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EP0637098B1 - Electrical connection terminal - Google Patents
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EP0637098B1 - Electrical connection terminal - Google Patents

Electrical connection terminal Download PDF

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Publication number
EP0637098B1
EP0637098B1 EP94111171A EP94111171A EP0637098B1 EP 0637098 B1 EP0637098 B1 EP 0637098B1 EP 94111171 A EP94111171 A EP 94111171A EP 94111171 A EP94111171 A EP 94111171A EP 0637098 B1 EP0637098 B1 EP 0637098B1
Authority
EP
European Patent Office
Prior art keywords
clamping
clamping element
slots
element according
contacted
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.)
Expired - Lifetime
Application number
EP94111171A
Other languages
German (de)
French (fr)
Other versions
EP0637098A1 (en
Inventor
Dr. Carsten Ruchholtz
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.)
Tridonic Bauelemente GmbH
Original Assignee
Tridonic Bauelemente GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE4329690A external-priority patent/DE4329690A1/en
Application filed by Tridonic Bauelemente GmbH filed Critical Tridonic Bauelemente GmbH
Publication of EP0637098A1 publication Critical patent/EP0637098A1/en
Application granted granted Critical
Publication of EP0637098B1 publication Critical patent/EP0637098B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions
    • H01R4/2454—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions forming a U-shape with slotted branches

Definitions

  • the invention relates to a clamping element according to the preamble of claim 1.
  • a clamping element according to the invention or a connecting terminal equipped with it is particularly, but in no way exclusively intended for connecting reactors and transformers.
  • the coils of these components are generally produced using so-called enamelled wires which have an immersion lacquer layer for insulation.
  • the insulation layer in the connection area must be removed to connect the coil formers.
  • stripping the wires to be connected is time-consuming and generally hinders series production.
  • Terminals are known in many ways from the prior art. In addition to screwable terminals, such terminals are also known which clamp the wire end to be connected and thus connect them to the terminal in an electrically conductive and non-positive manner. However, in addition to the stripping of the line end to be connected which is necessary, the known connection terminals also have the disadvantage that these terminals are only suitable for a specific cross section of the electrical conductors to be connected.
  • the known clamping elements or terminals generally have a metallic clamping element in which a clamping slot is provided for receiving the end section of the line to be contacted. By compressing the clamping element and the end section of the line to be contacted, the latter is connected to the clamping element in an electrically conductive and non-positive manner.
  • the cross sections of the connectable electrical lines only have a narrow tolerance range which is related to the dimensions of the clamping slot.
  • a clamping element of the type specified at the outset is described in DE-A-3 601 788.
  • This known clamping element is formed by an integrally made of a U-shaped or wavy-folded, electrically conductive, surface-like substrate with longitudinal sections running essentially in the longitudinal direction of the line section to be contacted and cross sections running essentially transversely to the longitudinal direction of the line section to be contacted .
  • clamping slots are arranged which extend transversely to the longitudinal direction of the line to be connected and into which the section of the line to be contacted can be inserted, whereby by compressing the clamping element and the line section to be contacted, these are both conductive and non-positive in the area of the clamping slots get connected.
  • the clamping slots have different opening cross-sections that decrease in the direction of the inserted line end. This makes the clamping element suitable for connection with different conductor diameters.
  • US Pat. No. 4,350,404 describes a clamping element which is formed in one piece from a U-shaped or wavy-folded, electrically conductive and sheet-like substrate.
  • This U or wavy line shape is formed by longitudinal sections running essentially in the longitudinal direction of the line section to be contacted and transverse sections running essentially transverse to the longitudinal direction of the line section to be contacted.
  • Clamping slots for the line section are arranged in the mutually adjacent cross sections, each forming a U.
  • clamping slots of different sizes are formed in the mutually adjacent transverse sections, starting from a common longitudinal section, of which only the clamping slot in the front transverse section is set up for electrically conductive contacting of the line section.
  • the clamping slot in the rear cross section is larger and serves to hold the line section with its insulation.
  • a similar embodiment is described in GB-A-2 018 053.
  • a plurality of transverse sections each with a clamping slot in the longitudinal direction of the line to be connected, are also arranged one behind the other, only the clamping slot in the foremost transverse section being dimensioned so large that it can contact the wire of a line section.
  • the clamping slots in the two rear cross sections serve as a strain relief device.
  • the invention has for its object to design a clamping element of the type specified so that it is also suitable as a plug-in terminal.
  • the clamping element according to the invention has a plurality of clamping slots along the longitudinal extent of the line section to be connected, which have different opening cross sections. It is essential that the clamping slot closest to the inlet opening for the line to be connected has the largest opening cross-section and the opening cross-sections of the further clamping slots decrease in the direction of the inserted line end. This ensures that a conductor with a relatively large cross-section is not squeezed or sheared off at a clamping slot with an opening cross-section that is too small when it is inserted or clamped.
  • the clamping element is formed in a simple manner from a one-piece electrically conductive substrate, in particular a sheet metal strip, which is folded in such a way that the line region to be connected crosses certain sections of the substrate several times and is inserted at the crossing points in recesses in the substrate which form the clamping slots .
  • a first end of the electrically conductive substrate is resiliently bent, and a second end of the electrically conductive substrate is bent such that it encloses the U-shaped end of the substrate and fixes it under a prestress , wherein the second end has openings through which the inner conductor of a connecting wire can be inserted into the plug-in terminal.
  • the clamping element according to the invention is also suitable as a plug-in terminal, a secure plug connection being ensured.
  • Claims 2 to 20 relate to advantageous developments of the invention.
  • the clamping slots can have a taper according to claim 2. This measure ensures that the line section is in contact with the clamping element at two points of contact after the clamping element and the line section to be contacted have been pressed together, as a result of which the contact resistance can be reduced.
  • this taper can be formed by a small v-shaped opening, both the base width and the height of the v-shaped opening being able to be varied in order to vary the opening cross section.
  • the contact between the line and the clamping element can be further improved by a rectangular or trapezoidal extension in the region of the apex of the v-shaped opening.
  • the clamping slot can advantageously have cutting-like edges.
  • the wire to be connected is contacted at four points.
  • a special cutting effect for severing the insulation layer can be achieved by two clamping slots arranged at a short distance behind each other with different opening cross sections.
  • the clamping element can have a plurality of staggered rows of clamping slots arranged to accommodate different electrical lines for parallel connection of several electrical lines according to claims 15 to 17.
  • the terminal according to the invention can be connected according to claims 19 and 20 with a conventional screw, plug, or crimp terminal.
  • the wire ends of the coil formers can be contacted with the connecting terminal according to the invention and the connecting lines with the conventional terminal.
  • Fig. 1 shows a simple embodiment of the clamping element 1 of a terminal according to the invention.
  • two clamping slots 6 and 7 are formed.
  • the clamping slots are implemented as V-shaped recesses.
  • the clamping slots can have any shape, preferably a tapered shape on one side, of a recess.
  • the clamping slots 6 and 7 have different opening cross sections essential to the invention. While cables with a larger diameter are contacted at the larger clamping slot 6, cables with smaller diameters are contacted at the smaller clamping slot 7. It is essential that the clamping slot 6 with a larger opening is on the side facing the line to be contacted.
  • FIGS. 2A and 2B show a transverse section 3 and 4 in front view with inserted line section 10.
  • a compression of the clamping element and the line section 10 causes that at the contact points 11 and 12 an electrically conductive and non-positive connection is established.
  • the insulation skin of the line 10 is cut through at the contact points 11 and 12, and an electrically conductive connection is thus established between the clamping element and the line.
  • an electrical connection can thus be established and there is no need to strip the section of the line to be contacted beforehand.
  • the tapering of the clamping slot causes the line to be contacted to be connected to the transverse section 3, 4 of the clamping element at two support points 11, 12.
  • a slight deformation of the line 10 in the region of the edges of the clamping slot also results in a non-positive connection between the clamping element and the line.
  • FIGS. 2A and 2B Two possibilities for varying the opening cross section of the clamping slots 6, 7 are shown in FIGS. 2A and 2B.
  • the opening cross section of the clamping slots can be changed by varying the base a, b with a constant height h1, h2 of the v-shaped recesses, and on the other hand by varying the height h1, h2 with a constant base a, b.
  • a combination of both measures is also possible.
  • the clamping element 1 is folded in a wave-like or multiply U-shaped manner and can, for example, be formed in one piece from a sheet metal strip.
  • Transverse sections 20 to 26 are arranged transversely to the direction 2 of the longitudinal extent of the line to be contacted, the distances between which are defined by the upper-side longitudinal sections 27 to 30 and the lower-side longitudinal sections 31 to 33.
  • the clamping slots 34 to 40 are arranged on the transverse sections. Are in the illustrated embodiment the clamping slots 34 to 40 are V-shaped and open at the bottom. As already stated, other forms of the clamping slots are also conceivable.
  • the opening cross sections A, A ', B, B', C, C 'and D decrease along the direction 2.
  • the opening cross sections A and A 'of the adjacent clamping slots 34 and 35, B and B' of the adjacent clamping slots 36 and 37 and C and C 'of the adjacent clamping slots 38 and 39 are each identical in pairs.
  • This embodiment has the advantage that the line section to be contacted is contacted at four points, namely at the two points of contact of each of the identical clamping slots. This is particularly advantageous with large currents, since such contacting has a low contact resistance.
  • the clamping gaps 35 and 36 and 37 and 38 and 39 and 40 are also closely adjacent, so that a double clamping slot shown in Figures 4 A and 4 B is formed.
  • the double clamping slot shown in FIGS. 4 A and 4 B has the advantage of an improved cutting effect when cutting through the insulation skin of the conductors to be contacted.
  • the clamping slots 35 and 36 which are arranged at a short distance one behind the other, have different opening cross sections due to a variation in the basic lengths a and b and / or the heights h1 and h2 in the case of a v-shaped configuration.
  • the edge surfaces 50 to 53 of the clamping slots 35 and 36 can be beveled in accordance with the inclination specified by the gradation of the opening cross sections of the clamping slots in order to further improve the cutting effect.
  • clamping slots 34 to 39 As shown in FIG. 5, it is possible to provide, in addition to the clamping slots 34 to 39 already explained with reference to FIG. 3, further, offset clamping slots 60 to 63 on each of the transverse sections of the clamping element 1. In this way, it is possible to connect several lines at one connection terminal and to contact them at the same time by means of only one clamping element and thus to connect them in parallel.
  • the clamping slots 34 to 39 have opening cross sections that decrease along the direction 2. The same applies to the staggered row of clamping slots 60 to 63.
  • the clamping slots arranged on a common transverse section can match in terms of their opening cross-section.
  • the clamping element 1 shown corresponds to the exemplary embodiment shown in FIG. 5 for connecting a plurality of lines in parallel. While a line with a relatively small diameter 70 extends relatively far into the clamping element 1 and is only contacted at the clamping slot 39, a second line 71 with a relatively large diameter is already contacted at the clamping slot 61, which has a larger opening cross section than the clamping slot 39. It can be seen that lines with different cross-sections have to be pushed into the clamping element to different degrees and are contacted at different clamping slots.
  • the clamping slots through which the line passes, but to which it is not contacted have an enlarged opening cross-section compared to the contacting clamping slot, in order to avoid that the line in the area of those not adapted to the relevant line cross-section Clamping slots are squeezed, sheared or even cut.
  • a connecting terminal in addition to the clamping element 1, a connecting terminal according to the invention also comprises a support element (not shown) which, when the clamping element 1 is depressed along the direction 63, offers a corresponding support to the lines 60 and 61, and the connecting terminals are generally surrounded by an insulating housing which is known in various configurations.
  • FIG. 7 shows the development of a sheet metal strip 82 forming a four-stage clamping element.
  • the triangular recesses for the clamping slots 34, 37, 60 and 63 and the diamond-shaped recesses for the clamping slots 35, 36, 61 and 62 can be punched out together with the sheet metal strip.
  • the clamping element is to be folded along the fold lines 75 to 80 shown in broken lines. The manufacture of the clamping element is therefore extremely simple.
  • FIG. 8A to 8D show various further exemplary embodiments of the design of the clamping slots according to the invention.
  • a V-shaped tapering section 6a is initially provided to form the clamping slot 6, to which a rectangular recess 6b adjoins in the region of the apex.
  • the rectangular recess 6a is replaced by a trapezoidal recess 6c, which, however, can also have a triangular shape.
  • the areas 6b and 6c receive the inserted wire and, due to the small angle of attack, cause a relatively large clamping force component in the directions 13a and 13b.
  • the area 6a arranged at the opening of the clamping slots facilitates the insertion of the wires to be contacted.
  • the opening angle of the clamping slot is continuously tapered (6d).
  • the area 6b opposite the opening can be rectangular.
  • a rectangular or insignificantly tapering area in the contact zone of the clamping slot has the advantage that the insulating skin of the wire, in particular the lacquer layer of a enamelled wire, is detached by grinding the conductor along the edge of the clamping slot and in this way the reliable contacting of the conductor is ensured .
  • the embodiment shown in FIG. 6D combines the described advantages of the different zones of the clamping slot.
  • the v-shaped threading area 6a is followed by an area 6e with a constant opening cross section for the safe removal of the insulation skin.
  • the conductor is finally clamped by frictional engagement by means of the force pair 13a, 13b acting on the conductor.
  • the recess 6f in the end region of the clamping slot improves the spring action of the cross section 3 of the clamping element and thus increases the force components 13a and 13b acting on the conductor.
  • FIG. 9A and 9B show two embodiments of the connecting terminal according to the invention, which use the clamping element 1 according to the invention.
  • the clamping element 1 according to the invention is inserted into an insulation housing 90.
  • the insulation housing 90 has contact surfaces 91 to 95 on which the line sections inserted into the connection terminal lie. When the clamping element and the line section to be contacted are pressed together, these support surfaces absorb the forces acting on the line section to be contacted.
  • the insulation housing 90 is designed like a chamber, forming the subchambers 100 to 102. The intermediate webs provided between the subchambers ensure that there is a corresponding contact surface 91 to 95 in the vicinity of each clamping slot 34 to 39 and 60 to 65.
  • the height of the contact surfaces 91 to 95 is to be dimensioned such that the line sections to be contacted are contacted in the area of the clamping slots provided for this purpose.
  • the clamping element 1 can be clamped to the insulation housing 90 or snagging can be positively connected.
  • raster elements not shown, can be provided.
  • the insulation housing can be closed at the top with a cover, not shown.
  • the clamping element 1 is inserted into an insulation housing 90 which can be configured essentially as described with reference to FIG. 9A.
  • a known screw clamp 110 can also be provided, which can have an opening 111 for inserting a connecting line to be contacted conventionally, and screw elements 112, 113 for non-positively clamping the same.
  • another known clamping device in particular a plug-in or crimp terminal, can also be provided. It is essential that the clamping element 1 is electrically conductively connected to contacting parts of the screw, plug or crimp terminal.
  • FIG. 10A shows a further exemplary embodiment of a clamping element 1 according to the invention.
  • the clamping element 1 shown in FIG. 10A differs from the z. B. in Fig. 9A shown clamping element 1 in that the two transverse sections 124 and 125 are extended upward and have further clamping slots 120 to 123 in the area of these extensions.
  • the openings of the upper-side clamping slots 120 to 123 face the openings of the lower-side clamping slots 34 to 36 and 60 to 62.
  • the upper-side clamping slots serve to connect the external connecting lines and serve the same purpose as the screw terminal 110 shown in FIG. 9B.
  • the enameled wire of the coil former and the upper-side clamping slots 120 can be used by means of the lower-side clamping slots 34 to 36 and 60 to 62 to 123 the external connection line can be contacted.
  • FIG. 10B shows the development of the clamping element shown in FIG. 10A.
  • the clamping element can be designed as a punched and folded sheet metal strip.
  • the fold lines 126 to 131 are shown interrupted.
  • FIG. 11A shows a further exemplary embodiment of the clamping element according to the invention in a lateral sectional illustration.
  • the clamping slots 34 to 36 and 60 to 62 are located in the transverse sections 20 to 23.
  • the clamping element has a plug-in clamp 140 as a further development.
  • a first end 141 of the sheet metal strip of the clamping element 1 is resiliently bent, while a second end 142 of the sheet metal strip of the clamping element 1 is bent in such a way that it encloses the U-shaped first end 141.
  • the second end 142 of the sheet metal strip is bent such that it exerts a prestress on the resilient, U-shaped first end 141 of the sheet metal strip.
  • the U-shaped first end 141 is thus pressed on the upper side against the longitudinal section 27 of the clamping element 1.
  • the second end 142 of the sheet metal strip has the opening 143 shown in FIG. 11B, through which the inner conductor 145 of a connecting wire 144 is inserted into the plug-in terminal 140.
  • the second end 141 of the sheet metal strip exerts a resilient force on the inner conductor 145 and presses it against the upper side of the longitudinal section 27 of the clamping element 1, as a result of which a conductive contact is achieved.
  • FIG. 11B shows the front view of the exemplary embodiment of the clamping element 1 according to the invention shown in FIG. 11A.
  • the U-shaped first end 141 of the sheet metal strip can be seen in the area of the openings 143 of the second end 142 of the sheet metal strip.
  • recesses 146 can be provided in the contact area.
  • FIGS. 11C and 11B show a perspective illustration of the exemplary embodiment of the clamping element 1 according to the invention shown in FIGS. 11A and 11B, while FIG. 11D shows the development of the clamping element 1.
  • the recesses for the clamping slots 34 to 36 and 60 to 62 and the end openings 143 must first be punched out during the production of the clamping element 1. Then the folding takes place along the folding lines 126 to 131. Finally, the ends 141 and 142 are bent, as can be seen from FIGS. 11A to 11C.
  • FIGS. 9B, 10A and 11A to 11C thus provide several options for simultaneously contacting the enameled wire of a coil body by means of the clamping slots on the underside and the connection of the external connecting wire by means of a screw, clamp or plug-in terminal arranged on the top. Furthermore, the combination of two clamping elements according to the invention for connecting the coil former and the external connecting wire is appropriate.

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  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Glass Compositions (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The invention relates to a universal connection terminal for the connection of electrical conductors (70, 71) of different cross-sections without having to strip the insulation. The connection terminals are especially, but by no means exclusively, suitable for making contact with varnished wires of various coil components. The terminal element (1) according to the invention has a plurality of clamping slots (6, 7) with different opening cross-sections. The end section (10) of a cable (line, lead) (70, 71) with which contact is to be made is inserted into the terminal element (1) in such a manner that contact is made on a clamping slot (6, 7) having an opening cross-section which is matched to the cross-section of the cable with which contact is to be made. The clamping slots (6, 7) are arranged in such a manner that clamping slots having opening cross-sections which are too small do not touch the cable with which contact is to be made. The clamping slots (70, 71) have a suitable profile and edge surfaces, which are advantageously inclined like blades, in order to cut through the insulation skin of the cables. The parallel connection of a plurality of cables is also possible. The terminal element (1) of the connection terminal is formed integrally from a folded, electrically conductive substrate. <IMAGE>

Description

Die Erfindung betrifft ein Klemmelement nach dem Oberbegriff des Anspruchs 1. Ein erfindungsgemäßes Klemmelement oder eine damit bestückte Anschlußklemmen ist insbesondere, aber keineswegs ausschließlich zum Anschluß von Drosseln und Transformatoren bestimmt. Die Spulen dieser Bauelemente werden im allgemeinen unter Verwendung von sogenannten Lackdrähten hergestellt, die zur Isolation eine Tauchlackschicht aufweisen. Bei Verwendung von konventionellen Klemmelementen muß zum Anschluß der Spulenkörper die Isolationsschicht im Anschlußbereich entfernt werden. Das Abisolieren der anzuschließenden Drähte ist jedoch zeitaufwendig und in der Serienfertigung im allgemeinen hinderlich.The invention relates to a clamping element according to the preamble of claim 1. A clamping element according to the invention or a connecting terminal equipped with it is particularly, but in no way exclusively intended for connecting reactors and transformers. The coils of these components are generally produced using so-called enamelled wires which have an immersion lacquer layer for insulation. When using conventional clamping elements, the insulation layer in the connection area must be removed to connect the coil formers. However, stripping the wires to be connected is time-consuming and generally hinders series production.

Anschlußklemmen sind aus dem Stand der Technik in vielfältiger Weise bekannt. Neben schraubbaren Anschlußklemmen sind auch solche Anschlußklemmen bekannt, die das anzuschließende Drahtende verklemmen und somit elektrisch leitend und kraftschlüssig mit der Anschlußklemme verbinden. Die bekannten Anschlußklemmen weisen jedoch neben der wie erwähnt notwendigen Abisolation des anzuschließenden Leitungsendes weiterhin den Nachteil auf, daß diese Klemmen nur für einen bestimmten Querschnitt der anzuschließenden elektrischen Leiter geeignet sind.Terminals are known in many ways from the prior art. In addition to screwable terminals, such terminals are also known which clamp the wire end to be connected and thus connect them to the terminal in an electrically conductive and non-positive manner. However, in addition to the stripping of the line end to be connected which is necessary, the known connection terminals also have the disadvantage that these terminals are only suitable for a specific cross section of the electrical conductors to be connected.

Die bekannten Klemmelemente oder Anschlußklemmen verfügen im allgemeinen über ein metallisches Klemmelement, in welchem ein Klemmschlitz zur Aufnahme des zu kontaktierenden Endabschnittes der Leitung vorgesehen ist. Durch Zusammendrücken des Klemmelementes und des zu kontaktierenden Endabschnittes der Leitung wird letztere elektrisch leitend und kraftschlüssig mit dem Klemmelement verbunden. Die Querschnitte der anschließbaren elektrischen Leitungen weisen dabei nur einen engen Toleranzbereich auf, der mit den Abmessungen des Klemmschlitzes im Zusammenhang steht.The known clamping elements or terminals generally have a metallic clamping element in which a clamping slot is provided for receiving the end section of the line to be contacted. By compressing the clamping element and the end section of the line to be contacted, the latter is connected to the clamping element in an electrically conductive and non-positive manner. The cross sections of the connectable electrical lines only have a narrow tolerance range which is related to the dimensions of the clamping slot.

Ein Klemmelement der eingangs angegebenen Art ist in der DE-A-3 601 788 beschrieben. Dieses bekannte Klemmelement ist durch ein einstückig aus einem U-förmig oder wellenlinienförmig gefalteten, elektrisch leitfähigen, flächenartig ausgebildeten Substrat mit im wesentlichen in Längsrichtung des zu kontaktierenden Leitungsabschnitts verlaufenden Längs-Abschnitten und im wesentlichen quer zur Längsrichtung des zu kontaktierenden Leitungs-Abschnitts verlaufenden Querabschnitten gebildet. In den Quer-Abschnitten sind sich quer zur Längsrichtung der anzuschließenden Leitung erstreckende Klemmschlitze angeordnet, in welche der zu kontaktierende Abschnitt der Leitung einführbar ist, wobei durch Zusammendrücken von Klemmelement und zu kontaktierendem Leitungs-Abschnitt diese sowohl leitend als auch kraftschlüssig im Bereich der Klemmschlitze miteinander verbunden werden. Die Klemmschlitze weisen unterschiedliche, in Richtung auf das eingeführte Leitungsende abnehmende Öffnungsquerschnitte auf. Hierdurch eignet sich das Klemmelement zur Verbindung mit unterschiedlichen Leiterdurchmessern.A clamping element of the type specified at the outset is described in DE-A-3 601 788. This known clamping element is formed by an integrally made of a U-shaped or wavy-folded, electrically conductive, surface-like substrate with longitudinal sections running essentially in the longitudinal direction of the line section to be contacted and cross sections running essentially transversely to the longitudinal direction of the line section to be contacted . In the transverse sections, clamping slots are arranged which extend transversely to the longitudinal direction of the line to be connected and into which the section of the line to be contacted can be inserted, whereby by compressing the clamping element and the line section to be contacted, these are both conductive and non-positive in the area of the clamping slots get connected. The clamping slots have different opening cross-sections that decrease in the direction of the inserted line end. This makes the clamping element suitable for connection with different conductor diameters.

In der US-A-4 350 404 ist ein Klemmelement beschrieben, das einstückig aus einem U-förmig oder wellenlinienförmig gefalteten, elektrisch leitfähigen und flächenartig ausgebildeten Substrat gebildet ist. Diese U- oder Wellenlinien-Form ist durch im wesentlichen in Längsrichtung des zu kontaktierenden Leitungs-Abschnitts verlaufende Längs-Abschnitte und im wesentlichen quer zur Längsrichtung des zu kontaktierenden Leitungs-Abschnitts verlaufende Quer-Abschnitte gebildet. In den einander benachbarten, jeweils ein U bildenden Quer-Abschnitten sind Klemmschlitze für den Leitungs-Abschnitt angeordnet. Dabei sind in den von einem gemeinsamen Längs-Abschnitt ausgehenden, einander benachbarten Quer-Abschnitten unterschiedlich große Klemmschlitze ausgebildet, von denen nur der Klemmschlitz im vorderen Quer-Abschnitt für eine elektrisch leitende Kontaktierung des Leitungs-Abschnitts eingerichtet ist. Der Klemmschlitz im hinteren Quer-Abschnitt ist größer bemessen und dient dazu, den Leitungs-Abschnitt mit seiner Isolation zu halten.US Pat. No. 4,350,404 describes a clamping element which is formed in one piece from a U-shaped or wavy-folded, electrically conductive and sheet-like substrate. This U or wavy line shape is formed by longitudinal sections running essentially in the longitudinal direction of the line section to be contacted and transverse sections running essentially transverse to the longitudinal direction of the line section to be contacted. Clamping slots for the line section are arranged in the mutually adjacent cross sections, each forming a U. In this case, clamping slots of different sizes are formed in the mutually adjacent transverse sections, starting from a common longitudinal section, of which only the clamping slot in the front transverse section is set up for electrically conductive contacting of the line section. The clamping slot in the rear cross section is larger and serves to hold the line section with its insulation.

Eine ähnliche Ausgestaltung ist in der GB-A-2 018 053 beschrieben. Bei dieser bekannten Ausgestaltung sind ebenfalls mehrere Quer-Abschnitte mit jeweils einem Klemmschlitz in der Längsrichtung der anzuschließenden Leitung hintereinander angeordnet, wobei nur der Klemmschlitz im vordersten Quer-Abschnitt so groß bemessen ist, daß er die Ader eines Leitungs-Abschnitts zu kontaktieren vermag. Die Klemmschlitze in den beiden hinteren Quer-Abschnitten erfüllen die Funktion einer Zugentlastungsvorrichtung.A similar embodiment is described in GB-A-2 018 053. In this known embodiment, a plurality of transverse sections, each with a clamping slot in the longitudinal direction of the line to be connected, are also arranged one behind the other, only the clamping slot in the foremost transverse section being dimensioned so large that it can contact the wire of a line section. The clamping slots in the two rear cross sections serve as a strain relief device.

Der Erfindung liegt die Aufgabe zugrunde, ein Klemmelement der eingangs angegebenen Art so auszugestalten, daß es sich auch als Steckklemme eignet.The invention has for its object to design a clamping element of the type specified so that it is also suitable as a plug-in terminal.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.

Das erfindungsgemäße Klemmelement weist entlang der Längserstreckung des anzuschließenden Leitungs-Abschnitts mehrere Klemmschlitze auf, die unterschiedliche Öffnungsquerschnitte aufweisen. Dabei ist wesentlich, daß der der Eintrittsöffnung für die anzuschließende Leitung am nächsten liegende Klemmschlitz den größten Öffnungsquerschnitt aufweist und die Öffnungsquerschnitte der weiteren Klemmschlitze in Richtung auf das eingeführte Leitungsende abnehmen. Dadurch ist sichergestellt, daß ein Leiter mit relativ großem Querschnitt beim Einführen oder Verklemmen nicht an einem Klemmschlitz mit zu kleinem Öffnungsquerschnitt gequetscht oder abgeschert wird. Das Klemmelement ist in einfacher Weise aus einem einstückigen elektrisch leitfähigen Substrat, insbesondere einem Blechstreifen, gebildet, das so gefaltet ist, daß der anzuschließende Leitungsbereich bestimmte Abschnitte des Substrates mehrfach kreuzt und an den Kreuzungspunkten in Ausnehmungen des Substrates, welche die Klemmschlitze bilden, eingelegt ist. Außerdem ist beim erfindungsgemäßen Klemmelement zur Ausbildung einer zusätzlichen Steckklemme ein erstes Ende des elektrischen leitfähigen Substrates U-förmig federnd gebogen, und ein zweites Ende des elektrisch leitfähigen Substrates ist derart gebogen, daß es das U-fömrige Ende des Substrates umschließt und unter einer Vorspannung fixiert, wobei das zweite Ende Öffnungen aufweist, durch welche hindurch der Innenleiten eines Anschlußdrahtes in die Steckklemme eingeschoben werden kann. Hierdurch eignet sich das erfindungsgemäße Klemmelement auch als Steckklemme, wobei eine sichere Steckverbindung gewährleistet ist.The clamping element according to the invention has a plurality of clamping slots along the longitudinal extent of the line section to be connected, which have different opening cross sections. It is essential that the clamping slot closest to the inlet opening for the line to be connected has the largest opening cross-section and the opening cross-sections of the further clamping slots decrease in the direction of the inserted line end. This ensures that a conductor with a relatively large cross-section is not squeezed or sheared off at a clamping slot with an opening cross-section that is too small when it is inserted or clamped. The clamping element is formed in a simple manner from a one-piece electrically conductive substrate, in particular a sheet metal strip, which is folded in such a way that the line region to be connected crosses certain sections of the substrate several times and is inserted at the crossing points in recesses in the substrate which form the clamping slots . In addition, in the clamping element according to the invention to form an additional plug-in terminal, a first end of the electrically conductive substrate is resiliently bent, and a second end of the electrically conductive substrate is bent such that it encloses the U-shaped end of the substrate and fixes it under a prestress , wherein the second end has openings through which the inner conductor of a connecting wire can be inserted into the plug-in terminal. As a result, the clamping element according to the invention is also suitable as a plug-in terminal, a secure plug connection being ensured.

