EP0508298B1 - Slide switch - Google Patents

Slide switch Download PDF

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Publication number
EP0508298B1
EP0508298B1 EP92105633A EP92105633A EP0508298B1 EP 0508298 B1 EP0508298 B1 EP 0508298B1 EP 92105633 A EP92105633 A EP 92105633A EP 92105633 A EP92105633 A EP 92105633A EP 0508298 B1 EP0508298 B1 EP 0508298B1
Authority
EP
European Patent Office
Prior art keywords
slide
contact
basic body
switch according
slide switch
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.)
Expired - Lifetime
Application number
EP92105633A
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German (de)
French (fr)
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EP0508298A2 (en
EP0508298A3 (en
Inventor
Luc Jansseune
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.)
Siemens AG
Original Assignee
Siemens AG
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Filing date
Publication date
Priority claimed from DE19914111487 external-priority patent/DE4111487C2/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0508298A2 publication Critical patent/EP0508298A2/en
Publication of EP0508298A3 publication Critical patent/EP0508298A3/en
Application granted granted Critical
Publication of EP0508298B1 publication Critical patent/EP0508298B1/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/10—Operating parts
    • H01H15/102—Operating parts comprising cam devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/005—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch adapted for connection with printed circuit boards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H2001/5888—Terminals of surface mounted devices [SMD]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"

Definitions

  • the invention relates to a slide switch in which at least one pair of contact elements is anchored in a base body made of insulating material at a predetermined distance, these forming connection elements on the underside of the base body and a fixed contact and a resilient contact arm interacting with the base body and wherein a slide is mounted on the base body, which causes the contact between the two contact elements to close in a first switching position and the contact to open in a second switching position.
  • a slide switch that largely takes these requirements into account is already known from GB 2 087 652 A.
  • the slide has a switching cam facing the contact arm, with which the contact is closed when the slide moves in the longitudinal direction.
  • the contact elements are anchored in a base body by insertion, which has a U-shaped cross section, with the raised side walls in the upper area being excluded to form guide rails.
  • the slide is mounted between the side walls and can be moved in the longitudinal direction on the guide rails mentioned. If one did not want to insert the contact elements in this construction, but wanted to embed them, this would be difficult and expensive in the interior area between the side walls, since the contact elements would then have to be held in a complicated injection mold between the side walls to be formed with small gaps. The difficulty becomes clear when one considers that such slide switches have to be manufactured, for example, in the order of about 2 mm overall width.
  • the object of the invention is to design a slide switch of the type mentioned in such a way that it is easy to manufacture and handle even in the case of extreme miniaturization, in particular ensuring good detection of the switching state and is particularly well suited for use in surface mounting.
  • the inventive design of the slide switch enables simple manufacture on the one hand and particularly good handling on the other hand. Since the base body does not require any side walls drawn upwards, the contact elements can be exposed on the upper side of this base body without having to be sunk into a recess. They are therefore easy to fix even when embedding in an injection mold. For handling the slide switch in use, it is advantageous that the slide fully encompasses the base body so that it can fill the entire available external dimensions. As a result, there is still a certain size even with a strong miniaturization of the switch guaranteed of the slide so that it can still be operated by hand.
  • the slide with its upper middle part of the U-shaped cross section forms a cover plate which completely covers the base body in one switching position and releases part of the base body in the other switching position.
  • This design makes it easy to determine the switching status even without additional marking. Because in one switching position, for example in the idle state with the switch open, nothing can be seen in the plan view except the slide, while in the other switching position, for example with closed contact, in addition to the slide surface, a predetermined area of the base body and possibly also a contact element, becomes visible.
  • This switching position can be recognized particularly well if the surface area released in the switching position mentioned is colored differently from the slide. This can be produced in the simplest way by the fact that the slide and the base body are each formed from differently colored plastics.
  • connection elements are bent approximately parallel to the underside of the base body in the form of flat tongues.
  • each of the connection elements can also be divided into two flat tongues, these then being arranged in the region of opposite side edges of the switch. In this way, the slide switch has good stability during the soldering process.
  • the free end of the contact arm includes the free end of the fixed contact in a fork shape or vice versa.
  • the switch cam preferably has one Locking element by means of which it can be locked in the second switching position with the deflection of the contact arm.
  • the resilient contact arm is arranged above the fixed contact, so that it is pressed downward by the switching cam on the fixed contact.
  • the resilient contact arm lies below the fixed contact and is pressed upwards against the fixed contact by a correspondingly designed, laterally overlapping section of the slide for closing the contact.
  • the invention is not restricted to a single pair of contact elements.
  • a plurality of contact pairs is anchored in parallel to one another in the base body, the contact arms of which can be actuated via separate slides or also via a common slide. If the contact pairs are all aligned, the contacts are all closed or opened at the same time when a common slide is used.
  • a middle position of the slide could be provided, for example, in which both contact arms are largely relaxed.
  • the slide switch shown in the drawing has a base body 1 of largely flat shape.
  • contact elements 2 and 3 are embedded in opposite side areas, which penetrate the base body in an approximately vertical position.
  • connection elements 2a and 3a are each bent approximately parallel to the underside of the base body, so that the slide switch can be contacted with surface mounting on a printed circuit board.
  • the contact element 2 On the upper side of the base body 1, the contact element 2 forms a fixed contact 4, while the contact element 3 forms a resilient contact arm 5, which runs across the base body and can interact with the fixed contact 4 with its free contact end 5a.
  • the free contact end 5a is split or cut out in a fork shape, as can be seen in FIG. This results in a double contact between contact arm 5 and fixed contact 4.
  • a slide 6 is arranged on the base body and above the contact elements and has a basically U-shaped cross section, as shown in FIG. 2.
  • Guide arms 6b are formed on both sides of the central part 6a, which are each slidably guided with guide grooves 7 on guide ribs 8 of the base body.
  • the slide 6 can thus be displaced in the longitudinal direction of the contact arm 5.
  • the slide 6 with its guide arms 6b can be pushed onto the guide ribs 8 from above and latched into place.
  • the guide arms 6b could be pushed onto the guide ribs 8 in the longitudinal direction.
  • the middle part 6a of the slide is provided with a switching cam 10 directed downward against the contact arm 5.
  • the contact arm 5 has a bead or bend directed toward the slide 11.
  • Switch cams 10 and bend 11 are offset from one another in the idle state of the switch, so that the contact arm 5 rests on the slide in a largely relaxed position, that is to say the contact remains open.
  • the switch cam also reaches the dashed position 10' and then presses on the bend 11, as a result of which the contact arm 5 has the dashed position 5 ' occupies. In this position, the contact end 5a is pressed against the fixed contact 4, ie the contact is closed. A locking of the closed position is generated by a locking lug 12, which latches with the bend 11.
  • the slide 6 covers the entire base area of the slide switch, so that only the surface 6b is visible when viewed from above.
  • position 6 ' that is to say when the contact closes, part of the base body is visible on one side of the slide, namely the surface area 1a and possibly also part of the surface 4a of the fixed contact 4.
  • This fixed contact is, for example, tinned so that the surface 4a appears bright silvery.
  • surface 1a of the base body acts as a marking of the switching state.
  • the base body 1 consists, for example, of a plastic with a striking color, for example red, while the slide has a different color, for example blue.
  • an arrow 13 is incorporated in the surface 6c of the slide, which marks the switching direction.
  • connection elements 2a and 3a of the contact elements 2 and 3 are each split into two spaced flat tongues 21 and 22 or 31 and 32 (the latter not visible) according to FIGS. 4 and 5. This gives the slide switch a good stability even before soldering and during soldering on a circuit board.

