EP3776742B1 - Borne de connexion de conducteur - Google Patents

Borne de connexion de conducteur Download PDF

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Publication number
EP3776742B1
EP3776742B1 EP19714617.8A EP19714617A EP3776742B1 EP 3776742 B1 EP3776742 B1 EP 3776742B1 EP 19714617 A EP19714617 A EP 19714617A EP 3776742 B1 EP3776742 B1 EP 3776742B1
Authority
EP
European Patent Office
Prior art keywords
actuating lever
actuating
leg
clamping
busbar
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
EP19714617.8A
Other languages
German (de)
English (en)
Other versions
EP3776742A1 (fr
Inventor
Frank Hartmann
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
Application filed by Wago Verwaltungs GmbH filed Critical Wago Verwaltungs GmbH
Priority to EP22170265.7A priority Critical patent/EP4068519A1/fr
Publication of EP3776742A1 publication Critical patent/EP3776742A1/fr
Application granted granted Critical
Publication of EP3776742B1 publication Critical patent/EP3776742B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—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
    • H01R4/4846—Busbar details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring
    • 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
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade 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
    • 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
    • H01R4/483—Pivoting arrangements, e.g. lever pushing 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
    • 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
    • H01R4/4835—Mechanically bistable arrangements, e.g. locked by the housing when the spring is biased

