CN112674675A - Self-cleaning method of cleaning machine - Google Patents
Self-cleaning method of cleaning machine Download PDFInfo
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- CN112674675A CN112674675A CN201910996239.1A CN201910996239A CN112674675A CN 112674675 A CN112674675 A CN 112674675A CN 201910996239 A CN201910996239 A CN 201910996239A CN 112674675 A CN112674675 A CN 112674675A
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Abstract
The invention relates to a self-cleaning method of a cleaning machine, which is characterized in that: after a self-cleaning signal is detected, whether the scale amount on the heating plate reaches the degree needing cleaning is detected, if so, an acidic cleaning agent is automatically added into the cleaning machine, and the cleaning machine is self-cleaned; if not, automatically adding alkaline cleaning agent into the cleaning machine to perform self-cleaning of the cleaning machine. According to the self-cleaning method of the cleaning machine, the corresponding cleaning strategy can be given on the basis of obtaining the scaling condition of the heating plate, and the condition that some users excessively clean the heating plate is avoided, so that the damage to the heating plate is reduced, and the service life of the heating plate is prolonged. And at the self-cleaning in-process, can add corresponding cleaner automatically, avoid the user independently to add wrong cleaner and influence the self-cleaning effect of cleaning machine, correspondingly can avoid the user mistake to think that the self-cleaning has been realized to the heating plate in fact and effective self-cleaning is not carried out and the heating plate scale deposit condition that leads to is too serious the condition.
Description
Technical Field
The invention relates to a self-cleaning method of a cleaning machine.
Background
When the cleaning machine such as a water tank dish-washing machine is used for a long time, oil stains can be accumulated on the wall of the tank, scale can be generated on the heating plate, and a user is required to carry out self-cleaning on the cleaning machine after the cleaning machine is used for a period of time. Can pile up the greasy dirt on the cell wall and can discover easily through observing, but the incrustation scale condition user on the heating plate can't be accurate judge. The invention discloses a scale detection method and liquid heating equipment in Chinese patent application with CN109406115A (application number 201811003058.6), wherein the disclosed method judges the scaling condition of an electric heating device according to the temperature of the electric heating device by detecting the temperature of the electric heating device. However, when the cleaning machine is used, the temperature of the heating plate is not fixed, and the water quality of the use area of the cleaning machine is different, so that a user cannot accurately know the accumulation degree of the scale on the heating plate.
Meanwhile, during cleaning, the acidic cleaning agent is mainly used for cleaning scale, and the alkaline cleaning agent is mainly used for cleaning oil stains on the wall of the water tank. In the prior art, a user needs to add cleaning agents manually, needs to learn the purposes of different cleaning agents and needs to add the cleaning agents accurately, and the purpose of self-cleaning of the cleaning machine cannot be achieved if the added cleaning agents are incorrect, so that the user experience is poor.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a self-cleaning method for a cleaning machine, which can automatically add a corresponding type of cleaning agent according to the specific situation of the cleaning machine and perform cleaning when a user selects a self-cleaning mode.
A second technical problem to be solved by the present invention is to provide a self-cleaning method of a cleaning machine capable of determining the scaling on a heating plate in view of the above-mentioned prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: a method of self-cleaning a cleaning machine, characterized by: after a self-cleaning signal is detected, whether the scale amount on the heating plate reaches the degree needing cleaning is detected, if so, an acidic cleaning agent is automatically added into the cleaning machine, and the cleaning machine is self-cleaned; if not, automatically adding alkaline cleaning agent into the cleaning machine to perform self-cleaning of the cleaning machine.
In order to remind a user of adding a cleaning agent conveniently and guarantee the cleaning effect, before cleaning by automatically adding the cleaning agent, the pH values of water bodies in the water paths for placing acidic cleaning agents and alkaline cleaning agents are detected;
judging whether the pH value PH _ A of the water body in the acidic cleaning agent containing waterway is less than or equal to 6, if so, automatically adding the acidic cleaning agent into the cleaning machine and carrying out self-cleaning work of the cleaning machine; if not, prompting the user to add the acidic cleaning agent at the acidic cleaning agent adding position;
judging whether the pH value PH _ B of the water body in the alkaline cleaning agent placing waterway is more than or equal to 8, if so, automatically adding the alkaline cleaning agent into the cleaning machine and cleaning; and if not, prompting the user to add the alkaline cleaning agent at the alkaline cleaning agent adding position.
In order to realize self-cleaning under the condition that a user cannot provide cleaning agent, after the user is prompted to add the cleaning agent, the time T for waiting for adding the cleaning agent is counted, and the T is compared with the set cleaning agent adding time threshold T0;
if a self-cleaning signal is detected within the time range that T is less than or equal to T0, a self-cleaning action is forbidden, the pH value of the water body in the acidic cleaning agent containing water path and the pH value of the water body in the alkaline cleaning agent containing water path are detected, and if the pH values of the water bodies in the acidic cleaning agent containing water path and the alkaline cleaning agent containing water path meet corresponding requirements, a corresponding cleaning machine is added into the cleaning machine and self-cleaning work of the cleaning machine is carried out;
if a self-cleaning signal is detected within the time range of T > T0, the cleaning machine is started to perform self-cleaning operation.
In order to achieve a better cleaning effect in a targeted manner, self-cleaning operation parameters of automatically adding an acidic cleaning agent to perform self-cleaning of the cleaning machine, automatically adding an alkaline cleaning agent to perform self-cleaning of the cleaning machine, and performing self-cleaning of the cleaning machine without a corresponding cleaning agent are different.
In order to avoid the pollution of the cleaning agent to the tableware, whether the articles to be cleaned are placed in the cleaning machine or not is detected after the self-cleaning signal is detected, and if the articles to be cleaned are placed in the cleaning machine, a user is prompted to take out the articles to be cleaned.
Preferably, it is detected whether the user takes out the articles to be washed within a set fetching time threshold T1, if so, the washing machine continues to operate, otherwise, the washing machine ends to operate.
The technical scheme adopted by the invention for solving the second technical problem is as follows: when the cleaning machine cleans the object to be cleaned each time, calculating and acquiring a current scale judgment value K, comparing the K with a stored scale judgment reference value K0, and further updating the state of the scale on a heating plate of the cleaning machine;
wherein K represents the rising temperature of water per unit volume per unit time; k0 represents the rising temperature of water per unit volume per unit time in the cleaning state of the heating pan;
if K is more than or equal to 0.8K0 and less than or equal to K0, judging that the scale on the heating plate of the cleaning machine is less;
if K is more than 0.4K0 and less than or equal to 0.8K0, judging that the scale on the heating plate of the cleaning machine is centered;
if K is less than 0.4K0, judging that the scale on the heating plate of the cleaning machine is more;
when the cleaning machine is used for self-cleaning, the self-cleaning work is carried out according to the state of water scales on the heating plate of the cleaning machine.
Preferably, the cleaning of the cleaning machine tank wall is performed when the amount of scale on the cleaning machine heating plate is small, and the self-cleaning of the heating plate is performed by selecting different self-cleaning parameters when the amount of scale on the cleaning machine heating plate is medium and the amount of scale on the cleaning machine heating plate is large.
Preferably, when the cleaning machine is used for the first time, calculating and acquiring a scale judgment reference value K0;
the calculation method of the scale judgment reference value K0 comprises the following steps: acquiring the water inlet volume V0 of the cleaning machine, acquiring the water temperature W0 of inlet water in the cleaning machine, acquiring the heating target temperature W1 of the inlet water in the current cleaning machine, acquiring the time T required for heating the inlet water in the cleaning machine from W0 to W1, and calculating a scale judgment reference value K0 and K0 to be (W1-W0)/T V0 according to V0, W0, W1 and T.
