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:
Feb. 26, 2019
Filed:
Oct. 24, 2017
Goertek Inc., Weifang, CN;
Jun Zhang, Weifang, CN;
Chengfei Zhang, Weifang, CN;
Goertek Inc., Weifang, CN;
Abstract
A loudspeaker module includes, but is not limited to, an independent housing enclosing a sealed cavity. The independent housing is provided with an opening communicating the cavity with the exterior. The loudspeaker module further includes, but is not limited to, a loudspeaker unit including, but not limited to, a vibration system, a magnetic circuit system and a casing and a front cover that receive the vibration system and the magnetic circuit system, a sidewall of the casing is provided with a rear sound aperture. An acoustic wave above the vibration system directly radiates to the exterior, and an acoustic wave below the vibration system radiates to a side via the rear sound aperture. The loudspeaker unit and the independent housing combine so that the rear sound aperture and the opening are sealingly engaged and communicate. The cavity of the independent housing forms a rear acoustic cavity of the loudspeaker module.