EP1641010A1 - Ensemble capteur et applications d'un ensemble capteur - Google Patents

Ensemble capteur et applications d'un ensemble capteur Download PDF

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Publication number
EP1641010A1
EP1641010A1 EP05012823A EP05012823A EP1641010A1 EP 1641010 A1 EP1641010 A1 EP 1641010A1 EP 05012823 A EP05012823 A EP 05012823A EP 05012823 A EP05012823 A EP 05012823A EP 1641010 A1 EP1641010 A1 EP 1641010A1
Authority
EP
European Patent Office
Prior art keywords
sensor arrangement
arrangement according
elements
control panel
carrier material
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Withdrawn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
EP05012823A
Other languages
German (de)
English (en)
Inventor
Manfred Wöhlert
Diether Hoppner
Gert Martini
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP1641010A1 publication Critical patent/EP1641010A1/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Withdrawn legal-status Critical Current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
    • H01H2209/00—Layers
    • H01H2209/014—Layers composed of different layers; Lubricant in between
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/07—Properties of the membrane metallic

Definitions

  • the invention relates to a sensor arrangement, comprising a carrier material, wherein the carrier material electrically associated elements are assigned and wherein the carrier material is associated with a contact surface for actuating at least a portion of the elements.
  • the invention further relates to the use of a sensor arrangement in control panels of white goods, in particular in control panels of household appliances.
  • the invention also relates to the use of a sensor arrangement in control panels of brown goods, in particular in control panels of sound and image playback devices.
  • the invention relates to the use of a sensor arrangement in motor vehicles.
  • sensor arrays In modern devices, sensor arrays often have to withstand heavy loads. These result from constant actuation of the elements by the operator or by acting on the contact surface with these damaging media.
  • the invention is therefore based on the object, a sensor arrangement and uses of the sensor arrangements of the type mentioned in such a way and further, that a touch-based operability of devices can be easily implemented.
  • a sensor arrangement is characterized in that the contact surface is formed on a control panel associated with the support panel and at least a portion of the elements is selectively actuated by applying force to the contact surface.
  • control panel can be made of a variety of usable materials.
  • the material can be chosen to withstand damaging media and frequent load and to allow easy operation of the sensor assembly.
  • the elements Upon actuation of at least a portion of the elements, a change in the electrical resistance of these elements could occur. It is conceivable that the elements consist of materials which change their electrical resistance when pressurized, in particular reduce.
  • the pressure dependent material could be made of a matrix material incorporating conductive or semiconducting materials.
  • the matrix material could be formed both as an elastomer or as a polymeric material. This specific embodiment allows the formation of element structures on curved surfaces.
  • the control panel could be flexibly deformable together with the carrier material and independently of at least individual regions of the carrier material. It is further conceivable that the control panel and the carrier material are formed separately. This makes it possible to first connect a complex shaped control panel with the substrate and then insert as a composite in an electrical device. It is particularly advantageous that the carrier material can be connected to the control panel so that the formation of gaps effectively is avoidable. Thus, sources of error during installation are virtually eliminated and the switching operation is subject to almost no installation-related sources of error. Furthermore, an electrical contact can be generated by a force application if the control panel is deformable independently of individual regions of the carrier material.
  • control panel could be made of eingargeresistentem metal. This ensures that remain after application of force to the control panel no traces such as dents or deformation.
  • Metal is often used for optical reasons, but is not usable in the context of capacitive touch sensors because of its conductor properties.
  • metal can therefore be used in a pressure-based or force-based sensor arrangement, since its properties as an electrical conductor do not disturb the functionality of the sensors. In that regard, a simulation of a touch sensor arrangement with metallic contact surface by a force-based sensor arrangement is possible by the force required for the operation is set very low.
  • the sensor arrangement could be applied to an abutment. This makes it possible to realize that the control panel is deformable, whereby the carrier material can remain largely undeformed. In this case, the control panel can be deformed so that it easily connects elements for generating an electrical contact and the carrier material remains largely unloaded.
