Fragrance diffuser

Abstract

This utility model relates to the technical field of air purification equipment. It includes an inner shell and an outer shell. The inner shell has a receiving cavity and an assembly port at its top. The diffuser also includes an aromatherapy component, which includes a nozzle holder, a mist nozzle, an essential oil bottle, and an atomizing assembly. An assembly cavity is provided between the inner and outer shells. An air pump component and an air supply channel are located within the assembly cavity. The air supply channel communicates with both the air pump component and the receiving cavity. The nozzle holder has an air inlet channel. The inner shell has connection ports that communicate with both the air supply channel and the receiving cavity. When essential oil leaks from the bottle into the receiving cavity due to improper operation, the connection port, located in the upper middle part of the receiving cavity, prevents the leaked essential oil from flowing into the assembly cavity as long as the leaked amount does not exceed the height of the connection port. This avoids contact between the essential oil and the internal parts of the assembly cavity, allowing the diffuser to operate more stably and reliably.

Description

Technical Field

[0001] This utility model relates to the technical field of air purification equipment, specifically to a diffuser. Background Technology

[0002] As people's quality of life improves, aroma diffusers, as devices that can improve indoor odors and soothe the mind and body, are becoming increasingly popular among consumers. The working principle of some existing aroma diffusers is to use an air pump to generate high-pressure airflow, atomize essential oils, and disperse them into the air.

[0003] The existing aroma diffuser has certain defects. The connection port to the air supply channel is located too low in the housing cavity. In actual use, when users replace or operate aromatherapy components, due to careless operation (such as accidental collisions causing damage or cracks to the essential oil bottle; or an unstable connection between the essential oil bottle and the nozzle seat causing it to detach during assembly into the housing cavity, resulting in spillage of the essential oil), essential oil can easily leak into the housing cavity. The low position of the connection port makes it easy for essential oil in the housing cavity to flow into the assembly cavity through the connection port. Essential oil has a certain degree of corrosiveness, and the essential oil flowing into the assembly cavity will corrode the air pump components, air supply channel, and other parts inside the diffuser. Over time, the performance of these corroded parts will gradually decline or even be damaged, which not only affects the normal use of the aroma diffuser but also increases maintenance costs and user operating costs.

[0004] Therefore, it is urgent to improve the existing diffuser structure to solve the problem of essential oil flowing into the assembly cavity and causing corrosion and damage to parts.

[0005] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0006] Regarding the aforementioned existing diffusers, the connection port to the air supply channel is located low in the housing cavity, which can cause essential oil to leak into the housing cavity due to user carelessness, and then flow into the assembly cavity through the connection port, resulting in a technical problem that can be observed from above regarding the internal components.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A diffuser includes an inner housing and an outer housing fitted outside the inner housing. The inner housing has a receiving cavity, and the top of the inner housing has an assembly port communicating with the receiving cavity. The diffuser also includes an aromatherapy component, which includes a nozzle seat, a mist-emitting nozzle on the nozzle seat, an essential oil bottle connected to the bottom of the nozzle seat, and an atomizing component connected to the mist-emitting nozzle and located inside the essential oil bottle. The nozzle seat is sealed to the receiving cavity through the assembly port.

[0009] An assembly cavity is provided between the inner shell and the outer shell. An air pump component and an air supply channel are provided in the assembly cavity. The air supply channel is connected to the air pump component and the accommodating cavity respectively. The air pump component can deliver high-pressure airflow to the accommodating cavity through the air supply channel. The nozzle seat is provided with an air inlet channel. The air inlet channel can guide the high-pressure airflow flowing into the accommodating cavity to the essential oil bottle, so as to drive the gas atomized by the atomizing component to flow to the mist outlet nozzle.

[0010] The inner shell is provided with connection ports that are respectively connected to the air supply channel and the accommodating cavity, and the connection ports are located in the upper middle part of the accommodating cavity.

[0011] As described above, the depth of the accommodating cavity is L, and the distance from the central axis of the connection port to the bottom of the accommodating cavity is D, wherein D and L satisfy: 0.35L≤D≤L.

[0012] As described above, the diffuser's air supply channel includes an air supply pipe and a connecting nozzle. The two ends of the air supply pipe are connected to the connecting nozzle and the air pump component, respectively. The output end of the connecting nozzle is plugged into the connector.

[0013] As described above, the diffuser has a sealing assembly between the connection port and the connection nozzle. The sealing assembly includes a sealing groove on the outer wall of the inner housing, a sealing protrusion on the outer wall of the connection nozzle, and a first sealing ring located between the sealing groove and the sealing protrusion.

[0014] As described above, the aroma diffuser further includes a sealing protrusion on the outer wall of the inner housing, a sealing groove located inside the sealing protrusion, connecting protrusions on both sides of the sealing protrusion, and connecting portions on both sides of the sealing protrusion that connect with the connecting protrusions.

[0015] As described above, the diffuser has a second sealing ring between the receiving cavity and the nozzle seat.

[0016] As described above, the aroma diffuser includes an atomizing core, which comprises a first core and a second core connected by their outer walls. The first core has a first channel, with an air inlet and an air outlet at its two ends. The end of the first channel with the air inlet is connected to the output end of the air inlet channel. The second core has a second channel, with an oil inlet and an oil outlet at its two ends. The oil inlet is connected to an oil suction pipe. The central axis of the oil outlet intersects with the central axis of the air outlet.

[0017] In the aroma diffuser described above, the central axis of the oil outlet is perpendicular to the central axis of the air outlet.

[0018] As described above, in the aroma diffuser, the oil outlet and the air outlet are arranged adjacent to each other, and the outer wall of the second core with the oil outlet is provided with a guide slope, which gradually slopes upward along the direction from the air outlet to the oil outlet.

[0019] As described above, the diffuser has a reinforcing rib between the bottom of the first core and the outer wall of the second core.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model relates to the technical field of air purification equipment. It includes an inner shell and an outer shell. The inner shell has a receiving cavity and an assembly port at its top. The diffuser also includes an aromatherapy component, which includes a nozzle holder, a mist nozzle, an essential oil bottle, and an atomizing assembly. An assembly cavity is provided between the inner shell and the outer shell. An air pump component and an air supply channel are located within the assembly cavity. The air supply channel communicates with both the air pump component and the receiving cavity. The nozzle holder has an air inlet channel. The inner shell has connection ports that communicate with both the air supply channel and the receiving cavity. When essential oil leaks from the bottle into the receiving cavity due to improper operation, the connection port, located in the upper middle part of the receiving cavity, prevents the leaked essential oil from flowing into the assembly cavity as long as the leaked amount does not exceed the height of the connection port. This avoids contact between the essential oil and the internal parts of the assembly cavity, allowing the diffuser to operate more stably and reliably.

