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. 05, 2019
Filed:
Aug. 06, 2018
Aac Technologies Pte. Ltd., Singapore, SG;
Xuedong Lv, Shenzhen, CN;
AAC TECHNOLOGIES PTE. LTD., Singapore, SG;
Abstract
The present application discloses a speaker box, including: a housing having an accommodating space; a speaker accommodated in the accommodating space for dividing the accommodating space into a front cavity and a rear cavity; a sound passageway formed in the accommodating space for communicating the front cavity with outside of the speaker box; a leakage hole penetrating the housing for communicating the rear cavity with the outside; a first air permeable film covering the leakage hole; a sound cavity formed by the front cavity and the sound passageway; an auxiliary leakage hole penetrating the sound passageway for communicating the rear cavity with the sound passageway; and a second air permeable film covering the auxiliary leakage hole.