EP3664223B1 - Federanschlussklemme - Google Patents

Federanschlussklemme Download PDF

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Publication number
EP3664223B1
EP3664223B1 EP19197583.8A EP19197583A EP3664223B1 EP 3664223 B1 EP3664223 B1 EP 3664223B1 EP 19197583 A EP19197583 A EP 19197583A EP 3664223 B1 EP3664223 B1 EP 3664223B1
Authority
EP
European Patent Office
Prior art keywords
busbar
housing
lever
spring
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19197583.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3664223A1 (de
Inventor
Philipp OBER-WÖRDER
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
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Application filed by Wago Verwaltungs GmbH filed Critical Wago Verwaltungs GmbH
Publication of EP3664223A1 publication Critical patent/EP3664223A1/de
Application granted granted Critical
Publication of EP3664223B1 publication Critical patent/EP3664223B1/de
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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/424—Securing in base or case composed of a plurality of insulating parts having at least one resilient insulating part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5213—Covers
    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • 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
    • 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
    • H01R4/4846—Busbar details
    • H01R4/4852—Means for improving the contact with the conductor, e.g. uneven wire-receiving surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2491—Terminal blocks structurally associated with plugs or sockets

Definitions

  • the present invention relates to a spring connection terminal for electrical conductors.
  • a conductor terminal with a housing, a pivoting lever, a current bar accessible via an insertion opening of the housing and a clamping spring is, for example, from DE 10 2015 104 625 A1 known.
  • the pivoting lever of the conductor connection terminal has an axle strut which is rotatably mounted in the housing and about which the pivoting lever can be pivoted between its open position and its closed position.
  • a receiving opening of the pivoting lever is formed between an actuating handle and a pusher element of the pivoting lever, through which a holding leg and a clamping leg of the clamping spring are passed.
  • DE 102014 119 421 A1 discloses the preamble of claim 1.
  • the 10 2016 116 966 A1 relates to a spring terminal connection with at least a clamping spring for clamping an electrical conductor to the spring clamp connection.
  • the spring-loaded terminal connection has an actuating element for opening a terminal point for the electrical conductor that is at least partially formed by means of a clamping edge of the clamping spring.
  • the actuating element has a spring engagement area which is set up to deflect an actuating section of the clamping spring at least when the clamping point is opened. The actuating element is supported against the force of the clamping spring acting on the spring engagement area on a supporting section of the clamping spring.
  • the invention is based on the task of creating a spring connection terminal that is as improved as possible.
  • a spring connection terminal for connecting an electrical conductor.
  • the spring connection terminal has a bus bar and a clamping spring and a housing and a lever.
  • the busbar is designed for making electrical contact with the electrical conductor.
  • the busbar and the clamping spring and the lever are at least partially accommodated in the housing.
  • the housing is preferably electrically insulating, for example made of plastic, and has the effect that electrically conductive elements, such as busbars or clamping springs, cannot be directly touched by a user's hand.
  • the lever has a first bearing disk with a first part-circular outer contour for mounting the lever in a first bearing shell.
  • the lever has a second bearing disk with a second part-circular outer contour for mounting the lever in a second bearing shell.
  • the second bearing washer is spaced from the first bearing washer.
  • the second bearing washer is preferably at least axially separated from the first bearing washer direction spaced.
  • the lever has an operating handle which is connected to the first bearing washer and to the second bearing washer.
  • the clamping spring has a clamping leg. Together with the busbar, the clamping leg forms a clamping point for clamping the electrical conductor to the busbar.
  • the lever has a driver which is designed to move the clamping leg from a closed position into an open position when the lever is pivoted.
  • the first bearing shell is formed from a first housing section of the housing with a part-circular inner contour and from a first busbar wall section of the busbar with an inner contour, wherein the first busbar wall section of the busbar has a part-circular inner contour, and/or the second bearing shell is made of a second housing section of the housing having an inner contour in the form of a part circle and formed from a second busbar wall section of the busbar with an inner contour, the second busbar wall section of the busbar having a part circular inner contour.
  • a radius of the first partially circular outer contour of the first bearing washer is not larger than a radius of the partially circular inner contour of the first housing section and/or the first busbar wall section.
  • a radius of the second part-circular outer contour of the second bearing washer is not larger than a radius of the part-circular inner contour of the second housing section and/or the second busbar wall section.
  • the first part-circular outer contour of the first bearing disk and the part-circular inner contour of the first housing section and the part-circular inner contour of the first busbar wall section have the same radius.
  • the second part-circular outer contour of the second bearing washer and the part-circular inner contour of the second housing section and the part-circular inner contour of the second busbar wall section have the same radius.
  • the housing has a receiving part with an interior space for receiving at least the busbar and a cover.
  • the cover closes an opening of the receiving part that faces the interior.
  • the cover has the first housing section to form the first bearing shell.
  • the cover advantageously has the second housing section for forming the second bearing shell.
  • the housing has a first guide wall and/or a second guide wall of a conductor routing channel.
  • the conductor routing channel guides the electrical conductor to the terminal point.
  • the electrical conductor is inserted into a conductor opening from the outside.
  • the first and/or second guide wall is formed, for example, by the cover of the housing.
  • the conductor routing channel is closed all the way around, at least in sections.
  • the conductor routing channel is advantageously formed at least in sections in the cover.
  • a conductor guide channel for receiving the electrical conductor is formed in the area of the first bearing disk and the second bearing disk by a space between the first bearing disk and the second bearing disk.
  • the space is also delimited by the conductor rail at least on a third side.
  • the first housing section and a first inner side of the first, facing towards the electrical conductor are aligned Bearing washer at least in conductor insertion direction.
  • the second housing section and a second inner side of the second bearing disk facing the electrical conductor are aligned at least in the conductor insertion direction. Alignment includes a small misalignment within the manufacturing tolerances. The aim is that the individual conductors of a stranded wire do not collide with the offset formed edge and thus bend in such a way that these individual conductors no longer reach the clamping point.
