JP6996904B2 - A plug-in connector for electrical plug-in connection and a method for manufacturing the plug-in connector. - Google Patents

Description

The present invention relates to plug-in connectors for electrical plug-in connections and methods of manufacturing this type of plug-in connector.

Background Technology Connection technology for electrical plug-in connectors increasingly uses aluminum conductor paths for cost and weight reasons. Typically, a plug-in connector for an electrical plug-in connection includes a contact element that is electrically conductively connected to the cable and a contact support with a chamber that houses the contact element. The contact element here is inserted into the chamber along the insertion direction. This contact element has a contact section for electrical contact. Further, this contact element has a connection section in which the cable is electrically connected to the contact element.

In the case of this type of plug-in connector, where the cable or the conductive line of the cable is made of aluminum, it is possible that the contact elements are also made of copper alloy. This results in a combination of aluminum and copper at the connection point or section, which, in the presence of a medium (liquid or gas), induces electrochemical corrosion based on the potential difference between the two materials. there's a possibility that. In that case, even a small amount of this type of medium, for example, condensation inside the plug-in connection section that is sealed outwards is sufficient.

In order to protect the connection section, the connection section configured as, for example, a crimp sleeve can be welded. This type of plug-in connector is known, for example, from US Patent Application Publication No. 20150079857.

Disclosure of the Invention The present invention originates from the recognition that contact corrosion due to the combination of different materials of the electrical line and the contact element in the connection section may shorten the life of the plug-in connector or reduce the current load capacity. It is a thing.

Encapsulation of connecting sections with welded sleeves has been found to be very time consuming and costly.

Therefore, the connection between the conductive line and the contact element is permanently protected from the ingress of fluid medium (liquid or gas) by a simple, low cost and hassle-free mounting device. There may be a desire to provide a plug-in connector.

Advantages of the Invention The above requirements can be met by the subject matter of the invention according to the independent claims. Preferred embodiments of the present invention are described in the dependent claims.

According to the first aspect of the present invention, a plug-in connector for electrical plug-in connection is proposed. The plug-in connector includes a contact element electrically conductively connected to the cable, a contact support with a chamber for accommodating the contact element, and a first sealing element. This contact element is inserted into the chamber along the insertion direction. The contact element has a contact section for electrical contact. Further, this contact element has a connection section in which the cable is electrically connected to the contact element. In this case, the first sealing element is expected to contain a gel. In this case, the first seal element and the contact element are arranged relative to each other in the chamber so that the first seal element is arranged in the connecting section of the contact element.

Seen in the insertion direction, the connection section is located upstream of the contact section. The concept of "upstream" here does not mean the direction of the current, but rather the relative arrangement of different elements along the defined direction, eg, here the insertion direction. It is fixed. In this case, the insertion direction is so-called downstream.

The contact section for electrical contact may be configured to be in electrical contact with the opposing contact element, for example in the form of a contact pin or contact blade. In another embodiment, the contact section may be configured such that the contact element can be used like a direct plug. Thereby, the contact section can be electrically contacted with the contact surface (contact land) of the printed circuit board.

The expression "contact element" or "chamber" may also include the expression "exactly one contact element" or "exactly one chamber", however. It may also represent a chamber or contact accommodating chamber. Therefore, these two expressions should be read as "at least one contact element" or "at least one chamber".

The connection section can have, for example, a crimp lug in which the detached portion of the cable is conductively and mechanically fixed to the contact element. In another embodiment, the cable may be electrically connected to the contact element in the connection section by soldering or welding, or by a conductive adhesive.

It can be assumed that the connecting section is completely surrounded by the first sealing element.

The gel may contain, for example, a silicone fluid. The gel can include a system with vinyl end groups in which the chain extender is incorporated into the reticulostructure. For example, the gel may be composed of tetrakis (dimethylsiloxy) silane as a cross-linking agent, or may be composed of a methylhydrosiloxane-dimethylsiloxane-polymer having a trimethylsiloxy terminal group.