Landscapes

  • Slide Switches (AREA)

Description

Die Erfindung betrifft einen Schiebeschalter, bei dem in einem Grundkörper aus Isolierstoff mindestens ein Paar von Kontaktelementen in einem vorgegebenen Abstand verankert ist, wobei diese an der Unterseite des Grundkörpers Anschlußelemente und an der Oberseite des Grundkörpers je einen Festkontakt und einen mit diesem zusammenwirkenden federnden Kontaktarm bilden und wobei an dem Grundkörper ein Schieber gelagert ist, welcher in einer ersten Schaltposition das Schließen des Kontaktes zwischen beiden Kontaktelementen und in einer zweiten Schaltposition das Öffnen des Kontaktes bewirkt.The invention relates to a slide switch in which at least one pair of contact elements is anchored in a base body made of insulating material at a predetermined distance, these forming connection elements on the underside of the base body and a fixed contact and a resilient contact arm interacting with the base body and wherein a slide is mounted on the base body, which causes the contact between the two contact elements to close in a first switching position and the contact to open in a second switching position.

Mit modernen Bestückungs- und Lötverfahren bei der Montage einzelner Bauelemente auf Leiterplatten werden auch derartige Schiebeschalter zunehmend hohen Temperaturen ausgesetzt. Dabei besteht die Gefahr, daß für den Grundkörper verwendete Isolierstoffe zwar an sich beständig sind gegen die auftretenden Temperaturen, jedoch bei Einwirkung zusätzlicher mechanischer Spannungen eine Fließbewegung erfahren, wodurch sich die Stellung der Kontaktelemente verändern kann. Zu diesem Zweck ist es wünschenswert, daß die Kontaktelemente in einer Ruheposition nicht mechanisch gegeneinander vorgespannt sind und daß der federnde Kontaktarm bei offenem Kontakt weitgehend entspannt ist, allenfalls mit geringer Vorspannung an dem Schieber anliegt. Das ist eine gute Voraussetzung dafür, daß auch bei höherer Temperaturbelastung des Grundkörpers nicht die Gefahr einer Deformation besteht.With modern assembly and soldering processes when assembling individual components on printed circuit boards, such slide switches are also increasingly exposed to high temperatures. There is a risk that the insulating materials used for the base body are inherently resistant to the temperatures occurring, but experience a flow movement when additional mechanical stresses are exerted, as a result of which the position of the contact elements can change. For this purpose, it is desirable that the contact elements are not mechanically biased against each other in a rest position and that the resilient contact arm is largely relaxed when the contact is open, at most with a slight bias against the slide. This is a good prerequisite for ensuring that there is no risk of deformation even when the base body is subjected to higher temperatures.

