WO2018059666A1

WO2018059666A1 - Connection part, cover nut, plastic sealing sleeve for a conductor connection and sealed connection between two conductors

Info

Publication number: WO2018059666A1
Application number: PCT/EP2016/072974
Authority: WO
Inventors: Jens Trimborn
Original assignee: Jens Trimborn
Priority date: 2016-09-27
Filing date: 2016-09-27
Publication date: 2018-04-05

Abstract

The invention first relates to a plastic sealing sleeve (13) for a conductor connection between a first conductor (1) and a second conductor (11), wherein, in the connection state, the first conductor (1) is connected to the second conductor (11) by means of a mandrel (12) which produces a conductive connection, and the mandrel (12) passes through an insertion region (8) of the first conductor (1). In order to further improve such a sealing sleeve, the sealing sleeve (13) can be slipped over the first conductor (1) and, at its end associated with the insertion region (8) of the first conductor (1), said sealing sleeve (13) comprises a receiving region (15) that is completely enclosed, transversely to a direction of passage (r), for the first conductor (1), and a through-opening (17) in the direction of passage (r), wherein the through-opening (17) in the direction of passage (r) comprises a first and a second opening edge and has a closed peripheral sealing lip (18) at least on the second opening edge and, at its end facing away from the connection region, the sealing sleeve (13) is configured for a sealing interaction with the first conductor (1). The invention also relates to a connection part for an electrical connection between two electrical conductors. The invention further relates to a housing for sealing an electrical connection between two electrical conductors.

Description

CONNECTING PART, COVER, PLASTIC SEAL FOR A LADDER CONNECTION AND SEALED CONNECTION BETWEEN TWO LADDERS

The invention firstly relates to a connecting part for the electrical connection between two electrical conductors, with a metallic electrical conductor element which is surrounded in any case in a connection area with a resiliently resilient plastic and forms a sealing lip surrounding the connection area, wherein the connection area has an opening which by a connecting means, such as a screw or a bolt, in an enforcement direction is enforceable.

Connecting parts of the type in question are known. These serve for electrical connection of two electrical conductors, wherein the connecting part is arranged on one of the electrical conductors. The provided in the connecting part, coated with plastic conductor element is electrically connected to a terminal portion of a first conductor.

The plastic sheath serves for electrical insulation of the connection area. An elastically resilient sealing lip can in particular serve for the production of an electrical connection which is sealed against penetration of moisture from the outside.

With regard to the cited prior art, the invention is concerned with the task of specifying an advantageous connecting part.

A possible solution to this problem is given according to a first idea of the invention in a connecting part, in which it is aimed that the conductor element in a cross section in which the enforcement direction appears as a line, a first region at a first height level and a second region on a second height level, the first Area is further away from the opening than the second area (as seen in the longitudinal direction of the conductor element and / or the connected conductor), the first region is the second region upstream in the through-hole and the sealing lip is formed surrounding the second region, wherein at the region at the higher height level at a further distance to the opening can still connect a connecting portion forming on one or more height levels and that the sealing lip in the enforcement direction in the un deformed state on the second sealing area exposed by the sealing lip side, but by deformation to is zurückdrängbar in a plane which forms the bottom of the second area.

The first region of the conductor element is used in particular for electrically conductive connection with the associated conductor. This connection region between the first region of the conductor element and the conductor or its connection region is preferably enveloped by the plastic of the connection part.

The second region of the conductor element extends in the direction of enforcement offset from the first region, moreover preferably serves to establish an electrical connection with the other conductor, moreover according to the mechanical connection with the other conductor, for example, according to a screw connection. The offset in the direction of penetration from the second region to the first region of the conductor element preferably corresponds at least to the material thickness of the conductor element, preferably to a multiple of the conductor element thickness up to a tenfold. The plastic sheath, can be achieved according to encapsulation of the conductor element and the connection portion of the associated electrical conductor with plastic, in particular elastically resilient plastic. Also, the enclosure may be present as a separately manufactured component, which, if necessary, even after production of the electrical connection, is mountable in the connection area. Also, such a sheath may preferably be dismantled non-destructively.

The circumferential sealing lip serves to seal outwards against penetrating moisture in the connection position. Against the sealing lip acts in the connection position, a portion of a screw or a bolt, for example. The flat side of a nut or a screw head, in addition, possibly the flat side of a washer. It can also be provided that the connecting part has in a cross-sectional view two circumferential sealing lips, which are formed opposite with respect to the direction of enforcement. Thus, in such an embodiment viewed in the direction of enforcement on both sides of the passage opening provided a circumferential sealing lip.

Moreover, a sealing lip may be present in the direction of penetration with respect to the area of the plastic covering surrounding the sealing lips. Thus, a circumferential sealing lip may be formed like a bead, which is elastically deformable due to stress on a screw head or a nut.

The transition between the first and the second height level of the conductor element may be formed stepwise in cross section. Thus, a lowering given thereby can be rotationally symmetrical to an axis passing through the penetration opening of the conductor element in the second region. to be. The lowering can have a total of a pot-like shape, with a particular for electrical connection exposed pot bottom and a preferably perpendicular to the pot bottom plane pot wall. The conductor element is preferably free in the region of the pot bottom on both sides for electrical contacting. In a further development, the inner wall of the pot can also be exposed, ie not covered with plastic.

The surrounding plastic may continue opposite to the lowering given by the ladder element at a second height level into a freestanding collar. The collar may hereby be formed overall annular, with a preferred inner diameter, which may correspond to the free inner diameter of the pot-like reduction.

The collar may have a circumferential or circumferentially partially circumferential locking lip. This has in a preferred embodiment radially outward.

The locking lip can be used for locking connection with a cap. A captive in the lowering screw head or the like can be so covered by the sealing cap sealing. Due to the elastically resilient design of the plastic latching the closure cap on the collar, as well as a removal of the cap from the collar preferably without tools by the user can be brought. The cap can be present as a loose part. In a preferred embodiment, the closure cap is formed integrally with the plastic wrapper via a bendable extension. The bendable extension can be designed in the form of a strip of tape which, while retaining the connection of the closure cap to the plastic covering, allows it to be placed on or removed from the collar. In a further embodiment, the conductor element may be part of a cable lug.

One possible embodiment provides that the sealing lip is part of a folding or plug-in housing which can be applied to the conductor element. The housing may preferably be attached to the connecting area in a comprehensive manner after the electrical plug connection has been produced. The housing has one or more sealing lips, for sealing against at least one of the conductors, possibly against both conductors.

