DE102022201533A1 - Highly vibration-resistant line connection between a line connector and a connecting line with a compensation element formed from the connecting line itself - Google Patents

Abstract

The invention relates to a line connection between a plug-in contact (10, 20, 30) and an insulated connecting line (60), the plug-in contact (10, 20, 30) having at least one contact element (30) which, when contacted, is inside a stripping end (41 ) of a strand (40) of the connecting line (60) is connected to the connecting line (60) in a contact area (41-1). It is provided that within the stripping end (41') of the connecting line (60) between the contact area (41Ü -1) of the contact element (30) and the insulated connection line (60), a compensation element (3060) is formed, which forms a loop area (41Ü-2) within the stripping end (41') of the stranded wire (40), in which the individual wires ( 40n) of the stranded wire (40) are exhibited in the form of a loop. The arrangement of the line connection in a plug housing is described.

Description

The invention relates to a highly vibration-resistant plug connection between a plug connector and an insulated connecting line, the plug connector having at least one contact element which, in the contacted state, is connected to the connecting line in a contact area within a stripped end of a stranded wire of the connecting line.

Highly vibration-resistant plug connections are intended in particular for manual assembly in the field of vehicle electrical system production. With electrical plug connections in general, the risk of fretting corrosion increases with the magnitude of the dynamic load. Fretting corrosion can lead to high resistances caused by wear through of the surface finish or embedding of oxidation products in the contact surfaces. Both processes are disadvantageous consequences of the relative movements of the contact partners.

In order to protect the plug contacts from excessive dynamic loads, structural measures can be taken on the plug housing. For example, it is known that cable clamps are designed as additional components and oversize crash ribs to eliminate the plug-in play between the plug-in housings, which absorb corresponding forces transversely to the connecting line. However, the effectiveness of such cable clamps is limited by the material properties of the connection line and is therefore only partially effective. In other words, such structural measures on the connector housing do not adequately reduce forces in the direction of the connection line.

Other known measures on plug housings to protect the plug contacts from excessive dynamic loads consist in compensating for inertial forces acting in the longitudinal direction of the connection line by means of a kind of meander. It is provided that between the conductor connection and the contact spring of the contact socket, a pair of slots is arranged in an offset manner, which springs when the corresponding forces are applied and thus prevents these forces from being able to act on the contact point.

As the state of the art, the publications DE 297 16 767 U1 , DE 10 2014 006 244 A1 and DE 10 2020 205 014 A1 called.

The invention is based on the object of creating a high-vibration-resistant connection, in particular a plug-in connection, in which a contact element of the connection connected to a line is protected from excessive dynamic loads.

The proposed invention provides for the compensation of external forces acting in the direction of the line to be compensated for in the line itself, in particular in a connecting line itself.

The cable clamp for absorbing forces transverse to the line direction of the connection line is advantageously integrated into the constructive solution.

The connecting cable is a stranded cable consisting of individual wires, whose mutual arrangement is stabilized by stranding.

The stranding of electrical lines (cables) means that the individual wires are twisted against each other. They are wound helically around the stranding axis. This process is also known as twisting.

It is proposed to eliminate over-twisting of the connecting cable in the area of a stripping end of the connecting cable directly in front of the connection to a contact element, which reduces the buckling resistance of the cable in this area, whereby the forces addressed are compensated for in a compensation element formed as a result, so that the forces in advantageously can not act on the contact element, as explained in more detail in the description. Automated contact assembly facilitates the proposed implementation and is also explained in the description.

In the context of the invention, stranding of the connection line in the region of a stripping end is understood to mean the stranding of the stripping end of a connection line that has not yet been stranded during assembly.

In the context of the invention, over-twisting of the connection line in the region of a stripping end is understood to mean the additional stranding=over-twisting of the stripping end of a connection line that has already been stranded during assembly.

This electrical connection according to the invention, which is subjected to high dynamic loads, is required and provided for high-quality automated cable harness production. It can also be used, for example, for outdoor use, since the connection is arranged in a watertight manner in a preferred embodiment in a connector housing.

In detail, the starting point of the invention is a line connection between a plug contact and an insulated connecting line, the plug contact having at least one contact element which, in the contacted state, is connected to the connecting line in a contact area within a stripped end of a stranded wire of the connecting line.

According to the invention, a compensation element is formed within the stripping end of the connecting lead between the contact area of the contact element and the insulated connecting lead, which forms a loop area within the stripping end of the litz wire, in which the individual wires of the litz wire are looped.

The advantage consists in compensating for external forces acting in the line direction in the line itself, in particular in the connecting line itself, in which the individual strands of the stranded wire are laid out in a loop shape.

The invention works in an advantageous manner regardless of whether the individual wires of the stranded wire in the connection line are arranged in a ready-made state without stranding or already stranded.

In one embodiment, it is provided that the individual wires of the stranded wire are arranged in a non-stranded manner in the connection line in a ready-made state, with the individual ends of the individual wires of the stranded wire being arranged stranded in the contact area of the contact element.

In another embodiment it is provided that the individual wires of the stranded wire are arranged stranded in the connection line in a different assembly state and the individual ends of the individual wires of the stranded wire in the contact area of the contact element are further stranded in the existing stranding direction and are thus arranged overtwisted.

It is provided that the stripping end has a length that is made up of a partial length of the contact area and a partial length of the loop area.

The stranded or twisted individual ends of the individual wires of the stranded wire of the stripping end at the free end of the free stripping end, the stripping end is characterized in that the individual ends of the individual wires of the stranded wire (after stranding or twisting) are not or no longer in the cutting plane of the free end of the stripping end complete.

The line connection is preferably characterized in that a clamping part is arranged pushed onto the insulated line end of the connection line, which advantageously forms a type of stationary clamp bearing for the connection line, which grips around the insulation and the stranded wire.

The clamping part has a sealing element which clamps in connection with the connecting line in the plug housing and at the same time advantageously seals the plug housing with respect to the connecting line.

Finally, it is provided that the overspring element has an outer contour that corresponds to the inner contour of a plug housing, so that the plug contact is advantageously arranged in the plug housing in a twist-proof manner, so that the plug housing and thus the plug contact forms a counter bearing when plugged in, whereby the clamping part is rotatable relative to the plug contact, as explained in more detail in the description.

• 1 eine herkömmliche Steckverbindung;
• 2 ein herkömmliches Abisolierende;
• 3 ein erfindungsgemäßes Abisolierende mit einem Klemmteil;
• 4 einen Schnitt A-A durch das Abisolierende gemäß 3;
• 5 ein Steckgehäuse mit einer erfindungsgemäßen hochschwingfesten Steckverbindung.
• 1 zeigt eine herkömmliche Steckverbindung. Ein Steckkontakt umfasst ein Überfederelement 10, mit dem der Kontakthalt in einem Steckgehäuse 100 sowie über Kontaktnormalkräfte erreicht wird, wie noch erläutert wird.

The invention is explained below with reference to the accompanying drawings. Show it:

• 1 a conventional connector;
• 2 a conventional stripper end;
• 3 a stripping end according to the invention with a clamping part;
• 4 according to a section AA through the stripping end 3 ;
• 5 a plug housing with a high-vibration-proof plug connection according to the invention.
• 1 shows a conventional connector. A plug contact includes an overspring element 10 with which the contact is held in a plug housing 100 and via contact normal forces, as will be explained below.

The overspring element 10 is positively connected at one end to a contact body 20 so that it cannot be lost. The contact body 20 has contact springs and the crimp connection 30 for connection to a connecting line.

The over-spring element 10, the contact body 20 and the contact element 30 form the plug-in contact.

Mass forces acting in the longitudinal direction of a connection line 60 are compensated for by the formation of the meander. It is provided, for example, that a pair of slots is offset between the conductor connection and the over-spring element 10, which is at ent speaking forces and thus prevents these forces from acting on the so-called contact point.

