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:
May. 27, 2025
Filed:
May. 29, 2023
Aac Microtech (Changzhou) Co., Ltd., Jiangsu, CN;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Abstract
A double-sided sound device includes a first vibration system, a second vibration system, and a magnetic circuit system, and the second vibration system is disposed at a lower side of the first vibration system. The magnetic circuit system includes an inner magnet part, an outer magnet part, and non-magnetically conductive connectors. The inner magnet part includes a first inner pole core, two first inner magnetic steels, a second inner magnetic steel, and a second inner pole core. The outer magnet part includes a first outer pole core, a second outer pole core, and outer magnetic steels. The non-magnetically conductive connectors connect the second outer pole core and the first inner pole core. The double-sided sound device reduces a product size, and further reduces material costs.