CN107177954B - Washing control method and washing machine - Google Patents
Washing control method and washing machine Download PDFInfo
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- CN107177954B CN107177954B CN201610133966.1A CN201610133966A CN107177954B CN 107177954 B CN107177954 B CN 107177954B CN 201610133966 A CN201610133966 A CN 201610133966A CN 107177954 B CN107177954 B CN 107177954B
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- 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 washing control method and a washing machine, which determine the flow time of the external circulation of washing water in an outer barrel according to the dirt turbidity of the washing water, and solve the problems of poor cleaning effect and low washing efficiency caused by the fact that dirt components stripped from the washed clothes are attached to the clothes again in the process that the circulation device sucks the washing water from the bottom of the barrel to spray the washing water on the clothes when the dirt degree of the clothes is higher.
Description
Technical Field
The invention relates to the technical field of clothes washing, in particular to a clothes washing control method and a washing machine.
Background
With the improvement of living standard of people, a washing machine is one of main household appliances of daily life, the washing process of the washing machine mainly comprises a washing stage, a rinsing stage and a spin-drying stage, the washing machine enters water and detergent to wash clothes in the washing stage, after the washing stage, in order to rinse stains and residual detergent, more water needs to be fed or more rinsing times need to be carried out to rinse the clothes, a large amount of water resources are consumed, how to save water, save detergent and improve cleaning performance while cleaning the clothes is one of the focuses of the attention of consumers.
In the existing washing machine, taking a rotary drum as an example, after clothes to be washed are put into the washing machine, a washing program is started, most of washing control methods are firstly weighing, water is fed after weighing, an inner drum rotates at a low speed to moisten the clothes after water is fed, and then beating washing is carried out in a state that the clothes are not attached to the inner drum. In order to realize the purposes of scientific washing and water saving, the prior art uniformly soaks the washing powder dissolving water into the washings to improve the cleaning rate and uniformity of the washings. Chinese patent application No. CN200910249843.4 discloses a control method for washing machine to dissolve washing powder by feeding water, and a washing machine thereof, wherein washing powder is dissolved by washing in a washing powder box, the washing powder is fully dissolved by mixing water, then the washing powder dissolving water is uniformly soaked into the washings by means of internal circulation spraying and stirring, and then the water is fed to a set water level for washing.
However, when the degree of contamination of the laundry is high, an ideal washing effect cannot be obtained with the current detergent supply amount and the set washing time. In this case, a treatment method of increasing the amount of detergent to be added is often used to ensure the cleaning effect. Chinese patent application No. CN200910009282.0 discloses a water inlet control method for a full-automatic washing machine, which comprises controlling an inner tub to rotate at a low speed for a certain time, simultaneously opening an inner circulation system to pump the washing liquid at the bottom of the tub to the upper side, spraying the washing liquid on the clothes, closing the inner circulation system, and rotating the inner tub at a high speed; the invention makes the washing powder solution fully permeate into all clothes by several internal circulations and controlling the inner barrel to rotate and throw cloth at different rotating speeds, thereby prolonging the action time of the washing powder. But has problems that: in the washing process, the inner drum rotates at a low speed to moisten the clothes, and the circulating device sucks the washing liquid from the bottom of the inner drum to spray the washing liquid on the clothes, so that the washing performance is improved, but dirty components stripped from the washed clothes enter the washing liquid and adhere to the clothes again in the washing water external circulation process, and the washing effect cannot be ensured.
The present invention has been made in view of this situation.
Disclosure of Invention
The present invention provides a laundry control method and a laundry machine, which solves the problems of poor washing effect and low laundry efficiency caused by the dirt components stripped from the laundry being attached to the laundry again in the process that the circulation device sucks the washing water from the drum bottom to spray on the laundry when the dirt degree of the laundry is high.
In order to solve the technical problems, the invention adopts the technical scheme that:
a washing control method is provided for determining a flow time of an external circulation of washing water in an outer tub according to a turbidity of the washing water.
Furthermore, different ranges of the dirt degree of the washing water are preset, the corresponding range of the dirt degree is judged according to the detected dirt degree of the washing water, and different flowing time of the external circulation of the washing water is preset corresponding to each range of the dirt degree.
Further, the degree of contamination of the washing water is inversely proportional to the flow time of the washing water outside circulation, and the higher the degree of contamination of the washing water, the shorter the flow time of the washing water outside circulation.
Further, the turbidity of the washing water is inversely proportional to a ratio of the on time to the off time of the external circulation of the washing water, and the higher the turbidity of the washing water is, the smaller the ratio of the on time to the off time of the external circulation of the washing water is.
Further, the weight of the laundry is detected, a washing water level and/or a washing water amount are preset according to the weight of the laundry, and after the washing water is fed to the preset washing water level and/or the washing water amount, the inner tub is rotated and the washing water external circulation is started.
And further, detecting the sewage turbidity of the washing water after starting the external circulation of the washing water for a preset time.
Further, the weight of the laundry is detected, an initial water level and/or an initial water amount are preset according to the weight of the laundry, after the laundry water is fed to the preset initial water level and/or the initial water amount for the first time, the inner tub rotates and detects the dirt degree of the laundry water, and after the laundry water corresponding to the dirt degree is fed to the final water level and/or the final laundry water amount for the second time, the external circulation of the laundry water is started.
Further, the rotation-stop ratio of the circulation pump of the washing machine is changed at a preset time interval during the washing process, and the rotation-stop ratio is a preset value and is related to the detected dirt degree of the washing water.
Further, in the whole washing process, the circulating pump of the washing machine is controlled to work at different rotation-stop ratios, wherein the rotation-stop ratios are preset values and are related to the detected dirt degree of the washing water.
Further, determining the flow time of the external circulation of the washing water in the outer tub according to the turbidity of the washing water specifically includes:
determining the flow time of the external circulation of the washing water in the outer tub before detecting the turbidity of the washing water, and expressing the rotation-stop ratio of the circulating pump as K0;
after the turbidity of the washing water is detected,
when a0> a1 is satisfied, determining a flow time of an outer circulation of wash water in the outer tub as K1 with a circulation pump turn-off ratio;
when A2 ≦ A0 ≦ A1 is satisfied, determining a flow time of the external circulation of the washing water in the outer tub expressed as a circulation pump turn-off ratio K2;
when a0< a2 is satisfied, determining a flow time of an outer circulation of wash water in the outer tub as K0 with a circulation pump turn-off ratio;
wherein a1 and a2 are the first and second turbidity values, a0 is the detected turbidity value, a2< a 1; k1 and K2 are the first circulating pump stop/start ratio and the second circulating pump stop/start ratio, K0 is the standard circulating pump stop/start ratio, and K1< K2< K0.
A washing machine adopting the washing control method of any one of the above items.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the invention adopts a novel washing control method, the washing water containing the washing liquid is sucked from the bottom of the drum to be sprayed on the clothes through the external circulation of the washing water, and the washing powder dissolving water is uniformly sprayed through the external circulation and the stirring of the inner drum, so that the washing water containing the washing liquid can be favorably soaked into the clothes to be washed.
Furthermore, the method for controlling the clothes washing is characterized in that different ranges of the turbidity of the washing water are preset, the corresponding ranges of the turbidity are judged according to the detected turbidity of the washing water, different flowing times of the external circulation of the washing water are preset corresponding to the ranges of the turbidity, and the flowing time of the external circulation of the washing water is shorter as the turbidity of the washing water is higher. By shortening the flowing time of the external circulation of the washing water, the problem that the washing water containing more dirt is sprayed on the clothes again to cause the color change of the clothes and the like is avoided, and then the cleaning effect is improved, and the washing efficiency is improved.
Furthermore, the laundry control method provided by the invention can start a lower rotation-stop ratio of the circulating pump of the washing machine at any time in the whole washing process and before the laundry is finished, and also can start a lower rotation-stop ratio of the circulating pump of the washing machine at a preset time period in the washing process, for example, 5 minutes before the laundry is finished, so that in most time periods in the washing process, the proper rotation-stop ratio of the circulating pump is kept, the washing powder dissolved water is uniformly and fully soaked into the laundry, in the last time period in the washing process, the dirt substances in the washing water are the most, and by shortening the flowing time of the external circulation of the washing water, the washing water containing more dirt is prevented from being sprayed onto the laundry again, the washing effect is further improved, and the washing efficiency is further improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a flowchart of a laundry control method according to a second embodiment of the present invention;
fig. 2 is a flowchart of a laundry control method according to a third embodiment of the present invention;
fig. 3 is a flowchart of a laundry control method according to a fifth embodiment of the present invention;
fig. 4 is a flowchart of a laundry control method according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
The invention adopts a novel washing control method, and the washing machine (not shown) comprises a shell, an outer cylinder, an inner cylinder, a water quantity detection part, a circulating water path, a circulating pump, and a dirt detection part arranged in the circulating water path and composed of a turbidity sensor. Taking a drum washing machine with a rated washing capacity of 8kg as an example, different washing water inlet gears are preset according to different weights of loaded clothes, for example, the washing water inlet gear is divided into 4 gears, the weight of the clothes is 0-2kg to 1 gear, 2-4kg to 2 gears, 4-6kg to 3 gears, and 6-8kg to 4 gears, and the different washing water inlet gears correspond to different washing water inlet levels, namely water inlet amounts. The level of washing water at level 1 is 20L, the level of washing water at level 2 is 25L, the level of washing water at level 3 is 35L, and the level of washing water at level 4 is 40L.
A user puts clothes into the washing machine, puts detergent in the washing machine, starts a washing program, and then weighs the clothes to determine a washing water inlet gear corresponding to the current weight of the clothes. The weighing can be judged by the change of the current value in the process of accelerating the inner cylinder to rotate to a certain rotating speed and reducing the rotating speed to zero from the certain rotating speed, and can be determined by other related parameters of the motor.
Taking the 3-gear as an example, when the laundry amount is found to be 3-gear, the water inlet valve is opened to start water inlet to the set water level, i.e., 35L. Meanwhile, in the process of water inlet, the circulating pump is started, the washing water containing the washing liquid at the bottom of the drum is pumped to the upper end of the drum to be sprayed on the clothes through the external circulation of the washing water, so that the uniform dissolution of the washing agent and the wetting of the clothes are accelerated, and the washing agent is soaked into the washed clothes.
After reaching the set washing water level, stopping water inflow, and rotating the inner barrel at low speed to stir and wash the clothes. The rotation speed of the inner cylinder can be set to be about 40-50rpm, and the beating and washing can be carried out with the maximum effect. The rotation direction of the inner tub can be periodically switched. At this time, the circulation pump is set to on for 30 seconds and off for 30 seconds. Preventing the circulating pump from continuously operating to cause excessive foam of the washing water.
Further, when the degree of contamination of the laundry is high, the contamination components and the laundry dyes peeled off from the laundry with the agitation of the inner tub enter the washing liquid, and the washing water containing the washing liquid, the contamination components and the laundry dyes is drawn up from the bottom of the inner tub to be sprayed on the laundry and attached to the laundry again with the start of the external circulation of the washing water, which not only reduces the washing effect, but also causes the problems of discoloration of the laundry, etc.
In order to solve the problems, the invention adopts a novel washing control method, detects and judges the turbidity of the washing water, determines the flow time of the external circulation of the washing water in the outer barrel according to the turbidity of the washing water, and changes the rotation-stop ratio of the circulating pump according to the turbidity of the washing water in the whole washing process, wherein the higher the dirt degree of the washing water is, the smaller the rotation-stop ratio of the circulating pump is.
Different dirty degree ranges of the washing water are preset in the clothes washing control method, the corresponding dirty degree range is judged according to the detected dirty degree of the washing water, different flowing time of external circulation of the washing water is preset corresponding to each dirty degree range, and the flowing time of the external circulation of the washing water is shorter as the dirty degree of the washing water is higher. By shortening the flowing time of the external circulation of the washing water, the problem that the washing water containing more dirt is sprayed on the clothes again to cause the color change of the clothes and the like is avoided, and then the cleaning effect is improved, and the washing efficiency is improved.
Further, the dirt components including the laundry dye stripped from the laundry during the washing process are gradually introduced into the washing liquid along with the agitation of the drum, and the more the dirt components stripped from the laundry are introduced into the washing liquid during the last period of the washing process.
The washing control method provided by the invention can start the circulating pump of the washing machine at a preset time interval in the washing process, correspondingly start the flow time of the external circulation of the washing water according to the detected and judged dirt degree of the washing water, keep the proper rotation-stop ratio of the circulating pump in most time intervals of the washing process, ensure that the washing powder dissolved water is uniform and fully soaked into the washed clothes through the proper flow time of the external circulation of the washing water, and prevent the washing water containing more dirt from being sprayed onto the clothes again through shortening the flow time of the external circulation of the washing water in the last time interval of the washing process, thereby further improving the cleaning effect and further improving the washing efficiency.
Example one
In the laundry control method provided by the embodiment, the dirt on the laundry is removed by the rotary beating action of the inner drum and the permeation of the circulating water to the laundry after the circulating pump is started. At this time, the circulation pump may be set to on for 30 seconds and off for 30 seconds, for example. After a predetermined time T1, if T1 is 2 minutes, the turbidity of the washing water is detected by outputting the result of the detection by the dirt detecting portion. It should be noted that the preset time T1 can be adjusted and set according to specific situations.
Further, determining the flow time of the external circulation of the washing water in the outer tub according to the turbidity of the washing water specifically includes:
before detecting the turbidity degree of the washing water, determining the flowing time of the external circulation of the washing water in the outer barrel as K0 by using a circulating pump rotation-stop ratio, and stopping for 30 seconds if the circulating pump rotation-stop ratio K0 is on for 30 seconds;
after the turbidity of the washing water is detected, the turbidity value detected by the dirt detection part is represented by A0, different ranges of the turbidity of the washing water are preset, the corresponding turbidity range is judged according to the detected turbidity of the washing water, different flowing time of external circulation of the washing water is preset corresponding to each turbidity range, the flowing time of the external circulation of the washing water is represented by a circulating pump rotation-stop ratio, the circulating pump rotation-stop ratio is represented by K, and the turbidity is represented by A.
For example, a1 and a2 are preset as a first pollution value and a second pollution value, wherein a2 is less than a 1; k1 and K2 are the first circulating pump stop/start ratio and the second circulating pump stop/start ratio, K0 is the standard circulating pump stop/start ratio, and K1< K2< K0.
When A0> A1 is satisfied, the detected dirt degree is larger than a set first dirt degree value A1, the dirt amount of the washing water is judged to be large at the moment, the flowing time of the washing water external circulation in the outer barrel is determined to be represented by a circulating pump rotating and stopping ratio K1, for example, the rotating and stopping ratio of the circulating pump is changed from 30 seconds on and 30 seconds off to 10 seconds on and 50 seconds off;
when A2 ≦ A0 ≦ A1 is satisfied, it is determined that the wash water is in a middle level of the soil amount at this time, and it is determined that the flow time of the external circulation of the wash water in the outer tub is represented as K2 with a circulation pump stop ratio, for example, the stop ratio of the circulation pump is changed from 30 seconds on stop for 30 seconds to 20 seconds on stop for 40 seconds;
when A0< A2 is satisfied, the washing water is judged to be less dirty at this time, and the flow time of the washing water in the outer tub is determined to be K0 as the circulation pump stop ratio, and the stop ratio of the circulation pump is still on for 30 seconds and off for 30 seconds.
The preset first and second fouling values a1 and a2, the preset fouling range, and the circulation pump rotation/stop ratios K0, K1, and K2 may be determined according to actual test conditions.
Example two
As shown in fig. 1, the laundry control method provided in this embodiment includes the steps of:
step S101, putting detergent, weighing clothes, and judging a corresponding washing water inlet gear; after the clothes are put into the washing barrel before water is fed, the washing barrel rotates for a period of time, the weight of the current clothes is determined through relevant parameters of the motor, and the initial water level is preset according to the weight of the clothes.
Step S102, water is fed and the water level is detected; the water level sensor can be a traditional external water level sensor or a built-in water level sensor, and the sensor can be an inductive water level sensor, a direct output voltage water level sensor or a direct output frequency water level sensor.
Step S103, stopping water inflow when the preset water level value is reached;
step S104, stirring and timing; the stirring time set here can be adjusted according to the particular test.
Step S105, the circulation pump is turned on, for example, the circulation pump is turned on for 30S and turned off for 30S.
Step S106, after stirring for a set time T1, detecting the turbidity of the sewage; the detected dirt turbidity can be detected by a dirt detecting part arranged in the washing circulation water channel, and the dirt detecting part can be composed of a turbidity sensor.
Step S107, determining the flowing time of the external circulation of the washing water in the outer barrel according to the turbidity of the washing water, comprising:
before detecting the turbidity degree of the washing water, determining the flowing time of the external circulation of the washing water in the outer barrel as K0 by using a circulating pump rotation-stop ratio, and stopping for 30 seconds if the circulating pump rotation-stop ratio K0 is on for 30 seconds;
after the turbidity of the washing water is detected, the turbidity value detected by the dirt detection part is represented by A0, different ranges of the turbidity of the washing water are preset, the corresponding turbidity range is judged according to the detected turbidity of the washing water, different flowing time of external circulation of the washing water is preset corresponding to each turbidity range, the flowing time of the external circulation of the washing water is represented by a circulating pump rotation-stop ratio, the circulating pump rotation-stop ratio is represented by K, and the turbidity is represented by A.
For example, a1 and a2 are preset as a first pollution value and a second pollution value, wherein a2 is less than a 1; k1 and K2 are the first circulating pump stop/start ratio and the second circulating pump stop/start ratio, K0 is the standard circulating pump stop/start ratio, and K1< K2< K0.
When A0> A1 is satisfied, the detected dirt degree is larger than a set first dirt degree value A1, the dirt amount of the washing water is judged to be large at the moment, the flowing time of the washing water external circulation in the outer barrel is determined to be represented by a circulating pump rotating and stopping ratio K1, for example, the rotating and stopping ratio of the circulating pump is changed from 30 seconds on and 30 seconds off to 10 seconds on and 50 seconds off;
when A2 ≦ A0 ≦ A1 is satisfied, it is determined that the wash water is in a middle level of the soil amount at this time, and it is determined that the flow time of the external circulation of the wash water in the outer tub is represented as K2 with a circulation pump stop ratio, for example, the stop ratio of the circulation pump is changed from 30 seconds on stop for 30 seconds to 20 seconds on stop for 40 seconds;
when A0< A2 is satisfied, the washing water is judged to be less dirty at this time, and the flow time of the washing water in the outer tub is determined to be K0 as the circulation pump stop ratio, and the stop ratio of the circulation pump is still on for 30 seconds and off for 30 seconds.
The preset first and second fouling values a1 and a2, the preset fouling range, and the circulation pump rotation/stop ratios K0, K1, and K2 may be determined according to actual test conditions.
Step S108, washing is carried out until the washing is finished.
EXAMPLE III
As shown in fig. 2, the method for controlling laundry provided in this embodiment reduces the rotation/stop ratio of the circulation pump in a preset time period before the end of washing, and enables the lower rotation/stop ratio of the circulation pump of the laundry machine in the preset time period in the washing process, for example, 5 minutes before the end of washing, so that the proper rotation/stop ratio of the circulation pump is maintained in most of the time period of the washing process, so that the washing powder dissolving water is uniformly and fully soaked into the laundry, and in the last time period of the washing process, the dirt in the washing water is the most, and the washing water containing more dirt is prevented from being sprayed onto the laundry again by shortening the flow time of the external circulation of the washing water, thereby further improving the washing effect, and includes the steps of:
step S101, putting detergent, weighing clothes, and judging a corresponding washing water inlet gear; after the clothes are put into the washing barrel before water is fed, the washing barrel rotates for a period of time, the weight of the current clothes is determined through relevant parameters of the motor, and the initial water level is preset according to the weight of the clothes.
Step S102, water is fed and the water level is detected; the water level sensor can be a traditional external water level sensor or a built-in water level sensor, and the sensor can be an inductive water level sensor, a direct output voltage water level sensor or a direct output frequency water level sensor.
Step S103, stopping water inflow when the preset water level value is reached;
step S104, stirring and timing; the stirring time set here can be adjusted according to the particular test.
Step S105, the circulation pump is turned on, for example, the circulation pump is turned on for 30S and turned off for 30S.
Step S106, after stirring for a set time T1, detecting the turbidity of the sewage; the detected dirt turbidity can be detected by a dirt detecting part arranged in the washing circulation water channel, and the dirt detecting part can be composed of a turbidity sensor.
Step S107, determining the flowing time of the external circulation of the washing water in the outer barrel according to the turbidity of the washing water, and reducing the rotation-stop ratio of the circulating pump within a preset time period before the washing is finished, or reducing the rotation-stop ratio of the circulating pump within a preset time period before the washing is finished, comprises the following steps:
before detecting the turbidity degree of the washing water, determining the flowing time of the external circulation of the washing water in the outer barrel as K0 by using a circulating pump rotation-stop ratio, and stopping for 30 seconds if the circulating pump rotation-stop ratio K0 is on for 30 seconds;
after the turbidity of the washing water is detected, the turbidity value detected by the dirt detection part is represented by A0, different ranges of the turbidity of the washing water are preset, the corresponding turbidity range is judged according to the detected turbidity of the washing water, different flowing time of external circulation of the washing water is preset corresponding to each turbidity range, the flowing time of the external circulation of the washing water is represented by a circulating pump rotation-stop ratio, the circulating pump rotation-stop ratio is represented by K, and the turbidity is represented by A.
For example, a1 and a2 are preset as a first pollution value and a second pollution value, wherein a2 is less than a 1; k1 and K2 are the first circulating pump stop/start ratio and the second circulating pump stop/start ratio, K0 is the standard circulating pump stop/start ratio, and K1< K2< K0.
When A0> A1 is met, the detected dirt degree is larger than a set first dirt degree value A1, the washing water is judged to be more dirty, whether the execution time of the washing program reaches a preset time T2 is further judged, if yes, the flowing time of the external circulation of the washing water in the outer barrel is determined to be K1 by using a circulating pump rotation-stop ratio, for example, the rotation-stop ratio of the circulating pump is changed from 30 seconds on for 30 seconds to 10 seconds on for 50 seconds before the washing program is finished;
when A2 is more than or equal to A0 is more than or equal to A1, the washing water is judged to be in a dirty amount at the moment, whether the time for executing the washing program reaches a preset time T2 is further judged, if yes, the flowing time of the external circulation of the washing water in the outer barrel is determined to be represented as K2 by using a circulating pump turning-off ratio, for example, the turning-off ratio of the circulating pump is changed from 30 seconds on and 30 seconds off to 20 seconds on and 40 seconds off;
when A0< A2 is satisfied, the washing water is judged to be less dirty at this time, and the flow time of the washing water in the outer tub is determined to be K0 as the circulation pump stop ratio, and the stop ratio of the circulation pump is still on for 30 seconds and off for 30 seconds.
The preset first and second fouling values a1 and a2, the preset fouling range, and the circulation pump rotation/stop ratios K0, K1, and K2 may be determined according to actual test conditions.
Step S108, washing is carried out until the washing is finished.
Example four
The present embodiment is optimized based on the above embodiments, after the laundry is put into the washing tub before water is supplied, the washing tub rotates for a period of time, the weight of the current laundry is determined by the relevant parameters of the motor, the washing water level and/or the washing water amount are preset according to the weight of the laundry, and after the washing water is supplied to the preset washing water level and/or the washing water amount, the inner tub rotates and the washing water external circulation is started. For example, the circulation pump may be set to on for 30 seconds and off for 30 seconds at this time. The washing water containing the washing liquid at the bottom of the drum is pumped to the upper end of the drum to be sprayed on the clothes through the external circulation of the washing water, so that the uniform dissolution of the detergent and the wetting of the clothes are accelerated, and the detergent is soaked into the clothes to be washed.
After the washing water external circulation is started for a preset time, the dirt degree of the washing water is detected, and the preset value for changing the rotation-stop ratio of the circulating pump is determined according to the detected dirt degree.
Furthermore, the washing water can be fed twice, after the clothes are put into the washing barrel before water feeding, the washing barrel rotates for a period of time, the weight of the current clothes is determined through relevant parameters of the motor, the initial water level and/or the initial water quantity are preset according to the weight of the clothes, after the washing water is fed for the first time to the preset initial water level and/or the initial water quantity, the inner barrel rotates and detects the dirt degree of the washing water, and after the washing water corresponding to the dirt degree is fed for the second time to the final washing water level and/or the final washing water quantity, the washing water external circulation is started. The water inlet control can feed proper washing water according to the dirt degree of clothes, and has the functions of water saving and high washing efficiency.
EXAMPLE five
At present, in order to improve the washing effect of clothes, a common method for controlling laundry includes detecting the turbidity of water within a period of time from the beginning of the laundry, identifying the degree of soiling of the clothes to be washed, and then adjusting the washing time, washing intensity, detergent input amount, rinsing frequency, and the like according to the degree of soiling of the clothes.
When the detected dirt degree of the washed clothes is higher, the conventional clothes washing control method is to feed water to the washing water level once, increase the adding amount of the detergent, so as to improve the concentration of the detergent in the washing water, prolong the washing time and improve the dirt removal effect. Due to the fact that the adding amount of the detergent is increased, in order to reduce the residue of the detergent on clothes, the rinsing times are increased, and the washing water and the rinsing water are increased accordingly.
As shown in fig. 3, the present invention provides a new washing control method, in which the amount of washing water is divided into two water intakes during the washing process, the first water intake is up to the initial water level, and the second water intake is up to the washing water level.
First, laundry is put in at the beginning of washing, and the laundry is weighed. The method comprises the following steps of dividing the weight of clothes into different grades, for example, dividing the weight of the clothes into a plurality of grades, a middle grade and a few grades, weighing the clothes to judge which gear the clothes belong to, presetting different initial water levels and standard washing water levels, and corresponding different clothes weight gears to different preset initial water levels and standard washing water levels. Taking a drum washing machine with a rated washing capacity of 8kg as an example, the weight of clothes is divided into 4 grades, 0-2kg is 1 grade, 2-4kg is 2 grades, 4-6kg is 3 grades, 6-8kg is 4 grades, different grades correspond to different initial water levels and standard washing water levels respectively, the washing water level corresponds to the total water inflow, for example, 1 grade corresponds to a preset standard washing water level of 20L, 2 grade corresponds to a preset standard washing water level of 25L, 3 grade corresponds to a preset standard washing water level of 35L, and 4 grade corresponds to a preset standard washing water level of 40L. It should be noted that the initial water level is lower than the standard washing water level, the corresponding relationship between the weight of the clothes and the initial water level and the standard washing water level, and the corresponding initial water level value and the standard washing water amount can be obtained according to a specific experiment and stored in the washing program.
And further, putting detergent, and starting water inflow for the first time until the water inflow for the first time reaches the initial water level. Specifically, taking 3 rd gear as an example, the water is fed to a preset initial water level corresponding to the weight of the 3 rd gear clothes, which is 15L. In the process of water inlet, a circulating pump (not shown) is started to continuously pump the water at the bottom of the barrel to the upper end of the barrel to be sprayed on the clothes, so that the dissolution of the detergent and the wetting of the clothes are accelerated. And stopping water inflow when the inflow water reaches a preset initial water level.
Further, the inner tub is rotated at a low speed to agitate and wash the laundry. According to multiple experiments of the inventor, the rotating speed of the inner barrel can be set to be about 40-50rpm, and the effect of beating and washing clothes is good. At the moment, the inner barrel can be controlled to periodically switch the rotating direction, so that the effect of beating and washing the clothes is further improved. Therefore, the dirty substances on the clothes are peeled off by the beating washing effect on the clothes caused by the rotation of the inner barrel and the penetration of the clothes caused by the action of the circulating pump.
Further, the dirt level of the washing water is detected, and the dirt level value detected at this time is relatively accurate because of the previous beating washing effect on the laundry caused by the rotation of the inner tub and the penetration of the circulation pump action on the laundry to peel off the dirt on the laundry.
The corresponding actual washing water level, namely the first washing water level, is selected according to the detected dirt degree, namely the dirt degree of the clothes, and the first washing water level determines the final water inflow.
The invention adopts a method of increasing the concentration of the detergent without increasing the dosage of the detergent to realize the washing effect, and particularly the method of increasing the concentration of the detergent is that after the inner barrel rotates at a low speed and is stirred to wash clothes for a set time and detect the turbidity of the dirt, the water is fed for the second time and is fed to the first washing water level. The conventional method is that the higher the turbidity degree is, the more water is fed, and the detergent feeding amount is increased, but the method provided by the invention adopts one-time detergent feeding, the detergent feeding amount is not increased, the first washing water level is in inverse proportion to the turbidity degree, and the higher the turbidity degree is, the lower the first washing water level is. That is, the higher the turbidity, the less the water inflow amount of the final washed laundry, so that the detergent concentration is increased. It should be noted that the first washing water level is lower than or equal to a preset standard washing water level corresponding to the weight of the laundry.
At present, in order to improve the washing effect of clothes, a common method for controlling laundry includes detecting the turbidity of water within a period of time from the beginning of the laundry, identifying the degree of soiling of the clothes to be washed, and then adjusting the washing time, washing intensity, detergent input amount, rinsing frequency, and the like according to the degree of soiling of the clothes.
When the detected dirt degree of the washed clothes is higher, the conventional water inflow control method of the washing machine is to feed water to the washing water level at one time and increase the adding amount of the detergent so as to improve the concentration of the detergent in the washing water, prolong the washing time and improve the decontamination effect. Due to the fact that the adding amount of the detergent is increased, in order to reduce the residue of the detergent on clothes, the rinsing times are increased, and the washing water and the rinsing water are increased accordingly.
As shown in fig. 3, the present invention provides a new method for controlling water inflow of a washing machine, which comprises the steps of firstly adding detergent into water, adding a preset initial amount of water, then detecting the turbidity, and continuously adding an amount of washing water corresponding to the turbidity according to the turbidity. The washing water is fed twice in the washing process, the water is fed to the initial water level for the first time, and the water is fed to the washing water level for the second time.
First, laundry is put in at the beginning of washing, and the laundry is weighed. The method comprises the following steps of dividing the weight of clothes into different grades, for example, dividing the weight of the clothes into a plurality of grades, a middle grade and a few grades, weighing the clothes to judge which gear the clothes belong to, presetting different initial water levels and standard washing water levels, and corresponding different clothes weight gears to different preset initial water levels and standard washing water levels. Taking a drum washing machine with a rated washing capacity of 8kg as an example, the weight of clothes is divided into 4 grades, 0-2kg is 1 grade, 2-4kg is 2 grades, 4-6kg is 3 grades, 6-8kg is 4 grades, different grades correspond to different initial water levels and standard washing water levels respectively, the washing water level corresponds to the total water inflow, for example, 1 grade corresponds to a preset standard washing water level of 20L, 2 grade corresponds to a preset standard washing water level of 25L, 3 grade corresponds to a preset standard washing water level of 35L, and 4 grade corresponds to a preset standard washing water level of 40L. It should be noted that the initial water level is lower than the standard washing water level, the corresponding relationship between the weight of the clothes and the initial water level and the standard washing water level, and the corresponding initial water level value and the standard washing water amount can be obtained according to a specific experiment and stored in the washing program.
And further, putting detergent, and starting water inflow for the first time until the water inflow for the first time reaches the initial water level. Specifically, taking 3 rd gear as an example, the water is fed to a preset initial water level corresponding to the weight of the 3 rd gear clothes, which is 15L. In the process of water inlet, a circulating pump (not shown) is started to continuously pump the water at the bottom of the barrel to the upper end of the barrel to be sprayed on the clothes, so that the dissolution of the detergent and the wetting of the clothes are accelerated. And stopping water inflow when the inflow water reaches a preset initial water level.
