公开(公告)号：US06922348B2

公开(公告)日：2005-07-26

申请号：US10332197

申请日：2001-07-05

申请人： Kaoru Nakajima ,  Kenichi Kajiwara ,  Masahito Kawai ,  Masahiko Kishi ,  Nobuhiro Higaki ,  Yukio Murai

发明人： Kaoru Nakajima ,  Kenichi Kajiwara ,  Masahito Kawai ,  Masahiko Kishi ,  Nobuhiro Higaki ,  Yukio Murai

IPC分类号： F04B17/00 ,  F04B47/06 ,  H02M3/24

CPC分类号： F04B17/006 ,  F04B47/06 ,  F04D13/068 ,  F04D15/0236 ,  Y10S323/906

摘要： According to the present invention, in a water supply apparatus which converts output power of a solar cell with an inverter to drive a motor pump for pumping up water, a DC brushless motor having no sensor for detecting a position of a rotatable shaft is used as a motor for driving the pump. Further, the water supply apparatus, having a pump and a frequency converter for supplying electric power to the pump and controlling a rotational speed of the pump, includes a standard current value table in which rotational frequencies of the pump and standard current values as criteria for shutoff operation at the rotational frequencies are associated with each other, a rotational frequency detecting device for detecting a rotational frequency of the pump, a standard current value acquiring device for acquiring a standard current value corresponding to the rotational frequency detected by the rotational frequency detecting device with reference to the standard current value table, a current detecting device for detecting a current value supplied to the pump, and a comparing device for comparing the current value detected by the current detecting device with the standard current value acquired by the standard current value acquiring device.

摘要翻译： 根据本发明，在使用逆变器转换太阳能电池的输出功率以驱动用于泵送水的电动泵的供水装置中，使用没有用于检测可旋转轴的位置的传感器的直流无刷电动机作为 用于驱动泵的电动机。 此外，具有用于向泵供给电力并控制泵的转速的泵和变频器的供水装置包括标准电流值表，其中泵的旋转频率和标准电流值作为标准 旋转频率的关闭操作相关联，用于检测泵的旋转频率的旋转频率检测装置，用于获取与旋转频率检测装置检测到的旋转频率相对应的标准电流值的标准电流值获取装置 参考标准电流值表，检测提供给泵的电流值的电流检测装置和用于将由电流检测装置检测的电流值与通过标准电流值获取获得的标准电流值进行比较的比较装置 设备。

公开(公告)号：US08714933B2

公开(公告)日：2014-05-06

申请号：US12864257

申请日：2009-01-22

申请人： Takahide Komatsu ,  Kazuhiro Kaneda ,  Tomoharu Tejima ,  Nobuhiro Higaki ,  Sachiko Miyauchi

发明人： Takahide Komatsu ,  Kazuhiro Kaneda ,  Tomoharu Tejima ,  Nobuhiro Higaki ,  Sachiko Miyauchi

IPC分类号： F04B49/06 ,  F04B41/06 ,  F04D15/00

CPC分类号： E03C1/025 ,  F04B41/06 ,  F04D15/0066 ,  F04D15/029 ,  G05B9/03 ,  Y10T137/86131 ,  Y10T137/86163

摘要： A water supply apparatus is capable of performing a backup operation, without lowering water supply capability, when a failure has occurred in one control substrate due to surge or noise caused by lightning or sensor wear, by switching to the other control substrate, and capable of reliably performing the backup operation. The water supply apparatus includes: a plurality of pumps; a plurality of inverters each configured to change and control a rotational frequency of a corresponding one of the plurality of pumps; and a plurality of control substrates configured to control the plurality of inverters. When an abnormality occurs in one control substrate, other control substrate backs up the one control substrate to thereby allow the water supply apparatus to continue its operations. The one control substrate, the plurality of inverters, and the other control substrate are connected in series by communication lines.

摘要翻译： 当由于闪电或传感器磨损引起的浪涌或噪声而导致的一个控制基板发生故障时，通过切换到另一个控制基板，供水装置能够执行备用操作而不降低供水能力，并且能够 可靠地执行备份操作。 供水装置包括：多个泵; 多个逆变器，其被配置为改变和控制所述多个泵中的相应一个泵的转速; 以及多个控制基板，被配置为控制所述多个逆变器。 当在一个控制基板中发生异常时，其他控制基板支撑一个控制基板，从而允许供水装置继续其操作。 一个控制基板，多个反相器和另一个控制基板通过通信线串联连接。

公开(公告)号：US20100307619A1

公开(公告)日：2010-12-09

申请号：US12864257

申请日：2009-01-22

申请人： Takahide Komatsu ,  Kazuhiro Kaneda ,  Tomoharu Tejima ,  Nobuhiro Higaki ,  Sachiko Miyauchi

发明人： Takahide Komatsu ,  Kazuhiro Kaneda ,  Tomoharu Tejima ,  Nobuhiro Higaki ,  Sachiko Miyauchi

IPC分类号： E03B11/16

CPC分类号： E03C1/025 ,  F04B41/06 ,  F04D15/0066 ,  F04D15/029 ,  G05B9/03 ,  Y10T137/86131 ,  Y10T137/86163

摘要： The present invention provides a water supply apparatus capable of performing a backup operation, without lowering water supply capability, when a failure has occurred in one control substrate due to surge or noise caused by lightning or due to lifetimes of various sensors, by switching to the other control substrate, and capable of reliably performing the backup operation by means of devices that prevent failure of the control substrates. The water supply apparatus (1) includes: a plurality of pumps (3); a plurality of inverters (INV) each configured to change and control a rotational frequency of a corresponding one of the plurality of pumps (3); and a plurality of control substrates (CN) configured to control the plurality of inverters (INV). When an abnormality occurs in one control substrate, other control substrate backs up the one control substrate to thereby allow the water supply apparatus to continue its operations. The one control substrate, the plurality of inverters (INV), and the other control substrate are connected in series by communication lines. A switch (SW1) for turning on and off a communication is provided on the communication lines.

摘要翻译： 本发明提供一种能够在不降低供水能力的情况下执行备用操作的供水装置，当由于闪电引起的浪涌或噪声或由于各种传感器的寿命而在一个控制基板中发生故障时，通过切换到 其他控制基板，能够通过防止控制基板故障的装置可靠地进行备用动作。 供水装置（1）包括：多个泵（3）; 多个逆变器（INV），其被配置为改变和控制所述多个泵（3）中的相应一个泵的旋转频率; 以及被配置为控制所述多个逆变器（INV）的多个控制基板（CN）。 当在一个控制基板中发生异常时，其他控制基板支撑一个控制基板，从而允许供水装置继续其操作。 一个控制基板，多个反相器（INV）和另一个控制基板通过通信线串联连接。 在通信线路上设置用于接通和断开通信的开关（SW1）。