WO2007087859A1 - Insulation displacement contact for braided wires - Google Patents

Insulation displacement contact for braided wires Download PDF

Info

Publication number
WO2007087859A1
WO2007087859A1 PCT/EP2006/011646 EP2006011646W WO2007087859A1 WO 2007087859 A1 WO2007087859 A1 WO 2007087859A1 EP 2006011646 W EP2006011646 W EP 2006011646W WO 2007087859 A1 WO2007087859 A1 WO 2007087859A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
characterized
insulation displacement
displacement contact
contact according
mandrel
Prior art date
Application number
PCT/EP2006/011646
Other languages
German (de)
French (fr)
Inventor
Helmut Würz
Bernd Limbacher
Original Assignee
R. Stahl Schaltgeräte 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

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact and means for effecting or maintaining such contact
    • H01R4/24Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCBs], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50Fixed connections
    • H01R12/59Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/62Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCBs], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50Fixed connections
    • H01R12/59Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • H01R12/67Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact and means for effecting or maintaining such contact
    • H01R4/24Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242Connections 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 being plates having a single slot
    • H01R4/2425Flat plates, e.g. multi-layered flat plates
    • H01R4/2429Flat plates, e.g. multi-layered flat plates mounted in an insulating base
    • H01R4/2433Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot

Abstract

An insulation displacement contact for braided wires has at least one spike entering the braided wire bundle. In order to ensure the contact force, the braided wire bundle is flanked by two supporting faces, with the result that the contact force or contact-pressure force of the individual braided wires against the spike does not need to be applied exclusively by the core insulation. This results in a contact safety which ensures that the contact meets the requirements for explosion protection 'EX-e' (increased safety).

Description

IDC for wires

The insulation displacement technology is widely used for solid wires in the meantime in practice. The reason for this is a little labor-intensive contact that can be optionally carried out fully automatically. Furthermore, insulation displacement contacts are characterized by a higher electrical safety than the classical screw terminals.

In the insulation displacement technology of the not isolated from solid wire is pressed with a tool in an insulation displacement slot. Here, the insulation is cut by the slot edges. The distance between the slot edges is matched to the diameter of the full wire, in such a way that a desired contact pressure is generated without the solid wire is cut off. The actual contact area is relatively well sealed by the remaining insulation against environmental influences. on with a corrosion can be expected only in a long period of time or not at all either. The Klemmverhaltnisse between Schlitzran- countries and the solid wire, incidentally, are very mechanically stable and long-term fixed.

For contacting Litzendrahten it is known, m stab a cylindrical mandrel with angescharfter tip through the insulation, the Drahtbundel the strand forming. This type of contact also has the advantage, the actual KonnaKtstelie due to the remaining insulation that fits tightly to the mandrel relatively well protected. A disadvantage of this contact is the jedocn fact that the pressing force of the Litzendrahte is produced on the mandrel by the force of the jolt jump Adermsolation. When the Adermsolation softens as a result of higher temperatures, the contact pressure and thus the contact resistance between the Litzendrahten and the driven mandrel reduced.

The contact pressure also changes when the insulation creeps over time.

Starting herefrom, it is an object of the invention to provide an insulation displacement technology for strands prepared.

This object is achieved by a erfmdungsgemaß arrangement having the features of claim 1.

The new arrangement is a modified form of insulation displacement contact for full wire. The new arrangement has two slot nozzle bounding surfaces. The nozzle surfaces run substantially parallel to each other and have a spacing which is matched to the diameter of the to be contacted Litzenbundels. The socket surfaces are designed at their free ends so that they penetrate the core insulation during contacting.

In addition to this abutment of the two side walls, a mandrel is provided at least, the m penetrates the braid to print each Litzendrahte against the laterally and tangentially next to the strand extending side cheeks, de biasing force that generates the contact force, thus becomes a very large part due to the cooperation-acres the mandrel and generates the page long. Since the Litzendrahre are stranded together and thus have an impact, the strand, the two partial areas is through the mandrel m divided, yet held together and can not be distributed as a loose mixture as desired in the gap between the mandrel and the adjacent side wall is, and Although m in the direction parallel to the longitudinal extension of the gap. Such a free distribution was cause a reduction of the contact force.

Û to get the contact force upright, it comes with the new arrangement not so much on the holding action of Aαernisolation to. Even if the wire insulation yields or creeps, the twisting of the strand, in conjunction with the driven mandrel that the Litzendrahte be held with sufficient contact force to the metallic contact areas.

