H - Electricity – 04 – R
Patent
H - Electricity
04
R
H04R 9/06 (2006.01)
Patent
CA 2716045
The invention relates to an improved self-cooling loudspeaker of the electrodynamic type, formed by a magnetic circuit consisting of a cylindrical permanent magnet (1) and two polar parts (2 and 3), namely a cylindrical "core ring" (2) positioned on the permanent magnet (1) and a "return vessel" (3) having a circular plan view, on which the permanent magnet (1) is placed. The invention is essentially characterised in that the "core ring" (2) includes a plurality of helical grooves (4) on the outer cylindrical face thereof, while the "return vessel" (3) also includes a plurality of helical grooves (5) on the upper part of the inner cylindrical face thereof, matching the grooving (4) of the "core ring" (2).
Altavoz autorrefrigerado perfeccionado, de tipo electrodinámico, constituido por un circuito magnético compuesto por un imán permanente (1) cilindrico y dos piezas polares (2 y 3), una de las cuáles es un "anillo de núcleo" (2) cilindrico colocado sobre el imán permanente (1), mientras que la otra pieza polar es un "vaso de retorno" (3) de planta circular, sobre el cuál se asienta a su vez el imán permanente (1), caracterizado esencialmente porque el "anillo de núcleo" (2) presenta una pluralidad de estrías helicoidales (4) en su cara cilindrica exterior, mientras que el "vaso de retorno" (3) presenta también una pluralidad de estrías helicoidales (5) en la parte alta de su cara cilindrica interior, coincidente con el estriado (4) del "anillo de núcleo" (2).
Acustica Beyma S.l.
Robic
LandOfFree
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