CN116556033A

CN116556033A - Clothes drying method and clothes drying equipment

Info

Publication number: CN116556033A
Application number: CN202310525772.6A
Authority: CN
Inventors: 杨瑞华; 王其建; 汪庆波; 张新新
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-08-08

Abstract

According to the scheme, whether the clothes drying parameters meet preset conditions or not is determined by acquiring the clothes drying parameters, if the clothes drying parameters meet the preset conditions, the clothes in the roller are wet, more hot air is required to enter the roller to ensure heat exchange in the drying process, and therefore the driving motor is controlled to operate in a first mode, namely the inversion time of the driving motor is short, so that the heat exchange in the drying process is ensured; if the clothes drying parameters do not meet the preset conditions, the clothes in the roller are dry, and the requirement for hot air quantity is reduced at the moment, so that the driving motor is controlled to operate in a second mode, namely the inversion time of the driving motor is longer, the inversion time of the roller is prolonged, the entangled clothes can be fully opened, and the clothes drying uniformity is improved. The driving motor is controlled to operate in different modes in stages, so that the heat exchange effect in the drying process can be considered, the clothes are prevented from being entangled, and the drying uniformity of the clothes is improved.

Description

Clothes drying method and clothes drying equipment

Technical Field

The application relates to the technical field of clothes drying, in particular to a clothes drying method and clothes drying equipment.

Background

At present, the roller and the fan of the roller type clothes dryer are controlled by the same motor, the roller and the fan are respectively connected to the motor output shaft, and when the motor drives the roller to rotate, the fan rotates along with the roller to provide stable circulating air quantity for the clothes dryer, so that the continuous and efficient drying process can be ensured. However, if the motor runs unidirectionally all the time, the roller rotates unidirectionally, and clothes in the roller overturn unidirectionally all the time, so that mutual winding and knotting of the clothes are easy to occur, the drying effect is affected, and clothes are not dried or are dried unevenly.

In order to solve the problem of poor clothes drying effect, it is proposed to arrange a motor to rotate in two directions, but under the reverse rotation of the motor, the output air quantity of a fan can be obviously reduced, if the reverse rotation time of the motor is longer, the heat exchange in the drying process can be influenced, and the clothes can not be dried uniformly; if the reverse rotation time of the motor is short, the clothes are still easy to be entangled, and uneven drying is caused.

Disclosure of Invention

In order to solve the problem of uneven clothes drying, the application provides a clothes drying method and a related device.

According to an aspect of the embodiments of the present application, a clothes drying method is disclosed, applied to clothes drying equipment, the clothes drying equipment includes a driving motor, a roller and a circulating fan, an output shaft of the driving motor is connected with the roller and the circulating fan, and is used for driving the roller and the circulating fan to rotate, and the circulating fan is used for driving air in the roller to flow, and the method includes:

Acquiring clothes drying parameters and determining whether the clothes drying parameters meet preset conditions;

if the clothes drying parameters meet preset conditions, controlling the driving motor to operate in a first mode;

if the clothes drying parameters do not meet preset conditions, controlling the driving motor to operate in a second mode;

and when the clothes drying parameters meet preset conditions, the humidity of clothes in the roller is larger than that of clothes in the roller when the clothes drying parameters do not meet preset conditions, and the positive and negative rotation time ratio of the driving motor in the second mode is smaller than that of the driving motor in the first mode.

In an exemplary embodiment, the reverse rotation speed of the driving motor is greater than the positive rotation speed in both the first mode and the second mode, and the reverse rotation speed of the driving motor is smaller than the reverse rotation speed of the driving motor in the first mode.

In an exemplary embodiment, the acquiring the laundry drying parameter and determining whether the laundry drying parameter meets a preset condition includes:

acquiring at least one of a drying program running time, an exhaust temperature, a return air temperature and a clothes humidity value, wherein the drying program running time, the exhaust temperature, the return air temperature and the clothes humidity value are respectively used as a judgment parameter, the return air temperature is the air outlet temperature of the roller, the exhaust temperature is the heat exchanger temperature at the outlet of a heat pump system, the heat pump system heats the air outlet of the roller and then outputs the heated air to the roller and sends the heated air into the roller through the circulating fan, and the clothes humidity value is the humidity of clothes in the roller;

Judging whether the judging parameters accord with preset conditions or not;

if any judging parameter meets the preset condition, determining that the clothes drying parameter meets the preset condition, and if all judging parameters do not meet the preset condition, determining that the clothes drying parameter does not meet the preset condition.

In an exemplary embodiment, when the laundry drying parameter includes a drying program operation time, determining whether the determination parameter meets a preset condition includes:

comparing the running time of the drying program with a preset running time;

judging that the running time of the drying program accords with a preset condition if the running time of the drying program is below the preset running time, and judging that the running time of the drying program does not accord with the preset condition if the running time of the drying program is above the preset running time;

when the clothes drying parameters comprise exhaust temperature or return air temperature, judging whether the judging parameters accord with preset conditions or not, wherein the clothes drying parameters comprise:

comparing the exhaust temperature or the return air temperature with a preset temperature;

if the exhaust temperature or the return air temperature is lower than the preset temperature, judging that the exhaust temperature or the return air temperature meets the preset condition, and if the exhaust temperature or the return air temperature reaches above the preset temperature, judging that the exhaust temperature or the return air temperature does not meet the preset condition;

When the clothes drying parameters comprise clothes humidity values, judging whether the judging parameters accord with preset conditions or not, wherein the clothes drying parameters comprise:

comparing the clothes humidity value with a preset humidity value;

if the clothes humidity value reaches above the preset humidity value, judging that the clothes humidity value meets the preset condition, and if the clothes humidity value is below the preset humidity value, judging that the clothes humidity value does not meet the preset condition.

In an exemplary embodiment, before acquiring the laundry drying parameter and determining whether the laundry drying parameter meets a preset condition, the method further includes a rotation speed determining step including:

acquiring the weight of the laundry in the drum;

and determining a forward rotation speed and a reverse rotation speed of the driving motor in the first mode and the second mode according to the laundry weight, wherein the forward rotation speed and the reverse rotation speed are positively correlated to the laundry weight.

In an exemplary embodiment, the method further includes a drying step including:

acquiring a clothes humidity value of clothes in the drum within a preset time period;

if the humidity values of the clothes at all times in the preset time period are below the target humidity value, judging that the clothes are dried, and ending the drying program;

If the humidity value of the clothes at any time in the preset time period reaches above the target humidity value, judging that the clothes are not dried, and continuing to operate a drying program.

if the clothes humidity value at any time in the preset time period reaches above the target humidity value, acquiring a return air temperature and an air suction temperature, wherein the return air temperature is the air outlet temperature of the roller, the air suction temperature is the heat exchanger temperature at the inlet of a heat pump system, and the heat pump system heats the air outlet of the roller, outputs the heated air and sends the heated air into the roller through the circulating fan;

calculating the return air temperature increase rate and the temperature difference value between the return air temperature and the air suction temperature, and if the return air temperature increase rate reaches more than a preset increase rate and/or the temperature difference value reaches more than a preset difference value, judging that the clothes are dried, and ending the drying program; otherwise, judging that the clothes are not dried, and continuing to operate the drying program.

According to an aspect of the embodiment of the application, a clothes drying control device is disclosed, set up in clothes drying equipment, clothes drying equipment includes driving motor, cylinder and circulating fan, driving motor's output shaft the cylinder with circulating fan is used for driving the cylinder with circulating fan rotates, circulating fan is used for driving air flow in the cylinder, clothes drying control device includes:

the processing module is used for acquiring clothes drying parameters and determining whether the clothes drying parameters meet preset conditions or not;

the control module is used for controlling the driving motor to operate in a first mode under the condition that the clothes drying parameters meet preset conditions, and controlling the driving motor to operate in a second mode under the condition that the clothes drying parameters do not meet preset conditions; and when the clothes drying parameters meet preset conditions, the humidity of clothes in the roller is larger than that of clothes in the roller when the clothes drying parameters do not meet preset conditions, and the positive and negative rotation time ratio of the driving motor in the second mode is smaller than that of the driving motor in the first mode.

According to an aspect of an embodiment of the present application, a laundry drying apparatus is disclosed, the laundry drying apparatus comprising a drum, a circulation fan, a driving motor, one or more processors, and a memory, wherein the circulation fan is used for driving air in the drum to flow; the output shaft of the driving motor is connected with the roller and the circulating fan and is used for driving the roller and the circulating fan to rotate; the memory is used for storing one or more programs, which when executed by the one or more processors, cause the clothes drying apparatus to implement the aforementioned method.

According to an aspect of embodiments of the present application, a computer-readable storage medium is disclosed, which stores computer-readable instructions that, when executed by a processor of a computer, cause the computer to perform the aforementioned method.

The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:

according to the technical scheme, the clothes drying parameters are obtained, whether the clothes drying parameters meet the preset conditions is determined, if the clothes drying parameters meet the preset conditions, the clothes in the roller are wet, more hot air is required to enter the roller to ensure heat exchange in the drying process, and therefore the driving motor is controlled to operate in a first mode, namely the inversion time of the driving motor is short, so that heat exchange in the drying process is ensured; if the clothes drying parameters do not meet the preset conditions, the clothes in the roller are dry, and the requirement for hot air quantity is reduced at the moment, so that the driving motor is controlled to operate in a second mode, namely the inversion time of the driving motor is longer, the inversion time of the roller is prolonged, the entangled clothes can be fully opened, and the clothes drying uniformity is improved. The application can give consideration to the heat exchange effect in the drying process well and prevent clothes from winding by controlling the driving motor to operate different modes in stages, so that the drying uniformity of clothes is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

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

Fig. 1 shows a flow chart of a related art laundry drying method;

fig. 2 is a schematic view showing a partial constitution of a clothes drying apparatus according to an embodiment of the present application;

fig. 3 illustrates a schematic view of a wind circulation-related structure of a laundry drying apparatus according to an embodiment of the present application;

FIG. 4 illustrates a flow chart of a method of laundry drying according to one embodiment of the present application;

FIG. 5 is a detailed flow chart corresponding to step S410 of FIG. 4 in one embodiment;

FIG. 6 is a detailed flow chart corresponding to step S430 shown in FIG. 4, according to one embodiment;

FIG. 7 is a detailed flowchart corresponding to step S430 shown in FIG. 4 according to another embodiment;

FIG. 8 illustrates a flow chart of a method of laundry drying according to one embodiment of the present application;

fig. 9 shows a block diagram of a laundry drying control apparatus according to an embodiment of the present application;

fig. 10 shows a schematic diagram of a computer system suitable for use in implementing the electronic device of the embodiments of the present application.

The reference numerals are explained as follows:

101. a case; 102. a front panel; 103. a door body; 104. a circulating air duct; 105. a circulating fan; 106. a roller; 107. a driving motor; 108. an evaporator; 109. a condenser; 110. a compressor; 111. a throttle device.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

When the roller and the circulating fan are controlled by the same driving motor, in order to prevent clothes from winding, in the related art, the driving motor is configured to rotate bidirectionally, and the forward-reverse rotation time ratio of the driving motor is a fixed value in the whole operation process of the drying program. The applicant found that if the reverse rotation time is short (for example, the forward and reverse rotation time ratio is 60:1), the agglomerated clothes cannot be opened due to the short reverse rotation time, and the clothes still can be entangled, so that the clothes are dried unevenly; if the configuration reverse rotation time is long (for example, the forward and reverse rotation time ratio is 1:1), the output air quantity of the circulating fan can be obviously reduced when the driving motor rotates reversely, the air quantity of hot air entering the roller is small, the air fluidity in the roller is poor, the heat exchange effect is poor, and the clothes can not be dried uniformly. For the clothes drying equipment configured with the heat pump system for carrying out heat exchange on the air outlet of the roller, as the air quantity of the hot air entering the roller is small, the vapor in the clothes cannot be evaporated into gas, and the vapor enters the compressor of the heat pump system to produce liquid impact on the compressor, so that the compressor works abnormally, and the reliability problem of the heat pump system can be caused, and meanwhile, the clothes are not dried.

Referring to fig. 1, fig. 1 shows a flow chart of a clothes drying method in the prior art, as shown in fig. 1, in the running process of the whole drying program, the forward and reverse rotation speed ratio of a driving motor is fixed to be R1 to R2, the forward and reverse rotation time ratio is fixed to be t1 to t2, and no matter whether the forward and reverse rotation time ratio t1 to t2 is set to be larger or smaller, the problem of uneven clothes drying exists. In the process of running the drying program, detecting the humidity of the clothes in the drum, judging that the clothes are dried when the humidity value of the clothes is smaller than the humidity value h1, ending the drying program, wherein misjudgment easily occurs in the drying judgment logic, particularly in the case of winding of the clothes, the humidity sensor only detects the surface humidity of the clothes, but the inside of the clothes cannot be detected, so that the clothes are misjudged to be dried under the condition of not drying the clothes, and the problem of uneven drying of the clothes is also caused.

Therefore, the application provides a clothes drying method and a related device for improving clothes drying uniformity.

The clothes drying method and the related device provided by the application are described in detail below with reference to the specific embodiments.

Fig. 2 is a schematic view showing a partial constitution of a clothes drying apparatus according to an embodiment of the present application; fig. 3 illustrates a schematic view of a wind circulation-related structure of a laundry drying apparatus according to an embodiment of the present application.

As shown in fig. 2 and 3, the laundry drying apparatus includes a cabinet 101, a front panel 102, a door 103, a circulation duct 104, a circulation fan 105, a drum 106, a driving motor 107, a heat pump system, and a controller (not shown).

Wherein, the housing 101 is formed therein with a housing space for accommodating the circulating air duct 104, the drum 106, the driving motor 107, the heat pump system, the controller and the like.

The front panel 102 is disposed at the front side of the cabinet 101, and a laundry inlet (not shown) is provided on the front panel 102, and communicates with the drum 106. When the laundry loading opening is opened, a user may load laundry to be dried into the drum 106 via the laundry loading opening, or take out the dried laundry from the drum 106.

The door body 103 is provided at one side of the laundry putting opening and hinged with the front panel 102, and the laundry putting opening is opened or closed by rotating the door body 103.

The drum 106 is rotatably provided in the cabinet 101, and when laundry is to be dried, the drum 106 is driven to rotate, so that the laundry is sufficiently contacted with hot air introduced into the drum 106 by the drum 106, thereby achieving rapid drying of the laundry.

The circulation air duct 104 has an air inlet and an air outlet, the air outlet of the circulation air duct 104 is communicated with the air inlet of the roller 106, so that hot air in the circulation air duct 104 can enter the roller 106, and the air inlet of the circulation air duct 104 is communicated with the air outlet of the heat pump system.

The circulating fan 105 is arranged in the circulating air duct 104, and the circulating fan 105 can drive dry hot air in the circulating air duct 104 to enter the roller 106 through an air outlet of the circulating air duct 104, and simultaneously drive air in the roller 106 to flow, so that air after absorbing water of clothes is discharged out of the roller 106, the air discharged out of the roller 106 enters the heat pump system through an air inlet of the heat pump system to exchange heat, and hot air is formed and then flows to the air inlet of the circulating air duct 104 through an air outlet of the heat pump system, so that the hot air returns to the circulating air duct 104.

The output shaft of the driving motor 107 is connected with the roller 106 and the circulating fan 105, and the driving motor 107 is used for driving the roller 106 and the circulating fan 105 to rotate. The rotation direction and rotation speed of the driving motor 107 are adjustable, so that the rotation direction and rotation speed of the drum 106 and the circulation fan 105 are adjusted, when the driving motor 107 rotates forward (e.g., rotates clockwise), the drum 106 and the circulation fan 105 both rotate forward, and when the driving motor 107 rotates backward (e.g., rotates counterclockwise), the drum 106 and the circulation fan 105 both rotate backward.

The heat pump system comprises an evaporator 108, a condenser 109, a compressor 110 and a throttling device 111, wherein the evaporator 108, the compressor 110, the condenser 109 and the throttling device 111 are connected through pipelines which provide a passage for the flow of heat exchanger (refrigerant) in the heat pump system. When the compressor 110 is operated, the heat exchange agent is fed into the condenser 109 to perform exothermic condensation, then enters the evaporator 108 through the throttling device 111 to perform endothermic evaporation, and then returns to the compressor 110; the air discharged from the drum 106 is cooled by the evaporator 108 and then flows to the condenser 109, and the heat discharged from the condenser 109 can heat the flowing air, so that hot air is formed, and the formed hot air enters the circulating air duct 104.

The controller is used to control the operation of the various components of the laundry drying appliance, such as the drive motor 107, the circulation blower 105, the heat pump system, etc.

It should be noted that, in some embodiments, other devices that can heat air may be used instead of the heat pump system to generate hot air, for example, an electric heating device, etc.

Fig. 4 shows a flowchart of a laundry drying method according to an embodiment of the present application, which may be performed by the laundry drying appliance, in particular by a controller of the laundry drying appliance. Referring to fig. 4, the laundry drying method at least includes steps S410 to S430, and is described in detail as follows:

in step S410, a laundry drying parameter is obtained, and it is determined whether the laundry drying parameter meets a preset condition. If the clothes drying parameters meet the preset conditions, the step S420a is carried out; if the laundry drying parameters do not meet the preset conditions, step S420b is performed.

Wherein, when the clothes drying parameter accords with the preset condition, the humidity of the clothes in the roller is larger than the humidity of the clothes in the roller when the clothes drying parameter does not accord with the preset condition, namely, when the clothes drying parameter accords with the preset condition, the clothes in the roller are wet, and when the clothes drying parameter does not accord with the preset condition, the clothes in the roller are dry.

The clothes drying parameter may be at least one of a drying program running time, an exhaust temperature, a return air temperature and a clothes humidity value, and specifically may be any one of a drying program running time, an exhaust temperature, a return air temperature and a clothes humidity value, or any two of them, or any three of them, or all of them.

The longer the running time of the drying program, i.e. the longer the drying time of the clothes in the drum, more water vapor in the clothes can be taken away, and the humidity of the clothes in the drum becomes smaller, so the running time of the drying program can be used as a judging parameter of the humidity of the clothes.

The return air temperature is the air outlet temperature of the roller. When the humidity of clothes in the roller is high, the air return temperature is low due to the fact that more water vapor in the roller is mixed with hot air; when the humidity of the clothes in the drum is small, the air return temperature becomes high because the water vapor mixed with the hot air in the drum becomes small, so the air return temperature can be used as a judging parameter of the humidity of the clothes.

The exhaust temperature is the heat exchanger temperature at the outlet of the heat pump system, i.e. the heat exchanger temperature at the outlet of the compressor. When the humidity of clothes in the roller is high, the temperature of return air is low due to the fact that more water vapor in the roller is mixed with hot air, so that more heat is taken away when the return air exchanges heat with the heat pump system, and the temperature of a heat exchanger is reduced; when the humidity of clothes in the roller is smaller, as the water vapor mixed with hot air in the roller is reduced, the return air temperature is increased, so that less heat is taken away when the return air exchanges heat with the heat pump system, and the temperature of the heat exchanger is increased, therefore, the exhaust temperature can be used as a judging parameter of the humidity of the clothes.

It should be noted that, in some embodiments, the temperature of the hot air entering the circulation duct may also be directly measured as the exhaust temperature.

In one embodiment of the present application, in step S410, determining whether the laundry drying parameter meets the preset condition includes: judging whether the judging parameters meet preset conditions, if any judging parameter meets the preset conditions, determining that the clothes drying parameters meet the preset conditions, and if all judging parameters do not meet the preset conditions, determining that the clothes drying parameters do not meet the preset conditions.

When any judging parameter meets the preset condition, namely, the clothes drying parameter is determined to meet the preset condition, the phenomenon that the clothes are not in a drier state can be prevented from being misjudged, and the driving motor is ensured to operate in a proper mode, so that uneven clothes drying or water vapor entering the compressor to generate liquid impact on the compressor is prevented.

In detail, when the laundry drying parameter includes a drying program running time, determining whether the determining parameter meets a preset condition includes: comparing the running time of the drying program with the preset running time; if the running time of the drying program is less than the preset running time, judging that the running time of the drying program meets the preset condition, and if the running time of the drying program is more than the preset running time, judging that the running time of the drying program does not meet the preset condition.

The preset operation time is flexibly configured according to the actual operation condition of the clothes drying equipment, and illustratively, the total duration of the whole drying program is 90 minutes, the preset operation time is 70 minutes, the operation time of the drying program is judged to be in accordance with the preset condition before the operation time of the drying program reaches 70 minutes, and the operation time of the drying program is judged to be not in accordance with the preset condition after the operation time of the drying program reaches 70 minutes.

When the clothes drying parameters comprise exhaust temperature, judging whether the judging parameters accord with preset conditions or not, comprising: comparing the exhaust temperature with a preset temperature; if the exhaust temperature is below the preset temperature, judging that the exhaust temperature meets the preset condition, and if the exhaust temperature reaches above the preset temperature, judging that the exhaust temperature does not meet the preset condition.

Wherein the preset temperature is flexibly configured according to the actual operation condition of the clothes drying apparatus, and is, for example, 55 ℃.

When the clothes drying parameters comprise the return air temperature, judging whether the judging parameters accord with preset conditions or not, comprising the following steps: comparing the return air temperature with a preset temperature; if the return air temperature is lower than the preset temperature, judging that the return air temperature meets the preset condition, and if the return air temperature reaches above the preset temperature, judging that the return air temperature does not meet the preset condition.

Wherein the preset temperature is flexibly configured according to the actual operation condition of the clothes drying apparatus, and is, for example, 50 ℃.

When the clothes drying parameters comprise clothes humidity values, judging whether the judging parameters accord with preset conditions or not, wherein the clothes drying parameters comprise: comparing the humidity value of the clothes with a preset humidity value; if the clothes humidity value reaches above the preset humidity value, judging that the clothes humidity value meets the preset condition, and if the clothes humidity value is below the preset humidity value, judging that the clothes humidity value does not meet the preset condition.

The preset humidity value is flexibly configured according to the actual running condition of the clothes drying equipment, and the preset humidity value corresponds to 15% of the water content of clothes.

As shown in fig. 5, in one embodiment of the present application, step S410 includes steps S510 to S530, which are described in detail below:

in step S510, four judgment parameters of the drying program running time T, the exhaust temperature T1, the return air temperature T2 and the laundry humidity value h are obtained.

In step S520, it is determined whether the operation time T of the drying program is less than or equal to the preset operation time T0 or the exhaust temperature T1 is less than or equal to the preset temperature T10 or the return air temperature T2 is less than or equal to the preset temperature T20 or the laundry humidity value h is more than or equal to the preset humidity value h0, if yes (i.e. one or more than one determination parameters are satisfied), step S530a is performed; otherwise (i.e., none of the judgment parameters is satisfied), the process proceeds to step S530b.

In step S530a, it is determined that the laundry drying parameter meets the preset condition.

In step S530b, it is determined that the laundry drying parameter does not meet the preset condition.

Of course, the flowchart shown in fig. 5 is only one embodiment of the step S410 of the present application, and in other embodiments, the step S410 is not limited to the steps shown in fig. 5.

In step S420a, the driving motor is controlled to operate in a first mode.

In step S420b, the driving motor is controlled to operate in the second mode. Then, the process advances to step S430.

The forward and reverse rotation time ratio of the driving motor in the second mode is smaller than that of the driving motor in the first mode, namely, the reverse rotation time of the driving motor in the second mode is longer, and the reverse rotation time of the driving motor in the first mode is shorter.

The clothes drying parameters meet preset conditions, namely that the clothes in the roller are wet, more hot air is required to enter the roller to ensure heat exchange in the drying process, so that the driving motor is controlled to operate in a first mode, namely the inversion time of the driving motor is shorter, and the heat exchange in the drying process is ensured; if the clothes drying parameters do not meet the preset conditions, the clothes in the roller are dry, and the requirement for hot air quantity is reduced at the moment, so that the driving motor is controlled to operate in a second mode, namely the inversion time of the driving motor is longer, the inversion time of the roller is prolonged, the entangled clothes can be fully opened, and the clothes drying uniformity is improved. That is, by controlling the driving motor to operate different modes in stages, the heat exchange effect in the drying process can be well considered, the clothes are prevented from being entangled, and the drying uniformity of the clothes is improved.

Illustratively, in the first mode, the forward/reverse rotation time ratio of the driving motor is 5 min/30 s; in the second mode, the forward/reverse rotation time ratio of the driving motor is 4 min/1 min.

In this application an embodiment, driving motor's reversal speed is all greater than positive rotational speed under first mode and second mode, driving motor under reverse rotation, and the output amount of wind of driving the fan can obviously decline, consequently increases driving motor's reversal speed to the output amount of wind when increasing driving motor reversal makes more hot-blast in the circulation wind channel can get into the cylinder and participate in the heat exchange, thereby takes away the steam in the clothing, is favorable to the clothing stoving even, and heat pump system's operation is also more reliable.

In one embodiment of the present application, the reverse speed of the drive motor in the second mode is less than the reverse speed of the drive motor in the first mode. When the clothes in the roller are wet, the reversing speed of the driving motor is set to be high, the output air quantity when the driving motor reverses is increased, and when the clothes in the roller are dry, the reversing speed of the driving motor is properly reduced, so that the energy consumption of the driving motor can be saved, the electric energy is saved, and meanwhile, the problem of box vibration caused by high rotating speed of the driving motor is solved.

Illustratively, in the first mode, the forward speed of the drive motor is 2500rpm and the reverse speed is 2800rpm; in the second mode, the forward rotation speed of the driving motor is 2500rpm, and the reverse rotation speed is 2700rpm.

Illustratively, in the first mode, the forward/reverse rotation time ratio of the drive motor is 5 min/30 s, the forward rotation speed of the drive motor is 2500rpm, and the reverse rotation speed is 2800rpm; in the second mode, the forward/reverse rotation time ratio of the driving motor is 4 min/1 min, the forward rotation speed of the driving motor is 2500rpm, and the reverse rotation speed is 2700rpm.

In one embodiment of the present application, the forward rotation speed and the reverse rotation speed of the driving motor in the first mode and the second mode are determined according to the laundry weight in the drum. Specifically, before step S410 is performed, the following steps are performed: acquiring the weight of clothes in the drum; the forward rotation speed and the reverse rotation speed of the driving motor in the first mode and the second mode are determined according to the laundry weight. Since the greater the weight of the laundry in the drum, the greater the wind resistance, and the smaller the weight of the laundry in the drum, the wind resistance is also the smaller, in this embodiment, the forward rotation speed and the reverse rotation speed are configured to be positively correlated with the weight of the laundry, so that the rotation speed of the driving motor is adapted to the actual demand.

In step S430, it is determined whether the laundry is dried. If the clothes are judged to be dried, the drying program is ended, and if the clothes are judged to be not dried, the drying program is continuously operated.

As shown in fig. 6, in one embodiment of the present application, step S430 includes steps S610 to S630, which are described in detail below:

in step S610, a laundry humidity value h of laundry in the drum for a preset period tn is acquired.

In detail, a humidity sensor may be provided on a sidewall of the drum or an air outlet of the drum, and a laundry humidity value is detected by the humidity sensor, thereby achieving acquisition of the laundry humidity value h of laundry in the drum within a preset time period tn.

In step S620, it is determined whether the laundry humidity value h at all times within the preset time period tn is less than or equal to the target humidity value h1, if yes, step S630 is entered; otherwise (i.e. at least one moment when the humidity value h of the clothes is greater than the target humidity value h 1), judging that the clothes are not dried, and continuing to operate the drying program.

In step S630, it is determined that the laundry has been dried, and the drying process is ended.

The preset time period tn is flexibly configured according to the actual operation condition of the clothes drying equipment, and is illustratively 3 minutes. The target humidity value h1 is flexibly configured according to the actual operation condition of the clothes drying device, and the target humidity value h1 is exemplified by the water content of clothes being 0% -1%.

In the embodiment shown in fig. 6, by increasing the number of humidity detections in a given period of time, only if the detected humidity value of the laundry at all times in the given period of time is less than or equal to the target humidity value, it is determined that the laundry is dried, and the humidity value of the laundry at any time is greater than the target humidity value, and it is determined that the laundry is not dried, it is possible to prevent erroneous determination that the laundry is dried in the case that the laundry is not dried, and to prevent uneven drying of the laundry due to detection errors of the humidity sensor or local aggregation of the laundry.

As shown in fig. 7, in one embodiment of the present application, step S430 includes steps S710 to S750, which are described in detail below:

in step S710, a laundry humidity value h of laundry in the drum for a preset period tn is acquired.

In step S720, it is determined whether the laundry humidity value h at all times within the preset time period tn is less than or equal to the target humidity value h1, if yes, step S730a is entered; otherwise (i.e., there is at least one moment when the laundry humidity value h is greater than the target humidity value h 1), step S730b is performed.

In step S730a, it is determined that the laundry has been dried, and the drying process is ended.

In step S730b, the return air temperature and the suction air temperature are obtained, and the process proceeds to step S740.

In step S740, the return air temperature increase rate L and the temperature difference Δt between the return air temperature and the suction air temperature are calculated.

Wherein, the return air temperature is the air-out temperature of cylinder. When the humidity of the clothes in the roller is high, the return air temperature is low, when the humidity of the clothes in the roller is low, the return air temperature becomes high, and the rising speed of the return air temperature is faster and faster, so that the return air temperature increasing rate L is gradually increased. Therefore, the return air temperature increase rate L can be used as a clothes drying judging condition.

The suction temperature is the heat exchanger temperature at the inlet of the heat pump system, i.e. at the inlet of the compressor. When the humidity of clothes in the drum is high, the air suction temperature is almost equal to the return air temperature, namely, the temperature difference delta T between the return air temperature and the air suction temperature is small. The configuration air suction temperature gradually decreases along with the drying of clothes, the return air temperature gradually increases, the temperature difference delta T is larger and larger, and finally the maximum value is reached. Therefore, the temperature difference deltat between the return air temperature and the suction air temperature can be used as the drying condition of the clothes.

In step S750, it is determined whether the return air temperature increase rate L is greater than or equal to a preset increase rate L0 or the temperature difference Δt between the return air temperature and the intake air temperature is greater than or equal to a preset difference T3, if yes (i.e., one or both of them are satisfied), step S730a is entered; otherwise (i.e. none of them is satisfied), it is determined that the laundry is not dried, and the drying program is continued to be operated.

Wherein the preset increasing rate L0 is flexibly configured according to the actual operation condition of the clothes drying apparatus, and the preset increasing rate L0 is an increase in temperature by 5 ℃ within 3 min. The preset difference T3 is also flexibly configured according to the actual operation of the laundry drying apparatus, and the preset difference T3 is, for example, 20 ℃.

In the embodiment shown in fig. 7, unlike the embodiment shown in fig. 6, if the laundry humidity value h at all times within the preset time period tn is not equal to or less than the target humidity value h1, further performing the temperature detection judging logic can prevent inaccurate laundry humidity detection caused by the influence of the humidity voltage due to the fluctuation of the power grid of the humidity sensor, and prevent excessive drying of the laundry due to erroneous judgment of not drying the laundry in the case that the laundry is dried.

Fig. 8 is a flowchart of a clothes drying method according to an embodiment of the present application, and referring to fig. 8, the clothes drying method at least includes steps S810 to S840, which are described in detail as follows:

in step S810, four judgment parameters of the drying program running time T, the exhaust temperature T1, the return air temperature T2 and the clothes humidity value h are obtained, whether the drying program running time T is less than or equal to a preset running time T0 or the exhaust temperature T1 is less than or equal to a preset temperature T10 or the return air temperature T2 is less than or equal to a preset temperature T20 or the clothes humidity value h is more than or equal to a preset humidity value h0 is judged, if yes (namely, one judgment parameter or more than one judgment parameter is met), step S820a is entered; otherwise (i.e., none of the judgment parameters is satisfied), the process proceeds to step S820b.

In step S820a, the driving motor is controlled to operate in a first mode.

In step S820b, the driving motor is controlled to operate in the second mode.

In step S830, a laundry humidity value h of the laundry in the drum in a preset time period tn is obtained, and whether the laundry humidity value h at all times in the preset time period tn is less than or equal to a target humidity value h1 is determined, if yes, step S840a is entered; otherwise (i.e., there is at least one moment when the laundry humidity value h is greater than the target humidity value h 1), step S840b is performed.

In step S840a, it is determined that the laundry has been dried, and the drying process is ended.

In step S840b, the return air temperature and the suction air temperature are obtained, and the return air temperature increasing rate L and the temperature difference Δt between the return air temperature and the suction air temperature are calculated, and then it is determined whether the return air temperature increasing rate L is greater than or equal to the preset increasing rate L0 or the temperature difference Δt between the return air temperature and the suction air temperature is greater than or equal to the preset difference T3, if yes (i.e. one or both of them are satisfied), step S840a is entered; otherwise (i.e., none of them is satisfied), it is determined that the laundry is not dried, and the process returns to step S830, and the drying process is continued.

Corresponding to the embodiment of the clothes drying method, the application also provides a clothes drying control device.

Referring to fig. 9, fig. 9 illustrates a block diagram of a laundry drying control apparatus according to an embodiment of the present application, which may be applied to a controller of a laundry drying appliance, to perform all or part of the steps of the laundry drying method illustrated in any one of fig. 4 to 8. As shown in fig. 9, the apparatus 900 includes, but is not limited to: a processing module 901 and a control module 902.

The processing module 901 is configured to obtain a laundry drying parameter, and determine whether the laundry drying parameter meets a preset condition.

The control module 902 is configured to control the driving motor to operate in a first mode when the laundry drying parameter meets a preset condition, and control the driving motor to operate in a second mode when the laundry drying parameter does not meet the preset condition.

The forward/reverse rotation time ratio of the driving motor in the second mode is smaller than that of the driving motor in the first mode, that is, the reverse rotation time of the driving motor in the second mode is longer, and the reverse rotation time of the driving motor in the first mode is shorter.

In some embodiments of the present application, based on the foregoing, the reverse rotation speed of the driving motor is greater than the positive rotation speed in both the first mode and the second mode, and the reverse rotation speed of the driving motor is smaller than the reverse rotation speed of the driving motor in the first mode.

In some embodiments of the present application, based on the foregoing aspects, the processing module 901 is configured to obtain at least one of a drying program running time, an exhaust temperature, a return air temperature, and a laundry humidity value, where the drying program running time, the exhaust temperature, the return air temperature, and the laundry humidity value are respectively used as a judgment parameter; judging whether the judging parameters accord with preset conditions or not; if any judging parameter accords with the preset condition, determining that the clothes drying parameter accords with the preset condition, and if all judging parameters do not accord with the preset condition, determining that the clothes drying parameter does not accord with the preset condition.

In some embodiments of the present application, based on the foregoing aspects, the processing module 901 is configured to compare the drying program operation time with the preset operation time when the laundry drying parameter includes the drying program operation time; if the running time of the drying program is less than the preset running time, judging that the running time of the drying program meets the preset conditions, and if the running time of the drying program is more than the preset running time, judging that the running time of the drying program does not meet the preset conditions; when the clothes drying parameters comprise exhaust temperature or return air temperature, comparing the exhaust temperature or the return air temperature with a preset temperature; if the exhaust temperature or the return air temperature is lower than the preset temperature, judging that the exhaust temperature or the return air temperature meets the preset condition, and if the exhaust temperature or the return air temperature reaches above the preset temperature, judging that the exhaust temperature or the return air temperature does not meet the preset condition; when the clothes drying parameters comprise clothes humidity values, comparing the clothes humidity values with preset humidity values; if the clothes humidity value reaches above the preset humidity value, judging that the clothes humidity value meets the preset condition, and if the clothes humidity value is below the preset humidity value, judging that the clothes humidity value does not meet the preset condition.

In some embodiments of the present application, based on the foregoing, the apparatus 900 further includes a rotation speed determining module 903, where the rotation speed determining module 903 is configured to obtain a weight of laundry in the drum; and determining a forward rotation speed and a reverse rotation speed of the driving motor in the first mode and the second mode according to the laundry weight. Wherein the forward rotation speed and the reverse rotation speed are positively correlated with the laundry weight.

In some embodiments of the present application, based on the foregoing solution, the apparatus 900 further includes a drying module 904, where the drying module 904 is configured to obtain a laundry humidity value of laundry in the drum within a preset period of time; if the humidity values of the clothes at all times in the preset time period are below the target humidity value, judging that the clothes are dried, and ending the drying program; if the humidity value of the clothes at any time within the preset time period reaches above the target humidity value, judging that the clothes are not dried, and continuing to operate the drying program.

In some embodiments of the present application, based on the foregoing solution, the apparatus 900 further includes a drying module 904, where the drying module 904 is configured to obtain a laundry humidity value of laundry in the drum within a preset period of time; if the humidity values of the clothes at all times in the preset time period are below the target humidity value, judging that the clothes are dried, and ending the drying program; if the humidity value of the clothes at any time in the preset time period reaches above the target humidity value, acquiring the return air temperature and the air suction temperature, calculating the return air temperature increase rate and the temperature difference value between the return air temperature and the air suction temperature, and if the return air temperature increase rate reaches above the preset increase rate and/or the temperature difference value reaches above the preset difference value, judging that the clothes are dried, and ending the drying program; otherwise, the clothes are not dried, so that the drying program can be continuously operated.

The implementation process of the functions and roles of each module in the above-mentioned apparatus 900 is specifically shown in the implementation process of the corresponding steps in the above-mentioned clothes drying method, and will not be described herein again.

Corresponding to the foregoing laundry drying method embodiments, the present application further provides an electronic device, which may be applied in a laundry drying apparatus, for example, a controller of the laundry drying apparatus, to perform all or part of the steps of the laundry drying method shown in fig. 4 to 8.

It should be noted that, the computer system 1000 of the electronic device shown in fig. 10 is only an example, and should not impose any limitation on the functions and the application scope of the embodiments of the present application.

As shown in fig. 10, the computer system 1000 includes a central processing unit (Central Processing Unit, CPU) 1001 which can perform various appropriate actions and processes, such as performing the method in the above-described embodiment, according to a program stored in a Read-Only Memory (ROM) 1002 or a program loaded from a storage section 1008 into a random access Memory (Random Access Memory, RAM) 1003. In the RAM 1003, various programs and data required for system operation are also stored. The CPU 1001, ROM 1002, and RAM 1003 are connected to each other by a bus 1004. An Input/Output (I/O) interface 1005 is also connected to bus 1004.

The following components are connected to the I/O interface 1005: an input section 1006 including a keyboard, a mouse, and the like; an output portion 1007 including a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crystal Display, LCD), and a speaker; a storage portion 1008 including a hard disk or the like; and a communication section 1009 including a network interface card such as a LAN (Local Area Network ) card, a modem, or the like. The communication section 1009 performs communication processing via a network such as the internet. The drive 1010 is also connected to the I/O interface 1005 as needed. A removable medium 1011, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like, is installed as needed in the drive 1010, so that a computer program read out therefrom is installed as needed in the storage section 1008.

In particular, according to embodiments of the present application, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising a computer program for performing the method shown in the flowchart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication portion 1009, and/or installed from the removable medium 1011. When executed by a Central Processing Unit (CPU) 1001, the computer program performs various functions defined in the system of the present application.

It should be noted that, the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash Memory, an optical fiber, a portable compact disc read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present application, however, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with a computer-readable computer program embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Where each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units involved in the embodiments of the present application may be implemented by means of software, or may be implemented by means of hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.

As another aspect, the present application also provides a computer-readable medium that may be contained in the electronic device described in the above embodiment; or may exist alone without being incorporated into the electronic device. The computer-readable medium carries one or more programs which, when executed by one of the electronic devices, cause the electronic device to implement the methods of the above-described embodiments.

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit, in accordance with embodiments of the present application. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a usb disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a touch terminal, or a network device, etc.) to perform the method according to the embodiments of the present application.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains.

It is to be understood that the present application is not limited to the precise construction set forth above and shown in the drawings, and that various modifications and changes may be effected therein without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. The utility model provides a clothing drying method, is applied to in the clothing drying equipment, its characterized in that, clothing drying equipment includes driving motor, cylinder and circulation fan, driving motor's output shaft connect the cylinder with circulation fan is used for driving the cylinder with circulation fan rotates, circulation fan is used for driving the air flow in the cylinder, the method includes:

2. The method of claim 1, wherein a reverse speed of the drive motor is greater than a positive rotational speed in both the first mode and the second mode, and wherein the reverse speed of the drive motor is less than the reverse speed of the drive motor in the first mode.

3. The method according to claim 1 or 2, wherein the acquiring laundry drying parameters and determining whether the laundry drying parameters meet a preset condition comprises:

Judging whether the judging parameters accord with preset conditions or not;

4. The method of claim 3, wherein when the laundry drying parameter includes a drying program running time, determining whether the determination parameter meets a preset condition comprises:

comparing the running time of the drying program with a preset running time;

comparing the clothes humidity value with a preset humidity value;

5. The method according to claim 1 or 2, wherein before acquiring the laundry drying parameter and determining whether the laundry drying parameter meets a preset condition, the method further comprises:

acquiring the weight of the laundry in the drum;

and determining a forward rotation speed and a reverse rotation speed of the driving motor in the first mode and the second mode according to the laundry weight, wherein the forward rotation speed and the reverse rotation speed are positively related to the laundry weight.

6. The method according to claim 1 or 2, characterized in that the method further comprises:

7. The method according to claim 1 or 2, characterized in that the method further comprises:

8. The utility model provides a clothing stoving controlling means, its characterized in that sets up in clothing drying equipment, clothing drying equipment includes driving motor, cylinder and circulating fan, driving motor's output shaft the cylinder with circulating fan is used for driving the cylinder with circulating fan rotates, circulating fan is used for driving the air flow in the cylinder, clothing stoving controlling means includes:

9. A clothes drying apparatus, comprising:

a roller;

the circulating fan is used for driving air in the roller to flow;

the output shaft of the driving motor is connected with the roller and the circulating fan and is used for driving the roller and the circulating fan to rotate;

one or more processors;

a memory for storing one or more programs that, when executed by the one or more processors, cause the laundry drying appliance to implement the method of any of claims 1 to 7.

10. A computer readable storage medium storing computer readable instructions which, when executed by a processor of a computer, cause the computer to perform the method of any one of claims 1 to 7.