Atomizing mechanism and atomizer

Abstract

The utility model discloses an atomization mechanism and atomizer, this atomization mechanism includes: casing, acoustic impedance matching component and ultrasonic atomization piece, acoustic impedance matching component and ultrasonic atomization piece install in the casing, and the top of casing is equipped with first through -hole, and first through -hole, acoustic impedance matching component and ultrasonic atomization piece are set gradually from top to bottom, and first through -hole is used for providing the passageway that is communicated to the top of acoustic impedance matching component for the liquid to be atomized, and the acoustic impedance value of ultrasonic atomization piece, acoustic impedance matching component and the liquid to be atomized decreases gradually. The utility model discloses through setting the acoustic impedance value of ultrasonic atomization piece, acoustic impedance matching component and the liquid to be atomized as decreasing gradually, utilizes acoustic impedance matching principle to reduce the energy loss in ultrasonic wave propagation, has improved ultrasonic wave energy utilization ratio significantly, compares traditional atomization mechanism, has improved atomization efficiency significantly, and the mist drop is more even.

Description

Technical Field

[0001] This utility model relates to the field of atomizing device technology, and in particular to an atomizing mechanism and atomizer. Background Technology

[0002] In numerous applications requiring the conversion of liquids into a mist, such as medical nebulization therapy, industrial humidification, and environmental purification, efficient and stable nebulization mechanisms play a crucial role. Traditional nebulization mechanisms have significant limitations in terms of nebulization efficiency and droplet uniformity. For example, in medical nebulization therapy, poor nebulization can prevent medication from effectively reaching the lungs and other target areas, affecting treatment outcomes; in industrial humidification scenarios, uneven nebulization can cause abnormal local humidity levels, thereby impacting product quality. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of low atomization efficiency and uneven atomization particles in existing atomization equipment, and to provide an atomization mechanism and atomizer.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: In a first aspect, this utility model provides an atomizing mechanism, comprising: a housing, an acoustic impedance matching component, and an ultrasonic atomizing plate. The acoustic impedance matching component and the ultrasonic atomizing plate are installed inside the housing. A first through hole is provided at the top of the housing. The first through hole, the acoustic impedance matching component, and the ultrasonic atomizing plate are arranged sequentially from top to bottom. The first through hole is used to provide a channel for the liquid to be atomized to communicate with the upper part of the acoustic impedance matching component. The acoustic impedance values ​​of the ultrasonic atomizing plate, the acoustic impedance matching component, and the liquid to be atomized decrease sequentially.

[0005] In one embodiment, the acoustic impedance matching component includes n acoustic impedance matching layers arranged sequentially from top to bottom, the acoustic impedance matching layers being located between the ultrasonic atomizing sheet and the anti-corrosion isolation membrane; the acoustic impedance values ​​of the n acoustic impedance matching layers decrease sequentially from bottom to top and are located between the acoustic impedance values ​​of the ultrasonic atomizing sheet and the anti-corrosion isolation membrane.

[0006] In one embodiment, the acoustic impedance value of the ultrasonic atomizing plate is Z0, and the acoustic impedance value of the liquid to be atomized is Z... n+1 The acoustic impedance value of the k-th acoustic impedance matching layer is 0.9Z. k Up to 1.1Z k Z k = Z0^{1 - k / (n+1)}*Z n+1 ^{k / (n+1)}, (k=1,2,...,n).

[0007] In one embodiment, the wavelength of the ultrasonic wave emitted by the ultrasonic atomizing sheet in the k-th acoustic impedance matching layer is λ. k The thickness of the acoustic impedance matching layer in the kth layer is 0.95d. k up to 1.05d k , d k =λ k / 4.

[0008] In one embodiment, the nth acoustic impedance matching layer from bottom to top is an anti-corrosion isolation film, which is located between the first through hole and the ultrasonic atomizing sheet.

[0009] In one embodiment, the first acoustic impedance matching layer from bottom to top is a protective layer, which is attached to the upper surface of the ultrasonic atomizing sheet.

[0010] In one embodiment, the number of acoustic impedance matching layers is three, wherein the second acoustic impedance matching layer is a liquid medium disposed between the anti-corrosion isolation membrane and the protective layer.

[0011] In one embodiment, a sealed cavity is formed between the anti-corrosion isolation membrane, the housing, and the protective layer, and the liquid medium is contained within the sealed cavity.

[0012] In one embodiment, the edge of the anti-corrosion isolation membrane is connected to the housing, and the middle portion of the anti-corrosion isolation membrane is parallel to the ultrasonic atomizing sheet.

[0013] In one embodiment, the housing has a second through hole between the anti-corrosion isolation membrane and the protective layer, and a transition zone is provided between the edge and the middle portion of the anti-corrosion isolation membrane, which transitions from top to bottom. The middle portion of the anti-corrosion isolation membrane and the transition zone are located within the second through hole, so that the cross-section of the sealing cavity is U-shaped.

[0014] In one embodiment, an elastic shell is installed inside the housing, the ultrasonic atomizing sheet is installed inside the elastic shell, and the elastic shell has an air cavity below the ultrasonic atomizing sheet.

[0015] In one embodiment, the housing includes a cover and a base connected to the bottom of the cover, the edge of the anti-corrosion isolation membrane is pressed between the cover and the base, the first through hole is located at the top of the cover, the second through hole is located at the top of the base, and the ultrasonic atomizing sheet is installed inside the base.

[0016] In one embodiment, a sealing ring is provided on the inner side of the cover, and the edge of the anti-corrosion isolation membrane is pressed between the sealing ring and the base.

[0017] In one embodiment, the top of the base is provided with an annular connecting groove, and the bottom of the cover is provided with a first connecting plate on the outer periphery. The first connecting plate is arranged in an annular shape and is ultrasonically welded to the annular connecting groove.

[0018] In one embodiment, a second connecting plate extends upward from the base, the second connecting plate is arranged in a ring and fitted into the cover body, and the sealing ring tightly abuts against the inner side of the second connecting plate; an elastic reinforcing ring is also sleeved on the outer periphery of the cover body.

[0019] Secondly, this utility model embodiment also provides an atomizer, including the atomizing mechanism as described above, and an atomizing cup body, wherein the atomizing mechanism is installed below the atomizing cup body, and the inner cavity of the atomizing cup body is connected to the first through hole.

[0020] The beneficial effects of the atomizing mechanism and atomizer of this utility model compared with the prior art are as follows: by setting the acoustic impedance values ​​of the ultrasonic atomizing plate, the acoustic impedance matching component and the liquid to be atomized to decrease sequentially, the energy loss in the propagation of ultrasonic waves is reduced by utilizing the acoustic impedance matching principle, which significantly improves the energy utilization rate of ultrasonic waves. Compared with traditional atomizing mechanisms, it significantly improves atomization efficiency and produces more uniform droplets.

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A first-view structural schematic diagram of the atomizing mechanism provided in an embodiment of the present utility model; Figure 2 A second-view structural schematic diagram of the atomizing mechanism provided in an embodiment of this utility model; Figure 3 for Figure 2 A sectional view of AA; Figure 4 An exploded view of the atomizing mechanism provided in an embodiment of this utility model; Figure 5 A schematic diagram of the base structure of the atomizing mechanism provided in an embodiment of this utility model; Figure 6 for Figure 5 A cross-sectional view of BB; Figure 7This is a schematic diagram of the atomizer provided in an embodiment of the present utility model; Figure 8 An exploded schematic diagram of the atomizer provided in an embodiment of this utility model.

[0024] Figure Labels 10. Housing; 101. First through hole; 102. Second through hole; 103. Cover; 1031. First connecting plate; 104. Base; 1041. Annular plate; 1042. Annular connecting groove; 1043. Second connecting plate; 20. Acoustic impedance matching component; 201. Anti-corrosion isolation membrane; 2011. Edge; 2012. Middle part; 2013. Transition zone; 30. Ultrasonic atomizing plate; 40. Sealing cavity; 50. Elastic shell; 501. Air cavity; 60. Pressure plate; 70. Shielding cover; 80. Control plate; 90. Sealing ring; 100. Elastic reinforcing ring; 110. Atomizing cup; 1101. Mounting hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0032] See Figures 1 to 6 As shown, this utility model embodiment provides an atomizing mechanism, including: a housing 10, an acoustic impedance matching component 20, and an ultrasonic atomizing plate 30. The acoustic impedance matching component 20 and the ultrasonic atomizing plate 30 are installed inside the housing 10. A first through hole 101 is provided at the top of the housing 10. The first through hole 101, the acoustic impedance matching component 20, and the ultrasonic atomizing plate 30 are arranged sequentially from top to bottom. The first through hole 101 is used to provide a channel for the liquid to be atomized to communicate with the upper part of the acoustic impedance matching component 20. The acoustic impedance values ​​of the ultrasonic atomizing plate 30, the acoustic impedance matching component 20, and the liquid to be atomized decrease sequentially.

[0033] Specifically, the core design of this embodiment lies in setting the acoustic impedance values ​​of the ultrasonic atomizing plate 30, the acoustic impedance matching component 20, and the liquid to be atomized to decrease sequentially. This utilizes the acoustic impedance matching principle to reduce energy loss during ultrasonic wave propagation, thereby improving atomization efficiency. When the ultrasonic atomizing plate 30 is energized, it generates ultrasonic waves that propagate upwards. Because the acoustic impedance value of the acoustic impedance matching component 20 is between that of the ultrasonic atomizing plate 30 and the liquid to be atomized and decreases sequentially, the ultrasonic waves can be smoothly transmitted from the ultrasonic atomizing plate 30 to the liquid to be atomized. Under the action of the ultrasonic waves, water molecules on the surface of the liquid to be atomized gain sufficient energy to overcome surface tension and are atomized into tiny droplets. This embodiment significantly improves the utilization rate of ultrasonic energy through acoustic impedance matching design, and compared to traditional atomization mechanisms, it can significantly improve atomization efficiency and produce more uniform droplets.

[0034] In one specific embodiment, the acoustic impedance matching component 20 includes n acoustic impedance matching layers arranged sequentially from top to bottom, with the acoustic impedance matching layers located between the ultrasonic atomizing sheet 30 and the anti-corrosion isolation film 201; the acoustic impedance values ​​of the n acoustic impedance matching layers decrease sequentially from bottom to top and are located between the acoustic impedance values ​​of the ultrasonic atomizing sheet 30 and the anti-corrosion isolation film 201.

[0035] Specifically, this multi-layer design refines the acoustic impedance transition, reduces energy loss during ultrasonic wave transmission, and further improves atomization efficiency. When ultrasonic waves are emitted from the ultrasonic atomizing plate 30, they pass sequentially through each acoustic impedance matching layer. Because the acoustic impedance value of each matching layer gradually decreases, it forms a good match with the previous layer, allowing the ultrasonic waves to propagate smoothly between layers, reducing reflection and energy loss, and ultimately reaching the liquid to be atomized for efficient atomization. Compared to the single-layer acoustic impedance matching component 20, the multi-layer design further improves atomization efficiency, thereby further enhancing droplet uniformity and achieving a better atomization effect.

[0036] In one specific embodiment, the acoustic impedance value of the ultrasonic atomizing plate 30 is Z0, and the acoustic impedance value of the liquid to be atomized is Z... n+1 The acoustic impedance value of the k-th acoustic impedance matching layer is 0.9Z. k Up to 1.1Z k Z k = Z0^{1 - k / (n+1)}*Z n+1 ^{k / (n+1)}, (k=1,2,...,n).

[0037] Specifically, this formula is derived from acoustic theory. By accurately calculating the acoustic impedance value of each layer, it achieves optimal matching between each layer and the ultrasonic atomizing sheet 30 and the liquid to be atomized, maximizing ultrasonic transmission efficiency. Precise acoustic impedance matching calculations can effectively improve ultrasonic energy transmission efficiency, thereby further improving atomization efficiency and ensuring the stability of atomization effects under different operating conditions. Simultaneously, the actual acoustic impedance value of the k-th acoustic impedance matching layer is allowed to be within 0.9Z. k Up to 1.1Z k Within a certain range, this design retains the core matching logic of decreasing acoustic impedance gradient while adapting to the actual error in material preparation with a tolerance range of ±10%, significantly reducing production difficulty and cost.

[0038] In one specific embodiment, the wavelength of the ultrasonic wave emitted by the ultrasonic atomizing sheet 30 in the k-th acoustic impedance matching layer is λ. k The thickness of the k-th acoustic impedance matching layer is 0.95d. k up to 1.05d k d k =λ k / 4.

[0039] Specifically, this design is based on the quarter-wavelength matching principle. This thickness allows for good impedance matching at the two interfaces between layers, reducing ultrasonic wave reflection and improving energy transmission efficiency. When the ultrasonic wave propagates to the k-th acoustic impedance matching layer, because the layer thickness is approximately one-quarter of the wavelength, the reflected wave interferes with the incident wave, greatly reducing the reflected wave energy. Most of the energy successfully penetrates the layer and propagates upwards, ultimately acting on the liquid to be atomized. This design further reduces energy loss, further improves atomization efficiency, improves droplet size distribution, and increases the proportion of small-diameter droplets, which is beneficial for scenarios with strict requirements on droplet size, such as medical nebulization inhalation therapy. Simultaneously, it allows for an actual thickness of 0.95d. k up to 1.05d k Within a range of fluctuations (±5% tolerance), this design follows the physical laws of enhanced acoustic interference while also being compatible with the precision limitations of machining, thus avoiding a surge in processing costs due to excessive pursuit of dimensional accuracy.

[0040] See Figures 3 to 4 As shown, in a specific embodiment, the nth acoustic impedance matching layer from bottom to top is an anti-corrosion isolation film 201, which is located between the first through hole 101 and the ultrasonic atomizing sheet 30.

[0041] Specifically, this design primarily protects the lower acoustic impedance matching layer and the ultrasonic atomizing plate 30 from corrosion by the atomizing liquid, especially for corrosive liquids. It also prevents leakage of the atomizing liquid, ensuring the normal operation of the mechanism. The atomizing liquid flows down from the first through-hole 101 and first contacts the anti-corrosion isolation membrane 201. The anti-corrosion isolation membrane 201 prevents direct contact with the components below, thus preventing corrosion. Ultrasonic waves are transmitted to the atomizing liquid through the anti-corrosion isolation membrane 201 to achieve atomization. This design effectively protects critical internal components, extends the service life of the atomizing mechanism, and its excellent sealing performance ensures the stability and reliability of the atomization process.

[0042] In one specific embodiment, the first acoustic impedance matching layer from bottom to top is a protective layer (not shown in the figure), which is attached to the upper surface of the ultrasonic atomizing sheet 30.

[0043] Specifically, the purpose of the protective layer is to protect the ultrasonic atomizing plate 30 from mechanical damage, chemical corrosion, and other adverse effects. Simultaneously, it participates in the matching process as part of the acoustic impedance matching layer, ensuring effective ultrasonic wave transmission. During atomization, the protective layer withstands the pressure and impact from above to prevent damage to the ultrasonic atomizing plate 30. It also adheres closely to the ultrasonic atomizing plate 30, effectively transmitting the ultrasonic waves to the acoustic impedance matching layer above, and then to the liquid to be atomized. This design significantly improves the reliability and service life of the ultrasonic atomizing plate 30, enabling it to operate stably in harsh environments. Furthermore, the acoustic impedance matching function does not affect atomization efficiency, ensuring stable overall atomization performance.

[0044] In one specific embodiment, the number of acoustic impedance matching layers is three, wherein the second acoustic impedance matching layer is a liquid medium disposed between the anti-corrosion isolation membrane 201 and the protective layer.

[0045] Specifically, the liquid medium can better fill the space, reduce abrupt changes in acoustic impedance, adjust the acoustic impedance value, and improve the overall matching effect. After the ultrasonic waves are emitted from the ultrasonic atomizing plate 30, they first pass through the first protective layer into the liquid medium. The liquid medium, with its continuity and fluidity, reduces reflection and energy loss, and then transmits the signal to the anti-corrosion isolation membrane 201, finally acting on the liquid to be atomized to achieve atomization. In this embodiment, by using a liquid medium as an intermediate layer to further optimize acoustic impedance matching, atomization efficiency can be further improved, droplet quality can be improved, and the droplets can be made finer and more uniform. It is understood that the liquid medium can be water, silicone oil, etc., determined according to the range of acoustic impedance values ​​and compatibility with the liquid to be atomized. When a liquid medium cannot be used, a highly elastic solid material with similar acoustic impedance characteristics can be used as a substitute.

[0046] See Figure 3 As shown, in one specific embodiment, a sealing cavity 40 is formed between the anti-corrosion isolation membrane 201, the shell 10 and the protective layer, and the liquid medium is contained in the sealing cavity 40.

[0047] Specifically, the sealed cavity 40 ensures the stability of the liquid medium, prevents leakage, provides a stable environment for acoustic impedance matching, and improves the consistency of atomization effect. This design improves the safety and stability of the liquid medium and ensures stable atomization effect during long-term operation of the atomization mechanism.

[0048] See Figures 3 to 4 As shown, in one specific embodiment, the edge 2011 of the anti-corrosion isolation film 201 is connected to the housing 10, and the middle portion 2012 of the anti-corrosion isolation film 201 is parallel to the ultrasonic atomizing sheet 30.

[0049] Specifically, in this embodiment, the edge 2011 of the anti-corrosion isolation membrane 201 is connected to the housing 10, and the middle portion 2012 is parallel to the ultrasonic atomizing plate 30. This ensures that the distance between the middle portion 2012 of the anti-corrosion isolation membrane 201 and the ultrasonic atomizing plate 30 is uniform, avoiding inconsistent sound wave propagation paths caused by tilting, which would affect the uniformity of atomization. The connection between the edge 2011 and the housing 10 ensures the stability of the structure. This design optimizes the sound wave field distribution, reduces atomization dead angles, and at the same time, the connection of the edge 2011 enhances the installation strength of the anti-corrosion isolation membrane 201, preventing vibration deformation.

[0050] See Figures 3 to 4 and Figure 6 As shown, in a specific embodiment, the housing 10 has a second through hole 102 between the anti-corrosion isolation film 201 and the protective layer, and a transition area 2013 is provided between the edge 2011 and the middle part 2012 of the anti-corrosion isolation film 201, which transitions from top to bottom. The middle part 2012 and the transition area 2013 of the anti-corrosion isolation film 201 are located in the second through hole 102, so that the cross-section of the sealing cavity 40 is U-shaped.

[0051] Specifically, the middle portion 2012 and the transition zone 2013 of the anti-corrosion isolation membrane 201 form the top of the sealed cavity 40, the sidewall of the second through hole 102 forms the sidewall of the sealed cavity 40, and the protective layer forms the bottom plate of the sealed cavity 40, thus enclosing a sealed space with a U-shaped cross-section. Under normal circumstances, the liquid medium in the sealed cavity 40 is full, but under the influence of ultrasonic vibration, the gas in the liquid medium will be discharged. At this time, through the U-shaped sealed cavity 40, the core atomization area between the middle portion 2012 of the anti-corrosion isolation membrane 201 and the protective layer is always filled with liquid medium, and the gas that is vibrated out will rise to the top of the sealed cavity 40, thereby minimizing the reflection and waste of ultrasonic waves at the gas-liquid interface and improving energy utilization. At the same time, the transition design of the transition zone 2013 reduces the stress concentration at the edge 2011 of the anti-corrosion isolation membrane 201, enhances the stability of the structure under high-frequency vibration, and extends the service life. In addition, the U-shaped cavity provides a smooth channel for gas discharge, avoiding bubbles from remaining in the liquid medium and affecting the atomization uniformity.

[0052] See Figures 3 to 4 As shown, in one specific embodiment, an elastic shell 50 is installed inside the housing 10, an ultrasonic atomizing sheet 30 is installed inside the elastic shell 50, and an air cavity 501 is provided below the ultrasonic atomizing sheet 30 in the elastic shell 50.

[0053] Specifically, in this embodiment, an elastic shell 50 is installed inside the housing 10, and the ultrasonic atomizing plate 30 is installed inside the elastic shell 50. An air cavity 501 is provided below the ultrasonic atomizing plate 30 within the elastic shell 50. The design principle is to utilize the buffering effect of the elastic shell 50 to reduce the transmission of vibrations from the ultrasonic atomizing plate 30 to the housing 10. The air cavity 501 can absorb some vibration energy and adjust the acoustic impedance, improving the operational stability of the ultrasonic atomizing plate 30. During operation, the elastic shell 50 buffers the high-frequency vibrations of the ultrasonic atomizing plate 30 through its own deformation, and the air cavity 501, as an acoustic cavity, optimizes the sound wave radiation characteristics. This design reduces equipment operating noise, minimizes the impact of vibration on other components, and simultaneously improves the vibration efficiency of the ultrasonic atomizing plate 30.

[0054] More specifically, the ultrasonic atomizing plate 30 includes a solid-state ceramic plate (not shown in the figure), a first electrode layer (not shown in the figure), and a second electrode layer (not shown in the figure). The solid-state ceramic plate is horizontally positioned and embedded in the elastic shell 50, which can stabilize vibration and reduce energy loss. The first and second electrode layers are respectively located at the middle positions of the upper and lower surfaces of the solid-state ceramic plate, which can form a symmetrical electric field, improve vibration uniformity, and reduce local overheating. A protective layer covers the first electrode layer to prevent the liquid medium from corroding the first electrode layer. The middle part 2012 of the anti-corrosion isolation membrane 201 is located directly above the first electrode layer to ensure efficient transmission of ultrasonic waves. The air cavity 501 is located directly below the second electrode layer, which can buffer vibration, adjust acoustic characteristics, and reduce noise. The overall design optimizes energy conversion efficiency, extends service life, and improves atomization stability.

[0055] In one specific embodiment, the acoustic impedance of the solid-state ceramic sheet is 30 MRayl, the protective layer is a glass glaze with an acoustic impedance of 16 MRayl and a thickness of 0.9 mm, the liquid medium is a glycerol mixture with an acoustic impedance of 6.2 MRayl and a minimum thickness (i.e., the distance between the protective layer and the middle part 2012 of the anti-corrosion isolation film 201) of 0.28 mm, the anti-corrosion isolation film 201 is a PI film with an acoustic impedance of 3.12 MRayl and a thickness of 0.32 mm, and the acoustic impedance of the liquid to be atomized is 1.48 MRayl, so that the transmittance of ultrasound reaches 76.2%, which is much greater than the energy transmittance of conventional atomizers of about 31.4%, greatly improving energy utilization, reducing loss, and significantly improving atomization efficiency and effect.

[0056] See Figures 2 to 4As shown, in a specific embodiment, the housing 10 includes a cover 103 and a base 104 connected to the bottom of the cover 103. The edge 2011 of the anti-corrosion isolation film 201 is pressed between the cover 103 and the base 104. A first through hole 101 is provided on the top of the cover 103, a second through hole 102 is provided on the top of the base 104, and an ultrasonic atomizing sheet 30 is installed inside the base 104.

[0057] Specifically, by adopting a split housing 10, the assembly and maintenance of internal components are facilitated. The press-fit connection between the cover 103 and the base 104 ensures the stable installation structure of the anti-corrosion isolation membrane 201 and provides installation positioning for the ultrasonic atomizing plate 30. During operation, the combined structure of the cover 103 and the base 104 forms a complete sealed space, and the first through hole 101 and the second through hole 102 respectively realize the functions of inputting the liquid to be atomized and internal communication. This design simplifies the assembly process while ensuring the flatness and stability of the ultrasonic atomizing plate 30 during installation.

[0058] See Figures 3 to 4 and Figure 6 As shown, more specifically, the base 104 extends an annular plate 1041 around the outer periphery of the elastic shell 50, and a pressure plate 60 is connected below the annular plate 1041. The outer periphery of the elastic shell 50 abuts against the annular plate 1041, and the bottom abuts against the pressure plate 60.

[0059] Specifically, the structure uses an annular plate 1041 to limit the outer periphery of the elastic shell 50 and a pressure plate 60 to support the bottom of the elastic shell 50, forming a stable fixed structure to ensure that the elastic shell 50 is installed accurately, thereby ensuring the horizontal posture of the ultrasonic atomizing plate 30 and maintaining the stability of the acoustic path during long-term operation.

[0060] Preferably, the pressure plate 60 is detachably connected to the base 104, facilitating the installation, adjustment, and maintenance of the ultrasonic atomizing plate 30. In case of malfunction, it can be quickly disassembled for repair; it also facilitates the replacement of damaged parts, reducing maintenance costs; and it allows for easy internal cleaning, preventing the accumulation of impurities that could affect performance, thus improving the overall reliability and service life of the atomizing mechanism. It is understood that the detachable connection between the pressure plate 60 and the base 104 can be achieved using snap-fit, threaded connections, or by providing slots and inserts between the base 104 and the pressure plate 60, enabling quick assembly and disassembly and improving product usability and maintainability.

[0061] See Figures 3 to 4 As shown, in one specific embodiment, a shielding cover 70 is connected below the pressure plate 60, and a control board 80 is installed inside the shielding cover 70. The control board 80 is electrically connected to the ultrasonic atomizing sheet 30.

[0062] Specifically, the wires leading from the control board 80 pass through the shielding cover 70, the pressure plate 60, and the elastic shell 50, and connect to the ultrasonic atomizing plate 30. The shielding cover 70 provides electromagnetic shielding for the control board 80, preventing external electromagnetic interference from affecting the control board 80 and ensuring that the control board 80 can stably control the ultrasonic atomizing plate 30. This design improves the accuracy and stability of the atomization mechanism control and enhances the overall performance of the equipment.

[0063] See Figures 3 to 4 As shown, in one specific embodiment, a sealing ring 90 is provided on the inner side of the cover 103, and the edge 2011 of the anti-corrosion isolation film 201 is pressed between the sealing ring 90 and the base 104.

[0064] In this embodiment, a sealing ring 90 is provided on the inner side of the cover 103, and the edge 2011 of the anti-corrosion isolation membrane 201 is pressed between the sealing ring 90 and the base 104. The design principle is to enhance the sealing performance of the edge 2011 of the anti-corrosion isolation membrane 201 by using the sealing ring 90, preventing the liquid to be atomized from leaking from the gap between the cover 103 and the base 104. At the same time, the elasticity of the sealing ring 90 can compensate for assembly errors. During operation, the sealing ring 90 undergoes elastic deformation under the pressing action, tightly fitting the edge 2011 of the anti-corrosion isolation membrane 201 to form a reliable seal. This design improves the overall sealing performance of the structure, prevents malfunctions caused by leakage of the liquid to be atomized, and the elastic sealing ring 90 can buffer vibration and reduce noise.

[0065] See Figures 3 to 4 and Figure 6 As shown, in a specific embodiment, the top of the base 104 is provided with an annular connecting groove 1042, and the bottom of the cover 103 is provided with a first connecting plate 1031 on the outer periphery. The first connecting plate 1031 is arranged in an annular shape and is ultrasonically welded to the annular connecting groove 1042.

[0066] Specifically, this embodiment uses ultrasonic welding to achieve a permanent connection between the cover 103 and the base 104. The annular structure ensures the welding seal and uniform strength, and the annular connecting groove 1042 provides welding positioning and fusion space. This design improves the connection strength and sealing of the shell 10, and is more suitable for high-precision sealing requirements compared to traditional connection methods. At the same time, the welding process has a high degree of automation, improving production efficiency.

[0067] In one specific embodiment, a second connecting plate 1043 extends upward from the base 104. The second connecting plate 1043 is arranged in a ring and fitted inside the cover 103. The sealing ring 90 tightly abuts against the inner side of the second connecting plate 1043. An elastic reinforcing ring 100 is also sleeved on the outer periphery of the cover 103.

[0068] Specifically, the design principle of this embodiment is to improve the overall stability of the housing 10 through multiple positioning and sealing structures. The fitting of the second connecting plate 1043 and the cover 103 ensures assembly concentricity, and the sealing ring 90 and the reinforcing ring enhance the sealing performance and structural strength from the inside and outside, respectively. During operation, the fitting structure prevents the cover 103 and the base 104 from shaking relative to each other, the elastic reinforcing ring 100 offsets the gaps caused by vibration, and the sealing ring 90 maintains the internal seal. This design improves the vibration and impact resistance of the housing 10, and the multiple sealing design further reduces the risk of leakage, making it suitable for high vibration or high pressure environments.

[0069] See Figures 1 to 8 As shown, in addition, this utility model embodiment also provides an atomizer, including the atomizing mechanism as described above, and also includes an atomizing cup 110. The atomizing mechanism is installed below the atomizing cup 110, and the inner cavity of the atomizing cup 110 is connected to the first through hole 101.

[0070] Specifically, the atomizing cup 110 is provided with a liquid inlet (not shown in the figure) and a mist outlet (not shown in the figure) connected to the inner cavity, and the bottom is also provided with a mounting hole 1101 connected to the inner cavity. The atomizing mechanism is installed in the mounting hole 1101, and the inner cavity of the atomizing cup 110 is connected to the first through hole 101.

[0071] The atomizer in this embodiment employs the atomizing mechanism described above, along with the structure of the liquid inlet, mist outlet, and mounting hole 1101 of the atomizing cup 110. This allows the liquid to be atomized to flow smoothly through the first through hole 101 to the area above the acoustic impedance matching component 20. Ultrasonic energy is transmitted from the ultrasonic atomizing plate 30 and efficiently transferred to the liquid to be atomized through the acoustic impedance matching component 20, significantly improving atomization efficiency and producing more uniform droplets. Simultaneously, the atomizing cup 110 is securely connected to the atomizing mechanism, ensuring a continuous and stable atomization process, adapting to various scenario requirements. Furthermore, when the liquid to be atomized in the inner cavity decreases, it can be replenished promptly through the liquid inlet, thereby achieving continuous atomization operations.

[0072] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An atomizing mechanism, characterized in that, include: The device comprises a housing, an acoustic impedance matching component, and an ultrasonic atomizing plate. The acoustic impedance matching component and the ultrasonic atomizing plate are installed inside the housing. The top of the housing has a first through hole. The first through hole, the acoustic impedance matching component, and the ultrasonic atomizing plate are arranged sequentially from top to bottom. The first through hole is used to provide a channel for the liquid to be atomized to connect to the top of the acoustic impedance matching component. The acoustic impedance values ​​of the ultrasonic atomizing plate, the acoustic impedance matching component, and the liquid to be atomized decrease sequentially.

2. The atomizing mechanism according to claim 1, characterized in that, The acoustic impedance matching component includes n acoustic impedance matching layers arranged sequentially from top to bottom. The acoustic impedance matching layers are located between the ultrasonic atomizing plate and the liquid to be atomized. The acoustic impedance values ​​of the n acoustic impedance matching layers decrease sequentially from bottom to top and are located between the acoustic impedance values ​​of the ultrasonic atomizing plate and the liquid to be atomized.

3. The atomizing mechanism according to claim 2, characterized in that, The acoustic impedance value of the ultrasonic atomizing plate is Z0, and the acoustic impedance value of the liquid to be atomized is Z... n+1 The acoustic impedance value of the k-th acoustic impedance matching layer is 0.9Z. k Up to 1.1Z k Z k =Z0^{1 - k / (n+1)}*Z n+1 ^{k / (n+1)}, (k=1,2,...,n).

4. The atomizing mechanism according to claim 3, characterized in that, The ultrasonic waves emitted by the ultrasonic atomizing sheet have a wavelength of λ in the k-th acoustic impedance matching layer. k The thickness of the acoustic impedance matching layer in the k-th layer is 0.95d. k up to 1.05d k d k =λ k / 4.

5. The atomizing mechanism according to claim 2, characterized in that, The nth acoustic impedance matching layer from bottom to top is an anti-corrosion isolation film, which is located between the first through hole and the ultrasonic atomizing sheet.

6. The atomizing mechanism according to claim 5, characterized in that, The first layer from bottom to top, the acoustic impedance matching layer, is a protective layer, which is attached to the upper surface of the ultrasonic atomizing sheet.

7. The atomizing mechanism according to claim 6, characterized in that, The number of acoustic impedance matching layers is three, wherein the second acoustic impedance matching layer is a liquid medium disposed between the anti-corrosion isolation membrane and the protective layer.

8. The atomizing mechanism according to claim 7, characterized in that, A sealed cavity is formed between the anti-corrosion isolation membrane, the shell, and the protective layer, and the liquid medium is contained in the sealed cavity.

9. The atomizing mechanism according to claim 8, characterized in that, The edge of the anti-corrosion isolation membrane is connected to the housing, and the middle portion of the anti-corrosion isolation membrane is parallel to the ultrasonic atomizing sheet.

10. The atomizing mechanism according to claim 9, characterized in that, The housing has a second through hole between the anti-corrosion isolation membrane and the protective layer. The anti-corrosion isolation membrane has a transition zone between its edge and middle portion, which transitions from top to bottom. The middle portion of the anti-corrosion isolation membrane and the transition zone are located within the second through hole, so that the cross-section of the sealing cavity is U-shaped.

11. The atomizing mechanism according to claim 9, characterized in that, An elastic shell is installed inside the housing, the ultrasonic atomizing plate is installed inside the elastic shell, and the elastic shell has an air cavity below the ultrasonic atomizing plate.

12. The atomizing mechanism according to claim 10, characterized in that, The housing includes a cover and a base connected to the bottom of the cover. The edge of the anti-corrosion isolation membrane is pressed between the cover and the base. The first through hole is located at the top of the cover, the second through hole is located at the top of the base, and the ultrasonic atomizing sheet is installed inside the base.

13. The atomizing mechanism according to claim 12, characterized in that, The inner side of the cover is provided with a sealing ring, and the edge of the anti-corrosion isolation membrane is pressed between the sealing ring and the base.

14. The atomizing mechanism according to claim 12, characterized in that, The base has an annular connecting groove at its top, and the bottom of the cover has a first connecting plate on its outer periphery. The first connecting plate is arranged in an annular shape and is ultrasonically welded to the annular connecting groove.

15. The atomizing mechanism according to claim 13, characterized in that, The base extends upward to form a second connecting plate, which is arranged in a ring and fitted into the cover body. The sealing ring is tightly abutted against the inner side of the second connecting plate. An elastic reinforcing ring is also fitted around the outer periphery of the cover body.

16. An atomizer, characterized in that, The atomizing mechanism according to any one of claims 1-15 further includes an atomizing cup body, wherein the atomizing mechanism is installed below the atomizing cup body, and the inner cavity of the atomizing cup body is connected to the first through hole.

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