DE2815660A1 - ELECTRIC CONNECTOR - Google Patents

Description

. DRRERNAT-DIPu-PHVS

BUNKER EAMO CORPORATION _{MÜNrHEN M}

r \ r \ r \ / -ι i-> ° IVlUINC.Mt.IM 22

900 Commerce Drive

Oak Brook, 111. 60521

UNITED STATES . April 11, 1978

P 12 609 - 57 / wa

Electrical connector

The present invention relates generally to. electrical connectors, in particular an improved electrical connector that enables electrical connection of Flat wire cable ladders with external connection terminals. printed circuit boards and the like. Facilitated.

The more and more prevalent practice of modularizing and miniaturizing electronic circuits, especially in the area of highly developed electronics, such as in the computer industry, brings with it the problem to create effective and reliable means for connecting the individual circuit modules. The connection and linking the modules should preferably be carried out so that the replacement and removal, for example for maintenance purposes, is easily possible; at the same time should be between the individual modules during normal operation of the circuit Low resistance current paths are available.

A partial solution to this problem was the introduction of flat wire cables. These cables generally comprise a plurality of conductors arranged in parallel next to one another, the

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isolated from one another and spaced apart by the insulating material are. The insulating material consists of a flexible plastic, for example polyester, see above that the conductors can easily be guided between the modules.

When trying to make good contact between the parallel conductors and the circuit modules To create connectors have been developed which have a plurality of contact elements which are connected to the conductors in Are engaged, have; each contact is equipped with a corresponding connection terminal, the matches with correspondingly complementary external terminals on the modules. The so far to the above Purpose-developed connectors have not yet proven themselves to full satisfaction in practice. A The disadvantage of the known connectors is that they are not able to move between the conductors and the modules provide a consistent, low resistance electrical connection path. It was found that the undesirable high resistance is due to the connectors having contacts to the conductors pierce perpendicularly with respect to the axis of the conductor and make contact. Because the contacts are relatively narrow there is limited surface contact between the conductors and connector contacts of the conventional type manufactured.

Another disadvantage of known connectors is the need for external hardware for the conductors in order for them to create a clamping support. As a result, conventional connectors that required strain relief have been composed of an extremely large number of individual parts, making these connectors difficult to manufacture and were manageable and therefore had an unnecessarily high price.

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The invention therefore aims to provide a new and to provide improved connector which makes wide, good surface contact with a conductor in order to thereby to create a contact of low resistance between the conductor and the components connected to it.

The invention also aims to provide a connector that makes good contact with the wire of a causes insulated conductor and the parallel to and immediately adjacent with respect to a longitudinal section of the conductor punctures and strips the insulating material, and which has a contact part which is perpendicular to the conductor to the surface of which exerts a force in order to form a wide and intimate contact surface with the conductor.

The invention further aims to provide a connector which makes good electrical contact with each of a plurality of parallel conductors insulated from each other while the connector is simultaneously has internally arranged tensile relief means for the ladder.

Another object of the invention is to provide a connector for making wide, intimate surface contact provide with each of a plurality of parallel conductors insulated from one another, the connector easy to use and for external connection of conductors to terminals of printed circuits and Like. Serves.

The invention provides a connector for making good electrical contact with the wire an insulated conductor, and which is characterized by a contact element with a piercing and stripping part and a contact part extending essentially parallel to the conductor, the contact element in such a manner is arranged that it is immittelbar with the insulating material

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next to the core of the conductor comes into engagement, a sliding device, which is used to force the insulated conductor with the piercing part and the contact part to engage. When the pusher forces the insulated conductor into engagement with the contact, consequently the piercing part pierces the insulation and continuously strips it off, namely parallel and immediately adjacent with respect to a longitudinal section of the conductor; the contact part exerts a force on the stripped conductor part, which is directed perpendicularly with respect to the conductor axis, thereby a to create wide and good surface contact.

The invention further provides a connector for making good electrical contact with each one A plurality of conductors arranged in parallel, which are insulated from one another, which has a plurality of contacts, each of which has a pair of spaced, partially biased jaws that are substantially mutually oriented extending parallel with respect to the central axis of the conductors, each side having a piercing part and a contact part and is arranged to engage the insulation immediately adjacent the conductors; the connector has a housing body with devices for receiving the contacts, as well as a sliding device the insulated conductors under the action of force with the piercing parts and to bring the contact parts into engagement. When the sliding device the parallel insulated conductors pushes into the contacts, consequently the piercing parts pierce the insulation parallel to the conductors in the immediate vicinity Neighborhood of the conductor longitudinal sections and continuously strip off the insulation, and practice the contact parts exert a force on the ladder, in a vertical direction on the ladder, for a wide, intimate contact to manufacture.

In the following an embodiment is based on the drawing

80 9841/1065

- * · - 28Ί5660

JO

explained in more detail. Show it:

Fig. 1 is a perspective view of an inventive Connector,

FIG. 2 shows a side view of the connector, partially cut along the line 2-2 according to FIG. 1,

FIG. 3 is a view from below of that shown in FIG. 1 Connector in the view along the line 3-5 of FIG. 2,

Fig. 4- is an exploded perspective view with parts broken away to illustrate the individual parts of a first part of the in Fig. 1 shown connector,

Fig. 5 is a cross-sectional view taken substantially along that line Line 5-5 according to Fig. 4- to illustrate the individual parts of the assembled first connector part,

6 is an exploded perspective view of the individual parts of a second component of the connector according to Fig. 1,

7 shows a cross-sectional view essentially along the line 7-7 according to FIG. 6 to illustrate the individual parts of the assembled second connector part;

Figure 8 is a cross-sectional view of the fully assembled connector of Figure 1;

9 is a cross-sectional view taken substantially along line 9-9 of FIG. 3 illustrating an insulated conductor disposed in an assembled connector.

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Figure 9a is a partial cross-sectional view of the connector according to! ig. 1 to illustrate the location of the Connector with respect to the conductor in the initial stage of assembly, before a conductor with the connector contacts comes into action,

9b is a partial cross-sectional view of the connector according to FIG Fig. 1 at a later stage of assembly, after the conductors are partially connected to the connector contacts have intervened,

Fig. 10 is a plan view of a contact, the bei.dem connector shown in Fig. 1 can be used,

FIG. 11 is a partial cross-sectional view taken along line 11-11 of FIG. 10;

Fig. 12 is an enlarged scale cross-sectional view in essentially along the line 12-12 according to FIG. 9a,

Fig. 1 $ is a cross-sectional view taken substantially along the line 13-13 of Fig. 12, and

14 is a cross-sectional view taken substantially along that line Line 14-14 of Fig. 9.

In the description of the exemplary embodiment shown in the drawing, reference should first be made to FIG 4 and 6, the exploded views. The connector of the present invention shown therein comprises a Housing, which in turn consists of an inner housing body 10, an outer housing body 11, a top cover 12, consisting of several uniformly formed contact elements Contacts, and a clip device with a first clip part 14 and a second clip part 15 for Holding the connector together. A contact is both

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for example shown at 13.

Each contact 13 has a generally U-shaped configuration with a pair of opposing side members or jaws 16 and 17 extending from one thereto extending in the transverse direction of the back or bulge part. The jaws are designed so that they run towards each other. As will be explained in detail below, the jaws 16 and 17 are arranged in such a way that that they act as feather-like arms in close opposition; they are partially biased against each other and extend substantially parallel to the axis of the insulated conductor engaged therebetween.

The contact 13 further includes an extension with a straight part 20, which adjoins the bulge part 18. A cylindrical section 21, which will be discussed in more detail below, forms the lower end of contact 13

The inner housing body 10 (see Fig. 4-) is generally rectangular in shape and includes a plurality of cutouts Parts or slots 30 that are between a row vertically aligned walls or teeth 30a are formed trapezoidal cross-section. Those formed by teeth 30a Slots 30 are sized to meet the converging side walls 16 and 17 of the contacts take up. The walls of the teeth 30a, which form the slots, provide support for the jaws 16 and 17 and protect them from breaking apart or deforming during the process of insulating the conductor is pierced and stripped off and the contact 13 is brought into electrical contact with the conductor 82, as further will be explained in detail below. In addition, the slots 30 and the corresponding teeth 30a are preferred each arranged in a pair of parallel, laterally spaced rows so that the slots 30 relative to a row

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λΐ

of the slots 30 of the opposite row arranged offset are. Accordingly, each slot in a row lies a tooth 30a between adjacent slots of the opposite one Opposite row.

Immediately below each slot 30 and with it aligned is formed in the inner housing body 10, a first smaller recess 31, which is for receiving a Starting portion 20a of the straight extending part 20 of the contact 13 is used. Similarly, the inner one includes Housing body 10 also has a plurality of second recesses 32, each of which is immediately below a transverse Subdivision storage of an associated smaller recess 31 is arranged. Each of these second recesses 32 has arcuate inner walls for fittingly receiving an enlarged upper part 21a of the cylindrically extending Part 21.

With the construction explained above, each contact of one of the slots 30 and the associated recesses 31 and 32 added to put the contact in the right place to position and hold there; As an example is in Pig. the contact 13 shown so that it is from the associated Slot 30 and the smaller recess 31 and the arcuate formed recess 32 is received in such a way that as indicated by the arrow in the drawing, so that the contact 13 is positioned and held in the correct place will.

Between the laterally spaced rows of teeth 30a, a channel-shaped cavity is formed which extends over the entire length of the housing body 10 extends. The cavity 35 extends perpendicularly with respect to the direction of insertion the contacts 13 in the housing body 10. As further Will be explained in more detail below, the cavity also extends transversely to the parallel conductors 80 of the to be contacted Flat cable.

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The cover 12 of the connector includes a planar top Plate 12a and depending end portions 12b and 12c which are adapted to be connected to the first bracket part 14 fit together. A strip 40 of U-shaped cross section extending in the longitudinal direction of the part 12 protrudes downward from the underside of the top plate 12a. The bar 40 is dimensioned so that it from the elongated Cavity 35 cLes inner housing body 10 can be included. The bar 40 comprises a plurality of inwardly arcuate cam surfaces 42 which are formed between a corresponding row of equidistant ribs 43. They are used for alignment of the individual conductors in a flat cable consisting of several parallel conductors with corresponding contacts 13 in the inner case body 10. The cover 12 further includes inside the depending end portions 12b and 12c, corresponding shoulders 41 (see FIGS. 2 and 4), each of which cooperates in the same way with corresponding snap-in members of the first clip part 14 in order to achieve the To lock the cover 12 to the inner housing body 10.

The first bracket portion 14 includes a planar base plate 45 having a generally rectangular outline. At each end, a triangular projection is formed in one piece, in each of which an opening 46 for a fastening element 51 (FIGS. 1 to 3) is formed. An upstanding flange 47 defines the periphery of a central opening 48 of rectangular plan. The central opening 48 is dimensioned so that it closely receives the outer housing body 11 (FIG. 6). The first clamp part 14 further comprises a pair of upwardly projecting locking elements 49 which are formed in one piece with the clamp part at opposite ends of the elongated opening 48. The locking elements 49 formed in the same manner are biased inwards and run out in reverse hooks ^ O, which snap over the corresponding shoulder 41 of the cover 12 to

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AS

locking the cover 12 in place to facilitate. The interaction of the various components according to FIG. 4 in their assembled state the assembly of an insulated conductor can be seen in FIG in which a cross-sectional view of the inner housing body 10, the first bracket part 14-, the cover 12 and the contact 13 is shown.

It should be emphasized that each locking element 49 has a horizontal shoulder 52 which acts as a stop serve for the lower ends of the depending end portions 12b and 12c of the cover 12. This arrangement is limited the maximum path length by which the strip 4 can be inserted into the cavity 35 of the inner housing body 10 and thus limits the amount of movement of the conductor 80 caused by the insertion of the ledge 40. This relationship is explained in more detail below.

