EP1032941B1 - Relais miniaturise a bobine plate - Google Patents

Relais miniaturise a bobine plate Download PDF

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Publication number
EP1032941B1
EP1032941B1 EP98951151A EP98951151A EP1032941B1 EP 1032941 B1 EP1032941 B1 EP 1032941B1 EP 98951151 A EP98951151 A EP 98951151A EP 98951151 A EP98951151 A EP 98951151A EP 1032941 B1 EP1032941 B1 EP 1032941B1
Authority
EP
European Patent Office
Prior art keywords
micro
flat
permanent magnet
relay according
rotor
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
EP98951151A
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German (de)
English (en)
Other versions
EP1032941A1 (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
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Axicom AG
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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

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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 magnetic inference and one around his Center axis between two positions tiltable anchor and one Changeover spring system, with the magnetic coil system in the form of a flat coil system a microstructure executed on a flow plate is formed and is formed from at least one microflat coil.
  • a large number of relays are known, the coils of which are wound.
  • circuit board relays are known, one being wound Coil over a permanent magnet an armature over an induced Magnetic flux causes a tilting movement, causing changeover contact springs be operated.
  • the resulting downward is still a disadvantage here limited overall height, especially due to the space requirement of the wound coil, which limits the applicability of such relays.
  • they prove to be relative high manufacturing costs of the wound coil and the complexity as well disadvantageous.
  • EP, A1 0685864 which forms the closest prior art, describes a flat coil relay, in which the force on a current-carrying conductor is used within a magnetic field.
  • the flow between the cylindrical Shaped permanent magnet takes place in the opposite direction, whereby the resulting total flow through the coil cross-sectional area is approximately zero.
  • the two magnetic fluxes run in opposite directions Direction.
  • EP, A1 0780858 further describes a miniaturized flat coil relay with two completely separate magnetic circles, which are separated by an elastic Switch rocker are connected in spring form. There always have to be two separate permanent magnets can be used.
  • the object of the invention is to provide a microrelay of the type described in the introduction to provide that has a minimal height, contains only a few components and can be produced inexpensively in automated production.
  • the armature can be swiveled around a central axis as a 3-pole Permanent magnet or is designed as a 2-pole permanent magnet.
  • the Permanent magnet positioned on flat cores in the micro flat coils are arranged.
  • the flat coil system preferably has two individually arranged micro flat coils on.
  • FIG. 1 shows the individual modules of the microrelay in an exploded view, namely a flat coil system 1, a contact carrier body 2 and an anchor and Switch spring holder 3.
  • the flat coil system 1 consists of a flow plate 11 and two on it applied micro flat coils 12 and 13, which by means of a suitable Etching process from the field of microstructure technology in a known manner Way generated and fed via the connection lugs 26, 26 '.
  • the designed as a microstructure flat coil system 1 serves as a drive for Tilting movement of the armature 31 to actuate 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, close the working contacts 37, 37 'and the normally closed contacts 38, 38' in the appropriate position.
  • the magnetic flux ⁇ E1 induced by the excited microflat coil 12 counteracts the magnetic flux ⁇ M1 caused by the permanent magnet 32 '.
  • 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 ⁇ M1 and ⁇ M2 with different flow directions.
  • the magnetic flux ⁇ E induced by the micro flat coils 12 and 13 via the cores 15 and 16 in the permanent magnet 32 supports the magnetic flux ⁇ M2 and counteracts the magnetic flux ⁇ M1 , so that the armature 31 tilts into the working position.
  • the direction of flow of the micro-coil flux ⁇ E 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 ⁇ E1 .
  • the magnetic foot ⁇ M has approximately twice the amount of the magnetic flux ⁇ E1.Therefore , the flux ⁇ M is shown as a double line.
  • ⁇ E1 is subtracted to ⁇ M
  • ⁇ E2 is added to ⁇ M , which in a corresponding manner, as explained above, causes a tilting movement of the armature 31, which is designed as a permanent magnet '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.
  • a smaller magnetic flux ⁇ E1 results.
  • the ratio ⁇ E1 to ⁇ E2 is smaller than in the case of the exemplary embodiment described in FIG. 5, since there is greater resistance across the air gap during the rotating rest. The principle of operation remains the same.
  • 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.
  • 8 shows an exemplary embodiment with a single microflat coil 12 'arranged around a magnetically conductive central core 17.
  • the magnetic fluxes ⁇ E1 and ⁇ M subtract, the magnetic fluxes ⁇ E2 and ⁇ M add up, which in turn enables a tilting movement of the armature 31 'designed as a permanent magnet 32 "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 achieved by corresponding interaction of the magnetic fluxes ⁇ E1 , ⁇ M1 , ⁇ E2 , ⁇ M2 , ⁇ E , ⁇ M (Fig. 2-8), 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 ', or the normally closed contacts 38, 38'.
  • the advantages of the subject of the invention are that they are low Heights can be achieved. It is essential that the invention trained flat coil system allows miniaturization of the relay. Through the Layered construction can optimally unbundle the coil from the contacts be designed. In addition, the manufacture of flat micro coils is due to the Use of modern galvanic processes in a manner known to those skilled in the art particularly inexpensive. This can be achieved by reducing the conductor insulation very high degree of utilization can be achieved. Compared to conventional wound Coils can be massively reduced in process steps during manufacture make. For example, soldering of the coil ends and also that is not necessary related use of fluxes, which for the microclimate of the relay can damage the contact. In addition, the Eisatz from inexpensive connection technologies, e.g. bonding, possible.
  • the Insulation material of the conventional insulation of the winding wires also has one negative impact on the microclimate.
  • Another advantage of the present The invention is therefore the elimination of this contact damaging Insulation material.

