Invention Application
- Patent Title: SOUND-PRODUCING DEVICE
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Application No.: US17773441Application Date: 2020-11-05
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Publication No.: US20220386034A1Publication Date: 2022-12-01
- Inventor: Jianbin Yang , Shousong Qiang , Chunfa Liu
- Applicant: GOERTEK INC.
- Applicant Address: CN Weifang, Shandong
- Assignee: GOERTEK INC.
- Current Assignee: GOERTEK INC.
- Current Assignee Address: CN Weifang, Shandong
- Priority: CN201911089625.9 20191108
- International Application: PCT/CN2020/126801 WO 20201105
- Main IPC: H04R9/06
- IPC: H04R9/06 ; H04R9/04

Abstract:
Disclosed is a sound-producing device, including: a voice coil configured to be able to be input an electrical signal; and a damper including a first connecting part, a planar elastic part and a second connecting part. The first connecting part is configured to be connected to the voice coil; the second connecting part is configured to be fixed to the sound-producing device; the planar elastic part is formed by the first connecting part being bent and extending toward the second connecting part; the damper has a mechanical stiffness Kms of 0.2 N/mm to 2 N/mm; the sound-producing device has a resonance frequency F0 of 50 Hz to 300 Hz; the sound-producing device has a total harmonic distortion THD of less than 10% in a frequency range of 100 Hz to 300 Hz.
Public/Granted literature
- US11979731B2 Sound-producing device Public/Granted day:2024-05-07
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