WO2016004743A1 - Electronic water level switch for automatic control of pump - Google Patents

Electronic water level switch for automatic control of pump Download PDF

Info

Publication number
WO2016004743A1
WO2016004743A1 PCT/CN2014/095724 CN2014095724W WO2016004743A1 WO 2016004743 A1 WO2016004743 A1 WO 2016004743A1 CN 2014095724 W CN2014095724 W CN 2014095724W WO 2016004743 A1 WO2016004743 A1 WO 2016004743A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
water level
electrode
level switch
level sensor
Prior art date
Application number
PCT/CN2014/095724
Other languages
French (fr)
Chinese (zh)
Inventor
张君波
Original Assignee
君禾泵业股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 君禾泵业股份有限公司 filed Critical 君禾泵业股份有限公司
Priority to DE112014006742.3T priority Critical patent/DE112014006742B4/en
Priority to DE212014000268.0U priority patent/DE212014000268U1/en
Publication of WO2016004743A1 publication Critical patent/WO2016004743A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • F04B23/021—Pumping installations or systems having reservoirs the pump being immersed in the reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control

Definitions

  • the utility model relates to a pump automatic control water level switch, in particular to an electronic water level switch for automatic pump control.
  • a pump is a machine that delivers or pressurizes a liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid.
  • the purpose of the utility model is to provide an electronic water level switch for automatic control of automatic control with high precision and high performance in order to solve the above-mentioned deficiencies of the prior art.
  • an electronic water level switch for automatic pump control designed by the utility model comprises a water level sensor capable of testing a water level signal and a test signal capable of receiving the water level sensor to realize a switching state of the pump. Controlling the circuit board portion, the water level sensor is led out with two electrodes, wherein one end of the first electrode extends to the inside of the pump chamber through which the pump delivers liquid or inside the pipeline joint or inside the pipeline, and the other end extends
  • the pump chamber has a second electrode located outside the pump chamber and lower in the horizontal position than the first electrode with a large height difference therebetween.
  • One of the above-mentioned electronic water level switches for automatic pump control has a control principle: when the pump is energized, when the two electrodes of the water level sensor are in contact with the liquid, a test signal is formed, and the control circuit board receives the above test signal, and the pump starts. Work, at this time, if one of the electrodes leaves the liquid, the test signal of the water level sensor is interrupted, and the pump stops working synchronously; however, because one end of the first electrode on the middle water level sensor extends to the pump to deliver liquid Inside the pump chamber or inside the pipeline joint or inside the pipeline.
  • the pump chamber When the pump is working, regardless of whether the water level is high or low outside the pump chamber, the pump chamber is always filled with liquid, so even if the water level outside the pump chamber drops to leave the first electrode One end of the pump chamber, but the other end of the pump chamber and the second electrode are still conducting, the pump will continue to work, thus achieving the pump's delay stop function; at the same time, the present invention stops the delay
  • the specific delay time of the function is also determined according to the specific liquid height change, so it will not make the electronic water level switch as a whole to control the pump. Accuracy.
  • the first electrode is located on one end of the pump chamber or And the second electrode is electrically connected with a conductive slider that can be vertically adjusted according to the pump body.
  • the water level of the pump can be arbitrarily set and the water level can be stopped; and when the conductive slider on the first electrode moves to the second electrode or the second electrode When the conductive slider is in contact, the pump will be in the normally open state for its actual use.
  • the utility model obtains an electronic water level switch for automatic pump control, which has high automatic control precision when the pump is working, and the failure rate of the pump under the automatic control of the above electronic water level switch is low, and the economic benefit is good.
  • FIG. 1 is a schematic structural view of an electronic water level switch (including a pump body) for automatic pump control according to Embodiment 1;
  • Figure 2 is a partial enlarged view of A in Figure 1;
  • FIG. 3 is a schematic structural view of an electronic water level switch (including a pump body) for automatic pump control according to Embodiment 2;
  • FIG. 4 is a schematic structural view of an electronic water level switch (including a pump body) for automatic pump control according to Embodiment 3.
  • water level sensor 1 control circuit board part 2 , pump chamber 3 , pump inner wall 4 , motor chamber 5 , first electrode 6 , the second electrode 7 , the pipe joint 8 , the pipe 9 , the conductive slider 10 .
  • an electronic water level switch for automatic pump control includes a water level sensor 1 capable of testing a water level signal and a water level sensor 1
  • the test signal can realize the control circuit board part 2 of the pump's stop working state switching, wherein the water level sensor 1 is located outside the pump chamber 3 and is fixed to the pump inner wall 4 to control the circuit board part 2 It is fixed in the motor chamber 5 of the pump, and the water level sensor 1 is led out with two electrodes, wherein one end of the first electrode 6 extends to the pump chamber through which the pump delivers liquid 3 Internally, of course, one end of the first electrode may also extend to the inside of the pipe joint through which the pump delivers liquid or the inside of the pipeline, the other end of which extends out of the pump chamber 3, and the second electrode 7 is located in the pump chamber 3 Externally, and lower than the first electrode 6 in the horizontal position, there is a height difference of 150 mm between the two.
  • the electronic water level switch for automatic pump control has the same general structure as that of the embodiment 1, as shown in FIG.
  • the first electrode 6 is located at one end of the pump chamber 3 and is electrically connected to the conductive slider 10 which can be vertically adjusted according to the pump body.
  • the conductive slider 10 is adjusted.
  • the vertical height, the water level of the pump can be set arbitrarily and the water level can be stopped; and when the conductive slider 10 on the first electrode 6 moves to the second electrode 7 When in contact, the pump will be in a normally open state for its actual use.
  • the electronic water level switch for automatic pump control has the same general structure as that of the embodiment 2, as shown in FIG.
  • the first electrode 6 is located at one end of the pump chamber 3 and the second electrode 7 is electrically connected to the conductive slider 10 which can be vertically adjusted according to the pump body, and the second electrode 7
  • the electrically connected conductive slider 10 is to be placed above the electrically conductive slider 10 to which the first electrode 6 is electrically connected, by adjusting the electrically conductive slider 10
  • the vertical height of the pump can be set to the water level of the pump and the water level is stopped; and when the conductive slider 10 on the first electrode 6 is moved to the conductive slider 10 on the second electrode 7 or the second electrode 7 When in contact, the pump will be in a normally open state for its actual use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

An electronic water level switch for automatic control of a pump comprises a water level sensor (1) and a control circuit board (2) for switching between a stop state and a start state of the pump by receiving a test signal of the water level sensor (1). Two electrodes are led out from the water level sensor (1). One end of a first electrode (6) extends into the interior of a pump cavity (3) or the interior of a pipeline joint or the interior of a pipeline. The other end of the first electrode (6) stretches out of the pump cavity (3). A second electrode (7) is located outside the pump cavity (3) and is lower than the first electrode (6) at a horizontal position. The electronic water level switch improves the accuracy of the pump control and reduces the failure occurrence rate of the pump.

Description

泵自动控制用电子水位开关Automatic water level switch for pump automatic control
技术领域 Technical field
本实用新型涉及一种泵自动控制用水位开关，特别是一种泵自动控制用电子水位开关。The utility model relates to a pump automatic control water level switch, in particular to an electronic water level switch for automatic pump control.
背景技术 Background technique
泵是输送液体或使液体增压的机械。它将原动机的机械能或其他外部能量传送给液体，使液体能量增加。 A pump is a machine that delivers or pressurizes a liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid.
目前，现有泵通常采用一个延时传感器来实现自动控制功能。其具体控制过程是通过延时传感器检测水位，当检测到液体时泵工作，当离开液体时泵延时停止工作。但是由于泵工作环境的不同，上述的泵自动控制方式的控制精准性差，故障频发率高，经济效益差。Currently, existing pumps typically employ a time delay sensor for automatic control. The specific control process is to detect the water level by the delay sensor. When the liquid is detected, the pump works, and when it leaves the liquid, the pump stops working. However, due to the different working environment of the pump, the above-mentioned automatic control mode of the pump has poor control precision, high frequency of failure, and poor economic efficiency.
实用新型内容 Utility model content
本实用新型的目的是为了解决上述现有技术的不足而提供一种自动控制精确性能高的泵自动控制用电子水位开关。The purpose of the utility model is to provide an electronic water level switch for automatic control of automatic control with high precision and high performance in order to solve the above-mentioned deficiencies of the prior art.
为了实现上述目的，本实用新型所设计的一种泵自动控制用电子水位开关，包括一个能够测试水位信号的水位传感器以及一个通过接收上述水位传感器的测试信号能够实现泵的停开工作状态切换的控制线路板部分，所述的水位传感器上引出有两个电极，其中第一电极的一端延伸至泵输送液体所流过的泵腔内部或者管路接头内部或者管路内部，其另一端延伸出泵腔，第二电极位于泵腔外部，并且在水平位置上要低于第一电极，同时两者之间存在一个较大的高度差。In order to achieve the above object, an electronic water level switch for automatic pump control designed by the utility model comprises a water level sensor capable of testing a water level signal and a test signal capable of receiving the water level sensor to realize a switching state of the pump. Controlling the circuit board portion, the water level sensor is led out with two electrodes, wherein one end of the first electrode extends to the inside of the pump chamber through which the pump delivers liquid or inside the pipeline joint or inside the pipeline, and the other end extends The pump chamber has a second electrode located outside the pump chamber and lower in the horizontal position than the first electrode with a large height difference therebetween.
