EP1950840B1 - Terminal element - Google Patents

Terminal element Download PDF

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Publication number
EP1950840B1
EP1950840B1 EP08000768A EP08000768A EP1950840B1 EP 1950840 B1 EP1950840 B1 EP 1950840B1 EP 08000768 A EP08000768 A EP 08000768A EP 08000768 A EP08000768 A EP 08000768A EP 1950840 B1 EP1950840 B1 EP 1950840B1
Authority
EP
European Patent Office
Prior art keywords
contact element
contact
abutment
screw
fastening
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.)
Not-in-force
Application number
EP08000768A
Other languages
German (de)
French (fr)
Other versions
EP1950840A3 (en
EP1950840A2 (en
Inventor
Klaus Bäuerle
Frank Walter
Hermann Stadler
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.)
MC Technology GmbH
Original Assignee
MC Technology GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MC Technology GmbH filed Critical MC Technology GmbH
Publication of EP1950840A2 publication Critical patent/EP1950840A2/en
Publication of EP1950840A3 publication Critical patent/EP1950840A3/en
Application granted granted Critical
Publication of EP1950840B1 publication Critical patent/EP1950840B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • 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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0263—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for positioning or holding parts during soldering or welding process
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/94—Electrical connectors including provision for mechanical lifting or manipulation, e.g. for vacuum lifting

Definitions

  • the invention relates to a contact element for printed circuit board terminals.
  • contact elements for printed circuit board terminals which have a clamping body, in which an input opening for insertion of a conductor and a screw for clamping attachment of the conductor is arranged in the clamping body. If such contact elements transported, there is a problem in that the screw is not secured in the clamp body and can be solved during transport, so there is a risk of loss of the screw.
  • From the DE 24 16 231 is an electrical terminal for connecting electrical conductors to a zero or earth potential-carrying busbar with a clamping body, which has an input opening for insertion of a conductor and a screw for clamping attachment of the conductor in the clamping body known.
  • the clamping body having an input opening for insertion of a conductor and a screw for clamping attachment of the conductor in the clamp body, which is provided with an additional piece having a designation area provides a backup of the screw causes a guide for a screwdriver allows and / or causes a tolerance compensation of juxtaposed, metallic clamping bodies.
  • the object of the invention is therefore to develop a contact element for printed circuit board terminals such that a backup for the screw is provided and that the processing of the contact element is simplified.
  • a contact element for releasable attachment to the contact element has a contact surface and a fastening element for releasable attachment to the contact element. Due to the releasable attachment, it is possible to first attach the contact element after production of the contact element to the contact element and then to transport it. If the contact element has arrived at the position at which it is to be processed, the contact element can be released again.
  • the contact surface of the abutment element is larger than the cross-sectional area of the clamp body in order to provide a sufficiently large attack surface for automation devices, in particular for suction pads or the like, so that the contact elements can be moved with conventional automation devices.
  • Such a running contact surface is ideal for suction gripper, since it facilitates the formation of the necessary vacuum for the gripping process, since no air can flow through a closed, hole-free contact surface and a flat surface facilitates the application of the seal of a suction pad.
  • the fastening element of the contact element for releasable attachment to the screw head of the screw of the contact element is suitable.
  • the contact elements are usually designed such that the contacts, which must be arranged on a printed circuit board, are arranged on one side of the clamping body of the contact element, while the screw on the opposite side of the contacts of the clamping body protrudes from the clamping body. If the fastener attached to the screw head, can the contact elements are gripped from above and in particular be arranged with the aid of the contact element on the corresponding positions of the circuit board, so that during the entire transport and processing of the contact element, the contact element can be arranged on the contact element and is removed only after correct positioning. Furthermore, the contact element represents a loss protection for the screw.
  • the fastening element preferably has a latching element, a clamping element and / or a positive-locking element, so that the contact element via the fastening element as simple as possible, but can be reliably arranged on the contact element.
  • the fastening element is designed as a ring or at least one, preferably two ring segments, which can lie in particular around the screw head in the screw of the contact element. This ensures that the screw rests substantially non-rotatably in the fastening element of the contact element.
  • a side wing is arranged on the contact element in such a way that, in the state of the contact element fastened to the contact element, it bears against the contact element such that it forms an anti-twist device. This ensures that during transport of the contact element, the screw can not fall out of the clamping body and it is particularly secured against rotation, provided that it is arranged against rotation in the contact element.
  • two side wings are arranged on the contact element in such a way that they rest on the contact element in the state of the contact element fastened to the contact element such that the contact element is releasably clamped.
  • preferably correspondingly formed fastening elements can simultaneously fulfill the function of anti-rotation.
  • the contact surface is formed substantially rectangular and has a recess on a corner. This recess serves to be able to orient the contact elements in a conveyor belt of a pick and place machine or any other automation device always in the same direction.
  • the contact element according to the invention for printed circuit board terminals has a contact element, whereby the contact element can be handled in automation devices, since they can act on the contact surface of the contact element. In addition, it is ensured that the screw can not accidentally unscrew from the clamp body.
  • the clamping body has a wire protection which prevents the screw from damaging the conductor inserted into the clamping body.
  • At least one Lötpin or an SMD surface is arranged on the clamp body in order to attach the contact element to a circuit board can.
  • SMD Surface Mounted Device
  • the contact element is designed as a single terminal, since it is precisely for such contact elements, the need to handle these items easily.
  • FIG. 1 and 2 two perspective views of a first embodiment of the invention are shown, wherein on a contact element 20, a contact element 10 is releasably attached.
  • the contact element 20 has a clamping body 22 with an upper side 22a, a lower side 22b and a front side 22c.
  • the clamping body 22 is formed substantially cuboid.
  • an inlet opening 23 is arranged, through which a not shown electrical conductor can be inserted into the clamping body 22.
  • a screw 25 is screwed into the clamp body 22, with the aid of which the electrical conductor inserted into the clamp body 22 through the input opening 23 can be clamped in the clamp body 22.
  • the screw 25 usually has a screw head 26.
  • two soldering pins 27 are arranged, by means of which the contact element 20 can be electrically conductively connected to a printed circuit board.
  • a wire guard 24 is arranged, which extends from the upper side 22a of the clamp body 22 through the inlet opening 23 into the clamp body 22 and thus comes to rest between the screw 25 and the introduced through the inlet opening 23 in the clamp body 22 so that it prevents the conductor from being damaged by screwing in the screw 25.
  • the arranged on the contact element 20 contact element 10 has a substantially rectangular contact surface 12, which has a recess 13 at a corner.
  • the contact surface 12 is unbroken, so has no holes within the edge of the surface. Furthermore, the contact surface is flat.
  • the contact surface 12 in this case has an area which is greater than the cross-sectional area through the clamping body 22, wherein the cross-sectional area as a surface of a section perpendicular to the longitudinal axis of the screw 25 outside the region of the inlet opening 23, in particular as the surface of the top 22a or the bottom 22b results.
  • the contact surface 12 essentially completely covers the contact element 20.
  • the surface of the contact surface 12 is larger than the projected base of the clamping body 22 of the contact element 20. This ensures that the contact surface 12 an automation device can attack, for example with a suction pad and the contact element 20 can thus be handled in a simple manner in an automation device ,
  • the contact element 10 is detachably fastened to the contact element 20 via a fastening element 14, wherein the attachment should be so stable that even when gripping only the contact element 10 by an automation device, the downwardly hanging contact element 20 should not be able to be released by its own weight.
  • the fastening element 14 has two ring segments 15, which positively surround the screw head 26 of the screw 25 or which latch onto the screw head 26 of the screw 25. It should be ensured that the screw head 26 in the fastener 14 can not be rotated easily.
  • a side wing 18 is arranged substantially perpendicular to the contact surface 12, wherein it is arranged on the same side of the contact surface 12 as the fastening element 14 and thus in the attached to the contact element 20 state of the contact element 10 in the direction of the contact element 20 has.
  • the side wing 18 is designed such that it rests in the patch on the contact element 20 state of the contact element 10 on the contact element 20 such that the contact element 10 can not be against the contact element 20, for example, about the longitudinal axis of the screw 25, rotated.
  • the side wing 18 abuts directly on a side surface of the clamping body 22.
  • Especially more than one side wing 18 can be arranged on the contact element 10.
  • the screw 25 With the help of the contact element 10 is thus on the one hand ensures that the screw 25 is arranged captive on the contact element 20.
  • the screw 25 can not be rotated in the clamp body 22, so that they can neither turn out nor into the clamp body 22 and thus after mounting the contact element 20 without further manipulation directly the corresponding conductor can be connected to the contact element 20 ,
  • FIG. 3 is the embodiment consisting of the contact element 20 and the contact element 10 according to FIG. 1 in a shown in a conveyor belt 30 of an automation device, such as a pick and place machine, used.
  • the conveyor belt 30 is substantially U-shaped, so that the contact element 20 can be suspended from above in the conveyor belt 30 and engages with the short sides of the substantially rectangular contact surface 12 of the contact element 10 in recesses 31, 32 of the conveyor belt.
  • the recess 31 is slightly narrower than the recess 32, so that the contact element 10, which has the recess 13 in the contact surface 12 only on one side, can be inserted into the conveyor belt 30 in a clear orientation. In this way, it is ensured that the contact elements 20 are all transported in the same orientation in the conveyor belt 30.
  • FIG. 4 another embodiment of the invention is shown.
  • the contact element 20 is substantially identical to the contact element 20 of the first embodiment, wherein like parts are designated by like reference numerals.
  • the contact element 10 substantially corresponds the contact element 10 according to the first embodiment, so that like parts are designated by like reference numerals.
  • the contact element 10 according to the second exemplary embodiment differs from the contact element 10 according to the first exemplary embodiment in the design of the fastening element 14.
  • this fastening element 14 is formed from a plurality of spring elements 16 which rest on the outer circumference of the screw head 26 of the screw 25.
  • FIG. 5 shows, finally, a third embodiment of the invention, wherein the contact element 10 substantially the contact element 10 of the second embodiment according to FIG. 4 equivalent.
  • the contact element 20 essentially corresponds to the contact element 20 according to the second exemplary embodiment in FIG FIG. 4 , so that like parts are designated by like reference numerals.
  • the contact element 20 of the third embodiment differs from the contact elements 20 of the first and second embodiments in that no soldering pins 27 are arranged on the underside 22b, but that the underside 22b is formed as an SMD surface 28.

