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公开(公告)号：JP2010048162A
公开(公告)日：2010-03-04
申请号：JP2008212801
申请日：2008-08-21
Applicant: Ebara Densan Ltd , 株式会社荏原電産
Inventor： MATAKE KOZO , KOJIMA YOSHINORI
Abstract: PROBLEM TO BE SOLVED: To provide a motor pump enabling stable start by suppressing wobbling of an impeller.
SOLUTION: The motor pump is provide with the impeller 1 in which a plurality of permanent magnets 5 are buried, a motor stator 6 for generating a magnetic field for working on the plurality of permanent magnets 5, a casing 2 provided with a suction port 13 and a discharge port 12 for storing the impeller 1 and the motor stator 6, and a spherical bearing 10 for supporting the impeller 1. The motor stator 6 is arranged at a suction side of the impeller 1 and the spherical bearing 10 is provided with a liquid flow passage 11 connected with a liquid inlet 1a formed in the impeller 1. The suction port 13 and the liquid inlet 1a of the impeller 1 are communicated through the liquid flow passage 11 and a minimum clearance of a front face of the impeller 1 and the casing 2 is set to be larger than a minimum clearance of a back face of the impeller 1 and the casing 2.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：通过抑制叶轮的摆动来提供能够稳定起动的电动泵。 解决方案：电机泵提供有多个永磁体5被埋置的叶轮1，用于产生用于在多个永磁体5上工作的磁场的电动机定子6，设置有 吸入口13和用于储存叶轮1和电动机定子6的排出口12以及用于支撑叶轮1的球面轴承10.电动机定子6设置在叶轮1的吸入侧，球面轴承10为 设置有与形成在叶轮1中的液体入口1a连接的液体流动通道11.叶轮1的吸入口13和液体入口1a通过液体流动通道11连通，并且最小间隙 叶轮1和壳体2被设定为大于叶轮1和壳体2的背面的最小间隙。版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2008015899A
公开(公告)日：2008-01-24
申请号：JP2006188125
申请日：2006-07-07
Applicant: Ebara Densan Ltd , 株式会社荏原電産
Inventor： NINOMIYA HIRONORI , KOMATSU TAKAARI , TAI MASA
Abstract: PROBLEM TO BE SOLVED: To provide a system interconnection power conditioner capable of stably and efficiently outputting ac power to a system even though an operating point of a solar panel fluctuates by maximum output power tracking control of the solar panel and even though a load condition fluctuates. SOLUTION: The system interconnection power conditioner is provided with a boosting chopper 12 for adjusting output voltage of the solar pane 11 to voltage to be maximum output power of the solar panel, and an inverter 15 for outputting ac power interconnected to the system with the voltage boosted by the boosting chopper as ac link voltage, wherein the inverter controls the ac link voltage at a constant level. The inverter 15 performs feedback control of inverter output current so as to make the ac link voltage constant and performs feedback control of reactive power components of inverter output current so as to be zero. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：即使太阳能电池板的工作点通过太阳能电池板的最大输出功率跟踪控制而波动，也能够提供能够稳定且有效地向系统输出交流电力的系统互联功率调节器， 负载条件波动。 解决方案：系统互连功率调节器设置有用于将太阳能电池板11的输出电压调节为太阳能电池板的最大输出功率的升压斩波器12，以及用于输出与系统互连的交流电力的逆变器15 由升压斩波器提升的电压作为交流电压，其中变频器将交流链路电压控制在恒定水平。 逆变器15进行逆变器输出电流的反馈控制，使交流电压恒定，对变频器输出电流的无功功率分量进行反馈控制，使其为零。 版权所有（C）2008，JPO＆INPIT
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Patent Agency Ranking
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公开(公告)号：JP2007244066A
公开(公告)日：2007-09-20
申请号：JP2006061069
申请日：2006-03-07
Applicant: Ebara Densan Ltd , 株式会社荏原電産
Inventor： OZAWA TAKAHIDE , TSUKAGOSHI ISAO , ISHIHARA SEIICHI
IPC: H02M7/48
