公开(公告)号：US5100298A

公开(公告)日：1992-03-31

申请号：US489101

申请日：1990-03-06

申请人： Tomoyuki Shibata ,  Noboru Hokimoto

发明人： Tomoyuki Shibata ,  Noboru Hokimoto

IPC分类号： F04D13/00 ,  F04B49/02 ,  F04B49/025 ,  F04D13/08 ,  G05D9/12

CPC分类号： G05D9/12 ,  F04B49/022 ,  F04B49/025

摘要： A controller for an underwater pump which operates to start and stop the pump in response to a water level detected by a water level sensor is disclosed. The controller (10) is constituted as a separate component which comprises a watertight case (11), a first connector (13) provided at a first predetermined position of the case for installation on a power connector (12) provided at a pump casing (51), a second connector (14) provided at a second predetermined position on the case, on which an external power connector (15) is to be installed, electronic parts and units (18, 19, 20) constituting a control circuit installed in the case for starting and stopping the pump based on signals output from the water level detection sensor (S.sub.1, S.sub.2, S.sub.3), and a cable (22) watertightly derived from the case externally for electrically connecting the control circuit and the water level sensor. The pump may be operated in an automatic operation mode. However, by removing the controller from the pump casing and the external power connector and by directly connecting the external power connector to the power connector of the pump, the pump may be converted to a non-automatic operation mode.

摘要翻译： 公开了一种水下泵的控制器，其操作以响应于由水位传感器检测到的水位启动和停止泵。 控制器（10）构成为一个单独的部件，它包括防水壳体（11），设置在壳体的第一预定位置处的第一连接器（13），用于安装在设置在泵壳体上的电源连接器（12） 51），设置在壳体上的第二预定位置上的第二连接器（14），其上将安装有外部电源连接器（15），构成安装在其中的控制电路的电子部件和单元（18,19,20） 基于从水位检测传感器（S1，S2，S3）输出的信号来启动和停止泵的情况，以及从外部水密地导出的用于电连接控制电路和水位传感器的电缆（22）。 泵可以在自动操作模式下操作。 然而，通过从泵壳体和外部电源连接器移除控制器，并且通过将外部电源连接器直接连接到泵的电源连接器，泵可以转换为非自动操作模式。