EP2512858A1 - Operating and/or control element having a capacitive sensor - Google Patents

Operating and/or control element having a capacitive sensor

Info

Publication number
EP2512858A1
EP2512858A1 EP10795927A EP10795927A EP2512858A1 EP 2512858 A1 EP2512858 A1 EP 2512858A1 EP 10795927 A EP10795927 A EP 10795927A EP 10795927 A EP10795927 A EP 10795927A EP 2512858 A1 EP2512858 A1 EP 2512858A1
Authority
EP
European Patent Office
Prior art keywords
control
sensor
element according
sensor fields
operating
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Withdrawn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
EP10795927A
Other languages
German (de)
French (fr)
Inventor
Joachim Hentschel
Otto Mueller
Tomas Gottwald
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.)
Valeo Schalter und Sensoren GmbH
Original Assignee
Valeo Schalter und Sensoren GmbH
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 Valeo Schalter und Sensoren GmbH filed Critical Valeo Schalter und Sensoren GmbH
Publication of EP2512858A1 publication Critical patent/EP2512858A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • H03K17/9622—Capacitive touch switches using a plurality of detectors, e.g. keyboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/141—Activation of instrument input devices by approaching fingers or pens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/143—Touch sensitive instrument input devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/14—Operating parts, e.g. turn knob
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/006—Containing a capacitive switch or usable as such
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/96054—Double function: touch detection combined with detection of a movable element

Definitions

  • the invention relates to an operating and / or control element with a capacitive sensor, in particular for input or control elements in a vehicle, according to the preamble of claim 1.
  • Such control and / or control elements serve in particular as input elements in a vehicle and are predominantly as mechanically moving parts, eg. B. as a knob, button / switch or sliding plate, etc., executed and realized in conjunction with electromechanically contacting elements.
  • Capacitive proximity detection systems are also used to detect an approach of operators to these controls and / or controls.
  • the geometric arrangement is usually limited to two dimensions or a very limited three-dimensional arrangement, whereby this restriction has a negative impact on the ergonomics and the findability and operation in driving.
  • an operating unit for a ventilation or air conditioning system of a vehicle has a three-dimensional projection which is mechanically connected to a so-called switching mat for the operation of electrical contacts.
  • this switching mat also has a capacitively acting electrode which, when an operator approaches, can influence a switching contact on the switching mat.
  • the principle of such a capacitive proximity sensor is known per se, since here the influence of the electric field lines between capacitor plates is detected by an operator.
  • the invention is based on an operating and / or control element with a capacitive sensor, in particular for input or control elements in a vehicle, with a sensor arranged on a three-dimensional element, which is equipped with at least one capacitive sensor element for proximity detection.
  • the three-dimensional sensor advantageously has a plurality of separate sensor fields which are laterally aligned at least in the direction of the operating space and in predetermined directions such that an approach or a touch of an operator within the operating space can be selectively detected three-dimensionally.
  • the sensor fields preferably consist of at least one sensor field oriented vertically in the operating space and sensor fields distributed on the lateral circumference of the three-dimensional element.
  • the sensor fields are mounted on a knob-like element, wherein the lateral sensor fields on the circumference of the element circumferentially evenly aligned at an angle of 0 ° to 90 ° from the vertical pointing into the control room axis.
  • the sensor fields can also be mounted on a sliding element, with the lateral sensor fields being aligned on the element in the respective sliding direction. It is also possible that the sensor fields are mounted on a probe element, wherein the sensor fields are aligned on the element in the respective scanning direction.
  • the sensor arrays can, for example, consist of metal layers attached to a plastic carrier, which can be contacted via contact elements with conductor tracks of a printed circuit board in an electronic evaluation unit.
  • the sensor fields may consist of individual metal elements, of multi-component spray elements with a metallization, of spatially deformable plastics, preferably foils, or of a shape of metal-containing plastics.
  • the contact elements are designed to be resilient. Via the element with the sensor fields, a plastic front adapted to the contour of the element can be arranged in a simple manner in the direction of the operating space.
  • control and / or operating element thus enables an unrestricted three-dimensional arrangement of field generator elements of a capacitive sensor.
  • This geometrical free-form surfaces via tactile or switching elements or three-dimensional tangible rotary or sliding elements can be formed. This makes possible an ergonomically favorable design of the operating and / or control elements with optimal properties with regard to findability and operation on the part of a user.
  • the invention furthermore proposes various methods for implementing the arrangement of the sensor fields as field-detecting antennas, these being made of individual metal elements, multi-component injection elements with metallization, metallization of spatially deformable plastics (eg foils), shaping of metal-containing plastics and contacting to one behind lying arrangement, for.
  • a printed circuit board,sfedernd or einzelfedernd may exist.
  • Figure 1 shows an inventive embodiment of an operating and / or control element according to a rotary knob with a sensor array on the front and laterally on the circumference mounted sensor fields and
  • Figure 2 shows an illustration of an assembly of the control and / or control element of Figure 1 between a circuit board and a plastic mold as a front panel shows.
  • Figure 1 shows an operating and / or control element 1 with a capacitive sensor explained below, which corresponds in its function to a rotary knob and is particularly suitable for input or control elements in a vehicle.
  • a capacitive sensor explained below, which corresponds in its function to a rotary knob and is particularly suitable for input or control elements in a vehicle.
  • a designed as a plastic body three-dimensional element 2 is present, which has a plurality of separate sensor fields 3 and 4, wherein the sensor array 3 is arranged in the direction of the control room and the sensor fields 4 are laterally aligned so that an approach or a touch of an operator within the control room three-dimensionally selectively via contacts 5 is detected.
  • FIG. 2 shows an illustration of an assembly of the operating and / or control element 1 according to FIG. 1 between a printed circuit board 6 and a plastic mold 7 as a front panel.
  • the sensor fields 3 and 4 are here on the element 2 as a plastic carrier applied metal elements, which are contacted via possibly resiliently designed contact elements 8 with conductor tracks of the printed circuit board 6.
  • the contour of the element 2 adapted plastic mold 7 as a front panel can then be placed over the element 2 with the sensor fields 3 and 4, so hereby a knob without mechanically moving parts can be simulated.
  • the front panel as a plastic mold 7 could also be a front panel with a metallic, z. As galvanically applied coating, or a front plate made of metal foil or a molded part made of metal. In experiments it was found that even with such front panels capacitive changes can be seen well by the sensor fields 3 and 4.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

The invention relates to an operating and/or control element having a capacitive sensor, in particular for input elements or control elements in a vehicle, having a sensor arranged on a three-dimensional element (2) and equipped with at least one capacitive sensor element for approach detection. The three-dimensional sensor comprises a plurality of separate sensor fields (3, 4) which at least in the direction of the operating area and in predefined directions laterally thereto are oriented such that an approach or a touch of an operator within the operating area can be selectively three-dimensionally detected.

Description

Beschreibung  description
Bedien- und/oder Steuerelement mit kapazitivem Sensor Operating and / or control element with capacitive sensor
Stand der Technik State of the art
Die Erfindung betrifft ein Bedien- und/oder Steuerelement mit einem kapazitiven Sensor, insbesondere für Eingabe- oder Steuerungselemente in einem Fahrzeug, nach dem Oberbegriff des Anspruchs 1. Solche Bedien- und/oder Steuerelemente dienen insbesondere als Eingabeelemente in einem Fahrzeug und sind überwiegend als mechanisch bewegliche Teile, z. B. als Drehknopf, Taster/Schalter oder Schiebesteller etc., ausgeführt und in Verbindung mit elektromechanisch kontaktierenden Elementen realisiert. The invention relates to an operating and / or control element with a capacitive sensor, in particular for input or control elements in a vehicle, according to the preamble of claim 1. Such control and / or control elements serve in particular as input elements in a vehicle and are predominantly as mechanically moving parts, eg. B. as a knob, button / switch or sliding plate, etc., executed and realized in conjunction with electromechanically contacting elements.
Zur Erkennung einer Annäherung von Bedienern an diese Bedien- und/oder Steuerelemente werden durchaus auch kapazitive Näherungserkennungssysteme eingesetzt. Beim Einsatz von solchen kapazitiven Erkennungssystemen beschränkt sich die geometrische Anordnung in der Regel auf zwei Dimensionen oder auf eine sehr eingeschränkte dreidimensionale Anordnung, wodurch sich diese Einschränkung sich negativ auf die Ergonomie und die Auffindbarkeit und Betätigung im Fahrbetrieb auswirkt. Capacitive proximity detection systems are also used to detect an approach of operators to these controls and / or controls. When using such capacitive detection systems, the geometric arrangement is usually limited to two dimensions or a very limited three-dimensional arrangement, whereby this restriction has a negative impact on the ergonomics and the findability and operation in driving.
Es ist für sich gesehen lediglich aus der DE 10 2008 014 463 A1 bekannt, dass eine Bedieneinheit für eine Belüftungs- oder Klimaanlage eines Fahrzeugs einen dreidimensionalen Vorsprung aufweist, der mit einer sogenannten Schaltmatte zur Bedienung von elektrischen Kontakten mechanisch verbunden ist. Diese Schalt- matte weist im Bereich des Vorsprungs auch eine kapazitiv wirkende Elektrode auf, die bei Annäherung eines Bedieners einen Schaltkontakt auf der Schaltmatte beeinflussen kann. Das Prinzip eins solchen kapazitiven Näherungssensors ist für sich gesehen bekannt, da hier die Beeinflussung der elektrischen Feldlinien zwischen Kondensatorplatten durch einen Bediener erfasst wird. It is in itself known only from DE 10 2008 014 463 A1 that an operating unit for a ventilation or air conditioning system of a vehicle has a three-dimensional projection which is mechanically connected to a so-called switching mat for the operation of electrical contacts. In the region of the projection, this switching mat also has a capacitively acting electrode which, when an operator approaches, can influence a switching contact on the switching mat. The principle of such a capacitive proximity sensor is known per se, since here the influence of the electric field lines between capacitor plates is detected by an operator.
Offenbarung der Erfindung Disclosure of the invention
Die Erfindung geht von einem Bedien- und/oder Steuerelement mit einem kapazitiven Sensor aus, insbesondere für Eingabe- oder Steuerungselemente in einem Fahrzeug, mit einem auf einem dreidimensionalen Element angeordneten Sensor, der mit mindestens einem kapazitiven Sensorelement zur Annäherungserkennung ausgestattet ist. Erfindungsgemäß weist der dreidimensionale Sensor in vorteilhafter Weise eine Mehrzahl von separaten Sensorfeldern auf, die zumindest in Richtung des Bedienraumes und in vorgegebenen Richtungen seitlich dazu so ausgerichtet sind, dass eine Annäherung oder eine Berührung eines Bedieners innerhalb des Bedienraums dreidimensional selektiv detektierbar ist. Bevorzugt bestehen die Sensorfelder aus mindestens einem senkrecht in den Bedienraum ausgerichteten Sensorfeld und aus auf dem seitlichen Umfang des dreidimensionalen Elements verteilten Sensorfeldern. The invention is based on an operating and / or control element with a capacitive sensor, in particular for input or control elements in a vehicle, with a sensor arranged on a three-dimensional element, which is equipped with at least one capacitive sensor element for proximity detection. According to the invention, the three-dimensional sensor advantageously has a plurality of separate sensor fields which are laterally aligned at least in the direction of the operating space and in predetermined directions such that an approach or a touch of an operator within the operating space can be selectively detected three-dimensionally. The sensor fields preferably consist of at least one sensor field oriented vertically in the operating space and sensor fields distributed on the lateral circumference of the three-dimensional element.
