EP1623484B1 - Multipoint plug for electrically connecting metal strip conductors arranged on both sides of a circuit board - Google Patents

Multipoint plug for electrically connecting metal strip conductors arranged on both sides of a circuit board Download PDF

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Publication number
EP1623484B1
EP1623484B1 EP04726435A EP04726435A EP1623484B1 EP 1623484 B1 EP1623484 B1 EP 1623484B1 EP 04726435 A EP04726435 A EP 04726435A EP 04726435 A EP04726435 A EP 04726435A EP 1623484 B1 EP1623484 B1 EP 1623484B1
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EP
European Patent Office
Prior art keywords
contact
contact elements
circuit board
printed circuit
strip
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 - Fee Related
Application number
EP04726435A
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German (de)
French (fr)
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EP1623484A1 (en
Inventor
Eric Lude
Thomas SCHÜPPLER
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Siemens AG
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Siemens AG
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Filing date
Publication date
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Publication of EP1623484A1 publication Critical patent/EP1623484A1/en
Application granted granted Critical
Publication of EP1623484B1 publication Critical patent/EP1623484B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/515—Terminal blocks providing connections to wires or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7031—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity
    • H01R13/7034—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity the terminals being in direct electric contact separated by double sided connecting element

Definitions

  • the invention relates to a contact strip for making electrical contact on both sides of a circuit board extending metallic interconnects, wherein the contact strip has a base body arranged in its longitudinal direction opposite, resilient contact elements, that between the opposing contact elements, the circuit board with an end face for making an electrical contact their interconnects with the contact elements can be inserted, wherein each opposing contact elements within the body are electrically isolated from each other and each contact element for electrically contacting a conductor track of the printed circuit board has at least two contact points following one another along the insertion direction of the printed circuit board.
  • Such contact strips are commonly known for example as so-called.
  • PCI connector z. B. on motherboards of computers are arranged. Since the aforementioned PCI connectors are used only for low currents and voltages, the individual contact elements of the PCI connectors can be arranged very closely adjacent, without reducing the dielectric strength of the connector.
  • a contact strip for use in computer systems for example, for receiving processors or memory cards, known.
  • Opposing contact elements are electrically isolated from each other in the main body of the known contact list. Since in the voltage range in which the known contact strip is used, no problems with regard to the dielectric strength are to be expected, the opposing contact elements without be further close to each other.
  • the invention has for its object to provide a contact strip of the type mentioned above, which has a comparatively high dielectric strength at relatively small size.
  • the basic body a in the longitudinal direction of the main body between the opposing contact elements rising web has, in which a running between the opposing contact elements recess is provided, which partially surrounds the narrow side of the printed circuit board.
  • the electrical creepage distance between two opposing contact elements is increased when the printed circuit board is inserted in that one end face of the printed circuit board is at least partially surrounded by the recess;
  • the creepage path is significantly extended by this labyrinthine design.
  • an inserted printed circuit board can thereby be mechanically stabilized.
  • the creepage distance between each two opposing contact elements can be further extended particularly advantageously, thereby further increasing the dielectric strength of the contact strip.
  • each contact element has at least two contact points for the electrical contacting of a metal conductor track running on the printed circuit board.
  • An advantageous embodiment of the contact strip according to the invention provides that the contact elements are formed wavy in the region of their contact points.
  • the required number of contact points eg two
  • the required number of contact points are always connected to the corresponding conductor track of the printed circuit board, since one in the area of its contact points Wavy trained contact element can invest particularly flexible to the circuit board.
  • a further advantageous embodiment of the contact strip according to the invention provides that the contact elements are slotted in the region of their contact points in their longitudinal direction at least once. This makes it particularly advantageous to ensure that even with a slanted or tilted inserted circuit board, the contact elements with their contact points can flexibly adapt to the position of the circuit board.
  • a further advantageous embodiment of the contact strip according to the invention further provides that the contact elements are biased in the direction of the respective opposite contact element such that in the absence of printed circuit board between such contact elements, an electrical contact is made.
  • a further advantageous embodiment of the contact strip according to the invention also provides that the contact elements are each connected to an electrical supply line with arranged on the base body in a plane terminals, wherein the terminals of adjacent contact elements in the plane are offset from one another. To this Way can be kept as small as possible by the electrical connections required space while maintaining the dielectric strength.
  • the contact elements are each connected to an electrical supply line with arranged on the base body in at least two levels terminals, each of the terminals of adjacent contact elements are arranged on different levels.
  • the space requirement for the same voltage resistance can be largely reduced.
  • connections are provided with clamping screws for fastening electrical connections to be connected to the respective connections.
  • clamping screws for fastening electrical connections to be connected to the respective connections.
  • Figure 1 shows a contact strip 1 with a base body 2.
  • resilient contact elements 3,3a, 3b, 3c are arranged in two opposite rows in its longitudinal direction.
  • the contact elements are made of an electrically conductive material and are designed to spring toward each other.
  • two opposing contact elements for example, 3a and 3b
  • the contact elements 3,3a, 3b, 3c are surrounded by a box-shaped border 4, whereby mechanical damage to the contact elements, for example, during storage and transport and careless handling of the contact strip to be prevented.
  • electrical cable guides (not shown in Figure 1), which connect the individual contact elements 3,3a, 3b, 3c each with a terminal 5 on the outside of the body.
  • this printed circuit board is inserted between the mutually opposite rows of contact elements 3, 3a, 3b, 3c with their front side from above.
  • longitudinal guides 6 simplify accurate placement of the circuit board when inserted between the contact elements 3,3a, 3b, 3c and stabilize when inserted PCB this mechanically in their position.
  • FIG. 1 A cross-sectional view of the contact strip according to FIG. 1 is shown with an inserted printed circuit board in FIG.
  • the same reference numerals have been used as in Figure 1 for corresponding components.
  • Figure 2 the position of an inserted circuit board 11 between the two rows of contact elements, of which
  • the contact elements 3a and 3b see FIG.
  • a so-called "double-decker" structure of the contact strip can be seen with terminals (eg, 5a and 5c) lying one above the other on two levels.
  • an electrical connection 12 is schematically indicated between the contact element 3b and an electrical connection 5b.
  • Such an electrical connection for example, also exists between the contact element 3a and the electrical connection 5a.
  • a further contact element 3c located in front of or behind the contact element 3a in the longitudinal direction of the contact strip would be connected, for example, to the electrical connection 5c on the second connection plane.
  • always adjacent contact elements for example 3a and 3c
  • a further contact element following the contact element 3c would in turn be connected to an electrical connection on the upper connection plane analogous to the electrical contact element 3a.
  • FIG. 2 also shows in a schematic representation by way of example for the electrical connection 5b a clamping screw 13 with the aid of which, for example, a cable lug introduced into the electrical connection 5b can be clamped.
  • Such clamping screws can also be used in the other electrical connections of the contact strip.
  • any higher number of connection levels conceivable.
  • FIG. 3 shows the contact elements 3a and 3b in a greatly enlarged view.
  • the printed circuit board 11 (see Figure 2) is inserted.
  • the printed circuit board 11 is provided with metallic conductor tracks 21 and 22, which each represent separate cable guides on the printed circuit board. Consequently, the tracks 21 and 22 are not necessarily at the same voltage potential and do not carry the same currents.
  • the circuit board 11 When the circuit board 11 is inserted, there is an electrical contact between the contact element 3a and the conductor track 21 on the one hand and the contact element 3b and the conductor track 22 on the other. Since the interconnects 21, 22 represent separate current paths, the contact elements 3a and 3b must also be electrically insulated from one another.
  • the longitudinal extent of the contact strip can be reduced by a factor of 2 with a constant number of contacted interconnects in comparison to an embodiment in which Conductor tracks 21 and 22 would be at the same potential and thus no electrical insulation of the contact elements 3a and 3b is provided from each other.
  • the contact elements 3a and 3b are configured such that they each with at least two separate contact points with the Conductor 21 and 22 come on the circuit board 11 in electrical connection.
  • the contact elements 3a and 3b according to FIG. 3 are advantageously designed to be undulating in the region of their contact points 23. This wave-shaped configuration also ensures that the contact elements 3a, 3b can flexibly adapt to the printed conductors 21, 22, for example even in the case of a slightly inclined position of the printed circuit board 11.
  • the creepage distances are extended when this recess 24 extends on a web 25 arranged on the base body. In such a case arise between any two points of the contact elements 3a and 3b by a labyrinthine structure as long as possible creepage distances.
  • FIG. 4 shows a possible embodiment of a contact element.
  • the contact element 3b (see FIG. In addition to a side view A, a front view B of the contact element 3b is shown. It can be seen clearly that the contact element 3b between two side arms 31 and 32 has a slot 33, so it is so slotted once.
  • the individual contact elements eg 3b
  • the individual contact elements can be adapted even more flexibly to a printed circuit board that is slightly inclined or tilted into the contact strip.
  • the individual contact points 23 are divided by a slotted design into at least two pairs of contact points 23a and 23b per contact point 23, which are separated from each other by the slot 33. In this way, a further improved heat dissipation per contact point 23a or 23b can be achieved.
  • FIG. 5 shows a plan view of a contact strip 1, in which in turn identical components are identified by the same reference numbers as in the preceding figures.
  • a further possible embodiment of the electrical connections 5 will be shown with reference to FIG.
  • double or multi-level embodiment namely, only one connection level per contact strip 1 can be used, in each case the electrical connections, for. B. 41 and 42, adjacent contact elements, for. B. 43 and 44, each offset within the same plane to each other.
  • the required distance between two respectively adjacent lying electrical terminals, for example, 41 and 42 reach, so that the required dielectric strength is given.
  • Contact strips of the type described can, for example, in electrical equipment, such.
  • electrical protection or control devices are used, where they can be easily connected due to their relatively stable embodiment held with a housing of the corresponding electrical device.
  • Circuit boards with corresponding circuits can each be inserted in such a contact strip.
  • an electrical device can be very flexibly equipped with printed circuit boards.
  • Due to the illustrated embodiment, in particular with the respectively opposite electrically insulated contact elements the longitudinal extent of such a contact strip can be significantly reduced with a constant number of contacted tracks on the circuit board. This is particularly important since in the mentioned electrical devices, restrictions in the spatial extent, in particular in the width and height of the electrical devices, are often given.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Description

Kontaktleiste zur elektrischen Kontaktierung von beidseitig auf einer Leiterplatte verlaufenden metallischen LeiterbahnenContact strip for electrical contacting of both sides of a printed circuit board extending metallic conductor tracks

Die Erfindung betrifft eine Kontaktleiste zur elektrischen Kontaktierung von beidseitig auf einer Leiterplatte verlaufenden metallischen Leiterbahnen, wobei die Kontaktleiste einen Grundkörper mit in seiner Längsrichtung derart gegenüberliegend angeordneten, federnden Kontaktelementen aufweist, dass zwischen den einander gegenüberliegenden Kontaktelementen die Leiterplatte mit einer Stirnseite zur Herstellung einer elektrischen Kontaktierung ihrer Leiterbahnen mit den Kontaktelementen einschiebbar ist, wobei jeweils einander gegenüberliegende Kontaktelemente innerhalb des Grundkörpers elektrisch voneinander isoliert sind und jedes Kontaktelement zur elektrischen Kontaktierung einer Leiterbahn der Leiterplatte zumindest zwei entlang der Einschubrichtung der Leiterplatte aufeinander folgende Kontaktstellen aufweist.The invention relates to a contact strip for making electrical contact on both sides of a circuit board extending metallic interconnects, wherein the contact strip has a base body arranged in its longitudinal direction opposite, resilient contact elements, that between the opposing contact elements, the circuit board with an end face for making an electrical contact their interconnects with the contact elements can be inserted, wherein each opposing contact elements within the body are electrically isolated from each other and each contact element for electrically contacting a conductor track of the printed circuit board has at least two contact points following one another along the insertion direction of the printed circuit board.

