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EP3125372B2 - Connection terminal - Google Patents

Connection terminal Download PDF

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Publication number
EP3125372B2
EP3125372B2 EP16187324.5A EP16187324A EP3125372B2 EP 3125372 B2 EP3125372 B2 EP 3125372B2 EP 16187324 A EP16187324 A EP 16187324A EP 3125372 B2 EP3125372 B2 EP 3125372B2
Authority
EP
European Patent Office
Prior art keywords
clamping
spring
conductor insertion
connection terminal
operating lever
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
EP16187324.5A
Other languages
German (de)
French (fr)
Other versions
EP3125372A1 (en
EP3125372B1 (en
Inventor
Hans-Josef Köllmann
Michael Meyer
Wolfgang Gerberding
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47429791&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3125372(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wago Verwaltungs GmbH filed Critical Wago Verwaltungs GmbH
Priority to PL16187324.5T priority Critical patent/PL3125372T5/en
Publication of EP3125372A1 publication Critical patent/EP3125372A1/en
Application granted granted Critical
Publication of EP3125372B1 publication Critical patent/EP3125372B1/en
Publication of EP3125372B2 publication Critical patent/EP3125372B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/62977Pivoting levers actuating linearly camming means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42Securing in a demountable manner
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627Snap or like fastening
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/48Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/483Pivoting arrangements, e.g. lever pushing on the spring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00Four or more poles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/48Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185Clamped 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
    • H01R4/4819Clamped 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
    • H01R4/4821Single-blade spring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/48Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846Busbar details
    • H01R4/485Single busbar common to multiple springs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural 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
    • H01R9/22Bases, e.g. strip, block, panel
    • H01R9/24Terminal blocks

