Moxa smoke high-temperature purification device and moxa moxibustion device with same

Abstract

The utility model belongs to moxa smoke purification technical field especially relates to a kind of moxa smoke high-temperature purification device and moxa smoke moxibustion device with it, the moxa smoke high-temperature purification device, including first cavity and second cavity being arranged in parallel in shell, smoke pipe is introduced into first cavity by moxa smoke, heating device is arranged in first cavity interior and forms axial hollow passage to moxa smoke and carries out high-temperature heating, ternary catalytic device is arranged on high-temperature flow path and carries out catalytic cracking to moxa smoke, heat sink is communicated with second cavity for the high-temperature gas cooling after catalysis, air induction device promotes moxa smoke and sequentially flows through heating, catalysis and heat dissipation link, realize continuous high-temperature purification treatment, the structure of the application is compact and does not rely on consumables, heating is uniform, catalysis is thorough, heat dissipation is fast, suitable for small moxa smoke moxibustion equipment embedded use, with the advantages of efficient purification and safe discharge.

Description

Technical Field

[0001] This utility model belongs to the field of moxa smoke purification technology, and particularly relates to a high-temperature moxa smoke purification device and a moxibustion device having the same. Background Technology

[0002] Moxibustion, a traditional external therapy in Chinese medicine, is widely used in medical institutions and home healthcare settings. Moxibustion smoke contains complex components such as tar, PM2.5, and VOCs. If not handled properly, it can easily cause air pollution. Therefore, moxibustion smoke purification technology has become an important part of the research and development of moxibustion equipment. Currently, most small moxibustion instruments on the market use physical filtration methods such as filter cotton and activated carbon to achieve smoke purification through simple interception or adsorption. However, the sticky tar in moxibustion smoke easily clogs the filter material, leading to increased airflow resistance and a rapid decline in purification effect. Frequent replacement of consumables not only increases the cost of use but also leads to the risk of secondary pollution if maintenance is delayed. Moreover, this passive filtration method can only remove some particulate matter and odors and cannot completely decompose harmful components, thus failing to meet the purification needs of long-term continuous moxibustion.

[0003] Existing technologies employ high-temperature catalytic decomposition, heating moxa smoke and introducing a catalyst to oxidize and decompose harmful components into carbon dioxide and water. For example, Chinese Patent CN215233306U discloses a moxa smoke treatment system for a moxibustion device. This system includes a heater, temperature control device, three-way catalytic converter, radiator, and filter components. It purifies moxa smoke through a "heating-catalysis-heat dissipation-filtration" process, significantly improving purification depth compared to traditional physical filtration methods and further decomposing some tar and organic components. However, this solution uses a distributed layout, with the heater, catalyst, heat dissipation component, and filter component connected in series via pipes. The overall structure is large, suitable for integration into large moxibustion devices, but not ideal for installation in small or portable moxibustion devices. Its large size and weight make it difficult to meet the lightweight and flexible layout requirements of home use. Furthermore, the structure lacks sufficient coordination between the heat dissipation component and other functional modules, resulting in a long airflow path, complex temperature control, and limited overall operating efficiency.

[0004] Furthermore, the existing structure of the moxa smoke heating components still leans towards traditional heating elements, which have limited heating area, uneven heat distribution, and heating efficiency limited by the flow path of the moxa smoke. They are prone to local overheating or failure to meet the temperature standard. During long-term operation, the heating components are prone to performance degradation in high-temperature environments, affecting the stability of catalytic decomposition. Moreover, their filter components rely on a combination of filter cotton and activated carbon, which still requires regular disassembly and replacement of consumables. The maintenance process is not convenient and is not suitable for frequent operation by ordinary users in a home environment.

[0005] Therefore, developing a smoke purification device that can be effectively adapted to household or small moxibustion devices, and solving key problems such as large size, low integration and poor adaptability in existing technologies, has become an urgent technical need for those skilled in the art. Utility Model Content

[0006] This invention aims to solve at least one of the following problems in existing small moxibustion devices: uneven heating, insufficient catalysis, easy clogging of filter materials, large size, and unsafe high-temperature smoke exhaust.

[0007] In view of this, the present invention provides a high-temperature purification device for moxa smoke and a moxibustion device having the same. The device achieves uniform heating by setting an axial hollow heating channel and distributes a three-way catalytic device in the dual chamber to form a graded pyrolysis path. Combined with a multi-channel heat dissipation device, it completes forced cooling, enabling the moxa smoke to complete the entire process of heating, catalysis and heat dissipation in a short process, achieving the dual effects of high-efficiency purification and safe emission.