Solche Kontaktleisten sind landläufig beispielsweise als sog. PCI-Steckverbinder bekannt, die z. B. auf Hauptplatinen ("Motherboards") von Computern angeordnet sind. Da die genannten PCI-Steckverbinder nur für geringe Ströme und Spannungen verwendet werden, können die einzelnen Kontaktelemente der PCI-Steckverbinder sehr eng benachbart angeordnet werden, ohne die Spannungsfestigkeit des Steckverbinders zu verringern. So ist beispielsweise aus der US-Patentanmeldung US 2002/0009929 eine Kontaktleiste zum Einsatz in Computersystemen, beispielsweise zur Aufnahme von Prozessoren oder Speicherkarten, bekannt. Einander gegenüberliegende Kontaktelemente sind im Grundkörper der bekannten Kontaktliste elektrisch voneinander isoliert. Da in dem Spannungsbereich, in dem die bekannte Kontaktleiste verwendet wird, keine Probleme hinsichtlich der Spannungsfestigkeit zu erwarten sind, können die einander gegenüberliegenden Kontaktelemente ohne weiteres raumnah zueinander angeordnet sein. Weitere Kontaktleisten für den Einsatz bei kleinsten Spannungen sind ferner aus den US-Patentschriften US 6,309,262 , US 6,149,468 , US 5,509,826 und US 5,848,920 bekannt. Eine Kontaktleiste nach der Präambel des Anspruchs 1 ist aus der US-Patentschrift US 3,601,774 bekannt.Such contact strips are commonly known for example as so-called. PCI connector, z. B. on motherboards of computers are arranged. Since the aforementioned PCI connectors are used only for low currents and voltages, the individual contact elements of the PCI connectors can be arranged very closely adjacent, without reducing the dielectric strength of the connector. For example, from the US patent application US 2002/0009929 a contact strip for use in computer systems, for example, for receiving processors or memory cards, known. Opposing contact elements are electrically isolated from each other in the main body of the known contact list. Since in the voltage range in which the known contact strip is used, no problems with regard to the dielectric strength are to be expected, the opposing contact elements without be further close to each other. Other contact strips for use with the smallest voltages are also from the U.S. Pat. Nos. 6,309,262 . US 6,149,468 . US 5,509,826 and US 5,848,920 known. A contact strip according to the preamble of claim 1 is known from US Pat. No. 3,601,774 known.

Aus einem Produktkatalog der Fa. Magnum (Cooper Bussmann) "Terminal Blocks Catalog, 2003", Seite 59 , ist schließlich unter der Bezeichnung "Edge Connectors, Series 15104" ein Steckverbinder bekannt. Bei dem bekannten Steckverbinder sind allerdings jeweils gegenüberliegende Kontaktelemente miteinander elektrisch verbunden und jeweils benachbarte Kontaktelemente weisen einen im Vergleich zu dem eingangs genannten PCI-Steckverbinder erhöhten Abstand zueinander auf, um eine relativ hohe Spannungsfestigkeit dieses Steckverbinders zu gewährleisten. Zur Kontaktierung einer Leiterplatte mit auf ihrer Oberfläche angeordneten metallischen Leiterbahnen wird eine solche jeweils zwischen die gegenüberliegenden Kontaktelemente eingeschoben und durch die Federkraft der einzelnen Kontaktelemente in ihrer Position gehalten. Diese Ausführung besitzt insbesondere durch den großen Abstand der benachbarten Kontaktelemente zueinander einen vergleichsweise hohen Platzbedarf.From a product catalog of the Magnum (Cooper Bussmann) "Terminal Blocks Catalog, 2003", page 59 , Finally, under the name "Edge Connectors, Series 15104" a connector is known. In the known connector, however, in each case opposite contact elements are electrically connected to each other and each adjacent contact elements have a compared to the aforementioned PCI connector increased distance from each other to ensure a relatively high dielectric strength of this connector. For contacting a printed circuit board with arranged on its surface metallic interconnects such is inserted in each case between the opposite contact elements and held by the spring force of the individual contact elements in their position. This embodiment has in particular by the large distance of the adjacent contact elements to each other a comparatively large amount of space.

Der Erfindung liegt die Aufgabe zugrunde, eine Kontaktleiste der oben genannten Art anzugeben, die bei relativ geringer Baugröße eine vergleichsweise hohe Spannungsfestigkeit besitzt.The invention has for its object to provide a contact strip of the type mentioned above, which has a comparatively high dielectric strength at relatively small size.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Grundkörper einen sich in der Längsrichtung des Grundkörpers zwischen den einander gegenüberliegenden Kontaktelementen erhebenden Steg aufweist, in dem eine zwischen den einander gegenüberliegenden Kontaktelementen verlaufende Ausnehmung vorgesehen ist, die bei eingeschobener Leiterplatte deren Schmalseite teilweise umgibt.This object is achieved in that the basic body a in the longitudinal direction of the main body between the opposing contact elements rising web has, in which a running between the opposing contact elements recess is provided, which partially surrounds the narrow side of the printed circuit board.

Auf diese Weise wird der elektrische Kriechweg zwischen zwei sich gegenüberliegenden Kontaktelementen bei eingeschobener Leiterplatte dadurch vergrößert, dass eine Stirnseite der Leiterplatte zumindest teilweise von der Ausnehmung umgeben ist; der Kriechweg wird durch diese labyrinthartige Ausgestaltung deutlich verlängert. Ferner kann eine eingeschobene Leiterplatte hierdurch mechanisch stabilisiert werden.In this way, the electrical creepage distance between two opposing contact elements is increased when the printed circuit board is inserted in that one end face of the printed circuit board is at least partially surrounded by the recess; The creepage path is significantly extended by this labyrinthine design. Furthermore, an inserted printed circuit board can thereby be mechanically stabilized.

Durch die Ausgestaltung des Steges mit der Ausnehmung lässt sich der Kriechweg zwischen je zwei gegenüberliegenden Kontaktelementen besonders vorteilhaft weiter verlängern, wodurch sich die Spannungsfestigkeit der Kontaktleiste weiter erhöht.Due to the configuration of the web with the recess, the creepage distance between each two opposing contact elements can be further extended particularly advantageously, thereby further increasing the dielectric strength of the contact strip.

Um eine erhöhte Stromfestigkeit zu erreichen, weist jedes Kontaktelement mindestens zwei Kontaktstellen zur elektrischen Kontaktierung jeweils einer auf der Leiterplatte verlaufenden metallischen Leiterbahn auf.In order to achieve an increased current stability, each contact element has at least two contact points for the electrical contacting of a metal conductor track running on the printed circuit board.

Eine vorteilhafte Ausführungsform der erfindungsgemäßen Kontaktleiste sieht vor, dass die Kontaktelemente im Bereich ihrer Kontaktstellen wellenförmig ausgebildet sind. Durch diese Ausgestaltung lässt sich besonders vorteilhaft erreichen, dass immer die geforderte Anzahl an Kontaktstellen (z. B. zwei) mit der entsprechenden Leiterbahn der Leiterplatte in Verbindung steht, da ein in dem Bereich seiner Kontaktstellen wellenförmig ausgebildetes Kontaktelement sich besonders flexibel an die Leiterplatte anlegen kann.An advantageous embodiment of the contact strip according to the invention provides that the contact elements are formed wavy in the region of their contact points. By means of this configuration, it can be achieved particularly advantageously that the required number of contact points (eg two) are always connected to the corresponding conductor track of the printed circuit board, since one in the area of its contact points Wavy trained contact element can invest particularly flexible to the circuit board.