Pig. Figure 6 shows the outer housing body 11 and the second clip part 15 of the connector housing. These parts are designed so that they fit together with their corresponding counter-elements according to FIG. The outer case body 11 includes parallel side walls 56 and 57, the be held on opposite sides of an elongated block 65 so that they extend substantially over the top surface 59 of the block 65 extend. The side walls 56 and 57 are arranged at a distance from one another, in order to form an elongated channel through which the inner housing part 10 according to FIG. 4 in the intermediate space can be received between side walls 56 and 57 when the connector body is assembled. The side walls 56 and 57 of the outer case body 11 each include a plurality of uniformly formed cut-out portions or slits 55? the a number of towering ones Teeth or wall sections 55a in the corresponding side walls 56 and 57 form. The slots 55 are arranged so that

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that they are connected to the slots 30 of the inner housing body 10 align when assembling the individual parts of the connector. As a result, the slots 55 create an external one Possibility of access to each contact in order to create an external test option, for example using Pig. 1, which shows a fully assembled connector, can be seen. In the individual teeth 55a the outer walls 56 and 57 have cutouts 58 with concave, arcuate base surfaces, the cutouts 58 have an extension in their width, which corresponds essentially to that of the insulated conductors, whereby the alignment of the insulated conductors arranged in parallel Head is supported above the connector. The arcuate base surfaces of the cutouts 58 are of this type shaped to each receive a single insulated conductor. As a result, the connector of the present invention record individual insulated conductors in addition to the flat wire cables explained above.

The above-mentioned surface 59 of the central block 65 of the outer housing body 10 further includes a plurality of vertical bores or channels 60 (see FIG. 3) of general purpose cylindrical cross-section. The bores 60 are in two parallel rows for receiving the cylindrical extensions 21 of the contacts 13 arranged when the contacts 13 are in the outer housing body 11 in the required manner are aligned. The channels 60 extend almost over the entire depth of the outer housing body 11 with a constant Diameter, as can best be seen in FIG. 7. The channels 60 run in the area of the lower surface of the block 60 in a pair of coaxially aligned counterbores 61 and 62, the counterbore 61 being a Stop shoulder 63 near the lower surface of the Blocks 65 forms. ' The enlarged top part 21a of the cylindrical part 21 rests on the top surface 59, as one can easily recognized in Fig. 8. The channels 61 with a narrowed cross section run into the enlarged counterbores 62,

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which are formed in the lower surface of the block 65. The counter bores 61 and 62 enable a connection with the cylindrically extending parts 21 of the contacts 13 »when positioned within the channels 60 are. As a result, the cylindrical parts 21 of the contacts terminate close to the end of the channels 60, so that the contacts external terminals can accommodate that on a modularized printed circuit board of an associated connector available. Of course, the external connection terminals (not shown) must be complementary to the cylindrical ones Parts 21 be designed to mate with these.

The second bracket part 15 comprises, as can be seen in Fig. 6, a base plate 69 with an upper outer circumferential Flange 70 which is arranged around a rectangular central receiving opening 71. The receiving opening 71 is formed by four downwardly protruding side walls 72 and a circumferential lower inner flange 73. the Side walls 72 and the flange 73 are dimensioned so that the block 65 of the outer housing body 11 is firmly seated, such as B. from Fig. 7 shows a cross section of the components 11 and 15 according to FIG. 6 in their assembled Arrangement shows. Furthermore, an opening 74- is provided at each end of the flange to allow fastening means 51 (see Fig. 1 to 3).

The association of the components 11 and 15 according to FIG. 7 with the other components of the connector, namely the inner housing part 10, the contacts 13 »of the clamping device 14 and the cover 12, with reference to FIG. 8, in which a cross-sectional view of the complete assembled connector can be understood.

As can be seen from the drawing, the inner housing part 10 and the contacts 13 are within the outer housing body 11 added between the side walls 56 and 57,

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wherein the cylindrical extensions 21 of the contacts 13 sit on the surface 59 of blocks 65. The inner one Housing body 13 and the outer housing body 11, the together form a sub-assembly are then enclosed by the clip means 14 and 15. As As can be seen from the drawing, the block 65 of the outer housing body 11 sits in the through the four side walls 72 of the second clamp part 15 formed opening 71> the outer housing body 11 being seated on the upper surface of the flange 70 of the base plate 69. Of the first clamp part 14 comprises the outer housing body 11, so that its circumferential flange 4-5 with the corresponding formed flange 70 of the second bracket part 15 comes to rest and is aligned with this. The plate 12a of the top cover 12 is received by the outer housing body between the side walls 56 and 57, the Longitudinal strip 4-0 protrudes into the elongated cavity 35.

