CN112064291B - Washing machine and control method thereof - Google Patents
Washing machine and control method thereof Download PDFInfo
- Publication number
- CN112064291B CN112064291B CN201910431947.0A CN201910431947A CN112064291B CN 112064291 B CN112064291 B CN 112064291B CN 201910431947 A CN201910431947 A CN 201910431947A CN 112064291 B CN112064291 B CN 112064291B
- Authority
- CN
- China
- Prior art keywords
- water
- laundry
- clothes
- washing
- control method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005406 washing Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 214
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 238000009736 wetting Methods 0.000 claims abstract description 14
- 230000001502 supplementing effect Effects 0.000 claims abstract description 6
- 239000003599 detergent Substances 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 229920006395 saturated elastomer Polymers 0.000 claims description 10
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 claims description 3
- 238000010412 laundry washing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/46—Control of the energy or water consumption
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid level
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/38—Time, e.g. duration
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/02—Water supply
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/06—Recirculation of washing liquids, e.g. by pumps or diverting valves
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/16—Air properties
- D06F2105/20—Temperature
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/28—Electric heating
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/04—Heating arrangements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
A control method of a washing machine includes a wetting laundry stage including supplying water to a washing tub in an amount less than a water supply amount required for washing laundry, a heating laundry stage including heating air in the washing tub to heat the wetted laundry in the washing tub, and a washing laundry stage including supplementing water into the washing tub and performing a washing operation on the laundry. A washing machine comprises a control device and a washing tub, wherein the control device is arranged to control the operation of the washing machine according to the control method.
Description
[ field of technology ]
The invention belongs to the technical field of household appliances, relates to a washing control method of a washing machine, and further relates to a washing machine capable of realizing the control method.
[ background Art ]
The water inflow is usually controlled during the wetting process of the washing program of the washing machine, and the water inflow is precisely controlled according to different load weights and the water absorption characteristics of the load. The main known method is to adjust the water intake according to the pressure sensor so that a reasonable water level is reached in the tub. This control method is generally applicable to conventional wash program control, and typically the water intake of the wash step is over 2 times the dry load weight. The heating device in the washing barrel heats the water entering the bottom of the washing barrel, accelerates the dissolution of the detergent and the dissolution of stains, and improves the activity of the detergent.
[ invention ]
An object of the present invention is to provide an improved control method of a washing machine, which reduces the use of a detergent in a washing process and improves heating efficiency.
The invention provides a control method of a washing machine, which comprises a clothes wetting stage, a clothes heating stage and a clothes washing stage, wherein the clothes wetting stage comprises the step of providing water with less water than the water supply amount required by clothes washing in a washing drum, the clothes heating stage comprises the step of heating air in the washing drum to heat the clothes wetted in the washing drum, and the clothes washing stage comprises the step of supplementing water into the washing drum and performing washing operation on the clothes.
In the stage of wetting clothes, as less water is supplied, the same mixing concentration of the detergent and the water uses less detergent, the use efficiency of the detergent is higher, and the influence of the detergent on the environment is reduced. Meanwhile, since less water is supplied in the stage of wetting the laundry, the heating efficiency is also higher in the stage of heating the laundry, and the electricity is also saved. With air heating and less water supply, the water-absorbed clothes are largely exposed to air, unlike most of the conventional clothes immersed in water. The clothes exposed in the air are directly heated by the high-temperature air, and the heating efficiency is higher. The hot air also heats the entire washing environment, providing a thermal reserve for subsequent washing procedures.
The wetting phase includes controlling the water intake so that the total water intake during this phase is less than the water intake required for saturation of the laundry.
It is also possible to control the total water intake during the moistening phase to be approximately half the water intake required for saturation of the laundry.
In order to allow the water to be sufficiently absorbed by the laundry, the wetting stage may further include starting a circulation pump to spray the water at the bottom of the tub onto the laundry.
The heating laundry stage may include turning on a heating device and a fan in an air circulation passage connected to the tub. In other embodiments, the heating means in the washing tub may also be turned on. The effect of heating the air is also possible if the water in the washing tub is already below the location where the heating device is installed. When the water passes over the heating means in the tub, the heating means is activated to heat the water.
The wet laundry phase may further comprise:
water is fed into the washing tub to a second set amount V2,
starting a circulating pump to spray water at the bottom of the washing barrel onto clothes to enable the clothes to fully absorb water,
dehydrating the laundry by setting a rotational speed, and the rotational speed is set such that the water content of the dehydrated laundry is 1 time the weight of the dried laundry,
determining the amount of water removed, and determining the weight of the dried laundry according to the amount of water removed,
the washing tub is supplemented with water so that the total water inflow in the wet laundry stage is a set multiple of the weight of the dry laundry, wherein the total water inflow is smaller than the water inflow required for saturated water absorption of the dry laundry.
If one of the objectives of the wet laundry phase is to control the water intake so that the total water intake is smaller than the water intake required for saturated water absorption of the dry laundry, the water intake in the washing tub is not controlled by the conventional method of pressure detection only, because the laundry absorbs water, because the water amount in the washing tub is unstable. By the method, the water quantity removed in the dehydration step is subtracted from the second set quantity V2 of the water inlet, namely the water quantity absorbed by the clothes, and the water content after dehydration can be 1 time of the weight of the dried clothes by properly setting the rotating speed, so that the water quantity absorbed by the clothes can be obtained to be approximately equal to the weight of the dried clothes. And then supplementing the water inflow according to the weight of the dried clothes. The water inlet control of the method can obtain more accurate control results.
The set rotating speed for dehydrating the clothes is 300-800 revolutions per minute, and is different according to different clothes materials. The set rotation speed for dehydrating the clothes can be obtained in advance through experiments on clothes made of different materials. For example, for towels, a spin rate of about 800 revolutions per minute may result in a post-spin moisture content of 1 times the weight of the towel as it is dried. For general cotton clothes, the dehydration rotating speed can reach one time of water content at about 600 revolutions per minute. For chiffon materials, the spin-drying speed is around 300 revolutions per minute.
The set multiple may be set to be less than the saturated water absorption of the laundry by half or more. The clothes can be fully wetted under the condition, and meanwhile, the water which is thrown out during the rotation process of the drum is not too much. Since less water is used, less detergent is required to reach the same concentration, the detergent can be fully utilized, and the subsequent heating of the laundry by air is also more efficient.
After the water is supplied to the washing barrel, the circulating pump can be restarted, so that the water in the washing barrel is fully absorbed by clothes, and the water and the detergent in the water are fully utilized.
The laundry wetting phase may also initially comprise a first water intake process in which water is fed into the tub through the detergent container by a first set amount V1, and then a pressure value associated with the water amount in the tub is detected, and if the pressure value is greater than a high set value N1, the circulation pump is started to spray water at the bottom of the tub onto the laundry to allow the laundry to sufficiently absorb water, and then the laundry heating phase is entered. The first set amount V1 is generally small, for example 3.5 litres, during this process only in order to ensure adequate flushing of the detergent from the cartridge. If the pressure value is always higher than the high set value N1, this means that less laundry is absorbed and the laundry amount is less. In this case, no water is required, and less laundry is heated in the subsequent laundry heating stage to achieve a good heating effect.
If the pressure value is smaller than the low set value N2, entering a second water inlet process, in the second water inlet process, water is fed into the washing barrel, if the pressure value is increased to be larger than the high set value N1, water feeding is stopped, the pressure value is continuously detected, and when the pressure value is smaller than the low set value N2, water is fed again, and the process is repeated; when the duration of the second water inlet process reaches the set time t or the total water inlet amount in the washing barrel reaches the second set amount V2, ending the second water inlet process and starting the circulating pump to spray the water at the bottom of the washing barrel onto the clothes to enable the clothes to fully absorb water, wherein the high set value N1 is larger than the low set value N2. In this process, the set time t of the inflow is one of conditions in order to make the laundry sufficiently absorb water. The set time t may be, for example, 1 minute.
If the duration of the second water inlet process reaches the set time t and the total water inlet quantity in the washing barrel does not reach the second set quantity V2, the circulating pump circularly sprays water to the clothes and then enters the clothes heating stage. Under this condition, it is explained that the laundry amount is small, and thus, a good heating effect can be achieved in the subsequent heating stage without supplementing additional water.
If the total water inflow in the washing barrel reaches a second set quantity V2 after the second water inflow process is finished, the clothes are dehydrated through a set rotating speed after the circulating pump circularly sprays water to the clothes, the rotating speed is set to enable the water content of the dehydrated clothes to be 1 time of the weight of the dried clothes, the water quantity is determined, the weight of the dried clothes is determined according to the water quantity which is removed, and finally water inflow is supplemented to the washing barrel, so that the total water inflow in the clothes wetting stage is a set multiple of the weight of the dried clothes, and the total water inflow is smaller than the water quantity required by saturated water absorption of the dried clothes.
The invention also provides a washing machine comprising a control device, a washing tub, wherein the control device is arranged to control the operation of the washing machine according to one or any combination of the above various control methods.
Specific embodiments of the present invention will be described below by way of example with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a construction view of a washing machine;
FIG. 2 is a washing program control flow chart of the washing machine;
fig. 3 is a control flow diagram of the wet laundry phase.
[ detailed description ] of the invention
As shown in fig. 1, the washing machine 100 has a washing tub 4 located in a cabinet 2. The washing tub 4 is provided therein with a drum 6 rotatably driven. The drum 6 is provided with through holes (not shown in the drawings) on its wall so as to be in fluid communication with the tub 4. The washing liquid entering the washing tub 4 may enter the drum 6. The air in the washing tub 4 and the drum 6 may also be circulated with each other. The laundry is washed in the drum 6.
The washing tub 4 is connected to an air circulation passage 8. A fan 81 and a heating device 82 are provided in the air circulation passage 8. The fan 81 and the heating device 82 are activated to supply hot air into the tub 4.
The bottom of the washing tub 4 is connected with a washing liquid circulation passage 9. The washing liquid circulation path 9 is provided with a circulation pump 91. After the circulation pump 91 is started, the washing liquid can be pumped from the bottom of the washing tub 4 through the washing liquid circulation path 9 to spray the washing liquid to the laundry.
The bottom of the washing tub 4 is also provided with a pressure sensor 11 for acquiring the water pressure in the washing tub 4. In other embodiments, the pressure sensor may be located in other places suitable for obtaining a change in water pressure, for example in the drain channel 3 or on the damping support device 5.
The washing machine 100 further includes a cartridge 12 that supplies detergent to the washing tub 4. The water supply pipe 13 supplies water to the cartridge 12. The water supply pipe 13 is provided with a water valve 14. After the water valve 14 is opened, water supplied into the water supply pipe 13 flows into the material box 12, is mixed with the detergent in the material box 12 and then is flushed into the washing tub 4 to participate in the clothes washing process.
The washing machine 100 is further provided with a control device 10 connected to the water valve 14, the fan 81, the heating device 82, the circulation pump 91, and the pressure sensor 11, respectively, to receive information according to program settings and control the operation of the respective electric components.
The washing machine 100 includes a variety of washing programs. Fig. 2 shows a control process of one of the washing procedures. The control course of the washing program includes a wet laundry stage P1, a heat laundry stage P2, and a wash laundry stage P3. Wherein the wet laundry stage P1 includes supplying water to the inside of the tub 4 in an amount less than a water supply amount required for laundry washing, and the heat laundry stage P2 includes turning on the heating means 82 and the fan 81 in the air circulation path 8 to heat air in the tub 4 to heat the wet laundry in the tub 4, and the wash laundry stage includes supplementing water to the inside of the tub and performing a washing operation on the laundry.
As shown in fig. 3, the wet laundry phase P1 includes:
a first step S1, comprising a first water intake process, comprises the control device 10 opening the water valve 14, supplying a first set amount V1 of water to the cartridge 12 through the water supply pipe. The water is mixed with the detergent in the cartridge 12 and then flows into the washing tub 4. In principle, the first set quantity V1 is of such a size that the detergent in the cartridge 12 is rinsed clean and there is substantially no residue in the cartridge 12. The first set amount V1 may be set to 3.5 liters, for example. During the water inflow, the control device 10 controls a driving device (not shown in the drawing) to rotate the drum 6 at a low speed. The drum 6 rotates at a low speed to continuously turn over the clothes, so that the clothes can absorb water fully. The mixed liquid of the detergent and the water partially permeates the laundry in the drum 6, and partially flows into the bottom of the tub 4.
A second step S2, including the low-speed rotation of the drum 6, continuously detects a pressure value associated with the amount of water in the tub 4. The pressure value is detected, for example, by a pressure sensor 11.
If the pressure value is greater than the high set value N1, the water valve 14 is kept closed, the drum 6 is rotated, and the pressure value is continuously detected. If the set time t passes and the pressure value is always greater than the high set value N1, the second step S2 is ended and the third step S3 is entered. This indicates that less laundry is present in the drum 6 and less water is absorbed, and the subsequent heating of the laundry phase can be better completed, so that no additional water intake is required.
If the pressure value is reduced to be smaller than the low set value N2 or the pressure value is smaller than the low set value N2 after the first water inlet process is finished, the second water inlet process is started. Wherein the high setting N1 is greater than the low setting N2. In the second water inflow process, water is fed into the washing tub 4, if the pressure value is increased to be greater than the high set value N1, water inflow is stopped, at this time, the pressure value is continuously detected, and when the pressure value is smaller than the low set value N2, water is re-fed, and so on is repeated. When the duration of the second water intake process reaches the set time t or the total water intake amount in the washing tub 4 reaches the second set amount V2, either one of these two conditions is satisfied, the second water intake process is ended, and the third step S3 is entered. Wherein the set time t is for example 1 minute and the second set amount V2 of the inflow is for example 5 liters. The control conditions include the second water intake course duration in order for the laundry to absorb more water to some extent.
After the second step S2 is completed, the total water inflow is the maximum second set amount V2 and the minimum first set amount V1, that is, no water inflow is supplemented in the second step S2.
A third step S3, including the control device 10 starting the circulation pump 91 to spray the water at the bottom of the washing tub 4 onto the laundry, and simultaneously the drum 6 rotates at a low speed to make the laundry fully absorb water. For example, the circulation pump 91 is operated until the pressure sensor 11 fails to detect a signal or the detected signal is close to zero.
Before proceeding to the fourth step S4, a decision step S0 is present. The judging step S0 includes judging whether the total amount of water supplied to the tub 4 reaches a second set amount V2. If the total water quantity does not reach the second set quantity within the set time t, the fact that the clothes quantity is small is indicated, and water inflow is not needed to be supplemented. If the total water quantity reaches the second set quantity V2, the fourth step S4 is entered.
And a fourth step S4, dehydrating the clothes by setting the rotating speed, so that part of water is discharged out of the clothes. The control key point of the step is to control the water content of the dehydrated clothes to be about 1 time of the weight of the dried clothes. The set rotating speed for dehydrating the clothes can be 300-800 revolutions per minute and is different according to different clothes materials. The set rotational speed for dehydrating the laundry may be obtained in advance through experiments on laundry of different materials. For example, for towels, a spin rate of about 800 revolutions per minute may result in a post-spin moisture content of 1 times the weight of the towel as it is dried. For general cotton clothes, the dehydration rotating speed can reach one time of water content at about 600 revolutions per minute. For chiffon materials, the spin-drying speed is around 300 revolutions per minute. In particular embodiments, the washing machine may select the corresponding rotational speed after determining the laundry texture, for example, when a user sets a program or during automatic recognition of the laundry texture by the machine.
In the fifth step S5, since a portion of the water is discharged out of the laundry in the fourth step S4, the pressure sensor 11 may detect a signal, thereby determining the amount of water removed in the fourth step S4. Since the water content is close to the weight of the dried laundry at the dehydration rotation speed set in the fourth step S4. The total water inflow amount second set amount V2 is subtracted from the amount of water removed to obtain the water content in the laundry, whereby the weight of the laundry in a dry state can be obtained.
In order to make the laundry use less detergent while securing the washing effect and to obtain a better air heating effect, it is determined that the total water inflow in the wet laundry stage P1 is set to be a set multiple of the weight of the dry laundry, and the set multiple is less than or equal to half of the saturated water absorption of the laundry. For example, for a typical cotton fabric, the total water intake to the washing tub 4 may be made between 1.5 and 2 times the weight of the dry laundry in the tub; for towels, the total water intake can be 2.5 times the weight of the dry towel or more; for chemical fabrics, the total water intake can be 1 or slightly more than 1 times the weight of the dry laundry. After the total water inflow is determined, the control device 10 can control the water valve 14 to supplement the water inflow to the washing tub 4 to the expected total water inflow.
A sixth step S6 includes restarting the circulation pump 91 while rotating the drum 6 at a low speed, thereby allowing the water in the tub 4 to be sufficiently absorbed by the laundry. In general, in this step, water in the washing tub 4 is almost completely absorbed by the laundry. In practice, all the water that can be pumped by the circulation pump 91 is sprayed onto the laundry, the pressure sensor 11 again loses the signal or the detected signal approaches a zero value. The sixth step S6 is ended at this time.
The various embodiments described above and shown in the figures are only illustrative of the invention. Any modification of the present invention by one of ordinary skill in the related art is within the scope of the basic technical idea of the present invention.
Claims (15)
1. A control method of a washing machine, comprising: a wet laundry phase, a heat laundry phase, and a wash laundry phase, wherein the wet laundry phase includes providing water into the wash tub in an amount less than a water supply required for laundry washing, the heat laundry phase includes heating air in the wash tub to heat wet laundry in the wash tub, the wash laundry phase includes supplementing water into the wash tub, and performing a washing operation on the laundry, wherein
The wet laundry phase comprises:
water is fed into the washing tub to a second set amount V2,
starting a circulating pump to spray water at the bottom of the washing barrel onto clothes to enable the clothes to fully absorb water,
the laundry is dehydrated by setting the rotation speed,
determining the amount of water removed, and determining the weight of the dried laundry according to the amount of water removed,
the washing tub is supplemented with water so that the total water inflow in the wet laundry stage is a set multiple of the weight of the dry laundry, wherein the total water inflow is smaller than the water inflow required for saturated water absorption of the dry laundry.
2. The control method according to claim 1, characterized in that: the wetting stage includes controlling the water intake such that the total water intake in the stage is less than the water intake required for saturation of the laundry.
3. The control method according to claim 2, characterized in that: the total water intake is controlled in the moistening stage to be half of the water required for saturated water absorption of the clothes.
4. The control method according to claim 2, characterized in that: the clothes wetting stage comprises starting a circulating pump to spray water at the bottom of the washing barrel onto clothes, so that the clothes are fully absorbed in water.
5. The control method according to claim 1, characterized in that: the laundry heating stage includes turning on a heating device and a fan in an air circulation path connected to the tub.
6. The control method according to claim 1, characterized in that: the rotational speed is set such that the water content of the laundry after dehydration is 1 time the weight of the dried laundry.
7. The control method according to claim 6, characterized in that: the set rotating speed for dehydrating the clothes is 300-800 revolutions per minute, and is different according to different clothes materials.
8. The control method according to claim 7, characterized in that: the set rotational speed for dehydrating the laundry is obtained in advance through experiments on laundry of different materials.
9. The control method according to claim 1, characterized in that: the set multiple is smaller than the saturated water absorption of the clothes and is larger than or equal to half of the saturated water absorption of the clothes.
10. The control method according to claim 1, characterized in that: after the water is supplemented into the washing barrel, the circulating pump is restarted, so that the water in the washing barrel is fully absorbed by clothes.
11. The control method according to claim 1, characterized in that: the laundry wetting phase includes a first water intake process in which water is introduced into the tub through the detergent container by a first set amount V1, and then a pressure value associated with the amount of water in the tub is detected, and if the pressure value is greater than a high set value N1, a circulation pump is started to spray water at the bottom of the tub onto laundry to sufficiently absorb water from the laundry, and then the laundry heating phase is entered.
