Heating device and laundry treatment apparatus

Abstract

The application discloses a heating device and a clothes processing apparatus. The heating device comprises a heat conducting member and a heating assembly. The heat conducting member is formed with an air passing channel. The heating assembly comprises a heat exchanging member and a heating member. The heat exchanging member is in heat transfer connection with the heat conducting member. The heat exchanging member has a heating cavity. The heating cavity has a liquid inlet for liquid to enter and a steam outlet for steam to flow out. The heating member is connected to a wall of the heating cavity and is at least partially arranged in the heating cavity. The heating member is used for heating the liquid in the heating cavity and transferring heat to the heat conducting member to heat the air flow passing through the air passing channel. The application integrates the auxiliary heating function and the steam care function in one heating device to save the internal space of the clothes processing apparatus and save the production manufacturing cost.

Description

Technical Field

[0001] This application relates to the field of clothing processing equipment technology, and in particular to a heating device and clothing processing equipment. Background Technology

[0002] With the continuous advancement of technology, clothing processing equipment such as washing machines, washer-dryer combos, and dryers are becoming increasingly feature-rich. Taking dryers as an example, they not only have drying functions but also steam care functions. In addition, to improve drying efficiency, they are usually equipped with auxiliary heating functions, which means that heat is transferred to the clothing processing drum through heating elements.

[0003] In related technologies, most clothes dryers use independently set steam generating devices and auxiliary heating devices to achieve steam care and auxiliary heating functions. However, this design has the following problems: on the one hand, because the two independent devices have many components, they occupy a lot of internal space in the dryer, resulting in an increase in the overall size of the machine and wasting space; on the other hand, the complex structure makes the connection between parts complicated, increasing the manufacturing cost. Utility Model Content

[0004] This application provides a heating device and a garment processing equipment that integrates auxiliary heating and steam care functions into one heating device to save internal space and reduce manufacturing costs.

[0005] To achieve the above objectives, a first aspect of this application provides a heating device, comprising: A heat-conducting component, wherein the heat-conducting component forms an airflow channel; and Heating components, including: A heat exchanger is connected to the heat-conducting component for heat transfer. The heat exchanger has a heating chamber with a liquid inlet for liquid to enter and a steam outlet for steam to flow out. A heating element, connected to the wall of the heating chamber and at least partially disposed within the heating chamber, is used to heat the liquid within the heating chamber and to transfer heat to the heat-conducting element to heat the airflow passing through the air passage.

[0006] In some embodiments, the heating element and the heat-conducting element are respectively connected to the inner and outer sides of at least one wall of the heating cavity.

[0007] In some embodiments, two heating elements and two heat-conducting elements are provided. The two heating elements are respectively provided on the two inner walls opposite to each other of the heating cavity, and the two heat-conducting elements are respectively provided on the two outer walls opposite to each other of the heating cavity.

[0008] In some embodiments, the heat exchanger is elongated, the heating chamber extends along the length of the heat exchanger, and the liquid inlet is located at one end of the heat exchanger, while the steam outlet is located at the other end of the heat exchanger.

[0009] In some embodiments, the heating element is fitted to the inner wall of the heat exchanger and extends along the length of the heat exchanger.

[0010] In some embodiments, the heat exchanger includes: The main body has the heating cavity formed thereon; and An end cap is provided over the opening of the heating chamber, and the end cap is provided with a wire passage hole for wiring the heating element; The heating element is detachably connected to the main body.

[0011] In some embodiments, the heat exchange component and the heating component are an integral structure; And / or, the heat exchange component and the heat conduction component are an integral structure.

[0012] In some embodiments, the heat-conducting element includes: Multiple fins are interconnected to form a plate structure with multiple holes, and the multiple holes form the air passage.

[0013] In some embodiments, the heating element includes one of a PTC heating element and a heating tube.

[0014] In some embodiments, the heating device further includes: The bracket has a mounting cavity for mounting the heat-conducting element and the heating assembly; The bracket is provided with a limiting member to confine the heat-conducting member and the heating assembly within the mounting cavity.

[0015] In some embodiments, at least one side of the bracket has an airflow channel through which airflow passes.

[0016] In some embodiments, a pressure relief valve is provided at the liquid inlet and / or the steam outlet.

[0017] In some embodiments, the heating device is applied to a garment processing device having an air duct for drying garments, and the heating device is disposed within the air duct.

[0018] A second aspect of this application provides a garment processing device, characterized in that it includes: The housing assembly is equipped with air ducts; A garment handling drum, installed within the housing assembly and connected to the air duct; and In the heating device described above, the steam outlet is connected to the clothing processing drum, and the heat-conducting element is located inside the air duct.

[0019] In the heating device provided in this application embodiment, at least a portion of the heating element is disposed in the heating chamber, directly heating the liquid in the heating chamber. After the liquid enters the heating chamber from the liquid inlet, the temperature continuously rises under the continuous heating of the heating element until steam is formed. The steam is discharged to the clothes treatment drum through the steam outlet to perform steam care on the clothes in the drum. At the same time, since the heating element is connected to the wall of the heating chamber, a portion of the heat generated by the heating element is transferred to the air passage of the heat conduction element through the heat exchange element, so that the airflow flowing through the air passage is heated, realizing the function of auxiliary heating for drying.

[0020] This application integrates auxiliary heating and steam generation functions into the heating device. On the one hand, it avoids the space-consuming problems caused by separately setting up auxiliary heating and steam generation devices in traditional designs, making the internal structure of the equipment more compact. On the other hand, it reduces the number of parts and the complex connection structure, thereby reducing production difficulty and cost. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the heating device provided in the embodiments of this application; Figure 2 This is a partial structural schematic diagram of the heating device provided in the embodiments of this application; Figure 3 A schematic diagram of the internal structure of the heat-conducting component and heating assembly provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the heat-conducting component provided in the embodiments of this application; Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0023] Explanation of icon numbers: 10. Heat-conducting component; 101. Air passage; 102. Hole; 11. Fin; 20. Heating assembly; 21. Heat exchanger; 2101. Heating chamber; 2102. Liquid inlet; 2103. Steam outlet; 211. Main body; 212. End cap; 22. Heating component; 30. Bracket; 301. Mounting cavity; 31. Outer frame; 3101. Airflow passage; 311. Guide component; 312. Limiting component; 313. Snap-fit ​​component; 32. Mounting plate; 40. Water inlet pipe; 50. Steam pipe; 60. Water pump; 70. Pressure relief valve.

[0024] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] 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.

[0026] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0027] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] This application provides a heating device and a clothing treatment equipment to solve the problems of space waste and increased cost caused by the separate setting of auxiliary heating and steam care functions in existing dryers.

[0031] The clothing processing equipment in this embodiment can be a dryer, washing machine, washer-dryer combo, garment care machine, etc. The following will take a dryer as an example to describe the clothing processing equipment in detail.

[0032] Specifically, please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the heating device provided in the embodiments of this application; Figure 2 This is a partial structural schematic diagram of the heating device provided in the embodiments of this application; Figure 3 This is a schematic diagram of the internal structure of the heat-conducting component and heating assembly provided in the embodiments of this application.

[0033] The clothing processing device of this embodiment includes a housing assembly, a clothing processing drum, and a heating device. The housing assembly serves as the basic frame of the dryer, providing stable support and safety protection for the internal components. Exemplarily, the housing assembly includes a support frame and an outer shell connected to the support frame, which together form an air duct for drying clothes. Taking a heat pump dryer as an example, the air duct is the key path for heat transfer. A heat pump assembly, including a compressor and a condenser, is installed inside the air duct. The compressor compresses the low-temperature, low-pressure refrigerant into a high-temperature, high-pressure gas, which is then sent to the condenser. Inside the condenser, the high-temperature, high-pressure refrigerant gas exchanges heat with the air in the air duct, releasing a large amount of heat and raising the temperature of the airflow within the air duct. The high-temperature airflow is then transported along the air duct to the clothing processing drum to dry the clothes.

[0034] To ensure that clothes can fully contact the hot airflow and achieve efficient drying, the clothes handling drum in this embodiment is rotatably installed inside the housing assembly and connected to the air duct. The clothes handling drum can be made of stainless steel, giving it high strength and good corrosion resistance, and enabling it to withstand the strong centrifugal force generated during high-speed rotation, ensuring the stability and safety of the equipment operation.

