EP0128529A2 - Interrupteur à pression - Google Patents

Interrupteur à pression Download PDF

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Publication number
EP0128529A2
EP0128529A2 EP84106478A EP84106478A EP0128529A2 EP 0128529 A2 EP0128529 A2 EP 0128529A2 EP 84106478 A EP84106478 A EP 84106478A EP 84106478 A EP84106478 A EP 84106478A EP 0128529 A2 EP0128529 A2 EP 0128529A2
Authority
EP
European Patent Office
Prior art keywords
contact elements
electrically conductive
bridge element
pressure switch
electrically
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.)
Withdrawn
Application number
EP84106478A
Other languages
German (de)
English (en)
Other versions
EP0128529A3 (fr
Inventor
Johannes Dr. Schlag
Helmut Dr. Muenstedt
Herbert Dr. Naarmann
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of EP0128529A2 publication Critical patent/EP0128529A2/fr
Publication of EP0128529A3 publication Critical patent/EP0128529A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
    • H01H13/785—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/002—Materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/034—Environmental protection

Definitions

  • the invention relates to a pressure switch with two contact elements, which are arranged electrically separated from one another and provided with connections, and further with a resilient, electrically conductive bridge element, which is attached in an electrically insulated manner from at least one of the contact elements and can be connected to this or these by pressing is.
  • the resilient bridge element generally consist of metal or graphite-coated plastic films, e.g. Polyester films, and the contact elements made of metal.
  • a disadvantage here is the limited resistance of these materials, e.g. against solvents or corrosive agents.
  • the object of the present invention was to show further embodiments of pressure switches of the type described at the outset which can be easily manufactured, have a long service life and can be used widely.
  • the invention accordingly relates to a pressure switch with two contact elements which are arranged electrically separated from one another and are provided with connections, and furthermore with a resilient, electrically conductive bridge element which is attached in an electrically insulated manner from one or both of the contact elements and with this or these by pressing is connectable, which is characterized in that the bridge element consists of a film or a sheet of electrically conductive pyrrole polymers.
  • the contact elements of the pressure switches according to the invention can be made of any electrically conductive materials, e.g. Metals. According to a preferred embodiment of the invention, however, these contact elements also consist of electrically conductive pyrrole polymers.
  • the electrically conductive pyrrole polymers to be used according to the invention are distinguished, inter alia, by a high electrical conductivity, which is generally in the range from 10 ° to 10 2 ohm -1 cm -1 .
  • pyrrole polymers are understood to mean polymers which have been obtained by polymerizing compounds from the class of the pyrroles.
  • Compounds from this class are the pyrrole itself and also the substituted pyrroles, such as N-alkylpyrroles, N-arylpyrroles, the pyrroles monoalkyl- or dialkyl-substituted on the carbon atoms and the pyrroles monohalogen-substituted or dihalogen-substituted on the carbon atoms.
  • pyrrole can be used alone or as a mixture with other compounds from the class of the pyrroles.
  • Polymers of unsubstituted pyrrole are preferably used. If polymers of substituted pyrroles are used, polymers of 3,4-dialkylpyrroles, in particular having 1 to 4 carbon atoms in the alkyl radical, and also of 3,4-dihalopyrroles, in particular 3,4-dichloropyrrole, are preferred.
  • the pyrrole polymers can optionally also contain certain amounts of other compounds which copolymerize with the pyrroles in copolymerized form.
  • Suitable compounds which copolymerize with the pyrroles are, for example Cyclopentadiene, azulene and its derivatives, such as benzazulene, kajaazulene, fulvene, indene or also square acid.
  • Heterocyclic compounds, such as imidazole, thiazole, furan or thiophene, are also suitable as comonomers.
  • 2-Bromothiophene, 2,6-dimethylpyridine and pyrazine can also be used. Based on 10 parts of the pyrroles, the polymers may contain 1 to 10 parts of the compounds copolymerized with the pyrroles in copolymerized form.
  • the electrically conductive pyrrole polymers and the processes for their preparation are known as such.
  • the electrically conductive pyrrole polymers are preferably produced by electrochemical polymerization, the polymerization of the monomers being carried out by anodic oxidation. Current densities of 2 to 20 mA / cm 2 are used, for example. Usually voltages in the range of 1 to 300 volts are applied.
  • the polymerization is expediently carried out in the presence of auxiliary liquids in which the monomers are dissolved or dispersed.
  • Polar organic solvents can be used for this purpose, such as, for example, alcohols, ethers such as dioxane or else tetrahydrofuran, acetone or acetonitrile, dimethylformamide, N-methylpyrrolidone, dimethyl sulfoxide or sulfolane. If water-miscible solvents are used, small amounts of water can also be added. If dispersants are used or aromatic sulfonic acids or their salts are used as conductive salts, it is also possible to carry out the electrochemical polymerization in liquid.
  • the pyrroles are polymerized in the presence of complexing agents.
  • complexing agents These are understood to be salts which contain, for example, those from the group BF 4 - , AsF4, AsF 6 - , SbF 6 - , SbCl - , PF 6 - , ClO 4 - , HSO 4 - , SO 4 2- as anions.
  • Complexing agents which contain anions of aromatic sulfonic acids, for example the benzenesulfonic acid anion or toluenesulfonic acid anion, are also preferred.
  • These salts contain, for example, lithium, sodium or potassium or else tertiary or quaternary ammonium or phosphonium cations.
  • complexing agents which also serve as conductive salts in the electrochemical polymerization of the pyrroles, are incorporated in the pyrrole polymers and bring about the high electrical conductivity of the pyrrole polymers.
  • the complexing agents are generally used in such an amount that the pyrrole polymers contain between 10 and 40 mol%, based on 1 mol of pyrrole. If sheet-shaped anodes are used in the electrochemical polymerization, polymer films or foils are obtained which can be used directly according to the invention in the pressure switches.
  • a possible embodiment of the pressure switch according to the invention is shown schematically in cross section.
  • a solid, dimensionally stable base (1) e.g. made of plastic, glass, metal, paper or the like
  • two flat contact elements (2) made of electrically conductive pyrrole polymers are applied in an adherent manner via an electrically insulating adhesive layer (3).
  • the two contact elements (2) are arranged electrically separated from each other and each provided with a connection (4) for the current supply and discharge.
  • the resilient bridge element (5) made of the electrically conductive pyrrole polymers, which is also flat, is attached over the two contact elements (2) by means of suitable holding or clamping devices (6) in such a way that it is electrically separated from both contact elements (2).
  • a pressure generating medium (8) e.g. the human hand or a mechanical pressure piece like a stamp
  • the bridge element (5) can be pressed against the two contact elements (2) and an electrically conductive connection can be established between them. If the bridge element (5) is relieved of the pressure again, it returns to its starting position due to its resilient, elastic properties, interrupting the electrically conductive connection.
  • the two contact elements - even if preferred - can not only be flat, but also, for example, linear or cylindrical.
  • special insulating elements in between can be dispensed with, provided that the need for an electrically separate arrangement of these elements is ensured by other design forms.
  • the bridge element e.g. the bridge element must be connected in an electrically conductive manner to one of the contact elements, so that only the contact with the second contact element need be made by the pressure on the bridge element.
  • the resilient bridge element in such a way that it is pressed onto the contact element (s) not by pressure but by tension.
  • An adhesive layer for attaching the contact elements to a base is also in no way absolutely necessary or can be replaced by other equivalent means.
  • the bridge element can be brought into direct contact with the pressure or tension-generating medium to trigger the switching process.
  • it can also be spanned, for example, by a flexible, preferably electrically insulating cover or protective film, for example made of plastic.
  • the bridge element can also be designed as a multilayer element with a layer made of the electrically conductive pyrrole polymers, which faces the contact elements, and a layer made of e.g. an electrically insulating material, such as another plastic film, which faces the pressure generating medium.
  • the bridge element or the covering or protective film spanning it can also be designed as a membrane, so that gases or liquids can also be used as the pressure-generating medium.
  • the pressure switch according to the invention can also be installed in a switch or insulating housing.
  • the pressure switch according to the invention can be used in many areas of application due to its diverse possible designs. It has a long service life. With a pressure switch, as shown in the figure, over 20 million operations could be carried out without visible material fatigue.

Landscapes

  • Push-Button Switches (AREA)
  • Contacts (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Steering Controls (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
EP84106478A 1983-06-10 1984-06-06 Interrupteur à pression Withdrawn EP0128529A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3321071 1983-06-10
DE19833321071 DE3321071A1 (de) 1983-06-10 1983-06-10 Druckschalter

Publications (2)

Publication Number Publication Date
EP0128529A2 true EP0128529A2 (fr) 1984-12-19
EP0128529A3 EP0128529A3 (fr) 1987-07-29

Family

ID=6201200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106478A Withdrawn EP0128529A3 (fr) 1983-06-10 1984-06-06 Interrupteur à pression

Country Status (3)

Country Link
EP (1) EP0128529A3 (fr)
JP (1) JPS609016A (fr)
DE (1) DE3321071A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996039707A1 (fr) * 1995-06-06 1996-12-12 Raychem Corporation Support d'electrode souple
EP1307071A1 (fr) * 2002-08-05 2003-05-02 Phonak Ag Prothese auditive retro-auriculaire comme commutateur
WO2005024870A3 (fr) * 2003-09-03 2005-05-06 Polyic Gmbh & Co Kg Elements de commande pour l'electronique polymere organique
EP1172831A3 (fr) * 2000-07-12 2006-03-29 Agfa-Gevaert Commutateur avec au moins un élément conducteur flexible
US7039208B2 (en) 2002-08-05 2006-05-02 Phonak Ag Behind-the-ear housing functioning as a switch
US7298023B2 (en) 2001-10-16 2007-11-20 Polyic Gmbh & Co. Kg Electronic device with organic insulator
US7329559B2 (en) 2003-01-21 2008-02-12 Polyic Gmbh & Co. Kg Use of conductive carbon black/graphite mixtures for the production of low-cost electronics
US7442954B2 (en) 2002-11-19 2008-10-28 Polyic Gmbh & Co. Kg Organic electronic component comprising a patterned, semi-conducting functional layer and a method for producing said component
US7786818B2 (en) 2004-12-10 2010-08-31 Polyic Gmbh & Co. Kg Electronic component comprising a modulator

