(19)
(11) EP 1 248 494 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.03.2006 Bulletin 2006/10

(43) Date of publication A2:
09.10.2002 Bulletin 2002/41

(21) Application number: 02004928.4

(22) Date of filing: 05.03.2002
(51) International Patent Classification (IPC): 
H04R 9/02(2006.01)
 H04R 9/06(2006.01)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 23.03.2001 IT RE010026

(71) Applicant: S.I.P.E. Società Italiana Prodotti Elettromeccanici - S.p.A.
60037 Monte San Vito (Ancona) (IT)

(72) Inventors:
  • Nili, Tiziano
    60037 Monte San Vito (Ancona) (IT)
  • Sancisi, Carlo
    60037 Monte San Vito (Ancona) (IT)
  • Benedetti, Eleuterio
    60037 Monte San Vito (Ancona) (IT)

(74) Representative: Lecce, Giovanni 
Dott. Giovanni Lecce & C. S.r.l. Via Fratelli Ruffini, 9
20123 Milano
20123 Milano (IT)

   


(54) Cup-shaped loudspeaker armature with magnets from neodymium


(57) A cup (1, 1') for loudspeakers (2, 2') from neodymium, with possible upper planar plates (6) having such a shape as to obtain: greater ventilation air volumes (5, 5'), greater thermal dissipation and greater distance (D, D') between the diametric surfaces (3, 3') of magnets (2, 2') and the internal surfaces (4, 4') of said cups.
The cup has a convex shape and the ratio between the medium diameter (A) related to the internal wall at the flexion point and the external diameter (B) ranges between 1.4 and 1.8.







Search report