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    • 2. 发明申请
    • Speaker
    • 扬声器
    • US20090296979A1
    • 2009-12-03
    • US12457133
    • 2009-06-02
    • Tomohiko KamimuraHideo Yuasa
    • Tomohiko KamimuraHideo Yuasa
    • H04R9/06
    • H04R9/06H04R9/02
    • The invention provides a speaker comprising: a magnetic circuit 3; a vibration system 4 in which a diaphragm 22 is attached to a voice coil 21; and a frame 2 which supports the magnetic circuit 3 and the vibration system 4. The voice coil 21 is placed in a magnetic gap 17. By taking advantage of the characteristics of a plastic magnet that it can be easily processed into a desired shape, the magnetic circuit 3 is configured by: a plastic magnet 16 having a T-like section shape; and a yoke 10 which is continuously disposed in a bottom portion side and periphery of the plastic magnet 16. The number of components of the magnetic circuit, which conventionally has the three-piece structure, is reduced, so that the mass productivity of a small and thin speaker can be enhanced.
    • 本发明提供一种扬声器,包括:磁路3; 其中隔膜22附接到音圈21的振动系统4; 以及支撑磁路3和振动系统4的框架2.音圈21被放置在磁隙17中。通过利用可以容易地加工成所需形状的塑料磁体的特性, 磁路3由以下部分构成:具有T形截面形状的塑料磁体16; 以及连续地设置在塑料磁体16的底部侧和周边的磁轭10.通常具有三片式结构的磁路的组件数量减少,使得小的生产率 并且可以增强薄型扬声器。
    • 3. 发明授权
    • Electroacoustic transducing device
    • 电声转换装置
    • US09055359B2
    • 2015-06-09
    • US12450981
    • 2009-02-09
    • Tomohiko KamimuraHideo YuasaJinlong RenHidenori MotonagaKatsunari Fujita
    • Tomohiko KamimuraHideo YuasaJinlong RenHidenori MotonagaKatsunari Fujita
    • H04R9/02H04R31/00H04R9/06
    • H04R9/025H04R9/06H04R31/00H04R2209/024H04R2400/11
    • An electroacoustic transducing device such as a small speaker or receiver used in a portable telephone or the like. A yoke-integral frame is formed by a simple process, and the number of components and production steps for producing the electroacoustic transducing device are reduced, thereby improving productivity. The transducing device having: a magnetic circuit having a yoke, a magnet, and a pole piece; a vibration system having a diaphragm and a voice coil; and a frame which holds the magnetic circuit and the vibration system. The voice coil is placed in a magnetic gap, and the frame is formed by performing a pressing process on one sheet-like metal material into a bottomed tubular shape, and at least two places of the bottom plate being cut and raised to form a bottom frame-like yoke portion, thereby being formed into a yoke-integral type.
    • 一种电声换能装置,例如在便携式电话机等中使用的小扬声器或接收器。 通过简单的方法形成磁轭一体式框架,并且减少了用于制造电声换能装置的部件数量和制造步骤,从而提高了生产率。 该转换装置具有:具有轭,磁体和极片的磁路; 具有隔膜和音圈的振动系统; 以及保持磁路和振动系统的框架。 将音圈放置在磁隙中,通过对一片片状金属材料进行压制而成为有底的筒状而形成框架,并且底板的至少两个位置被切割并升高以形成底部 框状的轭部,由此形成为磁轭一体型。
    • 6. 发明授权
    • Speaker
    • 扬声器
    • US08041070B2
    • 2011-10-18
    • US12457132
    • 2009-06-02
    • Tomohiko KamimuraHideo Yuasa
    • Tomohiko KamimuraHideo Yuasa
    • H04R9/06
    • H04R9/10
    • The invention relates to a small speaker. A speaker 1 comprises: a magnetic circuit 3 having a yoke 7, a magnet 15, and a pole piece 16; a vibration system 4 having a voice coil 18 and diaphragm 19 which are joined to each other through a voice coil bobbin 23; and a frame 2 which holds the magnetic circuit 3 and the vibration system. The voice coil is placed in a magnetic gap 17. In the speaker, dampers 26 which are extended respectively from a plurality of places of an opening side end portion of the voice coil bobbin are disposed, and tip end portions of said dampers are bonded and fixed to the frame. The voice coil bobbin is supported from the lower side. The resistance to input is improved without impairing the thinness of the speaker 1, and while suppressing the increase of the production cost.
    • 本发明涉及一种小扬声器。 扬声器1包括:具有轭7的磁路3,磁体15和极片16; 振动系统4,其具有通过音圈架23彼此连接的音圈18和隔膜19; 以及保持磁路3和振动系统的框架2。 音圈被放置在磁隙17中。在扬声器中,设置分别从音圈筒管的开口侧端部的多个位置延伸的阻尼器26,并且所述阻尼器的前端部分接合, 固定在框架上。 音圈筒管从下侧支撑。 改善了输入阻抗,而不损害扬声器1的薄度,同时抑制了生产成本的增加。
    • 9. 发明申请
    • Speaker
    • 扬声器
    • US20090296978A1
    • 2009-12-03
    • US12457132
    • 2009-06-02
    • Tomohiko KamimuraHideo Yuasa
    • Tomohiko KamimuraHideo Yuasa
    • H04R9/06
    • H04R9/10
    • The invention relates to a small speaker. A speaker 1 comprises: a magnetic circuit 3 having a yoke 7, a magnet 15, and a pole piece 16; a vibration system 4 having a voice coil 18 and diaphragm 19 which are joined to each other through a voice coil bobbin 23; and a frame 2 which holds the magnetic circuit 3 and the vibration system. The voice coil is placed in a magnetic gap 17. In the speaker, dampers 26 which are extended respectively from a plurality of places of an opening side end portion of the voice coil bobbin are disposed, and tip end portions of said dampers are bonded and fixed to the frame. The voice coil bobbin is supported from the lower side. The resistance to input is improved without impairing the thinness of the speaker 1, and while suppressing the increase of the production cost.
    • 本发明涉及一种小扬声器。 扬声器1包括:具有轭7的磁路3,磁体15和极片16; 振动系统4,其具有通过音圈架23彼此连接的音圈18和隔膜19; 以及保持磁路3和振动系统的框架2。 音圈被放置在磁隙17中。在扬声器中,设置分别从音圈筒管的开口侧端部的多个位置延伸的阻尼器26,并且所述阻尼器的前端部分接合, 固定在框架上。 音圈筒管从下侧支撑。 改善了输入阻抗,而不损害扬声器1的薄度,同时抑制了生产成本的增加。