US 2010/0304593 A1Published application

Connector impermeable to liquids

AssigneeHummel AG

InventorsMario Bartholoma, Fritz Zugel, Volker Gotz, Achim Hoch, Gunter Reich

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Abstract

A connector (1) impermeable to liquids, having two matching connector parts (3) and (5), which is sealed in a connected position by at least one peripherally extending circumferential sealing ring (6) provided between the connector pats (3) and (5). The plug-in position is secured by a rotatable, axially fixed threaded bushing (8), which is fixed in the axial direction, but rotatably supported on one of the connector parts, and the internal thread (9) of which is mated to the holding thread (10) on the other connector part. A further thread or projection or threaded part (12) mating with the interior thread (9) is provided in a loosening direction at a distance from the holding thread (10) interacting with the threaded bushing (8), and a distance A from the end of the holding thread (10) to that of the further thread (12) is greater than a plug-in depth of the connecting pins (2) into the bushings (4). The sealing ring (6) for both connector parts is disposed at a location at which it is still in the sealing position after pulling back the threaded bushing (8) that is detached from the holding thread (10). Any sparks occurring upon loosening of the contacts are therefore shielded from the environment.

Claims5

Dependent claims

A connector impermeable to liquids (1) comprising a first connector part (3) having connector pins (2) and a second connector part (5) having bushings (4) matching the connector pins (2), with the connector (1) in a plug-in position being sealed from liquids accessing the connector pins (2) and the bushings (4) by at least one peripherally extending circumferential sealing ring (6) located between the connector parts (3, 5), and the plug-in position being secured by a rotational, axially fixed threaded bushing (8), which is supported axially fixed but rotational on one of the connector parts and with an internal thread (9) thereof matching a holding thread (10) on the other connector part, at least one additional turn of thread or projection or threaded part (12) is provided in a loosening direction at a distance from an end of the holding thread (10), that cooperates with the threaded bushing (8) and matches the internal thread (9) of the threaded bushing (8), the distance (A) from the end of the holding thread (10) to the additional projection or turn of the thread or threaded part (12) is greater than an insertion depth of the connector pins (2) in the bushings (4), and the at least one sealing ring (6) for the two connector parts is arranged at a position at which, after retraction of the threaded bushing (8) loosened from the holding thread (10), it remains in a sealing position up to the additional projection or turn of the thread or threaded part (12).

Dependencies are inferred from the claim text.