EP2992212B1 - Pumpe mit mehrspannungselektronik mit trockenlauf- und überstromschutz - Google Patents

Pumpe mit mehrspannungselektronik mit trockenlauf- und überstromschutz Download PDF

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Publication number
EP2992212B1
EP2992212B1 EP14791997.1A EP14791997A EP2992212B1 EP 2992212 B1 EP2992212 B1 EP 2992212B1 EP 14791997 A EP14791997 A EP 14791997A EP 2992212 B1 EP2992212 B1 EP 2992212B1
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EP
European Patent Office
Prior art keywords
pump
voltage
current value
signal processor
predetermined
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.)
Active
Application number
EP14791997.1A
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English (en)
French (fr)
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EP2992212A4 (de
EP2992212A1 (de
Inventor
David L. Phillips
Humberto Valenzuela Meza
Derrick T. Tran
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Flow Control LLC
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Flow Control LLC
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Publication date
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Publication of EP2992212A4 publication Critical patent/EP2992212A4/de
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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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B49/065—Control using electricity and making use of computers
    • 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
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0202—Voltage

Definitions

  • the present invention relates to a pump system and more particularly to a pump system using multi voltage electronics and multiple voltage settings for providing run dry and over current protection to a particular pump model, as well as providing multiple flow rate depending on a selected voltage setting.
  • Some shortcomings of these known pump designs include the fact that multiple pump models are required for different voltages. Moreover, when the pumps run dry, they are often damaged and require maintenance.
  • US 2009/0213515 discloses a multichannel active sensing and switching device (ASSD) 2 having a multiple sensing and switching module 4 and a controller module 6, e.g., as described in paragraph [0057].
  • ASSD active sensing and switching device
  • a controller module responds to the load type sensor signaling and provides the controller signaling to control the operation of different load types in real time so that events are handled as real time tasks immediately and concurrently.
  • US 2004/0265135 discloses a vacuum pumping device having an oil mechanical pump and an electronic control device for supplying an electric motor with power by a voltage signal SU.
  • the electronic control device has a frequency converter that controls an excitation frequency Fecc of the voltage signal SU powering the motor. In transient conditions the excitation frequency Fecc of the power supply signal SU for the motor may be varied so as to keep the speed of the pump constant.
  • US 2006/0130504 discloses a vapor compression system having a fluid circuit and 1st and 2nd blower devices.
  • the fluid circuit circulates a refrigerant and has a variable speed compressor and 1st and 2nd heat exchangers.
  • PCBA printed circuit board assembly
  • the present invention includes a pump featuring a signal processor, including where the signal processor forms part of a printed circuit board assembly (PCBA), configured to:
  • PCBA printed circuit board assembly
  • the signal processor including the PCBA, is configured to provide control signalling to shut off the pump after the predetermined time if the current draw of the pump is lower than the predetermined low current level or is higher than the predetermined high current level, where the predetermined low current level and the predetermined high current level depend on the voltage being supplied to the motor to run the particular pump model.
  • the present invention includes one or more of the following features:
  • the signal processor including the PCBA, is configured to provide control signalling to shut off the pump after the predetermined time if the current draw of the pump is lower than the predetermined low current level or is higher than the predetermined high current level, where the predetermined low current level and the predetermined high current level depend on the voltage being supplied to the motor to run the particular pump model.
  • the signal processor including the PCBA, is configured to provide the control signalling to shut the pump off in order to protect the pump against a run dry and/or over current conditions of the pump.
  • the control signalling includes l blinking a rocker lamp if the current draw of the pump is either lower than the predetermined low current level or higher than the predetermined high current level.
  • the signal processor including the PCBA, is configured, programmed or adapted to run on the particular pump model having one input voltage, and may also be configured, programmed or adapted to run on a different particular pump model having a different input voltage.
  • the signal processor including the PCBA, may be configured with a respective software routine for each particular pump model, and implement the appropriate software routine based at least partly on the voltage being supplied to the motor to run the particular pump model.
  • the PCBA may be configured universally to run on numerous pump models.
  • the particular pump model forms part of a series of pumps having different voltage requirements, including a 12 volt pump, a 24 volt pump, or a 32 volt pump, etc.
  • each particular pump model has a respective motor having a corresponding voltage requirement.
  • the pump contains the PCBA inside its housing.
  • the present invention is a pump system featuring a power adapter in combination a pump having a signal processor, including where the signal processor forms part of a printed circuit board assembly (PCBA).
  • the power adapter includes voltage settings, each configured to be set by a user to provide a selected voltage.
  • the signal processor is configured to receive signaling containing information about the selected voltage being supplied to a motor to run the pump, and also containing information about whether a current draw of the pump is lower than a predetermined low current level or is higher than a predetermined high current level; and determine whether to shut off the pump after a predetermined time, based at least partly on the signaling received.
  • the pump system includes one or more of the following features: Each voltage setting corresponds to a respective flow rate of the pump.
  • the voltage settings includes at least two voltage settings, e.g., selected from a group that includes a 6 volt setting, a 9 volt setting, a 12 volt setting, an 18 volt setting and a 24 volt setting.
  • the PCBA is configured to receive sensed signaling from some combination of a fluid supply sensor, a pressure sensor, a fluid level sensor, and determine whether to shut off the pump after the predetermined time, based at least partly on the sensed signaling received, including when the fluid supply sensor, the pressure sensor or the fluid level sensor is activated.
  • the signal processor is configured to implement a start-up process, e.g., including detecting the selected voltage being supplied to the motor.
  • the start-up process includes priming the pump at the selected voltage; and either shutting off the pump after the predetermined time if the pump does not prime, or running the pump if the pump does prime.
  • the signal processor is configured to implement a normal operating mode process, e.g., including continuing to run the pump if the pump does prime; determining if the pump experiences a low current draw by comparing a sensed current being drawn by the pump to a respective predetermined low current value corresponding to the selected voltage detected; and shutting off the pump after the predetermined time if the sensed current is less than the respective predetermined low current value.
  • a normal operating mode process e.g., including continuing to run the pump if the pump does prime; determining if the pump experiences a low current draw by comparing a sensed current being drawn by the pump to a respective predetermined low current value corresponding to the selected voltage detected; and shutting off the pump after the predetermined time if the sensed current is less than the respective predetermined low current value.
  • the normal operating mode process also includes e.g., continuing to run the pump if the pump primes; determining if the pump experiences a high current draw by comparing a sensed current being drawn by the pump to a predetermined high current value; and shutting off the pump after the predetermined time if the sensed current is greater than the predetermined high current value.
  • the predetermined high current value includes a respective predetermined high current valve corresponding to the selected voltage detected.
  • the predetermined high current value includes a single high current value for any selected voltage detected.
  • the fluid supply sensor is configured to sense a fluid supply, and provide a fluid supply signal containing information about the fluid supply, including when the fluid supply is empty.
  • the pressure sensor is configured to sense a fluid pressure, and provide a fluid pressure signal containing information about the fluid pressure.
  • the fluid level sensor is configured to sense a fluid level, and provide a fluid level signal containing information about the fluid level.
  • the pump includes an on/off switch having an integrated light.
  • the integrated light is configured to receive light control signaling and either turn on when the pump is running or blink when the pump shuts off.
  • the signal processor is configured to provide the light control signaling.
  • the pump is configured to contain the power adapter so as form an integral pump system.
  • the power adapter is configured in the pump's housing with suitable selectable voltage settings adapted to extend outside and external to the housing for selecting by the user.
  • Possible applications may include, e.g., bag-in-box fluid transfer, bottled water dispensers, coffee machine auto-refill, beverage dispensers, general fluid transfer, water pressure systems, or chemical spraying systems.
  • Figures 1-4 show embodiments that formed part of the aforementioned parent patent application serial no. 13/708,075 ; and Figures 5-8 show embodiments that formed part of the aforementioned provisional patent application serial no. 61/818,147 , and which now form the basis for this CIP patent application.
  • FIG. 1 The Basic Pump 10
  • Figure 1 shows the present invention in the form of a pump generally indicated as 10 that includes a signal processor, including where the signal processor forms part of a printed circuit board assembly (PCBA) 12, configured to
  • the pump 10 may also include other pump components and parts generally indicated as 14 in Figure 1 that do not form part of the underlying invention, e.g., including a motor 14a, on/off switch 14b, a power supply jack 14c, a pressure switch 14d and a front end pumping portion 14e, as shown in Figures 2 and 3 .
  • the power supply jack 14c is configured for receiving or accepting 12/24/(possibly 32V+ as well) VDC as well as utilize an external wall mounted power supply to convert 115/230 VAC to run one pump model.
  • the pressure switches like element 14d are known in the art, may be configured to sense the pressure of fluid being pumped, and provide corresponding signaling, e.g.
  • Front end pumping portion like element generally indicated as element 14e may be configured for pumping the fluid or liquid of interest by the pump 10 and are known in the art, such that the scope of the invention is not intended to be limited to any particular type, kind or configuration of the same.
  • the signal processor including the PCBA 12, may be configured to provide control signalling to shut off the pump 10 after the predetermined time, e.g., if the current draw of the pump 10 is lower than the predetermined low current level or is higher than the predetermined high current level, where the predetermined low current level and the predetermined high current level depend on the voltage being supplied to the motor 14a ( Figure 2 ) to run the particular pump model.
  • the control signalling may contain information for turning or switching off the motor 14a.
  • the signal processor including the PCBA 12, may be configured to provide the control signalling to shut the pump 10 off in order to protect the pump 10 against a run dry and/or over current conditions of the pump, consistent with the pump control routine generally indicated as 20 shown in Figure 4 . For example, see steps 20d, 20h and 20k.
  • the control signalling may include blinking a rocker lamp when if the current draw of the pump is either lower than the predetermined low current level or higher than the predetermined high current level, consistent with the pump control routine 20 shown in Figure 4 . Again, see the steps 20d, 20h and 20k.
  • the control signalling may include turning a rocker lamp solid when power is removed from the pump 10. See steps 20g and 20i.
  • the signal processor including the PCBA 12, may be configured and programmed to run on the particular pump model having one input voltage, and may also be configured, programmed and/or suitably to run on a different particular pump model having a different input voltage for running a pump motor.
  • the signal processor including the PCBA 12, may be configured with at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured, with the at least one processor, to cause the signal processor to receive the signaling containing information about the voltage being supplied to the motor to run the particular pump model, and also containing information about whether the current draw of the pump is lower than the predetermined low current level or is higher than the predetermined high current level; and determine whether to shut off the pump after the predetermined time, based at least partly on the signaling received.
  • the present invention may also take the form of a method including steps for receive signaling containing information about a voltage being supplied to a motor such as 14a ( Figure 2 ) to run a particular pump model, and also containing information about whether a current draw of the pump 10 is lower than a predetermined low current level or is higher than a predetermined high current level; and determining whether to shut off the pump after a predetermined time, based at least partly on the signaling received.
  • the direct current voltage may be in a range of about 12-32 volts; and the alternating current voltage may be in a corresponding range of about 115/230 volts, although the scope of the invention is not intended to be limited to any particular voltage or voltage range.
  • the functionality of the signal processor, device or module and/or PCBA 12 may be implemented to receive the signaling, process the signaling therein and/or provide the control signaling, using hardware, software, firmware, or a combination thereof, although the scope of the invention is not intended to be limited to any particular embodiment thereof.
  • the signal processor, including the PCBA 12 may include, or take the form of, one or more microprocessor-based architectures having a microprocessor, a random access memory (RAM), a read only memory (ROM), input/output devices and control, data and address busing architecture connecting the same.
  • the apparatus 10 may include one or more other modules, components, processing circuits, or circuitry 14 for implementing other functionality associated with the underlying apparatus that does not form part of the underlying invention, and thus is not described in detail herein.
  • the one or more other modules, components, processing circuits, or circuitry may include random access memory, read only memory, input/output circuitry and data and address buses for use in relation to implementing the signal processing functionality of the signal processor, or devices or components, etc.
  • Figure 4 shows a flowchart generally indicated as 20 having steps 20a, 20b, 20c, ..., 20j and 20k for operating the pump 10, including for providing run dry and over current protection controller functionality, according to some embodiments of the present invention.
  • the signal processor including the PCBA 12, may be configured to execute a time out in order to turn the pump off, e.g., including in order to prevent the pump from emptying a container or reservoir of liquid if there should be any leaks in the system as a whole.
  • the executed time out feature may take the form of a predetermined time out, e.g., which may be set at 5 minutes and can be set for anytime, that is a safety feature to prevent the pump from emptying the container or reservoir of a fluid.
  • the executed time out feature may also be used as a safety shutoff in general.
  • the present invention may also be used in, or form part of, or used in conjunction with, any fluid handling application.
  • the scope of the invention is also not intended to be limited to being implemented in any particular type or kind of pump either now known or later developed in the future, and may include diaphragm pumps, positive displacement pumps, etc.
  • Typical diaphragm pumps known in the art are designed with single voltage/power input and deliver a specific flow/pressure rate, have no feedback input or limited to one type (typically a mechanical pressure switch or similar).
  • Some disadvantages of these prior art pumps include the following: Limited applications, flow rates and pressures are not adjustable, and they are not capable of different device/sensor input. Multiple motor/pump combinations are needed to achieve different flows and pressures.
  • the pump can have the capability to accept various voltage inputs (6/9/12/18/24 vdc) through a power adaptor. This will allow users to select different flow rates for their applications.
  • Different types of sensors can be integrated with the pump to monitor fluid supply, pressure, fluid level, etc. Reverse polarity, over-current, run-dry and time-out protections may also be integrated in the printed circuit board assembly (PCBA) and control algorithm software.
  • PCBA printed circuit board assembly
  • FIGs 5-8 show a pump system featuring a power adapter 250 ( Figure 8 ) in combination a pump 100 ( Figure 5 ) having a signal processor, e.g., which may take the form of element 12 in Figure 1 , and/or which may form part of a printed circuit board assembly (PCBA) 120 ( Figure 6 ).
  • PCBA printed circuit board assembly
  • the pump 100 may include a motor housing 110, the PCBA 120, a motor 140a, a light/rocker switch 140b, a DC jack 140c, mounting legs 140d 1 , 140d 2 and a pump head 140e.
  • the pump 100 may be configured as a diaphragm pump, and the pump head 140e may include standard diaphragm components, including a diaphragm, a wobbler plate, reciprocating pistons, check valves, etc., all of which would be appreciated by one skilled in the art.
  • the pump head 140e is not described in detail since it does not form part of the point of novelty of the underlying invention.
  • the power adapter 250 may include selectable voltage settings 256a, 256b, 256c, 256d, 256e, each configured to be set by a user so as to provide a selected voltage, e.g., to the motor 140a of the punmp 100.
  • the selectable voltage settings 256a, 256b, 256c, 256d, 256e may be a push button switch type, a slide/toggle switch type, etc.
  • the power adapter 250 may also include a wall plug 252 having prongs, as shown in Figure 8 , e.g., for plugging into a standard wall socket (not shown), and a housing 253 for containing the electronics associated with the selectable voltage settings 256a, 256b, 256c, 256d, 256e.
  • the power adapter 250 may also include a cord 254a and a coupler 254b for plugging into the DC jack 140c ( Figure 5 ) of the pump 100.
  • a person skilled in the art would be able to configured or implement such a power adapter without undue experimentation consistent with that disclosed herein, as well as that known in the prior art.
  • the scope of the invention is not intended to be limited to any particular type or kind of power adapter either now know or later developed in the future.
  • the pump 100 may be configured to contain in its housing a power adapter so as form an integrated pump system.
  • a power adapter like element 250 may be configured in the pump's housing, e.g., in the motor housing 110 ( Figure 5 ), with suitable selectable voltage settings like voltage settings 256a, 256b, 256c, 256d, 256e adapted to extend outside and external to the pump's housing for selecting by a user.
  • suitable selectable voltage settings like voltage settings 256a, 256b, 256c, 256d, 256e adapted to extend outside and external to the pump's housing for selecting by a user.
  • the housing 253 ( Figure 8 ) and the pump's housing, e.g., the motor housing 110 ( Figure 5 ) may be configured as one integral unit.
  • the signal processor may be configured to receive signaling containing information about the selected voltage, e.g., received from the power adapter 250 ( Figure 8 ), being supplied to the motor 140a to run the pump 100, and also containing information about whether a current draw of the pump 100 is lower than a predetermined low current level or is higher than a predetermined high current level; and determine whether to shut off the pump 100, e.g., after a predetermined time, based at least partly on the signaling received.
  • signaling containing information about the selected voltage, e.g., received from the power adapter 250 ( Figure 8 ), being supplied to the motor 140a to run the pump 100, and also containing information about whether a current draw of the pump 100 is lower than a predetermined low current level or is higher than a predetermined high current level; and determine whether to shut off the pump 100, e.g., after a predetermined time, based at least partly on the signaling received.
  • the voltage settings 256a, 256b, 256c, 256d, 256e may include at least two voltage settings, e.g., selected from a group that includes a 6 volt setting, a 9 volt setting, a 12 volt setting, an 18 volt setting and a 24 volt setting.
  • the scope of the invention is not intended to be limited to any particular voltage setting(s); and embodiments are envisioned using other types of voltage settings either now known or later developed in the future, e.g., including a 32 volt setting, depending on the particular application of the present invention.
  • Each voltage setting 256a, 256b, 256c, 256d, 256e may correspond to a respective flow rate of the pump.
  • the 6 volt setting may correspond to a first flow rate
  • the 9 volt setting may correspond to a second flow rate, e.g., that is higher than the first flow rate
  • the 12 volt setting may correspond to a third flow rate, e.g., that is higher than the second flow rate
  • the 18 volt setting may correspond to a fourth flow rate, e.g., that is higher than the third flow rate
  • the 24 volt setting may correspond to a fifth flow rate, e.g., that is higher than the fourth flow rate.
  • the scope of the invention is not intended to be limited to any particular flow rate(s); and embodiments are envisioned using other types of flow rate(s) either now known or later developed in the future, e.g., depending on the particular application of the present invention.
  • voltage signaling received by the DC jack 140c ( Figure 5 ) of the pump 100 from the coupler 154b of the power adapter 250 may be received and processed by the module 134 for receiving the input voltage as selectable input power shown in Figure 6 , and the voltage signaling may be provided from the module 134 to the PCBA 120 via leads 134a, 134b.
  • the PCBA 120 may be configured to receive sensed signaling from one or more sensors 130, e.g., including some combination of a fluid supply sensor, a pressure sensor, a fluid level sensor, and determine whether to shut off the pump 100 after the predetermined time, based at least partly on the sensed signaling received, including when the fluid supply sensor, the pressure sensor or the fluid level sensor is activated.
  • the fluid supply sensor may be configured to sense a fluid supply, and provide a fluid supply signal containing information about the fluid supply, including when the fluid supply is empty or exhausted.
  • the pressure sensor may be configured to sense a fluid pressure, and provide a fluid pressure signal containing information about the fluid pressure.
  • the fluid level sensor may be configured to sense a fluid level, and provide a fluid level signal containing information about the fluid level.
  • the PCBA 120 may be coupled to the one or more sensors using leads 130a, 130b, and the sensed signaling may be received along the leads 130a, 130b.
  • the scope of the invention is not intended to be limited to any particular sensor(s); and embodiments are envisioned using other types of sensor(s) either now known or later developed in the future, e.g., depending on the particular application of the present invention.
  • fluid supply sensors, pressure sensors, and fluid level sensors are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future.
  • the pump 100 may include an on/off switch 132, e.g., having an integrated light.
  • the integrated light may be configured to receive light control signaling and either turn on when the pump 100 is running or blink when the pump 100 shuts off.
  • the signal processor may be configured to provide the light control signaling, e.g., via leads 132a, 132b, coupling the on/off switch 132 and the PCBA 120 together.
  • the scope of the invention is not intended to be limited to any particular on/off switch; and embodiments are envisioned using other types or kinds of on/off switch either now known or later developed in the future, e.g., depending on the particular application of the present invention, including a light switch having LED lighting.
  • on/off switches e.g., having an integrated light, are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future.
  • the signal processor may be configured to implement a control algorithm 200, e.g., that may include a start-up process 202 and/or a normal operating mode 204.
  • a control algorithm 200 e.g., that may include a start-up process 202 and/or a normal operating mode 204.
  • the signal processor may be configured to implement the start-up process 202, e.g., including using one or more steps 202a, 202b, 202c and 202d.
  • step 202a power may be applied to the pump 100 by the power adapter 250 ( Figure 8 ), e.g., in the form of an voltage setting output corresponding to the selectable voltage setting 256a, 256b, 256c, 256d, 256e and provided from the coupler 254b of the power adapter 250 to the DC jack 140c of the pump 100.
  • step 202a may include the user plugging in the power adapter 250 into a wall socket (not shown), plugging the coupler 254b of the power adapter 250 into the DC jack 140c of the pump 100, and selecting one of the selectable voltage setting 256a, 256b, 256c, 256d, 256e to determine what voltage setting output will be provided by the power adapter 250 to the motor 140a of the pump 100.
  • the signal processor may be configured to implement the control algorithm software for detecting the selected voltage being supplied to the motor 140a. If the signal processor does not detect the selected voltage being supplied to the motor 140a, then step 202a may need to be re-implemented, e.g., by the user.
  • Algorithms for detecting a voltage being supplied to a motor are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future. Moreover, one skilled in the art would be able to implement such an algorithm for detecting such a voltage being supplied to such a motor like motor 140a without undue experimentation based on that disclosed in the instant patent application.
  • the signal processor may be configured to implement the control algorithm software for priming the pump 100 at the selected voltage.
  • the control algorithm software may be configured to prime the pump 100 based on the selected voltage, e.g., using a different control algorithm for each different selected voltage.
  • the control algorithm software may be configured to prime the pump 100, e.g., using one standard implementation for priming for each different selected voltage.
  • Algorithms for priming pumps are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future. Moreover, one skilled in the art would be able to implement such an algorithm for priming such a pump like pump 100 without undue experimentation based on that disclosed in the instant patent application.
  • the signal processor may be configured to implement the control algorithm software for either shutting off the pump 100 after the predetermined time if the pump 100 does not prime, or running the pump 100 if the pump 100 does prime.
  • Algorithms for shutting off pumps after a predetermined time if a pump does not prime, or running the pump if the pump does prime, are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future.
  • one skilled in the art would be able to implement such an algorithm for shutting off or running such a pump like pump 100 without undue experimentation based on that disclosed in the instant patent application.
  • the signal processor may be configured to implement the normal operating mode process, e.g., including using one or more steps 204a, 204b, 204c, 204d, 204e, 204f and 204g.
  • the signal processor may be configured to implement the control algorithm software for continuing to run the pump 100 if the pump 100 primes.
  • Algorithms for running pumps if the pumps prime are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future. Moreover, one skilled in the art would be able to implement such an algorithm for running such a pump like pump 100 without undue experimentation based on that disclosed in the instant patent application.
  • the signal processor may be configured to implement the control algorithm software for determining if the pump 100 experiences a low current draw by comparing a sensed current being drawn by the pump 100 to a respective predetermined low current value corresponding to the selected voltage detected.
  • the respective predetermined low current value may be about 0.3 amps; if the selected voltage is in the range of 16-18 volts, then the respective predetermined low current value may be about 0.5 amps; and if the selected voltage is in the range of 22-24 volts, then the respective predetermined low current value may be about 0.7 amps.
  • Algorithms for determining if pumps experience a low current draw by comparing sensed current drawn to some predetermined current value are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future. Moreover, one skilled in the art would be able to implement such an algorithm for making such a determination for such a pump like pump 100 without undue experimentation based on that disclosed in the instant patent application.
  • the signal processor may be configured to implement the control algorithm software associated with step 202d, e.g., for shutting off the pump 100 after the predetermined time if the sensed current is less than the respective predetermined low current value, including blinking the light on the on/off switch 132, consistent with that set forth above.
  • the signal processor may be configured to shut the pump 100 off and blink the light on the on/off switch 132, e.g., by sending suitable control signaling to the pump 100 and the on/off switch 132.
  • the signal processor may be configured to shut the pump 100 off and blink the light on the on/off switch 132.
  • the signal processor may be configured to shut the pump 100 off and blink the light on the on/off switch 132. If the determination in step 204b is no, then the signal processor may be configured to implement the control algorithm software to continue to run the pump 100, consistent with step 204a.
  • the signal processor may be configured to implement the control algorithm software for determining if the pump 100 experiences a high current draw by comparing a sensed current being drawn by the pump 100 to a predetermined high current value, e.g. including a respective predetermined high current value corresponding to the selected voltage detected.
  • a predetermined high current value e.g. including a respective predetermined high current value corresponding to the selected voltage detected.
  • the functionality may form part of so-called over current protection and functionality. Embodiments are envisioned in which the predetermined high current value depends on the selected voltage, as well as in which one predetermined high current value is used for any selected voltage. If the determination in step 204c is no, then the signal processor may be configured to implement the control algorithm software to continue to run the pump 100, consistent with that set forth in relation to step 204a.
  • Algorithms for determining if pumps experience a high current draw by comparing sensed current drawn to some predetermined current value are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future. Moreover, one skilled in the art would be able to implement such an algorithm for making such a determination for such a pump like pump 100 without undue experimentation based on that disclosed in the instant patent application.
  • step 204d the signal processor may be configured to implement the control algorithm software for shutting off the pump, e.g., after the predetermined time, if the sensed current is greater than the respective predetermined high current value, e.g., consistent with that set forth in relation to step 202d.
  • the signal processor may be configured to implement the control algorithm software to determine if one or more of the sensors 130, e.g., including some combination of a fluid supply sensor, a pressure sensor, a fluid level sensor, is activated. If the determination in step 204e is yes, then in step 204f the signal processor may be configured to implement the control algorithm software for shutting off the pump, e.g., after the predetermined time, consistent with that set forth in relation to step 202d.
  • the functionality may form part of so-called run-dry functionality, e.g., when the liquid being pumped has been exhausted.
  • the signal processor may be configured to implement the control algorithm software to put the pump 100 in a standby mode, e.g., until pressure is released from the pump 100. If the determination in step 204e is no, then the signal processor may be configured to implement the control algorithm software to continue to run the pump 100, consistent with that set forth in relation to step 204a.
  • Algorithms for determining if sensors are activated e.g., including some combination of a fluid supply sensor, a pressure sensor, a fluid level sensor, are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future. Moreover, one skilled in the art would be able to implement such an algorithm for making such a determination for such a pump like pump 100 without undue experimentation based on that disclosed in the instant patent application.
  • the signal processor may be configured to implement the control algorithm software to determine if the pump 100 runs for more than a predetermined time, e.g., including a number of predetermined minutes.
  • the functionality may form part of so-called time-out capability and functionality. If the determination in step 204g is yes, then in step 204d the signal processor may be configured to implement the control algorithm software for shutting off the pump 100, e.g., after the predetermined time, consistent with that set forth in relation to step 202d. If the determination in step 204g is no, then the signal processor may be configured to implement the control algorithm software to continue to run the pump 100, consistent with that set forth in relation to step 204a.
  • Algorithms for determining how long a pump is running are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof either now known or later developed in the future. Moreover, one skilled in the art would be able to implement such an algorithm for making such a determination for such a pump like pump 100 without undue experimentation based on that disclosed in the instant patent application.
  • Possible applications may include, e.g., bag-in-box fluid transfer, bottled water dispensers, coffee machine auto-refill, beverage dispensers, general fluid transfer, water pressure systems, or chemical spraying systems.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Dc-Dc Converters (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Claims (14)

  1. Ein Pumpen-System (100) bestehend aus:
    einer Pumpe (10), die so konfiguriert ist, dass sie verschiedene Eingangsspannungen akzeptiert, die einer von einem Benutzer gewählten Spannungseinstellung entsprechen, und
    dass sie die Pumpe (10) mit einer unterschiedlichen Durchflussrate für eine bestimmte Anwendung auf Grundlage der gewählten Spannung betreibt, die einem Motor (14a, 140a) zugeführt wird, um die Pumpe (10) zu betreiben, wobei die Pumpe (10) einen Signalprozessor (12) aufweist,
    der Signalprozessor (12) ist konfiguriert:
    Signale zu empfangen,
    die Informationen über die gewählte Spannung enthalten, und auch
    Informationen darüber enthalten, ob eine Stromaufnahme der Pumpe (10) niedriger als ein vorbestimmter niedriger Stromwert entsprechend der gewählten Spannung oder höher als ein vorbestimmter hoher Stromwert entsprechend der gewählten Spannung ist,
    wobei der vorbestimmte niedrige Stromwert niedriger als der vorbestimmte hohe Stromwert ist, um einen Bereich zu bestimmen, der der gewählten Spannungseinstellung entspricht; und
    entsprechende Signale zu bestimmen, die Informationen darüber enthalten, ob die Pumpe (10) nach einer vorbestimmten Zeit abgeschaltet werden soll, wenn der gemessene Strom geringer als der jeweilige vorbestimmte niedrige Stromwert ist, um eine Trockenlauf- und Überstromschutzfunktionalität bereitzustellen, die zumindest teilweise auf den empfangenen Signalen basieren, gekennzeichnet durch
    ein Netzteil (250) mit Spannungseinstellungen, wobei jede Spannungseinstellung so konfiguriert ist, dass sie von einem Benutzer eingestellt werden kann, um die gewählte Spannung entsprechend der vom Benutzer für eine bestimmte Anwendung gewählten unterschiedlichen Durchflussrate bereitzustellen,
    wobei das Netzteil (250) so konfiguriert ist, dass es auf die vom Benutzer gewählte Spannungseinstellung reagiert und die gewählte Spannung entsprechend der Spannungseinstellung bereitstellt, und
    der Signalprozessor (12) Teil einer Leiterplattenbaugruppe (120) ist, im Folgenden als PCBA bezeichnet.
  2. Ein Pumpen-System (100) nach Anspruch 1, wobei jede Spannungseinstellung einer jeweiligen Durchflussrate der Pumpe (10) entspricht.
  3. Ein Pumpen-System (100) nach Anspruch 1, wobei die Spannungseinstellungen mindestens zwei Spannungseinstellungen umfassen, die aus einer Gruppe ausgewählt sind, die eine 6-Volt-Einstellung, eine 9-Volt-Einstellung, eine 12-Volt-Einstellung, eine 18-Volt-Einstellung und eine 24-Volt-Einstellung umfasst.
  4. Ein Pumpen-System (100) nach Anspruch 1, wobei der PCBA (120) so konfiguriert ist, dass er von einem Fluidversorgungssensor oder einem Drucksensor oder einem Fluidwertsensor erfasste Signale empfängt und bestimmt, ob die Pumpe (10) nach der vorbestimmten Zeit abgeschaltet werden soll, basierend zumindest teilweise auf den empfangenen erfassten Signalen, einschließend, dass der Fluidversorgungssensor, der Drucksensor oder der Fluidwertsensor aktiviert ist.
  5. Ein Pumpen-System (100) nach Anspruch 1,
    wobei der Signalprozessor (12) konfiguriert ist, um einen Startprozess zu implementieren, der umfasst:
    Erfassen der ausgewählten Spannung, die von dem Netzteil (250) an den Motor (14a) geliefert wird; und entweder umfasst der Startprozess:
    Ansaugen der Pumpe (10) bei der gewählten Spannung, und entweder Abschalten der Pumpe (10) nach der vorbestimmten Zeit, wenn die Pumpe (10) nicht ansaugt,
    oder Betreiben der Pumpe (10), wenn die Pumpe (10) ansaugt, oder) der Signalprozessor (12) ist so konfiguriert, dass er einen normalen Betriebsmodus-Prozess implementiert, der umfasst:
    Bestimmen, ob die Pumpe (10) eine erste Stromaufnahme erfährt, indem ein erfasster Strom, der von der Pumpe (10) gezogen wird, mit einem jeweiligen vorbestimmten niedrigen Stromwert verglichen wird, der der erfassten ausgewählten Spannung entspricht, und
    Abschalten der Pumpe (10) nach der vorbestimmten Zeit, wenn der gemessene Strom kleiner als der jeweilige erste vorbestimmte Stromwert ist; oder
    der normale Betriebsmodusprozess umfasst:
    Bestimmen, ob die Pumpe (10) eine zweite Stromaufnahme erfährt, indem ein erfasster Strom, der von der Pumpe (10) gezogen wird, mit einem vorbestimmten hohen Stromwert verglichen wird, und
    Abschalten der Pumpe (10) nach der vorbestimmten Zeit, wenn der gemessene Strom größer als der vorbestimmte hohe Stromwert ist.
  6. Ein Pumpen-System (100) nach Anspruch 1, wobei der Signalprozessor (12) konfiguriert ist, um einen normalen Betriebsmodusprozess zu implementieren, umfassend:
    Bestimmen, ob die Pumpe (10) eine erste Stromaufnahme erfährt, indem ein erfasster Strom, der von der Pumpe (10) gezogen wird, mit einem jeweiligen vorbestimmten niedrigen Stromwert, der der ausgewählten Spannung entspricht, verglichen wird, und
    Abschalten der Pumpe (10) nach der vorbestimmten Zeit, wenn der gemessene Strom kleiner als der jeweilige erste vorbestimmte niedrige Stromwert ist; oder
    der normale Betriebsmodusprozess umfasst:
    Bestimmen, ob die Pumpe (10) eine zweite Stromaufnahme erfährt, indem der erfasste Strom, der von der Pumpe (10) gezogen wird, mit einem vorbestimmten hohen Stromwert verglichen wird; und
    Abschalten der Pumpe (10) nach der vorbestimmten Zeit, wenn der erfasste Strom größer als der jeweilige vorbestimmte hohe Stromwert ist.
  7. Pumpen-System (100) nach Anspruch 5, wobei entweder der vorbestimmte zweite Stromwert ein jeweiliger vorbestimmter hoher Stromwert ist, der der erfassten ausgewählten Spannung entspricht, oder der vorbestimmte hohe Stromwert ein einzelner zweiter Stromwert für jede erfasste ausgewählte Spannung ist.
  8. Pumpen-System (100) nach Anspruch 5, wobei der normale Betriebsmodusprozess umfasst:
    Bestimmen, ob die Pumpe (10) eine zweite Stromaufnahme erfährt, indem der erfasste Strom, der von der Pumpe (10) gezogen wird, mit einem vorbestimmten hohen Stromwert verglichen wird; und
    Abschalten der Pumpe (10) nach der vorbestimmten Zeit, wenn der gemessene Strom größer als der vorbestimmte hohe Stromwert ist.
  9. Pumpen-System (100) nach Anspruch 1, wobei der normale Betriebsmodusprozess umfasst:
    Bestimmen, ob die Pumpe (10) eine zweite Stromentnahme erfährt, durch Vergleichen eines gemessenen Stroms, der von der Pumpe (10) gezogen wird, mit einem vorbestimmten hohen Stromwert; und
    Abschalten der Pumpe (10) nach der vorbestimmten Zeit, wenn der gemessene Strom größer als der jeweilige vor bestimmte hohe Stromwert ist.
  10. Pumpen-System (100) nach Anspruch 4, wobei der Drucksensor so konfiguriert ist, dass er einen Fluiddruck erfasst und ein Fluiddrucksignal bereitstellt, das Informationen über den Fluiddruck enthält.
  11. Pumpen-System (100) nach Anspruch 4, wobei der Fluidwertsensor so konfiguriert ist, dass er einen Fluidwert erfasst und ein Fluidwertsignal bereitstellt, das Informationen über den Fluidwert enthält.
  12. Pumpen-System (100) nach Anspruch 1, wobei die Pumpe einen Ein/Aus-Schalter mit einer integrierten Leuchte aufweist.
  13. Pumpen-System (100) nach Anspruch 12, wobei das integrierte Licht so konfiguriert ist, dass es Lichtsteuersignale empfängt und sich entweder einschaltet, wenn die Pumpe (10) läuft, oder blinkt, wenn die Pumpe (10) abschaltet, und der Signalprozessor (12) so konfiguriert ist, dass er die Lichtsteuersignale bereitstellt.
  14. Pumpen-System (100) nach Anspruch 1, wobei das Pumpen-System (100) als integrales Pumpsystem konfiguriert ist, so dass die Pumpe (10) das Netzteil (250) enthält; und die Pumpe (10) ein Gehäuse einschließlich eines Motorgehäuses (110) umfasst; und die Spannungseinstellungen so angepasst sind, dass sie aus dem Gehäuse ragen und sich außerhalb des Gehäuses der Pumpe (10) erstrecken, um vom Benutzer ausgewählt zu werden.
EP14791997.1A 2013-05-01 2014-04-30 Pumpe mit mehrspannungselektronik mit trockenlauf- und überstromschutz Active EP2992212B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361818147P 2013-05-01 2013-05-01
PCT/US2014/036029 WO2014179394A1 (en) 2013-05-01 2014-04-30 Pump using multi voltage electronics with run dry and over current protection

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EP2992212A4 EP2992212A4 (de) 2017-01-11
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CN (1) CN105339661B (de)
AU (1) AU2014259989B2 (de)
CA (1) CA2910409C (de)
ES (1) ES2824075T3 (de)
MX (1) MX351477B (de)
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CN112727740B (zh) * 2019-10-28 2022-08-09 上海海立电器有限公司 直流控制方法和直流控制装置

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CN105339661A (zh) 2016-02-17
EP2992212A4 (de) 2017-01-11
AU2014259989A1 (en) 2015-11-12
CA2910409C (en) 2017-09-26
MX351477B (es) 2017-10-17
WO2014179394A1 (en) 2014-11-06
MX2015015198A (es) 2016-02-09
ES2824075T3 (es) 2021-05-11
CA2910409A1 (en) 2014-11-06
EP2992212A1 (de) 2016-03-09
AU2014259989B2 (en) 2017-06-29
CN105339661B (zh) 2019-02-15

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