公开(公告)号：EP1998351B1

公开(公告)日：2013-05-22

申请号：EP06729352.2

申请日：2006-03-17

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： MARUYAMA, Akihiko

IPC分类号： H01H33/38 ,  H01F7/18 ,  H01H33/66

CPC分类号： H01F7/1844 ,  G01R31/06 ,  H01H11/0062 ,  H01H33/6662 ,  H01H47/32

公开(公告)号：EP1998351A1

公开(公告)日：2008-12-03

申请号：EP06729352.2

申请日：2006-03-17

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： MARUYAMA, Akihiko

IPC分类号： H01H33/38 ,  H01F7/18 ,  H01H33/66

CPC分类号： H01F7/1844 ,  G01R31/06 ,  H01H11/0062 ,  H01H33/6662 ,  H01H47/32

摘要： An object of the present invention is to obtain a high-accuracy condition-monitoring device of low cost and small size, and to obtain a switch-control device provided with such condition-monitoring device. A condition-monitoring device of the invention, which is provided in an electromagnetic actuator including a stationary core, a moving core, magnet coils; and a permanent magnet, monitors condition of the electromagnetic actuator. The condition-monitoring device comprises a current measurement means for measuring a current flowing through the magnet coils; magnetic-flux measurement means for measuring magnetic flux inside the stationary core; a calculation means for generating a calculated waveform by performing a calculation using a current waveform representing a time variation of an output signal from the current measurement means and a magnetic-flux waveform representing a time variation of an output signal from the magnetic-flux measurement means; and a condition determination means, by finding a distinctive point on the calculated waveform, for determining conditions of the electromagnetic actuator based on information on the distinctive point.

摘要翻译： 本发明的目的是获得低成本，小尺寸的高精度状态监视装置，并且获得设置有这种状态监视装置的开关控制装置。 本发明的状态监测装置，其设置在电磁致动器中，该电磁致动器包括固定铁芯，移动铁心，电磁线圈; 和永久磁铁，用于监视电磁执行器的状态。 所述状态监视装置包括用于测量流过所述磁体线圈的电流的电流测量装置; 用于测量固定芯内磁通量的磁通测量装置; 计算装置，用于通过使用表示来自当前测量装置的输出信号的时间变化的电流波形和表示来自磁通量测量装置的输出信号的时间变化的磁通量波形执行计算来产生计算波形 ; 以及条件确定装置，通过在所计算的波形上找到一个不同的点，用于基于关于该特征点的信息来确定电磁致动器的状态。