EP3047495B1 - Operator control- and detector device having differentiated signal generation - Google Patents

Operator control- and detector device having differentiated signal generation Download PDF

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Publication number
EP3047495B1
EP3047495B1 EP13763228.7A EP13763228A EP3047495B1 EP 3047495 B1 EP3047495 B1 EP 3047495B1 EP 13763228 A EP13763228 A EP 13763228A EP 3047495 B1 EP3047495 B1 EP 3047495B1
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EP
European Patent Office
Prior art keywords
spring element
contact
circuit board
compression position
command
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Application number
EP13763228.7A
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German (de)
French (fr)
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EP3047495A1 (en
Inventor
Daniel SCHMELZLE
Stephan Spengler
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Siemens AG
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Siemens AG
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    • 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
    • H01H13/79—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 form of the contacts, e.g. interspersed fingers or helical networks
    • 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/078—Variable resistance by variable contact area or point

Definitions

  • the invention relates to a command and signaling device with an actuating tappet, which is in operative connection with a spring element, wherein the spring element is mounted on a printed circuit board.
  • Modular command and signaling devices include a command device, which may be formed, for example, as a rotary knob, pushbutton or emergency stop switch, a holder device which fixes the command device at the installation site, and a module.
  • Modules can be, for example, lighting modules, switching elements or so-called command and message modules.
  • the signal generated in the module is forwarded via a cable connection from module to module via a gateway to an SBS (Memory Programmable Controller) which evaluates the signal.
  • SBS Memory Programmable Controller
  • a mechanism within the device By actuating the command device, for example by pressing or turning, a mechanism within the device is set in motion. At the end of the chain of action, the movement of the actuator of the device is forwarded to an actuator of the module. The mechanics within the module opens or closes a contact point.
  • Microswitch or contact block consist of a contact, a Betuschistsst Schemeel, a return element and a mating contact as an additional component. To integrate a monitoring contact, these elements would need to be duplicated.
  • the US 4 249 056 A1 describes a switching device with an actuating plunger which is in operative connection with a spring element, wherein the spring element is mounted on a printed circuit board, wherein between the printed circuit board and the spring element a plurality of contact pads is arranged, which convert different compression positions of the spring element into different signals.
  • the DE 94 05 419 U1 describes a key unit of a keyboard having a key top, a keypad and a conductive layer, wherein the conductive layer is mounted below the keypad, the key top being mounted on a receiving base part which is a continuous hollow cylinder and disposed on the keypad.
  • the lower portion of the key top extends into a shaft to form a key unit, the shaft having a through bore therein and having two projecting blocks on two symmetrical sides thereof, the receiving base part having a receiving sleeve with two symmetrical therein arranged guide grooves, that below the two guide grooves two stop and guide grooves are provided which are aligned with the guide grooves, but wherein the stop and guide grooves are slightly lower than the two guide grooves and that the lower part of the stop and guide grooves in the receiving sleeve having an oblique flange for receiving a tapered spring which is biased between the shaft and the receiving sleeve to retain the key unit in the stop and guide grooves.
  • the DE 22 47 905 A1 discloses a key switch with an actuating plunger, which is in operative connection with a spring element, wherein the spring element is mounted on a printed circuit board, and wherein between the circuit board and spring element is arranged a plurality of designed as concentric rings contact pads.
  • the object of the present invention is to provide a command and signaling device, which allows the simplest and safest signal generation.
  • a command and signaling device with the features of claim 1. Further embodiments of the invention will become apparent from the description and the drawings. According to the invention this object is achieved by a command and signaling device with an actuating tappet, which is in operative connection with a spring element, wherein the spring element is mounted on a printed circuit board.
  • the invention is characterized in that a plurality of contact pads, which transfer different compression positions of the spring element into different signals, are arranged between the printed circuit board and the spring element.
  • the essence of the invention consists in that a plurality of contact pads, preferably three, in the form of concentric rings are arranged on a printed circuit board.
  • the middle contact point is the base here. Since the forces of the spring element, so the contact spring in the signal generation are higher, increases the contact reliability of the signal contact by the choice of the middle contact pad as a basis.
  • the spring element In the relaxed starting position of the spring element, which has a conical and a cylindrical portion, the spring element is located above the pads on the circuit board and touches only the outer Padgeometrie or no pad.
  • This first compression position forms the so-called monitoring or Monitoring contact from. It is determined whether a device is in the designated position, or it is determined if it is removed from there or dropped.
  • the spring element If the spring element is further compressed, it reaches a second compression position.
  • the spring element also touches the inner pad geometry.
  • the current now flows through the spring element between the middle and the inner pad and between the inner and the outer pad. With the touch of the inner pad is connected, however, that now a command and message signal can be generated.
  • the conical part of the spring element is pressed completely together.
  • the actuating tappet can be further pressed, wherein now the cylindrical part of the spring element is further compressed without the switching signal changes.
  • the spring element according to the invention also assumes the function of a return element for the actuating tappet.
  • the contact spring according to the invention thus combines a monitoring contact, a signal generating contact and a restoring element in a component. Furthermore, after the generation of the monitoring and the contact signal, the spring can be pressed further.
  • the signal system of the spring can thus be adapted individually to the actuation paths.
  • the switching points can be freely defined by the geometry of the spring and the arrangement of the contact pads on the circuit board. Economically speaking, the integration of several functional elements in a component results in a considerable cost-saving potential.
  • the spring element has a conical and a cylindrical part.
  • the conical part of the spring element according to the invention forms the contact region to the contact pads.
  • the cylindrical part of the invention Spring element is designed so that it supports in a recess of the actuating plunger and thus can reliably transmit a change in position of the actuating plunger.
  • the contact pads are designed as concentric rings. The contact pads thus adapt in their geometry to the conical part of the spring element according to the invention. The geometry match between spring element and contact pads allows secure contact between the spring element and contact pads.
  • the spring element has three functions, the function as a monitoring contact in the first compression position, the function as a command and message signal in the second compression position and the function as a return element for the actuating plunger.
  • the command and signaling device has a housing in which an actuating tappet is mounted.
  • the actuating plunger is operatively connected to a spring element having a conical part and a cylindrical part.
  • the cylindrical part is mounted in a recess of the actuating plunger.
  • the conical part of the spring element rests on a printed circuit board, wherein between the circuit board and the conical part of the spring element contact pads are arranged, which are formed as concentric rings. In the relaxed starting position of the spring element according to the invention, the spring element is above the contact pads on the circuit board and touches only the outer Padgeometrie or no pad.
  • the spring element according to the invention In the first compression position, the spring element according to the invention is compressed via the plunger and initially touches the outer turn of the spring element, ie the outer pad geometry. If the spring element further compressed, the middle pad is also touched by the spring coils. A current can now flow between the two pads via the spring element.
  • the first compression position of the spring element according to the invention corresponds to the monitoring or monitoring contact. In this case, it is determined whether a command and signaling device is in the designated position.
  • the spring element according to the invention is further compressed, the spring element also touches the inner pad geometry and the second compression position is reached. The current now flows in turn via the spring element between the middle and the inner pad and further between the inner and the outer pad. Touching the inner pad may generate a command or alert signal.
  • the contact spring according to the invention combines a monitoring contact, a signal generating contact and a restoring element in a component. Furthermore, after the generation of the monitoring and the contact signal, the spring element can be pressed further.
  • the signal system of the spring element can thus be adapted individually to the actuation paths.
  • the switching points can be freely defined by the geometry of the spring element and the arrangement of the contact pads on the circuit board.
  • Fig. 1 an inventive command and signaling device is shown, which has a housing 1 in which an actuating plunger 2 is mounted.
  • the actuating tappet 2 is in operative connection with a spring element 3, which has a conical part 4 and a cylindrical part 5.
  • the cylindrical part 5 is mounted in a recess of the actuating tappet 2.
  • the conical part 4 of the spring element 3 rests on a printed circuit board 6.
  • Fig. 2 also shows the command and signaling device according to the invention, wherein between the circuit board 6 and the conical part 4 of the spring element 3 contact pads 7 are arranged, which are formed as concentric rings. How out Fig. 2 shows, the command and signaling device on a plurality of contact pads 7, which are adapted in their spacing to the individual spring rings of the conical part 4 of the spring element 3.
  • Fig. 3 the spring element 3 according to the invention with the conical part 4 and the cylindrical part 5 is shown, which is arranged on corresponding contact pads 7 of a printed circuit board 6.
  • Fig. 4 shows an embodiment of the spring element 3 according to the invention in the relaxed starting position.
  • Fig. 5 shows this representation in section.
  • the spring element according to the invention which has a conical part 4 and a cylindrical part 5, is located in this relaxed starting position above the contact pads 7 on the circuit board 6 and touches only the outer Padgeometrie or no pad.
  • Fig. 6 shows the spring element 3 according to the invention in a first compression position.
  • Fig. 7 shows this first compression position in the sectional view. If the spring element 3 is compressed via an actuating tappet 2, first the outer turn of the spring element 3 touches the outer pad geometry. If the spring element further compressed, the middle pad is also touched by the spring coils. A current can now flow between the two contact pads via the spring element.
  • Fig. 8 shows the spring element 3 according to the invention in the second compression position.
  • Fig. 9 This second compression position is shown in the sectional view. If the spring element 3 is further compressed, the spring element 3 also touches the inner pad geometry. The current now flows in turn via the spring element between the middle and the inner pad and further between the inner and the outer pad. Touching the inner pad may generate a command or alert signal.
  • Fig. 10 shows the spring element 3 according to the invention in a further guided compression position after the second compression position.
  • Fig. 11 shows this representation in section.
  • the conical part 4 of the spring element 3 is now completely compressed.
  • the actuating plunger 2 can now be further pressed, wherein the cylindrical part 5 of the spring element 3 is further compressed, without the switching signal changes.
  • the contact spring according to the invention combines a monitoring contact, a signal generating contact and a restoring element in a component. Furthermore, after the generation of the monitoring and the contact signal, the spring element can be pressed further.
  • the signal system of the spring element can thus be adapted individually to the actuation paths.
  • the switching points can be freely defined by the geometry of the spring element and the arrangement of the contact pads on the circuit board.

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  • Push-Button Switches (AREA)
  • Measuring Leads Or Probes (AREA)
  • Springs (AREA)

Description

Die Erfindung betrifft ein Befehls- und Meldegerät mit einem Betätigungsstößel, welcher in Wirkverbindung mit einem Federelement steht, wobei das Federelement auf einer Leiterplatte gelagert ist.The invention relates to a command and signaling device with an actuating tappet, which is in operative connection with a spring element, wherein the spring element is mounted on a printed circuit board.

Modular aufgebaute Befehls- und Meldegeräte umfassen ein Befehlsgerät, das zum Beispiel als Drehknebel, Drucktaster oder Not-Aus-Schalter ausgebildet sein kann, eine Haltervorrichtung, welche das Befehlsgerät am Einbauort befestigt, sowie ein Modul. Module können zum Beispiel Leuchtmodule, Schaltelemente oder auch so genannte Befehls- und Meldemodule sein. Das Signal, welches im Modul erzeugt wird, wird über eine Kabelverbindung von Modul zu Modul über einen Gateway zu einer SBS (Speicher-Programmierbare-Steuerung), die das Signal auswertet, weitergeleitet.Modular command and signaling devices include a command device, which may be formed, for example, as a rotary knob, pushbutton or emergency stop switch, a holder device which fixes the command device at the installation site, and a module. Modules can be, for example, lighting modules, switching elements or so-called command and message modules. The signal generated in the module is forwarded via a cable connection from module to module via a gateway to an SBS (Memory Programmable Controller) which evaluates the signal.

Durch die Betätigung des Befehlsgerätes, zum Beispiel durch Drücken oder Drehen, wird eine Mechanik innerhalb des Geräts in Bewegung gesetzt. Am Ende der Wirkkette wird die Bewegung des Betätigungselements des Geräts auf ein Betätigungselement des Moduls weitergeleitet. Die Mechanik innerhalb des Moduls öffnet oder schließt eine Kontaktstelle.By actuating the command device, for example by pressing or turning, a mechanism within the device is set in motion. At the end of the chain of action, the movement of the actuator of the device is forwarded to an actuator of the module. The mechanics within the module opens or closes a contact point.

Die bestehenden technischen Lösungen zur Signalerzeugung wie Microswitch oder Kontaktblock bestehen aus einem Kontakt, einem Betätgungsstößel, einem Rückstellelement sowie einem Gegenkontakt als Zusatzbauteil. Zur Integration eines Überwachungskontakts müssten diese Elemente in doppelter Ausführung vorhanden sein.The existing technical solutions for signal generation such as Microswitch or contact block consist of a contact, a Betätigungsstößel, a return element and a mating contact as an additional component. To integrate a monitoring contact, these elements would need to be duplicated.

Die US 4 249 056 A1 beschreibt ein Schaltgerät mit einem Betätigungsstößel, welcher in Wirkverbindung mit einem Federelement steht, wobei das Federelement auf einer Leiterplatte gelagert ist, wobei zwischen Leiterplatte und Federelement eine Mehrzahl an Kontaktpads angeordnet ist, welche unterschiedliche Kompressionsstellungen des Federelements in unterschiedliche Signale überführen.The US 4 249 056 A1 describes a switching device with an actuating plunger which is in operative connection with a spring element, wherein the spring element is mounted on a printed circuit board, wherein between the printed circuit board and the spring element a plurality of contact pads is arranged, which convert different compression positions of the spring element into different signals.

Die DE 94 05 419 U1 beschreibt eine Tasteneinheit einer Tastatur mit einem Tastenoberteil, einer Tastaturplatte und einer leitenden Schicht, wobei die leitende Schicht unterhalb der Tastaturplatte angebracht ist, wobei das Tastenoberteil auf einem Aufnahmebasisteil angebracht ist, das ein durchgehend hohler Zylinder ist, und das auf der Tastaturplatte angeordnet ist. Es ist weiterhin vorgesehen, dass der untere Abschnitt des Tastenoberteils sich in einen Schaft erstreckt, um eine Tasteneinheit zu bilden, dass der Schaft darin eine Durchgangsbohrung aufweist und zwei vorspringende Blöcke auf zwei symmetrischen Seiten desselben aufweist, dass das Aufnahmebasisteil eine Aufnahmehülse mit zwei darin symmetrischen angeordneten Führungsnuten aufweist, dass unterhalb der zwei Führungsnuten zwei Anschlag- und Führungsnuten vorgesehen sind, die zu den Führungsnuten ausgerichtet sind, wobei aber die Anschlag- und Führungsnuten geringfügig tieferliegend sind, als die zwei Führungsnuten und dass der untere Teil der Anschlag- und Führungsnuten in der Aufnahmehülse einen schrägen Flansch zur Aufnahme einer kegelförmigen Feder aufweist, die zwischen dem Schaft und der Aufnahmehülse vorbelastet ist, um die Tasteneinheit in den Anschlag- und Führungsnuten zurückzuhalten.The DE 94 05 419 U1 describes a key unit of a keyboard having a key top, a keypad and a conductive layer, wherein the conductive layer is mounted below the keypad, the key top being mounted on a receiving base part which is a continuous hollow cylinder and disposed on the keypad. It is further contemplated that the lower portion of the key top extends into a shaft to form a key unit, the shaft having a through bore therein and having two projecting blocks on two symmetrical sides thereof, the receiving base part having a receiving sleeve with two symmetrical therein arranged guide grooves, that below the two guide grooves two stop and guide grooves are provided which are aligned with the guide grooves, but wherein the stop and guide grooves are slightly lower than the two guide grooves and that the lower part of the stop and guide grooves in the receiving sleeve having an oblique flange for receiving a tapered spring which is biased between the shaft and the receiving sleeve to retain the key unit in the stop and guide grooves.

