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:
Nov. 25, 2025
Filed:
Dec. 12, 2023
Aac Microtech (Changzhou) Co., Ltd., Jiangsu, CN;
Zhang Ren, Changzhou, CN;
Zhiwei Zhong, Changzhou, CN;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Abstract
A sound-generating device, including a bass cone frame, a bass vibration system, a bass magnetic circuit system, a treble cone frame, a treble vibration system, a treble magnetic circuit system and a conductive component. The treble vibration system includes a treble diaphragm and a treble voice coil. The bass magnetic circuit system includes a bass bottom plate and a first bass primary magnet. The treble magnetic circuit system includes a pole core, a first ring magnet and a second ring magnet both in a ring shape. The pole core includes a pole core body and a pole core wall. The first ring magnet is stackedly fixed to a side of the first bass primary magnet away from the bass bottom plate, and is located at an inner side of the pole core wall. The first ring magnet surrounds the conductive component, and is spaced from the conductive component.