Control method of a laundry treating apparatus

Abstract

The present application relates to the technical field of clothes processing, and particularly provides a control method of clothes processing equipment, aiming at solving the problem of poor effect of the bacteria removal mode of the washing machine in the prior art. To this end, the control method comprises: judging whether the clothes in the inner drum are taken out after the spinning program is completed; if the clothes are not taken out, the inner drum is controlled to rotate, and the light plasma fresh air device is controlled to operate. Through the rotation of the inner drum and the operation of the light plasma fresh air device, the gas containing ionic substances enters the inner drum to perform disinfection and sterilization treatment on the inner drum and the clothes located therein, so that better bacteria removal effect can be obtained, the clothes can be prevented from producing peculiar smell, and the user experience is improved.

Description

Technical Field

[0001] This invention relates to the field of clothing processing technology, and specifically provides a control method for clothing processing equipment. Background Technology

[0002] As people's living standards improve, washing machines are being used more and more frequently in daily life. When users need to wash clothes, they simply put the clothes and detergent into the washing machine drum and run the machine to clean them. However, this method of washing with water can only remove stains from clothes; it cannot remove bacteria, viruses, or other contaminants.

[0003] Therefore, current methods for sterilizing clothing typically include ultraviolet (UV) irradiation, ozone, and silver ions. However, UV irradiation sterilization usually only works on the surface of the clothing exposed to UV light, and the limited space inside the drum makes it difficult to achieve UV coverage of all clothing surfaces. Ozone sterilization is effective, but ozone is harmful to humans; the National Indoor Air Quality Standards strictly limit ozone levels. Furthermore, ozone's strong oxidizing properties can easily cause clothing to fade, hindering its widespread adoption. Silver ion sterilization involves adding nanomaterials to the surfaces of the washing machine's inner and outer drums, releasing bactericidal silver ions during washing. However, silver ion sterilization requires the clothing to be in full contact with the silver ions to be effective; areas not in contact will not be sterilized.

[0004] Accordingly, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the sterilization method of washing machines in the prior art is not effective.

[0006] This invention provides a control method for a garment processing device. The garment processing device includes a housing and an inner drum disposed within the housing. The garment processing device is equipped with a photo-plasma fresh air device, which includes a housing and a photo-plasma tube disposed within the housing. The housing has an air inlet and an air outlet. The air inlet is in communication with the environment, and the air outlet is in communication with the inner drum. An air duct is formed between the air inlet and the air outlet. At least a portion of the photo-plasma tube is located within the air duct. The photo-plasma tube is configured to ionize air when energized, thereby generating a gas containing ionized substances. The control method includes: after the spin-drying process is completed, determining whether the garments in the inner drum have been removed; if the garments have not been removed, controlling the inner drum to rotate and controlling the photo-plasma fresh air device to operate.

[0007] In a preferred embodiment of the above control method, the photo-plasma fresh air device further includes a fan, which is disposed inside the housing. The fan is configured to introduce air from the environment into the housing through the air inlet and send out the gas ionized by the photo-plasma tube through the air outlet. The step of "controlling the operation of the photo-plasma fresh air device" further includes: controlling the photo-plasma tube to operate at a preset frequency and controlling the fan to operate at a preset fan speed.

[0008] In a preferred embodiment of the above control method, the frequency of the photoplasma tube is determined by the following steps: obtaining the initial weight of the inner drum; obtaining the first weight of the inner drum when it is determined that the clothing has not been removed; calculating the first difference between the first weight and the initial weight; and determining the frequency of the photoplasma tube based on the first difference.

[0009] In a preferred embodiment of the above control method, the control method further includes: the frequency of the photoplasma tube increases as the first difference increases.

[0010] In the preferred embodiment of the above control method, the step of "controlling the rotation of the inner cylinder" specifically includes: controlling the inner cylinder to rotate alternately in the forward and reverse directions at a preset inner cylinder speed.

[0011] In a preferred embodiment of the above control method, the control method further includes: after controlling the photo-plasma fresh air device to operate for a first preset time, controlling the photo-plasma fresh air device to stop operating; and / or after controlling the inner cylinder to rotate alternately in the forward and reverse directions at a preset inner cylinder speed for a second preset time, controlling the inner cylinder to stop rotating.

[0012] In the preferred embodiment of the above control method, the step of "determining whether the clothes in the inner drum have been removed" further includes: after the spin-drying program is completed, obtaining the second weight of the inner drum; after obtaining the second weight for a third preset time, obtaining the third weight of the inner drum; calculating the second difference between the second weight and the third weight; comparing the second difference with the weight threshold; if the second difference is greater than the weight threshold, then determining that the clothes have been removed.

[0013] In the preferred embodiment of the above control method, the step of "determining whether the clothes in the inner drum have been removed" further includes: if the second difference is less than or equal to the weight threshold, then further determining whether the clothes have been removed based on the humidity in the inner drum.

[0014] In the preferred embodiment of the above control method, the step of "further determining whether the clothing has been removed based on the humidity inside the inner drum" further includes: obtaining a first humidity inside the inner drum; obtaining a second humidity inside the inner drum after obtaining the first humidity for a fourth preset time; calculating a third difference between the first humidity and the second humidity; comparing the third difference with a humidity threshold; if the third difference is greater than the humidity threshold, determining that the clothing has been removed; if the third difference is less than or equal to the humidity threshold, determining that the clothing has not been removed.

[0015] In a preferred embodiment of the above control method, the outer casing is provided with a drum door. The step of "determining whether the clothes inside the inner drum have been removed" further includes: after the spin-drying program has been completed, obtaining the voltage level of the drum door; comparing the voltage level with a voltage threshold; if the voltage level is less than or equal to the voltage threshold, determining that the clothes have been removed; if the voltage level is greater than the voltage threshold and the duration is greater than or equal to a preset time, determining that the clothes have not been removed.

[0016] In the technical solution of this invention, the clothing treatment device includes a shell and an inner drum disposed within the shell. The photo-plasma fresh air device includes a shell and a photo-plasma tube disposed within the shell. The shell has an air inlet and an air outlet. The air inlet is connected to the environment, and the air outlet is connected to the inner drum. An air duct is formed between the air inlet and the air outlet. At least a portion of the photo-plasma tube is located within the air duct. The photo-plasma tube is configured to ionize air when energized, thereby generating a gas containing ionized substances. With this configuration, ambient air enters the shell through the air inlet. When energized, the photo-plasma tube within the shell decomposes pure oxygen and water in the air to generate hydroxyl ions, free oxygen atoms, and superoxide ions, resulting in ionized substances. The gas containing these ionized substances then enters the inner drum through the air outlet. Since these ionized substances can effectively remove bacteria and viruses, the ionized substances in the gas can also disinfect bacteria and viruses inside the inner drum and on the clothing therein. In other words, this application can effectively remove bacteria, viruses, etc. from the inner drum and the clothes inside by using a photo-plasma fresh air device, thus achieving a good sterilization effect.

