CN115721228A - Dish washing machine and automatic water supplementing method and system thereof - Google Patents
Dish washing machine and automatic water supplementing method and system thereof Download PDFInfo
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- CN115721228A CN115721228A CN202111024644.0A CN202111024644A CN115721228A CN 115721228 A CN115721228 A CN 115721228A CN 202111024644 A CN202111024644 A CN 202111024644A CN 115721228 A CN115721228 A CN 115721228A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 358
- 238000004851 dishwashing Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000001502 supplementing effect Effects 0.000 title description 11
- 238000005406 washing Methods 0.000 claims abstract description 95
- 239000013589 supplement Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000004590 computer program Methods 0.000 claims description 5
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- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
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- 238000001035 drying Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention discloses a dish washer, an automatic water replenishing method and an automatic water replenishing system thereof, wherein the method comprises the following steps: and acquiring the working current of a variable-frequency washing pump in the dish washing machine, determining the water level of an inner container of the dish washing machine according to the working current of the variable-frequency washing pump, and controlling a water inlet valve of the dish washing machine to be opened when the dish washing machine needs water supplement according to the water level of the inner container. The automatic water replenishing method determines the water level of the inner container of the dish washing machine according to the working current of the variable-frequency washing pump, the water level detection is more reliable, and the dish washing machine can be prevented from mistakenly triggering water replenishing.
Description
Technical Field
The invention relates to the technical field of dishwasher control, in particular to an automatic water replenishing system of a dishwasher, a dishwasher and a computer readable storage medium.
Background
At present, when a dish washer is used for washing tableware, the reasons of incorrect placement of the tableware of the dish washer, water leakage of a respirator, insufficient water inflow and the like can cause the actual washing water level of the dish washer to be insufficient, so that the tableware cannot be washed cleanly.
In the related technology, a water level switch is adopted to detect the water level, when the water level is low, a water level signal is fed back to a controller, the rotating speed of the controller is reduced, the water level is prevented from being reduced when the rotating speed of a washing pump is too high, or the controller controls a water inlet valve to be opened to realize water replenishing. In the related art, a floater device is adopted to realize water drainage at a high water level and water supplement at a low water level.
However, since the water level switch is related to the rotation speed of the washing pump, the detection result is unreliable if there is no feedback of the rotation speed. Although the float scheme is exquisite in function, the structure is too complex, and the reliability of the whole machine is not high. In addition, in both of the above two modes, additional parts such as a water level switch and a floater are required, which not only increases the cost, but also results in long production test period and difficult updating.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the first purpose of the invention is to provide an automatic water replenishing method of a dish washing machine, which determines the water level of an inner container of the dish washing machine according to the working current of a variable-frequency washing pump, improves the reliability of water level detection, can effectively avoid the dish washing machine from mistakenly triggering water replenishing, can wash tableware in a higher water level through the automatic water replenishing of the dish washing machine, and realizes a better washing effect.
The second purpose of the invention is to provide an automatic water replenishing system of a dish washing machine.
A third object of the present invention is to provide a dishwasher.
A fourth object of the invention is to propose a computer-readable storage medium.
In order to achieve the above object, a first aspect of the present invention provides an automatic water replenishing method for a dishwasher, including: obtaining the working current of a variable frequency washing pump in the dish washing machine; determining the water level of the inner container of the dishwasher according to the working current of the variable-frequency washing pump; and when the water needs to be replenished according to the water level of the inner container, controlling a water inlet valve of the dishwasher to open.
According to the automatic water replenishing method of the dish washing machine, the working current of the variable-frequency washing pump in the dish washing machine is firstly obtained, the water level of the inner container of the dish washing machine is determined according to the working current of the variable-frequency washing pump, and when the water replenishing requirement of the dish washing machine is determined according to the water level of the inner container, the water inlet valve of the dish washing machine is controlled to be opened. Therefore, the method can determine the water level of the inner container of the dish washing machine according to the working current of the variable-frequency washing pump, improves the reliability of water level detection, can effectively avoid error triggering of the dish washing machine for water supplement, can wash tableware in a high water level through automatic water supplement of the dish washing machine, and achieves a good washing effect.