In the new arrangement, it is sufficient if one of the two parts, either the abutment or the at least one mandrel, electrically conductively connected to the object to be contacted is connected. Preferably, both parts are electrically conductively connected to provide as large a contact area and a low contact resistance.

The new kind of contact has such a high level of reliability that it is suitable as an "EX e" contact in accordance with the safety regulations for explosion protection. The use of a simple mandrel without the abutment with the two side panels does not meet these safety regulations.

Favorable conditions result when the side wings have in the direction parallel to the heddle a width which is between 0.2 and 1.5 mm. Thus, a more favorable compromise between size of the contact area and that distance is reached, must be stripped so that contact is even made.

The nozzle surfaces may be, on its side facing strand flat surfaces that are particularly easy to produce. A crown is also possible.

Favorable mechanical conditions result when the side walls are connected at one end to each other mechanically. Em Such a structure can be achieved when the side walls are formed on a common stamped and bent part. The connecting piece for the two side walls can simultaneously serve also as an abutment for the contacted strand.

The penetration of the side cheeks m, the conductor insulation is facilitated if the side walls at that end which is to penetrate through the insulation during contacting, are tapered to form a pointed tip or a cutting edge, wherein the cutting or tips of the two side walls facing in the same direction.

In the case of cutting, it is favorable if these m are aligned parallel to the direction of longitudinal extension of the strand to kontaktieren- because characterized damage to the strand is largely eliminated.

The cutting edges of the respective end can also be perpendicular to facilitating penetration into the insulation that prevents a particular Abschalwirkung. The thereby caused sectional areas in the insulation are m a common plane which is substantially perpendicular to the longitudinal axis of the strand. These blades can m towards the nozzle surfaces converge like a funnel, which facilitates the centering and the damage of the strand vermej det.

The nozzle surfaces can be designed prismatic at its leading end at KontakLieren.

Those Beieiche the nozzle surfaces, which occur after the final addition to the contact wire, are preferably parallel to each other.

The nozzle surfaces may be planar surfaces, or slightly convex in the direction of the strand.

Furthermore, the nozzle surfaces of sharp or rounded edges may be limited.

The mandrel, which will be imprinted into the strand to the strand in the area between the nozzle surfaces corresponding to wide, can have the shape of a cylindrical pin, which is provided at the penetrating end with a tip. It is also possible that the mandrel has a rectangular cross-section which is provided at its end penetrating the braid with a prismatic Spit zenkonformation.

The contacting can be improved if more than a mandrel is used which penetrates through the insulating m penetrates the actual conductor strand. The mandrels are then lined up along the strand. Expediency maßigerweise at least is in this case a mandrel between the two nozzle surfaces. The other two pins may be mutually pivoted relative to the central mandrel for preventing generated by adjacent mandrels through a gap in the conductor strand.

The mandrels may be formed on a common stamped part, which significantly simplifies production A particularly permanent contact is achieved when an abutment is present between the nozzle surfaces, against which the wire with the insulation is pressed.

A corresponding nozzle surface can then also be provided next to the mandrel. This nozzle surface can be formed like a cut to allow penetration of the insulation to give rise to a direct contact between the strand and the nozzle surfaces.

The spike does not necessarily m penetrate the strand between the two nozzle surfaces. It can be far also offset against the nozzle faces a piece in the longitudinal direction of the Litzenbundel. This larger tolerances are optionally possible and there is also the possibility that sharp ending support faces a possible Oxythaut the Litzendrahten easier to cut.

Moreover, further developments of the invention are the subject of dependent claims,

In studying the description of the figures it is clear that these limited to presenting basic embodiments and all possible Merkmalspermuta- are not shown functions. As part of the solution of the task, the individual technical features of the various exemplary embodiments are interchangeable.

In the drawing, a AusfuhrungsbeispieJ of the object of the invention is shown. Show it:

Figure 1 shows the contacting of a two-wire cable to a circuit board using the inventions dungsgemaßen insulation displacement contact, in a perspective Expiosionsdarsteilung.

FIG. 2 shows the abutment of the inventive insulation displacement contact according to Figure 1, in an enlarged perspective view; FIG.

Figure 3 shows the interaction between the abutment and the mandrel during the contacting of the two Litzenbundel of the two-wire cable of Fig. 1.

Fig. 4, 5 and 6 for exemplary embodiments of the mandrel and

Fig. 7 is an inventive shaped insulation displacement contact for the strands, wherein the mandrel is arranged rigidly between the nozzle surfaces.

As an example of the application of the invention, the contacting between a circuit board 1 and a two-pole cable 2 is illustrated in Fig. 1. On the circuit board 1 is not specifically illustrated conductors and components are arranged. Their representation is not necessary, since a circumstance is irrelevant for understanding the invention.

When the cable 2 is a type of flat cable with an outer insulation 3, which is Querschm TTS profile as shown by two mutually parallel flat sides 4 and 5 is limited. In the outer insulation 3 next to each other two cable cores 6 and 7 are embedded, which shows how the enlarged view in Fig. 3, each consisting of a stranded wire 8 and a thick-walled core insulation 9 are formed. The individual Litzendrahte 11 of the stranded wire 8 are twisted together m a known manner, so that there is an approximately rotationally symmetric within the conductor strand Adermsolation. 9

The Schneiklemmkontakt, with each cable core is kontak- advantage, consists of a Angelo ended on the circuit board 1 and a counter or mandrel 12 abutment 13 together.

The mandrel 12 is in the exemplary embodiment of FIG. 1, a rotationally symmetrical elongated body with a diameter 20% to 50% smaller than the diameter of the braid 8. At its free end it is provided with a conical tip 14. The rear end of the mandrel 12 is a cylindrical shaft 15 m over having a significantly larger diameters. At the point of transition between the shaft 15 and the mandrel 12, a frusto-conical shoulder gives 16th

in turn, the shaft 15 carries at its end remote from the mandrel 12 end a cylindrical extension 17 which is hindurchfuhrt through a hole m the circuit board 1, and soldered at 18 to a Leite web.

The shape of the abutment 13 is obtained from the enlarged view of Fig. 2. Thereafter, forming the fork-shaped abutment 13, which is produced as Blechstanz- and -biege- part, for example made of brass, two mutually parallel side walls 19 and 21, the bottom at its end are interconnected by a base portion 22 and define a gap. The width of the gap is slightly, approximately 0.1 to 0.2 mm larger than the diameter of the stranded wire 8 with a wire diameter of about 0.7 mm.

The base part 22 is made up of a rounded backs 23 and two extending from the jerks 23 legs 24 and 25th The two legs 24 and 25 lie parallel to one another and define between them a parallel to the backs 23 and the side walls 19, 21 extending groove. 24 and 25 go on its upwardly facing end face of the two legs smoothly into the side cheeks 19 and 21 via emstuckig. Each side jaw 19, 21 thus has a width, measured m the depth direction perpendicular to the backs 23 of the base part 22, the angle of the width of Schen- 24 corresponds to minus the curved back 23rd The upper end of the ridge 23 may serve as a support for the cable core or the cable.

The two side cheeks 19, 21 are mirror images of each other, so that it suffices merely to illustrate one of the side cheeks in detail. The explanation applies analogously to the other side cheek, there being the homologous structural elements are provided with the same reference numerals.

As can be seen, forming each side wall 19, 21 a planar StutzfJache 26 of the other side wall 19, 21 is turned. The nozzle surface 26 goes to each other parallelelen sharp edges 27, 28 m narrow side surfaces 29 over, because of which the representation only one is visible. The width of the side face 29 corresponds to the material thickness of about 0.5 to 0.7 mm.

Parallel to the nozzle surface 26 proceeds a jerking - flat 27 which merges smoothly and without a step into the outer side of the leg 24 and 25th

The socket surfaces 26 are smooth and heelless continuations of the inner side of the respective leg 24, 25th

Each of the two side walls 19, 21 terminates at its upper end m of a pyramidal tip structure 30 and 31, respectively, each terminating in cutting 32nd The base of the pyramid-shaped tips 30, 31 corresponds to the cross-sectional area of ​​the respective side cheek, which is why the neck surface 26 smoothly m the relevant page of the corresponding pyramid-shaped tip 30 continues 31st The Rυckenflache 27 and the two side surfaces 29, however, go over into the relevant area of ​​the pyramid-shaped tip 30, 31 at a kink 33rd For ease of illustration, for the respective surfaces of the pyramid-shaped tip 30, 31 the same reference numerals as for the underlying part of the side cheek 19, used 21st

The abutment 13 is seated in a layer made of insulating material socket 34, which contains the inclusion of the abutment 13 a respective pocket 35, in which the abutment 13 is plugged to the base part 22 forward, as shown, until only the two side cheeks 19, 21 protrude upward beyond a plane sensing surface 36, the depth of the pocket 35 corresponds to the height of the back 23rd

In the socket 34 i st single] I bestuckt one of the two pockets 35 with an abutment. 13 Since a two-wire cable is to be contacted, 34 containing the text accordingly two pockets 35, each provided with an abutment. 13

With the socket 34 corresponds to a plug socket 37. Since the other two frames 34 and 37 are not part of the invention satisfies a less detailed discussion.

