CN108303584A - Detection method and water dispenser - Google Patents
Detection method and water dispenser Download PDFInfo
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- CN108303584A CN108303584A CN201810110024.0A CN201810110024A CN108303584A CN 108303584 A CN108303584 A CN 108303584A CN 201810110024 A CN201810110024 A CN 201810110024A CN 108303584 A CN108303584 A CN 108303584A
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- water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
- G01R19/2509—Details concerning sampling, digitizing or waveform capturing
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- 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
- F04B51/00—Testing machines, pumps, or pumping installations
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a kind of detection method and water dispensers, are related to field of water treatment equipment.The detection method includes：Judge the operating current data of water pump whether in default operating current data interval, range of the default operating current data interval characterization water pump in the current data to work with nominal load, when operating current data are not in default operating current data interval, judgement water pump is in operation irregularity state.The space of hold facility needed for this method is small, at low cost, and its reliability is high.
Description
Technical field
The present invention relates to field of water treatment equipment, in particular to detection method and water dispenser.
Background technology
With the continuous improvement that people's health is realized, requirement of the people to water quality is also higher and higher, and purifier is also slow
Slow enters huge numbers of families, becomes one of equipment indispensable in family.
There are one water tank or balanced reservoirs for the interior design of purifier, are extracted out the water in water tank by water pump, when
The water level decreasing of water and when there is water shortage in water tank, purifier will start excessive low water level protection function, ensure the component of purifier
Safety.
Existing purifier is mounted on liquid level sensor on its water tank, in the case that water tank lacks water to water pump and
Purifier carries out excessive low water level protection, avoids leading to equipment damage because of water tank lacks water, for example, passing through the tongue tube installed on water tank
Formula water level switch or condenser type water level switch detect the water level in water tank, to start excessive low water level protection work(when there is water shortage
Can, the former belongs to physically structure, and uncontrollable factor is more, such as：Buoy magnet causes water level start stop switch because mechanical structure is stuck
Failure；Meanwhile dry-reed water level switch is complicated, occupied space is big, and use cost is high, and the latter's is of high cost, to water tank
Wall thickness and flatness requirement are high, install fixed trouble, and do not used generally in industry, reliability is still to be tested, in addition wraps
It includes the water level switch including other kinds of water level switch and has that occupied space is big, cumbersome problem is installed.
It occupies little space in view of this, designing one kind, at low cost, the high detection method of reliability and water supply installation seem
It is particularly important.
Invention content
The purpose of the present invention is to provide a kind of detection method, the working condition for detecting water pump, the detection method needs
The equipment occupation space wanted is small, at low cost, and reliability is high.
Another object of the present invention is to provide a kind of water dispensers, and the working condition of water pump, the water are detected using detection method
The equipment occupation space that machine needs is small, at low cost, and reliability is high.
The present invention provides a kind of technical solution：
In a first aspect, an embodiment of the present invention provides a kind of detection method, it is applied to water pump, the detection method includes：
The operating current data of the water pump are judged whether in default operating current data interval, the default operating current data field
Between characterize the water pump in the case that the current data to work with nominal load range；When the operating current data are not in institute
It states in default operating current data interval, judges that the water pump is in operation irregularity state.
With reference to first aspect, in the first realization method of first aspect, the operating current data include operation electricity
Flow valuve, the running current value characterize the current value of the water pump at runtime, and the default operating current data interval includes
Default running current section, the default running current section characterizes the water pump in the electric current run with nominal load
The range of value, the detection method can be：Judge the running current value whether in the default running current section；When
The running current value not in the default running current section, judge the water pump be in operation irregularity state with.
With reference to first aspect and its above-mentioned realization method, in second of realization method of first aspect, the judgement institute
Stating the step of water pump is in operation irregularity state further includes：Judge whether the running current value is less than the default running current
Minimum in section；When the running current value is less than the minimum in the default running current section, the water is judged
Pump is in water shortage working condition.
With reference to first aspect and its above-mentioned realization method, in the third realization method of first aspect, the work electricity
Flow data includes starting current value, the current value when starting current value is the starting mode of pump, the default operating current
Data interval includes default starting current section, and the default starting current section characterizes the water pump in band nominal load situation
The range of current value when lower startup, the detection method can be：Judge the starting current value of the water pump whether default
In starting current section；When the starting current value is not in the default starting current section, judge that the water pump is in work
Make abnormality with.
With reference to first aspect and its above-mentioned realization method, in the 4th kind of realization method of first aspect, the judgement institute
Stating the step of water pump is in operation irregularity state further includes：Judge whether the starting current value is less than the default starting current
Minimum in section；When the starting current value is less than the minimum in the default starting current section, the water is judged
Pump is in water shortage working condition.
With reference to first aspect and its above-mentioned realization method, in the 5th kind of realization method of first aspect, the work electricity
Flow data includes shutting down current duration, and the current duration of shutting down is that the water pump generates continuing for electric current when shutting down
Time span, the default operating current data interval include default downtime section, the default downtime interval table
The range of shutdown current duration of the water pump when being shut down with nominal load is levied, the detection method can be with
For：Judge the shutdown current duration of the water pump whether in default downtime section；When the shutdown electric current continues
Time not in the default downtime section, judge the water pump be in operation irregularity state with.
With reference to first aspect and its above-mentioned realization method, in the 6th kind of realization method of first aspect, the judgement institute
Stating the step of water pump is in operation irregularity state further includes：Judge whether the shutdown current duration stops higher than described preset
Peak in machine time interval；When the shutdown current duration is higher than the highest in the default downtime section
Value, judges that the water pump is in water shortage working condition.
Second aspect, an embodiment of the present invention provides a kind of water dispenser, the water dispenser includes controller, current sensor, opens
Guard's valve and water pump, the controller are electrically connected with the current sensor and the start stop switch respectively, the current sense
Device is installed between the start stop switch and the water pump；The start stop switch is for being closed or disconnecting the water pump and driving
Electrical connection between power supply, the driving power are described for detecting for driving the pump working, the current sensor
Operating current data when pump working, and the operating current data are transmitted to the controller, the controller judges institute
Operating current data are stated whether not in default operating current data interval, described in the default operating current data interval characterization
Water pump in the case that the current data to work with nominal load range, when the operating current data are not in default operating current
In data interval, the controller judges that the water pump is in operation irregularity state, and controls described in the start stop switch disconnection
Being electrically connected between water pump and the driving power.
In conjunction with second aspect, in the first realization method of first aspect, the start stop switch is triode or MOS
Pipe.
In conjunction with second aspect and its above-mentioned realization method, in second of realization method of second aspect, the water dispenser is also
Including prompting alarm, the prompting alarm is electrically connected with the controller, when the running current value is not in default operation
In electric current section, the controller, which is additionally operable to control the prompting alarm, sends out prompt or warning message.
Compared with prior art, the advantageous effect of detection method and water dispenser provided by the invention is：
Judge the operating current data of water pump whether in default operating current data interval, whether water pump is judged with this
In operation irregularity state, the space of required hold facility is small, at low cost, and its reliability is high.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described.It should be appreciated that the following drawings illustrates only certain embodiments of the present invention, therefore it is not construed as pair
The restriction of range.It for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the composition schematic block diagram for the water dispenser that first embodiment of the invention provides；
Fig. 2 is the schematic process flow diagram for the detection method that second embodiment of the invention provides；
Fig. 3 is that the step S103 for the detection method that second embodiment of the invention provides judges according to running current value at water pump
The schematic process flow diagram of sub-step when operation irregularity state；
Fig. 4 is that the step S103 for the detection method that second embodiment of the invention provides judges according to starting current value at water pump
The schematic process flow diagram of sub-step when operation irregularity state；
Fig. 5 is that the step S103 for the detection method that second embodiment of the invention provides judges according to current duration is shut down
The schematic process flow diagram of sub-step when water pump is in operation irregularity state.
Icon：100- water dispensers；110- driving powers；120- water pumps；130- start stop switches；140- controllers；150- is prompted
Alarm；160- current sensors；170- memories.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it is to be understood that, the instructions such as term "upper", "lower", "inner", "outside", "left", "right"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship or the orientation or positional relationship that usually understands of those skilled in the art, be merely for convenience of retouching
It states the present invention and simplifies description, do not indicate or imply the indicated equipment or element must have a particular orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, " setting ", " even
Connect " etc. terms shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, can also be electrical connection；Can be directly connected to, can also be indirectly connected with by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Below in conjunction with the accompanying drawings, the specific implementation mode of the present invention is described in detail.In the absence of conflict, following
Embodiment and embodiment in feature can be combined with each other.
