EP3875765A1 - Tauchpumpe mit berührungsempfindlichen sensoren - Google Patents

Tauchpumpe mit berührungsempfindlichen sensoren Download PDF

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Publication number
EP3875765A1
EP3875765A1 EP20160303.2A EP20160303A EP3875765A1 EP 3875765 A1 EP3875765 A1 EP 3875765A1 EP 20160303 A EP20160303 A EP 20160303A EP 3875765 A1 EP3875765 A1 EP 3875765A1
Authority
EP
European Patent Office
Prior art keywords
submersible pump
sensors
pump
level
liquid level
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP20160303.2A
Other languages
English (en)
French (fr)
Inventor
Johannes Gungl
Christian Drößler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Husqvarna AB
Original Assignee
Husqvarna AB
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 Husqvarna AB filed Critical Husqvarna AB
Priority to EP20160303.2A priority Critical patent/EP3875765A1/de
Priority to EP20819779.8A priority patent/EP4115085B1/de
Priority to CN202080097955.7A priority patent/CN115280018A/zh
Priority to PCT/EP2020/085310 priority patent/WO2021175474A1/en
Publication of EP3875765A1 publication Critical patent/EP3875765A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged

Definitions

  • the present disclosure relates to a submersible pump. More specifically, the present disclosure relates to the submersible pump which provides integrated liquid-level sensing and control.
  • a submersible pump (or sub pump, or electric submersible pump (ESP)) is a device which has a hermetically sealed motor close-coupled to a pump body. The whole assembly is submerged in a fluid to be pumped. Typically, submersible pumps are used to push the fluid to desired locations.
  • ESP electric submersible pump
  • the '156 reference provides a submersible pump.
  • the pump has a pump housing which is adapted for submersion in a body of liquid whose level is to be controlled.
  • the pump has a pump body forming a main compartment and an auxiliary compartment as an integral part of the body.
  • Upper and lower electric-field sensors are mounted in the auxiliary compartment. The upper sensor produces a signal that turns on the motor after a surface of a liquid body rises to a predetermined elevation, where the turning on of the motor is delayed by a predetermined delay interval.
  • the lower sensor produces a signal that turns off the motor after the surface of the liquid body drops to another predetermined elevation.
  • a submersible pump which is adapted for submersion in a body of liquid whose level is to be controlled.
  • the objective is at least partially achieved by a submersible pump that includes a pump body.
  • the pump body forms a main compartment having an intake and an output for a liquid.
  • the pump body is adapted for submersion in a body of liquid whose level is to be controlled.
  • the submersible pump is provided with one or more sensors that enable the submersible pump to operate within a threshold operating level.
  • the threshold operating level is between a lower liquid level and an upper liquid level set based on a user action associated with the one or more sensors.
  • the one or more sensors of the pump are stationary touch sensitive sensors which are integrated in or attached to the pump body (102).
  • the stationary touch sensitive sensors help in setting a desired liquid level (i.e. the threshold operating level) of the submersible pump based upon the user action (i.e. user touch).
  • Being stationary sensors does not allow them to move along relative the pump housing substantially perpendicular to the liquid level, while on the other hand when being realized as switches at least part of them can be pressed substantially orthogonal in respect to the pumps main compartment.
  • the present disclosure provides a simple, efficient, and user-friendly submersible pump which allows user-action based control of the threshold operating level of the submersible pump.
  • the one or more sensors are capacitive touch sensors.
  • the capacitive touch sensors allow to adjust the control system without the need for any movable components.
  • the one or more sensors are switches.
  • the use of a line of switches allow to adjust the control system without the need for any components that can be moved along the pump housing substantially perpendicular to the liquid level, while on the other hand at least part of them can be pressed substantially orthogonal in respect to the pumps main compartment.
  • the user action includes a preset gesture for setting the desired liquid level.
  • the preset gesture allows to start or end the functioning (i.e. the threshold operating level) of the submersible pump.
  • the user action includes swiping the one or more sensors between a top and a bottom of the pump body to set the desired liquid level. This allows to define working range for water level for the submersible pump, and as a result prevent overflow of water.
  • the preset gesture includes touching the one or more sensors for a fixed time in order to set the desired liquid level.
  • the preset gesture may be customized based upon user preferences or any other factor associated with the submersible pump.
  • the preset gesture includes one or more of a swipe, a press (in particular a press of longer duration), and a double tap.