Definitions

  • the invention relates to a conductor connection terminal with an insulating material housing, a clamping spring and an actuating element which is pivotally accommodated in the insulating material housing 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 arch adjoining the contact leg.
  • the clamping leg can be connected to the spring arch.
  • the clamping spring can have an actuating leg projecting from the clamping leg.
  • the actuating element can cooperate with the actuating leg to move the clamping tongue.
  • the actuating element can be, for example, 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 further relates to a conductor connection terminal with an insulating material housing, a clamping spring and an actuating lever, which is pivotally accommodated in the insulating material housing over a pivoting range and can be pivoted between an open position and a closed position, the clamping spring having an actuating leg which has a 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 mentioned embodiments of the conductor connection terminal can also be advantageously combined with one another.
  • the invention 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, an actuating leg protrudes from the clamping leg, the actuating leg having a driver opening for engaging a spring driver of an actuating lever of the conductor connection terminal.
  • the actuating leg can have two side webs spaced apart from one another.
  • the actuating leg can have a crossbar.
  • the crossbar can connect the side bars with each other at their free end.
  • the side bars and the crossbar 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.
  • the invention also relates to a conductor connection terminal with an insulating material housing, a busbar, a clamping spring and an actuating lever, which is pivotally accommodated in the insulating material housing 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 via a spring driver of the actuating lever at least in the open position, the actuating lever being supported on the busbar with a contact force at least over a partial area of the pivoting range and the actuating lever in the open position via at least one fixing element arranged on the actuating lever in cooperation with can be locked to a counter-fixing element formed on the busbar.
  • the fixing element mentioned above can be, for example, the fourth fixing element explained below.
  • As a counter-fixing element Part of the busbar can serve, in particular the curvature area of the busbar explained below.
  • a conductor connection terminal with lever operation according to the preamble of claim 1 is already from the EP 0 837 526 A1 known.
  • the invention relates to the field of conductor connection technology using clamping springs.
  • the invention is based on the object of improving such conductor connection terminals, their clamping springs and the terminal blocks formed with them.
  • the actuating lever is supported on the busbar at least over a partial area of the pivoting area. Accordingly, the actuating lever is supported on the busbar, which enables a robust support of the actuating lever and the possibility of fixation in certain positions, e.g. the open position or the closed position.
  • the busbar can be fixed in the insulating housing, i.e. essentially immovable in all three spatial directions in the insulating housing, except for tolerances.
  • the actuating lever has at least one support projection for supporting the actuating lever on the busbar.
  • a defined support surface of the actuating lever is provided, via which the actuating lever can be supported on the busbar.
  • the support 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 actuating lever is additionally guided by the busbar during a pivoting process and is held in a desired pivoting plane against laterally occurring forces.
  • the recess in the busbar can, for example, be slot-shaped, i.e. in the form of a longitudinal slot in the busbar.
  • the recess in the busbar is slot-shaped and, in particular, is surrounded on the circumference by the material of the busbar.
  • the recess can form a robust guide for the first guide section of the actuating lever.
  • the conductor rail is not excessively weakened by the recess.
  • a conductor connection terminal with a clamping spring and a busbar that has a slot-shaped recess is also to be viewed as an independent invention.
  • Such a conductor connection terminal can also be advantageously combined with the other embodiments of the conductor connection terminal mentioned.
  • the slot-shaped recess can be used for different purposes, e.g. for fixing the busbar in the insulated housing. Another possible application for storing and guiding the operating lever, as explained previously.
  • the actuating lever is guided during a pivoting movement at least over a partial area of the pivoting range through the first guide section in the recess in the busbar.
  • the support projection is arranged adjacent to the first guide section on the actuating lever.
  • the support projection and the first guide section can be spaced apart, for example, by a groove.
  • at least no element with a guiding function is present between the support projection and the first guide section.
  • the support projection and the first guide section can have guide surfaces that are at an angle, for example 90°, to one another.
  • the support 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 combined in a mechanically favorable manner with the support of the actuating lever on the busbar by means of the support projection.
  • the contact leg is supported on the busbar.
  • the actuating lever is mounted floating 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, for example a displacement degree of freedom, in the course of the pivoting movement. In this way, the function of the operating lever can be further improved, for example with regard to fixing 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 pole. The instantaneous pole can therefore be movable 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, wherein the first busbar section has a curvature region of the busbar in which the busbar is curved is formed, is connected to the second busbar section.
  • the curvature region and/or the second busbar section can be used for further functionalities of the conductor connection terminal, for example 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 in the second busbar section at least over a partial region of the pivoting region.
  • the contact leg can be mounted in or on the first busbar section on the busbar.
  • the actuating lever in the area supported on the busbar has a contour adapted to the curvature of the curvature area, which rests on the top of the curvature area in the open position of the actuating lever and a fourth fixing element for fixing the Actuating lever forms on the busbar.
  • the actuating lever in the open position, i.e. in the open pivoting state of the actuating lever, can be fixed by positive engagement of the curvature area in the adapted contour.
  • the adapted contour thus forms the fourth fixing element, e.g. a locking element, for fixing the operating lever in the open position.
  • the curvature region forms an internal 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. 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 curvature region is designed such that the busbar is initially curved concavely with a first radius (R1) starting from the second busbar section and then merges into a convexly curved 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 type of "hump" can be created in the curvature area, which is particularly suitable for positively locking the operating lever in the open position.
  • the curvature region can in particular be designed such that the busbar merges directly from the first radius into the second radius without a non-curved region being arranged in between. Due to the arrangement explained with the first radius and the second radius curved in the opposite direction, a kind of hump is formed in the busbar, thus a section that is raised compared to the adjacent 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 curvature region or extends from the second busbar section over the curvature region into the first busbar section extends.
  • the area of the busbar that serves to guide the actuating lever can be spatially spaced from an area of the busbar that forms a spring-loaded clamping connection with the clamping spring.
  • the actuating leg has a driving area and the actuating lever has a spring driver which interacts with the driving area to move the clamping tongue.
  • the clamping tongue can be deflected by the operating lever.
  • the driving area on the actuating leg can, for example, as explained below, be designed as a driving opening or as a side cutout in the actuating leg.
  • 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 leg.
  • the spring driver also acts as a guide element that guides the actuating lever in the area of the closed position within the recess of the busbar.
  • the actuating lever is supported on the busbar in that at least one support projection of the actuating lever is supported on a support region 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 actuating lever in combination with the recess, can function functionally on both sides of the busbar, i.e. both on the top side and on the underside facing away from the top side.
  • the actuating lever or its element protruding through the recess can cooperate with another element of the conductor connection terminal, for example 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 curvature region of the busbar, at least in the closed position. This is also beneficial for providing a small conductor connection terminal.
  • the area of the clamping spring that is to be actuated by the spring driver can therefore be designed with only a slight projection over the busbar.
  • the spring driver is preferably formed on the first guide section of the actuating lever. Due to the fact that the first guide section with the spring driver is immersed in 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 also be reduced.
  • the busbar has a conductor feedthrough opening into which the contact leg and the clamping tongue are immersed.
  • the conductor connection terminal can be made particularly compact, especially with regard to the electrical contact use.
  • the conductor feedthrough opening has wall sections projecting on all sides from the busbar level, which form a material passage. This enables good contacting of an electrical conductor and secure mechanical fastening of the electrical conductor.
  • the material passage can be produced in a way that is more favorable in terms of production technology, for example in one piece from the material of the busbar.
  • the conductor connection terminal has a second conductor connection for connecting a second electrical conductor, wherein the second conductor connection is electrically conductively connected to the first conductor connection via the second busbar section or can be connected via a connecting element.
  • the conductor connection terminal can be designed, for example, as a modular terminal.
  • the first busbar 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 actuation section runs essentially parallel to a second busbar section in the longitudinal direction of the actuation lever, which connects the first busbar section to the third busbar section, or substantially parallel to the third busbar section runs.
  • the outer surface of the manual operation section is the surface facing away from the insulating material housing in the closed position when the operation lever is in the closed position. This allows the overall height of the terminal block to be minimized.
  • the actuating leg in the closed position, in particular when no electrical conductor is clamped to the first clamping point, the actuating leg initially runs along the first busbar section starting from the clamping leg and protrudes beyond the curvature area. In this way, the actuating leg can be arranged to save space and still be easily gripped by the spring driver when the actuating lever is moved into the open position.
  • the actuating leg protrudes from the clamping leg, the actuating leg having two spaced side webs and a crossbar connecting the side webs at their free end, the side webs and the crossbar having a driver opening for the engagement of a spring driver Enclose the operating lever of the conductor connection terminal. This allows a favorable power transmission from the actuating lever to the clamping leg while at the same time space-saving design of the conductor connection terminal.
  • the crossbar 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 operating lever against being pulled out in the open position.
  • the area of the insulating material housing which forms a safeguard against the actuating lever being pulled out of the insulating material housing, forms a stop for the crossbar of the actuating leg.
  • the actuating lever moves from a closed position in which a clamping edge, in particular a clamping edge of the clamping tongue, with the busbar forming a clamping point for clamping an electrical conductor, can be pivoted into an open position, in which the clamping edge is lifted from the busbar in order to open the clamping point.
  • the closed position of the operating lever corresponds to a closed position of the clamping point
  • the open position of the operating lever corresponds to an open clamping point.
  • the insulating material housing has an opening which is covered by the operating lever in the closed position of the operating lever, the opening leading to the clamping spring or other electrically conductive components of the conductor connection terminal.
  • the opening can in particular be designed as a lever feedthrough slot in a canopy of the insulating material housing.
  • the opening is covered in the closed position, 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 slightly offset inwards compared to the outer contour of the insulating material housing.
  • the insulating material housing can have a lever opening, which allows the actuating lever to be installed when the insulating material housing is fully assembled.
  • the opening mentioned above can form part of the lever opening.
  • the actuating lever can be mounted from above, so to speak, through the lever opening when the insulating material housing is fully assembled, i.e. without any further, for example, side openings.
  • the lever opening can be completely surrounded on the circumference by the material of the insulating housing, i.e. by corresponding walls or other sections of the insulating housing. If the actuating lever is mounted in its final position in the conductor connection terminal, at least the manual actuating section protrudes at least partially from the insulating material housing, i.e. the actuating lever then extends through the lever opening.
  • the lever opening can 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 longitudinal extent.
  • the taper can be realized by the canopy mentioned, so that the lever feedthrough slot is designed 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, with the direction perpendicular to the pivoting plane of the actuating lever being the transverse direction of the conductor connection terminal.
  • 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 actuating lever can have lateral recesses through which the area of the actuating lever, which can dip into the area of the lever opening formed with the taper, is designed to be narrower than adjacent areas, for example narrower than the manual actuating section.
  • the canopy In the closed position, the canopy can be at least partially accommodated in these side recesses.
  • a canopy level 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 canopy level.
  • the canopy can also serve as a stop and/or support element for the operating 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 connection terminal, in contrast to an actuation tool that is not part of the conductor connection terminal and must be purchased separately if a terminal point of the conductor connection terminal is to be opened. Because the actuating element or the actuating lever is designed as an integral part of the conductor connection terminal, the procurement of a separate tool is not necessary. The actuating element or the actuating lever is then permanently available for actuating the clamping spring.
  • the spring driver is immersed in 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 safe from being touched even in the open position. No additional component is required for this; the actuating lever can also fulfill this function with its spring driver.
  • the actuating lever has a second guide section which projects towards the lever passage slot and through which the actuating lever is guided in the area of the closed position.
  • additional guidance of the actuating lever in the closed area can be realized, 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 on the second guide section has at least one laterally projecting third fixing element, through which the actuating lever can be fixed in the closed position in the area of the canopy. This allows the operating lever to be fixed easily and reliably in the closed position.
  • the actuating lever has at least one second fixing element, by means of which the actuating lever is fixed in the open position.
  • the operating 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 curvature region of the busbar.
  • the second fixing element is immersed in 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 can be implemented for the actuating lever, so that any lever kickback that occurs is dampened. In particular, this also prevents the actuating lever from coming out of the insulating material housing or being thrown out 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 in every operating state of the actuating lever, even when pivoting, only a little additional external space is required. In the open position, the actuating lever can be located in a substantial area of its longitudinal extent, at least at least 30% or at least 40%, within the area surrounded by the outer contour of the insulating material housing.
  • the previously mentioned actuating lever can also be designed differently than a lever, for example as an actuating slide or as another actuating element. Accordingly, the invention also relates to a conductor connection terminal of the type mentioned above, in which, instead of the actuating lever, there is some kind of actuating element for actuating the clamping leg.
  • the actuating leg in a conductor connection terminal with an actuating element of any design, which cooperates with an actuating leg projecting from the clamping leg to move the clamping tongue, the actuating leg has two side webs spaced apart from one another and a crossbar connecting the side webs to one another at their free end has, wherein the side webs and the cross web enclose a driver opening for engaging a spring driver of the actuating element of the conductor connection terminal.
  • the spring driver has a width that changes over its extension, 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 region is formed on the spring driver.
  • the first spring driver area can be narrower than the second spring driver area.
  • the second spring driver area can be narrower than the third spring driver area.
  • the spring driver can additionally or alternatively become narrower towards its free end in a dimension other than its width, for example 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 in such a way that its width becomes narrower toward its free end can be designed in such a way that either a continuous reduction in width and/or a step-like reduction in width occurs. Accordingly, with regard to the width dimension, at least one step and/or edge can be present, whereby the step does not necessarily have to run at right angles, but can run at any other angle.
  • the design of the spring driver in such a way that its height becomes narrower towards its free end can be designed in such a way that either a continuous reduction in height and/or a step-like reduction in height takes place. Accordingly, with regard to the height dimension, at least one step and/or edge can be present, 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, for example with a radius. Accordingly, there are no pointed areas and/or edges at the free end of the spring driver, but rather the mentioned rounding.
  • the spring driver can be designed to be relatively long and slim in the present invention compared to solutions in the prior art.
  • the length of the spring driver can, for example, be at least 20% or at least 25% or at least 30% of the length of the operating lever in the storage area.
  • the storage area is considered to be the area of the actuating lever, which extends in the longitudinal direction of the actuating lever from the spring driver to the rear end, which is facing away from the spring driver.
  • 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 region forms a guide for the side webs of the actuating leg when the actuating element is moved into the open position. Accordingly, the side webs can each essentially rest against the third spring driver area. This prevents tilting between the actuating leg and the spring driver.
  • the actuating lever is supported in the open position on a first and a second support point spaced therefrom and the actuating lever is supported against the first and second support points by a tensile force of the clamping spring acting from the actuating leg on the spring driver is drawn.
  • This has the advantage that the actuating lever is additionally held and fixed in the open position by the tensile force of the clamping spring, which has the advantage over a rigid fixation, for example by a locking element, that even with slight 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, e.g. strong vibration loads.
  • the first and second support points can be arranged on one and the same element of the conductor connection terminal or on different elements of the conductor connection terminal.
  • One support point can be formed, for example, on the insulating material housing, the other support point on the busbar.
  • the line of action of the tensile force of the actuating leg runs between the first and the second support point. In this way, a robust fixation of the operating lever in the open position can be easily achieved. It is particularly advantageous if the line of action of the tensile force of the actuating leg runs in a central area between the first and second support points, in particular in a range of 30% to 70% of the distance between the first and second support points.
  • the actuating leg extends between the first and second support points in the open position.
  • the conductor connection terminal and in particular the electrical contact insert can be designed to be particularly compact.
  • the actuating lever has a second fixing element, through which the actuating lever is supported in the open position on the first support point, the second fixing element having a Indentation forms in the outer circumference of the operating lever.
  • Such an indentation is understood to mean a concave shape of a surface.
  • a bulge is a convex shape of a surface.
  • a support surface is formed on the insulating material housing, which forms the first support point in the open position, the support surface being part of a bulge in the insulating material housing.
  • the second support point is arranged on the busbar, in particular in the form of a bulge in the busbar pointing towards the actuating lever.
  • the force introduction point of the tensile force into the actuating lever is arranged in the open position in such a way that a torque acts on the actuating lever, which is counteracted by the support of the actuating lever on the first and second support points.
  • the actuating lever is therefore permanently loaded with a torque when it is in the open position, but is held by the support at the first and second support points. Accordingly, the operating lever does not have to be manually held in the open position.
  • a connecting line running through the first and second support points has an intersection with the actuating leg, with an angle from the actuating leg to the connecting line being less than 90 degrees.
  • a straight line parallel to the connecting line can also have an intersection with the actuating leg. In this case, an angle from the actuating leg to the straight line parallel to the connecting line is less than 90 degrees.
  • the angle from 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 operating lever is supported particularly securely in the open position. The operating lever remains securely in the open position even when vibrations occur.
  • an angle in the range of 60° to 120° is formed between the plane of a housing surface of the insulating material housing, on which the actuating lever projects 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 60° with regard to the lower value.
  • the angle range can end at 110°, 105° or 100° instead of 120° in terms of its upper value.
  • At least the second support point is formed by two support surfaces which are spaced apart perpendicular to the pivot plane of the actuating lever and on which the actuating lever is supported. This enables a multi-point support of the actuating lever at spatially distributed locations, in particular the three-point support explained below.
  • the actuating lever is supported by the two support surfaces of the second support point and by the first support 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 busbar.
  • the other two support points (first and third support points), which surround the middle support point, can be supported on the housing of the conductor connection 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, these can be arranged off-center in the transverse direction of the operating lever and accordingly on both sides of a center plane of the operating lever.
  • the middle support points can be realized by the arrangement of the two off-center fourth fixing elements 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 support points can be formed by the fourth fixing element.
  • a further (fourth) support point can be formed if both the first fixing element and the second fixing element form such a support point.
  • the support surfaces of the second support point are arranged in respective spatial planes arranged parallel to the pivot plane of the actuating lever and the first support point is arranged in a third spatial plane arranged parallel to the first and second spatial planes, which is between the first and the second spatial level is arranged.
  • the actuating lever is supported in the open position at least on a first support point, the insulating material 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 into 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 beneficial for a compact design of the conductor connection terminal.
  • the intermediate wall is supported and opposed to the support force applied to the intermediate wall by the actuating lever at the first support point on the clamping spring. Accordingly, the intermediate wall is, so to speak, clamped between two forces applied by the clamping spring, namely the support force transmitted by the actuating lever and a counterforce of the clamping spring.
  • a self-supporting system can advantageously be realized.
  • a plastic component is supported against a metal component, which induces or initiates the force, which is advantageous when exposed to moisture, which can lead to a reduction in the stability of the plastic material.
  • the intermediate wall is supported and opposed to the support force applied to the intermediate wall by the actuating lever at the first support point on the contact leg and/or on a spring arch which connects the contact leg and a clamping leg of the clamping spring to one another
  • the support force of the actuating lever is caused by a tensile force transmitted from the actuating leg of the clamping spring to the actuating lever.
