DE102024102096A1 - Device, connector and method for shield contacting - Google Patents

Abstract

To simplify the shield contacting of a cable (500) connected or to be connected, particularly to a connector, it is proposed to arrange several blade contacts (93) concentrically around a cable insertion opening (90) and to keep them radially movable. By screwing a cable outlet element, the blade contacts (93) move radially inward, sever the overall insulation (550) of the cable (500), electrically contact its cable shield (53), and thus establish an electrical connection between the cable shield (53) and the cable outlet element.

Description

The invention is based on a device for shield contacting according to the preamble of independent claim 1.

Furthermore, the invention is based on a connector comprising the device according to claim 1.

Furthermore, the invention is based on a method for shield contacting an electrical cable, in particular for electrically connecting a cable shield of the electrical cable to an electrically conductive, in particular metallic, connector housing, by means of a device according to claim 1.

Such devices, connectors and methods are used, for example, to connect the cable shield of a cable connected or to be connected to a connector with a metallic connector housing of the connector.

State of the art

The printed matter DE 102 16 483 C1 discloses a circular connector for shielded electrical cables. The document discloses that a contact element is provided for contacting the cable shield. This contact element is arranged between an insulating pressure/clamping part and an insulating body, wherein an opening is provided in the contact element through which the cable shield can be inserted. The contact element is shaped such that a connection of the cable shield to a mating connector can be established by means of a contact part provided within the connector housing or by means of the electrically conductive outer sheath of the connector, or via both methods.

The disadvantage of this state of the art is that both the manufacture of such connectors and their operation are very complex.

Task

The object of the invention is therefore to provide a device and a method for shield contacting as well as a connector comprising such a device, which simplify the shield contacting of a cable connected or to be connected, in particular to the connector.

The problem is solved by the subject matter of the independent claims.

• - ein Verbindungselement, das eine zylindrische, in einer Kabeleinführrichtung verlaufende Kabeleinführöffnung zum Einführen und Halten eines elektrischen Kabels;
• - mehrere konzentrisch um die Kabeleinführöffnung herum angeordnete und am Verbindungselement radial zur Kabeleinführöffnung beweglich gehaltene, elektrisch leitfähige Messer- oder Dornkontakte, die einerseits jeweils eine nach Innen gerichtete Schneide - oder einen nach innen gerichteten Dorn - besitzen, und die andererseits jeweils eine nach außen gerichtete Angriffsfläche, insbesondere eine Angriffsschräge, besitzen;
• - ein elektrisch leitfähiges, insbesondere metallisches, Kabelabgangselement und
• - eine Kabelverschraubung zur Verschraubung des Kabelabgangselements gegen das Verbindungselement zur Erzeugung einer in der Kabeleinführrichtung verlaufenden Schraubkraft;

wobei das Kabelabgangselement Folgendes besitzt:

• ◯ eine zylindrische Kabelabgangsöffnung; sowie
• ◯ einen trichterförmigen Abschnitt zur Umleitung der vorgenannten Schraubkraft durch Zusammenwirken des trichterförmigen Abschnitts des Kabelabgangselements mit den Angriffsflächen, insbesondere den Angriffsschrägen, der dadurch kraftbeaufschlagt nach innen bewegbaren Messer- oder Dornkontakte zum Durchtrennen einer äußeren Gesamtisolierung des Kabels zur elektrischen Kontaktierung eines unter der Gesamtisolierung befindlichen Kabelschirms mit ihren jeweiligen Schneiden oder Dornen einerseits und zur elektrischen Kontaktierung des Kabelabgangselements mit ihren jeweiligen Angriffsflächen, insbesondere Angriffsschrägen, andererseits zur Herstellung einer elektrischen Verbindung zwischen dem Kabelschirm und dem Kabelabgangselement über die Messer- oder Dornkontakte.

