Ventilation element for a housing containing an electrical, mechanical or electromechanical member

摘要

An element for ventilating a housing containing an electrical, mechanical, electromechanical or similar member includes a rigid body having an outer cylindrical wall, closed at a first end by a closure part, the cylindrical wall being open at a second end coupled to the housing, the body containing an internal member of at least partly yieldable material having a first end close to the closure part of the rigid body and carrying a filtering membrane, and an open second end facing the housing. From the closure part an internal cylindrical portion projects containing the member and couples to this latter by interference so as to retain it within the body.

主权项

1. An element for ventilating a housing containing an electrical, mechanical, or electromechanical member, or a housing for electrical members or components,
said element comprising a rigid body having an outer cylindrical wall, closed at a first end by a closure part, said cylindrical wall being open at a second end coupled to the housing, said body containing an internal member of at least partly yieldable material having a first end close to the closure part of the rigid body and carrying a filtering membrane, and an open second end facing said housing, wherein from said closure part an internal cylindrical portion projects containing said member and couples to this member by interference to retain this member within the body, wherein the cylindrical portion extends parallel to the cylindrical wall as far as the second end of the rigid body, wherein between the cylindrical portion and the cylindrical wall an interspace is present connected to a compartment interposed between the first end of the yieldable member and the closure part of the rigid body, said connection being obtained by slots made in said cylindrical portion in proximity to said closure part, said slots cooperating with the internal member and contributing to its fixing to the rigid body.