Method for controlling laundry treatment apparatus

Abstract

The present invention relates to a method for controlling a treatment apparatus having a tub providing a space for storing water and a drum rotatably provided inside the tub to accommodate an object to be treated. The method comprises: a first dehydration step of rotating the drum at a preset first dehydration speed to remove water from the object to be treated; a rotation step of rotating the drum at a sensing speed lower than the first dehydration speed; an attachment detection step of comparing the number of rotations of the drum in the rotation step with the number of speed inflection points of the drum in the rotation step to determine whether the object to be treated is attached to the circumferential surface of the drum; and a second dehydration step of, when the object to be treated is attached to the circumferential surface of the drum, sequentially performing an untangling dehydration of continuously performing a process of accelerating and a process of decelerating the drum to a speed lower than a preset second dehydration speed, and a maintenance dehydration of rotating the drum at the second dehydration speed for a preset maintenance time.

Description

Control method of a clothing processing device

[0001] This application relates to a control method for a clothing processing device.

[0002] A clothing processing device is a general term for a device comprising a washing machine for washing objects such as clothing, a dryer for drying objects, and a combined washing machine capable of washing and drying objects.

[0003] Clothing processing devices can be classified into top loading and front loading methods based on the method of feeding the items to be processed into the drum, and may include a cabinet forming the exterior.

[0004] A washing machine or similar device that performs washing of a target object may remove contaminants adhering to the target object by placing the target object into the drum. The washing process of the target object may include a washing process, a rinsing process, a spin-drying process, a drying process, etc. The spin-drying process may be performed for the purpose of removing moisture present on the target object.

[0005] The dewatering process is a process of separating water from the target object through centrifugal force by rotating the drum. Since the drum must rotate at high speed to remove water from the target object, the dewatering process may cause a phenomenon of film adhesion in which the target object remains attached to the circumferential surface of the drum.

[0006] Meanwhile, the phenomenon of foam adhesion caused by the dehydration process can hinder the smooth discharge of water separated from the object to be treated, and may cause inconvenience to the user when withdrawing the object after the treatment process is completed.

[0007] Furthermore, in the case of a garment processing device capable of performing a drying process after a dehydration process, the aforementioned fabric adhesion phenomenon can cause a decrease in drying efficiency. This is because the drying process involves supplying drying air into the drum to vaporize water from the workpiece; however, if the workpiece remains in close contact with the circumferential surface of the drum due to the fabric adhesion phenomenon, it becomes difficult to supply drying air to the entire workpiece.

[0008] To solve the aforementioned problem, some conventional garment processing devices were designed to detect whether fabric adhesion had occurred. For example, some conventional garment processing devices measured the current value supplied to the motor for drum rotation and determined whether fabric adhesion had occurred by simply comparing the measured current value with a preset reference value (CN114592321A). The method of determining fabric adhesion by measuring the current value supplied to the motor had the disadvantage that it was difficult to distinguish whether the cause of the current value change was fabric adhesion or a state where the distribution of the garment was uneven (load imbalance).

[0009] The present invention aims to solve the problem of providing a control method for a garment processing device capable of determining a fabric attachment phenomenon.

[0010] The present invention aims to solve the problem of providing a control method for a garment processing device capable of determining a fabric attachment phenomenon by comparing the number of rotations of a drum with the number of inflection points of the drum's rotational speed.

[0011] The present invention aims to solve the problem of providing a control method for a garment processing device capable of separating a processing target from a drum when a fabric attachment phenomenon occurs.

[0012] The present invention aims to solve the problem of providing a control method for a garment processing device that improves user convenience by resolving the phenomenon of fabric sticking before the completion of washing.

[0013] The present invention aims to solve the problem of providing a control method for a garment processing device that can increase drying efficiency by resolving the phenomenon of fabric adhesion before drying.

[0014] The present invention aims to solve the problem of providing a control method for a garment processing device that controls the dehydration process differently depending on whether a fabric adhesion phenomenon occurs.

[0015] The present invention provides a method for controlling a processing device comprising a tub providing a space for storing water and a drum rotatably provided inside the tub to accommodate a processing target, the method comprising: a first dehydration step of removing water from the processing target by rotating the drum at a preset first dehydration speed; a rotation step of rotating the drum at a detection speed lower than the first dehydration speed; an attachment detection step of determining whether the processing target is attached to the circumferential surface of the drum by comparing the number of rotations of the drum in the rotation step with the number of speed inflection points of the drum in the rotation step; and a second dehydration step of sequentially performing a process of accelerating the drum to a speed lower than the preset second dehydration speed and a process of decelerating the drum, and a process of maintaining the drum at the second dehydration speed for a preset maintenance time when the processing target is attached to the circumferential surface of the drum.

[0016] The above control method may further include a drainage step initiated prior to the first dehydration step to discharge water inside the tub to the outside of the tub.

[0017] The second dehydration speed can be set to the same speed as the first dehydration speed or to a higher speed than the first dehydration speed.

[0018] When the above-mentioned processing target is separated from the circumferential surface of the drum, the second dehydration step may only perform the maintenance dehydration.

[0019] The above-mentioned fluffing dehydration may include: a first fluffing dehydration in which the drum is accelerated to a first speed lower than the second dehydration speed, and when the first speed is reached, the drum is decelerated to stop the rotation of the drum; and a second fluffing dehydration in which the drum is accelerated to a second speed lower than the second dehydration speed and higher than the first speed, and when the second speed is reached, the drum is decelerated to stop the rotation of the drum.

[0020] The above control method may perform a popping step of separating the target to be processed from the circumferential surface of the drum after the completion of the second dehydration step.

[0021] The above control method may execute a drying step in which air is supplied to the tub to dry the target to be processed after the completion of the above-mentioned popping step.

[0022] The above-mentioned popping step may include: an acceleration step of rotating the drum in a first direction set as either clockwise or counterclockwise at a rotational speed that induces a centrifugal force of 1G or more on the processing target; and a braking step of temporarily stopping the rotation of the drum when the drum rotates at an angle of 90 degrees or more and 180 degrees or less in the first direction relative to the bottom of the drum.

[0023] The above-mentioned popping step may further include a starting step of rotating the drum in the second direction at an angle of less than 90 degrees before the start of the above-mentioned acceleration step.

[0024] The attachment detection step can determine whether the processing target is attached to the circumferential surface of the drum by comparing the number of rotations of the drum in the rotation step with the number of upper inflection points where the speed of the drum changes from an upward section to a downward section in the rotation step.

[0025] If the number of upper inflection points in the above rotation step is greater than the number of rotations of the drum, the attachment detection step may determine that the processing target is separated from the circumferential surface of the drum.

[0026] If the number of upper inflection points in the above rotation step is less than or equal to the number of rotations of the drum, the attachment detection step can determine that the processing target is attached to the circumferential surface of the drum.

[0027] The attachment detection step can determine whether the processing target is attached to the circumferential surface of the drum by comparing the number of rotations of the drum in the rotation step with the number of lower inflection points where the speed of the drum changes from a descending section to an ascending section in the rotation step.

[0028] If the number of the lower inflection points is greater than or equal to the number of rotations of the drum, the attachment detection step can determine that the processing target is separated from the circumferential surface of the drum.

[0029] If the number of the lower inflection points is less than the number of rotations of the drum, the attachment detection step can determine that the processing target is attached to the circumferential surface of the drum.

[0030] The attachment detection step can compare the number of rotations and the number of speed inflection points in the entire section of the rotation step or in a part section of the rotation step.

[0031] The above detection speed can be set to a speed that induces a centrifugal force of less than 1G on the processing target.

[0032] The above rotation step can rotate the drum in only one of the clockwise and counterclockwise directions.

[0033] The above control method may execute a stopping step of stopping the drum for a preset time before the start of the rotation step when the first dehydration step is completed.

[0034] The present invention provides a method for controlling a processing device comprising a tub providing a space for storing water and a drum rotatably provided inside the tub to accommodate a processing target, the method comprising: a first dehydration step of removing water from the processing target by rotating the drum at a preset first dehydration speed; a rotation step of rotating the drum at a detection speed lower than the first dehydration speed; an attachment detection step of determining whether the processing target is attached to the circumferential surface of the drum by comparing the number of speed inflection points of the drum generated while the drum is rotated up to a preset number of times in the rotation step with the preset number of times; a second dehydration step of sequentially performing a process of accelerating the drum to a speed lower than the preset second dehydration speed and a process of decelerating the drum, and a process of maintaining the drum at the second dehydration speed for a preset maintenance time when the processing target is attached to the circumferential surface of the drum.

[0035] The present invention provides a control method for a garment processing device capable of determining a fabric attachment phenomenon.

[0036] The present invention provides a control method for a garment processing device capable of determining a fabric attachment phenomenon by comparing the number of rotations of a drum with the number of inflection points of the drum's rotational speed.

[0037] The present invention provides a control method for a garment processing device capable of separating a processing target from a drum when a fabric attachment phenomenon occurs.

[0038] The present invention provides a control method for a garment processing device that improves user convenience by resolving the phenomenon of fabric sticking before the completion of washing.

[0039] The present invention provides a control method for a garment processing device that can increase drying efficiency by resolving the phenomenon of fabric adhesion before drying.

[0040] The present invention provides a control method for a garment processing device that controls the dehydration process differently depending on whether a fabric adhesion phenomenon occurs.

[0041] Figures 1 and 2 illustrate an example of a clothing processing device.

[0042] Figures 3 and 4 illustrate examples of an air supply section and a heat exchange section.

[0043] Figure 5 illustrates an example of a control method for a clothing processing device.

[0044] Figure 6 illustrates the characteristics regarding the rotational speed of the drum when a foam adhesion phenomenon occurs.

[0045] Figure 7 illustrates the characteristics regarding the rotational speed of the drum when no foam adhesion occurs.

[0046] Figure 8 illustrates an example of a foaming process to resolve foam adhesion.

[0047] FIGS. 9 and FIGS. 10 illustrate other embodiments of a control method for a clothing processing device.

[0048] The configuration of the device or control method described below is intended only to explain embodiments of the present invention and is not intended to limit the scope of the invention; reference numbers used identically throughout the specification indicate identical components.

[0049] The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, terms such as "comprising," "having," or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification; therefore, unless otherwise specifically defined, they do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0050] Expressions indicating relative or absolute arrangements, such as "in a certain direction," "along a certain direction," "parallel," "perpendicular," "to the center," "concentric," or "coaxial," not only strictly represent such arrangements but also indicate a state of relative displacement with respect to tolerances or angles or distances to which the same function is obtained.

[0051] Additionally, terms including ordinal numbers, such as "first," "second," etc., used in this specification may be used to describe various components, but said components are not limited by said terms, and said terms are used solely for the purpose of distinguishing one component from another. Accordingly, the first component may be named the second component, and similarly, the second component may be named the first component.

[0052] Additionally, terms such as "front," "rear," "upper," "lower," "side," "front shear," "rear end," "top," and "bottom" used in this specification are defined based on the drawings or based on the arrangement / placement state of the components or between the components, and the shape and location of each component are not limited by these terms.

[0053] Hereinafter, preferred embodiments of a clothing processing device and a control method thereof will be described in detail with reference to the attached drawings.

[0054] FIG. 1 illustrates an example of a clothing processing device (100), wherein the clothing processing device (100) may be configured to include a cabinet (1) that forms an exterior.

[0055] The cabinet (1) may be configured to include a front panel (11) forming the front surface of the clothing processing device, a rear panel (13) forming the rear surface of the clothing processing device, side panels (12) forming both sides of the clothing processing device, and an upper panel (14) forming the upper surface of the clothing processing device.

[0056] The front panel (11) is provided with an inlet (111) for the entry and exit of clothing, and the inlet (111) may be provided to be opened and closed by a door (113) rotatably fixed to the front panel (11). The side panel (12) may be provided with a first side panel (121) and a second side panel (123) forming the right and left sides of the clothing processing device.

[0057] The above clothing processing device (100) may be provided with a base panel (15) forming a bottom surface. In this case, at least one of the front panel, the rear panel, and the side panel may be fixed to the base panel (15).

[0058] For example, the first side panel (121) and the second side panel (123) may be fixed to the base panel (15), the front panel (11) may be provided to connect the front surfaces of the side panels (121, 123), and the rear panel (13) may be provided to connect the rear surfaces of the side panels (121, 123).

[0059] The upper panel (14) may be fixed to the upper surface edge of the side panels (121, 123) and the upper surface edge of the rear panel (13). Unlike what is shown in the drawing, the upper panel (14) may be fixed to the upper surface edge of the front panel (11), the upper surface edge of the side panel (12), and the upper surface edge of the rear panel (13).

[0060] As illustrated in FIG. 2, the clothing processing device (100) may include a tub (2) provided inside the cabinet (1) to provide a space for storing water, and a drum (3) rotatably provided inside the tub to provide a space for storing clothing.

[0061] The above tub (2) may be provided to include a tub body (21) in which water is stored, and a tub support (22) that secures the tub body (21) inside the cabinet (1).

[0062] The tub body (21) may be provided in a hollow cylindrical shape, and the tub support (22) may be provided with a damper that fixes the lower space of the tub body (21) to the base panel (15) and a spring that fixes the upper space of the tub body (21) to the cabinet.

[0063] A tub inlet (211) is provided on the front surface of the tub body (21), and the tub inlet (211) can be connected to the inlet (111) of the cabinet through an inlet connection part (4). In order to minimize the transmission of vibration of the tub body (21) to the front panel (11), it is preferable that the inlet connection part (4) be made of a material such as rubber.

[0064] The tub body (21) receives water through the water supply unit (23) and can discharge the stored water to the outside of the cabinet (1) through the drainage unit (24).

[0065] The above water supply unit (23) may be provided to include a water source connecting pipe (232) connected to a water source, a tub water supply pipe (231) supplying water to the tub body (21), and a water supply valve (233) connecting the water source connecting pipe and the tub water supply pipe. The water supply valve (233) may be fixed to the rear panel (13) to control the opening and closing of the water source connecting pipe (232).

[0066] The above drainage section (24) may be provided to include a pump (243), a first drain pipe (241) that guides water inside the tub body (21) to the pump (243), and a second drain pipe (242) that guides water discharged from the pump (243) to the outside of the cabinet (1).

[0067] The drum (3) may be provided as a cylindrical drum body (31) with a hollow interior. A drum inlet (311) may be provided on one side of the drum body (31) (the side of the drum body facing the tub inlet), and a drum through hole (312) that connects the interior of the drum body with the interior of the tub body may be provided on the circumferential surface and rear surface of the drum body (31).

[0068] The drum body (31) can be rotated through a driving unit (34), and the driving unit may be provided to include a stator (342) fixed to the rear surface of the tub body (21) to form a rotating magnetic field, a rotor (343) located outside the tub body (21) to rotate by the rotating magnetic field, and a rotating shaft (341) that penetrates the rear surface of the tub body (21) to connect the drum body (31) and the rotor (343).

[0069] In order to supply detergent to the tub body (21), the garment processing device (100) may be equipped with a detergent supply unit (5).

[0070] As illustrated in FIG. 3, the detergent supply unit (5) may be configured to include a housing (51) fixed to the cabinet (1), a drawer (52) that provides a space for storing detergent and can be withdrawn from the housing (51), and a supply pump (53) that moves the detergent stored in the drawer to the tub body (21).

[0071] The detergent supply unit (5) may be provided to be located at the upper part of the tub body (21) or at the lower part of the tub body (21), and FIG. 3 illustrates the latter case as an example.

[0072] The housing (51) may be fixed to the base panel (15) or fixed to a mounting panel (151) provided on the base panel (15). The mounting panel (151) may be fixed to the base panel (15) and provided as a panel located on the front surface of the cabinet (1).

[0073] The front surface of the housing (51) is provided with a drawer inlet (511) for the entry and exit of the drawer (52), and the mounting panel (151) may be provided with a mounting panel through hole that exposes the drawer inlet (511).

[0074] The drawer (52) may be provided to include a storage section (521) that provides a space for storing detergent, a detergent supply port (523) capable of supplying detergent into the storage section (521), a detergent discharge port (525) through which detergent from the storage section (521) is discharged, and a valve (527) that controls the opening and closing of the detergent discharge port. The detergent supply port (523) may be provided as an upper surface through-hole that penetrates the upper surface of the storage section (521) and may be provided to be opened and closed by a lid.

[0075] The above valve (527) may be provided as a check valve that controls the opening and closing of the detergent discharge port (525) by the supply pump (53). That is, the above valve (527) may be provided to open the detergent discharge port (525) when the drawer (52) is inserted into the housing (51) and the inlet pipe of the supply pump (53) comes into contact with the above valve (527), and to close the detergent discharge port (525) when the drawer (52) is withdrawn from the housing (51) and the inlet pipe of the supply pump (53) does not come into contact with the above valve (527).

[0076] The above supply pump (53) can be equipped with a pump of various structures capable of moving the detergent discharged through the detergent outlet (525) to the tub body (21).

[0077] The detergent discharged from the supply pump (53) is supplied to the tub body (21) through the detergent supply pipe (533), and the detergent supply pipe (533) may be provided as a flow path connecting the circumferential surface of the supply pump (53) and the tub body (21), or as a flow path connecting the supply pump (53) and the inlet connection part (4).

[0078] The above-mentioned input port connection part (4) may be provided as a connecting body (41) that connects the input port (111) of the cabinet and the tub input port (211). In this case, the detergent supply pipe (533) may be provided as a flow path that connects the supply pump (53) and the connecting body (41). Additionally, the connecting body (41) may be provided with a water supply flow path (42) to which the tub water supply pipe (231) is connected.

[0079] Although not shown in the drawing, if the above clothing processing device (100) is provided with a circulation path for circulating water inside the tub body (21), the detergent supply pipe (553) may be provided to connect the supply pump (53) and the circulation path.

[0080] For drying the clothing stored in the drum body (31), the clothing processing device (100) may be equipped with an air supply unit (6) and a heat exchange unit (7).

[0081] As illustrated in FIG. 4, the air supply unit (6) may include a body (61) located at the top of the tub body (21) and having a chamber (611, 612) inside, a chamber supply channel (62) for guiding air inside the tub body (21) into the chamber, and a tub supply channel (63) for guiding air discharged from the chamber into the tub body (21).

[0082] The chamber provided in the body (61) may be provided to include a filtration chamber (611) in which a filtration unit (8) is mounted, and a heat exchange chamber (612) in which a heat exchanger (71, 72) provided in the heat exchange unit (7) is located. The filtration chamber (611) and the heat exchange chamber (612) may be provided to communicate with each other, and may be provided so that air passing through the filtration chamber (611) moves to the heat exchange chamber (612).

[0083] The chamber supply channel (62) is provided to connect the tub exhaust port (212, see FIG. 2) provided in the tub body (21) with the filtration chamber (611), and the tub supply channel (63) may be provided to connect the heat exchange chamber (612) with the inlet connection part (4).

[0084] The above chamber supply channel (62) may be provided as a channel in which at least a portion of the area is composed of a corrugated tube (621).

[0085] As illustrated in FIG. 3, the inlet connection part (4) may be provided as a cylindrical connecting body (41) connecting the inlets (111, 211) of the cabinet and the tub, and a supply air passage (43) may be provided on the circumferential surface of the connecting body (41). In this case, the tub supply passage (63) may be provided to connect the heat exchange chamber (612) and the supply air passage (43).

[0086] In order to minimize heat loss occurring during movement through the tub supply channel (63) and to minimize channel resistance, it is preferable that the air supply channel (43) be positioned above the horizontal line (H) passing through the center of the connecting body (41).

[0087] As illustrated in FIG. 4, the tub supply channel (63) may be configured to include a fan housing (631) connecting the heat exchange chamber (612) and the air supply channel (43), and a fan (634) provided inside the fan housing (631) to move air.

[0088] The fan housing (631) may be provided to include a housing inlet (632) that guides air discharged from the heat exchange chamber (612) to the fan (634) and a housing outlet (633) that guides air discharged from the fan (634) to the air supply path (43).

[0089] The above fan (634) may be equipped with an impeller rotatably fixed inside the fan housing and a motor fixed outside the fan housing to rotate the impeller.

[0090] The heat exchanger (7) may include a first heat exchanger (71) and a second heat exchanger (72) provided in the heat exchange chamber (612), a refrigerant pipe (75) that provides a circulation path for the refrigerant and passes through the first heat exchanger (71) and the second heat exchanger (72), a compressor (73) located outside the heat exchange chamber (612) and moving the refrigerant along the refrigerant pipe (75), and a pressure regulator (74) that regulates the pressure of the refrigerant circulating along the refrigerant pipe.

[0091] The first heat exchanger (71) is a means for cooling the air flowing into the heat exchange chamber (612) (a means for removing moisture from the air), and the second heat exchanger (72) is a means for heating the dehumidified air.

[0092] The refrigerant passing through the first heat exchanger (71) absorbs heat from the air and vaporizes, and the vaporized refrigerant passes through the compressor (73) and is supplied to the second heat exchanger (72), and the refrigerant condensed while passing through the second heat exchanger (72) will be supplied back to the first heat exchanger (71) through the pressure regulator (74).

[0093] The above filtration chamber (611) is provided with an air supply port (615), and the above heat exchange chamber (612) is provided with an exhaust port (616). The air supply port (615) is a means for introducing air supplied from the chamber supply channel (62) into the filtration chamber (611), and the exhaust port (616) is a means for discharging air discharged from the heat exchange chamber (612) into the tub supply channel (63).

[0094] In order to secure the chamber supply channel (62) and the tub supply channel (63) to the body (61), the air supply unit (6) may be provided with a first connecting part (617) and a second connecting part (619).

[0095] The first connecting part (617) may be provided on the rear surface (the surface facing the rear panel) of the body (61) and may be provided as a pipe-shaped flow path that surrounds the air intake port (615), and the second connecting part (619) may be provided on the side surface (the surface facing the first side panel) of the body (61) and may be provided as a pipe-shaped flow path that surrounds the exhaust port (616). When the fan housing (631) is fixed to the body (61), the second connecting part (619) may be provided to be connected to or inserted into the housing inlet (632) of the fan housing.

[0096] The above filtration chamber (611) and the heat exchange chamber (612) may be provided as spaces with an open upper surface. The open upper surface (upper open surface) of the filtration chamber (611) may be provided to be closed by a filtration unit (8) to be described later, and the open upper surface of the heat exchange chamber (612) may be provided to be closed by a body cover (613).

[0097] Furthermore, the body (61) may be further provided with a condensate discharge section (65) for discharging condensate inside the heat exchange chamber (612).

[0098] The above condensate discharge section (65) may be provided to include a condensate discharge port connected to the heat exchange chamber (612) by penetrating one side of the body (61), and a condensate discharge pipe connecting the condensate discharge port and the drainage section.

[0099] The above body (61) may be provided with a compressor mounting part (614) that supports the compressor (73).

[0100] The compressor mounting portion (614) is a space in which the compressor (73) is mounted, and may be provided with a support plate extending from the body (61) toward the rear panel (13) so that the compressor (73) is positioned above the tub body (21).

[0101] The above-described body (61) forms a single mounting space in which the filtration chamber (611), the heat exchange chamber (612), and the compressor mounting part (614) are connected without separate fastening means, thereby facilitating the assembly of the air supply part (6) and the heat exchange part (7).

[0102] It is preferable that the air supply unit (6) and heat exchange unit (7) described above be positioned between the upper panel (14) and the upper surface of the tub body (21).

[0103] As previously explained, since the detergent supply unit (5) and drainage unit (24), etc. are provided in the lower part of the tub body (21), in order to install the air supply unit (6) and heat exchange unit (7) in the lower part of the tub body (21), the volume of the cabinet (1) must be increased to provide a separate space for installation in the lower part of the tub body (21). However, if the air supply unit (6) and heat exchange unit (7) are mounted in the upper part of the tub body (21), the space required for mounting the air supply unit (6) and heat exchange unit (7) can be minimized (the volume of the cabinet is minimized).

[0104] Meanwhile, in order to minimize the mounting space of the air supply unit (6) and the heat exchange unit (7) and to minimize the air flow resistance (distance traveled by air) of air moving from the tub body (21) to the chamber supply channel (62), the filtration chamber (611) and the heat exchange chamber (612) may be arranged parallel to the width direction (Y-axis direction) of the tub body, and the chamber supply channel (62) may be arranged parallel to the length direction (X-axis direction) of the tub body.

[0105] As illustrated in FIG. 1, the filter unit (8) may be detachably provided in the filter chamber (611) through the upper panel (14). That is, the upper panel (14) may further be provided with a chamber communication hole (141) that exposes the filter chamber (611) to the outside of the cabinet (1), and the filter unit (8) may be inserted into the filter chamber (611) or withdrawn from the filter chamber (611) through the chamber communication hole (141).

[0106] As illustrated in FIG. 4, the filtration unit (8) may be configured to include a cover (81) that can be withdrawn to the outside of the cabinet (1) through the chamber communication hole (141), a support body (82) fixed to the cover (81) and located inside the filtration chamber (611), and a filter mesh (83) provided on the support body (82) to separate foreign substances from the air. It is preferable that the cover (81) be configured in a shape that can close the upper surface of the filtration chamber (611).

[0107] The above-described clothing processing device can perform a foreign substance removal step (washing step, rinsing step) for separating foreign substances from the object to be processed, and a drying step (drying step) for drying the object to be processed by supplying drying air to the object to be processed. The clothing processing device (100) proceeds with a dehydration step (dehydration step) after the completion of the foreign substance removal step, and the user can withdraw the object to be processed from the drum or perform the drying step after the dehydration step is completed.

[0108] The above dehydration step is a process of separating water from the target being treated by rotating the drum (3) at high speed. Since the drum must rotate at high speed to remove water from the target being treated, the above dehydration step may cause a phenomenon of the target being treated to adhere to the circumferential surface of the drum.

[0109] When the above-mentioned adhesive phenomenon occurs, the processing target closes the drum penetration hole (312), which can hinder the smooth discharge of water separated from the processing target (increase in dehydration time).

[0110] When the operation of the garment processing device ends with the processing target attached to the circumferential surface of the drum body (31), the user must separate the processing target from the drum body (31) in order to withdraw the processing target from the drum body. Therefore, the fabric attachment phenomenon may cause inconvenience when withdrawing the processing target from the drum after the foreign matter removal step is completed.

[0111] Meanwhile, if the drying step is performed after the completion of the dehydration step, the aforementioned foam adhesion phenomenon may cause a decrease in drying efficiency (an increase in drying time). This is because the drying step supplies drying air to the target object to vaporize the water contained within it, and the foam adhesion phenomenon will hinder the even distribution of drying air to the target object.

[0112] FIG. 5 illustrates an example of a control method for a garment processing device capable of accurately determining whether a fabric adhesion phenomenon has occurred and resolving the fabric adhesion phenomenon.

[0113] The above control method may be configured to include a foreign substance removal step (S10) for removing foreign substances from a target for processing, a dehydration step (S20) for removing water from a target for processing, and a fabric attachment determination step (S40) for determining whether the target for processing is attached to the drum (3).

[0114] The above foreign substance removal step (S10) may be a washing process in which water and detergent are supplied to the tub body (21) to separate foreign substances from the object to be treated, or a rinsing process in which water is supplied to the tub body (21) after the washing process is completed to separate foreign substances or detergent remaining on the object to be treated.

[0115] The above foreign substance removal step (S10) may include a water supply step (S11) for supplying water to the tub (2), a foreign substance separation step (S12) for separating foreign substances from the target to be processed by rotating the drum (3), and a drainage step (S13) for draining water inside the tub (2).

[0116] The above water supply step (S11) may be provided as a step of supplying water from the water source to the tub body (21) through the water supply unit (23), the above foreign matter separation step (S12) may be provided as a step in which the driving unit (34) rotates the drum body (31), and the above drainage step (S13) may be provided as a step of discharging water from the tub body (21) to the outside of the cabinet (1) through the drainage unit (24).

[0117] The above dehydration step (S20, final dehydration step) is a step of rotating the drum body (31) at a preset dehydration speed to discharge water contained in the object to be treated into the tub body (21). The dehydration speed may be set to a speed that induces a centrifugal force of 1G or more on the object to be treated. A speed that induces a centrifugal force of 1G or more means a speed that maintains the state in which the object to be treated is attached to the circumferential surface of the drum body (31). Therefore, in the above dehydration step (S20), the object to be treated rotates together with the drum body (31).

[0118] The above-mentioned foam attachment determination step (S40) may include a rotation step (S41) of rotating the drum body (31) at a preset detection speed, a measurement step (S42) of measuring the speed of the drum body (31) during the rotation step, and an attachment detection step (S43) of determining whether a foam attachment phenomenon occurs by comparing the number of speed inflection points of the drum body (31) with the number of rotations of the drum body (31). The detection speed should be set to a speed lower than the dehydration speed, and it is preferable that the speed be set to induce a centrifugal force of less than 1G on the processing target.

[0119] FIG. 6 (a) illustrates the case where the drum body (31) is rotated at the detection speed while the target to be processed is attached to the circumferential surface of the drum body (31). When the drum body (31) is rotated at the detection speed (R) while the attachment phenomenon occurs, the rotational speed of the drum body (31) is observed as shown in FIG. 6 (b).

[0120] When the processing target moves from the lowest point (0 degree point) to the highest point (180 degree point) of the drum body (31), the load of the driving unit (34) is greater than the load of the driving unit (34) when the processing target moves from the highest point (180 degree point) to the lowest point (0 degree point) of the drum body (31).

[0121] Meanwhile, in order to maintain the drum body (31) at the detection speed (R) during the rotation step (S41), the driving unit (34) accelerates the drum body (31) to a speed greater than the detection speed (R), and when the drum body (31) exceeds the detection speed (R), it repeats the process of decelerating the drum body (31) to a speed less than or equal to the detection speed (R). That is, the driving unit (34) controls the current supplied to the stator (342) to maintain the rotation speed of the drum body (31) at the detection speed.

[0122] Accordingly, when the rotation step (S41) is performed with the processing target attached to the circumferential surface of the drum body (31), the rotation speed of the drum body (31) measured through the measurement step (S42) may repeat the rising section (T1) and the falling section (T2).

[0123] If the processing target is attached to the circumferential surface of the drum body (31), the periods of the rising section (T1) and the falling section (T2) will be observed relatively regularly. This is because there is no load fluctuation caused by the position change of the processing target during the rotation of the drum body (31). Therefore, the number of velocity inflection points of the drum body during the rotation of the drum body (31) is constant.

[0124] The above speed inflection points can be divided into upper inflection points (P1, P3) where the speed of the drum body changes from an upward section to a downward section, and lower inflection points (P2) where the speed of the drum body changes from a downward section to an upward section, and when the above-mentioned attachment phenomenon occurs, the number of upper inflection points and the number of lower inflection points can be observed to be constant.

[0125] For example, when the drum body (31) rotates once in the rotation step (S41), one upper inflection point (P1) is observed in the rotational speed of the drum body (31), and no lower inflection point is observed. Therefore, when the drum body (31) rotates once, only one speed change point can be observed in the rotational speed of the drum body (31).

[0126] Meanwhile, if the drum body (31) rotates twice in the rotation step (S41), two upper inflection points (P1, P3) and one lower inflection point (P2) will appear in the rotation speed of the drum body (31). That is, if the drum body (31) rotates twice in the rotation step (S41), the rotation speed of the drum body will have three speed change points.

[0127] Although not shown in the drawing, if the drum body (31) rotates 3 times in the rotation step (S41), there will be 3 upper inflection points and 2 lower inflection points in the rotation speed of the drum body (31). That is, if the drum body (31) rotates 3 times in the rotation step (S41), the rotation speed of the drum body will have 5 speed change points.

[0128] FIG. 7 (a) illustrates the case where the drum body (31) is rotated at the detection speed while the processing target is not attached to the circumferential surface of the drum body (31). When the drum body (31) is rotated at the detection speed (R) while the processing target is separated from the circumferential surface of the drum body, the rotational speed of the drum body (31) is observed as shown in FIG. 7 (b).

[0129] When the drum body (31) rotates with the processing target separated from the circumferential surface of the drum body (31), the periods of the rising section (T1) and the falling section (T2) will be observed irregularly. This is because there will be load fluctuations caused by changes in the position of the processing target during the rotation of the drum body (31). Therefore, it is highly likely that the number of velocity inflection points of the drum body will be observed irregularly during the rotation of the drum body (31).

[0130] Let us assume a case where the processing target is separated from the drum body when the drum body (31) is rotated 180 degrees, as illustrated in FIG. 7 (a). In this case, two upper inflection points (P11, P12) and one lower inflection point (P21) may appear in the rotational speed of the drum body (31). That is, when the drum body (31) rotates once in the rotation step (S41), three speed change points may appear in the rotational speed of the drum body.

[0131] Meanwhile, when the drum body (31) rotates twice in the rotation step (S41), four upper inflection points (P11, P12, P31, P32) and three lower inflection points (P21, P22, P23) may appear in the rotation speed of the drum body (31). That is, when the drum body (31) rotates twice in the rotation step (S41), seven speed change points may appear in the rotation speed of the drum body.

[0132] Although not shown in the drawing, if the drum body (31) rotates 3 times in the rotation step (S41), 6 upper inflection points and 5 lower inflection points may appear in the rotation speed of the drum body (31). That is, if the drum body (31) rotates 3 times in the rotation step (S41), 11 speed change points may appear in the rotation speed of the drum body.

[0133] The attachment detection step (S43) can determine whether the attachment phenomenon has occurred by utilizing the phenomenon described above. That is, the attachment detection step (S43) can determine whether the processing target is attached to the circumferential surface of the drum body (31) by comparing the number of rotations of the drum body (31) in the rotation step (S41) with the number of speed inflection points in the rotation step (S41).

[0134] For example, the attachment detection step (S43) can determine whether a non-attachment phenomenon occurs by comparing the number of rotations of the drum body (31) in the rotation step (S41) with the number of upper inflection points in the rotation step.

[0135] That is, if the number of upper inflection points observed during the execution of the rotation step (S41) is less than or equal to the number of times the drum body (31) has rotated for the execution of the rotation step (S41), the attachment detection step (S43) can determine that the processing target is attached to the circumferential surface of the drum body (31).

[0136] If the drum body (31) rotates once as a result of the above rotation step (S41) and the number of upper inflection points is 1 or less, or if the drum body (31) rotates twice and the number of upper inflection points is 2 or less, the attachment detection step (S43) can determine that the processing target is attached to the circumferential surface of the drum body (31).

[0137] However, if the number of upper inflection points observed during the execution of the rotation step (S41) is greater than the number of times the drum body (31) has rotated for the execution of the rotation step (S41), the attachment detection step (S43) may determine that the processing target has been separated from the circumferential surface of the drum body (31).

[0138] That is, if the drum body (31) rotates once as a result of the execution of the rotation step (S41) and the number of upper inflection points is two or more, or if the drum body (31) rotates twice and the number of upper inflection points is three or more, the attachment detection step (S43) can determine that the processing target is separated from the circumferential surface of the drum body (31).

[0139] Unlike the above, the attachment detection step (S43) may be configured to determine whether the attachment phenomenon occurs by comparing the number of lower inflection points observed during the execution of the rotation step (S41) with the number of times the drum body (31) rotated for the execution of the rotation step (S41).

[0140] That is, the attachment detection step (S43) may be configured to determine a non-attached state if the number of lower inflection points is less than the number of rotations of the drum body (31), and to determine that the processing target is separated from the circumferential surface of the drum body (31) if the number of lower inflection points is greater than or equal to the number of rotations of the drum body (31).

[0141] For example, if the drum body (31) rotates once as a result of the rotation step (S41) and the number of lower inflection points is zero, or if the drum body (31) rotates twice and the number of lower inflection points is one or less, the attachment detection step (S43) can determine that the processing target is attached to the circumferential surface of the drum body (31).

[0142] However, if the drum body (31) rotates once as a result of the above rotation step (S41) and the number of lower inflection points is one or more, or if the drum body (31) rotates twice and the number of lower inflection points is two or more, the attachment detection step (S43) can determine that the processing target is separated from the circumferential surface of the drum body (31).

[0143] In order to more accurately determine whether the above-mentioned adhesive phenomenon occurs, it is preferable that the rotation step (S41) be configured to rotate the drum body (31) in only one of the clockwise and counterclockwise directions.

[0144] In addition, to more accurately determine whether the above-mentioned foam adhesion phenomenon occurs, the control method may execute a stop step (S30) that stops the rotation of the drum body (31) before the start of the above-mentioned foam adhesion determination step (S40). As shown in FIG. 5, the stop step (S30) may be set as a step of maintaining the drum body (31) in a stopped state for a preset time after the end of the above-mentioned dehydration step (S20).

[0145] Furthermore, the above-mentioned attachment determination step (S40) may be configured to compare the number of rotations of the drum body (31) and the number of speed inflection points in the entire section of the rotation step (S41) or a part section of the rotation step (S41). Additionally, the above-mentioned attachment determination step (S40) may be configured to determine whether the attachment phenomenon occurs by comparing the number of speed inflection points of the drum that occurred while the drum rotated up to a preset number of times with the preset number of times.

[0146] If it is determined that the above-mentioned adhesive phenomenon has not occurred, the control method may terminate the foreign substance removal step (S10) and proceed with a drying step (S70) in which heated drying air is supplied to the tub (2) to dry the object to be processed.

[0147] FIG. 5 illustrates the latter case as an example, wherein the drying step (S70) may be provided with a step of operating the fan (634) to circulate air inside the tub body, and a step of operating the heat exchanger (7) to sequentially perform dehumidification and heating of the air. In order to shorten the execution time of the drying step (S70), the drum body (31) may rotate during the drying step (S70). In this case, it is preferable that the rotation speed of the drum body (31) be set to a speed that induces a centrifugal force of less than 1G on the object to be processed.

[0148] Meanwhile, if the above-described blistering phenomenon occurs, the control method may proceed with a notification step (S44) that informs the user that the blistering phenomenon has occurred or informs the user of the progress of the blistering step (S50).

[0149] The above-mentioned popping step (S50) is a step of separating the processing target from the circumferential surface of the drum, and may be configured to include an acceleration step and a braking step.

[0150] The above acceleration step may be provided as a step of rotating the drum body (31) in a first direction set as either clockwise or counterclockwise at a rotational speed that induces a centrifugal force of 1G or more on the processing target. FIG. 8 (c) illustrates an example of the acceleration step, showing the case where the first direction is set to counterclockwise.

[0151] The braking step may be provided as a step of temporarily stopping the rotation of the drum body (31) when the drum body (31) rotates at an angle of 90 degrees or more and 180 degrees or less relative to the lowest point (0 degree point) of the drum body (31). The braking step may be provided as a step in which the driving unit (34) supplies a second direction torque (torque opposite to the first direction) to the drum body (31) for a preset time. FIG. 8 (d) illustrates an example of the braking step, showing the case where the second direction is set to clockwise.

[0152] When the acceleration step is executed while the drum body is in a stationary state (Fig. 8 (a)), the processing target (L) inside the drum body moves toward the apex of the drum body (31) while attached to the drum body (31). When the processing target (L) rotates to an angle of 90 degrees or more and 180 degrees or less relative to the bottom of the drum body (31), the braking step is initiated, and upon execution of the braking step, the processing target (L) will be separated from the circumferential surface of the drum body (31) and fall toward the bottom surface of the drum body (31).

[0153] Meanwhile, to prevent a large load from occurring on the drive unit (34) when executing the above-described popping step (S50), the popping step (S50) may further include a starting step.

[0154] FIG. 8 (b) illustrates an example of the above-mentioned starting step, wherein the starting step may be configured to rotate the drum body (31) at an angle of less than 90 degrees in a direction opposite to the rotation direction set in the acceleration step (second direction) before the acceleration step begins. When the starting step proceeds before the acceleration step begins, the driving unit (34) can execute the acceleration step by utilizing the potential energy of the processing target. Therefore, through the starting step, the control method can reduce the load on the driving unit (34).

[0155] The above-described control method can determine whether a sticking phenomenon occurs more accurately than a method of comparing the current value supplied to the drive unit with a set reference value by comparing the number of rotations of the drum (3) with the number of speed inflection points of the drum to determine whether a sticking phenomenon occurs.

[0156] In addition, the above control method can prevent the inconvenience that occurs when a user withdraws a processing target from the drum body (31) due to the above-mentioned adhesive phenomenon, and the problem of reduced drying efficiency during the above-mentioned drying step.

[0157] As illustrated in FIG. 5, when the popping step (S50) is completed, the control method determines (S51) whether the number of times the popping step is executed is less than a reference number. If the number of times the popping step is executed is less than a reference number, the control method re-executes the above-described popping attachment determination step (S40).

[0158] However, if the number of times the above-mentioned foaming step is executed is greater than or equal to the reference number, the control method may execute a notification step (S60) that notifies the user that the foaming phenomenon has not been resolved, and then terminate the above-mentioned foreign substance removal step (S10) or execute the above-mentioned drying step (S70).

[0159] FIG. 9 illustrates another embodiment of the control method, characterized by controlling the final dehydration step (S500, second dehydration step) differently depending on whether the fabric adhesion phenomenon occurs.

[0160] The control method of FIG. 9 may be configured to include a foreign substance removal step (S100) for removing foreign substances from a target for processing, a first dehydration step (S200, intermediate dehydration step) for removing water from a target for processing, a fabric attachment determination step (S400) for determining whether the target for processing is attached to the drum (3), and a second dehydration step (S500, final dehydration step) for removing water from a target for processing.

[0161] The above foreign substance removal step (S100) may be a washing process in which water and detergent are supplied to the tub body (21) to separate foreign substances from the object to be treated, or a rinsing process in which water is supplied to the tub body (21) after the washing process is completed to separate foreign substances or detergent remaining on the object to be treated.

[0162] The above foreign substance removal step (S100) may include a water supply step (S110) for supplying water to the tub (2), a foreign substance separation step (S120) for separating foreign substances from the target to be processed by rotating the drum (3), and a drainage step (S130) for draining water inside the tub (2).

[0163] The above water supply step (S110) may be provided as a step of supplying water from the water source to the tub body (21) through the water supply unit (23), the above foreign matter separation step (S120) may be provided as a step in which the driving unit (34) rotates the drum body (31), and the above drainage step (S130) may be provided as a step of discharging water from the tub body (21) to the outside of the cabinet (1) through the drainage unit (24).

[0164] The first dehydration step (S200) above is a step of rotating the drum body (31) at a first dehydration speed to discharge water contained in the object to be treated into the tub body (21). The first dehydration speed can be set to a speed that induces a centrifugal force of 1G or more in the object to be treated.

[0165] The above-mentioned attachment determination step (S400) may include a rotation step (S410) of rotating the drum body (31) at a preset detection speed, a measurement step (S420) of measuring the speed of the drum body (31) during the rotation step, and an attachment detection step (S430) of determining whether an attachment phenomenon occurs by comparing the number of speed inflection points of the drum body (31) with the number of rotations of the drum body (31).

[0166] The above detection speed should be set to a speed lower than the first dehydration speed, and it is preferable to set it to a speed that induces a centrifugal force of less than 1G on the object to be processed. The above measurement step (S420) may be provided as a step of directly measuring the rotational speed of the drum body (31), or as a step of measuring the rotational speed of the rotor (343).

[0167] The attachment detection step (S430) can determine whether the processing target is attached to the circumferential surface of the drum body (31) by comparing the number of rotations of the drum body (31) in the rotation step (S410) with the number of speed inflection points in the rotation step (S410).

[0168] That is, the attachment detection step (S430) may determine whether the attachment phenomenon occurs by comparing the number of upper inflection points observed during the execution of the rotation step (S410) with the number of times the drum body (31) rotated for the execution of the rotation step (S410), or it may be configured to determine whether the attachment phenomenon occurs by comparing the number of lower inflection points observed during the execution of the rotation step (S410) with the number of times the drum body (31) rotated for the execution of the rotation step (S410).

[0169] In order to more accurately determine whether the above-mentioned adhesive phenomenon occurs, it is preferable that the rotation step (S410) be configured to rotate the drum body (31) in only one of the clockwise and counterclockwise directions.

[0170] In addition, to more accurately determine whether the above-mentioned foam adhesion phenomenon occurs, the control method may execute a stop step (S300) that stops the rotation of the drum body (31) before the start of the foam adhesion determination step (S400). The stop step (S030) may be set as a step of maintaining the drum body (31) in a stopped state for a preset time after the end of the first dehydration step (S200).

[0171] The above attachment determination step (S400) may be configured to compare the number of rotations of the drum body (31) and the number of speed inflection points in the entire section of the rotation step (S410) or a part section of the rotation step (S410).

[0172] When the above-mentioned foam attachment phenomenon occurs, the control method may proceed with a notification step (S440) that notifies the user that the foam attachment phenomenon has occurred or notifies the user that the second dehydration step (S500), which includes foam dehydration (S510, S520), is executed.

[0173] If it is determined that the above-mentioned foam attachment phenomenon has occurred, the second dehydration step (S500) may sequentially perform the foam dehydration (S510, S520) and maintenance dehydration (S530).

[0174] The above-mentioned dehydration (S510, S520) is configured as a step of continuously executing the process of accelerating and decelerating the drum body (31) to a speed lower than a preset second dehydration speed, and the above-mentioned maintenance dehydration (S530) may be configured as a step of maintaining the rotational speed of the drum body (31) at the second dehydration speed for a preset maintenance time. The second dehydration speed may be set to the same speed as the first dehydration speed, or may be set to a higher speed than the first dehydration speed.

[0175] As illustrated in FIG. 10, the blasting dewatering may be configured to include a first blasting dewatering (S510) and a second blasting dewatering (S520).

[0176] The first dehydration step (S510) may be provided with a step (S511) of accelerating the drum body (31) to a first speed (V1) lower than the second dehydration speed (V3), and a step (S512) of decelerating the drum body (31) to stop the rotation of the drum body (31) when the rotational speed of the drum body (31) reaches the first speed.

[0177] If there is no section in which the rotational speed of the drum body (31) is maintained between the step of accelerating to the first speed (S511) and the step of decelerating (S512), and the first speed (V1) is set lower than the second dehydration speed (V3), the phenomenon of the object being processed sticking to the drum can be reduced by the object being stuck in the drum through hole (312).

[0178] The fact that there is no section in which the rotational speed of the drum body (31) is maintained between the step of accelerating to the first speed (S511) and the step of decelerating (S512) means that the driving unit (34) does not control the maintenance of the rotational speed of the drum body. Therefore, even if a section in which the rotational speed of the drum body (31) is maintained is observed between the step of accelerating to the first speed (S511) and the step of decelerating (S512), if the driving unit (34) does not control the maintenance of the rotational speed of the drum body, it can be considered that the first dehydration (S510) is executed.

[0179] Meanwhile, the second dehydration (S520) may be provided with a step (S521) of accelerating the drum body (31) to a second speed (V2) that is lower than the second dehydration speed (V3) and higher than the first speed (V1), and a step (S522) of decelerating the drum body (31) to stop the rotation of the drum body (31) when the rotational speed of the drum body (31) reaches the second speed.

[0180] If there is no section in which the rotational speed of the drum body (31) is maintained between the step of accelerating to the second speed (S521) and the step of decelerating (S522), and the second speed (V2) is set lower than the second dehydration speed (V3), the phenomenon of the object being processed sticking to the drum can be reduced by the object being processed getting stuck in the drum through hole (312). The first speed and the second speed can be set to speeds that induce a centrifugal force of 1G or more on the object being processed.

[0181] Accordingly, the control method described above can not only reduce the possibility of the fabric sticking phenomenon occurring through the first fabric dewatering (S510) and the second fabric dewatering (S520), but also shorten the execution time of the maintenance dewatering (S530).

[0182] The above maintenance dehydration (S530) may be configured to include a step of accelerating the drum body (31) to the second dehydration speed (S531), a step of maintaining the speed of the drum body (31) at the second dehydration speed for the maintenance time (S532), and a step of decelerating to stop the rotation of the drum body (31) (S533).

[0183] As illustrated in FIG. 9, when the fabric adhesion phenomenon does not occur, the second dehydration step (S500) may be configured to perform only the maintenance dehydration (S530) described above. Accordingly, the control method of FIG. 9 can shorten the execution time of the second dehydration step (S500) by performing only the maintenance dehydration (S530) when the fabric adhesion phenomenon does not occur.

[0184] When the second dehydration step (S500) is completed, the control method can execute the popping step (S600).

[0185] The above-mentioned popping step (S600) may be provided in the same way as the popping step (S50) provided in the embodiment of FIG. 5. That is, the above-mentioned popping step (S600) may be provided only with the acceleration step shown in FIG. 8 (c) and the braking step shown in FIG. 8 (d), or it may be provided to include the starting step shown in FIG. 8 (b), the acceleration step shown in FIG. 8 (c), and the braking step shown in FIG. 8 (d).

[0186] Although not illustrated in FIG. 9, after the completion of the second dehydration step (S500), the control method may be configured to execute the aforementioned foam attachment determination step (S400) once more, and to execute the foam spreading step (S600) only when it is determined that the foam attachment phenomenon has occurred.

[0187] After the completion of the above-mentioned fluffing step (S600), the control method may terminate the operation of the clothing processing device or execute a drying step (S700) for drying the processing target.

[0188] Accordingly, the control method of FIG. 9 can not only prevent the inconvenience caused when a user withdraws a processing object from the drum body (31) due to the fabric sticking phenomenon and the problem of reduced drying efficiency during the drying step, but also achieve the effect of shortening the second dehydration time (shortening the operating time of the garment processing device) when the fabric sticking phenomenon does not occur. Since the garment processing device described above is an example of the present invention, the scope of the rights of the present invention cannot be limited to the structure or control method described above.

Claims

1. A control method for a processing device comprising a tub providing a space for storing water, and a drum rotatably provided inside the tub for receiving a processing target, wherein A first dehydration step of removing water from the target to be processed by rotating the drum at a preset first dehydration speed; A rotation step of rotating the drum at a detection speed lower than the first dehydration speed; An attachment detection step for determining whether the processing target is attached to the circumferential surface of the drum by comparing the number of rotations of the drum in the rotation step with the number of velocity inflection points of the drum in the rotation step; and A control method for a garment processing device characterized by including: a second dehydration step in which, when the above-mentioned processing target is attached to the circumferential surface of the drum, a process of accelerating the drum to a speed lower than a preset second dehydration speed and a process of decelerating the drum are executed sequentially, and a second dehydration step in which the drum is rotated at the second dehydration speed for a preset holding time.

2. In Paragraph 1, A control method for a clothing processing device characterized in that, when the processing target is separated from the circumferential surface of the drum, the second dehydration step performs only the maintenance dehydration.

3. In Paragraph 1, The above-mentioned dehydration of the poplar is, A first dehydrator that accelerates the drum to a first speed lower than the second dehydration speed, and decelerates the drum to stop its rotation when the first speed is reached; and A control method for a garment processing device characterized by including a second dehydration unit that accelerates the drum to a second speed lower than the second dehydration speed and higher than the first speed, and decelerates the drum to stop its rotation when the second speed is reached.

4. In Paragraph 1, A control method for a clothing processing device characterized by performing a fluffing step to separate the processing target from the circumferential surface of the drum after the completion of the second dehydration step.

5. In Paragraph 4, The above popping step is, An acceleration step of rotating the drum in a first direction set as either clockwise or counterclockwise at a rotational speed that induces a centrifugal force of 1G or more on the processing target; and A method for controlling a clothing processing device characterized by including a braking step of temporarily stopping the rotation of the drum when the drum rotates at an angle of 90 degrees or more and 180 degrees or less in the first direction relative to the bottom of the drum.

6. In Paragraph 5, A control method for a clothing processing device, characterized in that the above-mentioned fluffing step further includes a starting step of rotating the drum in the second direction at an angle of less than 90 degrees before the start of the above-mentioned acceleration step.

7. In Paragraph 1, The above attachment detection step is, A control method for a clothing processing device characterized by comparing the number of rotations of the drum in the rotation step with the number of upper inflection points where the speed of the drum changes from an upward section to a downward section in the rotation step, and determining whether the processing target is attached to the circumferential surface of the drum.

8. In Paragraph 7, A control method for a clothing processing device, characterized in that if the number of upper inflection points in the rotation step is greater than the number of rotations of the drum, the attachment detection step determines that the processing target is separated from the circumferential surface of the drum.

9. In Paragraph 7, A control method for a clothing processing device, characterized in that if the number of upper inflection points in the above rotation step is less than or equal to the number of rotations of the drum, the attachment detection step determines that the processing target is attached to the circumferential surface of the drum.

10. In Paragraph 1, The above attachment detection step is, A control method for a clothing processing device characterized by comparing the number of rotations of the drum in the rotation step with the number of lower inflection points where the speed of the drum changes from a descending section to an ascending section in the rotation step, and determining whether the processing target is attached to the circumferential surface of the drum.

11. In Paragraph 10, A control method for a clothing processing device characterized in that if the number of lower inflection points is greater than or equal to the number of rotations of the drum, the attachment detection step determines that the processing target is separated from the circumferential surface of the drum.

12. In Paragraph 10, A control method for a clothing processing device characterized in that if the number of lower inflection points is less than the number of rotations of the drum, the attachment detection step determines that the processing target is attached to the circumferential surface of the drum.

13. In Paragraph 1, A control method for a clothing processing device, characterized in that the attachment detection step compares the number of rotations and the number of speed inflection points in the entire section of the rotation step or in a part section of the rotation step.

14. In Paragraph 1, A control method for a clothing processing device characterized by the above detection speed being set to a speed that induces a centrifugal force of less than 1G on the processing target.

15. In Paragraph 1, A control method for a clothing processing device, characterized in that the above rotation step rotates the drum only in one of the clockwise and counterclockwise directions.

16. A control method for a processing device comprising a tub providing a space for storing water, and a drum rotatably provided inside the tub for receiving a processing target, wherein A first dehydration step of removing water from the target to be processed by rotating the drum at a preset first dehydration speed; A rotation step of rotating the drum at a detection speed lower than the first dehydration speed; Attachment detection step for determining whether the processing target is attached to the circumferential surface of the drum by comparing the number of velocity inflection points of the drum generated while the drum rotates up to a preset number of times in the rotation step with the preset number of times; A control method for a garment processing device characterized by including: a second dehydration step in which, when the above-mentioned processing target is attached to the circumferential surface of the drum, a process of accelerating the drum to a speed lower than a preset second dehydration speed and a process of decelerating the drum are executed sequentially, and a second dehydration step in which the drum is rotated at the second dehydration speed for a preset holding time.

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