Drying module and clothes processing equipment

Abstract

The utility model is suitable for the technical field of household appliances, and provides a drying module and clothes processing equipment, the drying module comprises a base, a main drying air duct and a secondary drying air duct are arranged in the base, and the drying module further comprises 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 one or two heat exchangers respectively, the secondary drying air duct can enable part of air to return to the upstream of one or two heat exchangers again for secondary dehumidification, the content of water vapor in the air can be reduced, the content of water vapor in the air entering the roller is reduced, and the drying efficiency is improved. The efficiency that air desorbs moisture from clothes in the drum is improved, the purpose of rapidly drying the clothes with low-humidity air is achieved, and meanwhile energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and provides a drying module and a clothes processing device. BACKGROUND

[0002] At present, the main process of drying clothes is to send hot air with high temperature and low humidity into the drum to evaporate the moisture of the clothes and reduce the water content of the clothes, and the humid hot air discharged after passing through the drum is first cooled and condensed and then heated and sent into the drum again.

[0003] At present, the above-mentioned mode has the problem that the dehumidification effect is limited, and the humidity of the air entering the drum is high, which reduces the drying speed of the clothes, prolongs the drying time, and increases the energy consumption. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiment of the present application is to provide a drying module, and to provide a solution for improving drying efficiency.

[0005] The embodiment of the present application is implemented as follows: a drying module comprises:

[0006] a base, the base is provided with a main drying air duct and a secondary drying air duct; further comprising 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.

[0007] In one embodiment, the drying module comprises one heat exchanger, and the heat exchanger is a first heat exchanger or a moisture absorption and removal assembly.

[0008] In one embodiment, the drying module comprises two heat exchangers, and the two heat exchangers are respectively a first heat exchanger and a moisture absorption and removal assembly arranged along the air direction; the two ends of the secondary drying air duct are arranged on the two sides of the first heat exchanger, or on the two sides of the moisture absorption and removal assembly, or on the two sides of the first heat exchanger and the moisture absorption and removal assembly away from each other.

[0009] In one embodiment, the secondary drying air duct is configured to be openable and closable in communication with the main drying air duct.

[0010] In one embodiment, the drying module comprises a switch assembly for controlling the on-off of the secondary drying air duct and the main drying air duct;

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

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

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

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

[0015] In one embodiment, the drying module further includes a second heat exchanger, which is disposed in the main drying air duct and downstream of the secondary drying air 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 also includes a compressor and a throttling device; the compressor, the condenser, the throttling device, the second evaporator, and the first evaporator are connected in sequence along the refrigerant flow direction.

[0017] In one embodiment, the system further comprises a regeneration fan and a main circulation fan, wherein the regeneration fan is arranged in the regeneration air duct and upstream of the fourth heat exchanger, and the main circulation fan is arranged in the main drying air duct; and / or

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

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

[0020] Another object of the embodiments of the present application is to provide a clothes processing device, comprising:

[0021] rollers; and

[0022] As described in the above embodiments, the drying module is used to dry the air flowing out of the drum.

[0023] The drying module and clothes processing device provided in the embodiments of the present application have the following beneficial effects:

[0024] The drying module and the clothes processing device provided by the embodiments of the present application, the drying module of which comprises a main drying air duct, a secondary drying air duct, and one or two heat exchangers arranged in the main drying air duct, 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 respectively, the secondary drying air duct can make part of the air return to the upstream of the one or two heat exchangers to be dehumidified again, the water vapor content in the air can be reduced, the water vapor content of the air entering the drum can be reduced, the efficiency of the air in desorbing the water from the clothes in the drum can be improved, the purpose of drying the clothes quickly with low-humidity air can be achieved, and the energy consumption can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0026] Figure 1 is a structural schematic diagram of a clothes processing device provided by an embodiment of the present application, in which the switch assembly is in an open state;

[0027] Figure 2 is a structural schematic diagram of a clothes processing device provided by an embodiment of the present application, in which the switch assembly is in a closed state;

[0028] Figure 3 is a structural schematic diagram of a clothes processing device provided by another embodiment of the present application;

