EP0106075A2 - Switch with bridging contalts - Google Patents

Switch with bridging contalts Download PDF

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Publication number
EP0106075A2
EP0106075A2 EP83108318A EP83108318A EP0106075A2 EP 0106075 A2 EP0106075 A2 EP 0106075A2 EP 83108318 A EP83108318 A EP 83108318A EP 83108318 A EP83108318 A EP 83108318A EP 0106075 A2 EP0106075 A2 EP 0106075A2
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EP
European Patent Office
Prior art keywords
contact
fixed contacts
switching element
bridges
contacts
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.)
Granted
Application number
EP83108318A
Other languages
German (de)
French (fr)
Other versions
EP0106075B1 (en
EP0106075A3 (en
Inventor
Jürgen Willems
Detlev Beyer
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.)
ELAN-SCHALTELEMENTE GMBH
Original Assignee
Elan-Schaltelemente GmbH
Elan Schaltelemente GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elan-Schaltelemente GmbH, Elan Schaltelemente GmbH and Co KG filed Critical Elan-Schaltelemente GmbH
Publication of EP0106075A2 publication Critical patent/EP0106075A2/en
Publication of EP0106075A3 publication Critical patent/EP0106075A3/en
Application granted granted Critical
Publication of EP0106075B1 publication Critical patent/EP0106075B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H01H1/10—Laminated contacts with divided contact surface
    • 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
    • H01H1/2083—Bridging contact surfaces directed at an oblique angle with respect to the movement of the bridge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
    • H01H2011/046—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion by plating

Definitions

  • the invention relates to a switching element according to the preamble of patent claim 1.
  • the invention has for its object to provide a novel switching element which ensures good contact with a long service life of the switching element at low and medium loads.
  • Fig. 1 shows in a sectional view only one half of a switching element in a first switching position. A mirror image addition to the parts shown in FIG. 1 would result in a complete section through a switching element.
  • the switching element 10 comprises a housing 11 in which fixed contacts 12, 12 'are arranged in a stationary manner.
  • the switching element 10 further comprises a contact bridge support 13 slidably mounted in the housing 11, the contact bridges 14, 14 of which, depending on the position of the contact bridge support 13, galvanically connect two fixed contacts 12 or 12 'or interrupt a conductive connection between the fixed contacts 12 or 12'.
  • two fixed contacts 12 and 12 'are provided in pairs opposite one another in the housing 11.
  • one contact system is designed as a break contact or a make contact. It goes without saying that the invention can also be used for switching elements which either contain only break contacts or only make contacts or any combination of these functions in large numbers.
  • the cooperating end pieces of the fixed contacts 12, 12 'and the contact bridges 14, 14' are arranged obliquely with respect to the axis of movement of the contact bridge carrier 13.
  • the end pieces of the fixed contacts 12, 12 'and the end pieces of the contact bridges 14, 14' preferably lie in mutually parallel planes, although it should be noted that the contact bridges 14, 14 'are expediently resilient and in particular in the course of contacting them can first swivel the predetermined level reversibly.
  • the tilt of the cooperating end pieces of the fixed contacts 12, 12 'and the contact bridges 14, 14' leads to a particularly reliable contact even with only a low current load on the contacts, since the contact bridges 14, 14 'on the inclined contact surfaces 120 (FIG. 3) slide along the fixed contacts 12, 12 'and thereby pierce any existing oxide skins.
  • the fixed contacts 12 'and the contact bridge 14' have the function of an opener, while the fixed contacts 12 and the contact bridge 14 have the function of a closer.
  • the end piece of the contact bridge carrier 14 first touches the opposite contact surface of the respective fixed contact 12 and then slides along the inclined contact surface, as a result of which the previously described effect of penetration of the oxide skin occurs.
  • the resilient contact bridge 14 expediently yields somewhat.
  • the inclined position of the contact surfaces also results in particularly reliable contacting, actuation of the contact bridge support 13 in addition to the force component present in the actuation direction and also a force component in the lateral direction being effective.
  • the switching element is designed such that it can be easily attached in a plurality next to one another.
  • spring elements 110 are provided which, after the switching element has been plugged in, engage in fastening means (not shown).
  • FIG. 2 shows the second switching state of the switching element, mirror-symmetrical to FIG. 1, which is achieved by actuating the contact bridge carrier 13 in the direction of the arrow 200.
  • this switching state the galvanic connection between the fixed contacts 12 is interrupted, while the contact bridge 14'- establishes a conductive connection via the fixed contacts 12 '.
  • the contact surface 120 of the fixed contacts 12, 12 ' is made of a highly conductive material, e.g. B. fine silver, which is connected by plating to the fixed contact 12, 12 '. This is shown schematically in FIG. 3.
  • the contact surfaces 120 are expediently provided with an embossment 120 ′.
  • This embossing 120 ' is shown schematically in FIG. 4, which shows a view from the viewing direction X of the contact surface 120 of FIG. 3.
  • the prefix 120 ' preferably has a cutting-like profile with a triangular cross-section. This is illustrated schematically by FIG. 5, which is a sectional view along line 5 - 5 of FIG. 4.
  • the roughness depth of the embossment 120 ′ can be in the range from approximately 0.01 to 1 mm, but values in the range from approximately 0.05 to 0.2 mm are preferably selected.
  • the switching element is excellently suited for switching applications in the area of low current loads in the order of a few milliamperes and below that to medium loads in the order of a few 10 amperes.
  • the described shape and arrangement of the contact elements enable the problems caused by oxide formation to be mastered, in particular when the current load is low.
  • a long service life and reliability, especially with a higher current load, is mainly achieved by making it possible to choose the contact areas of the contact elements corresponding to the current load without impairing the function at low loads.
  • the contact surfaces can also be coated with precious metals, in particular gold.

Abstract

1. A switch with fixed contacts (12, 12') mounted in a set position in a housing (11) and with contact bridge carriers (13) which are slidably mounted in the housing (11) and of which the contact bridges (14, 14'), according to the position of the contact bridge carrier (13), each electrically interconnect two fixed contacts (12, 12') or interrupt a conductive connection between the fixed contacts (12, 12'), or interrupt a conductive connection between the fixed contacts (12, 12'), the contact bridges (14, 14') being resilient and the interacting end pieces of the fixed contacts (12, 12') and contact bridges (14, 14') being positioned obliquely in relation to the axis of motion of the contact bridge carrier (13), the end pieces of the contact bridges (14, 14') having rounded contacts and the contact surfaces (120) of the fixed contacts (12, 12') having an embossment (120') with a blade-shaped profile, the fixed contacts (12, 12') being so constructed that the end pieces of the contact bridges (14, 14') slide along the obliquely positioned contact surfaces (120) of the fixed contacts (12, 12') when the contact is made, the blade-shaped profiles of the embossment (120') being aligned with the direction of the sliding movement between the contacts of the end pieces of the contact bridges (14, 14') and the contact surfaces (120) of the fixed contacts (12, 12').

Description

Die Erfindung betrifft ein Schaltelement nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a switching element according to the preamble of patent claim 1.

Es sind zahlreiche Konstruktionen von Schaltelementen bekannt, die je nach zu erwartender Strombelastung unterschiedlich ausgeführt sind.Numerous designs of switching elements are known which are designed differently depending on the expected current load.

Bei niedriger Strombelastung in der Größenordnung weniger Milliampere oder darunter ist bei mechanischen Kontakten die Kontaktoxydation das größte Problem. Bekannte Schaltelemente werden häufig als Messerkontakc ausgebildet, die mit Hilfe eines möglichst hohen spezifischen Drucks vorhandene Oxydschichten durchdringen, um einen guten Kontakt zu gewährleisten.At low current loads, on the order of a few milliamperes or less, contact oxidation is the biggest problem with mechanical contacts. Known switching elements are often designed as knife contacts which penetrate existing oxide layers with the aid of the highest possible specific pressure in order to ensure good contact.

Bei mittleren Strombelastungen in der Größenordnung von etwa 10 bis 20 Ampere spielen durch Oxydschichten hervorgerufene Kontaktprobleme auch noch eine Rolle; weitere Anforderungen, die sich aus Abbrand und thermischer Belastung ergeben, erfordern jedoch größere Kontaktflächen und verhindern in der Regel die Ausbildung als Messerkontakt.At average current loads of the order of about 10 to 20 amperes, contact problems caused by oxide layers also play a role; however, further requirements resulting from burn-up and thermal stress require larger contact areas and generally prevent training as a knife contact.

Der Erfindung liegt die Aufgabe zugrunde, ein neuartiges Schaltelement anzugeben, welches bei niedriger und mittierer Belastung eine gute Kontaktgabe mit hoher Lebensdauer des Schaltelements gewährleistet.The invention has for its object to provide a novel switching element which ensures good contact with a long service life of the switching element at low and medium loads.

Diese Aufgabe wird durch die im Patentanspruch 1 angegebene Erfindung gelöst.This object is achieved by the invention specified in claim 1.

Vorteilhafte Ausgestaltungen der Erfindung gehen aus den Unteransprüchen hervor.Advantageous embodiments of the invention emerge from the subclaims.

Die Erfindung wird nachfolgend unter Bezug auf die Zeichnung näher erläutert. Dabei zeigt:

  • Fig. 1: eine Schnittdarstellung einer Hälfte des Schaltelements mit Darstellung eines ersten Schaltzustands;
  • Fig. 2: eine Schnittdarstellung einer Hälfte des Schaltelements mit Darstellung eines zweiten Schaltzustands;
  • Fig. 3: die Seitenansicht eines Festkontakts mit einer aufplattierten Kontaktfläche;
  • Fig. 4: eine Ansicht auf die Kontaktfläche aus Richtung X der Fig. 3;
  • Fig. 5: eine Schnittdarstellung gemäß Linie 5 - 5 der Fig. 4.
The invention is explained in more detail below with reference to the drawing. It shows:
  • 1 shows a sectional view of one half of the switching element with a first switching state;
  • 2 shows a sectional illustration of one half of the switching element with a second switching state;
  • 3: the side view of a fixed contact with a plated contact surface;
  • 4: a view of the contact surface from the direction X of FIG. 3;
  • 5: a sectional view along line 5 - 5 of FIG. 4.

Fig. 1 zeigt in einer Schnittdarstellung lediglich eine Hälfte eines Schaltelements in einer ersten Schaltposition. Eine spiegelbildliche Ergänzung der in Fig. 1 dargestellten Teile würde einen vollständigen Schnitt durch ein Schaltelement ergeben. Das Schaltelement 10 umfaßt ein Gehäuse 11 in dem Festkontakte 12, 12' ortsfest angeordnet sind. Das Schaltelement 10 umfaßt weiter einen im Gehäuse 11 gleitbar gelagerten Kontaktbrückenträger 13, dessen Kontaktbrücken 14, 14 je nach Stellung des Kontaktbrückenträgers 13 je zwei Festkontakte 12 bzw. 12' galvanisch verbinden bzw. eine leitende Verbindung zwischen den Festkontakten 12 bzw. 12' unterbrechen. Im Gehäuse 11 sind dazu je zwei Festkontakte 12 bzw. 12' paarweise einander gegenüberliegend vorgesehen.Fig. 1 shows in a sectional view only one half of a switching element in a first switching position. A mirror image addition to the parts shown in FIG. 1 would result in a complete section through a switching element. The switching element 10 comprises a housing 11 in which fixed contacts 12, 12 'are arranged in a stationary manner. The switching element 10 further comprises a contact bridge support 13 slidably mounted in the housing 11, the contact bridges 14, 14 of which, depending on the position of the contact bridge support 13, galvanically connect two fixed contacts 12 or 12 'or interrupt a conductive connection between the fixed contacts 12 or 12'. For this purpose, two fixed contacts 12 and 12 'are provided in pairs opposite one another in the housing 11.

In dem dargestellten Ausführungsbeispiel ist je ein Kontaktsystem als Öffner bzw. Schließer ausgeführt. Es versteht sich von selbst, daß die Erfindung auch bei Schaltelementen anwendbar ist, die entweder nur Öffner oder nur Schließer oder eine beliebige-Kombination dieser Funktionen in größerer Anzahl enthalten.In the illustrated embodiment, one contact system is designed as a break contact or a make contact. It goes without saying that the invention can also be used for switching elements which either contain only break contacts or only make contacts or any combination of these functions in large numbers.

Um eine besonders gute Kontaktgabe zu erreichen, sind die jeweils zusammenwirkenden Endstücke der Festkontakte 12, 12' und der Kontaktbrücken 14, 14' in bezug auf die Bewegungsachse des Kontaktbrückenträgers 13 schräg verlaufend angeordnet. Die Endstücke der Festkontakte 12, 12' und die Endstücke der Kontaktbrücken 14, 14' liegen dabei bevorzugt in parallel zueinander verlaufenden Ebenen, wobei allerdings anzumerken ist, daß die Kontaktbrücken 14, 14' zweckmäßig federnd ausgebildet sind und insbesondere im Zuge der Kontaktgabe aus dieser zunächst vorgegebenen Ebene reversibel ausschwenken können. Die Schrägstellung der zusammenwirkenden Endstücke der Festkontakte 12, 12' und der Kontaktbrücken 14, 14' führt zu einer besonders, sicheren Kontaktgabe auch bei nur geringer Strombelastung der Kontakte, da bei Kontaktherstellung die Kontaktbrücken 14, 14' auf den schräg, gestellten Kontaktflächen 120 (Fig. 3) der Festkontakte 12, 12' entlanggleiten und dabei ggf. vorhandene Oxydhäute durchstoßen. In dem in Fig. 1 und Fig. 2 erläuterten Ausführungsbeispiel haben die Festkontakte 12' und die Kontaktbrücke 14' die Funktion eines Öffners, während die Festkontakte 12 und die Kontaktbrücke 14 die Funktion eines Schließers haben. Bei Fortbewegung des Kontaktbrückenträgers 13 in Richtung des Pfeil-s 100 in eine erste Schaltposition wird über die Kontaktbrücke 14 eine galvanische Verbindung zwischen den einander gegenüberliegender Festkontaktpaaren 12 hergestellt. Während der Fortbewegung des Kontaktbrückenträgers 13 in seine Endstellung in Richtung des Pfeils 100 berührt zunächst das Endstück des Kontaktbrückenträgers 14 die gegenüberliegende Kontaktfläche des jeweiligen Festkontakts 12 und gleitet dann an der schräggestellten Kontaktfläche entlang, wodurch sich der zuvor schon beschriebene Effekt des Durchdringens der Oxydhaut einstellt. Bei diesem Vorgang gibt zweckmäßigerweise die federnd ausgebildete Kontaktbrücke 14 etwas nach. Die Schrägstellung der Kontaktflächen bewirkt neben der Zerstörung der Oxydhaut auch eine besonders sichere Kontaktgabe, dabei Betätigung des Kontaktbrückenträgers 13 neben der in Betätigungsrichtung vorhandenen Kraftkomponente auch eine Kraftkomponente in seitlicher Richtung wirksam wird.In order to achieve a particularly good contact, the cooperating end pieces of the fixed contacts 12, 12 'and the contact bridges 14, 14' are arranged obliquely with respect to the axis of movement of the contact bridge carrier 13. The end pieces of the fixed contacts 12, 12 'and the end pieces of the contact bridges 14, 14' preferably lie in mutually parallel planes, although it should be noted that the contact bridges 14, 14 'are expediently resilient and in particular in the course of contacting them can first swivel the predetermined level reversibly. The tilt of the cooperating end pieces of the fixed contacts 12, 12 'and the contact bridges 14, 14' leads to a particularly reliable contact even with only a low current load on the contacts, since the contact bridges 14, 14 'on the inclined contact surfaces 120 (FIG. 3) slide along the fixed contacts 12, 12 'and thereby pierce any existing oxide skins. In the exemplary embodiment explained in FIGS. 1 and 2, the fixed contacts 12 'and the contact bridge 14' have the function of an opener, while the fixed contacts 12 and the contact bridge 14 have the function of a closer. When the contact bridge carrier 13 moves in the direction of the arrow 100 into a first switching position, a galvanic connection between the mutually opposite fixed contact pairs 12 is established via the contact bridge 14. During the movement of the contact bridge carrier 13 into its end position in the direction of arrow 100, the end piece of the contact bridge carrier 14 first touches the opposite contact surface of the respective fixed contact 12 and then slides along the inclined contact surface, as a result of which the previously described effect of penetration of the oxide skin occurs. In this process, the resilient contact bridge 14 expediently yields somewhat. In addition to the destruction of the oxide skin, the inclined position of the contact surfaces also results in particularly reliable contacting, actuation of the contact bridge support 13 in addition to the force component present in the actuation direction and also a force component in the lateral direction being effective.

