EP3350881B1 - Terminal clamp for connecting an electrical conductor - Google Patents

Terminal clamp for connecting an electrical conductor Download PDF

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Publication number
EP3350881B1
EP3350881B1 EP16767208.8A EP16767208A EP3350881B1 EP 3350881 B1 EP3350881 B1 EP 3350881B1 EP 16767208 A EP16767208 A EP 16767208A EP 3350881 B1 EP3350881 B1 EP 3350881B1
Authority
EP
European Patent Office
Prior art keywords
clamping
articulation
connection terminal
open position
conductor
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.)
Active
Application number
EP16767208.8A
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German (de)
French (fr)
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EP3350881A1 (en
Inventor
Markus Kettern
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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Publication date
Application filed by Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP3350881A1 publication Critical patent/EP3350881A1/en
Application granted granted Critical
Publication of EP3350881B1 publication Critical patent/EP3350881B1/en
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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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/40—Pivotable clamping 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
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring
    • 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

Definitions

  • the present invention relates to a connection terminal for connecting an electrical conductor, comprising an insulating material housing with at least one conductor clamping device that is designed to be operable in each case via an actuating element that is mounted in the insulating material housing such that it can pivot about an axis, the conductor clamping device comprising a clamping point for the electrical conductor that formed by a contact element arranged in a stationary manner in the insulating material housing and a clamping spring arranged in the insulating housing so that it can be moved between an open position and a clamping position by means of the actuating element, in that a free leg of the clamping spring is articulated on the actuating element via a connecting element, so that by means of a pivoting movement of the actuating element in a first direction, the clamping spring under the action of a tensile force via the connecting element into the open position and by means of a force opposite to the first direction deflection movement is moved into the clamping position, wherein the actuating element comprises an
  • Such a terminal is, for example, from the documents DE 10 2012 110 895 A1 , DE 103 19 869 A1 , WO 2014/191676 A1 and DE 102 37 701 A1 known.
  • connection terminals include a housing with a conductor insertion opening through which an electrical conductor can be inserted into the terminal housing.
  • a busbar is arranged in the housing as a contact element and a rotatably mounted spring element which can be pivoted between an open and a clamped position via a corresponding actuating element.
  • the inserted electrical conductor In the clamping position, the inserted electrical conductor is held by the clamping point formed by the spring element and the busbar and at the same time makes electrical contact. In the open position, the electrical conductor is released from the spring element and can be removed from the conductor insertion opening without any force.
  • the disadvantage is that in order to hold the clamping point in the open position, the operator has to continuously exert a force on the actuating element. For example, it is not possible to operate the known connection terminal with one hand, since an actuating force always has to be applied to open the terminal point.
  • connection terminal of the type mentioned at the outset which ensures simple and convenient operation while at the same time reliably clamping the electrical conductor.
  • the object is achieved by a terminal according to claim 1, wherein the orientation of the lever arm in the open position offers the advantage that the actuating element achieves a torque-free or essentially torque-free state in the open position.
  • the tensile force of the clamping spring acts in the direction or essentially in the direction of the lever arm, so that the torque acting on the actuating element is minimal.
  • the actuating element if it has once been moved into the open position—remains in this position automatically.
  • the clamping point is also open in this state and the electrical conductor can be inserted between the contact element and the free leg of the clamping spring without holding forces having to be exerted on the actuating element from the outside. In this way, the electrical conductor can be inserted into the connection terminal according to the invention, in particular with one hand.
  • the actuating element To clamp the electrical conductor, the actuating element must be actively pivoted in a direction opposite to the first direction.
  • connection terminal according to the invention is designed and set up to be bistable. If the open position is reached by pivoting the actuating element, the ladder clamping device automatically remains in this open position until the actuating element is actively pivoted in the opposite direction in order to be transferred back into the clamping position.
  • “At least essentially parallel” is to be understood as parallel or essentially parallel, i.e. deviating from the parallel by a small angular amount, in particular by an angular amount of less than 10°.
  • the conductor clamping device is therefore such designed so that the previously described tensile force of the clamping spring and the torques acting on the actuating element act only within the conductor clamping device, while this is largely free of forces to the outside.
  • the invention according to claim 1 is characterized in that the connecting element comprises a flat contact area which overlaps the articulation element, so that the articulation element is set up to be displaceable relative to the contact area.
  • the articulation element arranged eccentrically on the actuating element can move on the circular path section predetermined by the eccentric arrangement. While a force component in the direction of the tensile force is transmitted directly to the connecting element from the articulation element, movements of the articulation element in a direction orthogonal thereto are not transmitted directly to the connecting element.
  • the flat contact area is preferably formed by a folded area of the connecting element.
  • a preferred development of the invention is characterized in that the flat contact area is arranged at right angles to a connecting section of the connecting element. In this way, the largest possible bearing surface is achieved between the articulation element and the contact area of the connecting element. More preferably, the connection section and the contact area are formed in one piece, for example by edging a part of the connection section at right angles, which thus forms the contact area.
  • the connecting section is angled. In this way, the inclination of the free leg of the clamping spring in relation to the housing base of the insulating material housing is at least partially compensated, so that the contact area assumes a parallel or at least essentially parallel position to the housing base in the clamping position.
  • the connecting section is preferably angled in such a way that said inclined position of the free leg in the clamped position when the electrical conductor is not inserted leads to an alignment of the contact area that is parallel or substantially parallel to the housing base.
  • a further expedient embodiment of the invention is characterized in that the actuating element comprises an operating lever set up for operating the conductor clamping device, the operating lever being set up in the clamping position with its underside resting on a partial area of the insulating material housing above the clamping point.
  • the articulation element is arranged on the actuating element in such a way that in the clamped position the articulation element is in any case positioned below the center of the axis, namely between the center of the axis and the free leg of the clamping spring. With respect to the bottom of the housing, the articulation element is consequently arranged below the center of the axis on the actuating element.
  • a further expedient embodiment of the invention is characterized in that the pivoting range of the actuating element between the clamped position and the open position is chosen to be at least large enough for the articulation element to be positioned above the center of the axis in the clamped position.
  • a minimization of the torque acting on the actuating element in the open position which would otherwise bring about an automatic return to the clamping position, is achieved.
  • the arrangement mentioned ensures that the actuating element remains in the open position even without the action of external forces.
  • the pivoting range of the actuating element between the clamping position and the open position preferably includes an angle of more than 90°.
  • the articulation element is designed to project at the front.
  • the geometry of the actuating element can be kept as simple as possible, since articulation of the connecting element is made possible by lateral arrangement with engagement with the projecting articulation element.
  • the articulation element is designed as a double pin.
  • the design of the articulation element as a double pin gives it greater mechanical stability.
  • the double pin provides a larger contact surface with the contact area. In addition to better distribution of the acting tensile force, this also leads to more stable behavior of the actuating element, particularly in the open position, so that the actuating element in the open position remains in the open position or returns to this position automatically even if the actuating element is deflected slightly in the direction of the clamping position.
  • the double pivots have the profile of a horizontal eight.
  • the double pivots are consequently connected in a merging manner and thus form a one-piece articulation element.
  • a high mechanical stability of the articulation element is achieved due to the one-piece construction.
  • FIG 1 is a perspective view of the connection terminal according to the invention with the insulating material housing 10 open, in a clamping position, in which an electrical conductor—not shown in the drawing—inserted via a conductor guide 11 is connected by means of the in figure 3 shown conductor clamping device 12 on the one hand electrically contacted and on the other hand held by clamping under spring action.
  • the conductor clamping device 12 is designed and set up so that it can be operated by means of an actuating element 13 .
  • the actuating element 13 is mounted in the insulating material housing 10 such that it can be pivoted about an axis.
  • the actuating element 13 comprises, for example, a bore 14 through which a shaft of the insulating material housing 10 is guided, which thus forms the aforementioned axis--not shown in the drawing.
  • the conductor clamping device 12 includes a terminal point 15 for the electrical conductor.
  • the clamping point 15 comprises a contact element 16 which is arranged in a stationary manner in the insulating housing 10 .
  • the clamping spring 17 is by means of the actuating element 13 between the in the figures 1 and 3 clamping position shown and one in the respective figures 2 and 4 shown open position movably arranged in the insulating housing 10.
  • the free leg 18 of the clamping spring 17 is articulated via a connecting element 19 in such a way that the free leg 18 is arranged in the insulating material housing 10 so that it can move between the open and clamping positions.
  • a pivoting movement of the actuating element 13 in a first direction in the figures 1 and 3 shown conductor clamping device 12 from the clamping position in the figures 2 and 4 shown open position, wherein the clamping spring 17 is applied via the connecting element 19 with a tensile force which acts against the restoring spring force.
  • a counterclockwise pivoting movement brings about the transfer into the open position, while a clockwise pivoting, ie in a direction opposite to the first direction, causes the transfer from the open position into the clamping position.
  • the actuating element 13 comprises an articulation element 20 which is designed for articulating the connecting element 19 and is arranged at a radial distance from the center of the axis 21 .
  • the articulation element 20 is arranged on the actuating element 13 in such a way that in the open position the lever arm formed by the articulation element 20 and the axis center 21 is at least essentially parallel to the direction of the tensile force acting on the free leg 18 of the clamping spring 17 by means of the connecting element 19.
  • At least essentially parallel within the meaning of the invention means either parallel or almost parallel, i.e. with a maximum deviation from parallel of ⁇ 10°.
  • the lever arm denotes the distance between the articulation element 20 and the center of the axis.
  • the actuating element 13 If the actuating element is pivoted out of the clamping position in the first direction, the component of the tensile force acting at right angles to the lever arm causes a restoring moment. The further the actuating element 13 approaches the open position, the more the lever arm is aligned in the direction of the tensile force, so that the restoring moment acting on the actuating element 13 becomes smaller and smaller. When the open position is reached, the lever arm and the tensile force point in the same direction or in approximately the same direction, so that the restoring moment disappears or becomes minimal. In this way, the actuating element 13 can be held in the open position without the action of external forces. An electrical conductor can thus be inserted into the connection terminal or its conductor entry 11 in a particularly simple and convenient manner, in particular with one hand.
  • the actuating element 13 is pivoted in the aforementioned opposite direction.
  • the contact element 16 is placed on the electrical conductor, which is now clamped against the contact element 16 by the restoring spring force of the clamping spring 17 and at the same time is electrically contacted.
  • the connecting element 19 is released from the articulation element 20 and can, in principle, be moved completely back into the original clamping position without any force.
  • the terminal shown is designed as a printed circuit board terminal and includes soldering connection pins 22 which are electrically conductively connected to the contact element 16 .
  • the contact element 16 and the solder connection pins 22 are advantageously formed in one piece.
  • other connection elements can be provided, for example known solder contact elements that allow the connection terminal to be mounted on the circuit board surface, in particular by soldering.
  • the connecting element 19 preferably comprises a planar contact area 23.
  • the contact area 23 overlaps, as in FIGS Figures 1 to 4 visible, the articulation element 20.
  • the articulation element 20 is therefore configured to be displaceable relative to the contact area 23.
  • the articulation element 20 can thus on the one hand come into contact with the contact area 23 for transmitting the tensile force and transmit it in the direction of the tensile force, but is free to move laterally.
  • the flat contact area 23 is arranged at right angles to a connecting section 24 of the connecting element 19 .
  • the contact area 23 and the connecting section 24 form an L-shaped profile.
  • Connecting section 24 is advantageously angled. Particularly preferred is the connecting portion 24, as shown in FIGS Figures 1 to 4 shown, angled in such a way that the contact area 23 is aligned horizontally or parallel to the housing base of the insulating material housing in the clamped position without an inserted electrical conductor.
  • the actuating element 13 comprises an operating lever 25 designed to operate the conductor clamping device 11, the operating lever 25 resting with its underside 26 on a partial area 27 of the insulating material housing 10 above the clamping point 15 in the clamping position.
  • the articulation element 20 is advantageously arranged on the actuating element 13 in such a way that the articulation element 20 is positioned below the axis center 21 in any case in the clamped position.
  • the position of the articulation element 20 is consequently between the center of the axis 21 and the free leg 18 of the clamping spring 17.
  • the pivoting range of the actuating element 13 between the clamped position and the open position is selected to be at least large enough for the articulation element 20 to be positioned above the center of the axis 21 in the clamped position.
  • the pivoting range therefore includes at least an angle greater than 90°.
  • the articulation element 20 is advantageously designed to project at the front. More preferably, the end face 28 of the actuating element 13 itself is recessed with respect to a side surface 29 of the actuating element. In other words, the actuating element advantageously has a circular recess 30 so that the end face 28 is offset to the rear in relation to the side face 29 . In this case, the height of the articulation element 20 , starting from the end face, is chosen to be at most so large that it does not protrude beyond the side face 29 beyond the recess 30 .
  • the articulation element 20 is preferably designed as a double pin, which can each be designed separately or in one piece.
  • the double pivots preferably have the profile of a horizontal eight.
  • the double pins increase the overall stability and, on the other hand, the double pins improve self-retention of the actuating element 13 in the open position.
  • FIG. 5 Another advantageous embodiment of the invention is in the figures 5 and 6 shown. while in the figure 5 Figure 12 shows a perspective view of a PCB mount multiple terminal block with horizontal wire entries 11 figure 6 a multiple terminal block with vertical conductor entries 11.
  • the structure of the shown Multiple connection terminals basically corresponds to that described above and in connection with the Figures 1 to 4 explained connection terminal according to the invention, with the difference that in the insulating housing several of the conductor clamping devices 12 are arranged.
  • connection terminals are designed as plugs.
  • a perspective view of such a connector plug is shown in figure 7 shown.
  • the connector plug is preferably designed as a multiple connection terminal and has horizontal conductor entries 11 in each case.
  • the multi-port plug shown is as shown in figure 8 shown, designed as a multiple connection terminal with vertical conductor entries 11.
  • the contact element 16 are each designed as plug-in contact elements 31 . To avoid repetition, reference is made to the above explanations with regard to the conductor clamping devices 12 .

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  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

Die vorliegende Erfindung betrifft eine Anschlussklemme zum Anschließen eines elektrischen Leiters, umfassend ein Isolierstoffgehäuse mit mindestens einer jeweils über ein Betätigungselement, das um eine Achse schwenkbar in dem Isolierstoffgehäuse gelagert ist, bedienbar ausgebildeten Leiterklemmeinrichtung, wobei die Leiterklemmeinrichtung eine Klemmstelle für den elektrischen Leiter umfasst, die von einem ortsfest in dem Isolierstoffgehäuse angeordneten Kontaktelement und einer mittels dem Betätigungselement zwischen einer Offenstellung und einer Klemmstellung in dem Isoliergehäuse bewegbar angeordneten Klemmfeder gebildet wird, indem ein freier Schenkel der Klemmfeder über ein Verbindungselement an dem Betätigungselement angelenkt ist, so dass mittels einer Schwenkbewegung des Betätigungselements in eine erste Richtung die Klemmfeder unter Beaufschlagung mit einer Zugkraft über das Verbindungselement in die Offenstellung sowie mittels einer der ersten Richtung entgegengesetzten Schwenkbewegung in die Klemmstellung bewegt wird, wobei das Betätigungselement ein von dessen Achsmitte radial beabstandetes und zur Anlenkung des Verbindungselements ausgebildetes Anlenkelement umfasst.The present invention relates to a connection terminal for connecting an electrical conductor, comprising an insulating material housing with at least one conductor clamping device that is designed to be operable in each case via an actuating element that is mounted in the insulating material housing such that it can pivot about an axis, the conductor clamping device comprising a clamping point for the electrical conductor that formed by a contact element arranged in a stationary manner in the insulating material housing and a clamping spring arranged in the insulating housing so that it can be moved between an open position and a clamping position by means of the actuating element, in that a free leg of the clamping spring is articulated on the actuating element via a connecting element, so that by means of a pivoting movement of the actuating element in a first direction, the clamping spring under the action of a tensile force via the connecting element into the open position and by means of a force opposite to the first direction deflection movement is moved into the clamping position, wherein the actuating element comprises an articulation element which is spaced radially from its axis center and is designed for articulating the connecting element.

Eine derartige Anschlussklemme ist beispielsweise aus den Dokumenten DE 10 2012 110 895 A1 , DE 103 19 869 A1 , WO 2014/191676 A1 und DE 102 37 701 A1 bekannt.Such a terminal is, for example, from the documents DE 10 2012 110 895 A1 , DE 103 19 869 A1 , WO 2014/191676 A1 and DE 102 37 701 A1 known.

Die bekannten Anschlussklemmen umfassen ein Gehäuse mit einer Leitereinführungsöffnung, über die ein elektrischer Leiter in das Klemmengehäuse eingeführt werden kann.The known connection terminals include a housing with a conductor insertion opening through which an electrical conductor can be inserted into the terminal housing.

In dem Gehäuse ist eine Stromschiene als Kontaktelement sowie ein drehbar gelagertes Federelement angeordnet, das über ein entsprechendes Betätigungselement zwischen einer Offen- und einer Klemmposition verschwenkbar ist.A busbar is arranged in the housing as a contact element and a rotatably mounted spring element which can be pivoted between an open and a clamped position via a corresponding actuating element.

In der Klemmposition wird der eingeführte elektrische Leiter von der durch das Federelement und der Stromschiene gebildeten Klemmstelle gehalten und zugleich elektrisch kontaktiert. In der Offenposition kommt der elektrische Leiter von dem Federelement frei und kann aus der Leitereinführungsöffnung kräftefrei entnommen werden.In the clamping position, the inserted electrical conductor is held by the clamping point formed by the spring element and the busbar and at the same time makes electrical contact. In the open position, the electrical conductor is released from the spring element and can be removed from the conductor insertion opening without any force.

Nachteilig ist, dass zum Halten der Klemmstelle in der Offenposition fortwährend vom Bediener eine Kraft auf das Betätigungselement auszuüben ist. So ist es beispielsweise nicht möglich, die bekannte Anschlussklemme einhändig zu bedienen, da zum Öffnen der Klemmstelle stets eine Betätigungskraft aufzubringen ist.The disadvantage is that in order to hold the clamping point in the open position, the operator has to continuously exert a force on the actuating element. For example, it is not possible to operate the known connection terminal with one hand, since an actuating force always has to be applied to open the terminal point.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Anschlussklemme der eingangs genannten Art vorzuschlagen, die eine einfache und komfortable Bedienung bei zugleich zuverlässiger Klemmung des elektrischen Leiters gewährleistet.It is therefore the object of the present invention to propose a connection terminal of the type mentioned at the outset, which ensures simple and convenient operation while at the same time reliably clamping the electrical conductor.

Die Aufgabe wird gelöst durch eine Anschlussklemme nach Anspruch 1, wobei die Ausrichtung des Hebelarms in der Offenstellung den Vorteil bietet, dass das Betätigungselement in der Offenstellung einen drehmomentfreien oder im Wesentlichen drehmomentfreien Zustand erreicht.The object is achieved by a terminal according to claim 1, wherein the orientation of the lever arm in the open position offers the advantage that the actuating element achieves a torque-free or essentially torque-free state in the open position.

Die Zugkraft der Klemmfeder wirkt in der Offenstellung in Richtung bzw. im Wesentlichen in Richtung des Hebelarmes, so dass das auf das Betätigungselement wirkende Drehmoment minimal wird. Auf diese Weise verbleibt das Betätigungselement - sofern es einmal in die Offenstellung bewegt wurde - selbsttätig in dieser. Die Klemmstelle ist in diesem Zustand ebenfalls geöffnet und der elektrische Leiter kann zwischen dem Kontaktelement und dem freiem Schenkel der Klemmfeder eingeführt werden, ohne dass auf das Betätigungselement von außen Haltekräfte ausgeübt werden müssen. Auf diese Weise kann der elektrische Leiter insbesondere einhändig in die erfindungsgemäße Anschlussklemme eingeführt werden. Zum Klemmen des elektrischen Leiters muss das Betätigungselement in eine der ersten Richtung entgegengesetzte Richtung aktiv verschwenkt werden.In the open position, the tensile force of the clamping spring acts in the direction or essentially in the direction of the lever arm, so that the torque acting on the actuating element is minimal. In this way, the actuating element—if it has once been moved into the open position—remains in this position automatically. The clamping point is also open in this state and the electrical conductor can be inserted between the contact element and the free leg of the clamping spring without holding forces having to be exerted on the actuating element from the outside. In this way, the electrical conductor can be inserted into the connection terminal according to the invention, in particular with one hand. To clamp the electrical conductor, the actuating element must be actively pivoted in a direction opposite to the first direction.

Mit anderen Worten ist die erfindungsgemäße Anschlussklemme bistabil ausgebildet und eingerichtet. Wird durch Verschwenken des Betätigungselements die Offenstellung erreicht, verbleibt die Leiterklemmeinrichtung selbsttätig in dieser Offenstellung solange, bis das Betätigungselement aktiv in die entgegengesetzte Richtung verschwenkt wird, um wieder in die Klemmstellung überführt zu werden. Unter "zumindest im Wesentlichen parallel" ist parallel oder im Wesentlichen parallel, d.h. um einen kleinen Winkelbetrag, insbesondere um einen Winkelbetrag kleiner 10°, von der Parallelen abweichend zu verstehen.In other words, the connection terminal according to the invention is designed and set up to be bistable. If the open position is reached by pivoting the actuating element, the ladder clamping device automatically remains in this open position until the actuating element is actively pivoted in the opposite direction in order to be transferred back into the clamping position. "At least essentially parallel" is to be understood as parallel or essentially parallel, i.e. deviating from the parallel by a small angular amount, in particular by an angular amount of less than 10°.

Ein weiterer Vorteil besteht darin, dass keine Kräfte von der Leiterklemmeinrichtung auf das Isolierstoffgehäuse wirken. Die Leiterklemmeinrichtung ist daher derart ausgebildet, dass die zuvor beschriebene Zugkraft der Klemmfeder und die auf das Betätigungselement wirkenden Drehmomente nur innerhalb der Leiterklemmeinrichtung wirken, während diese nach außen hin weitestgehend kräftefrei ist.Another advantage is that no forces from the conductor clamping device act on the insulating housing. The conductor clamping device is therefore such designed so that the previously described tensile force of the clamping spring and the torques acting on the actuating element act only within the conductor clamping device, while this is largely free of forces to the outside.

Weiterhin ist die Erfindung nach Anspruch 1 dadurch gekennzeichnet, dass das Verbindungselement einen flächigen Anlagebereich umfasst, der das Anlenkelement übergreift, so dass das Anlenkelement relativ zu dem Anlagebereich verschiebbar eingerichtet ist. Auf diese Weise kann sich das exzentrisch an dem Betätigungselement angeordnete Anlenkelement auf dem durch die exzentrische Anordnung vorgegebenen Kreisbahnabschnitt bewegen. Während eine Kraftkomponente in Richtung der Zugkraft unmittelbar auf das Verbindungselement von dem Anlenkelement übertragen wird, werden Bewegungen des Anlenkelements in orthogonaler Richtung dazu nicht unmittelbar auf das Verbindungselement übertragen. Der flächige Anlagebereich wird vorzugsweise durch einen abgekanteten Bereich des Verbindungselements gebildet.Furthermore, the invention according to claim 1 is characterized in that the connecting element comprises a flat contact area which overlaps the articulation element, so that the articulation element is set up to be displaceable relative to the contact area. In this way, the articulation element arranged eccentrically on the actuating element can move on the circular path section predetermined by the eccentric arrangement. While a force component in the direction of the tensile force is transmitted directly to the connecting element from the articulation element, movements of the articulation element in a direction orthogonal thereto are not transmitted directly to the connecting element. The flat contact area is preferably formed by a folded area of the connecting element.

Eine bevorzugte Weiterbildung der Erfindung zeichnet sich dadurch aus, dass der flächige Anlagebereich rechtwinklig zu einem Verbindungsabschnitt des Verbindungselements angeordnet ist. Auf diese Weise wird eine größtmögliche Auflagefläche zwischen dem Anlenkelement und dem Anlagebereich des Verbindungselements erzielt. Weiter bevorzugt sind der Verbindungsabschnitt und der Anlagebereich einstückig ausgebildet, beispielsweise durch rechtwinkliges Kanten eines Teils des Verbindungsabschnitts, der so den Anlagebereich bildet.A preferred development of the invention is characterized in that the flat contact area is arranged at right angles to a connecting section of the connecting element. In this way, the largest possible bearing surface is achieved between the articulation element and the contact area of the connecting element. More preferably, the connection section and the contact area are formed in one piece, for example by edging a part of the connection section at right angles, which thus forms the contact area.

Gemäß einer weiteren bevorzugten Ausbildung der Erfindung ist der Verbindungsabschnitt abgewinkelt. Auf diese Weise wird erreicht, dass die Schrägstellung des freien Schenkels der Klemmfeder in Bezug auf den Gehäuseboden des Isolierstoffgehäuses zumindest teilkompensiert wird, so dass der Anlagebereich in der Klemmstellung eine parallele oder zumindest im Wesentlichen parallele Position zu dem Gehäuseboden einnimmt. Bevorzugt ist der Verbindungsabschnitt derart abgewinkelt eingerichtet, dass die genannte Schrägstellung des freien Schenkels in der Klemmposition bei nicht eingeführtem elektrischen Leiter zu einer zu dem Gehäuseboden parallelen oder im Wesentlichen parallelen Ausrichtung des Anlagebereichs führt.According to a further preferred embodiment of the invention, the connecting section is angled. In this way, the inclination of the free leg of the clamping spring in relation to the housing base of the insulating material housing is at least partially compensated, so that the contact area assumes a parallel or at least essentially parallel position to the housing base in the clamping position. The connecting section is preferably angled in such a way that said inclined position of the free leg in the clamped position when the electrical conductor is not inserted leads to an alignment of the contact area that is parallel or substantially parallel to the housing base.

Eine weitere zweckmäßige Ausbildung der Erfindung ist dadurch gekennzeichnet, dass das Betätigungselement einen zum Bedienen der Leiterklemmeinrichtung eingerichteten Bedienhebel umfasst, wobei der Bedienhebel in der Klemmstellung mit seiner Unterseite auf einem Teilbereich des Isolierstoffgehäuse oberhalb der Klemmstelle aufliegend eingerichtet ist. Dies bietet den Vorteil, dass der Bedienhebel in der Klemmstellung eng am Isolierstoffgehäuse anliegt und zugleich einen definierten Endanschlag aufweist.A further expedient embodiment of the invention is characterized in that the actuating element comprises an operating lever set up for operating the conductor clamping device, the operating lever being set up in the clamping position with its underside resting on a partial area of the insulating material housing above the clamping point. This offers the advantage that the operating lever in the clamped position is in close contact with the insulating housing and at the same time has a defined end stop.

Gemäß einer weiteren bevorzugten Ausführungsform ist das Anlenkelement derart an dem Betätigungselement angeordnet, dass das Anlenkelement in der Klemmstellung jedenfalls unterhalb der Achsmitte, nämlich zwischen der Achsmitte und dem freien Schenkel der Klemmfeder, positioniert ist. Bezüglich des Gehäusebodens ist das Anlenkelement folglich unterhalb der Achsmitte an dem Betätigungselement angeordnet. Dies bietet den Vorteil, dass der von dem Anlenkelement und der Achsmitte gebildete Hebelarm auch in der Klemmstellung parallel bzw. im Wesentlichen parallel zu der Richtung der Zugkraft ausgerichtet ist.According to a further preferred embodiment, the articulation element is arranged on the actuating element in such a way that in the clamped position the articulation element is in any case positioned below the center of the axis, namely between the center of the axis and the free leg of the clamping spring. With respect to the bottom of the housing, the articulation element is consequently arranged below the center of the axis on the actuating element. This offers the advantage that the lever arm formed by the articulation element and the center of the axle is also aligned parallel or essentially parallel to the direction of the tensile force in the clamped position.

Das auf das Betätigungselement über das Anlenkelement wirkende Drehmoment wird auf diese Weise auch in der Klemmstellung minimal. Es sei angemerkt, dass im Falle eines in die Klemmstelle eingeführten elektrischen Leiters, der freie Schenkel der Klemmfeder den elektrischen Leiter unter Federkraftwirkung kontaktiert und so das Anlenkelement von dem Verbindungselement bzw. dessen Anlagebereich bereits freikommt, bevor das Betätigungselement die eigentliche Klemmposition erreicht.In this way, the torque acting on the actuating element via the articulation element is also minimal in the clamped position. It should be noted that if an electrical conductor is inserted into the clamping point, the free leg of the clamping spring contacts the electrical conductor under the action of spring force and the articulation element is thus released from the connecting element or its contact area before the actuating element reaches the actual clamping position.

