[go: up one dir, main page]

EP4394118A1 - Vorrichtung zur behandlung von kleidung - Google Patents

Vorrichtung zur behandlung von kleidung Download PDF

Info

Publication number
EP4394118A1
EP4394118A1 EP22861667.8A EP22861667A EP4394118A1 EP 4394118 A1 EP4394118 A1 EP 4394118A1 EP 22861667 A EP22861667 A EP 22861667A EP 4394118 A1 EP4394118 A1 EP 4394118A1
Authority
EP
European Patent Office
Prior art keywords
drum
laundry
period
speed
motion
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.)
Pending
Application number
EP22861667.8A
Other languages
English (en)
French (fr)
Inventor
Yeonju LEE
Jongmin Lee
Minji Kim
Woonje Choe
Taewoong Kim
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
Publication of EP4394118A1 publication Critical patent/EP4394118A1/de
Pending legal-status Critical Current

Links

Images

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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D06F58/08—Driving 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
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • 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
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/50—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
    • 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
    • D06F2105/16—Air properties
    • D06F2105/24—Flow or velocity
    • 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

Definitions

  • FIG. 1 is a view illustrating a structure of a laundry treating apparatus that may perform an existing drying cycle.
  • the existing dryer is constructed to fix the driver 3 to the bottom surface 12 of the cabinet 1, or to a base or the like fixed to the bottom surface of the cabinet 1 under the drum 2. Because the driver 3 is not disposed in parallel with a rotation shaft of the drum 2, such dryer rotates the drum 2 by additionally using a separate component.
  • such dryer has a problem in that a rotational acceleration of the motor 34 is limited to a level equal to or lower than a predetermined level, and has a fundamental limit that the motor 34 should slowly accelerate or decelerate such that the belt 36 does not slip when the drum 2 is rotated.
  • the tumbling motion is a motion of rotating the drum such that the laundry ascends upwardly of a central area of the drum and then falls from an area lower than a high point of the drum to a lower portion of the drum.
  • the drum is rotated at a speed equal to or lower than 1G in a certain direction, and the laundry is repeatedly exposed in the greatest area size to hot air while being attached to an inner wall of the drum and then spaced apart therefrom and falling, so that the tumbling motion corresponds to a motion with the highest drying efficiency.
  • the present disclosure is to provide a drum rotation motion that may prevent shrinkage of laundry by alleviating a falling impact of the laundry during a drying cycle process.
  • the rolling motion may be intensively applied in a falling-rate drying period in which drying of the laundry has been significantly advanced.
  • the present disclosure may maintain the volume of the laundry by reducing the mechanical force transferred to the laundry at the time when the air gap is generated inside the laundry as drying the laundry progresses.
  • the driver may include a drum rotating shaft 6341 connected to the drum 200 to rotate the drum 200.
  • a filter (not shown) may be installed in the duct communication hole 417 to filter lint or foreign substances with large particles generated from the laundry.
  • the filter may filter air discharged from the drum 200 to prevent the foreign substances from being accumulated in the laundry treating apparatus, and may prevent the foreign substances from being accumulated to prevent air circulation.
  • the drum 200 When the drum 200 is rotated by the driver, the drum 200 may be supported by the drum rotating shaft 6341 connected thereto from the rear.
  • a load imposed on the drum rotating shaft 6341 by the laundry may be increased. Accordingly, the drum rotating shaft 6341 may be at a risk of being bent by the load.
  • the support wheel 415 supports a front lower portion of the drum 200
  • the load applied to the drum rotating shaft 6341 may be reduced. Accordingly, the drum rotating shaft 6341 may be prevented from being bent, and noise may be prevented from occurring due to vibration.
  • the support wheels 415 may be disposed at locations symmetrical to each other with respect to a center of rotation of the drum 200 to support the load of the drum 200. It is preferable that the support wheels 415 are respectively disposed at left and right lower portions of the drum 200 to support the drum 200. However, the present disclosure may not be limited thereto, and a greater number of support wheels 415 may be disposed depending on an operating environment of the drum 200.
  • the circulation flow channel 820 disposed in the base 800 may form a flow channel for circulating air inside the drum 200 and then injecting air into the drum 200.
  • the circulation flow channel 820 may include an inlet duct 821 through which air discharged from the drum 200 is introduced, a discharge duct 823 for supplying air to the drum 200, and a flow duct 822 for connecting the inlet duct 821 with the discharge duct 823.
  • the discharge duct 823 may further include a blower 8231 for discharging air to the outside of the circulation flow channel 820.
  • the blower 8231 may be disposed at a rear side of the discharge duct 823. Air discharged via the blower 8231 may flow to the drum 200.
  • the first heat exchanger 910 and the second heat exchanger 920 may be constructed as heat exchangers through which a refrigerant flows. When they are constructed as the heat exchanges through which the refrigerant flows, the first heat exchanger 910 may be constructed as an evaporator and the second heat exchanger 920 may be constructed as a condenser. The refrigerant flowing along the first heat exchanger 910 and the second heat exchanger 920 may heat-exchange with air discharged from the drum 200.
  • the heat exchanger assembly 900 may include a circulation flow channel fan 950 installed in the circulation flow channel 820 to generate an internal air flow of the circulation flow channel 820.
  • the heat exchanger assembly 900 may further include a circulation flow channel fan motor 951 for rotating the circulation flow channel fan 950.
  • the circulation flow channel fan 950 may be rotated by receiving rotational power by the circulation flow channel fan motor 951. When the circulation flow channel fan 950 is operated, air dehumidified by the first heat exchanger 910 and heated by the second heat exchanger 920 may flow to the rear of the drum 200.
  • the circulation flow channel fan 950 may be installed in one of the inlet duct 821, the flow duct 822, and the discharge duct 823. Because the circulation flow channel fan 950 is constructed to rotate, noise may be generated when the circulation flow channel fan 950 operates. Therefore, it is preferable that the circulation flow channel fan 950 is disposed at a rear portion of the circulation flow channel 820.
  • the circulation flow channel fan 950 may be installed in the blower 8231.
  • the circulation flow channel fan motor 951 may be disposed at a rear portion of the blower 8231.
  • air in the circulation flow channel 820 may be discharged to the outside of the circulation flow channel 820 via the blower 8231.
  • the circulation flow channel 820 and the heat exchanger assembly 900 may be disposed under the drum 200.
  • the drum 200 of the laundry treating apparatus according to the present disclosure may not be indirectly rotated by being coupled to a belt or the like, but may be directly connected to the driver located at the rear of the drum 200 to be rotated. Accordingly, unlike the drum of the existing dryer is formed in a cylindrical shape with open front and rear surfaces, the rear surface of the drum of the laundry treating apparatus according to the present disclosure may be shielded and directly coupled to the driver.
  • the drum 200 may include the drum body 210 formed in the cylindrical shape to accommodate the laundry therein and the drum rear surface 220 coupled to the drum body 210 from the rear to form the rear surface of the drum.
  • the drum rear surface 220 may shield the rear surface of the drum body 210 to provide a coupling surface directly coupled to the driver. That is, the drum rear surface 220 may be connected to the driver and receive the rotational power to rotate the entire drum 200. As a result, the inlet 211 through which the laundry is input may be defined in the front surface of the drum body 210 and the rear surface of the drum body may be shielded by the drum rear surface 220.
  • the drum rear surface 220 may have a bushing 300 that connects the driver with the drum rear surface 220.
  • the bushing 300 may be disposed on the drum rear surface 220 to form a rotational center of the drum 200.
