EP3776743B1 - Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur et bloc de jonction - Google Patents

Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur et bloc de jonction Download PDF

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Publication number
EP3776743B1
EP3776743B1 EP19714619.4A EP19714619A EP3776743B1 EP 3776743 B1 EP3776743 B1 EP 3776743B1 EP 19714619 A EP19714619 A EP 19714619A EP 3776743 B1 EP3776743 B1 EP 3776743B1
Authority
EP
European Patent Office
Prior art keywords
actuating lever
actuating
leg
conductor
clamping
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
EP19714619.4A
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German (de)
English (en)
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EP3776743A1 (fr
Inventor
Frank Hartmann
Gunter Spey
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.)
Wago Verwaltungs GmbH
Original Assignee
Wago Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE202018101732.2U external-priority patent/DE202018101732U1/de
Application filed by Wago Verwaltungs GmbH filed Critical Wago Verwaltungs GmbH
Publication of EP3776743A1 publication Critical patent/EP3776743A1/fr
Application granted granted Critical
Publication of EP3776743B1 publication Critical patent/EP3776743B1/fr
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
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
    • 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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks

Definitions

  • the invention relates to a conductor connection terminal according to the preamble of claim 1.
  • From the DE 10 2014 114 026 A1 discloses a conductor terminal and a method for mounting it. From the DE 10 2016 118 331 A1 a conductor connection terminal for connecting electrical conductors with a multi-part operating lever is known. From the DE 10 2011 110 640 A1 another conductor terminal with lever actuation is known. From the DE 102 37 701 A1 is a connection terminal for solid, stranded and in particular finely stranded electrical conductors.
  • One embodiment relates to a conductor connection terminal with an insulating material housing, a clamping spring and an actuating element which is accommodated in the insulating material housing in a pivotable manner over a pivoting range, the actuating lever interacting with the clamping spring.
  • the clamping spring can have a clamping leg and/or a contact leg.
  • the clamping tongue can have a clamping tongue.
  • the clamping spring can have a spring bow adjoining the contact leg.
  • the clamping leg can be connected to the spring bow.
  • the clamping spring can have an actuating leg protruding from the clamping leg.
  • the actuating element can interact with the actuating arm to move the clamping tongue.
  • the actuating element can, for example, be an actuating lever which is accommodated in the insulating material housing so that it can pivot over a pivoting range.
  • the conductor connection terminal can also have a busbar.
  • the invention thus relates to a conductor connection terminal with an insulating material housing, a clamping spring and an actuating lever which is accommodated in the insulating material housing so that it can pivot over a pivoting range and can be pivoted between an open position and a closed position, the clamping spring having an actuating leg which Spring driver of the operating lever is deflected at least in the open position.
  • the conductor connection terminal can also have a busbar.
  • the two embodiments of the conductor connection terminal mentioned can also be advantageously combined with one another.
  • One embodiment also relates to a clamping spring of a conductor connection terminal for connecting an electrical conductor to a busbar, the clamping spring having a contact leg, a spring bow adjoining the contact leg and a clamping leg which adjoins the spring bow and ends with a clamping tongue, with an actuating leg protruding from the clamping leg, the actuating leg having a driver opening for engaging a spring driver of an actuating lever of the conductor terminal.
  • the actuating leg can have two side bars spaced apart from one another.
  • the actuating leg can have a transverse web. The transverse web can connect the side webs to one another at their free end. The side bars and the cross bar can enclose the driver opening.
  • Such a clamping spring is suitable, for example, as a clamping spring of a conductor connection terminal of the type explained above.
  • An embodiment also relates to a conductor connection terminal with an insulating housing, a busbar, a clamping spring and an actuating lever which is accommodated in the insulating housing such that it can pivot over a pivoting range and can be pivoted between an open position and a closed position, the clamping spring having an actuating leg, which is deflected at least in the open position via a spring driver of the actuating lever, the actuating lever being supported on the busbar with a bearing force at least over a partial area of the pivoting area and the actuating lever in the open position via at least one fixing element arranged on the actuating lever in interaction with a counter-fixing element formed on the busbar can be latched.
  • the fixing element mentioned above can, for example, be the fourth fixing element which will be explained below.
  • a part of the busbar can serve as a counter-fixing element, in particular the curved region of the busbar, which will be explained below.
  • the invention relates to the field of conductor connection technology using clamping springs.
  • the object of the invention is to improve such conductor connection terminals, their clamping springs and terminal blocks formed therewith.
  • the actuating lever is supported on the conductor rail at least over a partial area of the pivoting area. Accordingly, the actuating lever is supported on the conductor rail, which enables the actuating lever to be supported robustly and fixed in certain positions, e.g. the open position or the closed position.
  • the conductor rail can be fixed in the insulating housing, i.e. arranged essentially immovably in all three spatial directions in the insulating housing, except for tolerances.
  • the actuating lever has at least one bearing projection for supporting the actuating lever on the conductor rail.
  • a defined bearing surface of the actuating lever is provided, via which the actuating lever can be supported on the conductor rail.
  • the bearing projection can, for example, protrude laterally from a pivoting plane of the operating lever, for example on one side or on both sides of the operating lever.
  • the recess in the busbar can, for example, be in the form of a slot, i.e. in the form of a longitudinal slot in the busbar.
  • the recess in the busbar is enclosed in the form of a slot and in particular on the peripheral side by the material of the busbar.
  • the recess can form a robust guide for the first guide section of the actuating lever.
  • the busbar is not excessively weakened by the recess.
  • a conductor connection terminal with a clamping spring and a busbar, which has a slot-shaped recess, is also to be regarded as an independent invention.
  • Such a conductor terminal can also be advantageously combined with the other embodiments of the conductor terminal mentioned.
  • the slit-shaped recess can be used for different purposes, e.g. for fixing the busbar in the insulating housing. Another possible application for storing and guiding the actuating lever, as explained above.
  • the actuating lever is guided during a pivoting movement at least over a partial area of the pivoting area by the first guide section in the recess in the conductor rail.
  • the bearing projection is arranged adjacent to the first guide section on the actuating lever.
  • the bearing projection and the first guide section can be spaced apart by a groove, for example.
  • the bearing projection and the first guide section can have guide surfaces which are at an angle, for example 90°, to one another.
  • the bearing projection can also be arranged adjacent to the first guide section, for example laterally offset from the first guide section. In this way, the lateral guidance of the actuating lever via the first guide section can be connected to the support in a mechanically favorable manner of the actuating lever on the conductor rail can be combined by means of the support projection.
  • the contact leg is supported on the conductor rail.
  • the clamping spring can also be supported directly on the busbar, which opens up the possibility of providing a self-supporting contact insert in which as little force as possible is transmitted to the insulating material housing.
  • the actuating lever is mounted in a floating manner in the insulating material housing. Accordingly, the actuating lever does not have a fixed (rigid) axis of rotation, but can also move in at least one other degree of freedom, e.g. a sliding degree of freedom, in the course of the pivoting movement. In this way, the function of the operating lever can be further improved, e.g. with regard to the fixing of the operating lever in the open position and the closed position.
  • the axis of rotation that is effective in the respective operating state of the actuating lever is also referred to as the instantaneous center.
  • the instantaneous pole can thus be variable in terms of location in the course of the pivoting movement of the actuating lever.
  • the busbar has a first busbar section, on which a first clamping point of a first conductor connection of the conductor connection terminal is formed, and a second busbar section, the first busbar section having a curved region of the busbar in which the busbar curves is formed, is connected to the second busbar section.
  • the curved area and/or the second busbar section can be used for other functionalities of the conductor connection terminal, e.g. for supporting the actuating lever, its additional guidance when pivoting and/or its fixation, for example in the open position.
  • the actuating lever is supported on the busbar at least over a partial area of the pivoting range in the second busbar section.
  • the contact leg can be mounted in or on the first busbar section on the busbar.
  • the actuating lever has a contour adapted to the curvature of the curved area in the area supported on the conductor rail, which contour rests on the upper side of the curved area when the actuating lever is in the open position, and a fourth fixing element for fixing the Actuating lever forms on the power rail.
  • the actuating lever in the open position, i.e. in the open pivoted state of the actuating lever, can be fixed by positive engagement of the curved area in the adapted contour.
  • the adapted contour thus forms the fourth fixing element, e.g. a locking element, for fixing the actuating lever in the open position.
  • an interior angle between the first busbar section and the second busbar section in the range of 105 to 165 degrees or 120 degrees to 150 degrees is formed by the curved region. This also promotes the compact design of the conductor connection terminal. In addition, a favorable conductor insertion direction can be implemented, for example for applications in terminal blocks.
  • the curved area is designed in such a way that the busbar, starting from the second busbar section, is first concavely bent with a first radius (R1) and then transitions into a convexly bent section with a second radius (R2). .
  • the radii of curvature of the first radius R1 and the second radius R2 are directed in opposite directions.
  • a kind of "hump" can be realized in the area of curvature, which is particularly suitable for positively locking the actuating lever in the open position.
  • the area of curvature can in particular be designed in such a way that the conductor rail changes directly from the first radius into the second radius, without a non-curved area being arranged in between. Due to the arrangement explained with the first radius and the second radius bent in the opposite direction thereto, a kind of hump is formed in the busbar, thus a section that is raised in relation to the adjoining areas of the busbar.
  • the recess of the busbar is arranged only in the second busbar section or extends from the second busbar section into the area of curvature or from the second busbar section over the area of curvature into the first busbar section extends.
  • that area of the busbar that is used to guide the actuating lever can be spatially spaced from an area of the busbar that forms a spring-loaded terminal connection with the clamping spring.
  • the actuating arm has a driver area and the actuating lever has a spring driver which interacts with the driver area to move the clamping tongue.
  • the clamping tongue can be deflected by the actuating lever.
  • the entrainment area on the actuating arm can, for example, as explained below, be designed as an entraining opening or as a lateral cutout in the actuating arm.
  • the spring driver is arranged at least partially or completely within the recess of the busbar in the closed position. In this way, the spring driver is moved far back so that it cannot exert any influence on the actuating arm.
  • the spring driver also acts as a guide element that guides the actuating lever in the closed position within the recess of the conductor rail.
  • the actuating lever is mounted on the busbar in that at least one bearing projection of the actuating lever is mounted on a bearing area of the busbar facing the actuating lever.
  • the support area is arranged, for example, on an upper side of the busbar.
  • the first guide section or an element of the actuating lever connected thereto, for example the second fixing element can protrude through the recess in the busbar and fulfill a further function.
  • the operating lever in combination with the recess can act functionally on both sides of the busbar, i.e. both on the upper side and on the lower side facing away from the upper side.
  • the actuating lever or its element protruding through the recess can interact with a further element of the conductor connection terminal, e.g. with a section of the insulating material housing, as will be explained below with regard to the second fixing element.
  • the spring driver is arranged in the curved region of the conductor rail at least in the closed position. This is also conducive to the provision of a compact conductor connection terminal. That area of the clamping spring that is to be actuated by the spring driver can therefore be designed with only a small overhang over the conductor rail.
  • the Spring driver is preferably formed on the first guide portion of the operating lever. Due to the fact that the first guide section with the spring driver dips into the slot-shaped recess of the busbar, a low overall height of the conductor connection terminal can be achieved. In addition, the length of the actuating leg can thus also be reduced.
  • the conductor rail has a conductor feedthrough opening into which the contact leg and the clamping tongue dip.