Eine weitere zweckmäßige Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass der Schwenkbereich des Betätigungselements zwischen der Klemmstellung und der Offenstellung mindestens so groß gewählt ist, dass das Anlenkelement in der Klemmstellung jedenfalls oberhalb der Achsmitte positioniert ist. Vorteilhafter Weise wird so eine Minimierung des auf das Betätigungselement in der Offenstellung wirkenden Drehmoments erzielt, das andernfalls eine selbsttätige Rückstellung in die Klemmstellung bewirken würde. Durch die genannte Anordnung wird gewährleistet, dass das Betätigungselement auch ohne Einwirkung äußerer Kräfte in der Offenstellung verbleibt. Vorzugsweise umfasst der Schwenkbereich des Betätigungselements zwischen der Klemmstellung und der Offenstellung einen Winkel von mehr als 90°.A further expedient embodiment of the invention is characterized in that the pivoting range of the actuating element between the clamped position and the open position is chosen to be at least large enough for the articulation element to be positioned above the center of the axis in the clamped position. Advantageously, a minimization of the torque acting on the actuating element in the open position, which would otherwise bring about an automatic return to the clamping position, is achieved. The arrangement mentioned ensures that the actuating element remains in the open position even without the action of external forces. The pivoting range of the actuating element between the clamping position and the open position preferably includes an angle of more than 90°.

Gemäß einer weiteren bevorzugten Ausbildung der Erfindung ist das Anlenkelement stirnseitig vorspringend ausgebildet. So kann die Geometrie des Betätigungselements möglichst einfach gehalten werden, da eine Anlenkung des Verbindungselements durch seitliche Anordnung unter Eingriff mit dem vorspringend ausgebildeten Anlenkelement ermöglicht wird.According to a further preferred embodiment of the invention, the articulation element is designed to project at the front. In this way, the geometry of the actuating element can be kept as simple as possible, since articulation of the connecting element is made possible by lateral arrangement with engagement with the projecting articulation element.

Eine vorteilhafte Weiterbildung der Erfindung sieht vor, dass das Anlenkelement als Doppelzapfen ausgebildet ist. Die Ausbildung des Anlenkelements als Doppelzapfen verleiht diesem eine größere mechanische Stabilität. Zudem wird durch den Doppelzapfen eine größere Anlagefläche mit dem Anlagebereich bereitgestellt. Dies führt neben einer besseren Verteilung der wirkenden Zugkraft auch zu einem stabileren Verhalten des Betätigungselements insbesondere in der Offenstellung, so dass das Betätigungselement in der Offenstellung auch bei kleiner Auslenkung des Betätigungselements in Richtung Klemmstellung noch in der Offenstellung verbleibt bzw. sich selbsttätig in diese zurückstellt.An advantageous development of the invention provides that the articulation element is designed as a double pin. The design of the articulation element as a double pin gives it greater mechanical stability. In addition, the double pin provides a larger contact surface with the contact area. In addition to better distribution of the acting tensile force, this also leads to more stable behavior of the actuating element, particularly in the open position, so that the actuating element in the open position remains in the open position or returns to this position automatically even if the actuating element is deflected slightly in the direction of the clamping position.

Gemäß einer bevorzugten Ausbildung weisen die Doppelzapfen das Profil einer liegenden Acht auf. Die Doppelzapfen sind folglich ineinander übergehend verbunden und bilden so ein einstückiges Anlenkelement. Durch die Einstückigkeit wird eine hohe mechanische Stabilität des Anlenkelements erzielt.According to a preferred embodiment, the double pivots have the profile of a horizontal eight. The double pivots are consequently connected in a merging manner and thus form a one-piece articulation element. A high mechanical stability of the articulation element is achieved due to the one-piece construction.

Weitere bevorzugte und/oder zweckmäßige Merkmale und Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung. Besonders bevorzugte Ausführungsformen werden anhand der beigefügten Zeichnung näher erläutert. In der Zeichnung zeigt:

Fig. 1
eine perspektivische Ansicht der erfindungsgemäßen Anschlussklemme bei geöffnetem Isolierstoffgehäuse in der Klemmstellung,
Fig. 2
die in Figur 1 gezeigte Anschlussklemme in der Offenstellung,
Fig. 3
eine perspektivische Ansicht der Leiterklemmeinrichtung in der Klemmstellung,
Fig. 4
eine perspektivische Ansicht der Leiterklemmeinrichtung in der Offenstellung,
Fig. 5
eine perspektivische Ansicht einer Mehrfachanschlussklemme zur Leiterplattenmontage mit horizontaler Leitereinführung,
Fig. 6
die in Figur 5 gezeigte Mehrfachanschlussklemme mit vertikaler Leitereinführung,
Fig. 7
eine perspektivische Ansicht einer als Stecker ausgebildeten Mehrfachanschlussklemme mit horizontaler Leitereinführung, und
Fig. 8
die in Figur 7 gezeigte Mehrfachanschlussklemme mit vertikaler Leitereinführung.
Further preferred and/or expedient features and refinements of the invention result from the dependent claims and the description. Particularly preferred embodiments are explained in more detail with reference to the attached drawing. In the drawing shows:
1
a perspective view of the connection terminal according to the invention with the insulating housing open in the clamping position,
2
in the figure 1 terminal shown in the open position,
3
a perspective view of the conductor clamping device in the clamping position,
4
a perspective view of the ladder clamping device in the open position,
figure 5
a perspective view of a multiple terminal block for PCB mounting with horizontal conductor entry,
6
in the figure 5 multi-connection terminal shown with vertical conductor entry,
7
a perspective view of a multi-connection terminal designed as a plug with horizontal conductor entry, and
8
in the figure 7 multi-connection terminal block shown with vertical conductor entry.

In der Figur 1 ist eine perspektivische Ansicht der erfindungsgemäßen Anschlussklemme mit geöffnetem Isolierstoffgehäuse 10 in einer Klemmstellung gezeigt, in der ein über eine Leiterführung 11 eingeführter - in der Zeichnung nicht gezeigter - elektrischer Leiter mittels der in Figur 3 gezeigten Leiterklemmeinrichtung 12 einerseits elektrisch kontaktiert und anderseits durch Klemmung unter Federwirkung gehalten wird. Die Leiterklemmeinrichtung 12 ist mittels eines Betätigungselements 13 bedienbar ausgebildet und eingerichtet. Hierzu ist das Betätigungselement 13 um eine Achse schwenkbar in dem Isolierstoffgehäuse 10 gelagert. Das Betätigungselement 13 umfasst beispielsweise eine Bohrung 14, durch die eine - in der Zeichnung nicht gezeigte - Welle des Isolierstoffgehäuses 10 geführt ist, die so die vorgenannte Achse bildet.In the figure 1 is a perspective view of the connection terminal according to the invention with the insulating material housing 10 open, in a clamping position, in which an electrical conductor—not shown in the drawing—inserted via a conductor guide 11 is connected by means of the in figure 3 shown conductor clamping device 12 on the one hand electrically contacted and on the other hand held by clamping under spring action. The conductor clamping device 12 is designed and set up so that it can be operated by means of an actuating element 13 . For this purpose, the actuating element 13 is mounted in the insulating material housing 10 such that it can be pivoted about an axis. The actuating element 13 comprises, for example, a bore 14 through which a shaft of the insulating material housing 10 is guided, which thus forms the aforementioned axis--not shown in the drawing.