A device is used for electrically contacting a cable shield and has the following:

• - a connecting element having a cylindrical cable insertion opening extending in a cable insertion direction for inserting and holding an electrical cable;
• - a plurality of electrically conductive blade or mandrel contacts arranged concentrically around the cable entry opening and held on the connecting element so as to be movable radially to the cable entry opening, each of which has an inwardly directed cutting edge - or an inwardly directed mandrel - on the one hand, and each of which has an outwardly directed engagement surface, in particular an engagement bevel, on the other hand;
• - an electrically conductive, in particular metallic, cable outlet element and
• - a cable gland for screwing the cable outlet element against the connecting element to generate a screwing force in the cable insertion direction;

where the cable outlet element has the following:

• ◯ a cylindrical cable outlet opening; and
• ◯ a funnel-shaped section for diverting the aforementioned screw force by interaction of the funnel-shaped section of the cable outlet element with the engagement surfaces, in particular the engagement bevels, of the knife or mandrel contacts which can be moved inwards under the action of force in order to sever an outer overall insulation of the cable in order to electrically contact a cable shield located beneath the overall insulation with their respective cutting edges or mandrels on the one hand and to electrically contact the cable outlet element with their respective engagement surfaces, in particular engagement bevels, on the other hand in order to establish an electrical connection between the cable shield and the cable outlet element via the knife or mandrel contacts.

A connector comprises a device of the aforementioned type, as well as a contact carrier and an electrically conductive, in particular metallic, connector housing, to which the device can be fixed, in particular screwed to its cable outlet element. This advantageously allows the connector housing to be electrically conductively connected to the cable outlet element.

1. A. Hindurchführen des Kabels in Kabeleinführrichtung durch die zylindrische Kabeleinführöffnung des Verbindungselements;
2. B. Verschrauben des Kabelabgangselements gegen das Verbindungselement zur Erzeugung einer in Kabeleinführrichtung gerichteten Schraubkraft; und
3. C. Umleiten der Schraubkraft durch Zusammenwirken des trichterförmigen Abschnitts des Kabelabgangselements mit den Angriffsschrägen der dadurch kraftbeaufschlagt nach innen bewegten Messer- oder Dornkontakte;
4. D. Durchtrennen der äußeren Gesamtisolierung; und
5. E. elektrische Kontaktierung des unter der Gesamtisolierung befindlichen Kabelschirms mit den Schneiden oder Dornen der Messer- oder Dornkontakte einerseits und gleichzeitig
6. F. elektrische Kontaktierung des Kabelabgangselements mit den Angriffsflächen, insbesondere Angriffsschrägen, andererseits, zur Herstellung einer elektrischen Verbindung zwischen dem Kabelschirm und dem Kabelabgangselement über die Messer- oder Dornkontakte.

A method is used for shield contacting the electrical cable using the aforementioned device and comprises the following steps:

1. A. Pass the cable in the cable insertion direction through the cylindrical cable insertion opening of the connecting element;
2. B. Screwing the cable outlet element against the connecting element to generate a screwing force directed in the cable insertion direction; and
3. C. Diverting the screwing force by interaction of the funnel-shaped section of the cable outlet element with the attack slopes of the knife or mandrel contacts which are thereby moved inwards under the force applied;
4. D. Cutting through the overall outer insulation; and
5. E. Electrical contacting of the cable shield located under the overall insulation with the cutting edges or mandrels of the blade or mandrel contacts on the one hand and at the same time
6. F. electrical contacting of the cable outlet element with the contact surfaces, in particular contact bevels, on the other hand, to establish an electrical connection between the cable shield and the cable outlet element via the blade or pin contacts.

Advantageous embodiments of the invention are specified in the subclaims and the following description.

The device has the particular advantage that an electrical connection of a cable shield to the cable outlet element as well as to other electrically conductive objects connected to it, e.g., the connector housing, can be carried out with extremely little effort. This advantageous aspect is further reinforced by the fact that the cable must be screwed onto a connector, for example, in order to connect the electrical cable to it. This usually involves connecting the wires of several electrical conductors contained therein to an electrical plug contact each, as well as securing the cable with strain relief and sealing it - particularly with respect to the connector housing - against moisture, dust, and possibly other environmental influences. This means that the shield contacting hardly results in any additional effort during operation compared to a conventional arrangement. This activity therefore has at least a dual function.

A further advantage is that the device, and thus also the connector that comprises this device, consists of comparatively few parts and can be manufactured with little effort.

In a preferred embodiment, the cable gland can be designed as a single piece together with the cable outlet element. A screw connection can then exist between the cable outlet element and, for example, the connector housing. The cable gland is then screwed together with the cable outlet element onto a screw thread of the connector housing to screw the cable outlet element against the connecting element.

Alternatively, the cable gland can also be designed separately from the cable outlet element. In this case, the thread in question, e.g., the thread of the connector housing, can be screwed directly to the cable gland, whereby the cable outlet element located between the cable gland and the connector housing is pressed against the connecting element.

In a preferred embodiment, the blade or mandrel contacts may be made of metal.

In a further preferred embodiment, the cable outlet element can be made of metal. This is advantageous for its manufacturing, stability, and ensures its electrical conductivity.

In a further preferred embodiment, the blade contacts are pivotably mounted on the cable outlet element. This has the advantage of particularly good power transmission, low friction, and also low wear with frequent use.

In a further preferred embodiment, the blade or pin contacts are mounted on the cable outlet element in a translationally movable manner. This has the advantage of low manufacturing costs and, furthermore, low wear with frequent use.

In a preferred embodiment, the contact carrier of the connector has two separate parts, namely a contact carrier housing and a contact insert.

• ◯ eine Steckseite und
• ◯ eine der Steckseite gegenüberliegende Anschlussseite,
• ◯ und eine umlaufende, die Steckseite und die Anschlussseite miteinander verbindende Außenwand,
• ◯ sowie einen steckseitigen Steckabschnitt
• ◯ und eine anschlussseitige Kontaktträgergehäuseöffnung.

The contact carrier housing can then have the following:

• ◯ one plug-in side and
• ◯ a connection side opposite the plug-in side,
• ◯ and a surrounding outer wall connecting the plug-in side and the connection side,
• ◯ and a plug-in section
• ◯ and a contact carrier housing opening on the connection side.

In a preferred development, the contact insert can then be inserted into the contact carrier housing through the connection-side contact carrier housing opening in the plug-in direction, consist of an electrically insulating material and have a plug-in surface facing the plug-in side in the assembled state.

Furthermore, the contact insert can have a connection surface opposite the plug-in surface and can have a plurality of contact chambers designed as through-openings running in a plug-in direction, wherein the contact chambers connect the plug-in surface to the connection surface.

In a further preferred embodiment, the contact insert can have a circumferential outer surface which connects the plug-in surface to the connection surface.

The outer surface can run in the plug-in direction and thus parallel to the contact chambers.

Each of the contact chambers may have a lateral connection opening which connects the respective contact chamber to the outer surface, so that the respective contact chamber is open towards the outer surface, wherein a metallic plug contact is arranged in each contact chamber.

In one possible embodiment, each plug contact can be designed as a single piece, e.g., as a stamped and bent part, made of deformable sheet metal and have a plug-side, e.g., rolled, plug-in area and a deformable cable connection area with an insulation displacement terminal on the cable connection side.

In another preferred embodiment, each plug contact can have at least two mechanically and electrically interconnected metallic parts, namely a first part and a second part.

The first part of the plug contact can then consist of a plug-in area located on the plug side when assembled. This could, for example, be a turned part.

The second part of the plug contact can consist of a connection area attached to the first part, e.g., to the aforementioned plug-in area, and electrically connected thereto. This connection area can consist of a deformable, in particular elastically deformable, sheet metal and can therefore itself be deformable, in particular elastically. In the assembled state, the connection area is arranged on the connection side. In particular, the connection area has an insulation displacement connector.

The connection area of the plug contact can then protrude from the outer surface of the contact insert through the connection opening when the contact insert is not inserted.

Then, when the contact insert is pushed into the contact carrier housing, the connection area can come into mechanical contact with the outer wall of the contact carrier housing and can thus be bent completely into the contact insert in order to sever the insulation of a line of an electrical cable to be connected to the connector that is inserted into the contact chamber on the connection side with its inwardly directed insulation displacement contact and to make electrical contact with an electrical wire of the line.

