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1. 发明申请

US20230138715A1 LOUDSPEAKER SYSTEM 有权
公开(公告)号：US20230138715A1
公开(公告)日：2023-05-04
申请号：US17432104
申请日：2019-10-15
申请人： SUZHOU SONAVOX ELECTRONICS CO., LTD.
发明人： Yuewu SHEN , Shenggang TAO , Jianfeng TANG , Xiaoqing WANG , Guoqiang CHAI
IPC分类号： H04R1/28 , H04R7/18
摘要： A loudspeaker system, having a good low-frequency response without a large box and effectively improving the efficiency of the loudspeaker system, so as to increase the output sound pressure level of the system, comprises a box and a plurality of loudspeakers arranged in the box and connected in parallel with each other, wherein each of the loudspeakers comprises a frame, a diaphragm arranged on the frame, and a voice coil for driving a vibration of the diaphragm; front surfaces of the diaphragms of the loudspeakers are arranged to face each other; a sound cavity is formed among the front surfaces of the diaphragms, and the sound cavity is in communication with the outside of the box; and each of the frames is located between a rear surface of its corresponding diaphragm and an inner wall of the box.

2. 发明授权

US11641550B2 Speaker 有权
公开(公告)号：US11641550B2
公开(公告)日：2023-05-02
申请号：US17553818
申请日：2021-12-17
申请人： AAC Microtech (Changzhou) Co., Ltd.
发明人： Bo Xiao , Chenliang Kong , Tong Zhang , Ronglin Linghu
IPC分类号： H04R9/02 , H04R7/18
摘要： Provided is a speaker, including a frame; a vibration unit fixed to the frame; and a magnetic circuit unit driving the vibration unit to vibrate and produce sound. The vibration unit includes a diaphragm and a voice coil; the diaphragm includes a first suspension, a second suspension and a vibrating portion; the magnetic circuit unit is provided with a magnetic gap, and the voice coil is inserted in the magnetic gap; the magnetic circuit unit includes a yoke; and the yoke and the diaphragm are arranged at two opposite sides of the frame; and the vibration unit further includes a fixing ring connected to the magnetic circuit unit; the second suspension surrounds the fixing ring; and an inner peripheral side of the second suspension is fixed to an end of the fixing ring away from the yoke. With this structure, the acoustic performance of the speaker can be improved.

3. 发明授权

US11617042B2 Acoustic transducers with a low pressure zone and diaphragms having enhanced compliance 有权
公开(公告)号：US11617042B2
公开(公告)日：2023-03-28
申请号：US17159983
申请日：2021-01-27
申请人： KNOWLES ELECTRONICS, LLC
发明人： Michael Kuntzman , Michael Pedersen , Sung Bok Lee , Bing Yu , Vahid Naderyan , Peter Loeppert
IPC分类号： H04R19/04 , H04R7/14 , H04R7/18
摘要： An acoustic transducer for generating electrical signals in response to acoustic signals, comprises a first diaphragm having a first corrugation formed therein. A second diaphragm has a second corrugation formed therein, and is spaced apart from the first diaphragm such that a cavity having a pressure lower than atmospheric pressure is formed therebetween. A back plate is disposed between the first diaphragm and the second diaphragm. One or more posts extend from at least one of the first diaphragm or the second diaphragm towards the other through the back plate. The one or more posts prevent each of the first diaphragm and the second diaphragm from contacting the back plate due to movement of the first diaphragm and/or the second diaphragm towards the back plate. Each of the first corrugation and the second corrugation protrude outwardly from the first diaphragm and the second diaphragm, respectively, away from the back plate.

4. 发明授权

US11589166B1 Speaker 有权
公开(公告)号：US11589166B1
公开(公告)日：2023-02-21
申请号：US17560268
申请日：2021-12-23
申请人： AAC Microtech (Changzhou) Co., Ltd.
发明人： Huhu Yang
IPC分类号： H04R9/02 , H04R7/18
摘要： Provided is a speaker, including: a frame, a vibration unit including a diaphragm, and a voice coil; a magnetic circuit unit including a yoke and a magnet, the magnetic circuit unit being provided with a magnetic gap; and a lower diaphragm. The voice coil is inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound; the lower diaphragm includes an inner connecting portion, an outer connecting portion, and an intermediate portion; the lower diaphragm includes a structural layer and a metal layer; the inner connecting portion includes a first recess, and the outer connecting portion includes a second recess; and the voice coil is electrically connected to the metal layer through the first recess, and the metal layer is electrically connected to an external circuit through the second recess. With this structure, internal space of the speaker is saved, reducing material cost and improving reliability.

5. 发明授权

US11589165B2 Sounding device 有权
公开(公告)号：US11589165B2
公开(公告)日：2023-02-21
申请号：US17536108
申请日：2021-11-29
申请人： AAC Microtech (Changzhou) Co., Ltd.
发明人： Xin Jin , Zhiwei Zhong
IPC分类号： H04R9/02 , H04R7/18
摘要： A sounding device includes a frame, a vibration system, and a magnetic circuit system having a magnetic gap. The vibration system includes a diaphragm fixed to the frame, a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate, a framework connected to the diaphragm, and an elastic conductor fixed to the frame and connected to one side of the framework away from the diaphragm. One end of the voice coil has a lead wire. The framework and the voice coil define a receiving space. The elastic conductor includes an elastic conductor body fixed to the frame, first to third connectors, first and second bending arms. The first bending arm is spaced apart from the second bending arm. The lead wire is fixed to and electrically connected to the third connector. The sounding device has a good consistency in bending size and high pad position precision.