Eine weitere vorteilhafte Ausführungsform der erfindungsgemäßen Kontaktleiste sieht vor, dass die Kontaktelemente im Bereich ihrer Kontaktstellen in ihrer Längsrichtung zumindest einmal geschlitzt sind. Hierdurch lässt sich besonders vorteilhaft sicherstellen, dass auch bei einer schräg oder verkantet eingeschobenen Leiterplatte sich die Kontaktelemente mit ihren Kontaktstellen flexibel an die Lage der Leiterplatte anpassen können.A further advantageous embodiment of the contact strip according to the invention provides that the contact elements are slotted in the region of their contact points in their longitudinal direction at least once. This makes it particularly advantageous to ensure that even with a slanted or tilted inserted circuit board, the contact elements with their contact points can flexibly adapt to the position of the circuit board.

Eine weitere vorteilhafte Ausführungsform der erfindungsgemäßen Kontaktleiste sieht ferner vor, dass die Kontaktelemente in Richtung des jeweils gegenüberliegenden Kontaktelementes derart vorgespannt sind, dass bei fehlender Leiterplatte zwischen solchen Kontaktelementen ein elektrischer Kontakt hergestellt ist. Hierdurch lässt sich besonders vorteilhaft erreichen, dass jeweils zwei sich gegenüberliegende Kontaktelemente bei nicht eingeschobener Leiterplatte elektrisch kurzgeschlossen sind und somit keine Gefahr eines zwischen den Kontaktelementen auftretenden Lichtbogens besteht, der die Kontaktelemente beschädigen könnte. Ferner lässt sich auf diese Weise vorteilhaft eine Überwachung der Kontaktleiste dahingehend durchführen, ob eine Leiterplatte eingeschoben ist.A further advantageous embodiment of the contact strip according to the invention further provides that the contact elements are biased in the direction of the respective opposite contact element such that in the absence of printed circuit board between such contact elements, an electrical contact is made. This makes it particularly advantageous that each two opposing contact elements are electrically short-circuited when not inserted circuit board and thus there is no danger of occurring between the contact elements arc, which could damage the contact elements. Furthermore, in this way it is advantageously possible to monitor the contact strip to determine whether a printed circuit board has been inserted.

Eine weitere vorteilhafte Ausführungsform der erfindungsgemäßen Kontaktleiste sieht zudem vor, dass die Kontaktelemente mit jeweils einer elektrischen Zuleitung mit an dem Grundkörper in einer Ebene angeordneten Anschlüssen verbunden sind, wobei jeweils die Anschlüsse benachbarter Kontaktelemente in der Ebene versetzt zueinander angeordnet sind. Auf diese Weise lässt sich der durch die elektrischen Anschlüsse benötigte Platzbedarf bei Aufrechterhaltung der Spannungsfestigkeit möglichst klein halten.A further advantageous embodiment of the contact strip according to the invention also provides that the contact elements are each connected to an electrical supply line with arranged on the base body in a plane terminals, wherein the terminals of adjacent contact elements in the plane are offset from one another. To this Way can be kept as small as possible by the electrical connections required space while maintaining the dielectric strength.

Alternativ dazu kann auch vorgesehen sein, dass die Kontaktelemente mit jeweils einer elektrischen Zuleitung mit an dem Grundkörper in zumindest zwei Ebenen angeordneten Anschlüssen verbunden sind, wobei jeweils die Anschlüsse benachbarter Kontaktelemente auf unterschiedlichen Ebenen angeordnet sind. Durch die auf zumindest zwei Ebenen angeordneten elektrischen Anschlüsse lässt sich wiederum der Platzbedarf bei gleicher Spannungsfestigkeit weitgehend reduzieren.Alternatively, it can also be provided that the contact elements are each connected to an electrical supply line with arranged on the base body in at least two levels terminals, each of the terminals of adjacent contact elements are arranged on different levels. By arranged on at least two levels electrical connections in turn, the space requirement for the same voltage resistance can be largely reduced.

Vorteilhafterweise kann hierbei vorgesehen sein, dass die Anschlüsse mit Klemmschrauben zum Befestigen von mit den jeweiligen Anschlüssen zu verbindenden elektrischen Leitungen versehen sind. Auf diese Weise kann besonders einfach eine Verbindung der Kontaktleiste über ihre jeweiligen Anschlüsse mit weiteren elektrischen Leitungen erfolgen.Advantageously, it may be provided here that the connections are provided with clamping screws for fastening electrical connections to be connected to the respective connections. In this way, it is particularly easy to connect the contact strip via their respective connections with other electrical lines.

Zur näheren Erläuterung der Erfindung sind in

Figur 1
ein Ausführungsbeispiel einer erfindungsgemäßen Kontaktleiste, in
Figur 2
eine Querschnittsansicht der in Figur 1 dargestellten Kontaktleiste mit eingeschobener Leiterplatte, in
Figur 3
eine vergrößerte Darstellung eines Ausführungsbeispiels von Kontaktelementen, in
Figur 4
ein weiteres Ausführungsbeispiel erfindungsgemäßer Kontaktelemente und in
Figur 5
ein Ausführungsbeispiel einer erfindungsgemäßen Kontaktleiste in der Draufsicht
dargestellt.For a more detailed explanation of the invention are in
FIG. 1
an embodiment of a contact strip according to the invention, in
FIG. 2
a cross-sectional view of the contact strip shown in Figure 1 with inserted printed circuit board, in
FIG. 3
an enlarged view of an embodiment of contact elements, in
FIG. 4
a further embodiment of inventive contact elements and in
FIG. 5
An embodiment of a contact strip according to the invention in plan view
shown.

