Particle size controllable core and particle size controllable atomizing device

Abstract

The utility model provides a kind of for collocation atomization unit's controllable particle size's machine core and controllable particle size's atomization device, controllable particle size's machine core includes body unit, to cover the aerosol generated by the atomization unit, body unit defines the generated space inside, wherein, body unit has at least one aerosol outlet, at least one aerosol outlet is communicated generated space, and at least one aerosol outlet is configured to be able to export body unit in the aerosol of preset particle size range in generated space, and body unit is configured: make in generated space from aerosol condensation into droplet flow direction different from the flow direction of the aerosol exported body unit.Controllable particle size's atomization device includes atomization unit and controllable particle size's machine core.The utility model's controllable particle size's machine core and controllable particle size's atomization device can let the aerosol in machine core form preset particle size range and then flow out, achieve the control of particle size size.

Description

Technical Field

[0001] This utility model relates to an atomizing device, and more particularly to a controllable particle size mechanism for an atomizing device and an atomizing device having the aforementioned mechanism and controllable particle size. Background Technology

[0002] Traditional nebulization devices rely on aerosol generating elements to produce aerosol, thus determining the aerosol particle size at the time of aerosol generation. For example, micro-mesh nebulizers use microporous plates to determine the aerosol particle size, while jet or ultrasonic nebulizers rely on impact patterns. This design results in uneven aerosol particle size distribution in existing nebulizers, or high costs associated with controlling the aerosol particle size.

[0003] Furthermore, in the process of generating aerosol, the particle size of existing technologies exists in a normal distribution pattern, resulting in an overall larger particle size of the emitted aerosol. This makes it impossible to further reduce the particle size of the aerosol produced by the device, and also makes it impossible to perform more effective deep lung treatment. Utility Model Content

[0004] To address the problems of the prior art, this invention proposes an Aerosol Size Control Core for an atomizing device, and an atomizing device having the aforementioned core that can control and produce smaller particle sizes.

[0005] To achieve the above and other objectives, this utility model proposes a controllable particle size mechanism for use with an atomizing unit, comprising: a body unit for enclosing the aerosol generated by the atomizing unit, the body unit defining a generation space, wherein the body unit has at least one aerosol outlet communicating with the generation space, and the at least one aerosol outlet is configured to export aerosol of a preset particle size range in the generation space to the body unit, and the body unit is configured such that the flow direction of the aerosol condensed in the generation space is different from the flow direction of the aerosol exported from the body unit.

[0006] Optionally, the at least one aerosol outlet is located on the side or bottom of the main body unit.

[0007] Optionally, it also includes a particle size screening structure disposed in the generation space, which is used to prevent aerosols with a particle size larger than the preset particle size range from passing through the at least one aerosol outlet.

[0008] Optionally, the particle size screening structure includes one of a guide surface, a baffle, or a micromesh.

[0009] Optionally, the system also includes a liquid guide section disposed on the main body unit. The liquid guide section includes at least one inclined surface, groove, rib, or curved surface, or any combination thereof. The liquid guide section is used to allow the vapor condensed in the generation space to flow back to the liquid supply area.

[0010] Optionally, the main body unit has multiple aerosol outlets, and the number of particle size screening structures and liquid guides is the same as the number of multiple aerosol outlets, so that the multiple aerosol outlets, particle size screening structures and liquid guides are configured in a one-to-one correspondence.

[0011] This utility model also provides an atomizing device that can control and produce smaller particle sizes, comprising: an atomizing unit for atomizing liquid to generate aerosol; and a generating space according to the above-described controllable particle size mechanism, wherein the generating space accommodates or is adjacent to the atomizing unit to cover the aerosol generated by the atomizing unit.

[0012] Optionally, the atomizing unit is one of a pneumatic jet atomizing module, an ultrasonic atomizing module, or a micro-mesh atomizing module.

[0013] Optionally, the atomizing unit is a pneumatic jet atomizing module, and the body unit is provided with an impact element. The impact element is configured to generate primary atomized mist by being impacted by the high-speed airflow generated by the atomizing unit.

[0014] Optionally, the body unit also has a mounting portion and is aligned with the nozzle of the atomizing unit. The impact element is mounted on the body unit via the mounting portion in a detachable or fixed manner.

[0015] Optionally, the nozzle of the atomizing unit and the main body unit are integrally formed, and the relative position of the nozzle and the main body unit remains fixed.

[0016] Therefore, the controllable particle size mechanism of this invention utilizes its internal structural design to allow the aerosol within the mechanism to form a preset particle size range before flowing out. Larger particles (outside the preset range) condensed into droplets are then returned to the original liquid supply area via a liquid guide section for re-atomization. This design allows for particle size control without altering the original atomizing device structure, thereby reducing development time and cost. The controllable particle size mechanism of this invention can also be combined with an atomizing unit to form a controllable particle size atomizing device. Furthermore, the flow direction of the aerosol within the preset particle size range from the aerosol outlet differs from that of the condensed droplets. This improves upon existing technologies where the produced aerosol and returned liquid flow from the same outlet, resulting in large droplets remaining along the aerosol path (medicine cup, breathing tube, mask, mouthpiece) and failing to atomize fully, leading to medication residue and waste.

[0017] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings. However, this description and drawings are only used to illustrate this utility model and are not intended to limit the scope of this utility model in any way. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the controllable particle size mechanism according to the first embodiment of the present invention; Figure 2 for Figure 1 A three-dimensional diagram from another perspective; Figure 3 This is a cross-sectional schematic diagram of the controllable particle size mechanism according to the first embodiment of this utility model; Figure 4 This is an exploded view of the atomizing device with controllable particle size according to the first embodiment of this utility model; Figure 5 This is a three-dimensional schematic diagram of the controllable particle size mechanism according to the second embodiment of the present invention; Figure 6 This is a three-dimensional schematic diagram of the controllable particle size mechanism according to the third embodiment of the present invention; Figure 7 This is a three-dimensional schematic diagram of the controllable particle size mechanism according to the fourth embodiment of the present invention; Figure 8 This is a three-dimensional schematic diagram of the controllable particle size mechanism according to the fifth embodiment of the present invention; Figure 9 This is a three-dimensional schematic diagram of the controllable particle size mechanism according to the sixth embodiment of the present invention; Figure 10 A drug sedimentation distribution diagram comparing other brands of nebulizers with that of this invention; Figure 11 This is a drug particle size distribution diagram for an atomizing device using the controllable particle size mechanism of this invention.

[0019] Figure Labels 1. Body Unit 11. Top Wall 12 sidewalls 13. Aerosol outlet 14 Assembly Port 15 Installation Department 16 through holes 2. Particle size screening structure 3. Liquid guide section 4 atomizing units 41 medicine cups 42 Venturi tubes 43 Impact elements 431 Nozzle outlet 5 Output tubes S generation space Detailed Implementation To fully understand this utility model, the following specific embodiments, in conjunction with the accompanying drawings, will provide a detailed description. Those skilled in the art can understand the purpose, features, and effects of this utility model from the content disclosed in this specification. It should be noted that this utility model can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the inventive point of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustration only and are not depictions based on actual dimensions. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the claims of this utility model. The explanation is as follows: like Figures 1 to 4 As shown, the controllable particle size mechanism of the first embodiment of this utility model is used in conjunction with the atomizing unit 4 to generate aerosol within a preset particle size range. The controllable particle size mechanism includes a body unit 1.

[0020] Body unit 1 is used to enclose the aerosol generated by atomizing unit 4, and body unit 1 defines an internal generation space S to form a controlled flow environment. See Figure 1 In this embodiment, the main body unit 1 is in the form of a cover, having a top wall 11 and side walls 12. The top wall 11 and side walls 12 define the aforementioned generation space S to accommodate at least a portion of the atomizing unit 4. The atomizing unit 4 can enter through the assembly port 14 of the main body unit 1 and be assembled with the main body unit 1. However, the present invention is not limited to this; the specific structure of the main body unit 1 can be adjusted as needed, and any element that can cover the aerosol generated by the atomizing unit 4 and has a generation space S can be used as the main body unit 1 of the present invention.

[0021] The main body unit 1 has at least one aerosol outlet 13, which is connected to the generation space S and is configured to export aerosol with a preset particle size range from the generation space S to the main body unit 1. Specifically, in this embodiment, the top wall 11 has multiple aerosol outlets 13, allowing aerosol with smaller particle sizes falling within a preset particle size range (e.g., less than or equal to 3 micrometers) formed from liquid atomization to pass upwards. Other aerosols with larger particle sizes cannot pass through the aerosol outlets 13 and eventually condense in the generation space S and flow back along the internal wall of the main body unit 1. In other words, only aerosols with sufficiently small particle sizes can pass through the controllable particle size mechanism and be ejected upwards as atomized aerosol. By adjusting parameters such as the size, shape, height, position, number, and distribution of the aerosol outlets 13, the preset particle size range can be determined, thus ensuring that only small-particle-size aerosols with better therapeutic effects and the ability to penetrate deep into the lungs are exported from the main body unit 1 and enter the depths of the lungs. The remaining large-diameter aerosols that do not meet the preset particle size range condense into droplets and flow back to the liquid supply area, which is usually a medicine cup containing liquid medicine. These reflowing droplets can continue to be atomized by the atomizing unit 4, and will not adhere to the cup wall, thus avoiding waste of medicine residue.

[0022] The main body unit 1 of this invention is further configured such that the flow direction of the aerosol condensing into droplets in the generation space S is different from the flow direction of the aerosol exiting the main body unit 1 via at least one aerosol outlet 13. For example... Figures 1 to 3 As shown, aerosols within a preset particle size range are light enough to rise through the aerosol outlet 13, while aerosols outside the preset particle size range condense into droplets and flow back along the interior of the main body unit 1 (e.g., sidewall 12). Aerosols within the preset particle size range do not follow the condensed droplets in the same direction of flow. Therefore, a particle size limitation is effectively imposed.

[0023] In this embodiment, the aerosol outlet 13 is located on the top surface (top wall 11) of the main body unit 1, and the condensed droplets flow to the assembly port 14 (from which they can leave the main body unit 1, or remain in a liquid state in the generation space S awaiting atomization again). However, the present invention is not limited to this. The aerosol outlet 13 can also be located on the side or bottom surface of the main body unit 1, and the flow direction of the condensed droplets can be designed to be different from the flow direction of the aerosol through the aerosol outlet 13.

[0024] Furthermore, such as Figure 2 and Figure 3As shown, in this embodiment, the controllable particle size mechanism further includes a particle size screening structure 2. The particle size screening structure 2 is disposed in the generation space S and is used to prevent aerosol particles larger than a preset particle size range from passing through the aerosol outlet 13. The particle size screening structure 2 includes, for example, a guide surface, a baffle, or a micromesh. Any structure that allows small-sized aerosol particles to pass through and blocks large-sized aerosol particles from passing through the aerosol outlet 13 can be used as the particle size screening structure 2 of this invention.

[0025] In this embodiment, the particle size screening structure 2 serves as a guide surface. Only aerosol particles with sufficiently small diameters can bypass the particle size screening structure 2 and exit the main body unit 1 through the aerosol outlet 13. Aerosol particles with larger diameters that cannot bypass the particle size screening structure 2 remain inside the main body unit 1. Therefore, the particle size screening structure 2 filters or retains aerosol particles larger than a preset particle size range to improve the uniformity and efficiency of the output aerosol particle size. Furthermore, by adjusting the length, shape, and opening size of the particle size screening structure 2, the preset particle size range can be adjusted to further limit the particle size of the aerosol output by the controllable particle size mechanism.

[0026] Furthermore, such as Figure 3 As shown, in this embodiment, the controllable particle size mechanism further includes a liquid guide section 3, disposed on the main body unit 1. The liquid guide section 3 includes at least one inclined surface, groove, rib, or curved surface, or any combination thereof. The liquid guide section 3 is used to allow the aerosol (droplets) condensed in the generation space S to flow back to the liquid supply area for re-atomization by gravity or inertia. The liquid guide section 3 can be a structure combined with the particle size screening structure 2, that is, the structure formed by the particle size screening structure 2 and the liquid guide section 3 has the dual purpose of "allowing aerosol with a particle size within a preset particle size range to pass through the aerosol outlet 13, filtering and retaining aerosol larger than the preset particle size range" and "allowing the droplets condensed in the generation space S to flow back".

[0027] Furthermore, such as Figure 2 and Figure 3 As shown, in this embodiment, the main body unit 1 has multiple aerosol outlets 13, and the number of particle size screening structures 2 and liquid guide sections 3 is the same as the number of aerosol outlets 13, so that the multiple aerosol outlets 13, particle size screening structures 2 and liquid guide sections 3 are configured in a one-to-one correspondence. That is, each aerosol outlet 13 is provided with a set of particle size screening structures 2 and liquid guide sections 3 to form multiple sets of independent and parallel atomization paths, thereby improving the overall atomization efficiency and mist exhaust stability.