This has the advantage that, ideally, only a single movement in a single direction is required to connect both the individual wires to the plug contacts and, ideally, the connector housing to the cable shield at the same time. This can result in significant time and equipment savings, even with manual cable termination methods, but is also particularly advantageous for machine-based cable termination methods.

For this purpose, it is particularly advantageous if the respective connection area of the plug contacts is at least partially produced using stamping and bending technology, in particular from the said deformable sheet metal, because this represents a very cost-effective and flexible way of producing the cable connection area, which is metallic on the one hand and deformable, in particular elastically deformable, on the other hand.

In a preferred embodiment, the connector can have at least one lever pivotally mounted on the outer wall of the contact carrier housing and engaging the contact insert to facilitate the insertion of the contact insert into the contact carrier housing.

In particular, the at least one lever can have a toothed ring with which it engages the contact insert. set can also be inserted separately and conveniently into the contact carrier housing.

It is also particularly advantageous if the connector housing has a screw thread on the connection side, into or onto which the cable gland can be screwed. The cable gland can be used, among other things, to screw the cable outlet element to the connector housing by screwing it in or out.

It is particularly advantageous if the blade or mandrel contacts are pressed radially inwards - in particular pivoted - by the aforementioned screwing of the cable outlet element in order to penetrate an overall insulation of a cable sheath of the electrical cable and to electrically contact a cable shield of the cable.

In this case, the cable gland can still fulfill its usual function of securing and sealing the cable to the connector housing. In this case, as already explained, it also serves to electrically contact the connector housing.

In a preferred development, the at least one lever can be fixed in its actuated position by the cable outlet element and/or by the screw connection of the cable outlet element.

In a further preferred embodiment, the connector can be a circular connector which has a substantially cylindrical basic shape.

In a preferred further development, the contact insert can also be designed to be essentially cylindrical.

Example

• 1a - c einen Kontaktträger mit daran anzuschließenden elektrischen Leitungen eines Kabels, aufweisend ein Kontaktträgergehäuse und einen Kontakteinsatz im nicht verbundenen und im verbundenen Zustand;
• 2a, b den Kontaktträger im nicht verbundenen Zustand in einer halbtransparenten Darstellung und einer Schnittdarstellung;
• 3a, b den Kontaktträger im verbundenen Zustand in einer halbtransparenten Darstellung und einer Schnittdarstellung;
• 4a den Kontaktträger mit dem Kabel;
• 4b, c einen Steckverbinder, aufweisend den Kontaktträger und ein ihn umgebendes Steckverbindergehäuse;
• 5a - c ein Verbindungselement mit einem darin einzuführenden bzw. eingeführten elektrischen Kabel;
• 6a, b den Steckverbinder mit dem eingeführten Kabel in der Schnittdarstellung im nicht verschraubten und im verschraubten Zustand.

An embodiment of the invention is illustrated in the drawings and explained in more detail below. They show:

• 1a - c a contact carrier with electrical lines of a cable to be connected thereto, comprising a contact carrier housing and a contact insert in the unconnected and in the connected state;
• 2a , b the contact carrier in the unconnected state in a semi-transparent representation and a sectional representation;
• 3a , b the contact carrier in the connected state in a semi-transparent representation and a sectional representation;
• 4a the contact carrier with the cable;
• 4b , c a connector comprising the contact carrier and a connector housing surrounding it;
• 5a - c a connecting element with an electrical cable to be inserted or inserted therein;
• 6a , b the connector with the inserted cable in the sectional view in the unscrewed and screwed state.

Some of the figures contain simplified, schematic representations. Identical reference symbols are used for similar, but possibly not identical, elements. Different views of the same elements may be scaled differently. Directional references such as "left," "right," "top," and "bottom" are to be understood with reference to the respective figure and may vary in the individual illustrations relative to the object depicted.