Figur 1 zeigt eine Kontaktleiste 1 mit einem Grundkörper 2. Auf dem Grundkörper 2 sind in seiner Längsrichtung federnde Kontaktelemente 3,3a,3b,3c in zwei einander gegenüberliegenden Reihen angeordnet. Die Kontaktelemente bestehen aus einem elektrisch leitenden Material und sind in Richtung aufeinander zu federnd ausgebildet. Jeweils zwei einander gegenüberliegende Kontaktelemente (beispielsweise 3a und 3b) sind elektrisch voneinander isoliert. Die Kontaktelemente 3,3a,3b,3c sind von einer kastenförmigen Umrandung 4 umgeben, wodurch eine mechanische Beschädigung der Kontaktelemente, beispielsweise bei Lagerung und Transport sowie unvorsichtiger Handhabung der Kontaktleiste, verhindert werden soll. Innerhalb des Grundkörpers 2 befinden sich elektrische Leitungsführungen (in Figur 1 nicht dargestellt), die die einzelnen Kontaktelemente 3,3a,3b,3c jeweils mit einem Anschluss 5 an der Außenseite des Grundkörpers verbinden.Figure 1 shows a contact strip 1 with a base body 2. On the base body 2 resilient contact elements 3,3a, 3b, 3c are arranged in two opposite rows in its longitudinal direction. The contact elements are made of an electrically conductive material and are designed to spring toward each other. In each case two opposing contact elements (for example, 3a and 3b) are electrically isolated from each other. The contact elements 3,3a, 3b, 3c are surrounded by a box-shaped border 4, whereby mechanical damage to the contact elements, for example, during storage and transport and careless handling of the contact strip to be prevented. Within the main body 2 are electrical cable guides (not shown in Figure 1), which connect the individual contact elements 3,3a, 3b, 3c each with a terminal 5 on the outside of the body.

Zur Kontaktierung von auf einer Leiterplatte vorgesehenen Leiterbahnen wird diese Leiterplatte zwischen die einander gegenüberliegenden Reihen von Kontaktelementen 3,3a,3b,3c mit ihrer Stirnseite von oben eingeschoben. In der Umrandung 4 vorgesehene Längsführungen 6 vereinfachen eine genaue Platzierung der Leiterplatte beim Einschieben zwischen den Kontaktelementen 3,3a,3b,3c und stabilisieren bei eingeschobener Leiterplatte diese mechanisch in ihrer Lage.For contacting conductor tracks provided on a printed circuit board, this printed circuit board is inserted between the mutually opposite rows of contact elements 3, 3a, 3b, 3c with their front side from above. Provided in the border 4 longitudinal guides 6 simplify accurate placement of the circuit board when inserted between the contact elements 3,3a, 3b, 3c and stabilize when inserted PCB this mechanically in their position.

Eine Querschnittsansicht der Kontaktleiste gemäß Figur 1 ist mit eingeschobener Leiterplatte in Figur 2 dargestellt. Hierbei sind für einander entsprechende Komponenten dieselben Bezugszeichen wie in Figur 1 verwendet worden. Man erkennt in Figur 2 deutlich die Lage einer eingeschobenen Leiterplatte 11 zwischen den beiden Reihen von Kontaktelementen, von denen hier beispielhaft die Kontaktelemente 3a und 3b (vgl. Figur 1) dargestellt sind. Ferner erkennt man in Figur 2 einen sogenannten "doppelstöckigen" Aufbau der Kontaktleiste mit auf zwei Ebenen übereinander liegenden Anschlüssen (z. B.5a und 5c). Beispielhaft ist zwischen dem Kontaktelement 3b und einem elektrischen Anschluss 5b schematisch eine elektrische Verbindung 12 angedeutet. Eine solche elektrische Verbindung besteht beispielsweise auch zwischen dem Kontaktelement 3a und dem elektrischen Anschluss 5a. Ein in Längsrichtung der Kontaktleiste vor oder hinter dem Kontaktelement 3a liegendes weiteres Kontaktelement 3c (vgl. Figur 1) wäre beispielsweise mit dem elektrischen Anschluss 5c auf der zweiten Anschlussebene verbunden. Solchermaßen können immer benachbart liegende Kontaktelemente (beispielsweise 3a und 3c) mit elektrischen Anschlüssen auf jeweils unterschiedlichen Ebenen verbunden sein. Demzufolge wäre ein auf das Kontaktelement 3c folgendes weiteres Kontaktelement wiederum mit einem elektrischen Anschluss auf der oberen Anschlussebene analog zum elektrischen Kontaktelement 3a verbunden. Auf diese Weise lässt sich trotz den aus praktischen Gründen üblicherweise recht groß zu gestaltenden elektrischen Anschlüssen, in die beispielsweise Kabelschuhe eingeführt werden müssen, dennoch eine in Längsrichtung der Kontaktleiste relativ platzsparende Bauweise erreichen.A cross-sectional view of the contact strip according to FIG. 1 is shown with an inserted printed circuit board in FIG. Here, the same reference numerals have been used as in Figure 1 for corresponding components. It can be clearly seen in Figure 2, the position of an inserted circuit board 11 between the two rows of contact elements, of which Here, by way of example, the contact elements 3a and 3b (see FIG. Furthermore, in FIG. 2, a so-called "double-decker" structure of the contact strip can be seen with terminals (eg, 5a and 5c) lying one above the other on two levels. By way of example, an electrical connection 12 is schematically indicated between the contact element 3b and an electrical connection 5b. Such an electrical connection, for example, also exists between the contact element 3a and the electrical connection 5a. A further contact element 3c (see FIG. 1) located in front of or behind the contact element 3a in the longitudinal direction of the contact strip would be connected, for example, to the electrical connection 5c on the second connection plane. In this way, always adjacent contact elements (for example 3a and 3c) can be connected to electrical connections at respectively different levels. As a result, a further contact element following the contact element 3c would in turn be connected to an electrical connection on the upper connection plane analogous to the electrical contact element 3a. In this way, despite the practical reasons usually quite large to be designed electrical connections, in which, for example, cable lugs must be introduced, yet achieve a relatively space-saving in the longitudinal direction of the contact strip construction.

Figur 2 zeigt ferner in schematischer Darstellung beispielhaft für den elektrischen Anschluss 5b eine Klemmschraube 13, mit deren Hilfe beispielsweise ein in den elektrischen Anschluss 5b eingeführter Kabelschuh festgeklemmt werden kann. Solche Klemmschrauben sind auch in den anderen elektrischen Anschlüssen der Kontaktleiste einsetzbar. Neben der in Figur 2 gezeigten doppelstöckigen Bauweise der Kontaktleiste ist natürlich auch eine beliebige höhere Anzahl von Anschlussebenen denkbar.FIG. 2 also shows in a schematic representation by way of example for the electrical connection 5b a clamping screw 13 with the aid of which, for example, a cable lug introduced into the electrical connection 5b can be clamped. Such clamping screws can also be used in the other electrical connections of the contact strip. In addition to the double-decker construction of the contact strip shown in Figure 2 Of course, any higher number of connection levels conceivable.