More humanized, under the condition that the cleaning machine is shut down or powered off in the self-cleaning process, the cleaning machine automatically continues to complete the self-cleaning work after being restarted.
Compared with the prior art, the invention has the advantages that: according to the self-cleaning method of the cleaning machine, the corresponding cleaning strategy can be given on the basis of obtaining the scaling condition of the heating plate, namely the heating plate can be cleaned under the condition that the scaling condition of the heating plate is more, the groove wall of the cleaning machine can be selected under the condition that the scaling condition of the heating plate is better, the condition that some users excessively clean the heating plate is avoided, the damage to the heating plate is reduced, and the service life of the heating plate is prolonged. And in the self-cleaning process of the cleaning machine, the corresponding cleaning agent can be automatically added, the self-cleaning effect of the cleaning machine is prevented from being influenced by the fact that the user independently adds the wrong cleaning agent, and accordingly the situation that the scaling condition of the heating plate is too serious due to the fact that the user mistakenly considers that the self-cleaning is realized on the heating plate but effective self-cleaning is not carried out can be avoided.
Drawings
FIG. 1 is a flow diagram of a method of self-cleaning a washer in accordance with an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the self-cleaning method of a cleaning machine in the present embodiment includes the steps of:
s1, a user can operate a self-cleaning button on the cleaning machine, and a control unit of the cleaning machine detects a self-cleaning signal;
if a self-cleaning signal is detected, proceed to S2;
s2, detecting whether articles to be cleaned are placed in the cleaning machine, wherein the cleaning agent is usually used in the self-cleaning process and can pollute the articles to be cleaned and influence the cleaning effect on the heating plate needing self-cleaning or the wall of the water tank of the cleaning machine;
if yes, prompting the user to take out the article to be cleaned and carrying out S3; if not, go to S4;
s3, detecting whether the user takes out the articles to be cleaned within the time range of the set article taking time threshold T1, if so, carrying out S4, otherwise, finishing the work of the cleaning machine; the fetching time threshold T1 can be set before leaving the factory, or can be set by a user after installation, and the detection method for whether the user takes out the articles to be cleaned in the cleaning machine can be detected by a gravity sensor or an infrared sensor and the like arranged on a placing rack in the cleaning machine;
s4, the control unit detects whether the scale amount on the heating plate reaches the degree of cleaning; because the heating efficiency is affected after the scale is formed on the heating plate, namely the heating speed of water is low under the condition of outputting larger power, the scale condition on the heating plate needs to be detected and whether the water needs to be cleaned or not is judged, and the heating plate is cleaned by using a cleaning agent in a transition way, so that the power consumption of a cleaning machine is increased on one hand, and the heating plate can be damaged to a certain extent on the other hand;
the method for detecting the scale amount on the heating plate comprises the following steps:
when the cleaning machine cleans the object to be cleaned each time, calculating and acquiring a current scale judgment value K, comparing the K with a stored scale judgment reference value K0, and further updating the state of the scale on a heating plate of the cleaning machine;
wherein K represents the rising temperature of water per unit volume per unit time; k0 represents the rising temperature of water per unit volume per unit time in the cleaning state of the heating pan; the heat dissipation power of the surface of the heating plate is positively correlated with the K value, when the K value is larger, the larger the heat dissipated by the surface of the heating plate in unit time is, and the dirty degree of the surface directly influences the heat dissipated by the surface of the heating plate in unit time, so that the existence of attachments on the surface of the heating plate can be known from the K value;
because the heating plates installed in the cleaning machines are different, and the water quality used in the areas where users are located is greatly different, in order to obtain a more accurate scale judgment reference value and accurately judge the cleaning machines used in the areas, when the cleaning machines are used for the first time, a scale judgment reference value K0 is obtained through calculation; acquiring a water inlet volume V0 of the cleaning machine, acquiring a water temperature W0 of inlet water in the cleaning machine, acquiring a heating target temperature W1 of the inlet water in the current cleaning machine, acquiring time T required for heating the inlet water in the cleaning machine from W0 to W1, and calculating a scale judgment reference value K0 according to V0, W0, W1 and T, wherein K0 is (W1-W0)/T V0; when the heating plate works, the output power of the heating plate keeps stable, and the scale condition on the heating plate of the cleaning machine can be judged according to the interval range to which K belongs;
if K is more than or equal to 0.8K0 and less than or equal to K0, judging that the scale on the heating plate of the cleaning machine is less;
if K is more than 0.4K0 and less than or equal to 0.8K0, judging that the scale on the heating plate of the cleaning machine is centered;
if K is less than 0.4K0, judging that the scale on the heating plate of the cleaning machine is more;
on the basis of acquiring the condition of water scale on the heating plate, cleaning parameters of the object to be cleaned can be correspondingly adjusted, for example, the heating temperature of the heating plate can be reduced, and meanwhile, the cleaning time is prolonged; of course, the cleaning machine can also automatically start a self-cleaning program according to the detected scale condition on the heating plate;
when the cleaning machine is used for self-cleaning, the self-cleaning work is carried out according to the state of water scale on the heating plate of the cleaning machine at present, specifically, the self-cleaning of the heating plate is not carried out under the condition that the water scale on the heating plate of the cleaning machine is less, and the cleaning of the wall of the cleaning machine groove is carried out, namely, the cleaning is carried out by selecting an alkaline cleaning agent; different self-cleaning parameters are selected for self-cleaning the heating plate under the conditions that the water scale on the heating plate of the cleaning machine is centered and the water scale on the heating plate of the cleaning machine is more, namely, parameters such as the number of water inlet channels, the heating temperature, the heating time, the water inlet quantity, the motor rotating speed and the like can be correspondingly adjusted on the basis of selecting an acidic cleaning agent for cleaning;
s5, if the heating plate of the cleaning machine needs to be cleaned, S6 is carried out; if it is judged that the cleaning of the heating plate of the cleaning machine is not necessary, S8 is performed;
in this embodiment, in order to facilitate automatic addition of the acidic cleaning agent and the alkaline cleaning agent, a three-way valve is disposed on a water inlet waterway of the cleaning machine, the cleaning agent adding waterway for adding the cleaning agent is connected to the three-way valve and divided into two branch waterways, a box body for placing the cleaning agent and allowing water to pass through is disposed on each branch waterway, an acidic cleaning sheet is placed in the box body of one branch waterway, an alkaline cleaning sheet is placed in the box body of the other branch waterway, after the water passes through the box body, the corresponding cleaning agent is generated, and the downstream of the two branch waterways is converged and connected with a water outlet end of the three-way valve; in addition, electromagnetic valves are respectively arranged on the two branch water paths, and the conduction or the closing of the two branch water paths is controlled by controlling the opening and the closing of the electromagnetic valves; in addition, a PH value detection sensor is arranged in the box body or at the downstream of the box body, the PH value of the generated cleaning agent is detected, and whether the acidic cleaning sheet and the alkaline cleaning sheet in the box body are used up or not can be judged through the detection of the PH value;
s6, detecting the pH value of the water body in the acidic cleaning agent placing waterway;
s7, judging whether the pH value PH _ A of the water body in which the acidic cleaning agent is placed is less than or equal to 6, if so, indicating that the amount of the acidic cleaning sheets meets the self-cleaning requirement, automatically adding the acidic cleaning agent into the cleaning machine and performing self-cleaning work of the cleaning machine; if not, indicating that the acidic cleaning sheet is basically used up and needs to be added, prompting a user to add an acidic cleaning agent at a corresponding acidic cleaning agent adding position and performing S10;
s8, detecting the pH value of the water body in the water path for placing the alkaline cleaning agent;
s9, judging whether the PH value PH _ B of the water body in the water path where the alkaline cleaning agent is placed is larger than or equal to 8, if so, indicating that the quantity of the alkaline cleaning sheets meets the self-cleaning requirement, and automatically adding the alkaline cleaning agent into the cleaning machine for cleaning; if not, indicating that the alkaline cleaning sheet is basically used up and needs to be added, prompting a user to add an alkaline cleaning agent at a corresponding alkaline cleaning agent adding position and performing S10;
s10, timing the time T for adding the cleaning agent, and comparing the time T with a set cleaning agent adding time threshold T0;
if a self-cleaning signal is detected within the time range that T is less than or equal to T0, a self-cleaning action is forbidden, the pH value of the water body in the acidic cleaning agent containing water path and the pH value of the water body in the alkaline cleaning agent containing water path are detected, and if the pH values of the water bodies in the acidic cleaning agent containing water path and the alkaline cleaning agent containing water path meet corresponding requirements, a corresponding cleaning machine is added into the cleaning machine and self-cleaning work of the cleaning machine is carried out;
if a self-cleaning signal is detected within the time range of T being more than T0, the cleaning machine is started to carry out self-cleaning work, at the moment, corresponding cleaning sheets are not stored in the home of a user, the cleaning sheets need to be purchased and added outside, and the cleaning machine needs self-cleaning very much, at the moment, a self-cleaning program is forced to be carried out, but self-cleaning parameters used in the self-cleaning process can be different from self-cleaning parameters used when the cleaning agent is contained, and after the self-cleaning process is carried out, although the effect when the cleaning agent is contained can not be achieved, certain effect can still be achieved;
and S11, finishing the self-cleaning work.
The self-cleaning working parameters of the automatic adding of the acid cleaning agent for the self-cleaning of the cleaning machine, the automatic adding of the alkaline cleaning agent for the self-cleaning of the cleaning machine and the self-cleaning of the cleaning machine under the condition of no corresponding cleaning agent are different. The self-cleaning working parameters comprise the number of water inlet channels, the heating strategy, the heating temperature, the heating time, the water inflow, the motor rotating speed and the like of each water inlet channel. The self-cleaning process not only uses the cleaning agent for cleaning, but also comprises a flushing process after cleaning, so that the residue of the cleaning agent in the cleaning machine is avoided.
In addition, under the condition that the cleaning machine is shut down or powered off in the self-cleaning process, after the cleaning machine is restarted, the cleaning machine automatically continues to complete the self-cleaning work.
Claims (10)
1. A method of self-cleaning a cleaning machine, characterized by: after a self-cleaning signal is detected, whether the scale amount on the heating plate reaches the degree needing cleaning is detected, if so, an acidic cleaning agent is automatically added into the cleaning machine, and the cleaning machine is self-cleaned; if not, automatically adding alkaline cleaning agent into the cleaning machine to perform self-cleaning of the cleaning machine.
2. A method of self-cleaning a cleaning machine according to claim 1, characterized in that: before cleaning by automatically adding a cleaning agent, detecting the pH value of a water body in which an acidic cleaning agent and an alkaline cleaning agent are placed;
judging whether the pH value PH _ A of the water body in the acidic cleaning agent containing waterway is less than or equal to 6, if so, automatically adding the acidic cleaning agent into the cleaning machine and carrying out self-cleaning work of the cleaning machine; if not, prompting the user to add the acidic cleaning agent at the acidic cleaning agent adding position;
judging whether the pH value PH _ B of the water body in the alkaline cleaning agent placing waterway is more than or equal to 8, if so, automatically adding the alkaline cleaning agent into the cleaning machine and cleaning; and if not, prompting the user to add the alkaline cleaning agent at the alkaline cleaning agent adding position.