上述中的的一种泵自动控制用电子水位开关，其控制原理：泵通电后当水位传感器的两个电极都接触到液体后形成测试信号，控制线路板部分接收到上述测试信号，泵便开始工作，此时如果其中一个电极离开液体后，水位传感器的测试信号中断，泵同步的停止工作；然而，又由于上述中水位传感器上的第一电极的一头端延伸至泵输送液体所流过的泵腔内部或者管路接头内部亦或者管路内部，泵工作时不管泵腔外水位高还是低，泵腔内一直是充满液体的，所以此时即使泵腔外水位下降至离开第一电极位于泵腔外的一端，但其位于泵腔内的另一端和第二电极仍然是导通的，水泵会继续工作，从而就实现了泵的延时停止功能；同时本实用新型中本延时停止功能的具体延时时间也是根据具体液体高度变化来决定的，因此不会使得电子水位开关整体对泵的控制精确性。 One of the above-mentioned electronic water level switches for automatic pump control has a control principle: when the pump is energized, when the two electrodes of the water level sensor are in contact with the liquid, a test signal is formed, and the control circuit board receives the above test signal, and the pump starts. Work, at this time, if one of the electrodes leaves the liquid, the test signal of the water level sensor is interrupted, and the pump stops working synchronously; however, because one end of the first electrode on the middle water level sensor extends to the pump to deliver liquid Inside the pump chamber or inside the pipeline joint or inside the pipeline. When the pump is working, regardless of whether the water level is high or low outside the pump chamber, the pump chamber is always filled with liquid, so even if the water level outside the pump chamber drops to leave the first electrode One end of the pump chamber, but the other end of the pump chamber and the second electrode are still conducting, the pump will continue to work, thus achieving the pump's delay stop function; at the same time, the present invention stops the delay The specific delay time of the function is also determined according to the specific liquid height change, so it will not make the electronic water level switch as a whole to control the pump. Accuracy.
作为进一步的技术改进，在上述的第一电极位于泵腔外的一端上或 / 和第二电极上均电连接有依着泵体可进行垂直升降调节的导电滑块。上述进一步的技术改进方案中通过调节导电滑块的垂直高度，可以随意设定泵的开启水位以及停止水位；而且当第一电极上的导电滑块移动到与第二电极或者第二电极上的导电滑块接触时，此时泵便会处于常开状态，以便其实际使用需求。As a further technical improvement, the first electrode is located on one end of the pump chamber or And the second electrode is electrically connected with a conductive slider that can be vertically adjusted according to the pump body. In the above further technical improvement, by adjusting the vertical height of the conductive slider, the water level of the pump can be arbitrarily set and the water level can be stopped; and when the conductive slider on the first electrode moves to the second electrode or the second electrode When the conductive slider is in contact, the pump will be in the normally open state for its actual use.
本实用新型得到的一种泵自动控制用电子水位开关，其对泵工作时的自动控制准确性高，泵在上述电子水位开关的自动控制下故障发生率低，经济效益好。 The utility model obtains an electronic water level switch for automatic pump control, which has high automatic control precision when the pump is working, and the failure rate of the pump under the automatic control of the above electronic water level switch is low, and the economic benefit is good.
附图说明 DRAWINGS
图 1 是实施例 1 所提供一种泵自动控制用电子水位开关（包含有泵体）的结构示意图； 1 is a schematic structural view of an electronic water level switch (including a pump body) for automatic pump control according to Embodiment 1;
图 2 是图 1 中 A 处的局部放大示意图； Figure 2 is a partial enlarged view of A in Figure 1;
图 3 是实施例 2 所提供一种泵自动控制用电子水位开关（包含有泵体）的结构示意图； 3 is a schematic structural view of an electronic water level switch (including a pump body) for automatic pump control according to Embodiment 2;
图 4 是实施例 3 所提供一种泵自动控制用电子水位开关（包含有泵体）的结构示意图。 4 is a schematic structural view of an electronic water level switch (including a pump body) for automatic pump control according to Embodiment 3.
图中：水位传感器 1 、控制线路板部分 2 、泵腔 3 、泵体内壁 4 、电机腔室 5 、第一电极 6 、第二电极 7 、管路接头 8 、管路 9 、导电滑块 10 。In the figure: water level sensor 1 , control circuit board part 2 , pump chamber 3 , pump inner wall 4 , motor chamber 5 , first electrode 6 , the second electrode 7 , the pipe joint 8 , the pipe 9 , the conductive slider 10 .
具体实施方式 detailed description
下面结合附图和实施例对本实用新型进一步说明。 The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
实施例 1 ：Example 1
