A towel circulating heating system

Abstract

This utility model provides a towel circulating heating system, including a cylinder, a chassis, and a heating component. The cylinder is provided with an equipment chamber and a heating chamber. A hot air circulation channel is formed by a fixed plate. The PTC heating device and the fan work together to make the hot air form a closed-loop convection through the air outlet and the circulation part, so as to achieve uniform heating of the towel. The chassis is provided with a drain hole and an anti-slip support column to effectively discharge condensate and enhance stability. The filter component can adsorb fiber impurities and keep the airflow clean.

Description

Technical Field

[0001] This utility model relates to the field of towel heating, specifically to a towel circulating heating system. Background Technology

[0002] As an essential daily necessity, the drying of towels after use has always been a major concern. When towels are not dried sufficiently and the surrounding temperature is suitable for microbial growth, a large number of microorganisms can easily proliferate on them. This not only results in a greasy feel but may also emit a slight fishy odor, causing discomfort for the user. In daily life, people usually clean towels by hand. While hanging towels to dry after washing can achieve the desired effect, this natural drying method is often slow. With the continuous improvement of living standards, people's demands for convenience and efficiency are also increasing. Against this backdrop, towel heaters specifically designed for bathrooms have gradually appeared on the market. These devices can effectively heat and dry towels quickly, providing a more convenient and efficient towel drying solution and greatly improving the quality of life.

[0003] For example, U.S. Patent No. 17,520,366 describes a method for heating and drying towels by stacking them inside a box and heating them using a heating element.

[0004] However, the above-mentioned patent has certain drawbacks: 1. Since heat is transferred from the side wall of the box to the inside, the towels near the box wall heat up quickly because they are close to the heating source, while the towels in the core area of ​​the box cannot get enough heat, resulting in a significant difference in heating between the inner and outer layers of towels and poor heating uniformity; 2. The heating components on the box wall cannot effectively purify the environment inside the box during use. As the usage time increases, impurities such as fibers shed from the towels and dust settled in the air will accumulate inside the box, which not only affects the heating efficiency but may also adhere to the surface of the towels, posing a hygiene hazard. Summary of the Invention

[0005] This invention provides a towel circulating heating system to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, this utility model adopts the following technical solution: a towel circulating heating system, comprising: a main component, the interior of which is divided by an isolation plate to form a heating chamber with an opening and an equipment chamber for accommodating a heating component, the opening constituting a channel for the object to be heated to enter and exit the heating chamber; a cover component connected to the main component in an openable and closable manner for closing or exposing the opening; the isolation plate is provided with an airflow circulation channel connecting the heating chamber and the equipment chamber, the airflow circulation channel including a blowing channel for introducing hot airflow from the equipment chamber into the heating chamber and a suction channel for guiding airflow from the heating chamber back to the equipment chamber; the heating component includes: a hot air generating end, which is arranged and configured adjacent to the blowing channel to generate a positive airflow, so that the heated airflow enters the heating chamber through the blowing channel to form a hot air curtain; a negative pressure generating end, which is arranged and configured adjacent to the suction channel to generate a reverse airflow, so that the airflow in the heating chamber returns to the equipment chamber through the suction channel to form a circulation loop; wherein, the hot air generating end and the negative pressure generating end work together to establish a continuously circulating closed heat exchange flow field in the heating chamber.

[0007] Beneficial effects: By using a PTC heating device and a fan to heat the towel, hot air is discharged from the air outlet and then drawn back into the conical cylinder through the circulation section. This process of air discharge and re-inhalation creates a convection cycle, allowing heat to be transferred from the heating components to the entire heating space, resulting in a more uniform temperature distribution and more even heating of the towel, thus achieving better heating effect. At the same time, during the towel heating process, a filter plate is installed on the fixed plate, allowing the filter holes to absorb debris such as lint when the air passes through the filter plate, preventing debris from being discharged back onto the fixed plate by the fan, thus purifying the inside of the cylinder. Attached Figure Description

[0008] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0009] Figure 1 This is a schematic diagram of an embodiment provided by this utility model;

[0010] Figure 2 yes Figure 1 A schematic diagram of the bottom structure in the middle;

[0011] Figure 3 yes Figure 1 A three-dimensional sectional view;

[0012] Figure 4 This is a schematic diagram of the conical cylinder and the fixing plate in the embodiment provided by this utility model;

[0013] Figure 5 This is a schematic diagram of the heating component in the embodiment provided by this utility model.

[0014] Figure 6 This is a schematic diagram of the structure of the filter component in the embodiments provided by this utility model;

[0015] Figure 7 This is a schematic diagram of the structure of the conical cylinder, fixing plate, filter assembly and pressure cap in the embodiments provided by this utility model;

[0016] Figure 8 yes Figure 7 An explosion diagram;

[0017] Figure 9 This is an exploded view of the chassis and bottom plate in the embodiment provided by this utility model;

[0018] Figure 10 yes Figure 9 Another perspective illustration;

[0019] Figure 11 This is a schematic diagram of the circulating airflow in the embodiment provided by this utility model.

[0020] Reference numerals: Main body assembly (A); Cover assembly (B); Isolation plate (E); Heating chamber (D); Equipment chamber (C); Gas flow direction (F); Air blowing channel (H); Air suction channel (G); Chassis (110); Support column (111); Base plate (112); Drain hole (113); Cylinder (120); Cover (130); Conical cylinder (141); Fixing plate (142); Circulation part (143); Air outlet (144); PTC heating device (210); Fan (220); Ventilation duct (230); Filter assembly (300); Filter plate (310); Filter hole (311); Pressure cap (400); Support bar (410). Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is illustrative in nature and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] 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. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, 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 exemplary rather than limiting. 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.

[0024] A towel circulation heating system includes a main component.

[0025] In this implementation, such as Figure 1 As shown, the main component is configured as a cylinder 120, and a chassis 110 is provided at the bottom of the cylinder.

[0026] In other embodiments, the cylinder 120 and the chassis 110 can be integrated; the integrated structure eliminates weak points in the connection between the cylinder and the chassis, avoiding problems caused by loosening or fatigue at the connection; in other embodiments, the cylinder 120 and the chassis 110 can be connected by snaps or screws, allowing the cylinder 120 and the chassis 110 to be disassembled from each other. Whether using snaps or screws, the cylinder 120 and the chassis 110 can be easily disassembled from each other, providing convenient conditions for equipment maintenance, repair, or replacement of parts, and also facilitating flexible adjustment and reassembly when the relative positions of the cylinder 120 and the chassis 110 need to be adjusted.

[0027] In other embodiments (not shown in the figures), a controller is provided inside the cylinder 120, with a charging port extending to the outside at one end of the controller, and control buttons are provided on the surface of the chassis 110 for easy user control of the device. Meanwhile, a display is provided on the chassis 110 or the cover 130 for real-time monitoring of the internal temperature.

[0028] In other embodiments, such as Figure 9 and Figure 10 As shown, the chassis 110 is hollow in the middle, and a base plate 112 is provided in the center of the chassis 110. Several drainage holes 113 are formed on the surface of the base plate 112; simultaneously, as... Figure 3 As shown, the bottom center of the cylinder 120 is recessed and has multiple openings. This recessed design creates a height difference between the bottom and the opposite side of the cylinder 120, allowing liquid water to drain through the openings and finally through the drain hole 113, preventing liquid water accumulation inside the heating cylinder 100. Simultaneously, when the temperature inside the heating cylinder 100 rises due to the operation of the heating components, leading to an increase in air pressure, the drain hole 113 not only effectively drains condensate but also cleverly serves as an exhaust vent. This design cleverly utilizes the dual function of the drain hole, ensuring safe operation of the equipment while further enhancing its stability and reliability.

[0029] In other embodiments, such as Figure 9 and Figure 10 As shown, the base plate 112 can be movably installed on the chassis 110 by means of thread or snap connection. At the same time, the base plate 112 is provided with a knob so that the user can remove the base plate 112 more easily.

[0030] In other embodiments, the drainage holes 113 on the base plate 211 are arranged in a circular array. Besides this, the layout of the drainage holes 113 can have many other creative options. For example, the drainage holes 113 can be arranged in a spiral pattern from the center outwards, forming a spiral distribution, or the drainage holes 113 can be arranged radially from the center outwards, forming a distribution similar to sunlight rays. The distribution of the drainage holes can also adopt conventional distribution methods, such as matrix arrangement or uniform distribution, as long as the purpose of drainage is achieved.

[0031] In other embodiments, the chassis 110 and the base plate 211 are connected in a detachable manner. When the base plate 211 needs maintenance and cleaning, workers can quickly remove the base plate 211 from the chassis 110, facilitating maintenance and cleaning and improving efficiency. The base plate 211 and the chassis 110 can be detached and connected by clips or screws.

[0032] In other embodiments, such as Figure 2 As shown, multiple support columns 111 are fixedly installed in a circular array at the bottom of the chassis 110. By setting the support columns, the drain hole 113 is kept at a certain distance from the bottom surface. When the drain hole 113 is kept at a certain distance from the bottom surface, the water can flow out more smoothly from the drain hole, avoiding the problem of poor drainage that may be caused by the drain hole 113 being close to the bottom surface.

[0033] In other embodiments, such as Figure 2 As shown, at least one support column 111 can be designed as a square structure, thereby significantly increasing its contact area with the ground. This design not only enhances the stability of the device but also effectively improves its anti-slip performance. During device operation, the square support column 111 can better distribute pressure, ensuring a firm contact between the device and the ground, thus avoiding tipping problems caused by slippery ground or device vibration, and providing a reliable guarantee for the smooth operation of the equipment. Meanwhile, the support column 111 can be made of anti-slip materials such as rubber.

[0034] In this embodiment, a cover assembly is included that is closably connected to the main body assembly for closing or exposing the opening. Wherein, such as Figure 1 As shown, the cover assembly is configured as cover 130.

[0035] In other embodiments (not shown in the figures), a sealing ring is provided at the connection between the cover 130 and the cylinder 120, which can enhance the airtightness of the cover 130 and the cylinder 120.

[0036] In other embodiments (not shown in the figures), a storage frame is provided on the inner top wall of the cover 130. Scented paper can be placed inside the storage frame, allowing the heating cylinder 100 to release the fragrance of the scented paper while heating the towel, thus perfuming the towel during the heating process and enhancing the user experience. Simultaneously, the storage frame can be detachably installed on the cover 130 via threads or clips, and a handle is hinged to the bottom of the storage frame, allowing the user to frequently remove the storage frame to replace the scented paper inside. In other embodiments, the storage frame can be fixedly installed on the cover 130, and a cover plate is threaded onto the surface of the cover 130, allowing the user to replace the scented paper inside the storage frame by unscrewing the cover plate.

[0037] In other embodiments (not shown in the figure), an ultraviolet disinfection lamp assembly is provided on the inner top wall of the cover 130. The ultraviolet disinfection lamp can effectively kill various bacteria, viruses, fungi and other microorganisms that may exist on the towel. It has high sterilization efficiency and can deeply disinfect the towel in a short time. Compared with the traditional method of drying by heating alone, it is more thorough and comprehensive in terms of disinfection, providing users with more hygienic and healthy towels and reducing the risk of skin infections, respiratory infections and other diseases caused by using insufficiently disinfected towels.

[0038] In this embodiment, the interior of the main component is divided by an isolation plate to form a heating chamber with an opening and a device chamber that houses the heating component. The opening constitutes a channel for the object to be heated to enter and exit the heating chamber. The isolation plate is provided with an airflow circulation channel connecting the heating chamber and the device chamber. This airflow circulation channel includes a blowing channel that guides the hot airflow from the device chamber into the heating chamber and a suction channel that guides the airflow from the heating chamber back to the device chamber. For example, Figure 3 As shown, the heating chamber is configured as a conical cylinder 141, which is inverted and disposed within the main body assembly. Figure 4 As shown, the partition plate is configured as a fixing plate 142, which is disposed on the top of the conical cylinder 141. Figure 4 As shown, the air outlet is configured as an air outlet 144, which is located on the fixed plate 142. Simultaneously, the air intake is configured as a circulation section 143, which is recessed into the fixed plate 142. The air outlet 144 and the circulation section 143 are located at opposite ends of the surface of the fixed plate 142. Figure 11 As shown, when the heating element starts to operate, the hot airflow is discharged from the air outlet 144, and the airflow is drawn back into the interior of the cone 141 through the circulation section 143. Through this process of airflow discharge and re-inhalation, a convection cycle is formed, and heat can be transferred from the heating element to the entire heating space, making the temperature distribution more uniform and facilitating uniform heating of the towel.

[0039] In other embodiments, such as Figure 4 As shown, the circulation section 143 features a semi-annular porous design, with the porous structure comprising 3-5 groups of concentric arc-shaped holes, each group containing 8-12 equidistantly distributed circular holes. The overall semi-annular shape of the circulation section 143 effectively guides the airflow direction. This semi-annular shape efficiently directs airflow from one side to the other, forming a semi-closed circulation path. Simultaneously, the equidistantly distributed circular holes in the circulation section 143 ensure uniform airflow between each hole, preventing excessively strong or weak local airflow.