Existing purifier is mounted on liquid level sensor on its water tank, in the case that water tank lacks water to water pump and
Purifier carries out excessive low water level protection, but its dry-reed water level switch for using or condenser type water level switch exist occupy it is empty
Between it is big, cumbersome problem is installed.
A kind of detection method of offer of the embodiment of the present invention and water dispenser, the water dispenser detect the water pump of water dispenser using detection method
Water inlet end whether water shortage, the detection method, by detect pump working when electric current come judge water dispenser whether water shortage, detection at
This is low, occupies little space, reliability height.First embodiment：
Fig. 1 is please referred to, Fig. 1 is the composition schematic block diagram for the water dispenser 100 that first embodiment of the invention provides.
Water dispenser 100 includes controller 140, current sensor 160, start stop switch 130 and water pump 120, and controller 140 is distinguished
It is electrically connected with current sensor 160 and start stop switch 130, start stop switch 130 is for being closed or disconnecting water pump 120 and driving electricity
Electrical connection between source 110, for above-mentioned driving power 110 for driving water pump 120 to work, current sensor 160 is installed on water pump
Conducting wire between 120 and start stop switch 130, for starting, running and disconnecting water pump 120 and driving power 110 in water pump 120
Between electrical connection when detection water pump 120 input and output obtain electric current and related data.
Current sensor 160 is used to detect operating current data when water pump 120 works, and by operating current data transmission
To controller 140, controller 140 judges the operating current data whether in predetermined current data interval, the pre-set current value
The current data range that data characterization water pump 120 works with nominal load, when operating current data are in default electricity
It flows in section, controller 140 judges that water pump 120 is in normal operating conditions, when operating current data are not in predetermined current section
Interior, controller 140 judges that water pump 120 be in operation irregularity state, controller 140 control start stop switch 130 disconnect water pump 120 and
Electrical connection between driving power 110 starts the abnormal protection to water pump 120, to improve the stability of water dispenser 100.
Wherein, operating current data include starting current value, and starting current value is the current value of water pump 120 on startup,
The current value can be the current value average value of water pump 120 on startup, or the current value of water pump 120 on startup
Maximum value, predetermined current data interval can include default starting current section by factory settings, predetermined current data interval, in advance
If starting current section characterizes the range of current value of the water pump 120 when starting with nominal load, current sensor 160
Starting current value when water pump 120 starts can be detected, and starting current value is sent to controller 140, controller 140 judges
Whether the starting current value is in default starting current section, and the default starting current section characterization water pump 120 is with specified negative
The range of the current value started in the case of load, it should be noted that refer to when startup start stop switch 130 be closed water pump 120 with
A period of time after electrical connection between driving power 110, this section of time span can be by factory settings.When starting current value does not exist
In default starting current section, controller 140 judges that water pump 120 is in operation irregularity state, and controller 140 controls start stop switch
Being electrically connected between 130 disconnection water pumps 120 and driving power 110, makes water pump 120 be stopped, to start to the different of water pump 120
Often protection, to improve the stability of water dispenser 100.
Wherein, it should be noted that the operation irregularity state of water pump 120 includes water shortage working condition and overload work shape
State, when water pump 120 is in water shortage working condition, water shortage situation, the load torque of water pump 120 will occur in 120 water inlet end of water pump
Torque at rated load is will be less than, the starting current of water pump 120 will also be reduced because of the reduction of load torque, and less than default
The minimum in starting current section, controller 140 judge the starting current value generated by the detection of current sensor 160 less than default
When the minimum in starting current section, controller 140 will judge that water pump 120 is in water shortage working condition.In addition, working as water pump 120
When in overload work state, water pump 120 may lead to water pump because of 120 parts damages of water pump, pipeline blockage or other reasons
120 rotary resistances are excessive, and the electric current that water pump 120 works in overload work state will be sharply increased, and working resistance will increase, and
There is water pump 120 seriously to overheat, or even the case where damage of water pump 120 occur, the starting current of water pump 120 will also increase because of its load
Increase greatly, and higher than the peak in default starting current section, controller 140 judges to be obtained by the detection of current sensor 160
Starting current value when being higher than the peak in default starting current section, controller 140 will judge that water pump 120 is in overload work
State.