The housing may be a plastic housing, in particular hard plastic housing, which may be formed hinged on a joint training. The joint formation can be, for example, a film hinge joint. In the unfolded state, the housing is wrapped around the connection point and thereafter spent in a closed position in which the one or more seals sealingly against the one or both electrical conductors occurs. The housing closed position is preferably secured, for example, latched. Also, a plug housing may be provided, for example, consisting of two optionally initially separately present housing parts, such as housing halves. These can be plugged together to enclose the electrical connector. This housing closed position is preferably secured.

The housing-locking device can be reversible.

In addition or as an alternative to the one or more sealing lips acting axially in the direction of penetration, one or more, in particular two, radially acting sealing lips may also be provided. Furthermore, the invention relates to a housing for sealing an electrical connection between two electrical conductors. To further improve a housing of the type in question, it is proposed that the housing is designed as a folding or plug housing and has a molded or inserted sealing lip such that the sealing lip in the applied state on a conductor of the housing over a sealing lip-free area of Housing survives.

The sealing lip acts in the direction of enforcement of the conductor or the electrical connection region through the housing in the axial direction and / or radial direction against the one or both conductors of the electrical connection. The installation of the sealing lip to the electrical conductor is secured in the closed state of the housing.

It may in this regard be a folding housing, for example, consisting of two housing halves, which are connected to each other via a joint, further example hinge hinge. Also, the housing parts, such as housing halves, may be present as individual parts, to form a plug-in housing.

The folding or plug-closing position of the housing is preferably secured, for example, according to a catch.

When forming the housing as a folding housing, this is preferably formed in one piece, optionally with the exception of the sealing lip, which can be assigned to the folding housing as a Loseteil the folding housing. The housing is preferably made of a hard plastic, more preferably produced by the plastic injection molding process, while the sealing lip consists of a soft plastic or a rubber material. In a one-piece design of the housing and sealing lip, the housing can be manufactured, for example, in a two-component injection molding process.

In addition, the invention relates to a cover nut for an electrical conductor connection, wherein the cover nut formed in cross-section opposite to a screw-in closed and a lower support surface which is perpendicular to a Aufsetzrichtung formed.

Cover nuts of the type in question are known. These serve in particular in the course of producing an electrical connection between two electrical conductors, more particularly in cooperation with a screw or a bolt.

In view of the known prior art, a technical problem of the invention is seen in such a reformed a cover nut of the type in question so improved that it is electrically insulated from the outside.

The problem is solved first and foremost by the fact that the cover nut is completely surrounded by plastic, but with respect to a cross-section in the area of the screw-in opening up to a plane of the support surface. The cover nut is electrically insulated from the surrounding plastic in the use position to the outside. Preferably all in the use state outwardly facing surfaces of the cover nut are covered by the plastic. In the area of the screw-in opening for the screw bolt or the screw, the surface of the cover nut surrounding the screw-in opening can be exposed in an electrically conductive manner and is accordingly not covered by the plastic. The plastic can be applied by encapsulation of the otherwise metallic cover nut. In this regard, preference is further given to a form-locking connection between the plastic and the cover nut, so that the plastic cover is preferably non-rotatably connected in the direction of a cover nut axis in a rotationally fixed manner to the cover nut, as well as in the circumferential direction.

The plastic may be a hard plastic, preferably not elastically resilient formed accordingly. Also, the plastic surrounding the cover nut can form key surfaces, in particular for actuating the cover nut, for example, via a wrench. Thus, according to conventional nuts over the circumference six key surfaces are formed, with mutually parallel and opposite key surfaces have a distance from one another, which corresponds to a standard spanner size.

In addition, the cover nut in a cross section with respect to the support surface have a projecting beyond the support surface in the direction of insertion bead. In a connection position, the sealing bead preferably serves to seal against a facing surface of one of the conductors to be connected.

The sealing bead may be made of rubber or an elastically resilient plastic (elastomeric plastic). In addition, the sealing bead may initially be present as a separate component, for example in the form of a ring seal, which is inserted into a correspondingly formed annular groove in the region of the support surface before use of the cover nut.

In a preferred embodiment, the sealing bead in the cross section is partially covered by the surrounding surrounding the cover of the rest of the plastic. The surrounding plastic may have a corresponding groove for receiving the sealing bead. In addition, an elastically resilient sealing bead can be encapsulated by the hard plastic or further example. In the course of a two-component injection process at the same time be made with the plastic surrounding the cover nut.

The invention also relates to a sealed connection between two electrical conductors, wherein the one electrical conductor has a connecting part, with a metallic electrical conductor element that is surrounded in any case with a resiliently resilient plastic in a connection region, wherein the connection region has an opening which is penetrated by a connecting means, such as a screw or a bolt, in a direction of enforcement, wherein further on the bolt a plastic-coated cover nut is screwed, or the screw has a plastic-coated screw head.

Sealed compounds of the type in question are known.

In order to make such a connection electrically insulated from the outside and protected against penetration by moisture, according to a first idea of the invention it is provided that the plastic covering of the covering nut or the screw head is sealed against the conductor element by means of a sealing lip made of plastic or rubber and that the Connecting part of the electrical conductor element on the cover nut or the screw head facing away from a sealing lip which cooperates with the second conductor.

In a corresponding compound in which further the second conductor is penetrated by the screw or the bolt, wherein the screw or the bolt is provided on the opposite side of the conductor element of the second conductor with a cover nut for supporting the second conductor to the conductor element, is provided in that the cover nut is surrounded by plastic and has a sealing bead made of plastic or rubber, via which the cover nut is sealed relative to the second conductor, and in that the connecting part of the electrical conductor element is on the facing cover nut or on the side facing away from the facing screw head a sealing lip which cooperates with the conductor element.

With regard to the configuration of the plastic-coated connecting part or the cover and / or connecting nut, reference is made to the relevant explanations in the description. Preferably, a connecting part according to claim 10 and a cover nut according to claim 18 are used in such a sealed connection.

It is an electrically isolated and protected against moisture penetration from the outside created connection. In particular, the electrically conductive conductor element of the connecting part is sealed on both sides in the direction of enforcement.

The invention further relates to a plastic sealing sheath for a conductor connection between a first conductor and a second conductor, wherein in the connected state, the first conductor to the second conductor by means of a conductive connection resulting mandrel is connected, wherein the mandrel passes through a through-insertion region of the first conductor.