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the aroma diffuser of this utility model;

[0024] Figure 2 This is a top view schematic diagram of the aroma diffuser of this utility model;

[0025] Figure 3 for Figure 2 Cross-sectional view and enlarged view along line AA;

[0026] Figure 4 for Figure 2 Cross-sectional view and enlarged view along line BB;

[0027] Figure 5 This is one of the exploded view diagrams of the aroma diffuser of this utility model;

[0028] Figure 6 This is a second exploded view and a partially enlarged view of the aroma diffuser of this utility model;

[0029] Figure 7This is an exploded view of the inner shell and aromatherapy component of this utility model;

[0030] Figure 8 This is a schematic diagram of the atomizing core of this utility model;

[0031] Figure 9 This is a side view of the atomizing core of this utility model;

[0032] Figure 10 This is an exploded view of the atomizing core of this utility model. Detailed Implementation

[0033] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] like Figures 1 to 10 As shown, the aroma diffuser of this embodiment includes an inner shell 1 and an outer shell 2 sleeved on the outside of the inner shell 1. The inner shell 1 is provided with a receiving cavity 11. The top of the inner shell 1 is provided with an assembly port 12 communicating with the receiving cavity 11. The aroma diffuser also includes an aromatherapy component, which includes a nozzle seat 3, a mist-emitting nozzle 31 provided on the nozzle seat 3, an essential oil bottle 32 connected to the bottom of the nozzle seat 3, and an atomizing component 4 connected to the mist-emitting nozzle 31 and located in the essential oil bottle 32. The nozzle seat 3 is sealed to the receiving cavity 11 through the assembly port 12.

[0035] An assembly cavity 13 is provided between the inner shell 1 and the outer shell 2. An air pump component 14 and an air supply channel 15 are provided in the assembly cavity 13. The air supply channel 15 is connected to the air pump component 14 and the accommodating cavity 11 respectively. The air pump component 14 can deliver high-pressure airflow to the accommodating cavity 11 through the air supply channel 15. The nozzle seat 3 is provided with an air inlet channel 33. The air inlet channel 33 can guide the high-pressure airflow flowing into the accommodating cavity 11 to the essential oil bottle 32, so as to drive the gas atomized by the atomizing component 4 to flow to the mist outlet nozzle 31.

[0036] The inner shell 1 is provided with a connection port 16 that communicates with the air supply channel 15 and the accommodating cavity 11 respectively. The connection port 16 is located in the upper middle part of the accommodating cavity 11.

[0037] Specifically, when the diffuser is working normally, the air pump component 14 starts and generates a high-pressure airflow. The high-pressure airflow flows along the air supply channel 15 and enters the accommodating cavity 11 through the connection port 16 on the inner shell 1. The high-pressure airflow entering the accommodating cavity 11 is guided to the essential oil bottle 32 through the air inlet channel 33 on the nozzle seat 3. In the essential oil bottle 32, the atomizing component 4 atomizes the essential oil. The high-pressure airflow can drive the atomized gas to be dispersed into the surrounding environment along the mist outlet nozzle 31 to achieve the aromatherapy function.

[0038] When essential oil leaks from bottle 32 into cavity 11 due to improper operation (such as accidental collision causing the essential oil bottle to break or crack; or the essential oil bottle and nozzle seat being unstable and detaching during assembly into the receiving cavity, causing the essential oil to spill), since the connection port 16 is located in the upper middle part of cavity 11, the essential oil will accumulate at the bottom of cavity 11 under the action of gravity. As long as the amount of leaked essential oil does not exceed the height of the connection port 16, the essential oil cannot flow into assembly cavity 13 through the connection port 16. This avoids the essential oil from contacting internal parts such as air pump component 14 and air supply channel 15 in assembly cavity 13, and avoids corrosion of internal parts in assembly cavity 13 by essential oil. This effectively reduces diffuser malfunctions caused by corrosion damage to parts, reduces equipment maintenance frequency and maintenance costs, extends the service life of diffuser, and enables diffuser to operate more stably and reliably.

[0039] Essential oil flowing into the assembly cavity may affect the normal operation of components such as the air pump, and may even cause electrical malfunctions and other safety issues. Setting the connection port at a higher position to prevent essential oil from flowing in helps to reduce these potential safety hazards and ensure user safety.

[0040] like Figures 1 to 10 As shown, the depth dimension of the accommodating cavity 11 in this embodiment is L, and the distance dimension from the central axis of the connecting port 16 to the bottom of the accommodating cavity 11 is D, wherein D and L satisfy: 0.35L≤D≤L.

[0041] Specifically, when the air pump component 14 is working, the generated high-pressure airflow reaches the connection port 16 through the air supply channel 15, and then enters the accommodating cavity 11. Since the connection port 16 is located in the accommodating cavity 11 within the height range of 0.35L to L, the high-pressure airflow can enter the accommodating cavity 11 at a suitable position and angle. The high-pressure airflow entering the accommodating cavity 11 will enter the essential oil bottle 32 through the air inlet channel 33 on the nozzle seat 3, driving the gas atomized by the atomizing component 4 to flow towards the mist outlet nozzle 31.

[0042] When essential oil leaks into the receiving cavity 11, as long as the liquid level of the leaked essential oil does not exceed the height D of the central axis of the connection port 16, the essential oil will not flow into the assembly cavity 13 through the connection port 16, thereby avoiding corrosion of the parts in the assembly cavity 13.

[0043] Preferably, the connection port 16 is set within the range of 0.35L≤D≤L, which allows the high-pressure airflow to enter from the upper middle part of the accommodating cavity 11. This allows the airflow to have a larger diffusion space within the accommodating cavity, preventing the airflow from directly impacting the bottom or local areas of the accommodating cavity. This results in a more uniform distribution of the airflow within the accommodating cavity. The uniform airflow helps to deliver the atomized essential oil gas more stably and evenly to the mist nozzle 31, thereby allowing the aroma emitted by the diffuser to diffuse more evenly into the surrounding environment and enhancing the aromatherapy effect.

[0044] The connection port 16, when positioned appropriately, allows the high-pressure airflow to act on the air intake channel 33 with better pressure and flow rate, enabling the airflow entering the essential oil bottle 32 to more effectively drive the gas atomized by the atomizing component 4, thereby improving atomization efficiency and atomization quality, and allowing the diffuser to produce a more delicate and rich aroma mist.

