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1. WO2020114750 - STIFFENING PART FOR AN AUDIO SPEAKER CASING

Publication Number WO/2020/114750
Publication Date 11.06.2020
International Application No. PCT/EP2019/081406
International Filing Date 14.11.2019
IPC
H04R 1/28 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
20Arrangements for obtaining desired frequency or directional characteristics
22for obtaining desired frequency characteristic only
28Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
CPC
H04R 1/2896
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
22for obtaining desired frequency characteristic only
28Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
2869Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
2892Mountings or supports for transducers
2896for loudspeaker transducers
Applicants
  • SAGEMCOM BROADBAND SAS [FR]/[FR]
Inventors
  • CHUSSEAU, Hugo
  • BOURGOIN, Gilles
Agents
  • LAVAUD, Thomas
  • LAVIALLE, Bruno
  • DECORCHEMONT, Audrey
  • PROUVEZ, Julien
Priority Data
187224403.12.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) STIFFENING PART FOR AN AUDIO SPEAKER CASING
(FR) PIECE DE RIGIDIFICATION POUR CAISSON D'ENCEINTE ACOUSTIQUE
Abstract
(EN)
A stiffening part (25) arranged to be integrated into the interior of a casing (12) of an audio speaker (11) in order to stiffen said casing, the audio speaker also being capable of comprising at least one loudspeaker (18a) mounted on a first face (14) of the casing, the stiffening part comprising a connecting portion, at least one damping support defining a receiving space arranged to receive a damping device (40a) intended to limit vibrations of the loudspeaker, wherein the damping support comprises a plurality of ribs (34) distributed around the receiving space (31), each rib extending in a distinct plane parallel to a depth of the receiving space, the stiffening part being arranged such that, when the enclosure (11) is assembled, the connecting portion interconnects inner walls of a second face (15) of the casing and a third face (16) of the casing opposite each other and both perpendicular to the first face (14), the damping device being positioned in the receiving space, and a rear portion of the loudspeaker abutting the damping device.
(FR)
Pièce de rigidification (25) agencée pour être intégrée à l'intérieur d'un caisson (12) d'une enceinte acoustique (11) pour rigidifier ledit caisson, l'enceinte acoustique pouvant comprendre en outre au moins un haut-parleur (18a) monté sur une première face (14) du caisson, la pièce de rigidification comportant une portion de liaison, au moins un support d'amortissement définissant un espace d'accueil agencé pour accueillir un dispositif d'amortissement (40a) destiné à limiter des vibrations du haut-parleur, le support d'amortissement comprenant une pluralité de nervures (34) réparties autour de l'espace d'accueil (31), chaque nervure s'étendant dans un plan distinct parallèle à une profondeur de l'espace d'accueil, la pièce de rigidification étant agencée de sorte que, lorsque l'enceinte (11) est assemblée, la portion de liaison relie entre elles des parois internes d'une deuxième face (15) du caisson et d'une troisième face (16) du caisson opposées l'une par rapport à l'autre et toutes deux perpendiculaires à la première face (14), le dispositif d'amortissement est positionné dans l'espace d'accueil, et une partie arrière du haut-parleur vient en appui contre le dispositif d'amortissement.
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