EP1032941B1 - Miniaturisiertes flachspul-relais - Google Patents
Miniaturisiertes flachspul-relais Download PDFInfo
- 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
Links
- 230000004907 flux Effects 0.000 claims description 23
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Micromachines (AREA)
Abstract
Description
Es zeigen schematisch:
- Fig. 1
- eine Ansicht der einzelnen Teile des Relais in Explosionsdarstellung,
- Fig. 2
- eine Innenansicht der Längsseite der Hauptelemente des Relais bei entferntem Kontaktträgerkörper,
- Fig. 3
- ein Ausführungsbeispiel analog jenem von Fig. 2,
- Fig. 4
- ein Ausführungsbeispiel analog jenem von Fig. 3,
- Fig. 5
- ein Ausführungsbeispiel analog jenem von Fig. 2,
- Fig. 6
- ein Ausführungsbeispiel analog jenem von Fig. 5,
- Fig. 7
- ein Ausführungsbeispiel analog jenem von Fig. 6,
- Fig. 8
- ein Ausführungsbeispiel des Antriebs des Mikrorelais mit einer zentral angeordneten Flachspule, und
- Fig. 9
- die Uebertragung der Kippbewegung des Ankers auf die Umschaltfedern.
Im Anker- und Umschaltfeder-Halter 3 ist ein als prismatischer Stab ausgebildeter Anker 31 angeordnet, der gleichzeitig als Permanentmagnet 32 ausgebildet sein kann. Die Anschlüsse 35 und 36 sind mit den Stellen 40 und 41 verschweisst. Wie aus Fig. 9 hervorgeht, betätigt der Anker 31 infolge seiner Kippbewegung die Umschaltfedern 33 und 34, die ihrerseits in entsprechender Stellung die Arbeitskontakte 37, 37', respektive die Ruhekontakte 38,38' schliessen.
Claims (9)
- Mikrorelais, bestehend aus einem Magnetspulsystem (1), einem Kontaktträgerkörper (2) mit darin angeordneten Kontakten, einem Permanentmagneten (32) für den magnetischen Rückschluss und einem um seine Mittelachse zwischen zwei Stellungen kippbaren Anker (31) und einem Umschaltfedersystem, wobei das Magnetspulsystem (1) als Flachspul-System in Form einer auf einer Flussplatte (11) ausgeführten Mikrostruktur ausgebildet ist und mindestens aus einer Mikroflachspule (12') gebildet ist,
dadurch gekennzeichnet, dass
der um eine Mittelachse schwenkbare Anker (31') als 3-poliger Permanentmagnet (32') oder als 2-poliger Permanentmagnet (32") ausgebildet ist. - Mikrorelais nach Patentanspruch 1
dadurch gekennzeichnet, dass
der Permanentmagnet (32) zwischen zwei in den Mikroflachspulen (12), (13) angeordneten Kemen (15), (16) positioniert ist. - Mikrorelais nach Patentanspruch 1
dadurch gekennzeichnet, dass
der Permanentmagnet (32) auf flachen Kernen (15'), (16') positioniert ist, die in den Mikroflachspulen (12), (13) angeordnet sind. - Mikrorelais nach einem der Patentansprüche 1 - 3, dadurch gekennzeichnet, dass zwischen den zwei Mikroflachspulen (12), (13) ein ebenfalls flach ausgebildeter, magnetisch leitender Zentralkern (17) angeordnet ist.
- Mikrorelais nach einem der Patentansprüche 1 - 4, dadurch gekennzeichnet, dass zwischen zwei Mikroflachspulen (12) und (13) eine magnetisch nicht leitende Drehauflage (17') angeordnet ist, worauf sich die Drehachse (18") des schwenkbaren Ankers (31') befindet
- Mikrorelais nach einem der Patentansprüche 1 - 5, dadurch gekennzeichnet, dass sich die Drehachse (18"') des Ankers (31') in einem definierten Abstand oberhalb der Flussplatte (11) befindet
- Mikrorelais nach einem der Patentansprüche 1 - 6, dadurch gekennzeichnet, dass in der Mikroflachspule (12') ein magnetisch leitender Zentralkern (17) angeordnet ist.
- Mikrorelais nach einem der Patentansprüche 1 - 7, dadurch gekennzeichnet, dass der Anker (31), (31') die Gestalt eines prismatischen Stabes aufweist und sich die Ankerschenkel im Querschnitt von ihrer geometrischen Mitte aus gegen aussen hin verjüngen, das Ganze derart, dass durch diese prismatische Querschnittsform der Ankerschenkel in deren Mitte eine Kante (18) als Drehachse oder eine bogenförmige Kontur (18') zur Ausführung der Schwenkbewegung entsteht.
- Mikrorelais nach einem der Patentansprüche 1 - 8, dadurch gekennzeichnet, dass das Flachspul-System (1) mindestens angenähert parallel zu der neutralen Mittellage des Ankers (31), (31') angeordnet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH267697 | 1997-11-20 | ||
CH02676/97A CH692829A5 (de) | 1997-11-20 | 1997-11-20 | Mikrorelais als miniaturisiertes Flachspul-Relais. |
PCT/CH1998/000475 WO1999027548A1 (de) | 1997-11-20 | 1998-11-06 | Miniaturisiertes flachspul-relais |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1032941A1 EP1032941A1 (de) | 2000-09-06 |
EP1032941B1 true EP1032941B1 (de) | 2002-05-08 |
Family
ID=4239086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98951151A Expired - Lifetime EP1032941B1 (de) | 1997-11-20 | 1998-11-06 | Miniaturisiertes flachspul-relais |
Country Status (6)
Country | Link |
---|---|
US (1) | US6492887B1 (de) |
EP (1) | EP1032941B1 (de) |
AU (1) | AU9733298A (de) |
CH (1) | CH692829A5 (de) |
DE (1) | DE59804089D1 (de) |
WO (1) | WO1999027548A1 (de) |
Families Citing this family (28)
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 |
US6794965B2 (en) | 2001-01-18 | 2004-09-21 | Arizona State University | Micro-magnetic latching switch with relaxed permanent magnet alignment requirements |
EP1399939A4 (de) | 2001-05-18 | 2006-11-15 | Microlab Inc | Mikromagnetische riegelschalterkapselung |
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 |
KR100547217B1 (ko) | 2002-07-31 | 2006-01-26 | 마츠시다 덴코 가부시키가이샤 | 마이크로 릴레이 |
WO2004027799A2 (en) | 2002-09-18 | 2004-04-01 | Magfusion, Inc. | Method of assembling a laminated electro-mechanical structure |
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 |
US8847715B2 (en) * | 2011-09-30 | 2014-09-30 | Telepath Networks, Inc. | Multi integrated switching device structures |
Family Cites Families (5)
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 |
-
1997
- 1997-11-20 CH CH02676/97A patent/CH692829A5/de not_active IP Right Cessation
-
1998
- 1998-11-06 AU AU97332/98A patent/AU9733298A/en not_active Abandoned
- 1998-11-06 DE DE59804089T patent/DE59804089D1/de not_active Expired - Fee Related
- 1998-11-06 EP EP98951151A patent/EP1032941B1/de not_active Expired - Lifetime
- 1998-11-06 WO PCT/CH1998/000475 patent/WO1999027548A1/de active IP Right Grant
- 1998-11-06 US US09/554,175 patent/US6492887B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6492887B1 (en) | 2002-12-10 |
CH692829A5 (de) | 2002-11-15 |
DE59804089D1 (de) | 2002-06-13 |
AU9733298A (en) | 1999-06-15 |
WO1999027548A1 (de) | 1999-06-03 |
EP1032941A1 (de) | 2000-09-06 |
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