  • the conductor routing channel is closed laterally by the first inner side of the first bearing disk and the first housing section and the first busbar wall section, except for gaps between the first bearing disk and the first housing section and between the first bearing disk and the first busbar wall section and between the first busbar wall section and the first housing section.
  • the conductor routing channel is preferably closed at the side at least over a height of the electrical conductor.
  • the gaps are advantageously limited to a minimum required for manufacture or assembly.
  • the gaps shown in the figures are only exemplary and do not limit protection.
  • the gaps between the first bearing disk and the first housing section and between the first bearing disk and the first busbar wall section and between the first busbar wall section and the first housing section are closed to the outside by walls of the housing.
  • the walls of the housing advantageously border directly on the gaps.
  • the conductor routing channel is closed laterally by the second inner side of the second bearing disk and the second housing section and the second busbar wall section, except for gaps between the second bearing disk and the second housing section and between the second bearing disk and the second busbar wall section and between the second busbar wall section and the second housing section.
  • the conductor routing channel is preferably closed at the side at least over a height of the electrical conductor.
  • the gaps are advantageously limited to a minimum required for manufacture or assembly.
  • the gaps shown in the figures are only exemplary and do not limit protection.
  • the gaps between the second bearing disk and the second housing section and between the second bearing disk and the second busbar wall section and between the second busbar wall section and the second housing section are closed to the outside by walls of the housing.
  • the walls of the housing advantageously border directly on the gaps.
  • the busbar forms a contact frame with a base section and a fastening section and the first busbar wall section and/or the second busbar wall section.
  • the contact frame is preferably designed to accommodate the clamping spring, so that a self-supporting system is formed.
  • the base section and the fastening section and the first busbar wall section and the second busbar wall section of the busbar are formed in one piece from a metal part.
  • the clamping spring has the clamping limb and a contact limb and a spring bow connecting the clamping limb and the contact limb.
  • the spring arch can also be referred to as the spring root.
  • the clamping spring has exactly one spring bow.
  • the contact leg of the clamping spring and the fastening section of the busbar have a bearing for mounting the contact leg and the fastening section on one another.
  • the fastening section has an opening in which a formation of the clamping spring is positioned to form the bearing, or vice versa with an opening in the clamping spring and a formation on the fastening section.
  • the first busbar wall section and/or the second busbar wall section has a surface adjoining the inner contour, which in particular is part-circular on, which forms a stop for the lever in the open position.
  • the first housing section of the housing and/or the second housing section of the housing has a housing surface adjoining the part-circular inner contour, which forms a stop for the lever in the closed position.
  • the housing has a cover with a first housing section to form the first bearing shell and with a second housing section to form the second bearing shell.
  • a first part-circular inner contour of the first housing section preferably extends in the conductor insertion direction—starting from the direction of the conductor insertion channel—seen to behind an axis of rotation of the first bearing disk.
  • a second part-circular inner contour of the second housing section preferably extends in the conductor insertion direction—starting from the direction of the conductor insertion channel—seen to behind an axis of rotation of the second bearing disk.
  • the first bearing washer in the open position rests against the partially circular inner contour of the first housing section and the particularly partially circular inner contour of the first busbar wall section.
  • the first bearing washer in the closed position bears against the part-circular inner contour of the first housing section and on the in particular part-circular inner contour of the first busbar wall section.
  • the second bearing washer in the open position rests against the part-circular inner contour of the second housing section and on the part-circular inner contour of the second busbar wall section.
  • in the closed position the second bearing washer rests against the part-circular inner contour of the second housing section and on the part-circular inner contour of the second busbar wall section.
  • the first bearing washer does not lose contact with the part-circular inner contours of the first housing section and the first busbar wall section during pivoting.
  • the second bearing washer preferably does not lose contact with the part-circular inner contours of the second housing section and the second busbar wall section during pivoting.
  • the likelihood of a stranded conductor becoming entangled in the remaining gaps is significantly reduced.
  • the conductor rail has a lug to form a conductor collecting pocket for the electrical conductor, the lug limiting the insertion depth of the electrical conductor.
  • the fastening section of the busbar has an extension as a support for supporting a contact leg of the clamping spring.
  • the first part-circular outer contour of the first bearing disk and the second part-circular outer contour of the second bearing disk define an axis of rotation of the lever when the lever is pivoted from the closed position into the open position. Accordingly, the lever can be moved from the open position to the closed position by a further actuation.
  • the driver is arranged at least partially within a first circular surface of the first bearing disk defined by the first outer contour and/or at least partially within a second circular surface of the second bearing disk defined by the second outer contour.
  • the driver has a curved surface, so that when the lever is pivoted, the distance between a region of the surface of the driver that is in contact with the clamping leg and the axis of rotation changes.
  • the distance is preferably greater in the open position than in the closed position.
  • the driver has a predominantly oval or predominantly kidney-shaped or predominantly elliptical cross-sectional shape.
  • FIG 1 an exemplary embodiment of a spring connection terminal 1 for connecting an electrical conductor 2 is shown.
  • Conductor 2 is in figure 1 shown only partially and schematically.
  • the conductor 2 is a cable with insulation and is designed as solid, stranded or finely stranded.
  • the conductor terminal 1 has in the embodiment of figure 1 one Busbar 100, a clamping spring 200, a housing 300 and a lever 400.
  • the conductor terminal 1 has the function of connecting the conductor 2 and creating a mechanical and electrical connection.
  • An electrical connection is established between the conductor 2, for example a copper or aluminum conductor, and the busbar 100.
  • the conductor rail 100 is also made of metal and has properties that are optimized for electrical conductivity and electrical contact with the conductor 2 .
  • the busbar 100 and the clamping spring 200 and the lever 400 are at least partially accommodated in the housing 300 .
  • the lever 400 partially protrudes from the housing 300.
  • the clamping spring 200 and the busbar 100 are surrounded by the electrically insulating housing 300 .
  • the lever 400 is shown in section.
  • the lever 400 has a first bearing disk 410 with a first partially circular outer contour 411 for mounting the lever 400 in a first bearing shell 510 .