Plastic sealing sheaths of the type in question are known. These are used in particular for moisture-proof covering of an electrical connection, for example in the motor vehicle sector. Thus, in this context, such a plastic sealing sheath is known in a connection of a first conductor to a starter battery of a motor vehicle. The plastic sealing sheath covers in the use state of the connection area and is intended in particular to prevent moisture from penetrating into the conductor which has been stripped to the end for the purpose of electrical connection. The known plastic sealing sheaths are formed solely hose-like. They have a closed hose jacket.

WO 2008/006477 A1 discloses an electrical conductor with an exposed front connection region, which is covered by a copper wire with a copper sleeve pressed thereon and softened to the condensation temperature. The cross-section flat rectangular connection area is provided with a punched opening. The connection area is further covered with a plastic insulation, which forms concentric and surrounding to the punched opening on both sides sealing lips.

Based on the stated prior art, the invention has the task to provide a plastic sealing sheath, which is advantageously designed with regard to a conductor connection. A possible solution to the problem is given according to a first inventive idea in a plastic sealing sheath, which is geared to that over the first conductor überstreifbare sealing sheath at its the insertion region of the first conductor associated end a transversely to an enforcement fully enclosed receiving area for the The passage opening in the enforcement direction has a first and a second opening edge and at least at the second opening edge has a closed circumferential sealing lip and that the sealing sleeve at its end facing away from the connecting portion for sealing engagement with the first Ladder is formed.

The sealing sleeve can be applied to a conductor at any time by gluing. It is not necessary to insert the electrical conductor into a plastic injection molding tool or the like in order to make an encapsulation. The application of the insulating sealing sleeve can also be done on site during the actual installation of the conductor.

The end of the first conductor, which is generally stripped off for the purpose of electrical connection, can be completely surrounded by the proposed sealing envelope, with the exception of a region which has the passage opening for producing the electrical connection. The shell-side receiving region can in this case surround the region of the first conductor which has the passage opening of the first conductor, if appropriate, as well as preferably, for completely enclosing the same. In cooperation with the circumferential sealing lip, which surrounds the passage opening in particular the second opening edge, a secure seal against ingress of moisture from the outside into the electrical conductor can be achieved. The sealing lip is preferably only in the course of a conventional determination of the first conductor to the second conductor using the mandrel to effect. In the area of the further (first) opening edge of the passage opening, a separate seal can be provided. For example, this opening edge may be overlapped like a lid. Such a cover, for example. Hinged lid, is preferably brought into a position sealing the conductor connection to the sealing casing.

In addition, the region of the further, in particular the first opening edge, can otherwise be sealed off separately, for example by spraying the opening with an electrically insulating compound, for example further with a grease or an adhesive, in particular hotmelt adhesive or 2-component adhesive.

In any case, as also preferred, a bilaterally encapsulated region may be present.

This can be achieved in a further possible embodiment by forming two, each associated with an opening edge, peripherally closed sealing lips. The sealing sheath can be designed so that it can be mounted after the establishment of the electrical connection between the first and second conductor and can also be correspondingly preferably disassembled without destroying it.

A further sealing area is provided in the end area of the sealing envelope facing away from the connecting area, which also cooperates with the first conductor. This sealing interaction is preferably independent of an electrical connection of the first conductor to the second conductor, for example according to a screw connection. The sealing sheath is preferably made of an elastic, resilient material, such as in particular a thermoplastic material or rubber, further, for example, silicone rubber. More preferably, the sealing sheath or the material used for this purpose may have a modulus of elasticity which is less than 5 kN / mm ² , more preferably less than 3.3 kN / mm ² .

For sealing engagement with the first conductor at the end facing away from the connection region, the latter can have a tapering section. Starting from the connection region or starting at a distance from this, for example, it may be conically tapered, with an end-side smallest diameter which is equal to or smaller than the diameter of the first conductor in the contact region of the tapering section.

Also, this end of the sealing sheath, for example, be covered by a shrink tube, which also extends over the associated portion of the first conductor and thus provides a seal between the first conductor and sealing sheath.

In addition, the sealing in this area can also be achieved by means of a cable gland with a PG thread (so-called PG thread gland), alternatively by a clamping ring in the manner of a hose clamp, which is pulled over the end area of the sealing gland. Furthermore, it is possible in this regard to insert a sealing ring, for example an O-ring, or a stuffing box end-to-end between the sealing casing and the first conductor.

Also, in a longitudinal direction of the sealing sheath or of the first conductor when the sealing sheath is applied, the upper and / or lower sealing lip can be seen in a front view, in any case in its middle region, from one Be contoured over the adjoining the sealing lips area. This adjoining area can be adapted to the configuration of the same formed in the corresponding area of the first conductor. For example, the receiving area with the sealing lips may extend in a plane-offset manner to a plane running parallel to the first conductor and passing essentially centrally through it.

The region projecting beyond the sealing lip may in this case have a height which exceeds the sealing lip and is considered in the direction of penetration, which corresponds to a multiple, for example 5 to 50 times, for example 10 to 30 times the free sealing lip height. The free sealing lip height is in this case preferably measured from a plane in which the sealing lip in the receiving area circumferentially passes to - with respect to a vertical section through the sealing lip - to the free end of the sealing lip, for example, to the zenith of the same.

In the non-mounted state of the sealing sleeve, it may have an opening in the region of the tapering section, this opening having a diameter dimension which is smaller in each direction than a largest dimension of the first conductor in the push-through section. The largest dimension of the first conductor in the push-through section may correspond to a multiple, in particular a 1.2 to 2 times, for example, 1.5 times the opening diameter dimension in the taper section of the sealing sleeve.

Preferably, the sealing sheath is applied to the end of the first conductor to be sealed in such a way that initially the push-through section of the first conductor is guided through the opening in the region of the optionally provided narrowing section of the sealing sheath. Due to the elastically resilient design of the entire sealing envelope, a given if intended tapering section widening in the course of putting the sealing sheath on the first conductor in the course of enforcement of the push-through through the tapering section, according to Hiernach according to provision to be able to cooperate sealingly with the corresponding portion of the first conductor. This results in an automatic system of the edge surrounding the opening to the associated region of the first conductor.

The sealing sheath can have a length which corresponds to 2 or more times, preferably up to 10 times the free diameter of an insertion opening of the first conductor. The insertion opening of the first conductor is exposed with plugged sealing sheath, surrounded by the receiving area, for electrical connection in the region of the shell-side through hole. About the insertion opening by means of the mandrel, the electrical connection with the second conductor can be brought.