  • the preset gesture may be selected from any known or used gesture that finds relevance for the submersible pump.
  • the submersible pump includes an indicator to show the desired liquid level which is set after the user action.
  • the indicator serves to make the user aware about the desired liquid level set for the submersible pump.
  • the indicator is one or more of a LED, and a buzzer.
  • Such indicator(s) allow to have a safe, and user-friendly working of the submersible pump.
  • the upper liquid level and the lower liquid level are selected separately. Wherein preferably the separate selection occurs sequentially. In advantageous manner this separate selection process further improves the intuitively of the design.
  • the one or more sensors are integrated in the pump body.
  • the pump the cost for manufacturing the submersible pump decreases as there are less individual components to assemble.
  • the touch of the one or more touch sensitive sensors allows to adjust the operational mode of the pump .
  • this is done by using one or more fingers of a user and touching a different combination of the touch sensitive sensors for a longer time or exhibiting multiple touches, preferably a double touch.
  • a user touches and holds both touch sensitive sensors on the top of the pump body for five seconds the submersible pump will start to run continuously or alternatively stop immediately.
  • this allows to avoid the need for separate buttons or knobs on the pump for adjusting its operational parameters. This reduces manufacturing costs and makes the pump more fault prove.
  • FIG. 1 illustrates a submersible pump 100.
  • the submersible pump 100 includes a pump body 102.
  • the pump body 102 forms a main compartment 104.
  • the pump includes a power cable 105 that serves to supply a desired electric power/current for the functioning of the submersible pump 100.
  • the main compartment 104 has an intake 106 (on the bottom side of the pump body 102 thus not visible with the figures showing the exemplary embodiment) and an output 108 for a liquid 110 (shown in FIG. 2 ).
  • the liquid 110 is pumped up from the intake 106 and pumped out from the output 108.
  • the intake 106 may be provided around the bottom of the pump 100 while the output 108 may be behind the main compartment 104 as per application or implementation requirements.
  • the submersible pump 100 includes one or more sensors 112.
  • the one or more stationary and touch sensitive sensors 112 which enable the submersible pump 100 to operate within a threshold operating level 114.
  • the one or more sensors 112 may be present between a top 122 and a bottom 124 of the pump body 102 and are arranged in a direction substantially normal to the water level.
  • the submersible pump 100 has a preset gesture 140 for setting a desired liquid level (i.e. the threshold operating level 114 ).
  • the preset gesture 140 is shown with a doubled-headed arrow which signifies up and/or down movement of the preset gesture 140 as per movement of a hand 120, however actual implementation of the preset disclosure may have any other type/position/setting for the preset gesture 140.
  • the one or more stationary and touch sensitive sensors 112 may be integrated with the pump body 102.
  • the integration of the one or more sensors 112 may allow protection from impurities such as dirt, sand or any such damage known in art. This will also allow the one or more sensors 112 to remain protected from getting jammed or any otherwise adjustments.
  • the one or more sensors 112 may be affixed at any location other than around the outer face or surface of the pump body 102 to avoid any mechanical damage or other wear associated with typical working of the submersible pumps 100.
  • the one or more sensors 112 may be one or more of a resistive sensor, a surface capacitive sensor, a projected capacitive sensor, a surface acoustic wave sensor, an infrared sensor and the like. It is also possible to realize the one or more stationary and touch sensitive sensors 112 as an arrangement of individual switches.
  • the one or more sensors 112 may be touch sensitive sensors which are integrated with the pump body 102. The touch sensitive sensors help in setting a desired liquid level (i.e. the threshold operating level 114 ) of the submersible pump 100 based upon the user action (i.e. user touch) by use of the hand 120.
  • the one or more sensors 112 may be capacitive touch sensors, or any other sensor as used or known in the art.
  • the submersible pump 100 may be adjustable, operable and intuitively configurable by a finger touch by the hand 120 such as the preset gesture 140.
  • the capacitive sensors 112 need not to come in direct contact with the liquid 110 to be measured.
  • the capacitive sensors 112 avoid resistance of water between electrodes of the submersible pump 100.
  • the capacitive sensors 112 measure the change of capacitance when the dielectric (air) is replaced by the liquid 110.
  • the submersible pump 100 may have low susceptibility to electro-chemical corrosion risks.
  • the preset gesture 140 may include one or more of a tap, a double tap, a drag and drop, a flick, a touchdown and drag, a touchdown and hold, a slide to scroll, and the like.
  • the preset gesture 140 may be selected from any known or used gesture that finds relevance for the submersible pump 100.
