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    • 7. 发明授权
    • Drum washing machine
    • 滚筒洗衣机
    • US08196440B2
    • 2012-06-12
    • US10528791
    • 2003-06-26
    • Tsuyoshi HosoitoYoji Okazaki
    • Tsuyoshi HosoitoYoji Okazaki
    • D06F37/00D06F33/00
    • D06F39/003D06F33/02D06F37/203D06F2202/04D06F2202/12
    • The present invention is directed to a drum washing machine. In particular, the drum washing machine includes a rotating tub, wherein the rotating tub has a cylindrical drum having a front formed with a circular opening through which laundry is put into the rotating tub and having a rear that is closed. The drum washing machine further includes a DC brushless motor for generating a driving force for wash, rinse and dehydration operations and a rotor. The drum washing machine further includes a rotational shaft of the motor having a front end directly fixed to the rotating tub and a rear end fixed to a core of the rotor, so that torque developed by the motor is directly transmitted to the rotating tub. A current detector is provided in the drum washing machine for detecting electric current flowing into the motor. A torque control unit is also provided in the drum washing machine for performing a vector control for the motor on the basis of the current detected by the current detector, so that torque developed by the motor is rendered optimum for at least the wash and dehydration operations. A speed control unit for controlling a rotational speed of the motor, based on the current detected by the current detector and a laundry amount determining unit for determining an amount of laundry in the rotating tub, based on a magnitude of an accumulated value of torque current in a period when a rotational speed of the motor is accelerated are also provided in the drum washing machine of the present invention.
    • 本发明涉及一种滚筒洗衣机。 特别地,滚筒洗衣机包括旋转桶,其中旋转桶具有圆筒形滚筒,其具有形成有圆形开口的前部,通过该圆形开口将衣物放入旋转桶中并具有关闭的后部。 滚筒洗衣机还包括用于产生洗涤,冲洗和脱水操作的驱动力的DC无刷电动机和转子。 滚筒洗衣机还包括具有直接固定在旋转桶上的前端的马达的旋转轴和固定在转子的铁芯上的后端,使得由电动机产生的转矩直接传递到旋转桶。 在滚筒洗衣机中设置有电流检测器,用于检测流入马达的电流。 滚筒洗衣机中还设置有一个转矩控制单元,用于根据电流检测器检测的电流进行马达的矢量控制,使马达产生的扭矩至少达到洗涤和脱水操作的最佳水平 。 一种速度控制单元,用于基于由电流检测器检测的电流和用于确定旋转桶中的衣物量的衣物量确定单元,基于转矩电流的累积值的大小来控制电动机的转速 在本发明的滚筒式洗衣机中也设置有马达转速加速的期间。
    • 9. 发明申请
    • EXPOSURE APPARATUS AND EXPOSURE METHOD
    • 曝光装置和曝光方法
    • US20090046262A1
    • 2009-02-19
    • US11817466
    • 2006-03-09
    • Yoji OkazakiHiromi Ishikawa
    • Yoji OkazakiHiromi Ishikawa
    • G03B27/38
    • G03F7/70791G03F7/70275G03F7/70291
    • An exposure apparatus includes a light source for emitting exposure light, a spatial light modulation means for performing spatial light modulation, based on an image signal, on the exposure light, an imaging means for forming an image on a photosensitive material with the exposure light on which spatial light modulation has been performed, and a focus adjustment means for adjusting focus by changing the optical path length of the modulated exposure light when an image is formed on the photosensitive material with the spatially modulated exposure light. The imaging means forms an image with the spatially modulated exposure light only by a substantially rectangular region of the imaging means including the central portion of the imaging means.
    • 曝光装置包括:用于发射曝光的光源;空间光调制装置,用于在曝光光上基于图像信号进行空间光调制;成像装置,用于在曝光光在感光材料上形成图像; 已经执行了空间光调制的焦点调节装置,以及用于通过改变当利用空间调制的曝光光在感光材料上形成图像时调制的曝光光的光路长度来调整焦点的焦点调节装置。 成像装置仅通过包括成像装置的中心部分的成像装置的基本上矩形的区域形成具有空间调制曝光的图像。