EP0205929A1 - Borne - Google Patents

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Publication number
EP0205929A1
EP0205929A1 EP86106905A EP86106905A EP0205929A1 EP 0205929 A1 EP0205929 A1 EP 0205929A1 EP 86106905 A EP86106905 A EP 86106905A EP 86106905 A EP86106905 A EP 86106905A EP 0205929 A1 EP0205929 A1 EP 0205929A1
Authority
EP
European Patent Office
Prior art keywords
pressure piece
clamp
terminal
contact
center plane
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
EP86106905A
Other languages
German (de)
English (en)
Other versions
EP0205929B1 (fr
Inventor
Alfred Michely
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.)
Individual
Original Assignee
Individual
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 DE19853518229 external-priority patent/DE3518229A1/de
Priority claimed from DE19853518228 external-priority patent/DE3518228A1/de
Application filed by Individual filed Critical Individual
Priority to AT86106905T priority Critical patent/ATE48052T1/de
Publication of EP0205929A1 publication Critical patent/EP0205929A1/fr
Application granted granted Critical
Publication of EP0205929B1 publication Critical patent/EP0205929B1/fr
Expired 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
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2406—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation having needles or pins
    • 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
    • H01R4/2495—Insulation penetration combined with permanent deformation of the contact member, e.g. crimping

Definitions

  • the invention relates to a terminal for the electrically conductive connection of a line without prior removal of its insulating sleeve, the diameter of which is equal to or smaller than a predetermined maximum value and which encloses a single-conductor or multi-wire metallic conductor which is at least approximately circular in cross section and has the same diameter how or less than a predetermined maximum value, the clamp being open to at least one of its end faces Has a terminal space into which a length section of the line to be connected can be inserted, and the longitudinal axis of the terminal is defined by the longitudinal axis of such a line length section, the insulating sleeve of which has a diameter corresponding to the predetermined maximum value and which is arranged in the terminal area of the terminal located in the receiving position, and wherein includes the clamp a clamp body, at least one contact pressure piece, each with at least one conical or wedge-shaped contact element intended for penetration of the insulating sleeve and penetration into the conductor, the tip or cutting edge of which lies in
  • the clamp body consists of an approximately rectangular tube section which is formed by folding over a sheet metal stamped part and which, in the interface of its first longitudinal center plane with the transverse center plane located in the middle of its axial length, has a threaded hole in its formed by one narrow side of the clamp body Has top.
  • a flat contact pressure piece formed by a separate sheet metal stamped part, is arranged parallel to the second longitudinal median plane within the clamp body and extends on one side and in one piece into a connecting lug.
  • the contact pressure piece on one flat side of which engages an actuating screw screwed into the threaded bore, has on each side of the transverse central plane a rectangular rectangular sheet metal edge which is bent at right angles, in such a way that both sheet metal edges lie in planes parallel to one another and to the transverse central plane and in the direction of the base part of the Project other narrow side forming the terminal body. Both sheet metal edges are sawtooth-shaped on their free edges.
  • the inner width between the side parts of the terminal body must be chosen considerably larger than the maximum outer diameter of the insulating sleeve, for which the terminal should still be usable.
  • conductors whose insulating sheath is smaller than this maximum value therefore assume an undefined position within the terminal body.
  • the object of the invention is to develop a clamp of the type mentioned in such a way that single-wire (solid) or multi-wire (strand-shaped) conductors of different diameters introduced with or without an insulating sleeve can be securely contacted, with an impermissible material deformation and an impermissible mechanical stability of the conductor Impairment of the terminal contact by operational or time-dependent effects, in particular by a cold flow of the conductor can be reliably avoided.
  • each contact pressure piece and / or counter pressure piece is supported on the load-bearing component via a follow-up spring which transmits the actuating force of the tensioning element.
  • a first stop is provided for each repositioning spring, which engages after a predetermined deformation path of the repositioning spring, bridges it at least partially and transfers power to the contact pressure piece or the counter pressure piece,
  • the contact pressure piece or counter pressure piece is adjusted, so that even with a cold flow of the conductor, a sufficient minimum contacting force is constantly maintained, while on the other hand, for different diameters of insulating sleeves, the conductor is reliably centered on the first longitudinal median plane becomes, which in turn makes it possible to equip the contact pressure piece with contacting elements which can be optimally designed for penetration of the insulating sleeve and penetration into the conductor with a desired penetration depth.
  • terminals including those of a known type
  • predetermined maximum value for the diameter of the insulating sleeve and “predetermined minimum value” for the diameter of the conductor mean those limit dimensions of a line in which a terminal designed according to the invention still reliably fulfills its intended function, even if exceeded these limit dimensions may still have advantages over previously known terminals.
  • the terminal illustrated in Figs. 1-3 is intended for the connection of a line with a metallic conductor 1 and an insulating sleeve 2, which is passed through the terminal uncut, i.e. for example, comes from an electrical power distributor, is contacted by the terminal for connecting a current consumer and leads to a further current consumer.
  • This terminal is also for the connection of a bare conductor or a line that is only free of its insulating sheath at the terminal point and / or a cut, i.e. suitable with its free end inserted line.
  • the terminal can also be used for solid and multi-wire conductors.
  • the clamp contains a clamp body designated in its entirety with 3a, which is composed of a base 4a and a cover 5a which can be lifted off for uncut insertion of the conductor.
  • the terminal has a terminal longitudinal axis o (FIG. 3) which is defined by the longitudinal axis of a length section of the line inserted into the terminal space of the terminal in the receiving position, the insulating sleeve of which has the aforementioned maximum diameter and is in contact with components of the terminal which face the terminal space limit a contact pressure piece explained in more detail later.
  • the clamp also has a first longitudinal center plane Y containing the longitudinal axis 0 of the clamp, which extends centrally through the base 4a and the cover 5a, as well as a second longitudinal central plane X standing perpendicularly thereon, containing the longitudinal axis of the clamp 0 and a central longitudinal plane X dividing the clamp with respect to its longitudinal extent the terminal longitudinal axis 0 perpendicularly penetrated, close to the sectional planes of FIGS. 2 and 3, transverse central plane Z.
