gun or the like Element of an automatic welding machine overlaps for this purpose the partners to be connected and produces in a known manner a welded joint.
  • a disadvantage of this (otherwise proven and effective) method is that an effective diameter of the adjusting device is increased by the lateral (radial) protruding of the connection contact together with the associated connection partner of the electrical connection means; so yes, from the radial direction, there must be sufficient space for engaging the welding device for producing the welded joint.
  • This in turn is disadvantageous for the described Kompaktheitersberichtisse, in particular concerning a very close and compact density of adjacent or adjacent to be provided adjusting devices.
  • a minimum diameter i.e., a housing extension transverse to the axial direction of movement of the armature unit
  • the coil carrier associated terminal contact (which in turn is electrically and mechanically connected to the coil wire of the winding) formed in an extension direction which is parallel to the axial direction of movement of the armature.
  • Parallel to this terminal contact (and preferably aligned flat on this) a flat end portion of the metallic connecting means is provided so that by a radial or lateral attack of welding means or the like. Connecting units then between these conductive sections a permanent mechanical and electrical connection can be made.
  • this connection point does not cause any radial or cross-section Expansion of the electromagnetic actuator or its diameter.
  • this connection point between the terminal contact and the flat end section of the connecting means remains within the maximum diameter determined by the (typically hollow-cylindrical) housing and the coil carrier accommodated therein. Only in the region of the rear housing end wall does the adjusting device be extended, which however is less problematic in a compact space conditions, as an enlarged diameter.
  • connection thus provided for example by means of soldering or welding, is additionally space-saving to be treated after the connection process by bending or bending, in such a way that the connection pair, which extends axially parallel before and during the connection process, after the connection the bending or bending is brought into a preferably parallel and to the associated housing end wall approximate or adjacent position.
  • connection pair which extends axially parallel before and during the connection process
  • the bending or bending is brought into a preferably parallel and to the associated housing end wall approximate or adjacent position.
  • the terminal contact additionally or alternatively also at least the end portion of the metallic connecting means (again more preferably also the entire metallic connecting means within the actuator housing) realized as a stamped part. Not only allow such stampings a simple and reproducible manufacturability, also an automated welding or the like. Connection process simplified.
  • connection partners with a suitable bending relief (such as a specific material allowance, a shaped arc area or the like .) Mistake. Accordingly, an advantageous kinking would then no material crack or the like. possible impairment in finishing.
  • connection partners While it is also preferred within the scope of the invention to leave the connection partners, terminal contact and end section of the metallic connection means, before or during the connection process (welding or soldering) axially parallel out of the housing, it is nevertheless encompassed by the present invention, to provide such an arrangement also within the housing and then access via a welding gun or the like. through a corresponding end opening, recess or the like. to enable.
  • the tab-like or tongue-like formed contact preferably realized as a stamped part, integrated on or in the bobbin; typically by injecting the metallic contact material into a plastic used for the bobbin.
  • This can then be in manufacturing technology favorable way already set the position of the terminal contact according to the invention, namely such that, based on a coil carrier extending coaxially to the armature, the connection contact so mounted projecting not radially but end parallel to the axis of this bobbin.
  • Corresponding mechanical loads would then be transmitted from the terminal contact to the coil carrier, a winding wire suitably connected to the connection contact would nevertheless remain mechanically unloaded in any state, so that from this point of view a highly reliable and faultless mounting of the present invention is made possible.
  • the associated housing end region by a lid, a cap or the like. to cover;
  • this also has a correspondingly low axial dimensions and does not affect a radial diameter of the device.
  • the present invention provides, in a surprisingly simple and constructively elegant way, the possibility of making a radial diameter of generic electromagnetic actuators as compact as possible, and in particular previously required shell-radially provided electrical connection points for coupling the winding to the housing plug portion for further external Shift contact from the effective diameter side area.
  • the seemingly necessary additional effort of a bending or bending process which is provided according to the training and preferred, however, more than weighs the achieved dimensional advantages in practical use.
  • the inventive electromagnetic actuator as a camshaft adjusting device for an internal combustion engine or, in general, as an adjustment for an internal combustion engine functionality, especially in one Motor vehicle context, is used, the advantages of the invention come into play, in particular, that a plurality of such inventive electromagnetic actuators adjacent to each other, more preferably, each coat side touching, mounted.
  • a camshaft which is made possible by a pair of known camshaft adjusting devices, along an axial direction even smaller in space by means of the compact radial dimensions made possible according to the invention, or even better in a tight installation space.
  • the Fig. 1 illustrates in the schematic side view of the electromagnetic actuator according to a first preferred embodiment.
  • a slightly flared, radially symmetrically about a symmetry and movement axis 10 extending housing 12 is a (only shown with an end-side tappet portion 14) armature unit movably guided along the longitudinal movement axis 10.
  • the ram unit 14 is formed with the end-side engaging portion shown for cooperating with a positioning partner (not shown).
  • This adjusting partner (not part of the invention) is in the illustrated embodiment, an adjusting groove of a (not shown) device for adjusting the camshaft of an internal combustion engine for automotive technology.
  • a contact or plug section 18 is formed on the opposite end face 16, typically by injection molding onto the front side (from a front side) Plastic material existing) housing shell, which then cooperates in otherwise known manner, this connector portion 18 with appropriately adapted, not shown connection cables for connection to upstream control devices.
  • a coil unit is provided for moving the armature unit 14, which has a coil 22 formed on a coil support 20 and is held stationary in the housing 12.
  • housing sections shown hatched are connected to the bobbin 20 by overmoulding or similar mass-production-suitable production methods.
  • the (at least one) winding 22 is realized by a winding wire 24 (FIG. Fig. 2 ), which is guided on the front side of the hollow cylindrical bobbin 20 and is permanently connected to a coil terminal contact 26, which (flat and tab-like) is made of a suitably punched metal material and (again by injection or encapsulation or by shooting in an existing molded article) in the in Fig. 2 shown manner protrudes from an end-side flange portion 28 of the bobbin 20.
  • the coil terminal contact 26 thus extends parallel to the longitudinal axis 10 and protrudes, like the Fig. 2 reveals in the still unconnected (unwelded) state, from the front 16 back out.
  • the coil terminal contact 26 a flat end portion 30 associated with a turn made as a stamped part metallic connector, which (contacted by not shown in detail wiring) an electrical terminal contact 32 in the connector portion 18 contacted.
  • Fig. 2 Like the longitudinal section view of Fig. 2 illustrates, are in the unwelded state, the contacts 26, 30 with their flat sides facing each other opposite each other and project rearwardly out of the end face 16 of the housing 12; Accordingly, in a subsequent joining step of these ends (shown here is a schematic weld bead or a weld boss 34) by lateral (transverse or radial) attacking by means of welding tongs or the like welding unit along the direction of the double arrow 36 welding the assemblies 26, 30, with the aim of producing an insoluble, mechanically stable and electrically conductive connection.
  • a schematic weld bead or a weld boss 34 by lateral (transverse or radial) attacking by means of welding tongs or the like welding unit along the direction of the double arrow 36 welding the assemblies 26, 30, with the aim of producing an insoluble, mechanically stable and electrically conductive connection.
  • Fig. 2 advantageously frontally and thus without the requirement of a radial expansion made welded joint between the connection partners 26, 30 by bending (bending or buckling) in the direction of the rear housing end face 16 to deform.
  • a correspondingly deformed state is shown in the sectional view of the Fig. 3 which in this respect the section III in Fig.
  • the present invention is not limited to the specific embodiment shown; neither is the concrete flat form of realization of the contact partners necessary, nor does it have to be in the in Fig. 2 shown direction of the arrow (or at all) a kinking or bending after a successful connection are performed. Also, the skilled artisan will suitably design other elements and assemblies of the invention according to a particular application requirement.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
EP14720053.9A 2013-05-08 2014-04-03 Elektromagnetische stellvorrichtung Not-in-force EP2828864B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202013102019.2U DE202013102019U1 (de) 2013-05-08 2013-05-08 Elektromagnetische Stellvorrichtung
PCT/EP2014/056759 WO2014180607A1 (de) 2013-05-08 2014-04-03 Elektromagnetische stellvorrichtung