The 1a - c show a contact carrier of a connector together with several electrical lines 5. The contact carrier consists of an electrically insulating material and has two separate parts, namely a contact carrier housing 1 and a substantially cylindrical contact insert 2. A lever 3 is pivotally mounted on the contact carrier housing 1.

The 1a also shows the not yet connected, separate electrical lines 5, each of which has an inner electrically conductive wire 51 (short: "electrical wire"), not further described here, which is surrounded by insulation 50. (See 2b)

The contact carrier housing 1 has a plug-in side 10 and a connection side 13 opposite the plug-in side 10, as well as a circumferential, essentially hollow-cylindrical outer wall 12 connecting the plug-in side 10 and the connection side 13. Furthermore, the contact carrier housing 1 has a plug-in section 11 on the plug-in side and a connection-side contact carrier housing opening 130.

The contact carrier housing opening 130 is designated in this illustration, because the contact insert 2 is, as in the 1b shown, is inserted through this connection-side contact carrier housing opening 130 in the plug-side direction into the contact carrier housing 1. As a result, the contact carrier housing opening 130 is optically hidden in this illustration, but in the 2b indicated and described as best as possible.

The contact insert 2 has a in - in the 1c shown - assembled state of this arrangement facing the plug-in side 10, in the 2b designated plug-in surface 21 (see also Fig. 2b) and a connection surface 23 opposite the plug-in surface 21. In addition, the contact insert 2 has several, in the 1a designated contact chambers 20, designed as through-openings, which connect the plug-in surface 21 to the connection surface 23. An electrical line 5 is inserted into each of these contact chambers 20 on the connection side (i.e., coming from the right in the drawing) or is already arranged therein. Furthermore, the contact insert 2 has a circumferential outer surface 22, which connects the plug-in surface 21 to the connection surface 23 and runs in the plug-in direction and thus parallel to the contact chambers 20. Each of the contact chambers 20 has a lateral connection opening 24, which connects the respective contact chamber 20 to the outer surface 22, so that the respective contact chamber 20 is open towards the outer surface 22.

A plug contact 4 is at least partially arranged in each contact chamber 20. Each plug contact 4 is designed in two parts. It has two metallic parts that are mechanically and electrically firmly connected to one another, namely a first part 41 arranged on the plug side and a second part 42 arranged on the connection side. The first part of the plug contact 4 is a plug-in area 41. The second part of the plug contact is a connection area 42. This connection area 42 is fastened to the plug-in area 41—e.g., by rivets—and is thus also electrically connected to the plug-in area 41. The connection area 42 consists of deformable, in particular elastically deformable, sheet metal. The connection area 42 is preferably a stamped and bent part. The connection area 42 has an insulation displacement contact 45.

In the 1b - as well as in the 2a semi-transparent and in the 2b In the not yet inserted state of the contact insert 2 shown in section, the connection area 42 of the plug contact 4 protrudes through the connection opening 24 from the outer surface 22 of the contact insert 2.

In the 1c - as well as in the 3a semi-transparent and in the inserted state shown in section in Figure 3b, in which the contact insert 2 is pushed into the contact carrier housing 1 as far as it will go, the insulation displacement terminal 45 contacts the respective electrical wire 51 of the respective electrical line 5. For this purpose, the insulation displacement terminal 45 has previously severed the insulation 50 of the line 5.

The associated contacting process proceeds as follows: The lever 3 is pivotally held with its axis 31 in a cylindrical recess 120 on the outer wall 12 of the contact carrier housing 1. By pivoting the lever 3 about its axis 31 from the open position shown vertically in the drawing to a locking position shown horizontally in the drawing, the contact insert 2 is inserted into the contact carrier housing 1. The force is transmitted from the lever 3 to the contact insert 2 via a toothed ring 33 of the lever 3 and via a tooth contour 223 of the outer surface 22. The aforementioned pivoting is preferably carried out by manually actuating its lever arm 32. When the contact insert 2 is pushed into the contact carrier housing 1, the - in particular elastically - deformable connection area 42 of the plug contact 4 comes into mechanical contact with the outer wall 12 of the contact carrier housing 1 and is thereby bent into the contact insert 2 in order to sever the insulation 50 of a line 5 of an electrical cable 500 connected or to be connected to the plug connector, said line 5 being inserted into the contact chamber 20 on the connection side, with its inwardly directed insulation displacement contact 45, and thereby to electrically contact the electrical wire 51 of the line 5.

