EP3504756B1 - Terminal - Google Patents

Terminal Download PDF

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Publication number
EP3504756B1
EP3504756B1 EP17754344.4A EP17754344A EP3504756B1 EP 3504756 B1 EP3504756 B1 EP 3504756B1 EP 17754344 A EP17754344 A EP 17754344A EP 3504756 B1 EP3504756 B1 EP 3504756B1
Authority
EP
European Patent Office
Prior art keywords
clamping
leg
actuating
limb
clamping spring
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
EP17754344.4A
Other languages
German (de)
French (fr)
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EP3504756A1 (en
Inventor
Markus Sonderer
Andreas Schrader
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
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.)
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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 EP3504756A1 publication Critical patent/EP3504756A1/en
Application granted granted Critical
Publication of EP3504756B1 publication Critical patent/EP3504756B1/en
Active legal-status Critical Current
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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
    • H01R4/48—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

Definitions

  • the invention relates to a connection terminal for connecting an electrical conductor, which has a housing, a current bar, a clamping spring having a holding limb and a clamping limb, the conductor being able to be clamped against the current bar by means of the clamping limb, and a pivotably mounted actuating element for actuating the clamping spring.
  • the actuating element has an axle body about which the actuating element can be pivoted, wherein a receiving device is arranged on the holding leg of the clamping spring, in which the axle body is rotatably mounted.
  • a lever-operated connection terminal which has a clamping spring designed as a torsion spring for clamping an electrical conductor inserted into the connection terminal against a current bar.
  • the actuating element for actuating the clamping spring has an axis of rotation, which is arranged transversely to the conductor insertion direction in an associated conductor insertion opening or in the extension of the conductor insertion opening that continues in the conductor insertion direction to the clamping point.
  • the aim is to ensure that the clamping spring is actuated relatively close to the axis of rotation of the actuating element, which is intended to reduce the leverage forces acting on the housing of the connection terminal.
  • the DE 10 2012 110 759 A1 discloses a spring-loaded terminal connection with a busbar, a clamping spring in the form of a cage tension spring and an actuating element which is movably mounted to act on the actuating section of the clamping spring such that a terminal point can be opened and closed.
  • a bearing arm extends from the direction of the busbar through a slot in the clamping section and/or in the actuating section of the clamping spring.
  • the section of the bearing arm which extends through the slot is arranged in an area between the side edges of the clamping spring and carries the actuating element.
  • an electrical connection element comprising an operating lever, at least one spring leaf of the cage type, the leaf forming a loop of triangular progression at the rounded angles of which the both end portions are aligned exactly perpendicular to each other, and an electrically conductive clamp on which the first end portion of the blade is mounted, the operating lever of the blade being mechanically connected to the clamp, which includes means for guiding the operating lever allowing it to be positioned continuously to keep in contact with the leaf spring, which corresponds to the position of this latter relative to the clamp, the lever resting on the culmination portion of the leaf spring under no stress.
  • the spring clamp connection has a busbar section, a clamping spring and an actuating element.
  • the actuating element is in engagement with at least one associated clamping spring and is movably mounted in the insulating material housing.
  • the insulating housing has a recess with at least one recess side wall section. The actuating element is rotatably accommodated in the recess.
  • the actuating element On its outer circumference, the actuating element has at least two spaced-apart, protruding actuating lugs, which, starting from a rest position, in which the clamping point is closed, via rotation when the actuating element is actuated by applying an actuating force to at least one of the actuating lugs, to an open position in which the terminal point is open for inserting or removing an electrical conductor, adjoin a recess side wall section.
  • the EP 1 641 078 A2 discloses an electrical connection terminal with a clamping spring and with a metal part, the clamping spring and the metal part being arranged in an insulating housing having a conductor insertion opening for inserting an electrical conductor to be connected.
  • the clamping spring has a clamping leg and a contact leg.
  • the clamping leg and the metal part form a spring clamp connection for the electrical conductor to be connected.
  • the contact leg of the clamping spring is essentially perpendicular to the direction of insertion of the electrical conductor to be connected is arranged and a recess for inserting the electrical conductor to be connected is formed in the contact leg.
  • the clamping leg and the contact leg of the clamping spring are bent towards one another in such a way that the end of the clamping leg extends through the recess.
  • the metal part has at least one fastening section which can be inserted through the recess in the opposite direction to the insertion direction of the electrical conductor to be connected, so that the clamping spring with its recess can be pushed onto the metal part.
  • the window allows the thigh to deflect towards the support leg and between the support leg and the thigh there is a support element which limits deflection and consists of a leg section bent or angled towards the thigh at the end of the support leg.
  • a straight tongue is cut out of the bent leg section and is passed through the window in the front leg while resting on the conductor rail.
  • the object of the invention is to provide a connection terminal by means of which the forces acting on the housing when a conductor is clamped can be further reduced.
  • connection terminal is characterized in that the holding leg has an opening through which a free end of the current bar is passed and through which the conductor to be connected can be passed, wherein the receiving device is arranged on the holding leg above the opening and above the current bar guided through the opening.
  • the actuating element is mounted directly on the holding leg of the clamping spring, which, in contrast to the clamping leg of the clamping spring, is positioned in a fixed position in the connection terminal, in particular the housing of the connection terminal.
  • the holding leg preferably rests flat on the housing, in particular flat on an inner wall delimiting an interior space of the housing.
  • the actuating element is mounted with its axle body on the holding leg of the clamping spring, so that the axis of rotation of the actuating element running through the axle body is positioned in the region of the clamping spring.
  • a receiving device is arranged on the clamping spring, in which the axle body is rotatably positioned.
  • the receiving device is preferably formed directly on the retaining leg of the clamping spring.
  • the receiving device is preferably formed in one piece with the retaining leg, so that the receiving device is bent out of the metal strip of the clamping spring.
  • the receiving device is U-shaped and at least partially encloses the axle body.
  • the shape of the receiving device is preferably adapted to the outer contour of the axle body, so that optimal guidance of the axle body within the receiving device can be achieved during a pivoting movement of the actuating element.
  • the clamping spring is designed in such a way that the holding leg has an opening through which a free end of the current bar is passed and through which the conductor to be connected can be passed.
  • the opening is preferably designed as a window-like opening and is used both for passing through the current bar and for passing through the conductor to be connected.
  • the receiving device is arranged above the opening and above the current bar guided through the opening on the holding leg of the clamping spring. This positioning of the receiving device and the current bar and the opening relative to one another allows a space-saving arrangement of the individual parts within the terminal to be achieved, as a result of which the overall size of the terminal can be reduced.
  • connection terminal can be further reduced in that the clamping leg is integrally formed on a first free end of the retaining leg and that the receiving device is arranged on a second free end of the retaining leg opposite the first free end.
  • the opening in the holding leg is formed between the two free ends of the holding leg.
  • the arrangement of the clamping limb on the holding limb and the arrangement of the receiving device on the holding limb is preferably provided on one and the same longitudinal side surface of the holding limb, namely on the longitudinal side surface which points in the direction of the interior of the housing and thus the interior of the connecting terminal in which the connection or clamp the conductor against the current bar.
  • the clamping leg of the clamping spring is preferably shaped in such a way that it has a contact area, by means of which the clamping leg rests against a longitudinal side surface of the holding leg, so that when the clamping leg moves into an open position and into a closed position of the clamping spring, it moves along the longitudinal side surface of the holding leg is movable.
  • a part of the clamping leg can thus slide along the holding leg, so that a defined guidance of the clamping leg can be formed by means of the holding leg.
  • the clamping leg is not formed in a straight line, but that the clamping leg has an S-shape. Due to the S-shape of the clamping leg, the clamping force to be applied by means of the clamping leg can be increased without increasing the overall dimensions, in particular the width, of the clamping spring. In addition, the spring effect of the clamping leg can be improved.
  • the clamping leg can have a first deflection section connected to the holding leg, a second deflection section connected to the first deflection section via a flexible joint, and a clamping section connected to the second deflection section via the contact area.
  • the two deflection sections and also the clamping section are preferably formed in a straight line, whereas the bending joint and the contact area are preferably formed in a curved manner.
  • the two deflection sections preferably have the same length, whereas the clamping section preferably has a significantly shorter length.
  • the clamping section has a length which is approximately one third of the length of a deflection section.
  • the two deflection sections, together with the holding leg preferably form a delta shape.
  • the spring effect of the clamping leg is preferably achieved via the two deflection sections, the deflection sections being arranged at a distance from the conductor to be connected. The conductor is connected or clamped via the clamping section of the clamping leg.
  • the actuating element is preferably designed in such a way that it has a first actuating bar and a second actuating bar arranged parallel thereto, by means of which the clamping spring is actuated, the axle body preferably being arranged between the first actuating bar and the second actuating bar.
  • the actuating webs are elongate and extend, starting from the axle body, to the clamping leg of the clamping spring, with the actuating webs pressing the clamping leg by a pivoting movement of the actuating element to actuate the clamping spring and thus exerting a force on it.
  • the actuating webs When the clamping spring is actuated, the actuating webs preferably do not press directly on the clamping section of the clamping leg and thus not on that part of the clamping leg which is in direct contact with the clamped conductor, but rather the actuating webs are preferably in operative connection with the second deflection section of the clamping spring to actuate the clamping spring Clamping spring which is currently not in direct contact with the conductor to be connected.
  • the connection terminal 100 has a housing 10 made of an insulating material, the housing 10 having a conductor insertion opening 11 for inserting the conductor to be connected into the connection terminal 100 .
  • a current bar 12 is arranged in the housing 10, against which the conductor to be connected can be clamped in an electrically contacting manner.
  • the connection terminal 100 has a clamping spring 13 which is arranged in an interior space 14 of the housing 10 .
  • the clamping spring 13 has a holding leg 15 and a clamping leg 17 connected to the holding leg 15 via a bent section 16 .
  • the holding leg 15 bears at least partially flat against an inner wall 18 of the housing 10 that delimits the interior space 14 of the housing 10 .
  • the holding leg 15 is thus arranged in a fixed position in the housing 10 .
  • the clamping leg 17 extends into the interior 14 of the housing 10 , the clamping leg 17 being resiliently movable in the interior 14 of the housing 10 .
  • the conductor is clamped against the current bar 12 by means of the clamping leg 17.
  • the connection terminal 100 has an actuating element 19 which is mounted in a pivotable manner.
  • the actuating element 19 has an axle body 20 in the form of a shaft, the axis of rotation of the actuating element 19 running through the axle body 20 so that the actuating element 19 can be pivoted about the axle body 20 .
  • the axle body 20 is mounted in a receiving device 21 which is arranged on the holding leg 15 of the clamping spring 13 .
  • the axle body 20 is thus mounted on the clamping spring 13 and not directly on the housing 10.
  • the receiving device 21 is formed in one piece with the clamping spring 13 in that the receiving device 21 is bent out of the strip material of the clamping spring 13 .
  • the receiving device 21 has a slightly smaller width than the retaining leg 15.
  • the receiving device 21 is curved in a U-shape or a C-shape, so that the receiving device 21 at least partially encloses the axle body 20, which has a circular cross-section. The contour of the receiving device 21 is thus adapted to the contour of the axle body 20 .
  • a window-like opening 22 is formed in the holding leg 15 below the connection of the receiving device 21 to the holding leg 15, through which a free end 37 of the current bar 12 is guided, as in FIGS Figures 1 - 3 can be seen, and through which the conductor to be connected can be passed.
  • the conductor introduced through the opening 22 into the interior 14 of the housing 10 is clamped by means of the clamping leg 17 of the clamping spring 13 against a first side surface 23 of the current bar 12 directed towards the interior 14 of the housing 10 .
  • the current bar 12 rests on the receiving device 21 , in particular on an outer surface of the receiving device 21 , with a second side face 24 opposite the first side face 23 and pointing away from the interior 14 of the housing 10 .
  • the receiving device 21 and the clamping leg 17 of the clamping spring 13 are thus separated from one another by the current bar 12 .
  • the opening 21 in the holding leg 15 is arranged in alignment with the conductor insertion opening 11 in the housing 10 .
  • the receiving device 21 and the clamping leg 18 are arranged on ends 36, 25 of the holding leg 15 spaced apart from one another, so that the greatest possible distance is formed between the receiving device 21 and the clamping leg 18.
  • the clamping leg 17 is formed on a first free end 36 of the holding leg 15 and the receiving device is arranged on a second free end 25 of the holding leg 15 opposite the first free end 36 .
  • the clamping leg 17 has a smaller width than the holding leg 15.
  • the holding leg 15 of the clamping spring 13 is straight.
  • the clamping leg 17 of the clamping spring 13, however, is not straight, but the clamping leg 17 is divided into several sections, which are each arranged at an angle between 10 ° and 80 ° to each other.
  • the clamping leg 17 thus has an S-shape.
  • the clamping leg 17 is shaped, among other things, in such a way that it has a contact area 26, by means of which the clamping leg 17 rests against a longitudinal side surface 27 of the holding leg 15, which is directed towards the interior space 14 of the housing 10, so that when the clamping leg 17 moves into an open position and when the clamping spring 13 is in a closed position, it is displaced along the longitudinal side surface 27 .
  • This abutment area 26 has an arc shape.
  • the clamping leg 17 also has a first deflection section 28 connected to the holding leg 15, a second deflection section 30 connected to the first deflection section 28 via a flexible joint 29, and a clamping section 31 connected to the second deflection section 30 via the contact area 26 .
  • the spring effect of the clamping leg 17 is achieved via the two deflection sections 28, 30, which can be moved relative to one another via the flexible joint 29.
  • the two deflection sections 28, 30 have approximately the same length. Together with part of the holding section 15, the deflection sections 28, 30 form a delta shape.
  • a longitudinal slot 32 is formed in the second deflection section 30 and extends over the entire length of the deflection section 30 .
  • the spring action of the clamping leg 17 can be increased by providing the longitudinal slot 32 in the deflection section 30 .
  • the conductor is clamped by direct contact of the clamping section 31 of the clamp leg 17 with the conductor.
  • the clamping section 31 has a significantly shorter length than the deflection sections 28, 30.
  • the length of the clamping section 31 is less than one third of the length of one of the deflection sections 28, 30.
  • the width of the clamping leg 17 is greater than the two deflection sections 28, 30, the Flexible joint 29 and the contact area 26 are designed to be constant, whereas the clamping section 31 has a smaller width and is therefore narrower than the two deflection sections 28, 30, the flexible joint 29 and the contact area 26.
  • the actuating element 19 has a first actuating bar 33 and a second actuating bar 34 arranged parallel thereto, as in particular in 2 can be seen, the axle body 20 being arranged between the first actuating web 33 and the second actuating web 34 .
  • the two actuating webs 33, 34 protrude into the interior 14 of the housing 10.
  • the two actuating bars 33, 34 are each guided past the current bar 12 laterally, so that the current bar 12 is arranged between the two actuating bars 33, 34.
  • the actuating webs 33, 34 thus encompass the current bar 12.
  • the actuating webs 33 , 34 are of such a length that they are operatively connected to the second deflection section 30 of the clamping spring 13 to actuate the clamping spring 13 and are not operatively connected to the clamping section 31 .
  • the actuating webs 33, 34 are moved or shifted along the surface of the second deflection section 30, as shown in FIG 1 and 3 can be seen.
  • the actuating element 19 also has a handle 35, via which an operator of the connection terminal 100 can grip and pivot the actuating element 19.
  • the handle of the operating element 19 protrudes from the housing 10 .
  • the handle 35, the axle body 20 and the actuating webs 33, 34 are integrally connected.
  • reference list terminal block 100 Housing 10 conductor entry hole 11 power bar 12 clamping spring 13 inner space 14 holding leg 15 Curved section 16 clamp legs 17 inner wall 18 actuator 19 axle body 20 recording facility 21 opening 22 First face 23 Second side face 24 Second free end of the holding leg 25 investment area 26 long side face 27 First deflection section 28 bending joint 29 Second deflection section 30 clamping section 31 longitudinal slit 32 First actuation bar 33 Second operating bar 34 Handle 35 First free end of the holding leg 36 Free end of the power bar 37

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Clamps And Clips (AREA)

Description

Die Erfindung betrifft eine Anschlussklemme zum Anschließen eines elektrischen Leiters, welche ein Gehäuse, einen Strombalken, eine einen Halteschenkel und einen Klemmschenkel aufweisende Klemmfeder, wobei mittels des Klemmschenkels der Leiter gegen den Strombalken klemmbar ist, und ein schwenkbeweglich gelagertes Betätigungselement zum Betätigen der Klemmfeder aufweist, wobei das Betätigungselement einen Achskörper aufweist, um welchen das Betätigungselement verschwenkbar ist, wobei an dem Halteschenkel der Klemmfeder eine Aufnahmeeinrichtung angeordnet ist, in welcher der Achskörper drehbar gelagert ist.The invention relates to a connection terminal for connecting an electrical conductor, which has a housing, a current bar, a clamping spring having a holding limb and a clamping limb, the conductor being able to be clamped against the current bar by means of the clamping limb, and a pivotably mounted actuating element for actuating the clamping spring. wherein the actuating element has an axle body about which the actuating element can be pivoted, wherein a receiving device is arranged on the holding leg of the clamping spring, in which the axle body is rotatably mounted.

Aus der DE 10 2011 056 410 A1 ist eine hebelbedienbare Anschlussklemme bekannt, welche eine als Schenkelfeder ausgebildete Klemmfeder zum Klemmen eines in die Anschlussklemme eingeführten elektrischen Leiters gegen einen Strombalken aufweist. Das Betätigungselement zum Betätigen der Klemmfeder weist eine Drehachse auf, welche quer zur Leitereinführungsrichtung in einer zugeordneten Leitereinführungsöffnung oder der in Leitereinführungsrichtung zur Klemmstelle weiterführenden Verlängerung der Leitereinführungsöffnung angeordnet ist. Durch das Verlegen der Drehachse in den Bereich der Klemmstelle bzw. in die Flucht der davor liegenden Leitereinführungsöffnung soll erreicht werden, dass die Betätigung der Klemmfeder relativ nah zur Drehachse des Betätigungselement erfolgt, wodurch die auf das Gehäuse der Anschlussklemme wirkenden Hebelkräfte verringert werden sollen.From the DE 10 2011 056 410 A1 a lever-operated connection terminal is known which has a clamping spring designed as a torsion spring for clamping an electrical conductor inserted into the connection terminal against a current bar. The actuating element for actuating the clamping spring has an axis of rotation, which is arranged transversely to the conductor insertion direction in an associated conductor insertion opening or in the extension of the conductor insertion opening that continues in the conductor insertion direction to the clamping point. By relocating the axis of rotation in the area of the clamping point or in line with the conductor entry opening in front of it, the aim is to ensure that the clamping spring is actuated relatively close to the axis of rotation of the actuating element, which is intended to reduce the leverage forces acting on the housing of the connection terminal.

Die DE 10 2012 110 759 A1 offenbart einen Federkraftklemmanschluss mit einer Stromschiene, einer Klemmfeder in Form einer Käfigzugfeder und einem Betätigungselement, das beweglich zur Beaufschlagung des Betätigungsabschnitts der Klemmfeder so gelagert ist, dass eine Klemmstelle geöffnet und geschlossen werden kann. Ein Lagerarm erstreckt sich aus der Richtung der Stromschiene durch einen Schlitz im Klemmabschnitt und/oder im Betätigungsabschnitt der Klemmfeder hindurch. Der sich durch den Schlitz erstreckende Abschnitt des Lagerarms ist in einem Bereich zwischen den Seitenkanten der Klemmfeder angeordnet und trägt das Betätigungselement.The DE 10 2012 110 759 A1 discloses a spring-loaded terminal connection with a busbar, a clamping spring in the form of a cage tension spring and an actuating element which is movably mounted to act on the actuating section of the clamping spring such that a terminal point can be opened and closed. A bearing arm extends from the direction of the busbar through a slot in the clamping section and/or in the actuating section of the clamping spring. The section of the bearing arm which extends through the slot is arranged in an area between the side edges of the clamping spring and carries the actuating element.

In der DE 600 22 061 T2 ist ein elektrisches Verbindungselement beschrieben, welches einen Bedienungshebel, mindestens ein Federblatt vom Käfigtyp, wobei das Blatt eine Schleife von dreieckigem Verlauf an den abgerundeten Winkeln bildet, von denen die beiden Endabschnitte genau senkrecht aufeinander ausgerichtet sind, und eine elektrisch leitende Klemme, auf welcher der erste Endabschnitt des Blattes angebracht ist, umfasst, wobei der Bedienungshebel des Blattes mechanisch mit der Klemme verbunden ist, welche Führungsmittel des Bedienungshebels umfasst, welche erlauben, ihn in ständigem Kontakt mit dem Federblatt zu halten, was der Position dieses letzteren relativ zu der Klemme entspricht, wobei der Hebel bei keiner Beanspruchung auf dem Kulminationsabschnitt des Federblattes aufliegt.In the DE 600 22 061 T2 describes an electrical connection element comprising an operating lever, at least one spring leaf of the cage type, the leaf forming a loop of triangular progression at the rounded angles of which the both end portions are aligned exactly perpendicular to each other, and an electrically conductive clamp on which the first end portion of the blade is mounted, the operating lever of the blade being mechanically connected to the clamp, which includes means for guiding the operating lever allowing it to be positioned continuously to keep in contact with the leaf spring, which corresponds to the position of this latter relative to the clamp, the lever resting on the culmination portion of the leaf spring under no stress.

Aus der DE 10 2012 110 895 A1 ist eine Anschlussklemme zum Anschließen eines elektrischen Leiters mit einem Isolierstoffgehäuse und mit mindestens einem Federkraftklemmanschluss bekannt. Der Federkraftklemmanschluss hat einen Stromschienenabschnitt, eine Klemmfeder und ein Betätigungselement. Ein Klemmabschnitt der Klemmfeder bildet zusammen mit dem Stromschienenabschnitt eine Klemmstelle für einen anzuschließenden elektrischen Leiter. Das Betätigungselement steht zum Öffnen der Klemmstelle im Eingriff mit mindestens einer zugeordneten Klemmfeder und ist beweglich im Isolierstoffgehäuse gelagert. Das Isolierstoffgehäuse hat eine Vertiefung mit mindestens einem Vertiefungsseitenwandabschnitt. Das Betätigungselement ist in der Vertiefung drehbar aufgenommen. Das Betätigungselement hat an seinem Außenumfang mindestens zwei voneinander beabstandete, vorstehende Betätigungsansätze, die ausgehend von einer Ruhestellung, bei der die Klemmstelle geschlossen ist, über die Drehung bei Betätigung des Betätigungselementes durch Beaufschlagen mindestens eines der Betätigungsansätze mit einer Betätigungskraft bis zu einer Offenstellung, bei der die Klemmstelle zum Einführen oder Entnehmen eines elektrischen Leiters geöffnet ist, an einen Vertiefungsseitenwandabschnitt angrenzen.From the DE 10 2012 110 895 A1 discloses a terminal for connecting an electrical conductor with an insulating material housing and with at least one spring-loaded terminal connection. The spring clamp connection has a busbar section, a clamping spring and an actuating element. A clamping section of the clamping spring, together with the busbar section, forms a clamping point for an electrical conductor to be connected. To open the clamping point, the actuating element is in engagement with at least one associated clamping spring and is movably mounted in the insulating material housing. The insulating housing has a recess with at least one recess side wall section. The actuating element is rotatably accommodated in the recess. On its outer circumference, the actuating element has at least two spaced-apart, protruding actuating lugs, which, starting from a rest position, in which the clamping point is closed, via rotation when the actuating element is actuated by applying an actuating force to at least one of the actuating lugs, to an open position in which the terminal point is open for inserting or removing an electrical conductor, adjoin a recess side wall section.

Ferner ist aus der EP 1 622 224 A1 eine entsprechende Anschlussklemme zum Anschließen eines elektrischen Leiters bekannt.Furthermore, from the EP 1 622 224 A1 a corresponding terminal for connecting an electrical conductor is known.

Die EP 1 641 078 A2 offenbart eine elektrische Anschlussklemme mit einer Klemmfeder und mit einem Metallteil, wobei die Klemmfeder und das Metallteil in einem eine Leitereinführungsöffnung zum Einführen eines anzuschließenden elektrischen Leiters aufweisenden Isoliergehäuse angeordnet sind. Die Klemmfeder weist einen Klemmschenkel und einen Anlageschenkel auf. Der Klemmschenkel und das Metallteil bilden einen Federkraftklemmanschluss für den anzuschließenden elektrischen Leiter. Der Anlageschenkel der Klemmfeder ist im Wesentlichen senkrecht zur Einsteckrichtung des anzuschließenden elektrischen Leiters angeordnet und in dem Anlageschenkel ist eine Ausnehmung zum Einstecken des anzuschließenden elektrischen Leiters ausgebildet. Der Klemmschenkel und der Anlageschenkel der Klemmfeder sind derart aufeinander zugebogen, dass sich das Ende des Klemmschenkels durch die Ausnehmung hindurcherstreckt. Das Metallteil weist zumindest einen Befestigungsabschnitt auf, der entgegengesetzt zur Einsteckrichtung des anzuschließenden elektrischen Leiters durch die Ausnehmung einsteckbar ist, so dass die Klemmfeder mit ihrer Ausnehmung auf das Metallteil aufsteckbar ist.The EP 1 641 078 A2 discloses an electrical connection terminal with a clamping spring and with a metal part, the clamping spring and the metal part being arranged in an insulating housing having a conductor insertion opening for inserting an electrical conductor to be connected. The clamping spring has a clamping leg and a contact leg. The clamping leg and the metal part form a spring clamp connection for the electrical conductor to be connected. The contact leg of the clamping spring is essentially perpendicular to the direction of insertion of the electrical conductor to be connected is arranged and a recess for inserting the electrical conductor to be connected is formed in the contact leg. The clamping leg and the contact leg of the clamping spring are bent towards one another in such a way that the end of the clamping leg extends through the recess. The metal part has at least one fastening section which can be inserted through the recess in the opposite direction to the insertion direction of the electrical conductor to be connected, so that the clamping spring with its recess can be pushed onto the metal part.