12. The control method according to claim 11, characterized in that: if the pressure value is smaller than the low set value N2, entering a second water inlet process, in the second water inlet process, water is fed into the washing barrel, if the pressure value is increased to be larger than the high set value N1, water feeding is stopped, the pressure value is continuously detected, and when the pressure value is smaller than the low set value N2, water is fed again, and the process is repeated; when the duration of the second water inlet process reaches the set time t or the total water inlet amount in the washing barrel reaches the second set amount V2, ending the second water inlet process and starting the circulating pump to spray the water at the bottom of the washing barrel onto the clothes to enable the clothes to fully absorb water, wherein the high set value N1 is larger than the low set value N2.
13. The control method according to claim 12, characterized in that: if the duration of the second water inlet process reaches the set time t and the total water inlet quantity in the washing barrel does not reach the second set quantity V2, the circulating pump circularly sprays water to the clothes and then enters the clothes heating stage.
14. The control method according to claim 12, characterized in that: if the total water inflow in the washing barrel reaches a second set quantity V2 after the second water inflow process is finished, the clothes are dehydrated through a set rotating speed after the circulating pump circularly sprays water to the clothes, the rotating speed is set to enable the water content of the dehydrated clothes to be 1 time of the weight of the dried clothes, the water quantity is determined, the weight of the dried clothes is determined according to the water quantity which is removed, and finally water inflow is supplemented to the washing barrel, so that the total water inflow in the clothes wetting stage is a set multiple of the weight of the dried clothes, and the total water inflow is smaller than the water quantity required by saturated water absorption of the dried clothes.
15. Washing machine contains controlling means, washing bucket, its characterized in that: the control device is arranged to control the operation of the washing machine according to the control method of any one of claims 1-14.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431947.0A CN112064291B (en) | 2019-05-23 | 2019-05-23 | Washing machine and control method thereof |
| EP20729004.0A EP3973097A1 (en) | 2019-05-23 | 2020-05-20 | Washing machine and control method thereof |
| PCT/EP2020/064103 WO2020234370A1 (en) | 2019-05-23 | 2020-05-20 | Washing machine and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431947.0A CN112064291B (en) | 2019-05-23 | 2019-05-23 | Washing machine and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112064291A CN112064291A (en) | 2020-12-11 |
| CN112064291B true CN112064291B (en) | 2023-11-17 |
Family
ID=70918409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910431947.0A Active CN112064291B (en) | 2019-05-23 | 2019-05-23 | Washing machine and control method thereof |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3973097A1 (en) |
| CN (1) | CN112064291B (en) |
| WO (1) | WO2020234370A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3117134B1 (en) * | 2020-12-09 | 2023-11-24 | Groupe Brandt | Laundry washing process, washing machine and program implementing such a process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19743508A1 (en) * | 1997-10-01 | 1999-04-08 | Bosch Siemens Hausgeraete | Heating washing solution in washing machine |
| DE102007028212A1 (en) * | 2007-06-20 | 2008-12-24 | BSH Bosch und Siemens Hausgeräte GmbH | Process for the treatment of laundry items and washing machine suitable for this purpose |
| EP2540896A1 (en) * | 2011-06-30 | 2013-01-02 | Electrolux Home Products Corporation N.V. | Method for washing laundry in a laundry washing machine and laundry washing machine |
| CN103380243A (en) * | 2010-12-29 | 2013-10-30 | 阿塞里克股份有限公司 | A washing machine with self-cleaning feature |
| CN103842574A (en) * | 2011-10-03 | 2014-06-04 | 伊莱克斯家用产品股份有限公司 | Method for washing laundry in a laundry washing machine |
| CN105829596A (en) * | 2013-12-06 | 2016-08-03 | Bsh家用电器有限公司 | Method for Treating Laundry with Improved Wetting Phase, and Washing Machine Suitable for This Purpose |
