A drying module and a laundry treating apparatus

Abstract

The application is suitable for the technical field of household appliances, and provides a drying module and a clothes processing device. The drying module comprises a main drying air duct, a secondary drying air duct, and one or two heat exchangers arranged in the main drying air duct. The two ends of the secondary drying air duct are arranged on the main drying air duct on the two sides of the one or two heat exchangers. The secondary drying air duct can make part of air return to the upstream of the one or two heat exchangers to be dehumidified again, can reduce the water vapor content in the air, reduce the water vapor content of the air entering the drum, improve the efficiency of the air in the clothes in the drum to desorb water, achieve the purpose of quickly drying clothes with low-humidity air, and reduce energy consumption.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and provides a drying module and a clothing processing device. Background Technology

[0002] Currently, the main process of drying clothes is to deliver hot air with high temperature and low humidity into the drum to evaporate the moisture in the clothes and reduce their moisture content. The hot and humid air that is discharged after passing through the drum is first cooled and condensed, and then heated up and sent back into the drum.

[0003] Currently, the problem with the above method is that the dehumidification effect is limited, the humidity of the air entering the drum is high, which reduces the drying speed of clothes, prolongs the drying time, and increases energy consumption. Summary of the Invention

[0004] The purpose of this application is to provide a drying module, which aims to provide a solution to improve drying efficiency.

[0005] The embodiments of this application are implemented as follows: a drying module includes:

[0006] The main drying air duct, the secondary drying air duct, and one or two heat exchangers disposed within the main drying air duct; the two ends of the secondary drying air duct are respectively disposed on the main drying air duct on both sides of one or two of the heat exchangers.

[0007] In one embodiment, the drying module includes one of the heat exchangers, which is either a first heat exchanger or a moisture absorption and desiccation assembly.

[0008] In one embodiment, the drying module includes two heat exchangers, which are a first heat exchanger and a moisture absorption and desiccation component arranged along the airflow direction, respectively; the two ends of the secondary drying air duct are respectively arranged on both sides of the first heat exchanger, or on both sides of the moisture absorption and desiccation component, or on the two sides of the first heat exchanger and the moisture absorption and desiccation component that are far apart from each other.

[0009] In one embodiment, the secondary drying duct is configured to be openably and closably connected to the main drying duct.

[0010] In one embodiment, the drying module includes a switching assembly for controlling the connection and disconnection between the secondary drying duct and the main drying duct;

[0011] The switching assembly is configured to switch between a first position and at least one second position; in the first position, the switching assembly closes the secondary drying duct, and in different second positions, the switching assembly opens the secondary drying duct at different ratios.

[0012] In one embodiment, the first heat exchanger includes a first evaporator; the moisture absorption and desorption assembly includes a moisture absorption section and a desorption section, wherein the moisture absorption section is at least used to absorb water from the circulating medium in the main drying duct.

[0013] In one embodiment, the drying module further includes a fourth heat exchanger and a regeneration duct, the desorption section is disposed within the regeneration duct, and the fourth heat exchanger is disposed within the regeneration duct and located upstream of the desorption section.

[0014] In one embodiment, the regeneration air duct is a closed-loop air duct, and the drying module further includes a third heat exchanger located downstream of the desorption section and upstream of the fourth heat exchanger.

[0015] In one embodiment, the drying module further includes a second heat exchanger disposed within the main drying duct and located downstream of the secondary drying duct.

[0016] In one embodiment, the third heat exchanger includes a second evaporator; at least one of the second heat exchanger and the fourth heat exchanger includes a condenser; the drying module further includes a compressor and a throttling device; the compressor, the condenser, the throttling device, the second evaporator, and the first evaporator are connected sequentially along the refrigerant flow direction.

[0017] In one embodiment, the system further includes a regeneration fan and a main circulation fan, the regeneration fan being disposed within the regeneration duct and located upstream of the fourth heat exchanger, and the main circulation fan being disposed within the main drying duct; and / or

[0018] The drying module further includes a secondary circulation fan, which is disposed within the secondary drying air duct, and / or the drying module further includes a one-way valve, which is disposed within the secondary drying air duct.

[0019] In one embodiment, the system further includes a first driving member and a control system, wherein the first driving member is used to drive the moisture absorption and desiccation assembly to rotate; and the control system is used to control the rotational speed of the moisture absorption and desiccation assembly through the first driving member.

[0020] Another objective of this application is to provide a garment processing device, which includes:

[0021] Rollers; and

[0022] The drying module as described in the above embodiments is used to dry the circulating medium flowing out of the drum.

[0023] The drying module and clothing processing equipment provided in this application have the following advantages:

[0024] The drying module and clothing processing equipment provided in this application embodiment include a main drying air duct, a secondary drying air duct, and one or two heat exchangers disposed in the main drying air duct. The two ends of the secondary drying air duct are respectively disposed on the main drying air duct on both sides of one or two heat exchangers. The secondary drying air duct enables some air to return to the upstream of one or two heat exchangers for secondary dehumidification, thereby reducing the water vapor content in the air and the water vapor content of the air entering the drum. This improves the efficiency of air removing moisture from the clothes in the drum, achieving the purpose of quickly drying clothes with low humidity air, while reducing energy consumption. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a garment processing device provided in one embodiment of this application, wherein the switch assembly is in the open state;

[0027] Figure 2 This is a schematic diagram of the structure of a garment processing device provided in one embodiment of this application, wherein the switch assembly is in the off state;