Die Ansprüche 2 bis 20 betreffen vorteilhafte Weiterbildungen der Erfindung.Claims 2 to 20 relate to advantageous developments of the invention.

Die Klemmschlitze können nach Anspruch 2 eine Verjüngung aufweisen. Durch diese Maßnahme wird gewährleistet, daß der Leitungs-Abschnitt nach Zusammendrücken von Klemmelement und zu kontaktierendem Leitungs-Abschnitt an zwei Berührungspunkten mit dem Klemmelement in Kontakt steht, wodurch der Kontaktwiderstand verringert werden kann. Nach den Ansprüchen 3 und 4 kann diese Verjüngung durch eine kleine v-förmige Öffnung gebildet werden, wobei zur Variation des Öffnungsquerschnitts sowohl die Basisbreite als auch die Höhe der v-förmigen Öffnung variiert werden kann. Durch einen rechteckförmigen oder trapezförmigen Fortsatz im Bereich des Scheitelpunktes der v-förmigen Öffnung nach Anspruch 5 kann der Kontakt zwischen der Leitung und dem Klemmelement weiter verbessert werden. Zum Durchtrennen der Isolationsummantelung insbesondere bei Lackdrähten, aber auch bei anderen isolierten Leitungen, kann der Klemmschlitz vorteilhaft schneidenartig ausgebildete Kanten nach Anspruch 8 aufweisen.The clamping slots can have a taper according to claim 2. This measure ensures that the line section is in contact with the clamping element at two points of contact after the clamping element and the line section to be contacted have been pressed together, as a result of which the contact resistance can be reduced. According to claims 3 and 4, this taper can be formed by a small v-shaped opening, both the base width and the height of the v-shaped opening being able to be varied in order to vary the opening cross section. The contact between the line and the clamping element can be further improved by a rectangular or trapezoidal extension in the region of the apex of the v-shaped opening. To cut through the insulation sheathing, in particular in the case of enamelled wires, but also in the case of other insulated lines, the clamping slot can advantageously have cutting-like edges.

Insbesondere zur Übertragung großer Stromstärken ist es vorteilhaft, daß der anzuschließende Draht an vier Stellen kontaktiert wird. Dies wird nach Anspruch 12 dadurch erreicht, daß jeweils zwei benachbarte Klemmschlitze paarweise den gleichen Querschnitt aufweisen. Eine besondere Schneidwirkung zum Durchtrennen der Isolationsschicht kann durch zwei in geringem Abstand hintereinander angeordnete Klemmschlitze mit unterschiedlichen Öffnungsquerschnitten gemäß Anspruch 13 erzielt werden. Das Klemmelement kann zum parallelen Anschluß mehrerer elektrischer Leitungen entsprechend den Ansprüchen 15 bis 17 mehrere versetzt angeordnete Klemmschlitzreihen aufweisen, die unterschiedliche elektrische Leitungen aufnehmen.In particular for the transmission of large currents, it is advantageous that the wire to be connected is contacted at four points. This is achieved according to claim 12 in that two adjacent clamping slots have the same cross section in pairs. A special cutting effect for severing the insulation layer can be achieved by two clamping slots arranged at a short distance behind each other with different opening cross sections. The clamping element can have a plurality of staggered rows of clamping slots arranged to accommodate different electrical lines for parallel connection of several electrical lines according to claims 15 to 17.

Die erfindungsgemäße Anschlußklemme kannn entsprechend den Ansprüchen 19 und 20 mit einer konventionellen Schraub-, Steck,- oder Crimpklemme verbunden sein. Beim Anschluß von Drosseln, Transformatoren und dergleichen können die Drahtenden der Spulenkörper mit der erfindungsgemäßen Anschlußklemme und die Anschlußleitungen mit der konventionellen Klemme kontaktiert werden. Es ist jedoch auch möglich, für die Anschlußleitungen ein zweites erfindungsgemäßes Klemmelement vorzusehen, das mit einem ersten Klemmelement für den Anschluß der Drahtenden der Spulenkörper elektrisch verbunden ist.The terminal according to the invention can be connected according to claims 19 and 20 with a conventional screw, plug, or crimp terminal. When connecting chokes, transformers and the like, the wire ends of the coil formers can be contacted with the connecting terminal according to the invention and the connecting lines with the conventional terminal. However, it is also possible to provide a second clamping element according to the invention for the connecting lines, which is electrically connected to a first clamping element for connecting the wire ends of the coil formers.

In den Zeichnungen sind Ausführungsformen der Erfindung beispielsweise dargestellt. Es zeigen:

Fig. 1
ein einfaches Ausführungsbeispiel eines erfindungsgemäßen Klemmelementes,
Fig 2 A und B
Variationsmöglichkeiten des Öffnungsquerschnitts der Klemmschlitze,
Fig 3
ein zweites Ausführungsbeispiel eines erfindungsgemäßen Klemmelementes
Fig 4 A
einen Doppel-Klemmschlitz mit erhöhter Schneidwirkung in Seitenansicht
Fig 4 B
einen Doppel-Klemmschlitz mit erhöhter Schneidwirkung in Vorderansicht
Fig 5
ein drittes Ausführungsbeispiel eines erfindungsgemäßen Klemmelementes
Fig 6
Klemmelement entsprechend dem dritten Ausführungsbeispiel mit eingelegten Leitungs-Abschnitten
Fig 7
Abwicklung eines Klemmelementes.
Fig 8A-8D
Weitere Ausführungsbeispiele des Klemmschlitzes.
Fig. 9A und B
ein Ausführungsbeispiel der erfindungsgemäßen Anschlußklemme
Fig. 10A
ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Klemmelementes
Fig. 10B
eine Abwicklung des in Fig. 10A dargestellten Klemmelementes
Fig. 11A bis 11C
Seiten-, Vorder- und perspektivische Ansicht eines weiteren Ausführungsbeispiels eines erfindungsgemäßen Klemmelementes
Fig. 11D
eine Abwicklung des in den Figuren 11A bis 11C dargestellten Klemmelementes
Embodiments of the invention are shown for example in the drawings. Show it:
Fig. 1
a simple embodiment of a clamping element according to the invention,
Fig. 2 A and B.
Variation options for the opening cross-section of the clamping slots,
Fig 3
a second embodiment of a clamping element according to the invention
Fig 4 A
a double clamping slot with increased cutting effect in side view
Fig 4 B
a double clamping slot with increased cutting effect in front view
Fig. 5
a third embodiment of a clamping element according to the invention
Fig. 6
Clamping element according to the third embodiment with inserted line sections
Fig. 7
Development of a clamping element.
Figures 8A-8D
Further embodiments of the clamping slot.
9A and B
an embodiment of the terminal according to the invention
Figure 10A
a further embodiment of a clamping element according to the invention
Figure 10B
a development of the clamping element shown in Fig. 10A
11A to 11C
Side, front and perspective view of a further embodiment of a clamping element according to the invention
Figure 11D
a development of the clamping element shown in Figures 11A to 11C

Fig 1 zeigt ein einfaches Ausführungsbeispiel des erfindungsgemäßen Klemmelementes 1 einer Anschlußklemme. Quer zur Richtung 2 der Längserstreckung eines nicht dargestellten Leitungs-Abschnitts befinden sich zwei Quer-Abschnitte 3 und 4, deren Abstand durch einen Längsabschnitt 5 bestimmt ist. An den Quer-Abschnitten 3 und 4 des Klemmelementes 1 sind zwei Klemmschlitze 6 und 7 ausgebildet. Im dargestellten Ausführungsbeispiel sind die Klemmschlitze als v-förmige Ausnehmungen verwirklicht. Anstatt der v-förmigen Ausgestaltung können die Klemmschlitze eine beliebige vorzugsweise eine sich einseitig verjüngende Form einer Ausnehmung aufweisen. Zur Erleichterung des Einlegens des zu kontaktierenden Abschnittes der Leitung ist es vorteilhaft, die Klemmschlitze auf der der Verjüngung abgewandten Seite geöffnet auszubilden. Dies ist jedoch dann nicht notwendig, wenn beabsichtigt ist, den zu kontaktierenden Abschnitt der Leitung entlang der Richtung 2 in das Klemmelement einzuschieben.Fig. 1 shows a simple embodiment of the clamping element 1 of a terminal according to the invention. Transverse to the direction 2 of the longitudinal extent of a line section, not shown, there are two transverse sections 3 and 4, the distance between which is determined by a longitudinal section 5. At the cross sections 3 and 4 of the clamping element 1, two clamping slots 6 and 7 are formed. In the illustrated embodiment, the clamping slots are implemented as V-shaped recesses. Instead of the v-shaped configuration, the clamping slots can have any shape, preferably a tapered shape on one side, of a recess. To facilitate the insertion of the section of the line to be contacted, it is advantageous to make the clamping slots open on the side facing away from the taper. However, this is not necessary if it is intended to insert the section of the line to be contacted into the clamping element along direction 2.

Die Klemmschlitze 6 und 7 weisen erfindungswesentlich unterschiedliche Öffnungsquerschnitte auf. Während Leitungen größeren Durchmessers am größeren Klemmschlitz 6 kontaktiert werden, werden Leitungen mit kleineren Durchmessern am kleineren Klemmschlitz 7 kontaktiert. Wesentlich ist, daß der Klemmschlitz 6 mit größerer Öffnung sich auf der der zu kontaktierenden Leitung zugewandten Seite befindet.The clamping slots 6 and 7 have different opening cross sections essential to the invention. While cables with a larger diameter are contacted at the larger clamping slot 6, cables with smaller diameters are contacted at the smaller clamping slot 7. It is essential that the clamping slot 6 with a larger opening is on the side facing the line to be contacted.

Die Figuren 2 A und 2 B zeigen einen Quer-Abschnitt 3 bzw. 4 in Frontansicht mit eingelegtem Leitungs-Abschnitt 10. Wie aus den Figuren ersichtlich, bewirkt ein Zusammendrücken des Klemmelementes und des Leitungs-Abschnittes 10, daß an den Kontaktstellen 11 und 12 eine elektrisch leitende und kraftschlüssige Verbindung hergestellt wird. Bei scharfkantiger, schneidender Ausführung der Kanten des Klemmschlitzes wird an den Berührungspunkten 11 und 12 die Isolationshaut der Leitung 10 durchtrennt und somit eine elektrisch leitende Verbindung zwischen dem Klemmelement und der Leitung hergestellt. Insbesondere bei der Kontaktierung von Lackdrähten eines Spulenkörpers kann somit eine elektrische Verbindung hergestellt werden und ein vorhergehendes Abisolieren des Abschnitts der zu kontaktierenden Leitung entfällt. Die Verjüngung des Klemmschlitzes bewirkt, daß die zu kontaktierende Leitung an zwei Auflagepunkten 11, 12 mit dem Quer-Abschnitt 3, 4 des Klemmelementes in Verbindung steht. Durch eine leichte Deformation der Leitung 10 im Bereich der Kanten des Klemmschlitzes wird darüber hinaus eine kraftschlüssige Verbindung zwischen dem Klemmelement und der Leitung erzielt.FIGS. 2A and 2B show a transverse section 3 and 4 in front view with inserted line section 10. As can be seen from the figures, a compression of the clamping element and the line section 10 causes that at the contact points 11 and 12 an electrically conductive and non-positive connection is established. In the case of a sharp-edged, cutting design of the edges of the clamping slot, the insulation skin of the line 10 is cut through at the contact points 11 and 12, and an electrically conductive connection is thus established between the clamping element and the line. In particular when contacting enameled wires of a coil former, an electrical connection can thus be established and there is no need to strip the section of the line to be contacted beforehand. The tapering of the clamping slot causes the line to be contacted to be connected to the transverse section 3, 4 of the clamping element at two support points 11, 12. A slight deformation of the line 10 in the region of the edges of the clamping slot also results in a non-positive connection between the clamping element and the line.

Des weiteren sind in den Figuren 2 A und 2 B zwei Möglichkeiten der Variation des Öffnungsquerschnitts der Klemmschlitze 6, 7 dargestellt. Zum einen kann der Öffnungsquerschnitt der Klemmschlitze bei gleichbleibender Höhe h1, h2 der v-förmigen Ausnehmungen durch Variation der Basis a, b und zum anderen bei gleichbleibender Basis a, b durch Variation der Höhe h1, h2 verändert werden. Selbstverständlich ist auch eine Kombination beider Maßnahmen möglich.Furthermore, two possibilities for varying the opening cross section of the clamping slots 6, 7 are shown in FIGS. 2A and 2B. On the one hand, the opening cross section of the clamping slots can be changed by varying the base a, b with a constant height h1, h2 of the v-shaped recesses, and on the other hand by varying the height h1, h2 with a constant base a, b. Of course, a combination of both measures is also possible.

Fig. 3 zeigt ein zweites Ausführungsbeispiel des erfindungsgemäßen Klemmelementes 1. Das Klemmelement 1 ist wellenförmig bzw. mehrfach u-förmig gefaltet und kann zum Beispiel einstückig aus einem Blechstreifen ausgebildet sein. Quer zur Richtung 2 der Längserstreckung der zu kontaktierenden Leitung sind Quer-Abschnitte 20 bis 26 angeordnet, deren Abstände durch die oberseitigen Längs-Abschnitte 27 bis 30 und die unterseitigen Längs-Abschnitte 31 bis 33 festgelegt werden. An den Quer-Abschnitten sind die Klemmschlitze 34 bis 40 angeordnet. Im dargestellten Ausführungsbeispiel sind die Klemmschlitze 34 bis 40 v-förmig und nach unten geöffnet ausgebildet. Wie bereits ausgeführt, sind jedoch auch andere Formen der Klemmschlitze denkbar. Die Öffnungsquerschnitte A, A', B, B', C, C' und D nehmen entlang der Richtung 2 ab. Im dargestellten Ausführungsbeispiel sind die Öffnungsquerschnitte A und A' der benachbarten Klemmschlitze 34 und 35, B und B' der benachbarten Klemmschlitze 36 und 37 und C und C' der benachbarten Klemmschlitze 38 und 39 jeweils paarweise identisch. Diese Ausgestaltung weist den Vorteil auf, daß der zu kontaktierende Leitungs-Abschnitt an vier Punkten, nämlich an den je zwei Berührungspunkten eines jeden der paarweise identischen Klemmschlitze kontaktiert wird. Dies ist insbesondere bei großen Stromstärken vorteilhaft, da eine solche Kontaktierung einen geringen Kontaktwiderstand aufweist. Im dargestellten Ausführungsbeispiel sind ferner die Klemmspalte 35 und 36 sowie 37 und 38 sowie 39 und 40 eng benachbart, so daß ein in den Figuren 4 A und 4 B näher dargestellter Doppel-Klemmschlitz entsteht.3 shows a second exemplary embodiment of the clamping element 1 according to the invention. The clamping element 1 is folded in a wave-like or multiply U-shaped manner and can, for example, be formed in one piece from a sheet metal strip. Transverse sections 20 to 26 are arranged transversely to the direction 2 of the longitudinal extent of the line to be contacted, the distances between which are defined by the upper-side longitudinal sections 27 to 30 and the lower-side longitudinal sections 31 to 33. The clamping slots 34 to 40 are arranged on the transverse sections. Are in the illustrated embodiment the clamping slots 34 to 40 are V-shaped and open at the bottom. As already stated, other forms of the clamping slots are also conceivable. The opening cross sections A, A ', B, B', C, C 'and D decrease along the direction 2. In the illustrated embodiment, the opening cross sections A and A 'of the adjacent clamping slots 34 and 35, B and B' of the adjacent clamping slots 36 and 37 and C and C 'of the adjacent clamping slots 38 and 39 are each identical in pairs. This embodiment has the advantage that the line section to be contacted is contacted at four points, namely at the two points of contact of each of the identical clamping slots. This is particularly advantageous with large currents, since such contacting has a low contact resistance. In the illustrated embodiment, the clamping gaps 35 and 36 and 37 and 38 and 39 and 40 are also closely adjacent, so that a double clamping slot shown in Figures 4 A and 4 B is formed.

Der in den Figuren 4 A und 4 B dargestellte Doppel-Klemmschlitz weist den Vorteil einer verbesserten Schneidwirkung beim Durchtrennen der Isolationshaut der zu kontaktierenden Leiter auf. Die im geringen Abstand hintereinander angeordneten Klemmschlitze 35 und 36 weisen durch eine Variation der Basislängen a und b und/oder der Höhen h1 und h2 bei v-förmiger Ausgestaltung unterschiedliche Öffnungsquerschnitte auf. Ferner können, wie in der in Figur 4 B gezeigten Vorderansicht angedeutet, die Kantenflächen 50 bis 53 der Klemmschlitze 35 und 36 entsprechend der durch die Abstufung der Öffnungsquerschnitte der Klemmschlitze vorgegebenen Neigung angeschrägt sein, um die Schneidwirkung weiter zu verbessern.The double clamping slot shown in FIGS. 4 A and 4 B has the advantage of an improved cutting effect when cutting through the insulation skin of the conductors to be contacted. The clamping slots 35 and 36, which are arranged at a short distance one behind the other, have different opening cross sections due to a variation in the basic lengths a and b and / or the heights h1 and h2 in the case of a v-shaped configuration. Furthermore, as indicated in the front view shown in FIG. 4B, the edge surfaces 50 to 53 of the clamping slots 35 and 36 can be beveled in accordance with the inclination specified by the gradation of the opening cross sections of the clamping slots in order to further improve the cutting effect.

