Clothes dryer and control method thereof

Abstract

The application provides a clothes dryer and a control method thereof. The control method comprises: obtaining a material of clothes in an inner drum; determining a target drying mode from a plurality of drying modes according to the material of the clothes, the heating assembly and / or the heat pump assembly being controlled to work in different drying modes; and controlling the clothes in the inner drum to be dried in the target drying mode. By configuring different drying modes for different materials of clothes, the clothes can be dried specifically, the problem of wrinkles or low drying efficiency caused by the same drying mode for different clothes can be reduced, the overall energy consumption of the clothes dryer can be reduced, and the user experience can be improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of clothes drying machines, and particularly relates to a clothes drying machine and a control method thereof. BACKGROUND

[0002] The clothes drying machine can dry clothes, and the clothes dried by the clothes drying machine do not need to be aired, which can save the waiting time of a user, and therefore, the clothes drying machine has been widely concerned by the user. The water-cooled clothes drying machine, or the electric heating clothes drying machine, has a high drying temperature, which can easily cause large wrinkles of the clothes. The heat pump clothes drying machine can realize low-temperature drying of the clothes, but the temperature rising rate is slow, and the heat pump clothes drying machine cannot meet the drying requirements of different clothes.

[0003] Therefore, how to meet the drying requirements of different clothes is a problem to be solved. SUMMARY

[0004] The embodiments of the application provide a clothes drying machine and a control method thereof. The drying mode of the clothes drying machine is improved, and the drying requirements of different clothes can be met, so that the user's use satisfaction is improved.

[0005] The embodiments of the application provide a control method of a clothes drying machine. The clothes drying machine comprises an inner drum, a heating assembly and a heat pump assembly. The inner drum is used for carrying clothes. The heating assembly and the heat pump assembly can exchange heat with the clothes in the inner drum. The control method comprises the following steps.

[0006] Obtaining the material of the clothes in the inner drum;

[0007] Determining a target drying mode from a plurality of drying modes according to the material of the clothes. The heating assembly and / or the heat pump assembly are controlled to work in different drying modes.

[0008] Controlling the clothes in the inner drum to be dried in the target drying mode.

[0009] Optionally, if the material of the clothes is protein fiber, a first target drying mode is determined from a plurality of drying modes. In the first target drying mode, the heat pump assembly is controlled to work.

[0010] If the material of the clothes is down and bulky clothes, a second target drying mode is determined from a plurality of drying modes. In the second target drying mode, the heating assembly is controlled to work for a set time length, and then the heat pump assembly is controlled to work.

[0011] If the material of the clothes is blended, a third target drying mode is determined from a plurality of drying modes. In the third target drying mode, the heating assembly and the heat pump assembly are controlled to work simultaneously.

[0012] Optionally, the target drying mode is determined from a plurality of drying modes according to the material of the clothes, and the heating assembly and / or the heat pump assembly are controlled to work in different drying modes, and the control method further comprises:

[0013] acquiring the humidity in the inner drum;

[0014] adjusting the target drying mode according to the humidity to obtain an adjusted target drying mode, and adjusting the working time or the working frequency of the heating assembly and / or the heat pump assembly according to the humidity in the adjusted target drying mode.

[0015] Optionally, the target drying mode is determined from a plurality of drying modes according to the material of the clothes, and the heating assembly and / or the heat pump assembly are controlled to work in different drying modes, and the control method further comprises:

[0016] determining the target drying mode from a plurality of drying modes according to the material of the clothes;

[0017] applying the target drying mode in a target sub-stage of a plurality of sub-stages in a drying stage;

[0018] adopting different drying modes for drying clothes in the remaining sub-stages of the plurality of sub-stages.

[0019] Optionally, the heating assembly comprises a fan, and the clothes dryer further comprises a drying air duct pipe, and the fan is arranged in the drying air duct pipe; the heat pump assembly comprises a compressor;

[0020] If the material of the clothes is protein fiber, a first target drying mode is determined from a plurality of drying modes, and in the first target drying mode, the heat pump assembly is controlled to work, which comprises:

[0021] in the first target drying mode, the compressor is controlled to run, and the fan is controlled to work at a first rotating speed.

[0022] Optionally, after the compressor is controlled to run and the fan is controlled to work at the first rotating speed in the first target drying mode, the control method further comprises:

[0023] acquiring the inlet air temperature of the inner drum and the drum temperature in the inner drum;

[0024] adjusting the running frequency of the compressor according to the inlet air temperature and the drum temperature, and the difference between the inlet air temperature and the drum temperature is positively correlated with the running frequency of the compressor.

[0025] Optionally, the clothes dryer comprises a drying air duct, the heating assembly comprises a fan and a heating element arranged in the drying air duct, and the heat pump assembly comprises a compressor;

[0026] If the clothes material is a down jacket, a second target drying mode is determined from a plurality of drying modes, in the second target drying mode, after the heating assembly is controlled to work for a set time length, the heat pump assembly is controlled to work, and the method comprises the following steps of:

[0027] In the second target drying mode, the heating element is controlled to work, and the fan is controlled to operate at a second rotating speed to send the air heated by the heating element into the inner drum;

[0028] The drum-in temperature in the inner drum is obtained;

[0029] When the drum-in temperature reaches a set temperature, the heating element is turned off, the compressor is turned on, and the fan is controlled to operate at a third rotating speed; the third rotating speed is greater than the second rotating speed.

