KR20230150604A - Laundry Treating Apparatus and Control Method for the same - Google Patents

Abstract

The present application includes a cabinet provided with an inlet and a door that opens and closes the inlet; a tub provided inside the cabinet to provide a space for storing water; a drum rotatably provided inside the tub; a circulation passage including a first duct through which air inside the tub is discharged, a second duct through which air is supplied to the tub, and a connection duct connecting the first duct and the second duct; a heat exchanger including a fan that moves air along the circulation passage, a first heat exchanger that dehumidifies air introduced into the connection duct, and a second heat exchanger that heats air that has passed through the first heat exchanger; a first filtering unit including a frame positioned between the first duct and the first heat exchanger, and a first filter fixed to the frame to filter air; a washing unit that sprays water into the first filter to remove foreign substances remaining in the first filter; and a second filter unit provided with a drain passage that discharges water inside the connection duct to the outside of the connection duct, and a second filter that filters water discharged through the drain passage. .

Description

Laundry Treatment Apparatus and Control Method for the same}

This application relates to a clothing processing device and a control method of the clothing processing device.

Clothing treatment equipment is a general term for equipment for washing or drying objects (laundry or drying objects such as clothing).

Among conventional clothing treatment devices, there is a device that can perform both washing and drying. This type of device includes a tub in which water is stored, and a laundry treatment device inside the tub that can perform both washing and drying. It is a general term for devices for washing or drying objects such as laundry or drying objects.

Among conventional clothing treatment devices, there is a device that can perform both washing and drying. This type of device includes a tub in which water is stored, and a rotatable device inside the tub to store the objects to be treated. It is a structure that includes a drum, a fan that withdraws air from the tub and then supplies the air back to the tub, a circulation passage, and a heat exchanger provided in the circulation passage that sequentially dehumidifies and heats the air.

In order to prevent foreign substances contained in the air moving along the circulation passage from remaining in the heat exchanger, a conventional clothing treatment device was equipped with a filter for filtering air and a washing unit for spraying water on the filter.

A clothing processing device capable of cleaning the filter is useful in that it can minimize foreign substances remaining in the filter. However, after the cleaning of the filter is completed, a water film is formed on the filter, and the air moving along the circulation path by the water film There was a problem with the flow rate decreasing (increasing the load on the heat exchanger).

Among conventional clothing treatment devices, there is an attempt to remove the water film on the filter by increasing the rotation speed of the fan. The method of increasing the rotation speed of the fan reduces the time for the washing water sprayed into the filter to flow along the surface of the filter, thereby increasing the cleaning power. There is a problem that weakens.

Meanwhile, the foreign substances removed from the filter were discharged together with the washing water into a sewer located outside the clothing treatment device, or were discharged outside the clothing treatment device through a drain. The foreign matter discharge structure as described above has the disadvantage of causing blockage of drains or sewers.

This application aims to solve the problem of providing a clothing treatment device and a control method for the clothing treatment device that can minimize the possibility that foreign substances discharged from the filter may cause blockage of the drain or drain.

In addition, the present application aims to solve the problem of providing a clothing treatment device and a control method of the clothing treatment device that can easily remove the water film formed on the surface of the filter.

The present application includes a cabinet provided with an inlet and a door that opens and closes the inlet; a tub provided inside the cabinet to provide a space for storing water; a drum rotatably provided inside the tub; a circulation passage including a first duct through which air inside the tub is discharged, a second duct through which air is supplied to the tub, and a connection duct connecting the first duct and the second duct; a heat exchanger including a fan that moves air along the circulation passage, a first heat exchanger that dehumidifies air introduced into the connection duct, and a second heat exchanger that heats air that has passed through the first heat exchanger; a first filtering unit including a frame positioned between the first duct and the first heat exchanger, and a first filter fixed to the frame to filter air; a washing unit that sprays water into the first filter to remove foreign substances remaining in the first filter; and a second filter unit provided with a drain passage that discharges water inside the connection duct to the outside of the connection duct, and a second filter that filters water discharged through the drain passage. .

The laundry treatment device may further include a panel through-hole provided to penetrate the cabinet, and the second filter may be provided to be withdrawable to the outside of the cabinet through the panel through-hole.

The laundry treatment device further includes a door mounting portion provided in the cabinet to provide a space for the door to be mounted, and provided so as not to be exposed to the outside when the door closes the inlet, wherein the inlet and the panel through hole are provided. may be provided in the door mounting part.

The door mounting unit may be provided with a groove in which one surface of the cabinet is concavely bent toward the inside of the cabinet.

The cleaning unit includes a euro body fixed to the upper part of the frame; A cleaning passage provided inside the flow path body; a washing water supply pipe supplying water to the washing passage; and a spray hole provided to penetrate the flow path body to spray water into the first filter.

The laundry treatment device includes a pump located at a lower point than the connecting duct, a first tub drain pipe that guides water stored in the tub to the pump, and a second tub that guides water discharged from the pump to the outside of the cabinet. It may further include a drain unit provided with a drain pipe, and the drain passage may be connected to the drain unit.

The second filtering unit further includes a chamber located outside the connection duct and providing a space to detachably accommodate the second filter, and the drain passage is a first filter provided along the bottom of the connection duct. It may include a drainage passage, and a second drainage passage connecting the first drainage passage and the chamber.

The second filtration unit may further include a drain pipe connecting the chamber to the pump.

The second filtering unit includes a drawer body located inside the chamber and withdrawn from the chamber through the panel through hole; and an inlet for introducing water flowing into the chamber into the drawer body, wherein the second filter is a mesh fixed to at least one of a bottom surface, both sides, and a back surface of the drawer body. It can be provided as (mesh).

The first drainage passage may be inclined downward toward the inlet of the second drainage passage.

The laundry treatment device includes a first mounting portion provided inside the connection duct to provide a space for mounting the first heat exchanger, and located between the first filter and the second duct; a second mounting part provided inside the connection duct to provide a space for the second heat exchanger to be mounted, and located between the first mounting part and the second duct; and a connection passage that guides condensed water inside the first mounting portion to the first drainage passage.

This application provides a clothing treatment device and a control method for the clothing treatment device that can minimize the possibility that foreign substances discharged from the filter may cause blockage of the drain or drain.

In addition, the present application provides a clothing treatment device and a control method of the clothing treatment device that facilitate the removal of the water film formed on the surface of the filter.

Figures 1 and 2 show an example of a clothing treatment device.
Figure 3 shows an example of a supply unit consisting of a circulation passage and a heat exchange unit.
Figures 4 and 5 show examples of the first filtration unit, the washing unit, and the second filtration unit.
Figure 6 shows an example of the first filtration unit and the water film removal unit.
Figures 7 and 8 show another embodiment of the water film removal unit.
Figure 9 shows an example of a control method for a clothing treatment device.

Hereinafter, preferred embodiments of the clothing treatment device and its control method will be described in detail with reference to the attached drawings.

As shown in FIGS. 1 and 2, the clothing treatment device 100 includes a cabinet 1 and receiving portions 2 and 3 provided inside the cabinet to provide a clothing processing space. When the laundry treatment device is provided as a device for washing, the accommodating portion is provided with a tub (2) and a drum (3), and when the laundry processing device is provided as a device only for drying, the accommodating portion is provided with only a drum (3). It can be provided. Hereinafter, the description will be based on the case where the receiving part is provided with a tub and a drum.

The cabinet 1 includes a cabinet body 11 comprised of a plurality of panels surrounding the receiving portions 2 and 3, and a front panel 12 coupled to the cabinet body 11 to form the front surface of the laundry treatment device. ), may be provided to include a base panel 13 and an upper panel 14 that are coupled to the cabinet body 11 to form the bottom and top surfaces of the laundry treatment device.

The front panel 12 is provided with an inlet 121 and a door 123 that can open and close the inlet 121. The inlet 121 is provided to penetrate the front panel 12 and communicate with the tub 2, and the door 123 can be rotatably fixed to the front panel 12 through a hinge.

The front panel 12 may be provided with a door mounting portion 12a that provides a space for the door 123 to be mounted. The door mounting portion 12a may be provided as a groove in which the front panel 12 is bent toward the tub, and may be provided in a shape that can accommodate the edge of the door 123. In this case, the inlet 11 is provided in the door mounting part 12a.

The front panel 12 may be provided with a control panel 124. The control panel 124 may be provided with an input unit 125 that receives control commands from the user and a display unit 126 that provides the user with information related to the operation of the clothing treatment device.

As shown in FIG. 2, the tub 2 may be provided to include a tub body 21 that provides a space for storing water. The tub body 21 may be provided as a cylinder with an empty interior, and may be fixed to the inside of the cabinet 1 through a tub support 22 such as a spring and damper.

The tub body 21 is provided with a tub inlet 211, and the tub inlet 211 may be connected to the inlet 121 through a gasket 23 in the form of a corrugated pipe.

The tub body 21 is supplied with water through the water supply unit 24, and the water stored in the tub body 21 may be discharged to the outside of the cabinet 1 through the drain unit 25.

The water supply unit 24 may be provided to include water supply pipes 241 and 242 connecting a water supply source and the tub body 21, and a water supply valve 243 that controls opening and closing of the water supply pipe. The water supply pipe is provided with a first water supply pipe 241 connected to a water supply source and a second water supply pipe 242 connected to the water supply hole 232 of the gasket 23, and the water supply valve 243 is connected to the first water supply pipe 241. It may be provided to control the opening and closing of.

The laundry treatment device 100 may be equipped with a detergent supply unit that supplies detergent to the tub body 21. The detergent supply unit includes a storage housing 245 provided inside the cabinet 1, a detergent storage unit 244 accommodated in the storage housing 245 so as to be withdrawn from the cabinet 1, and the detergent storage unit. It may be provided to include a nozzle 246 that supplies water to 244.

In this case, the first water supply pipe 241 is provided to connect the nozzle 246 and the water supply source, and the second water supply pipe 242 is provided to connect the storage housing 245 and the water supply hole 232. It can be provided.

As shown in FIG. 1, the drain unit 25 includes a pump 253 located at the bottom of the tub body 21, and a tub device that guides the water of the tub body 21 to the pump 253. It may be provided to include a first drain pipe 251 and a tub second drain pipe 252 that guides water discharged from the pump 253 to the outside of the cabinet 1.

As shown in FIG. 2, the pump 253 includes a housing 254 fixed to the base panel 13 and located below the tub body, an impeller 255 located inside the housing, and the impeller It may be provided to include a pump motor 256 that rotates.

The drum 3 is rotatably provided inside the tub body 21 and includes a drum body 31 that stores processing objects (clothing, etc.). The drum body 31 is provided as a cylinder with an empty interior, and a drum inlet 311 communicating with the tub inlet 211 is provided on the front surface.

A plurality of communication holes 312 are provided on the circumferential surface and the rear surface of the drum body 31 to communicate the inside of the drum body with the inside of the tub body, and on the circumferential surface of the drum body 31 for stirring of clothes. A lifter 3113 may be provided.

The drum body 31 rotates through the driving unit 32. The driving unit 32 includes a stator 321 that is fixed to the rear of the tub body 21 to form a rotating magnetic field, a rotor 322 located outside the tub body 21 to rotate by the rotating magnetic field, and It may be provided to include a rotation shaft 323 that penetrates the rear surface of the tub body 21 and connects the rotor 322 and the rear surface of the drum body 31.

The laundry treatment device 100 is provided to include supply units 4 and 5 that supply air to the tub body 21. The supply unit may be provided to include a circulation passage 4 for circulating the air inside the tub body 21, and a heat exchange unit 5 that sequentially dehumidifies and heats the air moving along the circulation passage. there is.

As shown in FIG. 3, the circulation passage 4 includes a first duct 41 through which air inside the tub body 21 is discharged, and a second duct 42 through which air is supplied to the tub body 21. ), and a connection duct 43 connecting the first duct and the second duct.

As shown in FIG. 2, the first duct 41 is connected to the exhaust hole 212 provided on the upper circumferential surface of the tub body 21, and the second duct 42 is connected to the gasket 23. ) may be provided to be connected to the air supply hole 213 provided in the.

As shown in FIG. 4, the connection duct 43 not only connects the first duct 41 and the second duct 42, but also provides a space for mounting the heat exchanger 5. The connection body 431 ) may be provided to include.

The connection body 431 includes an inlet 432 to which the first duct 41 is connected, an outlet 433 to which the second duct 433 is connected, and an inlet 433 between the inlet 432 and the outlet 433. Mounting parts 434 and 437 may be provided to provide a mounting space for the heat exchange part 5.

The heat exchange unit 5 is located inside the refrigerant pipe 54 that provides a circulation path for the refrigerant, a compressor 53 that moves the refrigerant along the refrigerant pipe, and the connection body 431, and the refrigerant pipe 54 ), the first heat exchanger 51 fixed to the connection body 431, the second heat exchanger 52 located inside the connection body 431 and fixed to the refrigerant pipe 54, and air flowing into the connection body 431. It may be provided to include a fan 55.

The first heat exchanger 51 absorbs heat from the air flowing into the connection body 431, and the second heat exchanger 52 is provided to supply heat to the air passing through the first heat exchanger. The fan 55 may be fixed to the outlet 433 of the connection body 431. In this case, the second duct 42 directs the air discharged from the fan 55 to the air supply hole 232. It can be provided to guide you.

As shown in FIG. 5, when the heat exchanger 5 is provided with the above-described structure, the mounting part includes a first mounting part 434 that provides a space for mounting the first heat exchanger 51, and It may be provided to include a second mounting portion 437 that provides a space on which the second heat exchanger 52 is mounted.

The first mounting portion 434 may be provided with a support rib 435 that supports the bottom surface of the first heat exchanger 51. The support ribs 435 may be provided in plural numbers. Condensate water generated by condensation of air is generated on the surface of the first heat exchanger 51. When the support rib 435 is provided, the condensate formed in the first heat exchanger 51 is transferred to the first mounting part 434. It can be collected on the bottom (condensate can be separated from the first heat exchanger).

The connection body 431 includes a first filtering unit 6 that filters the air supplied to the first heat exchanger 51, and water (washing water) is sprayed into the first filtering unit 6 to form a first filtering unit 6. A cleaning unit (7) may be provided to remove foreign substances in (6).

As shown in FIG. 4, the first filtering unit 6 includes a frame 61 located between the inlet 432 and the first heat exchanger 51, and a frame through hole provided to penetrate the frame. (62), and a filter (first filter, 63) fixed to the frame and located in the frame through hole.

The frame 61 is provided along the width direction (Y-axis direction) of the connection duct 43 to divide the inner space of the connection duct 43 into a space connected to the inlet 432 and the first heat exchanger 51. It is desirable to be provided to separate the space (first mounting portion) where is located.

The cleaning unit 7 is fixed to the frame 61 or the connecting duct 43 and includes a flow path body 71 located on an upper portion of the frame 61, and a cleaning device provided inside the flow path body 71. It is provided to penetrate the flow path 711, the washing water supply pipe 73 that supplies water to the washing flow path 711, and the flow path body 71, and sprays water in the direction where the first filter 63 is located. It may be provided to include a spray hole 712.

The cleaning passage 711 is provided along the longitudinal direction (Y-axis direction) of the frame 61, and the spray hole 712 is formed of a plurality of through holes spaced apart along the longitudinal direction of the frame 61. It can be provided. The washing water supply pipe 73 is provided to connect the washing passage 711 and the water supply source, and may be provided to control opening and closing through the washing valve 74.

The water sprayed from the washing unit 7 to the first filter 63 passes through the second filtering unit 8 and moves to the drain unit 25.

As shown in FIG. 5, the second filtration unit 8 includes a drainage passage 81 that guides water inside the connection duct 43 to the outside of the connection duct 43, and a drainage passage 81. A drain pipe 84 that guides the water inside to the pump 253 located at a lower point than the connection duct 43, and a second filter 836 that filters the water inside the second drain passage 81. It may be provided to include.

The drain passage 81 is a first drain passage 811 provided on the bottom of the connection duct 431, and is located outside the connection duct 431 to form the first drainage passage 811 and the drain pipe. It may be provided to include a second drain passage 812 connecting (84). The first drainage passage 811 may be provided as a groove provided along the width direction (Y-axis direction) of the connection duct 431. In order to minimize residual water, the first drainage passage 811 is formed by the first drainage passage 811. It is preferable that it is provided slanted downward toward the entrance of the second drain passage 812.

The drain pipe 84 may be provided to guide water in the second drain passage 812 to the housing 254 of the pump.

The connection duct 43 is provided to connect the first mounting part 434 and the first drain flow path 811 so that the condensed water stored in the first mounting part 434 can be discharged through the drain flow path 81. A connection passage 436 may be further provided.

In the laundry treatment device 100 having the above-described structure, foreign substances move to the pump 253 along with water when the washing unit 7 operates, so if the second filter 836 is not present, the housing 254 Foreign matter may accumulate (foreign matter may restrict the rotation of the impeller).

The second filter 836 may be provided in a drawer 83 that is detachably fixed to the chamber 813. The chamber 813 may be located outside the connection duct 43 and may be provided to connect the second drain passage 812 and the drain pipe 84.

As shown in FIG. 4, one side of the chamber 813 is provided with a mounting hole 815 into which the drawer 83 is inserted, and the drain pipe 84 is fixed to the other side of the chamber 813. A chamber drain 814 is provided.

The drawer 83 has a drawer body 831 to which the second filter 836 is fixed and can be withdrawn from the chamber 813, and is fixed to the front surface of the drawer body 831 to the mounting hole ( It may be provided to include a drawer panel 835 that closes 815).

As shown in FIG. 1, the front panel 12 may be provided with a panel through hole 127 for entry and exit of the drawer 83, and the panel through hole 127 is connected to the door mounting portion 12a. ) is shown as an example. When the drawer 83 is inserted into the chamber 813 and the mounting hole 815 is closed, the drawer panel 835 may be positioned in the panel through-hole 127.

As shown in FIG. 4, the drawer body 831 has a bottom surface 834 in contact with the bottom surface of the chamber 813, and a height direction (Z-axis direction) of the chamber from the edge of the bottom surface. It may be provided in a shape including a side surface 833 and a rear surface 832 extending along the surface. The upper surface of the drawer body 831 may be provided with an inlet that guides water flowing into the chamber 813 into the drawer body 831.

Drawer body penetration holes are formed in the bottom surface 834, the side surface 833, and the rear surface 832, and the second filter 836 is fixed to the drawer body 831 and penetrates the drawer body. It may be provided with a mesh that closes the holes. Unlike shown in the drawing, the second filter 836 may be provided only on one of the bottom surface 836, the side surface 833, and the rear surface 832.

As shown in FIG. 2, the laundry treatment device 100 having the above-described structure allows the washing unit 7 to operate when the heat exchange unit 5 operates, and discharges discharge when the heat exchange unit 5 operates. The condensed water and the water sprayed into the first filter 63 when the washing unit 7 operates move to the housing 254 of the pump through the drain passage 81 and the drain pipe 84. When the impeller 255 of the pump rotates, the water stored in the housing 254 will be discharged to the outside of the cabinet 1 through the tub second drain pipe 252.

Since the water flowing into the drain passage 81 moves to the drain pipe 84 through the second filter 836, the laundry treatment device 100 removes the foreign matter removed from the first filter 63 and the Foreign substances contained in condensate can be filtered. Accordingly, the clothing treatment device 100 can minimize the risk of the pump 253 or the tub second drain pipe 252 being blocked by foreign substances discharged from the heat exchange unit.

Foreign substances filtered by the second filter 836 can be removed from the drawer body 831 by the user pulling out the drawer 83. Since the panel through-hole 127 through which the drawer 83 is pulled out is located in the door mounting portion 12a (because it is not exposed to the outside when the door closes the inlet), the laundry treatment device 100 is It is possible to minimize the risk of aesthetic deterioration due to the drawer 83 and damage to the drawer 83.

Meanwhile, in the clothing treatment device 100 that cleans the first filter 63 through the washing unit 7, there is a high possibility that a water film is formed on the surface of the first filter 63. Since the water film formed on the first filter 63 reduces the flow rate of air moving along the circulation passage 4, it may cause overheating of the compressor 53, etc.

In order to prevent overheating of the compressor 53, etc., the rotation speed of the fan 55 may be increased. However, if the rotation speed of the fan 55 is high, the water sprayed from the washing unit 7 may flow into the first filter ( 63), a problem may occur in that it passes through the first filter 63 and moves to the first heat exchanger 51 (foreign substances cannot be removed from the first filter).

Additionally, while a water film is formed, the operation of the compressor 53 may be temporarily stopped to prevent overheating of the compressor 53, but this will cause the disadvantage of increasing drying time.

In order to solve the above-described problem, the laundry treatment device 100 may be further equipped with a water film removal unit 9. Figures 6, 7, and 8 show an example of the water film removal unit 9.

The water film removal unit 9 is fixed to the frame 61 or the connection duct 43 and formed on the surface of the first filter 63 by vibrating the frame 61 or the first filter 63. It is a means of removing the water film.

The water film removal unit 9 may be provided to vibrate by an actuator. The water film removal unit 9 shown in FIG. 6 is a compressor capable of controlling the flow rate of the refrigerant through frequency control (operating frequency control) of the input AC power. This shows the case of using (53) as an actuator. In this case, the operating frequency of the compressor 53 is set separately into a reference frequency set for drying clothes (dehumidifying and heating the air) and a water film removal frequency set at a frequency different from the reference frequency, and the water film removal unit ( The natural frequency of 9) can be set to be the same as the water film removal frequency.

As shown in Figure 6 (a), the water film removal unit 9 may be provided with a horizontal bar 91 and a vertical bar 92.

The horizontal bar 91 is fixed to the frame 61 of the first filtering unit and is located inside the frame through hole 62, and is provided along the width direction (Y-axis direction) of the frame 61 ( bar).

Meanwhile, the vertical bar 92 is fixed to the horizontal bar 91 and located inside the frame through-hole 62, and is provided along the height direction (Z-axis direction) of the frame 61, at least at one of both ends. One end may be provided as a bar that is not fixed to the frame 61. Figure 6 (a) shows an example where both ends of the vertical bar 92 are not fixed to the frame 61.

The vertical bar 92 may be provided as a plurality of bars spaced apart from each other along the width direction (Y-axis direction) of the frame. Figure 6 (a) shows an example where the vertical bar 92 is provided with a first vertical bar 921, a second vertical bar 922, and a third vertical bar 923.

When the compressor 53 operates at the water film removal frequency, the water film removal units 91 and 92 of FIG. 6 (a) vibrate inside the frame through hole 62 and supply external force to the first filter 63. (Shake the first filter). When an external force is input to the first filter 63, the water film formed on the surface of the first filter 63 is removed in a short time, so the laundry treatment device 100 can solve problems caused by the water film formed on the first filter. there is.

The water film removal unit 9 shown in Figure 6 (b) is also provided with a horizontal bar 94 and a vertical bar 95. The vertical bar 95 in FIG. 6 (b) is provided with one end fixed to the frame 61 and the other end not fixed to the frame 61, and the horizontal bar in FIG. 6 (b) ( 94) may be provided as a bar fixed to the vertical bar 95 and located in the frame through-hole 62, but at least one end of both ends of the horizontal bar 94 is not fixed to the frame 61.

As shown in FIG. 6 (b), the vertical bar 95 includes a first vertical bar 951 and a second vertical bar 952, the lower ends of which are fixed to the frame 61, and the two vertical bars 951 , 952) and may be provided with a third vertical bar 953 whose upper end is fixed to the frame 61. In this case, the horizontal bar 94 is fixed to at least one of the three vertical bars 951, 952, and 953, and both ends may be provided so that neither end is fixed to the frame 61.

As shown in Figure 6 (c), the horizontal bar 94 in Figure 6 (b) will be provided with a first horizontal bar 941, a second horizontal bar 942, and a third horizontal bar 943. You can.

That is, the first horizontal bar 941 is fixed to the first vertical bar 951 but is not fixed to the frame 61, and the second horizontal bar 942 is the second vertical bar ( 952), but is provided with a bar that is not connected to the frame 61, and the third horizontal bar 953 is fixed to the third vertical bar 953, so that the first horizontal bar 941 and the second It may be provided as a bar separate from the horizontal bar 942.

The water film removal unit 9 in FIG. 6 (d) is provided along the height direction of the frame 61 and includes a vertical bar 97 located in the frame through hole 62 and a width direction of the frame 61. It is provided along and is provided with a horizontal bar 96 located in the frame through hole 62.

The vertical bar 97 in Figure 6 (d) includes a first vertical bar 971 and a second vertical bar 972, both ends of which are fixed to the frame 61, one end of which is fixed to the frame and the other end of which is fixed to the frame. It is provided not to be fixed and includes a third vertical bar 973 located between the first vertical bar 971 and the second vertical bar 972.

The horizontal bar 96 in Figure 6 (d) is fixed to the first vertical bar 971, and one end is connected to the first horizontal bar 961 and the second vertical bar 972 fixed to the frame 61. A second horizontal bar 962, one end of which is fixed to the frame 61, and a third horizontal bar fixed to the third vertical bar 973 and separated from the first horizontal bar and the second horizontal bar ( 963). The operating method of the water film removal unit in FIGS. 6 (b) to 6 (d) is the same as the operating method of the water film removal unit in FIG. 6 (a).

Figure 7 shows another embodiment of the water film removal unit 9.

As shown in Figure 7 (a), the water film removal unit 9 has a fixed end fixed to the frame 61 and a free end in contact with the frame 61 or the first filter 63. It may be provided with a water film removal bar (98).

Figure 7 (b) shows a case where the water film removal unit 9 is provided with a first water film removal bar 981 and a second water film removal bar 982, wherein the first water film removal bar 981 is the It extends from the right side of the frame 61 along the width direction of the frame 61, and the second water film removal bar 982 extends from the left side of the frame 61 along the width direction of the frame 61. It can be. The free end of the first water film removal bar 981 and the free end of the second water film removal bar 982 are not connected to each other.

The water film removal bar 98 in FIG. 7 vibrates when the compressor 53 operates at the water film removal frequency (when the actuator operates), and the vibration of the water film removal bar 98 is generated by the first filter 63. is delivered to Therefore, the water film removal bar 98 can remove the water film formed on the first filter 63 in a short time.

As shown in FIG. 7, the frame through-hole 62 may be provided with a vertical frame 9a and a horizontal frame 9b provided along the height and width directions of the frame 61. In this case, The free end of the water film removal bar 98 may be provided to supply external force to the vertical frame 9a or the horizontal frame 9b (to prevent damage to the first filter).

The water film removal bar 99 in FIG. 8 may be provided with the same features as the water film removal bar 98 in FIG. 7 (a), except that the fixed end is fixed to the connection duct 43.

Figure 9 shows an example of a control method of a clothing treatment device equipped with a water film removal unit 9.

The control method can execute a drying step (S10). The drying step (S10) is a step of removing moisture from clothes by operating the heat exchange unit (5) to supply heated dry air to the tub (2).

The drying step (S10) is performed by operating the compressor 53 and the fan 55, and the control unit operates the operating frequency of the compressor 53 at a preset reference frequency and rotates the fan 55. The number can be operated at a preset standard rotation number.

The control method may proceed with a clogging detection step (S20) to determine whether or not more than a standard amount of foreign matter has been filtered through the first filter (63) while the drying step (S10) is in progress.

The blockage detection step (S20) is performed when the rotation speed of the fan 55 becomes lower than the reference rotation speed when supplying the same amount of current to the fan 55, or when the rotation speed of the fan 55 is lowered to the reference rotation speed. It may be provided to determine when cleaning of the first filter 63 is necessary when the amount of current supplied to the fan increases when maintaining the current level.

If it is determined that cleaning of the first filter 63 is necessary through the blockage detection step (S20), the control method can proceed to the cleaning step (S33). The washing step (S33) may include the washing unit 7 spraying water on the first filter 63.

If the rotational speed of the fan 55 is maintained at the standard rotational speed during the cleaning step (S33), the water sprayed from the washing unit 7 does not flow down the first filter 63 and the second filter 63 does not flow down. 1 Problems with passing through the filter 63 may occur. Accordingly, the control method may proceed with a rotation speed change step (S32) in which the rotation speed of the fan 55 is changed from the reference rotation speed to the water film removal rotation speed when the washing step (S33) is performed. The water film removal rotation speed is preferably set to a rotation speed lower than the reference rotation speed.

While the washing step (S33) is in progress or after the washing step (S33) is completed, the control method proceeds to the water film removal step (S31). The water film removal step (S31) is a step in which the operating frequency of the compressor is changed from the reference frequency to the water film removal frequency and maintained for a certain period of time.

The water film removal frequency is preferably set to a frequency lower than the reference frequency. This is because, if the rotation speed of the fan 55 is changed to the water film removal rotation speed lower than the standard rotation speed, the load on the compressor 53 can be minimized only when the operating frequency is lowered.

Since the water film removal frequency is set to the same or similar frequency (range value including the natural frequency) as the natural frequency of the water film removal unit 9, when the operating frequency of the compressor is changed to the water film removal frequency, the water film removal frequency Denial (9) vibrates. When the water film removal unit 9 vibrates, an external force is supplied to the first filter 63, so the clothes treatment device removes the water film formed on the first filter 63 through the water film removal step (S31). You can.

When the washing step (S33) and the water film removal step (S31) are completed (S40), the control method performs a frequency change step (S51) of changing the operating frequency of the compressor 55 from the water film removal frequency to the reference frequency. ) proceed.

Additionally, the control method may proceed with a rotation speed change step (S52) of changing the rotation speed of the fan 55 from the water film removal rotation speed to the reference rotation speed after completing the washing step (S33). If the water film removal step (S31) is completed after the washing step (S33) is completed, the rotation speed changing step (S52) may be arranged to start after the water film removal step is completed.

When the frequency change step (S51) and the rotation speed change step (S52) are completed, the control method determines whether drying of the clothes has been completed (S60) and ends according to the result.

Since the structure and control method of the above-described clothing treatment device are described as an example of the present application, the scope of rights of the present application cannot be limited to the above-described structure and control method.

100: Clothing processing device 1: Cabinet 12: Front panel
12a: Door mounting portion 127: Panel through hole 2: Tub
212: exhaust hole 213: drain hole 23: gasket
231: water supply hole 232: air supply hole 24: water supply unit
25: drain 253: pump 254: housing
255: Impeller 256: Pump motor 3: Drum
4: Circulation passage 41: First duct 42: Second duct
43: connection duct 431: connection body 432: inlet
433: Outlet 434: First mounting portion 435: Support rib
436: Connection passage 437: Second mounting part 5: Heat exchange part
51: first heat exchanger 52: second heat exchanger 53: compressor
54: Refrigerant pipe 55: Fan 6: First filtration unit
61: Frame 62: Frame through hole 63: First filter
7: Washing unit 71: Euro body 711: Washing passage
712: Spray hole 73: Washing water supply pipe 74: Washing valve
8: Second filtration unit 81: Drainage passage 811: First drainage passage
812: Second drain passage 813: Chamber 814: Chamber drain
815: Mounting hole 83: Drawer 831: Drawer body
835: Drawer panel 836: Second filter 84: Drain pipe
9: Meningeal removal unit 91: Horizontal bar 92: Vertical bar
98: Water film removal bar

Claims (10)

A cabinet provided with an inlet and a door that opens and closes the inlet;
a tub provided inside the cabinet to provide a space for storing water;
a drum rotatably provided inside the tub;
a circulation passage including a first duct through which air inside the tub is discharged, a second duct through which air is supplied to the tub, and a connection duct connecting the first duct and the second duct;
a heat exchanger including a fan that moves air along the circulation passage, a first heat exchanger that dehumidifies air introduced into the connection duct, and a second heat exchanger that heats air that has passed through the first heat exchanger;
a first filtering unit including a frame positioned between the first duct and the first heat exchanger, and a first filter fixed to the frame to filter air;
a washing unit that sprays water into the first filter to remove foreign substances remaining in the first filter; and
A clothes treatment device comprising a second filter unit provided with a drain passage that discharges water inside the connection duct to the outside of the connection duct, and a second filter that filters water discharged through the drain passage. . According to paragraph 1,
It further includes a panel through hole provided to penetrate the cabinet,
The clothing treatment device is characterized in that the second filter can be pulled out of the cabinet through the panel through hole. According to paragraph 2,
It further includes a door mounting part provided in the cabinet to provide a space for the door to be mounted, and provided so that the door is not exposed to the outside when the door closes the inlet,
A laundry treatment device, characterized in that the inlet and the panel through-hole are provided in the door mounting part. According to any one of claims 1 to 3,
The washing part
A euro body fixed to the upper part of the frame;
A cleaning passage provided inside the flow path body;
a washing water supply pipe supplying water to the washing passage; and
A clothing treatment device comprising a spray hole provided to penetrate the flow path body and spray water into the first filter. According to any one of claims 1 to 3,
A drain equipped with a pump located at a lower point than the connection duct, a tub first drain pipe that guides water stored in the tub to the pump, and a tub second drain pipe that guides water discharged from the pump to the outside of the cabinet. It further includes a part;
A clothing treatment device, wherein the drain passage is connected to the drain unit. According to clause 5,
The second filtering unit further includes a chamber located outside the connection duct and providing a space in which the second filter is removably accommodated,
The laundry treatment device characterized in that the drain passage includes a first drain passage provided along the bottom of the connection duct, and a second drain passage connecting the first drain passage and the chamber. In paragraph 6
The second filtration unit further includes a drain pipe connecting the chamber to the pump. According to clause 6,
The second filtering unit includes a drawer body located inside the chamber and withdrawn from the chamber through the panel through hole; and an inlet that allows water flowing into the chamber to flow into the drawer body,
The second filter is a clothing treatment device, characterized in that the second filter is provided as a mesh fixed to at least one of the bottom surface, both sides, and the back surface of the drawer body. According to clause 6,
The clothing treatment device is characterized in that the first drainage passage is inclined downward toward the inlet of the second drainage passage. According to clause 6,
a first mounting part provided inside the connection duct to provide a space for mounting the first heat exchanger, and located between the first filter and the second duct;
a second mounting part provided inside the connection duct to provide a space for the second heat exchanger to be mounted, and located between the first mounting part and the second duct; and
A clothing treatment device further comprising a connecting passage that guides condensed water inside the first mounting unit to the first drainage passage.