  • These axes and planes are also referred to in the explanation of the further exemplary embodiments.
  • the base 4a is formed from a stamped sheet metal part and contains a flat, rectangular base part 6a which is parallel to the second longitudinal center plane X and on the two longitudinal sides 7, 8 of which, in its basic form, are also connected by flat and rectangular side parts 9a, 10a by 90 ° bends, which thus extend to both sides of the first longitudinal center plane Y and parallel to it.
  • From the transverse sides 11 and 12 of the base part 6a are in one piece molded tongues 13a and 14a, which are each bent 180 ° hairpin-shaped inwards between the side parts 9a, 10a so that their substantially flat end sections are at the same distance from the inner surface of the base part 6a and that between them towards each other pointing ends also remain a distance.
  • Each tongue 13a, 14a represents a spiral spring and the two tongues together form a spring 15a effective perpendicular to the second longitudinal center plane X (FIGS. 2 and 3).
  • this extension spring 15a namely on the surfaces of the end sections of the tongues 13a, 14a facing away from the base part 6a, there is a contact pressure piece, designated in its entirety with 16a, which consists of electrically highly conductive material and the shape of a rectangular, approximately the size of the base part 6a has a corresponding strip which is arranged with play between the side parts 9a, 10a.
  • the contact pressure piece 16a extends on one side into a connecting lug 16 ', which leads to a device, not shown, to be connected to the terminal, for example to a switch or a socket or another terminal.
  • a contacting element 17a in the form of a prismatic rib projects from the contact pressure piece 16a in the direction of the cover 5a, whose cutting-like central edge lies in the first longitudinal plane Y and extends on both sides of the transverse central plane Z with an overall length that is greater than the minimum diameter of the conductor 1 to be contacted and is preferably 3 times this diameter.
  • the angle between the surfaces of the rib forming the cutting edge is less than or equal to 45 °.
  • the hardness of the rib must be greater than the hardness of the conductor 1 to be contacted.
  • the Brinell hardness HB of the rib 17a should be over 120 kp / mm 2 . If the contact pressure piece consists of a material that meets these hardness requirements, its rib can also be formed in one piece with it.
  • Each side part 9a, 10a contains two upper and two lower (closer to the base part 6a), inwardly curved tabs 18a and 19a, which overlap or underlap edge regions of the contact pressure piece 16a.
  • the tops of all four lower tabs 19a lie in a common plane parallel to the second longitudinal center plane X and together form a first stop 21a which limits the stroke of the contact pressure piece 16a and the extension spring 15a in the direction of compression.
  • the undersides of all four upper tabs 18a lie in another common plane, which is also parallel to the second longitudinal median plane, but whose distance from the base part 6a is greater, and form a second stop 20a, which is at a distance from the base part 6a such that the Settling spring 15a rests with prestress on the contact pressure piece 16a and holds it non-positively on the first stop 20a.
  • Strip-shaped spiral springs are separated from the side parts 9a, 10a by punch cuts in such a way that they are connected to the remaining material of the side parts only on lines 22a, which are adjacent to the base part 6a and lie in a plane parallel to the second longitudinal center plane X.
  • These spiral springs act as swivel levers 23a, the swivel axes of which thus run parallel to the longitudinal central axis 0, in the associated side parts 9a and 10a, and are approximately at the level of the adjustment spring 15a and the contact pressure piece 16a.
  • spiral springs Adjacent to the lines 22a, the spiral springs are bent inwards and stand in recesses 16 "a provided on both sides of the contact pressure piece 16a and thereby hold the contact piece in a form-fitting manner in the direction of the longitudinal central axis 0.
  • Both spiral springs are adjacent to the free ends remote from the lines 22a or several bending axes, each parallel to the longitudinal axis 0 of the clamp, bent in such a way that inclined surfaces 24a are formed which, in the tension-free state of the bending springs, protrude at least partially over the remaining outer surface of the associated side part 9a, 10a and enclose with it an upwardly open angle which is substantially greater than 90 ° and is significantly smaller than 180 °.
  • the two pivot levers 23a carry jaws 25a on the mutually facing surfaces, the rectangular contact surfaces 26a of which extend on both sides of the second longitudinal center plane X and the transverse center plane Z (FIGS. 2 and 3).
  • the jaws 25a can be formed by sections of the length of the pivot levers 23a themselves, taking up their entire width (in the direction of the longitudinal axis of the clamp: 0), or they can be formed by the shapes made thereon
  • each side part 9a, 10a has rectangular notches on both sides, in such a way that the side part extends between lower end edges, which together form a support surface 27a lying in a plane parallel to the second longitudinal center plane X, with two rectangular sheet metal sections 9'a and 10, respectively 'a extended, which are on both sides of the pivot lever 23a.
  • An outwardly projecting nose is formed in each sheet metal section 9'a, 10'a. All four lugs lie in a common plane parallel to the second longitudinal center plane X and form first notches 28a, which can be brought into engagement with second notches 29a, which will be explained later.
  • the cover 5a consists of a one-piece stamped sheet metal part with a flat rectangular central part 30a, on the two longitudinal sides 31, 32 of which 90 ° bends are also followed by flat and rectangular edge parts 33a and 34a, which in turn easily follow Connect outward-facing rectangular inclined surfaces 35a or 36a.