Die Festkontakte 12, 12' werden zweckmäßig mit Schrauben 15 im Gehäuse 11 befestigt, wobei diese Schrauben 15 gleichzeitig zum Anschluß der Zuleitungen dienen.The fixed contacts 12, 12 'are expediently fastened with screws 15 in the housing 11, these screws 15 also serving to connect the supply lines.

In vorteilhafter Weise wird das Schaltelement derart aufreihbar ausgebildet, daß es auf leichte Weise in einer Mehrzahl nebeneinander befestigbar ist. Um diese Befestigung zu vereinfachen, sind Federelemente 110 vorgesehen, die nach Aufstecken des Schaltelements in nicht dargestellte Befestigungsmittel einrasten.Advantageously, the switching element is designed such that it can be easily attached in a plurality next to one another. In order to simplify this fastening, spring elements 110 are provided which, after the switching element has been plugged in, engage in fastening means (not shown).

Fig. 2 zeigt spiegelsymmetrisch zu Fig. 1 den zweiten Schaltzustand des Schaltelements, der durch Betätigung des Kontaktbrückenträgers 13 in Richtung des Pfeils 200 erreicht wird. In diesem Schaltzustand ist die galvanische Verbindung zwischen den Festkontakten 12 unterbrochen, während die Kontaktbrücke 14'- eine leitende Verbindung über die Festkontakte 12' herstellt.FIG. 2 shows the second switching state of the switching element, mirror-symmetrical to FIG. 1, which is achieved by actuating the contact bridge carrier 13 in the direction of the arrow 200. In this switching state, the galvanic connection between the fixed contacts 12 is interrupted, while the contact bridge 14'- establishes a conductive connection via the fixed contacts 12 '.

Um eine gute elektrische und thermische.Leitfähigkeit zu erreichen, wird zumindest die Kontaktfläche 120 der Festkontakte 12, 12' aus einem gut leitenden Material, z. B. Feinsilber hergestellt, das durch Plattierung mit dem Festkontakt 12, 12' verbunden ist. Dies ist schematisch in Fig. 3 dargestellt.In order to achieve good electrical and thermal conductivity, at least the contact surface 120 of the fixed contacts 12, 12 'is made of a highly conductive material, e.g. B. fine silver, which is connected by plating to the fixed contact 12, 12 '. This is shown schematically in FIG. 3.

