CN115429182A - Cleaning method of cleaning machine without water flow sensor and cleaning machine - Google Patents
Cleaning method of cleaning machine without water flow sensor and cleaning machine Download PDFInfo
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- CN115429182A CN115429182A CN202110621285.0A CN202110621285A CN115429182A CN 115429182 A CN115429182 A CN 115429182A CN 202110621285 A CN202110621285 A CN 202110621285A CN 115429182 A CN115429182 A CN 115429182A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0049—Detection or prevention of malfunction, including accident prevention
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0047—Energy or water consumption, e.g. by saving energy or water
Abstract
The invention relates to a cleaning method of a cleaning machine without a water flow sensor, wherein the cleaning machine is started to work, a starting motor is controlled, and a drain valve in the cleaning machine is controlled to be opened to drain water; after the drainage is finished, controlling to close the drainage valve, then controlling to open the water inlet valve, and recording the time point Ts of opening the water inlet valve; acquiring the motor power P when the motor works in real time; after the power of the motor is stabilized at the stable power Pw, recording a time point Tw when the motor just reaches the stable power Pw; calculating the water flow speed V0 of the inlet water of the cleaning machine according to the motor power data acquired from the time point Ts to the time point Tw in the time interval; and controlling the water inlet of the cleaning machine to reach the preset water inlet amount of the current cleaning work according to the water flow speed V0, and then controlling to close the water inlet valve and control to perform the cleaning work. The invention relates to a cleaning machine applying the method. The cleaning machine and the cleaning method thereof can ensure that the cleaning machine can normally feed water on the basis of no flow data, and have low cost and low maintenance rate.
Description
Technical Field
The invention relates to a cleaning method of a cleaning machine of a waterless flow sensor, and also relates to a cleaning machine applying the method.
Background
The washing machine is applied to a kitchen for washing dishes, and has a requirement for the amount of washing water when the washing machine performs a washing operation, so that the amount of inflow water needs to be detected during the operation of the washing machine. The prior art washing machine generally performs the water inflow detection and calculation by using a water flow sensor, and then performs the washing operation. For example, in the chinese utility model patent "a full intelligent ultrasonic dishwasher" with an authorization publication number of CN203234707U (application number of 201320091440.3), the dishwasher disclosed therein uses an inflow sensor to detect the inflow to obtain the inflow. However, the water flow sensor is relatively expensive, which makes the washer relatively expensive. And when the water flow sensor breaks down, the cleaning machine can not carry out normal cleaning work. In addition, the use of cooperation water flow sensor can set up turbine assembly usually, and the easy card of turbine assembly in the course of the work is dead, and then think by mistake that anhydrous has increased the maintenance rate of cleaning machine.
In addition, the cleaning machine can detect the water level information in the cleaning machine in the use process, the condition of water shortage or overflow is avoided, for example, the Chinese utility model patent with the publication number of CN213189413U (application number of 202021882127.8) discloses overflow detecting structure and dish-washing machine with the same, the dish-washing machine disclosed therein utilizes the water flow sensor to realize the detection of the water level, and meanwhile, in order to avoid the overflow detection under the condition that the water flow sensor fails, the overflow detecting electrode is arranged on the bottom shell, but the condition that hardware fails still exists.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a cleaning machine without a water flow sensor, which can effectively obtain the water flow speed without using a water flow sensor, thereby satisfying the cleaning work.
The second technical problem to be solved by the present invention is to provide a cleaning machine applying the above cleaning method in view of the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: a cleaning method of a cleaning machine of a waterless flow sensor is characterized by comprising the following steps: the method comprises the following steps:
starting the cleaning machine, controlling a starting motor, and controlling to open a drain valve in the cleaning machine to drain water;
after the drainage is finished, controlling to close the drainage valve, then controlling to open the water inlet valve, and recording the time point Ts of opening the water inlet valve;
acquiring the motor power P when the motor works in real time; after the power of the motor is stabilized at the stable power Pw, recording a time point Tw when the motor just reaches the stable power Pw;
calculating the water flow speed V0 of the inlet water of the cleaning machine according to the motor power data acquired from the time point Ts to the time point Tw in the time interval;
and controlling the cleaning machine to feed water to the preset water inlet amount of the current cleaning work according to the water flow speed V0, and then controlling to close the water inlet valve and control to perform the cleaning work.
