公开(公告)号：US20020185987A1

公开(公告)日：2002-12-12

申请号：US10145141

申请日：2002-05-15

申请人： Toshiba TEC Kabushiki Kaisha

发明人： Hiroyuki Kushida ,  Tsuyoshi Takanose

IPC分类号： G05B011/28

CPC分类号： H02P6/20

摘要： The present invention aims to first start the rotation of a rotor according to a first sequence for causing currents to flow in armature windings of three phases U, V and W upon startup of a three-phase brushless motor to thereby reduce an inrush current at the startup thereof, thus making it possible to lighten an electrical load on each electronic part used for control. Also the present invention aims to perform switching to an original second sequence for causing currents to flow in the armature windings of the two phases U and V, V and W or W and U of the three-phase brushless motor after the startup of the three-phase brushless motor to thereby provide a period for an open state of each terminal and make dead band control or the like unnecessary, thus making control of the three-phase brushless motor easier.

摘要翻译： 本发明的目的是首先启动转子的旋转，该转子根据用于在三相无刷电动机起动时使三相U，V和W的电枢绕组中的电流流动的第一顺序，从而减小在 从而能够减轻用于控制的各电子部件的电负荷。 此外，本发明的目的是在三相无刷电动机的启动之后，切换到原始的第二序列，以使电流流入三相无刷电动机的两相U，V，V，W或W或W和U的电枢绕组 从而为每个端子的打开状态提供一个周期，并且不需要死区控制等，从而使得三相无刷电动机的控制更容易。

公开(公告)号：US20020175646A1

公开(公告)日：2002-11-28

申请号：US10101101

申请日：2002-03-20

申请人： Toshiba TEC Kabushiki Kaisha

发明人： Hiroyuki Kushida ,  Tomokazu Yoshioka ,  Tsuyoshi Takanose ,  Takuya Ogishima

IPC分类号： H02P001/00 ,  H02P001/22 ,  H02P001/40 ,  H02P003/00 ,  H02P003/20 ,  H02P005/00 ,  H02P007/00

CPC分类号： A47L9/2889 ,  A47L9/2805 ,  A47L9/2842 ,  A47L9/2857 ,  A47L9/2884 ,  H02J7/0065

摘要： An electric vacuum cleaner according to the present invention boosts a voltage supplied to a motor-driven blower through the use of a boost converter circuit with a DC power supply as a drive source to thereby increase the output of the motor-driven blower so as to enhance dust suction power. The present invention provides, as operation modes of such an electric vacuum cleaner, an operation mode for boosting power inputted to the motor-driven blower with the boost converter circuit to thereby increase dust suction power, and an operation mode for deactivating the boost converter circuit. Consequently, the boost converter circuit is used to enable the boosting of the power inputted to the motor-driven blower only when really required, and a loss in power produced due to the mounting of the boost converter circuit can be reduced. Thus, the service hour per charge for a battery can be set to a level equivalent to an electric vacuum cleaner equipped with no boost converter circuit.

摘要翻译： 根据本发明的电动吸尘器通过使用具有直流电源的升压转换器电路作为驱动源来提升供给电动机的鼓风机的电压，从而增加电动鼓风机的输出，从而 增强吸尘力。 作为这种电动吸尘器的动作模式，本发明提供了利用升压转换电路提升输入到电动鼓风机的功率的动作模式，从而增加吸尘功率，以及用于使升压转换电路无效化的动作模式 。 因此，升压转换器电路仅在真正需要时才能使输入到电动鼓风机的电力升压，并且可以降低由于升压转换器电路的安装而产生的功率损失。 因此，电池的每次充电的服务时间可以设定为与配备有升压转换器电路的电动吸尘器相当的水平。

公开(公告)号：US20020056169A1

公开(公告)日：2002-05-16

申请号：US09940434

申请日：2001-08-29

申请人： Toshiba TEC Kabushiki Kaisha

发明人： Hiroyuki Kushida ,  Tsuyoshi Takanose

IPC分类号： A47L009/28

CPC分类号： H02M7/53873 ,  H02P6/085 ,  H02P6/34

摘要： An electric vacuum cleaner including a motor-driven blower driven by an inverter circuit. The inverter circuit has a plurality of switching elements. The inverter circuit AC-drives a motor-driven blower according to periodic switching between the switching elements. The periodic switching is based on the detected value of physical quantities related to the electric vacuum cleaner. The electric vacuum cleaner can, in the highest operation mode, undergo a sudden fluid load variation. The electric vacuum cleaner is able to limit, by way of the inverter circuit, the unpleasant sound produced by the vacuum cleaner due to the change in rotation velocity of a rotor of a motor of the vacuum cleaner.

摘要翻译： 一种电动吸尘器，包括由逆变器电路驱动的电动鼓风机。 逆变器电路具有多个开关元件。 逆变器电路根据开关元件之间的周期性切换来交流驱动电动鼓风机。 周期性切换基于与电动吸尘器相关的物理量的检测值。 电动吸尘器可以在最高运行模式下经受突然的流体负载变化。 电动吸尘器能够通过逆变器电路限制由于真空吸尘器的电动机的转子的转速的变化而由真空吸尘器产生的令人不愉快的声音。