[0028] Figure 3 This is a schematic diagram of the structure of a garment processing device provided in another embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the structure of a garment processing device provided in another embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the structure of a garment processing device provided in another embodiment of this application;

[0031] Figure 6 This is a schematic diagram of the structure of a garment processing device provided in another embodiment of this application;

[0032] Figure 7 This is a schematic diagram of the structure of a garment processing device provided in another embodiment of this application;

[0033] Figure 8 This is a schematic diagram of the control relationship of the clothing processing equipment provided in the embodiments of this application;

[0034] Figure 9 This is a schematic diagram of a heat pump system in the clothing processing equipment provided in this application embodiment;

[0035] Figure 10 This is another structural schematic diagram of the heat pump system in the clothing processing equipment provided in this application embodiment;

[0036] Figure 11 This is a schematic diagram of the moisture-absorbing turntable in the clothing processing device provided in this application embodiment.

[0037] The markings in the diagram mean:

[0038] 200 - Garment processing equipment;

[0039] 1-Drum, 10-Clothing handling space, 11-Air inlet, 12-Air outlet, 13-Third drive unit;

[0040] 100-Drying module;

[0041] 21 - Main drying air duct; 22 - Secondary drying air duct;

[0042] 32-Second heat exchanger, 33-Main circulation fan, 34-First heat exchanger, 35-Secondary circulation fan, 36-Third heat exchanger, 37-Fourth heat exchanger, 371-Electric heating element, 38-Regeneration fan;

[0043] 4-Regenerative air duct;

[0044] 6-Heat pump system, 60-Compressor, 61-First evaporator, 62-Second evaporator, 63-Condenser, 64-Throttling device, 641-First throttling device, 642-Second throttling device;

[0045] 7-Moisture absorption and desiccation assembly, 71-Moisture absorption disc, 711-Moisture absorption section, 712-Desorption section, 72-First driving component;

[0046] 81-Switch assembly, 811-Second drive unit, 812-Moving unit, 82-One-way valve;

[0047] 9-Control system. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0049] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly fixed to or set on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the purpose of 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, and therefore should not be construed as a limitation of this patent. The terms "first" and "second" are used only for the purpose of description and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly specified.

[0050] To illustrate the technical solutions described in this application, the following detailed description is provided in conjunction with specific accompanying drawings and embodiments.

[0051] Please see Figure 1 and Figure 2 As shown, this application embodiment provides a clothing processing device 200, which includes a housing (not shown), a drum 1 disposed within the housing, and a drying module 100 disposed within the housing and located outside the drum 1. The drying module 100 is used to dry the circulating medium flowing out from the drum 1.

[0052] Please see Figure 1 and Figure 2 As shown, in one embodiment, the drying module 100 includes a main drying air duct 21, a secondary drying air duct 22, and one or two heat exchangers. The two ends of the secondary drying air duct 22 are respectively disposed on the main drying air duct 21 on both sides of one or two heat exchangers.

[0053] The circulating medium mentioned above can include various gases and water vapor, and may also include mist droplets. For practical applications, it will be simplified to air, i.e., air containing water vapor, for the following explanation.

[0054] After passing through one or two heat exchangers, a portion of the air (let's call this the first portion) returns to the upstream of one or two heat exchangers via the secondary drying duct 22, further reducing the absolute humidity of the first portion. The remaining portion (let's call this the second portion) flows directly to the drum 1. The absolute humidity of the first portion is lower than that of the second portion, and the combined absolute humidity of the first and second portions is also lower than that of the second portion. Thus, both the absolute and relative humidity of the air entering the drum 1 are reduced, improving the efficiency of moisture removal from the clothes inside the drum 1.

[0055] The drying module 100 provided in this application embodiment has two ends of the secondary drying air duct 22 respectively set on the main drying air duct 21 on both sides of one or two heat exchangers. The secondary drying air duct 22 can allow some air to return to the upstream of one or two heat exchangers for secondary dehumidification, thereby reducing the water vapor content in the air and also reducing the water vapor content of the air entering the drum 1, improving the efficiency of air removing moisture from the clothes in the drum 1, achieving the purpose of quickly drying clothes with low humidity air, and reducing energy consumption.

[0056] The space defined inside the housing includes a receiving cavity (not shown) isolated from the main drying air duct 21 and the secondary drying air duct 22. The roller 1 is disposed within the receiving cavity, as shown... Figure 1 and Figure 2 As shown, the drum 1 has an air inlet 11, a clothes handling space 10 and an air outlet 12 connected in sequence. The air inlet 11 of the drum 1 is connected to the air outlet of the main drying air duct 21, and the air outlet 12 of the drum 1 is connected to the air inlet of the main drying air duct 21. The main drying air duct 21 and the drum 1 are connected to form a closed circulating air duct, and the air circulates inside.

[0057] like Figures 1 to 5 As shown, the drying module 100 includes two heat exchangers: a first heat exchanger 34 arranged sequentially along the airflow direction within the main drying duct 21, and a moisture absorption and desiccation assembly 7 partially arranged within the main drying duct 21. Figure 1 and Figure 2 As shown, the two ends of the secondary drying air duct 22 are respectively set on the main drying air duct 21 on both sides of the moisture absorption and desiccation component 7, that is, the secondary drying air duct 22 is connected in parallel with the moisture absorption and desiccation component 7; or, as shown Figures 3 to 5 As shown, the two ends of the secondary drying duct 22 are respectively located on the main drying duct 21, which is located at one end away from the first heat exchanger 34 and the moisture absorption and desiccation assembly 7. That is, the secondary drying duct 22 is connected in parallel with the first heat exchanger 34 and the moisture absorption and desiccation assembly 7; or, as shown... Figure 6 As shown, the two ends of the secondary drying air duct 22 are respectively set on the main drying air duct 21 on both sides of the first heat exchanger 34, that is, the secondary drying air duct 22 is connected in parallel with the first heat exchanger 34.

