A drying system, a drying apparatus and a control method comprising a fresh air system

Abstract

This invention belongs to the field of garment processing technology, and particularly relates to a drying system, drying equipment, and control method incorporating a fresh air system. The drying system includes a drying duct, a fresh air inlet assembly, and an exhaust outlet. The fresh air inlet assembly includes at least two inlet channels, with inlets for each channel located at different positions within the equipment to allow fresh air from different locations outside to enter. The fresh air inlet assembly is connected to the drying duct to allow the fresh air entering the assembly to flow into the drying duct. The exhaust outlet allows exhaust gas from the drying duct to be discharged to the outside. This invention allows the equipment to simultaneously draw in fresh air from multiple locations. The inlet cross-sectional area is larger than a single inlet design, increasing the amount of fresh air drawn in per unit time. This increases the number of fresh air entry pathways, and even if one fresh air inlet duct fails (e.g., due to blockage or foreign objects), the other fresh air inlet duct can still maintain the normal operation of the entire system.

Description

Technical Field

[0001] This invention belongs to the field of clothing processing technology, and particularly relates to a drying system, drying equipment and control method including a fresh air system. Background Technology

[0002] With the rapid development of home appliance technology, heat pump washer-dryers have become the mainstream choice for modern families due to their core advantages such as high efficiency, energy saving, environmental protection, and low noise. The application of a fresh air system effectively improves moisture evaporation efficiency and optimizes the uniformity of clothing drying by continuously supplying fresh air to the drying duct. However, existing drying systems with fresh air functions typically only have one fresh air inlet and one fresh air outlet. The limited air intake area of ​​a single inlet results in insufficient fresh air intake, leading to low efficiency in the exchange of air between the drum and the outside air. During the drying process, the hot and humid air inside the drum cannot be quickly and fully replaced with dry air, affecting drying efficiency and the quality of clothing care.

[0003] There is currently no effective solution to the problem of low air exchange efficiency caused by setting only a single fresh air inlet in the existing technology. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a drying system, drying equipment, and control method that includes a fresh air system. This achieves the goal of enabling the equipment to simultaneously draw in fresh air from multiple locations, increasing the air inlet cross-sectional area compared to a single air inlet design, and increasing the amount of fresh air drawn in per unit time. This not only increases the number of fresh air entry paths but also ensures that even if one fresh air inlet duct fails to function (e.g., due to blockage or foreign objects), the other fresh air inlet duct can still maintain the normal operation of the entire system.

[0005] In view of this, the present invention provides a drying system including a fresh air system, comprising: Drying air duct; The fresh air intake component includes at least two air intake channels. The air inlets of each air intake channel are respectively set at different positions of the equipment to allow fresh air from different external locations to enter. The fresh air intake component is connected to the drying air duct to allow the fresh air entering the fresh air intake component to enter the drying air duct. The exhaust gas outlet is used to discharge the exhaust gas in the drying air duct to the outside.

[0006] In this technical solution, by setting at least two air intake channels and placing the air inlets of each air intake channel at different locations on the equipment, the equipment can simultaneously draw in fresh air from multiple locations. The air intake cross-sectional area is larger than that of a single air inlet design, and the amount of fresh air drawn in per unit time is increased. This not only increases the number of fresh air entry paths, but also ensures that if one of the fresh air intake ducts fails to work, such as due to blockage or foreign objects, the other fresh air intake duct can still maintain the normal operation of the entire system.

[0007] Furthermore, the fresh air intake assembly also includes a cavity, and the air outlet of each air intake channel is connected to the cavity. The cavity is provided with a fresh air outlet connected to the drying air duct.

[0008] In this technical solution, by setting up a cavity, the air outlets of each air inlet channel converge into the same cavity. The fresh air introduced from each channel is mixed within the cavity before being uniformly sent into the drying air duct through the fresh air outlet on the cavity. This structure allows multiple fresh air inputs to be received with only one interface on the drying air duct, reducing the number of sealing points. The layout of each air inlet channel is not limited by the position of the drying air duct interface, improving structural compactness and layout flexibility, and simplifying the structure while optimizing costs.

[0009] Furthermore, the air intake channel includes a front air intake channel and a rear air intake channel, with the air inlet of the front air intake channel located on the front side of the equipment and the air inlet of the rear air intake channel located on the rear side of the equipment.

[0010] In this technical solution, the air inlet of the front air inlet channel is located on the front side of the equipment, and the air inlet of the rear air inlet channel is located on the rear side of the equipment, so that the equipment can draw in air from both the front and rear directions at the same time, increasing the diversity of air intake sources.

[0011] Furthermore, the air inlet of the rear air inlet channel is directly disposed on the cavity and connected to the external environment. The front air inlet channel includes a front air inlet pipe, the air inlet of the front air inlet pipe is disposed on the front side of the equipment, and the air outlet of the front air inlet pipe is connected to the cavity.

[0012] In this technical solution, the air inlet of the rear air inlet channel is directly installed on the cavity, allowing rear air to directly enter the cavity. This results in a short path, low resistance, and a compact structure. The front air inlet channel is implemented through a front air inlet duct—the air inlet is located at the front of the equipment, and the air outlet is connected to the cavity. Outside air enters the duct through the air inlet at the front of the equipment, flows along the duct, and is guided into the cavity, enabling front air to be introduced into the cavity.

[0013] Furthermore, the fresh air outlet of the cavity is connected to the fresh air inlet duct, and the other end of the fresh air inlet duct extends into the negative pressure area located upstream of the fan in the drying air duct.

[0014] In this technical solution, a negative pressure zone is formed in the upstream area of ​​the fan when it is running. The fresh air outlet is connected to this negative pressure zone through the fresh air inlet duct. Outside air is automatically drawn in under the action of pressure difference, eliminating the need to add independent air supply equipment to the fresh air system, thereby saving component costs and overall energy consumption.

[0015] Furthermore, an evaporator is also provided in the drying duct, and the exhaust gas outlet is located in the positive pressure area upstream of the evaporator on the inner two-electrode box.

[0016] In this technical solution, the exhaust gas outlet is located at the upstream end of the evaporator, where the air has just exited from the drum and its temperature and humidity are both relatively high. Positioning the exhaust gas outlet here allows some of the hot and humid air to be discharged before entering the evaporator, reducing the amount of hot and humid air that the evaporator needs to process. Simultaneously, this location is in the positive pressure zone on the fan outlet side, and exhaust is completed by positive pressure airflow, eliminating the need for an additional exhaust system.

[0017] Furthermore, the fresh air intake assembly also includes an opening and closing component, which is used to start or stop the entry of outside fresh air into the drying air duct through the fresh air intake assembly.

[0018] In this technical solution, the opening and closing component is used to control the connection and disconnection between the fresh air intake component and the drying air duct. Since all air intake channels converge in the cavity and are uniformly sent into the drying air duct through the fresh air outlet, the opening and closing component only needs to control this one node to simultaneously control whether all air intake channels are inlet, without the need to set up a separate control device for each air intake channel.

[0019] Furthermore, the opening and closing assembly includes a fresh air baffle and a drive motor. The fresh air baffle is rotatably disposed at the fresh air outlet. The output end of the drive motor is drivenly connected to the fresh air baffle. The drive motor drives the fresh air baffle to rotate, thereby opening or closing the fresh air outlet.

[0020] In this technical solution, a fresh air damper is rotatably mounted at the fresh air outlet. A drive motor rotates the damper. When the damper rotates to the closed position, the fresh air outlet is blocked, and the air intake is interrupted. When the damper rotates to the open position, the fresh air outlet is open, and the air intake is unobstructed. This structure achieves control over the opening and closing of the fresh air outlet.

[0021] Furthermore, the drive motor is a stepper motor, which is used to drive the fresh air baffle to rotate and maintain it at any preset angle.

[0022] In this technical solution, the drive motor is a stepper motor, which can drive the fresh air baffle to rotate and maintain at any preset angle, so that the opening of the fresh air baffle can be adjusted in multiple levels or continuously between fully open and fully closed, thereby adjusting the amount of air intake according to the needs.

[0023] Furthermore, the drying system includes a temperature detection module and a control module that are electrically connected. The temperature detection module is used to detect the temperature of the drying air duct, and the control module is used to control the operation of the drive motor based on the detection result of the temperature detection module.

[0024] Furthermore, a garment processing device includes the aforementioned drying system containing a fresh air system, the cavity being disposed at the rear back panel of the drying device.

[0025] Furthermore, a control method for a drying system including a fresh air system, applied to the drying system, includes: Obtain the temperature parameters within the drying duct; When the temperature parameter does not trigger the temperature protection condition, the opening and closing component is controlled to open periodically according to a preset time interval, so that fresh air from at least two different locations outside enters the drying air duct through the fresh air intake component for air replacement. When the temperature parameter triggers the temperature protection condition, if the temperature parameter is greater than the first preset temperature threshold, the opening and closing component opens to allow fresh air from the outside to enter the drying duct; if the temperature parameter is less than the second preset temperature threshold, the opening and closing component stops fresh air from entering the drying duct. The first preset temperature threshold is greater than the second preset temperature threshold.

[0026] In this technical solution, the control method integrates active ventilation logic and temperature protection logic into the same control flow.

[0027] Under normal drying conditions, i.e., when the temperature parameter is within the safe range between the second and first preset temperature thresholds, the system executes a timed ventilation mode. The control module controls the opening and closing components to open once at preset time intervals (e.g., every 15 minutes), maintaining the opening for a preset duration (e.g., 2 to 3 minutes) before closing. During the opening and closing of the components, outside air is simultaneously drawn into the cavity through at least two air inlet channels, converges, and is then sent into the drying air duct through the fresh air outlet. The simultaneous intake of air through two channels increases the amount of fresh air introduced in a single ventilation cycle. The fresh air mixes with the circulating air and enters the drum, while the humid and hot air accumulated inside the drum is continuously discharged to the outside through the normally open exhaust vent. Through this periodic opening and closing action, the humid and hot air inside the drum is gradually replaced with dry air, effectively reducing the relative humidity inside the drum, inhibiting the growth of bacteria and mold, and promptly expelling odors released from the clothes.

[0028] When the temperature parameter exceeds the first preset temperature threshold, the temperature protection condition is triggered, and the control module immediately controls the opening and closing components to open. Outside cold air rushes into the drying air duct through at least two air inlet channels at the same time, forcibly cooling the circulating air and causing the temperature inside the cylinder to drop rapidly to a safe range.

[0029] When the temperature parameter is lower than the second preset temperature threshold, the temperature protection condition is triggered. The control module controls the opening and closing components to close, cutting off the input of external cold air to all air intake channels, so that the drying system returns to a closed internal circulation state. Heat gradually accumulates and rises in the drying air duct, ensuring that the drying temperature quickly returns to the effective range.

[0030] By integrating timed ventilation logic and temperature protection logic into the same control method, both share the same temperature detection module, control module, and on / off components. Within the safe temperature range, ventilation is performed at fixed time intervals, continuously replacing the humid and hot air inside the cylinder, effectively inhibiting bacterial growth and eliminating odors. In case of abnormal temperature, the timed cycle is interrupted, and temperature protection is prioritized. This achieves the dual functions of intelligent temperature control and healthy ventilation with extremely low incremental cost.

[0031] The beneficial effects of this invention are: 1. By setting at least two air intake channels and placing the air inlets of each channel at different locations on the equipment, the equipment can simultaneously draw in fresh air from multiple locations. The air intake cross-sectional area is larger than that of a single air inlet design, and the amount of fresh air drawn in per unit time is increased. This not only increases the ways in which fresh air enters, but also ensures that if one of the fresh air intake ducts fails to work, such as due to blockage or foreign objects, the other fresh air intake duct can still maintain the normal operation of the entire system.