Definitions

  • a connection terminal with a spring-loaded terminal connection and an actuating lever is known.
  • the actuating lever is pivotally mounted with its axis of rotation behind the terminal point below the clamping spring, as seen in the conductor insertion direction.
  • An actuating tab is bent at the free end of the clamping leg, which works together with an actuating finger of the actuating lever to open the spring-loaded terminal connection.
  • DE 19 84 159 U discloses a clamping device for connecting electrical cables with a U-shaped sheet metal body that has a recess for a lever and a clamping spring.
  • the lever is arranged behind the electrical conductor to be clamped in the conductor insertion direction and consists of a U-shaped sheet metal body and a lever arm that is installed in a recess in the sheet metal body.
  • EP 1 605 547 A1 discloses a connection terminal with a double spring. To actuate each spring element, an actuating lever is pivotably mounted above a busbar section.
  • EP 1 641 079 A1 shows a connection terminal in which a pivoting operating lever is built into the insulating housing above the conductor insertion opening and the electrical conductor to be connected.
  • EN 20 2009 002 240 U1 describes an electrical connection terminal with an operating tool that is pivotably mounted in the insulating housing far outside the electrical conductor to be connected.
  • DE 29 22 477 A1 discloses a terminal block with a busbar section that has a roof-shaped contact surface for guiding an electrical conductor.
  • An actuating lever is pivotably mounted on the busbar section next to an adjoining surface.
  • EP 0 821 433 A1 discloses a connection terminal with a rod-shaped actuating lever which is pivotably arranged in the insulating housing between the inserted electrical conductor and the clamping leg of the clamping spring.
  • JP 2004 319394 A discloses a connection terminal with an actuating lever, each of which has an actuating plunger for a clamping spring arranged to the right and left of a pivot bearing arm. An electrical conductor will then pass laterally past one of these actuating arms to the clamping point, with a free space between the conductor insertion opening and the clamping point.
  • EP 1 081 790 A1 shows a spring terminal for connecting electrical conductors.
  • the electrical conductor is guided along a side wall of a busbar cage to a terminal point.
  • An operating lever is pivotably mounted above the busbar section.
  • connection terminal that is as small as possible with a spring-loaded terminal connection and actuating lever, which is also improved with regard to the force effect of the actuating lever on the connection terminal and the conductor guide.
  • connection terminal with the features of claim 1.
  • the actuating lever is arranged so as to be pivotable in an associated conductor insertion opening or the extension of the conductor insertion opening that continues in the conductor insertion direction to the clamping point, with the rotation axis of the actuating lever being arranged transversely to the conductor insertion direction in the associated conductor insertion opening or the extension of the conductor insertion opening that continues in the conductor insertion direction to the clamping point.
  • the actuating lever has two opposing lateral boundary walls for guiding an electrical conductor that is inserted into a conductor insertion opening in the conductor insertion direction to an associated clamping point.
  • the rotation of the operating lever takes place in the area of the terminal point or in the space in front of it.
  • This has the advantage that the operating lever can be accommodated in the insulating housing in a very space-saving manner and at the same time serves as the wall of the conductor entry channel for guiding an electrical conductor.
  • the operating lever thus replaces part of the guide wall for an electrical conductor in the conductor entry opening.
  • the at least one actuating lever is arranged adjacent to an associated busbar section forming the clamping point in such a way that the actuating lever is arranged in the space between the plane spanned by the busbar section and the plane parallel to this, defined by the clamping edge of the clamping spring that is fully opened when the actuating lever is pivoted.
  • the actuating lever is preferably positioned below the busbar section in the conductor insertion direction slightly in front of or directly below the clamping point.
  • the busbar in the section that forms the clamping point defines a first plane, regardless of any elevations for a contact edge, to which a second imaginary plane is spanned.
  • This second plane is spaced from the plane of the busbar section in such a way that the clamping edge of an opened clamping spring touches this plane.
  • the space between the planes forms the preferred space in which the actuating lever should be in order to provide an extremely compact, mechanically stable connection terminal.
  • At least one actuating lever is inserted into a cutout of the busbar piece that is adjacent to a clamping section of the associated busbar piece.
  • the actuating lever then uses an actuating section to actuate an actuating tab that is arranged next to the clamping section of the clamping spring, viewed across the width of an associated clamping spring, in order to open the clamping spring.
  • the cutout on a side edge of the busbar piece makes it possible to accommodate the actuating lever in a space-saving manner.
  • an actuating tab Viewed across the width of the busbar piece and the associated clamping spring, an actuating tab is then exposed on the clamping section of the clamping spring below this cutout, which is then acted upon by the actuating section of the actuating lever when the actuating lever is pivoted in order to open the clamping spring.
  • the electrical contacting of an electrical conductor then takes place adjacent to this cutout of the busbar piece or, viewed across the width, adjacent to the actuating tab by the clamping section of the clamping spring and a preferably forward contact edge of the busbar piece.
  • the actuating tab is preferably freed from the clamping spring, e.g. by punching or cutting, and protrudes obliquely from the clamping section of the clamping spring.
  • the at least one clamping spring is preferably designed as a U-shaped clamping spring, the free clamping section of which points obliquely in the direction of an associated busbar section.
  • a U-shaped clamping spring With the help of such a U-shaped clamping spring, a direct clamping of an electrical conductor is possible without first opening the clamping spring with the associated operating lever. This is also known as direct plug-in technology.
  • the at least one actuating lever has an actuating arm that extends on the underside or the top of the connection terminal in the conductor insertion direction or in the opposite direction.
  • the connection terminal that are as compact as possible, combinations are particularly conceivable in which the actuating arms of the actuating levers extend alternately in the conductor insertion direction and in the opposite direction, or alternately extend on the underside and top in the same directions or alternately in opposite directions.
  • Figure 1 shows a connection terminal 1 with an insulating housing 2, in which at least one pair of opposing spring clamp connections 3a, 3b are installed.
  • the spring clamp connections 3a, 3b each have a U-shaped clamping spring 4 and a common busbar section 5.
  • Each spring-loaded terminal connection 3a, 3b provides a clamping point by means of a clamping section 6 formed at the free, movable end of the clamping spring and in particular by means of the clamping edge at the free end of the clamping spring 4 and at the busbar section 5a opposite the clamping section 6.
  • an associated conductor insertion opening 7 is made in the insulating housing for each spring-loaded terminal connection 3a, 3b.
  • the conductor insertion opening 7 has a diameter that is adapted to the largest possible permissible cross-section, including the insulating sheath, of an electrical conductor.
  • each spring-force clamp connection 3a, 3b has an actuating lever 8 with an actuating section 9 and an adjacent actuating arm 10 extending in a longitudinal direction.
  • the left operating lever 8a is shown in the closed position and the right operating lever 8b is shown in the open position of the clamping spring. It can be seen that the operating levers 8a, 8b are pivoted by approximately 90° from the closed position to the open position. It is clear that the operating lever 8a with its operating section 9 and in particular the axis of rotation D about which the operating lever 8a, 8b is pivotably mounted in the insulating housing 2 of the connection terminal, is arranged in the space of the associated conductor entry opening 7 or in the conductor entry direction L to the clamping point in the further extension of the conductor entry opening 7. However, the axis of rotation D is still positioned in front of the clamping point when viewed in the conductor entry direction L and is in no way behind the clamping section 6 of the clamping spring 4 when viewed in the conductor entry direction L.
  • an actuating tab 11 is exposed next to the clamping section 6 and protrudes obliquely from the clamping section 6.
  • An eccentric-like, protruding contour of the actuating section 9 of the associated actuating lever 8a, 8b acts on this actuating tab 11 at least partially during the movement when the actuating lever 8a, 8b is pivoted from the closed position (left actuating lever 8a) to the open position (right actuating lever 8b). In this way, the clamping section 6 of the clamping spring 4 is moved away from the adjacent busbar section 5a forming the clamping point in order to open the clamping spring 4.
  • actuating levers 8a, 8b are accommodated in recesses in the insulating housing 2 for receiving a part of the actuating arm 10.
  • the actuating arm 10 protrudes in the closed position (left actuating arm 8a in Figure 1 ) opposite to the conductor insertion direction L at the respective front side of the associated conductor insertion opening 7 from the insulating housing 2.
  • an embodiment is also conceivable in which the actuating arm 10 is rotated by 180° and points in the conductor insertion direction L in the closed position.
  • This is particularly conceivable for a connection terminal in which only one spring-loaded terminal connection is present over the length of the connection terminal shown in the conductor insertion direction L and several spring-loaded terminal connections in the direction of view of the Figure 1 are arranged distributed across the width.
  • connection terminal 1 In the connection terminal 1 shown, it is conceivable that not only one such pair of spring-loaded terminal connections 3a, 3b with associated actuating levers 8a, 8b is provided, but rather several such arrangements are arranged next to one another across the width of the connection terminal as viewed in the direction of view.
  • a bridge insertion opening 12 is provided on the top of the insulating housing, which is open to the top of the insulating housing 2.
  • the bridge insertion opening 12 opens into a bridge terminal connection formed by a material tab 13 of the busbar 5 and a downwardly bent end 14 of a clamping spring 4.
  • busbars 5 arranged next to one another are electrically connected to one another with associated spring-loaded terminals 3a, 3b.
  • Such bridges have at least two parallel comb teeth, which are electrically connected to one another via a web running transversely thereto. At least this transverse web can be surrounded by an insulating material sheath in a manner known per se.
  • the insulating housing 2 is constructed in two parts and has a lower part 2a onto which an upper part 2b is snapped.
  • locking lugs 16 of the lower part 2a engage in associated locking openings 17 of the upper part 2b.
  • Figure 2 shows a perspective view of a spring-loaded clamp connection 3, which is formed from a U-shaped clamping spring 4 and a busbar section 5a.
  • the busbar section 5a forming the clamping point has a clamping projection 18 at its free end, by means of which a defined contact surface for an electrical conductor is created with a reduced area. The clamping force of the clamping spring 4 is then concentrated via the electrical conductor onto this clamping surface defined by the clamping projection 18, so that the surface pressure is increased compared to a planar contact surface.
  • the free end of the busbar section 5a forming the clamping point is angled upwards in order to provide a guide for an electrical conductor to the clamping edge 18.
  • the busbar section 5a forming the clamping point has a cutout 19 in the form of a depression laterally adjacent to the clamping edge 18, into which the actuating section 9 of the actuating lever 8 is inserted.
  • the actuating tab 11 is free from the clamping section 6 of the clamping spring 4 and extends in the direction of the conductor insertion direction L.
  • the side wall of the actuating section 9 of the actuating lever 8 forms a lateral boundary wall for an electrical conductor introduced to the clamping point, which is used to guide the electrical conductor to the clamping point.
  • the busbar 5 is folded over laterally in such a way that a support surface 20 for supporting a contact leg 21 of the clamping spring 4 is created at a distance and parallel to the busbar section 5a forming the clamping point.
  • Figure 3 omits a perspective view of the spring clamp connection 3 with actuating lever 8 Figure 2 from the other side.
  • the pivot pin 22 is circular and thus defines the axis of rotation D around which the actuating lever 8 is rotatably accommodated in the insulating housing 2.
  • the pivot pin 22 is provided to be inserted into a corresponding opening or recess (not shown) in the insulating housing of the connection terminal 1.
  • the actuating lever 8 is thus rotatably mounted on one side in the insulating housing 2 by the pivot pin 22 serving as a bearing.
  • the actuating lever 8 is guided laterally only in sections through insulating material walls 2 and/or the busbar section 5a of the insulating material housing 2 without specific pivot bearing.
  • clamping spring 4 is formed in the form of a U-shaped clamping spring with a contact section 21, an adjoining spring arch 23 and the adjoining clamping section 6 extending approximately in the direction of the contact leg 21.
  • Figure 4 shows a variant of the connection terminal 1 in a reduced side sectional view. It is clear that the left operating lever 8a for the left spring clamp connection protrudes upwards from the top of the insulating housing.
  • the right operating lever 8b for the right spring clamp connection 3b is arranged in a mirror image such that it protrudes from the bottom of the insulating housing 2.
  • connection terminals in which there is only one spring clamp connection over the length of the connection terminal and not, as in the embodiments according to Figure 1 and 4 two spring clamp connections 3a, 3b arranged one behind the other are provided.
  • several such spring clamp connections 3a are advantageously provided across the width, ie in the direction of view of the Figure 4 arranged one behind the other.
  • the actuating levers 8 protrude alternately across the width at the top and bottom.
  • a variant is also conceivable in which the actuating arms 10 protrude alternately from the rear or front side on the one hand in the conductor insertion direction and, in the case of the adjacent spring-loaded terminal connection 3, opposite to the conductor insertion direction L.
  • FIG. 5 an embodiment of a multi-row connection terminal 1 in the form of a box terminal.
  • This connection terminal 1 has several adjacent lying and electrically connected spring-loaded terminal connections 3, of which the left one is visible.
  • a clamping spring 4 is attached to a busbar section 5.
  • the clamping spring 4 is in turn bent in a U-shape so that a clamping section 6 with a clamping cap at the free end protrudes against the busbar section 5a to form a clamping point.
  • the clamping edge lies on the busbar section 5a.
  • the clamping spring 4 has actuating tabs 11 on both sides of the clamping section 6.
  • connection terminal 1 An embodiment of the connection terminal 1 is also conceivable in which two spring clamp connections 3 lying next to each other are electrically connected to each other and two or three pairs of such electrically connected spring clamp connections 3 are provided. This means that two conductors for a single-phase power supply connection with the connections L (phase), N (neutral conductor) and PE (earth) can each be connected to each other, so that a mains connection terminal is formed.
  • actuating levers 8 are arranged next to the clamping points, i.e. next to the busbar section 5a and the clamping section 6 immediately behind the end of the conductor insertion opening 7 formed in the insulating housing 2.
  • the actuating sections 9 of the actuating levers 8 form a continuation of the wall of the respective conductor insertion opening 7 in order to guide an electrical conductor to the clamping point.
  • Each actuating section 9 interacts with an associated actuating tab 11 of the clamping spring 4.
  • the axis of rotation of the actuating levers 8 is located, as in the previously described embodiment, below the busbar section 5 in the area of the clamping point. The axis of rotation extends transversely to the conductor insertion direction, which is predetermined by the extension direction of the conductor insertion opening 7.
  • the actuating arms 10 extend opposite to the conductor insertion direction L and are arranged on the top of the insulating housing 2.
  • the free ends of the actuating arms 10 are located in the area of the front.
  • the free ends of the actuating arms 10 are spaced from the boundary walls of the conductor insertion opening 7 or the insulating housing 2 in such a way that they can be grasped and pivoted by hand.
  • Figure 6 shows a perspective view of such an actuating lever 8 from the front.
  • opening 24 in the middle, central area, into which a guide wall of the insulating housing dips in order to guide the actuating lever 8 in the insulating housing 2 so that it cannot tip over.
  • the opening 24 is surrounded in the upper area by a circumferential collar. This serves to reinforce and stiffen the actuating lever 8.
  • the actuating lever has a pivot pin 22 at its two outer lateral ends, which serves as a bearing.
  • the pivot pins 22 are accommodated in corresponding openings in the insulating housing 2.
  • each spring-loaded terminal connection 3 two actuating sections 9 are provided opposite one another, so that an electrical conductor is guided to the terminal point on both sides of these actuating sections 9 after the electrical conductor emerges from the conductor insertion opening 7, which is delimited on the sides all the way around, towards the terminal point.
  • the opposing actuating sections 9 thus serve as a continuation of the conductor insertion opening 7.
  • the actuating levers 8 can have locking grooves 26 or projecting locking pins in order to lock the actuating lever to the insulating housing 2 in the closed state and to prevent unintentional opening of the actuating levers 8 with reduced force.
  • FIG. 7 leaves the operating lever Figure 6 in the rear view.
  • the recess 24 in the form of a slot in the center of the operating lever 8 is clearly visible.
  • Figure 8 omits a perspective view of the operating lever Figure 6 and 7 from the underside. It is clear that the opening 24 in the lower area is closed again. It is also clear that the walls that form the actuating sections 9 merge into the actuating arm 10 via webs 27 on the underside of the actuating arm 10 in order to stiffen the actuating arm 10 and prevent it from rebounding relative to the actuating sections 9.
  • the actuating sections 9 have a contour that is coordinated with the axis of rotation D in such a way that the opened actuating lever 8 remains self-locking in an over-center position.
  • a guide surface 22a for bearing is provided in the central area.
  • Figure 9 shows a further embodiment of a connection terminal 1 with several spring-loaded terminal connections 3 arranged one behind the other in the viewing direction and associated actuating levers 8.
  • the actuating lever 8 is shown upwards in the closed position, in which the clamping spring 4 of the spring-loaded terminal connection 3 is closed.
  • Figure 10 shows the same operating lever 8 in the open position, in which the spring-loaded terminal connection 3 is open.
  • the actuating lever 8 with its actuating section 9 is arranged directly behind the conductor insertion opening 7, again to the side next to the busbar section 5 or the busbar section 5a forming the terminal point.
  • the axis of rotation D is in the conductor insertion opening 7 or directly behind it and, viewed in the conductor insertion direction L, just before the terminal point and below the busbar section 5a forming the terminal point.
  • the actuating arms 10 of the actuating lever 8 are directed away from the conductor insertion openings 7 in the direction of the rear of the connection terminal 1 in the conductor insertion direction L.
  • connection terminal 1 This enables a very compact design of the connection terminal 1 with simple and reliable operation of the spring-loaded terminal connection 3.
  • a test opening 28 is provided on the lower part of the rear side of the insulating housing 2, which is open towards the clamping spring 4. In this way, the voltage potential present at the spring-loaded terminal connection can be measured using a test pin inserted into the test opening 28.
  • Figure 11 omits a side view of the operating lever 8 of the terminal 1 Figure 9 and 10 It is clear that the actuating arm 10 initially protrudes from the actuating section 9 at an angle to the rear and then in the conductor insertion direction L. The crosspiece 10c at the lower free end of the actuating arm 10 is also visible.
  • the actuating section 9 has a nose 30 which is adapted to the position of the rotation axis in such a way that the opened actuating lever 8 remains self-locking in an over-center position.
  • Figure 12 omits a view of the operating arm Figure 11 from below.
  • the structure of the actuating arm 10 with two arm sections 10a, 10b and the crosspiece 10c connecting the arm sections 10a, 10b at the free end becomes clear.
  • pivot pins 22 protrude laterally from the outer sides of the actuating sections 9 and are mounted in corresponding recesses in the insulating housing 2 of the connection terminal 1.

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)
  • Clamps And Clips (AREA)
  • Fixing For Electrophotography (AREA)
  • Ceramic Capacitors (AREA)
  • Wire Bonding (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Description

Die Erfindung betrifft eine Anschlussklemme mit:

  • mindestens einem Stromschienenstück und
  • mindestens einer Klemmfeder,
wobei die Anschlussklemme mindestens einen aus einer Klemmfeder und einem Abschnitt eines Stromschienenstücks gebildeten Federkraftklemmanschluss hat, um einen elektrischen Leiter zwischen einem Klemmabschnitt der Klemmfeder und dem Stromschienenstückabschnitt an einer Klemmstelle anzuklemmen,
  • und mit einem Isolierstoffgehäuse, das mindestens eine zu einem zugeordneten Federkraftklemmanschluss führende und sich in eine Leitereinführungsrichtung erstreckende Leitereinführungsöffnung hat,
  • und mit mindestens einem schwenkbar gelagerten Betätigungshebel, der über einen Betätigungsabschnitt mit mindestens einer Klemmfeder zum Öffnen mindestens eines zugeordneten Federkraftklemmanschlusses bei Verschwenken des Betätigungshebels zusammenwirkend ausgebildet ist und eine sich an dem Betätigungsabschnitt anschließenden Betätigungsarm hat.
The invention relates to a connection terminal with:
  • at least one busbar section and
  • at least one clamping spring,
wherein the connection terminal has at least one spring-loaded clamping connection formed from a clamping spring and a section of a busbar piece in order to clamp an electrical conductor between a clamping section of the clamping spring and the busbar piece section at a clamping point,
  • and with an insulating housing which has at least one conductor insertion opening leading to an associated spring-cage terminal connection and extending in a conductor insertion direction,
  • and with at least one pivotably mounted actuating lever, which is designed to cooperate via an actuating section with at least one clamping spring for opening at least one associated spring force clamping connection when the actuating lever is pivoted and has an actuating arm adjoining the actuating section.

