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WO2024128632A1 - Procédé de commande d'appareil de traitement de linge - Google Patents

Procédé de commande d'appareil de traitement de linge Download PDF

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Publication number
WO2024128632A1
WO2024128632A1 PCT/KR2023/019530 KR2023019530W WO2024128632A1 WO 2024128632 A1 WO2024128632 A1 WO 2024128632A1 KR 2023019530 W KR2023019530 W KR 2023019530W WO 2024128632 A1 WO2024128632 A1 WO 2024128632A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
clothing
motion
control method
rotation speed
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.)
Ceased
Application number
PCT/KR2023/019530
Other languages
English (en)
Korean (ko)
Inventor
이강훈
한인재
김성룡
김우례
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to EP23903835.9A priority Critical patent/EP4467712A4/fr
Priority to CN202380057893.0A priority patent/CN119654459A/zh
Priority to US18/833,312 priority patent/US20250109545A1/en
Publication of WO2024128632A1 publication Critical patent/WO2024128632A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/46—Control of the operating time
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • D06F58/40—Control of the initial heating of the drying chamber to its operating 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment
    • D06F58/263—Gas heating equipment
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • 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
    • D06F2105/12—Humidity or dryness of laundry
    • 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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • 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
    • D06F2105/56—Remaining operation time; Remaining operational 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
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/26—Condition of the drying air, e.g. air humidity or temperature

Definitions

  • This application relates to a control method for a clothing processing device.
  • a clothing processing device is a device that can wash and dry clothes (objects to be washed or to be dried), or is capable of washing and drying, and is a concept that includes washing machines, dryers, and dryer combination washing machines.
  • Clothing processing equipment that can dry clothes supply heated air (hot air) to the clothes. Depending on how the air that has exchanged heat with the clothes is treated, it is classified into an exhaust drying system and a circulation drying system.
  • the circulation drying system sequentially dehumidifies and heats the air discharged from the receiving space where clothes are stored and then re-supplies it to the receiving space.
  • the exhaust drying system supplies heated air to the receiving space while The air discharged from the receiving space is exhausted to the outside of the clothing treatment device.
  • any clothes processing device with any drying system will use the air supplied into the drum and the clothes. Control to increase heat exchange efficiency is a very important design consideration in clothing processing equipment aimed at drying clothes.
  • Conventional clothing treatment devices that control the rotation speed of the drum to a low level while supplying heated air to the drum may cause the clothing to shrink significantly because the clothing repeats rising and falling inside the drum.
  • Shrinkage of clothing is caused by complex factors such as the size of the external force supplied to the clothing, the dryness of the clothing, the temperature of the air supplied to the clothing, and the time the hot air is supplied to the clothing (drying time), which intensifies the shrinkage of the clothing.
  • the biggest factor that affects clothing can be seen as the size of the external force supplied to the clothing. Therefore, the conventional control method of continuously repeating the rise and fall of clothes while heated air is supplied to the drum is likely to intensify shrinkage of clothes.
  • the conventional clothing treatment device maintains clothing in close contact with the circumferential surface of the drum when heated air is supplied to the drum, thereby minimizing the external force supplied to the clothing. Since the drying mechanism of such a clothing treatment device is heat transfer through convection, drying may take a long time.
  • the method of supplying heated air while keeping the clothing in close contact with the circumferential surface of the drum involves dividing the side exposed to the air (one side of the clothing toward the center of rotation of the drum) and the side not exposed to the air (the side of the drum).
  • the degree of dryness between the surfaces in contact with the circumferential surface may vary. This not only means that the heat exchange efficiency between the air supplied to the drum and the clothes may decrease, but it also has the potential to cause damage or accelerate shrinkage of the locally heated part of the clothes.
  • drying process performed by the clothing processing device to dry clothes can be divided into a preheating period, a constant drying rate period, and a falling drying rate period. .
  • the preheating section is a section in which there is little change in dryness and the temperature of the clothing gradually increases (a section in which the temperature of the clothing gradually increases to the temperature at which moisture is discharged from the clothing), and in the constant rate section, the dryness of the clothing increases rapidly and the temperature of the clothing gradually increases.
  • the temperature of is maintained almost constant, and the lapse rate section is a section in which the dryness of the clothing hardly changes and the temperature of the clothing rapidly increases.
  • the conventional clothing treatment devices described above did not have a control method for shortening the progress time of the rate reduction section or a control method for adjusting the temperature of the air supplied to the clothing while executing the rate reduction section, so as to prevent shrinkage of clothing. It was difficult.
  • This application aims to solve the problem of providing a control method for a clothing treatment device that reduces shrinkage of clothing.
  • the present application aims to solve the problem of providing a control method for a clothing treatment device that can minimize shrinkage of clothing by controlling the external force supplied to the clothing.
  • this application aims to solve the problem of providing a control method for a clothing treatment device that can minimize shrinkage of clothing by shortening the time required to dry clothing.
  • the present application aims to solve the problem of providing a control method for a clothing treatment device that can minimize shrinkage of clothing by controlling the amount of heat energy supplied to clothing.
  • the present application relates to a control method of a clothing treatment device provided with a tub in which water is stored, a drum provided inside the tub to store clothing, and a heating unit that heats the drum by forming an eddy current in the drum. provides.
  • the control method alternately performs a stirring motion that rotates the drum at a first rotation speed that causes a centrifugal force of less than 1G, and a heat transfer motion that rotates the drum at a second rotation speed that causes a centrifugal force of 1G or more. execution stage; and a heating step of operating the heating unit to heat the drum.
  • the ratio of the execution time of the stirring motion and the execution time of the heat transfer motion may be set differently depending on the dryness of the clothes.
  • the execution time of the heat transfer motion can be set to be longer than the execution time of the stirring motion.
  • the control method may set the execution time of the stirring motion and the execution time of the heat transfer motion to be the same when the dryness of the clothes is less than a preset reference dryness.
  • the rotation direction of the drum set in the stirring motion and the rotation direction of the drum set in the heat transfer motion can be set to be the same.
  • the first rotation speed may be set to a rotation speed that causes the clothing to fall, roll, or slide from a height below the horizontal line passing through the rotation center of the drum.
  • the drying step consisting of the heating step and the heat exchange step is divided into a preheating period, a constant drying rate period, and a falling drying rate period, and the reference drying rate is the constant drying rate period. It can be set to a value between the highest and lowest dryness specified.
  • the standard dryness may be set to a dryness at which the moisture content of clothing is 30% to 20%.
  • the heating step may be initiated simultaneously with the motion executing step, or may be initiated after the motion executing step is initiated.
  • the heating step is performed before the start of the motion execution step, and the interval between the start time of the heating step and the start time of the motion execution step may be set within a preset reference time.
  • the control method may further include a dehydration step of separating water from clothes by rotating the drum at a rotation speed that causes a centrifugal force of 1G or more, which is initiated before execution of the heating step and the motion execution step.
  • the control method may further include a stirring heating step of heating the drum by operating the heater while rotating the drum at a rotation speed that causes a centrifugal force of less than 1G, which is started before the dehydration step is performed.
  • the rotation speed of the drum set in the stirring heating step may be set to less than the rotation speed of the drum set in the stirring motion.
  • the heating step may be provided to control the temperature of the drum to maintain the clothing temperature below 90 degrees Celsius.
  • the heating step may be provided to maintain the temperature of the drum below 100 degrees Celsius.
  • the control method may further include a cooling step of lowering the temperature of the clothing by rotating the drum when the heating step and the motion execution step are completed.
  • It may be set lower than the first rotation speed set in the cooling step.
  • This application provides a control method for a clothing treatment device that reduces shrinkage of clothing.
  • the present application provides a control method for a clothing treatment device that can minimize shrinkage of clothing by controlling the external force supplied to the clothing.
  • the present application provides a control method for a clothing treatment device that can minimize shrinkage of clothing by shortening the time required to dry clothing.
  • the present application provides a control method for a clothing treatment device that can minimize shrinkage of clothing by controlling the amount of heat energy supplied to clothing.
  • Figures 1 and 2 show an example of a clothing treatment device.
  • FIGS 3, 4, and 5 show examples of heating units.
  • Figure 6 shows an example of a heating step and a heat transfer step.
  • Figure 7 (a) shows an example of a stirring motion
  • Figure 7 (b) shows an example of a transfer motion
  • Figure 8 shows an example of a control method consisting of a first drying step and a second drying step.
  • the clothing treatment device 100 includes a cabinet 1 provided with an inlet 11, a tub 2 provided inside the cabinet 1 to store water, and a rotating machine inside the tub. It may be provided to include a drum 3 in which objects to be treated (hereinafter referred to as 'clothing') are accommodated.
  • 'clothing' objects to be treated
  • the inlet 11 may be provided on the front surface of the cabinet 1 and may be closed by a door 12 rotatably coupled to the cabinet 1.
  • the cabinet 1 may be provided with a control panel 13.
  • Figure 1 shows a case where the control panel 13 is located at the upper part of the inlet 11 on the front side of the cabinet 1. It is shown as an example.
  • the control panel 13 may be provided with an input unit 131 and a display unit 132.
  • the input unit 131 is a means of receiving a control command from the user
  • the display unit 132 may be provided as a means of displaying control commands selectable by the user and execution information of the control command selected by the user.
  • the tub 2 may be provided with a tub body 21 provided inside the cabinet 1 to provide a space for storing water.
  • the tub body 21 is provided as a cylinder with an empty interior, and a tub inlet 22 may be provided on one side of the cylinder.
  • the tub body 21 may be fixed inside the cabinet 1 through a support portion.
  • Figure 2 shows that the support portion is a spring 24 that connects the upper portion of the circumferential surface of the tub body 21 to the cabinet 1. ), and a damper 25 connecting the lower portion of the circumferential surface of the tub body 21 to the cabinet 1 is shown as an example.
  • the tub inlet 22 may be connected to the inlet 11 through a gasket 23.
  • the gasket 23 may be provided as a tube connecting the inlet 11 and the tub inlet 22. there is. Additionally, in order to minimize the transmission of vibration of the tub body 21 to the cabinet 1, the gasket 23 may be made of an elastic material such as rubber.
  • the drum 3 may be provided to include a drum body 31 provided inside the tub body 21 to provide a space for storing clothes.
  • the drum body 31 may be provided as a cylinder with an empty interior, and a drum inlet 32 may be provided on one side of the cylinder (the side facing the direction in which the tub inlet is located).
  • the drum body 31 is preferably made of a conductor.
  • a communication hole 33 may be provided on the circumferential surface of the drum body 31 to communicate the inside of the drum body 31 with the inside of the tub body 21, and on the circumferential surface of the drum body 31.
  • a lifter may be provided to lift clothes within the drum body 31 when the drum body 31 rotates.
  • the drum body 31 may be rotatably fixed to the tub body 21 through the driving unit 4.
  • the driving unit 4 includes a stator 41 that is fixed to the rear surface of the tub body 21 and forms a rotating field when current is supplied, and a stator 41 that rotates the tub body 21 by the rotating magnetic field. It may be provided to include a rotor 42 located externally and a rotation shaft 43 that penetrates the rear surface of the tub body 21 and connects the rotor 42 and the rear surface of the drum body 31. .
  • the tub body 21 receives water through the water supply unit 5, and the water stored in the tub body 21 may be discharged to the outside of the tub body 21 through the drain unit 6.
  • the water supply unit 5 includes a water supply pipe 52 connecting the water supply source 51 to the tub body 21, and a water supply valve ( 53) may be provided to include.
  • the drain unit 6 includes a pump 61, a first drain pipe 62 connecting the tub body 21 to the pump 61, and the water discharged from the pump 61 to the cabinet 1. It may be provided to include a second drain pipe 63 that guides to the outside of.
  • the laundry treatment device 100 may further be provided with a supply unit 7 that supplies detergent to the tub body 21.
  • the supply unit 7 may be provided to include a drawer provided to be pulled out from the front surface of the cabinet 1, and a storage space provided in the drawer to store detergent.
  • FIG. 2 shows an example where the storage space is provided to connect the water supply pipe 52 and the tub body 21.
  • the water supply pipe 52 is a first water supply pipe 521 that guides the water supplied from the water supply source 51 to the storage space, and the tub body 21 for detergent and water discharged from the storage space. It may be provided with a second water supply pipe 522 that guides to.
  • the laundry treatment device 100 may further include a heating unit 8 that heats the drum body 31.
  • the heating unit 8 is a means of heating the drum body 21 by forming an eddy current in the drum body 21 through electromagnetic induction, and an induction heater may be an example. .
  • the heating unit 8 is located on the upper part of the horizontal line (H, the horizontal line passing through the center of rotation of the drum body) passing through the center of the tub body among the circumferential surfaces of the tub body 21. It is desirable to be provided in a located space. This is because it is advantageous for heating the drum body 31 if there is no water between the heating unit 8 and the drum body 31.
  • the heating unit 8 includes a housing 81 fixed to the upper space of the tub body 21, a coil 82 fixed to the housing 81, and the housing 81. ) may be provided to include a cover 83 that is fixed to prevent exposure of the coil 82.
  • the cover 83 may be further provided with a cooling unit 84.
  • the cooling unit 84 may be provided as a fan that exhausts air in the space created by the housing 81 and the cover 83 to the outside. As shown in FIG. 5, the coil 82 is fixed to the housing 81, and the current supplied to the coil 82 can be controlled by the control unit 91.
  • the laundry treatment device 100 may further include a detection unit 92 that detects the amount of foam inside the tub body 21.
  • the detection unit 92 may be provided as a water level detection unit that detects the amount of water supplied to the tub body 21.
  • the water level sensor may include a communication pipe 921 connected to the first drain pipe 62, and a sensor 922 that generates a control signal based on the pressure inside the communication pipe 921. .
  • One end of the communication pipe 921 is connected to the first drain pipe 62, and the other end is located at a point higher than the highest water level of the tub body 21 or higher than the horizontal line H. ) It can be provided with a hose fixed inside.
  • the communication pipe 921 is closed by the sensor 922, and the water level inside the communication pipe 921 changes to be the same as the water level inside the tub body 21. Therefore, the sensor 922 can transmit a control signal corresponding to the pressure inside the communication pipe 921, which varies depending on the water level inside the tub body 21, to the control unit 91, and the control unit 91 The water level inside the tub body 21 can be determined through the control signal provided by the sensor 922.
  • the control unit ( 91) will be able to estimate whether bubbles have been generated in the tub body 21 and the amount of bubbles.
  • the detection unit 92 may be provided as a current amount detection unit that detects the amount of current supplied to the stator 41 or a rotation speed detection unit that detects the rotation speed of the drum body 31. .
  • the control unit 91 can estimate whether foam has been generated in the tub body 21 and the amount of foam through the control signal provided by the current amount sensor or the rotation speed sensor.
  • the laundry treatment device 100 may further be provided with a temperature sensing unit 93 that measures the temperature inside the tub body 21.
  • Figure 2 shows an example where the temperature sensing unit 93 is fixed to the upper space of the circumferential surface of the tub body 21 and is provided to sense the temperature between the tub body 21 and the drum body 31. It is shown.
  • Figure 6 shows an example of a control method of a clothing treatment device to minimize shrinkage of clothing.
  • the control method may be provided to sequentially execute the first drying step (S10) and the second drying step (S20), or may be provided to execute only the second drying step (S20).
  • the second drying step (S20) includes a heating step (S21) of operating the heating unit 8 to heat the drum body 31, and transferring the heat energy of the drum body 31 to the clothing. It may be provided to include a motion execution step (S22) of moving the inside of the drum body.
  • the motion execution step (S22) is a stirring motion (M1) that rotates the drum body 31 at a first rotation speed at which a centrifugal force of less than 1G is induced, and a second rotation speed at which a centrifugal force of 1G or more is induced. It is provided to alternately execute the heat transfer motion (M2) that rotates (31).
  • the stirring motion (M1) is a motion that rotates the drum body 21 at a rotation speed at which a centrifugal force of less than 1G is generated on the clothes, and the stirring motion (M1) is executed.
  • the clothing will undergo a movement of repeated rising and falling inside the drum body 31.
  • the heat transfer motion (M2) is a motion that rotates the drum body 21 at a rotation speed at which a centrifugal force of 1G or more is generated on the clothing.
  • the clothing is shown in FIG. 7 (b). As described above, it will rotate in close contact with the circumferential surface of the drum body 31.
  • the heat transfer motion (M2) is a motion for transferring heat energy to clothing through heat conduction
  • the stirring motion (M1) is a motion for transferring heat energy to the clothing through heat conduction. It is a motion that transfers heat energy to the clothing through heat conduction and change of the area of the clothing in contact with the circumferential surface of (31). That is, the stirring motion (M1) changes the area of the clothing in contact with the drum body to induce thermal energy to be evenly supplied to all areas of the clothing, and the heat transfer motion (M2) changes the area of the clothing in contact with the drum body. It quickly supplies heat energy.
  • the second drying step (S20) transfers heat energy to clothes through conduction, it is possible to supply heat edges to clothes more effectively than the conventional method of supplying heat energy to clothes through air convection.
  • the first rotation speed set in the stirring motion (M1) may be set to the rotation speed that causes the clothes to fall from the upper part of the horizontal line (H) passing through the rotation center of the drum, or may be set to the rotation speed that causes the clothes to fall near the horizontal line (H). It can also be set to the number of revolutions. Considering the tendency that the smaller the external force supplied to the clothing, the lower the possibility of shrinkage of the clothing, the first number of rotations is the number of rotations that causes the clothing to fall from the height of the horizontal line (H) or from a height lower than the horizontal line (H). It is desirable to set it.
  • the rotation direction of the drum in the stirring motion (M1) and the rotation direction of the drum in the heat transfer motion (M2) are set to be the same.
  • the motion is switched when the rotation directions of the two motions are set to be the same. This is because it is possible to minimize the time and energy required and the vibration of the drum body.
  • the ratio (T1:T2) of the execution time (T1) of the stirring motion and the execution time (T2) of the heat transfer motion is preferably set differently depending on the dryness of the clothes.
  • the drying stage of clothing is divided into a preheating period (S201), a constant drying rate period (S202), and a falling drying rate period (S203).
  • the preheating section (S201) is a section in which there is little change in dryness (a section in which there is almost no change in moisture content), and the constant rate section (S202) is a section in which the dryness of clothes rapidly increases (a section in which the moisture content decreases rapidly),
  • the rate reduction section (S203) is a section in which the dryness of the clothing remains almost unchanged and the temperature of the clothing rapidly increases.
  • the preheating section (S201) since the moisture contained in the clothing is high, even if the number of times the clothing is dropped, it does not significantly affect the shrinkage of the clothing. However, since the constant rate section (S202) and the reduced rate section (S203) contain little moisture in the clothing, shrinkage of the clothing may intensify as the number of falls increases. Therefore, in the motion execution step (S22), as the dryness of the clothes increases (as the moisture content decreases), the execution time (T2) of the heat transfer motion may be set to be longer than the execution time (T1) of the stirring motion.
  • Figure 8 shows that if the dryness of the clothes is less than the preset standard dryness, the execution time (T1) of the stirring motion and the execution time (T2) of the heat transfer motion are set to be the same, and the dryness of the clothes is set to the standard dryness.
  • T1 of the stirring motion and T2 of the heat transfer motion are set to be the same, and the dryness of the clothes is set to the standard dryness.
  • T2 of the heat transfer motion is set to be longer than the execution time (T1) of the stirring motion.
  • the execution time (T1) of the stirring motion may be set longer than the execution time (T2) of the heat transfer motion.
  • the execution time (T2) of the heat transfer motion is shortened while the clothes do not reach the standard dryness, the time of the preheating section (S201) is delayed, resulting in the progress of the second drying step (S20). Problems with increasing time may occur.
  • the reference dryness may be set to the dryness (or moisture content) at which the clothing enters the constant rate section (S202).
  • Figure 8 shows that the reference dryness is when the moisture content of the clothing is 30% to 20%. This shows an example where dryness is set to %.
  • the heating step (S21) may be started simultaneously with the motion execution step (S22) or may be provided to be started after the motion execution step (S22) is started. This is because if the heating unit 8 operates while the drum body 31 does not rotate, there is a possibility that clothing may be damaged. Therefore, if the heating step (S21) is started before the start of the motion execution step (S22), the interval between the start time of the heating step (S21) and the start time of the motion execution step (S22) is preset. It is desirable to set it within the standard time.
  • the reference time may be set by the control unit 91 according to the type of clothing. That is, when the user selects the type of clothing to be dried through the input unit 131, the control unit 91 can set the reference time differently depending on the type of clothing. It is preferable that the standard time is set shorter for clothing with less durability.
  • control method may further include a first drying step (S10).
  • the first drying step (S10) may be comprised of a stirring heating step (S11) and a dehydration step (S12) performed sequentially before the start of the second drying step (S20), or may be comprised of only the dehydration step (S12). It could be.
  • the dehydration step (S12) is a step of separating water from clothes by rotating only the drum body 31 at dehydration rotation speed without operating the heating unit 8.
  • the dehydration rotation speed is a rotation speed that causes centrifugal force of 1G or more to the clothes, and is preferably set to a rotation speed higher than the second rotation speed.
  • the control method can reduce the water contained in the clothing through the dehydration step (S12). Through this, the control method can shorten the execution time of the second drying step (S20). Since the shortening of the second drying time (S20) means that the time that the clothes are exposed to high temperature in the second half of the constant rate section (S202) and the reduced rate section (S203) is shortened, the control provided with the dehydration step (S12) This method can more effectively prevent shrinkage of clothing.
  • the first drying step (S10) may further include a stirring and heating step (S11) performed before the dehydration step (S12).
  • the stirring heating step (S11) is a step of operating the heating unit 8 while rotating the drum body 31 at a rotation speed at which a centrifugal force of less than 1G is induced on the clothes.
  • the rotation speed of the drum body 31 set in the stirring and heating step (S11) may be set to be the same as the first rotation speed, or may be set to a rotation speed lower than the first rotation speed. However, if the rotation speed of the drum body set in the stirring and heating step (S11) is set lower than the first rotation speed, the clothes roll or slide along the circumferential surface of the drum body 31, which causes The effect of increasing the time the clothing is in contact with the drum body 31 can be expected (the effect of quickly increasing the temperature of the clothing).
  • control method can control the temperature of the drum body 31 so that the temperature of the clothes is maintained below 90 degrees Celsius in the second drying step (S20).
  • Conventional clothing treatment devices supply heated air to the drum body, and the clothing exchanges heat with the air through convection, making it difficult to control the temperature of the clothing.
  • the clothing treatment device 100 heats the drum body 31 through the heating unit 8 and the clothing is heated through conduction heat transfer, the temperature of the clothing can be changed relatively easily.
  • An example of a method of maintaining the temperature of clothing below 90 degrees Celsius may be maintaining the temperature of the drum body 31 below 100 degrees Celsius.
  • control method may be further equipped to include a laundry weight determination step of determining the amount of clothing put into the drum body 31, and a temperature setting step of setting the maximum temperature of the drum body 31 according to the laundry weight. there is.
  • the maximum temperature determined in the temperature setting step is preferably set to a temperature where the temperature inside the tub is 90 degrees Celsius or less, and the temperature inside the tub 2 can be measured through the temperature sensing unit 93. there is.
  • the cooling step (S30) is a step in which the temperature of the clothing is lowered by rotating only the drum body 31 without operating the heating unit 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

La présente demande concerne un procédé de commande d'un appareil de traitement de linge, le procédé comprenant : une étape de chauffage consistant à chauffer un tambour au moyen d'une unité de chauffage qui induit un courant de Foucault dans le tambour ; et une étape d'exécution de mouvement consistant à exécuter en alternance un mouvement d'agitation qui fait tourner le tambour à une première vitesse de rotation qui provoque une force centrifuge inférieure à 1G, et un mouvement de transfert de chaleur qui fait tourner le tambour à une seconde vitesse de rotation qui induit une force centrifuge supérieure ou égale à 1G, le rapport entre le temps d'exécution du mouvement d'agitation et le temps d'exécution du mouvement de transfert de chaleur étant réglé différemment en fonction du séchage du linge.
PCT/KR2023/019530 2022-12-15 2023-11-30 Procédé de commande d'appareil de traitement de linge Ceased WO2024128632A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP23903835.9A EP4467712A4 (fr) 2022-12-15 2023-11-30 Procédé de commande d'appareil de traitement de linge
CN202380057893.0A CN119654459A (zh) 2022-12-15 2023-11-30 衣物处理装置的控制方法
US18/833,312 US20250109545A1 (en) 2022-12-15 2023-11-30 Method for controlling laundry treatment apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220175595A KR102824495B1 (ko) 2022-12-15 2022-12-15 의류처리장치의 제어방법
KR10-2022-0175595 2022-12-15

Publications (1)

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WO2024128632A1 true WO2024128632A1 (fr) 2024-06-20

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PCT/KR2023/019530 Ceased WO2024128632A1 (fr) 2022-12-15 2023-11-30 Procédé de commande d'appareil de traitement de linge

Country Status (5)

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US (1) US20250109545A1 (fr)
EP (1) EP4467712A4 (fr)
KR (1) KR102824495B1 (fr)
CN (1) CN119654459A (fr)
WO (1) WO2024128632A1 (fr)

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Publication number Priority date Publication date Assignee Title
JP2005323697A (ja) * 2004-05-12 2005-11-24 Sanyo Electric Co Ltd 洗濯乾燥機および洗濯機
JP2006158489A (ja) * 2004-12-03 2006-06-22 Matsushita Electric Ind Co Ltd ドラム式衣類乾燥機
KR20190065151A (ko) * 2017-12-01 2019-06-11 엘지전자 주식회사 건조기 및 그 제어방법
KR20190103879A (ko) * 2018-02-28 2019-09-05 엘지전자 주식회사 건조기 및 그 제어방법
KR20220031304A (ko) * 2020-09-04 2022-03-11 엘지전자 주식회사 의류처리장치 및 의류처리장치의 제어방법

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KR100803119B1 (ko) * 2003-08-26 2008-02-14 엘지전자 주식회사 건조 겸용 드럼세탁기의 건조행정 제어방법
KR102572272B1 (ko) * 2016-08-25 2023-08-29 엘지전자 주식회사 의류처리장치
KR102526715B1 (ko) * 2018-02-23 2023-04-28 엘지전자 주식회사 세탁기
KR102758942B1 (ko) * 2021-04-19 2025-01-24 엘지전자 주식회사 의류처리장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005323697A (ja) * 2004-05-12 2005-11-24 Sanyo Electric Co Ltd 洗濯乾燥機および洗濯機
JP2006158489A (ja) * 2004-12-03 2006-06-22 Matsushita Electric Ind Co Ltd ドラム式衣類乾燥機
KR20190065151A (ko) * 2017-12-01 2019-06-11 엘지전자 주식회사 건조기 및 그 제어방법
KR20190103879A (ko) * 2018-02-28 2019-09-05 엘지전자 주식회사 건조기 및 그 제어방법
KR20220031304A (ko) * 2020-09-04 2022-03-11 엘지전자 주식회사 의류처리장치 및 의류처리장치의 제어방법

Non-Patent Citations (1)

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Title
See also references of EP4467712A4 *

Also Published As

Publication number Publication date
KR20240092838A (ko) 2024-06-24
CN119654459A (zh) 2025-03-18
US20250109545A1 (en) 2025-04-03
EP4467712A1 (fr) 2024-11-27
EP4467712A4 (fr) 2025-04-02
KR102824495B1 (ko) 2025-06-24

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