The shell-side through-opening may have a diameter dimension which corresponds to a multiple of the diameter dimension of the conductor-side insertion opening. Thus, the dimension of the shell-side passage opening may correspond to 2 to 5 times the diameter dimension of the conductor-side insertion opening.

In any case, associated with the receiving area, the sealing casing may have the outer contour of a cable lug. Preferably, the electrical conductor is provided on the end with a cable lug, in particular with a lug made of a pipe part. This cable lug establishes an electrical connection to the electrically conductive wires of the first conductor which are enveloped by an insulation. The connection between the cable lug and the wires of the electrical conductor is produced, for example, as a result of crimping or crimping. In a preferred embodiment, the sealing envelope takes on the overall outer contour of the cable lug of the first conductor.

Preferably, the sealing sheath is designed such that it lies on the inside of the sheath at least for the most part against the associated surface of the cable lug and / or the insulating sheathing of the electrical conductor. Also, in the connection state, the sealing sheath transverse to its longitudinal extent, the first conductor partially surrounded by a distance, such as in the field of cable crimping or -vercrimpung. Here, with respect to a longitudinal axis of the first conductor, a Radialabstandsmaß between the sealing envelope and the cable lug of 1 to 10 mm result.

The first conductor has an insulating sheath. In the connection state of the tapering portion of the sealing sheath or surrounding the relevant opening, lip-like edge sealingly cooperates with an outer surface of the shell. By shortening the tapering section, the resulting opening in the region of the tapering section can be adapted to the outside diameter of the casing in the region of the narrowing section so that adequate sealing in the connection state can be achieved even in the case of different cross sectional dimension of the first conductor in the area of the casing. This can be achieved by a preferred conical design of the tapering section. The sealing lip may have a free height of 0.5 to 3mm and a thickness across the piercing direction of 0.5 to 3mm.

The sealing lip can also pass radially inward directly into the passage opening of the sealing jacket-side receiving region. In a further embodiment, the sealing lip can pass in a cross-section in a planar area. This planar area extends on the outer side of the sealing sleeve, facing away from the first conductor or the cable lug, and starting from the sealing lip, at least in a generally radially outward direction and / or in the longitudinal direction of the sealing sheath.

The planar area may extend beyond the sealing lip at least by the amount of the thickness of the sealing lip up to a ten-fold or more, up to a 50-times the thickness of the sealing lip elevation and / or recess.

With regard to the disclosure, the ranges and ranges of values or multiple ranges given above and below also include all intermediate values, in particular in 1/10 increments of the respective dimension, if appropriate also without dimensions. For example, the specification 0.5 to 3 mm also includes the disclosure of 0.6 to 3 mm, 0.5 to 2.9 mm, 0.6 to 2.9 mm, 0.9 to 1.8 mm, etc., the disclosure 2 or more also the disclosure 2,1- or multiple, 2,2 or multiple etc. This disclosure can on the one hand to delimit a said area boundary from below

and / or above, alternatively or additionally, for the disclosure of one or more singular values from a respective specified range.

The invention is explained below with reference to the accompanying drawing, which illustrates only exemplary embodiments. A part that is explained only with reference to one of the embodiments and is not replaced in another embodiment due to the special feature there is not replaced by another part, is thus described for this further embodiment as any possible existing part. On the drawing shows: 1 shows a first conductor in a perspective view;

FIG. 2 a perspective view of a plastic sealing sheath for arrangement on the first conductor; FIG.

Fig. 3 is a plan view of the sealing sheath;

Fig. 4 is a side view thereof; Fig. 5 is the bottom view against the sealing sheath;

6 shows the sealing casing in a rear view with a view of a connection region; Fig. 7 is the front view of the sealing sheath;

8 is a perspective view of the connection state of the sealing jacket and the first conductor; 9 shows the plan view for this purpose;

10 shows the section along the line X-X in Figure 9;

FIG. 11 shows the enlargement of the area XI in FIG. 10 concerning the electrical connection state between the first conductor and a second conductor; FIG.

FIG. 12 shows the section according to FIG. 10 concerning a second embodiment; FIG. Fig. 13 in plan view a connecting part in one embodiment;

FIG. 14 shows the section according to the line XIV-XIV in FIG. 13; FIG. 15 shows a sectional view according to FIG. 14, relating to an embodiment with a plastic-encased cover nut;

Fig. 16 is a representation corresponding to FIG. 15 with an alternative

covering nut;

17 shows the section according to the line XVII-XVII in Fig. 16 .;

FIG. 18 shows a side view against the connecting part according to FIG. 16; FIG. FIG. 19 is a plan view of a connecting part in a further embodiment; FIG.

FIG. 20 shows the section according to the line XX-XX in FIG. 19; FIG.

Fig. 21 is a further sectional view of FIG. 15, a sealed

Concerning connection position;

FIG. 22 shows the enlarged area XXII in FIG. 12, relating to an alternative

embodiment; FIG. 23 shows the enlarged area XXIII in FIG. 12, relating to a further embodiment;

FIG. 23a shows a representation corresponding to FIG. 23, relating to a further embodiment; a longitudinal sectional view through a connection area, concerning a further embodiment; a representation corresponding to Figure 24, relating to a further embodiment; a section through a connection region in a further embodiment, concerning an electrical tab connector, which is surrounded by a housing with seals; a sectional view corresponding to Figure 26, relating to a further embodiment; a housing as a folding housing in perspective view; the cross section through a housing, concerning an alternative embodiment.

Shown and described, first with reference to FIG. 1, is a first electrical conductor 1, which essentially consists of a cable 4 and a cable lug 5.

The cable 4 has a sheath 2 for electrically conductive wires 3. The cross section of the cable 4 is preferably circular.

The freed from the sheath 2 free end of the cable 4 is connected to the cable lug 5. For this purpose, the wires 3 engage in a tubular crimping section 6 of the cable lug 5. In this section is to provide the electrical conductivity, as well as the determination of the cable lug 5, a Compression provided. The corresponding Verpressbereich 7 is in the

Sectional view can be seen in Figure 10.

Facing away from the cable 4, the cable lug 5 is formed into a flat push-through region 8. This has an at least approximately square ground plan. The push-through region 8 is formed as a result of deformation from the original tubular shape to form the cable lug 5.

