Adjustable laundry drying system, control method and drying apparatus

Abstract

The application discloses an adjustable clothes drying system, which comprises a compressor, a condenser and an evaporator connected in sequence, a first reversing valve is arranged between the condenser and the evaporator, a first gas outlet valve port of the first reversing valve is directly communicated with the compressor through a first passage, a second gas outlet valve port of the first reversing valve is communicated with the compressor through a second passage, the evaporator is arranged on the second passage, and the first reversing valve can control the refrigerant in the adjustable clothes drying system to flow in one of the first passage and the second passage; the application further discloses a control method of the system and drying equipment applying the system and the method. The refrigerant flow path in the compressor system is adjusted by controlling the reversing valve, the refrigerant does not flow through the evaporator in the initial state of the machine starting, the temperature in the system can be rapidly increased, the reversing valve is actuated when the temperature of the machine reaches a certain degree, the main drying stage is entered, and the overall operation time is shortened.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically, to an adjustable clothes drying system, a control method for adjusting the adjustable clothes drying system, and an adjustable clothes drying device. Background Technology

[0002] With the development of technology, dryers are becoming increasingly popular. They not only dry wet clothes quickly but also disinfect and sterilize them. This is especially helpful in rainy weather when clothes are difficult to dry. Dryers effectively solve this problem, maintaining a temperature of around 70 degrees Celsius during operation, and the added disinfection and sterilization process ensures that clothes dried in a dryer are cleaner than those dried by air. Using a dryer can also remove lint and stains, restoring clothes to their original softness. Many dryers also have built-in wrinkle-removing functions, making life more efficient and convenient.

[0003] The working principle of heat pump dryers in the existing technology is that circulating air is heated by the condenser to produce dry hot air. The hot air is blown into the drying drum. The dry hot air passes through the wet clothes, takes away the moisture, and becomes warm and humid air. The warm and humid air enters the evaporator, is cooled and releases moisture, and becomes dry cold air. The dry cold air enters the condenser, is heated into dry hot air again, and enters the drying drum again. This cycle is repeated to dry the clothes.

[0004] Patent application number 201821058250.0 discloses a clothes drying system and clothes processing equipment. The clothes drying system includes a drying chamber, a drying channel, a fan, and a compressor, a condenser assembly, an expansion valve, and an evaporator connected in sequence. The drying channel is connected to the drying chamber at both ends, and the fan, condenser assembly, and evaporator are all located within the drying channel. The condenser assembly includes multiple condensers, one of which can individually heat air to dry clothes; and multiple condensers can simultaneously heat air to dry clothes. Therefore, a dryer with this clothes drying system can selectively activate one or more condensers depending on the amount of clothes to be dried, improving energy efficiency.

[0005] The clothing drying system and clothing processing equipment disclosed in the above application are based on controlling one or more condensers to optimize energy utilization. However, neither the existing technology nor the above-disclosed technical solutions have solved the problem of slow condenser heating speed in the initial stage of the equipment. Therefore, the overall time required for drying clothes needs to be optimized.

[0006] In view of this, the present invention is hereby proposed. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an adjustable clothes drying system, a control method for adjusting the adjustable clothes drying system, and an adjustable clothes drying device. By controlling the reversing valve, the flow direction of refrigerant in the compressor system is adjusted. In the initial state of machine startup, the refrigerant does not flow through the evaporator, which can make the temperature in the system rise rapidly. After the machine temperature rises to a certain level, the reversing valve is activated, allowing the refrigerant to flow through the evaporator, the evaporator temperature drops, the humid air is condensed, and the overall running time is shortened.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0009] An adjustable clothes drying system includes a compressor, a condenser, and an evaporator connected in sequence. A first reversing valve is provided between the condenser and the evaporator. The first reversing valve includes a first outlet valve and a second outlet valve.

[0010] The first outlet valve is directly connected to the compressor through a first passage, and the second outlet valve is connected to the compressor through a second passage. The evaporator is located on the second passage. The first reversing valve can control the refrigerant in the adjustable clothes drying system to flow through either the first passage or the second passage.

[0011] Furthermore, a second reversing valve is provided between the evaporator and the compressor, with the first passage and the second passage respectively connected between the first reversing valve and the second reversing valve.

[0012] The second reversing valve includes a first inlet valve port and a second inlet valve port. The outlet end of the first passage is connected to the first inlet valve port, and the outlet end of the second passage is connected to the second inlet valve port. By controlling the first reversing valve and the second reversing valve, the refrigerant can be directly returned to the compressor through the first passage, or returned to the compressor through the evaporator via the second passage.