如图 1 和图 2 所示，本实施例中所提供的一种泵自动控制用电子水位开关，包括一个能够测试水位信号的水位传感器 1 以及一个通过接收上述水位传感器 1 的测试信号能够实现泵的停开工作状态切换的控制线路板部分 2 ，其中水位传感器 1 位于泵腔 3 外，并与泵体内壁 4 相固定，控制线路板部分 2 固定在泵的电机腔室 5 内，所述的水位传感器 1 上引出有两个电极，其中第一电极 6 的一端延伸至泵输送液体所流过的泵腔 3 内部，当然，第一电极的一端也可延伸至泵输送液体所流过的管路接头内部或者管路内部，其另一端延伸出泵腔 3 ，第二电极 7 位于泵腔 3 外部，并且在水平位置上要低于第一电极 6 ，同时两者之间存在一个 150 ㎜的高度差。 Figure 1 and Figure 2 As shown in the embodiment, an electronic water level switch for automatic pump control includes a water level sensor 1 capable of testing a water level signal and a water level sensor 1 The test signal can realize the control circuit board part 2 of the pump's stop working state switching, wherein the water level sensor 1 is located outside the pump chamber 3 and is fixed to the pump inner wall 4 to control the circuit board part 2 It is fixed in the motor chamber 5 of the pump, and the water level sensor 1 is led out with two electrodes, wherein one end of the first electrode 6 extends to the pump chamber through which the pump delivers liquid 3 Internally, of course, one end of the first electrode may also extend to the inside of the pipe joint through which the pump delivers liquid or the inside of the pipeline, the other end of which extends out of the pump chamber 3, and the second electrode 7 is located in the pump chamber 3 Externally, and lower than the first electrode 6 in the horizontal position, there is a height difference of 150 mm between the two.
实施例 2 ： Example 2:
本实施例中所提供的一种泵自动控制用电子水位开关，其大体结构与实施例 1 一致，如图 3 所示，但是本实施例中第一电极 6 位于泵腔 3 外的一端上还电连接有依着泵体可进行垂直升降调节的导电滑块 10 ，通过调节导电滑块 10 的垂直高度，可以随意设定泵的开启水位以及停止水位；而且当第一电极 6 上的导电滑块 10 移动到与第二电极 7 接触时，此时泵便会处于常开状态，以便其实际使用需求。 The electronic water level switch for automatic pump control provided in this embodiment has the same general structure as that of the embodiment 1, as shown in FIG. In the embodiment, the first electrode 6 is located at one end of the pump chamber 3 and is electrically connected to the conductive slider 10 which can be vertically adjusted according to the pump body. The conductive slider 10 is adjusted. The vertical height, the water level of the pump can be set arbitrarily and the water level can be stopped; and when the conductive slider 10 on the first electrode 6 moves to the second electrode 7 When in contact, the pump will be in a normally open state for its actual use.
实施例 3 ： Example 3:
本实施例中所提供的一种泵自动控制用电子水位开关，其大体结构与实施例 2 一致，如图 4 所示，但是本实施例中第一电极 6 位于泵腔 3 外的一端和第二电极 7 上均电连接有依着泵体可进行垂直升降调节的导电滑块 10 ，并且第二电极 7 电连接的导电滑块 10 要位于第一电极 6 电连接的导电滑块 10 的上方，通过调节导电滑块 10 的垂直高度，可以随意设定泵的开启水位以及停止水位；而且当第一电极 6 上的导电滑块 10 移动到与第二电极 7 或者第二电极 7 上的导电滑块 10 接触时，此时泵便会处于常开状态，以便其实际使用需求。 The electronic water level switch for automatic pump control provided in this embodiment has the same general structure as that of the embodiment 2, as shown in FIG. As shown, in the present embodiment, the first electrode 6 is located at one end of the pump chamber 3 and the second electrode 7 is electrically connected to the conductive slider 10 which can be vertically adjusted according to the pump body, and the second electrode 7 The electrically connected conductive slider 10 is to be placed above the electrically conductive slider 10 to which the first electrode 6 is electrically connected, by adjusting the electrically conductive slider 10 The vertical height of the pump can be set to the water level of the pump and the water level is stopped; and when the conductive slider 10 on the first electrode 6 is moved to the conductive slider 10 on the second electrode 7 or the second electrode 7 When in contact, the pump will be in a normally open state for its actual use.

