As shown in FIG. 5, upon the abutment a sealing tip 9 of the adapter 5 directly engages a transitional area between the electrical conductor 1 and its insulation 2 and improves the seal against any media that may seep in along the insulation 2 and into the adapter 5. As shown below, the pressure of the overmolding 7 during the overmolding of the connection ensures that the adapter 5 and thus the sealing tip 9 is firmly pressed against the insulation 2 and remains in place.
An alternative adapter 5 is shown in FIGS. 6 and 7. The adapter 5 itself consists of polypropylene (PP), but in contrast to the embodiment according to FIGS. 3 and 4, it was produced as a single-component injection-molded part. To improve the seal here, a separate gasket 6 is subsequently placed in the adapter and is secured by a cap 8. The cap 8 is clipped to the adapter 5. When the adapter 5 is mounted in this way it can be slid onto the electrical conductor in a manner similar to that of the adapter 5 in FIGS. 3 and 4. The cap 8 prevents the gasket 6 from dislodging from the adapter 5 during or after the overmolding process.
The gasket in both embodiments of the adapter 5 is made of a thermoplastic elastomer or silicone and comprises a sealing ring with several sealing lips, for example four sealing lips, that are directed inwardly toward the insulation 2 of the conductor 1. These soft sealing lips adapt to the insulation 2 of the electrical conductor 1, thus creating several sealing zones that very firmly prevent the intrusion of media such as water.