[0013] Furthermore, the compressor includes an outlet, an outlet pipe, a return port, and a return pipe. The outlet is connected to the first reversing valve via the outlet pipe. The condenser is mounted on the outlet pipe. The return port is connected to the second reversing valve via the return pipe. The refrigerant in the first passage returns directly to the compressor via the return pipe, and the refrigerant in the second passage returns to the compressor via the evaporator and the return pipe.

[0014] Furthermore, the outlet pipe also includes a drying pipe and a capillary pipe connected in sequence between the condenser and the first reversing valve.

[0015] Another object of the present invention is to provide a control method for the above-mentioned adjustable clothes drying system, comprising:

[0016] The system is started and a preheating procedure is initiated: the first reversing valve is controlled to open the first passage and close the second passage, thus entering the rapid preheating stage.

[0017] Once the set preheating temperature or set preheating time is reached, the preheating program ends and the drying program is executed: the first reversing valve is controlled to open the second passage and close the first passage, entering the main drying stage.

[0018] Furthermore, the system is controlled to start and begin the preheating procedure: the first and second directional valves are controlled to jointly open the first passage and completely close the second passage, entering the rapid preheating stage.

[0019] Once the set preheating temperature or set preheating time is reached, the preheating program ends and the drying program is executed: the first reversing valve and the second reversing valve are controlled to jointly open the second passage and completely close the first passage, thus entering the main drying stage.

[0020] A third objective of this invention is to provide an adjustable clothes drying device, the device comprising the aforementioned adjustable clothes drying system and the aforementioned control method for controlling the flow path of the refrigerant.

[0021] Furthermore, the adjustable clothes drying equipment also includes a drying chamber disposed between the condenser and the evaporator.

[0022] Furthermore, the adjustable clothes drying equipment also includes a filter device disposed between the drying chamber and the evaporator.

[0023] Preferably, the filtration device includes a primary filtration device and a secondary filtration device. The primary filtration device includes a primary air inlet and a primary air outlet, and the secondary filtration device includes a secondary air inlet and a secondary air outlet. The secondary air inlet is connected to the primary air outlet.

[0024] Furthermore, the adjustable clothes drying equipment also includes a base device, a protective cover, and a fan. The base device is located on the outer periphery of the drying chamber, and the evaporator, condenser, and compressor are mounted on the base device.

[0025] The protective cover is installed on the evaporator and condenser; the fan is located between the condenser and the drying chamber, and pushes the gas heated by the condenser into the drying chamber according to the set flow path.

[0026] Preferably, the adjustable clothes drying equipment is a dryer or a washer-dryer combo.

[0027] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0028] 1. This invention provides an adjustable clothes drying system and equipment. By controlling the reversing valve, the flow direction of refrigerant in the compressor system is adjusted. In the initial state of the machine, the refrigerant does not flow through the evaporator, which can make the temperature in the system rise rapidly. After the machine temperature rises to a certain level, the reversing valve is activated, the refrigerant flows through the evaporator, the evaporator temperature drops, the humid air is condensed, and the overall running time is shortened.

[0029] 2. By setting up two reversing valves to form two refrigerant paths, the overall drying time is shortened while saving energy; the equipment is equipped with a filter device, which not only makes the clothes cleaner and tidier, but also keeps the inside of the equipment clean, reducing the occurrence of malfunctions. The filter device can be cleaned regularly to maintain its filtering function; the system has a base platform, which not only houses the condenser and other devices, but also provides a fixing function; the cover plate not only provides protection, but also seals and isolates, allowing the condenser and evaporator to operate independently and normally; the fan can drive the refrigerant to circulate rapidly, improving the drying efficiency of clothes.

[0030] 3. This type of clothing drying system has a wide range of applications and can be used in dryers or washer-dryer combos.

[0031] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0032] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0033] Figure 1 This is a schematic diagram of the working process of the adjustable clothes drying system in this embodiment of the invention. Figure 1 ;

[0034] Figure 2 This is a schematic diagram of the working process of the adjustable clothes drying system in this embodiment of the invention. Figure 2 ;

[0035] Figure 3 This is a schematic flowchart of the control method for regulating the adjustable clothes drying system in an embodiment of the present invention. Figure 1 ;

[0036] Figure 4 This is a schematic diagram of the working process of the adjustable clothes drying system in this embodiment of the invention. Figure 3 ;

[0037] Figure 5 This is a schematic diagram of the working process of the adjustable clothes drying system in this embodiment of the invention. Figure 4 ;

[0038] Figure 6 This is a schematic flowchart of the control method for regulating the adjustable clothes drying system in an embodiment of the present invention. Figure 2 ;

[0039] Figure 7 This is the base platform structure in the embodiment of the present invention. Figure 1 ;

[0040] Figure 8 This is the base platform structure in the embodiment of the present invention. Figure 2 ;

[0041] Figure 9 This is a schematic diagram of the working process of the adjustable clothes drying device in this embodiment of the invention. Figure 1 ;

[0042] Figure 10 This is a schematic diagram of the working process of the adjustable clothes drying device in this embodiment of the invention. Figure 2 ;

[0043] Figure 11 This is a schematic diagram of the principle of each module in the adjustable clothes drying device in this embodiment of the invention;

[0044] In the picture:

[0045] 1. First reversing valve; 2. Second reversing valve; 3. First passage; 4. Second passage; 5. Outlet pipe; 6. Return pipe; 7. Compressor; 8. Base plate assembly; 9. Protective cover plate; 10. Condenser; 11. Evaporator.

[0046] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0048] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] The present invention will be further described in detail below with reference to the embodiments.

[0051] like Figures 1 to 2 As shown, an adjustable clothes drying system includes a compressor 7, a condenser 10, and an evaporator 11 connected in sequence. A first reversing valve 1 is provided between the condenser 10 and the evaporator 11. The first reversing valve 1 includes a first outlet valve and a second outlet valve. The first outlet valve is directly connected to the compressor 7 through a first passage 3, and the second outlet valve is connected to the compressor 7 through a second passage 4. The evaporator 11 is disposed on the second passage 4. The first reversing valve 1 can control the refrigerant in the adjustable clothes drying system to flow selectively from the first passage 3 path and the second passage 4 path.

[0052] like Figure 3 As shown, the control method for the adjustable clothes drying system includes: S10: controlling the system to start and begin the preheating program: controlling the first reversing valve 1 to open the first passage 3 and close the second passage 4, entering the rapid preheating stage; S20: when the set preheating temperature or set preheating time is reached, ending the preheating program and executing the drying program: controlling the first reversing valve 1 to open the second passage 4 and close the first passage 3, entering the main drying stage.

[0053] Specifically, Figure 1 When there is only one reversing valve in the system, and it is placed between the condenser 10 and the evaporator 11, when the first reversing valve 1 is adjusted to the left, that is, when the first outlet valve port is directly connected to the compressor 7, the first passage 3 is unobstructed, and the system is preheated or heated. Figure 2When there is only one reversing valve in the system, and it is placed between the condenser 10 and the evaporator 11, when the first reversing valve 1 is adjusted to the right, that is, when the second outlet valve is connected to the compressor 7 through the evaporator 11, the second passage 4 is unobstructed, the system enters the main drying stage, and the drying program ends after the clothes are dried.

[0054] In the initial state of the machine, adjusting the reversing valve to prevent or partially allow the refrigerant to flow through the evaporator 11 can rapidly raise the temperature within the system. Once the machine temperature reaches a certain level or after a certain period of time, the reversing valve activates, allowing the refrigerant to flow through the evaporator 11. This causes the temperature of the evaporator 11 to decrease, condensing the humid air and shortening the overall operating time.

[0055] Furthermore, such as Figure 4 and 5 As shown, a second reversing valve 2 is also provided between the evaporator 11 and the compressor 7. The first passage 3 and the second passage 4 are respectively connected between the first reversing valve 1 and the second reversing valve 2. The second reversing valve 2 includes a first inlet valve port and a second inlet valve port. The outlet end of the first passage 3 is connected to the first inlet valve port, and the outlet end of the second passage 4 is connected to the second inlet valve port. By controlling the first reversing valve 1 and the second reversing valve 2, the refrigerant can be directly returned to the compressor 7 through the first passage 3, or returned to the compressor 7 through the evaporator 11 via the second passage 4.

[0056] like Figure 6 As shown, the control method for the adjustable clothes drying system includes S101: controlling the system to start and begin the preheating program: controlling the first reversing valve 1 and the second reversing valve 2 to jointly open the first passage 3 and completely close the second passage 4, entering the rapid preheating stage; S201: when the set preheating temperature or the set preheating time is reached, ending the preheating program and executing the drying program: controlling the first reversing valve 1 and the second reversing valve 2 to jointly open the second passage 4 and completely close the first passage 3, entering the main drying stage.

[0057] Specifically, Figure 4 When two reversing valves are set in the system, when both the first reversing valve 1 and the second reversing valve 2 are adjusted to the left, that is, when the first outlet valve port and the first inlet valve port are directly connected to the compressor 7, the first passage 3 is unobstructed, and the system is preheated or heated. Figure 5 When two reversing valves are set in the system, when both the first reversing valve 1 and the second reversing valve 2 are adjusted to the right, that is, when the second outlet valve port and the second inlet valve port are connected to the compressor 7 through the evaporator 11, the second passage 4 is unobstructed, the system enters the main drying stage, and the drying program ends after the clothes are dried.

[0058] Furthermore, the outlet pipe 5 also includes a drying pipe and a capillary pipe connected in sequence between the condenser 10 and the first reversing valve 1.

[0059] It should be understood that while a single reversing valve in this system can increase the heating rate to a certain extent in the initial stage, thereby shortening the overall drying time and saving energy, some heat (refrigerant) will still enter the second channel and evaporator 11 in the initial stage of preheating or heating, thus preventing the heating rate from reaching the optimal level. When two reversing valves are set, it is possible to ensure that when one passage is open, the other passage is completely closed, thereby enabling rapid heating in the initial stage of drying clothes, saving energy, further shortening the drying time, and improving drying efficiency.

[0060] Furthermore, such as Figure 7 and Figure 8 As shown, the compressor 7 includes an outlet, an outlet pipe 5, a return port, and a return pipe 6. The outlet is connected to the first reversing valve 1 via the outlet pipe 5. The condenser 10 is installed on the outlet pipe 5. The return port is connected to the second reversing valve 2 via the return pipe 6. The refrigerant in the first passage 3 returns directly to the compressor 7 via the return pipe 6. The refrigerant in the second passage 4 returns to the compressor 7 via the evaporator 11 and the return pipe 6.

[0061] like Figure 9 and Figure 10 As shown, an adjustable clothes drying device includes the adjustable clothes drying system described above. The adjustable clothes drying device can be a dryer or a washer-dryer combo.

[0062] The adjustable clothes drying equipment also includes a drying chamber disposed between the condenser 10 and the evaporator 11 for placing clothes to be dried. The adjustable clothes drying equipment also includes a filter device disposed between the drying chamber and the evaporator 11 for filtering lint from the clothes.

[0063] Preferably, the filtration device includes a primary filtration device and a secondary filtration device. The primary filtration device includes a primary air inlet and a primary air outlet, and the secondary filtration device includes a secondary air inlet and a secondary air outlet. The secondary air inlet is connected to the primary air outlet. The air flowing out from the secondary air outlet passes through the evaporator 11 and the condenser 10 in sequence, and then continuously circulates in the air duct until the clothes are dried.

[0064] Furthermore, the adjustable clothes drying equipment also includes a base device 8, a protective cover 9, and a fan. The base device 8 is located on the outer periphery of the drying chamber, and the evaporator 11, condenser 10, and compressor 7 are mounted on the base device 8.

[0065] The protective cover 9 is placed over the evaporator 11 and the condenser 10; the fan is located between the condenser 10 and the drying chamber, and pushes the air heated by the condenser 10 into the drying chamber according to the set flow path.

[0066] It should be understood that the airflow drying cycle formed by the adjustable clothes drying equipment and the adjustable clothes drying system (mainly manifested as a heat pump system) are two separate circulation systems. Since this technical principle is a conventional technical means in the field and is known to those skilled in the art, it will not be described in detail or further limited.

[0067] Example 1

[0068] like Figures 1 to 3 and Figure 9 As shown, the device described in this embodiment is a drum dryer, which uses the above-mentioned adjustable clothes drying system and control method. It should be understood that the adjustable clothes drying system in this drum dryer only uses one reversing valve, namely the first reversing valve 1.

[0069] The adjustable clothes drying system includes a compressor (or heat pump) 7, a condenser 10, a drying tube, and a capillary tube connected in sequence. Figure 1 and Figure 2 (Drying tube and capillary tube not labeled) and evaporator 11, a first reversing valve 1 is provided between the capillary tube and the evaporator 11, the first reversing valve 1 includes a first outlet valve port and a second outlet valve port; the first outlet valve port is directly connected to the compressor 7 through a first passage 3, and the second outlet valve port is connected to the compressor 7 through a second passage 4, the evaporator 11 is arranged on the second passage 4, the first reversing valve 1 can control the refrigerant in the adjustable clothes drying system to flow from either the first passage 3 path or the second passage 4 path.

[0070] Furthermore, the compressor 7 includes an outlet, an outlet pipe 5, a return port, and a return pipe 6. The first passage 3 and the second passage 4 are respectively connected between the first reversing valve 1 and the return pipe 6. The outlet end of the first passage 3 is connected to the return pipe 6, and the outlet end of the second passage 4 is connected to the return pipe 6. By controlling the first reversing valve 1, the refrigerant can be directly returned to the compressor 7 via the first passage 3, or returned to the compressor 7 via the second passage 4 through the evaporator 11. The first reversing valve 1 can be a solenoid valve.