The upper mount 37, also made of insulating material is composed of a bar 38 and two integrally formed thereon together downward facing legs 39 and 41st Between the two legs 39 and 41, 38 the ribbon cable 2 which is held pressed against the underside of the beam 38 by means of an inserted staple 42 which is verastet between the two legs 39 and 41 extends on the underside of the beam. The clip 42 contains on its underside unrecognizable openings for the passage of the two abutments. 13

On the top of the beam 38 there are two tubular Guided Tours 43 which are aligned with de strands 8 of the two cable cores 6, 7, in such a way that cooperates a leadership 43 with a cable wire 6 and seventh The two Guided Tours 43 serve the leadership of the shank 15 of the mandrel 12th

Laterally adjacent to the two Guided Tours 43 distance pieces 44 are still provided with through holes 45th

The Distanzstύcke 44, the bar 38 and the two legs 39 and 41 are one-piece plastic, is detachably engaged with each other moldings made of insulating material, while the clip 42, which serves to temporarily hold the two-pole cable. 2

The two limbs 39 and 41 protrude from the bracket 42 and penetrate in the assembled state in corresponding four-sided openings 46 in the lower frame 34 a.

Laterally adjacent to the four-sided openings 46 are holes 47 for fixing screws passing drove through holes in the circuit board 1 and the bores 45 of the distance pieces 44 to be screwed into the bore 47th In this way, the two frames 34 and 37 are pressed against each other and screwed to the printed circuit board. 1 Fig. 3 illustrates the contacting of one of the two cable cores 6, 7 press-contact with the inventive shaped cutting, which is composed of the mandrel 12 and the thrust bearing 13. In the representation m Fig. 3 are replaced parts and the other in explaining the contacting things are not required are omitted. The section through the two-pole cable 2 is perpendicular to the longitudinal axis 8 of the Adernbundel The abutment 13 is disposed so that the viewer's gaze m is the U-shaped base part 22nd

When connecting the cable 2 to the circuit board 1, the cable 2 is first inserted between the two legs 39 and 41 and fixed with the aid of estimated steady bracket 42nd Then are put together the two capturing location 34 and 37th Here, 41 penetrating the leg 39, in the rectangular openings 46 and help to create a forced centering m the plane paralleJ to the surface 36. When Zusammendrucken of the two socket parts 34 and 37 of the abutment member 13 penetrates the two blades 32 advance in the Außemsolation 3 on. In the course of compression of the capturing location 37 and the 34 blades 32 penetrate deeper and deeper by the Außemsolation 3 and finally also begin to penetrate the core insulation 9th At the end of the mating movement, the two nozzle surfaces are let 26 recognize either in the region of the tips 30 and 31, or in the lower part, as FIG. 3, the side of the respective Adernbundel 8. The blades 32 are parallel with the longitudinal axis of the strand. 6

The same situation happens to the other cable core 7, 3 for clarity with the associated abutment 13 and the mandrel 12 are not shown here in Fig..

After both capturing location 34 and 37 zusammengefugt fixed, the printed circuit board 2 is fitted, the mandrel slides through the associated leadership 13 12th It is passed through the rohrformige leadership 43 so as to be approximately centered with its point-shaped outgoing conical tip 14 meets the Adernbundel. 8 At the end of the supply sammensteckDewegung the position of FIG. 3 is reached.

In the example shown Ausfuhrungsbeα game is 1, only the cylindrical mandrel 12 "electrically connected to the conductor 1, respectively. About its cylindrical outer peripheral surface, makes the metallic contact with the Litzendrahten 11, the electrical contact between the respective cable core and the respective circuit trace on the printed circuit board is 1 was prepared. In the illustrated example Ausfuhrungs- the nozzle surfaces 26 form only abutment, the individual Litzendrahte be pressed 11 against the penetration of the electrically conductive mandrel 12.

