EP1032941A1 - Relais miniaturise a bobine plate - Google Patents

Relais miniaturise a bobine plate

Info

Publication number
EP1032941A1
EP1032941A1 EP98951151A EP98951151A EP1032941A1 EP 1032941 A1 EP1032941 A1 EP 1032941A1 EP 98951151 A EP98951151 A EP 98951151A EP 98951151 A EP98951151 A EP 98951151A EP 1032941 A1 EP1032941 A1 EP 1032941A1
Authority
EP
European Patent Office
Prior art keywords
armature
microrelay
flat
permanent magnet
microrelay according
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.)
Granted
Application number
EP98951151A
Other languages
German (de)
English (en)
Other versions
EP1032941B1 (fr
Inventor
Hans Diem
Werner Johler
Werner Kälin
Urs Korrodi
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.)
Axicom AG
Original Assignee
Axicom AG
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 Axicom AG filed Critical Axicom AG
Publication of EP1032941A1 publication Critical patent/EP1032941A1/fr
Application granted granted Critical
Publication of EP1032941B1 publication Critical patent/EP1032941B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/005—Details of electromagnetic relays using micromechanics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/005—Details of electromagnetic relays using micromechanics
    • H01H2050/007—Relays of the polarised type, e.g. the MEMS relay beam having a preferential magnetisation direction

Definitions

  • the present invention relates to a microrelay, consisting of a magnetic coil system, a contact carrier body with contacts arranged therein, a permanent magnet for the magnetic yoke and an armature which can be tilted about its central axis between two positions and a changeover spring system.
  • a large number of relays are known, the coils of which are wound.
  • Printed circuit board relays are known from EF) A1 0 373 109, for example, a wound coil via a permanent magnet causing an armature to tilt over an induced magnetic flux, as a result of which switchover contact springs are actuated.
  • the resulting downward limited overall height is still disadvantageous here, in particular due to the space requirement of the wound coil, which limits the applicability of such relays.
  • the relatively high manufacturing costs of the wound coil and the complexity also prove to be disadvantageous.
  • the object of the invention is to provide a microrelay of the type described in the introduction, which has a minimal overall height, contains only a few components and can be produced inexpensively in automated production.
  • the magnetic coil system is designed as a flat coil system in the form of a microstructure embodied on a flux plate and is formed at least from a micro flat coil.
  • the flat coil system preferably has two individually arranged microfiche.
  • the invention is explained in more detail with reference to exemplary embodiments shown in the drawing, which are also the subject of dependent claims. They show schematically:
  • FIG. 1 shows an exploded view of the individual parts of the relay
  • FIG. 2 shows an inside view of the long side of the main elements of the relay with the contact carrier body removed
  • FIG. 3 shows an embodiment analogous to that of FIG. 2
  • FIG. 4 shows an embodiment analogously to that of FIG. 3
  • FIG. 5 an embodiment analogous to that of FIG. 2
  • FIG. 6 an exemplary embodiment! analogous to that of FIG. 5
  • FIG. 7 an embodiment analogous to that of FIG. 6,
  • FIG. 8 an embodiment of the drive of the microrelay with a centrally arranged flat coil
  • FIG. 9 the transmission of the tilting movement of the armature to the changeover springs.
  • FIG. 2 shows the individual assemblies of the micro relay in an exploded view, namely a flat coil system 1, a contact carrier body 2 and an armature and switchover spring holder 3.
  • the flat coil system 1 consists of a flux plate 11 and two microflat coils 12 and 13 applied thereon, which are generated in a manner known per se by means of a suitable etching process from the field of microstructure technology and are fed via the connecting lugs 26, 26 '.
  • the flat coil system 1 designed as a microstructure serves as a drive for the tilting movement of the armature 31 for actuating the changeover springs 33 and 34.
  • the contact carrier body 2 is a frame-shaped plastic injection-molded part, in which six connection lugs are held by injection molding.
  • the connecting lugs 27, 28, 29 and 27 ', 28', 29 'for the changeover contacts are provided on each of the long sides of the contact carrier body 2.
  • An armature 31 designed as a prismatic rod is arranged in the armature and switchover spring holder 3, which armature can also be designed as a permanent magnet 32.
  • the connections 35 and 36 are welded to the positions 40 and 41.
  • the armature 31 actuates the changeover springs 33 and 34 as a result of its tilting movement, which in turn in an appropriate position closes the working contacts 37, 37 'and the normally closed contacts 38, 38'.
  • FIG. 2 shows an inside view of the long side of the relay according to the invention, the corresponding side walls of the contact carrier body being cut away.
  • the magnetic flux i ⁇ induced by the excited microflat coil 12 counteracts the magnetic flux ⁇ M caused by the permanent magnet 32 '.
  • the magnetic flux J £ i induced by the excited micro flat coil 13 supports the magnetic flux i caused by the permanent magnet 32 ', as a result of which the attraction force of the partial magnet on the side of the air gap 14 becomes greater than the holding force of the partial magnet on the other side, so that the as Armature 31 'designed permanent magnet 32' tilts over its edge 18 or its arcuate contour 18 'into the working position.
  • the movement is transmitted in a known manner to the changeover springs 33, 34, whereby the switching operation of the microrelay is triggered.
  • the resulting fluxes must be set in such a way that the tilting movement is triggered with the aid of the supporting spring action of the changeover springs 33, 34. This can be done by swapping the polarity of the power source.
  • Fig. 3 shows an embodiment in which the permanent magnet 32 in the armature 31 induces the magnetic fluxes £ M ⁇ and $ HZ with different flow directions.
  • the direction of flow of the micro-coil foot i £ must be reversed, for example in a corresponding manner as described in the section above.
  • FIG. 5 shows an exemplary embodiment which, in contrast to FIG. 2, has an armature 31 ′ which is designed as a 2-pole permanent magnet 32 ′′.
  • the magnetically conductive central core 17 increases the magnetic flux i ⁇ .
  • the magnetic foot J M has approximately twice the magnitude of the magnetic flux _ E ⁇ . Therefore, the flux f M is shown as a double line.
  • f E ⁇ subtracts itself to f M
  • ⁇ E ⁇ adds to f M , which in a corresponding manner, as explained above, causes a tilting movement of the as permanent magnet trained anchor 31 'is triggered.
  • FIG. 6 shows an exemplary embodiment based on FIG. 5 with a magnetically non-conductive rotary support 17 'instead of a magnetically conductive central core.
  • FIG. 7 shows an exemplary embodiment according to FIG. 6, with the difference that the axis of rotation 18 '"is located at a greater distance from the flow plate 11.
  • the bearing 19 of the axis of rotation 18'" can be provided on the contact carrier body 2.
  • FIG. 8 shows an exemplary embodiment with a single microflat coil 12 'arranged around a magnetically conductive central core 17. The magnetic fluxes ⁇ and £ M subtract, the magnetic fluxes J E2 ( and J M add up, which in turn enables the armature 31 'designed as a permanent magnet 32 "to tilt in the manner already described.
  • the flat coil system designed as a microstructure serves as a drive for the tilting movement of the armature 31.
  • the tilting movement is triggered by a corresponding interaction of the magnetic fluxes i Ei , i M ⁇ % , i n% l ⁇ ⁇ , ⁇ n ⁇ as explained in detail above .
  • the armature actuates the changeover springs 33 and 34, which in turn, in the appropriate position, close the working contacts 37, 37 'and the normally closed contacts 38, 38'.
  • the advantages of the subject matter of the invention are that low overall heights can be achieved. It is essential that the flat coil system designed according to the invention permits miniaturization of the relay. Thanks to the layered construction, the contacts can be optimally disentangled from the coil. In addition, the production of the flat microcoils is particularly cost-effective due to the use of modern galvanic processes in a manner known to those skilled in the art. A very high degree of utilization can be achieved by reducing the conductor insulation. Compared to conventional wound coils, the process steps in production can be massively reduced. For example, soldering of the coil ends and the associated use of fluxes, which can damage the microclimate of the relay, are also eliminated. In addition, the use of low-cost connection technologies, e.g. bonding, possible.
  • the insulation material of the conventional insulation of the winding wires also has a negative impact on the microclimate.
  • a further advantage of the present invention is accordingly the elimination of this contact-damaging insulation material.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Micromachines (AREA)

Abstract

L'invention a pour objet un micro-relais comprenant un système à bobine magnétique, un élément porte-contacts (2), à contacts disposés à l'intérieur, un aimant permanent (32) et une armature (31) susceptible de basculer, autour de son axe, entre deux positions, ainsi qu'un système inverseur sollicité élastiquement, caractérisé en ce que le système à bobine magnétique (1) est réalisé en tant que système à bobine plate (1) sous la forme d'une micro-structure agencée sur une plaque de flux (11) et est constitué par au moins une micro-bobine plate (12'). L'armature pivotante (31') elle-même peut être réalisée sous la forme d'un aimant permanent tripolaire (32') ou dipolaire (32"). Le micro-relais selon l'invention, d'un encombrement en hauteur minimum, peut être fabriqué économiquement en production automatisée.
EP98951151A 1997-11-20 1998-11-06 Relais miniaturise a bobine plate Expired - Lifetime EP1032941B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH02676/97A CH692829A5 (de) 1997-11-20 1997-11-20 Mikrorelais als miniaturisiertes Flachspul-Relais.
CH267697 1997-11-20
PCT/CH1998/000475 WO1999027548A1 (fr) 1997-11-20 1998-11-06 Relais miniaturise a bobine plate

Publications (2)

Publication Number Publication Date
EP1032941A1 true EP1032941A1 (fr) 2000-09-06
EP1032941B1 EP1032941B1 (fr) 2002-05-08

Family

ID=4239086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98951151A Expired - Lifetime EP1032941B1 (fr) 1997-11-20 1998-11-06 Relais miniaturise a bobine plate

Country Status (6)

Country Link
US (1) US6492887B1 (fr)
EP (1) EP1032941B1 (fr)
AU (1) AU9733298A (fr)
CH (1) CH692829A5 (fr)
DE (1) DE59804089D1 (fr)
WO (1) WO1999027548A1 (fr)

