EP2956991A1 - Spring-loaded clamping connection and conductor terminal - Google Patents

Spring-loaded clamping connection and conductor terminal

Info

Publication number
EP2956991A1
EP2956991A1 EP14703881.4A EP14703881A EP2956991A1 EP 2956991 A1 EP2956991 A1 EP 2956991A1 EP 14703881 A EP14703881 A EP 14703881A EP 2956991 A1 EP2956991 A1 EP 2956991A1
Authority
EP
European Patent Office
Prior art keywords
clamping
spring
leg
conductor
terminal connection
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.)
Granted
Application number
EP14703881.4A
Other languages
German (de)
French (fr)
Other versions
EP2956991B1 (en
Inventor
Hans-Josef Köllmann
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
Application filed by Wago Verwaltungs GmbH filed Critical Wago Verwaltungs GmbH
Priority to PL14703881T priority Critical patent/PL2956991T3/en
Publication of EP2956991A1 publication Critical patent/EP2956991A1/en
Application granted granted Critical
Publication of EP2956991B1 publication Critical patent/EP2956991B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means

Definitions

  • the invention relates to a Federkraftklemman gleich for clamping electrical conductors with a clamping spring and a busbar, wherein the clamping spring has a plant leg, a subsequent to the plant leg spring bow and a subsequent to the spring bow clamping leg and the clamping leg a clamping edge to form a nip with the adjacent Busbar for an electrical conductor to be clamped has.
  • the spring clamp terminal further has a frame member which is formed as a separate part from the clamp spring and the bus bar and has a base portion, a bending portion adjoining the base portion, and a holding portion spaced from the base portion.
  • the plant leg of the clamping spring is fixed to the holding section.
  • the invention further relates to a conductor connection terminal with an insulating material housing and such a spring force clamping connection in the insulating material housing.
  • DE 10 2010 024 809 A1 discloses a terminal with a spring clamp unit which has a clamp spring and a bus bar. On the busbar separate brackets can then be attached, which engage under the busbar and set the plant leg on the clamping spring at the opposite end.
  • the bus bar extends in the conductor insertion direction and is folded over at the end of the insulating housing to provide a free end receiving pocket of a male electrical conductor.
  • No. 5,454,730 describes a connection terminal with a U-shaped bent clamping spring, seen in the conductor insertion direction behind the clamping point is bent in the direction of the busbar and this encompasses.
  • the busbar is bent in front of the nip upwards in the direction of spring bow of the clamping spring and has a folded in Leiterereinsteckraum free end on which the spring bow rests with an adjoining portion of the plant leg. This creates a self-supporting construction.
  • the frame element In contrast to a conventional extending transversely to the direction of extension of a busbar transverse strap for fixing a clamping spring with its plant leg to the busbar, the frame element extends in extension of the plant leg.
  • the separate frame part forms a conductor receiving space behind the clamping point.
  • the base section extends toward the bending section in the direction of conductor insertion. The bending section is then bent upwards away from the busbar plane and the adjoining Holding portion extends in the main extension direction of the abutment leg, so that the abutment leg is extended by the holding portion, and the abutment leg is fixed to the holding portion.
  • Such a U-shaped frame is not simply formed integrally from the busbar.
  • the frame is formed by a separate part from the clamping rail and the bus bar, i. not made integral with the busbar and / or clamping spring.
  • the busbar of electrically very good conductive material, in particular copper material to produce to ensure good power transmission with low transmission resistance. Copper material is very expensive and relatively soft.
  • the clamping spring is made of spring steel sheet material, which is less electrically conductive than copper sheet and springs.
  • the frame element however, the stiffest possible, non-resilient material is required.
  • the frame element does not have a main requirement for electrical conductivity. However, it should be as inexpensive as possible, since the frame element has a significant contribution to the material requirements of the spring terminal connection.
  • the frame member may be formed, for example, from a cheap simple steel sheet.
  • the frame member may be made of a thicker material than that of the clamping spring and is not dependent on the clamping spring thickness. In the Area of the frame member are lower demands on the strength than in the region of the clamping spring, so that there a more cost-effective structure can be used. Since the flexural strength is not linearly dependent on the material thickness, the separate frame element provides degrees of freedom in the implementation.
  • a conductor receiving space is formed in extension of the busbar in Leiterereinsteckraum, so that the frame member not only contributes to holding and fixing the abutment leg of the clamping spring, but also to guide the free end of a terminal clamped to an electrical conductor during insertion into the Federkraftklemman gleich.
  • the holding section of the separate frame element has a projecting centering nose which dips into a centering opening of the abutment leg of the clamping spring.
  • the centering nose can be removed in a particularly simple and inexpensive manner, e.g. be formed as an impression of the sheet material of the frame member.
  • a die punch sheet material is pushed out of the plane of the frame member at the bottom to there a. to form a circular centering nose.
  • the abutment leg of the clamping spring has a projecting centering nose which dips into a centering opening of the holding section of the frame element and fixes the clamping spring on the holding section. Due to the different materials, wherein the clamping spring of a thin spring steel material and the frame member is usually formed of a thicker easily deformable steel sheet, however, offers the variant of introducing a centering nose of the
  • the abutment leg of the clamping spring can be welded, soldered, riveted, clamped, pressed, glued or screwed to the holding section of the frame element.
  • Other attachment possibilities of the abutment leg on the holding portion of the frame member are conceivable, which usually the different materials of frame member and clamping spring must be considered.
  • the plant leg can be arranged on the side facing in the direction of busbar side of the holding portion, so that the plant leg is lying on the inside and the frame member lying outside. This supports a self-supporting construction. It is also conceivable, however, that the contact leg rests on the side of the holding portion of the holding portion, which is opposite to the busbar. It is also possible that the free end of the holding portion is spread open to receive the plant leg between two forks of the holding portion.
  • the bus bar rests on the base portion of the frame element.
  • the frame member forms not only a holder for the plant leg of the clamping spring, but also for the busbar, so that the clamping force of the clamping spring over an inserted electrical conductor acts on the busbar and is caught by the underlying base portion.
  • the base portion of the frame member as a support for the busbar, the base portion in addition to the power rail can also contribute to power transmission and cooling. Even if no main requirement is placed on the electrical conductivity of the frame element, the electrical conductivity of the frame element allows a busbar with a smaller cross section to be used.
  • a bus bar usually formed of electrolytic copper has a much higher conductivity than simple steel and in particular as spring steel. In the design of the frame member made of steel and an electrical conductivity of about 10 to 20% of the busbar due to the proportionately large cross section and the relatively large surface for a sufficient power transmission and temperature reduction, so that the busbar can be designed in a smaller cross section.
  • the support of the busbar on the base portion of the frame member also has the advantage of a higher short circuit safety, since the frame member provides a much larger compared to the busbar mass of conductive material.
  • busbar bumps for receiving and guiding an electrical conductor to the nip has.
  • These indentations are preferably arranged in Leitereinsteckcardi seen before the nip and serve the improved management of an electrical conductor to the nip and from there through the frame member delimiting autismeinsteckraums.
  • the busbar is not simply located on the base section, but is fixed to the base section. This would create a unity of the frame element formed from different materials and busbar.
  • the clamping leg preferably has at least one actuating lug arranged laterally on the edge region of the clamping leg. This can then be acted upon with an actuating tool, with a built-in insulating material in a pivotally mounted actuating lever or with a linearly displaceable actuating handle with an actuating force. As a result, the clamping leg is moved to open the nip of the busbar away.
  • the object is further achieved by a conductor terminal with an insulating material housing, in which a spring-force clamp connection described above is installed.
  • Figure 1 side view of a FederkraftklemmanBankes
  • FIG. 3 perspective view of the spring terminal connection of Figures 1 and 2;
  • Figure 4 side sectional view of a conductor terminal with a built-in an insulating housing spring terminal connection of Figures 1 to 3 with the operating lever open;
  • Figure 5 side sectional view of a conductor terminal with a built-in an insulating housing spring terminal connection of Figures 1 to 3 with a closed actuating lever.
  • FIG. 1 shows a side view of a spring-force clamping connection 1, which is formed from three parts.
  • the spring terminal connection 1 has a clamping spring 2 made of a spring steel sheet.
  • Spring steel is a steel with increased strength, ie a significantly higher elastic limit compared to, for example, structural steel.
  • the ratio of yield strength to tensile strength in spring steels is usually in the range of more than 85%.
  • the clamping springs are made, for example, from chrome-nickel spring steel, ie from a chromium and nickel-containing alloy.
  • the clamping spring 2 is formed in principle U-shaped and has a plant leg 3, an adjoining spring bow 4 and a subsequent to the spring bow 4 clamping leg 5.
  • the clamping leg 5 is is applied by the force of the clamping spring 2, in particular by the spring bow 4, pressed away from the plant leg 3 in the direction of a bus bar 6.
  • the bus bar 6 is the second part of the spring terminal connection. 1 It is usually formed of electrolyte-copper material and preferably tin-plated. This ensures a good electrical conductivity with low contact resistance.
  • the spring force clamping connection 1 furthermore has a frame element 7 designed as a separate part for the clamping spring 2 and the busbar 6. made of a sheet steel.
  • the sheet material should be as stiff as possible and in contrast to the clamping spring 2 have the lowest possible elasticity.
  • the frame element 7 is preferably made of a so-called base steel, which is low alloyed and only partially heat treated. It is also conceivable that the frame member 7 is made of a tool steel or the like or possibly also made of fiber composite material or the like. In any case, it should be as rigid as possible, so that even when clamping an electrical conductor and a spring force pressure caused thereby, the frame member 7 is not expanded.