The connection 3040 between the contact element 30 and a stripping end 41 of the connection line 60 is referred to by the person skilled in the art as a crimp connection when used. In this solution, the stranded wire 40 of the connection line 60 and the crimp are mechanically and electrically connected to one another by the connection 3040 in a non-soldering and non-positive manner.

A according to the embodiment 1 arranged lead-side single conductor crimp 31 holds a terminal-side sealing member 62 which seals the lead 60 . In the exemplary embodiment, the individual conductor crimp 31 is received in a form-fitting manner by the contact element 30 .

The non-positive mechanical connection 3040 is required for the manufacturing process of the plug connections of the wiring harnesses.

The non-positive mechanical connection 3040 is to the same extent a transmission element of corresponding forces on the contact point in the case of external dynamic loads. The contact point, which is in the area of the non-positive mechanical connection 3040, absorbs those forces that are not compensated for by relative movements of the over-spring element 10 designed as a meander.

It is achieved according to the invention, as will be explained below, that forces which act as a result of external dynamic loads through the connection line 60 in the plug-in direction S at the contact point, i.e. in the connection 3040`, are compensated for by appropriate compensation in the sense of avoiding the acting forces , the compensation being achieved by additional stranding of the stranded wire 40 in the area of the stripping end 41 compared to the original stranding of the stranded wire 40 of the connection line 60, as will be explained in more detail below.

This additional stranding of the stranded wire 40 in the region of the stripping end 41 of the connection line 60 is referred to below as overtwisted stripping end 41Ü' of the connection line, the connection between the stranded wire 40 of the stripping end 41 and the contact element 30 (crimp) being identified by the reference number 3040'.

The invention also provides what is known as a compensation element 3060, which is formed from the connecting line 60 itself, with the compensation element 3060 preferably being provided during the assembly of the “crimped” contact element 30 (crimp) in the plug-in housing 100 (compare in advance 5 ) to arrange.

The compensation element 3060 will be explained in more detail.

Forces transverse to the plug-in direction S (arrow with reference sign S), which corresponds to the longitudinal extension of the connection line 60, can be absorbed by the line clamping according to the invention with the aid of the connection 3040' and the associated compensation element 3060 and can also be introduced into the plug-in housing 100.

The solution according to the invention can be used in particular to implement coupling points with plug-in contacts if the coupling point cannot be led out of the dynamically loaded area.

The 2 shows a conventional stripping end 41' of a connecting line 60, as prepared for contacting a connecting line 60 with a contact element 30 (crimp).

The stripping length of the insulation 61 of the contact end 41 is determined according to the specifications of the contact manufacturer and essentially corresponds to the length of the longitudinal flanks of the contact element 30 (crimp).

The individual ends of the stranded wire 40 that have been stripped of their insulation are located in one plane, transverse to the longitudinal extension of the connecting line 60 .

The 3 shows an inventive stripping end 41' of the connection line 60 for producing a compensation connection proposed according to the invention with a compensation element 3060 adjoining the connection 3040`, which in 5 is shown.

It is provided that the stripping length of the stripping end 41' is substantially greater than the stripping length of the stripping end 41 which is required for the 2 described conventional crimp connection 3040 is required.

It is provided that a clamping part 50 is/is pushed onto the insulating end of the connection line 60, as in 3 is shown.

A connection 5060 between the inside of the clamping part 50 and the outside (shell surface) of the insulation 61 of the connection line 60 is designed as firmly as possible to effectively absorb the transverse forces acting transversely to the longitudinal extent of the connection line 60 .

In a preferred embodiment, it is provided that the shape, in particular the inner contour of the clamping part 50, is selected to be appropriately adapted for the assembly process, with the dimensional stability of the insulation 61 of the connecting line 60 preferably being reduced by heating in order to facilitate assembly and to increase the accuracy of fit between the inside of the clamping part 50 and the outside (shell surface) of the insulation 61 of the connection line 60 .