DE 299 15 515 U1 offenbart eine Federklemme zum Anschließen elektrischer Leiter mit einem Isolierstoffgehäuse, das eine Anschlussklammer mit einer mit einem Stromschienenstück zusammenwirkenden Klemmfeder hat. In das Isolierstoffgehäuse ist ein Betätigungselement in Form eines Exenterhebels integriert, der drehbar im Isolierstoffgehäuse gelagert ist. Die Drehachse des Extenderhebels liegt im Wesentlichen senkrecht über der Klemmstelle. DE 299 15 515 U1 discloses a spring terminal for connecting electrical conductors with an insulating housing that has a connection clamp with a clamping spring that interacts with a busbar piece. An actuating element in the form of an eccentric lever is integrated into the insulating housing and is rotatably mounted in the insulating housing. The rotation axis of the extender lever is essentially vertical above the clamping point.

Aus DE 87 04 494 U1 ist eine Anschlussklemme mit einem Federkraftklemmanschluss und einem Betätigungshebel bekannt. Der Betätigungshebel ist mit seiner Drehachse in Leitereinsteckrichtung gesehen hinter der Klemmstelle unterhalb der Klemmfeder schwenkbar gelagert. Am freien Klemmschenkelende ist eine Betätigungslasche abgebogen, die mit einem Betätigungsfinger des Betätigungshebels zum Öffnen des Federkraftklemmanschlusses zusammenwirkt.Out of DE 87 04 494 U1 A connection terminal with a spring-loaded terminal connection and an actuating lever is known. The actuating lever is pivotally mounted with its axis of rotation behind the terminal point below the clamping spring, as seen in the conductor insertion direction. An actuating tab is bent at the free end of the clamping leg, which works together with an actuating finger of the actuating lever to open the spring-loaded terminal connection.

DE 19 84 159 U offenbart eine Klemmvorrichtung für den Anschluss elektrischer Leitungen mit einem U-förmig gebogenen Blechkörper, der eine Aussparung für einen Hebel sowie eine Klemmfeder hat. Der Hebel ist in Leitereinsteckrichtung hinter dem anzuklemmenden elektrischen Leiter angeordnet und besteht aus einem U-förmig gebogenen Blechkörper und einem Hebelarm, der in eine Aussparung des Blechkörpers eingebaut ist. DE 19 84 159 U discloses a clamping device for connecting electrical cables with a U-shaped sheet metal body that has a recess for a lever and a clamping spring. The lever is arranged behind the electrical conductor to be clamped in the conductor insertion direction and consists of a U-shaped sheet metal body and a lever arm that is installed in a recess in the sheet metal body.

EP 1 605 547 A1 offenbart eine Anschlussklemme mit einer Doppelfeder. Zur Betätigung jeweils eines Federelementes ist ein Betätigungshebel schwenkbar oberhalb eines Stromschienenstücks gelagert. EP 1 605 547 A1 discloses a connection terminal with a double spring. To actuate each spring element, an actuating lever is pivotably mounted above a busbar section.

EP 1 641 079 A1 zeigt eine Anschlussklemme, bei der oberhalb der Leitereinführungsöffnung und des anzuklemmenden elektrischen Leiters ein schwenkbarer Betätigungshebel in das Isolierstoffgehäuse eingebaut ist. EP 1 641 079 A1 shows a connection terminal in which a pivoting operating lever is built into the insulating housing above the conductor insertion opening and the electrical conductor to be connected.

DE 20 2009 002 240 U1 beschreibt eine elektrische Anschlussklemme mit einem weit außerhalb des anzuklemmenden elektrischen Leiters schwenkbar im Isolierstoffgehäuse gelagerten Betätigungswerkzeug. EN 20 2009 002 240 U1 describes an electrical connection terminal with an operating tool that is pivotably mounted in the insulating housing far outside the electrical conductor to be connected.

DE 29 22 477 A1 offenbart eine Reihenklemme mit einem Stromschienenstück, das eine dachförmig ausgebildete Kontaktfläche zur Führung eines elektrischen Leiters hat. Seitlich neben einer sich daran anschließenden Fläche ist ein Betätigungshebel schwenkbar auf dem Stromschienenstück aufgelagert. DE 29 22 477 A1 discloses a terminal block with a busbar section that has a roof-shaped contact surface for guiding an electrical conductor. An actuating lever is pivotably mounted on the busbar section next to an adjoining surface.

EP 0 821 433 A1 offenbart eine Anschlussklemme mit einem stabförmigen Betätigungshebel, der schwenkbar in dem Isolierstoffgehäuse zwischen dem eingesteckten elektrischen Leiter und dem Klemmschenkel der Klemmfeder angeordnet ist. EP 0 821 433 A1 discloses a connection terminal with a rod-shaped actuating lever which is pivotably arranged in the insulating housing between the inserted electrical conductor and the clamping leg of the clamping spring.

JP 2004 319394 A offenbart eine Anschlussklemme mit einem Betätigungshebel, der jeweils einen Betätigungsstößel für eine rechts und links von einem Schwenklagerarm angeordnete Klemmfeder hat. Ein elektrischer Leiter wird dann jeweils an einem dieser Betätigungsarme seitlich vorbei zur Klemmstelle gelangen, wobei zwischen der Leitereinführungsöffnung und der Klemmstelle ein Freiraum vorhanden ist. JP 2004 319394 A discloses a connection terminal with an actuating lever, each of which has an actuating plunger for a clamping spring arranged to the right and left of a pivot bearing arm. An electrical conductor will then pass laterally past one of these actuating arms to the clamping point, with a free space between the conductor insertion opening and the clamping point.

EP 1 081 790 A1 zeigt eine Federklemme zum Anschließen elektrischer Leiter. Der elektrische Leiter wird an einer Seitenwand eines Stromschienenkäfigs entlang zu einer Klemmstelle geführt. Ein Betätigungshebel ist schwenkbar oberhalb des Stromschienenstücks gelagert. EP 1 081 790 A1 shows a spring terminal for connecting electrical conductors. The electrical conductor is guided along a side wall of a busbar cage to a terminal point. An operating lever is pivotably mounted above the busbar section.

Ausgehend hiervon ist es Aufgabe der vorliegenden Erfindung, eine verbesserte, möglichst kleinbauende Anschlussklemme mit einem Federkraftklemmanschluss und Betätigungshebel zu schaffen, der auch im Hinblick auf die Kraftwirkung des Betätigungshebels auf die Anschlussklemme sowie die Leiterführung verbessert ist.Based on this, it is the object of the present invention to provide an improved connection terminal that is as small as possible with a spring-loaded terminal connection and actuating lever, which is also improved with regard to the force effect of the actuating lever on the connection terminal and the conductor guide.

Die Aufgabe wird durch die Anschlussklemme mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved by the connection terminal with the features of claim 1.

Bei einer gattungsgemäßen Anschlussklemme der eingangs genannten Art ist der Betätigungshebels in einer zugeordneten Leitereinführungsöffnung oder der in Leitereinführungsrichtung zur Klemmstelle weiterführenden Verlängerung der Leitereinführungsöffnung schwenkbar angeordnet, wobei die Drehachse des Betätigungshebels quer zur Leitereinführungsrichtung in der zugeordneten Leitereinführungsöffnung oder der in Leitereinführungsrichtung zur Klemmstelle weiterführenden Verlängerung der Leitereinführungsöffnung angeordnet ist. Der Betätigungshebel hat zwei einander gegenüberliegende seitliche Begrenzungswände zur Führung eines in Leitereinführungsrichtung in eine Leitereinführungsöffnung eingeführten elektrischen Leiters zu einer zugeordneten Klemmstelle.In a generic connection terminal of the type mentioned at the beginning, the actuating lever is arranged so as to be pivotable in an associated conductor insertion opening or the extension of the conductor insertion opening that continues in the conductor insertion direction to the clamping point, with the rotation axis of the actuating lever being arranged transversely to the conductor insertion direction in the associated conductor insertion opening or the extension of the conductor insertion opening that continues in the conductor insertion direction to the clamping point. The actuating lever has two opposing lateral boundary walls for guiding an electrical conductor that is inserted into a conductor insertion opening in the conductor insertion direction to an associated clamping point.

Durch die schwenkbare Anordnung des Betätigungshebels mit seiner Drehachse in der Leitereinführungsöffnung oder in der Flucht der Leitereinführungsöffnung zur Klemmstelle hin erfolgt die Drehung des Betätigungshebels im Bereich der Klemmstelle oder im davor liegenden Raum. Dies hat den Vorteil, dass der Betätigungshebel überaus platzsparend im Isolierstoffgehäuse aufgenommen werden kann und dabei gleichzeitig als Wand des Leitereinführungskanals zur Führung eines elektrischen Leiters dient. Damit ersetzt der Betätigungshebel einen Teil der Führungswand für einen elektrischen Leiter der Leitereinführungsöffnung.Due to the pivoting arrangement of the operating lever with its axis of rotation in the conductor entry opening or in alignment of the conductor entry opening with the terminal point, the rotation of the operating lever takes place in the area of the terminal point or in the space in front of it. This has the advantage that the operating lever can be accommodated in the insulating housing in a very space-saving manner and at the same time serves as the wall of the conductor entry channel for guiding an electrical conductor. The operating lever thus replaces part of the guide wall for an electrical conductor in the conductor entry opening.

Besonders vorteilhaft ist es, wenn der mindestens eine Betätigungshebel angrenzend an einen zugeordneten, die Klemmstelle bildenden Stromschienenabschnitts so angeordnet ist, dass der Betätigungshebel im Raum zwischen der von dem Stromschienenstückabschnitt aufgespannten Ebene und der hierzu parallelen, durch die Klemmkante der beim Umschwenken des Betätigungshebels vollständig geöffneten Klemmfeder definierten Ebene angeordnet ist. Dabei ist der Betätigungshebel vorzugsweise unterhalb des Stromschienenstückabschnitts in Leitereinführungsrichtung etwas vor oder direkt unterhalb der Klemmstelle positioniert. Die Stromschiene im Abschnitt, der die Klemmstelle bildet, definiert unbeachtlich etwaiger Erhebungen für eine Kontaktkante eine erste Ebene, zu der eine zweite gedachte Ebene aufgespannt wird. Diese zweite Ebene ist derart von der Ebene des Stromschienenstücks beabstandet, dass die Klemmkante einer geöffneten Klemmfeder diese Ebene berührt. Der Zwischenraum zwischen den Ebenen bildet den bevorzugten Raum, in dem der Betätigungshebel sein sollte, um eine überaus kompakt bauende, mechanisch stabile Anschlussklemme bereitzustellen.It is particularly advantageous if the at least one actuating lever is arranged adjacent to an associated busbar section forming the clamping point in such a way that the actuating lever is arranged in the space between the plane spanned by the busbar section and the plane parallel to this, defined by the clamping edge of the clamping spring that is fully opened when the actuating lever is pivoted. The actuating lever is preferably positioned below the busbar section in the conductor insertion direction slightly in front of or directly below the clamping point. The busbar in the section that forms the clamping point defines a first plane, regardless of any elevations for a contact edge, to which a second imaginary plane is spanned. This second plane is spaced from the plane of the busbar section in such a way that the clamping edge of an opened clamping spring touches this plane. The space between the planes forms the preferred space in which the actuating lever should be in order to provide an extremely compact, mechanically stable connection terminal.

