Patent ID: 7715584

Claim:
A loudspeaker, comprising: a motor structure including a pole piece having an outer surface and a through bore, a top plate spaced from said outer surface of said pole piece to form a magnetic gap, and a voice coil moveable within said magnetic gap, said voice coil having an inner surface, an outer surface and a hollow interior; a frame mounted to said motor structure; an upper suspension connected to said frame; a diaphragm connected between said upper suspension and said voice coil, a cavity overlying said voice coil which is at least partially formed by said diaphragm; a lower suspension connected between said frame and said voice coil; an air deflector having an upper portion formed with a closed end, a lower portion connected to said upper portion and being formed with an open end and at least one bore located between said open and closed ends, said air deflector being mounted to said pole piece by sliding said lower portion along said outer surface of said pole piece, said lower portion frictionally engaging said outer surface of said pole piece to maintain said air deflector in position thereon and within said hollow interior of said voice coil, whereby a flow of air passing between said through bore of said pole piece and said cavity in response to movement of said voice coil is directed by said at least one bore of said air deflector into contact with said inner surface of said voice coil.