WO2023027452A1 - Appareil de traitement de vêtements - Google Patents

Appareil de traitement de vêtements Download PDF

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Publication number
WO2023027452A1
WO2023027452A1 PCT/KR2022/012522 KR2022012522W WO2023027452A1 WO 2023027452 A1 WO2023027452 A1 WO 2023027452A1 KR 2022012522 W KR2022012522 W KR 2022012522W WO 2023027452 A1 WO2023027452 A1 WO 2023027452A1
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WO
WIPO (PCT)
Prior art keywords
drum
clothes
motion
section
speed
Prior art date
Application number
PCT/KR2022/012522
Other languages
English (en)
Korean (ko)
Inventor
김민지
이종민
최운제
이연주
김태웅
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to EP22861662.9A priority Critical patent/EP4382660A1/fr
Priority to CN202280071544.XA priority patent/CN118159700A/zh
Priority to AU2022332769A priority patent/AU2022332769A1/en
Publication of WO2023027452A1 publication Critical patent/WO2023027452A1/fr

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—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
    • 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

Definitions

  • the present invention relates to a laundry treatment device. More specifically, it relates to a clothes handling apparatus capable of drying clothes.
  • a laundry treatment device is a device capable of washing, drying, or washing and drying clothes (objects to be washed or objects to be dried), and includes a washing machine, a dryer, and a washing machine with both dryers.
  • FIG. 1 shows the structure of a conventional laundry treatment apparatus capable of performing a drying cycle.
  • a conventional dryer is provided to fix the drive unit 3 to the bottom surface of the cabinet 1.
  • a conventional laundry treatment apparatus includes a preheating period, a constant rate drying period, and a reduced rate drying period according to the state of a heat pump and the dryness of clothes. , It is divided into cooling sections, and the temperature or air volume of the hot air supplied to the drum is controlled for each section to protect clothes.
  • a conventional laundry treatment apparatus When the drying process is performed along a preheating section, a constant rate drying section, or a decreasing rate drying section, a conventional laundry treatment apparatus performs only a tumbling motion that allows the clothes to rise and then fall to be exposed to supplied hot air.
  • clothes in the third area (III) of the drum may be disposed in a state separated from the inner wall of the drum 2 and exposed to hot air, as in the first state. Then, as in the second state, the clothes may come into contact with the inner wall of the drum 2 .
  • the tumbling motion may cause friction between the clothing or between areas of the clothing even if the clothing is one piece, or may cause friction between the clothing and the drum 200 .
  • the clothing may be damaged or worn, and fluff may be generated in the clothing.
  • the conventional clothes handling apparatus dries clothes using a tumbling motion, which is the most advantageous motion for drying clothes, but the clothes are damaged by performing the tumbling motion throughout the entire drying process without considering the condition of the clothes.
  • a tumbling motion which is the most advantageous motion for drying clothes
  • the clothes are damaged by performing the tumbling motion throughout the entire drying process without considering the condition of the clothes.
  • shrinking or shrinking There was a fundamental limitation that there was a risk of shrinking or shrinking.
  • An object of the present invention is to provide a laundry treatment device that prevents fluff from being generated in clothes during a drying cycle.
  • An object of the present invention is to provide a laundry treatment device capable of preventing shrinkage of clothes in a drying cycle.
  • a section in which the clothes rotate integrally with the drum may be arranged in a decreasing rate drying section where the surface of the clothes is easily rubbed.
  • the rotational speed of the drum may be faster at the end than at the beginning.
  • a section in which the drum rotates at a speed at which clothes can be stirred may be disposed, but at the end of the reduced rate drying section, a section in which the drum is always accelerated and the clothes rotate integrally with the drum is disposed.
  • the section in which the drum is rotated at 1G or more may be arranged closer to the end than the beginning.
  • the laundry treatment apparatus of the present invention has an effect of preventing friction or abrasion of clothes during a drying cycle.
  • the laundry treatment apparatus of the present invention has an effect of preventing friction between clothes and between clothes and a drum during a drying cycle.
  • the laundry treatment apparatus of the present invention has an effect of preventing fluff from being generated on clothes during a drying cycle.
  • the present invention has an effect of protecting the surface of the clothes by providing a section in which the clothes rotate integrally with the drum according to the dryness of the clothes or the surface condition of the clothes.
  • FIG. 4 shows another structure of a conventional laundry treatment apparatus.
  • Fig. 5 shows the appearance of the laundry treatment apparatus of the present invention.
  • FIG 6 schematically illustrates the inside of the laundry treatment apparatus according to the present invention.
  • FIG. 7 is an exploded perspective view illustrating internal components constituting the laundry treatment apparatus separated from each other.
  • FIG 8 shows the appearance of a reducer according to an embodiment of the present invention.
  • FIG. 9 is an enlarged cross-sectional view of a driving unit in detail.
  • FIG. 10 illustrates a base and a rear plate according to an embodiment of the present invention.
  • FIG. 11 illustrates a coupling structure of a rear plate, a reducer, and a motor unit according to an embodiment of the present invention.
  • FIG. 12 shows a coupling structure of a reducer and a stator according to an embodiment of the present invention from the rear.
  • FIG. 13 illustrates coupling of a reducer and a motor unit according to an embodiment of the present invention.
  • Fig. 15 shows the change in the volume of clothes according to the change in the diameter of the fiber (L).
  • FIG. 16 shows an embodiment in which the laundry treatment apparatus of the present invention performs a drying cycle.
  • FIG 17 shows the state of the inside of the heat exchanger 900 and the drum 200 when the air supply step (S1) is performed.
  • Fig. 21 shows the state of clothes when the clothes handling apparatus of the present invention performs a pulling motion.
  • Fig. 22 shows that the rotating step includes a flipping motion.
  • Fig. 23 shows the state of clothes when the rotating step performs a flipping motion.
  • Fig. 27 shows the state of clothing when the rotating stage performs a rocking motion.
  • Fig. 29 shows the state of clothing when the rotating step performs a rolling motion.
  • a laundry treatment apparatus may include a cabinet 100 forming an exterior.
  • the drive unit may include a motor unit 500 that provides power to rotate the drum 200 .
  • the drive unit may be provided to be directly connected to the drum 200 so as to rotate the drum 200 .
  • the drive unit may be provided in a direct drive unit (DD) type. Accordingly, the driving unit directly rotates the drum 200 by omitting components such as belts and pulleys, thereby controlling the rotational direction of the drum 200 or the rotational speed of the drum 200 .
  • DD direct drive unit
  • the motor unit 500 may rotate at high RPM.
  • the clothes inside the drum 200 may be rotated at a much higher RPM than the RPM at which clothes can be rotated while attached to the inner wall of the drum 200 .
  • the driving unit of the laundry treatment apparatus may further include a reduction gear 600 capable of increasing torque while utilizing maximum output of the motor unit 500 by reducing RPM.
  • the drum 200 may be provided in a cylindrical shape to accommodate clothes.
  • water does not need to be injected into the drum 200 used only for drying, and liquid water condensed inside the drum 200 is discharged to the outside of the drum 200. don't have to be Therefore, the through hole provided along the circumferential surface of the drum 200 may be omitted. That is, the drum 200 used only for drying may be formed differently from the drum 200 used for washing.
  • the drum 200 may be provided in an integral cylindrical shape, but may be manufactured in a form in which a drum body 210 including a circumferential surface and a drum rear surface 220 forming a rear surface are combined.
  • the drum body 210 may be provided with a lift 213 that pulls the clothes inside so that the clothes accommodated inside can be mixed according to the rotation.
  • the clothes accommodated therein may repeat the process of rising and falling by the lift 213 .
  • Clothing accommodated inside the drum 200 can be evenly contacted with hot air while repeatedly rising and falling. Therefore, there is an effect of increasing the drying efficiency and shortening the drying time.
  • the support part 400 may include a front plate 410 disposed in front of the drum 200 and a rear plate 420 disposed in the rear of the drum 200 .
  • the front plate 410 and the rear plate 420 are provided in a plate shape and may be arranged to face the front and rear of the drum 200 .
  • the distance between the front plate 410 and the rear plate 420 may be equal to or longer than the length of the drum 200 .
  • the front plate 410 and the rear plate 420 may be fixed to and supported on the bottom surface of the cabinet 100 or the base 800 .
  • a filter unit (not shown) may be installed in the duct communication hole 417 to filter out lint or foreign substances having large particles generated from clothes.
  • the filter unit has an effect of filtering air discharged from the drum 200 to prevent foreign substances from accumulating inside the laundry treatment machine and from interfering with air circulation due to accumulation of foreign substances.
  • the drum 200 may be rotatably supported by both the front plate 410 and the rear plate 420 .
  • the support wheel 415 supports the front lower part of the drum 200, the load applied to the drum rotation shaft 6341 can be reduced. Therefore, it is possible to prevent the drum rotation shaft 6341 from being bent and to prevent noise from being generated due to vibration.
  • the inflow duct 821 may communicate with the duct communication hole 417 of the front plate 410 and communicate with a flow path installed inside the front plate 410 .
  • the moving duct 822 may be provided extending from the end of the inlet duct 821 toward the rear of the drum 200, and the discharge duct 823 is provided at the end of the moving duct 822 It may be provided to guide the air to the drum 200.
  • the laundry treatment apparatus is coupled to the circulation passage part 820 and directs the hot air discharged from the circulation passage part 820 to the rear of the drum 200 or the rear plate 420.
  • a connector 850 leading to may be further included.
  • the driving unit may be installed on the mounting unit 425 to prevent interference with the duct unit 423 . in other words.
  • the driving unit may be disposed radially inwardly spaced from the inner circumferential surface of the duct unit 423 .
  • the driving unit is installed on the mounting unit 425 and installed so that its rear side is exposed to the outside so that it can be cooled by external air.
  • the rotor 520 may be provided as an outer rotor type provided to accommodate the stator 510 and rotate along the circumference of the stator 510 .
  • a drive shaft may be coupled to the rotor 520 and may be directly connected to the drum 200 through the stator 510 and the mounting portion 425 .
  • the rotor 520 may directly transmit power for rotating the drum 200 .
  • gears inside the reduction gear 600 may shift and collide with each other, causing unnecessary vibration or noise.
  • the motor unit 500 may be coupled to the reduction gear 600 to be fixed.
  • the reducer 600 itself may serve as a reference point for the entire driving unit. That is, the reducer 600 may serve as a reference for the amount of vibration and inclination angle of the entire drive unit.
  • the stator 510 may be directly coupled to and fixed to the reduction gear 600. Accordingly, the location at which the driving shaft 530 is installed relative to the reduction gear 600 may not be varied.
  • the center of the drive shaft 530 and the center of the reducer 600 may be aligned with each other, and the drive shaft 530 may rotate while maintaining the same axis as the center of the reducer 600. .
  • the second axis M2 and the third axis M3 may refer to imaginary lines extending upward from the front to the rear of the laundry treatment apparatus. That is, the second axis M2 and the third axis M3 may be provided parallel to the XZ plane or orthogonal to the Y axis.
  • the motor unit 500 since the motor unit 500 is coupled to the reduction gear 600, it may vibrate or tilt along with the reduction gear 600. Accordingly, the motor unit 500 may be disposed parallel to the reduction gear 600 on the second shaft M2. Accordingly, the drive shaft and the drum rotation shaft may be arranged side by side along the second shaft M2.
  • the motor unit 500 can move integrally with the reduction gear 600, and the driving shaft and the drum rotating shaft can maintain the same axis.
  • a sealing part 450 may be provided between the drum rear surface 220 and the rear plate 420 .
  • the sealing part 450 is installed between the drum rear surface 220 and the rear plate 420 so that the air introduced into the duct part 423 of the rear plate 420 does not flow out and flows into the suction hole 224. can be sealed.
  • the sealing part 450 may be respectively disposed on an outer surface and an inner surface of the duct part 423 .
  • a first seal 451 may be provided outside the duct part 423 in the radial direction, and a second seal 452 may be provided inside the duct part 423 in the radial direction.
  • the first seal 451 can prevent the hot air from leaking outward in the radial direction between the drum rear surface 220 and the duct unit 423, and the second seal 452 is It is possible to prevent hot air from flowing out between the duct parts 423 in the radial direction.
  • the sealing part 450 may be disposed on the outside and inside of the suction hole 224 in the radial direction, respectively.
  • the first seal 451 may be provided outside the suction hole 224 in the radial direction
  • the second seal 452 may be provided inside the suction hole 224 in the radial direction.
  • the sealing part 450 is provided in contact with both the drum rear surface 220 and the rear plate 420 in order to prevent hot air from leaking out. Since the drum 200 rotates during the operation of the laundry treatment machine, continuous friction is applied to the sealing part 450 by the rear surface 220 of the drum. Therefore, it is preferable that the sealing part 450 is made of a material capable of sealing between the drum rear surface 220 and the duct part 423 without deteriorating its performance even with frictional force and frictional heat generated by rotation.
  • the rear plate 420 may further include a bracket 700 for reinforcing coupling rigidity.
  • a bracket 700 may be additionally coupled to the rear plate 420 , and the reduction gear 600 and the motor unit 500 may be coupled to the rear plate 420 by the bracket 700 .
  • FIG 8 shows the appearance of a reducer according to an embodiment of the present invention.
  • the reducer 600 may include reducer housings 610 and 620 forming an external appearance.
  • the reducer housing may include a first housing 610 provided to face the drum and a second housing 620 facing the motor unit.
  • the reducer 600 may include a gearbox.
  • the gearbox may be provided to receive power from the motor unit and convert the RPM of the motor unit to a small RPM, but increase a torque value and transmit it to the drum.
  • Most of the gearbox is accommodated inside the second housing 620, and the first housing 610 may be provided to shield the inside of the reducer 600. Thus, the overall thickness of the reducer 600 can be reduced. A detailed configuration of the gearbox will be described later.
  • the first housing 610 extends in a direction away from the second housing 620 from the first housing blocking body 611 provided to shield the second housing 620 and the first housing blocking body 611. It may include a first housing bearing portion 612 to be.
  • the first housing bearing part 612 can accommodate the drum rotation shaft 6341 and can rotatably support the drum rotation shaft 6341 .
  • the first housing 610 may include a stator coupling part 613 provided to support the motor part.
  • the stator coupling part 613 may be provided by extending in a direction away from the first housing bearing part 612 on the circumferential surface of the first housing blocking body 611 .
  • the second housing 620 may accommodate a gear coupling body therein.
  • the gearbox coupled to the reducer 600 may include a sun gear, a planetary gear that revolves around the sun gear, and a ring gear that receives the planetary gear and induces the planetary gear to rotate.
  • the second housing 620 extends from the second housing coupling body 621 coupled to the first housing 610 in a direction away from the first housing 610 from the second housing coupling body 621 to form a gearbox.
  • a second housing blocking body 622 forming a space in which is accommodated, and a second housing extending away from the first housing 610 from the inner circumferential surface of the second housing blocking body 622 to support the driving shaft 530. It may include a shaft part.
  • the washer unit 540 may include one or more washer coupling protrusions 5411 provided to protrude from the washer coupling body 541 in a direction away from the reducer.
  • the washer unit 540 may include one or more washer coupling holes 5412 penetrating the washer coupling body 541 .
  • the washer coupling protrusion 5411 may be coupled to an accommodation groove formed in the rotor.
  • the washer coupling hole 5412 may be used to couple the rotor and the washer part 540 by inserting a fastening member penetrating the rotor.
  • the washer coupling protrusion 5411 and the washer coupling hole 5412 may be alternately positioned along the circumferential direction on the surface of the washer coupling body 541 and provided in plurality.
  • FIG. 9 is an enlarged cross-sectional view of a driving unit in detail.
  • the permanent magnet located on the inner circumferential surface of the rotor 520 can move in a specific direction by the rotating magnetism generated by the stator 510, and the permanent magnet can be fixed to the inner circumferential surface of the rotor 520. Therefore, the rotor 520 can rotate by the rotating magnetic field of the stator 510 .
  • a drive shaft 530 that rotates with the rotor 520 and transmits rotational power of the rotor 520 may be coupled to the rotation center of the rotor 520 .
  • the driving shaft 530 may be provided to rotate together with the rotor 540 .
  • the driving shaft 530 may be coupled to the rotor 540 through a washer part 540 .
  • the drive shaft 530 may be directly connected to the rotor 520, but when connected through the washer part 540, it can be more firmly coupled to the rotor 520, so that the rotational force of the rotor 520 can be more effectively can be conveyed In addition, there is an effect of increasing durability of the drive shaft 530 by preventing a load from being intensively applied to the drive shaft 530 .
  • the drive shaft 530 may be directly connected to the drum, but since the drive shaft 530 rotates at the same speed as the rotation speed of the rotor 520, deceleration may be required. Accordingly, the drive shaft 530 may be connected to the reducer, and the reducer may be connected to the drum. That is, the reducer may reduce the rotation of the driving shaft 530 to rotate the drum.
  • the reducer 600 may include a first housing 610 and a second housing 620 forming an exterior and a gear box 630 that reduces power of the drive shaft 530 .
  • the second housing 620 may provide a space for accommodating the gear box 630, and the first housing 610 may shield the accommodation space provided by the second housing 620.
  • the second housing 620 extends backward from the second housing coupling body 621 coupled to the first housing 610 and the inner circumferential surface of the second housing coupling body 621 to form an accommodation space, and the gearbox ( 630) and a second housing bearing portion 623 extending rearward from the second housing blocking body 622 and accommodating the drive shaft 530. .
  • the gear box 630 may include a ring gear 633 installed along the inner circumferential surface of the second housing blocking body 622 .
  • One or more planetary gears 632 gear-coupled with the ring gear 633 may be provided on an inner circumferential surface of the ring gear 633, and gear-coupled with the planetary gear 632 on the inside of the ring gear 633, and a drive shaft.
  • a sun gear 631 rotating together with 530 may be provided.
  • the tenang gear 631 may be coupled to the driving shaft 530 to rotate.
  • the sun gear 631 may be provided as a separate member from the drive shaft 530, but is not limited thereto, and the sun gear 631 may be integrally formed with the drive shaft 530.
  • the sun gear 631, the planetary gear 632, and the ring gear 633 may be provided as helical gears. When each gear is provided as a helical gear, noise can be reduced and power transmission efficiency can be increased. However, it is not limited thereto, and the sun gear 631, the planetary gear 632, and the ring gear 633 may be provided as spur gears.
  • the planetary gear 632 is gear-coupled on the outer circumferential surface of the sun gear 631.
  • the planetary gear 632 may be geared and rotated between the ring gear 633 and the sun gear 631.
  • the planetary gear 632 may include a planetary gear shaft 6323 inserted into the center of rotation.
  • the planetary gear shaft 6323 may rotatably support the planetary gear 632 .
  • the reducer may further include a first carrier 6342 and a second carrier 6343 supporting the planetary gear shaft 6323.
  • the planetary gear shaft 6323 may be supported by the second carrier 6343 at the front and supported by the first carrier 6342 at the rear.
  • the drum rotation shaft 6341 may extend from the center of rotation of the second carrier 6343 in a direction away from the motor unit.
  • the drum rotation shaft 6341 may be provided as a separate component from the second carrier 6343 and coupled to rotate together.
  • the drum rotation shaft 6341 may extend from the second carrier 6343 and be integrally formed with the second carrier 6343.
  • the drum rotation shaft 6341 may be coupled to the drum to rotate the drum. As described above, the drum rotating shaft 6341 may be coupled to the drum through a connecting body such as a bushing, or may be directly coupled to the drum without a separate connecting body.
  • the drum rotation shaft 6341 may be supported by the first housing 610 .
  • the first housing 610 extends in a direction away from the second housing 620 from the first housing blocking body 611 and the first housing blocking body 611 that shields the accommodation space of the second housing 620.
  • a first housing bearing portion 612 accommodating the drum rotation shaft 6341 may be included.
  • a first bearing 660 and a second bearing 670 are press-fitted to the inner circumferential surface of the first housing bearing part 612 to rotatably support the drum rotational shaft 6341 .
  • the first housing 610 and the second housing 620 may be coupled to each other through a speed reducer fastening member 681 .
  • the speed reducer fastening member 681 can pass through the first housing 610 and the second housing 620 at the same time and couple the two members.
  • the speed reducer fastening member 681 penetrates the first housing 610, the second housing 620 and the rear plate 420 at the same time to couple the first housing 610 and the second housing 620.
  • the reducer 600 may be fixed to the rear plate 420.
  • the rear plate 420 may be formed of a thin iron plate. Therefore, it may be difficult to secure rigidity to support all of the reducer 600, the motor unit 500 coupled to the reducer 600, and the drum 200 connected to the reducer 600. Therefore, when the reducer 600 is coupled to the rear plate 420, the bracket 700 may be used to secure the rigidity of the rear plate 420.
  • the bracket 700 may be formed of a material having higher rigidity than the rear plate 420 and coupled to the front or rear surface of the rear plate 420 .
  • the bracket 700 is coupled to the front surface of the rear plate 420 to secure rigidity to which the reduction gear 600 can be coupled. and can be combined at the same time.
  • a fastening member such as a bolt may be used to couple the rear plate 420, the bracket 700, and the reducer.
  • the reducer fastening member 681 used to couple the first housing 610 and the second housing 620 can be used. That is, the speed reducer fastening member 681 may pass through the second housing 620, the first housing, the rear plate 420, and the bracket 700 and couple them together.
  • the rear plate 420 can be supported by the bracket 700 from the front and by the first housing 610 from the rear, rigidity can be secured even by the coupling of the reducer 600. .
  • a stator coupling portion 613 to which the motor unit 500 can be coupled may be formed on a radially outer side of the first housing 610 .
  • the stator coupling portion 613 may include a coupling groove formed by recessing the stator coupling portion 613 .
  • the stator 510 may be directly coupled to the rear plate 420, but may also be coupled to the stator coupling part 613.
  • the stator 510 may include a fixing rib 512 provided on an inner circumferential surface to support the stator.
  • the fixing rib 512 may be coupled to the stator coupling part 613 .
  • the fixing rib 512 and the stator coupling part 613 may be coupled to each other by a stator coupling pin 617 .
  • the motor unit 500 is coupled to the reduction gear 600 while being spaced apart from the rear plate 420, the motor unit 500 and the reduction gear 600 may form one vibrating body. Therefore, even when vibration is applied from the outside, the drive shaft 530 coupled to the rotor 520 and the drum rotation shaft 6341 connected to the reducer 600 can easily maintain coaxiality.
  • the drum rotating shaft 6341 may be distorted due to vibration of the drum 200 .
  • the motor unit 500 is coupled to the first housing 610 supporting the drum rotation shaft 6341, even if the axial direction of the drum rotation shaft 6341 is distorted, the first housing 610 The axial direction of the drive shaft 530 will also be twisted similarly. That is, since the motor unit 500 is moved integrally with the reduction gear 600, the drum rotation shaft 6341 and the drive shaft 530 can maintain coaxiality even when force is applied from the outside.
  • FIG. 10 illustrates a base and a rear plate according to an embodiment of the present invention.
  • the rear plate 420 may be located at the rear of the drum.
  • the rear plate 420 may guide the hot air discharged from the circulation passage part 820 to the drum. That is, the rear plate 420 may be positioned behind the drum to form a flow path so that hot air is evenly supplied to the entire drum.
  • the rear plate 420 may include a rear panel 421 facing the rear surface of the drum and a duct part 423 provided to be recessed backward from the rear panel 421 to form a flow path.
  • the duct part 423 may be provided by being pushed backward from the rear panel 421 .
  • the duct part 423 may be provided to partially accommodate the rear surface of the drum.
  • the duct part 423 may include an inlet part 4233 positioned behind the circulation passage part and a moving part 4231 positioned behind the drum.
  • the moving part 4231 may be provided to accommodate a part of the drum.
  • the moving part 4231 may partially accommodate the drum and form a flow path provided behind the drum.
  • the moving part 4231 may be provided in an annular shape to face a suction hole formed on the rear surface of the drum.
  • the moving part 4231 may be recessed in the rear panel 421 . That is, the front of the moving part 4231 is provided to be open, and may form a flow path together with the rear surface of the drum. can
  • the rear plate 420 may include a mounting part 425 provided inside the moving part 4231 in the radial direction.
  • the mounting part 425 may provide a space to which the reduction gear 600 or the motor part 500 is coupled. That is, the rear plate 420 may include a mounting portion 425 provided on the inside and a floating portion 4231 provided in an annular shape outside the mounting portion 425 in a radial direction.
  • the flow part 4231 may include an outer circumferential flow part 4231a that surrounds an inner space in which hot air flows from the outside.
  • the flow part 4231 may include an inner flow part 4231b that surrounds an inner space through which hot air flows. That is, the outer circumferential flow portion 4231a may form an outer circumference of the floating portion 4231 and the inner circumferential flow portion 4231b may form an inner circumference of the floating portion 4231 .
  • the flow part 4231 may include a flow concave surface 4232 forming a rear surface of a passage through which hot air moves.
  • the flow depression surface 4232 may be provided to connect the flow outer circumferential portion 4231a and the flow inner circumferential portion 4231b. That is, a space in which hot air discharged from the circulation passage part 820 flows may be formed by the flow inner circumferential portion 4231b, the flow outer circumferential portion 4231a, and the flow depression surface 4232 .
  • the hot air can be guided toward the drum by preventing the hot air from leaking to the rear by the flow concave surface 4232 .
  • the flow depression surface 4232 may mean a depression surface of the flow part 4231 .
  • the inlet part 4233 may be positioned to face the circulation passage part 820 .
  • the inlet may be positioned to face the blower 8231.
  • the inlet part 4233 may be recessed backward from the rear panel 421 to prevent interference with the blowing part 8231 .
  • An upper side of the inlet part 4233 may be connected to the moving part 4231 .
  • the laundry treatment apparatus may include a connector 850 connected to the blower 8231.
  • the connector 850 may guide hot air discharged from the blowing unit 8231 to the moving unit 4231.
  • the connector 850 may have a flow path formed therein to guide the hot air discharged from the blowing unit 4231 to the moving unit 4231 . That is, the connector 850 may form a flow path connecting the blowing unit 8231 and the moving unit 4231 .
  • the cross-sectional area of the passage provided inside the connector 850 may increase as the distance from the blowing unit 8231 increases.
  • the connector 850 may be positioned to face the inlet 4233.
  • the inlet 4233 may be recessed backward to prevent interference with the connector 850 .
  • an upper end of the connector 850 may be provided to partition the moving part 4231 and the inlet part 4233. That is, the hot air discharged from the connector 850 may be introduced into the moving part 4231 and prevented from being introduced into the inlet part 4233 .
  • the connector 850 may be provided to evenly supply hot air to the moving part 4231 .
  • the connector 850 may have a width that increases as the distance from the blowing unit 8231 increases.
  • An upper end of the connector 850 may be located along a circumferential extension of the outer circumferential portion 4231a.
  • the hot air discharged from the connector 850 may be supplied to the moving part 4231 as a whole without being moved to the inlet part 4233 .
  • the connector 850 prevents hot air from concentrating on one side of the moving part 4231 to evenly supply the hot air to the inside of the drum. Therefore, there is an effect of increasing drying efficiency of clothes.
  • the connector 850 may be provided so that the width increases toward the upstream side, so that the speed of the hot air moving along the connector 850 decreases along the flow direction. That is, the connector 850 may perform a function of a diffuser for adjusting the speed of hot air. The connector 850 reduces the speed of the hot air to prevent the hot air from being intensively supplied to a specific portion of the drum.
  • the inlet portion 4233 provided to face the connector 850 and prevented from interfering with the connector 850 also has a width as it moves away from the blowing portion 8231. may be provided to increase. Due to the shape of the inlet part 4233, the overall shape of the duct part 423 may be a '9' shape when viewed from the front.
  • the drum Since the drum is provided to rotate during the drying cycle, the drum may be provided to be spaced apart from the moving part 4231 by a predetermined distance. Hot air may flow out through the separation space.
  • the laundry treatment apparatus may further include a sealing unit 450 to prevent hot air from leaking into the separation space between the drum and the flow unit 4231 .
  • the sealing part 450 may be positioned along the circumference of the moving part 4231 .
  • the sealing part 450 may include a first sealing 451 provided along an outer circumference of the moving part 4231 .
  • the first seal 451 may be provided between the outer circumference of the drum and the moving part 4231 .
  • the first seal 451 is provided in contact with both the drum rear surface 220 and the rear plate 420 to more effectively prevent leakage.
  • the first seal 451 may be provided in contact with the front surface of the connector 850 .
  • the first seal 451 may be provided in contact with an upper end of the connector 850 .
  • the connector 850 and the moving part 4231 may form a flow path through which hot air flows. Accordingly, the first seal 451 is provided to come into contact with the connector 850 to prevent hot air from leaking between the drum and the connector 850 .
  • the sealing part 450 may include a second sealing 452 provided along the inner circumference of the moving part 4231 .
  • the second seal 452 may be provided between the inner circumference of the drum and the moving part 4231 .
  • the second seal 452 may be provided to contact both the drum rear surface 220 and the rear plate 420 .
  • the second seal 452 may prevent hot air moving along the flow part 4231 from leaking toward the mounting part 425 .
  • the sealing unit 450 is made of a material capable of sealing between the drum rear surface 220 and the moving unit 4231 without deteriorating its performance even with frictional force and frictional heat generated by rotation.
  • FIG. 11 illustrates a coupling structure of a rear plate, a reducer, and a motor unit according to an embodiment of the present invention.
  • the reduction gear 600 may be supported by the rear plate 420 and the motor unit 500 may be coupled to the reduction gear 600 . That is, the rear plate 420 may be provided to support both the reduction gear 600 and the motor unit 500.
  • a motor unit 500 that provides rotational power and a speed reducer 600 that reduces the power of the motor unit and transmits it to the drum may be positioned.
  • the reducer 600 may be installed on the rear plate 420 so as to be located inside the duct unit 423 .
  • the reducer 600 may be located inside the moving part 4231 in the radial direction so as to prevent interference with the moving part 4231.
  • the gear unit inside the reducer 600 may be damaged by the heat of the hot air moving along the moving part 4231. Therefore, the moving part 4231 and the reducer 600 may be provided to be spaced apart from each other by a predetermined distance.
  • the reducer 600 may be coupled to pass through the rear plate 420 . Therefore, the reducer 600 may be connected to the drum located in front of the rear plate 420 .
  • the stator 510 may be coupled to the reducer 600.
  • the stator 510 may be coupled to the reduction gear 600 and installed to be spaced apart from the rear plate 420 .
  • the reducer 600 may be positioned between the drum and the motor unit to support the drum and the motor unit to be spaced apart from the rear plate 420 . That is, the reduction gear 600 may be the center of supporting the drum and the motor unit.
  • the stator 510 includes a main body 511 provided in a ring shape, a fixing rib 512 extending from an inner circumferential surface of the main body 511 and coupled to the stator coupling part 613 of the reducer, Teeth 514 extending from the outer circumferential surface along the circumference of the main body 511 to wind the coil, and a pole shoe 515 provided at the free end of the teeth 514 to prevent the coil from escaping.
  • the rotor 520 may include a rotor body 521 provided in a cylindrical hollow shape.
  • the rotor 520 may include an installation body 522 that is recessed forward from the rear surface of the rotor body 521 .
  • permanent magnets may be disposed along the inner circumferential surface of the rotor body 521 .
  • the rotor 520 may be coupled to the drive shaft 530 to transfer rotational power of the rotor 520 to the outside through the drive shaft 530 .
  • the driving shaft 530 may be connected to the rotor 520 through a washer part 540 .
  • the motor unit 500 may include a washer unit 540 supporting the driving shaft 530 .
  • the washer unit 540 may include a washer coupling body 541 coupled to the rotor.
  • the washer coupling body 541 may be provided in a disk shape.
  • the washer unit 540 may include a receiving body 542 accommodated in the rotor.
  • the receiving body 542 may be provided to protrude rearward from the washer coupling body 541 .
  • the washer part 540 may include a shaft support hole 543 provided through the center of the receiving body 542 .
  • the drive shaft 530 may be inserted into the shaft support hole 543 and supported by the washer unit 540 .
  • the washer unit 540 may include a washer coupling hole 5412 provided through the washer coupling body 541 .
  • the installation body 522 may include a rotor coupling hole 526 provided at a position corresponding to the washer coupling hole 5412 . That is, the washer unit 540 and the rotor 520 may be coupled to each other by a coupling member that passes through the washer coupling hole 5412 and the rotor coupling hole 526 at the same time. That is, the washer unit 540 and the rotor 520 may be coupled to rotate together.
  • the washer unit 540 may include a washer coupling protrusion 5411 protruding rearward from the washer coupling body 541 .
  • the installation body 522 may include a washer protrusion accommodating hole 525 provided to correspond to the washer coupling protrusion 5411 .
  • the washer coupling protrusion 5411 may be inserted into the washer protrusion receiving hole 525 to support coupling between the washer unit 540 and the rotor 520 .
  • the rotor 520 may include a rotor installation hole 524 provided through the center of the installation body 522 .
  • the rotor installation hole 524 may accommodate the receiving body 542 . Accordingly, the washer unit 540 can rotate together with the driving shaft 530 by the rotor 520 and can firmly support the coupling between the driving shaft 530 and the rotor 520 . Therefore, there is an effect of securing durability and reliability of the entire motor unit 500 .
  • FIG. 12 shows a coupling structure of a reducer and a stator according to an embodiment of the present invention from the rear.
  • the stator 510 is fixed to the reducer 600 and has a body body 511 provided in a ring shape and a fixed rib extending from the inner circumferential surface of the body body 511 and coupled to the stator fastening hole 615 of the reducer. 512, a tooth 514 extending from the outer circumferential surface along the circumference of the main body 511 and provided to wind the coil, and a pole shoe provided at the free end of the tooth 514 to prevent the coil from escaping 515 and a terminal (not shown) for controlling supply of current to the coil.
  • the stator 510 may pass through the main body 511 and include an accommodation space 513 provided inside the main body 511 .
  • the fixing ribs 512 may be provided in a plurality by being spaced apart at a predetermined angle based on the receiving space 513 inside the main body 511, and a fixing member is installed inside the fixing rib 512.
  • a hole 5121 is provided so that the fixing rib hole 5121 and the stator fastening hole 615 of the reducer can be coupled using a fixing member such as a pin.
  • stator 510 When the stator 510 is directly coupled to the reduction gear 600, a part of the reduction gear 600 may be provided to be accommodated in the stator 510. In particular, when the reduction gear 600 is accommodated in the stator 510, the overall thickness of the drive unit including both the reduction gear unit and the motor unit is reduced to further expand the volume of the drum.
  • the reducer 600 may be provided with a smaller diameter than the diameter of the main body 511 . That is, the first housing 610 and the second housing 620 may have a largest diameter smaller than that of the main body 511 . Thus, at least a part of the reducer 600 may be accommodated and disposed in the main body 511 . However, the stator coupling part 613 may extend to overlap the fixing rib 512 in the housing of the reducer. Thus, the stator coupling part 613 is coupled to the fixing rib 512 and parts of the first housing and the second housing 620 may be located inside the main body 511 .
  • FIG. 13 illustrates coupling of a reducer and a motor unit according to an embodiment of the present invention.
  • the stator 510 may be coupled to the reducer 600 . It is coupled to the stator coupling part 613 protruding outward from the housing of the reduction gear 600 so that at least a part of the reduction gear may be accommodated inside the main body 511 .
  • the center of the main body 511 and the center of the drive shaft 530 and the reducer 600 can always be maintained coaxially.
  • the rotor 520 may be arranged to accommodate the stator 510 while being spaced apart from the pole shoe 515 by a predetermined distance. Since the rotor 520 is fixed to the reducer 600 in which the driving shaft 530 is accommodated in the main body 511, the distance G1 between the rotor 520 and the stator 510 is always can be maintained
  • the rotor 520 and the stator 510 are prevented from colliding or being temporarily twisted and rotated in the stator 510, so that noise or unnecessary vibration can be prevented from occurring.
  • Both the virtual third diameter line K3 passing through the center of the rotor 520 may be disposed at the center of rotation of the reducer 600.
  • the speed reducer 600 itself becomes the center of rotation of the drive shaft 530 and the stator 510 is directly fixed to the speed reducer 600, the drive shaft 530 is based on the speed reducer 600. can be prevented from turning. As a result, the reliability of the reduction gear 600 can be guaranteed.
  • the fibers L forming the clothing may have a certain thickness.
  • the diameter of the fiber (L) may be provided as a first diameter (D1).
  • the fiber (L) is provided with a material capable of expanding or compressing its volume, a void (C) capable of containing air may be disposed therein.
  • the fibers (L) themselves may also contain water, but the water may be filled in the pores (C).
  • the water may remain in the void C.
  • the fiber (L) itself serves as a capillary, even if the fiber (L) is disposed in the air, the water (W) may be filled in the void (C) as it is.
  • the clothing when the clothing is pulled out while being immersed in the water (W), it may be partially contracted due to the surface tension of the water. Therefore, when the fiber (L) is immersed in water (W) and taken out, the diameter of the fiber may be reduced to a second diameter (D2) smaller than the first diameter (D1).
  • the fibers (L) may generate contraction force and restoring force to fill the suddenly regenerated voids (C). As a result, the fiber (L) can be contracted inwardly.
  • the void (C) when an external force (F) acts on the fiber (L) by the rotation of the drum in a state where the void (C) is regenerated inside the fiber (L), the void (C) can be removed.
  • the fiber L when the voids C are removed, the fiber L can be further contracted by that much, and the fiber L has a third diameter smaller than the second diameter D2. (D3).
  • the diameter of the fibers L of the clothes may be reduced from the first diameter D1 to the third diameter D3.
  • Fig. 15 shows the change in the volume of clothes according to the change in the diameter of the fiber (L).
  • the length of a portion of the clothing in which the fibers L are combined may be provided as a first length (T1), and the thickness of the portion of the clothing may be provided as a first diameter (D1). there is.
  • the length of the part of the clothing may be shortened to a second length (T2) shorter than the first length,
  • the thickness of a portion of the clothing may also be reduced to a third diameter D2 smaller than the first diameter D1.
  • the entire garment may shrink in length and thickness compared to the state before drying.
  • the surface of the clothes may become fluffed even by a small amount of friction.
  • the frictional force further increases when the clothes rub against each other or the drum, and the surface of the clothes may be worn.
  • the laundry treatment apparatus of the present invention may perform a drying cycle to prevent not only shrinkage of the clothes but also abrasion of the clothes.
  • FIG. 16 shows an embodiment in which the laundry treatment apparatus of the present invention performs a drying cycle.
  • Figure 16 (a) shows the control step constituting the drying process.
  • the control panel of the laundry treatment apparatus of the present invention may execute an arbitrary drying course and option for performing a drying process for removing moisture from the clothes accommodated in the drum 200 .
  • the control panel is provided to receive a selection command for selecting any one of an arbitrary drying course and option and an execution command for executing the selected course and option through the input unit 118 .
  • An arbitrary drying course and option may be composed of an algorithm that performs a drying process by supplying hot air to the inside of the drum 200 while rotating the drum 200 by operating the drive unit and the heat exchange unit 900. .
  • an arbitrary drying course and option commonly include an air supply step (S1) of supplying air to the drum 200, and rotating the drum 200 during the air supply step (S1) to dry the clothes.
  • a rotation step (S2) of exposing the air, and a temperature control step (S3) of controlling the internal temperature of the drum 200 or the temperature of the refrigerant may be included.
  • the air supply step (S1), the rotation step (S2), and the temperature control step (S3) may be simultaneously performed during the drying process.
  • the air supplying step (S1) may include supplying hot air to the drum 200 by driving the heat exchanger 900 and the circulation passage fan 950.
  • the air supply step (S1) may include supplying relatively low-temperature air to the inside of the drum 200 by driving only the circulation flow path fan 950 without driving the heat exchange unit 900.
  • the rotation step (s2) and the temperature control step (S3) for protecting the clothes may be performed when the cloth protection course is performed.
  • the first speed may correspond to a speed at which the drum 200 rotates or higher to generate a centrifugal force of 1 G or more on the clothes
  • the second speed may correspond to a speed at which the drum 200 rotates to generate a centrifugal force of 1 G or less on the clothes. It may correspond to the speed of rotating (200).
  • the prevention step (S21) may further include a low speed section (L) rotating lower than the first speed (H1).
  • the high-speed section (H) and the low-speed section (L) may be arranged periodically.
  • the preventing step (S21) by stirring the clothes through the low-speed section (L), overdrying of only a specific area of the clothes in the high-speed section (H) can be prevented and the clothes can be induced to dry evenly. .
  • the laundry treatment apparatus of the present invention appropriately selects or combines the prevention step (S21), the protection step (S22), and the separation step (S23) for each section of the air supply step (S1), so that clothes are worn out. It can prevent shrinkage of clothes, prevent clothes from shrinking, and promote uniform drying of clothes.
  • the preheating period A1 may be set until the operating HZ of the compressor 930 reaches either the heating HZ or the maximum HZ.
  • the preheating period A1 may be set until the initial time after the compressor 930 is operated.
  • the preheating section A1 may be set to a temperature until the temperature of the air flowing through the circulation passage part 930 reaches the heating temperature.
  • the heating temperature may correspond to 40 degrees Celsius as a temperature at which the clothing can be dried in a greater amount than the amount of natural drying. That is, a section may be determined as the preheating section A1 until the heat exchanger 900 operates and the air discharged to the circulation passage section 930 reaches the heating temperature.
  • preheating section A1 air continuously heated may be introduced into the drum 200 due to the operation of the compressor 930 and the circulating flow path fan 950. As a result, while the internal temperature of the drum 200 gradually increases, moisture may be evaporated from the clothes.
  • the rotating step S2 proceeds in the preheating section A1 and the clothes rotate in the drum 200, the air can be evenly exposed to the surface of the clothes. As a result, drying of the clothes may proceed in the preheating section A1 as well.
  • the dryness sensor may include an electrode sensor capable of contacting the clothes and measuring a resistance value of the clothes to calculate the dryness of the clothes.
  • the constant rate drying section A2 may be a section in which hot air is sufficiently introduced into the drum 200 and moisture in the clothes is dried in earnest.
  • the rotation step (S2) is also performed in the constant rate drying section (A2), and the position of the clothes disposed on the drum 200 is continuously varied, so that the clothes can be evenly exposed to the hot air. Accordingly, a greater amount of moisture may be vaporized from the clothing 200 than when the drum 200 is stopped.
  • the set value (c) may be set to 50% or more, for example, 80%. This is because when the dryness of the clothes is 50% or more, the heat of vaporization is also reduced because the amount of moisture discharged from the clothes is reduced, so the temperature of the hot air does not decrease.
  • the compressor 930 does not operate, and the motor unit 500 and the circulation passage fan 950 may drive.