In addition, operating current data further include running current value, running current value characterizes the electric current of water pump 120 at runtime
Value, predetermined current data interval further include default running current section, preset running current section and characterize water pump 120 with specified
The range of the current value run under loading condition, current sensor 160 are additionally operable to running current when detection water pump 120 is run
Value, and running current value is sent to controller 140, whether controller 140 judges the running current value in default running current
In section, the range for the current value which runs with nominal load, when
For running current value not in default running current section, controller 140 judges that water pump 120 is in operation irregularity state, controller
140 control start stop switches 130 disconnect being electrically connected between water pump 120 and driving power 110, so that water pump 120 is stopped, with fortune
The abnormal protection gone to water pump 120, to improve the stability of water dispenser 100.
Wherein, it should be noted that when water pump 120 is in water shortage working condition, water shortage will occur in 120 water inlet end of water pump
The load torque of situation, water pump 120 will be less than torque at rated load, and the running current of water pump 120 also will be because of load torque
It reduces and reduces, and less than the minimum in default running current section, controller 140 judges to be detected by current sensor 160
When the running current value of generation is less than the minimum in default running current section, controller 140 will judge that water pump 120 is in water shortage
Working condition.In addition, when water pump 120 is in overload work state, water pump 120 may be because of 120 parts damages of water pump, and pipeline is stifled
Plug or other reasons cause 120 rotary resistance of water pump excessive, and the electric current that water pump 120 works in overload work state will substantially
It increases, working resistance will increase, and water pump 120 occur and seriously overheat, or even the case where damage of water pump 120 occur, water pump 120
Running current will also increase due to its load increases, and higher than the peak in default running current section, controller 140 judge by
When the running current value that the detection of current sensor 160 generates is higher than the peak in default running current section, controller 140 will be sentenced
Determine water pump 120 and is in overload work state.
In addition, operating current data further include shutting down current duration, shuts down current duration and shut down for water pump 120
When generate the time duration of electric current, predetermined current data interval further includes default downtime section, downtime section
Characterize the range of shutdown current duration of the water pump 120 when being shut down with nominal load.Controller 140 responds user
After operation or program instruction control start stop switch 130 disconnect being electrically connected between water pump 120 and driving power 110, it will calculate
It is examined from the time point being electrically connected between the disconnection water pump 120 of start stop switch 130 and driving power 110 to by current sensor 160
The current value when water pump 120 measured is shut down is reduced to time span when zero, which is to shut down current duration,
Controller 140 judges the shutdown current value whether in default downtime section, which characterizes water pump
The range of 120 shutdown current duration when being shut down with nominal load, continues not when shutting down electric current default
In downtime section, controller 140 judges that water pump 120 is in operation irregularity state, and controller 140 controls start stop switch 130
Being electrically connected between water pump 120 and driving power 110 is disconnected, so that water pump 120 is stopped, to carry out abnormal guarantor to water pump 120
Shield, to improve the stability of water dispenser 100.
It is understood that in other embodiments, operating current data can also be detected by other equipment, for example,
Current data that water dispenser 100 is sampled according to the current sampling circuit for the power inlet for providing power supply for water dispenser 100 is sentenced
Whether water cut-off pump 120 is in normal operating conditions.
Wherein, it should be noted that when water pump 120 is in water shortage working condition, water shortage will occur in 120 water inlet end of water pump
The load torque of situation, water pump 120 will be less than torque at rated load, and the shutdown current duration of water pump 120 also will be because of negative
The reduction of set torque and increase, and higher than the peak in default downtime section, controller 140 judges that shutting down electric current continues
When time is higher than the peak in default downtime section, controller 140 will judge that water pump 120 is in water shortage working condition.Separately
Outside, when water pump 120 is in overload work state, water pump 120 may because of 120 parts damages of water pump, pipeline blockage or other
Reason causes 120 rotary resistance of water pump excessive, and the electric current that water pump 120 works in overload work state will be sharply increased, work
Resistance will increase, and water pump 120 occur and seriously overheat, or even the case where damage of water pump 120, the shutdown electric current of water pump 120 occur
Duration will also be reduced due to its load increases, and less than the minimum in default downtime section, and the judgement of controller 140 stops
When machine current duration is less than the minimum in default downtime section, controller 140 will judge that water pump 120 is in overload work
Make state.