Conveniently detecting the drainage fault, and detecting and acquiring a water flow speed prestored value V00 according to a method for acquiring V0 before the cleaning machine leaves a factory;
in the use process of the cleaning machine, if drainage faults occur, the drainage valve is controlled to be closed, water inlet is controlled according to the water flow speed pre-stored value V00, and then cleaning work is carried out.
In order to ensure that the cleaning machine can normally carry out cleaning work, under the condition of water discharge failure, the water inflow is controlled to reach the set water inflow of the cleaning work according to the water flow speed prestored value V00.
Preferably, the method for judging the end of drainage comprises: when drainage work is carried out, the power P of the motor is obtained in real time, and meanwhile, the drainage time Tp is timed;
judging whether P and Tp meet the following conditions: p is less than or equal To Po, and Tp is less than or equal To, wherein Po is a preset minimum power threshold value for the motor To perform drainage work; to is a preset time threshold value for the motor To perform drainage work; if yes, judging that the drainage is finished, and controlling to close the drainage valve;
if case A occurs: if the drainage time exceeds To and P is still greater than Po, restarting the motor To drain water; if the continuous occurrence frequency of the condition A reaches the set frequency B, and the B is more than or equal to 2, judging that the drainage fault occurs, and alarming the drainage fault.
In order to avoid the overflow condition, the overflow detection is realized on the basis of no corresponding detection device, and the overflow fault detection of the cleaning machine is carried out before the drainage work is carried out;
and (3) acquiring the power P of the motor in real time before the motor is started and the drain valve is not started, and judging that an overflow condition possibly occurs if the power P is not less than Py and the set overflow fault power threshold Py, so as to alarm the overflow fault.
In order to judge the abnormal condition in the water inlet process and alarm the abnormal condition in time, the condition that the water inlet flow is too small is judged when water enters the cleaning machine in the using process;
after the water inlet valve is opened, calculating the real-time water flow speed V before the motor power P reaches the stable power Pw, restarting the water inlet valve if the difference value of V smaller than the water flow speed prestored value V00 is larger than a preset difference threshold value delta V, judging the condition that the water inlet flow is too small if the difference value of V smaller than the water flow speed prestored value V00 obtained by continuous C times of calculation is still larger than the preset difference threshold value delta V, and alarming that the water inlet flow is too small; wherein C represents the restarting frequency of the water inlet valve, and C is more than or equal to 1.
In order to realize the water leakage detection of the cleaning machine in the cleaning process, the cleaning machine acquires the power data of the motor in real time during the cleaning process, and if the power data of the motor continuously decreases and the decrease amount in unit time exceeds a set decrease threshold, the condition of water leakage is judged, and the water leakage alarm is carried out.
In order to ensure the safe cleaning work when the performance of the motor is reduced, in the water inlet process, if the stable power Pw is smaller than the minimum value Px of a preset stable power interval, the cleaning machine is controlled to restart, and when the number of times of restarting the cleaning machine reaches the set number of times D of restarting, the cleaning machine is controlled to work according to the last water inlet flow rate when the performance of the motor is normal;
meanwhile, when the cleaning machine performs cleaning work, comparing the motor power P acquired in real time with a set water power threshold Pz; if P is larger than or equal to Pz, normally starting a heating device in the cleaning machine to perform cleaning work under the condition that heating is needed in the current cleaning process; if P < Pz, the heating device in the cleaning machine is controlled to keep a closed state to perform the cleaning operation.
Preferably, if the cleaning machine continuously performs cleaning operation N times under the condition that P is less than Pz and the heating device keeps the closing state, judging that the motor has an abnormal condition, and performing motor abnormity alarm, wherein N is a positive integer which is more than or equal to 2, and N represents the abnormity judgment times of the motor.
In order to realize overflow detection under the condition of motor abnormality, under the condition that the motor is judged to be abnormal and the cleaning machine is not in operation, the drying motor in the cleaning machine is controlled to be started according to a set time interval, the rotating speed R of the drying motor is detected and obtained, the R is compared with a prestored minimum normal rotating speed threshold value R0 of the drying motor, and if the R is less than the R0, overflow early warning is controlled.
