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:
Jul. 08, 2025
Filed:
Jan. 16, 2023
Aac Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Shasha Liu, Shenzhen, CN;
Xiaodong Liu, Shenzhen, CN;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Abstract
The present disclosure provides a speaker box, including a rear housing with a cavity, an elastic fixing member fixed to the rear housing, and a sound-producing unit supported on the elastic fixing member, an orthographic projection of the sound-producing unit being located in the cavity. The sound-producing unit includes a frame, a vibration system, a magnetic circuit unit, and a front cover defining a front cavity with the vibration system. The magnetic circuit unit includes a yoke, a main magnet, and an auxiliary magnet. The front cover includes a support portion, a cover plate, and a coating portion. The coating portion extends to a periphery of the yoke and completely wraps the auxiliary magnet jointly with the yoke. The elastic fixing member, the yoke, and the coating portion jointly seal the cavity to form a rear cavity.