[0008] The first objective of this application is to disclose a high-temperature purification device for moxa smoke, comprising: The outer shell has a first cavity and a second cavity arranged side by side inside it; The smoke inlet pipe is connected to the first cavity of the outer shell, allowing the smoke from the moxa to enter the first cavity; A heating device is installed inside the first cavity, with a hollow channel in its axial direction, for heating the moxa smoke entering the first cavity at high temperature. A three-way catalytic converter is installed inside the outer shell along the flow path after the moxa smoke is heated, and is used to catalytically decompose the high-temperature moxa smoke. The heat dissipation device, one end of which is connected to the second cavity, is capable of cooling down the high-temperature smoke after it has been catalytically decomposed by the three-way catalytic device. The ventilation device is used to guide the smoke from the moxa smoke through the heating device, the three-way catalytic converter, and the heat dissipation device in sequence, so as to continuously treat and exhaust the smoke at high temperature. The heating device has a double-layer ceramic structure, consisting of an inner ceramic wall and an outer ceramic wall. A metal resistor is wrapped between the inner and outer ceramic walls, and a hollow channel is located on the inner side of the inner ceramic wall.

[0009] In some examples of this application, the central axis of the hollow channel is parallel to the central axis of the first cavity.

[0010] In some examples of this application, the heating device extends four leads, two of which are power supply leads and the other two are temperature measurement leads.

[0011] In some examples of this application, a fixing frame is provided on the outside of the heating device, the heating device is installed in the first cavity through the fixing frame, and the fixing frame is covered with heat insulation material.

[0012] In some examples of this application, the housing includes a cavity sidewall and a bottom plate, the bottom plate being disposed at the end of the cavity sidewall away from the smoke inlet pipe, and the first cavity and the second cavity being connected by a ventilation duct at the end near the bottom plate.

[0013] In some examples of this application, the length of the second cavity in the axial direction is less than the length of the first cavity in the axial direction, and the end of the first cavity away from the smoke inlet pipe is flush with the end of the second cavity.

[0014] In some examples of this application, two three-way catalytic converters are provided, and the two three-way catalytic converters are respectively disposed inside the first cavity and the second cavity.

[0015] In some examples of this application, the heat dissipation device includes multiple heat sinks, with a through heat dissipation air duct provided inside each heat sink. The two ends of the heat dissipation device are respectively sealed to the second cavity and the air intake device through a first connecting seat and a second connecting seat. A heat dissipation fan is provided on one side of the heat dissipation device, and the air outlet direction of the heat dissipation fan is set at an angle to the central axis of the second cavity.

[0016] In some examples of this application, a temperature sensor is provided inside the first cavity, and the temperature sensor is located between the heating device and the three-way catalytic converter. Alternatively, temperature sensors are provided inside both the first cavity and the second cavity, with the temperature sensor inside the first cavity located between the heating device and the three-way catalytic converter, and the temperature sensor inside the second cavity located between the three-way catalytic converter and the heat dissipation device.

[0017] The second objective of this application is to disclose a moxibustion device, comprising a moxibustion body and a high-temperature purification device for moxa smoke as described above. The moxibustion body has a moxibustion cavity for placing and burning moxa materials. The moxibustion body is provided with a smoke output end and a temperature control component. The smoke output end is connected to the smoke inlet pipe of the high-temperature purification device for moxa smoke through a pipe. The temperature control component is used to adjust the temperature of the moxibustion cavity so that the moxa smoke generated by burning moxa materials in the moxibustion cavity is transported into the high-temperature purification device for heating, catalytic cooling, and treatment.

[0018] Compared with existing technologies, the high-temperature purification device for moxa smoke and the moxibustion device incorporating it described in this utility model have the following advantages: 1. This application adopts a dual-chamber parallel layout to form a highly compact integrated flow channel structure for the heating, catalysis, and heat dissipation units within a limited space. After the smoke enters, it flows in a straight line along the axial direction in the first chamber and then flows to the second chamber through a ventilation channel perpendicular to the axial flow direction, so that the airflow remains continuous and stable throughout the process. At the same time, in the heating stage, the hollow ceramic channel achieves full-enclosed uniform heating, avoiding local overcooling or overheating that would affect the efficiency of the catalytic reaction. In the catalytic stage, a two-stage three-way catalytic converter achieves step-by-step cracking, so that tar particles and volatile organic compounds can be thoroughly oxidized in different temperature zones, improving the purification depth. In the heat dissipation stage, a large-area heat exchange interface is formed by multi-channel heat dissipation fins, which significantly shortens the exhaust cooling time. Finally, long-term stable operation is achieved without the need for consumables.

[0019] 2. This application achieves efficient purification while clearly considering the needs of miniaturized applications. The entire device can be embedded in a straight line along the side wall of the moxibustion device without the need for additional pipes or adapters. The internal flow path switching between the two chambers is achieved through the built-in ventilation duct, avoiding the space waste and increased flow resistance caused by the traditional top external pipe. The structure presents a regular end face and a flat axial contour, which is convenient for the shell sealing and appearance integration. At the same time, the two-stage catalytic device is distributed to avoid the catalyst being deactivated due to prolonged concentrated heating, thus extending the overall service life. It is suitable for moxibustion scenarios with high frequency and long-term continuous operation, and is especially suitable for lightweight devices such as home and commercial integrated moxibustion machines. Attached Figure Description

[0020] Figure 1 This is a front view structural schematic diagram of the high-temperature purification device for moxa smoke described in this embodiment of the utility model; Figure 2 This is a side view of the high-temperature purification device for moxa smoke according to an embodiment of the present invention; Figure 3 This is a side view of the high-temperature purification device for moxa smoke described in this embodiment of the present invention. Figure 4 This is a side view of the high-temperature smoke purification device described in this embodiment of the utility model from a third perspective. Figure 5 This is a cross-sectional structural schematic diagram of the high-temperature purification device for moxa smoke described in this embodiment of the utility model; Figure 6 This is a schematic diagram of the exploded structure of the high-temperature purification device for moxa smoke described in this embodiment of the utility model; Figure 7 This is a schematic diagram of the heat dissipation device structure according to an embodiment of the present utility model; Figure 8 This is a second-view structural schematic diagram of the heat dissipation device according to an embodiment of the present invention; Figure 9This is a side view of the heating device according to an embodiment of the present invention; Figure 10 This is a side view of the heating device described in an embodiment of the present invention. The markings in the diagram are as follows: 1-Inlet pipe; 2-Outer shell; 201-Cavity sidewall; 202-First cavity; 203-Second cavity; 204-Base plate; 3-Heat dissipation device; 301-Heat dissipation fin; 302-First connecting seat; 303-Second connecting seat; 304-Heat dissipation duct; 4-Exhaust fan; 5-Heat dissipation fan; 6-Temperature sensor; 7-Heating device; 701-Hollow channel; 702-Lead wire; 8-Fixing bracket; 9-Three-way catalytic converter; 901-Connecting channel; 10-Connecting ventilation duct; 11-Sealing gasket. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0022] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0023] In the description of this utility model, unless otherwise explicitly 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 mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] like Figures 1-10 As shown, this application discloses a high-temperature purification device for moxa smoke, comprising: The outer casing 2 has a first cavity 202 and a second cavity 203 arranged side by side inside it; The smoke inlet pipe 1 is connected to the first cavity 202 of the outer shell 2, so that the smoke enters the first cavity 202; Heating device 7 is disposed in the first cavity 202, and a hollow channel 701 is provided in its axial direction for heating the moxa smoke entering the first cavity 202 at high temperature. The three-way catalytic device 9 is installed inside the outer shell 2 in the flow path after the moxa smoke is heated, and is used to catalytically decompose the high-temperature moxa smoke; The heat dissipation device 3, one end of which is connected to the second cavity 203, can cool down the high-temperature moxa smoke after it has been catalytically decomposed by the three-way catalytic device 9, so as to avoid the temperature of the emitted moxa smoke being too high. The air intake device 4 is used to guide the moxa smoke through the heating device 7, the three-way catalytic device 9, and the heat dissipation device 3 in sequence, so as to achieve continuous high-temperature treatment and discharge of the moxa smoke.

[0026] The high-temperature purification device for moxa smoke disclosed in this application is designed with overall compactness and high-efficiency purification as its principles. The outer shell 2 adopts a parallel layout of the first cavity 202 and the second cavity 203, which clearly divides the internal space of the device and reduces the volume waste caused by the scattered installation of components. The smoke inlet pipe 1 is directly connected to the first cavity 202, which allows the moxa smoke to quickly enter the heating area without being transported through long-distance pipelines, avoiding leakage and pollution of the indoor environment. The heating device 7 is set inside the first cavity 202 and forms a hollow channel 701 in the axial direction, which allows the moxa smoke to pass through and be enveloped stably. In the heating area, the three-way catalytic converter 9 is positioned along the high-temperature flow path of the moxa smoke, allowing the heated smoke to quickly enter the catalytic section and ensuring a stable catalytic reaction. The heat dissipation device 3 is connected to the second chamber 203, enabling the high-temperature gas after catalysis to cool down within a short path, avoiding the risk of burns or damage to external components during exhaust. The air intake device 4 serves as the core power source for the flow of moxa smoke, continuously propelling it through the heating, catalytic, and heat dissipation stages in a predetermined sequence. During use, the air intake device 4 first activates the airflow drive, and the moxa smoke generated by the moxibustion device flows through the smoke inlet pipe 1 under the suction force. The smoke enters the first cavity 202 and flows along its axis towards the heating device 7. Since the heating device 7 has a hollow channel 701 along its axis and is coaxial with the first cavity 202, the smoke is guided through the heating area via the hollow channel 701. When the device is working, the heating element heats up and reliably heats the smoke entering the first cavity 202, raising the overall temperature of the smoke to the conditions required for the three-way catalytic converter. Subsequently, the high-temperature smoke continues to flow along a predetermined path into the three-way catalytic converter 9 under the action of the air intake device 4. The catalytic material, under high-temperature conditions, reacts with the tar in the smoke. The gas decomposes or oxidizes particulate matter and volatile organic compounds, converting them into harmless substances such as carbon dioxide and water. Although the purified gas is free of harmful components, it is still at a high temperature. Therefore, it continues to enter the heat dissipation device 3, which is connected to the second chamber 203, under the impeller airflow. The heat dissipation device 3 quickly removes the high temperature through convection or heat conduction, reducing the gas temperature to a safe range. The treated clean gas is finally discharged outside the outer shell 2 under the continuous action of the impeller 4. Throughout the process, the smoke always flows along a fixed path without backflow or stagnation, ensuring the continuous and stable operation of the heating, catalytic and heat dissipation links.

[0027] The high-temperature purification device for moxa smoke described in this application significantly reduces the size of the device by adopting an integrated structure, making it easy to embed in household or small moxibustion equipment. It does not require a large installation space, reducing the operational difficulty for users during use and maintenance. At the same time, since catalytic purification does not require frequent replacement of consumables, compared with the traditional method of relying on filter cotton or activated carbon adsorption, this device can maintain stable purification capacity during long-term operation, making it suitable for high-frequency moxibustion environments.

[0028] As a preferred example of this application, the heating device 7 has a double-layer ceramic structure, consisting of an inner ceramic wall and an outer ceramic wall. A metal resistor is wrapped between the inner and outer ceramic walls. The heating device 7 has an internal hollow channel 701, the central axis of which is parallel to the central axis of the first cavity 202. In this example, by using a double-layer ceramic tube wall structure to tightly enclose the metal resistor within the ceramic material, a stable and reliable protective barrier is provided for the heating unit. This effectively isolates the long-term corrosion of the resistor surface by tar, smoke, and particles carried in the smoke, ensuring that the resistor's resistance performance does not degrade even at high temperatures. This extends the overall service life of the heating device, reduces maintenance costs caused by frequent replacements, and ensures high electrical safety even when continuously powered, preventing leakage risks due to moisture or smoke condensation. The internal hollow channel 701 is parallel to, and preferably collinear with, the axis of the first cavity 202, allowing the smoke to flow in a straight line along the central axis. The airflow remains unobstructed and turbulent, ensuring a continuous, encircling contact between the flue gas and the heating area of ​​the ceramic wall. This allows heat to be evenly distributed to every stream of air during the flow, improving temperature uniformity and preventing incomplete catalytic reactions due to low temperatures in certain areas. It also prevents coking of the flue gas due to localized overheating, making the purification process more stable and reliable. Compared to solid heating rods, this hollow heating structure has a larger heating area, releasing more heat per unit time, resulting in faster heating and more thorough heating of the airflow. This significantly improves overall thermal efficiency, enabling the device to achieve better heating effects under the same power conditions. Consequently, it further shortens preheating time and reduces energy consumption, making the entire device more economical and practical while maintaining strong purification capabilities.

[0029] As a preferred example of this application, four leads 702 extend from the heating device 7, two of which are power supply leads and the other two are temperature measurement leads. In the example of this application, the heating device 7 adopts a four-lead 702 structure to separate the power supply circuit and the temperature measurement circuit, so that the heating and temperature control functions operate independently. This prevents current fluctuations from affecting the accuracy of temperature detection, ensuring stable temperature data output under any heating state. This guarantees that the temperature control module can always obtain accurate and effective temperature information, resulting in higher response speed and adjustment accuracy throughout the heating process. Simultaneously, this split-wiring design eliminates the need for additional independent temperature measurement components, allowing the heating device to simultaneously handle heating and monitoring functions within a limited volume. This makes the overall structure more compact, and the internal wiring clearer and more orderly, avoiding functional miswiring or detection delays caused by insufficient leads. It also improves the convenience of maintenance and repair, preventing malfunctions caused by misconnections or incorrect insertions. The entire system remains under control during operation, preventing overheating damage to the heating device or burnout of the catalytic device due to temperature runaway. This ensures stable performance during long-term operation, eliminating the need for frequent manual temperature adjustments or reliance on experience to judge temperature suitability. The temperature control process becomes automated and precise, ensuring that the smoke purification process is always under optimal heat treatment conditions, thus improving the purification efficiency and safety performance of the purification device.

[0030] As a preferred example of this application, a fixing frame 8 is provided on the outside of the heating device 7, and the heating device 7 is installed in the first cavity 202 through the fixing frame 8, and the fixing frame 8 is covered with heat insulation material. In the example of this application, through the combination structure of the fixing frame 8 and the heat insulation material, the stability, safety, energy saving and easy maintenance that are difficult to achieve in traditional moxa smoke purification devices are unified. Once the internal heating element of traditional moxa smoke purification equipment fails, it is often necessary to disassemble the outer shell or even remove multiple fasteners to complete the replacement. Preferably, the fixing frame 8 and the first cavity 202 are installed in a detachable connection manner, so that the heating device 7 can be quickly pulled out or replaced in a modular form. The user only needs to open the first cavity 202 to complete the replacement operation without the need for professional tools or rewiring of the internal wiring, which greatly reduces maintenance time and labor costs, and at the same time reduces the risk of damage to the internal components of the equipment due to improper operation. At the same time, the fixing frame 8 is connected to the first cavity 202 on the outside. The heat insulation material between the inner walls forms a continuous covering layer, which is equivalent to building a thermal barrier. This concentrates the heat generated in the heating area around the path of the smoke, preventing excessive diffusion to the outer shell 2. This keeps the surface temperature of the outer shell 2 within a touchable range, avoiding the risk of burns from accidental contact when users approach or move the device. At the same time, the high concentration of heat within the limited area allows the smoke to be quickly heated to the high temperature range required for catalytic decomposition as it passes through the heating channel, thereby improving the efficiency of harmful component decomposition. Under the same power input, a higher purification effect can be achieved, further reducing energy consumption. The heat insulation material also prevents uneven stress on the heating components due to uneven thermal expansion, maintaining the long-term stability of the heating device from a structural perspective, extending the overall lifespan of the machine and reducing after-sales costs.

[0031] As a preferred example of this application, the outer shell 2 includes a cavity sidewall 201 and a bottom plate 204. The bottom plate 204 is disposed at the end of the cavity sidewall 201 away from the smoke inlet pipe 1. The first cavity 202 and the second cavity 203 are connected by a connecting ventilation duct 10 at the end near the bottom plate 204. In this example, the outer shell 2 is designed with a cavity sidewall 201 and a bottom plate 204. The bottom plate 204 is disposed at the end away from the smoke inlet pipe 1, which is equivalent to providing a stable closed support surface for the entire outer shell 2. This allows the first cavity 202 and the second cavity 203 to form a complete flow space for axial movement inside. At the same time, the connecting ventilation duct 10 is arranged in the area near the bottom plate 204, so that after the heating stage of the first cavity 202 is completed, the smoke can flow into the second cavity 203 through the connecting ventilation duct 10. This avoids the space occupation problem caused by the need to set up an additional connecting pipe on the top of the outer shell 2 in the traditional structure, and also reduces the flow resistance caused by the additional pipe bends. The shorter and straighter path of the moxa smoke reduces heat loss, ensuring that the moxa smoke remains at a relatively high temperature when entering the second chamber 203, facilitating the continued catalytic reaction. Since the ventilation duct 10 is located inside the outer shell 2, the exposed pipes are not visible from the outside, making the overall design more aesthetically pleasing and compact. The entire device has a longitudinally flattened layout along the axial direction, which is conducive to compact installation along one side wall inside a small moxibustion device. This allows the device to retain the high-temperature catalytic decomposition processing capability while also meeting the extreme space utilization requirements of the miniaturized structure. The overall structure can achieve efficient transfer of moxa smoke between the two chambers without the need for additional components, reducing manufacturing costs and the complexity of the assembly process.

[0032] As a preferred example of this application, the length of the second cavity 203 in the axial direction is less than the length of the first cavity 202 in the axial direction, and the end of the first cavity 202 away from the smoke inlet pipe 1 is flush with the end of the second cavity 203. In the example of this application, by designing the first cavity 202 to have an axial length greater than that of the second cavity 203, the first cavity 202 has more internal space to accommodate the heating device 7. The smoke entering it can continuously contact the heating element and gradually heat up to a high temperature within a longer heating path, ensuring that it reaches the temperature standard required for decomposition before entering the catalytic stage. At the same time, the axial length of the second cavity 203 is shortened and kept flush with the end of the first cavity 202, thereby leaving space for the installation and fixation of the heat dissipation device 3 at the end of the second cavity 203 away from the bottom plate 204. This allows the catalytic treatment and heat dissipation process to be completed quickly within a compact path, avoiding the stagnation or accumulation of smoke in the catalytic or heat dissipation areas, and keeping the overall processing flow smooth and continuous. The flush end design makes the outer shell 2 visually present a regular end face, which facilitates the uniform installation of the bottom plate 204 or sealing cover, while reducing the sealing difficulty caused by height differences and improving assembly efficiency.

[0033] As a preferred example of this application, two three-way catalytic converters 9 are provided, and the two three-way catalytic converters 9 are respectively disposed inside the first cavity 202 and the second cavity 203. In the example of this application, by setting three-way catalytic converters 9 in two cavities respectively, the purification process of moxa smoke is upgraded from single-stage cracking to two-stage graded treatment, thereby achieving a higher purification depth and stronger load resistance in the same volume, fundamentally improving the thoroughness of the conversion of harmful components. Even if the amount of moxa smoke generated is large or the composition is complex, large tar particles, fine particulate matter, and volatile organic gases can be sequentially decomposed and completely oxidized through two catalytic reactions, without residual phenomena due to excessive load on the primary catalyst. At the same time, this arrangement also effectively improves the stability of the catalytic converter under high-temperature continuous operation, allowing each catalytic converter to operate in a relatively balanced thermal environment, avoiding catalyst deactivation or structural deformation caused by high heat concentration, thereby extending the life of the catalytic converter. In addition, the two catalytic converters are distributed in different cavities, which also makes the internal layout of the equipment more flexible and effectively avoids the problems of heat concentration or airflow blockage caused by stacking catalytic units in the same area. In the example of this application, a plurality of connecting channels 901 are provided on each of the three-way catalytic converters 9. The axial direction of the connecting channel 901 is parallel to the axial direction of the first cavity 202 and the second cavity 203, and one end of the channel is connected to the connecting ventilation duct 10.