[0035] The clothes handling drum has a forward-opening loading and unloading port for easy loading and unloading of clothes. During the drying process, the clothes handling drum rotates under the drive of a motor, lifting the clothes from the bottom to the top of the drum, and then allowing them to fall freely to the bottom under gravity. Through this continuous cycle, the clothes are fully dispersed and agitated inside the drum, constantly changing their posture, ensuring that all parts of the clothes come into full contact with the high-temperature airflow flowing in from the air duct, effectively improving the uniformity and efficiency of drying. In this embodiment, the clothes handling drum is a hollow cylinder, with its rear side connected to the air duct.

[0036] The heating device of this application is installed in the air duct, specifically on the air inlet side or air outlet side of the condenser.

[0037] The heating device includes a heating component 20 and a heat-conducting element 10. The heating component 20 includes a heat exchanger 21 and a heating element 22. The heat exchanger 21 can be made of cast aluminum, stainless steel, etc., and forms a heating chamber 2101. The heating chamber 2101 has a liquid inlet 2102 for liquids (such as water, aromatherapy agents, etc.) to enter and a steam outlet 2103 for steam to flow out. The heating element 22 is connected to the wall of the heating chamber 2101 and is at least partially disposed within the heating chamber 2101. Exemplarily, the heating element 22 is detachably installed on the inner wall of the heating chamber 2101, or the heating element 22 and the heat exchanger 21 are an integral structure (such as integrally formed by die casting) and are at least partially exposed within the heating chamber 2101. Part of the heat generated by the heating element 22 directly acts on the liquid in the heating chamber 2101 to generate steam; the other part is transferred to the heat-conducting element 10 through the heat exchanger 21 to heat the airflow flowing through the air passage 101. During the drying process of the dryer, the airflow initially heated by the heat pump component is heated a second time by the heat-conducting component 10 when it flows through the air channel, thus realizing the auxiliary heating function for drying; when performing steam treatment, the heating component 22 directly heats the liquid in the heating chamber 2101, causing the liquid in the heating chamber 2101 to form steam.

[0038] In some embodiments, one end of the heating element 22 is connected to a conductive wire. When current passes through the conductive wire through the heating element 22, the heating element 22 rapidly heats up, transferring heat to the heating chamber 2101, thereby raising the temperature of the liquid inside the heating chamber 2101. As the temperature continues to rise, the liquid reaches its boiling point and begins to vaporize, forming steam.

[0039] The heating element 22 includes one of a PTC heating element and a heating tube.

[0040] A PTC (Positive Temperature Coefficient) heating element is a thermistor material with a positive temperature coefficient. It has the characteristic of automatic temperature control. When the temperature rises to a certain level, its resistance value will increase sharply, thereby limiting the current and keeping the temperature of the heating element within a relatively stable range.

[0041] A heating element typically consists of a resistance layer and an insulating sleeve. When current passes through the resistance layer, the layer generates heat, which is then transferred to the surrounding liquid through the insulating sleeve.

[0042] In this embodiment, the heat-conducting component 10 is a component with an air passage 101 and is heat-transferringly connected to the heat exchanger 21. There are various ways to connect the heat-conducting component 10 and the heat exchanger 21, such as direct contact or connection via a heat-conducting material. Direct contact involves directly attaching the heat-conducting component 10 to the heat exchanger 21, allowing heat to be directly transferred from the heat exchanger 21 to the heat-conducting component 10; this method has high heat transfer efficiency. Connection via a heat-conducting material involves filling the space between the heat-conducting component 10 and the heat exchanger 21 with heat-conducting silicone, heat-conducting paste, or other heat-conducting materials. These materials can effectively conduct heat and also act as a buffer.

[0043] In the heating device of this application, after the liquid enters the heating chamber 2101 through the liquid inlet 2102, its temperature rises continuously under the continuous heating of the heating element 22 until steam is formed. The steam is discharged through the steam outlet 2103. The steam outlet 2103 can be connected to a dedicated pipe to guide the steam into the clothes processing drum. After the steam enters the clothes processing drum, it can perform steam care on the clothes inside, such as removing wrinkles, killing bacteria, and giving the clothes fragrance. At the same time, the heat-conducting element 10 transfers a portion of the heat generated by the heating element 22 to the air passage 101, so that the airflow passing through the air passage 101 is heated, realizing the function of auxiliary heating for drying.