  • a tensile force transmitted from the actuating leg of the clamping spring to the actuating lever By transmitting a pure tensile force, the elements involved in the force transmission from the clamping spring, such as parts of the actuating leg, can be designed to save material and therefore save space.
  • the intermediate wall is formed by solid insulating material or has at least one stiffener, in particular at least one rib-shaped stiffener.
  • the insulating material can be, for example, a plastic.
  • clamping spring already mentioned explained below are suitable, for example, as a clamping spring of a conductor connection terminal of the type explained above.
  • An advantageous embodiment relates to 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, an actuating leg protruding from the clamping leg and having two side webs which are integral with the clamping spring are formed and wherein the side webs are bent out of the clamping leg of the clamping spring with an average bending radius, and wherein the clamping spring is punched 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 less 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 in particular depending on the nominal conductor diameter or nominal conductor cross-section of the conductor connection terminal, for example as follows: Nominal conductor cross section Thickness of the metal sheet 2.5mm2 0.34mm 4mm2 0.43mm 6mm2 0.45mm 10mm2 0.55mm
  • a tab protruding from the plane of the driver opening adjoins the crossbar, which has a Has curvature, with the convex surface of the curvature facing the driver opening.
  • a curved bearing area can be provided on the actuating leg, which can conveniently rest on the spring driver and can slide along it during a pivoting movement of the actuating lever.
  • the tab is formed in one piece with the crossbar and is bent away from the crossbar. This allows the clamping spring with the actuating leg to be easily manufactured, for example in a stamping and bending process.
  • the free end of the actuating leg is bent with the crossbar in a direction pointing away from the spring arch. This allows a strong curvature to be provided on the tab without requiring excessive amounts 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 potentially 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 webs, varies over the longitudinal extent of the actuating leg, in particular with a reduction in width towards the free end of the actuating leg.
  • the width reduction can be designed in steps. In this way, elements of different widths can be guided through the driver opening, for example the spring driver on the one hand, and other elements such as parts of the clamping spring, for example the contact leg, on the other hand.
  • 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 the area in which the internal distance between the side webs is greater than in one or more other areas of the driver opening.
  • the clamping tongue tapers starting from the root area towards the clamping edge at the free end. In this way, any possible tilting of the clamping tongue in an opening in the busbar can be avoided, for example due to a possible inclination of the clamping spring.
  • the root area is considered to be 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 leg are located in this part of the clamping spring.
  • the clamping leg has a clamping leg bow formed between the spring arch and the root area, and that the actuating leg has a length from the root area to a force introduction area which is designed to act an actuating force on the actuating leg, which is greater than the length of the clamping leg from the root area to the apex of the clamping leg arch.
  • This can be achieved, for example, in that the effective length of the actuating leg with respect to the actuation, measured from the junction 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 junction of the actuating leg from the clamping leg to to the apex of the spring arch.
  • a spring with a shortened buckling length can be realized.
  • Such a clamping spring is better protected against undesirable bending or kinking of the clamping leg when a clamped electrical conductor is pulled from the outside.
  • the clamping leg has a clamping leg bow formed between the spring arch and the root area, which abuts 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 bending length of the clamping leg can be advantageously shortened.
  • the smallest width of a side web is a maximum of 20% of the largest width of the clamping leg.
  • very thin side bars can be provided, which contributes to material savings on the clamping spring and also contributes to the compact design of the conductor connection terminal. Since the side bars only have to transmit tensile forces, a very narrow design is easily possible.
  • the smallest width of a side web is a maximum of 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 operating lever.
  • the spring driver extends through the narrower region of the driver opening, at least in the open position. Since only tensile forces have to be transmitted through the actuating leg and its side webs, these can be made correspondingly thin, which leads to material savings in the material of the clamping spring.
  • the clamping spring in which at least the clamping tongue is provided by a region punched out of the actuating leg and 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.
  • a curved bearing area is formed on the actuating leg, the actuating lever having a socket bearing on which the curved bearing area slides along the confirmation leg of the clamping spring during a pivoting movement of the actuating lever.
  • the socket bearing can be arranged in particular on the spring driver.
  • the curved bearing area may have a constant curvature or a varying curvature. In any case, there is a curvature over the entire extent of the curved bearing area and no 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 initially runs along the first busbar section, starting from the clamping leg runs and at least part of the driver opening protrudes beyond the curvature area of the busbar.
  • 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 close to the first busbar section.
  • the actuating leg of the clamping spring slides at least partially on the busbar when the clamping leg is displaced. Accordingly, the actuating leg is additionally guided by the busbar when the actuating lever is pivoted.
  • the actuating leg in particular in the closed position, when no electrical conductor is clamped to the clamping point, the actuating leg can run at least approximately parallel to the busbar, for example parallel to the first busbar section.
  • the conductor connection terminal can be made particularly small.
  • a relatively large lever arm is also realized for actuating the clamping leg. This allows the operating force of the operating lever to be reduced.
  • a small distance can be realized between the actuating leg and the busbar, which is also conducive to a small design of the conductor connection 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 less 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. This prevents wear between the spring driver and the actuating leg in the closed position.
  • the spring driver can 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 driving area of the clamping spring, for example not into the driver opening. This maximizes the distance between the spring driver and the actuating leg.
  • a guide element is formed on the insulating material housing, which forms a housing-side guide of the actuating leg at least in certain actuation situations and / or pivoting positions of the actuating lever.
  • the actuating leg can be guided by the guide element, in particular when the actuating lever carries out a pivoting movement close to the open position. This counteracts excessive deflection or bending of the actuating leg, especially at the transition to the clamping leg.
  • the actuating lever initially carries out a certain idle stroke during the pivoting movement from the closed position to the open position without any actuating forces originating from the clamping spring.
  • the actuating lever can therefore initially be actuated essentially without any effort, e.g. with the fingertip, in order to then be able to grasp it easily manually.
  • the effective load arm of the actuating lever is shorter in the open position than in the closed position. This allows the actuation lever to be operated ergonomically and with a pleasant feel.
  • the changed transmission ratio keeps the actuating force at a comfortable level, for example at a force level that remains essentially the same over the pivoting angle.
  • the crossbar and / or the curved bearing area slides along the spring driver, in particular on the socket bearing, when the actuating lever moves from the closed position to the open position, thereby moving towards the instantaneous pole of the actuating lever approximated, e.g. B. the instantaneous pole that is effective in the course of the pivoting movement of the actuating lever.
  • the shortening of the load arm during the opening movement of the operating lever can be realized in a reliable manner.
  • the extent to which the crossbar approaches the instantaneous pole of the operating lever when the operating 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 operating lever.
  • the conductor connection terminal has at least one force reduction mechanism, by means of which the amount of the contact force can be reduced when the actuating lever is released from the locked open position and/or when the actuating lever is locked into the open position.
  • the contact point which is loaded with the contact force, is relieved when the actuating lever is released.
  • This has the advantage that releasing the actuating lever is simplified and wear on the elements in contact with one another can be reduced or completely avoided.
  • the force reduction mechanism the amount of the tracking force can be reduced more or less depending on the embodiment, up to a complete cancellation of the tracking force (tracking force equal to zero). Accordingly, those elements that are loaded with the contact force at the contact point can be separated from one another by the force reduction mechanism. For example, an area of the actuating lever supported on the busbar can be lifted off the busbar.
  • the force reduction mechanism is at least partially formed by mechanical elements of the actuating lever, the clamping spring and/or the insulating material 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 constructions.
  • the mechanical elements are formed by interacting contours of the actuating lever, the clamping spring and/or the insulating material housing.
  • the force reduction mechanism can be formed by the first support point in combination with the point of application of the clamping spring on the actuating lever, for example 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 leg of the clamping spring.
  • These two contact points ie the first support 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 moves from the open position towards the closed position, a tilting moment initially results, which relieves the load the contact point of the actuating lever on the busbar and leads to the previously mentioned lifting at this point.
  • the contact force can be reduced by the force reduction mechanism to an amount that is less than the amount of force acting on the actuating lever from the clamping spring via the actuating leg.
  • 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 mentioned 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 connection terminal.
  • the actuating lever is supported at a main contact point in the conductor connection terminal, via which the largest force of the clamping spring acting on the actuation lever can be transmitted to at least one other element of the conductor connection terminal, the main contact point being pivoted when the Operating lever is discontinuously movable over its pivoting range at least twice, at least three times or at least four times.
  • the location of the main contact point can therefore be changed several times during the pivoting movement of the operating lever. The change can occur in particular discontinuously, i.e. suddenly. This is also to be considered an independent aspect of the present invention.
  • a pivoting mechanism of the actuating lever can be realized, which enables a comparatively complex, discontinuous movement sequence, which in turn enables particular advantages in terms of haptics for the user and protection of the components.
  • the comparatively complex movement sequence can be made possible by design features that are relatively easy to implement, so that the conductor connection terminal can still be provided cost-effectively.
  • 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 supported on the busbar.
  • the first location of the main contact point can be, for example, the second support point.
  • the actuating lever is supported in the open position on a first and a second support point spaced therefrom, the actuating lever being supported on the insulating material housing at the first support point and the actuating lever on the busbar at the second support point is supported, with a second location of the main contact point being formed at the first support point of the actuating lever on the insulating material housing.
  • the actuating lever has at least one laterally projecting bearing element, which is opposed to 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 material housing.
  • the laterally projecting bearing element therefore does not have the function of an axis of rotation in the sense of a fixed bearing, but only forms a temporary position in certain areas Pivoting situations of the actuating lever provide a storage of the actuating lever in the sense of a support relative to the insulating material housing.
  • the actuating lever has a first guide section which is immersed in a recess in the busbar at least over a partial area of the pivoting area, with a fourth location of the main contact point being formed between the first guide section and the insulating material housing.