[0058] The air is dehumidified a second time within the main drying duct 21 by the configuration of the moisture absorption and dehumidification component 7 and the first heat exchanger 34; a portion of the air within the main drying duct 21 is dehumidified a third time by the configuration of the secondary drying duct 22. Therefore, the absolute humidity of the air entering the drum 1 can be further reduced.

[0059] In one embodiment, the first heat exchanger 34 includes a low-temperature dehumidifier. The low-temperature dehumidifier is used to condense water vapor in the air within the main drying duct 21.

[0060] In one embodiment, please refer to Figures 1 to 5 As shown, the first heat exchanger 34 includes a first evaporator 61, which is used to condense water vapor in the air within the main drying duct 21. After passing through the first evaporator 61, the absolute humidity of the air decreases and the relative humidity increases.

[0061] During the drying process, the main drying air duct 21 circulates with the air inside the drum 1, carrying away the moisture from the clothes inside the drum 1. The air flowing out of the drum 1 carries a large amount of water vapor. After passing through the moisture absorption and dehumidification component 7, some of the water vapor is removed, and the absolute humidity and relative humidity of the air decrease.

[0062] Absolute humidity refers to the mass of water vapor contained in a unit volume of air, and it directly reflects the actual content of water vapor in the air.

[0063] Relative humidity: refers to the percentage of the actual water vapor content (absolute humidity) in the air compared to the saturated water vapor content at the same temperature. It is a relative concept used to describe the degree to which the water vapor content in the air approaches saturation.

[0064] When the absolute humidity of the air remains constant, a decrease in temperature will cause the relative humidity to increase, potentially even reaching a state of water vapor saturation and causing condensation. Conversely, when the absolute humidity of the air remains constant, an increase in temperature will cause the relative humidity to decrease, increasing the degree of unsaturation of water vapor in the air.

[0065] In one embodiment, please refer to Figures 1 to 5 As shown, the drying module 100 also includes a second heat exchanger 32, which is disposed in the main drying air duct 21 and located downstream of the moisture absorption and dehumidification component 7.

[0066] The moisture absorption and dehumidification assembly 7 is used to remove at least part of the water in the air inside the main drying duct 21, and the second heat exchanger 32 is used to heat the air inside the main drying duct 21.

[0067] After passing through the second heat exchanger 32, the absolute humidity of the air remains unchanged, while the relative humidity decreases. Thus, the air re-enters the drum 1, effectively removing moisture from the clothes.

[0068] After passing through the moisture absorption and dehumidification component 7, the first portion of air returns upstream of the moisture absorption and dehumidification component 7 via the secondary drying air duct 22 and is dehumidified by the component 7, further reducing the absolute humidity of the first portion of air. The second portion of air continues to flow and passes through the second heat exchanger 32. The absolute humidity of the first portion of air is lower than that of the second portion of air, and the combined absolute humidity of the first and second portions of air is also lower than that of the second portion of air. Thus, both the absolute and relative humidity of the air entering the drum 1 are reduced, improving the efficiency of moisture removal from the clothes inside the drum 1.

[0069] Please see Figure 1 and Figure 2 and in conjunction with reference Figure 11 As shown, the moisture absorption and dehumidification assembly 7 includes a moisture absorption section 711 and a desorption section 712. The moisture absorption section 711 is used to absorb water in the air and can heat the air. The advantages of this configuration are: on the one hand, the moisture absorption section 711 can reduce the water vapor content in the air; on the other hand, during the process of absorbing water, the kinetic energy of water molecules is converted into internal energy, releasing heat. After the air passes through the moisture absorption section 711 of the moisture absorption and dehumidification assembly 7, the temperature can be increased, which can increase the temperature of the air entering the drum 1, which is conducive to further reducing the relative humidity of the air entering the drum 1 and improving the efficiency of dehumidification of the clothes.

[0070] In this embodiment, the moisture absorption and dehumidification component 7 can simultaneously reduce the absolute humidity and relative humidity of the air, thereby providing high-temperature and low-humidity (low relative humidity and low absolute humidity) air to the drum 1, and significantly increasing the dehumidification efficiency.

[0071] The moisture absorption and dehumidification component 7 contains a large number of moisture-absorbing materials with microporous structures, such as silica gel and molecular sieves. Water molecules can enter these microporous structures through diffusion and be captured.

[0072] In some embodiments, such as Figure 11 As shown, the moisture absorption and desiccation assembly 7 includes a moisture absorption disc 71, which comprises the aforementioned moisture absorption section 711 and desorption section 712. The moisture absorption disc 71 is rotatably mounted within the housing, with a portion located within the main drying air duct 21 and a portion located within the regeneration air duct 4. The moisture absorption section 711 and desorption section 712 do not refer to two fixed parts on the moisture absorption disc 71. The moisture absorption section 711 refers to the part of the moisture absorption and desiccation assembly 7 located within the main drying air duct 21 that adsorbs water from the air at any given time. After the moisture absorption section 711 rotates and is located outside the main drying air duct 21, it undergoes a process of desorbing water molecules again; this is the regeneration process of the moisture absorption section 711. Therefore, the desorption section 712 refers to the part on the moisture absorption disc 71 where the water adsorbed has been re-desorbed and become dry. As the moisture absorption disc 71 rotates, the moisture absorption section 711 and the desorption section 712 continuously switch between each other.

[0073] In some embodiments, the moisture-absorbing disc 71 can be a honeycomb or corrugated disc carrying a desiccant, capable of adsorbing and desorbing absorbed water to achieve repeated desorption and regeneration. In some embodiments, the moisture-absorbing disc 71 specifically includes an inorganic / organic fiber carrier, such as ceramics, glass fibers, MOFs (Metal-Organic Frameworks), COFs (Covalent-Organic Frameworks), cordierite, etc., with a desiccant coated on the fiber carrier. The desiccant is uniformly distributed between the fibers and on the surface of the fiber carrier to achieve moisture adsorption. The desiccant can be, for example, zeolite, modified / synthetic zeolite, molecular sieves (including but not limited to single-crystal molecular sieves or mixed-crystal molecular sieves such as A-type molecular sieves, X / Y-type molecular sieves, ZSM molecular sieves, Beta molecular sieves, etc.), polymeric desiccant, alkali metal aluminosilicates (13X molecular sieves), lithium chloride, silica gel, modified silica gel, activated alumina, and other materials with moisture-absorbing properties.

[0074] Please see Figures 1 to 5 As shown, the second heat exchanger 32 includes a condenser 63.

[0075] Please refer to the following: Figure 10 As shown, the drying module 100 also includes a compressor 60 and a throttling device 64 disposed in the receiving cavity of the housing. The compressor 60, condenser 63, throttling device 64 and first evaporator 61 are connected in sequence along the refrigerant flow direction.

[0076] The heat pump system 6 consists of at least a compressor 60, a condenser 63, a throttling device 64, and a first evaporator 61.

[0077] The refrigerants mentioned include hydrofluorocarbons (HFCs), chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), or natural refrigerants (such as ammonia, carbon dioxide, hydrocarbons, etc.).

[0078] like Figures 1 to 5 As shown, the drying module 100 also includes a regeneration air duct 4, and another part of the moisture absorption and desiccation component 7 is disposed within the regeneration air duct 4. That is, both ends of the regeneration air duct 4 are connected to the desorption section 712, and air in the regeneration air duct 4 can pass through the desorption section 712. The desorption section 712 desorbs water molecules within the regeneration air duct 4.

[0079] In one embodiment, please refer to Figures 1 to 5As shown, the drying module 100 also includes a fourth heat exchanger 37, which is located within the regeneration air duct 4 and upstream of the desorption section 712, for heating the air within the regeneration air duct 4. The high-temperature air passing through the desorption section 712 provides energy for the resorption of water molecules from the microporous structure.

[0080] like Figure 1 , Figure 2 and Figure 4 As shown, the fourth heat exchanger 37 includes a heating element 371. In other alternative embodiments, the fourth heat exchanger 37 may include another condenser (not shown).

[0081] Please see Figure 5 As shown, in one embodiment, the regeneration duct 4 is an open duct. An open duct, as used here, means that the regeneration duct 4 is connected to the space outside the housing. Air enters the regeneration duct from outside the housing and is heated, then passes through the desorption section 712 and is discharged outside the housing.

[0082] Please see Figure 1 and Figure 2 As shown, in one embodiment, the drying module 100 further includes a regeneration fan 38, which is at least partially disposed within the regeneration duct 4 to provide power for the flow of air within the regeneration duct 4.

[0083] In this embodiment, the regeneration fan 38 may be optionally located upstream of the fourth heat exchanger 37, such as... Figure 5 As shown. This also avoids the adverse effects of high temperature on the regeneration fan 38.

[0084] Please see Figures 1 to 4 , Figure 6 As shown, in one embodiment, the regeneration duct 4 is a closed-loop duct, and the drying module 100 further includes a third heat exchanger 36, which is located within the regeneration duct 4 and downstream of the desorption section 712, for condensing water vapor in the air within the regeneration duct 4. The closed-loop regeneration duct 4 has a wider range of applications and avoids the discharge of high-temperature energy, achieving internal energy circulation and reducing energy consumption.

[0085] In one embodiment, the regeneration fan 38 is located downstream of the third heat exchanger 36 and upstream of the fourth heat exchanger 37. This arrangement is intended to ensure that the air temperature and absolute humidity are low after passing through the third heat exchanger 36. In this environment, the regeneration fan 38 operates in a low-temperature, low-humidity (low absolute humidity) environment, which helps to extend the lifespan of the regeneration fan 38.

[0086] In one embodiment, such as Figures 1 to 4 As shown, the third heat exchanger 36 includes a second evaporator 62.

[0087] The second evaporator 62 is located in the heat pump system 6. For example... Figure 10 As shown, the second evaporator 62 is connected in series upstream or downstream of the first evaporator 61, or, as... Figure 9 As shown, the second evaporator 62 is connected in parallel with the first evaporator 61.

[0088] In one embodiment, such as Figure 9 As shown, the first evaporator 61 and the second evaporator 62 are connected in parallel. A first throttling device 641 is provided between the condenser 63 and the first evaporator 61, and a second throttling device 642 is provided between the condenser 63 and the second evaporator 62. The refrigerant flowing out of the condenser 63 is divided into two paths through a three-way connector (not shown), flowing to the first throttling device 641 and the second throttling device 642 respectively.

[0089] In one embodiment, the first throttling device 641 includes a first capillary filament, and the second throttling device 642 includes a second capillary filament.