  • the frame member 7 may preferably consist of a thicker material than the clamping spring 2 and is not dependent on the thickness of the clamping spring 2. Thus, higher strengths compared to the use of spring steel are possible without much effort. Since the flexural strength is not linearly dependent on the material thickness, the separate frame member 7 offers degrees of freedom in the implementation regardless of the design of the clamp spring 2 in terms of spring characteristics and regardless of the design of the bus bar 6 in terms of power transmission characteristic.
  • the frame element 7 has a holding section 8 extending in an extension of the extension direction of the abutment leg 3, on which the plant leg 3 of the clamping spring 2 is fixed.
  • a bending section 9 connects, which is folded over, for example, with two bends or creases down in the direction of the plane of the bus bar 6.
  • a base portion 10 connects.
  • the base portion 10 engages with its free end of the bus bar 6, which rests in this way on the base portion 10.
  • the busbar 6 can also be fixed to the base portion 10 by the busbar 6 mounted in the free end of the base portion 10, welded to it, soldered, riveted or screwed.
  • an actuating tab 1 1 protrude from the clamping leg 5.
  • This actuating tab 1 1 can then be acted upon by an actuating tool, such as a screwdriver or preferably with a pivotable or linearly movable in an insulating housing actuator to shift the clamping leg 5 against the clamping force of the clamping spring 2 in the direction of plant leg 3.
  • an actuating tool such as a screwdriver or preferably with a pivotable or linearly movable in an insulating housing actuator to shift the clamping leg 5 against the clamping force of the clamping spring 2 in the direction of plant leg 3.
  • the plug-in direction of the electrical conductor to be clamped is defined not only by a conductor insertion opening in an insulating housing surrounding the spring terminal 1 insulating housing of a conductor terminal, but also by the clamping point with the adjoining at an angle to each other inclined clamping leg 5 and busbar.
  • the conductor insertion opening corresponds approximately to the width direction of the busbar 6, which can be seen in the side view, or the extension direction of the clamping leg 5 in the direction of the clamping edge 12 of the clamping spring 2 with open clamping point when the clamping leg 5 adjacent to the plant leg 3.
  • the base portion 10 extends from its free end to the bending portion 9 approximately in autismeinsteckutter L. It does not depend on the exact angular position of Portereinsteckutter L and direction of extension of the base portion 10. It is essential that the base portion 10 is not substantially transverse to the Porterereinsteckutter.
  • the frame member 7 is then bent from the plane of the base portion transversely to the Porterereinsteckutter L in the plane of the contact leg 3, so that the bending portion 9 is substantially transverse to the Porterereinsteckutter L and a rear through the clamping edges 12 of the clamping spring 2 and the Contact edge 13 of the busbar 6 formed clamping point lying conductor receiving space 14 in autismereinsteckutter L seen at the end by the bending section 9 is limited.
  • the holding section 8 then adjoins the beige section 9, which extends opposite to the conductor insertion direction L toward its free end. It will be appreciated that holding portion 8 and base portion 10 extend from the bending portion 9 to their respective free end opposite to the conductor insertion direction so as to form a section U-shaped frame member 7 with the bending portion 9.
  • the free end portion 16 of the holding part 8 connects.
  • This free end region 16 is offset by a bend from the plane of the first part 15 of the holding section 8.
  • the free end of the abutment leg 3 abuts against the inner side of the free end 16 of the holding section 8 facing the base section 10. Due to the offset of the planes of the plant leg 3 is then substantially in the same Level as the adjoining the bending portion 9 first part 15 of the holding section. 8
  • FIG. 2 shows a side sectional view of the spring terminal connection 1 from FIG. Beyond the design already described in FIG. 1, it becomes clear that the free end 16 of the holding section 8 has an embossed centering lug 17.
  • This centering lug 17 forms e.g. a circular nub protruding from the base portion 10 facing inner wall of the free end 16 of the holding portion 8 toward the base portion 10.
  • the centering lug 17 dips into a centering opening 18 corresponding to the centering lug 17 in the free end of the contact limb 3 of the clamping spring 2.
  • the plant leg 3 is fixed to the holding section 8.
  • the busbar seen in Leitereinsteckutter L in front of the wall in the area on the top has a recess 19 for receiving and guiding an electrical conductor to the clamping edge 12 formed by the clamping edge 12 and contact point.
  • FIG. 3 shows a perspective view of the spring-force clamping connection 1 from FIGS. 1 and 2. It is clear here that three clamping springs 2 are arranged in a row next to each other and spaced by a gap Z from each other. For the three clamping springs 2, a common bus bar 6 can be seen, which extends in the direction of arrangement of the clamping springs 2 and transversely to the conductor insertion direction L.
  • the frame member 7 is integrally formed from a sheet metal part for all three clamping springs 2.
  • a support plate 20 is provided, on which the busbar 6 auflagert and also extending transversely to the Porterereinsteckraum L and in the direction of arrangement of the clamping springs 2. From this common support plate 20 is for each clamping spring. 2 each from a base portion 10, which extends in autismeinsteckcardi L. To the base portions 10 is then followed in each case a bending section 9 in the manner described above, which merges into a holding section 8 at a distance from the respective base section 10.
  • FIG. 4 shows a side sectional view through a conductor connection terminal 21 with an insulating housing 22 into which the spring force clamping connection 1 described above is installed. It is clear that the insulating housing 22 has on the front side a spring terminal connection 1 and a conductor insertion opening 23 which defines the insertion direction L of an electrical conductor to be clamped in the main extension direction.
  • an actuating lever 24 is in each case mounted pivotably in the insulating housing 22 for each spring-force clamping connection 1.
  • the dipping into the insulating housing 22 portion of the actuating lever 24 is preferably located laterally next to the Federkraftklemman gleich to act in this manner via an actuating contour 25, the actuating tab 1 1 on the clamping leg 5 of the respectively associated clamping spring 2.
  • the clamping edge 12 of the clamping leg 5 is away from the busbar 6 upwards in the direction of the plant leg 3. siege to open in this way the nip formed by the clamping edge 12 and the contact edge 13.
  • an electrical conductor can be easily inserted into the conductor terminal 21 or a clamped electrical conductor can be removed.
  • the frame element 7 extending in the conductor insertion direction L delimits a conductor receiving space 14 up, down and behind behind the clamping point. As a result, a secure guidance of the stripped end of an inserted electrical conductor is ensured.
  • the frame element 7 causes the clamping spring 2 to be held in a positionally stable manner with respect to the bus bar 6, so that the spring force clamping connection 1 forms a self-supporting structure in which as few forces as possible act on the insulating material housing.
  • the actuating lever 24 is supported with its pivot bearing 24a on the base portion 10 of the frame member 7.
  • the insulating housing 22 is made in two parts and has a terminal housing part 28 and a lid part 27 latched to it.
  • the spring terminal connection 1 and the actuating lever 24 can first be installed in the terminal housing part 28 and the insulating housing 22 are then closed by snapping the lid member 27 on the terminal housing part 28.
  • FIG. 5 shows the conductor connection terminal 21 from FIG. 4 in the closed position.
  • the clamping point formed by the clamping edge 12 on the clamping leg 5 of the clamping spring 2 and by the contact edge 13 of the bus bar 6 is closed. In the illustrated position without trapped electrical conductors, the clamping edge 12 and the contact edge 13 adjoin one another.
  • the clamping leg 5 is pressed by the spring force of the clamping spring 2 in the direction of busbar 6.
  • the operating portion 25 of the Actuating lever 24 no longer acts on the actuating lug 1 1 of the clamping leg 5, so that the clamping leg 5 can now move unaffected by the operating lever 24 taking advantage of the spring force of the clamping spring 2.
  • the spring terminal 1 is self-supporting.
  • the clamping spring 2 exerts a directed against the busbar 6 clamping force, which is transmitted by support of the bus bar 6 on the base portion 10 of the frame member 7.
  • the opposing holding force of the clamping spring 2 is transmitted from the plant leg 3 to the holding section 8. Due to the relatively rigid embodiment of the frame member 7, the opposing forces are thus compensated via the frame member 7 and it is prevented that significant forces on the insulating material 22 act.

Abstract

A spring-loaded clamping connection (1) for clamping electrical conductors is described, said spring-loaded clamping connection having a clamping spring (2) and a bus bar (6). The clamping spring (2) has a contact limb (3), a spring arc (4) adjoining said contact limb (3) and a clamping limb (5) adjoining said spring arc (4). The clamping limb (5) has a clamping edge (12) for forming a clamping point with the adjacent bus bar (6) for a conductor to be clamped. The spring-loaded clamping connection (1) also has a frame element (7) which is a part separate from the clamping spring (2) with the bus bar (6) and which has a base portion (10), a curved portion (9) adjoining said base portion (10) and a retaining portion (8) adjoining said curved portion (9) and spaced from the base portion (10). The contact limb (3) of the clamping spring (2) is secured to the retaining portion (8). The retaining portion (8) extends in the extension of the direction of extension of the contact limb (3). The curved portion (9) limits, in the insertion direction (L) for a conductor to be clamped behind the clamping point, a conductor-accommodating chamber (14) for accommodating a free end of an electrical conductor. The base portion (10) extends from the curved portion (9) toward the free end of the base portion (10) counter to the insertion direction (L) for an electrical conductor to be clamped.

Description

Federkraftklemmanschluss und Leiteranschlussklemme  Spring terminal connection and conductor terminal
Die Erfindung betrifft eine Federkraftklemmanschluss zum Anklemmen elektrischer Leiter mit einer Klemmfeder und einer Stromschiene, wobei die Klemmfeder einen Anlageschenkel, einen sich an den Anlageschenkel anschließenden Federbogen und einen sich an den Federbogen anschließenden Klemmschenkel aufweist und der Klemmschenkel eine Klemmkante zur Bildung einer Klemmstelle mit der benachbarten Stromschiene für einen anzuklemmenden elektrischen Leiter hat. Der Federkraftklemmanschluss hat weiterhin ein Rahmenelement, das als ein von der Klemmfeder und der Stromschiene separates Teil ausgeführt ist und einen Basisabschnitt, einen sich an den Basisabschnitt anschließenden Biegeabschnitt und einen von dem Basisabschnitt beabstandeten Halteabschnitt hat. Der Anlageschenkel der Klemmfeder ist an dem Halteabschnitt festgelegt. The invention relates to a Federkraftklemmanschluss for clamping electrical conductors with a clamping spring and a busbar, wherein the clamping spring has a plant leg, a subsequent to the plant leg spring bow and a subsequent to the spring bow clamping leg and the clamping leg a clamping edge to form a nip with the adjacent Busbar for an electrical conductor to be clamped has. The spring clamp terminal further has a frame member which is formed as a separate part from the clamp spring and the bus bar and has a base portion, a bending portion adjoining the base portion, and a holding portion spaced from the base portion. The plant leg of the clamping spring is fixed to the holding section.
Die Erfindung betrifft weiterhin eine Leiteranschlussklemme mit einem Isolierstoffgehäuse und einem solchen Federkraftklemmanschluss in dem Isolierstoffgehäuse. The invention further relates to a conductor connection terminal with an insulating material housing and such a spring force clamping connection in the insulating material housing.
DE 10 2010 024 809 A1 offenbart eine Anschlussklemme mit einer Federklemmeinheit, die eine Klemmfeder und eine Stromschiene hat. An der Stromschiene können dann separate Bügel angebracht sein, die die Stromschiene untergreifen und am gegenüberliegenden Ende den Anlageschenkel an der Klemmfeder festlegen. Die Stromschiene erstreckt sich in Leitereinsteckrichtung und ist am Ende des Isolierstoffgehäuses umgefaltet, um eine Auffangtasche für das freie Ende eines einzusteckenden elektrischen Leiters zu schaffen. DE 10 2010 024 809 A1 discloses a terminal with a spring clamp unit which has a clamp spring and a bus bar. On the busbar separate brackets can then be attached, which engage under the busbar and set the plant leg on the clamping spring at the opposite end. The bus bar extends in the conductor insertion direction and is folded over at the end of the insulating housing to provide a free end receiving pocket of a male electrical conductor.
US 5,454,730 beschreibt eine Anschlussklemme mit U-förmig gebogener Klemmfeder, die in Leitereinsteckrichtung gesehen hinter der Klemmstelle in Richtung Stromschiene umgebogen ist und diese umgreift. Die Stromschiene ist vor der Klemmstelle nach oben in Richtung Federbogen der Klemmfeder umgebogen und hat ein in Leitereinsteckrichtung umgefaltetes freies Ende, an dem der Federbogen mit einem sich daran anschließenden Abschnitt des Anlageschenkels aufliegt. Damit wird eine selbsttragende Konstruktion geschaffen. No. 5,454,730 describes a connection terminal with a U-shaped bent clamping spring, seen in the conductor insertion direction behind the clamping point is bent in the direction of the busbar and this encompasses. The busbar is bent in front of the nip upwards in the direction of spring bow of the clamping spring and has a folded in Leiterereinsteckrichtung free end on which the spring bow rests with an adjoining portion of the plant leg. This creates a self-supporting construction.
Ausgehend hiervon ist es Aufgabe der vorliegenden Erfindung, einen verbesserten selbsttragenden Federkraftklemmanschluss zu schaffen. Based on this, it is the object of the present invention to provide an improved self-supporting spring force clamping connection.
Die Aufgabe wird durch den Federkraftklemmanschluss mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind in den Unteransprüchen beschrieben. The object is achieved by the spring force terminal connection with the features of claim 1. Advantageous embodiments are described in the subclaims.
Bei einem gattungsgemäßen Federkraftklemmanschluss mit als separates Teil ausgeführtem Rahmenelement wird vorgeschlagen, dass sich der Halteabschnitt in Verlängerung der Erstreckungsrichtung des Anlageschenkels erstreckt, der Biegeabschnitt in Einsteckrichtung eines anzuklemmenden Leiters hinter der Klemmstelle einen Leiteraufnahmeraum zur Aufnahme eines freien Endes des elektrischen Leiters begrenzt und sich der Basisabschnitt vom Biegeabschnitt zum freien Ende des Basisabschnitts hin entgegengesetzt zur Einsteckrichtung eines anzuklemmenden Leiters erstreckt. In a generic Federkraftklemmanschluss with executed as a separate part frame member is proposed that extends the holding portion in extension of the extension direction of the abutment leg, the bending portion in the insertion of a clamped conductor behind the nip a conductor receiving space for receiving a free end of the electrical conductor limited and the base portion extends from the bent portion to the free end of the base portion opposite to the insertion direction of a conductor to be clamped.
Im Unterschied zu einem herkömmlichen quer zur Erstreckungsrichtung einer Stromschiene verlaufenden Querbügel zum Festlegen einer Klemmfeder mit seinem Anlageschenkel an der Stromschiene verläuft das Rahmenelement in Verlängerung des Anlageschenkels. Das heißt, dass das separate Rahmenteil hinter der Klemmstelle einen Leiteraufnahmeraum bildet. Hierzu erstreckt sich der Basisabschnitt zum Biegeabschnitt hin in Leitereinsteckrichtung. Der Biegeabschnitt ist dann nach oben von der Stromschienenebene weg abgebogen und der sich daran anschließende Halteabschnitt erstreckt sich in der Haupterstreckungsrichtung des Anlageschenkels, so dass der Anlageschenkel durch den Halteabschnitt verlängert wird, und der Anlageschenkel dabei an dem Halteabschnitt festgelegt ist. In contrast to a conventional extending transversely to the direction of extension of a busbar transverse strap for fixing a clamping spring with its plant leg to the busbar, the frame element extends in extension of the plant leg. This means that the separate frame part forms a conductor receiving space behind the clamping point. For this purpose, the base section extends toward the bending section in the direction of conductor insertion. The bending section is then bent upwards away from the busbar plane and the adjoining Holding portion extends in the main extension direction of the abutment leg, so that the abutment leg is extended by the holding portion, and the abutment leg is fixed to the holding portion.
Ein solcher U-förmiger Rahmen ist dabei nicht einfach aus der Stromschiene einteilig ausgeformt. Gemäß der vorliegenden Erfindung wird der Rahmen durch ein von der Klemmschiene und der Stromschiene separates Teil, d.h. nicht integral mit der Stromschiene und/oder Klemmfeder gefertigt. Dies hat den Vorteil, dass für jedes funktionale Element das aus technischen und wirtschaftlichen Gründen optimale Material und die optimale Struktur gewählt werden kann. So ist die Stromschiene aus elektrisch sehr gut leitendem Material, insbesondere Kupfermaterial herzustellen, um eine gute Stromübertragung bei geringen Übertragungswiderständen sicherzustellen. Kupfermaterial ist sehr teuer und relativ weich. Die Klemmfeder hingegen ist aus Federblechmaterial herzustellen, das elektrisch weniger gut leitend als Kupferblech ist und federt. Für das Rahmenelement hingegen ist ein möglichst steifes, nicht federndes Material erforderlich. An das Rahmenelement wird keine Haupt-Anforderung an die elektrische Leitfähigkeit gestellt. Es sollte allerdings möglichst preiswert sein, da das Rahmenelement einen wesentlichen Beitrag zum Materialbedarf des Federkraftklemmanschlusses hat. Das Rahmenelement kann beispielsweise aus einem preiswerten einfachen Stahlblech gebildet sein. Such a U-shaped frame is not simply formed integrally from the busbar. According to the present invention, the frame is formed by a separate part from the clamping rail and the bus bar, i. not made integral with the busbar and / or clamping spring. This has the advantage that the optimum material and the optimal structure can be selected for each functional element for technical and economic reasons. Thus, the busbar of electrically very good conductive material, in particular copper material to produce to ensure good power transmission with low transmission resistance. Copper material is very expensive and relatively soft. The clamping spring, however, is made of spring steel sheet material, which is less electrically conductive than copper sheet and springs. For the frame element, however, the stiffest possible, non-resilient material is required. The frame element does not have a main requirement for electrical conductivity. However, it should be as inexpensive as possible, since the frame element has a significant contribution to the material requirements of the spring terminal connection. The frame member may be formed, for example, from a cheap simple steel sheet.
Auch wenn durch die Mehrteiligkeit der Montageaufwand und der Herstellungsaufwand höher ist, so bietet er dennoch wesentliche Vorteile hinsichtlich der Materialkosten und insbesondere im Hinblick darauf, dass das Rahmenelement durch optimale Materialauswahl sehr steif ausgebildet sein kann. Even if the assembly costs and the production outlay are higher due to the multi-part design, it nevertheless offers considerable advantages in terms of material costs and, in particular, with regard to the fact that the frame element can be designed to be very rigid due to optimum material selection.
Das Rahmenelement kann aus einem dickeren Material als das der Klemmfeder bestehen und ist nicht von der Klemmfederdicke abhängig. Im Bereich des Rahmenelementes bestehen geringere Anforderungen an die Festigkeit als im Bereich der Klemmfeder, so dass dort eine kostengünstigere Struktur verwendet werden kann. Da die Biegefestigkeit nicht linear von der Materialdicke abhängig ist bietet das separate Rahmenelement Freiheitsgrade in der Umsetzung. The frame member may be made of a thicker material than that of the clamping spring and is not dependent on the clamping spring thickness. in the Area of the frame member are lower demands on the strength than in the region of the clamping spring, so that there a more cost-effective structure can be used. Since the flexural strength is not linearly dependent on the material thickness, the separate frame element provides degrees of freedom in the implementation.
Mit dem Rahmenelement wird in Verlängerung der Stromschiene in Leitereinsteckrichtung ein Leiteraufnahmeraum gebildet, so dass das Rahmenelement nicht nur zum Halten und Festlegen des Anlageschenkels der Klemmfeder, sondern auch zur Führung des freien Endes eines an eine Klemmstelle angeklemmten elektrischen Leiters beim Einstecken in den Federkraftklemmanschluss beiträgt. With the frame element, a conductor receiving space is formed in extension of the busbar in Leiterereinsteckrichtung, so that the frame member not only contributes to holding and fixing the abutment leg of the clamping spring, but also to guide the free end of a terminal clamped to an electrical conductor during insertion into the Federkraftklemmanschluss.
Zur Festlegung des Anlageschenkels der Klemmfeder an dem Halteabschnitt hat der Halteabschnitt des separaten Rahmenelementes in einer bevorzugten Ausführungsform eine vorstehende Zentriernase, die in eine Zentrieröffnung des Anlageschenkels der Klemmfeder eintaucht. In order to fix the abutment leg of the clamping spring on the holding section, in a preferred embodiment the holding section of the separate frame element has a projecting centering nose which dips into a centering opening of the abutment leg of the clamping spring.
Die Zentriernase kann auf besonders einfache und preiswerte Weise z.B. als Einprägung aus dem Blechmaterial des Rahmenelementes ausgebildet sein. Hierzu wird beim Umformen des Blechmaterials zur Herstellung des Rahmenelementes mit einem Prägestempel Blechmaterial aus der Ebene des Rahmenelementes an der Unterseite herausgedrückt, um dort eine z.B. kreisförmige Zentriernase zu bilden. The centering nose can be removed in a particularly simple and inexpensive manner, e.g. be formed as an impression of the sheet material of the frame member. For this purpose, when forming the sheet material for the production of the frame member with a die punch sheet material is pushed out of the plane of the frame member at the bottom to there a. to form a circular centering nose.
Eine solche Einprägung kann im Herstellungsprozess z.B. vorgenommen werden, wenn am freien Ende des Halteabschnitts ein Parallelversatz zum sich an den Biegeabschnitt anschließenden Teil des Halteabschnitts geschaffen wird, so dass das freie Ende des Halteabschnitts den Anlageabschnitt übergreift und dabei der Anlageabschnitt in etwa auf der Ebene den sich an den Biegeabschnitt anschließenden Teils des Halteabschnitts definierten Ebene liegt. Alternativ oder zusätzlich zur Zentriernase des Halteabschnitts ist denkbar, dass der Anlageschenkel der Klemmfeder eine vorstehende Zentriernase hat, die in eine Zentrieröffnung des Halteabschnitts des Rahmenelementes eintaucht und die Klemmfeder an dem Halteabschnitt festlegt. Aufgrund der unterschiedlichen Materialien, wobei die Klemmfeder aus einem dünnen Federstahlmaterial und das Rahmenelement in der Regel aus einem dickeren leicht verformbaren Stahlblech geformt ist, bietet sich allerdings die Variante der Einbringung einer Zentriernase aus dem Such an impression can be made in the manufacturing process, for example, if at the free end of the holding portion, a parallel offset is created for adjoining the bending portion of the holding portion, so that the free end of the holding portion engages over the contact portion while the contact portion approximately in the plane Lying on the bending section subsequent part of the holding portion defined level. As an alternative or in addition to the centering lug of the holding section, it is conceivable that the abutment leg of the clamping spring has a projecting centering nose which dips into a centering opening of the holding section of the frame element and fixes the clamping spring on the holding section. Due to the different materials, wherein the clamping spring of a thin spring steel material and the frame member is usually formed of a thicker easily deformable steel sheet, however, offers the variant of introducing a centering nose of the
Blechmaterial des Rahmenelements an. Sheet metal of the frame element.
Alternativ oder zusätzlich zu den Zentriernasen kann der Anlageschenkel der Klemmfeder mit dem Halteabschnitt des Rahmenelementes verschweißt, verlötet, vernietet, verklemmt, verpresst, verklebt oder verschraubt sein. Andere Befestigungsmöglichkeiten des Anlageschenkels am Halteabschnitt des Rahmenelements sind denkbar, wobei in der Regel die unterschiedlichen Materialien von Rahmenelement und Klemmfeder berücksichtigt werden müssen. Alternatively or in addition to the centering lugs, the abutment leg of the clamping spring can be welded, soldered, riveted, clamped, pressed, glued or screwed to the holding section of the frame element. Other attachment possibilities of the abutment leg on the holding portion of the frame member are conceivable, which usually the different materials of frame member and clamping spring must be considered.
Der Anlageschenkel kann dabei auf der in Richtung Stromschiene weisenden Seite des Halteabschnitts angeordnet sein, so dass der Anlageschenkel innen liegend und das Rahmenelement außen liegend ist. Hierdurch wird eine selbsttragende Konstruktion unterstützt. Denkbar ist aber auch, dass sich der Anlageschenkel auf der Seite des Halteabschnitts an dem Halteabschnitt aufliegt, die der Stromschiene gegenüberliegt. Möglich ist auch, dass das freie Ende des Halteabschnitts aufgespreizt ist, um den Anlageschenkel zwischen zwei Gabeln des Halteabschnitts aufzunehmen. The plant leg can be arranged on the side facing in the direction of busbar side of the holding portion, so that the plant leg is lying on the inside and the frame member lying outside. This supports a self-supporting construction. It is also conceivable, however, that the contact leg rests on the side of the holding portion of the holding portion, which is opposite to the busbar. It is also possible that the free end of the holding portion is spread open to receive the plant leg between two forks of the holding portion.
In einer bevorzugten Ausführungsform liegt die Stromschiene auf dem Basisabschnitt des Rahmenelementes auf. Damit bildet das Rahmenelement nicht nur eine Halterung für den Anlageschenkel der Klemmfeder, sondern auch für die Stromschiene, so dass die Klemmkraft der Klemmfeder über einen eingesteckten elektrischen Leiter auf die Stromschiene wirkt und von dem darunter liegenden Basisabschnitt aufgefangen wird. In a preferred embodiment, the bus bar rests on the base portion of the frame element. Thus, the frame member forms not only a holder for the plant leg of the clamping spring, but also for the busbar, so that the clamping force of the clamping spring over an inserted electrical conductor acts on the busbar and is caught by the underlying base portion.
Durch die Nutzung des Basisabschnitts des Rahmenelements als Auflage für die Stromschiene kann der Basisabschnitt zusätzlich zur Stromschiene auch zur Stromübertragung und zur Kühlung beitragen. Auch wenn an die elektrische Leitfähigkeit des Rahmenelements keine Hauptanforderung gestellt wird, erlaubt die elektrische Leitfähigkeit des Rahmenelements eine Stromschiene mit kleinerem Querschnitt einzusetzen. Eine üblicherweise aus Elektrolyt-Kupfer gebildete Stromschiene hat eine wesentlich höhere Leitfähigkeit als einfacher Stahl und insbesondere als Federstahl. Bei der Ausbildung des Rahmenelements aus Stahl führt auch eine elektrische Leitfähigkeit von etwa 10 bis 20 % der Stromschiene auf Grund des anteilmäßig großen Querschnitts und der relativ großen Oberfläche zur einer hinreichenden Stromübertragung und Temperaturreduzierung, so dass die Stromschiene in einem kleineren Querschnitt ausgelegt werden kann. Das Auflagern der Stromschiene auf dem Basisabschnitt des Rahmenelements hat auch den Vorteil einer höheren Kurzschlusssicherheit, da das Rahmenelement eine im Vergleich zur Stromschiene wesentlich größere Masse an leitfähigem Material bereitstellt. By using the base portion of the frame member as a support for the busbar, the base portion in addition to the power rail can also contribute to power transmission and cooling. Even if no main requirement is placed on the electrical conductivity of the frame element, the electrical conductivity of the frame element allows a busbar with a smaller cross section to be used. A bus bar usually formed of electrolytic copper has a much higher conductivity than simple steel and in particular as spring steel. In the design of the frame member made of steel and an electrical conductivity of about 10 to 20% of the busbar due to the proportionately large cross section and the relatively large surface for a sufficient power transmission and temperature reduction, so that the busbar can be designed in a smaller cross section. The support of the busbar on the base portion of the frame member also has the advantage of a higher short circuit safety, since the frame member provides a much larger compared to the busbar mass of conductive material.