Ein Schiebeschalter, der diesen Anforderungen weitgehend Rechnung trägt, ist bereits aus der GB 2 087 652 A bekannt. Dort besitzt der Schieber einen dem Kontaktarm zugewandten Schaltnocken, mit dem bei einer Bewegung des Schiebers in Längsrichtung der Kontakt geschlossen wird. Bei dem dort beschriebenen Schiebeschalter sind die Kontaktelemente in einem Grundkörper durch Einstecken verankert, welcher einen U-förmigen Querschnitt aufweist, wobei die emporgezogenen Seitenwände im oberen Bereich zur Bildung von Führungsschienen ausgenommen sind. Der Schieber ist zwischen den Seitenwänden gelagert und an den erwähnten Führungsschienen in Längsrichtung verschiebbar. Wollte man bei dieser Konstruktion die Kontaktelemente nicht einstecken, sondern einbetten, so wäre dies in dem Innenbereich zwischen den Seitenwänden schwierig und aufwendig, da die Kontaktelemente dann in einer komplizierten Spritzgußform zwischen den mit geringen Zwischenräumen auszuformenden Seitenwänden gehalten werden müßten. Die Schwierigkeit wird dann deutlich, wenn man bedenkt, daß derartige Schiebeschalter beispielsweise in einer Größenordnung von etwa 2 mm Gesamtbreite hergestellt werden müssen.A slide switch that largely takes these requirements into account is already known from GB 2 087 652 A. There, the slide has a switching cam facing the contact arm, with which the contact is closed when the slide moves in the longitudinal direction. With the one described there Slide switches, the contact elements are anchored in a base body by insertion, which has a U-shaped cross section, with the raised side walls in the upper area being excluded to form guide rails. The slide is mounted between the side walls and can be moved in the longitudinal direction on the guide rails mentioned. If one did not want to insert the contact elements in this construction, but wanted to embed them, this would be difficult and expensive in the interior area between the side walls, since the contact elements would then have to be held in a complicated injection mold between the side walls to be formed with small gaps. The difficulty becomes clear when one considers that such slide switches have to be manufactured, for example, in the order of about 2 mm overall width.

Eine weitere Schwierigkeit bei den erwähnten geringen Abmessungen eines solchen Schiebeschalters liegt mit der bekannten Konstruktion darin, daß der zwischen den Seitenwänden geführte Schieber derart kleine Dimensionen erhält, daß er nicht mehr mit den Fingern handhabbar und betätigbar ist. Zum Schalten wäre demnach ein zusätzliches Werkzeug erforderlich. Außerdem ist die Stellung des Schiebers und damit die Erkennung des Schaltzustandes an dem kleinen Schieber zwischen den Seitenwänden nur mit Mühe möglich, wobei zusätzliche Markierungen erforderlich sind.Another difficulty with the small dimensions of such a slide switch mentioned with the known construction is that the slide guided between the side walls has such small dimensions that it can no longer be handled and actuated with the fingers. An additional tool would therefore be required for switching. In addition, the position of the slide and thus the detection of the switching state on the small slide between the side walls is possible only with difficulty, additional markings being required.

Aufgabe der Erfindung ist es, einen Schiebeschalter der eingangs genannten Art so auszugestalten, daß er auch bei extremer Miniaturisierung einfach herstellbar und handhabbar ist, insbesondere eine gute Erkennbarkeit des Schaltzustandes gewährleistet und für den Einsatz zur Oberflächenmontage besonders gut geeignet ist.The object of the invention is to design a slide switch of the type mentioned in such a way that it is easy to manufacture and handle even in the case of extreme miniaturization, in particular ensuring good detection of the switching state and is particularly well suited for use in surface mounting.

Erfindungsgemäß besitzt ein Schiebeschalter zur Erreichung dieses Zieles folgende Merkmale:

  • In einem Grundkörper aus Isolierstoff ist mindestens ein Paar von Kontaktelementen in einem vorgegebenen Abstand eingebettet, welche an der Unterseite des Grundkörpers Anschlußelemente und an der Oberseite des Grundkörpers je einen Festkontakt und einen mit diesem zusammenwirkenden federnden Kontaktarm bilden;
  • der Grundkörper besitzt an seinen beiden Längsseiten jeweils eine Führungsrippe als Gleitführung;
  • auf dem Grundkörper ist ein den Kontaktarm überdeckender Schieber mit U-förmigem Querschnitt angeordnet, der mittels beiderseits den Grundkörper umgreifender Führungsarme und an diesen Führungsarmen ausgebildeter Führungsnuten an den Führungsrippen des Grundkörpers in dessen Längsrichtung verschiebbar gelagert ist;
  • der Schieber besitzt einen dem Kontaktarm zugewandten Schaltnocken;
  • der Kontaktarm ist im entspannten Zustand von dem Festkontakt weggebogen und besitzt eine dem Schieber zugewandte Ausbiegung;
  • in einer ersten Schaltposition des Schiebers sind der Schaltnocken und die Ausbiegung außer Eingriff und der Kontaktarm befindet sich im wesentlichen entspannt von dem Festkontakt entfernt, während in einer zweiten Schaltposition der Schaltnocken mit der Ausbiegung in Eingriff ist und den Kontaktarm gegen den Festkontakt drückt.
According to the invention, a slide switch has the following features in order to achieve this goal:
  • There is at least one in an insulating body A pair of contact elements embedded at a predetermined distance, which form connection elements on the underside of the base body and a fixed contact and a resilient contact arm interacting with it on the top side of the base body;
  • the base body has a guide rib on each of its two longitudinal sides as a sliding guide;
  • on the base body there is arranged a slide with a U-shaped cross-section covering the contact arm, which is displaceably mounted on the guide ribs of the base body in the longitudinal direction thereof by means of guide arms encompassing the base body on both sides and guide grooves formed on these guide arms;
  • the slide has a switching cam facing the contact arm;
  • the contact arm is bent away from the fixed contact in the relaxed state and has a bend facing the slide;
  • in a first switching position of the slide, the switching cam and the deflection are disengaged and the contact arm is located essentially relaxed from the fixed contact, while in a second switching position the switching cam engages with the deflection and presses the contact arm against the fixed contact.

Durch die erfindungsgemäße Gestaltung des Schiebeschalters ist einerseits eine einfache Herstellung und andererseits auch eine besonders gute Handhabung ermöglicht. Da der Grundkörper keine nach oben gezogenen Seitenwände benötigt, können die Kontaktelemente an der Oberseite dieses Grundkörpers frei liegen, ohne daß sie in einer Vertiefung versenkt werden müßten. Sie sind somit auch beim Einbetten in einer Spritzgußform leicht zu fixieren. Für die Handhabung des Schiebeschalters im Einsatz ist von Vorteil, daß der Schieber den Grundkörper voll umgreift, so daß er die gesamten zur Verfügung stehenden Außenabmessungen ausfüllen kann. Dadurch ist auch bei einer starken Miniaturisierung des Schalters noch eine gewisse Größe des Schiebers gewährleistet, so daß er dann immer noch von Hand betätigt werden kann.The inventive design of the slide switch enables simple manufacture on the one hand and particularly good handling on the other hand. Since the base body does not require any side walls drawn upwards, the contact elements can be exposed on the upper side of this base body without having to be sunk into a recess. They are therefore easy to fix even when embedding in an injection mold. For handling the slide switch in use, it is advantageous that the slide fully encompasses the base body so that it can fill the entire available external dimensions. As a result, there is still a certain size even with a strong miniaturization of the switch guaranteed of the slide so that it can still be operated by hand.

In einer besonders vorteilhaften Ausgestaltung bildet der Schieber mit seinem oben liegenden Mittelteil des U-förmigen Querschnitts eine Abdeckplatte, welche in der einen Schaltposition den Grundkörper vollständig abdeckt und in der anderen Schaltposition einen Teil des Grundkörpers freigibt. Durch diese Gestaltung ist auch ohne zusätzliche Markierung leicht der Schaltzustand feststellbar. Denn in der einen Schaltposition, beispielsweise im Ruhezustand bei geöffnetem Schalter, ist in der Draufsicht außer dem Schieber nichts zu sehen, während in der anderen Schaltposition, also beispielsweise bei geschlossenem Kontakt, neben der Schieberoberfläche ein vorgegebener Bereich des Grundkörpers und gegebenenfalls auch eines Kontaktelementes, sichtbar wird. Besonders gut ist diese Schaltposition erkennbar, wenn der in der genannten Schaltposition freigegebene Oberflächenbereich eine vom Schieber abweichende Färbung aufweist. Dies kann auf einfachste Weise dadurch erzeugt werden, daß Schieber und Grundkörper jeweils aus unterschiedlich eingefärbten Kunststoffen geformt werden.In a particularly advantageous embodiment, the slide with its upper middle part of the U-shaped cross section forms a cover plate which completely covers the base body in one switching position and releases part of the base body in the other switching position. This design makes it easy to determine the switching status even without additional marking. Because in one switching position, for example in the idle state with the switch open, nothing can be seen in the plan view except the slide, while in the other switching position, for example with closed contact, in addition to the slide surface, a predetermined area of the base body and possibly also a contact element, becomes visible. This switching position can be recognized particularly well if the surface area released in the switching position mentioned is colored differently from the slide. This can be produced in the simplest way by the fact that the slide and the base body are each formed from differently colored plastics.

Besonders vorteilhaft läßt sich der erfindungsgemäße Schiebeschalter auf Leiterplatten mit Oberflächenmontage (SMT) einsetzen; in diesem Fall sind die Anschlußelemente annähernd parallel zur Unterseite des Grundkörpers in Form von Flachzungen gebogen. Jedes der Anschlußelemente kann in weiterer Ausgestaltung auch in zwei Flachzungen geteilt sein, wobei diese dann jeweils im Bereich gegenüberliegender Seitenkanten des Schalters angeordnet sind. Auf diese Weise erhält der Schiebeschalter eine gute Standfestigkeit während des Lötvorgangs.The slide switch according to the invention can be used particularly advantageously on printed circuit boards with surface mounting (SMT); in this case, the connection elements are bent approximately parallel to the underside of the base body in the form of flat tongues. In a further embodiment, each of the connection elements can also be divided into two flat tongues, these then being arranged in the region of opposite side edges of the switch. In this way, the slide switch has good stability during the soldering process.

Zur Verbesserung der Kontaktgabe ist in einer vorteilhaften Ausführungsform vorgesehen, daß das freie Ende des Kontaktarms gabelförmig das freie Ende des Festkontaktes umfaßt oder umgekehrt. Um bei geschlossenem Kontakt die Schaltstellung arretieren zu können, weist der Schaltnocken vorzugsweise ein Rastelement auf, mittels dessen er in der zweiten Schaltposition mit der Ausbiegung des Kontaktarms verrastbar ist.To improve the contact, it is provided in an advantageous embodiment that the free end of the contact arm includes the free end of the fixed contact in a fork shape or vice versa. In order to be able to lock the switch position when the contact is closed, the switch cam preferably has one Locking element by means of which it can be locked in the second switching position with the deflection of the contact arm.

In der bevorzugten Ausführungsform ist der federnde Kontaktarm oberhalb des Festkontaktes angeordnet, so daß er durch den Schaltnocken nach unten auf den Festkontakt gedrückt wird. Denkbar wäre jedoch auch eine Ausführungsform, bei der der federnde Kontaktarm unterhalb des Festkontaktes liegt und durch einen entsprechend gestalteten, seitlich übergreifenden Abschnitt des Schiebers zum Schließen des Kontaktes nach oben gegen den Festkontakt gedrückt wird.In the preferred embodiment, the resilient contact arm is arranged above the fixed contact, so that it is pressed downward by the switching cam on the fixed contact. However, an embodiment would also be conceivable in which the resilient contact arm lies below the fixed contact and is pressed upwards against the fixed contact by a correspondingly designed, laterally overlapping section of the slide for closing the contact.

Die Erfindung ist weiterhin nicht auf ein einziges Kontaktelementpaar beschränkt. So kann in einer Weiterbildung vorgesehen werden, daß in dem Grundkörper eine Mehrzahl von Kontaktpaaren parallel zueinander verankert ist, deren Kontaktarme über getrennte Schieber oder auch über einen gemeinsamen Schieber betätigbar sind. Wenn dabei die Kontaktpaare alle gleich ausgerichtet sind, werden die Kontakte bei Verwendung eines gemeinsamen Schiebers alle gleichzeitig geschlossen oder geöffnet. Es ist aber auch möglich, von zwei nebeneinander angeordneten Kontaktpaaren jeweils den Festkontakt und den Kontaktarm abwechselnd vertauscht anzuordnen, so daß bei Betätigung durch einen gemeinsamen Schieber in jeder Schaltposition jeweils ein Kontaktpaar geschlossen und das andere geöffnet ist. Um auch hierbei für das Einlöten eine möglichst hohe Temperaturbeständigkeit zu gewährleisten, könnte beispielsweise eine Mittelstellung des Schiebers vorgesehen werden, bei der beide Kontaktarme weitgehend entspannt sind.Furthermore, the invention is not restricted to a single pair of contact elements. In a further development it can be provided that a plurality of contact pairs is anchored in parallel to one another in the base body, the contact arms of which can be actuated via separate slides or also via a common slide. If the contact pairs are all aligned, the contacts are all closed or opened at the same time when a common slide is used. However, it is also possible to alternately arrange the fixed contact and the contact arm alternately in each case from two contact pairs arranged next to one another, so that when actuated by a common slide in each switching position, one contact pair is closed and the other is open. In order to ensure the highest possible temperature resistance for the soldering, a middle position of the slide could be provided, for example, in which both contact arms are largely relaxed.

