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1. WO2020113115 - REINFORCED ACTUATORS FOR DISTRIBUTED MODE LOUDSPEAKERS

Publication Number WO/2020/113115
Publication Date 04.06.2020
International Application No. PCT/US2019/063769
International Filing Date 27.11.2019
IPC
H04R 7/04 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
7Diaphragms for electromechanical transducers; Cones
02characterised by the construction
04Plane diaphragms
H04R 7/16 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
7Diaphragms for electromechanical transducers; Cones
16Mounting or tensioning of diaphragms or cones
CPC
H04R 2400/03
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2400Loudspeakers
03Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones
H04R 2400/07
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2400Loudspeakers
07Suspension between moving magnetic core and housing
H04R 2400/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2400Loudspeakers
11Aspects regarding the frame of loudspeaker transducers
H04R 2499/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2499Aspects covered by H04R or H04S not otherwise provided for in their subgroups
10General applications
11Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
H04R 2499/15
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2499Aspects covered by H04R or H04S not otherwise provided for in their subgroups
10General applications
15Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
H04R 7/045
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
7Diaphragms for electromechanical transducers
02characterised by the construction
04Plane diaphragms
045using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
Applicants
  • GOOGLE LLC [US]/[US]
Inventors
  • GOMES, Rajiv Bernard
  • STARNES, Mark William
  • KING, Anthony
Agents
  • EPPERSON, Eli Zachary
  • BOWLEY, Chris C.
Priority Data
16/261,43529.01.2019US
16/599,88811.10.2019US
62/774,10430.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REINFORCED ACTUATORS FOR DISTRIBUTED MODE LOUDSPEAKERS
(FR) ACTIONNEURS RENFORCÉS POUR HAUT-PARLEURS EN MODE DISTRIBUÉ
Abstract
(EN)
An actuator includes a frame that includes a panel extending in a plane and one or more pillars extending perpendicular from the plane. The actuator further includes a magnetic circuit assembly that includes a magnet and a voice coil, which are moveable relative to each other along an axis perpendicular to the plane of the panel. The actuator also includes one or more suspension members attaching the frame to a first component of the magnetic circuit assembly. Each suspension member includes a vertical segment attaching the suspension member to a corresponding one of the pillars. Each suspension member also includes a first arm extending away from the corresponding pillar to an end attached to the first component of the magnetic circuit assembly. During operation of the actuator, the first arm of the suspension member flexes to accommodate axial displacements of the magnet relative to the voice coil.
(FR)
La présente invention concerne un actionneur comprenant un cadre qui comprend un panneau s'étendant dans un plan et un ou plusieurs piliers s'étendant perpendiculairement à partir du plan. L'actionneur comprend en outre un ensemble circuit magnétique qui comprend un aimant et une bobine acoustique, qui sont mobiles l'un par rapport à l'autre le long d'un axe perpendiculaire au plan du panneau. L'actionneur comprend également un ou plusieurs éléments de suspension fixant le cadre à un premier composant de l'ensemble circuit magnétique. Chaque élément de suspension comprend un segment vertical fixant l'élément de suspension à un pilier correspondant parmi les piliers. Chaque élément de suspension comprend également un premier bras s'étendant à l'opposé du pilier correspondant à une extrémité fixée au premier composant de l'ensemble circuit magnétique. Pendant le fonctionnement de l'actionneur, le premier bras de l'élément de suspension fléchit pour s'adapter à des déplacements axiaux de l'aimant par rapport à la bobine acoustique.
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