Double-drum clothing processing equipment and drying method

Abstract

The present invention relates to a double-drum clothing processing device and a drying method. The double-drum clothing processing device includes: a first clothing processing drum and a second clothing processing drum, the first clothing processing drum and the second clothing processing drum are arranged in sequence from top to bottom, and the clothing processing device includes an air duct system, the air duct system includes an air inlet component, an air outlet component, a main drying air duct and two air distribution components, the air outlet component includes an upper air outlet duct and a lower air outlet duct, and the upper air outlet duct and the lower air outlet duct are respectively provided with exhaust ports. One of the two air distribution components corresponds to the air inlet component, and the other air distribution component corresponds to the air outlet component. The present invention can achieve the conventional functions of stabilizing the air pressure in the drum and overflowing bubbles by respectively providing exhaust ports in the upper air outlet duct and the lower air outlet duct, and can also achieve the functions of introducing fresh air and dehumidification during single-drum drying, thereby improving the single-drum drying efficiency, shortening the drying time, and reducing energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing equipment, and in particular to a double-drum clothing processing equipment and a drying method. Background Art

[0002] With the improvement of living standards, people are more pursuing a safe and comfortable clothes drying experience. At present, the drying method of clothes processing devices with drying function has gradually shifted from electric heating drying to heat pump drying. At present, there are double-drum clothes processing equipment on the market that share a set of heat pump systems. In the early stage of single-drum drying, a large amount of high-temperature and high-humidity airflow is generated in the drum, and the working load of the two devices is relatively large. In the related art, by adding a separate direct exhaust air duct, the direct exhaust air duct is opened when direct exhaust is needed to discharge high-humidity air to the external environment, and the air duct is closed when direct exhaust is not needed. The direct exhaust air duct only works when discharging high-temperature moisture and is idle at other times. It has a complex structure, occupies internal space, is not conducive to the effective use of internal space, and has high cost. Summary of the Invention

[0003] In order to overcome the problem in the related art that a double-drum laundry processing device is complicated in structure and increases production costs by adding a direct exhaust air path to discharge high-temperature moisture, the first aspect of the present invention provides a double-drum laundry processing device, the double-drum laundry processing device comprising: a first laundry processing drum and a second laundry processing drum, the first laundry processing drum comprising a first air inlet and a first air outlet, the second laundry processing drum comprising a second air inlet and a second air outlet, the first laundry processing drum and the second laundry processing drum being arranged sequentially from top to bottom, the laundry processing device comprising an air duct system, the air duct system comprising:

[0004] An air inlet assembly, the air inlet assembly comprising an upper air inlet duct and a lower air inlet duct, the outlet end of the upper air inlet duct being connected to the first air inlet, and the outlet end of the lower air inlet duct being connected to the second air inlet,

[0005] an air outlet assembly, the air outlet assembly comprising an upper air outlet duct and a lower air outlet duct, the air inlet end of the upper air outlet duct being connected to the first air outlet, the air inlet end of the lower air outlet duct being connected to the second air outlet of the second laundry processing drum, the upper air outlet duct and the lower air outlet duct respectively forming an exhaust port, the exhaust port connecting the corresponding laundry processing drum with the external environment;

[0006] A main drying air duct is provided between the air inlet assembly and the air outlet assembly, and a drying assembly and an air supply device are provided in the main drying air duct;

[0007] Two air distribution components, one of which corresponds to the air inlet component, and is used to connect the air outlet end of the main drying air duct with the upper air inlet duct and the lower air inlet duct; the other air distribution component corresponds to the air outlet component, and is used to connect the air inlet end of the main drying air duct with the upper air outlet duct and the lower air outlet duct; the air distribution component corresponding to the air inlet component can selectively connect the air outlet end of the main drying air duct with at least one of the upper air inlet duct and the lower air inlet duct, and the air distribution component corresponding to the air outlet component can selectively connect the air inlet end of the main drying air duct with at least one of the upper air outlet duct and the lower air outlet duct.

[0008] In some embodiments, the exhaust port provided in the upper air outlet duct is provided close to the air inlet end of the upper air outlet duct, and the exhaust port provided in the lower air outlet duct is provided close to the air inlet end of the lower air outlet duct.

[0009] In some embodiments, the double-drum laundry processing device further comprises a joint assembly, wherein the joint assembly is provided at the exhaust port, and the exhaust port connects the corresponding laundry processing drum with the external environment through the joint assembly;

[0010] The joint assembly includes two air ports with different apertures, and the joint assembly can selectively connect the exhaust port to one of the two air ports with different apertures.

[0011] In some embodiments, the connector assembly comprises:

[0012] a first air distribution housing, wherein a first air distribution cavity is formed in the first air distribution housing, and a first air outlet, a second air outlet, and a third air outlet are provided on the first air distribution housing, the air flow area of ​​the first air outlet being smaller than the air flow area of ​​the second air outlet, and the third air outlet is connected to the exhaust port;

[0013] The first air distribution member is arranged in the first air distribution cavity. The first air distribution member has a first working position in which the first air outlet is opened and the second air outlet is closed, and a second working position in which the second air outlet is opened and the first air outlet is closed. The first air distribution member can be controlled to switch between the first working position and the second working position.

[0014] In some embodiments, the air distribution component includes a second air distribution shell and a second air distribution piece, a second air distribution cavity is formed in the second air distribution shell, the second air distribution shell is provided with a main air inlet, an upper branch air inlet and a lower branch air inlet connected to the second air distribution cavity, the main air inlet connects the main drying air duct with the second air distribution cavity, the upper branch air inlet is connected to the upper air inlet duct or the upper air outlet duct, the lower branch air inlet is connected to the lower air inlet duct or the lower air outlet duct, the second air distribution piece is arranged in the second air distribution cavity, the second air distribution piece has a first working position for opening the upper branch air inlet and closing the lower branch air inlet at the same time, a second working position for opening the lower branch air inlet and closing the upper branch air inlet at the same time, and a third working position for opening the upper branch air inlet and the lower branch air inlet at the same time, the second air distribution piece can be controlled to switch between the first working position, the second working position and the third working position.

[0015] In some embodiments, when the double-drum laundry processing device operates in a single-drum drying mode, the drying process of the laundry processing drum performing drying includes an internal circulation drying process and a fresh air dehumidification drying process;

[0016] During the internal circulation drying process, the air distribution component corresponding to the air inlet component connects the air flow path between the main drying air duct and the clothes processing drum performing drying, and the air distribution component corresponding to the air outlet component connects the air flow path between the main drying air duct and the clothes processing drum performing drying;

[0017] During the fresh air dehumidification process, the air distribution component corresponding to the air inlet component connects the air flow path between the main drying air duct and the clothing processing drum that performs drying, and the air distribution component corresponding to the air outlet component connects the air flow path between the main drying air duct and the clothing processing drum that does not perform drying.

[0018] In some embodiments, the second air distribution cavity includes a cylindrical cavity, the upper branch air outlet and the lower branch air outlet are spaced apart along the side wall of the cylindrical cavity in the circumferential direction, the main air outlet is arranged opposite to the side wall of the cylindrical cavity in the axial direction, the second air distribution component includes an air distribution component and a connecting component, the air distribution component is connected to the connecting component, the connecting component is rotatably arranged on the side wall of the cylindrical cavity in the axial direction, the air distribution component includes a fitting surface, the fitting surface is fitted with the side wall of the cylindrical cavity in the circumferential direction, the rotation axis of the connecting component coincides with the axis of the cylindrical cavity, and the rotation of the connecting component can drive the fitting surface to slide along the side wall of the cylindrical cavity in the circumferential direction.

[0019] In some embodiments, the air distribution component further includes a driving component connected to the connecting component, and the driving component drives the connecting component to rotate to switch the air distribution component between the first working position, the second working position and the third working position.

[0020] In some embodiments, the double-drum laundry processing device includes a drying component and an air supply device, and the drying component and the air supply device are both arranged in the main drying air duct.

[0021] A third aspect of the present invention provides a drying method for a double-drum laundry processing device, the drying method being used to control the double-drum laundry processing device provided in the second aspect of the present invention, the drying method comprising:

[0022] When the double-drum laundry processing device operates in the single-drum drying mode, the humidity and heat state of the laundry processing drum performing drying is determined, and the two air distribution components are controlled according to the determined humidity and heat state to change the conduction state of the air flow path between the main drying duct and the first laundry processing drum and the second laundry processing drum.

[0023] In some embodiments, determining the heat and humidity state of the laundry processing drum performing drying, and controlling the two air distribution components to connect the airflow paths between the main drying duct and the first laundry processing drum and the second laundry processing drum according to the determined heat and humidity state, includes:

[0024] Controlling the air distribution assembly corresponding to the air inlet assembly to connect the air flow path between the main drying air duct and the laundry processing drum for performing drying, and controlling the air distribution assembly corresponding to the air outlet assembly to connect the air flow path between the main drying air duct and the laundry processing drum for performing drying;

[0025] obtaining the inlet air temperature and the outlet air temperature of the main drying air duct, and when the temperature difference between the inlet air temperature and the outlet air temperature is less than a set temperature difference, maintaining the position state of the air distribution component corresponding to the air inlet component, and controlling the air distribution component corresponding to the air outlet component to connect the air flow path between the main drying air duct and the clothes processing drum that is not performing drying;

[0026] The air outlet temperature of the exhaust port of the clothing processing drum that performs drying is obtained. When the air outlet temperature of the exhaust port is lower than the set air outlet temperature, the air distribution component corresponding to the air outlet component is controlled to restore to a state in which the air flow path between the main drying air duct and the clothing processing drum that performs drying is connected.

[0027] The technical solution of the present invention may include the following beneficial effects: by providing exhaust ports in the upper and lower air outlet ducts, the present invention can achieve conventional functions of stabilizing the air pressure in the drum and preventing bubble overflow, while also achieving the functions of introducing fresh air and dehumidifying during single-drum drying. When the dual-drum laundry processing device is in single-drum drying mode, the coordinated action of the air distribution assembly, the air inlet assembly, the air outlet assembly, and the main drying duct enables the laundry processing drum performing drying to discharge high-temperature and high-humidity air at the highest moisture content stage, and to introduce fresh air inward through the exhaust port corresponding to the laundry processing drum not performing drying, thereby significantly improving the single-drum drying efficiency, shortening the drying time, and reducing energy consumption.

[0028] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0030] Figure 1 FIG. 1 is an airflow path diagram of an inner circulation drying process when the second laundry processing drum in a double-drum laundry processing apparatus is drying alone according to an exemplary embodiment.

[0031] Figure 2 FIG. 1 is an airflow path diagram of an inner circulation drying process when the first laundry processing drum in a double-drum laundry processing apparatus is drying alone according to an exemplary embodiment.

[0032] Figure 3 The figure is an airflow path diagram of a fresh air dehumidification process when the second laundry processing drum in a double-drum laundry processing apparatus is drying alone, according to an exemplary embodiment.

[0033] Figure 4 The figure is an airflow path diagram of a fresh air dehumidification process when the first laundry treatment drum in a double-drum laundry treatment apparatus is drying alone, according to an exemplary embodiment.

[0034] Figure 5 FIG1 is a partial structural diagram of a double-drum laundry processing device according to an exemplary embodiment.

[0035] Figure 6 FIG. 1 is a position diagram of two air distribution components according to an exemplary embodiment.

[0036] Figure 7 is a structural diagram of a joint assembly according to an exemplary embodiment.

[0037] Figure 8 is a cross-sectional view of a joint assembly according to an exemplary embodiment.

[0038] Figure 9 is an exploded view of a joint assembly according to an exemplary embodiment.

[0039] Figure 10 is a schematic diagram of an air distribution component according to an exemplary embodiment.

[0040] Figure 11 is an exploded view of an air distribution assembly according to an exemplary embodiment.

[0041] Figure 12 FIG. 4 is a drying flow chart of a double-drum laundry treatment apparatus according to an exemplary embodiment.

[0042] The reference numerals are as follows:

[0043] 1. First laundry treatment drum; 2. Second laundry treatment drum; 3. Drying assembly; 4. Air supply device; 51. Main drying air duct; 52. Upper air inlet duct; 53. Lower air inlet duct; 54. Upper air outlet duct; 541. Exhaust port; 55. Lower air outlet duct; 6. Connector assembly; 61. First air distribution shell; 611. First air outlet; 612. Second air outlet; 613. Third air outlet; 614. Upper shell; 6141. Front side wall; 615. Lower shell; 6151. Bottom wall; 6152. Rear side wall; 62. First air distribution component; 621. First air distribution component; 6211. First fitting surface ; 622, the first connecting component; 63, the first limiting pressure cover; 64, the condensing component; 65, the first driving component; 66, the connecting pipe; 67, the first air distribution cavity; 671, the arc-shaped wall surface; 7, the air distribution assembly; 71, the second air distribution shell; 711, the side wall of the cylindrical cavity in the axial direction; 712, the side wall of the cylindrical cavity in the circumferential direction; 72, the second air distribution component; 721, the second air distribution component; 722, the second connecting component; 7211, the second fitting surface; 7101, the upper branch air outlet; 7102, the lower branch air outlet; 7103, the main air outlet; 73, the second limiting pressure cover; 74, the second driving component. DETAILED DESCRIPTION

[0044] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0045] According to an exemplary embodiment, Figures 1-6As shown, this embodiment proposes a double-drum laundry processing device, which includes a first laundry processing drum 1, a second laundry processing drum 2 and an air duct system. The first laundry processing drum 1 and the second laundry processing drum 2 are arranged in sequence from top to bottom.

[0046] The air duct system includes an air inlet assembly, an air outlet assembly, a main drying duct 51, and two air distribution assemblies 7. The air inlet assembly includes an upper air inlet duct 52 and a lower air inlet duct 53, and the air outlet assembly includes an upper air outlet duct 54 and a lower air outlet duct 55. The main drying duct 51 is disposed between the first laundry processing drum 1 and the second laundry processing drum 2. The outlet end of the upper air inlet duct 52 communicates with the first air inlet of the first laundry processing drum 1, the outlet end of the lower air inlet duct 53 communicates with the second air inlet of the second laundry processing drum 2, the air inlet end of the upper air outlet duct 54 communicates with the first air outlet of the first laundry processing drum 1, and the air inlet end of the lower air outlet duct 55 communicates with the second air outlet of the second laundry processing drum 2. The upper air outlet duct 54 and the lower air outlet duct 55 each have an exhaust port 541, which connects the corresponding laundry processing drum to the outside environment. In a preferred embodiment, the exhaust port 541 of the upper air outlet duct 54 is located near the air inlet end of the upper air outlet duct 54, and the exhaust port 541 of the lower air outlet duct 55 is located near the air inlet end of the lower air outlet duct 55. The main drying duct 51 is located between the air inlet assembly and the air outlet assembly.

[0047] The double-drum laundry processing device also includes a drying component 3 and an air supply device 4. Both the drying component 3 and the air supply device 4 are arranged in the main drying air duct 51. Under the action of the air supply device 4, the airflow in the first laundry processing drum 1 and / or the second laundry processing drum 2 enters the main drying air duct 51 through the air outlet component, exchanges heat with the drying component 3 to become a high-temperature airflow, and then enters the first laundry processing drum 1 and / or the second laundry processing drum 2 through the air supply device 4. The drying component 3 includes an evaporator and a condenser. The double-drum laundry processing device also includes a compressor and a throttling device. The compressor, condenser, throttling device, and evaporator are sequentially connected to form a refrigerant circulation loop. The drying component 3 is, for example, a two-device structure formed by integrating an evaporator and a condenser, and the air supply device 4 is, for example, an air supply blower.

[0048] One of the two air distribution assemblies 7 corresponds to the air inlet assembly and is used to connect the air outlet of the main drying air duct 51 with the upper air inlet duct 52 and the lower air inlet duct 53. The other of the two air distribution assemblies 7 corresponds to the air outlet assembly and is used to connect the air inlet of the main drying air duct 51 with the upper air outlet duct 54 and the lower air outlet duct 55. The air distribution assembly 7 corresponding to the air inlet assembly can selectively connect the air outlet of the main drying air duct 51 with at least one of the upper air inlet duct 52 and the lower air inlet duct 53, and the air distribution assembly 7 corresponding to the air outlet assembly can selectively connect the air inlet of the main drying air duct 51 with at least one of the upper air outlet duct 54 and the lower air outlet duct 55.

[0049] Compared to conventional twin-drum laundry processing devices that have exhaust ports 541 directly located within the drum, this embodiment locates exhaust ports 541 within the upper and lower air ducts 54, 55, connecting them to the outside environment. This prevents safety hazards such as explosions caused by excessive negative pressure within the laundry processing drum during high-speed rotation, as well as the blockage of the water inlet and outlet caused by excessive foam within the laundry processing drum that cannot be promptly removed. Furthermore, when the twin-drum laundry processing device is in single-drum drying mode, high-temperature, high-humidity air can be discharged through exhaust ports 541 when the drying drum is at a high moisture content, and fresh air can be drawn in through the exhaust ports 541 corresponding to the non-drying drum, thereby improving single-drum drying efficiency. In addition, in this embodiment, the exhaust port 541 is arranged in the upper air outlet duct 54 and the lower air outlet duct 55, so that the introduction of fresh air and the discharge of high-humidity gas during the drying process do not need to pass through the clothing processing drum, but are directly introduced or discharged through the upper air outlet duct 54 or the lower air outlet duct 55, thereby improving the gas circulation efficiency, significantly improving the single-drum drying efficiency, shortening the drying time, and reducing energy consumption.

[0050] In some embodiments, the exhaust port 541 is connected to an exhaust pipe, one end of the exhaust pipe is connected to the exhaust port 541, and the other end passes through the shell of the double-drum clothing processing device to connect the external environment with the exhaust port 541, so as to better realize the function of discharging moisture outward and introducing fresh air inward through the exhaust port 541.

[0051] In some embodiments, as Figure 7-Figure 9 As shown, the double-drum laundry processing device further includes a connector assembly 6, which is disposed at the exhaust port 541. The exhaust port 541 connects the corresponding laundry processing drum to the external environment through the connector assembly 6. The connector assembly 6 includes two air ports with different apertures, and the connector assembly 6 can selectively connect the exhaust port 541 to one of the two air ports with different apertures.

[0052] The joint assembly 6 includes a first air distribution shell 61 and a first air distribution member 62. A first air distribution cavity 67 is formed in the first air distribution shell 61. The first air distribution shell 61 is provided with a first air port 611, a second air port 612, and a third air port 613 that are connected to the first air distribution cavity 67. The air flow area of ​​the first air port 611 is smaller than the air flow area of ​​the second air port 612, that is, the aperture of the first air port 611 is smaller than the aperture of the second air port 612. The third air port 613 is used to communicate with the exhaust port 541 of the clothing processing drum of the double-drum clothing processing device. The first air distribution member 62 is arranged in the first air distribution cavity 67. The first air distribution member 62 has a fourth working position in which the first air port 611 is opened and the second air port 612 is closed, and a fifth working position in which the second air port 612 is opened and the first air port 611 is closed. The first air distribution member 62 can be controlled to switch between the fourth working position and the fifth working position.

[0053] When the first air distribution member 62 is in the fourth working position, the exhaust port 541 of the clothing processing drum is connected to the first air port 611 with a smaller aperture, and the conventional functions of stabilizing air pressure and overflowing bubbles can be realized. When the first air distribution member 62 is in the fifth working position, the exhaust port 541 of the clothing processing drum is connected to the second air port 612 with a larger aperture, and the functions of introducing fresh air and dehumidification during single-drum drying can be realized. In this embodiment, a joint assembly 6 is provided at the exhaust port 541 of the clothing processing drum, and the joint assembly 6 includes two air ports with different apertures. By switching the joint assembly 6 to connect the air ports with different apertures of the exhaust port 541, different clothing processing functions can be realized.

[0054] In some embodiments, as Figure 8 and Figure 9 As shown, the inner wall surface of the first air distribution cavity 67 includes an arcuate wall surface 671, the first air outlet 611 and the second air outlet 612 are opened on the arcuate wall surface 671, the first air distribution member 62 includes a first air distribution component 621 and a first connecting component 622, the first air distribution component 621 is connected to the first connecting component 622, the first connecting component 622 is rotatably arranged in the first air distribution cavity 67, the rotation axis of the first connecting component 622 coincides with the center of the arcuate wall surface 671, the first air distribution component 621 includes a first attached component 621 and a first connecting component 622. The first fitting surface 6211 fits with the curved wall surface 671, that is, the curvature of the first fitting surface 6211 matches the curvature of the curved wall surface 671, and the rotation of the first connecting part 622 can drive the first fitting surface 6211 to slide along the curved wall surface 671, so as to drive the first fitting surface 6211 to rotate to the fifth working position in which the first air outlet 611 is blocked and the second air outlet 612 is opened, and to rotate to the fourth working position in which the second air outlet 612 is blocked and the first air outlet 611 is opened.

[0055] In some embodiments, as Figure 7-Figure 9As shown, the joint assembly 6 includes a first drive component 65, which is connected to the first connecting component 622. The first drive component 65 drives the first connecting component 622 to rotate, so that the first air distribution component 621 switches between the fourth working position and the fifth working position. The top wall of the first air distribution chamber 67 is provided with a first rotating shaft, and the first air distribution component 62 is connected to the first rotating shaft. The first rotating shaft is located on the rotation axis of the first air distribution component 62. The first drive component 65 is connected to the first rotating shaft, and the first drive component 65 drives the first rotating shaft to rotate, thereby driving the first air distribution component 62 to rotate. The first drive component 65 is, for example, a combination of a drive motor and a transmission component. In order to axially limit the first connecting component 622, the air distribution assembly 7 also includes a first limiting pressure cover 63. One end of the first limiting pressure cover 63 is connected to one axial end of the first rotating shaft, and the other end is connected to the top wall of the first air distribution chamber 67. The rotating end of the first connecting component 622 is limited between the first limiting pressure cover 63 and the top wall of the first air distribution chamber 67. In this embodiment, the first driving component 65 is provided to realize the automatic switching of the first air distribution component 62 between the fourth working position and the fifth working position.

[0056] In some embodiments, as Figure 8 and Figure 9 As shown, the joint assembly 6 includes a condensing component 64, which is arranged in the first air distribution chamber 67. The condensing component 64 is used to condense the moisture entering the first air distribution chamber 67. The condensing component 64 is, for example, a water condensation radiator or a heat dissipation fin. In the application scenario of a double-drum laundry processing device, when the double-drum laundry processing device is in a single-drum drying mode, the condensing component 64 condenses the moisture in the drying airflow discharged from the joint assembly 6 when the laundry processing drum performing drying is in a high temperature and high humidity state. Preferably, the condensed water flows back into the laundry processing drum through the passage between the third air port 613 and the exhaust port 541 of the laundry processing drum, and is finally discharged from the drain port of the laundry processing drum.

[0057] In some embodiments, reference Figure 9In the illustrated orientation, the first air distribution housing 61 includes an upper housing portion 614 and a lower housing portion 615. The upper housing portion 614 and the lower housing portion 615 cooperate to enclose a first air distribution chamber 67. The upper housing portion 614 includes a front side wall 6141, and the lower housing portion 615 includes a rear side wall 6152 and a bottom wall 6151. The first air outlet 611 and the second air outlet 612 are both located on the front side wall 6141. The third air outlet 613 is located on the rear side wall 6152 near the bottom wall 6151. The condensing component 64 is located on the bottom wall 6151. The first air outlet 611 and the second air outlet 612 are both located opposite the third air outlet 613. Convection is formed between the first air outlet 611 and the third air outlet 613, and between the second air outlet 612 and the first air outlet 611, so that air from the external environment can quickly flow into the clothes processing drum through the first air distribution chamber 67, and air in the clothes processing drum can quickly flow out of the first air distribution chamber 67. Furthermore, by positioning the third air vent 613 on the rear sidewall 6152 near the bottom wall 6151, condensed water generated by the condensing device can be smoothly discharged into the laundry tub through the third air vent 613. In a preferred embodiment, the bottom wall 6151 is tilted such that the side of the bottom wall 6151 near the front sidewall 6141 is higher than the side of the bottom wall 6151 near the rear sidewall 6152, allowing the condensed water to be quickly discharged into the laundry tub through the third air vent 613.

[0058] In some embodiments, the joint assembly 6 further includes a connecting pipe 66, which is connected to the third air outlet 613, and the connecting pipe 66 is used to connect the third air outlet 613 to the exhaust port 541 of the laundry treatment drum. The connecting pipe 66 is, for example, a bellows, and the bellows can be bent at will so that the position of the joint assembly 6 can be set as needed. In the application scenario of a double-drum laundry treatment device, mounting holes are set at positions corresponding to the first air outlet 611 and the second air outlet 612 of the shell of the double-drum laundry treatment device, and the first air outlet 611 and the second air outlet 612 are respectively set in the corresponding mounting holes to discharge the gas from the exhaust port 541 to the external environment or to introduce fresh air from the external environment into the joint assembly 6 and enter the laundry treatment drum through the exhaust port 541.

[0059] In some embodiments, as Figure 10 and Figure 11As shown, the air distribution component 7 includes a second air distribution shell 71 and a second air distribution member 72. A second air distribution cavity is formed in the second air distribution shell 71. The second air distribution shell 71 is provided with a main air inlet 7103, an upper branch air inlet 7101 and a lower branch air inlet 7102 connected to the second air distribution cavity. The main air inlet 7103 connects the main drying air duct 51 with the second air distribution cavity. The upper branch air inlet 7101 is connected to the upper air inlet duct 52 or the upper air outlet duct 54. The lower branch air inlet 7102 is connected to the lower air inlet duct 53 or the lower air outlet duct 55 is connected, the second air distribution member 72 is arranged in the second air distribution cavity, the second air distribution member 72 has a first working position in which the upper branch air outlet 7101 is opened and the lower branch air outlet 7102 is closed, a second working position in which the lower branch air outlet 7102 is opened and the upper branch air outlet 7101 is closed, and a third working position in which the upper branch air outlet 7101 and the lower branch air outlet 7102 are opened at the same time, and the second air distribution member 72 can be controlled to switch among the first working position, the second working position and the third working position.

[0060] Further, such as Figure 10 and Figure 11 As shown, the second air distribution cavity includes a cylindrical cavity, the upper air outlet 7101 and the lower air outlet 7102 are spaced apart along the side wall 712 of the cylindrical cavity in the circumferential direction, the main air outlet 7103 is arranged opposite to the side wall 711 of the cylindrical cavity in the axial direction, the second air distribution member 72 includes a second air distribution component 721 and a second connecting component 722, the second air distribution component 721 is connected to the second connecting component 722, the second connecting component 722 is rotatably arranged on the side wall 711 in the axial direction of the cylindrical cavity, the second air distribution component 721 includes a second fitting surface 7211, the second fitting surface 7211 is attached to the side wall 712 in the circumferential direction of the cylindrical cavity The second connecting part 722 is fitted together, and the rotation axis of the second connecting part 722 coincides with the axis of the cylindrical cavity. The rotation of the second connecting part 722 can drive the second fitting surface 7211 to slide along the side wall 712 in the circumferential direction of the cylindrical cavity, so as to drive the second fitting surface 7211 to rotate to the second working position in which the upper branch air outlet 7101 is blocked and the lower branch air outlet 7102 is opened, and to the first working position in which the lower branch air outlet 7102 is blocked and the upper branch air outlet 7101 is opened, and to the third working position between the upper branch air outlet 7101 and the lower branch air outlet 7102 so that the upper branch air outlet 7101 and the lower branch air outlet 7102 are opened at the same time.

[0061] In some embodiments, as Figure 10 and Figure 11As shown, the air distribution component 7 also includes a second driving component 74, which is connected to the second connecting component 722. The second driving component 74 drives the second connecting component 722 to rotate so that the second air distribution component 721 switches between the first working position, the second working position and the third working position. A second rotating shaft is provided on the bottom wall 6151 in the axial direction of the second air distribution chamber. The second air distribution component 72 is connected to the second rotating shaft, and the second rotating shaft is located on the rotation axis of the second air distribution component 72. The second driving component 74 is connected to the second rotating shaft. The second driving component 74 drives the second rotating shaft to rotate, thereby driving the second air distribution component 72 to rotate. The second driving component 74 is, for example, a combination of a drive motor and a transmission component. In order to axially limit the second connecting component 722, the air distribution assembly 7 also includes a second limiting pressure cover 73, one end of the second limiting pressure cover 73 is connected to one axial end of the second rotating shaft, and the other end is connected to the side wall 711 in the axial direction of the cylindrical cavity. The rotating end of the second connecting member is limited between the second limiting pressure cover 73 and the side wall 711 in the axial direction of the cylindrical cavity.

[0062] The two air distribution components 7 of this embodiment are respectively arranged in front and behind the main drying air duct 51. By controlling the two air distribution components 7, the first clothing processing drum 1 and the second clothing processing drum 2 can be dried simultaneously or separately. Within the limited structural space, the heat pump system can be maximized and the energy consumption of double-drum drying can be reduced.

[0063] The clothing processing device of this embodiment has three drying modes, including a single-drum drying mode for drying the first clothing processing drum 1 alone, a single-drum drying mode for drying the second clothing processing drum 2 alone, and a dual-drum simultaneous drying mode. In addition, when the dual-drum clothing processing device operates in the single-drum drying mode, the drying process of the clothing processing drum performing drying includes an internal circulation drying process and a fresh air dehumidification drying process; in the internal circulation drying process, the air distribution component corresponding to the air inlet component connects the main drying air duct 51 only to the air flow path between the clothing processing drum performing drying, and the air distribution component corresponding to the air outlet component connects the main drying air duct 51 only to the air flow path between the clothing processing drum performing drying; in the fresh air dehumidification process, the air distribution component corresponding to the air inlet component connects the main drying air duct 51 only to the air flow path between the clothing processing drum performing drying, and the air distribution component corresponding to the air outlet component connects the main drying air duct 51 only to the air flow path between the clothing processing drum not performing drying.

[0064] The following is a process of drying clothes separately in combination with the first laundry treatment drum 1 and the second laundry treatment drum 2:

[0065] The first clothes processing drum 1 is dried separately in the single-drum drying mode: the air distribution component 7 corresponding to the air inlet component and the air distribution component 7 corresponding to the air outlet component are started, and the second air distribution components 72 in the two air distribution components 7 are both in the first working position, so that the air duct loop from the main drying air duct 51 to the second clothes processing drum 2 is closed. At this time, in the drying system, only the first clothes processing drum 1 enters the inner circulation drying process of the air duct loop, realizing the drying of the first clothes processing drum 1 separately. The airflow direction is as follows Figure 2 As shown. In the early stage of drying the first clothes processing drum 1, in order to reduce the working pressure of the drying component 3 and improve the drying efficiency of the first clothes processing drum 1, it is necessary to control the first clothes processing drum 1 to be in a dehumidification and drying state. At this time, the second air distribution member 72 of the air distribution component 7 corresponding to the air inlet component is in the first working position, and the second air distribution member 72 of the air distribution component 7 corresponding to the air outlet component is in the second working position. At this time, the natural air from the external environment flows through the exhaust port 541 corresponding to the second clothes processing drum 2 through the lower air outlet duct 55 and the air distribution component 7 to the drying component 3. The high-temperature dry gas generated by the drying component 3 enters the first clothes processing drum 1, and the moisture in the first clothes processing drum 1 is taken out of the first clothes processing drum 1 through the exhaust port 541 corresponding to the first clothes processing drum 1 and discharged into the external environment, thereby realizing the fresh air introduction and direct dehumidification and drying process of the first clothes processing drum 1. The airflow direction is as shown in FIG. Figure 4 shown.

[0066] Single-drum drying mode for drying the second laundry processing drum 2 separately: the air distribution assembly 7 corresponding to the air inlet assembly and the air distribution assembly 7 corresponding to the air outlet assembly are started, and the second air distribution components 72 in the two air distribution assemblies 7 are both in the second working position, so that the air duct loop from the main drying air duct 51 to the first laundry processing drum 1 is closed. At this time, in the drying system, only the second laundry processing drum 2 enters the inner circulation drying process of the air duct loop, realizing the drying of the second laundry processing drum 2 separately. The airflow direction is as follows: Figure 1 As shown. In the early stage of drying the second clothing treatment drum 2, in order to reduce the working pressure of the drying component 3 and improve the drying efficiency of the second clothing treatment drum 2, it is necessary to control the second clothing treatment drum 2 to be in a dehumidification and drying state. At this time, the second air distribution member 72 of the air distribution component 7 corresponding to the air inlet component is in the second working position, and the second air distribution member 72 of the air distribution component 7 corresponding to the air outlet component is in the first working position. At this time, the natural air from the external environment flows to the drying component 3 through the exhaust port 541 corresponding to the first clothing treatment drum 1 through the upper air outlet duct 54 and the air distribution component 7. The high-temperature dry gas generated by the drying component 3 enters the second clothing treatment drum 2, and the moisture in the second clothing treatment drum 2 is taken out of the second clothing treatment drum 2 through the exhaust port 541 corresponding to the second clothing treatment drum 2 and discharged into the external environment, thereby realizing the fresh air introduction and direct dehumidification and drying process of the second clothing treatment drum 2. The airflow direction is as shown in FIG. Figure 3 shown.

[0067] Double-drum drying mode: the air distribution component 7 corresponding to the air inlet component and the air distribution component 7 corresponding to the air outlet component are started, and the second air distribution components 72 in the two air distribution components 7 are rotated to the intermediate transition position between the upper branch air outlet 7101 and the lower branch air outlet 7102, that is, they are located in the third working position. At this position, the second air distribution component 72 does not coincide with any air outlet, so that the air duct loops leading to the first clothing processing drum 1 and the second clothing processing drum 2 are both opened. At this time, in the drying system, the first clothing processing drum 1 and the second clothing processing drum 2 can both circulate air in the air duct loop to achieve simultaneous double-drum drying.

[0068] According to an exemplary embodiment, this embodiment provides a drying method for a double-drum laundry processing device. The drying method is used to control the double-drum laundry processing device provided in any of the above embodiments. The drying method includes:

[0069] When the double-drum laundry processing device operates in the single-drum drying mode, the humidity and heat state of the laundry processing drum performing drying is determined, and the two air distribution components 7 are controlled according to the determined humidity and heat state to change the conduction state of the air flow path between the main drying duct 51 and the first laundry processing drum 1 and the second laundry processing drum 2.

[0070] This embodiment is applicable to a double-drum clothing processing device in which one clothing processing drum is drying while the other clothing processing drum is not drying. By judging the heat and humidity state of the clothing processing drum performing drying, it is determined whether the clothing processing drum performing drying enters the fresh air dehumidification program. When the clothing processing drum performing drying needs to enter the fresh air dehumidification program, the air distribution component 7 controls the connection and closing between the first clothing processing drum 1, the second clothing processing drum 2 and each air duct, and realizes the connection and closing between the clothing processing drum and the external environment by opening the exhaust port 541 provided in the upper air outlet duct 54 and the lower air outlet duct 55. The air duct is controlled to be fully or partially connected, and the high-temperature and high-humidity air at the stage with the maximum moisture content in the drying process of the clothing processing drum performing drying is discharged to the external environment through the exhaust port 541 corresponding to the clothing processing drum performing drying, and the fresh air is introduced into the air supply device 4 through the exhaust port 541 corresponding to the clothing processing drum not performing drying, thereby improving the drying efficiency, shortening the drying time and reducing energy consumption.

[0071] In one example, Figure 12 is a drying flow chart of a double-drum laundry processing device according to an exemplary embodiment, with reference to Figure 12 , determining the humidity and heat state of the clothes processing drum for drying, and controlling the two air distribution components 7 to connect the airflow path between the main drying air duct 51 and the first clothes processing drum 1 and the second clothes processing drum 2 according to the determined humidity and heat state, including:

[0072] S121. Control the air distribution component 7 corresponding to the air inlet component to connect the air flow path between the main drying air duct 51 and the clothes processing drum that performs drying, and control the air distribution component 7 corresponding to the air outlet component to connect the air flow path between the main drying air duct 51 and the clothes processing drum that performs drying.

[0073] In this embodiment, when the double-drum laundry processing device is running in the single-drum drying mode, the main drying air duct 51 is first connected to the laundry processing drum for drying through the air distribution component 7 corresponding to the air inlet component, and the main drying air duct 51 is connected to the laundry processing drum for drying through the air distribution component 7 corresponding to the air outlet component. At this time, the laundry processing drum for drying is in the internal circulation drying process, and the direction of the drying air flow is: laundry processing drum for drying - air outlet component - air supply device 4 - drying component 3 - air inlet component. The air flow direction is as follows: Figure 1 and Figure 2 At this time, the exhaust port 541 corresponding to the laundry drying drum plays a role in maintaining the air pressure balance in the drum.

[0074] S122. Obtain the inlet air temperature and outlet air temperature of the main drying air duct 51. When the temperature difference between the inlet air temperature and the outlet air temperature is less than the set temperature difference, maintain the position state of the air distribution component 7 corresponding to the air inlet component, and control the air distribution component 7 corresponding to the air outlet component to connect the air flow path between the main drying air duct 51 and the clothing processing drum that is not performing drying.

[0075] In this embodiment, the air inlet and outlet ends of the main drying duct 51 are respectively provided with temperature sensors. As single-drum drying proceeds, a high-temperature, high-humidity airflow is generated in the clothes processing drum performing drying. The inlet and outlet temperatures of the main drying duct 51 are detected to determine whether the clothes processing drum performing drying is in a high-temperature, high-humidity state. If the temperature difference between the inlet and outlet temperatures is less than a set temperature difference, it is determined that the clothes processing drum performing drying has reached a high-temperature, high-humidity state. To reduce the operating load of the drying assembly 3 and improve drying efficiency, the clothes processing drum performing drying needs to enter a fresh air dehumidification drying state. At this time, the main drying duct 51 is connected only to the clothes processing drum performing drying via the air distribution assembly 7 corresponding to the air inlet assembly, and the main drying duct 51 is connected only to the clothes processing drum performing drying via the air distribution assembly 7 corresponding to the air outlet assembly. At this time, the direction of the drying air flow is: external environment - the exhaust port 541 corresponding to the clothes processing drum that is not drying - the clothes processing drum that is not drying - the air outlet component - the air distribution component 7 - the main drying air duct 51 - the air distribution component 7 - the air inlet component - the clothes processing drum that is drying - the exhaust port 541 corresponding to the clothes processing drum that is drying - the external environment. The direction of the air flow is as follows: Figure 3 and Figure 4The laundry processing drum that is not drying in this embodiment may be an idle laundry processing drum, or a laundry processing drum that is performing a washing program or a care program.

[0076] If it is determined based on the air inlet temperature and air outlet temperature of the main drying air duct 51 that the clothes processing drum performing the drying has not reached the high temperature and high humidity state, the internal circulation drying process is continued until the drying is completed.

[0077] S123. Obtain the air outlet temperature of the exhaust port 541 of the clothes processing drum that performs drying. When the air outlet temperature of the exhaust port 541 is lower than the set air outlet temperature, control the air distribution component 7 corresponding to the air outlet component to restore the state in which the air flow path between the main drying air duct 51 and the clothes processing drum that performs drying is connected.

[0078] In this embodiment, when the drying drum is in the fresh air dehumidification and drying state, it is determined whether the outlet air temperature of the exhaust port 541 of the drying drum has reached a set temperature. A temperature sensor is provided at the exhaust port 541. When the drying drum first enters the fresh air dehumidification and drying state, the outlet air temperature of the drying drum is relatively high. As the high-temperature and high-humidity air in the drum is discharged and fresh air is introduced, the temperature of the exhaust port 541 of the drying drum decreases. When the outlet air temperature reaches the set temperature, it is determined that the hot and humid air in the drying drum has been discharged, and the drying drum needs to re-enter the internal circulation drying process. That is, the main drying air duct 51 is connected only to the drying drum via the air distribution assembly 7 corresponding to the air inlet assembly, and the main drying air duct 51 is connected only to the drying drum via the air distribution assembly 7 corresponding to the air outlet assembly. At this time, the exhaust port 541 corresponding to the drying drum serves to maintain the air pressure balance in the drum.

[0079] The drying method of this embodiment is intended to discharge a large amount of high-humidity airflow in the clothes processing drum during the early stage of single-drum drying, thereby reducing the operating load of the drying component 3 and improving drying efficiency. The following situations may occur for loads of different weights: A large load with high moisture content results in a large amount of high-humidity airflow in the early stage of drying. The control method of this embodiment for single-drum drying determines the inlet and outlet air temperatures of the main drying duct 51, resulting in multiple fresh air introduction and dehumidification drying states. A small load with low moisture content results in less high-humidity airflow in the early stage of drying. The control method of this embodiment determines the inlet and outlet air temperatures of the main drying duct 51, resulting in fewer fresh air introduction and dehumidification drying states, and there may be situations where the fresh air introduction and dehumidification drying state is no longer entered.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0081] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

Claims

1. A double-drum laundry processing device, characterized in that: The double-drum laundry processing device includes a first laundry processing drum and a second laundry processing drum, wherein the first laundry processing drum includes a first air inlet and a first air outlet, and the second laundry processing drum includes a second air inlet and a second air outlet. The first laundry processing drum and the second laundry processing drum are arranged sequentially from top to bottom. The double-drum laundry processing device includes an air duct system, which includes: An air inlet assembly, the air inlet assembly comprising an upper air inlet duct and a lower air inlet duct, the outlet end of the upper air inlet duct being connected to the first air inlet, and the outlet end of the lower air inlet duct being connected to the second air inlet, an air outlet assembly, the air outlet assembly comprising an upper air outlet duct and a lower air outlet duct, the air inlet end of the upper air outlet duct being connected to the first air outlet, the air inlet end of the lower air outlet duct being connected to the second air outlet of the second laundry processing drum, the upper air outlet duct and the lower air outlet duct respectively forming an exhaust port, the exhaust port connecting the corresponding laundry processing drum with the external environment; A main drying air duct is provided between the air inlet assembly and the air outlet assembly, wherein a drying assembly and an air supply device are provided in the main drying air duct; Two air distribution components, one of the air distribution components corresponds to the air inlet component, and is used to connect the air outlet end of the main drying air duct with the upper air inlet duct and the lower air inlet duct; the other air distribution component corresponds to the air outlet component, and is used to connect the air inlet end of the main drying air duct with the upper air outlet duct and the lower air outlet duct; the air distribution component corresponding to the air inlet component can selectively connect the air outlet end of the main drying air duct with at least one of the upper air inlet duct and the lower air inlet duct, and the air distribution component corresponding to the air outlet component can selectively connect the air inlet end of the main drying air duct with at least one of the upper air outlet duct and the lower air outlet duct; When the double-drum clothes processing device is in the single-drum drying mode, through the coordinated action of the air distribution component, the air inlet component, the air outlet component and the main drying air duct, the clothes processing drum performing drying is discharged with high temperature and high humidity when the moisture content is the highest, and fresh air is introduced inward through the exhaust port corresponding to the clothes processing drum not performing drying.

2. The double-drum laundry processing device according to claim 1, characterized in that: The exhaust port provided on the upper air outlet duct is arranged close to the air inlet end of the upper air outlet duct, and the exhaust port provided on the lower air outlet duct is arranged close to the air inlet end of the lower air outlet duct.

3. The double-drum laundry processing device according to claim 1, characterized in that: The double-drum laundry processing device further includes a joint assembly, which is arranged at the exhaust port, and the exhaust port connects the corresponding laundry processing drum with the external environment through the joint assembly; The joint assembly includes two air ports with different apertures, and the joint assembly can selectively connect the exhaust port to one of the two air ports with different apertures.

4. The double-drum laundry processing device according to claim 3, characterized in that: The joint assembly comprises: a first air distribution housing, wherein a first air distribution cavity is formed in the first air distribution housing, and a first air outlet, a second air outlet, and a third air outlet are provided on the first air distribution housing, the air flow area of ​​the first air outlet being smaller than the air flow area of ​​the second air outlet, and the third air outlet is connected to the exhaust port; The first air distribution member is arranged in the first air distribution cavity. The first air distribution member has a first working position in which the first air outlet is opened and the second air outlet is closed, and a second working position in which the second air outlet is opened and the first air outlet is closed. The first air distribution member can be controlled to switch between the first working position and the second working position.

5. The double-drum laundry processing device according to any one of claims 1 to 4, characterized in that: The air distribution component includes a second air distribution shell and a second air distribution piece, a second air distribution cavity is formed in the second air distribution shell, the second air distribution shell is provided with a main air inlet, an upper branch air outlet and a lower branch air outlet connected with the second air distribution cavity, the main air inlet connects the main drying air duct with the second air distribution cavity, the upper branch air outlet is connected to the upper air inlet duct or the upper air outlet duct, and the lower branch air outlet is connected to the lower air inlet duct or the lower air outlet duct, the second air distribution piece is arranged in the second air distribution cavity, the second air distribution piece has a first working position that opens the upper branch air outlet and closes the lower branch air outlet at the same time, a second working position that opens the lower branch air outlet and closes the upper branch air outlet at the same time, and a third working position that opens the upper branch air outlet and the lower branch air outlet at the same time, and the second air distribution piece can be controlled to switch between the first working position, the second working position and the third working position.

6. The double-drum laundry processing device according to claim 5, characterized in that: When the double-drum laundry processing device operates in a single-drum drying mode, the drying process of the laundry processing drum includes an internal circulation drying process and a fresh air dehumidification drying process; During the internal circulation drying process, the air distribution component corresponding to the air inlet component connects the air flow path between the main drying air duct and the clothes processing drum performing drying, and the air distribution component corresponding to the air outlet component connects the air flow path between the main drying air duct and the clothes processing drum performing drying; During the fresh air dehumidification and drying process, the air distribution component corresponding to the air inlet component connects the air flow path between the main drying air duct and the clothing processing drum that performs drying, and the air distribution component corresponding to the air outlet component connects the air flow path between the main drying air duct and the clothing processing drum that does not perform drying.

7. The double-drum laundry processing device according to claim 5, characterized in that: The second air distribution cavity includes a cylindrical cavity, the upper branch air outlet and the lower branch air outlet are spaced apart along the side wall of the cylindrical cavity in the circumferential direction, the main air outlet is arranged opposite to the side wall of the cylindrical cavity in the axial direction, the second air distribution component includes an air distribution component and a connecting component, the air distribution component is connected to the connecting component, the connecting component is rotatably arranged on the side wall of the cylindrical cavity in the axial direction, the air distribution component includes a fitting surface, the fitting surface is fitted with the side wall of the cylindrical cavity in the circumferential direction, the rotation axis of the connecting component coincides with the axis of the cylindrical cavity, and the rotation of the connecting component can drive the fitting surface to slide along the side wall of the cylindrical cavity in the circumferential direction.

8. The double-drum laundry processing device according to claim 7, characterized in that: The air distribution component further includes a driving component connected to the connecting component. The driving component drives the connecting component to rotate to switch the air distribution component between the first working position, the second working position and the third working position.

9. A drying method for a double-drum laundry processing device, characterized in that: The drying method is used to control the double-drum laundry processing device according to any one of claims 1 to 8, and the drying method includes: When the double-drum laundry processing device operates in the single-drum drying mode, the humidity and heat state of the laundry processing drum performing drying is determined, and the two air distribution components are controlled according to the determined humidity and heat state to change the conduction state of the air flow path between the main drying duct and the first laundry processing drum and the second laundry processing drum.

10. The drying method of a double-drum laundry processing device according to claim 9, characterized in that: The determining of the heat and humidity state of the laundry processing drum performing drying, and controlling the two air distribution components to connect the main drying air duct to the air flow paths between the first laundry processing drum and the second laundry processing drum according to the determined heat and humidity state, includes: Controlling the air distribution assembly corresponding to the air inlet assembly to connect the air flow path between the main drying air duct and the laundry processing drum for performing drying, and controlling the air distribution assembly corresponding to the air outlet assembly to connect the air flow path between the main drying air duct and the laundry processing drum for performing drying; obtaining the inlet air temperature and the outlet air temperature of the main drying air duct, and when the temperature difference between the inlet air temperature and the outlet air temperature is less than a set temperature difference, maintaining the position state of the air distribution component corresponding to the air inlet component, and controlling the air distribution component corresponding to the air outlet component to connect the air flow path between the main drying air duct and the clothes processing drum that is not performing drying; The air outlet temperature of the exhaust port of the clothing processing drum that performs drying is obtained. When the air outlet temperature of the exhaust port is lower than the set air outlet temperature, the air distribution component corresponding to the air outlet component is controlled to restore to a state in which the air flow path between the main drying air duct and the clothing processing drum that performs drying is connected.

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