Die DE 22 47 905 A1 offenbart einen Tastschalter mit einem Betätigungsstößel, welcher in Wirkverbindung mit einem Federelement steht, wobei das Federelement auf einer Leiterplatte gelagert ist, und wobei zwischen Leiterplatte und Federelement eine Mehrzahl an als konzentrische Ringe ausgeführte Kontaktpads angeordnet ist.The DE 22 47 905 A1 discloses a key switch with an actuating plunger, which is in operative connection with a spring element, wherein the spring element is mounted on a printed circuit board, and wherein between the circuit board and spring element is arranged a plurality of designed as concentric rings contact pads.

Demgemäß besteht die Aufgabe der vorliegenden Erfindung darin, ein Befehls- und Meldegerät zu schaffen, welches eine möglichst einfache und sichere Signalerzeugung ermöglicht.Accordingly, the object of the present invention is to provide a command and signaling device, which allows the simplest and safest signal generation.

Diese Aufgabe wird erfindungsgemäß durch ein Befehls- und Meldegerät mit den Merkmalen des Patentanspruchs 1 gelöst. Weitere Ausführungsbeispiele der Erfindung ergeben sich aus der Beschreibung sowie der Zeichnung. Erfindungsgemäß wird diese Aufgabe durch ein Befehls- und Meldegerät mit einem Betätigungsstößel gelöst, welcher in Wirkverbindung mit einem Federelement steht, wobei das Federelement auf einer Leiterplatte gelagert ist. Die Erfindung zeichnet sich dadurch aus, dass zwischen Leiterplatte und Federelement eine Mehrzahl an Kontaktpads angeordnet ist, welche unterschiedliche Kompressionsstellungen des Federelements in unterschiedliche Signale überführen.This object is achieved by a command and signaling device with the features of claim 1. Further embodiments of the invention will become apparent from the description and the drawings. According to the invention this object is achieved by a command and signaling device with an actuating tappet, which is in operative connection with a spring element, wherein the spring element is mounted on a printed circuit board. The invention is characterized in that a plurality of contact pads, which transfer different compression positions of the spring element into different signals, are arranged between the printed circuit board and the spring element.

Der Kern der Erfindung besteht darin, dass auf einer Leiterplatte eine Mehrzahl an Kontaktpads, vorzugsweise drei, in Form von konzentrischen Ringen, angeordnet sind. Der mittlere Kontaktpunkt ist hierbei die Basis. Da die Kräfte des Federelements, also der Kontaktfeder bei der Signalerzeugung höher sind, erhöht sich durch die Wahl des mittleren Kontaktpads als Basis die Kontaktsicherheit des Signalkontaktes.The essence of the invention consists in that a plurality of contact pads, preferably three, in the form of concentric rings are arranged on a printed circuit board. The middle contact point is the base here. Since the forces of the spring element, so the contact spring in the signal generation are higher, increases the contact reliability of the signal contact by the choice of the middle contact pad as a basis.

In der entspannten Ausgangsstellung des Federelements, welche einen konischen sowie einen zylindrischen Anteil aufweist, befindet sich das Federelement oberhalb von den Pads auf der Leiterplatte und berührt hierbei nur die äußere Padgeometrie oder gar kein Pad.In the relaxed starting position of the spring element, which has a conical and a cylindrical portion, the spring element is located above the pads on the circuit board and touches only the outer Padgeometrie or no pad.

Erreicht nun das erfindungsgemäße Federelement eine erste Kompressionsstellung, wobei es über einen Stößel komprimiert wird, berührt zunächst die äußere Windung des Federelements die äußere Padgeometrie. Wird das erfindungsgemäße Federelement weiter komprimiert, wird das mittlere Pad ebenfalls von den Federwindungen berührt. Ein Strom kann nun zwischen den beiden Pads über das Federelement fließen. Diese erste Kompressionsstellung bildet den so genannten Monitoring- oder Überwachungskontakt ab. Es wird dabei festgestellt, ob ein Gerät sich auf der dafür vorgesehenen Position befindet, beziehungsweise es wird festgestellt, wenn es von dort abgenommen wird oder abgefallen ist.Now reaches the spring element according to the invention a first compression position, wherein it is compressed by a plunger, first touches the outer turn of the spring element, the outer pad geometry. If the spring element according to the invention further compressed, the middle pad is also touched by the spring coils. A current can now flow between the two pads via the spring element. This first compression position forms the so-called monitoring or Monitoring contact from. It is determined whether a device is in the designated position, or it is determined if it is removed from there or dropped.

Wird das Federelement weiter komprimiert, so erreicht es eine zweite Kompressionsstellung. Dabei berührt das Federelement auch die innere Padgeometrie. Der Strom fließt nun über das Federelement zwischen dem mittleren und dem inneren Pad sowie zwischen dem inneren und dem äußeren Pad. Mit der Berührung des inneren Pads ist jedoch verbunden, dass nun ein Befehls- und Meldesignal erzeugt werden kann.If the spring element is further compressed, it reaches a second compression position. The spring element also touches the inner pad geometry. The current now flows through the spring element between the middle and the inner pad and between the inner and the outer pad. With the touch of the inner pad is connected, however, that now a command and message signal can be generated.

Es ist außerdem möglich, dass der konische Teil des Federelements komplett zusammen gedrückt wird. Der Betätigungsstößel kann weiter gedrückt werden, wobei nun der zylindrische Teil des Federelements weiter komprimiert wird, ohne dass sich das Schaltsignal ändert. Zudem übernimmt das erfindungsgemäße Federelement auch die Funktion eines Rückstellelements für den Betätigungsstößel.It is also possible that the conical part of the spring element is pressed completely together. The actuating tappet can be further pressed, wherein now the cylindrical part of the spring element is further compressed without the switching signal changes. In addition, the spring element according to the invention also assumes the function of a return element for the actuating tappet.

Die erfindungsgemäße Kontaktfeder kombiniert somit einen Überwachungskontakt, einen Signalerzeugungskontakt sowie ein Rückstellelement in einem Bauteil. Des Weiteren kann nach der Erzeugung des Monitoring- sowie des Kontaktsignals die Feder weiter gedrückt werden. Das Signalsystem der Feder kann somit individuell an die Betätigungswege angepasst werden. Des Weiteren können durch die Geometrie der Feder sowie die Anordnung der Kontaktpads auf der Leiterplatte, die Schaltpunkte frei definiert werden. Wirtschaftlich betrachtet ergibt sich durch die Integration von mehreren Funktionselementen in einem Bauteil ein erhebliches Kosteneinsparpotential. Erfindungsgemäß ist vorgesehen, dass das Federelement einen konischen und einen zylindrischen Teil aufweist. Der konische Teil des erfindungsgemäßen Federelements bildet dabei den Kontaktbereich zu den Kontaktpads aus. Der zylindrische Teil des erfindungsgemäßen Federelements ist so ausgebildet, dass er in einer Ausnehmung des Betätigungsstößels lagert und somit zuverlässig eine Stellungsänderung des Betätigungsstößels übertragen kann. Erfindungsgemäß sind die Kontaktpads als konzentrische Ringe ausführt. Die Kontaktpads passen sich somit in ihrer Geometrie dem konischen Teil des erfindungsgemäßen Federelements an. Die Geometrieübereinstimmung zwischen Federelement und Kontaktpads ermöglicht eine sichere Kontaktierung zwischen Federelement und Kontaktpads.The contact spring according to the invention thus combines a monitoring contact, a signal generating contact and a restoring element in a component. Furthermore, after the generation of the monitoring and the contact signal, the spring can be pressed further. The signal system of the spring can thus be adapted individually to the actuation paths. Furthermore, the switching points can be freely defined by the geometry of the spring and the arrangement of the contact pads on the circuit board. Economically speaking, the integration of several functional elements in a component results in a considerable cost-saving potential. According to the invention it is provided that the spring element has a conical and a cylindrical part. The conical part of the spring element according to the invention forms the contact region to the contact pads. The cylindrical part of the invention Spring element is designed so that it supports in a recess of the actuating plunger and thus can reliably transmit a change in position of the actuating plunger. According to the invention, the contact pads are designed as concentric rings. The contact pads thus adapt in their geometry to the conical part of the spring element according to the invention. The geometry match between spring element and contact pads allows secure contact between the spring element and contact pads.

Es entspricht der Erfindung, dass das Federelement drei Funktionen aufweist, die Funktion als Überwachungskontakt in der ersten Kompressionsstellung, die Funktion als Befehls- und Meldesignal in der zweiten Kompressionsstellung und die Funktion als Rückstellelement für den Betätigungsstößel. Dies hat insbesondere wirtschaftliche Vorteile, da hier mehrere Funktionselemente in einem Bauteil integriert werden und somit ein erhebliches Kosteneinsparpotential besteht.It corresponds to the invention that the spring element has three functions, the function as a monitoring contact in the first compression position, the function as a command and message signal in the second compression position and the function as a return element for the actuating plunger. This has particular economic advantages, since here several functional elements are integrated in one component and thus there is a considerable cost saving potential.

