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. 18, 2025
Filed:
May. 24, 2023
Aac Microtech (Changzhou) Co., Ltd., Jiangsu, CN;
Jinming Li, Changzhou, CN;
Zhizhu Chen, Changzhou, CN;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Abstract
The present invention provides a speaker includes a frame, a vibration system, and a magnetic circuit system. The vibration system includes a diaphragm, a voice coil assembly, and a printed circuit board. The printed circuit board is arranged on both sides of the speaker. The magnetic circuit system includes a magnetic bowl and a magnet assembly. The printed circuit board includes a first fixing portion mounted with the frame, a second fixing portion mounted with the voice coil assembly, and a connecting portion. The connecting portion extends toward a direction of the magnet assembly until a part of a projection of the connecting portion along a vibration direction of the diaphragm is located on the magnet assembly. The speaker can increase the length of the force arm under the premise of minimizing the loss of BL, and improve the acoustic performance of the product.