Besonders vorteilhaft ist es, wenn mindestens ein Betätigungshebel in einen angrenzend an einen Klemmabschnitt des zugeordneten Stromschienenstücks eingebrachten Ausschnitt des Stromschienenstücks eintaucht. Der Betätigungshebel beaufschlagt dann mit einem Betätigungsabschnitt einen über die Breite einer zugeordneten Klemmfeder gesehen neben dem Klemmabschnitt der Klemmfeder angeordnete Betätigungslasche, um die Klemmfeder zu öffnen. Mit Hilfe des Ausschnitts an einer Seitenkante des Stromschienenstücks gelingt es, den Betätigungshebel platzsparend aufzunehmen. Über die Breite des Stromschienenstücks und der zugeordneten Klemmfeder gesehen, ist dann an dem Klemmabschnitt der Klemmfeder unterhalb dieses Ausschnitts eine Betätigungslasche herausgestellt, die dann von dem Betätigungsabschnitt des Betätigungshebels bei Verschwenken des Betätigungshebels beaufschlagt wird, um die Klemmfeder zu öffnen. Die elektrische Kontaktierung eines elektrischen Leiters erfolgt dann angrenzend an diesen Ausschnitt des Stromschienenstücks bzw. über die Breite gesehen angrenzend an die Betätigungslasche durch den Klemmabschnitt der Klemmfeder und eine vorzugsweise vorgestellte Kontaktkante des Stromschienenstücks.It is particularly advantageous if at least one actuating lever is inserted into a cutout of the busbar piece that is adjacent to a clamping section of the associated busbar piece. The actuating lever then uses an actuating section to actuate an actuating tab that is arranged next to the clamping section of the clamping spring, viewed across the width of an associated clamping spring, in order to open the clamping spring. The cutout on a side edge of the busbar piece makes it possible to accommodate the actuating lever in a space-saving manner. Viewed across the width of the busbar piece and the associated clamping spring, an actuating tab is then exposed on the clamping section of the clamping spring below this cutout, which is then acted upon by the actuating section of the actuating lever when the actuating lever is pivoted in order to open the clamping spring. The electrical contacting of an electrical conductor then takes place adjacent to this cutout of the busbar piece or, viewed across the width, adjacent to the actuating tab by the clamping section of the clamping spring and a preferably forward contact edge of the busbar piece.

Die Betätigungslasche ist vorzugsweise von der Klemmfeder freigestellt, z.B. durch Freistanzen oder Freischneiden, und ragt schräg von dem Klemmabschnitt der Klemmfeder ab.The actuating tab is preferably freed from the clamping spring, e.g. by punching or cutting, and protrudes obliquely from the clamping section of the clamping spring.

Die mindestens eine Klemmfeder ist bevorzugt als eine U-förmig gebogene Klemmfeder ausgestaltet, deren freier Klemmabschnitt schräg in Richtung eines zugeordneten Stromschienenstücks weist. Mit Hilfe einer solchen U-förmig gebogenen Klemmfeder ist ein direktes Einklemmen eines elektrischen Leiters ohne vorheriges Öffnen der Klemmfeder mit dem zugeordneten Betätigungshebel möglich. dies ist auch als Direktstecktechnik bekannt.The at least one clamping spring is preferably designed as a U-shaped clamping spring, the free clamping section of which points obliquely in the direction of an associated busbar section. With the help of such a U-shaped clamping spring, a direct clamping of an electrical conductor is possible without first opening the clamping spring with the associated operating lever. This is also known as direct plug-in technology.

Denkbar ist aber auch, dass der mindestens eine Betätigungshebel einen Betätigungsarm hat, der sich an der Unterseite oder der Oberseite der Anschlussklemme in Leitereinsteckrichtung oder entgegengesetzt hierzu erstreckt. Für möglichst kompakt bauende Varianten der Anschlussklemme sind insbesondere Kombinationen denkbar, bei denen sich Betätigungsarme der Betätigungshebel alternierend in Leitereinsteckrichtung und entgegengesetzt hierzu erstrecken bzw. alternierend auf der Unterseite und Oberseite in gleiche Richtungen oder in alternierend in entgegengesetzte Richtungen erstrecken.However, it is also conceivable that the at least one actuating lever has an actuating arm that extends on the underside or the top of the connection terminal in the conductor insertion direction or in the opposite direction. For variants of the connection terminal that are as compact as possible, combinations are particularly conceivable in which the actuating arms of the actuating levers extend alternately in the conductor insertion direction and in the opposite direction, or alternately extend on the underside and top in the same directions or alternately in opposite directions.

Diese Ausführungsformen sind insbesondere abhängig von der konkreten Kombination von Federkraftanschlussklemmen und deren räumliche Lage zueinander.These embodiments depend in particular on the specific combination of spring-cage connection terminals and their spatial position relative to one another.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen mit den beigefügten Zeichnungen näher erläutert, wobei die Figuren 1 bis 4 nicht unter den Anspruch 1 fallen. Es zeigen:

Figur 1 -
Seiten-Schnittansicht einer Doppel-Anschlussklemme mit zwei Federkraftanschlüssen und zugeordneten Betätigungshebeln;
Figur 2 -
perspektivische Ansicht eines Federkraftklemmanschlusses mit zugeordneten Betätigungshebeln in Schließstellung;
Figur 3 -
Federkraftklemmanschluss mit Betätigungshebel aus Figur 2 von der anderen Seite gesehen;
Figur 4 -
Seiten-Schnittansicht einer Ausführungsform einer Ausführungsform einer Anschlussklemme mit alternierend auf der Ober- und Unterseite angeordneten Betätigungshebeln;
Figur 5 -
perspektivische Schnitt-Teilansicht einer mehrreihigen Anschlussklemme als Dosenklemme;
Figur 6 -
perspektivische Darstellung eines Betätigungshebels für die Anschlussklemme aus Figur 5;
Figur 7 -
perspektivische Rückseitenansicht des Betätigungshebel aus Figur 6;
Figur 8 -
perspektivische Ansicht des Betätigungshebels aus Figur 6 und 7 von unten;
Figur 9 -
Seiten-Schnittansicht einer anderen Ausführungsform einer mehrreihigen Anschlussklemme in Form einer Dosenklemme mit nach hinten ausgerichteten Betätigungshebeln in Schließstellung;
Figur 10 -
Seiten-Schnittansicht der Anschlussklemme aus Figur 9 mit Betätigungshebel in Offenstellung;
Figur 11 -
Seitenansicht eines Betätigungshebels der Anschlussklemme aus Figur 9 und 10;
Figur 12 -
Aufsicht auf die Unterseite des Betätigungshebels aus Figur 11.
The invention is explained in more detail below using embodiments with the accompanying drawings, in which Figures 1 to 4 do not fall under claim 1. They show:
Figure 1 -
Side sectional view of a double connection terminal with two spring-loaded connections and associated operating levers;
Figure 2 -
perspective view of a spring-loaded terminal connection with associated operating levers in the closed position;
Figure 3 -
Spring clamp connection with operating lever made of Figure 2 seen from the other side;
Figure 4 -
Side sectional view of an embodiment of an embodiment of a connection terminal with operating levers arranged alternately on the top and bottom;
Figure 5 -
perspective sectional partial view of a multi-row connection terminal as a box terminal;
Figure 6 -
perspective view of an operating lever for the connection terminal made of Figure 5 ;
Figure 7 -
perspective rear view of the operating lever from Figure 6 ;
Figure 8 -
perspective view of the operating lever from Figure 6 and 7 from underneath;
Figure 9 -
Side sectional view of another embodiment of a multi-row connection terminal in the form of a box terminal with rear-facing operating levers in the closed position;
Figure 10 -
Side cut view of the terminal from Figure 9 with operating lever in open position;
Figure 11 -
Side view of an operating lever of the terminal from Figure 9 and 10 ;
Figure 12 -
View of the underside of the operating lever Figure 11 .

Figur 1 lässt eine Anschlussklemme 1 mit einem Isolierstoffgehäuse 2 erkennen, in das mindestens ein Paar voneinander gegenüberliegenden Federkraftklemmanschlüssen 3a, 3b eingebaut sind. Die Federkraftklemmanschlüsse 3a, 3b haben jeweils eine U-förmig gebogene Klemmfeder 4 sowie ein gemeinsames Stromschienenstück 5. Figure 1 shows a connection terminal 1 with an insulating housing 2, in which at least one pair of opposing spring clamp connections 3a, 3b are installed. The spring clamp connections 3a, 3b each have a U-shaped clamping spring 4 and a common busbar section 5.

Jeder Federkraftklemmanschluss 3a, 3b stellt eine Klemmstelle durch einen am freien, beweglichen Ende der Klemmfeder gebildeten Klemmabschnitt 6 und insbesondere durch die Klemmkante am freien Ende der Klemmfeder 4 sowie an dem dem Klemmabschnitt 6 gegenüberliegenden Stromschienenstückabschnitt 5a bereit. Zum Einführen eines elektrischen Leiters zu der Klemmstelle ist für jeden Federkraftklemmanschluss 3a, 3b eine zugeordnete Leitereinführungsöffnung 7 in das Isolierstoffgehäuse eingebracht. Die Leitereinführungsöffnung 7 hat einen Durchmesser, der an den größtmöglichen zulässigen Querschnitt mitsamt Isolierstoffmantel eines elektrischen Leiters angepasst ist.Each spring-loaded terminal connection 3a, 3b provides a clamping point by means of a clamping section 6 formed at the free, movable end of the clamping spring and in particular by means of the clamping edge at the free end of the clamping spring 4 and at the busbar section 5a opposite the clamping section 6. To insert an electrical conductor to the clamping point, an associated conductor insertion opening 7 is made in the insulating housing for each spring-loaded terminal connection 3a, 3b. The conductor insertion opening 7 has a diameter that is adapted to the largest possible permissible cross-section, including the insulating sheath, of an electrical conductor.