Besonders vorteilhaft ist es, wenn die Stromschieneneinbuchtungen zur Aufnahme und Führung eines elektrischen Leiters zur Klemmstelle hat. Diese Einbuchtungen sind vorzugsweise in Leitereinsteckrichtung gesehen vor der Klemmstelle angeordnet und dienen der verbesserten Führung eines elektrischen Leiters zur Klemmstelle und von dort durch das Rahmenelement umgrenzenden Leitereinsteckraums hinein. It is particularly advantageous if the busbar bumps for receiving and guiding an electrical conductor to the nip has. These indentations are preferably arranged in Leitereinsteckrichtung seen before the nip and serve the improved management of an electrical conductor to the nip and from there through the frame member delimiting Leitereinsteckraums.
Die Stromschiene liegt in einer bevorzugten Ausführungsform nicht einfach nur auf dem Basisabschnitt auf, sondern ist an dem Basisabschnitt festgelegt. Damit würde eine Einheit des aus unterschiedlichen Materialien gebildeten Rahmenelements und Stromschiene geschaffen. Zum Öffnen einer durch die Klemmfeder und die Stromschiene gebildeten Klemmstelle hat der Klemmschenkel bevorzugt mindestens eine seitlich am Randbereich des Klemmschenkels angeordnete Betätigungslasche. Diese kann dann mit einem Betätigungswerkzeug, mit einem in einem Isolierstoffgehäuse eingebauten schwenkbar gelagerten Betätigungshebel oder mit einem linear verschiebbaren Betätigungsdrücker mit einer Betätigungskraft beaufschlagt werden. Hierdurch wird der Klemmschenkel zum Öffnen der Klemmstelle von der Stromschiene weg bewegt. In a preferred embodiment, the busbar is not simply located on the base section, but is fixed to the base section. This would create a unity of the frame element formed from different materials and busbar. To open a clamping point formed by the clamping spring and the busbar, the clamping leg preferably has at least one actuating lug arranged laterally on the edge region of the clamping leg. This can then be acted upon with an actuating tool, with a built-in insulating material in a pivotally mounted actuating lever or with a linearly displaceable actuating handle with an actuating force. As a result, the clamping leg is moved to open the nip of the busbar away.
Die Aufgabe wird weiterhin durch eine Leiteranschlussklemme mit einem Isolierstoffgehäuse gelöst, in das ein oben beschriebener Federkraft- klemmanschluss eingebaut ist. The object is further achieved by a conductor terminal with an insulating material housing, in which a spring-force clamp connection described above is installed.
Die Erfindung wird nachfolgend anhand der beigefügten Zeichnungen näher erläutert. Es zeigen: The invention will be explained in more detail with reference to the accompanying drawings. Show it:
Figur 1 - Seitenansicht eines Federkraftklemmanschlusses; Figure 1 - side view of a Federkraftklemmanschlusses;
Figur 2 - Seiten-Schnittansicht des Federkraftklemmanschlusses aus Figur 1 ; Figure 2 - side sectional view of the spring terminal connection of Figure 1;
Figur 3 - perspektivische Ansicht des Federkraftklemmanschlusses aus Figuren 1 und 2; Figure 3 - perspective view of the spring terminal connection of Figures 1 and 2;
Figur 4 - Seiten-Schnittansicht einer Leiteranschlussklemme mit einem in einem Isolierstoffgehäuse eingebauten Federkraftklemmanschlusses aus Figuren 1 bis 3 mit geöffnetem Betätigungshebel; Figure 4 - side sectional view of a conductor terminal with a built-in an insulating housing spring terminal connection of Figures 1 to 3 with the operating lever open;
Figur 5 - Seiten-Schnittansicht einer Leiteranschlussklemme mit einem in einem Isolierstoffgehäuse eingebauten Federkraftklemmanschlusses aus Figuren 1 bis 3 mit geschlossenem Betätigungshebel. Figure 5 - side sectional view of a conductor terminal with a built-in an insulating housing spring terminal connection of Figures 1 to 3 with a closed actuating lever.
Figur 1 lässt eine Seitenansicht eines Federkraftklemmanschlusses 1 erkennen, der aus drei Teilen gebildet ist. Der Federkraftklemmanschluss 1 hat eine Klemmfeder 2 aus einem Federstahlblech. Federstahl ist ein Stahl mit erhöhter Festigkeit, d.h. einer gegenüber z.B. Baustahl signifikant erhöhten Elastizitätsgrenze. Das Verhältnis von Streckgrenze zur Zugfestigkeit liegt bei Federstählen üblicherweise im Bereich von mehr als 85%. Die Klemmfedern werden z.B. aus Chrom-Nickel-Federstahl, d.h. aus einer Chrom- und Nickel-enthaltenden Legierung hergestellt. Die Klemmfeder 2 ist im Prinzip U-förmig ausgeformt und hat einen Anlageschenkel 3, ein sich hieran anschließenden Federbogen 4 und einen sich an den Federbogen 4 anschließenden Klemmschenkel 5. Der Klemmschenkel 5 wird durch die Kraft der Klemmfeder 2, insbesondere durch den Federbogen 4 aufgebracht wird, vom Anlageschenkel 3 weg in Richtung einer Stromschiene 6 gedrückt. Die Stromschiene 6 ist das zweite Teil des Federkraftklemmanschlusses 1 . Sie ist üblicherweise aus Elektrolyt-Kupfermaterial gebildet und vorzugsweise verzinnt. Damit wird eine gute elektrische Stromleitfähigkeit bei geringen Übergangswiderständen sichergestellt. FIG. 1 shows a side view of a spring-force clamping connection 1, which is formed from three parts. The spring terminal connection 1 has a clamping spring 2 made of a spring steel sheet. Spring steel is a steel with increased strength, ie a significantly higher elastic limit compared to, for example, structural steel. The ratio of yield strength to tensile strength in spring steels is usually in the range of more than 85%. The clamping springs are made, for example, from chrome-nickel spring steel, ie from a chromium and nickel-containing alloy. The clamping spring 2 is formed in principle U-shaped and has a plant leg 3, an adjoining spring bow 4 and a subsequent to the spring bow 4 clamping leg 5. The clamping leg 5 is is applied by the force of the clamping spring 2, in particular by the spring bow 4, pressed away from the plant leg 3 in the direction of a bus bar 6. The bus bar 6 is the second part of the spring terminal connection. 1 It is usually formed of electrolyte-copper material and preferably tin-plated. This ensures a good electrical conductivity with low contact resistance.
Der Federkraftklemmanschluss 1 hat weiterhin ein als separates Teil zur Klemmfeder 2 und der Stromschiene 6 ausgebildetes Rahmenelement 7. Dieses ist z.B. aus einem Stahlblech ausgeführt. Das Blechmaterial sollte möglichst steif sein und im Unterschied zur Klemmfeder 2 eine möglichst geringe Elastizität aufweisen. Das Rahmenelement 7 ist bevorzugt aus einem sogenannten Grundstahl hergestellt, der niedrig legiert und nur teilweise wärmebehandelt ist. Denkbar ist aber auch, dass das Rahmenelement 7 aus einem Werkzeugstahl oder ähnlichem oder unter Umständen auch aus Faserverbundmaterial oder ähnlichem geschaffen wird. Es sollte jedenfalls möglichst biegesteif sein, so dass auch beim Einklemmen eines elektrischen Leiters und einem hierdurch verursachten Federkraftdruck das Rahmenelement 7 nicht aufgeweitet wird. The spring force clamping connection 1 furthermore has a frame element 7 designed as a separate part for the clamping spring 2 and the busbar 6. made of a sheet steel. The sheet material should be as stiff as possible and in contrast to the clamping spring 2 have the lowest possible elasticity. The frame element 7 is preferably made of a so-called base steel, which is low alloyed and only partially heat treated. It is also conceivable that the frame member 7 is made of a tool steel or the like or possibly also made of fiber composite material or the like. In any case, it should be as rigid as possible, so that even when clamping an electrical conductor and a spring force pressure caused thereby, the frame member 7 is not expanded.
Das Rahmenelement 7 kann vorzugsweise aus einem dickeren Material als die Klemmfeder 2 bestehen und ist nicht von der Dicke der Klemmfeder 2 abhängig. Damit sind höhere Festigkeiten im Vergleich zur Nutzung von Federstahl ohne höheren Aufwand möglich. Da die Biegefestigkeit nicht linear von der Materialdicke abhängig ist, bietet das separate Rahmenelement 7 Freiheitsgrade in der Umsetzung unabhängig von der Auslegung der Klemmfeder 2 im Hinblick auf die Federeigenschaften und unabhängig von der Auslegung der Stromschiene 6 im Hinblick auf die Stromübertragungscharakteristik. The frame member 7 may preferably consist of a thicker material than the clamping spring 2 and is not dependent on the thickness of the clamping spring 2. Thus, higher strengths compared to the use of spring steel are possible without much effort. Since the flexural strength is not linearly dependent on the material thickness, the separate frame member 7 offers degrees of freedom in the implementation regardless of the design of the clamp spring 2 in terms of spring characteristics and regardless of the design of the bus bar 6 in terms of power transmission characteristic.