The push-through region 8 extends in a plane which extends offset to a parallel plane, which passes through the cable 4 and the crimping section 6 in the middle. It may thus result in a step portion 9 rising obliquely at an angle of approximately 45 ° between the push-through region 8 and the crimping section 6. The angle here refers to a perpendicular to the push-through area 8.

Furthermore, the push-through region 8 is provided with a preferably circular through-insertion opening 10 in the plan view. This passes through the push-through region 8 in the region of its broad side surfaces, with a diameter d which corresponds approximately to half of a largest dimension a of the push-through region 8.

The first conductor 1 can be assigned to a second electrical conductor 11. The conductive connection results via an electrically conductive mandrel 12, for example by a screw, as also shown, which mandrel 12 engages through the through-opening 10 of the first conductor 1.

In particular, for sealing the free end of the first conductor 1 against moisture penetrating from the outside in the use position, the first conductor 1, a plastic sealing sheath 13 can be assigned. The sealing sheath 13 is designed to slip over the free, the cable lug 5 having the end of the first conductor 1, this is preferably made of an elastically resilient material, in particular plastic material. The sealing sheath 13 is initially and substantially hose-like, with a tubular cylindrical portion 22 which merges endwise in a tapered portion 14 according to the first embodiment shown in Figures 2 to 12, and a substantially flat receiving area 15. Further, the sealing sheath 13 in Essentially adapted to the external contour of the cable lug 5. For this purpose, the receiving region 15 preferably has an at least approximately square plan, adapted to the push-through region 8 of the cable lug 5. Also, a step-like transition (step section 16) is provided which connects the receiving region 15 with the cylinder section 22. The receiving region 15 extends in a plane which is offset from a parallel plane which passes through the cylinder section 22 in the center.

The receiving area 15 is designed to be in the connected state, i. when pushed onto the cable lug 5 state, the push-through area 8 almost completely surrounds, this in particular with respect to the free edges and the through-hole 10 surrounding surface areas of the broad side surfaces. The cable shoe-side step portion 9 and its crimping portion 6 are completely enclosed by the shell-side step portion 16 and the cylinder portion 22.

The broad side surfaces of the receiving area 15 are pierced by passage openings 17 whose free diameter d 'corresponds approximately to twice the diameter d of the through opening 10. In the connection state, the passage openings 17 of the receiving region 15 are preferably aligned at least approximately concentrically with the insertion opening 10 of the cable lug 5. The passage opening 17 is encompassed by a circumferential sealing lip 18 on each broad side surface. Radially inside, the sealing lip 18 preferably passes directly into the passage opening 17.

Each sealing lip 18 may have a free height h - starting from the facing surface of the receiving area 15 and in the through-direction r - of about 1.5 to 2 mm. The radial thickness c of each sealing lip 18 may be about 2 to 3 mm.

In addition, the sealing lip-with reference to a cross-section (for example, shown in FIG. 10) -can pass into a planar area. This planar area may be the adjoining connecting area, which extends at least over a length which corresponds at least to 5 or 10 times the sealing lip thickness c, without elevation and / or recessing.

The taper portion 14 tapers conically toward its free end and forms an opening 19 at the end. This is penetrated in the connection state of the cable 4. The opening 19 has a diameter dimension b, which is chosen smaller than the largest dimension a in Durchsteckbereich 8 of the cable lug fifth

Furthermore, the opening 19 is adapted or adaptable to the outer diameter of the cable sheathing 2. After shortening the tapering section 14 along a longitudinal axis x of the cylinder sheath Section 22, the opening 19 is expandable with respect to its diameter and thus adaptable to the jacket diameter.

The sealing casing 13 has a length e, which is considered in the extension direction of the axis x, and which may correspond to approximately 8 to 10 times the diameter d of the through-opening 10.

The sealing sheath 13 is pushed for shipment in the state of connection with the first conductor 1 with its opening 19 via the cable lug 15 - with corresponding expansion against the elastic restoring force of the tapering portion 14 - to a position in which the cable shoe-side push-through 8 preferably comes to rest in the receiving area 15 of the sealing casing 13. The shell-side cylinder section 22 here comprises the crimp section 6, this partially leaving a radial distance to the crimp section 6 (see FIG. 10).

The free end of the tapering portion 14 is circumferentially lip-like on the surface of the cable sheath 2 sealingly. The push-through region 8 of the first conductor 1 is exposed for electrical connection to the second conductor 11 in the passage opening 17 of the receiving region 15.

The first conductor 1 provided with the sealing sheath 13 is assigned to the second conductor 11 such that the mandrel 12, for example in the form of a threaded mandrel of a screw, optionally with the interposition of a disk 20 or the like, passes through the through-openings 17 and the through-opening 10 of the cable lug 5 is guided in the push-through direction r, in this case if necessary, a further opening 21 in the second conductor 11 enforcing or entering into this with screw connection. The sealing lips 18 are thereafter annularly sealingly against the facing surfaces of the second conductor 11 and the first conductor 1, optionally on a screw head or on the disc 20 at. On the inside, ie facing away from the sealing lips 18, the receiving area 15 of the sealing casing 13, which encompasses the push-through area 8, is braced against the facing surface of the push-through area 8.

As shown in FIG. 22, a further sealing lip 49 may optionally be formed coaxially with the sealing lip 18 and surrounding it on the outside. In a preferred embodiment, this sealing lip 49 is integrally formed and integrally formed with the sealing sheath 13.

The sealing lip 49 may be formed extending beyond the support plane of the sealing lip 18, alternatively ending flush with the support plane or be set back relative to this plane.

In addition, the sealing lip 49, as shown, may be provided only associated with an opening area of the insertion opening 10. Also a two-sided arrangement is possible in this regard.

It is thus achieved a seal of the electrical connection region between the first conductor 1 and the second conductor 11 to the outside. The electrical connection area is covered completely and sealingly.

The plastic sealing sheath 13 is reusable after loosening the electrical connection and reintroducing the same.

In the connection state, the longitudinal extension axis x of the sealing sheath 13 preferably extends in the direction of receiving the longitudinal axis of the cable 4. The in Through direction r extending centrally between the sealing lips 18 extending plane of the receiving area 15 as well as the push-through 8 of the cable lug 5 extends in the direction of Durchsteckrichtung r offset distance to the longitudinal axis x passing through parallel plane.