[0040] In other embodiments, the conical cylinder 141 and the cylinder body 120 can be integrally formed or detachably connected. A detachable connection allows the conical cylinder 141 and the cylinder body 120 to be separated, facilitating cleaning of the interiors and joints of both components. The conical cylinder 141 and the cylinder body 120 can be disassembled using clips or screws. An integral form provides higher structural strength and stability. Because the conical cylinder 141 and the cylinder body 120 are manufactured as a single unit, there are no weak points at the joints, enabling them to better withstand various external forces, such as pressure, tension, or torque.

[0041] In other embodiments (not shown in the figures), magnetic components can be provided on the conical cylinder 141 or the fixed plate 142 to achieve quick installation and fixation of the conical cylinder 141 and the fixed plate 142 using magnetic attraction. This magnetic installation method is very convenient, especially when the fixed plate 142 needs to be replaced frequently, thus improving replacement efficiency.

[0042] In other embodiments (not shown in the figures), a rubber material with a certain degree of elasticity may be used at the root of the conical cylinder 141 to ensure a good seal with the side wall of the cylinder 120.

[0043] In this embodiment, the heating component includes a hot air generating end, which is arranged and configured adjacent to the air blowing channel to generate a positive airflow, so that the heated airflow enters the heating chamber through the air blowing channel to form a hot air curtain; and a negative pressure generating end, which is arranged and configured adjacent to the air suction channel to generate a reverse airflow, so that the airflow in the heating chamber returns to the equipment chamber through the air suction channel to form a circulation loop; the hot air generating end and the negative pressure generating end work together to establish a continuously circulating closed heat exchange flow field in the heating chamber.

[0044] Among them, such as Figure 3 and Figure 5 As shown, the hot air generating end is configured as a PTC heating device 210, and a ventilation duct 230 is fixedly installed on the outer surface of the PTC heating device 210. One end of the ventilation duct 230 is connected to the air outlet 144. The negative pressure generating end is configured as a fan 220, and the output end of the fan 220 is connected to the end of the ventilation duct 230 away from the air outlet 144. Figure 11 As shown, when the PTC heating device 210 starts operating, it heats the air inside the cylinder 120. At this time, the fan 220 starts, which discharges the hot airflow through the air outlet 144 to the top of the fixed plate 142. Simultaneously, some of the hot airflow returns to the bottom of the cylinder 120 through the circulation section 143 under the action of the fan. During this process, the PTC heating device 210 continuously heats the air, and combined with the airflow driven by the fan 220, effective air convection is formed inside the cylinder 120. This air convection ensures that the towel is heated evenly, thus achieving a better heating effect.

[0045] In other embodiments (not shown in the figure), only the PTC heating device 210 can be provided. When the PTC heating device 210 starts to operate, it heats the air inside the cylinder 120. The hot airflow is discharged above the fixed plate 142 through the air outlet 144, thereby forming a hot air curtain. The hot air curtain creates a temperature difference between the upper and lower sides of the fixed plate 142 and generates a circulating airflow, thereby achieving the effect of air convection.

[0046] The PTC heating device 210 is a device that uses the properties of positive temperature coefficient thermistor material to achieve heating and temperature control. The resistance value of the thermistor material increases significantly with the increase of temperature. When the temperature reaches the set threshold (i.e., Curie temperature), the resistance rises sharply and the current decreases automatically, thereby achieving self-temperature control and overheat protection. This gives the PTC heating device 210 self-temperature control characteristics and high safety.

[0047] In other embodiments (not shown in the figures), a booster column is fixedly installed at the bottom of the fan 220, allowing the fan 220 to be moved away from the bottom surface of the cylinder 120. After use, towels typically retain some moisture. When a wet towel is placed in the cylinder 120 for heating, the moisture in the towel evaporates due to the heat. When the water vapor encounters a cooler surface inside the cylinder 120 (such as the inner wall or base of the cylinder 120), it condenses into liquid water. The inclined arrangement of the conical cylinder 141 causes the liquid water entering the conical cylinder 141 to move downwards along the inner wall of the conical cylinder 141, allowing the liquid water to concentrate at the lowest point of the conical cylinder 141. The booster column increases the height of the fan 220, preventing direct contact between the liquid and the fan 220, thus protecting the fan 220 from liquid corrosion.

[0048] In this embodiment, as Figure 7 As shown, a filter assembly 300 is disposed above the fixed plate 142, and the filter assembly 300 includes a filter plate 310, as shown. Figure 7 and Figure 8 As shown, the filter plate 310 is fixedly installed above the fixing plate 142, as... Figure 6 and Figure 8 As shown, filter plates 310 are provided with filter holes 311 above the circulation section 143 and the air outlet 144. During the heating of the towel, by setting filter plates 310 on the fixed plate 142, when the airflow passes through the filter plates 310, the filter holes 320 can adsorb debris such as lint, preventing the debris from being discharged back to the fixed plate 142 by the fan 220, thereby purifying the inside of the cylinder 120.

[0049] In other embodiments (not shown in the figures), the filter assembly 300 can be a filter section, mainly filling the circulation section 143, thereby filtering and protecting the circulation section, and thus enabling the filtration of water droplet-like debris; in other embodiments, the filter section can be composed of filter sheets or activated carbon.

[0050] In other embodiments (not shown in the figures), a raised magnetic component can be provided on the fixing plate 142 to achieve quick installation and fixation of the fixing plate 142 and the filter plate 310 using magnetic attraction. This magnetic installation method is very convenient, especially when the filter plate 310 needs to be replaced frequently, thus improving replacement efficiency.

[0051] In other embodiments, such as Figure 7As shown, a pressure cap 400 is provided above the filter plate 310. In this device, a towel can be placed on the pressure cap 400. The pressure cap 400 also helps prevent debris such as loose threads from entering the heating element 200 under the influence of airflow, further ensuring the normal operation and service life of the heating element. Simultaneously, the open structure helps optimize the airflow distribution inside the heating cylinder 100. When the heating element 200 is running, hot air is discharged from the air outlet 144 and circulates inside the heating cylinder 100. The center of the pressure cap 400 has an open structure, allowing airflow to pass smoothly and preventing airflow obstruction due to the complete closure of the pressure cap 400. This design ensures that the airflow is evenly distributed inside the heating cylinder 100, thereby improving heating efficiency and uniformity. Furthermore, the surface of the pressure cap 400 can be made perforated, allowing heat to directly act on the towel, enabling the towel to dry quickly.

[0052] In other embodiments, such as Figure 7 As shown, protruding strips are provided at both the edge of the pressure cap 400 and the edge of the central opening. The protruding strips form a "fence" at the edge of the pressure cap 400 and the edge of the central opening, which restricts the movement range of the towel and prevents the towel from shifting due to airflow or vibration during heating. This ensures that the towel can be placed flat on the pressure cap 400, thereby improving heating efficiency and uniformity.

[0053] In other embodiments, such as Figure 7 and Figure 8 As shown, a support strip 410 is provided at the bottom of the pressure cap 400, and several protruding feet are provided on the support strip 410. These protruding feet are evenly distributed and steadily support the pressure cap 400, so that a certain gap is maintained between the pressure cap 400 and the filter plate 310, providing space for smooth airflow circulation.

[0054] In other embodiments (not shown in the figure), a pressure mesh can be placed on the pressure cover 400, and a towel can be placed inside the pressure mesh. This design can not only effectively fix the position of the towel, but also prevent the towel from shifting or contacting the heating components during the heating process, thereby improving the safety and uniformity of heating.

[0055] In other embodiments (not shown in the figures), a second fixing plate 142 and a second heating component are provided on the cover 130, with the air outlet 144 on the second fixing plate 142 facing downwards. The two heating components operate simultaneously, enabling faster heating of the towel to the desired temperature and ensuring a more uniform temperature distribution inside the cylinder 120, avoiding localized overheating or underheating. Simultaneously, a remote control module can be provided on the heating components, allowing users to remotely control them using tools such as mobile phones, enabling the two heating components to be used for different heating modes. For example, one heating component can be used for rapid heating, while the other can be used for constant temperature maintenance. This design can also be flexibly adjusted according to user needs; for example, both heating components can be activated when rapid drying is required, while only one needs to be activated for energy-saving operation.

[0056] In this embodiment, the cylinder 120 is made of rubber, which gives it good flexibility and deformability, making it easy to fold after use, greatly saving storage space and making it convenient for users to organize and store.

