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:
Mar. 03, 2020
Filed:
Dec. 29, 2018
Aac Technologies Pte. Ltd., Singapore, SG;
Wu Wang, Shenzhen, CN;
Liang Zhang, Shenzhen, CN;
AAC Technologies Pte. Ltd., Singapore, SG;
Abstract
The present disclosure provides a speaker box including a lower cover, an upper cover, a sounding unit, a blocking wall, a surrounding wall, a communication hole and a gas permeable spacer. The sounding unit, the lower cover and the upper cover enclose a rear chamber. The rear chamber is partitioned into a first rear chamber and a second rear chamber by the blocking wall. The sounding unit is accommodated in the first rear chamber. A sound absorbing chamber having a gas permeable spacer is formed in the first rear chamber. The blocking wall has a communication hole that communicates the sound absorbing chamber with the second rear chamber, and the second rear chamber and the sound absorbing chamber are filled with sound absorbing particles. Compared with the related art, the speaker box of the present disclosure has a simple structure and excellent audio performance, especially excellent low frequency performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile