Clothes dryer

Abstract

The embodiment of the invention provides a clothes dryer. The clothes dryer comprises a box body; a heating device and an atomizing device are arranged in the box body; the heating device comprises a draught fan, an evaporator and a condenser. The draught fan is used for pushing air to sequentially pass through the evaporator and the condenser to form dried air, and then the dried air is conveyed into the box body. The atomization device is arranged between the evaporator and the condenser and electrically connected with a controller in the box body, and the controller is configured to execute the following steps that the moisture content of drying air in the box body is obtained; if the moisture content does not exceed the preset moisture content threshold value, the atomization device is controlled to be started, and the atomization device is made to spray small-particle liquid drops so as to improve the humidity of the dried air. According to the technical scheme, when it is determined that the to-be-dried clothes are extremely prone to the over-drying phenomenon through the obtained moisture content of the drying air, the atomization device is controlled to spray the small-particle liquid drops, the humidity of the drying air is improved, so that the moisture in the to-be-dried clothes is improved, and the to-be-dried clothes are not prone to the over-drying phenomenon.

Description

Technical Field

[0001] The present application relates to the field of electromechanical control technology, and in particular to a clothes dryer. Background Art

[0002] With the improvement of people's living standards, using a clothes dryer to dry clothes has become a common way of drying clothes. In the related art, a clothes dryer usually uses high-temperature and low-humidity drying air to dry clothes, but as the drying time increases, the evaporation capacity of the clothes to be dried gradually decreases, so it is very easy to over-dry, causing the clothes to be over-dehydrated and wrinkled during the drying process. Therefore, how to avoid the over-drying of clothes to be dried during the drying process of users using a clothes dryer has become a problem that technicians need to solve urgently. Summary of the invention

[0003] In order to solve the above technical problems, an embodiment of the present application provides a clothes dryer.

[0004] According to one aspect of an embodiment of the present application, a clothes dryer is provided, comprising: a housing; a heating device and an atomizing device arranged in the housing; the heating device comprises a fan, an evaporator and a condenser, the fan being used to push air to pass through the evaporator and the condenser in sequence to form dry air and then transport it into the housing; the atomizing device is arranged between the evaporator and the condenser, and is electrically connected to a controller in the housing, the controller being configured to perform the following steps: obtaining the moisture content of the dry air in the housing; if the moisture content does not exceed a preset moisture content threshold, controlling the atomizing device to start, so that the atomizing device sprays small particle droplets to increase the humidity of the dry air.

[0005] In the above embodiment, the controller controls the start-up of the atomizing device by acquiring the correlation between the moisture content of the drying air in the box and the preset moisture threshold, so that the atomizing device sprays small particle droplets, thereby increasing the humidity of the drying air, and utilizing the inherent moisture regain characteristics of the clothes to be dried made of fabric to absorb moisture in the drying air when the evaporation capacity is too low, thereby increasing the moisture content of the clothes to be dried, thereby ensuring that the clothes to be dried are not prone to overdrying and over-dehydration and wrinkling during the drying process, and the flatness of the clothes to be dried is improved, and accordingly, the user's satisfaction with the use of the dryer is simultaneously improved.

[0006] In some embodiments, the controller is further configured to perform the following steps: before controlling the operation of the atomization device, obtaining the material of the clothes to be dried in the box; and determining a corresponding preset moisture threshold value according to the material of the clothes.

[0007] In the above embodiment, the controller determines the corresponding preset moisture threshold value according to the acquired clothing material to adjust the starting conditions of the atomization device according to different clothing materials, thereby ensuring that the atomization device increases the humidity of the drying air in time, thereby avoiding overdrying of clothes to be dried made of different clothing materials.

[0008] In some embodiments, the controller is also electrically connected to the heating device, and the controller is also configured to perform the following steps: obtaining the load weight and clothing material corresponding to the clothes to be dried in the box; determining the operating parameters of the heating device and the atomization device according to the load weight and the clothing material.

[0009] In the above embodiment, the controller can determine the operating parameters of the heating device and the atomizing device according to the acquired load weight and clothing material corresponding to the clothes to be dried, so as to adjust the operation of the heating device and the atomizing device according to the operating parameters corresponding to different load weights and different clothing materials, thereby ensuring that the heating device and the atomizing device accurately adjust the humidity value and the temperature value of the drying air, and then on the premise of drying the clothes to be dried, avoid overdrying of the clothes to be dried, thereby improving the user's satisfaction with the use of the dryer; in addition, by simultaneously adjusting the operation of the heating device and the atomizing device, the humidity value and the temperature value of the drying air can be adjusted more quickly, greatly shortening the time taken for the drying and wrinkle removal process.

[0010] In some embodiments, the operating parameters include a target humidity, the dryer also includes a humidity sensor disposed in the housing, the humidity sensor is electrically connected to the controller, and the controller is further configured to perform the following steps: determining the target humidity based on the load weight and the material of the clothes; and controlling the working state of the atomization device based on the correlation between the humidity value of the clothes to be dried in the housing and the target humidity to maintain the humidity value of the clothes to be dried at the target humidity.

[0011] In the above embodiment, the controller can maintain the humidity value of the clothes to be dried at the target humidity to ensure that the clothes to be dried are not easily over-dried.

[0012] In some embodiments, the target humidity is a preset humidity interval, and the controller is further configured to perform the following steps: when the humidity value of the clothes to be dried does not reach the lower limit threshold of the temperature interval, the atomization device is controlled to start; when the humidity value of the clothes to be dried exceeds the upper limit threshold of the temperature interval, the atomization device is controlled to turn off.

[0013] In the above embodiment, the controller can maintain the humidity value of the clothes to be dried within the humidity range. On the one hand, it ensures that the clothes to be dried are not easily over-dried to a certain extent. On the other hand, it is not easy for the working state of the atomization device to be frequently switched due to short-term changes in the humidity value of the clothes to be dried, thereby improving the service life of the atomization device.

[0014] In some embodiments, the operating parameters include a target temperature, the dryer also includes a temperature sensor arranged in the casing, the heating device includes a compressor, the temperature controller and the compressor are electrically connected to the controller respectively, and the controller is also configured to perform the following steps: determine the target temperature according to the load weight and the material of the clothes; control the working state of the compressor according to the correlation between the temperature value of the drying air in the casing and the target temperature to maintain the temperature value of the drying air at the target temperature.

[0015] In the above embodiment, the controller can maintain the temperature value of the clothes to be dried at the target temperature to ensure that the clothes to be dried are not easily over-dried.

[0016] In some embodiments, the target temperature is a preset temperature range, and the controller is further configured to perform the following steps: when the temperature value of the clothes to be dried does not reach the lower limit threshold of the temperature range, the compressor is controlled to start; when the temperature value of the clothes to be dried exceeds the upper limit threshold of the temperature range, the compressor is controlled to shut down.

[0017] In the above embodiment, the controller can maintain the temperature value of the clothes to be dried within the temperature range. On the one hand, it ensures that the clothes to be dried are not easily over-dried to a certain extent. On the other hand, it is not easy for the working state of the compressor to be frequently switched due to short-term changes in the temperature value of the clothes to be dried, thereby improving the service life of the compressor.

[0018] In some embodiments, the operating parameters also include a target control time, and the controller is further configured to perform the following steps: determining the target control time based on the load weight and the clothing material; starting timing when the moisture content does not exceed the preset moisture content threshold, and when the timing time reaches the target control time, controlling the atomization device to turn off.

[0019] In the above embodiment, the controller can determine through the target control time that the clothes to be dried can fully absorb the moisture in the drying air and are not prone to overdrying, and then control the atomization device to turn off, thereby preventing the atomization device from continuously increasing the humidity of the drying air, causing the dryer to significantly extend the time it takes to dry the clothes to be dried, resulting in a decrease in user satisfaction with the use of the dryer.

[0020] In some embodiments, the controller is further configured to perform the following steps: obtaining the weight values ​​corresponding to the load weight and the clothing material respectively; and calculating the target control duration based on the weight value corresponding to the load weight and the weight value corresponding to the clothing material.

[0021] In some embodiments, the controller is further configured to perform the following steps: determining a target atomization amount of the atomization device based on the moisture content of the drying air; cyclically executing the steps of controlling the atomization device to shut down when the duration of starting the atomization device reaches a preset running duration, and restarting the atomization device after the shutdown duration of the atomization device reaches a preset stop duration, until the cumulative mist output of the atomization device reaches the target atomization amount.

[0022] In the above embodiment, the atomizing device is controlled by the controller to realize alternating intermittent operation, so that the condenser can fully evaporate the small particle droplets sprayed by the atomizing device, and it is not easy for the atomizing device to spray too many small particle droplets, resulting in failure to evaporate after heat exchange with the refrigerant in the condenser, thereby reducing the efficiency of increasing the humidity of the dry air.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0025] Figure 1 It is a structural schematic diagram of a clothes dryer shown in an exemplary embodiment of the present application.

[0026] Figure 2 It is a schematic structural diagram of a heating device in a clothes dryer shown in an exemplary embodiment of the present application.

[0027] Figure 3 It is a schematic structural diagram of a clothes dryer shown in another exemplary embodiment of the present application.

[0028] Figure 4 It is a schematic structural diagram of a clothes dryer shown in another exemplary embodiment of the present application.

[0029] Figure 5 This is a flow chart of a control method for a clothes dryer provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0031] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0032] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0033] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0034] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship.

[0035] Figure 1 FIG. 1 is a schematic diagram of the structure of a clothes dryer provided by an exemplary embodiment of the present application. Figure 1 As shown, the clothes dryer 100 comprises a housing 101 and a heating device 102 and an atomizing device 103 arranged in the housing 101. Each part will be introduced one by one below.

[0036] The box 101 is used to accommodate the clothes to be dried.

[0037] The heating device 102 is used to provide drying air for drying the clothes to be dried in the box 101;

[0038] In the embodiment of the present application, the heating device 102 provides the drying air in a manner as shown in FIG. Figure 1 As shown, the heating device 102 includes a fan 104, an evaporator 105 and a condenser 106. The fan 104 is used to push air through the evaporator 105 and the condenser 106 in sequence to form dry air and then transport it to the box 101. The evaporator 105 and the condenser 106 are both used to perform heat exchange with the air.

[0039] The evaporator 105 and the condenser 106 are connected by a pipe, and the pipe is filled with a refrigerant for heat exchange with the air, and the flow direction of the refrigerant is to circulate through the evaporator 105 and the condenser 106 in sequence. When the refrigerant initially flows through the evaporator 105, its corresponding temperature is lower than the temperature of the air, so that after the air pushed by the fan 104 exchanges heat with the refrigerant in the evaporator 105, on the one hand, the temperature of the air is reduced, and on the other hand, the water vapor in the air is cooled and condensed on the evaporator 105, so that the air humidity is reduced.

[0040] When the refrigerant that has absorbed the heat in the air further flows through the condenser 106, its corresponding temperature is higher than the temperature of the air. Therefore, after the air pushed by the fan 104 exchanges heat with the refrigerant in the condenser 106, the temperature of the air rises, thereby forming high-temperature and low-humidity drying air to effectively absorb moisture and dry the clothes to be dried in the box 101.

[0041] In addition, the heating device 102 may further include a compressor 201. The specific configuration of the compressor 201 may refer to Figure 2 As shown, the compressor 201 is arranged in the pipeline between the evaporator 105 and the condenser 106. The compressor 201 is used to compress the refrigerant flowing to the condenser 106, so that the temperature of the refrigerant flowing to the condenser 106 is increased, and at the same time, the circulation flow speed of the refrigerant from the condenser 106 to the evaporator 105 is accelerated, thereby achieving the purpose of improving the heating and dehumidification capacity corresponding to the dry air provided by the heating device 102.

[0042] The atomizing device 103 is used to spray small particle droplets to increase the humidity of the drying air.

[0043] In an embodiment of the present application, the atomizing device 103 is disposed between the evaporator 105 and the condenser 106, so that the small particle droplets sprayed by the atomizing device 103 can follow the air flow pushed by the fan 104 through the condenser 106, so that the small particle droplets can exchange heat with the refrigerant in the condenser 106 to evaporate the small particle droplets, and then the evaporated small particle droplets are mixed with the dry air to fully increase the humidity of the dry air.

[0044] The atomizing device 103 sprays small particle droplets by setting a controller in the box 101. The controller is electrically connected to the atomizing device 103 to control the working state of the atomizing device 103, that is, to control the atomizing device 103 to spray small particle droplets. In addition, the controller is configured to perform the following steps:

[0045] Obtain the moisture content of the drying air in the box;

[0046] If the moisture content does not exceed the preset moisture content threshold, the atomization device is controlled to start.

[0047] In the embodiment of the present application, the controller can obtain the moisture content of the dry air in the box 101 to determine the humidity of the dry air. The moisture content of the dry air in the box 101 can be obtained by setting a moisture sensor for collecting the moisture content of the dry air in the box 101, and the moisture sensor is electrically connected to the controller, so that the controller can directly obtain the moisture content corresponding to the dry air in the box 101 through the electrical connection between the moisture sensor and the controller.

[0048] It should be noted that the clothes dryer 100 dries the clothes to be dried by continuously drying the clothes to be dried with the high-temperature and low-humidity dry air output by the heating device 102, so that the moisture in the clothes to be dried evaporates at high temperature to form water vapor in the box 101, and then the dry air absorbs the water vapor and discharges it outside the box 101 to complete the drying of the clothes to be dried. However, as the drying time increases, the moisture content in the clothes to be dried will continue to decrease, and accordingly, the evaporation capacity of the clothes to be dried will also decrease synchronously, so that the clothes to be dried are prone to over-drying, causing the clothes to be over-dehydrated and wrinkled during the drying process.

[0049] Therefore, in an embodiment of the present application, after the controller obtains the moisture content of the drying air in the box 101, if it determines that the moisture content does not exceed the preset moisture content threshold, it indicates that the evaporation capacity of the clothes to be dried is too low, so that the drying air in the box 101 cannot saturate and absorb the water vapor generated by the clothes to be dried, and its corresponding moisture content will be reduced synchronously. In other words, the clothes to be dried with too low evaporation capacity are continuously dried in the high-temperature and low-humidity drying air at this time, and overdrying may easily occur. Therefore, when the controller determines that the moisture content does not exceed the preset moisture content threshold, the controller controls the atomization device 103 to start, so that the atomization device 103 sprays small particle droplets, thereby increasing the humidity of the drying air, and utilizing the inherent moisture regain characteristics of the clothes to be dried made of fabric to absorb moisture in the drying air when the evaporation capacity is too low, thereby increasing the moisture in the clothes to be dried, thereby ensuring that the clothes to be dried are not easily over-dehydrated and wrinkled during the drying process, and improving the flatness of the clothes to be dried.

[0050] In another exemplary embodiment, the controller is further configured to perform the following steps:

[0051] Before controlling the operation of the atomizing device, obtaining the material of the clothes to be dried in the box;

[0052] The corresponding preset moisture threshold is determined according to the material of the clothing.

[0053] It should be noted that the evaporation capacity of the clothes to be dried is related to the material of the clothes themselves. That is to say, the evaporation rate of water in the clothes to be dried is different for clothes of different materials. Correspondingly, the speed at which the overdrying phenomenon occurs is also different for clothes of different materials.

[0054] In an embodiment of the present application, before controlling the operation of the atomization device 103, the controller can obtain the clothing material of the clothes to be dried in the box 101, and then determine the corresponding preset moisture threshold according to the clothing material, so as to adjust the starting conditions of the atomization device 103 according to different clothing materials, thereby ensuring that the atomization device 103 increases the humidity of the drying air in time, thereby avoiding overdrying of clothes to be dried of different clothing materials.

[0055] Among them, the way to obtain the material of the clothes to be dried in the box 101 can be to identify the material of the clothes through a material identification device set in the box 101. The material identification device is electrically connected to the controller, so that the material of the clothes to be dried in the box 101 is obtained by the material identification device and then sent to the controller, so that the controller can obtain the material of the clothes to be dried in the box 101. The material identification device includes but is not limited to a near infrared spectrum identification device and an ultrasonic identification device.

[0056] Considering that when the user uses the clothes dryer 100 to dry clothes, the clothes to be dried may include multiple materials. Therefore, when the material identification device identifies multiple clothes materials, the controller can also be configured to perform the following steps:

[0057] Obtain the material of the clothes to be dried in the box;

[0058] If it is determined that the clothing materials include multiple types, the preset moisture thresholds corresponding to the different types of clothing materials are determined, and the minimum preset moisture threshold is determined from the multiple preset moisture thresholds, and the clothing material corresponding to the minimum preset moisture threshold is used as the clothing material corresponding to the clothes to be dried in the box.

[0059] In another exemplary embodiment, the controller is also electrically connected to the heating device 102, and the controller is further configured to perform the following steps:

[0060] Obtain the load weight and clothing material corresponding to the clothes to be dried in the box;

[0061] Determine the operating parameters of the heating device and the atomizing device according to the load weight and the material of the clothes.

[0062] As the number of clothes to be dried in the box 101 increases, more moisture is required to prevent the clothes from being over-dried, that is, the greater the load weight, the greater the humidity required to increase the drying air.

[0063] Therefore, in the embodiment of the present application, the controller can obtain the load weight and clothing material corresponding to the clothes to be dried in the box 101, and then determine the operating parameters of the heating device 102 and the atomizing device 103 according to the load weight and the clothing material, so as to adjust the operation of the heating device 102 and the atomizing device 103 according to the operating parameters corresponding to different load weights and different clothing materials, thereby ensuring that the heating device 102 and the atomizing device 103 accurately adjust the humidity value and temperature value of the drying air, and then on the premise of drying the clothes to be dried, avoid the phenomenon of over-drying of the clothes to be dried, and improve the user's satisfaction with the use of the dryer 100. In addition, by adjusting the operation of the heating device 102 and the atomizing device 103 at the same time, the humidity value and temperature value of the drying air can be adjusted more quickly, greatly shortening the time consumption of the drying and wrinkle removal process.

[0064] In order to adjust the operation mode of the heating device 102, the compressor 201 of the heating device 102 can be electrically connected to the controller, so that the controller can control the working state of the compressor 201 through the electrical connection between the controller and the compressor 201, so as to adjust the temperature of the refrigerant in the condenser 106 and the flow rate of the refrigerant after cooling by the condenser 106 to the evaporator 105, thereby achieving the purpose of controlling the temperature and humidity of the dry air formed by the heat exchange with the refrigerant in the evaporator 105 and the condenser 106.

[0065] In an exemplary embodiment of the present application, the operating parameters include target humidity, and the controller is further configured to perform the following steps:

[0066] Determine target humidity based on load weight and clothing material;

[0067] The working state of the atomizing device is controlled according to the correlation between the humidity value of the clothes to be dried in the box and the target humidity.

[0068] The target humidity represents the load weight of the clothes to be dried and the humidity value corresponding to the material of the clothes that is not prone to overdrying.

[0069] In order to enable the controller to obtain the humidity value corresponding to the clothes to be dried in the box 101, it can refer to Figure 3As shown, the clothes dryer 100 further includes a humidity sensor 301 disposed in the housing 101. The humidity sensor 301 is electrically connected to the controller to collect humidity values ​​corresponding to the clothes to be dried through the humidity sensor 301, and send the collected humidity values ​​to the controller based on the electrical connection with the controller.

[0070] In the embodiment of the present application, the controller can determine the target humidity according to the load weight and the material of the clothes, that is, the controller can pre-store the target humidity corresponding to different load weights and different clothes materials, and correspondingly, it can also be stored in a memory provided in the dryer 100 and electrically connected to the controller; after determining the target humidity, the controller can control the working state of the atomizing device 103 according to the correlation between the humidity value of the clothes to be dried in the box 101 and the target humidity, so as to maintain the humidity value of the clothes to be dried at the target humidity. In addition, since the heating device 102 can also affect the humidity value of the clothes to be dried, after determining the target humidity, the controller can also control the working state of the compressor 201 of the heating device 102 while controlling the working state of the atomizing device 103 according to the correlation between the humidity value of the clothes to be dried in the box 101 and the target humidity, so as to improve the efficiency of maintaining the humidity value of the clothes to be dried at the target humidity.

[0071] According to the correlation between the humidity value of the clothes to be dried in the box 101 and the target humidity, the method of controlling the working state of the atomizing device 103 can be flexibly set as needed. In one example, the target humidity can be a preset humidity threshold, and the controller is correspondingly configured to perform the following steps: when the humidity value of the clothes to be dried does not reach the humidity threshold, the atomizing device 103 is controlled to start; when the humidity value of the clothes to be dried exceeds the humidity threshold, the atomizing device 103 is controlled to shut down; so that the humidity value of the clothes to be dried is always maintained at the humidity threshold, ensuring that the clothes to be dried are not prone to over-drying.

[0072] In another example, the target humidity can also be a preset humidity range, and the controller is correspondingly configured to perform the following steps: when the humidity value of the clothes to be dried does not reach the lower limit threshold of the humidity range, the atomization device 103 is controlled to start; when the humidity value of the clothes to be dried exceeds the upper limit threshold of the humidity range, the atomization device 103 is controlled to be turned off; so that the humidity value of the clothes to be dried is maintained within the humidity range. On the one hand, it ensures that the clothes to be dried are not prone to overdrying to a certain extent. On the other hand, it is not easy for the working state of the atomization device 103 to be frequently switched due to short-term changes in the humidity value of the clothes to be dried, thereby improving the service life of the atomization device 103.

[0073] In another exemplary embodiment, the operating parameters further include a target temperature, and the controller is further configured to perform the following steps:

[0074] Determine target temperature based on load weight and clothing material;

[0075] The working state of the compressor is controlled according to the correlation between the temperature value of the dry air in the box and the target temperature.

[0076] The target temperature represents a temperature value at which overdrying does not occur easily when the drying air dries the load weight and clothing material corresponding to the current clothing to be dried.

[0077] In order to enable the controller to obtain the temperature value corresponding to the dry air in the box 101, it can refer to Figure 4 As shown, the clothes dryer 100 further includes a temperature sensor 401 disposed in the housing 101. The temperature sensor 401 is electrically connected to the controller, so that the temperature value corresponding to the drying air is collected through the temperature sensor 401, and the collected temperature value is sent to the controller based on the electrical connection between the temperature sensor 401 and the controller.

[0078] In the embodiment of the present application, the controller can determine the target temperature according to the load weight and the clothing material, that is, the controller can pre-store the target temperatures of the drying air corresponding to different load weights and different clothing materials, and correspondingly, can also be stored in the memory; after determining the target temperature, the controller can control the working state of the compressor 201 according to the correlation between the temperature value of the drying air in the box 101 and the target temperature, so as to maintain the temperature value of the drying air at the target temperature. In addition, considering that the atomization device 103 can also affect the temperature value of the drying air, after determining the target temperature, the controller can also control the working state of the atomization device 103 according to the correlation between the temperature value of the drying air in the box 101 and the target temperature, while controlling the working state of the compressor 201, so as to improve the efficiency of maintaining the temperature value of the drying air at the target temperature.

[0079] According to the correlation between the temperature value of the clothes to be dried in the box 101 and the target temperature, the method of controlling the working state of the heating device 102 can be flexibly set as needed. In one example, the target temperature can be a preset temperature threshold, and the controller is correspondingly configured to perform the following steps: when the temperature value of the drying air does not reach the temperature threshold, the heating device 102 is controlled to start; when the temperature value of the drying air exceeds the temperature threshold, the heating device 102 is controlled to shut down; so that the temperature value of the drying air is always maintained at the temperature threshold, ensuring that the clothes to be dried are not easily over-dried when drying with the drying air at the current temperature.

[0080] In another example, the target temperature can also be a preset temperature range, and the controller is correspondingly configured to perform the following steps: when the temperature value of the drying air does not reach the lower limit threshold of the temperature range, the compressor 201 is controlled to start; when the temperature value of the drying air exceeds the upper limit threshold of the humidity range, the compressor 201 is controlled to shut down; so that the temperature value of the drying air is maintained within the temperature range. On the one hand, it ensures to a certain extent that the drying air is not prone to over-drying when drying the clothes to be dried. On the other hand, it is not easy to cause the working state of the compressor 201 to be frequently switched due to short-term changes in the temperature value of the drying air, thereby increasing the service life of the compressor 201.

[0081] In another exemplary embodiment, the operating parameters also include a target control duration, and the controller is further configured not to execute the following steps.

[0082] Determine the target control time based on the load weight and clothing material;

[0083] The timing starts when the moisture content does not exceed the preset moisture content threshold. When the timing duration reaches the target control duration, the atomization device is controlled to be turned off.

[0084] The target control time is characterized by the time required for the clothes to be dried to absorb moisture in the drying air in order to avoid overdrying corresponding to the load weight and the material of the clothes to be dried.

[0085] In an embodiment of the present application, the controller can determine the target control time according to the load weight and the material of the clothes, and start timing from the time when the moisture content does not exceed the preset moisture content threshold. When the timing reaches the target control time, the atomization device 103 is controlled to be turned off, so that the controller can start the atomization device 103 after determining that the moisture content does not exceed the preset moisture content threshold. After that, the controller can determine through the target control time that the clothes to be dried can fully absorb the moisture in the drying air and are not prone to overdrying, and then control the atomization device 103 to be turned off, thereby avoiding the atomization device 103 from continuously increasing the humidity of the drying air, which causes the time taken by the dryer 100 to dry the clothes to be dried to be greatly extended, resulting in a decrease in the user's satisfaction with the dryer 100.

[0086] For example, the load weight of the clothes to be dried is 3kg and the material of the clothes is wool. Correspondingly, the control time corresponding to the 3kg weight is 60 minutes, and the control time corresponding to the wool is -20 minutes. The target control time determined according to the load weight and the material of the clothes is 60 minutes, that is, the control time corresponding to the 3kg weight plus the control time corresponding to the wool.

[0087] Among them, the moisture regain characteristics of different clothing materials are all different. Therefore, if the moisture regain characteristics corresponding to the clothing material are good, the control time corresponding to the clothing material is shortened, that is, the time for the clothing material to absorb moisture in the drying air is shortened, thereby shortening the time consumed by the dryer 100 to dry the clothes to be dried. Correspondingly, in order to prevent the clothing material with poor moisture regain characteristics from being over-dried, the control time corresponding to the clothing material with poor moisture regain characteristics is extended.

[0088] In an exemplary embodiment of the present application, with respect to the process of determining the target control duration, the controller is further configured to perform the following steps:

[0089] Get the weight values ​​corresponding to the load weight and clothing material;

[0090] The target control duration is calculated based on the weight value corresponding to the load weight and the weight value corresponding to the clothing material.

[0091] Taking into account that different clothing materials have different moisture regain characteristics, accordingly, the time required for the clothes to be dried made of different clothing materials to absorb moisture in the drying air under the same load weight in order to avoid overdrying is different. Based on this, in an embodiment of the present application, the controller can obtain the weight values ​​corresponding to the load weight and the clothing material, and then calculate the target control time based on the weight value corresponding to the load weight and the weight value corresponding to the clothing material.

[0092] Referring to the above example, the load weight corresponding to the current clothes to be dried is 3kg and the material of the clothes is wool. Correspondingly, the weight value corresponding to 3kg is 0.6, and the weight value corresponding to wool is 0.9. If the unit control time is 100min, the target control time calculated based on the weight value corresponding to the load weight and the weight value corresponding to the clothing material is 48min, that is, the calculation result is obtained by multiplying the product of the weight value corresponding to the load weight and the weight value corresponding to the clothing material by the unit control time.

[0093] Among them, the unit control time can be flexibly set according to needs. The calculation result obtained by dividing the control time corresponding to the load weight by the corresponding weight value can be used as the unit control time, or the unit control time can be set to a fixed value, which is not restricted here.

[0094] In an exemplary embodiment of the present application, with respect to the control process of the atomization device 103, the controller is further configured to perform the following steps:

[0095] Determine the target atomization amount of the atomization device according to the moisture content of the drying air;

[0096] The steps of cyclically executing the startup time of the atomizing device reaches a preset running time, controlling the atomizing device to shut down, and restarting the atomizing device after the shutdown time of the atomizing device reaches a preset stop time, until the cumulative mist output of the atomizing device reaches the target atomization amount.

[0097] The target atomization amount represents the amount of water required to be added for the atomization device 103 to increase the humidity of the drying air to a level that does not easily cause the clothes to be dried to be over-dried.

[0098] In an embodiment of the present application, the controller can determine the target atomization amount of the atomizing device 103 according to the moisture content of the dry air to determine the atomization amount to be output by the atomizing device 103, that is, the weight of the small particle droplets to be sprayed, and recycle the execution of the steps of controlling the atomizing device 103 to shut down when the duration of starting the atomizing device 103 reaches the preset operating duration, and restarting the atomizing device 103 after the shutdown duration of the atomizing device 103 reaches the preset stop duration, until the cumulative mist output of the atomizing device 103 reaches the target atomization amount, so that the atomizing device 103 can realize alternating intermittent operation under the control of the controller, thereby facilitating the condenser 106 to fully evaporate the small particle droplets sprayed by the atomizing device 103, and it is not easy for the atomizing device 103 to spray too many small particle droplets, resulting in failure to evaporate after heat exchange with the refrigerant in the condenser 106, thereby reducing the efficiency of increasing the humidity of the dry air.

[0099] In addition, the preset operating time can be flexibly set as needed, and there is no restriction here. At the same time, in the process of controlling the start of the atomizing device 103 during the preset operating time, if the atomizing amount output by the atomizing device 103 corresponding to the preset operating time does not reach the atomizing amount output by the rated output power of the atomizing device 103, the output power of the atomizing device 103 is controlled to be lowered, so that the atomizing device 103 continues to output the atomizing amount during the preset operating time, and ensures that the cumulative mist output of the atomizing device 103 during the preset operating time reaches the atomizing amount output corresponding to the preset operating time, so that the atomizing device 103 can achieve small-displacement continuous operation under the control of the controller, and further facilitates the condenser 106 to fully evaporate the small particle droplets sprayed by the atomizing device 103.

[0100] Figure 5 A control method for a clothes dryer provided in an embodiment of the present application is combined with Figure 1-Figure 4 The structural diagram of the clothes dryer in FIG. 1 , the control method of the clothes dryer includes the following steps S501 to S512:

[0101] Step S501, obtaining the moisture content of the dry air in the box.

[0102] Step S502, determining whether the acquired moisture content exceeds a preset moisture content threshold.

[0103] The preset moisture content threshold may be a preset moisture content threshold corresponding to the material of the clothes to be dried in the box.

[0104] In step S502, if the judgment is yes, it means that the clothes to be dried are not over-dried under the drying of the drying air, and the moisture in the clothes to be dried is sufficient and does not need to be replenished, then the process jumps to step S501, that is, continues to execute the step of obtaining the moisture content of the drying air in the box. Correspondingly, if the judgment is no, it means that the clothes to be dried have lost too much moisture under the drying of the drying air and are very likely to be over-dried, then steps S503 to S512 are executed.

[0105] Step S503, obtaining the load weight and clothing material corresponding to the clothes to be dried in the box.

[0106] Step S504, determining the humidity range, temperature range and target control time according to the load weight and clothing material.

[0107] Step S505, obtaining the humidity value of the clothes to be dried in the box and the temperature value of the drying air in the box, and starting timing.

[0108] Step S506, determining whether the humidity value of the clothes to be dried in the box has not reached the lower limit threshold of the humidity range.

[0109] In step S506, if the judgment is yes, step S507 is executed to control the atomization device to start, and the atomization device is used to spray small particle droplets to increase the humidity of the drying air, and the moisture in the clothes to be dried is replenished by the moisture regain characteristics of the clothes to be dried, so as to achieve the purpose of avoiding overdrying of the clothes to be dried; if the judgment is no, step S508 is executed to control the atomization device to be turned off, and jump to step S506.

[0110] Step S509, determining whether the acquired temperature value of the dry air in the cabinet does not reach the lower limit threshold of the temperature range.

[0111] In step S509, if the judgment is yes, execute step S510, control the compressor to start, and jump to step S509 to increase the temperature value of the drying air to ensure that the temperature value of the drying air can dry the clothes to be dried; if the judgment is no, execute step S511, control the compressor to shut down, and jump to step S509.

[0112] Step S512, if the timing duration reaches the target control duration, the atomizing device is controlled to be turned off to ensure that the clothes to be dried do not need further water replenishment and are not prone to overdrying, thereby controlling the atomizing device to be turned off to avoid continuous water replenishment of the clothes to be dried, which prolongs the drying time of the clothes dryer for the clothes to be dried.

[0113] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application.

[0114] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A clothes dryer, characterized in that: include: Box; A heating device and an atomizing device are arranged in the box; The heating device comprises a fan, an evaporator and a condenser, wherein the fan is used to push air to pass through the evaporator and the condenser in sequence to form dry air and then transport it into the box; The atomizing device is disposed between the evaporator and the condenser and is electrically connected to a controller in the housing. The controller is configured to perform the following steps: Obtaining the moisture content of the drying air in the box; If the moisture content does not exceed the preset moisture content threshold, the atomizing device is controlled to start, so that the atomizing device sprays small particle droplets to increase the humidity of the drying air.

2. The clothes dryer according to claim 1, characterized in that: The controller is further configured to perform the following steps: Before controlling the atomizing device to operate, obtaining the material of the clothes to be dried in the box; A corresponding preset moisture threshold is determined according to the material of the clothing.

3. The clothes dryer according to claim 1, characterized in that: The controller is also electrically connected to the heating device, and the controller is further configured to perform the following steps: Obtaining the load weight and clothing material corresponding to the clothes to be dried in the box; The operating parameters of the heating device and the atomizing device are determined according to the load weight and the material of the clothing.

4. The clothes dryer according to claim 3, characterized in that: The operating parameter includes a target humidity, the clothes dryer further includes a humidity sensor disposed in the housing, the humidity sensor is electrically connected to the controller, and the controller is further configured to perform the following steps: Determining the target humidity according to the load weight and the clothing material; According to the correlation between the humidity value of the clothes to be dried in the box and the target humidity, the working state of the atomizing device is controlled to maintain the humidity value of the clothes to be dried at the target humidity.

5. The clothes dryer according to claim 4, characterized in that: The target humidity is a preset humidity range, and the controller is further configured to perform the following steps: When the humidity value of the clothes to be dried does not reach the lower limit threshold of the temperature range, controlling the atomization device to start; When the humidity value of the clothes to be dried exceeds the upper threshold of the temperature range, the atomizing device is controlled to be turned off.

6. The clothes dryer according to claim 3, characterized in that: The operating parameter includes a target temperature, the clothes dryer further includes a temperature sensor disposed in the box, the heating device includes a compressor, the temperature controller and the compressor are electrically connected to the controller respectively, and the controller is further configured to perform the following steps: Determining the target temperature according to the load weight and the clothing material; According to the correlation between the temperature value of the dry air in the box and the target temperature, the working state of the compressor is controlled to maintain the temperature value of the dry air at the target temperature.

7. The clothes dryer according to claim 6, characterized in that: The target temperature is a preset temperature range, and the controller is further configured to perform the following steps: When the temperature value of the clothes to be dried does not reach the lower limit threshold of the temperature range, controlling the compressor to start; When the temperature value of the clothes to be dried exceeds the upper limit threshold of the temperature interval, the compressor is controlled to be turned off.

8. The clothes dryer according to claim 4 or 6, characterized in that: The operating parameters also include a target control duration, and the controller is further configured to perform the following steps: Determining the target control time according to the load weight and the clothing material; The timing starts when the moisture content does not exceed the preset moisture content threshold, and when the timing duration reaches the target control duration, the atomization device is controlled to be turned off.

9. The clothes dryer according to claim 8, characterized in that: The controller is also configured to perform the following steps: Obtaining weight values ​​corresponding to the load weight and the clothing material respectively; The target control duration is calculated based on the weight value corresponding to the load weight and the weight value corresponding to the clothing material.

10. The clothes dryer according to claim 1, characterized in that The controller is further configured to perform the following steps: determining a target atomization amount of the atomization device according to the moisture content of the drying air; The steps of cyclically executing the steps of controlling the atomization device to shut down when the duration of starting the atomization device reaches a preset operating duration, and restarting the atomization device after the shutdown duration of the atomization device reaches a preset stop duration, until the cumulative mist output of the atomization device reaches the target atomization amount.

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