According to the invention, it is further provided that the individual ends of the individual wires of the stranded wire 40 of the stripping end 41'—before they are contacted in the contact area 41'-1—do not end in the cutting plane of the free end of the stripping end 41'. Provision is made for the outer individual wires 40n _{a of} the stranded wire 40 to spring back in the direction of the connection line 60, as in FIG 5 is clarified.

In order to achieve the springback of the outer individual wires 40n _{a of} the stranded wire 40, the previously separated insulation part (not shown) of the insulation 61 is rotated according to the invention with a rotary movement (rotation about a central axis 60M running in the longitudinal extension of the connecting line 60) either in one direction of rotation about a first Angle of rotation stranded or twisted further by the first angle of rotation or further stranded, i.e. overtwisted, in the direction of rotation that is already predetermined by the direction of rotation of the originally existing cable stranding.

That is, the insulating part is pulled off the stripping end 41 of the connection line 60, whereby the in 3 illustrated stranded or overtwisted stripping end 41' is produced.

When the line is originally produced, the insulation 61 is extruded onto the stranded individual wires of the stranded wire 40, that is to say it encloses the individual wires of the stranded wire 40 in such a way that—cf 4 - The outer individual wires 40n _a of the stranded wire 40n are taken along by the twisting of the subsequently severed insulation part during the stripping of the connecting line 60, which is carried out around the central axis 60M running in the longitudinal extent of the connecting line 60.

In other words, in particular the outer individual wires 40n _a of the stranded wire 40 are twisted in the stranding direction when the connecting line 60 is stripped or are carried along further in the stranding direction and twisted, with the inner individual wires 40n _{i of} the stranded wire 40 also being carried along, and also the remaining insulation 61 at least slightly twisted at the ends, as indicated by the shape of the cable insulation in 4 is made clear. The inner individual wires 40n _i of the stranded wire 40 are twisted less than the outer wires 40n _a .

The stranded or overtwisted stripping end 41' of the connection line 60, as described above, forms a first area 41Ü-1, which serves as a contact area, and a second area 41Ü-2, from which a loop area is formed, with (compare above 5 ) the loop area between the contact element 30 (crimp) and the clamping part 50 of the connecting line 60 forms the compensation element 3060 according to the invention.

The compensation element 3060 is thus defined as a loop area 41Ü-2 of the stranded or overtwisted stripping end 41′ formed from stripped individual wires 40n of the stranded wire 40 .

It is provided according to the invention that the first area 41Ü-1, which is formed by the rotary movement of the separated insulation part, is crimped with the contact element 30 (crimp).

It is also provided that the contact element 30 (crimp) and the connection line 60, which are connected to one another (crimped) in the stranded or overtwisted state of the stripping end 41', are rotated relative to one another counter to the stranding direction or the rectified overtwisting direction of the connection line 60, i.e. rotated back are, in principle, the contact element 30 (crimp) and / or the connecting line 60 can be rotated.

If the contact element 30 (crimp) and/or the connecting line 60 is rotated counter to the original stranding direction or the rectified overtwisting direction, a force acts in particular on the outer individual wires 40n _a of the stranded wire 40, which causes the individual wires 40n to buckle or form protruding ones Loops that leads in 5 are shown.

This means that in the loop area 41Ü-2 the stranding of the connection line 60 is essentially broken up with the loops formed by this procedure.

As explained, a compensation element 3060 is thus formed, which is limited on one side by the contact element 30 (crimp) and on the other side by the resistance of the insulation 61 and the individual wires 40n of the stranded wire 40 of the connecting line 60 lying in the insulation 61.

The importance of the already mentioned clamping part 50, which is slipped onto the insulating end of the connection line 60, is explained in detail below.