Wie in Figur 5 dargestellt, ist es möglich, an jedem der Quer-Abschnitte des Klemmelementes 1 neben den bereits anhand von Fig. 3 erläuterten Klemmschlitzen 34 bis 39 weitere, versetzt angeordnete Klemmschlitze 60 bis 63 vorzusehen. Auf diese Weise ist es möglich, mehrere Leitungen an einer Anschlußklemme zusammenzuführen und mittels nur eines Klemmelementes gleichzeitig zu kontaktieren und somit parallel zu schalten. Wie bereits anhand von Fig. 3 erläutert, weisen die Klemmschlitze 34 bis 39 entlang der Richtung 2 abnehmende Öffnungsquerschnitte auf. Gleiches gilt für die versetzt angeordnete Reihe der Klemmschlitze 60 bis 63. Die an jeweils einem gemeinsamen Quer-Abschnitt angeordneten Klemmschlitze können hinsichtlich ihres Öffnungsquerschnittes übereinstimmen. Es ist jedoch auch möglich, die Öffnungsquerschnitte der Klemmschlitze 60 bis 63 bezüglich des jeweiligen versetzt angeordneten Klemmschlitzes 34 bis 39 größer oder kleiner zu dimensionieren. Dies ist insbesondere dann vorteilhaft, wenn Leitungen mit wesentlich differierenden Querschnitten mittels eines gemeinsamen Klemmelementes parallel kontaktiert werden sollen.As shown in FIG. 5, it is possible to provide, in addition to the clamping slots 34 to 39 already explained with reference to FIG. 3, further, offset clamping slots 60 to 63 on each of the transverse sections of the clamping element 1. In this way, it is possible to connect several lines at one connection terminal and to contact them at the same time by means of only one clamping element and thus to connect them in parallel. As already explained with reference to FIG. 3, the clamping slots 34 to 39 have opening cross sections that decrease along the direction 2. The same applies to the staggered row of clamping slots 60 to 63. The clamping slots arranged on a common transverse section can match in terms of their opening cross-section. However, it is also possible to dimension the opening cross sections of the clamping slots 60 to 63 larger or smaller with respect to the respective offset clamping slot 34 to 39. This is particularly advantageous when lines with significantly different Cross sections are to be contacted in parallel by means of a common clamping element.

Die Wirkungsweise des erfindungsgemäßen Klemmelementes wird nachfolgend anhand von Fig. 6 erläutert. Das dargestellte Klemmelement 1 entspricht dem in Fig. 5 dargestellten Ausführungsbeispiel zum parallelen Anschluß mehrerer Leitungen. Während eine Leitung mit relativ geringem Durchmesser 70 relativ weit in das Klemmelement 1 hineinreicht und erst am Klemmschlitz 39 kontaktiert wird, wird eine zweite Leitung 71 mit relativ großem Durchmesser bereits am Klemmschlitz 61, der gegenüber dem Klemmschlitz 39 einen größeren Öffnungsquerschnitt aufweist, kontaktiert. Es ist ersichtlich, daß Leitungen mit unterschiedlichen Querschnitten unterschiedlich weit in das Klemmelement hineingeschoben werden müssen und an jeweils verschiedenen Klemmschlitzen ihre Kontaktierung erfahren. Wie bereits betont, ist dabei wesentlich, daß die Klemmschlitze durch die die Leitung hindurchtritt, an welchen sie aber nicht kontaktiert wird, einen gegenüber dem kontaktierenenden Klemmschlitz vergrößerten Öffnungsquerschnitt aufweisen, um zu vermeiden, daß die Leitung im Bereich der nicht an dem betreffenden Leitungsquerschnitt angepaßten Klemmschlitze gequetscht, abgeschert oder gar durchtrennt wird.The operation of the clamping element according to the invention is explained below with reference to FIG. 6. The clamping element 1 shown corresponds to the exemplary embodiment shown in FIG. 5 for connecting a plurality of lines in parallel. While a line with a relatively small diameter 70 extends relatively far into the clamping element 1 and is only contacted at the clamping slot 39, a second line 71 with a relatively large diameter is already contacted at the clamping slot 61, which has a larger opening cross section than the clamping slot 39. It can be seen that lines with different cross-sections have to be pushed into the clamping element to different degrees and are contacted at different clamping slots. As already emphasized, it is essential that the clamping slots through which the line passes, but to which it is not contacted, have an enlarged opening cross-section compared to the contacting clamping slot, in order to avoid that the line in the area of those not adapted to the relevant line cross-section Clamping slots are squeezed, sheared or even cut.

Eine erfindungsgemäße Anschlußklemme umfaßt neben dem Klemmelement 1 auch ein nicht gezeigtes Auflageelement, welches beim Niederdrücken des Klemmelementes 1 entlang der Richtung 63 den Leitungen 60 und 61 eine entsprechende Auflage bietet, ferner sind die Anschlußklemmen im allgemeinen durch ein in vielfältigen Ausgestaltungen bekanntes Isoliergehäuse umgeben.In addition to the clamping element 1, a connecting terminal according to the invention also comprises a support element (not shown) which, when the clamping element 1 is depressed along the direction 63, offers a corresponding support to the lines 60 and 61, and the connecting terminals are generally surrounded by an insulating housing which is known in various configurations.

In Fig. 7 ist die Abwicklung eines ein vierstufiges Klemmelement bildenden Blechstreifens 82 dargestellt. Die dreieckigen Ausnehmungen für die Klemmschlitze 34, 37, 60 und 63 und die rautenförmigen Ausnehmungen für die Klemmschlitze 35, 36, 61 und 62 können zusammen mit dem Blechstreifen ausgestanzt werden. Anschließend ist das Klemmelement entlang den unterbrochen gezeichneten Faltlinien 75 bis 80 zu falten. Die Herstellung des Klemmelementes ist daher denkbar einfach.7 shows the development of a sheet metal strip 82 forming a four-stage clamping element. The triangular recesses for the clamping slots 34, 37, 60 and 63 and the diamond-shaped recesses for the clamping slots 35, 36, 61 and 62 can be punched out together with the sheet metal strip. Subsequently, the clamping element is to be folded along the fold lines 75 to 80 shown in broken lines. The manufacture of the clamping element is therefore extremely simple.

Die Fig. 8A bis 8D zeigen verschiedene weitere Ausführungsbeispiele der Ausbildung der erfindungsgemäßen Klemmschlitze. In dem in Fig. 8A gezeigten Ausführungsbeispiel ist zur Ausbildung des Klemmschlitzes 6 zunächst ein sich v-förmig verjüngender Abschnitt 6a vorgesehen, an den sich im Bereich des Scheitelpunktes eine rechteckförmige Ausnehmung 6b anschließt. In dem in Fig. 8B dargestellten Ausführungsbeispiel ist die rechteckförmige Ausnehmung 6a durch eine trapezförmige Ausnehmung 6c, die jedoch auch eine Dreieckform aufweisen kann, ersetzt. Die Bereiche 6b und 6c nehmen den eingeschobenen Draht auf und bewirken aufgrund des kleinen Anstellwinkels eine relativ große Klemmkraftkomponente in den Richtungen 13a und 13b. Der an der Öffnung der Klemmschlitze angeordnete Bereich 6a erleichtert das Einführen der zu kontaktierenden Drähte. In dem in Fig. 8C dargestellten Ausführungsbeispiel wird der Öffnungswinkel des Klemmschlitzes stetig verjüngt (6d). Der der Öffnung gegenüberliegende Bereich 6b kann rechteckförmig ausgebildet sein. Ein rechteckförmiger oder sich unwesentlich verjüngender Bereich in der Kontaktzone des Klemmschlitzes weist den Vorteil auf, daß die Isolierhaut des Drahtes, insbesondere die Lackschicht eines Lackdrahtes durch Entlangschleifen des Leiters an der Kante des Klemmschlitzes abgelöst wird und auf diese Weise die sichere Kontaktierung des Leiters gewährleistet wird. Das in Fig. 6D dargestellte Ausführungsbeispiel vereinigt die beschriebenen Vorteile der unterschiedlichen Zonen des Klemmschlitzes. Dem v-förmigen Einfädelbereich 6a schließt sich ein Bereich 6e mit konstantem Öffnungsquerschnitt zur sicheren Entfernung der Isolationshaut an. In dem sich weiter verjüngenden Bereich 6c erfolgt schließlich das Verklemmen des Leiters durch Reibschluß mittels des auf den Leiter wirkenden Kräftepaares 13a, 13b. Die Ausnehmung 6f im Endbereich des Klemmschlitzes verbessert die Federwirkung des Querabschnitts 3 des Klemmelementes und erhöht somit die auf den Leiter wirkenden Kraftkomponenten 13a und 13b.8A to 8D show various further exemplary embodiments of the design of the clamping slots according to the invention. In the exemplary embodiment shown in FIG. 8A, a V-shaped tapering section 6a is initially provided to form the clamping slot 6, to which a rectangular recess 6b adjoins in the region of the apex. In the in Fig. 8B In the illustrated embodiment, the rectangular recess 6a is replaced by a trapezoidal recess 6c, which, however, can also have a triangular shape. The areas 6b and 6c receive the inserted wire and, due to the small angle of attack, cause a relatively large clamping force component in the directions 13a and 13b. The area 6a arranged at the opening of the clamping slots facilitates the insertion of the wires to be contacted. In the exemplary embodiment shown in FIG. 8C, the opening angle of the clamping slot is continuously tapered (6d). The area 6b opposite the opening can be rectangular. A rectangular or insignificantly tapering area in the contact zone of the clamping slot has the advantage that the insulating skin of the wire, in particular the lacquer layer of a enamelled wire, is detached by grinding the conductor along the edge of the clamping slot and in this way the reliable contacting of the conductor is ensured . The embodiment shown in FIG. 6D combines the described advantages of the different zones of the clamping slot. The v-shaped threading area 6a is followed by an area 6e with a constant opening cross section for the safe removal of the insulation skin. In the tapering area 6c, the conductor is finally clamped by frictional engagement by means of the force pair 13a, 13b acting on the conductor. The recess 6f in the end region of the clamping slot improves the spring action of the cross section 3 of the clamping element and thus increases the force components 13a and 13b acting on the conductor.