Um die Durchbrechung ggf. vorhandener Oxydhäute zu erleichtern, werden die Kontaktflächen 120 zweckmäßig mit einer Prägung 120' versehen. Diese Prägung 120' ist schematisch in Fig. 4 dargestellt, die eine Aufsicht aus Blickrichtung X auf die Kontaktfläche 120 der Fig. 3 wiedergibt. Die Präfung 120' hat vorzugsweise ein schneidenförmiges Profil mit dreieckförmigem Querschnitt. Dies wird schematisch durch Fig. 5 erläutert, die eine Schnittdarstellung entlang der Linie 5 - 5 von Fig. 4 ist. Die Rauhtiefe der Prägung 120' kann im Bereich von etwa 0,01 bis 1 mm liegen, vorzugsweise werden jedoch Werte im Bereich von etwa 0,05 bis 0,2 mm gewählt.In order to facilitate the breakthrough of any oxide skins that may be present, the contact surfaces 120 are expediently provided with an embossment 120 ′. This embossing 120 'is shown schematically in FIG. 4, which shows a view from the viewing direction X of the contact surface 120 of FIG. 3. The prefix 120 'preferably has a cutting-like profile with a triangular cross-section. This is illustrated schematically by FIG. 5, which is a sectional view along line 5 - 5 of FIG. 4. The roughness depth of the embossment 120 ′ can be in the range from approximately 0.01 to 1 mm, but values in the range from approximately 0.05 to 0.2 mm are preferably selected.

Das Schaltelement eignet sich hervorragend für Schaltanwendungen im Bereich geringer Strombelastungen in der Größenordnung weniger Milliampere und darunter bis zu mittleren Belastungen in der Größenordnung einiger 10 Ampere. Durch die beschriebene Form und Anordnung der Kontaktelemente lassen sich dabei die durch Oxydbildung einstellenden Probleme, insbesondere bei geringer Strombelastung beherrschen. Eine lange Lebensdauer und Zuverlässigkeit, insbesondere bei höherer Strombelastung wird hauptsächlich dadurch erreicht, daß es möglich ist, die Kontaktflächen der Kontaktelemente der Strombelastung entsprechend groß zu wählen, ohne die Funktion bei geringer-Belastung zu beeinträchtigen.The switching element is excellently suited for switching applications in the area of low current loads in the order of a few milliamperes and below that to medium loads in the order of a few 10 amperes. The described shape and arrangement of the contact elements enable the problems caused by oxide formation to be mastered, in particular when the current load is low. A long service life and reliability, especially with a higher current load, is mainly achieved by making it possible to choose the contact areas of the contact elements corresponding to the current load without impairing the function at low loads.

Es versteht sich von selbst, daß in an sich bekannter Weise die Kontaktflächen noch mit Edelmetallen, insbesondere Gold vergütet werden können.It goes without saying that, in a manner known per se, the contact surfaces can also be coated with precious metals, in particular gold.

Claims (5)