  • the conductor connection terminal can be designed to be particularly compact, in particular with regard to the electrical contact insert.
  • the conductor feedthrough opening has wall sections that protrude from the busbar plane on all sides and form a passage of material. This enables good contacting of an electrical conductor and secure mechanical attachment of the electrical conductor.
  • the passage of material can be produced in a manner that is favorable in terms of production technology, e.g. in one piece from the material of the conductor rail.
  • the conductor connection terminal has a second conductor connection for connecting a second electrical conductor, the second conductor connection being electrically conductively connected to the first conductor connection via the second busbar section or being connectable via a connecting element.
  • the conductor connection terminal can be designed as a terminal block, for example.
  • the first conductor rail section extends towards its free end in a direction pointing away from the actuating lever.
  • the conductor insertion direction for inserting the first electrical conductor can be arranged favorably.
  • the outer surface of the manual operating section runs in the longitudinal direction of the operating lever essentially parallel to a second busbar section, which connects the first busbar section to the third busbar section, or essentially parallel to the third busbar section runs.
  • the outer surface of the manual operating portion is the surface that in the closed position away from the insulating housing when the operating lever is in the closed position. This allows the overall height of the terminal block to be minimized.
  • the actuating limb in the closed position, particularly when no electrical conductor is clamped at the first clamping point, the actuating limb initially runs along the first busbar section, starting from the clamping limb, and protrudes beyond the curved area.
  • the actuating leg can be arranged in a space-saving manner and can still be gripped by the spring driver without any problems when the actuating lever is moved into the open position.
  • the actuating limb protrudes from the clamping limb, the actuating limb having two spaced-apart side bars and a transverse bar connecting the side bars to one another at their free end, the side bars and the transverse bar having a driver opening for engaging a spring driver of a enclose the actuating lever of the conductor connection terminal.
  • the transverse web in combination with at least one area of the insulating material housing forms a safeguard against the actuating lever being pulled out of the insulating material housing, at least when the actuating lever is in the open position. Accordingly, no additional securing means, in particular no additional components, are required to secure the actuating lever against being pulled out in the open position.
  • the area of the insulating material housing that forms a safeguard against the actuating lever being pulled out of the insulating material housing forms a stop for the transverse web of the actuating leg.
  • the actuating lever can be pivoted from a closed position, in which a clamping edge, in particular a clamping edge of the clamping tongue, forms a clamping point with the busbar for clamping an electrical conductor, into an open position which the clamping edge is lifted off the busbar in order to open the terminal point.
  • the closed position of the actuating lever corresponds to a closed position of the terminal point, and the open position of the actuating lever to an open terminal point.
  • the insulating material housing has an opening which is covered by the actuating lever when the actuating lever is in the closed position, the opening leading to the clamping spring or other electrically conductive components of the conductor connection terminal.
  • the opening can be designed in particular as a lever passage slot in a canopy of the insulating material housing. In the closed position, the opening is covered, for example, via a manual actuation section of the actuation lever.
  • the canopy can be designed like a housing wall of the insulating material housing, which is offset somewhat inwards compared to the outer contour of the insulating material housing.
  • the insulating material housing can have a lever opening that allows the operating lever to be installed when the insulating material housing is fully assembled.
  • the previously mentioned opening can thereby form part of the lever opening.
  • the actuating lever can be fitted through the lever opening, so to speak, from above when the insulating housing is completely assembled, i.e. without further e.g. lateral openings.
  • the lever opening can be completely surrounded on the circumference by the material of the insulating material housing, i.e. by corresponding walls or other sections of the insulating material housing. If the operating lever is mounted in its final position in the conductor terminal, at least the manual operating section projects at least partially out of the insulating housing, i.e. the operating lever then extends through the lever opening.
  • the lever hole may have a simple shape such as a rectangular shape in plan view.
  • the lever opening can also have more complex shapes.
  • the lever opening can have a taper, so that the width of the lever opening changes over its length.
  • the taper can be realized by the canopy mentioned, so that the lever passage slot is formed as a narrower area of the lever opening between the canopy elements.
  • the width of the Lever opening is measured in the transverse direction of the conductor connection terminal, the direction perpendicular to the pivoting plane of the actuating lever being the transverse direction of the conductor connection terminal. In this way, the second guide section of the actuating lever can dip into the area of the lever opening formed with the taper when the actuating lever is in the closed position.
  • the operating lever can have lateral recesses through which the area of the operating lever that can enter the area of the lever opening formed with the taper is narrower than adjacent areas, eg narrower than the manual operating section. In the closed position, the canopy can be accommodated at least partially in these lateral recesses.
  • a canopy plane is defined by the surface of the canopy facing the outside of the insulating material housing. In the open position, the spring driver of the actuating lever can protrude outwards from the plane of the canopy.
  • the canopy can also serve as a stop and/or support element for the actuating lever when it is in the closed position.
  • the underside of the manual operating section can rest on the canopy.
  • the actuating element or the actuating lever can in particular be designed as an integral part of the conductor terminal, in contrast to an actuating tool which is not part of the conductor terminal and must be procured separately if a clamping point of the conductor terminal is to be opened. Due to the fact that the actuating element or the actuating lever is designed as an integral part of the conductor connection terminal, it is not necessary to procure a separate tool. The actuating element or the actuating lever is then permanently available for actuating the clamping spring.
  • the spring driver dips into the opening in the open position of the actuating lever.
  • the opening of the insulating material housing can also be filled in the open position, so that the conductor connection terminal is protected against accidental contact even in the open position. No additional component is required for this, rather the actuating lever with its spring driver can also fulfill this function.
  • the actuating lever has a second guide section that protrudes toward the lever passage slot has, through which the actuating lever is guided in the closed position.
  • additional guidance of the actuating lever in the closed area can be implemented, in particular in addition to a lower guide, through which the actuating lever is guided through its first guide section in the recess of the busbar.
  • the actuating lever has at least one laterally protruding third fixing element on the second guide section, by means of which the actuating lever can be fixed in the closed position in the area of the canopy. This allows the actuating lever to be fixed in the closed position in a simple and reliable manner.
  • the actuating lever has at least one second fixing element, by which the actuating lever is fixed in the open position.
  • the actuating lever can be securely fixed in the open position.
  • This fixation can be present as an alternative or in addition to the previously mentioned fixation by means of the fourth fixing element on the curved area of the conductor rail.
  • the second fixing element dips into a receiving pocket formed in the insulating material housing in the closed position.
  • the actuating lever can be secured against being pulled out in the closed position.
  • a type of reset brake for the actuating lever can also be implemented, so that any lever kickback that occurs is dampened. In particular, this also prevents the actuating lever from escaping or being flung out of the insulating material housing in the event of a lever kickback.
  • the actuating lever is located predominantly within the area surrounded by the outer contour of the insulating material housing in each actuating position. This has the advantage that the actuating lever is protected by the insulating material housing and only a small amount of additional external space is required in every operating state of the actuating lever, even when pivoting. In the open position, the actuating lever can be located in a substantial area of its longitudinal extension, at least to at least 30% or at least 40%, within the area surrounded by the outer contour of the insulating material housing.
  • the above-mentioned operating lever can also be designed differently than a lever, e.g. as an operating slide or other operating element. Accordingly, the invention also relates to a conductor terminal of the type mentioned above, in which, instead of the actuating lever, there is some type of actuating element for actuating the clamping leg.
  • the actuating leg in the case of a conductor terminal with an actuating element of any design, which interacts with an actuating leg protruding from the clamping leg to move the clamping tongue, the actuating leg has two lateral webs spaced apart from one another and a transverse web connecting the lateral webs to one another at their free end has, wherein the side bars and the transverse bar enclose a driver opening for engagement of a spring driver of the actuating element of the conductor terminal.
  • the spring driver has a width that changes over its extent, in particular that the spring driver becomes narrower towards its free end.
  • the width of the spring driver is measured in the transverse direction of the conductor connection terminal. This simplifies the insertion of the spring driver into the driver opening.
  • the spring driver can be designed as follows: a first and/or second and/or third spring driver area is formed on the spring driver.
  • the first spring driver area can be narrower than the second spring driver area.
  • the second spring tang portion may be narrower than the third spring tang portion.
  • the spring driver can additionally or alternatively narrow in another dimension than its width towards its free end, e.g. in the direction of its height.
  • the height of the spring driver is measured in a direction perpendicular to the pivoting plane of the actuating lever and perpendicular to the direction of the greatest longitudinal extent of the actuating lever, i.e. the overall length of the actuating lever.
  • the design of the spring driver such that it becomes narrower towards its free end in terms of its width can be designed in such a way that either a continuous reduction in width and/or a stepwise reduction in width takes place. Accordingly, at least one step and/or edge can be present with regard to the width dimension, whereby the step does not necessarily have to run at right angles, but in each can run at other angles.
  • the design of the spring driver such that it becomes narrower towards its free end in terms of its height can be designed in such a way that there is either a continuous reduction in height and/or a stepwise reduction in height. Accordingly, at least one step and/or edge can be present with regard to the height dimension, whereby the step does not necessarily have to run at right angles, but can run at any other angle.
  • the spring driver is rounded at its free end in a side view of the actuating lever, e.g. with a radius. Accordingly, there are no pointed areas and/or edges at the free end of the spring driver, but rather the rounded area mentioned.
  • the spring driver of the present invention can be relatively long and slender compared to prior art solutions.
  • the length of the spring driver can be, for example, at least 20% or at least 25% or at least 30% of the length of the operating lever in the bearing area.
  • the area of the operating lever that extends in the longitudinal direction of the operating lever from the spring driver to the rear end that faces away from the spring driver is considered to be the bearing area.
  • the proportion of the length of the spring driver can be, for example, at least 7% or at least 8% or at least 9%.
  • the third spring driver area forms a guide for the side bars of the actuating leg when the actuating element is moved into the open position. Accordingly, the side bars can each rest essentially on the third spring driver area. This avoids tilting between the actuating arm and the spring driver.
  • the actuating lever is supported in the open position at a first and a second support point spaced therefrom and the actuating lever is pulled against the first and second support point by a tensile force of the clamping spring acting on the spring driver from the actuating leg.
  • This has the advantage that the operating lever in the open position also by the Tensile force of the clamping spring is held and fixed, which has the advantage over a rigid fixation, for example by a locking element, that even with minor deflections from this actual open position, the actuating lever is pulled back towards the open position. In this way, the actuating lever is securely fixed even when external loads occur, such as strong vibration loads.
  • One support point can be formed, for example, on the insulating material housing, the other support point is located on the busbar.
  • the line of action of the tensile force of the actuating leg runs through between the first and the second bearing point.
  • the line of action of the tensile force of the actuating leg runs through a central area between the first and second bearing point, in particular in a range of 30% to 70% of the distance between the first and second bearing point.
  • the actuating leg extends through between the first and the second bearing point in the open position.
  • the actuating lever has a second fixing element, through which the actuating lever is supported in the open position at the first bearing point, the second fixing element forming an indentation in the outer circumference of the actuating lever.
  • a concave shape of a surface is understood as such an indentation.
  • a convex shape of a surface is understood to be a bulge.
  • a bearing surface is formed on the insulating material housing, which forms the first bearing point in the open position, the bearing surface being part of a bulge in the insulating material housing.
  • the second bearing point is arranged on the busbar, in particular in the form of a bulge of the busbar pointing towards the actuating lever.
  • the force application point of the tensile force in the operating lever in the open position is arranged in such a way that a torque acts on the operating lever, which is counteracted by the support of the operating lever at the first and second support point.
  • the actuating lever is thus permanently torque-loaded when it is in the open position, but is held in place by the bearing at the first and second bearing points. Accordingly, the operating lever does not have to be held in the open position manually.
  • a straight connecting line running through the first and the second bearing point has an intersection with the actuating leg, with an angle from the actuating leg to the straight connecting line being less than 90 degrees.
  • a straight line parallel to the connecting straight line can also have a point of intersection with the actuating leg. In this case, an angle of the actuating leg to the straight line parallel to the connecting straight line is less than 90 degrees.
  • the angle of the actuating leg to the connecting straight line or the straight line parallel thereto is greater than 20°, in particular greater than 30° or greater than 45°. This ensures that the actuating lever is supported particularly securely in the open position. The actuating lever remains securely in the open position even when exposed to vibration.
  • an angle in the range of 60° to 120° is formed between the plane of a housing surface of the insulating housing, on which the actuating lever protrudes from the insulating material housing in the open position, and a spatial plane running perpendicular to the pivoting plane of the actuating lever, which runs centrally through the manual actuating section of the actuating lever.
  • the angular range can start at 70°, 75° or 80° instead of at 60° with regard to the lower value.
  • the angle range can end at 110°, 105° or 100° instead of at 120°.
  • At least the second bearing point is formed by two bearing surfaces which are spaced apart from one another perpendicularly to the pivoting plane of the actuating lever and on which the actuating lever is supported.
  • the actuating lever is supported by the two bearing surfaces of the second bearing point and by the first bearing point in the manner of a three-point bearing. As a result, the actuating lever is held reliably in a mechanically defined manner.
  • three support points can be formed on the circumference of the operating lever.
  • a middle support point (second support point) of these three support points can be supported on the conductor rail.
  • the other two support points (first and third support point), which surround the central support point, can be supported on the housing of the conductor terminal.
  • the middle support point can be designed as a single support point or as two laterally offset support points. If there are two central support points, they can be arranged eccentrically in the transverse direction of the actuating lever and accordingly on both sides of a central plane of the actuating lever.
  • the middle support points can be realized by the arrangement of the two off-center fourth fixing elements, which will be described below.
  • the actuating lever can accordingly have at least three support points.
  • the first fixing element or the second fixing element can form such a support point.
  • two contact points can be formed by the fourth fixing element.
  • Another (fourth) support point can be formed if both the first fixing element and the second fixing element form such a support point.
  • the bearing surfaces of the second bearing point are arranged in respective spatial planes arranged parallel to the pivoting plane of the actuating lever and the first bearing point is arranged in a third, third spatial plane arranged parallel to the first and second spatial plane, which is between the first and the second spatial plane is arranged.
  • the actuating lever is supported in the open position at least at a first support point, the insulating housing having an intermediate wall on one side of which the first support point is formed and on the opposite side of which the clamping spring runs along .
  • the clamping spring can advantageously be integrated in the insulating material housing in the area of the intermediate wall.
  • the intermediate wall can be designed like an island made of insulating material within the insulating material housing. In this way, the insulating material housing is involved in supporting the actuating lever and other functionalities of the conductor connection terminal. This is also conducive to a compact construction of the conductor connection terminal.
  • the partition wall is supported and counter-mounted on the clamping spring with respect to the bearing force applied to the partition wall by the actuating lever at the first bearing point. Accordingly, the intermediate wall is clamped, so to speak, between two forces applied by the clamping spring, namely the bearing force transmitted by the actuating lever and a counterforce of the clamping spring.
  • a self-supporting system can advantageously be implemented.
  • a plastic component is supported against a metal component, which induces or initiates the force, which is advantageous in the event of the effect of moisture, which can lead to a reduction in the stability of the plastic material.
  • the partition wall is supported and opposed against the bearing force applied by the actuating lever at the first bearing point on the partition wall on the contact leg and/or on a spring bow, which connects the contact leg and a clamping leg of the clamping spring to one another
  • the application force of the actuating lever is caused by a tensile force transmitted from the actuating leg of the clamping spring to the actuating lever.
  • the intermediate wall is formed by solid insulating material or has at least one reinforcement, in particular at least one rib-shaped reinforcement.
  • the insulating material can be a plastic, for example.
  • clamping springs already mentioned that are explained below are suitable, for example, as clamping springs for a conductor connection terminal of the type explained above.
  • a clamping spring with a contact leg, a spring bow adjoining the contact leg and a clamping leg which adjoins the spring bow and ends with a clamping tongue, with an actuating leg protruding from the clamping leg and having two side bars which are integral with of the clamping spring and wherein the side bars are bent out from the clamping leg of the clamping spring with an average bending radius, and the clamping spring is stamped and bent from a flat metal sheet with a predetermined thickness, the ratio of the average bending radius to the thickness of the metal sheet being smaller than 3 is.
  • the average bending radius refers to a material center line of the metal sheet.
  • the thickness of the metal sheet of the clamping spring can be selected depending on the nominal conductor diameter or nominal conductor cross-section of the conductor terminal, for example as follows: Nominal conductor cross-section Thickness of the metal sheet 2.5mm 2 0.34mm 4mm 2 0.43mm 6mm 2 0.45mm 10mm 2 0.55mm
  • a tab protruding out of the plane of the driver opening adjoins the transverse web and has a curvature, the convex surface of the curvature pointing towards the driver opening.
  • a curved bearing area can be provided on the actuating leg, which can advantageously rest on the spring driver and can slide along it when the actuating lever pivots.
  • the tab is formed in one piece with the crossbar and is bent from the crossbar. This allows a simple production of the clamping spring with the actuating leg, for example in a stamping and bending process.
  • the free end of the actuating leg is bent with the transverse web in the direction pointing away from the spring bow. This allows a strong curvature to be provided on the tab without requiring excessive degrees of deformation during the bending process.
  • an edge formed at the free end of the tab points away from the driver opening. In this way, excessive wear of the spring driver of the operating lever is avoided. In particular, contact between the possibly sharp-edged end edge of the tab and the spring driver can be avoided.
  • the width of the driver opening which is defined by the inner distance between the side bars, varies over the longitudinal extent of the actuating arm, in particular with a width reduction toward the free end of the actuating arm.
  • the reduction in width can be formed in steps. In this way, elements of different widths can be guided through the driver opening, e.g. on the one hand the spring driver and on the other hand other elements such as parts of the clamping spring, for example the contact leg.
  • the contact leg extends through the driver opening, in particular through the wider area of the driver opening.
  • the wider area of the driver opening is that area in which the inner distance between the side bars is greater than in one or more other areas of the driver opening.
  • the clamping tongue tapers from the root area to the clamping edge at the free end.
  • the root area is that part of the clamping spring where the clamping leg branches into the clamping tongue and the actuating leg.
  • the root of the clamping tongue and the root of the actuating arm are thus located in this part of the clamping spring.
  • the clamping leg has a clamping leg arc formed between the spring bow and the root area, and that the actuating leg has a length from the root area to a force introduction area which is designed for the action of an actuating force on the actuating leg. which is greater than the length of the clamp leg from the root region to the apex of the clamp leg arc.
  • the length of the actuating leg that is effective with regard to the actuation measured from the branching point of the actuating leg from the clamping leg to the curved bearing area, is greater than the length of the clamping leg, measured from the branching point of the actuating leg from the clamping leg to the apex of the spring bows.
  • a spring with a shortened buckling length can be realized.
  • Such a clamping spring is better protected against undesired bending or buckling of the clamping leg when a clamped electrical conductor is pulled from the outside.
  • the clamping limb has a clamping limb arch formed between the spring arc and the root region, which abuts against a part of the insulating material housing of the conductor connection terminal when the actuating lever moves from the closed position to the open position.
  • the buckling length of the clamping leg can be advantageously shortened.
  • the smallest width of a side bar is at most 20% of the largest width of the clamping leg.
  • very thin side webs can be provided, which contributes to a saving in material on the clamping spring and in addition to the compact design of the conductor connection terminal. Since the side bars only have to transmit tensile forces, it can easily be implemented in a very narrow form.
  • the smallest width of a side bar is at most four times the thickness of the metal sheet.
  • the actuating lever has a spring driver which extends through the driver opening at least in the open position. In this way, the clamping leg can be deflected by the spring driver of the actuating lever.
  • the spring driver extends through the narrower area of the driver opening at least in the open position. Since only tensile forces have to be transmitted by the actuating leg and its side bars, these can be made correspondingly thin, which leads to a material saving of the material of the clamping spring.
  • the clamping spring in which at least the clamping tongue is provided by an area punched out of the actuating leg, in which the driver opening is formed, the clamping tongue can be provided with a relatively large clamping width, which in turn allows relatively large conductor cross-sections to be clamped on.
  • a curved bearing area is formed on the actuating leg in the area of the curvature of the tab, with the actuating lever having a socket bearing on which the curved bearing area slides along on the confirmation leg of the clamping spring when the actuating lever pivots.
  • the pan bearing can be arranged in particular on the spring driver.
  • the curved bearing portion may have a constant curvature or a varying curvature. In any event, there is a curve throughout the entire extent of the curved bearing area and not a sharp edge or kink. The smallest radius of curvature of the curved bearing area can be greater than or equal to half the thickness of the metal sheet of the clamping spring.
  • the actuating leg starting from the clamping leg, first runs along the first busbar section and at least with part of the driver opening via the Bending area of the busbar protrudes.
  • the spring driver can be inserted through the busbar into the driver opening without any obstacle.
  • the conductor connection terminal can be designed to be particularly compact, for example in that the actuating leg runs closely along the first busbar section.
  • the actuating leg of the clamping spring slides at least partially on the conductor rail when the clamping leg is displaced. Accordingly, when the actuating lever is pivoted, the actuating leg is additionally guided by the conductor rail.
  • the actuating leg can run at least approximately parallel to the busbar, e.g. parallel to the first busbar section.
  • the conductor connection terminal can be implemented in a particularly compact manner.
  • a relatively large lever arm is also realized for the actuation of the clamping leg.
  • the operating force of the operating lever can be reduced.
  • a small distance can be realized between the actuating leg and the busbar, which is also beneficial for a compact construction of the conductor terminal.
  • the distance between the actuating leg and the busbar in this area can be smaller than the material thickness of the busbar in this area or smaller than twice the material thickness of the busbar.
  • the actuating lever has a spring driver which does not touch the actuating leg in the closed position. Wear between the spring driver and the actuating arm in the closed position is thus avoided.
  • the spring driver can certainly extend at least partially into the driver opening.
  • the actuating lever has a spring driver which, in the closed position, does not extend into the driver area of the clamping spring, for example not into the driver opening. This maximizes the distance between the spring driver and the actuating arm.
  • a guide element is formed on the insulating material housing, which forms a housing-side guide for the actuating arm at least in certain actuation situations and/or pivoted positions of the actuating lever.
  • the actuating leg can be guided by the guide element in particular when the actuating lever executes a pivoting movement close to the open position. This counteracts excessive deflection or bending of the actuating arm, particularly at the transition to the clamping arm.
  • the actuating lever initially performs a certain idle stroke during the pivoting movement from the closed position into the open position without actuating forces originating from the clamping spring.
  • the actuating lever can initially be actuated with essentially no effort, e.g. with the fingertip, in order to then be able to grip it manually.
  • the effective load arm of the actuating lever is shorter in the open position than in the closed position. This allows an ergonomic and haptically pleasant actuation of the actuating lever.
  • the changed transmission ratio keeps the actuating force at a comfortable level, e.g. at a force level that remains essentially constant over the pivoting angle.
  • the transverse web and/or the curved bearing area slides along on the spring driver, in particular on the socket bearing, and thereby moves to the instantaneous pole of the actuating lever approximates, e.g. B. the effective instantaneous center in each case during the pivoting movement of the actuating lever.
  • the shortening of the load arm can be realized in a reliable manner during the opening movement of the operating lever.
  • the extent to which the transverse web approaches the instantaneous center of the actuating lever when the actuating lever moves from the closed position to the open position can be, for example, at least 5% or at least 10% of the length of the spring driver, measured in the longitudinal direction of the actuating lever.
  • the conductor connection terminal has at least one force reduction mechanism, by which the amount of the contact force is reduced when the actuating lever is released from the latched open position and/or can be reduced when the actuating lever engages in the open position.
  • the contact point that is loaded with the contact force is relieved when the actuating lever is released.
  • the amount of the tracking force can be reduced more or less by the force reduction mechanism, up to a complete elimination of the tracking force (tracking force equal to zero). Accordingly, by the force reduction mechanism, those members which are loaded at the contact point with the bearing force can be separated from each other. For example, a region of the actuating lever that is supported on the power rail can be lifted off the power rail.
  • the force reduction mechanism is at least partially formed by mechanical elements of the actuating lever, the clamping spring and/or the insulating housing. Accordingly, no additional components are required to form the force reduction mechanism or at least its essential parts. Accordingly, the force reduction mechanism can be realized in a very simple manner without complicated structures.
  • the mechanical elements are formed by interacting contours of the operating lever, the clamping spring and/or the insulating housing.
  • the force reduction mechanism can be formed by the first bearing point in combination with the point of application of the clamping spring on the actuating lever, e.g. by the contact point between the first fixing element of the actuating lever and the second locking edge of the insulating material housing, in combination with the socket bearing of the actuating lever and the curved bearing area. which is formed on the actuating arm of the clamping spring.
  • the first bearing point and the contact point between the actuating lever and the clamping spring can be arranged in such a way that when the actuating lever is moved from the open position in the direction of the closed position, there is initially a tilting moment which is used to relieve the load the contact point of the actuating lever on the conductor rail and the previously mentioned lifting at this point.
  • the contact force can be reduced by the force reduction mechanism to an amount that is lower is the magnitude of the force acting on the actuating lever from the clamping spring via the actuating arm.
  • the contact point between the fixing element arranged on the actuating lever and the counter-fixing element can be reduced to such an extent that the aforementioned lifting of the actuating lever is made possible at this point.
  • the force reduction mechanism is set up to reduce the contact force by shifting the force of the clamping spring acting on the actuating lever to another contact point of the actuating lever at which the actuating lever is supported in the conductor terminal.
  • the actuating lever is supported on a main contact point in the conductor terminal, via which the highest amount of force of the clamping spring acting on the actuating lever can be transmitted to at least one other element of the conductor terminal, the main contact point being activated when the Actuating lever over its pivoting range is at least twice, at least three times or at least four times discontinuously mobile.
  • the location of the main contact point can thus be changed several times in the course of the pivoting movement of the actuating lever.
  • the change can be discontinuous, i.e. erratic. This is also to be regarded as an independent aspect of the present invention.
  • a pivoting mechanism of the actuating lever can be implemented, which enables a comparatively complex, discontinuous movement sequence, which in turn enables particular advantages in terms of haptics for the user and the protection of the components.
  • the comparatively complex sequence of movements can, however, be made possible by design features that can be implemented relatively easily, so that the conductor connection terminal can nevertheless be provided at low cost.
  • a first location of the main contact point is formed in the fixed open position between the busbar and a region of the actuating lever resting on the busbar.
  • the first location of the main contact point can be, for example, the second bearing point.
  • the operating lever is supported in the open position at a first and a second support point spaced therefrom, the operating lever being supported on the insulating material housing at the first support point and the operating lever on the conductor rail at the second support point is superimposed, wherein a second location of the main contact point is formed at the first bearing point of the operating lever on the insulating material.
  • the actuating lever has at least one laterally protruding bearing element, which is spaced apart from the busbar in the entire pivoting range, and a third location of the main contact point is formed between the lateral bearing element of the actuating lever and the insulating housing.
  • the laterally protruding bearing element thus does not have the function of an axis of rotation in the sense of a fixed bearing, but forms only a temporary bearing of the actuating lever in the sense of a support relative to the insulating material housing in certain pivoting situations of the actuating lever.
  • the actuating lever has a first guide section, which dips into a recess in the conductor rail over at least a portion of the pivoting range, with a fourth location of the main contact point being formed between the first guide section and the insulating housing.
  • the actuating lever has at least one bearing projection for supporting the actuating lever on the busbar, which protrudes laterally from the actuating lever in relation to the first guide section, with a fifth location of the main contact point being formed between the bearing projection of the actuating lever and the busbar .
  • the first bearing point forms a first instantaneous center of the pivoting movement of the actuating lever when the actuating lever is released from the latched open position.
  • a multiple function of the first support point can advantageously be realized, namely in the open position for supporting the actuating lever and for its fixation, and when releasing the actuating lever as the instantaneous center and second location of the main contact point.
  • the conductor connection terminal explained above can, for example, be designed as a terminal block, e.g. as the terminal block mentioned at the outset.
  • the first conductor connection has an actuating lever that can be actuated without tools, the actuating lever being pivotably mounted in the insulating housing in order to actuate the spring-cage terminal of the first conductor connection, and the actuating lever having a manual actuating section for manually actuating the actuating lever.
  • the actuating section of the actuating lever of the terminal block projects at least partially beyond the outer contour of the insulating housing over the entire pivoting process.
  • the free end of a manual actuating section (actuating handle) of the actuating lever can protrude beyond the outer contour of the insulating material housing. This allows easy operation of the operating lever in the vicinity of the closed position.
  • the actuating lever when it is placed in the open position, automatically maintains this position in the open position. This is ensured by the construction of the conductor connection terminal.
  • the automatic holding of the operating lever in the open position can be realized by its support at the first and second support point.
  • the actuating lever can be held in the open position in that it is pulled against the first and the second bearing point with a tensile force exerted on the actuating lever by the clamping spring.
  • the actuation of the conductor terminal by the actuating lever differs from the prior art in that the actuating lever transmits a tensile force to the clamping spring via its spring driver in order to deflect the clamping leg. Accordingly, no compressive force is transmitted, as is the case, for example, with actuation solutions with a pusher.
  • Another difference is the type of manual operation of the operating lever as opposed to a pusher. In the present invention, it is advantageous to manually apply a pulling force to the operating lever at the manual operating portion to move the operating lever from the closed position move to the open position. In the course of this movement, the manual operating force can also be changed to a pushing force.
  • the conductor connection terminal according to the invention can be designed in such a way that the conductor insertion opening is formed as part of the insulating material housing and not as part of other elements, such as the operating lever. In this way, good accessibility of the conductor entry opening and an electrical conductor inserted into the conductor entry opening can be achieved.
  • the actuating lever is mounted in the insulating housing, i.e. corresponding mounting elements are formed within the insulating housing.
  • one or more first conductor connections and/or one or more second conductor connections can be present.
  • the second conductor connection has an actuating opening for inserting a separate actuating tool to open the second clamping point.
  • actuating tool can be a screwdriver, for example.
  • the second clamping point can also have a lever actuation for opening, e.g. in that the terminal block is designed with a further actuating lever, which is used to open the second clamping point.
  • the second conductor connection has an actuating element designed as a pusher for opening the second clamping point.
  • the push button can be part of the terminal block.
  • the second conductor connection can also be in the form of a spring clamp connection with a clamping spring for clamping connection of the second electrical conductor.
  • the second conductor connection has an insulation displacement connection or a screw connection for connecting a second electrical conductor. This allows an alternative implementation of the second conductor connection if this is not to be in the form of a spring clamp connection.
  • the actuating section of the actuating lever of the terminal block projects at least partially beyond the outer contour of the insulating housing over the entire pivoting process. This allows easy manual operation of the operating lever.
  • the operating lever is easy to grip and easy to operate with one finger.
  • the operating section can be easily felt.
  • the first conductor connection has a first busbar section to which the first electrical conductor can be connected by means of the clamping spring
  • the second conductor connection has a third busbar section to which the second electrical conductor can be connected
  • the first busbar section is electrically conductively connected to the third busbar section or can be connected via an electrical connecting element of the terminal block.
  • the first and third bus bar sections may be part of a common bus bar, i.e. permanently connected together, or they may be separate bus bar sections which are connected together only when required, such as with a disconnect terminal.
  • the terminal block has a continuous busbar from the first busbar section to the third busbar section. Accordingly, the busbar produces an electrically conductive connection from the first busbar section to the third busbar section.
  • the conductor rail can be formed in one piece or be composed of individual parts.
  • the busbar can run in a straight line or at least essentially in a straight line in the second busbar section and in the third busbar section.
  • the busbar can also have one or more gradations in the second busbar section and/or in the third busbar section, e.g. such that, starting from the curved area, there is a gradation in the second busbar section and/or in the third busbar section, through which the further course of the busbar
  • the areas of the second and/or third busbar section preceding the area of curvature are lower than the area of curvature. In this way, lower-lying conductor connection points can be realized in the second and/or third busbar section, as a result of which the conductor connection terminal can be designed to be particularly compact and small.
  • the first conductor connection has a first conductor entry opening
  • the second conductor connection has a second conductor entry opening
  • the actuating lever is arranged with at least the majority of its longitudinal extension between the first and the second conductor entry opening. In this way, the actuating lever is arranged relatively centrally in the terminal block and therefore requires little additional space.
  • the first conductor connection has a first conductor insertion direction, in which the first electrical conductor can be guided through the first conductor insertion opening to the first clamping point
  • the second conductor connection has a second conductor insertion direction, in which the second electrical conductor can be guided through the second conductor insertion opening can be guided to the second clamping point
  • the first conductor insertion direction being arranged at an angular offset at an angle to the second conductor insertion direction.
  • the terminal block has at least one mounting rail fastening element on a mounting rail fastening side, by means of which the terminal block can be fastened to a mounting rail. This allows the terminal block to be fastened reliably and in accordance with standards, and a large number of terminal blocks can be lined up on the mounting rail.
  • the first conductor insertion opening is fully or at least partially visible in a plan view of the housing side of the terminal block facing away from the mounting rail fastening side. In this way, the user can easily see where the first electrical conductor is to be inserted, especially when the terminal block is already attached to the mounting rail.
  • the first conductor insertion opening is arranged below the operating lever in a top view of the housing side of the terminal block facing away from the mounting rail attachment side and is fully or at least partially visible in every pivoted position of the operating lever.
  • the first conductor insertion opening thus remains at least partially visible, i.e. it is at least not completely covered by the operating lever.
  • the actuating lever in an ergonomically favorable and space-saving manner and, in particular, to allow the actuating section of the actuating lever to project to a certain extent beyond the outer contour of the insulating material housing.
  • the actuating lever is embedded in the side of the housing of the insulating material housing of the terminal block that faces away from the mounting rail fastening side. This allows space-saving accommodation with good accessibility of the actuating lever.
  • the outer surface of the manual actuation section of the actuation lever in the closed position follows the surface contour of the insulating housing adjoining the outer surface of the manual actuation section. Accordingly, the outer surface of the manual operating section adapts to the surface contour of the insulating material housing, so that there is essentially no shoulder or step-like transition. Thus, the outer surface of the manual operating section can form a continuous surface with the housing top of the insulating material housing.
  • the actuating lever is designed to be self-retaining in the open position. This has the advantage that the operating lever does not have to be held in place by the user.
  • the actuating lever can be locked, for example by one or more of the first, second or fourth fixing element.
  • the indefinite term “a” is not to be understood as a numeral. If, for example, a component is mentioned, this is to be interpreted in the sense of "at least one component”. If angles are specified in degrees, these refer to a circular measurement of 360 degrees (360°).
  • the conductor terminal 1 has an insulating material housing 2 , a busbar 3 , a clamping spring 4 and an actuating lever 5 as an actuating element for actuating the clamping spring 4 .
  • the insulating material housing 2 has a conductor insertion opening 20 through which an electrical conductor can be inserted in a conductor insertion direction L1 and guided to a first clamping point 7 of a first conductor connection 6, where the electrical conductor can be clamped by means of the clamping spring 4 and the busbar 3 by spring force.
  • the insulating material housing 2 also has a busbar channel 22 through which at least part of the busbar 3 is guided and is at least partially fixed and/or mounted there.
  • the busbar 3 has a first busbar section 30 and a second busbar section 31 .
  • the first busbar section 30 is connected to the second busbar section via a curved region 35, so that the busbar 3 as a whole has a curved and/or angled shape.
  • the second busbar section 31 is arranged at least predominantly within the busbar duct 22 .
  • the busbar 3 has a conductor feedthrough opening 36 through which an electrical conductor that is to be clamped can be guided.
  • the conductor feedthrough opening 36 can be from the first busbar section 30 be surrounded molded side walls z. B. in the form of a passage of material 32 may be formed.
  • the conductor feedthrough opening 36 can have wall sections that protrude from the busbar plane on all sides and form the material passage 32 .
  • the clamping spring 4 has a contact leg 40 via which the clamping spring 4 is supported against the spring forces introduced by the clamping leg 43 .
  • the contact leg 40 can be supported on the busbar 3 in the first busbar section 30 . As shown, the support is provided, for example, by the free end of the contact leg 40 resting on the inside of the conductor feedthrough opening 36 and/or the material passage 32.
  • the clamping spring 4 extends further via the spring bow 41 to the clamping leg 43. From the clamping leg 43 the actuating arm 42 protrudes, the actuating arm 42 being at a relatively large angle, e.g. B. greater than 45 degrees or greater than or equal to 90 degrees, from the clamping leg 43 is bent.
  • the actuating leg 42 ends at its free end with a transverse web 48, which ends in figure 1 unrecognizable driver opening 46 limited.
  • a material section of the clamping spring material is bent to form a tab 93 which protrudes from the rest of the actuating arm 42 and has at least part of a curved bearing area 49 of the actuating arm 42 .
  • the curved bearing area 49 forms, together with the socket bearing 59 of the actuating lever 5, a type of bearing made up of a cylinder and a cylindrical shell, similar to a ball-and-socket bearing.
  • the clamping leg 43 extends away to a clamping tongue 44 which is bent from the clamping leg 43 in the opposite direction than the actuating leg 42 .
  • the clamping tongue 44 ends at the free end of the clamping leg 43 with a clamping edge 45.
  • the clamping edge 45 together with the busbar 3, i. H. the conductor feed-through opening 36 and/or the material passage 32, the first clamping point 7 of the first conductor connection 6 for an electrical conductor to be clamped there. Accordingly, the contact leg 40 and the clamping tongue 44 dip into the conductor feedthrough opening 36 .
  • the conductor terminal 1 has an actuating lever 5, which is mainly arranged in the area surrounded by the insulating material housing 2 and essentially extends outwards with a manual actuating section 50, e.g. an actuating handle, where manual actuation of the actuating lever 5 can take place.
  • a manual actuating section 50 e.g. an actuating handle
  • the first terminal point 7 can be opened or getting closed. If the actuating lever 5 is in the in figure 1 shown closed position, the first clamping point 7 is closed. If the operating lever 5 is moved to the open position (as in figure 4 shown), the first clamping point 7 is open. In this open position, an electrical conductor can be inserted into the first clamping point 7 or removed therefrom without any effort, since actuation of the operating lever 5 moves the clamping edge 45 away from its contact point on the conductor rail 3 or the electrical conductor.
  • the conductor insertion direction L1 can be oriented obliquely to the extension direction of the manual operating section 50 . Accordingly, an angle can be formed between the extension of the outer surface of the manual operation section 50, which is approximately flush with the housing surface, and the conductor insertion direction L1.
  • the angle can be relatively small, e.g. B. in the range of 20 to 60 degrees.
  • the actuating lever 5 is pivotably mounted in the insulating housing 2 . In this case, no fixed bearing axis is provided, rather the actuating lever 5 can also carry out certain displacement movements in the course of a pivoting movement from the closed position to the open position and vice versa.
  • the actuating lever 5 has a test recess 51 penetrating the actuating lever 5, e.g. B. in the area of the manual operating section 50.
  • the test recess 51 is substantially aligned with the test opening 23 of the insulating housing 2.
  • the test opening 23 extends up to the clamping spring 4, z. B. up to the spring arc 41. If a test pin is inserted through the test recess 51 and the test opening 23, the clamping spring 4 can be electrically contacted in this way and an electrical measurement can be carried out.
  • the clamping spring 4 is fixed via an overload protection element 29 so that a counter bearing is created for the test pin. In addition, excessive movement and stress on the clamping spring 4 is prevented by the overload protection element 29 in the insulating housing 2 .
  • the overload protection element 29 can be designed as an island-shaped material area of the insulating material housing 2, which is arranged inside the spring bow 41.
  • the clamping spring 4 can bear against the overload protection element 29 with one or more areas, for example the spring bow 41 and/or the clamping leg 43 , ie abut against the overload protection element 29 .
  • the actuating lever 5 is guided, supported and fixed in certain positions such as the closed position and the open position in the conductor connection terminal 1 in several respects.
  • the actuating lever 5 has a first fixing element 52 in the lower area, i. H. the part of the operating lever 5 remote from the manual operating section 50, and a second fixing member 53 in the rear area, i.e. the area facing away from the spring driver 54.
  • the first and/or the second fixing element 52, 53 can be designed as a latching element, for example.
  • the first and/or the second fixing element 52, 53 can be designed like a material projection or cam.
  • the fixing elements 52, 53 can be formed directly on the material of the operating lever 5.
  • the actuating lever 5 also has a first guide section 57, via which the actuating lever 5 is guided during a pivoting movement, in particular in the conductor rail 3, and is secured against tilting to the side.
  • the first guide section 57 runs through a recess 33 in the busbar 3, e.g. a recess 33 in the first busbar section 31.
  • the recess can be designed as a longitudinal slot, for example. If the actuating lever 5 is pivoted, z. B. from the closed position to the open position, the first guide section 57 runs through this recess 33. Provision can also be made for the actuating lever 5 to run along an inner guide contour of the insulating material housing during a pivoting movement with the second fixing element 53 and thereby is additionally supported and / or guided.
  • the actuating lever 5 serves to actuate the clamping spring 4.
  • the actuating lever 5 has a spring driver 54 which is shaped like a driver tooth and, in the mounted state, protrudes from the actuating lever 5 in the direction of the clamping spring 4, in particular in the direction of the actuating leg 42 .
  • the spring driver 54 in the closed position is initially not in engagement with the actuating leg 42, so that no spring loading acts on the actuating lever 5 in this closed position.
  • the spring driver 54 can be located, for example, at least in the closed position in the area of the curved area 35 of the conductor rail 3.
  • the spring driver 54 merges into a bearing area of the actuating lever 5, which in this case forms a socket bearing 59.
  • this socket bearing 59 interacts with the curved bearing area 49 of the clamping spring 4 during a pivoting movement of the actuating lever 5 .
  • the operating lever 5 is in the in figure 1 shown closed position fixed by means other than the first and the second fixing element 52, 53.
  • the second fixing element 53 is arranged within a free space in the insulating material housing 2, specifically in a receiving pocket 28.
  • the second fixing element 52 is located in the Near a first latching edge 21 of the insulating material housing 2, but which has no essential function in the closed position.
  • a second latching edge 91 is also formed in the insulating material housing 2 and has a function, as described below, in the open position of the actuating lever 5 .
  • the structure and functioning of a second guide section 55 of the actuating lever 5 will be discussed below with reference to further illustrations.
  • the actuating lever 5 can be secured in the closed position against falling out of the insulating material housing 2 . Furthermore, the accommodation of the second fixing element 53 in the accommodation pocket 28 ensures that the actuating lever 5 is rotated out in the event of a kickback when the actuating lever 5 is transferred from the open position to the closed position. A further safeguard against the operating lever 5 falling out or being removed is implemented by the canopy 24, in particular in the open position.
  • a guide element 95 is also formed on the insulating material housing 2 . At least in certain actuation situations and/or pivoted positions of the actuation lever 5, the guide element 95 forms a housing-side guide for the actuation arm 42. For example, the actuation arm 42 can slide along the guide element 95 at least temporarily during a pivoting movement of the actuation lever into the open position.
  • Recognizable conductor terminal 1 can be formed as a single terminal, as shown, or as part of a further conductor terminals comprehensive conductor terminal, z. B. as part of the below based on the 15 explained conductor terminal.
  • the figure 2 shows as a further feature of the insulating material housing 2 a canopy 24 arranged below the manual operating section 50, ie a kind of boundary wall of the insulating material housing 2, which ensures that the current-carrying elements within the conductor terminal 1 are shielded from the outside environment, so that touch protection (finger safety) of the conductor terminal 1 is created in particular in the open position of the actuating lever 5.
  • the canopy 24 interacts with the second guide section 55, as will be explained below with reference to other sectional drawings.
  • the first fixing element 52 is just before it reaches the second latching edge 91 .
  • the second fixing element 53 is just before it reaches the first latching edge 21.
  • the rear stop 94 of the actuating lever 5 on the insulating material housing 2 in the area of the outer surface of the insulating material housing now serves as a stop and for the further movement of the actuating lever 5 Pivot for the operating lever 5 to the open position according to figure 4 to get.
  • the spring driver 54 is initially moved essentially in a translatory manner along the second busbar section 31 .
  • the actuating lever 5 executes a “downward movement” essentially vertically aligned with the translatory movement due to the spring force applied to the spring driver 54.
  • Figure B shows how the actuating leg 42 was gripped at the end by the spring driver 54 and is guided further via the socket bearing 59 .
  • the socket bearing 59 is adapted to the convex outer contour of the curved bearing area 49 with regard to its shape, ie with regard to the concave inner contour, so that the curved bearing area 49 can slide within the socket bearing 59 with little friction.
  • the actuating leg 42 is deflected and the clamping leg 43 is moved accordingly, so that the clamping tongue 44 moves from its original, in figure 1 recognizable position.
  • the figure 4 shows the actuating lever 5 now in the open position, ie at the end of the pivoting movement.
  • the actuating lever 5 can still be rotated by a small pivoting angle, e.g. B. maximum 5 degrees or maximum 10 degrees, to be resistant to damage, but the actual open position is already in the in figure 4 position shown. If the actuating lever 5 is pushed over, this over-pushing movement is limited by a rear stop 94 on the insulating material housing. Based on the entire pivoting path or pivoting angle of the actuating lever 5, the overbending angle range of the actuating lever 5 is a maximum of 5% of the entire pivoting angle range until the rear stop 94 is reached.