Weiter zeigt die DE 196 46 103 C1 eine Federkraftklemme mit einer aus einem flachen Metallstreifen gebogenen Klemmfeder, die einen auf eine Stromschiene aufgesetzten Auflagerschenkel sowie daran sich über einen als Biegegelenk fungierenden Bogenabschnitt anschließenden, sich mit Abstand oberhalb des Auflagerschenkels erstreckenden Oberschenkel und ferner einen zum Auflagerschenkel hin zurückgebogenen Frontschenkel mit einem Fenster hat, wobei die Stromschiene durch dieses etwa rechtwinklig zu ihr liegendes Fenster hindurchragt und dessen Unterkante in ungeklemmter Ausgangslage federnd an der Stromschiene anliegt. Ferner gibt das Fenster ein Einfedern des Oberschenkels zum Auflagerschenkel hin frei und zwischen dem Auflagerschenkel und dem Oberschenkel ist ein dessen Einfedern begrenzendes Stützelement angeordnet, welches aus einem zum Oberschenkel hin gebogenen oder abgewinkelten Schenkelabschnitt am Ende des Auflagerschenkels besteht. Aus dem gebogenen Schenkelabschnitt ist eine gerade Zunge freigeschnitten, die auf der Stromschiene aufliegend mit durch das Fenster im Frontschenkel hindurchgeführt ist.Next shows the DE 196 46 103 C1 a spring-loaded terminal with a clamping spring bent from a flat metal strip, which has a support leg placed on a busbar and a leg connected to it via a curved section functioning as a bending joint, extending at a distance above the support leg and also a front leg bent back towards the support leg with a window, the conductor rail protruding through this window, which is approximately at right angles to it, and its lower edge rests resiliently against the conductor rail in the unclamped initial position. Furthermore, the window allows the thigh to deflect towards the support leg and between the support leg and the thigh there is a support element which limits deflection and consists of a leg section bent or angled towards the thigh at the end of the support leg. A straight tongue is cut out of the bent leg section and is passed through the window in the front leg while resting on the conductor rail.

Der Erfindung liegt die Aufgabe zu Grunde, eine Anschlussklemme zur Verfügung zu stellen, mittels welcher die beim Klemmen eines Leiters auf das Gehäuse wirkenden Kräfte weiter reduziert werden können.The object of the invention is to provide a connection terminal by means of which the forces acting on the housing when a conductor is clamped can be further reduced.

Die Aufgabe wird erfindungsgemäß mit den Merkmalen des unabhängigen Anspruchs gelöst. Zweckmäßige Ausgestaltungen und vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved according to the invention with the features of the independent claim. Expedient configurations and advantageous developments of the invention are specified in the dependent claims.

Die Anschlussklemme gemäß der Erfindung zeichnet sich dadurch aus, dass der Halteschenkel eine Öffnung aufweist, durch welche ein freies Ende des Strombalkens hindurchgeführt ist und durch welche der anzuschließende Leiter hindurchführbar ist, wobei die Aufnahmeeinrichtung oberhalb der Öffnung und oberhalb des durch die Öffnung geführten Strombalkens an dem Halteschenkel angeordnet ist.The connection terminal according to the invention is characterized in that the holding leg has an opening through which a free end of the current bar is passed and through which the conductor to be connected can be passed, wherein the receiving device is arranged on the holding leg above the opening and above the current bar guided through the opening.

Erfindungsgemäß ist es nunmehr vorgesehen, dass das Betätigungselement unmittelbar an dem Halteschenkel der Klemmfeder gelagert ist, welcher im Gegensatz zu dem Klemmschenkel der Klemmfeder lagefixiert in der Anschlussklemme, insbesondere dem Gehäuse der Anschlussklemme, positioniert ist. Der Halteschenkel liegt dabei vorzugsweise flächig an dem Gehäuse, insbesondere flächig an einer einen Innenraum des Gehäuses begrenzenden Innenwandung, an. Das Betätigungselement ist mit seinem Achskörper an dem Halteschenkel der Klemmfeder gelagert, so dass die durch den Achskörper verlaufende Drehachse des Betätigungselements im Bereich der Klemmfeder positioniert ist. Zur Lagerung des Betätigungselements bzw. des Achskörpers des Betätigungselements an der Klemmfeder ist an der Klemmfeder eine Aufnahmeeinrichtung angeordnet, in welcher der Achskörper drehbar positioniert ist. Die Aufnahmeeinrichtung ist vorzugsweise unmittelbar an dem Halteschenkel der Klemmfeder angeformt. Bevorzugt ist die Aufnahmeeinrichtung einstückig mit dem Halteschenkel ausgebildet, so dass die Aufnahmeeinrichtung aus dem Metallband der Klemmfeder herausgebogen ist. Durch die Lagerung des Betätigungselements unmittelbar an dem Halteschenkel der Klemmfeder können die beim Klemmen eines Leiters auf das Gehäuse wirkenden Kräfte wesentlich reduziert werden, indem die Kräfte zum Betätigen der Klemmfeder, welche von dem Betätigungselement auf die Klemmfeder wirken, innerhalb der Klemmfeder gehalten werden können.According to the invention, it is now provided that the actuating element is mounted directly on the holding leg of the clamping spring, which, in contrast to the clamping leg of the clamping spring, is positioned in a fixed position in the connection terminal, in particular the housing of the connection terminal. The holding leg preferably rests flat on the housing, in particular flat on an inner wall delimiting an interior space of the housing. The actuating element is mounted with its axle body on the holding leg of the clamping spring, so that the axis of rotation of the actuating element running through the axle body is positioned in the region of the clamping spring. To support the actuating element or the axle body of the actuating element on the clamping spring, a receiving device is arranged on the clamping spring, in which the axle body is rotatably positioned. The receiving device is preferably formed directly on the retaining leg of the clamping spring. The receiving device is preferably formed in one piece with the retaining leg, so that the receiving device is bent out of the metal strip of the clamping spring. By mounting the actuating element directly on the retaining leg of the clamping spring, the forces acting on the housing when clamping a conductor can be significantly reduced, in that the forces for actuating the clamping spring, which act on the clamping spring from the actuating element, can be held within the clamping spring.

Um eine sichere, drehbare Lagerung des Achskörpers des Betätigungselements in der Aufnahmeeinrichtung erreichen zu können, ist es bevorzugt vorgesehen, dass die Aufnahmeeinrichtung U-förmig ausgebildet ist und den Achskörper zumindest teilweise umschließt. Die Aufnahmeeinrichtung ist dabei in ihrer Form vorzugsweise an die Außenkontur des Achskörpers angepasst, so dass eine optimale Führung des Achskörpers innerhalb der Aufnahmeeinrichtung während einer Schwenkbewegung des Betätigungselements erreicht werden kann.In order to be able to achieve a secure, rotatable mounting of the axle body of the actuating element in the receiving device, it is preferably provided that the receiving device is U-shaped and at least partially encloses the axle body. The shape of the receiving device is preferably adapted to the outer contour of the axle body, so that optimal guidance of the axle body within the receiving device can be achieved during a pivoting movement of the actuating element.

Die Klemmfeder ist derart ausgebildet, dass der Halteschenkel eine Öffnung aufweist, durch welche ein freies Ende des Strombalkens hindurchgeführt ist und durch welche der anzuschließende Leiter hindurchführbar ist. Die Öffnung ist vorzugsweise als fensterartige Öffnung ausgebildet und dient sowohl zum Hindurchführen des Strombalkens als auch zum Hindurchführen des anzuschließenden Leiters. Dadurch, dass sowohl der Strombalken als auch der anzuschließende Leiter durch die Öffnung des Strombalkens hindurchgeführt sind, können auch hierüber die beim Klemmen des Leiters gegen den Strombalken auftretenden Kräfte auf den Halteschenkel und damit auf die Klemmfeder übertragen werden, so dass die Kräfte von der Klemmfeder aufgenommen werden können und damit eine Übertragung der Klemmkräfte auf das Gehäuse der Anschlussklemme weitestgehend vermieden werden können. Dadurch können die beim Klemmen eines Leiters auf das Gehäuse wirkenden Kräfte weiter reduziert werden.The clamping spring is designed in such a way that the holding leg has an opening through which a free end of the current bar is passed and through which the conductor to be connected can be passed. The opening is preferably designed as a window-like opening and is used both for passing through the current bar and for passing through the conductor to be connected. Through this, that both the current bar and the conductor to be connected are passed through the opening of the current bar, the forces occurring when the conductor is clamped against the current bar can also be transmitted to the retaining leg and thus to the clamping spring, so that the forces are absorbed by the clamping spring can and thus a transmission of the clamping forces on the housing of the terminal can be largely avoided. As a result, the forces acting on the housing when a conductor is clamped can be further reduced.

Die Aufnahmeeinrichtung ist oberhalb der Öffnung und oberhalb des durch die Öffnung geführten Strombalkens an dem Halteschenkel der Klemmfeder angeordnet. Durch diese Positionierung der Aufnahmeeinrichtung und des Strombalkens und der Öffnung relativ zueinander kann eine platzsparende Anordnung der einzelnen Teile innerhalb der Anschlussklemme erreicht werden, wodurch die Baugröße der Anschlussklemme reduziert werden kann.The receiving device is arranged above the opening and above the current bar guided through the opening on the holding leg of the clamping spring. This positioning of the receiving device and the current bar and the opening relative to one another allows a space-saving arrangement of the individual parts within the terminal to be achieved, as a result of which the overall size of the terminal can be reduced.

