CN106609436B - Control method of washing machine and washing machine - Google Patents
Control method of washing machine and washing machine Download PDFInfo
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- CN106609436B CN106609436B CN201510695709.2A CN201510695709A CN106609436B CN 106609436 B CN106609436 B CN 106609436B CN 201510695709 A CN201510695709 A CN 201510695709A CN 106609436 B CN106609436 B CN 106609436B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
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Abstract
The invention provides a control method of a washing machine and the washing machine, the method comprises: step A1: detecting the detergent; step A2: judging whether the detergent is a preset detergent or not; if yes, executing a water-saving washing program; if not, executing a common washing program; the water-saving washing program is used for performing flocculation treatment on the washing water after washing and/or rinsing is finished; the general washing process drains the water in the tub and introduces clean water after washing and/or rinsing is completed. The invention can automatically identify whether the detergent is the preset detergent or not, and judge whether to start the flocculation treatment according to the result, thus pertinently and automatically starting the flocculation treatment, avoiding the unnecessary addition of flocculating agent, leading the washing effect to reach the best, simultaneously, not needing a user to judge whether the flocculation function can be selected by himself when the washing machine is used every time, leading the washing program to be more automatic and intelligent.
Description
Technical Field
The invention relates to the field of washing machines, in particular to a control method of a washing machine and the washing machine.
Background
At present, a washing machine is popular among users due to the convenience in washing, and becomes one of necessary products of household appliances, and the washing machine brings convenience to the users and causes certain trouble to the users, namely the washing machine needs to consume a large amount of water in the washing process, so that water resource waste is caused to a certain degree.
In order to save water resources and improve the reusability of washing water, a washing machine with a flocculation water treatment program is provided in the prior art, namely, after a certain amount of detergent and flocculant are put into the washing water, the flocculation water treatment program is started, the washing water is flocculated and cleaned in a flocculation container arranged in the washing machine to generate clean water, and the clean water is discharged into a water containing barrel for reuse of the washing machine, so that the water is reused.
However, the concentration and the components of different detergents are different, so that the flocculating agent amount to be added is different, and the effect of the flocculation treatment is influenced.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a control method of a washing machine, which automatically identifies whether a detergent is a preset detergent or not, and judges whether flocculation treatment is started or not according to the result, so that the flocculation treatment is automatically started in a targeted manner, unnecessary flocculating agents are prevented from being put in, the washing effect is optimal, and meanwhile, a user does not need to judge whether a flocculation function can be selected by himself or herself when using the washing machine every time, so that the washing program is more automatic and intelligent.
Another object of the present invention is to provide a washing machine adopting the above control method.
The technical scheme adopted by the invention for solving the technical problems is as follows:
there is provided a control method of a washing machine, the method including:
step A1: detecting the detergent;
step A2: judging whether the detergent is a preset detergent or not; if yes, executing a water-saving washing program; if not, executing a common washing program;
the water-saving washing program is used for performing flocculation treatment on the washing water after washing and/or rinsing is finished;
the general washing process drains the water in the tub and introduces clean water after washing and/or rinsing is completed.
Further, when the water saving washing process is performed, it further includes:
judging whether the washing water after washing and/or rinsing is suitable for flocculation treatment;
if so, the washing water is flocculated, and if not, the water in the water tank is drained and clean water is introduced.
Further, the preset detergent is a detergent with a preset corresponding relation between the adding amount of the detergent and the adding amount of the flocculating agent.
Further, a chemical substance is added to the preset detergent, and the chemical substance can change the chemical characteristics of the detergent and can be recognized by the washing machine.
Further, the chemical substance is potassium iodide which can change the conductivity of the detergent and can be recognized by the washing machine;
the washing machine judges whether the detergent contains potassium iodide according to the conductivity of the detergent, so as to judge whether the detergent is a preset detergent.
Further, the conductivity of the detergent is related to the proportion of potassium iodide in the detergent and the magnitude of the input voltage value.
Further, the detergent containing a certain proportion of potassium iodide is electrified, and when the input voltage is continuously increased, a peak appears in a curve graph of the output voltage in a specific range corresponding to the input voltage;
the specific range relates to the ratio of potassium iodide in the detergent.
Further, the method for judging whether the detergent is a preset detergent comprises the following steps:
electrifying the detergent;
inputting sequentially increased input voltage signals at the input end of the circuit;
collecting an output voltage signal corresponding to the input voltage signal at the output end of the circuit;
judging whether a curve chart of the output voltage signal contains a wave crest or not;
if yes, the detergent is a preset detergent; if not, the detergent is not the preset detergent.
Further, the input voltage signals at least comprise Ui1, Ui2 and Ui3 which fall in a specific range and increase in sequence, Ui1 and Ui3 take two end values of the specific range, and the duration corresponding to each input voltage signal is T;
collecting corresponding output voltage signals at the end of the duration T of each input voltage signal, wherein the output voltage signals are Uo1, Uo2 and Uo3 in sequence;
if the voltage value of Uo2 is greater than the voltage values of Uo1 and Uo3, respectively, it is a preset detergent, otherwise it is not.
The invention also provides a washing machine adopting the control method.
The technical scheme provided by the specific implementation mode of the invention has the beneficial effects that:
the control method can identify the preset detergent, judge whether to execute the water-saving washing program according to the identification result, detect the cleanliness of the washing water when executing the water-saving washing program, judge whether to perform flocculation treatment and whether to perform secondary rinsing and tertiary washing according to the detection result, thereby enabling the washing effect to reach the best, saving the use of flocculating agent, intelligently performing flocculation treatment and rinsing treatment, simultaneously avoiding the need of judging whether to select the flocculation function by a user per se when the user uses the washing machine every time, and enabling the washing program to be more automatic and intelligent.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a control method of a washing machine according to the present invention;
FIG. 2 is a graph of the electrochemical properties of potassium iodide-containing detergents and potassium iodide-free detergents and water, as measured at an electrochemical workstation, according to the present invention;
FIG. 3 is a flowchart of a control method of another washing machine provided in the present invention;
fig. 4 is a flowchart of another control method of a washing machine according to the present invention.
Detailed Description
The flocculation function or flocculation in the flocculation treatment refers to that after a certain amount of flocculating agent is added into the washing water, suspended particles in the washing water are gathered and enlarged or form floccules, so that the coagulation of the particles is accelerated, and the solid and liquid are separated, so that the used water can be cleaned and reused.
As shown in fig. 1, the present invention provides a control method of a washing machine, the method including:
step 101: and detecting the detergent.
Specifically, the detergent storage box is provided with a liquid level detection device, and when the liquid level in the detergent storage box is detected to reach a preset liquid level, the detergent storage box is indicated to contain detergent. Preferably, when it is detected that there is no detergent in the detergent storage box, the user may also be alerted to the absence of detergent in the detergent storage box by displaying a corresponding message or sounding a corresponding alert tone on the display interface.
Preferably, in this step, the method for detecting the detergent may further comprise applying power to the insulated detergent storage box, wherein if the power is on, the detergent storage box is indicated to have the detergent therein, and if the power is not on, the detergent storage box is indicated to have no detergent therein.
Further, in this step, the detergent may be detected by detecting the weight of the detergent storage case, and if the preset weight is reached, it indicates that there is detergent, and if the preset weight is not reached, it indicates that there is no detergent.
Step 102: and judging whether the detergent is a preset detergent or not.
If yes, executing a water-saving washing program; if not, a general washing process is performed.
Wherein, the water-saving washing procedure refers to that after washing and/or rinsing is finished, the washing water is flocculated; the general washing process means that water in the tub is drained and clean water is introduced after washing and/or rinsing is completed.
The preset detergent is a detergent with preset corresponding relation between the input amount of the detergent and the input amount of the flocculating agent, and further, chemical substances are added into the preset detergent, can change the chemical characteristics of the detergent and can be recognized by the washing machine.
Preferably, the chemical substance is potassium iodide, which can change the conductivity of the detergent and can be recognized by the washing machine, and the washing machine judges whether the detergent contains potassium iodide according to the conductivity of the detergent, thereby judging whether the detergent is a preset detergent.
Since potassium iodide does not affect the degree of cleaning of the detergent, the conductivity of the detergent can be changed after a certain proportion of potassium iodide is added into the detergent, and the potassium iodide has a certain bactericidal effect, the addition of a certain proportion of potassium iodide into the detergent is a preferable way for marking a preset detergent.
Preferably, the proportion of potassium iodide in the detergent is between 0.05% and 0.2%, more preferably 0.1%.
Further, the conductivity of the detergent is related to the proportion of potassium iodide in the detergent and the magnitude of the input voltage value when the detergent is energized.
Fig. 2 shows the electrochemical properties of detergents with and without potassium iodide and water measured on an electrochemical workstation, the proportion of potassium iodide being 0.1%, the conductivity of the detergents with potassium iodide being significantly different from the conductivity of the detergents without potassium iodide when the applied voltage is continuously increased as the input voltage is increased. In FIG. 2, the output voltage signal is converted into a current signal, and when the input voltage is gradually increased at a rate of 0.1V/s, the conductivity of the detergent containing potassium iodide is shown by curve a, the conductivity of the blue moon detergent is shown by curve c, and the conductivity of water is shown by curve e; when the input voltage was gradually increased at a rate of 0.05V/s, the conductivity of the detergent containing potassium iodide was as shown in curve b, the conductivity of the blue moon detergent was as shown in curve d, and the conductivity of the water was as shown in curve e, and thus it was seen that the detergent containing only potassium iodide exhibited two distinct peaks between 1V and 2V.
In which the position where the peak appears is related to the ratio of potassium iodide in the detergent, and according to the results shown in fig. 2, when the ratio of potassium iodide is 0.1%, the more pronounced peak appears between 1.5V and 2V.
Therefore, according to the above characteristics, in order to identify a predetermined detergent, a certain proportion of potassium iodide may be added to the predetermined detergent and the detergent containing the certain proportion of potassium iodide may be powered on, and when the input voltage is increased, the output voltage curve shows a peak in a specific range corresponding to the input voltage, and the specific range is related to the proportion of potassium iodide in the detergent. As shown in fig. 3, the specific steps are as follows:
step a 1: and electrifying the detergent.
Specifically, the washing machine connects two electrodes in a circuit for electrifying the detergent, the two electrodes go deep into the detergent to be tested, and the washing machine is electrified after the circuit is connected.
Step a 2: sequentially increasing input voltage signals are input at the input end of the circuit.
Specifically, according to the conductivity of the detergent added with a certain proportion of potassium iodide: when the input voltage is continuously increased, the curve graph of the output voltage generates wave peaks in a specific range corresponding to the input voltage, so that the value range of the input voltage signal at least covers the specific range of the generated wave peaks.
Further, the input voltage signals at least comprise Ui1, Ui2 and Ui3 which fall within a specific range and increase in sequence, Ui1 and Ui3 take two end values of the specific range, and the duration time corresponding to each input voltage signal is T. Preferably, a reverse voltage Ui0 is input before Ui1 is input, because the electrode is oxidized after long-term use, data drift is generated, and the detection result is influenced, and the reverse voltage Ui0 is input to carry out pretreatment before the detergent is electrolyzed, and the electrode is cleaned, so that the continuous electrolysis process is ensured.
For example, according to the test results on the electrochemical workstation shown in fig. 2, a distinct peak appears between 1.5V and 2V, so that the reverse voltage Ui0, the input voltage signals Ui1, Ui2 and Ui3 are continuously input at the circuit input, these four levels being-2V, 1.5V, 1.8V, 2V, respectively, for durations of 3S, 2S, respectively.
Step a 3: an output voltage signal corresponding to the input voltage signal is collected at the output terminal of the circuit.
Specifically, at the end of the duration T of each input voltage signal, the corresponding output voltage signal is acquired, in turn Uo1, Uo2 and Uo3, respectively.
For example, when the input voltage signals are 1.5V, 1.8V and 2V, respectively, the corresponding Uo1, Uo2 and Uo3 are 1.52V, 2.04V and 1.52V when 2S ends are collected at the output end of the circuit in sequence.
Step a 4: and judging whether the curve chart of the output voltage signal contains a peak or not.
If yes, the washing machine indicates that the washing machine is the preset detergent, and a water-saving washing program is executed; if not, the washing machine indicates that the washing machine is not the preset detergent, and the ordinary washing program is executed.
Specifically, the washing machine compares the magnitude of two adjacent output voltage signals in sequence according to the sequence of collecting the output voltage signals, and when the change of three adjacent output voltage signals is detected to increase firstly and then decrease, the washing machine judges that the three adjacent output voltage signals contain wave peaks, and then judges that the three adjacent output voltage signals are the preset detergent.
Further, for the output voltage signals Uo1, Uo2 and Uo3, respectively, if the voltage value of Uo2 is greater than the voltage values of Uo1 and Uo3, it is a preset detergent, otherwise, it is not a preset detergent.
For example, Uo1, Uo2 and Uo3 are 1.52V, 2.04V, 1.52V, 2.04 > 1.52, respectively, thus Uo2 > Uo1 and Uo2 > Uo3, thus Uo2 is a peak, indicating a pre-set detergent.
After the detergent is judged to be the preset detergent, a water-saving washing program is executed, namely, when the washing machine finishes the washing step and/or the rinsing step, the washing water is flocculated.
Specifically, in the flocculation treatment, the washing machine automatically puts a certain amount of flocculant into a flocculation container arranged outside the water tub, so that the washing water enters the flocculation container through a water inlet of the flocculation container for purification, the purified water is discharged into the water tub again, and the washing machine performs subsequent steps such as rinsing and the like. The dosage of the flocculating agent corresponds to the dosage of the detergent, and the dosages of the flocculating agent automatically added into the washing machine are different aiming at the detergents with different dosages.
After the detergent is judged not to be the preset detergent, the current detergent is not suitable for flocculation treatment, and a common washing program needs to be executed, namely after the washing machine finishes a washing step and/or a rinsing step, water in the water containing barrel is directly drained, clean water is introduced, and the subsequent steps are executed.
Preferably, the course of the general washing program comprises: washing → draining → dewatering → water intake → rinsing → draining → dewatering → finishing, preferably, secondary rinsing, tertiary rinsing, etc. may be performed according to the washing requirement.
The control method can identify the preset detergent and judge whether the flocculation treatment is suitable according to the identification result, thus pertinently and automatically starting the flocculation treatment, avoiding the unnecessary addition of the flocculating agent and achieving the best washing effect, and simultaneously, users do not need to judge whether the flocculation function can be selected by themselves when using the washing machine every time, so that the washing program is more automatic and intelligent.
Example one
As shown in fig. 4, the present invention provides a control method of a washing machine, the main execution body of which is the washing machine, according to the above embodiment, when it is detected that a detergent is a preset detergent, a water-saving washing procedure needs to be executed, and when the washing water is particularly turbid, the flocculation treatment adversely affects the washing effect, so that when the water-saving washing procedure is executed, the cleanliness of the washing water needs to be detected, and whether the flocculation treatment is executed or not is determined according to the cleanliness of the washing water, the method comprising:
step 201: a washing step is performed.
