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US 10,540,952 B2Granted
Sound absorbing structure including nanofibers
OwnerMaryam Mohammadi Gojani, Mohammad Amani Tehran +1inventors
InventorsMaryam Mohammadi Gojani, Mohammad Amani Tehran, Ali Akbar Gharehaghaji
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Abstract
Disclosed herein is a sound absorbing structure which includes at least one sound-permeable nanofiber layer and at least one sound absorbing layer; in which, the sound-permeable nanofiber layer is placed alongside of the sound absorbing layer.
Claims23
A sound absorbing structure, comprising:
- at least one sound-permeable nanofiber layer with first patterns, the sound-permeable nanofiber layer comprising at least one of a patterned porosity and a random porosity, the sound-permeable nanofiber layer comprising a plurality of nanofibers configured to absorb low frequency sounds with a frequency less than 1800 Hz;
- at least one sound absorbing layer directly attached to the sound-permeable nanofiber layer;
- and
- a patterned member directly attached to the sound absorbing layer opposite the sound-permeable nanofiber layer,
- wherein the patterned member comprises second patterns that corresponds to first patterns of the at least one sound-permeable nanofiber layer, and wherein the patterned member includes a reticulated pattern, a spotted pattern, a perforated pattern, and a stapled pattern.
2 more elements
A method for fabricating a sound absorbing structure, comprising:
- providing a sound absorbing layer;
- attaching an electroconductive patterned member to the sound absorbing layer;
- and
- electrospinning a plurality of nanofibers directly on the sound absorbing layer or on the electroconductive patterned member to form a sound-permeable nanofiber layer with a patterned porosity corresponding to a pattern of the electroconductive patterned member.
1 more element
A method for fabricating a sound absorbing structure, comprising:
- providing a sound absorbing layer;
- depositing a plurality of nanofibers on the sound absorbing layer to form a nanofiber layer attached to the sound absorbing layer;
- increasing the sound permeability of the nanofiber layer to form a sound-permeable nanofiber layer attached to the sound absorbing layer;
- and
- directly attaching a patterned member to the sound absorbing layer opposite the sound-permeable nanofiber layer.
2 more elements
Dependencies are inferred from the claim text.