Drying method of clothes treatment equipment, control device and clothes treatment equipment

Abstract

The embodiment of the invention discloses a drying method of clothes processing equipment, a control device and the clothes processing equipment, the clothes processing equipment comprises a clothes processing drum and a heating device, the heating device can heat airflow entering the clothes processing drum, and the drying method comprises the steps that in the drying and dehumidifying stage, the heating device is controlled to be in a heating state; acquiring an electrical parameter value of the heating device, and controlling a start-stop strategy of the heating device according to the electrical parameter value and the initial air outlet temperature of the clothes processing drum; wherein the initial air outlet temperature is the air outlet temperature of the clothes processing drum before the heating device is started for heating; the electrical parameter value comprises at least one of working voltage, working current and working power. According to the embodiment, the jumping times of the heating device and the temperature limiter can be effectively reduced, the service life of equipment is prolonged, the application range is widened, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of clothing treatment equipment, and more specifically, to a drying method, a control device, and a clothing treatment equipment for clothing treatment equipment. Background Art

[0002] Clothing treatment equipment with a drying function usually adopts an electric heating drying method or a heat pump drying method. The heating device of clothing treatment equipment using electric heating drying is generally controlled by a single electric heating tube for heating and drying. During the process of drying clothes, especially when the heating device is in a high-voltage state, the power is too large and the heat is concentrated, which will cause the electric heating tube to turn on and off frequently. This not only affects the drying effect, but also affects the service life of the electric heating tube, and increases the jumping probability of the manual temperature limiter, resulting in heating abnormalities and prompting faults, increasing the probability of after-sales complaints and affecting the user experience. Summary of the Invention

[0003] The embodiments of the present application provide a drying method, a control device, and a clothing treatment equipment for clothing treatment equipment, so as to at least solve the technical problems that when a clothing treatment equipment with a drying function uses an electric heating device for heating and drying, the heating tube turns on and off frequently in a high-voltage working state, affecting the drying effect and service life, and increasing the jumping probability of the manual temperature limiter, thereby increasing the probability of after-sales complaints.

[0004] According to the first aspect of the embodiments of the present application, a drying method for clothing treatment equipment is provided. The clothing treatment equipment includes a clothing treatment cylinder and a heating device, and the heating device can heat the air flow entering the clothing treatment cylinder. The drying method includes:

[0005] In the drying and dehumidifying stage, control the heating device to be in a heating state;

[0006] Obtain the electrical parameter values of the heating device, and control the start-stop strategy of the heating device according to the electrical parameter values and the initial air outlet temperature of the clothing treatment cylinder;

[0007] Wherein: the initial air outlet temperature is the air outlet temperature of the clothing treatment cylinder before the heating device starts heating; the electrical parameter values include at least one of the working voltage, working current, and working power.

[0008] By adopting this embodiment, during the drying and dehumidifying stage, the start and stop of the heating device are regulated according to the electrical parameter values of the heating device, which can effectively reduce the number of jumps of the heating device and the temperature limiter, extend the service life of the equipment, enrich the scope of use, and improve the user experience.

[0009] In combination with the first aspect, in an alternative implementation manner of the embodiments of the present application, controlling the start-stop strategy of the heating device according to the electrical parameter value and the initial air outlet temperature of the laundry treatment drum includes:

[0010] Adjusting the inlet air temperature limit value of the laundry treatment drum according to the electrical parameter value and the initial air outlet temperature of the laundry treatment drum;

[0011] Controlling the start and stop of the heating device according to the inlet air temperature limit value.

[0012] In combination with the first aspect, in an alternative implementation manner of the embodiments of the present application, adjusting the inlet air temperature limit value of the laundry treatment drum according to the electrical parameter value and the initial air outlet temperature of the laundry treatment drum includes:

[0013] When the electrical parameter value ≥ the set value, or when the initial air outlet temperature ≥ the set air outlet temperature, adjusting the inlet air temperature limit value of the laundry treatment drum to the first limit value;

[0014] When the electrical parameter value < the set value and the initial air outlet temperature < the set air outlet temperature, the inlet air temperature limit value of the laundry treatment drum is the second limit value;

[0015] Wherein: the first limit value is less than the second limit value.

[0016] In combination with the first aspect, in an alternative implementation manner of the embodiments of the present application, the laundry treatment device includes a drying air duct, the laundry treatment drum includes an air inlet and an air outlet, the drying air duct connects the air inlet and the air outlet, the heating device includes a first heater and a second heater, the first heater is arranged in the drying air duct, and the second heater is arranged in the laundry treatment drum and at the bottom of the laundry treatment drum;

[0017] Controlling the heating device to be in a heating state includes:

[0018] Controlling both the first heater and the second heater to be in a heating state, and during the heating process of the second heater, also controlling the water level in the laundry treatment drum to be within a set water level range.

[0019] In combination with the first aspect, in an alternative implementation manner of the embodiments of the present application, before the drying and dehumidifying stage, a drying temperature rising stage is also executed, and the drying method further includes:

[0020] During the drying temperature rising stage, controlling both the first heater and the second heater to be in a heating state, and during the heating process of the second heater, also controlling the water level in the laundry treatment drum to be within a set water level range.

[0021] In combination with the first aspect, in an alternative implementation manner of the embodiment of the present application, the drying method further includes:

[0022] Controlling the second heater to heat at a first heating power during the drying temperature-rising stage, and controlling the second heater to heat at a second heating power during the drying dehumidification stage, where: the first heating power > the second heating power;

[0023] And / or, controlling the second heater to continuously heat during the drying temperature-rising stage, and controlling the second heater to heat intermittently during the drying dehumidification stage.

[0024] In combination with the first aspect, in an alternative implementation manner of the embodiment of the present application, during the drying dehumidification stage, the outlet air humidity of the laundry treatment drum is further acquired, and the start-stop states of the first heater and the second heater are controlled according to the outlet air humidity.

[0025] In combination with the first aspect, in an alternative implementation manner of the embodiment of the present application, controlling the start-stop states of the first heater and the second heater according to the outlet air humidity includes:

[0026] When the outlet air humidity > the first set humidity, controlling the first heater to maintain the heating state and controlling the second heater to turn off;

[0027] And / or, when the second set humidity ≤ the outlet air humidity ≤ the first set humidity, controlling the first heater to adjust the heating power according to the outlet air temperature of the laundry treatment drum, and controlling the second heater to heat intermittently according to a preset rhythm;

[0028] And / or, when the outlet air humidity > the second set humidity, controlling the first heater to turn off and controlling the second heater to continue heating for a set duration.

[0029] In combination with the first aspect, in an alternative implementation manner of the embodiment of the present application, before entering the drying process, the clothing material is further determined, and the regulation strategies of the first heater and the second heater during the dehumidification stage are determined according to the clothing material;

[0030] The regulation strategies include the heating times of the first heater and the second heater, and for clothing materials with higher water absorbency, the heating times of the first heater and the second heater during the drying dehumidification stage are longer.

[0031] And / or, the regulation strategies include the heating powers of the first heater and the second heater, and for clothing materials with higher water absorbency, the heating powers of the first heater and the second heater during the drying dehumidification stage are greater.

[0032] According to a second aspect of the embodiments of the present application, a control device is provided, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are configured to implement the drying method provided in the first aspect of the embodiments of the present application.

[0033] According to a third aspect of the embodiments of the present application, a laundry treatment device is provided, which employs the drying method of the laundry treatment device provided in the first aspect of the embodiments of the present application, or includes the control device provided in the second aspect of the embodiments of the present application.

[0034] The technical effects obtained in the above second aspect to the third aspect are similar to those obtained by the corresponding technical means in the first aspect, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other objects, features and advantages of the present disclosure will become more apparent. The following described drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 is a schematic structural diagram of the laundry treatment device provided by the embodiments of the present application.

[0037] Figure 2 is one of the flowcharts of the drying method provided by the embodiments of the present application.

[0038] Figure 3 is the second flowchart of the drying method provided by the embodiments of the present application.

[0039] Figure 4 is the flowchart of the drying method according to a specific example of the present application.

[0040] Figure 5 is the structural block diagram of the control device provided by the embodiments of the present application.

[0041] The reference numerals are as follows: 1, laundry treatment drum; 11, air inlet; 12, first air outlet; 13, second air outlet; 14, flow guiding rib; 2, drying air duct; 21, condensation air duct; 22, hot air duct; 3, first heater; 4, second heater; 5, first pipeline; 51, first water inlet; 6, second pipeline; 61, second water inlet; 7, third pipeline; 8, water pump; 9, drain pipe; 10, humidity sensor; 101, fan; 102, condensation valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] To enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0043] It should be understood that the "plurality" mentioned herein refers to two or more. In the description of the embodiments of this application, unless otherwise specified, " / " means "or". For example, A / B may represent A or B; the "and / or" herein is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in order to clearly describe the technical solutions in the embodiments of this application, in the embodiments of this application, terms such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and roles. Those skilled in the art can understand that the terms "first", "second", etc. do not limit the quantity and execution order, and the terms "first", "second", etc. do not necessarily limit to be different.

[0044] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0045] In the prior art, in a clothing treatment device that uses an electric heating method for drying, usually a single heating device is used to heat the air flow in the drying air duct. However, when the heating device is in a high-voltage working state, it will cause the heating device to turn on and off frequently, affecting the drying effect and the service life of the heater. Moreover, due to the excessive power of the heating device, the automatic temperature limiter may jump frequently, resulting in mis-triggering of the manual temperature limiter. As a result, the heating device has abnormal heating, leading to the clothes not being dried or heating failure, increasing the jumping probability of the manual limiter and increasing the risk of after-sales complaints, and reducing the user experience.

[0046] To solve the above technical problems, the embodiments of this application provide a drying method, a control device and a clothing treatment device for a clothing treatment device. The clothing treatment device includes a clothing treatment cylinder and a heating device, and the heating device can heat the air flow entering the clothing treatment cylinder. The drying method includes:

[0047] In the drying and dehumidifying stage, control the heating device to be in the heating state;

[0048] Obtain the electrical parameter values of the heating device, and control the start-stop strategy of the heating device according to the electrical parameter values and the initial air outlet temperature of the laundry drum;

[0049] Wherein: the initial air outlet temperature is the air outlet temperature of the laundry drum before the heating device starts heating; the electrical parameter values include at least one of the working voltage, working current, and working power.

[0050] In this embodiment, by regulating the start and stop of the heating device according to the electrical parameters of the heating device during the drying and dehumidifying stage, the number of times of jumping of the heating device and the temperature limiter can be effectively reduced, the service life of the equipment can be extended, the usage range can be enriched, and the user experience can be improved.

[0051] The technical solutions of this embodiment will be elaborated in detail below with reference to the accompanying drawings. In the case of no conflict, the following embodiments and examples can be combined with each other.

[0052] First, a brief introduction to the implementation subject of the drying method of this embodiment will be given.

[0053] The drying method of this embodiment is applied to a laundry treatment device, such as a washer-dryer or a dryer. The structural form of the laundry treatment device can be drum type or agitator type, which is not specifically limited herein.

[0054] As Figure 1 shown, the laundry treatment device includes a laundry drum 1. When the laundry treatment device is a washer-dryer, the laundry drum 1 is an outer drum, and a rotatable inner drum is further provided inside the outer drum. When the laundry treatment device is a dryer, the laundry drum 1 is a rotatably arranged drying drum. The laundry drum 1 is provided with an air inlet 11 and an air outlet. The outside drying air flow can enter the laundry drum 1 from the air inlet 11, and the humid and hot air flow inside the laundry drum 1 can be discharged from the air outlet of the laundry drum 1. The laundry treatment device further includes a drying air duct 2, and the drying air duct 2 connects the air inlet 11 and the air outlet. A fan 101 is provided in the drying air duct 2, and the fan 101 drives the air flow to circulate between the laundry drum 1 and the drying air duct 2.

[0055] The number of air outlets is not limited and can be selected according to requirements. Referring to Figure 1 , the laundry drum 1 is provided with a first air outlet 12 and a second air outlet 13. The first air outlet 12 is located at the bottom of the laundry drum 1, and the second air outlet 13 is located at the mouth position of the laundry drum 1. The air flow circulation path is shown by the red arrow in Figure 1 .

[0056] The laundry treatment device further includes a heating device for heating the air flow entering the laundry treatment drum 1. In one example, the heating device includes a first heater 3 disposed in the drying air duct 2. At this time, the laundry treatment device can be an all-in-one washer-dryer or a dryer. In another example, the heating device includes a first heater 3 and a second heater 4. The first heater 3 is disposed in the drying air duct 2, and the second heater 4 is disposed in the laundry treatment drum 1 and at the bottom of the laundry treatment drum 1. At this time, the laundry treatment device is an all-in-one washer-dryer, and the laundry treatment drum 1 is an outer drum. A drain pipe 9 is further provided at the bottom of the laundry treatment drum 1. The drain pipe 9 is provided with a drain pump 8. During the heating process of the second heater 4, the water level at the bottom of the laundry treatment drum 1 needs to be controlled within a preset water level range to avoid dry burning of the second heater 4 and to avoid excessive water level from affecting the laundry drying effect. Among them, the first heater 3 and the second heater 3 are, for example, electric heating tubes or electric heating wires.

[0057] The condensation method of the laundry treatment device is not limited. In one example, as Figure 1 shown, the drying air duct 2 includes a hot air duct 22 and a condensation air duct 21 connected to each other. The hot air duct 22 is communicated with the air inlet 11, and the condensation air duct 21 is communicated with the air outlet. A first heater 3 is provided in the hot air duct 22. By continuously or intermittently introducing condensed water into the condensation air duct 21, the air flow entering the condensation air duct 21 is condensed. In another example, as Figure 1 shown, a plurality of guide ribs 14 are provided at the bottom of the laundry treatment drum 1. By making the water flow along the plurality of guide ribs 14 at the bottom of the drum, the air flow is condensed. In practical applications, the two methods of condensation by the condensation air duct 21 and the guide ribs 14 at the bottom of the drum can also be combined to improve the condensation effect.

[0058] In a specific example, combined with Figure 1 , the laundry treatment device includes a first water inlet 51 and a second water inlet 61. The first water inlet 51 is provided at the bottom of the drum, and the second water inlet 61 is provided in the drying air duct 2 and located in the condensation air duct 21. The laundry treatment device further includes a water inlet pipe provided with a condensation valve 102. The water inlet pipe is communicated with the first water inlet 51 through a first pipeline 5 to continuously or indirectly supply condensed water to the bottom of the drum and make the condensed water flow along the plurality of guide ribs 14 at the bottom of the drum to condense the air flow blowing towards the bottom of the drum. The water inlet pipe is communicated with the second water inlet 61 through a second pipeline 6 to continuously or intermittently introduce condensed water into the condensation air duct 21 to condense the air flow entering the condensation air duct 21. The condensation valve 102 can control the condensation effect by controlling the water inlet flow rate and the water inlet rhythm. The water inlet pipe is further communicated with the bottom of the laundry treatment drum 1 through a third pipeline 7 to supply water into the laundry treatment drum to achieve the laundry function or the water heating function.

[0059] The laundry treatment device further includes a humidity sensor 10 and a temperature sensor. The humidity sensor 10 is arranged at the air outlet to detect the humidity of the outgoing air, and the temperature sensor is arranged at the air inlet 11 and / or the air outlet to detect the temperature of the incoming air and / or the outgoing air, so as to adjust and control the drying process according to the temperature of the incoming air, the temperature of the outgoing air, the humidity of the outgoing air, etc.

[0060] The laundry treatment device further includes an electrical parameter detection device to detect the electrical parameter values of the heating device during the drying process of the laundry treatment device. The electrical parameters are, for example, at least one of the working voltage, the working current, and the working power.

[0061] The following details the technical solution of the drying method according to the embodiments of the present application.

[0062] An embodiment of the present application provides a drying method for a laundry treatment device. The laundry treatment device includes a laundry treatment drum 1 and a heating device. The heating device can heat the air flow entering the laundry treatment drum 1. Referring to Figure 2 the drying flow chart, the drying method includes the following steps:

[0063] S21. In the drying and dehumidifying stage, control the heating device to be in the heating state;

[0064] S22. Obtain the electrical parameter values of the heating device, and control the start-stop strategy of the heating device according to the electrical parameter values and the initial outlet air temperature of the laundry treatment drum 1;

[0065] Specifically, after the laundry treatment device runs the drying program, it needs to first enter the temperature rising stage. Before entering the temperature rising stage, first obtain the outlet air temperature of the laundry treatment drum 1 as the initial outlet air temperature in the subsequent drying control process, that is, the initial outlet air temperature is the outlet air temperature of the laundry treatment drum 1 before the heating device starts to heat. At this time, the heating device is in the off state and does not heat the air flow entering the laundry treatment drum 1.

[0066] After entering the temperature rising stage, control the heating device to start heating to increase the temperature inside the drum, and at the same time detect the inlet air temperature of the laundry treatment drum 1. After the inlet air temperature reaches the preset temperature, it indicates that the drying temperature rising stage is completed, and at this time, enter the drying and dehumidifying stage.

[0067] In the drying and dehumidifying stage, the heating device is still in the heating state to maintain a high temperature state inside the drum. During this process, the moisture in the wet laundry inside the drum is separated from the laundry to achieve the purpose of dehumidification. In the dehumidifying stage, the electrical parameter values of the heating device are also monitored, and the electrical parameter values are combined with the initial outlet air temperature to control the start-stop strategy of the heating device, so as to avoid frequent start and stop of the heating device during the heating process, ensure the drying effect, and at the same time reduce the probability of the manual limiter jumping and improve the user experience. Among them, the electrical parameter values include at least one of the working voltage, the working current, and the working power.

[0068] By adopting this embodiment, the start and stop of the heating device are regulated according to the electrical parameters of the heating device during the drying and dehumidification stage, which can effectively reduce the number of times the heating device and the temperature limiter jump, extend the service life of the equipment, enrich the scope of use, and improve the user experience.

[0069] In an alternative implementation, referring to Figure 3 the drying flow chart shown, the start and stop strategy of the heating device is controlled according to the electrical parameter value and the initial air outlet temperature of the laundry treatment drum 1, including the following steps:

[0070] S31. Adjust the inlet air temperature limit value of the laundry treatment drum 1 according to the electrical parameter value and the initial air outlet temperature of the laundry treatment drum 1;

[0071] S32. Control the start and stop of the heating device according to the inlet air temperature limit value.

[0072] Specifically, after obtaining the electrical parameter value of the laundry treatment equipment during the drying and dehumidification stage, first determine the inlet air temperature limit value of the laundry treatment drum 1 according to the electrical parameter value and the initial temperature, then obtain the inlet air temperature of the laundry treatment drum 1, and control the start and stop of the heating device according to the inlet air temperature and the inlet air temperature limit value.

[0073] In an example, adjusting the inlet air temperature limit value of the laundry treatment drum 1 according to the electrical parameter value and the initial air outlet temperature of the laundry treatment drum 1 includes: when the electrical parameter value ≥ the set value, or when the initial air outlet temperature ≥ the set air outlet temperature, adjusting the inlet air temperature limit value of the laundry treatment drum 1 to the first limit value; when the electrical parameter value < the set value and the initial air outlet temperature < the set air outlet temperature, the inlet air temperature limit value of the laundry treatment drum 1 is the second limit value; where: the first limit value is less than the second limit value.

[0074] This is because, when the electrical parameter ≥ the set value, it indicates that the heating device is in a high-voltage working state, the heating power is too high, and the heat is concentrated, which is likely to cause the heating device to start and stop frequently; or, when the initial air outlet temperature ≥ the set air outlet temperature, it indicates that the temperature and evaporation rate of the laundry in the drum have reached a saturated state; when any of the above two situations occurs, for the life reliability, safety, and drying effect of the whole machine's components during use, it is necessary to reduce the inlet air temperature limit value, so as to better control the opening and closing of the heating device, without having to control the opening and closing of the heating tube through the automatic temperature limiter, reducing the jumping probability of the manual temperature limiter, and improving the user experience.

[0075] When the electrical parameter < set value, it indicates that the whole machine is in a low-voltage operating state, the heating power is too low, the heat is insufficient, and the drying efficiency is low. Moreover, when the initial air outlet temperature < set air outlet temperature, it indicates that the temperature and evaporation rate of the clothes in the drum have not reached the saturation state, and the heating device will not start and stop frequently. At this time, the original inlet air temperature limit value can be maintained.

[0076] Among them, the process of controlling the start and stop of the heating device according to the inlet air temperature limit value includes: when the inlet air temperature is greater than the maximum value of the inlet air temperature limit value, controlling the heating device to stop heating; when the inlet air temperature is less than the minimum value of the inlet air temperature limit value, controlling the heating device to start heating.

[0077] In an alternative implementation manner of the embodiment of the present application, the laundry treatment device includes a drying air duct 2. The laundry treatment drum 1 includes an air inlet 11 and an air outlet. The drying air duct 2 connects the air inlet 11 and the air outlet. The heating device includes a first heater 3 and a second heater 4. The first heater 3 is arranged in the drying air duct 2, and the second heater 4 is arranged in the laundry treatment drum 1 and at the bottom of the laundry treatment drum 1. At this time, the laundry treatment device is a washing and drying integrated machine. The electrical parameter value of the heating device detected in the dehumidification stage can be only the electrical parameter value of the first heater 3, or the electrical parameter values of both the first heater 3 and the second heater 4. The heating methods of the first heater 3 and the second heater 4 are, for example, electric heating methods.

[0078] Controlling the heating device to be in the heating state includes: controlling both the first heater 3 and the second heater 4 to be in the heating state, so as to generate steam by heating water through the second heater 4 to assist in drying, and at the same time ensuring a certain humidity environment in the drum to prevent the clothes from being damaged due to excessive drying.

[0079] During the heating process of the second heater 4, the water level in the laundry treatment drum 1 is also controlled to be within the set water level range to avoid dry burning of the second heater 4. Since in the drying and dehumidification stage, condensate is also required to dehumidify the air flow, and the condensate will enter the bottom of the laundry treatment drum 1 and cause the water level to rise. Therefore, it is necessary to monitor the water level of the laundry treatment drum 1 at all times, and drain the water when the water level in the laundry treatment drum 1 is higher than the maximum value of the set water level range to avoid wetting the clothes with too high a water level and affecting the drying efficiency. When the water level in the laundry treatment drum 1 is lower than the minimum value of the set water level range, make up water to avoid dry burning of the second heater 4.

[0080] In an alternative implementation, before the drying and dehumidifying stage, a drying temperature-rising stage is also performed. The drying method further includes: in the drying temperature-rising stage, controlling both the first heater 3 and the second heater 4 to be in the heating state. This is because in the drying temperature-rising stage, the clothes to be dried are preheated, and the moisture evaporation in the clothes is not sufficient during this stage. Therefore, the first heater 3 and the second heater 4 can be controlled to heat simultaneously to shorten the temperature-rising time. Also, during the heating process of the second heater 4, it is also necessary to control the water level in the clothes treatment drum 1 within the set water level range.

[0081] In an alternative implementation, the drying method further includes: controlling the second heater 4 to heat at a first heating power in the drying temperature-rising stage, and controlling the second heater 4 to heat at a second heating power in the drying and dehumidifying stage, where: the first heating power > the second heating power. This is because in the drying temperature-rising stage, in order to shorten the temperature-rising time, it is necessary to control the first heater 3 to heat at a relatively high power. In the drying and dehumidifying stage, the first heater 3 heats at a relatively low heating power to maintain the incoming air temperature within the preset incoming air temperature range.

[0082] And / or, controlling the second heater 4 to continuously heat in the drying temperature-rising stage, and controlling the second heater 4 to intermittently heat in the drying and dehumidifying stage. This is because in the drying temperature-rising stage, in order to shorten the temperature-rising time, it is necessary to control the second heater 4 to continuously heat. In the drying and dehumidifying stage, the second heater 4 adopts an intermittent heating method to avoid generating too much steam and affecting the dehumidifying efficiency.

[0083] In other feasible ways, the heating power of the second heater 4 in the drying temperature-rising stage is higher than that in the drying and dehumidifying stage, so as to shorten the temperature-rising time in the drying temperature-rising stage and reduce the steam generation rate in the drying and dehumidifying stage to ensure the dehumidifying effect.

[0084] In an alternative implementation, in the drying and dehumidifying stage, the outlet air humidity of the clothes treatment drum 1 is also acquired, and the start-stop states of the first heater 3 and the second heater 4 are controlled according to the outlet air humidity.

[0085] Specifically, when the outlet air humidity > the first set humidity, it indicates that the humidity inside the drum is relatively high. At this time, control the first heater 3 to maintain the heating state and control the second heater 4 to turn off, so as to avoid the steam generated by the heating of the second heater 4 from further increasing the humidity. It is necessary to preferentially use the first heater 3 to increase the air flow temperature to accelerate the discharge of moisture.

[0086] And / or, when the second set humidity ≤ the outlet air humidity ≤ the first set humidity, it indicates that the humidity inside the drum is moderate. At this time, control the first heater 3 to adjust the heating power according to the outlet air temperature of the laundry drum 1, that is, heat at a higher heating power when the outlet air temperature is less than the set outlet air humidity, and heat at a lower heating power when the outlet air temperature is greater than or equal to the set outlet air humidity, so as to improve the dehumidification efficiency. At the same time, control the second heater 4 to heat intermittently according to a preset rhythm, for example, heat for three minutes and stop for one minute, so as to keep the humidity inside the drum within a suitable range, prevent the fibers of the clothes from hardening, and ensure the drying effect.

[0087] And / or, when the outlet air humidity is greater than < the second set humidity, it indicates that the humidity inside the drum is low and the clothes are in a dry state. At this time, control the first heater 3 to turn off, and control the second heater 4 to continue heating for a set duration to achieve steam care for the clothes and improve the drying effect of the clothes. After the heating time of the second heater 4 reaches the set duration, enter the drying and cooling stage, turn off the second heater 4, and the drying ends after meeting the door opening condition of the laundry equipment.

[0088] In an optional implementation manner, before entering the drying process, the clothes material is also determined, and the regulation strategies of the first heater 3 and the second heater 4 in the dehumidification stage are determined according to the clothes material. The regulation strategies include the heating time of the first heater and the second heater, and for clothes materials with higher water absorption, the heating time of the first heater and the second heater in the drying and dehumidification stage is longer; and / or, the regulation strategies include the heating power of the first heater and the second heater, and for clothes materials with higher water absorption, the heating power of the first heater and the second heater in the drying and dehumidification stage is greater. This is because, for clothes materials with higher water absorption, higher temperature and humidity are required during the drying process. Therefore, the heating time of the first heater 3 and the second heater 4 in the drying and dehumidification stage is longer, and / or the heating power is greater.

[0089] In this embodiment, during the drying process, by controlling the second heating device to heat continuously or intermittently, an appropriate amount of hot and humid air flow is provided inside the drum, which improves the heat transfer efficiency inside the drum to a certain extent. Because moisture can be used as a carrier of heat, helping the heat to be more evenly distributed inside the drum, enabling all parts of the clothes to be heated more quickly and evenly, thus shortening the overall drying time; and, when drying some thick and dense clothes, pure hot air is difficult to penetrate into the interior of the clothes, resulting in the outer layer being dry while the inner layer still has moisture. Increasing an appropriate amount of hot and humid air flow can better penetrate into the interior of the clothes fibers, carry out the moisture, and enable the clothes to be fully dried from the inside out, improving the uniformity and thoroughness of drying; in addition, appropriately providing hot and humid air during the drying process can keep the clothes at a certain moisture content, avoid over-drying, thus better protecting the texture and performance of the clothes, while reducing the generation of static electricity, making the dried clothes cleaner and easier to handle.

[0090] In practical applications, the amount of humid steam generated by heating water by the second heating device can be controlled by controlling the heating duration, heating power, and / or heating rhythm of the second heating device during the drying process, so as to obtain the best drying effect.

[0091] In the above embodiments of the present application, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. The steps shown in the relevant flowcharts can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here. In other words, the step order described in the foregoing embodiments is only an example, and a reasonable adjustment of the step order based on the content of the embodiments of the present application is also within the protection scope of the embodiments of the present application.

[0092] In a specific implementation of the embodiments of the present application, referring to Figure 4 the flowchart of, the clothing drying method includes the following processing procedures:

[0093] S401. Enter the drying program;

[0094] S402. Obtain the air outlet temperature T;

[0095] S403. Enter the drying temperature rising stage;

[0096] S404. Control the water level in the clothing treatment cylinder 1 within the set water level frequency range, and at the same time turn on the first heater 3 and the second heater 4;

[0097] S405. When the inlet air temperature reaches the preset temperature, exit the drying temperature rising stage and enter the drying and dehumidifying stage;

[0098] S406. Detect the working voltage U;

[0099] S407. Judge whether U≥U 设定 ? If the judgment result is yes, enter S410; if the judgment result is no, enter S408;

[0100] S408. Judge whether T≥T 设定 ? If the judgment result is yes, enter S410; if the judgment result is no, enter S409

[0101] S409. The inlet air temperature limit value is the second temperature limit value, and the start and stop of the first heater 3 and the second heater 4 are controlled according to the second temperature limit value;

[0102] S410. The inlet air temperature limit is the first temperature limit, and the start and stop of the first heater 3 and the second heater 4 are controlled according to the second temperature limit, where the first temperature limit < the second temperature limit;

[0103] S411. Detect the outlet air humidity RH;

[0104] S412. Determine whether RH≥RH 设定 ? If the determination result is yes, return to S406; if the determination result is no, enter S413;

[0105] S413. Turn off the first heater 3, and the second heater 4 continues to heat for a set duration. During the heating process of the second heater 4, control the water temperature to be T 水温预设 ;

[0106] S414. After the second heater 4 has heated for the set duration, enter the cooling stage;

[0107] S415. Turn off the second heater 4. After the temperature inside the drum drops to meet the door opening condition, end the drying. Where: WL1 is the set water level frequency range, WL1 ∈ [40KHz, 41.5Khz]; U 预设 ∈ [230℃, 240℃]; T ∈ [35℃, 40℃]; T 预设 ∈ [45℃, 60℃]; the first temperature limit ∈ [90℃, 100℃]; T 水温预设 ∈ [80℃, 95℃]; RH 设定 ∈ [0, 10%].

[0108] Generally speaking, in this embodiment, by detecting the electrical parameters of the heating device during the drying and dehumidifying stage, and combining the initial outlet air temperature before the drying and heating stage to regulate the start and stop strategy of the heating device, so as to avoid the frequent start and stop of the heating device during the heating process from affecting the drying effect. In addition, this embodiment also combines the first heater 3 for heating the air flow and the second heater 4 for heating the water, and cooperatively regulates the start and stop states, heating power, etc. of the first heater 3 and the second heater 4 according to aspects such as the drying stage, the temperature and / or humidity inside the drum, and the material of the dried clothes, so as to obtain the optimal drying effect.

[0109] The embodiment of the present application provides a control device, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the drying method provided in the first aspect of the embodiment of the present application.

[0110] Specifically, as Figure 5As shown in the figure, 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. Among them, the communication bus 200 is configured to implement connection communication between these components. Among them, 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. Among them, a drying method for a laundry treatment device is stored in the memory 500. Among them, the processor 100 is configured to adopt the above method when executing the drying method for the laundry treatment device stored in the memory 500.

[0111] The description of the above control device is similar to the description of the above method embodiment and has similar beneficial effects to the method embodiment. For technical details not disclosed in the control device of the present application, please refer to the description of the method embodiment of the present application for understanding.

[0112] An embodiment of the present application provides a laundry treatment device that adopts the drying method of the laundry treatment device proposed above or includes the control device provided above.

[0113] The laundry treatment device of this embodiment has been introduced in detail in the implementation subject part of the drying method and will not be elaborated here.

[0114] The serial numbers or the order of introduction of the embodiments of the present application are only for description and do not represent the superiority or inferiority of the embodiments.

[0115] In several embodiments provided by the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units can be a logical function division, and there can be other division methods in actual implementation. For example, 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 displayed or discussed mutual coupling, direct coupling, or communication connection can be through some interfaces, and the indirect coupling or communication connection of units or modules can be in an electrical or other form.

[0116] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0117] In addition, in each embodiment of the present application, each functional unit can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0118] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part 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, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. 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 in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). 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. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a digital versatile disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)), etc. It should be noted that the computer-readable storage medium mentioned in the embodiments of the present application can be a non-volatile storage medium, in other words, a non-transitory storage medium.

[0119] 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 for analysis, stored data, displayed data, etc.), and signals involved in the embodiments of the present application are all authorized by the user or fully authorized by all parties, and the collection, use, and processing of relevant data need to comply with the relevant laws, regulations, and standards of 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 embodiments of the present application are all obtained under full authorization.

[0120] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A drying method for a clothes processing device, characterized in that: The laundry processing device comprises a laundry processing drum and a heating device, wherein the heating device is capable of heating the airflow entering the laundry processing drum, and the drying method comprises: In the drying and dehumidification stage, the heating device is controlled to be in a heating state; Acquiring an electrical parameter value of the heating device, and controlling a start / stop strategy of the heating device according to the electrical parameter value and an initial air outlet temperature of the laundry processing drum; Wherein: the initial air outlet temperature is the air outlet temperature of the clothes processing drum before the heating device starts heating; the electrical parameter value includes at least one of the working voltage, working current and working power.

2. The drying method of the clothes processing device according to claim 1, characterized in that: The start and stop strategy of the heating device is controlled according to the electrical parameter value and the initial air outlet temperature of the laundry processing drum, including: adjusting the air inlet temperature limit of the laundry processing drum according to the electrical parameter value and the initial air outlet temperature of the laundry processing drum; The start and stop of the heating device are controlled according to the inlet air temperature limit.

3. The drying method of the clothes processing device according to claim 2, characterized in that: Adjusting the air inlet temperature limit of the laundry processing drum according to the electrical parameter value and the initial air outlet temperature of the laundry processing drum includes: When the electrical parameter value is greater than or equal to the set value, or when the initial air outlet temperature is greater than or equal to the set air outlet temperature, adjusting the air inlet temperature limit value of the laundry processing drum to a first limit value; When the electrical parameter value is less than the set value, and the initial air outlet temperature is less than the set air outlet temperature, the air inlet temperature limit value of the laundry treatment drum is a second limit value; Wherein: the first limit value is smaller than the second limit value.

4. The drying method of the clothes processing device according to any one of claims 1 to 3, characterized in that: The clothes processing device comprises a drying air duct, the clothes processing drum comprises an air inlet and an air outlet, the drying air duct connects the air inlet and the air outlet, the heating device comprises a first heater and a second heater, the first heater is arranged in the drying air duct, and the second heater is arranged in the clothes processing drum and located at the bottom of the clothes processing drum; The controlling the heating device to be in a heating state comprises: The first heater and the second heater are both controlled to be in a heating state, and during the heating process of the second heater, the water level in the laundry processing tub is also controlled to be within a set water level range.

5. The drying method of the clothes processing device according to claim 4, characterized in that: Before the drying and dehumidification stage, a drying and heating stage is also performed, and the drying method further includes: In the drying temperature rising stage, the first heater and the second heater are both controlled to be in a heating state, and during the heating process of the second heater, the water level in the clothing processing drum is also controlled to be within a set water level range.

6. The drying method of the clothes processing device according to claim 5, characterized in that: The drying method also includes: In the drying and heating stage, the second heater is controlled to heat with a first heating power, and in the drying and dehumidifying stage, the second heater is controlled to heat with a second heating power, wherein: the first heating power> the second heating power; And / or, the second heater is controlled to heat continuously in the drying and heating stage, and the second heater is controlled to heat intermittently in the drying and dehumidification stage.

7. The drying method of the clothes processing device according to claim 5, characterized in that: In the drying and dehumidification stage, the humidity of the air outlet of the clothes processing drum is also obtained, and the start and stop states of the first heater and the second heater are controlled according to the humidity of the air outlet.

8. The drying method of the clothes processing device according to claim 7, characterized in that: Controlling the start and stop states of the first heater and the second heater according to the outlet air humidity includes: When the air outlet humidity is greater than the first set humidity, the first heater is controlled to maintain a heating state, and the second heater is controlled to be turned off; and / or, when the second set humidity is ≤ the outlet humidity ≤ the first set humidity, controlling the first heater to adjust the heating power according to the outlet temperature of the laundry processing drum, and controlling the second heater to perform intermittent heating according to a preset rhythm; And / or, when the air outlet humidity is less than the second set humidity, the first heater is controlled to be turned off, and the second heater is controlled to continue heating for a set time period.

9. The drying method of the clothes processing device according to claim 5, characterized in that: Before entering the drying stage, the material of the clothes is also determined, and the control strategy of the first heater and the second heater in the dehumidification stage is determined according to the material of the clothes; The control strategy includes the heating time of the first heater and the second heater, and the higher the water absorption of the clothing material, the longer the heating time of the first heater and the second heater in the drying and dehumidification stage. And / or, the control strategy includes heating powers of the first heater and the second heater, and the higher the water absorbency of the clothing material, the greater the heating powers of the first heater and the second heater in the drying and dehumidification stage.

10. A control device, characterized in that: It includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the drying method according to any one of claims 1 to 9.

11. A clothes processing device, characterized in that: It adopts the drying method of the clothes processing equipment described in any one of claims 1 to 9, or includes the control device described in claim 10.

Images