GROUND FAULT DETECTING CIRCUIT AND POWER CONVERTING DEVICE INCLUDING THE SAME
    1.
    发明申请
    GROUND FAULT DETECTING CIRCUIT AND POWER CONVERTING DEVICE INCLUDING THE SAME 有权
    接地故障检测电路和功率转换装置,包括它们

    公开(公告)号:US20150130379A1

    公开(公告)日:2015-05-14

    申请号:US14390118

    申请日:2012-04-09

    摘要: In the ground fault detecting circuit, one terminals of first to third resistance elements are connected to first to third AC lines, respectively, the other terminals of the first to third resistance elements are commonly connected to one terminal of a fourth resistance element, and the other terminal of the fourth resistance element is connected to a line of a ground voltage. On the basis of a voltage across the terminals of the fourth resistance element, the ground fault detecting circuit detects whether a ground fault has occurred or not. Since a current does not flow through the fourth resistance element in the normal state and flows through the fourth resistance element after the occurrence of a ground fault, it is possible to detect the occurrence of the ground fault at a high accuracy.

    摘要翻译: 在接地故障检测电路中,第一至第三电阻元件的一个端子分别连接到第一至第三交流线路,第一至第三电阻元件的另一个端子共同连接到第四电阻元件的一个端子, 第四电阻元件的另一端子连接到接地电压线。 基于第四电阻元件的端子两端的电压,接地故障检测电路检测接地故障是否发生。 由于在正常状态下电流不流过第四电阻元件,并且在发生接地故障之后流过第四电阻元件,因此可以高精度地检测接地故障的发生。

    Encoder structure
    3.
    发明申请
    Encoder structure 审中-公开
    编码器结构

    公开(公告)号:US20050116707A1

    公开(公告)日:2005-06-02

    申请号:US10994266

    申请日:2004-11-23

    申请人: Yasuaki Matsumoto

    发明人: Yasuaki Matsumoto

    摘要: An encoder structure includes a sensor head unit 6 installed in an irrotational part, a rotative magnetic ring unit 4 that is positioned close to the sensor head unit 6 and has a north pole and a south pole arranged alternately on a circumference thereof, and a groove unit 7 formed in at least one of spaces between the north pole and the south pole located on a surface of the magnetic ring unit 4. Thus, deposits such as iron particles are easily drained away with muddy water because a part where the iron particles tend to be accumulated along a magnetic flux functions as a groove-like path. Additionally, accumulated iron particles remain inside the groove unit 7 that is concave shaped. Accordingly, prevention of damage to the sensor head unit 6 is achieved.

    摘要翻译: 编码器结构包括安装在不旋转部分中的传感器头单元6,位于传感器头单元6附近并具有交替设置在其圆周上的北极和南极的旋转磁环单元4, 单元7形成在位于磁环单元4的表面上的北极和南极之间的至少一个空间中。因此,铁颗粒之类的沉积物容易被泥水排出,因为铁颗粒倾向的部分 沿着磁通量积累作为凹槽状路径。 此外,堆积的铁颗粒保留在凹形单元7内,该凹槽单元7是凹形的。 因此,可以防止对传感器头单元6的损坏。

    Pedal supporting structure
    4.
    发明授权
    Pedal supporting structure 有权
    脚踏支撑结构

    公开(公告)号:US06840131B2

    公开(公告)日:2005-01-11

    申请号:US10170705

    申请日:2002-06-14

    摘要: A pedal supporting structure for a vehicle includes a pedal bracket secured to a dash board, a pedal shaft for swingably supporting a pedal arm, a pin member for mounting the pedal shaft on the pedal bracket and a separation member secured to a support beam. An arm section of the separation member has a guide slot capable of a relative displacement of a pin member inserted to the pedal shaft and contacting the slanted surface. The arm section of the separation member has a slanted surface at the middle thereof. When an external force larger than a specified value is applied to a front part of the vehicle, due to the relative displacement between the pedal bracket and the separation member, the pin member comes out of the pedal shaft and as a result the pedal arm is separated from the pedal shaft.

    摘要翻译: 用于车辆的踏板支撑结构包括固定到仪表板的踏板支架,用于可摆动地支撑踏板臂的踏板轴,用于将踏板轴安装在踏板支架上的销构件和固定到支撑梁的分离构件。 分离构件的臂部具有能够插入到踏板轴中并与倾斜面接触的销构件的相对位移的导槽。 分离构件的臂部在其中间具有倾斜表面。 当大于规定值的外力被施加到车辆的前部时,由于踏板支架和分离构件之间的相对位移,销构件从踏板轴离开,因此踏板臂是 与踏板轴分离。

    THYRISTOR STARTER
    5.
    发明申请
    THYRISTOR STARTER 审中-公开
    THYRISTOR启动器

    公开(公告)号:US20150236622A1

    公开(公告)日:2015-08-20

    申请号:US14422520

    申请日:2012-08-29

    IPC分类号: H02P1/52

    摘要: This thyristor starter includes a control angle operation portion including a function or a table showing relation between a rotation speed of a synchronous machine and a phase control angle of an inverter and finding a phase control angle having a value in accordance with the rotation speed of the synchronous machine found by a speed operation portion. The phase control angle varies from a minimum value to a maximum value in accordance with the rotation speed of the synchronous machine, and a rate of increase in phase control angle relative to the rotation speed of the synchronous machine is varied in a plurality of steps in accordance with the rotation speed of the synchronous machine.

    摘要翻译: 该晶闸管起动器包括控制角操作部,该控制角操作部包括表示同步电机的转速与逆变器的相位控制角之间的关系的功能或表,并求出相位控制角,该相位控制角具有与 由速度操作部分发现的同步机。 相位控制角度根据同步电机的转速从最小值到最大值变化,并且相位控制角相对于同步电机的转速的增加率在多个步骤中变化 按照同步电机的转速。