Abstract

The contact element (20) has a clamping body (22). An installation element (10) with an installation surface (12) and fixing element (14) is detachably fixed at the contact element, which has an inlet opening (23) for introducing a conductor and a screw (25) to the clamped fixing of the conductor in the clamping body. The installation surface has larger cross-section surface than the clamping body.

Description

Die Erfindung betrifft ein Kontaktelement für Leiterplattenklemmen.The invention relates to a contact element for printed circuit board terminals.

Bekannt sind Kontaktelemente für Leiterplattenklemmen, welche einen Klemmkörper aufweisen, in welchem eine Eingangsöffnung zum Einführen eines Leiters und eine Schraube zur klemmenden Befestigung des Leiters in dem Klemmkörper angeordnet ist. Werden derartige Kontaktelemente transportiert, besteht ein Problem darin, dass die Schraube in dem Klemmkörper nicht gesichert ist und sich beim Transport lösen kann, so dass die Gefahr des Verlustes der Schraube besteht.Known are contact elements for printed circuit board terminals, which have a clamping body, in which an input opening for insertion of a conductor and a screw for clamping attachment of the conductor is arranged in the clamping body. If such contact elements transported, there is a problem in that the screw is not secured in the clamp body and can be solved during transport, so there is a risk of loss of the screw.

Weiterhin werden derartige Kontaktelemente von Hand einigesetzt, da die Form der Einzelklemme mit der nach oben herausragenden Schraube sehr unhandlich ist, so dass für eine automatisierte Verarbeitung sehr aufwändige Spezialmaschinen von Nöten wären.Furthermore, such contact elements are used by hand, since the shape of the single clamp with the upwardly projecting screw is very unwieldy, so that for an automated processing very complex special machines would be needed.

Aus der DE 24 16 231 ist eine elektrische Anschlussklemme zum Anschluss elektrischer Leiter an eine Null- oder Erdpotential führende Stromschiene mit einem Klemmkörper, welcher eine Eingangsöffnung zum Einführen eines Leiters und eine Schraube zur klemmenden Befestigung des Leiters in dem Klemmkörper aufweist, bekannt.From the DE 24 16 231 is an electrical terminal for connecting electrical conductors to a zero or earth potential-carrying busbar with a clamping body, which has an input opening for insertion of a conductor and a screw for clamping attachment of the conductor in the clamping body known.

Aus der DE 24 02 087 ist eine blanke Anreihklemme für Nulloder Schutzleiteranschlüsse bekannt, deren Klemmkörper eine Eingangsöffnung zum Einführen eines Leiters und eine Schraube zur klemmenden Befestigung des Leiters in dem Klemmkörper aufweist, die mit einem Zusatzstück versehen ist, das eine Bezeichnungsfläche bereitstellt, eine Sicherung der Schraube bewirkt, eine Führung für einen Schraubendreher ermöglicht und/oder einen Toleranzausgleich von nebeneinandersitzenden, metallischen Klemmkörpern bewirkt.From the DE 24 02 087 a bare terminal for Nulloder protective conductor terminals is known, the clamping body having an input opening for insertion of a conductor and a screw for clamping attachment of the conductor in the clamp body, which is provided with an additional piece having a designation area provides a backup of the screw causes a guide for a screwdriver allows and / or causes a tolerance compensation of juxtaposed, metallic clamping bodies.

Aus der DE 92 17 684 ist die Anregung zu entnehmen, Klemmen gemäß der beiden vorstehend genannten Schutzrechte als Leiterplattenklemmen einzusetzen.From the DE 92 17 684 The suggestion is to use terminals in accordance with the two aforementioned protective rights as PCB terminals.

Die Aufgabe der Erfindung besteht daher darin, ein Kontaktelement für Leiterplattenklemmen derart weiterzubilden, dass eine Sicherung für die Schraube bereitgestellt wird und dass die Verarbeitung des Kontaktelements vereinfacht wird.The object of the invention is therefore to develop a contact element for printed circuit board terminals such that a backup for the screw is provided and that the processing of the contact element is simplified.

Die Aufgabe wird erfindungsgemäß gelöst durch ein Kontaktelement für Leiterplattenklemmen mit den Merkmalen des Patentanspruchs 1.The object is achieved by a contact element for PCB terminals with the features of claim 1.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments and further developments of the invention are specified in the subclaims.

Erfindungsgemäß ist ein Anlageelement zur lösbaren Befestigung an dem Kontaktelement vorgesehen. Das Anlageelement weist eine Anlagefläche und ein Befestigungselement zur lösbaren Befestigung an dem Kontaktelement auf. Durch die lösbare Befestigung ist es möglich, das Anlageelement nach Herstellung des Kontaktelements zunächst an dem Kontaktelement zu befestigen und dieses dann zu transportieren. Ist das Kontaktelement an der Position angelangt, an der es verarbeitet werden soll, kann das Anlageelement wieder gelöst werden. Die Anlagefläche des Anlageelements ist dabei größer als die Querschnittsfläche des Klemmkörpers, um eine ausreichend große Angriffsfläche für Automatisierungsvorrichtungen, insbesondere für Sauggreifer oder ähnliches, zu bieten, so dass die Kontaktelemente mit üblichen Automatisierungsvorrichtungen bewegt werden können.According to the invention a contact element for releasable attachment to the contact element is provided. The contact element has a contact surface and a fastening element for releasable attachment to the contact element. Due to the releasable attachment, it is possible to first attach the contact element after production of the contact element to the contact element and then to transport it. If the contact element has arrived at the position at which it is to be processed, the contact element can be released again. The contact surface of the abutment element is larger than the cross-sectional area of the clamp body in order to provide a sufficiently large attack surface for automation devices, in particular for suction pads or the like, so that the contact elements can be moved with conventional automation devices.

