CN112806939B - Dish washing machine and control method and control device thereof - Google Patents
Dish washing machine and control method and control device thereof Download PDFInfo
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- CN112806939B CN112806939B CN202110086224.9A CN202110086224A CN112806939B CN 112806939 B CN112806939 B CN 112806939B CN 202110086224 A CN202110086224 A CN 202110086224A CN 112806939 B CN112806939 B CN 112806939B
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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
- A47L15/42—Details
- A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
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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
- A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
- A47L15/0007—Washing phases
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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
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
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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
- A47L15/42—Details
- A47L15/4285—Water-heater arrangements
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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
- A47L15/42—Details
- A47L15/4287—Temperature measuring or regulating arrangements
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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
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/12—Water temperature
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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
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve
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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
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/06—Water heaters
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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
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions
Abstract
The invention discloses a dish washing machine and a control method and a control device thereof, wherein the control method comprises the following steps of: under the same heating condition, respectively obtaining the temperature rise values of the same amount of water in a non-spraying state and a spraying state after heating; a temperature interval determining step: acquiring a difference value of temperature rise values in a non-spraying state and a spraying state, and determining a temperature interval in which the difference value is positioned; washing parameter determination: and selecting washing parameters corresponding to the temperature interval, and controlling the dishwasher to operate according to the washing parameters. According to the control method, before each washing, the temperature rise value of the clean water with the fixed volume is used as the judgment reference in the fixed time, so that the heating power of the heating element for each washing is corrected, and the influence of the heating element on the washing process in the long-term use process is reduced.
Description
Technical Field
The invention relates to the technical field of dish-washing machines, in particular to a dish-washing machine and a control method and a control device thereof.
Background
The intelligent washing of the dish washer on the market at present selects the washing time through the turbidity sensor detection dish washer water in the turbidity sensor to solve the user and set for the difficulty or set for the mistake and wash unclean problem because the dish washer mode is too many. However, this control method is limited to the detection accuracy of the turbidity sensor, and the same procedure is used in the case of heavy pollution and light pollution, which causes problems of time and electricity consumption in washing tableware with relatively light pollution.
In the prior art, the control method for adjusting the washing parameters by judging the weight of the tableware placed by heating to the set temperature needs to control the heating element to heat at the preset power, but in the actual use process, due to factors such as voltage, long-term loss and the like, the power of the heating element cannot be guaranteed to be the preset power, the problem of inaccurate judgment can occur, and finally the washing parameters are not adjusted to be in accordance with the actual use condition.
Disclosure of Invention
The method aims to solve the technical problems that the method for judging the weight of the tableware and further controlling the washing parameters through the temperature in the background art has inaccurate judgment results and influences the washing effect. The invention provides a dish washing machine and a control method and a control device thereof, wherein before each washing, the temperature rise value of quantitative clean water is taken as a judgment reference in a fixed time, the difference value between the temperature rise value of the quantitative clean water and the temperature rise value of the corresponding water quantity in the washing process is obtained, the quantity and the pollution degree of tableware put into the dish washing machine are judged according to the difference value, the washing parameters in the main washing stage are determined, and the effect of accurate intelligent control is achieved.
In order to achieve the purpose, the invention provides a dishwasher and a control method and a control device thereof, and the specific technical scheme is as follows:
a control method of a dishwasher mainly comprises the following steps:
a temperature rise obtaining step: under the same heating condition, respectively obtaining the temperature rise values of the same amount of water in a non-spraying state and a spraying state after heating;
a temperature interval determining step: acquiring a difference value of temperature rise values in a non-spraying state and a spraying state, and determining a temperature interval in which the difference value is positioned;
washing parameter determination: and selecting washing parameters corresponding to the temperature interval, and controlling the dishwasher to operate according to the washing parameters.
Further, in the temperature rise obtaining step, the clear water temperature rise obtaining step is included: and (3) injecting quantitative clean water into the washing tank, and heating the water in the washing tank with certain heating power within a certain time to obtain a clean water temperature rise value.
