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. 02, 2024
Filed:
Aug. 24, 2022
Tiinlab Corporation, Shenzhen, CN;
Shihchia Chiu, Shenzhen, CN;
Anqi Li, Shenzhen, CN;
TIINLAB CORPORATION, Shenzhen, CN;
Abstract
A planar diaphragm speaker includes an enclosure, a vibration diaphragm assembly, and two magnet assemblies fixed in the enclosure. The vibration diaphragm assembly is arranged between the two magnet assemblies and spaced from the two magnet assemblies. The magnet assemblies each include a ring-shaped outer magnet and an inner magnet with a magnetic gap formed therebetween. The vibration diaphragm assembly includes a vibration diaphragm and a voice coil. The vibration diaphragm is formed with a trough. An effective-width portion of the voice coil spans over the magnetic gap. The planar diaphragm speaker with a simple structure can effectively increase the thickness of the voice coil without increasing a vibration compartment height, and provide, through collaboration with a dual-side magnetic circuit structure, a 360° dead zone free magnetic field to enhance the sensitivity and low frequency performance of the planar diaphragm speaker, exhibiting excellent utilization.