According to a basic feature of the present invention comprises - as can be seen from FIGS. 9-13 - every contact 13 is a pair of closely gradually converging and partially pretensioned jaw or claw elements 16 and 17? as already described. Each jaw 16 and 17 includes a piercing or cutting portion 90 with upper cutting and stripping means 90a and 90b along its upper and front surface, respectively, and a lower contact part 92, which with respect to the associated front incision means 90b below the same and offset to the rear, as well as where the jaws 16 and 17 meet, is formed. The contact portions 92 of the jaws 16 and 17 are preferred biased against each other so that good contact is made with the conductor, as will be explained below will. The jaws 16 and 17 are above the contact portion 92 generally in an upwardly deflecting shape "V" formed.

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The opposing cutting or piercing means 90a comprise inwardly facing stripping means 91> which are tapered to extend at a certain angle from the contact parts 92 and around narrow upper ones To form cutting edges 93. The edges 93 of each contact are preferably spaced from one another by an amount such that which is slightly larger than the diameter of the lead wire 82 but smaller than the diameter of the insulated conductor 80. Opposing piercing means 90b are partially aligned with contact portions 92 and included inwardly beveled stripping parts 94- »the in are arranged at an angle in the vicinity of the beveled stripping parts 91 and narrow leading cutting edges 95 form. The connection between each top cutting edge 93 and an associated leading cutting edge 95 forms a puncture point 96. In a preferred one Embodiment made especially in the Pig. 12 and 13 shown is, the cutting edges 93 and 95 are turned away from the contact portions 92 of the contact 93, instead of facing. This is a major difference compared to conventional contact arrangements for piercing a Insulation.

As shown in particular in FIGS. 9 to 9b, 12 and 13 When the parallel conductors 80 are initially aligned with the contacts 13, the insulation is 81 and inserted therein, arranged with respect to the piercing means 90a and 90b so that the insulation first engages the piercing and stripping means 90a substantially parallel to and in close proximity to the conductor 82 comes. After each ladder 80 is initially aligned, the downward movement will then move it downward the conductor A-O is pressed downward, in an arcuate curvature with respect to the piercing parts 90, such as is indicated by the arrows 97 and 98. Shoulders (Fig. 1) limit the total possible movement of the conductor 80. When the conductor 80 is moved, the insulation

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tion 81 first pierce through the piercing points 96 and then continuously through the cutting edges 93 and 95 cut and partially stripped in opposite directions from the initially pierced area or spread open. As can be clearly seen from FIG. 9b, the insulation 81 along the conductor 82 in a certain angle with respect to the central axis of the conductor cut when the insulated conductor 80 in a Angle is drawn over the cutting edges 93 and 95.

As the conductor 80 is gradually cut and partially stripped off by the cutting edges 93 and 95, it also becomes accordingly at an angle against the beveled edges 91 and 94- in the direction of the contact part 92 depressed. In this process, provide the beveled Edges 91 and 94- the further movement of the incised insulation 81 effective containment in contrast to the continuous curved downward movement of the lead wire 82. This causes the beveled edges 9i and 94- to remove the remainder of the insulation 81 from opposite one another Spread the sides of the lead wire 82 apart and stripping while stripping the lead wire 82 simultaneously with the separation of the biased one against the other Contact portions 92 begin as detailed below will. This action of the beveled edges 91 and 94-on conductor 80 lays a wide elongated surface area 82a of conductive wire 82 parallel thereto Axis on opposite sides of the conductor 80 free. It should be noted that under certain circumstances, so z. B. if the diameter of conductor 82 is relatively narrow with respect to the distance between jaws 16 and 17, the lower inner side edges of the beveled surfaces and 94- are also involved in stripping the insulation 81.

As mentioned above, the curved downward motion gets of the conductor 80 transversely to the beveled edges and 94- the separation of the prestressed contact parts 92 from.

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When the conductor 80 continues into the contact 13 through the Downward movement of the ledge 40 is pushed, the exposed surface areas 82a are on opposite sides Sides of the lead wire 82 gradually in the closed slot between the contact parts 92, which the parts of the jaws 16 that are prestressed against one another and 17 represent forced. This overcomes the downward force of the bar 40 against the conductor 80 the biasing force between the opposing contact parts 32 of each contact 13 and brings the lead wire 82 under the action of force to open the gap between the contact parts 92. In this way practice the converging, the contact parts 92 forming jaws 16 and 17 on the exposed surface areas 82a of the lead wire 82, a normal force, i.e. H. one force perpendicular to the surface to make wide and good surface contact with the lead wire 82 to build. This wide surface contact not only ensures that the conductor 80 is clear of the contact portions 92 of the jaws 16 and 17 is resiliently held, but continues to create a small electrical connection Resistance between lead wire 82 and contact 13-

The contact jaws 16 and 17 are large enough to completely pierce the insulation, as best is shown in FIG. In this way becomes the leader 80 held firmly in place while it is electrically connected to the contact 13. As an an example Representative sizes of a contact element 13 are to be given below, the contact element 13 is provided for a lead wire 82 with a diameter of 0.254 to 0.33 ^ m: The distance between adjacent wires 82 in a flat cable is approximately 0.94 mm, the distance between the piercing points 96 adjacent elements 13 is 0.813 min; the distance between the piercing points 96 in a single

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ML

Element 13 is 0.305 mm. The metal thickness of the jaws 16 and 17 is approximately 0.254-0.279 mm.

As can be seen from Fig. 10, the cylindrical extension 21 a longitudinal slot 100, so that the cylindrical parts can expand resiliently when they have a make appropriate external contact. As a result, an associated contact exerts a force against the Inner walls of the contact cylinder parts 21 to the secure external connections.

1 to 3 'show the connector in its assembled form with a flat cable consisting of a plurality of parallel insulated conductors 80 connected. When assembling the connector, the contacts 13 are inserted into the slots 30 and the recesses 16 and 32 of the inner housing body 10. The cylindrical extensions 21 of the contacts are then inserted into the channels 60 of the outer housing body 11-, and then the outer housing body 11 and the inner housing body 10 are joined together under pressure. Subsequently, the outer housing body 11 is guided into the clamp device 15, and the clamp device 14 is slipped over the outer housing body 11. Fastening means such as screws or rivets 51 ₅ can be inserted into the correspondingly arranged openings 46 and 74 formed in the end pieces of the clamping device 14 and 15 in order to connect the first and second clamping devices together.

If the connector is used to contact the total number of parallel insulated conductors 80, so the conductors, as shown in Fig. 9a, are arranged across the connector in such a way that the insulated conductors with respect to the cavity 35 in the inner housing body 10

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.-Yes-

run vertically. The cover 12 is then brought into engagement with the insulated conductors so that the arcuate cam surfaces 42 of the bar 40 with the Conductors 80 engage and align them with contacts 13. Then, as shown in Fig. 9b is, the cover 12 is pressed down in the direction of the arrow so that the bar 40 the insulated conductors 80 forces into the cavity 35. While the bar 40 the insulated conductor 80 presses against the contacts 13 and brings them into engagement with the same, the insulation 81 on opposite sides of each lead wire through piercing means 90a and 90b of contacts 13 pierced and continuous substantially parallel to the lead wires 82 and in close proximity to certain ones Longitudinal portions thereof are stripped to expose a broad surface of the lead wires 82, such as has already been explained above. Since each contact 13 two Has halves, each of which has piercing means 90 with individually formed piercing parts 90a and 90b, a wide area on opposite sides of each lead wire 82 is exposed.

After the conductors are engaged with the piercing parts 90a and 90b, they come with the contact parts 92 in engagement which are directed against the conductors in a direction perpendicular to the conductor surface Apply force to make wide and good flat surface contact with the exposed areas of the connectors to accomplish. Fig. 9 shows the conductors in substantially complete engagement with the contacts 13. As each Conductor 82 is contacted on opposite sides, as can be seen in Fig. 14, the conductor receives on two separate places wide and good surface contact, in this way one contact is low for each conductor Resistance ensured.