  • the inner distance between the long sides 31, 32 is equal to or slightly larger than the outer distance between the side parts 9a, 10a of the base 4a.
  • the two tongues together form a counter pressure piece 40a and this in turn is part of a centering and constricting device containing the jaws 25a for the line to be contacted.
  • the edges 39'a, 39 '' a of the counter pressure piece facing the contact pressure piece 16a are designed such that they have a lower penetration capacity into the insulating sleeve 2 due to their greater length extension and / or a larger angle between the surfaces forming them and / or their greater rounding or have the conductor 1 as the contacting element 17a of the contact pressure piece 16a.
  • the clamp is completely symmetrical, both with respect to the first median longitudinal plane Y and with respect to the transverse median plane Z.
  • the jaws 25a (whose contact surfaces 26a can penetrate up to the conductor 1) have the effect that the longitudinal axis L always remains in the first longitudinal center plane Y and u P d is therefore always a central penetration of the contacting element into the conductor 1.
  • the relative position of the components of the terminal is chosen so that for a conductor 1 with the minimum diameter for which the terminal is designed as the lower limit, the first and second notches 28a and 29a can only engage when at the second Stop 21a adjacent contact pressure piece 16a, the distance between the contacting element and the edges is smaller by a predetermined value (for example by 1 mm) than the minimum diameter of the conductor 1 mentioned, the contact surface 27a only slightly approaching the cover 5a and the base slightly beyond the latching position 4a allows.
  • the engagement of the catches 28a, 29a is therefore a reliable indication that the contacting element 17a by an amount necessary for the reliable contacting of the conductor, which also ensures that the contacting element 17a cannot completely cut through the conductor 1.
  • the height of the contacting element 17 a can be limited to a value that is smaller than the minimum diameter of the conductor 1.
  • the adjustment spring 15a which tracks the contact pressure piece 16a and ensures that the conductor 1 between the counter pressure piece 40a and the contacting element (rib 17a) of the contact pressure piece 16a is permanently applied with a minimum force remains clamped, which is sufficient for reliable contacting.
  • the extension spring 15a is preferably dimensioned such that the force to be applied to lift the contact pressure piece 16a from the second stop 20a in the direction of the first stop 21a is sufficient for the contacting element (rib) 17a to cut through the insulating sleeve 2 and penetrate a possible oxide layer of the conductor 1 and can possibly penetrate into it by a small amount, but this force should not be sufficient to completely cut the conductor 1 through the contacting element.
  • the dimensioning and shaping of the tongues from which the counter-pressure piece 40a is formed ensures an elastic and / or plastic deformability to such an extent that even when the contact pressure piece 16a is in contact with the first stop 21a, the contacting element only with a predetermined maximum force can penetrate into the conductor 1 and thus the path of penetration of the contacting element is limited.
  • the dash-dotted lines in Fig. 4 refer to the possibility of extending the sheet metal sections 9'b, 10'b of the side parts 9b, 10b and forming two groups of lugs on them, so that in addition to inner first notches 28b (corresponding to FIGS. 1-3) there are additional outer first notches 28'b.
  • the cover 5b can therefore be held on the base 4b in an inner latching position, in which the conductor 1 is properly contacted (latches 29b engage in latches 28b), as well as in a previous one, with less pressure (for example with the fingers) in the direction of the arrow A achievable outer latching position, in which the cover 5b is already captively connected to the base 4b and a cut conductor can be inserted into the terminal in the direction of its longitudinal axis (notches 29b engage in notches 28'b).
  • the tongues of the cover 5b forming the counter pressure piece 40b have two sections parallel to the first longitudinal central axis Y, so that the deformability is less and that which can be exerted on the conductor 1 Pressure forces are greater.
  • the tongues 13b, 14b formed on the base 4b and forming the repositioning spring 15b have short 90 ° bends 13'b, 14'b at their free ends. Their end surfaces can be brought into contact with the inner surface of the base part 6b, which forms the first stop 21b for the contact pressure piece 16b.
  • the latter has two ribs as contacting elements 17'b, 17''b, which are each on different sides of the first longitudinal center plane Y and have a distance between their cutting-like edges which is less than the minimum diameter of the conductor 1, which is still from the terminal to be contacted.
  • Such a design with two adjacent contacting elements is only intended for special applications, since it has been found that the particular advantages of the terminal according to the invention have been achieved with contacting elements whose tips or edges lie in the first longitudinal center plane Y.
  • Each jaw 25b is extended to facilitate the insertion of the conductor up to close to the cover 5b and its contact surface 26b consists of several sharp edges which run at least approximately parallel to the first longitudinal center plane Y and the transverse center plane Z and are formed on strip-like elements, some of which are made of the material of the pivot lever 23b is punched out and bent (cf. in particular FIG. 5).
  • the lid 5c illustrated in FIGS. 7 and 8 can be used instead of the previously described lid 5a or 5b and, after appropriate adaptation, also for the embodiment according to FIGS. 18-19.
  • the counter-pressure piece 40c is formed by a plurality of tongues punched out exclusively from the middle part 30c of the cover, which are bent inwards by 90 ° about bending axes parallel to the central cross-plane Z and formed by trapezoidal notches which lie in planes 39'c, 39 'parallel to the central cross-plane Z 'c have, which improve the centering and constriction of the line.
  • the extension spring 15d formed by two hairpin-shaped tongues extends at its two free ends over 90 ° bends into a contact pressure piece 16d.
  • the contacting elements 17'd, 17''d of these contact pressure pieces 16d are formed by roof-shaped end faces in the form of very short prismatic ribs in the axial direction, the edges of which lie in the first longitudinal center plane Y.
  • the extension spring 15d is surrounded by a further spring 23d with two hairpin-shaped tongues, each of which is continued at both ends by 90 ° bends in jaws 25d, which have triangular notches at their ends, through which a pair of inclined contact surfaces 26d are formed that intersect in the first longitudinal median plane Y.
  • the edges are in the recording position the contacting elements 17'd, 17''d and the interfaces of the contact surfaces 26d approximately in the same plane parallel to the second longitudinal center plane X.
  • the repositioning spring 15d is connected on one side of the common lower leg to the common lower leg of the spring 23d via a first bracket 55d bent by 180 °, which projects laterally and forms part of a catch 28'd.
  • the further spring 23d in turn is connected to a flat base part 6d via a second tab 56d, which protrudes on the other side of the common leg and forms part of a catch 28''d, which continues in a connecting lug 16. All the components described above form the base 4d of the clamp and consist of a one-piece bent sheet metal stamped part.
  • a cover 5d with edge parts 33d, 34d and locking openings 37d, 38d for the catches 28'd, 28 "d can be placed on this base 4d.
  • In the central part 30d of this cover 5d is a pair of tabs formed by U-shaped punched-outs , which in their entirety form the counter pressure piece 40d, are bent inwards in such a way that two oblique contact edges 39'd, 39''d (FIG. 11) are formed in the area of the transverse center plane Z, which (or their imaginary extensions) meet in the first longitudinal center plane Y. Further openings 57d in the cover 5d serve for the unimpeded movement of the jaws 25d.
  • the line to be contacted is placed on the contact surface 26d and the cover 5d is placed (FIGS. 10 and 11), a first centering already taking place.
  • contact hooks 39'd, 39 "d come into contact with the insulating sleeve 2 and the (further) spring 23d is pressed down, the centering on the first longitudinal center plane Y being strengthened and the Conductor 1 is constricted.
  • the contacting elements 17'd, 17 "penetrate into the insulating sleeve 2 and then to a small extent into the conductor 1.
  • the extension spring 15d is also pressed down until its upper legs come to rest against the common lower leg in the region of the 90 ° bend (stop 21d).
  • stop 21d the common lower leg in the region of the 90 ° bend
  • the third embodiment illustrated in FIGS. 14-16 has a clamping body 3e, which is in principle shaped as a rectangular tube, the cover (first narrow side) 5e of which contains a threaded bore with a screw 60e as the clamping element of the clamp, and at the base (second narrow side) 6e a counter pressure piece 40e is formed with contact edges 39'e, 39 "e, as was explained for the second embodiment.
  • the contact pressure piece 16 e has the shape of a rod with a rectangular cross section, from which a guide arm 58 e and the contacting element 17 e protrude downward.
  • the common part 59 e of a combined spiral spring is divided into three springs parallel to the first longitudinal central plane Y on each side of the transverse central plane Z.
  • the central spring forms the extension spring 15 e for the contact pressure piece 16 e.
  • the outer springs 60 e each extend down between the side wall of the terminal housing 3 e and the contact pressure piece 16 e.
  • the springs 61 e located on the same sides of the transverse median plane Z unite at a distance from the underside of the contact pressure piece 16 e in a jaw 25 e with contact surfaces 26 e pointing downward.
  • the base 4f is formed from a stamped sheet metal part and contains a flat, rectangular base part 6f parallel to the second longitudinal center plane X, on its two longitudinal sides 7, 8 over 90 ° -Bends in their basic form also flat and rectangular side parts 9f, 10f, which thus extend to both sides of the first longitudinal center plane Y and parallel to it.
  • From the end faces 11 and 12 of the base part 6f protrude integrally formed tongues 13f, which are each bent 180 ° hairpin-shaped inwards between the side parts 9f, 10f so that their essentially flat end sections are spaced parallel to the inner surface of the base part 6f and that a distance also remains between their ends to be pointed towards one another.
  • Each tongue 13f represents a spiral spring and the two tongues together form an extension spring 15f effective perpendicular to the second longitudinal center plane X.
  • a contact pressure piece designated in its entirety with 16f, which consists of an electrically highly conductive material and the shape of a rectangular strip approximately corresponding to the size of the base part 6f has, which is arranged with play between the side parts 9f, 10f.
  • the contact pressure piece 16f extends on one side via a bend in a connecting lug 16 ', which leads to a device to be connected to the terminal, not shown, or to another terminal.
  • a contacting element 17f formed by a prismatic rib projects from the contact pressure piece 16f in the direction of the cover 5f, the cutting-like central edge of which lies in the first longitudinal central plane Y and extends on both sides of the transverse central plane with an overall length which is greater than the minimum diameter of the conductor to be contacted 1 and is preferably 3 times this diameter.
  • the angle between the surfaces of the rib forming the cutting edge is less than or equal to 45 °.
  • the hardness of the rib must be greater than the hardness of the conductor 1 to be contacted.
