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    • 7. 发明授权
    • Electric apparatus with a controlled turntable
    • 带有受控转盘的电器
    • US4939333A
    • 1990-07-03
    • US407651
    • 1989-09-15
    • Haruo SakaiMasayuki SakaiSatoshi Koide
    • Haruo SakaiMasayuki SakaiSatoshi Koide
    • H05B6/68H05B6/80
    • H05B6/6482H05B6/6411H05B6/66
    • Disclosed is an electric apparatus comprising a housing with a door, a turntable arranged in the housing for rotating an object, a synchronous motor for driving the turntable, and a control portion for controllling the driving of the synchronous motor, the control portion having apparatus for storing the time required for the turntable to rotate once, apparatus for determining whether or not a time period which is approximately a natural number multiple of the time required for the turntable to rotate once, has elapsed since initiation of turntable rotation, and apparatus for stopping an operation for the rotation of the turntable on the basis of the determination that time, which is approximately a natural number multiple of the time required for one rotation of the turntable, has elapsed. When the synchronous motor is energized during only the time which is approximately a natural number multiple of the time required for the turntable to rotate once, the turntable stops after it rotates approximately a natural number of times. Accordingly, the object placed on the turntable is stopped in the same position within the housing as that at the time when the rotation of the turntable was initiated, so that the object can be easily taken out.
    • 公开了一种电气设备,包括具有门的壳体,设置在壳体中用于旋转物体的转台,用于驱动转台的同步电动机和用于控制同步电动机的驱动的控制部分,控制部分具有用于 存储转盘旋转一次所需的时间,用于确定转盘旋转一次所需时间大约为自然数倍的时间段的装置,从转盘旋转开始以来已经过去,以及用于停止的装置 基于转动台的一次旋转所需的时间的大致自然数倍的时间的确定,旋转台的旋转操作已经过去。 当同步电动机仅在大约是转台旋转一次所需时间的自然数倍的时间内通电时,转盘在其旋转大约自然次数之后停止。 因此,放置在转台上的物体在壳体内与转台旋转开始时相同的位置停止,从而可以容易地取出物体。