Wie der perspektivischen Detailansicht der Leiterklemmeinrichtung 12 gemäß der Figur 3 zu entnehmen ist, umfasst die Leiterklemmeinrichtung 12 eine Klemmstelle 15 für den elektrischen Leiter. Die Klemmstelle 15 umfasst hierzu ein Kontaktelement 16, das ortsfest in dem Isolierstoffgehäuse 10 angeordnet ist. Eine Klemmfeder 17, die federvorgespannt ist, und daher selbsttätig bestrebt ist, ihren freien Schenkel 17 in Richtung Kontaktelement 16 zu stellen, bilden zusammen die Klemmstelle 15. Die Klemmfeder 17 ist mittels des Betätigungselements 13 zwischen der in den Figuren 1 und 3 gezeigten Klemmstellung und einer in den jeweiligen Figuren 2 und 4 gezeigten Offenstellung bewegbar in dem Isolierstoffgehäuse 10 angeordnet.As the perspective detailed view of the conductor clamping device 12 according to figure 3 can be seen, the conductor clamping device 12 includes a terminal point 15 for the electrical conductor. For this purpose, the clamping point 15 comprises a contact element 16 which is arranged in a stationary manner in the insulating housing 10 . A clamping spring 17, which is spring-biased, and therefore automatically strives to provide its free leg 17 in the direction of contact element 16, together form the terminal point 15. The clamping spring 17 is by means of the actuating element 13 between the in the figures 1 and 3 clamping position shown and one in the respective figures 2 and 4 shown open position movably arranged in the insulating housing 10.

Wie in den Figuren 1 bis 4 gezeigt, ist der freie Schenkel 18 der Klemmfeder 17 über ein Verbindungselement 19 derart angelenkt, dass der freie Schenkel 18 zwischen der Offen- und Klemmstellung bewegbar in dem Isolierstoffgehäuse 10 angeordnet ist. Mittels einer Schwenkbewegung des Betätigungselements 13 in eine erste Richtung wird die in den Figuren 1 und 3 gezeigte Leiterklemmeinrichtung 12 aus der Klemmstellung in die in den Figuren 2 und 4 gezeigte Offenstellung überführt, wobei die Klemmfeder 17 über das Verbindungselement 19 mit einer Zugkraft, die entgegen der rückstellenden Federkraft wirkt, beaufschlagt wird. In der in den Figuren 1 bis 4 beispielhaft gezeigten Ausführungsform bewirkt eine Schwenkbewegung gegen den Uhrzeigersinn das Überführen in die Offenstellung, während ein Schwenken mit dem Uhrzeigersinn, also in eine der ersten Richtung entgegengesetzte Richtung, die Überführung aus der Offenstellung in die Klemmstellung bewirkt.As in the Figures 1 to 4 shown, the free leg 18 of the clamping spring 17 is articulated via a connecting element 19 in such a way that the free leg 18 is arranged in the insulating material housing 10 so that it can move between the open and clamping positions. By means of a pivoting movement of the actuating element 13 in a first direction in the figures 1 and 3 shown conductor clamping device 12 from the clamping position in the figures 2 and 4 shown open position, wherein the clamping spring 17 is applied via the connecting element 19 with a tensile force which acts against the restoring spring force. In the in the Figures 1 to 4 embodiment shown by way of example, a counterclockwise pivoting movement brings about the transfer into the open position, while a clockwise pivoting, ie in a direction opposite to the first direction, causes the transfer from the open position into the clamping position.

Das Betätigungselement 13 umfasst ein Anlenkelement 20, das zur Anlenkung des Verbindungselements 19 ausgebildet ist und von dessen Achsmitte 21 radial beabstandet angeordnet ist. Das Anlenkelement 20 ist dabei derart an dem Betätigungselement 13 angeordnet, dass der von dem Anlenkelement 20 und der Achsmitte 21 gebildete Hebelarm in der Offenstellung zumindest im Wesentlichen parallel zur Richtung der mittels des Verbindungselements 19 auf den freien Schenkel 18 der Klemmfeder 17 wirkenden Zugkraft ist. Zumindest im Wesentlichen parallel im Sinne der Erfindung heißt, entweder parallel oder nahezu parallel, d.h. mit einer Abweichung von der Parallelen um maximal ± 10°. Der Hebelarm bezeichnet die Strecke zwischen dem Anlenkelement 20 und der Achsmitte.The actuating element 13 comprises an articulation element 20 which is designed for articulating the connecting element 19 and is arranged at a radial distance from the center of the axis 21 . The articulation element 20 is arranged on the actuating element 13 in such a way that in the open position the lever arm formed by the articulation element 20 and the axis center 21 is at least essentially parallel to the direction of the tensile force acting on the free leg 18 of the clamping spring 17 by means of the connecting element 19. At least essentially parallel within the meaning of the invention means either parallel or almost parallel, i.e. with a maximum deviation from parallel of ±10°. The lever arm denotes the distance between the articulation element 20 and the center of the axis.

Wird das Betätigungselement aus der Klemmstellung in die erste Richtung verschwenkt, bewirkt der rechtwinklig zu dem Hebelarm wirkende Anteil der Zugkraft ein Rückstellmoment. Je weiter das Betätigungselement 13 der Offenstellung entgegenkommt, umso mehr wird der Hebelarm in Richtung der Zugkraft ausgerichtet, so dass das Rückstellmoment, welches auf das Betätigungselement 13 wirkt, immer kleiner wird. Ist die Offenstellung erreicht, zeigen der Hebelarm und die Zugkraft in dieselbe Richtung bzw. in annähernd dieselbe Richtung, so dass das Rückstellmoment verschwindet bzw. minimal wird. Auf diese Weise kann das Betätigungselement 13 ohne Einwirkung äußerer Kräfte in der Offenstellung gehalten werden. So kann auf besonders einfache und komfortable Art und Weise, insbesondere einhändig, ein elektrischer Leiter in die Anschlussklemme bzw. deren Leitereinführung 11 eingeführt werden.If the actuating element is pivoted out of the clamping position in the first direction, the component of the tensile force acting at right angles to the lever arm causes a restoring moment. The further the actuating element 13 approaches the open position, the more the lever arm is aligned in the direction of the tensile force, so that the restoring moment acting on the actuating element 13 becomes smaller and smaller. When the open position is reached, the lever arm and the tensile force point in the same direction or in approximately the same direction, so that the restoring moment disappears or becomes minimal. In this way, the actuating element 13 can be held in the open position without the action of external forces. An electrical conductor can thus be inserted into the connection terminal or its conductor entry 11 in a particularly simple and convenient manner, in particular with one hand.

Anschließend wird das Betätigungselement 13 in die vorgenannte entgegengesetzte Richtung verschwenkt. Das Kontaktelement 16 setzt auf dem elektrischen Leiter auf, der nun über die rückstellende Federkraft der Klemmfeder 17 gegen das Kontaktelement 16 geklemmt und zugleich elektrisch kontaktiert wird. In diesem Moment kommt das Verbindungselement 19 von dem Anlenkelement 20 frei und kann im Prinzip kräftefrei in die ursprüngliche Klemmstellung vollständig zurückbewegt werden.Subsequently, the actuating element 13 is pivoted in the aforementioned opposite direction. The contact element 16 is placed on the electrical conductor, which is now clamped against the contact element 16 by the restoring spring force of the clamping spring 17 and at the same time is electrically contacted. At this moment, the connecting element 19 is released from the articulation element 20 and can, in principle, be moved completely back into the original clamping position without any force.