Figur 3 zeigt die Kontaktelemente 3a und 3b in stark vergrößerter Ansicht. Zwischen den sich gegenüberliegenden Kontaktelementen 3a,3b ist die Leiterplatte 11 (vgl. Figur 2) eingeschoben. Die Leiterplatte 11 ist mit metallischen Leiterbahnen 21 und 22 versehen, die jeweils separate Leitungsführungen auf der Leiterplatte darstellen. Folglich liegen die Leiterbahnen 21 und 22 nicht notwendigerweise auf demselben Spannungspotential und führen nicht dieselben Ströme. Bei eingeschobener Leiterplatte 11 besteht ein elektrischer Kontakt zwischen dem Kontaktelement 3a und der Leiterbahn 21 einerseits und dem Kontaktelement 3b und der Leiterbahn 22 andererseits. Da die Leiterbahnen 21,22 voneinander getrennte Stromwege darstellen, müssen auch die Kontaktelemente 3a und 3b voneinander elektrisch isoliert sein. Dadurch, dass jeweils zwei einander gegenüberliegende Kontaktelemente 3a und 3b der Kontaktleiste jeweils unterschiedliche Leiterbahnen kontaktieren und voneinander elektrisch isoliert sind, lässt sich die Längsausdehnung der Kontaktleiste etwa um den Faktor 2 bei gleichbleibender Zahl von kontaktierten Leiterbahnen verringern im Vergleich zu einer Ausführung, bei der die Leiterbahnen 21 und 22 auf demselben Potential liegen würden und somit auch keine elektrische Isolierung der Kontaktelemente 3a und 3b voneinander vorgesehen ist. Um dennoch möglichst hohe Ströme (beispielsweise im Bereich von etwa 10 A) führen zu können, ohne dass durch die hohe Wärmeentwicklung an einer Kontaktstelle 23 zwischen einem Kontaktelement (z. B. 3a) und der entsprechenden Leiterbahn (z. B. 21) auf der Leiterplatte 11 eine Kaltverschweißung auftreten würde, sind die Kontaktelemente 3a und 3b solchermaßen ausgestaltet, dass sie jeweils zumindest mit zwei separaten Kontaktstellen mit der Leiterbahn 21 bzw. 22 auf der Leiterplatte 11 in elektrische Verbindung kommen. Dazu sind die Kontaktelemente 3a und 3b gemäß Figur 3 vorteilhafterweise wellenförmig im Bereich ihrer Kontaktstellen 23 ausgebildet. Durch diese wellenförmige Ausgestaltung ist ferner auch gewährleistet, dass sich die Kontaktelemente 3a,3b beispielsweise auch bei einer leicht geneigten Lage der Leiterplatte 11 flexibel den Leiterbahnen 21,22 anpassen können.FIG. 3 shows the contact elements 3a and 3b in a greatly enlarged view. Between the opposing contact elements 3a, 3b, the printed circuit board 11 (see Figure 2) is inserted. The printed circuit board 11 is provided with metallic conductor tracks 21 and 22, which each represent separate cable guides on the printed circuit board. Consequently, the tracks 21 and 22 are not necessarily at the same voltage potential and do not carry the same currents. When the circuit board 11 is inserted, there is an electrical contact between the contact element 3a and the conductor track 21 on the one hand and the contact element 3b and the conductor track 22 on the other. Since the interconnects 21, 22 represent separate current paths, the contact elements 3a and 3b must also be electrically insulated from one another. The fact that in each case two opposing contact elements 3a and 3b of the contact strip each contact different interconnects and are electrically insulated from each other, the longitudinal extent of the contact strip can be reduced by a factor of 2 with a constant number of contacted interconnects in comparison to an embodiment in which Conductor tracks 21 and 22 would be at the same potential and thus no electrical insulation of the contact elements 3a and 3b is provided from each other. However, in order to be able to carry the highest possible currents (for example in the range of approximately 10 A) without the high heat development at a contact point 23 between a contact element (eg 3a) and the corresponding conductor track (eg 21) the circuit board 11 would occur a cold welding, the contact elements 3a and 3b are configured such that they each with at least two separate contact points with the Conductor 21 and 22 come on the circuit board 11 in electrical connection. For this purpose, the contact elements 3a and 3b according to FIG. 3 are advantageously designed to be undulating in the region of their contact points 23. This wave-shaped configuration also ensures that the contact elements 3a, 3b can flexibly adapt to the printed conductors 21, 22, for example even in the case of a slightly inclined position of the printed circuit board 11.

Durch die Ausführung mit zumindest zwei getrennt voneinander liegenden Kontaktstellen 23 pro Kontaktelement 3a oder 3b lässt sich einerseits erreichen, dass pro Kontaktstelle 23 ungefähr nur die Hälfte des zwischen einer Leiterbahn 21 bzw. 22 und einem Kontaktelement 3a bzw. 3b fließenden Stromes geleitet werden muss und somit auch eine geringere Wärmeentwicklung an den Kontaktstellen 23 auftritt. Andererseits kann durch die jeweils getrennte Lage der Kontaktstellen 23 auch eine angemessene Wärmeabfuhr an die Umgebung jeder Kontaktstelle 23 erfolgen. Die Anzahl der Kontaktstellen 23 pro Kontaktelement 3a,3b kann beliebig erhöht werden, um die genannten Effekte weiter zu verbessern.By the embodiment with at least two separate contact points 23 per contact element 3a or 3b can be achieved on the one hand, that per contact point 23 approximately only half of the current flowing between a conductor 21 and 22 and a contact element 3a and 3b current must be passed and Thus, a lower heat development at the contact points 23 occurs. On the other hand, due to the respective separate position of the contact points 23, an adequate heat dissipation to the environment of each contact point 23 can take place. The number of contact points 23 per contact element 3a, 3b can be increased as desired in order to further improve the mentioned effects.