• Das Klemmteil 50 dient zur ortsfesten Fixierung der Anschlussleitung 60 beim Abisolieren des Abisolierendes 41' und zur Erzeugung des verseilten oder überdrillten Abisolierendes 41Ü'.
• Das Klemmteil 50 hält zudem das Abisolierende 41' der Anschlussleitung 60 ortsfest, wenn das Kontaktelement 30 (Crimp) und die Anschlussleitung 60 im verseilten oder überdrillten Zustand des Abisolierendes 41' miteinander verbunden (gecrimpt) werden.
• Das Klemmteil 50 dient zudem zum Klemmen der Anschlussleitung 60 in dem Steckgehäuse 100 (vergleiche 5) und zur Aufnahme und Übertragung äußerer Kräfte, die quer zur Leitungs- beziehungsweise Steckrichtung S wirken können.

That in the 3 and 5 The clamping part 50 shown must fulfill several functions:

• The clamping part 50 is used for stationary fixing of the connection line 60 when stripping the stripping end 41' and for producing the stranded or twisted stripping end 41Ü'.
• The clamping part 50 also holds the stripping end 41' of the connection line 60 in place when the contact element 30 (crimp) and the connection line 60 are connected (crimped) to one another in the stranded or twisted state of the stripping end 41'.
• The clamping part 50 is also used to clamp the connection line 60 in the plug-in housing 100 (cf 5 ) and for absorbing and transmitting external forces that can act transversely to the line or plug-in direction S.

So that the clamping function of the clamping part 50 is retained as far as possible when exposed to high temperatures, the heat resistance of the insulating material of the insulation 61 of the connection line 60 and of the plug-in housing 100 is taken into account.

The contact surfaces 50A, 50B of the clamping part 50 (at 50A) between the inner surface of the plug housing 100 and (at 50B) the outer surface of the insulation 61 are dimensioned so large that material that flows under the effect of heat, in particular the insulation 61, is preferably used to to generate a form-fitting clamping effect that is so large that a possible loss of adhesion is compensated for by a correspondingly increasing adhesion.

This preferred measure ensures that the connection between the inside and outside of clamping part 50 and the outside (shell surface) of insulation 61 of connecting line 60 and the inside of plug-in housing 100 is as effective as possible for absorbing the transverse forces acting transversely to the longitudinal extension of connecting line 60 is stationary.

The flexural rigidity of the connection line 60 can be increased by stranding or over-twisting--in the area in which the over-twisting takes place--which supports automated contact assembly.

This limits the possible path of relative movements of clamping part 50 and plug-in housing 100, which may be required to produce a positive and/or non-positive connection.

It is provided that the stranded or overtwisted stripping end 41′ of the connection line 60 is twisted back against the stranding direction or the rectified overtwisting direction before the contact latches in the plug housing 100, as will be explained below.

The plug-in housing 100 serves as an abutment for the required torque and the contact connection 3040' according to the invention is already securely positioned in the plug-in housing 100.

In order to be able to precisely produce the high-vibration-resistant connection consisting of the contact connection 3040' and the compensation element 3060, the repeatability of the torsion angle when rotating the stripping end 41 before crimping and when rotating back the connecting line 60 after the production of the contact connection 3040' is also increased with the clamping part 50. secured.

It is preferably provided that the clamping part 50 before the stripping of the stranded stripping end 41 - as explained (cf 5 ) - is pushed onto the insulated cable end of the connecting cable 60.

The line end of the connecting line 60 is stripped according to the predetermined stripping length of the stripping end 41' to be produced, with the individual wires 40n of the stranded wire 40 being twisted relative to the clamping part 50 held in place in this step at the same time as stripping.

The repeatability of this twisting is ensured by the force and threading of the stripping device.

After this first rotation, the contact connection 3040' is established.

Subsequently, the contact connection 3040`, that is to say the previously produced stranded or overtwisted stripping end 41', is turned back against the clamping part 50 in order to achieve the loop formation and to form the compensation element 3060.

