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    • 43. 发明授权
    • Piezoelectric acoustic transducer
    • 压电声换能器
    • US08989412B2
    • 2015-03-24
    • US13055315
    • 2010-05-07
    • Akiko FujiseToshiyuki Matsumura
    • Akiko FujiseToshiyuki Matsumura
    • H04R25/00H04R1/00H01L41/00H04R17/00H04R1/28H04R7/20
    • H04R17/00H04R1/288H04R7/20H04R2499/11H04R2499/15
    • A piezoelectric acoustic transducer (1) of the present invention includes a lower frame (78), a lower speaker circuit (20), an upper frame (77), an upper speaker circuit (10), and a surround (76). The upper speaker circuit (10) has a piezoelectric diaphragm (14) in which piezoelectric elements (16, 17), each having a structure that flat plate electrodes are disposed on top and bottom of a piezoelectric member, are mounted on top and bottom surfaces of a board (15). The lower speaker circuit (20) has a piezoelectric diaphragm (24) in which piezoelectric elements (26, 27), each having the same structure, are mounted on a top surface and a bottom surface of a board (25). The piezoelectric diaphragms (14, 24) are coupled to each other via coupling members (74, 75). At an application of a voltage, the piezoelectric diaphragms (14, 24) are caused to curve in directions opposite to each other. Having this structure, the piezoelectric acoustic transducer (1) has an increased displacement in a thickness direction thereof, and thereby achieving high quality sound with space-saving.
    • 本发明的压电声换能器(1)包括下框架(78),下扬声器电路(20),上框架(77),上扬声器电路(10)和环绕(76)。 上扬声器电路(10)具有压电振膜(14),其中压电元件(16,17)安装在压电元件的顶部和底部上,平板电极设置在压电元件的顶部和底部 的董事会(15)。 下扬声器电路(20)具有压电振动膜(24),其中具有相同结构的压电元件(26,27)安装在板(25)的顶表面和底表面上。 压电隔膜(14,24)通过联接构件(74,75)彼此连接。 在施加电压时,使压电振动膜(14,24)在彼此相反的方向上弯曲。 具有这种结构,压电声换能器(1)在其厚度方向上具有增加的位移,从而实现高质量的声音,节省空间。
    • 46. 发明申请
    • PIEZOELECTRIC ACOUSTIC TRANSDUCER
    • 压电声波传感器
    • US20120057730A1
    • 2012-03-08
    • US13055315
    • 2010-05-07
    • Akiko FujiseToshiyuki Matsumura
    • Akiko FujiseToshiyuki Matsumura
    • H04R17/00
    • H04R17/00H04R1/288H04R7/20H04R2499/11H04R2499/15
    • A piezoelectric acoustic transducer (1) of the present invention includes a lower frame (78), a lower speaker circuit (20), an upper frame (77), an upper speaker circuit (10), and a surround (76). The upper speaker circuit (10) has a piezoelectric diaphragm (14) in which piezoelectric elements (16, 17), each having a structure that flat plate electrodes are disposed on top and bottom of a piezoelectric member, are mounted on top and bottom surfaces of a board (15). The lower speaker circuit (20) has a piezoelectric diaphragm (24) in which piezoelectric elements (26, 27), each having the same structure, are mounted on a top surface and a bottom surface of a board (25). The piezoelectric diaphragms (14, 24) are coupled to each other via coupling members (74, 75). At an application of a voltage, the piezoelectric diaphragms (14, 24) are caused to curve in directions opposite to each other. Having this structure, the piezoelectric acoustic transducer (1) has an increased displacement in a thickness direction thereof, and thereby achieving high quality sound with space-saving.
    • 本发明的压电声换能器(1)包括下框架(78),下扬声器电路(20),上框架(77),上扬声器电路(10)和环绕(76)。 上扬声器电路(10)具有压电振膜(14),其中压电元件(16,17)安装在压电元件的顶部和底部上,平板电极设置在压电元件的顶部和底部 的董事会(15)。 下扬声器电路(20)具有压电振动膜(24),其中具有相同结构的压电元件(26,27)安装在板(25)的顶表面和底表面上。 压电隔膜(14,24)通过联接构件(74,75)彼此连接。 在施加电压时,使压电振动膜(14,24)在彼此相反的方向上弯曲。 具有这种结构,压电声换能器(1)在其厚度方向上具有增加的位移,从而实现高质量的声音,节省空间。
    • 47. 发明申请
    • PIEZOELECTRIC ACOUSTIC TRANSDUCER
    • 压电声波传感器
    • US20120057728A1
    • 2012-03-08
    • US13265084
    • 2011-02-22
    • Akiko FujiseToshiyuki Matsumura
    • Akiko FujiseToshiyuki Matsumura
    • H04R17/00
    • H04R17/00H04R7/06
    • A piezoelectric speaker (100) includes: a chassis (110) having a wall surface including an opening; a plurality of diaphragms including at least a first piezoelectric diaphragm and second piezoelectric diaphragms (120, 130a, 130b) which vibrate in phases opposite to each other when a voltage is applied; and a joint member (140a, 140b) which connects the first and second piezoelectric diaphragms (120, 130a, 130b) in a positional relationship such that the diaphragms are located at positions different from each other in a thickness direction, and one of the diaphragms is provided, in the opening of the chassis (110), to have one surface facing an outside of the chassis (110) and an other surface facing an inside of the chassis (110), and functions as a radiation plate which radiates a sound wave by vibrating at an amplitude generated by synthesizing amplitudes of the first and second piezoelectric diaphragms (120, 130a, 130b).
    • 压电扬声器(100)包括:具有包括开口的壁面的底架(110) 多个膜片,当施加电压时,至少包括第一压电膜片和第二压电膜片(120,130a,130b),所述第一压电膜片和第二压电膜片相互相反地振动; 以及连接构件(140a,140b),其以第一和第二压电膜片(120,130a,130b)的间隔连接,使得所述膜片位于厚度方向上彼此不同的位置,并且所述隔膜 在所述底盘(110)的开口部中设置有面向所述底架(110)的外侧的一个面和面向所述底盘(110)内侧的另一表面,并且作为辐射板发挥声音的功能 在通过合成第一和第二压电振膜(120,130a,130b)的振幅产生的振幅振动的波。
    • 49. 发明授权
    • Sound absorbing structure
    • 吸音结构
    • US07743880B2
    • 2010-06-29
    • US11885500
    • 2006-03-30
    • Toshiyuki MatsumuraShuji Saiki
    • Toshiyuki MatsumuraShuji Saiki
    • A47B81/06
    • E01F8/0011B60R13/08B61D17/185E01F8/007E04B1/86E04B2001/8433E04B2001/8452G10K11/172
    • A sound absorbing structure includes a housing having a front face, and a side face which is provided perpendicularly around at least a part of an edge portion of the front face; a gas adsorption material for physically adsorbing gas in an interior space delimited by the front face and the side face of the housing, which gas adsorption material is placed in the interior space; sealing element for sealing the gas adsorption material from outside thereof; and an acoustic connection section for functioning as an acoustic mass so as to acoustically connect an exterior space and the interior space of the housing, which acoustic connection section is provided in at least one of the front face and the side face.
    • 吸音结构包括具有前表面的壳体和垂直于前表面的边缘部分的至少一部分设置的侧面; 用于在由壳体的前表面和侧面限定的内部空间中物理吸附气体的气体吸附材料,该气体吸附材料被放置在内部空间中; 密封元件,用于从其外部密封气体吸附材料; 以及用于声学质量的声学连接部分,以便将外部空间和壳体的内部空间声学连接,该声学连接部分设置在前表面和侧面中的至少一个中。