Die in den Figuren 1 bis 4 dargestellte Anschlussklemme ist als Leiterplattenanschlussklemme ausgeführt und umfasst Lötanschlussstifte 22, die elektrisch leitend mit dem Kontaktelement 16 verbunden sind. Vorteilhafter Weise sind das Kontaktelement 16 und die Lötanschlussstifte 22 einstückig ausgebildet. Anstelle der Lötanschlussstifte 22 können andere Anschlusselemente vorgesehen sein, beispielsweise bekannte Lötkontaktelemente, die eine Montage der Anschlussklemme auf der Leiterplattenoberfläche, insbesondere durch Löten, erlauben.The in the Figures 1 to 4 The terminal shown is designed as a printed circuit board terminal and includes soldering connection pins 22 which are electrically conductively connected to the contact element 16 . The contact element 16 and the solder connection pins 22 are advantageously formed in one piece. Instead of the solder connection pins 22, other connection elements can be provided, for example known solder contact elements that allow the connection terminal to be mounted on the circuit board surface, in particular by soldering.

Bevorzugt umfasst das Verbindungselement 19 einen flächig ausgebildeten Anlagebereich 23. Der Anlagebereich 23 übergreift, wie in den Figuren 1 bis 4 ersichtlich, das Anlenkelement 20. Das Anlenkelement 20 ist daher relativ zu dem Anlagebereich 23 verschiebbar eingerichtet. Das Anlenkelement 20 kann so einerseits mit dem Anlagebereich 23 zur Übertragung der Zugkraft in Kontakt kommen und diese in Zugkraftrichtung übertragen, ist jedoch hinsichtlich einer seitlichen Bewegung frei.The connecting element 19 preferably comprises a planar contact area 23. The contact area 23 overlaps, as in FIGS Figures 1 to 4 visible, the articulation element 20. The articulation element 20 is therefore configured to be displaceable relative to the contact area 23. The articulation element 20 can thus on the one hand come into contact with the contact area 23 for transmitting the tensile force and transmit it in the direction of the tensile force, but is free to move laterally.

Weiter bevorzugt ist der flächige Anlagebereich 23 rechtwinklig zu einem Verbindungsabschnitt 24 des Verbindungselements 19 angeordnet. Mit anderen Worten bilden der Anlagebereich 23 und der Verbindungsabschnitt 24 ein L-förmiges Profil. Besonders bevorzugt ist das gesamte Verbindungselement 19, wie in den Figuren 1 bis 4 gezeigt, als U-profilförmige Klammer ausgebildet.More preferably, the flat contact area 23 is arranged at right angles to a connecting section 24 of the connecting element 19 . In other words, the contact area 23 and the connecting section 24 form an L-shaped profile. The entire connecting element 19, as shown in FIGS Figures 1 to 4 shown, designed as a U-profile bracket.

Vorteilhafter Weise ist Verbindungsabschnitt 24 abgewinkelt. Besonders bevorzugt ist der Verbindungsabschnitt 24, wie in den Figuren 1 bis 4 gezeigt, derart abgewinkelt, dass der Anlagebereich 23 in der Klemmstellung ohne eingeführten elektrischen Leiter horizontal bzw. parallel zum Gehäuseboden des Isolierstoffgehäuses ausgerichtet ist.Connecting section 24 is advantageously angled. Particularly preferred is the connecting portion 24, as shown in FIGS Figures 1 to 4 shown, angled in such a way that the contact area 23 is aligned horizontally or parallel to the housing base of the insulating material housing in the clamped position without an inserted electrical conductor.

Besonders bevorzugt umfasst das Betätigungselement 13 einen zum Bedienen der Leiterklemmeinrichtung 11 eingerichteten Bedienhebel 25, wobei der Bedienhebel 25 in der Klemmstellung mit seiner Unterseite 26 auf einem Teilbereich 27 des Isolierstoffgehäuses 10 oberhalb der Klemmstelle 15 aufliegt.Particularly preferably, the actuating element 13 comprises an operating lever 25 designed to operate the conductor clamping device 11, the operating lever 25 resting with its underside 26 on a partial area 27 of the insulating material housing 10 above the clamping point 15 in the clamping position.

Vorteilhafter Weise ist das Anlenkelement 20 derart an dem Betätigungselement 13 angeordnet, dass das Anlenkelement 20 in der Klemmstellung jedenfalls unterhalb der Achsmitte 21 positioniert ist. Die Position des Anlenkelements 20 liegt folglich zwischen der Achsmitte 21 und dem freien Schenkel 18 der Klemmfeder 17.The articulation element 20 is advantageously arranged on the actuating element 13 in such a way that the articulation element 20 is positioned below the axis center 21 in any case in the clamped position. The position of the articulation element 20 is consequently between the center of the axis 21 and the free leg 18 of the clamping spring 17.

Weiter bevorzugt ist der Schwenkbereich des Betätigungselements 13 zwischen der Klemmstellung und der Offenstellung mindestens so groß gewählt, dass das Anlenkelement 20 in der Klemmstellung jedenfalls oberhalb der Achsmitte 21 positioniert ist. Der Schwenkbereich umfasst daher mindestens einen Winkel größer 90°.More preferably, the pivoting range of the actuating element 13 between the clamped position and the open position is selected to be at least large enough for the articulation element 20 to be positioned above the center of the axis 21 in the clamped position. The pivoting range therefore includes at least an angle greater than 90°.

Das Anlenkelement 20 ist vorteilhafter Weise stirnseitig vorspringend ausgebildet. Weiter bevorzugt ist die Stirnseite 28 des Betätigungselements 13 selbst bezüglich einer Seitenfläche 29 des Betätigungselements zurückspringend ausgebildet. Mit anderen Worten weist das Betätigungselement vorteilhafter Weise eine kreisrunde Ausnehmung 30 auf, so dass die Stirnseite 28 gegenüber der Seitenfläche 29 nach hinten versetzt ist. Die Höhe des Anlenkelements 20 ausgehend von der Stirnseite ist in diesem Fall insbesondere höchstens so groß gewählt, dass diese die Seitenfläche 29 nicht über die Ausnehmung 30 hinaus überragt.The articulation element 20 is advantageously designed to project at the front. More preferably, the end face 28 of the actuating element 13 itself is recessed with respect to a side surface 29 of the actuating element. In other words, the actuating element advantageously has a circular recess 30 so that the end face 28 is offset to the rear in relation to the side face 29 . In this case, the height of the articulation element 20 , starting from the end face, is chosen to be at most so large that it does not protrude beyond the side face 29 beyond the recess 30 .

Bevorzugt ist das Anlenkelement 20 als Doppelzapfen ausgebildet, die jeweils separat oder einstückig ausgebildet sein können. Im Fall einer einstückigen Ausbildung weisen die Doppelzapfen vorzugsweise das Profil einer liegenden Acht auf. Einerseits erhöhen die Doppelzapfen die Gesamtstabilität und anderseits bewirkt der Doppelzapfen eine verbesserte Selbsthaltung des Betätigungselements 13 in der Offenstellung.The articulation element 20 is preferably designed as a double pin, which can each be designed separately or in one piece. In the case of a one-piece design, the double pivots preferably have the profile of a horizontal eight. On the one hand, the double pins increase the overall stability and, on the other hand, the double pins improve self-retention of the actuating element 13 in the open position.

