Speaker box and electronic device
AssigneeAAG Technologies (Nanjing) Co., Ltd.
InventorsZhongyang Wang, Hezhi Wang, Jie Zhang
Life of this patent
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Abstract
A speaker box and an electronic device are provided. The speaker box includes a housing, a speaker unit, and a sound-absorbing foam sheet. The housing includes an accommodating space. The speaker unit is accommodated in the accommodating space. The speaker unit is enclosed with the housing to define a rear cavity. The sound-absorbing foam sheet is adhered to an inner wall of the rear cavity. The sound-absorbing foam sheet includes a foam block and sound-absorbing powders adhered in the foam block. Through the sound-absorbing foam sheet, resonant frequency of the speaker box is effectively reduced, acoustic performance of the speaker box is improved, a structure of the speaker box is stable, and a preparation of the speaker box is simple.
Claims9
A speaker box, comprising:
- a housing;
- a speaker unit;
- and
- a sound-absorbing foam sheet;
- wherein the housing defines an accommodating space, the speaker unit is accommodated in the accommodating space, the speaker unit is enclosed with the housing to define a rear cavity, and the sound-absorbing foam sheet is adhered to an inner wall of the rear cavity, and
- the sound-absorbing foam sheet comprises a foam block and sound-absorbing powders adhered in the foam block, the foam block is an open-cell foam, and cells of the foam block are exposed in the rear cavity, the foam block has a skeleton formed therein, the sound-absorbing powders are adhered on a surface of the skeleton.
Dependencies are inferred from the claim text.