EP1318535A1 - Touche à membrane pliable et méthode de production - Google Patents

Touche à membrane pliable et méthode de production Download PDF

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Publication number
EP1318535A1
EP1318535A1 EP03006354A EP03006354A EP1318535A1 EP 1318535 A1 EP1318535 A1 EP 1318535A1 EP 03006354 A EP03006354 A EP 03006354A EP 03006354 A EP03006354 A EP 03006354A EP 1318535 A1 EP1318535 A1 EP 1318535A1
Authority
EP
European Patent Office
Prior art keywords
membrane
contacts
contact
carrier substrate
substrate
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Withdrawn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
EP03006354A
Other languages
German (de)
English (en)
Inventor
Josef Wagner
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.)
Sonova Holding AG
Original Assignee
Phonak 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 Phonak AG filed Critical Phonak AG
Priority to EP03006354A priority Critical patent/EP1318535A1/fr
Publication of EP1318535A1 publication Critical patent/EP1318535A1/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Withdrawn legal-status Critical Current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
    • H01H13/702—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
    • H01H2229/00—Manufacturing
    • H01H2229/038—Folding of flexible printed circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/004—Application hearing aid

Definitions

  • the present invention relates to a Actuator or a switch, in particular for small electrical and electronic devices according to The preamble of claim 1, a method for the same Manufacture and use of the device and a Hearing aid with one device.
  • toggle switches For small electronics devices, such as Hearing aids are so-called “toggle switches” and others Switches used to e.g. between different Programs to adjust the volume or just to turn the device on or off.
  • toggle switch there is usually one the contact switch covering flexible membrane, such as for example a molded silicone part, provided with a specially applied conductive layer.
  • the function this silicone membrane molded part consists on the one hand in the Sealing the housing against ingress of moisture and on the other hand to trigger the switching functions.
  • This Technology is similar to that of very simple safety mats Rubber or silicone, such as arranged at cheap calculators.
  • the advantage of this technique is that it is very easy to set up and use. New is only that the silicone molding is a conductive layer having.
  • the object of the present invention is therefore in Create a switch or potentiometer or one Actuator in which the switch contacts against penetrating moisture and other liquids and are protected against pollution, and which Contacts can be switched in the simplest way.
  • the object is achieved by means of a Actuating device according to the wording of claim 1 solved.
  • An actuating device or a Switches for small electrical and electronic devices which or which at least two switching contacts, which has one, at least one of the contacts spanning membrane on pressure on the membrane are connectable to one another for a switching operation trigger.
  • the membrane and a substrate are on or in which the contacts are arranged, via a Folded together.
  • the membrane and the substrate with the Contacts from the same carrier substrate, by folding the the part of the carrier substrate forming the membrane, produced.
  • each Substrate and in the membrane at least one contact arranged, with at least one contact in the membrane and are arranged one above the other on the substrate, such that to trigger a switching operation Pressure on the membrane the two contacts together are connectable.
  • the at least one contact in the substrate is caused by the Membrane so overstretched that when the Device or the membrane of at least one Contact is spaced.
  • the membrane spanning a contact is preferably resiliently designed that the membrane when not actuated or the conductor path facing the contact or the further contact is spaced from this one contact.
  • the at least one contact When pressed or pressed on the membrane, it is against the at least one contact can be deflected such that the Conductor or the further contact in the membrane touches a contact in the carrier substrate.
  • Proposed procedures will have at least two contacts arranged in or on a carrier substrate and then part of the carrier substrate becomes Formed a membrane folded over to at least one of the To span contacts, whereby in the area of contact against the one side of the membrane facing contact electrically conductive and / or another contact is formed. By operating the membrane or pressing the membrane against the one contact this can be connected to at least one other contact in order trigger a switching operation.
  • a kink is formed in the carrier substrate.
  • area of the carrier substrate which for Formation of the membrane folded over is at least one further contact arranged and the further contact in or on the membrane is largely over the at least one Contact arranged in the carrier substrate, so that by pressure on the membrane or when they are actuated, the two Contacts are connected.
  • the carrier substrate at least in or on the part, which is folded over to form the membrane electrically conductive area or a conductor track formed, which after folding such over which there is at least one contact that Actuation of the membrane or when pressing the membrane against the at least one contact of this with at least one further contact is electrically connected.
  • the carrier substrate several contacts and further at least one contact and / or one Conductor arranged in the part which to Forming the membrane is folded over.
  • the at least one Contact and / or the conductor track in the membrane are over at least one of the contacts in the unfolded part arranged so that when actuating the membrane or by Pressing the membrane against the at least one contact in the Carrier substrate this with at least one further contact is connected.
  • the proposed switch or the Actuators are particularly suitable for small electronic or electrical devices, such as especially for hearing aids.
  • FIG. 1 shows a longitudinal section of a carrier substrate 3 or a so-called flexprint is shown, on which two Conductor tracks or contact areas 5 and 7 are arranged. Depending on the side, these contacts 5 and 7 are isolated 13 and 19 covered.
  • a kink 15 is formed in the center in the region 17, so that the edge region 23 of the carrier substrate for formation a membrane is foldable.
  • the switch manufactured in this way with a folded over Carrier substrate in region 17 and membrane 23 formed is again shown in section in Figure 2.
  • the two conductors or contacts 5 and 7 will fold arranged one above the other and the insulation 13 or 19 also serves as a spacer.
  • To the switch seal or around the two insulations 13 and 19 firmly to connect to each other is preferably an adhesive 27 used, of course the connection also by welding or other suitable measures can be manufactured.
  • FIG. 3 and 4 is a top view Carrier substrate 3, similar to that in Figure 1 in unfolded state, shown, again the two contacts or conductor tracks 5 and 7 are arranged, which with connecting contacts 33 and 37 with corresponding circuits or switching menus or electrical contacts can be connected.
  • a kink 15 is again provided, around which the Part 23 of the carrier substrate 3 is foldable for formation the membrane or the so-called cover layer.
  • FIG. 5 the carrier substrate from FIG shown folded state seen in the direction of arrow A, wherein the contact 7 is arranged above the contact 5 is.
  • Figure 5 shows the solid lines Diaphragm when the switch is not actuated and dashed when the membrane is pressed down or when the Switch. Contact 7 becomes contact 5 pressed, which triggers a switching process.
  • FIG. 1 Another embodiment variant is in turn in FIG a switch according to the invention shown, wherein in the present case two in the lower part of the carrier substrate arranged contacts 5 and 45 by means of a conductor track 47, arranged in the membrane 23, by actuating the Switch can be connected to each other.
  • FIG. 7 shows the carrier substrate in the unfolded state shows.
  • the switch can now are produced by folding the membrane 23 around the Kink 15 such that the edge area 39 of the membrane 23 in the area 39 'shown in dashed lines on the Carrier substrate 3 comes to rest.
  • the folding takes place such that the conductor track 14 via the two contacts 6 and 10 comes to rest in the carrier substrate.
  • the Conductor 14, arranged in the membrane 23 can now by pressing down the membrane or pressing the Switch, for example, the two contacts 6 and 10 be connected to each other.
  • FIG. 8 again shows a further embodiment variant of a switch according to the invention, the Carrier substrate is shown in the unfolded state.
  • a plurality of contacts 61, 65, 69 and 73 arranged, which over Contact tracks 63, 67, 71 and 75 with corresponding ones Circuits, menu controls, electrical contacts, etc. are connected.
  • a plurality of contacts 53, 53 ', 53' 'and 53 '' 'is provided, which for example with each other are electrically connected and which via a Contact path 51 with, for example, an electrical one Supply are connected.
  • Figure 9 shows in longitudinal section similar to the switch shown in Figure 8, a switch with several Contact points, which contact points however in Switch longitudinal direction are arranged.
  • the switch in Figure 9 in folded shown finished state.
  • a longitudinally extended Switch contact 81 arranged in the carrier substrate 3 covering membrane 23 in the various contacts 71, 73, 75, 77 and 79 in the carrier substrate 3 covering membrane 23 in the various contacts 71, 73, 75, 77 and 79 in the carrier substrate 3 covering membrane 23 .
  • a longitudinally extended Switch contact 81 arranged in the various contacts 71, 73, 75, 77 and 79 in the carrier substrate 3 covering membrane 23 .
  • a corresponding circuit is triggered. Consequently is the circuit dependent on position, or is it in the switch shown in Figure 9 by a so-called position sensitive element.
  • FIGS. 10a and 10b A similar switch is shown in FIGS. 10a and 10b analogous to that shown in Figure 9, both in Longitudinal section as in top view.
  • the carrier substrate 3 instead of Multiple contacts 71 to 79 is one in the carrier substrate 3 only stripped electrode 83 arranged, comprising a flexible edge 87, which electrode for example via a conductor track 89 with a circuit, one electrical supply, etc. is connected.
  • the membrane 23 like stiffened electrode 83, arranged to overlap.
  • an electrical Conductor path 85 In the membrane 23 is further arranged an electrical Conductor path 85.
  • switch shown is a so-called "Cracked frog" element, depending on the possible Force application point, schematically in FIG. 10 a with arrows 3 shown, a different switching process takes place, in which, depending on where the switch is operated different amperage when switching through the Switch can flow.
  • the carrier substrate especially in The area of the folded membrane is preferably a at least slightly flexible polymeric material used.
  • cover layer or membrane 23 limited elastically flexible polymers such as Polyimide.
  • cover layer or membrane 23 limited elastically flexible polymers such as Polyimide.
  • any material in any thickness can be selected.
  • suitable polymer, ceramic, glass or metal is used which one or which over the required electrical, mechanical and chemical properties features.
  • Such materials, suitable as Carrier substrates and in particular as a membrane or Cover layers, can be obtained from existing flexprint suppliers are manufactured and purchased.
  • the switch can be operated according to the Figures 1 to 10, for example, a so-called toggle pin are used, by means of which the membrane or Coverlayer 23 against the lower carrier substrate or the lower contact is pressed until the conductor track or Contact in the membrane in contact with this contact arrives.
  • switches can other embodiments, of course be designed according to the invention, or else Switches or controllers can be used with the described Actuators to be replaced. Everywhere, where Moisture, any chemical substances, sweat, Sunscreen, etc. when operating switches one Role play, the proposed according to the invention Switches a reliable approach. So you can Reliable even under unfavorable conditions working, small electronic devices with appropriate switches are provided. For the Production of such devices, the invention means a strong cheapening and an increase in reliability, by cheap and well known materials and Molded parts can be used. Maintenance of the Small electronic devices can be significantly reduced become.
EP03006354A 2003-03-20 2003-03-20 Touche à membrane pliable et méthode de production Withdrawn EP1318535A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03006354A EP1318535A1 (fr) 2003-03-20 2003-03-20 Touche à membrane pliable et méthode de production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03006354A EP1318535A1 (fr) 2003-03-20 2003-03-20 Touche à membrane pliable et méthode de production

Publications (1)

Publication Number Publication Date
EP1318535A1 true EP1318535A1 (fr) 2003-06-11

Family

ID=8185874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03006354A Withdrawn EP1318535A1 (fr) 2003-03-20 2003-03-20 Touche à membrane pliable et méthode de production

Country Status (1)

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EP (1) EP1318535A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1496530A2 (fr) † 2003-07-08 2005-01-12 Sonion Roskilde A/S Tableau de commande avec zone d'activation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066851A (en) * 1975-10-30 1978-01-03 Chomerics, Inc. Keyboard switch assembly having foldable printed circuit board, integral spacer and preformed depression-type alignment fold
US4246452A (en) * 1979-01-05 1981-01-20 Mattel, Inc. Switch apparatus
US4527030A (en) * 1980-11-06 1985-07-02 Preh Elektrofeinmechanische Werke, Jakob Preh Nachf., Gmbh & Co. Keyboard
WO1995012207A1 (fr) * 1993-10-28 1995-05-04 Oticon A/S Dispositif de contact electrique et prothese auditive dotee de ce dernier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066851A (en) * 1975-10-30 1978-01-03 Chomerics, Inc. Keyboard switch assembly having foldable printed circuit board, integral spacer and preformed depression-type alignment fold
US4246452A (en) * 1979-01-05 1981-01-20 Mattel, Inc. Switch apparatus
US4527030A (en) * 1980-11-06 1985-07-02 Preh Elektrofeinmechanische Werke, Jakob Preh Nachf., Gmbh & Co. Keyboard
WO1995012207A1 (fr) * 1993-10-28 1995-05-04 Oticon A/S Dispositif de contact electrique et prothese auditive dotee de ce dernier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1496530A2 (fr) † 2003-07-08 2005-01-12 Sonion Roskilde A/S Tableau de commande avec zone d'activation
US7394911B2 (en) 2003-07-08 2008-07-01 Sonian Roskilde A/S Control panel with activation zone
EP1496530B2 (fr) † 2003-07-08 2010-09-22 Sonion Roskilde A/S Tableau de commande avec zone d'activation

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