It is clear that, according to this preferred procedure, the clamping part 50 is and remains in a fixed position during both turning processes, with the stranded wire 40 being rotated relative to the clamping part 50 in the first rotating process (when stripping) and the contact connection established after the first rotating process in the second rotating process 3040' is rotated in the opposite direction. The detailed procedure is explained below.

By detecting the first twisting angle of a stripping tool (not shown) relative to clamping part 50 during the first turning process and a second twisting angle of the subsequently produced contact connection 3040' during the second turning process relative to clamping part 50, the repeatability of the loop formation for producing the compensation element and the angular orientation of the Contact connection 3040 'relative to the clamping part 50 ensured.

It goes without saying that the first angle of rotation (before contacting/crimping) and the second angle of rotation (after contacting/crimping) can be the same or different.

The first angle of rotation is defined as the twisting angle of the twisting of the insulating part when twisting the insulating part away from the free end of the connecting line 60, ie relative to the connecting line 60, which entrains the individual wires 40n in the twisting direction. This can be an angle of twist that strands an unstranded connection line 60 in the region of the stripping end 41 or strands an already prefabricated stranded connection line 60 in the region of the stripping end 41 further in the twisting direction and thus overtwist.

The second angle of rotation is defined as the angle of rotation of the rotation of the clamping part 50 relative to the contact element 30 of the plug contact 10, 20, 30, the compensation element 3060 being formed with this rotation, as will be explained below. The twisting direction of the second angle of rotation is opposite to the first angle of rotation with regard to the rotary movement.

The rotation of the insulating part and the clamping part 50 via the respective angle of rotation takes place around the central axis 60M of the connection line 60.

Together with the structural designs for the orientation of the clamping part 50 mounted in the plug-in housing 100, the orientation of the contact connection 3040' in terms of the position of the contact element 30 of the plug-in contact 10, 20, 30 within the plug-in housing 100 in relation to the clamping part 50 and the loop formation is clearly defined and reproducible , so that the required repeatability can be achieved, as will be explained.

5 shows a summary of the over-spring element 10 with the contact body 20 and contact element 30 and the contact connection 3040' in the plug-in housing 100 or a corresponding contact chamber of the plug-in housing 100.

After the contact connection/crimp connection 3040' has been established, the individual wires 40n of the stranded wire 40 of the connection line 60 are looped out by reverse torsion by the second angle of rotation, forming the compensation element 3060, and with the overspring element 10 and the clamping part 50 in a preferred embodiment of the invention in the plug housing 100 fixed.

The compensation element 3060 advantageously absorbs the forces that act as a result of external dynamic loads through the connection line, that is to say in the plug-in direction S of the plug-in contact 10, 20, 30. The compensation thus takes place in the connection line 60 itself, with the compensation element 3060 being designed as a loop area of the stripping end 41 ′ of the connection line 60 .

The compensation element 3060, which is formed from the connecting line 60 itself, can advantageously be formed in a method in which the plug-in element 10, 20, 30 is pushed into the plug-in housing 100 with the contact element 30 that has already been contacted, as explained below becomes.

• Das Kontaktelement 30 des Steckkontaktes 10, 20, 30 wird innerhalb des unverseilten oder verseilten Abisolierendes 41 der Litze 40 der Anschlussleitung 60 in einem Kontaktbereich 41'-1 mit der Anschlussleitung 60 verbunden, der in Längserstreckung der Anschlussleitung 60 neben einem Schlaufenbereich 41'-2 des Abisolierendes 41' der Litze 40 angeordnet ist.

Finally, the method for producing the line connection according to the invention, which is preferably arranged in a plug-in housing, is explained:

• The contact element 30 of the plug contact 10, 20, 30 is connected to the connecting line 60 within the stranded or stranded stripping end 41 of the stranded wire 40 of the connecting line 60 in a contact area 41'-1, which is in the longitudinal extent of the connecting line 60 next to a loop area 41'-2 of the stripping end 41' of the stranded wire 40 is arranged.

In a first step, the connection line 60 is provided with a clamping part 50 arranged in a stationary manner on the connection line 60 near the stripping end 41 ′.

The insulating part of the insulation 61 is then stripped from the connecting line 60, with the stripping end 41' being stranded by a first angle of rotation or more during stripping while the insulating part is simultaneously twisted about the central axis 60M of the connecting line 60, which is secured against twisting by means of the clamping part 50 stranded in the existing stranding direction and thus overtwisted.

It is provided that a length of the stripping end 41' according to the invention is the partial length of the contact area 41'-1 and the partial length of the loop area 41'-2.

Only then is the contact element 30 contacted in the contact area 41'-1 with the stranded or overtwisted stripping end 41'.

Then the plug contact 10, 20, 30 is initially not fully inserted into the plug housing 100 in the plugging direction (cf 5 ) inserted, so that the plug contact 10, 20, 30 is arranged non-rotatably in the plug housing 100 about the central axis 60M, while the clamping part 50 in contrast to 5 is still arranged outside of the plug housing 100 accessible.

At this moment, the plug-in housing 100 serves as an abutment for the required torque for the subsequent turning of the clamping part 50 against the stranding direction or the rectified overtwisting direction, and the contact is positioned securely and non-rotatably in the plug-in housing 100 .

The clamping part 50 is now rotated by a second angle of rotation counter to the stranding direction or the rectified overtwisting direction, so that in the loop area 41`-2 the in 5 compensation element 3060 shown, which is distinguished by the individual wires 40n of the stranded wire 40 that are exhibited in the form of a loop.

Finally, the plug contact 10, 20, 30 - as in 5 shown - fully inserted further into the plug housing in the plug-in direction S, as a result of which the plug contact 10, 20, 30 is fixed in the plug housing 100 by means arranged on the plug contact, in particular by means arranged on the overspring element 10, in particular with little play in relation to the plug housing 100 snaps. It is pointed out that it is not the insertion of the clamping part 50 that leads to the formation of the loop-shaped exposed individual wires 40n of the stranded wire 40 . The length of the loop between the end face of the contact element 30 and the end face of the insulation 61 of the connecting cable is determined by the amount of stranding of the stripping end 41' compared to an unstranded stranded wire 40 or measures to overtwist an already stranded stripping end 41`.

If, on the side opposite connecting line 60, a plug is inserted into overspring element 10, which is designed with a socket and is connected, for example, to a unit that exerts dynamic forces on plug contact 10, 20, 30 in plug-in direction S, or if dynamic forces are exerted by the Connection line 60 introduced in the plug-in direction S of the plug-in contact 10, 20, 30, so in both cases the compensation element 3060 ensures that the forces in the compensation element 3060 are compensated.

Reference List

10

overspring element

20

contact body

30

Contact element (crimp on plug contact side)

31

Contact element (terminal-side crimp)

40

strand

40n

Individual wires of the strand (n = number of individual wires)

40ni

internal single wires

40na

external individual wires

41

Stripping (state of the art)

41r

overtwisted stripping end

41'

stripping end

41'-1

contact area

41'-2

loop area

50

clamping part

50A

touch surface

50B

touch surface

51

sealing element

60

connecting cable

60M

central axis of the connecting cable

61

isolation

62

sealing element

3040

Contact connection (state of the art)

3040`

contact connection

3060

compensation element

5060

Connection

100

plug housing

S

mating direction

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 29716767 U1 [0005]
• DE 102014006244 A1 [0005]
• DE 102020205014 A1 [0005]

Claims (10)

