Control method of laundry treating apparatus and laundry treating apparatus

Abstract

The present application belongs to the field of clothes treatment equipment, and specifically provides a control method of clothes treatment equipment and clothes treatment equipment. The present application aims to solve the problem that the drying effect of the drying air duct of the existing washing and drying integrated machine is deteriorated due to the blockage of lint. For this purpose, the clothes treatment equipment comprises a drying air duct and a drying cylinder, the drying air duct is in communication with the drying cylinder, and a fan and a heating device are arranged in the drying air duct. The control method comprises the following steps: obtaining a variable parameter of the fan during the operation of the drying function; judging the size of the variable parameter and a preset variable parameter threshold of the fan; when the variable parameter is less than the preset variable parameter threshold, controlling the clothes treatment equipment to operate a drying optimization mode. Through the above setting mode, the blockage condition of the drying air duct can be judged in time, and the drying optimization mode is operated in the case that the blockage is relatively serious and further affects the drying effect.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of clothes processing equipment, and particularly provides a control method of clothes processing equipment and clothes processing equipment. BACKGROUND

[0002] With the improvement of economic level and the change of environment, more and more users pay attention to the drum-type washing and drying integrated machine.

[0003] The drying mode of the washing and drying integrated machine is divided into two types of direct discharge type and condensing type. The drying principle of the condensing type washing and drying integrated machine is that the heat exchanger (evaporator and condenser) and the circulating fan are arranged in the drying air duct. The low-temperature and high-humidity air flowing out of the drum is first exchanged with the evaporator to form low-temperature and low-humidity air, and the condensed water is separated out. The low-temperature and low-humidity dry air is heated by the condenser, and the air becomes low-humidity and high-temperature. At this time, the air has strong moisture absorption capacity. The low-temperature and high-humidity air in the drying air duct enters the drum again through the circulating fan, and thus a drying cycle is completed. The process is repeated, and the moisture in the wet clothes is continuously evaporated until the drying requirement is met. The working principle of the direct discharge type is that the air is heated by the heater in the drying air duct, enters the drum to heat the clothes, becomes wet and hot air, and is discharged out of the machine body to form a cycle, which continuously removes the moisture of the clothes to achieve the purpose of drying the clothes.

[0004] However, during the drying process, lint will enter the drying air duct from the inner drum along with the circulating air. With the increase of the drying cycle, the lint will gradually accumulate in various parts of the heat exchanger and the fan impeller. The accumulation of the lint will block the drying air duct, thereby causing the drying function to fail or even causing the machine to malfunction and alarm.

[0005] Therefore, there is a need in the art for a new control method of clothes processing equipment and clothes processing equipment to solve the problem that the drying effect of the existing washing and drying integrated machine is poor due to the blockage of the drying air duct by lint. SUMMARY

[0006] In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that the drying effect of the existing washing and drying integrated machine is poor due to the blockage of the drying air duct by lint, the present application provides a control method of clothes processing equipment, the clothes processing equipment comprising a drying air duct and a drying drum, the drying air duct being in communication with the drying drum, and a fan being arranged in the drying air duct. The control method comprises the following steps: obtaining a variable parameter of the fan during the operation of the drying function; determining the size of the variable parameter and a preset variable parameter threshold value of the fan; and when the variable parameter is less than the preset variable parameter threshold value, controlling the clothes processing equipment to operate in a drying optimization mode, so as to improve the drying effect.

[0007] In the preferred technical scheme of the control method of the laundry treatment apparatus, the step of "controlling the laundry treatment apparatus to run the drying optimization mode" further comprises: controlling the invariable parameter of the blower to increase by ΔCn.

[0008] In the preferred technical scheme of the control method of the laundry treatment apparatus, after the step of "controlling the invariable parameter of the blower to increase by ΔCn", the control method further comprises: judging whether the invariable parameter reaches a permitted maximum value; if yes, controlling the lint cleaning function to be enabled, or controlling the alarm function to be enabled; otherwise, controlling the invariable parameter of the blower to increase by ΔCn.

[0009] In the preferred technical scheme of the control method of the laundry treatment apparatus, the step of "judging the size of the variable parameter and the preset variable parameter threshold of the blower" further comprises: when the variable parameter is greater than or equal to the preset variable parameter threshold, controlling the blower to run according to the current invariable parameter.

[0010] In the preferred technical scheme of the control method of the laundry treatment apparatus, the drying air duct is further provided with a heating device, and the step of "controlling the laundry treatment apparatus to run the drying optimization mode" further comprises: controlling the target temperature of the heating device to decrease by ΔT.

[0011] In the preferred technical scheme of the control method of the laundry treatment apparatus, after the step of "controlling the target temperature of the heating device to decrease by ΔT", the control method further comprises: determining a drying variable parameter threshold based on the target temperature of the heating device after decreasing by ΔT; judging the size of the current variable parameter and the drying variable parameter threshold; when the variable parameter is greater than or equal to the drying variable parameter threshold, controlling the heating device to run according to the current target temperature; when the variable parameter is less than the drying variable parameter threshold, controlling the target temperature of the heating device to decrease by ΔT again.

[0012] In the preferred technical scheme of the control method of the laundry treatment apparatus, after the step of "controlling the target temperature of the heating device to decrease by ΔT again", the control method further comprises: judging whether the drying variable parameter threshold reaches a permitted minimum value; if yes, controlling the lint cleaning function to be enabled, or controlling the alarm function to be enabled; otherwise, controlling the target temperature of the heating device to decrease by ΔT.

[0013] In the preferred technical scheme of the control method of the laundry treatment apparatus, the variable parameter is the blower current / blower power, and the invariable parameter is the blower speed; or the variable parameter is the blower speed, and the invariable parameter is the blower current / blower power.

[0014] In the preferred technical solutions of the control method of the laundry treating apparatus, the preset current / power threshold is determined based on the current value / power corresponding to the factory target fan rotating speed and the dirt blocking degree of the drying air duct; and / or the preset rotating speed threshold is determined based on the rotating speed corresponding to the factory target fan power / current and the dirt blocking degree of the drying air duct.

[0015] The present application also provides a laundry treating apparatus comprising a processor; a memory adapted to store a plurality of program codes adapted to be loaded and run by the processor to execute the control method of the laundry treating apparatus according to any one of the above technical solutions.

[0016] As can be understood by those skilled in the art, in the technical solutions of the present application, the laundry treating apparatus comprises a drying air duct and a drying drum, the drying air duct is in communication with the drying drum, and a fan and a heating device are arranged in the drying air duct. The control method comprises the following steps: obtaining a variable parameter of the fan during the operation of the drying function; determining the size of the variable parameter and a preset variable parameter threshold of the fan; when the variable parameter is less than the preset variable parameter threshold, controlling the laundry treating apparatus to operate a drying optimization mode so as to improve the drying effect.

[0017] The drying air duct of the laundry treating apparatus has the problem of increased air duct resistance due to blockage, which in turn reduces the ventilation volume and deteriorates the drying effect. However, the present application can timely determine the blockage of the drying air duct and operate the drying optimization mode when the blockage is serious and affects the drying effect, so as to improve the drying effect, thereby enabling the machine to operate for a longer period before performing the related lint removal operation. Especially for the laundry treating apparatus without a lint cleaning device, the present application can avoid frequent manual cleaning and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0018] The control method of the laundry treating apparatus and the laundry treating apparatus of the present application will be described below with reference to the accompanying drawings. In the drawings:

[0019] Figure 1 The main flowchart of the control method of the laundry treating apparatus of the present application;

[0020] Figure 2 The relationship between the ventilation resistance of the drying air duct and the fan current when the rotating speed of the fan is constant in the control method of the laundry treating apparatus of the present application;

[0021] Figure 3 The step flowchart of the first more specific embodiment of the laundry treating apparatus of the present application;

[0022] Figure 4 The step flowchart of the second more specific embodiment of the laundry treating apparatus of the present application;

[0023] Figure 5 A third more specific embodiment of the laundry treating apparatus of the present application is shown in the flow chart. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present application will be described herein below with reference to the accompanying drawings. It will be understood by those skilled in the art that these embodiments are merely for the purpose of explaining the technical principles of the present application and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed in order to adapt to specific application occasions. For example, although the variable parameter is described in the specification as current, the present application can obviously employ other various variable parameters, such as power or rotational speed, as long as the variable parameter has the effect of becoming smaller as the degree of blockage in the drying air duct increases.

