CN108018674A - Control method for washing machine - Google Patents

Abstract

The invention discloses a washing machine control method, which calculates the degree of dirtiness of the barrel caused by each washing and superimposes it, and when the superimposed value reaches or exceeds a critical value, a washing machine barrel cleaning reminder signal is sent out; Calculate or detect the dirtiness of the bucket, and superimpose each calculation result or detection result. When the superimposed value, that is, the total value of the dirtiness of the bucket, reaches or exceeds the threshold value of the dirtiness of the bucket preset by the washing machine, the washing machine will send out a cleaning signal, which means that the dirtiness of the bucket has reached the preset cleaning level. Remind the user to clean, so that the user can clean the bucket of the washing machine in time, prevent the growth of bacteria in the bucket, and maintain the cleanliness of the bucket of the washing machine; by detecting or calculating the dirtiness of the bucket for each washing, the total cleaning of the bucket can be improved. The accuracy of the dirtiness detection results can improve the cleaning effect of the washing machine tub.

Description

Washing machine control method

technical field

The invention relates to the technical field of household appliances, in particular to a washing machine control method for cleaning a washing machine bucket.

Background technique

The washing machine is a household appliance with water, and its internal environment is very humid. After a period of use, the detergent components in the water, the oily stains in the clothes, and the shedding dandruff, etc. adhere to the inner and outer barrel walls, and then moldy It turns black and breeds bacteria. If it is not cleaned in time, it may cause cross infection and cause various diseases. However, due to the structural problems of the washing machine, it is difficult for users to clean the washing machine by themselves, so the washing machine starts to set its own cleaning function; at the same time, the washing machine is not easy to disassemble, which makes it difficult for users to judge the degree of dirt in the washing tub. For the user's convenience, a detection structure for detecting the degree of dirtiness of the drum of the washing machine is further provided, and it is determined whether the user needs to be reminded to clean the drum of the washing machine according to the detection result.

Disclosed a kind of washing machine as Chinese patent document, described washing machine has bucket cleaning procedure, and this washing machine comprises: box body and washing tub; The unit is used to give an early warning of the dirtiness of the laundry tub; the sensor is used to detect the dirt information of the laundry tub; the controller is used to obtain the washing times of the washing machine and The interval time from the last washing of the tub, and preliminarily judge the dirtiness of the washing tub according to the number of washing times and the interval time, and control the warning indication unit to prompt, and when the warning indication unit is detected When triggered, the sensor is controlled to collect the dirt information of the laundry tub, and the tub cleaning prompt unit is controlled to prompt and/or execute the tub cleaning program according to the dirt information.

In the above-mentioned patent document, the dirty condition of the washing bucket is preliminarily judged by the number of washing times and the interval time between the last bucket cleaning, and the dirt information of the laundry bucket is further detected by the sensor, and it is judged whether to clean the bucket according to the dirty information; In this washing machine tub wall dirt detection and reminder method, although there are interval time interpretation and sensor detection for tub cleaning, there is no necessary relationship between the dirty degree of the tub and the interval time. Soiled laundry and heavily soiled laundry washed for a shorter period of time may cause the same degree of soiling to the wash tub. And the sensor can only detect the degree of dirtiness of the barrel at its setting point, its detection points are limited, and the reference value of the detection results is small.

In view of this, it is necessary to provide a more accurate and reliable washing machine control method for cleaning the washing machine tub, so as to overcome or alleviate the above-mentioned defects.

Contents of the invention

The object of the present invention is to provide a washing machine control method, which can improve the accuracy of the detection result of the washing machine's own dirtiness and improve the cleaning effect of the washing machine itself.

To achieve the above purpose, the present invention provides a washing machine control method, which calculates/detects the degree of dirtiness of the bucket caused by each washing and superimposes it, and when the superimposed value reaches or exceeds a critical value, a washing machine bucket cleaning reminder signal is sent.

It includes the following steps:

a. The degree of dirtiness of the bucket caused by each washing is set to k, where k=t*y, where t is the washing time, and y is the average turbidity of the washing water during the washing process;

b. The total dirtiness of the bucket within the selected time is set to K, K=k1+k2+k3+k4+...+kn, where k1 is the dirtiness of the bucket caused by the first washing within the selected time , k2 is the dirtiness of the bucket caused by the second washing within the selected time, k3 is the dirtiness of the bucket caused by the third washing within the selected time, and k4 is the dirtiness of the bucket caused by the fourth washing within the selected time The degree of dirtiness, kn is the degree of dirtiness of the barrel caused by the nth washing within the selected time;

c. K has a critical value Kmax. When K≥Kmax, the washing machine sends out a prompt signal to remind the user to clean the drum of the washing machine.

Preferably, if the washing temperature of the washing machine is adjustable, the degree of dirtiness of the bucket caused by each washing is k=t*y*x, where t is the washing time, and y is the average turbidity of the washing water during the washing process or is the turbidity correction coefficient corresponding to the turbidity of the washing water in the washing process, and x is the temperature correction coefficient corresponding to the average water temperature T in the washing process.

Preferably, the critical value Kmax includes multiple gradually increasing values of Kmax1, Kmax2, Kmax3, ..., KmaxN; when K≥Kmax1, the washing machine sends out the first prompt signal; when K≥Kmax2, the washing machine sends out the first prompt signal The second reminder signal; ...; When K≥KmaxN, the washing machine sends out the Nth reminder signal.

Preferably, in step c, set the total washing time tmax=t1+t2+t3+t4+...+tn, when the total washing time tmax is equal to or greater than the selected time, the washing machine sends a prompt signal to remind the user to The washing machine barrel is cleaned; wherein, t1 is the washing time of the first washing, t2 is the washing time of the second washing, t3 is the washing time of the third washing, t4 is the washing time of the fourth washing, ..., tn is the washing time of the nth washing.

Preferably, the washing time t is obtained by a user-selected washing mode.

Preferably, the average turbidity y or the turbidity correction coefficient y is obtained through detection by a turbidity sensor disposed in the tub of the washing machine or through detection of a turbidity sensor disposed in the drain valve of the washing machine.

Preferably, the temperature correction coefficient x is determined according to the influence of the average water temperature T of the washing process on the reproduction of bacteria.

Preferably, the total dirtiness K is sent to the mobile terminal or the display panel of the washing machine through the information output structure.

Preferably, the critical value Kmax is a value set by the user or a factory preset value of the washing machine.

Compared with the prior art, the present invention has the following advantages:

1. The washing machine control method of the present invention calculates or detects the degree of dirtiness of the bucket caused by each washing, and superimposes each calculation result or detection result, and within a selected time, when the superimposed superimposed value , that is, the total value of the degree of dirtiness of the barrel, when it reaches or exceeds the threshold value of the preset degree of dirtiness of the washing machine, the washing machine will send a cleaning signal, that is, the degree of dirtiness of the barrel has reached the preset level, and the user is reminded to clean , so that the user can clean the bucket of the washing machine in time, prevent the growth of bacteria in the bucket, and maintain the cleanliness of the bucket of the washing machine; by detecting or calculating the dirtiness of the bucket for each washing, the total dirtiness of the bucket can be improved The accuracy of the detection results is improved, thereby improving the cleaning effect of the washing machine tub.

2. The present invention detects or calculates the degree of dirt caused by each wash. During a single wash, the dirtier the laundry is, the greater the average turbidity of the washing water during the washing process. The greater the value of the degree of pollution; the cleaner the laundry, the smaller the average turbidity of the washing water during the washing process, and the smaller the value of the degree of dirt obtained by calculation or detection; that is, the degree of dirt of the bucket It is directly related to the degree of dirtiness of the laundry to be washed. The degree of dirtiness obtained through such calculation or detection has high accuracy, and it is judged whether the total degree of dirtiness K of the bucket reaches or exceeds the critical value Kmax. The user needs to be reminded to perform tub cleaning of the washing machine.