  • a small pivoting angle e.g. B. maximum 5 degrees or maximum 10 degrees
  • the operating lever 5 is located in each operating position predominantly within the area surrounded by the outer contour 27 of the insulating material housing 2 .
  • the actuating lever 5 is also in the open position in a significant area of its longitudinal extent, at least to at least 30% or at least 40%, within the area surrounded by the outer contour 27 of the insulating material housing 2 .
  • the actuating lever 5 is mounted in a particularly robust manner and therefore cannot be damaged as easily and/or cannot jam as easily.
  • a robust support of the actuating lever 5 in the insulating material housing 2 is realized.
  • the actuating lever 5 has here, ie in the transition from the position according to figure 3 according to the position figure 4 , in addition to the pure pivoting or rotary movement, a displacement movement is also performed, i.e.
  • the actuating lever 5 is now held securely in this position in that the actuating lever 5 is pulled by the tensile force applied by the actuating leg 42 against corresponding bearing points 84, 85 arranged to the left and right of the line of action of the tensile force, namely on the one hand a first bearing point 84, which is formed between the first fixing element 52 and the second latching edge 91, and on the other hand a second bearing point 85 in the area of the cutout F.
  • This second bearing point 85 can be formed between the fourth fixing element 64 and a corresponding curved area 35 of the busbar.
  • the position of the actuating lever 5 can be secured via a two-point contact of the actuating lever 5 on the insulating housing 2 and/or the busbar 3 and essentially central application of force by the clamping spring 4 via the actuating leg 42 .
  • This type of power transmission creates a kind of funnel shape of the force effects, by means of which the operating lever 5 is particularly securely secured against unwanted changes in position, for example due to vibrations.
  • the Figure 4a clarifies, in particular through the detail enlargement H, how the fourth fixing element 64 rests on the curved region 35 and is fixed there in a form-fitting manner.
  • the second fixing element 53 protrudes through the recess 33 of the busbar 3, so that part of the second fixing element 53 protrudes below the second busbar section 31 and can be seen there.
  • the Figure 4a also clarifies the support of the curved bearing area 49 of the actuating leg 42 on the socket bearing 59.
  • the figure 4 also shows that an electrical conductor 92 with an end stripped area is inserted into the conductor connection terminal 1 and the stripped area is arranged in the area of the first clamping point 7 . If the operating lever 5 now again moved into the closed position, the clamping leg 43 springs back until the clamping edge 45 rests against the stripped area of the electrical conductor 92 and presses it against the busbar 3, e.g. against the inside of the conductor feedthrough opening 36 or the material passage 32.
  • the intermediate wall 26 is in turn supported and counteracted by the clamping spring 4 at the first bearing point 84 against the bearing force of the actuating lever 5, since the clamping spring 4 in the area of the contact leg 40 and/or the spring bow 41 is opposite side against the intermediate wall 26 presses.
  • a self-supporting system can advantageously be implemented.
  • a plastic component is supported against a metal component, which induces or initiates the force, which is advantageous in the event of the effect of moisture, which can lead to a reduction in the stability of the plastic material.
  • the actuating lever 5 is supported on the upper side of the busbar 3 , in particular in the second busbar region 31 , via laterally protruding shoulder-shaped bearing projections 58 .
  • the bearing projection 58 can form a bearing point for the actuating lever 5 on the conductor rail 3 , particularly in the open position, and the bearing point can be arranged in the curved region 35 .
  • the first fixing element 52 can also run along an inner guide contour of the insulating material housing during a pivoting movement of the actuating lever 5, e.g. during a pivoting movement from the open position to the closed position.
  • the contact between the bearing projection 58 on the operating lever 5 and the bearing area 34 serving to support the movement of the operating lever 5 towards the open position can be eliminated, with the operating lever 5 being lifted off the busbar 3 .
  • This also serves, among other things, to reduce wear or abrasion on the actuating lever 5.
  • the figure 5 shows that the actuating lever 5 in the closed position does not or essentially does not protrude beyond the outer contour 27 of the insulating material housing 2.
  • the figure 6 with the sectional view in the sectional plane G illustrates the fixation of the actuating lever 5 in the closed position.
  • the operating lever 5 has the second guide section 55 which protrudes downwards on the manual operating section 50 and which, at least in this position of the operating lever 5 , extends through a lever passage slot 25 in the canopy 24 .
  • Laterally protruding third fixing elements 60 are arranged on the second guide section 55, for example integrally formed on the second guide section 55, which in the closed position engage behind the underside of the edge regions of the canopy 24 and in this way fix the actuating lever 5.
  • the canopy 24 can be formed by projections protruding inwards from opposite side walls of the insulating material housing 2 .
  • the insulating material housing 2 such as the lever passage slot 25, which is covered by the operating lever 5 when the operating lever 5 is in the closed position and is therefore shielded from the outside environment, with the opening to electrically active components arranged in the insulating material housing 2 such as the clamping spring 4 or busbar 3, and the spring driver 54 in the open position of the actuating lever 5 at least partially closes this opening, at least to the extent that protection against accidental contact is provided.
  • the Figure 9a shows the actuating lever 5 in a view in which the bearing projection 58 can be clearly seen.
  • the bearing surface formed by the bearing projection 58 is shown in FIG Figure 9a shown hatched.
  • the actuating lever 5 can be designed as a material- and weight-optimized component with a series of recesses which are interrupted by stiffening walls and in this way ensure the necessary robustness and rigidity of the actuating lever for the actuating movements.
  • the operating lever 5 can, for. B. be made in one piece as a plastic component, z. B. as an injection molded part.
  • the Figure 9a also shows that the actuating lever 5 can have lateral recesses 89 .
  • the lateral recesses 89 can be arranged, for example, in the area of the second guide section 55 and/or the third fixing element 60 .
  • the canopy 24 can be accommodated at least partially in these lateral recesses 89 in the closed position.
  • the Figure 9b shows the conductor terminal 1 in the open position of the operating lever 5.
  • the lever feedthrough slot 25 in the canopy 24 is at least largely closed in this open position.
  • FIG. 12 also shows that the insulating material housing 2 can have a lever opening 88 which allows the actuating lever 5 to be installed when the insulating material housing 2 is fully assembled.
  • the actuating lever can be assembled through the lever opening 88, so to speak, from above.
  • the lever opening 88 can be completely surrounded on the circumference by the material of the insulating material housing 2, i.e. by corresponding walls or other sections of the insulating material housing 2.
  • the Figure 9c illustrates the special proportions that the operating lever 5 can have according to the invention.
  • the actuating lever 5 In the longitudinal direction of the actuating lever 5, ie in direction a, the actuating lever 5 has the length a.
  • the actuating lever 5 In the rear area, the actuating lever 5 has its bearing area, which includes the third area 63, for example.
  • the actuating lever 5 is mounted in the insulating material housing 2 in this storage area.
  • the bearing area has a length c in the longitudinal direction.
  • the Figure 9c the length b of the spring driver 54, which extends from the root area of the spring driver 54, which adjoins the third area 63, to the free end in the longitudinal direction of the operating lever 5.
  • the ratio b/c can be, for example, at least 0.2 or at least 0.25 or at least 0.3.
  • the ratio b/a can be at least 0.07 or at least 0.08 or at least 0.09, for example.
  • the Figures 10 and 11 show the clamping spring 4 in a separate representation. This also makes it clear that the clamping spring 4 has a root area 96 on the clamping leg 43 , at which the clamping leg 43 branches into the clamping tongue 44 and the actuating leg 42 . As can be seen, the actuating leg 42 is formed with a relatively large recess which forms the cam opening 46 . Starting from the clamping leg 43, two relatively thin side webs 47 extend only to the left and right of the contact leg 40. The side webs 47 can be made very thin since they transmit a pure tensile force. The contact leg 40 also extends through the recess.
  • the actuating leg 42 can be made of the same material together with the clamping tongue 44 by the clamping tongue 44 being separated from the material of the actuating leg 42 by a stamping process, for example. Since the side webs 47 can be so narrow, this leaves a relatively wide central material section for forming the clamping tongue 44, so that a relatively wide clamping edge 45 can be provided. This is conducive to good electrical contact and secure clamping of an electrical conductor. In addition, a high elasticity of the actuating arm 42 is realized by such narrow side bars 47 . In this way, the actuating leg 42 is connected to the clamping leg 43 in a relatively flexible manner.
  • the side bars 47 can be designed like "thin little legs", they therefore act like a kind of flexible connecting element, ie like a thread or cable connection under tensile load.
  • the clamping spring 4 can be designed in one piece with all the features described, d. H. be made integrally from a flat sheet of metal, e.g. B. be stamped and bent from a metal sheet with a predetermined thickness.
  • the material width of the side bars 47 can vary over their longitudinal extent. For example, there can be a gradation or a transition from an area of the side webs 47 that is initially narrower, starting from the clamping leg 43 , to an area of the side webs 47 that is wider towards the transverse web 48 .
  • the wider area of the side bars 47 is particularly effective at higher spring loads.
  • the inner distance between the side bars 47 in the area of the driver opening 46 in which the contact leg 40 protrudes through the driver opening 46 can be larger than in the area of the driver opening 46 that serves to accommodate the spring driver 54 .
  • the clamping tongue 44 can, in particular, be trapezoidal in shape or can become narrower towards the free end. This has the advantage that if the clamping spring 4 is in an inclined position, the clamping spring 4 does not block on the inner side surfaces of the material passage 32 .
  • the actuating leg 42 has the transverse web 48 at the end.
  • a curved tab 93 protrudes from the crossbar 48 .
  • the tab 93 forms at the bottom, i. H. on the side facing the driver opening 46, the curved bearing area 49 for resting on the socket bearing 59 of the actuating lever 5.
  • the actuating arm 42 can be produced in the end area in such a way that the area having the crossbar 48 is bent from the side bars 47 in a first bending direction and the tab 93 is bent by the crossbar 48 in a different, opposite bending direction. In this way, while avoiding excessive degrees of deformation, a relatively large angle exceeding 90 degrees can be achieved between the tab 93 and the side webs 47 .
  • the actuating leg 42 has two side bars 47 spaced apart from one another, which are connected to one another at their free end via the transverse bar 48 .
  • the side bars 47 and the crossbar 48 enclose the driver opening 46, the for engaging the spring driver 54 is used.
  • the tab 93 which points into the driver opening 46 , adjoins the transverse web 48 and has a bend, so that this bend forms a curved bearing area 49 on its convex surface, which is designed for contact with the socket bearing 59 of the actuating lever 5 .
  • the free end of the actuating leg 42 is bent away from the spring bow 41 with the crosspiece 48 .
  • the curvature or rounding of the curved bearing area 49 is adapted to the shape of the socket bearing 59 in terms of shape.
  • the actuating leg 42 only branches off from the clamping leg 43 relatively far at the end of the clamping leg 43 , but at least closer to the clamping edge 45 than to the spring bow 41 .
  • the actuating arm 42 thus runs at a minimal distance from the conductor rail 3 in the assembled and non-actuated state (see also figure 1 ).
  • the actuating leg 42 accordingly runs predominantly essentially parallel to the surface of the first busbar section 30. In this way, a relatively large lever arm for actuating the clamping leg 43 is realized. As a result, the operating force of the operating lever 5 can be reduced.
