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:
Apr. 16, 2024
Filed:
Dec. 17, 2019
Goertek Inc., Shandong, CN;
GOERTEK INC., Weifang, CN;
Abstract
An acoustic device comprises a sound generating unit having a vibration diaphragm, the acoustic device is provided with a sound outlet, the sound waves at a front side of the vibration diaphragm radiates to the outside through the sound outlet; and an enclosed closed cavity formed at a rear side of the vibration diaphragm, the closed cavity is divided into first and second closed cavities by a partition part, and at least a portion of the partition part flexibly deforms, the first closed cavity is adjacent to the vibration diaphragm, the second closed cavity is far away from the vibration diaphragm, the volume of the second closed cavity is larger than that of the first closed cavity; the second closed cavity encloses the sound waves into the second closed cavity; at least a part of an electronic apparatus housing is used for forming the first and/or the second closed cavity.