In order to realize overflow early warning when the cleaning machine is not in operation, the motor is controlled to be started according to a set time interval when the cleaning machine is not in operation, the power P of the motor is detected and obtained, the power P is compared with a set water power threshold Pz, and if the power P is more than or equal to the Pz, the overflow early warning is carried out.
In order to avoid the situation that excessive water is left in the cleaning machine in the sudden stop state of the cleaning machine to cause overflow, the real-time water flow speed V is calculated in the water inlet process of the cleaning machine, if the stop situation occurs, the water inlet amount in the cleaning machine is calculated according to V, the corresponding water discharging time is calculated according to the water inlet amount, and then the water discharging valve is controlled to be opened according to the water discharging time to perform water discharging work.
The technical scheme adopted by the invention for solving the second technical problem is as follows: a cleaning machine applying the method is characterized in that: the drying machine comprises a machine body with a water inlet and a water outlet, a motor, a drying motor, a heating device and a control circuit board which are arranged in the machine body, a water inlet valve arranged on the water inlet, and a water discharge valve arranged on the water outlet, wherein the motor, the drying motor, the heating device, the water inlet valve and the water discharge valve are all in electric signal connection with the control circuit board.
Compared with the prior art, the invention has the advantages that: the cleaning method of the cleaning machine without the water flow sensor realizes the detection of the water flow speed on the basis of not arranging the water flow sensor, thereby ensuring the normal operation of the water inlet work of the cleaning machine. And the cleaning machine applying the method has low cost and low maintenance rate.
Drawings
Fig. 1 is a flow chart of acquiring the water flow speed pre-stored value V00 during the testing stage of the cleaning machine according to the embodiment of the present invention.
Fig. 2 is a flow chart of a cleaning method of a cleaning machine without a water flow sensor in the embodiment of the invention.
FIG. 3 is a flow chart illustrating the performance of the motor in the washing machine according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
The cleaning method of the cleaning machine without the water flow sensor in the embodiment can be applied to the cleaning machine without the water flow sensor. The cleaning machine comprises a machine body with a water inlet and a water outlet, a motor, a drying motor, a heating device and a control circuit board which are arranged in the machine body, a water inlet valve arranged on the water inlet, and a water discharge valve arranged on the water outlet, wherein the motor, the drying motor, the heating device, the water inlet valve and the water discharge valve are all in electric signal connection with the control circuit board. Wherein heating device can adopt the heating plate that sets up in bottom of the body, and some cleaning procedure of cleaning machine need control to open heating device, heat the water in the body, and then carry out cleaning.
The cleaning method of the cleaning machine without the water flow sensor generally comprises the following control methods under several time stages.
1) And testing the cleaning machine before the cleaning machine leaves factory.
When the cleaning machine tests the cleaning without any fault before leaving the factory, and when the cleaning machine enters water, the motor in the cleaning machine is controlled to start to work, the water inlet valve is controlled to be opened, and the drain valve is controlled to be in a closed state. The water flow with known water flow speed is adopted, the motor power can be changed due to the influence of the water flow in the water inlet process of the cleaning machine, the motor power is collected in real time in the water inlet process, the waveform of the motor power is close to a linear section which obliquely rises in the early stage of water inlet, and the motor power tends to be stable after the water amount in the machine body reaches a certain amount. After a plurality of tests, the relation between the motor power and the water flow speed of the ascending linear section or the calculation function between the motor power and the water flow speed can be obtained, and the calculation function is prestored in a control circuit board of the cleaning machine. Meanwhile, a more reasonable stable power interval in the stable state of the motor power can be obtained and used as a preset stable power interval, and then the stable power interval is stored in the control circuit board. In this embodiment, px is the minimum value of the preset stable power interval.
As shown in fig. 1, a water source normally used by a user's home is introduced into the washing machine, and a corresponding water flow rate is calculated according to a pre-stored calculation function, so as to form a water flow rate pre-stored value V00 which is pre-stored in the control circuit board.
The acquisition process of V00 is: the cleaning machine is started to work, the starting motor is controlled, and the drainage valve in the cleaning machine is controlled to be opened to drain water. And after the drainage is finished, controlling to close the drainage valve, then controlling to open the water inlet valve, and recording the time point Ts of opening the water inlet valve. And acquiring the motor power P when the motor works in real time. After the motor power has stabilized at the steady power Pw, the time point Tw when the motor has just reached the steady power Pw is recorded. The determination criterion for Pw stability is that Pw is maintained within a stable power interval and the power change rate is smaller than a small value.
And calculating the water flow speed V00 of the inlet water of the cleaning machine based on a prestored calculation function according to the motor power data collected in the time interval from the time point Ts to the time point Tw. This V00 is stored in the control circuit board as a water flow rate pre-stored value.
In addition, because the cleaning machine needs to drain water after starting, the water inlet operation is avoided under the condition that water is reserved in the cleaning machine, and the condition that the water quantity in the cleaning machine is too much or water overflows is correspondingly avoided. When the test is carried out, the reasonable time length when the cleaning machine drains water and the reasonable power corresponding To the motor are counted and recorded, then reasonable calculation selection is carried out, the Po is determined To be the minimum power threshold value when the preset motor carries out drainage work, and the To is the time threshold value when the preset motor carries out drainage work.
2) After the cleaning machine leaves the factory normally, the user uses the cleaning machine.
2.1, a drainage stage after the cleaning machine is started.
As shown in fig. 2, the washing machine is started to operate, and the starting motor is controlled.
Because the water flow sensor is not arranged in the cleaning machine, the water quantity condition in the base body cannot be directly judged, if the cleaning machine is shut down or more water is injected into the cleaning machine body due to the reason of a waterway system, the risk of overflow exists, at the moment, overflow detection is firstly carried out, and the removal of the overflow condition is effectively realized.
After the cleaning machine is started, the cleaning machine detects the overflow fault of the cleaning machine before the drainage work is carried out. Specifically, before the motor is started and the drain valve is not started, the motor power P is obtained in real time, and the P and a set overflow fault power threshold Py are compared, if the P is larger than or equal to the Py, the possibility of overflow is judged, and then overflow fault alarm is carried out. Accordingly, the cleaning machine can be controlled to stop. After the user sees the overflow fault alarm, the user can discharge water in the machine body in various modes.
And if the overflow fault alarm does not exist, controlling to open a drain valve in the washing machine to drain water.
When the drainage work is carried out, the motor power P is obtained in real time, meanwhile, the drainage time Tp is timed, and whether the P and the Tp meet the following conditions or not is judged: p is less than or equal To Po and Tp is less than or equal To, namely P is less than or equal To Po when the drainage time does not reach To; if yes, judging that the water drainage is finished, and controlling to close the water drainage valve. Whether the drainage in the testing stage is finished or not can also be judged by adopting the method.
If case A occurs: if the drainage time Tp exceeds To and P is still greater than Po, a drainage blockage may occur, and at this time, the motor may be restarted To perform a drainage attempt again. If the frequency of the continuous occurrence of the condition A reaches the set frequency B, B is more than or equal to 2, and B =3 in the embodiment. And judging that the drainage fault occurs, and alarming the drainage fault. The user checks the condition in the cleaning machine according to the drainage fault alarm, checks whether dirt which is difficult to clean blocks a water outlet of the cleaning machine, and correspondingly processes the dirt.
For the case of a drainage failure, if the user does not respond, the washing machine can be directly controlled to stop.
Because the cleaning machine also usually has the drainage to detect after wasing, the cleaning machine can start work, shows usually that the drainage trouble does not appear after the work of the previous time, also can control the cleaning machine to continue to carry out subsequent work, the cleaning work of intaking on this basis. In this embodiment, under the condition of determining the drainage fault, the motor power is no longer used as the parameter for calculating the water flow speed, the drainage valve is controlled to be closed, then the water inflow is controlled to reach the set water inflow of the cleaning operation according to the water flow speed pre-stored value V00, and then the cleaning operation is controlled to be performed.
2.2, a water inlet stage after the cleaning machine is started.
Controlling to open the water inlet valve, and recording a time point Ts of opening the water inlet valve; acquiring the motor power P of the motor during working in real time; recording a time point Tw when the motor reaches the stable power Pw after the motor power is stabilized at the stable power Pw; calculating the water flow speed V0 of the inlet water of the cleaning machine according to the motor power data collected from the time point Ts to the time point Tw in the time interval and a prestored calculation function; the method for acquiring V0 is the same as the method for acquiring V00 described above.
And controlling the water inlet of the cleaning machine to reach the preset water inlet amount of the current cleaning work according to the water flow speed V0, and then controlling to close the water inlet valve and control to perform the cleaning work.
When the cleaning machine is used, water is fed and whether the situation that the water inlet flow is too small exists is judged;
after the water inlet valve is opened, calculating the real-time water flow speed V before the motor power P reaches the stable power Pw, restarting the water inlet valve if the difference value of V smaller than the water flow speed prestored value V00 is larger than a preset difference threshold value delta V, judging the condition that the water inlet flow is too small if the difference value of V smaller than the water flow speed prestored value V00 obtained by continuous C times of calculation is still larger than the preset difference threshold value delta V, and alarming that the water inlet flow is too small; wherein C represents the restarting frequency of the water inlet valve, and C is more than or equal to 1.
And calculating the real-time water flow speed V in the water inlet process of the cleaning machine, wherein the real-time water flow speed V can be calculated by utilizing a pre-stored calculation function according to the currently acquired motor power data and sampling time. If the machine is stopped, calculating the water inflow in the cleaning machine according to V, further calculating the corresponding water drainage time according to the water inflow, and then controlling to open the water drainage valve according to the water drainage time so as to carry out water drainage work.
2.3 the cleaning working stage after the cleaning machine is started.
As shown in fig. 2, when the cleaning machine performs cleaning operation, the power data of the motor is acquired in real time, and if the power data of the motor continuously decreases and the amount of decrease in unit time exceeds a set decrease threshold, it is determined that water leakage occurs, and a water leakage alarm is performed. Under the condition of water leakage judgment, in order to ensure the use safety of the cleaning machine, the heating device in the cleaning machine can be controlled to stop working, the dry burning condition is avoided, and meanwhile, water is controlled to be supplemented into the machine body.
2.4 shutdown stage after the operation of the cleaning machine is finished.
When the washing machine does not work, the overflow condition in the machine body may occur due to the fault of the water inlet valve or human reasons, and the overflow detection method in the embodiment when the washing machine does not work is as follows: and controlling and starting the motor according to a set time interval, detecting and acquiring the power P of the motor, comparing the power P with a set water power threshold Pz, and performing overflow early warning if the power P is more than or equal to the Pz. The water power threshold Pz is preferably set to a value slightly lower than Px, so that the condition that the machine body starts to have water can be effectively judged, and the more serious overflow condition is avoided. The set time interval is reasonably set according to needs, such as detection once every 6 hours.
2.5 post-long-term use of the washer.
After the motor is used for a long time, the performance of the motor is reduced, and the motor power is changed when the cleaning machine works compared with the motor power when the performance of the motor is good, so that the performance of the motor needs to be judged.
As shown in fig. 3, during the water intake process, if the steady power Pw is less than the minimum value Px of the preset steady power interval, which may be caused by the performance degradation of the motor, the cleaning machine is controlled to restart, and when the number of times of restarting the cleaning machine reaches the set restart number D, pw is still less than the minimum value Px of the preset steady power interval, which indicates that the motor is not an accidental performance problem and the performance of the motor is actually degraded. And controlling the cleaning machine to work according to the last water inflow flow rate when the motor performance is normal, namely controlling the cleaning machine to finish water inflow according to the last water inflow flow rate when the motor stable power Pw is positioned in a preset stable power interval state.
And then comparing the motor power P acquired in real time with a set water power threshold Pz when the cleaning machine carries out subsequent cleaning work. If P is larger than or equal to Pz, the performance of the motor is not seriously reduced, and at the moment, a heating device in the cleaning machine is normally started to carry out cleaning work under the condition that heating is needed in the current cleaning process. If P < Pz, the motor may have serious performance degradation problem, and at this time, in order to ensure the use safety of the cleaning machine, the heating device in the cleaning machine is controlled to keep a closed state to perform cleaning operation.