  • a second bearing disk 420 of the lever 400 is not visible due to the sectional view. So the lever 400 in the embodiment of figure 1 similar or identical to the lever 400 in the embodiment of FIG figure 3 be formed and have the second bearing disk 420 with a second part-circular outer contour 421, wherein the second bearing disk 420 is designed to support the lever 400 in a second bearing shell 520.
  • the second bearing washer 420 is spaced apart from the first bearing washer 410 .
  • the clamping spring 200 has in the embodiment of figure 1 a clamping leg 210 and a contact leg 220 and a clamping leg 210 and contact leg 220 connecting spring bow 230. It is the clamp spring 200 in figure 1 shown in sectional view.
  • the clamping leg 210 forms with the busbar 100 a clamping point K for clamping the electrical conductor 2 to the busbar 100. It is in figure 1 the situation without a clamped electrical conductor 2 is shown.
  • the lever 400 is shown with an actuating handle 490 which, as in FIG figure 3 is connected to both the first bearing washer 410 and the second bearing washer 420. If the actuating handle 490 of the lever 400 is gripped and moved manually, the lever 400 executes a pivoting movement, since the actuating handle 490 is connected to the first bearing disk 410 via the web 415 .
  • the lever 400 with the actuating handle 490, web 415 and the first bearing disk 410 is formed in one piece, for example as a one-piece plastic part produced by injection molding.
  • the lever 400 has in the embodiment of figure 1 a driver 430 which is designed to move the clamping leg 210 from a closed position GS into an open position OS when the lever 400 is pivoted.
  • a driver 430 which is designed to move the clamping leg 210 from a closed position GS into an open position OS when the lever 400 is pivoted.
  • the open position OS is shown in a sectional view without the electrical conductor 2 being inserted.
  • the first part-circular outer contour 411 of the first bearing disk 400 is shown, which defines an axis of rotation D of the lever 400 when the lever 400 is pivoted.
  • the axis of rotation D is in the embodiment figure 1 not a bearing element, but to be understood as a mathematical axis of rotation.
  • the part-circular outer contour 411 of the first bearing disk 410 slides on the part-circular inner contours 111 and 311 of the first busbar wall section 110 and the first housing section 310, respectively.
  • the bearing disk 410 is to be distinguished from a shaft or the like.
  • the part-circular outer contour 411 of the bearing disk 410 has the largest outer radius r in the bearing area.
  • the first bearing washer 410 preferably remains in contact with both the first busbar wall section 110 and the first housing section 310 during a major part of the pivoting movement.
  • the instantaneous center is stationary, so that the axis of rotation D does not move over the pivoting movement.
  • the driver 430 Since the driver 430 is offset from the axis of rotation D within the bearing disk 410 - that is, within an area defined by the bearing disk 410 - is arranged, the driver 430 leads in the pivoting movement of the lever 400 a movement on a circular path.
  • the driver 430 has in the embodiment of figure 1 a curved surface 435 on.
  • the curved surface 435 causes the distance d between a region of the surface 435 in contact with the clamping leg 210 and the axis of rotation D to change when the lever 400 is pivoted.
  • the driver 430 in the embodiment of figure 1 has a predominantly kidney-shaped cross-section. Alternatively (not shown), the driver can also have other shapes, for example predominantly elliptical cross-sectional shapes.
  • the Figures 1 and 2 show the difference between closed position GS in figure 1 and open position OS in figure 2 .
  • the driver 430 first comes into contact with the clamping leg 210 of the clamping spring 200 near the axis of rotation D and deflects it.
  • the contact area between the clamping leg 210 and the area of the surface 435 of the driver 430 changes in the direction of greater distance d between the contact area and the axis of rotation D.
  • the open position OS is shown, in which the distance d is maximized.
  • the clamping leg 210 is deflected accordingly.
  • the lever 400 is in an over-center position, so that a spring force vector F spring at the contact area between the clamping leg 210 and driver surface 435 - seen in the insertion direction ER - points behind the pivot point D and the lever 400 is thus held in the open position OS by the spring force F spring becomes.
  • the clamping leg 210 has a clamping edge 211 .
  • the clamping edge 211 deforms the conductor surface of the electrical conductor 2 and maximizes the pull-out force.
  • the clamping leg 210 has a bend 212 between the spring arc 230 and the clamping edge 211 .
  • the bend 212 is in the embodiment figure 1 spaced from both the clamping edge 211 and the spring arc 230 by straight portions of the clamping leg 210.
  • the bend causes a more obtuse angle between the conductor insertion direction ER and the section of the clamping leg 210 with the clamping edge 211.
  • the angle between the conductor insertion direction ER and the clamping leg 210 is preferably chosen so that a solid electrical conductor 2 can be plugged in directly, without the lever 400 from the To pivot closed position GS in the open position OS.
  • the driver 430 is arranged in such a way that the driver 430 touches the clamping leg 210 exclusively between the bend 212 and the clamping edge 211 via the lever pivoting path for driving the clamping leg 210 .
  • the driver 430 first touches the clamping leg 210 in a region adjoining the bend 212, so that the acting lever arm is initially small.
  • the spring force F spring is also smaller when the deflection is small.
  • the driver 430 touches the clamping leg 210 closer to the clamping edge 211, so that the effective lever arm is greater.
  • a conductor routing channel LF is shown in the housing 300, which enables the electrical conductor 2 to be routed to the terminal point K.
  • the clamping leg 210 in the closed position GS the electrical conductor 2 can still be plugged in directly.
  • the electrical conductor 2 is guided on all sides to the terminal point K.
  • the space up to the terminal point K is in the exemplary embodiment figure 1 by a channel delimited on all sides by walls in the housing 300 and after exiting the channel in the housing 300 by the lever 400 and the clamping spring 200 and the busbar 100 and the housing 300.
  • the driver 430 has a bevel 438 which is designed to be inclined against the conductor insertion direction ER in order to guide the electrical conductor 2 in the direction of the bottom region 230 of the busbar 200 to the clamping point K when it touches during the direct insertion of the conductor 2 .
  • the driver 430 forms part of a funnel-shaped taper of the conductor entry channel LF that acts during insertion in a gap between the housing 300 and the clamping leg 210.