[0029] Figure 4 is a structural schematic diagram of a clothes processing device provided by still another embodiment of the present application;

[0030] Figure 5 is a structural schematic diagram of a clothes processing device provided by still another embodiment of the present application;

[0031] Figure 6 is a structural schematic diagram of a clothes processing device provided by still another embodiment of the present application;

[0032] Figure 7 is a structural schematic diagram of a clothes processing device provided by still another embodiment of the present application;

[0033] Figure 8 is a control relationship schematic diagram of a clothes processing device provided by an embodiment of the present application;

[0034] Figure 9 is a structural schematic diagram of a heat pump system in a clothes processing device provided by an embodiment of the present application;

[0035] Figure 10 This is another structural schematic diagram of the heat pump system in the clothes processing device provided in an embodiment of the present application;

[0036] Figure 11 It is a structural schematic diagram of the moisture absorption turntable in the clothing processing device provided in an embodiment of the present application.

[0037] The meanings of the marks in the figure are:

[0038] 200-Clothing processing equipment;

[0039] 1-drum, 10-clothes processing space, 11-air inlet, 12-air outlet, 13-third driving member;

[0040] 100-drying module;

[0041] 21-main drying air duct, 22-secondary drying air duct;

[0042] 32 - second heat exchanger, 33 - primary 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-Regeneration 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 dehumidification component, 71-moisture absorption turntable, 711-moisture absorption part, 712-desorption part, 72-first driving member;

[0046] 81-switch assembly, 811-second driving member, 812-moving member, 82-check valve;

[0047] 9-Control system. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0049] It should be noted that when a component is referred to as being "fixed on" or "set on" another component, it may be fixed or set on the other component directly or indirectly. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0050] In order to illustrate the technical solution described in this application, the following is a detailed description with reference to specific drawings and embodiments.

[0051] See also Figure 1 and Figure 2 As shown, an embodiment of the present application provides a clothes processing device 200, which includes a housing (not shown), a drum 1 disposed in the housing, and a drying module 100 disposed in the housing and outside the drum 1. The drying module 100 is used to dry the circulating medium flowing out of the drum 1.

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

[0053] The aforementioned circulating medium may include various gases and water vapor, and may also include droplets. Based on practical applications, the following description will be simplified to air, that is, air containing water vapor.

[0054] After passing through one or both heat exchangers, a portion of the air (assuming this is the first portion of air) can return to the upstream portion of one or both heat exchangers via the secondary drying duct 22, where the absolute humidity of the first portion of air is further reduced. The remaining portion of air (assuming this is the second portion of air) flows directly into drum 1. The absolute humidity of the first portion of air is lower than that of the second portion of air, and the absolute humidity of the combined first and second portions of air is also lower than that of the second portion of air. This reduces both the absolute and relative humidity of the air entering drum 1, improving the efficiency of moisture removal from clothing within drum 1.

[0055] The drying module 100 provided in the embodiment of the present application has two ends of a secondary drying duct 22 respectively arranged on the main drying duct 21 on both sides of one or two heat exchangers. The secondary drying duct 22 can allow part of the 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 1, thereby improving the efficiency of air desorption from 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 shell includes a receiving chamber (not shown) which is isolated from the main drying air duct 21 and the secondary drying air duct 22. The drum 1 is arranged in the receiving chamber. Figure 1 and Figure 2 As shown, the drum 1 has an air inlet 11, a clothing processing space 10 and an air outlet 12 which are connected in sequence. The air inlet 11 of the drum 1 is connected to the air outlet end of the main drying air duct 21, and the air outlet 12 of the drum 1 is connected to the air inlet end of the main drying air duct 21. The main drying air duct 21 is connected to the drum 1 to form a closed circulation air duct, and the air circulates inside.

[0057] like Figures 1 to 5 As shown, the drying module 100 includes two heat exchangers, namely a first heat exchanger 34 arranged in the main drying air duct 21 along the wind direction and a moisture absorption and dehumidification component 7 partially arranged in the main drying air duct 21. Figure 1 and Figure 2 As shown, both ends of the secondary drying duct 22 are respectively arranged on the main drying duct 21 on both sides of the moisture absorption and dehumidification component 7, that is, the secondary drying duct 22 is connected in parallel with the moisture absorption and dehumidification component 7; or Figures 3 to 5 As shown, both ends of the secondary drying duct 22 are respectively arranged on the main drying duct 21 at one end away from the first heat exchanger 34 and the moisture absorption and dehumidification component 7, that is, the secondary drying duct 22 is connected in parallel with the first heat exchanger 34 and the moisture absorption and dehumidification component 7; or Figure 6 As shown, both ends of the secondary drying air duct 22 are respectively arranged 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 configuration of the moisture absorption and dehumidification assembly 7 and the first heat exchanger 34 allows for secondary dehumidification of the air in the main drying duct 21. The configuration of the secondary drying duct 22 allows for tertiary dehumidification of a portion of the air in the main drying duct 21. This further reduces the absolute humidity of the air entering the drum 1.

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

[0060] For one example, see 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 in the main drying air duct 21. After passing through the first evaporator 61, the absolute humidity of the air decreases and the relative humidity increases.

[0061] When drying clothes, the main drying duct 21 circulates with the air in the drum 1 to take away the moisture from the clothes in the drum 1. The air flowing out of the drum 1 contains a large amount of water vapor. After passing through the moisture absorption and dehumidification component 7, part of the water vapor is removed, and the absolute humidity and relative humidity of the air are reduced.

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

[0063] Relative humidity: refers to the percentage of the actual water vapor content in the air (absolute humidity) 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 is close to saturation.

[0064] When the absolute humidity of the air remains constant, a drop in temperature will cause the relative humidity to rise, and may even reach a state of water vapor saturation, resulting in condensation. When the absolute humidity of the air remains constant, a rise in temperature will cause the relative humidity to fall, and the degree of water vapor unsaturation in the air will increase.

[0065] For one example, see Figures 1 to 5 As shown, the drying module 100 further includes a second heat exchanger 32 , which is disposed in the main drying air duct 21 and downstream of the moisture absorption and dehumidification component 7 .

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

[0067] After the air passes through the second heat exchanger 32, the absolute humidity remains unchanged and the relative humidity decreases. Thus, the air enters the drum 1 again and can effectively remove moisture from the clothes.

[0068] After passing through the moisture absorption and dehumidification assembly 7, the first portion of air returns to the upstream portion of the moisture absorption and dehumidification assembly 7 via the secondary drying duct 22. Dehumidified by the moisture absorption and dehumidification assembly 7, the absolute humidity of the first portion of air is further reduced. 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 absolute humidity of the combined first and second portions of air is also lower than that of the second portion of air. This reduces both the absolute and relative humidity of the air entering the drum 1, improving the efficiency of moisture removal from the clothing within the drum 1.

[0069] See also Figure 1 and Figure 2 , and refer to Figure 11 As shown, the moisture absorption and dehumidification component 7 includes a moisture absorption part 711 and a desorption part 712. The moisture absorption part 711 is used to absorb water in the air and can heat the air. The advantages of this arrangement are: on the one hand, the moisture absorption part 711 can reduce the water vapor content in the air; on the other hand, in the process of adsorbing water in the moisture absorption part 711, the kinetic energy of water molecules is converted into internal energy, releasing heat. After the air passes through the moisture absorption part 711 of the moisture absorption and dehumidification component 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 air desorption from clothes.

[0070] In the embodiment of the present application, 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, low absolute humidity) air in the drum 1, and the dehumidification efficiency is significantly improved.

