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. 02, 2025
Filed:
Nov. 28, 2023
Aac Microtech (Changzhou) Co., Ltd., Jiangsu, CN;
Zhang Ren, Changzhou, CN;
Zhiwei Zhong, Changzhou, CN;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Abstract
Provided is a speaker device, including a first frame, a first vibration system, a magnetic circuit system, a second frame, a second vibration system, a second voice coil, and a conductive member electrically connected to the second voice coil. The magnetic circuit system includes a lower splint, a first main magnetic steel, a first sub-magnetic steel, a pole core, a second main magnetic steel, and a second sub-magnetic steel. A magnetization direction of the first sub-magnetic steel is the same as that of the second sub-magnetic steel, a magnetization direction of the first main magnetic steel is the same as that of the second main magnetic steel, and the magnetization direction of the second main magnetic steel is opposite to that of the second sub-magnetic steel. Compared with the related art, the speaker device of the present invention has good acoustic performance.