Claims (1)

1.一种泵自动控制用电子水位开关，包括一个能够测试水位信号的水位传感器（1）以及一个通过接收上述水位传感器（1）的测试信号能够实现泵的停开工作状态切换的控制线路板部分（2），其特征是所述的水位传感器（1）上引出有两个电极，其中第一电极（6）的一端延伸至泵输送液体所流过的泵腔（3）内部或者管路接头（8）内部或者管路（9）内部，其另一端延伸出泵腔（3），第二电极（7）位于泵腔（3）外部，并且在水平位置上要低于第一电极（6）。 1. An electronic water level switch for automatic pump control, comprising a water level sensor (1) capable of testing a water level signal and a control circuit board capable of switching a pumping operation state by receiving a test signal of the water level sensor (1) Part (2), characterized in that the water level sensor (1) has two electrodes, wherein one end of the first electrode (6) extends to the inside of the pump chamber (3) through which the pump delivers liquid or the pipeline Inside the joint (8) or inside the pipe (9), the other end extends out of the pump chamber (3), and the second electrode (7) is located outside the pump chamber (3) and is lower than the first electrode in the horizontal position ( 6).
2. 根据权利要求1所述的一种泵自动控制用电子水位开关，其特征是在所述的第一电极（6）位于泵腔（3）外的一端上或/和第二电极（7）上均电连接有依着泵体可进行垂直升降调节的导电滑块（10）。  2. An electronic water level switch for automatic pump control according to claim 1, wherein said first electrode (6) is located on one end of the pump chamber (3) or/and on the second electrode (7) The electric connection has a conductive slider (10) that can be vertically adjusted according to the pump body.
PCT/CN2014/095724 2014-07-11 2014-12-30 Electronic water level switch for automatic control of pump WO2016004743A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112014006742.3T DE112014006742B4 (en) 2014-07-11 2014-12-30 Electronic water level switch for automatic control of a pump
DE212014000268.0U DE212014000268U1 (en) 2014-07-11 2014-12-30 Electronic water level switch for automatic control of a pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201420383705.1U CN203962360U (en) 2014-07-11 2014-07-11 The automatic control of pump electronic water level switch
CN201420383705.1 2014-07-11

Publications (1)

Publication Number Publication Date
WO2016004743A1 true WO2016004743A1 (en) 2016-01-14

Family

ID=51922954

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/095724 WO2016004743A1 (en) 2014-07-11 2014-12-30 Electronic water level switch for automatic control of pump

Country Status (3)

Country Link
CN (1) CN203962360U (en)
DE (2) DE112014006742B4 (en)
WO (1) WO2016004743A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203962360U (en) * 2014-07-11 2014-11-26 君禾泵业股份有限公司 The automatic control of pump electronic water level switch
KR101724478B1 (en) * 2015-07-30 2017-04-07 현대자동차 주식회사 pump module

