Clothes dryer and control method thereof

Abstract

The application discloses a clothes dryer and a control method thereof, relates to the technical field of clothes treatment, and aims to solve the problems of low accuracy and great difficulty in judging the drying degree of the clothes dryer. The clothes dryer comprises a box body, a clothes drying cylinder, a fan, a heater, a detector and a controller. The controller is configured to control the fan to start, acquire the ambient temperature and the temperature of circulating gas, control the heater to start, determine a first running time, which is the running time of the clothes dryer when the temperature of the circulating gas reaches a first preset temperature, determine a second running time, which is the running time of the clothes dryer when the temperature of the circulating gas reaches a second preset temperature, determine the stop time of the clothes dryer according to the difference between the second running time and the first running time, wherein the first running time is less than the second running time, and control the clothes dryer to stop running when the clothes dryer runs to the stop time.

Description

Technical Field

[0001] This invention relates to the field of clothing processing technology, and in particular to a clothes dryer and its control method. Background Technology

[0002] With the fast pace of life and higher living standards, more and more families are using clothes dryers to dry their clothes. It is important to accurately judge the drying time when using a clothes dryer.

[0003] Some dryers in related technologies determine the degree of drying and the required drying time by detecting the resistance of the clothes or the temperature of the internal circulating gas, thus determining the dryer's shutdown time. However, during operation, if clothes become tangled (dry on the outside but wet on the inside) or if there are few clothes, poor contact with the resistance detection metal plate may occur. In such cases, the dryer will detect a higher resistance value, prematurely determining that the clothes are dry and stopping prematurely, even though the clothes are not completely dry, resulting in low accuracy. Furthermore, using the temperature of the internal circulating gas to determine the degree of drying requires continuous monitoring of the circulating gas temperature throughout the dryer's operation, increasing the difficulty of the determination. Therefore, dryers in these technologies suffer from low accuracy and high difficulty in determining the degree of drying. Summary of the Invention

[0004] The embodiments of this application provide a clothes dryer and its control method, which solves the problems of low accuracy and difficulty in judging the degree of drying.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, this application provides a clothes dryer, which includes:

[0007] The box-shaped enclosure forms a circulation channel;

[0008] A clothes dryer, located inside the box, is used to hold clothes to be dried. One end of the circulation channel is connected to the inlet of the clothes dryer, and the other end is connected to the outlet of the clothes dryer.

[0009] The fan, located inside the housing, is used to create circulating gas between the circulation channel and the drying drum;

[0010] The heater, located inside the circulation channel, is used to heat the circulating gas;

[0011] Detectors are used to detect ambient temperature and the temperature of circulating gas;

[0012] The controller, electrically connected to each of the fan, heater, and detector, is configured as follows:

[0013] Control the fan to start;

[0014] Obtain the ambient temperature and the temperature of the circulating gas;

[0015] Control the heater to start;

[0016] The first running time is determined as the running time of the dryer when the temperature of the circulating gas reaches the first preset temperature, wherein the first preset temperature is greater than the ambient temperature.

[0017] A second running time is determined, which is the running time of the dryer when the temperature of the circulating gas reaches a second preset temperature, wherein the second preset temperature is greater than the first preset temperature;

[0018] The stop time of the dryer is determined based on the difference between the second running time and the first running time, wherein the first running time is less than the second running time;

[0019] When the dryer reaches its stop time, control the dryer to stop running.

[0020] The technical solution provided in this application provides at least the following beneficial effects: After the heater of the dryer is started, the temperature of the circulating gas remains consistent with the temperature of the clothes to be dried. It is understood that, given a fixed load on the drying drum in the dryer, the drying time required for the clothes to be dried is also fixed, and the difference between the second running time and the first running time is also determined. Therefore, the dryer of this application can determine the stop time of the dryer based on the difference between the second running time and the first running time.

[0021] The dryer provided in this application determines the stop time of the dryer by using the difference between the second running time and the first running time. This can avoid the adverse effects of the resistance of the clothes on the drying judgment, and make the dryer stop running at the accurate stop time, thereby improving the judgment accuracy.

[0022] Furthermore, the first running time is the time the dryer has been running when the temperature of the circulating gas reaches the first preset temperature, and the second running time is the time the dryer has been running when the temperature of the circulating gas reaches the second preset temperature. The dryer of this application can determine the stop time of the dryer when the temperature of the circulating gas reaches the second preset temperature, that is, predict the degree of drying of the clothes, without having to continuously monitor the temperature of the circulating gas throughout the entire operation of the dryer, which can reduce the difficulty of judgment.

[0023] Therefore, the dryer of this application can solve the problems of low accuracy and difficulty in judging the degree of drying.

[0024] In some embodiments, the controller is configured to activate the heater if the temperature of the circulating gas is less than or equal to a first preset temperature. This avoids heat exchange between the clothes to be dried and the circulating gas when the initial temperature is high, ensuring that the temperature of the circulating gas reaches a second preset temperature under the action of the heater. This prevents the initial temperature of the clothes from affecting the accuracy of the controller in determining the dryer's stop time, thereby improving the accuracy of the judgment.

[0025] In some embodiments, the controller is configured to start the heater after the fan has been running for a first preset time. This allows the circulating gas to exchange heat with the clothes to be dried, ensuring that their temperatures are consistent. Once started, the heater can immediately heat the clothes using the circulating gas, reducing its operating time and thus saving energy and improving energy efficiency.

[0026] In some embodiments, the controller is configured to start the heater by controlling the following: after the fan has run for a first preset time, if the temperature of the circulating gas is less than or equal to a first preset temperature, the heater is started, wherein the first preset value is less than a second preset value. This ensures sufficient heat exchange between the circulating gas and the clothes to be dried, maintaining a consistent temperature between them. Once started, the heater can immediately heat the clothes through the circulating gas, reducing the heater's operating time and thus saving energy and improving energy efficiency. Furthermore, this avoids heat exchange between the clothes and the circulating gas when the initial temperature is high, preventing the circulating gas temperature from exceeding the first preset temperature. This ensures that the circulating gas temperature reaches the second preset temperature under the heater's influence, preventing the initial temperature of the clothes from affecting the controller's accuracy in determining the dryer's stop time, thereby improving accuracy.

[0027] In some embodiments, the controller executes the control of the heater startup by: acquiring the temperature change rate of the circulating gas; if the temperature change rate is greater than or equal to a first preset value and less than or equal to a second preset value, controlling the heater startup, wherein the first preset value is less than the second preset value. This ensures sufficient heat exchange between the circulating gas and the clothes to be dried, maintaining a consistent temperature between them. Once the heater starts, it can immediately heat the clothes through the circulating gas, reducing the heater's operating time and thus saving energy and improving energy efficiency. Furthermore, after sufficient heat exchange between the circulating gas and the clothes, the temperature of both remains consistent with the ambient temperature. Since the ambient temperature is lower than the first preset temperature, the temperature of the circulating gas can be ensured to reach the second preset temperature under the action of the heater. This prevents the initial temperature of the clothes from affecting the accuracy of the controller in determining the dryer's stop time, thereby improving the accuracy of the judgment.

[0028] In some embodiments, the controller determines the dryer's stop time based on the difference between the second running time and the first running time. Specifically, this is configured to: determine the load of the drying drum based on the difference; and determine the stop time based on the load. It is understood that the difference between the second running time and the first running time corresponds to the load of the drying drum. The larger the load of the drying drum, the longer it takes for the temperature of the circulating gas to reach the second preset temperature from the first preset temperature, and thus the larger the difference between the second running time and the first running time. Similarly, the larger the difference between the second running time and the first running time, the larger the load of the drying drum. Furthermore, when the load of the drying drum is constant, the time required to dry the clothes is constant, thus the dryer's stop time can be determined based on the load. Therefore, the dryer of this application can first determine the load of the drying drum based on the difference between the second running time and the first running time, and then determine the dryer's stop time. This allows for a more accurate determination of the dryer's stop time.

[0029] In some embodiments, the controller stores multiple load levels and multiple difference levels, wherein the load levels and difference levels increase sequentially, and one load level corresponds to one difference level. The controller determines the load of the dryer drum based on the difference, specifically configured as follows: if the difference is less than or equal to the larger of two adjacent difference levels and greater than the smaller one, the load is determined to be the load level corresponding to the larger one; if the difference is less than or equal to the smallest of the multiple difference levels, the load is determined to be the smallest of the multiple load levels. This ensures that the load determined by the controller is greater than or equal to the actual load, thereby ensuring that the dryer's stop time is greater than or equal to the required drying time for the clothes, thus guaranteeing that the clothes in the dryer drum are dried.

[0030] In some embodiments, the controller stores multiple preset stop times, which increase sequentially, with each preset stop time corresponding to a load level. The controller determines the stop time based on the load, specifically configured to: determine the load level of the load, and set the stop time to the preset stop time corresponding to that load level. In this way, there is a one-to-one correspondence between load levels and preset stop times. When determining the load on the dryer drum, the stop time of the dryer can be determined directly, reducing the difficulty of the judgment.

[0031] In some embodiments, the controller stores multiple preset stop times, which increase sequentially, and each preset stop time corresponds to a load level; the larger of two adjacent load levels is M. i+1 The smaller one is M i The larger of two adjacent difference levels is T. i+1 The smaller one is T i The larger of two adjacent preset stop times is t. i+1 The smaller one is t i The difference between the second running time and the first running time is T0. The controller determines the stop time based on the load, specifically configured as follows: if the load is 0 kg, the stop time is the second running time; if the load is greater than the smaller of two adjacent load levels and less than or equal to the larger of two adjacent load levels, where the smaller of the two adjacent load levels is 0 kg, the stop time is the preset stop time corresponding to the larger of the two adjacent load levels; if the load is greater than the larger of two adjacent load levels, the stop time is t0, where t0 = t i +( t i+1 -t i ) (T0-T) i ) / ( T i+1 -T i ), where i is a positive integer. This way, when the dryer's load is 0 kg, the dryer can stop immediately during the second running time, preventing it from running idle. When the dryer's load is small but greater than 0 kg, the dryer's running time is short. Setting a larger preset stop time ensures sufficient running time to dry the clothes. When the dryer's load is large, the dryer's running time is longer, allowing the difference between the second and first running times to strictly correspond to the preset stop time. This ensures clothes are dried while reducing the dryer's running time, saving energy and improving energy efficiency.

[0032] Secondly, embodiments of this application provide a control method for a clothes dryer, the control method comprising:

[0033] Control the fan to start;

[0034] Obtain the ambient temperature and the temperature of the circulating gas;

[0035] Control the heater to start;

[0036] The first running time is determined as the running time of the dryer when the temperature of the circulating gas reaches the first preset temperature, wherein the first preset temperature is greater than the ambient temperature.

[0037] A second running time is determined, which is the running time of the dryer when the temperature of the circulating gas reaches a second preset temperature, wherein the second preset temperature is greater than the first preset temperature;

[0038] The stop time of the dryer is determined based on the difference between the second running time and the first running time, wherein the first running time is less than the second running time;

[0039] When the dryer reaches its stop time, control the dryer to stop running.

[0040] Thirdly, embodiments of this application provide a computer-readable storage medium storing instructions that, when executed on any of the aforementioned devices, cause the device to perform the aforementioned control method for the clothes dryer.

[0041] Fourthly, embodiments of this application provide a chip, including: a processor and a memory; the memory is used to store computer execution instructions, the processor is connected to the memory, and when the chip is running, the processor executes the computer execution instructions stored in the memory to cause the chip to perform the above-described control method for a clothes dryer.

[0042] Fifthly, embodiments of this application provide a computer program product containing instructions that, when run on any of the aforementioned devices, causes the device to execute the aforementioned control method for the clothes dryer.

[0043] It should be noted that the aforementioned computer instructions may be stored, in whole or in part, on a computer-readable storage medium. This computer-readable storage medium may be packaged together with the controller's processor or may be packaged separately from the controller's processor; this application does not impose any limitations on this.

