Drying and sterilizing method, control device and clothing processing equipment

Abstract

The embodiments of the present application provide a drying and sterilization method, control device, and clothing processing equipment, relating to the technical field of clothing processing equipment. The drying and sterilization method includes: during the clothing drying process, controlling the heating device and air supply component to start operation, controlling the rotation of the clothing processing drum, and determining whether the timing for executing the sterilization program has arrived during the control of the rotation of the clothing processing drum; when the timing for executing the sterilization program has arrived, obtaining drying parameters and determining target sterilization parameters based on the drying parameters; entering the sterilization program, controlling the heating device and air supply component to stop operation, causing the clothing processing drum to rotate at a preset start-stop ratio, and injecting ozone into the clothing processing drum at the target sterilization parameters. This embodiment can prevent the high-temperature airflow from accelerating ozone consumption and prolonging the sterilization time, and prevent ozone from leaking into the external environment with the high-temperature airflow and contaminating the external environment.

Description

Technical Field

[0001] The present application relates to the technical field of clothing processing, and in particular to a drying and sterilization method, a control device and clothing processing equipment. Background Art

[0002] Currently, the drying temperature of clothes in clothing treatment equipment with drying function is generally 50-70℃, and the sterilization rate of Staphylococcus aureus is generally within 99.9%. However, mold and other fungi on clothes require higher temperatures to be removed. Therefore, simply sterilizing clothes with high-temperature airflow will have the problem of incomplete sterilization.

[0003] In the related art, thorough sterilization is achieved by introducing ozone into the clothing treatment drum during the clothing drying process. However, introducing ozone during the high-temperature air blowing process will cause the ozone to be consumed faster, which will extend the sterilization time. At the same time, ozone leakage is likely to occur, polluting the external environment. Summary of the Invention

[0004] The embodiments of the present application provide a drying and sterilization method, a control device, and a clothing processing device to at least solve the problem of large ozone consumption and high risk of ozone leakage caused by the introduction of ozone during the high-temperature air blowing process.

[0005] According to a first aspect of the embodiments of the present application, a drying and sterilizing method is provided for use in a clothing processing device, wherein the clothing processing device includes a heating device, an air supply component, and a clothing processing drum, and the drying and sterilizing method includes:

[0006] During the clothes drying process, controlling the heating device and the air supply component to start operation, controlling the clothes processing drum to rotate, and determining whether the execution time of the sterilization program has arrived during the process of controlling the rotation of the clothes processing drum;

[0007] When the execution time of the sterilization program is reached, a drying parameter is obtained, and a target sterilization parameter is determined according to the drying parameter;

[0008] Entering the sterilization program, controlling the heating device and the air supply component to stop running, and rotating the clothes processing drum at a preset rotation-stop ratio, and inputting ozone into the clothes processing drum according to the target sterilization parameters.

[0009] The drying and sterilization method of this embodiment controls the air supply component to stop operating when the sterilization process is ready. This prevents the high-temperature airflow from accelerating ozone consumption and prolonging the sterilization process, as well as ozone leakage into the external environment along with the high-temperature airflow, which could contaminate the environment. After the sterilization process is complete, the heating device and air supply component are activated again to ensure effective drying of the clothes. Controlling the heating device to stop operating during the sterilization process prevents damage to the heating device caused by prolonged operation when the air is not being blown.

[0010] In conjunction with the first aspect, in an optional implementation of the embodiment of the present application, the following method is used to determine whether the timing for executing the sterilization program has arrived:

[0011] Get the drying time of the clothes processing equipment;

[0012] When the drying time reaches the set time, it is determined that the timing for executing the sterilization program has arrived.

[0013] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the set time is related to the initial weight of the clothes before drying, and the greater the weight of the dehumidified clothes, the longer the set time.

[0014] In conjunction with the first aspect, in an optional implementation of the embodiment of the present application, the following method is used to determine whether the sterilization procedure has been executed:

[0015] Obtain the air inlet and outlet temperatures of the laundry tub;

[0016] determining a temperature difference between the inlet air temperature and the outlet air temperature;

[0017] When the temperature difference is less than or equal to the set temperature difference, it is determined that the timing for executing the sterilization program has arrived.

[0018] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the target sterilization parameters include: target ozone concentration, and / or target ozone ventilation time, and / or target ozone degradation time.

[0019] In conjunction with the first aspect, in an optional implementation of the embodiment of the present application, the drying parameter includes the temperature inside the laundry treatment drum, and determining the target sterilization parameter based on the drying parameter includes:

[0020] Get the temperature inside the cylinder;

[0021] The target sterilization parameter is determined according to the temperature inside the barrel, and the higher the temperature inside the barrel is, the smaller the value of the target sterilization parameter is.

[0022] In conjunction with the first aspect, in an optional implementation of the embodiment of the present application, the drying parameters include the temperature inside the laundry treatment drum and the initial weight of the laundry before drying, and determining the target sterilization parameters based on the drying parameters includes:

[0023] Get the temperature inside the cylinder;

[0024] When the temperature inside the barrel is lower than the set temperature, the target sterilization parameter is determined according to the temperature inside the barrel, and the higher the temperature inside the barrel is, the smaller the value of the target sterilization parameter is;

[0025] When the temperature in the drum is greater than or equal to the set temperature, the target sterilization parameter is determined according to the initial laundry weight, and the greater the initial laundry weight, the greater the value of the target sterilization parameter.

[0026] In conjunction with the first aspect, in an optional implementation of the embodiment of the present application, the drying and sterilization method further includes:

[0027] During the sterilization process, the real-time sterilization parameters in the laundry treatment drum are monitored;

[0028] When the real-time sterilization parameter reaches the preset end condition of the sterilization program, ending the sterilization program;

[0029] After the sterilization process is completed, the heating device and the air supply component are controlled to restart and continue to dry the clothes in the drum until the preset dryness condition is reached;

[0030] The real-time ozone parameters include real-time ozone concentration and / or real-time ozone degradation duration.

[0031] According to the second aspect of the embodiment of the present application, a control device is provided, which includes a memory and a processor, wherein the memory stores the drying and sterilization method proposed in the first aspect of the present embodiment, and the processor is used to adopt the above-mentioned drying and sterilization method proposed in the first aspect of the present embodiment when executing the drying and sterilization method.

[0032] According to a third aspect of the embodiment of the present application, a clothing processing device is provided, which adopts the drying and sterilization method proposed in the first aspect of the embodiment, or the control device proposed in the second aspect of the embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the clothing processing device provided in an embodiment of the present application.

[0034] Figure 2 This is one of the drying and sterilization flow charts provided in the implementation manner of this application.

[0035] Figure 3 This is the second drying and sterilization flow chart provided in the embodiment of this application.

[0036] Figure 4 This is the third drying and sterilization flow chart provided in the embodiment of this application.

[0037] Figure 5 This is the fourth drying and sterilization flow chart provided in the embodiment of this application.

[0038] Figure 6 It is a structural block diagram of the control device provided in the embodiment of the present application.

[0039] Figure numerals: 1. Shell; 2. Door; 3. Clothes processing drum; 4. Return air outlet; 5. Air duct component; 6. Heating device; 7. Air supply component; 8. Air inlet; 9. Ozone generator; 10. Ozone inlet; 200. Communication bus; 300. User interface; 400. External communication interface; 500. Memory. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0041] It should be understood that the "plurality" mentioned herein refers to two or more. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with basically the same functions and effects. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not limit certain different

[0042] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0043] In real life, users are prone to odors such as cigarette smoke, sweat, hot pot, and snail noodle soup. Washing machines are often combined with nano-photocatalytic technology, which uses light of a specific wavelength to excite nano-photocatalysts to remove odors from clothing. However, this simple nano-photocatalytic method cannot completely remove odors from clothing.

[0044] In related technologies, the high-temperature airflow during the clothes drying process can reach 50°C to 70°C, which can basically achieve comprehensive sterilization of Staphylococcus aureus. However, for molds and Pseudomonas aeruginosa that can withstand high temperatures, high-temperature drying airflow alone cannot effectively and completely eliminate them. Introducing ozone or other substances into the clothes processing drum during the drying process can effectively remove molds, Pseudomonas aeruginosa, etc., but introducing ozone or other substances during the high-temperature air blowing process will accelerate the consumption of ozone and prolong the sterilization time, and ozone leakage may also occur, polluting the external environment.

[0045] In order to solve the above technical problems, the embodiments of the present application provide a clothes processing device, which includes:

[0046] During the clothes drying process, controlling the heating device and the air supply component to start operation, controlling the rotation of the clothes processing drum, and determining whether the execution time of the sterilization program has been reached during the process of controlling the rotation of the clothes processing drum;

[0047] When the execution time of the sterilization program is reached, the drying parameters are obtained, and the target sterilization parameters are determined according to the drying parameters;

[0048] Entering the sterilization program, controlling the heating device and the air supply component to stop running, and making the clothes processing drum rotate at a preset rotation-stop ratio, inputting ozone into the clothes processing drum according to the target sterilization parameters.

[0049] In this embodiment, by controlling the air supply component to stop operating when the sterilization process is ready, the high-temperature airflow is prevented from accelerating ozone consumption and prolonging the sterilization process, as well as from ozone leaking into the external environment with the high-temperature airflow and contaminating it. After the sterilization process is complete, the heating device and air supply component are controlled to start again, ensuring effective drying of the clothes. Controlling the heating device to stop operating during the sterilization process prevents damage to the heating device due to prolonged operation when the air is not being blown.