If the cover 12, as shown in Figs

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is correctly assembled, the locking elements slide 49 of the first bracket part 14 over the shoulders 41 of the connector cover 12 to the cover 12 to snap onto the connector and thereby indicate that the cover is properly seated. Since the cover is snapped into position, it is used the bar 40 to create a strain relief for the ladder without additional structural measures are required for this task. Furthermore, the cover 12 fulfills the purpose of enclosing the contacts in a protective manner.

FIG. 3 shows the underside of that shown in FIG Connector, in particular the channels 60, which extend through the block part 65 of the outer housing body 11. As can also be seen from FIG. 3, the cylindrical contact projections 21 serve to accommodate complementary contact extensions external connections from a printed circuit board or the like. To the printed circuit board or the connector with the contacts and thus with the conductors.

Of course, the connector according to the invention can already be assembled beforehand, with the exception of the cover 12 and the permanent attachment of the first and second clamp parts 14 or 15 by means of rivets 51 or the like Facilities. As can be clearly seen, the connector of the present invention contains a minimal number of individual ones Components to make the assembly of the connector more convenient compared to conventional connectors. In addition, as already indicated above, no external facilities are required to the Relief of strain on conductors, instead, if the individual components are assembled correctly, strain relief is required at the same time

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guaranteed. It follows that the inventive The connector is much easier to assemble and can be handled as a conventional connector. Because the contacts make the conductor insulation essentially parallel cut through to the conductor axes and the contact parts exert a normal force on the conductor, d. H. one in vertical Applying force directed towards the ladders after piercing and stripping will eventually created for the contacts a broad and good surface contact with the conductors in question, whereby between An electrical connection path of low resistance is created for the contacts and the conductors.

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Claims (1)