It is understood that in other embodiments, operating current data further include starting the time, start time representation water
For pump 120 by static startup to time span used in rated speed, predetermined current data interval further includes the default startup time
Section is preset startup time interval characterization water pump 120 and is being started to needed for rated speed by static with nominal load
The range of time span, water dispenser 100 can also include speed probe, and speed probe is installed on water pump 120 and and controller
140 electrical connections, speed probe are used to detect the rotating speed of water pump 120, and rotating speed when starting is sent to controller 140, control
The required time when rotating speed that device 140 processed generates the water pump 120 rises to rated speed by zero, which is to start time, controller
140 judge to start whether the time starts default in time interval, which characterizes water pump 120 with specified
The range of the startup time started in the case of load, upon start up between do not start in time interval default, controller 140 is sentenced
Determine water pump 120 and be in operation irregularity state, controller 140 control start stop switch 130 disconnect water pump 120 and driving power 110 it
Between electrical connection, so that water pump 120 is stopped, to start to the abnormal protection of water pump 120, to improve the stability of water dispenser 100.
Wherein, it should be noted that when water pump 120 is in water shortage working condition, water shortage will occur in 120 water inlet end of water pump
The load torque of situation, water pump 120 will be less than torque at rated load, and the startup time of water pump 120 also will be because of load torque
It reduces and reduces, and less than the default minimum for starting time interval, controller 140 judges that start the time starts less than default
When the minimum of time interval, controller 140 will judge that water pump 120 is in water shortage working condition.In addition, when water pump 120 is in
When overload work state, water pump 120 may lead to 120 turns of water pump because of 120 parts damages of water pump, pipeline blockage or other reasons
Dynamic resistance is excessive, and the electric current that water pump 120 works in overload work state will be sharply increased, and working resistance will increase, and occur
Water pump 120 seriously overheats, or even the case where damage of water pump 120 occurs, and the startup time of water pump 120 also will be due to its load increases
Increase, and higher than the default peak for starting time interval, controller 140 judges that start the time starts time interval higher than default
Peak when, controller 140 will judge water pump 120 be in overload work state.
It is understood that the digital-to-analogue conversion module that above-mentioned current sensor 160 or controller 140 carry, with
Equipment volume is saved, circuit level is improved.
Preferably, water dispenser 100 further includes prompting alarm 150, and prompting alarm 150 is electrically connected with controller 140,
When controller 140 judges that water pump 120 is in operation irregularity state, controller 140 control prompting alarm 150 send out prompt or
Person's warning message is to be in water shortage working condition or place to prompt user's working condition that either maintenance personnel's water pump 120 is
In overload work state, convenient for checking and handling in time, the stability that water pump 120 is run is improved.
Preferably, start stop switch 130 is that either metal-oxide-semiconductor (field-effect tube) triode or metal-oxide-semiconductor can be with for triode
It is directly mounted at circuit board, it is small, it occupies little space, it is at low cost, requirement of the water dispenser 100 to installation environment can be reduced.
In addition, water dispenser 100 further includes memory 170, memory 170 is electrically connected with controller 140, and memory 170 is used for
Store above-mentioned default running current section, default starting current section, default startup time interval, default downtime section
And the operating state data etc. of water pump 120.
It is understood that in other embodiments, which can also include discharge pressure table, discharge pressure table
It is installed on the water outlet of water pump 120, discharge pressure table is electrically connected with controller 140, when water shortage occurs in the water inlet end of water pump 120
When, the water outlet of water pump 120 will enter air, and the pressure detected by discharge pressure table will be greatly reduced, and controller 140 can lead to
Cross the pressure value that discharge pressure table is detected judge water pump 120 water inlet end whether water shortage, and then in time to water pump 120 carry out
Excessive low water level protection acts.
It is understood that the object that electric current is detected as detection method is used in the present embodiment, and in other implementations
In example, the detection object of detection method is can also be used as with the relevant other values of current value, for example, detection and water pump can be passed through
The voltage value of the resistance of 120 electrical connections characterizes the curent change situation of water pump 120.
The operation principle of water dispenser 100 that first embodiment provides is：
Water dispenser 100 detects the starting current value, running current value and shutdown electricity of water pump 120 by current sensor 160
The duration is flowed, and the correspondence whether above-mentioned numerical value belongs in default operating current data interval is judged by controller 140 respectively
Default starting current section, in default running current section and default downtime section, and water pump 120 is judged with this
Bringing onto load situation, so judge water pump 120 whether water shortage.
In summary：
Water dispenser 100 provided in an embodiment of the present invention, the water dispenser 100 judge water by detecting the operating current of water pump 120
Pump 120 bringing onto load situation, and then judge water pump 120 whether water shortage, occupy little space, it is at low cost, and reliability height.