  • Each side part 9f, 10f has two groups of inwardly bent tabs, which, as explained in more detail for the first embodiment, form a first and second stop 21f, 20f, which limit the stroke of the contact pressure piece 16f and the adjustment spring 15f.
  • two strip-shaped bending springs 23f acting as pivot levers are separated from each side part 9f, 10f in such a way that they are only on lines 22f which are adjacent to the front ends of the base 4f and in to the transverse central plane parallel planes, are related to the remaining material of the side parts.
  • the bending springs 23f are bent inwards by 90 ° at their free ends and form with their end sections jaws 25f with contact surfaces 26f running parallel to the first longitudinal center plane Y, which are followed by contact surfaces 26'f designed as inclined surfaces.
  • each side part 9f, 10f has rectangular notches on both sides, such that each side part is formed with a rectangular tongue 9'f, 10 'between lower end edges, which together form a surface 27f lying in a plane parallel to the second longitudinal center plane X. f extended.
  • a rectangular tongue 9'f, 10 'between lower end edges which together form a surface 27f lying in a plane parallel to the second longitudinal center plane X. f extended.
  • an outwardly protruding nose is formed by deformation. All lugs lie in a common plane parallel to the second longitudinal center plane X and form first notches 28f, which can be brought into engagement with second notches explained later.
  • the cover 5f is designed analogously to the first embodiment or its modification according to FIGS. 4-6 and therefore requires no further explanation.
  • the clamp is completely symmetrical, both with regard to the first longitudinal center plane Y, as well as with respect to the transverse center plane.
  • the conductor 1 of the jaws 18f When inserting a line. the conductor 1 of the jaws 18f, irrespective of the diameter of the insulating sleeve 2, is centered and pressed with respect to the first longitudinal center plane Y, so that the contacting element 17f penetrates centrally into the insulating sleeve 2 and the conductor when pressure is exerted on the cover 5f Direction of arrow A is exercised.
  • the fifth embodiment of the terminal illustrated in FIGS. 19-23 is intended for the one-time (no longer detachable) connection of a line having a multi-wire conductor 1.
  • a tool preferably a specially designed crimping tool, is required for production.
  • the clamp consists of a one-piece stamped sheet metal part deformed by bending.
  • Its clamp body 3g has a flat base part 6g, parallel to the second longitudinal center plane X, on the longitudinal sides 7, 8 of which parallel to the clamp longitudinal axis 0, each with a flat rectangular side part 9g, 10g formed symmetrically to the transverse central axis Z.
  • the side parts 9g, 10g thus extend parallel to the first longitudinal center plane Y and on different sides of this plane and are equidistant from it, the distance between their inner surfaces to be mutually corresponding essentially corresponds to the predetermined maximum value of the diameter of the insulating sleeve 2.
  • the distance is to be dimensioned such that a line having this diameter can be introduced between the side parts 9g, 10g with relatively little effort with moderate deformation of the insulating sleeve 2, or that a minimal play remains that the line can be inserted without Force required.
  • the one side part 9g sits in the middle (ie on both sides of the transverse center plane Z) to its free, parallel to the long side 7 Long side 7 'with a rectangular narrow tongue. 9'g away, the height of which is smaller than the distance between the side parts 9g, 10g, but greater than half of this distance.
  • the other side part 10g has a height (distance between the longitudinal sides 8 and 8 1 ) which is smaller by its thickness than the height of the one side part 9g and has a width, measured in the direction of the longitudinal axis 0 of the clamp, that of the one side part 9g about twice its thickness.
  • This other side part 10g continues in the middle (ie on both sides of the transverse center plane Z) to its free longitudinal side 8 'parallel to the long side 8' with a rectangular tongue 10'g, the height of which almost corresponds to the distance between the side parts 9g, 10g, while their width measured in the direction of the terminal longitudinal axis 0 is approximately twice its thickness smaller than the width of the one side part 9g.
  • the tongue 10'g Approximately in the middle of its surface, the tongue 10'g contains a rectangular opening 50g. Starting from each end face, two short cuts 51g, parallel to the longitudinal axis 0 of the clamp, are provided in the tongue 10'g, between each of which a tab remains, which, as will be explained in more detail later, forms a counter-pressure piece 40g in the clamped position, contact edges being formed by a triangular notch 39'g, 39''g are formed.
  • the clamp body 3g also contains two on each end face partially overlapping end pieces running parallel to the transverse center plane Z, which, while leaving a gap to the base part 6g, connect to the side parts 9g and 10g by 90 ° bends.
  • These front parts form later explained pairs of jaws 25g, held immovably on the clamp body 3g, with contact surfaces 26g.
  • the contact surfaces 26g belonging to a pair of jaws run in the region of the contacting element 17g parallel to the first longitudinal center plane Y and in each case at the same distance therefrom. Their mutual distance is smaller than the predetermined minimum value of the diameter of the metallic conductor 1 to be contacted.
  • the parallel contact surfaces 26g continuously increase up to the side parts 9g, 10g widening guide surfaces 26'g.
  • the base part 6g continues into a connecting lug 16 'which establishes the electrical connection of the terminal with another terminal or a device to be connected.
  • the base part 6g continues in a tongue which has a slightly smaller width than the base part 6a.
  • a first section of this tongue has approximately the shape of a hairpin (one leg of which simultaneously forms the base part 6g) and represents a subsequent spring 15g, which with its part curved by approx. 180 ° beyond which a pair of jaws 25g facing away from the connecting lug 16 'protrude outwards and with its approximately straight other leg re-enters the interior of the clamp through the gap between the pair of jaws and the base part 6g.
  • This further leg is followed by a further straight part, which is approximately in the transverse center plane Z and is approximately 90 ° and forms the contact pressure piece 16g of the clamp. This tapers at its free end to an edge located in the first longitudinal center plane Y, this tapering part forming the contacting element 17g of the contact pressure piece intended for penetration into the conductor 1.
  • Fig. 21 the contact pressure piece 16g and the spring 15g is illustrated with solid lines in the clamping position, while the dash-dotted line shows the position of these parts in the receiving position of the clamp.
  • This Fig. 21 shows that between the 90 ° bend connecting the contact pressure piece with the repositioning spring and the base part 6g a first stop 21g is formed which limits the path of the contact pressure piece relative to the rest of the terminal housing in the compression in the repositioning spring, and that a stop acting in the opposite direction there is a second stop 20g between the approximately straight part (leg) of the repositioning spring 15g and the one pair of jaws 25g.
  • the contacting element 17g begins to penetrate into the insulating sleeve 2 and then into the conductor 1, the force required for this penetration increasing progressively. If this force reaches a certain value, the second stop 20g (FIG. 21) is lifted and the extension spring 15g is increasingly compressed until finally the first stop 21g takes effect and prevents further movement of the contact pressure piece 16g with its contacting element 17g .
  • the force exerted on the line in the direction of arrow A is thus fully effective for the penetration of the contacting element 17g into the conductor 1 (apart from frictional forces on the guide surfaces 26g), so that the contacting element penetrates deeply into the conductor.
  • the tongue 10'g is bent inward in the direction of the arrow B 'by approximately 90 °, then the tongue 9'g is bent in the direction of the arrow B ", the free end of which is further bent into the opening 50g.
  • the two tabs of the tongue 10 'g are simultaneously or subsequently bent inwards by approximately 45 °, the contact edges 39'g, 39''g being able to penetrate as far as the conductor 1 through the insulating sleeve 2.
  • the bent components mentioned form a counterpressure piece 40g in their entirety to the contact pressure piece and, together with the contact surfaces 26g, also form part of the centering and constriction device of the terminal.
  • FIGS. 20-23 The clamp in the clamped position is illustrated in FIGS. 20-23.
  • the conductor 1 although it is practically impossible for it to evade through the counter pressure piece and the contact surfaces 26g, tends to move away from the contacting element 17g loosen, the extension spring guides the contact pressure piece with the contacting element 17g, lifting off from the first stop 21g.
  • the line is also constricted, i.e. the line is compressed with several forces directed in the direction of the line longitudinal axis L.
  • the aim of this constriction is to make the centering more effective, even if, for example, the insulating sleeve has lower or non-uniform mechanical deformation resistance at higher temperatures and, if the line contains a multi-wire metallic conductor, the individual wires are better bundled so that they are connected with a Apply sufficient pressure to the contacting element for good contact.
  • the centering and constriction of the line is maintained until the contacting process is complete (the contacting element has assumed its intended positions within the conductor) and is also maintained as long as the clamp is in the clamping position.
  • the aim of this measure is to transfer the contacting element into the most advantageous (central) position within the conductor (also with the repositioning explained below).
  • the contact pressure piece After completing the contacting process and as long as the clamp is in the clamped position, the contact pressure piece is held under a spring preload in the direction of the counter pressure piece by means of a spring member specially provided for this purpose, spring travel being provided which is greater than the spring travel which is due to the elastic properties of all known materials, even in the case of components which are not specially shaped for their spring action, inevitably also results in known terminals.
  • the aim of this measure is to maintain a low contact resistance between contacting and head, even if the conductor or when e between the conductor and the counterpressure member deformed befindaji part of the insulation over time and / or the Tried to lift contacting element, for example by cold flow, heat, vibration of the terminal or external forces acting on the line.
  • a stop which limits the bending path of the extension spring and the stroke of the contact pressure piece and which is arranged and designed such that when it comes into effect the contacting element assumes a position in the terminal which corresponds to the intended final position of the contacting element in the conductor in the clamping position corresponds to the clamp.
  • the purpose of the stop is, on the one hand, to provide a sufficiently high force on the contact pressure piece carrying it for the deep penetration of the contacting element and, on the other hand, through the activation of the stop, to provide a reliable indication that there is sufficient contact between the contacting element and the conductor.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)
EP86106905A 1985-05-21 1986-05-21 Borne Expired EP0205929B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86106905T ATE48052T1 (de) 1985-05-21 1986-05-21 Klemme.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3518228 1985-05-21
DE19853518229 DE3518229A1 (de) 1985-05-21 1985-05-21 Klemme
DE3518229 1985-05-21
DE19853518228 DE3518228A1 (de) 1985-05-21 1985-05-21 Klemme

