The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2020
Filed:
Dec. 30, 2018
Aac Technologies Pte. Ltd., Singapore, SG;
Peng Niu, Shenzhen, CN;
Zhichen Chen, Shenzhen, CN;
AAC Technologies Pte. Ltd., Singapore, SG;
Abstract
The present disclosure a speaker box including: a lower cover; an upper cover enclosing an accommodating space together with the lower cover; a sounding unit accommodated in the accommodating space. The sounding unit and the upper cover together enclose a front chamber, and the sounding unit. The lower cover and the upper cover together enclose a rear chamber. The speaker box further includes an air-permeable spacer assembly sleeved on an end of the sounding unit located in the rear chamber. The air-permeable spacer assembly includes a frame made of sound-absorbing cotton sleeved on the sounding unit, and an air-permeable spacer connected to a side of the frame close to the lower cover. The rear chamber is filled with sound-absorbing particles, and the air-permeable spacer assembly isolates the sounding unit from the sound-absorbing particles. Compared with the related art, the speaker box disclosure has a better low-frequency acoustic performance.