The gel provided on the sealing element preferably results in the sealing element filling even the smallest intervening space in the connecting section. Thereby, the gel together with the first sealing element advantageously and airtightly seals the connecting section, so that the infiltration of the fluid medium into the connecting section is largely excluded. In this way, contact corrosion at the connection points is advantageously suppressed. By arranging the first seal element and the contact element relative to each other in the chamber such that the first seal element is located in the connection section of the contact element, it is preferably inserted into the connection section. Not only is the infiltration of the fluid medium along the direction or the ingress of the fluid medium from the chamber in the direction opposite to the insertion direction suppressed, which further causes the connection section itself to be the first. It is encapsulated by the sealing element and the gel contained therein, resulting in sealing against the fluid medium.

Particularly preferably, the first sealing element has some self-healing effect due to the presence of the gel. This means that the gap formed in the seal element by the contact element removed when removing the contact element from the chamber (eg, to remove the contact element with poor contact from the chamber) is automatically resealed by the gel. Means that. Chambers without contact elements can also be sealed in this way against fluid media from the exterior space of the contact support.

In one evolution, the contact element is envisioned to contain copper or a copper alloy in its main components. Thereby, the contact element can be manufactured by a conventional method, for example, as a member that has been punched and bent, integrally and particularly easily and at low cost.

Alternatively or additionally, the conductive line of the cable may be assumed to contain aluminum in its main components. As a result, the cable can be manufactured at a particularly low cost. This reduces the manufacturing cost of the plug-in connector.

In one evolution, it is envisioned that the first seal element has a support element, in which case the support element comprises a gel of the first seal element. In other words, the gel may be adhered to or retained by the support element. The support element can in this case be considered as a three-dimensional body that can be inserted or inserted into the chamber of the contact support. This preferably results in the gel being able to be placed in the exact location or location within the containment chamber using the support element and permanently retained at the insertion site for the life of the plug-in connector. More preferably, the amount of gel inserted into the chamber can be accurately calibrated using support elements. A further advantage is that under the same support element, without requiring adaptation of the process of inserting the first sealing element into the chamber, based on the viscosity or fleece properties of the corresponding gels. It is possible to use different gels for various purposes. This is because the support element holds the gel to some extent.

In one evolution, it is assumed that the support element is porous. This preferably results in the support element being able to absorb the gel into the pores and accumulate it to some extent.

Alternatively or additionally, it may be assumed that the support element is elastically and reversibly deformable. This preferably results in the support element being manufactured, for example, with a slight oversize relative to the chamber so that it can be inserted into the chamber without damage. Thus, due to their elastically reversible properties, the support element and thus the first sealing element are held in the chamber in a stress-coupling or friction-coupling manner, eg, without repositioning.

In one evolution, it is envisioned that the support element is formed from a foam or fleece-like material.

For example, the support element may be made of a polyurethane foam. Further, the support element may be formed of a polyester-based material.

This enables particularly low cost manufacturing. The fleece-like material or foam provides a large inner surface on which the gel can be retained or accumulated. At the same time, they are easily deformable, easily manufactured and easily delivered. The material selection (foam or fleece-like material) allows the first seal element to be elastic of the support element, even if the contact element is removed from the chamber and first a gap is left in the first seal element or support element. The properties result in the chamber being still tightly sealed again. This self-healing effect is facilitated by the gel retained or accumulated within or on the support element. In this way, the space downstream of the first sealing element (as viewed upstream of the first sealing element with respect to the insertion direction) is always protected against the ingress of the fluid medium from the external space. Guaranteed.

In a further development, the chamber is provided with a mounting surface for the first sealing element, on which the end face facing the insertion direction of the first sealing element is mounted. A first pressure plate is provided in the chamber along the insertion direction upstream of the first sealing element. The first sealing element is pressed between the first pressure plate and the mounting surface using the first pressure plate.

