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. 06, 2021
Filed:
Dec. 08, 2019
Aac Technologies Pte. Ltd., Singapore, SG;
AAC Technologies Pte. Ltd., Singapore, SG;
Abstract
The present invention discloses a speaker, including a holder, a vibration unit and a magnetic circuit unit that are fixed to the holder. The magnetic circuit unit includes a yoke fixed to the holder, a main magnet and an auxiliary magnet that are assembled on the yoke. The main magnet is spaced apart from the auxiliary magnet to form a first magnetic gap. The yoke includes a bottom wall and a sidewall formed by extending from a periphery of the bottom wall while being bent. The main magnet and the auxiliary magnet are assembled on the bottom wall. The auxiliary magnet is provided along a long axis direction of the bottom wall. The sidewall is located in a short axis direction of the bottom wall, and the sidewall is spaced apart from the main magnet to form a second magnetic gap.