Ventilation of a case of an illuminating or signalling device of a vehicle

摘要

The ventilation (4) has an envelope (5) defining an interior volume (24) with an input and an output and arranged to allow air circulation of the input toward the output or conversely. A reversible fixing unit (12) fixes the envelope to a wall of the casing. The envelope includes a seat (15) to receive a filter. The filter includes a filtering membrane (18), and the seat forms a shoulder intended to receive an edge of the filtering membrane. The envelope includes studs (22) for a central part of the membrane.