[0045] Preferably, when D≥0.35L, the connection port 16 is located at a relatively high position in the accommodating cavity 11, providing a certain space for essential oil that may accidentally leak into the accommodating cavity 11. During normal use, even if a small amount of essential oil accidentally leaks into the accommodating cavity, as long as the leakage amount is not particularly large, the level of essential oil will not exceed the height of the connection port 16, thereby preventing essential oil from flowing into the assembly cavity 13 and protecting the air pump components, air supply channels and other parts in the assembly cavity from corrosion by essential oil.

[0046] Preferably, setting the upper limit of D to L means that the connection port 16 can be set at the extreme position at the top of the accommodating cavity 11. This design has the greatest fault tolerance, can adapt to various possible misoperation situations, and maximizes the safety of the parts in the assembly cavity 13.

[0047] Setting the connection port 16 within this size range is beneficial to the overall structural layout of the diffuser. It allows for a better arrangement of the connection between the air supply channel 15 and the accommodating cavity 11, making the internal structure of the diffuser more compact and reasonable. It also facilitates the installation and disassembly of various components, reducing the difficulty of manufacturing and maintenance.

[0048] The range of sizes allows for a degree of versatility in the design of the diffuser, making it suitable for various sizes and specifications of the cavity. As long as the relationship 0.35L≤D≤L is met, the structure of the diffuser can be flexibly adjusted and optimized while ensuring the aromatherapy effect and preventing essential oils from flowing into the assembly cavity.

[0049] Preferably, in this embodiment, D=0.5L. When the air pump component 14 operates and generates high-pressure airflow, it enters the accommodating cavity 11 through the air supply channel 15 from the connection port 16. Since the distance D between the central axis of the connection port 16 and the bottom of the accommodating cavity 11 is equal to 0.5L, that is, it is located at the middle position of the accommodating cavity height, the high-pressure airflow will diffuse in both upward and downward directions starting from the middle height of the accommodating cavity.

[0050] The upward-diffusing airflow can drive the airflow in the upper part of the container cavity, while the downward-diffusing airflow can fully mix with the air near the bottom of the container cavity. Then, the airflow will enter the essential oil bottle 32 through the air inlet channel 33 on the nozzle seat 3 relatively evenly, driving the gas atomized by the atomizing component 4 to flow to the mist outlet nozzle 31.

[0051] The connection port 16, located in the middle of the accommodating cavity, allows the high-pressure airflow to diffuse evenly up and down within the accommodating cavity. Compared to cases where the connection port is too high or too low, it can prevent the airflow from concentrating only in the upper part of the accommodating cavity, thus avoiding poor airflow in the lower part, and also prevent the airflow from mainly impacting the bottom, thus causing insufficient air disturbance in the upper part.

[0052] The airflow diffuses upwards and downwards from the center, creating good air circulation within the cavity. The upward airflow causes convection between the air in the upper part of the cavity and the downward airflow, enhancing the overall airflow within the cavity.

[0053] The connection port is positioned at the middle height of the accommodating cavity, providing ample space for essential oils that may accidentally leak into the accommodating cavity. During normal use, as long as the amount of leaked essential oil does not exceed half the volume of the accommodating cavity, the level of the essential oil will not exceed the height of the connection port 16, thereby effectively preventing essential oils from flowing into the assembly cavity 13 and protecting the air pump components, air supply channels, and other parts in the assembly cavity from corrosion by essential oils.

[0054] Preferably, D=0.5L ensures sufficient space to handle accidental pouring of essential oils without wasting space in the receiving cavity due to an excessively high connection point. This achieves a more efficient use of the receiving cavity space while maintaining safety.

[0055] Preferably, from a structural mechanics perspective, having the connection port located in the middle of the accommodating cavity allows for a more uniform stress distribution when the cavity is subjected to airflow pressure. Compared to a connection port located at the top or bottom, a connection port in the middle position can prevent excessive local stress in the accommodating cavity caused by airflow impact, thereby reducing the risk of deformation or damage to the accommodating cavity and improving the overall structural stability and service life of the diffuser.

[0056] like Figures 1 to 10 As shown, the air supply channel 15 in this embodiment includes an air supply pipe 151 and a connecting plug 152. The two ends of the air supply pipe 151 are respectively connected to the connecting plug 152 and the air pump component 14. The output end of the connecting plug 152 is plugged into the connecting port 16.

[0057] When the air pump component 14 is started, the air pump generates a high-pressure airflow. This high-pressure airflow first enters the air supply pipe 151 connected to the air pump component 14. The air supply pipe 151 serves to transmit the high-pressure airflow, guiding the high-pressure airflow generated by the air pump from the air pump component to the connecting plug 152.

[0058] The connecting plug 152 serves as a transitional connector between the air supply pipe 151 and the connecting port 16. It receives the high-pressure airflow from the air supply pipe 151 and accurately delivers the high-pressure airflow into the accommodating cavity 11 through the plug-in cooperation between its output end and the connecting port 16. Then, the high-pressure airflow entering the accommodating cavity 11 drives the essential oil atomizing gas to flow to the mist outlet nozzle 31 in the manner described above.

[0059] Preferably, the air supply pipe 151 has a certain degree of flexibility and bendability, which makes it highly flexible in the spatial layout inside the diffuser. The air supply pipe 151 can be bent and arranged according to the actual space conditions, so as to conveniently transmit the airflow generated by the air pump to the receiving cavity without being too restricted by the internal spatial structure of the diffuser.

[0060] Furthermore, if the air pump component 14 or the accommodating cavity 11 needs maintenance, repair or replacement, the air supply pipe 151 can be disassembled and reinstalled relatively easily. This detachable connection method makes it more convenient to maintain and repair the diffuser, reducing maintenance costs and difficulty.

[0061] Preferably, the output end of the connector 152 and the connector 16 are connected by a plug-in method. This connection method can provide a tighter fit, which can effectively prevent air leakage during the transmission of high-pressure airflow and ensure that the high-pressure airflow generated by the air pump can enter the accommodating cavity 11 in a complete and efficient manner. The tight connection can also reduce the noise and vibration generated by the airflow at the connection point, and improve the stability and quietness of the diffuser.

[0062] Preferably, the connecting spout 152 can be designed with certain structural features, such as a sealing ring or snap-fit ​​structure at its output end, to further enhance the connection stability with the connecting port 16. In this way, even if the diffuser is subjected to certain vibrations or external forces during normal use, the connection between the connecting spout 152 and the connecting port 16 will not easily loosen, ensuring the continuity and reliability of airflow transmission.