1. Schaltelement mit in einem Gehäuse ortsfest angeordneten Festkontakten und mit einem im Gehäuse gleitbar gelagerten Kontaktbrückenträger, dessen Kontaktbrücken je nach Stellung des Kontaktbrückenträgers je zwei Festkontakte galvanisch miteinander verbinden bzw. eine leitende Verbindung zwischen den Festkontakten unterbrechen, dadurch gekennzeichnet, daß die jeweils zusammenwirkenden Endstücke der Festkontakte (12, 12') und Kontaktbrücken (14,14') in bezug auf die Bewegungsachse des Kontaktbrückenträgers (13) schräg verlaufend angeordnet sind.1.Switching element with fixed contacts arranged in a housing and with a contact bridge carrier slidably mounted in the housing, the contact bridges of which, depending on the position of the contact bridge carrier, galvanically connect two fixed contacts to one another or interrupt a conductive connection between the fixed contacts, characterized in that the respectively interacting end pieces the fixed contacts (12, 12 ') and contact bridges (14, 14') are arranged obliquely with respect to the movement axis of the contact bridge support (13). 2. Schaltelement nach Anspruch 1, dadurch gekennzeichnet, daß zumindest die Kontaktflächen (120) der Festkontakte (12, 12') aus einem gut leitenden Metall, z. B. Feinsilber bestehen und durch Plattierung mit den Festkontakt (12, 12') verbunden sind.2. Switching element according to claim 1, characterized in that at least the contact surfaces (120) of the fixed contacts (12, 12 ') made of a highly conductive metal, for. B. fine silver and are connected by plating with the fixed contact (12, 12 '). 3. Schaltelement nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Kontaktflächen(120) mit einer Prägung (120') versehen sind.3. Switching element according to one of claims 1 or 2, characterized in that the contact surfaces (120) are provided with an embossing (120 '). 4. Schaltelement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Prägung (120) ein schneidenförmiges Profil mit vorzugsweise dreieckförmigen Querschnitt aufweist.4. Switching element according to one of claims 1 to 3, characterized in that the embossing (120) has a cutting-shaped profile with a preferably triangular cross section. 5. Schaltelement nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Rauhtiefe der Prägung (120) in einem Bereich zwischen 0,01 und 1 mm, vorzugsweise zwischen 0,05 und 0,2 mm liegt.5. Switching element according to one of claims 1 to 4, characterized in that the roughness of the embossing (120) is in a range between 0.01 and 1 mm, preferably between 0.05 and 0.2 mm.
EP83108318A 1982-09-11 1983-08-24 Switch with bridging contalts Expired - Lifetime EP0106075B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823233858 DE3233858A1 (en) 1982-09-11 1982-09-11 SWITCHING ELEMENT
DE3233858 1982-09-11

Publications (3)

Publication Number Publication Date
EP0106075A2 true EP0106075A2 (en) 1984-04-25
EP0106075A3 EP0106075A3 (en) 1987-01-21
EP0106075B1 EP0106075B1 (en) 1990-04-25

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EP83108318A Expired - Lifetime EP0106075B1 (en) 1982-09-11 1983-08-24 Switch with bridging contalts

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DE (2) DE3233858A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008043186A1 (en) 2008-10-27 2010-04-29 Robert Bosch Gmbh Electromagnetic switch for a starting device and method for switching the electromagnetic switch

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FR1170621A (en) * 1957-04-04 1959-01-16 Kienzle Uhrenfabriken Ag Electrical contact device
DE2315567A1 (en) * 1973-03-28 1974-10-17 Huetoegepgyar CONTACT AND ACTUATION DEVICE FOR ELECTRIC SWITCHES, ESPECIALLY FOR MOTOR STARTING RELAY
DE2723624A1 (en) * 1977-05-03 1978-11-09 Bbc Brown Boveri & Cie ELECTRIC SWITCH
FR2504311A1 (en) * 1981-04-15 1982-10-22 Telemecanique Electrique Repetitive make=and=break switch with silver contacts - of spherical and plane forms allowing compensatory metal transfer and criss=crossed pattern of furrows

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE595409C (en) * 1931-04-26 1934-04-10 Stotz Kontakt Gmbh Switching device with an insulating material switch that carries several contact bridges
US2490020A (en) * 1946-02-11 1949-12-06 First Ind Corp Electrical contact
FR1170621A (en) * 1957-04-04 1959-01-16 Kienzle Uhrenfabriken Ag Electrical contact device
DE2315567A1 (en) * 1973-03-28 1974-10-17 Huetoegepgyar CONTACT AND ACTUATION DEVICE FOR ELECTRIC SWITCHES, ESPECIALLY FOR MOTOR STARTING RELAY
DE2723624A1 (en) * 1977-05-03 1978-11-09 Bbc Brown Boveri & Cie ELECTRIC SWITCH
FR2504311A1 (en) * 1981-04-15 1982-10-22 Telemecanique Electrique Repetitive make=and=break switch with silver contacts - of spherical and plane forms allowing compensatory metal transfer and criss=crossed pattern of furrows

Also Published As

Publication number Publication date
EP0106075B1 (en) 1990-04-25
DE3233858A1 (en) 1984-03-15
DE3381507D1 (en) 1990-05-31
EP0106075A3 (en) 1987-01-21

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