3. When the total washing time tmax of the present invention reaches or exceeds the selected time, even if the total value K of the degree of dirtiness of the bucket does not reach or exceed the critical value Kmax, the washing machine will also send out a prompt signal to remind the user to pay attention to the washing machine. The barrel is cleaned, so as to realize regular reminders, remind the user to clean the washing machine barrel regularly, and avoid the small amount of dirt remaining from washing for a long time to adhere to the washing machine barrel and cause bacteria to breed.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is a schematic flowchart of the washing machine control method according to the present invention.

Detailed ways

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

Referring to Fig. 1, the present invention provides a washing machine control method, which calculates the degree of dirtiness of the tub caused by each washing and superimposes it, and when the superimposed value reaches or exceeds a critical value, a washing machine tub cleaning reminder signal is sent.

In the present invention, the washing machine control method calculates or detects the degree of dirtiness of the bucket caused by each washing, and superimposes each calculation result or detection result, and within a selected time, when the superimposed superimposed value , that is, the total value of the degree of dirtiness of the barrel, when it reaches or exceeds the threshold value of the preset degree of dirtiness of the washing machine, the washing machine will send a cleaning signal, that is, the degree of dirtiness of the barrel has reached the preset level, and the user is reminded to clean , so that the user can clean the bucket of the washing machine in time, prevent the growth of bacteria in the bucket, and maintain the cleanliness of the bucket of the washing machine; at the same time, by detecting or calculating the dirtiness of the bucket for each washing, the total dirtiness of the bucket is improved. The accuracy of the pollution detection results can be improved, thereby improving the cleaning effect of the washing machine tub.

It includes the following steps:

a. The degree of dirtiness of the barrel caused by each washing is set to k, k=t*y, where t is the washing time, and y is the average turbidity of the washing water during the washing process or the turbidity of the washing water during the washing process Corresponding turbidity correction coefficient;

b. The total dirtiness of the bucket within the selected time is set to K, K=k1+k2+k3+k4+...+kn, where k1 is the dirtiness of the bucket caused by the first washing within the selected time , k2 is the dirtiness of the bucket caused by the second washing within the selected time, k3 is the dirtiness of the bucket caused by the third washing within the selected time, and k4 is the dirtiness of the bucket caused by the fourth washing within the selected time The degree of dirtiness, kn is the degree of dirtiness of the barrel caused by the nth washing within the selected time;

c. K has a critical value Kmax. When K≥Kmax, the washing machine sends out a prompt signal to remind the user to clean the drum of the washing machine.

As mentioned above, the present invention detects or calculates the degree of dirt caused by each wash. During a single wash, the dirtier the laundry, the greater the turbidity of the washing water during the washing process. The average turbidity y or The greater the turbidity correction coefficient y, and the longer the washing time t, the greater the degree of dirtiness of the bucket caused by it, and the greater the value of the degree of dirtiness obtained by calculation or detection; the cleaner the laundry, the better the washing time. The smaller the average value of the washing water in the process, the smaller the average turbidity y or the turbidity correction coefficient y. At the same time, the shorter the washing time t, the smaller the dirtiness of the bucket caused by it. The dirtyness obtained by calculation or detection The smaller the value of the degree of contamination; that is to say, the degree of dirtiness of the bucket is directly related to the degree of dirtiness of the clothes being washed. The degree of dirtiness obtained by such calculation or detection has higher accuracy, and by judging the degree of dirtiness of the bucket Whether the total dirtiness K reaches or exceeds the critical value Kmax is used to determine whether it is necessary to remind the user to clean the tub of the washing machine.

