Noise filter with an improved insulating case

Abstract

A noise filter (100) includes a hollow ferrite core (10) for receiving a cable (200) therein and an insulating case (20) covering the ferrite core. The insulating case is made up of a pair of case members (21, 22) each of which defines a number of resilient ribs (231) and a number of support ribs (232) in an inner face (230) thereof. The resilient ribs have sharp-angled tops which provide a radial force for the ferrite core. A pair of latches (233) are formed on a side of each case member for engaging with corresponding recesses (235) defined in the other case member to couple the two case members. A front wall (251) and a rear wall (252) of each case member define a dented top side (253) thereof respectively, wherein a plurality of serrated protrusions (254) are formed on the dented top sides for securing the cable.

Dependencies are inferred from the claim text.