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

[0072] In some embodiments, as Figure 11 As shown, the moisture absorption and dehumidification component 7 includes a moisture absorption turntable 71, which includes the above-mentioned moisture absorption part 711 and desorption part 712. The moisture absorption turntable 71 is configured to be rotatably mounted in the shell, and is partially located in the main drying air duct 21 and partially located in the regeneration air duct 4. The moisture absorption part 711 and the desorption part 712 do not refer to two fixed parts on the moisture absorption turntable 71. The moisture absorption part 711 refers to the part of the moisture absorption and dehumidification component 7 that is located in the main drying air duct 21 at any time and absorbs water in the air. The process in which the moisture absorption part 711 is located outside the main drying air duct 21 after rotation and re-desorbs water molecules is the regeneration process of the moisture absorption part 711. Therefore, the desorption part 712 refers to the part of the moisture absorption turntable 71 that is desorbed and becomes dry after the water adsorbed thereon is re-desorbed. As the moisture absorption turntable 71 rotates, the moisture absorption part 711 and the desorption part 712 are constantly switched.

[0073] In some embodiments, the moisture absorption rotating disc 71 can be a honeycomb or corrugated rotating disc loaded with moisture absorption agents, capable of adsorbing and desorbing the absorbed water to realize repeated desorption regeneration. In some embodiments, the moisture absorption rotating disc 71 specifically includes inorganic / organic fiber carriers such as ceramic, glass fiber, MOFs (Metal-Organic Frameworks), COFs (Covalent-Organic Frameworks), cordierite, etc., and the fiber carriers are coated with moisture absorption agents, which are uniformly distributed between the fiber carriers and the surface of the fiber carriers to realize the adsorption of moisture. The moisture absorption agent can be, for example, zeolite, modified / synthetic zeolite, molecular sieve (including but not limited to single-crystal molecular sieve or mixed-crystal molecular sieve such as A-type molecular sieve, X / Y-type molecular sieve, ZSM molecular sieve, Beta molecular sieve, etc.), polymer moisture absorption agent, alkali metal aluminosilicate (13X molecular sieve), lithium chloride, silica gel, modified silica gel, activated alumina, etc.

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

[0075] Referring to Figure 10 As shown, the drying module 100 further includes a compressor 60 and a throttling device 64 arranged in the accommodating cavity of the shell, and the compressor 60, the condenser 63, the throttling device 64 and the first evaporator 61 are sequentially connected in the flow direction of the refrigerant.

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

[0077] The refrigerant includes hydrogen fluoride hydrocarbon (HFCs), chlorofluorocarbon (CFCs), hydrogen chloride fluorocarbon (HCFCs), or natural refrigerant (such as ammonia, carbon dioxide, hydrocarbon, etc.).

[0078] As shown in Figures 1 to 5 As shown, the drying module 100 further includes a regeneration air duct 4, and another part of the moisture absorption and removal assembly 7 is arranged in the regeneration air duct 4. That is, the two ends of the regeneration air duct 4 are respectively communicated with the desorption part 712, and the air in the regeneration air duct 4 can pass through the desorption part 712. The desorption part 712 performs desorption of water molecules in the regeneration air duct 4.

[0079] In one embodiment, referring to Figures 1 to 5As shown, the drying module 100 further comprises a fourth heat exchanger 37, which is arranged in the regeneration air duct 4 and upstream of the desorption section 712, and is used to heat the air in the regeneration air duct 4. The high-temperature air provides energy for the water molecules to desorb from the microporous structure when passing through the desorption section 712.

[0080] As shown in Figure 1 , Figure 2 and Figure 4 , the fourth heat exchanger 37 comprises an electric heating element 371. In other alternative embodiments, the fourth heat exchanger 37 can comprise another condenser (not shown).

[0081] As shown in Figure 5 , in one embodiment, the regeneration air duct 4 is an open air duct. The open air duct refers to that the regeneration air duct 4 is in communication with the space outside the housing. The air enters the regeneration air duct from the space outside the housing, is heated, and is discharged to the space outside the housing after passing through the desorption section 712.

[0082] As shown in Figure 1 and Figure 2 , in one embodiment, the drying module 100 further comprises a regeneration air blower 38, which is arranged at least partially in the regeneration air duct 4, and is used to provide power for the air to flow in the regeneration air duct 4.

[0083] In this embodiment, the regeneration air blower 38 is optionally arranged upstream of the fourth heat exchanger 37, as shown in Figure 5 . This can also avoid the adverse effects of high temperature on the regeneration air blower 38.

[0084] As shown in Figures 1 to 4 , Figure 6 , in one embodiment, the regeneration air duct 4 is a closed circulation air duct, and the drying module 100 further comprises a third heat exchanger 36, which is arranged in the regeneration air duct 4 and downstream of the desorption section 712, and is used to condense the water vapor in the air in the regeneration air duct 4. The closed circulation regeneration air duct 4 is more widely applicable, and avoids the external discharge of high-temperature energy, realizes internal circulation of energy, and reduces energy consumption.

[0085] In one embodiment, the regeneration air blower 38 is arranged downstream of the third heat exchanger 36 and upstream of the fourth heat exchanger 37. The purpose of this arrangement is that the temperature and the absolute humidity of the air after passing through the third heat exchanger 36 are low, and at this time, the regeneration air blower 38 is in a low-temperature and low-humidity (low absolute humidity) working environment, which is conducive to ensuring the service life of the regeneration air blower 38.

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

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

[0088] In one embodiment, if 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 by a tee (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 throttle tube, and the second throttling device 642 includes a second capillary throttle tube.

[0090] The refrigerant flowing out of the condenser 63 is in a high-pressure liquid state. After throttling, the pressure is reduced, allowing the refrigerant to evaporate at a lower pressure. The length and inner diameter of the first and second capillary ducts determine the resistance to the refrigerant's passage, which in turn determines the amount of refrigerant entering the first and second evaporators 61, 62, and thus the cooling temperature of the first and second evaporators 61, 62.

[0091] In one optional embodiment, the inner diameters of the first capillary duct and the second capillary duct are different, and / or the lengths of the first capillary duct and the second capillary duct are different. Based on the different cooling requirements of the first evaporator 61 and the second evaporator 62, the capillary ducts with different inner diameters and / or lengths determine the cooling temperatures of the first evaporator 61 and the second evaporator 62.

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

[0093] Please refer to 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 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 of the second electronic expansion valve.

[0094] In an 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 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, based on the external environment, internal environment or specific needs, the first throttling device 641 and the second throttling device 642 can be controlled to adjust the cooling temperature of the first evaporator 61 and the second evaporator 62 accordingly.

[0096] For example, when the external environment is low, and when the clothing processing device 200 is initially operated, the air temperature in the drum 1 is low and the relative humidity is high, and the air has a low ability to desorb moisture from the clothing when passing through the drum 1. At this time, the control system 9 can be used to increase the opening of the first electronic expansion valve and increase the amount of refrigerant flowing into the first evaporator 61. More refrigerant enters the first evaporator 61, absorbs heat and vaporizes in the first evaporator 61. As the refrigerant flow rate increases, the pressure in the first evaporator 61 will increase. According to the pressure-temperature characteristics of the refrigerant, the evaporation temperature of the refrigerant in the first evaporator 61 increases. In this way, the cooling temperature of the first evaporator 61 can be increased, and the temperature of the air entering the drum 1 can be increased. In this way, the air in the drum 1 is quickly heated up, and the dehumidification efficiency is also improved.

[0097] As the clothes processing device 200 operates, the air temperature in the drum 1 gradually rises. When the temperature in the drum 1 is high, the opening of the first electronic expansion valve can be reduced by the control system 9, thereby reducing the amount of refrigerant flowing into the first evaporator 61. Less refrigerant enters the first evaporator 61, absorbs heat and vaporizes in the first evaporator 61. As the refrigerant flow rate decreases, the pressure in the first evaporator 61 will decrease. According to the pressure-temperature characteristics of the refrigerant, the evaporation temperature of the refrigerant in the first evaporator 61 decreases. In this way, the evaporation temperature of the first evaporator 61 can be lowered, the air in the main drying air duct 21 can be efficiently condensed, and the dehumidification efficiency can be improved.

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

[0099] Similarly, when the ambient temperature is low, and / or, when the laundry treating apparatus 200 is initially operated, the air upstream of the desorption section 712 in the regenerative air duct 4 has a low temperature and a high relative humidity, and the air has a low desorption capacity for the water molecules on the desorption section 712. At this time, the opening of the second electronic expansion valve can be increased by the control system 9 to increase the pressure in the second evaporator 62, to increase the refrigeration temperature of the second evaporator 62, and to increase the temperature of the air passing through the desorption section 712. In this way, the air upstream of the desorption section 712 in the regenerative air duct 4 is rapidly warmed, and the desorption efficiency is also improved.

[0100] As the laundry treating apparatus 200 is operated, the temperature of the air upstream of the desorption section 712 in the regenerative air duct 4 gradually increases. When the temperature upstream of the desorption section 712 in the regenerative air duct 4 is high, 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, to reduce the refrigeration temperature of the second evaporator 62, and to efficiently condense the air downstream of the desorption section 712 and improve the dehumidification efficiency.

[0101] Conversely, when the ambient temperature is high, the air in the drum 1 upstream of the desorption section 712 in the regenerative air duct 4 already has a certain temperature, and the air has a 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, to reduce the refrigeration temperature of the second evaporator 62, and 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. Alternatively, 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 adjust at least one of the first electronic expansion valve and the second electronic expansion valve again at at least one preset time after the drum 1 is operated.

[0103] In one embodiment, the control system 9 is configured to control the first electronic expansion valve according to the temperature in the drum 1 and / or the ambient temperature. Alternatively, the control system 9 is configured to control the first electronic expansion valve when the temperature in 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 in the regeneration air duct 4 and upstream of the desorption unit 712 and / or the ambient temperature. Alternatively, the control system 9 is configured to control the second electronic expansion valve when the temperature in the regeneration air duct 4 and upstream of the desorption unit 712 and / or the ambient temperature reaches one or more second preset temperature values.

[0105] In addition, in one embodiment, the control system 9 can jointly control the first electronic expansion valve and the second electronic expansion valve based on 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.

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

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

[0108] See also Figure 8 The control system 9 is connected to the drum 1 , the compressor 60 , and the first driving member 72 to control the rotation of the drum 1 , the operation of the compressor 60 , and the operation of the first driving member 72 .

[0109] In an optional embodiment, the control system 9 is further configured to control the rotation speed of the moisture absorption turntable 71 by controlling the first driving member 72. The purpose of this arrangement is to ensure that the main drying air duct 21 and the regeneration air duct 4 are two air ducts with independent functions and operations. However, based on the rotation of the moisture absorption turntable 71, when the desorption section 712 is transferred from the regeneration air duct 4 to the main drying air duct 21, a portion of the high-temperature air in the microporous structure of the desorption section 712 will be simultaneously transferred to the main drying air duct 21 and flow within the main drying air duct 21, thereby increasing the temperature of the air entering the drum 1 downstream of the moisture absorption section 711.

[0110] In one embodiment, when the ambient temperature is low, the temperature inside the drum 1 is low, or when the clothing processing device 200 is initially operated, the control system 9 is used to control the moisture absorption turntable 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 clothing processing device 200 is running, or when the temperature inside the drum 1 is high, or when the ambient temperature is high, the control system 9 is used to reduce the rotation speed of the moisture absorption turntable 71.

[0111] For one example, see Figure 1 and Figure 2 As shown, the drying module 100 also includes a main circulation fan 33, which is at least partially arranged in the main drying air duct 21, for providing flow power for the air in the main drying air duct 21, and keeping the air passing through the drying module 100 and the drum 1 at a sufficient and stable speed.

[0112] The position of the drum 1 in the main drying air duct 21 can be arranged according to specific design requirements and the spatial adaptability of the housing. For example, the main circulation fan 33 can be arranged 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 component 7, or between the moisture absorption and dehumidification component 7 and the second heat exchanger 32, or as shown in FIG. Figure 1 and Figure 2 Figure 3 As shown, it can be arranged 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, and the multiple fans may be set at one of the above-mentioned multiple positions at the same time, or may be set at multiple of the above-mentioned positions.

