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    • 65. 发明授权
    • Long-throw acoustic transducer
    • 长扬声换能器
    • US09332351B2
    • 2016-05-03
    • US13764682
    • 2013-02-11
    • Apple Inc.
    • Scott P. PorterChristopher WilkRuchir M. Dave
    • H04R1/00H04R9/02H04R9/06H04R11/02
    • H04R9/025H04R9/06H04R9/066H04R11/02H04R2209/022H04R2209/041H04R2400/03
    • An acoustic transducer includes a housing, which may be a circular cylinder or may have a rectangular cross-section. Two permanent magnets that closely fit the inside of the housing are joined by a linkage having a high magnetic permeability to form a piston that is inserted into the housing. Two pole coils surround the housing with each coil adjacent one of the permanent magnets. The coils are arranged to cause the piston to oscillate within the housing and emit sound waves when coupled to an electrical signal. One end of the housing may be closed except for a barometric leak. A third permanent magnet or a spring may provide a restoring force that centers the piston between the coils when the piston is not subjected to other forces. One of the permanent magnets on the piston may include a vent passage.
    • 声换能器包括壳体,其可以是圆柱体或者可以具有矩形横截面。 紧密配合壳体内部的两个永磁体通过具有高磁导率的连接件相连,以形成插入壳体中的活塞。 两个极线圈围绕着壳体,每个线圈与一个永磁体相邻。 线圈被布置成使得活塞在壳体内振荡并且当耦合到电信号时发出声波。 除气压泄漏外,外壳的一端也可能是封闭的。 第三永磁体或弹簧可以提供恢复力,当活塞不受其他力时,将活塞中心在线圈之间。 活塞上的一个永磁体可以包括通气通道。
    • 67. 发明申请
    • Double-Voice Coil Moving-Coil Loudspeaker
    • 双声道线圈移动线圈扬声器
    • US20160088397A1
    • 2016-03-24
    • US14890780
    • 2013-04-13
    • Wenjin SHA
    • Wenjin ShaYongming Wang
    • H04R9/02H04R9/06H04R9/04
    • H04R9/025H04R9/045H04R9/06H04R9/063H04R2209/041
    • A double-voice coil moving-coil loudspeaker comprises a bracket. A U-shaped cup with a circular groove is fixed in the bracket. A vibrating diaphragm is fixed on the bracket at the position of the U-shaped cup. A large voice coil and a small voice coil distributed in a concentric circle are arranged on the vibrating diaphragm. A circular large magnet and a circular small magnet distributed in a concentric circle are arranged in the U-shaped cup. A circular big washer and a circular small washer are respectively arranged on an upper surface of the large magnet and the small magnet. The big voice coil and the small voice coil are respectively arranged in a gap formed by the U-shaped cup and the big washer and a small gap formed between the U-shaped cup and the small washer. The U-shaped cup is provided with air vents. The air vents of the U-shaped cup are communicated with a gap between the big washer and the smaller washer and a gap between the big magnet and the small magnet. The invention has the benefit of improving sound quality while reducing the cost of manufacturing.
    • 双音圈动圈式扬声器包括支架。 具有圆形槽的U形杯固定在支架中。 振动膜片在U形杯的位置固定在支架上。 在振动膜上布置有分布在同心圆中的大音圈和小音圈。 在U形杯中布置有分布在同心圆中的圆形大磁铁和圆形小磁体。 在大磁铁和小磁铁的上表面分别设有圆形大垫圈和圆形小垫圈。 大音圈和小音圈分别布置在由U形杯和大垫圈形成的间隙中,并且在U形杯和小垫圈之间形成小间隙。 U型杯配有通风口。 U型杯的通风口与大垫圈和较小的垫圈之间的间隙以及大磁铁和小磁体之间的间隙连通。 本发明有利于提高声音质量,同时降低制造成本。
    • 68. 发明申请
    • MULTI-DRIVER TRANSDUCER HAVING SYMMETRICAL MAGNETIC CIRCUIT AND SYMMETRICAL COIL CIRCUIT
    • 具有对称磁电路和对称线圈电路的多驱动传感器
    • US20150271605A1
    • 2015-09-24
    • US14416025
    • 2012-07-20
    • Fan Zhang
    • Fan Zhang
    • H04R9/06H04R9/02H04R9/04
    • H04R9/063H04R9/025H04R9/04H04R9/043H04R2209/041
    • A multi-driver transducer having symmetrical magnetic circuits and symmetrical coil circuits, wherein one or more pieces of circular or annular partitions made of a non-magnetic material are used to bond two or more sets of dual magnetic gap and dual coil driver units (01 or 02) into one integrated magnetic core. Four or more coaxial isodiametric annular magnetic gaps are formed between the inner circumferential face or outer circumferential face of one or two tubular magnetic yokes embedded in an open-end tubular thin wall of the bracket and the vertical circumferential face of an upper pole plate and a lower pole plate of the magnetic core, four or more coaxial and isodiametric coils are inserted in the four or more coaxial and isodiametric annular magnetic gaps, and the winding direction, connection manner, and necessary technical features of the coils are governed; thus, the multi-driver transducer having one or more pairs of mutually-repelling magnets, symmetrical magnetic circuits, and symmetrical coil circuits is constituted. Back electromotive force and inductance acquired via induction by the transducer during the working process are mutually offset. The transducer has resistive load features or near-resistive load features, and has super-high sensitivity, high resolution, and high-fidelity quality.
    • 具有对称磁路和对称线圈电路的多驱动传感器,其中使用由非磁性材料制成的一个或多个圆形或环形隔板,以将两个或更多组双磁隙和双线圈驱动单元(01 或02)转换成一个集成磁芯。 四个或更多个同轴等径环形磁隙形成在一个或两个管状磁轭的内周面或外周面之间,该两个管状磁轭嵌入支架的开放式管状薄壁和上极板的垂直圆周面, 磁芯的下极板,四个或更多个同轴和等直线圈插入四个或更多个同轴和等直径的环形磁隙中,并且控制线圈的卷绕方向,连接方式和必要的技术特征; 因此,构成了具有一对或多对互斥磁体,对称磁路和对称线圈电路的多驱动传感器。 在工作过程中通过换能器感应获得的反电动势和电感相互抵消。 传感器具有电阻负载特性或接近电阻负载特性,具有超高灵敏度,高分辨率和高保真质量。