Abstract: PROBLEM TO BE SOLVED: To provide a voltage-type current control inverter that can effectively superimpose tertiary harmonics even if a feedback system operator has a delay element. SOLUTION: The voltage-type current control inverter comprises: a voltage detector 18 that detects a voltage of a commercial power system; a current command waveform generator 24 that generates a current command waveform having the same frequency as a frequency of a system voltage; an error operator 25 having the delay element that operates an error between a current target value outputted from the generator and a current feedback value detected from an output line of the inverter; a tertiary harmonic waveform generator 26 that acquires a tertiary harmonic signal having a three-times frequency as high as the frequency of the system voltage; a phase shifter 27 that delays the phase by an amount of a delayed time of the error operator; and an adding operator 28 that adds an output of the error operator and an output of the phase shifter. An output of the adding operator is inputted into a pulse-width modulator 29, a pulse-width modulation signal is generated, and the inverter 15 is operated by the pulse-width modulation signal. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：即使反馈系统操作者具有延迟元件，也可提供能够有效地叠加三次谐波的电压型电流控制逆变器。 电压型电流控制逆变器包括：电压检测器18，其检测商用电力系统的电压; 电流指令波形发生器24，其生成与系统电压的频率相同频率的电流指令波形; 误差运算器25具有操作从发生器输出的当前目标值与从逆变器的输出线检测的电流反馈值之间的误差的延迟元件; 三次谐波波形发生器26，其获取具有与系统电压的频率相同的三倍频率的三次谐波信号; 移相器27，其将相位延迟误差算子的延迟时间量; 以及添加误差运算器的输出和移相器的输出的加法运算器28。 加法运算器的输出被输入到脉冲宽度调制器29中，产生脉宽调制信号，逆变器15由脉冲宽度调制信号进行动作。 版权所有（C）2007，JPO＆INPIT
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8.发明专利Web-monitoring device, web-monitoring system, computer program for equipment 审中-公开网络监控设备，WEB监控系统，设备计算机程序
公开(公告)号：JP2007233872A
公开(公告)日：2007-09-13
申请号：JP2006056973
申请日：2006-03-02
Applicant: Ebara Densan Ltd , 株式会社荏原電産
Inventor： FUJITA KENICHI
Abstract: PROBLEM TO BE SOLVED: To provide a web-monitoring device for automatically predicting a failure/maintenance timing of an apparatus for a facility to be monitored, and to provide a monitoring system for equipment using the web-monitoring device.
SOLUTION: The web-monitoring device is provided with an output circuit 22, an input circuit 21, a CPU20, an internal memory 28, and a communication port 25 for connection to the Internet network 10; predicts the failure period and/or maintenance timing of equipment with the CPU20, based on the state of the equipment connected via the output circuit 22 or the input circuit 21 and the failure condition and/or maintenance condition of each apparatus set previously in the internal memory 28; and reports them to an information device terminal 32, connected to the Internet network 10 via the communication port 25.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供一种用于自动预测待监测设备的设备的故障/维护定时的网络监控设备，并且提供使用网络监控设备的设备的监控系统。 网络监控设备具有输出电路22，输入电路21，CPU20，内部存储器28和用于连接到互联网10的通信端口25; 基于通过输出电路22或输入电路21连接的设备的状态以及先前在内部设置的每个设备的故障条件和/或维护条件来预测具有CPU20的设备的故障期和/或维护定时 记忆28; 并将其报告给通过通信端口25连接到互联网10的信息设备终端32.（C）2007，JPO＆INPIT
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公开(公告)号：JP2007231935A
公开(公告)日：2007-09-13
申请号：JP2007017643
申请日：2007-01-29
Applicant: Ebara Corp , Ebara Densan Ltd , 株式会社荏原製作所 , 株式会社荏原電産
Inventor： HOZUMI TAKASHI , MIYASHITA NOBUHITO , INADA TAKANORI , MATAKE KOZO , KOJIMA YOSHINORI , MIYAKE SUSUMU , USUI KATSUAKI
Abstract: PROBLEM TO BE SOLVED: To provide a vacuum pump unit with quiet drive technology which is miniature in size, has a compact structure, and an ultimate vacuum, is a low power consumption model, produces no contamination problem such as oil, tip seal and the like, and no supply system of cool water, nitrogen gas and the like required, exhaust air is possible from atmospheric pressure in a matter of minutes, capable of preventing electrical overload owing to condensed water and breakdowns.