Es hat sich als besonders vorteilhaft erwiesen, die Anlagefläche eben und undurchbrochen zu gestalten. Eine so ausgeführte Anlagefläche ist für Sauggreifer ideal, da sie die Ausbildung des für den Greifprozess notwendigen Vakuums erleichtert, da durch eine geschlossene, lochfreie Anlagefläche keine Luft nachströmen kann und eine ebene Fläche das Anlegen der Dichtung eines Sauggreifers erleichtert.It has proved to be particularly advantageous to make the contact surface flat and unbroken. Such a running contact surface is ideal for suction gripper, since it facilitates the formation of the necessary vacuum for the gripping process, since no air can flow through a closed, hole-free contact surface and a flat surface facilitates the application of the seal of a suction pad.

Bei der Erfindung ist das Befestigungselement des Anlageelements zur lösbaren Befestigung an dem Schraubenkopf der Schraube des Kontaktelements geeignet. Die Kontaktelemente sind in der Regel derart ausgebildet, dass die Kontakte, welche auf einer Leiterplatte angeordnet werden müssen, auf einer Seite des Klemmkörpers des Kontaktelements angeordnet sind, während die Schraube auf der den Kontakten gegenüberliegenden Seite des Klemmkörpers aus dem Klemmkörper herausragt. Wird das Befestigungselement an dem Schraubenkopf befestigt, können die Kontaktelemente von oben gegriffen werden und insbesondere mit Hilfe des Anlageelements auf den entsprechenden Positionen der Leiterplatte angeordnet werden, so dass bei dem gesamten Transport und Verarbeitungsprozess des Kontaktelements das Anlageelement an dem Kontaktelement angeordnet sein kann und erst nach korrekter Positionierung entfernt wird. Weiterhin stellt das Anlageelement einen Verlierschutz für die Schraube dar.In the invention, the fastening element of the contact element for releasable attachment to the screw head of the screw of the contact element is suitable. The contact elements are usually designed such that the contacts, which must be arranged on a printed circuit board, are arranged on one side of the clamping body of the contact element, while the screw on the opposite side of the contacts of the clamping body protrudes from the clamping body. If the fastener attached to the screw head, can the contact elements are gripped from above and in particular be arranged with the aid of the contact element on the corresponding positions of the circuit board, so that during the entire transport and processing of the contact element, the contact element can be arranged on the contact element and is removed only after correct positioning. Furthermore, the contact element represents a loss protection for the screw.

Das Befestigungselement weist vorzugsweise ein Rastelement, ein Klemmelement und/oder ein einen Formschluss erzielendes Element auf, so dass das Anlageelement über das Befestigungselement möglichst einfach, aber zuverlässig an dem Kontaktelement angeordnet werden kann.The fastening element preferably has a latching element, a clamping element and / or a positive-locking element, so that the contact element via the fastening element as simple as possible, but can be reliably arranged on the contact element.

Besonders bevorzugt ist das Befestigungselement als Ring oder wenigstens ein, vorzugsweise zwei Ringsegmente ausgebildet, welche sich insbesondere um den Schraubenkopf in der Schraube des Kontaktelements legen können. Dadurch wird gewährleistet, dass die Schraube im Wesentlichen verdrehsicher in dem Befestigungselement des Anlageelements anliegt.Particularly preferably, the fastening element is designed as a ring or at least one, preferably two ring segments, which can lie in particular around the screw head in the screw of the contact element. This ensures that the screw rests substantially non-rotatably in the fastening element of the contact element.

Bei einer besonders bevorzugten Ausführungsform der Erfindung ist an dem Anlageelement ein Seitenflügel derart angeordnet, dass er im an dem Kontaktelement befestigten Zustand des Anlageelements derart an dem Kontaktelement anliegt, dass er eine Verdrehsicherung bildet. Dadurch wird gewährleistet, dass beim Transport des Kontaktelements die Schraube nicht aus dem Klemmkörper herausfallen kann und sie insbesondere gegen Verdrehung gesichert ist, sofern sie in dem Anlageelement verdrehsicher angeordnet ist.In a particularly preferred embodiment of the invention, a side wing is arranged on the contact element in such a way that, in the state of the contact element fastened to the contact element, it bears against the contact element such that it forms an anti-twist device. This ensures that during transport of the contact element, the screw can not fall out of the clamping body and it is particularly secured against rotation, provided that it is arranged against rotation in the contact element.

Vorzugsweise sind an dem Anlageelement zwei Seitenflügel derart angeordnet, dass diese im an dem Kontaktelement befestigten Zustand des Anlageelements derart an dem Kontaktelement anliegen, dass das Kontaktelement lösbar geklemmt ist. Dadurch können die Seitenflügel sowohl die Verdrehsicherung ermöglichen als auch gleichzeitig die Funktion des Befestigungselements übernehmen. Insbesondere können vorzugsweise entsprechend ausgebildete Befestigungselemente gleichzeitig auch die Funktion der Verdrehsicherung erfüllen.Preferably, two side wings are arranged on the contact element in such a way that they rest on the contact element in the state of the contact element fastened to the contact element such that the contact element is releasably clamped. This allows the side wings both allow the rotation and at the same time take over the function of the fastener. In particular, preferably correspondingly formed fastening elements can simultaneously fulfill the function of anti-rotation.