In addition, the automatic water replenishing method of the dishwasher according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the method for determining the water level of the liner of the dishwasher according to the working current of the variable-frequency washing pump comprises the following steps: determining an average current value, a maximum current value and a minimum current value according to the working current of the variable-frequency washing pump within a first preset time; and determining the water level of the inner container of the dishwasher according to the average current value, the maximum current value and the minimum current value.
According to an embodiment of the present invention, determining the water level of the tub of the dishwasher according to the average current value, the maximum current value and the minimum current value includes: and when the average current value is smaller than a first preset current threshold value, the maximum current value is smaller than a second preset current threshold value, and the minimum current value is smaller than a third preset current threshold value, determining that the water level of the inner container of the dish washing machine is smaller than a preset water level.
According to one embodiment of the present invention, after controlling a water inlet valve of the dishwasher to be opened, a time is started, and when the time reaches a second preset time, the water inlet valve is controlled to be closed.
According to another embodiment of the invention, after controlling the water inlet valve of the dishwasher to be opened, the water supplementing quantity is also acquired, and when the water supplementing quantity reaches a preset value, the water inlet valve is controlled to be closed.
According to an embodiment of the present invention, the automatic water replenishing method of the dishwasher further includes: and acquiring the opening times of the water inlet valve, and forbidding the dishwasher to automatically replenish water when the opening times reach the preset times.
According to an embodiment of the present invention, the heating device of the dishwasher is also controlled to stop heating operation when the feed valve of the dishwasher is controlled to be opened.
In order to achieve the above object, a second embodiment of the present invention provides an automatic water replenishing system for a dishwasher, comprising: the current detector is used for detecting the working current of the variable frequency washing pump in the dishwasher; and the water inlet controller is used for determining the water level of the inner container of the dish washing machine according to the working current of the variable-frequency washing pump and controlling the water inlet valve of the dish washing machine to be opened when the dish washing machine needs to be replenished according to the water level of the inner container.
According to the automatic water replenishing system of the dish washing machine, the current detector detects the working current of the variable-frequency washing pump in the dish washing machine, the water inlet controller determines the water level of the inner container of the dish washing machine according to the working current of the variable-frequency washing pump, and controls the water inlet valve of the dish washing machine to be opened when the dish washing machine needs water replenishing according to the water level of the inner container, so that the automatic water replenishing of the dish washing machine is realized. From this, this system can confirm the inner bag water level of dish washer according to the operating current of frequency conversion washing pump, has improved the reliability that water level detected, can effectively avoid dish washer spurious triggering moisturizing simultaneously, through the automatic water supply of dish washer, can be so that the tableware washes in higher water level, realizes better washing effect.
In order to achieve the above object, a dishwasher according to a third aspect of the present invention includes: the automatic water replenishing method of the dishwasher is realized when the processor executes the automatic water replenishing program of the dishwasher.
According to the dishwasher provided by the embodiment of the invention, by executing the automatic water replenishing method of the dishwasher, the water level of the inner container of the dishwasher can be determined according to the working current of the variable-frequency washing pump, the reliability of water level detection is improved, meanwhile, the dishwasher can be effectively prevented from mistakenly triggering water replenishing, and through the automatic water replenishing of the dishwasher, tableware can be washed in a higher water level, so that a better washing effect is realized
In order to achieve the above object, a computer readable storage medium is provided in an embodiment of a fourth aspect of the present invention, which stores a computer program, and the computer program is executed by a processor to implement the automatic water replenishing method of the dishwasher.
According to the computer-readable storage medium of the embodiment of the invention, by executing the automatic water replenishing method of the dish washing machine, the water level of the inner container of the dish washing machine can be determined according to the working current of the variable-frequency washing pump, the reliability of water level detection is improved, meanwhile, the dish washing machine can be effectively prevented from mistakenly triggering water replenishing, and through the automatic water replenishing of the dish washing machine, tableware can be washed in a higher water level, so that a better washing effect is realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flowchart of an automatic water replenishing method of a dishwasher according to an embodiment of the present invention;
FIG. 2 is a block diagram of an automatic refill system for a dishwasher, according to one embodiment of the present invention;
FIG. 3 is a block diagram of an automatic refill system for a dishwasher, according to an embodiment of the present invention;
FIG. 4 is a block schematic diagram of a dishwasher in accordance with an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An automatic water replenishing method of a dishwasher, an automatic water replenishing system of a dishwasher, and a dishwasher according to embodiments of the present invention will be described with reference to the accompanying drawings.
The present application can complete the water level detection and implement the water replenishing action without introducing a new component, and the following explains how to implement the automatic water replenishing of the dishwasher with reference to fig. 2.
Referring to fig. 2, the automatic water replenishing system of the dishwasher may include: a variable frequency washing pump 30, a current detector 10, a variable frequency drive 40, a flow meter 50, a water inlet valve 60 and a water inlet controller 20. The variable frequency driver 10, the current detector 10 and the water inlet controller 20 may be integrated on the same circuit board, or may be integrated on different circuit boards. The variable frequency drive 30 and the current detector 10 are respectively connected to the variable frequency washing pump 30, the current detector 10 is used for detecting the working current of the variable frequency washing pump 30, and the variable frequency drive 40 is used for generating an SPWM (Sinusoidal Pulse Width Modulation) signal to enable the variable frequency washing pump to act. The water inlet controller 60 is connected to the flow meter 50 and the water inlet valve 50, the flow meter 50 converts water amount information into pulse signals to feed back the pulse signals to the water inlet controller 20, and the water inlet controller 60 is used for controlling the working state of the water inlet valve 60. The combination of the variable frequency washing pump 30, the current detector 10 and the variable frequency drive 40 is equivalent to constituting a water level detection sensor for transmitting a water level signal to the water inlet controller 20.
Specifically, when the dishwasher washes dishes, the current detector 10 detects the working current of the variable frequency washing pump 30, the water inlet controller 20 determines the water level of the liner of the dishwasher according to the working current detected by the current detector 10, and controls the water inlet valve 60 to be opened when the water level of the liner is low, so that the dishwasher automatically supplies water; when the water amount flowing through the flow meter 50 reaches a preset value, the flow meter 50 converts the water amount into pulses to be fed back to the water inlet controller 20, the water inlet controller 20 controls the water inlet valve 60 to be closed, and the automatic water replenishing process of the dishwasher is completed.
Fig. 1 is a flowchart of an automatic water replenishing method of a dishwasher according to an embodiment of the present invention.
In one embodiment of the invention, the dishwasher mainly refers to a variable frequency dishwasher, the variable frequency dishwasher can adjust the rotating speed of washing of a variable frequency washing pump by adjusting voltage, and can also select proper washing water flow, time and rotating speed according to the degree of the soiling of tableware. Because the direct drive motor is used in the variable frequency dishwasher, the use of transmission parts such as a transmission belt and the like is avoided, the noise of the variable frequency washing pump is greatly reduced, and the failure rate is lower. In addition, in the whole washing and drying process, the rotating speed of the variable-frequency washing pump can be controlled by the variable-frequency technology, so that energy and power are saved.
As shown in fig. 1, an automatic water replenishing method of a dishwasher according to an embodiment of the present invention may include the steps of:
s1, obtaining the working current of a variable frequency washing pump in the dish washing machine.
In one embodiment of the invention, a current detector is arranged in the dishwasher and used for detecting the working current of the variable-frequency washing pump; or the working voltage of the variable-frequency washing pump is detected according to a voltage detector arranged in the dish-washing machine, and then the working current of the variable-frequency washing pump can be further obtained according to the relation between the current and the voltage.
When the dishwasher performs a washing operation, the variable frequency drive in the dishwasher controls the variable frequency washing pump to perform a washing operation according to the washing signal. The working current of the variable-frequency washing pump is not constant, and the working current is related to the quantity of the washed tableware and the water level of the inner container of the dishwasher, so that the water level of the inner container of the dishwasher can be determined according to the working current of the variable-frequency washing pump.
And S2, determining the water level of the inner container of the dish washing machine according to the working current of the variable-frequency washing pump.
In the working process of the variable-frequency washing pump, the working current of the variable-frequency washing pump is detected in real time through a current detector in the dish washing machine, and the detected working current is fed back to the water inlet controller. The water inlet controller determines the water level of the inner container of the dishwasher according to the detected working current in a period of time.
According to one embodiment of the invention, the determining of the water level of the liner of the dishwasher according to the working current of the variable frequency washing pump can comprise: determining an average current value, a maximum current value and a minimum current value according to the working current of the variable-frequency washing pump within a first preset time; and determining the water level of the inner container of the dishwasher according to the average current value, the maximum current value and the minimum current value. The first preset time may be calibrated according to a time condition, for example, the first preset time may be 5s.
Further, according to an embodiment of the present invention, determining the water level of the tub of the dishwasher according to the average current value Ia, the maximum current value Imax, and the minimum current value Imin may include: and when the average current value Ia is smaller than a first preset current threshold value I1, the maximum current value Imax is smaller than a second preset current threshold value I2, and the minimum current value Imin is smaller than a third preset current threshold value I3, determining that the water level of the inner container of the dishwasher is smaller than the preset water level. The first preset current threshold, the second preset current threshold, the third preset current threshold and the preset water level may be calibrated according to actual conditions, for example, the preset water level may be a value within a range of [1.0l,2.5l ], and a specific selected value may be combined with the capacity of the dishwasher.
Specifically, when the dishwasher performs washing operation, the magnitude of the real-time working current of the variable frequency washing pump is closely related to the water level of the inner container of the dishwasher. Under the general condition, the higher the water level of an inner container of the dish washing machine is, the larger the load of the dish washing machine is, and the larger the real-time working current of the variable-frequency washing pump is; along with the water level of the inner container of the dish washing machine becomes lower, the load of the dish washing machine also becomes smaller, and the real-time working current of the variable-frequency washing pump is also reduced. Therefore, the water level of the inner container of the dish washer can be obtained according to the real-time working current of the variable-frequency washing pump.
Specifically, during the washing operation of the inverter washing pump, the real-time working current of the inverter washing pump is not in a stable state, and there may be abnormal fluctuation of the working current. In order to eliminate the influence caused by abnormal fluctuation of the working current of the variable-frequency washing pump and prevent the condition of error judgment when the water level of the inner container of the dish washing machine is detected, the working current values of all the variable-frequency washing pumps in a period of time (first preset time, such as 5 s) can be obtained, the working current values are calculated, the average current value Ia (the ratio of the sum of all the collected working currents to the number of all the collected working currents) of the working current of the variable-frequency washing pump in a period of time (first preset time), the maximum current value Imax and the minimum current value Imin (the maximum current value and the minimum current value can be obtained through corresponding functions) can be obtained through calculation, and then the water level of the inner container of the dish washing machine can be comprehensively judged according to the average current value Ia (the working current), the maximum current value and the minimum current value (the maximum current value) of the working current.
When Ia (average current value), imax (maximum current value) and Imin (minimum current value) of the real-time working current of the variable-frequency washing pump simultaneously meet the condition that (1) Ia (average current value) is smaller than I1 (first preset current threshold value); (2) Imax (maximum current value) is smaller than I2 (second preset current threshold); (3) Imin (minimum current value) is less than I3 (third preset current threshold), can judge that the inner bag water level of dish washer is low excessively, is less than preset water level promptly, needs to carry out the moisturizing to the inner bag of dish washer this moment.
And S3, controlling a water inlet valve of the dish washing machine to open when the dish washing machine needs to replenish water according to the water level of the inner container.
Particularly, when judging that dish washer inner bag water level is lower (being less than preset water level), when needing to carry out the moisturizing, can control dish washer's water intaking valve and open for during water flows into the inner bag, realize the automatic water supply of dish washer. After water is supplemented, the water level of the inner container of the dish washing machine rises, and the tableware washed in the dish washing machine is immersed in a higher water level for washing, so that a better washing effect is realized.
Therefore, by the automatic water replenishing method, the water level of the inner container of the dish washing machine can be determined according to the working current of the variable-frequency washing pump, when the water level of the inner container of the dish washing machine is low and water is required to be replenished, the water inlet valve can be controlled to be opened, the automatic water replenishing of the dish washing machine is realized, the reliability of water level detection is improved, the dish washing machine can be prevented from being mistakenly triggered to replenish water, new components are not required to be added in the dish washing machine when the water level is detected and the automatic water replenishing is realized, the automatic water replenishing of the dish washing machine can be realized only by upgrading software, the production and test period is not required to be prolonged, and the production cost is saved.
The following describes in detail how the inlet valve of the dishwasher is controlled in the above-described embodiment of the present invention.
According to one embodiment of the present invention, a time is started after controlling a feed valve of the dishwasher to be opened, and the feed valve is controlled to be closed when the time reaches a second preset time. The second preset time is calibrated according to actual conditions, and for example, the second preset time can be set according to relevant parameters of the dishwasher (such as the volume of the inner container of the dishwasher).
In other words, when the water level of the inner container of the dishwasher is judged to be low and water needs to be supplemented, the water inlet valve is controlled to be opened, water flows into the inner container of the dishwasher through the water inlet valve, and timing is started at the moment. Along with the accumulation of time, water is continuously supplemented into the inner container of the dish washing machine, and the water level in the inner container of the dish washing machine continuously rises along with the time. When the water replenishing time reaches the second preset time, the tableware can be immersed again by the water level in the inner container of the dish washer, the water inlet valve of the dish washer is controlled to be closed, and the water replenishing is stopped.
In an embodiment of the invention, when the opening degree of the water inlet valve can be adjusted, the second preset time is set not only in relation to the capacity of the inner container, but also in relation to the opening degree of the water inlet valve, and under the condition that the capacity of the inner container is determined, the larger the opening degree of the water inlet valve is, the shorter the second preset time is, the smaller the opening degree of the water inlet valve is, and the larger the second preset time is.
According to another embodiment of the present invention, after controlling the water inlet valve of the dishwasher to be opened, the amount of the supplementary water is also acquired, and when the amount of the supplementary water reaches a preset value, the water inlet valve is controlled to be closed. The preset value can be calibrated according to actual conditions, for example, the preset value can be set according to relevant parameters of the dishwasher, for example, the preset value can be a value in a range of [0.2L,1L ].
In other words, when the water inlet valve of the dishwasher is controlled to replenish water to the dishwasher liner, the amount of water flowing into the dishwasher liner is counted, for example, the flow rate of water flowing into the dishwasher liner can be obtained through the flow meter. When the water quantity flowing into the inner container of the dish washing machine, namely the water supplementing quantity, reaches the water supplementing preset value, the water inlet valve can be controlled to be closed, water supplementing to the inner container of the dish washing machine is stopped, the water level in the inner container is prevented from being too high, the washing effect is prevented from being influenced, and the energy consumption is prevented from being increased.
According to an embodiment of the present invention, the automatic water replenishing method of the dishwasher may further include: and acquiring the opening times of the water inlet valve, and forbidding the dishwasher to automatically replenish water when the opening times reach the preset times. The preset times can be set according to actual conditions, for example, can be set according to specific parameters of the dishwasher, and for example, the preset times can be 4-20 times.
In particular, during the dishwashing process of the dishwasher, the water level of the inner tub of the dishwasher may be detected to be lower more than once as water is sprayed and evaporated, i.e. water needs to be replenished for many times. In the working process of the dishwasher, the water level of the inner container is uninterruptedly detected, and when the water level of the inner container is insufficient, the water inlet valve is opened to supplement water; after the water is supplemented, the dishwasher continues to work, the water level is continuously detected, water is supplemented when the water level is insufficient, the operation is repeated, and the water is supplemented to the inner container of the dishwasher until the water supplementing times reach certain times (preset times). When the water replenishing times reach certain times (preset times), the dishwasher works for a long time, tableware in the dishwasher is cleaned, and the washing operation of the dishwasher is stopped to avoid resource waste.
In order to protect the components in the dishwasher from being damaged, in one embodiment of the present invention, a heating device of the dishwasher is also controlled to stop heating operation while controlling a water inlet valve of the dishwasher to be opened.
That is, when the water level of the inner tub of the dishwasher is low and water needs to be replenished, the heating device of the dishwasher may be exposed to the water, and if the heating device of the dishwasher is still in a heating state at this time, the heating device may be dried, thereby causing damage to the heating device. Therefore, when the water inlet valve is controlled to be opened, the heating device can be controlled to stop heating at the moment, so that dry burning of the heating device is avoided, and the service life of the heating device is prolonged.
In conclusion, according to the automatic water replenishing method of the dish washing machine, the water level of the inner container of the dish washing machine can be determined according to the working current of the variable-frequency washing pump, the reliability of water level detection is improved, meanwhile, the dish washing machine can be effectively prevented from mistakenly triggering water replenishing, and tableware can be washed in a high water level through the automatic water replenishing of the dish washing machine, so that a good washing effect is realized.
Corresponding to the embodiment, the invention also provides an automatic water replenishing system of the dishwasher.
FIG. 3 is a block diagram of an automatic refill system for a dishwasher in accordance with an embodiment of the present invention.
As shown in fig. 3, the automatic water replenishing system of the dishwasher according to the embodiment of the present invention may include: a current detector 10 and an intake controller 20.
Wherein, the current detector 10 is used for detecting the working current of the variable frequency washing pump in the dishwasher; the water inlet controller 20 is used for determining the water level of the inner container of the dishwasher according to the working current of the variable-frequency washing pump, and controlling the water inlet valve of the dishwasher to be opened when the water of the dishwasher is determined to be required to be supplemented according to the water level of the inner container.
According to an embodiment of the present invention, the water inlet controller 20 determines a water level of an inner container of the dishwasher according to an operating current of the variable frequency washing pump, and is specifically configured to determine Ia (average current value), imax (maximum current value) and Imin (minimum current value) according to the operating current of the variable frequency washing pump within a first preset time; and determining the water level of the inner container of the dishwasher according to Ia (average current value), imax (maximum current value) and Imin (minimum current value).
According to an embodiment of the present invention, the water inlet controller 20 determines the water level of the tub of the dishwasher according to Ia (average current value), imax (maximum current value) and Imin (minimum current value), and particularly, determines that the water level of the tub of the dishwasher is less than a preset water level when Ia (average current value) is less than I1 (first preset current threshold), imax (maximum current value) is less than I2 (second preset current threshold) and Imin (minimum current value) is less than I3 (third preset current threshold).
According to an embodiment of the present invention, the water inlet controller 20 starts a time count after controlling the water inlet valve of the dishwasher to be opened, and controls the water inlet valve to be closed when the time count reaches a second preset time.
Specifically, when it is determined that the water level of the inner tub of the dishwasher is low and water needs to be replenished, the water inlet controller 20 controls the water inlet valve to be opened, and water flows into the inner tub of the dishwasher through the water inlet valve, at which time, timing is started. Along with the accumulation of time, water is continuously supplemented into the inner container of the dish washing machine, and the water level in the inner container of the dish washing machine continuously rises along with the time. When the water replenishing time reaches the second preset time, the tableware can be immersed again by the water level in the inner container of the dish washer, the water inlet valve of the dish washer is controlled to be closed, and the water replenishing is stopped.
According to another embodiment of the present invention, the water inlet controller 20 is further configured to obtain the amount of the supplementary water after controlling the opening of the water inlet valve of the dishwasher, and to control the closing of the water inlet valve when the amount of the supplementary water reaches a preset value.
Specifically, when the water inlet valve of the dishwasher is controlled to replenish water to the dishwasher liner, the water inlet controller 20 counts the amount of water flowing into the dishwasher liner, for example, the flow rate of water flowing into the liner can be obtained by a flow meter. When the water quantity flowing into the inner container of the dish washing machine, namely the water supplementing quantity, reaches the water supplementing preset value, the water inlet valve can be controlled to be closed, water supplementing to the inner container of the dish washing machine is stopped, the water level in the inner container is prevented from being too high, the washing effect is prevented from being influenced, and the energy consumption is prevented from being increased.
According to an embodiment of the present invention, the water inlet controller 20 is further configured to obtain the number of times the water inlet valve is opened, and prohibit the dishwasher from automatically replenishing water when the number of times the water inlet valve is opened reaches a preset number.
According to an embodiment of the present invention, the water inlet controller 20 is also used to control the heating device of the dishwasher to stop the heating operation when controlling the inlet valve of the dishwasher to be opened.
Specifically, when the water level of the inner container of the dishwasher is low and water needs to be supplemented, the heating device of the dishwasher may be exposed from the water surface, and if the heating device of the dishwasher is still in a heating state at the moment, the heating device may be dried, thereby causing damage to the heating device. Therefore, when the water inlet valve is controlled to be opened, the heating device can be controlled to stop heating at the moment, so that dry burning of the heating device is avoided, and the service life of the heating device is prolonged.
In a specific example of the present invention, as shown in fig. 2, the automatic water replenishing system of the dishwasher may further include: the device comprises a current detector 10, a water inlet controller 20, a variable frequency washing pump 30, a variable frequency driver 40, a flow meter 50 and a water inlet valve 60. Wherein, the variable frequency driver 40 can generate SPWM signal to make the variable frequency washing pump 30 act, the current detector 10 can detect the current of the variable frequency washing pump, and the flow meter 50 can count the water quantity flowing through. The variable frequency driver 40, the current detector 10 and the water inlet controller 20 may be disposed on the same circuit board or may be disposed on different circuit boards. The variable frequency drive 40 and the current detector 10 are connected with the variable frequency washing pump 30, the water inlet controller 20 is connected with the flow meter 50 and the water inlet valve 60, the flow meter 50 converts the water quantity into pulses to feed back to the water inlet controller 20, and the water inlet controller 20 supplies power to the water inlet valve 60 to enable the water inlet valve to operate. The variable frequency washing pump 30, the current detector 10 and the variable frequency drive 40 constitute a water level detection sensor, and transmit a water level signal to the intake controller 20.
Specifically, when the dishwasher washes dishes, the current detector 10 detects the working current of the variable frequency washing pump 30, the water inlet controller 20 determines the water level of the liner of the dishwasher according to the working current detected by the current detector 10, and controls the water inlet valve 60 to be opened when the water level of the liner is low, so that the dishwasher automatically supplies water; when the water amount flowing through the flow meter 50 reaches a preset value, the flow meter 50 converts the water amount into pulses to be fed back to the water inlet controller 20, the water inlet controller 20 controls the water inlet valve 60 to be closed, and the automatic water replenishing process of the dishwasher is completed.
It should be noted that, the details of the automatic water replenishing system of the dishwasher according to the embodiment of the present invention are not disclosed, and please refer to the details disclosed in the automatic water replenishing method of the dishwasher according to the embodiment of the present invention, which are not described herein again.
According to the automatic water replenishing system of the dish washing machine, the water level of the inner container of the dish washing machine can be determined according to the working current of the variable-frequency washing pump, the reliability of water level detection is improved, meanwhile, water replenishing caused by error triggering of the dish washing machine can be effectively avoided, tableware can be washed in a high water level through automatic water replenishing of the dish washing machine, and a good washing effect is achieved.
The invention also provides a dishwasher corresponding to the embodiment.
FIG. 4 is a block schematic diagram of a dishwasher in accordance with an embodiment of the present invention.