  • the preset gesture 140 may include touching the one or more sensors 112 for a fixed time in order to set the desired liquid level.
  • the preset gesture 140 may include one or more of a swipe, a long press, and a double tap.
  • the preset gesture 140 allows to start or end the functioning (i.e. the threshold operating level 114 ) of the submersible pump 100.
  • the one or more sensors 112 present between the top 122 and the bottom 124 of the pump body 102 may be swiped or configured as desired to define working range for a water level 126 (shown in FIG. 2 ) for the submersible pump 100, and as a result prevent overflow of water.
  • FIG. 2 illustrates the submersible pump 100 working within the threshold operating level 114.
  • the threshold operating level 114 is between a lower liquid level 132 and an upper liquid level 126 set based on a user action (say by the hand 120 ) associated with the one or more sensors 112.
  • the pump body 102 is adapted for submersion in a body of the liquid 110 whose level is to be controlled.
  • the submersible pump 100 stops functioning as the water level falls below the lower liquid level 132.
  • the upper activated sensor 118 may be done by swiping that starts around the top end of the sensor 112 down to the desired switch on level and then release the finger touch from the sensor surface 128 to confirm it.
  • the water level 126 is below the upper activated sensor 118.
  • the pump 100 remains in the current status, means when being currently switched on the pump 100 will continue to pump water and will switch off as soon as the water level 126 falls below the lower activated sensor 116.
  • FIG. 3 illustrates the submersible pump 100 which includes an indicator 114 to show the desired liquid level (i.e. the threshold operating level 114 ) which is set after the user action (say by the hand 120 ).
  • the indicator 114 is one or more of a LED, and a buzzer.
  • the possible indicator 114 e.g. LED behind a half transparent surface
  • the LED indicator may make it possible to check the switching points, which may be programmed before by a check function. So, it may not be necessary to repeat different steps of the programming procedure.
  • Such indicator(s) 114 allow to have a safe, and user-friendly working of the submersible pump 100.
  • FIG. 4 illustrates the submersible pump 100 with a lower liquid level 132 below the lower activated sensor 116 of the threshold operating level 114.
  • the submersible pump 100 may not work when the water level 132 point is below the lower activated sensor 116.
  • swiping by the preset gesture 140 may be started at the bottom 124 (for the lower activated sensor 116 ) of the one or more sensors 112 towards the upper activated sensor 118 and release the sensor surface 128 to confirm the threshold operating level 114.
  • the submersible pump 100 may be set according to need of the user.
  • the threshold operating level 114 may be varied multiple times. During application of the submersible pump 100 there may be change in volume (and thereby the level) of the liquid 110, the level of the liquid 110 may reduce or come below the water level 132 point leading to switching off of the submersible pump 100.
  • the submersible pump 100 may be configured to prompt a user (such as smart notifications to smartphone and the like) or take any other action whenever the level of the liquid 110 goes above the activated sensor 118 or significant below the lower activated sensor 116. Additionally, or alternatively, the submersible pump 100 prompt the user and inform him about successful pumping action whenever the level of the liquid 110 comes to an acceptable level i.e. between the upper activated sensor 118 and the lower activated sensor 116.
  • FIG. 5 illustrates the submersible pump 100 with an authentication feature 130.
  • the authentication feature 130 refers to a program field, or any used or known authentication means of the relevant art.
  • the preset gesture 140 may be started, changed, or controlled by the authentication feature 130.
  • the authentication feature 130 may be touched (before the adjustment) to start or end the adjustment process or by multiple touch (such as double touch) on the sensor surface 128.
  • the authentication feature 130 allows multiple user profiles or settings to be stored by the submersible pump 100.
  • the submersible pump 100 casing may include different kinds of metals, like chrome, stainless steel, polymers and the like.
  • the casing is that it is hermetically sealed. This prevents high repair costs and prevents motor from issues related to the liquid 110 leakage, among others.
EP20160303.2A 2020-03-02 2020-03-02 Tauchpumpe mit berührungsempfindlichen sensoren Withdrawn EP3875765A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20160303.2A EP3875765A1 (de) 2020-03-02 2020-03-02 Tauchpumpe mit berührungsempfindlichen sensoren
EP20819779.8A EP4115085B1 (de) 2020-03-02 2020-12-09 Tauchpumpe mit berührungsempfindlichen sensoren
CN202080097955.7A CN115280018A (zh) 2020-03-02 2020-12-09 具有触敏传感器的潜水泵
PCT/EP2020/085310 WO2021175474A1 (en) 2020-03-02 2020-12-09 Submersible pump with touch sensitive sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20160303.2A EP3875765A1 (de) 2020-03-02 2020-03-02 Tauchpumpe mit berührungsempfindlichen sensoren

