Patent Description:
Disclosed herein is a crimp connection between a crimp contact and an, in particular multicore conductor, extending in a longitudinal direction of the crimp contact, wherein at least one crimp flank is crimped around the conductor, wherein at least one wing projecting transverse to the longitudinal direction of the crimp flank is provided at the crimp flank and wherein the conductor extends to at least one crimped wing.

Crimp contacts are sufficiently known from the prior art. These mostly have two crimp flanks which are arranged on either side of a crimp back, with, when the crimp contact is contacted with a conductor end, the conductor end being positioned between the crimp flanks and over the crimp back and the crimp flanks being curved around the end of the conductor, for example with crimping pliers or a crimping device. In this crimping process, the mostly multicore conductors are connected both mechanically and electrically to the crimp contact.

Applications of crimped contacts in the mobile field, i.e. in automobile construction for example, require weight savings which are made possible by using aluminium wires, for example.

When aluminium is used as wire material, special attention must be paid to two characteristics of the aluminium. At its surface, right from contact with the ambient air, aluminium forms aluminium oxide which represents a good isolator, so that electrically contacting an aluminium wire is made difficult. It is therefore necessary to pierce through the aluminium oxide layer when electrically contacting an aluminium wire for the first time and advantageous to protect the aluminium wire from environmental influences in the case of further use.

Since the crimp contact generally consists of copper and since the metals involved, aluminium and copper, have different standard potentials, it is necessary to impede the ingress of any electrically conductive liquids. In the event of the slightest impurities, distilled water, e.g. condensed water, already has increased electrical conductivity compared to the pure state. By impeding ingress, it can be ensured that the aluminium does not electrochemically decompose due to the difference in electrical potential.

In addition, through such a protection of the aluminium wires, hermetic sealing from ambient air may likewise be possible, which impedes a (renewed) oxidation of the aluminium.

In the prior art, this protection is solved for example through self-protecting crimp connections. These have an isolation crimp, a conductor crimp and wings or front protection lugs, wherein, in the crimping process, the wings or front protection lugs are crimped such that they block the access to the crimp sleeve. In addition, a self-protecting crimp has sealing agent repositories through which, during crimping, a sealing agent is made available which fills gaps still remaining in the crimped front protection crimp, in the crimped conductor crimp (i.e. between the conductor crimp and the aluminium conductor) and in the isolation crimp (i.e. between the isolation of the aluminium conductor and the isolation crimp) and thus prevents ingress of electrically conductive and/or corrosive liquids, and ambient air.

A possibility for contacting multicore wires is shown in <CIT>, where crimp flanks of a crimp barrel are provided with couplings for contacting inner strands.

Document <CIT> discloses a further crimping terminal of the art, wherein this solution comprises a contact strip projecting backwards from the electric contact part.

Further information on crimp contacts and crimp connections are given in document '<NPL>; rev.

<CIT> discloses an electrical terminal is provided for terminating a wire. The electrical terminal includes an electrical contact and a crimp barrel extending from the electrical contact. The crimp barrel is configured to be crimped around an end of the wire. The crimp barrel includes a base and opposing side walls that extend from the base. The base and the side walls define an opening of the crimp barrel that is configured to receive the end of the wire therein. The side walls extend outwardly from the base to ends. The side walls include base segments that extend from the base and end segments that extend from the base segments and include the ends. A sealing wing extends from the end of at least one of the side walls. The side walls are configured to be folded over when crimped over the end of the wire such that a gap is defined between the end segment and the base segment of at least one of the side walls. The sealing wing is configured to extend within the gap between the end segment and the base segment of the corresponding side wall when the side walls are crimped over the end of the wire.

<CIT> relates to an electrical terminal comprising a terminal portion; a crimp portion integral with the terminal portion; and a spring element integral with the terminal portion and/or the crimp portion and having a spring arm within the crimp portion.

