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:
Oct. 13, 2026
Filed:
Apr. 25, 2024
Aac Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Qun Xiang, Changzhou, CN;
Xiaodong Liu, Changzhou, CN;
Shuai Li, Changzhou, CN;
Xiaojun Song, Changzhou, CN;
Chao Zhang, Changzhou, CN;
Yu Qi, Changzhou, CN;
Yang Shi, Changzhou, CN;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Abstract
A speaker includes a frame, a vibration system and a magnetic circuit system fixed with the frame, the magnetic circuit system includes a lower clamping plate, a main magnet fixed with an upper surface of the lower clamping plate, an annular secondary magnet surrounding the main magnet for forming a magnetic gap, the lower clamping plate includes a lower surface opposite to the upper surface and a leakage channel recessed from the upper surface to the lower surface but not penetrating the lower surface, the leakage channel connects to the magnetic gap and an outside of the annular secondary magnet. The present invention provides a thinner and more efficient sounding device. The present invention could effectively balance the sound pressure inside and outside the speaker and improve the acoustic performance of the speaker.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile