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51. 发明授权

US06768806B1 Shorting rings in dual-coil dual-gap loudspeaker drivers 有权
标题翻译：双线圈双隙扬声器驱动器中短路环
公开(公告)号：US06768806B1
公开(公告)日：2004-07-27
申请号：US09271686
申请日：1999-03-18
申请人： Douglas J. Button , Ralph E. Hyde , Alex V. Salvatti
发明人： Douglas J. Button , Ralph E. Hyde , Alex V. Salvatti
IPC分类号： H04R2500
CPC分类号： H04R9/063 , H04R2209/041
摘要： Loudspeakers and other transducers of the dual-voice-coil/dual-magnetic-gap type can be improved by the addition of one or more annular shorting rings strategically located in the vicinity of the two magnetic gaps. The shorting rings have no effect on a steady state magnetic field but act in opposition to any change in flux density or any displacement of the flux lines such as those that occur under the loading imposed when the voice coils are driven hard with audio frequency current. The location of the shorting rings determines their effect: location close to a voice coil reduces the voice coil inductance, location entirely within the magnetic flux loop centerline favors reduction of second harmonic and higher order even harmonic distortion, a centered location on the flux loop centerline, i.e. centered in the magnetic gap, favors reduction of third harmonic and higher odd order harmonic distortion, while location outside the flux loop as defined by its center line but near the voice coil acts generally to reduce harmonic distortion and reduce the voice coil inductance. Thus a plurality of rings can be strategically deployed at different locations so as to optimally suppress both even and odd order harmonic distortion and to reduce the voice coil inductance.
摘要翻译：可以通过添加一个或多个策略地位于两个磁隙附近的环形短路环来改善双音圈/双磁隙型的扬声器和其它换能器。短路环对稳态磁场没有影响，但是与磁通密度的任何变化或磁通线的任何位移相反，例如当音圈用音频电流驱动音圈时施加的负载下发生的那些。短路环的位置决定了它们的作用：靠近音圈的位置降低了音圈电感，位置完全在磁通回路中心线内，有利于二次谐波的降低和更高阶的偶次谐波失真，通量环中心线上的中心位置，即以磁隙为中心，有利于三次谐波的降低和更高的奇次谐波失真，而由其中心线限定的磁通环外的位置，但靠近音圈一般起到减少谐波失真并降低音圈电感的作用。因此，可以在不同的位置上策略性地部署多个环，以便最佳地抑制偶次和奇次谐波失真并减小音圈电感。

52. 发明授权

US06341167B1 Speaker 失效
标题翻译：扬声器
公开(公告)号：US06341167B1
公开(公告)日：2002-01-22
申请号：US09485901
申请日：2000-05-17
申请人： Masatoshi Okuyama , Masahide Sumiyama , Kazurou Okuzawa , Mutsufumi Fujii
发明人： Masatoshi Okuyama , Masahide Sumiyama , Kazurou Okuzawa , Mutsufumi Fujii
IPC分类号： H01R2500
CPC分类号： H04R9/04 , H04R7/127 , H04R9/063 , H04R2209/041 , H04R2307/021
摘要： A speaker comprising a magnetic circuit containing at least a magnetic gap, a frame connected to the magnetic circuit, and an integral unit consisting of a ring shaped voice coil bobbin unit which is wound around with coil to be coupled in the magnetic gap, and a diaphragm unit formed in the shape of an inverse letter “U” disposed on an upper edge of the voice coil bobbin unit. This speaker provides enhanced rigidity, a reduction in production/assembly cost, and an improved sound pressure level.
摘要翻译：一种扬声器，包括至少包含磁隙的磁回路，与该磁路连接的框架，以及由环形绕组线圈单元构成的整体单元，所述环形音圈线轴单元绕在与磁隙间耦合的线圈，隔膜单元形成为设置在音圈筒管单元的上边缘上的反字母“U”的形状。该扬声器提供增强的刚性，降低生产/组装成本以及改善的声压级。

53. 发明授权

US5862242A Speaker 失效
标题翻译：扬声器
公开(公告)号：US5862242A
公开(公告)日：1999-01-19
申请号：US706955
申请日：1996-09-03
申请人： Hiroyuki Takewa , Akihiro Furuta , Kazue Satoh , Mikio Iwasa , Kuniaki Sakai
发明人： Hiroyuki Takewa , Akihiro Furuta , Kazue Satoh , Mikio Iwasa , Kuniaki Sakai
IPC分类号： H04R7/20 , H04R9/02 , H04R25/00
CPC分类号： H04R9/02 , H04R7/127 , H04R9/063 , H04R2209/041
摘要： A speaker has a diaphragm of which plane shape as seen from a vibrating direction has a major axis and a minor axis, a band-shaped edge connected to the outer circumference of the diaphragm for holding so that the diaphragm may be free to vibrate, and a frame for holding the outer circumference of the edge, wherein a viscoelastic member is affixed to part of the edge and/or diaphragm.
摘要翻译：扬声器具有从振动方向看平面形状的振动膜具有长轴和短轴，带状边缘连接到隔膜的外周，用于保持隔膜可以自由振动，并且用于保持边缘的外周的框架，其中粘弹性构件固定到边缘和/或隔膜的一部分。