In the crimping process, the wings or the wing are/is curved in the direction of the receptacle for the conductor so that the wings which are curved at the same time and which are opposite one another touch over an axis of symmetry of the crimp contact which extends in a longitudinal direction and come closer to the crimp back, unrolling on one another in a spiral movement.

Since the preferably multicore aluminium conductors used form an aluminium oxide layer at all outer surfaces of the single strands prior to crimping, it is necessary to pierce through this aluminium oxide layer during crimping. In the case of the outer single strands situated in the conductor, this is accomplished during crimping through mechanical contact with the crimp contact e.g. through so-called serrations (indentations) formed on it.

Single strands situated on the inside of the conductor are, however, sometimes not sufficiently mechanically stressed during crimping in order to pierce through the aluminium oxide layer so that these single strands situated on the inside are no longer available for the conduction of electrical current due to the aluminium oxide layer formed around them and the resistance of the aluminium conductor used is increased.

The aim of the present invention is thus, on the one hand to shield the exposed end of an aluminium conductor against electrically conductive and/or corrosive liquids and/or ambient air and on the other hand to directly contact the single strands in the interior of the multicore aluminium conductor used.

The crimp contact according to the invention of the type mentioned above solves this problem in that the wing has a plurality of displacing barbs distributed perpendicular to the longitudinal direction on the wing.

In the crimp connection disclosed herein, the wing forms a conductor-displacing member which overlaps the receptacle for the conductor in the longitudinal direction.

"Pushing-in of the conductor-displacing member" should be understood to mean that the conductor-displacing member is pushed between the single strands of the conductor used and displaces them.

These measures make it possible to directly electrically contact those single strands of the aluminium conductor used which are situated on the inside, wherein, when generating the crimp connection, the conductor-displacing members enter into contact mechanically with the inner single strands of the aluminium conductor used such that the layer of aluminium oxide formed around the single strands is pierced through.

The solution according to the invention can be improved by way of the following respectively individually advantageous developments which are independent of one another. These configurations and the associated advantages shall be explored in greater detail hereafter.

In a first advantageous configuration of the crimp contact according to the invention, the conductor-displacing member is formed as a base of the wing, which base widens in a longitudinal direction towards the receptacle. This has the advantage that the widening base is curved between the single strands of the aluminium conductor during crimping, wherein the wing closes the front end of the crimp contact and only the widening base can extend into the receptacle for the conductor and contacts, both electrically and mechanically, the single strands situated in the interior of the aluminium conductor.

The width of the base can be up to a width of the wing, the width of the wing being measured in the longitudinal direction of the crimp contact. The widening base of the wing can, starting at the crimp flank, taper towards the wing and end at the wing end at a distance from the crimp flank. It is also possible that the widening base, between the end facing the crimp flank and the end facing away from the crimp flank, adjoins the wing.

This configuration is characterised in that the spread of the wing and of the conductor-displacing member in the longitudinal direction of the crimp contact, measured starting from the crimp flank up to the end of the wing which is distal relative to the crimp flank continuously decreases.

In a second advantageous configuration of the crimp contact according to the invention, at the wing at a distance from the crimp flank there is provided at least one conductor-displacing member which is formed as a displacing barb and which protrudes from the wing in a longitudinal direction, directed away from the front end. Since the wing is rolled together in a spiral shape between the front end and the receptacle end during crimping, virtually desired any single wire, situated on the inside, of the aluminium conductor can be contacted mechanically and electrically with the displacing barb by means of such a displacing barb, by this displacing barb being formed at the wing at any distance from the crimp flank.

The displacing barb can be formed as a bar, i.e. that the spread of the displacing barb perpendicular to the longitudinal direction can be substantially constant over the longitudinal extension of the displacing barb. It is also possible that the displacing barb can be formed as a displacing barb which tapers substantially in the longitudinal direction away from the front end, i.e. it can take the form of a triangle.

A substantially triangular displacing barb can be rounded both at its free-standing tip and at its links to the wing. This has the advantage that, during crimping, the forces acting on the displacing barb can be transmitted uniformly onto the wing while the displacing barb is moved mechanically between the single strands.

In a further advantageous configuration of the crimp contact according to the invention, the receptacle end is formed as an end marking on a crimp back arranged between the crimp flanks, and/or on the crimp flanks. Such an end marking makes it easier for the user to insert the aluminium conductor into the crimp contact and to position the aluminium conductor correctly in it. It is thus ensured that the crimp connection produced with this crimp contact meets the requirements for a crimp connection and both the electrical contacting of the aluminium conductor to the crimp contact, and the shielding of the aluminium conductor from electrically conductive and/or corrosive liquids and ambient air is guaranteed.

The end marking can be formed as a surface structure which is oriented substantially perpendicular to the longitudinal direction. This surface structure can be produced by embossing or can be a mechanically altered surface which optically stands out from the unaltered crimp contact.

It is also conceivable that the end marking is formed as a region, for example an extruded region, which obtrudes from the crimp contact perpendicularly to the longitudinal direction of the crimp contact so that this region represents a mechanical stop point for that end of the aluminium conductor which is to be electrically contacted. In such a configuration of the receptacle end, the user can thus displace the aluminium conductor to this receptacle end in a longitudinal direction along the crimp contact until the aluminium conductor strikes the receptacle end and thus signals to the user via a haptic feedback that the aluminium conductor is correctly inserted into the crimp contact.

In a further configuration of the crimp contact according to the invention, it is advantageous, if the at least one conductor-displacing member has at least one element element from the group of elements comprising serrations, indentations, holes, depressions, projections and roughening of a surface, wherein the element is formed on a conductor-receiving side of the crimp contact, for piercing through an oxide layer. Such an additionally formed element for piercing through the oxide layer has the advantage that not only the mechanical contact with the smooth surfaces of the conductor-displacing members is used to pierce through the oxide layer and thus it is also possible for mechanically stable layers of aluminium oxide to be safely pierced through.

In general, each formed element which increases the surface roughness of the conductor-displacing member can advantageously ensure that the oxide layer is pierced through.

The crimp contact can have, in different regions which come into contact with the aluminium conductor, the described elements for piercing through the oxide layer.

In a further advantageous configuration of the crimp contact according to the invention, the at least one displacing barb is arranged at that end of the wing which is at a distance from the crimp flank. This has the advantage that, during crimping, such a formed displacing barb contacts mechanically and electrically those single strands situated in the interior of the aluminium conductor.

Thus single strands which cannot be reached by the crimp flank during crimping can be electrically contacted. Furthermore, during crimping, such a positioned displacing barb can be moved through mechanically between the single strands of the aluminium conductor, with the layer of aluminium oxide of surfaces of different single strands being able to be pierced through so that the electrical contacting of the single strands to one another can be improved. The displacing barb can be formed directly at the end of the wing or offset from the end of the wing in the direction of the crimp flank.

In a further advantageous configuration of the crimp contact according to the invention, the at least one displacing barb is arranged at a base of the wing which faces the crimp flank. Such an arrangement of the displacing barb has the advantage that, during crimping, the displacing barb only has to be moved through a limited way between the single strands of the aluminium conductor and thus is subjected to less stress. This can be advantageous, for example in the case of crimp contacts stamped out of thin-walled materials.

Due to the spiral-shaped turning-in of the wing during crimping, mechanical and electrical contacting of those single strands of the aluminium conductor which are situated on the inside can also be guaranteed with a displacing barb arranged at that end of the wing which faces the crimp flank.

In a further configuration of the crimp contact according to the invention, it is advantageous, if the wing has a plurality of displacing barbs distributed perpendicular to the longitudinal direction on the wing. A plurality of displacing barbs offers the advantage that the individual displacing barbs can touch various single strands and all of the displacing barbs can thus mechanically and electrically contact more single strands than is possible with a single displacing barb.

In addition, through the plurality of displacing barbs present, a larger effective surface of the aluminium oxide layer can be mechanically contacted and pierced through, which can lead to improved electrical contacting of the single strands to one another.

The displacing barbs formed on the wing can be formed identically or with various shapes. Thus, for example, a displacing barb provided at that end of the wing which is distal from the crimp flank can be formed narrower, in a direction perpendicular to the longitudinal direction of the crimp contact, than additional displacing barbs formed closer to the crimp flank on the wing. It is also possible that the displacing barbs are provided on the wing equidistantly or with different distance relative to one another.

If two wings are formed on the crimp contact, a different number of displacing barbs can be formed on the two wings.

In a further advantageous configuration of the crimp contact according to the invention, two wings which are symmetrical to one another are provided on the crimp contact, wherein the displacing barbs formed on the wings are arranged antisymmetrically relative to one another.

Such an arrangement of the displacing barbs has the advantage above all during the crimping process that the displacing barbs are moved through sequentially, and not side-by-side, between the single strands of the aluminium conductor. The movement of the displacing barbs through the single strands is thus comparable with the teeth of a zip.

If that end of the wings which is at a distance from the crimp flank reaches the crimp back, in each case only one displacing barb is guided laterally by the single strands in the direction of the crimp flank on which the wing bearing the displacing barb is arranged.

In a further advantageous configuration of the crimp contact according to the invention, at least one sealing agent repository is provided which makes sealing agent available during crimping of the crimp contact. If the sealing agent is already made available by the crimp contact, then the risk of the crimp contact being crimped without sealing agent is reduced.

The sealing agent can be provided for example in the receptacle for the conductor and/or between the front end and the receptacle end of the crimp contact and/or in the region of a conductor crimp. Advantageously, the sealing agent may be a grease, is thus not water-soluble and offers a protection or sealing from ambient air.

The sealing agent repositories can be provided symmetrical to the axis of symmetry of the crimp back, so that, when crimping two opposing crimp flanks, sufficient sealing agent to seal any gaps is situated in or at each crimp flank.

Advantageously, the crimp connection mentioned above comprises a crimp contact with two opposing, symmetrically arranged wings. Nevertheless, it is possible for only one crimp flank and one wing to be provided. In this case, crimping pliers or a crimping tool are/is specially designed for crimping a crimp connection formed in such a manner.

In a first advantageous configuration of the crimp contact according to the invention, an isolation crimp which receives a conductor isolation of the conductor is provided at that end of the crimp contact distal from the crimped wing. Such an isolation crimp has the advantage that, after crimping, the crimp connection has an anti-pull protection and in addition the access to a crimp interior from the end of the crimp contact opposite the front end is closed by the isolation crimp.

The isolation crimp can be formed such that it deforms the isolation of the conductor used and connects in a clamping connection with the crimp contact, but does not penetrate the isolation of the conductor.

In a second advantageous configuration of the crimp contact according to the invention, a sealing agent is provided which is deformed during crimping and is pressed at least partially out of the crimped crimp contact and fills remaining gaps from the crimped wing at the front end and/or from the crimped isolation crimp and/or from the crimped crimp flank.

The sealing agent can thus be provided in the isolation crimp, at the crimp flanks and at the wing so that neither electrically conductive or corrosive liquids nor ambient air can penetrate into a crimp interior formed by the crimp flank.

In addition, there can be provided in the isolation crimp retaining loops or retaining lugs which deform the isolation of the conductor, for example be pressed into this, and thus act as strain relief which can improve the tensile strength of the crimp connection.

Hereinafter, the invention is explained with reference to the drawings by way of example using embodiments. The different features can be combined independently of one another in this case, as has already been demonstrated in the above individual advantageous configurations. Individual features can also be omitted in the configurations, insofar as the effect linked to this feature is not important.

<FIG> shows a plug connector <NUM> with a crimp contact <NUM> from the prior art. The crimp contact <NUM> is shown in the preformed state <NUM>.

The plug connector <NUM> comprises a contact member <NUM> which extends in a longitudinal direction <NUM> just like a crimp sleeve <NUM>. The crimp sleeve <NUM> is linked to a bearing strip <NUM> via a linking bar <NUM>. Both the linking bar <NUM>, the bearing strip <NUM>, and the contact member <NUM> are shown purely by way of example.

The crimp contact <NUM> comprises two wings <NUM> and two crimp flanks <NUM>, the crimp flanks <NUM> comprising an isolation crimp <NUM>, a conductor crimp <NUM> and a front protection crimp <NUM>. The isolation crimp <NUM>, conductor crimp <NUM> and front protection crimp <NUM> each run from a crimp flank <NUM> via a crimp back <NUM> to the crimp flank <NUM> situated opposite, so that a continuous sleeve, the crimp sleeve <NUM>, is formed. The crimp sleeve <NUM> encloses a receptacle <NUM> in which a conductor <NUM> (not shown) can be received.

<FIG> further shows serrations <NUM> (also called indentations) in the conductor crimp <NUM> and a sealing agent repository <NUM>.

The following figures each relate to the crimp contact <NUM> and details and sections thereof.

<FIG> shows a crimp contact of the prior art in a side view. The front protection crimp <NUM> merges formlessly into the conductor crimp <NUM>, wherein, in the depiction shown in <FIG>, the wing <NUM> separates both crimp regions <NUM>, <NUM> from one another. On the underside <NUM> of the crimp contact <NUM>, a step <NUM> can be seen which distinguishes a transition region <NUM> between the conductor crimp <NUM> and the isolation crimp <NUM>. The receptacle <NUM> for the conductor <NUM> extends over the conductor crimp <NUM> and the isolation crimp <NUM>. The conductor isolation (not shown) of a conductor <NUM> (not shown) can be received in the isolation crimp <NUM>.

In addition, two section lines A-A and B-B which are explored in greater detail in <FIG> are shown.

<FIG> shows the section along section line A-A of a crimp connection <NUM> of the crimp contact <NUM> shown in <FIG>, which is situated in the crimped state. It is possible to see the crimp flanks <NUM> which extend from the crimp back <NUM> substantially perpendicular in the z-direction, which are curved towards one another and which touch in a striking region <NUM>.

The crimp back <NUM> and the crimp flanks <NUM> enclose a crimp interior <NUM> in which is situated the conductor <NUM> which, in the case of the conductor <NUM> shown purely by way of example in <FIG>, comprises twenty-three single strands <NUM>. The crimp interior <NUM> emerges from the receptacle <NUM> during crimping. For the sake of clarity, not all single strands <NUM> are provided with reference numbers in <FIG>.

A disadvantage of the crimp connections <NUM> of the prior art becomes clear from <FIG>. The inner single strands 45a are only in mechanical and electrical contact with other single strands <NUM>, but not with the crimp flanks <NUM> or the crimp back <NUM>.

If such a crimp contact <NUM> is used to electrically contact an aluminium conductor <NUM>, then on the aluminium's surfaces exposed to the outer air there is situated an electrically isolating layer of aluminium oxide, with the layer of aluminium oxide having to be pierced through in order to electrically contact the single strand <NUM> located under the layer of aluminium oxide.

However, in certain circumstances, the inner single strands 45a are not subjected to any sufficiently great mechanical contacting, meaning that the layer of aluminium oxide cannot be pierced through. The electrical conduction via the inner single strands 45a can thus be prevented and lower the conductivity of the aluminium conductor <NUM>.

<FIG> shows the crimp connection <NUM> sectioned along line B-B. This section also shows the crimp contact <NUM> in the crimped state. The crimp back <NUM>, the crimp flanks <NUM> and the wings <NUM> can be seen.

The shown section along line B-B is purely by way of example and is substantially obtained in this form when the crimp connection <NUM> with the crimp contact <NUM> shown in <FIG> of the prior art is sectioned along this line, and also when all inventive crimp contacts <NUM> with two crimp flanks <NUM> and two wings <NUM> are sectioned through the front protection crimp <NUM> and the wings <NUM> along this line. The section line B-B is not displayed anew in the further views of the configurations according to the invention.

