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:
Sep. 09, 2025
Filed:
May. 31, 2023
Aac Microtech (Changzhou) Co., Ltd., Jiangsu, CN;
Li Ren, Changzhou, CN;
Chao Zhang, Changzhou, CN;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Abstract
The present disclosure discloses a sound device including a frame, a magnet system, and a first vibration system and a second vibration system. The magnet system includes a first inner yoke, a main magnet fixed to the first inner yoke, and a second inner yoke fixed to one side of the main magnet away from the first inner yoke; the first vibration system includes a first diaphragm, a first coil surrounding the second inner yoke, and a first FPC electrically connected with the first coil; the first coil includes a first corner portion; the first FPC includes a first fixation portion, a first welding portion welded to the first coil, and a first elastic portion; the first welding portion is located on one side of the first corner portion away from the second inner yoke. The sound device has better magnetic field performance and vibration performance.