[0044] This application integrates auxiliary heating and steam generation functions into the heating device. On the one hand, it avoids the space-consuming problems caused by separately setting up auxiliary heating and steam generation devices in traditional designs, making the internal structure of the equipment more compact. On the other hand, it reduces the number of parts and the complex connection structure, thereby reducing production difficulty and cost.

[0045] In some embodiments, such as Figure 3As shown, the heating element 22 and the heat-conducting element 10 are respectively connected to the inner and outer sides of at least one wall of the heating cavity 2101. Specifically, the heating element 22 is located on the inner side of the wall of the heating cavity 2101, and the heat-conducting element 10 is located on the outer side of the corresponding wall. This arrangement allows the heating element 22 to directly contact the liquid in the heating cavity 2101, resulting in higher heating efficiency and rapid vaporization to generate steam. At the same time, the heat-conducting element 10 on the outer side of the wall can absorb the heat transferred by the wall in a timely manner, heating the airflow passing through the air passage 101.

[0046] Furthermore, in some embodiments, two heating elements 22 and two heat-conducting elements 10 are provided. The two heating elements 22 are respectively disposed on the two opposite inner walls of the heating cavity 2101, and the two heat-conducting elements 10 are respectively disposed on the two opposite outer walls of the heating cavity 2101. This symmetrical arrangement ensures that both sides of the heating cavity 2101 are heated evenly, resulting in a more uniform temperature distribution of the liquid within the heating cavity 2101 and more stable steam generation. Simultaneously, the two heat-conducting elements 10 heat the airflow on the opposite outer walls of the heating cavity 2101, allowing the airflow in the duct to be heated from both sides simultaneously, thus improving heating efficiency. In addition, the symmetrical design also makes the walls of the heating cavity 2101 more evenly stressed, reducing the risk of deformation due to unilateral thermal expansion and enhancing the structural stability of the heating cavity 2101.

[0047] In the operating environment of a clothes dryer, efficient steam generation is crucial for the steam care function of clothing. Therefore, this application optimizes the structure of the heat exchanger 21.

[0048] In some embodiments, the heat exchanger 21 is elongated, the heating chamber 2101 extends along the length of the heat exchanger 21, and the liquid inlet 2102 is located at one end of the heat exchanger 21, while the steam outlet 2103 is located at the other end of the heat exchanger 21. This provides a longer heating path and a larger heating area for the liquid.

[0049] When liquid enters the heating chamber 2101 through the liquid inlet 2102, the liquid has a longer contact time and a larger contact area with the wall of the heating chamber 2101 during its flow, because the heating chamber 2101 extends along its length. This allows the heat transferred from the heating element 22 to the wall of the heating chamber 2101 to be more fully absorbed by the liquid, thereby accelerating the liquid's heating process, reaching the boiling point more quickly, and forming steam. Compared to the traditional box-shaped heat exchanger 21 design, this elongated structure with the heating chamber 2101 extending along its length can greatly improve the speed and efficiency of steam generation, thus enhancing the effect of steam care for clothing.

[0050] To further optimize heat transfer, in some embodiments, the heating element 22 is fitted to the inner wall of the heat exchanger 21 and extends along the length of the heat exchanger 21.

[0051] The heating element 22 is attached to the inner wall of the heat exchanger 21, and this close contact reduces thermal resistance during heat transfer. Heat can be directly conducted from the heating element 22 to the wall of the heat exchanger 21, and then to the heat conductor, optimizing the heat transfer path. The heating element 22 extends along the length of the heat exchanger 21, consistent with the extension direction of the heating chamber 2101. On the one hand, this increases the contact area between the heating element 22 and the liquid in the heating chamber 2101, improving heating efficiency; on the other hand, it ensures that the entire heating chamber 2101 is heated uniformly. In this way, the liquid is heated at all locations within the heating chamber 2101, avoiding localized overheating or uneven heating, further improving the efficiency of steam generation.