[0032] 2. By designing a cavity, the air outlets of all air inlets converge into the same cavity. The fresh air introduced from each channel mixes within the cavity before being uniformly delivered into the drying duct via the fresh air outlet on the cavity. This structure allows for multiple fresh air inputs to be received with only one interface on the drying duct, reducing the number of sealing points. The layout of each air inlet channel is not limited by the location of the drying duct interface, improving structural compactness and layout flexibility, and simplifying the structure while optimizing costs.

[0033] 3. When the fan is running, a negative pressure zone is formed in its upstream area. The fresh air outlet is connected to this negative pressure zone through the fresh air inlet duct. Outside air is automatically drawn in under the action of pressure difference. There is no need to add a separate air supply equipment for the fresh air system, thereby saving the cost of parts and the energy consumption of the whole machine.

[0034] 4. The exhaust gas outlet is located at the upstream end of the evaporator, where the air has just exited from the drum and is at a relatively high temperature and humidity level. Positioning the exhaust gas outlet here allows some of the hot and humid air to be discharged before entering the evaporator, reducing the amount of hot and humid air the evaporator needs to process. Simultaneously, this location is in the positive pressure zone on the fan outlet side, and exhaust is completed by positive pressure airflow, eliminating the need for an additional exhaust system.

[0035] 5. The opening and closing component is used to control the connection between the fresh air intake component and the drying air duct. Since all air intake channels converge in the cavity and are uniformly sent into the drying air duct through the fresh air outlet, the opening and closing component only needs to control this one node to simultaneously control whether all air intake channels are inlet, without the need to set up a separate control device for each air intake channel.

[0036] 6. The drive motor is a stepper motor, which can drive the fresh air baffle to rotate and maintain at any preset angle, so that the opening of the fresh air baffle can be adjusted in multiple levels or continuously between fully open and fully closed, thereby adjusting the amount of air intake according to needs.

[0037] 7. By integrating the timed ventilation logic and temperature protection logic into the same control method, both share the same temperature detection module, control module, and on / off components. Within the safe temperature range, ventilation is performed at fixed time intervals, continuously replacing the humid and hot air inside the cylinder, effectively inhibiting bacterial growth and eliminating odors; in case of abnormal temperature, the timed rhythm is interrupted, and temperature protection is prioritized. This achieves the dual functions of intelligent temperature control and healthy ventilation with extremely low incremental cost. Attached Figure Description

[0038] Figure 1 This is a system diagram of the drying system operation; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a top view of the fresh air intake assembly; Figure 4 This is a cross-sectional view of a fresh air system; Figure 5 This is a diagram showing the fresh air vent opening; Figure 6 This is a diagram showing the fresh air outlet being closed; Figure 7 This is a schematic diagram showing the location of the fresh air intake component on the drying equipment.

[0039] The markings in the diagram are as follows: 1. Drying air duct; 2. Exhaust gas outlet; 3. Cavity; 4. Fresh air outlet; 5. Front air inlet channel; 6. Rear air inlet channel; 7. Fresh air inlet duct; 8. Fan; 9. Evaporator; 10. Condenser; 11. Opening and closing assembly; 12. Fresh air damper; 13. Drive motor; 14. Rear back panel; 15. Front air inlet duct. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0041] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0042] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0043] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0044] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0045] Example 1 like Figure 1-7 As shown, a drying system including a fresh air system includes: Drying air duct 1; The fresh air intake component includes at least two air intake channels. The air inlets of each air intake channel are respectively set at different positions of the equipment to allow fresh air from different external locations to enter. The fresh air intake component is connected to the drying air duct 1 to allow the fresh air entering the fresh air intake component to enter the drying air duct 1. Exhaust gas outlet 2 is used to discharge the exhaust gas in the drying air duct 1 to the outside.

[0046] By setting at least two air intake channels and placing the air inlets of each channel at different locations on the equipment, the equipment can simultaneously draw in fresh air from multiple locations. The air intake cross-sectional area is larger than that of a single air inlet design, and the amount of fresh air drawn in per unit time is increased. This not only increases the number of fresh air entry paths, but also ensures that if one of the fresh air intake ducts fails to work, such as due to blockage or foreign objects, the other fresh air intake duct can still maintain the normal operation of the entire system.

