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    • 67. 发明授权
    • Phase commutation method of brushless direct current motor
    • 无刷直流电机的相位换向方法
    • US07235941B2
    • 2007-06-26
    • US11240365
    • 2005-10-03
    • Pyeong Ki ParkKoji HamaokaHan Joo YooJeong Ho SeoHun Yub BaeYun Jeong KimKwang Kyo Oh
    • Pyeong Ki ParkKoji HamaokaHan Joo YooJeong Ho SeoHun Yub BaeYun Jeong KimKwang Kyo Oh
    • H02P6/18
    • H02P6/18H02P25/024
    • A BLDC motor phase commutation method is provided, which can correctly detect phase commutation timing and position detection timing of a BLDC motor in a compressor to stabilize rotation and RPM of the compressor, thereby minimizing noise and vibration. When the BLDC motor rotates through a mechanical angle corresponding to one period, the BLDC motor operates according to a first scheme in which operation of the BLDC motor in the first phase commutation section of a period is performed in the same manner as in the last phase commutation section of a period immediately prior to the period. After the BLDC motor switches to sensorless mode, the BLDC motor operates according to a third scheme in which the first phase commutation section of a period has a time interval equal to the average of time intervals of first phase commutation sections of periods prior to the period.
    • 提供一种BLDC电动机相位换向方法,可以正确地检测压缩机中BLDC电动机的相位换向定时和位置检测定时,以稳定压缩机的转速和转速,从而最大限度地降低噪音和振动。 当BLDC电动机以对应于一个周期的机械角度旋转时,BLDC电动机根据第一方案操作,其中以与最后阶段相同的方式执行周期的第一相位换向部分中的BLDC电动机的操作 在该期间之前的期间的换向部分。 在BLDC电动机切换到无传感器模式之后,BLDC电动机根据第三方案操作,其中,周期的第一相位换向部分的时间间隔等于期间之前的周期的第一相位换向部分的时间间隔的平均值 。
    • 68. 发明申请
    • Nano tip and fabrication method of the same
    • 纳米尖端和制造方法相同
    • US20070114457A1
    • 2007-05-24
    • US11506826
    • 2006-08-21
    • Chang-Soo HanJune-Ki Park
    • Chang-Soo HanJune-Ki Park
    • H01J37/08
    • H01J37/073G01Q70/12G01Q70/16H01J2201/30469H01J2237/06341Y10S977/876
    • The present invention relates to a nano tip and a fabrication method of the nano tip that is generally usable in mechanical, physical, and electrical devices for detecting surface signals or chemical signals, or is usable for a source scanning energy beam. The fabrication method of a nano tip according to the present invention includes providing a supporting holder that is fixed at one end thereof to a mechanical or electrical device, bonding a carbon nanotube to the free end of the supporting holder, and modifying the property or the shape of the carbon nanotube by scanning an energy beam thereto. The nano tip, having improved stiffness and perpendicularity, is fabricated by adjusting the length, the diameter, and the shape of the end of the carbon nanotube tip attached with carbon nanotubes by means of the energy beam so that the nano tip may stably and repeatedly reproduce information of a sample and may minimize a deviation between the tips.
    • 本发明涉及通常可用于检测表面信号或化学信号的机械,物理和电气装置的纳米尖端的纳米尖端和制造方法,或可用于源扫描能量束。 根据本发明的纳米尖端的制造方法包括提供一个支撑保持器,该支撑保持器的一端被固定在机械或电气装置上,将碳纳米管粘合到支撑保持器的自由端,并且改变其特性或 通过扫描能量束来形成碳纳米管。 具有改善的刚度和垂直度的纳米尖端通过借助于能量束调节碳纳米管附着的碳纳米管尖端的长度,直径和形状来制造,使得纳米尖端可以稳定和重复 再现样品的信息并且可以最小化尖端之间的偏差。
    • 70. 发明申请
    • Panel for wide-angle flat cathode ray tubes
    • 广角平面阴极射线管面板
    • US20060208623A1
    • 2006-09-21
    • US11346155
    • 2006-02-03
    • Ki Park
    • Ki Park
    • H01J29/86
    • H01J29/87H01J2229/8606
    • Disclosed herein is a panel for wide-angle flat cathode ray tubes. The panel includes a face part formed at the front part thereof for displaying a picture, a skirt part having a seal edge joined with the funnel, and a blend round part connected between the face part and the skirt part. On the assumption that the compression stress of a center part, which is the center region of the face part, is σ1, and the compression stress of an edge part, which is the edge region of the face part adjacent to the blend round part, is σ2, the panel is constructed such that the following inequality is satisfied: 1.5≦σ2/σ1≦2.33. Consequently, the present invention has the effect of satisfying the safety of the explosion-resistance characteristic and compensating for the reduction of vacuum strength, which is caused when the deflection angle of the cathode ray tube is increased and the panel is flattened.
    • 本文公开了一种用于广角平面阴极射线管的面板。 面板包括形成在其前部的用于显示图片的面部部分,具有与漏斗接合的密封边缘的裙部部分和连接在面部部分和裙部部分之间的混合圆形部分。 假设作为面部的中心部的中心部的压缩应力为σ1,作为与混合圆部相邻的面部的边缘部的边缘部的压缩应力, 是sigma2,面板被构造成使得满足以下不等式:1.5 <= sigma2 / sigma1 <= 2.33。 因此,本发明具有满足防爆特性的安全性和补偿当阴极射线管的偏转角增加并且面板变平时引起的真空强度的降低的效果。