[0034] As a preferred example of this application, the heat dissipation device 3 includes multiple heat sinks 301, and a through-flow heat dissipation duct 304 is provided inside each heat sink 301. The two ends of the heat dissipation device 3 are respectively sealed to the second cavity 203 and the air-guiding device 4 via a first connecting seat 302 and a second connecting seat 303. In this example, the heat dissipation device 3 is composed of multiple heat sinks 301, and a through-flow heat dissipation duct 304 is formed inside each heat sink 301. This allows the high-temperature smoke after catalytic treatment to be quickly diverted into multiple ducts and flow synchronously along different paths when passing through the heat dissipation section. This enables the gas to achieve a larger area of ​​heat exchange contact within a limited space. Compared to a single duct structure, its heat dissipation contact area is increased several times, allowing the high-temperature smoke to be forced to complete rapid cooling through a large-area heat exchange path before being discharged. Even under long-term high-load operation, the outlet airflow temperature can be kept stable within a safe range. Users will not feel hot or burning when touching the external structure or near the exhaust vent, which significantly improves the reliability of home moxibustion devices in terms of safety. At the same time, the sealing connection provided by the first connecting seat 302 and the second connecting seat 303, such as the connection structure of the sealing gasket 11, can seal and fix the heat dissipation device 3 with the second cavity 203 and the air-guiding device 4, so that the heat dissipation device 3 and the front and rear cavities form a closed flow channel, preventing the moxa smoke from leaking from the connection gaps before it has been fully cooled, avoiding the uncooled gas from harming users or polluting the indoor environment, and ensuring that the exhaust airflow meets the requirements for healthy use in terms of temperature and cleanliness.

[0035] As a preferred example of this application, a cooling fan 5 is provided on one side of the heat dissipation device 3, and the air outlet direction of the cooling fan 5 is arranged at an angle to the central axis of the second cavity 203. In this example, by installing the cooling fan 5 on the outside of the heat dissipation device 3 and arranging it with its air outlet direction at an angle to the central axis of the second cavity 203, a crisscrossing turbulent airflow is formed between the heat sinks 301, breaking the stagnant air layer on the surface of the heat sinks 301, improving heat exchange efficiency, and achieving efficient cooling of the heat dissipation device 3 without increasing the complexity of the structure. At the same time, since the cooling fan 5 is installed on the outside of the heat dissipation device 3, the space inside the device used for purification is not occupied, allowing for a more compact arrangement of the internal catalytic components. Preferably, two cooling fans 5 are provided, and the air outlet direction of the cooling fans 5 is arranged perpendicular to the central axis of the second cavity 203.

[0036] As a preferred example of this application, the exhaust device 4 includes a blower, which is located at the end of the heat dissipation device 3 away from the connecting ventilation duct 10, for forming a terminal exhaust airflow path. In the example of this application, by setting the blower at the smoke outlet end of the heat dissipation fin 301 away from the connecting ventilation duct 10, a continuous suction force can be formed at the end of the entire airflow channel, so that the smoke can be evenly pulled forward along a fixed path after entering the purification device, without relying on the front-end pushing device to provide power, thereby avoiding the risk of smoke stagnation and accumulation during the heating or catalytic stage, and keeping the airflow smooth in each processing stage. This promotes heat transfer and full catalytic reaction during the heating process. Since the blower is located at the smoke outlet end and is not directly exposed to the high-temperature area, the thermal shock it experiences during operation is significantly reduced, making the motor coil and bearing parts less prone to aging, extending the overall life of the blower and reducing performance degradation caused by high temperature. The terminal exhaust method also makes the internal pressure difference of the airflow form in a single direction, which can reduce backflow or leakage caused by local positive pressure and maintain the airflow direction. The unidirectional stability of the device makes the internal heat flow organization clearer, which is conducive to forming an efficient purification channel. The blower is installed in a position away from the heat source, which also makes maintenance easier. Maintenance can be completed without disassembling the heating or catalytic structure. At the same time, this layout allows the front heating and catalytic devices to be placed close to the smoke inlet, shortening the residence distance of moxa smoke at high temperature. This concentrates the heat in the treatment area and prevents it from spreading to the blower, improving the overall safety of the equipment. In addition, another advantage of the end exhaust is that it can form a stable negative pressure zone at the exhaust port, so that the moxa smoke will not fluctuate greatly when it is sucked out at high speed, reducing exhaust noise and making the equipment quieter and more suitable for use in home environments. At the same time, the airflow path is drawn by the exhaust fan to form a straight flow without the need for additional bends, making the overall structure more compact and easy to install in small moxibustion devices, greatly improving product compatibility and user convenience.

[0037] As a preferred example of this application, a temperature sensor 6 is provided inside the first cavity 202, and the temperature sensor 6 is located between the heating device 7 and the three-way catalytic converter 9. Alternatively, a temperature sensor 6 is provided inside both the first cavity 202 and the second cavity 203. The temperature sensor 6 inside the first cavity 202 is located between the heating device 7 and the three-way catalytic converter 9, and the temperature sensor 6 inside the second cavity 203 is located between the three-way catalytic converter 9 and the heat dissipation device 3. In the example of this application, by adding a temperature sensor 6 between the heating device 7 and the three-way catalytic converter 9 inside the first cavity 202, the device can immediately know the true temperature status of the moxa smoke after it has been heated and before it enters the catalytic process. Since the amount of moxa smoke produced and its initial temperature often fluctuate under different usage scenarios, if the traditional fixed-power heating mode is still used, it is easy to cause insufficient heating, resulting in insufficient catalytic reaction or excessive heating, which leads to energy waste. Through the continuous monitoring function of the temperature sensor 6, the actual temperature after heating can be fed back to the control module in a timely manner so as to automatically determine whether the ideal temperature range required for catalytic decomposition has been reached. If the detected value is too low, the control module instructs the heating device 7 to increase the power to continue heating the moxa smoke. If the detected value has met or even exceeded the preset standard, the control module instructs the heating device 7 to reduce the power or temporarily stop to avoid overheating. The process allows the moxa smoke to enter the three-way catalytic converter 9 at a suitable temperature for decomposition. In some examples of this application, a temperature sensor 6 is also installed between the three-way catalytic converter 9 and the heat dissipation device 3 in the second cavity 203. This sensor monitors the high-temperature moxa smoke treated by the three-way catalytic converter 9 in real time and feeds the data back to the control module to adjust the operating status of the heat dissipation fan 5. This effectively avoids the heating and cooling equipment from operating at full load for extended periods, significantly reducing energy consumption and extending the service life of core components. Even when faced with fluctuating moxibustion intensity or large changes in ambient temperature, the system can maintain a stable purification effect. Users can obtain clean, odorless, mild, and safe exhaust gas without manually adjusting the equipment parameters, further improving the moxibustion experience and air quality. This system is suitable for various occasions such as home, personal health care institutions, and physiotherapy centers, and is especially suitable for scenarios with high requirements for air quality and temperature safety.

[0038] This application also discloses a moxibustion device, including a moxibustion body and a high-temperature purification device for moxa smoke as described in the above embodiments. The moxibustion body has a moxibustion cavity for placing and burning moxa materials. The moxibustion body is provided with a moxa smoke output end and a temperature control component. The moxa smoke output end is connected to the smoke inlet pipe 1 of the high-temperature purification device for moxa smoke through a pipe. The temperature control component is used to adjust the temperature of the moxibustion cavity so that the moxa smoke generated by the burning moxa materials in the moxibustion cavity is transported into the high-temperature purification device for heating, catalytic cooling and treatment. The moxibustion device disclosed in this application connects the moxibustion body to a high-temperature purification system in a fixed flow path. This allows the moxa smoke generated during moxibustion to be directly introduced into the purification system for treatment before it diffuses into the outside air. During use, the moxa is placed in the moxibustion chamber of the moxibustion body and ignited to generate moxa smoke. When the moxa smoke accumulates in the chamber, it enters the pipe along the moxa smoke output end on the side wall under the action of temperature and pressure differences. It is then guided to the smoke inlet pipe 1 of the high-temperature purification device connected to it. Inside the purification device, the moxa smoke is heated to the temperature required for catalytic decomposition by the heating device 7, and then reaches the three-way catalytic device 9 for the decomposition of harmful components. Finally, it flows through the heat dissipation device 3 to reduce the temperature and is discharged. During the entire flow process, the temperature control component is responsible for adjusting the temperature of the moxibustion chamber to match the rate of moxa smoke generation with the purification rhythm, avoiding a sudden increase in the amount of moxa smoke that could lead to accumulation or a decrease in purification efficiency. The entire system relies on a closed structure and negative pressure flow principle to achieve automatic collection and sequential processing of moxa smoke, so that users can experience the effects of moxibustion without suffering from smoke stimulation or worrying about environmental pollution.

[0039] The high-temperature purification device for moxa smoke and the moxibustion device incorporating it disclosed in this application integrate the heating device 7, the three-way catalytic device 9, and the heat dissipation device 3 into the airflow path within the parallel double-chamber shell. This allows the moxa smoke to undergo a continuous process of high-temperature heating, catalytic decomposition, and rapid cooling sequentially along the axial direction from the moment it enters the smoke inlet pipe 1. Compared to traditional methods that rely on filter cotton adsorption or single heating purification, this application eliminates the need for frequent replacement of consumables and achieves a more complete decomposition reaction within a shorter path. The heating structure, with its double-layer ceramic tube wall coated with metal resistors, not only significantly improves corrosion resistance and insulation but also allows heat to circulate around the hollow channel 701. The surrounding distribution ensures uniform heating of the smoke, providing stable reaction conditions for subsequent catalysis. Two three-way catalytic converters 9, located in different chambers, form a staged cracking mechanism, which oxidizes tar particles and volatile organic components into harmless gases in sequence, significantly improving catalytic efficiency and load resistance. Combined with the internal multi-channel heat sink 301 structure, the high-temperature gas achieves large-area heat exchange in a limited space, quickly reducing the temperature to a safe emission temperature. The entire device adopts a detachable fixing frame 8 and heat insulation cover design, which facilitates maintenance and replacement and avoids overheating of the outer shell, achieving a unity of miniaturization, modular structure, high purification efficiency and safe operation.