Die Erfindung wird nachfolgend an einem Ausführungsbeispiel anhand der Zeichnung näher erläutert. Es zeigt

  • Figur 1 einen erfindungsgemäß gestalteten Schiebeschalter in Seitenansicht, teilweise aufgeschnitten,
  • Figur 2 eine Frontansicht auf den Schieber,
  • Figur 3 eine Schnittdarstellung III-III aus Figur 1 durch den Grundkörper mit Kontaktelementen, jedoch ohne den Schieber,
  • Figur 4 und Figur 5 je eine perspektivische Darstellung des Schiebeschalters, einmal im montierten Zustand und einmal mit abgehobenem Schieber.
The invention is explained in more detail using an exemplary embodiment with reference to the drawing. It shows
  • FIG. 1 shows a slide switch designed according to the invention in a side view, partially cut away,
  • FIG. 2 shows a front view of the slide,
  • FIG. 3 shows a sectional illustration III-III from FIG. 1 through the base body with contact elements, but without the slide,
  • 4 and 5 each show a perspective view of the slide switch, once in the assembled state and once with the slide lifted off.

Der in der Zeichnung dargestellte Schiebeschalter besitzt einen Grundkörper 1 von weitgehend flacher Gestalt. In diesem Grundkörper sind in gegenüberliegenden Seitenbereichen Kontaktelemente 2 und 3 eingebettet, welche den Grundkörper in etwa senkrechter Lage durchsetzen. An der Unterseite des Grundkörpers 1 bilden die Kontaktelemente jeweils Anschlußelemente 2a bzw. 3a, welche jeweils etwa parallel zur Unterseite des Grundkörpers gebogen sind, so daß der Schiebeschalter mit Oberflächenmontage auf einer Leiterplatte kontaktiert werden kann.The slide switch shown in the drawing has a base body 1 of largely flat shape. In this base body, contact elements 2 and 3 are embedded in opposite side areas, which penetrate the base body in an approximately vertical position. On the underside of the base body 1, the contact elements each form connection elements 2a and 3a, which are each bent approximately parallel to the underside of the base body, so that the slide switch can be contacted with surface mounting on a printed circuit board.

An der Oberseite des Grundkörpers 1 bildet das Kontaktelement 2 einen Festkontakt 4, während das Kontaktelement 3 einen federnden Kontaktarm 5 bildet, der quer über den Grundkörper verläuft und mit seinem freien Kontaktende 5a mit dem Festkontakt 4 zusammenzuwirken vermag. Das freie Kontaktende 5a ist gabelförmig gespalten oder ausgeschnitten, wie in Figur 3 zu sehen ist. Damit ergibt sich eine Doppelkontaktierung zwischen Kontaktarm 5 und Festkontakt 4.On the upper side of the base body 1, the contact element 2 forms a fixed contact 4, while the contact element 3 forms a resilient contact arm 5, which runs across the base body and can interact with the fixed contact 4 with its free contact end 5a. The free contact end 5a is split or cut out in a fork shape, as can be seen in FIG. This results in a double contact between contact arm 5 and fixed contact 4.

Auf dem Grundkörper und über den Kontaktelementen ist ein Schieber 6 angeordnet, der einen grundsätzlich U-förmigen Querschnitt besitzt, wie in Figur 2 gezeigt. An dem Mittelteil 6a sind dabei beiderseits den Grundkörper umgreifende Führungsarme 6b angeformt, welche jeweils mit Führungsnuten 7 an Führungsrippen 8 des Grundkörpers gleitend geführt sind. Damit ist der Schieber 6 in Längsrichtung des Kontaktarms 5 verschiebbar. Mit den hakenförmigen Enden 9 ist der Schieber 6 mit seinen Führungsarmen 6b von oben auf die Führungsrippen 8 aufschiebbar und einrastbar. Denkbar wäre jedoch auch eine Abwandlung, bei der die Führungsarme 6b in Längsrichtung der Führungsrippen 8 auf diese aufschiebbar wären.A slide 6 is arranged on the base body and above the contact elements and has a basically U-shaped cross section, as shown in FIG. 2. Guide arms 6b are formed on both sides of the central part 6a, which are each slidably guided with guide grooves 7 on guide ribs 8 of the base body. The slide 6 can thus be displaced in the longitudinal direction of the contact arm 5. With the hook-shaped ends 9, the slide 6 with its guide arms 6b can be pushed onto the guide ribs 8 from above and latched into place. However, one would also be conceivable Modification in which the guide arms 6b could be pushed onto the guide ribs 8 in the longitudinal direction.