| CN106605018A (en) * | 2014-08-28 | 2017-04-26 | Bsh家用电器有限公司 | Laundry-treatment appliance having a feeding device |
| CN109137399A (en) * | 2018-10-25 | 2019-01-04 | 无锡小天鹅股份有限公司 | Roller washing machine and its control method of washing and device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6269666B1 (en) * | 1999-06-22 | 2001-08-07 | Whirlpool Corporation | Control for an automatic washer with spray pretreatment |
| DE102004061894A1 (en) * | 2004-12-22 | 2006-07-06 | BSH Bosch und Siemens Hausgeräte GmbH | Process for impregnating textiles |
| DE102005012426A1 (en) * | 2005-03-17 | 2006-09-21 | BSH Bosch und Siemens Hausgeräte GmbH | Wetting process for the laundry in a program-controlled washing machine |
| US8393183B2 (en) * | 2007-05-07 | 2013-03-12 | Whirlpool Corporation | Fabric treatment appliance control panel and associated steam operations |
| EP2503043B1 (en) * | 2011-03-24 | 2014-09-10 | Electrolux Home Products Corporation N.V. | Method for washing laundry in a laundry washing machine and laundry washing machine |
-
2019
- 2019-05-23 CN CN201910431947.0A patent/CN112064291B/en active Active
-
2020
- 2020-05-20 EP EP20729004.0A patent/EP3973097A1/en active Pending
- 2020-05-20 WO PCT/EP2020/064103 patent/WO2020234370A1/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19743508A1 (en) * | 1997-10-01 | 1999-04-08 | Bosch Siemens Hausgeraete | Heating washing solution in washing machine |
| DE102007028212A1 (en) * | 2007-06-20 | 2008-12-24 | BSH Bosch und Siemens Hausgeräte GmbH | Process for the treatment of laundry items and washing machine suitable for this purpose |
| CN103380243A (en) * | 2010-12-29 | 2013-10-30 | 阿塞里克股份有限公司 | A washing machine with self-cleaning feature |
| EP2540896A1 (en) * | 2011-06-30 | 2013-01-02 | Electrolux Home Products Corporation N.V. | Method for washing laundry in a laundry washing machine and laundry washing machine |
| CN103842574A (en) * | 2011-10-03 | 2014-06-04 | 伊莱克斯家用产品股份有限公司 | Method for washing laundry in a laundry washing machine |
| CN105829596A (en) * | 2013-12-06 | 2016-08-03 | Bsh家用电器有限公司 | Method for Treating Laundry with Improved Wetting Phase, and Washing Machine Suitable for This Purpose |
| CN106605018A (en) * | 2014-08-28 | 2017-04-26 | Bsh家用电器有限公司 | Laundry-treatment appliance having a feeding device |
| CN109137399A (en) * | 2018-10-25 | 2019-01-04 | 无锡小天鹅股份有限公司 | Roller washing machine and its control method of washing and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112064291A (en) | 2020-12-11 |
| WO2020234370A1 (en) | 2020-11-26 |
| EP3973097A1 (en) | 2022-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2360052C2 (en) | Laundry washer and method for control of laundry washer washing mode | |
| RU2355835C1 (en) | Laundry washer and method for laundry washing mode control | |
| US10648113B2 (en) | Method for washing laundry in a laundry washing machine and laundry washing machine | |
| RU2300590C2 (en) | Washing machine with steam generator and method for controlling the same | |
| JP6291089B2 (en) | Washing machine control method | |
| EP1505193A2 (en) | Washing machine | |
| JP4163445B2 (en) | Washing and drying machine | |
| JP2004008275A (en) | Washing and drying machine | |
| RU2634578C2 (en) | Method for washing machine operation providing reduced content of residual moisture in laundry and washing machine suitable for method implementation | |
| JP4948642B1 (en) | Washing and drying machine | |
| US8365333B2 (en) | Laundry machine and controlling method thereof | |
| JP3457810B2 (en) | Drum type washing machine | |
| JP2007050153A (en) | Washing/drying machine | |
| EA017035B1 (en) | Method for the treatment of laundry, and washing machine suitable for this purpose | |
| JP2006217953A (en) | Drum type washing machine | |
| KR20020057119A (en) | Washing method for washing machine | |
| CN112064291B (en) | Washing machine and control method thereof | |
| JP2003111998A (en) | Dryer | |
| JP2014079350A (en) | Washing machine | |
| KR102557579B1 (en) | Control method for laundry washing machine | |
| JP5395580B2 (en) | Drum washing machine | |
| JP2009261450A (en) | Drum washing machine | |
| CN110735278B (en) | Vertical washing and drying machine | |
| JP2009261673A (en) | Drum washing machine | |
| KR20140084952A (en) | Heating wash control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |