Audio modules with fins to reduce acoustic noise due to airflow
AssigneeApple Inc.
InventorsMarco Baratelli, Claudio Notarangelo, Matthew A. Donarski, Mo C. Chan
Life of this patent
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Abstract
Implementations of the subject technology provide an acoustic module with fins integrated within the acoustic module to reduce acoustic noise. Airflow caused by pressure changes due to an oscillating diaphragm can be diverted by the fins within the acoustic module. The diverted airflow provide a more uniform airflow distribution within the acoustic module, which leads to a lower peak velocity and less unwanted noise. Fins may include a curved or crescent shape and may be spaced in a certain manner to divert the airflow.
Claims20
An audio module, comprising:
- an enclosure that includes:
- a first volume that stores at least one audio component, and
- a second volume defining a channel that forms an acoustic path for the at least one audio component;
- and
- a plurality of fins at least partially disposed in the channel, the plurality of fins comprising:
- a first fin having a first length, and
- a second fin having a second length greater than the first length.
An audio module, comprising:
- an enclosure that comprising a channel;
- audio components located in the enclosure, the audio components configured to generate acoustical energy resulting in airflow;
- and
- a plurality of fins at least partially positioned in the channel, the plurality of fins configured to redistribute the airflow through the channel.
An electronic device, comprising:
- a display configured to present visual information;
- a housing coupled with the display;
- and
- an audio module carried by the housing, the audio module comprising:
- an enclosure that defines an internal volume, the enclosure comprising:
- a first housing part, and
- a second housing part, wherein the first housing part and the second housing part form a channel;
- audio components disposed in the internal volume, the audio components comprising:
- a diaphragm, and
- a voice coil configured to acoustically drive the diaphragm to generate acoustical energy, thereby generating airflow;
- and
- a plurality of fins configured to redistribute the airflow through the channel, the plurality of fins comprising:
- a first fin,
- a second fin, and
- a third fin, wherein each of the first fin, the second fin, and the third fin engage the first housing part and the second housing part.
Dependencies are inferred from the claim text.