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公开(公告)号：US4647803A
公开(公告)日：1987-03-03
申请号：US753801
申请日：1985-07-08
CPC分类号： H02K5/24 , H02K1/187 , H02K11/01 , H02K29/08 , H02K5/1735
摘要： Electric motor with a substantially cylindrical air gap between the stator and the rotor, the stator being fitted to a bearing support for the rotor shaft bearing. In order to reduce noise emissions, the stator is connected to the bearing support by means of an elastic damper and the stator and bearing support are separated from one another by an air gap adjacent at least part of their facing faces.
摘要翻译： 在定子和转子之间具有大致圆柱形气隙的电动马达，定子被安装到用于转子轴轴承的轴承支撑件上。 为了减少噪声排放，定子通过弹性阻尼器连接到轴承座上，并且定子和轴承座通过与其相对面的至少一部分相邻的气隙彼此分开。
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公开(公告)号：USRE33813E
公开(公告)日：1992-02-04
申请号：US319276
申请日：1989-03-03
CPC分类号： H02K5/24 , H02K1/187 , H02K11/01 , H02K29/08 , H02K5/1735
摘要： Electric motor with a substantially cylindrical air gap between the stator and the rotor, the stator being fitted to a bearing support for the rotor shaft bearing. In order to reduce noise emissions, the stator is connected to the bearing support by means of an elastic damper and the stator and bearing support are separated from one another by an air gap adjacent at least part of their facing faces.
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公开(公告)号：US4651241A
公开(公告)日：1987-03-17
申请号：US529018
申请日：1983-09-02
CPC分类号： G11B33/121 , G11B15/1808 , G11B19/20 , G11B19/28 , G11B5/5526
摘要： Device for a drive for storage media for the generation of at least one index pulse per revolution of a rotating element with a generator, which, during operation, for each revolution of the rotating component, generates at least one signal pulse that alternates once between two polarities, and with an evaluating circuit activated by these alternating signal pulses to generate the index pulses at its output. The evaluating circuit includes a comparator with asymmetrical hysteresis with two inputs and one output, between the two inputs of which comparator the output signal of the generator lies, and the hysteresis of which is tuned to the generator output signal such that the comparator output sharply changes from a first to a second potential when the amplitude of the signal pulse at a preset polarity exceeds a preset switching voltage value, and sharply returns from the second to the first potential when the signal pulse passes through its zero crossing from the preset to the opposite polarity.
摘要翻译： 用于存储介质的驱动器的装置，用于在具有发电机的旋转元件的每转一周产生至少一个索引脉冲，其在操作期间对于旋转部件的每次旋转产生至少一个在两个之间交替一次的信号脉冲 极性，以及由这些交变信号脉冲激活的评估电路，以在其输出端产生索引脉冲。 评估电路包括具有两个输入和一个输出的具有不对称滞后的比较器，其两个输入之间的比较器产生器的输出信号位于其上，其滞后被调谐到发生器输出信号，使得比较器输出急剧变化 当预设极性的信号脉冲的幅度超过预设的开关电压值时，从第一电位到第二电位，并且当信号脉冲从预置到相反的过零点时从第二电位急剧返回到第一电位 极性。
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