[0028] Furthermore, such as Figure 4 As shown, in this embodiment, the controllable particle size core is combined with the atomizing unit 4 to form an atomizing device with controllable particle size.

[0029] The atomizing unit 4 is used to atomize the liquid to produce an aerosol. A generating space S accommodates or is adjacent to the atomizing unit 4 to cover the aerosol produced by the atomizing unit 4. The atomizing unit 4 is, for example, one of a pneumatic jet atomizing module, an ultrasonic atomizing module, or a micro-mesh atomizing module. This invention does not limit the type of atomizing unit 4.

[0030] Figure 4 The atomizing unit 4 shown is exemplified by a pneumatic jet atomizing module. The atomizing unit 4 of this pneumatic jet atomizing module type includes a medicine cup 41, a venturi tube 42, and an impact element 43. The venturi tube 42 and its gas nozzle outlet 431 provide the power for the high-speed impact of the gas. The impact element 43 can be formed in various ways. In this embodiment, the impact element 43 is fixedly formed at one end of the venturi tube 42 and then assembled inside the main body unit 1. However, this invention is not limited to this; the impact element 43 can also be directly formed inside the main body unit 1, or the impact element 43 can be an independent component connected to the main body unit 1 and the venturi tube 42 through assembly. The assembly method, formation method, and specific shape and size of the impact element 43 can be appropriately varied as needed. This invention is not limited to the implementation of the impact element and impact surface.

[0031] When the gas ejected from the nozzle outlet 431, carrying liquid, impacts the impact element 43 located inside the main body unit 1, it generates droplets of numerous sizes. Only droplets with sufficiently small particle sizes can bypass the particle size screening structure 2 and exit the atomizing device of this invention through the atomization outlet 13. In other words, the impact element 43 is configured to generate primary atomized atomized mist by being impacted by the high-speed airflow generated by the atomizing unit 4.

[0032] Furthermore, in this embodiment, the atomizing device with controllable particle size also includes an output pipe 5. The output pipe 5 is connected to the aerosol outlet 13 to deliver aerosol with a preset particle size range exported from the aerosol outlet 13 to the human body.

[0033] Furthermore, such as Figure 2 and Figure 3 As shown, in this embodiment, the body unit 1 also has a mounting portion 15, which is aligned with the impact element 43 of the atomizing unit 4. The impact element 43 is disposed on the body unit 1 via the mounting portion 15 in a detachable or fixed manner. In this embodiment, the mounting portion 15 is, for example, a groove (mounting seat) whose shape matches that of the impact element 43. In other embodiments, the mounting portion 15 may also be, for example, a mounting hole, to accordingly mount the impact element 43.

[0034] Furthermore, such as Figure 9As shown, in the sixth embodiment of this utility model, the nozzle outlet 431 of the atomizing unit 4 and the main body unit 1 are integrally formed, thus keeping the relative position of the nozzle outlet 431 and the main body unit 1 fixed. Therefore, there is no relative displacement between the two, which can improve the operational stability of the device and the consistency of atomization quality.

[0035] This novel nebulizer uses a controllable particle size mechanism paired with a pneumatic jet nebulization module, producing an aerosol with a mass median aerodynamic diameter (MMAD) of less than 3 micrometers. In other words, half the mass of the aerosol is less than 3 micrometers. This allows most of the aerosol particles to penetrate deep into the respiratory tract, reaching the lungs, rather than remaining only in the mouth and upper respiratory tract. Therefore, it provides more effective nebulization therapy and reduces the burden of inhaling excessive medication.

[0036] The controllable particle size mechanism of this invention filters the primary atomized aerosol within the main unit 1. Through the structural design of the main unit 1, the primary atomized aerosol is divided into two parts: one part, with a non-preset particle size, flows back to the liquid, while the other part, with a preset particle size, leaves the main unit 1 through the aerosol outlet 13. This mechanism prevents condensed droplets from adhering outside the main unit 1, thus avoiding liquid recirculation and re-atomization (reducing drug delivery rate). Furthermore, the structural design within the main unit 1 allows for control over the particle size and concentration of the atomized aerosol, improving upon existing atomization devices that suffer from excessively wide particle size distribution, excessive liquid residue, and intermittent or unstable atomization.

[0037] Furthermore, such as Figure 5 As shown, the present invention proposes a second embodiment of a controllable particle size mechanism, in which the impact element 43 is directly formed on the top wall 11. The remaining portion is hollowed out to form the aerosol outlet 13.