  • the control panel could have a variable thickness.
  • the thickness could be selected depending on the material used for the control panel be that the control panel is easily deformed by the least force.
  • the control panel could require a switching path of at most 300 microns against this background to activate the elements. In particular, a switching path of 40 microns - 100 microns makes sense technically.
  • This embodiment is advantageous in terms of particularly fast-response electronics, since the operator only has to spend the slightest amount of effort to activate a process. It is conceivable that the thickness of the control panel material is selected such that an operator must spend the least possible force. Furthermore, it is conceivable that the control panel has tapers at certain points in order to ensure easier deformability of the diaphragm material at these points.
  • Activation of the elements could be done without tactile feedback. It is conceivable that only light indicators indicate to the operator that the activation has taken place. The absence of a tactile feedback allows low-noise operation of the sensor arrangement and simulates the operation of a touch sensor, which requires only a powerless touch by the operator.
  • the control panel could be glued to the substrate.
  • the provision of an adhesive layer prevents the formation of a moisture film between the substrate and the control panel. As a result, it is impossible that accumulate dirt and disturbing foreign particles between control panel and substrate.
  • the carrier material could be designed as a multilayer film package.
  • the training as a film package allows the design as a particularly thin carrier material, which is extremely favorable in terms of its flexural rigidity Features.
  • the carrier material could consist of a highly elastic material, which can be applied flat to given structures without the formation of cavities and wrinkles in corners or edges.
  • the carrier material could comprise at least one carrier foil and at least one spacer foil provided with recesses. It is advantageous that the carrier film can accommodate the elements, which are embedded in a spacer film.
  • the embedding of the elements in a spacer film realizes a shielding of the elements and a protection thereof.
  • the spacer film is dimensioned such that a compression of the elements over a certain amount by the spacer film is prevented.
  • the thickness of the carrier film could be less than 200 ⁇ m.
  • the spacer foil could have a thickness of 80 ⁇ m. It is conceivable that the spacer film is sandwiched between two carrier films. This specific embodiment allows a particularly protected arrangement of the elements between the carrier films with a minimum thickness of the carrier material.
  • the elements could be arranged between carrier film and control panel. As a result, it is realized that the elements are protected from one side by the carrier foil and from the other by the control panel.
  • the carrier material could consist of plastics. It is also conceivable that refractory plastics are used, which are resistant to high temperatures. Depending on the requirements of the carrier material, a suitable plastic can be selected.
  • the elements could consist of conductive pastes.
  • This embodiment allows printing of elements, whereby a very small thickness or very low height of the carrier material can be realized. In particular, the elements almost do not protrude from the carrier film. Furthermore, it is realized that the elements are connectable to the carrier film such that they are flexibly deformable together with this.
  • the elements could be silver conductive paste, carbon paste and other conductive pastes. The use of these materials is particularly favorable in printing processes, since they can be distributed very well on the substrate due to their rheological properties. In particular, it is possible to achieve particularly fine structures. It is particularly conceivable that switching electrodes have grid or network structures.
  • the elements could be formed as etched structures. As a result, a particularly firm connection of the elements with the carrier material is ensured.
  • the elements could consist of metals, preferably copper. This choice of material realizes a particularly good conductivity.
  • the elements could include tracks and electrodes. It is conceivable that the interconnects are connected to the electrodes and an evaluation, which processes the electrically generated signals of the elements.
  • the electrodes could be arranged lying in a plane spaced from each other. In this case, it is conceivable that the electrodes are electrically connected to one another when a force is applied to the control panel by a metallic conductor in the sense of bridging.
  • the orientation of the electrodes in a plane allows a particularly flat construction of the carrier material.
  • the control panel could act as a metallic conductor or the control panel could be assigned to metallic areas, which act as metallic conductors.
