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    • 5. 发明授权
    • Vacuum cleaner and suction nozzle body thereof cross reference to related application
    • 吸尘器和吸嘴本体参照相关应用
    • US06282749B1
    • 2001-09-04
    • US09542001
    • 2000-04-03
    • Taiji TajimaShigesaburou KomatsuShigenori SatouToshiya ShinozakiYukiji IwaseMasao SunagawaWataru YamamotoSusumu Satou
    • Taiji TajimaShigesaburou KomatsuShigenori SatouToshiya ShinozakiYukiji IwaseMasao SunagawaWataru YamamotoSusumu Satou
    • A47L536
    • A47L9/0488A47L9/04
    • A vacuum cleaner having a vacuum cleaner main body, an electric blower motor provided in the vacuum cleaner main body, a dust collection part provided in the vacuum cleaner main body, a suction nozzle body for communicating with the dust collection part, an impeller having a rotary axis provided in an interior portion of the suction nozzle body and driven by a suction force which is generated by said electric blower motor. At least one of a rotation brush member and a rotation blade member is included in the suction nozzle body and an opening portion of the suction nozzle body is opposed to a surface to be subjected to cleaning, a suction inlet port for the suction nozzle body is provided for sucking air from an outside portion and is located separately from the opening portion of the suction nozzle body. The suction inlet port is provided so as to direct air which is sucked from the outside portion in a direction transverse to the rotary axis of the impeller and an air flow passage is formed in the suction nozzle body so that a part of the air which is sucked from the suction inlet port initially impinges on the impeller to rotate the impeller and then is passed to a region of the surface to be subjected to cleaning and is sucked into the vacuum cleaner main body.
    • 具有真空吸尘器主体的真空吸尘器,设在真空吸尘器主体内的电动鼓风机马达,设在真空吸尘器主体内的集尘部,与集尘部连通的吸嘴主体, 旋转轴设置在吸嘴本体的内部并由所述电动鼓风电动机产生的吸力驱动。 旋转刷构件和旋转叶片构件中的至少一个包括在吸嘴体中,并且吸嘴体的开口部分与要进行清洁的表面相对,用于吸嘴体的吸入口为 用于从外部抽吸空气并且与吸嘴主体的开口部分分开设置。 吸入口设置成引导从外侧部分沿与叶轮的旋转轴线横切的方向吸入的空气,并且在吸嘴主体中形成空气流路,使空气的一部分为 最初吸入吸入口的吸入口叶轮上旋转叶轮,然后通过进入清洁表面的区域并吸入吸尘器主体。
    • 6. 发明授权
    • Control circuit for a stepping motor
    • 步进电机控制电路
    • US4661754A
    • 1987-04-28
    • US732696
    • 1985-05-10
    • Taiji TajimaShigemitsu Higuchi
    • Taiji TajimaShigemitsu Higuchi
    • H02P8/00H02P8/14H02P8/18
    • H02P8/14H02P8/18
    • A control circuit comprises a first counter for counting up stepping pulses and counting down the number of steps of a stepping motor, a memory for storing therein a drive timing of the stepping motor, a variable timer for converting a data in the memory to a real time, a second counter for counting up an output signal of the variable timer when a count of the second counter is smaller than a count of the first counter and counting down the output signal of the variable timer when the count of the second counter is equal to or larger than the count of the first counter, and a drive circuit for driving the stepping motor in accordance with the output signal of the variable timer.Signals to set the first counter in the count-up mode and the count-down mode are synchronized with two clock signals having the same frequency and different phases. The control circuit drives the stepping motor immediately after the control pulse signal was applied to accelerate or decelerate the stepping motor so that a velocity pattern of the stepping motor is controlled in a pedestal pattern.
    • 控制电路包括:第一计数器,用于对步进脉冲进行计数和对步进电机的步数进行计数;存储器,用于存储步进电机的驱动定时;可变定时器,用于将存储器中的数据转换为真实的 当第二计数器的计数小于第一计数器的计数并且当第二计数器的计数相等时对可变定时器的输出信号进行计数,计数可变定时器的输出信号的第二计数器 达到或大于第一计数器的计数,以及用于根据可变定时器的输出信号驱动步进电机的驱动电路。 用于将第一个计数器置于递增模式和递减模式的信号与具有相同频率和不同相位的两个时钟信号同步。 控制电路在施加控制脉冲信号之后立即驱动步进电机,以加速或减速步进电机,使得步进电机的速度模式被控制在基座图案中。