  • the conductor rail 100 has the fastening section 140 with an extension 145, the extension 145 being designed as a support for supporting a contact leg 220 of the clamping spring 200.
  • the force of the deflected clamping spring 200 is absorbed by the bearing on the extension 145 and forces acting on the housing 300 are distributed more evenly.
  • a spring terminal 1 is shown in a sectional view.
  • the spring connection terminal 1 has a housing 300 , a lever 400 , a clamping spring 200 and a busbar 100 .
  • the lever 400 of the spring connection terminal 1 is shown in the open position OS.
  • a clamping leg 210 of the clamping spring 200 is correspondingly deflected by a driver 430 of the lever 400 .
  • a first part-circular outer contour 411 of a first bearing disk 410 of lever 400 and a part-circular inner contour 311 of a first housing section 310 of housing 300 and a part-circular inner contour 111 of a first busbar wall section (110) of busbar 100 have the same radius r.
  • figure 3 - are a second part-circular outer contour 421 of a second bearing disk 420 of lever 400 and a part-circular inner contour 321 of a second housing section 320 of housing 300 and a part-circular inner contour 121 of a second busbar wall section 120 of busbar 100, which preferably also have the same radius r.
  • the radii r of the first bearing washer 410 and the second bearing washer 420 are also the same. With the same radii, the bearing forces are distributed as evenly as possible over the pivoting path on the contours.
  • the conductor routing channel LF is closed laterally through the first inner side 412 of the first bearing disk 410 and the first housing section 310 and the first busbar wall section 110 except for gaps.
  • the conductor routing channel LF is advantageously closed over a height of the electrical conductor 2 except for gaps between the first bearing disk 410 and the first housing section 310 and between the first bearing disk 410 and the first busbar wall section 110 and between the first busbar wall section 110 and the first housing section 310.
  • gaps remain, which are unavoidable due to the design during manufacture and assembly.
  • the embodiment of figure 2 shows an example of particularly small gaps, although actual implementations of the exemplary embodiment can also require significantly larger gaps. It is important in this exemplary embodiment that these gaps are in turn closed to the outside by a wall of the housing 300 directly adjoining the gap. If the housing is made of an insulating material, sufficient electrical insulation is ensured in the area of the gaps.
  • the busbar 100 has a lug 150 for forming a conductor collecting pocket AT for the electrical conductor 2 .
  • the tab 150 is bent out of a bottom section 130 of the conductor rail 100 and in a U-shape.
  • the tab 150 limits an insertion depth of the electrical conductor 2.
  • the tab 150 is also bent over in such a way that the end of the tab 150 with the clamping edge 211 of the clamping spring 200 in the open position OS minimizes the gap between the two.
  • the clamping leg 210 is positioned closer to the contact leg 220 in the open position OS than in the closed position GS.
  • the spring connection terminal 1 has an at least two-part housing 300.
  • the housing 300 has a receiving part 340 with an interior space 341 for receiving at least the busbar 100 and a cover 360 which closes an opening facing the interior space 341 .
  • the cover 360 has the first housing section 310 to form the first bearing shell 510 .
  • the cover 360 has a conductor routing channel LF for introducing the electrical conductor 2 to the terminal point K.
  • the cover 360 is connected to the receiving part 340 of the housing 300 via latching elements 362, 362.
  • the lid has 360 a recess for receiving the spring bow 230 of the clamping spring 200.
  • the busbar 100 is first assembled with the clamping spring 200 to form a unit, and this unit is inserted into the receiving part 340 .
  • the cover 360 can then be introduced into the receiving part 340 together with the lever 400 until the latching means 362, 362 latch.
  • FIG 3 an embodiment of a spring connection terminal 1 is shown in an exploded view. Shown is a clamping spring 200 with a contact leg 220, a spring bow 230 adjoining the contact leg and a clamping leg 210 adjoining the spring bow 230 with a clamping edge 211 at the free end of the clamping leg 210.
  • the clamping leg 210 also has a bend 212, which defines the angle of attack of a region of the clamping leg 210 adjoining the clamping edge 211 .
  • the clamping spring 200 of the embodiment of figure 3 is formed in one piece from a sheet of spring steel.
  • the lever 400 has a first bearing disk 410 and a second bearing disk 420.
  • the facing inner sides 412, 422 of the first and second bearing disc 410, 420 are in the embodiment of figure 3 connected to each other via a driver 430.
  • the first bearing disk 410 is connected to an actuating handle 490 of the lever 400 via a first web 415 .
  • the second bearing disk 420 is also connected to an actuating handle 490 of the lever 400 via a second web 425 .
  • the actuating handle 490, the webs 415, 425, the bearing disks 410, 420 and the driver 430 are formed from a plastic material in one piece—manufactured, for example, by injection molding.
  • Part-circular outer contours 411, 412 of the first and second bearing disks 410, 420 define an axis D about which the lever 400 can be pivoted.
  • the driver 430 is advantageously designed as a continuous strut 430 which extends between the first bearing disk 410 and the second bearing disk and which connects the first bearing disk 410 to the second bearing disk 420 . In the embodiment of figure 3 the driver 430 extends predominantly parallel to the axis of rotation D.
  • the spring connection terminal 1 has a first bearing shell 510 for the first bearing disk 410 and a second bearing shell 520 for the second bearing disk 420.
  • the first bearing shell 510 is formed from a first housing section 310 of the housing 300 with a part-circular inner contour 311 and from a first busbar wall section 110 of a busbar 100 likewise with a part-circular inner contour 111 .
  • the second bearing shell 520 is formed from a second housing section 320 of the housing 300 with a part-circular inner contour 321 and from a second busbar wall section 120 of the busbar 100 likewise with a part-circular inner contour 121 .
  • both bearing discs 410, 420 and associated bearing shells 510, 520 are advantageously formed in parallel.
  • the first housing portion 310 and the second housing portion 320 are part of a housing member that in the embodiment of figure 3 is designed as a cover 360.