For this purpose, the said outer wall 12 can have a 2b have a sliding bevel 124 shown and designated, via which the said deformable connection area 42 of the plug contact 4 is bent through a connection opening 24 into the contact chamber 20 of the contact insert 2 when the contact insert 2 is pushed into the contact carrier housing 1 as mentioned above.

The 4a shows the assembled contact carrier. The contact carrier housing 1 and the contact insert 2, which is inserted into it by means of the lever 3 and locked thereto, are electrically connected, as mentioned above, to the cable 500, which has the aforementioned lines 5 (cf. 5a) .

The 4b and 4c show the complete connector in which the contact carrier is housed in a metallic connector housing 6.

The cable 500 is secured by a cable gland 7 to a cable outlet opening on the connection side of the cable outlet element 8 (not visible in the drawing). This provides strain relief, in particular, for the insulation displacement terminals 45.

The 5a shows a connecting element 9 with a cable insertion opening 90 and several concentrically and inwardly movable arranged Blade contacts 93. These serve to contact the shield of the cable 500 and thus to connect the connector housing 6 to the ground. They each have an outer contact surface, which is a bevel 933, and an inwardly directed cutting edge 935.

In an alternative embodiment, which is hereby expressly disclosed in connection with the invention, instead of the inwardly pivoting blade contacts 93, mandrel contacts which can be moved inwardly in a translational manner could also be used.

Also shown is the electrical cable 500 to be inserted. This cable 500 has an outer overall insulation 550, a cable shield 53 located underneath, and the aforementioned plurality of electrical lines 5.

The 5b shows the connecting element 9 with the electrical cable 500 inserted into its cable insertion opening 90.

The blade contacts 93 are still in their non-actuated position. Their cutting edges 935 are in contact with the overall insulation 550 of the cable 500.

In the 5c the blade contacts 93, on the other hand, have been moved inwards, have severed the overall insulation 550 and are now electrically contacting the cable shield 53.

In the aforementioned alternative embodiment, the pin contacts would then penetrate the overall insulation 550 of the cable 500 with their pins and electrically contact the cable shield 53 with their tips. This also applies here - even if not shown in the drawing - expressly disclosed in connection with the invention.

The 6a and 6b show a comparable process using a sectional view of the complete connector with the electrical cable 500 inserted through a cable outlet opening and at least partially connected to the connector. The connector has the connector housing 6, the cable gland 7, the cable outlet element 8 and the connecting element 9.

In the 6a The cable outlet element 8 is in the unscrewed state. However, the cable outlet element 8 already touches the engagement bevels 933 of the blade contacts 93 with its funnel-shaped section 83. At the same time, the blade contacts 93 rest with their cutting edge 935 on the outer overall insulation 550 of the cable 500.

In the 6b The cable outlet element 8 is shown in its state screwed to the connector housing 6 by means of the cable gland 7. The funnel-shaped section 83 has pressed the blade contacts 93 inward via their engagement bevels 933, so that their cutting edges 935 penetrate the overall insulation 550 and electrically connect the cable shield 53 to the cable outlet element 8 and thus also to the connector housing 6.

In addition, the cable gland 7 fixes the cable 500 to the cable outlet element 8 and seals the cable 500 against the connector housing 6 by means of a seal, namely a circumferential sealing ring 89.

Although various aspects or features of the invention are shown in combination in the figures, it will be apparent to those skilled in the art—unless otherwise stated—that the illustrated and discussed combinations are not the only possible ones. In particular, corresponding units or feature complexes from different embodiments can be interchanged.