[0038] Furthermore, such as Figure 6 As shown, this utility model proposes a third embodiment of a controllable particle size mechanism, which differs from the first embodiment mainly in the shape and number of aerosol outlets 13, as well as the style of the particle size screening structure 2 and the liquid guiding section 3. In the third embodiment, the number of aerosol outlets 13 is six. Each aerosol outlet 13 in the third embodiment has a set of particle size screening structure 2 and liquid guiding section 3.

[0039] Furthermore, such as Figure 7As shown, the present invention proposes a fourth embodiment of a controllable particle size mechanism, the main difference of which is that the body unit 1 has a through hole 16, and each aerosol outlet 13 surrounds the through hole 16. The purpose of the through hole 16 is to allow for the installation and integration with the bottle body and impact element (external element) of an existing atomizing device to generate atomized droplets.

[0040] Furthermore, such as Figure 8 As shown, the present invention proposes a fifth embodiment of a controllable particle size mechanism, the main difference of which from the aforementioned embodiments is that it has only a single aerosol outlet 13, and this aerosol outlet 13 also serves as the aforementioned through-hole 16. In other words, the fifth embodiment of the controllable particle size mechanism is also intended for direct integration into existing atomizing devices, with the impact element (external element) directly disposed in the single aerosol outlet 13. The aerosol generated by the impact element bypasses the particle size screening structure 2 and passes through the aerosol outlet 13, thus achieving particle size screening and control. In the fifth embodiment, multiple sets of particle size screening structures 2 and liquid guide sections 3 are used together for a single aerosol outlet 13.

[0041] The above embodiments demonstrate that the controllable particle size mechanism and the controllable particle size atomizing device of this utility model can present diverse structures. The impact element 43 can be an internal component or integrated into existing atomizing device products (external component). The impact surface of the impact element 43 can be designed in different shapes, such as a plane, a concave surface, or a crossbar, to generate aerosol. By designing the size, shape, number, and placement of the aerosol outlet 13, the particle size, particle size concentration, and atomization rate of the aerosol can be controlled, thereby determining the preset particle size range.

[0042] Experimental verification To verify that the controllable particle size mechanism and atomizing device of this invention are indeed superior to many existing atomizing devices, this invention provides the following test report. The performance of commercially available jet small volume nebulization devices was tested in terms of aerosol particle size distribution after high-pressure gas atomization, atomization speed, and remaining medication in the medicine cup.

[0043] Test items: 1. Test the following small spray cans A. G Company Small-volume spray bottle B. P Company Small-volume spray bottles C. The atomization device of this utility model with controllable particle size 2. Measure the particle sizing of the spray can according to the Annex D smoke density standard. Test standard: Annex D (Test methods for particlesizing) of ISO 27427:2013. Research conditions: In accordance with ISO standards, the room temperature was maintained at 23±2 ℃ and the relative humidity was 45-75%.

[0044] Research Instruments and Settings: Based on the Annex D smoke density standard, a NextGeneration Impactor (MSP, Shoreview, Minnesota) was used. The operating flow rate was calibrated using a dry gas flow meter (TSIInstrument Inc. Shoreview, Minnesota, Model 4040) and was 15.0 ± 0.1 L / min. The collection stages were divided into 8 levels. After calibration experiments, the particle sizes of the collected aerosols were 14.10 μm, 8.61 μm, 5.39 μm, 3.30 μm, 2.08 μm, 1.36 μm, 0.98 μm, and <0.5 μm, respectively.

[0045] Water used for reagents: Research-grade double-filtered water Trial reagent: 0.1% Salbutamol sulfate (Xindong Company) Drug dosage analysis: The absorbance of the samples was measured using a UV-Vis Spectrophotometer (ThermoScitificInc., Waltham, MA USA) at a wavelength of 276 nm. Before the experiment, a solution of the drug with a known concentration was prepared, placed in the spectrophotometer, and the absorbance was obtained. The relevant calculation formula was then derived to calculate the subsequent sample concentration.

[0046] Test program: A. The suction flow rate of the impact sampler was confirmed to be 15.0 ± 10% L / min using a TSI flow meter.

[0047] B. 0.2% salbutamol, use a micropipette to draw 2.5 mL (5 mg) into the medicine cup.

[0048] C. 50 psig oxygen with TSI flow meter calibrated / confirmed flow rate setting.