In the process of using the cleaning machine, if the cleaning work is continuously carried out for N times under the condition that the cleaning machine is used and P < Pz occurs and the heating device keeps the closed state, judging that the motor has an abnormal condition, and carrying out motor abnormity alarm, wherein N is a positive integer which is more than or equal to 2, and N represents the number of times of judging the motor abnormity. The user can report according to the abnormal alarm of motor.
And under the condition that the motor is judged to be abnormal, when the cleaning machine does not work, controlling to start a drying motor in the cleaning machine according to a set time interval to carry out overflow early warning detection. Specifically, the rotating speed R of the drying motor is detected and acquired, the rotating speed R is compared with a prestored minimum normal rotating speed threshold value R0 of the drying motor, and if the rotating speed R is less than R0, overflow early warning is controlled.
According to the cleaning method of the cleaning machine without the water flow sensor, on the basis that the water flow sensor is not needed, under the condition that water flow data cannot be acquired, the detection and calculation of the water flow speed are achieved through the motor power, and therefore the normal operation of water inlet work of the cleaning machine is guaranteed. On the basis, various abnormal conditions in the cleaning machine can be judged by utilizing the power data of the motor. The cleaning machine using the method has low cost and low maintenance rate.
In addition, the cleaning method of the cleaning machine without the water flow sensor can also be applied to the cleaning machine with the water flow sensor and the water level sensor, and when the water flow sensor and the water level sensor are in failure, the method can be used for working.
Claims (13)
1. A cleaning method of a cleaning machine of a waterless flow sensor is characterized by comprising the following steps: the method comprises the following steps:
starting the cleaning machine, controlling a starting motor, and controlling to open a drain valve in the cleaning machine to drain water;
after the drainage is finished, controlling to close the drainage valve, then controlling to open the water inlet valve, and recording the time point Ts of opening the water inlet valve;
acquiring the motor power P of the motor during working in real time; after the power of the motor is stabilized at the stable power Pw, recording a time point Tw when the motor just reaches the stable power Pw;
calculating the water flow speed V0 of the inlet water of the cleaning machine according to the motor power data collected in the time interval from the time point Ts to the time point Tw;
and controlling the water inlet of the cleaning machine to reach the preset water inlet amount of the current cleaning work according to the water flow speed V0, and then controlling to close the water inlet valve and control to perform the cleaning work.
2. The cleaning method of a cleaning machine for a waterless flow sensor according to claim 1, characterized by comprising: before the cleaning machine leaves a factory, detecting and acquiring a water flow speed prestored value V00 according to a method for acquiring V0;
in the use process of the cleaning machine, if drainage faults occur, the drainage valve is controlled to be closed, water inlet is controlled according to the water flow speed pre-stored value V00, and then cleaning work is carried out.
3. The cleaning method of a cleaning machine for a waterless flow sensor according to claim 2, characterized in that: and under the condition of drainage fault, controlling the water inflow to reach the set water inflow of the cleaning work according to the water flow speed prestored value V00.
4. The method of cleaning a cleaning machine for a waterless flow sensor according to any one of claims 1 to 3, characterized by: the method for judging the end of drainage comprises the following steps: when drainage work is carried out, the power P of the motor is obtained in real time, and meanwhile, the drainage time Tp is timed;
judging whether P and Tp meet the following conditions: p is less than or equal To Po, and Tp is less than or equal To, wherein Po is a preset minimum power threshold value for the motor To perform drainage work; to is a preset time threshold value for the motor To perform drainage work; if yes, judging that the drainage is finished, and controlling to close the drainage valve;
if case A occurs: if the drainage time exceeds To and P is still greater than Po, restarting the motor To drain water; if the continuous occurrence frequency of the condition A reaches the set frequency B, and B is more than or equal to 2, judging that the drainage fault occurs, and alarming the drainage fault.