Upon penetration of the mandrel 12, the nozzle surfaces are resiliently printed 26 on the side walls 19 and 21 is slightly outwardly so that the spring force exerted by the side cheeks 19, 21, ensures that the Litzendrahte bear under prestress against the mandrel 12 , It is not necessary to necessarily to produce a metallic contact between the Litzendrahten 11 and the nozzle surfaces 26th Therefore, there is also no need for the abutment 13, which is seated in the lower frame 34 is once more additionally electrically connected to the printed circuit board. 1 However, it is also possible to increase the contact area, to also use the nozzle surfaces 26. It is sufficient, yet another (not shown) smoothly Leading conductor connection from the corresponding abutment 13 on the printed circuit board manufacture.

Thus, the electrically conductive contact without destroying the Litzendrahte 11 takes place, it is expedient if the pyramid-shaped tips 30, 31 so transformed are that the outside surface 27 merges smoothly into the respective pyramid surface, while the interior support surface is bent at the bending point 32 26th Thereby, the nozzle surfaces extended 26 m toward the blades 32 and funnel-shaped, it is possible to displace the isolati onsmaterial the penetration of the blades 32, to a metallic electrical contact between the Litzendrahten 11 and the nozzle surfaces 26 is brought about.

The Materialverdrangung is favored when the nozzle surfaces 26 are flat not as shown, but for example, curved cylindrically, with the Krummungsachse is parallel to the longitudinal extension of the respective side cheek 19, 21st

According to the twisting of the Litzendrahte 11 to be mutually substantially locked. Hereby it is avoided that the overlying pile of individual Litzendrahten 11 upwards or downwards m the gap between the mandrel 12 and the nozzle surface in question evades 26 by the penetration of the mandrel 12 and the contact force subsides when the plastic of the outer insulation 9 or the Außeni solation 3 yields or flow away. Instead of allowing the nozzle surfaces 26 terminate at cutting edges 32 which are parallel to the longitudinal extension of the at kontak- animal forming Litzenbundels, it is also possible to use dot-shaped peaks and so on ¬ to space them to each other that their distance is slightly smaller than corresponds to the diameter of the respective Litzenbundels. 8 When penetration of these point-like tips of the core insulation is cut 9 and at least one of the nozzle surfaces will produce a metallic contact with the adjacent Litzendrahten. 11 By using the point-shaped tip of the insulating material is displaced uniformly in every direction.

In the exemplary embodiment of FIG. 3 is located approximately centrally in the contacted state of the mandrel 12 between the opposing faces 26 stub, it can also be offset from the longitudinal direction of the m Adernbundels. 8 This promotes cutting of the residual insulation by the sharp edges 27 and 28, when the mandrel is driven 12, so as to produce an electrically conductive contact with the side walls 19 and 21st

In place of the cylindrical mandrel 12, as m Fa g. 3 is shown, a mandrel can be used as it is included m Fig. 4. The mandrel is here stamped from a thin sheet metal part 48 and dreickformig designed. The side of the mandrel 12 there are two V-shape recesses 49, the next blank schneidenformige peaks occur 51 and 52nd At the top of the sheet metal stamping solder contributes legs 53rd

The mandrel 12 itself terminates m a schneidenformigen tip 54 which is transverse to the sheet metal part 48th The mandrel shown is preferably used in that it in addition to the side surfaces 29 m, the corresponding cable wire 6, 7 penetrates in the axial direction of the strand. 8 cause the V-shaped recesses 49, that the adjacent region of the stranded is clamped bundels 8 and can not escape laterally.

In the embodiment according to Fig. 5, the punching portion 48 is provided laterally next to the mandrel 12 with straight shoulders 55 which lie in a common plane. These shoulders 55 act m a similar manner as the V-shaped recesses 49 as a hold. With their help can be prevented that wears off, the contact force during the flowing away Adermsolation 9th Expediently can between the shoulders 55 and an upper edge of the back part 23, which is designated in Fig. 2 at 56, the Adernbundel be locked up on all sides. For this purpose must be provided according to ensure that the shoulder 56 can penetrate the core insulation, for example, by the shoulder 56 is sharpened accordingly.

The penetration of the shoulder 55 can be improved when, as illustrated at 57 by dotted lines, is shaped to a cutting edge.

The embodiment for the mandrel 12 of Figures 4 and 5 is applied so that the cutting edge is parallel to the longitudinal extension of the Adernbundels 8 54th The base body 48 is with its flat side parallel to a plane which intersects the longitudinal axis of the Adernbundels 8 at right angles.

In the embodiment according to FIG. 6, the mandrel 12 is provided with a Fasenflache 58, and there is a pointed tip 59. The pointed tip 59 allows penetration of the triangular mandrel 13 even when the flat side of the base body 48 parallel to the longitudinal axis of the wire bundle is aligned. 9 The side cutting edges 51 and 52 can penetrate to additional points of contact with the wire bundle 8 to provide both the outer insulation 3 and the core insulation. 9 In contacted state, the flat side of the base body 48 is parallel to the support surfaces 26, wherein the mandrel 12 is located centrally between the support surfaces 26th Laterally adjacent to the two supporting surfaces 26 continue to make the cutting edges 51 and 52 on the wire bundle 8 contact. It is thus achieves a very large contact surface.

In the embodiment of Figures 1 to 6 is always assumed that the mandrel 12 enters from another side in the cable, as the two support surfaces 26, Fig. 7 shows a modified embodiment in which the mandrel 12 and the support surfaces penetrate the insulation during contacting from the same side.

In turn, the embodiment of FIG. 7 is based on a stamped sheet metal part that creates a main body 48. The main body 48 forms, at its downwardly pointing end of the two side cheeks 19 and 21 which have a square cross section in this case. The opposing sides of the side cheeks 19 and 21 are, in turn, the support surfaces 26. The side walls 19 and 21 are at their free end by a series of bevelled surfaces 61 and 62 are designed so that a cutting edge 63 is formed. A respective cutting edge 63 bears the other side wall 21. The two cutting edges 63, pointing to each other, extend like a funnel starting from the nozzle surfaces 26 in the direction of their free ends. Between the two nozzle surfaces 26 of the base body 28 turns into a einstuckigen mandrel 12 having a rectangular cross section and terminating in a prismatic tip 64 to form a cutting 65th

When such a contact part of Fig. Is attached to a single core 7, by cutting the two cutting edges 63, the core insulation 9, This ensures that because the strand makes 8 metallic contact with the mutually parallel support surfaces 26 in the connection. Upon further penetration of the cutting edge 65 finally engages the core insulation 9 in contact. This contact occurs only when the Litzenbundel has completely left the eight cutting 63rd Nunmehi penetrates the edge 65 which is parallel to the longitudinal axis of the Adernbundels 8, through the core insulation 9, and eventually into the braid. 8 The individual wires of the stranded wire 9 are thereby constrained in the slots between the mandrel 12 and the two nozzle surfaces 26 opposite and make appropriate contact.

The anvil or anvil, which is required to prevent escape of the cable core is not shown in Fig. 7. It can consist of a suitable insulating material, which contains a bag similar to the bag 35 and the projecting live tips 30 and 31 receives after the contacting.

An insulation displacement contact for the strands has at least one penetrating the Litzenbundel mandrel. To provide the contact force sure Litzenbundel of two support surfaces flanked so that the contact force or contact pressure of the individual wire strands against the mandrel need not be provided solely by the core insulation. This creates a secure contact, which ensures that the contact protection regulations the explosion "EX e" (increased safety) met.