Die Reduzierung der Baugröße der Anschlussklemme kann weiter dadurch erreicht werden, dass der Klemmschenkel an einem ersten freien Ende des Halteschenkels angeformt ist und dass die Aufnahmeeinrichtung an einem dem ersten freien Ende gegenüberliegenden zweiten freien Ende des Halteschenkels angeordnet ist. Zwischen den beiden freien Enden des Halteschenkels ist die Öffnung in dem Halteschenkel ausgebildet. Die Anordnung des Klemmschenkels an dem Halteschenkel und die Anordnung der Aufnahmeeinrichtung an dem Halteschenkel ist vorzugsweise an ein und derselben Längsseitenfläche des Halteschenkels vorgesehen und zwar an der Längsseitenfläche, welche in Richtung des Innenraumes des Gehäuses und damit des Innenraumes der Anschlussklemme zeigt, in welchem das Anschließen bzw. Klemmen des Leiters gegen den Strombalken erfolgt.The size of the connection terminal can be further reduced in that the clamping leg is integrally formed on a first free end of the retaining leg and that the receiving device is arranged on a second free end of the retaining leg opposite the first free end. The opening in the holding leg is formed between the two free ends of the holding leg. The arrangement of the clamping limb on the holding limb and the arrangement of the receiving device on the holding limb is preferably provided on one and the same longitudinal side surface of the holding limb, namely on the longitudinal side surface which points in the direction of the interior of the housing and thus the interior of the connecting terminal in which the connection or clamp the conductor against the current bar.

Der Klemmschenkel der Klemmfeder ist vorzugsweise derart geformt, dass dieser einen Anlagebereich aufweist, mittels welchem der Klemmschenkel an einer Längsseitenfläche des Halteschenkels anliegt, so dass bei einer Bewegung des Klemmschenkels in eine geöffnete Position und in eine geschlossenen Position der Klemmfeder dieser entlang der Längsseitenfläche des Halteschenkels verschiebbar ist. Bei einer Betätigung der Klemmfeder kann damit ein Teil des Klemmschenkels entlang des Halteschenkels gleiten, so dass mittels des Halteschenkels eine definierte Führung des Klemmschenkels ausgebildet werden kann.The clamping leg of the clamping spring is preferably shaped in such a way that it has a contact area, by means of which the clamping leg rests against a longitudinal side surface of the holding leg, so that when the clamping leg moves into an open position and into a closed position of the clamping spring, it moves along the longitudinal side surface of the holding leg is movable. When the clamping spring is actuated, a part of the clamping leg can thus slide along the holding leg, so that a defined guidance of the clamping leg can be formed by means of the holding leg.

Bevorzugt ist es vorgesehen, dass der Klemmschenkel nicht geradlinig ausgebildet ist, sondern dass der Klemmschenkel eine S-Form aufweist. Durch die S-Form des Klemmschenkels kann die mittels des Klemmschenkels aufzubringende Klemmkraft erhöht werden, ohne die Gesamtabmaße, insbesondere die Breite, der Klemmfeder zu erhöhen. Zudem kann die Federwirkung des Klemmschenkels verbessert werden.It is preferably provided that the clamping leg is not formed in a straight line, but that the clamping leg has an S-shape. Due to the S-shape of the clamping leg, the clamping force to be applied by means of the clamping leg can be increased without increasing the overall dimensions, in particular the width, of the clamping spring. In addition, the spring effect of the clamping leg can be improved.

Zur Ausbildung der S-Form kann der Klemmschenkel einen ersten mit dem Halteschenkel verbundenen Auslenkabschnitt, einen mit dem ersten Auslenkabschnitt über ein Biegegelenk verbundenen zweiten Auslenkabschnitt und einen über den Anlagebereich mit dem zweiten Auslenkabschnitt verbundenen Klemmabschnitt aufweisen. Die beiden Auslenkabschnitte und auch der Klemmabschnitt sind vorzugsweise geradlinig ausgebildet, wohingegen das Biegegelenk und der Anlagebereich vorzugsweise gebogen ausgebildet sind. Die beiden Auslenkabschnitte weisen vorzugsweise die gleiche Länge auf, wohingegen der Klemmabschnitt vorzugsweise eine wesentlich geringere Länge aufweist. Beispielsweise weist der Klemmabschnitt eine Länge auf, welche ungefähr ein Drittel der Länge eines Auslenkabschnittes beträgt. Die beiden Auslenkabschnitte bilden zusammen mit dem Halteschenkel vorzugsweise eine Delta-Form. Über die beiden Auslenkabschnitte wird vorzugsweise die Federwirkung der Klemmschenkels erreicht, wobei die Auslenkabschnitte beabstandet zu dem anzuschließenden Leiter angeordnet sind. Das Anschließen bzw. das Klemmen des Leiters erfolgt über den Klemmabschnitt der Klemmschenkels.To form the S-shape, the clamping leg can have a first deflection section connected to the holding leg, a second deflection section connected to the first deflection section via a flexible joint, and a clamping section connected to the second deflection section via the contact area. The two deflection sections and also the clamping section are preferably formed in a straight line, whereas the bending joint and the contact area are preferably formed in a curved manner. The two deflection sections preferably have the same length, whereas the clamping section preferably has a significantly shorter length. For example, the clamping section has a length which is approximately one third of the length of a deflection section. The two deflection sections, together with the holding leg, preferably form a delta shape. The spring effect of the clamping leg is preferably achieved via the two deflection sections, the deflection sections being arranged at a distance from the conductor to be connected. The conductor is connected or clamped via the clamping section of the clamping leg.

Das Betätigungselement ist vorzugsweise derart ausgebildet, dass dieses einen ersten Betätigungssteg und einen parallel dazu angeordneten zweiten Betätigungssteg aufweist, mittels welchen die Betätigung der Klemmfeder erfolgt, wobei zwischen dem ersten Betätigungssteg und dem zweiten Betätigungssteg der Achskörper bevorzugt angeordnet ist. Die Betätigungsstege sind länglich ausgebildet und erstrecken sich ausgehend von dem Achskörper hin zu dem Klemmschenkel der Klemmfeder, wobei zum Betätigen der Klemmfeder die Betätigungsstege durch eine Schwenkbewegung des Betätigungselements auf den Klemmschenkel drücken und damit eine Kraft auf diesen ausüben. Dadurch, dass zwei parallel zueinander angeordnete Betätigungsstege zeitgleich auf den Klemmschenkel beim Betätigen drücken, kann eine gleichmäßige Kraftverteilung über die Breite des Klemmschenkels erreicht werden, wobei ein Verkippen des Betätigungselements und/oder der Klemmfeder beim Betätigen der Klemmfeder vermieden werden kann. Dadurch, dass der Achskörper zwischen den beiden Betätigungsstegen angeordnet ist, können die Betätigungsstege zudem eine Sicherung des Achskörpers in der Aufnahmeeinrichtung ausbilden, da sie verhindern können, dass der Achskörper seitlich aus der Aufnahmeeinrichtung herausrutschen kann.The actuating element is preferably designed in such a way that it has a first actuating bar and a second actuating bar arranged parallel thereto, by means of which the clamping spring is actuated, the axle body preferably being arranged between the first actuating bar and the second actuating bar. The actuating webs are elongate and extend, starting from the axle body, to the clamping leg of the clamping spring, with the actuating webs pressing the clamping leg by a pivoting movement of the actuating element to actuate the clamping spring and thus exerting a force on it. The fact that two mutually parallel actuating webs simultaneously press on the clamping leg when pressing, a uniform distribution of force across the width of the clamping leg can be achieved, with tilting of the actuating element and / or the clamping spring when pressing the Clamping spring can be avoided. Because the axle body is arranged between the two actuating webs, the actuating webs can also secure the axle body in the receiving device, since they can prevent the axle body from slipping out of the receiving device laterally.

Beim Betätigen der Klemmfeder drücken die Betätigungsstege vorzugsweise nicht unmittelbar auf den Klemmabschnitt des Klemmschenkels und damit nicht auf den Teil des Klemmschenkels, welcher in unmittelbaren Kontakt mit dem geklemmten Leiter ist, sondern die Betätigungsstege stehen zum Betätigen der Klemmfeder vorzugsweise in Wirkverbindung mit dem zweiten Auslenkabschnitt der Klemmfeder, welcher gerade keinen direkten Kontakt mit dem anzuschließenden Leiter hat. Hierdurch kann erreicht werden, dass die vom Bediener aufzubringende Kraft auf das Betätigungselement zum Betätigen der Klemmfeder aufgrund des längeren Hebelarmes zwischen dem Betätigungselement bzw. dem Achskörper des Betätigungselements und dem Angriffspunkt des Betätigungselements an dem Klemmschenkel der Klemmfeder wesentlich reduziert werden kann, wodurch der Bedienkomfort für den Bediener der Anschlussklemme erhöht werden kann.When the clamping spring is actuated, the actuating webs preferably do not press directly on the clamping section of the clamping leg and thus not on that part of the clamping leg which is in direct contact with the clamped conductor, but rather the actuating webs are preferably in operative connection with the second deflection section of the clamping spring to actuate the clamping spring Clamping spring which is currently not in direct contact with the conductor to be connected. In this way it can be achieved that the force to be applied by the operator to the actuating element to actuate the clamping spring can be significantly reduced due to the longer lever arm between the actuating element or the axle body of the actuating element and the point of application of the actuating element on the clamping leg of the clamping spring, which means that the operating comfort for the operator of the terminal can be increased.

Nachfolgend wird die Erfindung unter Bezugnahme auf die anliegenden Zeichnungen anhand einer bevorzugten Ausführungsform näher erläutert.The invention is explained in more detail below with reference to the accompanying drawings using a preferred embodiment.

Es zeigen:

Fig. 1
eine schematische Schnittdarstellung einer Anschlussklemme gemäß der Erfindung mit der Klemmfeder in der geschlossenen Position,
Fig. 2
eine schematische perspektivische Darstellung des Betätigungselements, der Klemmfeder und des Strombalken der in Fig. 1 gezeigten Anschlussklemme mit der Klemmfeder in der geschlossenen Position,
Fig. 3
eine schematische Schnittdarstellung der in Fig. 1 gezeigten Anschlussklemme mit der Klemmfeder in der geöffneten Position, und
Fig. 4
eine schematische perspektivische Darstellung der Klemmfeder der in Fig. 1 gezeigten Anschlussklemme.
in Fig. 1 und 3 ist in einer Schnittdarstellung eine Anschlussklemme 100 zum Anschließen eines hier nicht gezeigten elektrischen Leiters dargestellt, wobei in Fig. 1 die Anschlussklemme 100 in einer geschlossenen Position und in Fig. 3 in einer geöffneten Position gezeigt ist.Show it:
1
a schematic sectional view of a terminal according to the invention with the clamping spring in the closed position,
2
a schematic perspective view of the actuating element, the clamping spring and the current bar in 1 terminal shown with the clamping spring in the closed position,
3
a schematic sectional view of in 1 terminal shown with the clamping spring in the open position, and
4
a schematic perspective view of the clamping spring in 1 terminal shown.
in 1 and 3 is shown in a sectional view of a terminal 100 for connecting an electrical conductor, not shown here, wherein in 1 the terminal 100 in a closed position and in 3 shown in an open position.

Die Anschlussklemme 100 weist ein Gehäuse 10 aus einem Isolierstoff auf, wobei das Gehäuse 10 eine Leitereinführöffnung 11 zum Einführen des anzuschließenden Leiters in die Anschlussklemme 100 aufweist.The connection terminal 100 has a housing 10 made of an insulating material, the housing 10 having a conductor insertion opening 11 for inserting the conductor to be connected into the connection terminal 100 .

In dem Gehäuse 10 ist ein Strombalken 12 angeordnet, gegen welchen der anzuschließende Leiter elektrisch kontaktierend geklemmt werden kann.A current bar 12 is arranged in the housing 10, against which the conductor to be connected can be clamped in an electrically contacting manner.

Zum Klemmen des Leiters gegen den Strombalken 12 weist die Anschlussklemme 100 eine Klemmfeder 13 auf, welche in einem Innenraum 14 des Gehäuses 10 angeordnet ist. Die Klemmfeder 13 weist einen Halteschenkel 15 und einen über einen gebogenen Abschnitt 16 mit dem Halteschenkel 15 verbundenen Klemmschenkel 17 auf. Der Halteschenkel 15 liegt zumindest abschnittsweise flächig an einer den Innenraum 14 des Gehäuses 10 begrenzenden Innenwandung 18 des Gehäuses 10 an. Der Halteschenkel 15 ist damit lagefixiert in dem Gehäuse 10 angeordnet. Der Klemmschenkel 17 erstreckt sich im Gegensatz zum Halteschenkel 15 in den Innenraum 14 des Gehäuses 10 hinein, wobei der Klemmschenkel 17 federelastisch in dem Innenraum 14 des Gehäuses 10 bewegbar ist. Mittels des Klemmschenkels 17 erfolgt das Klemmen des Leiters gegen den Strombalken 12.In order to clamp the conductor against the current bar 12 , the connection terminal 100 has a clamping spring 13 which is arranged in an interior space 14 of the housing 10 . The clamping spring 13 has a holding leg 15 and a clamping leg 17 connected to the holding leg 15 via a bent section 16 . The holding leg 15 bears at least partially flat against an inner wall 18 of the housing 10 that delimits the interior space 14 of the housing 10 . The holding leg 15 is thus arranged in a fixed position in the housing 10 . In contrast to the retaining leg 15 , the clamping leg 17 extends into the interior 14 of the housing 10 , the clamping leg 17 being resiliently movable in the interior 14 of the housing 10 . The conductor is clamped against the current bar 12 by means of the clamping leg 17.

Zum Betätigen der Klemmfeder 13, um diese in eine geöffnete Position und/oder eine geschlossene Position zu überführen, weist die Anschlussklemme 100 ein schwenkbeweglich gelagertes Betätigungselement 19 auf. Das Betätigungselement 19 weist einen Achskörper 20 in Form einer Welle auf, wobei die Drehachse des Betätigungselements 19 durch den Achskörper 20 verläuft, so dass das Betätigungselement 19 um den Achskörper 20 schwenkbar ist. Gelagert ist der Achskörper 20 in einer Aufnahmeeinrichtung 21, welche an dem Halteschenkel 15 der Klemmfeder 13 angeordnet ist. Der Achskörper 20 ist damit an der Klemmfeder 13 gelagert und nicht unmittelbar an dem Gehäuse 10. Dadurch können die Kräfte, die beim Klemmen eines Leiters von dem Betätigungselement 19 auf die Klemmfeder 13 wirken, innerhalb der Klemmfeder 13 gehalten werden, so dass die auf das Gehäuse 10 wirkenden Kräfte wesentlich reduziert werden können.In order to actuate the clamping spring 13 in order to convert it into an open position and/or a closed position, the connection terminal 100 has an actuating element 19 which is mounted in a pivotable manner. The actuating element 19 has an axle body 20 in the form of a shaft, the axis of rotation of the actuating element 19 running through the axle body 20 so that the actuating element 19 can be pivoted about the axle body 20 . The axle body 20 is mounted in a receiving device 21 which is arranged on the holding leg 15 of the clamping spring 13 . The axle body 20 is thus mounted on the clamping spring 13 and not directly on the housing 10. As a result, the forces that are exerted on the clamping spring 13 by the actuating element 19 when a conductor is clamped act, are held within the clamping spring 13, so that the forces acting on the housing 10 can be significantly reduced.

In Fig. 4 sind die Klemmfeder 13 und die daran angeordnete Aufnahmeeinrichtung 21 alleine, ohne die weiteren Teile der Anschlussklemme 100 gezeigt. Die Aufnahmeeinrichtung 21 ist bei der hier gezeigten Ausgestaltung einstückig mit der Klemmfeder 13 ausgebildet, indem die Aufnahmeeinrichtung 21 aus dem Bandmaterial der Klemmfeder 13 herausgebogen ist. Die Aufnahmeeinrichtung 21 weist eine etwas geringere Breite auf als der Halteschenkel 15. Die Aufnahmeeinrichtung 21 ist in einer U-Form bzw. einer C-Form gebogen ausgebildet, so dass die Aufnahmeeinrichtung 21 den im Querschnitt kreisrund ausgebildeten Achskörper 20 zumindest teilweise umschließt. Die Kontur der Aufnahmeeinrichtung 21 ist damit an die Kontur des Achskörpers 20 angepasst.In 4 the clamping spring 13 and the receiving device 21 arranged thereon are shown alone, without the other parts of the connection terminal 100. In the embodiment shown here, the receiving device 21 is formed in one piece with the clamping spring 13 in that the receiving device 21 is bent out of the strip material of the clamping spring 13 . The receiving device 21 has a slightly smaller width than the retaining leg 15. The receiving device 21 is curved in a U-shape or a C-shape, so that the receiving device 21 at least partially encloses the axle body 20, which has a circular cross-section. The contour of the receiving device 21 is thus adapted to the contour of the axle body 20 .

Unterhalb der Anbindung der Aufnahmeeinrichtung 21 an den Halteschenkel 15 ist eine fensterartige Öffnung 22 in dem Halteschenkel 15 ausgebildet, durch welche ein freies Ende 37 des Strombalkens 12 hindurchgeführt ist, wie in den Fig. 1 - 3 zu erkennen ist, und durch welche der anzuschließende Leiter hindurchführbar ist. Der durch die Öffnung 22 in den Innenraum 14 des Gehäuses 10 eingeführte Leiter wird mittels dem Klemmschenkel 17 der Klemmfeder 13 gegen eine erste, in Richtung des Innenraumes 14 des Gehäuses 10 gerichtete Seitenfläche 23 des Strombalkens 12 geklemmt. Mit einer der ersten Seitenfläche 23 gegenüberliegenden zweiten Seitenfläche 24, welche von dem Innenraum 14 des Gehäuses 10 wegzeigt, liegt der Strombalken 12 an der Aufnahmeeinrichtung 21, insbesondere an einer Außenfläche der Aufnahmeeinrichtung 21 an. Die Aufnahmeeinrichtung 21 und der Klemmschenkel 17 der Klemmfeder 13 sind damit durch den Strombalken 12 voneinander getrennt. Die Öffnung 21 im Halteschenkel 15 ist fluchtend zu der Leitereinführöffnung 11 im Gehäuse 10 angeordnet.A window-like opening 22 is formed in the holding leg 15 below the connection of the receiving device 21 to the holding leg 15, through which a free end 37 of the current bar 12 is guided, as in FIGS Figures 1 - 3 can be seen, and through which the conductor to be connected can be passed. The conductor introduced through the opening 22 into the interior 14 of the housing 10 is clamped by means of the clamping leg 17 of the clamping spring 13 against a first side surface 23 of the current bar 12 directed towards the interior 14 of the housing 10 . The current bar 12 rests on the receiving device 21 , in particular on an outer surface of the receiving device 21 , with a second side face 24 opposite the first side face 23 and pointing away from the interior 14 of the housing 10 . The receiving device 21 and the clamping leg 17 of the clamping spring 13 are thus separated from one another by the current bar 12 . The opening 21 in the holding leg 15 is arranged in alignment with the conductor insertion opening 11 in the housing 10 .