Das erfindungsgemäße Befehls- und Meldegerät weist ein Gehäuse auf, in welchem ein Betätigungsstößel gelagert ist. Der Betätigungsstößel steht in Wirkverbindung mit einem Federelement, das einen konischen Teil und einen zylindrischen Teil aufweist. Der zylindrische Teil ist in einer Ausnehmung des Betätigungsstößels gelagert. Der konische Teil des Federelements lagert auf einer Leiterplatte, wobei zwischen Leiterplatte und konischem Teil des Federelements Kontaktpads angeordnet sind, die als konzentrische Ringe ausgeformt sind. In der entspannten Ausgangsstellung des erfindungsgemäßen Federelements befindet sich das Federelement oberhalb von den Kontaktpads auf der Leiterplatte und berührt hierbei nur die äußere Padgeometrie oder gar kein Pad.The command and signaling device according to the invention has a housing in which an actuating tappet is mounted. The actuating plunger is operatively connected to a spring element having a conical part and a cylindrical part. The cylindrical part is mounted in a recess of the actuating plunger. The conical part of the spring element rests on a printed circuit board, wherein between the circuit board and the conical part of the spring element contact pads are arranged, which are formed as concentric rings. In the relaxed starting position of the spring element according to the invention, the spring element is above the contact pads on the circuit board and touches only the outer Padgeometrie or no pad.

In der ersten Kompressionsstellung wird das erfindungsgemäße Federelement über den Stößel komprimiert und berührt zunächst die äußere Windung des Federelements, also die äußere Padgeometrie. Wird das Federelement weiter komprimiert, wird das mittlere Pad ebenfalls von den Federwindungen berührt. Ein Strom kann nun zwischen den beiden Pads über das Federelement fließen. Die erste Kompressionsstellung des erfindungsgemäßen Federelements entspricht dem Monitoring- oder Überwachungskontakt. Hierbei wird festgestellt, ob ein Befehls- und Meldegerät sich auf der dafür vorgesehenen Position befindet.In the first compression position, the spring element according to the invention is compressed via the plunger and initially touches the outer turn of the spring element, ie the outer pad geometry. If the spring element further compressed, the middle pad is also touched by the spring coils. A current can now flow between the two pads via the spring element. The first compression position of the spring element according to the invention corresponds to the monitoring or monitoring contact. In this case, it is determined whether a command and signaling device is in the designated position.

Wird das erfindungsgemäße Federelement weiter komprimiert, berührt das Federelement auch die innere Padgeometrie und die zweite Kompressionsstellung ist erreicht. Der Strom fließt nun wiederum über das Federelement zwischen dem mittleren und dem inneren Pad sowie weiterhin zwischen dem inneren und dem äußeren Pad. Mit der Berührung des inneren Pads kann ein Befehls- oder Meldesignal erzeugt werden.If the spring element according to the invention is further compressed, the spring element also touches the inner pad geometry and the second compression position is reached. The current now flows in turn via the spring element between the middle and the inner pad and further between the inner and the outer pad. Touching the inner pad may generate a command or alert signal.

Die erfindungsgemäße Kontaktfeder kombiniert einen Überwachungskontakt, einen Signalerzeugungskontakt sowie ein Rückstellelement in einem Bauteil. Des Weiteren kann nach der Erzeugung des Monitoring- sowie des Kontaktsignals das Federelement weiter gedrückt werden. Das Signalsystem des Federelements kann somit individuell an die Betätigungswege angepasst werden. Des Weiteren können durch die Geometrie des Federelements sowie die Anordnung der Kontaktpads auf der Leiterplatte die Schaltpunkte frei definiert werden. Durch die Integration von mehreren Funktionselementen in einem Bauteil bietet diese Lösung erhebliches Kosteneinsparpotential.The contact spring according to the invention combines a monitoring contact, a signal generating contact and a restoring element in a component. Furthermore, after the generation of the monitoring and the contact signal, the spring element can be pressed further. The signal system of the spring element can thus be adapted individually to the actuation paths. Furthermore, the switching points can be freely defined by the geometry of the spring element and the arrangement of the contact pads on the circuit board. By integrating multiple functional elements in one component, this solution offers significant cost savings potential.

Weitere Vorteile und Ausführungen der Erfindung werden nachfolgend anhand eines Ausführungsbeispiels sowie anhand der Zeichnung erläutert.Further advantages and embodiments of the invention will be explained below with reference to an embodiment and with reference to the drawing.

Dabei zeigen schematisch:

  • Fig. 1 in einer Schnittdarstellung ein erfindungsgemäßes Befehls- und Meldegerät mit einem Betätigungsstößel, einem Federelement und einer Leiterplatte;
  • Fig. 2 in einer perspektivischen Darstellung das erfindungsgemäße Befehls- und Meldegerät nach Fig. 1 mit der Positionierung der Kontaktpads zwischen Federelement und Leiterplatte;
  • Fig. 3 in einer perspektivischen Darstellung die Positionierung eines erfindungsgemäßen Federelements auf Kontaktpads einer Leiterplatte;
  • Fig. 4 in einer perspektivischen Darstellung ein Ausführungsbeispiel eines Federelements in der entspannten Ausgangsstellung;
  • Fig. 5 in einer Schnittdarstellung das Federelement nach Fig. 4 in der entspannten Ausgangsstellung;
  • Fig. 6 in einer perspektivischen Darstellung ein erfindungsgemäßes Federelement in der ersten Kompressionsstellung;
  • Fig. 7 in einer Schnittdarstellung das Federelement nach Fig. 6 in der ersten Kompressionsstellung;
  • Fig. 8 in einer perspektivischen Darstellung ein erfindungsgemäßes Federelement in der zweiten Kompressionsstellung;
  • Fig. 9 in einer Schnittdarstellung das Federelement nach Fig. 8 in der zweiten Kompressionsstellung;
  • Fig. 10 in einer perspektivischen Darstellung ein erfindungsgemäßes Federelement in einer Kompressionsstellung nach der zweiten Kompressionsstellung;
  • Fig. 11 in einer Schnittdarstellung das Federelement nach Fig. 10 in einer weitergeführten Kompressionsstellung nach der zweiten Kompressionsstellung.
Here are shown schematically:
  • Fig. 1 in a sectional view of an inventive command and signaling device with an actuating plunger, a spring element and a circuit board;
  • Fig. 2 in a perspective view the command and signaling device according to the invention Fig. 1 with the positioning of the contact pads between spring element and circuit board;
  • Fig. 3 in a perspective view of the positioning of a spring element according to the invention on contact pads of a printed circuit board;
  • Fig. 4 in a perspective view of an embodiment of a spring element in the relaxed starting position;
  • Fig. 5 in a sectional view of the spring element after Fig. 4 in the relaxed starting position;
  • Fig. 6 in a perspective view of an inventive spring element in the first compression position;
  • Fig. 7 in a sectional view of the spring element after Fig. 6 in the first compression position;
  • Fig. 8 in a perspective view of an inventive spring element in the second compression position;
  • Fig. 9 in a sectional view of the spring element after Fig. 8 in the second compression position;
  • Fig. 10 in a perspective view of an inventive spring element in a compression position after the second compression position;
  • Fig. 11 in a sectional view of the spring element after Fig. 10 in a continued compression position after the second compression position.

In Fig. 1 ist ein erfindungsgemäßes Befehls- und Meldegerät dargestellt, das ein Gehäuse 1 aufweist, in welchem ein Betätigungsstößel 2 gelagert ist. Der Betätigungsstößel 2 steht in Wirkverbindung mit einem Federelement 3, das einen konischen Teil 4 und einen zylindrischen Teil 5 aufweist. Der zylindrische Teil 5 ist in einer Ausnehmung des Betätigungsstößels 2 gelagert. Der konische Teil 4 des Federelements 3 lagert auf einer Leiterplatte 6.In Fig. 1 an inventive command and signaling device is shown, which has a housing 1 in which an actuating plunger 2 is mounted. The actuating tappet 2 is in operative connection with a spring element 3, which has a conical part 4 and a cylindrical part 5. The cylindrical part 5 is mounted in a recess of the actuating tappet 2. The conical part 4 of the spring element 3 rests on a printed circuit board 6.

Fig. 2 zeigt ebenfalls das erfindungsgemäße Befehls- und Meldegerät, wobei zwischen der Leiterplatte 6 und dem konischen Teil 4 des Federelements 3 Kontaktpads 7 angeordnet sind, die als konzentrische Ringe ausgeformt sind. Wie aus Fig. 2 hervorgeht, weist das Befehls- und Meldegerät eine Mehrzahl an Kontaktpads 7 auf, die in ihrer Beabstandung an die einzelnen Federringe des konischen Teils 4 des Federelements 3 angepasst sind. Fig. 2 also shows the command and signaling device according to the invention, wherein between the circuit board 6 and the conical part 4 of the spring element 3 contact pads 7 are arranged, which are formed as concentric rings. How out Fig. 2 shows, the command and signaling device on a plurality of contact pads 7, which are adapted in their spacing to the individual spring rings of the conical part 4 of the spring element 3.

In Fig. 3 ist das erfindungsgemäße Federelement 3 mit dem konischen Teil 4 und dem zylindrischen Teil 5 dargestellt, das auf entsprechenden Kontaktpads 7 einer Leiterplatte 6 angeordnet ist.In Fig. 3 the spring element 3 according to the invention with the conical part 4 and the cylindrical part 5 is shown, which is arranged on corresponding contact pads 7 of a printed circuit board 6.

Fig. 4 zeigt ein Ausführungsbeispiel des erfindungsgemäßen Federelements 3 in der entspannten Ausgangsstellung. Fig. 5 zeigt diese Darstellung im Schnitt. Das erfindungsgemäße Federelement, welches einen konischen Teil 4 und einen zylindrischen Teil 5 aufweist, befindet sich in dieser entspannten Ausgangsstellung oberhalb der Kontaktpads 7 auf der Leiterplatte 6 und berührt hierbei nur die äußere Padgeometrie oder gar kein Pad. Fig. 4 shows an embodiment of the spring element 3 according to the invention in the relaxed starting position. Fig. 5 shows this representation in section. The spring element according to the invention, which has a conical part 4 and a cylindrical part 5, is located in this relaxed starting position above the contact pads 7 on the circuit board 6 and touches only the outer Padgeometrie or no pad.

