Electric clothes drying machine and self-circulation drying system thereof

Abstract

The application discloses a self-circulation drying system, which comprises a hot air blower, a flow guide blower and a drying area formed by the spacing between the hot air blower and the flow guide blower, wherein the hot air blower and the flow guide blower are mutually connected to form a circulating air supply channel in the drying area. The self-circulation drying system of the application forms an open drying area by means of the hot air blower and the flow guide blower, which facilitates the use of the drying function of the electric clothes drying machine, i.e. the starting is convenient, no additional, reduction or adjustment of accessories of the electric clothes drying machine is needed, and the drying effect can be improved to a certain extent.

Description

Technical Field

[0001] This application relates to the field of electric clothes drying rack technology, and more specifically, to an electric clothes drying rack and its self-circulating drying system. Background Technology

[0002] While bottom-mounted dryers in electric clothes drying racks can address the issue of insufficient efficiency to some extent, they still cannot effectively overcome the problem of excessive heat loss. Related technologies propose adding a detachable drying hood to the outside of the drying rack, which can solve the heat loss problem, but it introduces other issues. For example, the drying hood needs to be hung and stored, making it inconvenient to use at any time; the drying hood also creates a large obstruction, affecting the use of space around the electric clothes drying rack. Utility Model Content

[0003] This application addresses the shortcomings of existing methods by proposing an electric clothes drying rack and its self-circulating drying system to solve the technical problems of insufficient drying effect and inconvenient use of the drying function in related technologies.

[0004] In a first aspect, this application provides a self-circulating drying system, which includes a hot air blower, a guide fan, and a drying zone formed by the spacing between the hot air blower and the guide fan, wherein the hot air blower and the guide fan mutually guide each other to form a circulating air supply channel in the drying zone.

[0005] Alternatively, the hot air blower includes a shroud, a heating element and a first fan housed within the shroud, the shroud being configured with an air outlet facing the guide fan and an air inlet not coplanar with the air outlet.

[0006] Alternatively, the hood may include an upper hood and a lower hood that overlap each other, with the upper hood having the air outlet.

[0007] Alternatively, the shroud is connected to a pivot structure, allowing the shroud to rotate around the pivot structure to change the position of the air outlet.

[0008] Alternatively, the airflow guide fan includes an air duct component and a second fan housed within the air duct component, the air duct component being configured to face the air inlet slot and air outlet slot of the hot air fan.

[0009] Alternatively, the duct component includes a longitudinally elongated base plate and side plates spaced apart on both sides of the longitudinal length of the base plate. The gaps between the side plates and the base plate are respectively configured as an air inlet slot and an air outlet slot. The duct component also includes end plates disposed at both ends of the longitudinal length of the duct component, and the end plates are respectively connected to the base plate and the side plates.

[0010] Alternatively, the air duct component includes a circular base plate, an inner partition plate extending on the base plate to form an inner ring channel, and an outer partition plate forming an outer ring channel with the inner partition plate, wherein the inner ring channel is configured as an air inlet slot and the outer ring channel is configured as an air outlet slot.

[0011] Alternatively, the hot air blower may be positioned below the air guide fan.

[0012] Alternatively, a connecting rod may be provided between the hot air blower and the guide fan.

[0013] Furthermore, the link includes at least one telescopic segment.

[0014] Secondly, this application provides an electric clothes drying rack, which includes a main unit and a drying assembly controlled by the main unit, wherein a self-circulating drying system as described above is used, wherein the hot air blower is disposed at the drying assembly and the air guide fan is disposed at the main unit.

[0015] The beneficial technical effects of the technical solutions provided in this application include:

[0016] (1) The self-circulating drying system of this application uses a hot air blower and a guide fan to form an open drying zone, which facilitates the use of the drying function of the electric clothes dryer. It is easy to start and does not require adding, reducing or adjusting the accessories of the electric clothes dryer, and can also improve the drying effect to a certain extent.

[0017] (2) The self-circulating drying system of this application can adjust the size of the drying zone by adjusting the positional relationship between the air inlet and the air outlet between the hot air blower and the guide fan, so as to adapt to the size and volume of the clothes to be dried.

[0018] (3) The electric clothes drying rack of this application utilizes the original main unit and drying components of the electric clothes drying rack to configure the self-circulating drying system of this application, which can avoid greatly increasing the size of the clothes drying rack and maintain the concealment of the electric clothes drying rack.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 A three-dimensional structural diagram of an electric clothes drying rack provided for an embodiment of this application is shown, which illustrates a pattern diagram of circulating air supply;

[0022] Figure 2 for Figure 1 Exploded view of the structure of a medium-heat air blower;

[0023] Figure 3 for Figure 1 The side sectional view shows the internal structure of the guide fan and the schematic diagram of the circulating air supply.

[0024] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the stroke tract;

[0025] Figure 5 The side sectional view of an electric clothes drying rack provided in the second embodiment of this application shows the structure and circulating air supply mode of another guide fan and hot air fan;

[0026] Figure 6 A flowchart illustrating a control method for an electric clothes drying rack provided in an embodiment of this application. Detailed Implementation

[0027] The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0028] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by the art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0030] refer to Figures 1-4This application provides a self-circulating drying system, which includes a hot air blower 1 and a guide fan 2 spaced apart, forming a drying zone 3 between the hot air blower 1 and the guide fan 2. The hot air blower 1 and the guide fan 2 mutually guide each other to form a circulating air supply channel in the drying zone 3, maintaining the drying zone 3 in an open mode while ensuring full utilization of hot air for drying. This self-circulating drying system is suitable for use in electric clothes drying racks. Generally, an electric clothes drying rack includes a main unit 5 and a drying assembly 6 controlled by the main unit 5. The hot air blower 1 can be configured at the drying assembly 6 to form a lower-mounted drying assembly, and the guide fan 2 can be correspondingly configured at the main unit 5. Another possible implementation is to interchange the positions of the hot air blower 1 and the guide fan 2, which can also form a drying zone 3 with a circulating air supply channel. In other implementations, this self-circulating drying system can be installed in other equipment requiring hot air drying. Furthermore, the hot air blower 1 and the guide fan 2 can be arranged on a horizontal plane or a non-vertical plane.

[0031] refer to Figures 1-3 This embodiment employs a longitudinally elongated hot air blower 1. Its longitudinal extension expands the hot air delivery range, making it particularly suitable for electric clothes drying racks. Optionally, the hot air blower 1 includes a fan shroud 11, a heating element 12 housed within the fan shroud 11, and a first fan 13. The fan shroud 11 has an upward-facing air outlet 113, and the air inlet 114 of the fan shroud 11 is preferably located at a position not coplanar with the air outlet 113. In this embodiment, the air inlet 114 is located on either side or one side of the longitudinal length of the fan shroud 11. Further, based on the above, the first fan 13 is positioned close to the air inlet 114, and a heating element is provided in the air inlet channel of the hot air blower 1, so that the air flowing through the heating element is heated into hot air and then delivered from the air outlet 113. For ease of assembly, the fan cover 11 can be configured to include an upper cover 111 and a lower cover 112 that overlap each other. The upper cover 111 is provided with an air outlet 113, and the lower cover 112 or an air inlet 114 is provided near the joint line between the upper cover 111 and the lower cover 112. Arranging the air inlet 114 and the air outlet 113 to be non-coplanar helps to increase the air volume of the hot air blower 1 and improve the drying effect.

[0032] In other embodiments, when the hot air blower 1 and the guide fan 2 are not arranged vertically, the air outlet 113 of the hot air blower 1 should face the guide fan 2. Preferably, the air outlet 113 of the hot air blower 1 should face the air inlet 114 of the guide fan 2, so that the guide fan 2 can play a guiding role in open space. The fan shroud 11 of the hot air blower 1 can also adopt an outer contour with other shapes, and the air supply range can be covered by the coordination of spatial positions or the coordination of multiple hot air blowers 1.

[0033] refer to Figure 1 , 24. In this embodiment, the air guide fan 2 includes an air duct component 21 and a second fan 22 housed within the air duct component 21. The air duct component 21 is configured with an air inlet slot 214 and an air outlet slot 215 facing the hot air fan 1. Preferably, the air inlet slot 214 and the air outlet slot 215 can be arranged coplanarly to shorten the turning distance of the air supply channel and reduce heat loss. In one possible embodiment, the air duct component 21 includes a longitudinally elongated base plate 211 and side plates 212 spaced apart on both sides of the longitudinal length of the base plate 211. The gaps between the side plates 212 and the base plate 211 are respectively configured as the air inlet slot 214 and the air outlet slot 215. Furthermore, end plates 213 can be provided at both ends of the longitudinal length of the air duct component 21, and the end plates 213 can be connected to the base plate 211 and the side plates 212 respectively. Thus, the air duct component 21 becomes an integral structure, which is convenient for assembly. The upper ends of the two side plates 212 are not closed, forming assembly slots 216 for inserting the second fan 22. Where space permits, two or more second fans 22 can be arranged along the longitudinal axis of the base plate 211, with the air inlet side aligned with the air inlet slot 214 and the air outlet side aligned with the air outlet slot 215. The hot air delivered by the hot air blower 1 is drawn in through the air inlet slot 214 and blown out through the air outlet slot 215 by the air guide of the second fan 22, so that the hot air is blown back towards the hot air blower 1. The hot air blower 1 can re-draw in the hot air blown out by the guide fan 2 and the surrounding air and heat it, thereby reducing the heating range of the air and achieving the effect of saving energy. Furthermore, the cross-sectional shape of the side plate 212 at the air outlet slot 215 can be optimized to conform to fluid dynamics, reduce wind resistance and noise; movable blades (not shown) can also be installed outside the air inlet slot 214 and / or the air outlet slot 215 to adjust the air direction and better adapt to the size and volume of the items being dried.

[0034] refer to Figures 1-3The hot air blower 1 and the guide fan 2 are arranged along the longitudinal axis of the electric clothes drying rack, so that the drying zone 3 can at least cover the lower projection surface of the main unit 5. As mentioned earlier, the horizontal coverage of the drying zone 3 can be adjusted by setting the swing blades to adjust the air supply width. Furthermore, a connecting rod 4 can be arranged between the hot air blower 1 and the guide fan 2, and the length of the connecting rod 4 can limit the vertical coverage of the drying zone 3. Alternatively, two parallel connecting rods 4 can be arranged to connect the longitudinal end of the hot air blower 1 and the main unit 5 respectively, so that the hot air blower 1 hangs below the main unit 5. In addition, wires can be buried in the connecting rods 4 so that the hot air blower 1 draws power from the main unit 5. Furthermore, if the hot air blower 1 is directly opposite the central axis of the main unit 5, the main unit 5 can be equipped with two mirror-symmetrical guide fans 2, so that the air inlet slot 214 is in the center and the air outlet slots 215 are on both sides. Therefore, the circulating air supply channel of this application is as follows: the hot air starting from the lower hot air blower 1 blows upward, flows from bottom to top through the inner side of the dried object, and then reaches the guide fan 2. The guide fan 2 introduces the hot air from its air inlet slot 214 and blows it downward from its air outlet slot 215, flowing from top to bottom through the outer side of the dried object. The residual hot air and the surrounding air enter the hot air blower 1 from the air inlet 114 located on the side of the hot air blower 1, are heated again, and blown out. The hot air continues to circulate in the above manner, and two circulating air supply channels are formed in the drying zone 3.

[0035] In other embodiments, the hot air blower 1 may be offset below the main unit 5, and / or only one of the guide fan 2 may be used.

[0036] refer to Figure 5In another possible implementation, to meet the drying requirements of difficult-to-dry areas such as collars, cuffs, or armpits, the hot air blower 1 and the guide fan 2 can be improved to form a circulating air supply channel different from the above embodiment. In this embodiment, the guide fan 2 is configured with a dome-shaped profile, positioned at the center of the main unit 5, and a connecting rod 4 extends downward from the center. The hot air blower 1 is connected to the pivot structure 41 at the connecting rod 4, allowing the hot air blower 1 to change the position of the air outlet 113 around the pivot structure 41. When the hot air blower 1 is placed in the lateral direction of the main unit 5, it can blow hot air directly onto the dried items to a greater extent. If the pivot structure 41 is controlled to rotate automatically in one direction, a more uniform drying effect can be obtained. If the pivot structure 41 is controlled to rotate back and forth within a certain angle range, the drying effect of key areas can be enhanced. In this embodiment, the air duct component 21 includes a circular base plate, an inner partition plate extending from the base plate to form an inner ring channel, and an outer partition plate forming an outer ring channel with the inner partition plate. The inner ring channel is configured as an air inlet slot 214, and the outer ring channel is configured as an air outlet slot 215. The second fan 22 is mounted at the center of the base plate. Through the air guiding effect of the second fan 22, the air guide fan 2 enters from the center and exits from the periphery. Specifically, the circulating air supply channel in this embodiment is as follows: hot air from the single-sided hot air blown upwards from the bottom, flows from bottom to top through the dried object, and reaches the guide fan 2. The guide fan 2 introduces hot air from its central air inlet slot 214 and then blows it downwards from its opposite outer ring air outlet slot 215, flowing from top to bottom through the dried object on the opposite side. The residual hot air and the surrounding air enter the hot air blower 1 from the air inlets 114 on both sides of the hot air blower 1 for reheating and then blown out. The hot air blower 1 circulates in the above manner, and forms an internal-external circulating air supply channel in the drying zone 3.

[0037] Furthermore, the connecting rod 4 can be configured as a length-adjustable structure for adjusting the vertical coverage of the drying zone 3. One possible implementation is that the connecting rod 4 includes at least one telescopic segment, and the length of the connecting rod 4 is controlled by controlling the retraction or extension of the telescopic segment. The telescopic segment can be retracted or extended manually or electrically.

[0038] In summary, this application provides a self-circulating drying system, including a hot air blower, a guide fan, and a drying zone formed by the spacing between the hot air blower and the guide fan. The hot air blower and the guide fan mutually guide airflow to form a circulating air supply channel in the drying zone. This self-circulating drying system utilizes the hot air blower and the guide fan to form an open drying zone, facilitating the use of the drying function of the electric clothes dryer. It is easy to use, requires no addition, reduction, or adjustment of the electric clothes dryer's accessories, and can also improve the drying effect to a certain extent.

[0039] In another possible implementation, this application provides a control method for an electric clothes dryer based on the aforementioned self-circulating drying system and an electric clothes dryer equipped with the self-circulating drying system, specifically including the following steps:

[0040] Obtain the current load status of the drying assembly 6 to confirm the status of the drying zone 3;

[0041] The drying mode for the current drying zone 3 is determined based on the selected priority;

[0042] Adjust the working posture of the self-circulating drying system according to the current drying mode;

[0043] Start the self-circulating drying system to execute the current drying mode.

[0044] Regarding the method for confirming the state of the drying zone 3, the drying assembly 6 in this embodiment can be equipped with at least one of the following: a weight detection module, an ultrasonic detection module, a light intensity detection module, an infrared detection module, and a humidity detection module. This allows for the confirmation of the state of the open drying zone 3 through multiple different detection dimensions. The state of the drying zone 3 referred to in this embodiment can be understood as the range and density of the items being dried hanging on the drying assembly 6, as well as the overall humidity of the items themselves. This enables the drying control module to configure a reasonable drying mode based on the state of the drying zone 3. For example:

[0045] a. The extent of the items to be dried on the drying assembly 6 is detected using at least one of the ultrasonic detection module, illuminance detection module, and infrared detection module. Based on the confirmed three-dimensional boundaries of the items, the boundaries of the drying zone 3 are further confirmed according to the range of the circulating air supply channel formed by the self-circulating drying system. Ideally, the items to be dried should completely fall into the drying zone 3. However, when localized drying of a specific area is required, the boundaries of the drying zone 3 can be adjusted by changing the distance between the hot air blower 1 and the guide fan 2, and the direction of the air outlets. In this case, the boundaries of the items to be dried will not completely fall into the drying zone 3.

[0046] b. The density of the clothes being dried on the drying assembly 6 is detected using at least one of the ultrasonic detection module, illuminance detection module, and infrared detection module, providing reference parameters for calculating drying time, configuring the wind speed and / or heating power of the hot air blower 1, and the wind speed of the guide fan 2. To further improve the accuracy of the detected density, at least one of the ultrasonic detection module, illuminance detection module, and infrared detection module can be configured on the connecting rod 4. The connecting rod 4 is positioned closer to the clothes being dried than the drying assembly 6, or the connecting rod 4 is positioned so that the sensing field of the aforementioned sensors can cover the detection area that the sensors on the drying assembly 6 cannot reach.

[0047] c. The humidity of the item being dried is detected using at least one of the ultrasonic detection module, infrared detection module, and humidity detection module, providing reference parameters for calculating drying time, configuring the wind speed and / or heating power of the hot air blower 1, and the wind speed of the guide fan 2. To further improve the accuracy of detecting the humidity of the item being dried, especially the surface humidity, as mentioned above, at least one of the ultrasonic detection module, illuminance detection module, and infrared detection module can be configured on the connecting rod 4.

[0048] d. Estimate the weight of the item in its dry state using at least one of the following modules: weight detection module, ultrasonic detection module, infrared detection module, and humidity detection module. This provides reference parameters for calculating drying time, configuring the airflow speed and / or heating power of hot air blower 1, and the airflow speed of guide fan 2. To further improve the accuracy of estimating the weight of the item in its dry state, an ultrasonic detection module and / or an infrared detection module can be configured on connecting rod 4.

[0049] Regarding the drying mode, based on the configuration of the electric clothes dryer of this application, the drying mode provided by this application is a combination of at least some of the following states:

[0050] a. Spacing between hot air blower 1 and guide fan 2: In this embodiment, hot air blower 1 is positioned below guide fan 2. When hot air blower 1 and guide fan 2 are connected by a telescopic connecting rod 4, the spacing between hot air blower 1 and guide fan 2 is controlled by the total length of the connecting rod 4. The larger the spacing between hot air blower 1 and guide fan 2, the larger the drying zone 3, and the more and larger the items that can be covered for drying. However, the heat loss during a single cycle of hot air is greater, and the concentration of airflow is worse. Maintaining a certain wind speed or heating temperature requires higher energy consumption. Conversely, shortening the spacing between hot air blower 1 and guide fan 2 helps to improve the thermal energy utilization rate of hot air and enables enhanced drying of key areas.

[0051] b. Wind speed and / or heating power of hot air blower 1: The wind speed that hot air blower 1 can produce is related to the blower used. The speed of a specific model of blower has an upper limit. Generally speaking, the higher the performance of the blower, the higher the operating cost. The hot air temperature that hot air blower 1 can produce is related to the heating unit used. The heating power of a specific model of heating unit has an upper limit. Similarly, the higher the performance of the heating unit, the higher the operating cost. In addition, for clothing, different fabrics have different temperature tolerance. The combination of wind speed and temperature can dry the clothes without damaging them, and even achieve the effects of wrinkle removal and sterilization.

[0052] c. Wind speed of the guide fan 2: The wind speed of the guide fan 2 affects the efficiency of hot air circulation. The hot air blown out by the hot air blower 1 is not guided by the guide fan 2 in time after passing through the clothes being dried. The hot air energy will be freely lost near the main unit 5, which is not only a waste of energy, but also has an adverse effect on the main unit 5. High temperature will affect the operation of the motor on the main unit 5 or the sensitivity of various sensors on the main unit 5.

[0053] d. Orientation of the air inlet 114 and air outlet 113 of the hot air blower 1 and / or the air inlet slot 214 and air outlet slot 215 of the guide fan 2: The orientation of the inlet and outlet of the hot air blower 1 and the guide fan 2 can affect the specific implementation of the circulating air supply channel, such as Figure 1 and Figure 3 The illustrated embodiment forms a dual-circulation air supply channel from the inside out, such as... Figure 5 The embodiment shown forms a unidirectional circulating air supply channel from one side to the other. Those skilled in the art can further improve the structure of the guide fan 2 so that the circulating air supply channel can be switched in several ways.

[0054] e. The oscillation range and / or oscillation speed of hot air blower 1: such as Figure 5 As shown, the hot air blower 1 in this embodiment can rotate around the pivot structure 41. When a suitable drive module is configured in the pivot structure 41, the swing range and swing speed of the hot air blower 1 can be controlled so as to realize the function of drying key areas, thereby saving drying energy consumption and drying time.

[0055] Regarding the priorities described in this application, they are mainly based on the drying target of the item being dried, and may include: time priority—completing the drying process in the shortest time, within a specified time period, or before a specified time point; fabric priority—configuring the drying mode parameters with the selected fabric's durability as the upper limit; power priority—configuring the drying mode parameters with the performance limits of the hot air blower 1 and the guide fan 2; and local priority—configuring the drying mode parameters with reference to the state of the designated key drying area 3. As user needs become more diverse, other types of priorities can also be set, preferably forming a drying mode based on a combination of the aforementioned controllable states of the clothes dryer.