Gemäß einer besonders vorteilhaften Ausführungsform sind die Sensorfelder auf einem drehknopfartigen Element angebracht, wobei die seitlichen Sensorfelder auf dem Umfang des Elements umlaufend gleichmäßig in einem Winkel von 0° bis 90° von der senkrecht in den Bedienraum weisenden Achse ausgerichtet sind. According to a particularly advantageous embodiment, the sensor fields are mounted on a knob-like element, wherein the lateral sensor fields on the circumference of the element circumferentially evenly aligned at an angle of 0 ° to 90 ° from the vertical pointing into the control room axis.
Bei einer anderen Ausführungsform können die Sensorfelder auch auf einem Schiebeelement angebracht werden, wobei die seitlichen Sensorfelder auf dem Element in der jeweiligen Schieberichtung ausgerichtet sind. Es ist auch möglich, dass die Sensorfelder auf einem Tastelement angebracht sind, wobei die Sensorfelder auf dem Element in der jeweiligen Tastrichtung ausgerichtet sind. Die Sensorfelder können beispielsweise aus auf einem Kunststoffträger angebrachten Metallschichten bestehen, die über Kontaktelemente mit Leiterbahnen einer Leiterplatte in einer elektronischen Auswerteeinheit kontaktierbar sind. Die Sensorfelder können dabei aus einzelnen Metallelementen, aus Mehrkomponen- tenspritzelementen mit einer Metallisierung, aus räumlich verformbaren Kunststoffen, vorzugsweise Folien, oder aus einer Formgebung metallhaltiger Kunststoffe bestehen. In another embodiment, the sensor fields can also be mounted on a sliding element, with the lateral sensor fields being aligned on the element in the respective sliding direction. It is also possible that the sensor fields are mounted on a probe element, wherein the sensor fields are aligned on the element in the respective scanning direction. The sensor arrays can, for example, consist of metal layers attached to a plastic carrier, which can be contacted via contact elements with conductor tracks of a printed circuit board in an electronic evaluation unit. The sensor fields may consist of individual metal elements, of multi-component spray elements with a metallization, of spatially deformable plastics, preferably foils, or of a shape of metal-containing plastics.
Vorteilhaft ist es hierbei auch, wenn die Kontaktelemente federnd ausgeführt sind. Über das Element mit den Sensorfeldern kann auf einfache Weise eine der Kon- tur des Elements angepasste Kunststofffront in Richtung des Bedienraums angeordnet werden. It is advantageous here, too, if the contact elements are designed to be resilient. Via the element with the sensor fields, a plastic front adapted to the contour of the element can be arranged in a simple manner in the direction of the operating space.
Das zuvor beschriebene erfindungsgemäße Bedien- und/oder Steuerelement ermöglicht somit eine uneingeschränkte dreidimensionale Anordnung von Felderzeugerelementen eines kapazitiven Sensors. Damit können geometrische Frei- formflächen über Tast- oder Schaltelemente bzw. über dreidimensional greifbare Dreh- oder Schiebeelemente, ausgebildet werden. Dies ermöglicht eine ergonomisch günstige Gestaltung der Bedien- und/oder Steuerelemente mit optimalen Eigenschaften bezüglich der Auffindbarkeit und Betätigung seitens eines Bedie- ners. The above-described control and / or operating element according to the invention thus enables an unrestricted three-dimensional arrangement of field generator elements of a capacitive sensor. This geometrical free-form surfaces via tactile or switching elements or three-dimensional tangible rotary or sliding elements can be formed. This makes possible an ergonomically favorable design of the operating and / or control elements with optimal properties with regard to findability and operation on the part of a user.