[0071] Furthermore, the outlet is connected to the first reversing valve 1 via an outlet pipe 5, the condenser 10 is mounted on the outlet pipe 5, and the return port is connected to the first reversing valve 1 via a return pipe 6. In this case, the first reversing valve 1 can be understood as including a first passage 3 and a second passage 4. The refrigerant in the first passage 3 returns directly to the compressor 7 via the return pipe 6, and the refrigerant in the second passage 4 returns to the compressor 7 via the evaporator 11 and the return pipe 6. The outlet pipe 5 also includes a drying pipe and a capillary tube connected sequentially between the condenser 10 and the first reversing valve 1. The capillary tube is a commonly used throttling device, simple in structure and inexpensive. The throttling device mainly controls the cooling capacity required by the evaporator 11 by controlling the pressure of the refrigerant flowing within the device. The capillary tube is generally a section of copper tubing with a relatively small inner diameter.

[0072] like Figure 3 As shown, the control method for the adjustable clothes drying system includes: S10: controlling the system to start and begin the preheating program: controlling the first reversing valve 1 to open the first passage 3 and close the second passage 4, entering the rapid preheating stage; S20: when the set preheating temperature or set preheating time is reached, ending the preheating program and executing the drying program: controlling the first reversing valve 1 to open the second passage 4 and close the first passage 3, entering the main drying stage.

[0073] Specifically, in the initial working state of the dryer, the compressor 7 or heat pump starts, driving the refrigerant flow in the system. The reversing valve actuates, switching the refrigerant flow direction so that the refrigerant flows from the compressor 7 or heat pump to the outlet pipe 5, then to the condenser 10, then to the first reversing valve 1, and finally to the return pipe 6. The refrigerant returns to the compressor 7 through the return pipe 6, and does not flow through the evaporator 11, which allows the system temperature to rise rapidly. After the system temperature rises to a certain level, the reversing valve actuates again, switching the refrigerant flow direction to the compressor 7 or heat pump to the outlet pipe 5, then to the condenser 10, then to the first reversing valve 1, then to the evaporator 11, and finally to the return pipe 6. The refrigerant returns to the compressor 7 through the return pipe 6. At this time, the evaporator 11 is at a lower temperature, which allows the hot, humid air to quickly condense into water droplets, achieving the purpose of drying clothes and effectively shortening the dryer's running time.

[0074] This tumble dryer includes not only the adjustable clothes drying system, but also an air duct drying circulation system for directly drying clothes, such as... Figure 9 As shown, the system includes a drying chamber, a filtration device, an evaporator, a condenser, and a fan, connected sequentially from end to end. The drying chamber is used to hold clothes to be dried. Preferably, the filtration device includes a primary filtration device and a secondary filtration device. The primary filtration device includes a primary air inlet and a primary air outlet, and the secondary filtration device includes a secondary air inlet and a secondary air outlet, with the secondary air inlet connected to the primary air outlet. This is used to remove lint or debris from the clothes or air duct.

[0075] Furthermore, such as Figure 7 and 8 As shown, the drum dryer also includes a base assembly 8, a protective cover 9, and a fan. The base assembly 8 is located on the outer periphery of the drying chamber, and the evaporator 11, condenser 10, and compressor 7 are mounted on the base assembly 8. The protective cover 9 covers the evaporator 11 and condenser 10; the fan is located between the condenser 10 and the drying chamber, pushing the gas heated by the condenser 10 into the drying chamber according to a set flow path.

[0076] Example 2

[0077] like Figures 4 to 6 and Figure 10 As shown, the device described in this embodiment is a drum-type washer-dryer combo machine, which utilizes the aforementioned adjustable clothes drying system. This system includes a compressor 7, a condenser 10, a drying tube, and a capillary tube connected sequentially from end to end. Figure 1 and Figure 2 The evaporator 11 (not labeled) is connected to the drying tube 7 and the capillary tube 7. A first reversing valve 1 is provided between the capillary tube and the evaporator 11. The first reversing valve 1 includes a first outlet valve and a second outlet valve. The first outlet valve is directly connected to the compressor 7 through a first passage 3, and the second outlet valve is connected to the compressor 7 through a second passage 4. The evaporator 11 is located on the second passage 4. The first reversing valve 1 can control the refrigerant in the adjustable clothes drying system to flow through either the first passage 3 or the second passage 4. It should be understood that the adjustable clothes drying system in this tumble dryer uses two reversing valves.

