Drying module, clothes drying equipment, control method of clothes drying equipment and storage medium
By adding a heat exchanger to the clothes drying equipment and controlling its function switching, the problems of slow heating and long drying time in the clothes drying equipment are solved, achieving rapid heating and efficient drying, and reducing equipment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-03-31
AI Technical Summary
Clothes drying equipment heats up slowly and takes a long time to dry during initial operation. Current technology increases the cost of equipment by adding more condensers and heat exchangers.
By adding a heat exchanger in the air duct and controlling the opening of the first throttling device, its function can be switched under different operating conditions. During the initial operation of the drying equipment, it is used as a condenser to quickly raise the temperature, and the temperature inside the drum quickly reaches the set temperature. After the temperature inside the drum is reached, it is used as an evaporator to remove moisture from the airflow, thereby improving drying efficiency.
Without increasing equipment costs, this method rapidly raises the temperature inside the drum, reduces drying time, and improves the drying efficiency of clothes drying equipment.
Smart Images
Figure CN121760181A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electrical equipment technology, specifically relating to a drying module, a clothes drying device and its control method, and a storage medium. Background Technology
[0002] In related technologies, clothes dryers or washer-dryer combos have technical problems such as slow heating and long drying time, which have room for improvement. Summary of the Invention
[0003] This application provides a drying module, a clothes drying device, a control method thereof, and a storage medium, aiming to at least partially solve the technical problems of slow heating and long drying time in clothes drying devices, so as to improve the drying efficiency of clothes drying devices.
[0004] In a first aspect of this application, a drying module is provided, comprising: a compressor having an output section and an input section; a first heat exchanger, a second heat exchanger, and a third heat exchanger connected in sequence, wherein the first heat exchanger is connected to the output section of the compressor, and the third heat exchanger is connected to the input section of the compressor; and a first throttling device connected between the first heat exchanger and the second heat exchanger, wherein the opening degree of the first throttling device is adjustable.
[0005] The drying module provided in this application can change the function of the intermediate second heat exchanger by controlling the state of the first throttling device. Under one operating condition, when the first throttling device is fully open, the high-temperature and high-pressure refrigerant output by the compressor is heated by the first and second heat exchangers to generate a low-temperature and low-pressure refrigerant. The low-temperature and low-pressure refrigerant is then heated by the third heat exchanger to generate a gaseous refrigerant, which is then recycled back to the compressor. Correspondingly, the airflow can have moisture removed by the third heat exchanger, and after being heated by the second and first heat exchangers, it can quickly rise in temperature, thus solving the problem of the drying equipment starting up quickly. The technical issue of slow temperature rise during this period; under another operating condition, the opening of the first throttling device is reduced, and the high-temperature and high-pressure refrigerant output by the compressor is converted into low-temperature and low-pressure refrigerant after heat exchange in the first heat exchanger. The low-temperature and low-pressure refrigerant is then converted into gaseous refrigerant after heat exchange in the second and third heat exchangers. The gaseous refrigerant is then recycled back to the compressor. Correspondingly, the airflow can pass through the third heat exchanger and the second heat exchanger to extract more moisture from the airflow. After being heated by the first heat exchanger, it generates a dry airflow with less moisture, which can effectively improve the drying efficiency of the clothes drying equipment, reduce the drying time, and has good practicality.
[0006] In some implementations, the first throttling device is an electronic expansion valve.
[0007] In some embodiments, the drying module further includes a second throttling device connected between the second heat exchanger and the third heat exchanger.
[0008] In some implementations, the opening degree of the second throttling device is adjustable.
[0009] In some implementations, the second throttling device is an electronic expansion valve or a capillary tube.
[0010] In some implementations, the first throttling device is fully opened, and the output of the compressor delivers high-temperature and high-pressure refrigerant. After heat exchange in the first and second heat exchangers, low-temperature and low-pressure refrigerant is generated. After heat exchange in the third heat exchanger, the low-temperature and low-pressure refrigerant is generated as gaseous refrigerant, which is then input into the compressor via the input of the compressor.
