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. 13, 2021
Filed:
Jan. 14, 2020
Merry Electronics(shenzhen) Co., Ltd., ShenZhen, CN;
Chia-Chung Lin, Taichung, TW;
Merry Electronics(Shenzhen) Co., Ltd., Shenzhen, CN;
Abstract
A speaker includes a frame, a first tuning portion, a vibration system and a magnetic circuit system. The frame has a lateral wall, a bottom wall, an accommodation space defined by the lateral wall and the bottom wall and an opening end located at a top end of the accommodation space. The first tuning portion is formed on the lateral wall of the frame. The vibration system is disposed in the accommodation space of the frame and has a vibration film vibrating along an axial direction of the frame. A rear chamber is defined by the vibration film and the bottom wall of the frame. The magnetic circuit system is disposed in the accommodation space of the frame. When the vibration film vibrates, an airflow generated in the rear chamber flows along the first tuning portion on the lateral wall and exits, so as to form a first tuning path.