Air pump type aromatherapy machine

Abstract

The utility model discloses the technical field of aromatherapy machine, disclose a kind of air pump type aromatherapy machine, the air pump type aromatherapy machine includes: visual smoke cavity, atomization component and flow control structure, smoke cavity is equipped with with outside communication's exhaust incense mouth;Atomization component is equipped with for generating smoke atomization nozzle;Flow control structure and atomization component form first buffer cavity by enclosing, flow control structure is equipped with first mist outlet, smoke cavity and first buffer cavity are communicated by first mist outlet, atomization nozzle is located in first buffer cavity.This utility model embodiment has realized by flow control structure and atomization component jointly enclosing to form first buffer cavity, atomization nozzle is located in first buffer cavity, the smoke generated in atomization nozzle flows in first buffer cavity and reduces flow rate, so that larger water drop in smoke directly falls to the bottom of first buffer cavity, ensure that the smoke flowing into smoke cavity does not contain larger water drop, improve the degree of nicety and refinement in smoke cavity.

Description

Technical Field

[0001] This utility model relates to the field of aromatherapy machine technology, specifically to an air pump type aromatherapy machine. Background Technology

[0002] Most aromatherapy diffusers on the market today feature a visible smoke chamber. During operation, they convert fragrance-containing liquids into scented smoke through heating or ultrasonic atomization. The smoke first flows within the chamber, forming a visible smoke pattern, before diffusing outwards, allowing users to observe the flow and experience the effective diffusion of the fragrance. However, during this atomization process, incomplete atomization can easily lead to the formation of large droplets that enter the smoke chamber. This not only interferes with the integrity of the smoke's visual pattern but also makes these droplets more likely to adhere to the inner wall of the chamber, causing visual pollution and severely impacting aesthetics and user experience. Utility Model Content

[0003] In view of the above problems, this utility model provides an air pump-type aroma diffuser to achieve efficient atomization, maintain the essence of the aroma, improve smoke flow, and enhance the overall aesthetics of the aroma diffuser. The air pump-type aroma diffuser includes:

[0004] A visible smoke chamber, wherein the smoke chamber is provided with an exhaust port that communicates with the outside;

[0005] The atomizing component is equipped with an atomizing nozzle for generating smoke;

[0006] The flow control structure has a first buffer chamber and a first mist outlet. The smoke chamber and the first buffer chamber are connected through the first mist outlet, and the atomizing nozzle is located in the first buffer chamber.

[0007] In one alternative embodiment, the atomizing nozzle is provided with an air jet for gas ejection;

[0008] The flow control structure is provided with a flow-blocking part that forms the top surface of the first buffer cavity. The airflow jet direction of the jet nozzle is toward the flow-blocking part, and the flow-blocking part gradually approaches the bottom surface of the first buffer cavity from the center to the edge.

[0009] In one alternative embodiment, the flow control structure is provided with at least one first airflow channel, the first airflow channel connecting the smoke chamber and the first buffer chamber, the first airflow channel being located within the first buffer chamber; the first airflow channel having opposite inlets and outlets, the outlet being connected to the first mist outlet, and the inlet being spaced apart from the bottom surface of the first buffer chamber.

[0010] In one alternative embodiment, the atomizing nozzle includes an air outlet facing the top of the first buffer chamber and positioned above the inlet in the vertical direction.

[0011] In one alternative embodiment, the smoke chamber is provided with a blocking element, and the air pump-type aroma diffuser is also provided with a second buffer chamber, the blocking element forming part of the wall of the second buffer chamber; the wall corresponding to the second buffer chamber is provided with a second mist outlet, and the first mist outlet and the second mist outlet are offset.

[0012] In one alternative embodiment, the blocking member is located above the bottom of the smoke chamber, the blocking member and the wall corresponding to the smoke chamber form the second buffer chamber, and the periphery of the blocking member and the wall corresponding to the smoke chamber form the second mist outlet, and the smoke chamber and the second buffer chamber are connected through the second mist outlet.

[0013] In one alternative embodiment, the side of the blocking member facing the flow-blocking portion is a flow-guiding surface, and the flow-guiding surface gradually moves away from the flow-blocking portion in a direction from the periphery of the flow-guiding surface to the center of the flow-guiding surface.

[0014] In one alternative embodiment, the atomizing component includes a liquid chamber for storing aromatherapy liquid, and a reflux hole is provided on the wall corresponding to the bottom of the first buffer chamber, and the first buffer chamber and the liquid chamber are connected through the reflux hole.

[0015] In one alternative embodiment, the wall corresponding to the first buffer chamber is provided with a vent hole, and the first buffer chamber and the liquid chamber are connected through the vent hole; in the vertical direction, the vent hole is higher than the return hole.

[0016] In one alternative embodiment, the air pump-type aroma diffuser further includes a housing, a fan, and a second frame. The housing has a receiving cavity, and the second frame is disposed within the receiving cavity. The second frame divides the receiving cavity into a smoke chamber and a mounting cavity arranged vertically upwards and downwards. The atomizing component and the fan are disposed in the mounting cavity, and the second buffer cavity is located below the smoke chamber.

[0017] The second frame is provided with multiple exhaust vents, which are connected to the air outlet of the fan and the smoke chamber. The multiple exhaust vents are arranged on the outer periphery of the second buffer chamber, and each exhaust vent is configured to tilt upwards along a uniform circumferential direction to discharge air.

[0018] In this embodiment of the invention, a first buffer chamber is formed by the flow control structure and the atomizing component. The flow control structure is provided with a first mist outlet. The smoke chamber and the first buffer chamber are connected through the first mist outlet. The atomizing nozzle is located in the first buffer chamber. The smoke generated by the atomizing nozzle flows in the first buffer chamber, reducing the flow rate. This allows larger water droplets in the smoke to fall directly to the bottom of the first buffer chamber, while smaller smoke droplets gradually flow from the first mist outlet into the smoke chamber. This ensures that the smoke flowing into the smoke chamber does not contain large water droplets, improving the aesthetics of the smoke chamber.

[0019] At the same time, the aromatherapy liquid is atomized and formed into smoke by impacting and shearing it with high-speed airflow. This not only preserves the purity and longevity of the aromatherapy fragrance, but also retains the original ingredients and natural scent of the aromatherapy liquid, further enhancing the user experience.

[0020] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 A perspective view of the air pump-type aroma diffuser provided in an embodiment of the present invention is shown;

[0023] Figure 2 A cross-sectional view of the air pump-type aroma diffuser provided in an embodiment of the present invention is shown;

[0024] Figure 3 An exploded view of the air pump-type aroma diffuser provided in an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of the flow control structure in the air pump-type aroma diffuser provided in this embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram of the flow control structure in the air pump-type aroma diffuser provided in this embodiment of the present invention is shown;

[0027] Figure 6 This diagram illustrates the assembly of the flow control structure and atomizing component in the air pump-type aroma diffuser provided in this embodiment of the invention.

[0028] Figure 7A cross-sectional view of the airflow control structure and atomizing component assembly in the air pump-type aroma diffuser provided in this embodiment of the present invention is shown.

[0029] Figure 8 It shows Figure 7 Enlarged view of point A in the middle;

[0030] Figure 9 This diagram shows a schematic representation of the atomizing component in the air pump-type aroma diffuser provided in this embodiment of the invention.

[0031] Figure 10 This diagram shows a schematic representation of the atomizing component in the air pump-type aroma diffuser provided in this embodiment of the invention.

[0032] Figure 11 This diagram shows a schematic representation of the structure of the second frame in the air pump-type aroma diffuser provided in an embodiment of the present invention.

[0033] Figure 12 A cross-sectional view of the second frame of the air pump-type aroma diffuser provided in this embodiment of the present invention is shown;

[0034] Figure 13 A cross-sectional view of the flow control structure and atomizing component assembly in the air pump-type aroma diffuser provided in this embodiment of the present invention is shown.

[0035] The reference numerals in the detailed embodiments are as follows:

[0036] 100. Air pump type aroma diffuser;

[0037] 1. Shell; 11. Smoke chamber; 12. Aroma outlet; 13. Upper shell; 14. Lower shell; 141. Airflow inlet;

[0038] 2. Atomizing assembly; 21. First frame; 211. Atomizing nozzle; 212. Air jet nozzle; 213. Liquid outlet; 214. Second airflow channel; 215. Liquid guiding channel; 216. Return hole; 217. Vent hole;

[0039] 22. Liquid storage bottle; 221. Liquid chamber; 23. Air pump component; 24. Air tube; 25. Liquid delivery pipette;

[0040] 3. Flow control structure; 31. First mist outlet; 32. Baffle; 33. First airflow channel;

[0041] 4. First buffer chamber; 5. Blocking component; 51. Second mist outlet; 52. Guide surface; 6. Second buffer chamber;

[0042] 7. Fan; 71. Air outlet; 72. Air inlet;

[0043] 8. Second frame; 81. Exhaust vent; 82. Air duct; 83. Upper air duct; 84. Lower air duct; 85. Air guide baffle; 86. First end; 87. Second end; 88. Connecting channel. Detailed Implementation

[0044] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0045] Please see Figure 1 , Figure 1 A perspective view of an embodiment of the air pump type aroma diffuser 100 of this utility model is shown, as follows: Figure 2 As shown, the air pump type aroma diffuser 100 includes: a visible smoke chamber 11, an atomizing component 2, and a flow control structure 3. The smoke chamber 11 is provided with an aroma outlet 12 communicating with the outside; the atomizing component 2 is provided with an atomizing nozzle 211 for generating smoke; the flow control structure 3 has a first buffer chamber 4 and a first mist outlet 31; the smoke chamber 11 and the first buffer chamber 4 are connected through the first mist outlet 31; and the atomizing nozzle 211 is located within the first buffer chamber 4.

[0046] like Figure 2 and Figure 3 As shown, the atomizing component 2 includes an air pump 23 and a liquid storage bottle 22. The liquid storage bottle 22 stores aromatherapy liquid. At the atomizing nozzle 211, the high-speed airflow generated by the air pump 23 shears and atomizes the aromatherapy liquid flowing out of the liquid storage bottle 22 to form micron-sized smoke. The flow speed of the smoke in the first buffer chamber 4 gradually slows down. Larger water droplets will fall back to the bottom surface of the first buffer chamber 4 during the flow. Fine smoke flows from the first mist outlet 31 into the smoke chamber 11, and then flows out to the outside from the fragrance outlet 12.

[0047] like Figure 2 , Figure 4 , Figure 5 as well as Figure 6 As shown, the flow control structure 3 is provided with a first buffer chamber 4, the atomizing component 2 forms the bottom of the first buffer chamber 4, the flow control structure 3 is provided with a first mist outlet 31, the smoke chamber 11 and the first buffer chamber 4 are connected through the first mist outlet 31, the atomizing nozzle 211 is located in the first buffer chamber 4, the smoke generated by the atomizing nozzle 211 first flows in the first buffer chamber 4, the first buffer chamber 4 forms a barrier to the smoke, so that the larger droplets in the smoke cannot follow the airflow and adhere to the wall of the first buffer chamber 4 or fall directly to the bottom of the first buffer chamber 4; the fine smoke will gradually flow from the first mist outlet 31 into the smoke chamber 11, reducing the risk of larger droplets flowing into the smoke chamber 11 with the smoke, improving the aesthetics of the smoke's visual morphology and reducing the risk of water accumulation in the smoke chamber 11.

[0048] In one implementation, the air pump-type aroma diffuser 100 further includes an integrated housing 1 and a second frame 8. The housing 1 has a hollow cavity (not shown in the figure). The second frame 8 is installed in the cavity and fixedly connected to the housing 1 to divide the cavity into a smoke chamber 11 and an installation chamber (not shown in the figure) arranged vertically. The atomizing component 2 is fixedly connected to the second frame, and in the vertical direction, the smoke chamber 11 is located above the atomizing component 2. The aroma outlet 12 is set on the housing 1 corresponding to the smoke chamber 11. The smoke chamber 11 communicates with the outside through the aroma outlet 12, allowing smoke to flow out from the aroma outlet 12. The atomizing component 2 and other electronic components are set in the installation chamber to prevent smoke from entering the installation chamber, corroding the atomizing component 2 and other electronic components, and affecting the normal operation of the powered product.

[0049] In another implementation, such as Figure 2 and Figure 3 As shown, the housing 1 is a two-part structure, comprising an upper housing 13 and a lower housing 14. The upper housing 13 is connected to the upper end of the second frame 8 to form the smoke chamber 11. The upper housing 13 is transparent, making the smoke chamber 11 visible. The lower housing 14 is connected to the lower end of the second frame 8 to form an installation cavity. Most of the atomizing components 2 are located within the installation cavity, such as the air pump 23 and the liquid storage bottle 22. A connecting channel 88 is provided in the central area of ​​the second frame 8. The atomizing components 2 are placed within the connecting channel 88 and fixedly connected to the second frame 8. The sidewalls of the atomizing components 2 and the connecting channel 88 are sealed to prevent smoke generated at the atomizing nozzle 211 from flowing into the installation cavity.

[0050] The flow control structure 3 is fixedly connected to the atomizing component 2, forming the upper cover of the atomizing nozzle 211, completely enclosing it. The atomizing component 2 partially forms the bottom of the first buffer chamber 8. The top of the atomizing nozzle 211 can pass through the connecting channel 88 and be located on the upper side or the lower side of the second frame 8, which is not limited here. Similarly, the flow control structure 3 can also pass through the connecting channel 88 such that the top of the flow control structure 3 is located on the upper side or the lower side of the second frame 8, which is not limited here.

[0051] In one implementation, such as Figure 7 and Figure 8As shown, the atomizing nozzle 211 is provided with a gas outlet 212 for gas ejection, and the flow control structure 3 is provided with a baffle 32 forming the top surface of the first buffer chamber 4. The airflow ejection direction of the gas outlet 212 is towards the baffle 32, and the gas outlet 212 is offset from the first mist outlet 31. The airflow ejected from the gas outlet 212 impacts the aromatherapy liquid to form smoke, and drives the smoke to move along the airflow direction. The baffle 32 is positioned in the airflow ejection direction of the gas outlet 212, forming an effective blockage of the smoke. Incompletely atomized aromatherapy liquid impacts the baffle 32 along the airflow ejection direction, and the baffle 32 effectively intercepts larger droplets. The baffle 32 gradually approaches the bottom surface of the first buffer chamber 4 from the center to the edge, that is, the baffle 32 is constructed as a smooth concave surface. The center of the baffle 32 is set away from the bottom surface of the first buffer chamber 4, while the edge of the baffle 32 is set close to the bottom surface of the first buffer chamber 4, making the first buffer chamber 4 a gradually narrowing flow guiding space. The high-speed airflow from the jet nozzle 212 carries the sheared smoke towards the baffle 32 along the airflow direction. The gradually narrowing first buffer chamber 4 causes the smoke to diffuse from the center area to the edge area of ​​the baffle 32, ultimately allowing the smoke to enter the smoke chamber 11 through the first mist outlet 31 in a stable and uniform state. This embodiment not only significantly improves the fineness and uniformity of essential oil atomization, but also enhances the directionality and concentration of smoke flow through the guiding effect of the baffle 32, effectively avoiding turbulence and condensation. At the same time, the concave design of the baffle 32 allows un-atomized aromatherapy droplets to collide and coalesce, then flow back to the bottom of the first buffer chamber 4 along the baffle 32, preventing large liquid particles from entering the smoke chamber 11, further improving the quality and visual appeal of the output smoke.

[0052] Furthermore, such as Figure 4 As shown, the first mist outlet 31 is located away from the center of the baffle 32. The airflow direction of the jet nozzle 212 is directed towards the center or close to the center of the baffle 32. The first mist outlet 31 is located at the edge of the baffle 32, which means that the smoke after collision and diffusion at the center of the baffle 32 must flow fully along the surface of the baffle 32 to the edge before it can be output. This prolongs the residence path and time of the smoke in the first buffer chamber 4, promoting further homogenization and slow settling of the smoke particles. The baffle 32 effectively utilizes its guiding effect, which not only prevents high-speed airflow from carrying unatomized droplets directly out, but also significantly improves the uniformity and stability of the smoke output from the first atomization port.

[0053] In one implementation, such as Figure 4 and Figure 5As shown, the flow control structure 3 is provided with at least one first airflow channel 33, which connects the smoke chamber 11 and the first buffer chamber 4. The first airflow channel 33 is located inside the first buffer chamber 4. The first airflow channel 33 has opposite inlets and outlets. The outlet is connected to the first mist outlet 31, and the inlet is spaced apart from the bottom surface of the first buffer chamber 4.

[0054] The first airflow channel 33 is tubular or cylindrical and is disposed within the first buffer chamber 4. Vertically, the outlet at the upper end of the first airflow channel 33 is connected to the smoke chamber 11 through the first mist outlet 31, and the inlet at the lower end of the first airflow channel 33 is connected to the first buffer chamber 4. The inlet of the first airflow channel 33 is spaced apart from the bottom surface of the first buffer chamber 4, so that the smoke in the first buffer chamber 4 can smoothly flow from the inlet into the first airflow channel 33, then along the first airflow channel 33 from the lower end to the upper end outlet, and then out through the first mist outlet 31. The first airflow channel 33 has a certain height to guide the smoke to be transported smoothly from bottom to top.

[0055] In this embodiment, an orderly flow path is established between the first buffer chamber 4 and the smoke chamber 11 through the first airflow channel 33, extending the smoke flow path. Because the airflow velocity generated by the air pump 23 gradually decreases along the flow path, larger droplets gradually fall due to gravity and cannot flow with the airflow; smaller smoke particles enter the smoke chamber 11 with the airflow. By extending the smoke flow path, the interception rate of larger droplets entering the smoke chamber 11 is improved. The spacing between the lower end of the first airflow channel 33 and the bottom of the chamber prevents droplets deposited at the bottom of the first buffer chamber 4 from being directly sucked in.

[0056] Furthermore, such as Figure 8 As shown, the atomizing nozzle 211 includes a jet nozzle 212, which faces the top of the first buffer chamber 4. Vertically, the jet nozzle 212 is located above the inlet. Vertically, the jet nozzle 212 is higher than the inlet, and the airflow from the jet nozzle 212 towards the top of the first buffer chamber 4 flows towards the central area of ​​the baffle 32, preventing airflow or smoke from directly entering the first airflow channel 33 from the inlet. The smoke formed by the high-speed impact of the airflow first rushes towards the baffle 32, then diffuses towards the edge of the baffle 32. Under the action of gravity and airflow, the smoke naturally settles and gathers at a lower level, eventually entering the first airflow channel 33 from the inlet, moving along the first airflow channel 33 to the upper outlet, and then flowing out from the first mist outlet 31.

[0057] The jet airflow of the jet nozzle 212 is directed toward or near the center of the baffle 32. The upper end of the first airflow channel 33 is connected to the first atomizing port located at the edge of the baffle 32. The inlet of the first airflow channel 33 is close to the bottom surface of the first buffer chamber 4. The jet nozzle 212 and the inlet of the first airflow channel 33 are staggered, which can effectively block the direct flow path between the jet nozzle 212 and the first mist outlet 31, ensuring that the smoke can be fully buffered, slowed down and settled. This not only avoids the turbulence caused by insufficiently atomized droplets and high-speed airflow rushing into the smoke chamber 11, but also significantly improves the uniformity of the smoke, making the final output smoke more delicate and stable, and ensuring the visual appeal of the smoke flowing into the smoke chamber 11.

[0058] In one implementation, such as Figure 2 and Figure 3 As shown, the air pump type aroma diffuser 100 also includes a blocking member 5, and the air pump type aroma diffuser 100 is also provided with a second buffer chamber 6. The blocking member 5 forms part of the wall of the second buffer chamber 6. The wall corresponding to the second buffer chamber 6 is provided with a second mist outlet 51, and the first mist outlet 31 and the second mist outlet 51 are staggered.

[0059] The first buffer chamber 4 and the second buffer chamber 6 are connected through the first mist outlet 31, and the second buffer chamber 6 and the smoke chamber 11 are connected through the second mist outlet 51. The blocking member 5 forms part of the wall of the second buffer chamber 6, and the first mist outlet 31 and the second mist outlet 51 are staggered, so that the smoke flowing out of the first buffer chamber 4 must first enter the second buffer chamber 6 to fully diffuse and slow down, and then change its flow direction through the staggered second mist outlet 51 before entering the main space of the smoke chamber 11.

[0060] This embodiment employs a double buffering mechanism within the first buffer chamber 4 and the second buffer chamber 6 to deflect the smoke. Furthermore, by staggering the first mist outlet 31 and the second mist outlet 51, the smoke is forced to change direction. This effectively extends the smoke path and enhances the turbulent mixing effect. It not only significantly improves the uniformity and stability of the smoke particles but also completely prevents high-speed airflow from carrying unatomized droplets directly into the smoke chamber 11. At the same time, it further disrupts the directionality of the smoke flow, allowing it to diffuse more naturally and gently within the smoke chamber 11. Ultimately, this achieves the beneficial effects of delicate and stable smoke output and a uniform and pleasant visual effect.

[0061] The blocking component 5 is located above the second frame 8, and the blocking component 5 and the second frame 8 form a second buffer chamber 6 at a distance. The atomizing component 2 is fixedly connected to the side wall of the connecting channel 88, and the first mist outlet 31 on the flow control structure 3 is connected to the second buffer chamber 6. The periphery of the blocking component 5 and the wall corresponding to the smoke chamber 11 form a second mist outlet 51 at a distance, and the smoke chamber 11 and the second buffer chamber 6 are connected through the second mist outlet 51.

[0062] Furthermore, the flow control structure 3 is located within the second buffer chamber 6 via the connecting channel 88, forming part of the wall of the second buffer chamber 6 to prevent the second frame 8 from being too thick. The flow control structure 3 is located within the second buffer chamber 6 and is spaced apart from the blocking member 5. The blocking member 5 is the upper wall of the second buffer chamber 6, and the first mist outlet 31 faces the blocking member 5. When smoke flows out from the first mist outlet 31 and enters the second buffer chamber 6, it undergoes a second buffering and uniform dispersion within the second buffer chamber 6. The second mist outlet 51 is located at the periphery of the blocking member 5: that is, the second mist outlet 51 is far from the central area of ​​the blocking member 5. The smoke in the second buffer chamber 6 enters the smoke chamber 11 uniformly and at a low speed through the second mist outlet 51. This embodiment significantly extends the flow and time of the smoke by setting up a double buffer chamber with a first buffer chamber 4 and a second buffer chamber 6, effectively removing un-atomized droplets in the smoke, and further homogenizing the smoke concentration and flow rate. Finally, a highly stable, delicate and soft smoke landscape is formed in the smoke chamber 11, which greatly enhances the visual aesthetics and product quality.

[0063] In other embodiments, the blocking member 5 may be disposed on the second frame 8, and the second buffer cavity 6 may be disposed within the second frame 8; or the blocking member 5 may be located below the second frame 8, and the formed second buffer cavity 6 may be located within the mounting cavity, with the second mist outlet 51 communicating with the smoke chamber 11 through the connecting channel 88; the formation and location of the second buffer cavity 6 and the location of the flow control structure 3 are not limited here, as long as it is possible to achieve that the smoke flows out from the first mist outlet 31, enters the second buffer cavity 6, and then enters the smoke chamber 11 through the second mist outlet 51.

[0064] Furthermore, such as Figure 2 As shown, the side of the blocking member 5 facing the flow-blocking part 32 is a guide surface 52. The guide surface 52 gradually moves away from the flow-blocking part 32 along the direction from the periphery of the guide surface 52 to the center of the guide surface 52. The guide surface 52 is a smooth concave surface. The concave surface gradually moves away from the flow-blocking part 32 from the edge to the center, so that the smoke flowing out of the first mist outlet 31 first rushes to the guide surface 52, and then spreads to the surroundings along the guide surface 52. This effectively increases the smoke diffusion space and extends the smoke flow path. At the same time, the guide surface 52 is a smooth concave surface, which not only significantly enhances the buffering effect and flow uniformity of the smoke in the second buffer chamber 6, but also effectively avoids the turbulence and particle splashing caused by the direct rush of smoke. This allows the smoke to finally enter the smoke chamber 11 in a softer and more uniform manner through the edge second mist outlet 51, which greatly improves the stability and visual appeal of the smoke output.

[0065] In one implementation, such as Figure 2 and Figure 3As shown, the side of the blocking member 5 away from the flow control structure 3 forms the bottom surface of the smoke chamber 11, and this side is provided with arc-shaped protrusions of different heights to form a rockery landscape. The second mist outlet 51 is annular and located at the edge of the blocking member 5. When the smoke flows from the second mist outlet 51 into the smoke chamber 11, it continuously flows out from the periphery of the blocking member 5. As the smoke gradually moves towards the center of the blocking member 5, it can flow or accumulate along the surface of the arc-shaped protrusions. The arc-shaped protrusions of different heights not only increase the complexity of the smoke flow path, but also create a sense of visual hierarchy through the staggered contours. When the smoke spreads slowly on the surface of the arc-shaped protrusions, it presents a natural swirling effect, ultimately creating a dynamic landscape like flowing clouds in the mountains within the smoke chamber 11, greatly enhancing the decorative and artistic value of the product.

[0066] In one implementation of this embodiment, such as Figure 7 , Figure 8 as well as Figure 9 As shown, the atomizing component 2 includes a liquid chamber 221 for storing aromatherapy liquid. A reflux hole 216 is provided on the wall corresponding to the bottom of the first buffer chamber 4, and the first buffer chamber 4 and the liquid chamber 221 are connected through the reflux hole 216. The liquid chamber 221 is located inside the liquid storage bottle 22, or the lower housing 14 can be the liquid storage bottle 22, with the lower housing 14 and the second frame 8 connected and enclosing to form the liquid chamber 221; this is not limited here.

[0067] like Figure 7 and Figure 8 As shown, the atomizing nozzle 211 is provided with a liquid outlet 213, and the jet nozzle 212 is located below the liquid outlet 213. The jet direction of the airflow from the jet nozzle 212 is perpendicular to the liquid outlet direction of the liquid outlet 213 and is horizontal. It is set close to the bottom of the liquid outlet 213 so that when the liquid flows out of the liquid outlet 213 along the liquid outlet direction, it can be impacted and atomized by the high-speed airflow from the jet nozzle 212 to form smoke. The atomizing component 2 includes a first frame 21 and an air pump 23. A liquid chamber 221 is provided on the side of the first frame 21 away from the flow control structure 3, and a liquid guide tube 25 is provided in the liquid chamber 221. The first frame 21 is provided with a second airflow channel 214 and a liquid guide channel 215. One end of the second airflow channel 214 is connected to the first buffer chamber 4 through the air jet 212, and the other end is connected to the outlet of the air pump 23. One end of the liquid guide channel 215 is connected to the first buffer chamber 4 through the liquid outlet 213, and the other end is connected to the liquid guide tube 25 inserted into the first frame 21. The end of the liquid guide tube 25 away from the liquid guide channel 215 is located in the aromatherapy liquid in the liquid chamber 221.

[0068] In the vertical direction of the air pump-type aroma diffuser 100, the air jet 212 is located below the liquid outlet 213. The air jet direction of the air jet 212 is vertically upward, while the liquid outlet direction of the liquid outlet 213 is horizontal. The air jet direction of the air jet 212 is aligned with the upper part of the liquid outlet 213, so that the air jet from the air jet 212 can perform high-speed impact shearing on the aromatherapy liquid flowing out of the liquid outlet 213, thereby improving the conversion rate of aromatherapy liquid into smoke.

[0069] One end of the second airflow channel 214 inside the first frame 21 is connected to the first buffer chamber 4 through the jet nozzle 212, and the other end is connected to the outlet of the air pump component 23. The high-speed airflow flows out from the outlet of the air pump component 23 and enters the second airflow channel 214, flows along the second airflow channel 214, and finally flows out from the jet nozzle 212 and flows to the liquid outlet 213, cutting the aromatherapy liquid flowing out of the liquid outlet 213 into fine smoke, which greatly improves the atomization efficiency and particle fineness of the atomizing nozzle 211.

[0070] The liquid chamber 221 is located inside the storage bottle 22 and is used to hold the aromatherapy liquid. One end of the liquid guide tube 25 is placed in the aromatherapy liquid, and the other end is connected to one end of the liquid guide channel 215. When the air pump 23 starts to work, the high-speed airflow from the output end of the air pump 23 flows rapidly from the atomizing end to the jet nozzle 212 along the second airflow channel 214 and rushes towards the liquid outlet 213, which increases the airflow speed in the area of ​​the liquid outlet 213, causing the air pressure in the area of ​​the liquid outlet 213 to decrease. This causes the aromatherapy liquid to be drawn from the lower end of the liquid guide tube 25 into the channel of the liquid guide tube 25. The aromatherapy liquid rises along the channel of the liquid guide tube, flows out from the upper end of the liquid guide tube 25 into the liquid guide channel 215, moves along the liquid guide channel 215, and then flows out from the liquid outlet 213. It is impacted and sheared into smoke by the high-speed airflow from the jet nozzle 212. This embodiment achieves precise control of airflow and liquid flow rate through an independent liquid guiding channel 215 and a second airflow channel 214, avoiding mutual interference and ensuring that the aromatherapy liquid can flow stably from the liquid outlet 213, thus providing uniformity of the smoke generated by the atomizing nozzle 211. The liquid guiding tube 25 is immersed in the aromatherapy liquid in the liquid chamber 221, ensuring that the aromatherapy liquid in the liquid chamber 221 is continuously delivered to the liquid outlet 213, preventing the aromatherapy liquid from being interrupted in the atomizing nozzle 211 or the generation of air bubbles in the liquid chamber 221, and ensuring that the atomizing nozzle 211 produces fine and uniform smoke.

[0071] like Figure 9As shown, the first frame 21 is fixedly connected to the flow control structure 3. The first frame 21 partially forms the bottom wall of the first buffer chamber 4. A return hole 216 is provided on the first frame 21. The first buffer chamber 4 and the liquid chamber 221 are connected through the return hole 216, and the inlet of the return hole 216 is lower than the bottom surface of the first buffer chamber 4. By providing a return hole 216 on the first frame 21 that is lower than the bottom surface of the first buffer chamber 4, the first buffer chamber 4 and the liquid chamber 221 are connected through the return hole 216 to form a connecting loop between the first buffer chamber 4 and the liquid chamber 221. During the atomization process in the first buffer chamber 4, any aromatherapy liquid that is not atomized or condensed in time can naturally flow back into the liquid chamber 221 through the return hole 216 by gravity, thus realizing the recovery of the aromatherapy liquid and avoiding waste. Meanwhile, the return hole 216 is lower than the bottom surface of the first buffer chamber 4, which can effectively prevent excessive liquid accumulation in the first buffer chamber 4 from affecting the normal atomization process, avoid blockage caused by liquid accumulation, ensure the stability and reliability of the atomization component 2 in long-term operation, and reduce the waste of essential oil and reduce the maintenance frequency.

[0072] Furthermore, such as Figure 9 As shown, the bottom wall of the first buffer chamber 4 is provided with a vent hole 217, and the first buffer chamber 4 and the liquid chamber 221 are connected through the vent hole 217; in the vertical direction, the vent hole 217 is higher than the return hole 216.

[0073] A vent 217 is provided on the first frame 21. The first buffer chamber 4 and the liquid chamber 221 are connected through the vent 217, which is located inside the first buffer chamber 4. The vent 217 is higher than the bottom surface of the first buffer chamber 4 and lower than the jet nozzle 212. The first buffer chamber 4 and the liquid chamber 221 achieve air pressure balance through the vent 217. The airflow in the first buffer chamber 4 can enter the liquid chamber 221 in a timely manner through the vent 217, avoiding the decrease in air pressure in the liquid chamber 221 due to the reduction of liquid, which would cause the aromatherapy liquid in the outlet 213 to flow out smoothly or be interrupted. This ensures that the aromatherapy liquid in the liquid chamber 221 can flow out smoothly from the outlet 213 along the liquid guide tube 25 and the liquid guide channel 215, improving the uniformity of the smoke generated by the atomizing nozzle 211. Meanwhile, the opening of the vent 217 located in the first buffer chamber 4 is higher than the bottom surface of the first buffer chamber 4, preventing the backflowing liquid from flowing back into the vent 217 and clogging it. The vent 217 being lower than the jet nozzle 212 can prevent the airflow ejected from the jet nozzle 212 from directly entering the vent 217. At the same time, it also prevents the smoke generated by the atomizing nozzle 211 from directly entering the vent 217, thus preventing the vent 217 from being blocked by liquid. This maintains the stability and continuity of the atomization process of the air pump aromatherapy machine 100, improving the reliability of the product and the user experience.

[0074] Furthermore, such as Figure 6 and Figure 7As shown, the outlet of the air pump 23 is connected to the end of the second airflow channel 214 located on the first frame 21 away from the jet nozzle 212 via the air pipe 24. The liquid storage bottle 22 has a bottle mouth, which is inserted into the first frame 21 and fixedly connected to the first frame 21 via a snap-fit ​​structure or a threaded structure. A sealing element is provided between the outer wall of the bottle mouth and the first frame 21 to prevent the aromatherapy liquid from flowing out. The air pump 23, air pipe 24, and liquid storage bottle 22 are all enclosed in the lower housing 14 to prevent collisions with external structures and extend the product's service life.

[0075] In one implementation of this embodiment, such as Figure 10 , Figure 11 as well as Figure 12 As shown, the air pump type aroma diffuser 100 also includes a housing 1, a fan 7, and a second frame 8. The housing 1 has a receiving cavity, and the second frame 8 is located in the receiving cavity. The second frame 8 divides the receiving cavity into a smoke chamber 11 and an installation cavity arranged vertically upwards and downwards. The atomizing component 2 and the fan 7 are located in the installation cavity, and the second buffer cavity 6 is located below the smoke chamber 11. The second frame 8 has multiple exhaust ports 81, which are connected to the air outlet 71 of the fan 7 and the smoke chamber 11. The multiple exhaust ports 81 are arranged circumferentially outwards along the second buffer cavity 6, and each exhaust port 81 is configured to tilt upwards and discharge air in a uniform circumferential direction.

[0076] The housing 1 includes an upper housing 13 and a lower housing 14. The upper housing 13 and the upper end of the second frame 8 are fixedly connected to form a smoke chamber 11. The lower housing 14 and the lower end of the second frame 8 are fixedly connected to form an installation cavity. The atomizing component 2 and the fan 7 are both located in the installation cavity. The end of the first frame 21 away from the liquid chamber 221 is embedded in the connecting channel 88 and fixedly connected to the second frame 8. The upper end surface of the second frame 8 forms part of the wall of the second buffer cavity 6. The periphery of the upper end surface of the second frame 8 and the periphery of the blocking member 5 constitute the second mist outlet 51.

[0077] like Figure 11As shown, the second frame 8 has multiple exhaust vents 81 on its top surface near the smoke chamber 11. Each exhaust vent 81 is connected to the air outlet 71 of the fan 7. When the fan 7 is working, the airflow flows from the air outlet 71 of the fan 7 to the exhaust vent 81 and then enters the smoke chamber 11 from the exhaust vent 81. The multiple exhaust vents 81 are arranged at intervals along the outer perimeter of the second buffer chamber 6, and all exhaust vents 81 are inclined upward along the same circumferential direction, forming an upward air curtain that rotates around the circumference. This air curtain, on the one hand, envelops and constrains the smoke overflowing from the second buffer chamber 6, preventing the smoke from spreading disorderly. On the other hand, it guides the smoke to rise in a spiral through the directional airflow that is inclined upward, which significantly enhances the orderliness and dynamic aesthetics of the smoke in the chamber. At the same time, the rotating airflow promotes the full mixing of smoke and air, further improving the uniformity and diffusion of smoke particles, and finally achieving the beneficial effects of stable smoke output and rich visual expression.

[0078] An arc-shaped air duct 82 is provided inside the second frame 8. The fan 7 is located between the first and last ends of the air duct 82. The air inlet 72 and the air outlet 81 of the fan 7 are connected through the air duct 82, that is, the air inlet 72 of the fan 7 is connected to the first end of the air duct 82. Multiple air outlets 81 are connected to the air duct 82 and are evenly distributed to ensure that the airflow is efficiently delivered to the smoke chamber 11.

[0079] like Figure 12 and Figure 13 As shown, the fan 7 is installed inside the second frame 8, and the air outlet 71 is located inside the second frame 8 and faces the beginning of the air duct 82 to supply airflow to the air duct 82. The end of the air duct 82 is closed. Along the airflow direction, an exhaust port 81 is set at regular intervals at the top of the air duct 82, so that part of the airflow flows out from the exhaust port 81 into the smoke chamber 11, and the remaining airflow continues to move in the air duct 82. After reaching the next adjacent row of exhaust ports 81, some airflow flows from the corresponding exhaust port 81 into the smoke chamber 11. By setting multiple exhaust ports 81 at intervals on the top surface of the air duct 82 near the smoke chamber 11, airflow is emitted from all four sides of the bottom surface of the smoke chamber 11, forming a uniform and stable circumferential air curtain. The smoke from all sides flows towards the center of the bottom surface of the smoke chamber 11, enhancing the interaction between the smoke and the landscape and the visual sense of layering.

[0080] The air inlet 72 of the fan 7 is exposed outside the second frame 8. The fan 7 is located inside the lower housing 14. The lower housing 14 is provided with an airflow inlet 141. The air inlet 72 of the fan 7 is connected to the outside through the airflow inlet 141. The outside airflow enters the lower housing 14 through the airflow inlet 141. When the fan 7 is started, the airflow enters from the air inlet 72 of the fan 7, is accelerated by the fan 7, and flows out from the air outlet 71 into the air duct 82. The airflow flows along the air duct 82 and flows out from the exhaust port 81 into the smoke chamber 11. The airflow flowing out from the exhaust port 81 impacts the smoke in the smoke chamber 11, accelerates the flow of smoke, and flows out from the smoke outlet 12 to the outside.

[0081] Multiple air guide baffles 85 are spaced apart in the air duct 82. The first end 86 of each air guide baffle 85 is located in the air duct to divide the air duct 82 into an upper air duct 83 and a lower air duct 84. The second end 87 of the air guide baffle 85 extends to the bottom of a row of air outlets 81 and connects to the upper surface of the second frame 8. Adjacent lower air ducts 84 are connected to each other to ensure that the airflow in the air duct 82 can flow to all positions in the air duct 82, so that the exhaust outlet 81 far away from the air outlet 71 in the air duct 82 can also have airflow, ensuring that the airflow can flow out from the bottom of the smoke chamber 11. The first end 86 of the air guide baffle 85 is set to face the direction of the airflow in the air duct 82 to ensure that the airflow can be separated. At the same time, it guides the airflow smoothly into the upper air duct 83 and the lower air duct 84. This not only significantly improves the uniformity and stability of the airflow distribution, but also reduces the energy consumption and operating noise of the fan 7. Finally, it outputs a uniform and gentle air curtain through the exhaust port 81, which enhances the guidance and control effect of smoke and improves the overall performance of the product and the user experience.

[0082] Within the air duct 82, each row of air outlets 81 is equipped with a corresponding air guide baffle 85. The first end 86 of each air guide baffle 85 extends into the interior of the air duct 82, dividing the section of the air duct 82 into an upper air duct 83 and a lower air duct 84. The second end 87 of the air guide baffle 85 extends below the exhaust outlet 81 and is fixedly connected to the top surface of the second frame 8. That is, each row of air outlets 81 corresponds to an upper air duct 83, and the starting point of each lower air duct 84 is at the first end 86 of the corresponding air guide baffle 85, and the ending point is at the second end 87 of the air guide baffle 85. Adjacent lower air ducts 84 are connected to allow the airflow to continue flowing forward. The first end 86 of the air guide baffle 85 is positioned facing the direction of the incoming airflow within the air duct 82, ensuring that the airflow exiting from the exhaust outlet 71 of the fan 7 can be smoothly separated and enter the upper air duct 83 and the lower air duct 84 respectively.

[0083] The air guide baffle 85 gradually approaches the smoke chamber 11 along the direction from the first end 86 to the second end 87, and / or the width of the upper air duct 83 gradually decreases along the airflow direction of the upper air duct 83, so that the exhaust port 81 is configured to tilt upwards along a uniform circumferential direction.

[0084] The air guide baffle 85 gradually tilts towards the smoke chamber 11 from the first end 86 to the second end 87. When the airflow flows in the upper air duct 83, it can naturally follow the guiding trend of the air guide baffle 85 and smoothly guide the airflow from the depth of the air duct 82 to the exhaust port 81 area. This effectively reduces the energy loss and eddy generation when the airflow turns, while ensuring that the airflow is more concentrated and more accurately ejected from the exhaust port 81. This enhances the directionality and coverage uniformity of the air curtain, thereby more effectively guiding and controlling the movement trajectory of the smoke in the smoke chamber 11, and improving the stability and visual appeal of the smoke formation.

[0085] The width of the upper airflow duct 83 gradually decreases along the airflow direction of the upper airflow duct 83, that is, the upper airflow duct 83 is a gradually narrowing flow channel, which makes the airflow speed gradually increase during the flow of the upper airflow duct 83, while effectively avoiding airflow diffusion and energy loss, making the airflow ejected from the exhaust port 81 more concentrated and stable, enhancing the air curtain's suppression and guiding effect on smoke, and further optimizing the movement pattern and visualization of smoke in the cavity.

[0086] Furthermore, such as Figure 6 As shown, the bottom surface of the second frame 8 forming the second buffer cavity 6 is concave, and the blocking member 5 is partially installed in the central area of ​​the concave surface. The concave surface gradually moves towards the guide surface 52 from the center of the concave surface towards the edge.

[0087] The lower part of the blocking member 5, away from the smoke chamber 11, is installed on the concave surface and fixedly connected to the second frame 8. The concave surface of the second frame 8, the outer surface of the baffle plate, and the guide surface 52 of the blocking member 5 together form the second buffer chamber 6. The concave surface has an inclined structure that gradually approaches the guide surface 52 from the center to the edge, so that the height of the second buffer chamber 6 gradually decreases from the center to the edge. After the smoke enters the center of the second buffer chamber 6 from the first mist outlet 31, it naturally flows to the edge as the height of the second buffer chamber 6 changes: the gradually narrowing space formed by the inclined concave surface and the guide surface 52 accelerates the diffusion of smoke and promotes the inertial separation of un-atomized droplets, realizing secondary uniform flow and efficient buffering of smoke, and improving the fineness and visual appeal of the smoke output.

[0088] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by those skilled in the art to which the embodiments of this utility model pertain.

[0089] In the description of this embodiment of the present invention, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention 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, they should not be construed as limitations on the embodiments of the present invention.

[0090] Furthermore, technical terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0091] In the description of this embodiment of the invention, unless otherwise explicitly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0092] In the description of this embodiment of the invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An air pump type aroma diffuser, characterized in that, The air pump type aroma diffuser includes: A visible smoke chamber, wherein the smoke chamber is provided with an exhaust port that communicates with the outside; The atomizing component is equipped with an atomizing nozzle for generating smoke; The flow control structure has a first buffer chamber and a first mist outlet. The smoke chamber and the first buffer chamber are connected through the first mist outlet, and the atomizing nozzle is located in the first buffer chamber.

2. The air pump type aroma diffuser according to claim 1, characterized in that, The atomizing nozzle is equipped with a jet nozzle for gas ejection; The flow control structure is provided with a flow-blocking part that forms the top surface of the first buffer cavity. The airflow jet direction of the jet nozzle is toward the flow-blocking part, and the flow-blocking part gradually approaches the bottom surface of the first buffer cavity from the center to the edge.

3. The air pump type aroma diffuser according to claim 1, characterized in that, The flow control structure is provided with at least one first airflow channel, which connects the smoke chamber and the first buffer chamber. The first airflow channel is located inside the first buffer chamber. The first airflow channel has opposite inlets and outlets. The outlet is connected to the first mist outlet, and the inlet is spaced apart from the bottom surface of the first buffer chamber.

4. The air pump type aroma diffuser according to claim 3, characterized in that, The atomizing nozzle includes an air outlet facing the top of the first buffer chamber and positioned above the inlet in the vertical direction.

5. The air pump type aroma diffuser according to claim 2, characterized in that, It also includes a blocking component, and the air pump type aroma diffuser is further provided with a second buffer chamber. The blocking component forms part of the wall of the second buffer chamber. The wall corresponding to the second buffer chamber is provided with a second mist outlet, and the first mist outlet and the second mist outlet are offset.

6. The air pump type aroma diffuser according to claim 5, characterized in that, The blocking member is located above the bottom of the smoke chamber. The blocking member and the wall corresponding to the smoke chamber form the second buffer chamber. The periphery of the blocking member and the wall corresponding to the smoke chamber form the second mist outlet. The smoke chamber and the second buffer chamber are connected through the second mist outlet.

7. The air pump type aroma diffuser according to claim 6, characterized in that, The side of the blocking member facing the flow-blocking part is a flow-guiding surface, and the flow-guiding surface gradually moves away from the flow-blocking part in the direction from the periphery of the flow-guiding surface to the center of the flow-guiding surface.

8. The air pump type aroma diffuser according to any one of claims 1 to 4, characterized in that, The atomizing component includes a liquid chamber for storing aromatherapy liquid. The wall corresponding to the bottom of the first buffer chamber is provided with a reflux hole, and the first buffer chamber and the liquid chamber are connected through the reflux hole.

9. The air pump type aroma diffuser according to claim 8, characterized in that, The wall corresponding to the first buffer chamber is provided with a vent hole, and the first buffer chamber and the liquid chamber are connected through the vent hole; in the vertical direction, the vent hole is higher than the return hole.

10. The air pump type aroma diffuser according to claim 5, characterized in that, The air pump type aroma diffuser also includes a housing, a fan, and a second frame. The housing has a receiving cavity, and the second frame is disposed in the receiving cavity. The second frame divides the receiving cavity into a smoke chamber and a mounting cavity arranged vertically upwards and downwards. The atomizing component and the fan are disposed in the mounting cavity, and the second buffer cavity is located below the smoke chamber. The second frame is provided with multiple exhaust vents, which are connected to the air outlet of the fan and the smoke chamber. The multiple exhaust vents are arranged on the outer periphery of the second buffer chamber, and each exhaust vent is configured to tilt upwards along a uniform circumferential direction to discharge air.

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