公开(公告)号：US12003937B2

公开(公告)日：2024-06-04

申请号：US17880702

申请日：2022-08-04

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Weimin Chen

IPC: H04R9/06 ,  H04R1/06 ,  H04R1/28 ,  H04R9/02 ,  H04R9/04

CPC classification number: H04R9/025 ,  H04R1/06 ,  H04R1/2811 ,  H04R9/043 ,  H04R9/045 ,  H04R9/06 ,  H04R9/063 ,  H04R2209/024 ,  H04R2209/041

Abstract: A speaker includes a frame, a vibration system, and a magnetic circuit system. The vibration system and the magnetic circuit system are respectively disposed on the frame. The vibration system includes a sound film, flexible circuit boards, a connecting rack, and a voice coil. The flexible circuit boards are disposed at intervals with the sound film. The connecting rack is connected with the sound film and the flexible circuit boards. The voice coil is fixed to the connecting rack. The voice coil includes a first voice coil and a second voice coil, and the second voice coil surrounds outside the first voice coil. The speaker of the present disclosure effectively solves the problem of supplying power to the first voice coil during the voice coil driving. The voice coil driving effectively improves the BL, provides a larger driving force, and improves sensitivity, so that performance of the speaker is better.

公开(公告)号：US11910175B2

公开(公告)日：2024-02-20

申请号：US17880697

申请日：2022-08-04

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Xingchi Chen ,  Weimin Chen ,  Yao Hui

IPC: H04R7/18 ,  H04R7/12 ,  H04R9/02

CPC classification number: H04R7/18 ,  H04R7/127 ,  H04R9/025

Abstract: The present invention provides a speaker, including a frame with a containment space, a magnetic circuit system and a vibration system. The vibration system includes a vibration diaphragm. The diaphragm includes a dome and a suspension. The suspension includes a first fixed part, a suspension part, and a second fixed part extending away from the first fixed part from the outer edge of suspension part. The suspension part includes two short axle parts, two long axle parts, and a corner part connecting adjacent short axle parts and long axle parts. The vibration diaphragm includes a reinforcement assembly connected to the corner part and connected to the first fixed part and the second fixed part at both ends. By virtue of reinforcement assembly at the corner part of the suspension, the speaker can obtain better acoustic performance.

公开(公告)号：US20230199393A1

公开(公告)日：2023-06-22

申请号：US17826194

申请日：2022-05-27

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Weimin Chen ,  Kejia Liu ,  Yuheng Jiang

IPC: H04R7/12 ,  H04R9/02 ,  H04R9/04 ,  H04R7/20 ,  H05K1/18

CPC classification number: H04R7/127 ,  H04R9/025 ,  H04R9/045 ,  H04R7/20 ,  H05K1/189

Abstract: The present invention provides an acoustic device including a frame, a vibration system and a magnetic system. The vibration system includes a diaphragm, a voice coil assembly, and a support assembly. The support s assembly includes a flexible circuit board and a support membrane. The flexible circuit board includes a first fixing end secured to the frame, a second fixing end secured to the voice coil assembly, a connecting portion, and a soldering pad. The voice coil assembly includes a first voice coil and a second voice coil. The first voice coil includes a first leading wire. The first leading wire has a first extension part extending from a surface of the first voice coil, a second extension part bending and extending from the first extension part along an outer surface of the second voice coil, and a soldering part welding to the soldering pad.

公开(公告)号：US11950071B2

公开(公告)日：2024-04-02

申请号：US17826194

申请日：2022-05-27

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Weimin Chen ,  Kejia Liu ,  Yuheng Jiang

IPC: H04R7/12 ,  H04R7/20 ,  H04R9/02 ,  H04R9/04 ,  H05K1/18

CPC classification number: H04R7/127 ,  H04R7/20 ,  H04R9/025 ,  H04R9/045 ,  H05K1/189

Abstract: The present invention provides an acoustic device including a frame, a vibration system and a magnetic system. The vibration system includes a diaphragm, a voice coil assembly, and a support assembly. The support assembly includes a flexible circuit board and a support membrane. The flexible circuit board includes a first fixing end secured to the frame, a second fixing end secured to the voice coil assembly, a connecting portion, and a soldering pad. The voice coil assembly includes a first voice coil and a second voice coil. The first voice coil includes a first leading wire. The first leading wire has a first extension part extending from a surface of the first voice coil, a second extension part bending and extending from the first extension part along an outer surface of the second voice coil, and a soldering part welding to the soldering pad.

公开(公告)号：US12089023B2

公开(公告)日：2024-09-10

申请号：US17880699

申请日：2022-08-04

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Xingchi Chen ,  Weimin Chen ,  Yao Hui

IPC: H04R9/02 ,  H04R9/06

CPC classification number: H04R9/025 ,  H04R9/06 ,  H04R2307/204 ,  H04R2400/11

Abstract: The present invention discloses a micro speaker, including a frame with a containment space, a magnetic circuit system and a vibration system accommodated in the containment space. The vibration system includes a first diaphragm, a dome skeleton fixed to the first diaphragm, and a voice coil fixed on the dome skeleton. A welding plate structure is fixed on the dome skeleton, and a first circuit board and a second circuit board fixed to the frame respectively. The first diaphragm includes a first diaphragm area and a second diaphragm area. The thickness of the first diaphragm area is greater than the thickness of the second diaphragm area. The local thickening material is adopted to avoid the problem of speaker rigidity asymmetry caused by unbalanced heat distribution, so as to realize the stable operation of the speaker, and the manufacturing process is simple.