Further, the inner tub is rotated at a low speed to agitate and wash the laundry. According to multiple experiments of the inventor, the rotating speed of the inner barrel can be set to be about 40-50rpm, and the effect of beating and washing clothes is good. At the moment, the inner barrel can be controlled to periodically switch the rotating direction, so that the effect of beating and washing the clothes is further improved. Therefore, the dirty substances on the clothes are peeled off by the beating washing effect on the clothes caused by the rotation of the inner barrel and the penetration of the clothes caused by the action of the circulating pump.
Further, the dirt level of the washing water is detected, and the dirt level value detected at this time is relatively accurate because of the previous beating washing effect on the laundry caused by the rotation of the inner tub and the penetration of the circulation pump action on the laundry to peel off the dirt on the laundry.
The washing machine is preset with a standard washing water level corresponding to the weight of clothes, and after detecting the dirt degree, the washing water amount corresponding to the dirt degree is fed to a first washing water level, wherein the first washing water level is lower than or equal to the standard washing water level. The corresponding actual washing water level, namely the first washing water level, is selected according to the detected dirt degree, namely the dirt degree of the clothes, and the first washing water level determines the final water inflow.
The invention adopts a method of increasing the concentration of the detergent without increasing the dosage of the detergent to realize the washing effect, and particularly the method of increasing the concentration of the detergent is that after the inner barrel rotates at a low speed and is stirred to wash clothes for a set time and detect the turbidity of the dirt, the water is fed for the second time and is fed to the first washing water level. The conventional method is that the higher the turbidity degree is, the more water is fed, and the detergent feeding amount is increased, but the method provided by the invention adopts one-time detergent feeding, the detergent feeding amount is not increased, the first washing water level is in inverse proportion to the turbidity degree, and the higher the turbidity degree is, the lower the first washing water level is. That is, the higher the turbidity, the less the water inflow amount of the final washed laundry, so that the detergent concentration is increased. It should be noted that the first washing water level is lower than or equal to a preset standard washing water level corresponding to the weight of the laundry.
In the method for controlling the water inflow of the washing machine provided by the embodiment, the standard washing water level corresponding to the weight of the clothes is preset in the washing machine, and after the turbidity is detected, the amount of washing water corresponding to the turbidity is fed to the first washing water level, wherein the first washing water level is lower than or equal to the standard washing water level. The second water inflow is performed to a washing water level, which is a first washing water level corresponding to the detected contamination level and is an actual washing water level for washing the laundry in the inner tub.
The first washing water level is preset according to different turbidity values, the different turbidity values correspond to different first washing water amounts, the first washing water amount is inversely proportional to the turbidity values, and the higher the turbidity values are, the lower the washing water amount is.
Further, the second time of water intake is up to the washing water level, which is the first washing water level corresponding to the detected dirt level and is the actual washing water level for washing the laundry in the inner tub. N contamination value intervals are preset for the contamination degree, and the contamination value intervals correspond to different first washing water amounts.
Here, taking the laundry amount 3 level as an example, the standard washing water level is 35L. 3 dirty degree value intervals are preset for dirty degree, and the interval in which the detected dirty degree value falls is judged to determine the first washing water amount corresponding to the interval from the second water intake.
As shown in fig. 4, it is first determined whether the detected dirt level is greater than a set value a, and if so, it is determined that the dirt amount is large, and it is determined that the first washing water level is 25L, that is, the final total washing water inflow is 25L. And when the detected turbidity value is smaller than a set value A, continuously judging whether the turbidity value is smaller than a set value B, wherein the set value A is larger than the set value B. And when the dirt degree value is smaller than the set value A and larger than the set value B, judging that the dirt amount is medium, and determining that the first washing water level is 30L, namely the final washing total water inflow is 30L. And when the detected dirt degree value is smaller than a set value B, judging that the dirt amount is small, and determining that the first washing water level is 35L, namely the final washing total water inflow is 35L. The higher the turbidity of the visible dirt is, the less the total water inflow of the final washing is, and the higher the concentration of the detergent in the washing water is under the condition that a certain amount of detergent is put in, the washing effect of the clothes can be realized.
The set value is determined in accordance with actual test conditions. It should be noted that the set value here may be 2 or several, and the first washing water amount corresponding to each turbidity value set value and the water amount difference between the first washing water amounts corresponding to each turbidity value interval may be adjusted and determined according to specific experiments, provided that the normal washing of each laundry amount is not affected.
As shown in fig. 3, the method for controlling water inflow of a washing machine according to the present embodiment includes the steps of:
s101, putting detergent, weighing clothes and judging corresponding initial water level; after clothes are put into the washing barrel before water is fed for the first time, the washing barrel rotates for a period of time, the weight of the current clothes is determined through relevant parameters of the motor, and the initial water level is preset according to the weight of the clothes. Or calculating the weight of the clothes according to the weight measured by the weighing sensor
Step S102, water is fed and the water level is detected; the water level sensor can be a traditional external water level sensor or a built-in water level sensor, and the sensor can be an inductive water level sensor, a direct output voltage water level sensor or a direct output frequency water level sensor.
Step S103, stopping water inflow when the preset initial water level value is reached;
step S104, stirring and timing; the stirring time set here can be adjusted according to the particular test.
Step S105, after stirring for a set time, detecting the turbidity of the sewage; the detected dirt turbidity can be detected by a dirt detecting part arranged in the washing circulation water channel, and the dirt detecting part can be composed of a turbidity sensor.
Step S106, taking a washing water level corresponding to the turbidity degree;
step S107, water is fed again and the water level is detected;
and step S108, stopping water inflow when the preset washing water amount is reached, and continuing stirring and washing.
It should be noted that the embodiments in the above-mentioned embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and those skilled in the art can make various changes and modifications to the technical solution of the present invention without departing from the design concept of the present invention, and all fall into the protection scope of the present invention.
Claims (10)
1. A laundry control method, characterized by: determining a flow time of an external circulation of the washing water in the outer tub according to a turbidity of the washing water, the external circulation of the washing water drawing up the washing water containing the washing liquid from the bottom of the tub to spray on the laundry;
different dirty degree ranges of the washing water are preset, the corresponding dirty degree range is judged according to the detected dirty degree of the washing water, and the flowing time of the external circulation of the washing water is preset corresponding to each dirty degree range.
2. A laundry control method according to claim 1, wherein the turbidity of the washing water is inversely proportional to the flow time of the external circulation of the washing water, and the flow time of the external circulation of the washing water is shorter as the turbidity of the washing water is higher.
3. A laundry control method according to claim 1, wherein the ratio of the turbidity of the washing water to the on-time off-time of the external circulation of the washing water is inversely proportional, and the higher the turbidity of the washing water, the smaller the ratio of the on-time to the off-time of the external circulation of the washing water.
4. A laundry control method according to claim 2 or 3, wherein the weight of the laundry is detected, the washing water level and/or the amount of the washing water is preset according to the weight of the laundry, and after the washing water is introduced to the preset washing water level and/or the amount of the washing water, the inner tub is rotated and the external circulation of the washing water is started.
5. A laundry control method according to claim 4, wherein the turbidity of the washing water is detected after the external circulation of the washing water is started for a predetermined time.
6. A laundry control method according to claim 2 or 3, wherein the weight of the laundry is sensed, the initial water level and/or the initial water amount is preset according to the weight of the laundry, the inner tub is rotated and the turbidity of the washing water is sensed after the washing water is first introduced to the preset initial water level and/or the initial water amount, and the external circulation of the washing water is started after the washing water corresponding to the turbidity is second introduced to the final washing water level and/or the final washing water amount.
7. A laundry control method according to claim 1, wherein the rotation-stop ratio of the circulation pump of the washing machine is changed during a predetermined period of time during the washing process, said rotation-stop ratio being a predetermined value and being related to the detected turbidity of the washing water.
8. A laundry control method according to claim 1, wherein the washing machine circulation pump is controlled to operate at different spin-stop ratios throughout the washing process, the spin-stop ratios being preset values and being related to the detected turbidity of the washing water.
9. A laundry control method according to claim 1, wherein determining the flow time of the external circulation of the washing water in the outer tub according to the turbidity of the washing water comprises:
determining the flow time of the external circulation of the washing water in the outer tub before detecting the turbidity of the washing water, and expressing the rotation-stop ratio of the circulating pump as K0;
after the turbidity of the washing water is detected,
when a0> a1 is satisfied, determining a flow time of an outer circulation of wash water in the outer tub as K1 with a circulation pump turn-off ratio;
when A2 ≦ A0 ≦ A1 is satisfied, determining a flow time of the external circulation of the washing water in the outer tub expressed as a circulation pump turn-off ratio K2;
when a0< a2 is satisfied, determining a flow time of an outer circulation of wash water in the outer tub as K0 with a circulation pump turn-off ratio;
wherein a1 and a2 are the first and second turbidity values, a0 is the detected turbidity value, a2< a 1; k1 and K2 are the first circulating pump stop/start ratio and the second circulating pump stop/start ratio, K0 is the standard circulating pump stop/start ratio, and K1< K2< K0.
10. A washing machine characterized by employing the laundry control method as claimed in any one of claims 1 to 9.
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| CN109008862A (en) * | 2018-09-19 | 2018-12-18 | 佛山市顺德区美的洗涤电器制造有限公司 | The control method and dish-washing machine of dish-washing machine |
| CN111387904A (en) * | 2019-01-03 | 2020-07-10 | 青岛海尔洗衣机有限公司 | Control method for washing equipment and washing equipment |
| CN111850942B (en) * | 2019-04-01 | 2022-07-19 | 青岛海尔洗衣机有限公司 | Control method of washing machine |
| CN112813642A (en) * | 2019-10-31 | 2021-05-18 | 青岛海尔洗衣机有限公司 | Washing machine control method and washing machine |
| CN112941811A (en) * | 2021-03-02 | 2021-06-11 | 河北红岸基地科技有限公司 | Intelligent circulating multi-water-flow pulsator-free clothes washing method |
| CN113279217A (en) * | 2021-06-09 | 2021-08-20 | 海信（山东）冰箱有限公司 | Washing method of drum washing machine and drum washing machine |
| CN114592315B (en) * | 2022-03-09 | 2023-12-29 | 深圳拓邦股份有限公司 | Control method of washing equipment and washing equipment |
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Effective date of registration: 20210310 Address after: Room 221, management committee of Sino German ecological park, 2877 Tuanjie Road, Huangdao District, Qingdao, Shandong 266510 Applicant after: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. |
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