Mit der Erfindung werden weiterhin verschiedene Methoden zur Umsetzung der Anordnung der Sensorfelder als felderfassende Antennen vorgeschlagen, wobei diese aus einzelnen Metallelementen, Mehrkomponentenspritzelementen mit Metallisierung, Metallisierung von räumlich verformbaren Kunststoffen (z. B. Folien), Formgebung metallhaltiger Kunststoffen sowie der Kontaktierung zu einer dahinter liegenden Anordnung, z. B. einer Leiterplatte, selbstfedernd oder einzelfedernd, bestehen kann. Kurze Beschreibung der Zeichnung The invention furthermore proposes various methods for implementing the arrangement of the sensor fields as field-detecting antennas, these being made of individual metal elements, multi-component injection elements with metallization, metallization of spatially deformable plastics (eg foils), shaping of metal-containing plastics and contacting to one behind lying arrangement, for. B. a printed circuit board, selbstfedernd or einzelfedernd, may exist. Short description of the drawing
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher erläutert, wobei The invention will be explained in more detail with reference to an embodiment, wherein
Figur 1 eine erfindungsgemäße Ausführung eines Bedien- und/oder Steuerele- ments entsprechend eines Drehknopfs mit einem Sensorfeld an der Front und seitlich am Umfang angebrachten Sensorfeldern und Figure 1 shows an inventive embodiment of an operating and / or control element according to a rotary knob with a sensor array on the front and laterally on the circumference mounted sensor fields and
Figur 2 eine Darstellung eines Zusammenbaus des Bedien- und/oder Steuerelements nach der Figur 1 zwischen einer Leiterplatte und einer Kunststoffform als Frontplatte zeigt. Figure 2 shows an illustration of an assembly of the control and / or control element of Figure 1 between a circuit board and a plastic mold as a front panel shows.
Weg zur Ausführung der Erfindung Way to carry out the invention
Figur 1 zeigt ein Bedien- und/oder Steuerelement 1 mit einem weiter unten erläuterten kapazitiven Sensor, der in seiner Funktion einem Drehknopf entspricht und für Eingabe- oder Steuerungselemente in einem Fahrzeug besonders geeignet ist. Hier ist ein als Kunststoffkörper ausgebildetes dreidimensionales Element 2 vorhanden, das eine Mehrzahl von separaten Sensorfeldern 3 und 4 aufweist, wobei das Sensorfeld 3 in Richtung des Bedienraumes angeordnet ist und die Sensorfelder 4 seitlich dazu so ausgerichtet sind, dass eine Annäherung oder eine Berührung eines Bedieners innerhalb des Bedienraums dreidimensional selek- tiv über Kontakte 5 detektierbar ist. Figure 1 shows an operating and / or control element 1 with a capacitive sensor explained below, which corresponds in its function to a rotary knob and is particularly suitable for input or control elements in a vehicle. Here is a designed as a plastic body three-dimensional element 2 is present, which has a plurality of separate sensor fields 3 and 4, wherein the sensor array 3 is arranged in the direction of the control room and the sensor fields 4 are laterally aligned so that an approach or a touch of an operator within the control room three-dimensionally selectively via contacts 5 is detected.
Durch die selektiv unterschiedliche Beeinflussung der Sensorfelder 4 als Kondensatorplatten des kapazitiven Sensors kann somit quasi eine Drehbewegung de- tektiert werden, wenn die Sensorfelder 4 auf einem drehknopfartigen Element 2 angebracht sind, wobei die seitlichen Sensorfelder auf dem Umfang des Elements 2 gleichmäßig umlaufend in einem Winkel von beispielsweise 45° von der senkrecht in den Bedienraum weisenden Achse ausgerichtet sind und der Bediener mit dem Finger rotatorisch die Sensorfelder 4 umfährt. Mit dem Sensorfeld 3 kann darüber hinaus auch ein Tastenelement simuliert werden. Aus Figur 2 ist eine Darstellung eines Zusammenbaus des Bedien- und/oder Steuerelements 1 nach der Figur 1 zwischen einer Leiterplatte 6 und einer Kunststoffform 7 als Frontplatte zu entnehmen. Die Sensorfelder 3 und 4 sind hier auf dem Element 2 als Kunststoffträger aufgebrachte Metallelemente, die über even- tuell federnd ausgeführte Kontaktelemente 8 mit Leiterbahnen der Leiterplatte 6 kontaktiert sind. As a result of the selectively different influencing of the sensor arrays 4 as capacitor plates of the capacitive sensor, a rotational movement can thus be detected if the sensor arrays 4 are mounted on a knob-like element 2, wherein the lateral sensor arrays circulate uniformly on the circumference of the element 2 at an angle are oriented, for example, 45 ° of the axis pointing vertically into the control room and the operator rotates the sensor fields 4 with his finger. In addition, a key element can be simulated with the sensor field 3. FIG. 2 shows an illustration of an assembly of the operating and / or control element 1 according to FIG. 1 between a printed circuit board 6 and a plastic mold 7 as a front panel. The sensor fields 3 and 4 are here on the element 2 as a plastic carrier applied metal elements, which are contacted via possibly resiliently designed contact elements 8 with conductor tracks of the printed circuit board 6.