  • the actuating leg 42 can extend along the first busbar section 30 beyond the curved region 35 .
  • the actuating leg 42 can protrude with its driver opening 46 beyond the first conductor rail section 30 so that the spring driver 54 can engage in the driver opening 46 through the conductor rail 3 without any obstacle.
  • the clamping spring 4 can be particularly elastic. This configuration also prevents the clamping spring from tilting significantly in the event of an oblique pull.
  • the actuating arm 42 can also be guided by guide means in the insulating material housing, e.g. B. an inner housing wall or edge of the housing, in the longitudinal direction of the actuating arm 42 can be performed.
  • an inner housing edge is formed, for example, by the end of the intermediate wall 26 that is free into the interior of the insulating housing 2 (cf figure 3 and 4 ).
  • an advantageous guidance of the curved bearing area 49 in the socket bearing 59 can be realized during a pivoting movement of the actuating lever 5 in that the curved bearing area 46 in the socket bearing 59 is guided in the direction of a pivoting axis of the actuating lever 5 .
  • a clamping spring 4 with a shortened buckling length will be realized.
  • Such a clamping spring 4 is better protected against undesired bending or buckling of the clamping leg 43 when a clamped electrical conductor is pulled from the outside. The risk of the clamping leg 43 buckling when mechanically pulling on a clamped electrical conductor is minimized.
  • the distance, i. H. the gap dimension between the actuating leg 42 and the conductor rail 3 can be less than 1 mm, for example, or less than 0.5 mm.
  • An exemplary advantageous value is 0.3 mm. In this way, the actuating leg 42 does not yet touch the conductor rail, so that wear due to friction is avoided.
  • the effective length of the actuating leg 42 with regard to the actuation is greater than the length of the clamping leg, measured from the branching point of the actuating leg 42 from the clamping leg 43 to the Apex of the spring arc 41.
  • the figure 12 shows the interaction between the clamping spring 4 and the operating lever 5 when the operating lever 5 is in the open position.
  • the spring driver 54 protrudes through the driver opening 46.
  • the advantageous interaction of the curved bearing area 49 with the socket bearing 59 can again be seen.
  • the spring driver 54 has a width that changes over its extension.
  • This can e.g. B. be realized in that the spring driver 54 is narrower toward its free end, z. B. by a one-sided or double-sided bevel.
  • a first area 61 and a second area 62 which adjoins the first area 61 can thus be formed on the spring driver 54 .
  • the first area 61 is narrower than the second area 62 in the direction of the width of the spring driver 54.
  • the spring driver 54 can then transition into a third area 63, which is wider than the second area 62. In this way, the spring driver 54 can easily enter the Driver opening 46 are introduced.
  • the second area 62 and/or third area 63 that follows when the actuating lever 5 is pivoted further can form a guide for the side bars 47 of the actuating arm 42.
  • the guide can in particular be designed as a guide on both sides for both side bars 47 .
  • This embodiment of a spring driver 54 is not only suitable for an actuating lever 5 with the pivotability described, but also for other types of actuating elements that are slidably mounted, ie are designed in the form of a sliding element.
  • the actuating leg 42 essentially does not change its position relative to the clamping leg 43 in the course of the actuating movement of the actuating lever 5 .
  • This has the advantage that the transition point between the actuating leg 42 and the clamping leg 43 is exposed to only a few changing bending loads during actuation. This is further supported by a comparatively small bending radius at the transition from the actuating leg 42 to the clamping leg 43.
  • a comparatively small bending radius at the transition from the actuating leg 42 to the clamping leg 43 For example, an average bending radius R3 of this bending area, which has a maximum of three times the thickness of the sheet metal, is favorable.
  • This enables an optimal introduction of the force of the actuating lever 5 via the actuating leg 42 into the clamping spring 4. This results in a direct transmission, a short stroke and consequently essentially no stretching in the actuating leg 42.
  • such a construction allows a simple production of the components used and the entire conductor terminal 1.
  • the clamping spring 4 can thus be arranged with its predominant parts and in particular with the actuating leg 42 on one and the same side of the conductor rail 3 , in particular on that side from which an electrical conductor is inserted into the conductor feedthrough opening 36 .
  • the Figures 13 and 14 show the busbar 3 in a separate representation.
  • the busbar 3 is additionally shown with a third busbar section 37 adjoining the second busbar section 31 .
  • the conductor rail 3 has further conductor feedthrough openings, at which further terminal points can be formed.
  • the first and the second busbar section 30, 31 have the elements already described.
  • the recess 33 for guiding the first guide section 57 and the bearing areas 34 for bearing the bearing projections 58 of the actuating lever 5 can be seen even up to the first busbar section 30.
  • the recess 33 is surrounded on all sides by the material of the busbar 3. He can as from the side of Support area 34 only partially the material of the conductor rail penetrating recess or be formed as a completely continuous recess (no bottom).
  • the busbar 3 is angled and/or bent by the curved area 35, i. H. such that an angle is formed between the first bus bar section 30 and the second bus bar section 31 .
  • the area of curvature 35 can form an interior angle between the first busbar section 30 and the second busbar section 31 in the range of 105 to 165 degrees or 120 degrees to 150 degrees.
  • the area of curvature 35 can be configured, for example, in such a way that the busbar 3, starting from the second busbar section 31, is initially concavely curved with a first radius R1 and then transitions into a convexly curved section with a radius of curvature R2, in each case in a viewing direction onto the support area 34. It is advantageous here if the radius R1 is larger than the radius R2, e.g. B. at least twice as large.
  • the operating lever 5 can be at least partially on the curved area of the conductor rail 3, d. H. in the area of curvature 35, and run along it during a pivoting movement.
  • the busbar 3 described can be designed as an alternative to the one-piece design explained so far as a multi-piece design, z. B. with two or more separate busbar sections.
  • the third busbar section 37 can be designed as a separate busbar section from the first and second busbar sections 30, 31. This is e.g. B. advantageous for an application in a disconnect terminal.
  • the figure 15 shows a further embodiment of a conductor terminal 1, in this case in the form of a terminal block, with four conductor terminals 1 lined up next to one another being shown as an example.
  • the conductor connection terminals 1 have the structure described above in the area visible on the left, ie the arrangement with the busbar 3, the clamping spring 4 and the actuating lever 5 in the insulating material housing 2.
  • the busbar 3 is in this case corresponding to the embodiments of FIG Figures 13 and 14 formed, ie it has the third busbar section 37 .
  • the third conductor rail section extends into an area of the respective conductor connection terminal 1 shown on the right, in which at least one second conductor connection 8 with a second clamping point 9 is arranged.
  • each conductor connection terminal 1 has two second conductor connections 8 and, accordingly, two second clamping points 9 on.
  • the respective second conductor connection 8 is accessible via further conductor entry openings formed in the insulating material housing 2 .
  • An electrical conductor can be inserted into the second conductor terminal 8 in a conductor insertion direction L2.
  • the conductor insertion direction L1 can be different from the conductor insertion direction L2.
  • the conductor connection terminals 1 have mounting rail fastening elements 82 with which the respective conductor connection terminal 1 can be attached to a mounting rail, e.g. by snapping onto the mounting rail.
  • the conductor insertion direction L1 can be arranged, for example, in the range of 30 degrees to 60 degrees to the attachment plane, and the conductor insertion direction L2 in an angular range of 75 to 105 degrees.
  • the carrier rail fastening elements 82 are arranged on a carrier rail fastening side of the insulating housing 2 .
  • the actuating levers 5 can be seen on the housing side of the insulating material housing which is remote from the support rail attachment side and which is also referred to as the housing top side 83 .
  • the outer surface 65 of the manual actuating section of the actuating lever 5 in the closed position has the same course as the adjacent surface contour of the insulating housing, i.e. the adjacent parts of the housing top 83.
  • the conductor connection terminal 1 can be actuated in the area of the second conductor connection 8 by a further actuating element 81 which is either part of the conductor connection terminal 1, e.g. B. in the form of a pusher, can be arranged in an actuating opening 80 of the insulating material housing 2 or can be realized by a separate actuating tool that can be guided through the actuating opening 80 to the second conductor connection 8, but which is not part of the conductor connection terminal 1.
  • a further actuating element 81 which is either part of the conductor connection terminal 1, e.g. B. in the form of a pusher, can be arranged in an actuating opening 80 of the insulating material housing 2 or can be realized by a separate actuating tool that can be guided through the actuating opening 80 to the second conductor connection 8, but which is not part of the conductor connection terminal 1.
  • the clamping spring 4 has an additional arcuate area in the area of the clamping leg 43, which is referred to as the clamping leg arc 90.
  • the clamping leg 43 is bent toward the inner region of the space enclosed by the clamping spring 4 .
  • the overload protection element 29 of the insulating material housing 2 is adapted to the clamping leg bend 90 .
  • a shortened buckling length of the clamping leg 43 is achieved by means of the clamping leg bend 90 when the area of the clamping leg 43 between the clamping leg bend 90 and the spring bend 41 bears against the overload protection element 29 .
  • the Clamping leg arc 90 on a movement of the actuating lever from the closed position to the open position on the overload protection element 29.
  • clamping spring 4 may have a different design of the clamping tongue 44, for. B. with a width that initially decreases toward the clamping edge 45 and increases again in the end section, so that a relatively wide clamping edge 45 can be provided with little material.
  • the clamping spring 4 can also have a clamping tongue 44, as in FIGS figures 10 and 11 is shown.
  • the figure 19 shows the conductor terminal 1, which is already based on the Figures 1 to 4 was explained in a figure 4 Similar representation, but with different section planes.
  • conductor terminal 1 is the operating lever 5 again in the open position.
  • the actuating lever 5 is supported on the first support point 84 and the second support point 85 .
  • the first bearing point 84 is formed between the first fixing element 52 of the actuating lever 5 and the second latching edge 91
  • the second bearing point 85 is formed between the fourth fixing element 64 of the actuating lever 5 and the curved region 35 of the conductor rail 3 .
  • a straight connecting line 86 is drawn in, which runs through the first support point 84 and the second support point 85 .
  • a straight line 87 also shows the effective direction of the tensile force acting on the actuating lever 5 from the clamping spring 4 and transmitted via the actuating leg 42 .
  • the direction of the line of action 87 corresponds to the direction of the actuating arm 42 or the direction of the side bars 47 of the actuating arm 42. It can be seen that the actuating arm 42 or the line of action 87 to the straight connecting line 86 forms an angle ⁇ .
  • the angle ⁇ is thus defined in the mathematically positive direction from the line of action 87 or the direction of the actuating leg 42 to the straight connecting line 86 .
  • the angle ⁇ is advantageously less than 90 degrees. This results in an advantageous funnel shape of the line of action 87 of the tensile force or the direction of the actuating leg 42 compared to the bearing plane formed by the first bearing point 84 and the second bearing point 85 (represented by the connecting line 86).
  • the actuating lever 5 is supported at a main contact point K1, K2, K3, K4, K5 in the conductor connection terminal 1.
  • About the Main contact point K1, K2, K3, K4, K5 is transmitted to at least one other element of the conductor terminal, the greatest amount of force acting on the actuating lever force of the clamping spring.
  • the main contact point K1, K2, K3, K4, K5 can repeatedly experience a discontinuous (sudden) change of location when the actuating lever 5 is pivoted over its pivoting range.
  • a first location of the main contact point K1 can be formed between the busbar 3 and the region of the actuating lever 5 supported on the busbar 3, e.g. at the second bearing point 85.