[0056] by Figure 5 The control method of the electric clothes drying rack of this application will be further explained using the illustrated embodiment as an example.

[0057] The self-circulating drying system of this application can be controlled by a unified control module of the host 5, or it can be configured with an independent control module. The control module is equipped with a storage module that receives data collected by various sensors, and can use the data in the storage module to calculate and configure control parameters for the self-circulating drying system.

[0058] refer to Figure 6 In one possible implementation, after receiving the drying command, the control module confirms the boundary of the drying zone 3 and the humidity state of the item to be dried based on the current load of the drying assembly 6, and configures a reasonable drying mode and adjusts relevant execution parameters according to the selected priority. Then, the drying command is executed, first adjusting the working posture of the hot air blower 1 and the guide fan 2 to solidify the drying zone 3 and the circulating air supply channel. Those skilled in the art will further understand that the drying zone 3 described in this application refers to the area capable of achieving the wind speed and temperature configured for the current drying mode, and this area also belongs to the core area of ​​the circulating air supply channel.

[0059] Optionally, a drive assembly (not shown) is configured between the connecting rod 4 and the hot air blower 1 to drive the extension and retraction of the connecting rod 4 and the rotation of the hot air blower 1 around the end of the connecting rod 4, respectively. The connecting rod 4 and the pivot structure 41 serve as the moving structures of the self-circulating drying system. The degree of extension of the connecting rod 4 determines the vertical range of the drying zone 3, and the fixed angle of the hot air blower 1 determines the lateral range of the drying zone 3. When the longitudinal axis of the hot air blower 1 is horizontal, the drying zone 3 basically does not exceed the boundary of the upward projection of the far end of the hot air blower 1; when the longitudinal axis of the hot air blower 1 is vertical, the drying zone 3 can exceed the range of the downward projection of the main unit 5 to a limited extent; when the longitudinal axis of the hot air blower 1 is inclined upward relative to the horizontal plane, the drying zone 3 will shrink towards the center position of the connecting rod 4, and conversely, when the longitudinal axis of the hot air blower 1 is inclined downward relative to the horizontal plane, the drying zone 3 will expand outward towards the center position of the connecting rod 4.

[0060] The working posture of the air guide fan 2 can be adjusted in the following ways: In one possible implementation, two or more second fans 22 with adjustable positions or angles can be configured. By adjusting at least one of the speed, direction, shaft position and shaft angle of each second fan 22, the direction or flow rate of hot air can be adjusted to match the air direction of the hot air blower 1 to form a circulating air supply channel that conforms to the current drying mode. In another implementation, as mentioned above, movable blades and / or air duct components 21 are configured to adjust the direction or flow rate of hot air by changing the air duct inside the air guide fan 2.

[0061] Further, after adjusting the working posture of the hot air blower 1 and the guide fan 2 as described above, start the hot air blower 1 and the guide fan 2, and begin the drying timer. Optionally, a basic drying time can be set. After starting the drying timer, count down from the basic drying time; the reciprocal value is the remaining time. When prioritizing time, the predicted drying time can also be used as the current drying time. After starting the drying timer, count down from the current drying time; the reciprocal value is the remaining time. For other priority settings, the timing can be executed as described above when setting the basic drying time.

[0062] The remaining drying time is predicted periodically based on the current state of the item being dried. The current state of the item being dried is detected using various sensors that have been configured as described above. For example, the humidity and / or temperature of the surface of the item being dried are obtained, the current humidity and / or temperature of the area around the item being dried are obtained, the current humidity and / or temperature of the air reaching the outlet of the air guide fan 2 are obtained, the weather data of the day and / or the weather forecast data of the day are obtained. The data obtained by at least one of the above methods is used to assess the current dryness of the item being dried and the time required for continued drying, providing a basis for adjusting the drying mode or the execution parameters of the current drying mode.

[0063] When the predicted remaining drying time is less than the remaining time of the current drying time, based on the principle of conservation, the remaining time should be replaced with the remaining drying time until the next prediction cycle is reached.

