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公开(公告)号：US07548034B2
公开(公告)日：2009-06-16
申请号：US11564514
申请日：2006-11-29
IPC分类号： H02P7/00
CPC分类号： B04B9/10
摘要： A centrifuge including: a rotor rotating with a sample contained therein; a rotating shaft rotatably engaged with the rotor; a motor rotating the rotor and the rotating shaft; a belt transmitting rotational force of the motor to the rotating shaft; a rotor speed detecting unit detecting a rotation speed of the rotor; a motor speed detecting unit detecting a rotation speed of the motor; and a control unit controlling the motor, wherein the control unit calculates a signal for controlling the rotation speed of the rotor on the basis of a signal from the rotor speed detecting unit and controls the motor on the basis of a signal from the motor speed detecting unit and the calculated signal.
摘要翻译： 一种离心机，包括：转子，其中容纳有样品; 与转子可旋转地接合的旋转轴; 旋转转子和旋转轴的电机; 将所述电动机的旋转力传递到所述旋转轴的带; 转子速度检测单元，检测转子的转速; 马达速度检测单元，检测马达的转速; 以及控制单元，其控制所述电动机，其中所述控制单元基于来自所述转子速度检测单元的信号计算用于控制所述转子的转速的信号，并且基于来自所述电动机速度检测的信号来控制所述电动机 单位和计算出的信号。
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2.发明申请Belt driven centrifugal separator with multi-stage, belt deterioration alerting display 失效带式离心分离机带多级，带退化报警显示公开(公告)号：US20070075667A1
公开(公告)日：2007-04-05
申请号：US11542143
申请日：2006-10-04
IPC分类号： H02P7/00
CPC分类号： B04B9/10 , B04B13/00 , Y10S388/924
摘要： In a centrifugal separator of the type in which driving power of a motor is transmitted to a rotor via a power transmission mechanism, such as a belt, a motor-rotation signal frequency fm and a rotor-rotation signal frequency fr are computed, on the basis of which a frequency ratio A (fr/fm) is computed. When the frequency ratio A exceeds the upper limit of a first predetermined range, a warning message is displayed to prompt the user to perform maintenance. When the frequency ratio A exceeds the upper limit of a second predetermined range, an alarm message is displayed and the motor is stopped.
摘要翻译： 在电动机的驱动力经由诸如皮带的动力传递机构传递到转子的类型的离心分离器中，计算电机旋转信号频率fm和转子旋转信号频率fr， 其基础是计算频率比A（fr / fm）。 当频率比A超过第一预定范围的上限时，显示警告消息以提示用户执行维护。 当频率比A超过第二预定范围的上限时，显示警报消息并且电动机停止。
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公开(公告)号：US20050153823A1
公开(公告)日：2005-07-14
申请号：US10995373
申请日：2004-11-24
CPC分类号： B04B9/08 , B04B5/0414 , B04B5/0421 , B04B9/12 , B04B13/00 , B04B13/003
摘要： A centrifugal separator facilitates maintenance with a function that provides the user with useful data for investigating the causes of failures and for preventing their recurrence, such as data needed to determine the appropriate management and replacement frequency of consumable parts. The centrifugal separator also has a storing unit for recording the number of times that the door is opened and closed, operation records of the drive unit by each shaft, and the number of operations performed by operating function, as well as a display unit for displaying the data. The centrifugal separator also includes a function for displaying messages prompting the user to perform maintenance when the aforementioned performance data reach a predetermined value.
摘要翻译： 离心分离器有助于维护，其功能为用户提供有用的数据，用于调查故障原因并防止其复发，例如确定易损件的适当管理和更换频率所需的数据。 离心分离器还具有用于记录门打开和关闭的次数的存储单元，每个轴的驱动单元的操作记录以及由操作功能执行的操作次数以及用于显示的显示单元 数据。 离心分离器还包括当上述性能数据达到预定值时显示提示用户执行维护的消息的功能。
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4.发明授权Belt driven centrifugal separator with multi-stage, belt deterioration alerting display 失效带式离心分离机带多级，带退化报警显示公开(公告)号：US07372219B2
公开(公告)日：2008-05-13
申请号：US11542143
申请日：2006-10-04
IPC分类号： B04B9/10
CPC分类号： B04B9/10 , B04B13/00 , Y10S388/924
摘要： In a centrifugal separator of the type in which driving power of a motor is transmitted to a rotor via a power transmission mechanism, such as a belt, a motor-rotation signal frequency fm and a rotor-rotation signal frequency fr are computed, on the basis of which a frequency ratio A (fr/fm) is computed. When the frequency ratio A exceeds the upper limit of a first predetermined range, a warning message is displayed to prompt the user to perform maintenance. When the frequency ratio A exceeds the upper limit of a second predetermined range, an alarm message is displayed and the motor is stopped.
摘要翻译： 在电动机的驱动力经由诸如皮带的动力传递机构传递到转子的类型的离心分离器中，计算电机旋转信号频率fm和转子旋转信号频率fr， 其基础是计算频率比A（fr / fm）。 当频率比A超过第一预定范围的上限时，显示警告消息以提示用户执行维护。 当频率比A超过第二预定范围的上限时，显示警报消息并且电动机停止。
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公开(公告)号：US20070138988A1
公开(公告)日：2007-06-21
申请号：US11564514
申请日：2006-11-29
IPC分类号： H02P7/00
CPC分类号： B04B9/10
摘要： A centrifuge including: a rotor rotating with a sample contained therein; a rotating shaft rotatably engaged with the rotor; a motor rotating the rotor and the rotating shaft; a belt transmitting rotational force of the motor to the rotating shaft; a rotor speed detecting unit detecting a rotation speed of the rotor; a motor speed detecting unit detecting a rotation speed of the motor; and a control unit controlling the motor, wherein the control unit calculates a signal for controlling the rotation speed of the rotor on the basis of a signal from the rotor speed detecting unit and controls the motor on the basis of a signal from the motor speed detecting unit and the calculated signal.
摘要翻译： 一种离心机，包括：转子，其中容纳有样品; 与转子可旋转地接合的旋转轴; 旋转转子和旋转轴的电机; 将所述电动机的旋转力传递到所述旋转轴的带; 转子速度检测单元，检测转子的转速; 马达速度检测单元，检测马达的转速; 以及控制单元，其控制所述电动机，其中所述控制单元基于来自所述转子速度检测单元的信号来计算用于控制所述转子的转速的信号，并且基于来自所述电动机速度检测的信号来控制所述电动机 单位和计算出的信号。
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公开(公告)号：US07104944B2
公开(公告)日：2006-09-12
申请号：US10995373
申请日：2004-11-24
IPC分类号： B04B13/00
CPC分类号： B04B9/08 , B04B5/0414 , B04B5/0421 , B04B9/12 , B04B13/00 , B04B13/003
摘要： A centrifugal separator facilitates maintenance with a function that provides the user with useful data for investigating the causes of failures and for preventing their recurrence, such as data needed to determine the appropriate management and replacement frequency of consumable parts. The centrifugal separator also has a storing unit for recording the number of times that the door is opened and closed, operation records of the drive unit by each shaft, and the number of operations performed by operating function, as well as a display unit for displaying the data. The centrifugal separator also includes a function for displaying messages prompting the user to perform maintenance when the aforementioned performance data reach a predetermined value.
摘要翻译： 离心分离器有助于维护，其功能为用户提供有用的数据，用于调查故障原因并防止其复发，例如确定易损件的适当管理和更换频率所需的数据。 离心分离器还具有用于记录门打开和关闭的次数的存储单元，每个轴的驱动单元的操作记录以及由操作功能执行的操作次数以及用于显示的显示单元 数据。 离心分离器还包括当上述性能数据达到预定值时显示提示用户执行维护的消息的功能。
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公开(公告)号：US06204627B1
公开(公告)日：2001-03-20
申请号：US09374114
申请日：1999-08-16
IPC分类号： B04B1300
CPC分类号： B04B9/10 , H02M5/4585 , H02P27/06
摘要： A transformer outputs different (high or low) secondary voltages. A switch outputs high or low secondary voltage according to a mode signal. An electric power converter including a rectifying circuit and a switching circuit either charges a smoothing capacitor with an output of the switch or discharges the smoothing capacitor to supply a regenerative current toward the transformer with a power fact improved. An phase signal generation circuit generates PWM or PAM phase signals in accordance with the mode signal. An inverter circuit generates driving signals supplied to the motor in response to the phase signals from power from the smoothing capacitor. A mode determining circuit determines one of modes to generate the mode signal in accordance with a speed command signal and acceleration/deceleration which is indicated by the rotating speed signal and the rotating speed command signal.
摘要翻译： 变压器输出不同的（高或低）二次电压。 A开关根据模式信号输出高或低二次电压。 包括整流电路和开关电路的电力转换器可以通过开关的输出对平滑电容器进行充电，或者放电平滑电容器，以提高功率事实向变压器提供再生电流。 相位信号产生电路根据模式信号产生PWM或PAM相位信号。 逆变器电路根据来自平滑电容器的功率的相位信号产生提供给电动机的驱动信号。 模式确定电路根据由转速信号和转速指令信号指示的速度指令信号和加速/减速来确定生成模式信号的一种模式。
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公开(公告)号：US5608301A
公开(公告)日：1997-03-04
申请号：US495962
申请日：1995-06-28
申请人： Masahiro Inaniwa , Nobuharu Kido , Takahiro Fujimaki , Shinji Watanabe , Noriyasu Matsufuji , Yoshinori Tobita
发明人： Masahiro Inaniwa , Nobuharu Kido , Takahiro Fujimaki , Shinji Watanabe , Noriyasu Matsufuji , Yoshinori Tobita
CPC分类号： H02M5/4585 , H02P23/07 , H02P2201/03 , H02P2201/07
摘要： A power control apparatus for controlling power supplied to an electric motor rotating a rotor employed in a centrifuge is provided. The power control apparatus includes first and second inverters and a smoothing capacitor disposed between the first and second inverters. In a motor power mode, the first inverter charges the smoothing capacitor with power supplied by an AC power supply, while the second inverter charges, in a motor braking mode, the smoothing capacitor with power regenerated by the motor during a braking operation for returning the regenerated power back to the AC power supply through the first inverter. An reactor is arranged between the AC power supply and the first inverter for reducing harmonic components contained in the current supplied from or back to the AC power supply.
