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    • 5. 发明授权
    • Microspeaker and method of designing the same
    • 微型扬声器及其设计方法
    • US08050445B2
    • 2011-11-01
    • US11826097
    • 2007-07-12
    • Woo-Chul KimYoon-Young Kim
    • Woo-Chul KimYoon-Young Kim
    • H04R11/02
    • H04R9/025H04R2499/11
    • Provided are a microspeaker and a method of designing the same. The microspeaker includes a first permanent magnet and a second permanent magnet disposed on the first permanent magnet with a predetermined gap therebetween, the first and second permanent magnets having opposite magnetization directions; a third permanent magnet and a fourth permanent magnet disposed on the third permanent magnet with a predetermined gap therebetween, the third and fourth permanent magnets being disposed next to the first and second permanent magnets, respectively, with an air gap therebetween; a yoke interposed between the first and second permanent magnets and between the third and fourth permanent magnets; a voice coil inserted into the air gap; and a vibrating diaphragm attached to an end of the voice coil and forming a sound field according to the movement of the voice coil, wherein the first and third permanent magnets have opposite magnetization directions, and the second and fourth permanent magnets have opposite magnetization directions.
    • 提供一种微型扬声器及其设计方法。 所述微型扬声器包括第一永久磁铁和第二永久磁铁,所述第一永久磁铁和所述第二永磁体之间具有预定的间隙,所述第一和第二永磁体具有相反的磁化方向; 第三永久磁铁和第四永久磁铁,其间分别具有预定的间隙,所述第三和第四永久磁体分别设置在所述第一永久磁铁和所述第二永久磁铁之间,其间具有气隙; 插入在第一和第二永磁体之间以及第三和第四永磁体之间的磁轭; 插入气隙中的音圈; 以及振动膜,其附接到所述音圈的端部并且根据所述音圈的移动形成声场,其中所述第一和第三永磁体具有相反的磁化方向,并且所述第二和第四永磁体具有相反的磁化方向。
    • 7. 发明申请
    • Microspeaker and method of designing the same
    • 微型扬声器及其设计方法
    • US20080170745A1
    • 2008-07-17
    • US11826097
    • 2007-07-12
    • Woo-Chul KimYoon-Young Kim
    • Woo-Chul KimYoon-Young Kim
    • H04R25/00
    • H04R9/025H04R2499/11
    • Provided are a microspeaker and a method of designing the same. The microspeaker includes a first permanent magnet and a second permanent magnet disposed on the first permanent magnet with a predetermined gap therebetween, the first and second permanent magnets having opposite magnetization directions; a third permanent magnet and a fourth permanent magnet disposed on the third permanent magnet with a predetermined gap therebetween, the third and fourth permanent magnets being disposed next to the first and second permanent magnets, respectively, with an air gap therebetween; a yoke interposed between the first and second permanent magnets and between the third and fourth permanent magnets; a voice coil inserted into the air gap; and a vibrating diaphragm attached to an end of the voice coil and forming a sound field according to the movement of the voice coil, wherein the first and third permanent magnets have opposite magnetization directions, and the second and fourth permanent magnets have opposite magnetization directions.
    • 提供一种微型扬声器及其设计方法。 所述微型扬声器包括第一永久磁铁和第二永久磁铁,所述第一永久磁铁和所述第二永磁体之间具有预定的间隙,所述第一和第二永磁体具有相反的磁化方向; 第三永久磁铁和第四永久磁铁,其间分别具有预定的间隙,所述第三和第四永久磁体分别设置在所述第一永久磁铁和所述第二永久磁铁之间,其间具有气隙; 插入在第一和第二永磁体之间以及第三和第四永磁体之间的磁轭; 插入气隙中的音圈; 以及振动膜,其附接到所述音圈的端部并且根据所述音圈的移动形成声场,其中所述第一和第三永磁体具有相反的磁化方向,并且所述第二和第四永磁体具有相反的磁化方向。
    • 8. 发明申请
    • Method of designing rotary thermal actuator and rotary thermal actuator
    • 设计旋转热致动器和旋转热致动器的方法
    • US20080073997A1
    • 2008-03-27
    • US11822340
    • 2007-07-05
    • Seok HeoYoon Young Kim
    • Seok HeoYoon Young Kim
    • H02N10/00
    • H02N11/006F03G7/06
    • Provided are a method of designing a rotary thermal actuator and a rotary thermal actuator. The method includes setting the shape of an entire design domain; dividing the entire design domain into a predetermined number of domains which are symmetrical to one another in a rotational direction from the center of the entire design domain; designing the domains using a topology optimization method which uses a driving stage disposed at the center of the entire design domain, an initial shape of thermal expansion members which connect electrodes disposed at outer boundaries of the entire design domain, material properties of the thermal expansion members, and boundary conditions of the domains; and designing the entire design domain such that the designed domains are symmetrical to one another in the rotational direction.
    • 提供了一种设计旋转热致动器和旋转热致动器的方法。 该方法包括设置整个设计域的形状; 将整个设计域划分成从整个设计域的中心沿旋转方向彼此对称的预定数量的域; 使用使用设置在整个设计域的中心的驱动级的拓扑优化方法来设计域,连接设置在整个设计域的外边界处的电极的热膨胀构件的初始形状,热膨胀构件的材料特性 ,和域的边界条件; 并且设计整个设计域,使得设计的域在旋转方向上彼此对称。