[0049] D. Turn on the oxygen to the specified flow rate and start spraying.

[0050] E. Spray until no more aerosol is produced, and record the spraying time.

[0051] F. Disassemble the impactor, add secondary water to each stage to dissolve and extract the drug, shake for two minutes.

[0052] G. Measure the absorbance of the extracted drug solution using a spectrophotometer, and calculate the drug dosage using the formula "absorbance-concentration".

[0053] H. Input the mass data of each sedimentation stage into a dedicated program to calculate the sedimentation drug distribution and obtain MMAD, geometric standard deviation (GSD), and the proportion of inhalable particles.

[0054] Test results are as follows Figure 10 As shown, Figure 10 A comparative graph of drug accumulation curves for the atomization devices of G Company's small-volume spray bottles, P Company's small-volume spray bottles, and the controllable particle size core of this utility model. Figure 11 This is a drug particle size distribution diagram for an atomizing device using the controllable particle size mechanism of this invention.

[0055] The test results show that the atomizing device using the controllable particle size mechanism of this invention produces droplet sizes significantly smaller than the control group (small-volume spray bottles from G Technology Company and P Company). Notably, over 96% of the atomized droplets produced by the atomizing device using the controllable particle size mechanism of this invention have a droplet size of 1.36 μm or less. The test results above demonstrate that the controllable particle size mechanism of this invention has a significant effect on reducing the aerosol droplet size (from 5.03 μm to 1.54 μm) and increasing the quantity of aerosols with the smallest droplet size.

[0056] This utility model has been disclosed above with reference to preferred embodiments. However, those skilled in the art should understand that the embodiments described are merely for illustrating the utility model and should not be construed as limiting its scope. It should be noted that all variations and substitutions equivalent to the described embodiments should be included within the scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A core capable of controlling particle size, used in combination with an atomizing unit, characterized in that, The controllable particle size mechanism includes: The body unit is used to enclose the aerosol generated by the atomizing unit, and the body unit defines the generation space. The body unit has at least one aerosol outlet, which is connected to the generation space, and is configured to export aerosol of a predetermined particle size range from the generation space to the body unit. The body unit is configured such that the flow direction of the aerosol condensing into droplets in the generation space is different from the flow direction of the aerosol exiting the body unit.

2. The machine core of claim 1, wherein, The at least one aerosol outlet is disposed on the top, side or bottom surface of the main body unit.

3. The machine core of claim 1, wherein, It also includes a particle size screening structure, which is disposed in the generation space and is used to prevent aerosols with a particle size larger than the preset particle size range from passing through the at least one aerosol outlet.

4. The machine core of claim 3, wherein The particle size screening structure includes one of the following: a guide surface, a baffle, or a micromesh.

5. The machine kernel of claim 4, wherein, It also includes a liquid guide section disposed on the main body unit. The liquid guide section includes at least one inclined surface, groove, rib or curved surface, or any combination thereof. The liquid guide section is used to allow the vapor condensed in the generation space to flow back to the liquid supply area.

6. The machine core of claim 5, wherein, The main body unit has multiple aerosol outlets, and the number of particle size screening structures and liquid guides is the same as the number of multiple aerosol outlets, so that the multiple aerosol outlets, particle size screening structures and liquid guides are configured in a one-to-one correspondence.

7. A particle size controllable atomizing device, characterized by comprising: The atomizing device with controllable particle size includes: Atomizing unit, used to atomize liquid to produce a mist; and The controllable particle size mechanism according to any one of claims 1 to 6 is installed in the atomizing unit to regulate the particle size of the aerosol.

8. The atomizing device with controllable particle size according to claim 7, characterized in that, The atomizing unit is one of a pneumatic jet atomizing module, an ultrasonic atomizing module, or a micro-mesh atomizing module.

9. The particle size controllable atomizing device according to claim 8, wherein The atomizing unit is a pneumatic jet atomizing module. The body unit has an impact element inside, which is configured to generate primary atomized mist by being impacted by the high-speed airflow generated by the atomizing unit.

10. The particle size controllable atomizing device according to claim 9, wherein The main body unit also has a mounting part, which is aligned with the nozzle of the atomizing unit. The impact element is mounted on the main body unit via the mounting part in a detachable or fixed manner.

11. The particle size controllable atomizing device according to claim 8, wherein The nozzle of the atomizing unit and the main body unit are integrally formed, and the relative position of the nozzle and the main body unit remains fixed.

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