CN119083116A - Washing and drying machine and control method for steam care of clothes - Google Patents
Washing and drying machine and control method for steam care of clothes Download PDFInfo
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- CN119083116A CN119083116A CN202310624303.XA CN202310624303A CN119083116A CN 119083116 A CN119083116 A CN 119083116A CN 202310624303 A CN202310624303 A CN 202310624303A CN 119083116 A CN119083116 A CN 119083116A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000001035 drying Methods 0.000 title claims abstract description 28
- 238000005406 washing Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 220
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000007664 blowing Methods 0.000 claims abstract description 16
- 238000011282 treatment Methods 0.000 claims description 36
- 239000004744 fabric Substances 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 230000000474 nursing effect Effects 0.000 abstract description 7
- 230000037303 wrinkles Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000001877 deodorizing effect Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/203—Laundry conditioning 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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
- D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/65—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing phases, e.g. for smoothing or removing creases
-
- 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
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- 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
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/20—Operation modes, e.g. delicate laundry washing programs, service modes or refreshment cycles
-
- 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
- D06F2103/28—Air properties
- D06F2103/32—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
- D06F2105/08—Draining of washing liquids
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/30—Blowers
-
- 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
- D06F2105/36—Condensing arrangements, e.g. control of water injection therefor
-
- 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
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention relates to a control method for steam nursing of clothes by a washing and drying machine, wherein the washing and drying machine comprises a circulating air channel, two ends of the circulating air channel are communicated with a processing barrel, a heating device and a blowing device are arranged in the circulating air channel, a water supply device introduces water flow into the circulating air channel or along the barrel wall of the processing barrel, a rotatable inner barrel is arranged in the processing barrel, a gap is arranged between the inner barrel and the processing barrel, the control method comprises the steps of enabling the blowing device to rotate at a first rotation speed, starting and controlling the heating device, and starting the water supply device, so that the water flow and the air flow heated by the heating device are subjected to heat exchange, and at least part of the water flow is evaporated into steam. The invention also relates to a washer-dryer for steam care of laundry.
Description
[ Field of technology ]
The present invention relates to the field of control methods for washers and dryers, and also to washers and dryers.
[ Background Art ]
It has been found that steam has care effects of removing wrinkles, sterilizing, deodorizing, etc. on fabrics, and various laundry care machines thus apply steam to a care program to specially care laundry.
For generating steam, it is common and also conceivable to introduce steam generating means. For example, heating water in a specially arranged water container, or generating water mist by an atomizing device, heating the water mist, etc. Therefore, the cost of the machine is increased, and meanwhile, the space which is very limited in the machine is occupied, so that the design difficulty and the maintenance cost of the machine are increased.
[ Invention ]
It is an object of the present invention to use existing hardware of a washer-dryer to generate steam through a new control method to steam care laundry.
The embodiment of the invention discloses a control method for steam nursing of clothes by a washing and drying machine, wherein the washing and drying machine comprises a circulating air channel with two ends communicated with a processing barrel, a heating device and a blowing device are arranged in the circulating air channel, a water supply device introduces water flow into the circulating air channel or along the barrel wall of the processing barrel, a rotatable inner barrel is arranged in the processing barrel, a gap is arranged between the inner barrel and the processing barrel, and the control method comprises the following steps:
Step one (S101), enabling the air blowing device to rotate at a first rotation speed, and enabling air flow to be generated in the circulating air duct, wherein the air flow circularly flows in the circulating air duct and the treatment barrel;
Step two (S102), starting and controlling the heating device, heating the air flow passing through the heating device, and enabling the temperature of the air downstream of the heating device to reach a first temperature;
and step three (S103), the water supply device is started, so that the water flow exchanges heat with the air flow heated by the heating device and at least part of the water flow is evaporated into steam.
As an alternative embodiment, after the water supply device is turned on, the inner tub is rotated at a first rotational speed, wherein the first rotational speed is equal to or greater than the minimum dehydration rotational speed.
The optional embodiment further comprises detecting the water level supplied by the water supply device and finally entering the treatment barrel after the water supply device is started, and enabling the inner barrel to rotate at a first rotation speed when the water level reaches a first preset water level, wherein the first preset water level is smaller than or equal to the water level of the water surface just reaching the outer surface of the inner barrel.
Preferably, the inner tub is switched to rotate at a second rotational speed after being rotated at the first rotational speed for a first predetermined period of time, wherein the second rotational speed is set to be less than the minimum dehydrating rotational speed, and the laundry may be turned over at the second rotational speed.
Preferably, the inner tub rotates in a single direction when rotating at the first rotational speed, and alternately rotates in two directions when rotating at the second rotational speed.
Optionally, the inner tub rotates alternately at the first rotational speed and the second rotational speed.
An alternative embodiment further comprises that the first temperature is the highest safe temperature for the fabric.
In addition, after the heating device is turned on for a preset time or for a preset period, the heating device is controlled to reduce the temperature of the air downstream of the heating device to a second temperature.
The alternative embodiment further comprises, after the water supply is turned on, turning the water supply on and off at a preset frequency, and keeping the blower means and the heating means on during the time the water supply is turned off.
In some alternative embodiments, the water supply means comprises a first water supply means of greater flow rate and a second water supply means of lesser flow rate, under which condition it is preferred to only turn on the first water supply means.
For one of the embodiments of the water supply device, the circulation duct comprises a heat exchange zone, the water supply device spraying water against the walls of the heat exchange zone.
As the water supply device supplies water, the water level entering the treatment tub may rise and may enter the inner tub, thereby wetting the laundry in the inner tub. Accordingly, after the water supply device is turned on, the water level of the treatment tub is detected, and when the water level reaches a second predetermined level, which is less than the water level at which the water just reaches the outer surface of the inner tub, the water discharge device is turned on to discharge the water in the treatment tub.
And the water draining device is started for a third preset time period, or is closed when the water level in the treatment barrel is detected to be smaller than or equal to a third preset water level.
Optionally, when the water level reaches the second preset water level, the water supply device is turned off, and when the water level is smaller than or equal to the third preset water level, the water supply device is turned on again, and the air blowing device and the heating device are kept on before the water supply device is turned on again after being turned off.
An alternative embodiment further comprises opening and closing the drain means to drain the water in the treatment tub after the water supply means is opened so that the water does not reach a predetermined frequency of the inner tub.
The above embodiments may be combined in any combination as the technical conditions allow.
The invention also provides a washing and drying machine, which comprises a circulating air channel, wherein both ends of the circulating air channel are communicated with a processing barrel, a heating device and a blowing device are arranged in the circulating air channel, a water supply device introduces water flow into the circulating air channel, a rotatable inner barrel is arranged in the processing barrel, a gap is arranged between the inner barrel and the processing barrel, and the washing and drying machine further comprises a control device, wherein the control device is arranged to control the operation of the washing and drying machine according to any one or any combination of the various embodiments.
The control device presets a steam nursing program selectable by a user, and after the steam nursing program is started, the control device controls the operation of the washing and drying machine at least according to any one or any combination of the various embodiments.
According to the washing and drying machine and the control method thereof, the basic configuration of the machine can be utilized, steam can be generated without adding a special steam generating device, and steam care can be carried out on clothes. Moreover, because the flow rate of the hot air passing through the circulating air duct is high, the flow is large, the heat is concentrated, the effect on water evaporation is good, and therefore, the steam quantity which can be generated in unit time is large, and the nursing effect on clothes is good. The diffusion area of water flow introduced along the wall of the treatment barrel is large, and the contact area with hot air is large, so that the steam quantity generated in unit time is also large.
Some specific embodiments of the invention will be illustrated below with reference to the accompanying drawings.
[ Description of the drawings ]
FIG. 1 is a schematic view of a washer-dryer;
Fig. 2 is a flowchart of at least part of the steps of a control method of steam care of laundry by the washing and drying machine.
[ Detailed description ] of the invention
As shown in fig. 1, the washing and drying machine 100 includes a treating tub 2, an inner tub 4 rotatably provided in the treating tub 2. There is a gap between the inner tub 4 and the processing tub 2. The inner tub 4 has fine through holes in the tub wall so that water and air can circulate between the inner tub 4 and the treating tub 2. The bottom of the treatment barrel 2 is communicated with a drainage device 6. The drain device 6 includes a drain line 61 and a drain pump 62 provided on the drain line 61.
The washer-dryer 100 further comprises a sensor 7 for detecting a parameter related to the amount of water in the treatment tub 2. The water quantity related parameter may be water inflow, water level, water pressure, etc. The sensor 7 may be mounted in a variety of positions. In the embodiment shown in fig. 1, the sensor 7 is mounted at the bottom of the treatment tank 2, and in particular, a water pressure sensor can be used to obtain the relative height of the water level. In other embodiments, a sensor for sensing the position of the water level may be provided at a position corresponding to the target water level on the wall of the treatment tub 2.
The washer-dryer 100 further comprises a circulation duct 8. Both ends of the circulating air duct 8 are communicated with the processing barrel 2. The circulating air duct 8 is provided with a heating device 1 and a blowing device 3. In the embodiment shown in fig. 1, the circulation duct 8 contains a heat exchange zone 81, and the water supply device 5 sprays water onto the wall of the heat exchange zone 81. In this embodiment, the water supply device 5 includes a first water supply device 51 and a second water supply device 52. Wherein the first water supply device 51 has a large unit flow rate for washing the lint attached to the heat exchange area 81 and the area below it. The second water supply device 52 has a small unit flow rate, and is opened to supply water for heat exchange with hot and humid air during drying, thereby drying laundry.
In other embodiments, the water supply 5 may comprise only one water supply.
In other embodiments, the water supply device 5 may be located in other areas, spraying water to other locations, for example, may be located near the air blowing device 3, so that water is sprayed to the air blowing device 3, which may be used to wash lint attached to the air blowing device 3, for example, may be located near the heating device 1, and may be provided along the tub wall of the treatment tub 2, introducing water flow along the tub wall of the treatment tub 2, and providing water for heat exchange with hot and humid air for drying laundry in a general drying procedure.
The washing and drying machine 100 further includes a control device 10 which can control, for example, the heating device 1, the blowing device 3, the water supply device 5, the drain pump 62, etc., according to program settings, thereby performing various treatments on laundry, such as washing, drying, steam treatment, etc.
A user-selectable steam care program is preset in the control device 10. After the steam care program is started, the control device controls the operation of the washing and drying machine 100, and steam St is applied to the clothes in the inner tub 4, so that the clothes achieve the effects of removing wrinkles, sterilizing, deodorizing and the like. The steam nursing program can independently operate to care the dried clothes put into the inner tub 4, and can also operate after other programs, such as a drying program, so as to achieve better wrinkle removal effect of the clothes or reduce a large amount of wrinkles generated by long-term non-taking out of the dried clothes.
The control method of the steam care of the washing and drying machine will be described in detail. The various embodiments described hereinafter are not intended to be exhaustive of all embodiments within the technical spirit of the invention.
As shown in fig. 2, the control method of the washing and drying machine for steam care of clothes at least comprises the following steps:
Step S101, enabling the air blowing device 3 to rotate at a first rotation speed, and enabling air flow to be generated in the circulating air duct 8, wherein the air flow circularly flows in the circulating air duct 8 and the treatment barrel 2;
Step S102, starting and controlling the heating device 1, heating the air flow passing through the heating device 1, and enabling the temperature of the air downstream of the heating device 1 to reach a first temperature;
step three S103, the water supply device 5 is turned on, so that the water flow exchanges heat with the air flow heated by the heating device 1 and at least part of the water flow is evaporated into steam St.
The steam St flows through the laundry in the inner tub 4 with the air flow, thereby generating care effects of removing wrinkles, sterilizing, deodorizing, etc. to the laundry.
In an alternative embodiment, step three is followed by step four S104 of rotating the inner tub at a high speed. In this step, the inner tub 4 is rotated at a first rotational speed, wherein the first rotational speed is equal to or greater than the minimum dehydrating rotational speed. For example, if the preset spin rate of the particular washer-dryer 100 including the control step is between 800 and 1200 revolutions per minute, the first rotational speed in the fourth step is set to at least 800 revolutions per minute.
Since the water supplied from the water supply device 5 to the circulation duct 8 or the treating tub 2 eventually reaches the bottom of the treating tub 2. When the inner tub 4 rotates at the above-mentioned rotation speed, the air flow is driven to flow, and especially, the air flow between the inner tub 4 and the treatment tub 2 pushes the water at the bottom of the treatment tub 2 to form a water film on the surface of the treatment tub 2. The water film is vaporized after contacting with hot air to obtain steam, so that the way of steam generation is increased, and the steam concentration is improved.
After the water supply device 5 is turned on, the water level supplied from the water supply device 5, which finally enters the treatment tub 2, is detected, and when the water level reaches a first predetermined water level L1, the inner tub 4 is rotated at a first rotational speed. Wherein the first predetermined water level L1 is less than or equal to the water level at which the water surface just reaches the outer surface of the inner tub 4.
Wherein the detection of the water level supplied by the water supply means 5, which eventually enters the treatment tub 2, may be obtained by direct means, such as by providing a sensor for sensing the arrival of the water surface at a predetermined water level height position on the tub wall of the treatment tub 2, or by indirect means, such as by using a pressure sensor, which detects the water pressure in real time, corresponding to the respective predetermined water level when the water pressure reaches a predetermined level. The water levels mentioned below all apply to the embodiments described in this paragraph.
The first predetermined water level L1 is less than or equal to a water level at which the water surface just reaches the outer surface of the inner tub 4, so that the water does not wet the laundry in the inner tub 4. Meanwhile, the first predetermined water level L1 is preferably set such that the water surface just touches the outer surface of the inner tub 4 or is very close to the outer surface of the inner tub 4. The water can be driven to be more, and the height of the surface of the treatment barrel 2 reached by the water is higher, so that a water film with larger area is formed, and a larger amount of steam is provided.
In order to prevent the inner tub 4 from being pressed against each other by the laundry rotated at the dehydrating rotation speed for a long period of time to generate new wrinkles, the inner tub 4 is rotated at the first rotation speed for a first predetermined period of time and then is switched to be rotated at the second rotation speed. Wherein the second rotational speed is set to be less than the minimum dehydrating rotational speed, and the laundry may be turned over at the second rotational speed. It can be seen that the second rotation speed is less than the centrifugal rotation speed at which the laundry sticks to the tub, and the laundry can turn over in the inner tub 4, so that each part is fully contacted with steam, and meanwhile, the whole laundry is looser, and wrinkles are reduced. The second rotational speed may be obtained in advance through experiments.
Wherein, when the inner barrel 4 rotates at a first rotating speed, the inner barrel 4 rotates in a single direction, and when the inner barrel 4 rotates at a second rotating speed, the inner barrel rotates alternately in two directions. The alternate rotation can better prevent the clothes from being entangled, so that the clothes can be fully overturned and shaken loose.
The rotation of the inner tub 4 at the first rotation speed may be performed only once, or the rotation of the inner tub 4 at the first rotation speed and the rotation at the second rotation speed may be alternately performed. If the inner tub 4 is rotated at the first rotational speed and the second rotational speed alternately, the duration of the first rotational speed is preferably set to be short, and the possibility of wrinkles due to centrifugal extrusion of the laundry with respect to each other is reduced. The intermittent rotation of the inner tub 4 at the first rotational speed has an advantage in that a water film is generated on the wall of the treating tub 2 and a new water film is continuously generated after the evaporation of the water film, thereby continuously generating steam in this way.
The first temperature used in step S102 is the highest safe temperature for the fabric. This temperature can be obtained by a temperature sensor 9 shown in fig. 1, which is provided downstream of the heating device 1 in the air flow direction. The first temperature is set higher, so that the higher temperature is quickly obtained in the space where the air flows, and the evaporation efficiency is improved.
In addition, after a predetermined time or a predetermined period of time when the heating device 1 is turned on, the heating device 1 is controlled so that the temperature of the air downstream of the heating device 1 is reduced to the second temperature. Therefore, the clothes can be better cared, and the damage of the clothes caused by long-term high temperature is avoided.
The preferred embodiment further comprises, after the water supply means 5 is turned on, turning the water supply means 5 on and off at a preset frequency, and keeping the air blowing means 3 and the heating means 1 on during the time the water supply means 5 is turned off. After the water supply device 5 is turned on, water may form a water film on the surface of the circulation duct 8 and/or the treatment tub 2. After the water supply device 5 is turned off, the circulated hot air can heat and evaporate the water film. After the water film is evaporated, the water supply device 5 is turned on again to generate a new water film. So that water can be saved and waste of water generated by continuous water supply of the water supply device 5 can be avoided.
When the water supply device 5 includes a first water supply device 51 of a larger flow rate and a second water supply device 52 of a smaller flow rate, it is preferable that only the first water supply device 51 is turned on under this condition.
With the water supplied from the water supply device 5, the water level entering the treating tub 2 may rise and may enter the inner tub 4, thereby wetting the laundry in the inner tub 4. Thus, after the water supply device 5 is turned on, the water level of the treatment tub 2 is detected in real time. When the water level reaches the second predetermined water level L2, the water drain 6 is opened to drain the water in the treatment tub 2. Wherein the second predetermined water level L2 is less than the water level at which the water just reaches the outer surface of the inner tub 4. Wherein, for the control method including step four S104, the second predetermined water level L2 may be the same as the first predetermined water level L1. And the water just reaches the outer surface of the inner tub 4 is preferably used only in a scene where the inner tub 4 rotates at the first rotational speed, and in other scenes, the water surface is preferably kept at a distance from the inner tub 4 so as not to wet the laundry in the inner tub 4.
The drain device 6 is turned on for a third preset period of time, or the drain device 6 is turned off when the water level in the treatment tub 2 is detected to be equal to or less than a third predetermined water level L3. Wherein the third predetermined water level L3 is smaller than the first predetermined water level L1 and the second predetermined water level L2, and smaller parameters are preferably selected.
Alternatively, when the water level reaches the second predetermined water level L2, the water supply device 5 is turned off after the water discharge device 6 is turned on or while the water discharge device 6 is turned on, and when the water level is equal to or less than the third predetermined water level L3, the water supply device 5 is turned on again. The blower 3 and the heater 1 are kept on until the water supply device 5 is turned on again after being turned off.
In other alternative embodiments, the opening or non-opening of the water discharging device 6 is not determined according to the water level, but after the water supplying device 5 is opened, the water discharging device 6 is opened and closed at a predetermined frequency such that the water cannot reach the inner tub 4 to discharge the water in the treatment tub. The predetermined frequency may be predetermined by calculating the water supply amount of the water supply device 5 or by experiments.
In the steam care program, the process of generating steam is continuously set for a long time, or the duration of the process is adjusted according to the detected air humidity in the treatment barrel 2 or the circulating air duct 8. And then optionally enter the processes of dehumidification, temperature reduction, maintenance and the like.
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 (17)
1. A control method for steam care of clothes by a washing and drying machine, wherein the washing and drying machine (100) comprises a circulating air channel (8) with two ends communicated with a processing barrel (2), a heating device (1) and a blowing device (3) are arranged in the circulating air channel, a water supply device (5) introduces water flow into the circulating air channel or along the barrel wall of the processing barrel, a rotatable inner barrel (4) is arranged in the processing barrel, and a gap is arranged between the inner barrel and the processing barrel, and the control method is characterized by comprising the following steps:
Step one (S101), enabling the air blowing device to rotate at a first rotation speed, and enabling air flow to be generated in the circulating air duct, wherein the air flow circularly flows in the circulating air duct and the treatment barrel;
Step two (S102), starting and controlling the heating device, heating the air flow passing through the heating device, and enabling the temperature of the air downstream of the heating device to reach a first temperature;
and step three (S103), the water supply device is started, so that the water flow exchanges heat with the air flow heated by the heating device and at least part of the water flow is evaporated into steam.
2. The method of claim 1, wherein the inner tub is rotated at a first rotational speed after the water supply is turned on, and wherein the first rotational speed is greater than or equal to a minimum dehydration rotational speed.
3. The control method according to claim 2, wherein after the water supply means is turned on, the water level supplied from the water supply means is detected and finally introduced into the treatment tub, and when the water level reaches a first predetermined water level, the inner tub is rotated at a first rotational speed, wherein the first predetermined water level is equal to or less than a water level at which the water level just reaches the outer surface of the inner tub.
4. The control method of claim 2, wherein the inner tub is rotated at the first rotational speed for a first predetermined period of time and then is switched to be rotated at a second rotational speed, wherein the second rotational speed is set to be less than the minimum dehydrating rotational speed, and the laundry is turned over at the second rotational speed.
5. The method of claim 4, wherein the inner tub rotates in a single direction when rotated at a first rotational speed and the inner tub rotates alternately in both directions when rotated at a second rotational speed.
6. The method of claim 4, wherein the inner tub rotates alternately at the first rotational speed and the second rotational speed.
7. The method of claim 1, wherein the first temperature is a maximum safe temperature for the fabric.
8. The method of claim 7, wherein the heating means is controlled to decrease the temperature of the air downstream of the heating means to the second temperature after a predetermined time or period of turning on the heating means.
9. The control method according to claim 1, wherein the water supply means is turned on and off at a predetermined frequency after the water supply means is turned on, and the blower means and the heating means are kept on during the time when the water supply means is turned off.
10. The method of claim 1, wherein the water supply means comprises a first water supply means having a larger flow rate and a second water supply means having a smaller flow rate, and wherein only the first water supply means is turned on.
11. The method of claim 1, wherein the circulating air duct includes a heat exchange area, and the water supply device sprays water to a wall of the heat exchange area.
12. The control method according to claim 1, wherein the water level of the treatment tub is detected after the water supply means is turned on, and the water discharge means is turned on to discharge the water in the treatment tub when the water level reaches a second predetermined level, which is less than the water level at which the water just reaches the outer surface of the inner tub.
13. The method of claim 12, wherein the drain is turned on for a third predetermined period of time or turned off when the water level in the treatment tank is detected to be less than or equal to a third predetermined level.
14. The method of controlling according to claim 13, wherein the water supply means is turned off when the water level reaches the second predetermined level, and the water supply means is turned on again when the water level is equal to or lower than the third predetermined level, and the blower means and the heating means are kept on until the water supply means is turned on again after the water supply means is turned off.
15. The control method according to claim 1, wherein after the water supply means is turned on, the water discharge means is turned on and off at a predetermined frequency such that water does not reach the inner tub to discharge the water in the treatment tub.
16. The washing and drying machine comprises a circulating air duct (8) with two ends communicated with a processing barrel (2), a heating device (1) and a blowing device (3) are arranged in the circulating air duct, a water supply device (5) introduces water flow into the circulating air duct, a rotatable inner barrel (4) is arranged in the processing barrel, a gap is arranged between the inner barrel and the processing barrel, and the washing and drying machine further comprises a control device (10), and is characterized in that the control device is arranged to control the operation of the washing and drying machine according to the method of any one of claims 1-15.
17. The washer-dryer of claim 16 wherein a user selectable steam care program is preset in the control means, the control means controlling the operation of the washer-dryer at least according to any one of claims 1-14 after the steam care program is initiated.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310624303.XA CN119083116A (en) | 2023-05-30 | 2023-05-30 | Washing and drying machine and control method for steam care of clothes |
| EP24174526.4A EP4471202A1 (en) | 2023-05-30 | 2024-05-07 | A washer dryer and method of controlling the washer dryer to give steam care to the laundry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310624303.XA CN119083116A (en) | 2023-05-30 | 2023-05-30 | Washing and drying machine and control method for steam care of clothes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119083116A true CN119083116A (en) | 2024-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310624303.XA Pending CN119083116A (en) | 2023-05-30 | 2023-05-30 | Washing and drying machine and control method for steam care of clothes |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4471202A1 (en) |
| CN (1) | CN119083116A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101137335B1 (en) * | 2005-08-25 | 2012-04-19 | 엘지전자 주식회사 | operating method for laundry machine |
| EP2623664B1 (en) * | 2012-02-06 | 2019-10-02 | LG Electronics Inc. | Control method of a laundry machine with a drying duct comprising a nozzle |
| CN113605037B (en) * | 2020-10-26 | 2024-11-05 | 松下家电(中国)有限公司 | Control method of clothing care device |
-
2023
- 2023-05-30 CN CN202310624303.XA patent/CN119083116A/en active Pending
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- 2024-05-07 EP EP24174526.4A patent/EP4471202A1/en active Pending
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| Publication number | Publication date |
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| EP4471202A1 (en) | 2024-12-04 |
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