  • the first location of the main contact point K1 can alternatively also be formed at the first bearing point 84 be.
  • the pivoting process of the actuating lever 5 begins with a first instantaneous center M1 of the pivoting movement at the first support point 84, i.e. between the second latching edge 91 and the first fixing element 52 is formed.
  • a second location of the main contact point K2 can now be formed at the first bearing point 84 .
  • the detent at the second support point 85 is released, i.e. the actuating lever 5 is raised slightly in this area, so that the fourth fixing element 64 and its adjacent material areas are not stressed by friction on the busbar 3 and are accordingly not worn.
  • This movement phase of the actuating lever 5 allows the second fixing element 53 to be lifted over the first latching edge 21 , so to speak, whereby a certain distance can arise between the second fixing element 53 and the first latching edge 21 .
  • the figure 21 shows the further course of the movement of the actuating lever 5 when moving into the closed position. If the actuating lever 5 is moved further in the direction of the closed position, the lateral bearing element 56 of the actuating lever 5 comes into contact with an edge of the insulating housing 2 . At this time, the instantaneous center of pivotal movement of the operating lever 5 changes to the point M2 as shown in FIG figure 21 shown, ie to the contact point between the lateral bearing element 56 and the insulating housing 2. At this point, a third location of the main contact point K3 of the actuating lever 5 can now also be formed for a further movement phase of the actuating lever 5.
  • the contact between the lateral bearing element 56 and the insulating material housing 2 is canceled again.
  • the actuating lever 5 can now slide along a guideway of the insulating material housing with the second fixing element 53 or the underside of the first guide section 57, so that a fourth location of the main contact point of the actuating lever 5 is now formed at this point.
  • the bearing projection 58 of the actuating lever 5 comes into contact with the bearing area 34 of the busbar 3, so that a fifth location of the main contact point of the actuating lever can be formed between the bearing area 58 of the actuating lever 5 and the bearing area 34 of the busbar.
  • the figure 22 now shows the position of the actuating lever 5 when moving from the closed position to the open position shortly before reaching the open position.
  • the underside of the first guide section 57 or the second fixing element 53 slide along a guideway of the insulating material housing 2 or lie on this guideway shortly before reaching the open position, so that the fourth fixing element 64 and the bearing projection 58 of the actuating lever 5 opposite the busbar 3 are lifted or at least slightly spaced.
  • the second fixing element 53 moves behind the first latching edge 21 of the insulating material housing 2, so that the actuating lever 5 is pulled under the action of the spring force in the direction of the conductor rail 3 and the fourth fixing element 64 is pulled towards the curved area 35 rests (second support point 85) and thus its end position in the open position according to the figure 19 reached.

Claims (16)

  1. Borne de connexion de conducteur (1), comportant un boîtier en matériau isolant (2), une barre conductrice (3), un ressort de serrage (4) et un levier d'actionnement (5) qui est logé dans le boîtier en matériau isolant (2) de manière pivotante par l'intermédiaire d'une zone de pivotement et qui peut pivoter entre une position ouverte et une position fermée, dans laquelle
    le ressort de serrage (4) présente une branche d'actionnement (42) qui est déviée par un entraîneur de ressort (54) du levier d'actionnement (5) au moins dans la position ouverte,
    le levier d'actionnement (5) est supporté en position ouverte sur un premier et un deuxième emplacement de support (84, 85) espacés l'un de l'autre, et le levier d'actionnement (5) est tiré contre le premier et le deuxième emplacement de support (84, 85) par une force de traction du ressort de serrage (4) agissant de la branche d'actionnement (42) sur l'entraîneur de ressort (54),
    le deuxième emplacement de support (85) est disposé sur la barre conductrice (3),
    une droite de liaison (86) passant par le premier et le deuxième emplacement de support (84, 85) ou une droite parallèle à la droite de liaison (86) présente un point d'intersection avec la branche d'actionnement (42),
    un angle (α) entre la branche d'actionnement (42) et la droite de liaison (86) ou la droite parallèle à celle-ci est inférieur à 90 degrés,
    caractérisée en ce que
    l'angle (α) entre la branche d'actionnement (42) et la droite de liaison (86) ou la droite parallèle à celle-ci est supérieur à 20°.
  2. Borne de connexion de conducteur (1) selon la revendication 1, caractérisée en ce que la ligne d'action (87) de la force de traction de la branche d'actionnement (42) passe entre le premier et le deuxième emplacement de support (84, 85).
  3. Borne de connexion de conducteur (1) selon la revendication 2, caractérisée en ce que la ligne d'action (87) de la force de traction de la branche d'actionnement (42) passe dans une zone centrale entre le premier et le deuxième emplacement de support (84, 85), en particulier dans une zone de 30% à 70% de la distance entre le premier et le deuxième emplacement de support (84, 85).
  4. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que dans la position ouverte, la branche d'actionnement (42) passe entre le premier et le deuxième emplacement de support (84, 85).
  5. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que le ressort de serrage (4) comprend une branche d'appui (40), un coude de ressort (41) se raccordant à la branche d'appui (40), une branche de serrage (43) se raccordant au coude de ressort (41) et pourvue d'une languette de serrage (44).
  6. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que le ressort de serrage (4) comprend une branche de serrage (43), la branche d'actionnement (42) faisant saillie de la branche de serrage (43).
  7. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que la branche d'actionnement (42) comprend deux nervures latérales (47) espacées l'une de l'autre et une nervure transversale (48) reliant les nervures latérales (47) entre elles à leur extrémité libre, les nervures latérales (47) et la nervure transversale (48) entourant une ouverture d'entraînement (46) pour l'engagement d'un entraîneur de ressort (54) d'un levier d'actionnement (5) de la borne de connexion de conducteur (1).
  8. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que le levier d'actionnement (5) comprend un premier élément de fixation (52) par lequel le levier d'actionnement (5) est supporté sur le premier emplacement de support (84) dans la position ouverte, le premier élément de fixation (52) formant un renfoncement dans la périphérie extérieure du levier d'actionnement (5).
  9. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce qu'une surface de support (91) est formée sur le boîtier en matériau isolant (2), laquelle forme le premier emplacement de support (84) en position ouverte, la surface de support (91) faisant partie d'un renflement du boîtier en matériau isolant (2).
  10. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que le deuxième emplacement de support (85) est réalisé sous la forme d'un renflement de la barre conductrice (3) orienté vers le levier d'actionnement (5).
  11. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que dans la position ouverte, le point d'application de la force de traction vers le levier d'actionnement (5) est disposé de telle sorte qu'un couple de rotation agit sur le levier d'actionnement (5), auquel s'oppose le support du levier d'actionnement (5) sur le premier et le deuxième emplacement de support (84, 85).
  12. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que l'angle (α) entre la branche d'actionnement (42) et la droite de liaison (86) ou la droite parallèle à celle-ci est supérieur à 30° ou supérieur à 45°.
  13. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce qu'au moins le deuxième emplacement de support (85) est formé par deux surfaces de support espacées l'une de l'autre perpendiculairement au plan de pivotement du levier d'actionnement (5), sur lesquelles le levier d'actionnement (5) est supporté.
  14. Borne de connexion de conducteur (1) selon la revendication précédente,
    caractérisée en ce que le levier d'actionnement (5) est supporté à la manière d'un support à trois points par les deux surfaces de support du deuxième emplacement de support (85) ainsi que par le premier emplacement de support (84).
  15. Borne de connexion de conducteur (1) selon l'une des revendications 13 à 14,
    caractérisée en ce que les surfaces de support du deuxième emplacement de support (85) sont disposées dans des plans d'espace respectifs parallèles au plan de pivotement du levier d'actionnement (5), et le premier emplacement de support (84) est disposé dans un troisième plan d'espace parallèle aux premier et deuxième plans d'espace, qui est disposé entre les premier et deuxième plans d'espace.
  16. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce qu'un angle de l'ordre de 60° à 120° est formé entre le plan d'une surface du boîtier en matériau isolant (2), sur laquelle le levier d'actionnement (5) dépasse du boîtier en matériau isolant (2) dans la position ouverte, et un plan d'espace perpendiculaire au plan de pivotement du levier d'actionnement (5), qui passe au milieu d'une portion d'actionnement manuel (50) du levier d'actionnement (5).
EP19714619.4A 2018-03-28 2019-03-28 Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur et bloc de jonction Active EP3776743B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202018101732.2U DE202018101732U1 (de) 2018-03-28 2018-03-28 Leiteranschlussklemme, Klemmfeder einer Leiteranschlussklemme sowie Reihenklemme
DE202018102219 2018-04-20
PCT/EP2019/057866 WO2019185802A1 (fr) 2018-03-28 2019-03-28 Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur et bloc de jonction

Publications (2)

Publication Number Publication Date
EP3776743A1 EP3776743A1 (fr) 2021-02-17
EP3776743B1 true EP3776743B1 (fr) 2023-06-07

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EP19714619.4A Active EP3776743B1 (fr) 2018-03-28 2019-03-28 Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur et bloc de jonction

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Country Link
US (1) US11322861B2 (fr)
EP (1) EP3776743B1 (fr)
CN (1) CN111919342B (fr)
DE (1) DE102019108023A1 (fr)
PL (1) PL3776743T3 (fr)
WO (1) WO2019185802A1 (fr)

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Publication number Priority date Publication date Assignee Title
TWI717908B (zh) * 2019-11-20 2021-02-01 進聯工業股份有限公司 用於軌道型端子裝置之導電組件結構
LU504441B1 (en) * 2023-04-23 2023-09-21 Suzhou Ruitemeng Information Tech Co Ltd Plastic Pipe Welding Machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10237701B4 (de) * 2002-08-16 2010-09-16 Wago Verwaltungsgesellschaft Mbh Verbindungsklemme für ein-, mehrdrähtige, insbesondere feindrähtige, elektrische Leiter
DE102010024809B4 (de) * 2010-06-23 2013-07-18 Wago Verwaltungsgesellschaft Mbh Anschlussklemme
DE102011110640B4 (de) * 2011-08-18 2014-07-31 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE102012005465B3 (de) * 2012-03-20 2013-05-08 Wieland Electric Gmbh Federklemme
DE102014102517B4 (de) * 2014-02-26 2021-06-10 Wago Verwaltungsgesellschaft Mbh Verbindungsklemme und Federkraftklemmkontakt hierzu
DE102014114026B4 (de) 2014-09-26 2023-03-30 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme und Verfahren zu deren Montage
DE102015119247A1 (de) 2015-11-09 2017-05-11 Wago Verwaltungsgesellschaft Mbh Verbindungsklemme
DE202016103363U1 (de) 2016-06-24 2017-09-28 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
LU93148B1 (de) * 2016-07-13 2018-01-23 Phoenix Contact Gmbh & Co Kg Intellectual Property Licenses & Standards Anschlussklemme
DE102016118331A1 (de) * 2016-08-26 2018-03-01 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme zum Anschluss elektrischer Leiter

Also Published As

Publication number Publication date
US20210013639A1 (en) 2021-01-14
US11322861B2 (en) 2022-05-03
CN111919342A (zh) 2020-11-10
PL3776743T3 (pl) 2023-12-11
DE102019108023A1 (de) 2019-10-02
WO2019185802A1 (fr) 2019-10-03
EP3776743A1 (fr) 2021-02-17
CN111919342B (zh) 2022-08-30

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