  • the actuating lever has at least one support projection for supporting the actuating lever on the busbar, which projects laterally from the actuating lever relative to the first guide section, a fifth location of the main contact point being formed between the support projection of the actuating lever and the busbar .
  • the first support point forms a first instantaneous pole of the pivoting movement of the actuating lever when the actuating lever is released from the locked 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 fixing it, and when releasing the actuating lever as the instantaneous pole and second location of the main contact point.
  • the previously explained conductor connection terminal can be designed, for example, as a terminal block, for example as the terminal block mentioned at the beginning.
  • the first conductor connection has an actuation lever that can be operated without tools, the actuation lever being pivotably mounted in the insulating material housing for actuating the spring-loaded terminal connection of the first conductor connection, and the actuation lever having a manual actuation section for manually actuating the actuation lever. This allows convenient operation of the first conductor connection without the need for additional tools.
  • the actuating section of the actuating lever of the terminal block protrudes at least partially beyond the outer contour of the insulating material housing over the entire pivoting process.
  • the free end of a manual operating section (operating handle) of the operating lever can protrude beyond the outer contour of the insulating material housing. This allows easy operation of the operating lever near the closed position.
  • the actuating lever automatically maintains this position in the open position when it is placed in the open position. This is ensured by the design of the conductor connection terminal.
  • the automatic holding of the operating lever in the open position can be achieved by supporting it on the first and second support points.
  • the actuating lever can be held in the open position by being pulled against the first and second support points with a tensile force exerted on the actuating lever by the clamping spring.
  • the actuation of the conductor connection 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 pressure force is transmitted, as is the case with actuation solutions with a push button.
  • Another difference is the way the operating lever is operated manually, as opposed to a pusher.
  • it is advantageous to manually apply a pulling force to the operating lever at the manual operating portion in order to move the operating lever from the closed position to the open position. During this movement, the manual operating force can also be changed into a pressing force.
  • the conductor connection terminal according to the invention can be designed such that the conductor insertion opening is designed as part of the insulating material housing and not as part of other elements, such as the actuating lever. In this way, good accessibility of the conductor insertion opening and an electrical conductor inserted into the conductor insertion opening can be achieved.
  • the actuating lever is mounted in the insulating material housing, i.e. corresponding storage elements are formed within the insulating material housing.
  • one or more first conductor connections and/or one or more second conductor connections can be present.
  • the second conductor connection has an actuation opening for inserting a separate actuation tool to open the second clamping point.
  • actuation tool can be, for example, a screwdriver.
  • the second clamping point can also have a lever actuation for opening, for example 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 pusher can be part of the terminal block.
  • the second conductor connection can also be designed as a spring-loaded terminal connection with a clamping spring for clamping 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 it is not intended to be designed as a spring-loaded terminal connection.
  • the actuating section of the actuating lever of the terminal block protrudes at least partially beyond the outer contour of the insulating material 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, wherein the The first busbar section is electrically connected to the third busbar section or can be connected via an electrical connecting element of the terminal block.
  • the first and third busbar sections can be part of a common busbar, i.e. permanently connected to one another, or can be separate busbar sections that are only connected to one another when necessary, such as in the case of a disconnect terminal.
  • the terminal block has a continuous busbar from the first busbar section to the third busbar section. Accordingly, the busbar establishes an electrically conductive connection from the first busbar section to the third busbar section.
  • the busbar can be formed in one piece or 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, for example in such a way that, starting from the curvature region, a gradation follows 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 curvature area are lower than the curvature area. In this way, deeper conductor connection points can be realized in the second and/or third busbar section, whereby the conductor connection terminal can be designed to be particularly compact and small.
  • the first conductor connection has a first conductor insertion opening
  • the second conductor connection has a second conductor insertion opening
  • the actuating lever is arranged at least with the majority of its longitudinal extent between the first and the second conductor insertion opening. In this way, the actuating lever is arranged relatively centrally in the terminal block and therefore requires little additional installation 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 passes through the second conductor insertion opening can be guided to the second clamping point, the first conductor insertion direction being arranged obliquely to the second conductor insertion direction by an angular offset.
  • the terminal block has at least one mounting rail fastening element on a mounting rail fastening side, through 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 as well as a large number of terminal blocks to be lined up on the mounting rail.
  • the first conductor insertion opening is completely or at least partially visible when viewed from above on the housing side of the terminal block facing away from the mounting rail fastening side. This makes it easy for the user to see where the first electrical conductor is to be inserted, especially if the terminal block is already attached to the mounting rail.
  • the first conductor insertion opening is arranged below the actuating lever in a plan view of the housing side of the terminal block facing away from the mounting rail fastening side and is completely or at least partially visible in every pivoting position of the actuating lever.
  • the first conductor insertion opening therefore remains at least partially visible, i.e. it is at least not completely covered by the actuating lever.
  • the actuating lever in an ergonomically favorable and space-saving manner and, in particular, to allow a certain protrusion of the actuating section of the actuating lever over the outer contour of the insulating material housing.
  • the actuating lever is embedded in the housing side of the insulating material housing of the terminal block facing away from the mounting rail fastening side. This allows space-saving accommodation with good access to the operating lever.
  • the outer surface of the manual actuation section of the actuation lever in the closed position follows the surface contour of the insulating material housing adjacent to the outer surface of the manual actuation section. Accordingly, the outer surface of the manual actuation section adapts to the surface contour of the insulating material housing, so that essentially no step or step-like transition occurs there. 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-holding in the open position. This has the advantage that the operating lever does not have to be held by the user.
  • the actuating lever can be locked, for example, by one or more of the first, second or fourth fixing elements.
  • the indefinite term “a” is not to be understood as a numeral. For example, if we are talking about a component, this should be interpreted in the sense of “at least one component”. If angle information is given in degrees, these refer to a circular measure of 360 degrees (360°).
  • the conductor connection 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 spring force by means of the clamping spring 4 and the busbar 3.
  • 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 stored 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 curvature region 35, so that the busbar 3 has a curved and/or angled shape overall.
  • the second busbar section 31 is at least predominantly arranged within the busbar channel 22.
  • the busbar 3 has a conductor feedthrough opening 36 in the first busbar section 30, through which an electrical conductor that is to be clamped can be guided.
  • the conductor feedthrough opening 36 can be surrounded by side walls formed on the first busbar section 30, which z. B. can be designed in the form of a material passage 32.
  • the conductor feedthrough opening 36 can have wall sections projecting on all sides from the busbar level, which 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 abutting the free end of the contact leg 40 on the inside of the conductor feedthrough opening 36 and/or the material passage 32.
  • the clamping spring 4 extends further over the spring arch 41 to the clamping leg 43. From the clamping leg 43 the actuating leg 42 protrudes, the actuating leg 42 being at a relatively large angle, e.g. B. greater than 45 degrees or greater than or equal to 90 degrees, from which the clamping leg 43 is bent.
  • the actuating leg 42 ends at its free end with a crossbar 48, which has the in Figure 1 unrecognizable driver opening 46 limited.
  • a material section of the clamping spring material is bent into a tab 93 which projects from the rest of the actuating leg 42 and which has at least part of a curved bearing area 49 of the actuating leg 42.
  • the curved bearing area 49 together with the socket bearing 59 of the actuating lever 5, forms a type of storage consisting of a cylinder and a cylinder shell, similar to a ball-and-socket storage system.
  • clamping leg 43 extends to a clamping tongue 44, which is bent from the clamping leg 43 in the opposite direction to 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 forms together with the busbar 3, i.e. H. the conductor feedthrough 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 connection terminal 1 has an actuation lever 5, which is arranged predominantly in the area surrounded by the insulating material housing 2 and essentially extends outwards with a manual actuation section 50, for example an actuation handle, where a manual actuation of the actuation lever 5 can take place.
  • a manual actuation section 50 for example an actuation handle
  • the first clamping point 7 can be opened or closed. If the operating lever 5 is in the in Figure 1 closed position shown, the first clamping point 7 is also 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 from it without any effort, since the clamping edge 45 is moved away from its contact point on the busbar 3 or the electrical conductor by actuating the actuating lever 5.
  • the conductor insertion direction L1 can be aligned obliquely to the extension direction of the manual actuation section 50. Accordingly, an angle can be formed between the extent of the outer surface of the manual operation portion 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 material housing 2. 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 which penetrates the actuating lever 5, e.g. B. in the area of the manual actuation section 50.
  • the test recess 51 is essentially aligned with the test opening 23 of the insulating material housing 2.
  • the test opening 23 extends to the clamping spring 4, e.g. B. up to the spring arch 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 material housing 2.
  • the overload protection element 29 can be designed as an island-shaped material region of the insulating material housing 2, which is arranged within the spring arch 41.
  • the clamping spring 4 can rest against the overload protection element 29 with one or more areas, for example the spring arch 41 and/or the clamping leg 43, i.e. abut against the overload protection element 29.
  • the actuating lever 5 is guided in several ways in the conductor connection terminal 1, stored and fixed in certain positions such as the closed position and the open position.
  • the operating lever 5 has a first fixing element 52 in the lower region, ie the part of the operating lever 5 remote from the manual operating section 50, and a second fixing element 53 in the rear area, ie the area facing away from the spring driver 54.
  • the first and/or the second fixing element 52, 53 can be designed, for example, as a locking element.
  • 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 actuating 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 busbar 3, and is secured against lateral tilting.
  • the first guide section 57 runs through a recess 33 in the busbar 3, for example a recess 33 in the first busbar section 31.
  • the recess can be designed, for example, as a longitudinal slot. If the operating lever 5 is pivoted, e.g. B. from the closed position to the open position, the first guide section 57 runs through this recess 33. It can also be provided that the actuating lever 5 runs 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 assembled state, projects 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 is initially not in engagement with the actuating leg 42 in the closed position, so that no spring load 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 curvature region 35 of the busbar 3.
  • the spring driver 54 merges on a curved inner contour of the actuating lever 5 into a storage area of the actuating lever 5, which in this case forms a socket bearing 59. As will be explained below, this pan 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
  • the closed position shown is fixed by means other than the first and second fixing elements 52, 53.
  • the second fixing element 53 is arranged within a free space in the insulating material housing 2, namely in a receiving pocket 28.
  • the second fixing element 52 is located near a first locking edge 21 of the insulating material housing 2, which, however, has no essential function in the closed position.
  • a second locking edge 91 is also formed in the insulating material housing 2, which has a function, as described below, in the open position of the actuating lever 5.
  • the structure and functionality of a second guide section 55 of the actuating lever 5 will also be discussed below using further illustrations.
  • the actuating lever 5 can be secured in the closed position against falling out of the insulating material housing 2. Furthermore, the inclusion of the second fixing element 53 in the receiving pocket 28 ensures that the operating lever 5 can be unscrewed in the event of a kickback when the operating lever 5 is transferred from the open position to the closed position. A further safeguard against the actuating lever 5 falling out or being removed is provided by the canopy 24, particularly in the open position.
  • a guide element 95 is also formed on the insulating material housing 2.
  • the guide element 95 forms a housing-side guide of the actuating leg 42, at least in certain actuation situations and/or pivoting positions of the actuating lever 5.
  • the actuating leg 42 can slide along the guide element 95 at least temporarily during a pivoting movement of the actuating lever into the open position.
  • conductor connection terminal 1 can be designed as a single connection terminal, as shown, or as part of a conductor connection terminal comprising further conductor connections, e.g. B. as part of the following based on the Fig. 15 explained conductor connection terminal.
  • the Figure 2 shows, as a further feature of the insulating material housing 2, a canopy 24 arranged below the manual actuation section 50, ie a type of boundary wall of the insulating material housing 2, which ensures that the current-carrying elements within the conductor connection terminal 1 are shielded from the outside environment, so that contact safety (finger safety) the conductor connection terminal 1 is created in particular in the open position of the operating lever 5.
  • the canopy 24 works together with the second guide section 55, as will be explained below using other sectional drawings.
  • Figure B shows how the spring driver 54 grips the end of the actuating leg 42 and continues to guide it via the socket bearing 59.
  • the shape of the socket bearing 59 ie the concave inner contour, is adapted to the convex outer contour of the curved bearing area 49, so that the curved bearing area 49 can slide with little friction within the socket bearing 59.
  • the actuating leg 42 is deflected and the clamping leg 43 is also moved accordingly, so that the clamping tongue 44 is moved from its original position Figure 1 recognizable position.
  • the effective load arm of the actuating lever 5 is shortened during an opening movement, since the curved bearing area 49 slides along the socket bearing 59 and thereby approaches the virtual pivoting axis of the actuating lever 5.
  • the Figure 4 shows the operating lever 5 now in the open position, ie at the end of the pivoting movement.
  • the actuating lever 5 can still be pivoted by a small angle, e.g. B. a maximum of 5 degrees or a maximum of 10 degrees, must be overpressed in order to be resistant to damage, but the actual open position is already in the in Figure 4 position shown is reached. If the actuating lever 5 is overpressed, this overpressing movement is limited by a rear stop 94 on the insulating material housing. Based on the total 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.
  • the actuating lever 5 is located in each actuating position predominantly within the area surrounded by the outer contour 27 of the insulating material housing 2.
  • the actuating lever 5 is also located in the open position in a substantial area of its longitudinal extent, at least 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 particularly robustly and therefore cannot be damaged so easily and/or cannot tilt so easily.
  • a robust support for the actuating lever 5 in the insulating material housing 2 is realized.
  • the first fixing element 52 is now locked behind the second locking edge 91, and the second fixing element 53 is locked behind the first locking edge 21.
  • the actuating lever 5 has this, ie in the transition from the position according to Figure 3 according to the position Figure 4 , in addition to the pure pivoting or rotating movement, an additional displacement movement is carried out, that is, it has moved towards the first clamping point 7 by a certain displacement path aligned along the second busbar section 31 in order to close a fourth fixing element 64 over the curvature region 35 of the busbar 3 raise and then lower vertically for the displacement movement into a dead center position, so that at least part of the curvature region 35 engages in a form-fitting manner in the fourth fixing element 64.
  • the position of the actuating lever can be determined via a two-point contact of the actuating lever 5 on the insulating material housing 2 and/or the busbar 3 and a substantially central force application of the clamping spring 4 via the actuating leg 42 5 can be secured.
  • This type of force transmission creates a kind of funnel shape for the force effects, through which the actuating lever 5 is particularly securely secured against undesirable changes in position, for example due to vibrations.
  • the Figure 4a clarified, in particular by the enlarged detail H, how the fourth fixing element 64 rests on the curvature 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 a part of the second fixing element 53 protrudes below the second busbar section 31 and can be seen there.
  • the Figure 4a also illustrates 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 a stripped area at the end 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 actuating lever 5 is now moved back into the closed position, the clamping leg 43 springs back until the clamping edge 45 rests on the stripped area of the electrical conductor 92 and presses it against the busbar 3, for example against the inside of the conductor feed-through opening 36 or the material passage 32 .
  • the intermediate wall 26 is in turn supported and opposed to the support force of the actuating lever 5 at the first support point 84 by the clamping spring 4, since the clamping spring 4 is in the area of the contact leg 40 and / or the spring arch 41 from the opposite side presses against the intermediate wall 26.
  • a self-supporting system can advantageously be realized.
  • a plastic component is supported against a metal component that induces or initiates the force, which is advantageous when exposed to moisture, which can lead to a reduction in the stability of the plastic material.
  • the actuating lever 5 is supported on the top of the busbar 3, in particular in the second busbar area 31, via laterally projecting shoulder-shaped support projections 58.
  • the support projection 58 can form a support point for the actuating lever 5 on the busbar 3, particularly in the open position, wherein the support point can be arranged in the curvature 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, for example during a pivoting movement from the open position to the closed position.
  • the contact between the support projection 58 on the operating lever 5 and the support area 34, which serves to support the movement of the operating lever 5 towards the open position can be canceled, 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 does not protrude or essentially does not protrude beyond the outer contour 27 of the insulating material housing 2 in the closed position.
  • the sectional view in the sectional plane G illustrates the fixation of the operating lever 5 in the closed position.
  • the operating lever 5 has the second guide section 55 which projects downwards on the manual operating section 50 and which extends through a lever feedthrough slot 25 in the canopy 24 at least in this position of the operating lever 5.
  • Laterally projecting 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 projecting inwards from opposite side walls of the insulating material housing 2.
  • the opening in the insulating material housing 2 such as the lever feedthrough slot 25, which is covered by the operating lever 5 in the closed position of the actuating lever 5 and is therefore shielded from the outside environment, the opening leading 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 contact protection is provided.
  • the previously explained elements of the actuating lever 5 are additionally illustrated by the various representations in the Figures 7 to 9 clarified, which show the operating lever 5 in a separate illustration. It can be seen in particular that the actuating lever 5 does not have to be designed exactly symmetrically to a pivoting plane of the actuating lever 5. Instead, as in Figure 7 is illustrated, the spring driver 54 and the first guide section 57 connected thereto can be arranged off-center, for example slightly offset to the side. In order to optimize the assembly of the individual parts, in particular the actuating lever 5, in the conductor connection terminal 1, the spring driver 54 itself can also be designed asymmetrically, e.g. B. taper asymmetrically towards the end on one side.
  • the Figure 9a shows the actuating lever 5 in a view in which the support projection 58 can be clearly seen.
  • the support surface formed by the support projection 58 is shown in the figure for clarity Figure 9a shown hatched.
  • the actuating lever 5 can be designed as a material and weight-optimized component with a series of recesses that are interrupted by stiffening walls and in this way ensure the necessary robustness and rigidity of the Actuating lever ensures the actuating movements.
  • the operating lever 5 can z. B. be made in one piece as a plastic component, e.g. 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 at least partially accommodated in these side recesses 89 in the closed position.
  • the Figure 9b shows the conductor connection terminal 1 in the open position of the actuating lever 5. As already mentioned, in this open position the lever feedthrough slot 25 in the canopy 24 is at least largely closed.
  • the Figure 9b also shows that the insulating material housing 2 can have a lever opening 88, which allows installation of the actuating lever 5 when the insulating material housing 2 is fully assembled.
  • the actuating lever can be mounted from above through the lever opening 88, so to speak.
  • 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 actuating lever 5 can have according to the invention.
  • the operating lever 5 In the longitudinal direction of the operating lever 5, ie in the direction a, the operating lever 5 has the length a.
  • the actuating lever 5 In the rear area, the actuating lever 5 has its storage area, which includes the third area 63, for example. In this storage area, the actuating lever 5 is stored in the insulating housing 2.
  • the storage area has a length c.
  • 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 actuating 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, for example, at least 0.07 or at least 0.08 or at least 0.09.
  • FIGS. 10 and 11 show the clamping spring 4 in a separate illustration. This additionally makes it clear that the clamping spring 4 on the clamping leg 43 has a root area 96, 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 designed with a relatively large recess which forms the driver opening 46. Starting from the clamping leg 43, only two relatively thin side webs 47 extend past the contact leg 40 on the left and right. The side webs 47 can be very thin because they transmit a pure tensile force. The contact leg 40 also extends through the recess.
  • the actuating leg 42 can be made from the same material together with the clamping tongue 44, in that the clamping tongue 44 is separated from the material of the actuating leg 42, for example by a punching process. Since the side webs 47 can be so narrow, this leaves a relatively wide central material section to form the clamping tongue 44, so that a relatively wide clamping edge 45 can be provided. This is beneficial for good electrical contact and secure clamping of an electrical conductor. In addition, such narrow side webs 47 ensure high elasticity of the actuating leg 42. In this way, the actuating leg 42 is connected to the clamping leg 43 in a relatively flexible manner.
  • the side webs 47 can be designed like "thin legs", they therefore act like a kind of flexible connecting element, ie like a thread or rope connection under tensile load.
  • the clamping spring 4 can be designed in one piece with all the features described, i.e. H. be made integrally from a flat sheet of metal, e.g. B. punched and bent from a metal sheet with a predetermined thickness.
  • the material width of the side webs 47 can vary over their longitudinal extent. For example, a gradation or a transition from an initially narrower area starting from the clamping leg 43 to a wider area of the side webs 47 towards the transverse web 48 can be present.
  • the wider area of the side webs 47 is particularly effective at higher spring loads.
  • the inner distance between the side webs 47 in the area of the driver opening 46, in which the contact leg 40 protrudes through the driver opening 46 can be greater than in the area of the driver opening 46, which serves to accommodate the spring driver 54.
  • the clamping tongue 44 can in particular be trapezoidal or can become narrower towards the free end. This has the advantage that if the clamping spring 4 is positioned at an angle, the clamping spring 4 is not blocked on the inner side surfaces of the material passage 32.
  • the actuating leg 42 has the crossbar 48 at the end.
  • a curved tab 93 protrudes from the crossbar 48.
  • the tab 93 forms on the underside, i.e. 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 leg 42 can be manufactured 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 from the crossbar 48 in another, opposite bending direction. In this way, a relatively large angle, exceeding 90 degrees, can be achieved between the tab 93 and the side webs 47 while avoiding excessive degrees of deformation.
  • the actuating leg 42 has two side webs 47 spaced apart from one another, which are connected to one another at their free end via the cross web 48.
  • the side webs 47 and the crossbar 48 enclose the driver opening 46, which serves to engage the spring driver 54.
  • the tab 93 which points into the driver opening 46, adjoins the crossbar 48 and has a bend, so that this bend forms a curved bearing area 49 on its convex surface, which is designed to come into contact with the socket bearing 59 of the actuating lever 5.
  • the free end of the actuating leg 42 with the crossbar 48 is bent away from the spring arch 41.
  • 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 arch 41.
  • the actuating leg 42 thus runs at a minimal distance from the busbar 3 in the assembled and unactuated 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 to beyond the curvature region 35.
  • the actuating leg 42 can, in particular, protrude with its driver opening 46 beyond the first busbar section 30, so that the spring driver 54 can engage into the driver opening 46 through the busbar 3 without any obstacle.
  • the clamping spring 4 can be designed to be particularly elastic. This design also prevents the clamping spring from tilting significantly in the event of a diagonal pull.
  • the actuating leg 42 can also be provided with guide means in the insulating material housing, e.g. B. an inner housing wall or housing edge, can be guided in the longitudinal direction of the actuating leg 42.
  • an inner housing edge is formed, for example, by the end of the intermediate wall 26 which is free into the interior of the insulating material housing 2 (see also 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 by guiding the curved bearing area 46 in the socket bearing 59 in the direction of a pivoting axis of the actuating lever 5.
  • a clamping spring 4 with a shortened buckling length can be realized.
  • Such a clamping spring 4 is better protected against undesirable bending or kinking 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 gap between the actuating leg 42 and the busbar 3 can be, for example, smaller than 1 mm, or smaller than 0.5 mm.
  • An exemplary advantageous value is 0.3 mm. In this way, the actuating leg 42 does not yet touch the busbar, so that wear due to friction is avoided.
  • the effective length of the actuating leg 42 with respect 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 Vertex of the spring arch 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 extent. This can e.g. B. can be realized in that the spring driver 54 becomes narrower towards its free end, e.g. B. by a one-sided or double-sided bevel. A first area 61 and a second area 62 can thus be formed on the spring driver 54, which adjoins the first area 61. 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 merge into a third area 63, which is wider than the second area 62. In this way, the spring driver 54 can easily be inserted into the Driver opening 46 are introduced.
  • a guide for the side webs 47 of the actuating leg 42 can be formed.
  • the guide can in particular be designed as a bilateral guide for both side webs 47.
  • This embodiment of a spring driver 54 is suitable not only for an actuating lever 5 with the pivotability described, but also for other types of actuating elements that are mounted in a displaceable manner, ie are designed in the form of a sliding element.
  • the actuating leg 42 essentially does not change its position with respect 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 slightly 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.
  • What is advantageous, for example, is a mean bending radius R3 of this bending area, which has a maximum of three times the thickness of the metal sheet. This enables the force of the actuating lever 5 to be optimally introduced into the clamping spring 4 via the actuating leg 42. This results in a direct translation, a short stroke path and, as a result, essentially no stretching in the actuating leg 42.
  • such a construction allows the components used and the entire conductor connection terminal 1 to be manufactured easily.
  • the clamping spring 4 can be arranged with its predominant parts and in particular with the actuating leg 42 on one and the same side of the busbar 3, in particular on the 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 illustration.
  • the busbar 3 is additionally shown with a third busbar section 37 adjoining the second busbar section 31.
  • the busbar 3 has further conductor feedthrough openings in the third busbar section 37, at which further clamping points can be formed.
  • the first and second busbar sections 30, 31 have the elements already described.
  • the recess 33 for guiding the first guide section 57 and the support areas 34 for supporting the support projections 58 of the actuating lever 5 can be seen.
  • the recess 33 can only be arranged in the second busbar section 31 or, as shown, can also extend into the curvature area 35 or even into the first busbar section 30.
  • the recess 33 is surrounded on all sides by the material of the busbar 3. It can be designed as a recess that only partially penetrates the material of the busbar from the side of the support area 34 or as a completely continuous recess (without bottom).
  • the busbar 3 is designed to be angled and/or curved by the curvature region 35, ie such that an angle is formed between the first busbar section 30 and the second busbar section 31.
  • the curvature region 35 can form an internal 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 curvature region 35 can, for example, be designed 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 merges into a convexly curved section with a radius of curvature R2, each in a viewing direction towards the support region 34. It is advantageous if the radius R1 is larger than the radius R2, e.g. B. at least twice as big.
  • the actuating lever 5 can at least partially rest on the curved area of the busbar 3, i.e. H. in the curvature area 35, be supported and run along it during a pivoting movement.
  • the busbar 3 described can also be designed as a multi-part design, e.g. 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 use in a disconnect terminal.
  • the Figure 15 shows a further embodiment of a conductor connection terminal 1, in this case in the form of a terminal block, with four conductor connection terminals 1 arranged next to each other being shown as an example.
  • the conductor connection terminals 1 have the previously described structure 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 in this case corresponds to the embodiments of Figures 13 and 14 formed, ie it has the third busbar section 37.
  • the third busbar section extends into an area shown on the right of the respective conductor connection terminal 1, 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 correspondingly two second terminal points 9.
  • the respective second conductor connection 8 is accessible via further conductor insertion 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 may 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 fastened to a mounting rail, for example 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 mounting plane, and the conductor insertion direction L2 in an angular range of 75 to 105 degrees.
  • the mounting rail fastening elements 82 are arranged on a mounting rail fastening side of the insulating material housing 2.
  • the actuating levers 5 can be seen on the housing side of the insulating material housing facing away from the mounting rail fastening side, which is also referred to as the housing top 83.
  • the outer surface 65 of the manual actuation section of the actuation lever 5 in the closed position has the same course as the adjacent surface contour of the insulating material 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 actuation opening 80 of the insulating material housing 2 or can be realized by a separate actuation tool, which can be guided through the actuation opening 80 to the second conductor connection 8 if necessary, 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 actuation opening 80 of the insulating material housing 2 or can be realized by a separate actuation tool, which can be guided through the actuation opening 80 to the second conductor connection 8 if necessary, 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 arch 90 is.
  • the clamping leg 43 is bent towards the interior 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.
  • clamping spring 4 according to Figures 16 and 17 a different design of the clamping tongue 44 may have, e.g. B. with initially decreasing width towards the clamping edge 45, which becomes larger 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 the Figures 10 and 11 is shown.
  • the Figure 19 shows the conductor connection terminal 1, which was already shown at the beginning Figures 1 to 4 was explained in a to Figure 4 Similar representation, but with different cutting planes.
  • the actuating lever 5 is 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 support point 84 is formed between the first fixing element 52 of the actuating lever 5 and the second locking edge 91
  • the second support point 85 is formed between the fourth fixing element 64 of the actuating lever 5 and the curvature region 35 of the busbar 3.
  • a connecting line 86 is shown, which runs through the first support point 84 and the second support point 85.
  • the direction of action of the tensile force acting from the clamping spring 4 on the actuating lever 5, which is transmitted via the actuating leg 42, is also shown by a straight line 87.
  • the direction of the line of action 87 corresponds to the direction of the actuating leg 42 or the direction of the side webs 47 of the actuating leg 42. It can be seen that an angle ⁇ is formed from the actuating leg 42 or the line of action 87 to the connecting line 86.
  • the angle ⁇ is thus defined in a mathematically positive direction from the line of action 87 or the direction of the actuating leg 42 to the connecting line 86.
  • the angle ⁇ is 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 in comparison to the support plane formed by the first support point 84 and the second support point 85 (represented by the connecting line 86).
  • the sequence of movements of the actuating lever 5 shown will now explain the advantageous force reduction mechanism, which is effective at least when the actuating lever 5 is moved from the open position towards the closed position.
  • the actuating lever 5 is supported at a main contact point K1, K2, K3, K4, K5 in the conductor connection terminal 1.
  • the largest force of the clamping spring acting on the actuating lever is transmitted to at least one other element of the conductor connection terminal via the main contact point K1, K2, K3, K4, K5.
  • the main contact point K1, K2, K3, K4, K5 can experience an unsteady (erratic) change of location several times 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 area of the actuating lever 5 supported on the busbar 3, for example at the second support point 85.
  • the first location of the main contact point K1 can alternatively also be formed at the first support point 84.
  • the pivoting process of the actuating lever 5 begins with a first instantaneous pole M1 of the pivoting movement at the first support point 84, i.e. between the second locking 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 support point 84.
  • the detent at the second support point 85 is released, i.e. the actuating lever 5 is slightly raised in this area, so that the fourth fixing element 64 and its adjacent material areas are not loaded by friction on the busbar 3 and are therefore not worn out.
  • the second fixing element 53 can be lifted over the first locking edge 21, so to speak, whereby a certain distance can arise between the second fixing element 53 and the first locking edge 21.
  • the Figure 21 shows the further sequence of movement of the actuating lever 5 when moving into the closed position. If the actuating lever 5 is moved further towards the closed position, the lateral bearing element 56 of the actuating lever 5 comes into contact with an edge of the insulating material housing 2. At this time, the instantaneous pole of the pivoting 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 side bearing element 56 and the insulating material housing 2. At this point, a third location of the main contact point K3 of the actuating lever 5 can also be formed for a further phase of movement of the actuating lever 5.
  • the contact between the side bearing element 56 and the insulating material housing 2 is removed again.
  • the actuating lever 5 can now slide along a guide track 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 support projection 58 of the actuating lever 5 comes into contact with the support 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 support area 58 of the actuating lever 5 and the support area 34 of the busbar.
  • the Figure 22 now shows the position of the operating 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 guide track of the insulating material housing 2 or lie on this guide track shortly before reaching the open position, so that the fourth fixing element 64 and the support projection 58 of the actuating lever 5 are opposite the busbar 3 are lifted or at least slightly spaced.

