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    • 5. 发明公开
    • 압전 세라믹 변압기 및 이를 이용하여 냉 음극 형광등을구동하기 위한 회로
    • PIEZO-ELECTRIC CERAMIC变压器和电路,用于使用这种变压器驱动冷阴极荧光灯
    • KR1020010045777A
    • 2001-06-05
    • KR1019990049219
    • 1999-11-08
    • (주)동일기연
    • 다노브헨리김영민최문호이병훈홍순길
    • H01F41/00
    • PURPOSE: A piezo-electric ceramic transformer and circuit for driving cold cathode fluorescent lamps using the same is provided to drive the transformer in a full wavelength mode by arranging the driving unit to have two input parts. CONSTITUTION: A piezo-electric ceramic transformer comprises a piezo-electric ceramic plate(210) operating at the full wavelength mode and which is constituted by a single central driving unit and two output units(213,214), wherein the driving unit has two inputs(211,212); four external electrodes(215,216,217,218) arranged at side surfaces of two inputs of the piezo-electric ceramic plate; two sets of internal electrodes(219a,219b,210a,210b) arranged in a multiple layer structure within the two inputs, wherein each layer is connected in parallel alternately to the left external electrodes(215,217) and right external electrodes(216,218); and two output electrodes(221,222) arranged at both ends of two outputs of the piezo-electric ceramic plate.
    • 目的:提供一种用于驱动使用其的冷阴极荧光灯的压电陶瓷变压器和电路,通过将驱动单元布置成具有两个输入部分来以全波长模式驱动变压器。 构成:压电陶瓷变压器包括以全波长模式工作并由单个中央驱动单元和两个输出单元(213,214)构成的压电陶瓷板(210),其中驱动单元具有两个输入( 211212); 布置在压电陶瓷板的两个输入端的侧表面处的四个外部电极(215,216,217,218) 在两个输入内布置成多层结构的两组内部电极(219a,219b,210a,210b),其中每层交替地并联连接到左外部电极(215,217)和右外部电极(216,218); 以及布置在压电陶瓷板的两个输出端的两端的两个输出电极(221,222)。
    • 6. 发明公开
    • 액체 레벨 측정용 초음파 트랜스듀서
    • 用于液位测量的超声波传感器
    • KR1020170108374A
    • 2017-09-27
    • KR1020160032156
    • 2016-03-17
    • (주)동일기연
    • 이덕규김영민
    • G01F23/00G01F23/04
    • G01F23/00G01F23/04G01F23/26
    • 본발명은탱크내부액체의레벨을측정하기위해초음파를생성하고액체의표면에서반사되는반사파를검출하는트랜스듀서에관한것으로서, 상부하우징(110)과하부하우징(120)의결합으로이루어져내부공간을형성하는하우징부(100); 상기하우징부(100)의내부공간에부착되며전기적신호에따라초음파를발생시키고액면에서되돌아온반사파를수신하여전기적신호를발생시키는압전변환소자(200); 및, 일측은상기압전변환소자(200)와연결되고타측은상기하우징부(100)의외부로돌출되어외부회로와상기압전변환소자(200) 사이에서전기적신호를송수신하는단자(300);를포함하여구성되고, 상기상부하우징(110)과하부하우징(120)은수밀성을유지하도록밀봉접합되며, 상기하우징부(100)와상기단자(300) 사이의틈새공간은내화학성절연물충진제(330)로밀봉되어액체가하우징부(100) 내부로침투할수 없는구조인것을특징으로한다.
    • 本发明涉及一种换能器用于产生超声波来测量箱中的液体的水平和检测由液体的表面反射,由上壳体110的反射波,则总和决定超过单元壳体120,内部空间 一个用于形成壳体部分(100)的壳体部分(100); 到外壳构件(100)的内部空间中的附件是根据电信号和接收的反射波从液面返回产生的电信号(200)产生超声波的压电换能器; 并且,用于与所述压电换能器200和令人惊讶的壳体部分100所发送的另一端突出部连接端子300的一侧,并且接收外部电路和压电晶体(200)之间的电信号;其中包括 并且被配置成,上壳体110,以鞍单元壳体120被密封接合,以便保持水密性,在壳体部分100和终端间隙空间是耐化学腐蚀的绝缘材料填料330 300之间 使得液体不能渗透到壳体部件100中。
    • 7. 发明公开
    • 장애물 감지용 초음파 센서
    • 用于感应障碍物的超声波传感器
    • KR1020130019473A
    • 2013-02-27
    • KR1020110081436
    • 2011-08-17
    • 현대자동차주식회사(주)동일기연
    • 오선미손현수최문호김영민
    • G01S3/80G01S5/18
    • PURPOSE: A supersonic wave sensor detecting obstacle is provided to improve the near obstacle detection property by reducing remaining vibration of case by suppressing increase of echo period maximally under severe temperature change. CONSTITUTION: A cylindrical case(11) forms the bottom surface. The piezo ceramic element(12) is adhered to the bottom surface of the case inside. The acoustic absorbing material(13) is located on the piezo ceramic element. The first filler(18) is formed around the piezo ceramic element and the acoustic absorbing material. The temperature compensating capacitor(14) is located on the acoustic absorbing material. The reinforcing substrate(15) is adhered on one side of the temperature compensating capacitor. The second filler(19) surrounds the reinforcing substrate and the temperature compensating capacitor.
    • 目的:提供超声波传感器检测障碍物,以通过在严重的温度变化下最大限度地抑制回波周期的增加来减少情况的剩余振动来改善近障碍物的检测性能。 构成:圆柱形壳体(11)形成底面。 压电陶瓷元件(12)粘附到壳体的内表面。 吸声材料(13)位于压电陶瓷元件上。 第一填料(18)围绕压电陶瓷元件和吸声材料形成。 温度补偿电容器(14)位于吸声材料上。 加强基板(15)粘附在温度补偿电容器的一侧。 第二填料(19)围绕增强基板和温度补偿电容器。