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004506985A (ja) 2000-08-18 2004-03-04 シーメンス　アクチエンゲゼルシヤフト 封入された有機電子構成素子、その製造方法および使用
DE10061297C2 (de) 2000-12-08 2003-05-28 Siemens Ag Verfahren zur Sturkturierung eines OFETs
DE10105914C1 (de) 2001-02-09 2002-10-10 Siemens Ag Organischer Feldeffekt-Transistor mit fotostrukturiertem Gate-Dielektrikum und ein Verfahren zu dessen Erzeugung
DE10151440C1 (de) 2001-10-18 2003-02-06 Siemens Ag Organisches Elektronikbauteil, Verfahren zu seiner Herstellung und seine Verwendung
DE10160732A1 (de) 2001-12-11 2003-06-26 Siemens Ag Organischer Feld-Effekt-Transistor mit verschobener Schwellwertspannung und Verwendung dazu
DE10212640B4 (de) 2002-03-21 2004-02-05 Siemens Ag Logische Bauteile aus organischen Feldeffekttransistoren
DE10226370B4 (de) 2002-06-13 2008-12-11 Polyic Gmbh & Co. Kg Substrat für ein elektronisches Bauteil, Verwendung des Substrates, Verfahren zur Erhöhung der Ladungsträgermobilität und Organischer Feld-Effekt Transistor (OFET)
US8044517B2 (en) 2002-07-29 2011-10-25 Polyic Gmbh & Co. Kg Electronic component comprising predominantly organic functional materials and a method for the production thereof
DE10253154A1 (de) 2002-11-14 2004-05-27 Siemens Ag Messgerät zur Bestimmung eines Analyten in einer Flüssigkeitsprobe
DE10339036A1 (de) 2003-08-25 2005-03-31 Siemens Ag Organisches elektronisches Bauteil mit hochaufgelöster Strukturierung und Herstellungsverfahren dazu
DE10340643B4 (de) 2003-09-03 2009-04-16 Polyic Gmbh & Co. Kg Druckverfahren zur Herstellung einer Doppelschicht für Polymerelektronik-Schaltungen, sowie dadurch hergestelltes elektronisches Bauelement mit Doppelschicht
DE102004040831A1 (de) 2004-08-23 2006-03-09 Polyic Gmbh & Co. Kg Funketikettfähige Umverpackung
DE102004059465A1 (de) 2004-12-10 2006-06-14 Polyic Gmbh & Co. Kg Erkennungssystem
DE102004063435A1 (de) 2004-12-23 2006-07-27 Polyic Gmbh & Co. Kg Organischer Gleichrichter
DE102005009820A1 (de) 2005-03-01 2006-09-07 Polyic Gmbh & Co. Kg Elektronikbaugruppe mit organischen Logik-Schaltelementen
DE102005009819A1 (de) 2005-03-01 2006-09-07 Polyic Gmbh & Co. Kg Elektronikbaugruppe
DE102005017655B4 (de) 2005-04-15 2008-12-11 Polyic Gmbh & Co. Kg Mehrschichtiger Verbundkörper mit elektronischer Funktion
DE102005031448A1 (de) 2005-07-04 2007-01-11 Polyic Gmbh & Co. Kg Aktivierbare optische Schicht
DE102005035589A1 (de) 2005-07-29 2007-02-01 Polyic Gmbh & Co. Kg Verfahren zur Herstellung eines elektronischen Bauelements
DE102005044306A1 (de) 2005-09-16 2007-03-22 Polyic Gmbh & Co. Kg Elektronische Schaltung und Verfahren zur Herstellung einer solchen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574072A (en) * 1968-04-03 1971-04-06 Universal Oil Prod Co Polymerization of heterocyclic compounds
US3721778A (en) * 1971-06-21 1973-03-20 Chomerics Inc Keyboard switch assembly with improved operator and contact structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996039707A1 (fr) * 1995-06-06 1996-12-12 Raychem Corporation Support d'electrode souple
EP1172831A3 (fr) * 2000-07-12 2006-03-29 Agfa-Gevaert Commutateur avec au moins un élément conducteur flexible
US7298023B2 (en) 2001-10-16 2007-11-20 Polyic Gmbh & Co. Kg Electronic device with organic insulator
EP1307071A1 (fr) * 2002-08-05 2003-05-02 Phonak Ag Prothese auditive retro-auriculaire comme commutateur
US7039208B2 (en) 2002-08-05 2006-05-02 Phonak Ag Behind-the-ear housing functioning as a switch
US7442954B2 (en) 2002-11-19 2008-10-28 Polyic Gmbh & Co. Kg Organic electronic component comprising a patterned, semi-conducting functional layer and a method for producing said component
US7329559B2 (en) 2003-01-21 2008-02-12 Polyic Gmbh & Co. Kg Use of conductive carbon black/graphite mixtures for the production of low-cost electronics
WO2005024870A3 (fr) * 2003-09-03 2005-05-06 Polyic Gmbh & Co Kg Elements de commande pour l'electronique polymere organique
US7786818B2 (en) 2004-12-10 2010-08-31 Polyic Gmbh & Co. Kg Electronic component comprising a modulator

Also Published As

Publication number Publication date
DE3321071A1 (de) 1984-12-13
JPS609016A (ja) 1985-01-18
EP0128529A3 (fr) 1987-07-29

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Inventor name: SCHLAG, JOHANNES, DR.

Inventor name: MUENSTEDT, HELMUT, DR.

Inventor name: NAARMANN, HERBERT, DR.