List of reference symbols

1

Contact carrier housing

10

Plug-in side

11

Plug-in section

12

exterior wall

120

cylindrical recess

124

Sliding slope

13

Connection side

130

Contact carrier housing opening

2

Contact insert

20

Contact chambers

21

Plug-in area

22

exterior surface

223

Tooth contour

23

Connection surface

24

Connection opening

3

lever

31

axis

32

lever arm

33

sprocket

4

plug contact

41

Plug-in area

42

Connection area

45

insulation displacement terminal

5

electrical line

50

insulation

51

electrical wire, electrical conductor, stranded wire

53

Cable shield

500

Cable

550

Total insulation

6

Connector housing

7

cable gland

8

Cable outlet element

83

funnel-shaped section

89

Seal, sealing ring

9

connecting element

90

Cable entry opening

93

Blade contacts

933

Attack surfaces, attack angles

935

Cut

QUOTES CONTAINED IN THE DESCRIPTION

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

Cited patent literature

• DE 102 16 483 C1 [0005]

Claims (16)

A device for electrically contacting a cable shield (53), comprising - a connecting element (9), comprising ◯ a cylindrical cable insertion opening (90) extending in a cable insertion direction for inserting and holding an electrical cable (500); and further comprising - a plurality of electrically conductive blade (93) or mandrel contacts arranged concentrically around the cable insertion opening (90) and held on the connecting element (9) so as to be movable radially relative to the cable insertion opening (90), which ◯ on the one hand each have an inwardly directed cutting edge (935) or an inwardly directed mandrel, and ◯ on the other hand each have an outwardly directed engagement surface (933); and further comprising - an electrically conductive cable outlet element (8), and a cable gland (7) for screwing the cable outlet element (8) against the connecting element (9) to generate a screw force extending in the cable insertion direction, wherein the cable outlet element (8) has the following: ◯ a cylindrical cable outlet opening; and ◯ a funnel-shaped section (83) for redirecting the aforementioned screw force by interacting with the engagement surfaces (933) of the blade (93) or mandrel contacts, which can thereby be moved inward under the force, for severing an outer overall insulation (550) of the cable (500) to electrically contact a cable shield (53) of the cable (500) located beneath the overall insulation (550) with their cutting edges (935) or their mandrels, on the one hand, and for electrically contacting the cable outlet element (8) with their engagement surfaces (933), on the other hand, to establish an electrical connection between the cable shield (53) and the cable outlet element (8) via the blade contacts (93). Device according to Claim 1 , whereby the attack surfaces are attack slopes (933). Device according to one of the Claims 1 until 2 , wherein the blade (93) or mandrel contacts and/or the cable outlet element (8) each consist at least largely of metal. Device according to one of the Claims 1 until 3 , wherein the blade contacts (93) are held pivotably and/or translationally movable on the connecting element (9), or wherein the mandrel contacts are held translationally movable on the connecting element (9). Connector comprising a device according to one of the preceding claims, as well as a contact carrier and a metallic connector housing (6) to which the device is fixed or at least fixable. Connectors according to Claim 5 , wherein the cable outlet element (8) is screwed or at least screwable to the connector housing (6). Connectors according to one of the Claims 5 until 6 , wherein - the contact carrier has two separate parts, namely a contact carrier housing (1) and a contact insert (2), wherein the contact carrier housing (1) has the following: ◯ a plug-in side (10) and ◯ a connection side (13) opposite the plug-in side (10), ◯ and a circumferential outer wall (12) connecting the plug-in side (10) and the connection side (13), ◯ and a plug-in section (11) on the plug-in side ◯ and a connection-side contact carrier housing opening (130); - and wherein the contact insert (2) ◯ can be inserted into the contact carrier housing (1) through the connection-side contact carrier housing opening (130) in the plug-in direction, ◯ consists of an electrically insulating material ◯ and has a plug-in surface (21) facing the plug-in side (10) in the assembled state, ◯ and a connection surface (23) opposite the plug-in surface (21), ◯ and has a plurality of contact chambers (20) designed as through-openings and running in a plug-in direction, ▪ wherein the contact chambers (20) connect the plug-in surface (21) to the connection surface (23), ◯ wherein the contact insert (2) further has a circumferential outer surface (22), ▪ which connects the