As a preferred embodiment of the present invention, if the washing temperature of the washing machine is adjustable, the degree of dirtiness of the bucket caused by each washing is k=t*y*x, where t is the washing time, and y is the washing water in the washing process The average turbidity of or is the turbidity correction coefficient corresponding to the turbidity of the washing water in the washing process, and x is the temperature correction coefficient corresponding to the average water temperature T of the washing process.

Specifically, the temperature correction coefficient x is determined according to the influence of the average water temperature T of the washing process on bacterial reproduction; because the washing temperature has a greater impact on the reproduction and production of bacteria, the temperature correction coefficient x is added when calculating the k value.

Further, the critical value Kmax includes multiple gradually increasing values of Kmax1, Kmax2, Kmax3, ..., KmaxN; when K≥Kmax1, the washing machine sends out the first prompt signal; when K≥Kmax2, the washing machine sends out the first prompt signal The second reminder signal; ...; when K≥KmaxN, the washing machine sends out the Nth reminder signal; therefore, when the user gives a signal to the washing machine and does not clean the washing machine, the total dirt degree K is further accumulated and calculated, and when K reaches the next When a critical value Kmax is reached, the washing machine sends out a reminder signal again. Wherein, the critical value Kmax is a value set by the user, or, the critical value Kmax is a factory preset value of the washing machine.

On the basis of the above, in step c of the present invention, set the total washing time tmax=t1+t2+t3+t4+...+tn, when the total washing time tmax is equal to or greater than the selected time, the washing machine sends a prompt signal , to remind the user to clean the drum of the washing machine; among them, t1 is the washing time of the first washing, t2 is the washing time of the second washing, t3 is the washing time of the third washing, and t4 is the washing time of the fourth washing ,..., tn is the washing time of the nth washing.

In the present invention, when the total washing time tmax reaches or exceeds the selected time, even if the total value K of the degree of dirtiness of the tub does not reach or exceed the critical value Kmax, the washing machine will send a prompt signal to remind the user to The washing machine barrel is cleaned, so as to realize regular reminders and remind users to clean the washing machine barrel regularly, so as to avoid a small amount of dirt remaining from washing for a long time adhering to the washing machine barrel and causing bacteria to grow; that is to say, the washing machine judging method can regularly remind users Carry out cleaning of the washing machine bucket, and its specific reminder period is determined by the selected time set by the user.

In the present invention, it is equivalent to taking the selected time set by the user as a period. If within this period, the total dirtiness K of the tub has reached or exceeded Kmax, the washing machine will send out a reminder signal, and the user will clean the tub of the washing machine after receiving the reminder. After cleaning, the cycle ends, and the next cycle starts after the bucket of the washing machine is cleaned, that is, the total degree of dirt K of the bucket returns to zero, and the selected time starts from zero and restarts the calculation of the value of dirt k of the bucket; if During this period, if the total dirt degree K of the bucket does not reach or exceed Kmax, then after the last washing in this period, the washing machine sends out a reminder signal, and the user cleans the washing machine bucket after receiving the reminder, and the cycle End, and enter the next cycle after the washing machine barrel is cleaned, that is, the total degree of dirt K of the barrel is reset to zero, and the selected time starts from zero and restarts the calculation of the value of the degree of dirt k of the barrel.

In addition, the washing time t is obtained by the washing mode selected by the user; according to the working principle of the washing machine, when the user selects the washing mode, the specific washing time in this washing mode has been determined, so the washing time t can be directly obtained by the washing mode selected by the user.

In the present invention, the average turbidity y or the turbidity correction coefficient y are obtained by detecting the turbidity sensor installed in the washing machine tub; Obtained by the turbidity sensor in the drain valve of the washing machine.

Preferably, the total degree of dirt K is sent to the mobile terminal or the display panel of the washing machine through the information output structure, so that the user can know the degree of dirtiness of the washing machine in time.

Specifically, referring to Fig. 1, when the user uses the washing machine, if the user selects the tub/drum cleaning program, the accumulated dirt value K within the time interval from the last cleaning is retrieved, and then the tub/drum cleaning program is determined according to the K value , the washing machine executes the drum/drum cleaning program, and the whole program ends after cleaning; if the user does not select the drum/drum cleaning program, if the accumulated dirt value K does not reach the preset value Kmax, the accumulation will continue. When the value K reaches the preset value Kmax, the washing machine will send out a reminder signal, that is, a reminder command for cleaning the tub/drum. If the user confirms the cleaning procedure of the tub/drum at this time, the washing machine will execute the cleaning procedure of the tub/drum, and the whole program will end after cleaning.

Apparently, the above-mentioned implementation manners are only examples for clear description, rather than limiting the implementation manners. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (10)

1. The washing machine control method, characterized in that: calculating/detecting the degree of dirtiness of the bucket caused by each washing and superimposing it, when the superimposed value reaches or exceeds a critical value, a washing machine bucket cleaning reminder signal is sent. 2. The washing machine control method according to claim 1, characterized in that it comprises the following steps: a. The degree of dirtiness of the barrel caused by each washing is set to k, k=t*y, where t is the washing time, and y is the average turbidity of the washing water during the washing process or the turbidity of the washing water during the washing process Corresponding turbidity correction coefficient; b. The total dirtiness of the bucket within the selected time is set to K, K=k1+k2+k3+k4+...+kn, where k1 is the dirtiness of the bucket caused by the first washing within the selected time , k2 is the dirtiness of the bucket caused by the second washing within the selected time, k3 is the dirtiness of the bucket caused by the third washing within the selected time, and k4 is the dirtiness of the bucket caused by the fourth washing within the selected time The degree of dirtiness, ..., kn is the degree of dirtiness of the barrel caused by the nth washing within the selected time; c. K has a critical value Kmax. When K≥Kmax, the washing machine sends out a prompt signal to remind the user to clean the drum of the washing machine. 3. The washing machine control method according to claim 2, characterized in that: if the washing temperature of the washing machine is adjustable, the degree of dirtiness of the bucket caused by each washing is k=t*y*x, where t is washing Time, y is the average turbidity of the washing water in the washing process or the turbidity correction coefficient corresponding to the turbidity of the washing water in the washing process, and x is the temperature correction coefficient corresponding to the average water temperature T in the washing process. 4. The washing machine control method according to claim 2 or 3, characterized in that: the critical value Kmax includes Kmax1, Kmax2, Kmax3, ..., KmaxN multiple gradually increasing values; when K≥Kmax1, The washing machine sends out the first prompt signal; when K≥Kmax2, the washing machine sends out the second prompt signal; ...; when K≥KmaxN, the washing machine sends out the Nth prompt signal. 5. The washing machine control method according to claim 2, characterized in that: in step c, set the total washing time tmax=t1+t2+t3+t4+...+tn, when the total washing time tmax is equal to or greater than At a selected time, the washing machine sends a prompt signal to remind the user to clean the washing machine tub; wherein, t1 is the washing time of the first washing, t2 is the washing time of the second washing, and t3 is the washing time of the third washing , t4 is the washing time of the fourth washing, ..., tn is the washing time of the nth washing. 6. The washing machine control method according to claim 2, characterized in that: the washing time t is obtained through the washing mode selected by the user. 7. The washing machine control method according to claim 2, characterized in that: the average turbidity y or the turbidity correction coefficient y is obtained by detecting the turbidity sensor arranged in the washing machine tub, or by the turbidity sensor arranged in the washing machine drain valve. Acquired by the degree sensor detection. 8. The washing machine control method according to claim 3, characterized in that: the temperature correction coefficient x is determined according to the influence of the average water temperature T in the washing process on bacterial reproduction. 9. The washing machine control method according to claim 2, characterized in that: the total dirtiness K is sent to the mobile terminal or the display panel of the washing machine through the information output structure. 10. The washing machine control method according to claim 2, characterized in that: the critical value Kmax is a value set by the user or a factory preset value of the washing machine.