Second embodiment：
Fig. 2 is please referred to, Fig. 2 is the schematic process flow diagram for the detection method that second embodiment of the invention provides.
The detection method specifically includes：
Whether step S101 judges operating current data in default operating current data interval.Step S101 is by
Controller 140 in one embodiment executes.
When operating current data are in predetermined current data interval, step S102 is executed.
Step S102, judgement water pump 120 are in normal operating conditions.Step S102 is by the controller in first embodiment
140 execute.
When operating current data are not in predetermined current data interval, step S103 is executed.
Step S103, judgement water pump 120 are in operation irregularity state.Step S103 is by the controller in first embodiment
140 execute.
Operating current data include running current value, starting current value and shut down current duration, preset operating current
Data interval includes default running current section, default starting current section and default downtime section, the embodiment of the present invention
In the step S101 to step S103 of the detection method of offer, operating current data and default operating current data interval can be distinguished
Replace with running current value and default running current section, starting current value and default starting current section, shut down electric current continue
Time and default downtime section, details are not described herein again.
It is understood that in other embodiments, water dispenser 100 can judge water using multiple operating current data simultaneously
The working condition of pump 120, for example, belonging to default running current section in running current value and starting current value belongs to default and opens
When streaming current section, controller 140 judges that the working condition of water pump 120 is normal operating conditions, naturally it is also possible in conjunction with other
Data.
Further, when according to running current value, not in default running current section, it is different that judgement water pump 120 is in work
When normal state, what judgement water pump 120 was in the step S103 of operation irregularity state can also include following sub-step, please refer to figure
The step S103 of 3, Fig. 3 detection methods provided for second embodiment of the invention judges that water pump 120 is according to running current value
The schematic process flow diagram of sub-step when operation irregularity state.
Whether sub-step S1031 judges running current value less than the minimum in default running current section；The step
S1031 is executed by the controller 140 in first embodiment.
When running current value is less than the minimum in default running current section, sub-step S1032 judges the water pump
120 are in water shortage working condition.Step S1032 is executed by the controller 140 in first embodiment.
When running current value is higher than the peak in default running current section, sub-step S1033 judges the water pump
120 are in overload work state.Step S1033 is executed by the controller 140 in first embodiment.
Further, when according to starting current value, not in default starting current section, it is different that judgement water pump 120 is in work
When normal state, what judgement water pump 120 was in the step S103 of operation irregularity state can also include following sub-step, please refer to figure
The step S103 of 4, Fig. 4 detection methods provided for second embodiment of the invention judges that water pump 120 is according to starting current value
The schematic process flow diagram of sub-step when operation irregularity state.
Whether sub-step S1034 judges starting current value less than the minimum in default starting current section；The step
S1034 is executed by the controller 140 in first embodiment.
When starting current value is less than the minimum in default starting current section, sub-step S1035 judges the water pump
120 are in water shortage working condition.Step S1035 is executed by the controller 140 in first embodiment.
When starting current value is higher than the peak in default starting current section, sub-step S1036 judges the water pump
120 are in overload work state.Step S1036 is executed by the controller 140 in first embodiment.
Further, when according to current duration is shut down not in default downtime section, judgement water pump 120 is in
When operation irregularity state, what judgement water pump 120 was in the step S103 of operation irregularity state can also include following sub-step, ask
With reference to Fig. 5, Fig. 5 is that the step S103 for the detection method that second embodiment of the invention provides judges according to current duration is shut down
The schematic process flow diagram of sub-step when water pump 120 is in operation irregularity state.
Whether sub-step S1037 judges to shut down current duration less than the minimum in default downtime section；It should
Step S1037 is executed by the controller 140 in first embodiment.
When the minimum shut down current duration and be less than in default downtime section, sub-step S1038, described in judgement
Water pump 120 is in overload work state.Step S1038 is executed by the controller 140 in first embodiment.
When the peak shut down current duration and be higher than in default downtime section, sub-step S1039, described in judgement
Water pump 120 is in water shortage working condition.Step S1039 is executed by the controller 140 in first embodiment.
The operation principle of detection method that second embodiment provides is：
Judge whether the starting current value, running current value and shutdown current duration of water pump 120 belong to default work
Current data, such as：Default starting current section, default running current section and it is default shut down electric current section, and judged with this
The working condition of water pump 120, and then judge whether water pump 120 is in exsiccosis or overload.