Publications (2)

Publication Number Publication Date
EP0205929A1 true EP0205929A1 (fr) 1986-12-30
EP0205929B1 EP0205929B1 (fr) 1989-11-15

Family

ID=25832406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106905A Expired EP0205929B1 (fr) 1985-05-21 1986-05-21 Borne

Country Status (7)

Country Link
US (1) US4834672A (fr)
EP (1) EP0205929B1 (fr)
AU (1) AU602655B2 (fr)
BR (1) BR8606680A (fr)
DE (1) DE3666999D1 (fr)
DK (1) DK32387A (fr)
WO (1) WO1986007199A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU599555B2 (en) * 1987-12-14 1990-07-19 Minnesota Mining And Manufacturing Company Two step wire connection and cut-off terminal
US5725390A (en) * 1996-11-13 1998-03-10 Watts; Edward Francis Electrical splice box
US5831579A (en) * 1997-04-15 1998-11-03 Ericsson, Inc. Latch mechanism for mobile communication devices
DE19846107A1 (de) * 1998-10-07 2000-04-13 Dieffenbacher Schenck Panel Walze zum Streuen und Abbremsen rieselfähiger Materialien
DE20305154U1 (de) * 2003-03-28 2004-08-19 Weidmüller Interface Gmbh & Co. Anschlußvorrichtung mit Piercingkontakt
US20090117774A1 (en) * 2006-11-10 2009-05-07 Janos Legrady Surface mount crimp terminal and method of crimping an insulated conductor therein
US7591666B2 (en) * 2006-11-10 2009-09-22 Zierick Manufacturing Corporation Surface mount crimp terminal and method of crimping an insulated conductor therein
JP5948180B2 (ja) * 2012-07-31 2016-07-06 タイコエレクトロニクスジャパン合同会社 電気端子
IT201700075884A1 (it) * 2017-07-06 2019-01-06 Tyco Electronics Amp Italia Srl Connettore elettrico
DE102017222671A1 (de) * 2017-08-07 2019-02-07 Robert Bosch Gmbh Kontaktierelement

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US3510827A (en) * 1967-11-14 1970-05-05 Etc Inc T-tap connectors
DE2139712A1 (de) * 1971-08-07 1973-02-15 Bergner Fa R Abzweigklemme
FR2459560A1 (fr) * 1979-06-19 1981-01-09 Alsthom Cgee Bornes de connexion pour conducteur electrique isole
GB2130816A (en) * 1982-11-16 1984-06-06 Derek Hayes Improvements in gripping or locating devices

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FR1534124A (fr) * 1967-06-16 1968-07-26 Connecteurs Albert Bonneau C A Conecteur auto-isolant pour travaux sous tension
DE1765200A1 (de) * 1968-04-18 1971-07-15 Siemens Ag Anschlussklemme fuer Koaxialkabel
DE1765880B2 (de) * 1968-07-31 1973-03-22 Fa. Richard Bergner, 8540 Schwabach Kabelabzweigklemme
FR2058441A5 (fr) * 1969-09-04 1971-05-28 Sicame Sa
FR2058620A5 (fr) * 1969-09-18 1971-05-28 Desanti Etiennette
DE7045991U (de) * 1970-12-12 1971-03-18 Schmidt G Abisoherfreie und wiederverwendbare Kontaktverbindung
CA963552A (en) * 1971-06-28 1975-02-25 James H. Bazille (Jr.) Solderless wire connector
DE2232556B1 (de) * 1972-07-03 1973-01-18 Hans 5463 Unkel Simon Elektrische Klemme
DE2401504C2 (de) * 1974-01-12 1975-10-30 Karl Pfisterer Elektrotechnische Spezialartikel, 7000 Stuttgart Erdungsklemme
AU476011B2 (en) * 1975-04-09 1976-09-09 Karl Pfisterer Elektrotechnische Spezialartikel Branch terminal
GB1571720A (en) * 1977-06-18 1980-07-16 Amp Inc Electrical connector
US4407557A (en) * 1980-07-16 1983-10-04 Derek Hayes Electrical coupling device
FR2498016A2 (fr) * 1981-01-09 1982-07-16 Verlant Beaurain Connecteur de derivation pre-isole, notamment pour lignes electriques sous tension

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Publication number Priority date Publication date Assignee Title
US3510827A (en) * 1967-11-14 1970-05-05 Etc Inc T-tap connectors
DE2139712A1 (de) * 1971-08-07 1973-02-15 Bergner Fa R Abzweigklemme
FR2459560A1 (fr) * 1979-06-19 1981-01-09 Alsthom Cgee Bornes de connexion pour conducteur electrique isole
GB2130816A (en) * 1982-11-16 1984-06-06 Derek Hayes Improvements in gripping or locating devices

Also Published As

Publication number Publication date
DK32387A (da) 1987-03-20
US4834672A (en) 1989-05-30
DK32387D0 (da) 1987-01-21
BR8606680A (pt) 1987-08-11
AU602655B2 (en) 1990-10-25
EP0205929B1 (fr) 1989-11-15
AU5953186A (en) 1986-12-24
WO1986007199A1 (fr) 1986-12-04
DE3666999D1 (en) 1989-12-21

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