  • the bushing 300 may be integrally formed with the drum rear surface 220, but may be made of a material having greater rigidity or durability than the drum rear surface 220 to be firmly coupled to a rotating shaft transmitting the power.
  • the bushing 300 may be seated on and coupled to the drum rear surface 220 to be coaxial with the rotational center of the drum rear surface 220.
  • the drum rear surface 220 may include a suction hole 224 defined between the circumferential portion 221 and the mounting plate 222 and allowing spaces in front of and at the rear of the drum rear surface 220 to be in communication with each other. Hot air supplied via the circulation flow channel 820 may be introduced into the drum body 210 via the suction hole 224.
  • the suction hole 224 may be defined as a plurality of holes extending through the drum rear surface 220 or may be formed as a mesh.
  • the driver for rotating the drum 200 may be positioned at the rear of the rear plate 420.
  • the driver may include the motor 500 that generates the rotational power and the reducer 600 that reduces the rotational force of the motor 500 and transmits the reduced rotational force to the drum 200.
  • the motor 500 may be disposed at the rear of the rear plate 420.
  • the motor 500 may be coupled to a rear surface of the rear plate 420 via the reducer 600.
  • the reducer 600 may be fixed to the rear surface of the rear plate 420, and the motor 500 may be coupled to a rear surface of the reducer 600. That is, the rear plate 420 may provide a support surface on which the reducer 600 or the motor 500 is supported. However, the present disclosure may not be limited thereto, and the motor 500 may be coupled to the rear plate 420.
  • FIG. 7 is an exploded perspective view illustrating internal components constituting the laundry treating apparatus separated from each other.
  • the laundry treating apparatus may include the drum 200 that accommodates the laundry therein, the front plate 410 that supports the front surface of the drum, the rear plate 420 positioned at the rear of the drum, the base 800 that is disposed under the drum to provide a space in which air inside the drum is circulated or moisture contained in the air is condensed, the motor 510, 520, and 540 that is positioned at the rear of the drum and provides the rotational power to the drum, the reducer 600 that decelerates the rotation of the motor and transmits the same to the drum, and a rear cover 430 that is coupled to the rear plate 420 to prevent the motor from being exposed to the outside.
  • the base 800 may include the circulation flow channel 820 in communication with the drum 200 to receive air introduced from the drum or discharge air to the drum.
  • the front plate 410 may include a front panel 411 that forms a front surface thereof, and the input communication hole 412 defined to extend through the front panel 411 to be in communication with the drum 200.
  • the front plate 410 may have a front gasket 413 that is disposed on a rear surface of the front panel 411, and surrounds an outer side of the input communication hole 412 in a radial direction to accommodate a portion of the drum body 210 therein.
  • the front gasket 413 may rotatably support the drum body 210, and may be in contact with an outer circumferential surface or an inner circumferential surface of the inlet 211.
  • the front gasket 413 may prevent hot air inside the drum 200 from leaking to a space between the drum body 210 and the front plate 410.
  • the front gasket 413 may be made of a plastic resin-based or elastic body, and a separate sealing member may be additionally coupled to the front gasket 413 to prevent the laundry or hot air in the drum body 210 from escaping to the front plate 410.
  • the front plate 410 may include the duct communication hole 417 defined to extend through an inner circumferential surface of the input communication hole 412.
  • the front plate 410 may include the duct connection portion 416 extending downwardly of the duct communication hole 417 to form a flow channel that allows the drum body 210 and the circulation flow channel 820 to be in communication with each other.
  • the duct connection portion 416 may be in communication with the drum body 210 via the duct communication hole 417, and air discharged from the drum body 210 may be introduced into the duct connection portion 416 via the duct communication hole 417 and be guided to the circulation flow channel 820. Because air discharged from the drum body 210 is guided to the circulation flow channel 820 by the duct connection portion 416, air inside the drum may be prevented from leaking.
  • the duct connection portion 416 may have the filter (not shown) installed therein for filtering the foreign substances or the lint from air discharged from the drum 200 to prevent the foreign substances from entering the circulation flow channel 820.
  • the front plate 410 may have the support wheel 415 installed thereon that is rotatably installed on the rear surface of the front panel 411 to support the lower portion of the drum 200.
  • the support wheel 415 may support the front side of the drum 200 to prevent the rotating shaft connected to the drum from being bent.
  • the front plate 410 may have a water storage tank support hole 414 that extends through the front panel 411 and through which the water storage tank 120 (see FIG. 1 ) for storing condensate water generated during the drying process may be extended or supported.
  • the water storage tank support hole 414 is defined at an upper side, the user does not need to bend the waist when the user extends the water storage tank, thereby increasing user convenience.
  • the drum rear surface 220 may include the circumferential portion 221 connected to the drum body 210, the suction hole 224 defined inwardly of the circumferential portion 221 to extend through the drum rear surface 220, and the mounting plate 222 disposed at the rotational center of the drum rear surface 220 and coupled to the rotating shaft. Air may be introduced into the rear side of the drum via the suction hole 224.
  • the drum rear surface 220 may further include a reinforcing rib 225 extending from the circumferential portion 221 toward the center of rotation.
  • the reinforcing rib 225 may extend to avoid the suction hole 224.
  • the reinforcing rib 225 may prevent the rigidity of the drum rear surface 220 from decreasing because of the suction hole 224.
  • the reinforcing rib 225 may extend radially from an outer circumferential surface of the mounting plate 222 toward an inner circumferential surface of the circumferential portion 221.
  • the drum rear surface 220 may further include a circumferential rib 227 extending in a circumferential direction of the drum rear surface 220 to connect the reinforcing ribs 225 to each other.
  • each suction hole 224 may be defined between each reinforcing rib 225, each circumferential rib 227, and each circumferential portion 221. The reinforcing rib 225 and the circumferential rib 227 may prevent the drum rear surface 220 from being deformed even when the drum rear surface 220 receives the rotational force from the motor 500.
  • the inlet duct 821 may be in communication with the duct communication hole 417 of the front plate 410 to be in communication with the flow channel installed inside the front plate 410.
  • the flow duct 822 may extend from a distal end of the inlet duct 821 toward the rear side of the drum 200, and the discharge duct 823 may be disposed at a distal end of the flow duct 822 to guide air to the drum 200.
  • the blower 8231 may be positioned downstream of the discharge duct 823, and the blower 8231 may provide a space in which the circulation flow channel fan is installed. When the circulation fan flow fan is operated, air introduced into the inflow duct 821 may be discharged to an upper portion of the blower 8231.
  • the heat exchanger assembly may include the circulation flow channel fan motor 951 supported at the rear of the blower 8231 to rotate the circulation flow channel fan.
  • the circulation flow channel fan motor 951 may be coupled to a rear side of the blower 8231.
  • the connector 850 may be disposed on the discharge duct 823 to guide hot air heated by passing through the second heat exchanger 920 upwardly of the discharge duct 823.
  • the connector 850 may be coupled to the opening defined at an upper side of the blower 8231.
  • the connector 850 may form a flow channel therein.
  • the connector 850 may evenly guide a flow of air generated by the circulation flow channel fan to the rear plate 420. That is, the connector 850 may increase an area of the flow channel as a distance from the blower 8231 increases.
  • the rear plate 420 may include a mounting portion 425 to which the driver is coupled or supported.
  • the mounting portion 425 may extend through the rear panel 421, and may be disposed in an inner circumferential surface of the duct 423.
  • the mounting portion 425 may be spaced inwardly in the radial direction from the inner circumferential surface of the duct 423.
  • the driver may be mounted in the mounting portion 425.
  • the mounting portion 425 may support a load of the driver.
  • the driver may be connected to the drum 200 while being supported by the mounting unit 425.
  • the duct 423 may accommodate therein a portion of the drum rear surface 220.
  • the duct 423 may form the flow channel through which air flows together with the drum rear surface 220.
  • the driver may include the motor 500 that provides the power for rotating the drum 200.
  • the motor 500 may include the stator 510 for generating a rotating magnetic field and the rotor 520 rotated by the stator 510.
  • the rotor 520 may be of an outer rotor type that accommodates the stator 510 therein and rotates along a circumference of the stator 510.
  • a driving shaft may be coupled to the rotor 520 and extend through the stator 510 and the mounting portion 425 to be directly connected to the drum 200.
  • the rotor 520 may directly transmit the power for rotating the drum 200.
  • the rotor 520 may be coupled to the driving shaft via the washer 540.
  • the washer 540 may connect the driving shaft with the rotor 520. Because a contact area between the rotor 520 and the driving shaft may be increased by the washer 540, the rotation of the rotor 520 may be more effectively transmitted.
  • the reducer 600 may connect the motor 500 with the drum 200.
  • the reducer 600 may convert the power of the motor 500 to rotate the drum 200.
  • the reducer 600 may be disposed between the motor 500 and the drum 200 to receive the power from the motor 500, convert the power, and transfer the converted power to the drum 200.
  • the reducer 600 may convert an RPM of the rotor to a low RPM, increase a torque value, and transmit the torque value to the drum 200.
  • the laundry treating apparatuses having the reducer fix the reducer 600 and the motor 500 to a support body maintaining an original state without deformation even when an external force is generated.
  • a case in which the stator 510 is coupled to the rear plate 420 to support the motor 500 may be considered.
  • the drum rotating shaft may be misaligned along arrangement of the laundry.
  • the drum rotating shaft may vibrate with a vibration amplitude different from that of the stator 510 or may be inclined at a different angle. Accordingly, the drum rotating shaft and the driving shaft may not be able to remain coaxial with each other.
  • the laundry treating apparatus may couple the motor 500 to the reducer 600 to fix the same.
  • the reducer 600 itself may serve as a reference of the entire driver. That is, the reducer 600 may serve as a reference for the vibration and an inclined angle of the entire driver.
  • the first axis M1 and the second axis M2 may cross each other at the reducer 600.
  • the first axis M1 and the third axis M3 may cross each other at the mounting portion 425.
  • the reducer 600 and the motor 500 may be designed to be disposed along the first axis M1 parallel to the ground when no load is applied to the drum 200 or the motor 500 is not operated.
  • the vibration occurs in the drum 200 or the motor 500, the vibration is transmitted to the reducer 600 and the reducer 600 is inclined, so that the reducer 600 may be temporarily inclined along the second axis M2.
  • the first housing 610 may further include a coupling guide 614 for guiding the coupling of the motor.
  • the coupling guide 614 may extend from a circumferential surface of the first housing blocking body 611 in a direction away from the first housing shaft receiving portion 612.
  • the coupling guide 614 may extend from the first housing blocking body 611 to be connected to the stator coupling portion 613.
  • the coupling guide 614 may guide the location of the stator 510. Accordingly, ease of assembly may be improved.
  • the flow portion 4231 may include a flow recessed surface 4232 forming a rear surface of the flow channel through which hot air flows.
  • the flow recessed surface 4232 may be disposed to connect the flow outer circumferential portion 4231a with the flow inner circumferential portion 4231b. That is, the space through which hot air discharged from the circulation flow channel 820 flows may be defined by the flow inner circumferential portion 4231b, the flow outer circumferential portion 4231a, and the flow recessed surface 4232.
  • the laundry treating apparatus may include the connector 850 connected to the blower 8231.
  • the connector 850 may guide hot air discharged from the blower 8231 to the flow portion 4231.
  • the connector 850 may have a flow channel formed therein to guide hot air discharged from the blower 4231 to the flow portion 4231. That is, the connector 850 may form the flow channel connecting the blower 8231 with the flow portion 4231.
  • a cross-sectional area of the flow channel formed inside the connector 850 may increase in a direction away from the blower 8231.
  • the seal 450 may include the first seal 451 disposed along an outer circumference of the flow portion 4231.
  • the first seal 451 may be disposed between the drum and the outer circumference of the flow portion 4231.
  • the first seal 451 may be disposed to be in contact with both the drum rear surface 220 and the rear plate 420, thereby more effectively preventing the leakage.
  • the rotor 520 may include a rotor installation hole 524 defined at a center of the installation body 522.
  • the rotor installation hole 524 may accommodate the accommodating body 542 therein. Accordingly, the washer 540 may rotate together with the driving shaft 530 by the rotor 520 and may firmly support the coupling between the driving shaft 530 and the rotor 520. Accordingly, durability and reliability of the entire motor 500 may be secured.
  • the stator 510 may include an accommodation space 513 defined inside the main body 511 by extending through the main body 511.
  • the fixing rib 512 may include a plurality of fixing ribs spaced apart from each other at a predetermined angle with respect to the accommodation space 513 inside the main body 511, and a fixing rib hole 5121 in which a fixing member is installed may be defined inside the fixing rib 512, so that the fixing rib hole 5121 and the stator fastening hole 615 of the reducer may be coupled to each other using the fixing member such as a pin.
  • the reducer 600 itself becomes the rotational center of the driving shaft 530 and the stator 510 is directly fixed to the reducer 600, the driving shaft 530 may be blocked from being misaligned with respect to the reducer 600. As a result, the reliability of the reducer 600 may be guaranteed.
  • the laundry when the laundry is withdrawn while being immersed in water W, the laundry may partially shrink by a surface tension of the water or the like. Accordingly, when the fiber L is immersed in water W and then taken out, the diameter of the fiber may be reduced to a second diameter D2 smaller than the first diameter D1.
  • water contained in the air gap C may be evaporated to define an empty space inside the air gap C.
  • a contractile force and a restoring force for filling the suddenly recreated air gap C may occur on the fiber L.
  • the fiber L may shrink inwards.
  • the fiber L when the air gap C is removed, the fiber L may further shrink to that extent, and the diameter of the fiber L may become a third diameter D3 smaller than the second diameter D2.
  • the diameter of the fiber L of the laundry may be reduced from the first diameter D1 to the third diameter D3 in the process of drying the laundry with the laundry treating apparatus according to the present disclosure.
  • FIG. 15 illustrates a change in volume of laundry based on a change in the diameter of the fiber L.
  • a length of a portion of the laundry in which the fibers L are combined may be a first length T1
  • a thickness of the portion of the laundry may be a first diameter D1.
  • the length of the portion of the laundry may be reduced to a second length T2 smaller than the first length, and the thickness of the portion of the laundry may also become reduced to a third diameter D2 smaller than the first diameter D 1.
  • both the length and the thickness of the entire laundry may be reduced during the drying cycle process compared to those in a state before the drying.
  • fluff or the like may occur on a surface of the laundry even by small friction.
  • the frictional force may be further increased when the laundry items are rubbed against each other or the laundry is rubbed against the drum, so that the surface of the laundry may be worn out.
  • the laundry treating apparatus may perform the drying cycle to prevent not only the shrinkage of the laundry but also the wear of the laundry.
  • FIG. 16 illustrates an embodiment in which a laundry treating apparatus according to the present disclosure performs a drying cycle.
  • the control panel of the laundry treating apparatus may execute arbitrary drying course and option for performing the drying cycle for removing moisture from the laundry accommodated in the drum 200.
  • the control panel receives a selection command for selecting one of arbitrary drying courses and options via the input unit 118, and an execution command for executing the selected course and option.
  • the arbitrary drying course and option may include an algorithm that operates the driver and the heat exchanger assembly 900 to supply hot air into the drum 200 while rotating the drum 200, thereby performing the drying cycle.
  • the arbitrary drying courses and options may commonly include an air supply step S1 of supplying air to the drum 200, a rotation step S2 of rotating the drum 200 during the air supply step S1 to expose air to the laundry, and a temperature control step S3 of controlling the temperature inside the drum 200 or the temperature of the refrigerant.
  • the air supply step S1, the rotation step S2, and the temperature control step S3 may be simultaneously performed during the drying cycle.
  • the rotation step S2 and the temperature control step S3 may be performed to protect the laundry.
  • the rotation step S2 and the temperature control step S3 may be performed to perform the arbitrary drying course and option for performing the drying cycle.
  • the rotation step S2 and the temperature control step S3 may be performed to protect the laundry such as prevention of the damage to laundry, prevention of the shrinkage of laundry, and the like.
  • the rotation step S2 and the temperature control step S3 for protecting the laundry may be performed.
  • the rotation step S2 and the temperature control step S3 for protecting the laundry may be performed.
  • the air supply step S1, the rotation step S2, and the temperature controlling step S3 may be performed when the arbitrary drying course and option are performed, or when there is the fabric protection course, may be performed when the fabric protection course is performed.
  • FIG. 16 illustrates a control method of the air supply step S 1.
  • the air supply step S1 may include stopping the circulation flow fan 950 and operating the pump 861 when the first heat exchanger 910 is washed with water collected in the water collector 860.
  • the air supply step S1 may include a period in which air is not temporarily supplied to the drum 200.
  • the rotation speed and the rotation direction of the drum 200 may be changed in the rotation step S2. That is, when the air supply step S1 is performed, the control panel may drive the motor 500 to rotate the drum 200 via the reducer 600. The motor 500 may change the rotation speed and the rotation direction of the drum 200 based on the algorithm set in the arbitrary drying course and option.
  • the air supply step S1 may be divided into a preheating period A1, a constant-rate drying period A2, a falling-rate drying period A3, and a cooling period A4 based on at least one of a state of the heat exchanger assembly 900, an operation time of the heat exchanger assembly 900, the temperature of air discharged to the circulation flow channel 820, the dryness of the laundry, and an operation time of the motor 500.
  • FIG. 16 illustrates a control method of the rotation step S2.
  • the rotation step S2 may include a high-speed period H for rotating the drum 200 at the first speed at which the laundry may rotate while being attached to the inner wall of the drum 200, and a low-speed period L for rotating the drum 200 at the second speed lower than the first speed such that the laundry items are separated from the inner wall of the drum 200 and stirred whenever the drum 200 rotates.
  • the first speed may correspond to a speed of rotating the drum 200 to generate a centrifugal force of 1G or greater on the laundry or a higher speed
  • the second speed may correspond to a speed of rotating the drum 200 to generate the centrifugal force of 1G or smaller.
  • the rotation step S2 may be interrupted for a predetermined time in at least one of the preheating period A1, the constant-rate drying period A2, the falling-rate drying period A3, and the cooling period A4, but the air supply step S 1 may not be interrupted in an entirety of one of the preheating period A1, the constant-rate drying period A2, the falling-rate drying period A3, and the cooling period A4.
  • the rotation step S2 may prevent the friction or the wear of the laundry by attaching the laundry to the drum 200 via the high-speed period H, may perform the drying of the laundry via the low-speed period L, and may reduce the mechanical force applied to the laundry to prevent the shrinkage of the laundry when rotating the drum at a speed lower than the second speed.
  • the rotation step S2 may be divided into a prevention period S21, a protection period S22, a separation period S23, and an exposure period S24 based on the function of protecting the fabric.
  • the prevention step S21 may include the high-speed period H for rotating the drum at the speed equal to or higher than the first speed H1 at which the laundry rotates while being attached to the inner wall of the drum. That is, in the prevention step, the laundry rotates while being attached to the drum 200, thereby preventing the friction between the laundry items and the friction between the laundry and the drum 200.
  • the prevention step S21 may further include the low-speed period L for rotating the drum at the speed lower than the first speed H1. Accordingly, in the prevention step S21, the high-speed period H and the low-speed period L may be periodically disposed. Accordingly, the prevention step S21 may stir the laundry via the low-speed period L, thereby preventing over-drying of only a specific area of the laundry in the high-speed period H and inducing the laundry to be evenly dried.
  • the preheating period A1 ends when the temperature of the refrigerant reaches a specific temperature TC from a start temperature
  • the constant-rate drying period A2 ends when the dryness level reaches a set value c or a duration of the constant-rate drying period A2 reaches a reference duration
  • the falling-rate drying period A3 ends when the dryness level reaches a completion value e.
  • a ratio of the high-speed period H to the low-speed period L may be set to be longer than in the prevention step S22 performed in the constant-rate drying period A2 or the falling-rate drying period A3. Because the laundry is in the wet laundry state and thus is shrinking relatively much in the preheating period A1, it is necessary to expand the laundry as much as possible by arranging a lot of the high-speed periods H.
  • prevention step S22 performed in the constant-rate drying period A2 or the falling-rate drying period A3 may further increase the efficiency of drying the laundry because a ratio of the low-speed period L is higher than in the preheating period A1.
  • the rotation step S2 may perform the exposure step S24 of exposing the laundry to air by rotating the drum 200 at a speed higher than a limit speed and lower than the first speed H1.
  • the exposure step S24 may be regarded as a step for drying the laundry regardless of the protection of the laundry.
  • the exposure step S24 may be regarded as a step in which a tumbling motion, a flipping motion, and the like are performed.
  • the prevention step S21 may be performed after the completion of the exposure step S24 in the constant-rate drying period A2 or the falling-rate drying period A3. As the laundry is dried in the exposure step S24 and becomes closer to the dry laundry state, the fluff is generated on the surface of the laundry or the laundry is easy to be damaged by the friction, so that the prevention step S21 may be performed after the exposure step S24 to minimize the friction between the laundry items and the friction between the laundry and the drum.
  • the protection step S22 may be regarded as a step including the low-speed period L for rotating the drum at the speed equal to or lower than the second speed L1. Specifically, the protection step S22 may include a limit period of rotating the drum at a limit speed L3 at which the laundry is blocked from ascending higher than the drum center O.
  • the protection step S22 may correspond to reducing the falling impact applied to the laundry and also preventing the friction between the drum and the laundry.
  • the protection step S22 may prevent the shrinkage of the laundry by maintaining the air gap C in the fiber inside the laundry by minimizing the falling impact of the laundry. In addition, the protection step S22 may perform the drying of the laundry by allowing the laundry items to be stirred in the drum 200 while preventing the shrinkage of the laundry.
  • the protection step S22 may correspond to performing a rolling motion.
  • the protection step S22 is performed to maintain the air gap C of the laundry, the protection step S22 may be performed in the falling-rate drying period A3 in which drying has been considerably performed.
  • the rotation step S2 may further include a separation step S23 of periodically repeating a process of rotating the drum at the first speed H1 or the second speed L1, then rotating the drum at the increased speed, and then rotating the drum at the decreased speed.
  • continuously heated air may be introduced into the drum 200 because of the operation of the compressor 930 and the circulation flow fan 950.
  • the temperature inside the drum 200 may gradually increase and the moisture may be evaporated from the laundry.
  • a portion that has not been dried completely in the laundry may be exposed inside the drum 200 by the rotation of the drum 200, and thus may be prevented from not being dried.
  • a waiting step of waiting as it is for a predetermined time after the rotation step S2 ends may be further performed in the cooling period A4. That is, in a last period of the cooling period A4, only the circulation flow channel fan 950 may operate without the rotation of the drum 200 to allow only cold air to flow into the drum 200 or the circulation flow channel fan 950 may also not operate and the laundry may be left to be naturally cooled.
  • the laundry treating apparatus may further perform the temperature control step S3 during the air supply step S1 and the rotation step S2.
  • the first step S31 may be performed.
  • the compressor 930 may operate by accelerating to the heating RPM rpm_H, and the heating RPM may correspond to a maximum RPM that the compressor 930 may reach during the drying cycle. Accordingly, the temperature of the refrigerant may be rapidly increased in the preheating period A1.
  • the temperature of the drum 200 may be prevented from rising in the constant-rate drying period A2.
  • the drum 200 may rotate in either a clockwise direction or a counterclockwise direction as long as the drum 200 rotates at the second speed L1.
  • the rotation direction of the drum 200 may be maintained without changing, thereby reducing the load applied to the motor 500 and preventing the laundry from being suddenly twisted or agglomerated.
  • the motor 500 may freely change the rotation direction and the rotation speed of the drum 200.
  • the pulling motion of periodically repeating the process of rotating the drum 200 at the second speed L1 for a preparation time and then rotating the drum 200 at the first speed H1 for an expansion time may be performed.
  • the laundry may repeat the process of being pulled during the expansion time, then changing in portion to be pulled during the preparation time, and then being pulled again during the expansion time.
  • an effect of expanding the shrunk laundry or pulling the laundry in advance so as not to be shrunk may be derived.
  • the rotating of the drum at the third speed L2 during the waiting time in the pulling motion may be performed after the drum decelerates from the first speed H1 to the second speed L1. Accordingly, the drum 200 may rotate at the first speed H1, then decelerate to the second speed L1, and then decelerate to the third speed L2. As a result, the time during which the rotation speed of the drum 200 is reduced from the first speed H1 to the third speed L2 may be increased, and thus the falling impact applied to the laundry may be reduced. In addition, a load applied to the motor 500 to brake the drum 200 may be reduced.
  • the waiting time may be set to be shorter than the preparation time.
  • the time during which the laundry is stirred may be minimized in the pulling motion, thereby minimizing the wear of the laundry or the friction between the laundry and the drum 200.
  • the expansion time may be equal to or longer than a sum of the preparation time and the waiting time. Accordingly, the time during which the laundry is pulled in the pulling motion may be set to be equal to or longer than the time during which the laundry is stirred.
  • the high-speed period H and the low-speed period L may be periodically disposed in the pulling motion.
  • the low-speed period L may be further divided into two-stage speed periods. Accordingly, a total of three or more speed periods may be periodically repeated in the pulling motion.
  • the drum 200 may periodically repat the process of rotating at the first speed H1 for the expansion time, then decelerating to the second speed L1 and rotating for the preparation time, then decelerating again to the third speed L2 and rotating for the waiting time, and then accelerating again to the first speed H1 and rotating for the expansion time.
  • the pulling motion may go through the acceleration period with the acceleration force equal to or greater than 1G two times for one cycle.
  • FIG. 21 is a view illustrating a state of laundry when a laundry treating apparatus according to the present disclosure performs a pulling motion.
  • the laundry inside the drum 200 may be disposed with an initial length D 1.
  • the drum 200 may rotate at the second speed L 1 for the preparation time or may rotate at the third speed L2 for the waiting time, and the laundry may be stirred in the drum 200 without ascending while being attached to the inner wall of the drum 200.
  • the drum 200 may accelerate to the first speed H1 and rotate. Accordingly, the drum 200 may maintain the first speed H1 during the expansion time, and the expansion time may be set to be longer than a time during which the drum rotates once. Accordingly, the laundry may rotate while being attached to the inner wall of the drum 200 and may be expanded along the inner wall of the drum 200.
  • the laundry may be expanded to have an expanded length D2 greater than the initial length D1.
  • the laundry may not shrink by continuously receiving an expansion force, and may be expanded again even when being shrunk.
  • FIG. 22 illustrates that the rotation step includes the flipping motion.
  • the rotation step S2 may include the flipping motion that rotates the drum 200 bi-directionally at the second speed L1 that is lower than the first speed H 1 that may provide the acceleration force equal to or greater than 1G.
  • the flipping motion may perform the tumbling motion in one direction for a predetermined time and perform the tumbling motion again in another direction for the predetermined time.
  • the predetermined time may correspond to a time during which the drum rotates once.
  • the flipping motion may correspond to rotating the drum 200 once in the clockwise direction at the second speed L1 and rotating the drum 200 once in the counterclockwise direction at the second speed L1.
  • the drum 200 may flip the laundry by stirring the laundry in one direction and then stirring the laundry in another direction.
  • the surface of the laundry exposed to the inside of the drum 200 may be changed, thereby preventing the specific area of the laundry from being over-dried and inducing the laundry to be uniformly dried.
  • the flipping motion may be intermittently performed at a specific time point when the tumbling motion is performed. Further, when the flipping motion is performed, the rotation direction of the tumbling motion may vary.
  • the laundry inside the drum 200 may be evenly exposed to hot air.
  • the flipping motion may include rotating the drum 200 for the predetermined time in one direction at the first speed H1 and rotating the drum 200 for the predetermined time in another direction at the first speed H1.
  • the area of the laundry to which hot air is supplied may be concentrated by varying the area of the laundry attached to the inner wall of the drum 200.
  • the flipping motion may include rotating the drum 200 at the first speed H1 for the predetermined time in one direction and then rotating the drum 200 at the second speed L1 for the predetermined time in another direction.
  • the drum 200 may rotate clockwise.
  • the laundry when the drum 200 rotates at the second speed L1, the laundry may be raised to a vertical level higher than the center O of the drum and then fall downward as in the tumbling motion.
  • the drum 200 may temporarily stop or start to rotate counterclockwise by decelerating while rotating clockwise.
  • the laundry accommodated in the drum 200 may be distributed under the center O area of the drum.
  • the flipping motion may periodically repeat the motions from (A) to (C) in FIG. 21 .
  • the drum 200 may rotate at the first speed H1 in the flipping motion.
  • FIG. 24 illustrates that the rotation step includes a hanging motion.
  • the rotation step S2 may include the hanging motion in which the high-speed period H in which the laundry rotates in the state in which of being attached to the inner wall of the drum and the low-speed period L in which the laundry rotates while falling from the inner wall of the drum are periodically performed.
  • the hanging motion may be a motion periodically repeating the process of rotating the drum 200 at the first speed H1 for a first time period and then rotating the drum 200 at the second speed L1 lower than the first speed H1 for a second time period. That is, in the hanging motion, the drum 200 may periodically rotate in the high-speed period H and the low-speed period L.
  • the hanging motion corresponds to repeating the motion of rotating the drum 200 to generate the acceleration force equal to or greater than 1G for the first time period, then rotating the drum 200 to generate the acceleration force equal to or smaller than 1G for the second time period, and then rotating the drum 200 again to generate the acceleration force greater than 1G for the first time period.