Claims

claims:
1. insulation displacement contact (12,13) ​​assembled to from Litzendrahten (11) the strands (6,7) which are each insulated by an insulation (9),
with an abutment (13) which has two mutually parallel side walls (19,21) which extends nozzle faces at least approximately parallel to each other (26; Dilden that are opposite each other and together define a slot which is open to an end hm, wherein the distance between the nozzle surfaces (26) from one another smaller than the outer diameter of the outer insulation of an insulated stranded wire to be contacted (8), and
having at least one mandrel (12) adapted _ st penetrate into the wire (8) to bias the Litzendrahte (11) relative to the nozzle surfaces (26).
2. Insulation displacement contact according to claim 1, characterized in that the side cheeks (19,21) have a width in the direction parallel to the wire (8), which lies between 0.2 and 1.5 mm.
3. Insulation displacement contact according to claim 1, characterized in that the nozzle surfaces (26) are plane surfaces.
4. Insulation displacement contact according to claim 1, characterized in that the side cheeks (19,21) are connected at one end to each other mechanically.
5. Insulation displacement contact according to claim 1, characterized in that the side cheeks (19,21) are formed on a common stamped and bent part.
6. Insulation displacement contact according to claim 1, characterized in that the side cheeks (19,21) in the region of that end which urges the contact through the insulation (9), to form a tip or a cutting edge (32,63) are tapered, wherein the cutting edges (32,63) or peaks show the two side cheeks (19,21) in the same direction.
7. Insulation displacement contact according to claim 6, characterized in that the cutting edges (32) are aligned parallel to the longitudinal extension of the strand to be contacted (8) in direction.
8. Insulation displacement contact according to claim 6, characterized in that the cutting edges (63) with respect to extend to be contacted strand (8) radially in such a way that they cut from the side into the insulation (9), wherein the cut surfaces on each side of the strand (8), which are caused by the two cutting edges (63) and correspond to each other, lie in a common plane perpendicular to the longitudinal axis of the strand to be contacted (8) is aligned.
9. Insulation displacement contact according to claim 1, characterized in that the supporting surfaces (26) or cutting edges (63) at its end, the approaches in contacting before diverge slightly, the divergence angle of between 0 ° and 3 °.
10. Insulation displacement contact according to claim 1, characterized in that the nozzle surfaces (26) are made prismatic at its maneuver when con- front leading end.
11. Insulation displacement contact according to claim 1, characterized in that the nozzle surfaces (26); that region which is at the final contacting next to the strand (8) extend parallel to one another.
12. SchneidklemrakoncaKt according to claim 1, characterized in that the nozzle faces (26) of sharp or rounded edges (27) are limited.
13. Insulation displacement contact according to claim 1, characterized in that the mandrel (12) is a rotationally symmetrical pin, which is provided at one end with a tip (14).
14. Insulation displacement contact according to claim 1, characterized in that the mandrel (12) -a rectangular cross section, which is provided at one end with a pyramid.
15. Insulation displacement contact according to claim 1, characterized in that a plurality of pins (12,51,52) are provided which lie in the direction parallel to the longitudinal axis of the con- to lactating strand (8) next to each other, wherein a mandrel (12) in the contacted condition is in the range between the two nozzle surfaces (26).
16. Insulation displacement contact according to claim 15, characterized in that the pins (12,51,52) on a common stamped part (48) are formed.
17. Insulation displacement contact according to claim 1, characterized in that the mandrel (12) is sharp-edged.
18. Insulation displacement contact according to claim 1, characterized in that the free to penetrate into the cord (8) and isolation show (9) provided on the tips of the support surface (26) and the at least one mandrel (12) in the same direction.
19. Insulation displacement contact according to claim 1, characterized in that between the support surfaces (26) and to the mandrel (12) each thrust bearing (16,55,56) are provided to show the state in the contacted one another.
20. Insulation displacement contact according to claim 19, characterized in that the extending mutually approximately parallel thrust bearing (16,55,56).
21. Insulation displacement contact according to claim 19, characterized in that at least one of the counter surfaces (26) is designed as a cutting edge, which is intended to penetrate the insulation (9) of the strand (8).
22. Insulation displacement contact according to claim 1, characterized in that the mandrel (12) and the support surfaces (26) on the side walls (19,21) in the longitudinal direction of the wire (8) against each other a piece are far offset.
23. Insulation displacement contact according to claim 1, characterized in that the mandrel (12) is integral with the abutment (55).
24. Insulation displacement contact according to claim 1, characterized in that the mandrel (12) in the same direction as the free ends of the support surfaces (26).
25. Insulation displacement contact according to claim 1, characterized in that the mandrel (12) in the opposite direction as the free ends of the support surfaces (26).
26, insulation displacement contact according to claim 1, characterized in that the mandrel relative to a through support surfaces (26) defined plane is offset in the longitudinal direction of the strand (8), in such a way that it extends beside the support surfaces (26).
PCT/EP2006/011646 2006-01-13 2006-12-05 Insulation displacement contact for braided wires WO2007087859A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102006001966.0 2006-01-13
DE200610001966 DE102006001966A1 (en) 2006-01-13 2006-01-13 Insulation displacement connection for e.g. strand, has pin penetrating into strand bundle, which is flanked by support surfaces such that contacting force and/or contact pressure of individual strand wires is not applied against pin

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT06829293T AT545969T (en) 2006-01-13 2006-12-05 IDC for braids
EP20060829293 EP1972032B1 (en) 2006-01-13 2006-12-05 Insulation displacement contact for braided wires
NO20083475A NO20083475A (en) 2006-01-13 2008-08-12 Skjaerklemkontakt for wires

Publications (1)

Publication Number Publication Date
WO2007087859A1 true true WO2007087859A1 (en) 2007-08-09

