Clothes dryer control method and device and clothes dryer

Abstract

The invention relates to the technical field of clothes dryers, in particular to a clothes dryer control method and device and a clothes dryer, and aims to solve the problem that an existing clothes dryer cannot guarantee energy consumption and cost saving while improving efficiency. In order to achieve the purpose, the clothes dryer control method comprises the steps that in the temperature rising stage, the temperature of a heat pump system is obtained; dynamically adjusting the first rotating speed of the variable frequency motor according to the temperature change; wherein the first rotating speed is increased along with the rising of the temperature, and the first rotating speed is smaller than or equal to the maximum rotating speed of the variable frequency motor; and when the temperature reaches the target drying temperature, controlling to enter a drying stage and controlling the variable frequency motor to work at least based on the target rotating speed corresponding to the target drying temperature. According to the method, the rotating speed of the variable frequency motor is dynamically adjusted according to the temperature change in the temperature rising stage, and compared with the prior art that work is conducted at a fixed and high rotating speed, the overall energy consumption of the drying procedure can be effectively saved, and the drying efficiency is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes dryers, and in particular provides a clothes dryer control method, a clothes dryer and a clothes dryer. Background Art

[0002] Heat pump dryers are household appliances that can quickly dry clothes. In humid weather, people can wear dry and comfortable clothes, which is more convenient and reduces the space required for drying clothes, which is conducive to improving people's quality of life. However, with the application of dryers, people have put forward higher requirements for drying quality, speed, uniformity, and energy consumption. The drying temperature of existing dryers based on heat pump systems is low, and the speed of the drying barrel is fixed, resulting in a long drying time for heat pump dryers and a poor user experience.

[0003] In the related art, in order to solve the problem of long drying time of heat pump dryers, the main solution at present is to turn on high-power auxiliary heat when the heat pump dryer starts to dry, thereby increasing the heating speed of the drying system and the temperature of the system. When the system temperature reaches a certain value, the auxiliary heat is turned off. The heating speed of the heat pump dryer can be increased by auxiliary heat, but there are the following disadvantages: running auxiliary heat will increase the operating power of the heat pump dryer, increase the power consumption of the heat pump dryer, and not save energy; the auxiliary heat only operates in the heating stage of the heat pump dryer, and when a certain temperature is reached, the auxiliary heat is turned off, and the auxiliary heat does not participate in the drying stage of the heat pump dryer, and cannot effectively increase the drying speed of the heat pump dryer; and, increasing the heating speed by auxiliary heat will increase the cost of the heat pump dryer, making it impossible to achieve the purpose of saving energy and cost while improving the drying efficiency. Summary of the invention

[0004] The present invention aims to solve the above technical problem, that is, to solve the problem that the existing clothes dryer cannot improve the efficiency while ensuring energy saving and cost saving.

[0005] In a first aspect, the present invention provides a control method for a clothes dryer, the clothes dryer comprising a heat pump system and a variable frequency motor, the method comprising:

[0006] In the heating stage, obtaining the temperature of the heat pump system at different times;

[0007] Dynamically adjusting the first speed of the variable frequency motor according to the change of the temperature; wherein the first speed increases as the temperature increases, and the first speed is less than or equal to the maximum speed of the variable frequency motor;

[0008] When the temperature reaches the target drying temperature, the control enters the drying stage and controls the variable frequency motor to operate at least based on the target rotation speed corresponding to the target drying temperature.

[0009] In some embodiments, dynamically adjusting the first speed of the variable frequency motor according to the change in the temperature includes:

[0010] Determine the temperature interval to which the temperature belongs;

[0011] The first speed corresponding to the current temperature is determined according to a preset temperature range and first speed relationship table; wherein different temperature ranges correspond to different first speeds.

[0012] In some embodiments, controlling the variable frequency motor to operate based at least on the target speed corresponding to the target drying temperature includes:

[0013] The variable frequency motor is controlled to switch between the target speed and a first preset speed; wherein the first preset speed is less than the target speed.

[0014] In some embodiments, after the control enters the drying stage and controls the variable frequency motor to operate based at least on the target speed corresponding to the target drying temperature, the method further includes:

[0015] Determining whether the humidity of the clothes in the dryer is less than or equal to a preset humidity threshold;

[0016] If yes, the second speed of the variable frequency motor is dynamically adjusted according to the change of the humidity; wherein the second speed decreases as the humidity decreases.

[0017] In some embodiments, dynamically adjusting the second speed of the variable frequency motor according to the change in humidity includes:

[0018] Determining the humidity interval to which the humidity belongs;

[0019] The second rotational speed corresponding to the current humidity is determined according to a preset humidity interval and second rotational speed relationship table; wherein different humidity intervals correspond to different second rotational speeds.

[0020] In some embodiments, the method further comprises:

[0021] After the clothes dryer starts a drying program, the variable frequency motor is controlled to operate at a second preset speed; the second preset speed is less than the maximum speed of the variable frequency motor.

[0022] In some embodiments, the heat pump system includes a compressor and a condenser, and obtaining the temperature of the heat pump system at different times includes: obtaining the exhaust temperature of the compressor and / or the outlet temperature of the condenser at different times.

[0023] In a second aspect, the present invention provides a clothes dryer control device, comprising:

[0024] An acquisition module, which is used to obtain the temperature of the heat pump system during the heating stage;

[0025] An adjustment module, which is used to dynamically adjust a first speed of the variable frequency motor according to the change of the temperature; wherein the first speed increases as the temperature increases, and the first speed is less than or equal to the maximum speed of the variable frequency motor;

[0026] A control module is used to control the entry into the drying stage when the temperature reaches the target drying temperature and to control the operation of the variable frequency motor based at least on a target rotation speed corresponding to the target drying temperature.

[0027] In a third aspect, the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the computer program implements any of the above-mentioned methods for controlling a clothes dryer.

[0028] In a fourth aspect, the present invention provides a clothes dryer comprising:

[0029] A heat pump system, a variable frequency motor, at least one processor, and a memory communicatively connected to the at least one processor;

[0030] Wherein, a computer program is stored in the memory, and when the computer program is executed by the at least one processor, any of the above-mentioned methods for controlling a clothes dryer is implemented.

[0031] In the case of adopting the above technical solution, the present invention can obtain the temperature of the heat pump system during the heating stage; dynamically adjust the first speed of the variable frequency motor according to the change of temperature; wherein the first speed increases with the increase of temperature, and the first speed is less than or equal to the maximum speed of the variable frequency motor; when the temperature reaches the target drying temperature, control to enter the drying stage and control the operation of the variable frequency motor based on at least the target speed corresponding to the target drying temperature. Compared with the prior art that operates at a fixed and higher speed, this method can effectively save the overall energy consumption of the drying program by dynamically adjusting the speed of the variable frequency motor according to the change of temperature during the heating stage. In addition, by adjusting the speed of the variable frequency motor according to the temperature, dynamic control of the speed of the drying drum of the dryer can be achieved to ensure that the clothes in the drying drum are in a uniform preheating state, which is conducive to ensuring the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0033] Figure 1 is a schematic flow chart of main steps of a clothes dryer control method provided by an embodiment of the present invention;

[0034] Figure 2It is a flow chart of a clothes dryer control method provided by a preferred embodiment of the present invention;

[0035] Figure 3 is a structural schematic diagram of a clothes dryer control device provided by an embodiment of the present invention;

[0036] Figure 4 It is a structural schematic diagram of a clothes dryer provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0037] Some embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0038] See also Figure 1 As shown, Figure 1 1 is a flow chart of main steps of a method for controlling a clothes dryer provided by an embodiment of the present invention, wherein the clothes dryer may include a heat pump system and a variable frequency motor, and the method may include:

[0039] Step S11: in the heating stage, obtaining the temperature of the heat pump system;

[0040] Step S12: dynamically adjusting the first speed of the variable frequency motor according to the change in temperature; wherein the first speed increases as the temperature increases, and the first speed is less than or equal to the maximum speed of the variable frequency motor;

[0041] Step S13: When the temperature reaches the target drying temperature, the control enters the drying stage and controls the variable frequency motor to operate based at least on the target speed corresponding to the target drying temperature.

[0042] In some embodiments, the heat pump system may include a compressor and a condenser; step S11 may specifically be to obtain the exhaust temperature of the compressor and / or the outlet temperature of the condenser as the temperature of the heat pump system.

[0043] In some embodiments, step S11 may specifically be to obtain the temperature of the heat pump system in the heating stage in real time or intermittently.

[0044] In some embodiments, step S12 may specifically be controlling the first speed of the variable frequency motor to increase as the temperature increases.

[0045] As an example, multiple temperatures T1, T2, T3, ... T i And T1 <T2<T3<…<T i , the corresponding first speed can be a1, a2, a3...a i And a1 <a2<a3<…<a i , where a i≤b, where b represents the maximum speed of the variable frequency motor.

[0046] In some other embodiments, step S12 may specifically be:

[0047] Determine the temperature interval to which the temperature belongs;

[0048] The first speed corresponding to the current temperature is determined according to a preset temperature range and first speed relationship table; wherein different temperature ranges correspond to different first speeds.

[0049] In some embodiments, step S13 may specifically be that when the temperature reaches the target drying temperature, control enters the drying stage and controls the variable frequency motor to work based on the target speed corresponding to the target drying temperature. In some embodiments, in order to ensure the drying efficiency, the target speed may be the maximum speed of the variable frequency motor.

[0050] In some other embodiments, step S13 may specifically be:

[0051] When the temperature reaches the target drying temperature, the control enters the drying stage; and,

[0052] The variable frequency motor is controlled to switch between a target speed and a first preset speed; wherein the first preset speed is less than the target speed.

[0053] By switching between the target speed and the first preset speed lower than the target speed during the drying stage, the clothes can be shaken out by running at a low speed while ensuring quick drying, which is conducive to uniform drying and can reduce the overall energy consumption of the drying program.

[0054] The target speed corresponds to the highest temperature in the heating stage, and therefore, the target speed is greater than or equal to the maximum speed in the heating stage. In some embodiments, in order to ensure drying efficiency, the target speed may be the maximum speed of the variable frequency motor.

[0055] The above is a control method for a clothes dryer provided by an embodiment of the present invention, which obtains the temperature of the heat pump system during the heating stage; dynamically adjusts the first speed of the variable frequency motor according to the change in temperature; wherein the first speed increases as the temperature increases, and the first speed is less than or equal to the maximum speed of the variable frequency motor; when the temperature reaches the target drying temperature, controls the entry into the drying stage and controls the operation of the variable frequency motor based at least on the target speed corresponding to the target drying temperature. Compared with the prior art that operates at a fixed, higher speed, this method can effectively save the overall energy consumption of the drying program by dynamically adjusting the speed of the variable frequency motor according to the change in temperature during the heating stage. In addition, by adjusting the speed of the variable frequency motor according to the temperature, dynamic control of the speed of the drying drum of the clothes dryer can be achieved to ensure that the clothes in the drying drum are in a uniform preheating state, which is conducive to ensuring the drying efficiency.

[0056] In order to further reduce energy consumption during the drying process while ensuring drying efficiency, another embodiment of the present invention provides a clothes dryer control method, which may be described in detail below.

[0057] See also Figure 2 As shown, Figure 2 1 is a flow chart of a clothes dryer control method provided by a preferred embodiment of the present invention, which may include:

[0058] Step S21: after the clothes dryer starts the drying program, the variable frequency motor is controlled to operate at a second preset speed; the second preset speed is less than the maximum speed of the variable frequency motor;

[0059] Step S22: in the heating stage, obtaining the temperature of the heat pump system;

[0060] Step S23: dynamically adjusting the first speed of the variable frequency motor according to the change in temperature; wherein the first speed increases as the temperature increases, and the first speed is less than or equal to the maximum speed of the variable frequency motor;

[0061] Step S24: when the temperature reaches the target drying temperature, the control enters the drying stage and controls the variable frequency motor to operate based at least on the target speed corresponding to the target drying temperature;

[0062] Step S25: determining whether the humidity of the clothes in the dryer is less than or equal to a preset humidity threshold;

[0063] If yes, execute step S26;

[0064] Step S26: dynamically adjusting the second speed of the variable frequency motor according to the change in humidity; wherein the second speed decreases as the humidity decreases.

[0065] In some embodiments, step S21 may specifically be to control the variable frequency motor to operate at a lower speed, i.e., a second preset speed, after the clothes dryer starts the drying program, wherein the second preset speed is less than the maximum speed of the variable frequency motor to save energy. In some embodiments, the second preset speed may be the minimum speed of the variable frequency motor.

[0066] In some embodiments, the heat pump system may include a compressor and a condenser; step S11 may specifically be to obtain the exhaust temperature of the compressor and / or the outlet temperature of the condenser as the temperature of the heat pump system.

[0067] In some embodiments, step S22 may specifically be to obtain the temperature of the heat pump system during the heating phase in real time or intermittently.

[0068] In some embodiments, step S23 may specifically be controlling the first speed of the variable frequency motor to increase as the temperature increases.

[0069] As an example, multiple temperatures T1, T2, T3, ... T i And T1 <T2<T3<…<T i , the corresponding first speed can be a1, a2, a3...a i And a1 <a2<a3<…<a i , where a i ≤b, where b represents the maximum speed of the variable frequency motor.

[0070] In some other embodiments, step S23 may specifically be:

[0071] Determine the temperature interval to which the temperature belongs;

[0072] The first speed corresponding to the current temperature is determined according to a preset temperature range and first speed relationship table; wherein different temperature ranges correspond to different first speeds.

[0073] In some embodiments, step S24 may specifically be that when the temperature reaches the target drying temperature, control enters the drying stage and controls the variable frequency motor to work based on the target speed corresponding to the target drying temperature. In some embodiments, in order to ensure the drying efficiency, the target speed may be the maximum speed of the variable frequency motor.

[0074] In some other embodiments, step S24 may specifically be:

[0075] When the temperature reaches the target drying temperature, the control enters the drying stage; and,

[0076] The variable frequency motor is controlled to switch between a target speed and a first preset speed; wherein the first preset speed is less than the target speed.

[0077] By switching between the target speed and the first preset speed lower than the target speed during the drying stage, the clothes can be shaken out by running at a low speed while ensuring quick drying, which is conducive to uniform drying and can reduce the overall energy consumption of the drying program.

[0078] The target speed corresponds to the highest temperature in the heating stage, and therefore, the target speed is greater than or equal to the maximum speed in the heating stage. In some embodiments, in order to ensure drying efficiency, the target speed may be the maximum speed of the variable frequency motor.

[0079] In some embodiments, the preset humidity threshold can be set according to the actual application situation. For example, the humidity corresponding to when the drying degree of the clothes reaches 90% can be used as the humidity threshold. When the humidity reaches the preset humidity threshold, the drying task is basically completed. Executing step S26 can further save energy while ensuring the drying efficiency.

[0080] In some embodiments, step S26 may specifically be controlling the second speed of the variable frequency motor to decrease as the humidity decreases.

[0081] As an example, the obtained humidity is h1, h2, h3...h i And h1>h2>h3>…>h i , the corresponding first speed can be c1, c2, c3...c i And c1>c2>c3>…>c i , where c1≤b, where b represents the maximum speed of the variable frequency motor.

[0082] In some other embodiments, step S26 may specifically be:

[0083] Determine the humidity interval to which the humidity belongs;

[0084] The second rotational speed corresponding to the current humidity is determined according to a preset humidity interval and second rotational speed relationship table; wherein different humidity intervals correspond to different second rotational speeds.

[0085] The above is a control method for a clothes dryer provided by a preferred embodiment of the present invention. This method can control the variable frequency motor to operate at a second preset speed after the clothes dryer starts the drying program; the second preset speed is less than the maximum speed of the variable frequency motor; in the heating stage, the temperature of the heat pump system is obtained; the first speed of the variable frequency motor is dynamically adjusted according to the change in temperature; wherein the first speed increases with the increase in temperature, and the first speed is less than or equal to the maximum speed of the variable frequency motor; when the temperature reaches the target drying temperature, the control enters the drying stage and controls the operation of the variable frequency motor based at least on the target speed corresponding to the target drying temperature; determines whether the humidity of the clothes in the dryer is less than or equal to the preset humidity threshold; if so, dynamically adjusts the second speed of the variable frequency motor according to the change in humidity; wherein the second speed decreases as the humidity decreases. This method can achieve the same effect as above. Figure 1 The same beneficial effects as the corresponding embodiments are achieved, and by controlling the variable frequency motor to run at a lower speed after the drying program is started, and controlling the second speed of the variable frequency motor to decrease as the humidity decreases after the humidity of the clothes is less than or equal to the threshold humidity threshold, the energy consumption of the entire drying program can be further reduced.

[0086] In another aspect of the present invention, a clothes dryer control device is provided. Figure 3 As shown, Figure 3 : is a schematic diagram of a structure of a clothes dryer control device provided by an embodiment of the present invention, which includes:

[0087] An acquisition module 31 is used to acquire the temperature of the heat pump system during the heating stage;

[0088] An adjustment module 32, which is used to dynamically adjust a first speed of the variable frequency motor according to a change in temperature; wherein the first speed increases as the temperature increases, and the first speed is less than or equal to a maximum speed of the variable frequency motor;

[0089] The control module 33 is used for controlling the entry into the drying stage when the temperature reaches the target drying temperature and controlling the operation of the variable frequency motor based at least on the target speed corresponding to the target drying temperature.

[0090] In some embodiments, the acquisition module 31 may be specifically used to acquire the exhaust temperature of the compressor and / or the outlet temperature of the condenser as the temperature of the heat pump system. In some embodiments, the temperature of the heat pump system in the heating stage may be specifically acquired in real time or intermittently.

[0091] In some embodiments, the adjustment module 32 can be specifically used to control the first speed of the variable frequency motor to increase as the temperature increases; or, determine the temperature range to which the temperature belongs; determine the first speed corresponding to the current temperature according to a preset temperature range and first speed relationship table; wherein the first speeds corresponding to different temperature ranges are different.

[0092] In some embodiments, the control module 33 can be specifically used to control the drying stage when the temperature reaches the target drying temperature and control the variable frequency motor to work based on the target speed corresponding to the target drying temperature. In some embodiments, in order to ensure the drying efficiency, the target speed can be the maximum speed of the variable frequency motor.

[0093] In other embodiments, the control module 33 can be specifically used to control the entry into the drying stage when the temperature reaches the target drying temperature; and to control the variable frequency motor to switch between the target speed and the first preset speed; wherein the first preset speed is less than the target speed.

[0094] In some embodiments, the device may further include a starting module 34, which is used to control the variable frequency motor to operate at a second preset speed after the clothes dryer starts a drying program; the second preset speed is less than the maximum speed of the variable frequency motor.

[0095] In some embodiments, the device may further include a determination module 35 for determining whether the humidity of the clothes in the dryer is less than or equal to a preset humidity threshold.

[0096] In some embodiments, the control module 33 can also be used to dynamically adjust the second speed of the variable frequency motor according to the change of humidity when the judgment result is yes; wherein the second speed decreases as the humidity decreases.

[0097] The above is a clothes dryer control device provided by an embodiment of the present invention, which can achieve the same beneficial effects as the above method embodiment.

[0098] It is understood by those skilled in the art that all or part of the processes in the method for implementing the above-mentioned embodiments of the present invention can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of each of the above-mentioned method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium, etc. that can carry the computer program code.

[0099] In another aspect of the present invention, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is executed by a processor, the clothes dryer control method described in any of the above embodiments is implemented. The computer-readable storage medium may be a storage device formed by various electronic devices. Optionally, the computer-readable storage medium in the embodiment of the present invention is a non-transitory computer-readable storage medium.

[0100] Another aspect of the present invention provides a dryer, which may include a heat pump system, a variable frequency motor, at least one processor, and a memory communicatively connected to the at least one processor; wherein a computer program is stored in the memory, and when the computer program is executed by at least one processor, the dryer control method described in any of the above embodiments is implemented.

[0101] When the clothes dryer runs the clothes dryer control method of any of the above method embodiments, the same beneficial effects as those of the corresponding embodiments can be achieved.

[0102] See also Figure 4 As shown, Figure 4 The figure shows by way of example that the memory 41 and the processor 42 are connected via a bus, and both the memory 41 and the processor 42 are provided with only one structure, the variable frequency motor 44 is communicatively connected with the processor 42, and the processor 42 can also obtain the temperature of the heat pump system 43 via a temperature sensor.

[0103] In other embodiments, the clothes dryer may include multiple memories 41 and multiple processors 42. The program for executing the clothes dryer control method of any of the above embodiments may be divided into multiple subprograms, each of which may be loaded and run by the processor 42 to execute different steps of the clothes dryer control method of the above method embodiment. Specifically, each subprogram may be stored in different memories 41, and each processor 42 may be configured to execute the programs in one or more memories 41 to jointly implement the clothes dryer control method of the above method embodiment.

[0104] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A clothes dryer control method, characterized in that: The clothes dryer includes a heat pump system and a variable frequency motor, and the method includes: In the heating stage, obtaining the temperature of the heat pump system at different times; Dynamically adjusting the first speed of the variable frequency motor according to the change of the temperature; wherein the first speed increases as the temperature increases, and the first speed is less than or equal to the maximum speed of the variable frequency motor; When the temperature reaches the target drying temperature, the control enters the drying stage and controls the variable frequency motor to operate at least based on the target rotation speed corresponding to the target drying temperature.

2. The method according to claim 1, characterized in that The dynamically adjusting the first speed of the variable frequency motor according to the change of the temperature comprises: Determine the temperature interval to which the temperature belongs; The first speed corresponding to the current temperature is determined according to a preset temperature range and first speed relationship table; wherein different temperature ranges correspond to different first speeds.

3. The method according to claim 1, characterized in that Controlling the variable frequency motor to operate based at least on the target speed corresponding to the target drying temperature includes: The variable frequency motor is controlled to switch between the target speed and a first preset speed; wherein the first preset speed is less than the target speed.

4. The method according to any one of claims 1 to 3, characterized in that After the control enters the drying stage and the variable frequency motor is controlled to operate based at least on the target speed corresponding to the target drying temperature, the method further includes: Determining whether the humidity of the clothes in the dryer is less than or equal to a preset humidity threshold; If yes, the second speed of the variable frequency motor is dynamically adjusted according to the change of the humidity; wherein the second speed decreases as the humidity decreases.

5. The method according to claim 4, characterized in that The dynamically adjusting the second speed of the variable frequency motor according to the change of the humidity comprises: Determining the humidity interval to which the humidity belongs; The second rotational speed corresponding to the current humidity is determined according to a preset humidity interval and second rotational speed relationship table; wherein different humidity intervals correspond to different second rotational speeds.

6. The method according to claim 1, characterized in that: The method further comprises: After the clothes dryer starts a drying program, the variable frequency motor is controlled to operate at a second preset speed; the second preset speed is less than the maximum speed of the variable frequency motor.

7. The method according to claim 1, characterized in that The heat pump system comprises a compressor and a condenser, and obtaining the temperature of the heat pump system at different times comprises: obtaining the exhaust temperature of the compressor and / or the outlet temperature of the condenser at different times.

8. A clothes dryer control device, characterized in that: include: An acquisition module, which is used to obtain the temperature of the heat pump system during the heating stage; An adjustment module, which is used to dynamically adjust a first speed of the variable frequency motor according to the change of the temperature; wherein the first speed increases as the temperature increases, and the first speed is less than or equal to the maximum speed of the variable frequency motor; A control module is used to control the entry into the drying stage when the temperature reaches the target drying temperature and to control the operation of the variable frequency motor based at least on a target rotation speed corresponding to the target drying temperature.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the dryer control method according to any one of claims 1 to 7 is implemented.

10. A clothes dryer, characterized in that: include: A heat pump system, a variable frequency motor, at least one processor, and a memory communicatively connected to the at least one processor; The memory stores a computer program, and when the computer program is executed by the at least one processor, the dryer control method according to any one of claims 1 to 7 is implemented.

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