Since no conductor <NUM> is situated between the receptacle end <NUM> and the front end <NUM> (see <FIG>), the crimp flanks <NUM> and the wings <NUM> are rolled together such that they seal the crimp interior <NUM> (not shown).

Since gaps <NUM> may remain when the front protection crimp <NUM> and the wings <NUM> are crimped, a sealing agent <NUM> is used which is made available by sealing agent repositories <NUM> (see <FIG>) and fills the gaps <NUM> so that no corrosive liquids and/or ambient air can get into the crimp interior <NUM> (not shown).

<FIG> shows a first configuration of the crimp contact <NUM> in side view. The crimp contact <NUM> is formed in the pre-formed state <NUM> and has a conductor-displacing member <NUM> which is formed as displacing barb <NUM>.

The displacing barb <NUM> points in a longitudinal direction <NUM> away from wing <NUM> in the direction of the conductor crimp <NUM>. The displacing barb shown here is approximately parallel to the crimp back <NUM>, is formed substantially rectangularly and has a length lV, which is situated in the magnitude of the width of the wing bF. The wing <NUM> shown in <FIG> has a slight tapering, so that the base of the wing <NUM> in the shown configuration is wider than that of the end of the wing <NUM>.

<FIG> shows a section of the crimp connection <NUM> along line C-C after crimping the crimp contact to a conductor, i.e. the inventive crimp contact <NUM> from <FIG> in the crimped state. This sectional image too is purely by way of example and its exact form, for example how far the crimp flanks <NUM> extend into the crimp interior <NUM>, is different for each combination of crimp contact <NUM> and conductor <NUM>, but has similar features.

In the section, the crimp back <NUM>, the crimp flanks <NUM> and the two displacing barbs <NUM> provided at the wings <NUM> (not shown) can be seen. Due to the arrangement of the displacing barbs <NUM> at the end <NUM> of the wings <NUM> (see <FIG>), both displacing barbs <NUM>, seen in the z-direction, are arranged substantially in the centre of the crimp interior <NUM> after crimping.

Alongside the single strands <NUM> which touch the crimp back <NUM> or the crimp flanks <NUM>, the inner single strands 45a also create electrical contact with the crimp contact <NUM> via the displacing barbs <NUM>. In addition, not all single strands <NUM> or all inner single strands 45a are provided with reference numbers in <FIG>. The number of single strands <NUM> shown is purely by way of example.

<FIG> shows a second configuration of the crimp contact <NUM> according to the invention in the preformed state <NUM>. This configuration has three displacing barbs <NUM> which are distributed in the z-direction along the wings <NUM>, run substantially parallel to the crimp back <NUM> and protrude from the wings <NUM> in a longitudinal direction <NUM>.

The displacing barbs <NUM> shown here are arranged equidistant to one another at the wings <NUM>. The distance of the displacing barbs <NUM> to one another and the distance relative to the crimp flanks <NUM> can vary depending on the configuration of the crimp contact <NUM>.

<FIG> shows the crimp connection <NUM> after crimping the crimp contact <NUM> of <FIG> situated in the crimped state in section along line C-C. It can clearly be seen that the displacing barbs <NUM>, at various positions in the crimp interior <NUM>, create mechanical and electrical contact with the inner single strands 45a.

It is particularly advantageous if all single strands <NUM> of the conductor <NUM> are mechanically and electrically contacted by the crimp back <NUM>, the crimp flanks <NUM> or the displacing barbs <NUM>. In a direct comparison of <FIG> and <FIG>, it can be seen that an individual displacing barb <NUM> arranged at the end <NUM> of the wings <NUM> can be advantageous if the single strands <NUM> substantially have a diameter dE which does not exceed approx. <NUM>% of the height <NUM> of the crimp interior <NUM>.

In the case of single strands <NUM> with a diameter dE smaller than approx. <NUM>% of the height <NUM> of the crimp interior <NUM>, it is advantageous to form several displacing barbs <NUM> distributed entering into the crimp interior <NUM> as conductor-displacing members <NUM>.

In <FIG>, in each case a crimp contact <NUM> is shown in different configurations in the stamped-out state <NUM>. The figures show a part of the linking bar <NUM>, the front protection crimp <NUM>, the conductor crimp <NUM>, the transition region <NUM> and a portion of the isolation crimps <NUM>. The crimp back <NUM> is indicated by a dashed line. That side of the crimp contact <NUM> visible in the figures is a conductor-receiving side <NUM>. This conductor-receiving side <NUM> points, in the preformed state <NUM> (not shown), into the receptacle <NUM> and, in the crimped state (not shown), into the crimp interior <NUM> (not shown).

Furthermore, the wings <NUM> and the variously formed conductor-displacing members <NUM> are shown in each case in <FIG>. The crimp flanks <NUM> are in each case situated to the left and right respectively of the crimp back <NUM> and extend from the isolation crimp <NUM> up to the front protection crimp <NUM>.

Serrations <NUM> and end markings <NUM> situated in the conductor crimp <NUM> are also shown. The end markings <NUM> are two-part in the shown embodiments of the crimp contact, but in other configurations can be formed as one part and extend from the left crimp flank <NUM> over the crimp back <NUM> to the right crimp flank <NUM>. The end markings are surface structures which are oriented substantially perpendicular to the longitudinal direction <NUM> and which can, for example, be embossed.

The end markings <NUM> indicate to the end user up to where the stripped end of the conductor <NUM> (not shown) has to be pushed, counter to the longitudinal direction <NUM>, into the crimp sleeve <NUM> which is created by bending the two crimp flanks <NUM> up out of the plane of projection. The end markings <NUM> are thus situated between the front protection crimp <NUM> and the conductor crimp <NUM>.

The crimp contact <NUM> configuration shown in <FIG> has, at the ends <NUM> of the wings <NUM>, conductor-displacing members <NUM> formed as displacing barbs <NUM>.

These displacing barbs <NUM> each directly adjoin the end <NUM> of the wing <NUM>, i.e. in contrast to the displacing barbs <NUM> shown in <FIG> they are not at a distance from the end <NUM> of the wing <NUM>.

The configuration of the crimp contact <NUM> of <FIG> has conductor-displacing members <NUM> which are formed as displacing barbs <NUM> and which are each formed at the base <NUM> of a wing <NUM>. It can also be seen that the wings <NUM> have an incline <NUM> at the front end <NUM> of the crimp contact <NUM>.

If the section from <FIG> is examined for this, it can be seen that the base <NUM> of a wing <NUM> in the crimped state of the crimp contact <NUM> has a larger radius of curvature than is the case for the end <NUM> of the respective wing <NUM>.

With the shown incline <NUM>, it can be ensured that the wing <NUM> is rolled up towards the base <NUM> starting with the end <NUM>.

<FIG> shows a configuration of the crimp contact <NUM> which has symmetrical wings <NUM> and displacing barbs <NUM> arranged antisymmetrically on these wings <NUM>.

This can be seen particularly well with reference to a centre axis <NUM>. The ends <NUM> of the wings <NUM> are in each case at a distance from the centre axis <NUM> at the distance of the length of the wing lF.

A first displacing barb 57a is situated at the distance 73a from the centre axis <NUM>, with a gap 75a being situated at the same distance 73a on the opposite wing <NUM>.

A second gap 75b which is situated at a distance 73b from the centre axis <NUM> adjoins the first displacing barb 57a at the left wing <NUM>. At the same distance 73b a second displacing barb 57b is situated on the right wing <NUM>.

At the distance 73c, a third displacing barb 57c is situated on the left wing <NUM> and a third gap 75c is situated on the right wing <NUM>. At the distance 73d, there are situated a fourth gap 75d on the left wing <NUM> and a fourth displacing barb 57d on the right wing <NUM>. A fifth displacing barb 57e adjoins the fourth gap 45d of the left wing <NUM> at a distance of 73e relative to the centre axis <NUM>. At the right wing <NUM>, adjoining the fourth displacing barb 57d, a fifth gap 75e is arranged at a distance of 73e relative to the centre axis <NUM>.

The displacing barbs 57a-57e and the gaps 75a-75e are thus arranged antisymmetrically relative to the centre axis <NUM>, the distances being measured relative to the centre axis <NUM>.

<FIG> show two further configurations of the crimp contact <NUM> in the stamped-out state <NUM>. In these configurations, the conductor-displacing member <NUM> is present in each case in the form of a widened base <NUM> of the wing <NUM>. These widened bases <NUM> are in each case characterised by a region which is surrounded by a dashed line.

Counter to the longitudinal direction <NUM>, the wing <NUM>, at the height of the end markings <NUM>, directly adjoins in each case the widened bases <NUM>. The widened bases <NUM> shown in <FIG> in each case extend in a tapering manner from the crimp flanks <NUM> up to the ends <NUM> of the wings <NUM>.

The configuration of the crimp contact <NUM> of <FIG> has serrations <NUM> which extend from a widened base <NUM> to the widened base <NUM> which is situated opposite.

Serrations <NUM> represent a possible configuration of elements for piercing through an oxide layer <NUM>. In this case, the serration 25a formed in the conductor crimp <NUM> in <FIG> is the element for breaking through an oxide layer <NUM>, with which the oxide layers of the outwardly situated single strands <NUM> (not shown) are pierced through, while the regions of the serrations 25b of the widened bases <NUM> are curved during crimping between the single strands <NUM> (not shown) and thus enable a piercing-through of the oxide layers of the inner single strands 45a (not shown).

After the oxide layers are pierced through, an electrical contact is created between the crimp contact <NUM> and the conductor <NUM> (not shown) by means of the widened bases <NUM> located between the inner single strands 45a (not shown).

The serrations <NUM> shown in <FIG> are continuous in the embodiment shown, but can consist of several sections in other configurations.

<FIG> shows a configuration of the crimp contact <NUM> which has widened bases <NUM> of the wings <NUM> as conductor-displacing members <NUM>. In contrast to the configuration of the crimp contact <NUM> shown in <FIG>, the configuration shown in <FIG> has no serrations <NUM> in the region of the widened bases <NUM>, but rather has bores <NUM> which are used as elements for piercing through an oxide layer <NUM>.

Claim 1:
A crimp contact (<NUM>) for crimping at least one multicore aluminium conductor (<NUM>) with at least one crimpable crimp flank (<NUM>) for enclosing the conductor (<NUM>) subsequent to crimping and with a receptacle (<NUM>) for the conductor (<NUM>) which extends in a longitudinal direction (<NUM>) of the crimp contact (<NUM>) to a receptacle end (<NUM>) for aligning with an end of the conductor (<NUM>), wherein the crimp flank (<NUM>) extends in the longitudinal direction (<NUM>) over the receptacle end (<NUM>) to a front end (<NUM>) and wherein inbetween the receptacle end (<NUM>) and the front end (<NUM>), a wing (<NUM>) is provided which, transversely to the longitudinal direction (<NUM>), protrudes from the crimp flank (<NUM>), wherein the wing (<NUM>) forms a conductor-displacing member (<NUM>) which overlaps the receptacle (<NUM>) for the conductor (<NUM>) in the longitudinal direction (<NUM>), and at the wing (<NUM>), at a distance from the crimp flank (<NUM>) there is provided at least one conductor-displacing member (<NUM>) which is formed as a displacing barb (<NUM>) and which protrudes from the wing (<NUM>) in a longitudinal direction (<NUM>), directed away from the front end (<NUM>), characterised in that the wing (<NUM>) has a plurality of displacing barbs (<NUM>) distributed perpendicular to the longitudinal direction (<NUM>) on the wing (<NUM>).