[0050] Furthermore, the timing for executing the sterilization program is determined based on whether the drying time of the clothes drying process reaches the set drying time or the temperature difference between the inlet and outlet air of the clothes treatment drum reaches the set temperature difference. At this time, the moisture content of the clothes in the clothes treatment drum is low, and the drum contains wet steam evaporated during the drying process of the clothes. The wet steam evaporated from the clothes can accelerate the dissolution and diffusion of ozone, so that the ozone quickly reaches the target concentration, and a certain humidity will cause the bacterial cell membrane to open, making it easier for ozone to interact with the cells, which can further improve the sterilization effect.

[0051] The technical solution of this embodiment is described in detail below with reference to the accompanying drawings. The following embodiments and examples can be combined with each other unless there is any conflict.

[0052] First, the execution body of the drying and sterilization method of this embodiment is introduced.

[0053] The drying and sterilizing method of this embodiment is applied to a clothes processing device. The clothes processing device of this embodiment can have only a drying function or can have both a drying function and a washing function. The structure of the clothes processing device can be a drum type or a pulsator type. Figure 1 Taking a drum-type laundry processing device as an example, the laundry processing device includes a housing 1 and a laundry processing drum 3. When the laundry processing device only has a drying function, the laundry processing drum 3 is rotatably disposed within the housing 1, and the wall of the laundry processing drum 3 does not have a flow opening. When the laundry processing device has both drying and washing functions, the housing 1 is further provided with an outer drum, and the laundry processing drum 3 is rotatably disposed as an inner drum within the outer drum. The wall of the laundry processing drum 3 has a flow opening, and washing water or air flows between the laundry processing drum 3 and the outer drum through the flow opening.

[0054] The housing 1 is further provided with a clothes feeding port, which corresponds to the opening of the clothes processing tub 3. The clothes processing device comprises a door 2, which is provided at the clothes feeding port and is used to open and close the clothes feeding port.

[0055] The clothing loading port is also provided with a door seal, which can fit tightly against the opening of the clothing processing tub 3 when the machine door closes the clothing loading port, preventing water or air in the clothing processing tub 3 from overflowing from the gap between the machine door and the opening of the clothing processing tub 3.

[0056] The clothing processing device also includes a drying system, which includes a heating device 6, an air supply component 7 and an air duct component 5. The clothing processing drum 3 is provided with an air inlet 8 and an air return port 4. The air inlet 8 is provided at the door seal, and the return air port 4 is provided at the bottom of the clothing processing drum 3. The air duct component 5 connects the return air port 4 with the air inlet end of the air supply component 7, and the air duct component 5 also connects the air inlet 8 with the air outlet end of the air supply component 7. The heating device 6 is capable of heating the air flow in the air duct component 5. The air supply component 7 is, for example, a fan, and the heating device 6 can be an electric heating device or a heat pump system. Temperature sensors are also provided at the air inlet 8 and the return air port 4, respectively, for detecting the temperature of the air inlet 8 and the temperature of the return air port 4.

[0057] Furthermore, the clothing treatment apparatus further comprises an ozone generator 9 , which is disposed in the housing 1 and is configured to generate ozone and to pass the ozone into the clothing treatment tub 3 through the ozone inlet 10 .

[0058] In other feasible ways, the clothing treatment device can also be connected to an external ozone generator 9. When the clothing needs to be sterilized by ozone, the ozone generated by the external ozone generator 9 is pumped into the clothing treatment drum 3 through the ozone inlet 10 through the external pipeline.

[0059] The drying and sterilization process of this embodiment is introduced in detail below.

[0060] Figure 2 This is one of the drying and sterilization flow charts provided in the embodiment of this application, refer to Figure 2 The drying and sterilization flow chart of this embodiment includes the following steps:

[0061] S21. During the clothes drying process, the heating device and the air supply component are controlled to start and operate, the clothes processing drum is controlled to rotate, and during the process of controlling the rotation of the clothes processing drum, it is also determined whether the timing for entering the sterilization program has arrived.

[0062] Specifically, during the clothes drying process, the heating device and the air supply unit are activated. The heating device heats the air in the air duct, and the air supply unit drives the hot air in the air duct into the clothes processing drum, simultaneously bringing the hot and humid air in the clothes processing drum back into the air duct. The clothes processing drum is in a rotating state during the drying process to improve the uniformity of the clothes drying effect.

[0063] The heating device can be an electric heater or a heat pump system. In the case of a heat pump system, the system comprises a refrigerant circulation circuit consisting of a compressor, condenser, electronic expansion valve, and evaporator. During the clothes drying process, by controlling the activation of the compressor and air supply components, the evaporator condenses the hot and humid air entering the air duct from the return air vent into a dry, cold airflow. The evaporator then heats the dry, cold airflow to generate a hot airflow.

[0064] In the process of controlling the rotation of the laundry treatment tub, it is also determined whether the execution timing of the sterilization program has been reached, so that the sterilization program is executed when the execution timing of the sterilization program has been reached.

[0065] S22. When the sterilization program execution timing is reached, obtain drying parameters, and determine target sterilization parameters according to the drying parameters.

[0066] Specifically, when the sterilization process is ready, the humidity level of the clothes is within the set range but has not yet reached the preset dryness threshold. At this point, the clothes reach a low moisture content but not yet completely dry state. The moisture vapor within the drum, which evaporates from the clothes, not only facilitates the dissolution and diffusion of ozone, rapidly increasing ozone concentration, but also causes the bacterial cell membranes to open, making it easier for ozone to interact with the cells and thus promoting sterilization. Furthermore, the clothes remaining in this humidity state will not affect the overall drying process. If the air supply and heating components are turned off when the clothes are at a high humidity, the temperature within the clothes treatment drum will drop after the sterilization process. When the air supply and heating components are turned on again, the temperature rise will be slower, affecting the overall drying process.

[0067] For example, when the sterilization program is ready, the moisture content of the clothes is 70%-90%, and the humidity of the wet steam in the drum is 60%-85%.

[0068] After determining that the time has come to execute the sterilization program, before introducing ozone into the clothing treatment drum, the target sterilization parameters of the sterilization program are determined based on the drying parameters, so that ozone can be introduced into the clothing treatment drum with the target sterilization parameters in the subsequent sterilization process to ensure efficient sterilization of the clothes.

[0069] The drying parameters include at least the temperature inside the laundry treatment drum; the target sterilization parameters include the target ozone concentration in the laundry treatment drum, and / or the target ozone flow time, and / or the target ozone degradation time.

[0070] S23, entering the sterilization program, controlling the heating device and the air supply component to stop running, and rotating the clothes processing drum at a preset rotation-stop ratio, and inputting ozone into the clothes processing drum according to the target sterilization parameters.

[0071] Specifically, by controlling the heating device and the air supply component to stop running after entering the sterilization program, it is possible to avoid the high-temperature airflow accelerating the consumption of ozone and prolonging the sterilization time, and to avoid the ozone leaking into the external environment with the high-temperature airflow and polluting the external environment. At the same time, it is also possible to avoid the heating device being damaged by long-term operation when not blowing air. In the sterilization program, the source of ozone introduced into the clothing treatment drum can be the ozone generator provided by the clothing treatment equipment, or the source of ozone can be an ozone generator independent of the clothing treatment equipment and connected to the clothing treatment drum. The ozone generator is, for example, an ozone generator, and ozone is ozone. In the sterilization program, by introducing ozone into the clothing treatment drum with the target sterilization parameters corresponding to the current drying parameters, efficient and thorough removal of clothing can be achieved without affecting the overall drying time of the clothing.

[0072] In some embodiments, during a sterilization program, the laundry tub is controlled to maintain rotation at a preset rotation-to-stop ratio to promote uniform distribution of ozone within the laundry tub. The rotation frequency of the laundry tub during the sterilization program is not specifically limited; for example, the rotation-to-stop ratio during the sterilization program is 115 seconds of rotation and 5 seconds of stop.

[0073] In this embodiment, there are multiple ways to determine whether the timing for executing the sterilization program has arrived.

[0074] In one example, if Figure 3 As shown in the flowchart, determining whether the timing for executing the sterilization procedure has been reached includes the following steps:

[0075] S31, obtaining the drying time of the clothes processing equipment;

[0076] S32: When the drying time reaches the set time, it is determined that the sterilization program is ready to be executed.

[0077] Specifically, when the drying time reaches the set time, it means that the humidity of the clothes is within the set humidity range and has not reached the preset dryness judgment condition, and it is determined that the time has come to execute the sterilization program. At this time, the wet steam evaporated from the clothes in the drum will accelerate the dissolution and diffusion of ozone, and the wet steam in the drum will also cause the cell membrane of bacteria to open, making it easier for ozone to interact with the cells, improving the sterilization effect. In addition, entering the sterilization program under this humidity state will not affect the entire drying process. If the drying time does not reach the set time, the time has not come to execute the sterilization program, and the clothes will continue to be dried.

[0078] The set drying time is related to the initial weight of the clothes before drying. The heavier the dehumidified clothes, the longer the set drying time. Different weight levels correspond to different set drying times. The set drying time is determined by measuring the weight of the dehumidified clothes before the drying process begins. When the clothes have been dried for the set drying time, the sterilization process is executed.