54. 发明授权

US5748760A Dual coil drive with multipurpose housing 失效
标题翻译：双线圈驱动与多功能外壳
公开(公告)号：US5748760A
公开(公告)日：1998-05-05
申请号：US798124
申请日：1997-02-12
申请人： Douglas J. Button
发明人： Douglas J. Button
IPC分类号： H04R9/02 , H04R9/06 , H04R25/00
CPC分类号： H04R9/06 , H04R9/022 , H04R9/025 , H04R2209/041 , H04R2400/00
摘要： An improved electromagnetic transducer able to produce more power per mass than a conventional transducer. This increased power per mass is made possible by combining a properly designed housing, a neodymium magnet and a dual coil structure. This design dissipates the heat generated by the transducer, increasing the efficiency and power of the transducer. Also, by dissipating heat more efficiently, the transducer can be made smaller and more powerful than conventional transducers.
摘要翻译：一种改进的电磁换能器，能够比常规换能器产生更多的质量功率。通过组合正确设计的外壳，钕磁体和双线圈结构，可以实现每质量增加的功率。该设计消除了传感器产生的热量，从而提高了传感器的效率和功率。此外，通过更有效地散热，换能器可以比传统的换能器更小更强大。

55. 发明授权

US4360707A Digitally driven combination coils for electrodynamic acoustic transducers 失效
标题翻译：用于电动声学换能器的数字驱动组合线圈
公开(公告)号：US4360707A
公开(公告)日：1982-11-23
申请号：US209948
申请日：1980-11-24
申请人： Joel R. Joseph , William F. Bleeke
发明人： Joel R. Joseph , William F. Bleeke
IPC分类号： H03F3/217 , H04R1/00 , H04R9/04 , H04R3/00
CPC分类号： H03F3/217 , H04R1/005 , H04R3/08 , H04R9/045 , H04R2209/041
摘要： An electrodynamic acoustic transducer (54) having two voice coils (50, 52), the coils being addressed by amplified digital signals. The system (12, 60, 54) utilizes a preamplified analog input signal (10) which is supplied to a bifurcated network, one such signal being processed by an inverter (18). The analog signals (42, 44) are compared with triangular waves (38, 40) to effect switched signals (46, 48) that are pulse width modulated signals. The signals (46, 48) are then amplified through impedances (76, 78) and high speed, high current semiconductor switch means (80, 82) so that the amplified digital signals serve as driver means communicated to the separately addressable coilds (50, 52). There is a dynamic balance achieved by separate energization of the coils (50, 52) whereby the diaphragm (97) is positively located in both axial driving directions and is disposed in equilibrium positions by the energization and balancing of the respective coils (50, 52). As a result, the dynamic range, clarity, cleaness, and response time is substantially improved. An important aspect of this invention is the direct addressing of two distinct coils (50, 52) by amplified pulse trains which are of digital characteristic. The speaker (54) does not require mechanical restoring means but instead the suspension of the diaphragm (97) has a high compliance and serves only to maintain concentric relationship of the voice coils (50, 52) with the gap (92).
摘要翻译：具有两个音圈（50,52）的电动声学换能器（54），所述线圈由放大的数字信号寻址。系统（12,60,54）利用提供给分叉网络的预放大的模拟输入信号（10），一个这样的信号由逆变器（18）处理。将模拟信号（42,44）与三角波（38,40）进行比较，以实现作为脉宽调制信号的开关信号（46,48）。然后，信号（46,48）通过阻抗（76,78）和高速大电流半导体开关装置（80,82）被放大，使得放大的数字信号用作驱动装置，该驱动装置传送到单独可寻址的组件（50,82） 52）。通过线圈（50,52）的单独通电实现动态平衡，由此隔膜（97）在两个轴向驱动方向上被确定地定位，并且通过各个线圈（50,52）的通电和平衡而设置在平衡位置）。结果，动态范围，清晰度，清洁度和响应时间显着提高。本发明的一个重要方面是通过具有数字特性的放大脉冲串对两个不同的线圈（50,52）进行直接寻址。扬声器（54）不需要机械恢复装置，而是隔膜（97）的悬挂具有高柔顺性，并且仅用于保持音圈（50,52）与间隙（92）的同心关系。