  • cold air having a temperature lower than that of the hot air is supplied to the drum 200 , and the cold air evenly contacts clothes rotating inside the drum 200 so that the clothes can be cooled.
  • the cooling period (A4) may end when the internal temperature of the drum 200 reaches a safe temperature.
  • the safe temperature is a temperature at which the user is not exposed to fire, and may correspond to 20 degrees.
  • a waiting step of waiting for a predetermined time after the rotation step S2 is finished may be further performed. That is, at the end of the cooling period (A4), only the circulation flow path fan 950 is driven without rotation of the drum 200 so that only cold air flows into the drum 200 or the circulation path fan 950 is not driven. Clothing may be left to cool naturally.
  • the laundry treatment apparatus of the present invention may further perform a temperature control step (S3) while performing the air supply step (S1) and the rotation step (S2).
  • the temperature of the refrigerant discharged from the compressor 930 may be controlled so as not to exceed a limit temperature set to decrease at a certain temperature over time from the maximum temperature Th of the refrigerant.
  • the limit temperature T_limit of the refrigerant is set to decrease during the entire period from the preheating period A1 to the cooling period A4. As a result, since the temperature of the refrigerant decreases in each section, the temperature of the drum 200 can be controlled so as not to exceed the limit temperature Tmax.
  • the limit temperature T_limit of the refrigerant may vary with time and may decrease as time elapses.
  • the compressor 930 may control the temperature of the drum by controlling the temperature of the refrigerant by controlling the RPM.
  • the first step S31 may be performed.
  • the compressor 930 may be accelerated and driven up to the heating RPM (rpm_H), and the heating RPM may correspond to a maximum RPM that can be reached by the compressor 930 during the drying process. Accordingly, the temperature of the refrigerant may be rapidly increased in the preheating section A1.
  • the third step S33 may be performed.
  • the compressor 930 may be controlled to be driven at a damping rate rpm (rpm_FR) lower than the constant rate rpm.
  • the compressor 930 may stop driving and the temperature of the drum 200 may decrease.
  • the temperature of the drum 200 may not exceed the limit temperature (Tmax).
  • the compressor 930 since the compressor 930 continues to operate without stopping even if the driving rpm decreases, the refrigerant is compressed to heat the air flowing into the drum 200. there is. Thus, the temperature of the drum 200 can be maintained without falling below a predetermined temperature below the limit temperature Tmax.
  • the laundry treatment apparatus of the present invention can prevent damage to clothes through not only the rotation step (S2) but also the temperature control step (S3).
  • Fig. 18 shows that the rotation step of the laundry treatment apparatus of the present invention includes a tumbling motion.
  • the rotating step (S2) may include a tumbling motion of rotating the drum 200 in one direction at a second speed (L1) that is lower than the first speed (H1) capable of providing an acceleration force of 1G or more.
  • the first speed H1 may correspond to 50 RPM or more
  • the second speed L1 may correspond to 50 RPM or less. may be related to speed.
  • the clothes may rise up attached to the inner wall of the drum 200 up to the center of rotation O of the drum 200 or higher than the center.
  • the clothes can move as close as possible to the diameter 2R of the drum 200 while falling from the upper part of one side higher than the center O of the drum to the lower part of the other side lower than the center O of the drum.
  • the area or time the clothes are exposed to the hot air supplied to the drum 200 may be longer.
  • the exposed surface facing the center (O) of the drum 200 is changed so that the entire surface of the clothing can be evenly exposed to hot air. there is.
  • the clothes handling apparatus of the present invention further provides an additional drum motion in addition to the tumbling motion to prevent wear and shrinkage of the clothes.
  • the drum motion applied in each section may be varied or various combinations may be applied.
  • the rotation step (S2) is the rotation speed of the drum 200, the rotation direction of the drum 200, and the rotational speed of the drum 200 in each section of the air supply step (S1).
  • the duration of the can be variously varied. That is, in the rotation step (S2) of the laundry treatment apparatus of the present invention, various motions are performed to expand the contracted clothing, reduce external forces such as mechanical force and frictional force applied to the clothing, or minimize friction between the clothing and the drum. can do.
  • the rotational speed of the drum 200 the rotational direction of the drum 200, the drum 200 according to the state of the clothes and the internal state of the drum 200 in the air supply step (S1).
  • the rotational speed holding times of (200) it is possible to prevent all shrinkage, abrasion, and damage of clothes.
  • the rotation step (S2) includes a high-speed section (H) for rotating the drum so that the clothes are rotated in a state attached to the inner wall of the drum, and rotating the drum so that the clothes fall and rotate on the inner wall of the drum. It may be composed of a low speed section (L).
  • the high-speed section (H) is a section in which the drum 200 rotates at a first speed (H1) or higher generating an acceleration force of 1G or more
  • the low-speed section (L) is a section in which the drum 200 rotates at a first speed (H1).
  • H1 first speed
  • L1 second speed
  • the second speed L1 may be set to 50 RPM or less, and the first speed H1 may correspond to a speed exceeding 50 RPM.
  • the drum 200 is rotated at the second speed (L1) for the preparation time, and then the drum 200 is rotated at the first speed (H1) for the expansion time. motion can be performed.
  • the clothes can be separated from the inner wall of the drum 200 and stirred inside the drum 200 during the preparation time, and can be attached to the inner wall of the drum 200 during the expansion time to receive an acceleration force of 1G or more. there is.
  • the expansion time may be set longer than the preparation time. Accordingly, the clothing may receive an acceleration force of 1G or more for longer than the stirring time.
  • the pulling motion may repeat that the clothing is pulled during the inflation time, the area to be pulled during the preparation time is changed, and then pulled again during the inflation time.
  • the contracted clothing may be expanded or the clothing may be pulled in advance to prevent contraction.
  • the pulling motion may be added to rotate during the waiting time at the third speed (L2).
  • Rotation during the waiting time at the third speed L2 in the pulling motion may be arranged between acceleration from the second speed L1 to the first speed H1. Accordingly, after the drum 200 rotates at the second speed L1 and is decelerated at the third speed L2, it can be accelerated to the first speed H1. As a result, the acceleration force applied to the clothes by the drum 200 is increased so that the clothes can be further expanded.
  • the standby time may be set to be smaller than the expansion time. As a result, in the pulling motion, more time for pulling clothes can be secured.
  • the waiting time may be set smaller than the preparation time.
  • the waiting time may be set smaller than the preparation time.
  • the expansion time may be set equal to the sum of the preparation time and the waiting time or greater than the sum of the preparation time and the waiting time. Accordingly, the time during which the clothes are pulled in the pulling motion may be equal to or longer than the time during which the clothes are stirred.
  • the high-speed section H and the low-speed section L may be arranged periodically.
  • the low-speed section (L) can be further divided into two-step speed section. Therefore, in the pulling motion, a total of three or more speed sections may be periodically repeated.
  • the drum 200 rotates at the first speed H1 for the expansion time, then decelerates at the second speed L1 and rotates for the preparation time, and then decelerates at the third speed L2 to stand by. After being rotated for a period of time, it is accelerated again to the first speed H1 and rotated during the expansion time may be periodically repeated.
  • the pulling motion may pass through 1G or more acceleration sections twice during one period.
  • Fig. 21 shows the state of clothes when the clothes handling apparatus of the present invention performs a pulling motion.
  • the clothes inside the drum 200 may be disposed in an initial length D1 state.
  • the drum 200 rotates at the second speed L1 during the preparation time or at the third speed L2 during the waiting time, and the clothes are It can be stirred in the drum 200 without being attached to the inner wall of the rise.
  • the drum 200 may be accelerated and rotated up to a first speed H1. Therefore, the drum 200 maintains the first speed H1 during the expansion time, and the expansion time may be set longer than the time the drum rotates once. Accordingly, the clothes can rotate by adhering to the inner wall of the drum 200 and expand along the inner wall of the drum 200 .
  • the clothing may be expanded by an expansion length D2 longer than the initial length D1.
  • the clothing may not be contracted by continuously receiving an expansion force, and may be expanded again even if it is contracted.
  • Fig. 22 shows that the rotating step includes a flipping motion.
  • the rotation step (S2) may include a flipping motion of rotating the drum 200 in both directions at a second speed (L1) lower than the first speed (H1) capable of providing an acceleration force of 1G or more.
  • the flipping motion may perform a tumbling motion in one direction for a predetermined period of time and then perform a tumbling motion in another direction for a predetermined period of time.
  • the predetermined time may correspond to a time when the drum rotates once.
  • the flipping motion corresponds to one rotation of the drum 200 clockwise at the second speed L1 and one rotation of the drum 200 counterclockwise at the second speed L1.
  • the drum 200 may generate an effect of turning the clothes inside out while agitating the clothes in one direction and then in the other direction.
  • the flipping motion may be intermittently performed at a specific point in time when the tumbling motion is performed. Also, when the flipping motion is performed, the rotational direction of the tumbling motion may be changed.
  • the predetermined period of time may correspond to a time during which the drum rotates N times.
  • the predetermined time may be set to 2 minutes or longer.
  • the flipping motion may correspond to performing the tumbling motion by periodically changing its direction.
  • clothes inside the drum 200 can be evenly exposed to hot air.
  • the flipping motion may also include rotating the drum 200 in one direction at the first speed H1 for a predetermined time and then rotating in the other direction at the first speed H1 for a predetermined time.
  • the flipping motion may include rotating the drum 200 in one direction at the first speed H1 for a predetermined time and then rotating in the other direction at the second speed L1 for a predetermined time.
  • Fig. 23 shows the state of clothes when the rotating step performs a flipping motion.
  • the drum 200 may rotate clockwise. At this time, when the drum 200 rotates at the second speed L1, the clothing may rise to a height higher than the center o of the drum and then fall down, like a tumbling motion.
  • the clockwise rotation of the drum 200 may be decelerated to momentarily stop or start counterclockwise rotation.
  • Clothes accommodated in the drum 200 may be distributed under the central (o) area of the drum.
  • the drum 200 may be accelerated and rotated in a counterclockwise direction.
  • the drum 200 rotates at the second speed L1
  • an effect of performing the tumbling motion in the opposite direction can be obtained.
  • the clothes may fall down after rising to a region higher than the center O of the drum.
  • the clothing since the rotation direction is opposite to that of the clockwise rotation, the clothing may be attached to the inner wall of the drum 200 and rise at a different part from that of the clockwise rotation. As a result, the clothes may be stirred inside the drum 200 while at least partially turned inside out.
  • the flipping motion may periodically repeat the motions of FIGS. 21 (A) to (C). Also, unlike shown, in the flipping motion, the drum 200 may rotate at a first speed H1.
  • Fig. 24 shows that the rotating step includes a knurling motion.
  • the rotating step (S2) includes a knurling motion in which a high-speed section (H) in which the clothes are rotated while attached to the inner wall of the drum and a low-speed section (L) in which the clothes are rotated while falling from the inner wall of the drum are periodically performed.
  • a high-speed section (H) in which the clothes are rotated while attached to the inner wall of the drum
  • a low-speed section (L) in which the clothes are rotated while falling from the inner wall of the drum are periodically performed.
  • the knurling motion rotates the drum 200 at a first speed H1 for a first time and then rotates the drum 200 at a second speed L1 lower than the first speed H1 for a second time. It may be a motion that periodically repeats the command. That is, in the knurling motion, the drum 200 may rotate periodically in a high-speed section (H) and a low-speed section (L).
  • the drum 200 rotates to generate an acceleration force of 1 G or more for a first time, the drum 200 rotates to generate an acceleration force of 1 G or less for a second time, and again for a first time. This corresponds to repeating the motion of rotating the drum 200 to generate an acceleration force of 1G or more.
  • the knurling motion may correspond to rotating the drum 200 at a first speed H1 for a first time and then repeating the tumbling motion for a second time.
  • the clothing rotates attached to the drum 200 for the first time, is separated from the drum 200 for the second time, stirred or dropped, and rotates attached again for the first time.
  • the time the clothes are attached to the inner wall of the drum 200 is set longer than even in the tumbling motion, and friction on the inner wall of the drum 200 can be minimized.
  • the clothes are fixed to the drum 200, so that the clothes can be prevented from rubbing against each other or being worn.
  • the knurling motion may set the first time period longer than the second time period or at least equal to the second time period.
  • the duration of the high-speed section H in the Nulgi Motion may be set equal to or longer than the duration of the low-speed section L, and the total time of the high-speed section H is equal to or longer than the duration of the duration. It can be set longer than the total time.
  • the knurling motion rotates the drum 200 at a first speed H1 for a first time while intensively supplying hot air to a region of the clothing 200 that does not contact the inner wall of the drum 200.
  • the clothes 200 are separated from the drum and stirred, and for the next first time, another area of the clothes 200 is moved to the drum ( 200), it is possible to change the area where the hot air is concentrated by not contacting the inner wall.
  • the drum in order to sufficiently secure the clothes on the inner wall of the drum 200 and sufficiently stir the clothes inside the drum 200, in the high-speed section (H), the drum It rotates at least one rotation or more, and in the low speed section (L), the drum may rotate at least one rotation or more.
  • the first time may be set to a time longer than the drum 200 rotates once
  • the second time may be set to a time longer than the drum 200 rotated once.
  • the first time period may be set to 2 minutes or more
  • the second time period may also be set to 2 minutes or more.
  • the knurling motion may further arrange a preparation section rotating at a third speed L2 lower than the second speed L1 for a third time between the high speed section H and the low speed section L.
  • the knurling motion may further decelerate the drum 200 up to the third speed L2 when decelerating the drum 200 from the first speed H1 to the second speed L1.
  • the third time period is set to be longer than the time period for the drum to rotate once, so that time for clothing to be properly distributed before being stirred while rising from the drum 200 can be secured.
  • the third time period is set shorter than the second time period, unnecessary drying delay may be prevented.
  • the third speed L2 may be a speed at which the clothes are prevented from rising above the central area O of the drum.
  • the Nulgi Motion rotates for a third time after the drum 200 rotates at a first speed H1 for a first time and then decelerates to a third speed L2 lower than the second speed L1. After that, it may include accelerating to the second speed (L1) and rotating for the second time, and repeating this process.
  • the rotating direction of the drum may be maintained without being changed. Accordingly, it is possible to prevent an excessive load from occurring on the motor unit 500 or excessive agitation and rubbing of clothes.
  • the first time of the knurling motion may be set longer than the expansion time of the pulling motion.
  • the second time period may be set longer than a preparation time for the pulling motion. This is because the knurling motion does not prevent the clothing from expanding, but rather induces the clothing to be sufficiently exposed to hot air while preventing frictional force from being applied to the clothing.
  • the ratio of the high-speed section H in the knurling motion may be smaller than the ratio of the high-speed section H in the pulling motion.
  • the time or period at which the next high-speed section (H) arrives after the high-speed section (H) has passed in the knurling motion is the time or period at which the next high-speed section (H) arrives after the high-speed section (H) has passed in the pulling motion. It can be set longer than the period.
  • both the pulling motion and the knurling motion may be common in that the high-speed section H and the low-speed section L are periodically performed.
  • the high-speed section (H) is set to be longer than the low-speed section (L), and the high-speed section (H) of the knurling motion is set to be longer than the high-speed section (H) of the pulling motion.
  • the low-speed section (L) of the knurling motion may be set longer than the high-speed section (H) of the pulling motion.
  • Fig. 25 shows the state of clothing when the rotating step performs a knurling motion.
  • the drum 200 may rotate clockwise at a second speed L1 for a second time.
  • the clothes may be repeatedly stirred while repeatedly rising and falling to a height corresponding to the central region (O) of the drum or to a place higher than the central region (O) of the drum.
  • a section rotating at the second speed L1 for a second time may correspond to a tumbling motion.
  • the drum 200 may rotate clockwise at a first speed H1 for a first time.
  • the clothes may adhere to the inner wall of the drum 200 and rotate for the first time.
  • the drum 200 may be slowly accelerated from the second speed L1 to the first speed H1.
  • the transition time from the low-speed section (L) to the high-speed section (H) in the nullgi motion may be set to about 1 minute. Accordingly, it is possible to prevent damage to the clothes by preventing excessive physical force from being applied to the clothes.
  • the clothes may be intensively dried by being exposed to hot air in areas that do not stick to the inner wall of the drum 200 .
  • the clothing sticks to the inner wall of the drum 200 and continuously rotates, the effect of being fixed to the drum 200 can be derived. Therefore, since the clothes and the drum 200 do not move relative to each other, friction between the clothes and the drum 200 can be prevented.
  • the drum 200 may be reduced to the first speed H1 and rotated again. At this time, the drum 200 may be decelerated to the third speed (L2) and rotated. As a result, the clothes can be surely separated from the inner wall of the drum 200 and continuously stirred while the drum 200 rotates. As the clothes are stirred, the area contacted with the inner wall of the drum 200 is exposed to the inside of the drum 200 and dried.
  • the deceleration time from the first speed H1 to the third speed L2 may be set to about 1 minute.
  • the drum 200 may be accelerated again to the second speed L1 and rotated again for a second time.
  • the clothing may be continuously exposed to hot air while rising and falling from the central region (o) of the drum 200 and may be repeatedly stirred. Accordingly, the clothes can be dried with higher efficiency than when the drum rotates at the first speed H1.
  • the drum 200 may be accelerated to a first speed H1 and rotated for a first time.
  • the knurling motion may dry clothes by intermittently performing the tumbling motion by repeating the above process.
  • the knurling motion can attach the clothes to the inner wall of the drum 200 in the middle of the tumbling motion to significantly reduce the time the clothes rub against the drum while being stirred.
  • the knurling motion can promote both drying and protection of clothes.
  • the knurling motion may be performed in the constant rate drying section A2. If the knurling motion is performed in the constant rate drying step (A2) when the dryness of the clothes approaches the target value b entering the decreasing rate drying section, friction or abrasion of the clothes can be prevented.
  • the knurling motion may be performed in the rate reduction drying section A3.
  • the reduced rate drying section A3 since the dryness of clothes exceeds the target value b, fluff or abrasion may easily occur on the clothes. Therefore, the knurling motion may be performed to protect the clothes in the reduced rate drying section.
  • the knurling motion is performed at the end of the falling rate drying section. Since the knurling motion is a motion in which the section for fixing the clothes to the inner wall of the drum 200 is set long, drying of the clothes may not be guaranteed if it is performed at the beginning of the thermal drying section, and the end of the rate reduction drying section is the most This is because the clothes are in a dry state, so there is a great need to protect them from wear and tear.
  • the knurling motion may be performed when the dryness of the clothes reaches a specific value d in the decreasing rate drying section, and may be performed until the decreasing rate drying section ends.
  • Fig. 26 shows that the rotating step includes a rocking motion.
  • the rotation step (s2) may include a rocking motion of periodically varying the rotational speed of the drum in two or more regions.
  • the shaking motion may include periodically rotating the drum at a first speed H1 at which the clothes adhere to the inner wall of the drum and rotate at a second speed L1 that is slower than the first speed H1. .
  • the shaking motion may cause the clothes to be separated from each other according to the weight by providing a difference in acceleration to the clothes due to a difference in rotational speed of the drum.
  • the shaking motion includes a first speed (H1) at which the clothes are attached to the inner wall of the drum and rotated, a second speed (L1) slower than the first speed (H1), and a second speed (L1) slower than the second speed (L1). It may include periodically varying the rotational speed of the drum 200 with at least two of the third speeds L2.
  • the speed of the drum 200 is sequentially changed to the second speed L1, the first speed H1, and the third speed L2.
  • the speed of the drum 200 is sequentially changed to the second speed L1, the first speed H1, and the third speed L2.
  • the shaking motion may include repeatedly performing the speed of the drum 200 at the second speed L1, the first speed H1, and the third speed L2.
  • the rocking motion rotates the drum 200 at the second speed L1, accelerates the drum 200 to the first speed H1, and then moves the drum 200 to the third speed L2. It may include repeating deceleration to .
  • the drum 200 accelerates in the rocking motion, it accelerates from the third speed L2 to the second speed L1, and then accelerates from the second speed L1 to the first speed H1. can Accordingly, it is possible to prevent the drum 200 from rapidly accelerating, thereby preventing an excessive load from being generated on the motor unit 500 and preventing clothes from being pressed against the inner wall of the drum 200 .
  • the drum 200 decelerates in the shaking motion, it decelerates from the first speed H1 to the third speed L2 at once to maximize the difference in inertial force on the clothes attached to the inner wall of the drum 200.
  • the drum 200 decelerates, a large change in acceleration occurs, so that the clothes may be separated from each other due to a difference in inertial force.
  • the shaking motion is a motion that repeats the process of accelerating from the low-speed section (L) to the high-speed section (H) and decelerating from the high-speed section (L) to the low-speed section (L), and the high-speed section (H) When decelerating from the low speed section (L), it can decelerate more than before acceleration.
  • the purpose of the shaking motion is to form a difference in inertial force on the clothes by changing the acceleration inside the drum 200, the shorter the period of changing the speed is advantageous.
  • the time for changing the speed of the drum in the rocking motion can be set to be longer than the time for the drum to rotate once and shorter than 1 minute.
  • the period may be set between 10 seconds and 20 seconds.
  • all speed cycles of the drum 200 may be completed within one minute.
  • a difference in inertial force acting on the clothes is generated by changing an acceleration force applied to the clothes through a change in rotational force of the drum 200 .
  • heavy clothes have high inertia and respond sensitively to changes in the rotational speed of the drum 200
  • light clothes have low inertia and respond insensitively to changes in the rotational speed of the drum 200. Therefore, heavy clothes and light clothes can be separated from each other according to the change in rotational speed of the drum 200 due to the difference in inertial force.