[0079] In another example, Figure 4 The flowchart shown in FIG. 1 shows the steps for determining whether the sterilization procedure has been achieved:

[0080] S41, obtaining the air inlet temperature and air outlet temperature of the laundry processing drum;

[0081] S42, determining the temperature difference between the inlet air temperature and the outlet air temperature;

[0082] S43. When the temperature difference is less than or equal to the set temperature difference, it is determined that the timing for executing the sterilization program has arrived.

[0083] Specifically, during the drying process, the inlet air temperature and the return air temperature of the clothing processing drum are used to obtain a temperature difference based on the inlet air temperature and the return air temperature. When the temperature difference is less than or equal to the set temperature difference, it means that the humidity of the clothing is within the set humidity range and has not reached the preset dryness judgment condition, and it is determined that the time to execute the sterilization program has been reached. At this time, the wet steam evaporated from the clothing in the drum will accelerate the dissolution and diffusion of ozone, and the wet steam in the drum will also open the cell membrane of bacteria, making it easier for ozone to interact with cells and enhance the sterilization effect. Moreover, entering the sterilization program under this humidity state will not affect the entire drying process. When the temperature difference is greater than the set temperature difference, the inlet air temperature and the return air temperature will continue to be monitored until the temperature difference is less than or equal to the set temperature difference. The range of the set temperature difference is, for example, 12°C-18°C.

[0084] In this embodiment, there are multiple ways to determine the target sterilization parameters based on the drying parameters.

[0085] In one example, the drying parameters include the temperature inside the clothing treatment drum, and the target sterilization parameters of ozone are determined based on the drying parameters, including: obtaining the temperature inside the drum, determining the target sterilization parameters based on the temperature inside the drum, and the higher the temperature inside the drum, the smaller the value of the target sterilization parameter.

[0086] Specifically, the control device of the clothing processing equipment stores the correspondence between the parameter value of the target sterilization parameter and the temperature in the barrel. Different barrel temperature intervals correspond to different parameter values ​​of the target sterilization parameter, and the higher the barrel temperature, the smaller the parameter value of the target sterilization parameter corresponding to the barrel temperature interval. This is because the higher the barrel temperature, the higher the barrel temperature during the process of introducing ozone into the clothing processing barrel and during the ozone degradation process. It is more conducive to improving the sterilization effect during the process of introducing ozone, and the remaining ozone can be degraded more quickly after the ozone is stopped. Therefore, a smaller sterilization parameter value can be used to obtain a better sterilization effect. The lower the barrel temperature, the less conducive it is to improving the sterilization effect during the process of introducing ozone, and after the ozone is stopped, the barrel temperature will drop to a temperature range that is not conducive to ozone degradation, which will cause the ozone degradation time to be prolonged, and the parameter value of the sterilization parameter needs to be appropriately increased.

[0087] For example, when the temperature inside the cylinder is lower than the first temperature, the target ozone concentration is determined to be C2, the target ozone passage time is tc2, and the target ozone degradation time is tj2;

[0088] When the temperature in the cylinder is greater than or equal to the first temperature and less than the second temperature, the target ozone concentration is determined to be C1, the target ozone flow time is tc1, and the target ozone degradation time is tj1;

[0089] When the temperature in the cylinder is greater than or equal to the second temperature, the target ozone concentration is determined to be C3, the target ozone passage time is determined to be tc3, and the target ozone degradation time is determined to be tj3.

[0090] Exemplarily, the first temperature ranges from 50°C to 60°C, preferably 55°C; the second temperature ranges from 60°C to 65°C, preferably 65°C;

[0091] Among them: C2>C1>C3, tc2>tc1>tc3, tj2>tj1>tj3; C31<C32, tc31<tc32, tj31<tj32.

[0092] Exemplarily, C1 ranges from 7 ppm to 12 ppm, preferably 10 ppm, tc1 ranges from 10 min to 20 min, preferably 15 min, and tj1 ranges from 4 min to 8 min, preferably 5 min.

[0093] The range of C2 is 10ppm~15ppm, preferably 12ppm~13ppm, the range of tc2 is 15min~25min, preferably 20min, and the range of tj2 is 5min~10min, preferably 8min.

[0094] The range of C3 is 4ppm to 10ppm, preferably 6ppm, the range of tc3 is 10min to 20min, preferably 12min, and the range of tj3 is 3min to -8min, preferably 4min;

[0095] In another example, the drying parameters include the temperature inside the clothing treatment drum and the initial weight of the clothing before drying, and the target sterilization parameters of the ozone are determined based on the drying parameters, including: obtaining the temperature inside the drum, and when the temperature inside the drum is lower than the set temperature, determining the target sterilization parameters based on the temperature inside the drum, and the higher the temperature inside the drum, the smaller the value of the target sterilization parameters; when the temperature inside the drum is greater than or equal to the set temperature, determining the target sterilization parameters based on the initial weight of the clothing, and the higher the initial weight of the clothing, the larger the value of the target sterilization parameters.

[0096] Specifically, the drying temperature typically rises to a higher level when the laundry load in the laundry treatment drum is heavy. The heavier the laundry, the less the laundry is spread out during the rotation of the laundry treatment drum, and the less uniform the temperature inside the drum. Therefore, when the drum temperature reaches the set point, it indicates that the laundry load is heavy, and the target sterilization parameters need to be further determined based on the laundry load, such as a set temperature of 60°C to 70°C.

[0097] The control device of the clothing treatment equipment stores the correspondence between the parameter value of the target sterilization parameter and the initial weight of the clothing. Different initial weight ranges correspond to different target sterilization parameter values, and the larger the initial weight of the clothing, the larger the target sterilization parameter value corresponding to the initial weight range. For example, when the initial weight of the clothing is between 3kg and 4kg, the target concentration of the sterilization parameter is determined to be C31, the target ozone flow time is tc31, and the target ozone degradation time is tj31. When the initial weight of the clothing is between 5kg and 6kg, the target concentration of the sterilization parameter is determined to be C32, the target ozone flow time is tc32, and the target ozone degradation time is tj32.

[0098] Exemplarily, the range of C31 is 4ppm~7ppm, preferably 5ppm, the range of tc31 is 10min~20min, preferably 14min, and the range of tj3 is 3min~6min, preferably 4min; the range of C32 is 5ppm~10ppm, preferably 7ppm, the range of tc32 is 10min~20min, preferably 15min, and the range of tj3 is 3min~8min, preferably 4min~5min.

[0099] When the temperature inside the barrel is lower than the set temperature, the target sterilization parameters can be directly determined based on the temperature inside the barrel. This process is similar to the implementation method of determining the target sterilization parameters based on the temperature inside the barrel in the previous example, and will not be repeated here.

[0100] In some embodiments, the drying and sterilization method further includes: during the execution of the sterilization program, the real-time sterilization parameters in the clothing treatment drum are also monitored, and the sterilization program is ended when the real-time ozone parameters reach the preset end conditions of the sterilization program; after the sterilization program is ended, the heating device and the air supply component are controlled to restart and continue to dry the clothes in the drum until the preset dryness conditions are reached; the real-time ozone parameters include real-time ozone concentration, and / or real-time ozone degradation time.

[0101] Specifically, during the sterilization process, ozone is introduced into the laundry tub according to target sterilization parameters. Where the target sterilization parameters include a target ozone concentration, a target ozone flow duration, and a target ozone degradation duration, ozone is introduced into the laundry tub at the target concentration during the sterilization process. After the target ozone flow duration is reached, ozone introduction is stopped, allowing the residual heat in the tub to rapidly degrade any remaining ozone.

[0102] After the target ozone degradation time is reached or the sterilization concentration in the clothing treatment drum is degraded to the qualified value, it means that the preset conditions for ending the sterilization program are met. At this time, the sterilization program is ended, and the air supply component and heating device are restarted to continue drying the clothes in the drum.

[0103] During the drying process, the inlet air temperature and the return air temperature are monitored, and the preset drying condition is determined to be met based on the temperature difference between the inlet air temperature and the return air temperature. If the temperature difference between the inlet air temperature and the return air temperature is less than or equal to a third temperature, it is determined that the preset drying condition is met, the air supply component and the heating device are controlled to stop starting, and the entire drying process ends. If the temperature difference between the inlet air temperature and the return air temperature is greater than or equal to the third temperature, it is determined that the preset drying condition is not met, and the clothes continue to be dried. The third temperature is, for example, 5°C-10°C. In other feasible methods, it can also be determined that the preset drying condition is met based on the drying time reaching the set drying time.

[0104] In general, this embodiment turns off the heating components and the air supply components when the moisture content of the dried clothes is low, and then introduces ozone to sterilize the clothes. After stopping the introduction of ozone, the residual temperature in the drum is used to degrade the remaining ozone, which not only enhances the sterilization effect, but also minimizes the risk of ozone leakage exceeding the standard.

[0105] The drying and sterilization process of this embodiment is described in detail below.

[0106] Reference Figure 5 In the flowchart, after a user places clothes into the laundry inlet, drying and sterilization are initiated (step S01). Before drying, the wet clothes are weighed and the weighing level is determined (step S02). The overall drying time or the first drying time for ozone application is then preliminarily determined based on the weighing level (step S03).

[0107] Then the heating device and the air supply component are started to provide high-temperature hot air into the drum to dry the clothes. At the same time, the clothes processing drum rotates at a certain rotation frequency, such as starting for 115 seconds and stopping for 5 seconds (the rotation frequency is not specifically limited) (process S04).

[0108] During the drying process, the air inlet temperature Tj and return air outlet temperature Th are monitored. The air inlet is where the dry hot air is blown into the drying drum by the air supply component, and the return air outlet is where the moist hot air exits the drying drum and flows into the air duct component. The temperature difference ΔT1 is calculated based on the air inlet temperature Tj and the return air outlet temperature Th (process S05).

[0109] It is determined whether ΔT1 satisfies ΔT1≤Ti1 (process S06 ), where Ti1 is a preset value, preferably 12-18° C.

[0110] If ΔT1≤Ti1 is not satisfied, the air inlet temperature Tj and the return air outlet temperature Th are continuously monitored until ΔT≤Ti1 is satisfied. Alternatively, when the drying time reaches the first set time, ozone sterilization can be performed.

[0111] If ΔT1≤Ti1 is satisfied, it is determined that ozone can be introduced into the laundry treatment tub. Alternatively, when the drying time reaches a first set time, ozone sterilization can be used.

[0112] After determining that ozone can be introduced into the laundry treatment drum, the drum temperature Tn is detected (process S07), and it is determined whether the drum temperature Tn satisfies Tn≥Ti2 (process S08). Ti2 is a preset value, which can be selected as 50-60°C, and preferably 55°C.

[0113] If Tn<Ti2, the target ozone concentration is determined to be C2, the target ozone passage time is tc2, and the target ozone degradation time is tj2 (process S12-S13).

[0114] If Tn≥Ti2 is satisfied, it is necessary to further determine whether Tn satisfies Tn≥Ti3 (process S09), where Ti3 is a preset value, which can be selected as 60-65°C, preferably 65°C, and Ti2<Ti3.

[0115] If Tn<Ti3 is satisfied, the target ozone concentration is determined to be C1, the target ozone passage time is tc1, and the target ozone degradation time is tj1 (process S14-S15);

[0116] If Tn≥Ti3 is satisfied, the target ozone concentration is determined to be C3, the target ozone passage time is tc3, and the target ozone degradation time is tj3 (process S10~S11). Alternatively, when Tn≥Ti3 is satisfied, the target ozone concentration, target ozone passage time, and target ozone degradation time are further determined in combination with the initial weight of the clothes before drying. For example, when the initial weight of the clothes is 3kg-4kg, the target ozone concentration is determined to be C31, the target ozone passage time is tc31, and the target ozone degradation time is tj31; when the initial weight of the clothes is 5kg-6kg, the target ozone concentration is determined to be C32, the target ozone passage time is tc32, and the target ozone degradation time is tj32.

[0117] Among them: C2>C1>C3, tc2>tc1>tc3, tj2>tj1>tj3; C31<C32, tc31<tc32, tj31<tj32.

[0118] After determining the target ozone concentration, target ozone flow duration, and target ozone degradation duration, proceed to the next step. The air supply and heating components are turned off, and the hot air is stopped (step S16). The drum continues to rotate, and ozone at the target concentration is introduced into the drum for sterilization (step S17). Once the target ozone flow duration is reached, ozone flow is stopped, and the higher residual temperature in the drum is used to rapidly degrade any remaining ozone (step S18).

[0119] After the target ozone degradation time is reached or the ozone concentration degradation reaches the qualified value, the air supply component and the heating device are restarted to continue drying the clothes (process S19). During the drying process, the air inlet temperature Tj and the return air outlet temperature Th are monitored, and the temperature difference △T2 is obtained according to the air inlet temperature Tj and the return air outlet temperature Th. It is judged whether △T2 satisfies △T2≤Ti4 (process S20). If △T2≤Ti4 is satisfied, it means that the clothes have been completely dried and the entire drying and sterilization process is completed (process S21); if △T2>Ti4, it means that the clothes are not completely dried and the clothes continue to be dried. Ti4 is a preset value, which can be preferably 5-10℃. Alternatively, when the drying time reaches the second set drying time, the clothes can be considered to be completely dried.

[0120] An embodiment of the present application further provides a control device, comprising a memory and a processor, wherein the memory stores the aforementioned drying and sterilization method, and the processor is configured to employ the aforementioned drying and sterilization method when executing the drying and sterilization method.

[0121] Specifically, such as Figure 6 As shown, the control device includes a processor 100, at least one communication bus 200, a user interface 300, at least one external communication interface 400, and a memory 500. The communication bus 200 is configured to enable communication between these components. The user interface 300 may include a display screen, and the external communication interface 400 may include a standard wired interface and a wireless interface. The memory 500 stores a drying and sterilization method. The processor 100 is configured to employ the above method when executing the drying and sterilization method stored in the memory 500.

[0122] The embodiments of the present application also provide a clothing processing device, which adopts the drying and sterilization method of the aforementioned embodiment, or includes the control device of the aforementioned embodiment.

[0123] In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The steps shown in the relevant flow charts can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flow chart, in some cases, the steps shown or described can be performed in an order different from that shown here. In other words, the order of steps described in the foregoing embodiments is only an example, and reasonable adjustment of the order of steps based on the content of the embodiments of the present application is also within the scope of protection of the embodiments of the present application.

[0124] The sequence of numbers or introductions of the implementation methods of this application is for description only and does not represent the advantages or disadvantages of the implementation methods.

[0125] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0126] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of this embodiment.

[0127] In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The above-mentioned integrated units may be implemented in the form of hardware or software functional units.

[0128] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer, or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, or a magnetic tape), an optical medium (e.g., a digital versatile disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiments of the present application may be a non-volatile storage medium, in other words, a non-transient storage medium.

[0129] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in the implementation of this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions. For example, the scene data of the current frame in the three-dimensional virtual scene, the device information of the client, and the scene interaction information involved in the implementation of this application are all obtained with full authorization.

[0130] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A drying and sterilizing method for a clothes processing device, wherein the clothes processing device comprises a heating device, an air supply component and a clothes processing drum, characterized in that: The drying and sterilization method comprises: During the clothes drying process, controlling the heating device and the air supply component to start operation, controlling the clothes processing drum to rotate, and determining whether the execution time of the sterilization program has arrived during the process of controlling the rotation of the clothes processing drum; When the execution time of the sterilization program is reached, a drying parameter is obtained, and a target sterilization parameter is determined according to the drying parameter; Entering the sterilization program, controlling the heating device and the air supply component to stop running, and rotating the clothes processing drum at a preset rotation-stop ratio, and inputting ozone into the clothes processing drum according to the target sterilization parameters.

2. The drying and sterilization method according to claim 1, characterized in that: The following methods are used to determine whether the timing for executing the sterilization procedure has been reached: Get the drying time of the clothes processing equipment; When the drying time reaches the set time, it is determined that the timing for executing the sterilization program has arrived.

3. The drying and sterilization method according to claim 2, characterized in that: The set time is related to the initial weight of the clothes before drying, and the greater the weight of the dehumidified clothes, the longer the set time.

4. The drying and sterilization method according to claim 1, characterized in that: The following methods are used to determine whether the timing for executing the sterilization procedure has been reached: Obtain the air inlet and outlet temperatures of the laundry tub; determining a temperature difference between the inlet air temperature and the outlet air temperature; When the temperature difference is less than or equal to the set temperature difference, it is determined that the timing for executing the sterilization program has arrived.

5. The drying and sterilization method according to claim 1, characterized in that: The target sterilization parameters include: target ozone concentration, and / or target ozone ventilation time, and / or target ozone degradation time.

6. The drying and sterilization method according to any one of claims 1 to 5, characterized in that: The drying parameter includes the temperature inside the laundry treatment drum, and determining the target sterilization parameter according to the drying parameter includes: Get the temperature inside the cylinder; The target sterilization parameter is determined according to the temperature inside the barrel, and the higher the temperature inside the barrel is, the smaller the value of the target sterilization parameter is.

7. The drying and sterilization method according to any one of claims 1 to 5, characterized in that: The drying parameters include the temperature inside the laundry treatment drum and the initial weight of the laundry before drying. The determining of the target sterilization parameters based on the drying parameters includes: Get the temperature inside the cylinder; When the temperature inside the barrel is lower than the set temperature, the target sterilization parameter is determined according to the temperature inside the barrel, and the higher the temperature inside the barrel is, the smaller the value of the target sterilization parameter is; When the temperature in the drum is greater than or equal to the set temperature, the target sterilization parameter is determined according to the initial laundry weight, and the greater the initial laundry weight, the greater the value of the target sterilization parameter.

8. The drying and sterilization method according to claim 1, characterized in that: The drying and sterilization method also includes: During the sterilization process, the real-time sterilization parameters in the laundry treatment drum are monitored; When the real-time sterilization parameter reaches the preset end condition of the sterilization program, ending the sterilization program; After the sterilization process is completed, the heating device and the air supply component are controlled to restart and continue to dry the clothes in the drum until the preset dryness condition is reached; The real-time sterilization parameters include real-time ozone concentration and / or real-time ozone degradation time.

9. A control device, characterized in that: It includes a memory and a processor, wherein the memory stores the drying and sterilization method according to any one of claims 1 to 8, and the processor is used to adopt the drying and sterilization method according to any one of claims 1 to 8 when executing the drying and sterilization method.

10. A clothes processing device, characterized in that: It adopts the drying and sterilization method according to any one of claims 1 to 8, or includes the control device according to claim 9.

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