  • the cover 360 has a widening 350 in the area for inserting a conductor (not shown) in order to be able to accommodate the largest possible conductor together with its plastic insulation.
  • the widening 350 can be used to position the cover 360 in the base body 340 and, if necessary, latch it.
  • the spring terminal 1 of the embodiment of figure 3 also shows that the busbar 100 has a fork contact 160 with a first leg 161 and a second leg 162 .
  • a plug-in connection is realized by means of the fork contact 160, which is suitable for connection to a male mating plug with a blade contact.
  • the electrical conductor can thus be electrically connected to an electrical assembly or to a plug connector by means of the spring connection terminal 1 .
  • a spring terminal 1 is shown in a partially exploded view.
  • the spring connection terminal 1 has a busbar 100 in the form of a non-closed contact frame KR.
  • the contact frame KR is formed by a base section 130, a first busbar wall section 110, a second busbar wall section 120 and a fastening section 140 of the busbar 100.
  • the Fastening section 140 has fastening means 149 for fastening a contact leg 220 of a clamping spring 200 .
  • the clamping spring 200 is shown with a clamping leg 210, spring bow 230 and the contact leg 220.
  • the contact leg 220 has an extension 250 as a fastening means 250 at its free end, which engages in an opening 149 in the fastening section 140 of the conductor rail 100 .
  • the bearing leg 220 of the clamping spring 200 is fixed to the busbar 100 by means of the extension 250 and the opening 149 .
  • a clamping edge 211 at the free end of the clamping leg 210 is opposite the bearing and presses under prestress on the base section 130 of the busbar 100 when the clamping spring 200 is mounted (in figure 4 not shown).
  • a bearing 149, 250 is formed by the contact leg 220 of the clamping spring 200 and the fastening section 140 of the busbar 100 for supporting the contact leg 220 and the fastening section 140 on one another.
  • other fastening means 149, 250 can also be provided, for example the fastening section 140 can have a pin which engages in an opening in the contact leg 220 of the clamping spring 200 (in figure 4 not shown).
  • the bottom portion 130 and the attachment portion 140 and the first bus bar wall portion 110 and the second bus bar wall portion 120 of the bus bar 100 are integrally formed from a metal piece.
  • copper can be used as the metal for the busbar 100 .
  • first busbar wall section 110 and/or the second busbar wall section 120 has a surface 115 adjoining the partially circular inner contour, which forms a stop 115 for the lever 100 in the open position OS.
  • first busbar wall section 110 has a stop 115 .
  • second busbar wall section 120 could also be lengthened for a stop (in figure 4 not shown).
  • a stop 115 formed by means of the busbar 100 can reduce the load on the housing 300 from forces of the lever 400 in the open position OS.
  • first housing section 310 of housing 300 and/or second housing section 320 of housing 300 has a housing surface 315 adjoining part-circular inner contour 311, 321, which forms a stop 315 for lever 400 in the closed position GS.
  • second housing section 320 has a stop 315 .
  • the first housing section 310 could also have a stop (in figure 4 not covered).
  • the clamping spring 200 is first connected to the busbar 100 .
  • An extension 250 of a contact leg 220 of the clamping spring 200 is introduced into an opening 149 on the fastening section 140 of the busbar 100 .
  • the clamping leg 210 of the clamping spring 200 is deflected and positioned behind the elevation 131 of the bottom section 130 of the busbar 100 .
  • the clamping spring 200 and the busbar 100 are positively connected to one another.
  • a contact insert suitable for bulk goods is created.
  • the lever 400 is positioned on a cover 360 of the housing 300 in a pre-assembly position. If the contact insert consisting of busbar 100 and clamping spring 200 is in a receiving part 340 (in figure 4 not shown) of the housing 300 is introduced, the receiving part 340 is closed by the cover 360 (with lever 400) and the spring connection terminal 1 is thus completed.
  • FIG. 5a and 5b another exemplary embodiment of a spring connection terminal 1 is shown in a horizontal sectional view.
  • the spring connection terminal 1 has a housing 300 with a conductor opening 391 for an electrical conductor (in Figure 5a not shown), for example a cable with copper conductors surrounded by electrical insulation.
  • the housing 300 is in Figure 5a Shown partially transparent, so that other elements of the conductor terminal 1 are visible.
  • the housing 300 has a second opening for inserting a contact blade (in Figure 5a not shown) for an electrical knife-fork contact.
  • a fork contact 160 is formed by two legs 161, 162 of a busbar 100.
  • the Busbar 100 has a base section 130 with an elevation 131 for improved clamping of the electrical conductor (in Figure 5a not shown) on.
  • a conductor routing channel LF ranges in the embodiment of Figure 5a from the conductor opening 391 in the housing 300 to a lug 150 of the busbar 100.
  • the conductor routing channel LF is delimited on a first side by a first guide wall 331 and a first housing section 310 with a first part-circular inner contour 311 and a first bearing washer 410 and by a first busbar wall section 110 with a first part-circular inner contour 111.
  • first housing section 310 and the first bearing washer 410 and the first busbar wall section 110 in Figure 5a shown cut.
  • the first bearing disk 410 with part-circular outer contour 411 is rotatably mounted in the part-circular inner contours 311, 111 of the first housing section 310 and the first busbar wall section 110.
  • the conductor routing channel LF is delimited on a second side by a second guide wall 332 and a second housing section 320 with a second part-circular inner contour 321 and a second bearing washer 420 and by a second busbar wall section 120 with a second part-circular inner contour 121.
  • the second bearing disk 420 with part-circular outer contour 421 is rotatably mounted in the part-circular inner contours 321, 121 of the second housing section 320 and the second busbar wall section 120.
  • a particularly large conductor cross-section that can be inserted is achieved by a particularly wide conductor routing channel LF with a particularly narrow design of the housing 300 at the same time.
  • the guide walls 331, 332 of the conductor routing channel LF jump in the area of the conductor opening 391 advantageously to the outside, so that insulation of the electrical conductor (not shown) can also be introduced into this area.
  • an outer wall 341, 342 is also understood to mean a wall which is associated with two spring connection terminals and can also be referred to as a partition. This partition wall electrically insulates the busbars of two adjacent spring connection terminals 1 from each other (in Figure 5a not shown).
  • a width W LF of the conductor routing channel LF is defined in the area of the first bearing washer 410 and the second bearing washer 420 by the housing width W H minus the thicknesses of the first housing wall 341 and the second housing wall 342 and minus the thicknesses of the first bearing washer 410 and the second bearing washer 420 .
  • the maximum conductor cross section which is limited by the width W LF of the conductor routing channel LF, is decisive for the width W H of the housing 300 with the required electrical insulation values due to the thicknesses mentioned. No additional walls are required for storage or housing stabilization, so that the spring connection terminal 1 can be designed with an optimized width.
  • the housing 300 has the first guide wall 331 and the second guide wall 332 of the conductor routing channel LF, the conductor routing channel LF guiding the electrical conductor (not shown) to be inserted into the conductor opening 391 from the outside to the clamping point.
  • the conductor routing channel LF is formed by a space R between the first bearing disk 410 and the second bearing disk 420 to accommodate the electrical conductor in the region of the first bearing disk 410 and the second bearing disk 420 .
  • the space R is through the bottom portion 130 of the busbar 100 is limited.
  • the first housing section 310 and a first inner side 412 of the first bearing washer 410 facing the electrical conductor are aligned in the conductor insertion direction of the electrical conductor.
  • the second housing section 320 and a second inner side 422 of the second bearing washer 420 facing the electrical conductor are aligned in the conductor insertion direction of the electrical conductor.
  • the first inner side 412 of the first bearing disk 410 facing the electrical conductor and the first busbar wall section 110 of the busbar 100 are aligned in the conductor insertion direction of the electrical conductor.
  • the second inner side 422 of the second bearing disk 420 facing the electrical conductor and the second busbar wall section 120 of the busbar 100 are aligned in the conductor insertion direction of the electrical conductor. This largely avoids edges transverse to the insertion direction of the electrical conductor, which the electrical conductor could collide with. In addition, the risk is reduced that thin individual conductors of a finely stranded conductor are deflected at the edges and not routed to the terminal point.
  • the spring connection terminal 1 is advantageously designed for fine and stranded conductors.
  • the conductor routing channel LF is closed laterally by the first inner side 412 of the first bearing disk 410 and the first housing section 310 and the first busbar wall section 110 .
  • the closed area advantageously extends at least over the height of the electrical conductor in the spring connection terminal, starting from the base section 130 of the busbar 100.
  • the closed area is, apart from gaps, between the first bearing disk 410 and the first housing section 310 and between the first bearing disk 410 and the first busbar wall section 110 and between first busbar wall section 110 and first housing section 310 closed.
  • the conductor routing channel LF is also closed laterally by the second inner side 422 of the second bearing disk 420 and the second housing section 320 and the second busbar wall section 120 .
  • the closed one advantageously also extends at least over the height of the electrical conductor in the spring connection terminal, starting from the bottom section 130 of the busbar 100.
  • the closed area is except for gaps between the second bearing disk 420 and the second housing section 320 and between the second bearing disk 420 and the second busbar wall section 120 and between the second Busbar wall section 120 and second housing section 320 closed.
  • the gaps may vary depending on the manufacturing process. With regard to electrical insulation, however, even larger gaps are not critical, since they are advantageously completely closed to the outside by immediately adjacent housing walls 341, 342.
  • a spring terminal 1 which has a housing 300 with a cover 360.
  • the cover has the first housing section 310 to form the first bearing shell 510 and the second housing section 320 to form the second bearing shell 520 .
  • a first part-circular inner contour 311 of the first housing section 310 extends, starting from an opening 391 in the cover 360, viewed in the conductor insertion direction, to behind the axis of rotation of the first bearing disk 410 and the second bearing washer 420.
  • a second part-circular inner contour 321 of the second housing section 320 extends, starting from a Opening 391 in cover 360 viewed in the conductor insertion direction to behind the axis of rotation of the first bearing washer 410 and the second bearing washer 420.
  • the first bearing disk 410 and the first housing section 310 and the first busbar wall section 110 of the spring connection terminal 1 are designed in such a way that the first bearing disk 410 in the open position OS and in the closed position GS on the part-circular inner contour 311 of the first housing section 310 and on the part-circular inner contour 111 of the first busbar wall section 110 is applied.
  • the second bearing disk 420 and the second housing section 320 and the second busbar wall section 120 of the spring connection terminal 1 are advantageously designed such that the second bearing disk 420 in the open position OS and in the closed position GS on the part-circular Inner contour 321 of the second housing section 320 and the partially circular inner contour 121 of the second busbar wall section 120 abuts.
  • the bearing disks 410, 420 do not lose contact with the respective bearing trough 510, 520 over the pivoting path, and the probability of a strand of a fine-wire electrical conductor getting caught between the contours 111, 121, 311, 321, 411, 421 is significantly reduced.
  • FIG. 6 Another embodiment of a spring connection terminal 1 is in figure 6 shown schematically in sectional view.
  • the spring connection terminal 1 has a busbar 100, a clamping spring 200, a housing 300 and a lever 400 and is designed for connecting an electrical conductor.
  • the busbar 100 is bent to form a frame that encompasses at least one side and has a base section 130 and a busbar wall section 110 and a fastening section 140 on the upper side. At the top there is a window 149 into which the clamping spring 200 is suspended.
  • the busbar 100 has a support 145 on the upper side, which supports the contact leg 220 of the clamping spring 200 . Clamping spring 200 and busbar 100 form a self-supporting system.
  • the housing 300 has a base body 340 and a cover 360 which is fastened to the base body 340 in the assembled state.
  • the cover 360 forms a support 365 for the spring root 230 and prevents the release of the clamping spring 200 from the busbar 100 when a conductor is plugged in directly.
  • the support 365 of the housing 300 for the spring root 230 is in the exemplary embodiment Figure 6a formed as an approximately part-circular recess.
  • the spring root 230 appears in the embodiment of Figure 6a fully into the approximately part-circular recess 365.