[0017] The control method of this invention includes: after the spin-drying program is completed, determining whether the clothes inside the inner drum have been removed. If the clothes have not been removed, controlling the inner drum to rotate and controlling the operation of the photo-plasma fresh air device. If clothes are not removed promptly after washing and spin-drying, they may develop odors. In this case, controlling the rotation of the inner drum and operating the photo-plasma fresh air device creates a negative pressure at the air outlet. Under this negative pressure, ambient air can more easily enter the casing through the air inlet, and then be ionized by the photo-plasma fresh air device to generate gas containing ionized substances. This gas then enters the inner drum through the air outlet, disinfecting the inner drum and the clothes inside. Furthermore, the rotation of the inner drum also agitates the clothes, shaking them apart and allowing them to better contact the gas containing ionized substances, thereby achieving a better sterilization effect. Through this control method, a better sterilization effect can be achieved, and even if clothes are not removed promptly after washing, they will not develop odors, thus effectively improving the user experience.

[0018] Furthermore, the photo-plasma fresh air device also includes a fan housed within the casing. This fan is configured to draw ambient air into the casing through an air inlet and expel the gas ionized by the photo-plasma tube through an air outlet. This fan draws more ambient air into the casing, generating more gas containing ionized substances, thus achieving a better sterilization effect. Additionally, the gas introduced into the inner drum by the fan also expels existing air, enhancing airflow within the drum and achieving deodorization, preventing mold and bacterial growth, and effectively improving the user experience. In this case, the step of "controlling the operation of the photo-plasma fresh air device" further includes: controlling the photo-plasma tube to operate at a preset frequency and controlling the fan to operate at a preset fan speed. Thus, when it is determined that clothing has not been removed, both the photo-plasma tube and the fan are simultaneously controlled, generating more gas containing ionized substances and sending it into the inner drum to disinfect the drum and the clothing inside, thereby achieving a better sterilization effect, better preventing odors from developing on clothing, and improving the user experience.

[0019] Furthermore, the step of "controlling the inner drum rotation" specifically includes: controlling the inner drum to rotate alternately in both forward and reverse directions at a preset rotation speed. In this way, by controlling the inner drum to rotate alternately in both directions, the clothes can be more agitated and shaken out, allowing the clothes to come into more full contact with the gas containing ionized substances, thereby achieving a better sterilization effect.

[0020] Furthermore, the control method of the present invention further includes: after controlling the photo-plasma fresh air device to operate for a first preset time, indicating that the photo-plasma fresh air device has been operating for a period of time and bacteria, viruses, etc. on the inner drum and clothing have been disinfected, the photo-plasma fresh air device is then stopped. After controlling the inner drum to rotate alternately forward and backward at a preset inner drum speed for a second preset time, the clothing inside the inner drum has been completely shaken out, and it has been able to come into sufficient contact with the gas containing ionized substances, at which point the inner drum is stopped rotating. Through this control method, a good sterilization effect can be achieved while saving energy.

[0021] Furthermore, the system determines whether the clothes inside the inner drum have been removed based on the second difference between the second weight of the inner drum and the third weight of the inner drum after a third preset time. If the second difference is greater than a weight threshold, it indicates that the weight of the inner drum has decreased significantly after the third preset time, and the clothes are determined to have been removed. If the second difference is less than or equal to the weight threshold, it indicates that the weight of the inner drum has decreased only slightly after the third preset time, and the system further determines whether the clothes have been removed based on the humidity inside the inner drum. If the third difference between the first humidity inside the inner drum and the second humidity after a fourth preset time is greater than a humidity threshold, it indicates that the humidity inside the inner drum after the fourth preset time differs significantly from the first humidity, and the clothes are determined to have been removed. If the third difference is less than or equal to the humidity threshold, it indicates that the humidity inside the inner drum after the fourth preset time is similar to the first humidity, and the clothes are determined not to have been removed. Alternatively, the system can determine whether the clothes inside the inner drum have been removed based on the voltage level of the drum door. If the voltage level of the drum door is less than or equal to a voltage threshold, it indicates that the drum door is open, and the clothes are determined to have been removed. If the voltage level of the drum door is greater than the threshold voltage and the duration is greater than or equal to the preset time, it indicates that the drum door remains closed, and in this case, it is determined that the clothes have not been removed. This control method accurately determines whether the clothes inside the drum have been removed after the spin-drying cycle ends. Based on this determination, the rotation of the drum and the operation of the photo-plasma fresh air system can be more accurately controlled. This effectively prevents odors from developing on clothes if they are not removed in time, while also avoiding energy waste caused by controlling the drum rotation and the photo-plasma fresh air system when clothes have already been removed. Attached Figure Description

[0022] The control method of the clothing management device of the present invention is described below using a drum washing machine as an example and in conjunction with the accompanying drawings. In the accompanying drawings:

[0023] Figure 1 This is a structural diagram (I) of a photo-plasma fresh air device according to an embodiment of the present invention;

[0024] Figure 2 This is a structural diagram (II) of a photo-plasma fresh air device according to an embodiment of the present invention;

[0025] Figure 3 This is a structural diagram (a) of a drum washing machine equipped with a photo-plasma fresh air device according to an embodiment of the present invention;

[0026] Figure 4 This is a structural diagram (II) of a drum washing machine equipped with a photo-plasma fresh air device according to an embodiment of the present invention;

[0027] Figure 5 This is a general flowchart of a control method for a drum washing machine according to an embodiment of the present invention;

[0028] Figure 6 This is a control flowchart for determining the frequency of a photoplasma tube according to an embodiment of the present invention;

[0029] Figure 7 This is a control flowchart of an embodiment of the present invention, which determines whether clothes should be removed from the inner drum based on changes in the weight and humidity of the inner drum.

[0030] Figure 8 This is a control flowchart of an embodiment of the present invention, which further determines whether to remove clothing based on the humidity inside the inner drum when the second difference is less than or equal to the weight threshold.

[0031] Figure 9 This is a control flowchart of an embodiment of the present invention, which determines whether clothing should be removed based on the voltage level of the door.

[0032] List of reference numerals in the attached diagram:

[0033] 1. Outer shell; 2. Inner cylinder; 3. Outer cylinder; 4. Photoplasma fresh air device; 41. Shell; 411. Air inlet; 412. Air outlet; 4121. Air outlet duct; 42. Photoplasma tube; 43. Fan; 44. Mounting base; 45. Waterproof and breathable membrane; 46. Valve; 47. Control module. Detailed Implementation

[0034] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Although this application uses a drum washing machine with a photo-plasma fresh air device as an example, it is obviously also applicable to other types of clothing handling equipment such as pulsator washing machines and washer-dryer combos.

[0035] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, it should be noted that in the description of this application, unless otherwise explicitly specified and limited, the terms "connected" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] To remove bacteria and viruses from clothing, drum washing machines typically use methods such as ultraviolet (UV) irradiation, ozone, and silver ions for sterilization. However, UV irradiation sterilization usually only sterilizes clothing exposed to UV light, resulting in limited effectiveness. Ozone sterilization is more effective, but ozone is harmful to humans. Silver ion sterilization requires contact with clothing to achieve sterilization, also limiting its effectiveness. Therefore, this invention provides a control method for a clothing treatment device. After the spin-drying cycle is complete and the clothes are not removed, the inner drum is rotated, and a photo-plasma fresh air device is activated. This allows the gas containing ionized substances generated by the photo-plasma fresh air device to disinfect the inner drum and the clothes inside. The rotation of the inner drum agitates the clothes, achieving better sterilization and preventing odors from developing.

[0037] First, refer to Figures 1 to 4 This paper will describe possible implementations of the clothing management device of the present invention.

[0038] like Figures 1 to 4 As shown, a drum washing machine includes a casing 1, an inner drum 2 disposed within the casing 1, and an outer drum 3 disposed outside the inner drum 2. The inner drum 2 is rotatable relative to the outer drum 3. Clothes to be washed are placed into the inner drum 2, and the drum washing machine is started to wash the clothes. It should be noted that a drum washing machine may also not include the outer drum 3.

[0039] The photo-plasma fresh air device 4 includes a housing 41, a photo-plasma tube 42, and a fan 43. The photo-plasma tube 42 is configured as a U-shaped tube, and the fan 43 is an axial flow fan. Both the photo-plasma tube 42 and the fan 43 are housed inside the housing 41, which isolates them from the external environment. This prevents dust from accumulating on the photo-plasma tube 42 and the fan 43, affecting their air ionization efficiency, and prevents moisture from causing the photo-plasma tube 42 and the fan 43 to become damp or even short-circuit, thus ensuring the stable operation of the photo-plasma fresh air device 4. The housing 41 has a roughly rectangular cross-section and has an air inlet 411 and an air outlet 412. The air inlet 411 is connected to the environment. An air outlet duct 4121 is provided at the air outlet 412, with one end connected to the air outlet 412 and the other end connected to the outer cylinder 3, thus achieving interconnection between the air outlet 412 and the outer cylinder 3. The inner cylinder 2 is provided with multiple water passage holes, meaning that the outer cylinder 3 and the inner cylinder 2 are connected, thus enabling the air outlet 412 to be connected to the inner cylinder 2. An air duct is formed between the air inlet 411 and the air outlet 412. At least a portion of the photoplasma tube 42 is located within the air duct. The photoplasma tube 42 is configured to ionize air when energized, thereby generating a gas containing ionized substances. The fan 43 is configured to introduce ambient air into the housing 41 through the air inlet 411 and send the gas ionized by the photoplasma tube 42 out through the air outlet 412.

[0040] With this configuration, under the action of fan 43, ambient air enters the housing 41 through air inlet 411. When energized, the photoplasma tube 42 inside the housing 41 decomposes pure oxygen and water in the air into hydroxyl, free oxygen atoms, and superoxide ions, forming ionic substances. The gas containing these ionic substances then enters the inner drum 2 through air outlet 412. These ionic substances can decompose volatile organic compounds and other harmful substances into carbon dioxide and water, and can also destroy bacterial cell membranes, thus achieving antibacterial effects. In this way, the ionic substances in the gas can disinfect bacteria and viruses in the outer drum 3, inner drum 2, and on the laundry inside. In other words, this application's photoplasma fresh air device 4 can effectively remove bacteria and viruses from the outer drum 3, inner drum 2, and the laundry inside, achieving a good sterilization effect. Simultaneously, the gas introduced into the inner cylinder 2 by the fan also causes the original air inside the inner cylinder 2 to be expelled, thereby enhancing the airflow inside the inner cylinder and achieving the purpose of deodorizing, preventing the growth of mold and bacteria, thus effectively improving the user experience. Obviously, the cross-section of the shell 41 can also be set to other possible shapes such as ellipse, square, hexagon.

[0041] It should be noted that the photoplasma tube 42 can also be configured as a strip tube, a W-shaped tube, or other possible forms. Without departing from the principle of this application, those skilled in the art can flexibly choose the specific configuration of the photoplasma tube 42 according to the specific application scenario, as long as the photoplasma tube 42 can ionize the air to generate a gas containing ionized substances when energized.

[0042] It should be noted that the fan 43 can also be a cross-flow fan, a centrifugal fan or other possible types. Without departing from the principle of this application, those skilled in the art can flexibly choose the specific type of fan 43 according to the specific application scenario, as long as the fan 43 can introduce air from the environment into the housing 41 through the air inlet 411 and send the gas ionized by the photoplasma tube 42 out through the air outlet 412.

[0043] It should be noted that the photo-plasma fresh air device 4 may also exclude the fan 43. Ambient air can enter the housing 41 through the air inlet 411, be ionized by the photo-plasma tube 42 to produce ionized substances, and then enter the inner cylinder 2 through the air outlet 412. In this case, if the inner cylinder 2 rotates, it increases the air turbulence inside the outer shell 1 and can create a local negative pressure inside the outer cylinder 3. Under the action of this negative pressure, the gas containing ionized substances in the housing 41 can be drawn into the space between the outer cylinder 3 and the inner cylinder 2, thereby also causing ambient air to enter the housing 41 through the air inlet 411.

[0044] It should be noted that the air inlet 411 can be directly connected to the space between the outer drum 3 and the outer shell 1. When the photo-plasma fresh air device 4 is running, the air in the space between the outer drum 3 and the outer shell 1 enters the shell 41 through the air inlet 411, is ionized by the photo-plasma tube 42, and then enters the inner drum 2. Alternatively, an air inlet pipe can be provided at the air inlet 411. In this case, a vent is provided on the outer shell 1, and the end of the air inlet pipe away from the shell 41 is connected to the vent on the outer shell 1, thus enabling the air inlet 411 to communicate with the environment. Obviously, when a circulating air duct is provided inside the drum washing machine, the end of the air inlet pipe away from the shell 41 can also be connected to the circulating air duct. Without departing from the principles of this application, those skilled in the art can flexibly choose the specific arrangement of the air inlet 411 communicating with the environment, as long as air from the environment can enter the shell 41 through the air inlet 411.

[0045] In one possible implementation, the photoplasma tube 42 of this application can emit ultraviolet light with a wavelength of 170-190nm when energized. Under the action of ultraviolet light of this wavelength, it can ionize the air to produce more ionized substances. Thus, the gas containing ionized substances obtained after ionization by the photoplasma tube 42 can remove more bacteria, viruses, etc., thereby achieving a better sterilization effect.

[0046] Obviously, the photoplasma tube 42 can also emit ultraviolet light of other wavelengths when it is powered on. Compared with ultraviolet light with wavelengths of 170-190nm, the amount of ionized substances produced by ionizing the air is reduced when the photoplasma tube 42 emits ultraviolet light of other wavelengths, but a certain sterilization effect can still be achieved.

[0047] like Figure 1 As shown, the air inlet 411 and the air outlet 412 are respectively located on opposite sides of the housing 41 (i.e., Figure 1 (As shown in the diagram, the housing 41 has left and right sides). Under the action of the fan 43, ambient air enters the housing 41 through the right-side air inlet 411 and is then discharged from the left-side air outlet 412. Inside the housing 41, near the air inlet 411, a mounting base 44 is provided. The photoplasma tube 42 and the fan 43 are respectively mounted on this mounting base 44 along the airflow direction (i.e.,...). Figure 1 On both sides (left and right directions) of the optical plasma tube 42 when assembled. Figure 1 Extending left and right in the middle, the fan 43 is aligned with the air inlet 411, thus positioning the fan 43 upstream of the photoplasma tube 42 along the airflow direction and close to the air inlet 411. Under the action of the fan 43, ambient air enters the housing 41 through the air inlet 411 and is blown towards the photoplasma tube 42 by the fan 43. This ensures that the air can come into contact with the photoplasma tube 42 throughout its entire flow path within the housing 41, allowing for more thorough contact and ionization to generate more ionized substances, thereby achieving a better sterilization effect.

[0048] It should be noted that the air inlet 411 and air outlet 412 can also be arranged on the housing 41 in other ways. Specifically, as shown below... Figure 2 As shown, according to Figure 2As shown, the air inlet 411 is located on the right side of the housing 41, and the air outlet 412 is located on the upper side of the housing 41, meaning the air inlet 411 and air outlet 412 are respectively located on adjacent sides of the housing 41. The air outlet 412 is located near the end of the photoplasma tube 42 furthest from the mounting base 44. Thus, after ambient air enters the housing 41 through the air inlet 411 on the right side, it is blown towards the photoplasma tube 42 by the fan 43, comes into contact with and is ionized by the photoplasma tube 42, and is then discharged through the upper air outlet 412. This forms a roughly L-shaped airflow channel within the housing 41. Because the air outlet 412 is located near the left side of the housing 41, it can also promptly discharge gases containing ionized substances from the housing 41. Alternatively, the air inlet 411 could be located on the right side of the housing 41, and the air outlet on the lower side of the housing 41, etc. Without departing from the principles of this application, those skilled in the art can flexibly choose the specific placement of the air inlet 411 and the air outlet 412 on the housing 41 according to the specific application scenario, as long as the air in the environment can enter the housing 41 through the air inlet 411 and the ionized air can be discharged through the air outlet 412.

[0049] like Figure 1 and Figure 3 As shown, the photo-plasma fresh air device 4 also includes a waterproof and breathable component, which is a waterproof and breathable membrane 45. This membrane 45 is configured to allow only gas to pass through. In this application, the waterproof and breathable membrane 45 can be installed at the air outlet 412 by means of bonding, screwing, or snapping. The waterproof and breathable membrane 45 is a novel polymer waterproof material, mainly composed of three layers: PP spunbond nonwoven fabric, PE polymer breathable membrane, and PP spunbond nonwoven fabric. The waterproof and breathable membrane 45 achieves the purpose of preventing water from passing through through the following principle: In the state of water vapor, water particles are very small. According to the principle of capillary motion, they can easily penetrate into the capillary to the other side, thus causing vapor permeation. When water vapor condenses into water droplets, the particles become larger. Due to the surface tension of the water droplets (the mutual "pulling and resistance" between water molecules), the water molecules cannot easily detach from the water droplets and penetrate to the other side, thus preventing water penetration and giving the breathable membrane a waterproof function.

[0050] In this way, when the photo-plasma fresh air device 4 is running, ambient air enters the housing 41 through the air inlet 411, is ionized by the photo-plasma tube 42, then passes through the waterproof and breathable membrane 45, and finally enters the inner drum 2 through the air outlet 4121. Even if the drum washing machine is in the process of washing and a lot of washing water splashes up, the waterproof and breathable membrane 45 will prevent the washing water in the outer drum 3 from entering the housing 41 through the air outlet 412, thus ensuring the stable operation of the photo-plasma fresh air device 4.

[0051] It should be noted that the waterproof and breathable component can also be valve 46, for example, valve 46 can be a solenoid valve, etc. Specifically, as shown below... Figure 2 and Figure 4 As shown, valve 46 is installed on the air outlet pipe 4121. When the photo-plasma fresh air device 4 is running, valve 46 is opened; when the photo-plasma fresh air device 4 is not running, valve 46 is closed. This also prevents washing water from entering the housing 41, ensuring the stable operation of the photo-plasma fresh air device 4. Of course, when the waterproof and breathable component is valve 46, the air outlet 412 may not require an air outlet pipe 4121; the valve 46 can be directly snapped onto the air outlet 412. In this case, valve 46 can be a threaded waterproof and breathable valve, a snap-on waterproof and breathable valve, a twist-lock waterproof and breathable valve, a plug-type waterproof and breathable valve, or other possible types. Without departing from the principles of this application, those skilled in the art can flexibly choose the specific configuration of the waterproof and breathable component according to the specific application scenario, as long as it only allows gas to pass through.

[0052] It is understandable that the photo-plasma fresh air device 4 may not include waterproof and breathable components. In this case, in order to avoid the washing water from affecting the photo-plasma fresh air device 4, the photo-plasma fresh air device 4 can be set on the top side or near the top side of the outer wall of the outer cylinder 3 or at other positions higher than the washing water level.

[0053] like Figure 1 and Figure 2 As shown, the photo-plasma fresh air device 4 also includes a control module 47. This control module 47 controls the rotation of the inner drum 2 and the operation of the photo-plasma fresh air device 4 when the clothes are not removed. The control module 47 can also determine whether the clothes in the inner drum 2 have been removed based on changes in the weight of the inner drum 2, changes in the weight and humidity inside the inner drum 2, or the voltage level of the drum door.

[0054] It should be noted that the photo-plasma fresh air device 4 may not require a separate control module, but can achieve the above control functions through the control chip of the drum washing machine itself, or a functional module or functional unit of a general controller.

[0055] It should be noted that when the waterproof and breathable component is valve 46, in this case, valve 46 is connected to control module 47, and control module 47 is configured to control the opening and closing of valve 46.

[0056] The following reference Figure 3 and Figure 4 This paper describes a possible implementation of the photo-plasma fresh air device 4 of this application on a drum washing machine.

[0057] like Figure 3 and Figure 4 As shown, a through hole (not shown) is provided on the upper side of the outer drum 3. One end of the air outlet pipe 4121 is connected to the air outlet 412 of the photo-plasma fresh air device 4, and the other end is connected to the through hole, thus placing the photo-plasma fresh air device 4 above the outer drum 3. When the drum washing machine is running, the photo-plasma fresh air device 4 is turned on. The gas containing ionized substances generated by the photo-plasma fresh air device 4 enters the outer drum 3 through the air outlet 412 and then enters the inner drum 2, sterilizing the drum washing machine and the clothes to be washed in the inner drum 2, and causing the original air in the inner drum 2 to be expelled, thereby achieving a better sterilization and deodorization effect.

[0058] It should be noted that the photo-plasma fresh air device 4 can also be located below the outer drum 3. In this case, to prevent washing water in the outer drum 3 from entering the housing 41, the waterproof and breathable component is set as a valve 46. When the drum washing machine is running and there is water in the outer drum 3, the valve 46 is closed. When the drum washing machine is not running or there is no water in the outer drum 3, the valve 46 can be opened, and the photo-plasma fresh air device 4 can be used to sterilize and deodorize the drum washing machine. Of course, the photo-plasma fresh air device 4 can also be located near or below the outer drum 3. Without departing from the principle of this application, those skilled in the art can flexibly choose the specific placement of the photo-plasma fresh air device 4 inside the housing 1 according to the specific application scenario, as long as it can sterilize the drum washing machine.

[0059] The drum washing machine includes a control panel (not shown), which has indicator lights that are configured to display the operating status of the photo-plasma fresh air device 4. Specifically, a yellow indicator light indicates that the photo-plasma fresh air device 4 is in normal operation, a green indicator light indicates that the photo-plasma fresh air device 4 has completed its operation, and a red indicator light indicates that the photo-plasma fresh air device 4 is in an abnormal operating state.

[0060] It should be noted that the different colored indicator lights indicating the operating status of the photoplasma fresh air device 4 are merely illustrative examples. They can obviously represent other operating states as well. For instance, a red indicator light indicates that the photoplasma fresh air device 4 is in normal operation; a green indicator light indicates that the photoplasma fresh air device 4 has completed operation; and a yellow indicator light indicates that the photoplasma fresh air device 4 is in an abnormal operating state. Without departing from the principles of this application, those skilled in the art can flexibly choose the specific implementation method for the indicator lights to display the operating status of the photoplasma fresh air device 4 according to the specific application scenario, as long as the operating status of the photoplasma fresh air device 4 can be displayed through the indicator lights.

[0061] In this application, the drum washing machine is equipped with a weighing module, through which the weight of the inner drum can be obtained. It should be noted that the weighing module can be installed on the side wall of the inner drum, or at the bottom of the inner drum, or at other possible locations.

[0062] It should be noted that the weighing module can be, but is not limited to, strain gauge load cells, photoelectric load cells, or capacitive load cells.

[0063] In this application, the drum washing machine is also equipped with a humidity detection module, which can obtain the humidity inside the inner drum.

[0064] It should be noted that the humidity detection module can be installed inside the drum of a front-loading washing machine, near its lower side. This way, when clothes are present in the drum, the humidity detected by the module is the humidity of the clothes inside; when no clothes are present, the humidity detected is the humidity of the air inside the drum. Alternatively, the humidity detection module can be installed on the door seal or at other locations where it can detect the humidity inside the drum. Without departing from the principles of this application, those skilled in the art can flexibly choose the specific location of the humidity detection module according to the specific application scenario, as long as it can detect the humidity of the clothes when there are clothes in the drum and the humidity of the air inside the drum when there are no clothes.

[0065] It should be noted that the humidity detection module can be, but is not limited to, a humidity sensor, a hygrometer, etc.

[0066] In this application, a drum washing machine has a drum door on its outer casing, which can be opened or closed relative to the outer casing.

[0067] The drum washing machine is equipped with a detection circuit, which includes a detection mechanism, such as a microswitch or reed switch. This detection circuit is configured to output different voltage levels depending on the opening and closing state of the drum door. In this application, the detection circuit outputs a higher voltage level when the drum door is closed and a lower voltage level when the drum door is open.

[0068] The following reference Figures 5 to 9 This paper describes possible implementations of the control method for the garment processing equipment of the present invention.

[0069] like Figure 5 As shown, in one possible implementation, the control method of the present invention includes:

[0070] S100: After the spin-drying program is completed, determine whether the clothes in the inner drum should be removed;

[0071] S101: If the clothes are not removed, control the inner drum to rotate and control the operation of the photo-plasma fresh air device.

[0072] In the S100, after the clothes have been washed and spun dry, it determines whether the user has taken the clothes out of the inner drum.

[0073] In step S101, based on the judgment result in step S100, if the judgment result in step S100 is that the clothes have not been removed, then the inner drum is controlled to rotate, and the photo-plasma fresh air device is controlled to operate. After the inner drum is controlled to rotate, a negative pressure is formed at the air outlet. Under the action of this negative pressure, the ambient air can more easily enter the shell through the air inlet. Then, the photo-plasma fresh air device ionizes and generates a gas containing ionized substances, which then enters the inner drum through the air outlet to disinfect the outer drum, the inner drum, and the clothes located in the inner drum. At the same time, the rotation of the inner drum disturbs the clothes, shakes them apart, and allows the clothes to better contact with the gas containing ionized substances, thereby achieving a better sterilization effect.

[0074] This control method achieves a good sterilization effect, and even if the clothes are not taken out in time after washing, they will not have an odor, thus effectively improving the user experience.

[0075] In one possible implementation, the photoplasma fresh air device also includes a fan, which draws ambient air into the housing through an air inlet and expels gas ionized by the photoplasma tube through an air outlet. In this case, the steps for controlling the operation of the photoplasma fresh air device specifically include: controlling the photoplasma tube to operate at a preset frequency and controlling the fan to operate at a preset fan speed. Thus, when it is determined that clothing has not been removed, both the photoplasma tube and the fan are simultaneously controlled. Under the action of the fan, more air can be drawn into the housing of the photoplasma fresh air device, thereby generating more gas containing ionized substances, which is then sent into the inner drum. This disinfects the outer drum, the inner drum, and the clothing located within the inner drum, promoting airflow within the inner drum, thereby better preventing odors from developing in the clothing and improving the user experience.

[0076] It should be noted that in this application, the fan speed can be a fixed value or it can increase with the frequency of the photoplasma tube. Alternatively, the fan can operate at a lower speed when the weight of the clothes inside the drum is less than a certain amount, and at a higher speed when the weight of the clothes is greater than that amount. For example, the fan can operate at 450 r / min when the weight of the clothes inside the drum is less than 3 kg, and at 860 r / min when the weight of the clothes inside the drum is greater than 3 kg, and so on. Without departing from the principles of this application, those skilled in the art can flexibly determine the specific fan speed according to the specific application scenario, as long as a good sterilization effect and prevention of odors from the clothes are achieved.

[0077] It should be noted that the photo-plasma fresh air device of this application may also exclude the fan. In this case, the steps for controlling the operation of the photo-plasma fresh air device specifically include: controlling the photo-plasma tube to operate at a preset frequency. Without departing from the principles of this application, those skilled in the art can flexibly choose the specific configuration of the photo-plasma fresh air device according to the specific application scenario, as long as a good sterilization effect can be obtained.

[0078] The following reference Figure 6 This invention will explain a possible method for determining the frequency of the photoplasma tube.

[0079] like Figure 6 As shown, in one possible implementation, the control method of the present invention further includes:

[0080] S200: Obtain the initial weight of the inner cylinder;

[0081] S201: When it is determined that the clothes have not been removed, obtain the first weight of the inner drum;

[0082] S202: Calculate the first difference between the first weight and the initial weight;

[0083] S203: Determine the frequency of the photoplasma tube based on the first difference.

[0084] In S200, the initial weight of the inner cylinder is obtained through the aforementioned weighing module.

[0085] It should be noted that the initial weight of the inner drum refers to its weight when there are no clothes or wash water inside. When the original parameters of a front-loading washing machine include the weight value of the inner drum, this weight value can be directly used as the initial weight of the inner drum.

[0086] In S201, when it is determined in step S100 that the clothes inside the inner drum have not been removed, the first weight of the inner drum is obtained through the weighing module.

[0087] In S202, based on the initial weight and first weight obtained in S200 and S201, the first difference between the first weight and the initial weight is calculated, and the first difference is the weight of the inner tube underwear.

[0088] In S203, the frequency of the photoplasma tube is determined based on the first difference calculated in S202.

[0089] It should be noted that a frequency database for photoplasma tubes can be pre-built, storing the frequencies of photoplasma tubes corresponding to different clothing weights. After calculating the first difference in S203, this first difference is matched with the clothing weights in the frequency database, and the frequency of the photoplasma tube corresponding to the matched clothing weight is determined as the current frequency of the photoplasma tube. Alternatively, a lookup table can be pre-built, where clothing weights and photoplasma tube frequencies correspond one-to-one. After calculating the first difference in S203, this first difference is compared with the clothing weights in the frequency database, and the frequency of the photoplasma tube corresponding to the same or similar clothing weight is determined as the current frequency of the photoplasma tube. Of course, it is also possible to control the photoplasma tube to operate at a fixed lower frequency when the first difference is less than or equal to a certain threshold, and to operate at a fixed higher frequency when the first difference is greater than the threshold. For example, when the first difference is less than 5 kg, the photoplasma tube is controlled to operate at a frequency of 3 W; when the first difference is greater than 5 kg, the photoplasma tube is controlled to operate at a frequency of 8 W, and so on. Without departing from the principles of this application, those skilled in the art can flexibly determine the specific method for determining the frequency of the photoplasma tube based on the first difference according to the specific application scenario, as long as a good sterilization effect and prevention of odor from clothes can be achieved.

[0090] The frequency of the photoplasma tube is determined based on the actual weight of the clothes inside the inner drum through the above control method. The frequency of the photoplasma tube is related to the amount of ionized matter it can generate. The higher the frequency of the photoplasma tube, the more ionized matter it can generate. This allows for better disinfection of clothes, better sterilization, better prevention of odors, and improved user experience.

[0091] In one possible implementation, the frequency of the photoplasma tube increases with the increase of a first difference, which is the weight of the clothing inside the inner drum. In other words, the frequency of the photoplasma tube increases with the weight of the clothing inside the inner drum. Specifically, when the clothing is heavy, such as 8 kg, the photoplasma tube is controlled to operate at a higher frequency, such as a power of 8 W. This allows for the ionization of a larger quantity of ionized matter, which is then introduced into the inner drum to thoroughly disinfect the outer drum, inner drum, and clothing. When the clothing is light, such as 3 kg, the photoplasma tube is controlled to operate at a lower frequency, such as a power of 3 W. This still allows for the ionization of a certain quantity of ionized matter, which is then introduced into the inner drum, thus meeting the disinfection requirements. By adjusting the amount of ionic substances delivered into the inner drum according to the weight of the clothes, the system can save energy while ensuring sterilization and preventing odors from forming on the clothes, thus improving the user experience.

[0092] In one possible implementation, the step of "controlling the inner drum rotation" specifically includes: controlling the inner drum to rotate alternately in both forward and reverse directions at a preset inner drum rotation speed. In this way, by controlling the inner drum to rotate alternately in both forward and reverse directions, the clothes can be more agitated and shaken out, allowing the clothes to come into more full contact with the gas containing ionized substances, thereby achieving a better sterilization effect.

[0093] It should be noted that it is also possible to control only the inner drum to rotate forward or backward. Without deviating from the principle of this application, those skilled in the art can flexibly determine the specific rotation mode of the inner drum according to the specific application scenario, as long as it can disturb the clothes and make the clothes fully contact the gas containing ionized substances.

[0094] In one possible implementation, after the photo-plasma fresh air device has been running for a first preset time, indicating that it has been operating for some time and bacteria and viruses on the inner drum and clothing have been effectively eliminated, the device is then stopped. After the inner drum rotates alternately in both forward and reverse directions at a preset speed for a second preset time, the clothing inside has been completely shaken out, allowing for sufficient contact with the gas containing ionized substances. At this point, the inner drum stops rotating. This control method achieves good sterilization while saving energy.

[0095] It should be noted that the first preset duration and the second preset duration mentioned above can be different or the same.

[0096] It should be noted that the photo-plasma fresh air device can also be stopped only after operating for a first preset time, or the inner drum can be stopped only after rotating alternately forward and backward at a preset speed for a second preset time. Alternatively, the photo-plasma fresh air device can be kept running for the first preset time, and the inner drum can be kept running alternately forward and backward at a preset speed for the second preset time, i.e., the photo-plasma fresh air device and the inner drum can be continuously operated until the user removes the clothes, at which point both the photo-plasma fresh air device and the inner drum can be stopped. Without departing from the principles of this application, those skilled in the art can flexibly determine the operating time of the photo-plasma fresh air device and the inner drum according to the specific application scenario, as long as a good sterilization effect can be achieved.

[0097] The following is combined Figures 7 to 9 This paper describes a possible implementation of the control method for determining whether clothes in the inner drum have been removed after the spin-drying process has finished running.

[0098] like Figure 7 As shown, in one possible implementation, the control method of the present invention further includes:

[0099] S300: After the spin-drying process is completed, obtain the second weight of the inner drum;

[0100] S301: After obtaining the second weight and the third preset time, obtain the third weight of the inner cylinder;

[0101] S302: Calculate the second difference between the second weight and the third weight;

[0102] S303: Determine whether the second difference is greater than the weight threshold. If yes, proceed to S304; otherwise, proceed to S305.

[0103] S304: It has been determined that the clothing has been removed;

[0104] S305: Further determine whether the clothes should be taken out based on the humidity inside the inner drum.

[0105] In S300, after the spin-drying process is completed, the second weight of the inner cylinder is obtained through the aforementioned weighing module.

[0106] In S301, after obtaining the second weight of the inner cylinder and the third preset time in S300, for example, the third preset time is 2 hours, that is, after obtaining the second weight for 2 hours, the third weight of the inner cylinder is obtained through the weighing module mentioned above.

[0107] In S302, based on the second weight and the third weight obtained in S300 and S301, the second difference between the second weight and the third weight is calculated.

[0108] In S303, based on the second difference calculated in S302, it is determined whether the second difference is greater than the weight threshold. If the second difference is greater than the weight threshold, for example, the second difference is 4 kg and the weight threshold is 0.5 kg, it indicates that the weight of the inner drum has decreased significantly after the third preset time. At this point, it is determined that the clothes have been removed, and S304 is executed.

[0109] If the second difference is less than or equal to the weight threshold, for example, if the second difference is 0.3 kg and the weight threshold is 0.5 kg, it indicates that the weight reduction of the inner drum after the third preset time is small. In this case, the determination of whether to remove the clothes is further based on the humidity inside the inner drum, i.e., S305 is executed.

[0110] It should be noted that when the second difference is less than or equal to the weight threshold, since the weight change of the inner drum is small, the second difference can be considered to be caused by the evaporation of moisture on the clothes or weighing errors, etc., and at this time it can be directly determined that the clothes have not been taken out.

[0111] Through the above control method, it is possible to more accurately determine whether the clothes in the inner drum have been removed, and thus better control the operation of the photo-plasma fresh air device and the inner drum.

[0112] like Figure 8 As shown, in one possible implementation, S305 further includes:

[0113] S400: When the second difference is less than or equal to the weight threshold, obtain the first humidity inside the inner cylinder;

[0114] S401: After obtaining the first humidity for a fourth preset time, obtain the second humidity inside the inner cylinder;

[0115] S402: Calculate the third difference between the first humidity and the second humidity;

[0116] S403: Determine whether the third difference is greater than the humidity threshold. If yes, proceed to S404; otherwise, proceed to S405.

[0117] S404: It has been determined that the clothing has been removed;

[0118] S405: It has been determined that the clothing was not removed.

[0119] In S400, when it is determined in S303 that the second difference is less than or equal to the weight threshold, the first humidity inside the inner cylinder is obtained by the humidity detection device.

[0120] In S401, after obtaining the first humidity for a fourth preset time, for example, the fourth preset time is 2 hours, that is, after obtaining the first humidity for 2 hours, the second humidity inside the inner cylinder is obtained through the humidity detection device.

[0121] In S402, based on the first humidity and the second humidity obtained in S400 and S401, a third difference between the first humidity and the second humidity is calculated.

[0122] In S403, based on the third difference calculated in S402, it is determined whether the third difference is greater than the humidity threshold. If the third difference is greater than the humidity threshold, it means that the humidity in the inner drum after the fourth preset time period differs significantly from the first humidity. This may be because the user has put in new clothes to be washed, and the weight of the new clothes is similar to the weight of the clothes that were spun dry last time, causing the second difference to be less than or equal to the weight threshold. This means that the clothes that were spun dry last time have been removed, and the clothes in the inner drum at this time are new clothes to be washed. Therefore, it is determined that the clothes have been removed, and S404 is executed.

[0123] If the third difference is less than or equal to the humidity threshold, it means that the humidity inside the inner drum after the fourth preset time is similar to the first humidity. The second difference may be caused by the evaporation of moisture on the clothes inside the inner drum or measurement error. In this case, it is determined that the clothes have not been taken out, and S405 is executed.

[0124] By taking into account the weight changes and humidity changes of the inner drum, the system can more accurately determine whether the clothes inside the inner drum have been removed, thereby enabling better control of the operation of the photo-plasma fresh air device and the inner drum.

[0125] It should be noted that the specific values ​​of the third and fourth preset durations mentioned above are merely illustrative descriptions. Those skilled in the art can flexibly select the specific values ​​of the third and fourth preset durations according to the specific application scenario. Obviously, the values ​​of the two can be different or the same, as long as it can accurately determine whether the clothes in the inner drum have been taken out.

[0126] like Figure 9 As shown, in another possible embodiment, the control method of the present invention further includes:

[0127] S500: After the spin-drying program is completed, obtain the voltage level of the drum door;

[0128] S501: Determine whether the level value is less than or equal to the level threshold. If yes, execute S502; otherwise, execute S503.

[0129] S502: It has been determined that the clothing has been removed;

[0130] S503: Obtain the duration for which the level value is greater than the level threshold;

[0131] S504: Determine whether the duration is greater than or equal to the preset time. If yes, execute S506; otherwise, execute S505.

[0132] S505: It has been determined that the clothing has been removed;

[0133] S506: It is determined that the clothing was not removed.

[0134] In S500, the voltage level of the drum door is acquired after the spin-drying program has finished running;

[0135] In S501, based on the voltage level of the door obtained in S500, it is determined whether the voltage level is less than or equal to the voltage level threshold. If the voltage level is less than or equal to the voltage level threshold, it means that the door is currently in the open state. At this time, it is determined that the clothes have been taken out, and S502 is executed.

[0136] If the voltage level is greater than the voltage threshold, it means that the gate is currently in a closed state. However, it is not yet possible to determine whether it has been opened and closed or has always been in a closed state. In this case, the duration for which the voltage level is greater than the voltage threshold is obtained, i.e., S503 is executed.

[0137] In S504, based on the duration obtained in S503, it is determined whether the duration is greater than or equal to the preset time. If the duration is greater than or equal to the preset time, for example, the duration is 2.5 hours and the preset time is 2 hours, it means that the door has been closed, which means that the user has not opened the door to take out the clothes. At this time, it can be determined that the clothes have not been taken out, and S506 is executed.

[0138] If the duration is less than the preset time, for example, the duration is 0.5 hours and the preset time is 2 hours, it means that the door was opened and then closed before, which means that the user opened the door to take out the clothes and then closed the door. In this case, it can be determined that the clothes have been taken out, and S505 is executed.

[0139] By using the above control method, based on the voltage level of the valve and the duration of the voltage level being greater than the voltage threshold, it is possible to more accurately determine whether the clothes inside the inner drum have been removed, thereby enabling better control of the operation of the photo-plasma fresh air device and the inner drum.

[0140] In summary, in the preferred embodiment of the present invention, after the spin-drying program is completed, it is determined whether the clothes inside the inner drum have been removed. If the clothes have not been removed, the inner drum is rotated, and the photo-plasma fresh air device is activated. Thus, when clothes are not removed promptly after washing, the rotation of the inner drum and the operation of the photo-plasma fresh air device allow for the disinfection of the clothes using gas containing ionized substances. Furthermore, the rotation of the inner drum agitates the clothes, resulting in a better sterilization effect, effectively preventing odors and improving the user experience. By determining the frequency of the photo-plasma tube based on the weight of the clothes inside the inner drum, energy conservation is achieved while ensuring a good sterilization effect. Alternating forward and reverse rotation of the inner drum better agitates the clothes, resulting in a better sterilization effect. By stopping the photo-plasma fresh air device after a first preset time and stopping the inner drum rotation after a second preset time, energy conservation is achieved while ensuring a sterilization effect. By determining whether clothes have been removed from the inner drum based on changes in the weight and humidity within the drum, as well as the voltage level of the drum door, the system can more accurately determine whether clothes have been removed. This allows for better control of the operation of the photo-plasma fresh air system and the inner drum, resulting in better sterilization and improved user experience.

[0141] Although the steps in the above embodiments are described in the above order, those skilled in the art will understand that in order to achieve the effect of this embodiment, different steps do not need to be executed in such order. They can be executed simultaneously (in parallel) or in reverse order. These simple changes are all within the protection scope of this application.

[0142] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A control method for a garment processing device, characterized in that, The garment processing equipment includes a housing, an outer cylinder and an inner cylinder disposed within the housing, and is equipped with a photoplasma fresh air device. The photoplasma fresh air device is located above or below the outer cylinder and includes a housing and a photoplasma tube disposed within the housing. The housing has an air inlet and an air outlet. The air inlet is in communication with the environment, and the air outlet is in communication with the inner cylinder. An air duct is formed between the air inlet and the air outlet. At least a portion of the photoplasma tube is located within the air duct. The photoplasma tube is configured to ionize air when energized, thereby generating a gas containing ionized substances. The photoplasma fresh air device also includes a fan disposed within the housing. The fan is configured to draw air from the environment into the housing through the air inlet and expel the gas ionized by the photoplasma tube through the air outlet. The control method includes: After the spin-drying process is completed, determine whether the clothes in the inner drum have been removed; If the clothing is not removed, the inner drum is rotated and the photo-plasma fresh air device is operated. The step of "controlling the operation of the photo-plasma fresh air device" further includes: Control the photoplasma tube to operate at a preset frequency and control the fan to operate at a preset fan speed; The frequency of the photoplasma tube is determined based on the weight of the inner tube fabric.

2. The control method according to claim 1, characterized in that, The frequency of the photoplasma tube is determined through the following steps: Obtain the initial weight of the inner cylinder; When it is determined that the clothing has not been removed, the first weight of the inner tube is obtained; Calculate the first difference between the first weight and the initial weight; The frequency of the photoplasma tube is determined based on the first difference.

3. The control method according to claim 2, characterized in that, The control method further includes: The frequency of the photoplasma tube increases as the first difference increases.

4. The control method according to claim 1, characterized in that, The steps of "controlling the rotation of the inner cylinder" specifically include: The inner cylinder is controlled to rotate alternately in both forward and reverse directions at a preset inner cylinder speed.

5. The control method according to claim 4, characterized in that, The control method further includes: After controlling the photo-plasma fresh air device to operate for a first preset time, control the photo-plasma fresh air device to stop operating; and / or After controlling the inner cylinder to rotate alternately in both directions at a preset rotation speed for a second preset time, the inner cylinder is controlled to stop rotating.

6. The control method according to claim 1, characterized in that, The step of "determining whether the clothes inside the inner drum have been removed" further includes: After the spin-drying process is completed, the second weight of the inner cylinder is obtained; After obtaining the second weight and a third preset time, obtain the third weight of the inner cylinder; Calculate the second difference between the second weight and the third weight; Compare the second difference with the weight threshold. If the second difference is greater than the weight threshold, then the clothing is determined to have been removed.

7. The control method according to claim 6, characterized in that, The step of "determining whether the clothes inside the inner drum have been removed" further includes: If the second difference is less than or equal to the weight threshold, then the determination of whether the clothing should be removed is further based on the humidity inside the inner drum.

8. The control method according to claim 7, characterized in that, The step of "further determining whether the clothing should be removed based on the humidity inside the inner drum" further includes: Obtain the first humidity inside the inner cylinder; After obtaining the first humidity for a fourth preset time, obtain the second humidity inside the inner cylinder; Calculate the third difference between the first humidity and the second humidity; Compare the third difference with the humidity threshold. If the third difference is greater than the humidity threshold, then it is determined that the clothing has been removed; If the third difference is less than or equal to the humidity threshold, it is determined that the clothing has not been removed.

9. The control method according to claim 1, characterized in that, The outer casing is provided with a cylindrical door. The step of "determining whether the clothes inside the inner drum have been removed" further includes: After the spin-drying process is completed, the voltage level of the drum door is obtained; Compare the stated level value with the level threshold. If the voltage level is less than or equal to the voltage level threshold, it is determined that the clothing has been removed. If the voltage level is greater than the voltage threshold and the duration is greater than or equal to a preset time, it is determined that the clothing has not been removed.

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