  • the shaking motion has an advantage in that the drying process can be performed by separating the clothes according to the difference in load of the clothes.
  • the shaking motion has an effect of separating clothes that have been dried a lot and clothes that have been dried less from each other according to the difference in drying degree of the clothes.
  • clothes containing a relatively large amount of moisture react sensitively to changes in the rotation of the drum 200, they are frequently exposed to hot air passing through the drum 200 while continuously rising and falling at a high level inside the drum 200. will be. Accordingly, clothes having a low dryness level or needing more drying may be dried more in the shaking motion.
  • the duration of each section may be the same.
  • the nullgi motion may be performed after the tumbling motion
  • the shaking motion may be performed after the nullgi motion. This is to classify clothes dried through the tumbling motion and the knurling motion.
  • the shaking motion may be performed before the rolling motion. Since the rolling motion is a motion of drying clothes while agitating them at a low speed, the effect of the rolling motion is maximized only when the rolling motion is performed after separating the clothes that require further drying from the clothes that have been sufficiently dried.
  • the shaking motion includes a high-speed section (H)
  • H high-speed section
  • Fig. 27 shows the state of clothing when the rotating stage performs a rocking motion.
  • a total of three types of clothes may be accommodated inside the drum 200.
  • the degree of drying may be different depending on the material of the clothes or the arrangement inside the drum 200.
  • clothes No. 1 may be in a wet state containing a lot of moisture because drying is not sufficiently performed.
  • Clothing No. 2 may be in a dry state with little moisture due to sufficient drying.
  • Clothing No. 3 may be in a partially dried state.
  • clothes No. 1, No. 2, and No. 3 can be stirred inside the drum 200 while forming a similar trajectory.
  • Rotation at the second speed L1 may take about 10 seconds or 20 seconds.
  • the drum 200 may be accelerated to the first speed H1 or to an excessive speed.
  • clothes No. 1 since clothes No. 1 are heavy, they adhere to the inner wall of the drum 200 and rotate together with the drum 200 .
  • the clothing number 3 is lighter in weight than the clothing number 1, it may change less sensitively to the speed change of the drum 200 than the clothing number 1. Therefore, although it is disposed close to the inner wall of the drum 200, the force attached to the inner wall of the drum 200 may be weaker than that of No. 1.
  • clothes No. 2 are lighter in weight than Nos. 1 and 3, they respond less sensitively to the speed change of the drum 200. Therefore, rather than sticking directly to the inner wall of the drum 200, it may fall similarly to the trajectory rotated at the second speed L1.
  • clothing number 1 may repeatedly ascend and descend in the drum 200 according to the rotational speed of the drum 200, clothing number 3 may have a smaller height than clothing number 1, and Clothing may have a smaller rising height than No. 3 clothing. Accordingly, clothing No. 3 may be exposed to hot air more than clothing No. 2, and clothing No. 1 may be exposed to hot air more than clothing No. 3.
  • the No. 3 garment may rub less against the drum 200 than the No. 1 garment, and the No. 2 garment may rub less against the drum 200 than the No. 3 garment.
  • fluff may be generated even with a small friction as the clothes are closer to the dry state, but fluffing can be prevented due to the shaking motion.
  • Fig. 28 shows that the rotating step includes a rolling motion.
  • the rotating step (S2) may include a rolling motion of rotating the drum so that the clothes fall or roll lower than the center (O) of the drum.
  • the rolling motion is a motion of rotating the drum 200 at a speed lower than the second speed L1 at which the tumbling motion is generally performed.
  • the moving range or trajectory of the clothes inside the drum 200 is minimized, and the mechanical force applied to the clothes is also minimized, so that the clothes can be prevented from being damaged or worn.
  • clothes are repeatedly rolled and the entire area is evenly exposed to the inside of the drum 200, so that drying can be effectively performed.
  • the rolling motion 200 since the rolling motion 200 is to minimize the physical force applied to clothes, the rolling motion can maintain the rotational speed of the drum 200 at a constant speed without changing the rotational direction of the drum 200.
  • the rolling motion may be mainly performed in the reduced rate drying section A3.
  • Fig. 29 shows the state of clothing when the rotating step performs a rolling motion.
  • the clothing may rise due to frictional force with the inner wall of the drum 200.
  • the clothes cannot rise higher than the radius R of the drum at the bottom of the drum 200 and can be separated from the inner wall of the drum 200 and rolled toward the bottom 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 to a speed at which the clothes are prevented from moving above the center of the drum.
  • the clothing continuously moves from the bottom of the drum 200 to only one side and the rolling process is repeated, so that the drop impact is small and shrinkage of the clothing can be prevented.
  • the time during which the rolling motion is performed may be set longer than the time during which the shaking motion is performed. This is because the shaking motion is a motion of sorting clothes, and the rolling motion is a motion of drying clothes.
  • the rolling motion is performed later than the shaking motion. This is because the clothes requiring drying through the shaking motion must be separated from the clothes on which drying has been performed so that they can be more evenly exposed to the hot air in the rolling motion.
  • the shaking motion is performed in the constant rate drying section A2 and the rolling motion is performed in the decreasing rate drying section A3.
  • Fig. 30 shows that the rotating step includes a stop motion.
  • the rotating step (S2) may include a stop motion of intermittently rotating the drum 200.
  • the stop motion may repeatedly perform rotation of the drum 200 and stop of the drum, and when the drum 200 rotates, the rotation direction of the drum 200 may be changed.
  • the stop motion when the drum 200 rotates once in one direction, it may rotate in another direction after waiting for a stop time.
  • a time during which the drum 200 is stopped may be set longer than a time during which the drum 200 rotates.
  • the stopping time of the drum may be set to be three times or more than the rotating time of the drum.
  • the clothes are not continuously pressed by their own weight, and wrinkles can be prevented from being changed due to a change in position.
  • the drum in the stop motion, the drum may be positioned in a stationary state.
  • the drum 200 intermittently rotates clockwise or counterclockwise, the position of the clothes may be changed, the clothes may be stirred, or the clothes may be turned over.
  • the rotating speed of the drum 200 in the stop motion may be set as the protection speed L4.
  • the driving unit is directly coupled to the drum 200 to rotate the drum 200, the rotation direction, rotation time, and rotation speed of the drum 200 can be freely adjusted. can be changed
  • the rotation step (S2) of the laundry treatment apparatus of the present invention does not rotate the drum 200 in one direction at a constant speed, but adjusts the rotational speed and It can perform several motions that change the direction of rotation.
  • various motions may be applied to each section of the air supply step in order to protect clothes in all drying courses and options.
  • various motions can be applied to each section of the air supply step in the protection course that protects the cloth.
  • the rotating step (S2) includes a high-speed section (H) in which the drum is rotated so that the clothes are rotated in a state attached to the inner wall of the drum 200, and the clothes are rotated on the inner wall of the drum 200.
  • It may be composed of a low-speed section (L) for rotating the drum so as to fall and rotate, and the ratio of the high-speed section (H) to the low-speed section (L) for each specific section during the progress of the air supply step (S1) is mutually
  • it is set differently it is possible to perform the drying cycle while protecting the fabric and preventing the shrinkage of the clothes at the same time.
  • FIG 31 shows a rotation step (S2) that can be applied in the preheating section of the air supply step (S1).
  • the preheating section A1 is a state in which clothes in a wet state are accommodated in the drum 200, and corresponds to a section in which a drying cycle starts. Accordingly, the clothes located in the preheating section A1 may be in a state contracted by water. That is, the fibers of the clothing may be in a contracted state from the first diameter D1 to the second diameter D2.
  • the clothes may be dried in a contracted state in the form of fibers having a second diameter D2.
  • the rotation step S2 in the preheating section A1 may perform a pulling motion.
  • the clothes are expanded in the preheating section A1 so that the fibers of the clothes can come back closer to the first diameter D1.
  • the clothes in the wet state may be clumped together while going through the spin-drying process.
  • the pulling motion is performed repeatedly at the first speed H1 and the second speed L1
  • the clothes are pulled while being stirred, so that clumping of the clothes can be eliminated.
  • the pulling motion may be performed during the preheating period A1.
  • the preheating section (A1) since the refrigerant of the compressor is not heated to a specific temperature (TC) or the drive RPM of the compressor is not raised to the maximum RPM or a specific RPM, the speed of the drum increases through the pulling motion. Even if it is periodically and quickly changed, the energy consumed by the laundry treatment device may not exceed a limit range.
  • the clothes may be dried during the pulling motion.
  • the pulling motion and the nulgi motion may be performed together.
  • the nullgi motion may be performed after the pulling motion. Accordingly, partial agitation and positional change of the clothing along with expansion of the clothing during the pulling motion can be ensured more reliably.
  • the high speed section H and the low speed section L may be repeatedly arranged in the rotation step S2.
  • the summing time of the high-speed section (H) may be set longer than the summing time of the low-speed section (L).
  • the duration of the high-speed section (H) may be set longer than the duration of the low-speed section (L).
  • the rotation at the second speed L1 in the low speed section L in the pulling motion is defined as a constant speed section and the rotation at the third speed L2 is classified as a deceleration section, in the preheating section A1 It can be seen that the high-speed section H, the constant-speed section, and the deceleration section are arranged periodically.
  • the preheating section (A1) since the high speed section (H) is longer than the low speed section (L), it can be regarded as a section that focuses more on the expansion of the clothes rather than the stirring of the clothes.
  • the preheating section A1 ends and the constant rate drying section A2 begins.
  • the pulling motion may end when the preheating section A1 ends and the constant rate drying section A2 is entered.
  • the constant rate drying section A2 is a section in which the maximum amount of hot air flows into the drum 200, and corresponds to a section in which clothes are dried in earnest. Therefore, it is preferable that the clothes inside the drum 200 be exposed to hot air as much as possible.
  • the tumbling motion may be performed first. Therefore, as the tumbling motion is performed after the end of the pulling motion, the clothing rises above the center O of the drum in an inflated state and moves from the drum 200 at a lower point than the highest point of the drum 0. While falling apart, it can be exposed to the hot air for as long as possible.
  • the clothes accommodated in the drum 200 can be divided into clothes that have been sufficiently dried by hot air and clothes that require further drying.
  • the air gap (C) collapses due to the drop impact of the sufficiently dried clothes, and the fiber can be contracted to the third diameter (D3), and the surface is the drum ( 200) may rub against the inner wall or other clothing and be damaged.
  • the clothes that require further drying may be separated from the clothes that have been sufficiently dried, and may be intensively exposed to the hot air while moving along with the motion of the drum 200 .
  • clothes that have been sufficiently dried do not fall along with the clothes that need to be dried, so they may not be subjected to a drop impact together.
  • the evaporation of moisture reduces the load and does not respond sensitively to the motion of the drum 200, preventing overdrying and preventing friction or abrasion.
  • the tumbling motion may correspond to a motion of intensively drying the clothes
  • the shaking motion may correspond to a motion of separating and additionally drying a part of the clothes that requires more drying.
  • the duration of the shaking motion may be shorter than the duration of the tumbling motion. Since the shaking motion is for separating sufficiently dried clothes, it may be performed at the end of the constant rate drying section A2.
  • the shaking motion may be performed when the dryness of the clothes reaches the target value b. That is, it can be performed from when the dryness of the clothes reaches the target value (b) in the constant rate drying section (A2) until the end of the constant rate drying section (A2) and entering the decreasing rate drying section (A3). .
  • the shaking motion may be performed after the tumbling motion is performed. Also, the duration of the shaking motion may be set shorter than the duration of the tumbling motion.
  • the shaking motion is a motion for sorting dried clothes
  • the tumbling motion is a motion for drying clothes.
  • nullgi motion may be further performed between the tumbling motion and the shaking motion.
  • the high-speed section (H) can achieve the effect of performing the tumbling motion, and the low-speed section (L) allows the clothes to adhere to the inner wall of the drum 200, causing the drum 200 to move. , it is possible to prevent the clothes from rubbing against the drum 200 or from rubbing against each other.
  • the knurling motion may be performed to prevent damage or friction of the clothes when the drying of the clothes has progressed to a certain extent as a result of the tumbling motion.
  • the knurling motion may be regarded as putting a rest period in which stirring of clothes is stopped during the tumbling motion.
  • the knurling motion may be performed when the reference time elapses in the constant rate drying section A2. That is, when the reference time elapses while the tumbling motion is being performed, the nullgi motion may be performed.
  • the reference time may be set to a time when the dryness level of the clothes corresponds to the reference value (a), and may be set to a time when 20 minutes have elapsed after entering the constant rate drying section.
  • the knurling motion may be performed for a certain period of time when the dryness of the clothes reaches a reference value (a) lower than the target value (b) in the constant rate drying section (A2).
  • the target value (b) of the dryness level may correspond to 80% or more, and for example, the reference value (a) may correspond to 70%.
  • nullgi motion may be performed after the tumbling motion ends and before the shaking motion is performed.
  • the knurling motion since the knurling motion also protects the clothes and dries the entire clothes, it may be performed before the shaking motion.
  • the duration of the nulgi motion may be shorter than the duration of the tumbling motion and longer than the duration of the shaking motion.
  • the last one can always end with the shaking motion, and the tumbling motion and the nullgi motion can be performed before.
  • the shaking motion may be performed before the nullgi motion. That is, it is effective to intensively dry a specific area of the clothes while preventing abrasion of the clothes through the knurling motion in a state in which the clothes are all sorted due to the shaking motion.
  • the duration of the shaking motion may be set longer than the duration of the nulgi motion.
  • the shaking motion is also a section in which clothes are sorted, since it includes both the high-speed section (H) and the low-speed section (L), the clothes may be exposed to hot air while being sorted.
  • the shaking motion can intensively dry clothes requiring drying while sorting the clothes, it may be performed longer than the duration of the knurling motion or the tumbling motion.
  • the low-speed section L can be set longer than the high-speed section H. there is.
  • the constant rate drying section (A2) unlike the heat drying section (A1), is arranged and distributed more low-speed section (L) can be seen as a section in which the stirring of clothes and exposure to hot air form the center.
  • the rotating step S2 can be considered to further include a variable section in which the rotational speed of the drum is varied in the constant rate drying section A2. , it can be seen that the variable period is performed until the clothing enters the falling rate period.
  • the shaking motion is performed when the dryness level reaches the target value (b), it can be considered that the variable section starts when the dryness level reaches the reference value (a) after entering the constant rate drying section.
  • variable section starts when the reference time elapses after entering the constant rate drying section.
  • the variable section includes a section in which the drum rotates faster than the high speed section H and a section in which the drum rotates at a slower speed than the high speed section H. It can be seen that all segments are included. In addition, in the variable section, it can be seen that the fast section, the high-speed section (H), and the slow section are periodically arranged.
  • the low-speed section L is arranged until the start of the variable section. Since the tumbling motion is performed longer than the shaking motion, it can be seen that the duration of the low-speed section (L) in the constant rate drying section (A2) is set longer than the duration of the variable section.
  • the rotation step (S2) includes the high-speed section H and the low-speed section between the low-speed section L and the variable section. It can be seen that the interval (L) is periodically arranged repeatedly.
  • the decreasing rate drying section A3 may be performed.
  • a significant amount of moisture is removed from clothes in the constant rate drying section A2, and heat of vaporization becomes insufficient, so that the temperature inside the drum 200 or the air discharged to the circulation passage part 930 is reduced. It can be seen as the period where the temperature starts to rise.
  • the fact that the temperature inside the drum 200 rises means that the drying of the clothes has sufficiently progressed. Accordingly, when the dryness level of the clothes enters the set value c higher than the target value b, it can be regarded that the reduced rate drying period A3 starts.
  • the set value (c) may correspond to 80 percent.
  • the reduced rate drying section A3 is a section in which most of the clothes are sufficiently dried, but some clothes or some areas of the clothes are not completely dried.
  • the rotating step S2 may perform a rolling motion.
  • the rolling motion may be performed for a set time period, and may be performed until a knurling motion described later is performed.
  • a knurling motion may be further performed in the rate reduction drying section A3.
  • the high speed section H may be set to be much longer than the low speed section L.
  • the clothes 200 are fixed to the inner wall of the drum 200 and fall from the drum 200 or rub against the drum 200 and the clothes can be prevented.
  • the portion exposed to the inside of the drum 200 may be continuously dried. Therefore, in the knurling motion, clothes can be protected while drying is performed.
  • the knurling motion may be performed when the dryness of the clothes reaches a specific value (d) that is slightly smaller than the complete value (e) and higher than the set value (c).
  • the knurling motion may be performed after the rolling motion. That is, when the rolling motion is finished, the knurling motion may be performed.
  • the execution time of the rolling motion may be set longer than the execution time of the knurling motion. This is because the rolling motion has a higher drying efficiency than the knurling motion, and the knurling motion may have an effect of protecting cloth when the clothes are dried over a specific value (d).
  • a rolling motion may be performed at the beginning and a knurling motion may be performed at the end.
  • the rotational speed of the drum can be set faster in the later part of the reduced rate drying section A3 than in the initial part. That is, at the end of the reduced rate drying period, the drum may rotate so that the clothes adhere to the inner wall of the drum and rotate one or more revolutions due to the knurling motion.
  • the falling rate drying section is set so that the drum rotates more slowly in the initial section than in the end section.
  • the drum may initially rotate so that the clothes may be separated from the inner wall of the drum or rolled by the rolling motion.
  • the duration of the low speed section L is shorter than the high speed section H It can be seen that it is set longer than the duration of
  • the low speed section L of the rotation step S2 is set so that the clothes fall below the height of the center of the drum.
  • the duration of the high-speed section (H) from the start of the high-speed section (H) to the completion of the reduced rate drying section (A2) is the low-speed section. It can be seen that it is set equal to or longer than the duration of (L).
  • the point at which the high-speed section (H) starts in the rotation step (S2) is a specific value at which the dryness level is higher than the set value (c). It can be seen that it is set to the point at which (d) is reached.
  • the cooling section (A4) may be entered.
  • the finished value (e) may be set to a dryness of 90% or more.
  • the internal temperature of the drum 200 is higher than that of the outside air, so it can be regarded as a section in which the user may be exposed to fire when the door is opened.
  • the heat exchanger 900 is not driven, and only the circulation blowing fan 950 is driven so that the clothes can be cooled.
  • the stop motion may be performed in the cooling section A4. That is, while the drum 200 rotates intermittently through the stop motion, it is possible to prevent wrinkles from occurring on the clothes.
  • the rotation step (S2) performed in the air supply section (S1) selectively performs one of a plurality of drum motions according to time, thereby preventing damage and shrinkage of the clothes, and drying can be completed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

La présente invention concerne un appareil de traitement de vêtements qui permet diverses combinaisons de mouvement de tambour optimisées capable d'empêcher un endommagement ou un rétrécissement de vêtements dans chacune parmi une section de préchauffage, une section de séchage à vitesse constante, une section de séchage à vitesse réduite et une section de refroidissement.
PCT/KR2022/012522 2021-04-19 2022-08-22 Appareil de traitement de vêtements WO2023027452A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22861662.9A EP4382660A1 (fr) 2021-04-19 2022-08-22 Appareil de traitement de vêtements
CN202280071544.XA CN118159700A (zh) 2021-04-19 2022-08-22 衣物处理装置
AU2022332769A AU2022332769A1 (en) 2021-04-19 2022-08-22 Clothing treating apparatus

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JP2000084287A (ja) * 1998-09-11 2000-03-28 Matsushita Electric Ind Co Ltd 洗濯機
KR20060023715A (ko) 2004-09-10 2006-03-15 삼성전자주식회사 블랙 매트릭스 제조방법 및 이를 갖는 컬러필터 기판의제조방법
KR20130089026A (ko) * 2012-02-01 2013-08-09 엘지전자 주식회사 세탁장치의 제어방법
KR20190023445A (ko) * 2017-08-29 2019-03-08 엘지전자 주식회사 의류처리장치의 제어방법
KR20190121656A (ko) 2018-04-18 2019-10-28 엘지전자 주식회사 의류처리장치 및 제어방법
KR20190130899A (ko) * 2018-05-15 2019-11-25 엘지전자 주식회사 의류처리장치 및 그의 제어방법
KR20200065932A (ko) 2018-11-30 2020-06-09 엘지전자 주식회사 건조기
WO2021025194A1 (fr) * 2019-08-05 2021-02-11 엘지전자 주식회사 Appareil de traitement de vêtements comprenant une caméra, et son procédé de commande

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000084287A (ja) * 1998-09-11 2000-03-28 Matsushita Electric Ind Co Ltd 洗濯機
KR20060023715A (ko) 2004-09-10 2006-03-15 삼성전자주식회사 블랙 매트릭스 제조방법 및 이를 갖는 컬러필터 기판의제조방법
KR20130089026A (ko) * 2012-02-01 2013-08-09 엘지전자 주식회사 세탁장치의 제어방법
KR20190023445A (ko) * 2017-08-29 2019-03-08 엘지전자 주식회사 의류처리장치의 제어방법
KR20190121656A (ko) 2018-04-18 2019-10-28 엘지전자 주식회사 의류처리장치 및 제어방법
KR20190130899A (ko) * 2018-05-15 2019-11-25 엘지전자 주식회사 의류처리장치 및 그의 제어방법
KR20200065932A (ko) 2018-11-30 2020-06-09 엘지전자 주식회사 건조기
WO2021025194A1 (fr) * 2019-08-05 2021-02-11 엘지전자 주식회사 Appareil de traitement de vêtements comprenant une caméra, et son procédé de commande

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