The longitudinal extension axis x can also extend in extension thereof through the receiving region 15, possibly penetrating the above-described center plane (cf. FIG. 12). In a further embodiment, as shown in FIG. 23, the transition between the tapering section 14 of the sealing sleeve 13 and the casing 2 (finally) can be sealed by additional means. Thus, a heat-shrinkable tube 50 may be provided, which sealingly engages sealingly on the tapering section 14 and the adjoining section of the jacket 2 on the circumferential side. Such a shrink tube 50 consists for example of polyethylene or polypropylene.

Alternatively or in combination with this, the enveloping space 51 which arises between the sealing envelope 13 and the sheath 2 can also be filled with an injectable mass, for example with a grease or with an adhesive, for example hotmelt adhesive or at least in the contact area of the tapering section 14 on the sheathing 2. component adhesive.

Also, as shown in Figure 23a facing away from the connection region and the sheath 2 of the first conductor 1 comprehensive end portion of the sealing sheath 13 may be substantially rectilinear, at least approximately coaxial with the sheath 2. The sealing in this area can optionally be provided solely by a heat-shrinkable tube 50 which comprises the end of the sealing envelope 13 and the subsequent section of the jacket 2. Figures 13 and 14 show in one embodiment, a connecting part 23 for electrical connection between two electrical conductors 1 and 11. The connecting part 23 has a metallic electrical conductor element 24 which is electrically connected to a terminal portion 25 of the first conductor 1, for example Follow a soldering.

Furthermore, the conductor element 24 has an opening 26 in a connection region A. This passes through the conductor element 24 transversely to its surface extension.

The conductor element 24 is electrically connected in a first region 27 to the connection section 25. Starting from the connection section 25, this first region 27 extends, with reference to a vertical section according to FIG. 14, substantially perpendicular to the through-insertion direction r of a connection means 28 to be guided through the opening 26, for example a screw or screw

Bolts. In the connection region A, the conductor element 24 merges into a second region 29, which is formed with respect to the push-through direction r at a second height level with respect to the first region 27. Thus, the second region 29 in the direction of penetration r is lowered relative to the first region 27, resulting in a total of a rotationally symmetrical cup-shaped depression 30 in the connection region A. The difference in level between the first region 27 and the second region 29 considered in the direction of penetration r corresponds approximately to 2 to 3 times the material thickness of the conductor element 24.

The inner diameter of the depression 30 corresponds approximately to the 1.5 to

2.5 times the diameter of the hole-like opening 26. The reduction 30 can be made for example by deep drawing of the relevant conductor element area. Alternatively, a flat staggered portion for forming the recess 30 may be welded or glued to the correspondingly cut-out region of the conductor element 24, and may alternatively be screwed to the conductor element.

The connecting part 23 is surrounded by an elastically resilient plastic. The resulting plastic envelope 31 is preferably achieved by encapsulation of the conductor element 24 including the connection portion 25 of the first conductor 1. The plastic cladding 31 is designed so that it preferably includes the end of the sheath 2 of the first conductor 1, as well as the adjoining connecting portion 25th

The conductor element 24 is covered with respect to its flat sides on top and bottom side and laterally of the plastic sheath 31 with the exception of areas in the connection area A.

In this connection region, the lower surface of the pot base facing a second conductor 11 for electrical contacting of the second conductor is not covered by plastic, as more preferably the surface of the pot bottom 32 remote from the second conductor 11 and the circumferential inner surface of the pot wall 33.

Concentric to the opening 26 is circumferentially both pot opening side of the Ab- reduction 30 and on the opposite surface formed from the plastic sheath 31 sealing lip 34, 35 is formed. This is formed in the form of a circumferential, over the surrounding surface of the plastic sheath 31 in or opposite through-direction r projecting sealing bead. As shown in FIGS. 13 and 14, the sealing lip 34 provided on the pot opening side may serve to cooperate with a surface of a connecting means 28 inserted through the opening. In the illustration, a hexagonal screw is provided, which sealingly engages the sealing lip 34 with a flat side of the screw head aligned transversely to the through-insertion direction r. The threaded portion of the connecting means 28 passes through the opening 26 while a larger diameter relative to the threaded portion collar portion 36 is inserted into the space in the lowering of the conductor element 24 filling space. In this case, the collar portion 36 can be conductively connected to the pot bottom 32 and the inside of the pot inner wall 33.

The further sealing lip acts in a connection position sealingly against the facing surface of the second conductor 11, whereby the connection area A is protected against the ingress of moisture from the outside.

FIGS. 15 to 21 show further embodiments and application examples based on a connecting part 23 according to the exemplary embodiment in FIGS. 13 and 14.

Thus, as shown in Figure 15, a bolt 37 pass through the opening 26, which is screw-connected to the pot opening side of the lowering with a cover nut 38. The cover nut 38 is preferably a metal cap nut.

The cover nut 38 is covered in the area of your key surfaces and the hat portion of a plastic 39, in particular hard plastic. This results in an almost complete overlap of the cover nut 38 with plastic 39 up to the opening 26 facing support surface 40 of the cover nut 38. The in the direction of insertion, ie in the direction of insertion r facing Face of the surrounding plastic 39 preferably extends together with the support surface 40 on a common plane.

Outside of the wall plastic 39 forms with respect to a screw axis in radial overlap to the key surfaces of the cover nut 38 key surfaces 31, for example. For actuating the plastic covered cover nut 38 with a wrench or the like.

The cover nut 38 is supported by its bearing surface 40, possibly with the same end face of the plastic 39, sealingly against the sealing lip 34 of the connecting part 23 facing it.

In the depression 30 of the conductor element 24, as shown, an annular insert 42 may be used, which is loaded on the pot bottom 32 supportive of the cover nut 38 in the direction of insertion r.

FIGS. 16 to 17 show an embodiment in which the metallic cover nut 38, receiving the threaded bolt 37, extends as far as the bottom of the pot bottom 32. An investment in the sealing lip 34 is achieved in this embodiment alone according to the plant of the capping 38 surrounding plastic 39th

Also in this embodiment, the plastic 39 is provided on the outside wall with key surfaces 41. As a result of encapsulation of the nut-side key surfaces, the hardened plastic 39 is connected in a rotationally fixed manner to the capping nut 38. A trigger safety can be achieved, according to engagement of a radially inwardly projecting plastic rib in a circumferential annular groove 43 of the cover nut 38 (see FIG. 16). The pot opening facing the depression 30 may be formed integrally with the plastic sheath 31 in one piece around the pot and around the circumference of the latter. Its free inner diameter preferably corresponds to that of the cup-shaped depression 30.