[0044] The beneficial effects described in aspects two through five of this application can be referred to the analysis of the beneficial effects of aspect one, and will not be repeated here. Attached Figure Description

[0045] Figure 1This is one of the structural schematic diagrams of a clothes dryer provided in the embodiments of this application;

[0046] Figure 2 A schematic diagram of the circuit connection structure of a clothes dryer provided in an embodiment of this application;

[0047] Figure 3 This is a second schematic diagram of the structure of a clothes dryer provided in an embodiment of this application;

[0048] Figure 4 A schematic diagram of the display interface of a clothes dryer provided in an embodiment of this application;

[0049] Figure 5 This is a schematic diagram of a display interface of a terminal device provided in an embodiment of this application;

[0050] Figure 6 This is one of the flowcharts of a control method for a clothes dryer provided in an embodiment of this application;

[0051] Figure 7 This is a second flowchart of a control method for a clothes dryer provided in an embodiment of this application;

[0052] Figure 8 This is the third flowchart of a control method for a clothes dryer provided in this application embodiment;

[0053] Figure 9 This is the fourth flowchart of a control method for a clothes dryer provided in an embodiment of this application;

[0054] Figure 10 This is the fifth flowchart of a control method for a clothes dryer provided in this application embodiment;

[0055] Figure 11 This is the sixth flowchart of a control method for a clothes dryer provided in this application embodiment;

[0056] Figure 12 This is the seventh flowchart of a control method for a clothes dryer provided in an embodiment of this application;

[0057] Figure 13 This is the eighth flowchart of a control method for a clothes dryer provided in this application embodiment;

[0058] Figure 14 This is the ninth flowchart of a control method for a clothes dryer provided in an embodiment of this application;

[0059] Figure 15 One of the schematic diagrams illustrating the working process of a clothes dryer provided in this application embodiment;

[0060] Figure 16 This is a second schematic diagram of the working process of a clothes dryer provided in an embodiment of this application. Detailed Implementation

[0061] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0062] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0063] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0064] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, when describing pipelines or channels, the terms "connection" and "linking" used in this application have the meaning of establishing electrical conductivity. The specific meaning needs to be understood in conjunction with the context.

[0065] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0066] To facilitate understanding, this application first describes the working principle of the dryer. When the dryer is working, the heater heats the gas in the circulation system. After a certain period of time, the gas in the circulation system will be at a high temperature. The clothes in the drying drum evaporate into the circulation gas at a high temperature, forming a high-temperature and high-humidity circulation gas. When this high-temperature and high-humidity circulation gas passes through the low-temperature condenser, condensate will be released. Finally, the circulation gas will release all the water in the clothes at the condenser, completing the drying of the clothes.

[0067] As the humidity of clothing gradually decreases, its resistance also decreases, while the temperature of the circulating gas gradually increases. Related technologies typically determine the dryness of clothing by judging either the resistance or the temperature of the circulating gas. However, during operation, if clothing becomes tangled (dry on the outside but wet on the inside) or if there are few clothes, poor contact with the resistance detection plate can occur. In such cases, the dryer may detect a higher resistance, prematurely determining that the clothes are dry and stopping prematurely even though the clothes are not truly dry, resulting in low accuracy. Furthermore, using the temperature of the circulating gas to determine the dryness requires continuous monitoring of the gas temperature throughout the dryer's operation, increasing the difficulty of accurate assessment. Therefore, dryers in these technologies suffer from low accuracy and difficulty in determining the degree of dryness.

[0068] To address the aforementioned issues, this application provides a clothes dryer. The dryer's controller acquires the temperature of the circulating gas and compares it with a first preset temperature and a second preset temperature to determine the first and second running times of the dryer. The stop time of the dryer is then determined based on the difference between the second and first running times, where the first running time is shorter than the second running time. It is understood that when the difference between the second and first running times is determined, the time required to dry the clothes can also be determined. This application determines whether the clothes are dry by using the difference between the second and first running times, avoiding the adverse effects of clothing resistance errors on the drying determination, ensuring the dryer stops operating at the precise stop time and improving accuracy. Furthermore, this application's dryer can determine the stop time when the circulating gas temperature reaches the second preset temperature, i.e., predict the drying time of the clothes, eliminating the need for continuous monitoring of the circulating gas temperature throughout the entire operation of the dryer, thus reducing the difficulty of determination. In this way, this application can accurately determine the drying time of clothes, improving the user experience and reducing the difficulty of determination, thereby reducing manufacturing complexity. The drying time is the time the dryer runs while the moisture content of the clothes drops from 60% to 0%, i.e., when the moisture content of the clothes to be dried is 60%.

[0069] Figure 1 This is a schematic diagram of the structure of a clothes dryer 100 provided in an embodiment of this application. Figure 1 As shown, the dryer 100 may include: a housing 10, a drying drum 20, a fan 30, a heater 40, a detector 50, and a controller 60. Figure 1 (Not shown in the image).

[0070] The housing 10 protects the internal electrical components of the dryer 100, sealing off the channels between the inside and outside of the dryer 100 to prevent damage to the electrical components. The drying drum 20 is housed within the housing 10 and is used to hold clothes to be dried. The housing 10 also forms a circulation channel 70, one end of which connects to the inlet 21 of the drying drum 20, and the other end connects to the outlet 22 of the drying drum 20, forming a closed-loop circulation path between the circulation channel 70 and the drying drum 20. A fan 30 is located within the housing 10, and when the fan 30 operates, it generates circulating gas within the circulation path between the circulation channel 70 and the drying drum 20.

[0071] Furthermore, the heater 40 is located within the circulation channel 70, and the heater 40 can heat the circulating gas after being started. The detector 50 is used to detect the ambient temperature and the temperature of the circulating gas. The detector 50 includes an ambient temperature detector 52 and a circulating gas temperature detector 51. The ambient temperature detector 52 is located outside the housing 10 to detect the ambient temperature, and the circulating gas temperature detector 51 is located inside the circulation channel 70 to detect the circulating gas temperature.

[0072] In one possible implementation, detector 50 may further include a timer for detecting the running time of dryer 100. For example, the timer may start when heater 40 is activated, thus allowing the running time of dryer 100 to be obtained.

[0073] In another possible implementation, the controller 60 includes a timing module for detecting the running time of the dryer 100. For example, the timing module can start timing when the heater 40 is started, thus obtaining the running time of the dryer 100.

[0074] It should be noted that before the heater 40 is started, the running time of the dryer 100 is greatly affected by the initial temperature of the clothes to be dried, which will affect the controller 60's judgment of the drying time. In this application, the running time of the dryer 100 is calculated from the moment the heater 40 is started. This improves the accuracy of the controller 60's judgment of the drying time.

[0075] In some embodiments, controller 60 refers to a device that can generate operation control signals based on instruction opcodes and timing signals to instruct the dryer 100 to execute control instructions. Exemplarily, controller 60 can be a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a programmable logic device (PLD), a microprocessor, a microcontroller 60, or any combination thereof. Controller 60 can also be other devices with processing functions, such as circuits, devices, or software modules; this application embodiment does not impose any limitations on this.

[0076] For example, after the user selects and starts the drying program, the controller 60 can control the operation of various electrical components to dry the clothes in the drying drum 20 to meet the user's needs.

[0077] Figure 2 This illustration shows a circuit connection structure diagram of a clothes dryer 100 provided in an embodiment of this application, as shown below. Figure 2 As shown, the controller 60 can be electrically connected to each of the fan 30, heater 40, and detector 50. The controller 60 can be configured to: control the fan 30 to start during the operation of the drying program; acquire the ambient temperature and the temperature of the circulating gas; control the heater 40 to start; determine a first operating time, which is the time the dryer 100 has been running when the temperature of the circulating gas reaches a first preset temperature, wherein the first preset temperature is greater than the ambient temperature; determine a second operating time, which is the time the dryer 100 has been running when the temperature of the circulating gas reaches a second preset temperature, wherein the second preset temperature is greater than the first preset temperature; determine a stop time for the dryer 100 based on the difference between the second operating time and the first operating time, wherein the first operating time is less than the second operating time; and control the dryer 100 to stop operating when the stop time is reached.

[0078] In this application, during the drying process, after the heater 40 of the dryer 100 is activated, the temperature of the circulating gas remains consistent with the temperature of the clothes to be dried. It is understood that, given a fixed load on the drying drum 20 in the dryer 100, the required drying time for the clothes is also fixed, and the difference between the second running time and the first running time is also determined. Therefore, the dryer 100 of this application can determine its stopping time based on the difference between the second running time and the first running time.

[0079] The dryer 100 provided in this application determines the stop time of the dryer 100 by the difference between the second running time and the first running time. This can avoid the adverse effects of the resistance of the clothes on the drying judgment, and make the dryer 100 stop running at the accurate stop time, thereby improving the judgment accuracy.

[0080] Furthermore, the first running time is the running time of the dryer 100 when the temperature of the circulating gas reaches the first preset temperature, and the second running time is the running time of the dryer 100 when the temperature of the circulating gas reaches the second preset temperature. The dryer 100 of this application can determine the stop time of the dryer 100 when the temperature of the circulating gas reaches the second preset temperature, that is, predict the degree of drying of the clothes, without having to continuously monitor the temperature of the circulating gas throughout the entire operation of the dryer 100, which can reduce the difficulty of judgment.

[0081] Therefore, the dryer 100 of this application can solve the problems of low accuracy and difficulty in judging the degree of drying.

[0082] In some embodiments, such as Figure 1 As shown, the dryer 100 may further include a door 80, which is disposed on the housing 10 and faces the drying drum 20. By opening and closing the door 80, clothes can be put in and taken out of the drying drum 20.

[0083] Figure 3 This illustration shows a structural schematic diagram of a clothes dryer 100 provided in an embodiment of this application. In some embodiments, such as... Figure 3 As shown, the dryer 100 may further include a condenser 91, and the circulation channel 70 includes a front air duct 71 (on the side near the door 80), a bottom air duct 72, and a rear air duct 73 (on the side away from the door 80). The condenser 91 may be disposed in the bottom air duct 72, and the heater 40 may be disposed in the rear air duct 73. The heater 40 may be a heating assembly with a heating tube or heating element.

[0084] Thus, when the high-temperature circulating gas heated by the heater 40 passes through the drying drum 20, the moisture in the clothes to be dried in the drying drum 20 evaporates into the circulating gas at high temperature, forming a high-temperature and high-humidity circulating gas. This high-temperature and high-humidity circulating gas passes through the front air duct 71 and the bottom air duct 72 to reach the condenser 91 at the bottom of the dryer 100. Under the action of the condenser 91, the high-temperature and high-humidity circulating gas will condense water. The circulating gas then enters the rear air duct 73, where it is heated by the heater 40. The circulating gas is then converted into high-temperature circulating gas to complete the circulation loop.

[0085] In some embodiments, such as Figure 3As shown, the fan 30 can be a ventilator, blower, variable frequency fan, etc. The fan 30 can be installed in, for example... Figure 3 The inlet of the dryer 20 (i.e., the air inlet side of the heater 40) is shown, so that the hot air generated by the condenser 91 is blown into the dryer 20, and the air can circulate in a directional manner in the circulation duct.

[0086] For example, such as Figure 3 As shown, the fan 30 may include a motor 31 and an impeller 32. The motor 31 may be electrically connected to the controller 60, and the impeller 32 is connected to the shaft of the motor 31. The impeller 32 is disposed in the rear air duct 73. When the motor 31 is started, the impeller 32 rotates to blow air onto the heater 40 to improve the flow of the circulating gas.

[0087] In some embodiments, the dryer 100 further includes a water storage tank 92, which may be disposed in the bottom air duct 72 and below the condenser 91, for receiving condensate dripping from the condenser 91.

[0088] In some embodiments, a water valve may also be provided below the water storage tank 92, which is used to control the outflow of condensate from the water storage tank 92.

[0089] In some embodiments, the dryer 100 may further include a display, which may be a liquid crystal display or an organic light-emitting diode (OLED) display. The specific type, size, and resolution of the display are not limited, but those skilled in the art will understand that the display can be modified in terms of performance and configuration as needed.

[0090] In some embodiments, the display may be used to show the control panel of the dryer 100 or operating information of the dryer 100. For example, such as... Figure 4 As shown, the dryer 100 displays operating information such as the running time and the currently running drying program on the monitor.

[0091] In some embodiments, the dryer 100 may further include a voice prompt device for playing voice prompt information according to a program. The content of the voice prompt information may be pre-set by the dryer 100 manufacturer or set by the user through a human-machine interface device. For example, when the controller 60 detects that the clothes have met the drying end conditions (when the dryer 100 has reached its stop time), the controller 60 may control the voice prompt device to play a prompt message such as "Drying complete".

[0092] In some embodiments, the dryer 100 may further include a human-computer interaction device for enabling interaction between the user and the dryer 100. The human-computer interaction device may include one or more of physical buttons or a touch-screen display panel. For example, the user can use the human-computer interaction device to set the drying program that the dryer 100 should run.

[0093] In some embodiments, the dryer 100 may further include a communication device, which is a component for communicating with external devices or servers according to various communication protocol types. For example, the communication device may include at least one of the following: a Wi-Fi module, a Bluetooth module, a wired Ethernet module, a near field communication (NFC) module, and other network communication protocol chips or NFC protocol chips, as well as an infrared receiver. The communication device can be used to communicate with other devices or communication networks (such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.).

[0094] In some embodiments, the controller 60 can communicate with a user-used terminal device via a communication device. For example, such as... Figure 5 As shown, the user's terminal device is a mobile phone. The controller 60 receives the drying program selected by the user on the mobile phone through the communication device, and then controls the electrical components of the dryer 100 to start executing the drying program.

[0095] In some embodiments, the dryer 100 may further include a power supply, which, under the control of the controller 60, provides power supply support for the dryer 100 by using electricity input from an external power source.

[0096] Based on the above-described clothes dryer, the control method of the clothes dryer according to an embodiment of this application will be described below with reference to the accompanying drawings. This method is applied to a controller, which can be the controller described above.

[0097] This application also provides a control method for a clothes dryer, such as... Figure 6 As shown, the method includes the following steps:

[0098] S100, the controller controls the start of the fan.

[0099] In this system, when the drying program of the dryer is started, the control fan starts and runs until the drying program ends. In one possible implementation, the start of the dryer program can be triggered by the user, meaning the user controls the start of the dryer program.

[0100] For example, a user can control the start of the dryer program by operating the display panel of the touch dryer.

[0101] For example, users can also establish a communication connection with the dryer through a mobile device, thereby controlling the start of the dryer program on the mobile device, which is not specifically limited in this application.

[0102] S200, the controller acquires the ambient temperature and the temperature of the circulating gas.

[0103] The controller is connected to the detector, which can transmit the detected ambient temperature and circulating gas temperature signals to the controller in real time, and the controller can receive the temperature signals.

[0104] S300, the controller controls the heater to start.

[0105] In some embodiments, after the controller acquires the ambient temperature and the temperature of the circulating gas, it determines whether to start the heater based on the ambient temperature and the temperature of the circulating gas.

[0106] Example 1, such as Figure 7 As shown, if the temperature of the circulating gas is less than or equal to the first preset temperature, the controller controls the heater to start. That is, it determines whether the temperature of the circulating gas is less than or equal to the first preset temperature; if so, the controller controls the heater to start; if not, it continues to compare the temperature of the circulating gas with the first preset temperature until the temperature of the circulating gas is less than or equal to the first preset temperature.

[0107] It should be noted that if the temperature of the circulating gas is still higher than the first preset temperature after the second preset time, the controller will stop the dryer and display an alarm message. The second preset time is greater than or equal to 10 minutes.

[0108] After the fan starts, the circulating gas exchanges heat with the clothes to be dried in the drying drum. When the temperature of the clothes to be dried is higher than the first preset temperature, the temperature of the circulating gas will rise above the first preset temperature.

[0109] Understandably, when the temperature of the circulating gas is less than or equal to the first preset temperature, the controller activates the heater. This prevents the clothes to be dried from exchanging heat with the circulating gas when the initial temperature is high, ensuring that the temperature of the circulating gas is higher than the first preset temperature. This guarantees that the temperature of the circulating gas reaches the second preset temperature under the action of the heater, thus preventing the initial temperature of the clothes from affecting the accuracy of the controller in determining the stop time of the dryer, thereby improving the accuracy of the judgment.

[0110] Example 2, such as Figure 8 As shown, after the fan has been running for the first preset time, the controller starts the heater.

[0111] That is, determine whether the fan running time is greater than or equal to the first preset time; if so, the controller controls the heater to start; if not, continue to compare and determine the fan running time and the first preset time until the fan running time is greater than or equal to the first preset time.

[0112] It should be noted that if the heater still does not start after the second preset time, the controller will stop the dryer and display an alarm message. The second preset time is greater than or equal to 10 minutes.

[0113] Understandably, after the fan starts, the circulating gas will exchange heat with the clothes to be dried in the drying drum. After the fan runs for the first preset time, the circulating gas and the clothes to be dried will have fully exchanged heat, so that the temperature of the circulating gas and the clothes to be dried can be kept consistent. After the heater starts, it can immediately heat the clothes to be dried through the circulating gas, which can reduce the working time of the heater, which is conducive to saving electricity and improving energy efficiency.

[0114] The first preset time is greater than or equal to 1 minute, and the value of the first preset time can be 1 minute, 2 minutes, 3 minutes, 4 minutes, 5 minutes, 6 minutes, etc. The value of the first preset time can be set according to the maximum load of the dryer.

[0115] Example 3, such as Figure 9 As shown, after the fan has been running for a first preset time, if the temperature of the circulating gas is less than or equal to the first preset temperature, the controller will start the heater.

[0116] Specifically, the system determines whether the fan running time is greater than or equal to a first preset time. If not, it continues to compare the fan running time with the first preset time until the fan running time is greater than or equal to the first preset time. If yes, it continues to determine whether the temperature of the circulating gas is less than or equal to a first preset temperature. When determining whether the temperature of the circulating gas is less than or equal to the first preset temperature, if yes, the controller starts the heater; if no, it continues to compare the temperature of the circulating gas with the first preset temperature until the temperature of the circulating gas is less than or equal to the first preset temperature.

[0117] It should be noted that if the heater still does not start after the second preset time, the controller will stop the dryer and display an alarm message. The second preset time is greater than or equal to 10 minutes.

[0118] Understandably, based on Example 2, the controller will only start the heater if the temperature of the circulating gas is less than or equal to the first preset temperature.

[0119] In this way, the dryer can achieve the same effect as both Example 1 and Example 2 in this example.

[0120] In other words, in this example, the circulating gas and the clothes to be dried exchange heat fully, which can keep the temperature of the circulating gas and the clothes to be dried consistent. After the heater is started, it can immediately heat the clothes to be dried through the circulating gas, which can reduce the working time of the heater, and help save electricity and improve energy efficiency.

[0121] In addition, this can also prevent the initial temperature of the clothes to be dried from exchanging heat with the circulating gas when it is high, so that the temperature of the circulating gas is higher than the first preset temperature. This ensures that the temperature of the circulating gas reaches the second preset temperature under the action of the heater, thereby preventing the initial temperature of the clothes from affecting the accuracy of the controller in determining the stop time of the dryer, thus improving the accuracy of the judgment.

[0122] Example 4, such as Figure 10 As shown, the controller acquires the temperature change rate of the circulating gas; if the temperature change rate is greater than or equal to a first preset value and less than or equal to a second preset value, the controller starts the heater, wherein the first preset value is less than the second preset value.

[0123] That is, after the controller obtains the temperature change rate of the circulating gas, it determines whether the temperature change rate is greater than or equal to the first preset value and less than or equal to the second preset value; if so, the controller controls the heater to start; if not, it continues to determine whether the temperature change rate is greater than or equal to the first preset value and less than or equal to the second preset value.

[0124] It should be noted that if the heater still does not start after the second preset time, the controller will stop the dryer and display an alarm message. The second preset time is greater than or equal to 10 minutes.

[0125] The controller can obtain the temperature of the circulating gas at the current moment and the previous moment. The temperature change rate of the circulating gas is the difference between the temperature of the circulating gas at the current moment and the previous moment divided by the temperature of the circulating gas at the previous moment.

[0126] In one possible implementation, the controller can acquire the temperature of the circulating gas at preset time intervals using a detector, and the controller can store the correspondence between the running time and the temperature of the circulating gas in a memory.

[0127] In another possible implementation, the controller can also acquire the resistance value of the clothing in real time through a detector and store the acquired resistance value of the clothing in a memory.

[0128] In addition, the first preset value is greater than or equal to 0.8 and less than 1, and the second preset value is greater than 1 and less than or equal to 1.2. The first preset value can be 0.8, 0.85, 0.9, 0.95, 0.98, etc., and the second preset value can be 1.05, 1.1, 1.15, 1.18, etc.

[0129] Understandably, after the fan starts, the circulating gas exchanges heat with the clothes to be dried. When the temperature change rate is greater than or equal to the first preset value and less than or equal to the second preset value, the temperature change rate is close to 1, and the temperature of the circulating gas and the clothes to be dried are consistent. After the heater starts, it can immediately heat the clothes to be dried through the circulating gas, which can reduce the working time of the heater, thus saving electricity and improving energy efficiency.

[0130] Example 5, such as Figure 11 As shown, the temperature change rate of the circulating gas is controlled; if the temperature change rate is greater than or equal to a first preset value and less than or equal to a second preset value, and the temperature of the circulating gas is less than or equal to the first preset temperature, the heater is controlled to start, wherein the first preset value is less than the second preset value.

[0131] That is, after the controller obtains the temperature change rate of the circulating gas, it determines whether the temperature change rate is greater than or equal to a first preset value and less than or equal to a second preset value; if not, it continues to determine whether the temperature change rate is greater than or equal to the first preset value and less than or equal to the second preset value; if yes, it continues to determine whether the temperature of the circulating gas is less than or equal to the first preset temperature. When determining whether the temperature of the circulating gas is less than or equal to the first preset temperature, if yes, the controller controls the heater to start; if no, it continues to compare the temperature of the circulating gas with the first preset temperature until the temperature of the circulating gas is less than or equal to the first preset temperature.

[0132] It should be noted that if the heater still does not start after the second preset time, the controller will stop the dryer and display an alarm message. The second preset time is greater than or equal to 10 minutes.

[0133] Based on Example 4, this controller only activates the heater when the temperature of the circulating gas is less than or equal to the first preset temperature. This avoids heat exchange between the clothes to be dried and the circulating gas when the initial temperature is high, ensuring the circulating gas temperature reaches the second preset temperature under the heater's influence. This prevents the initial temperature of the clothes from affecting the controller's accuracy in determining the dryer's stop time, thus improving the accuracy of the judgment.

[0134] S400, The controller determines the first running time, which is the running time of the dryer when the temperature of the circulating gas reaches the first preset temperature, wherein the first preset temperature is greater than the ambient temperature.

[0135] Understandably, before the heater starts, the dryer's running time is significantly affected by the initial temperature of the clothes to be dried, which can influence the controller's judgment of the drying time. In this application, the dryer's running time is calculated from the moment the heater starts. This improves the accuracy of the dryer's controller in determining the drying time.

[0136] In addition, the first preset temperature is higher than the ambient temperature. After a first preset time, the temperature of the circulating gas becomes the same as the ambient temperature, so that the temperature of the circulating gas is lower than the first preset temperature, which can avoid the situation where the temperature of the circulating gas cannot be reduced to below the first preset temperature.

[0137] S500, the controller determines the second running time, which is the running time of the dryer when the temperature of the circulating gas reaches the second preset temperature, wherein the second preset temperature is greater than the first preset temperature.

[0138] The first preset temperature is greater than or equal to 40℃ and less than or equal to 60℃, and the value of the first preset temperature can be 40℃, 45℃, 50℃, 55℃, 60℃, etc. The second preset temperature is greater than or equal to 70℃ and less than or equal to 80℃, and the value of the second preset temperature can be 70℃, 71℃, 72℃, 73℃, 74℃, 75℃, 76℃, 77℃, 78℃, 79℃, 80℃, etc.

[0139] S600. Determine the stop time of the dryer based on the difference between the second running time and the first running time, wherein the first running time is less than the second running time.

[0140] In some embodiments, such as Figure 12 As shown, the controller determines the dryer's stop time based on the difference between the second running time and the first running time, which may include the following steps:

[0141] S610. Determine the load on the clothes dryer based on the difference;

[0142] S620. Determine the stop time based on the load.

[0143] It is understandable that the difference between the second running time and the first running time corresponds to the load on the drying drum. The greater the load on the drying drum, the longer it takes for the temperature of the circulating gas to reach the second preset temperature, and thus the greater the difference between the second and first running times. Similarly, the greater the difference between the second and first running times, the greater the load on the drying drum. Furthermore, when the load on the drying drum is constant, the time required to dry clothes is constant, and the stop time of the dryer can be determined based on the load. Therefore, the dryer of this application can determine the load on the drying drum first, and then determine the stop time of the dryer, based on the difference between the second and first running times. This allows for a more accurate determination of the dryer's stop time.

[0144] In some embodiments, such as Figure 13 As shown, the controller stores multiple load levels and multiple difference levels, where the load levels increase sequentially and the difference levels increase sequentially, with one load level corresponding to one difference level.

[0145] The controller determines the load on the dryer drum based on the difference, which may include the following steps:

[0146] S611. If the difference is less than or equal to the larger of two adjacent difference levels and greater than the smaller one, determine the load level as the load level corresponding to the larger one.

[0147] S612. If the difference is less than or equal to the smallest of the multiple difference levels, the load is determined to be the smallest of the multiple load levels.

[0148] It is understandable that multiple load levels and multiple differential levels can be preset by the system, and there is a one-to-one correspondence between the multiple load levels and multiple differential levels. This correspondence table can be stored in the controller.

[0149] This allows the load determined by the controller to be greater than or equal to the actual load, thus ensuring that the dryer's stop time is greater than or equal to the drying time required for the clothes, thereby guaranteeing that the clothes in the drying drum can be dried.

[0150] In some embodiments, the controller stores a plurality of preset stop times, which increase sequentially, and each preset stop time corresponds to a load level.

[0151] The controller determines the stop time based on the load. Specifically, it can be implemented by determining the load level and setting the stop time to a preset stop time corresponding to the load level.

[0152] It is understandable that multiple differential levels and multiple preset stop times can be preset by the system, and multiple load levels and multiple preset stop times have a one-to-one correspondence. This correspondence table can be stored in the controller.

[0153] In addition, multiple differential levels and multiple preset stop times can be preset by the system. Multiple load levels and multiple preset stop times have a one-to-one correspondence, and this correspondence table can be stored in the controller.

[0154] In this way, the load level corresponds one-to-one with the preset stop time. When the load of the dryer drum is determined, the stop time of the dryer can be determined directly, which can reduce the difficulty of judgment.

[0155] In some embodiments, the controller stores multiple preset stop times, which increase sequentially, with each preset stop time corresponding to a load level; the larger of two adjacent load levels is M. i+1 The smaller one is M i The larger of two adjacent difference levels is T. i+1 The smaller one is T i The larger of two adjacent preset stop times is t. i+1 The smaller one is t i The difference between the second running time and the first running time is T0, where i is a positive integer.

[0156] like Figure 14 As shown, the controller determines the stop time based on the load, which may include the following steps:

[0157] S621. If the load is 0 kg, the stop time is the second running time.

[0158] Understandably, when the dryer's load is 0 kg, the dryer can be stopped immediately during the second running time to avoid running dry.

[0159] S622. If the load is greater than the smaller of two adjacent load levels and less than or equal to the larger of two adjacent load levels, where the smaller of the two adjacent load levels is 0 kg, the stopping time is the preset stopping time corresponding to the larger of the two adjacent load levels.

[0160] It is understandable that when the load on the dryer is small and greater than 0 kg, the dryer's running time is short. Setting a larger preset stop time as the dryer's stop time ensures that the dryer's running time is sufficient to dry the clothes, thus guaranteeing that the clothes are dried.

[0161] S623. If the load is greater than the larger of two adjacent load levels, the stopping time satisfies the preset calculation formula. Wherein, the stopping time is t0, and the preset calculation formula is: t0 = t i +( t i+1 -t i ) (T0-T) i ) / ( T i+1 -T i ) .

[0162] Understandably, when the dryer is under heavy load, the dryer will run for a longer time. This allows the difference between the second and first running times to correspond precisely with the preset stop time. This ensures that the clothes are dried while reducing the dryer's running time, thus saving energy and improving energy efficiency.

[0163] S700: When the dryer reaches its stop time, control the dryer to stop running.

[0164] Once the controller determines the stop time, it will stop the dryer when the dryer reaches the predetermined stop time.

[0165] The dryer provided in this application determines the stop time of the dryer by using the difference between the second running time and the first running time. This can avoid the adverse effects of the resistance of the clothes on the drying judgment, and make the dryer stop running at the accurate stop time, thereby improving the judgment accuracy.

[0166] Furthermore, the first running time is the time the dryer has been running when the temperature of the circulating gas reaches the first preset temperature, and the second running time is the time the dryer has been running when the temperature of the circulating gas reaches the second preset temperature. The dryer of this application can determine the stop time of the dryer when the temperature of the circulating gas reaches the second preset temperature, that is, predict the degree of drying of the clothes, without having to continuously monitor the temperature of the circulating gas throughout the entire operation of the dryer, which can reduce the difficulty of judgment.

[0167] Therefore, the dryer of this application can solve the problems of low accuracy and difficulty in judging the degree of drying.

[0168] The following is an example of how a clothes dryer performs its drying program:

[0169] Taking a dryer with a maximum load of 9Kg as an example, the dryer includes 10 load levels, namely 0Kg, 1Kg, 2Kg, 3Kg, 4Kg, 5Kg, 6Kg, 7Kg, 8Kg and 9Kg.

[0170] For example, such as Figure 15As shown, the dryer starts, and the drying program begins:

[0171] (1) First, determine whether the load is 0Kg; if yes, the dryer ends the drying program; if no, the dryer runs until the second running time.

[0172] (2) Determine again whether the load is 0Kg; if yes, the dryer ends the drying program, that is, the dryer runs until the first preset stop time (t1), and the first preset stop time is the second running time; if no, determine whether the load level is 1Kg.

[0173] (3) If the load level is 1Kg, the dryer runs until the second preset stop time (t2); otherwise, determine whether the load is 2Kg.

[0174] (4) If the load level is 2Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t2 + (t3 - t2) (T0-T2) / (T3-T2); If not, determine if the load is 3Kg.

[0175] (5) If the load level is 3Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t3 + (t4 - t3) (T0-T3) / (T4-T3); If not, determine if the load is 4Kg.

[0176] (6) If the load level is 4Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t4 + (t5 - t4) (T0-T4) / (T5-T4); If not, determine if the load is 5Kg.

[0177] (7) If the load level is 5Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t5 + (t6 - t5) (T0-T5) / (T6-T5); If not, determine if the load is 6Kg.

[0178] (8) If the load level is 6Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t6 + (t7 - t6) (T0-T6) / (T7-T6); If not, determine if the load is 7Kg.

[0179] (9) If the load rating is 7Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t7 + (t8 - t7) (T0-T7) / (T8-T7); If not, determine if the load is 8Kg.

[0180] (10) If the load level is 8Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t8 + (t9 - t8) (T0-T8) / (T9-T8); If not, determine if the load is 8Kg.

[0181] (11) If the load is not 8 kg, the dryer will run until the stop time calculated according to the preset calculation formula. The preset calculation formula is: t0 = t9 + (t 10 -t9) (T0-T9) / (T) 10 -T9).

[0182] For example, such as Figure 16 As shown, the dryer starts, and the drying program begins:

[0183] (1) First, determine whether the load is 0Kg; if yes, the dryer ends the drying program; if no, the dryer runs until the second running time.

[0184] (2) Determine again whether the load is 0Kg; if yes, the dryer ends the drying program, that is, the dryer runs until the first preset stop time (t1), and the first preset stop time is the second running time; if no, determine whether the load level is 1Kg.

[0185] (3) If the load level is 1Kg, the dryer runs until the second preset stop time (t2); otherwise, determine whether the load is 2Kg.

[0186] (4) If the load level is 2Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t2 + (t3 - t2) (T0-T2) / (T3-T2); If not, determine if the load is 3Kg.

[0187] (5) If the load level is 3Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t3 + (t4 - t3) (T0-T3) / (T4-T3); If not, determine if the load is 4Kg.

[0188] (6) If the load level is 4Kg, the dryer runs until the fifth preset stop time (t5); otherwise, determine whether the load is 5Kg.

[0189] (7) If the load level is 5Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t5 + (t6 - t5) (T0-T5) / (T6-T5); If not, determine if the load is 6Kg.

[0190] (8) If the load level is 6Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t6 + (t7 - t6) (T0-T6) / (T7-T6); If not, determine if the load is 7Kg.

[0191] (9) If the load rating is 7Kg, the dryer will run until the stop time is calculated according to the preset calculation formula. The preset calculation formula is: t0 = t7 + (t8 - t7) (T0-T7) / (T8-T7); If not, determine if the load is 8Kg.

[0192] (10) If the load level is 8Kg, the dryer runs until the ninth preset stop time (t9); otherwise, determine whether the load is 8Kg.

[0193] (11) If the load is not 8 kg, the dryer will run until the stop time calculated according to the preset calculation formula. The preset calculation formula is: t0 = t9 + (t 10 -t9) (T0-T9) / (T) 10 -T9).

[0194] As can be seen, the above mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, the embodiments of this application provide corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the modules and algorithm steps of the various examples described in the embodiments disclosed herein, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0195] This application embodiment can divide the controller into functional modules according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. Optionally, the module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0196] This application also provides a computer-readable storage medium including computer-executable instructions that, when run on a computer, cause the computer to execute any of the control methods for a clothes dryer provided in the above embodiments.

[0197] This application also provides a computer program product containing computer execution instructions, which, when run on a computer, causes the computer to execute any of the control methods for a clothes dryer provided in the above embodiments.

[0198] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software programs, implementation can be, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer-executable instructions. When these computer-executable instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer-executable instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer-executable instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device containing one or more servers, data centers, etc., that can be integrated with the medium. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs).

[0199] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple instances. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0200] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

[0201] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A clothes dryer, characterized in that, include: The box-shaped enclosure forms a circulation channel; A clothes drying drum, located inside the box, is used to hold clothes to be dried. One end of the circulation channel is connected to the inlet of the clothes drying drum, and the other end is connected to the outlet of the clothes drying drum. A fan, located inside the housing, is used to generate circulating gas between the circulation channel and the clothes drying drum; A heater, located within the circulation channel, is used to heat the circulating gas; A detector is used to detect the ambient temperature and the temperature of the circulating gas; The controller, electrically connected to each of the fan, the heater, and the detector, is configured to: Control the start of the fan; Obtain the ambient temperature and the temperature of the circulating gas; Control the heater to start; A first running time is determined, which is the running time of the dryer when the temperature of the circulating gas reaches a first preset temperature, wherein the first preset temperature is greater than the ambient temperature; A second running time is determined, which is the running time of the dryer when the temperature of the circulating gas reaches a second preset temperature, wherein the second preset temperature is greater than the first preset temperature; The stop time of the dryer is determined based on the difference between the second running time and the first running time, and is specifically configured as follows: The load on the clothes dryer is determined based on the difference. The stop time is determined based on the load. Wherein, the first running time is less than the second running time; The controller stores multiple load levels and multiple difference levels, wherein the load levels increase sequentially, the difference levels increase sequentially, and one load level corresponds to one difference level. The controller is specifically configured to determine the load of the dryer based on the difference. If the difference is less than or equal to the larger of two adjacent difference levels and greater than the smaller one, the load is determined to be the load level corresponding to the larger one; If the difference is less than or equal to the smallest of the multiple difference levels, the load is determined to be the smallest of the multiple load levels; When the dryer reaches its stop time, the dryer is controlled to stop running.

2. The clothes dryer according to claim 1, characterized in that, The controller executes the control to start the heater and is configured to: If the temperature of the circulating gas is less than or equal to the first preset temperature, the heater is activated.

3. The clothes dryer according to claim 1, characterized in that, The controller executes the control to start the heater and is configured to: After the fan has been running for a first preset time, the heater is controlled to start.

4. The clothes dryer according to claim 1, characterized in that, The controller executes the control to start the heater and is configured to: After the fan has been running for a first preset time, if the temperature of the circulating gas is less than or equal to the first preset temperature, the heater is controlled to start, wherein the first preset temperature is less than the second preset temperature.

5. The clothes dryer according to claim 1, characterized in that, The controller executes the control to start the heater and is configured to: Obtain the rate of temperature change of the circulating gas; If the temperature change rate is greater than or equal to a first preset value and less than or equal to a second preset value, the heater is controlled to start, wherein the first preset value is less than the second preset value.

6. The clothes dryer according to claim 1, characterized in that, The controller stores multiple preset stop times, which increase sequentially, with each preset stop time corresponding to a load level. The controller executes the process of determining the stop time based on the load, specifically configured as follows: The load level of the load is determined, and the stop time is a preset stop time corresponding to the load level of the load.

7. The clothes dryer according to claim 6, characterized in that, The controller stores multiple preset stop times, which increase sequentially, with each preset stop time corresponding to a load level. The larger of two adjacent load levels is M. i+1 The smaller one is M i The larger of two adjacent difference levels is T. i+1 The smaller one is T i The larger of two adjacent preset stop times is t. i+1 The smaller one is t i The difference between the second running time and the first running time is T0. The controller executes the process of determining the stop time based on the load, specifically configured as follows: If the load is 0 kg, the stop time is the second running time; If the load is greater than the smaller of two adjacent load levels and less than or equal to the larger of two adjacent load levels, wherein the smaller of the two adjacent load levels is 0 kg, the stopping time is a preset stopping time corresponding to the larger of the two adjacent load levels. If the load is greater than the larger of two adjacent load levels, the stopping time is t0, where t0 = t i +(t i+1 -t i ) (T0-T) i ) / ( T i+1 -T i ), where i is a positive integer.

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