Line connection between a plug contact (10, 20, 30) and an insulated connecting line (60), the plug contact (10, 20, 30) having at least one contact element (30) which, in the contacted state, is inside a stripped end (41) of a stranded wire ( 40) of the connecting line (60) is connected to the connecting line (60) in a contact area (41-1), characterized in that within the stripping end (41') of the connecting line (60) between the contact area (41Ü-1) of the contact element (30) and the insulated connection line (60), a compensation element (3060) is formed, which forms a loop area (41Ü-2) inside the stripping end (41') of the stranded wire (40), in which the individual wires (40n) of the stranded wire ( 40) are looped. line connection claim 1 , characterized in that the individual wires (40n) of the stranded wire (40) in the connection line (60) are arranged without being stranded in a ready-made state, the individual ends of the individual wires (40n) of the stranded wire (40) being in the contact area (41`-1) of the Contact element (30) are arranged stranded. line connection claim 1 , characterized in that the individual wires (40n) of the stranded wire (40) are arranged stranded in the connecting line (60) in a different assembly state, the individual ends of the individual wires (40n) of the stranded wire (40) being in the contact area (41Ü-1) of the Contact element (30) are further stranded in the existing stranding direction and are thus overtwisted. line connection claim 1 , characterized in that the stripping end (41') has a length which is composed of a partial length of the contact area (41Ü-1) and a partial length of the loop area (41Ü-2). line connection claim 2 or after claim 3 , characterized in that the stranded or overtwisted individual ends of the individual wires (40n) of the stranded wire (40) of the stripping end (41') at the free end of the free stripping end (41') are not in the cutting plane of the free end of the stripping end (41') complete. line connection claim 1 , characterized in that a clamping part (50) is arranged pushed onto the insulated line end of the connection line (60). line connection claim 1 , characterized in that the clamping part (50) has sealing elements (51). line connection claim 1 , characterized in that the over-spring element (10) has an outer contour which corresponds to the inner contour of a plug-in housing (100), so that the plug-in contact (10, 20, 30) is arranged in the plug-in housing (100) so that it cannot rotate. Plug housing (100) with a line connection, characterized in that in the plug housing (100) a line connection according to at least one of Claims 1 until 8th is arranged, wherein a compensation element (3060) is arranged between the plug contact (10, 20, 30) and the clamping part (50). Method for producing a line connection according to at least one of Claims 1 until 8th in a plug housing (100). claim 9 , characterized in that a contact element (30) of a plug contact (10, 20, 30) within an unstranded or stranded stripping end (41) of a stranded wire (40) of the connecting line (60) in a contact area (41'-1) with the connecting line (60) is connected, which is arranged in the longitudinal extent of the connecting line (60) next to a loop area (41`-2) of the stripping end (41') of a stranded wire (40), wherein • the connecting line (60) close to the stripping end (41` ) is provided with a stationary clamping part (50) arranged on the connecting line (60), after which • an insulating part of the insulation (61) is stripped from the connecting line (60), the stripping end (41') being stripped while the insulating part is twisted at the same time around the central axis (60M) of the connection line (60), which is secured against twisting by means of the clamping part (50), stranded through a first angle of rotation or further stranded in the existing stranding direction and thus overtwisted, with • a length of the stripping end (41' ) corresponds to the partial length of the contact area (41`-1) and the partial length of the loop area (41`-2), after which • the contact element (30) in the contact area (41`-1) makes contact with the stranded or overtwisted stripping end (41'). after which • the plug contact (10, 20, 30) is not yet fully inserted into the plug housing (100) in the plugging direction (S), but in such a way that the plug contact (10, 20, 30) cannot rotate in the plug housing (100). is arranged while the clamping part (50) is still outside of the plug-in housing (100) accessible, after which • the clamping part (50) is rotated by a second angle of rotation counter to the stranding direction or the rectified overtwisting direction, so that in Loop area (41'-2) forms the compensation element (3060), which is characterized by loop-shaped individual wires (40n) of the stranded wire (40), wherein • the plug contact (10, 20, 30) finally extends completely further in the plug-in direction (S) in the plug housing (100) is plugged in, as a result of which the plug contact (10, 20, 30) is fixed in the plug housing (100) by means arranged on the plug contact (10, 20, 30), in particular by means arranged on the overspring element (10), especially snaps.

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