As shown in fig. 4, a dishwasher 100 according to an embodiment of the present invention includes: the storage 110, the processor 120 and the computer program stored on the storage 110 and capable of running on the processor 120, when the processor 120 executes the program, the automatic water replenishing method of the dishwasher is realized.
According to the dishwasher provided by the embodiment of the invention, by executing the automatic water replenishing method of the dishwasher, the water level of the inner container of the dishwasher can be determined according to the working current of the variable-frequency washing pump, the reliability of water level detection is improved, meanwhile, the dishwasher can be effectively prevented from mistakenly triggering water replenishing, and tableware can be washed in a higher water level through the automatic water replenishing of the dishwasher, so that a better washing effect is realized.
The invention further provides a computer readable storage medium corresponding to the above embodiment.
The computer readable storage medium according to an embodiment of the present invention has a computer program stored thereon, which, when executed by a processor, can implement the automatic water replenishment method of the dishwasher proposed in the above-described embodiment of the present invention.
According to the computer-readable storage medium of the embodiment of the invention, by executing the automatic water replenishing method of the dish washing machine, the water level of the inner container of the dish washing machine can be determined according to the working current of the variable-frequency washing pump, the reliability of water level detection is improved, meanwhile, the dish washing machine can be effectively prevented from mistakenly triggering water replenishing, and through the automatic water replenishing of the dish washing machine, tableware can be washed in a higher water level, so that a better washing effect is realized.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An automatic water replenishing method of a dishwasher, comprising:
obtaining the working current of a variable frequency washing pump in the dish washing machine;
determining the water level of an inner container of the dish washing machine according to the working current of the variable-frequency washing pump;
and when the dishwasher needs water supplement according to the water level of the inner container, controlling a water inlet valve of the dishwasher to be opened.
2. The method of claim 1, wherein determining a tub water level of the dishwasher based on the operating current of the variable frequency wash pump comprises:
determining an average current value, a maximum current value and a minimum current value according to the working current of the variable-frequency washing pump within a first preset time;
and determining the water level of the inner container of the dishwasher according to the average current value, the maximum current value and the minimum current value.
3. The method of claim 2, wherein determining a tub water level of the dishwasher from the average current value, the maximum current value, and the minimum current value comprises:
and when the average current value is smaller than a first preset current threshold value, the maximum current value is smaller than a second preset current threshold value, and the minimum current value is smaller than a third preset current threshold value, determining that the water level of the inner container of the dish washing machine is smaller than a preset water level.
4. The method according to any one of claims 1 to 3, wherein a time is started after controlling a water inlet valve of the dishwasher to be opened, and the water inlet valve is controlled to be closed when the time reaches a second preset time.
5. The method according to any one of claims 1 to 3, wherein after controlling a feed valve of the dishwasher to open, a supplementary water amount is also taken, and when the supplementary water amount reaches a preset value, the feed valve is controlled to close.
6. The method according to any one of claims 1-3, further comprising:
and acquiring the opening times of the water inlet valve, and forbidding the dishwasher to automatically replenish water when the opening times reach the preset times.
7. The method as set forth in any one of claims 1 to 3, wherein the heating device of the dishwasher is also controlled to stop heating operation while controlling the feed valve of the dishwasher to be opened.
8. An automatic water replenishing system of a dishwasher, comprising:
the current detector is used for detecting the working current of the variable frequency washing pump in the dishwasher;
and the water inlet controller is used for determining the water level of the inner container of the dish washing machine according to the working current of the variable-frequency washing pump and controlling the water inlet valve of the dish washing machine to be opened when the dish washing machine needs to be replenished according to the water level of the inner container.
9. A dishwasher, comprising: the automatic water replenishing method of the dishwasher is characterized by comprising a memory, a processor and an automatic water replenishing program of the dishwasher, wherein the automatic water replenishing program of the dishwasher is stored on the memory and can be run on the processor, and when the processor executes the automatic water replenishing program of the dishwasher, the automatic water replenishing method of the dishwasher according to any one of claims 1-7 is realized.
10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which when executed by a processor implements an automatic water refill method of a dishwasher according to any one of claims 1 to 7.
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