SOUND GENERATOR, SOUND GENERATION DEVICE, AND ELECTRONIC DEVICE
    1.
    发明公开
    SOUND GENERATOR, SOUND GENERATION DEVICE, AND ELECTRONIC DEVICE 有权
    声音发生器,发声装置和电子装置

    公开(公告)号:EP2887694A1

    公开(公告)日:2015-06-24

    申请号:EP13827751.2

    申请日:2013-04-30

    IPC分类号: H04R7/04 H04R1/28 H04R17/00

    摘要: An object is to achieve excellent sound pressure frequency characteristics. To achieve such an object, an acoustic generator (1) according to one embodiment includes a piezoelectric element (exciter) (5), a vibrating portion (3a), and a plurality of dampers (8). The piezoelectric element (5) receives an input of an electrical signal and is caused to vibrate. The piezoelectric element (5) is mounted on the vibrating portion (3a), and the vibrating portion (3a) is caused to vibrate by the vibration of the piezoelectric element (5). The dampers (8) are integrated with the vibrating portion (3a). The dampers (8) are asymmetrically provided with respect to an axis of symmetry of a shape delineated by the outline of the vibrating portion (3a), in a plan view of the vibrating portion (3a) from a side on which the piezoelectric element (5) is mounted.

    摘要翻译: 目标是实现优异的声压频率特性。 为了实现这样的目的,根据一个实施例的声音发生器(1)包括压电元件(激励器)(5),振动部分(3a)和多个阻尼器(8)。 压电元件(5)接收电信号的输入并引起振动。 压电元件(5)安装在振动部分(3a)上,振动部分(3a)通过压电元件(5)的振动而振动。 阻尼器(8)与振动部分(3a)结合成一体。 阻尼器(8)相对于由振动部分(3a)的轮廓描绘的形状的对称轴线非对称地设置,在振动部分(3a)从压电元件(3a) 5)被安装。

    ACOUSTIC GENERATOR, ACOUSTIC GENERATION DEVICE, AND ELECTRONIC APPARATUS
    5.
    发明公开
    ACOUSTIC GENERATOR, ACOUSTIC GENERATION DEVICE, AND ELECTRONIC APPARATUS 审中-公开
    KLANGGENERATOR,KLANGERZEUGUNGSVORRICHTUNG ELEKTRONISCHE VORRICHTUNG

    公开(公告)号:EP2739068A1

    公开(公告)日:2014-06-04

    申请号:EP13828515.0

    申请日:2013-06-28

    摘要: The problem is to reduce variations of sound pressure in the sound pressure frequency characteristics. To solve the problem, an acoustic generator includes a film (3) that is a supporting plate; a frame member (5) that is provided on the outer circumference of the film (3); a piezoelectric element (1) that is provided on the film (3) within a frame of the frame member (5); and a resin layer (20) that is provided on the film (3) within the frame of the frame member (5), and the resin layer (20) including an air bubble (8). By the air bubble (8), a decrease in the sound pressure is prevented, peaks and dips in the frequency characteristics of sound pressure are reduced, and high-quality sounds are generated.

    摘要翻译: 问题在于降低声压频率特性中声压的变化。 为了解决这个问题,声发生器包括作为支撑板的膜(3) 设置在所述膜(3)的外周上的框架构件(5); 压电元件(1),设置在所述框架构件(5)的框架内的所述薄膜(3)上; 以及设置在框架构件(5)的框架内的膜(3)上的树脂层(20)和包括气泡(8)的树脂层(20)。 通过气泡(8),防止声压降低,声压频率特性的峰值和下降降低,产生高质量的声音。

    ULTRASOUND EMISSION DEVICE AND ULTRASOUND APPARATUS

    公开(公告)号:EP3851164A1

    公开(公告)日:2021-07-21

    申请号:EP19878433.2

    申请日:2019-10-18

    IPC分类号: A61N7/02 A61B8/14 H04R17/00

    摘要: An ultrasound emission device includes a generation part which generates an ultrasonic wave emitted to an object side, and a bag in which a liquid is sealed so that the liquid is located on the object side relative to the generation part. The generation part includes a piezoelectric element which generates vibration generating the ultrasonic wave. The piezoelectric element includes a first surface facing the object side and a second surface facing an opposite side to the object side. The piezoelectric element includes, between the first surface and the second surface, a piezoelectric layer which extends along the first surface and the second surface, and a pair of electrodes which are superposed on two surfaces of the piezoelectric layer. The piezoelectric element flexurally deforms so that the first surface and the second surface flex to a same side as each other. The first surface is exposed to the inside of the bag so as to contact the liquid. The second surface is isolated from the liquid and is in contact with a gas.

    ACOUSTIC GENERATOR, ACOUSTIC GENERATION DEVICE, AND ELECTRONIC APPARATUS
    8.
    发明公开
    ACOUSTIC GENERATOR, ACOUSTIC GENERATION DEVICE, AND ELECTRONIC APPARATUS 有权
    声学发生器,声学发生装置和电子设备

    公开(公告)号:EP2884765A1

    公开(公告)日:2015-06-17

    申请号:EP13827226.5

    申请日:2013-05-31

    摘要: An object is to provide an acoustic generator with excellent sound pressure frequency characteristics. To achieve such an object, an acoustic generator (1) according to one embodiment includes a piezoelectric element (exciter) (5), a vibrating body (3a), a frame (support) (2), and a damper (8). The piezoelectric element (5) receives an input of an electrical signal and is caused to vibrate. The piezoelectric element (5) is mounted on the vibrating body (3a), and the vibrating body (3a) is caused to vibrate by the vibration of the piezoelectric element (5). The frame (2) supports the vibrating body (3a). The damper (8) is provided contacting with both of a pair of two adjacent portions with different stiffnesses in a plan view.

    摘要翻译: 目的是提供具有优异的声压频率特性的声音发生器。 为了实现这样的目的,根据一个实施例的声音发生器(1)包括压电元件(激励器)(5),振动体(3a),框架(支撑件)(2)和阻尼器(8)。 压电元件(5)接收电信号的输入并引起振动。 压电元件(5)安装在振动体(3a)上,通过压电元件(5)的振动使振动体(3a)振动。 框架(2)支撑振动体(3a)。 阻尼器(8)在平面图中设置为与不同刚度的一对两个相邻部分中的两个接触。