Zum Öffnen der Klemmfedern 4 hat jeder Federkraftklemmanschluss 3a, 3b einen Betätigungshebel 8 mit einem Betätigungsabschnitt 9 sowie einen daran angrenzenden, sich in einer Längsrichtung erstreckenden Betätigungsarm 10.To open the clamping springs 4, each spring-force clamp connection 3a, 3b has an actuating lever 8 with an actuating section 9 and an adjacent actuating arm 10 extending in a longitudinal direction.

In der Figur 1 ist der linke Betätigungshebel 8a in der Schließstellung und der rechte Betätigungshebel 8b in der geöffneten Stellung der Klemmfeder gezeigt. Erkennbar ist, dass die Betätigungshebel 8a, 8b um etwa 90° von der Schließstellung zur Offenstellung umgeschwenkt werden. Deutlich wird, dass der Betätigungshebel 8a mit seinem Betätigungsabschnitt 9 und insbesondere der Drehachse D um die der Betätigungshebel 8a, 8b schwenkbar im Isolierstoffgehäuse 2 der Anschlussklemme gelagert ist, im Raum der zugeordneten Leitereinführungsöffnung 7 bzw. in Leitereinführungsrichtung L zur Klemmstelle in der weiterführenden Verlängerung der Leitereinführungsöffnung 7 angeordnet ist. Die Drehachse D ist allerdings in Leitereinführungsrichtung L gesehen noch vor der Klemmstelle positioniert und liegt keinesfalls hinter den Klemmabschnitt 6 der Klemmfeder 4 in Leitereinführungsrichtung L gesehen.In the Figure 1 the left operating lever 8a is shown in the closed position and the right operating lever 8b is shown in the open position of the clamping spring. It can be seen that the operating levers 8a, 8b are pivoted by approximately 90° from the closed position to the open position. It is clear that the operating lever 8a with its operating section 9 and in particular the axis of rotation D about which the operating lever 8a, 8b is pivotably mounted in the insulating housing 2 of the connection terminal, is arranged in the space of the associated conductor entry opening 7 or in the conductor entry direction L to the clamping point in the further extension of the conductor entry opening 7. However, the axis of rotation D is still positioned in front of the clamping point when viewed in the conductor entry direction L and is in no way behind the clamping section 6 of the clamping spring 4 when viewed in the conductor entry direction L.

Erkennbar ist weiterhin, dass in Richtung der Breite der Klemmfeder 4 gesehen neben dem Klemmabschnitt 6 jeweils eine Betätigungslasche 11 freigestellt ist und von dem Klemmabschnitt 6 schräg abragt. Eine exenterartige, vorspringende Kontur des Betätigungsabschnitts 9 des zugeordneten Betätigungshebels 8a, 8b beaufschlagt beim Verschwenken des Betätigungshebels 8a, 8b von der Schließstellung (linker Betätigungshebel 8a) zur Offenstellung (rechter Betätigungshebel 8b) diese Betätigungslasche 11 während des Bewegungsablaufs mindestens teilweise. Auf diese Weise wird der Klemmabschnitt 6 der Klemmfeder 4 von dem angrenzenden, die Klemmstelle bildenden Stromschienenstückabschnitt 5a weg bewegt, um die Klemmfeder 4 zu öffnen.It can also be seen that, viewed in the direction of the width of the clamping spring 4, an actuating tab 11 is exposed next to the clamping section 6 and protrudes obliquely from the clamping section 6. An eccentric-like, protruding contour of the actuating section 9 of the associated actuating lever 8a, 8b acts on this actuating tab 11 at least partially during the movement when the actuating lever 8a, 8b is pivoted from the closed position (left actuating lever 8a) to the open position (right actuating lever 8b). In this way, the clamping section 6 of the clamping spring 4 is moved away from the adjacent busbar section 5a forming the clamping point in order to open the clamping spring 4.

Erkennbar ist weiterhin, dass die Betätigungshebel 8a, 8b in Vertiefungen des Isolierstoffgehäuses 2 für zur Aufnahme eines Teils des Betätigungsarmes 10 aufgenommen ist. Dabei ragt der Betätigungsarm 10 in der Schließstellung (linker Betätigungsarm 8a in Figur 1) entgegengesetzt zur Leitereinführungsrichtung L an der jeweiligen Vorderseite der zugehörigen Leitereinführungsöffnung 7 aus dem Isolierstoffgehäuse 2 hervor.It can also be seen that the actuating levers 8a, 8b are accommodated in recesses in the insulating housing 2 for receiving a part of the actuating arm 10. The actuating arm 10 protrudes in the closed position (left actuating arm 8a in Figure 1 ) opposite to the conductor insertion direction L at the respective front side of the associated conductor insertion opening 7 from the insulating housing 2.

Optional ist noch eine Ausführungsform denkbar, bei der der Betätigungsarm 10 um 180° gedreht ist und in Leitereinführungsrichtung L in der Schließstellung weist. Dies ist insbesondere für eine Anschlussklemme denkbar, bei der nur ein Federkraftklemmanschluss über die dargestellte Länge der Anschlussklemme in Leitereinführungsrichtung L vorhanden ist und mehrere Federkraftklemmanschlüsse in Blickrichtung der Figur 1 gesehen über die Breite verteilt angeordnet sind.Optionally, an embodiment is also conceivable in which the actuating arm 10 is rotated by 180° and points in the conductor insertion direction L in the closed position. This is particularly conceivable for a connection terminal in which only one spring-loaded terminal connection is present over the length of the connection terminal shown in the conductor insertion direction L and several spring-loaded terminal connections in the direction of view of the Figure 1 are arranged distributed across the width.

Bei der in Figur 1 dargestellten Anschlussklemme 1 ist denkbar, dass nicht nur ein solches Paar von Federkraftklemmanschlüssen 3a, 3b mit zugeordneten Betätigungshebeln 8a, 8b vorgesehen ist, sondern in Blickrichtung gesehen über die Breite der Anschlussklemme mehrere solche Anordnungen nebeneinander angeordnet sind.At the Figure 1 In the connection terminal 1 shown, it is conceivable that not only one such pair of spring-loaded terminal connections 3a, 3b with associated actuating levers 8a, 8b is provided, but rather several such arrangements are arranged next to one another across the width of the connection terminal as viewed in the direction of view.

Aus der Figur 1 wird weiterhin deutlich, dass bei dem dargestellten Ausführungsbeispiel eine Brückereinführungsöffnung 12 an der Oberseite des Isolierstoffgehäuses vorgesehen ist, die zur Oberseite des Isolierstoffgehäuses 2 offen ist. Die Brückereinführungsöffnung 12 mündet in einen durch einen Materiallappen 13 der Stromschiene 5 und ein nach unten abgebogenes Ende 14 einer Klemmfeder 4 gebildeten Brückerklemmanschluss. Auf diese Weise lassen sich je nach Bedarf in Blickrichtung der Figur 1 gesehen über die Breite nebeneinander angeordnete Stromschienen 5 mit zugeordneten Federkraftklemmanschlüssen 3a, 3b elektrisch leitend miteinander verbinden. Solche Brücker haben mindestens zwei parallel sich erstreckende Kammzinken, die über ein quer hierzu verlaufenden Steg elektrisch leitend miteinander verbunden sind. Mindestens dieser quer verlaufende Steg kann von einem Isolierstoffmantel in an sich bekannter Weise umgeben sein.From the Figure 1 It is also clear that in the embodiment shown, a bridge insertion opening 12 is provided on the top of the insulating housing, which is open to the top of the insulating housing 2. The bridge insertion opening 12 opens into a bridge terminal connection formed by a material tab 13 of the busbar 5 and a downwardly bent end 14 of a clamping spring 4. In this way, depending on requirements, in the direction of view of the Figure 1 viewed across the width, busbars 5 arranged next to one another are electrically connected to one another with associated spring-loaded terminals 3a, 3b. Such bridges have at least two parallel comb teeth, which are electrically connected to one another via a web running transversely thereto. At least this transverse web can be surrounded by an insulating material sheath in a manner known per se.

Deutlich wird weiterhin, dass das Isolierstoffgehäuse 2 zweiteilig aufgebaut ist und ein Unterteil 2a hat, auf das ein Oberteil 2b aufgerastet ist. Hierzu tauchen Rastnasen 16 des Unterteils 2a in zugeordnete Rastöffnungen 17 des Oberteils 2b ein.It is also clear that the insulating housing 2 is constructed in two parts and has a lower part 2a onto which an upper part 2b is snapped. For this purpose, locking lugs 16 of the lower part 2a engage in associated locking openings 17 of the upper part 2b.

Figur 2 lässt eine perspektivische Ansicht eines Federkraftklemmanschlusses 3 erkennen, der aus einer U-förmig gebogenen Klemmfeder 4 und einem Stromschienenstückabschnitt 5a gebildet ist. Deutlich wird, dass der die Klemmstelle bildende Stromschienenstückabschnitt 5a an seinem freien Ende einen Klemmvorsprung 18 hat, durch den eine hinsichtlich seiner Fläche reduzierte, definierte Anlagefläche für einen elektrischen Leiter geschaffen wird. Die Klemmkraft der Klemmfeder 4 wird dann über den elektrischen Leiter auf diese durch den Klemmvorsprung 18 definierte Klemmfläche konzentriert, so dass der Flächendruck im Vergleich zu einer planaren Auflagefläche erhöht ist. Deutlich wird weiterhin, dass das freie Ende des Klemmstelle bildenden Stromschienenstückabschnitts 5a schräg nach oben abgewinkelt ist, um eine Führung für einen elektrischen Leiter zur Klemmkante 18 bereitzustellen. Figure 2 shows a perspective view of a spring-loaded clamp connection 3, which is formed from a U-shaped clamping spring 4 and a busbar section 5a. It is clear that the busbar section 5a forming the clamping point has a clamping projection 18 at its free end, by means of which a defined contact surface for an electrical conductor is created with a reduced area. The clamping force of the clamping spring 4 is then concentrated via the electrical conductor onto this clamping surface defined by the clamping projection 18, so that the surface pressure is increased compared to a planar contact surface. It is also clear that the free end of the busbar section 5a forming the clamping point is angled upwards in order to provide a guide for an electrical conductor to the clamping edge 18.

Deutlich wird weiterhin, dass der Klemmstelle bildende Stromschienenstückabschnitt 5a seitlich benachbart zur Klemmkante 18 einen Ausschnitt 19 in Form einer Einsenkung hat, in die der Betätigungsabschnitt 9 des Betätigungshebels 8 eintaucht. Über die Breite der Klemmfeder 4, d.h. etwa in Blickrichtung der Figur 2 gesehen, ist unterhalb dieses Ausschnitts 19 die Betätigungslasche 11 vom Klemmabschnitt 6 der Klemmfeder 4 freigestellt und erstreckt sich in Richtung der Leitereinführungsrichtung L.It is also clear that the busbar section 5a forming the clamping point has a cutout 19 in the form of a depression laterally adjacent to the clamping edge 18, into which the actuating section 9 of the actuating lever 8 is inserted. Across the width of the clamping spring 4, ie approximately in the direction of the Figure 2 , below this cutout 19, the actuating tab 11 is free from the clamping section 6 of the clamping spring 4 and extends in the direction of the conductor insertion direction L.

