Invention Grant
- Patent Title: Sound generator
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Application No.: US17535719Application Date: 2021-11-26
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Publication No.: US11800289B2Publication Date: 2023-10-24
- Inventor: Xudong Yan , Tao Shao , Xiaojiang Gu
- Applicant: AAC Microtech (Changzhou) Co., Ltd.
- Applicant Address: CN Changzhou
- Assignee: AAC Microtech (Changzhou) Co., Ltd.
- Current Assignee: AAC Microtech (Changzhou) Co., Ltd.
- Current Assignee Address: CN Changzhou
- Agency: W&G Law Group
- Priority: CN 2011384307.8 2020.11.30
- Main IPC: H04R9/06
- IPC: H04R9/06 ; H04R9/02 ; H04R9/04

Abstract:
Disclosed is a sound generator, including a bracket, and a vibration system and a magnetic circuit system. The vibration system includes a first vibration diaphragm, s a second vibration diaphragm, a first voice coil driving the first vibration diaphragm, and a second voice coil driving the second vibration diaphragm. The magnetic circuit system includes an iron core, a magnet assembly, and a magnetic frame. The first voice coil is disposed between the magnetic frame and the magnet assembly, and the second voice coil is disposed between the magnet assembly and the iron core. Therefore, two magnetic circuit structures are provided in the same magnetic frame space and drive the first vibration diaphragm and the second vibration diaphragm to vibrate and generate sound in different directions respectively, which improves the utilization efficiency of the magnetic circuit system while saving space, thereby improving the sound generation performance of the sound generator.
Public/Granted literature
- US20220174414A1 SOUND GENERATOR Public/Granted day:2022-06-02
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