Vorzugsweise ist die Anlagefläche im Wesentlichen rechteckig ausgebildet und weist an einer Ecke eine Aussparung auf. Diese Aussparung dient dazu, die Anlageelemente in einem Transportband eines Bestückungsautomaten oder einer sonstigen Automatisierungsvorrichtung immer in derselben Richtung orientieren zu können.Preferably, the contact surface is formed substantially rectangular and has a recess on a corner. This recess serves to be able to orient the contact elements in a conveyor belt of a pick and place machine or any other automation device always in the same direction.

Das erfindungsgemäße Kontaktelement für Leiterplattenklemmen weist ein Anlageelement auf, wodurch das Kontaktelement in Automatisierungsvorrichtungen gehandhabt werden kann, da diese an der Anlagefläche des Anlageelements angreifen können. Zudem ist gewährleistet, dass die Schraube sich nicht versehentlich aus dem Klemmkörper herausdrehen kann.The contact element according to the invention for printed circuit board terminals has a contact element, whereby the contact element can be handled in automation devices, since they can act on the contact surface of the contact element. In addition, it is ensured that the screw can not accidentally unscrew from the clamp body.

Vorzugsweise weist der Klemmkörper einen Drahtschutz auf, welcher verhindert, dass die Schraube den in den Klemmkörper eingeführten Leiter beschädigt.Preferably, the clamping body has a wire protection which prevents the screw from damaging the conductor inserted into the clamping body.

Vorzugsweise ist an dem Klemmkörper wenigstens ein Lötpin oder eine SMD-Fläche ( SMD = Surface Mounted Device) angeordnet, um das Kontaktelement an einer Leiterplatte befestigen zu können.Preferably, at least one Lötpin or an SMD surface (SMD = Surface Mounted Device) is arranged on the clamp body in order to attach the contact element to a circuit board can.

Besonders bevorzugt ist das Kontaktelement als Einzelklemme ausgebildet, da gerade für derartige Kontaktelemente die Notwendigkeit besteht, diese Einzelteile leicht handhaben zu können.Particularly preferably, the contact element is designed as a single terminal, since it is precisely for such contact elements, the need to handle these items easily.

Die Erfindung wird anhand der folgenden Figuren ausführlich erläutert. Es zeigt:

Figur 1
eine perspektivische Darstellung eines ersten Ausführungsbeispiels der Erfindung,
Figur 2
eine weitere perspektivische Darstellung des Ausführungsbeispiels gemäß Figur 1,
Figur 3
eine perspektivische Darstellung der Anordnung des Ausführungsbeispiels gemäß Figur 1 in einem Transportband einer Automatisierungsvorrichtung,
Figur 4
eine perspektivische Darstellung eines zweiten Ausführungsbeispiels der Erfindung und
Figur 5
eine perspektivische Darstellung eines dritten Ausführungsbeispiels der Erfindung.
The invention will be explained in detail with reference to the following figures. It shows:
FIG. 1
a perspective view of a first embodiment of the invention,
FIG. 2
a further perspective view of the embodiment according to FIG. 1 .
FIG. 3
a perspective view of the arrangement of the embodiment according to FIG. 1 in a conveyor belt of an automation device,
FIG. 4
a perspective view of a second embodiment of the invention and
FIG. 5
a perspective view of a third embodiment of the invention.

In den Figuren 1 und 2 sind zwei perspektivische Darstellungen eines ersten Ausführungsbeispiels der Erfindung dargestellt, wobei an einem Kontaktelement 20 ein Anlageelement 10 lösbar befestigt ist. Das Kontaktelement 20 weist einen Klemmkörper 22 mit einer Oberseite 22a, einer Unterseite 22b und einer Vorderseite 22c auf. Der Klemmkörper 22 ist dabei im Wesentlichen quaderförmig ausgebildet. In der Vorderseite 22c ist eine Eingangsöffnung 23 angeordnet, durch welche ein nicht dargestellter elektrischer Leiter in den Klemmkörper 22 eingeführt werden kann. Von der Oberseite 22a des Klemmkörpers 22 her ist eine Schraube 25 in den Klemmkörper 22 eingedreht, mit Hilfe welcher der durch die Eingangsöffnung 23 in den Klemmkörper 22 eingeführte elektrische Leiter in dem Klemmkörper 22 festgeklemmt werden kann. Die Schraube 25 weist dabei üblicherweise einen Schraubenkopf 26 auf.In the Figures 1 and 2 two perspective views of a first embodiment of the invention are shown, wherein on a contact element 20, a contact element 10 is releasably attached. The contact element 20 has a clamping body 22 with an upper side 22a, a lower side 22b and a front side 22c. The clamping body 22 is formed substantially cuboid. In the front side 22 c, an inlet opening 23 is arranged, through which a not shown electrical conductor can be inserted into the clamping body 22. From the upper side 22a of the clamp body 22, a screw 25 is screwed into the clamp body 22, with the aid of which the electrical conductor inserted into the clamp body 22 through the input opening 23 can be clamped in the clamp body 22. The screw 25 usually has a screw head 26.