Bei der hier gezeigten Ausgestaltung sind die Aufnahmeeinrichtung 21 und der Klemmschenkel 18 an zueinander beabstandeten Enden 36, 25 des Halteschenkels 15 angeordnet, so dass ein größtmöglicher Abstand zwischen der Aufnahmeeinrichtung 21 und dem Klemmschenkel 18 ausgebildet ist. Der Klemmschenkel 17 ist dabei an einem ersten freien Ende 36 des Halteschenkels 15 angeformt und die Aufnahmeeinrichtung ist an einem dem ersten freien Ende 36 gegenüberliegenden zweiten freien Ende 25 des Halteschenkels 15 angeordnet.In the embodiment shown here, the receiving device 21 and the clamping leg 18 are arranged on ends 36, 25 of the holding leg 15 spaced apart from one another, so that the greatest possible distance is formed between the receiving device 21 and the clamping leg 18. The clamping leg 17 is formed on a first free end 36 of the holding leg 15 and the receiving device is arranged on a second free end 25 of the holding leg 15 opposite the first free end 36 .

Wie in Fig. 2 und 4 zu erkennen ist, weist der Klemmschenkel 17 eine geringere Breite auf als der Halteschenkel 15.As in 2 and 4 can be seen, the clamping leg 17 has a smaller width than the holding leg 15.

Der Halteschenkel 15 der Klemmfeder 13 ist geradlinig ausgebildet.The holding leg 15 of the clamping spring 13 is straight.

Der Klemmschenkel 17 der Klemmfeder 13 ist hingegen nicht geradlinig ausgebildet, sondern der Klemmschenkel 17 ist in mehrere Abschnitte aufgeteilt, welche jeweils in einem Winkel zwischen 10° und 80° zueinander angeordnet sind. Der Klemmschenkel 17 weist damit eine S-Form auf.The clamping leg 17 of the clamping spring 13, however, is not straight, but the clamping leg 17 is divided into several sections, which are each arranged at an angle between 10 ° and 80 ° to each other. The clamping leg 17 thus has an S-shape.

Der Klemmschenkel 17 ist unter anderem derart geformt, dass dieser einen Anlagebereich 26 aufweist, mittels welchem der Klemmschenkel 17 an einer in Richtung Innenraum 14 des Gehäuses 10 gerichteten Längsseitenfläche 27 des Halteschenkels 15 anliegt, so dass bei einer Bewegung des Klemmschenkels 17 in eine geöffnete Position und in eine geschlossene Position der Klemmfeder 13 dieser entlang der Längsseitenfläche 27 verschoben wird. Dieser Anlagebereich 26 weist eine Bogenform auf.The clamping leg 17 is shaped, among other things, in such a way that it has a contact area 26, by means of which the clamping leg 17 rests against a longitudinal side surface 27 of the holding leg 15, which is directed towards the interior space 14 of the housing 10, so that when the clamping leg 17 moves into an open position and when the clamping spring 13 is in a closed position, it is displaced along the longitudinal side surface 27 . This abutment area 26 has an arc shape.

Zur Ausbildung der S-Form weist der Klemmschenkel 17 ferner einen ersten mit dem Halteschenkel 15 verbundenen Auslenkabschnitt 28, einen mit dem ersten Auslenkabschnitt 28 über ein Biegegelenk 29 verbundenen zweiten Auslenkabschnitt 30 und einen über den Anlagebereich 26 mit dem zweiten Auslenkabschnitt 30 verbundenen Klemmabschnitt 31 auf. Die Federwirkung des Klemmschenkels 17 wird über die beiden Auslenkabschnitte 28, 30 erreicht, welche über das Biegegelenk 29 relativ zueinander bewegbar sind. Die beiden Auslenkabschnitte 28, 30 weisen ungefähr die gleiche Länge auf. Zusammen mit einem Teil des Halteabschnitts 15 bilden die Auslenkabschnitte 28, 30 eine Deltaform aus. In dem zweiten Auslenkabschnitt 30 ist ein Längsschlitz 32 ausgebildet, welcher sich über die gesamte Länge des Auslenkabschnitts 30 erstreckt. Die Federwirkung des Klemmschenkels 17 kann durch das Vorsehen des Längsschlitzes 32 in dem Auslenkabschnitt 30 erhöht werden. Die Klemmung des Leiters erfolgt über einen direkten Kontakt des Klemmabschnitts 31 des Klemmschenkels 17 mit dem Leiter. Der Klemmabschnitt 31 weist eine wesentlich geringere Länge auf als die Auslenkabschnitte 28, 30. Die Länge des Klemmabschnitts 31 beträgt weniger als ein Drittel der Länge eines der Auslenkabschnitte 28, 30. Die Breite des Klemmschenkels 17 ist über die beiden Auslenkabschnitte 28, 30, das Biegegelenk 29 und den Anlagebereich 26 konstant ausgebildet, wohingegen der Klemmabschnitt 31 eine geringere Breite aufweist und damit schmaler ist als die beiden Auslenkabschnitte 28, 30, das Biegegelenk 29 und der Anlagebereich 26.To form the S-shape, the clamping leg 17 also has a first deflection section 28 connected to the holding leg 15, a second deflection section 30 connected to the first deflection section 28 via a flexible joint 29, and a clamping section 31 connected to the second deflection section 30 via the contact area 26 . The spring effect of the clamping leg 17 is achieved via the two deflection sections 28, 30, which can be moved relative to one another via the flexible joint 29. The two deflection sections 28, 30 have approximately the same length. Together with part of the holding section 15, the deflection sections 28, 30 form a delta shape. A longitudinal slot 32 is formed in the second deflection section 30 and extends over the entire length of the deflection section 30 . The spring action of the clamping leg 17 can be increased by providing the longitudinal slot 32 in the deflection section 30 . The conductor is clamped by direct contact of the clamping section 31 of the clamp leg 17 with the conductor. The clamping section 31 has a significantly shorter length than the deflection sections 28, 30. The length of the clamping section 31 is less than one third of the length of one of the deflection sections 28, 30. The width of the clamping leg 17 is greater than the two deflection sections 28, 30, the Flexible joint 29 and the contact area 26 are designed to be constant, whereas the clamping section 31 has a smaller width and is therefore narrower than the two deflection sections 28, 30, the flexible joint 29 and the contact area 26.

Für die Betätigung der Klemmfeder 13 weist das Betätigungselement 19 einen ersten Betätigungssteg 33 und einen parallel dazu angeordneten zweiten Betätigungssteg 34 auf, wie insbesondere in Fig. 2 zu erkennen ist, wobei zwischen dem ersten Betätigungssteg 33 und dem zweiten Betätigungssteg 34 der Achskörper 20 angeordnet ist. Ausgehend von dem Achskörper 20 ragen die beiden Betätigungsstege 33, 34 in den Innenraum 14 des Gehäuses 10 hinein. Die beiden Betätigungsstege 33, 34 sind dabei jeweils an dem Strombalken 12 seitlich vorbeigeführt, so dass der Strombalken 12 zwischen den beiden Betätigungsstegen 33, 34 angeordnet ist. Die Betätigungsstege 33, 34 umgreifen damit den Strombalken 12.For actuating the clamping spring 13, the actuating element 19 has a first actuating bar 33 and a second actuating bar 34 arranged parallel thereto, as in particular in 2 can be seen, the axle body 20 being arranged between the first actuating web 33 and the second actuating web 34 . Starting from the axle body 20, the two actuating webs 33, 34 protrude into the interior 14 of the housing 10. The two actuating bars 33, 34 are each guided past the current bar 12 laterally, so that the current bar 12 is arranged between the two actuating bars 33, 34. The actuating webs 33, 34 thus encompass the current bar 12.