In the region of the free end of the collar 44 is provided with a radially outwardly facing circumferential locking lip 45.

The collar 44 with its locking lip 45 serves to fix a closure cap 46. This is connected via a bendable, band-like extension 47 to the plastic envelope 31, wherein the extension 47 as shown in Fig. 20 on the connection portion 25 opposite area of the connection area A extends. Plastic envelope 31, extension 47 and closure cap 46 can, as well as preferred, be designed in one piece and in the same material.

In the lowering, a screw head of a connecting means 28, for example. Screw, einliegen, whose threaded portion passes through the opening 26. The screw head is optionally supported directly on the bottom of the pot 32 and is completely absorbed in the depression 30.

As a result of pivoting the closure cap 46 over the extension 47, the closure cap 46 can be brought into a position covering the opening of the depression 30, into which a latching of the closure cap 46 with the latching lip 45 can be performed. As a result, the region of the depression 30 in the connection region A is sealingly covered.

The second conductor 11 is penetrated by the threaded portion of the screw and sealingly against the sealing lip 35 of the connecting part 23rd The screw fixing the second conductor 11 to the first conductor 1 and to the conductor element 24 of the connecting part 23 is produced by a cover nut 38. The cover nut 38 is essentially comprised of plastic 39 according to the embodiments in FIGS. 15 to 18. Again, the plastic 39 has key surfaces 41.

In the region of the support surface 40 of the cover nut 38 and the plastic 39, a sealing bead 48 is provided. This is preferably a sealing bead 48 made of an elastically resilient material, such as rubber.

The sealing bead 48 is partially covered with respect to a cross section according to FIG. 20 by the plastic surrounding the cover nut 38, protruding freely beyond the bearing surface 40 in the unloaded position with a partial region.

In the illustrated connection position is sealed via the sealing bead 48 on the one hand and on the acting against the second conductor sealing lip 35 of the connecting part 23 and beyond after covering the depression 30 through the cap 46 of the connection area A against moisture from the outside.

FIG. 21 shows a sealed connection between two conductors 1 and 11 using a previously described connection part 23 and a plastic-encased cover nut 38 according to the embodiment in FIG. 15, wherein the second conductor 11 is pressed against the conductor element 24 by a cover nut 38 according to the embodiment in FIG first conductor 1 is braced.

There are three sealing levels in this connection position, on the one hand by the sealing lip 34 acting on the bearing surface 40 of the one cover nut 38, and on the other by the cooperation of the second conductor 11. de sealing lip 35 and by cooperating also with the second conductor sealing bead 48 of the other cover nut 38. In addition, both cover nuts 38 are surrounded by plastic 39. According to the illustrations in FIGS. 24 and 25, sealing lips 52 acting radially in the radial direction may be provided on the upper and lower sides, optionally in addition to the sealing lips 18 acting in the axial direction, for example for sealing cooperation with a conically tapering pole 53 of a battery, which pole 53 second conductor 11 forms.

Also, the sealing sheath 13 may be provided axially on one side with a cover 54, which covers the pole 53, for example.

FIGS. 26 and 27 each show a plug arrangement consisting of a flat plug 55 forming the second conductor 11 and a blade receptacle 56 forming the first conductor 1. The blade receptacle 56 may, as shown in FIG. 26, be provided with a sealing sleeve 57 surrounding it.

In order to protect such a connector, in particular against penetrating moisture, a housing 58 may be provided. This surrounds the plug-in area.

The housing 58 is provided with at least one sealing lip 59. In the illustrated embodiments, two sealing lips 59 are formed, one of which seals directly against the first conductor 1 as shown in Figure 27 or against the sealing sleeve 57 of the first conductor 1 as shown in Figure 26. The further sealing lip 59 seals, for example, against a base 60 bearing the tab 55. With respect to the extension direction of the connector, the sealing lips 59 act substantially radially inward.

Additionally or alternatively, in particular to the radially acting sealing lip 59 in the region of the base 60, an axially acting sealing lip 61 can also be provided (see dot-dashed representation in FIG. 27).

The housing 58 may be present as a hinged or plug housing. FIGS. 28 and 29 each show a folding housing.

There are two housing halves 62 and 63, which are hinged together via a hinge 64. In a preferred one-piece embodiment of the housing 58, the hinge 64 is formed for example in the form of a film hinge.

In the aligned transversely to the parting plane walls of the housing 58 each openings 65 are provided, in the region of the sealing lip 59 is positioned. The sealing lip 59 may be integrally formed on the housing 58, for example when manufacturing the housing 58 in a two-component injection molding process (see FIGS. 26 and 27).

Alternatively, the sealing lip 59 can also be assigned as a Loseteil the housing 58, for example in the form of an O-ring (see Figure 28).

Also, the sealing lip 59 with respect to a cross section according to Figure 29 may be a substantially open O-ring seal, which complements in the closed position of the housing 58 to a circumferentially closed seal. Such Sealing lip 59 may have overlapping portions 66, for example, in the region of facing free ends.

The housing 58 provided with the molded-on sealing lip 59 or with an inserted sealing lip 59 which is open in the circumferential direction is guided around the electrical plug-in connection and finally moved around the hinge 64 into a closed position by flaps of the housing halves 62 and 63, in which closed position the sealing lips 59 sealingly against the first conductor 1 and / or the second conductor 11 occur.

The housing closed position is preferably secured, for example, latched. For this purpose, a latching hook 67 can be provided on the outside of the housing, which engages in the closed position behind a latching cam 68 of the other housing half.

Also, the embodiments described above for sealing an electrical connection may have such a housing, in particular hinged or plug housing.

