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    • 3. 发明授权
    • Resistor device for controlling a rotational speed of a motor
    • 用于控制电机转速的电阻器件
    • US5563570A
    • 1996-10-08
    • US270178
    • 1994-07-01
    • Woo Y. Lee
    • Woo Y. Lee
    • H01C1/084H01H37/76
    • H01C1/084H01H2037/763H01H37/761
    • The present invention relates to a resistor device for controlling a rotational speed of a motor which has no directional property and provides a convenient setting. A resistance unit is positioned which includes at least four connecting points connected to connecting terminals at an upper predetermined position of a housing, and a heat sink having at least four supporting legs is provided to form passing paths open in all directions on the housing. Also, the resistance unit is adhered on the heat sink through an insulating layer, a second heat sink corresponding to the first heat sink is adhered on the resistance unit through the insulating layer, and short-circuit means having a soldered portion to be fused at a predetermined temperature upon an overloading of the motor is provided between the resistance unit and any one terminal. Accordingly, the present invention enables the resistor device to be freely positioned without a directional property and prevents heat by the short-circuit means from disturbing the resistor device.
    • 本发明涉及一种用于控制电动机转速的电阻装置,该电动机没有方向性并提供方便的设置。 电阻单元被定位成包括在外壳的上部预定位置处连接到连接端子的至少四个连接点,并且设置具有至少四个支撑腿的散热器,以形成在壳体上的所有方向上开放的通路。 此外,电阻单元通过绝缘层粘附在散热片上,与第一散热器相对应的第二散热器通过绝缘层粘附在电阻单元上,短路装置具有焊接部分以熔化在 在电阻单元和任何一个端子之间设置电动机过载时的预定温度。 因此,本发明使得电阻器件能够在没有方向性的情况下自由定位,并且防止短路装置的热量干扰电阻器件。
    • 5. 发明授权
    • Resistor device for controlling a rotational speed of a motor
    • 用于控制电机转速的电阻器件
    • US5550527A
    • 1996-08-27
    • US270129
    • 1994-07-01
    • Woo Y. Lee
    • Woo Y. Lee
    • H01C13/00H01H37/76H02P7/08
    • H02P7/08H01C13/00H01H2037/763H01H37/761
    • A resistor device for controlling a rotational speed of a resistance unit and an open-circuit means. A receiving recess is provided to any one side surface of a heat sink vertically affixed to a top surface plate of a housing. A resistance unit, which is protected by a film and made of metal material forming a resistor circuit for gradually controlling the rotational speed of a motor, is received within the recess in the heat sink and connected to a terminal. An open-circuit means, having a soldered portion which is fused at a predetermined temperature upon an overload of the motor, is provided at a predetermined distance between the resistance unit and a terminal.
    • 一种用于控制电阻单元和开路装置的转速的电阻器件。 在垂直固定在壳体顶面板上的散热器的任何一个侧表面上都设有一个接收凹槽。 由薄膜保护并由金属材料形成的用于逐渐控制电动机的转速的电阻电路的电阻单元被接纳在散热器的凹槽内并连接到端子。 在电阻单元和端子之间的预定距离处设置有在电动机过载时在预定温度下熔化的焊接部分的开路装置。
    • 10. 发明授权
    • Process for manufacturing Alnico system permanent magnet
    • 制造铝镍钴永磁体的方法
    • US5520748A
    • 1996-05-28
    • US397180
    • 1995-03-09
    • Choong J. YangSeung D. ChoiWoo Y. LeeYoung G. Son
    • Choong J. YangSeung D. ChoiWoo Y. LeeYoung G. Son
    • B22F9/10C22C33/02C22C38/00C22C38/16H01F1/08H01F41/02H01F1/03
    • C22C33/0292H01F1/086
    • A process for manufacturing an Alnico system permanent magnet is disclosed in which the alloy powder of the Alnico system having the proper composition is manufactured through a rapid solidification process, so that the crushability and the formability should be superior, the sintered density should be high, and the magnetic properties should be excellent, as well as cheap in its manufacturing cost and simple in its manufacturing process. An alloy of Alnico system is subjected to a rapid solidification with a spinning solidifier wheel speed of 6-40 m/sec, thereby manufacturing a microcrystalline rapidly solidified powder. The powder is ground into a finer powder, and then a press-forming is carried out. Then a sintering is carried out at a temperature of 1100.degree.-1350.degree. C. for 0.5-4 hours. Then based on a single heat treatment, an external magnetizing force of 1-15 kOe is applied in a temperature range of 600.degree.-1000.degree. C., thereby carrying out a heat treatment under a magnetizing force. Thereafter, an aging heat treatment is carried out at a temperature of 500.degree.-700.degree. C. for 1-10 hours, thereby magnetizing the formed body.
    • 公开了一种制造Alnico系永磁体的方法,其中通过快速固化方法制造具有适当成分的Alnico系统的合金粉末,使得可压碎性和成形性应优于烧结密度, 磁性能优异,制造成本低,制造工艺简单。 AlNico系统的合金以6-40m / sec的纺丝凝固轮速度进行快速凝固,从而制造微晶快速凝固的粉末。 将粉末研磨成更细的粉末,然后进行压制成型。 然后在1100〜-1350℃的温度下进行烧结0.5-4小时。 然后基于单次热处理,在600℃-1000℃的温度范围内施加1-15kOe的外部磁化力,从而在磁化力下进行热处理。 此后,在500〜700℃的温度下进行时效热处理1-10小时,从而使成形体磁化。