[0047] The fresh air intake assembly also includes a cavity 3, with the air outlets of each intake channel connected to the cavity 3. The cavity 3 has a fresh air outlet 4 connected to the drying duct 1. By configuring the cavity 3, the air outlets of each intake channel converge into the same cavity 3. The fresh air introduced from each channel mixes within the cavity 3 before being uniformly sent into the drying duct 1 through the fresh air outlet 4 on the cavity 3. This structure allows the drying duct 1 to receive multiple fresh air inputs with only one interface, reducing the number of sealing points. The layout of each intake channel is not limited by the interface position of the drying duct 1, improving structural compactness and layout flexibility, simplifying the structure and optimizing costs.

[0048] The air intake channels include a front air intake channel 5 and a rear air intake channel 6. The air inlet of the front air intake channel 5 is located on the front side of the equipment, and the air inlet of the rear air intake channel 6 is located on the rear side of the equipment. The location of the air inlet of the front air intake channel 5 at the front and the air inlet of the rear air intake channel 6 at the rear allows the equipment to simultaneously draw in air from both directions, increasing the diversity of air intake sources.

[0049] The air inlet of the rear air inlet channel 6 is directly located on the cavity 3 and connected to the external environment. The front air inlet channel 5 includes a front air inlet duct 15, the air inlet of which is located on the front side of the equipment, and the air outlet of which is connected to the cavity 3. The rear air inlet channel 6 has its air inlet directly on the cavity 3, allowing rear air to directly enter the cavity 3. This results in a short path, low resistance, and a compact structure. The front air inlet channel 5 achieves this through the front air inlet duct 15—the air inlet is located on the front side of the equipment, and the air outlet is connected to the cavity 3. Outside air enters the duct through the air inlet on the front side of the equipment, flows along the duct, and is guided into the cavity 3, allowing front air to be introduced into the cavity 3.

[0050] The fresh air outlet 4 of the cavity 3 is connected to the fresh air inlet duct 7, and the other end of the fresh air inlet duct 7 extends into the negative pressure area upstream of the fan 8 in the drying air duct 1. When the fan 8 is running, a negative pressure area is formed upstream of it. The fresh air outlet 4 is connected to this negative pressure area through the fresh air inlet duct 7. Outside air is automatically drawn in under the action of pressure difference, eliminating the need to add a separate air supply device for the fresh air system, thereby saving component costs and overall energy consumption.

[0051] The drying duct 1 is also equipped with an evaporator 9 and a condenser 10. The exhaust gas outlet 2 is located in the positive pressure region upstream of the evaporator 9 on the inner two-element box. The exhaust gas outlet 2 is located at the upstream end of the evaporator 9, where the air has just exited from the drum, and its temperature and moisture content are both relatively high. Positioning the exhaust gas outlet 2 here allows some of the high-humidity, hot air to be discharged before entering the evaporator 9, reducing the amount of humid, hot air that the evaporator 9 needs to process. Simultaneously, this location is in the positive pressure zone on the air outlet side of the fan 8, and exhaust is completed by positive pressure airflow, eliminating the need for additional exhaust ventilation devices.

[0052] Example 2 like Figure 1-7 As shown, the fresh air intake assembly also includes an opening and closing assembly 11, which is used to start or stop the entry of outside fresh air into the drying air duct 1 through the fresh air intake assembly.

[0053] The opening and closing assembly 11 is used to control the connection and disconnection between the fresh air intake assembly and the drying duct 1. Since all air intake channels converge in the cavity 3 and are uniformly sent into the drying duct 1 through the fresh air outlet 4, the opening and closing assembly 11 only needs to control this one node to simultaneously control the air intake of all air intake channels, eliminating the need for separate control devices for each air intake channel. The opening and closing assembly 11 includes a fresh air baffle 12 and a drive motor 13. The fresh air baffle 12 is rotatably mounted at the fresh air outlet 4, and the output end of the drive motor 13 is driven and connected to the fresh air baffle 12. The drive motor 13 drives the fresh air baffle 12 to rotate, thereby opening or closing the fresh air outlet 4.

[0054] The fresh air damper 12 is rotatably mounted at the fresh air outlet 4. The drive motor 13 drives the damper to rotate. When the damper rotates to the closed position, the fresh air outlet 4 is blocked, and the air intake is interrupted; when the damper rotates to the open position, the fresh air outlet 4 is open, and the air intake is unobstructed. This structure realizes the control of the opening and closing of the fresh air outlet 4.

[0055] The drive motor 13 is a stepper motor, which drives the fresh air baffle 12 to rotate and maintain it at any preset angle. The stepper motor 13 can drive the fresh air baffle 12 to rotate and maintain it at any preset angle, allowing the opening degree of the fresh air baffle 12 to be adjusted in multiple levels or continuously between fully open and fully closed, thereby enabling the adjustment of the air intake volume according to requirements.

[0056] The drying system includes a temperature detection module and a control module that are electrically connected. The temperature detection module is used to detect the temperature of the drying air duct 1, and the control module is used to control the operation of the drive motor 13 according to the detection result of the temperature detection module.

[0057] Example 3 like Figure 7As shown, a garment processing device includes a drying system containing a fresh air system, wherein the cavity 3 is disposed at the rear back panel 14 of the drying device.

[0058] Example 4 A control method for a drying system including a fresh air system, applied to the drying system, comprising: Obtain the temperature parameters within the drying duct 1; When the temperature parameter does not trigger the temperature protection condition, the opening and closing component 11 is controlled to open periodically according to a preset time interval, so that fresh air from at least two different locations outside enters the drying air duct 1 through the fresh air intake component for air replacement. When the temperature parameter triggers the temperature protection condition, if the temperature parameter is greater than the first preset temperature threshold, the opening and closing component 11 opens to allow fresh air from the outside to enter the drying duct 1; if the temperature parameter is less than the second preset temperature threshold, the opening and closing component 11 stops the fresh air from entering the drying duct 1. The first preset temperature threshold is greater than the second preset temperature threshold.

[0059] This control method integrates active ventilation logic and temperature protection logic into the same control flow.

[0060] Under normal drying conditions, i.e., when the temperature parameter is within the safe range between the second preset temperature threshold and the first preset temperature threshold, the system executes a timed ventilation mode. The control module controls the opening and closing component 11 to open once at a preset time interval (e.g., every 15 minutes), and each time it is opened and maintained for a preset duration (e.g., 2 to 3 minutes) before closing. During the opening and closing of the opening and closing component 11, outside air is simultaneously drawn into the cavity 3 through at least two air inlet channels, converges, and is sent into the drying air duct 1 through the fresh air outlet 4. The simultaneous air intake through the dual channels increases the amount of fresh air introduced in a single ventilation cycle. After the fresh air mixes with the circulating air, it enters the drum, while the humid and hot air accumulated in the drum is continuously discharged to the outside through the normally open exhaust vent 2. Through this periodic opening and closing action, the humid and hot air in the drum is gradually replaced with dry air, effectively reducing the relative humidity in the drum, inhibiting the growth of bacteria and mold, and timely expelling odor gases released from the clothes.

[0061] When the temperature parameter exceeds the first preset temperature threshold, the temperature protection condition is triggered, and the control module immediately controls the opening and closing component 11 to open. Outside cold air rushes into the drying air duct 1 through at least two air inlet channels at the same time, forcibly cooling the circulating air and causing the temperature inside the cylinder to drop rapidly to a safe range.

[0062] When the temperature parameter is lower than the second preset temperature threshold, the temperature protection condition is triggered, and the control module controls the opening and closing component 11 to close, cutting off the input of external cold air to all air intake channels, so that the drying system returns to the closed internal circulation state, and the heat gradually accumulates and rises in the drying air duct 1, ensuring that the drying temperature quickly recovers to the effective range.