  • the outer surface of the spring root 230 is supported on the inner surface of the approximately part-circular recess 365 .
  • the lever 400 has a fixed pivot point D on.
  • a part-circular outer contour of a first bearing disk 410 forms a running surface which rests on a part-circular inner contour of a busbar wall section 110 of the busbar 100 and a part-circular inner contour of a housing section 310 of the housing 300 rubs.
  • a continuous web 430 between the lever sides 410, 420 is provided as a driver 430, which enables the clamping spring 200 to be opened.
  • the driver 430 is in the embodiment Figures 6a and 6b arranged in such a way that the driver 430 touches the clamping leg 210 via the lever pivoting path for driving the clamping leg 210 exclusively between a bend 212 and spring root 230 .
  • Figure 6a is the closed position GS and Figure 6b the open position OS is shown in a sectional view.
  • Lever 400 and clamping spring 200 are designed in such a way that the open position OS is retained without additional latching. That is, the lever remains in the open position OS by self-locking, without the need for a locking element.
  • the driver 430 is in the embodiment Figures 6a and 6b within a surface of the first bearing disk 410 and a surface of a second bearing disk (not shown in the sectional view) in such a way that a spring force in the area of the closed position GS acts on the driver 430 predominantly in a tangential direction in relation to the pitch circle of each bearing disk 410, 420 and in the Area of the open position OS predominantly in the radial direction based on the pitch circle of each bearing disk 410, 420 acts on the driver 430.
  • the clamping leg 210 and the contact leg 220 of the clamping spring 200 are approaching one another or touching one another.
  • the clamping leg 210 and the contact leg 220 are at a maximum distance from one another in the closed position GS.
  • a conductor (not shown) can be connected to the conductor connection terminal 1.
  • the conductor is introduced through the conductor routing channel LF.
  • Power rail 100, lever 400 and cover 360 of the housing 300 form a conductor guide.
  • a conductor connection of a rigid conductor is possible (push-in). It is deflected by the rigid conductor when the clamping legs 210 of the clamping spring 200 are inserted. A clamping edge 211 of the clamping leg 210 penetrates into the material of the rigid conductor and prevents the conductor from being pulled out of the conductor connection terminal 1 up to a desired pull-out force.
  • the lever 400 is simply moved to the open position OS.
  • the embodiment of Figures 6a and 6b shows a conductor terminal 1 in a very compact arrangement, which allows a small space, in particular a small width and a low height.
  • FIG 7 An embodiment of a spring connection terminal 1 is in figure 7 shown in sectional view. It is shown that an electrical conductor 2 is connected in the spring connection terminal 1 .
  • the spring connection terminal 1 has a busbar 100 and a clamping spring 200 and a housing 300 and a lever 400 .
  • the lever 400 is designed to deflect a clamping leg 210 of the clamping spring 200 in order, for example, to remove the clamped conductor 2 from the spring connection terminal 1 again.
  • the lever 400 is in the closed position GS. Accordingly, an actuating handle 490 of the lever 400 is shown in an initial position. The lever 400 is pivoted within the housing 300 .
  • the lever 400 has a first bearing disk 410 with a first partially circular outer contour 411 for mounting the lever 400 in a first bearing shell.
  • the actuation handle 490 of the lever 400 is connected to the first bearing disk 410 via a first web 415 .
  • Lever 400 has a driver 430 which, when pivoting lever 400 to move clamping leg 210 from the closed position GS into an open position (in figure 7 not shown) is formed.
  • the clamping leg 210 of the clamping spring 200 forms with the busbar 100 a clamping point for clamping the electrical conductor 2 to the busbar 100. If the lever 400, as in figure 7 shown, at the same time in the closed position GS, the clamping leg 210 is not on the driver 430 of the lever 400.
  • the bearing shell has a contour that prevents the lever 400 from being able to move freely in the housing 300 when the conductor 2 is plugged in and the lever 400 is in the closed position.
  • the bearing shell has a nose 116 or projection 116, which partially surrounds the first bearing disk 410, so that the bearing disk 410 is not or only partially movable transversely to the insertion direction ER.
  • the driver 430 of the lever 400 abuts against a housing wall 319, so that the lever 400 cannot move or can only move to a limited extent in the opposite direction to the insertion direction ER.
  • FIG. 8 An embodiment of a spring connection terminal 1 is in figure 8 shown in sectional view.
  • the spring connection terminal has a busbar 100 and a clamping spring 200 and a housing 300 and an actuating element 400 .
  • the actuating element 400 is designed as a lever 400 .
  • the actuating element 400 can be designed as a pusher or slide or the like.
  • the clamping spring 200 has a clamping leg 210 for clamping an electrical conductor (in figure 8 not shown). Furthermore, the clamping spring 200 has a contact leg 220 and a spring bow 230. The spring bow 230 connects the contact leg 220 to the clamping leg 210. In the exemplary embodiment of FIG figure 8 the clamping spring 200 is formed in one piece from spring steel. The contact leg 220 is supported on an extension/support 145 of the busbar 100 . If the clamping leg 210 of the clamping spring 200, as in figure 8 shown, deflected, the contact leg brings about a spring force F spring which acts on the conductor rail 100 in through the support of the contact leg 220 on the extension/support 145 .
  • the busbar 100 has a bottom section 130 for clamping the electrical conductor to the bottom section 130 of the busbar 100 by means of the clamping leg 210 of the clamping spring 200.
  • the busbar 100 also has a fastening section 140 for fastening the contact leg 220 of the clamping spring 200.
  • the tab 145 is part of the attachment portion.
  • the power rail 100 is for example formed in one piece from a metal (eg copper, copper alloy).
  • the busbar 100 forms a contact frame KR in that at least one busbar wall section 110, 120 of the busbar 100 connects the bottom section 130 to the fastening section 140 in one piece.
