公开(公告)号：US4565998A

公开(公告)日：1986-01-21

申请号：US466753

申请日：1983-02-15

申请人： Nobuhiko Tsuji ,  Keijiro Nakamura ,  Masanori Iike

发明人： Nobuhiko Tsuji ,  Keijiro Nakamura ,  Masanori Iike

IPC分类号： G01R31/02 ,  H02H7/06 ,  H02K11/04 ,  G08B21/00

CPC分类号： G01R31/02 ,  H02H7/065 ,  H02K11/042

摘要： A diode failure detecting device in a rotary rectifier having fuses provided respectively for phases and connected in series to rectifying diodes. Light emitting diode circuits in one embodiment are connected in parallel respectively to the fuses which are arranged on the peripheral surface of a rotor. The LED's preferably emit light in different emission spectra when the respective fuses are blown out. An optical fiber sensor is provided on the side of a stator, for detecting when the LED's emit light and a photo-electric converter converts optical signals applied thereto through the optical fiber sensor into electrical signals through optical spectral discrimination separately according to the phases of the rectifier. A logic circuit determines the flow of over-current in the rectifying diodes from an output of the photo-electric converter. In a second embodiment, flags on the fuses are optically scanned to determine the presence of a blow fuse. By determining the absence of a pulse or determining pulse width, the detection of a flag is made. If the reflectivities of the flags vary, identification of a particular blown fuse can be made.

摘要翻译： 一种具有熔断器的旋转整流器中的二极管故障检测装置，分别为相和串联连接到整流二极管。 在一个实施例中的发光二极管电路分别并联连接到布置在转子的外周表面上的保险丝。 当各个保险丝被吹出时，LED优选地以不同的发射光谱发射光。 光纤传感器设置在定子一侧，用于检测LED何时发光，光电转换器通过光纤传感器将通过光纤传感器施加到其上的光信号分别转换为电信号，并根据 整流器 逻辑电路从光电转换器的输出确定整流二极管中的过电流。 在第二实施例中，对熔丝上的标记进行光学扫描，以确定熔丝保险丝的存在。 通过确定不存在脉冲或确定脉冲宽度，进行标志的检测。 如果标志的反射率变化，则可以识别特定熔断的保险丝。