[0025] To solve the problem of poor drying effect caused by lint blockage in the drying air duct of the existing washer-dryer, the laundry treating apparatus of the present application comprises a drying air duct and a drying drum, the drying air duct is in communication with the drying drum, and a fan and a heating device are arranged in the drying air duct. The drying principle of the present application is similar to that of the background art, and will not be described herein again. In the present application, the structure of the heating device is not limited as long as it can heat air, for example, it can be a condenser or an electric heater, all of which are within the scope of protection of the present application.

[0026] For the purpose of introduction, the laundry treating apparatus of the present application will be described herein below by taking a washer-dryer as an example, as shown in Figure 1 The control method of the washer-dryer of the present application comprises the following steps:

[0027] Step S100: obtaining a variable parameter of the fan during the operation of the drying function.

[0028] The applicant has found that the size of the variable parameter of the fan of the present application is related to the degree of blockage (e.g. caused by lint accumulation) in the drying air duct, i.e. the more serious the degree of blockage in the drying air duct, the greater the ventilation resistance in the drying air duct, and the smaller the variable parameter of the fan. The variable parameter of the fan of the present application can be any one of the current, power or rotational speed of the fan. When the variable parameter of the fan is current or power, the invariable parameter of the fan is the rotational speed of the fan. When the variable parameter of the fan is rotational speed, the invariable parameter of the fan is the current or power of the fan. For example, when the rotational speed of the fan is invariable, the current and power of the fan are variable, and the lint accumulates in the drying air duct, which will make the ventilation resistance of the drying air duct larger and the air flow passing through it smaller, so that the useful work of the fan will decrease, and the current and power will decrease accordingly. The relationship between the ventilation resistance and the current can be seen in Figure 2(experimental diagram); or, when the power or current of the fan is constant, the speed of the fan is variable, and lint accumulates in the drying air duct, the ventilation resistance of the drying air duct becomes large, and the speed of the fan correspondingly becomes small.

[0029] Step S200: judging the size of the variable parameter and the preset variable parameter threshold of the fan.

[0030] Step S300: when the variable parameter is less than the preset variable parameter threshold, controlling the clothes treatment equipment to run the drying optimization mode so as to improve the drying effect.

[0031] In the present application, the preset variable parameter threshold is determined based on the variable parameter corresponding to the target constant parameter at the factory and the degree of dirt blockage in the drying air duct. Specifically, the preset current / power threshold is determined based on the current value / power corresponding to the target fan speed at the factory and the degree of dirt blockage in the drying air duct; and / or the preset speed threshold is determined based on the speed corresponding to the target fan power / current at the factory and the degree of dirt blockage in the drying air duct.

[0032] For ease of introduction, the variable parameter of the present application is taken as an example of current, and the constant parameter is taken as an example of speed.

[0033] When the washing and drying integrated machine leaves the factory, the drying air duct is relatively clean and has no dirt blockage. Therefore, the ventilation resistance caused by the dirt blockage in the drying air duct is almost zero, and the fan speed at the factory can ensure the drying effect. Then, the corresponding factory current value is recorded. The factory current value is related to the type of fan, and the preset current threshold = factory current value x current percentage. That is, the preset current threshold is also related to the type of fan. The specific value of the current percentage is determined by the degree of dirt blockage in the drying air duct. The more serious the degree of dirt blockage that can be allowed, the greater the ventilation resistance, and the smaller the current percentage. Preferably, the preset current threshold is the current value after the ventilation resistance in the drying air duct increases by 60%-80%. At this time, the preset current threshold = factory current value x current percentage corresponding to the current value after the ventilation resistance increases by 60%-80%. The ventilation resistance and the current percentage have a certain corresponding relationship, which is determined by experiment. In addition, the preset current threshold can ensure the drying effect of the washing and drying integrated machine. If the ventilation resistance continues to increase, the drying effect will be difficult to guarantee.

[0034] Since the dirt blocking degree in the drying air duct is more serious, the air duct resistance is greater, and the current value of the fan is smaller, the dirt blocking degree in the drying air duct can be reflected by the size of the current value, that is, the dirt blocking degree in the drying air duct is determined by comparing the current value with the preset current threshold. Specifically, when the current value is less than the preset current threshold, it proves that the dirt blocking degree in the drying air duct is relatively serious and has affected the drying effect of the washer-dryer. At this time, the washer-dryer is controlled to run in the drying optimization mode to improve the drying effect. In the case that the dirt blocking is relatively serious and affects the drying effect, the washer-dryer runs for a longer period and then performs the related optimization operation, for example, for manual removal of lint, the manual cleaning frequency is avoided, and the user experience is improved.

[0035] The above setting mode correlates the preset current threshold with the blocking degree of the lint and determines the preset current threshold according to the type of the fan, so that the preset current threshold is suitable for each different machine, and the inaccurate control of the drying effect caused by the unified setting of the preset current threshold is avoided. For example, if the preset current threshold is set too large, the detected current value is less than the preset current threshold under the premise that the current value can ensure the drying effect, and unnecessary operation steps are caused.

[0036] Specifically, the washer-dryer runs in the drying optimization mode in multiple ways, and the following three specific embodiments are taken as examples for introduction.

[0037] The first embodiment of the washer-dryer running in the drying optimization mode is specifically introduced below.

[0038] First, the speed of the fan is controlled to be increased by ΔCn.

[0039] It can be understood that the above-mentioned speed increase ΔCn means that the speed is a continuously increasing process, and ΔCn is increased each time. After the speed of the fan is increased each time, the size comparison between the current value and the preset current threshold is performed. If the current of the fan is still less than the preset current threshold, it proves that the current speed of the fan cannot guarantee the drying effect, and the speed of the fan is continuously increased by ΔCn. That is, the speed of the fan is increased to increase the ventilation volume of the drying air duct, so as to maintain the original drying state. As a more specific embodiment, when the current speed of the fan corresponds to gear one, the fan current is reduced to below the preset current threshold due to the increase of the resistance of the drying air duct, and it is difficult to guarantee the drying effect. At this time, the speed of the fan is increased to the corresponding gear two to increase the ventilation volume, and then the size comparison between the current of the fan and the preset current threshold is performed again. If the current of the fan is still less than the preset current threshold, it proves that the current speed of the fan cannot guarantee the drying effect, and the speed of the fan is continuously increased to gear three.

[0040] Further, in the process of continuously increasing the fan speed, if the fan current is greater than or equal to the preset current threshold, it proves that the ventilation quantity in the drying air duct at present can guarantee the drying effect, at this time, the fan runs according to the current speed to achieve the effect of reducing the environmental noise of the fan system, in addition, in the process of increasing the fan speed, it is judged whether the fan speed reaches the maximum value allowed, wherein the maximum value allowed for the fan speed can be the highest gear of the fan and / or the highest speed of the fan; if so, it proves that the fan speed reaches the maximum value allowed, and the fan current is still less than the preset current threshold, at this time, the fan speed cannot be further increased, if the lint cleaning device is provided on the washer-dryer, the lint cleaning function is controlled to be enabled to clean the lint, or the alarm function is controlled to be enabled to remind the user to clean the lint, thereby guaranteeing the ventilation quantity of the drying air duct and the drying effect.

[0041] The second embodiment of the washer-dryer running the drying optimization mode will be described in detail below.

[0042] First, the target temperature of the heating device is controlled to be reduced by AT.

[0043] It can be understood that the target temperature reduction AT described above means that the target temperature is a continuously decreasing process, that is, it is decreased by AT each time. When the fan current value is less than the preset current threshold, the ventilation quantity in the drying air duct is less, that is, the hot air quantity discharged into the drying cylinder of the washer-dryer is less, in this case, if the target temperature is still maintained at the original high temperature level, it will cause the temperature in the drying air duct to rise, the local temperature of the heating device to be overheated, and possibly cause the drying function to fail, or even cause machine fault alarm. The present application can reduce the temperature in the drying air duct by reducing the target temperature of the heating device, therefore, with the reduction of the temperature in the drying air duct, in the case of guaranteeing the drying effect, the ventilation quantity can be appropriately reduced, therefore, in the case of reducing the drying temperature, the drying effect can be guaranteed by prolonging the drying time, and fault alarm can be avoided.

[0044] Further, after the target temperature of the heating device is controlled to be reduced by AT, the drying variable parameter threshold is determined based on the target temperature of the heating device after being reduced by AT; the size of the current variable parameter and the drying variable parameter threshold is judged; when the variable parameter is greater than or equal to the drying variable parameter threshold, the heating device is controlled to run according to the current target temperature; when the variable parameter is less than the drying variable parameter threshold, the target temperature of the heating device is controlled to be reduced by AT again.

[0045] Specifically, after the target temperature of the heating device is reduced by △T, the air volume in the drying air duct also has certain requirements, which should not be too low, and at least should be able to ensure that the heat after the target temperature of the heating device is reduced by △T is transported, so that the target temperature of the heating device after being reduced by △T has a corresponding air volume threshold, and the air volume has a certain corresponding relationship with the air resistance (the smaller the air volume, the greater the air resistance), and the method for determining the air resistance through the air volume includes various methods, for example, can be determined through experiments, of course, can also be determined through empirical formula, and then the drying current threshold is determined through the air resistance, wherein the drying current threshold = factory current value x drying current percentage, wherein the air resistance and the drying current percentage have a certain corresponding relationship, and the corresponding relationship is determined through experiments. Therefore, after the target temperature of the heating device is reduced by △T, the current value detected at present needs to be compared with the drying current threshold; one case: if the current value detected at present is greater than or equal to the drying current threshold, it proves that the air volume can transport the heat at present, then the heating device is controlled to run according to the current target temperature, in this case, the target temperature of the heating device is most suitable, neither too high nor too low, which can shorten the drying time as much as possible while ensuring the drying effect; another case: if the current value detected at present is less than the drying current threshold, it proves that the current air volume cannot transport the heat at present, at this time, the target temperature of the heating device is controlled to be reduced by △T again to adapt to the smaller current value detected, so as to ensure the drying effect. It can be understood that in the process of the above-mentioned control method, the machine is always in operation, therefore, with the increase of time, the lint in the drying air duct increases, and the air duct resistance also increases, therefore, the current value detected has a trend of becoming smaller, the control method of the application always detects and judges the current, and then controls relevantly to ensure the drying effect.

[0046] Further, when the current value is less than the drying current threshold, after the target temperature of the heating device is controlled to be reduced by △T again, it is judged whether the drying current threshold reaches the minimum value allowed; yes, the lint cleaning function is controlled to be started, or the alarm function is controlled to be started; otherwise, the target temperature of the heating device is controlled to be reduced by △T.

[0047] When the target temperature of the heating device decreases to a certain extent, at which time the drying current threshold reaches the minimum allowable value, in this case, if the detected current value is still less than the drying current threshold, the drying effect is difficult to guarantee, for example, at this time, the ventilation volume cannot guarantee effective drying of the clothes, in this case, if the laundry dryer is provided with a lint cleaning device, the lint cleaning function is controlled to be enabled to clean the lint, or the alarm function is controlled to be enabled to remind the user to clean the lint, thereby guaranteeing the ventilation volume of the drying air duct and ensuring the drying effect; if the detected current value does not reach the minimum allowable value, at this time, the detected current value is still less than the drying current threshold, which proves that there is still room for the target temperature of the heating device to decrease, and the target temperature of the heating device is controlled to continue to decrease to ensure the drying effect.

[0048] In the third embodiment, the specific embodiments of the drying optimization mode of the above two laundry dryers can be combined.

[0049] That is, after each increase in the fan speed, the current value is compared with the preset current threshold, and if the fan speed reaches the maximum allowable value and the fan current is still less than the preset current threshold, the second embodiment described above is performed. In the case where the laundry dryer does not have a lint cleaning device, this setting allows the laundry dryer to run for the longest period before the alarm is triggered, which avoids frequent manual handling by the user in fast-paced life and improves the convenience of the user and ensures the user experience.

[0050] It can be understood that although the variable parameter of the above fan is described in terms of fan current and the invariable parameter is described in terms of fan speed, the variable parameter and the invariable parameter of the present application can be reasonably replaced, for example, the variable parameter can also be power, and the corresponding invariable parameter is still speed; or the variable parameter is speed, and the invariable parameter is power or current (in this case, the drying optimization mode is run by increasing the power or current of the fan to forcibly increase the fan speed, thereby increasing the ventilation volume and ensuring the drying effect), the principle and effect of drying are the same as those described by taking the variable parameter as current and the invariable parameter as speed, and will not be repeated.

[0051] To sum up, the control method optimizes the drying process by changing the fan parameters. When it is determined that the air resistance in the drying air duct is large and needs to be optimized, the fan speed is increased to maintain the original drying state. If the speed is increased to the maximum value and the original drying state cannot be guaranteed, the control temperature of the heating device is reduced, the drying time is prolonged to ensure the drying effect, and the machine alarm is avoided. If a lint cleaning device is provided on the washer-dryer, the lint cleaning device is used to clean the lint to remove the air resistance in the drying air duct and improve the air volume. If there is no lint cleaning device, the machine will alarm after running for the longest period of time, thereby improving the user experience.

[0052] The following will be described in combination with Figures 3 to 5 The more specific three embodiments of the control method of the washer-dryer will be described.

[0053] As Figure 3 shown, the first more specific embodiment includes the following steps:

[0054] Step S400: Obtain the fan current.

[0055] Step S401: Determine whether A

[0056] Step S402: Increase the speed of the fan.

[0057] Step S403: Determine whether the speed reaches the maximum allowed value. If yes, execute step S404, and if no, execute step S400.

[0058] Step S404: Continue to determine whether A

[0059] Step S405: Control the fan to run at the current speed.

[0060] As Figure 4 shown, the second more specific embodiment includes the following steps:

[0061] Step S500: Obtain the fan current.

[0062] Step S501: Determine whether A

[0063] Step S502: control the heating device temperature to decrease, and determine the drying current threshold A2 based on the decreased target temperature.

[0064] Step S503: continue to acquire the fan current.

[0065] Step S504: judge whether A<A2 is true? If true, execute step S505, if not true, execute step S503.

[0066] Step S505: control the heating device temperature to continue to decrease, and determine the drying current threshold A3 based on the decreased target temperature.

[0067] Step S506: judge whether A<An is true? Wherein, An is the minimum drying current threshold which can guarantee the drying effect, if true, execute step S507.

[0068] Step S507: clean the wire scraps.

[0069] As shown in the third more specific embodiment includes the following steps: Figure 5

[0070] Step S600: acquire the fan current.

[0071] Step S601: judge whether A<A1 is true? Wherein, A is the acquired fan current, A1 is the preset current threshold, if true, execute step S602, if not true, continue to execute step S600.

[0072] Step S602: increase the speed of the fan.

[0073] Step S603: judge whether the speed reaches the allowed maximum value? If yes, execute step S604, if not, execute step S600.

[0074] Step S604: continue to judge whether A<A1 is true? If true, execute step S606, if not true, execute step S605.

[0075] Step S605: control the fan to run at the current speed.

[0076] Step S606: control the heating device temperature to decrease, and determine the drying current threshold A2 based on the decreased target temperature.

[0077] Step S607: continue to acquire the fan current.

[0078] Step S608: judge whether A<A2 is true? If true, execute step S609, if not true, execute step S607.

[0079] ​Step S609: continue to reduce the temperature of the heating device, and determine the drying current threshold A3 based on the reduced target temperature.

[0080] Step S610: determine whether A < An is true, where An is the minimum drying current threshold that can guarantee the drying effect, and if true, execute step S611.

[0081] Step S611: clean the wire scraps.

[0082] It should be noted that the above embodiments are only used to illustrate the principles of the present application, and are not intended to limit the protection scope of the present application. Those skilled in the art can adjust the above structure without deviating from the principles of the present application, so that the present application can be applied to more specific application scenarios.

[0083] Although the above embodiments are described in the above order, those skilled in the art can understand that, in order to achieve the effects of the embodiments, the different steps do not have to be executed in such an order, and can be executed simultaneously (in parallel) or in a reversed order. These simple changes are within the protection scope of the present application.

[0084] In addition, the present application also provides a laundry treatment device, comprising: a processor; a memory, the memory being adapted to store a plurality of program codes, the program codes being adapted to be loaded and run by the processor to execute the control method of the laundry treatment device described in any of the above embodiments.

[0085] After the laundry treatment device executes the above control method, if the drying air duct is blocked by wire scraps and the drying effect is affected, and the machine is provided with a wire scrap cleaning device, the wire scrap cleaning function can be executed, and if the device is not provided, the machine can only alarm after the longest cycle is run, thereby improving the user experience.

[0086] Finally, it should be noted that although the present application is described by taking a washer-dryer as an example, the laundry treatment device of the present application can obviously also be applied to other devices capable of drying. For example, the laundry treatment device can also be applied to a clothes dryer, etc.

[0087] Those skilled in the art can understand that the above washer-dryer also includes some other known structures, such as a processor, a controller, a memory, etc. The memory includes but is not limited to a random access memory, a flash memory, a read-only memory, a programmable read-only memory, a volatile memory, a non-volatile memory, a serial memory, a parallel memory, or a register, etc. The processor includes but is not limited to a CPLD / FPGA, a DSP, an ARM processor, a MIPS processor, etc. In order not to unnecessarily obscure the embodiments of the present disclosure, these known structures are not shown in the drawings.

[0088] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after these changes or replacements will all fall within the protection scope of the present application.

Claims

1. A control method for a garment processing device, characterized in that, The garment processing equipment includes a drying duct and a drying drum. The drying duct is connected to the drying drum. A fan and a heating device are installed inside the drying duct. The control method includes the following steps: During the operation of the drying function, the variable parameters of the fan are acquired; Determine the magnitude of the variable parameter relative to the preset variable parameter threshold of the wind turbine; When the variable parameter is less than the preset variable parameter threshold, the clothing processing equipment is controlled to run a drying optimization mode in order to improve the drying effect; The step of "controlling the clothing processing equipment to operate in the drying optimization mode" further includes: Control the target temperature of the heating device to decrease by ΔT; After the step of "controlling the target temperature of the heating device to decrease by ΔT", the control method further includes: The threshold of the drying variable parameter is determined based on the target temperature after the heating device reduces ΔT. Determine the current values ​​of the variable parameter and the drying variable parameter threshold; When the variable parameter is greater than or equal to the drying variable parameter threshold, the heating device is controlled to operate at the current target temperature; When the variable parameter is less than the drying variable parameter threshold, the target temperature of the heating device is controlled to decrease again by ΔT.

2. The control method for the garment processing equipment according to claim 1, characterized in that, The step of "controlling the clothing processing equipment to operate in the drying optimization mode" further includes: The constant parameter of the fan is increased by ΔCn.

3. The control method for the garment processing equipment according to claim 2, characterized in that, After the step of "increasing the constant parameter of the fan by ΔCn", the control method further includes: Determine whether the invariant parameter has reached the maximum allowed value; Yes, then the lint cleaning function or the alarm function will be enabled. Otherwise, control the constant parameter to increase ΔCn.

4. The control method for the garment processing equipment according to claim 2, characterized in that, The step of "determining the magnitude of the variable parameter and the preset variable parameter threshold of the wind turbine" further includes: When the variable parameter is greater than or equal to the preset variable parameter threshold, the fan is controlled to operate according to the current constant parameter.

5. The control method for the garment processing equipment according to claim 1, characterized in that, After the step of "controlling the target temperature of the heating device to decrease again by ΔT", the control method further includes: Determine whether the threshold value of the drying variable parameter has reached the minimum allowable value; Yes, then the lint cleaning function or the alarm function will be enabled. Otherwise, the target temperature of the heating device is reduced by ΔT.

6. The control method for the garment processing equipment according to claim 2, characterized in that, The variable parameter is the fan current / fan power, and the constant parameter is the fan speed; or The variable parameter is the fan speed, and the constant parameter is the fan current / fan power.

7. The control method for the garment processing equipment according to claim 6, characterized in that, The preset current / power threshold is determined based on the current / power value corresponding to the factory target fan speed and the degree of dirt and blockage in the drying duct; and / or The preset speed threshold is determined based on the speed corresponding to the factory-set target fan power / current and the degree of dirt and blockage in the drying duct.

8. A garment processing device, characterized in that, include: processor; A memory adapted to store a plurality of program codes, the program codes being loaded and run by the processor to perform the control method of the garment handling apparatus according to any one of claims 1 to 7.

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