3. A method of self-cleaning a cleaning machine according to claim 2, characterized in that: after prompting a user to add the cleaning agent, timing the time T for adding the cleaning agent, and comparing the time T with a set cleaning agent adding time threshold T0;
if a self-cleaning signal is detected within the time range that T is less than or equal to T0, a self-cleaning action is forbidden, the pH value of the water body in the acidic cleaning agent containing water path and the pH value of the water body in the alkaline cleaning agent containing water path are detected, and if the pH values of the water bodies in the acidic cleaning agent containing water path and the alkaline cleaning agent containing water path meet corresponding requirements, a corresponding cleaning machine is added into the cleaning machine and self-cleaning work of the cleaning machine is carried out;
if a self-cleaning signal is detected within the time range of T > T0, the cleaning machine is started to perform self-cleaning operation.
4. A method of self-cleaning a cleaning machine according to claim 3, characterized in that: the self-cleaning working parameters of the automatic adding of the acid cleaning agent for the self-cleaning of the cleaning machine, the automatic adding of the alkaline cleaning agent for the self-cleaning of the cleaning machine and the self-cleaning of the cleaning machine under the condition of no corresponding cleaning agent are different.
5. A method of self-cleaning a cleaning machine according to claim 2, characterized in that: and after the self-cleaning signal is detected, whether the articles to be cleaned are placed in the cleaning machine or not is detected, and if yes, a user is prompted to take out the articles to be cleaned.
6. A method of self-cleaning a cleaning machine according to claim 5, characterised in that: and detecting whether the user takes out the articles to be cleaned within a set article taking time threshold T1, if so, continuing the operation of the cleaning machine, otherwise, finishing the operation of the cleaning machine.
7. Method of self-cleaning of a cleaning machine according to any of claims 1 to 6, characterized in that: when the cleaning machine cleans the object to be cleaned each time, calculating and acquiring a current scale judgment value K, comparing the K with a stored scale judgment reference value K0, and further updating the state of the scale on a heating plate of the cleaning machine;
wherein K represents the rising temperature of water per unit volume per unit time; k0 represents the rising temperature of water per unit volume per unit time in the cleaning state of the heating pan;
if K is more than or equal to 0.8K0 and less than or equal to K0, judging that the scale on the heating plate of the cleaning machine is less;
if K is more than 0.4K0 and less than or equal to 0.8K0, judging that the scale on the heating plate of the cleaning machine is centered;
if K is less than 0.4K0, judging that the scale on the heating plate of the cleaning machine is more;
when the cleaning machine is used for self-cleaning, the self-cleaning work is carried out according to the state of water scales on the heating plate of the cleaning machine.
8. A method of self-cleaning a cleaning machine according to claim 7, characterised in that: the method comprises the steps of self-cleaning the wall of a cleaning machine groove under the condition that the scale on a cleaning machine heating plate is less, and self-cleaning the heating plate by selecting different self-cleaning parameters under the conditions that the scale on the cleaning machine heating plate is centered and the scale on the cleaning machine heating plate is more.
9. A method of self-cleaning a cleaning machine according to claim 7, characterised in that: when the cleaning machine is used for the first time, calculating and obtaining a water scale judgment reference value K0;
the calculation method of the scale judgment reference value K0 comprises the following steps: acquiring the water inlet volume V0 of the cleaning machine, acquiring the water temperature W0 of inlet water in the cleaning machine, acquiring the heating target temperature W1 of the inlet water in the current cleaning machine, acquiring the time T required for heating the inlet water in the cleaning machine from W0 to W1, and calculating a scale judgment reference value K0 and K0 to be (W1-W0)/T V0 according to V0, W0, W1 and T.
10. Method of self-cleaning of a cleaning machine according to any of claims 1 to 6, characterized in that: when the cleaning machine is shut down or powered off in the self-cleaning process, the cleaning machine automatically continues to complete the self-cleaning work after the cleaning machine is restarted.
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| CN114367510A (en) * | 2021-12-15 | 2022-04-19 | 珠海格力电器股份有限公司 | Control method of cleaning machine, cleaning machine and storage medium |
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