  • the hanging motion may correspond to repeating the process of rotating the drum 200 at the first speed H1 for the first time period and then performing the tumbling motion for the second time period.
  • the laundry When the hanging motion is performed, the laundry may rotate while being attached to the drum 200 for the first time period, then, may be stirred or fall by being separated from the drum 200 for the second time period, and then may rotate again while being attached to the drum 200 for the first time period.
  • the time during which the laundry is attached to the inner wall of the drum 200 may be set to be longer also in the tumbling motion, thereby minimizing the friction on the inner wall of the drum 200.
  • the laundry items may be prevented from being rubbed against each other or from being worn.
  • the first time period may be set to be longer than the second time period or may be at least set to be equal to the second time period.
  • the hanging motion may sufficiently secure the time during which the laundry rotates while being attached to the inner wall of the drum 200, thereby preventing the laundry from being unnecessarily rubbed.
  • a duration of the high-speed period H may be set to be equal to or longer than a duration of the low-speed period L in the hanging motion, and a total time of the high-speed period H may be set to be longer than a total time of the low-speed period L.
  • the hanging motion may intensively supply the area of the laundry 200 that is not in contact with the inner wall of the drum 200 to hot air while rotating the drum 200 at the first speed H1 for the first time period.
  • the area where hot air is concentrated may be changed by stirring the laundry in the state of being separated from the drum while rotating the drum 200 at the second speed L1 for the second time period, and then not allowing another area of the laundry to be in contact with the inner wall of the drum 200 for the first time period.
  • the specific area of the laundry may be prevented from being over-dried in the hanging motion.
  • the drum in the hanging motion, to not only sufficiently fix the laundry to the inner wall of the drum 200, but also secure the time for sufficiently stirring the laundry in the drum 200, the drum may rotate at least once in the high-speed period H and the drum may rotate at least once in the low-speed period L.
  • the first time period may be set to a time during which the drum 200 rotates once or longer
  • the second time period may be set to a time during which the drum 200 rotates once or longer.
  • the first time period may be set to 2 minutes or longer
  • the second time period may also be set to 2 minutes or longer.
  • the hanging motion may further include a preparation period for rotating the drum for a third time period at the third speed L2 lower than the second speed L1 between the high-speed period H and the low-speed period L.
  • the hanging motion may further decelerate the drum 200 to the third speed L2 when decelerating the drum 200 from the first speed H1 to the second speed L1.
  • the laundry that has been attached to the inner wall of the drum 200 and has received the acceleration force equal to or greater than 1G may be prevented from additionally receiving a strong external force again.
  • a deceleration time of the drum 200 is further secured by decelerating the drum 200 to the third speed L2, thereby reducing a maximum magnitude of the acceleration force or the external force applied to the laundry. Accordingly, the friction or the fluff may be prevented from occurring in the process of separating the laundry from the drum 200.
  • the third speed L2 may be a speed at which the laundry is prevented from rising upward of the center O of the drum.
  • the first time period of the hanging motion may be set to be longer than the expansion time of the pulling motion. Further, the second time period may be set to be longer than the preparation time of the pulling motion. This is because the hanging motion is the motion that induces the laundry to be sufficiently exposed to hot air while preventing the friction force from being applied to the laundry, rather than preventing the expansion of the laundry.
  • a ratio of the high-speed period H in the hanging motion may be lower than a ratio of the high-speed period H in the pulling motion.
  • a time or period for reaching the next high-speed period H after the high-speed period H passes in the hanging motion may be set to be longer than a time or period for reaching the next high-speed period H after the high-speed period H passes in the pulling motion.
  • the pulling motion and the hanging motion may be common in that the high-speed period H and the low-speed period L are periodically performed in both motions.
  • the drum 200 may rotate in the clockwise direction at the second speed L1 for the second time period.
  • the laundry may repeat the process of ascending to the vertical level corresponding to the center O of the drum or to a location higher than the center O of the drum, descending, and then being stirred.
  • a period in which the drum 200 rotates at the second speed L1 for the second time period may correspond to the tumbling motion.
  • the rotation step S2 may include a shaking motion of periodically varying the rotation speed of the drum to two or more speeds.
  • the time period during which the speed of the drum changes in the shaking motion may be set to be longer than a time period for the drum to rotate once and shorter than 1 minute.
  • the period may be set to be in a range from 10 seconds to 20 seconds.
  • the shaking motion may be performed before the rolling motion. This is because the effect of the rolling motion is maximized when the rolling motion is performed after separating the laundry that requires further drying from the laundry that has been sufficiently dried because the rolling motion is the motion of drying the laundry while stirring the laundry at the low-speed.
  • a total of three types of laundry items may be accommodated in the drum 200.
  • the laundry items No. 1, 2, and 3 may be stirred in the drum 200 while forming similar trajectories.
  • the rotation at the second speed L1 may be performed for about 10 seconds or about 20 seconds.
  • the laundry item No. 3 may be less rubbed against the drum 200 than the laundry item No. 1, and the laundry item No. 2 may be less rubbed against the drum 200 than the laundry item No. 3.
  • the rolling motion may be mainly performed in the falling-rate drying period A3 because the falling impact applied to the laundry is the weakest.
  • FIG. 29 is a view illustrating a state of laundry when the rotation step performs a rolling motion.
  • the laundry may ascend because of the friction with the inner wall of the drum 200 as the drum 200 rotates.
  • the laundry may not be able to ascend higher than a vertical level corresponding to the radius R of the drum from the low point of the drum 200 and may be separated from the inner wall of the drum 200 and roll toward the low point of the drum 200.
  • the drum may rotate at a protection speed L4 lower than the second speed L1.
  • the protection speed L4 may be set as a speed at which the laundry is prevented from moving upwardly of the center of the drum.
  • the laundry may repeat the process of rolling while continuously moving from the low point of the drum 200 to only one side and have the small falling impact, so that the laundry may be prevented from shrinking.
  • the laundry in the rolling motion 200, the laundry is stirred only in the area lower than the center O of the drum 200, so that the laundry may frequently come into contact with the dryness sensor. Therefore, a change in the dryness of the laundry may be more accurately sensed via the rolling motion 200.
  • a time period for which the rolling motion is performed may be set to be longer than the time period for which the shaking motion is performed. This is because the shaking motion is the motion for classifying the laundry items, and the rolling motion is the motion for drying the laundry.
  • the shaking motion is performed in the constant-rate drying period A2 and the rolling motion is performed in the falling-rate drying period A3.
  • the stop motion may repeatedly perform the rotation of the drum 200 and the stop of the drum, and when the drum 200 rotates, the rotation direction of the drum 200 may be changed.
  • the drum may rotate in another direction after waiting for a stop time period.
  • a time period for which the drum 200 stops may be set longer than a time period for which the drum 200 rotates.
  • the time period for which the drum 200 stops may be set to three times or more the time period for which the drum 200 rotates.
  • the laundry may not be continuously pressurized by the self-load thereof and may be changed in location to prevent wrinkles from being formed.
  • the drum in the stop motion, the drum may be in a stop state.
  • the drum 200 may intermittently rotate clockwise or counterclockwise to change the location of the laundry, may stir the laundry, or may flip the laundry.
  • the speed at which the drum 200 rotates in the stop motion may be set to the protection speed L4.
  • the laundry treating apparatus may freely change the rotation direction, the rotation time, and the rotation speed of the drum 200.
  • the rotation step S2 of the laundry treating apparatus may perform various motions for changing the rotation speed and the rotation direction of the drum 200 based on the dryness of the laundry and the internal state of the drum 200, rather than rotating the drum 200 at the constant speed in one direction.
  • the rotation step S2 may be composed of the high-speed period H for rotating the drum such that the laundry rotates in the state of being attached to the inner wall of the drum 200, and the low-speed period L for rotating the drum such that the laundry rotates while falling from the inner wall of the drum.
  • a ratio of the high-speed period H to the low-speed period L is set to be different for each specific period, thereby performing the drying cycle while protecting the fabric and simultaneously preventing the shrinkage of the laundry.
  • FIG. 31 illustrates a rotation step S2 that may be applied in a preheating period in the air supply step S1.
  • the preheating period A1 as a state in which laundry in the wet laundry state is accommodated in the drum 200, corresponds to a period in which the drying cycle starts. Accordingly, the laundry located in the preheating period A1 may be in a state of being shrunk by water. That is, the diameter of the fiber of the laundry may be in the state of being reduced from the first diameter D1 to the second diameter D2.
  • the laundry may be dried in the shrunk state in the shape of the fiber having the second diameter D2 even when the air gap C is not removed.
  • the rotation step S2 may perform the pulling motion in the preheating period A1. Accordingly, the laundry may expand in the preheating period A1, so that the diameter of the fiber of the laundry may return to be close to the first diameter D 1.
  • the laundry items in the wet laundry state may be agglomerated with each other while going through a dehydration cycle.
  • the agglomeration of the laundry items may be resolved.
  • the pulling motion and the hanging motion may be performed together. Further, the hanging motion may be performed after the pulling motion. As a result, partial stirring and location change of the laundry together with the expansion of the laundry may be more reliably ensured during the pulling motion process.
  • the high-speed period H and the low-speed period L may be repeatedly disposed in the rotation step S2.
  • a sum time period of the high-speed periods H may be set to be longer than a sum time period of the low-speed periods L.
  • a duration of the high-speed period H may be set to be longer than a duration of the low-speed period L.
  • the period in which the drum rotates at the second speed L1 in the low-speed period L is defined as a constant-speed period and the period in which the drum rotates at the third speed L2 is classified as a deceleration period in the pulling period, it may be seen that the high-speed period H, the constant-speed period, and the deceleration period are periodically disposed in the preheating period A1.
  • a duration of the deceleration period is set to be shorter than a duration of the constant-speed period.
  • the preheating period A1 may be regarded as a period more concentrated on the expansion of the laundry rather than the stirring of the laundry.
  • FIG. 32 illustrates a rotation step S2 that may be applied in a constant-rate drying period A2 during the air supply step S 1.
  • the tumbling motion may be first performed in the constant-rate drying period A2. Therefore, as the tumbling motion is performed after the termination of the pulling motion, the laundry ascends upwardly of the center O of the drum in the expanded state and falls while being separated from the drum 200 at the location lower than the high point of the drum, thereby being exposed to hot air as long as possible.
  • the laundry may be prevented from being agglomerated while repeating the falling and the ascending, and the entire laundry may be evenly exposed to hot air as a range of being attached to the inner wall of the drum 200 also varies.
  • the laundry items accommodated in the drum 200 may be divided into the laundry item that has been sufficiently dried by hot air and the laundry item that requires the further drying.
  • the fiber of the laundry that has been sufficiently dried may shrink to have the third diameter D3 as the air gap C is removed by the falling impact, and the surface of the laundry may be damaged by being rubbed against the inner wall of the drum 200 or another laundry item.
  • the rotation step S2 performs the shaking motion. Via the shaking motion, the laundry that has been sufficiently dried and the laundry that requires further drying may be separated from each other.
  • the laundry that requires further drying may be intensively exposed to the hot air while being separated from the laundry that has been sufficiently dried and moving together with the motion of the drum 200.
  • a duration of the shaking motion may be shorter than the duration of the tumbling motion.
  • the shaking motion may be performed at the end of the constant-rate drying period A2 because it is for separating the laundry that has been sufficiently dried.
  • the shaking motion may be performed when the dryness of the laundry reaches the target value b. That is, the shaking motion may be performed starting from when the dryness of the laundry reaches the target value b in the constant-rate drying period A2 until the constant-rate drying period A2 ends and the falling-rate drying period A3 is entered.
  • the shaking motion may be performed after the tumbling motion is performed. Further, the duration of the shaking motion may be set to be shorter than the duration of the tumbling motion.
  • the shaking motion is the motion for classifying the dried laundry
  • the tumbling motion is the motion for drying the laundry.
  • the hanging motion may be further performed between the tumbling motion and the shaking motion.
  • the high-speed period H may promote the effect of performing the tumbling motion
  • the low-speed period L may prevent the laundry from being rubbed against the drum 200 or prevent the friction between the laundry items as the laundry is attached to the inner wall of the drum 200 and fixed to the drum 200.
  • the hanging motion may be performed to prevent the damage or the friction of the laundry when the tumbling motion has been performed and the drying of the laundry has been performed to some extent. It may be seen that the hanging motion has a pause period in which the stirring of the laundry is stopped during the tumbling motion.
  • the hanging motion may be performed when a reference time elapses in the constant-rate drying period A2. That is, when the reference time elapses while the tumbling motion is performed, the hanging motion may be performed.
  • the hanging motion may be performed for a predetermined time when the dryness of the laundry reaches the reference value a lower than the target value b in the constant-rate drying period A2.
  • the hanging motion is also the motion for drying the entire laundry while protecting the laundry
  • the hanging motion may be performed before the shaking motion.
  • a duration of the hanging motion may be shorter than the duration of the tumbling motion, and may be set to be longer than the duration of the shaking motion.
  • the constant-rate drying period A2 may be regarded as a period in which the low-speed periods L are more disposed and distributed than the heating drying periods A1 and the stirring and the hot air exposure of the laundry are centered.
  • the duration of the high-speed period H is set to be equal to or longer than the duration of the low-speed period L until the falling-rate drying period A3 is completed after the high-speed period H starts, based on the speed of the rotation step S2.
  • a time point at which the high-speed period H starts in the rotation step S2 is set to a time point at which the dryness reaches the specific value d higher than the set value c.
  • the drum 200 does not rotate as much as possible. This is because the laundry may be damaged even with the small friction with the drum 200 or between the laundry items in the cooling period A4.
  • the stop motion may be performed in the cooling period A4. That is, the drum 200 may intermittently rotate via the stop motion to prevent the wrinkles from being generated on the laundry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP22861667.8A 2021-04-19 2022-08-22 Vorrichtung zur behandlung von kleidung Pending EP4394118A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20210050701 2021-04-19
KR1020210111824A KR20220144287A (ko) 2021-04-19 2021-08-24 의류처리장치
PCT/KR2022/012529 WO2023027457A1 (ko) 2021-04-19 2022-08-22 의류처리장치

Publications (1)

Publication Number Publication Date
EP4394118A1 true EP4394118A1 (de) 2024-07-03

Family

ID=83784342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22861667.8A Pending EP4394118A1 (de) 2021-04-19 2022-08-22 Vorrichtung zur behandlung von kleidung

Country Status (6)

Country Link
EP (1) EP4394118A1 (de)
JP (1) JP2024530298A (de)
KR (1) KR20220144287A (de)
CN (1) CN118159698A (de)
AU (1) AU2022332770A1 (de)
WO (1) WO2023027457A1 (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000005493A (ja) * 1998-06-19 2000-01-11 Hitachi Ltd 衣類乾燥機の乾燥運転制御装置
KR20060023715A (ko) 2004-09-10 2006-03-15 삼성전자주식회사 블랙 매트릭스 제조방법 및 이를 갖는 컬러필터 기판의제조방법
JP2012055400A (ja) * 2010-09-07 2012-03-22 Panasonic Corp 衣類乾燥機
KR101594368B1 (ko) * 2013-09-03 2016-02-16 엘지전자 주식회사 의류처리장치 및 그 제어방법
KR102102654B1 (ko) 2018-04-18 2020-05-29 엘지전자 주식회사 의류처리장치 및 제어방법
KR20200065932A (ko) 2018-11-30 2020-06-09 엘지전자 주식회사 건조기
KR102635506B1 (ko) * 2018-12-13 2024-02-13 엘지전자 주식회사 인덕션 히터를 갖는 세탁장치 및 이의 제어방법
KR102679836B1 (ko) * 2018-12-18 2024-07-01 엘지전자 주식회사 건조기의 제어방법

Also Published As

Publication number Publication date
KR20220144287A (ko) 2022-10-26
JP2024530298A (ja) 2024-08-16
CN118159698A (zh) 2024-06-07
WO2023027457A1 (ko) 2023-03-02
AU2022332770A1 (en) 2024-04-04

Similar Documents

Publication Publication Date Title
AU2025201332A1 (en) Laundry treating apparatus
EP4394118A1 (de) Vorrichtung zur behandlung von kleidung
EP4382660A1 (de) Vorrichtung zur behandlung von kleidung
EP4394121A1 (de) Kleidungsverarbeitungsvorrichtung
EP4394117A1 (de) Vorrichtung zur behandlung von kleidungsstücken
KR102747588B1 (ko) 의류처리장치
KR102747589B1 (ko) 의류처리장치
KR102776912B1 (ko) 의류처리장치
CN114908539B (zh) 衣物处理装置
EP4039867A1 (de) Wäschebehandlungsvorrichtung
KR102248075B1 (ko) 의류 처리장치의 제어방법
KR20230111050A (ko) 의류처리장치 및 의류처리장치의 제어 방법
CN114908540A (zh) 衣物处理装置

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20240324

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)