LIST OF REFERENCE NUMBERS

1 first conductor 25 connection section 49 sealing lip

2 sheath 26 opening 50 shrink also

3 wire 27 First range 51 envelope space

4 cable 28 connecting means 52 sealing lip

5 cable lug 29 second area 53 pol

6 Crimp section 30 Lowering 54 Cover

7 Pressing area 31 Plastic coating 55 Flat plug

8 Push-through area 32 Pot bottom 56 Blade receptacle

9 Step section 33 Pot wall 57 Sealing sleeve

10 Through opening 34 Sealing lip 58 Housing

11 second conductor 35 sealing lip 59 sealing lip

12 mandrel 36 collar section 60 pedestal

13 Plastic sealing sleeve 37 Bolt 61 Sealing lip

14 Rejuvenation section 38 Cover nut 62 Housing half

15 Receiving area 39 Plastic 63 Housing half

16 step section 40 support surface 64 hinge

17 Through opening 41 Key surface 65 Opening

18 Sealing lip 42 Insert 66 Overlap section

19 opening 43 annular groove 67 latching hook

20 disc 44 collar 68 locking cams

21 opening 45 locking lip

22 cylinder section 46 cap

23 connecting part 47 extension

24 conductor element 48 sealing bead a dimension

b diameter

c thickness

d diameter

cT diameter

e length

h height

r push-through direction x longitudinal extension axis

A connection area

Claims

1. connecting part (23) for electrical connection between two electrical conductors (1, 11) with a metallic electrical conductor element (24) which is in any case in a connection area (A) surrounded with a resiliently resilient plastic and a connection area (A ) forms surrounding sealing lip (34, 35), wherein the connection region (A) has an opening (26) which is enforceable by a connecting means (28), such as a screw or a bolt in a Durchsteckrichtung (r), characterized in that the conductor element (24) has a first region (27) at a first height level in a cross section in which the push-through direction (r) appears as a line, and a second region (29) at a second height level, wherein the first region (27) is further away from the opening (26) than the second region (29), the first region (27) of the second region (29) in the Durchsteckrichtung (r) is upstream and the sealing lip (34, 35) is formed surrounding the second region (29), wherein at the region (27) at the first height level further away from the opening (26) still formed on one or more further height levels terminal portion (25) can connect, and that the sealing lip (34, 35) in the through-hole (r) in the undeformed state on the pelts ppt-side exposed second portion of the conductor element (24) protrudes, but by deformation is zurückdrängbar to a plane which the underside of the second area.

2. Connecting part according to claim 1, characterized in that the connecting part (23) in a cross-sectional view of two circumferential sealing lips (34, 35) which are formed opposite with respect to the through-direction (r).

3. Connecting part according to one of the preceding claims, characterized in that the closure cap (46) via a bendable extension (47) is formed integrally with the plastic sheath (31).

Connecting part according to one of the preceding claims, characterized in that the sealing lip is part of an attachable to the conductor element folding or plug housing (58).

Cover nut (38) for an electrical conductor connection, wherein the cover nut (38) is formed closed in cross-section opposite to a screw-in opening and a lower support surface (4) which is perpendicular to a Aufsitzrichtung formed, characterized in that the cover nut (38) completely surrounded by plastic (39), based on a cross section in the region of the screw-in, but only up to a plane of the support surface (40).

Cover nut according to claim 5, characterized in that the plastic (39) forms key surfaces (41) for actuating the cover nut (38) via a wrench.

Cover nut according to claim 5, characterized in that the cover nut (38) in a cross-section with respect to the support surface (40), over the support surface (40) in the direction of protruding sealing bead (48).

Sealed connection between two electrical conductors (1, 11), wherein the one electrical conductor (1) has a connecting part (23), with a metallic electrical conductor element (24) which surrounds in any case in a connection region (A) with a resiliently resilient plastic is, wherein the connection region (A) has an opening (26), the from a connecting means (28), such as a screw or a

Bolt, in a Durchsteckrichtung (r) is penetrated, wherein further on the screw a plastic-coated cover nut (38) is screwed or the screw has a plastic-coated screw head, characterized in that the Kunststoffummante- ment of the cover nut (38) or the screw head is sealed by a sealing lip (34, 35) made of plastic or rubber with respect to the conductor element (24) and that the connecting part (23) of the conductor element (24) has a sealing lip (35) on the side facing away from the covering nut (38) or the screw head having, which cooperates with the second conductor (11).

Sealed connection between two electrical conductors (1, 11), wherein the one electrical conductor (1) has a connecting part (23), with a metallic electrically conductive element (24), which in any case in one

Connection area (A) is surrounded with a resiliently resilient plastic, wherein the connection area (A) has an opening (26) which is penetrated by a screw or a bolt in a through-hole (r), wherein further on the bolt a plastic sheathed cover nut ( 38) is screwed or the screw has a plastic-coated screw head and the second conductor (11) of the screw (28) or the bolt is penetrated, wherein the screw (28) or the bolt on the conductor element (24) opposite sides of the conductor with a further cover nut (38) for holding the second conductor (11) on the conductor element (24) is provided, characterized in that the further cover nut (38) with plastic (39) is surrounded and a sealing bead made of plastic or rubber (48 ), over which the further cover nut (38) is sealed relative to the second conductor (11) and that the verb indung part (23) of the electrical conductor element (24) on the the facing cover nut (38) or on the side facing away from the facing screw head has a sealing lip (35) which cooperates with the second conductor (11). 10. housing (58) for sealing an electrical connection between two electrical conductors (1, 11), characterized in that the housing (58) is designed as a folding or plug housing and an integrally formed or inserted sealing lip (59) such that in the state of the housing (58) applied to a conductor (1, 11), the sealing lip (59) projects beyond a region of the housing (58) free of sealing lips.

Housing according to claim 10, characterized in that the housing (58) when formed as a folding housing in one piece, optionally with the exception of the sealing lip (59) is formed.

A plastic sealing sheath (13) for a conductor connection between a first conductor (1) and a second conductor (11), wherein in the connected state the first conductor (1) is connected to the second conductor (11) by means of a conductive connection resulting mandrel (12) is connected, wherein the mandrel (12) passes through an insertion region (8) of the first conductor (1), characterized in that the over the first conductor (1) überstreifbare sealing sheath (13) at its the insertion region (8) of the first conductor ( 1) has a receiving area (15) for the first conductor (1) which is completely enclosed transversely to an enforcement direction (r) and a passage opening (17) in the direction of enforcement (r), the passage opening (17) being in the direction of enforcement (r) has a first and a second opening edge and at least at the second opening edge has a closed circumferential sealing lip (18) and that the sealing sheath (13) at its the connection range turned end end for sealing cooperation with the first conductor (1) is formed.

Plastic sealing sheath according to claim 12, characterized in that the passage opening (17) has sealing lips (18) at both opening edges.

Plastic sealing sheath according to claim 12, characterized in that the sealing sheath (13) has at its end facing away from the connecting region a tapering portion (14) for sealing cooperation with the first conductor (1).

Plastic sealing sheath according to claim 12 or 13, characterized in that in a longitudinal direction of the sealing sheath (13) or the first conductor (1) with applied sealing sheath (13), the upper and / or lower sealing lip in a front view at least in its central region of a Contour of the adjoining the sealing lips (18) area is surmounted.