Publications (2)

Publication Number Publication Date
EP2828864A1 EP2828864A1 (de) 2015-01-28
EP2828864B1 true EP2828864B1 (de) 2016-01-06

Family

ID=50624546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14720053.9A Not-in-force EP2828864B1 (de) 2013-05-08 2014-04-03 Elektromagnetische stellvorrichtung

Country Status (5)

Country Link
US (1) US9761363B2 (zh)
EP (1) EP2828864B1 (zh)
CN (1) CN105190796B (zh)
DE (1) DE202013102019U1 (zh)
WO (1) WO2014180607A1 (zh)

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683785A (en) * 1950-02-03 1954-07-13 Price Electric Corp Electromagnetic relay
US3493903A (en) * 1968-08-05 1970-02-03 Westinghouse Air Brake Co Electromagnetic relay with a suspended armature
DE7115572U (de) * 1971-04-22 1972-10-19 Bach & Co Elektromagnetisches Relais
JPS538901B2 (zh) * 1971-09-01 1978-04-01
US4893102A (en) * 1987-02-19 1990-01-09 Westinghouse Electric Corp. Electromagnetic contactor with energy balanced closing system
EP0372554A3 (en) * 1988-12-09 1992-04-08 OMRON Corporation Electromagnetic relay
JPH0469836U (zh) * 1990-10-26 1992-06-19
DE19727991C1 (de) * 1997-07-01 1998-11-19 Schrack Components Ag Elektromagnetisches Relais
EP0982746B1 (en) * 1998-08-26 2007-05-09 Matsushita Electric Works, Ltd. Single-pole relay switch
JP4212248B2 (ja) * 2001-02-09 2009-01-21 富士通コンポーネント株式会社 電磁継電器
DE20114466U1 (de) 2001-09-01 2002-01-03 Eto Magnetic Kg Elektromagnetische Stellvorrichtung
JP3985628B2 (ja) * 2002-08-09 2007-10-03 オムロン株式会社 開閉装置
DE102006024841B4 (de) 2006-05-24 2012-04-05 Eto Magnetic Gmbh Elktromagnetische Stellvorrichtung
RU2439737C2 (ru) * 2006-08-21 2012-01-10 Арколин Лтд. Выключатель высокого напряжения
DE102007028600B4 (de) 2007-06-19 2011-06-22 ETO MAGNETIC GmbH, 78333 Elektromagnetische Stellvorrichtung
US7710224B2 (en) * 2007-08-01 2010-05-04 Clodi, L.L.C. Electromagnetic relay assembly
JP5163318B2 (ja) * 2008-06-30 2013-03-13 オムロン株式会社 電磁石装置
DE202008013654U1 (de) 2008-10-17 2010-03-04 Eto Magnetic Gmbh Elektromagnetische Stellvorrichtung
TW201019364A (en) * 2008-11-12 2010-05-16 Good Sky Electric Co Ltd An electromagnetic relay
DE202009006940U1 (de) 2009-04-16 2010-09-02 Eto Magnetic Gmbh Elektromagnetische Nockenwellen-Verstellvorrichtung
JP5601929B2 (ja) 2010-08-06 2014-10-08 日立建機株式会社 電磁式駆動ユニット
JP5085754B2 (ja) * 2011-03-14 2012-11-28 オムロン株式会社 電磁継電器
JP6056264B2 (ja) * 2012-08-24 2017-01-11 オムロン株式会社 電磁石装置およびそれを用いた電磁継電器
JP6263904B2 (ja) * 2013-08-23 2018-01-24 オムロン株式会社 電磁石装置およびこれを用いた電磁継電器

Also Published As

Publication number Publication date
DE202013102019U1 (de) 2014-08-11
CN105190796A (zh) 2015-12-23
WO2014180607A1 (de) 2014-11-13
EP2828864A1 (de) 2015-01-28
CN105190796B (zh) 2017-05-17
US20160099096A1 (en) 2016-04-07
US9761363B2 (en) 2017-09-12

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