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. 29, 2022
Filed:
Aug. 14, 2020
Aac Technologies Pte. Ltd., Singapore, SG;
Kaihua Shen, Shenzhen, CN;
AAC Technologies Pte. Ltd., Singapore, SG;
Abstract
The present application discloses a sounding device including a base, and a vibration system and a magnetic circuit system fixed on the base. The vibration system includes a first diaphragm held on the base, and a voice coil of driving the first diaphragm to make a sound through vibration. The magnetic circuit system has a yoke and a magnetic body part fixed on the yoke. The yoke includes a main body arranged opposite to and apart from the base, and a turnup part fixed to the base. The magnetic circuit system further includes a breathable isolator attached to the turnup part and covering the through hole. Compared with the related art, the sounding device disclosed by the present application can prevent magnets from being separated from the yoke in a dropping experiment.