公开(公告)号：US20230247363A1

公开(公告)日：2023-08-03

申请号：US17880699

申请日：2022-08-04

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Xingchi Chen ,  Weimin Chen ,  Yao Hui

IPC: H04R9/02 ,  H04R9/06

CPC classification number: H04R9/025 ,  H04R9/06 ,  H04R2400/11 ,  H04R2307/204

Abstract: The present invention discloses a micro speaker, including a frame with a containment space, a magnetic circuit system and a vibration system accommodated in the containment space. The vibration system includes a first diaphragm, a dome skeleton fixed to the first diaphragm, and a voice coil fixed on the dome skeleton. A welding plate structure is fixed on the dome skeleton, and a first circuit board and a second circuit board fixed to the frame respectively. The first diaphragm includes a first diaphragm area and a second diaphragm area. The thickness of the first diaphragm area is greater than the thickness of the second diaphragm area. The local thickening material is adopted to avoid the problem of speaker rigidity asymmetry caused by unbalanced heat distribution, so as to realize the stable operation of the speaker, and the manufacturing process is simple.

公开(公告)号：US20230209272A1

公开(公告)日：2023-06-29

申请号：US17880698

申请日：2022-08-04

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Yao Hui ,  Xingchi Chen ,  Weimin Chen

IPC: H04R9/02

CPC classification number: H04R9/025 ,  H04R2400/11

Abstract: The present invention provides a micro speaker, including a frame with a containment space, and a magnetic circuit system and a vibration system contained in the containment space. The vibration system includes a first diaphragm, a circuit board, a skeleton, and a voice coil. The micro speaker further includes a welding plate structure and a balance component. The voice coil includes a lead wire electrically connected with the welding plate structure. By setting the balance component on the skeleton, the present invention can keep the weight balance at both ends of the skeleton, so as to ensure that the skeleton will not sway when the vibration system is working, so that the vibration of the skeleton is stable and the sound quality is improved.

公开(公告)号：US12143792B2

公开(公告)日：2024-11-12

申请号：US17880698

申请日：2022-08-04

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Yao Hui ,  Xingchi Chen ,  Weimin Chen

IPC: H04R9/02

Abstract: The present invention provides a micro speaker, including a frame with a containment space, and a magnetic circuit system and a vibration system contained in the containment space. The vibration system includes a first diaphragm, a circuit board, a skeleton, and a voice coil. The micro speaker further includes a welding plate structure and a balance component. The voice coil includes a lead wire electrically connected with the welding plate structure. By setting the balance component on the skeleton, the present invention can keep the weight balance at both ends of the skeleton, so as to ensure that the skeleton will not sway when the vibration system is working, so that the vibration of the skeleton is stable and the sound quality is improved.

公开(公告)号：US20230209270A1

公开(公告)日：2023-06-29

申请号：US17880697

申请日：2022-08-04

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Xingchi Chen ,  Weimin Chen ,  Yao Hui

IPC: H04R7/18 ,  H04R9/02 ,  H04R7/12

CPC classification number: H04R7/18 ,  H04R9/025 ,  H04R7/127

Abstract: The present invention provides a speaker, including a frame with a containment space, a magnetic circuit system and a vibration system. The vibration system includes a vibration diaphragm. The diaphragm includes a dome and a suspension. The suspension includes a first fixed part, a suspension part, and a second fixed part extending away from the first fixed part from the outer edge of suspension part. The suspension part includes two short axle parts, two long axle parts, and a corner part connecting adjacent short axle parts and long axle parts. The vibration diaphragm includes a reinforcement assembly connected to the corner part and connected to the first fixed part and the second fixed part at both ends. By virtue of reinforcement assembly at the corner part of the suspension, the speaker can obtain better acoustic performance.

公开(公告)号：US20230199395A1

公开(公告)日：2023-06-22

申请号：US17880702

申请日：2022-08-04

Applicant: AAC Microtech (Changzhou) Co., Ltd.

Inventor： Weimin Chen

IPC: H04R9/02 ,  H04R9/06 ,  H04R9/04 ,  H04R1/28

CPC classification number: H04R9/025 ,  H04R9/06 ,  H04R9/045 ,  H04R1/2811 ,  H04R2209/024

Abstract: A speaker includes a frame, a vibration system, and a magnetic circuit system. The vibration system and the magnetic circuit system are respectively disposed on the frame. The vibration system includes a sound film, flexible circuit boards, a connecting rack, and a voice coil. The flexible circuit boards are disposed at intervals with the sound film. The connecting rack is connected with the sound film and the flexible circuit boards. The voice coil is fixed to the connecting rack. The voice coil includes a first voice coil and a second voice coil, and the second voice coil surrounds outside the first voice coil. The speaker of the present disclosure effectively solves the problem of supplying power to the first voice coil during the voice coil driving. The voice coil driving effectively improves the BL, provides a larger driving force, and improves sensitivity, so that performance of the speaker is better.