In summary：
Detection method provided in an embodiment of the present invention, the working condition for detecting water pump 120, needed for the detection method
The space of hold facility is small, at low cost, and its reliability is high.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, in the absence of conflict, the feature in the above embodiments can be combined with each other, and the present invention can have various
Change and variation.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all include
Within protection scope of the present invention.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of detection method, it is applied to water pump, which is characterized in that the detection method includes：
The operating current data of the water pump are judged whether in default operating current data interval, the default operating current number
According to section characterize the water pump in the case that the current data to work with nominal load range；
When the operating current data are not in the default operating current data interval, judge that the water pump is in operation irregularity
State.
2. detection method according to claim 1, which is characterized in that the operating current data include running current value,
The running current value characterizes the current value of the water pump at runtime, and the default operating current data interval includes default fortune
Row electric current section, the default running current section characterize the water pump in the case that the current value run with nominal load model
It encloses, the detection method can be：
Judge the running current value whether in the default running current section；
When the running current value is not in the default running current section, judge that the water pump is in operation irregularity state.
3. detection method according to claim 2, which is characterized in that the judgement water pump is in operation irregularity state
The step of further include：
Judge the running current value whether less than the minimum in the default running current section；
When the running current value is less than the minimum in the default running current section, judge that the water pump is in water shortage work
Make state.
4. detection method according to claim 1, which is characterized in that the operating current data include starting current value,
Current value when the starting current value is the starting mode of pump, the default operating current data interval include default startup electricity
Section is flowed, the default starting current section characterizes the model of current value of the water pump when starting with nominal load
It encloses, the detection method can be：
Judge the starting current value of the water pump whether in default starting current section；
When the starting current value is not in the default starting current section, judge that the water pump is in operation irregularity state.
5. detection method according to claim 4, which is characterized in that the judgement water pump is in operation irregularity state
The step of further include：
Judge the starting current value whether less than the minimum in the default starting current section；
When the starting current value is less than the minimum in the default starting current section, judge that the water pump is in water shortage work
Make state.
6. detection method according to claim 1, which is characterized in that the operating current data include shutting down electric current to continue
Time, the current duration of shutting down is the time duration that electric current is generated when the water pump is shut down, the default work
Current data section includes default downtime section, and the default downtime section characterizes the water pump in band nominal load
In the case of shutdown current duration when shutting down range, the detection method can be：
Judge the shutdown current duration of the water pump whether in default downtime section；
When the shutdown current duration is not in the default downtime section, judge that the water pump is in operation irregularity
State.
7. detection method according to claim 6, which is characterized in that the judgement water pump is in operation irregularity state
The step of further include：
Judge the shutdown current duration whether higher than the peak in the default downtime section；
When the peak shut down current duration and be higher than in the default downtime section, judge that the water pump is in
Water shortage working condition.
8. a kind of water dispenser, which is characterized in that the water dispenser implements the detection method as described in any one of claim 1-7,
The water dispenser includes controller, current sensor, start stop switch and water pump, the controller respectively with the current sensor and
The start stop switch electrical connection, the current sensor are installed between the start stop switch and the water pump；
The start stop switch is used for being closed or disconnecting being electrically connected between the water pump and driving power, the driving power
In driving the pump working, the current sensor is used to detect the operating current data when pump working, and transmits
For the operating current data to the controller, whether the controller judges the operating current data not in default work electricity
In flow data section, the default operating current data interval characterizes the water pump in the electric current to work with nominal load
The range of data, when the operating current data are not in default operating current data interval, the controller judges the water
Pump is in operation irregularity state, and controls the start stop switch and disconnect being electrically connected between the water pump and the driving power.
9. water dispenser according to claim 8, which is characterized in that the start stop switch is triode or metal-oxide-semiconductor.
10. water dispenser according to claim 8, which is characterized in that the water dispenser further includes prompting alarm, the prompt report
Alert device is electrically connected with the controller, and when the controller judges that the water pump is in operation irregularity state, the controller is also
Prompt or warning message are sent out for controlling the prompting alarm.
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| CN110985654A (en) * | 2019-12-27 | 2020-04-10 | 盛瑞传动股份有限公司 | Electric pump load control method for automatic gearbox |
| CN111157816A (en) * | 2019-12-31 | 2020-05-15 | 宁波奥克斯电气股份有限公司 | Failure detection method and device for water inlet valve and steam box |
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