公开(公告)号：US6163469A

公开(公告)日：2000-12-19

申请号：US334642

申请日：1999-06-17

申请人： Hitoshi Yuki

发明人： Hitoshi Yuki

IPC分类号： H02J1/00 ,  G05F1/10 ,  H02H9/00 ,  H02M1/14 ,  H02M7/06 ,  H02M7/12 ,  H02H7/125

CPC分类号： H02H9/001 ,  Y10S323/908

摘要： A rush current limiting device capable of restraining increased power consumption and heat generation caused by resistance for limiting rush current, and effectively limiting rush current caused on any conditions has. A resistance for limiting rush current caused by switching of a power switch between a rectifier diode bridge and a smoothing condenser. A triode AC switch and the relay are provided in parallel with the resistance. The on-operation of a power switch is monitored by the input monitoring circuit, and an triode AC switch is turned on at the zero crossing point of input signals after the on-operation by the zero crossing circuit to short-circuit the resistance. After a delay of the relay due to sensitive time, the relay is turned on by a relay driving circuit, and the triode AC switch is turned on.

摘要翻译： 能够抑制由用于限制冲击电流的电阻引起的增加的功率消耗和发热并且有效地限制在任何条件下引起的冲击电流的冲击电流限制装置。 用于限制在整流二极管桥和平滑电容器之间切换电源开关引起的冲击电流的电阻。 三极管交流开关和继电器与电阻并联提供。 电源开关的通电由输入监控电路监控，三相交流开关在过零电路接通操作后的输入信号过零点处导通，使电阻短路。 继电器由于敏感时间延迟后，继电器由继电器驱动电路导通，三极管交流开关导通。

公开(公告)号：US6065555A

公开(公告)日：2000-05-23

申请号：US48997

申请日：1998-03-27

申请人： Hitoshi Yuki ,  Yoshihisa Hirose

发明人： Hitoshi Yuki ,  Yoshihisa Hirose

IPC分类号： B62B1/18 ,  B60L11/18 ,  B62B5/00 ,  B62D51/04 ,  B62B1/00

CPC分类号： B62B5/0026 ,  B62B1/18 ,  B62B5/0073

摘要： A power-assisted wheelbarrow applies an assisting function using an electric motor. Handle shafts connecting to the rear end portions of two handles are covered with grips which are allowed to move axially relative to the handle shafts. More than one steel balls are fitted between the handle shafts and the grips. At the sides of the grips or the handles, pushing force detecting sensors are disposed for detecting the axial movements of the grips relative to the handle shafts in accordance with the pushing forces applied to the grips. The operation of the electric motor is controlled on the basis of the detected values of the two pushing force detecting sensors. As a result, the assisting force by the electric motor can be effectively applied to the wheel of a manual-push type single-wheeled carrier so that manual labor can be reduced while minimizing the consumption of a battery.

摘要翻译： 电动辅助手推车使用电动马达进行辅助功能。 连接到两个手柄的后端部分的手柄轴被夹持，手柄可以相对于把手轴轴向移动。 在手柄轴和手柄之间安装了多个钢球。 在把手或把手的两侧设置有推力检测传感器，用于根据施加到把手的推力来检测夹具相对于把手轴的轴向移动。 基于两个推力检测传感器的检测值来控制电动机的操作。 结果，可以将电动机的辅助力有效地施加到手动式单轮托架的车轮上，从而可以在最小化电池的消耗的同时减少手工劳动。