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    • 1. 发明授权
    • Circuit for driving linear compressor
    • 线性压缩机驱动电路
    • US06565327B2
    • 2003-05-20
    • US09984050
    • 2001-10-26
    • Jae Yoo YooJae Chun LeeMin Kyu HwangChel Woong Lee
    • Jae Yoo YooJae Chun LeeMin Kyu HwangChel Woong Lee
    • F04B4906
    • F04B35/045F04B49/065F04B2201/0206F04B2203/0401F04B2203/0402
    • Disclosed is a circuit for driving a linear compressor enabling to reduce a cost in detecting voltage and current applied to a linear compressor by decreasing the number of precision resistors. The present invention includes a linear compressor controlling a cooling capacity by varying a stroke through an up-and-down straight-line motion of a piston, an electric circuit part supplying the linear compressor with voltage and current in accordance with a switching signal of an AC switching device through a current detect resistor and the AC switching device wherein a ground terminal is connected between the current detect resistor and linear compressor, a voltage detection unit detecting the voltage applied to the linear compressor by taking the ground terminal as a reference and outputting the detected voltage, a stroke calculation unit receiving the detected current and voltage to calculate the stroke, a speed or an acceleration speed of the linear compressor, and a microcomputer inputting a switching signal for controlling the voltage applied to the linear compressor into the switching device to make a present stroke follow an initial stroke reference.
    • 公开了一种用于驱动线性压缩机的电路,其能够通过减少精密电阻器的数量来降低检测施加到线性压缩机的电压和电流的成本。 本发明包括线性压缩机,其通过活塞的上下直线运动改变行程来控制冷却能力,电路部分根据一个活塞的切换信号向线性压缩机提供电压和电流 交流开关装置,通过电流检测电阻器和交流开关装置,其中接地端子连接在电流检测电阻器和线性压缩机之间,电压检测单元通过以接地端子作为参考来检测施加到线性压缩机的电压,并输出 所述检测电压,行程计算单元,接收所检测的电流和电压以计算所述行程,所述线性压缩机的速度或加速度;以及微型计算机,将用于控制施加到所述线性压缩机的电压的开关信号输入到所述开关装置 使当前行程跟随初始笔画参考。
    • 2. 发明授权
    • Stroke control apparatus of reciprocating compressor and method thereof
    • 往复式压缩机的行程控制装置及其方法
    • US06851934B2
    • 2005-02-08
    • US10128495
    • 2002-04-24
    • Jae-Yoo YooChel Woong LeeMin-Kyu Hwang
    • Jae-Yoo YooChel Woong LeeMin-Kyu Hwang
    • F04B49/06F04B35/04H02P25/04H02P27/06
    • F04B35/045F04B2203/0401F04B2203/0402F04B2203/0409
    • In a stroke control apparatus of a reciprocating compressor and a method thereof, the stroke control apparatus of the reciprocating compressor includes a reciprocating compressor, a current detecting unit for detecting a current flowing in a motor of the reciprocating compressor, a stroke detecting unit for detecting a piston stroke by using a voltage and a current applied to the motor of the reciprocating compressor, a phase difference detecting unit for detecting a phase difference by receiving the piston stroke from the stroke detecting unit and the motor current from the current detecting unit, an operational frequency determining unit for determining an operational frequency corresponded to an operation region according to the detected phase difference, a frequency/stroke storing unit for storing a piston stroke value by the determined operational frequency, a reference stroke value determining unit for determining a reference stroke value corresponded to the determined operational frequency by using the stroke value pre-stored in the frequency/stroke storing unit, a control unit for comparing the reference stroke value with a present piston stroke value after a certain time point and outputting a stroke control signal according to the comparison result and an inverter for varying an operational frequency and a voltage applied to the motor of the reciprocating compressor according to the stroke control signal of the control unit.
    • 在往复式压缩机的行程控制装置及其方法中,往复式压缩机的行程控制装置包括往复式压缩机,用于检测在往复式压缩机的电动机中流动的电流的电流检测单元,用于检测往复式压缩机的电动机的行程检测单元 通过使用施加到往复式压缩机的电动机的电压和电流的活塞行程;相位差检测单元,用于通过从行程检测单元接收活塞行程和从电流检测单元检测电动机电流来检测相位差; 操作频率确定单元,用于根据检测到的相位差确定对应于操作区域的操作频率;频率/行程存储单元,用于存储活塞行程值除以所确定的操作频率;基准行程值确定单元,用于确定参考行程 值对应于确定的操作 通过使用预先存储在频率/行程存储单元中的行程值,控制单元,用于将参考行程值与一定时间点之后的当前活塞行程值进行比较,并根据比较结果输出行程控制信号;以及 用于根据控制单元的行程控制信号改变施加到往复式压缩机的电机的工作频率和电压的逆变器。
    • 7. 发明授权
    • Apparatus and method for controlling operation of compressor
    • 控制压缩机运行的装置和方法
    • US06815922B2
    • 2004-11-09
    • US10406307
    • 2003-04-04
    • Jae Yoo YooChel Woong LeeJi Won SungHyuk Lee
    • Jae Yoo YooChel Woong LeeJi Won SungHyuk Lee
    • G05D23275
    • F04B35/045F04B49/06F04B2201/0206F04B2203/0401F04B2203/0402
    • An apparatus and a method are disclosed for controlling operation of a compressor capable of greatly decreasing a stroke estimation error of a compressor and controlling operation of the compressor accurately and precisely. The method includes calculating a first stroke estimation value of a compressor on the basis of current, a voltage applied to a motor of a compressor and preset parameters of the motor. Detecting a counter electromotive force of the motor and calculating a second stroke estimation value of the compressor on the basis of the detected counter electromotive force value. Determining a new stroke reference value by comparing the first stroke estimation value with the second stroke estimation value, adding or subtracting a stroke compensation value corresponding to the comparison result to or from a preset stroke reference value, and controlling a stroke of the compressor by varying a voltage applied to the motor on the basis of the determined stroke reference value and the first stroke estimation value.
    • 公开了一种用于控制能够大大降低压缩机的行程估计误差并且精确且准确地控制压缩机的操作的压缩机的操作的装置和方法。 该方法包括基于电流,施加到压缩机的电动机的电压和电动机的预设参数来计算压缩机的第一冲程估计值。 检测电动机的反电动势,并基于检测到的反电动势值计算压缩机的第二行程估计值。 通过将第一笔划估计值与第二笔划估计值进行比较来确定新笔画参考值,将对应于比较结果的笔画补偿值与预设笔画参考值相加或减去,并通过改变压缩器的行程来控制压缩机的笔划 基于所确定的冲程基准值和第一冲程估计值,施加到马达的电压。