Deutlich wird, dass die Seitenwand des Betätigungsabschnitts 9 des Betätigungshebels 8 für einen zur Klemmstelle eingeführten elektrischen Leiter eine seitliche Begrenzungswand bildet, die zur Führung des elektrischen Leiters zur Klemmstelle genutzt wird.It is clear that the side wall of the actuating section 9 of the actuating lever 8 forms a lateral boundary wall for an electrical conductor introduced to the clamping point, which is used to guide the electrical conductor to the clamping point.

Hinter dem Stromschienenstückabschnitt 5a, der die Klemmstelle bildet, ist die Stromschiene 5 seitlich umgefaltet derart, dass im Abstand und parallel zu dem die Klemmstelle bildenden Stromschienenstückabschnitt 5a eine Auflagefläche 20 zur Auflage eines Anlageschenkels 21 der Klemmfeder 4 geschaffen wird.Behind the busbar section 5a, which forms the clamping point, the busbar 5 is folded over laterally in such a way that a support surface 20 for supporting a contact leg 21 of the clamping spring 4 is created at a distance and parallel to the busbar section 5a forming the clamping point.

Figur 3 lässt eine perspektivische Ansicht des Federkraftklemmanschlusses 3 mit Betätigungshebel 8 aus Figur 2 von der anderen Seite aus erkennen. Deutlich wird, dass von dem Betätigungsabschnitt 9 nur auf der in Figur 3 erkennbaren Seite ein Drehzapfen 22 hervorragt. Der Drehzapfen 22 ist kreisförmig und definiert damit die Drehachse D, um die der Betätigungshebel 8 rotierbar im Isolierstoffgehäuse 2 aufgenommen ist. Der Drehzapfen 22 ist vorgesehen, um in eine nicht dargestellte korrespondierende Öffnung bzw. Ausnehmung des Isolierstoffgehäuses der Anschlussklemme 1 einzutauchen. Damit wird der Betätigungshebel 8 durch den als Lager dienenden Drehzapfen 22 rotierbar im Isolierstoffgehäuse 2 einseitig gelagert. Auf der gegenüberliegenden, aus Figur 2 erkennbaren Seite wird der Betätigungshebel 8 hingegen nur abschnittsweise durch Isolierstoffwände 2 und/oder des Stromschienenstückabschnitts 5a des Isolierstoffgehäuses 2 ohne spezifische Drehlagerung seitlich geführt. Figure 3 omits a perspective view of the spring clamp connection 3 with actuating lever 8 Figure 2 from the other side. It is clear that the operating section 9 is only visible on the Figure 3 visible side, a pivot pin 22 protrudes. The pivot pin 22 is circular and thus defines the axis of rotation D around which the actuating lever 8 is rotatably accommodated in the insulating housing 2. The pivot pin 22 is provided to be inserted into a corresponding opening or recess (not shown) in the insulating housing of the connection terminal 1. The actuating lever 8 is thus rotatably mounted on one side in the insulating housing 2 by the pivot pin 22 serving as a bearing. On the opposite side, made of Figure 2 visible side, the actuating lever 8 is guided laterally only in sections through insulating material walls 2 and/or the busbar section 5a of the insulating material housing 2 without specific pivot bearing.

Durch eine geeignete Kontur des Betätigungsabschnitts in Abstimmung mit der Lage der Drehachse D kann wie dargestellt ein Selbsthalten des geöffneten Betätigungshebels 8 in einer Übertotpunktlage erreicht werden.By means of a suitable contour of the actuating section in coordination with the position of the axis of rotation D, a self-holding of the opened actuating lever 8 in an over-center position can be achieved as shown.

Aus den Figuren 2 und 3 wird weiterhin deutlich, dass die Klemmfeder 4 in Form einer U-förmigen Klemmfeder mit einem Anlageabschnitt 21, einen sich daran anschließenden Federbogen 23 und im sich daran anschließenden in etwa in Richtung des Anlageschenkels 21 erstreckenden Klemmabschnitt 6 gebildet ist.From the Figures 2 and 3 It is further clear that the clamping spring 4 is formed in the form of a U-shaped clamping spring with a contact section 21, an adjoining spring arch 23 and the adjoining clamping section 6 extending approximately in the direction of the contact leg 21.

Figur 4 lässt eine Variante der Anschlussklemme 1 in reduzierter Seiten-Schnittansicht erkennen. Deutlich wird, dass der linke Betätigungshebel 8a für den linken Federkraftklemmanschluss nach oben aus der Oberseite des Isolierstoffgehäuses herausragt. Der rechte Betätigungshebel 8b für den rechten Federkraftklemmanschluss 3b ist hingegen spiegelverkehrt hierzu derart angeordnet, dass er aus der Unterseite des Isolierstoffgehäuses 2 herausragt. Figure 4 shows a variant of the connection terminal 1 in a reduced side sectional view. It is clear that the left operating lever 8a for the left spring clamp connection protrudes upwards from the top of the insulating housing. The right operating lever 8b for the right spring clamp connection 3b, on the other hand, is arranged in a mirror image such that it protrudes from the bottom of the insulating housing 2.

Weitere Varianten sind denkbar. Dies gilt insbesondere für Varianten von Anschlussklemmen, bei denen über die Länge der Anschlussklemme gesehen nur ein Federkraftklemmanschluss und nicht wie in den Ausführungsbeispielen nach Figur 1 und 4 zwei hintereinander liegende Federkraftklemmanschlüsse 3a, 3b vorgesehen sind. Bei diesen Ausführungsformen sind vorteilhafterweise mehrere solche Federkraftklemmanschlüsse 3a über die Breite, d.h. in Blickrichtung der Figur 4 gesehen hintereinander angeordnet. Zum Einsparen von Bauraum kann es dann von Vorteil sein, wenn die Betätigungshebel 8 alternierend über die Breite gesehen an der Oberseite und Unterseite herausragen.Other variants are conceivable. This applies in particular to variants of connection terminals in which there is only one spring clamp connection over the length of the connection terminal and not, as in the embodiments according to Figure 1 and 4 two spring clamp connections 3a, 3b arranged one behind the other are provided. In these embodiments, several such spring clamp connections 3a are advantageously provided across the width, ie in the direction of view of the Figure 4 arranged one behind the other. To save installation space, it can be advantageous if the actuating levers 8 protrude alternately across the width at the top and bottom.

Denkbar ist dabei auch eine Variante, bei der die Betätigungsarme 10 alternierend einerseits in Leitereinführungsrichtung und bei dem danebenliegenden Federkraftklemmanschluss 3 entgegengesetzt zur Leitereinführungsrichtung L aus der Rückseite bzw. Vorderseite herausragen.A variant is also conceivable in which the actuating arms 10 protrude alternately from the rear or front side on the one hand in the conductor insertion direction and, in the case of the adjacent spring-loaded terminal connection 3, opposite to the conductor insertion direction L.

Dabei ist noch eine Variante denkbar, dass nicht nur die Richtung der Betätigungsarme 10 alternierend wechseln, sondern auch die Ausrichtung der Betätigungshebel alternierend so sind, dass diese aus der Oberseite und benachbart aus der Unterseite des Isolierstoffgehäuses 2 herausragen bzw. in Vertiefungen an der Oberseite und alternierend der Unterseite aufgenommen sind.Another variant is conceivable in which not only the direction of the actuating arms 10 changes alternately, but also the orientation of the actuating levers is alternately such that they protrude from the top and adjacent from the bottom of the insulating housing 2 or are accommodated in recesses on the top and alternately the bottom.

So zeigt Figur 5 eine Ausführungsform einer mehrreihigen Anschlussklemme 1 in Form einer Dosenklemme. Diese Anschlussklemme 1 hat mehrere nebeneinander liegende und elektrisch leitend miteinander verbundene Federkraftklemmanschlüsse 3 von denen der linke sichtbar ist. Es ist erkennbar, dass eine Klemmfeder 4 in ein Stromschienenstück 5 angehängt ist. Die Klemmfeder 4 ist wiederum U-förmig gebogen, so dass ein Klemmabschnitt 6 mit einer Klemmkappe am freien Ende zur Bildung einer Klemmstelle gegen den Stromschienenstückabschnitt 5a ragt. Im unbelasteten Zustand ohne eingeklemmten elektrischen Leiter liegt die Klemmkante an dem Stromschienenstückabschnitt 5a.This shows Figure 5 an embodiment of a multi-row connection terminal 1 in the form of a box terminal. This connection terminal 1 has several adjacent lying and electrically connected spring-loaded terminal connections 3, of which the left one is visible. It can be seen that a clamping spring 4 is attached to a busbar section 5. The clamping spring 4 is in turn bent in a U-shape so that a clamping section 6 with a clamping cap at the free end protrudes against the busbar section 5a to form a clamping point. In the unloaded state without a clamped electrical conductor, the clamping edge lies on the busbar section 5a.

Die Klemmfeder 4 hat bei dieser Ausführungsform beidseits des Klemmabschnitts 6 Betätigungslaschen 11.In this embodiment, the clamping spring 4 has actuating tabs 11 on both sides of the clamping section 6.

Die Stromschienenstücke 5 der in Blickrichtung schräg nach rechts hinten nebeneinander angeordneten Federkraftklemmanschlüsse 3 können elektrisch leitend miteinander verbunden sein. Denkbar ist aber auch eine Ausführungsform der Anschlussklemme 1, bei der jeweils zwei nebeneinander liegende Federkraftklemmanschlüsse 3 elektrisch leitend miteinander verbunden sind und zwei oder drei Paare solcher elektrisch leitend miteinander verbundenen Federkraftklemmanschlüsse 3 vorgesehen sind. Damit können jeweils zwei Leiter für einen einphasigen Spannungsversorgungsanschluss mit den Anschlüssen L (Phase), N (Neutralleiter) und PE (Erde) jeweils miteinander verbunden werden, so dass eine Netzanschlussklemme gebildet wird.The busbar pieces 5 of the spring clamp connections 3 arranged next to each other diagonally to the right at the back can be electrically connected to each other. However, an embodiment of the connection terminal 1 is also conceivable in which two spring clamp connections 3 lying next to each other are electrically connected to each other and two or three pairs of such electrically connected spring clamp connections 3 are provided. This means that two conductors for a single-phase power supply connection with the connections L (phase), N (neutral conductor) and PE (earth) can each be connected to each other, so that a mains connection terminal is formed.

Deutlich wird, dass die Betätigungshebel 8 jeweils neben den Klemmstellen, d.h. neben dem Stromschienenstückabschnitt 5a und dem Klemmabschnitt 6 unmittelbar hinter dem Ende der im Isolierstoffgehäuse 2 ausgeformten Leitereinführungsöffnung 7 angeordnet sind. Die Betätigungsabschnitte 9 der Betätigungshebel 8 bilden eine Fortführung der Wand der jeweiligen Leitereinführungsöffnung 7, um einen elektrischen Leiter zur Klemmstelle zu führen. Jeder Betätigungsabschnitt 9 wirkt mit einer zugeordneten Betätigungslasche 11 der Klemmfeder 4 zusammen. Die Drehachse der Betätigungshebel 8 liegt wie in dem vorher beschriebenen Ausführungsbeispiel unterhalb des Stromschienenstückabschnitts 5 im Bereich der Klemmstelle. Die Drehachse erstreckt sich quer zur Leitereinsteckrichtung, die durch die Erstreckungsrichtung der Leitereinführungsöffnung 7 vorgegeben ist.It is clear that the actuating levers 8 are arranged next to the clamping points, i.e. next to the busbar section 5a and the clamping section 6 immediately behind the end of the conductor insertion opening 7 formed in the insulating housing 2. The actuating sections 9 of the actuating levers 8 form a continuation of the wall of the respective conductor insertion opening 7 in order to guide an electrical conductor to the clamping point. Each actuating section 9 interacts with an associated actuating tab 11 of the clamping spring 4. The axis of rotation of the actuating levers 8 is located, as in the previously described embodiment, below the busbar section 5 in the area of the clamping point. The axis of rotation extends transversely to the conductor insertion direction, which is predetermined by the extension direction of the conductor insertion opening 7.

Deutlich wird auch, dass die Betätigungsarme 10 sich entgegengesetzt zur Leitereinsteckrichtung L erstrecken und an der Oberseite des Isolierstoffgehäuses 2 angeordnet sind. Die freien Enden der Betätigungsarme 10 liegen im Bereich der Vorderseite. Die freien Enden der Betätigungsarme 10 sind von den Begrenzungswänden der Leitereinführungsöffnung 7 bzw. dem Isolierstoffgehäuse 2 derart beabstandet, dass sie von Hand gegriffen und verschwenkt werden können.It is also clear that the actuating arms 10 extend opposite to the conductor insertion direction L and are arranged on the top of the insulating housing 2. The free ends of the actuating arms 10 are located in the area of the front. The free ends of the actuating arms 10 are spaced from the boundary walls of the conductor insertion opening 7 or the insulating housing 2 in such a way that they can be grasped and pivoted by hand.

Aus Figur 5 wird insbesondere anhand der mittig dargestellten Leitereinführungsöffnungen 7 mit dem sich daran anschließenden Betätigungshebel 8 deutlich, dass ein Betätigungshebel jeweils bei dem Ausführungsbeispiel jeweils zum Öffnen von zwei nebeneinander liegenden Federkraftklemmanschlüssen 3 vorgesehen ist. Alternativ kann auch pro Klemmstelle jeweils ein Betätigungshebel 8 vorgesehen sein.Out of Figure 5 It is particularly clear from the conductor insertion openings 7 shown in the middle with the actuating lever 8 connected to them that an actuating lever is provided in each case in the exemplary embodiment for opening two spring-loaded terminal connections 3 lying next to one another. Alternatively, one actuating lever 8 can also be provided for each terminal point.

Figur 6 lässt eine perspektivische Ansicht eines solchen Betätigungshebels 8 von der Vorderseite erkennen. Deutlich wird aber dabei, dass im mittleren, zentralen Bereich eine Öffnung 24 vorhanden ist, in die eine Führungswand des Isolierstoffgehäuses eintaucht, um den Betätigungshebel 8 kippsicher im Isolierstoffgehäuse 2 zu führen. Die Öffnung 24 ist im oberen Bereich von einem umlaufenden Kragen umgeben. Dieser dient zur Verstärkung und Versteifung des Betätigungshebels 8. Figure 6 shows a perspective view of such an actuating lever 8 from the front. However, it is clear that there is an opening 24 in the middle, central area, into which a guide wall of the insulating housing dips in order to guide the actuating lever 8 in the insulating housing 2 so that it cannot tip over. The opening 24 is surrounded in the upper area by a circumferential collar. This serves to reinforce and stiffen the actuating lever 8.

Deutlich ist weiterhin, dass der Betätigungshebel an seinen beiden seitlichen äußeren Enden einen als Lager dienenden Drehzapfen 22 hat. Die Drehzapfen 22 sind in korrespondierende Öffnungen im Isolierstoffgehäuse 2 aufgenommen.It is also clear that the actuating lever has a pivot pin 22 at its two outer lateral ends, which serves as a bearing. The pivot pins 22 are accommodated in corresponding openings in the insulating housing 2.

Erkennbar ist weiterhin, dass für jeden Federkraftklemmanschluss 3 jeweils zwei einander gegenüberliegende Betätigungsabschnitte 9 vorgesehen sind, so dass ein elektrischer Leiter beidseits an diesen Betätigungsabschnitten 9 zur Klemmstelle geführt wird, nachdem der elektrische Leiter von der seitlich umlaufend begrenzten Leitereinführungsöffnung 7 zur Klemmstelle hin aus der Leitereinführungsöffnung 7 austritt.It can also be seen that for each spring-loaded terminal connection 3, two actuating sections 9 are provided opposite one another, so that an electrical conductor is guided to the terminal point on both sides of these actuating sections 9 after the electrical conductor emerges from the conductor insertion opening 7, which is delimited on the sides all the way around, towards the terminal point.

Die einander gegenüberliegenden Betätigungsabschnitte 9 dienen somit als Fortsetzung der Leitereinführungsöffnung 7.The opposing actuating sections 9 thus serve as a continuation of the conductor insertion opening 7.

An den einander gegenüberliegenden Seitenkanten der Betätigungsarme 10 können die Betätigungshebel 8 Rastnuten 26 oder vorspringende Rastzapfen haben, um den Betätigungshebel im geschlossenen Zustand mit dem Isolierstoffgehäuse 2 zu verrasten und ein unbeabsichtigtes Öffnen der Betätigungshebel 8 mit reduzierter Kraft zu verhindern.On the opposite side edges of the actuating arms 10, the actuating levers 8 can have locking grooves 26 or projecting locking pins in order to lock the actuating lever to the insulating housing 2 in the closed state and to prevent unintentional opening of the actuating levers 8 with reduced force.

Figur 7 lässt den Betätigungshebel aus Figur 6 in der Rückseitenansicht erkennen. Deutlich wird die als Schlitz ausgeführte Vertiefung 24 im Zentrum des Betätigungshebels 8. Figure 7 leaves the operating lever Figure 6 in the rear view. The recess 24 in the form of a slot in the center of the operating lever 8 is clearly visible.

Erkennbar ist auch der an der Oberseite des Betätigungsarms 10 umlaufende Kragen 25, der in die Wände übergeht, die die Betätigungsabschnitte 9 mit der dazwischen liegenden Öffnung 24 (Schlitz) bilden.Also visible is the collar 25 running around the top of the actuating arm 10, which merges into the walls that form the actuating sections 9 with the opening 24 (slot) in between.

Figur 8 lässt eine perspektivische Ansicht des Betätigungshebels aus Figur 6 und 7 von der Unterseite erkennen. Dabei wird deutlich, dass die Öffnung 24 im unteren Bereich wieder geschlossen ist. Erkennbar ist auch, dass die Wände, die die Betätigungsabschnitte 9 bilden, über Stege 27 an der Unterseite des Betätigungsarms 10 in diesen übergehen, um so den Betätigungsarm 10 zu versteifen und ein Ausfedern relativ zu den Betätigungsabschnitten 9 zu verhindern. Die Betätigungsabschnitte 9 haben eine auf die Drehachse D abgestimmte Kontur derart, dass der geöffnete Betätigungshebel 8 in einer Übertotpunktlage selbsthaltend bleibt. Figure 8 omits a perspective view of the operating lever Figure 6 and 7 from the underside. It is clear that the opening 24 in the lower area is closed again. It is also clear that the walls that form the actuating sections 9 merge into the actuating arm 10 via webs 27 on the underside of the actuating arm 10 in order to stiffen the actuating arm 10 and prevent it from rebounding relative to the actuating sections 9. The actuating sections 9 have a contour that is coordinated with the axis of rotation D in such a way that the opened actuating lever 8 remains self-locking in an over-center position.

Erkennbar ist weiterhin, dass zusätzlich zu den Drehzapfen 22 im mittleren Bereich eine Führungsfläche 22a zur Lagerung vorhanden ist.It can also be seen that in addition to the pivot pins 22, a guide surface 22a for bearing is provided in the central area.

Figur 9 lässt eine weitere Ausführungsform einer Anschlussklemme 1 mit mehreren in Blickrichtung hintereinander angeordneten Federkraftklemmanschlüssen 3 und zugeordneten Betätigungshebeln 8 erkennen. In der Darstellung ist der Betätigungshebel 8 nach oben in der Schließstellung gezeigt, bei der die Klemmfeder 4 des Federkraftklemmanschlusses 3 geschlossen ist. Figure 9 shows a further embodiment of a connection terminal 1 with several spring-loaded terminal connections 3 arranged one behind the other in the viewing direction and associated actuating levers 8. In the illustration, the actuating lever 8 is shown upwards in the closed position, in which the clamping spring 4 of the spring-loaded terminal connection 3 is closed.

Figur 10 zeigt denselben Betätigungshebel 8 in der Offenstellung, bei der der Federkraftklemmanschluss 3 geöffnet ist. Figure 10 shows the same operating lever 8 in the open position, in which the spring-loaded terminal connection 3 is open.

Deutlich wird, dass der Betätigungshebel 8 mit seinem Betätigungsabschnitt 9 unmittelbar hinter der Leitereinführungsöffnung 7 wiederum seitlich neben dem Stromschienenstück 5 bzw. dem die Klemmstelle bildenden Stromschienenstückabschnitt 5a angeordnet ist. Wiederum liegt die Drehachse D in der Leitereinführungsöffnung 7 bzw. direkt dahinter und in Leitereinsteckrichtung L gesehen kurz vor der Klemmstelle sowie unterhalb des die Klemmstelle bildenden Stromschienenstückabschnitt 5a. die Betätigungsarme 10 der Betätigungshebel 8 sind in Leitereinsteckrichtung L von den Leitereinführungsöffnungen 7 weg in Richtung der Rückseite der Anschlussklemme 1 gerichtet.It is clear that the actuating lever 8 with its actuating section 9 is arranged directly behind the conductor insertion opening 7, again to the side next to the busbar section 5 or the busbar section 5a forming the terminal point. Again, the axis of rotation D is in the conductor insertion opening 7 or directly behind it and, viewed in the conductor insertion direction L, just before the terminal point and below the busbar section 5a forming the terminal point. The actuating arms 10 of the actuating lever 8 are directed away from the conductor insertion openings 7 in the direction of the rear of the connection terminal 1 in the conductor insertion direction L.

Damit wird ein sehr kompakter Aufbau der Anschlussklemme 1 bei einfacher und zuverlässiger Betätigung des Federkraftklemmanschlusses 3 ermöglicht.This enables a very compact design of the connection terminal 1 with simple and reliable operation of the spring-loaded terminal connection 3.