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  • 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.

Claims (9)

  1. Relais miniaturisé se composant d'un système (1) à bobine aimantée, d'un corps porteur (2) de contacts dans lequel sont agencés des contacts, d'un aimant permanent (32) pour le retour magnétique et d'un induit basculant (31) entre deux positions autour de son axe central, et d'un système de ressort de commutation, dans lequel le système (1) de bobine aimantée consiste en un système à bobine plate en forme de structure miniaturisée exécutée sur une plaque de flux (11) et consiste en au moins une bobine plate miniaturisée (12'), caractérisé en ce que l'induit basculant autour d'un axe médian (31') consiste en un aimant permanent tripolaire (32') ou un aimant permanent bipolaire (32").
  2. Relais miniaturisé selon la revendication 1, caractérisé en ce que l'aimant permanent (32) est positionné entre deux noyaux (15, 16) agencés dans les bobines plates miniaturisées (12, 13).
  3. Relais miniaturisé selon la revendication 1, caractérisé en ce que l'aimant permanent (32) est positionné sur des noyaux plats (15', 16') qui sont agencés dans les bobines plates miniaturisées (12, 13).
  4. Relais miniaturisé selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'un noyau central conducteur magnétique (17), de structure plate lui aussi est agencé entre les deux bobines plates miniaturisées (12, 13).
  5. Relais miniaturisé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un logement de rotation magnétiquement non conducteur (17') sur lequel se trouve l'axe de rotation (18") de l'induit basculant (31') est agencé entre deux bobines plates miniaturisées (12) et (13).
  6. Relais miniaturisé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe de rotation (18''') de l'induit (31') se trouve à une distance définie au-dessus de la plaque de flux (11).
  7. Relais miniaturisé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un noyau central conducteur magnétique (17) est agencé dans la bobine plate miniaturisée (12').
  8. Relais miniaturisé selon l'une quelconque des revendications précédentes, caractérisé en ce que la configuration de l'induit (31, 31') est un barreau prismatique et que les branches de l'induit diminuent en section en coupe transversale à partir de leur milieu géométrique en direction de l'extérieur, l'ensemble étant configuré d'une manière telle que cette configuration prismatique en coupe transversale des branches de l'induit forme dans leur milieu une arête (18) servant d'axe de rotation ou un contour en forme d'arc (18') pour réaliser le mouvement de pivotement.
  9. Relais miniaturisé selon l'une quelconque des revendications précédentes, caractérisé en ce que le système (1) de bobine plate est agencé au moins à peu près parallèlement à la position médiane neutre de l'induit (31, 31').
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 EP1032941A1 (fr) 2000-09-06
EP1032941B1 true 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)

Families Citing this family (28)

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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
JP2004533710A (ja) 2001-01-18 2004-11-04 アリゾナ ステイト ユニバーシティ 永久磁石のアライメント要件が緩和されたマイクロ磁気ラッチスイッチ
US20030025580A1 (en) 2001-05-18 2003-02-06 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
US20030169135A1 (en) 2001-12-21 2003-09-11 Jun Shen Latching micro-magnetic switch array
US6836194B2 (en) 2001-12-21 2004-12-28 Magfusion, Inc. Components implemented using latching micro-magnetic switches
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
AU2003252752A1 (en) * 2002-07-31 2004-03-03 Matsushita Electric Works, Ltd. Micro-relay
CN100565740C (zh) 2002-09-18 2009-12-02 麦克弗森公司 层压机电系统
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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JP2714736B2 (ja) * 1992-06-01 1998-02-16 シャープ株式会社 マイクロリレー
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
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
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

Also Published As

Publication number Publication date
EP1032941A1 (fr) 2000-09-06
DE59804089D1 (de) 2002-06-13
CH692829A5 (de) 2002-11-15
US6492887B1 (en) 2002-12-10
AU9733298A (en) 1999-06-15
WO1999027548A1 (fr) 1999-06-03

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