[0063] Preferably, the air supply channel 15 is designed as a combination of an air supply pipe 151 and a connecting nozzle 152, which realizes the modularization of the air supply channel. During the production process of the diffuser, the air supply pipe 151, the connecting nozzle 152, the air pump component 14, etc. can be produced and quality tested independently before being assembled. This modular production method improves production efficiency and facilitates large-scale production and quality control.

[0064] Furthermore, if the air supply system of the diffuser needs to be expanded or upgraded in the future, such as replacing the air pump components to increase the airflow pressure, or improving the inner diameter and material of the air supply channel, the modular design of the air supply channel makes it easy to replace or improve the air supply pipe 151 or the connecting spout 152 without having to make large-scale changes to the structure of the entire diffuser.

[0065] like Figures 1 to 10 As shown, a sealing assembly is provided between the connection port 16 and the connection plug 152 in this embodiment. The sealing assembly includes a sealing groove 153 on the outer wall of the inner housing 1, a sealing protrusion 154 on the outer wall of the connection plug 152, and a first sealing ring 155 located between the sealing groove 153 and the sealing protrusion 154. This assembly can ensure the sealing performance between the connection port 16 and the connection plug 152, and ensure the sealing of the interior of the receiving cavity 11 after the aromatherapy component is assembled into the receiving cavity 11.

[0066] Preferably, when the connector 152 is inserted into the connector 16, the sealing protrusion 154 on the outer wall of the connector 152 will align with the sealing groove 153 on the outer wall of the inner housing 1. During the insertion process, the sealing protrusion 154 gradually enters the sealing groove 153 and simultaneously compresses the first sealing ring 155 located between the two.

[0067] The first sealing ring 155 is typically made of an elastic material (such as rubber) that undergoes elastic deformation when compressed. This elastic deformation causes the first sealing ring 155 to fit tightly against the surfaces of the sealing groove 153 and the sealing protrusion 154, filling the gap between them.

[0068] In this way, gas is effectively prevented from leaking out from the connection between the connector 16 and the connector 152, thereby ensuring the airtightness of the cavity 11 and ensuring that the high-pressure airflow generated by the air pump can enter the cavity 11 completely to achieve subsequent functions such as essential oil atomization.

[0069] When the diffuser is working, the high-pressure airflow generated by the air pump needs to enter the receiving cavity 11 through the air supply channel. If the connection port 16 and the connection plug 152 are not sealed tightly, it will cause airflow leakage, reduce the air pressure in the receiving cavity 11, and affect the atomization effect of the essential oil. The design of the sealing component, through the synergistic action of the sealing protrusion 154, the sealing groove 153 and the first sealing ring 155, forms multiple sealing defenses, which greatly improves the sealing performance of the connection part and ensures that the airflow can enter the receiving cavity 11 efficiently.

[0070] Preferably, the cooperation between the sealing protrusion 154 and the sealing groove 153 plays a certain role in physical positioning, so that the connecting plug 152 can be accurately inserted into the connecting port 16, ensuring the accuracy and consistency of the connection; at the same time, under the elastic force generated by the compression of the first sealing ring 155, a certain frictional force will be generated between the sealing protrusion 154 and the sealing groove 153, which further enhances the connection stability between the connecting plug 152 and the connecting port 16 and reduces the problem of connection loosening caused by vibration or external force.

[0071] like Figures 1 to 10 As shown, the sealing assembly of this embodiment also includes a sealing protrusion 156 disposed on the outer wall of the inner housing 1. The sealing groove 153 is located inside the sealing protrusion 156. Connecting protrusions 157 are provided on both sides of the sealing protrusion 156. Connecting portions 158 connected to the connecting protrusions 157 are provided on both sides of the sealing protrusion 154, further improving the sealing performance between the connecting port 16 and the connecting plug 152.

[0072] When the connector 152 is inserted into the connector 16, the entire sealing assembly begins to function. First, the sealing protrusion 154 aligns with and inserts into the sealing groove 153, compressing the first sealing ring 155 to achieve an initial seal. At the same time, the sealing protrusion 156 provides further blocking and protection, surrounding the sealing groove 153 to prevent gas leakage paths that could bypass the sealing protrusion-sealing groove-first sealing ring assembly.

[0073] The connecting protrusion 157 and the connecting portion 158 are interconnected. When the connecting plug 152 is inserted into place, the connecting portion 158 and the connecting protrusion 157 fit together tightly. This fit, on the one hand, further fixes the relative position of the connecting plug 152 and the connecting port 16 through physical connection, reducing the possible relative displacement between the two. On the other hand, the tight fit between the connecting protrusion 157 and the connecting portion 158 forms an additional sealing barrier, preventing gas from leaking out from the sides of the sealing protrusion and the sealing groove, thereby further improving the overall sealing performance.

[0074] Furthermore, the design of the sealing protrusion 156 and the connecting protrusion 157-connecting part 158 ​​forms a multi-layer sealing structure. During the operation of the diffuser, the high-pressure airflow generated by the air pump needs to break through multiple layers of defense before it can leak out. First, the first sealing ring 155 seals between the sealing protrusion 154 and the sealing groove 153. Then, the sealing protrusion 156 blocks the airflow. Finally, the connecting protrusion 157 and the connecting part 158 ​​provide a side seal. This multi-layer sealing design greatly improves the sealing reliability between the connecting port 16 and the connecting plug 152, ensuring stable air pressure in the accommodating cavity 11, which is conducive to the efficient atomization of essential oils.

[0075] Preferably, relying solely on the sealing protrusion 154, the sealing groove 153, and the first sealing ring 155 may pose a risk of gas leakage from the side gaps. The cooperation between the connecting protrusion 157 and the connecting part 158 ​​precisely compensates for this defect. They form a sealing barrier on both sides of the sealing protrusion and the sealing groove, effectively preventing gas leakage from the side and making the seal more comprehensive.

[0076] Furthermore, the connection between the connecting protrusion 157 and the connecting part 158 ​​provides additional physical fixation for the connecting spout 152 and the connecting port 16. During the use of the diffuser, it may be affected by various external forces, such as vibration and collision. This connection structure can resist these external forces, reduce the loosening and displacement of the connection parts, ensure the stability of the connection, and enable the diffuser to work continuously and stably.

[0077] Furthermore, a stable connection reduces the relative movement between the connector 152 and the connector 16, thereby reducing wear between them. Reduced wear not only extends the service life of the sealing assembly but also maintains long-term stability of the sealing performance, reducing seal failure caused by wear.

[0078] Preferably, the connecting protrusion 157 includes a connecting post with a connecting hole, and the connecting portion 158 includes a connecting bump with a connecting hole. The connecting hole of the connecting bump is aligned with the connecting hole of the connecting post, and then the connection is achieved by a connector (such as a bolt, screw, etc.).

[0079] Next, a connector is passed through the aligned connecting hole. The connector typically has an external thread, while the connecting hole has a matching internal thread for fastening. As the connector is screwed in or installed, it generates tension between the connecting post and the connecting protrusion, pulling the two parts tightly together, thereby achieving a secure connection between the connecting protrusion 157 and the connecting part 158.

[0080] By using connectors that pass through connecting holes, a stable mechanical connection can be formed between two components. This connection method can withstand certain tensile, compressive, and shear forces, ensuring that the connection will not easily loosen or separate during normal use of the product.

[0081] Furthermore, the design of the connecting holes ensures high precision in the connection process. Aligning the connecting holes allows for accurate determination of the relative positions of the two components, thus guaranteeing a precise connection.

[0082] Preferably, in other embodiments, a connector may be provided on the side of the connecting protrusion facing the connecting post, and the connector may be connected to the connecting hole on the connecting post (such as by interference fit or snap-fit). Users can choose a suitable design according to their actual needs.

[0083] Furthermore, the sealed connection between the connector 16 and the connector 152 ensures that the assembly cavity 13 and the accommodating cavity 11 are two independent and non-communicating cavities, preventing essential oil from flowing into the assembly cavity 13 and corroding the internal parts, thus avoiding damage.

[0084] In products like aroma diffusers, the accommodating cavity 11 is used to assemble aromatherapy components and provide space for gas flow, while the assembly cavity 13 is the area for installing various electronic components, circuits, and other internal parts. The connection port 16 and the connection plug 152 are located at positions where the accommodating cavity 11 and the assembly cavity 13 communicate with each other, respectively.

[0085] When the connector 152 is inserted into the connector 16, a tight seal is achieved through the sealing components (such as the previously mentioned sealing protrusion, sealing groove, first sealing ring, sealing protrusion, connecting protrusion, and connecting part). This seal forms a reliable barrier, which, together with the height design of the connector, prevents the essential oil in the accommodating cavity 11 from seeping into the assembly cavity 13 through the connecting part. Even if the essential oil in the accommodating cavity 11 is affected by factors such as air pressure changes or vibration, the essential oil cannot cross the sealing area between the connector 16 and the connector 152 to enter the assembly cavity 13 due to the sealing effect. Alternatively, if the amount of leaked essential oil does not exceed the height of the connector 16, the essential oil cannot flow into the assembly cavity 13 or the air pump component through the connector 16, effectively protecting the parts in the assembly cavity 13 and extending the overall service life of the product.

[0086] like Figures 1 to 10 As shown, the atomizing component 4 in this embodiment includes an atomizing core, which includes a first core body 41 and a second core body 42 connected to each other on their outer walls. The first core body 41 has a first channel 411 inside, and the two ends of the first channel 411 are respectively provided with an air inlet 412 and an air outlet 413. The end of the first channel 411 with the air inlet 412 is connected to the output end of the air inlet channel 33. The second core body 42 has a second channel 421 inside, and the two ends of the second channel 421 are respectively provided with an oil inlet 422 and an oil outlet 423. The oil inlet 422 is connected to an oil suction pipe 424. The central axis of the oil outlet 423 intersects with the central axis of the air outlet 413. The core working principle of the diffuser in this embodiment is to use two-fluid atomization technology, which decomposes the aromatherapy oil into nano-sized particles by compressed air and diffuses them into the air. The air pump component 14 generates high-pressure air to form a high-speed airflow as a power source.

[0087] Specifically, after the device is started, the air pump component 14 begins to work, generating high-pressure air and forming a high-speed airflow. This high-speed airflow serves as the power source for the entire atomization process and is delivered to the first channel 411 of the atomization component 4 through the air intake channel 33. Compressed air enters the first channel 411 from the air intake port 412 and is ejected from the air outlet port 413. When the compressed air flows through the oil outlet port 423, according to the principles of fluid dynamics, the increased fluid velocity leads to a decrease in pressure, thereby generating a negative pressure at the oil outlet port 423. Since the oil inlet port 422 is connected to the aromatherapy oil in the essential oil bottle 32 through the oil suction pipe 424, under the action of negative pressure, the aromatherapy oil is siphoned up, enters the second channel 421 from the oil inlet port 422, and flows to the oil outlet port 423.

[0088] Specifically, compressed air is continuously ejected from the air outlet 413. When the aromatherapy oil siphoned up reaches the oil outlet 423, the high-speed compressed air collides with the aromatherapy oil. Based on the principle that the collision between air and liquid breaks the liquid, the aromatherapy oil is broken into tiny mist particles, thus achieving liquid atomization.

[0089] Preferably, the atomized aromatherapy oil particles are of different sizes. The larger particles of atomized liquid naturally settle under the influence of gravity and return to the essential oil bottle 32 to mix with the liquid; while the smaller particles of atomized liquid move upward and are sprayed out through the mist nozzle 31 to mix with the air, thereby achieving the purpose of purifying and refreshing the air.

[0090] Specifically, this atomization method is based on the decomposable characteristics of vector force, the principle of negative pressure formation, and the principle of air colliding with liquid to break the liquid. These are all classic physical principles that have been verified by a large number of practical applications. The atomizer core structure designed based on these principles is relatively simple and does not require complex mechanical structures or electronic components, thus reducing design and manufacturing costs.

[0091] A simple design also means fewer points of failure, improving the reliability and stability of the product. During long-term use, it is less likely to fail due to structural complexity, reducing the frequency of maintenance and replacement.

[0092] The entire atomization process is a continuous and stable physical process. As long as the air pump component 14 can continuously provide a stable supply of compressed air, the atomization process can be guaranteed to continue. Moreover, the larger atomized liquid particles naturally settle and remix with the liquid in the essential oil bottle, which keeps the liquid supply relatively stable and further improves the stability of the atomization effect.

[0093] Since no complex control system is needed to regulate the atomization process, the possibility of atomization instability due to control system failure is reduced.

[0094] This atomization method has low requirements for usage conditions, requiring no special environmental conditions or high-precision operation. It can operate normally at room temperature and pressure, and it also has a certain adaptability to the properties of liquids (such as viscosity and density), which makes the product more widely applicable and easier for users to use, lowering the barrier to entry.

[0095] The atomizing core is made based on the decomposable characteristics of vector force, the principle of negative pressure formation, and the principle of breaking up liquid by air-liquid collision. It has the advantages of simple atomization method, low noise, small error, good stability, and low usage conditions.

[0096] like Figures 1 to 10 As shown, in this embodiment, the central axis of the oil outlet 423 is perpendicular to the central axis of the air outlet 413.

[0097] When the central axis of the oil outlet 423 is perpendicular to the central axis of the air outlet 413, the high-speed compressed air exits from the air outlet 413, and its airflow direction is perpendicular to the flow direction of the aromatherapy oil flowing out from the oil outlet 423.

[0098] In this scenario, the high-speed airflow impacts the essential oil at a vertical angle. According to fluid mechanics and collision principles, this vertical impact ensures full contact between the airflow and the essential oil. The kinetic energy of the high-speed airflow is rapidly transferred to the essential oil, subjecting it to a significant impact force in a short period. This effectively breaks the essential oil into tiny mist particles, achieving liquid atomization.

[0099] The vertical design allows for a more intense and thorough collision between compressed air and essential oils. Compared to designs with other angles, vertical impact produces more micro-droplets at the same airflow speed and liquid flow rate. This is because the impact force in the vertical direction disperses and breaks up the essential oils in all directions, thereby improving atomization efficiency and allowing more essential oils to be atomized into sprayable micro-particles.

[0100] Vertical collision allows the aromatherapy oil to be evenly affected by the airflow in all directions, resulting in more uniform droplet size after atomization. Uniform droplet size helps improve the diffusion effect of the aromatherapy oil in the air, allowing the aroma to be more evenly distributed in the surrounding environment and enhancing the user experience.

[0101] The vertical design makes the airflow impact on the aromatherapy oil more concentrated and direct, which can more effectively carry the aromatherapy oil out of the oil outlet 423 and atomize it. This reduces the possibility of aromatherapy oil accumulating near the oil outlet 423, reduces the risk of oil outlet blockage, and ensures the continuous and stable atomization process.

[0102] The vertical layout makes more efficient use of space, resulting in a more compact structure for the atomizing components. This design enables efficient atomization within a limited space, which is beneficial for miniaturization, reducing the overall size and weight of the product, and improving its portability and applicability.

[0103] like Figures 1 to 10 As shown, in this embodiment, the oil outlet 423 and the air outlet 413 are arranged adjacent to each other. The second core 42 has a guide slope 425 on the outer wall of the oil outlet 423. The guide slope 425 gradually slopes upward along the direction from the air outlet 413 to the oil outlet 423.

[0104] When compressed air is ejected at high speed from the air outlet 413, since the oil outlet 423 is adjacent to the air outlet 413, and the second core 42 has a guide slope 425 on the outer wall of the oil outlet 423, the guide slope 425 gradually slopes upward along the direction from the air outlet 413 to the oil outlet 423. After the high-speed airflow encounters the guide slope 425, it will flow along the direction of the slope, thereby guiding the airflow to the vicinity of the oil outlet 423.

[0105] According to Bernoulli's principle, high-speed airflow will reduce the surrounding air pressure. When the airflow is guided by the inclined plane 425 to the vicinity of the oil outlet 423, a relatively low-pressure area is formed around the oil outlet 423, while the air pressure in the area where the aromatherapy oil is located is relatively high. Under the action of this pressure difference, the aromatherapy oil will be drawn out from the oil outlet 423 and enter the airflow, where it will be broken into tiny droplets and atomized by the airflow.

[0106] The guide slope 425 can accurately guide the airflow ejected from the air outlet 413 to the oil outlet 423, so that the airflow can come into fuller contact with the aromatherapy oil. This allows more aromatherapy oil to be carried and atomized by the airflow under the same airflow and liquid supply conditions, thereby improving the overall atomization efficiency and enabling more aromatherapy mist to be produced per unit time.

[0107] Furthermore, the guiding effect of the guide slope 425 on the airflow makes the airflow more stable and uniform on the aromatherapy oil at the oil outlet 423, avoiding the situation where the amount of aromatherapy oil flowing out varies due to the dispersion or instability of the airflow, ensuring that the aromatherapy oil can be continuously and stably atomized, so that the diffuser can continuously and stably release the fragrance.

[0108] Preferably, the guide slope 425 is designed to gradually slope upwards along the direction from the air outlet 413 to the oil outlet 423. This design can, to a certain extent, prevent the aromatherapy oil from flowing back into the air outlet 413 without being atomized. Without such a slope, the aromatherapy oil may flow into the air outlet due to various reasons (such as vibration, air pressure fluctuations, etc.), causing blockage of the air outlet and affecting the normal operation of the diffuser. The presence of the guide slope can utilize gravity and airflow to keep the aromatherapy oil near the oil outlet, facilitating atomization.

[0109] like Figures 1 to 10 As shown, a second sealing ring 34 is provided between the accommodating cavity 11 and the nozzle seat 3 in this embodiment, which further improves the sealing performance of the accommodating cavity 11 after the aromatherapy component is assembled into the accommodating cavity 11.

[0110] Specifically, in aroma diffusers employing two-fluid atomization technology, compressed air is delivered to the atomizing core through a specific channel, where it interacts with the essential oils to achieve atomization. When the aroma diffuser component is assembled into the receiving cavity 11, the outer wall of the aroma diffuser component and the inner wall of the receiving cavity 11 form a relatively closed area. The second sealing ring 34 can fill the gap between the aroma diffuser component and the receiving cavity 11, preventing compressed air from leaking out of this gap. Without a good seal, some compressed air will escape from the gap, resulting in insufficient airflow pressure and flow rate reaching the atomizing core.

[0111] Stable air pressure is key to achieving good atomization. A well-sealed cavity 11 ensures that the compressed air has sufficient and stable pressure when it reaches the atomizing core. Only when the compressed air impacts the essential oil with stable pressure can the essential oil be effectively broken into tiny droplets. If the seal is not good and the air pressure is unstable, the impact force of the airflow on the essential oil will be uneven, and the essential oil cannot be fully atomized into a visible mist.

[0112] Specifically, two-fluid atomization requires a suitable gas-liquid ratio to achieve the ideal atomization effect. The sealed accommodating cavity 11 can ensure that the ratio of compressed air and essential oil entering the atomization area is relatively stable. If there is airflow leakage, it will change the gas-liquid ratio, making it impossible for the essential oil to be carried and atomized by the proper airflow, thereby affecting the quality and visibility of atomization.

[0113] By using the second sealing ring 34 to improve the sealing of the accommodating cavity 11, it is possible to ensure that there is enough compressed air at a stable pressure and appropriate flow rate to reach the atomizing core, which can fully mix and act with the essential oil, effectively atomizing the essential oil into tiny droplets. This makes the air coming out of the mist nozzle 31 not only carry the fragrance of the essential oil, but also show a clear mist of essential oil spraying out, greatly improving the atomization effect of the diffuser.

[0114] The visible mist of essential oil not only allows users to more intuitively experience the working effect of the diffuser, but also creates a better aromatherapy atmosphere. Compared to simply smelling the fragrance but not seeing the mist, the mist of essential oil enhances the visual effect of aromatherapy, providing users with a richer and higher-quality user experience and increasing user satisfaction with the product.

[0115] like Figures 1 to 10 As shown, a reinforcing rib member 43 is provided between the bottom of the first core 41 and the outer wall of the second core 42 in this embodiment.

[0116] During the operation of the diffuser, the first core 41 and the second core 42 may be subjected to various forces, such as airflow impact and vibration, which may change the relative position between the two cores. The reinforcing rib 43 connects the bottom of the first core 41 to the outer wall of the second core 42, which is equivalent to establishing a stable mechanical connection structure between the two. It can disperse and transmit the force acting on the core, so that the force is evenly distributed on the overall structure composed of the two cores and the reinforcing rib, avoiding excessive local stress that could cause damage or displacement of the core.

[0117] During the operation of the diffuser, the first core 41 and the second core 42 may deform to a certain extent due to factors such as temperature and pressure changes. The reinforcing rib 43 has a certain rigidity and strength, which can constrain the core and limit the deformation range of the core. When the core tends to deform, the reinforcing rib will generate a reaction force to resist this deformation, maintain the shape and dimensional stability of the core, and ensure that the core can perform its function normally.

[0118] During the operation of the diffuser, stress is generated inside the first core 41 and the second core 42. An unreasonable stress distribution may lead to problems such as cracks and damage to the core. The presence of the reinforcing rib 43 can change the stress distribution of the core, making the stress more evenly distributed throughout the structure. By optimizing the stress distribution, the risk of local stress concentration in the core is reduced, and the reliability and service life of the core are improved.

[0119] like Figures 1 to 10 As shown, the first core 41 of this embodiment has a cleaning hole 414 on one side opposite to the air outlet 413. The cleaning hole 414 is detachably connected to a sealing cover 415. When it is necessary to clean the air outlet 413 and / or the first channel 411, the sealing cover 415 can be removed from the cleaning hole 414 and then the cleaning work can be carried out.

[0120] When the diffuser and other equipment are running normally, the sealing cover 415 is tightly connected to the cleaning hole 414 to form a sealing structure, preventing external dust, impurities and other contaminants from entering the interior of the first core 41. At the same time, it ensures that the airflow and liquid inside the equipment flow in accordance with the predetermined channels, such as allowing the airflow to pass normally through the first channel 411 and be discharged from the air outlet 413, so as to achieve normal atomization, fragrance output and other functions.

[0121] After a period of use, if the vent 413 or the first channel 411 becomes clogged or dirty due to essential oil residue, dust accumulation, or other reasons, affecting the performance of the equipment, the user can manually remove the sealing cover 415 from the cleaning hole 414. At this time, the cleaning hole 414 becomes an open channel, and the user can clean the vent 413 and the first channel 411 through the cleaning hole 414. For example, the user can use cleaning tools (such as a fine brush, cotton swabs, etc.) to remove dirt from the inside, or inject cleaning fluid through the cleaning hole 414 to rinse the inside.

[0122] This design greatly improves the ease of equipment maintenance. With the cleaning port 414 and the removable sealing cover 415, users can directly clean key parts without complicated tools or professional skills by simply removing the sealing cover, saving time and effort.

[0123] Regular cleaning of the air outlet 413 and the first channel 411 can effectively prevent problems such as blockage and corrosion caused by the accumulation of dirt. Blockage of the air outlet will affect airflow and atomization effect, reducing the performance of the diffuser; long-term accumulation of dirt may also cause corrosion to the inner wall of the first channel 411, shortening the service life of the equipment. Through convenient cleaning operations, the internal cleanliness and unobstructed flow of the equipment can be maintained, ensuring that the equipment is always in good working condition, thereby extending the overall service life of the equipment.

[0124] like Figures 1 to 10 As shown, the air pump component 14 in this embodiment includes a receiving housing 141 located at the bottom of the inner housing 1 and an air pump body 142 disposed within the receiving housing 141.

[0125] The air pump component 14 mainly provides airflow power for the entire device. The air pump body 142 is installed inside the housing 141. When the device is started, the air pump body 142 starts to work. The air pump body 142 usually drives the internal piston, impeller and other components to move through the motor, changing the air pressure inside the air pump. Specifically, the air pump body 142 will draw in external air and then discharge the air at a certain pressure and flow rate through compression and other means. The discharged air will be transported to other parts of the device through the corresponding channels, such as the first channel 411 of the first core 41, to drive the flow of liquids such as essential oils inside or to achieve atomization and other functions.

[0126] The housing 141 is located at the bottom of the inner housing 1 and serves to protect the air pump body 142. It can provide a relatively stable and enclosed working environment for the air pump body 142, reducing the interference of external factors on the operation of the air pump body 142. At the same time, the housing 141 also helps to isolate and buffer the vibration and noise generated when the air pump body 142 is working.

[0127] Preferably, the housing 141 provides physical protection for the air pump body 142, preventing it from being damaged by external impacts, dust, liquids, etc. During use, the equipment may be subject to various accidental impacts or come into contact with dust, liquids, etc. If the air pump body 142 is directly exposed, it is easily damaged. The housing 141 encloses the air pump body 142, reducing these risks and extending its service life.

[0128] Preferably, the air pump body 142 will generate a certain amount of noise and vibration when it is working. The air pump body 142 is installed in the housing 141. The housing 141 can play the role of sound insulation and vibration reduction. It can absorb and disperse the noise and vibration generated by the air pump body 142, and reduce the impact on the surrounding environment and users.

[0129] Preferably, the housing 141 integrates the air pump body 142 together to form a relatively independent component. During the production and assembly of the equipment, the air pump component 14 can be installed as a whole, which improves production efficiency. At the same time, when the equipment needs maintenance or repair, the air pump component 14 can be easily disassembled as a whole for inspection and repair without having to disassemble other parts of the equipment too much, thus reducing the difficulty and cost of maintenance.

[0130] Placing the air pump component 14 at the bottom of the inner housing 1 helps optimize the layout of the entire device. The bottom is usually a relatively stable part of the device. Installing the air pump component 14 at the bottom can lower the center of gravity of the device and improve its stability. In addition, the space at the bottom can be used in a reasonable way, avoiding the air pump component 14 from occupying the space of other important areas of the device, making the internal structure of the device more compact and reasonable.

[0131] Preferably, the housing 141 of this embodiment is further provided with a power supply battery 143.

[0132] Specifically, the power supply battery 143 mainly provides power support for the air pump body 142 and other related electronic components.

[0133] By integrating the power supply battery 143 into the housing 141, the device is no longer completely dependent on an external power source. This means that the device can operate normally in environments without an external power outlet, greatly improving the device's flexibility and independence. For example, in outdoor or wilderness locations without mains power, the device can still operate continuously using the power supply battery 143, providing users with corresponding functional services and expanding the device's usage scenarios.

[0134] The housing 141 provides a relatively enclosed and safe space for the power supply battery 143. It can prevent the battery from being affected by external physical impacts, dust, moisture and other factors, reduce the risk of battery damage and extend the battery's service life. At the same time, the housing 141 can also protect the connection circuit between the battery and the air pump body 142, avoid short circuits, open circuits and other faults caused by external interference, and improve the stability and reliability of the equipment.

[0135] Integrating the power supply battery 143 and the housing 141 together optimizes the overall layout of the equipment. Concentrating them within the housing 141 at the bottom of the inner housing 1 allows for a more compact internal structure, reducing space requirements. This layout also facilitates assembly and production, lowering manufacturing costs. Furthermore, a well-designed layout aids in heat dissipation and electromagnetic shielding, reduces interference between different components, and improves overall equipment performance.

[0136] When the power supply battery 143 is depleted or malfunctions, it can be maintained and replaced relatively easily by the user or maintenance personnel because it is housed inside the housing 141. Simply opening the corresponding cover or structure of the housing 141 allows direct access to the battery for charging, battery replacement, and other operations, eliminating the need for extensive disassembly of the entire device and reducing maintenance difficulty and cost.

[0137] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A diffuser, characterized in that: The diffuser includes an inner shell (1) and an outer shell (2) fitted outside the inner shell (1). The inner shell (1) is provided with a receiving cavity (11). The top of the inner shell (1) is provided with an assembly port (12) communicating with the receiving cavity (11). The diffuser also includes an aromatherapy component. The aromatherapy component includes a nozzle seat (3), a mist-emitting nozzle (31) provided on the nozzle seat (3), an essential oil bottle (32) connected to the bottom of the nozzle seat (3), and an atomizing component (4) connected to the mist-emitting nozzle (31) and located in the essential oil bottle (32). The nozzle seat (3) is sealed to the receiving cavity (11) through the assembly port (12). An assembly cavity (13) is provided between the inner shell (1) and the outer shell (2). An air pump component (14) and an air supply channel (15) are provided in the assembly cavity (13). The air supply channel (15) is connected to the air pump component (14) and the accommodating cavity (11) respectively. The air pump component (14) can deliver high-pressure airflow to the accommodating cavity (11) through the air supply channel (15). The nozzle seat (3) is provided with an air inlet channel (33). The air inlet channel (33) can guide the high-pressure airflow flowing into the accommodating cavity (11) to the essential oil bottle (32) so as to drive the gas atomized by the atomizing component (4) to flow to the mist outlet nozzle (31). The inner shell (1) is provided with a connection port (16) that is connected to the air supply channel (15) and the accommodating cavity (11) respectively. The connection port (16) is located in the upper middle part of the accommodating cavity (11).

2. The diffuser according to claim 1, characterized in that: The depth dimension of the accommodating cavity (11) is L, and the distance dimension from the central axis of the connecting port (16) to the bottom of the accommodating cavity (11) is D, wherein D and L satisfy: 0.35L≤D≤L.

3. The diffuser according to claim 1, characterized in that: The gas supply channel (15) includes a gas supply pipe (151) and a connecting plug (152). The two ends of the gas supply pipe (151) are connected to the connecting plug (152) and the air pump component (14) respectively. The output end of the connecting plug (152) is plugged into the connecting port (16).

4. The diffuser according to claim 3, characterized in that: A sealing assembly is provided between the connection port (16) and the connection plug (152). The sealing assembly includes a sealing groove (153) on the outer wall of the inner shell (1), a sealing protrusion (154) on the outer wall of the connection plug (152), and a first sealing ring (155) located between the sealing groove (153) and the sealing protrusion (154).

5. The diffuser according to claim 4, characterized in that: The sealing assembly also includes a sealing protrusion (156) disposed on the outer wall of the inner housing (1), the sealing groove (153) is located inside the sealing protrusion (156), the sealing protrusion (156) is provided with connecting protrusions (157) on both sides, and the sealing protrusion (154) is provided with connecting parts (158) connected to the connecting protrusions (157) on both sides.

6. The diffuser according to claim 1, characterized in that: A second sealing ring (34) is provided between the accommodating cavity (11) and the nozzle seat (3).

7. The diffuser according to claim 1, characterized in that: The atomizing component (4) includes an atomizing core, which includes a first core body (41) and a second core body (42) connected to the outer wall. The first core body (41) has a first channel (411) inside, and the two ends of the first channel (411) are respectively provided with an air inlet (412) and an air outlet (413). The end of the first channel (411) with the air inlet (412) is connected to the output end of the air inlet channel (33). The second core body (42) has a second channel (421) inside, and the two ends of the second channel (421) are respectively provided with an oil inlet (422) and an oil outlet (423). The oil inlet (422) is connected to an oil suction pipe (424). The central axis of the oil outlet (423) intersects with the central axis of the air outlet (413).

8. The diffuser according to claim 7, characterized in that: The central axis of the oil outlet (423) is perpendicular to the central axis of the air outlet (413).

9. The diffuser according to claim 7, characterized in that: The oil outlet (423) and the air outlet (413) are arranged adjacent to each other. The second core (42) has a guide slope (425) on the outer wall of the oil outlet (423). The guide slope (425) gradually slopes upward along the direction from the air outlet (413) to the oil outlet (423).

10. The diffuser according to claim 7, characterized in that: A reinforcing rib (43) is provided between the bottom of the first core (41) and the outer wall of the second core (42).

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