Acoustic resistor, acoustic resistor member including same, and audio device including same
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United States of America Patent
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Jul 23, 2019
Grant Date -
Jan 18, 2018
app pub date -
Feb 22, 2016
filing date -
Feb 27, 2015
priority date (Note) -
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Abstract
An acoustic resistor for use in an audio device includes a resin film having air permeability in a thickness direction of the resin film, and the resin film is a non-porous film having through holes formed to extend straight through the resin film in the thickness direction. This acoustic resistor is used in an audio device including: a transducing part that performs conversion between sound and an electrical signal and that includes an acoustic element; a housing enclosing the transducing part and having at least one opening; and a passage for gas that is present inside the housing and communicates with the opening and in which the acoustic element is placed. The acoustic resistor is placed between the opening and the acoustic element in the passage. The variation in properties of the acoustic resistor of the present disclosure can be made smaller than that of conventional acoustic resistors.
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