[0057] In other embodiments (not shown in the figures), two or more cylinders 120 may be provided, and the multiple cylinders 120 may be connected by snap-fit ​​or thread, so that the device can adjust the internal accommodating space of the cylinders 120 according to the customer's needs.

[0058] In other embodiments (not shown in the figure), the cylinder 120 can be configured as multiple cylinders, with adjacent cylinders connected by snaps or threads. This design allows the device to be flexibly configured according to the user's needs. For example, the user can select one cylinder for small-capacity heating or connect multiple cylinders together to increase the capacity.

[0059] In other embodiments, this product is not limited to drying towels, but can also be applied to other products that need drying, such as baby bottles, clothing, shoes and other products.

[0060] In summary, as can be seen from the above description, this utility model achieves the following technical effects: By using a PTC heating device 210 and a fan 220 to heat the towel, the hot airflow is discharged from the air outlet 144, and the airflow is drawn back into the conical cylinder 141 through the circulation part 143; through this airflow discharge and re-inhalation process, a convection cycle is formed, and heat can be transferred from the heating component 200 to the entire heating space, making the temperature distribution more uniform, which facilitates uniform heating of the towel and thus achieves a better heating effect; at the same time, during the towel heating process, by setting a filter plate 310 on the fixed plate 142, when the airflow passes through the filter plate 310, the filter holes 320 can adsorb debris such as lint, preventing debris from being discharged back to the top of the fixed plate 142 by the fan 220, thereby purifying the inside of the cylinder 120.

[0061] In the description of this utility model, it should be understood that 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 utility model 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 utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0062] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0063] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0064] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A towel circulating heating system characterized by, include: The main component is divided by a partition plate to form a heating chamber with an opening and an equipment chamber that contains the heating components. The opening forms a channel for the object to be heated to enter and exit the heating chamber. A cover assembly that can be opened and closed to the main body assembly for closing or exposing the opening; The isolation plate is provided with an airflow circulation channel connecting the heating chamber and the equipment chamber. The airflow circulation channel includes a blowing channel that introduces the hot airflow from the equipment chamber into the heating chamber and a suction channel that guides the airflow from the heating chamber back to the equipment chamber. The heating assembly includes: a hot air generating end, which is arranged and configured to generate a positive airflow adjacent to the air blowing channel, so that the heated airflow enters the heating chamber through the air blowing channel to form a hot air curtain; and a negative pressure generating end, which is arranged and configured to generate a reverse airflow adjacent to the air suction channel, so that the airflow in the heating chamber returns to the equipment chamber through the air suction channel to form a circulation loop. The hot air generating end and the negative pressure generating end work together to establish a continuously circulating closed heat exchange flow field in the heating chamber.

2. The towel circulating heating system of claim 1, wherein: The equipment chamber includes a conical cylinder (141), which is inverted and located inside the main component.

3. The towel circulating heating system of claim 2, wherein: The isolation plate includes a fixing plate (142), which is disposed on the top of the conical cylinder (141).

4. The towel circulating heating system according to claim 3, characterized in that: The air duct includes an air outlet (144), which is located on the fixed plate (142).

5. The towel circulating heating system of claim 4, wherein: The air intake channel includes a circulation section (143), which is recessed on the fixed plate (142), and the air outlet (144) and the circulation section (143) are respectively located at both ends of the surface of the fixed plate (142); The circulation section (143) has a semi-annular porous structure. The porous structure of the circulation section (143) includes 3-5 groups of holes arranged in concentric arcs, and each group of holes contains 8-12 equally spaced circular holes.

6. The towel circulating heating system of claim 4, wherein: The hot air generating end includes a PTC heating device (210), which is located below the air outlet (144).

7. The towel circulating heating system of claim 6, wherein: A ventilation duct (230) is fixedly installed on the outer surface of the PTC heating device (210), and one end of the ventilation duct (230) is connected to the air outlet (144).

8. The towel circulating heating system of claim 7, wherein: The negative pressure generating end includes a fan (220), and the output end of the fan (220) is connected to the end of the ventilation duct (230) away from the air outlet (144).

9. The towel circulating heating system of claim 3, wherein: A filter assembly (300) is provided above the fixed plate (142); The filter assembly (300) includes a filter plate (310), which is positioned above the fixed plate (142). Multiple filter holes (311) are provided on the filter plate (310) and directly above the circulation section (143) and the air outlet (144).

10. The towel circulating heating system of claim 9, wherein: A pressure cap (400) is provided on the top of the filter plate (310).

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