[0114] See also Figure 4 and Figure 5 As shown, in one embodiment, the drying module 100 further includes a secondary circulation fan 35, which is arranged 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 arranged 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 an optional embodiment, the one-way valve 82 and the secondary circulation fan 35 can be used in combination, such as Figure 4 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 the air pressure difference.

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

[0118] In an optional embodiment, the control system 9 is further used to control the rotating speed of at least one of the main circulating fan 33, the secondary circulating fan 35 and the regenerative fan 38, so as to correspondingly adjust the flow speed of the air in the main drying air duct 21 and the regenerative air duct 4. The purpose of such arrangement is to realize the adjustment of the flow speed of the air in the main drying air duct 21, the secondary drying air duct 22 and the regenerative air duct 4 according to the external environment or the internal environment or specific requirements, etc.

[0119] Next, please refer to Figure 1 and Figure 2 It is shown that, in the drying module 100, the secondary drying air duct 22 is configured to be openably and closably communicated with the main drying air duct 21. As shown in Figure 1 , the secondary drying air duct 22 is communicated with the main drying air duct 21, as shown in Figure 2 , the secondary drying air duct 22 is communicated with the main drying air duct 21.

[0120] As shown in Figure 1 , Figure 3 , Figure 4 and Figure 5 , the switch assembly 81 is in the open state, at this time, the secondary drying air duct 22 is in the communicated state with the main drying air duct 21, allowing the first part of the air to be secondary dehumidified. As shown in Figure 2 , the switch assembly 81 is in the closed state, at this time, the secondary drying air duct 22 is disconnected with the main drying air duct 21, and all the air unidirectionally flows to the second heat exchanger 32 through the dehumidification and moisture removal assembly 7.

[0121] The purpose of such arrangement is to allow the secondary drying air duct 22 to be selectively connected according to the external environment or the internal environment or specific requirements, etc.

[0122] For example, in the early stage of the running phase of the laundry treating apparatus 200, the moisture content of the laundry is relatively high, or when the external environment is relatively low, or when the temperature in the drum 1 is relatively low, the absolute humidity of the air flowing out of the drum 1 is relatively large, and after passing through the moisture absorption and exhaust assembly 7, the absolute humidity is reduced, but is still relatively large. At this time, the secondary drying air duct 22 can be connected to the main drying air duct 21 by the switching assembly 81 to reduce the absolute humidity of the air entering the drum 1, improve the water desorption efficiency, and save energy consumption. In the later stage of the running phase of the laundry treating apparatus 200, the moisture content of the laundry is already relatively low, or when the external environment is relatively high, or when the temperature in the drum 1 is relatively high, the absolute humidity of the air flowing out of the drum 1 is relatively small, and after passing through the moisture absorption and exhaust assembly 7, the absolute humidity is reduced, but the reduction is relatively limited. At this time, the secondary drying air duct 22 can be disconnected from the main drying air duct 21 by the switching assembly 81, so that the air directly enters the drum 1, which is beneficial to reduce the air flow resistance in the main drying air duct 21.

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

[0124] In an optional example, the switching assembly 81 is configured to switch between a first position and at least one second position; in the first position, the switching assembly 81 closes the secondary drying air duct 22, and in the second position, the switching assembly 81 opens the secondary drying air duct 22, and in different second positions, the switching 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 Figure 1 , Figure 2 and Figure 8 , in an embodiment, the switching assembly 81 includes a second driving member 811 and a moving member 812, the moving member 812 is arranged in the secondary drying air duct 22 (it can be understood that it is arranged at the connection between the secondary drying air duct 22 and the main drying air duct 21), and 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, and in the second position, the moving member 812 opens the secondary drying air duct 22, and 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 movable 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 movable 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 movable member 812 to move in other ways.

[0127] For example, in the early stage of the operation of the clothing processing device 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 duct 22 for secondary dehumidification through the moving part 812.

[0128] On the contrary, in the later stage of the operation of the clothing processing device 200, or when the external environment is high, or when the temperature inside the drum 1 is high, less air can be controlled by the movable part 812 to enter the secondary drying duct 22 for secondary dehumidification.

[0129] The control system 9 is connected to the second driving member 811 and is used to control the movement of the second driving member 811 to control the switching of the moving member 812 between the first position and the second position.

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

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

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

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

[0134] See also Figure 8 As shown, in one embodiment, the laundry processing apparatus 200 further includes a third driving member 13, which is used to drive the drum 1 to rotate. The compressor 60 and the third driving member 13 are both disposed in the accommodating cavity.

[0135] In one embodiment, the drying module 100 may include a base (not shown), and the housing may include a plurality of side panels (not shown) interconnected and enclosing the base. The base is located on the underside of the drum 1. The primary drying duct 21, the secondary drying duct 22, and the regeneration duct 4 are disposed on the base. At least a portion of the accommodating cavity may be disposed on the base, outside the primary drying duct 21, the secondary drying duct 22, and the regeneration duct 4.

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

[0137] Specifically, if Figure 7 As shown, the heat exchanger is the 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 passes through the first evaporator 61 twice for double dehumidification, which helps reduce its absolute humidity. This reduces the relative humidity and absolute humidity of the air entering the drum 1, thereby improving drying efficiency.

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

Claims

1. A drying module, characterized in that: include: The base is provided with a main drying air duct and a secondary drying air duct; it also includes one or two heat exchangers arranged in the main drying air duct; the two ends of the secondary drying air duct are respectively arranged on the main drying air duct on both sides of one or two heat exchangers.

2. The drying module according to claim 1, wherein: The drying module includes a heat exchanger, which is a first heat exchanger or a moisture absorption and dehumidification component.

3. The drying module according to claim 1, wherein: The drying module includes two heat exchangers, which are respectively a first heat exchanger and a moisture absorption and dehumidification component arranged along the wind direction; 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 dehumidification component, or on both sides of the first heat exchanger and the moisture absorption and dehumidification component away from each other.

4. The drying module according to claim 2 or 3, characterized in that: The secondary drying air duct is configured to be openably and closably connected to the main drying air duct.

5. The drying module according to claim 4, characterized in that: The drying module includes a switch component for controlling the opening and closing of the secondary drying air duct and the main drying air duct; The switch assembly is configured to switch between a first position and at least one second position; in the first position, the switch assembly closes the secondary drying air duct, and in different second positions, the switch assembly opens the secondary drying air duct in different proportions.

6. The drying module according to claim 3, characterized in that: The first heat exchanger includes a first evaporator; the moisture absorption and dehumidification component includes a moisture absorption part and a desorption part, and the moisture absorption part is at least used to absorb water in the circulating medium in the main drying air duct.

7. The drying module according to claim 6, characterized in that: The drying module further includes a fourth heat exchanger and a regeneration air duct. The desorption portion is disposed in the regeneration air duct. The fourth heat exchanger is disposed in the regeneration air duct and is located upstream of the desorption portion.

8. The drying module according to claim 7, wherein: The regeneration air duct is a closed circulation air duct, and the drying module further includes a third heat exchanger located downstream of the desorption part and upstream of the fourth heat exchanger.

9. The drying module according to claim 8, characterized in that: The drying module further includes a second heat exchanger, which is disposed in the main drying air duct and downstream of the secondary drying air duct.

10. The drying module according to 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 also includes a compressor and a throttling device; the compressor, the condenser, the throttling device, the second evaporator, and the first evaporator are connected in sequence along the refrigerant flow direction.

11. The drying module according to claim 9, wherein: It also includes a regeneration fan and a main circulation fan, the regeneration fan is arranged in the regeneration air duct and upstream of the fourth heat exchanger, and the main circulation fan is arranged in the main drying air duct; and / or The drying module further includes a secondary circulation fan, which is arranged in the secondary drying air duct, and / or the drying module further includes a one-way valve, which is arranged in the secondary drying air duct.

12. The drying module according to claim 3, wherein: It also includes a first driving member and a control system. The first driving member is used to drive the moisture absorption and dehumidification component to rotate; the control system is used to control the rotation speed of the moisture absorption and dehumidification component through the first driving member.

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

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