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10227287A (en) * 1997-02-14 1998-08-25 Taisei Corp Operation control device of water supply pump by precipitation
CN201560923U (en) * 2009-11-04 2010-08-25 沂源县鲁村煤矿有限公司 Automatically-controlled water pumping device
CN201605630U (en) * 2009-09-29 2010-10-13 刘冰清 Automatic domestic wastewater recycling device
US20110253236A1 (en) * 2009-03-17 2011-10-20 Kevin Le Novel electromagnetic coupling jet apparatus
CN202492923U (en) * 2012-03-25 2012-10-17 徐州科讯工业自动化技术有限公司 Automatic drainage system for water accumulated on road of overpass
CN203962360U (en) * 2014-07-11 2014-11-26 君禾泵业股份有限公司 The automatic control of pump electronic water level switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121577B (en) * 1959-05-02 1962-01-11 Bosch Gmbh Robert Drum washing machine with automatic regulation of the water supply by a water level switch
DE3109137C2 (en) * 1981-03-11 1985-07-25 Bernhard 8071 Lenting Kessel Method for starting an electric motor of a sewage pump and an electric motor-driven sewage pump
DE3607466A1 (en) * 1986-03-07 1987-09-24 Blum Albert PUMP UNIT WITH A LEVEL SWITCHING DEVICE
FR2824600B1 (en) * 2001-05-09 2004-02-20 Ksb Sa MOTOR PUMP GROUP WHICH SHUT DOWN BY CURRENT ANALYSIS
DE102011120837B4 (en) * 2011-12-13 2014-10-16 AL-KO Geräte GmbH Submersible pump for liquid with automatic switching device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10227287A (en) * 1997-02-14 1998-08-25 Taisei Corp Operation control device of water supply pump by precipitation
US20110253236A1 (en) * 2009-03-17 2011-10-20 Kevin Le Novel electromagnetic coupling jet apparatus
CN201605630U (en) * 2009-09-29 2010-10-13 刘冰清 Automatic domestic wastewater recycling device
CN201560923U (en) * 2009-11-04 2010-08-25 沂源县鲁村煤矿有限公司 Automatically-controlled water pumping device
CN202492923U (en) * 2012-03-25 2012-10-17 徐州科讯工业自动化技术有限公司 Automatic drainage system for water accumulated on road of overpass
CN203962360U (en) * 2014-07-11 2014-11-26 君禾泵业股份有限公司 The automatic control of pump electronic water level switch

Also Published As

Publication number Publication date
DE212014000268U1 (en) 2017-01-26
DE112014006742B4 (en) 2018-11-08
DE112014006742T5 (en) 2017-05-18
CN203962360U (en) 2014-11-26

Similar Documents

Publication Publication Date Title
CN101988780A (en) Anti-condensation refrigerator and anti-condensation control method
WO2016004743A1 (en) Electronic water level switch for automatic control of pump
CN201837508U (en) SF6 gas leakage monitoring alarm system
CN105762012A (en) Water dispenser liquid gravity energization control device
CN103859608A (en) PTC heating piece heating flue-cured tobacco type electronic cigarette
CN103543647B (en) A kind of thick line check processing circuit
CN105322328A (en) Wiring board
CN207393453U (en) It is a kind of that there is the dry water pump for turning self-protection function
CN203811205U (en) High-pressure cleaning equipment monitor
CN204052278U (en) The wireless zoned dust pelletizing system of RF of band vibration assisted dust-collecting
CN110863979B (en) Electrode type liquid level drainage control system and control method
CN206930740U (en) A kind of high-temperature silicon disulfide rubber insulative pipe sleeve detection means
CN104454485B (en) Water pump controller
CN203991489U (en) Subregion dust pelletizing system with vibration assisted dust-collecting
CN104570898A (en) Alarm device for ore pulp leakage
CN109406742A (en) Magnetic force power switch and water quality detection equipment under pressure-resistant water proof equipment environment
CN210255805U (en) Automatic change test fixture
CN203991486U (en) Vibration subregion dust pelletizing system based on the control of main frame intelligent wireless
CN203414832U (en) A basic structure of a pressure controller and a pressure controller
CN104039032B (en) Electromagnetic heating circuit and control method thereof and control device
CN203991485U (en) Vibration subregion dust pelletizing system based on main frame WIFI wireless regulation and control
CN203991488U (en) Electromagnetically vibrating subregion dust pelletizing system
CN103324213A (en) Basic structure of pressure controller and pressure controller
CN203535414U (en) Thick yarn detection processing circuit
CN102723244A (en) Control method for permanent-magnetic circuit breaker

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14897021

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 112014006742

Country of ref document: DE

Ref document number: 212014000268

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14897021

Country of ref document: EP

Kind code of ref document: A1