Step 202: and judging whether the cleanliness detection value of the current washing water reaches a first preset threshold value.
If yes, go to step 203, if no, go to step 204.
Because sometimes the clothes washed are dirty, the water after washing is muddy, even if the effect is not good after flocculation treatment, the flocculant is wasted, and the washing effect is also influenced, so whether the washing water is suitable for flocculation treatment needs to be judged.
Specifically, a water cleanliness detection device is arranged on the wall of the washing tub, an infrared detection signal is emitted to the washing water in the washing tub after the washing machine finishes a washing step, and a reflected signal is received to obtain a cleanliness detection value of the current washing water, the washing machine judges whether the cleanliness detection value reaches a first preset threshold value, if so, the washing water is clean, and flocculation treatment can be carried out; if not, the washing water is too turbid, and the effect of the flocculant is poor.
Step 203: and (4) performing flocculation treatment.
Specifically, a certain amount of flocculant is automatically put into a flocculation container arranged outside the water bucket, the washing water enters the flocculation container through a water inlet of the flocculation container for purification, the purified water is discharged into the water bucket again, and the washing machine performs subsequent steps such as rinsing and the like.
Step 204: the water in the tub is drained and clean water is introduced.
Step 205: rinsing is performed.
Step 206: and judging whether the cleanliness detection value of the current washing water reaches a second preset threshold value.
If so, draining, dehydrating and finishing washing; if not, steps 202 to 206 are repeated.
For cleaner clothes or when the dosage of the used detergent is less, the washing water after rinsing is cleaner and does not need to be rinsed again; and when dirty clothes or used detergents are more, the washed washing water is still muddy, and secondary washing is needed, so that the cleanliness of the current washing water needs to be detected after the primary washing, whether the cleanliness detection value of the current washing water reaches a second preset threshold value is judged, if yes, the washing water is cleaner, secondary washing is not needed, and if not, the washing water is muddy and needs to be rinsed again. Preferably, the second preset threshold value represents a cleanliness level higher than that represented by the first preset threshold value.
Further, in this embodiment, if the cleanliness detection value of the washing water detected after the second rinsing does not reach the second preset threshold, the rinsing is performed three times, and step 202 to step 206 are repeatedly performed.
By utilizing the control method, when the water-saving washing program is executed, the cleanliness of the washing water is also detected, and whether flocculation treatment is carried out or not and whether secondary rinsing and tertiary washing are carried out or not are judged according to the detection result, so that the washing effect is optimal, the use of a flocculating agent is saved, the flocculation treatment and the rinsing treatment are intelligently carried out, and meanwhile, a user does not need to judge whether the flocculation function can be selected or not when using the washing machine every time, and the washing program is more automatic and intelligent.
Example two
The present embodiment provides a washing machine that can recognize a predetermined detergent to which a chemical substance is added, the chemical substance changing a chemical property of the detergent and being recognized by the washing machine, preferably, the chemical property being conductivity, the washing machine including:
and the detection circuit is used for electrolyzing the detergent. Specifically, the detection circuit is provided with two electrodes, the two electrodes are arranged in a detergent storage box of the washing machine, and when the detection circuit is electrified, a variable input voltage signal is introduced at the input end of the detection circuit to electrolyze the detergent, and a corresponding output voltage signal is collected at the output end of the detection circuit.
The water cleanliness detection device is arranged on the wall of the washing barrel and used for detecting the cleanliness of the washing water in the barrel to obtain the cleanliness detection value of the current washing water.
And a flocculation container disposed outside the tub, performing flocculation treatment on the washing water, and re-discharging the purified water into the tub.
The computer board of the washing machine and the control center of the washing machine control the operation of various washing programs and analyze the output voltage signal collected by the detection circuit to judge whether the current detergent is the preset detergent or not; and analyzing the cleanliness detection value detected by the water cleanliness detection device and judging whether flocculation treatment is carried out or whether secondary rinsing/tertiary rinsing is carried out or not.
The washing machine can identify the preset detergent, determine whether to execute a water-saving washing program, detect the cleanliness of the current washing water when executing the water-saving washing program, judge whether the flocculation treatment is suitable and whether secondary rinsing, tertiary rinsing and the like are needed according to the detection result, so that the washing effect is optimal, the use of a flocculating agent is saved, the flocculation treatment and the rinsing treatment are intelligently performed, and meanwhile, a user does not need to judge whether the flocculation function can be selected by himself every time the washing machine is used, so that the washing program is more automatic and intelligent. .
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A control method of a washing machine, characterized in that the method comprises:
step A1: detecting the detergent;
step A2: judging whether the detergent is a preset detergent or not, wherein the preset detergent is a detergent with a preset corresponding relation between the input amount of the detergent and the input amount of the flocculating agent; if yes, executing a water-saving washing program; if not, executing a common washing program;
the water-saving washing program is used for performing flocculation treatment on the washing water after washing and/or rinsing is finished;
the general washing process drains the water in the tub and introduces clean water after washing and/or rinsing is completed.
2. The control method of a washing machine according to claim 1, when performing the water-saving washing course, further comprising:
judging whether the washing water after washing and/or rinsing is suitable for flocculation treatment;
if so, the washing water is flocculated, and if not, the water in the water tank is drained and clean water is introduced.
3. The method as claimed in claim 1, wherein a chemical is added to the predetermined detergent, the chemical changing chemical properties of the detergent and being recognized by the washing machine.
4. The control method of a washing machine as claimed in claim 3, wherein the chemical is potassium iodide which changes conductivity of the detergent and can be recognized by the washing machine;
the washing machine judges whether the detergent contains potassium iodide according to the conductivity of the detergent, so as to judge whether the detergent is a preset detergent.
5. The control method of a washing machine as claimed in claim 4, wherein the conductivity of the detergent is related to the ratio of potassium iodide in the detergent and the magnitude of the input voltage value.
6. The control method of a washing machine according to claim 5, wherein the detergent containing a certain proportion of potassium iodide is electrified, and when the input voltage is increased, the curve graph of the output voltage has a peak within a specific range corresponding to the input voltage;
the specific range relates to the ratio of potassium iodide in the detergent.
7. The control method of a washing machine as claimed in claim 6, wherein the method of determining whether the detergent is a preset detergent comprises:
electrifying the detergent;
inputting sequentially increased input voltage signals at the input end of the circuit;
collecting an output voltage signal corresponding to the input voltage signal at the output end of the circuit;
judging whether a curve chart of the output voltage signal contains a wave crest or not;
if yes, the detergent is a preset detergent; if not, the detergent is not the preset detergent.
8. The control method of a washing machine as claimed in claim 7, wherein the input voltage signals include at least Ui1, Ui2 and Ui3 which fall within a specific range and increase in sequence, and Ui1 and Ui3 take two end values of the specific range, and each input voltage signal corresponds to a duration of T;
collecting corresponding output voltage signals at the end of the duration T of each input voltage signal, wherein the output voltage signals are Uo1, Uo2 and Uo3 in sequence;
if the voltage value of Uo2 is greater than the voltage values of Uo1 and Uo3, respectively, it is a preset detergent, otherwise it is not.
9. A washing machine employing the control method as set forth in any one of claims 1 to 8.
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| CN107217452B (en) * | 2017-07-21 | 2023-07-25 | 无锡和晶信息技术有限公司 | Automatic detergent delivery system and method |
| CN108950988A (en) * | 2018-08-28 | 2018-12-07 | 珠海格力电器股份有限公司 | A kind of control method of washing, device, storage medium and washing machine |
| CN114645408A (en) * | 2020-12-18 | 2022-06-21 | 青岛海尔洗衣机有限公司 | Washing and protecting additive feeding device and control method thereof |
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