  • the busbar 100 is mounted in the housing 300. Because of necessary or unavoidable manufacturing tolerances, for example, the contact frame KR has a small amount of play within the housing 300 . If the clamping leg 210, as in figure 8 shown, deflected, the spring force F spring acts at the extreme point (in figure 8 top right) on the contact frame. The spring force F spring is directed transversely, almost 90° to the insertion direction ER of the conductor. This spring force F spring causes a torque M of the busbar 100 relative to the housing 300. The torque M acts around the reference point A, which in this case can also be referred to as the pivot point.
  • the housing 300 has a stop 392 .
  • the stop 392 is formed at a location within the housing 300 that is as far away from the reference point A as possible.
  • the reference point A is formed in the area of the fastening section 140 of the busbar 100 .
  • a free end 135 of the base section 130 for supporting the torque M rests on the stop 392 . Due to the support, a supporting force F Ab acts against a rotary movement on the free end 135 of the base section 130 .
  • the stop 392 is designed as an undercut 392 in the plastic of the housing 300 . In the embodiment of figure 8 the free end 135 dives into a depression in the undercut 392 .
  • the free end 135 of the bottom portion 130 is formed on a side of the bus bar 100 that faces the lever 400 .
  • a power chain is closed via the lever 400 and via the housing 300 over the shortest possible path.
  • At the free end 135 of the busbar 100 borders an increase 131 of the busbar 100.
  • the increase 131 forms together with the clamping leg 210 a Terminal point K for the electrical conductor.
  • the electrical conductor is guided in the insertion direction ER through a conductor routing channel LF in the base body 390 of the housing 300 through a number of guide walls 331 and the lever 400 to the terminal point K.
  • An embodiment of a spring connection terminal 1 is in figure 9 presented in a three-dimensional view.
  • An embodiment of a spring connection terminal 1 is in figure 10 presented as a sectioned three-dimensional view.
  • the spring connection terminal 1 has a busbar 100 and a clamping spring 200 and a lever 400 as an actuating element 400 .
  • the housing has a base body 390 and a cover 396 .
  • the base body 390 has an interior 341 for receiving the busbar 100 and the clamping spring 200 and the actuating element 400, wherein in the embodiment of figure 9 an operating handle 490 protrudes from the base body 390 for manual operation.
  • In the base body 390 are a number of guide walls 331 to form a conductor guide channel LF for guiding the electrical conductor (in the Figures 9 and 10 not shown) formed.
  • a guide wall 331 of the guide walls in the base body 390 is shown.
  • the base body 390 has a housing opening 342 for introducing the lever 400 and the clamping spring 200 and the busbar 100 into the base body 390 .
  • the cover 396 closes the housing opening 342 of the base body 390 so that the busbar 100 and the clamping spring 200 are encapsulated by the base body 390 and cover 396 so that they cannot be touched.
  • the cover 396 has a plug-in face 370 with a contact opening 375 for making electrical contact with the busbar 100 .
  • the mating face 370 is part of a plug connection and is designed to match a mating connector.
  • the base body 390 is designed such that through the housing opening 342, the actuating element 400 before or together with the clamping spring 200 and the busbar 100 can be introduced.
  • the clamping spring 200 is preassembled on the busbar 100, so that a unit made up of the busbar 100 and the clamping spring 200 together can be bulk goods and can be supplied automatically. This allows the lever 400 to first be automatically inserted into the base body 390 and then the busbar 100 and clamping spring 200 to be automatically inserted into the base body 390 before the housing opening 342 of the base body 390 is closed by the cover 396 .
  • FIG. 9 1 shows that base bodies 390 of a plurality of spring connection terminals 1 are integrally formed as one element.
  • covers 396 of a plurality of spring terminals 1 are integrally formed as one member. Due to the latching elements 363 of each spring connection terminal 1, greater forces can be absorbed in the housing. If, for example, an inserted conductor is pulled counter to the conductor insertion direction (pull-out force), several latching elements 363 hold the base body 390 and cover 396 together. In this way, the cover 396 can advantageously be formed from a polyamide (PA).
  • PA polyamide
  • the busbar 100 has a fork contact 160 inside the cover 396 .
  • the busbar 100 in the cover 396 can have a blade contact.
  • the busbar 100 is preferably formed in one piece with the fork contact 160 or the blade contact from a metal.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP19197583.8A 2018-12-04 2019-09-16 Federanschlussklemme Active EP3664223B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018106896.2U DE202018106896U1 (de) 2018-12-04 2018-12-04 Federanschlussklemme

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EP3664223B1 true EP3664223B1 (de) 2022-11-02

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US (1) US11043759B2 (pl)
EP (1) EP3664223B1 (pl)
CN (1) CN111276827B (pl)
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PL (1) PL3664223T3 (pl)

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DE102020119865A1 (de) * 2020-07-28 2022-02-03 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Leiteranschlussklemme
DE202020105715U1 (de) 2020-10-06 2022-01-10 Electro Terminal GmbH & Co. KG Klemme mit Lösehebel
US11699878B2 (en) * 2020-11-06 2023-07-11 Te Connectivity Solutions Gmbh Power connector having a wire release mechanism
JP7563298B2 (ja) 2021-03-12 2024-10-08 オムロン株式会社 端子接続装置
TWI812001B (zh) * 2021-03-12 2023-08-11 日商歐姆龍股份有限公司 端子連接裝置
DE102021112961A1 (de) * 2021-05-19 2022-11-24 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Leiteranschlussklemme mit wenigstens einem Federkraftklemmanschluss
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CN114421203A (zh) * 2022-03-09 2022-04-29 济南无线电十厂有限责任公司 一种信号连接器
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DE102013101409A1 (de) 2013-02-13 2014-08-14 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE102013101406A1 (de) 2013-02-13 2014-08-14 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
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DE102014119421A1 (de) 2014-12-22 2016-06-23 Wago Verwaltungsgesellschaft Mbh Verbindungsklemme und Verfahren zur Montage einer Verbindungsklemme
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US20200176897A1 (en) 2020-06-04
DE202018106896U1 (de) 2020-03-05
US11043759B2 (en) 2021-06-22
EP3664223A1 (de) 2020-06-10
CN111276827B (zh) 2024-06-21
DE102019125212A1 (de) 2020-06-04
CN111276827A (zh) 2020-06-12

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