[0078] Furthermore, a second reversing valve 2 is provided between the evaporator 11 and the compressor 7. The first passage 3 and the second passage 4 are respectively connected between the first reversing valve 1 and the second reversing valve 2. The second reversing valve 2 includes a first inlet valve and a second inlet valve. The outlet end of the first passage 3 is connected to the first inlet valve, and the outlet end of the second passage 4 is connected to the second inlet valve. By controlling the first outlet valve and the second outlet valve in the first reversing valve 1, and the first inlet valve and the second inlet valve in the second reversing valve 2, the refrigerant can be directly returned to the compressor 7 through the first passage 3, or returned to the compressor 7 through the evaporator 11 via the second passage 4. The first reversing valve 1 and the second reversing valve 2 can be solenoid valves.

[0079] Furthermore, the compressor 7 includes an outlet, an outlet pipe 5, a return port, and a return pipe 6. The outlet is connected to the first reversing valve 1 via the outlet pipe 5. The condenser 10 is disposed on the outlet pipe 5. The return port is connected to the second reversing valve 2 via the return pipe 6. The refrigerant in the first passage 3 returns directly to the compressor 7 via the return pipe 6. The refrigerant in the second passage 4 returns to the compressor 7 via the evaporator 11 and the return pipe 6.

[0080] Furthermore, the outlet pipe 5 also includes a drying pipe and a capillary tube connected in sequence between the condenser 10 and the first reversing valve 1. The capillary tube is a commonly used throttling device, simple in structure and inexpensive. The throttling device mainly controls the cooling capacity required by the evaporator 11 by controlling the pressure of the refrigerant flowing within the device. The capillary tube is generally a section of copper tubing with a relatively small inner diameter.

[0081] like Figure 6 As shown, the control method for the adjustable clothes drying system includes S101: controlling the system to start and begin the preheating program: controlling the first reversing valve 1 and the second reversing valve 2 to jointly open the first passage 3 and completely close the second passage 4, entering the rapid preheating stage; S201: when the set preheating temperature or the set preheating time is reached, ending the preheating program and executing the drying program: controlling the first reversing valve 1 and the second reversing valve 2 to jointly open the second passage 4 and completely close the first passage 3, entering the main drying stage.

[0082] Specifically, after the washer-dryer finishes washing clothes, in the initial drying state, the compressor 7 or heat pump starts, driving the refrigerant flow within the system. The reversing valve activates, switching the refrigerant flow direction so that the refrigerant flows from compressor 7 or heat pump to outlet pipe 5, condenser 10, first reversing valve 1, second reversing valve 2, and return pipe 6. The refrigerant returns to the compressor 7 via return pipe 6, without flowing through the evaporator 11, allowing the system temperature to rise rapidly. Once the system temperature reaches a certain level, the reversing valve activates again, switching the refrigerant flow direction back to compressor 7 or heat pump to outlet pipe 5, condenser 10, first reversing valve 1, evaporator 11, second reversing valve 2, and return pipe 6. The refrigerant returns to the compressor 7 via return pipe 6. At this point, the evaporator 11 is at a lower temperature, allowing the hot, humid air to quickly condense into water droplets, achieving the purpose of drying clothes and effectively shortening the dryer's running time.

[0083] This tumble dryer includes not only the adjustable clothes drying system, but also an air duct drying circulation system for directly drying clothes, such as... Figure 10As shown, the system includes a drying chamber, a filtration device, an evaporator, a condenser, and a fan, connected sequentially from end to end. The drying chamber is used to hold clothes to be dried. Preferably, the filtration device includes a primary filtration device and a secondary filtration device. The primary filtration device includes a primary air inlet and a primary air outlet, and the secondary filtration device includes a secondary air inlet and a secondary air outlet, with the secondary air inlet connected to the primary air outlet. This is used to remove lint or debris from the clothes or air duct.

[0084] Furthermore, such as Figure 7 and 8 As shown, the drum dryer also includes a base assembly 8, a protective cover 9, and a fan. The base assembly 8 is located on the outer periphery of the drying chamber, and the evaporator 11, condenser 10, and compressor 7 are mounted on the base assembly 8. The protective cover 9 covers the evaporator 11 and condenser 10; the fan is located between the condenser 10 and the drying chamber, pushing the gas heated by the condenser 10 into the drying chamber according to a set flow path.

[0085] Example 3

[0086] like Figure 11 As shown, the washer-dryer combo includes an air duct module, a heat pump module, a filter module, and a drying chamber module. The air duct module contains a fan that drives the airflow within the duct along a predetermined path. The heat pump module contains a condenser 10, a compressor 7, an evaporator 11, etc. The drying chamber module includes a drying chamber or inner drum for storing clothes and is driven to rotate by a motor. The filter module includes a filter device, specifically a primary filter and a secondary filter, for filtering lint from the clothes. The heat pump module, air duct module, drying chamber module, and filter module are connected sequentially. In this embodiment, the washer-dryer combo is a drum type.

[0087] like Figures 4 to 6 and Figure 10 As shown, this embodiment of a drum-type washer-dryer uses the aforementioned adjustable clothes drying system, which includes a compressor 7, a condenser 10, a drying tube, and a capillary tube connected in sequence. Figure 1 and Figure 2 The evaporator 11 (not labeled) is connected to the drying tube 7 and the capillary tube 7. A first reversing valve 1 is provided between the capillary tube and the evaporator 11. The first reversing valve 1 includes a first outlet valve and a second outlet valve. The first outlet valve is directly connected to the compressor 7 through a first passage 3, and the second outlet valve is connected to the compressor 7 through a second passage 4. The evaporator 11 is located on the second passage 4. The first reversing valve 1 can control the refrigerant in the adjustable clothes drying system to flow through either the first passage 3 or the second passage 4. It should be understood that the adjustable clothes drying system in this tumble dryer uses two reversing valves.

[0088] Furthermore, a second reversing valve 2 is provided between the evaporator 11 and the compressor 7. The first passage 3 and the second passage 4 are respectively connected between the first reversing valve 1 and the second reversing valve 2. The second reversing valve 2 includes a first inlet valve and a second inlet valve. The outlet end of the first passage 3 is connected to the first inlet valve, and the outlet end of the second passage 4 is connected to the second inlet valve. By controlling the first outlet valve and the second outlet valve in the first reversing valve 1, and the first inlet valve and the second inlet valve in the second reversing valve 2, the refrigerant can be directly returned to the compressor 7 through the first passage 3, or returned to the compressor 7 through the evaporator 11 via the second passage 4. The first reversing valve 1 and the second reversing valve 2 can be solenoid valves.

[0089] Furthermore, the compressor 7 includes an outlet, an outlet pipe 5, a return port, and a return pipe 6. The outlet is connected to the first reversing valve 1 via the outlet pipe 5. The condenser 10 is disposed on the outlet pipe 5. The return port is connected to the second reversing valve 2 via the return pipe 6. The refrigerant in the first passage 3 returns directly to the compressor 7 via the return pipe 6. The refrigerant in the second passage 4 returns to the compressor 7 via the evaporator 11 and the return pipe 6.

[0090] Furthermore, the outlet pipe 5 also includes a drying pipe and a capillary tube connected in sequence between the condenser 10 and the first reversing valve 1. The capillary tube is a commonly used throttling device, simple in structure and inexpensive. The throttling device mainly controls the cooling capacity required by the evaporator 11 by controlling the pressure of the refrigerant flowing within the device. The capillary tube is generally a section of copper tubing with a relatively small inner diameter.

[0091] like Figure 6 As shown, the control method for the adjustable clothes drying system includes S101: controlling the system to start and begin the preheating program: controlling the first reversing valve 1 and the second reversing valve 2 to jointly open the first passage 3 and completely close the second passage 4, entering the rapid preheating stage; S201: when the set preheating temperature or the set preheating time is reached, ending the preheating program and executing the drying program: controlling the first reversing valve 1 and the second reversing valve 2 to jointly open the second passage 4 and completely close the first passage 3, entering the main drying stage.

[0092] Specifically, after the washer-dryer finishes washing clothes, in the initial drying state, the compressor 7 or heat pump starts, driving the refrigerant flow within the system. The reversing valve activates, switching the refrigerant flow direction so that the refrigerant flows from compressor 7 or heat pump to outlet pipe 5, condenser 10, first reversing valve 1, second reversing valve 2, and return pipe 6. The refrigerant returns to the compressor 7 via return pipe 6, without flowing through the evaporator 11, allowing the system temperature to rise rapidly. Once the system temperature reaches a certain level, the reversing valve activates again, switching the refrigerant flow direction back to compressor 7 or heat pump to outlet pipe 5, condenser 10, first reversing valve 1, evaporator 11, second reversing valve 2, and return pipe 6. The refrigerant returns to the compressor 7 via return pipe 6. At this point, the evaporator 11 is at a lower temperature, allowing the hot, humid air to quickly condense into water droplets, achieving the purpose of drying clothes and effectively shortening the dryer's running time.