[0030] Optionally, the control method further comprises the following steps of:

[0031] In the last sub-stage of the plurality of sub-stages in the drying stage, the compressor is turned off, the heating element is controlled to work, and the fan is controlled to operate at the third rotating speed;

[0032] The air inlet temperature of the inner drum is obtained;

[0033] The start-stop of the heating element is controlled according to the air inlet temperature, that is, the heating element is turned off at a first temperature and turned on at a second temperature;

[0034] When the running time of the last sub-stage is greater than or equal to a set time length, the heating element is turned off.

[0035] Optionally, the clothes dryer comprises a drying air duct, the heating assembly comprises a fan and a heating element arranged in the drying air duct, and the heat pump assembly comprises a compressor;

[0036] If the clothes material is a blended fabric, a third target drying mode is determined from a plurality of drying modes, in the third target drying mode, the heating assembly and the heat pump assembly are controlled to work at the same time, and the method comprises the following steps of:

[0037] In the third target drying mode, the compressor and the heating element are controlled to work, and the fan is controlled to work at a third rotating speed to perform double heat exchange with the clothes in the inner drum.

[0038] The application further provides a clothes dryer, which comprises:

[0039] an inner drum for carrying clothes;

[0040] A drying air duct pipe is arranged above the inner cylinder.

[0041] A heating assembly includes a fan and a heating element arranged in the drying air duct pipe, and is used for heat exchange with the inner cylinder to dry clothes in the inner cylinder.

[0042] A heat pump assembly includes a compressor, and is used for heat exchange with the inner cylinder to dry clothes in the inner cylinder.

[0043] A processor is electrically connected with the fan, the heating element and the compressor respectively, and is used for executing the control method of the clothes dryer according to any one of the above.

[0044] In the clothes dryer and the control method thereof provided by the embodiments of the present application, different drying modes are configured for different clothes materials, so that the clothes can be dried specifically, the problems of clothes wrinkles and low drying efficiency caused by the same drying mode for different clothes can be reduced, the energy consumption of the clothes dryer as a whole can be reduced, and the user experience can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0046] In order to more completely understand the present application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference numerals represent the same parts.

[0047] Figure 1 The first flowchart of the control method of the clothes dryer provided by the embodiments of the present application.

[0048] Figure 2 The second flowchart of the control method of the clothes dryer provided by the embodiments of the present application.

[0049] Figure 3 The structure diagram of the control device of the clothes dryer provided by the embodiments of the present application.

[0050] Figure 4 The structure diagram of the clothes dryer provided by the embodiments of the present application.

[0051] Figure 5 The structure diagram of the first angle of part of the clothes dryer provided by the embodiments of the present application.

[0052] Figure 6 Fig. 2 is a structural diagram of a second angle of some parts of the clothes dryer according to an embodiment of the present application.

[0053] Figure 7 Fig. 1 is a structural diagram of the clothes dryer according to an embodiment of the present application. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0055] To meet the drying needs of different clothes, the present application provides a clothes dryer and a control method thereof, which will be described below with reference to the drawings.

[0056] The clothes dryer can be in the form of a drum, for example, the clothes dryer includes an inner drum, a heating assembly and a heat pump assembly. Of course, the clothes dryer can also include other components such as a display panel, a motor (not shown in the figure), etc., which are not specifically limited here.

[0057] The inner drum is used to carry clothes, and can include lifting ribs. When the inner drum rotates, the clothes are lifted to the highest position by the lifting ribs, which can help to turn over and evenly spread the clothes, so as to evenly dry the clothes.

[0058] The heating assembly can include a heating element and a fan. The heating element is in the form of a heating tube or a heating wire, and is used to heat air. The fan is used to send the heated air into the inner drum through an air inlet of the inner drum. The hot air exchanges heat with the clothes in the inner drum, and the humid hot air is discharged through an air outlet of the inner drum. In this way, the moisture in the clothes is continuously discharged to dry the clothes. The clothes dryer also includes a drying air duct pipe arranged above the inner drum. The heating element and the fan are arranged in the drying air duct pipe. The inner drum has an air inlet and an air outlet, both of which are in communication with the drying air duct pipe. The heating assembly also includes a condensing element arranged at a position corresponding to the air outlet to condense and recover the humid hot air from the air outlet of the inner drum.

[0059] The heat pump assembly can be arranged below the inner cylinder, which can lower the center of gravity of the clothes dryer, thereby improving the stability of the clothes dryer. For example, the heat pump assembly includes a shell and a compressor, a condenser, an evaporator and an expansion valve arranged in the shell. Through the continuous completion of the thermodynamic cycle of evaporation (absorbing heat from the environment), compression, condensation (releasing heat), throttling and re-evaporation of the liquid working medium (refrigerant or coolant), the heat in the environment is transferred to the water. The process of the heat pump assembly for drying is as follows: the hot air generated by the heat pump assembly enters the inner cylinder through the air inlet, exchanges heat with the clothes in the inner cylinder, becomes humid hot air, and then enters the heat pump assembly through the air outlet. Condensed water is formed in the heat pump assembly and discharged. This process is repeated to continuously remove moisture from the clothes, thereby achieving drying of the clothes.

[0060] It can be understood that the clothes dryer of the embodiment of the present application includes two sets of drying systems, each of which can dry clothes, and the two sets of drying systems can also work together to adapt to the drying needs of different clothes and improve the drying efficiency.

[0061] The control method of the clothes dryer will be described below.

[0062] Please refer to Figure 1 Figure 1 The first flowchart of the control method of the clothes dryer provided by the embodiment of the present application.

[0063] 101, Obtain the material of the clothes in the inner cylinder.

[0064] Before the drying program starts, in order to classify and dry different clothes materials, that is, to use different drying modes, the material of the clothes in the inner cylinder needs to be obtained first, and then different drying modes are formulated for different clothes materials.

[0065] There are many ways to obtain the material of the clothes in the inner cylinder, such as setting a camera at the entrance of the inner cylinder, taking pictures of the clothes, and comparing the clothes material types with the pre-stored clothes material types through the processor to determine the clothes material. Among them, if the clothes put in at one time have multiple material types, the material type with the highest frequency is determined as the material of the clothes in the inner cylinder this time. Or set a drying mode for mixed material clothes. For example, a scanner gun can be arranged at the entrance of the inner cylinder to obtain the material of the clothes by scanning the label on the clothes. For example, the user can select a drying program to determine the material of the clothes in the inner cylinder through the drying program. It can be understood that the clothes dryer usually has multiple drying programs, such as wool drying, large piece drying, down drying, mixed drying, etc. Through the user's selection of the drying program, the material of the clothes in the inner cylinder can be determined. Of course, the way to obtain the material of the clothes in the inner cylinder is not limited to the above-mentioned ways, and the above-mentioned is only used for illustration, but should not be understood as a limitation on obtaining the material of the clothes. ​

[0066] 102. Determine a target drying mode from the plurality of drying modes according to the material of the clothes, and control the heating assembly and / or the heat pump assembly to work in different drying modes.

[0067] Different clothes materials, if the same drying mode is used, such as using the heating assembly and the condenser to cooperate to dry, due to the high drying temperature, it is easy to cause the clothes to have large wrinkles; for example, using the heat pump assembly to dry, although the temperature is relatively gentle, but due to the slow heating rate, it leads to low drying efficiency of the clothes, especially large clothes.

[0068] Therefore, in order to reduce the above situation, the embodiment of the present application determines a target drying mode from a plurality of drying modes according to the material of the clothes, and controls the heating assembly and / or the heat pump assembly to work in different drying modes, that is, for each type of clothes material, configure a suitable drying mode, for example, for clothes materials that can withstand high temperatures, the heating assembly can be controlled to dry to improve drying efficiency; for example, for protein clothes that are prone to wrinkles, the heat pump assembly can be controlled to dry to reduce the generation of clothes wrinkles; for example, for blended clothes, the heating assembly and the heat pump assembly can be controlled to work in sequence or simultaneously.

[0069] The drying mode can be set in advance for different clothes materials, and after the type of clothes in the inner drum is determined, the drying program is started, and the corresponding drying mode can be performed for the specific clothes material.

[0070] 103. Control the clothes in the inner drum to be dried in the target drying mode.

[0071] The drying machine can store a mapping table of a plurality of drying modes corresponding to different clothes materials, and after the clothes material is determined, the corresponding target drying mode can be selected from the mapping table, and then the clothes in the inner drum are controlled to be dried in the target drying mode, that is, the heat pump assembly and / or the heating assembly are controlled to work.

[0072] Among different drying modes, for example, when the heat pump assembly works to dry, the heating assembly such as a fan can also be controlled to work, since the two sets of drying systems use the same air inlet, the air flow speed can be increased by the fan of the heating assembly to speed up the drying cycle of the heat pump assembly, thereby improving the drying efficiency.

[0073] In the control method of the drying machine provided by the embodiment of the present application, different drying modes are configured for different clothes materials, which can not only dry the clothes specifically and reduce the problem of clothes wrinkles or low drying efficiency caused by using the same drying mode for different clothes, but also can reduce the overall energy consumption of the drying machine, thereby improving the user experience.

[0074] Please combine Figure 1 and refer to Figure 2 as shown, Figure 2 The second flow diagram of the control method of the clothes dryer provided by the embodiment of the present application. The embodiment of the present application further provides a control method of a clothes dryer, comprising:

[0075] 201, obtaining the material of the clothes in the inner drum.

[0076] Before the drying program starts, in order to classify and dry different clothes materials, that is, to adopt different drying modes, the material of the clothes in the inner drum needs to be obtained first, and then different drying modes are formulated for different clothes materials.

[0077] There are multiple ways to obtain the material of the clothes in the inner drum, for example, a camera is arranged at the inlet of the inner drum, the image of the clothes is captured, and the material of the clothes is determined by comparing the image with the pre-stored clothes material types through the processor. Among them, if the clothes put in at one time have multiple material types, the material type with the highest frequency is determined as the material of the clothes in the inner drum this time. Or the clothes with mixed materials are set with a drying mode of mixed materials. For another example, a scanning gun is arranged at the inlet of the inner drum, and the material of the clothes is obtained by scanning the label on the clothes. For another example, the drying program selected by the user can be obtained, and the material of the clothes in the inner drum is determined through the drying program. It can be understood that the clothes dryer is usually provided with multiple drying programs, such as wool drying, large piece drying, down drying, mixed drying, etc. Through the drying program selected by the user, the material of the clothes in the inner drum can be determined. Of course, the material of the clothes in the inner drum is not limited to the above-mentioned several ways, and the above-mentioned is only used for illustration, and should not be understood as a limitation on the material of the clothes.

[0078] For example, the material of the clothes in the inner drum can be protein fiber, down and large piece, and mixed. Protein fiber refers to a fiber similar to wool in properties made from natural protein. Wool, silk, etc. are natural protein fibers. Protein fiber is superior to natural wool in that it is not prone to shrinkage, insect damage, and easy to store. Down and large piece clothes usually have better waterproof performance. Mixed clothes, i.e. mixed chemical fiber fabric, is a spinning product woven from chemical fibers and other natural fibers such as cotton, silk, hemp, etc. It has the style of polyester and the advantages of cotton fabric. The characteristics of this type of clothes are: good elasticity and wear resistance in dry and wet conditions, stable size, small shrinkage, easy to wash, fast drying, and cannot be ironed with high temperature and soaked in boiling water. Of course, the material of the clothes is not limited to the above-mentioned three types, and the above-mentioned three types of clothes materials are used as examples for illustration, and should not be understood as a limitation on the material of the clothes.

[0079] For different types of clothes materials, the embodiment of the present application corresponds to different drying treatment modes, which will be described below.

[0080] 202、If the clothes material is protein fiber, a first target drying mode is determined from the plurality of drying modes, and in the first target drying mode, the heat pump assembly is controlled to work.

[0081] Protein fiber clothes are not easy to dry at high temperature because protein is easy to denature at high temperature. If high-temperature drying is used, irreversible damage to the clothes may occur. Therefore, for protein fiber clothes, drying can be performed in the first target drying mode. In the first target drying mode, the heat pump assembly is controlled to work, and low-temperature drying is performed using the heat pump assembly to reduce or avoid damage to protein fiber clothes.

[0082] For example, in the first target drying mode, the compressor of the heat pump assembly is controlled to work at a set frequency to exchange heat with the clothes in the inner drum, and the fan is controlled to work at a first speed to blow the clothes in the inner drum. That is, the heat pump assembly works to exchange heat with the clothes in the inner drum to continuously remove moisture from the clothes, thereby low-temperature drying the protein fiber clothes. At the same time, the fan is controlled to work at a first speed with a relatively large wind speed to generate a large amount of air to blow the clothes, so that the clothes are subjected to upward buoyancy, and the clothes tumble with the inner drum and are subjected to gravity to be beaten. The speed of beating is reduced by the buoyancy generated by the wind speed, which can reduce damage to the clothes.

[0083] In the above drying process, the inlet air temperature of the inner drum and the drum temperature in the inner drum can be obtained. The comparison of the inlet air temperature and the drum temperature can represent the heat generation of the compressor, that is, the heat exchange rate with the clothes in the inner drum. Therefore, the operating frequency of the compressor can be adjusted according to the inlet air temperature and the drum temperature. The difference between the inlet air temperature and the drum temperature is positively correlated with the operating frequency of the compressor, that is, the larger the difference between the inlet air temperature and the drum temperature, the larger the operating frequency of the compressor, and vice versa. For example, when the difference between the inlet air temperature and the drum temperature reaches a first preset value, it indicates that the temperature of the clothes in the inner drum is low, close to the inlet air temperature without heating, that is, the heating rate of the clothes in the inner drum is slow. Therefore, the operating frequency of the compressor can be increased to increase the heating rate and thus improve the drying efficiency of the clothes. For another example, when the difference between the inlet air temperature and the drum temperature reaches a second preset value, the second preset value is smaller than the first preset value. At this time, it indicates that the temperature of the clothes in the inner drum is high and has little difference from the inlet air temperature, that is, the heating rate of the clothes in the inner drum can be fast. If the compressor is still controlled to operate at a set frequency, the temperature may continue to rise, which may cause damage to the clothes. Therefore, the operating frequency of the compressor can be reduced to reduce the heating rate and thus reduce or avoid damage to the clothes.

[0084] 203、If the clothes material is down bulky, a second target drying mode is determined from the plurality of drying modes, in the second target drying mode, the heating assembly is controlled to work for a set time length, and then the heat pump assembly is controlled to work.

[0085] The down bulky clothes material is relatively special, and the wind system carries less moisture at low temperature. After the heating assembly is heated to a certain temperature, the moisture content in the circulating air path is relatively high. At this time, the heat pump assembly is turned on for dehumidification, which can save energy. In addition, the heating element in the heating assembly is not turned on during the dehumidification process, which can prevent the clothes from being wrinkled or damaged due to high temperature.

[0086] For example, if the clothes material is down bulky, a second target drying mode is determined from the plurality of drying modes, in the second target drying mode, the heating element is controlled to work, and the fan is controlled to run at a second speed to send the air heated by the heating element into the inner drum to exchange heat with the clothes in the inner drum, thereby continuously removing the moisture in the clothes in the inner drum. The second speed can be less than the first speed in the above-mentioned case, because the fan is mainly used to send the heated air into the inner drum at this time, and if the wind speed is too high, it will cause heat loss.

[0087] Subsequently, whether to end the electric heating is determined according to the drum temperature in the inner drum. For example, the drum temperature in the inner drum is obtained in real time, and when the drum temperature reaches the set temperature, a large part of the moisture in the down bulky clothes can be removed at this time, and the focus of work can be shifted to removing the moisture, i.e., dehumidification. For example, the heating element can be turned off at this time, and the compressor is turned on for dehumidification, and at the same time, the fan is controlled to run at a third speed to speed up the flow speed of the air, thereby improving the drying efficiency of the clothes. The third speed is greater than the second speed and less than the first speed, which can speed up the flow speed of the air, thereby improving the dehumidification efficiency, and the third speed is not too large, which can prevent water from being sucked back into the inner drum.

[0088] During the operation of the compressor, the working frequency of the compressor can be adjusted according to the inlet air temperature or the return air temperature in the inner drum, thereby improving the drying efficiency of the clothes.

[0089] After the above working state lasts for a certain period of time, whether the drying condition is reached is determined. If the drying condition is reached, in the last sub-stage of the drying stage, the compressor is turned off to stop low-temperature dehumidification, the heating element is controlled to work, and the fan is controlled to run at a third speed. It can be understood that the drying stage can be divided into a plurality of sub-stages, such as a temperature rising sub-stage, a constant temperature drying sub-stage, a temperature falling sub-stage, etc. The last sub-stage is a stage where the drying is about to be completed, and this stage is mainly used for increasing the fluffiness of the clothes.

[0090] The temperature of the incoming air of the inner drum is obtained, and the heating element is controlled to be turned on or off according to the temperature of the incoming air at a first temperature and a second temperature, so as to prevent the clothes from being damaged due to excessively high temperature. It can be understood that, in the last sub-stage of the drying stage, since the clothes have been basically dried at this time, if the heating element continues to be used for heating, the clothes are prone to be wrinkled or damaged, and therefore, the heating element works at a set on-off ratio in this stage, and the on-off of the heating element depends on the temperature of the incoming air of the inner drum. If the temperature of the incoming air exceeds the first temperature, the heating element is turned off, and if the temperature of the incoming air is less than the second temperature, the heating element is controlled to be turned on, and the second temperature is less than the first temperature.

[0091] In the above process, the length of the terminal drying operation is monitored, and when the length of the terminal drying operation is greater than or equal to a set drying length, that is, the running time of the last sub-stage of the drying stage is greater than or equal to the set drying length, the clothes are dried, and the heating element can be turned off. The set drying length is a set multiple of the total drying length, and the set multiple is less than 1. At this time, in the terminal period of drying the clothes, the heating element is used for high-temperature heating, and the condensate valve is opened, and the condensate water is used to clean the air, so that the clothes can gather heat and be more fluffy. After the heat pump assembly works, it is determined that the clothes have been dried, and the dried clothes enter the terminal high-temperature heating process. The length of the terminal high-temperature heating process is positively correlated with the total length of the drying process, that is, the longer the total length of the drying process, the longer the length of the terminal high-temperature heating process, so that the clothes can absorb heat sufficiently as the drying weight increases. The third rotating speed of the terminal high-temperature drying is less than the second rotating speed, so as to prevent the air volume from being too large and the water from being sucked back into the inner drum.

[0092] 204、If the clothes material is a blended type, a third target drying mode is determined from the plurality of drying modes, and in the third target drying mode, the heating assembly and the heat pump assembly are controlled to work simultaneously.

[0093] If the clothes material is a blended type, a third target drying mode is determined from the plurality of drying modes, and in the third target drying mode, the heating assembly and the heat pump assembly are controlled to work simultaneously. For the blended clothes, in the third target drying mode, the heating assembly and the heat pump assembly can be controlled to work simultaneously, that is, heating and rapid dehumidification, and the heat pump and the electric heating are used to heat simultaneously, so as to improve the drying speed. For example, the compressor and the heating element are controlled to work, and the fan is controlled to work at a third rotating speed, that is, the compressor and the heating element heat simultaneously to perform double heat exchange with the clothes in the inner drum, so as to improve the efficiency of the clothes in the inner drum to discharge moisture, and further improve the drying efficiency.

[0094] The exhaust temperature of the compressor is acquired, and when the exhaust temperature is greater than or equal to a preset temperature, the heating member is controlled to stop working. It can be understood that when the exhaust temperature of the compressor is too large, it indicates that the working temperature of the heat pump assembly is high, and if the high-temperature working is continued, the hot gas of the heat pump assembly is difficult to dissipate, and a safety accident is prone to occur. Therefore, in order to reduce the temperature rising rate, the heating member can be turned off at this time, that is, only the heat pump assembly is used for heating, the temperature rising rate is reduced, and thus low-temperature drying is realized.

[0095] In the low-temperature drying process, the working frequency of the compressor is adjusted according to the inlet air temperature or the return air temperature, so as to match the real-time state of the clothes, and thus the drying effect on the clothes is improved.

[0096] Finally, the clothes are judged to be dry, for example, whether the humidity value in the inner drum reaches a preset humidity, and the duration for reaching the preset humidity, are comprehensively used to judge whether the clothes are dry.

[0097] The control method of the clothes dryer provided in the embodiments of the present application can realize targeted drying of protein fiber clothes, down clothes and blended clothes, reduce the problems of wrinkles or low drying efficiency caused by using the same drying mode for different clothes, reduce the overall energy consumption of the clothes dryer, and thus improve the user experience.

[0098] It should be noted that the plurality of drying modes can include but are not limited to: separately controlling the heating assembly to work, separately controlling the heat pump assembly to work, controlling the heating assembly and the heat pump assembly to work simultaneously, controlling the heating assembly and the heat pump assembly to work in sequence, and controlling the heat pump assembly and the heating assembly to work in sequence. Therefore, for different clothes materials, the target drying mode corresponding to the clothes material can be configured to dry the clothes material according to the properties of the clothes material and the changes prone to occur during the drying process, so as to classify and dry different clothes materials, and reduce the occurrence of wrinkles or damage of the clothes caused by the mismatch between the clothes material and the drying mode.

[0099] Wherein, after the clothes material is determined, different drying modes can be adopted in case of different humidity, that is, the target drying mode is adjusted. For the same clothes material, if the weight of clothes in the inner drum is different, the humidity of the inner drum is also different, and if the drying time in the target drying mode is still adopted for drying, the drying efficiency is low or the clothes cannot be dried. Therefore, in this case, the humidity in the inner drum is obtained, the target drying mode is adjusted according to the humidity, and the adjusted target drying mode is obtained. In the adjusted target drying mode, the working time or the working frequency of the heating assembly and / or the heat pump assembly is adjusted according to the humidity. On this basis, the target drying mode can also be adjusted according to the weight of clothes in the inner drum. Or according to the running time of the plurality of sub-stages of the drying stage, if it is detected that the running time of a sub-stage in the plurality of sub-stages is lengthened, the target drying mode is adjusted so that the total time of the drying stage is unchanged, thereby improving the drying efficiency.

[0100] For example, for the same clothes material such as protein fiber, the working time of the heat pump assembly is different under different humidity, and the working time of the heat pump assembly can be positively correlated with the humidity, that is, the greater the humidity, the longer the working time of the heat pump assembly. Or for the same clothes material such as protein fiber, the working frequency of the compressor in the heat pump assembly is different under different humidity, and the working frequency of the compressor can also be positively correlated with the humidity, that is, the greater the humidity, the higher the working frequency of the compressor. Of course, the working frequency of the compressor cannot always increase, and therefore, in the case of greater humidity, the opening and stopping ratio of the compressor can be increased to speed up the drying speed of the clothes.

[0101] For example, for the same clothes material such as protein fiber, the working time of the heat pump assembly is different under different humidity, and the working time of the heat pump assembly can be positively correlated with the humidity, that is, the greater the humidity, the longer the working time of the heat pump assembly. Or for the same clothes material such as protein fiber, the working frequency of the compressor in the heat pump assembly is different under different humidity, and the working frequency of the compressor can also be positively correlated with the humidity, that is, the greater the humidity, the higher the working frequency of the compressor. Of course, the working frequency of the compressor cannot always increase, and therefore, in the case of greater humidity, the opening and stopping ratio of the compressor can be increased to speed up the drying speed of the clothes.

[0102] For example, for the same clothes material such as protein fiber, the working time of the heat pump assembly is different under different humidity, and the working time of the heat pump assembly can be positively correlated with the humidity, that is, the greater the humidity, the longer the working time of the heat pump assembly. Or for the same clothes material such as protein fiber, the working frequency of the compressor in the heat pump assembly is different under different humidity, and the working frequency of the compressor can also be positively correlated with the humidity, that is, the greater the humidity, the higher the working frequency of the compressor. Of course, the working frequency of the compressor cannot always increase, and therefore, in the case of greater humidity, the opening and stopping ratio of the compressor can be increased to speed up the drying speed of the clothes.

[0103] In the embodiments of the present application, different drying modes are configured for different humidity conditions of the same clothes material, which can speed up the drying efficiency and drying effect of the clothes.

[0104] The drying mode can also be set in different ways for different sub-stages in the same drying stage. For example, a target drying mode is determined from a plurality of drying modes according to the material of the laundry, the target drying mode is applied to a target sub-stage of the plurality of sub-stages of the drying stage, and different drying modes are respectively adopted for the laundry in the remaining sub-stages of the plurality of sub-stages.

[0105] It should be noted that the drying stage can include a plurality of sub-stages, such as a temperature rising sub-stage, a constant temperature drying sub-stage, a temperature falling sub-stage, etc. After the material of the laundry is determined, for example, for protein fiber type laundry, a target drying mode of separately controlling the heat pump assembly can be applied to a target sub-stage such as the constant temperature drying sub-stage. For the temperature rising sub-stage, in order to accelerate the temperature rising efficiency, a drying mode of working the heating assembly or a drying mode of working the heating assembly and the heat pump assembly together can be adopted for heating. In the temperature falling sub-stage, the heating assembly is adopted to perform temperature falling in the drying mode with a set on-off ratio. Different drying modes are adopted for drying in different sub-stages of the drying stage, which can shorten the working time of the drying stage, and thus improve the drying efficiency.

[0106] In order to better implement the control method of the laundry dryer according to the embodiments of the present application, the embodiments of the present application also provide a control device of a laundry dryer. Please refer to Figure 3 , Figure 3The structure schematic diagram of the control device of the clothes dryer is provided for the embodiments of the present application. The control device 300 of the clothes dryer includes an acquisition unit 301, a determination unit 302, and a control unit 303. The clothes dryer can be in the form of a drum, for example, the clothes dryer includes an inner drum, a heating assembly, and a heat pump assembly. Of course, the clothes dryer can also include components such as a display panel, a motor (not shown in the figure), and the like, which are not specifically limited here. The inner drum is used to carry clothes, and the inner drum can include lifting ribs. When the inner drum rotates, the clothes are lifted to the highest position by the lifting ribs, which can help to turn over and evenly spread the clothes, so as to evenly dry the clothes. The heating assembly can include a heating element and a fan. The heating element is in the form of a heating tube or a heating wire, for example. The heating element is used to heat air, and the fan is used to send the heated air into the inner drum through an air inlet of the inner drum. The hot air exchanges heat with the clothes in the inner drum, and the humid hot air is discharged through an air outlet of the inner drum. In this way, the moisture in the clothes is continuously discharged to dry the clothes. The clothes dryer also includes a drying air duct pipe arranged above the inner drum. The heating element and the fan are arranged in the drying air duct pipe. The inner drum has an air inlet and an air outlet, both of which are in communication with the drying air duct pipe. The heating assembly also includes a condensing element arranged at a position corresponding to the air outlet to condense and recover the humid hot air from the air outlet of the inner drum. The heat pump assembly can be arranged below the inner drum, which can lower the center of gravity of the clothes dryer, thereby improving the stability of the clothes dryer. For example, the heat pump assembly includes a shell and a compressor, a condenser, an evaporator, and an expansion valve arranged in the shell. By allowing the liquid working medium (refrigerant or coolant) to continuously complete the thermodynamic cycle of evaporation (absorbing heat from the environment), compression, condensation (releasing heat), throttling, and re-evaporation, the heat from the environment is transferred to water. The process of drying by the heat pump assembly is as follows: the hot air generated by the heat pump assembly enters the inner drum through the air inlet, exchanges heat with the clothes in the inner drum, becomes humid hot air, and then enters the heat pump assembly through the air outlet. The condensate is discharged in the heat pump assembly, and the process is repeated to continuously remove the moisture from the clothes, thereby achieving drying of the clothes.

[0107] The acquisition unit 301 is configured to acquire the material of the clothes in the inner drum.

[0108] The determination unit 302 is configured to determine a target drying mode from a plurality of drying modes according to the material of the clothes, and control the heating assembly and / or the heat pump assembly to work in different drying modes.

[0109] The control unit 303 is configured to control the clothes in the inner drum to be dried in the target drying mode.

[0110] All the above technical solutions can be combined to form optional embodiments of the present application, which will not be described here.

[0111] From the above, the control device 300 of the clothes dryer provided in the embodiments of the present application can configure different drying modes for different clothes materials, which can not only perform targeted drying on clothes and reduce the problems of wrinkles or low drying efficiency caused by using the same drying mode for different clothes, but also reduce the overall energy consumption of the clothes dryer, thereby improving the user experience.

[0112] Correspondingly, the embodiments of the present application also provide a clothes dryer, which will be described in combination with Figures 1 to 3 and referring to Figures 4 to 6 , it is shown that Figure 4 the structural schematic diagram of the clothes dryer provided in the embodiments of the present application, Figure 5 the structural schematic diagram of a first angle of part of the components in the clothes dryer provided in the embodiments of the present application, Figure 6 the structural schematic diagram of a second angle of part of the components in the clothes dryer provided in the embodiments of the present application. The clothes dryer 400 can be in the form of a drum, for example, the clothes dryer 400 includes an inner drum 401, a heating assembly 402 and a heat pump assembly 403. Of course, the clothes dryer 400 can also include components such as a display panel, a motor (not shown in the figure) and the like, which are not specifically limited here.

[0113] The inner drum 401 is used to carry clothes, and the inner drum 401 can include lifting ribs. When the inner drum rotates, the clothes are lifted to the highest position by the lifting ribs, which can help to turn over and evenly spread the clothes, so as to evenly dry the clothes.

[0114] The heating assembly 402 can include a heating element 4021 and a fan 4022. The heating element 4021 is in the form of a heating pipe or a heating wire, for example, and is used to heat air. The fan 4022 is used to send the heated air into the inner drum 401 through an air inlet of the inner drum 401. The hot air exchanges heat with the clothes in the inner drum 401, and the humid hot air is discharged through an air outlet of the inner drum 401. In this way, the moisture in the clothes is continuously discharged to dry the clothes. The clothes dryer 400 also includes a drying air duct pipe 404, which is arranged above the inner drum 401. The heating element 4021 and the fan 4022 are arranged in the drying air duct pipe 404. The inner drum 401 has an air inlet and an air outlet, both of which are in communication with the drying air duct pipe 404. The heating assembly 402 also includes a condensing element (not shown in the figure), which is arranged at a position corresponding to the air outlet to condense and recover the humid hot air from the air outlet of the inner drum.

[0115] The heat pump assembly 403 can be arranged below the inner drum 401, which can lower the gravity center of the clothes drying machine 400, and thus improve the stability of the clothes drying machine 400. For example, the heat pump assembly 403 includes a shell, and a compressor 4031, a condenser, an evaporator and an expansion valve arranged in the shell. Through the continuous completion of the thermodynamic cycle of evaporation (absorbing heat from the environment), compression, condensation (releasing heat), throttling and re-evaporation of the liquid working medium (refrigerant or coolant), the heat in the environment is transferred to the water. The process of the heat pump assembly 403 used for drying is as follows: the hot air generated by the heat pump assembly 403 enters the inner drum 401 through the air inlet, exchanges heat with the clothes in the inner drum 401, becomes humid hot air, and then enters the heat pump assembly 403 through the air outlet. Condensed water is formed in the heat pump assembly 403 and discharged. The above process is repeated to continuously remove the moisture in the clothes, thereby achieving the drying of the clothes.

[0116] Please refer to Figure 7 , Figure 7 The structure block diagram of the clothes drying machine provided in the embodiments of the present application, the clothes drying machine 400 can further include a processor 405 having one or more processing cores, a memory 406 having one or more computer readable storage media, and a computer program stored in the memory 406 and executable on the processor 405. Among them, the processor 405 and the memory 406 are electrically connected. Those skilled in the art can understand that the structure of the clothes drying machine 400 shown in the figure does not constitute a limitation on the clothes drying machine, and can include more or fewer components than shown, or combine certain components, or different component arrangements.

[0117] The processor 405 is the control center of the clothes drying machine 400, and connects various parts of the clothes drying machine 400 through various interfaces and lines. For example, the processor 405 can be electrically connected with the heating element 4021, the fan 4022 and the compressor 4031. By running or loading the software program and / or module stored in the memory 406, and calling the data stored in the memory 406, the processor 405 can execute various functions and process data of the clothes drying machine 400, thereby monitoring the clothes drying machine 400 as a whole.

[0118] In the embodiments of the present application, the processor 405 in the clothes drying machine 400 will load the instructions corresponding to the processes of one or more application programs into the memory 406, and run the application programs stored in the memory 406 by the processor 405, so as to realize various functions:

[0119] Obtaining the material of the clothes in the inner drum;

[0120] According to the material of the clothes, a target drying mode is determined from a plurality of drying modes, and the heating assembly and / or the heat pump assembly are controlled to work in different drying modes;

[0121] The clothes in the inner cylinder are controlled to be dried in the target drying mode.

[0122] The specific implementation of each operation can refer to the foregoing embodiments, which will not be described here.

[0123] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions, or by related hardware controlled by the instructions, which can be stored in a computer readable storage medium and loaded and executed by a processor.

[0124] To this end, the embodiment of the present application provides a computer readable storage medium, which stores a plurality of computer programs. The computer programs can be loaded by a processor to execute the steps in the control method of the clothes dryer provided by the embodiment of the present application.

[0125] The storage medium can include a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0126] Since the computer programs stored in the storage medium can execute the steps in the control method of the clothes dryer provided by the embodiment of the present application, the beneficial effects of any of the control methods of the clothes dryer provided by the embodiment of the present application can be achieved. Details are described in the foregoing embodiments, which will not be described here.

[0127] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can refer to the related description of other embodiments.

[0128] In the description of the present application, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.

[0129] The clothes dryer and the control method thereof provided by the embodiment of the present application are described in detail above, and the specific examples are applied to describe the principles and implementation modes of the present application. The above description of the embodiments is only used to help understand the method and the core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed; in conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A control method for a clothes dryer, characterized in that, The clothes dryer includes an inner drum, a heating element, a heat pump element, and a drying duct. The inner drum is used to hold clothes, and both the heating element and the heat pump element can exchange heat with the clothes inside the inner drum. The heating element includes a fan and a heating element disposed within the drying duct, and the heat pump element includes a compressor. The control method includes: Obtain the material of the clothing inside the inner drum; Based on the fabric material of the garment, a target drying mode is determined from multiple drying modes. Under different drying modes, the heating element and / or the heat pump component are controlled to operate, including: if the garment material is a large down garment, a second target drying mode is determined from multiple drying modes; under the second target drying mode, the heating element is controlled to operate, and the fan is controlled to run at a second speed to deliver air heated by the heating element into the inner drum; the temperature inside the inner drum is obtained; when the temperature inside the drum reaches a set temperature, the heating element is turned off, the compressor is turned on, and the fan is controlled to run at a third speed; the third speed is greater than the second speed; in the final sub-stage of multiple sub-stages of the drying process, the compressor is turned off, and the heating element and the fan are controlled to run at the third speed. The system controls the drying of the clothes inside the inner drum using the target drying mode.

2. The control method according to claim 1, characterized in that, The step of determining a target drying mode from multiple drying modes based on the fabric material, and controlling the heating component and / or the heat pump component to operate under different drying modes, further includes: If the clothing material is protein fiber, a first target drying mode is determined from multiple drying modes, and the heat pump component is controlled to work under the first target drying mode. If the clothing material is a blended fabric, a third target drying mode is determined from multiple drying modes. Under the third target drying mode, the heating component and the heat pump component are controlled to work simultaneously.

3. The control method according to claim 2, characterized in that, After determining the target drying mode from multiple drying modes based on the fabric material, and controlling the heating component and / or the heat pump component to operate under different drying modes, the control method further includes: Obtain the humidity inside the inner cylinder; The target drying mode is adjusted according to the humidity to obtain the adjusted target drying mode. Under the adjusted target drying mode, the working duration or working frequency of the heating component and / or the heat pump component is adjusted according to the humidity.

4. The control method according to claim 2, characterized in that, The step of determining a target drying mode from multiple drying modes based on the fabric material, and controlling the heating component and / or the heat pump component to operate under different drying modes, further includes: The target drying mode is determined from multiple drying modes based on the fabric of the garment. The target drying mode is applied to the target sub-stage of multiple sub-stages of the drying stage; In the remaining sub-stages of the multiple sub-stages, different drying modes are used to dry the clothes.

5. The control method according to claim 2, characterized in that, The heating component includes a fan, and the dryer further includes a drying air duct, with the fan disposed in the drying air duct; the heat pump component includes a compressor; If the clothing material is protein fiber, a first target drying mode is determined from multiple drying modes. Under the first target drying mode, the heat pump component is controlled to operate, including: In the first target drying mode, the compressor is controlled to operate; and the fan is controlled to operate at a first speed.

6. The control method according to claim 5, characterized in that, After controlling the compressor to operate and controlling the fan to operate at a first speed in the first target drying mode, the control method further includes: The air inlet temperature and the internal temperature of the inner cylinder are obtained. The operating frequency of the compressor is adjusted based on the inlet air temperature and the cylinder temperature, and the difference between the inlet air temperature and the cylinder temperature is positively correlated with the operating frequency of the compressor.

7. The control method according to claim 1, characterized in that, In the final sub-stage of the multiple sub-stages of the drying stage, after shutting down the compressor, controlling the heating element to operate, and controlling the fan to run at the third speed, the control method further includes: Obtain the air inlet temperature of the inner cylinder; The heating element is controlled to start and stop based on the inlet air temperature, with the first temperature for disconnection and the second temperature for activation. When the running time of the final sub-stage is greater than or equal to the set duration, the heating element is turned off.

8. The control method according to claim 2, characterized in that, The dryer includes a drying air duct, the heating assembly includes a fan and a heating element disposed in the drying air duct, and the heat pump assembly includes a compressor; If the clothing material is a blend, a third target drying mode is determined from multiple drying modes. Under this third target drying mode, the heating component and the heat pump component are controlled to operate simultaneously, including: In the third target drying mode, the compressor and the heating element are controlled to operate, and the fan is controlled to operate at a third speed to perform dual heat exchange with the clothes in the inner drum.

9. A clothes dryer, characterized in that, include: The inner tube is used to hold clothing; A drying air duct is installed above the inner cylinder; The heating assembly includes a fan and a heating element disposed within the drying air duct. The heating assembly is used to exchange heat with the inner drum to dry the clothes inside the inner drum. A heat pump assembly, including a compressor, is used to exchange heat with the inner drum to dry clothes inside the inner drum; The processor is electrically connected to the fan, the heating element and the compressor respectively, and the processor is used to execute the control method of the dryer as described in any one of claims 1-8.

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