[0064] When the predicted remaining drying time exceeds the remaining timer of the current drying time, it's necessary to first determine whether to adjust the current drying mode based on the current priority. One possible implementation is that if the current priority is "fabric priority" or "local priority," the current drying mode or its execution parameters are not adjusted until the next prediction cycle is reached. If the priority is "time priority" or "power priority," the current drying mode or its execution parameters are adjusted so that the predicted remaining drying time in the next prediction cycle is not greater than the remaining timer of the current drying time. This can be understood as accelerating the drying process by adjusting the execution parameters of the drying mode or the current drying mode, aiming to achieve the drying effect when the remaining timer reaches 0. If the drying process is set to switch between two or more priorities, or if the user forcibly switches priorities, the remaining drying time can be predicted after the priority switch but before entering the next prediction cycle to determine whether the remaining timer needs to be replaced.

[0065] When the predicted remaining drying time is equal to the remaining time of the current drying time, the current drying mode is not adjusted until the next prediction cycle is reached.

[0066] When the remaining timer for the current drying time counts down to 0, the hot air blower 1 is turned off, and preferably the guide fan 2 is also turned off to stop the current drying mode. Then, the drive assembly controls the active structure to reset the self-circulating drying system. If the initial state of the self-circulating drying system is that it is stored close to the main unit 5, "reset" means returning the self-circulating drying system to its stored position on the main unit 5; if the initial state of the self-circulating drying system is that it is suspended in a designated position below the main unit 5, "reset" means returning the self-circulating drying system to its initial suspended position. Resetting the self-circulating drying system after the drying command is completed serves two purposes: firstly, it reminds the user that the drying process is finished; secondly, it facilitates the user removing the dried clothes from the drying assembly 6. Those skilled in the art will understand that the steps, measures, and schemes in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, the steps, measures, and schemes in the related technologies that are similar to those in the various operations, methods, and processes disclosed in this application may be alternated, modified, rearranged, decomposed, combined, or deleted.

[0067] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this application and are not intended to indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0068] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0069] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0070] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0071] The above description is only a partial implementation of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. A self-circulating drying system, characterized by, It includes a hot air blower, a guide fan, and a drying zone formed by the spacing between the hot air blower and the guide fan, wherein the hot air blower and the guide fan guide each other to form a circulating air supply channel in the drying zone.

2. The self-circulating drying system of claim 1, wherein, The hot air blower includes a shroud, a heating element housed within the shroud, and a first fan. The shroud is configured with an air outlet facing the guide fan and an air inlet that is not coplanar with the air outlet.

3. The self-circulating drying system of claim 2, wherein, The hood includes an upper hood and a lower hood that overlap each other, and the upper hood is provided with the air outlet.

4. The self-circulating drying system as described in claim 2, characterized in that, The fan cover is connected to the pivot structure, allowing the fan cover to rotate around the pivot structure to change the position of the air outlet.

5. The self-circulating drying system as described in claim 1, characterized in that, The airflow guide fan includes an air duct component and a second fan housed within the air duct component, the air duct component being configured to face the air inlet slot and air outlet slot of the hot air fan.

6. The self-circulating drying system as described in claim 5, characterized in that, The air duct component includes a longitudinally elongated base plate and side plates spaced apart on both sides of the longitudinal length of the base plate. The gaps between the side plates and the base plate are respectively configured as an air inlet slot and an air outlet slot. It also includes end plates disposed at both ends of the longitudinal length of the air duct component, and the end plates are respectively connected to the base plate and the side plates.

7. The self-circulating drying system as described in claim 5, characterized in that, The air duct component includes a circular base plate, an inner partition plate extending from the base plate to form an inner ring channel, and an outer partition plate forming an outer ring channel with the inner partition plate. The inner ring channel is configured as an air inlet slot, and the outer ring channel is configured as an air outlet slot.

8. The self-circulating drying system as described in claim 1, characterized in that, The hot air blower is positioned below the air guide fan.

9. The self-circulating drying system as described in claim 1, characterized in that, A connecting rod is provided between the hot air blower and the guide fan.

10. The self-circulating drying system as described in claim 9, characterized in that, The link includes at least one telescopic segment.

11. An electric clothes drying rack, comprising a main unit and drying components controlled by the main unit, characterized in that, The self-circulating drying system as described in any one of claims 1 to 10 is used, wherein the hot air blower is disposed at the drying assembly and the guide fan is disposed at the main unit.

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