The pressing of the first sealing element along the insertion direction preferably results in lateral expansion of the first sealing element with respect to the insertion direction. At the same time, the gel is pushed into all hollow and intervening spaces in the connecting section. Thereby, the connecting section is particularly well protected from contact with the infiltrating fluid medium. When the first sealing element includes a support element, pressing of the first sealing element also provides good sealing between the first sealing element and the inner wall of the chamber. In this case, the first pressure plate may be manufactured with a cross section slightly oversized with respect to the chamber. In this way, the first pressure plate remains stress-coupled or friction-coupled in the containment chamber without additional elements after it has been pressed against the first sealing element along the insertion direction. Can be done. An annular groove may be provided in the chamber to which the first pressure plate engages. This protects against pushing back in the direction opposite to the insertion direction.

The mounting surface may be realized, for example, by tapering the inner diameter of the chamber. In this way, it is possible to form some sort of shoulder with a mounting surface that points in the opposite direction of the insertion direction.

The first pressure plate may have a first through channel into which the cable is drawn. The first pressure plate can also have a C-shaped morphology, such as some sort of snap ring. The first pressure plate may also have at least one locking hook to allow it to be held under mechanical stress in the chamber after indentation of such a first sealing element.

The first pressure plate may be performed as a plate with a plurality of holes for pulling in the cable. In this case, the first pressure plate is designed for a plurality of first seals.

In a further development, a second sealing element is placed within the chamber. In this case, the second sealing element is formed separately from the first sealing element. The second sealing element may be located downstream of the first sealing element when viewed along the insertion direction. The second sealing element is separated from the first sealing element. This separation may be formed specifically along the insertion direction.

The second sealing element may also contain a gel. The second seal element can also have a support element containing a gel. In other words, the second sealing element may be configured similar to the first sealing element.

By providing the second sealing element, a particularly fluid-tight sealing property can be obtained. In this way, it is possible to advantageously extend the life of the contact. In addition, the separation of the two sealing elements also provides some form of redundancy. If one of the two sealing elements has a leak, the infiltration of the fluid medium into the connecting section is at least delayed by the other sealing element.

In a further development, it is envisioned that within the chamber a second pressure plate is provided upstream of the second sealing element along the insertion direction. The second sealing element is pressed between the second pressure plate and the first sealing element using a second pressure plate.

The second pressure plate may be configured similarly to the first pressure plate. This means that the second pressure plate may be configured like some sort of snap ring and may be stress-coupled, shape-coupled or friction-coupled and held in the chamber. By providing a second pressure plate, the second sealing element can be mounted and held in the chamber in a particularly simple and quick manner.

Here, a sandwich structure of some sort, i.e., viewed from the direction opposite to the insertion direction, has the following order: the mounting surface, the first sealing element, the first pressure plate, the second sealing element. A sandwich structure having an order such as a second pressure plate is particularly preferred.

According to the second aspect of the present invention, there is provided a method of manufacturing a plug-in connector for electrical plug-in connection. This method involves the following steps: That is,
A step of providing a contact element that is electrically conductively connected to a cable, wherein the contact element has a connection section in which the cable is electrically connected to the contact element.
A step of providing a contact support with a chamber for accommodating contact elements,
With the step of providing the first sealing element containing the gel,
The step of inserting the first sealing element into the chamber,
It comprises inserting the contact element into the chamber along the insertion direction through the first sealing element so that the connecting section of the contact element is located within the first sealing element. In this case, for example, it may be assumed that the first seal element completely surrounds the connection section.

This method favorably provides a particularly simple and reliable manufacture of plug connectors such that the connection section is permanently protected from contact with fluid media, especially moisture. In addition to the self-healing function of the first sealing element by the gel, the penetration insertion of the contact element penetrating the first sealing element provides a tighter and more secure sealing of all cracks, voids and cavities in the connection section. Bring.

For example, it is also understood that in yet another method step, the first pressure plate can be inserted into the chamber and pressed against the first sealing element before the insertion of the contact element and after the insertion of the first sealing element. I want to be done.

Alternatively, for example, after inserting the first sealing element, it is also possible to insert the contact element first, then only then insert the first pressure plate and / or press it against the first sealing element. be.

An embodiment with two sealing elements may be envisioned.

For this purpose, additional steps may be envisioned in which the second sealing element can be inserted into the chamber.

In that case, a second pressure plate can subsequently be inserted into the chamber. This second pressure plate can be pressed against the second sealing element.

It may be assumed that not all steps of this method are performed in the same place. For example, it can be envisioned to supply the customer with a contact support with a first sealing element inserted into the chamber and a first pressure plate pressed against it. The contact element can then be inserted into the chamber through the first pressure plate and seal element. Further, a second sealing element and a second pressure plate may already be provided. The insertion of the contact element can then be done by the customer or the manufacturer. For the purposes of the present application, this spatial and spatial separation of the method steps is considered to belong to the method.

Drawings Further features and advantages of the present invention will be apparent to those skilled in the art from the following description of exemplary embodiments with reference to the accompanying drawings. However, these exemplary embodiments should not be construed as limiting the invention.

Schematic perspective of a plug-in or plug-in connector component for accommodating contact elements to be internally locked from prior art. Schematic perspective of contact elements and cables before connection from prior art Contact elements and cables from FIG. 2a in the connected state Schematic sectional view of the plug-in connector according to the first embodiment. Schematic cross-sectional view of the plug-in connector according to a further embodiment

These drawings are only schematic and not necessarily to scale. In the figure, the same features or features of the same function are designated by the same reference numerals.

FIG. 1 shows a perspective view of a component of a plug-in connector 1 from the prior art, such as that used in vehicle structures. The plug-in connector 1 has a contact support 20 and a contact element 2 that can be inserted into the contact support 20 along the insertion direction E.

The contact element 2 is configured as a lance contact. It has a contact section 3 through which opposed contacts 50 (FIGS. 3a, 3b), not shown here, can be inserted through the insertion opening 5a for electrical contact. In another embodiment, the contact element 2 is configured as a direct contact element. Therefore, for example, the contact spring may be provided laterally with respect to the insertion direction E. This contact spring allows the electrical contact surface to come into contact with the upper or upper surface of the printed circuit board. In the illustrated embodiment, an elastically configured locking element 5 or locking lance 5, such as an elastically configured locking element 5 or locking lance 5, which protrudes outward and extends diagonally rearward to the outside of the contact element 2 in the contact section 3 is provided. It is formed. When viewed from the contact section 3 in the direction opposite to the insertion direction E, that is, the connection section 4 is connected upstream, and in the connection section 4, the cable 30 or the electric line of the cable 30 (not shown here) is connected. 31 is conductively fixed to the contact element 2. The cable 30 may be, for example, crimped, soldered or welded to the contact element 2, or may be adhered to the contact element 2 using a conductive adhesive. In this way, the cable 30 or the electrical line 31 of the cable 30 is electrically and mechanically connected to the contact element 2.

In the illustrated embodiment, the contact support 20 is divided into two parts. The contact support 20 has a first contact support element 21 and a second contact support element 22. Basically, an integrated embodiment is also conceivable. The contact support 20 has a plurality of chambers 23 configured to accommodate the contact element 2. Seen along the insertion direction E, in front of or upstream of the chamber 23, the plug has a seal mat in an embodiment not shown here, the seal mat from the external environment of the plug-in connector 1. It guarantees the sealing performance of the chamber 23 against a fluid medium (gas or liquid). The contact element 2 is inserted into the contact support 20 together with the cable 30 during the insertion process.

The first contact support element 21 has a first opening 26 for inserting the contact element 2 toward the contact element 2. Through this first opening 26, the contact element 2 is inserted into the first contact support element 21. The first contact support element 21 is secured to the second contact support element 22 using, for example, a locking hook 25 that engages the corresponding opening of the second contact support element 22. The second contact support element 22 located downstream of the first contact support element 21 has a second opening 27 below the second contact support element 22 in this figure, and the second opening 27 is provided. Through this, the opposed contact element 50 (not shown here) can be inserted into the contact support 20 in the direction opposite to the insertion direction E due to electrical contact with the contact element 2.