Die der Kontur des Elements 2 angepasste Kunststoffform 7 als Frontplatte kann dann über das Element 2 mit den Sensorfeldern 3 und 4 gestülpt werden, sodass hiermit ein Drehknopf ohne mechanisch bewegliche Teile simuliert werden kann. Anstelle der Frontplatte als Kunststoffform 7 könnte auch eine Frontplatte mit einer metallischen, z. B. galvanisch aufgebrachten Beschichtung, oder eine Frontplatte aus Metallfolie oder aus einem Formteil aus Metall vorgesehen sein. Bei Versuchen wurde festgestellt, dass sich auch bei solchen Frontplatten kapazitive Veränderungen gut durch die Sensorfelder 3 und 4 erkennen lassen. The contour of the element 2 adapted plastic mold 7 as a front panel can then be placed over the element 2 with the sensor fields 3 and 4, so hereby a knob without mechanically moving parts can be simulated. Instead of the front panel as a plastic mold 7 could also be a front panel with a metallic, z. As galvanically applied coating, or a front plate made of metal foil or a molded part made of metal. In experiments it was found that even with such front panels capacitive changes can be seen well by the sensor fields 3 and 4.

Claims

Ansprüche claims
1. Bedien- und/oder Steuerelement mit einem kapazitiven Sensor, insbesondere für Eingabe- oder Steuerungselemente in einem Fahrzeug, mit einem auf ei- nem dreidimensionalen Element (2) angeordneten Sensor, der mit mindestens einem kapazitiven Sensorelement zur Annäherungserkennung ausgestattet ist, dadurch gekennzeichnet, dass der dreidimensionale Sensor eine Mehrzahl von separaten Sensorfeldern (3,4) aufweist, die zumindest in Richtung des Bedienraumes und in vorgegebenen Richtungen seitlich dazu so ausgerichtet sind, dass eine Annäherung oder eine Berührung eines Bedie- ners innerhalb des Bedienraums dreidimensional selektiv detektierbar ist. 1. Control and / or control element with a capacitive sensor, in particular for input or control elements in a vehicle, with a sensor arranged on a three-dimensional element (2) sensor, which is equipped with at least one capacitive sensor element for proximity detection, characterized in that the three-dimensional sensor has a plurality of separate sensor fields (3, 4) which are oriented laterally at least in the direction of the operating space and in predetermined directions so that an approach or a touch of a user within the operating space can be selectively detected three-dimensionally ,
2. Bedien- und/oder Steuerelement nach Anspruch 1 , dadurch gekennzeichnet, dass die Sensorfelder (3,4) aus mindestens einem senkrecht in den Bedienraum ausgerichteten Sensorfeld (3) und aus auf dem seitlichen Umfang des dreidimensionalen Elements umlaufend verteilten Sensorfeldern (4) bestehen. 2. Operating and / or control element according to claim 1, characterized in that the sensor fields (3, 4) comprise at least one sensor field (3) aligned vertically in the control room and sensor areas (4) distributed circumferentially on the lateral circumference of the three-dimensional element. consist.
3. Bedien- und/oder Steuerelement nach Anspruch 2, dadurch gekennzeichnet, dass die Sensorfelder (3,4) auf einem drehknopfartigen Element angebracht sind, wobei die seitlichen Sensorfelder (3,4) auf dem Umfang des Elements gleichmäßig in einem Winkel von 0° bis 90° von der senkrecht in den Bedien- räum weisenden Achse ausgerichtet sind. 3. Control and / or control element according to claim 2, characterized in that the sensor fields (3,4) are mounted on a knob-like element, wherein the lateral sensor fields (3,4) on the circumference of the element uniformly at an angle of 0 ° to 90 ° from the axis pointing vertically in the operating area.
4. Bedien- und/oder Steuerelement nach Anspruch 2, dadurch gekennzeichnet, dass die Sensorfelder auf einem Schiebeelement angebracht sind, wobei die seitlichen Sensorfelder auf dem Element in der jeweiligen Schieberichtung ausgerichtet sind. 4. Control and / or control element according to claim 2, characterized in that the sensor fields are mounted on a sliding element, wherein the lateral sensor fields are aligned on the element in the respective sliding direction.
5. Bedien- und/oder Steuerelement nach Anspruch 2, 3 oder 4, dadurch gekennzeichnet, dass die Sensorfelder auf einem Tastenelement angebracht sind, wobei die Sensorfelder auf dem Tastenelement in der jeweiligen Tastrichtung ausgerichtet sind. 5. Operating and / or control element according to claim 2, 3 or 4, characterized in that the sensor fields are mounted on a key element, wherein the sensor fields are aligned on the key element in the respective scanning direction.
6. Bedien- und/oder Steuerelement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Sensorfelder (4,4) aus auf einem Kunststoffträger angebrachten Metallschichten bestehen, die über Kontaktelemente (8) mit Leiterbahnen einer Leiterplatte (6) in einer elektronischen Auswerteeinheit kontaktierbar sind. 6. Control and / or control element according to one of the preceding claims, characterized in that the sensor arrays (4,4) made of a plastic carrier metal layers consist of contact elements (8) with tracks of a printed circuit board (6) in an electronic evaluation unit are contactable.
7. Bedien- und/oder Steuerelement nach Anspruch 6, dadurch gekennzeichnet, dass die Sensorfelder (3,4) aus einzelnen Metallelementen bestehen. 7. control and / or control element according to claim 6, characterized in that the sensor fields (3,4) consist of individual metal elements.
8. Bedien- und/oder Steuerelement nach Anspruch 6, dadurch gekennzeichnet, dass die Sensorfelder (3,4) aus Mehrkomponentenspritzelementen mit einer Metallisierung bestehen. 8. control and / or control element according to claim 6, characterized in that the sensor fields (3,4) consist of multi-component injection elements with a metallization.
9. Bedien- und/oder Steuerelement nach Anspruch 6, dadurch gekennzeichnet, dass die Sensorfelder (3,4) aus räumlich verformbaren Kunststoffen, vorzugsweise Folien, bestehen. 9. control and / or control element according to claim 6, characterized in that the sensor fields (3,4) made of spatially deformable plastics, preferably films exist.
10. Bedien- und/oder Steuerelement nach Anspruch 6, dadurch gekennzeichnet, dass die Sensorfelder (3,4) aus einer Formgebung metallhaltiger Kunststoffe bestehen. 10. control and / or control element according to claim 6, characterized in that the sensor fields (3,4) consist of a shape of metal-containing plastics.
11. Bedien- und/oder Steuerelement nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, dass die Kontaktelemente (8) federnd ausgeführt sind. 11. Operating and / or control element according to one of claims 6 to 10, characterized in that the contact elements (8) are designed to be resilient.
12. Bedien- und/oder Steuerelement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass über das Element (2) mit den Sensorfeldern (3,4) eine der Kontur des Elements (2) angepasste Kunststoffform in Richtung des Bedienraums angeordnet ist. 12. Operating and / or control element according to one of the preceding claims, characterized in that on the element (2) with the sensor fields (3,4) one of the contour of the element (2) adapted plastic mold is arranged in the direction of the control room.
EP10795927A 2009-12-17 2010-12-01 Operating and/or control element having a capacitive sensor Withdrawn EP2512858A1 (en)

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DE102009058592A DE102009058592A1 (en) 2009-12-17 2009-12-17 Operating and / or control element with capacitive sensor
PCT/EP2010/007275 WO2011082745A1 (en) 2009-12-17 2010-12-01 Operating and/or control element having a capacitive sensor

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