An der Unterseite 22b des Klemmkörpers 22 sind zwei Lötpins 27 angeordnet, mit Hilfe welcher das Kontaktelement 20 auf einer Leiterplatte elektrisch leitend verbunden werden kann.On the underside 22b of the clamping body 22, two soldering pins 27 are arranged, by means of which the contact element 20 can be electrically conductively connected to a printed circuit board.

In dem Klemmkörper 22 ist ein Drahtschutz 24 angeordnet, welcher sich von der Oberseite 22a des Klemmkörpers 22 durch die Eingangsöffnung 23 in den Klemmkörper 22 hinein erstreckt und somit zwischen der Schraube 25 und dem durch die Eingangsöffnung 23 in den Klemmkörper 22 eingeführten Leiter zu liegen kommt, so dass dieser verhindert, dass der Leiter durch das Eindrehen der Schraube 25 beschädigt wird.In the clamp body 22, a wire guard 24 is arranged, which extends from the upper side 22a of the clamp body 22 through the inlet opening 23 into the clamp body 22 and thus comes to rest between the screw 25 and the introduced through the inlet opening 23 in the clamp body 22 so that it prevents the conductor from being damaged by screwing in the screw 25.

Das an dem Kontaktelement 20 angeordnete Anlageelement 10 weist eine im Wesentlichen rechteckige Anlagefläche 12 auf, welche an einer Ecke eine Ausnehmung 13 hat. Die Anlagefläche 12 ist undurchbrochen, weist also keine Löcher innerhalb des Randes der Fläche auf. Weiterhin ist die Anlagefläche eben ausgebildet. Die Anlagefläche 12 weist dabei eine Fläche auf, die größer ist als die Querschnittsfläche durch den Klemmkörper 22, wobei sich die Querschnittsfläche als Fläche eines Schnitts senkrecht zur Längsachse der Schraube 25 außerhalb des Bereichs der Eingangsöffnung 23, insbesondere als Fläche der Oberseite 22a oder der Unterseite 22b, ergibt. Dadurch überdeckt von oben betrachtet die Anlagefläche 12 das Kontaktelement 20 im Wesentlichen vollständig. Insbesondere ist dabei die Fläche der Anlagefläche 12 größer als die projizierte Grundfläche des Klemmkörpers 22 des Kontaktelements 20. Dadurch wird gewährleistet, dass an die Anlagefläche 12 eine Automatisierungsvorrichtung beispielsweise mit einem Sauggreifer angreifen kann und das Kontaktelement 20 somit auf einfache Art und Weise in einer Automatisierungsvorrichtung gehandhabt werden kann.The arranged on the contact element 20 contact element 10 has a substantially rectangular contact surface 12, which has a recess 13 at a corner. The contact surface 12 is unbroken, so has no holes within the edge of the surface. Furthermore, the contact surface is flat. The contact surface 12 in this case has an area which is greater than the cross-sectional area through the clamping body 22, wherein the cross-sectional area as a surface of a section perpendicular to the longitudinal axis of the screw 25 outside the region of the inlet opening 23, in particular as the surface of the top 22a or the bottom 22b results. As a result, viewed from above, the contact surface 12 essentially completely covers the contact element 20. In particular, it is here The surface of the contact surface 12 is larger than the projected base of the clamping body 22 of the contact element 20. This ensures that the contact surface 12 an automation device can attack, for example with a suction pad and the contact element 20 can thus be handled in a simple manner in an automation device ,

Das Anlageelement 10 ist über ein Befestigungselement 14 an dem Kontaktelement 20 lösbar befestigt, wobei die Befestigung derart stabil sein sollte, dass auch bei Greifen lediglich des Anlageelements 10 durch eine Automatisierungsvorrichtung sich das nach unten hängende Kontaktelement 20 nicht durch das eigene Gewicht lösen können soll. Vorliegend weist das Befestigungselement 14 zwei Ringsegmente 15 auf, welche formschlüssig den Schraubenkopf 26 der Schraube 25 umgreifen oder welche auf den Schraubenkopf 26 der Schraube 25 aufrasten. Dabei sollte gewährleistet sein, dass sich der Schraubenkopf 26 in dem Befestigungselement 14 nicht ohne Weiteres verdrehen lässt.The contact element 10 is detachably fastened to the contact element 20 via a fastening element 14, wherein the attachment should be so stable that even when gripping only the contact element 10 by an automation device, the downwardly hanging contact element 20 should not be able to be released by its own weight. In the present case, the fastening element 14 has two ring segments 15, which positively surround the screw head 26 of the screw 25 or which latch onto the screw head 26 of the screw 25. It should be ensured that the screw head 26 in the fastener 14 can not be rotated easily.

An dem Anlageelement 10, insbesondere an der Anlagefläche 12 ist ein Seitenflügel 18 im Wesentlichen senkrecht auf der Anlagefläche 12 stehend angeordnet, wobei er auf der gleichen Seite der Anlagefläche 12 angeordnet ist wie das Befestigungselement 14 und somit im an dem Kontaktelement 20 befestigten Zustand des Anlageelements 10 in Richtung auf das Kontaktelement 20 weist. Der Seitenflügel 18 ist dabei derart ausgebildet, dass er im auf das Kontaktelement 20 aufgesetzten Zustand des Anlageelements 10 derart an dem Kontaktelement 20 anliegt, dass das Anlageelement 10 nicht gegen das Kontaktelement 20, beispielsweise um die Längsachse der Schraube 25, verdreht werden kann. Beispielsweise liegt dazu der Seitenflügel 18 direkt auf einer Seitenfläche des Klemmkörpers 22 an. Insbesondere können auch mehr als ein Seitenflügel 18 an dem Anlageelement 10 angeordnet werden. Mit Hilfe des Anlageelements 10 ist somit einerseits gewährleistet, dass die Schraube 25 verliersicher an dem Kontaktelement 20 angeordnet ist. Andererseits kann die Schraube 25 auch nicht mehr in dem Klemmkörper 22 verdreht werden, so dass sie sich weder hinaus noch in den Klemmkörper 22 hinein drehen lässt und somit nach Montage des Kontaktelements 20 ohne weitere Handgriffe direkt der entsprechende Leiter an dem Kontaktelement 20 angeschlossen werden kann.On the contact element 10, in particular on the contact surface 12, a side wing 18 is arranged substantially perpendicular to the contact surface 12, wherein it is arranged on the same side of the contact surface 12 as the fastening element 14 and thus in the attached to the contact element 20 state of the contact element 10 in the direction of the contact element 20 has. The side wing 18 is designed such that it rests in the patch on the contact element 20 state of the contact element 10 on the contact element 20 such that the contact element 10 can not be against the contact element 20, for example, about the longitudinal axis of the screw 25, rotated. For example, the side wing 18 abuts directly on a side surface of the clamping body 22. Especially more than one side wing 18 can be arranged on the contact element 10. With the help of the contact element 10 is thus on the one hand ensures that the screw 25 is arranged captive on the contact element 20. On the other hand, the screw 25 can not be rotated in the clamp body 22, so that they can neither turn out nor into the clamp body 22 and thus after mounting the contact element 20 without further manipulation directly the corresponding conductor can be connected to the contact element 20 ,

In Figur 3 ist das Ausführungsbeispiel bestehend aus dem Kontaktelement 20 und dem Anlageelement 10 gemäß Figur 1 in einem in ein Transportband 30 einer Automatisierungsvorrichtung, beispielsweise eines Bestückungsautomats, eingesetzt dargestellt. Das Transportband 30 ist im Wesentlichen U-förmig ausgebildet, so dass das Kontaktelement 20 von oben in das Transportband 30 eingehängt werden kann und mit den kurzen Seiten der im Wesentlichen rechteckigen Anlagefläche 12 des Anlageelements 10 in Ausnehmungen 31, 32 des Transportbands eingreift. Dabei ist die Ausnehmung 31 etwas schmaler als die Ausnehmung 32, so dass das Anlageelement 10, welches in der Anlagefläche 12 nur an einer Seite die Ausnehmung 13 aufweist, in eindeutiger Orientierung in das Transportband 30 eingesetzt werden kann. Auf diese Weise wird sichergestellt, dass die Kontaktelemente 20 alle in gleicher Orientierung in dem Transportband 30 transportiert werden.In FIG. 3 is the embodiment consisting of the contact element 20 and the contact element 10 according to FIG. 1 in a shown in a conveyor belt 30 of an automation device, such as a pick and place machine, used. The conveyor belt 30 is substantially U-shaped, so that the contact element 20 can be suspended from above in the conveyor belt 30 and engages with the short sides of the substantially rectangular contact surface 12 of the contact element 10 in recesses 31, 32 of the conveyor belt. In this case, the recess 31 is slightly narrower than the recess 32, so that the contact element 10, which has the recess 13 in the contact surface 12 only on one side, can be inserted into the conveyor belt 30 in a clear orientation. In this way, it is ensured that the contact elements 20 are all transported in the same orientation in the conveyor belt 30.

In Figur 4 ist ein weiteres Ausführungsbeispiel der Erfindung dargestellt. Das Kontaktelement 20 ist im Wesentlichen identisch zu dem Kontaktelement 20 des ersten Ausführungsbeispiels, wobei gleiche Teile mit gleichen Bezugsziffern bezeichnet sind. Auch das Anlageelement 10 entspricht im Wesentlichen dem Anlageelement 10 gemäß dem ersten Ausführungsbeispiel, so dass gleiche Teile mit gleichen Bezugsziffern bezeichnet sind. Das Anlageelement 10 gemäß dem zweiten Ausführungsbeispiel unterscheidet sich von dem Anlageelement 10 gemäß dem ersten Ausführungsbeispiel in der Ausbildung des Befestigungselements 14. Vorliegend ist dieses Befestigungselement 14 aus mehreren Federelementen 16 gebildet, welche an dem Außenumfang des Schraubenkopfes 26 der Schraube 25 anliegen.In FIG. 4 another embodiment of the invention is shown. The contact element 20 is substantially identical to the contact element 20 of the first embodiment, wherein like parts are designated by like reference numerals. Also, the contact element 10 substantially corresponds the contact element 10 according to the first embodiment, so that like parts are designated by like reference numerals. The contact element 10 according to the second exemplary embodiment differs from the contact element 10 according to the first exemplary embodiment in the design of the fastening element 14. In the present case, this fastening element 14 is formed from a plurality of spring elements 16 which rest on the outer circumference of the screw head 26 of the screw 25.