It should be understood here that there may be embodiments in which only one chamber 23 is provided within the contact support 20. In that case, in such an embodiment, only one contact element 2 is provided. Also here, it should be understood that even in a contact support 20 having a plurality of chambers 23, the individual chambers 23 may remain unmounted. In other words, the number of contact elements 2 may be less than the number of chambers 23 of the contact support 20.

FIG. 2a shows a perspective view of the contact element 2 from the prior art. The contact element 2 here is not yet electrically or mechanically connected to the cable 30. The contact element has a contact section 3 on the front side thereof, and the contact section is provided with an insertion opening 5a for the facing contact element. Further, a locking lance 5 is provided in the contact section 3, and the contact element 2 can be locked to the notch of the chamber 23 of the contact support 20 by using the locking lance 5. A connection section 4 is provided on the upstream side, the insertion direction E, or the rear end side of the contact element 2. This connection section 4 has two crimp lug pairs 41, 42 in the illustrated embodiment. The first crimp lug pair 41 is provided to electrically and mechanically connect the detached conductive line 31 of the cable to the contact element 2. The first crimp lug pair 41 shows the connection section 4 together with the stripped portion of the cable 30 or the electrical line 31. The second crimp lug pair 42 is used for fixing the electrical insulating portion 32 of the cable 30. This results in tension relief for the cable 30. The section of the second crimp lug pair is not assigned to the connecting section 4.

FIG. 2b shows the contact element 2 and the cable 30 in a mutually fixed state. The cable 30 is here that its electrical line 31 is electrically and mechanically connected to the contact element 2 by a first crimp lug pair 41 within the connection section 4. The insulating portion 32 is mechanically fixed to the contact element 2 using a second crimp lug pair 42.

The electric line 31 may be, for example, a litz wire.

FIG. 3a shows the plug-in connector 1 according to the first embodiment of the present invention. The plug-in connector 1 is shown here in a cross-sectional view. The contact element 2 may contain, for example, a copper alloy or copper in the illustrated embodiment. The electrical line 31 of the cable 30 may include, for example, aluminum or be made of aluminum. In the illustrated embodiment, the plug-in connector 1 includes a first sealing element 6,7,7a, 7b and a second sealing element 10,7,7a, 7b separated from the first sealing element 6,7,7a, 7b.

The first seal element 6 and the second seal element 10 may each have one support element 7 here. The support element 7 contains, retains, or accumulates gel.

The gel may contain, for example, a silicone fluid. The gel can include a system with vinyl end groups in which the chain extender is incorporated into the reticulostructure. For example, the gel may be composed of tetrakis (dimethylsiloxy) silane as a cross-linking agent, or may be composed of a methylhydrosiloxane-dimethylsiloxane-polymer having a trimethylsiloxy terminal group.

The support element 7 may be formed of, for example, a foam material 7a or a fleece-like material 7b. For example, the support element may be made of a polyurethane foam. The support element 7 may be made of a polyester-based material.

In the first sealing element, the end surface 8 facing the insertion direction E is mounted on the mounting surface 24 of the chamber 23. The first seal element 6 is arranged in the connection section 4 of the contact element 2. It can completely surround, for example, the connection section 4. This is brought about by first inserting the first seal element 6 into the chamber 23 and subsequently inserting the contact element 2 into the chamber 23 with its connection section 4 penetrating the first seal element 6. Can be done. The first sealing elements 6, 7, 7a, 7b are pressed between the first pressure plate 9 and the mounting surface 24 by using the first pressure plate 9. The first pressure plate 9 has a first through opening 9a. For example, the cable 30 is drawn through the first through opening 9a. The first pressure plate 9 may be configured like, for example, a snap ring. The first pressure plate 9 is stress-coupled or stress-coupled into the chamber 23 after it has been inserted into the chamber 23 from above in the figure and pressed against the first sealing elements 6,7,7a, 7b. It may be held in a shape-bound or friction-bound manner. The second sealing elements 10, 7, 7a, 7b are arranged upstream of the first pressure plate 9. It surrounds only the insulating area of the cable 30. That is, when viewed along the insertion direction E, the first pressure plate 9 is arranged between the first sealing element 6 and the second sealing element 10. The second sealing element 10 is also pressed along the insertion direction E by the second pressure plate 19, which is considered further upstream with respect to the insertion direction E. The second pressure plate 19 also has a second through opening 19a into which the cable 30 can be retracted.

Due to the selected arrangement configuration and the pressing of the two sealing elements 6 and 10 with the two pressure plates 9 and 19, the gel contained within these sealing elements 6 and 10 is lateral to the insertion direction E. It is guaranteed to seal multiple gaps and cavities when viewed in a plane of direction. Particularly preferably, the gel seals all gaps and cavities. In this way, the first sealing element 6 of the connection section 4 effectively protects against corrosion. Corrosion here can be the usual "discoloration" of uninsulated material within the connection section 4. When different materials are used for one contact element 2 and the other electric line 31, the occurrence of contact corrosion can be suppressed or prevented, in particular. Particularly preferably, such contact corrosion between the aluminum for the electrical line 31 and the copper or copper alloy for the contact element 2 is protected. The second sealing element 10 provides additional protection against the fluid medium infiltrating from the external space of the plug-in connector 1 towards the chamber 23. In this way, for example, additional seal mats can be saved.

FIG. 3b shows a further embodiment of the plug-in connector 1. In this embodiment, only the first sealing elements 6, 7, 7a, 7b are provided. The first sealing elements 6,7,7a, 7b also contain or consist entirely of gel. Again, the first seal elements 6, 7, 7a, 7b are arranged in the connection section 4 of the contact element 2 when viewed along the insertion direction. After the first sealing element 6 is inserted or inserted into the chamber 23, the contact element 2 penetrates the first sealing elements 6, 7, 7a, 7b and is newly inserted into the chamber 23. The first sealing elements 6, 7, 7a, 7b have a length larger than twice the length of the connecting section 4 seen along the insertion direction. It also surrounds the insulated section of the cable 30 at least for each section. Subsequently, the first sealing elements 6, 7, 7a, 7b are pressed by the first pressure plate 9. The first pressure plate 9 may initially assume only temporary mounting, or the first pressure plate 9 may have contact supports 20, 21, 22 after the insertion process of the contact element 2 is completed. It may be attached to and pressed against.

First, the first sealing elements 6,7,7a, 7b are pressed by the first pressure plate 9, and only then the contact element 2 penetrates the first through opening 9a of the first pressure plate 9. , The first sealing element 6,7,7a, 7b may be penetrated and inserted into the chamber 23.

In the embodiment of FIG. 3b, only the first pressure plate 9 is provided, and the necessity of providing the second pressure plate 19 is omitted as compared with the embodiment of FIG. 3a.

In contrast to the embodiment of FIG. 3a, the plug-in connector 1 of FIG. 3b is not complicated in terms of mounting. However, the plug-in connector 1 of FIG. 3b does not provide redundancy due to the second seal element 10 as compared with the embodiment of FIG. 3a.

For completeness, the two drawings 3a and 3b schematically show a facing insertion element / facing contact element 50 implemented as a pin or contact blade. It can be inserted through the second opening 27 of the contact support 20 along the arrow shown next to the opposed contact element 50 in the direction opposite to the insertion direction. Therefore, it can also be inserted into the insertion opening 5a of the contact element 2 to form electrical contact in this way. The contact element 2 may be manufactured, for example, as a member that has been punched and bent from a thin metal plate. The contact element 2 may be configured as a lance contact in which the locking element is located in the chamber 23 of the contact support 20 and engages in the notch of the contact element 2, or as a so-called clean body contact.

The contact support 20 may be manufactured from, for example, plastic. The first pressure plate 9 and the second pressure plate 19 may be manufactured from, for example, metal or plastic.