Fig. 6 zeigt das erfindungsgemäße Federelement 3 in einer ersten Kompressionsstellung. Fig. 7 zeigt diese erste Kompressionsstellung in der Schnittdarstellung. Wird das Federelement 3 über einen Betätigungsstößel 2 komprimiert, berührt zunächst die äußere Windung des Federelements 3 die äußere Padgeometrie. Wird das Federelement weiter komprimiert, wird das mittlere Pad ebenfalls von den Federwindungen berührt. Ein Strom kann nun zwischen den beiden Kontaktpads über das Federelement fließen. Fig. 6 shows the spring element 3 according to the invention in a first compression position. Fig. 7 shows this first compression position in the sectional view. If the spring element 3 is compressed via an actuating tappet 2, first the outer turn of the spring element 3 touches the outer pad geometry. If the spring element further compressed, the middle pad is also touched by the spring coils. A current can now flow between the two contact pads via the spring element.

Fig. 8 zeigt das erfindungsgemäße Federelement 3 in der zweiten Kompressionsstellung. In Fig. 9 ist diese zweite Kompressionsstellung in der Schnittdarstellung dargestellt. Wird das Federelement 3 weiter komprimiert, berührt das Federelement 3 auch die innere Padgeometrie. Der Strom fließt nun wiederum über das Federelement zwischen dem mittleren und dem inneren Pad sowie weiterhin zwischen dem inneren und dem äußeren Pad. Mit der Berührung des inneren Pads kann ein Befehls- oder Meldesignal erzeugt werden. Fig. 8 shows the spring element 3 according to the invention in the second compression position. In Fig. 9 This second compression position is shown in the sectional view. If the spring element 3 is further compressed, the spring element 3 also touches the inner pad geometry. The current now flows in turn via the spring element between the middle and the inner pad and further between the inner and the outer pad. Touching the inner pad may generate a command or alert signal.

Fig. 10 zeigt das erfindungsgemäße Federelement 3 in einer weiter geführten Kompressionsstellung nach der zweiten Kompressionsstellung. Fig. 11 zeigt diese Darstellung im Schnitt. Der konische Teil 4 des Federelements 3 ist nun komplett zusammengedrückt. Der Betätigungsstößel 2 kann nun weiter gedrückt werden, wobei der zylindrische Teil 5 des Federelements 3 weiter komprimiert wird, ohne dass sich das Schaltsignal ändert. Fig. 10 shows the spring element 3 according to the invention in a further guided compression position after the second compression position. Fig. 11 shows this representation in section. The conical part 4 of the spring element 3 is now completely compressed. The actuating plunger 2 can now be further pressed, wherein the cylindrical part 5 of the spring element 3 is further compressed, without the switching signal changes.

Die erfindungsgemäße Kontaktfeder kombiniert einen Überwachungskontakt, einen Signalerzeugungskontakt sowie ein Rückstellelement in einem Bauteil. Des Weiteren kann nach der Erzeugung des Monitoring- sowie des Kontaktsignals das Federelement weiter gedrückt werden. Das Signalsystem des Federelements kann somit individuell an die Betätigungswege angepasst werden. Des Weiteren können durch die Geometrie des Federelements sowie die Anordnung der Kontaktpads auf der Leiterplatte die Schaltpunkte frei definiert werden. Durch die Integration von mehreren Funktionselementen in einem Bauteil bietet diese Lösung erhebliches Kosteneinsparpotential.The contact spring according to the invention combines a monitoring contact, a signal generating contact and a restoring element in a component. Furthermore, after the generation of the monitoring and the contact signal, the spring element can be pressed further. The signal system of the spring element can thus be adapted individually to the actuation paths. Furthermore, the switching points can be freely defined by the geometry of the spring element and the arrangement of the contact pads on the circuit board. By integrating multiple functional elements in one component, this solution offers significant cost savings potential.

Claims (1)

  1. Command and signaling device comprising an actuating tappet (2) which is operatively connected to a spring element (3), wherein the spring element (3) is mounted on a printed circuit board (6), wherein a plurality of contact pads (7) designed as concentric rings are arranged between the printed circuit board (6) and the spring element (3), said contact pads converting different compression positions of the spring element (3) into different signals, characterized in that the spring element (3) has three functions, the function of a monitoring contact in the first compression position, the function of a command and message signal in the second compression position, and the function of a return element for the actuating tappet (2), and wherein the first compression position of the spring element (3) is reached when the spring element (3) makes contact with the outer and central pad geometry, and wherein the second compression position is reached when the spring element (3) makes contact with the inner pad geometry, wherein the spring element (3) has a conical part (4) and a cylindrical part (5).
EP13763228.7A 2013-09-16 2013-09-16 Operator control- and detector device having differentiated signal generation Active EP3047495B1 (en)

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PCT/EP2013/069098 WO2015036048A1 (en) 2013-09-16 2013-09-16 Operator control- and detector device having differentiated signal generation

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JP6874607B2 (en) * 2017-09-01 2021-05-19 オムロン株式会社 Key switch

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US10032576B2 (en) 2018-07-24
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CN105378881A (en) 2016-03-02
EP3047495A1 (en) 2016-07-27

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