Further, in the temperature rise obtaining step, the method further comprises a turbid water temperature rise obtaining step: and injecting the clean water into the washing tank, wherein the clean water is the same as that in the clean water temperature rise obtaining step, heating the water in the washing tank at the same heating power in the same time, and simultaneously starting the washing pump to obtain a turbid water temperature rise value.
And further, the method comprises a turbid water temperature rise correction step, wherein clean tableware is added into the dish washing machine, the temperature rise value when quantitative washing water is heated under the same heating condition when spraying is not started and spraying is started is obtained, a correction difference value is obtained, and the correction difference value is corrected to the end value of the temperature interval.
Further, in the step of correcting the temperature rise of the turbid water, a main washing program with the lightest pollution and a main washing program with the heaviest pollution are respectively called to obtain temperature difference values, and the corrected difference values are the average values of the temperature difference values.
Further, in the washing parameter determining step, determining a functional relation between the temperature interval and the washing parameter, and storing the functional relation; and when the difference value between the clear water temperature rise value and the turbid water temperature rise value is obtained, the functional relation is adjusted, and the washing parameters are determined.
Furthermore, the difference value between the clear water temperature rise value and the turbid water temperature rise value is positively correlated with the main washing time and the washing temperature of the next washing heating stage.
A control device of a dishwasher, comprising:
the water injection module is used for adding water into a washing tank of the dish washing machine;
the heating module is used for heating water in the washing tank;
the temperature detection module is used for acquiring the temperature of water in the washing tank;
the spraying module is used for spraying water to the tableware above the washing tank according to a washing program;
the comparison module is used for acquiring a difference value between the clear water temperature rise value and the turbid water temperature rise value and determining a temperature interval corresponding to the difference value;
and the control module is used for calling washing parameters corresponding to the temperature interval according to the temperature interval determined by the comparison module and controlling the dishwasher to operate according to the washing parameters.
And further, the device also comprises a turbid water temperature rise correction module, wherein clean tableware is added into the dish washing machine, the temperature rise value when quantitative washing water is heated under the same heating condition when spraying is not started and spraying is started is obtained, a correction difference value is obtained, and the correction difference value is used for correcting the endpoint value of the temperature interval.
A dishwasher comprises the control device of the dishwasher.
The dishwasher and the control method and the control device thereof have the following advantages that:
according to the control method of the dish washing machine, the temperature rise value of the clean water with the fixed volume is used as a judgment reference in the fixed time before each time of washing, so that the heating power of the heating element for each time of washing is corrected, and the influence of the heating element on the washing process in the long-term use process is reduced; the difference value of the temperature rise value of the corresponding water quantity in the washing process is obtained, the quantity and the pollution degree of the tableware placed in the dish washing machine are judged according to the difference value, the washing parameters in the main washing stage are determined, the accurate intelligent control effect is achieved, a turbidity sensor is not needed, and the product cost is reduced.
Drawings
FIG. 1 is a flow chart of a control method of a dishwasher according to the present invention;
FIG. 2 is a flow chart of another embodiment of a control method of the dishwasher of the present invention;
FIG. 3 is a schematic view showing the structure of a control device of the dishwasher according to the present invention.
The reference numbers in the figures illustrate: 1. a control module; 2. a water injection module; 3. a heating module; 4. a temperature detection module; 5. a spraying module; 6. and a comparison module.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, a dishwasher, a control method thereof and a control device thereof will be described in further detail with reference to the accompanying drawings.
As shown in FIG. 1, the control method of the dishwasher of the present invention mainly includes the following steps:
a temperature rise obtaining step: under the same heating condition, respectively obtaining the temperature rise values of the same amount of water in a non-spraying state and a spraying state after heating;
a temperature interval determining step: acquiring a difference value of temperature rise values in a non-spraying state and a spraying state, and determining a temperature interval in which the difference value is positioned;
washing parameter determination: selecting washing parameters corresponding to the temperature interval, and controlling the dishwasher to operate according to the washing parameters.
Under the non-spraying state, the temperature rise value of the heated clean water is obtained, and the temperature rise value of the clean water is used as a judgment reference, so that the power of the heating element for washing each time is corrected, and the influence caused by long-term loss of the heating element and instability of a power supply is effectively avoided; after the dish washer is put into to the tableware, open and spray, water washing tableware, the residue of adhesion falls into the wash tank along with water on the tableware, under the same heating condition, can acquire the temperature rise value of turbid water, because the residue makes the turbidity of the water in the wash tank rise behind the wash tank, water is dirty more, the tableware is dirty more, need call the temperature higher, the longer washing procedure of time, through the temperature rise value that detects turbid water and clear water, and acquire the dirty degree of wash tank water according to difference between them, need not additionally to increase turbidity sensor, reduce cost.
In the temperature rise obtaining step, the clear water temperature rise obtaining step is included: the steps can be completed in a prewashing stage and/or a main washing stage, and the specific steps are as follows: and (3) injecting quantitative clean water into the washing tank, heating the water in the washing tank with certain heating power within a certain time, and obtaining the temperature rise value delta T0 of the heated clean water. Generally, the amount of clean water injected into the washing tank is 3L, the heating time is 5min-10min, and the temperature rise value delta T0 of the clean water is obtained. Preferably, the heating time is 5min, and the water injection amount can be adjusted according to the volume of the washing tank. When washing at every turn, because the influence of factors such as electric wire netting fluctuation, environmental change or heating element loss, the clear water temperature rise value exists stirring, regards clear water temperature rise value as the benchmark intensification range of this washing procedure, revises heating power of heating element at every turn, promotes the detection accuracy, is more convenient for carry out accuracy, intelligent control to the washing process of dish washer.
In the temperature rise obtaining step, the method further comprises a turbid water temperature rise obtaining step: the step is completed in a main washing stage after the clear water temperature rise obtaining step, and the specific steps are as follows: and injecting the clean water into the washing tank, wherein the clean water is the same as that in the clean water temperature rise obtaining step, heating the water in the washing tank at the same heating power in the same time, and meanwhile, starting the washing pump to obtain the heated temperature rise value delta T of the turbid water. The more dirty the wash water, the more dense the residue increases the water density in the wash tank, and heating the same amount of water in the wash tank under the same heating parameters results in a decrease in the temperature rise of the water, i.e. the slower the temperature rise is when heating it. However, since the temperature rise time for each heating is affected by external conditions such as the environment, and since the tableware is placed differently and the temperature rise time is also different, the subsequent washing procedure cannot be determined only by the temperature rise time of the contaminated water, the temperature rise value of the fresh water is required, and the contamination degree of the tableware is determined by the difference between the temperature rise ranges of the fresh water and the contaminated water heated at the same heating power in the same time. The larger the difference between the two values, the more turbid the washing water, indicating that the dishes are more soiled.
In the temperature rise obtaining step, because the spraying needs to be started in the turbid water temperature rise obtaining step, in the washing process, part of washing water can remain in the tableware, so that the water quantity in the washing tank is reduced, the temperature rise of the turbid water under the same heating condition is caused, in order to reduce the influence of the spraying on the temperature rise, the method also comprises a turbid water temperature rise correcting step, the clean tableware is added into the dish washing machine, the temperature rise value when the spraying is not started and the spraying is started and the washing water is heated and quantified under the same heating condition is obtained, the difference value of the two heating conditions is obtained and recorded as a correction difference value, and the correction difference value is corrected to the endpoint value of the temperature interval.
In order to ensure the accuracy of the correction difference value and prevent the influence of the environment or voltage, the operation can be carried out under different conditions to obtain the correction difference value, in the step of correcting the temperature rise of the turbid water, a main washing program with the lightest pollution and a main washing program with the heaviest pollution are respectively called to respectively obtain the temperature difference value, and the correction difference value is the average value of the temperature difference values. In the actual use process, the main washing program with the lightest pollution is the main washing time of 20min and the temperature of 45 ℃; the main washing program with the heaviest pollution is that the main washing time is 60min, and the temperature is 70 ℃. Due to different specifications of the dish washing machine, the washing parameters of the main washing program can be changed according to actual conditions.