Family

ID=37890824

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/011646 WO2007087859A1 (en) 2006-01-13 2006-12-05 Insulation displacement contact for braided wires

Country Status (3)

Country Link
EP (1) EP1972032B1 (en)
DE (1) DE102006001966A1 (en)
WO (1) WO2007087859A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013000435A1 (en) * 2012-08-16 2014-02-20 Phoenix Contact Gmbh & Co. Kg Line connecting equipment has gumption contact unit having two separate gumption contacts whose intervention units are electrically connected to each other and arranged transverse to spacer receiving unit, to contact conductor unit
DE102015114134A1 (en) * 2015-08-26 2017-03-02 Phoenix Contact Gmbh & Co. Kg Connection means for electrically contacting a line, in particular a ribbon cable

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525221A1 (en) * 1974-06-11 1976-01-02 Hashimotoseiki Co Ltd Electrical row connection arrangement
GB2079070A (en) * 1980-06-24 1982-01-13 Hayes Derek Electrical coupling device
US5788539A (en) * 1996-05-30 1998-08-04 The Whitaker Corporation Surface mountable electrical connector
DE20001604U1 (en) * 2000-01-29 2001-06-07 Wieland Electric Gmbh Insulation displacement contact for a plurality of wires having conductors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1485129A (en) * 1973-12-18 1977-09-08 Amp Inc Electrical contact
US4407557A (en) * 1980-07-16 1983-10-04 Derek Hayes Electrical coupling device
JPS5923479A (en) * 1982-07-29 1984-02-06 Tokyo Electric Co Ltd Pressure contact terminal
DE19903030C1 (en) * 1999-01-26 2001-05-03 Siemens Ag Device for insulation displacement contact with a flat cable
DE19903032A1 (en) * 1999-01-26 2001-02-22 Siemens Ag Flat cable core contacting device e.g. for electrical installation system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525221A1 (en) * 1974-06-11 1976-01-02 Hashimotoseiki Co Ltd Electrical row connection arrangement
GB2079070A (en) * 1980-06-24 1982-01-13 Hayes Derek Electrical coupling device
US5788539A (en) * 1996-05-30 1998-08-04 The Whitaker Corporation Surface mountable electrical connector
DE20001604U1 (en) * 2000-01-29 2001-06-07 Wieland Electric Gmbh Insulation displacement contact for a plurality of wires having conductors

Also Published As

Publication number Publication date Type
DE102006001966A1 (en) 2007-07-19 application
EP1972032A1 (en) 2008-09-24 application
EP1972032B1 (en) 2012-02-15 grant

Similar Documents

Publication Publication Date Title
US3636500A (en) Clip-type terminal
US6146217A (en) Terminal unit
US4036545A (en) Connector assembly
US5199903A (en) Ferruleless back shell
US5588884A (en) Stamped and formed contacts for a power connector
US4066319A (en) Method and apparatus for flat conductor cable termination
US7320616B1 (en) Insulation displacement connector assembly and system adapted for surface mounting on printed circuit board and method of using same
US3611263A (en) Clip connector terminal for insulated conductors
US3877773A (en) Double-ended conductor-in-slot connecting device
US3990762A (en) Electrical connector, electrical terminal and a method of making an electrical connection
US4295703A (en) Connector block
US4391484A (en) Box connector
US5645445A (en) Wire termination block
US4897040A (en) Cutting and clamp sleeve contact and method of connecting insulated electrical wire conductors
US6036534A (en) Low profile shunt connector
US6604956B2 (en) Self-stripping connecting device for two electric cables
US5836780A (en) Card edge connector
US5564941A (en) Insulation displacement connectors
DE10153170C1 (en) Electrical spring clamp for connecting electrical conductor with printed circuit board has bearing arm provided with integral solder pins for direct mounting on latter
DE10201495A1 (en) Electrical connection terminal for ribbon cable, has contact element fixed to lid part which is hinged to base, e.g. for insulation-displacement connection
US7118429B1 (en) Electrical contact with wire trap
JP2009283357A (en) Connector structure for inter-board connection structure
US4957453A (en) Electrical socket
US20110124219A1 (en) Connector with insulation piercing contact for terminating pairs of bonded conductor
DE3917270A1 (en) Terminal block with over-voltage protection

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006829293

Country of ref document: EP

NENP Non-entry into the national phase in:

Ref country code: DE

WWP Wipo information: published in national office

Ref document number: 2006829293

Country of ref document: EP