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Publication number Priority date Publication date Assignee Title
US6496612B1 (en) 1999-09-23 2002-12-17 Arizona State University Electronically latching micro-magnetic switches and method of operating same
US7027682B2 (en) 1999-09-23 2006-04-11 Arizona State University Optical MEMS switching array with embedded beam-confining channels and method of operating same
US6469602B2 (en) 1999-09-23 2002-10-22 Arizona State University Electronically switching latching micro-magnetic relay and method of operating same
DK1352408T3 (da) 2001-01-18 2007-07-09 Univ Arizona Mirko-magnetisk låseomskifter med mindre begrænset udretningsbehov
AU2002318143A1 (en) 2001-05-18 2002-12-03 Microlab, Inc. Apparatus utilizing latching micromagnetic switches
US6633158B1 (en) * 2001-09-17 2003-10-14 Jun Shen Micro magnetic proximity sensor apparatus and sensing method
US7301334B2 (en) * 2001-09-17 2007-11-27 Schneider Electric Industries Sas Micro magnetic proximity sensor system
US6836194B2 (en) 2001-12-21 2004-12-28 Magfusion, Inc. Components implemented using latching micro-magnetic switches
US20030169135A1 (en) 2001-12-21 2003-09-11 Jun Shen Latching micro-magnetic switch array
US20030179057A1 (en) 2002-01-08 2003-09-25 Jun Shen Packaging of a micro-magnetic switch with a patterned permanent magnet
US20030137374A1 (en) 2002-01-18 2003-07-24 Meichun Ruan Micro-Magnetic Latching switches with a three-dimensional solenoid coil
US20030222740A1 (en) 2002-03-18 2003-12-04 Microlab, Inc. Latching micro-magnetic switch with improved thermal reliability
JP2003331674A (ja) * 2002-05-14 2003-11-21 Konica Minolta Holdings Inc スイッチ及び画像形成装置
KR100547217B1 (ko) * 2002-07-31 2006-01-26 마츠시다 덴코 가부시키가이샤 마이크로 릴레이
US7266867B2 (en) 2002-09-18 2007-09-11 Schneider Electric Industries Sas Method for laminating electro-mechanical structures
US20040121505A1 (en) 2002-09-30 2004-06-24 Magfusion, Inc. Method for fabricating a gold contact on a microswitch
US7202765B2 (en) 2003-05-14 2007-04-10 Schneider Electric Industries Sas Latchable, magnetically actuated, ground plane-isolated radio frequency microswitch
US7215229B2 (en) 2003-09-17 2007-05-08 Schneider Electric Industries Sas Laminated relays with multiple flexible contacts
US20050083157A1 (en) 2003-10-15 2005-04-21 Magfusion, Inc. Micro magnetic latching switches and methods of making same
US7342473B2 (en) 2004-04-07 2008-03-11 Schneider Electric Industries Sas Method and apparatus for reducing cantilever stress in magnetically actuated relays
US7482899B2 (en) * 2005-10-02 2009-01-27 Jun Shen Electromechanical latching relay and method of operating same
US8174343B2 (en) * 2006-09-24 2012-05-08 Magvention (Suzhou) Ltd. Electromechanical relay and method of making same
US8068002B2 (en) * 2008-04-22 2011-11-29 Magvention (Suzhou), Ltd. Coupled electromechanical relay and method of operating same
US8143978B2 (en) * 2009-02-23 2012-03-27 Magvention (Suzhou), Ltd. Electromechanical relay and method of operating same
US8188817B2 (en) * 2009-03-11 2012-05-29 Magvention (Suzhou) Ltd. Electromechanical relay and method of making same
US8159320B2 (en) 2009-09-14 2012-04-17 Meichun Ruan Latching micro-magnetic relay and method of operating same
US8378766B2 (en) * 2011-02-03 2013-02-19 National Semiconductor Corporation MEMS relay and method of forming the MEMS relay
EP2761640B1 (fr) * 2011-09-30 2016-08-10 Telepath Networks, Inc. Structures de dispositifs de commutation intégrés multiples

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Publication number Priority date Publication date Assignee Title
JP2714736B2 (ja) * 1992-06-01 1998-02-16 シャープ株式会社 マイクロリレー
JP3465940B2 (ja) * 1993-12-20 2003-11-10 日本信号株式会社 プレーナー型電磁リレー及びその製造方法
US5531018A (en) 1993-12-20 1996-07-02 General Electric Company Method of micromachining electromagnetically actuated current switches with polyimide reinforcement seals, and switches produced thereby
FR2742917B1 (fr) 1995-12-22 1998-02-13 Suisse Electronique Microtech Dispositif miniature pour executer une fonction predeterminee, notamment microrelais
US6094116A (en) * 1996-08-01 2000-07-25 California Institute Of Technology Micro-electromechanical relays

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9927548A1 *

Also Published As

Publication number Publication date
DE59804089D1 (de) 2002-06-13
AU9733298A (en) 1999-06-15
EP1032941B1 (fr) 2002-05-08
CH692829A5 (de) 2002-11-15
US6492887B1 (en) 2002-12-10
WO1999027548A1 (fr) 1999-06-03

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