Das Rahmenelement 7 hat eine sich in Verlängerung der Erstreckungs- richtung des Anlageschenkels 3 erstreckenden Halteabschnitt 8, an dem der Anlageschenkel 3 der Klemmfeder 2 festgelegt ist. An dem Halteabschnitt 8 schließt sich ein Biegeabschnitt 9 an, der z.B. mit zwei Biegungen bzw. Knicken nach unten in Richtung der Ebene der Stromschiene 6 umgefaltet ist. An dem Biegeabschnitt 9 schließt sich ein Basisabschnitt 10 an. Der Basisabschnitt 10 untergreift mit seinem freien Ende die Stromschiene 6, die auf diese Weise auf dem Basisabschnitt 10 ruht. Die Stromschiene 6 kann dabei auch an dem Basisabschnitt 10 festgelegt sein, indem die Stromschiene 6 in das freie Ende des Basisabschnitts 10 eingehängt, mit diesem verschweißt, verlötet, vernietet oder verschraubt ist. The frame element 7 has a holding section 8 extending in an extension of the extension direction of the abutment leg 3, on which the plant leg 3 of the clamping spring 2 is fixed. At the holding portion 8, a bending section 9 connects, which is folded over, for example, with two bends or creases down in the direction of the plane of the bus bar 6. At the bending portion 9, a base portion 10 connects. The base portion 10 engages with its free end of the bus bar 6, which rests in this way on the base portion 10. The busbar 6 can also be fixed to the base portion 10 by the busbar 6 mounted in the free end of the base portion 10, welded to it, soldered, riveted or screwed.
Weiterhin kann in einem seitlichen Bereich des Klemmschenkels 5 der Klemmfeder 2 eine Betätigungslasche 1 1 von dem Klemmschenkel 5 ab- ragen. Diese Betätigungslasche 1 1 kann dann mit einem Betätigungswerkzeug, wie beispielsweise einem Schraubendreher oder bevorzugt mit einem in einem Isolierstoffgehäuse schwenkbar oder linear bewegbaren Betätigungselement beaufschlagt werden, um den Klemmschenkel 5 entgegen der Klemmkraft der Klemmfeder 2 in Richtung Anlageschenkel 3 zu verlagern. Damit wird eine zwischen einer Klemmkante 12 am freien Ende des Klemmschenkels 5 und einer Kontaktkante 13 an der Stromschiene 6 gebildete Klemmstelle zum Anklemmen eines elektrischen Leiters geöffnet, so dass ein angeklemmter elektrischer Leiter dem Federkraftklemm- anschluss 1 entnommen werden kann. Furthermore, in a lateral region of the clamping leg 5 of the clamping spring 2 an actuating tab 1 1 protrude from the clamping leg 5. This actuating tab 1 1 can then be acted upon by an actuating tool, such as a screwdriver or preferably with a pivotable or linearly movable in an insulating housing actuator to shift the clamping leg 5 against the clamping force of the clamping spring 2 in the direction of plant leg 3. Thus, a clamping point formed between a clamping edge 12 at the free end of the clamping leg 5 and a contact edge 13 on the bus bar 6 is opened for clamping an electrical conductor, so that a clamped electrical conductor can be removed from the spring force clamping connection 1.
Die Einsteckrichtung des anzuklemmenden elektrischen Leiters wird nicht nur durch eine Leitereinführungsöffnung in einem dem Federkraftklemm- anschluss 1 umgebenden Isolierstoffgehäuse einer Leiteranschlussklemme definiert, sondern auch durch die Klemmstelle mit den sich daran anschließenden im Winkel zueinander geneigten Klemmschenkel 5 und Stromschiene. So entspricht die Leitereinführungsöffnung in etwa der in der Seitenansicht erkennbaren Breitenrichtung der Stromschiene 6 oder der Erstreckungsrichtung des Klemmschenkels 5 in Richtung Klemmkante 12 der Klemmfeder 2 bei geöffneter Klemmstelle, wenn der Klemmschenkel 5 an den Anlageschenkel 3 angrenzt. The plug-in direction of the electrical conductor to be clamped is defined not only by a conductor insertion opening in an insulating housing surrounding the spring terminal 1 insulating housing of a conductor terminal, but also by the clamping point with the adjoining at an angle to each other inclined clamping leg 5 and busbar. Thus, the conductor insertion opening corresponds approximately to the width direction of the busbar 6, which can be seen in the side view, or the extension direction of the clamping leg 5 in the direction of the clamping edge 12 of the clamping spring 2 with open clamping point when the clamping leg 5 adjacent to the plant leg 3.
Deutlich wird, dass sich der Basisabschnitt 10 von seinem freien Ende zum Biegeabschnitt 9 hin in etwa in Leitereinsteckrichtung L erstreckt. Dabei kommt es nicht auf die genaue Winkelstellung von Leitereinsteckrichtung L und Erstreckungsrichtung des Basisabschnitts 10 an. Wesentlich ist, dass der Basisabschnitt 10 nicht wesentlich quer zur Leitereinsteckrichtung steht. It is clear that the base portion 10 extends from its free end to the bending portion 9 approximately in Leitereinsteckrichtung L. It does not depend on the exact angular position of Leitereinsteckrichtung L and direction of extension of the base portion 10. It is essential that the base portion 10 is not substantially transverse to the Leiterereinsteckrichtung.
Im Biegeabschnitt 9 ist das Rahmenelement 7 dann von der Ebene des Basisabschnitts quer zur Leitereinsteckrichtung L in die Ebene des Anlageschenkels 3 hoch gebogen, so dass der Biegeabschnitt 9 im Wesentlichen quer zur Leitereinsteckrichtung L steht und einen hinter durch die Klemmkanten 12 der Klemmfeder 2 und der Kontaktkante 13 der Stromschiene 6 gebildeten Klemmstelle liegender Leiteraufnahmeraum 14 in Leitereinsteckrichtung L gesehen am Ende durch den Biegeabschnitt 9 begrenzt ist. An dem Beigeabschnitt 9 schließt sich dann der Halteabschnitt 8 an, der sich entgegengesetzt zur Leitereinsteckrichtung L zu seinem freien Ende hin erstreckt. Deutlich wird, dass sich Halteabschnitt 8 und Basisabschnitt 10 von dem Biegeabschnitt 9 zu ihrem jeweiligen freien Ende sich entgegengesetzt zur Leitereinsteckrichtung erstrecken, um so mit dem Biegeabschnitt 9 ein im Schnitt U-förmiges Rahmenelement 7 zu bilden. In the bending section 9, the frame member 7 is then bent from the plane of the base portion transversely to the Leiterereinsteckrichtung L in the plane of the contact leg 3, so that the bending portion 9 is substantially transverse to the Leiterereinsteckrichtung L and a rear through the clamping edges 12 of the clamping spring 2 and the Contact edge 13 of the busbar 6 formed clamping point lying conductor receiving space 14 in Leiterereinsteckrichtung L seen at the end by the bending section 9 is limited. The holding section 8 then adjoins the beige section 9, which extends opposite to the conductor insertion direction L toward its free end. It will be appreciated that holding portion 8 and base portion 10 extend from the bending portion 9 to their respective free end opposite to the conductor insertion direction so as to form a section U-shaped frame member 7 with the bending portion 9.
Von dem sich an dem Biegeabschnitt 9 anschließenden ersten Teil 15 des Halteabschnitts 8 schließt sich der freie Endbereich 16 des Halteteils 8 an. Dieser freie Endbereich 16 ist durch eine Biegung von der Ebene des ersten Teils 15 des Halteabschnitts 8 versetzt. Das freie Ende des Anlageschenkels 3 liegt an der dem Basisabschnitt 10 zugewandten Innenseite des freien Endes 16 des Halteabschnitts 8 an. Durch den Versatz der Ebenen liegt der Anlageschenkel 3 dann im Wesentlichen in der gleichen Ebene wie der sich an den Biegeabschnitt 9 anschließende erste Teil 15 des Halteabschnitts 8. Of the adjoining the bending portion 9 first part 15 of the holding portion 8, the free end portion 16 of the holding part 8 connects. This free end region 16 is offset by a bend from the plane of the first part 15 of the holding section 8. The free end of the abutment leg 3 abuts against the inner side of the free end 16 of the holding section 8 facing the base section 10. Due to the offset of the planes of the plant leg 3 is then substantially in the same Level as the adjoining the bending portion 9 first part 15 of the holding section. 8
Figur 2 lässt eine Seiten-Schnittansicht des Federkraftklemmanschlusses 1 aus Figur 1 erkennen. Über die in Figur 1 bereits beschriebene Gestaltung hinaus wird deutlich, dass das freie Ende 16 des Halteabschnitts 8 eine eingeprägte Zentriernase 17 hat. Diese Zentriernase 17 bildet z.B. einen kreisförmigen Noppen, der von dem Basisabschnitt 10 zugewandten Innenwand des freien Endes 16 des Halteabschnitts 8 in Richtung Basisabschnitt 10 vorragt. Die Zentriernase 17 taucht dabei in eine zur Zentriernase 17 korrespondierende Zentrieröffnung 18 im freien Ende des Anlageschenkels 3 der Klemmfeder 2 ein. Damit wird der Anlageschenkel 3 an dem Halteabschnitt 8 festgelegt. FIG. 2 shows a side sectional view of the spring terminal connection 1 from FIG. Beyond the design already described in FIG. 1, it becomes clear that the free end 16 of the holding section 8 has an embossed centering lug 17. This centering lug 17 forms e.g. a circular nub protruding from the base portion 10 facing inner wall of the free end 16 of the holding portion 8 toward the base portion 10. The centering lug 17 dips into a centering opening 18 corresponding to the centering lug 17 in the free end of the contact limb 3 of the clamping spring 2. Thus, the plant leg 3 is fixed to the holding section 8.