Landscapes

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

Claims (13)

  1. Borne de connexion de conducteur (1) comprenant 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 à pouvoir pivoter sur une zone de pivotement et qui peut pivoter entre une position ouverte et une position fermée, le ressort de serrage (4) comprenant une branche d'appui (40), un arc de ressort (41) se raccordant à la branche d'appui (40), une branche de serrage (43) se raccordant à l'arc de ressort (41) et munie d'une languette de serrage (44), et une branche d'actionnement (42) dépassant de la branche de serrage (43),
    dans laquelle
    le levier d'actionnement (5) coopère avec la branche d'actionnement (42) pour déplacer la languette de serrage (44),
    le levier d'actionnement (5) est monté sur la barre conductrice (3) au moins sur une partie de la zone de pivotement,
    le levier d'actionnement (5) présente un premier tronçon de guidage (57), caractérisée en ce que
    - la barre conductrice (3) présente un évidement (33), et
    - le levier d'actionnement (5) s'enfonce par son premier tronçon de guidage (57) dans l'évidement (33) situé dans la barre conductrice (3), au moins sur une partie de la zone de pivotement.
  2. Borne de connexion de conducteur (1) selon la revendication 1,
    caractérisée en ce que le levier d'actionnement (5) présente au moins une saillie de support (58) pour supporter le levier d'actionnement (5) sur la barre conductrice (3).
  3. Borne de connexion de conducteur (1) selon la revendication 2,
    caractérisée en ce que le levier d'actionnement (5) est guidé par le premier tronçon de guidage (57) dans l'évidement (33) situé dans la barre conductrice (3) lors d'un mouvement de pivotement au moins sur une partie de la zone de pivotement.
  4. Borne de connexion de conducteur (1) selon l'une des revendications 2 à 3,
    caractérisée en ce que la saillie de support (58) est disposée au voisinage du premier tronçon de guidage (57) sur le levier d'actionnement (5), en particulier est disposée de manière adjacente au premier tronçon de guidage (57) sur le levier d'actionnement (5).
  5. Borne de connexion de conducteur (1) selon l'une des revendications 2 à 4,
    caractérisée en ce que l'évidement (33) situé dans la barre conductrice (3) est en forme de fente et, en particulier, est entouré sur sa périphérie par le matériau de la barre conductrice (3).
  6. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que la branche d'appui (40) est supportée sur la barre conductrice (3).
  7. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que le levier d'actionnement (5) est monté flottant dans le boîtier en matériau isolant (2).
  8. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que la branche d'actionnement (42) présente une zone d'entraînement, et le levier d'actionnement (5) présente un entraîneur de ressort (54) qui coopère avec la zone d'entraînement pour déplacer la languette de serrage (44).
  9. Borne de connexion de conducteur (1) selon la revendication 8,
    caractérisée en ce que dans la position fermée, l'entraîneur de ressort (54) ne touche pas la branche d'actionnement (42).
  10. Borne de connexion de conducteur (1) selon l'une des revendications 8 à 9,
    caractérisée en ce que dans la position fermée, l'entraîneur de ressort (54) ne s'étend pas jusqu'à la zone d'entraînement du ressort de serrage (4).
  11. Borne de connexion de conducteur (1) selon l'une des revendications 8 à 10,
    caractérisée en ce que dans la position fermée, l'entraîneur de ressort (54) est disposé au moins partiellement ou entièrement à l'intérieur de l'évidement (33).
  12. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que le levier d'actionnement (5) est supporté sur la barre conductrice (3) du fait qu'au moins une saillie de support (58) du levier d'actionnement (5) est supportée sur une zone de support (34), tournée vers le levier d'actionnement (5), de la barre conductrice (3).
  13. Borne de connexion de conducteur (1) selon l'une des revendications précédentes,
    caractérisée en ce que le premier tronçon de guidage (57) ou un élément, relié à ce dernier, du levier d'actionnement (5) traverse l'évidement (33) et coopère avec un autre élément de la borne de connexion de conducteur (1) sur le côté de la barre conductrice (3) détourné du levier d'actionnement (5).
EP19714617.8A 2018-03-28 2019-03-28 Borne de connexion de conducteur Active EP3776742B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22170265.7A EP4068519A1 (fr) 2018-03-28 2019-03-28 Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur, ainsi que borne serre-fils

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202018101728.4U DE202018101728U1 (de) 2018-03-28 2018-03-28 Leiteranschlussklemme, Klemmfeder einer Leiteranschlussklemme sowie Reihenklemme
PCT/EP2019/057863 WO2019185799A1 (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

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP22170265.7A Division EP4068519A1 (fr) 2018-03-28 2019-03-28 Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur, ainsi que borne serre-fils
EP22170265.7A Division-Into EP4068519A1 (fr) 2018-03-28 2019-03-28 Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur, ainsi que borne serre-fils

Publications (2)

Publication Number Publication Date
EP3776742A1 EP3776742A1 (fr) 2021-02-17
EP3776742B1 true EP3776742B1 (fr) 2024-03-20

Family

ID=65995723

Family Applications (2)

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EP19714617.8A Active EP3776742B1 (fr) 2018-03-28 2019-03-28 Borne de connexion de conducteur
EP22170265.7A Pending EP4068519A1 (fr) 2018-03-28 2019-03-28 Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur, ainsi que borne serre-fils

Family Applications After (1)

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EP22170265.7A Pending EP4068519A1 (fr) 2018-03-28 2019-03-28 Borne de connexion de conducteur, ressort de serrage d'une borne de connexion de conducteur, ainsi que borne serre-fils

Country Status (5)

Country Link
US (1) US11605907B2 (fr)
EP (2) EP3776742B1 (fr)
CN (2) CN115588857A (fr)
DE (2) DE202018101728U1 (fr)
WO (1) WO2019185799A1 (fr)

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JP7384686B2 (ja) * 2020-02-06 2023-11-21 Idec株式会社 接続装置
GB2621484A (en) * 2021-03-04 2024-02-14 Honeywell Int Inc An electrical socket assembly and methods of installation and assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837526B1 (fr) * 1996-10-16 2001-01-03 Legrand Borne de connexion automatique, et appareil électrique équipé d'une telle borne de connexion

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Publication number Priority date Publication date Assignee Title
DE3621369A1 (de) * 1985-08-13 1987-02-19 Broekelmann Jaeger & Busse Anschluss- bzw. verbindungsklemme fuer elektrische geraete
FR2829878A1 (fr) * 2001-09-20 2003-03-21 Entrelec Dispositif de raccordement a ressort de connexion manoeuvre par une came
CN102132460B (zh) * 2008-08-27 2013-09-18 菲尼克斯电气公司 电接线端子
DE102011011080B4 (de) * 2011-02-11 2013-04-11 Wago Verwaltungsgesellschaft Mbh Federklemmanschluss und Leiteranschlusseinheit
TW201507300A (zh) * 2013-08-07 2015-02-16 Switchlab Inc 導線端子座改良結構
DE102014114026B4 (de) * 2014-09-26 2023-03-30 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme und Verfahren zu deren Montage
DE202016100798U1 (de) * 2016-02-16 2017-05-17 Wago Verwaltungsgesellschaft Mbh Federanschlussklemme
DE202016103363U1 (de) * 2016-06-24 2017-09-28 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE102017103508B3 (de) * 2017-02-21 2018-06-07 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0837526B1 (fr) * 1996-10-16 2001-01-03 Legrand Borne de connexion automatique, et appareil électrique équipé d'une telle borne de connexion

Also Published As

Publication number Publication date
US11605907B2 (en) 2023-03-14
DE202018101728U1 (de) 2019-07-01
CN111903004A (zh) 2020-11-06
US20210013640A1 (en) 2021-01-14
DE102019108009A1 (de) 2019-10-02
CN111903004B (zh) 2022-09-16
EP4068519A1 (fr) 2022-10-05
CN115588857A (zh) 2023-01-10
WO2019185799A1 (fr) 2019-10-03
EP3776742A1 (fr) 2021-02-17

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