Erkennbar ist weiterhin, dass an der Rückseite des Isolierstoffgehäuses 2 im unteren Bereich eine Prüföffnung 28 vorgesehen ist, die zur Klemmfeder 4 geöffnet ist. Auf diese Weise kann das an dem Federkraftklemmanschluss anliegenden Spannungspotential mit Hilfe eines in die Prüföffnung 28 eingeführten Prüfstiftes gemessen werden.It can also be seen that a test opening 28 is provided on the lower part of the rear side of the insulating housing 2, which is open towards the clamping spring 4. In this way, the voltage potential present at the spring-loaded terminal connection can be measured using a test pin inserted into the test opening 28.

Figur 11 lässt eine Seitenansicht der Betätigungshebel 8 der Anschlussklemme 1 aus Figur 9 und 10 erkennen. Deutlich wird, dass der Betätigungsarm 10 von dem Betätigungsabschnitt 9 zunächst schräg nach hinten und dann in Leitereinsteckrichtung L wegragt. Erkennbar ist auch das Querstück 10c am unteren freien Ende des Betätigungsarms 10. Figure 11 omits a side view of the operating lever 8 of the terminal 1 Figure 9 and 10 It is clear that the actuating arm 10 initially protrudes from the actuating section 9 at an angle to the rear and then in the conductor insertion direction L. The crosspiece 10c at the lower free end of the actuating arm 10 is also visible.

Der Betätigungsabschnitt 9 hat eine Nase 30, die auf die Lage der Drehachse so abgestimmt ist, dass der geöffnete Betätigungshebel 8 in einer Übertotpunktlage selbsthaltend verharrt.The actuating section 9 has a nose 30 which is adapted to the position of the rotation axis in such a way that the opened actuating lever 8 remains self-locking in an over-center position.

Figur 12 lässt eine Aufsicht auf den Betätigungsarm aus Figur 11 von unten erkennen. Dabei wird der Aufbau des Betätigungsarms 10 mit zwei Armabschnitten 10a, 10b und dem die Armabschnitte 10a, 10b am freien Ende verbindenen Querstück 10c deutlich. Figure 12 omits a view of the operating arm Figure 11 from below. The structure of the actuating arm 10 with two arm sections 10a, 10b and the crosspiece 10c connecting the arm sections 10a, 10b at the free end becomes clear.

Erkennbar ist auch, dass seitlich an den Außenseiten der Betätigungsabschnitte 9 Drehzapfen 22 herausragen, die in entsprechende Vertiefungen des Isolierstoffgehäuses 2 der Anschlussklemme 1 gelagert sind.It can also be seen that pivot pins 22 protrude laterally from the outer sides of the actuating sections 9 and are mounted in corresponding recesses in the insulating housing 2 of the connection terminal 1.

Erkennbar ist weiterhin, dass die einander gegenüberliegenden Innenseiten der Betätigungsabschnitte 9 zum freien Ende hin schräg gestellt sind und Einfüh-rungsschrägen 29 zum Führen eines elektrischen Leiters ohne störende Kanten haben.

Geänderte Beschreibung
It can also be seen that the opposing inner sides of the actuating sections 9 are inclined towards the free end and have insertion bevels 29 for guiding an electrical conductor without disturbing edges.

Changed description

Claims (7)

  1. Connection terminal (1) having:
    - at least one busbar piece (5) and
    - at least one clamping spring (4),
    with the connection terminal (1) having at least one spring-force clamping connection (3, 3a, 3b), which is formed from a clamping spring (4) and a portion (5a) of a busbar piece (5), in order to clamp an electrical conductor at a clamping point between a clamping portion of the clamping spring (4) and the busbar piece portion (5a),
    - and having an insulating-material housing (2) which has at least one conductor insertion opening (7) which leads to an associated spring-force clamping connection (3, 3a, 3b) and extends in a conductor insertion direction (L),
    - and having at least one pivotably mounted operating lever (8, 8a, 8b) which is designed to interact with at least one clamping spring (4) by means of an operating portion (9) in order to open at least one associated spring-force clamping connection (3, 3a, 3b) when the operating lever (8, 8a, 8b) is pivoted, and has an operating arm (10) which adjoins the operating portion (9),
    characterized in that
    - the operating lever (8, 8a, 8b) is arranged pivotably in an associated conductor insertion opening (7) or the extension of the conductor insertion opening (7) continuing in the conductor insertion direction (L) to the clamping point, the axis of rotation (D) of the operating lever (8, 8a, 8b) being arranged transversely to the conductor insertion direction in the associated conductor insertion opening (7) or the extension of the conductor insertion opening (7) continuing in the conductor insertion direction (L) to the clamping point, and in that the operating lever (8, 8a, 8b) has two opposing lateral boundary walls for guiding an electrical conductor inserted into a conductor insertion opening (7) in the conductor insertion direction (L) to an associated clamping point.
  2. Connection terminal (1) according to one of the preceding claims, characterized in that the at least one operating lever (8, 8a, 8b) has an operating arm (10) which extends in the conductor insertion direction (L) in the closed state of the associated spring-force clamping connection (3, 3a, 3b).
  3. Connection terminal (1) according to one of the preceding claims, characterized in that the at least one operating lever (8, 8a, 8b) is arranged so as to be adjacent to an associated busbar piece portion (5a), which forms the clamping point, such that the operating lever (8, 8a, 8b) is pivotally arranged in the space between the plane which is spanned by the busbar piece portion (5a) and a plane which is parallel thereto and in which the clamping edge of the clamping spring (4), which is fully open when the operating lever (8, 8a, 8b) is pivoted, is situated
  4. Connection terminal (1) according to one of the preceding claims, characterized in that at least one operating lever (8, 8a, 8b) enters a cutout (19) in the busbar piece (5), which cutout is made so as to be adjacent to a clamping portion of the associated busbar piece (5a), and by way of an operating portion (9) acts on an operating tab (11) which is arranged next to the clamping portion (6) of the clamping spring (4) as seen over the width of an associated clamping spring (4), in order to open the clamping spring (4).
  5. Connection terminal (1) according to claim 4, characterized in that the operating tab (11) is released by the clamping spring (4) and projects obliquely from the clamping portion (6) of the clamping spring (4).
  6. Connection terminal (1) according to one of the preceding claims, characterized in that the at least one clamping spring (4) is a clamping spring (4) which is bent in the shape of a U and of which the free clamping portion (6) points obliquely in the direction of an associated busbar piece (5) in order to allow an electrical conductor to be directly inserted without first opening the clamping spring (4) by way of the associated operating lever (8, 8a, 8b).
  7. Connection terminal (1) according to one of the preceding claims, characterized in that the at least one operating lever (8, 8a, 8b) has an operating arm (10) which extends in the conductor insertion direction (L) or counter to said conductor insertion direction on the lower side or upper side of the connection terminal (1).
EP16187324.5A 2011-12-14 2012-12-12 Connection terminal Active EP3125372B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16187324.5T PL3125372T5 (en) 2011-12-14 2012-12-12 Connection terminal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011056410A DE102011056410B4 (en) 2011-12-14 2011-12-14 terminal
EP12196722.8A EP2605335B2 (en) 2011-12-14 2012-12-12 Connection terminal

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP12196722.8A Division EP2605335B2 (en) 2011-12-14 2012-12-12 Connection terminal
EP12196722.8A Division-Into EP2605335B2 (en) 2011-12-14 2012-12-12 Connection terminal

Publications (3)

Publication Number Publication Date
EP3125372A1 EP3125372A1 (en) 2017-02-01
EP3125372B1 EP3125372B1 (en) 2018-01-17
EP3125372B2 true EP3125372B2 (en) 2024-05-01

Family

ID=47429791

Family Applications (3)

Application Number Title Priority Date Filing Date
EP12806010.0A Active EP2792024B1 (en) 2011-12-14 2012-12-11 Terminal having an operating lever pivotably supported about a rotational axis
EP12196722.8A Active EP2605335B2 (en) 2011-12-14 2012-12-12 Connection terminal
EP16187324.5A Active EP3125372B2 (en) 2011-12-14 2012-12-12 Connection terminal

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP12806010.0A Active EP2792024B1 (en) 2011-12-14 2012-12-11 Terminal having an operating lever pivotably supported about a rotational axis
EP12196722.8A Active EP2605335B2 (en) 2011-12-14 2012-12-12 Connection terminal

Country Status (14)

Country Link
US (2) US9124034B2 (en)
EP (3) EP2792024B1 (en)
JP (3) JP5833774B2 (en)
KR (1) KR101558119B1 (en)
CN (3) CN103999290B (en)
BR (1) BR112014014271B1 (en)
DE (1) DE102011056410B4 (en)
DK (3) DK2792024T3 (en)
ES (3) ES2569727T3 (en)
FI (1) FI3125372T4 (en)
PL (3) PL2792024T3 (en)
PT (2) PT3125372T (en)
RU (1) RU2572567C1 (en)
WO (1) WO2013087619A1 (en)

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PL2605335T5 (en) 2023-02-27
DK3125372T3 (en) 2018-04-23
ES2606362T3 (en) 2017-03-23
EP2605335A2 (en) 2013-06-19
EP2792024B1 (en) 2016-03-09
US9124034B2 (en) 2015-09-01
EP2792024A1 (en) 2014-10-22
PL2792024T3 (en) 2016-08-31
DK2605335T4 (en) 2023-01-23
BR112014014271A2 (en) 2017-06-13
RU2572567C1 (en) 2016-01-20
CN103999290A (en) 2014-08-20
EP2605335B1 (en) 2016-09-21
EP3125372A1 (en) 2017-02-01
CN107257037A (en) 2017-10-17
JP2013125749A (en) 2013-06-24
DE102011056410B4 (en) 2013-06-27
WO2013087619A1 (en) 2013-06-20
DK3125372T4 (en) 2024-08-05
KR20140091598A (en) 2014-07-21
PL2605335T3 (en) 2017-03-31
US8794994B2 (en) 2014-08-05
EP3125372B1 (en) 2018-01-17
ES2662899T3 (en) 2018-04-10
US20130157520A1 (en) 2013-06-20
DK2792024T3 (en) 2016-06-06
BR112014014271B1 (en) 2020-12-15
JP2015505129A (en) 2015-02-16
CN103199350B (en) 2017-08-29
PT2605335T (en) 2016-12-15
US20140370740A1 (en) 2014-12-18
EP2605335A3 (en) 2014-04-16
ES2569727T3 (en) 2016-05-12
DE102011056410A1 (en) 2013-06-20
CN103999290B (en) 2016-11-02
JP6626477B2 (en) 2019-12-25
JP2017216250A (en) 2017-12-07
EP2605335B2 (en) 2022-10-19
PT3125372T (en) 2018-03-20
BR112014014271A8 (en) 2017-06-13
KR101558119B1 (en) 2015-10-06
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PL3125372T3 (en) 2018-07-31
PL3125372T5 (en) 2024-09-09

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