Before leaving the factory, determining the difference value between the clear water temperature rise value and the turbid water temperature rise value and the functional relationship between the temperature interval and the washing parameters through experiments, and storing the functional relationship; and when the difference value between the clear water temperature rise value and the turbid water temperature rise value is obtained, the functional relation is adjusted, and the washing parameters are determined.
And when the difference value between the clear water temperature rise value and the turbid water temperature rise value is between the corrected difference value and 0 ℃, namely the difference value is in a first temperature interval, the tableware is almost free of residues and relatively clean, a first washing and heating stage is called, and the first washing and heating stage is the lowest pollution degree. If the main washing time is 20min, the washing temperature is 45 ℃;
when the difference value between the clear water temperature rise value and the turbid water temperature rise value is within the range from 0 ℃ to the first endpoint value A, namely the difference value is in a second temperature interval, indicating that the tableware has less adhering residues, and calling a washing and heating stage II;
when the difference value between the clear water temperature rise value and the turbid water temperature rise value is between the first endpoint value A and the second endpoint value B, namely the difference value is in a third temperature interval, indicating that the tableware is rich in adhering residues, and calling a washing and heating stage III;
and so on, along with the larger difference between the clear water temperature rise value and the turbid water temperature rise value, the longer the main washing time of the next washing heating stage is, and the higher the washing temperature is, namely, the difference between the clear water temperature rise value and the turbid water temperature rise value is in positive correlation with the main washing time and the washing temperature of the next washing heating stage. Usually, the main washing time of the main washing program is a value between the main washing time with the lightest pollution and the main washing time with the heaviest pollution, such as the value between 20min and 60min, and the washing temperature is a value between the main washing temperature with the lightest pollution and the main washing temperature with the heaviest pollution, such as the value between 45 ℃ and 70 ℃. Meanwhile, the interval of each temperature interval can be divided into equal lengths.
To facilitate a detailed description of the present application, it is explained in conjunction with fig. 2 that each washing temperature and washing time are different for different dishwashers.
Obtaining the temperature rise value of clean water before prewashing, putting the same clean tableware into the dishwasher, adding 3L of water under the same heating condition, heating for 5min when not starting spraying and starting spraying, wherein the obtained temperature rise value is 5 ℃.
In actual operation, the temperature rise value after heating with clean water for 5min is 20 ℃ under the assumption that the temperature delta T0 is 20 ℃, namely when spraying is not started:
if the obtained delta T1 is 15 ℃, the delta T0-delta T1 is 5 ℃, the difference value between the obtained delta T0-delta T1 and clear water is the same as the difference value between non-spraying and spraying, a washing program of a first washing and heating stage is called, the washing temperature in the program stage is 45 ℃ at most, and the program washing time is 20 min;
if the obtained delta T1 is 10 ℃, the delta T0-delta T1 is 10 ℃, the washing program of the second washing and heating stage is called, the washing temperature in the program stage is 50 ℃ at most, and the program washing time is 30 min;
by analogy, when the acquired delta T1 is extremely small and the delta T0-delta T1 is approximately equal to the delta T0, the upper limit program of the program in the washing and heating stage is called, the washing temperature in the program stage is 70 ℃ at most, and the program washing time is 60 min.
As shown in fig. 3, the present application also provides a control device of a dishwasher, including:
the water injection module 2 is used for adding water into a washing tank of the dish washing machine;
the heating module 3 is used for heating water in the washing tank;
the temperature detection module 4 is used for acquiring the temperature of water in the washing tank;
the spraying module 5 is used for spraying water to the tableware above the washing tank according to a washing program;
the comparison module 6 is used for acquiring a difference value between the clear water temperature rise value and the turbid water temperature rise value and determining a temperature interval corresponding to the difference value;
and the control module 1 is used for calling washing parameters corresponding to the temperature interval according to the temperature interval determined by the comparison module 6 and controlling the operation of the dishwasher according to the washing parameters.
In addition, the dishwasher also comprises a turbid water temperature rise correction module, wherein clean tableware is added into the dishwasher and used for acquiring the temperature rise value when quantitative washing water is heated under the same heating condition when spraying is not started and spraying is started, acquiring the correction difference value of the temperature rise value and the correction difference value, and correcting the correction difference value by the endpoint value of the temperature interval.
