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:
Aug. 31, 2021
Filed:
Dec. 08, 2019
Aac Technologies Pte. Ltd., Singapore, SG;
Kaihua Shen, Shenzhen, CN;
Jun Wu, Shenzhen, CN;
AAC Technologies Pte. Ltd., Singapore, SG;
Abstract
A speaker box includes an upper shell and a lower shell that define a receiving space, and a speaker unit received in the receiving space and dividing the receiving space into front and rear cavities. The speaker unit includes a diaphragm spaced apart from the upper shell to form a front acoustic cavity. The upper shell is formed with a sound transmitting channel communicating the front acoustic cavity with the outside. The upper shell includes a top wall, and a support wall extending from the top wall towards the lower shell. The speaker box further includes a partition wall extending from the top wall towards the lower shell, and a cover plate extending from the partition wall towards the support wall. The partition wall, the cover plate and the support wall define at least two resonant cavities spaced apart from each other and in communication with the front cavity.