SOLUTION: The vacuum pump unit comprises a main pump 15 arranged in the outside air pressure side and a booster pump 16 arranged in the vacuum side. The booster pump and the main pump are serially connected and the booster pump has a higher pumping speed than that of the main pump, and the main pump and the booster pump consist of a pair of pump rotors 52a, 52b and a casing 50 having an inlet port and an outlet port, and a pair of magnet rotors 54, 54 are integrally rotatable with a pair of pump rotors.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：为了提供具有微型尺寸的静音驱动技术的真空泵单元，具有紧凑的结构和极限真空，是低功耗模型，不产生污染问题，例如油，尖端 密封件等，并且不需要冷水，氮气等的供应系统，可以在几分钟内从大气压力排出空气，能够防止由于冷凝水而导致的电气过载和故障。 解决方案：真空泵单元包括布置在外部空气压力侧的主泵15和布置在真空侧的增压泵16。 增压泵和主泵串联，增压泵的泵送速度高于主泵，主泵和增压泵由一对泵转子52a，52b和壳体50组成，壳体50具有 入口和出口，一对磁体转子54,54可与一对泵转子一体旋转。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2007215324A
公开(公告)日：2007-08-23
申请号：JP2006032814
申请日：2006-02-09
Applicant: Ebara Corp , Ebara Densan Ltd , 株式会社荏原製作所 , 株式会社荏原電産
Inventor： NORIKOSHI ISAMI , HARADA YOSUKE , TSUKAGOSHI KENTA
IPC: H02M7/48
Abstract: PROBLEM TO BE SOLVED: To provide a power converter equipped with a high frequency transformer in which a surge generated on the output side of the high frequency transformer is removed by a simple circuit and control when power from a DC power supply is transformed into AC power. SOLUTION: In the power converter comprising an inverter 12, a high frequency transformer 13, and a two-way switch 15 and transforming a positive/negative rectangular wave pulse train boosted by the high frequency transformer 13 into a rectangular wave pulse train of the same polarity by rectifying it through the two-way switch 15, two or more series circuits of a power switch element AS1 and a capacitor C1 and of a power switch element AS2 and a capacitor C2 in a reverse direction are connected to both ends on the output side of the high frequency transformer 13. The power switch elements AS1 and AS2 operate in synchronism with the polarity of a output voltage from the high frequency transformer 13 and a surge voltage generated in the output voltage from the transformer 13 is clamped on the voltage of the capacitors C1 and C2. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供一种配备有高频变压器的电力转换器，其中通过简单的电路消除在高频变压器的输出侧产生的浪涌，并且当来自直流电源的电力被转换时的控制 进入交流电源。 解决方案：在包括逆变器12，高频变压器13和双向开关15的电力转换器中，将由高频变压器13升压的正/负矩形波脉冲串变换成矩形波脉冲串 通过双向开关15整流相同极性的两个或更多个电源开关元件AS1和电容器C1以及功率开关元件AS2和电容器C2的反向串联电路连接到两端 在高频变压器13的输出侧。功率开关元件AS1和AS2与来自高频变压器13的输出电压的极性同步地工作，并且将来自变压器13的输出电压中产生的浪涌电压钳位在 电容器C1和C2的电压。 版权所有（C）2007，JPO＆INPIT
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