[0052] In some embodiments, the heat exchanger 21 adopts a split structure. Specifically, the heat exchanger 21 includes a main body 211 and an end cap 212. The main body 211 has a heating chamber 2101, and the end cap 212 covers the opening of the heating chamber 2101 and can be fixedly connected by bolts, clips, or other means. The heating element 22 is detachably connected to the main body 211, and the connection method can be bolts, clips, or other means. During assembly, the heating element 22 is first installed in the main body 211, and then the end cap 212 is aligned and fixed to the main body 211 to complete the closure of the heating chamber 2101. Compared with the integral molding process, the split structure of this embodiment facilitates maintenance and reduces processing difficulty and mold costs. In addition, the split structure also facilitates the opening of channels such as liquid inlet 2102 and steam outlet 2103 in the end cap 212 or the main body 211, thereby facilitating subsequent maintenance of the interior of the heating chamber 2101.

[0053] Furthermore, the end cap 212 is provided with a wire passage hole for the electrical connection wires of the heating element 22 to pass through for wiring. The end cap 212 not only prevents dust from entering the heating chamber 2101, but also allows the wiring to be organized through the wire passage hole, avoiding cable tangling and making the internal wiring of the device more tidy.

[0054] To improve assembly efficiency, in some embodiments, the heat-conducting component 10 and the heat exchanger 21 are integrated into a single structure. For example, the heat-conducting component 10 and the heat exchanger 21 are directly formed as a single unit through a casting process. Thus, the heat-conducting component 10 and the heat exchanger 21 are no longer independent parts, reducing the number of components and assembly steps from an assembly perspective. In actual production, there is no need to separately install, position, and connect the heat-conducting component 10 and the heat exchanger 21; the integrated heat-conducting component 10 and the heat exchanger 21 can be directly installed into the heating device, thereby simplifying the assembly process and improving production efficiency. Simultaneously, the integrated structure also reduces heat loss during the heat transfer process, improves heat transfer efficiency, and enhances the overall performance of the heating device.

[0055] In some embodiments, the heating element 22 and the heat exchanger 21 are an integral structure. Exemplarily, the heating element 22 and the heat exchanger 21 are directly formed as a single unit through a casting process. Thus, the heating element 22 and the heat exchanger 21 are no longer independent components, reducing the number of parts and assembly steps from an assembly perspective. In actual production, there is no need for separate installation, positioning, and connection of the heating element 22 and the heat exchanger 21; the integral heating element 22 and the heat exchanger 21 can be directly installed into the heating device, thereby simplifying the assembly process and improving production efficiency. Furthermore, the integrally formed structure makes heat transfer between the heating element 22 and the heat exchanger 21 more direct and efficient, reducing heat loss during the transfer process, thereby enabling faster heating of the liquid within the heat exchanger 21 and improving steam generation efficiency.

[0056] In some embodiments, such as Figure 4 As shown, the heat-conducting element 10 includes multiple fins 11. The heat-conducting element 10 is formed by interconnecting the multiple fins 11 to form a plate structure with multiple holes 102. These holes 102 constitute an airflow channel 101. The shape of the fins 11 can be rectangular, triangular, or trapezoidal, etc. Exemplarily, adjacent fins 11 are arranged at an angle to form triangular holes 102. In this way, the airflow is in full contact with the fins 11, improving the heat transfer efficiency.

[0057] In this embodiment, the heat-conducting element 10 is thermally connected to the heating element 22 to transfer the heat generated by the heating element 22 to the air duct, thereby heating the airflow within the air duct. When the heating element 22 generates heat, the heat is transferred to the fins 11 of the heat-conducting element 10 through conduction. Since the fins 11 have a large surface area, they can fully contact the airflow flowing through the air duct 101, rapidly transferring heat to the airflow and raising its temperature. The high-temperature airflow then enters the clothes processing drum along the air duct, providing additional heat for clothes drying.

[0058] In this embodiment, the heat-conducting element 10 is composed of multiple fins 11. On the one hand, the fin structure greatly increases the heat exchange area, enabling heat to be transferred more efficiently from the heating element 22 to the airflow, thus improving heating efficiency. On the other hand, this structure is relatively simple, easy to manufacture and install, and reduces production costs.

[0059] Please see Figure 1 and Figure 5To facilitate the installation of the heating device within the air duct, the heating device of this application further includes a bracket 30. The bracket 30 has a mounting cavity 301 for mounting the heat-conducting component 10 and the heating assembly 20. Guide members 311 are provided on the two opposing inner sidewalls of the mounting cavity 301. The guide members 311 can be structures such as guide rails or guide ribs. Exemplarily, the heat-conducting component 10 is connected to both sides of the heating assembly 20 to form an integral heating module. When installing the heating module, the heating module is aligned with the guide members 311 and slid along the direction of the guide members 311, thereby introducing the heating assembly 20 into the mounting cavity 301. In this embodiment, the guide members 311 can avoid deviations during installation, ensuring that the heating module is accurately installed in the predetermined position, and also reducing the adjustment time and difficulty during installation.

[0060] A limiting element 312 is provided at the opening of the mounting cavity 301. The limiting element 312 can be in the form of a baffle, a locking block, etc. When the heating module slides along the guide 311 to the appropriate position in the mounting cavity 301, the limiting element 312 can limit the heating module in the depth direction of the mounting cavity 301, preventing the heating module from shifting due to vibration or other reasons during equipment operation. Through the function of the limiting element 312, the stability of the heating module installation is ensured, enabling the heating device to operate stably.

[0061] In some embodiments, the bracket 30 includes an outer frame 31 and a mounting plate 32. The outer frame 31 has a mounting cavity 301, and the mounting plate 32 covers a portion of the opening of the mounting cavity 301, providing partial enclosure protection for the heating module and also providing an interface for pipe connections.

[0062] The heating device also includes a water inlet pipe 40 and a steam pipe 50. One end of the water inlet pipe 40 passes through the mounting plate 32 and is connected to the liquid inlet 2102 of the heating component 20, and the other end is connected to the water source of the dryer (such as a water pump, water tank, tap water interface, etc.); one end of the steam pipe 50 is connected to the steam outlet 2103 of the heating component 20, and the other end extends out from the opening of the outer frame 31 and is connected to the steam nozzle of the dryer.

[0063] When the dryer is working, the water inlet pipe 40 is prevented from shaking by the fixing structure of the mounting plate 32, ensuring a stable water supply; the steam pipe 50 extends from the outer frame 31 and fits against the inner wall of the air duct, making the overall structure of the heating device more compact.

[0064] In some embodiments, the heating device further includes a water pump 60, which is mounted on the mounting plate 32, and the outlet of the water pump 60 is connected to the inlet pipe 40. When the heating device is working, the water pump 60 delivers water or other liquids through the outlet to the liquid inlet 2102, and then into the heating chamber 2101. This installation method makes the position of the water pump 60 reasonable, facilitates connection with other components, and also facilitates maintenance and repair of the water pump 60. Moreover, the mounting plate 32 can also provide some protection for other components in the mounting chamber 301, reducing the impact of external factors on the heating component 20.

[0065] In some embodiments, at least one side of the outer frame 31 is provided with an airflow channel 3101, which can serve as an alternative flow path for airflow in the air duct to solve the problem that the air passage 101 may be blocked by lint.

[0066] When the dryer is running, clothing fibers and lint will enter the air duct with the airflow. After long-term use, they may accumulate in the air passage 101 of the heat-conducting component 10 (such as the gap between the fins 11), causing airflow obstruction, reduced drying efficiency, or even local overheating due to poor airflow.

[0067] In this embodiment, the airflow channel 3101 can be a rectangular or circular through hole 102 on the side wall of the outer frame 31. For example, multiple airflow channels 3101 can be provided and arranged at intervals on the same side of the outer frame 31 (e.g., three to five rectangular through holes). When the airflow channel 101 is unobstructed, most of the airflow preferentially flows through the airflow channel 101 with a larger airflow area; if the airflow channel 101 is blocked, the airflow can still pass through the airflow channel 3101, avoiding complete blockage of the airflow duct and reducing the risk of failure due to lint accumulation. In some embodiments, to simplify the assembly of the heating device and the air duct, the inner wall of the air duct is provided with a slot, and the bracket 30 is provided with a corresponding snap-fit ​​member 313 that mates with the slot on its periphery. Exemplarily, the snap-fit ​​member 313 protrudes from at least one side (such as the left and right sides) of the bracket 30 and extends in a long strip along the side (specifically the side of the outer frame 31).

[0068] During installation, align the snap-fit ​​part 313 of the bracket 30 with the slot in the air duct and slide it in along the length of the slot to secure it. When the dryer is operating, airflow impact and equipment vibration may cause the heating element to shift. The long, strip-shaped snap-fit ​​part 313 has a larger contact area with the slot (compared to point-type or block-type snap-fits), thus improving the stability of the connection. At the same time, this sliding connection method improves installation efficiency and facilitates later disassembly and maintenance (such as cleaning lint and replacing parts). Furthermore, the snap-fit ​​structure does not occupy internal space in the air duct, reducing obstruction of airflow within the duct.

[0069] During the steam generation and discharge process, the pressure inside the heating chamber 2101 will change continuously. If the pressure is too high and not released in time, it may cause damage to the heat exchange component 21.

[0070] Therefore, in some embodiments, a pressure relief valve 70 is provided at the liquid inlet 2102 and / or the steam outlet 2103 to improve the safety of the heating device.

[0071] When the pressure inside the heating chamber 2101 exceeds the set pressure of the pressure relief valve 70, the pressure relief valve 70 will automatically open to release the excess pressure. The pressure relief valve 70 at the liquid inlet 2102 prevents damage to the equipment due to abnormal pressure increases when liquid enters the heating chamber 2101; the pressure relief valve 70 at the steam outlet 2103 ensures that the pressure remains within a safe range during steam discharge, thus avoiding safety hazards caused by excessive pressure and ensuring the stable operation of the heating device and user safety.

[0072] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A heating device, characterized in that, include: The heat-conducting component forms an airflow channel; as well as Heating components, including: A heat exchanger is connected to the heat-conducting component for heat transfer. The heat exchanger has a heating chamber with a liquid inlet for liquid to enter and a steam outlet for steam to flow out. A heating element, connected to the wall of the heating chamber and at least partially disposed within the heating chamber, is used to heat the liquid within the heating chamber and to transfer heat to the heat-conducting element to heat the airflow passing through the air passage.

2. The heating device according to claim 1, characterized in that, The heating element and the heat-conducting element are respectively connected to the inner and outer sides of at least one wall of the heating cavity.

3. The heating device according to claim 2, characterized in that, Two heating elements and two heat-conducting elements are provided. The two heating elements are respectively provided on the two inner walls opposite to each other in the heating cavity, and the two heat-conducting elements are respectively provided on the two outer walls opposite to each other in the heating cavity.

4. The heating device according to claim 1, characterized in that, The heat exchanger is elongated, the heating chamber extends along the length of the heat exchanger, the liquid inlet is located at one end of the heat exchanger, and the steam outlet is located at the other end of the heat exchanger.

5. The heating device according to claim 4, characterized in that, The heating element is fitted to the inner wall of the heat exchanger and extends along the length of the heat exchanger.

6. The heating device according to claim 1, characterized in that, The heat exchange component includes: The main body has the heating cavity formed thereon; and An end cap is provided over the opening of the heating chamber, and the end cap is provided with a wire passage hole for wiring the heating element; The heating element is detachably connected to the main body.

7. The heating device according to claim 1, characterized in that, The heat exchange component and the heating component are an integral structure; And / or, the heat exchange component and the heat conduction component are an integral structure.

8. The heating device according to claim 1, characterized in that, The heat-conducting component includes: Multiple fins are interconnected to form a plate structure with multiple holes, and the multiple holes form the air passage.

9. The heating device according to claim 1, characterized in that, The heating element includes one of a PTC heating element and a heating tube.

10. The heating device according to claim 1, characterized in that, The heating device also includes: The bracket has a mounting cavity for mounting the heat-conducting element and the heating assembly; The bracket is provided with a limiting member to confine the heat-conducting member and the heating assembly within the mounting cavity.

11. The heating device according to claim 10, characterized in that, The support has an airflow channel on at least one side for airflow to pass through.

12. The heating device according to claim 1, characterized in that, A pressure relief valve is provided at the liquid inlet and / or the steam outlet.

13. The heating device according to any one of claims 1 to 12, characterized in that, The heating device is applied to a clothing processing equipment, which has an air duct for drying clothes, and the heating device is disposed within the air duct.

14. A garment processing device, characterized in that, include: The housing assembly is equipped with air ducts; A clothing handling drum is installed inside the housing assembly and is connected to the air duct; as well as The heating device according to any one of claims 1 to 13, wherein the steam outlet is connected to the clothing treatment drum, and the heat-conducting element is located in the air duct.

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