[0093] This tumble dryer includes not only the adjustable clothes drying system, but also an air duct drying circulation system for directly drying clothes, such as... Figure 10 As shown, the system includes a drying chamber, a filtration device, an evaporator, a condenser, and a fan, connected sequentially from end to end. The drying chamber is used to hold clothes to be dried. Preferably, the filtration device includes a primary filtration device and a secondary filtration device. The primary filtration device includes a primary air inlet and a primary air outlet, and the secondary filtration device includes a secondary air inlet and a secondary air outlet, with the secondary air inlet connected to the primary air outlet. This is used to remove lint or debris from the clothes or air duct.

[0094] Furthermore, such as Figure 7 and 8 As shown, the drum dryer also includes a base assembly 8, a protective cover 9, and a fan. The base assembly 8 is located on the outer periphery of the drying chamber, and the evaporator 11, condenser 10, and compressor 7 are mounted on the base assembly 8. The protective cover 9 covers the evaporator 11 and condenser 10; the fan is located between the condenser 10 and the drying chamber, pushing the gas heated by the condenser 10 into the drying chamber according to a set flow path.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A control method for an adjustable clothes drying system, the adjustable clothes drying system comprising a compressor, a condenser and an evaporator connected in sequence, wherein a first reversing valve is provided between the condenser and the evaporator, the first reversing valve comprising a first outlet valve and a second outlet valve. The first outlet valve port is directly connected to the compressor through a first passage, and the second outlet valve port is connected to the compressor through a second passage. The evaporator is located on the second passage. Its features are: The control method of the adjustable clothes drying system includes: The system is started and a preheating program is executed: the first reversing valve is controlled to open the first passage, directly connecting the refrigerant and the compressor, and the second passage is closed, entering the rapid preheating stage; Once the set preheating temperature or set preheating time is reached, the preheating program ends and the drying program is executed: the first reversing valve is controlled to open the second passage, the refrigerant is connected to the compressor through the evaporator, the first passage is closed, and the main drying stage begins.

2. The control method for the adjustable clothes drying system according to claim 1, characterized in that: The system is started and a preheating procedure is executed: the first and second directional valves are controlled to open the first passage and completely close the second passage, entering the rapid preheating stage. Once the set preheating temperature or set preheating time is reached, the preheating program ends and the drying program is executed: the first reversing valve and the second reversing valve are controlled to jointly open the second passage and completely close the first passage, thus entering the main drying stage.

3. An adjustable clothes drying system, employing the control method of any one of claims 1-2 for an adjustable clothes drying system. Its features are: A second reversing valve is also provided between the evaporator and the compressor, and the first passage and the second passage are respectively connected between the first reversing valve and the second reversing valve; The second reversing valve includes a first inlet valve port and a second inlet valve port. The outlet end of the first passage is connected to the first inlet valve port, and the outlet end of the second passage is connected to the second inlet valve port. By controlling the first reversing valve and the second reversing valve, the refrigerant can be directly returned to the compressor through the first passage, or returned to the compressor through the evaporator via the second passage.

4. The adjustable clothes drying system according to claim 3, characterized in that: The compressor includes an outlet and a return port. The outlet is connected to the first reversing valve via an outlet pipe. The condenser is mounted on the outlet pipe. The return port is connected to the second reversing valve via a return pipe. The refrigerant in the first passage returns directly to the compressor via the return pipe, and the refrigerant in the second passage returns to the compressor via the evaporator and the return pipe.

5. The adjustable clothes drying system according to claim 4, characterized in that: The outlet pipe also includes a drying pipe and a capillary tube connected in sequence between the condenser and the first reversing valve.

6. An adjustable clothes drying device, characterized in that: The device includes an adjustable clothes drying system according to any one of claims 3 to 5, and controls the flow path of the refrigerant using the control method of claim 1 or 2.

7. The adjustable clothes drying device according to claim 6, characterized in that: The adjustable clothes drying equipment also includes a drying chamber disposed between the condenser and the evaporator.

8. The adjustable clothes drying device according to claim 7, characterized in that: The adjustable clothes drying equipment also includes a filter device disposed between the drying chamber and the evaporator.

9. The adjustable clothes drying equipment according to claim 8, characterized in that: The filtration device includes a primary filtration device and a secondary filtration device. The primary filtration device includes a primary air inlet and a primary air outlet, and the secondary filtration device includes a secondary air inlet and a secondary air outlet. The secondary air inlet is connected to the primary air outlet.

10. The adjustable clothes drying device according to any one of claims 6 to 9, characterized in that: The adjustable clothes drying equipment also includes a base device, a protective cover, and a fan. The base device is located on the outer periphery of the drying chamber, and the evaporator, condenser, and compressor are mounted on the base device. The protective cover is installed on the evaporator and condenser; the fan is located between the condenser and the drying chamber, and pushes the gas heated by the condenser into the drying chamber according to the set flow path.

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