Figur 5 zeigt schließlich ein drittes Ausführungsbeispiel der Erfindung, wobei das Anlageelement 10 im Wesentlichen dem Anlageelement 10 des zweiten Ausführungsbeispiels gemäß Figur 4 entspricht. Das Kontaktelement 20 entspricht im Wesentlichen auch dem Kontaktelement 20 gemäß dem zweiten Ausführungsbeispiel in Figur 4, so dass gleiche Teile mit gleichen Bezugsziffern bezeichnet sind. Das Kontaktelement 20 des dritten Ausführungsbeispiels unterscheidet sich von den Kontaktelementen 20 des ersten und zweiten Ausführungsbeispiels dadurch, dass an der Unterseite 22b keine Lötpins 27 angeordnet sind, sondern dass die Unterseite 22b als SMD-Fläche 28 ausgebildet ist. FIG. 5 shows, finally, a third embodiment of the invention, wherein the contact element 10 substantially the contact element 10 of the second embodiment according to FIG. 4 equivalent. The contact element 20 essentially corresponds to the contact element 20 according to the second exemplary embodiment in FIG FIG. 4 , so that like parts are designated by like reference numerals. The contact element 20 of the third embodiment differs from the contact elements 20 of the first and second embodiments in that no soldering pins 27 are arranged on the underside 22b, but that the underside 22b is formed as an SMD surface 28.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Anlageelementcontact element
1212
Anlageflächecontact surface
1313
Ausnehmungrecess
1414
Befestigungselementfastener
1515
Ringsegmentring segment
1616
Federelementspring element
1818
Seitenflügelwing
2020
Kontaktelementcontact element
2222
Klemmkörperclamping bodies
22a22a
Oberseitetop
22b22b
Unterseitebottom
22c22c
Vorderseitefront
2323
Eingangsöffnungentrance opening
2424
Drahtschutzwire protection
2525
Schraubescrew
2626
Schraubenkopfscrew head
2727
Lötpinsolder pin
2828
SMD-FlächeSMD surface
3030
Transportbandconveyor belt
3131
Ausnehmungrecess
3232
Ausnehmungrecess

Claims (10)

  1. A contact element (20) for printed circuit board terminals with a terminal body (22), which has an input opening (23) for the introduction of a lead and a screw (25) for fastening the lead in the terminal body (22) with clamping, and with an abutment element (10) with an abutment face (12) and a fastening element (14), by way of which the abutment element (10) is fastened to the contact element (20) in a releasable manner, characterized in that the abutment face (12) has an area which is larger than the cross-sectional area of the terminal body (22), which is formed as the face of a section at a right angle to the longitudinal axis of the screw (25) outside the region of the input opening (23), and the fastening element (14) is fastened to a head (26) of the screw (25) of the contact element in a releasable manner.
  2. A contact element (20) according to claim 1, characterized in that the abutment face is flat and uninterrupted.
  3. A contact element (20) according to one of the preceding claims, characterized in that the fastening element (14) is a catch element, a clamping element and/or an element effecting positive locking.
  4. A contact element (20) according to any one of the preceding claims, characterized in that the fastening element (14) is designed in the form of a ring or at least one and preferably two annular segments (15).
  5. A contact element (20) according to any one of the preceding claims, characterized in that a side wing (18) is arranged on the abutment element (10) in such a way that in the state of the abutment element (10) fastened to the contact element (20) it rests against the contact element (20) in such a way that it forms a means to prevent rotation.
  6. A contact element (20) according to any one of the preceding claims, characterized in that two side wings are arranged on the abutment element (10) in such a way that in the state of the abutment element (10) fastened to the contact element (20) they rest against the contact element (20) in such a way that the contact element (20) is clamped in a releasable manner.
  7. A contact element (20) according to any one of the preceding claims, characterized in that the abutment face (12) is made substantially rectangular and has a recess (13) at one corner.
  8. A contact element (20) according to any one of the preceding claims, characterized in that a wire protector (24) is arranged on the terminal body (22).
  9. A contact element (20) according to any one of the preceding claims, characterized in that at least one soldering pin (27) or an SMD (surface mounted device) face (28) is provided on the terminal body (22).
  10. A contact element (20) according to any one of the preceding claims, characterized in that the contact element (10) [sic] is designed in the form of a single pole terminal.
EP08000768A 2007-01-24 2008-01-16 Terminal element Not-in-force EP1950840B1 (en)

Applications Claiming Priority (1)

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DE102007004547A DE102007004547A1 (en) 2007-01-24 2007-01-24 contact element

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EP1950840A3 EP1950840A3 (en) 2010-08-04
EP1950840B1 true EP1950840B1 (en) 2011-12-14

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EP (1) EP1950840B1 (en)
AT (1) ATE537580T1 (en)
DE (1) DE102007004547A1 (en)

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Also Published As

Publication number Publication date
US7695327B2 (en) 2010-04-13
DE102007004547A1 (en) 2008-07-31
EP1950840A3 (en) 2010-08-04
EP1950840A2 (en) 2008-07-30
US20080261463A1 (en) 2008-10-23
ATE537580T1 (en) 2011-12-15

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