Weiterhin ist erkennbar, dass die Stromschiene in Leitereinsteckrichtung L gesehen vor der Wand im Bereich auf der Oberseite eine Einbuchtung 19 zur Aufnahme und Führung eines elektrischen Leiters zur durch die Klemmkante 12 und Kontaktkante 13 gebildeten Klemmstelle hat. Furthermore, it can be seen that the busbar seen in Leitereinsteckrichtung L in front of the wall in the area on the top has a recess 19 for receiving and guiding an electrical conductor to the clamping edge 12 formed by the clamping edge 12 and contact point.
Figur 3 lässt eine perspektivische Ansicht des Federkraftklemmanschlusses 1 aus den Figuren 1 und 2 erkennen. Deutlich wird hierbei, dass drei Klemmfedern 2 in einer Reihe nebeneinander und durch einen Zwischenraum Z voneinander beabstandet angeordnet sind. Für die drei Klemmfedern 2 ist eine gemeinsame Stromschiene 6 erkennbar, die sich in Anreihrichtung der Klemmfedern 2 und quer zur Leitereinsteckrichtung L erstreckt. FIG. 3 shows a perspective view of the spring-force clamping connection 1 from FIGS. 1 and 2. It is clear here that three clamping springs 2 are arranged in a row next to each other and spaced by a gap Z from each other. For the three clamping springs 2, a common bus bar 6 can be seen, which extends in the direction of arrangement of the clamping springs 2 and transversely to the conductor insertion direction L.
Auch das Rahmenelement 7 ist für alle drei Klemmfedern 2 einteilig aus einem Blechteil ausgeformt. Hierbei ist eine Auflageplatte 20 vorgesehen, auf der die Stromschiene 6 auflagert und die sich ebenfalls quer zur Leitereinsteckrichtung L und in Anreihrichtung der Klemmfedern 2 erstreckt. Von dieser gemeinsamen Auflageplatte 20 geht für jede Klemmfeder 2 jeweils ein Basisabschnitt 10 ab, der sich in Leitereinsteckrichtung L erstreckt. An die Basisabschnitte 10 schließt sich dann jeweils ein Biegeabschnitt 9 in oben beschriebener Weise an, der im Abstand zum jeweiligen Basisabschnitt 10 in einen Halteabschnitt 8 übergeht. Also, the frame member 7 is integrally formed from a sheet metal part for all three clamping springs 2. Here, a support plate 20 is provided, on which the busbar 6 auflagert and also extending transversely to the Leiterereinsteckrichtung L and in the direction of arrangement of the clamping springs 2. From this common support plate 20 is for each clamping spring. 2 each from a base portion 10, which extends in Leitereinsteckrichtung L. To the base portions 10 is then followed in each case a bending section 9 in the manner described above, which merges into a holding section 8 at a distance from the respective base section 10.
Durch die Bereitstellung jeweils eines separaten Basisabschnitts 10, Biegeabschnitts 9 und Halteabschnitts 8 für jede Klemmfeder 2 wird erreicht, dass diese Abschnitte mit einem Zwischenraum Z voneinander beabstandet sind. Der Zwischenraum Z kann dann zur Aufnahme einer von Teilen eines Betätigungselementes genutzt werden. By providing in each case a separate base section 10, bending section 9 and holding section 8 for each clamping spring 2, it is achieved that these sections are spaced apart from each other by a gap Z. The gap Z can then be used to hold one of parts of an actuator.
Andernfalls ist aber auch denkbar, dass für die mehreren Klemmfedern 2 nur ein gemeinsamer Basisabschnitt 10, Biegeabschnitt 9 und Halteabschnitt 8 vorgesehen ist. Otherwise, however, it is also conceivable that only one common base section 10, bending section 9 and holding section 8 is provided for the plurality of clamping springs 2.
Figur 4 lässt eine Seiten-Schnittansicht durch eine Leiteranschlussklemme 21 mit einem Isolierstoffgehäuse 22 erkennen, in das der oben beschriebene Federkraftklemmanschluss 1 eingebaut ist. Deutlich wird, dass das Isolierstoffgehäuse 22 frontseitig einen Federkraftklemmanschluss 1 und eine Leitereinführungsöffnung 23 hat, der in Haupterstreckungsrichtung die Einsteckrichtung L eines anzuklemmenden elektrischen Leiters definiert. FIG. 4 shows a side sectional view through a conductor connection terminal 21 with an insulating housing 22 into which the spring force clamping connection 1 described above is installed. It is clear that the insulating housing 22 has on the front side a spring terminal connection 1 and a conductor insertion opening 23 which defines the insertion direction L of an electrical conductor to be clamped in the main extension direction.
Erkennbar ist, dass ein Betätigungshebel 24 für jeden Federkraftklemmanschluss 1 jeweils schwenkbar in dem Isolierstoffgehäuse 22 gelagert ist. Der in das Isolierstoffgehäuse 22 eintauchende Abschnitt des Betätigungshebels 24 liegt dabei vorzugsweise seitlich neben dem Federkraftklemmanschluss, um auf diese Weise über eine Betätigungskontur 25 die Betätigungslasche 1 1 am Klemmschenkel 5 der jeweils zugeordneten Klemmfeder 2 zu beaufschlagen. In der dargestellten Offenstellung des Betätigungshebels 24 ist die Klemmkante 12 des Klemmschenkels 5 von der Stromschiene 6 weg nach oben in Richtung Anlageschenkel 3 verla- gert, um auf diese Weise die durch die Klemmkante 12 und die Kontaktkante 13 gebildete Klemmstelle zu öffnen. Damit kann ein elektrischer Leiter leicht in die Leiteranschlussklemme 21 eingeführt oder ein angeklemmter elektrischer Leiter entnommen werden. It can be seen that an actuating lever 24 is in each case mounted pivotably in the insulating housing 22 for each spring-force clamping connection 1. The dipping into the insulating housing 22 portion of the actuating lever 24 is preferably located laterally next to the Federkraftklemmanschluss to act in this manner via an actuating contour 25, the actuating tab 1 1 on the clamping leg 5 of the respectively associated clamping spring 2. In the illustrated open position of the actuating lever 24, the clamping edge 12 of the clamping leg 5 is away from the busbar 6 upwards in the direction of the plant leg 3. siege to open in this way the nip formed by the clamping edge 12 and the contact edge 13. Thus, an electrical conductor can be easily inserted into the conductor terminal 21 or a clamped electrical conductor can be removed.
Deutlich wird, dass das sich in Leitereinsteckrichtung L erstreckende Rahmenelement 7 hinter der Klemmstelle einen Leiteraufnahmeraum 14 nach oben, unten und hinten begrenzt. Dadurch wird eine sichere Führung auch des abisolierten Endes eines eingesteckten elektrischen Leiters sichergestellt. Gleichzeitig wird durch das Rahmenelement 7 bewirkt, dass die Klemmfeder 2 lagestabil in Bezug auf die Stromschiene 6 gehalten ist, so dass der Federkraftklemmanschluss 1 eine selbsttragende Struktur bildet, bei der möglichst wenige Kräfte auf das Isolierstoffgehäuse wirken. Vorteilhaft stützt sich dabei der Betätigungshebel 24 mit seinem Schwenklager 24a auf dem Basisabschnitt 10 des Rahmenelements 7 ab. It is clear that the frame element 7 extending in the conductor insertion direction L delimits a conductor receiving space 14 up, down and behind behind the clamping point. As a result, a secure guidance of the stripped end of an inserted electrical conductor is ensured. At the same time, the frame element 7 causes the clamping spring 2 to be held in a positionally stable manner with respect to the bus bar 6, so that the spring force clamping connection 1 forms a self-supporting structure in which as few forces as possible act on the insulating material housing. Advantageously, the actuating lever 24 is supported with its pivot bearing 24a on the base portion 10 of the frame member 7.
Erkennbar ist weiterhin, dass das Isolierstoffgehäuse 22 zweiteilig ausgeführt ist und ein Klemmengehäuseteil 28 und ein mit diesem verrastetes Deckelteil 27 hat. Damit kann der Federkraftklemmanschluss 1 und der Betätigungshebel 24 zunächst in das Klemmengehäuseteil 28 eingebaut und das Isolierstoffgehäuse 22 dann durch Aufrasten des Deckelteils 27 auf das Klemmengehäuseteil 28 verschlossen werden. It can also be seen that the insulating housing 22 is made in two parts and has a terminal housing part 28 and a lid part 27 latched to it. Thus, the spring terminal connection 1 and the actuating lever 24 can first be installed in the terminal housing part 28 and the insulating housing 22 are then closed by snapping the lid member 27 on the terminal housing part 28.
Figur 5 lässt die Leiteranschlussklemme 21 aus Figur 4 in der Schließstellung erkennen. Dabei ist die durch die Klemmkante 12 an dem Klemmschenkel 5 der Klemmfeder 2 und durch die Kontaktkante 13 der Stromschiene 6 gebildete Klemmstelle geschlossen. In der dargestellten Position ohne eingeklemmten elektrischen Leiter grenzen die Klemmkante 12 und die Kontaktkante 13 aneinander an. FIG. 5 shows the conductor connection terminal 21 from FIG. 4 in the closed position. The clamping point formed by the clamping edge 12 on the clamping leg 5 of the clamping spring 2 and by the contact edge 13 of the bus bar 6 is closed. In the illustrated position without trapped electrical conductors, the clamping edge 12 and the contact edge 13 adjoin one another.
Hierbei wird der Klemmschenkel 5 durch die Federkraft der Klemmfeder 2 in Richtung Stromschiene 6 gedrückt. Der Betätigungsabschnitt 25 des Betätigungshebels 24 wirkt dabei nicht mehr auf die Betätigungslasche 1 1 des Klemmschenkels 5, so dass sich der Klemmschenkel 5 nunmehr un- beeinflusst durch den Betätigungshebel 24 unter Ausnutzung der Federkraft der Klemmfeder 2 bewegen kann. Here, the clamping leg 5 is pressed by the spring force of the clamping spring 2 in the direction of busbar 6. The operating portion 25 of the Actuating lever 24 no longer acts on the actuating lug 1 1 of the clamping leg 5, so that the clamping leg 5 can now move unaffected by the operating lever 24 taking advantage of the spring force of the clamping spring 2.
Deutlich wird, dass der Federkraftklemmanschluss 1 dabei selbsttragend ist. die Klemmfeder 2 übt dabei eine gegen die Stromschiene 6 gerichtete Klemmkraft auf, die durch Auflage der Stromschiene 6 auf den Basisabschnitt 10 des Rahmenelementes 7 übertragen wird. Die gegengerichtete Haltekraft der Klemmfeder 2 wird von dem Anlageschenkel 3 auf den Halteabschnitt 8 übertragen. Durch die relativ starre Ausführungsform des Rahmenelements 7 werden die gegenläufigen Kräfte damit über das Rahmenelement 7 kompensiert und es wird verhindert, dass wesentliche Kräfte auf das Isolierstoffgehäuse 22 wirken. It is clear that the spring terminal 1 is self-supporting. the clamping spring 2 exerts a directed against the busbar 6 clamping force, which is transmitted by support of the bus bar 6 on the base portion 10 of the frame member 7. The opposing holding force of the clamping spring 2 is transmitted from the plant leg 3 to the holding section 8. Due to the relatively rigid embodiment of the frame member 7, the opposing forces are thus compensated via the frame member 7 and it is prevented that significant forces on the insulating material 22 act.

Claims

Patentansprüche: claims:
1 . Federkraftklemmanschluss (1 ) zum Anklemmen elektrischer Leiter mit einer Klemmfeder (2) und mit einer Stromschiene (6), wobei die Klemmfeder (2) einen Anlageschenkel (3), einen sich an den Anlageschenkel (3) anschließenden Federbogen (4) und einen sich an den Federbogen (4) anschließenden Klemmschenkel (5) aufweist und der Klemmschenkel (5) eine Klemmkante (12) zur Bildung einer Klemmstelle mit der benachbarten Stromschiene (6) für einen anzuklemmenden Leiter hat, wobei der Federkraftklemmanschluss (1 ) weiterhin ein Rahmenelement (7) hat, das als ein von der Klemmfeder (2) und der Stromschiene (6) separates Teil ausgeführt ist und einen Basisabschnitt (10), einen sich an dem Basisabschnitt (10) anschließenden Biegeabschnitt (9) und einen sich an den Biegeabschnitt (9) anschließenden und von dem Basisabschnitt (10) beabstandeten Halteabschnitt (8) hat, wobei der Anlageschenkel (3) der Klemmfeder (2) an dem Halteabschnitt (8) festgelegt ist, dadurch gekennzeichnet, dass sich der Halteabschnitt (8) in Verlängerung der Erstreckungsrichtung des Anlageschenkels (3) erstreckt, der Biegeabschnitt (9) in Einsteckrichtung (L) eines anzuklemmenden Leiters hinter der Klemmstelle einen Leiteraufnahmeraum (14) zur Aufnahme eines freien Endes des elektrischen Leiters begrenzt und sich der Basisabschnitt (10) vom Biegeabschnitt (9) zum freien Ende des Basisabschnitts (10) hin entgegengesetzt zur Einsteckrichtung (L) eines anzuklemmenden Leiters erstreckt. 1 . Spring terminal connection (1) for clamping electrical conductors with a clamping spring (2) and with a busbar (6), wherein the clamping spring (2) an abutment leg (3), an adjoining the plant leg (3) spring bow (4) and a has clamping leg (5) adjoining the spring bow (4) and the clamping leg (5) has a clamping edge (12) for forming a nip with the adjacent bus bar (6) for a conductor to be clamped, the spring terminal connection (1) furthermore being a frame element ( 7), which is designed as a part which is separate from the clamping spring (2) and the busbar (6) and has a base section (10), a bending section (9) adjoining the base section (10) and a bendable section (10). 9) adjoining and spaced from the base portion (10) holding portion (8), wherein the abutment leg (3) of the clamping spring (2) on the holding portion (8) is fixed, characterized in that the Holding portion (8) extends in extension of the extension direction of the abutment leg (3), the bending portion (9) in the insertion direction (L) of a conductor to be clamped behind the nip a conductor receiving space (14) for receiving a free end of the electrical conductor limited and the base portion ( 10) extends from the bending section (9) towards the free end of the base section (10) opposite to the insertion direction (L) of a conductor to be clamped.
2. Federkraftklemmanschluss (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Anlageschenkel (3) der Klemmfeder (2) an dem Halteabschnitt (8) des Rahmenelements (7) durch Verschweißen, Verlöten, Vernieten, Verklemmen, Verpressen, Verkleben oder Verschrauben festgelegt ist. Federkraftklemmanschluss (1 ) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Halteabschnitt (8) des Rahmenelementes (7) eine vorstehende Zentriernase (17) hat, die in eine Zentrieröffnung (18) des Anlageschenkels (3) der Klemmfeder (2) eintaucht und die Klemmfeder (2) an dem Halteabschnitt (8) festlegt. 2. Spring terminal connection (1) according to any one of the preceding claims, characterized in that the abutment leg (3) of the clamping spring (2) on the holding portion (8) of the frame member (7) by welding, soldering, riveting, jamming, pressing, gluing or Screwing is set. Spring terminal connection (1) according to claim 1 or 2, characterized in that the holding portion (8) of the frame element (7) has a projecting centering lug (17) which dips into a centering opening (18) of the abutment leg (3) of the clamping spring (2) and the clamping spring (2) on the holding portion (8) determines.
Federkraftklemmanschluss (1 ) nach Anspruch 3, dadurch gekennzeichnet, dass die Zentriernase (17) als Einprägung aus dem Blechmaterial des Rahmenelementes (7) ausgebildet ist. Spring terminal connection (1) according to claim 3, characterized in that the centering lug (17) is formed as an impression of the sheet material of the frame element (7).
Federkraftklemmanschluss (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Anlageschenkel (3) der Klemmfeder (2) eine vorstehende Zentriernase hat, die in eine Zentrieröffnung des Halteabschnitts (8) des Rahmenelementes (7) eintaucht und die Klemmfeder (2) an dem Halteabschnitt (8) festlegt. Spring terminal connection (1) according to one of the preceding claims, characterized in that the abutment leg (3) of the clamping spring (2) has a projecting centering nose, which dips into a centering opening of the holding portion (8) of the frame element (7) and the clamping spring (2) at the holding portion (8) determines.
Federkraftklemmanschluss (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stromschiene (6) auf dem Basisabschnitt (10) aufliegt. Spring terminal connection (1) according to one of the preceding claims, characterized in that the busbar (6) rests on the base portion (10).
Federkraftklemmanschluss (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stromschiene (6) Einbuchtungen (19) zur Aufnahme und Führung eines elektrischen Leiters zur Klemmstelle hat. Spring terminal connection (1) according to any one of the preceding claims, characterized in that the busbar (6) indentations (19) for receiving and guiding an electrical conductor to the nip has.
Federkraftklemmanschluss (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stromschiene (6) am Basisabschnitt (10) festgelegt ist. Spring terminal connection (1) according to one of the preceding claims, characterized in that the busbar (6) is fixed to the base section (10).
9. Federkraftklemmanschluss (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Klemmschenkel (5) min- destens eine seitlich am Randbereich des Klemmschenkels (5) angeordnete Betätigungslasche (1 1 ) hat. 9. spring terminal connection (1) according to one of the preceding claims, characterized in that the clamping leg (5) min- at least one laterally at the edge region of the clamping leg (5) arranged actuating tab (1 1) has.
Leiteranschlussklemme (21 ) mit einem Isolierstoffgehäuse (22), gekennzeichnet durch einen Federkraftklemmanschluss (1 ) nach einem der vorhergehenden Ansprüche in dem Isolierstoffgehäuse (22). Conductor terminal (21) having an insulating housing (22), characterized by a spring terminal connection (1) according to one of the preceding claims in the insulating housing (22).
EP14703881.4A 2013-02-13 2014-02-12 Spring-loaded clamping connection and conductor terminal Active EP2956991B1 (en)

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DE102013101410.0A DE102013101410A1 (en) 2013-02-13 2013-02-13 Spring terminal connection and conductor terminal
PCT/EP2014/052722 WO2014124964A1 (en) 2013-02-13 2014-02-12 Spring-loaded clamping connection and conductor terminal

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EP (1) EP2956991B1 (en)
JP (1) JP6200522B2 (en)
KR (1) KR102149850B1 (en)
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JP6200522B2 (en) 2017-09-20
RU2653161C2 (en) 2018-05-08
KR20150116846A (en) 2015-10-16
US9525219B2 (en) 2016-12-20
CN104981942B (en) 2018-02-27
WO2014124964A1 (en) 2014-08-21
CN104981942A (en) 2015-10-14
DE102013101410A1 (en) 2014-08-14
RU2015134850A (en) 2017-03-20
PL2956991T3 (en) 2022-05-02
JP2016507149A (en) 2016-03-07
US20150380838A1 (en) 2015-12-31
KR102149850B1 (en) 2020-09-01
EP2956991B1 (en) 2022-01-26

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