Um mit einer Ausführung mit jeweils elektrisch voneinander isolierten gegenüberliegenden Kontaktelementen 3a,3b auch bei relativ hohen Spannungen arbeiten zu können, muss der Abstand zwischen jeweils zwei beliebigen Punkten der Kontaktelemente 3a,3b zueinander möglichst groß gehalten werden, damit keine Spannungsüberschläge zwischen den Kontaktelementen 3a,3b auftreten können, wodurch sowohl die Kontaktelemente 3a,3b als auch ggf. mit den Leiterbahnen der Leiterplatte verbundene elektronischen Komponenten auf der Leiterplatte zerstört werden könnten. Um die sog. Kriechwege, also die Luftlinie zwischen zwei solchen beliebigen Punkten der Kontaktelemente 3a und 3b, weiter zu vergrößern, ist gemäß Figur 3 an dem Grundkörper 2 der Leiterplatte eine Ausnehmung 24 vorgesehen, in die die Leiterplatte 11 mit ihrem Ende 26 sozusagen ein kleines Stück weit eintaucht. Besonders vorteilhaft werden die Kriechwege dann verlängert, wenn diese Ausnehmung 24 auf einem auf dem Grundkörper angeordneten Steg 25 verläuft. In einem solchen Fall entstehen zwischen zwei beliebigen Punkten der Kontaktelemente 3a und 3b durch einen labyrinthartigen Aufbau möglichst lange Kriechstrecken.In order to work with a version with each electrically insulated opposite contact elements 3a, 3b even at relatively high voltages, the distance between any two points of the contact elements 3a, 3b to each other must be kept as large as possible, so that no flashovers between the contact elements 3a, 3b can occur, whereby both the contact elements 3a, 3b and possibly could be destroyed on the printed circuit board connected to the printed conductors of the printed circuit board electronic components. To the so-called. Creepage distances, so the air line between two such arbitrary points of the contact elements 3a and 3b, to further increase, according to Figure 3 on the base body 2 of the circuit board, a recess 24 is provided, into which the circuit board 11 with its end 26, so to speak, dips a small distance. Particularly advantageously, the creepage distances are extended when this recess 24 extends on a web 25 arranged on the base body. In such a case arise between any two points of the contact elements 3a and 3b by a labyrinthine structure as long as possible creepage distances.

Um ferner auch bei nicht eingeführter Leiterplatte 11 oder in dem Fall, dass die Leiterplatte 11 aus der Kontaktleiste herausgezogen wird, Spannungsüberschläge zwischen den einzelnen Kontaktelementen 3a und 3b zu verhindern, können diese in die durch Pfeile F1 und F2 angedeuteten Richtungen aufeinander zu jeweils so stark (mechanisch) vorgespannt sein, dass sich die Kontaktelemente 3a und 3b bei nicht eingeschobener bzw. gezogener Leiterplatte 11 durch den federnden Effekt soweit aufeinander zu bewegen, dass ein elektrischer Kontakt zwischen ihren Kontaktstellen 23 entsteht. Auf diese Weise kann beispielsweise auch eine Überwachung der Kontaktleiste dahingehend durchgeführt werden, ob eine Leiterplatte 11 eingeführt ist oder nicht. Dazu muss nämlich nur eine Einrichtung zur Kurzschlussüberwachung zwischen den Kontaktelementen 3a und 3b vorgesehen werden, die ein Signal abgibt, wenn ein Kurzschluss zwischen den Kontaktelementen 3a und 3b besteht.Furthermore, in order to prevent voltage flashovers between the individual contact elements 3a and 3b even when the printed circuit board 11 is not inserted or in the event that the printed circuit board 11 is pulled out of the contact strip, these can move toward each other in the directions indicated by arrows F1 and F2 be (mechanically) biased that the contact elements 3a and 3b move at not pushed or pulled circuit board 11 by the resilient effect to each other so far that an electrical contact between their contact points 23 is formed. In this way, for example, a monitoring of the contact strip can be carried out to see whether a circuit board 11 is inserted or not. For this purpose, only a device for short circuit monitoring between the contact elements 3a and 3b must be provided, which emits a signal when there is a short circuit between the contact elements 3a and 3b.

Ferner lässt sich in Figur 3 gut erkennen, dass die Leiterbahnen 21 und 22 ein Stück weit vom Ende 26 der Leiterplatte zurückgesetzt sind, um den für diese Ausführung hinsichtlich der Spannungsfestigkeit der Anordnung notwendigen Kriechweg weiter zu verlängern.Furthermore, it can be clearly seen in FIG. 3 that the conductor tracks 21 and 22 are set back a little way from the end 26 of the printed circuit board, in order to further extend the creeping path necessary for this embodiment with regard to the dielectric strength of the arrangement.

Figur 4 zeigt eine mögliche Ausführungsform eines Kontaktelementes. Beispielhaft ist hier das Kontaktelement 3b (vgl. Figur 3) dargestellt. Neben einer Seitenansicht A ist eine Vorderansicht B des Kontaktelementes 3b gezeigt. Man erkennt deutlich, dass das Kontaktelement 3b zwischen zwei Seitenarmen 31 und 32 einen Schlitz 33 aufweist, sozusagen also einmal geschlitzt ist. Durch diese Ausführung können sich die einzelnen Kontaktelemente (z. B. 3b) noch flexibler auch an eine leicht schräg oder verkantet in die Kontaktleiste eingeführte Leiterplatte anpassen.FIG. 4 shows a possible embodiment of a contact element. By way of example, the contact element 3b (see FIG. In addition to a side view A, a front view B of the contact element 3b is shown. It can be seen clearly that the contact element 3b between two side arms 31 and 32 has a slot 33, so it is so slotted once. As a result of this embodiment, the individual contact elements (eg 3b) can be adapted even more flexibly to a printed circuit board that is slightly inclined or tilted into the contact strip.

Ferner werden die einzelnen Kontaktstellen 23 durch eine geschlitzte Ausführung in zumindest zwei Kontaktstellenpaare 23a und 23b pro Kontaktstelle 23 aufgeteilt, die durch den Schlitz 33 voneinander getrennt sind. Auf diese Weise kann eine weiter verbesserte Wärmeabfuhr pro Kontaktstelle 23a bzw. 23b erreicht werden.Furthermore, the individual contact points 23 are divided by a slotted design into at least two pairs of contact points 23a and 23b per contact point 23, which are separated from each other by the slot 33. In this way, a further improved heat dissipation per contact point 23a or 23b can be achieved.

Figur 5 zeigt schließlich eine Draufsicht auf eine Kontaktleiste 1, bei der wiederum gleiche Komponenten durch die gleichen Bezugszahlen wie in den vorigen Abbildungen gekennzeichnet sind. Anhand von Figur 5 soll eine weitere mögliche Ausführungsform der elektrischen Anschlüsse 5 gezeigt werden. Neben der in Figur 2 erläuterten doppel- bzw. mehrstöckigen Ausführungsform lässt sich nämlich auch nur eine Anschlussebene pro Kontaktleiste 1 verwenden, bei der jeweils die elektrischen Anschlüsse, z. B. 41 und 42, benachbarter Kontaktelemente, z. B. 43 und 44, jeweils innerhalb derselben Ebene versetzt zueinander angeordnet sind. Auch durch diese Ausführungsform lässt sich der benötigte Abstand zwischen zwei jeweils benachbart liegenden elektrischen Anschlüssen beispielsweise 41 und 42, erreichen, so dass die geforderte Spannungsfestigkeit gegeben ist.Finally, FIG. 5 shows a plan view of a contact strip 1, in which in turn identical components are identified by the same reference numbers as in the preceding figures. A further possible embodiment of the electrical connections 5 will be shown with reference to FIG. In addition to the explained in Figure 2 double or multi-level embodiment, namely, only one connection level per contact strip 1 can be used, in each case the electrical connections, for. B. 41 and 42, adjacent contact elements, for. B. 43 and 44, each offset within the same plane to each other. Also by this embodiment, the required distance between two respectively adjacent lying electrical terminals, for example, 41 and 42, reach, so that the required dielectric strength is given.