[0063] By integrating timed ventilation logic and temperature protection logic into the same control method, both share the same temperature detection module, control module, and on / off component 11. Within the safe temperature range, ventilation is performed at fixed time intervals, continuously replacing the humid and hot air inside the cylinder, effectively inhibiting bacterial growth and eliminating odors; in case of abnormal temperature, the timed rhythm is interrupted, and temperature protection is prioritized. This achieves the dual functions of intelligent temperature control and healthy ventilation with extremely low incremental cost.

[0064] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A drying system including a fresh air system, characterized in that... ,include: Drying air duct (1); The fresh air intake component includes at least two air intake channels. The air inlets of each air intake channel are respectively set at different positions of the equipment to allow fresh air from different external locations to enter. The fresh air intake component is connected to the drying air duct (1) to allow the fresh air entering the fresh air intake component to enter the drying air duct (1). Waste gas outlet (2) is used to discharge the waste gas in the drying duct (1) to the outside.

2. The drying system including a fresh air system according to claim 1, characterized in that, The fresh air intake assembly also includes an opening and closing assembly (11), which is used to start or stop the entry of outside fresh air into the drying duct (1) through the fresh air intake assembly.

3. A drying system including a fresh air system according to claim 2, characterized in that, The fresh air intake assembly also includes a cavity (3), and the air outlet of each air intake channel is connected to the cavity (3). The cavity (3) is provided with a fresh air outlet (4) connected to the drying air duct (1).

4. A drying system including a fresh air system according to claim 3, characterized in that, The opening and closing assembly (11) includes a fresh air baffle (12) and a drive motor (13). The fresh air baffle (12) is rotatably disposed at the fresh air outlet (4). The output end of the drive motor (13) is driven to connect with the fresh air baffle (12). The drive motor (13) drives the fresh air baffle (12) to rotate so that the fresh air outlet (4) is opened or closed.

5. A drying system including a fresh air system according to claim 3, characterized in that, The air intake channels include a front air intake channel (5) and a rear air intake channel (6). The air inlet of the front air intake channel (5) is located on the front side of the equipment, and the air inlet of the rear air intake channel (6) is located on the rear side of the equipment.

6. A drying system including a fresh air system according to claim 5, characterized in that, The air inlet of the rear air inlet channel (6) is directly set on the cavity (3) and connected to the external environment. The front air inlet channel (5) includes a front air inlet pipe (15). The air inlet of the front air inlet pipe (15) is set on the front side of the equipment. The air outlet of the front air inlet pipe (15) is connected to the cavity (3).

7. A drying system including a fresh air system according to claim 6, characterized in that, The fresh air outlet (4) of the cavity (3) is connected to the fresh air inlet pipe (7), and the other end of the fresh air inlet pipe (7) extends into the negative pressure area located upstream of the fan (8) in the drying air duct (1).

8. A drying system including a fresh air system according to claim 2, characterized in that, An evaporator (9) is also provided in the drying air duct (1), and the exhaust gas outlet (2) is located in the positive pressure area upstream of the evaporator (9) on the inner two-piece box.

9. A garment processing device, characterized in that, A drying system comprising a fresh air system as described in any one of claims 1-8.

10. A control method, characterized in that, The drying system applicable to any one of claims 2-8 includes: Obtain the temperature parameters inside the drying duct (1); When the temperature parameter does not trigger the temperature protection condition, the opening and closing component (11) is controlled to open periodically according to a preset time interval so that fresh air from at least two different locations outside enters the drying duct (1) through the fresh air intake component for air replacement. When the temperature parameter triggers the temperature protection condition, if the temperature parameter is greater than the first preset temperature threshold, the opening and closing component (11) opens to allow fresh air from the outside to enter the drying duct (1). If the temperature parameter is less than the second preset temperature threshold, the opening and closing component (11) stops the fresh air from entering the drying duct (1). The first preset temperature threshold is greater than the second preset temperature threshold.

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