Die Betätigungsstege 33, 34 sind derart lang ausgebildet, dass sie zum Betätigen der Klemmfeder 13 in Wirkverbindung mit dem zweiten Auslenkabschnitt 30 der Klemmfeder 13 stehen und nicht in Wirkverbindung mit dem Klemmabschnitt 31 stehen. Bei einer Bewegung der Klemmfeder 13 bzw. der Anschlussklemme 100 in die geöffnete Position und in die geschlossene Position werden die Betätigungsstege 33, 34 entlang der Fläche des zweiten Auslenkabschnitts 30 bewegt bzw. verschoben, wie in Fig. 1 und 3 zu erkennen ist.The actuating webs 33 , 34 are of such a length that they are operatively connected to the second deflection section 30 of the clamping spring 13 to actuate the clamping spring 13 and are not operatively connected to the clamping section 31 . When the clamping spring 13 or the connection terminal 100 moves into the open position and into the closed position, the actuating webs 33, 34 are moved or shifted along the surface of the second deflection section 30, as shown in FIG 1 and 3 can be seen.

Das Betätigungselement 19 weist ferner einen Griff 35 auf, über welchen ein Bediener der Anschlussklemme 100 das Betätigungselement 19 greifen und verschwenken kann. Der Griff des Betätigungselements 19 ragt aus dem Gehäuse 10 heraus. Der Griff 35, der Achskörper 20 und die Betätigungsstege 33, 34 sind einstückig miteinander verbunden. Bezugszeichenliste Anschlussklemme 100 Gehäuse 10 Leitereinführungsöffnung 11 Strombalken 12 Klemmfeder 13 Innenraum 14 Halteschenkel 15 Gebogener Abschnitt 16 Klemmschenkel 17 Innenwandung 18 Betätigungselement 19 Achskörper 20 Aufnahmeeinrichtung 21 Öffnung 22 Erste Seitenfläche 23 Zweite Seitenfläche 24 Zweites freies Ende des Halteschenkels 25 Anlagebereich 26 Längsseitenfläche 27 Erste Auslenkabschnitt 28 Biegegelenk 29 Zweiter Auslenkabschnitt 30 Klemmabschnitt 31 Längsschlitz 32 Erster Betätigungssteg 33 Zweiter Betätigungssteg 34 Griff 35 Erstes freies Ende des Halteschenkels 36 Freies Ende des Strombalkens 37 The actuating element 19 also has a handle 35, via which an operator of the connection terminal 100 can grip and pivot the actuating element 19. The handle of the operating element 19 protrudes from the housing 10 . The handle 35, the axle body 20 and the actuating webs 33, 34 are integrally connected. reference list terminal block 100 Housing 10 conductor entry hole 11 power bar 12 clamping spring 13 inner space 14 holding leg 15 Curved section 16 clamp legs 17 inner wall 18 actuator 19 axle body 20 recording facility 21 opening 22 First face 23 Second side face 24 Second free end of the holding leg 25 investment area 26 long side face 27 First deflection section 28 bending joint 29 Second deflection section 30 clamping section 31 longitudinal slit 32 First actuation bar 33 Second operating bar 34 Handle 35 First free end of the holding leg 36 Free end of the power bar 37

Claims (8)

  1. Connection terminal (100) for connection of an electrical conductor, having
    a housing (10),
    a busbar (12),
    a clamping spring (13), which has a holding limb (15) and a clamping limb (17), wherein the conductor is able to be clamped against the busbar (12) by means of the clamping limb (17), and
    a pivotably mounted actuating element (19) for actuating the clamping spring (13), wherein the actuating element (19) has a spindle body (20) around which the actuating element (19) is pivotable, wherein a receiving device (21) is arranged on the holding limb (15), in which receiving device the spindle body (20) is rotatably mounted,
    characterized in that the holding limb (15) has an opening (22) through which a free end (37) of the busbar (12) is led and through which the conductor to be connected is able to be led, wherein the receiving device (21) is arranged on the holding limb (15) above the opening (22) and above the busbar (12) that is led through the opening (22).
  2. Connection terminal (100) according to Claim 1, characterized in that the receiving device (21) is of U-shaped form and at least partially surrounds the spindle body (20).
  3. Connection terminal (100) according to Claim 1 or 2, characterized in that the clamping limb (17) is formed integrally on a first free end (36) of the holding limb (15), and in that the receiving device (21) is arranged on a second free end (25), situated opposite the first free end (36), of the holding limb (15).
  4. Connection terminal (100) according to one of Claims 1 to 3, characterized in that the clamping limb (17) is shaped in such a way that it has a bearing region (26) by means of which the clamping limb (17) bears against a longitudinal side surface (27) of the holding limb (15) such that, during a movement of the clamping limb (17) into an open position and into a closed position of the clamping spring (13), it is displaceable along the longitudinal side surface (27) of the holding limb (15).
  5. Connection terminal (100) according to one of Claims 1 to 4, characterized in that the clamping limb (17) has an S shape.
  6. Connection terminal (100) according to Claim 5, characterized in that, for forming the S shape, the clamping limb (17) has a first deflecting portion (28), which is connected to the holding limb (15), has a second deflecting portion (30), which is connected to the first deflecting portion (28) via a bending joint (29), and has a clamping portion (31), which is connected to the second deflecting section (30) via the bearing region (26).
  7. Connection terminal (100) according to one of Claims 1 to 6, characterized in that the actuating element (19) has a first actuating web (33) and a second actuating web (34), arranged parallel thereto, by means of which the actuation of the clamping spring (13) is realized, wherein the spindle body (20) is arranged between the first actuating web (33) and the second actuating web (34).
  8. Connection terminal (100) according to Claim 7, characterized in that the actuating webs (33, 34), for actuating the clamping spring (13), are operatively connected to the second deflecting portion (30) of the clamping spring (13).
EP17754344.4A 2016-08-25 2017-08-16 Terminal Active EP3504756B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU93183A LU93183B1 (en) 2016-08-25 2016-08-25 terminal
PCT/EP2017/070792 WO2018036886A1 (en) 2016-08-25 2017-08-16 Terminal

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Publication Number Publication Date
EP3504756A1 EP3504756A1 (en) 2019-07-03
EP3504756B1 true EP3504756B1 (en) 2023-03-15

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US (1) US20190245281A1 (en)
EP (1) EP3504756B1 (en)
CN (1) CN109643859B (en)
LU (1) LU93183B1 (en)
WO (1) WO2018036886A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102018124623B4 (en) * 2018-10-05 2022-07-07 Wago Verwaltungsgesellschaft Mbh Contact insert of a conductor terminal and conductor terminal formed therewith
DE102019106350B4 (en) * 2019-03-13 2023-06-07 Phoenix Contact Gmbh & Co. Kg terminal block
DE102019117301A1 (en) * 2019-06-27 2020-12-31 Phoenix Contact Gmbh & Co. Kg Terminal
DE102019131141A1 (en) * 2019-11-19 2021-05-20 Phoenix Contact Gmbh & Co. Kg Terminal arrangement, connector terminal and electronic device
DE102019131144A1 (en) * 2019-11-19 2021-05-20 Phoenix Contact Gmbh & Co. Kg Terminal arrangement, connector terminal and electronic device

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EP1641078A2 (en) * 2004-09-23 2006-03-29 Phoenix Contact GmbH & Co. KG Electrical connector or connecting terminal

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ATE302475T1 (en) * 2000-12-11 2005-09-15 Hager Electro ELECTRICAL CONNECTOR WITH CAGE SPRING AND SELF-SUPPORTING LEVER
FR2873859B1 (en) * 2004-07-30 2006-12-08 Legrand Sa ELECTRICAL APPARATUS COMPRISING AN AUTOMATIC CONNECTION TERMINAL
DE102004045025B3 (en) * 2004-09-15 2006-02-16 Phoenix Contact Gmbh & Co. Kg Electrical connection or connection terminal
DE102006005260A1 (en) * 2006-02-02 2007-08-16 Phoenix Contact Gmbh & Co. Kg Electrical connection terminal
DE102011056410B4 (en) 2011-12-14 2013-06-27 Wago Verwaltungsgesellschaft Mbh terminal
DE202012104408U1 (en) * 2012-11-09 2014-02-10 Weidmüller Interface GmbH & Co. KG Spring terminal with an actuating means
DE102012110759B4 (en) * 2012-11-09 2021-04-01 Wago Verwaltungsgesellschaft Mbh Spring clamp connection and electrical device herewith
DE102012110895B4 (en) * 2012-11-13 2015-03-26 Wago Verwaltungsgesellschaft Mbh terminal
DE102013101406B4 (en) * 2013-02-13 2018-07-12 Wago Verwaltungsgesellschaft Mbh Conductor terminal
DE102013110481A1 (en) * 2013-09-23 2015-03-26 Phoenix Contact Gmbh & Co. Kg Electrical connection terminal
CN104767041B (en) * 2015-04-01 2016-12-07 苏州华旃航天电器有限公司 A kind of adapter with fast lock line structure

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DE19646103C1 (en) * 1996-11-08 1998-03-12 Phoenix Contact Gmbh & Co Bent metal cage spring clamp for mounting on current rail
EP1641078A2 (en) * 2004-09-23 2006-03-29 Phoenix Contact GmbH & Co. KG Electrical connector or connecting terminal

Also Published As

Publication number Publication date
CN109643859B (en) 2020-12-04
LU93183B1 (en) 2018-03-28
WO2018036886A1 (en) 2018-03-01
US20190245281A1 (en) 2019-08-08
CN109643859A (en) 2019-04-16
EP3504756A1 (en) 2019-07-03

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