[0011] In some implementations, the opening of the first throttling device is reduced, and the output of the compressor delivers high-temperature and high-pressure refrigerant. After heat exchange in the first heat exchanger, it generates low-temperature and low-pressure refrigerant. After heat exchange in the second and third heat exchangers, the low-temperature and low-pressure refrigerant generates gaseous refrigerant, which is then input into the compressor via the input of the compressor.
[0012] In a second aspect, this application provides a clothes drying device, the clothes drying device comprising: a drum having an air outlet and an air inlet; an air duct having the air outlet and the air inlet connected at both ends respectively; and a drying module, wherein a third heat exchanger, a second heat exchanger, and a first heat exchanger of the drying module are sequentially arranged in the air duct along the airflow direction of the air duct.
[0013] In some implementations, the compressor is located outside the air duct.
[0014] In a third aspect, this application also provides a control method for a clothes drying device, comprising:
[0015] The processor determines whether the real-time temperature inside the drum of the clothes dryer exceeds the set temperature.
[0016] When the real-time temperature is lower than the set temperature, the processor controls the drying module to execute a first instruction, the first instruction including controlling the first throttling device to be fully open;
[0017] When the real-time temperature is not lower than the set temperature, the processor controls the drying module to execute a second instruction, which includes controlling the opening of the first throttling device to decrease.
[0018] In a third aspect, this application also provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described control method.
[0019] The drying equipment, control method, and storage medium provided in this application can solve the technical problem of slow temperature rise during the initial operation of the drying equipment to a certain extent, and can effectively improve the drying efficiency of the drying equipment and reduce the drying time, thus having great practicality. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 and Figure 2 A schematic diagram of the structure of a garment processing device according to an embodiment of this application is shown;
[0022] Figure 3 A schematic diagram of the structure of a drying module according to one or more embodiments of this application is shown;
[0023] Figure 4 A schematic diagram of the logic control of the clothes drying device of this application is shown;
[0024] Figure 5 A flowchart illustrating a control method for a clothes drying device according to one or more embodiments of this application is shown.
[0025] Explanation of reference numerals in the attached figures:
[0026] Shell-1, Inlet-11, Air Inlet-12, Air Outlet-13, Air Inlet Duct-14;
[0027] Door body -2;
[0028] Roller-3,
[0029] Drying module-4, compressor-41, first heat exchanger-42, second heat exchanger-43, third heat exchanger-44, first throttling device-45, second throttling device-46;
[0030] Air duct-5;
[0031] Temperature sensor -6;
[0032] Processor-7. Detailed Implementation
[0033] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0034] In recent years, as people's pursuit of a better quality of life has increased, clothes dryers and washer-dryer combos have gradually gained popularity among consumers in various regions due to their unique functionality. Currently, drying modes are mainly divided into condenser, exhaust, and heat pump types. Compared with the other two methods, heat pump drying reduces damage to clothes, improves their fluffiness, and recovers the latent and sensible heat of the airflow, resulting in lower energy consumption and making it widely popular.
[0035] In related technologies, heat pump drying equipment includes an evaporator, a condenser, and an exhaust fan arranged along the airflow direction. Under the action of the exhaust fan, the humid air inside the drum flows towards the evaporator, where it is cooled and dehydrated. The humid air is then heated by the condenser to form a dry airflow, which flows into the drum to dry the clothes inside. However, in the initial operation phase of heat pump drying equipment, the heating process is slow, typically requiring ten to twenty minutes for the drum to reach the set temperature. This results in low drying efficiency during the drying process.
[0036] The reason for this is that in the initial stage of operation, the condenser's heat exchange area is insufficient, resulting in slow heating inside the drum. Once the drum temperature reaches the set temperature, the evaporator's insufficient heat exchange area prevents all moisture in the airflow from condensing, causing it to circulate repeatedly in the air duct and resulting in excessive moisture in the airflow, thus prolonging the drying time. Solving this problem by increasing the number of condensers and heat exchangers would increase equipment costs.
[0037] Based on the aforementioned technical problems, this application provides a drying module, a clothes drying device, a control method thereof, and a storage medium, aiming to solve, to some extent, the technical problems of slow heating and long drying time in clothes drying devices without significantly increasing equipment costs, thereby improving the drying efficiency of clothes drying devices.
[0038] The design concept of this application is as follows: by adding a heat exchanger in the air duct, during the initial operation of the drying equipment, the heat exchanger is controlled to be used as a condenser to rapidly raise the temperature through at least two condensers, so that the temperature inside the drum can quickly reach the set temperature; after the temperature inside the drum quickly reaches the set temperature, the heat exchanger is controlled to be used as an evaporator to remove moisture from the airflow, so as to output a dry airflow with reduced moisture to the drum, thereby improving drying efficiency and reducing drying time.
[0039] Specific technical solutions will now be described in detail with reference to the accompanying drawings, which are not necessarily drawn to scale. Similar or identical reference numerals may be used to designate the same or similar parts in different figures. The use of similar or identical reference numerals in different figures does not mean that all figures including similar or identical reference numerals constitute a single or the same embodiment. The accompanying drawings illustrate the various embodiments discussed in this application in a generalized, illustrative, and not restrictive manner.
[0040] Figure 1 and Figure 2 A schematic diagram of the garment processing device according to an embodiment of this application is shown. (In conjunction with...) Figure 1 and Figure 2 This is a clothing handling device for a dryer or washer-dryer combo, comprising a housing 1, a door 2, a drum 3, and a drying module 4. The housing 1 has a loading port 11 on its front side, allowing the user to load or unload clothing from the drum 3. The door 2 is rotatably connected to the front of the housing 1 to open and close the loading port 11. The drum 3 is rotatably mounted inside the housing 1 to hold clothing.
[0041] Such as 1 and Figure 2 As shown in one embodiment of this application, an air inlet 12 of an air outlet channel 13 is disposed below the loading port 11, an air outlet channel 13 is disposed below the roller 3, and an air inlet pipe 14 is disposed on the back of the roller 3. The roller 3, the air outlet channel 13, and the air inlet pipe 14 are sequentially connected to form an air duct for airflow circulation. A drying module 4 is disposed within the air outlet channel 13. The humid air discharged from the roller 3 enters the air outlet channel 13 from the air inlet 12 and is dried by the drying module 4 to form a clean, dry airflow. The air inlet channel 14 introduces the dry airflow into the roller 3 to dry the clothes inside the roller 3.
[0042] It is important to note that Figure 1 and Figure 2This example illustrates the layout of a drying module 4, air outlet 13, air inlet 12, and air inlet 14 in a garment processing device for ease of understanding, and does not limit the position or relative relationship of these devices / components. For example, in another embodiment of this application, the drying module 4 is arranged above the drum 3, or the drying module 4 is arranged both above and below the drum 3 to process the humid airflow from the drum 3 into dry airflow. Accordingly, the air outlet 13 or air inlet 14 can be arranged above, below, or behind the drum 3. Due to the vast number of examples, they are not all listed here.
[0043] In a first aspect, this application provides a drying module. Figure 3 A schematic diagram of the drying module according to one or more embodiments of this application is shown. (In conjunction with...) Figure 3 The drying module 4 of this application includes a compressor 41, a first heat exchanger 42, a second heat exchanger 43, a third heat exchanger 44, and a first throttling device 45. The compressor 41 has an output section and an input section. The first heat exchanger 42, the second heat exchanger 43, and the third heat exchanger 44 are connected in sequence. The first heat exchanger 42 is connected to the output section of the compressor 41, and the third heat exchanger 44 is connected to the input section of the compressor 41. The first throttling device 45 is connected between the first heat exchanger 42 and the second heat exchanger 43, and the opening degree of the first throttling device 45 is adjustable.
[0044] The drying module 4 provided in this application can change the function of the intermediate second heat exchanger 43 by controlling the opening degree of the first throttling device 45. In the first operating condition, when the first throttling device 45 is fully open, the high-temperature and high-pressure refrigerant output by the compressor 41 is heated by the first heat exchanger 42 and the second heat exchanger 43 to generate a low-temperature and low-pressure refrigerant. The low-temperature and low-pressure refrigerant is heated by the third heat exchanger 44 to generate a gaseous refrigerant, which is then recycled back to the compressor 41. Correspondingly, the airflow can have moisture extracted by the third heat exchanger 44, and then be heated by the second heat exchanger 43 and the first heat exchanger 42 to quickly raise the temperature, thereby solving the problem of the drying equipment being in operation when the compressor is open. The technical problem of slow temperature rise during initial operation is addressed in the second operating condition. By reducing the opening of the first throttling device 45, the high-temperature and high-pressure refrigerant output by the compressor 41 is converted into a low-temperature and low-pressure refrigerant after heat exchange in the first heat exchanger 42. The low-temperature and low-pressure refrigerant is then converted into a gaseous refrigerant after heat exchange in the second heat exchanger 43 and the third heat exchanger 44. The gaseous refrigerant is then recycled back to the compressor 41. Correspondingly, the airflow can release more moisture through the third heat exchanger 44 and the second heat exchanger 43. After being heated by the first heat exchanger 42, a drier airflow with less moisture is generated, which can effectively improve the drying efficiency of the clothes drying equipment, reduce the drying time, and has good practicality.
[0045] Specifically, in the first operating condition, the third heat exchanger 44 is used as an evaporator, and the first and second heat exchangers 43 are used as two condensers. Under the action of the induced draft fan, the humid air in the drum 2 flows towards the third heat exchanger 44, which acts as an evaporator. After being cooled and dehydrated by the third heat exchanger 44, it is heated by the first and second heat exchangers 42 and 43, which act as two condensers, to form a dry airflow. Because the dehydrated airflow is heated by two heat exchangers, it can be heated quickly, thus reducing the heating time. In the second operating condition, the third heat exchanger 44 and the second heat exchanger 43... Heat exchanger 43 is used as two evaporators, and the first heat exchanger is used as a condenser. Under the action of the induced draft fan, the humid air in the drum 2 flows to the third heat exchanger 44 and the second heat exchanger 43, which are used as evaporators. After being cooled and dehydrated by the third heat exchanger 44 and the second heat exchanger 43, it is heated by the first heat exchanger 42, which is used as a condenser, to form a dry airflow. Since the humid airflow is cooled and dehydrated by two heat exchangers, more moisture in the airflow can be extracted, thereby generating a dry airflow with less moisture. This can effectively improve the drying efficiency of the clothes drying equipment and reduce the drying time.
[0046] This application uses only one heat exchanger (second heat exchanger 43) to switch between different operating conditions, allowing the second heat exchanger 43 to be used as a condenser or an evaporator respectively. By adding only one heat exchanger, the heating time and drying time are reduced, making it highly practical.
[0047] According to one embodiment of this application, the first throttling device 45 can be an electronic expansion valve, capable of receiving commands to switch between fully open and partially open. In a first operating condition, the electronic expansion valve is fully open and does not perform a throttling function, and the second heat exchanger 43 is used as a condenser; in a second operating condition, the electronic expansion valve is partially open, and the second heat exchanger 43 is used as an evaporator. In other embodiments, the first throttling device 45 can also be other types of control valves, and this application does not limit this. Combination Figure 3 According to one embodiment of this application, the drying module 4 further includes a second throttling device 46, which is connected between the second heat exchanger 43 and the third heat exchanger 44. The second throttling device 46 functions as a throttling device during use. It does not need to be switched between fully open and partially open; it can use an electronic expansion valve or a capillary tube, etc., and this application does not impose any limitations on this. In another embodiment, the opening degree of the second throttling device 46 is adjustable, allowing the third heat exchanger 44 to be used as an evaporator in either the first or second operating condition, and this application does not impose any limitations on this either.
[0048] Based on the same design concept, in a second aspect of this application, this application also provides a clothes drying device, which includes a drum 2, an air duct 5 and the aforementioned drying module 4. The two ends of the air duct 5 are connected to an air outlet and an air inlet, respectively. The third heat exchanger 44, the second heat exchanger 43 and the first heat exchanger 42 of the aforementioned drying module 4 are sequentially arranged in the air duct 5 along the airflow direction of the air duct 5.
[0049] The drying equipment with the aforementioned drying module 4 can, to some extent, solve the technical problem of slow temperature rise during the initial operation of the drying equipment, and can effectively improve the drying efficiency of the drying equipment and reduce the drying time, thus having great practicality.
[0050] In one embodiment, the compressor 41 is placed outside the air duct 5, which reduces the resistance of the compressor 41 to the airflow and allows the airflow to circulate smoothly. In another embodiment, the compressor 41 may also be recessed into the bottom or top of the air duct 5, which can also reduce the resistance to the airflow to a certain extent and allow the airflow to circulate smoothly.
[0051] Figure 4 A schematic diagram of the logic control of the clothes drying device of this application is shown. Combined with... Figure 4 According to one embodiment of this application, the drying equipment can be the aforementioned dryer or a washer-dryer combo. A temperature sensor 6 is installed inside the drum 2 of the drying equipment to obtain the real-time temperature inside the drum 2.
[0052] Combination Figure 4 The clothes drying device shown in this application also includes a processor 7, which is connected to a first throttling device 45 and a temperature sensor 6. The temperature sensor 6 sends the real-time temperature inside the drum 2 to the processor 7. The processor 7 controls the first throttling device 45 according to the real-time temperature inside the drum 2 of the clothes drying device so that the temperature inside the drum 2 of the clothes drying device is within a suitable range. The specific control method can be referred to the description below.
[0053] Based on the same design concept, in a third aspect of this application, this application also provides a control method for a clothes drying device. Figure 5 This application illustrates a flowchart of a control method for a clothes drying device according to one or more embodiments. Figure 5 The control method includes:
[0054] The real-time temperature inside the drum 2 is obtained using the aforementioned temperature sensor;
[0055] The processor 7 determines whether the real-time temperature inside the drum 2 of the dryer exceeds the set temperature;
[0056] When the real-time temperature is lower than the set temperature, the processor 7 controls the drying module 4 to execute a first instruction, the first instruction including controlling the first throttling device 45 to be fully open;
[0057] When the real-time temperature is not lower than the set temperature, the processor 7 controls the drying module 4 to execute a second instruction, which includes controlling the opening degree of the first throttling device 45 to decrease.
[0058] The control method of the drying equipment disclosed in this application, when the real-time temperature is lower than the set temperature, the processor 7 controls the drying module 4 to execute a first instruction. In this first operating condition, the third heat exchanger 44 can be used as an evaporator, and the first heat exchanger and the second heat exchanger 43 can be used as two condensers. Under the action of the induced draft fan, the humid air in the drum 2 flows towards the third heat exchanger 44, which acts as an evaporator. After being cooled and dehydrated by the third heat exchanger 44, it is heated by the first heat exchanger 42 and the second heat exchanger 43, which act as two condensers, to form a dry airflow. Since the dehydrated airflow is heated by two heat exchangers, the temperature can be raised quickly, thereby reducing the heating time. When the real-time temperature is not lower than the set temperature... At this time, the processor 7 controls the drying module 4 to execute the second instruction, that is, in the second working condition, the third heat exchanger 44 and the second heat exchanger 43 are used as two evaporators, and the first heat exchanger is used as a condenser. Under the action of the induced draft fan, the humid air in the drum 2 flows to the third heat exchanger 44 and the second heat exchanger 43 as evaporators. After being cooled and dehydrated by the third heat exchanger 44 and the second heat exchanger 43, it is heated by the first heat exchanger 42 as a condenser to form a dry airflow. Since the humid airflow is cooled and dehydrated by two heat exchangers, more moisture in the airflow can be extracted, thereby generating a dry airflow with less moisture, which can effectively improve the drying efficiency of the drying equipment and reduce the drying time.
[0059] It should be noted that the above control method is not only applicable to the initial stage of the operation of the drying equipment, but also to other stages of the operation of the drying equipment, so as to ensure that the drying equipment is always at a suitable set temperature during the drying process and improve the drying efficiency.
[0060] Based on the same design concept, in a third aspect of this application, a storage medium is also provided, on which a computer program is stored, which, when executed by processor 7, implements the above-described control method.
[0061] The drying equipment, control method, and storage medium provided in this application can solve the technical problem of slow temperature rise during the initial operation of the drying equipment to a certain extent, and can also ensure that the drying equipment is always at a suitable set temperature during the drying process. This can effectively improve the drying efficiency of the drying equipment, reduce the drying time, and has great practicality.
[0062] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0063] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.
[0064] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0065] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0066] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A drying module, characterized in that, include: A compressor has an output section and an input section; A first heat exchanger, a second heat exchanger, and a third heat exchanger are connected in sequence. The first heat exchanger is connected to the output section of the compressor, and the third heat exchanger is connected to the input section of the compressor. A first throttling device is connected between the first heat exchanger and the second heat exchanger, and the opening degree of the first throttling device is adjustable.
2. The drying module according to claim 1, characterized in that, The first throttling device is an electronic expansion valve.
3. The drying module according to claim 1, characterized in that, Including: The second throttling device is connected between the second heat exchanger and the third heat exchanger.
4. The drying module according to claim 3, characterized in that, The opening degree of the second throttling device is adjustable.
5. The drying module according to claim 3 or 4, characterized in that, The second throttling device is an electronic expansion valve or a capillary tube.
6. The drying module according to any one of claims 1-4, characterized in that, When the first throttling device is fully opened, the output of the compressor delivers high-temperature and high-pressure refrigerant. After heat exchange in the first and second heat exchangers, low-temperature and low-pressure refrigerant is generated. After heat exchange in the third heat exchanger, the low-temperature and low-pressure refrigerant is generated into gaseous refrigerant. The gaseous refrigerant is input into the compressor through the input of the compressor.
7. The drying module according to claim 6, characterized in that, The opening of the first throttling device is reduced, and the output of the compressor delivers high-temperature and high-pressure refrigerant. After heat exchange in the first heat exchanger, low-temperature and low-pressure refrigerant is generated. After heat exchange in the second and third heat exchangers, the low-temperature and low-pressure refrigerant is generated into gaseous refrigerant, which is then input into the compressor through the input of the compressor.
8. A clothes drying device, characterized in that, The clothes drying equipment includes: The drum is equipped with an air outlet and an air inlet; The air duct is connected to the air outlet and the air inlet at both ends, respectively. The drying module according to any one of claims 1-7, wherein the third heat exchanger, the second heat exchanger and the first heat exchanger of the drying module are sequentially arranged in the air duct along the airflow direction of the air duct.
9. The clothes drying equipment according to claim 8, characterized in that, The compressor is located outside the air duct.
10. A control method for a clothes drying device, characterized in that, include: The processor determines whether the real-time temperature inside the drum of the clothes dryer exceeds the set temperature. When the real-time temperature is lower than the set temperature, the processor controls the drying module to execute a first instruction, the first instruction including controlling the first throttling device to be fully open; When the real-time temperature is not lower than the set temperature, the processor controls the drying module to execute a second instruction, which includes controlling the opening of the first throttling device to decrease.
11. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method as described in claim 10.