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1. 发明公开

EP3203759A1 MAGNETIC CIRCUIT AND LOUDSPEAKER USING SAME 审中-公开
标题翻译：磁性电路和扬声器使用相同
公开(公告)号：EP3203759A1
公开(公告)日：2017-08-09
申请号：EP15846378.6
申请日：2015-09-25
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KUZE, Mitsukazu , INOUE, Hideaki , KOURA, Satoshi , SHIBUYA, Tomonori , DAN, Takayuki , ITANO, Tetsushi
IPC分类号： H04R9/02
CPC分类号： H04R9/06 , H04R7/127 , H04R7/18 , H04R9/02 , H04R9/025 , H04R2209/022 , H04R2400/11
摘要： An object of the present disclosure is to provide a loudspeaker with small distortion. In order to achieve the object, a magnetic circuit of the present disclosure includes a yoke having a first facing part and a magnetic part having a second facing part. The magnetic part supplies magnetic force to a magnetic gap. The second facing part faces the first facing part through a magnetic gap. A second upper end of the second facing part is disposed so as to be separated by a first distance from a first upper end of the first facing part. Meanwhile, a second lower end of the second facing part is disposed so as to be separated by a greater distance than the first distance from a first lower end of the first facing part. Thus, magnetic resistance between the first upper end and the second upper end is smaller than magnetic resistance between the first lower end and the second lower end. Accordingly, magnetic flux concentrates between the first upper end and the second upper end, and distortion of a magnetic flux density in the magnetic gap can be made small.
摘要翻译：本公开的目的是提供一种具有小失真的扬声器。为了实现该目的，本公开的磁路包括具有第一面对部分的磁轭和具有第二面对部分的磁性部分。磁性部分向磁隙供应磁力。第二面对部分通过磁隙面向第一面对部分。第二面对部分的第二上端被设置成与第一面对部分的第一上端分开第一距离。同时，第二面对部分的第二下端被布置成从第一面对部分的第一下端分开比第一距离更大的距离。因此，第一上端和第二上端之间的磁阻小于第一下端和第二下端之间的磁阻。因此，磁通量集中在第一上端和第二上端之间，并且可以使磁隙中的磁通量密度的变形变小。

2. 发明公开

EP3175633A1 BONE CONDUCTION MAGNETIC RETENTION SYSTEM 审中-公开
标题翻译：骨传导磁保持系统
公开(公告)号：EP3175633A1
公开(公告)日：2017-06-07
申请号：EP15828071.9
申请日：2015-07-29
申请人： Cochlear Limited
发明人： GUSTAFSSON, Johan
IPC分类号： H04R25/00 , A61F2/18
CPC分类号： H04R25/606 , A61N1/36036 , H04R2209/022 , H04R2225/67 , H04R2460/13
摘要： An external component of a medical device, including an actuator including a static magnetic flux path that reacts with a dynamic magnetic flux path to actuate the actuator, and a magnetic retention system configured to retain the external component to a recipient via interaction with a ferromagnetic component attached to a recipient, the magnetic retention system including a magnetic flux path that encircles the static magnetic flux path of the actuator.
摘要翻译：医疗装置的外部部件，其包括致动器，该致动器包括与动态磁通路径反应以致动致动器的静态磁通路径;以及磁保持系统，其被配置为通过与铁磁部件的相互作用将外部部件保持到接受者附接到接受者，磁性保持系统包括环绕致动器的静磁通路径的磁通路径。

3. 发明公开

EP3066844A1 LOUDSPEAKER ASSEMBLY WITH SUPPRESSION OF MAGNETIC FLUX MODULATION DISTORTION 审中-公开
标题翻译： LAUTSPRECHERANORDNUNG麻醉机UNTERDRÜCKUNGVON MAGNETFLUSSMODULATIONSVERZERRUNG
公开(公告)号：EP3066844A1
公开(公告)日：2016-09-14
申请号：EP14793131.5
申请日：2014-11-04
申请人： Danmarks Tekniske Universitet
发明人： AGERKVIST, Finn , ANTONELLO, Niccolo , CHRISTENSEN, Anders
IPC分类号： H04R9/02
CPC分类号： H04R1/22 , H04R3/08 , H04R9/025 , H04R9/06 , H04R29/003 , H04R2201/028 , H04R2209/022
摘要： An electrodynamic loudspeaker assembly having an electrodynamic loudspeaker and first and second compensation filters. The electrodynamic loudspeaker includes a voice coil arranged in an air gap of a magnetically permeable structure and a compensation coil wound around a portion of the magnetically permeable structure. The first compensation filter filters an audio input signal to the loudspeaker assembly with a first frequency response to generate a voice coil compensation signal for application to the voice coil. The second compensation filter filters the audio input signal to the loudspeaker assembly with a second frequency response to generate a second compensation signal for application to the compensation coil. The first and second frequency responses, across a predetermined audio frequency range, suppress a time-varying or AC magnetic flux in the air gap caused by voice coil current such that magnetic flux modulation in the air gap of the loudspeaker is suppressed.
摘要翻译：一种具有电动扬声器和第一和第二补偿滤波器的电动扬声器组件。电动扬声器包括布置在导磁结构的气隙中的音圈和缠绕在导磁结构的一部分上的补偿线圈。第一补偿滤波器以第一频率响应对扬声器组件的音频输入信号进行滤波，以产生用于音圈的音圈补偿信号。第二补偿滤波器用第二频率响应将音频输入信号滤波到扬声器组件，以产生用于施加到补偿线圈的第二补偿信号。在预定音频范围内的第一和第二频率响应抑制由音圈电流引起的气隙中的时变或AC磁通，从而抑制扬声器的气隙中的磁通量调制。

4. 发明授权

EP2833648B1 Electrodynamic loudspeaker with conducting elements 有权
标题翻译：电动扬声器与导电元件
公开(公告)号：EP2833648B1
公开(公告)日：2016-04-27
申请号：EP14179579.9
申请日：2014-08-01
申请人： Harman International Industries, Inc.
发明人： Voishvillo, Alexander , Kochendoerfer, Felix
IPC分类号： H04R9/02
CPC分类号： H04R9/02 , H04R9/025 , H04R2209/022

5. 发明公开

EP2978243A1 SPEAKER APPARATUS 有权
标题翻译：扬声器设备
公开(公告)号：EP2978243A1
公开(公告)日：2016-01-27
申请号：EP15170084.6
申请日：2015-06-01
申请人： Alpine Electronics, Inc.
发明人： Yamagami, Masaru , Tada, Arata , Tanabe, Kei
IPC分类号： H04R9/02 , H04R9/06
CPC分类号： H04R7/16 , H04R9/02 , H04R9/025 , H04R2209/022 , H04R2400/11 , H04R2499/13
摘要： To provide a speaker apparatus which can prevent a leaked magnetic field to be attracted from a magnetic field generating unit (20) to a support chassis (10) in a counter-drive method. A support chassis (10) mounted on a sounding side of a speaker apparatus is formed of an iron material, and the support chassis (10) is formed in a shape in which a central supporting part (12) gets closer to a main-body chassis (2). A magnetic field generating unit (20) is fixed to the central supporting part (12) on a side of a recess of the support chassis (10). The support chassis (10) includes a frame part (11), the central supporting part (12), and spoke parts (13). In the spoke part (13), a width dimension D1 of an inner end part is formed narrower than a width dimension D2 of an outer end part. Therefore, a resistance in a case where a magnetic flux passes through the spoke part (13) increases, and the leaked magnetic field is hardly induced from the magnetic field generating unit (20) to the spoke part (13). Therefore, a reduction in a speaker output can be prevented.
摘要翻译：本发明提供一种扬声器装置，该扬声器装置能够防止漏磁场从反磁场驱动方式的磁场产生部（20）向支承底盘（10）吸引。安装在扬声器装置的发声侧上的支撑底座（10）由铁材料形成，支撑底座（10）形成为中央支撑部分（12）靠近主体底盘（2）。磁场产生单元（20）在支撑底座（10）的凹部的一侧固定到中央支撑部分（12）。支撑底架（10）包括框架部分（11），中央支撑部分（12）和辐条部分（13）。在轮辐部分（13）中，内端部分的宽度尺寸D1形成为比外端部分的宽度尺寸D2窄。因此，磁通量通过辐条部13的情况下的电阻增大，从磁场产生部20至轮辐部13难以产生泄漏磁场。因此，可以防止扬声器输出的降低。

6. 发明授权

EP2204048B1 STRUCTURE MAGNETIQUE POUR MOTEUR SANS FER DE HAUT-PARLEUR ELECTRODYNAMIQUE, MOTEURS ET HAUT-PARLEURS 有权转让
标题翻译：磁结构下的无铁电机电子动态扬声器和相关电机和扬声器的
公开(公告)号：EP2204048B1
公开(公告)日：2015-07-22
申请号：EP08836843.6
申请日：2008-09-18
申请人： Orkidia Audio , Université du Maine
发明人： LEMARQUAND, Guy , MERIT, Benoît
IPC分类号： H04R9/06 , H04R9/02
CPC分类号： H04R9/025 , H04R9/06 , H04R2209/022

7. 发明授权

EP2416544B1 Electromagnetic Shielding and an Acoustic Chamber for a Microphone in a Mobile Electronic Device 有权转让
标题翻译：电磁屏蔽和麦克风的声室中的移动电子设备
公开(公告)号：EP2416544B1
公开(公告)日：2015-04-29
申请号：EP10172125.6
申请日：2010-08-06
申请人： BlackBerry Limited
发明人： Edeler, Wolfgang
IPC分类号： H04B1/38 , H04B15/00 , H04M1/03 , H05K9/00
CPC分类号： H05K9/0022 , H04B1/3833 , H04B15/00 , H04M1/035 , H04R2209/022

8. 发明公开

EP2833648A2 Electrodynamic loudspeaker with conducting elements 有权
标题翻译： Elektrodynamischer Lautsprecher mit leitenden Elementen
公开(公告)号：EP2833648A2
公开(公告)日：2015-02-04
申请号：EP14179579.9
申请日：2014-08-01
申请人： Harman International Industries, Inc.
发明人： Voishvillo, Alexander , Kochendoerfer, Felix
IPC分类号： H04R9/02
CPC分类号： H04R9/02 , H04R9/025 , H04R2209/022
摘要： A loudspeaker includes a motor assembly including a magnet having a first face and a second face, a back plate abutting the magnet first face, a pole piece centrally disposed with respect to the back plate and extending beyond the magnet second face, and a top plate concentrically disposed with respect to the pole piece and extending beyond the magnet second face. A non-magnetic conducting frame is attached to the top plate, a non-magnetic conducting cap is disposed within the motor assembly and encircling the pole piece, a first non-magnetic conducting ring is disposed within the motor assembly and encircling the pole piece, and at least one second non-magnetic conducting ring is disposed within the motor assembly and abutting the back plate.
摘要翻译：扬声器包括电动机组件，其包括具有第一面和第二面的磁体，邻接磁体第一面的背板，相对于背板中心设置并延伸超过磁体第二面的极片，以及顶板相对于极片同心地设置并延伸超过磁体第二面。非磁性导电框架安装在顶板上，非磁性导电帽设置在电机组件内并环绕极片，第一非磁性导电环设置在电机组件内并环绕极片，并且至少一个第二非磁性导电环设置在马达组件内并邻接该背板。

9. 发明公开

EP2687021A4 BONE CONDUCTION DEVICE INCLUDING A BALANCED ELECTROMAGNETIC ACTUATOR HAVING RADIAL AND AXIAL AIR GAPS 有权
标题翻译：与径向和轴向空气柱均衡器电磁机构BONE管理设备
公开(公告)号：EP2687021A4
公开(公告)日：2014-08-13
申请号：EP12757250
申请日：2012-03-13
申请人： COCHLEAR LTD
发明人： ASNES KRISTIAN
IPC分类号： H04R9/02 , H04R9/06 , H04R25/00
CPC分类号： H04R25/606 , H04R1/46 , H04R9/025 , H04R9/027 , H04R9/066 , H04R2209/022 , H04R2460/13
摘要： A bone conduction device configured to couple to an abutment of an anchor system anchored to a recipient's skull. The bone conduction device includes a vibrating electromagnetic actuator configured to vibrate in response to sound signals received by the bone conduction device, and a coupling apparatus configured to attach the bone conduction device to the abutment so as to impart to the recipient's skull vibrations generated by the vibrating electromagnetic actuator. The vibrating electromagnetic actuator includes a bobbin assembly and a counterweight assembly. Two axial air gaps are located between the bobbin assembly and the counterweight assembly and two radial air gaps are located between the bobbin assembly and the counterweight assembly. No substantial amount of the dynamic magnetic flux passes through the radial air gaps.
摘要翻译：骨传导装置构造成联接到在锚定到接受者的头骨的锚定系统的基台。骨传导装置包括配置为响应于声音由骨传导装置接收到的信号而振动的振动电磁致动器，并且配置为将所述骨传导装置连接到支座，以赋予由所产生的接受者的头骨的振动的耦合装置振动电磁致动器。振动电磁致动器包括一个线圈架组件和配重组件。两个轴向气隙位于线轴组件和配重组件和两个径向空气间隙位于所述筒管组件和配重组件之间。动态磁通没有大量穿过径向空气间隙。

10. 发明公开

EP2638705A4 A MAGNETIC SHIELDING APPARATUS 失效转让
标题翻译：磁屏蔽装置
公开(公告)号：EP2638705A4
公开(公告)日：2014-04-23
申请号：EP10859417
申请日：2010-11-12
申请人： NOKIA CORP
发明人： KUIVALAINEN JANI SAMULI , SLOTTE BENEDICT THOMAS
IPC分类号： H04R1/02 , H05K9/00
CPC分类号： H05K9/00 , H04R1/02 , H04R1/023 , H04R2209/022

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