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    • 6. 发明授权
    • Multiple fan speed control system for preventing overload at start-up
    • 多风扇转速控制系统,用于防止起动过载
    • US08348625B2
    • 2013-01-08
    • US12595875
    • 2008-04-22
    • Toshiaki SatoHiroshi DoumaeSumio Kagimura
    • Toshiaki SatoHiroshi DoumaeSumio Kagimura
    • F04B49/00H02P5/00
    • F04D27/004F04D25/166F24F1/38F24F1/68F24F11/0001F24F11/77
    • A fan control system includes first and second adjacent fans, first and second motors configured to rotate the first and second fans, and a control unit configured to control rotational speeds of the first and second motors in order to control rotational speeds of the first and second fans. The first and second motors are energized such that the rotational speeds of the first and second fans reach target rotational speeds prior to increasing the rotational speeds of the first and second fans to required rotational speeds. The target rotational speeds are lower than the required rotational speeds. The first and second motors are energized such that the rotational speeds of the first and second fans reach the required rotational speeds after the rotational speeds of the first and second fans reach the target rotational speeds.
    • 风扇控制系统包括第一和第二相邻风扇,第一和第二电动机被配置为旋转第一和第二风扇;以及控制单元,其被配置成控制第一和第二电动机的转速,以便控制第一和第二风扇的转速 粉丝 第一和第二电动机通电,使得在将第一和第二风扇的转速提高到所需的转速之前,第一和第二风扇的转速达到目标转速。 目标转速低于要求转速。 第一和第二电动机通电,使得在第一和第二风扇的转速达到目标转速之后,第一和第二风扇的转速达到所需的转速。
    • 7. 发明授权
    • Earth leakage detection method
    • 地漏检测方法
    • US08477465B2
    • 2013-07-02
    • US12740602
    • 2008-09-09
    • Hiroshi DoumaeHitoshi Hashimoto
    • Hiroshi DoumaeHitoshi Hashimoto
    • H02H3/00H02H7/00
    • H02H3/347G01R31/025H02H1/04
    • It is judged whether the abnormal current is due to the electric leakage or not by a detection step detecting the abnormal current by the leakage current detection board and comparing a threshold value of predetermined items stored in a storing unit and actual values corresponding to the items at the time of when a compressor is stopped by detecting the abnormal current in the detection step. Specifically, the abnormal current is recognized as the electric leakage to be displayed on a display unit when at least one of the operating time at the time of detecting the abnormal current, the inner pressure of a motor, and a discharge pipe temperature is lower than the corresponding threshold value.
    • 通过由漏电流检测板检测到异常电流的检测步骤来判断异常电流是否是由于泄漏,并将存储在存储单元中的预定项目的阈值和对应于项目的实际值进行比较 在检测步骤中通过检测异常电流来停止压缩机的时间。 具体而言,当检测异常电流,电动机的内部压力和排出管温度的至少一个操作时间低于显示单元时,异常电流被识别为要显示在显示单元上的漏电 相应的阈值。