Kontaktleisten der beschriebenen Art können beispielsweise in elektrischen Geräten, wie z. B. elektrischen Schutz- oder Leitgeräten, eingesetzt werden, wo sie aufgrund ihrer relativ stabil gehaltenen Ausführungsform leicht mit einem Gehäuse des entsprechenden elektrischen Gerätes verbunden werden können. Leiterplatten mit entsprechenden Schaltkreisen können jeweils in eine solche Kontaktleiste eingeschoben werden. Auf diese Weise kann ein solches elektrisches Gerät sehr flexibel mit Leiterplatten bestückt werden. Durch die erläuterte Ausführungsform, insbesondere mit den sich jeweils gegenüberliegenden elektrisch isolierten Kontaktelementen, lässt sich die Längsausdehnung einer solchen Kontaktleiste deutlich reduzieren bei gleichbleibender Anzahl von kontaktierten Leiterbahnen auf der Leiterplatte. Dies ist besonders wichtig, da bei den genannten elektrischen Geräten häufig Beschränkungen in der Raumausdehnung, insbesondere in Breite und Höhe der elektrischen Geräte, vorgegeben sind.Contact strips of the type described can, for example, in electrical equipment, such. As electrical protection or control devices are used, where they can be easily connected due to their relatively stable embodiment held with a housing of the corresponding electrical device. Circuit boards with corresponding circuits can each be inserted in such a contact strip. In this way, such an electrical device can be very flexibly equipped with printed circuit boards. Due to the illustrated embodiment, in particular with the respectively opposite electrically insulated contact elements, the longitudinal extent of such a contact strip can be significantly reduced with a constant number of contacted tracks on the circuit board. This is particularly important since in the mentioned electrical devices, restrictions in the spatial extent, in particular in the width and height of the electrical devices, are often given.

Claims (7)

  1. Contact strip (1) for making electrical contact with metal conductor tracks (21, 22) running on both sides of a printed circuit board (11), the contact strip (1)
    - having a base body (2) having resilient contact elements (3, 3a, 3b, 3c), which are arranged opposite in the longitudinal direction of the base body (2) such that one narrow side of the printed circuit board (11) can be inserted between the mutually opposing contact elements (3, 3a, 3b, 3c) for the purpose of producing an electrical contact between the conductor tracks (21, 22) of said printed circuit board (11) and the contact elements (3, 3a, 3b, 3c),
    - in each case mutually opposing contact elements (3a, 3b) being electrically insulated from one another within the base body (2), and
    - each contact element (3, 3a, 3b, 3c) has at least two successive contact points (23) along the insertion direction of the printed circuit board (11) for the purpose of making electrical contact with a conductor track (21, 22) of the printed circuit board (11),
    characterized in that
    - the base body (1) has a web (25), which is raised in the longitudinal direction of the base body between the mutually opposing contact elements (3, 3a, 3b, 3c) and in which a cutout (24) is provided which runs between the mutually opposing contact elements (3, 3a, 3b, 3c) and partially surrounds the narrow side of the printed circuit board (11) when said printed circuit board (11) is inserted.
  2. Contact strip (1) according to Claim 1,
    characterized in that
    - the contact elements (3, 3a, 3b, 3c) have an undulating form in the region of their contact points (23).
  3. Contact strip (1) according to Claim 1 or 2,
    characterized in that
    - the contact elements (3, 3a, 3b, 3c) are slotted at least once in their longitudinal direction in the region of their contact points (23).
  4. Contact strip (1) according to one of the preceding claims,
    characterized in that
    - the contact elements (3, 3a, 3b, 3c) are prestressed in the direction of the respectively opposing contact elements such that, when there is no printed circuit board (11), an electrical contact is produced between such contact elements.
  5. Contact strip (1) according to one of the preceding claims,
    characterized in that
    - the contact elements (3, 3a, 3b, 3c) are connected to in each case one electrical feed line (12) using connections (41, 42) arranged in one plane on the base body (2), in each case the connections (41, 42) of adjacent contact elements (43 44) being arranged such that they are offset with respect to one another in the plane.
  6. Contact strip (1) according to one of Claims 1 to 4,
    characterized in that
    - the contact elements (3, 3a, 3b, 3c) are connected to in each case one electrical feed line (12) using connections (5, 5a, 5b, 5c) arranged in at least two planes on the base body (2), in each case the connections (5a, 5c) of adjacent contact elements (3a, 3c) being arranged on different planes.
  7. Contact strip (1) according to either of Claims 5 and 6,
    characterized in that
    - the connections (5, 5a, 5b, 5c) are provided with clamping screws (13) for the purpose of fixing electrical lines to be connected to the respective connections (5, 5a, 5b, 5c).
EP04726435A 2003-05-14 2004-04-08 Multipoint plug for electrically connecting metal strip conductors arranged on both sides of a circuit board Expired - Fee Related EP1623484B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003122172 DE10322172B4 (en) 2003-05-14 2003-05-14 Contact strip for electrical contacting of both sides of a printed circuit board running metallic tracks
PCT/DE2004/000796 WO2004105192A1 (en) 2003-05-14 2004-04-08 Multipoint plug for electrically connecting metal strip conductors arranged on both sides of a circuit board

Publications (2)

Publication Number Publication Date
EP1623484A1 EP1623484A1 (en) 2006-02-08
EP1623484B1 true EP1623484B1 (en) 2007-10-03

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CN (1) CN100477390C (en)
DE (2) DE10322172B4 (en)
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Also Published As

Publication number Publication date
HK1089565A1 (en) 2006-12-01
DE10322172A1 (en) 2004-12-23
EP1623484A1 (en) 2006-02-08
WO2004105192A1 (en) 2004-12-02
CN100477390C (en) 2009-04-08
CN1781217A (en) 2006-05-31
DE502004005141D1 (en) 2007-11-15
DE10322172B4 (en) 2006-06-14

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