Publications (1)

Publication Number Publication Date
EP3875765A1 true EP3875765A1 (de) 2021-09-08

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP20160303.2A Withdrawn EP3875765A1 (de) 2020-03-02 2020-03-02 Tauchpumpe mit berührungsempfindlichen sensoren
EP20819779.8A Active EP4115085B1 (de) 2020-03-02 2020-12-09 Tauchpumpe mit berührungsempfindlichen sensoren

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20819779.8A Active EP4115085B1 (de) 2020-03-02 2020-12-09 Tauchpumpe mit berührungsempfindlichen sensoren

Country Status (3)

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EP (2) EP3875765A1 (de)
CN (1) CN115280018A (de)
WO (1) WO2021175474A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4328452A1 (de) * 2022-08-24 2024-02-28 Ningbo Junhe Intelligent Technology Co., Ltd. Tauchpumpe und verfahren zur automatischen flüssigkeitsstandssteuerung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030094043A1 (en) * 2001-11-20 2003-05-22 Askoll Holding S.R.L. Device for sensing the level of liquid, particularly for submersed pumps
US20100154534A1 (en) * 2008-12-23 2010-06-24 Little Giant Pump Company Method and apparatus for capacitive sensing the top level of a material in a vessel
EP1929156B1 (de) 2005-08-24 2010-12-22 Johnson Pumps of America, Inc. Eintauchbare pumpe mit integriertem flüssigkeitsstandfühler und kontrollsystem
EP3091234A1 (de) * 2015-04-30 2016-11-09 Einhell Germany AG Tauchpumpe
US20180223863A1 (en) * 2017-02-03 2018-08-09 Flow Control LLC Bilge pump having outside sensing surface with ribs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705456A (en) * 1986-08-08 1987-11-10 Consolidated Electric Co. Control panel structure for a liquid pumping station
DE4244417A1 (de) * 1992-12-30 1994-07-07 Wilo Gmbh Vorrichtung zum Ein- und Ausschalten einer Tauchmotorpumpe
US5503533A (en) * 1994-05-26 1996-04-02 Metropolitan Pump Company Fluid level control panel structure for multi-pump system
US11022124B2 (en) * 2017-04-10 2021-06-01 Logical Concepts, Inc. Whole home water appliance system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030094043A1 (en) * 2001-11-20 2003-05-22 Askoll Holding S.R.L. Device for sensing the level of liquid, particularly for submersed pumps
EP1929156B1 (de) 2005-08-24 2010-12-22 Johnson Pumps of America, Inc. Eintauchbare pumpe mit integriertem flüssigkeitsstandfühler und kontrollsystem
US20100154534A1 (en) * 2008-12-23 2010-06-24 Little Giant Pump Company Method and apparatus for capacitive sensing the top level of a material in a vessel
EP3091234A1 (de) * 2015-04-30 2016-11-09 Einhell Germany AG Tauchpumpe
US20180223863A1 (en) * 2017-02-03 2018-08-09 Flow Control LLC Bilge pump having outside sensing surface with ribs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4328452A1 (de) * 2022-08-24 2024-02-28 Ningbo Junhe Intelligent Technology Co., Ltd. Tauchpumpe und verfahren zur automatischen flüssigkeitsstandssteuerung

Also Published As

Publication number Publication date
CN115280018A (zh) 2022-11-01
EP4115085B1 (de) 2023-12-06
WO2021175474A1 (en) 2021-09-10
EP4115085A1 (de) 2023-01-11

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