S = ¹ ATEiNTANWZiLTE A. GRUNECKER H. KINKELDEY DR-INCx 2815660 ^W STOCKMAlR K. SCHUMANN DR BEa NOT.- OPL-PHVS P. H. JAKOB DlPL-INa. G. BEZOLD OR PERM «. DIPL-CHEM. 8 MUNICH MAXIMILIAN3TRASSU April 11, 1978 P 12 609 - 57 / wa Claims / 1, connector for making good electrical contact with an insulated conductor having an elongated axis, marked by Contacts devices which have at least one contact element (13) with means (90, 96, 93, 95, 91, 99) for piercing and Stripping off a longitudinal strip of insulation (81) and a conductor contact part (92), which is located in the extends substantially parallel to the axis of the conductor (80), the contact element (13) being arranged in this way is that it comes into engagement with the insulation (81) immediately adjacent to the conductor, an arrangement (40) for advancing Engaging the insulated conductor (80) with the piercing and stripping means (96, 91, 94-) and the contact part (92) of the contact element (13) to first piercing a strip of insulation (81) along a longitudinal portion of the conductor (80) and continuously to strip off and then to position the longitudinal section of the conductor adjacent to the contact part (92), which exerts a force on the longitudinal section of the conductor in the direction perpendicular to this, in order to have a wide good with it To form surface contact. 809841/1065 (oas) aaasBQ telex 0B-203B0 telegrams monapat telekopierer QRiOfNAL INSPECTED 2. Connector according to claim 1, characterized in that the contact element (13) is a pair having spaced jaws (16, 17), each. . An insulation piercing and stripping part (90a, 90b) as part of the means for piercing and stripping, and that the jaws continue to have the contact part (92) include. 3. Connector according to claim 2, characterized in that the contact element (13) is a base part (18), from which the jaws (16, 17) extend in substantially the same direction, while they converge on each other. 4 ·. Connector according to claim 2, characterized in that the insulation piercing and Stripping part a first and second stripping part (90a, 90b) has that the first part (90a) has a first beveled stripping surface (91) which extends from the contact part (92) extends upwards at an angle to form an upper cutting edge (93) at the end thereof, that the second piercing part (90b) has a second beveled stripping surface (94-) which is in partial alignment with the contact portion (92) extending forward and with respect to the adjacent sloping wiping surface (91) forms an angle that the second beveled stripping surface (94-) has a front cutting edge (95) forms its end, and that the upper and front cutting edges (93j 95) are so arranged at an angle to one another are that they form a piercing point (96) at their common connection point. 5. Connector according to claim 2, characterized in that a housing is provided with a first housing body (10) for positioning and holding the contact elements (13) in predetermined positions. 809841/106 5 6. Connector according to. Claim 5 »characterized that the first housing body (10) has several slots (30) for positioning and holding the Contacts (13) has that the slots (30) are formed in a pair of laterally spaced rows, between which a cavity (35) is provided. 7. Connector according to claim 6, characterized in that a second housing body (11) is provided which can be fitted into the first housing body (10) and has spaced rows of slots, these slots being aligned with thin slots of the first housing body (10) when the first and second housing bodies (10, 11) are assembled 8. Connector according to claim 7 »characterized in that the first housing body (10) has a forms inner housing body, and that the second housing body (11) forms an outer housing body, the has a recess for receiving the inner housing body. 9. Connector according to claim 6, characterized in that the contacts (13) from the slots (30) are received, the jaws (16, 17) extending in the direction of the cavity (35), and that the Walls (30a) of the slots for the jaws (16, 17) form a bearing to prevent deformation of the jaws, when the conductor (80) is brought into engagement with the respective contact element (13). 10. Connector according to claim 6, characterized in that the connector is designed in such a way is that it has a plurality of insulated conductors (80) arranged in parallel across the upper part of the housing (10, 11) aligns, the insulated conductors (80) extending perpendicularly with respect to the cavity (35), while corresponding 809841/1065 isolated parallel conductors are aligned between the sides of respective contact elements (13), and that the device to "engage the isolated Conductor with the piercing and stripping means is designed such that it has the parallel insulated conductors (80) presses into the cavity (35) so that they come into engagement with the contact elements (13). 11. A connector according to claim 10, characterized in that the means for engaging of the insulated conductor comprises a strip which is dimensioned so that it can be fitted into the cavity (35) is. 12. Connector according to claim 11, characterized in that a cover part (12) is provided, to protect the contact elements (13), and that the Bar (40) is carried by the cover part (12). 13 · Connector according to claim 12, characterized in that a locking device (41, 49, 50) is provided to the cover part (12) with the housing to lock when the cover part (12) has penetrated sufficiently far into the cavity (35) to thereby the conductors (80) reliably engage with the contact elements (13), the cover part (12) locked to the housing, the contact elements (13) protects and at the same time forms a strain relief for the ladder (80). 14. Connector according to claim 6, characterized in that each contact element (13) has one Port set (21) that each connector continues a second housing body (11) with several channels (60), the number of which corresponds to the number of contact elements (I3) and which serve to accommodate the extensions (21) of the contact elements that the channels (60) the second Ge 809841/1065 enforce housing body (11), and that the contact element extensions (21) in the vicinity of the ends of the channels (60) end in order to provide external access to the elements of the contact (13) to enable. 15. Connector according to claim 14, characterized in that the contact element extensions in the essentially cylindrical extensions (21) have that the channels are essentially cylindrical and are dimensioned so that they receive the cylindrical contact element extensions (21), and that the cylindrical contact element extensions (21) terminals form that can be securely and firmly joined together with complementary external connections. 16. Electrical contact element for receiving an elongated insulated metallic conductor, when this conductor from a first position above the contact element is moved in the direction of the contact element, characterized by a pair laterally spaced jaw members extending along the longitudinal axis of the conductor (80) and directed inwardly Have surfaces to form an upwardly open slot which is used to receive the conductor, as well as surfaces (93 »95» 91 »94 ·) for piercing and stripping the insulation (81) from a longitudinal section of the conductor (80) when the conductor is moved downwards into the contact element, the claw elements (16, 17) have resilient contact parts (92) in a closed position opposite one another, which are supported by the conductor (82) are spreadable, and an arrangement (18) for holding the claw elements (16, 17). 809841/1065