  • This embodiment allows a structure of the sensor arrangement with few components. It is conceivable that the electrodes are positioned on a carrier film, wherein the control panel of the carrier film is spaced from each other by a spacer film. When the control panel is deformed, the metallic material of the control panel comes to a stop on two insulated electrodes and connects them in an electrically conductive manner.
  • the contact surface could be formed on a control panel of an electrical appliance, which has a complexly shaped three-dimensional surface.
  • This embodiment allows the use of the sensor arrangement in electrical devices, which are characterized by a special design.
  • the sensor arrangement is not only in flat operating structures, but also in complex formed operational and realized three-dimensionally complex shaped contact surfaces.
  • the carrier material could be hermetically applied through an adhesive layer. This prevents the formation of liquid films between the substrate and control panel, in particular between electrodes and control panel, which can lead to undesirable electrical effects.
  • the contact surface could be designed as a pictogram. This embodiment realizes a simple labeling possibility of control surfaces on a control panel.
  • the touch area could be printed with operating symbols. It is particularly conceivable that the contact surface is printed with symbols that show the operator at which point he must spend pressure.
  • the control panel could be associated with an LED display. This embodiment allows the operator to signal that an element has been activated.
  • the LED display could be designed as a seven-segment display. As a result, numbers can be displayed in a simple manner. In terms of a visually appealing design, the LED could be provided with a night design or decor print.
  • Conceivable is a use in all household small and large appliances.
  • a sensor arrangement having the features of claim 29.
  • a sensor arrangement according to the invention in control panels of brown goods, especially in control panels of audio and video players used.
  • an operability of these devices can be realized without difficulty.
  • the sound reproducing apparatus could be record players, CD players, cassette players, tape recorders, televisions, DVD players, play stations, mobile phones or dictating machines.
  • a sensor arrangement according to the invention is used in control panels of motor vehicles. According to the invention, operability of devices in a motor vehicle, which are subjected to frequent operating procedures, can be realized without difficulty. In order to avoid repetition, reference should be made with respect to the inventive step to the statements on the sensor arrangement as such.
  • sensors could be combined as control elements with appropriate signal evaluation to a control panel of several sensors.
  • the contact surface 1 shows a sensor arrangement with a contact surface 1, which is formed on a control panel 2.
  • the contact surface is printed with a symbol.
  • the control panel 2 is followed by an adhesive layer 3, which defines a carrier material 5 on the control panel 2.
  • the contact surface 1 is formed on a separable from the substrate 5 control panel 2, which is flexibly deformable together with the carrier material 5.
  • the control panel is independent of at least individual areas of the carrier material 5, here independently of the carrier film 7, flexibly deformable. At least part of the elements 4 can be selectively actuated by application of force to the contact surface 1.
  • the carrier material 5 is formed as a multilayer film package.
  • the carrier material 5 comprises a carrier foil 7 and a carrier foil 8, which sandwich a spacer foil 9.
  • the elements 4, 6 comprise conductor tracks 6 and electrodes 4, which are designed as switching electrodes.
  • the electrodes 4 are electrically connected to each other when force applied to the control panel 2 and make an electrical contact. The entire arrangement abuts against an abutment 11. This makes it possible to deform the control panel 2, wherein the carrier film 7 undeformed and just remains.
  • FIG. 2 shows a sensor arrangement with a control panel 2 and a carrier material 5, which consists of a carrier foil 7 and a spacer foil 9.
  • a carrier material 5 which consists of a carrier foil 7 and a spacer foil 9.
  • the electrodes 4 are spaced apart.
  • the metallic control panel 2 Upon application of force to the metallic control panel 2, it is deformable in such a way that it bends into the recess 10 of the spacer film 9 and bridges the distance between the two electrodes 4.
  • the metallic control panel 2 acts as a metallic conductor.
  • the entire arrangement abuts against an abutment 11. This makes it possible to deform the control panel 2, wherein the carrier film 7 undeformed and just remains.
  • FIG. 3 shows a sensor arrangement with a control panel 2 and a carrier material 5, which consists of a carrier foil 7 and a spacer foil 9.
  • a carrier material 5 which consists of a carrier foil 7 and a spacer foil 9.
  • an element 4 which is acted upon by force of the control panel 2 with pressure. This changes the electrical resistance of the material 12 from which the element 4 is made.
  • the entire assembly is located on an abutment eleventh at. This makes it possible to deform the control panel 2, wherein the carrier film 7 undeformed and just remains.