[0090] The refrigerant flowing out of condenser 63 is in a high-pressure liquid state. After throttling, the pressure decreases, allowing the refrigerant to evaporate and transform at low pressure. The length and inner diameter of the first and second capillary drain pipes determine the resistance to refrigerant flow, which in turn determines the amount of refrigerant entering the first and second evaporators 61 and 62, and consequently, the refrigeration temperatures of the first and second evaporators 61 and 62.

[0091] In one optional embodiment, the inner diameters of the first capillary filament and the second capillary filament are not equal, and / or, the lengths of the first capillary filament and the second capillary filament are not equal. Based on the different cooling requirements of the first evaporator 61 and the second evaporator 62, the capillary filaments with different inner diameters and / or lengths determine the cooling temperatures of the first evaporator 61 and the second evaporator 62.

[0092] In one alternative embodiment, the inner diameters of the first capillary tube and the second capillary tube are equal, and the lengths of the first capillary tube and the second capillary tube are equal, so that the cooling temperatures of the first evaporator 61 and the second evaporator 62 are the same.

[0093] Please refer to the following: Figure 8 As shown, the drying module 100 also includes a control system 9. In one embodiment, the first throttling device 641 includes a first electronic expansion valve, and the control system 9 is connected to the first electronic expansion valve to control the opening degree of the first electronic expansion valve. And / or, the second throttling device 642 includes a second electronic expansion valve, and the control system 9 is connected to the second electronic expansion valve to control the opening degree of the second electronic expansion valve.

[0094] In one optional embodiment, the first throttling device 641 includes a first electronic expansion valve, the second throttling device 642 includes a second electronic expansion valve, and the control system 9 is used to control the opening degree of the first electronic expansion valve and the second electronic expansion valve.

[0095] The purpose of this setting is that, during the actual operation of the clothing processing equipment 200, the cooling temperature of the first evaporator 61 and the second evaporator 62 can be adjusted by controlling the first throttling device 641 and the second throttling device 642, based on the external environment, internal environment, or specific needs.

[0096] For example, when the ambient temperature is low, and during the initial operation of the garment processing equipment 200, the air temperature inside the drum 1 is low and the relative humidity is high, resulting in a low ability for the air to remove moisture from the garments as it passes through the drum 1. In this situation, the control system 9 can increase the opening of the first electronic expansion valve, increasing the amount of refrigerant flowing into the first evaporator 61. More refrigerant enters the first evaporator 61, where it absorbs heat and vaporizes. Due to the increased refrigerant flow, the pressure inside the first evaporator 61 rises. Based on the pressure-temperature characteristics of the refrigerant, the evaporation temperature of the refrigerant inside the first evaporator 61 increases. This increases the cooling temperature of the first evaporator 61 and raises the temperature of the air entering the drum 1. Thus, rapid heating of the air inside the drum 1 is achieved, improving dehumidification efficiency.

[0097] As the garment processing equipment 200 operates, the air temperature inside the drum 1 gradually rises. When the temperature inside the drum 1 is high, the opening of the first electronic expansion valve can be reduced by the control system 9, thus reducing the amount of refrigerant flowing into the first evaporator 61. With less refrigerant entering the first evaporator 61, it absorbs heat and vaporizes. Due to the reduced refrigerant flow, the pressure inside the first evaporator 61 decreases. Based on the pressure-temperature characteristics of the refrigerant, the evaporation temperature of the refrigerant in the first evaporator 61 decreases. This lowers the evaporation temperature of the first evaporator 61, enabling efficient condensation of the air in the main drying duct 21 and improving dehumidification efficiency.

[0098] Conversely, when the ambient temperature is high, the air entering the drum 1 already has a certain temperature and low relative humidity. At this time, the opening of the first electronic expansion valve can be reduced by the control system 9 to lower the pressure inside the first evaporator 61 and reduce the cooling temperature of the first evaporator 61, so as to quickly condense the air and improve the dehumidification efficiency.

[0099] Similarly, when the ambient temperature is low, and / or during the initial operation of the garment processing equipment 200, the air temperature and relative humidity in the regeneration duct 4 and upstream of the desorption section 712 are low, resulting in a low desorption capacity of the air passing through the desorption section 712 for water molecules. In this case, the control system 9 can increase the opening of the second electronic expansion valve, thereby increasing the pressure within the second evaporator 62, raising the cooling temperature of the second evaporator 62, and increasing the temperature of the air passing through the desorption section 712. This achieves rapid heating of the air in the regeneration duct 4 and upstream of the desorption section 712, thus improving the desorption efficiency.

[0100] As the garment processing equipment 200 operates, the air temperature inside the regeneration duct 4 and upstream of the desorption section 712 gradually rises. When the temperature inside the regeneration duct 4 and upstream of the desorption section 712 is high, the opening of the second electronic expansion valve can be reduced by the control system 9 to lower the pressure inside the second evaporator 62, thereby reducing the cooling temperature of the second evaporator 62 and enabling efficient condensation of the air downstream of the desorption section 712, thus improving dehumidification efficiency.

[0101] Conversely, when the ambient temperature is high, the air in the regeneration duct 4 and the drum 1 upstream of the desorption section 712 already has a certain temperature and low relative humidity. At this time, the opening of the second electronic expansion valve can be reduced by the control system 9 to reduce the pressure in the second evaporator 62 and reduce the cooling temperature of the second evaporator 62, so as to efficiently condense the air downstream of the desorption section 712 and improve the dehumidification efficiency.