[0040] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high-temperature purification device for moxa smoke, characterized in that, include: The outer shell (2) has a first cavity (202) and a second cavity (203) arranged side by side inside it; The smoke inlet pipe (1) is connected to the first cavity (202) of the outer shell (2), so that the smoke enters the first cavity (202); A heating device (7) is installed inside the first cavity (202) and a hollow channel (701) is provided in its axial direction for heating the moxa smoke entering the first cavity (202) at high temperature. The three-way catalytic device (9) is installed inside the shell (2) on the flow path after the moxa smoke is heated, and is used to catalytically decompose the high-temperature moxa smoke; The heat dissipation device (3) is connected at one end to the second cavity (203) and can cool down the high-temperature smoke after it has been catalytically decomposed by the three-way catalytic device (9). The air intake device (4) is used to guide the moxa smoke to flow sequentially through the heating device (7), the three-way catalytic device (9), and the heat dissipation device (3) for continuous high-temperature treatment and discharge of the moxa smoke; The heating device (7) has a double-layer ceramic structure with an inner ceramic wall and an outer ceramic wall. A metal resistor is wrapped between the inner ceramic wall and the outer ceramic wall. The hollow channel (701) is located on the inner side of the inner ceramic wall.

2. The high-temperature purification device for moxa smoke according to claim 1, characterized in that, The central axis of the hollow channel (701) is parallel to the central axis of the first cavity (202).

3. The high-temperature purification device for moxa smoke according to claim 2, characterized in that, Four leads (702) extend from the heating device (7), two of which are power supply leads and the other two are temperature measurement leads.

4. A high-temperature purification device for moxa smoke according to claim 1, 2, or 3, characterized in that, A fixing frame (8) is provided on the outside of the heating device (7). The heating device (7) is installed in the first cavity (202) through the fixing frame (8), and the fixing frame (8) is covered with heat insulation material.

5. The high-temperature purification device for moxa smoke according to claim 4, characterized in that, The outer shell (2) includes a cavity sidewall (201) and a bottom plate (204). The bottom plate (204) is located at one end of the cavity sidewall (201) away from the smoke inlet pipe (1). The first cavity (202) and the second cavity (203) are connected by a connecting ventilation duct (10) at one end near the bottom plate (204).

6. A high-temperature purification device for moxa smoke according to claim 1 or 5, characterized in that, The length of the second cavity (203) in the axial direction is less than the length of the first cavity (202) in the axial direction, and the end of the first cavity (202) away from the smoke inlet pipe (1) is flush with the end of the second cavity (203).

7. The high-temperature purification device for moxa smoke according to claim 6, characterized in that, Two three-way catalytic converters (9) are provided, and the two three-way catalytic converters (9) are respectively located inside the first cavity (202) and the second cavity (203).

8. The high-temperature purification device for moxa smoke according to claim 7, characterized in that, The heat dissipation device (3) includes multiple heat sinks (301), and a through heat dissipation air duct (304) is provided inside each heat sink (301). The two ends of the heat dissipation device (3) are respectively sealed to the second cavity (203) and the air-guiding device (4) through the first connecting seat (302) and the second connecting seat (303). A heat dissipation fan (5) is provided on one side of the heat dissipation device (3), and the air outlet direction of the heat dissipation fan (5) is set at an angle to the central axis of the second cavity (203).

9. The high-temperature purification device for moxa smoke according to claim 8, characterized in that, A temperature sensor (6) is provided inside the first cavity (202), and the temperature sensor (6) is located between the heating device (7) and the three-way catalytic converter (9). Alternatively, a temperature sensor (6) is provided inside both the first cavity (202) and the second cavity (203). The temperature sensor (6) inside the first cavity (202) is located between the heating device (7) and the three-way catalytic converter (9), and the temperature sensor (6) inside the second cavity (203) is located between the three-way catalytic converter (9) and the heat dissipation device (3).

10. A moxibustion device, characterized in that, The device includes a moxibustion body and a high-temperature purification device for moxa smoke as described in any one of claims 1 to 9. The moxibustion body has a moxibustion cavity for placing and burning moxa materials. The moxibustion body is provided with a moxa smoke output end and a temperature control component. The moxa smoke output end is connected to the smoke inlet pipe (1) of the high-temperature purification device for moxa smoke through a pipe. The temperature control component is used to adjust the temperature of the moxibustion cavity so that the moxa smoke generated by burning moxa materials in the moxibustion cavity is transported into the high-temperature purification device for heating, catalytic cooling and treatment.

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