Zur Betätigung ist der Mittelteil 6a des Schiebers mit einem nach unten gegen den Kontaktarm 5 gerichteten Schaltnocken 10 versehen. Außerdem besitzt der Kontaktarm 5 eine zum Schieber hin gerichtete Sicke oder Ausbiegung 11. Schaltnocken 10 und Ausbiegung 11 sind im Ruhezustand des Schalters gegeneinander versetzt, so daß der Kontaktarm 5 in weitgehend entspannter Stellung am Schieber anliegt, der Kontakt also geöffnet bleibt. Wird jedoch der Schieber 6 in Figur 1 nach links verschoben, so daß er die gestrichelte Position 6′ einnimmt, so gelangt auch der Schaltnocken in die gestrichelte Position 10′ und drückt dann auf die Ausbiegung 11, wodurch der Kontaktarm 5 die gestrichelte Position 5′ einnimmt. In dieser Position wird das Kontaktende 5a gegen den Festkontakt 4 gedrückt, der Kontakt also geschlossen. Eine Arretierung der Schließposition wird dabei durch eine Rastnase 12 erzeugt, welche mit der Ausbiegung 11 verrastet.For actuation, the middle part 6a of the slide is provided with a switching cam 10 directed downward against the contact arm 5. In addition, the contact arm 5 has a bead or bend directed toward the slide 11. Switch cams 10 and bend 11 are offset from one another in the idle state of the switch, so that the contact arm 5 rests on the slide in a largely relaxed position, that is to say the contact remains open. However, if the slide 6 is moved to the left in FIG. 1 so that it assumes the dashed position 6 ', the switch cam also reaches the dashed position 10' and then presses on the bend 11, as a result of which the contact arm 5 has the dashed position 5 ' occupies. In this position, the contact end 5a is pressed against the fixed contact 4, ie the contact is closed. A locking of the closed position is generated by a locking lug 12, which latches with the bend 11.

Im Ruhezustand, wie er beispielsweise aus Figur 1 oder Figur 4 ersichtlich ist, deckt der Schieber 6 die gesamte Grundfläche des Schiebeschalters ab, so daß bei einer Sicht von oben lediglich die Oberfläche 6b sichtbar ist. Bei Verschiebung des Schiebers in die Position 6′, also beim Schließen des Kontakts, wird an einer Seite des Schiebers ein Teil des Grundkörpers sichtbar, und zwar der Oberflächenbereich 1a und gegebenenfalls auch ein Teil der Oberfläche 4a des Festkontaktes 4. Dieser Festkontakt ist beispielsweise verzinnt, so daß die Oberfläche 4a leuchtend silbrig erscheint. Besonders aber wirkt die Oberfläche 1a des Grundkörpers als Markierung des Schaltzustandes. Zur Erhöhung dieser Wirkung besteht beispielsweise der Grundkörper 1 aus einem Kunststoff mit auffallender Färbung, etwa rot, während der Schieber eine andere Farbe, beispielsweise blau, besitzt. Damit ist mühelos und ohne zusätzliche Markierung der jeweilige Einschaltzustand des Schiebeschalters erkennbar. Wie aus den Figuren 4 und 5 weiter ersichtlich ist, ist in der Oberfläche 6c des Schiebers ein Pfeil 13 eingearbeitet, der die Schaltrichtung markiert.In the idle state, as can be seen, for example, from FIG. 1 or FIG. 4, the slide 6 covers the entire base area of the slide switch, so that only the surface 6b is visible when viewed from above. When the slide is moved to position 6 ', that is to say when the contact closes, part of the base body is visible on one side of the slide, namely the surface area 1a and possibly also part of the surface 4a of the fixed contact 4. This fixed contact is, for example, tinned so that the surface 4a appears bright silvery. In particular, however, surface 1a of the base body acts as a marking of the switching state. To increase this effect, the base body 1 consists, for example, of a plastic with a striking color, for example red, while the slide has a different color, for example blue. The respective switch-on status of the slide switch can thus be recognized easily and without additional marking. As from Figures 4 and 5 further can be seen, an arrow 13 is incorporated in the surface 6c of the slide, which marks the switching direction.

Die Anschlußelemente 2a und 3a der Kontaktelemente 2 und 3 sind gemäß Figur 4 und 5 jeweils in zwei auseinanderliegende Flachzungen 21 und 22 bzw. 31 und 32 (letztere nicht sichtbar) aufgespalten. Damit erhält der Schiebeschalter bereits vor dem Festlöten und während des Lötens auf einer Leiterplatte eine gute Standfestigkeit.The connection elements 2a and 3a of the contact elements 2 and 3 are each split into two spaced flat tongues 21 and 22 or 31 and 32 (the latter not visible) according to FIGS. 4 and 5. This gives the slide switch a good stability even before soldering and during soldering on a circuit board.

Claims (10)

  1. Slide switch having the following features:
    - in a basic body (1) of insulating material at least one pair of contact elements (2, 3) is embedded at a predetermined distance, which contact elements form on the lower side of the basic body connection elements (2a, 3a) and on the upper side of the basic body one stationary contact (4) each and, interacting therewith, a resilient contact arm (5);
    - the basic body (1) has on its two longitudinal sides in each case one guide rib (8) as sliding guide;
    - on the basic body (1) a slide (6) of U-shaped cross-section, which overlaps the contact arm (5), is arranged which is mounted, by means of guide arms (6b) which engage around the basic body on the two sides and by means of guide grooves (7) formed on these guide arms, so as to be displaceable on the guide ribs (8) of the basic body in its longitudinal direction;
    - the slide (6) has a switching cam (10) facing the contact arm (5);
    - in the unstressed state the contact arm is bent away from the stationary contact (4) and has a bend (11) facing the slide (6);
    - in a first switching position of the slide (6) the switching cam (10) and the bend (11) are not in engagement and the contact arm (5), essentially unstressed, is remote from the stationary contact (4), while in a second switching position the switching cam (10) is in engagement with the bend (11) and presses the contact arm (5) against the stationary contact (4).
  2. Slide switch according to Claim 1, characterized in that the slide (6) forms with a central part (6a) a cover plate which completely covers the basic body (1) in the one switching position and clears a part (1a) of the basic body in the other switching position.
  3. Slide switch according to Claim 2, characterized in that at least that surface area (1a) of the basic body (1), cleared by the slide (6) in a specific switching position, has a colour which differs from the slide (6).
  4. Slide switch according to Claim 3, characterized in that the basic body (1) and the slide (6) are in each case formed from differently coloured plastics.
  5. Slide switch according to one of Claims 1 to 4, the free contact end (5a) of the contact arm (5) or of the stationary contact (4) gripping around the free end of the respectively other element in a fork-shaped manner.
  6. Slide switch according to one of Claims 1 to 5, the switching cam (10) having a locking element (12), by means of which it can be locked in the second switching position by means of the bend (11) of the contact arm (5).
  7. Slide switch according to one of Claims 1 to 6, the connection elements (2a, 3a) being bent for surface mounting in a direction which is approximately parallel to the lower side of the basic body (1).
  8. Slide switch according to Claim 7, characterized in that each of the connection elements (2a, 3a) is divided into two flat tongues (21, 22; 31, 32), each of which is arranged in the area of a side edge of the switch.
  9. Slide switch according to one of Claims 1 to 8, a plurality of contact pairs (2, 3) being anchored in the basic body (1) parallel to one another, whose contact arms (5) can be actuated by means of separate slides or by means of a common slide.
  10. Slide switch according to Claim 9, of two contact pairs, which are arranged side by side, in each case the stationary contact and the contact arm being arranged in an alternately exchanged manner in such a way that, during actuation by means of a common slide, in each switching position in each case one contact pair is closed and the other one is open.
EP92105633A 1991-04-09 1992-04-01 Slide switch Expired - Lifetime EP0508298B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4111487 1991-04-09
DE19914111487 DE4111487C2 (en) 1991-04-09 1991-04-09 Slide switch
DE9202282U 1992-02-21
DE9202282U DE9202282U1 (en) 1991-04-09 1992-02-21 Slide switch

Publications (3)

Publication Number Publication Date
EP0508298A2 EP0508298A2 (en) 1992-10-14
EP0508298A3 EP0508298A3 (en) 1993-04-28
EP0508298B1 true EP0508298B1 (en) 1995-02-15

Family

ID=25902667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105633A Expired - Lifetime EP0508298B1 (en) 1991-04-09 1992-04-01 Slide switch

Country Status (2)

Country Link
EP (1) EP0508298B1 (en)
DE (2) DE9202282U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4407197A1 (en) * 1994-03-04 1995-09-07 Hoechst Schering Agrevo Gmbh Process for the preparation of / L / -Homoalanin-4-yl- (methyl) phosphinic acid and its salts by resolution
DE19602036B4 (en) * 1996-01-20 2004-02-05 Valeo Schalter Und Sensoren Gmbh Switch with movable contact pieces formed by spring tongues
EP1521281A1 (en) * 2003-08-13 2005-04-06 HARTMANN CODIER GmbH Slide switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849610A (en) * 1973-07-19 1974-11-19 Amp Inc Slide switch with individual slide operators
DE7344516U (en) * 1973-12-15 1974-03-28 Preh Elektrofeinmechanische Werke Slide switch
US3983341A (en) * 1975-06-03 1976-09-28 Amf Incorporated Simplified slide switch
US4366351A (en) * 1980-11-07 1982-12-28 Re-Al, Inc. Electrical slide switch of flush through design and method of mounting thereof

Also Published As

Publication number Publication date
DE59201375D1 (en) 1995-03-23
EP0508298A2 (en) 1992-10-14
EP0508298A3 (en) 1993-04-28
DE9202282U1 (en) 1992-04-30

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