Finally, I would like to mention the following. The concepts such as "have" and "include" in the present application do not exclude other elements, and the concepts such as "one" do not exclude many. For example, the concepts of "one chamber", "one contact element", "one first seal element", "one second seal element" are "at least one chamber", "at least one contact element". , "At least one first seal element", "at least one second seal element" should be understood as synonymous with the concept. This also applies as a synonym to the other features described in the singular. Further, it is stated that the feature described with reference to one of the plurality of embodiments described above can also be used in combination with other features of another embodiment of the embodiments described above. deep. The reference code in the claims should not be regarded as a limitation.

Claims (9)

A plug-in connector for electrical plug-in connection
A contact element (2) electrically conductively connected to the cable (30),
A contact support (20) with a chamber (23) for accommodating the contact element (2) and a contact support (20).
Including the first sealing element (6),
The contact element (2) is inserted into the chamber (23) along the insertion direction (E).
The contact element (2) has a contact section (3) for electrical contact.
The contact element (2) has a connection section (4) in which the cable (30) is electrically connected to the contact element (2).
The first sealing element (6) contains a gel.
The first seal element (6) and the contact element (2) are such that the first seal element (6) is arranged in the connection section (4) of the contact element (2). They are located relative to each other in the chamber (23) and
A second sealing element (10) is arranged in the chamber (23).
The second sealing element (10) contains a gel and contains a gel.
The second seal element (10) is formed separately from the first seal element (6), and the second seal element (10) is viewed along the insertion direction (E). The second seal element (10) is arranged upstream of the first seal element (6), and the second seal element (10) is separated from the first seal element (6).
Plug-in connector. The first aspect of the present invention, wherein the contact element (2) contains copper or a copper alloy in its main member, and / or the conductive line (31) of the cable (30) contains aluminum in its main member. Plug-in connector. The first seal element (6) has a support element (7), wherein the support element (7) includes a gel of the first seal element (6), claim 1 or 2. Described plug-in connector. The plug-in connector according to claim 3, wherein the support element (7) is porous and / or elastically reversibly deformable. The plug-in connector according to claim 3 or 4, wherein the support element (7) is formed of a foam material (7a) or a fleece-like material (7b). A mounting surface (24) for the first sealing element (6) is provided in the chamber (23), and the mounting surface (24) is formed on the mounting surface (24) of the first sealing element (6). , The end face (8) facing the insertion direction (E) is placed, and the first pressure plate (9) is placed in the chamber (23) along the insertion direction (E). The first sealing element (6) is provided upstream of the element (6), and the first pressure plate (9) is used with the first pressure plate (9) and the above-mentioned mounting surface (6). 24) The plug-in connector according to any one of claims 1 to 5, which is pressed against the plug-in connector. In the chamber (23), a second pressure plate (19) is provided upstream of the second sealing element (10) along the insertion direction (E), and the second sealing element is provided. (10) according to claims 1 to 6 , wherein (10) is pressed between the second pressure plate (19) and the first sealing element (6) using the second pressure plate (19). The plug-in connector described in any one of the items . A method of manufacturing plug-in connectors for electrical plug-in connections.
The method is
A step of providing a contact element (2) electrically conductively connected to a cable (30), wherein the cable (30) is electrically connected to the contact element (2). A step having a connection section (4) connected to, and
A step of providing a contact support (20) with a chamber (23) for accommodating the contact element (2).
The step of providing the first sealing element (6) containing the gel,
The step of inserting the first sealing element (6) into the chamber (23) and
The first contact element (2) is arranged so that the connection section (4) of the contact element (2) is arranged in the first seal element (6) along the insertion direction (E). And the step of penetrating the sealing element (6) and inserting it into the chamber (23).
The step of inserting the second sealing element (10) containing the gel into the chamber (23),
With the step of arranging the second seal element (10) upstream of the first seal element (6) when viewed along the insertion direction (E).
The second seal element (10) is formed separately from the first seal element (6), and the second seal element (10) is the first seal. Separated from element (6),
Method. The method of claim 8 , wherein the first seal element (6) completely surrounds the connection section (4).

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