摘要翻译： 提供一种功率控制装置，用于控制向离心机中使用的转子旋转的电动机的供给。 功率控制装置包括第一和第二反相器和设置在第一和第二反相器之间的平滑电容器。 在电动机功率模式中，第一变换器用交流电源供电的电力对平滑电容器充电，而第二变换器在电动机制动模式下对制动操作期间电动机再生电力的平滑电容器进行充电， 通过第一个逆变器将再生的电力返回给交流电源。 在交流电源和第一逆变器之间设置一个电抗器，用于减少由交流电源供给或返回的电流中包含的谐波分量。
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公开(公告)号：US5649893A
公开(公告)日：1997-07-22
申请号：US651245
申请日：1996-05-22
CPC分类号： B04B13/003
摘要： A centrifugal protection apparatus including: a rotor having markers connected to a motor responsive to drive signals; first and second detectors for detecting the marker upon rotation of the rotor and generating first and second detection signals respectively; a drive circuit responsive to a command for generating the drive signals from the supply power via input terminal in response to the first or second detection signal; first and second switch circuits, arranged in series between the input terminal and the motor, for controlling the supply of the drive signals to the motor; a current detector for detecting a current of one of the drive signals and generating a current detection signal; and first and second judging portions for detecting whether the first and second detection signals are within a predetermined value and for operating the first and second switch circuits to cut off the drive signals when the first and second detection signals are not within the predetermined value respectively and when a magnitude of the current detection signal is larger than the predetermined value when the second detection signal is not generated. The first and second judging portions, first and second detectors, and the current detector operate in parallel and independently. The first and second switch circuits are arranged in series to provide more dependable protection.
摘要翻译： 一种离心保护装置，包括：转子，其具有响应于驱动信号而连接到电机的标记; 第一和第二检测器，用于在转子旋转时检测标记，并分别产生第一和第二检测信号; 驱动电路，其响应于所述第一或第二检测信号响应于通过输入端从所述供电电力产生驱动信号的命令; 第一和第二开关电路，串联布置在输入端子和电动机之间，用于控制向马达的驱动信号的供应; 电流检测器，用于检测所述驱动信号之一的电流并产生电流检测信号; 以及第一和第二判断部分，用于检测第一和第二检测信号是否在预定值内，并且用于在第一和第二检测信号不在预定值内时操作第一和第二开关电路来切断驱动信号; 当不产生第二检测信号时电流检测信号的大小大于预定值。 第一和第二判断部分，第一和第二检测器以及电流检测器并联并独立地操作。 第一和第二开关电路串联布置以提供更可靠的保护。
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公开(公告)号：US5731681A
公开(公告)日：1998-03-24
申请号：US800902
申请日：1997-02-12
申请人： Masahiro Inaniwa , Nobuharu Kido , Takahiro Fujimaki , Shinji Watanabe , Noriyasu Matsufuji , Yoshinori Tobita
发明人： Masahiro Inaniwa , Nobuharu Kido , Takahiro Fujimaki , Shinji Watanabe , Noriyasu Matsufuji , Yoshinori Tobita
CPC分类号： H02M5/4585 , H02P23/07 , H02P2201/03 , H02P2201/07
摘要： A power control apparatus for controlling power supplied to an electric motor rotating a rotor employed in a centrifuge is provided. The power control apparatus includes first and second inverters and a smoothing capacitor disposed between the first and second inverters. In a motor power mode, the first inverter charges the smoothing capacitor with power supplied by an AC power supply, while the second inverter charges, in a motor braking mode, the smoothing capacitor with power regenerated by the motor during a braking operation for returning the regenerated power back to the AC power supply through the first inverter. An reactor is arranged between the AC power supply and the first inverter for reducing harmonic components contained in the current supplied from or back to the AC power supply.
摘要翻译： 提供一种功率控制装置，用于控制向离心机中使用的转子旋转的电动机的供给。 功率控制装置包括第一和第二反相器和设置在第一和第二反相器之间的平滑电容器。 在电动机功率模式中，第一变换器用交流电源供电的电力对平滑电容器充电，而第二变换器在电动机制动模式下对制动操作期间电动机再生电力的平滑电容器进行充电， 通过第一个逆变器将再生的电力返回给交流电源。 在交流电源和第一逆变器之间设置电抗器，用于减少由AC电源供给的电流中包含的谐波成分。
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