5. The cleaning method of the cleaning machine for a waterless flow sensor according to any one of claims 1 to 3, characterized by: detecting the overflow fault of the cleaning machine before the drainage work;
and (3) acquiring the power P of the motor in real time before the motor is started and the drain valve is not started, and judging that an overflow condition possibly occurs if P is not less than Py and comparing the P with a set overflow fault power threshold Py, so as to alarm the overflow fault.
6. The cleaning method of the cleaning machine for a waterless flow sensor according to any one of claims 1 to 3, characterized by: when the cleaning machine is used, water is fed and whether the situation that the water inlet flow is too small exists is judged;
after the water inlet valve is opened, calculating the real-time water flow speed V before the motor power P reaches the stable power Pw, restarting the water inlet valve if the difference value of V smaller than the water flow speed prestored value V00 is larger than a preset difference threshold value delta V, judging the condition that the water inlet flow is too small if the difference value of V smaller than the water flow speed prestored value V00 obtained by continuous C times of calculation is still larger than the preset difference threshold value delta V, and alarming that the water inlet flow is too small; wherein C represents the restarting frequency of the water inlet valve, and C is more than or equal to 1.
7. The cleaning method of the cleaning machine for a waterless flow sensor according to any one of claims 1 to 3, characterized by: when the cleaning machine performs cleaning work, the motor power data are acquired in real time, if the motor power data continuously decrease and the decrease amount in unit time exceeds a set decrease threshold, the condition of water leakage is judged, and water leakage alarm is performed.
8. The cleaning method of the cleaning machine for a waterless flow sensor according to any one of claims 1 to 3, characterized by: in the water inlet process, if the stable power Pw is smaller than the minimum value Px of a preset stable power interval, controlling the cleaning machine to restart, and when the number of times of restarting the cleaning machine reaches a set restart number D, controlling the cleaning machine to work according to the last water inlet flow rate when the motor performance is normal;
meanwhile, when the cleaning machine performs cleaning work, comparing the motor power P acquired in real time with a set water power threshold Pz; if P is more than or equal to Pz, normally starting a heating device in the cleaning machine to carry out cleaning work under the condition that heating is needed in the current cleaning process; if P < Pz, the heating device in the cleaning machine is controlled to keep a closed state to perform the cleaning operation.
9. The method of claim 8, wherein the step of cleaning the waterless flow sensor includes the steps of: and if the cleaning machine continuously performs cleaning work for N times under the condition that P is less than Pz and the heating device keeps a closed state, judging that the motor is abnormal, and performing motor abnormality alarm, wherein N is a positive integer greater than or equal to 2 and represents the number of times of motor abnormality judgment.
10. The cleaning method of a cleaning machine for a waterless flow sensor according to claim 9, characterized by: under the condition that the motor is judged to be abnormal, when the cleaning machine does not work, the drying motor in the cleaning machine is controlled to be started according to the set time interval, the rotating speed R of the drying motor is detected and obtained, the R is compared with the prestored minimum normal rotating speed threshold value R0 of the drying motor, and if the R is less than the R0, the overflow early warning is controlled.
11. The cleaning method of the cleaning machine for a waterless flow sensor according to any one of claims 1 to 3, characterized by: when the cleaning machine does not work, the motor is controlled to be started according to a set time interval, the motor power P is detected and obtained, the P is compared with a set water power threshold Pz, and if the P is larger than or equal to the Pz, an overflow early warning is carried out.
12. The cleaning method of the cleaning machine for a waterless flow sensor according to any one of claims 1 to 3, characterized by: in the water inlet process of the cleaning machine, calculating the real-time water flow speed V, if the machine is stopped, calculating the water inflow in the cleaning machine according to V, further calculating the corresponding water drainage time according to the water inflow, and then controlling to open the water drainage valve according to the water drainage time so as to perform water drainage work.
13. A cleaning machine for applying the method of any one of claims 1 to 12, characterized by: the drying machine comprises a machine body with a water inlet and a water outlet, a motor, a drying motor, a heating device and a control circuit board which are arranged in the machine body, a water inlet valve arranged on the water inlet and a water outlet valve arranged on the water outlet, wherein the motor, the drying motor, the heating device, the water inlet valve and the water outlet valve are all in electric signal connection with the control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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