6. 发明申请

US20230052353A1 LOUDSPEAKER AND ELECTRONIC DEVICE 有权
公开(公告)号：US20230052353A1
公开(公告)日：2023-02-16
申请号：US17975123
申请日：2022-10-27
申请人： VIVO MOBILE COMMUNICATION CO.,LTD.
发明人： Guozhu JIANG , Wei LI
IPC分类号： H04R1/24 , H04R7/12 , H04R9/06 , H04R9/04 , H04R9/02 , H04R7/18 , H04R1/02 , H04R1/34
摘要： A loudspeaker includes a support, a magnetic assembly, a first vibration assembly, and a second vibration assembly. The first vibration assembly and the second vibration assembly are respectively arranged on a first side and a second side opposite to the first side of the support; the first vibration assembly includes a first voice coil and a first vibration diaphragm, the second vibration assembly includes a second voice coil and a second vibration diaphragm, the first vibration diaphragm and the second vibration diaphragm are both connected to the support; and the support is provided with an accommodating space for arranging the magnetic assembly, a magnetic gap is formed between the magnetic assembly and the support, the first voice coil and the second voice coil are both at least partially located in the magnetic gap, the first vibration assembly and the second vibration assembly emit ultrasonic waves having different frequencies.

7. 发明授权

US11582558B2 Acoustic receiver and method of making same 有权
公开(公告)号：US11582558B2
公开(公告)日：2023-02-14
申请号：US16630874
申请日：2018-07-13
申请人： Knowles Electronics, LLC
发明人： Shehab Albahri , Paul Dayton , Thomas Miller
IPC分类号： H04R11/02 , H04R7/12 , H04R7/18 , H04R31/00
摘要： An acoustic receiver includes a first receiver subassembly having bottom housing plate with at least a portion of a motor fastened thereto, and a second receiver subassembly having a closed-ended housing wall with at least one open end that is fastened to the bottom housing plate. A method of making and assembling the components is also described.

8. 发明申请

US20230036168A1 ELECTROACOUSTIC TRANSDUCER 有权
公开(公告)号：US20230036168A1
公开(公告)日：2023-02-02
申请号：US17813181
申请日：2022-07-18
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Hidetoshi HIRAOKA
IPC分类号： H04R7/18 , H03H9/24
摘要： An electroacoustic transducer includes a diaphragm, a tubular first sliding component which surrounds an outer peripheral portion of the diaphragm, a ring-shaped second sliding component which is attached to an outer rim of the diaphragm and slides against an inner peripheral surface of the first sliding component, and a first low-friction membrane interposed between the inner peripheral surface of the first sliding component and an outer peripheral surface of the second sliding component. The first low-friction membrane includes: a swollen body which includes a first polymer chain and a plurality of second polymer chains which branch from the first polymer chain as side chains; and a grease which permeates the second polymer chains.

9. 发明申请

US20230030909A1 SPEAKER DEVICE 有权
公开(公告)号：US20230030909A1
公开(公告)日：2023-02-02
申请号：US17563069
申请日：2021-12-28
申请人： AAC Microtech (Changzhou) Co., Ltd.
发明人： Zhang Ren , Zhiwei Zhong
IPC分类号： H04R9/02 , H04R7/18
摘要： Provided is a speaker device, including a frame; a vibration unit fixed to the frame; and a magnetic circuit unit driving the vibration unit to vibrate and produce sound and including a magnetic gap. The vibration unit includes a diaphragm, a voice coil and an elastic support assembly. The frame includes a bottom wall and a side wall bending and extending from a periphery of the bottom wall of the frame, and an outer periphery of the diaphragm is fixed to the side wall. The vibration unit further includes a fixing ring configured to fix the elastic support assembly to the frame, and the fixing ring surrounds the magnetic circuit unit. The frame is made of a metal material, and the fixing ring is a metal ring fixed to the side wall of the frame by welding. With this structure, overall strength and reliability of the speaker device are improved.

10. 发明授权

US11546696B2 Miniature device having an acoustic diaphragm 有权
公开(公告)号：US11546696B2
公开(公告)日：2023-01-03
申请号：US16407574
申请日：2019-05-09
申请人： Bose Corporation
发明人： Wit Bushko , Thomas Landemaine , Prateek Nath
IPC分类号： H04R9/06 , H04R7/10 , B32B38/18 , H04R7/06 , H04R7/18 , H04R31/00 , H04R7/16
摘要： A method of forming a device having a compliant member includes creating a membrane having one or more elastomeric layers which are at least partially cured. Another elastomeric layer is provided on the membrane in an uncured state. At least one of a bobbin and a housing are positioned so that an end of the bobbin or housing, or the ends of both the bobbin and housing, extend at least partially into the uncured elastomeric layer. The uncured elastomeric layer is then cured to secure it to the membrane and to the housing or bobbin, or both the housing and bobbin. The method substantially reduces or eliminates the formation of holes that can form during fabrication or use of the device.

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