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  • Push-Button Switches (AREA)
EP05012823A 2004-09-28 2005-06-15 Ensemble capteur et applications d'un ensemble capteur Withdrawn EP1641010A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410047516 DE102004047516A1 (de) 2004-09-28 2004-09-28 Sensor-Anordnung und Verwendungen einer Sensor-Anordnung

Publications (1)

Publication Number Publication Date
EP1641010A1 true EP1641010A1 (fr) 2006-03-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05012823A Withdrawn EP1641010A1 (fr) 2004-09-28 2005-06-15 Ensemble capteur et applications d'un ensemble capteur

Country Status (2)

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EP (1) EP1641010A1 (fr)
DE (1) DE102004047516A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012102921A1 (de) 2012-04-04 2013-10-10 Miele & Cie. Kg Bedienvorrichtung mit einem Blendenteil
CN104980142A (zh) * 2014-04-03 2015-10-14 阿尔卑斯电气株式会社 接触式传感器模块
EP2985912A1 (fr) 2014-08-13 2016-02-17 Miele & Cie. KG Dispositif de commande dote d'une partie de couvercle et appareil electrique
EP2985913A1 (fr) 2014-08-13 2016-02-17 Miele & Cie. KG Dispositif de commande doté d'une partie de couvercle et appareil électrique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013937A1 (de) 2006-03-16 2007-09-27 Prettl Appliance Systems Gmbh Bedienblendenanordnung für Haushaltsmaschinen und Verfahren zur Herstellung einer Bedienblendenanordnung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137072A (en) * 1999-05-26 2000-10-24 Ferro Corporation Control panel
EP1429357A1 (fr) * 2002-12-09 2004-06-16 IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. Interrupteur à feuilles multicouche

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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DE3888182D1 (de) * 1988-11-04 1994-04-07 Dynalab Ag Cham Abdeckung für Folientastaturen.
DE9016410U1 (de) * 1990-12-03 1991-02-21 Gebr. Hein Gmbh & Co Kg, 6900 Heidelberg Frontplatte mit Folientastatur
US5574623A (en) * 1995-02-28 1996-11-12 Master Molded Products Corporation Device panel with in-molded applique
DE19645678C2 (de) * 1996-11-06 2000-05-25 Preh Elektro Feinmechanik Bedieneinheit zum Schalten und Steuern von Haushaltsgeräten
LU90200B1 (de) * 1998-01-21 1999-07-22 Iee Sarl Schaltelement in Folienbauweise
DE19811372C2 (de) * 1998-03-16 2000-05-18 Bsh Bosch Siemens Hausgeraete Haushaltsgerät mit einer Bedieneinheit mit Piezosensor
DE20216286U1 (de) * 2002-10-23 2002-12-19 Schurter Gmbh Tastatur
DE102004005952A1 (de) * 2004-02-02 2005-08-25 E.G.O. Elektro-Gerätebau GmbH Bedieneinrichtung für ein Elektrogerät mit einem Bedien-Feld und einem Sensorelement darunter sowie Verfahren zum Betrieb der Bedieneinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137072A (en) * 1999-05-26 2000-10-24 Ferro Corporation Control panel
EP1429357A1 (fr) * 2002-12-09 2004-06-16 IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. Interrupteur à feuilles multicouche

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012102921A1 (de) 2012-04-04 2013-10-10 Miele & Cie. Kg Bedienvorrichtung mit einem Blendenteil
CN104980142A (zh) * 2014-04-03 2015-10-14 阿尔卑斯电气株式会社 接触式传感器模块
EP2985912A1 (fr) 2014-08-13 2016-02-17 Miele & Cie. KG Dispositif de commande dote d'une partie de couvercle et appareil electrique
EP2985913A1 (fr) 2014-08-13 2016-02-17 Miele & Cie. KG Dispositif de commande doté d'une partie de couvercle et appareil électrique
DE102014111560A1 (de) 2014-08-13 2016-02-18 Miele & Cie. Kg Bedienvorrichtung mit einem Blendenteil und elektrisches Gerät
DE102014111562A1 (de) 2014-08-13 2016-02-18 Miele & Cie. Kg Bedienvorrichtung mit einem Blendenteil und elektrisches Gerät

Also Published As

Publication number Publication date
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