56. 发明公开

US20240251205A1 Audio Transducer With Forced Ventilation of Motor and Method 审中-公开
公开(公告)号：US20240251205A1
公开(公告)日：2024-07-25
申请号：US18597278
申请日：2024-03-06
申请人： Polk Audio, LLC
发明人： Sean O'Brien
IPC分类号： H04R9/02 , H04R9/06
CPC分类号： H04R9/022 , H04R9/025 , H04R9/063 , H04R9/06 , H04R2209/022 , H04R2209/041
摘要： A forced ventilation woofer or electromechanical transducer (e.g., 200 or 300) includes a motor structure and voice coil winding support structure or former (203 or 303) configured with a vented annular spacer (e.g., 250) and vented distal pole tip member (e.g., 255) having aligned radial channels aimed to transport heat away from a voice coil (202 or 302) during the transducer's reciprocating movement while providing an extended, linear dynamic range and continuous cooling for the voice coil. A dual magnetic gap embodiment has an inside annular spacer member (e.g., 355A) and a co-planar outside annular spacer member (e.g., 350-O), each made of a thermally conductive steel alloy.

57. 发明公开

US20240205576A1 MULTIFUNCTIONAL SOUND DEVICE 审中-公开
公开(公告)号：US20240205576A1
公开(公告)日：2024-06-20
申请号：US18337414
申请日：2023-06-19
申请人： AAC Technologies (Nanjing) Co., Ltd.
发明人： Lubin Mao , Jie Ma , Yun Tang , Ziang Li
IPC分类号： H04R1/02 , H04R1/28 , H04R9/02 , H04R9/04
CPC分类号： H04R1/025 , H04R1/283 , H04R9/025 , H04R9/045 , H04R9/046 , H04R2209/041
摘要： A multifunctional sound device includes a housing, a sound unit, and a motor assembly. The sound unit includes a frame, a vibration system, and a magnetic circuit system. The motor assembly includes a vibration unit and elastic components. The vibration unit includes driving coils and a mass block. The driving coils are fixed to the mass block and located in a magnetic field range of the magnetic circuit system. The mass block is made of conductive materials. The driving coils interact with the magnetic circuit system to enable the vibration unit to vibrate in a reciprocating mode after the driving coils are energized. Compared with related art, the multifunctional sound device is small in overall thickness and size, large in electromagnetic damping of a magnetic circuit, easy to assemble, and excellent in acoustic performance.

58. 发明授权

US12003937B2 Speaker 有权
公开(公告)号：US12003937B2
公开(公告)日：2024-06-04
申请号：US17880702
申请日：2022-08-04
申请人： AAC Microtech (Changzhou) Co., Ltd.
发明人： Weimin Chen
IPC分类号： H04R9/06 , H04R1/06 , H04R1/28 , H04R9/02 , H04R9/04
CPC分类号： H04R9/025 , H04R1/06 , H04R1/2811 , H04R9/043 , H04R9/045 , H04R9/06 , H04R9/063 , H04R2209/024 , H04R2209/041
摘要： 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.

59. 发明授权

US11805368B2 Loudspeaker 有权
公开(公告)号：US11805368B2
公开(公告)日：2023-10-31
申请号：US17421565
申请日：2020-08-12
申请人： Sotis AG
发明人： Danilo Herger
IPC分类号： H04R9/06 , H04R9/04 , H04R9/02 , H04R1/06
CPC分类号： H04R9/046 , H04R1/06 , H04R9/025 , H04R9/04 , H04R9/045 , H04R9/06 , H04R2209/041 , H04R2499/11
摘要： A loudspeaker is proposed, having an enclosure where the following components are installed: a magnetic circuit, a permanent magnet, a coil, a system positioning the coil in the gap between the enclosure and a permanent magnet, a resonating membrane diffuser, attached by an attachment mechanism to the coil, and lead wires with terminals. The coil is star-shaped. The technical result is to increase the loudspeaker's power and efficiency, to reduce its weight and size, and to improve the sound quality.

60. 发明公开

US20230199394A1 Audio Transducer With Forced Ventilation of Motor and Method 审中-公开
公开(公告)号：US20230199394A1
公开(公告)日：2023-06-22
申请号：US18109645
申请日：2023-02-14
申请人： Polk Audio, LLC
发明人： Sean O'Brien
IPC分类号： H04R9/02 , H04R9/06
CPC分类号： H04R9/022 , H04R9/025 , H04R9/063 , H04R9/06 , H04R2209/022 , H04R2209/041
摘要： A forced ventilation woofer or electromechanical transducer (e.g., 200 or 300) includes a motor structure and voice coil winding support structure or former (203 or 303) configured with a vented annular spacer (e.g., 250) and vented distal pole tip member (e.g., 255) having aligned radial channels aimed to transport heat away from a voice coil (202 or 302) during the transducer's reciprocating movement while providing an extended, linear dynamic range and continuous cooling for the voice coil. A dual magnetic gap embodiment has an inside annular spacer member (e.g., 355A) and a co-planar outside annular spacer member (e.g., 350-O), each made of a thermally conductive steel alloy.

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