In den Fig. 9A und 9B sind zwei Ausführungsformen der erfindungsgemäßen Anschlußklemme dargestellt, die sich dem erfindungsgemäßen Klemmelement 1 bedienen. In dem in Fig. 9A gezeigten Ausführungsbeispiel wird das erfindungsgemäße Klemmelement 1 in ein Isolationsgehäuse 90 eingeschoben. Das Isolationsgehäuse 90 weist Auflageflächen 91 bis 95 auf gut welchen die in die Anschlußklemme eingeführten Leitungsabschnitte aufliegen. Beim Zusammendrücken von Klemmelement und dem zu kontaktierenden Leitungsabschnitt nehmen diese Auflageflächen, die auf den zu kontaktierenden Leitungsabschnitt wirkenden Kräfte auf. Im dargestellten Ausführungsbeispiel ist das Isolationsgehäuse 90 kammerartig unter Ausbildung der Teilkammern 100 bis 102 ausgebildet. Durch die zwischen den Teilkammern vorgesehenen Zwischenstege wird erreicht, daß in der Nähe eines jeden Klemmschlitzes 34 bis 39 und 60 bis 65 eine entsprechende Auflagefläche 91 bis 95 vorhanden ist. Die Höhe der Auflageflächen 91 bis 95 ist so zu bemessen, daß die zu kontaktierenden Leitungsabschnitte im dafür vorgesehenen Bereich der Klemmschlitze kontaktiert werden. Das Klemmelement 1 kann mit dem Isolationsgehäuse 90 durch Verklemmen oder Verhaken kraftschlüssig verbunden werden. Dazu können nicht dargestellte Rasterelemente vorgesehen sein. Ferner kann das Isolationsgehäuse mit einem nicht dargestellten Deckel an der Oberseite verschlossen werden.9A and 9B show two embodiments of the connecting terminal according to the invention, which use the clamping element 1 according to the invention. In the exemplary embodiment shown in FIG. 9A, the clamping element 1 according to the invention is inserted into an insulation housing 90. The insulation housing 90 has contact surfaces 91 to 95 on which the line sections inserted into the connection terminal lie. When the clamping element and the line section to be contacted are pressed together, these support surfaces absorb the forces acting on the line section to be contacted. In the exemplary embodiment shown, the insulation housing 90 is designed like a chamber, forming the subchambers 100 to 102. The intermediate webs provided between the subchambers ensure that there is a corresponding contact surface 91 to 95 in the vicinity of each clamping slot 34 to 39 and 60 to 65. The height of the contact surfaces 91 to 95 is to be dimensioned such that the line sections to be contacted are contacted in the area of the clamping slots provided for this purpose. The clamping element 1 can be clamped to the insulation housing 90 or snagging can be positively connected. For this purpose, raster elements, not shown, can be provided. Furthermore, the insulation housing can be closed at the top with a cover, not shown.

In dem in Fig. 9B dargestellten Ausführungsbeispiel wird das erfindungsgemäße Klemmelement 1 in ein Isolationsgehäuse 90 eingesetzt, das im wesentlichen wie anhand von Fig. 9A beschrieben ausgebildet sein kann. An der Oberseite des Klemmelementes 1 kann ferner eine bekannte Schraubklemme 110 vorgesehen sein, die eine Öffnung 111 zum Einschieben einer konventionell zu kontaktierenden Anschlußleitung und Schraubelemente 112, 113 zum kraftschlüssigen Verklemmen derselben aufweisen kann. Anstatt der dargestellten Schraubklemme kann jedoch auch eine andere bekannte Klemmvorrichtung, insbesondere eine Steck- oder Crimpklemme vorgesehen sein. Wesentlich ist, daß das Klemmelement 1 elektrisch leitend mit kontaktierenden Teilen der Schraub-, Steck- oder Crimpklemme verbunden ist.In the exemplary embodiment shown in FIG. 9B, the clamping element 1 according to the invention is inserted into an insulation housing 90 which can be configured essentially as described with reference to FIG. 9A. On the upper side of the clamping element 1, a known screw clamp 110 can also be provided, which can have an opening 111 for inserting a connecting line to be contacted conventionally, and screw elements 112, 113 for non-positively clamping the same. Instead of the screw terminal shown, however, another known clamping device, in particular a plug-in or crimp terminal, can also be provided. It is essential that the clamping element 1 is electrically conductively connected to contacting parts of the screw, plug or crimp terminal.

Fig. 10A zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Klemmelementes 1. Das in Fig. 10A dargestellte Klemmelement 1 unterscheidet sich von dem z. B. in Fig. 9A dargestellten Klemmelement 1 dadurch, daß die beiden Quer-Abschnitte 124 und 125 nach oben verlängert sind und im Bereich dieser Verlängerungen weitere Klemmschlitze 120 bis 123 aufweisen. Die Öffnungen der oberseitigen Klemmschlitze 120 bis 123 sind die Öffnungen der unterseitigen Klemmschlitze 34 bis 36 und 60 bis 62 entgegengerichtet. Die oberseitigen Klemmschlitze dienen zum Anschluß der externen Anschlußleitungen und erfüllen denselben Zweck wie die in Fig. 9B dargestellte Schraubklemme 110. Beim Anschluß eines Spulenkörpers kann somit mittels der unterseitigen Klemmschlitze 34 bis 36 und 60 bis 62 der Lackdraht des Spulenkörpers und mittels der oberseitigen Klemmschlitze 120 bis 123 die externe Anschlußleitung kontaktiert werden.10A shows a further exemplary embodiment of a clamping element 1 according to the invention. The clamping element 1 shown in FIG. 10A differs from the z. B. in Fig. 9A shown clamping element 1 in that the two transverse sections 124 and 125 are extended upward and have further clamping slots 120 to 123 in the area of these extensions. The openings of the upper-side clamping slots 120 to 123 face the openings of the lower-side clamping slots 34 to 36 and 60 to 62. The upper-side clamping slots serve to connect the external connecting lines and serve the same purpose as the screw terminal 110 shown in FIG. 9B. When connecting a coil former, the enameled wire of the coil former and the upper-side clamping slots 120 can be used by means of the lower-side clamping slots 34 to 36 and 60 to 62 to 123 the external connection line can be contacted.

Fig. 10B zeigt die Abwicklung des in Fig. 10A dargestellten Klemmelementes. Auch bei diesem Ausführungsbeispiel kann das Klemmelement als gestanzter und gefalteter Blechstreifen ausgebildet sein. Die Faltlinien 126 bis 131 sind unterbrochen eingezeichnet.FIG. 10B shows the development of the clamping element shown in FIG. 10A. In this embodiment too, the clamping element can be designed as a punched and folded sheet metal strip. The fold lines 126 to 131 are shown interrupted.

Fig. 11A zeigt ein weiteres Ausführungsbeispiel des erfindungsgemäßen Klemmelementes in seitlicher Schnittdarstellung. Die Klemmschlitze 34 bis 36 und 60 bis 62 befinden sich in den Quer-Abschnitten 20 bis 23. An der Oberseite weist das Klemmelement als Weiterbildung eine Steckklemme 140 auf. Zur Ausbildung der Steckklemme 140 wird ein erstes Ende 141 des Blechstreifens des Klemmelementes 1 u-förmig federnd gebogen, während ein zweites Ende 142 des Blechstreifens des Klemmelementes 1 in der Weise gebogen wird, daß es das u-förmige erste Ende 141 umschließt. Das zweite Ende 142 des Blechstreifens wird derart gebogen, daß es auf das federnde, u-förmige erste Ende 141 des Blechsteifens eine Vorspannung ausübt. Das u-förmige erste Ende 141 wird somit oberseitig gegen den Längs-Abschnitt 27 des Klemmelementes 1 gedrückt. Das zweite Ende 142 des Blechsteifens weist die in Fig. 11B dargestellte Öffnung 143 auf, durch welche hindurch der Innenleiter 145 eines Anschlußdrahtes 144 in die Steckklemme 140 eingeschoben wird. Das zweite Ende 141 des Blechsteifens wirkt eine federnde Kraft auf den Innenleiter 145 aus und drückt diesen gegen die Oberseite des Längs-Abschnittes 27 des Klemmelementes 1, wodurch eine leitfähige Kontaktierung erreicht wird.11A shows a further exemplary embodiment of the clamping element according to the invention in a lateral sectional illustration. The clamping slots 34 to 36 and 60 to 62 are located in the transverse sections 20 to 23. On the upper side, the clamping element has a plug-in clamp 140 as a further development. To train the Plug-in clamp 140, a first end 141 of the sheet metal strip of the clamping element 1 is resiliently bent, while a second end 142 of the sheet metal strip of the clamping element 1 is bent in such a way that it encloses the U-shaped first end 141. The second end 142 of the sheet metal strip is bent such that it exerts a prestress on the resilient, U-shaped first end 141 of the sheet metal strip. The U-shaped first end 141 is thus pressed on the upper side against the longitudinal section 27 of the clamping element 1. The second end 142 of the sheet metal strip has the opening 143 shown in FIG. 11B, through which the inner conductor 145 of a connecting wire 144 is inserted into the plug-in terminal 140. The second end 141 of the sheet metal strip exerts a resilient force on the inner conductor 145 and presses it against the upper side of the longitudinal section 27 of the clamping element 1, as a result of which a conductive contact is achieved.

Fig. 11B zeigt die Frontansicht des in Fig. 11A dargestellten Ausführungsbeispieles des erfindungsgemäßen Klemmelementes 1. Im Bereich der Öffnungen 143 des zweiten Endes 142 des Blechstreifens ist das u-förmig gebogene erste Ende 141 des Blechstreifens erkennbar. Zur Verbesserung der Kontaktierung der Innenleitung 145 der anzuschließenden Leitung 144 können im Kontaktbereich Ausnehmungen 146 vorgesehen sein.FIG. 11B shows the front view of the exemplary embodiment of the clamping element 1 according to the invention shown in FIG. 11A. The U-shaped first end 141 of the sheet metal strip can be seen in the area of the openings 143 of the second end 142 of the sheet metal strip. To improve the contacting of the inner line 145 of the line 144 to be connected, recesses 146 can be provided in the contact area.

Fig. 11C zeigt eine perspektivische Darstellung des in den Figuren 11A und 11B dargestellten Ausführungsbeispiels des erfindungsgemäßen Klemmelementes 1, während Fig. 11D die Abwicklung des Klemmelementes 1 darstellt. Die Ausnehmungen für die Klemmschlitze 34 bis 36 und 60 bis 62 sowie die endseitigen Öffnungen 143 müssen bei der Herstellung des Klemmelementes 1 zunächst ausgestanzt werden. Sodann erfolgt die Faltung entland der Faltlinien 126 bis 131. Abschließend werden die Enden 141 und 142 wie aus den Figuren 11A bis 11C ersichtlich gebogen.11C shows a perspective illustration of the exemplary embodiment of the clamping element 1 according to the invention shown in FIGS. 11A and 11B, while FIG. 11D shows the development of the clamping element 1. The recesses for the clamping slots 34 to 36 and 60 to 62 and the end openings 143 must first be punched out during the production of the clamping element 1. Then the folding takes place along the folding lines 126 to 131. Finally, the ends 141 and 142 are bent, as can be seen from FIGS. 11A to 11C.

Aus den Figuren 9B, 10A und 11A bis 11C ergeben sich somit mehrere Möglichkeiten zum gleichzeitigen Kontaktieren des Lackdrahtes eines Spulenkörpers mittels der unterseitigen Klemmschlitze und dem Anschluß des externen Anschlußdrahtes mittels einer oberseitig angeordneten Schraub-, Klemm- oder Steckklemme. Desweiteren bietet sich die Kombination zweier erfindungsgemäßer Klemmelemente zum Anschluß des Spulenkörpers und des externen Anschlußdrahtes an.FIGS. 9B, 10A and 11A to 11C thus provide several options for simultaneously contacting the enameled wire of a coil body by means of the clamping slots on the underside and the connection of the external connecting wire by means of a screw, clamp or plug-in terminal arranged on the top. Furthermore, the combination of two clamping elements according to the invention for connecting the coil former and the external connecting wire is appropriate.

Claims (20)

  1. Clamping element (1) of a terminal for connecting electric lines (70, 71), having at least one clamping slot (6), which extends at right angles to the longitudinal direction of the line to be connected and into which the portion (10) of the line to be contacted may be introduced,
    - wherein through compression of clamping element (1) and line portion (10) to be contacted, the latter are connected both in an electrically conductive and in a frictional manner to one another in the region of the clamping slot (6),
    - wherein a plurality of clamping slots (6, 7) are provided along the longitudinal direction (2) of the line portion (10) to be contacted and have differing opening cross sections (A, B, C, D) which decrease in the direction of the introduced line end (65, 66),
    - wherein the clamping element (1) is integrally formed from an electrically conductive, planar substrate (82), which is folded into the shape of a U or a wavy line and has longitudinal portions (27 to 33) extending substantially in longitudinal direction (2) of the line portion to be contacted and transverse portions (20 to 26) extending substantially at right angles to the longitudinal direction (2) of the line portion to be contacted,
    - and wherein, to form the clamping slots (34 to 40), recesses are provided in the transverse portions,
    characterized in
    that, to form an additional plug-in terminal (140), a first end (141) of the electrically conductive substrate is bent flexibly into a U shape and a second end (142) of the electrically conductive substrate is bent in such a way that it encloses the U-shaped first end (141) of the substrate and fixes said first end under an initial stress, the second end having openings (143), through which the inner conductor (145) of a connection wire (144) may be inserted into the plug-in terminal.
  2. Clamping element according to claim 1,
    characterized in
    that the clamping slots (6, 7) each have a taper, the line portion (10) to be contacted being pressed in the direction of the taper as a result of the compression of clamping element (1) and line portion (10) to be contacted.
  3. Clamping element according to claim 2,
    characterized in
    that the clamping slots (6, 7) are each formed by an opening (6a) which tapers in a substantially V-shaped manner.
  4. Clamping element according to claim 3,
    characterized in
    that the variation of the opening cross sections of the clamping slots (6, 7) is achieved by a variation of the base (a, b) and/or of the height (h1, h2) of the V-shaped openings.
  5. Clamping element according to claim 3 or 4,
    characterized in
    that the V-shaped openings (6a) in the region of the apex have a rectangular and/or trapezoidal, elongate extension (6b, 6c, 6e).
  6. Clamping element according to one of claims 2 to 5,
    characterized in
    that the clamping slots (6, 7) have a regicn (6d) with a continuously decreasing opening angle.
  7. Clamping element according to one of claims 1 to 6,
    characterized in
    that the clamping slots (6, 7) at one end have a recess (6f) for improving the resilient clamping action.
  8. Clamping element according to one of claims 1 to 7,
    characterized in
    that the clamping slots (35, 36) have edges (50 to 53) designed in the manner of cutting edges.
  9. Clamping element according to one of claims 1 to 8,
    characterized in
    that the clamping slots (35 to 40) provided in the transverse portions (20 to 26) are connected at one end to one another by recesses in the longitudinal portions (31 to 33) and are therefore open at one end.
  10. Clamping element according to claim 9,
    characterized in
    that the longitudinal portions (31 to 33) at the side of the openings of the clamping slots (34 to 40) are shorter than the longitudinal portions (27 to 30) at the side remote from the openings of the clamping slots (34 to 40).
  11. Clamping element according to one of claims 1 to 10,
    characterized in
    that the electrically conductive substrate is formed by a sheet metal strip.
  12. Clamping element according to one of claims 1 to 11,
    characterized in
    that adjacent clamping slots (34, 35; 36, 37; 38, 39) form pairs with identical opening cross sections (A, A'; B, B'; C, C').
  13. Clamping element according to one of claims 1 to 12,
    characterized in
    that in each case two clamping slots with different opening cross sections are disposed offset at a slight distance from one another along the longitudinal direction of the line portion to be contacted.
  14. Clamping element according to one of claims 1 to 13,
    characterized in
    that the edges (50 to 53) of the clamping slots (34 to 40) are bevelled in the manner of a cutting edge.
  15. Clamping element according to one of claims 1 to 14,
    characterized in
    that, in particular for parallel connection of a plurality of electric lines, further clamping slots (60 to 65) are provided, which are disposed offset at right angles to the longitudinal direction (2) of the line portions to be contacted.
  16. Clamping element according to one of claims 1 to 15,
    characterized in
    that, in particular for parallel connection of a plurality of electric lines (70, 71), a plurality of clamping slots (34, 60; 36, 61; 38, 62; 39, 63) are provided in each transverse portion (20 to 26) of the clamping element (1).
  17. Clamping element according to claims 15 or 16,
    characterized in
    that clamping slots (34-36, 60-62; 120-123) arranged in an offset manner have differently directed openings.
  18. Clamping element (1) according to one of claims 1 to 17,
    characterized in
    that it is inserted into an insulating housing (90), with which it forms a terminal, the insulating housing (90) comprising at least one supporting element (91-95) on which the line portion (10) introduced into the terminal is supported, and which upon compression of clamping element (1) and line portion (10) to be contacted absorbs the force acting upon the line portion (10).
  19. Clamping element according to claim 18,
    characterized in
    that the insulating housing further comprises a screw, plug-in or crimp terminal (110) or a second clamping element according to one of claims 1 to 19 and that the first clamping element (1) is electrically connected to electrically conductive parts of the screw, plug-in or crimp terminal (110) or to the second clamping element.
  20. Clamping element according to claim 19,
    characterized in
    that the screw, plug-in or crimp terminal (110) or the second clamping element is connected in a frictional and electrically conductive manner, particularly by soldering or spot welding, directly to the first clamping element (1).
EP94111171A 1993-07-23 1994-07-18 Electrical connection terminal Expired - Lifetime EP0637098B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4324820 1993-07-23
DE4324820 1993-07-23
DE4329690 1993-09-02
DE4329690A DE4329690A1 (en) 1993-07-23 1993-09-02 Electrical terminals

Publications (2)

Publication Number Publication Date
EP0637098A1 EP0637098A1 (en) 1995-02-01
EP0637098B1 true EP0637098B1 (en) 1997-10-08

Family

ID=25927971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94111171A Expired - Lifetime EP0637098B1 (en) 1993-07-23 1994-07-18 Electrical connection terminal

Country Status (3)

Country Link
EP (1) EP0637098B1 (en)
AT (1) ATE159128T1 (en)
AU (1) AU673746B2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421484A1 (en) * 1978-03-31 1979-10-26 Socapex SELF-STRIPPING CONTACT ELEMENT WITH RADIAL ANCHORING FOR CONNECTOR, AND CONNECTOR CONTAINING SUCH A CONTACT ELEMENT
FR2464549A1 (en) * 1979-08-31 1981-03-06 Tuloup Pierre Switching keyboard for e.g. telephone set - requires no soldering during assembly and has part-spherical electrodes in three part block
US4350404A (en) * 1980-09-24 1982-09-21 Bell Telephone Laboratories, Incorporated Electrical connector construction
DE3601788A1 (en) * 1986-01-22 1987-07-23 Albert Stewing Device for the electrical connection of the individual wires or double wires of telecommunications and signal cables

Also Published As

Publication number Publication date
AU6744194A (en) 1995-02-02
AU673746B2 (en) 1996-11-21
EP0637098A1 (en) 1995-02-01
ATE159128T1 (en) 1997-10-15

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