The application also provides a dishwasher, which comprises the control device of the dishwasher.
The control method of the dishwasher, before washing each time, in the fixed time, the temperature rise value of the quantitative clear water is taken as the judgment reference, thus correcting the heating power of the heating element for washing each time and reducing the influence of the heating element on the washing process in the long-term use process; the difference value between the temperature rise value of the washing process and the temperature rise value of the corresponding water quantity is obtained, the quantity and the pollution degree of tableware placed in the dish washing machine are judged according to the difference value, the washing parameters in the main washing stage are determined, the accurate intelligent control effect is achieved, a turbidity sensor is not needed, and the product cost is reduced.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A control method of a dishwasher is characterized by mainly comprising the following steps:
a temperature rise obtaining step: under the same heating condition, respectively obtaining the temperature rise value of clean water heated in a non-spraying state and the temperature rise value of turbid water heated in a spraying state;
a temperature interval determining step: acquiring a difference value between the clear water temperature rise value and the turbid water temperature rise value, and determining a temperature interval in which the difference value is positioned;
washing parameter determination: and selecting washing parameters corresponding to the temperature interval, and controlling the dishwasher to operate according to the washing parameters.
2. The control method of a dishwasher according to claim 1, wherein in the temperature-rise acquiring step, comprising a fresh water temperature-rise acquiring step: and (3) injecting quantitative clean water into the washing tank, and heating the water in the washing tank with certain heating power within a certain time to obtain a clean water temperature rise value.
3. The control method of a dishwasher according to claim 2, further comprising a turbid water temperature rise acquiring step in the temperature rise acquiring step: and injecting the clean water into the washing tank, wherein the clean water is the same as that in the clean water temperature rise obtaining step, heating the water in the washing tank at the same heating power in the same time, and simultaneously starting the washing pump to obtain a turbid water temperature rise value.
4. The control method of a dishwasher according to claim 3, further comprising a turbid water temperature rise correction step of adding clean tableware to the dishwasher, obtaining a temperature rise value when heating a certain amount of washing water under the same heating condition when spraying is not started and when spraying is started, obtaining a correction difference value between the two, and correcting the correction difference value by an end value of the temperature interval.
5. The method of claim 4, wherein in the turbid water temperature rise correction step, the main washing process with the lightest pollution and the main washing process with the heaviest pollution are called respectively to obtain the temperature difference value, and the corrected difference value is an average value of the temperature difference values.
6. The control method of a dishwasher according to claim 3, wherein in the washing parameter determining step, a functional relationship between the temperature interval and the washing parameter is determined and stored; and when the difference value between the clear water temperature rise value and the turbid water temperature rise value is obtained, the functional relation is adjusted, and the washing parameters are determined.
7. The method of claim 6, wherein the difference between the fresh water temperature rise and the turbid water temperature rise is positively correlated with the main washing time and the washing temperature of the next washing heating stage.
8. A control device of a dishwasher, comprising:
the water injection module (2) is used for adding water into a washing tank of the dish washing machine;
the heating module (3) is used for heating water in the washing tank;
the temperature detection module (4) is used for acquiring the temperature of water in the washing tank;
the spraying module (5) is used for spraying water to the tableware above the washing tank according to a washing program;
the comparison module (6) is used for acquiring a difference value between the clear water temperature rise value and the turbid water temperature rise value and determining a temperature interval corresponding to the difference value;
and the control module (1) is used for calling washing parameters corresponding to the temperature intervals according to the temperature intervals determined by the comparison module (6) and controlling the dishwasher to run according to the washing parameters.
9. The control device of a dishwasher according to claim 8, further comprising a turbid water temperature rise correction module for adding clean tableware into the dishwasher, obtaining a temperature rise value when heating a certain amount of washing water under the same heating condition when spraying is not started and when spraying is started, obtaining a correction difference value, and correcting the correction difference value by an end value of the temperature interval.
10. A dishwasher, characterized by comprising a control device of a dishwasher according to any one of claims 8-9.
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