Eine weitere vorteilhafte Ausführungsform der Erfindung ist in den Figuren 5 und 6 gezeigt. Während in der Figur 5 eine perspektivische Ansicht einer Mehrfachanschlussklemme zur Leiterplattenmontage mit horizontaler Leitereinführungen 11 gezeigt ist, zeigt Figur 6 eine Mehrfachanschlussklemme mit vertikalen Leitereinführungen 11. Der Aufbau der gezeigten Mehrfachanschlussklemmen entspricht grundsätzlich der zuvor beschriebenen und im Zusammenhang mit den Figuren 1 bis 4 erläuterten erfindungsgemäßen Anschlussklemme, mit dem Unterschied, dass in dem Isolierstoffgehäuse jeweils mehrere der Leiterklemmeinrichtungen 12 angeordnet sind.Another advantageous embodiment of the invention is in the figures 5 and 6 shown. while in the figure 5 Figure 12 shows a perspective view of a PCB mount multiple terminal block with horizontal wire entries 11 figure 6 a multiple terminal block with vertical conductor entries 11. The structure of the shown Multiple connection terminals basically corresponds to that described above and in connection with the Figures 1 to 4 explained connection terminal according to the invention, with the difference that in the insulating housing several of the conductor clamping devices 12 are arranged.

Gemäß einer weiteren Ausführungsform ist vorgesehen, dass die Anschlussklemmen als Stecker ausgebildet sind. Eine perspektivische Ansicht eines solchen Anschlusssteckers ist in Figur 7 gezeigt. Der Anschlussstecker ist vorzugsweise als Mehrfachanschlussklemme ausgeführt und weist jeweils horizontale Leitereinführungen 11 auf. Alternativ ist der gezeigte Mehrfachanschlussstecker, wie in Figur 8 abgebildet, als Mehrfachanschlussklemme mit vertikalen Leitereinführungen 11 ausgebildet. Die Kontaktelement 16 sind jeweils als Steckkontaktelemente 31 ausgebildet. Zur Vermeidung von Wiederholungen wird hinsichtlich der Leiterklemmeinrichtungen 12 auf die obigen Ausführungen verwiesen.According to a further embodiment, it is provided that the connection terminals are designed as plugs. A perspective view of such a connector plug is shown in figure 7 shown. The connector plug is preferably designed as a multiple connection terminal and has horizontal conductor entries 11 in each case. Alternatively, the multi-port plug shown is as shown in figure 8 shown, designed as a multiple connection terminal with vertical conductor entries 11. The contact element 16 are each designed as plug-in contact elements 31 . To avoid repetition, reference is made to the above explanations with regard to the conductor clamping devices 12 .

BezugszeichenlisteReference List

1010
Isolierstoffgehäuseinsulating housing
1111
Leitereinführungconductor entry
1212
Leiterklemmeinrichungladder clamping device
1313
Betätigungselementactuator
1414
Bohrungdrilling
1515
Klemmstelleclamping point
1616
Kontaktelementcontact element
1717
Klemmfederclamping spring
1818
freier Schenkelfree thigh
1919
Verbindungselementfastener
2020
Anlenkelementarticulation element
2121
Achsmitteaxle centre
2222
Lötanschlussstiftsolder pin
2323
Anlagebereichinvestment area
2424
Verbindungsabschnittconnection section
2525
Bedienhebeloperating lever
2626
Unterseite des Bedienhebelsunderside of the control lever
2727
Teilbereichsubarea
2828
Stirnseiteface
2929
Seitenflächeside face
3030
Ausnehmung (kreisrund)recess (circular)
3131
Steckkontaktelementplug contact element

Claims (8)

  1. Connection terminal for connecting an electrical conductor, comprising
    an insulating material housing (10) having at least one conductor clamping device (12) which is designed such it can be operated by a respective operating element (13) which is mounted in the insulating material housing (10) pivotably about a shaft, wherein
    the conductor clamping device (12) comprises a clamping point (15) for the electrical conductor, which clamping point is formed by a contact element (16) arranged fixed in position in the insulating material housing (10) and a clamping spring (17) arranged movably between an open position and a clamping position in the insulating material housing (10) by means of the operating element (13) by way of a free limb (18) of the clamping spring (17) being connected in an articulated manner to the operating element (13) via a connecting element (19), so that the clamping spring (17) is moved to the open position with application of a tensile force via the connecting element (19) by means of a pivoting movement of the operating element (13) in a first direction and to the clamping position by means of a pivoting movement opposite to the first direction, wherein
    the operating element (13) comprises an articulation element (20) radially spaced apart from the shaft centre (21) of the said operating element and designed for connection of the connecting element (19) in an articulated manner,
    wherein the articulation element (20) is arranged on the operating element (13) in such a way that the lever arm formed by the articulation element (20) and the shaft centre (21), in the open position, is oriented at least substantially parallel to the direction of the tensile force acting on the free limb (18) of the clamping spring (17) by means of the connecting element (19), so that the lever arm formed by the articulation element (20) and the shaft centre (21) in the open position differs from the parallel by an angular value of less than 10°, characterized in that the connecting element (19) comprises a flat support region (23) which engages over the articulation element (20), so that the articulation element (20) is formed displaceably relative to the support region (23), wherein the flat support region (23) is arranged at a right angle to a connecting section (24) of the connecting element (19).
  2. Connection terminal according to Claim 1, characterized in that the connecting section (24) is angled.
  3. Connection terminal according to Claim 1 or 2, characterized in that the operating element (13) comprises an operator control lever (25) formed for operating the conductor clamping device (12), wherein the operator control lever (25), with its bottom side (26) on a subregion (27) of the insulating material housing (10), is formed horizontally above the clamping point (15) in the clamping position.
  4. Connection terminal according to one of Claims 1 to 3, characterized in that the articulation element (20) is arranged on the operating element (13) in such a way that the articulation element (20) is at least positioned below the shaft centre (21), specifically between the shaft centre (21) and the free limb (18) of the clamping spring (17), in the clamping position.
  5. Connection terminal according to Claim 4, characterized in that the pivot region of the operating element (13) between the clamping position and the open position is selected to be at least large enough that the articulation element (20) is at least positioned above the shaft centre (21) in the clamping position.
  6. Connection terminal according to one of Claims 1 to 5, characterized in that the articulation element (20) is designed so as to project at the end side.
  7. Connection terminal according to Claim 6, characterized in that the articulation element (20) is in the form of a double pin.
  8. Connection terminal according to Claim 7, characterized in that the double pin has the profile of a figure of eight on its side.
EP16767208.8A 2015-09-16 2016-09-14 Terminal clamp for connecting an electrical conductor Active EP3350881B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015115612.1A DE102015115612A1 (en) 2015-09-16 2015-09-16 Terminal for connecting an electrical conductor
PCT/EP2016/071642 WO2017046129A1 (en) 2015-09-16 2016-09-14 Terminal clamp for connecting an electrical conductor

Publications (2)

Publication Number Publication Date
EP3350881A1 EP3350881A1 (en) 2018-07-25
EP3350881B1 true EP3350881B1 (en) 2022-07-20

Family

ID=56958901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16767208.8A Active EP3350881B1 (en) 2015-09-16 2016-09-14 Terminal clamp for connecting an electrical conductor

Country Status (5)

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US (1) US10283880B2 (en)
EP (1) EP3350881B1 (en)
CN (1) CN108028472B (en)
DE (1) DE102015115612A1 (en)
WO (1) WO2017046129A1 (en)

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Also Published As

Publication number Publication date
US10283880B2 (en) 2019-05-07
EP3350881A1 (en) 2018-07-25
CN108028472B (en) 2020-03-06
DE102015115612A1 (en) 2017-03-16
CN108028472A (en) 2018-05-11
US20180248276A1 (en) 2018-08-30
WO2017046129A1 (en) 2017-03-23

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