[0102] In one embodiment, the control system 9 is configured to control at least one of the first electronic expansion valve and the second electronic expansion valve after the drum 1 is started. Optionally, the control system 9 is configured to control at least one of the first electronic expansion valve and the second electronic expansion valve at at least one preset time during the operation of the drum 1. Specifically, for example, the control system 9 is configured to adjust at least one of the first electronic expansion valve and the second electronic expansion valve when the drum 1 is started, and to readjust at least one of the first electronic expansion valve and the second electronic expansion valve at at least one preset time after the drum 1 has been running.

[0103] In one embodiment, the control system 9 is configured to control the first electronic expansion valve based on the temperature inside the drum 1 and / or the ambient temperature. Optionally, the control system 9 is configured to control the first electronic expansion valve when the temperature inside the drum 1 and / or the ambient temperature reaches one or more first preset temperature values.

[0104] In one embodiment, the control system 9 is configured to control the second electronic expansion valve based on the temperature inside the regeneration duct 4 and upstream of the desorption section 712 and / or the ambient temperature. Optionally, the control system 9 is configured to control the second electronic expansion valve when the temperature inside the regeneration duct 4 and upstream of the desorption section 712 reaches one or more second preset temperature values.

[0105] In addition, in one embodiment, the control system 9 can combine multiple factors, including the preset time during the operation of the drum 1, the temperature inside the drum 1, the ambient temperature, and the temperature inside the regeneration air duct 4 and upstream of the desorption section 712, to jointly control the first electronic expansion valve and the second electronic expansion valve.

[0106] The garment processing equipment 200 may also include corresponding temperature measuring elements (not shown). For example, a first temperature measuring element is disposed inside the housing on the side of the air inlet 11 of the roller 1, for measuring the temperature of the air entering the roller 1. For example, a second temperature measuring element is disposed inside the housing on the air inlet side of the desorption section 712, for measuring the temperature of the air passing through the desorption section 712. As another example, a third temperature measuring element is disposed on the housing for measuring the ambient temperature. Each temperature measuring element is connected to the control system 9 to provide corresponding temperature information to the control system 9.

[0107] Please refer to the following: Figure 8 As shown, the moisture absorption and dehumidification assembly 7 also includes a first driving member 72, which is used to drive the moisture absorption turntable 71 to rotate.

[0108] Please see Figure 8 As shown. The control system 9 is connected to the drum 1, the compressor 60, and the first drive component 72 to control the rotation of the drum 1, the operation of the compressor 60, and the operation of the first drive component 72.

[0109] In an optional embodiment, the control system 9 is further configured to control the rotational speed of the moisture-absorbing turntable 71 by controlling the first drive member 72. The purpose of this arrangement is that the main drying air duct 21 and the regeneration air duct 4 are two air ducts with independent functions and independent operation. However, based on the rotation of the moisture-absorbing turntable 71, when the desorption section 712 switches from the regeneration air duct 4 to the main drying air duct 21, a portion of the high-temperature air located in the microporous structure of the desorption section 712 will be simultaneously rotated into the main drying air duct 21 and flow in the main drying air duct 21. This increases the temperature of the air downstream of the moisture-absorbing section 711 that enters the drum 1.

[0110] In one embodiment, when the ambient temperature is low, the temperature inside the drum 1 is low, or when the garment processing equipment 200 is initially running, the control system 9 controls the desiccant 71 to rotate at a relatively high speed so that the high-temperature air in the regeneration air duct 4 enters the main drying air duct 21; as the garment processing equipment 200 runs, or when the temperature inside the drum 1 is high, or when the ambient temperature is high, the control system 9 reduces the rotation speed of the desiccant 71.

[0111] In one embodiment, please refer to Figure 1 and Figure 2 As shown, the drying module 100 also includes a main circulation fan 33, which is at least partially located in the main drying air duct 21 to provide airflow power within the main drying air duct 21 and maintain airflow through the drying module 100 and the drum 1 at a sufficient and stable speed.

[0112] The position of the drum 1 within the main drying air duct 21 can be arranged according to specific design requirements and the adaptability of the space within the casing. For example, the main circulating fan 33 can be located between the air outlet 12 of the drum 1 and the first evaporator 61, or between the first evaporator 61 and the moisture absorption and dehumidification assembly 7, or between the moisture absorption and dehumidification assembly 7 and the second heat exchanger 32, or as... Figure 1 and Figure 2 Figure 3 As shown, it can be set between the second heat exchanger 32 and the air inlet 11 of the drum 1.

[0113] In addition, in some cases, the main circulation fan 33 may include multiple fans, which may be installed in one of the above-mentioned locations simultaneously, or multiple fans may be installed in the above-mentioned locations.

[0114] Please see Figure 4 and Figure 5 As shown, in one embodiment, the drying module 100 further includes a secondary circulation fan 35, which is disposed in the secondary drying duct 22 and is used to provide power for air to flow in the secondary drying duct 22 when the secondary drying duct 22 is connected to the main drying duct 21.

[0115] like Figure 4 As shown, in one embodiment, the drying module 100 may include a one-way valve 82, which is disposed in the secondary drying air duct 22 to ensure that the air in the secondary drying air duct 22 can only flow in one direction to the upstream of the moisture absorption and dehumidification component 7.

[0116] In one alternative embodiment, the one-way valve 82 can be used in conjunction with the secondary circulation fan 35, such as... Figure 4 As shown. The combination of the one-way valve 82 and the secondary circulation fan 35 can completely avoid the problem of air backflow in the secondary drying air duct 22 caused by air pressure difference.

[0117] The control system 9 is connected to the main circulation fan 33, the secondary circulation fan 35 and the regeneration fan 38. The control system 9 is used to control the start and stop of the main circulation fan 33, the secondary circulation fan 35 and the regeneration fan 38.

[0118] In one optional embodiment, the control system 9 is further configured to control the rotational speed of at least one of the main circulating fan 33, the secondary circulating fan 35, and the regeneration fan 38, so as to correspondingly adjust the airflow speed within the main drying duct 21 and the regeneration duct 4. The purpose of this configuration is to allow for adjustment of the airflow speed within the main drying duct 21, the secondary drying duct 22, and the regeneration duct 4 based on external or internal environmental conditions or specific requirements.

[0119] Next, please refer to the following: Figure 1 and Figure 2 As shown, in the drying module 100, the secondary drying air duct 22 is configured to be openable and closable connected to the main drying air duct 21. Figure 1 As shown, the secondary drying air duct 22 is connected to the main drying air duct 21, as follows: Figure 2 As shown, the secondary drying air duct 22 is connected to the main drying air duct 21.

[0120] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the switch assembly 81 is in the open state. At this time, the secondary drying air duct 22 is connected to the main drying air duct 21, allowing the first part of the air to undergo secondary dehumidification. Figure 2 As shown, the switch assembly 81 is in the closed state. At this time, the secondary drying air duct 22 is disconnected from the main drying air duct 21, and all the air flows unidirectionally to the second heat exchanger 32 via the moisture absorption and dehumidification assembly 7.

[0121] The purpose of this setting is to allow selective connection of the secondary drying air duct 22 based on external or internal environment or specific needs.

[0122] For example, in the early stages of operation of the garment processing equipment 200, the moisture content of the garments is relatively high, or when the ambient temperature is low, or when the temperature inside the drum 1 is low, the absolute humidity of the air flowing out of the drum 1 is relatively high. After passing through the moisture absorption and dehumidification component 7, the absolute humidity decreases somewhat, but remains relatively high. At this time, the secondary drying duct 22 can be connected to the main drying duct 21 by the switching component 81 to reduce the absolute humidity of the air entering the drum 1, improve moisture removal efficiency, and save energy. In the later stages of operation of the garment processing equipment 200, the moisture content of the garments is relatively low, or when the ambient temperature is high, or when the temperature inside the drum 1 is high, the absolute humidity of the air flowing out of the drum 1 is relatively low. After passing through the moisture absorption and dehumidification component 7, the reduction in absolute humidity is also relatively limited. At this time, the secondary drying duct 22 can be disconnected from the main drying duct 21 by the switching component 81, allowing air to directly enter the drum 1. This helps to reduce the airflow resistance within the main drying duct 21.

[0123] Specifically, the drying module 100 includes a switching assembly 81 for controlling the on / off state of the secondary drying air duct 22 and the main drying air duct 21. The switching assembly 81 is used to control the on / off state of the secondary drying air duct 22 and the main drying air duct 21.

[0124] In one alternative example, the switch assembly 81 is configured to switch between a first position and at least one second position; in the first position, the switch assembly 81 closes the secondary drying air duct 22, and in the second position, the switch assembly 81 opens the secondary drying air duct 22; in different second positions, the switch assembly 81 opens the secondary drying air duct 22 at different ratios to control the proportion of air entering the secondary drying air duct 22.

[0125] Specifically, please refer to the following: Figure 1 , Figure 2 and Figure 8 As shown, in one embodiment, the switching assembly 81 includes a second driving member 811 and a moving member 812. The moving member 812 is disposed within the secondary drying air duct 22 (which can be understood to include being disposed at the connection between the secondary drying air duct 22 and the main drying air duct 21). The second driving member 811 is used to drive the moving member 812 to switch between a first position and at least one second position. In the first position, the moving member 812 closes the secondary drying air duct 22. In the second position, the moving member 812 opens the secondary drying air duct 22. In different second positions, the moving member 812 opens the secondary drying air duct 22 at different ratios to control the proportion of air entering the secondary drying air duct 22.

[0126] The second driving member 811 can be configured to drive the moving member 812 to translate along a straight line to open and close the secondary drying air duct 22. Alternatively, the second driving member 811 can be configured to drive the moving member 812 to rotate to open and close the secondary drying air duct 22. In further embodiments, the second driving member 811 can drive the moving member 812 to operate in other ways.

[0127] For example, in the early stage of operation of the clothing processing equipment 200, the moisture content of the clothes is relatively high, or when the external environment is low, or when the temperature inside the drum 1 is low, the absolute humidity of the air flowing out of the drum 1 is relatively high. At this time, more air can be allowed to enter the secondary drying air duct 22 for secondary dehumidification through the moving part 812.

[0128] Conversely, in the later stages of the operation of the garment processing equipment 200, or when the external environment is hot, or when the temperature inside the drum 1 is high, a smaller amount of air can be controlled by the moving part 812 to enter the secondary drying duct 22 for secondary dehumidification.

[0129] The control system 9 is connected to the second drive unit 811 and is used to control the action of the second drive unit 811 to control the switching between the first position and the second position of the moving unit 812.

[0130] In one embodiment, the control system 9 is configured to control the second drive member 811 to start at least at a preset time during the operation of the drum 1. For example, at a first moment after the drum 1 starts, the control movable member 812 is in a first position; at a second moment after the drum 1 starts, the control movable member 812 is in a second position; and at a third moment after the drum 1 starts, the control movable member 812 is in another second position.

[0131] In one embodiment, the control system 9 is configured to control the second drive member 811 according to the temperature inside the drum 1. For example, when the temperature inside the drum 1 is a first temperature, the control member 812 is in a first position; when the temperature inside the drum 1 is a second temperature, the control member 812 is in a second position; and when the temperature inside the drum 1 is a third temperature, the control member 812 is in another second position.

[0132] In one embodiment, the control system 9 is configured to control the second actuator 811 according to the ambient temperature. For example, when the ambient temperature is a fourth temperature, the actuator 812 is in a first position; when the ambient temperature is a fifth temperature, the actuator 812 is in a second position; and when the ambient temperature is a sixth temperature, the actuator 812 is in another second position.

[0133] In some embodiments, the control system 9 may control the position of the moving part 812 by combining multiple factors, including at least one preset time during the operation of the roller 1, the temperature inside the roller 1, and the ambient temperature.

[0134] Please see Figure 8 As shown, in one embodiment, the garment processing device 200 further includes a third drive member 13, which drives the roller 1 to rotate. Both the compressor 60 and the third drive member 13 are located within the receiving cavity.

[0135] In one embodiment, the drying module 100 may include a base (not shown), and the housing includes a plurality of side plates (not shown) interconnected and enclosing the base. The base is located below the roller 1. The main drying air duct 21, the secondary drying air duct 22, and the regeneration air duct 4 are disposed on the base. At least a portion of the receiving cavity may be disposed on the base and located outside the main drying air duct 21, the secondary drying air duct 22, and the regeneration air duct 4.

[0136] Please see Figure 7 As shown, in one embodiment, the drying module 100 includes a heat exchanger, and the connecting segments of the secondary drying air duct 22 are respectively arranged on both sides of the heat exchanger.

[0137] Specifically, such as Figure 7 As shown, the heat exchanger is a first heat exchanger 34. In one specific embodiment, the first heat exchanger 34 includes a first evaporator 61. In this embodiment, the first portion of air undergoes double dehumidification by passing through the first evaporator 61 twice, which helps to reduce its absolute humidity and lower the relative and absolute humidity of the air entering the drum 1, thereby improving drying efficiency.

[0138] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A drying module, characterized in that, include: The main drying air duct, the secondary drying air duct, and one or two heat exchangers disposed within the main drying air duct; the two ends of the secondary drying air duct are respectively disposed on the main drying air duct on both sides of one or two of the heat exchangers.

2. The drying module as described in claim 1, characterized in that, The drying module includes a heat exchanger, which can be a first heat exchanger or a moisture absorption and desiccation component.

3. The drying module as described in claim 1, characterized in that, The drying module includes two heat exchangers, which are a first heat exchanger and a moisture absorption and desiccation component arranged along the airflow direction, respectively. The two ends of the secondary drying air duct are respectively arranged on both sides of the first heat exchanger, or on both sides of the moisture absorption and desiccation component, or on the two sides of the first heat exchanger and the moisture absorption and desiccation component that are far apart from each other.

4. The drying module as described in claim 2 or 3, characterized in that, The secondary drying air duct is configured to be openable and closable in connection with the main drying air duct.

5. The drying module as described in claim 4, characterized in that, The drying module includes a switching component for controlling the connection and disconnection between the secondary drying air duct and the main drying air duct; The switching assembly is configured to switch between a first position and at least one second position; in the first position, the switching assembly closes the secondary drying duct, and in different second positions, the switching assembly opens the secondary drying duct at different ratios.

6. The drying module as described in claim 3, characterized in that, The first heat exchanger includes a first evaporator; the moisture absorption and desorption assembly includes a moisture absorption section and a desorption section, wherein the moisture absorption section is used at least to absorb water from the circulating medium in the main drying duct.

7. The drying module as described in claim 6, characterized in that, The drying module further includes a fourth heat exchanger and a regeneration air duct. The desorption section is located in the regeneration air duct, and the fourth heat exchanger is located in the regeneration air duct and upstream of the desorption section.

8. The drying module as described in claim 7, characterized in that, The regeneration air duct is a closed-loop air duct, and the drying module also includes a third heat exchanger located downstream of the desorption section and upstream of the fourth heat exchanger.

9. The drying module as described in claim 8, characterized in that, The drying module also includes a second heat exchanger, which is located in the main drying duct and downstream of the secondary drying duct.

10. The drying module as described in claim 9, characterized in that, The third heat exchanger includes a second evaporator; at least one of the second heat exchanger and the fourth heat exchanger includes a condenser; the drying module further includes a compressor and a throttling device; the compressor, the condenser, the throttling device, the second evaporator, and the first evaporator are connected sequentially along the refrigerant flow direction.

11. The drying module as described in claim 9, characterized in that, It also includes a regeneration fan and a main circulation fan, wherein the regeneration fan is located within the regeneration duct and upstream of the fourth heat exchanger, and the main circulation fan is located within the main drying duct; and / or The drying module further includes a secondary circulation fan, which is disposed within the secondary drying air duct, and / or the drying module further includes a one-way valve, which is disposed within the secondary drying air duct.

12. The drying module as described in claim 3, characterized in that, It also includes a first driving component and a control system, wherein the first driving component is used to drive the moisture absorption and desiccation assembly to rotate; and the control system is used to control the rotational speed of the moisture absorption and desiccation assembly through the first driving component.

13. A garment processing device, characterized in that, include: roller; as well as The drying module as described in any one of claims 1 to 12 is used to dry the circulating medium flowing out of the drum.

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