plug-in surface (21) to the connection surface (23), ▪ wherein the outer surface (22) runs in the plug-in direction and thus parallel to the contact chambers (20), ◯ wherein each of the contact chambers (20) has a lateral connection opening (24), ▪ which connects the respective contact chamber (20) to the outer surface (22), so that the respective contact chamber (20) is open towards the outer surface (22), ◯ wherein a metallic plug contact (4) is arranged in each contact chamber (20), ▪ wherein each plug contact (4) has at least two metallic parts which are mechanically and electrically connected to one another, namely a first part and a second part, ▪ wherein the first part of the plug contact (4) is arranged on the plug side in the assembled state plug-in area (41) is formed, ▪ and wherein the second part of the plug-in contact (4) is formed by a connection area (42) which is fastened to the aforementioned plug-in area (41) and electrically conductively connected to the plug-in area (41), consists of deformable sheet metal and is arranged on the connection side in the assembled state, • wherein the connection area (42) has an insulation displacement terminal (45), - wherein the connection area (42) of the plug-in contact (4) protrudes through the connection opening (24) from the outer surface (22) of the contact insert (2) when the contact insert (2) is not inserted, ◯ so that when the contact insert (2) is inserted into the contact carrier housing (1), it comes into mechanical contact with the outer wall (12) of the contact carrier housing (1) and is thereby bent completely into the contact insert (2) in order to form, with its inwardly directed insulation displacement terminal (45), an insulation (50) of a connection-side to sever an electrical line (5) of an electrical cable (500) to be connected to the connector, which is inserted into the contact chamber (20), in order to electrically contact an electrical wire (51) of the line (5). Connectors according to Claim 7 , wherein the respective connection area (42) of the plug contacts (4) is at least partially produced using stamping and bending technology. Connectors according to one of the Claims 7 until 8 , wherein the plug connector has at least one lever (3) pivotally mounted on the outer wall (12) of the contact carrier housing (1) and engaging the contact insert (2) to facilitate the insertion of the contact insert (2) into the contact carrier housing (1). Connectors according to Claim 9 , wherein the at least one lever (3) has a toothed ring (33) with which it engages the contact insert (2). Connectors according to one of the Claims 9 until 10 , wherein the connector housing (6) has a connection-side screw thread for screwing in or unscrewing the cable gland (7) for screwing the cable outlet element (8) to the connector housing (6). Connectors according to Claim 11 , wherein the at least one lever (3) can be fixed in its actuated position by the connector housing (6) and/or by the screwed cable outlet element (8). Connectors according to one of the Claims 11 until 12 , wherein the blade (93) or mandrel contacts are pressed radially inwards by screwing the cable outlet element (8) in order to penetrate an overall insulation (550) of a cable sheath of the electrical cable (500) and to electrically contact the cable shield (53) of the cable (500). Connectors according to one of the Claims 5 until 13 , wherein the connector is a circular connector which has an essentially cylindrical basic shape. Connector according to one of the preceding claims, wherein the contact insert (2) is substantially cylindrical. Method for shield contacting the electrical cable (500) by means of a device according to one of the Claims 1 until 4 , comprising the following steps: A. Inserting the cable (500) in the cable insertion direction through the cylindrical cable insertion opening (90) of the connecting element (9), B. Screwing the cable outlet element (8) against the connecting element (9) to generate a screw force directed in the cable insertion direction and C. Diverting the screw force by interaction of the funnel-shaped section (83) of the cable outlet element (8) with the engagement surfaces (933) of the blade (93) or mandrel contacts moved inwards by the force thereby; D. Cutting through an outer overall insulation (550) of the cable (500) and E. Electrical contacting of a cable shield (53) located under the overall insulation (550) with the cutting edges (935) or mandrels of the blade (93) or mandrel contacts on the one hand and simultaneously F. Electrical contacting of the cable outgoing element (8) with the contact surfaces (933) of the blade (93) or mandrel contacts on the other hand, in order to establish an electrical connection between the cable shield (53) and the cable outgoing element (8) via the blade (93) or mandrel contacts.